TW202211579A - Charging module for electric vehicle - Google Patents

Abstract

A charging module for an electric vehicle includes a power conversion unit, a heat dissipation unit, and a thermoelectric module. The power conversion unit includes a power conversion module installed in a cabinet, or further includes a power distribution unit, and provides output power. The heat dissipation unit performs watering cooling or air cooling for the power conversion unit. The thermoelectric module generates electric energy according to a temperature difference between the power conversion unit and the heat dissipation unit in operation. The electric energy is used for the power conversion unit and/or the heat dissipation unit.

Description

Electric vehicle charging module

The present invention relates to an electric vehicle charging module, in particular to an electric vehicle charging module capable of recovering heat energy to achieve self-power supply.

The electric vehicle charging module is usually an important power conversion component in a general electric vehicle charging system. The electric vehicle charging system converts the electric power through the electric vehicle charging module and supplies the electric power to the electric vehicle through the charging pile. Please refer to FIG. 1 and FIG. 2 , which are a schematic diagram of a conventional electric vehicle charging module dissipating heat in a gas manner and a schematic diagram of a conventional electric vehicle charging module dissipating heat in a liquid manner, respectively. Taking an electric vehicle charging module with a cabinet-type power conversion device as an example, the existing electric vehicle charging module designs mostly use gas (such as wind) or liquid (such as water) to remove the heat to achieve the power conversion of the system. The effect of cooling the device. Taking the air-cooled type shown in FIG. 1 as an example, cold air is fed into the cabinet 90 to extract the heat generated by the power conversion equipment 95 in the cabinet 90 to cool the power conversion equipment 95 . Taking the water-cooled type in FIG. 2 as an example, the water-cooled cooler 80 cooperates with the use of the cold water pipeline 82 and the hot water pipeline 84, so that the heat generated by the power conversion device 95 is brought out to the water-cooled cooler 80 through the hot water pipeline 84, and The cold water provided by the water-cooled chiller 80 is passed through the cold water line 82 to cool the power conversion device 95 . However, with the above heat dissipation method, the excess heat energy can only be dissipated in the air or through the heat exchange between the liquid and the air, that is, the heat energy dissipated in the air cannot be used for other purposes, resulting in energy waste and unfriendly to the environment. , poor economic efficiency, etc.

Therefore, how to design an electric vehicle charging module to achieve both environmental protection, energy saving and economic benefits by recycling heat energy is an important subject studied by the present inventor.

The purpose of the present invention is to provide an electric vehicle charging module, which solves the problems that the excess heat energy generated during the charging process is dissipated into the air and cannot be used for other purposes, resulting in wasted energy, unfriendly to the environment, and poor economic benefits.

In order to achieve the purpose disclosed above, the electric vehicle charging module proposed by the present invention includes a power conversion unit, a heat dissipation unit and a thermoelectric module. The power conversion unit includes a power conversion module arranged in the cabinet, or further includes a power distribution unit, which provides output power. The heat dissipation unit performs water cooling or air cooling for the power conversion unit to dissipate heat. The thermoelectric module utilizes the temperature difference between the power conversion unit and the heat dissipation unit to generate electricity. The electrical energy is used to provide the power conversion unit and/or the heat dissipation unit.

In one embodiment, when performing water-cooled heat dissipation, the heat-dissipating unit is a water-cooled pump.

In one embodiment, the heat dissipation unit and the thermoelectric module are disposed in the cabinet.

In one embodiment, the heat dissipation unit and the thermoelectric module are not disposed in the cabinet.

In one embodiment, the electric vehicle charging module further includes a first pipeline and a second pipeline connected between the power conversion unit and the water-cooled pump. The heat energy generated by the power conversion unit is transmitted to the water cooling pump through the first pipeline. The water cooling pump sends cold water to the power conversion unit through the second pipeline. The thermoelectric module receives the first temperature of the first pipeline and the second temperature of the second pipeline, and generates electrical energy based on the temperature difference between the first temperature and the second temperature.

In one embodiment, when performing air cooling and heat dissipation, the heat dissipation unit is a heat dissipation fan.

In one embodiment, the heat dissipation unit is disposed in the cabinet.

In one embodiment, the thermoelectric module is disposed on the power conversion unit, receives the first temperature of the power conversion unit and the second temperature in the cabinet, and generates electric energy based on the temperature difference between the first temperature and the second temperature.

In one embodiment, the thermoelectric module is disposed at the air inlet of the cabinet, receives the first temperature inside the cabinet and the second temperature outside the cabinet, and generates electrical energy based on the temperature difference between the first temperature and the second temperature.

In one embodiment, the thermoelectric module is disposed at the air outlet of the cabinet, receives the first temperature inside the cabinet and the second temperature outside the cabinet, and generates electrical energy based on the temperature difference between the first temperature and the second temperature.

In one embodiment, the electric vehicle charging module further includes a first power converter, a power storage unit and a second power converter. The first power converter is coupled to the thermoelectric module, receives the first power source, and converts the first power source into the second power source. The power storage unit is coupled to the first power converter, and receives the second power source for energy storage. The second power converter is coupled to the first power converter and the power storage unit, receives the second power source, and converts the second power source into electrical energy to provide the power conversion unit and/or the heat dissipation unit.

In one embodiment, the first power converter is an AC-to-DC converter or a DC-to-DC converter.

In one embodiment, the second power converter is a DC-DC converter or a DC-AC converter.

In one embodiment, the thermoelectric module is a thermoelectric generator.

In one embodiment, the output power is used to power the charging pile.

In one embodiment, the electric vehicle charging module is disposed in the charging pile, and the output power is used to supply power to the charging pile.

In one embodiment, the power conversion module is an AC-to-DC converter.

In order to further understand the technology, means and effect adopted by the present invention to achieve the predetermined purpose, please refer to the following detailed description and accompanying drawings of the present invention. For specific understanding, however, the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.

The technical content and detailed description of the present invention are described as follows in conjunction with the drawings.

Please refer to FIG. 3 , which is a block diagram of the electric vehicle charging module of the present invention. The electric vehicle charging module includes a power conversion unit 10 , a heat dissipation unit 20 and a thermoelectric module 30 . In the present invention, the power source generated by the electric vehicle charging module is used to supply power to the charging pile 100 . In practical applications, the electric vehicle charging module can be disposed in the charging pile 100 , or the electric vehicle charging module can be disposed outside the charging pile 100 , both of which can be used to provide the generated power to supply power to the charging pile 100 . In the embodiment shown in FIG. 3 , a power supply mode in which the electric vehicle charging module is disposed outside the charging pile 100 is illustrated. Of course, the illustration that the electric vehicle charging module is arranged in the charging pile 100 is only different in that the electric vehicle charging module is shown in the charging pile 100 , and the power supply connection method can be designed to achieve power supply to the charging pile 100 .

A charging pile is a device that supplements electric energy for electric vehicles (including pure electric vehicles and plug-in hybrid electric vehicles), similar to the gas station or gas station used by fuel vehicles. A sort of. According to the classification of output current provided by charging piles, charging piles can be divided into AC charging piles and DC charging piles. Usually, fast charging piles are all DC charging piles (but not all DC charging piles are fast charging piles).

The power conversion unit 10 includes a power conversion module 11 disposed in the cabinet, or further includes a power distribution unit 12 to provide the output power V _OUT . Wherein, the power distribution unit 12 can be installed in the cabinet, and can also be installed outside the cabinet (ie, not in the cabinet). In other words, the power conversion unit 10 may only include the power conversion module 11 (disposed in the cabinet), or may include both the power conversion module 11 (disposed in the cabinet) and the power distribution unit 12 (can be disposed in the cabinet or outside the cabinet). The power conversion module 11 is used for power conversion, and may have a power conversion circuit to achieve the operation of power conversion. The power distribution unit 12 (or power distributor, power distribution unit (PDU)) is used for power distribution and has the functions of protection and warning. If it is installed in the cabinet, it can be used as a cabinet type The rack power distribution unit (rPDU) can make the power distribution of peripheral equipment more efficient and meet the needs of high-density power distribution according to different customer needs.

The heat dissipation unit 20 performs water cooling or air cooling for the power conversion unit 10 to dissipate heat. As shown in FIG. 3 , the operation of the power conversion unit 10 in the power conversion module 11 and the power distribution unit 12 makes the process of supplying power to the charging pile 100 generate heat energy E _HG , that is, the process of supplying power to the charging pile 100 can be regarded as a power conversion unit 10 is a heat source that generates heat.

The heat dissipation unit 20 performs water cooling or air cooling on the power conversion unit 10 for heat dissipation, so it can be regarded as providing cooling energy E _HD for cooling the power conversion unit 10 to reduce the temperature of the power conversion unit 10 .

When the hot and cold ends of the thermoelectric module 30 are exposed to different temperatures at the same time (ie, the high temperature generated by the heating energy E _HG and the low temperature generated by the cooling energy E _HD ), the temperature difference will cause electrons at the hot and cold ends to flow to generate current, The thermoelectric effect or the Peltier-Seebeck effect is formed, thus converting thermal energy into electrical energy. The thermoelectric module 30 may be a thermoelectric generator. Therefore, the thermoelectric module 30 receives the heating energy _EHG generated by the power conversion unit 10 and the cooling energy _EHD provided by the heat dissipation unit, and is based on the difference between the heating energy _EHG and the cooling energy EHD (ie the power conversion unit 10 and the cooling energy _EHD ). The temperature difference (existing thermal energy) of the heat dissipating unit 20 during operation converts a part of the heating energy E _HG into electrical energy. Thereby, the electric energy generated by the thermoelectric module 30 is used to supply the electric power required by the power conversion unit 10 and/or the heat dissipation unit 20 . In this embodiment, the power supply voltage of the thermoelectric module 30 to the power conversion unit 10 is the voltage V ₁₀ , and the power supply voltage of the thermoelectric module 30 to the heat dissipation unit 20 is the voltage V ₂₀ . In this way, electricity that can supply power to the power conversion unit 10 and the heat dissipation unit 20 is generated through the recovery and reuse of thermal energy, so as to achieve both environmental protection, energy saving and economic benefit.

Please refer to FIG. 4A and FIG. 4B , which are a block diagram and a schematic diagram of the voltage generated by the thermoelectric module of the present invention being converted into a power supply voltage, respectively. In one embodiment, the power supply voltage V ₁₀ to the power conversion unit 10 and the power supply voltage V ₂₀ to the heat dissipation unit 20 may be realized by the power generated by the converted and stored thermoelectric module 30 , as described below. The electric vehicle charging module further includes a first power converter 31 , a power storage unit 32 and a second power converter 33 . As mentioned above, the thermoelectric module 30 is disposed between the heat source and the radiator, wherein the heat source is the power conversion unit 10, and the heat sink is a heat dissipation fin. The temperature difference causes electrons at the hot and cold ends to flow and generate an electric current, thus converting thermal energy into electricity.

Specifically, the first power converter 31 is coupled to the thermoelectric module 30 to receive the first power V1 and convert the first power V1 into the second power V2. In different embodiments, since the first power source V1 output by the thermoelectric module 30 may be a DC power source or an AC power source, the first power converter 31 is an AC-to-DC converter or A DC-to-DC converter, which can be a boost converter, is used to boost the lower voltage first power supply V1 to the higher voltage second power supply V2.

The power storage unit 32 is coupled to the first power converter 31 and receives the second power V2 to store energy. The power storage unit 32 is a storage battery (or a rechargeable battery).

The second power converter 33 is coupled to the first power converter 31 and the power storage unit 32, receives the second power V2, and converts the second power V2 into the power to provide the power supply voltage V10 of the power conversion unit ₁₀ and/or dissipate heat The supply voltage V _{20 of the unit 20} . In different embodiments, the power supply voltage V ₁₀ and the power supply voltage V ₂₀ can be a DC power supply or an AC power supply, therefore, the second power converter 33 is a DC-to-DC converter or a DC-AC power supply Converter (DC-to-AC converter).

Furthermore, in practical applications, the power storage unit 32 can not only be used for energy storage, but can also output the stored electrical energy when the thermoelectric module 30 has no output power supply (for example, no output first power supply V1 ), and After being converted by the second power converter 33, it is used as the power supply voltage _V10 and/or _the power supply voltage V20.

Therefore, if the second power converter 33 is a DC-DC converter, it can be used to convert the DC second power supply V2 or the output voltage of the power storage unit 32 into a DC power supply voltage V ₁₀ or a power supply voltage V ₂₀ of other voltages. Also, if the second power converter 33 is a DC-to-AC converter, it can be used to convert the second DC voltage V2 of DC or the voltage output by the power storage unit 32 into the AC power supply voltage V ₁₀ or the power supply voltage V ₂₀ . DC or AC power is provided to the power conversion unit 10 or the heat dissipation unit 20 .

Please refer to FIG. 5 , which is a schematic diagram of the water-cooled heat dissipation of the electric vehicle charging module of the present invention. The power conversion unit 10 disposed in the cabinet (not shown) is powered by the AC power V _AC through the AC input bus bar B _AC , and converts the AC power V _AC to pass through the DC output bus (DC output bus) bar)B _DC provides DC power V _DC output to supply (charge) power to the charging pile 100. However, not limited to this, the power conversion unit 10 can also provide an AC power output to supply (charge) the charging pile 100 with electricity. Further, through the use of the water-cooled cooler 20 (which is an embodiment of the heat dissipation unit 20 of the present invention, wherein the water-cooled cooler 20 mainly includes a water-cooled pump) and the use of the cold water pipeline 22 and the hot water pipeline 24, the power conversion unit 10 is The generated heat is delivered to the water-cooled cooler 20 via the hot water line 24 , and the cold water provided by the water-cooled cooler 20 is delivered to the power conversion unit 10 via the cold water line 22 to cool the power conversion unit 10 .

Further, the thermoelectric module 30 is disposed between the cold water pipeline 22 and the hot water pipeline 24 , that is, the hot and cold ends of the thermoelectric module 30 are exposed to different temperatures at the same time (the temperature of the cold water pipeline 22 is lower than the temperature of the hot water pipeline 24 ). ), therefore, the temperature difference between the cold water pipeline 22 and the hot water pipeline 24 causes electrons at the cold and hot ends to flow, so that the thermoelectric module 30 generates current, so the thermoelectric module 30 converts thermal energy into electrical energy. In this embodiment, the thermoelectric module 30 can directly provide the power conversion unit 10 with the voltage V ₁₀ and the water cooling machine 20 with the voltage V ₂₀ , thereby supplying the power conversion unit 10 and the water cooling power required by the machine 20. Alternatively, the thermoelectric module 30 can convert and store the output power through the power conversion and energy storage structure as shown in FIG. 4A (or FIG. 4B ) to further provide power to the power conversion unit 10 and the water-cooled cooler 20 . Therefore, the heat energy generated by the power conversion unit 10 can be converted into electrical energy through the thermoelectric module 30 to achieve the purpose of recycling and reusing the heat energy, so as to have the advantages of environmental protection, energy saving and economic benefit.

In different embodiments, the number of thermoelectric modules 30 may be more than one. In other words, the number of thermoelectric modules 30 can be more than one, and the thermoelectric modules 30 are arranged between the cold water pipeline 22 and the hot water pipeline 24 , and the electron flow at the cold and hot ends can also be achieved due to the temperature difference between the cold water pipeline 22 and the hot water pipeline 24 . The thermoelectric module 30 generates current to convert thermal energy into electrical energy, so as to generate a power supply voltage V ₁₀ for the power conversion unit 10 and a power supply voltage V ₂₀ for the heat dissipation unit 20 , thereby supplying the power conversion unit 10 and the heat dissipation unit. 20 electricity required.

Furthermore, in different embodiments, the water-cooled cooler 20 (ie, an embodiment of the heat dissipation unit 20 ) and the thermoelectric module 30 may be disposed in a non-cabinet (ie, outside the rack), or the water-cooled cooler may be designed 20 and the thermoelectric module 30 are integrated and disposed in the cabinet.

Please refer to FIG. 6A , which is a schematic diagram of the first embodiment of the air-cooled heat dissipation of the electric vehicle charging module of the present invention. In this embodiment, the thermoelectric module 30 is disposed on the power conversion unit 10, that is, the power conversion module 11 and/or the power distribution unit 12, depending on which of the two generates more thermal energy. By sending cold air into the cabinet, the heat generated by the power conversion unit 10 in the cabinet is drawn out to cool the power conversion unit 10 . While dissipating heat, one end of the thermoelectric module 30 is attached to the power conversion unit 10, so it can receive the temperature (the first temperature) of the power conversion unit 10; the other end of the thermoelectric module 30 can receive the ) temperature (second temperature), which is the temperature caused by the cold air being sent into the cabinet. Therefore, the hot and cold ends of the thermoelectric module 30 are simultaneously exposed to different temperatures (ie, the first temperature is higher than the second temperature), and the temperature difference will cause electrons at the cold and hot ends to flow to generate current, thereby converting thermal energy into electrical energy. Therefore, the thermoelectric module 30 can provide the power supply voltage V10 for the power conversion unit ₁₀ and the power supply voltage for the fan device or cooling fan (not shown) for supplying and exhausting air, thereby supplying the power conversion unit 10 and the fan. The power required by the device or cooling fan.

Please refer to FIG. 6B , which is a schematic diagram of the second embodiment of the air-cooled heat dissipation of the electric vehicle charging module of the present invention. In this embodiment, the thermoelectric module 30 is disposed at the air inlet 91 of the cabinet and is exposed outside the cabinet. Likewise, the cooling air is fed into the cabinet through the air inlet 91 to extract the heat generated by the power conversion unit 10 in the cabinet, thereby cooling the power conversion unit 10 . While dissipating heat, one end of the thermoelectric module 30 is exposed inside the cabinet, so it can receive the temperature inside the cabinet (the first temperature); the other end of the thermoelectric module 30 is exposed outside the cabinet and can receive the temperature outside the cabinet (the first temperature). 2 temperature). Therefore, the hot and cold ends of the thermoelectric module 30 are simultaneously exposed to different temperatures (ie, the first temperature is higher than the second temperature), and the temperature difference will cause electrons at the cold and hot ends to flow to generate current, thereby converting thermal energy into electrical energy. Therefore, the thermoelectric module 30 can provide the power supply voltage V10 for the power conversion unit ₁₀ and the power supply voltage for the fan device or cooling fan (not shown) for supplying and exhausting air, thereby supplying the power conversion unit 10 and the fan. The power required by the device or cooling fan.

Please refer to FIG. 6C , which is a schematic diagram of the third embodiment of the air-cooled heat dissipation of the electric vehicle charging module of the present invention. In this embodiment, the thermoelectric module 30 is disposed at the air outlet 92 of the cabinet, and is exposed outside the cabinet. Similarly, by sending cold air into the cabinet through the air inlet 91 , the heat generated by the power conversion unit 10 in the cabinet is taken out from the air outlet 92 to cool the power conversion unit 10 . While dissipating heat, one end of the thermoelectric module 30 is exposed inside the cabinet, so it can receive the temperature inside the cabinet (the first temperature); the other end of the thermoelectric module 30 is exposed outside the cabinet and can receive the temperature outside the cabinet (the first temperature). 2 temperature). Therefore, the hot and cold ends of the thermoelectric module 30 are simultaneously exposed to different temperatures (ie, the first temperature is higher than the second temperature), and the temperature difference will cause electrons at the cold and hot ends to flow to generate current, thereby converting thermal energy into electrical energy. Therefore, the thermoelectric module 30 can provide the power supply voltage V10 for the power conversion unit ₁₀ and the power supply voltage for the fan device or cooling fan (not shown) for supplying and exhausting air, thereby supplying the power conversion unit 10 and the fan. The power required by the device or cooling fan.

In different embodiments, the location of the thermoelectric module 30 is not limited by the location shown in FIG. 6A , FIG. 6B or FIG. 6C , in other words, the thermoelectric module 30 can also be arranged in a position sensitive to temperature sensing in the cabinet. Alternatively, the thermoelectric module 30 may be simultaneously disposed on the power conversion unit 10 ( FIG. 6A ), the air inlet 91 ( FIG. 6B ) disposed in the cabinet, and the air outlet 92 ( FIG. 6C ) disposed in the cabinet, that is, the thermoelectric module 30 The number can be more than one, thereby providing the use of multiple locations. Similarly, when the hot and cold ends of the thermoelectric module 30 are exposed to different temperatures at the same time, the temperature difference will cause electrons at the hot and cold ends to flow to generate current, thus converting the thermal energy into electrical energy, and providing the power conversion unit 10 with a supply voltage of voltage _V10 and the power supply voltage to the fan device or cooling fan (not shown) for supplying and exhausting air, thereby supplying the power required by the power conversion unit 10 and the fan device or cooling fan.

To sum up, the present invention has the following features and advantages: using a simple element-thermoelectric module, using its thermoelectric conversion characteristics, the thermal energy is converted into electrical energy to supply the power required by the system device, so as to achieve thermal energy recovery and recycling. The purpose of utilization, and has the advantages of environmental protection, energy saving and economic benefits.

The above descriptions are only detailed descriptions and drawings of the preferred embodiments of the present invention, but the features of the present invention are not limited thereto, and are not intended to limit the present invention. The entire scope of the present invention should be defined as the following claims All the embodiments that conform to the spirit of the scope of the patent application of the present invention and similar variations thereof shall be included in the scope of the present invention. Modifications can be covered by the following patent scope of this case.

90: Cabinet

95: Power Conversion Equipment

80: Water-cooled cooler

82: cold water pipeline

84: Hot water pipeline

100: Charging pile

10: Power conversion unit

20: Cooling unit

30: Thermoelectric module

11: Power conversion module

12: Power distribution unit

31: First Power Converter

32: Power storage unit

33: Second power converter

20: Water-cooled cooler

91: air inlet

92: air outlet

22: cold water pipeline

24: Hot water pipeline

V _AC : AC power

V _DC : DC power supply

V _OUT : output power

E _HG : heat energy

E _HD : Cooling Energy

V1: first power supply

V2: Second power supply

V ₁₀ : Supply voltage

V ₂₀ : Supply voltage

B _AC : AC input busbar

B _DC : DC output busbar

Fig. 1 is a schematic diagram of the existing electric vehicle charging module dissipating heat by gas.

Fig. 2 is a schematic diagram of the conventional electric vehicle charging module dissipating heat by means of liquid.

FIG. 3 is a block diagram of the electric vehicle charging module of the present invention.

FIG. 4A is a block diagram showing that the voltage generated by the thermoelectric module of the present invention is converted into a power supply voltage.

FIG. 4B is a schematic diagram illustrating that the voltage generated by the thermoelectric module of the present invention is converted into a power supply voltage.

FIG. 5 is a schematic diagram of the water-cooled heat dissipation of the electric vehicle charging module of the present invention.

FIG. 6A is a schematic diagram of the first embodiment of the air-cooled heat dissipation of the electric vehicle charging module of the present invention.

FIG. 6B is a schematic diagram of the second embodiment of the air-cooled heat dissipation of the electric vehicle charging module of the present invention.

FIG. 6C is a schematic diagram of the third embodiment of the air-cooled heat dissipation of the electric vehicle charging module of the present invention.

10: Power conversion unit

20: Cooling unit

30: Thermoelectric module

11: Power conversion module

12: Power distribution unit

100: Charging pile

E _HG : heat energy

E _HD : Cooling Energy

V _OUT : output power

V ₁₀ : Supply voltage

V ₂₀ : Supply voltage

Claims (17)

An electric vehicle charging module, comprising: a power conversion unit, comprising a power conversion module disposed in a cabinet, or further comprising a power distribution unit to provide an output power; a heat dissipation unit for water-cooling or air-cooling heat dissipation for the power conversion unit; and a thermoelectric module, which utilizes a temperature difference between the power conversion unit and the heat dissipation unit to generate an electric energy during operation; Wherein, the electrical energy is used to provide the power conversion unit and/or the heat dissipation unit. The electric vehicle charging module according to claim 1, wherein when performing water-cooling heat dissipation, the heat-dissipating unit is a water-cooling pump. The electric vehicle charging module according to claim 2, wherein the heat dissipation unit and the thermoelectric module are disposed in the cabinet. The electric vehicle charging module of claim 2, wherein the heat dissipation unit and the thermoelectric module are not disposed in the cabinet. The electric vehicle charging module according to claim 3 or claim 4, further comprising a first pipeline and a second pipeline connected between the power conversion unit and the water-cooled pump; Wherein, the heat energy generated by the power conversion unit is transmitted to the water-cooled pump through the first pipeline; the water-cooled pump transmits cold water to the power conversion unit through the second pipeline; The thermoelectric module receives a first temperature of the first pipeline and a second temperature of the second pipeline, and generates the electrical energy based on the temperature difference between the first temperature and the second temperature. The electric vehicle charging module according to claim 1, wherein when air-cooled heat dissipation is performed, the heat dissipation unit is a heat dissipation fan. The electric vehicle charging module according to claim 6, wherein the cooling unit is disposed in the cabinet. The electric vehicle charging module of claim 7, wherein the thermoelectric module is disposed on the power conversion unit, receives a first temperature of the power conversion unit and a second temperature in the cabinet, and based on the first temperature The temperature difference between a temperature and the second temperature generates the electrical energy. The electric vehicle charging module of claim 7, wherein the thermoelectric module is disposed at an air inlet of the cabinet, receives a first temperature inside the cabinet and a second temperature outside the cabinet, and based on the first temperature The temperature difference between a temperature and the second temperature generates the electrical energy. The electric vehicle charging module of claim 7, wherein the thermoelectric module is disposed at an air outlet of the cabinet, receives a first temperature inside the cabinet and a second temperature outside the cabinet, and based on the first temperature The temperature difference between a temperature and the second temperature generates the electrical energy. The electric vehicle charging module as described in claim 1, further comprising: a first power converter, coupled to the thermoelectric module, receiving a first power source, and converting the first power source into a second power source; a power storage unit, coupled to the first power converter, for receiving the second power source for energy storage; and A second power converter, coupled to the first power converter and the power storage unit, receives the second power source, and converts the second power source into the electrical energy to provide the power conversion unit and/or the heat dissipation unit. The electric vehicle charging module of claim 11, wherein the first power converter is an AC-to-DC converter or a DC-to-DC converter. The electric vehicle charging module of claim 11, wherein the second power converter is a DC-DC converter or a DC-AC converter. The electric vehicle charging module of claim 1, wherein the thermoelectric module is a thermoelectric generator. The electric vehicle charging module according to claim 1, wherein the output power is used to supply power to a charging pile. The electric vehicle charging module according to claim 1, wherein the electric vehicle charging module is disposed in a charging pile, and the output power is used to supply power to the charging pile. The electric vehicle charging module of claim 1, wherein the power conversion module is an AC-to-DC converter.

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