Heat dissipation method and heat dissipation system of automobile lamp and automobile

Abstract

The application relates to the field of automobile lighting technology, in particular to a heat dissipation method and system of an automobile lamp and an automobile thereof, which comprises a collection module, a temperature signal of the lamp is acquired, the acquired temperature signal is transmitted to a lamp driving control module, the temperature signal is used by the lamp driving control module to acquire the temperature of the current lamp, the temperatures of all the lamps are compared, the highest temperature is acquired, and the residual temperature heating, or the normal cooling, or the normal cooling and one-key cooling are started according to the highest temperature; when the residual temperature heating, or the normal cooling, or the normal cooling and one-key cooling are started by the lamp driving control module, the lamp driving control module controls a heat dissipation module; the lamp driving control module receives the signal transmitted by the lamp driving control module; according to the signal, a whole vehicle control module generates an air conditioner starting signal, and the vehicle body air conditioner is controlled to be opened. The heat dissipation method of the automobile lamp provided by the application can timely reduce the environmental temperature of the lamp and ensure the stability of the lamp work while ensuring the performance.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lighting, and in particular to a heat dissipation method and heat dissipation system for automobile lamps and a vehicle thereof. Background Art

[0002] With the continuous improvement of the national economy, people are pursuing the convenience and comfort of transportation, and the number of cars in China is also increasing. Safety is often an important indicator of automobile manufacturing, and headlights, as an important part of automobile safety, have also attracted much attention.

[0003] To ensure the safety and stability of headlights during operation, the headlight manufacturing industry often strictly controls the testing process, which includes high and low temperature tests. This is especially true for headlight electronic modules, which are more significantly affected by high and low temperature environments. Regarding high and low temperature tests for headlights, not only major automobile manufacturers, but also every headlight manufacturing company has a complete set of testing processes and requirements. Generally speaking, the test requirement for the lamp module is an ambient temperature of -40℃ to 105℃. Within this temperature range, all working conditions of the lamp must operate normally. However, in the special environment of some high-temperature areas, the car is in a state of continuous operation, resulting in excessively high vehicle temperatures. Since the headlights themselves are also light-emitting and heat-generating elements, the operating temperature of the headlights may exceed 105℃. In such an environment with excessively high temperatures, the overall stability and safety of the headlights will be seriously affected.

[0004] High temperatures severely impact the performance of automotive electronic components. To ensure stable lamp operation, electronic modules often employ over-temperature dimming to reduce the LED output current, lowering the overall lamp power and the temperature of the integrated circuits, thereby reducing heat release and maintaining component stability. While this approach largely maintains normal lamp operation, even over-temperature dimming has its limits. Excessive changes in lamp brightness can also compromise performance. Furthermore, in certain environments, even dimming cannot maintain stable operation. Therefore, there is an urgent need to develop a heat dissipation method for automotive lamps that can maintain stable operation by collecting and adjusting the ambient temperature of the lamp in real time while maintaining performance. Summary of the Invention

[0005] The technical problem solved by the present application is: in order to solve the problem that the over-temperature drop flow dimming method used in the prior art affects the brightness performance of the lamp, and in special environment (the internal temperature of the lamp is too high), the overall stability of the car lamp cannot be guaranteed when the car lamp works, the lamp flickers or extinguishes, and safety accidents are prone to occur, the present application provides a heat dissipation method for automobile lamp, which can guarantee the performance, collect the environmental temperature of the lamp in real time, and adjust the environmental temperature of the lamp according to the temperature of the lamp, so as to guarantee the overall stability of the car lamp when the car lamp works, and improve the use safety.

[0006] The technical solution adopted by the present application to solve the technical problem is: a heat dissipation method for automobile lamp, a temperature sensor is arranged on each lamp, the number of lamps is the same as the number of temperature sensors, wherein the heat dissipation method comprises:

[0007] Step S1, initializing the heat dissipation method, opening the first electromagnetic valve channel and the first fan;

[0008] Step S2, collecting the temperature signal of the lamp in real time through the temperature sensor;

[0009] Step S3, obtaining the temperature of the current lamp according to the temperature signal, comparing the temperatures of all lamps, and obtaining the highest temperature;

[0010] Step S4, comparing the highest temperature with the first temperature threshold;

[0011] If the highest temperature is less than the first temperature threshold, it is judged whether the lamp excess heat is heated;

[0012] If the highest temperature is greater than the first temperature threshold, the lamp is cooled normally;

[0013] Step S5, comparing the highest temperature with the second temperature threshold after the lamp is cooled normally;

[0014] If the highest temperature is less than the second temperature threshold, return to step S3;

[0015] If the highest temperature is greater than the second temperature threshold, it is judged whether the car air conditioner is turned on;

[0016] If the car air conditioner is not turned on, the lamp is cooled normally;

[0017] If the car air conditioner is turned on, the lamp is cooled by one key.

[0018] Further, specifically, in step S4, whether the lamp excess heat is heated includes the following steps:

[0019] Step S411, determining whether the vehicle light is working properly;

[0020] If the vehicle light does not work properly, return to step S2;

[0021] If the vehicle light is working properly, a vehicle body end signal is sent;

[0022] Step S412, receiving the vehicle body end signal;

[0023] Step S413, determining whether the vehicle body end signal turns on residual heat heating;

[0024] If the vehicle body end signal does not start residual heat heating, then return to step S412;

[0025] If the vehicle body end signal turns on the residual heat heating, the second solenoid valve channel and the second fan are turned on.

[0026] Further, specifically, in step S4, the normal cooling of the vehicle lamp includes the following steps:

[0027] Step S421, opening the third solenoid valve channel;

[0028] Step S422, turning on the third fan;

[0029] Step S423, adjusting the duty cycle of the headlight in real time to control the brightness of the headlight;

[0030] Step S424: adjusting the power of the third fan to control the rotation speed of the third fan.

[0031] Further, specifically, in step S5,

[0032] If the vehicle body air conditioner is not turned on, return to step S423.

[0033] Further, specifically, in step S5, if the vehicle body air conditioner is turned on, cooling the vehicle lights with one button includes the following steps:

[0034] Determine whether to turn on one-button cooling;

[0035] If one-button cooling is not enabled, return to step S3;

[0036] If one-button cooling is turned on, the fourth solenoid valve channel and the fourth fan are turned on.

[0037] A heat dissipation system used in the heat dissipation method for automobile lamps as described above, the heat dissipation system comprising:

[0038] An acquisition module, connected to the temperature sensor, to acquire a temperature signal of the vehicle lamp;

[0039] A car lamp driving control module is connected with the acquisition module, the acquisition module transmits the acquired temperature signal to the car lamp driving control module, the car lamp driving control module acquires the temperature of the current car lamp according to the temperature signal, compares the temperature of all car lamps, and acquires the highest temperature, and according to the highest temperature, the car lamp driving control module starts the excess temperature heating, or the normal cooling, or the normal cooling and one-key cooling;

[0040] A car lamp domain control module is connected with the car lamp driving control module and receives the signal transmitted by the car lamp driving control module;

[0041] A heat dissipation module is connected with the car lamp driving control module, and when the car lamp driving control module starts the excess temperature heating, or the normal cooling, or the normal cooling and one-key cooling, the car lamp driving control module controls the heat dissipation module;

[0042] A whole vehicle control module is connected with the car lamp domain control module, and the car lamp domain control module controls the whole vehicle control module to generate an air conditioner starting signal according to the signal of the car lamp driving control module;

[0043] A vehicle body air conditioner is connected with the whole vehicle control module and receives the air conditioner starting signal transmitted by the whole vehicle control module, and the vehicle body air conditioner is opened.

[0044] Further, specifically, the number of the acquisition modules is the same as the number of the car lamps, and the number of the car lamp driving control modules is the same as the number of the car lamps.

[0045] Further, specifically, the car lamp driving control module comprises a master control unit, a CAN unit, an SPI unit and an FTM unit;

[0046] The CAN unit, the SPI unit and the FTM unit are connected with the master control unit;

[0047] The master control unit acquires the temperature of the current car lamp according to the temperature signal, compares the temperature of all car lamps, and acquires the highest temperature;

[0048] The CAN unit transmits the acquired highest temperature to the car lamp domain control module through the CAN bus;

[0049] Alternatively, the SPI unit transmits the acquired highest temperature to the car lamp domain control module through the SPI communication line;

[0050] The master control unit sends a dimming instruction to the FTM unit according to the temperature signal, and the FTM unit adjusts the duty cycle of the car lamp to control the brightness of the car lamp.

[0051] Further, specifically, the heat dissipation module includes a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, a first motor, a second motor, a third motor, a fourth motor, a first fan, a second fan, a third fan and a fourth fan;

[0052] The first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first motor, the second motor, the third motor and the fourth motor are all connected to a main control unit;

[0053] The first motor is connected to the first fan, the second electrode is connected to the second fan, the third motor is connected to the third fan, and the fourth motor is connected to the fourth fan.

[0054] A car comprises: a plurality of headlights, each headlight being provided with a corresponding temperature sensor; and the heat dissipation system for the car headlights as described above.

[0055] The beneficial effects of the present invention are: the heat dissipation method provided by the present invention integrates temperature signal acquisition, temperature signal processing, and temperature signal feedback while ensuring performance, and performs heat dissipation treatment on the entire headlight module. It also adjusts the ambient temperature of the lamp according to the temperature of the headlight, and achieves timely heat dissipation by utilizing the wind energy generated when the car is moving. By linking with the car body air conditioning, emergency one-button cooling is achieved, and residual heat heating is achieved by generating heat energy when the lamp is working. The present invention makes full use of energy, reduces energy consumption, and ensures the timeliness of the heat dissipation method, thereby ensuring the overall stability of the headlight, the lamp can work normally, improves the safety of use, and avoids the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The present invention will be further described below with reference to the accompanying drawings and examples.

[0057] Figure 1 This is a flow chart of the heat dissipation method according to embodiment 1 of the present invention.

[0058] Figure 2 It is a schematic structural diagram of the heat dissipation module of embodiment 1 of the present invention.

[0059] Figure 3 This is the over-temperature flow reduction curve of the vehicle lamp in Example 1 of the present invention.

[0060] Figure 4 It is a structural diagram of the heat dissipation system of embodiment 2 of the present invention.

[0061] Figure 5 2 is a schematic diagram of the vehicle light drive control structure according to embodiment 2 of the present invention.

[0062] In the figure, 2 is the temperature sensor; 3 is the acquisition module; 4 is the headlight drive control module; 5 is the headlight domain control module; 6 is the heat dissipation module; 7 is the vehicle control module; 8 is the body air conditioner; 41 is the main control unit; 42 is the CAN unit; 43 is the SPI unit; 44 is the FTM unit. DETAILED DESCRIPTION

[0063] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0065] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0066] Example 1

[0067] like Figures 1-3 FIG. 1 is a first embodiment of the present invention, which is a heat dissipation method for automobile lamps. Each lamp is provided with a corresponding temperature sensor 2. The number of lamps is the same as the number of temperature sensors 2. The heat dissipation method includes:

[0068] Step S1, initializing the heat dissipation method, turning on the first solenoid valve channel and the first fan;

[0069] Step S2, collecting the temperature signal of the vehicle lamp in real time through the temperature sensor 2;

[0070] Step S3, obtaining the temperature of the current car light according to the temperature signal, comparing the temperatures of all car lights, and obtaining the highest temperature;

[0071] Step S4, comparing the highest temperature with the first temperature threshold, preferably 105 DEG C, but not limited to; if the highest temperature is less than the first temperature threshold, determining whether to heat the car light; if the highest temperature is greater than the first temperature threshold, the car light is cooled normally;

[0072] Step S5, after the car light is cooled normally, comparing the highest temperature with the second temperature threshold, preferably 120 DEG C according to the car light over-temperature flow curve, but not limited to; if the highest temperature is less than the second temperature threshold, returning to step S3; if the highest temperature is greater than the second temperature threshold, determining whether the car body air conditioner 8 is opened; if the car body air conditioner 8 is not opened, continuing to cool the car light normally; if the car body air conditioner 8 is opened, the car light is cooled by one key.

[0073] In the embodiment of the present application, step S4 determining whether to heat the car light includes the following steps:

[0074] Step S411, determining whether the car light is working normally; if the car light is not working normally, returning to step S2; if the car light is working normally, sending the car body end signal;

[0075] Step S412, receiving the car body end signal;

[0076] Step S413, determining whether the car body end signal is opened to heat the residual temperature; if the car body end signal is not opened to heat the residual temperature, returning to step S412; if the car body end signal is opened to heat the residual temperature, opening the second electromagnetic valve channel and the second fan.

[0077] Specifically, the heat dissipation method of the present application, in the initialization, the channel of the first electromagnetic valve and the first fan are opened, after the residual temperature heating is opened, the channel of the second electromagnetic valve and the second fan are opened, the external air enters from the first fan, and then flows to the second electromagnetic valve channel through the first electromagnetic valve channel, and is discharged to the automobile interior through the second fan. The external wind energy is extracted through the channel of the first electromagnetic valve and the first fan, and the wind energy is heated by the heat energy generated during the operation of the lamp, so as to heat the residual temperature of the lamp. The higher the temperature of the lamp during operation, the more obvious the heat dissipation effect of the lamp. Then, the air discharged from the automobile interior outlet is discharged to the automobile interior through the channel of the second electromagnetic valve and the second fan. In the embodiment of the present application, the user can also determine whether to continue to open the residual temperature heating function according to whether the air discharged from the automobile interior outlet meets the heating.

[0078] In the embodiment of the present application, step S4 cooling the car light normally includes the following steps:

[0079] Step S421, opening the third electromagnetic valve channel;

[0080] Step S422, turning on the third fan;

[0081] Step S423, adjusting the duty cycle of the headlights in real time to control the brightness of the headlights;

[0082] Step S424: adjust the power of the third fan to control the speed of the third fan.

[0083] Specifically, when the maximum temperature exceeds 105°C, the third solenoid valve channel and the third fan are opened. External air enters through the first fan and flows through the first solenoid valve channel. The air then flows to the third solenoid valve channel and is exhausted to the outside of the vehicle through the third fan. Wind energy is extracted through the first solenoid valve channel and the first fan to dissipate heat from the lamp. This energy is then released to the outside of the vehicle through the third solenoid valve channel and the third fan, achieving general cooling. Furthermore, the system adjusts the duty cycle of the lamp to maintain performance while controlling the brightness of the lamp through PWM. Furthermore, the power and speed of the third fan are adjusted to accelerate air flow within the lamp, improving heat dissipation and achieving rapid cooling. By utilizing wind energy generated by the vehicle's motion, the speed of the third fan is controlled to accelerate wind energy entering the lamp. While maintaining performance, the brightness of the lamp is simultaneously controlled through PWM, achieving timely general cooling. Furthermore, this system fully utilizes wind energy generated during motion, effectively utilizing energy and reducing energy consumption. It also eliminates the need for external equipment, achieving general heat dissipation and cooling the lamp, saving costs.

[0084] In this embodiment of the present invention, in step S5, if the vehicle body air conditioner 8 is not turned on, the process returns to step S423 and continues to cool the lights normally. If the vehicle body air conditioner 8 is turned on, the lights are cooled using one-touch operation. This one-touch operation includes the following steps: determining whether one-touch cooling is enabled; if not, returning to step S3; if enabled, activating the fourth solenoid valve channel and the fourth fan.

[0085] Specifically, when the maximum temperature exceeds 120°C, the lights can be cooled with one-touch cooling. First, outside air enters from the first fan and passes through the first solenoid valve channel. The external wind energy then flows to the third solenoid valve channel. If the vehicle body air conditioner (8) is on, the fourth solenoid valve channel and the fourth fan are activated, drawing some air from the air conditioner (8) outlet. This air then flows through the fourth solenoid valve channel and the fourth fan, and then flows to the third solenoid valve channel. The external wind energy and some of the air from the air conditioner (8) outlet dissipate heat from the lights before being released to the exterior of the vehicle through the third solenoid valve channel and the third fan. By interlocking with the vehicle body air conditioner, some of the wind energy extracted from the air conditioner (8) outlet is used to cool the lights, achieving emergency one-touch cooling to maintain stable lighting operation. Furthermore, this system fully utilizes wind energy generated by both exercise and the air conditioner, effectively reducing energy consumption. Without the need for external equipment, this one-touch cooling system achieves rapid, emergency cooling of the lights at a low cost.

[0086] Example 2

[0087] Based on the same inventive concept as the heat dissipation method of a car lamp in the above embodiment, Figure 4 As shown, it is a second embodiment of the present invention, a heat dissipation system used in the heat dissipation method of the automobile headlight as described above, comprising: an acquisition module 3, connected to the temperature sensor 2, to obtain the temperature signal of the headlight; a headlight drive control module 4, connected to the acquisition module 3, the acquisition module 3 transmits the obtained temperature signal to the headlight drive control module 4, the headlight drive control module 4 obtains the current headlight temperature according to the temperature signal, compares the temperatures of all headlights, and obtains the highest temperature, and according to the highest temperature, the headlight drive control module 4 turns on residual heat heating, or ordinary cooling, or ordinary cooling or one-button cooling; a headlight domain control module 5, connected to the vehicle The light drive control module 4 is connected to receive the signal transmitted by the vehicle light drive control module 4; the heat dissipation module 6 is connected to the vehicle light drive control module 4, and when the vehicle light drive control module 4 turns on residual heat heating, or normal cooling, or normal cooling and one-button cooling, the vehicle light drive control module 4 controls the heat dissipation module 6; the whole vehicle control module 7 is connected to the vehicle light domain control module 5, and the vehicle light domain control module 5 controls the whole vehicle control module 7 to generate an air conditioning start signal according to the signal of the vehicle light drive control module 4; the body air conditioner 8 is connected to the whole vehicle control module 7, and receives the air conditioning start signal transmitted by the whole vehicle control module 7, and the body air conditioner 8 is turned on.

[0088] In the embodiment of the present invention, the number of the acquisition modules 3 and the number of the headlight driving control modules 4 is the same as the number of the headlights.

[0089] In the embodiment of the present invention, Figure 5As shown, the headlight drive control module 4 includes a main control unit 41, a CAN unit 42, an SPI unit 43 and an FTM unit 44; the CAN unit 42, the SPI unit 43 and the FTM unit 44 are all connected to the main control unit 41; the main control unit 41 obtains the temperature of the current headlight according to the temperature signal, and the main control unit 41 compares the temperatures of all the headlights and obtains the highest temperature; the CAN unit 42 transmits the obtained highest temperature to the headlight domain control module 5 through the CAN bus; or, the SPI unit 43 transmits the obtained highest temperature to the headlight domain control module 5 through the SPI communication line; the main control unit 41 sends a dimming instruction to the FTM unit 44 according to the temperature signal, and the FTM unit 44 adjusts the duty cycle of the headlight. The FTM unit 44 is connected to the headlight to control the brightness of the headlight.

[0090] In some embodiments of the present invention, when the main control unit 41 sends a warning instruction based on the temperature, specifically, the main control unit will send a warning instruction only when the temperature signal is greater than 120°C. The headlight domain control module 5 receives the warning instruction and issues a warning. The user can decide whether to continue to perform normal cooling or perform one-key cooling according to needs. The user controls the headlight domain control module 5 to control the vehicle control module 7 to generate an air-conditioning start signal, thereby turning on the vehicle body air conditioner 8.

[0091] In the embodiment of the present invention, the heat dissipation module 6 includes a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, a first motor, a second motor, a third motor, a fourth motor, a first fan, a second fan, a third fan and a fourth fan;

[0092] The first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first motor, the second motor, the third motor and the fourth motor are all connected to the main control unit 41. The main control unit 41 sends a control signal according to whether to turn on residual heat heating, or normal cooling, or normal cooling and one-button cooling to control each solenoid valve and motor; the first motor is connected to the first fan to control the start and speed of the first fan, the second motor is connected to the second fan to control the start and speed of the second fan, the third motor is connected to the third fan to control the start and speed of the third fan, and the fourth motor is connected to the fourth fan to control the start and speed of the fourth fan.

[0093] In the embodiment of the present invention, the channel of each solenoid valve is also connected to the copper tube of the lamp radiator for the circulation and discharge of external wind energy and air conditioning wind energy.

[0094] The foregoing Figure 1The various variations and specific examples of the heat dissipation method for an automobile lamp in Example 1 are also applicable to the heat dissipation system for an automobile lamp in this embodiment. Through the above detailed description of the heat dissipation method for an automobile lamp, those skilled in the art can clearly understand the implementation method of the heat dissipation system for an automobile lamp in this embodiment. Therefore, for the sake of brevity of the specification, it will not be described in detail here.

[0095] Example 3

[0096] A car comprises: a plurality of headlights, each headlight being provided with a corresponding temperature sensor 2; and the heat dissipation system for the car headlights as described above.

[0097] In some embodiments of the present invention, the vehicle lights may be low beam lights, high beam lights, daytime running lights, turn signals, and corner lights, but are not limited thereto.

[0098] The heat dissipation method provided by the present invention integrates temperature signal acquisition, temperature signal processing, and temperature signal feedback while ensuring performance, and performs heat dissipation treatment on the entire headlight module. It also selects a cooling mode according to the temperature of the headlight, and timely heat dissipation is achieved by utilizing the wind energy generated when the car is moving. By linkage with the vehicle body air conditioner 8, emergency one-button cooling is achieved, and residual heat heating is achieved by generating heat energy when the lamp is working. The present invention makes full use of energy, reduces energy consumption, and ensures the timeliness of the heat dissipation method, thereby ensuring the overall stability of the headlight when working, and the lamp can work normally, improving the safety of use, and avoiding the occurrence of safety accidents.

[0099] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A heat dissipation method for automobile lamps, characterized in that: A temperature sensor (2) is correspondingly provided on each headlight, and the number of the headlights is the same as the number of the temperature sensors (2), wherein the heat dissipation method includes: Step S1, initializing the heat dissipation method, turning on the first solenoid valve channel and the first fan; Step S2, collecting the temperature signal of the vehicle lamp in real time through the temperature sensor (2); Step S3, obtaining the current temperature of the headlight according to the temperature signal, comparing the temperatures of all the headlights, and obtaining the highest temperature; Step S4, comparing the maximum temperature with a first temperature threshold; If the maximum temperature is less than the first temperature threshold, determining whether to provide residual heat heating for the headlight; extracting external wind energy through the passage of the first solenoid valve and the first fan, and heating the wind energy with heat energy generated when the headlight is working, thereby achieving residual heat heating for the headlight; If the maximum temperature is greater than the first temperature threshold, the headlight is cooled normally; external wind energy is extracted through the channel of the first solenoid valve and the first fan to dissipate heat from the headlight, and then released to the outside of the vehicle through the channel of the third solenoid valve and the third fan to achieve normal cooling; Step S5, after cooling the headlights normally, comparing the maximum temperature with a second temperature threshold; If the maximum temperature is lower than the second temperature threshold, return to step S3; If the maximum temperature is greater than the second temperature threshold, determining whether the vehicle body air conditioner (8) is turned on; If the vehicle body air conditioner (8) is not turned on, the vehicle lights are cooled normally; If the vehicle body air conditioner (8) is turned on, the headlights are cooled with one button; if the vehicle body air conditioner (8) is turned on, after the fourth solenoid valve channel and the fourth fan are turned on, part of the air from the vehicle body air conditioner (8) outlet is extracted through the fourth solenoid valve channel and the fourth fan, and part of the air from the vehicle body air conditioner (8) outlet passes through the fourth solenoid valve channel and the fourth fan, and part of the air from the vehicle body air conditioner (8) outlet also flows to the third solenoid valve channel, and the external wind energy and part of the wind energy from the vehicle body air conditioner (8) outlet dissipate heat for the headlights, and then are released to the outside of the car through the third solenoid valve channel and the third fan; by linkage with the vehicle body air conditioner (8), part of the wind energy from the vehicle body air conditioner (8) outlet is extracted and used to cool the headlights, thereby achieving one-button cooling; Furthermore, the first temperature threshold is less than the second temperature threshold.

2. The heat dissipation method for automobile lamps according to claim 1, characterized in that: In step S4, determining whether to provide heating for the residual heat of the headlights includes the following steps: Step S411, determining whether the vehicle light is working properly; If the vehicle light does not work properly, return to step S2; If the vehicle light is working properly, a vehicle body end signal is sent; Step S412, receiving the vehicle body end signal; Step S413, determining whether the vehicle body end signal turns on residual heat heating; If the vehicle body end signal does not start residual heat heating, then return to step S412; If the vehicle body end signal turns on the residual heat heating, the second solenoid valve channel and the second fan are turned on; after the external air enters from the first fan and passes through the first solenoid valve channel, the external gas flows to the second solenoid valve channel and is discharged into the car interior through the second fan.

3. The heat dissipation method for automobile lamps according to claim 1, characterized in that: In step S4, the normal cooling of the vehicle lamp includes the following steps: Step S421, opening the third solenoid valve channel; Step S422, turning on the third fan; Step S423, adjusting the duty cycle of the headlight in real time to control the brightness of the headlight; Step S424: adjusting the power of the third fan to control the rotation speed of the third fan.

4. The heat dissipation method for automobile lamps according to claim 3, characterized in that: In step S5, if the vehicle body air conditioner (8) is not turned on, the process returns to step S423.

5. The heat dissipation method for automobile lamps according to claim 1, characterized in that: In step S5, if the vehicle body air conditioner (8) is turned on, cooling the vehicle lights with one key includes the following steps: Determine whether to enable one-button cooling; If one-button cooling is not enabled, return to step S3; If one-button cooling is turned on, the fourth solenoid valve channel and the fourth fan are turned on.

6. A heat dissipation system used in the heat dissipation method for an automobile lamp according to any one of claims 1 to 5, characterized in that: The heat dissipation system comprises: An acquisition module (3) is connected to the temperature sensor (2) to obtain a temperature signal of the vehicle lamp; A headlight drive control module (4) is connected to the acquisition module (3), the acquisition module (3) transmits the acquired temperature signal to the headlight drive control module (4), the headlight drive control module (4) acquires the current temperature of the headlight according to the temperature signal, compares the temperatures of all the headlights, and acquires the highest temperature, and according to the highest temperature, the headlight drive control module (4) activates residual heat heating, or normal cooling, or normal cooling and one-button cooling; A headlight domain control module (5) is connected to the headlight drive control module (4) and receives a signal transmitted by the headlight drive control module (4); A heat dissipation module (6) is connected to the headlight drive control module (4), and when the headlight drive control module (4) turns on residual heat heating, or normal cooling, or normal cooling and one-button cooling, the headlight drive control module (4) controls the heat dissipation module (6); A vehicle control module (7) is connected to the vehicle light domain control module (5), and the vehicle light domain control module (5) controls the vehicle control module (7) to generate an air-conditioning start signal according to a signal from the vehicle light drive control module (4); The vehicle body air conditioner (8) is connected to the vehicle control module (7) and receives an air conditioner start signal transmitted by the vehicle control module (7), and the vehicle body air conditioner (8) is turned on.

7. The heat dissipation system for automobile lamps according to claim 6, characterized in that: The number of the acquisition modules (3) and the number of the headlight drive control modules (4) are the same as the number of the headlights.

8. The heat dissipation system for automobile lamps according to claim 6, characterized in that: The vehicle light drive control module (4) comprises a main control unit (41), a CAN unit (42), an SPI unit (43) and an FTM unit (44); The CAN unit (42), the SPI unit (43) and the FTM unit (44) are all connected to the main control unit (41); The main control unit (41) obtains the current temperature of the headlight according to the temperature signal, and the main control unit (41) compares the temperatures of all the headlights and obtains the highest temperature; The CAN unit (42) transmits the acquired maximum temperature to the vehicle light domain control module (5) via a CAN bus; Alternatively, the SPI unit (43) transmits the acquired maximum temperature to the vehicle light domain control module (5) via an SPI communication line; The main control unit (41) sends a dimming instruction to the FTM unit (44) according to the temperature signal, and the FTM unit (44) adjusts the duty cycle of the vehicle light to control the brightness of the vehicle light.

9. The heat dissipation system for automobile lamps according to claim 8, characterized in that: The heat dissipation module (6) comprises a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, a first motor, a second motor, a third motor, a fourth motor, a first fan, a second fan, a third fan and a fourth fan; The first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first motor, the second motor, the third motor and the fourth motor are all connected to a main control unit (41); The first motor is connected to the first fan, the second motor is connected to the second fan, the third motor is connected to the third fan, and the fourth motor is connected to the fourth fan.

10. An automobile, characterized in that: include: A plurality of headlights, each headlight being provided with a corresponding temperature sensor (2); And a heat dissipation system for an automobile lamp as described in any one of claims 7 to 9.

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