Charging cable, thermal management system and method thereof, storage medium and electronic equipment

Abstract

The invention discloses a charging cable, a thermal management system and method thereof, a storage medium and electronic equipment. Wherein one end of the charging cable is connected with the charging pile, and the other end of the charging cable is connected with the target charging gun; an outer protection layer, a first liquid heat conduction layer, a heat insulation layer, a second liquid heat conduction layer and a battery core layer which are attached to one another are sequentially arranged in the radial direction of the charging cable from outside to inside, the first liquid heat conduction layer is used for conducting heat and increasing temperature for the outer protection layer, and the second liquid heat conduction layer is used for dissipating heat and reducing temperature for the battery core layer. According to the invention, the technical problems of high difficulty in thermal management of the charging cable and poor charging experience of a user in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle charging, in particular to a charging cable, a heat management system and method thereof, a storage medium and an electronic device. BACKGROUND

[0002] With the increase in the number of new energy vehicles, the use frequency of charging piles as supporting facilities is also increasing, and the heat management technology of charging cables on charging piles is facing severe challenges. In high-latitude areas, the low temperature in winter hardens the charging cable of the charging pile, increasing the difficulty of user operation, making it difficult for users with less strength, such as the elderly and women, to normally pull out or plug in the charging gun, and seriously affecting the user charging experience. The high temperature generated during high-power charging also threatens the charging cable, which can cause the performance of the battery layer to decline, even damage, and thus affect the long-term stable operation of the charging pile. Therefore, it is difficult to manage the heat of the charging cable in the related art, and the user's charging experience is poor.

[0003] At present, no effective solution has been proposed for the above problems. SUMMARY

[0004] The embodiments of the present application provide a charging cable, a heat management system and method thereof, a storage medium and an electronic device to at least solve the technical problems of difficulty in heat management of the charging cable in the related art and poor user charging experience.

[0005] According to an aspect of the embodiments of the present application, a charging cable is provided, one end of the charging cable is connected with a charging pile, and the other end of the charging cable is connected with a target charging gun; in the radial direction of the charging cable, an outer protective layer, a first liquid heat conduction layer, a heat insulation layer, a second liquid heat conduction layer and a battery layer are sequentially arranged from the outside to the inside and are in close contact with each other, wherein the first liquid heat conduction layer is used for heat conduction and heating of the outer protective layer, and the second liquid heat conduction layer is used for heat dissipation and cooling of the battery layer.

[0006] According to another aspect of the embodiments of the present application, a heat management system of a charging cable is also provided, applied to the charging cable, and includes: a first liquid heat conduction pipeline arranged in the first liquid heat conduction layer of the charging cable; a second liquid heat conduction pipeline arranged in the second liquid heat conduction layer of the charging cable; a four-way heat exchanger, a first port of the four-way heat exchanger is connected with a first port of the first liquid heat conduction pipeline, a second port of the four-way heat exchanger is connected with a second port of the first liquid heat conduction pipeline, a third port of the four-way heat exchanger is connected with a first port of the second liquid heat conduction pipeline, and a fourth port of the four-way heat exchanger is connected with a second port of the second liquid heat conduction pipeline, wherein, in a case where the four-way heat exchanger is in a first working state, the first port of the four-way heat exchanger and the second port of the four-way heat exchanger are communicated, the third port of the four-way heat exchanger and the fourth port of the four-way heat exchanger are communicated, the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in an unconnected state, heat conduction and heating of the outer protective layer of the charging cable are performed, in a case where the four-way heat exchanger is in a second working state, the first port of the four-way heat exchanger and the third port of the four-way heat exchanger are communicated, the second port of the four-way heat exchanger and the fourth port of the four-way heat exchanger are communicated, the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a connected state, heat dissipation and cooling of the battery cell layer of the charging cable are performed; and a controller connected with the four-way heat exchanger, configured to control the working state of the four-way heat exchanger based on the heat management requirement of the charging cable.

[0007] In the embodiments of the present application, the first liquid heat conduction pipeline is provided with a heater and a first water pump, the heater is configured to heat and warm the liquid in the first liquid heat conduction pipeline, and the first water pump is configured to control the flow of the liquid in the first liquid heat conduction pipeline; the second liquid heat conduction pipeline is provided with a refrigerator and a second water pump, the refrigerator is configured to cool and cool the liquid in the second liquid heat conduction pipeline, and the second water pump is configured to control the flow of the liquid in the second liquid heat conduction pipeline; and the controller is connected with the heater, the first water pump, the refrigerator and the second water pump, and is configured to control the running state of the heater, the first water pump, the refrigerator and / or the second water pump based on the heat management requirement, the running state including one of the following: an off state, an on state and a power state in the on state.

[0008] According to another aspect of the embodiments of the present application, a heat management method of a charging cable is also provided, applied to the heat management system, and including: obtaining a heat management requirement of the charging cable; and controlling the working state of the four-way heat exchanger in the heat management system based on the heat management requirement, to adjust the connected state of the first liquid heat conduction pipeline and the second liquid heat conduction pipeline.

[0009] In this embodiment of the invention, obtaining the thermal management requirements of the charging cable includes: obtaining the ambient temperature of the environment where the charging cable is located and the usage status of the target charging gun connected to the charging cable; and determining the thermal management requirements based on the ambient temperature and / or usage status.

[0010] In this embodiment of the invention, thermal management requirements are determined based on ambient temperature and / or usage status, including: when the ambient temperature is less than a preset temperature threshold and the target charging gun is in an unused state, the thermal management requirement is to conduct heat to raise the temperature of the outer sheath of the charging cable; when the target charging gun is in a used state, the thermal management requirement is to dissipate heat to lower the temperature of the battery cell layer of the charging cable.

[0011] In this embodiment of the invention, based on thermal management requirements, the operating state of the four-way heat exchanger in the thermal management system is controlled as follows: when the thermal management requirement is to conduct heat to raise the temperature of the outer sheath of the charging cable, the four-way heat exchanger is controlled to be in a first operating state, so that the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a non-connected state, and the heater in the first liquid heat conduction pipeline is controlled to be in an on state; when the thermal management requirement is to dissipate heat to lower the temperature of the battery cell layer of the charging cable, the four-way heat exchanger is controlled to be in a second operating state, so that the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a connected state, and the heater in the first liquid heat conduction pipeline is controlled to be in a closed state.

[0012] In this embodiment of the invention, when the heater in the first liquid heat conduction pipeline is controlled to be in the on state, the method further includes: obtaining the heater power state of the heater; determining the first operating state of the cooler in the second liquid heat conduction pipeline based on the heater power state, wherein the first operating state includes one of the following: off state, on state, and first power state in the on state; and controlling the cooler based on the first operating state.

[0013] In this embodiment of the invention, when the heater in the first liquid heat conduction pipeline is controlled to be in a closed state, the method further includes: obtaining the charging gun power state of the target charging gun; determining the second operating state of the cooler in the second liquid heat conduction pipeline based on the charging gun power state, wherein the second operating state includes one of the following: closed state, open state, and second power state in the open state; and controlling the cooler based on the second operating state.

[0014] In this embodiment of the invention, the method further includes: acquiring first temperature data collected by a first temperature sensor, second temperature data collected by a second temperature sensor, first water pump status data collected by a first water pump sensor, and second water pump status data collected by a second water pump sensor in the thermal management system, wherein the first temperature sensor is used to collect the liquid temperature in the first liquid heat conduction pipeline, and the second temperature sensor is used to collect the liquid temperature in the second liquid heat conduction pipeline; based on thermal management requirements, the first temperature data, the second temperature data, the first water pump monitoring data, and the second water pump monitoring data, controlling the working state of the four-way heat exchanger, and controlling the operating state of the heater, the first water pump, the cooler, and / or the second water pump in the thermal management system, the operating state including one of the following: off state, on state, and power state in the on state.

[0015] According to another aspect of the embodiments of this application, an electronic device is also provided, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of this application when it runs.

[0016] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of this application.

[0017] According to another aspect of the embodiments of this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the methods of various embodiments of this application.

[0018] According to another aspect of the embodiments of this application, a computer program product is also provided, including a non-volatile computer-readable storage medium storing a computer program, which, when executed by a processor, implements the methods in various embodiments of this application.

[0019] According to another aspect of the embodiments of this application, a computer program is also provided, which, when executed by a processor, implements the methods of the various embodiments of this application.

[0020] In this embodiment of the invention, one end of the charging cable is connected to a charging pile, and the other end is connected to a target charging gun. In the radial direction of the charging cable, from the outside to the inside, there are sequentially arranged an outer sheath, a first liquid thermally conductive layer, a heat insulation layer, a second liquid thermally conductive layer, and a battery cell layer, all in close contact with each other. The first liquid thermally conductive layer is used to conduct heat to the outer sheath and raise its temperature, while the second liquid thermally conductive layer is used to dissipate heat to the battery cell layer and lower its temperature. In the charging cable proposed in this application, the first liquid thermally conductive layer is disposed inside the outer sheath of the charging cable. By heating the liquid in the first liquid thermally conductive layer, heat can be transferred to the outer sheath, thereby preventing the charging cable from hardening in cold weather and maintaining the flexibility and ease of operation of the charging cable. The second liquid thermally conductive layer is disposed outside the battery cell layer and can dissipate heat to the battery cell layer, extending the cable's service life. The heat insulation layer disposed between the first and second liquid thermally conductive layers can reduce the natural conduction of heat in the radial direction of the charging cable. By incorporating a first and a second liquid thermally conductive layer, the thermal management requirements of the charging cable can be met under different temperature conditions and usage scenarios. In cold environments or when the charging gun is not in use, the first liquid thermally conductive layer can be activated to heat and insulate the outer sheath of the charging cable. During charging gun use, the second liquid thermally conductive layer provides effective heat dissipation and cooling for the battery cell layer. In cold winters or high-power charging scenarios in summer, the charging cable maintains good flexibility and operability, avoiding charging difficulties caused by temperature, improving the user's charging experience, and thus solving the technical problems of difficult thermal management of charging cables and poor user charging experience in related technologies. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the radial cross-section of a charging cable according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of a thermal management system for a charging cable according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of an optional thermal management system for a charging cable according to an embodiment of the present invention;

[0025] Figure 4 This is a flowchart of a thermal management method for a charging cable according to an embodiment of the present invention;

[0026] Figure 5This is a schematic diagram of the thermal management process of an optional charging cable according to an embodiment of the present invention. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] According to an embodiment of this application, a charging cable is provided, one end of which is connected to a charging pile, and the other end of which is connected to a target charging gun.

[0030] The aforementioned charging pile refers to a device that provides power replenishment for new energy vehicles, and can be installed in public parking lots, residential areas, commercial areas, or highway service areas, etc. Charging piles can be classified into AC charging piles and DC charging piles based on their power supply method. In this application, the charging pile serves as one end of a charging cable, which can be connected to the target charging gun to charge the new energy vehicle.

[0031] The aforementioned target charging gun can refer to a charging device used in conjunction with a charging socket for new energy vehicles, located at the other end of the charging cable.

[0032] Figure 1 This is a schematic diagram of the radial cross-section of a charging cable according to this application, as shown below. Figure 1 As shown, in the radial direction of the charging cable, from the outside to the inside, there are an outer sheath 101, a first liquid thermal conductive layer 102, a thermal insulation layer 103, a second liquid thermal conductive layer 104, and a battery cell layer 105 that are attached to each other.

[0033] The first liquid thermal conductive layer is used to conduct heat and raise the temperature of the outer sheath, while the second liquid thermal conductive layer is used to dissipate heat and lower the temperature of the battery cell layer.

[0034] The aforementioned outer sheath can refer to the protective layer on the outside of the charging cable. It can be made of materials with strong weather resistance and high mechanical strength, such as rubber or polyvinyl chloride, and can be used to protect the internal structure of the charging cable.

[0035] The aforementioned first liquid thermal conductive layer can refer to a liquid thermal conductive layer disposed inside the outer sheath of the charging cable. It can use a liquid with good thermal conductivity that does not easily freeze at low temperatures as the thermal conductive medium, such as silicone oil or thermal conductive fluid. The liquid in the first liquid thermal conductive layer is heated by a heater, causing the liquid to flow and transfer heat to the outer sheath, thereby preventing the charging cable from hardening in cold weather and maintaining the cable's flexibility and ease of operation.

[0036] The aforementioned heat insulation layer can refer to a structural layer located between the first liquid heat-conducting layer and the second liquid heat-conducting layer, used to reduce the natural conduction of heat in the radial direction of the charging cable. The heat insulation layer can use materials with good heat insulation properties, such as polyurethane foam, glass wool, etc.

[0037] The aforementioned second liquid thermal conductive layer refers to the liquid thermal conductive layer on the outer side of the battery cell layer, which can dissipate heat from the battery cell layer and extend the service life of the cable. The liquid in the second liquid thermal conductive layer can also be cooled by a cooler to achieve a heat dissipation and temperature reduction effect.

[0038] The aforementioned battery cell layer refers to the conductive part inside the charging cable, which can be made of multiple strands of copper or aluminum wire braided together to transmit electricity. During charging, the battery cell layer generates heat due to the current passing through it. The second liquid thermal conductive layer can be used to solve the heat dissipation problem of the battery cell layer, ensuring the safety and efficiency of the charging process.

[0039] In one optional embodiment, the charging cable proposed in this application may, in the radial direction, be sequentially provided with an outer sheath, a first liquid thermally conductive layer, a thermal insulation layer, a second liquid thermally conductive layer, and a battery cell layer from the outside to the inside. This multi-layered composite structure design can fully utilize the characteristics of each layer, achieving effective temperature management of the charging cable under different temperature conditions. The first and second liquid thermally conductive layers can each have independent piping systems. The first liquid thermally conductive layer is located inside the outer sheath of the charging cable and can use a liquid with good thermal conductivity that does not easily freeze at low temperatures as the thermal medium. By heating the liquid in the first liquid thermally conductive layer, the liquid flows and transfers heat to the outer sheath, thereby preventing the charging cable from hardening in cold weather and maintaining the flexibility and ease of operation of the charging cable. The thermal insulation layer located between the first and second liquid thermally conductive layers can be used to reduce the natural conduction of heat in the radial direction of the charging cable. The second liquid thermal conductive layer is placed on the outside of the battery cell layer, which can dissipate heat for the battery cell layer and extend the service life of the cable. The liquid in the second liquid thermal conductive layer can also be cooled by a cooler to achieve the effect of heat dissipation and temperature reduction.

[0040] In this embodiment of the invention, one end of the charging cable is connected to a charging pile, and the other end is connected to a target charging gun. In the radial direction of the charging cable, from the outside to the inside, there are sequentially arranged an outer sheath, a first liquid thermally conductive layer, a heat insulation layer, a second liquid thermally conductive layer, and a battery cell layer, all in close contact with each other. The first liquid thermally conductive layer is used to conduct heat to the outer sheath and raise its temperature, while the second liquid thermally conductive layer is used to dissipate heat to the battery cell layer and lower its temperature. In the charging cable proposed in this application, the first liquid thermally conductive layer is disposed inside the outer sheath of the charging cable. By heating the liquid in the first liquid thermally conductive layer, heat can be transferred to the outer sheath, thereby preventing the charging cable from hardening in cold weather and maintaining the flexibility and ease of operation of the charging cable. The second liquid thermally conductive layer is disposed outside the battery cell layer and can dissipate heat to the battery cell layer, extending the cable's service life. The heat insulation layer disposed between the first and second liquid thermally conductive layers can reduce the natural conduction of heat in the radial direction of the charging cable. By incorporating a first and a second liquid thermally conductive layer, the thermal management requirements of the charging cable can be met under different temperature conditions and usage scenarios. In cold environments or when the charging gun is not in use, the first liquid thermally conductive layer can be activated to heat and insulate the outer sheath of the charging cable. During charging gun use, the second liquid thermally conductive layer provides effective heat dissipation and cooling for the battery cell layer. In cold winters or high-power charging scenarios in summer, the charging cable maintains good flexibility and operability, avoiding charging difficulties caused by temperature, improving the user's charging experience, and thus solving the technical problems of difficult thermal management of charging cables and poor user charging experience in related technologies.

[0041] According to another aspect of the embodiments of this application, a thermal management system for a charging cable is also provided, which is applied to the charging cable described above. Figure 2 This is a schematic diagram of a thermal management system for a charging cable according to this application, as shown below. Figure 2 As shown, the thermal management system of the charging cable includes: a first liquid heat conduction pipe 201, a second liquid heat conduction pipe 202, a four-way heat exchanger 203, and a controller 204.

[0042] The first liquid heat conduction pipe 201 is disposed in the first liquid heat conduction layer of the charging cable.

[0043] The aforementioned first liquid heat conduction pipeline can refer to a liquid heat conduction pipeline located in the first liquid heat conduction layer. The heat conduction pipeline can be filled with a specific heat conduction liquid. The heat conduction liquid can be heated by a heater and flows through the pipeline to transfer heat to the outer protective layer to prevent the outer protective layer from hardening due to low temperature. The design of the first liquid heat conduction pipeline can take into account the efficient circulation of the liquid and the uniform distribution of heat.

[0044] The second liquid heat conduction pipe 202 is installed in the second liquid heat conduction layer of the charging cable.

[0045] The aforementioned second liquid heat conduction pipeline refers to a liquid heat conduction pipeline located within the second liquid heat conduction layer, which can be used to dissipate heat and cool the battery cell layer. The liquid in the second liquid heat conduction pipeline can be cooled by a cooler and circulates to absorb the heat generated by the battery cell layer, ensuring that the battery cell layer operates within a safe temperature range.

[0046] A four-way heat exchanger 203 has its first port 2031 connected to the first port of a first liquid heat conduction pipe, its second port 2032 connected to the second port of the first liquid heat conduction pipe, its third port 2033 connected to the first port of a second liquid heat conduction pipe, and its fourth port 2034 connected to the second port of the second liquid heat conduction pipe. When the four-way heat exchanger is in its first operating state, the first port and the second port are connected... In the first working state, the third and fourth ports of the four-way heat exchanger are connected, so that the first liquid heat conduction pipe and the second liquid heat conduction pipe are not connected, in order to conduct heat and raise the temperature of the outer sheath of the charging cable. In the second working state, the first and third ports of the four-way heat exchanger are connected, and the second and fourth ports of the four-way heat exchanger are connected, so that the first and second liquid heat conduction pipes are connected, in order to dissipate heat and lower the temperature of the battery cell layer of the charging cable.

[0047] The aforementioned four-way heat exchanger can refer to a fluid control device with four ports, used to control and regulate heat exchange between the first and second liquid heat conduction pipes. By altering the channels of the internal fluid, the four-way heat exchanger achieves heat isolation or exchange, serving as an important component for dynamic thermal management.

[0048] The aforementioned first operating state can refer to a configuration where the internal fluid channels of the four-way heat exchanger are connected at both ends of the first liquid heat-conducting pipe, and the two ends of the second liquid heat-conducting pipe are also connected, while the first and second liquid heat-conducting pipes remain isolated from each other. In this first operating state, the heating liquid in the first liquid heat-conducting pipe circulates within the pipe, transferring heat to the outer protective layer to increase its temperature and prevent low-temperature hardening.

[0049] The aforementioned second operating state can refer to a state where the internal fluid channels of the four-way heat exchanger are configured to connect the first liquid heat-conducting pipe and the second liquid heat-conducting pipe, allowing heat exchange between the two pipes. During charging, when the battery cell layer generates excessive heat, the heat exchange in the second operating state can help dissipate heat and prevent the battery cell layer from overheating.

[0050] The controller 204, connected to the four-way heat exchanger, is used to control the operating status of the four-way heat exchanger based on the thermal management requirements of the charging cable.

[0051] The aforementioned thermal management requirements refer to the thermal management objectives of the charging cable determined based on factors such as the ambient temperature of the charging cable and the usage status of the target charging gun. Thermal management requirements may include rapid heating of the outer sheath of the charging line in low-temperature environments to maintain cable flexibility, or effective heat dissipation and cooling of the battery cell layer during high-current charging to protect the battery cell layer and extend the service life of the charging cable. These thermal management requirements can serve as conditions for the controller to determine the operating status of the four-way heat exchanger and the overall operating strategy of the thermal management system.

[0052] In one optional embodiment, a first liquid heat-conducting conduit is disposed under the outer sheath of the charging cable, and its interior may be filled with a heat-conducting liquid suitable for use in low-temperature environments, such as an aqueous solution of ethylene glycol. A second liquid heat-conducting conduit may be disposed between the battery cell layer and the insulation layer, and may be filled with a heat-conducting liquid. This conduit can be used to effectively dissipate heat around the battery cell layer, ensuring the temperature safety of the battery cell layer and preventing overheating of the battery cell layer, which would affect charging efficiency and cable life.

[0053] The four-way heat exchanger allows for switching between heat preservation and heat dissipation functions by changing the connection status of the first and second liquid heat conduction pipes. In the first operating state, the first and second liquid heat conduction pipes are not connected, ensuring the charging cable remains flexible in cold environments. In the second operating state, the first and second liquid heat conduction pipes are connected, allowing heat near the battery cell layer to be transferred to the external environment via the second and then the first liquid heat conduction pipes, achieving rapid heat dissipation from the battery cell layer. The controller can automatically adjust the operating state of the four-way heat exchanger based on real-time monitoring of the ambient temperature and the target charging gun's usage status. For example, when heating the outer sheath of the charging cable is required, the controller can place the four-way heat exchanger in the first operating state; when cooling the battery cell layer is required, the controller switches the four-way heat exchanger to the second operating state to rapidly reduce the battery cell layer temperature.

[0054] In the aforementioned configuration, the dual liquid heat-conducting pipelines, combined with a four-way heat exchanger, achieve precise temperature control of the charging cable's outer sheath and the battery cell layer. This allows for rapid response to environmental and usage changes, ensuring the charging cable remains at an optimal temperature. Intelligent control enables heating or cooling functions to be activated based on the actual needs of the charging cable, reducing energy consumption. Whether in cold winters or hot summers, the thermal management system proposed in this application ensures the charging cable's operability, preventing situations where the charging cable is difficult to retrieve in cold environments or where the battery cell overheats in the target charging gun's operating environment, leading to low charging efficiency. This significantly improves the user's charging experience.

[0055] In this embodiment of the invention, a first liquid heat conduction pipeline is provided with a heater and a first water pump. The heater is used to heat the liquid in the first liquid heat conduction pipeline, and the first water pump is used to control the flow of the liquid in the first liquid heat conduction pipeline. A second liquid heat conduction pipeline is provided with a cooler and a second water pump. The cooler is used to cool the liquid in the second liquid heat conduction pipeline, and the second water pump is used to control the flow of the liquid in the second liquid heat conduction pipeline. A controller is connected to the heater, the first water pump, the cooler, and the second water pump, and is used to control the operating state of the heater, the first water pump, the cooler, and / or the second water pump based on thermal management requirements. The operating state includes one of the following: off state, on state, and power state in the on state.

[0056] The aforementioned heater can refer to a device located in the first liquid heat conduction pipeline used to generate heat. In this application, the heater helps to increase the temperature of the liquid in the first liquid heat conduction pipeline, thereby transferring heat to the outer sheath of the charging cable, preventing the outer sheath from hardening in low-temperature environments, and maintaining the cable's flexibility and normal use. The operating status of the heater can be dynamically adjusted by the controller according to thermal management requirements to achieve better heating effect and energy efficiency.

[0057] The aforementioned first water pump can refer to a fluid transport device located in the first liquid heat conduction pipeline, which can drive the liquid flow within the first liquid heat conduction pipeline to ensure that the liquid can circulate evenly throughout the entire first liquid heat conduction layer after heating, thereby enhancing the heat conduction and insulation effects. The opening and closing of the first water pump, as well as its power status when it is on, can be controlled by a controller to ensure that the liquid flow meets the thermal management requirements.

[0058] The aforementioned cooler refers to a device installed in the second liquid heat conduction pipeline for cooling the liquid. When excessive heat exists near the battery cell layer of the charging cable, the cooler can cool the liquid in the second liquid heat conduction pipeline, thereby absorbing the heat from the battery cell layer, preventing overheating, extending the cable's lifespan, and improving safety. The cooler's operating status can be controlled by a controller to adapt to different heat dissipation requirements.

[0059] The aforementioned second water pump can refer to a fluid transport device located in the second liquid heat conduction pipeline. It can drive the liquid flow within the second liquid heat conduction pipeline to ensure that the liquid cooled by the refrigerator can circulate effectively, thereby achieving the purpose of heat dissipation and cooling of the battery cell layer. The operating status of the second water pump can be adjusted by the controller according to thermal management requirements.

[0060] The aforementioned operating status refers to the on / off status of the heater, the first water pump, the chiller, and the second water pump, as well as their power levels when they are on. Operating status includes whether the equipment is working and its efficiency settings, allowing the controller to make flexible adjustments to meet the different thermal management needs of the charging cables.

[0061] In one optional embodiment, in the first liquid heat conduction pipeline, the heater and the first water pump can cooperate. The heater can heat the liquid in the first liquid heat conduction pipeline to a predetermined temperature, and the first water pump can control the flow rate of the liquid to ensure that the heat is evenly distributed around the outer sheath, achieving rapid heating of the outer sheath. The cooler and the second water pump in the second liquid heat conduction pipeline can cool the liquid when the battery cell layer heats up during charging, and the second water pump can promote liquid circulation, quickly removing excess heat around the battery cell layer, achieving efficient heat dissipation of the battery cell layer. The controller can integrate various sensor data and preset strategies to monitor the ambient temperature and the usage status of the target charging gun, controlling the operating status of the heater, the first water pump, the cooler, and / or the second water pump. For example, when the ambient temperature is below a preset threshold and the target charging gun is idle, the controller can start the heater and the first water pump, entering a heating and heat preservation mode for the outer sheath; when the target charging gun is in use, the controller can control the cooler and the second water pump to dissipate heat and cool the battery cell layer, ensuring a safe and controllable charging process.

[0062] The above settings intelligently select between heat preservation and heat dissipation functions based on the different environments and usage conditions of the charging cable, avoiding the hardening problem of the charging cable at low temperatures and eliminating the risk of overheating of the battery cell layer during charging. By dynamically adjusting the power status of the heater and cooler, energy waste can be minimized while meeting thermal management requirements, thus reducing the operating costs of the charging station.

[0063] Figure 3 This is a schematic diagram of an optional thermal management system for a charging cable according to an embodiment of the present invention, such as... Figure 3 As shown, the thermal management system of the charging cable includes: a first liquid heat conduction pipe 201, a second liquid heat conduction pipe 202, and a four-way heat exchanger 203. The first liquid heat conduction pipe is equipped with a heater 301, a first water pump 302, a first temperature sensor 303, and a water tank 304; the second liquid heat conduction pipe is equipped with a cooler 305, a second water pump 306, and a second temperature sensor 307.

[0064] According to another aspect of the present invention, a thermal management method for a charging cable is also provided, applied to the aforementioned thermal management system. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowcharts, in some cases the steps shown or described may be executed in a different order than that shown here.

[0065] Figure 4 This is a flowchart of a thermal management method for a charging cable according to an embodiment of this application, such as... Figure 4 As shown, the method includes the following steps:

[0066] Step S402: Obtain the thermal management requirements of the charging cable.

[0067] Step S404: Based on thermal management requirements, control the working state of the four-way heat exchanger in the thermal management system to adjust the connection state of the first liquid heat conduction pipeline and the second liquid heat conduction pipeline.

[0068] In one optional embodiment, data from an ambient temperature sensor, a target charging gun usage status sensor, and a cable internal temperature sensor can be collected. For example, in cold weather and when the target charging gun is not in use, it can be identified that the charging cable is facing low-temperature hardening, and the thermal management requirement can be determined as needing to heat the outer sheath. During the use of the target charging gun, such as during high-power charging, if a high temperature of the battery cell layer is detected, the thermal management requirement can be determined as needing to dissipate heat and cool the battery cell layer. Then, based on the determined thermal management requirements, the operating state of the four-way heat exchanger can be adjusted to adapt to the required thermal management needs. When it is necessary to heat the outer sheath of the charging cable, the four-way heat exchanger can be placed in a first operating state to avoid heat exchange between the first liquid heat conduction pipe and the second liquid heat conduction pipe, ensuring that the heat generated by the heater is concentrated on the outer sheath, accelerating the heating of the outer sheath. When it is necessary to dissipate heat and cool down the battery cell layer, the four-way heat exchanger can be placed in the second working state, and the first liquid heat conduction pipe and the second liquid heat conduction pipe can be connected to form a heat exchange circuit. When the cooler is started, it can absorb heat from the battery cell layer and conduct it through the first liquid heat conduction pipe to the second liquid heat conduction circuit, and then release it into the external environment to achieve efficient heat dissipation.

[0069] In the aforementioned process, the thermal management method, through intelligent control, achieves intelligent adjustment of the charging cable temperature, ensuring rapid response under various thermal management scenarios and providing users with a good charging experience. Based on thermal management requirements, it can prevent the battery cell layer from overheating during high-power charging, reducing potential safety hazards and also helping to maintain the mechanical properties of the cable, extending its service life. The thermal management method automatically adapts to environmental changes and charging needs, ensuring the normal operation of the target charging gun and charging cable in both cold and hot environments, improving user satisfaction and experience during the charging process.

[0070] In this embodiment of the invention, obtaining the thermal management requirements of the charging cable includes: obtaining the ambient temperature of the environment where the charging cable is located and the usage status of the target charging gun connected to the charging cable; and determining the thermal management requirements based on the ambient temperature and / or usage status.

[0071] The ambient temperature mentioned above refers to the temperature of the external environment in which the charging cable is located, including the air temperature around the cable, the ground temperature, and the temperature of the area where the charging station is located. In cold seasons, the ambient temperature may drop below freezing, causing the outer sheath of the charging cable to harden and become difficult to handle. Ambient temperature monitoring can be performed using ambient temperature sensors installed on the charging station or charging cable. These sensors can measure the ambient temperature in real time or periodically and transmit the data to the controller, allowing the controller to adjust its thermal management strategy based on the current ambient temperature.

[0072] The aforementioned usage status can refer to whether the target charging gun is in use or not. Usage status can be detected through various sensors and switches, such as detecting the signal indicating contact between the target charging gun and the charging socket of a new energy vehicle. The physical connection status of the target charging gun and changes in current within the circuit can be monitored to determine whether the target charging gun is charging.

[0073] In one optional embodiment, an ambient temperature sensor can be used to continuously monitor temperature changes in the environment surrounding the charging cable. The temperature sensor can capture real-time temperature data. The usage status of the target charging gun connected to the charging cable can also be monitored. By using sensors on the charging gun or the built-in monitoring system of the charging station, it can be determined whether the target charging gun is charging and whether the battery cell temperature exceeds a safe range during charging. A suitable thermal management strategy can be formulated by comprehensively analyzing the data on ambient temperature and the usage status of the target charging gun. For example, in a low-temperature environment, if the target charging gun is not in use, the thermal management requirement can be determined to be heating the outer sheath to prevent cable stiffness; in a high-temperature environment, if the target charging gun is charging, such as performing high-power charging, the thermal management requirement can be determined to be cooling the battery cell layer to prevent overheating damage.

[0074] In the above process, by using ambient temperature and the target charging gun's usage status as input parameters, the thermal management requirements of the charging cable can be accurately determined, avoiding resource waste caused by blind operation. This enables the thermal management system to flexibly respond to different external environments and usage scenarios, ensuring that the charging cable operates within the ideal temperature range.

[0075] In this embodiment of the invention, thermal management requirements are determined based on ambient temperature and / or usage status, including: when the ambient temperature is less than a preset temperature threshold and the target charging gun is in an unused state, the thermal management requirement is to conduct heat to raise the temperature of the outer sheath of the charging cable; when the target charging gun is in a used state, the thermal management requirement is to dissipate heat to lower the temperature of the battery cell layer of the charging cable.

[0076] The aforementioned preset temperature threshold refers to a pre-defined ambient temperature limit, used to determine whether the ambient temperature has reached the level requiring thermal warming of the charging cable's outer sheath. The preset temperature threshold can be determined based on a comprehensive consideration of experimental data, material properties, and the usage environment. It is used to prevent the charging cable's outer sheath from hardening due to excessively low ambient temperatures, thereby ensuring the charging cable's operational flexibility and user experience under low-temperature conditions. The specific value of the preset temperature threshold can vary depending on the charging cable's material properties and the historical ambient temperature of the region of use.

[0077] In one optional embodiment, data from an ambient temperature sensor can be collected to determine whether the ambient temperature is lower than a preset temperature threshold, which can be set at the temperature point at which the charging cable material hardens. Simultaneously, the usage status of the target charging gun can be monitored to determine whether it is charging or idle. When the ambient temperature is lower than the preset temperature threshold and the target charging gun is not in use, the thermal management requirement is determined to be to conduct heat to raise the temperature of the outer sheath of the charging cable to prevent hardening and ensure that the user can easily plug and unplug the target charging gun even in low-temperature conditions. When the target charging gun is in use, including in high-power charging scenarios, it can be determined that the battery cell layer generates a significant amount of heat due to current flow, and the thermal management requirement is to dissipate heat to cool the battery cell layer to protect it from overheating damage and extend the lifespan of the charging cable.

[0078] During the above process, the specific requirements for thermal management can be intelligently determined based on environmental conditions and the usage status of the target charging gun, ensuring that the charging cable can be maintained within the ideal temperature range in different scenarios, providing users with a stable and safe charging experience.

[0079] In this embodiment of the invention, based on thermal management requirements, the operating state of the four-way heat exchanger in the thermal management system is controlled as follows: when the thermal management requirement is to conduct heat to raise the temperature of the outer sheath of the charging cable, the four-way heat exchanger is controlled to be in a first operating state, so that the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a non-connected state, and the heater in the first liquid heat conduction pipeline is controlled to be in an on state; when the thermal management requirement is to dissipate heat to lower the temperature of the battery cell layer of the charging cable, the four-way heat exchanger is controlled to be in a second operating state, so that the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a connected state, and the heater in the first liquid heat conduction pipeline is controlled to be in a closed state.

[0080] In one optional embodiment, when the thermal management requirement necessitates heating and insulation of the outer sheath, the controller can send a command to switch the four-way heat exchanger to a first operating state, cutting off the heat exchange path between the first and second liquid heat conduction pipes. Simultaneously, the heater in the first liquid heat conduction pipe is activated, putting it into heating mode. The controller can also control the first water pump to circulate the heated liquid within the first liquid heat conduction layer, conducting heat to the outer sheath and raising its temperature. When the thermal management requirement necessitates cooling the battery cell layer, the controller can control the four-way heat exchanger to a second operating state, connecting the first and second liquid heat conduction pipes to form a heat exchange loop. The heater can be turned off, and the cooler and second water pump can be activated, guiding the liquid that has absorbed heat from the battery cell layer from the second liquid heat conduction pipe through the four-way heat exchanger to the first liquid heat conduction pipe, where it is released into the external environment, achieving efficient heat dissipation and cooling of the battery cell layer.

[0081] The above process ensures that the outer sheath and battery cell layer of the charging cable can achieve targeted temperature regulation under different environmental conditions and usage states, effectively preventing the outer sheath from hardening at low temperatures and the battery cell layer from overheating damage, thus improving the flexibility and specificity of temperature control for the charging cable. During charging, timely and effective heat dissipation of the battery cell layer effectively prevents thermal runaway, reduces cable material aging and potential fire risks caused by high temperatures, and improves the overall safety performance of the charging pile. Through precise control of the four-way heat exchanger status, combined with the coordinated operation of the heater, efficient temperature regulation of the charging cable under different operating conditions is achieved, improving the reliability and safety of the charging cable.

[0082] In this embodiment of the invention, when the heater in the first liquid heat conduction pipeline is controlled to be in the on state, the method further includes: obtaining the heater power state of the heater; determining the first operating state of the cooler in the second liquid heat conduction pipeline based on the heater power state, wherein the first operating state includes one of the following: off state, on state, and first power state in the on state; and controlling the cooler based on the first operating state.

[0083] The aforementioned power status of the heater refers to the output power level of the heater when it is working, which will affect the heating rate and temperature rise of the liquid in the first liquid heat conduction pipeline.

[0084] In one optional embodiment, when it is detected that insulation of the outer sheath is required, the heater in the first liquid heat conduction pipeline can be activated, and the operating power of the heater can be further adjusted to ensure that the heat output matches the actual insulation requirements. Considering that the heat generated by the heater may affect the battery cell layer, the power status of the heater can be monitored to analyze whether the cooler in the second liquid heat conduction pipeline needs to be activated or adjusted. If the heater's power is high, the cooler can be set to the on state, and the first power state of the cooler can be adjusted according to the heater's power, thereby controlling the cooling rate and temperature drop of the liquid in the second liquid heat conduction pipeline. When the heater's power is low or there is not much heat, the controller can choose to turn off the cooler or adjust the cooler's power to a lower level to achieve better energy utilization efficiency.

[0085] In the above process, by monitoring and adjusting the power status of the heater and cooler in real time, optimal energy distribution can be achieved, avoiding energy redundancy or insufficiency, effectively improving energy utilization, reducing energy consumption, and lowering the operating costs of charging stations. The coordinated operation of the heater and cooler, through precise power regulation, ensures that the temperature of each layer inside and outside the charging cable meets its respective thermal management requirements.

[0086] In this embodiment of the invention, when the heater in the first liquid heat conduction pipeline is controlled to be in a closed state, the method further includes: obtaining the charging gun power state of the target charging gun; determining the second operating state of the cooler in the second liquid heat conduction pipeline based on the charging gun power state, wherein the second operating state includes one of the following: closed state, open state, and second power state in the open state; and controlling the cooler based on the second operating state.

[0087] The aforementioned charging gun power status refers to the output power of the target charging gun during the charging process, reflecting the energy transfer rate during charging. When the target charging gun is in use, i.e., when charging new energy vehicles, the output current and voltage of the target charging gun determine the power during the charging process.

[0088] In one optional embodiment, when cooling of the battery cell layer in the charging cable is required, the heater is in a turned-off state. The power status of the target charging gun can be acquired to reflect the rate and extent of heat generation in the battery cell layer based on the charging load of the target charging gun. Based on the charging gun power status, the heat dissipation requirements of the battery cell layer can be intelligently analyzed. When the charging gun power status is low, the heat generated by the battery cell layer is limited, and the cooler can be set to a turned-off state to avoid unnecessary energy consumption. When the charging gun power status is high, the cooler can be activated, and its secondary power status can be adjusted according to the charging gun power status to ensure that the heat dissipation efficiency matches the heat generation, effectively controlling the battery cell layer temperature and preventing overheating.

[0089] In the aforementioned process, intelligent control of the cooler's activation and power adjustment prevents cooling from starting when the target charging gun is charging at low power, thereby reducing energy waste, lowering charging pile operating costs, and improving energy utilization efficiency. During high-power charging, the cooler automatically adjusts to the optimal operating state based on the charging gun's power status, effectively controlling the cell layer temperature, avoiding performance degradation and safety risks caused by overheating, and extending the lifespan of cables and charging piles. Dynamically adjusting the cooler's operating state ensures a high degree of matching between the heat dissipation process and the charging gun's power status, achieving precise management of the cell layer temperature and improving the stability and efficiency of the charging pile under different charging loads. In high-power charging scenarios, it can quickly respond to the cell layer's heat dissipation needs, reducing charging interruptions caused by overheating, ensuring the continuity and safety of the charging process, and improving the user's charging experience.

[0090] In this embodiment of the invention, the method further includes: acquiring first temperature data collected by a first temperature sensor, second temperature data collected by a second temperature sensor, first water pump status data collected by a first water pump sensor, and second water pump status data collected by a second water pump sensor in the thermal management system, wherein the first temperature sensor is used to collect the liquid temperature in the first liquid heat conduction pipeline, and the second temperature sensor is used to collect the liquid temperature in the second liquid heat conduction pipeline; based on thermal management requirements, the first temperature data, the second temperature data, the first water pump monitoring data, and the second water pump monitoring data, controlling the working state of the four-way heat exchanger, and controlling the operating state of the heater, the first water pump, the cooler, and / or the second water pump in the thermal management system, the operating state including one of the following: off state, on state, and power state in the on state.

[0091] The aforementioned first temperature data refers to the temperature information collected by the first temperature sensor, which reflects the temperature of the liquid in the first liquid heat-conducting conduit. The first liquid heat-conducting conduit is located between the outer sheath and the insulation layer of the charging cable. It provides insulation for the outer sheath of the charging cable by heating the liquid, and can prevent the outer sheath from hardening in low-temperature environments.

[0092] The aforementioned second temperature data can refer to the temperature information collected by the second temperature sensor, which reflects the temperature of the liquid in the second liquid heat conduction pipe. The second liquid heat conduction pipe is located between the insulation layer and the battery cell layer, providing heat dissipation for the battery cell layer and preventing it from overheating.

[0093] The aforementioned first water pump status data refers to information collected by the first water pump sensor, reflecting the pump's operating status, including whether it is running, its operating speed, and any fault conditions. The first water pump drives the liquid flow within the first liquid heat-conducting layer, ensuring uniform distribution and flow for effective heating and insulation. By monitoring the first water pump status data, the controller can monitor its operation in real time, ensuring normal liquid circulation and promptly identifying and addressing potential problems such as speed reduction, blockage, or malfunction to avoid affecting heating performance.

[0094] The aforementioned second water pump status data refers to information collected by the second water pump sensor, reflecting the pump's operating status, including whether it is running, its operating speed, and any fault conditions. The second water pump drives the liquid flow within the second liquid heat-conducting layer, ensuring effective liquid circulation for heat dissipation and cooling. Monitoring the second water pump status data helps the controller understand its operating efficiency and health, ensuring cooling performance and allowing for timely responses to pump anomalies such as unstable speed, blockages, or malfunctions, thus maintaining system stability and safety.

[0095] In one optional embodiment, data collected by a first temperature sensor and a second temperature sensor can be acquired to monitor the liquid temperature within the first and second liquid heat-conducting pipes. Simultaneously, the operating status of the water pumps, including whether the pumps are operating normally and whether the pump speed meets preset requirements, can be acquired from the first and second water pump sensors. This real-time monitoring allows for a more comprehensive connection to the thermal management system's operating status, providing data support for subsequent intelligent control. Then, based on the determined thermal management requirements, a comprehensive analysis can be performed using the first temperature data, the second temperature data, and the first and second water pump monitoring data. For example, when insulation of the outer sheath is required, if the first temperature sensor indicates that the liquid temperature within the pipe is below a preset threshold, the controller can automatically adjust the four-way heat exchanger to its first operating state, while simultaneously increasing the power of the heater and accelerating the speed of the first water pump to rapidly raise the temperature of the outer sheath. If the battery cell layer overheats, the controller can switch the four-way heat exchanger to its second operating state based on the second temperature data, start the cooler, and adjust the flow rate of the second water pump to ensure effective control of the battery cell layer temperature.

[0096] Through multi-parameter comprehensive analysis, the temperature of the outer sheath and battery cell layer of the charging cable can be precisely controlled, improving the stability and reliability of the charging cable. The operating status of the heater, cooler, first water pump, and / or second water pump can be dynamically adjusted according to actual temperature and thermal management requirements, avoiding overheating or cooling and reducing unnecessary energy consumption. Precise temperature control effectively prevents the cable material from aging prematurely due to drastic temperature changes, extending the service life of the charging cable and charging station, and reducing maintenance costs.

[0097] Figure 5 This is a schematic diagram of an optional thermal management process for a charging cable according to an embodiment of the present invention, such as... Figure 5 As shown, the ambient temperature of the environment where the charging cable is located and the usage status of the target charging gun connected to the charging cable are obtained. When the ambient temperature is lower than a preset temperature threshold and the target charging gun is in an unused state, the thermal management requirement is determined to be to conduct heat to raise the temperature of the outer sheath of the charging cable; the four-way heat exchanger is controlled to be in a first working state, so that the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a disconnected state, and the heater in the first liquid heat conduction pipeline is controlled to be in an on state; the heating power status of the heater is obtained; based on the heating power status, the first operating state of the cooler in the second liquid heat conduction pipeline is determined; based on the first operating state, the cooler is controlled. When the target charging gun is in use, the thermal management requirement is determined to be heat dissipation and cooling of the battery cell layer of the charging cable; the four-way heat exchanger is controlled to be in a second working state, so that the first liquid heat conduction pipe and the second liquid heat conduction pipe are connected, and the heater in the first liquid heat conduction pipe is controlled to be in a closed state; the charging gun power status of the target charging gun is obtained; based on the charging gun power status, the second operating state of the cooler in the second liquid heat conduction pipe is determined; based on the second operating state, the cooler is controlled.

[0098] The technical solution proposed in this application will be described below with reference to an optional embodiment. This application proposes a charging pile maintenance system and control strategy. Addressing the problems of charging cable hardening due to low temperatures in outdoor charging piles or charging piles inside environmental enclosures, making them difficult to pick up and pull, difficult to align the charging gun with the charging base, and even difficult to successfully charge, this application designs a charging pile maintenance system and its control strategy.

[0099] The charging pile maintenance system uses a temperature module control system to control the four-way valve heat exchanger between the liquid cooling layer and the liquid insulation layer, thereby controlling the rapid heating, cooling, and fluid exchange of the liquid insulation and cooling layers. In addition to switching between different modes, it can continuously regulate the temperature of the liquid insulation and cooling layers to maintain the charging cable within its optimal operating temperature range. This application designs a charging pile maintenance system consisting of a dual-liquid-layer temperature control system and a module control system, which preheats, insulates, and rapidly dissipates heat through heat exchange of the antifreeze in the charging cable layer. The charging pile maintenance system, through the use of the module control system, can be linked with the dual-liquid-layer temperature control structure for rapid fluid exchange and precise temperature control, thus enabling rapid preheating, insulation, and rapid heat exchange for the charging pile maintenance system.

[0100] To ensure the charging cable does not harden at low temperatures in extreme environments, maintaining normal charging functionality and improving the user experience. To ensure the charging cable has corresponding control strategies to cope with different temperature environments, avoiding continuous energy consumption and achieving energy saving. To ensure the cable's lifespan is friendly to low-temperature environments and the heat generated during high-power charging, extending the lifespan and robustness of the cable sheath, thereby extending the service life, extending the service life of individual components, and reducing material costs per unit time.

[0101] The charging pile maintenance system and its control strategy designed in this application include a dual-liquid-layer temperature control system, which can be composed of a water tank body, pipelines, a heater, a cooler, a water pump, an outlet water temperature sensor, a return water temperature sensor, a check valve, an H-type four-way valve, and an ambient temperature sensor. The modular control system can be composed of a control module and a temperature analysis module. The charging linkage system has a specific modular control system, which controls the valve devices, thermistor heating devices, air conditioning cooling devices, and water pump devices to ensure that the fluid temperature reaches the specified temperature. By using the modular control system, the charging pile maintenance system can be linked with the dual-liquid-layer temperature control system for rapid liquid replacement and precise temperature control, thereby controlling the rapid preheating, heat preservation, and rapid heat exchange heat dissipation of the dual-liquid-layer temperature control system. Rapid preheating ensures the normal charging function of the charging cable under extreme environments. The heat preservation and rapid heat exchange heat dissipation functions ensure cable life and reduce operating costs. The dual-liquid-layer temperature control system for charging piles proposed in this application consists of an inner liquid cooling layer and an outer liquid insulation layer. This system enables rapid, high-flow-rate liquid exchange, rapid battery heating or cooling, similar to human dialysis, and allows for parallel and separate temperature control, thereby achieving the aforementioned benefits.

[0102] Embodiments of this application also provide an electronic device, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of this application when it runs.

[0103] The aforementioned memory can refer to devices inside a computer used to store data and programs, including RAM, hard disks, etc. RAM can be used to temporarily store running programs and data, while hard disks can be used to store programs and data long-term. Memory enables the computer to read and write data and execute programs. The aforementioned processor is responsible for executing instructions in computer programs and performing data processing. It can also be responsible for controlling and executing various operations, including arithmetic operations, logical operations, and data transmission.

[0104] Embodiments of this application also provide a computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of this application.

[0105] The aforementioned computer storage media can refer to the media used in computer memory to store certain discontinuous physical quantities. Computer storage media mainly include semiconductors, magnetic cores, magnetic drums, magnetic tapes, laser discs, etc. Computer-readable storage media include stored programs, which can be a set of instructions that a computer can recognize and execute, running on an electronic computer to meet certain information needs.

[0106] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the methods of various embodiments of this application.

[0107] The aforementioned computer program products can refer to software programs that have been written, tested, and released, and can run on computers or other devices. Computer program products can include application programs, operating systems, utility software, etc., used to achieve specific functions or solve specific problems.

[0108] Embodiments of this application also provide a computer program product, including a non-volatile computer-readable storage medium for storing a computer program that, when executed by a processor, implements the methods in various embodiments of this application.

[0109] The aforementioned non-volatile computer-readable storage medium can refer to a medium for storing data. Non-volatile computer-readable storage media can retain data without loss when power is off and can be used to store long-term data, such as operating systems, applications, and user files. Non-volatile storage media can include hard disk drives, solid-state drives, optical disks, and flash memory storage devices, etc.

[0110] Embodiments of this application also provide a computer program that, when executed by a processor, implements the methods described in the various embodiments of this application.

[0111] The aforementioned computer program can refer to a set of instructions used to tell the computer to perform specific tasks or operations. Computer programs can be written by programmers using specific programming languages ​​and can include algorithms, data structures, logic, and control flow. Computer programs can be used for a variety of purposes, including application software, operating systems, etc.

[0112] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0113] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0114] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0115] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0116] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0117] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A charging cable, characterized in that, One end of the charging cable is connected with a charging pile, and the other end of the charging cable is connected with a target charging gun; in the radial direction of the charging cable, from the outside to the inside, an outer protective layer, a first liquid heat conduction layer, a heat insulation layer, a second liquid heat conduction layer and an electric core layer are arranged in sequence and are attached to each other, wherein the first liquid heat conduction layer is used for heat conduction heating for the outer protective layer, and the second liquid heat conduction layer is used for heat dissipation cooling for the electric core layer.

2. A thermal management system for a charging cable, characterized by, The system is applied to the charging cable in claim 1, and the system comprises: a first liquid heat conduction pipeline arranged in the first liquid heat conduction layer of the charging cable; a second liquid heat conduction pipeline arranged in the second liquid heat conduction layer of the charging cable; a four-way heat exchanger, a first port of the four-way heat exchanger is connected with a first port of the first liquid heat conduction pipeline, a second port of the four-way heat exchanger is connected with a second port of the first liquid heat conduction pipeline, a third port of the four-way heat exchanger is connected with a first port of the second liquid heat conduction pipeline, and a fourth port of the four-way heat exchanger is connected with a second port of the second liquid heat conduction pipeline, wherein in the case that the four-way heat exchanger is in a first working state, the first port of the four-way heat exchanger and the second port of the four-way heat exchanger are communicated, the third port of the four-way heat exchanger and the fourth port of the four-way heat exchanger are communicated, the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a non-communication state, and the outer protective layer of the charging cable is heat conduction heated, and in the case that the four-way heat exchanger is in a second working state, the first port of the four-way heat exchanger and the third port of the four-way heat exchanger are communicated, the second port of the four-way heat exchanger and the fourth port of the four-way heat exchanger are communicated, the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a communication state, and the electric core layer of the charging cable is heat dissipation cooled; a controller connected with the four-way heat exchanger, used for controlling the working state of the four-way heat exchanger based on the heat management demand of the charging cable.

3. The thermal management system of a charging cable according to claim 2, characterized in that, The first liquid heat conduction pipeline is provided with a heater and a first water pump, the heater is used for heating and warming the liquid in the first liquid heat conduction pipeline, and the first water pump is used for controlling the flow of the liquid in the first liquid heat conduction pipeline; the second liquid heat conduction pipeline is provided with a refrigerator and a second water pump, the refrigerator is used for cooling and cooling the liquid in the second liquid heat conduction pipeline, and the second water pump is used for controlling the flow of the liquid in the second liquid heat conduction pipeline; The controller is connected with the heater, the first water pump, the refrigerator and the second water pump, and is used for controlling the running state of the heater, the first water pump, the refrigerator and / or the second water pump based on the heat management demand, the running state including one of the following: a closed state, an open state and a power state in the open state.

4. A method of thermal management of a charging cable, characterized by, The method is applied to the heat management system in claim 2 or 3, and the method comprises: obtaining the heat management demand of the charging cable; Based on the heat management requirement, the working state of a four-way heat exchanger in the heat management system is controlled to adjust the communication state of the first liquid heat conduction pipeline and the second liquid heat conduction pipeline.

5. The thermal management method of a charging cable according to claim 4, characterized in that, Obtain the heat management requirement of the charging cable, including: Obtain the ambient temperature of the environment where the charging cable is located, and the use state of the target charging gun connected with the charging cable; Based on the ambient temperature and / or the use state, the heat management requirement is determined.

6. The thermal management method of a charging cable according to claim 5, characterized in that, Based on the ambient temperature and / or the use state, the heat management requirement is determined, including: In the case that the ambient temperature is less than a preset temperature threshold, and the use state is that the target charging gun is in an unused state, it is determined that the heat management requirement is to heat the outer sheath of the charging cable by heat conduction; In the case that the use state is that the target charging gun is in a used state, it is determined that the heat management requirement is to cool the cell layer of the charging cable by heat dissipation.

7. The thermal management method of a charging cable according to any one of claims 4 to 6, characterized in that, Based on the heat management requirement, the working state of a four-way heat exchanger in the heat management system is controlled, including: In the case that the heat management requirement is to heat the outer sheath of the charging cable by heat conduction, the four-way heat exchanger is controlled to be in a first working state, so that the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a non-communication state, and the heater in the first liquid heat conduction pipeline is controlled to be in an open state; In the case that the heat management requirement is to cool the cell layer of the charging cable by heat dissipation, the four-way heat exchanger is controlled to be in a second working state, so that the first liquid heat conduction pipeline and the second liquid heat conduction pipeline are in a communication state, and the heater in the first liquid heat conduction pipeline is controlled to be in a closed state.

8. The thermal management method of a charging cable according to claim 7, characterized in that, In the case that the heater in the first liquid heat conduction pipeline is controlled to be in an open state, the method further includes: Obtain the heater power state of the heater; Based on the heater power state, determine the first running state of the refrigeration device in the second liquid heat conduction pipeline, wherein the first running state includes one of the following: closed state, open state and first power state in the open state; Control the refrigeration device based on the first running state.

9. The thermal management method of a charging cable of claim 7, wherein, In the case that the heater in the first liquid heat conduction pipeline is controlled to be in a closed state, the method further includes: Obtain the charging gun power state of the target charging gun; Based on the charging gun power state, determine the second running state of the refrigeration device in the second liquid heat conduction pipeline, wherein the second running state includes one of the following: closed state, open state and second power state in the open state; Control the refrigeration device based on the second running state.

10. The thermal management method of a charging cable according to any one of claims 4 to 6, characterized in that, The method further includes: acquire first temperature data collected by a first temperature sensor, second temperature data collected by a second temperature sensor, first water pump condition data collected by a first water pump sensor, and second water pump condition data collected by a second water pump sensor, wherein the first temperature sensor is configured to collect liquid temperature in the first liquid heat conduction pipeline, and the second temperature sensor is configured to collect liquid temperature in the second liquid heat conduction pipeline; based on the thermal management requirement, the first temperature data, the second temperature data, the first water pump monitoring data, and the second water pump monitoring data, control the working state of the four-way heat exchanger, and control the operation state of the heater, the first water pump, the refrigerator, and / or the second water pump in the thermal management system, the operation state including one of the following: a closed state, an open state, and a power state in the open state.

11. An electronic device, comprising: comprising: a memory storing an executable program; a processor configured to execute the program, wherein the program, when executed, performs the thermal management method of the charging cable according to any one of claims 4 to 10.

12. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a stored executable program, wherein when the executable program is executed, the device where the storage medium is located performs the thermal management method of the charging cable according to any one of claims 4 to 10.

13. A computer program product, characterised in that, comprising a computer program, which, when executed by a processor, implements the thermal management method of the charging cable according to any one of claims 4 to 10.

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