Disclosure of utility model
Based on the problems, the utility model provides a driving circuit of a vehicle indicator lamp, which is used for reducing the energy consumption of the whole vehicle in a non-working state under the condition that a backlight indicator lamp and an interior atmosphere lamp are synchronous.
The embodiment of the utility model discloses the following technical scheme:
the utility model provides a vehicle indicator light driving circuit, which comprises a vehicle power supply module and a backlight indicator light driving module which are connected with each other, wherein the vehicle power supply module comprises an input power supply, a first battery and a voltage transformation assembly;
The first battery is connected with a first input end of the voltage transformation assembly, the input power supply is connected with a second input end of the voltage transformation assembly, and a first output end of the voltage transformation assembly is connected with the backlight indicator lamp driving module;
The voltage transformation component is used for carrying out voltage transformation based on the voltage of the first input end and the power supply of the second input end, and providing the transformed voltage to the backlight indicator driving module through the first output end so as to supply power to the backlight indicator driving module through the transformed voltage;
The backlight indicator lamp driving module is used for driving the backlight indicator lamp to work;
The first battery is also connected with an atmosphere lamp on the vehicle and is used for supplying power to the atmosphere lamp.
Optionally, the backlight indicator driving module further includes a first switching tube, a first diode, a second switching tube and a first resistor;
The first end and the second end of the first resistor are respectively connected with the first output end of the voltage transformation component and the cathode of the first diode;
The positive electrode and the negative electrode of the backlight indicator lamp are respectively connected with the first output end of the voltage transformation component and the collector electrode of the second switching tube, the emitter electrode of the second switching tube is grounded, and the base electrode of the second switching tube is connected with the second end of the first resistor;
The collector of the first switching tube is connected with the second end of the first resistor, the emitter of the first switching tube is grounded, and the base of the first switching tube is used for receiving a first input signal.
Optionally, the backlight indicator driving module further comprises a second resistor and a third resistor;
The second resistor is connected between the base electrode and the emitter electrode of the first switch tube, the base electrode of the first switching tube receives the first input signal through the third resistor.
Optionally, the circuit further comprises a highlight indicator lamp driving module, wherein the highlight indicator lamp driving module comprises a highlight power supply module, a highlight indicator lamp and a third switch tube;
The high-brightness power supply module is connected with the positive electrode of the high-brightness indicating lamp, the negative electrode of the high-brightness indicating lamp is connected with the collector electrode of the third switching tube, the emitter electrode of the third switching tube is grounded, and the base electrode of the third switching tube is used for receiving a second input signal.
Optionally, the highlight indicator lamp driving module further comprises a fourth resistor and a fifth resistor;
The base electrode of the third switching tube is connected with the emitter electrode of the third switching tube, and the base electrode of the third switching tube receives the second input signal through the fifth resistor.
Optionally, the high-brightness power supply module comprises a fourth switching tube, a sixth resistor, a seventh resistor, an eighth resistor, a second battery and a high-brightness power supply;
the first end of the sixth resistor is used for receiving a third input signal, and the second end of the sixth resistor is connected with the first end of the eighth resistor;
The second end of the eighth resistor is connected with the emitter of the fourth switching tube and grounded, the second end of the eighth resistor is connected with the high-brightness power supply, and the high-brightness power supply is connected with the positive electrode of the high-brightness indicating lamp;
The second end of the sixth resistor is connected with the base electrode of the fourth switching tube, the collector electrode of the fourth switching tube is connected with the second end of the seventh resistor, and the first end of the seventh resistor is connected with the second battery.
Optionally, the second battery is used for supplying power to the high-brightness power supply.
Optionally, the first input signal and the second input signal are homologous signals.
Optionally, the voltage value of the highlight power supply is determined by a third input signal of the highlight power supply module.
Optionally, the vehicle power module further includes a second diode, a ninth resistor, and a tenth resistor;
The input power supply is connected with the positive electrode of the second diode, the negative electrode of the second diode is connected with the first end of the ninth resistor, the second end of the ninth resistor is connected with the second input end of the voltage transformation assembly, the negative electrode of the second diode is connected with the first end of the tenth resistor, and the second end of the tenth resistor is grounded.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model provides a vehicle indicator lamp driving circuit which comprises a vehicle power supply module and a backlight indicator lamp driving module which are connected with each other, wherein the vehicle power supply module comprises an input power supply, a first battery and a voltage transformation assembly, and the backlight indicator lamp driving module comprises a backlight indicator lamp. The first battery is connected with the first input end of the voltage transformation assembly, the input power supply is connected with the second input end of the voltage transformation assembly, and the first output end of the voltage transformation assembly is connected with the backlight indicator driving module. The voltage transformation component is used for carrying out voltage transformation based on the voltage of the first input end and the power supply of the second input end, and supplying the transformed voltage to the backlight indicator driving module through the first output end so as to supply power to the backlight indicator driving module through the transformed voltage. The first battery is also connected with an atmosphere lamp on the vehicle and is used for supplying power to the atmosphere lamp. The input power source and the first battery for atmosphere lamp power supply are as two input ends of vary voltage subassembly, then carry out voltage conversion through vary voltage subassembly to the voltage of input and power, can be through the voltage after the conversion for backlight indicator drive module power supply, the synchronization of backlight indicator and atmosphere lamp has been realized, and the power of backlight indicator is supplied by the battery directly, do not need the gear controller to backlight indicator power supply, make the state of gear controller under the sleep state, backlight indicator's state can be decided by the battery as vehicle power, do not need the gear controller to participate in, thereby the energy consumption of vehicle under non-operating condition has been reduced.
Detailed Description
In order to make the present utility model better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As described above, the high light indicator means that the indicator of the current gear is on, and the backlight indicator means that the indicator of the non-current gear is on. And when the gear is in the current gear, the highlight indicator lights are on, the backlight indicator lights are off, when the gear is not in the current gear, the backlight indicator lights are on, and the highlight indicator lights are off. In order to facilitate understanding of the gear indicator, fig. 1 may be referred to as a structural schematic diagram of a gear indicator panel, where a highlighting indicator and a backlight indicator may be displayed through the indicator panel, 2 in fig. 1 is the indicator panel, 3 is a light-blocking plate, 4 is a base, 5, 6, and 7 are light guide strips, 8 is an LED light board, 9 is a connector, and 10 is a housing. The high-brightness indication state takes the current gear as input, a high-brightness indication lamp in the driving circuit works, the high-brightness indication state and the current gear are considered in the backlight indication state, and then the backlight indication lamp in the driving circuit works.
However, the backlight indicator lamp as a part of the intelligent car cabin cannot be synchronized with the interior atmosphere lamp, and the experience of the user is affected. By adopting the existing driving circuit, the sleep wakeup of the gear controller and the atmosphere lamp is required to be ensured to be consistent, and the energy consumption of the vehicle in a non-working state can be seriously increased.
Therefore, how to reduce the energy consumption of the whole vehicle in a non-working state under the condition of realizing the synchronization of the backlight indicator lamp and the interior atmosphere lamp becomes a problem to be solved urgently.
In order to solve the above problems, the present utility model provides a vehicle indicator driving circuit, which comprises a vehicle power module and a backlight indicator driving module connected with each other, wherein the vehicle power module comprises an input power source, a first battery and a voltage transformation assembly, and the backlight indicator driving module comprises a backlight indicator. The first battery is connected with the first input end of the voltage transformation assembly, the input power supply is connected with the second input end of the voltage transformation assembly, and the first output end of the voltage transformation assembly is connected with the backlight indicator driving module. The voltage transformation component is used for carrying out voltage transformation based on the voltage of the first input end and the power supply of the second input end, and supplying the transformed voltage to the backlight indicator driving module through the first output end so as to supply power to the backlight indicator driving module through the transformed voltage. The first battery is also connected with an atmosphere lamp on the vehicle and is used for supplying power to the atmosphere lamp. The input power source and the first battery for atmosphere lamp power supply are as two input ends of vary voltage subassembly, then carry out voltage conversion through vary voltage subassembly to the voltage of input and power, can be through the voltage after the conversion for backlight indicator drive module power supply, the synchronization of backlight indicator and atmosphere lamp has been realized, and the power of backlight indicator is supplied by the battery directly, do not need the gear controller to backlight indicator power supply, make the state of gear controller under the sleep state, backlight indicator's state can be decided by the battery as vehicle power, do not need the gear controller to participate in, thereby the energy consumption of vehicle under non-operating condition has been reduced.
Referring to fig. 2, fig. 2 is a circuit diagram of a driving circuit of a vehicle indicator lamp, which includes a vehicle power module 1 and a backlight indicator lamp driving module 2 connected to each other, the vehicle power module includes an input power source 11, a first battery 12 and a voltage transformation assembly 13, and the backlight indicator lamp driving module 2 includes a backlight indicator lamp 21.
The first battery 12 is connected with a first input end of the voltage transformation assembly 13, the input power supply 11 is connected with a second input end of the voltage transformation assembly 13, and a first output end of the voltage transformation assembly 13 is connected with the backlight indicator lamp driving module 2.
The voltage transformation component 13 is configured to perform voltage transformation based on the voltage of the first input terminal and the power supply of the second input terminal, and provide the transformed voltage to the backlight driving module 2 through the first output terminal, so as to supply power to the backlight driving module 2 through the transformed voltage. As an example, the voltage converted by the voltage transformation assembly may be 5 volts.
The backlight driving module 2 is used for driving the backlight 21 to work.
The first battery 12 is also connected to an atmosphere lamp on the vehicle for powering the atmosphere lamp.
Referring to fig. 3, fig. 3 is a circuit diagram of a specific driving circuit of a vehicle indicator lamp, and the vehicle power module includes an input power source, namely, a backlight power source ILL1, a first battery VIN, a voltage transformation assembly U1, a second diode D2, a ninth resistor R9, a tenth resistor R10, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4.
In one possible implementation manner, the connection relationship of the vehicle power module may specifically be:
The backlight power source ILL1 is connected with the positive electrode of a second diode D2, the negative electrode of the second diode D2 is connected with the first end of a ninth resistor R9, the second end of the ninth resistor R9 is connected with the second pin 2 of the voltage transformation component U1, the negative electrode of the second diode D2 is connected with the first end of a tenth resistor R10, and the second end of the tenth resistor R10 is grounded.
The first battery VIN is connected with the second capacitor C2 and grounded, the first battery VIN is connected with the first capacitor C1 and grounded, the first battery VIN is further connected with the first pin 1 of the voltage transformation assembly U1, the fifth pin 5 of the voltage transformation assembly U1 is grounded, the third pin 3, the fourth pin 4, the seventh pin 7 and the eighth pin 8 of the voltage transformation assembly U1 are all grounded, the sixth pin 6 of the voltage transformation assembly U1 is connected with the third capacitor C3 and grounded, the sixth pin 6 of the voltage transformation assembly U1 is further connected with the fourth capacitor C4 and grounded, the sixth pin 6 of the voltage transformation assembly U1 is further used as an output end, and the converted voltage is output to the backlight indicator driving module.
The voltage output by the backlight power supply can control whether the second diode is conducted or not, so that the voltage transformation component is turned on or turned off. And the backlight power ILL1 is led into the vehicle power module through a wire harness, compared with the mode that the atmosphere lamp is used for controlling the gear indicator lamp in the related art, the mode that each backlight lamp is independently controlled according to the gear is also needed, and the wire harness cost of the whole vehicle is saved.
In a specific embodiment, referring to fig. 4, fig. 4 is a circuit diagram of another specific driving circuit of the vehicle indicator light, and the driving module of the backlight indicator light further includes a first switching tube Q1, a first diode D1, a second switching tube Q2, and a first resistor R1. The backlight indicator is represented in fig. 4 by LED 10.
The switching transistor may be a triode, which is a semiconductor device for controlling current. The function of the circuit is to amplify weak signals into electric signals with larger amplitude values, and the circuit is also used as a contactless switch, is one of semiconductor basic components, and has the function of current amplification. The triode is characterized in that two PN junctions which are very close to each other are manufactured on a semiconductor substrate, the whole semiconductor is divided into three parts by the two PN junctions, the middle part is a base region, the two side parts are an emitter region and a collector region, and PNP and NPN are arranged. The triode comprises three pins, namely a collector, a base and an emitter. For easy understanding, the switch transistor is hereinafter referred to as an NPN transistor.
In one possible implementation manner, the connection relationship of the backlight indicator lamp driving module may specifically be that the first end and the second end of the first resistor R1 are respectively connected to the first output end of the voltage transformation assembly and the cathode of the first diode D1, and the anode of the first diode D1 is grounded. The first output end of the voltage transformation component can be represented by a converted voltage, and as an example, the converted voltage is 5 v, and the converted voltage value is not particularly limited in the application.
The positive pole and the negative pole of backlight indicator LED10 are connected the first output end of vary voltage subassembly and the collecting electrode of second switch tube Q2 respectively, and the projecting pole of second switch tube Q2 is ground connection, and the second end of first resistance R1 is connected to the base of second switch tube Q2. In addition, the emitter of the second switching tube Q2 may be connected to the resistor R11 and then grounded, and as an example, the resistance value of R1 may be 10K, and the resistance value of R5 may be 1.3K.
The collector of the first switch tube Q1 is connected with the second end of the first resistor R1, the emitter of the first switch tube Q1 is grounded, and the base of the first switch tube Q1 is used for receiving a first input signal.
In addition, a second resistor R2 is further connected between the base and the emitter of the first switching tube Q1, and the base of the first switching tube Q1 receives the first input signal through a third resistor R3.
The first input signal is a driving signal input from the outside, and may be at a high level or a low level when the first input signal is a level signal. The first input signal may also be other signals, which are not limited in the embodiment of the present application.
In a specific embodiment, the highlight lamp driving module may refer to fig. 5, and fig. 5 is a circuit diagram of another specific vehicle lamp driving circuit, where the highlight lamp driving module includes a highlight power module IND, a highlight lamp LED13, and a third switching tube Q3.
In a possible implementation manner, the connection relationship of the highlight indicator lamp driving module may be specifically that the highlight power module IND is connected with the positive electrode of the highlight indicator lamp LED13, the negative electrode of the highlight indicator lamp LED13 is connected with the collector electrode of the third switch tube Q3, the emitter electrode of the third switch tube Q3 is grounded, and the base electrode of the third switch tube Q3 is used for receiving the second input signal.
In addition, a fourth resistor R4 is further connected between the base and the emitter of the third switching tube Q3, and the base of the third switching tube Q3 receives the second input signal through a fifth resistor R5.
The second input signal is a driving signal input from the outside, and may be at a high level or a low level when the second input signal is a level signal. The second input signal may also be other signals, which are not limited in the embodiment of the present application.
It should be noted that, the first input signal and the second input signal are homologous signals, so that the situation that the backlight indicator lamp and the high-brightness indicator lamp are on and off simultaneously due to mismatching of source signals is avoided.
When the first input signal and the second input signal are at high level, the third switching tube Q3 is turned on, the high-brightness indicator LED13 is turned on, the first switching tube Q1 is turned on, the input voltage of the backlight indicator driving module may be 5V, and the input voltage is grounded through the first resistor R1, the base level of the second switching tube Q2 is 0, which indicates that the second switching tube Q2 is turned off, and the backlight indicator LED10 is not turned on.
In a specific embodiment, referring to fig. 6, fig. 6 is a circuit diagram of another specific driving circuit of the vehicle indicator lamp, where the highlighting power module includes a fourth switching tube Q4, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second battery VIN2, and a highlighting power IND.
In one possible implementation manner, the connection relationship of the highlight power module may be specifically:
The first end of the sixth resistor R6 is configured to receive the third input signal, and the second end of the sixth resistor R6 is connected to the first end of the eighth resistor R8.
The second end of the eighth resistor R8 is connected with the emitter of the fourth switching tube Q4 and grounded, the second end of the eighth resistor R8 is connected with the highlight power supply IND, and the highlight power supply IND is connected with the anode of the highlight indicator lamp LED 13.
The second end of the sixth resistor R6 is connected with the base electrode of the fourth switching tube Q4, the collector electrode of the fourth switching tube Q4 is connected with the second end of the seventh resistor R7, and the first end of the seventh resistor R7 is connected with the second battery VIN 2.
The second battery VIN2 is configured to supply power to the highlight power supply IND, where a voltage value of the highlight power supply IND is determined by the third input signal, and the voltage value of the highlight power supply IND can determine brightness of the highlight indicator lamp. The third input signal may be a pulse width modulated signal input from the outside, and the voltage value of the highlight power IND may be determined by the duty ratio value of the pulse width modulated signal, unlike the first input signal and the second input signal.
Referring to fig. 7, fig. 7 is a schematic structural diagram of the level relationship between the indicator light and the input signal, and in the operating state of the vehicle, as an example, when the gear is in the R reverse gear, the backlight power source ILL1 may be 12V, at this time, the input voltages of the highlighting power source IND and the backlight indicator light driving module may be 5V, the first input signal and the second input signal are at high level, and as can be seen from the circuit diagrams in fig. 4 and fig. 5, the highlighting indicator light LED13 is on, and the backlight indicator light LED10 is off.
When the whole vehicle is in a working state and the gear is in a P parking gear, the backlight power source ILL1 can be 12V, at the moment, the input voltage of the high-brightness power source IND and the backlight indicator lamp driving module can be 5V, the first input signal and the second input signal are low-level, and according to the circuits in fig. 4 and 5, the high-brightness indicator lamp LED13 is turned off, and the backlight indicator lamp LED10 is turned on.
When the whole car is in a working state, the backlight power source ILL1 can be 12V, the input voltage of the backlight indicator lamp driving module can be 5V, the highlight power source IND can be 0V, the first input signal and the second input signal are high-level, and according to fig. 4 and 5, the highlight indicator lamp LED13 is turned off, and the backlight indicator lamp LED10 is turned off.
When the whole car is in a working state, the backlight power source ILL1 can be 12V, the input voltage of the backlight indicator lamp driving module can be 5V, the highlight power source IND can be 0V, the first input signal and the second input signal are low-level, and as can be seen from fig. 4 and 5, the highlight indicator lamp LED13 is turned off, and the backlight indicator lamp LED10 is turned on.
When the whole car is in a non-working state, the backlight power source ILL1 is 0V, the input voltage of the backlight indicator lamp driving module can be 0V, the highlight power source IND can be 5V at the moment, the first input signal and the second input signal are at high level, and according to the circuits in fig. 4 and 5, the highlight indicator lamp LED13 is on, and the backlight indicator lamp LED10 is off.
When the whole car is in a non-working state, the backlight power source ILL1 is 0V, the input voltage of the backlight indicator lamp driving module can be 0V, the highlight power source IND can be 5V at the moment, the first input signal and the second input signal are at low level, and according to the circuits shown in fig. 4 and 5, the highlight indicator lamp LED13 is turned off, and the backlight indicator lamp LED10 is turned off.
When the whole car is in a non-working state, the backlight power source ILL1 is 0V, the input voltage of the backlight indicator lamp driving module can be 0V, the highlight power source IND can be 0V at the moment, the first input signal and the second input signal are at high level, and according to the circuits shown in fig. 4 and 5, the highlight indicator lamp LED13 is turned off, and the backlight indicator lamp LED10 is turned off.
When the whole car is in a non-working state, the backlight power source ILL1 is 0V, the highlight power source IND can be 0V, the input voltage of the backlight indicator lamp driving module can be 0V, the first input signal and the second input signal are low-level, and according to the circuits shown in fig. 4 and 5, the highlight indicator lamp LED13 is turned off, and the backlight indicator lamp LED10 is turned off.
According to the level relation between the indicator lamp and the input signal, the backlight indicator lamp and the atmosphere lamp are synchronous, and the highlight indicator lamp is determined by the voltage of the highlight power supply.
The input power supply and the first battery for supplying power to the atmosphere lamp are used as two input ends of the voltage transformation assembly, the voltage transformation assembly is used for transforming the input voltage and the power supply, the transformed voltage is used for supplying power to the backlight indicator lamp driving module, synchronization of the backlight indicator lamp and the atmosphere lamp is achieved, the power supply of the backlight indicator lamp is directly supplied by the battery, the gear controller is not needed for supplying power to the backlight indicator lamp, the state of the backlight indicator lamp can be determined by the battery used as a vehicle power supply in a dormant state, participation of the gear controller is not needed, and therefore energy consumption of the vehicle in a non-working state is reduced.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.