CN107331910B - Charging method and device - Google Patents
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- CN107331910B CN107331910BCN201710525969.4ACN201710525969ACN107331910BCN 107331910 BCN107331910 BCN 107331910BCN 201710525969 ACN201710525969 ACN 201710525969ACN 107331910 BCN107331910 BCN 107331910B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
- H02J7/0088—
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a charging method and apparatus.
Background
With the development of science and technology, electronic devices are gradually popularized in the lives of people. Batteries are one of the important components of electronic devices, which play a crucial role in the proper functioning of the electronic device. When charging a battery of an electronic device, in order to ensure that the battery does not malfunction during charging due to over-high or under-low temperature, it is necessary to detect the temperature of the battery and determine whether to charge the battery according to the detected temperature.
Disclosure of Invention
To overcome the problems in the related art, embodiments of the present disclosure provide a charging method and apparatus. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a charging method including:
acquiring the temperature of a charging interface, wherein the charging interface comprises an interface for outputting charging current or an interface for inputting charging current;
and when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value, reducing or setting the magnitude of the charging current to zero.
In the technical scheme provided by the embodiment of the disclosure, the temperature of the interface outputting the charging current or the interface inputting the charging current is obtained, and when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value, that is, when it is determined that the charging interface is likely to have a fault due to overhigh temperature, the magnitude of the charging current is reduced or set to be zero, so that the heat generated at the charging interface due to the input of the charging current or the output of the charging current through the charging interface is reduced, the charging interface is prevented from continuously keeping higher temperature, and the fault of the charging interface due to overhigh temperature is avoided.
In one embodiment, acquiring the temperature of the charging interface comprises:
and periodically acquiring the temperature of the charging interface by taking the preset time length as a time interval.
Since the temperature of the charging interface may change with time, the temperature of the charging interface may be acquired in time by periodically acquiring the temperature of the charging interface with a preset time length as a time interval.
In one embodiment, reducing the magnitude of the charging current or setting the magnitude of the charging current to zero comprises:
when the charging current is determined to be greater than or equal to the first current intensity threshold value, reducing the size of the charging current;
when the charging current is determined to be less than the first amperage threshold, setting a magnitude of the charging current to zero.
When the charging current is greater than or equal to the first current intensity threshold value, the magnitude of the charging current is reduced, the charging interface is ensured not to have faults due to overhigh temperature, and the charging process is not interrupted; when the charging current is smaller than the first current intensity threshold value, the size of the charging current is set to be zero, and the charging interface is ensured not to break down due to overhigh temperature.
In one embodiment, reducing the magnitude of the charging current comprises:
and reducing the charging current by the current intensity of a preset step length.
Through making charging current reduce the amperage of predetermineeing the step length, can control the range that charging current was reduced, can not reduce too much because of the amperage and influence the charging effect.
In one embodiment, a method provided by an embodiment of the present disclosure further includes:
and when the temperature of the charging interface is determined to be smaller than the second interface temperature threshold, increasing the magnitude of the charging current or setting the magnitude of the charging current as the maximum charging current intensity.
When it is ensured that the charging interface does not fail due to the increase in temperature of the charging interface, the efficiency of charging using the charging current through the charging interface can be improved by increasing the magnitude of the charging current or setting the magnitude of the charging current to the maximum charging current intensity.
According to a second aspect of embodiments of the present disclosure, there is provided a charging device including:
the temperature acquisition module is used for acquiring the temperature of a charging interface, and the charging interface comprises an interface for outputting charging current or an interface for inputting the charging current;
and the first current intensity control module is used for reducing the magnitude of the charging current or setting the magnitude of the charging current to be zero when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value.
In one embodiment, a temperature acquisition module includes:
and the temperature acquisition submodule is used for periodically acquiring the temperature of the charging interface by taking the preset time length as a time interval.
In one embodiment, the first amperage control module includes:
the first current intensity control submodule is used for reducing the size of the charging current when the charging current is determined to be larger than or equal to a first current intensity threshold value;
and the second current intensity control submodule is used for setting the magnitude of the charging current to be zero when the charging current is determined to be smaller than the first current intensity threshold value.
In one embodiment, the first amperage control module includes:
and the third current intensity control submodule is used for reducing the charging current by the current intensity of the preset step length.
In one embodiment, a charging device provided by an embodiment of the present disclosure further includes:
and the second current intensity control module is used for increasing the magnitude of the charging current or setting the magnitude of the charging current as the maximum charging current intensity when the temperature of the charging interface is determined to be smaller than the temperature threshold of the second interface.
According to a third aspect of embodiments of the present disclosure, there is provided a charging device including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the temperature of a charging interface, wherein the charging interface comprises an interface for outputting charging current or an interface for inputting charging current;
and when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value, reducing or setting the magnitude of the charging current to zero.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps in the method provided by any of the embodiments of the first aspect described above.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a diagram illustrating an application scenario of a charging method according to an exemplary embodiment;
FIG. 2a is a schematic flow diagram 1 illustrating a charging method according to an exemplary embodiment;
FIG. 2b is a schematic flow diagram 2 illustrating a charging method according to an exemplary embodiment;
FIG. 2c is a schematic flow diagram 3 illustrating a charging method according to an exemplary embodiment;
FIG. 2d is a flow diagram of a charging method shown in FIG. 4, according to an exemplary embodiment;
FIG. 2e is a schematic flow diagram 5 illustrating a charging method according to an exemplary embodiment;
FIG. 2f is a schematic flow diagram 6 illustrating a charging method according to an exemplary embodiment;
FIG. 2g is a schematic flow diagram 7 illustrating a charging method according to an exemplary embodiment;
FIG. 3 is a schematic flow diagram illustrating a charging method according to an exemplary embodiment;
FIG. 4 is a schematic flow diagram illustrating a charging method according to an exemplary embodiment;
fig. 5a is a schematic structural diagram 1 illustrating a charging device according to an exemplary embodiment;
FIG. 5b is a schematic diagram 2 illustrating the structure of a charging device according to an exemplary embodiment;
FIG. 5c is a schematic diagram 3 illustrating the structure of a charging device according to an exemplary embodiment;
FIG. 5d is a schematic diagram 4 illustrating the structure of a charging device according to an exemplary embodiment;
FIG. 5e is a schematic diagram 5 illustrating the structure of a charging device according to an exemplary embodiment;
FIG. 6 is a block diagram illustrating an apparatus in accordance with an exemplary embodiment;
FIG. 7 is a block diagram illustrating an apparatus in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
In the related art, a temperature sensor may be provided on a battery or a battery protection board of the electronic device, or a temperature sensor may be provided at a housing of the electronic device, and the temperature of the battery in the electronic device at the time of charging or the temperature of the electronic device itself at the time of charging may be acquired by the temperature sensor, and when any one of the above temperatures is too high, the electronic device may be controlled to stop charging. Although the above-mentioned scheme can avoid the battery from breaking down due to the over-high temperature of the battery in the electronic device during charging, or avoid the electronic device from breaking down due to the over-high temperature of the electronic device itself during charging, the above-mentioned scheme does not detect the temperature of the charging interface of the electronic device, and when the temperature of the charging interface is over-high, the charging interface may break down.
In order to solve the above problem, in the technical solution provided in the embodiment of the present disclosure, by obtaining the temperature of the interface outputting the charging current or the interface inputting the charging current, and when it is determined that the temperature of the charging interface is greater than the first interface temperature threshold, that is, it is determined that the charging interface may have a fault due to an excessively high temperature, the magnitude of the charging current is reduced or set to zero, so as to reduce the amount of heat generated at the charging interface due to the input of the charging current or the output of the charging current through the charging interface, so that the charging interface does not continuously maintain a high temperature, and the fault of the charging interface due to an excessively high temperature is avoided.
The technical scheme provided by the embodiment of the disclosure relates to two parties as shown in fig. 1: the charging system comprises a firstelectronic device 101 and a secondelectronic device 103, wherein the firstelectronic device 101 comprises afirst charging interface 102, the secondelectronic device 103 comprises asecond charging interface 104, the firstelectronic device 101 outputs a charging current through thefirst charging interface 102, the secondelectronic device 103 inputs the charging current through thesecond charging interface 104, and when thefirst charging interface 102 is electrically connected with thesecond charging interface 104, the firstelectronic device 101 can output the charging current to the secondelectronic device 103. The firstelectronic device 101 may be a mobile phone, a tablet computer, a smart wearable device, a power adapter, a mobile power supply, a television or a computer, and other devices capable of outputting a charging current, which is not limited in this embodiment of the disclosure. The secondelectronic device 103 may be a mobile phone, a tablet computer, a smart wearable device, a mobile power supply, a television or a computer, and other devices capable of inputting a charging current, which is not limited in the embodiments of the disclosure.
An embodiment of the present disclosure provides a charging method, which may be used for a first electronic device and may also be used for a second electronic device, as shown in fig. 2a, including the followingsteps 201 to 202:
instep 201, the temperature of the charging interface is acquired.
The charging interface comprises an interface for outputting charging current or an interface for inputting charging current.
For example, when the charging method provided by the embodiment of the present disclosure is applied to a first electronic device, the charging interface may be an interface for outputting a charging current to the first charging interface, that is, the first electronic device, and when the charging method provided by the embodiment of the present disclosure is applied to a second electronic device, the charging interface may be an interface for inputting a charging current to the second charging interface, that is, the second electronic device. It should be noted that, the electronic device may output the charging current through one charging interface and input the charging current through the other charging interface at the same time. The Temperature of the charging interface is obtained, a Temperature Sensor may be arranged at the charging interface, and the Temperature of the charging interface is obtained by measuring the Temperature through the Temperature Sensor, wherein the Temperature Sensor may include an Infrared Temperature Sensor (Infrared Temperature Sensor) or a Negative Temperature Coefficient (NTC) thermistor, and the like, and the Temperature of the charging interface on the electronic device may also be obtained by measuring the Temperature of the charging interface through other devices or systems.
The temperature of the charging interface is acquired, the temperature of the charging interface can be detected for one time to acquire the temperature of the charging interface, and the temperature of the charging interface can also be detected for multiple times to acquire the temperature of the charging interface according to the detection results of the multiple times.
For example, taking the charging method provided by the embodiments of the present disclosure as an example of applying to a power adapter, an NTC thermistor may be disposed at a charging interface of the power adapter, and since the resistance value of the NTC thermistor is lower as the temperature is higher, when the voltage across the NTC thermistor is not changed, the current passing through the NTC thermistor is smaller as the temperature is higher, that is, the current is inversely proportional to the temperature of the charging interface. When the power adapter outputs the charging current to the mobile terminal through the charging interface, the temperature of the interface of the power adapter outputting the charging current can be obtained according to the current by detecting the current passing through the NTC thermistor.
For another example, taking the application of the charging method provided by the embodiment of the present disclosure to a mobile terminal as an example, an infrared temperature sensor may be disposed at a charging interface of the mobile terminal. Since Infrared (Infrared) is an electromagnetic wave having a wavelength between microwave and visible light, an object having a temperature higher than absolute zero emits Infrared rays into a surrounding space, and the wavelength of Infrared rays radiated from the object is shorter as the temperature of the object is higher. Therefore, when the mobile terminal outputs the magnitude of the charging current or inputs the charging current through the charging interface, the infrared temperature sensor can be used for detecting the wavelength of infrared rays generated by the charging interface, and the temperature of the charging interface can be acquired according to the detected wavelength of the infrared rays.
Instep 202, when the temperature of the charging interface is determined to be greater than the first interface temperature threshold, the magnitude of the charging current is reduced or set to zero.
For example, the first interface temperature threshold may be preset, or may be a first interface temperature threshold instruction input by the user, and the first interface temperature threshold is obtained according to the first interface temperature threshold instruction. When the temperature of the charging interface is greater than the first interface temperature threshold, it can be considered that if the charging interface is continuously kept at a higher temperature, the charging interface is failed. It should be noted that, if the electronic device outputs the charging current through the first charging interface and inputs the charging current through the second charging interface at the same time, when it is determined that the temperature of the first charging interface is greater than the first interface temperature sub-threshold, the magnitude of the first charging current may be reduced or set to zero; when the temperature of the second charging interface is determined to be greater than the second interface temperature sub-threshold, the magnitude of the second charging current is reduced or set to zero, where the first interface temperature sub-threshold and the second interface temperature sub-threshold may be thresholds with the same value or thresholds with different values.
When the temperature of the charging interface is measured by the electronic device instep 201 to obtain the temperature of the charging interface, it may be determined by the electronic device that the temperature of the charging interface is greater than the first interface temperature threshold according to the temperature of the charging interface and the first interface temperature threshold, or it may be determined by another device or system that the temperature information sent by the electronic device is received, and it is determined that the temperature of the charging interface is greater than the first interface temperature threshold according to the temperature information and the first interface temperature threshold, where the temperature information is used to indicate the temperature of the charging interface.
When the temperature of the charging interface is measured by another device or system to obtain the temperature of the charging interface instep 201, the other device or system may determine that the temperature of the charging interface is greater than the first interface temperature threshold according to the temperature of the charging interface and the first interface temperature threshold, or the electronic device may receive temperature information sent by the other device or system, and determine that the temperature of the charging interface is greater than the first interface temperature threshold according to the temperature information and the first interface temperature threshold, where the temperature information is used to indicate the temperature of the charging interface.
Due to the heat effect of the current, when the charging current passes through the charging interface, certain heat can be generated at the charging interface, and when the resistance value of the charging interface is fixed, the larger the charging current is, the more heat is generated at the charging interface. Therefore, by reducing the magnitude of the charging current or setting the magnitude of the charging current to zero, the amount of heat generated by outputting the magnitude of the charging current or inputting the charging current through the charging interface can be reduced. When the electronic equipment outputs the charging current through the charging interface, the magnitude of the charging current is reduced or set to be zero, and the magnitude of the charging current can be reduced or set to be zero for controlling the electronic equipment; when the electronic device inputs the charging current through the charging interface, the magnitude of the charging current is reduced or set to zero, the magnitude of the charging current can be reduced or set to zero for controlling the electronic device, or the magnitude of the charging current output by the device for controlling the charging current output to the electronic device is reduced or set to zero.
The charging current can be reduced by the current intensity of a preset step length, wherein the current intensity of the preset step length can be preset, and the current intensity of the preset step length can also be used for acquiring a preset step length instruction input by a user and acquiring the current intensity of the preset step length according to the preset step length instruction. The current intensity of the preset step can be used for indicating the current intensity value of the reduction of the charging current and can also be used for indicating the proportion of the reduction of the charging current. For example, when the charging current is 500mA, the current intensity for decreasing the charging current by a preset step may be 1/4 mA, i.e., 125 mA.
For example, taking the application of the charging method provided by the embodiment of the present disclosure to a power adapter as an example, a first interface temperature threshold is set in the power adapter in advance, when the power adapter outputs a charging current to the mobile terminal through a charging interface, the power adapter may determine that the temperature of the charging interface is greater than the first interface temperature threshold according to the acquired temperature of the charging interface and the first interface temperature threshold, and reduce the magnitude of the charging current output through the charging interface or set the magnitude of the charging current output through the charging interface to zero. The power adapter can also send temperature information to the intelligent terminal, the temperature information is used for indicating the temperature of the charging interface obtained by the power adapter, the intelligent terminal obtains a first temperature threshold value input by a user through the touch screen, and when the intelligent terminal determines that the temperature of the charging interface is larger than the first interface temperature threshold value according to the temperature information and the first interface temperature threshold value, the intelligent terminal sends a first current intensity control command to the power adapter, so that the power adapter responds to the current intensity control command to reduce the magnitude of the charging current output through the charging interface or set the magnitude of the charging current output through the charging interface to be zero.
For another example, taking the example that the charging method provided by the embodiment of the present disclosure is applied to an intelligent terminal, the intelligent terminal may be preset with a first interface temperature threshold, and the first temperature threshold input by the user may also be obtained through a touch screen. When the power adapter outputs the charging current to the mobile terminal, the mobile terminal inputs the charging current through the charging interface, and when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value according to the acquired temperature of the charging interface and the first interface temperature threshold value, the intelligent terminal can reduce the magnitude of the charging current input through the charging interface or set the magnitude of the charging current output through the charging interface to be zero, and the intelligent terminal can also send a second current intensity control instruction to the power adapter, so that the power adapter responds to the second current intensity control instruction to reduce the magnitude of the charging current output to the intelligent terminal or set the magnitude of the charging current output to the intelligent terminal to be zero, and the purpose of reducing the magnitude of the charging current input through the charging interface or setting the magnitude of the charging current output through the charging interface to be zero is achieved.
In the technical scheme provided by the embodiment of the disclosure, the magnitude of the output charging current or the temperature of the charging interface inputting the charging current is obtained, and when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value, that is, when it is determined that the charging interface is likely to have a fault due to overhigh temperature, the magnitude of the charging current is reduced or set to be zero, so that the heat generated at the charging interface due to the input of the charging current or the output of the charging current through the charging interface is reduced, the charging interface is prevented from continuously keeping higher temperature, and the fault of the charging interface due to overhigh temperature is avoided.
In one embodiment, as shown in fig. 2b, instep 201, the temperature of the charging interface is obtained, which may be implemented by step 2011:
instep 2011, the temperature of the charging interface is periodically acquired at intervals of a preset time length.
For example, the preset time length may be preset, or the preset time length may be obtained according to the temperature detection instruction.
For example, with t1_waitPeriodic acquisition of the temperature T of the charging interface for a time interval1And according to T obtained each time1Determination of T1If T is greater than the first temperature threshold1＞T1_hotReducing or setting the magnitude of the charging current to zero; if T1≤T1_hotThen the charging current is not reduced and the magnitude of the charging current is not set to zero.
Because the temperature of the charging interface may change along with time, the temperature of the charging interface can be acquired in time through the steps, so that the acquired temperature of the charging interface is closer to the real-time temperature of the charging interface.
In one embodiment, as shown in fig. 2c, instep 202, when it is determined that the temperature of the charging interface is greater than the first interface temperature threshold, the magnitude of the charging current is decreased or set to zero, which may be implemented bysteps 2021 to 2022:
instep 2021, when the temperature of the charging interface is determined to be greater than the first interface temperature threshold and the charging current is determined to be greater than or equal to the first amperage threshold, decreasing the magnitude of the charging current.
Instep 2022, when the temperature of the charging interface is determined to be greater than the first interface temperature threshold and the charging current is determined to be less than the first amperage threshold, the magnitude of the charging current is set to zero.
For example, the first current intensity threshold may be set in advance, or may be a first current intensity threshold instruction input by the user, and the first current intensity threshold is obtained according to the first current intensity threshold instruction. The charging current is determined to be greater than or equal to a first current intensity threshold or the charging current is greater than or equal to the first current intensity threshold, the charging current can be obtained, and the charging current is determined to be greater than or equal to the first current intensity threshold or the charging current is determined to be less than the first current intensity threshold according to the charging current and the first current intensity threshold, wherein the obtained charging current can be directly detected, the voltage between two ends of the charging interface can also be detected, and the charging current can be obtained according to the resistance of the charging interface and the voltage between the two ends of the charging interface.
When the temperature of the charging interface is determined to be larger than the first interface temperature threshold value and the charging current is determined to be larger than or equal to the first current intensity threshold value, the temperature of the charging interface can be considered to be overhigh, at the moment, if the charging current is reduced by a certain threshold value, the charging current still can meet the charging requirement, meanwhile, the heat generated by the charging interface due to the output or input current is reduced, the temperature of the charging interface cannot continuously rise, and the charging interface is prevented from being broken down due to overhigh temperature. When the temperature of the charging interface is determined to be greater than the first interface temperature threshold value and the charging current is determined to be less than the first current intensity threshold value, although the temperature of the charging interface is considered to be too high, if the charging current is reduced at the moment, the charging current may not meet the charging requirement, and the charged device may fail due to too small charging current, for example, the service life of a battery in the charged device is reduced, so that in order to avoid the failure of the charging interface due to too high temperature, the size of the charging current can be set to zero, so that the charging interface does not generate heat due to output or input current, and it is ensured that the charging interface does not fail due to too high temperature
In one embodiment, as shown in fig. 2d, the charging method provided by the embodiment of the present disclosure further includes the following step 203:
instep 203, when the temperature of the charging interface is determined to be less than the second interface temperature threshold, the magnitude of the charging current is increased or set as the maximum charging current intensity.
It should be noted that the sequence ofstep 202 and step 203 may be reversed.
For example, the second interface temperature threshold may be preset, or may be a second interface temperature threshold instruction input by the user, and the second interface temperature threshold is obtained according to the second interface temperature threshold instruction. The maximum charging current intensity may be preset, or may be a maximum charging current intensity instruction input by a user, and the maximum charging current intensity is obtained according to the maximum charging current intensity instruction. The maximum charging current intensity can be regarded as the maximum current intensity allowed by the charged device for charging without failure. When the temperature of the charging interface is determined to be lower than the second interface temperature threshold, the temperature of the charging interface can be considered to be lower, if the temperature of the charging interface is increased to a certain extent due to the fact that the charging current is output or input through the charging interface, the charging interface cannot break down due to the increased temperature, and meanwhile, the charging efficiency is in direct proportion to the charging current intensity, so that the charging current can be increased or the charging current can be set to be the maximum charging current intensity in order to improve the charging efficiency. For example, the second interface temperature threshold may be 200 mA.
When it is ensured that the charging interface does not fail due to the increase in temperature of the charging interface, the efficiency of charging using the charging current can be improved by increasing the magnitude of the charging current or setting the magnitude of the charging current to the maximum charging current intensity.
When the method provided by the embodiment of the present disclosure is applied to a second electronic device, and the second electronic device includes a battery, as shown in fig. 2e, the charging method provided by the embodiment of the present disclosure may further includesteps 204 to 205:
instep 204, the temperature T of the battery is obtainedtb。
Instep 205, when T is determinedtb_1＞Ttb＞Ttb_2And Ttc＜Ttc_1And setting the magnitude of the charging current as the maximum charging current intensity.
Wherein, Ttb_1Is a first battery temperature threshold, Ttb_2Is a second battery temperature threshold, TtcTo the interface temperature, Ttc_1Is a third interface temperature threshold.
When the method provided by the embodiment of the present disclosure is applied to a second electronic device, and the second electronic device includes a housing, as shown in fig. 2f, the charging method provided by the embodiment of the present disclosure may further includesteps 206 to 207:
instep 206, the temperature T of the housing is obtainedts。
Instep 207, when T is determinedts＜Tts_1And Ttc＜Ttc_1And setting the magnitude of the charging current as the maximum charging current intensity.
Wherein, Tts_1Is the housing temperature threshold.
When the method provided by the embodiment of the present disclosure is applied to a second electronic device, and the second electronic device includes a housing and a battery, as shown in fig. 2g, the charging method provided by the embodiment of the present disclosure may further includesteps 208 to 209:
in step (b)Instep 208, the temperature T of the battery is obtainedtbAnd the temperature T of the outer shellts；
Instep 209, when T is determinedtb_1＞Ttb＞Ttb_2And Tts＜Tts_1And Ttc＜Ttc_1And setting the magnitude of the charging current as the maximum charging current intensity.
An embodiment of the present disclosure provides a charging method, which may be used for a first electronic device and may also be used for a second electronic device, as shown in fig. 3, including the followingsteps 301 to 302:
instep 301, the temperature of the charging interface is periodically acquired at intervals of a preset time length.
Instep 302, when it is determined that the temperature of the charging interface is greater than the first interface temperature threshold and the charging current is greater than or equal to the first current intensity threshold, the charging current is decreased by the current intensity of the preset step.
Instep 303, when it is determined that the temperature of the charging interface is greater than the first interface temperature threshold and the charging current is less than the first current intensity threshold, the magnitude of the charging current is set to zero.
In the technical scheme provided by the embodiment of the disclosure, the temperature of a charging interface is periodically acquired by taking a preset time length as a time interval, the temperature of an interface outputting charging current or an interface inputting charging current is acquired in time, and when the temperature of the charging interface is determined to be greater than a first interface temperature threshold value and the charging current is determined to be greater than or equal to a first current intensity threshold value, namely when it is determined that the charging interface is likely to have a fault due to overhigh temperature and the charging current is reduced, the charging interface is ensured not to have a fault due to overhigh temperature and the charging process is not interrupted; the temperature of the charging interface is determined to be larger than a first interface temperature threshold value and the charging current is determined to be smaller than a first current intensity threshold value, namely when it is determined that the charging interface is likely to have a fault due to overhigh temperature and the charging current is reduced, the charging current is set to be zero, and the charging interface is ensured not to have a fault due to overhigh temperature.
An embodiment of the present disclosure provides a charging method, which may be used for a first electronic device and may also be used for a second electronic device, as shown in fig. 4, including the followingsteps 301 to 302:
instep 401, the temperature of the charging interface is periodically acquired at intervals of a preset time length.
Instep 402, when it is determined that the temperature of the charging interface is greater than the first interface temperature threshold and the charging current is greater than or equal to the first current intensity threshold, the charging current is decreased by the current intensity of the preset step.
Instep 403, when the temperature of the charging interface is determined to be greater than the first interface temperature threshold and the charging current is determined to be less than the first amperage threshold, the magnitude of the charging current is set to zero.
Instep 404, when it is determined that the temperature of the charging interface is less than the second interface temperature threshold, the magnitude of the charging current is increased or set to be the maximum charging current intensity.
It should be noted that the sequence ofsteps 402 to 403 and 404 may be reversed.
In the technical scheme provided by the embodiment of the disclosure, the temperature of a charging interface is periodically acquired by taking a preset time length as a time interval, the temperature of an interface outputting charging current or an interface inputting charging current is acquired in time, and when the temperature of the charging interface is determined to be greater than a first interface temperature threshold value and the charging current is determined to be greater than or equal to a first current intensity threshold value, namely when it is determined that the charging interface is likely to have a fault due to overhigh temperature and the charging current is reduced, the charging interface is ensured not to have a fault due to overhigh temperature and the charging process is not interrupted; the temperature of the charging interface is determined to be larger than a first interface temperature threshold value and the charging current is determined to be smaller than a first current intensity threshold value, namely when it is determined that the charging interface is likely to have a fault due to overhigh temperature and the charging current is reduced, the charging current is set to be zero, and the charging interface is ensured not to have a fault due to overhigh temperature. When it is ensured that the charging interface does not fail due to the increase in temperature of the charging interface, the efficiency of charging using the charging current through the charging interface can be improved by increasing the magnitude of the charging current or setting the magnitude of the charging current to the maximum charging current intensity.
An embodiment of the present disclosure provides a charging apparatus, which may be located in or as a first electronic device, or may be located in or as a second electronic device, as shown in fig. 5a, where the charging apparatus 500 includes:
the temperature obtaining module 501 is configured to obtain a temperature of a charging interface, where the charging interface includes an interface for outputting a charging current or an interface for inputting a charging current.
The first currentintensity control module 502 is configured to reduce the magnitude of the charging current or set the magnitude of the charging current to zero when it is determined that the temperature of the charging interface is greater than the first interface temperature threshold.
In one embodiment, as shown in fig. 5b, the temperature acquisition module 501 includes:
the temperature obtaining sub-module 5011 is configured to periodically obtain the temperature of the charging interface at intervals of a preset time length.
In one embodiment, as shown in fig. 5c, the first currentintensity control module 502 includes:
the first current level control submodule 5021 is used for reducing the magnitude of the charging current when the charging current is determined to be greater than or equal to the first current level threshold value.
The second current level control submodule 5022 is configured to set the magnitude of the charging current to zero when the charging current is determined to be less than the first current level threshold.
In one embodiment, as shown in fig. 5d, the first currentintensity control module 502 includes:
the third current intensity control submodule 5023 is used for reducing the charging current by the current intensity of the preset step length.
In one embodiment, as shown in fig. 5e, the charging device 500 provided by the embodiment of the present disclosure further includes:
and the second currentintensity control module 503 is configured to increase the magnitude of the charging current or set the magnitude of the charging current as the maximum charging current intensity when it is determined that the temperature of the charging interface is smaller than the second interface temperature threshold.
The embodiment of the disclosure provides a charging device, which can reduce the magnitude of a charging current or set the magnitude of the charging current to zero by obtaining the temperature of an interface outputting the charging current or an interface inputting the charging current and when it is determined that the temperature of the charging interface is greater than a first interface temperature threshold value, that is, it is determined that the charging interface may have a fault due to an excessively high temperature, so as to reduce the heat generated at the charging interface due to the input of the charging current or the output of the charging current through the charging interface, so that the charging interface does not continuously maintain a high temperature, and the fault of the charging interface due to an excessively high temperature is avoided.
Fig. 6 is a block diagram illustrating a charging device 60 according to an exemplary embodiment, where the charging device 60 may be a terminal or a part of the terminal, and the charging device 60 includes:
a processor 601;
a memory 602 for storing instructions executable by the processor 601;
wherein the processor 601 is configured to:
acquiring the temperature of a charging interface, wherein the charging interface comprises an interface for outputting charging current or an interface for inputting charging current;
and when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value, reducing or setting the magnitude of the charging current to zero.
In one embodiment, the processor 601 may be further configured to:
and periodically acquiring the temperature of the charging interface by taking the preset time length as a time interval.
In one embodiment, the processor 601 may be further configured to:
when the charging current is determined to be greater than or equal to the first current intensity threshold value, reducing the size of the charging current;
when the charging current is determined to be less than the first amperage threshold, setting a magnitude of the charging current to zero.
In one embodiment, the processor 601 may be further configured to:
and reducing the charging current by the current intensity of a preset step length.
In one embodiment, the processor 601 may be further configured to:
and when the temperature of the charging interface is determined to be smaller than the second interface temperature threshold, increasing the magnitude of the charging current or setting the magnitude of the charging current as the maximum charging current intensity.
The embodiment of the disclosure provides a charging device, which can reduce the magnitude of a charging current or set the magnitude of the charging current to zero by obtaining the temperature of an interface outputting the charging current or an interface inputting the charging current and when it is determined that the temperature of the charging interface is greater than a first interface temperature threshold value, that is, it is determined that the charging interface may have a fault due to an excessively high temperature, so as to reduce the heat generated at the charging interface due to the input of the charging current or the output of the charging current through the charging interface, so that the charging interface does not continuously maintain a high temperature, and the fault of the charging interface due to an excessively high temperature is avoided.
Fig. 7 is a block diagram illustrating anapparatus 700 for charging, theapparatus 700 being adapted for use with a first electronic device, according to an example embodiment. For example, theapparatus 700 may be a mobile phone, a computer, a digital broadcast electronic device, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Theapparatus 700 may include one or more of the following components: aprocessing component 702, amemory 704, apower component 706, amultimedia component 708, anaudio component 710, an input/output (I/O)interface 712, asensor component 714, and acommunication component 716.
Theprocessing component 702 generally controls overall operation of thedevice 700, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Theprocessing element 702 may include one ormore processors 720 to execute instructions to perform all or part of the steps of the methods described above. Further, theprocessing component 702 may include one or more modules that facilitate interaction between theprocessing component 702 and other components. For example, theprocessing component 702 may include a multimedia module to facilitate interaction between themultimedia component 708 and theprocessing component 702.
Thememory 704 is configured to store no various types of data to support operations at theapparatus 700. Examples of such data include instructions for any application or method operating ondevice 700, contact data, phonebook data, messages, pictures, videos, and so forth. Thememory 704 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Thepower supply component 706 provides power to the various components of thedevice 700. Thepower components 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for theapparatus 700.
Themultimedia component 708 includes a screen that provides an output interface between thedevice 700 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, themultimedia component 708 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when thedevice 700 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
Theaudio component 710 is configured to output and/or input audio signals. For example,audio component 710 includes a Microphone (MIC) configured to receive external audio signals whenapparatus 700 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in thememory 704 or transmitted via thecommunication component 716. In some embodiments,audio component 710 also includes a speaker for outputting audio signals.
The I/O interface 712 provides an interface between theprocessing component 702 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
Thesensor assembly 714 includes one or more sensors for providing status assessment of various aspects of theapparatus 700. For example,sensor assembly 714 may detect an open/closed state ofdevice 700, the relative positioning of components, such as a display and keypad ofdevice 700,sensor assembly 714 may also detect a change in position ofdevice 700 or a component ofdevice 700, the presence or absence of user contact withdevice 700, orientation or acceleration/deceleration ofdevice 700, and a change in temperature ofdevice 700. Thesensor assembly 714 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. Thesensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, thesensor assembly 714 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
Thecommunication component 716 is configured to facilitate wired or wireless communication between theapparatus 700 and other devices. Theapparatus 700 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, thecommunication component 716 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, thecommunication component 716 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, theapparatus 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as thememory 704 comprising instructions, executable by theprocessor 720 of thedevice 700 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium, wherein instructions, when executed by a processor of anapparatus 700, enable theapparatus 700 to perform the above charging method, the method comprising:
acquiring the temperature of a charging interface, wherein the charging interface comprises an interface for outputting charging current or an interface for inputting charging current;
and when the temperature of the charging interface is determined to be greater than the first interface temperature threshold value, reducing or setting the magnitude of the charging current to zero.
In one embodiment, acquiring the temperature of the charging interface comprises:
and periodically acquiring the temperature of the charging interface by taking the preset time length as a time interval.
In one embodiment, reducing the magnitude of the charging current or setting the magnitude of the charging current to zero comprises:
when the charging current is determined to be greater than or equal to the first current intensity threshold value, reducing the size of the charging current;
when the charging current is determined to be less than the first amperage threshold, setting a magnitude of the charging current to zero.
In one embodiment, reducing the magnitude of the charging current comprises:
and reducing the charging current by the current intensity of a preset step length.
In one embodiment, a method provided by an embodiment of the present disclosure further includes:
and when the temperature of the charging interface is determined to be smaller than the second interface temperature threshold, increasing the magnitude of the charging current or setting the magnitude of the charging current as the maximum charging current intensity.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710525969.4ACN107331910B (en) | 2017-06-30 | 2017-06-30 | Charging method and device |
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| CN201710525969.4ACN107331910B (en) | 2017-06-30 | 2017-06-30 | Charging method and device |
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| CN108390117B (en)* | 2018-03-14 | 2020-10-02 | 维沃移动通信有限公司 | Charging method and mobile terminal |
| WO2019213915A1 (en)* | 2018-05-10 | 2019-11-14 | 华为技术有限公司 | Charging protection method and device |
| CN113844310A (en)* | 2021-10-09 | 2021-12-28 | 华为数字能源技术有限公司 | Method for controlling a charging system and charging system |
| CN113922459B (en)* | 2021-10-22 | 2025-01-28 | 北京小米移动软件有限公司 | Charging protection method, device, electronic device and storage medium |
| CN114739010A (en)* | 2021-12-28 | 2022-07-12 | 青岛经济技术开发区海尔热水器有限公司 | Control method, device and equipment of electric water heater and computer program product |
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