Heat dissipation system and vehicle-mounted wireless charger

Abstract

The embodiment of the utility model provides a heat dissipation system and a vehicle-mounted wireless charger. The TEC module is provided with a refrigeration surface and a heat gathering surface which are deviated from each other; the refrigeration surface of the TEC module abuts against the coil magnetic isolation sheet so as to absorb heat on the coil magnetic isolation sheet, and the heat can flow to the heat gathering surface of the TEC module; the radiating fin is attached to the heat gathering surface of the TEC module, so that heat is conducted to the radiating fin; the fan is fixedly mounted on one side, far away from the TEC module, of the cooling fin, so that heat on the cooling fin is dissipated to the outside atmosphere; the NTC module is arranged in the coil magnetic isolation sheet and is used for acquiring the real-time temperature on the coil magnetic isolation sheet; and the MCU module is respectively connected to at least part of the fan, the NTC module and the TEC module, so that the MCU module can control the temperature parameter of the TEC module and the rotating speed of the fan according to the real-time temperature. According to the heat dissipation system, active heat dissipation is carried out on the coil magnetic isolation sheet through mutual cooperation of the TEC module and the fan, and then the charging efficiency of the vehicle-mounted wireless charger is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle charger technical field especially relates to a heat dissipation system and vehicle wireless charger. BACKGROUND

[0002] In recent years, more and more vehicles on the market begin to be equipped with vehicle wireless chargers for charging mobile phones, and with the increase of charging power, the heat generation of vehicle wireless chargers also increases.

[0003] At present, in order to better dissipate heat for the heat generating components (for example, charging coil) of vehicle wireless charger, a fan can be added on the traditional vehicle wireless charger, but the heat dissipation mode of simply adding a fan is not ideal for the heat dissipation effect of the traditional vehicle wireless charger, which will cause the traditional vehicle wireless charger to generate heat seriously during charging, and the excessively high temperature will also be transferred to the mobile phone to be charged, thereby causing the temperature of the mobile phone to be too high and reducing the charging efficiency of the traditional vehicle wireless charger. SUMMARY

[0004] The heat dissipation system and vehicle wireless charger provided by the utility model aim to solve at least one defect of the existing heat dissipation system and vehicle wireless charger.

[0005] In a first aspect, the utility model provides a kind of heat dissipation system.The heat dissipation system is applied to the vehicle wireless charger with coil magnetic separation sheet;The heat dissipation system includes:

[0006] TEC module;The TEC module has mutually facing away refrigeration face and heat collection face;

[0007] The refrigeration face of the TEC module is in abutment with the coil magnetic separation sheet, to absorb the heat on the coil magnetic separation sheet, and the heat can flow to the heat collection face of the TEC module;

[0008] Radiating fin;The radiating fin is attached on the heat collection face of the TEC module, to make the heat be conducted to the radiating fin;

[0009] Fan;The fan is fixedly installed on the side of the radiating fin away from the TEC module, to make the heat on the radiating fin be dissipated to the outside atmosphere;

[0010] NTC module;The NTC module is arranged inside the coil magnetic separation sheet to collect real-time temperature on the coil magnetic separation sheet;

[0011] MCU module;The MCU module is connected to at least part of the fan, the NTC module and the TEC module, so that the MCU module can control the temperature parameter of the TEC module and control the rotating speed of the fan according to the real-time temperature.

[0012] In some embodiments, the temperature parameter comprises:

[0013] a first temperature on the refrigeration surface and a second temperature on the heat collection surface;

[0014] a negative correlation between the first temperature and the second temperature, and a positive correlation between the second temperature and the fan speed.

[0015] In some embodiments, a current is passed through the TEC module in a preset direction to make the refrigeration surface absorb heat and force the heat to flow to the heat collection surface;

[0016] The flow direction of the heat can change following the change of the flow direction of the current;

[0017] By changing the flow direction of the current, the TEC module can realize refrigeration or heating on the same side.

[0018] In some embodiments, the MCU module has a preset temperature; the TEC module and the fan cooperate with each other to make the real-time temperature on the coil magnetic separation sheet reach the preset temperature.

[0019] In some embodiments, the MCU module has an ADC end and a PWM end, and the fan has a motor;

[0020] The NTC module is used to collect the real-time temperature on the coil magnetic separation sheet and form a corresponding analog signal;

[0021] The ADC end is connected with the NTC module, so that the analog signal is transmitted to the ADC end and forms a corresponding digital signal;

[0022] The PWM end is connected with the motor and controls the power parameter of the motor according to the digital signal.

[0023] In some embodiments, the MCU module has a DC end, and the DC end is connected with the TEC module to provide a direct current voltage to the TEC module;

[0024] The PWM end can control the voltage parameter of the TEC module according to the digital signal.

[0025] In some embodiments, the ADC end as an analog-digital conversion end can convert the analog signal into the digital signal;

[0026] The PWM end is used as a pulse width modulation end, and the output signal can be controlled by changing the duty cycle of the pulse; the duty cycle of the pulse can be adjusted according to the digital signal.

[0027] The output signal at least includes a voltage parameter of the TEC module and a power parameter of the motor.

[0028] In some embodiments, the heat dissipation system further includes:

[0029] A fan power supply is connected with the motor to provide an alternating voltage to the motor.

[0030] In some embodiments, the first temperature of the TEC module is adjusted by controlling the voltage parameter of the TEC module.

[0031] The speed of the fan is adjusted by controlling the power parameter of the motor.

[0032] In the second aspect, the utility model provides a kind of vehicle-mounted wireless charger.The vehicle-mounted wireless charger at least includes: charger main body, charging coil, coil magnetic separation sheet and the heat dissipation system described above;

[0033] The charging coil, the coil magnetic separation sheet and the heat dissipation system are all arranged on the charger main body.

[0034] The charging coil is arranged on the surface of the TEC module of the coil magnetic separation sheet away from the heat dissipation system, and the charging coil can generate heat.

[0035] The heat can be conducted to the coil magnetic separation sheet and dissipated to the outside atmosphere through the heat dissipation system.

[0036] The heat dissipation system and the vehicle-mounted wireless charger provided by the utility model embodiment have at least one beneficial effect: a novel heat dissipation system suitable for vehicle-mounted wireless charger is provided, by adding TEC module, NTC module and MCU module, and arranging coil magnetic separation sheet on the refrigeration surface of TEC module, and pasting heat dissipation fin on the heat gathering surface of TEC module; then, fan is arranged on the side of heat dissipation fin away from TEC module; moreover, MCU module is connected to at least part of fan, NTC module and TEC module; finally, TEC module and fan cooperate with each other to actively cool coil magnetic separation sheet, so as to improve the heat dissipation effect of the vehicle-mounted wireless charger, and further improve the charging efficiency of the vehicle-mounted wireless charger. BRIEF DESCRIPTION OF DRAWINGS

[0037] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which same reference numerals refer to same elements throughout the various figures of the drawings, the figures of the drawings do not limit the scope of the embodiments, and the drawings are not intended to be to scale.

[0038] Figure 1 A structure schematic view of the heat dissipation system and the coil magnetic shielding sheet provided with the charging coil is provided for the embodiments of the present application.

[0039] Figure 2 A functional block diagram of the vehicle-mounted wireless charger is provided for the embodiments of the present application.

[0040] Figure 3 A connection schematic view among the MCU module, the fan, the NTC module and the TEC module is provided for the embodiments of the present application.

[0041] Reference signs: 1000, vehicle-mounted wireless charger; 100, heat dissipation system; 200, coil magnetic shielding sheet; 300, charger main body; 400, charging coil; 1, TEC module; 101, refrigeration surface; 102, heat gathering surface; 2, heat dissipation sheet; 3, fan; 31, motor; 4, NTC module; 5, MCU module; 6, fan power supply. DETAILED DESCRIPTION

[0042] The present application will now be described in detail with reference to specific embodiments thereof. It is to be understood that the following explanation is only exemplary and not intended to limit the present application and its applications.

[0043] It should be noted that, unless otherwise explicitly specified and limited, the terms "relative," "mutually opposed," "preset direction," "flow direction," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installation," "fitting," "connection," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixing" can be bolt fixing, snap-fit ​​fixing, or glue fixing. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. "A plurality" or "several" means two or more. In addition, "and / or" includes any and all combinations of one or more of the related listed items. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] In this embodiment, the specific implementation of the "heat dissipation system and vehicle wireless charger" is not limited. Those skilled in the art can selectively use any suitable implementation method according to actual needs.

[0046] Figure 1 This is a schematic diagram of the heat dissipation system and the magnetic shielding sheet of the coil on which the charging coil is laid, provided in the embodiment of this utility model. Figure 2 A functional block diagram of a vehicle-mounted wireless charger provided in an embodiment of this utility model.

[0047] Please see Figure 1 and Figure 2 The heat dissipation system 100 is applied to an in-vehicle wireless charger 1000 with a coil magnetic shielding sheet 200.

[0048] The aforementioned heat dissipation system 100 includes: TEC module 1, heat sink 2, fan 3, NTC module 4, and MCU module 5.

[0049] The TEC module 1 (Thermo Electric Cooler, semiconductor refrigerator or thermoelectric refrigerator) is an electric couple (or thermoelectric conversion component) combined by two different semiconductors, and the electric couple can convert electric energy into heat energy or convert heat energy into electric energy through the Peltier effect (or thermoelectric effect).

[0050] In addition, the Peltier effect (or thermoelectric effect) refers to a phenomenon that one end of the electric couple absorbs heat and the other end emits heat when a direct current passes through the electric couple.

[0051] In addition, the TEC module 1 is generally composed of an N-type semiconductor and a P-type semiconductor; generally, the N-type semiconductor and the P-type semiconductor are in contact with each other to form the electric couple.

[0052] Further, when the electric couple passes a first current flowing from the N-type semiconductor to the P-type semiconductor, the cooling surface 101 of the TEC module 1 is located at one end of the electric couple close to the N-type semiconductor; in addition, when the electric couple passes a second current flowing from the P-type semiconductor to the N-type semiconductor, the cooling surface 101 of the TEC module 1 is located at one end of the electric couple close to the P-type semiconductor; in summary, the cooling surface 101 of the TEC module 1 can change according to the direction of the current, so that the TEC module 1 can switch between cooling and heating by changing the direction of the current (that is, the TEC module 1 can have cooling function or heating function on the same side).

[0053] It should be noted that the NTC module 4 (Negative Temperature Coefficient, temperature sensor or thermosensitive sensor) is a temperature sensor or thermosensitive sensor whose resistance value decreases with the increase of temperature.

[0054] It can be understood that the MCU module 5 (Microcontroller Unit, microcontroller or single-chip microcomputer) is a single-chip microcomputer system integrating a microprocessor core (Central Processing Unit, CPU), memory (Random Access Memory, RAM, Random Access Memory RAM; Read-Only Memory, ROM), various input / output interfaces (Input / Output), timers / counters, interrupt systems and the like.

[0055] In a word, the coil magnetic separation sheet 200 is a kind of non-conductive insulating material, which is used to isolate the charging coil 400 from the magnetic core, so as to avoid direct interaction and energy loss between the charging coil 400 and the magnetic core; wherein, in the wireless charging process, the coil magnetic separation sheet 200 can guide the magnetic field, so that the magnetic field energy can act on the receiving end coil (which is arranged in the mobile phone or tablet to be charged) as much as possible, thereby improving the conversion rate of the receiving end (which is the mobile phone or tablet to be charged); in addition, the coil magnetic separation sheet 200 can also optimize the magnetic field distribution, thereby reducing unnecessary electromagnetic radiation and heat, and further improving the charging efficiency of the vehicle-mounted wireless charger 1000.

[0056] In the embodiment of the present application, one surface of the coil magnetic separation sheet 200 abuts against the refrigeration surface 101 of the TEC module 1, and the other surface is used to carry the charging coil 400, and the heat sink 2 is attached to the heat concentration surface 102 of the TEC module 1; then, the fan 3 is arranged on the side of the heat sink 2 away from the TEC module 1; finally, the TEC module 1 and the fan 3 cooperate with each other to actively cool the coil magnetic separation sheet 200, thereby cooling the charging coil 400, so as to improve the heat dissipation effect of the vehicle-mounted wireless charger 1000, and further improve the charging efficiency of the vehicle-mounted wireless charger 1000.

[0057] The charging coil 400 is the main heat generating element of the vehicle-mounted wireless charger 1000, so that the temperature on the charging coil 400 is too high, which can be transmitted to the receiving end (which is the mobile phone or tablet to be charged), thereby causing the receiving end to reduce the charging efficiency due to the temperature being too high, so that effective cooling of the charging coil 400 can better improve the charging efficiency of the vehicle-mounted wireless charger 1000.

[0058] In addition, the MCU module 5 is connected to at least part of the fan 3, the NTC module 4 and the TEC module 1, so that the MCU module 5 can accurately control the temperature of the coil magnetic separation sheet 200 or the charging coil 400.

[0059] Specifically, the TEC module 1 has the refrigeration surface 101 and the heat concentration surface 102 which are away from each other; the refrigeration surface 101 of the TEC module 1 abuts against the coil magnetic separation sheet 200, so as to absorb the heat on the coil magnetic separation sheet 200, and the heat can flow to the heat concentration surface 102 of the TEC module 1, thereby reducing the temperature on the coil magnetic separation sheet 200.

[0060] In the embodiment of the present application, the heat sink 2 is attached to the heat concentration surface 102 of the TEC module 1, so that the heat is conducted to the heat sink 2.

[0061] Further, the fan 3 is fixedly installed on the side of the heat sink 2 away from the TEC module 1, so that the heat on the heat sink 2 is dissipated to the outside atmosphere.

[0062] The NTC module 4 is disposed inside the coil magnetic shield 200 to collect the real-time temperature on the coil magnetic shield 200. In addition, a receiving groove can be formed on the coil magnetic shield 200, and the receiving groove has a shape and size that are compatible with the NTC module 4 so that the NTC module 4 can be housed in the receiving groove.

[0063] In addition, the MCU module 5 is connected to at least a portion of the fan 3, the NTC module 4, and the TEC module 1, so that the MCU module 5 can control the temperature parameters of the TEC module 1 and the speed of the fan 3 according to the real-time temperature, thereby accurately controlling the temperature on the coil magnetic shielding sheet 200.

[0064] Generally, a layer of thermally conductive grease is uniformly applied between the cooling surface 101 of the TEC module 1 and the surface of the coil magnetic shield 200 facing away from the charging coil 400 to fill the gap between them, thereby improving the heat conduction efficiency between the coil magnetic shield 200 and the TEC module 1. Similarly, a layer of thermally conductive grease is also uniformly applied between the heat-collecting surface 102 of the TEC module 1 and the surface of the heat sink 2 to fill the gap between them, thereby improving the heat conduction efficiency between the TEC module 1 and the heat sink 2.

[0065] In some embodiments, the temperature parameters include a first temperature on the cooling surface 101 and a second temperature on the heat-collecting surface 102.

[0066] It is understandable that the relationship between the first temperature and the second temperature is negatively correlated, while the relationship between the second temperature and the fan speed 3 is positively correlated. In other words, when the first temperature decreases, the second temperature will increase. At this time, the fan speed 3 should be increased to ensure the heat dissipation effect on the heat-collecting surface 102, thereby preventing damage to the TEC module 1 due to poor heat dissipation of the heat-collecting surface 102. Generally speaking, the lower the first temperature, the better the active heat dissipation of the coil magnetic shielding sheet 200, and the better the cooling effect on the charging coil 400.

[0067] In some embodiments, such as Figure 1 and Figure 2 As shown, an electric current flowing in a preset direction is passed through the TEC module 1 to cause the cooling surface 101 to absorb heat and force the heat to flow to the heat-collecting surface 102.

[0068] It should be noted that the direction of heat flow can change with the direction of current flow; by changing the direction of current flow, the TEC module 1 can achieve cooling or heating on the same side.

[0069] In some embodiments, according to the figures and Figure 2It can be known that the MCU module 5 is engraved with a preset temperature; the TEC module 1 and the fan 3 cooperate with each other to make the real-time temperature on the coil magnetic sheet 200 reach the preset temperature.

[0070] Figure 3 The utility model provides a connection schematic diagram between MCU module, fan, NTC module and TEC module.

[0071] In some embodiments, in combination Figures 1-3 It can be known that the MCU module 5 has an ADC end and a PWM end, and the fan 3 has a motor 31.

[0072] The ADC end (Analog to Digital Converter) samples the input analog signal (the analog signal is the continuous real-time temperature collected), thereby obtaining the analog value of the analog signal measured in the preset time interval, that is, the continuous analog signal is discretized in time; next, the analog value obtained by sampling is quantized into a discrete value; in addition, quantization is to approximate the original continuous amplitude value with a limited number of amplitude values, so that the continuous amplitude of the analog signal becomes a limited number of discrete values with a preset interval; finally, the quantized discrete value is encoded into binary form to facilitate the processing and storage of the MCU module 5, thereby realizing the conversion of the analog signal; in addition, encoding is to express the quantized discrete value with binary digits according to a certain rule, and then convert it into a binary or multi-value digital signal.

[0073] In addition, the PWM end (Pulse Width Modulation) controls the output signal by changing the width (or duty ratio) of the pulse; specifically, the PWM end can generate a periodic square wave signal, and the ratio of the high level duration to the low level duration of the square wave signal (referred to as the duty ratio) determines the average value of the output signal; for example, in a cycle, if the high level duration is half of the total cycle (that is, the duty ratio is 50%), then the average value of the output signal is half of the maximum value, thereby realizing the modulation of the output signal.

[0074] In addition, the NTC module 4 is used to collect the real-time temperature on the coil magnetic sheet 200 and form a corresponding analog signal.

[0075] In the embodiment of the application, the ADC end is connected with the NTC module 4, so that the analog signal is transmitted to the ADC end and forms a corresponding digital signal.

[0076] Further, the PWM end is connected with the motor 31 and controls the power parameters of the motor 31 according to the digital signal.

[0077] In some embodiments, referenceFigures 1-3 It can be known that the MCU module 5 has a DC end, and the DC end is connected with the TEC module 1 to provide a direct current voltage to the TEC module 1.

[0078] Specifically, the PWM end can control the voltage parameter of the TEC module 1 according to the digital signal.

[0079] In some embodiments, referring to Figures 1-3 , the ADC end is an analog-digital conversion end, which can convert an analog signal into a digital signal.

[0080] It can be understood that the PWM end is a pulse width modulation end, which can control an output signal by changing the duty cycle of a pulse; the duty cycle of the pulse can be adjusted according to the digital signal.

[0081] It should be noted that the output signal at least includes the voltage parameter of the TEC module 1 and the power parameter of the motor 31.

[0082] In some embodiments, referring to Figures 1-3 , the heat dissipation system 100 further includes a fan power supply 6.

[0083] The fan power supply 6 is connected with the motor 31 to provide an alternating current voltage to the motor 31.

[0084] In some embodiments, as shown in Figure 1 and Figure 2 , the first temperature of the TEC module 1 is adjusted by controlling the voltage parameter of the TEC module 1.

[0085] Specifically, the speed of the fan 3 is adjusted by controlling the power parameter of the motor 31.

[0086] It can be known from Figure 1 and Figure 2 that the vehicle-mounted wireless charger 1000 at least includes a charger main body 300, a charging coil 400, a coil magnetic isolation sheet 200, and the heat dissipation system 100 described above.

[0087] Among them, the charging coil 400, the coil magnetic isolation sheet 200 and the heat dissipation system 100 are all arranged on the charger main body 300.

[0088] In addition, the charging coil 400 is arranged on the surface of the coil magnetic isolation sheet 200 away from the TEC module 1 of the heat dissipation system 100, and the charging coil 400 can generate heat.

[0089] In addition, the heat can be conducted to the coil magnetic isolation sheet 200 and dissipated to the outside atmosphere through the heat dissipation system 100.

[0090] In summary, the heat dissipation system and the vehicle-mounted wireless charger provided by the embodiment of the present application have the following advantages: the TEC module, the NTC module and the MCU module are added, the coil magnetic separation sheet is arranged on the refrigeration surface of the TEC module, and the heat dissipation sheet is attached to the heat gathering surface of the TEC module; then, the fan is arranged on the side of the heat dissipation sheet away from the TEC module; moreover, the MCU module is connected to at least part of the fan, the NTC module and the TEC module; finally, the TEC module and the fan are cooperated to actively dissipate heat from the coil magnetic separation sheet, so that the heat dissipation effect of the vehicle-mounted wireless charger is improved, and the charging efficiency of the vehicle-mounted wireless charger is improved. Therefore, the heat dissipation system and the vehicle-mounted wireless charger provided by the embodiment of the present application have certain novelty compared with the conventional heat dissipation system and the vehicle-mounted wireless charger.

[0091] The above is the further detailed description of the present application combined with the specific / preferred embodiments, and cannot be deemed as the limitation of the specific implementation of the present application to these descriptions. For the ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application.

Claims

1. A heat dissipation system applied to a vehicle wireless charger with a coil magnetic separation sheet; characterized in that, Comprising: a TEC module; the TEC module has a cold side and a hot side which are opposite to each other; the cold side of the TEC module is in abutment with the coil magnetic shield to absorb heat on the coil magnetic shield, and the heat can flow to the hot side of the TEC module; a heat sink; the heat sink is attached to the hot side of the TEC module to conduct the heat to the heat sink; a fan; the fan is fixedly installed on the side of the heat sink away from the TEC module to dissipate the heat on the heat sink to the outside atmosphere; an NTC module; the NTC module is arranged inside the coil magnetic shield to collect the real-time temperature on the coil magnetic shield; an MCU module; the MCU module is connected to at least part of the fan, the NTC module and the TEC module, so that the MCU module can control the temperature parameters of the TEC module and the speed of the fan according to the real-time temperature.

2. The heat dissipation system of claim 1, wherein, The temperature parameters include: a first temperature on the cold side and a second temperature on the hot side; the relationship between the first temperature and the second temperature is negatively correlated, and the relationship between the second temperature and the speed of the fan is positively correlated.

3. The heat dissipation system according to claim 1, wherein: a current flowing in a predetermined direction is passed through the TEC module to make the cold side absorb heat and force the heat to flow to the hot side; the flow direction of the heat can change with the change of the flow direction of the current; by changing the flow direction of the current, the TEC module can realize cooling or heating on the same side.

4. The heat dissipation system according to claim 1, wherein: a preset temperature is engraved in the MCU module; the TEC module and the fan cooperate with each other to make the real-time temperature on the coil magnetic shield reach the preset temperature.

5. The heat dissipation system according to claim 2, wherein: the MCU module has an ADC end and a PWM end, and the fan has a motor; the NTC module is used to collect the real-time temperature on the coil magnetic shield and form a corresponding analog signal; the ADC end is connected to the NTC module to make the analog signal transmitted to the ADC end and form a corresponding digital signal; the PWM end is connected to the motor and controls the power parameters of the motor according to the digital signal.

6. The heat dissipation system according to claim 5, wherein: the MCU module has a DC end, and the DC end is connected to the TEC module to provide a direct current voltage to the TEC module; the PWM end can control the voltage parameters of the TEC module according to the digital signal.

7. The heat dissipation system according to claim 6, wherein: the ADC end is an analog-to-digital conversion end, which can convert the analog signal into the digital signal; the PWM end is a pulse width modulation end, which can control the output signal by changing the duty cycle of the pulse; the duty cycle of the pulse can be adjusted according to the digital signal. The output signal at least includes: a voltage parameter of the TEC module and a power parameter of the motor.

8. The heat dissipation system of claim 5, wherein, Further comprising: A fan power supply; the fan power supply is connected with the motor to provide AC voltage to the motor.

9. The heat dissipation system according to claim 6, wherein, The first temperature of the TEC module is adjusted by controlling the voltage parameter of the TEC module; The rotating speed of the fan is adjusted by controlling the power parameter of the motor.

10. A wireless charger for a vehicle, comprising: At least including: A charger body, a charging coil, a coil magnetic isolation sheet and the heat dissipation system according to any one of claims 1-9; The charging coil, the coil magnetic isolation sheet and the heat dissipation system are arranged on the charger body; The charging coil is arranged on the surface of the coil magnetic isolation sheet away from the TEC module of the heat dissipation system, and the charging coil can generate heat; The heat can be conducted to the coil magnetic isolation sheet and dissipated to the outside atmosphere through the heat dissipation system.

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