A fast and slow charging cable assisted autonomous cooling system and its use method

Abstract

The present application relates to a fast and slow charging cable-assisted autonomous cooling system and a method of use, belonging to the field of vehicle charging technology. The fast and slow charging cable-assisted autonomous cooling system includes a temperature charging port unit, the charging port unit includes a charging port, a cooling source, and a driving pump that drives a cooling medium of the cooling source to cool the charging port, and a temperature difference power generation unit. The temperature difference power generation unit includes a charging cable connected to the charging port and a temperature difference power generation module arranged on the charging cable, and the temperature difference power generation module is electrically connected to the driving pump. The present application can utilize the heat generated by the charging cable in the electric vehicle through the temperature difference power generation module, thereby improving the efficiency and utilization rate of energy use, avoiding directly using the battery power to generate electricity, which further consumes its own power and reduces the energy utilization rate.

Description

Technical Field

[0001] The present application relates to the field of vehicle charging technology, and in particular to a fast and slow charging cable assisted autonomous cooling system and a method of use. Background Art

[0002] Electric vehicles require certain temperature conditions to achieve optimal charging status when charging, especially for charging ports and charging cables. International requirements stipulate that the temperature rise cannot exceed 50°C. However, existing charging ports and charging cables usually use passive heat dissipation with the surrounding air after the temperature rises, resulting in poor heat dissipation efficiency of the charging port. The temperature rise of the charging port and cable will also reduce the charging efficiency. In addition, the heat generated by the existing charging port and charging cable cannot be reused, resulting in waste.

[0003] In order to solve the above problems, a cooling method for heat exchange of charging ports has been introduced on the market. However, the existing charging port cooling device uses an independent power supply or battery power supply, which leads to energy waste and low energy efficiency. Summary of the Invention

[0004] The embodiments of the present application provide a fast and slow charging cable assisted autonomous cooling system and a method of use to solve the problem in the related art that the existing charging port cooling device uses an independent power supply or battery power supply to draw power, resulting in energy waste and low energy efficiency.

[0005] A first aspect of an embodiment of the present application provides a fast and slow charging cable assisted autonomous cooling system, comprising:

[0006] a charging port unit, the charging port unit comprising a charging port, a cooling source, and a driving pump for driving a cooling medium in the cooling source to cool the charging port;

[0007] A thermoelectric power generation unit includes a charging cable connected to the charging port and a thermoelectric power generation module provided on the charging cable, wherein the thermoelectric power generation module is electrically connected to the driving pump.

[0008] In some embodiments, a cooling medium is stored in the cooling source, and a first pipeline is connected between the cooling source and the charging port to transport the cooling medium to the charging port;

[0009] A second pipeline is connected between the charging port and the cooling source, allowing the cooling medium passing through the charging port to flow back into the cooling source.

[0010] In some embodiments, the second pipeline includes a first branch and a second branch that are interconnected;

[0011] One end of the first branch away from the second branch is connected to the charging port, and one end of the second branch away from the first branch is connected to a cooling source.

[0012] In some embodiments, the driving pump is provided on the first pipeline.

[0013] In some embodiments, a first heat sink is provided on the second branch of the second pipeline.

[0014] In some embodiments, the present invention further comprises:

[0015] a battery connected to the charging port via a charging cable;

[0016] A third pipeline is connected between the battery and the second pipeline to transport the cooling medium into the battery;

[0017] A fourth pipeline is connected between the battery and the cooling source to transport the cooling medium to the cooling source.

[0018] In some embodiments, a second heat sink is provided in the battery, and one end of the third pipe and the fourth pipe located in the battery is connected to and communicates with the second heat sink.

[0019] In some embodiments, the first branch, the second branch, and the third pipeline are connected via a three-way valve.

[0020] A second aspect of the present application provides a method for using a fast and slow charging cable-assisted autonomous cooling system, comprising the following steps:

[0021] When the charging port is charging, the charging cable heats up, and the temperature difference between the charging cable and the external environment is used by the thermoelectric power generation module to generate electricity and start the drive pump;

[0022] The driving pump drives the cooling medium in the cooling source to flow through the first pipeline to the charging port, and the cooling medium exchanges heat with the charging port to reduce the charging temperature of the charging port;

[0023] The cooling medium after heat exchange flows back to the cooling source through the second pipeline and the first heat sink, and then circulates to perform heat exchange on the charging port.

[0024] In some embodiments, the method further comprises:

[0025] When the battery charging temperature does not reach the set temperature threshold, the three-way valve is switched to connect the first branch with the third pipe;

[0026] The first branch conducts the cooling medium heated by heat exchange at the charging port through the third pipe into the second heat sink. The second heat sink exchanges heat with the battery to adjust the battery charging temperature.

[0027] The cooling medium flowing out of the second heat sink flows back into the cooling source through the fourth pipeline.

[0028] The beneficial effects of the technical solution provided by this application include:

[0029] The thermoelectric power generation module is arranged on the outside of the charging cable. The temperature rise of the charging cable during charging increases the temperature inside the thermoelectric power generation module, making the internal and external ambient temperatures of the thermoelectric power generation module different, thereby generating a temperature difference, which enables the thermoelectric power generation module to generate electricity. When the electric vehicle is charging, the charging port will continue to heat up as the charging port is charged. The electricity generated by the thermoelectric power generation module is then transmitted to the driving pump through the wires connected to the driving pump, so that the driving pump drives the cooling medium in the cooling source to flow toward the charging port in the first pipeline. After the cooling medium is delivered to the charging port, the charging port is cooled. At the same time, the cooling medium will continue to flow into the second pipeline until it flows back to the cooling source through the second pipeline. In the process of continuous flow through the second pipeline, the cooling medium is cooled to prevent the cooling medium in the cooling source from heating up too quickly, resulting in reduced cooling efficiency.

[0030] The heat generated by the charging cable in the electric vehicle is utilized through the thermoelectric power generation module to improve the efficiency and utilization of energy, avoid directly using the battery power to generate electricity, which will further consume its own power and reduce energy utilization.

[0031] The charging port is cooled by a cooling medium so that the ambient temperature of the charging port is continuously maintained at an optimal constant temperature, thereby improving the charging efficiency of the charging port and avoiding a decrease in charging efficiency due to a temperature rise at the charging port, which results in a decrease in the power transmission conversion rate.

[0032] When the cooling medium flows through the charging port, it will exchange heat with the charging port, taking away the heat from the charging port. The heat continues to flow with the cooling medium, and the heat generated by the charging port can be used to heat the battery when the ambient temperature is low, thereby improving the utilization rate of the heat from the charging port. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 A first structural diagram provided in an embodiment of the present application;

[0035] Figure 2 A second structural diagram provided in an embodiment of the present application;

[0036] Figure 3 This is a flowchart provided for an embodiment of the present application.

[0037] 1. Thermoelectric power generation module; 111. First heat sink; 112. Second heat sink; 3. Drive pump; 4. Cooling source; 51. First pipeline; 52. Second pipeline; 521. First branch; 522. Second branch; 53. Third pipeline; 54. Fourth pipeline; 6. Three-way valve; 8. Charging cable; 9. Charging port; 10. Battery. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] The embodiments of the present application provide a fast and slow charging cable assisted autonomous cooling system and a method of use, which can solve the problem that the existing charging port cooling device uses an independent power supply or battery power supply to draw power, resulting in energy waste and low energy efficiency.

[0040] See also Figure 1-2 As shown, the first aspect of the embodiment of the present application provides a fast and slow charging cable assisted autonomous cooling system, including:

[0041] The charging port unit includes a charging port 9, a cooling source 4, and a driving pump 3 that drives the cooling medium of the cooling source 4 to cool the charging port 9;

[0042] The thermoelectric power generation unit includes a charging cable 8 connected to the charging port 9 and a thermoelectric power generation module 1 provided on the charging cable 8 . The thermoelectric power generation module 1 is electrically connected to the driving pump 3 .

[0043] The thermoelectric power generation module 1 is arranged on the outside of the charging cable 8. The temperature rise of the charging cable 8 during charging increases the temperature inside the thermoelectric power generation module 1, making the internal and external ambient temperatures of the thermoelectric power generation module 1 different, thereby generating a temperature difference, and the thermoelectric power generation module 1 can generate electricity.

[0044] When the electric vehicle is being charged, the charging port 9 will continue to heat up as the charging takes place. The electricity generated by the temperature difference power generation module 1 is then transmitted to the driving pump 3 through the wires connected to the driving pump 3, so that the driving pump 3 drives the cooling medium in the cooling source 4 to flow in the first pipeline 51 toward the charging port 9. After the cooling medium is delivered to the charging port 9, the charging port 9 is cooled. At the same time, the cooling medium will continue to flow into the second pipeline 52 until it flows back into the cooling source 4 through the second pipeline 52. In the process of continuous flow through the second pipeline 52, the cooling medium is cooled to prevent the cooling medium in the cooling source 4 from heating up too quickly, resulting in reduced cooling efficiency.

[0045] The heat generated by the charging cable 8 in the electric vehicle is utilized through the temperature difference power generation module 1, thereby improving the efficiency and utilization rate of energy use, avoiding directly using the power of the battery 10 to generate electricity, which further consumes its own power and reduces the energy utilization rate.

[0046] The charging port 9 is cooled by a cooling medium so that the ambient temperature of the charging port 9 is continuously maintained at an optimal constant temperature state, thereby improving the charging efficiency of the charging port 9 and avoiding a decrease in charging efficiency after the temperature of the charging port 9 rises, which leads to a decrease in the power transmission conversion rate.

[0047] When the cooling medium flows through the charging port 9, the cooling medium will exchange heat with the charging port 9, taking away the heat of the charging port 9. The heat continues to flow with the cooling medium. The heat generated by the charging port 9 can also be used to heat the battery 10 when the ambient temperature is low, thereby improving the utilization rate of the heat of the charging port 9.

[0048] Among them, the charging cable 8 is a high-voltage cable fixedly installed on the electric vehicle, connecting the vehicle charging port 9, the on-board charger, and the battery 10. The cooling medium can preferably be a cooling liquid. The cooling source 4 can preferably be a cooling pot containing coolant. A wire is connected between the temperature difference power generation module 1 and the drive pump 3 to achieve electrical connection.

[0049] In some optional embodiments, see Figure 1-2 As shown, in the fast and slow charging cable-assisted autonomous cooling system, a cooling medium is stored in the cooling source 4, a first pipeline 51 is connected between the cooling source 4 and the charging port 9 to transport the cooling medium to the charging port 9, and a second pipeline 52 is connected between the charging port 9 and the cooling source 4 to allow the cooling medium passing through the charging port 9 to flow back to the cooling source 4.

[0050] In this embodiment, the second pipeline 52 includes a first branch 521 and a second branch 522 that are interconnected.

[0051] One end of the first branch 521 away from the second branch 522 is connected to the charging port 9 , and one end of the second branch 522 away from the first branch 521 is connected to the cooling source 4 .

[0052] In this embodiment, the driving pump 3 is provided on the first pipeline 51 .

[0053] In this embodiment, a first heat sink 111 is provided on the second pipeline 52 .

[0054] A BMS is provided in the battery 10 . When the BMS determines that the vehicle is not connected to a charging device, it controls the driving pump 3 and the three-way valve 6 to stop working.

[0055] When the vehicle is charging, if the temperature of the BMS is higher than the specified threshold temperature of the charging environment required for the battery 10, the BMS does not need to be heated. The voltage and current generated by the thermoelectric power generation module 1 start the drive pump 3, so that the coolant in the cooling source 4 is transported to the heating area of ​​the charging port 9 through the first pipeline 51, taking away the heat of the charging port 9 to generate heat exchange, and then flows into the first branch 521 of the second pipeline 52, and then is transported back to the cooling source 4 through the second branch 522.

[0056] When the cooling medium flows in the second pipeline 52, the BMS controls the three-way valve 6 to switch, so that the third pipeline 53 is closed and connected to the first branch 521 and the second branch 522, ensuring that the cooling medium only flows in the second pipeline 52, and a first heat sink 111 is installed on the second pipeline 52. After the cooling medium takes away heat through the charging port 9, when it flows in the second pipeline 52, in addition to cooling the cooling medium through heat exchange with the air, the first heat sink 111 can also accelerate the heat dissipation of the cooling medium in the second pipeline 52, so that the cooling medium is cooled faster, avoiding excessive temperature rise of the cooling medium in the cooling source 4, resulting in reduced cooling efficiency of the charging port 9.

[0057] In some optional embodiments, see Figure 1-2 As shown, the fast and slow charging cable assisted autonomous cooling system also includes:

[0058] The battery 10 is connected to the charging port 9 via a charging cable 8. A third pipeline 53 is connected between the battery 10 and the second pipeline 52 to transport the cooling medium into the battery 10. A fourth pipeline 54 is connected between the battery 10 and the cooling source 4 to transport the cooling medium to the cooling source 4.

[0059] In this embodiment, a second heat sink 112 is provided in the battery 10 , and one end of the third pipe 53 and the fourth pipe 54 located in the battery 10 is connected to and communicates with the second heat sink 112 .

[0060] When the vehicle is charging, if the temperature of the BMS is lower than the specified threshold temperature of the charging environment required for the battery 10, the BMS needs to heat to maintain the activity of the battery cell. The voltage and current generated by the thermoelectric power generation module 1 start the drive pump 3, so that the coolant in the cooling source 4 is transported to the heating area of ​​the charging port 9 through the first pipeline 51, taking away the heat of the charging port 9 to generate heat exchange, and then flows into the second pipeline 52. At the same time, the three-way valve 6 switches to open the third pipeline 53 so that the third pipeline 53 is connected to the first branch 521, and closes the second branch 522 to prevent the cooling medium from flowing into the cooling source 4 through the second branch 522.

[0061] After the cooling medium in the first branch 521 flows to the third pipe 53, it enters the battery 10, and the cooling medium will pass through the second heat sink 112 on the third pipe 53, so that the heat of the charging port 9 carried by the cooling medium is exchanged to the space of the battery 10, thereby auxiliary heating the battery 10, improving the activity of the battery cell, and maintaining the activity of the battery cell. The cooling medium will also be further cooled by the heat dissipation of the second heat sink 112 and the low temperature inside the battery 10, so that the cooled cooling medium will continue to flow to the fourth pipe 54, and then flow back to the cooling source 4.

[0062] As charging progresses, when the temperature of the BMS gradually exceeds the specified threshold temperature of the charging environment required by the battery 10, the BMS does not need to be heated at this time, and then the opening of the third pipeline 53 is closed by the three-way valve 6, and the second pipeline 52 is fully opened, so that the cooling medium continues to flow back to the cooling source 4.

[0063] In some optional embodiments, see Figure 1-2 As shown, in the fast and slow charging cable-assisted autonomous cooling system, the first branch 521, the second branch 522 and the third pipe 53 are connected through a three-way valve 6. When the BMS needs heating, the three-way valve 6 is switched to connect the first branch 521 with the third pipe 53, and the second branch 522 is closed, so that the cooling medium in the second pipe 52 can only flow into the third pipe 53, so that the cooling medium carries the heat of the charging port 9 and flows into the battery 10 to heat the battery cell. When the BMS does not need heating, the three-way valve 6 is switched to close the third pipe 53, so that the first branch 521 is connected with the second branch 522, so that the cooling medium flows directly back to the cooling source 4 after passing through the charging port 9.

[0064] A wire is connected between the three-way valve 6 and the battery 10 to achieve electrical connection.

[0065] See also Figure 1-3 As shown, the second aspect of the embodiment of the present application provides a method for using a fast and slow charging cable assisted autonomous cooling system, comprising the following steps:

[0066] Step 1: When the charging port 9 is charging, the charging cable 8 heats up, and the temperature difference between the charging cable 8 and the external environment is used by the thermoelectric power generation module 1 to generate electricity and start the driving pump 3;

[0067] Step 2: The driving pump 3 drives the cooling medium in the cooling source 4 to flow to the charging port 9 through the first pipeline 51. The cooling medium exchanges heat with the charging port 9 to reduce the charging temperature of the charging port 9.

[0068] Step 3: The cooling medium after heat exchange flows back to the cooling source 4 through the second pipe 52 and the first heat sink 111 and then circulates to perform heat exchange on the charging port 9 .

[0069] When the vehicle is charging, if the temperature of the BMS is higher than the specified threshold temperature of the charging environment required for the battery 10, the BMS does not need to be heated. The voltage and current generated by the thermoelectric power generation module 1 start the drive pump 3, so that the coolant in the cooling source 4 is transported to the heating area of ​​the charging port 9 through the first pipeline 51, taking away the heat of the charging port 9 to generate heat exchange, and then flows into the second pipeline 52, and is transported back to the cooling source 4 along the path of the second pipeline 52.

[0070] When the cooling medium flows in the second pipeline 52, the BMS controls the three-way valve 6 to switch, so that the third pipeline 53 is closed, and the first branch 521 and the second branch 522 are connected, ensuring that the cooling medium only flows in the second pipeline 52, and a first heat sink 111 is installed on the second pipeline 52. After the cooling medium takes away heat through the charging port 9, when it flows in the second pipeline 52, in addition to cooling the cooling medium through heat exchange with the air, the first heat sink 111 can also accelerate the heat dissipation of the cooling medium in the second pipeline 52, so that the cooling medium is cooled faster, avoiding excessive temperature rise of the cooling medium in the cooling source 4, which leads to reduced cooling efficiency of the charging port 9.

[0071] In some optional embodiments, see Figure 1-3 As shown, the method for using the fast and slow charging cable assisted autonomous cooling system also includes:

[0072] When the charging temperature of the battery 10 does not reach the set temperature threshold, the three-way valve 6 is switched to connect the first branch 521 with the third pipe 53;

[0073] The first branch 521 transfers the cooling medium heated by heat exchange at the charging port 9 through the third pipe 53 into the second heat sink 112. The second heat sink 112 exchanges heat with the battery 10 to adjust the charging temperature of the battery 10.

[0074] The cooling medium flowing out of the second heat sink 112 flows back into the cooling source 4 through the fourth pipe 54 .

[0075] When the vehicle is charging, if the temperature of the BMS is lower than the threshold temperature set for the charging environment required by the battery 10, the BMS needs to heat the battery cells to maintain their activity. The three-way valve 6 is switched to connect the first branch 521 with the third pipe 53 and close the second branch 522. The voltage and current generated by the thermoelectric power generation module 1 provide energy to the drive pump 3, so that the coolant in the cooling source 4 is transported through the first pipe 51 to the heat generation area of ​​the charging port 9, removing heat from the charging port 9 to generate heat exchange. The coolant then flows into the first branch 521 and then flows into the third pipe 53 to enter the battery 10. The cooling medium passes through the second heat sink 112 on the third pipe 53, and the heat from the charging port 9 carried by the cooling medium is exchanged into the space of the battery 10, providing auxiliary heating inside the battery 10, improving the activity of the battery cells and maintaining the activity of the battery cells. The cooling medium is further cooled by the heat dissipated by the second heat sink 112 and the low temperature inside the battery 10. The cooled cooling medium continues to flow into the fourth pipe 54 and then returns to the cooling source 4.

[0076] Among them, as charging progresses, when the temperature of the BMS gradually exceeds the specified threshold temperature of the charging environment required by the battery 10, the BMS does not need to be heated at this time, and then by switching the three-way valve 6, the third pipeline 53 is closed, the first branch 521 and the second branch 522 are connected, and the cooling medium continues to flow back to the cooling source 4 through the second pipeline 52.

[0077] The working principle and process of this application:

[0078] When the vehicle is charging, if the temperature of the BMS is higher than the specified threshold temperature of the charging environment required for the battery 10, the BMS does not need to be heated. The voltage and current generated by the thermoelectric power generation module 1 drive the pump 3, so that the coolant in the cooling source 4 is transported to the heating area of ​​the charging port 9 through the first pipeline 51, taking away the heat of the charging port 9 to generate heat exchange, and then flows into the second pipeline 52, and is transported back to the cooling source 4 along the path of the second pipeline 52.

[0079] When the cooling medium flows in the second pipeline 52, the BMS controls the three-way valve 6 to switch, so that the third pipeline 53 is closed, and the first branch 521 and the second branch 522 are connected, ensuring that the cooling medium only flows in the second pipeline 52, and a first heat sink 111 is installed on the second pipeline 52. After the cooling medium takes away heat through the charging port 9, when it flows in the second pipeline 52, in addition to cooling the cooling medium through heat exchange with the air, the first heat sink 111 can also accelerate the heat dissipation of the cooling medium in the second pipeline 52, so that the cooling medium is cooled faster, avoiding excessive temperature rise of the cooling medium in the cooling source 4, which leads to reduced cooling efficiency of the charging port 9.

[0080] When the vehicle is charging, if the temperature of the BMS is lower than the threshold temperature set for the charging environment required by the battery 10, the BMS needs to heat the battery cells to maintain their activity. The three-way valve 6 is switched to connect the first branch 521 with the third pipe 53 and close the second branch 522. The voltage and current generated by the thermoelectric power generation module 1 provide energy to the drive pump 3, so that the coolant in the cooling source 4 is transported through the first pipe 51 to the heat generation area of ​​the charging port 9, removing heat from the charging port 9 to generate heat exchange. The coolant then flows into the first branch 521 and then flows into the third pipe 53 to enter the battery 10. The cooling medium passes through the second heat sink 112 on the third pipe 53, and the heat from the charging port 9 carried by the cooling medium is exchanged into the space of the battery 10, providing auxiliary heating inside the battery 10, improving the activity of the battery cells and maintaining the activity of the battery cells. The cooling medium is further cooled by the heat dissipated by the second heat sink 112 and the low temperature inside the battery 10. The cooled cooling medium continues to flow into the fourth pipe 54 and then returns to the cooling source 4.

[0081] As charging progresses, when the temperature of the BMS gradually exceeds the specified threshold temperature of the charging environment required by the battery 10, the BMS does not need to be heated at this time. Then, by switching the three-way valve 6, the third pipeline 53 is closed, and the first branch 521 and the second branch 522 are connected, so that the cooling medium continues to flow back to the cooling source 4 through the second pipeline 52.

[0082] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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 a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0083] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0084] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A fast and slow charging cable assisted autonomous cooling system, characterized in that: include: A charging port unit, the charging port unit comprising a charging port (9), a cooling source (4), and a driving pump (3) for driving a cooling medium of the cooling source (4) to cool the charging port (9); A thermoelectric power generation unit, comprising a charging cable (8) connected to a charging port (9) and a thermoelectric power generation module (1) disposed on the charging cable (8), wherein the thermoelectric power generation module (1) is electrically connected to a driving pump (3); A cooling medium is stored in the cooling source (4), and a first pipeline (51) is connected between the cooling source (4) and the charging port (9) to transport the cooling medium to the charging port (9); A second pipeline (52) is connected between the charging port (9) and the cooling source (4) to allow the cooling medium passing through the charging port (9) to flow back into the cooling source (4); The second pipeline (52) comprises a first branch (521) and a second branch (522) that are interconnected; One end of the first branch (521) away from the second branch (522) is connected to the charging port (9), and one end of the second branch (522) away from the first branch (521) is connected to the cooling source (4); Also includes A battery (10), wherein the battery (10) is connected to the charging port (9) via a charging cable (8); A third pipeline (53) is connected between the battery (10) and the second pipeline (52) for transporting the cooling medium into the battery (10); A fourth pipeline (54) is connected between the battery (10) and the cooling source (4) for transporting the cooling medium to the cooling source (4).

2. The fast and slow charging cable assisted autonomous cooling system according to claim 1, characterized in that: The driving pump (3) is arranged on the first pipeline (51).

3. The fast and slow charging cable assisted autonomous cooling system according to claim 1, characterized in that: A first heat sink (111) is provided on the second branch (522) of the second pipeline (52).

4. The fast and slow charging cable assisted autonomous cooling system according to claim 1, characterized in that: A second heat sink (112) is provided in the battery (10), and one end of the third pipe (53) and the fourth pipe (54) located in the battery (10) is connected to and communicates with the second heat sink (112).

5. The fast and slow charging cable assisted autonomous cooling system according to claim 4, characterized in that: The first branch (521), the second branch (522) and the third pipeline (53) are connected via a three-way valve (6).

6. A method for using a fast or slow charging cable assisted autonomous cooling system, characterized in that: The method uses the fast-slow charging cable-assisted autonomous cooling system according to any one of claims 1 to 5, comprising: When the charging port (9) is charging, the charging cable (8) heats up, and the temperature difference between the charging cable (8) and the external environment is used by the temperature difference power generation module (1) to generate electricity and start the driving pump (3); The driving pump (3) drives the cooling medium in the cooling source (4) to flow to the charging port (9) through the first pipeline (51), and the cooling medium and the charging port (9) exchange heat to reduce the charging temperature of the charging port (9); The cooling medium after heat exchange flows back to the cooling source (4) through the second pipeline (52) and the first heat sink (111), and then circulates to perform heat exchange with the charging port (9).

7. The method for using the fast and slow charging cable assisted autonomous cooling system according to claim 6, characterized in that: The method further comprises: When the charging temperature of the battery (10) does not reach the set temperature threshold, the three-way valve (6) is switched to connect the first branch (521) with the third pipeline (53); The first branch (521) passes the cooling medium heated after heat exchange at the charging port (9) into the second heat sink (112) through the third pipe (53), and the second heat sink (112) performs heat exchange with the battery (10) to adjust the charging temperature of the battery (10); The cooling medium flowing out of the second heat sink (112) flows back into the cooling source (4) through the fourth pipeline (54).

Images