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CN105157237B - The control method and control device of heater - Google Patents

The control method and control device of heater
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Publication number
CN105157237B
CN105157237BCN201510586921.5ACN201510586921ACN105157237BCN 105157237 BCN105157237 BCN 105157237BCN 201510586921 ACN201510586921 ACN 201510586921ACN 105157237 BCN105157237 BCN 105157237B
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Prior art keywords
heater
blower
control
starting
current value
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CN201510586921.5A
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CN105157237A (en
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李松
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Abstract

The present invention provides a kind of control method of heater and control devices, wherein, the control method of the heater, comprising: when receiving the instruction for starting the heater, the blower starting for radiating to the heater is controlled, and detects the running current of the blower;When the running current for detecting the blower is greater than or equal to predetermined current value, the heater starting is controlled.According to the technical solution of the present invention, it is possible to prevente effectively from heter temperature is excessively high and the problem of being damaged to the element device of surrounding, improve the safety that heater uses.

Description

The control method and control device of heater
Technical field
The present invention relates to heater technical fields, control method and a kind of heating in particular to a kind of heaterThe control device of device.
Background technique
Since the temperature of heater at runtime is higher, it is such as used for the Wind-cooling type heater of air conditioner, in order to avoid to addingThe component on hot device periphery damages, and usually requires to increase blower to radiate to heater, but when blower occursWhen failure, heater surface temperatures can be steeply risen, and may be damaged the element device on heater periphery.
Current guard method is to place an automatic recovery temperature controller and temperature controller with manual reset on the periphery of heater,And the two is connected in the control loop of heater.For restoring temperature controller automatically, set when the temperature of temperature controller perception is higher thanWhen determining break-off signal, temperature controller built-in switch be will disconnect, when recovery temperature of the temperature controller lower than setting, temperature controller built-in switchIt can connect;For temperature controller with manual reset, when temperature is higher than the protection temperature of setting, temperature controller be will disconnect, when temperature controller is lowWhen the recovery temperature of setting, user is needed to restore manually by reset key.
Although increase the automatic temperature controller and temperature controller with manual reset of restoring starting protection can act on to a certain extent,Be practical automatic recovery temperature controller and temperature controller with manual reset when design heater type selecting it is more troublesome, need largelyExperiment is to determine.And due to the presence for restoring temperature controller and temperature controller with manual reset own temperature protection error automatically, in realityIn the use process of border, when protecting generation, may or surrounding can be damaged other components, it is also less safe.
Therefore, how effectively to avoid heter temperature excessively high and the element device of surrounding is damaged to become urgently solveCertainly the technical issues of.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, effectively preventing adding an object of the present invention is to provide a kind of control program of new heaterHot device temperature is excessively high and the problem of being damaged to the element device of surrounding, improve the safety that heater uses.
To achieve the above object, according to the embodiment of the first aspect of the invention, a kind of controlling party of heater is proposedMethod, comprising: when receiving the instruction for starting the heater, control the blower for radiating to the heater and openIt is dynamic, and detect the running current of the blower;When the running current for detecting the blower is greater than or equal to predetermined current value,Control the heater starting.
The control method of heater according to an embodiment of the present invention, due to the running current of blower and the revolving speed of blower and windPositive correlation is measured, therefore by the way that when receiving the instruction of starting heater, control blower starts, and is detecting blowerRunning current be greater than or equal to predetermined current value when control heater starting, allow to reach certain in the air quantity of blowerValue, restart heater when can effectively radiate to heater, effectively prevent heter temperature it is excessively high and to surroundingElement device the problem of damaging, improve the safety that heater uses.
The control method of heater according to the abovementioned embodiments of the present invention can also have following technical characteristic:
According to one embodiment of present invention, after controlling the blower starting, further includes: record the fortune of the blowerRow duration;If the running current of the blower is still less than described when the operation duration of the blower reaches the first scheduled durationPredetermined current value then carries out failure prompting.
The control method of heater according to an embodiment of the present invention reaches the first scheduled duration in the operation duration of blowerWhen, if the running current of blower still less than predetermined current value, illustrates that blower is likely to occur failure, it is therefore desirable to carry out failure and mentionIt wakes up, to remind user to carry out malfunction elimination.Preferably, when carrying out failure prompting, do not start heater.Wherein, failure is carried outThe operation of prompting can be sound prompting or display fault message etc.;First scheduled duration can be three minutes, be also possible to itIts numerical value.
According to one embodiment of present invention, after controlling the heater starting, further includes: wind described in real-time detectionThe running current of machine;If detecting, the running current of the blower is less than the predetermined current value, controls the heater and stopsIt only works, and carries out failure prompting.
The control method of the heater of embodiment according to the present invention, by after heater starting, if detecting blowerRunning current be less than above-mentioned predetermined current value, then control heater and stop working, can be to avoid in the course of work of heaterIn, lead to that heter temperature is excessively high since fan operation breaks down and damage the component on heater periphery, is effectively ensuredThe safety in utilization of heater.
According to one embodiment of present invention, further includes: when receiving the instruction for closing the heater, described in controlHeater stops working, and controls the blower and continue to run;Reach second in advance controlling the duration that the blower continues to runWhen periodically long, control the blower and stop working.
The control method of the heater of embodiment according to the present invention, by controlling wind after control heater stops workingMachine continues to run the second scheduled duration, makes it possible to avoid the component after heater stops working due to waste heat and to surroundingIt damages, improves the safety in utilization of heater.Wherein, the second scheduled duration can be three minutes, be also possible to otherNumerical value.
Minimum current value when according to one embodiment of present invention, according to the fan operation determines the scheduled currentValue.
Specifically, minimum current value when can be using fan operation, can also be by minimum electricity as the predetermined current valueFlow valuve and the product of a specified coefficient are as predetermined current value.I.e. technical staff according to the actual parameter of blower and can makeWith environment, the predetermined current value is set.
Embodiment according to a second aspect of the present invention, it is also proposed that a kind of control device of heater, comprising: control is singleMember, for when receiving the instruction for starting the heater, controlling the blower starting for radiating to the heater,And when detection unit detects the running current of the blower more than or equal to predetermined current value, controls the heater and openIt is dynamic;The detection unit is used for, and after described control unit controls the blower starting, detects the operation electricity of the blowerStream.
The control device of heater according to an embodiment of the present invention, due to the running current of blower and the revolving speed of blower and windPositive correlation is measured, therefore by the way that when receiving the instruction of starting heater, control blower starts, and is detecting blowerRunning current be greater than or equal to predetermined current value when control heater starting, allow to reach certain in the air quantity of blowerValue, restart heater when can effectively radiate to heater, effectively prevent heter temperature it is excessively high and to surroundingElement device the problem of damaging, improve the safety that heater uses.
The control device of heater according to the abovementioned embodiments of the present invention can also have following technical characteristic:
According to one embodiment of present invention, further includes: recording unit, for controlling the blower in described control unitAfter starting, the operation duration of the blower is recorded;Failure reminding unit, in the recording unit records to the blowerOperation duration when reaching the first scheduled duration, if the running current of the blower is carried out still less than the predetermined current valueFailure is reminded.
The control device of heater according to an embodiment of the present invention reaches the first scheduled duration in the operation duration of blowerWhen, if the running current of blower still less than predetermined current value, illustrates that blower is likely to occur failure, it is therefore desirable to carry out failure and mentionIt wakes up, to remind user to carry out malfunction elimination.Preferably, when carrying out failure prompting, do not start heater.Wherein, failure is carried outThe operation of prompting can be sound prompting or display fault message etc.;First scheduled duration can be three minutes, be also possible to itIts numerical value.
According to one embodiment of present invention, the detection unit is also used to, and controls the heating in described control unitAfter device starting, the running current of blower described in real-time detection;Described control unit is also used to, and is detected in the detection unitWhen the running current of the blower is less than the predetermined current value, controls the heater and stop working, and carry out failure prompting.
The control device of the heater of embodiment according to the present invention, by after heater starting, if detecting blowerRunning current be less than above-mentioned predetermined current value, then control heater and stop working, can be to avoid in the course of work of heaterIn, lead to that heter temperature is excessively high since fan operation breaks down and damage the component on heater periphery, is effectively ensuredThe safety in utilization of heater.
According to one embodiment of present invention, described control unit is also used to: receiving the finger for closing the heaterIt when enabling, controls the heater and stops working, and control the blower and continue to run;When the control blower continues to runWhen length reaches the second scheduled duration, controls the blower and stop working.
The control device of the heater of embodiment according to the present invention, by controlling wind after control heater stops workingMachine continues to run the second scheduled duration, makes it possible to avoid the component after heater stops working due to waste heat and to surroundingIt damages, improves the safety in utilization of heater.Wherein, the second scheduled duration can be three minutes, be also possible to otherNumerical value.
According to one embodiment of present invention, further includes: processing unit, minimum electricity when for according to the fan operationFlow valuve determines the predetermined current value.
Specifically, minimum current value when can be using fan operation, can also be by minimum electricity as the predetermined current valueFlow valuve and the product of a specified coefficient are as predetermined current value.I.e. technical staff according to the actual parameter of blower and can makeWith environment, the predetermined current value is set.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following descriptionObviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figuresObviously and it is readily appreciated that, in which:
Fig. 1 shows the schematic flow diagram of the control method of the heater of embodiment according to the present invention;
Fig. 2 shows the schematic block diagrams of the control device of the heater of embodiment according to the present invention;
Fig. 3 shows the schematic block diagram of the control system of the heater of embodiment according to the present invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific realApplying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the applicationFeature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used alsoTo be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described belowSpecific embodiment limitation.
Fig. 1 shows the schematic flow diagram of the control method of the heater of embodiment according to the present invention.
As shown in Figure 1, the control method of the heater of embodiment according to the present invention, comprising:
Step 102, it when receiving the instruction for starting the heater, controls for radiating to the heaterBlower starting, and detect the running current of the blower;
Step 104, when the running current for detecting the blower is greater than or equal to predetermined current value, the heating is controlledDevice starting.
Specifically, due to the revolving speed and air quantity positive correlation of the running current of blower and blower, by connecingWhen receiving the instruction of starting heater, control blower starting, and it is greater than or equal to predetermined electricity in the running current for detecting blowerHeater starting is controlled when flow valuve, allows to reach certain value in the air quantity of blower, effectively heater can be carried out scatteredRestart heater when hot, effectively prevent heter temperature it is excessively high and the problem of damaged to the element device of surrounding, improveThe safety that heater uses.
The control method of heater according to the abovementioned embodiments of the present invention can also have following technical characteristic:
According to one embodiment of present invention, after controlling the blower starting, further includes: record the fortune of the blowerRow duration;If the running current of the blower is still less than described when the operation duration of the blower reaches the first scheduled durationPredetermined current value then carries out failure prompting.
When the operation duration of blower reaches the first scheduled duration, if the running current of blower still less than predetermined current value,Then illustrate that blower is likely to occur failure, it is therefore desirable to failure prompting is carried out, to remind user to carry out malfunction elimination.Preferably, existWhen carrying out failure prompting, do not start heater.Wherein, the operation for carrying out failure prompting can be sound prompting or display failure letterBreath etc.;First scheduled duration can be three minutes, be also possible to other numerical value.
According to one embodiment of present invention, after controlling the heater starting, further includes: wind described in real-time detectionThe running current of machine;If detecting, the running current of the blower is less than the predetermined current value, controls the heater and stopsIt only works, and carries out failure prompting.
By the way that after heater starting, if detecting, the running current of blower is less than above-mentioned predetermined current value, and control addsHot device stops working, and can lead to heater temperature since fan operation breaks down to avoid in the course of work of heaterComponent that is high and damaging heater periphery is spent, the safety in utilization of heater has been effectively ensured.
According to one embodiment of present invention, further includes: when receiving the instruction for closing the heater, described in controlHeater stops working, and controls the blower and continue to run;Reach second in advance controlling the duration that the blower continues to runWhen periodically long, control the blower and stop working.
The second scheduled duration is continued to run by controlling blower after control heater stops working, makes it possible to avoidHeater is damaged after stopping working due to waste heat and to the component of surrounding, and the safety in utilization of heater is improved.ItsIn, the second scheduled duration can be three minutes, be also possible to other numerical value.
Minimum current value when according to one embodiment of present invention, according to the fan operation determines the scheduled currentValue.
Specifically, minimum current value when can be using fan operation, can also be by minimum electricity as the predetermined current valueFlow valuve and the product of a specified coefficient are as predetermined current value.I.e. technical staff according to the actual parameter of blower and can makeWith environment, the predetermined current value is set.
Fig. 2 shows the schematic block diagrams of the control device of the heater of embodiment according to the present invention.
As shown in Fig. 2, the control device 200 of the heater of embodiment according to the present invention, comprising: 202 He of control unitDetection unit 204.
Wherein, control unit 202, for when receiving the instruction for starting the heater, control to described for addThe blower starting that hot device radiates, and detect that the running current of the blower is greater than or equal in detection unit 204 and make a reservation forWhen current value, the heater starting is controlled;The detection unit 204 is used for, and controls the blower in described control unit 202After starting, the running current of the blower is detected.
Specifically, due to the revolving speed and air quantity positive correlation of the running current of blower and blower, by connecingWhen receiving the instruction of starting heater, control blower starting, and it is greater than or equal to predetermined electricity in the running current for detecting blowerHeater starting is controlled when flow valuve, allows to reach certain value in the air quantity of blower, effectively heater can be carried out scatteredRestart heater when hot, effectively prevent heter temperature it is excessively high and the problem of damaged to the element device of surrounding, improveThe safety that heater uses.
The control device 200 of heater according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, further includes: recording unit 206, for controlling institute in described control unit 202After stating blower starting, the operation duration of the blower is recorded;Failure reminding unit 208, for remembering in the recording unit 206When recording the operation duration of the blower and reaching the first scheduled duration, if the running current of the blower is still less than the predetermined electricityFlow valuve then carries out failure prompting.
When the operation duration of blower reaches the first scheduled duration, if the running current of blower still less than predetermined current value,Then illustrate that blower is likely to occur failure, it is therefore desirable to failure prompting is carried out, to remind user to carry out malfunction elimination.Preferably, existWhen carrying out failure prompting, do not start heater.Wherein, the operation for carrying out failure prompting can be sound prompting or display failure letterBreath etc.;First scheduled duration can be three minutes, be also possible to other numerical value.
According to one embodiment of present invention, the detection unit 204 is also used to, and controls institute in described control unit 202After stating heater starting, the running current of blower described in real-time detection;Described control unit 202 is also used to, in the detectionWhen unit 204 detects that the running current of the blower is less than the predetermined current value, controls the heater and stop working, andCarry out failure prompting.
By the way that after heater starting, if detecting, the running current of blower is less than above-mentioned predetermined current value, and control addsHot device stops working, and can lead to heater temperature since fan operation breaks down to avoid in the course of work of heaterComponent that is high and damaging heater periphery is spent, the safety in utilization of heater has been effectively ensured.
According to one embodiment of present invention, described control unit 202 is also used to: closing the heater receivingIt when instruction, controls the heater and stops working, and control the blower and continue to run;Controlling what the blower continued to runWhen duration reaches the second scheduled duration, controls the blower and stop working.
The second scheduled duration is continued to run by controlling blower after control heater stops working, makes it possible to avoidHeater is damaged after stopping working due to waste heat and to the component of surrounding, and the safety in utilization of heater is improved.ItsIn, the second scheduled duration can be three minutes, be also possible to other numerical value.
According to one embodiment of present invention, further includes: processing unit 210, for according to when the fan operation mostLow current value determines the predetermined current value.
Specifically, minimum current value when can be using fan operation, can also be by minimum electricity as the predetermined current valueFlow valuve and the product of a specified coefficient are as predetermined current value.I.e. technical staff according to the actual parameter of blower and can makeWith environment, the predetermined current value is set.
Fig. 3 shows the schematic block diagram of the control system of the heater of embodiment according to the present invention.
As shown in figure 3, the control system of the heater of embodiment according to the present invention, comprising: central processing unit 302 is depositedReservoir 304, blower current detection means 314, fan control module 310, heater control module 306, blower 312, heater308, display device 316;Central processing unit 302 is added by heater control module 306 and the control of fan control module 310 respectivelyThe operation of hot device 308 and blower 312, memory 304 are used to store the information such as the operation of blower 312 and heater 308, blower electricityFlow detection device 314 is used to 312 running current of detection blower fan, and fan control module 310 controls blower 312 and runs, heater controlMolding block 306 controls heater 308 and runs, and blower 312 is used to cool down to heater 308, and heater 308 is for carrying out heating productionHeat amount, display device 316 show the information such as failure.
The course of work is as follows: heater 308 needs to measure the minimum current value A0 of the operation of blower 312 when designAnd it is stored in memory 304;At runtime, central processing unit 302 first controls the operation of blower 312 to heater, then blower electricity314 detection blower fan electric current of flow detection device could start heater 308 when blower electric current is greater than A0;In heater 308Real-time monitoring blower electric current in operation, when blower electric current be less than A0, immediately close heater 308.The process specifically includes followingStep:
S0: heater 308 needs to measure the minimum current value A0 of the operation of blower 312 and is stored in when designIn reservoir 304;
S1: heater 308 starts: when heater 308 starts, central processing unit 302 first controls the operation of blower 312, then314 detection blower fan electric current of blower current detection means restarts heater 308 when blower electric current is greater than A0.
S2: heater 308 is run: at runtime, 314 real-time monitoring blower of blower current detection means is electric for heater 308Stream, when blower electric current is less than A0, central processing unit 302, which is immediately controlled, closes heater 308, and sends fault message to displayDevice 316.
S3: heater 308 stops: when heater 308 stops, central processing unit 302, which first controls, closes heater 308, andControl blower 312 turns off blower 312 after continuing to run a period of time (such as 3 minutes, can be set according to the actual situation).
Meanwhile in step sl, if blower current detection means 314 is being advised after the control fan operation of central processing unit 302The blower electric current that (such as 3 minutes, can be set according to the actual situation) detect in fixing time is both less than A0, then central processingDevice 302 sends fault message to display device 316.
In the technical solution of above-described embodiment, the testing result of blower current detection means 314 can also be issued directlyHeater control module 306 is controlled by heater control module 306 according to the testing result of blower current detection means 314The operation of heater 308, without passing through central processing unit 302;Testing result and the minimum electricity of blower current detection means 314The method that comparison can be used in the comparison of stream A0 is realized, can also directly be realized using hardware circuit;In memory 304Data can be stored in the memory of heater 308 itself, can also be stored in can with heater 308 communicate other dressIn setting, for example, external controller, line control machine, remote controler, mobile phone, intelligent terminal etc., remote network service device etc..
In addition, those skilled in the art are it is to be appreciated that heater mentioned in the present invention can be in air conditioning chamberThe electric heater that machine uses, is also possible to gas furnace, wall-hung boiler, the electric heater in warm-air drier, it is all need by blower comeHeater control program proposed by the present invention is suitable for the usage scenario that heater radiates.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, it is contemplated that is by restoring automatically in the prior artTemperature controller and temperature controller with manual reset realize overheat protector, but due to restore automatically temperature controller and temperature controller with manual reset fromThe presence of body temperature protection error, so that in actual use, it, may or can be to other yuan of surrounding when protecting generationDevice damages.Therefore, the invention proposes a kind of control program of new heater, one can be reached in the air quantity of blowerDefinite value restarts heater when can effectively radiate to heater, and in the operational process of heater, passes through inspectionThe running current of blower is surveyed to control the start and stop of heater work, effectively prevents the excessively high and element to surrounding of heter temperatureThe problem of device damages improves the safety that heater uses.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this fieldFor art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repairChange, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (6)

CN201510586921.5A2015-09-152015-09-15The control method and control device of heaterActiveCN105157237B (en)

Priority Applications (1)

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Application NumberPriority DateFiling DateTitle
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CN105157237A CN105157237A (en)2015-12-16
CN105157237Btrue CN105157237B (en)2019-03-08

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Publication numberPriority datePublication dateAssigneeTitle
CN106042834B (en)*2016-06-242019-07-09北京新能源汽车股份有限公司Control method and system for warm air of air conditioner of electric automobile
CN106053998B (en)*2016-07-152019-01-18珠海格力电器股份有限公司Detection method and device for PTC heater of air conditioner
CN112394659A (en)*2020-10-242021-02-23广东格兰仕集团有限公司Fan current detection control method for household appliance
CN112944452B (en)*2021-04-252025-03-14格力大松(宿迁)生活电器有限公司 A control device and method for starting an electric heater in a low temperature environment and an electric heater
CN113531913A (en)*2021-06-282021-10-22青岛海尔空调器有限总公司 A kind of safety protection control method and device of heater and heater

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