Thermal management system for energy storage charging pile, and energy storage charging pile

Abstract

Provided in the embodiments of the present disclosure are a thermal management system for an energy storage charging pile, and an energy storage charging pile. In the system, in a first liquid cooling circuit, a first cooling pipe passes through a battery and a heat exchange module, and a first coolant in the first cooling pipe is an insulating liquid or a non-insulating liquid; in a second liquid cooling circuit, a second cooling pipe passes through a charging module and the heat exchange module, and a second coolant in the second cooling pipe is an insulating liquid; the first cooling pipe and the second cooling pipe exchange heat by means of the heat exchange module; a charging converter is electrically connected to the battery, and a charging gun is electrically connected to the charging converter by means of a charging harness; the charging module comprises the charging gun and the charging harness, and the charging gun is electrically connected to the battery by means of the charging harness; and the second cooling pipe is arranged along the charging harness and passes through the charging gun. Thus, in the event of liquid leakage caused by damage to the charging harness, using the insulating second coolant for cooling can reduce the occurrence of electric leakage.

Description

Energy storage charging pile heat management system and energy storage charging pile

[0001] Cross-reference to Related Applications

[0002] The present disclosure is based on the Chinese patent application No. 202421713550.3, filed on July 19, 2024, entitled "Energy storage charging pile heat management system and energy storage charging pile", and claims priority to the Chinese patent application, the entire contents of which are hereby incorporated by reference into the present disclosure. TECHNICAL FIELD

[0003] The present disclosure relates to, but is not limited to, the field of energy storage, and in particular, to an energy storage charging pile heat management system and an energy storage charging pile. BACKGROUND

[0004] In order to avoid the influence of the overall performance of the automobile due to overheating of the energy storage system and the charging system, and the use efficiency is extremely low due to overcooling during charging or driving of the electric vehicle, the energy storage system and the charging system need to be kept within a suitable temperature range under various working conditions. In the related art, the energy storage system and the charging system are connected by using the same heat management system pipeline. After the charging gun wire harness is subjected to external crushing, the leakage of the cooling liquid is easy to cause electric shock safety accidents. SUMMARY

[0005] Therefore, the embodiments of the present disclosure at least provide an energy storage charging pile heat management system and an energy storage charging pile.

[0006] The technical solutions of the embodiments of the present disclosure are implemented as follows:

[0007] The embodiments of the present disclosure provide an energy storage charging pile heat management system, which comprises:

[0008] a first liquid cooling circuit, a second liquid cooling circuit, and a heat exchange module; wherein,

[0009] The first liquid cooling circuit comprises a first cooling pipeline, the first cooling pipeline passes through a battery and the heat exchange module in the energy storage charging pile, and a first cooling liquid in the first cooling pipeline is an insulating liquid or a non-insulating liquid;

[0010] The second liquid cooling circuit comprises a second cooling pipeline, the second cooling pipeline passes through a charging module and the heat exchange module in the energy storage charging pile, and a second cooling liquid in the second cooling pipeline is an insulating liquid;

[0011] The first cooling pipeline and the second cooling pipeline exchange heat through the heat exchange module;

[0012] The charging module comprises a charging gun and a charging wire harness, the charging gun is electrically connected with the charging battery through the charging wire harness, and the second cooling pipeline is arranged along the charging wire harness and passes through the charging gun.

[0013] In the energy storage charging pile thermal management system, in the first liquid cooling circuit, the first cooling pipeline passes through the battery and the heat exchange module in the energy storage charging pile, and the first cooling liquid in the first cooling pipeline is an insulating liquid or a non-insulating liquid; in the second liquid cooling circuit, the second cooling pipeline passes through the charging module and the heat exchange module in the energy storage charging pile, and the second cooling liquid in the second cooling pipeline is an insulating liquid; the first cooling pipeline and the second cooling pipeline exchange heat through the heat exchange module; the charging module includes a charging gun and a charging wire harness, and the charging gun is electrically connected with the battery through the charging wire harness; the second cooling pipeline is arranged along the charging wire harness and passes through the charging gun. In this way, the heat management pipelines of the battery and the charging module are separated, and in the case that the charging wire harness is damaged to cause liquid leakage, the use of the insulating second cooling liquid for the charging module can reduce the occurrence of electric leakage.

[0014] In some embodiments, the first cooling liquid includes water, and the second cooling liquid includes cooling oil.

[0015] In the above embodiments, the first cooling liquid is water, and the second cooling liquid is insulating cooling oil. In this way, the charging module uses the cooling oil with good insulation as the cooling liquid, which can improve the safety of the charging module, and the battery uses water with higher specific heat capacity as the cooling liquid, which has better heat dissipation effect and can balance the safety of the charging module and the cooling effect of the battery.

[0016] In some embodiments, the energy storage charging pile thermal management system further includes a charging converter, and the first cooling pipeline further passes through the charging converter; wherein the charging converter is electrically connected with the battery, and the charging gun is electrically connected with the charging converter through the charging wire harness; the charging converter is used to convert the electric energy input by the charging gun and then transmit the electric energy to the battery through the charging wire harness, or convert the electric energy output by the battery and then transmit the electric energy to the charging gun through the charging wire harness.

[0017] In the above embodiments, the first cooling pipeline passes through the charging converter to control the temperature of the charging converter, and the charging converter is used to convert the electric energy transmitted between the battery and the charging gun. In this way, the temperature control of the charging converter can be realized.

[0018] In some embodiments, the first cooling pipeline includes a first flow channel that flows through the battery, a second flow channel that flows through the charging converter, and a third flow channel that flows through the heat exchange module, the first flow channel and the second flow channel are connected in parallel, and the first flow channel and the second flow channel are connected in series with the third flow channel respectively.

[0019] In the above embodiments, the first flow channel and the second flow channel are connected in parallel, and the first flow channel and the second flow channel are connected in series with the third flow channel respectively. In this way, heat exchange between the first flow channel and the third flow channel, and heat exchange between the second flow channel and the third flow channel can be respectively realized.

[0020] In some embodiments, the energy storage charging pile thermal management system further comprises a refrigerant circuit and a heat dissipation module; the refrigerant circuit comprises a compressor, a condenser and a refrigerant pipeline, the refrigerant pipeline passes through the heat exchange module and the heat dissipation module; the compressor is used to drive the refrigerant in the refrigerant pipeline to circulate and flow; the refrigerant pipeline exchanges heat in the first cooling pipeline and / or the second cooling pipeline to the heat dissipation module through the heat exchange module.

[0021] In the above embodiment, the compressor drives the refrigerant in the refrigerant pipeline to flow through the heat exchange module, and exchanges heat in the first cooling pipeline and / or the second cooling pipeline to the heat dissipation module. In this way, by exchanging heat between the first cooling pipeline, the second cooling pipeline and the heat dissipation module through the heat exchange module, the temperature of the battery and the charging module can be controlled within a suitable range, and the normal work of the battery and the charging module is ensured.

[0022] In some embodiments, the heat exchange module comprises a three-circuit heat exchanger; the three-circuit heat exchanger comprises a first heat exchange circuit, a second heat exchange circuit and a third heat exchange circuit; the first heat exchange circuit communicates with the first cooling pipeline, the second heat exchange circuit communicates with the second cooling pipeline, and the third heat exchange circuit communicates with the refrigerant pipeline.

[0023] In the above embodiment, the first heat exchange circuit communicates with the first cooling pipeline to exchange heat with the battery; the second heat exchange circuit communicates with the second cooling pipeline to exchange heat with the charging module; and the third heat exchange circuit communicates with the refrigerant pipeline to exchange heat with the heat dissipation module. In this way, the heat exchange between the battery, the charging module and the heat dissipation module is realized through the three-circuit heat exchanger, so that the loss of heat or cold is less.

[0024] In some embodiments, the three-circuit heat exchanger comprises a first heat exchange layer, a second heat exchange layer and a third heat exchange layer arranged in layers; the first heat exchange circuit is arranged in the first heat exchange layer, the second heat exchange circuit is arranged in the second heat exchange layer, and the third heat exchange circuit is arranged in the third heat exchange layer.

[0025] In the above embodiment, the first heat exchange layer, the second heat exchange layer and the third heat exchange layer are arranged in layers, and the first heat exchange circuit is arranged in the first heat exchange layer, the second heat exchange circuit is arranged in the second heat exchange layer, and the third heat exchange circuit is arranged in the third heat exchange layer. In this way, heat transfer between the first heat exchange circuit, the second heat exchange circuit and the third heat exchange circuit can be realized, and the first heat exchange layer, the second heat exchange layer and the third heat exchange layer are arranged in layers, which can simplify the implementation of the first heat exchange circuit, the second heat exchange circuit and the third heat exchange circuit.

[0026] In some embodiments, the heat exchange module comprises a first two-circuit heat exchanger, a second two-circuit heat exchanger and a third two-circuit heat exchanger; the two heat exchange circuits in the first two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the second cooling pipeline; the two heat exchange circuits in the second two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the refrigerant pipeline; and the two heat exchange circuits in the third two-circuit heat exchanger are respectively in communication with the second cooling pipeline and the refrigerant pipeline.

[0027] In the above embodiments, the two heat exchange circuits in the first two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the second cooling pipeline, so as to realize heat exchange between the first cooling pipeline and the second cooling pipeline; the two heat exchange circuits in the second two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the refrigerant pipeline, so as to realize heat exchange between the first cooling pipeline and the refrigerant pipeline; and the two heat exchange circuits in the third two-circuit heat exchanger are respectively in communication with the second cooling pipeline and the refrigerant pipeline, so as to realize heat exchange between the second cooling pipeline and the refrigerant pipeline.

[0028] In some embodiments, the second cooling pipeline is wound around the charging wire harness.

[0029] In the above embodiments, the second cooling pipeline is wound around the charging wire harness. In this way, the charging wire harness and the charging gun can be uniformly cooled by the second cooling pipeline.

[0030] The present disclosure provides a kind of energy storage charging pile, comprising charging module, battery, charging converter and the energy storage charging pile thermal management system described above;Wherein, charging converter is electrically connected with battery, charging module includes charging gun and charging wire harness, charging gun is electrically connected with charging converter by charging wire harness;Charging converter is used to convert the electric energy input by charging gun and then is sent to battery by charging wire harness, or converts the electric energy output by battery and then is sent to charging gun by charging wire harness. BRIEF DESCRIPTION OF DRAWINGS

[0031] Fig. 1 is a circuit connection schematic diagram of an energy storage charging pile according to an embodiment of the present disclosure;

[0032] Fig. 2 is a schematic diagram of the composition structure of an energy storage charging pile thermal management system according to an embodiment of the present disclosure;

[0033] Fig. 3 is a schematic diagram of the composition structure of an energy storage charging pile thermal management system according to an embodiment of the present disclosure;

[0034] Fig. 4 is a circuit connection schematic diagram of an energy storage charging pile according to an embodiment of the present disclosure;

[0035] Fig. 5 is a schematic diagram of the composition structure of an energy storage charging pile thermal management system according to an embodiment of the present disclosure;

[0036] Fig. 6 is a schematic diagram of the composition structure of a thermal management system of a charging pile according to an embodiment of the present disclosure;

[0037] Fig. 7 is a schematic diagram of the composition structure of a thermal management system of a charging pile according to an embodiment of the present disclosure;

[0038] Fig. 8 is a schematic diagram of the composition structure of a thermal management system of a charging pile according to an embodiment of the present disclosure;

[0039] Fig. 9 is a schematic diagram of the circuit connection of a charging pile according to an embodiment of the present disclosure;

[0040] Fig. 10 is a schematic diagram of the composition structure of a thermal management system of a charging pile according to an embodiment of the present disclosure;

[0041] Fig. 11 is a schematic diagram of the composition structure of a charging pile according to an embodiment of the present disclosure;

[0042] Fig. 12 is a schematic diagram of the working of a thermal management system of a charging pile in a battery heating and charging gun cooling mode according to an embodiment of the present disclosure;

[0043] Fig. 13 is a schematic diagram of the working of a thermal management system of a charging pile in a battery cooling and charging gun cooling mode according to an embodiment of the present disclosure;

[0044] Fig. 14 is a schematic diagram of the working of a thermal management system of a charging pile in a battery not working and charging gun cooling mode according to an embodiment of the present disclosure;

[0045] Fig. 15 is a schematic diagram of the working of a thermal management system of a charging pile in a charging gun not working and battery cooling mode according to an embodiment of the present disclosure.

[0046] Legend 100, thermal management system of a charging pile; 110, battery; 120, heat exchange module; 130, charging module; 131, charging gun; 132, charging wire harness; 140, first liquid cooling circuit; 141, first cooling pipeline; 142, first cooling liquid pump; 143, first flow channel; 144, second flow channel; 145, third flow channel; 150, second liquid cooling circuit; 151, second cooling pipeline; 152, second cooling liquid pump; 160, heat dissipation module; 170, refrigerant circuit; 171, compressor; 172, condenser; 173, refrigerant pipeline; 180, control module; 190, charging pile; 191, charging inverter; 192, energy storage inverter; 301, battery module; 303, heat exchanger; 304, liquid cooling pipeline; 305, water pump; 306, oil cooling pipeline; 307, oil pump; 310, heat dissipation fan; 311, DC / DC; 312, AC / DC; 401, power grid; 402, energy storage interface; 403, DC bus. DETAILED DESCRIPTION

[0047] It should be noted that the embodiments and technical features in the present disclosure can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation of the purpose of the present disclosure, and should not be regarded as an improper limitation of the present disclosure.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure; the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion.

[0049] In the description of the embodiments of the present disclosure, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0050] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0051] In the description of the embodiments of the present disclosure, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are "or" relationship.

[0052] In the description of the embodiments of the present disclosure, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and therefore cannot be understood as a limitation on the embodiments of the present disclosure. The orientation, construction, operation or use of the device or element indicated or implied.

[0053] In the description of the embodiments of the present disclosure, unless explicitly defined and limited otherwise, the technical terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0054] In the description of the embodiments of the present disclosure, unless explicitly defined and limited otherwise, the technical term "contacting" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, and can be contact between two contacting objects without interaction force, or contact between two contacting objects with interaction force.

[0055] Therefore, the embodiments of the present disclosure provide a kind of energy storage charging pile thermal management system. The energy storage charging pile thermal management system is applied to energy storage charging pile, Figure 1 is a kind of energy storage charging pile circuit connection schematic diagram one provided in the embodiments of the present disclosure, as shown in Figure 1, charging module includes charging gun 131 and charging harness 132, charging gun 131 is electrically connected with battery 110 by charging harness 132.

[0056] In some embodiments, the charging harness 131 is placed in the harness tube sleeve to prevent the charging harness 131 from being damaged by abrasion, stretching, twisting, or external environment.

[0057] In some embodiments, the harness tube sleeve can be made of polyvinyl chloride (PVC), rubber, nylon, etc.

[0058] Figure 2 is a schematic diagram of the composition structure of an energy storage charging pile thermal management system provided by the embodiments of the present disclosure, as shown in Figure 2, the energy storage charging pile thermal management system 100 includes a first liquid cooling circuit 140, a second liquid cooling circuit 150 and a heat exchange module 120, wherein:

[0059] The first liquid cooling circuit 140 includes a first cooling pipe 141, which passes through the battery 110 and the heat exchange module 120 in the energy storage charging pile, and the first cooling liquid in the first cooling pipe 141 is an insulating liquid or a non-insulating liquid;

[0060] The second liquid cooling circuit 150 includes a second cooling pipe 151, which passes through the charging module 130 and the heat exchange module 120 in the energy storage charging pile, and the second cooling liquid in the second cooling pipe 151 is an insulating liquid;

[0061] The first cooling pipeline 141 exchanges heat with the second cooling pipeline 151 through the heat exchange module 120.

[0062] The second cooling pipeline 151 is arranged along the charging harness 132 and passes through the charging gun 131.

[0063] Here, the first liquid cooling circuit 140 is used to control the temperature of the battery 110, including heating and cooling of the battery 110, and controls the temperature of the battery 110 within a suitable range, which can improve the performance of the battery 110 and prolong the service life of the battery 110.

[0064] Here, the first cooling pipeline 141 contains the first cooling liquid, and the first cooling liquid circulates in the first cooling pipeline 141 and can flow through the battery 110 and the heat exchange module 120.

[0065] In some embodiments, as shown in FIG. 3, the first liquid cooling circuit 140 further includes a first cooling liquid pump 142, which is used to drive the first cooling liquid in the first cooling pipeline 141 to circulate, and the first cooling pipeline 141 passes through the battery 110 and the heat exchange module 120. The first cooling liquid in the first cooling pipeline 141 is driven to circulate by the first cooling liquid pump 142, and heat exchange between the battery 110 and the heat exchange module 120 is performed.

[0066] In some embodiments, the first cooling liquid can be an insulating liquid or a non-insulating liquid, such as ethylene glycol cooling liquid, propylene glycol cooling liquid, silicon-based oil cooling liquid, etc.

[0067] Here, the second liquid cooling circuit 150 is used to control the temperature of the charging module 130, which can ensure the temperature stability of the charging module 130, thereby improving the charging efficiency and safety.

[0068] Here, the second cooling pipeline 151 contains the second cooling liquid, and the second cooling liquid circulates in the second cooling pipeline 151 and can flow through the charging module 130 and the heat exchange module 120.

[0069] In some embodiments, as shown in FIG. 3, the second liquid cooling circuit 150 further includes a second cooling liquid pump 152, which is used to drive the second cooling liquid in the second cooling pipeline 151 to circulate, and the second cooling pipeline 151 passes through the charging module 130 and the heat exchange module 120. The second cooling liquid in the second cooling pipeline 151 is driven to circulate by the second cooling liquid pump 152, and heat exchange between the charging module 130 and the heat exchange module 120 is performed.

[0070] In some embodiments, the second cooling liquid in the second cooling pipeline 151 uses insulating cooling oil, which can avoid electric shock safety accidents caused by leakage of the second cooling liquid.

[0071] In some embodiments, the first cooling pipe 141 exchanges heat with the second cooling pipe 151 through the heat exchange module 120.

[0072] In some embodiments, the energy storage charging pile can include multiple batteries (such as battery modules), and can also include a direct current-direct current (DC / DC) converter or an alternating current-direct current (AC / DC) converter, etc. For example, as shown in FIG. 12, the first cooling pipe (such as the liquid cooling pipe 304) can pass through the battery module 301, the DC / DC 311, the AC / DC 312, and the heat exchanger 303 in the energy storage charging pile.

[0073] In some embodiments, the first cooling pipe 141 includes a liquid cooling pipe, such as the liquid cooling pipe 304 shown in FIG. 12; and the second cooling pipe 151 includes an oil cooling pipe, such as the oil cooling pipe 306 shown in FIG. 12.

[0074] In some embodiments, the first cooling liquid pump 142 can include a water pump, such as the water pump 305 shown in FIG. 12; and the second cooling liquid pump 152 can include an oil pump, such as the oil pump 307 shown in FIG. 12.

[0075] In some embodiments, the heat exchange module 120 can include a three-circuit heat exchanger; for example, the heat exchanger 303 shown in FIG. 12.

[0076] In some embodiments, the heat exchanger used in the heat exchange module 120 can be of various types, such as a partition heat exchanger, a shell-and-tube heat exchanger, a double-pipe heat exchanger, and other types, etc. The liquids in the two circuits for heat exchange are independent and do not directly contact / mix during the heat exchange process.

[0077] In some embodiments, when the charging module 130 needs to be cooled and the battery 110 needs to be heated, heat exchange between the second cooling pipe 151 and the first cooling pipe 141 is performed through the heat exchange module 120 to exchange the heat of the charging module 130 to the battery 110.

[0078] In the embodiments of the present disclosure, the first liquid cooling circuit includes a first cooling pipeline, the first cooling pipeline passes through the battery in the energy storage charging pile and the heat exchange module, and the first cooling liquid in the first cooling pipeline is an insulating liquid or a non-insulating liquid; the second liquid cooling circuit includes a second cooling pipeline, the second cooling pipeline passes through the charging module and the heat exchange module in the energy storage charging pile, and the second cooling liquid in the second cooling pipeline is an insulating liquid; the first cooling pipeline and the second cooling pipeline exchange heat through the heat exchange module; the charging module includes a charging gun and a charging wire harness, the charging gun is connected with the battery through the charging wire harness; and the second cooling pipeline is arranged along the charging wire harness and passes through the charging gun. In this way, the heat management pipelines of the battery and the charging module are separated, and in the case that the charging wire harness is damaged to cause liquid leakage, the use of the insulating second cooling liquid for cooling the charging module can reduce the occurrence of electric leakage.

[0079] In some embodiments, the first cooling liquid includes water, and the second cooling liquid includes cooling oil.

[0080] In some embodiments, the main role of the cooling liquid is to ensure that the battery and the charging module operate within a normal temperature range.

[0081] In some embodiments, the second cooling liquid is insulating cooling oil, the insulating cooling oil has high insulation performance, can effectively prevent current leakage, ensure normal operation of the battery module, and can avoid electric shock safety accidents caused by leakage of the second cooling liquid.

[0082] In the embodiments of the present disclosure, the first cooling liquid is water, and the second cooling liquid is insulating cooling oil. In this way, the charging module uses cooling oil with good insulation as the cooling liquid, which can improve the safety of the charging module, and the battery uses water with higher specific heat capacity as the cooling liquid, which has better heat dissipation effect and can balance the safety of the charging module and the cooling effect of the battery.

[0083] FIG. 4 is a schematic diagram of a circuit connection of an energy storage charging pile according to an embodiment of the present disclosure, as shown in FIG. 4, the charging converter 191 is electrically connected with the battery 110, and the charging gun 131 is electrically connected with the charging converter 191 through the charging wire harness 132; the charging converter 191 is used to convert the electric energy input by the charging gun 131 and then transmit the electric energy to the battery 110 through the charging wire harness 132, or convert the electric energy output by the battery 110 and then transmit the electric energy to the charging gun 131 through the charging wire harness 132.

[0084] In some embodiments, as shown in FIG. 5, the energy storage charging pile heat management system further includes a charging converter 191, and the first cooling pipeline 141 further passes through the charging converter 191.

[0085] In some embodiments, the charging converter can be a DC / DC converter, and the charging converter is placed in the first liquid cooling loop for temperature control, since there is less risk of liquid leakage due to damage to the cooling pipe of the charging converter.

[0086] In some embodiments, in the first cooling pipe 141, the first flow passage 143 flowing through the battery 110, the second flow passage 144 flowing through the charging converter 191, and the third flow passage 145 flowing through the heat exchange module 120 are connected in series, and heat exchange is performed between the first flow passage 143, the second flow passage 144, and the third flow passage 145.

[0087] In some embodiments, the first cooling pipe flows through the battery, the charging converter, the energy storage converter, and the heat exchange module, and heat or cold exchange of the heat exchange module to the battery, the charging converter, and the energy storage converter can be achieved.

[0088] In some embodiments, in the first cooling pipe 141, the first flow passage 143 flowing through the battery 110 and the second flow passage 144 flowing through the charging converter 191 are connected in parallel, and the first flow passage 143 and the second flow passage 144 are respectively connected in series with the third flow passage 145 flowing through the heat exchange module 120. Control valves can be provided in the first flow passage 143 and the second flow passage 144 to control whether the first flow passage 143 and the second flow passage 144 perform heat exchange with the third flow passage 145. In this way, heat exchange between the first flow passage 143 and the third flow passage 145, and heat exchange between the second flow passage 144 and the third flow passage 145 can be performed respectively.

[0089] In the above embodiments, the first cooling pipe passes through the charging converter to control the temperature of the charging converter, and the charging converter converts the electric energy transmitted between the battery and the charging gun. In this way, temperature control of the charging converter can be achieved.

[0090] In some embodiments, FIG. 6 is a schematic structural diagram of a power storage charging pile thermal management system according to an embodiment of the present disclosure, as shown in FIG. 6, the first cooling pipe 141 includes the first flow passage 143 flowing through the battery 110, the second flow passage 144 flowing through the charging converter 191, and the third flow passage 145 flowing through the heat exchange module 120, the first flow passage 143 and the second flow passage 144 are connected in parallel, and the first flow passage 143 and the second flow passage 144 are respectively connected in series with the third flow passage 145.

[0091] In some embodiments, in the first cooling pipeline 141, the first flow passage 143 flowing through the battery 110 is connected in parallel with the second flow passage 144 flowing through the charging converter 191, and the first flow passage 143 and the second flow passage 144 are respectively connected in series with the third flow passage 145 flowing through the heat exchange module 120; control valves can be arranged in the first flow passage 143 and the second flow passage 144 to control whether the first flow passage 143 and the second flow passage 144 exchange heat with the third flow passage 145. In this way, heat exchange between the first flow passage 143 and the third flow passage 145 and heat exchange between the second flow passage 144 and the third flow passage 145 can be respectively performed.

[0092] In the above embodiments, the first flow passage and the second flow passage are connected in parallel, and the first flow passage and the second flow passage are respectively connected in series with the third flow passage. In this way, heat exchange between the first flow passage and the third flow passage and heat exchange between the second flow passage and the third flow passage can be respectively performed.

[0093] In some embodiments, FIG. 7 is a schematic diagram of a component structure of a thermal management system of an energy storage charging pile according to an embodiment of the present disclosure, as shown in FIG. 7, the thermal management system of the energy storage charging pile 100 further includes a refrigerant circuit 170 and a heat dissipation module 160.

[0094] The refrigerant circuit 170 includes a compressor 171, a condenser 172, and a refrigerant pipeline 173, and the refrigerant pipeline 173 passes through the heat exchange module 120 and the heat dissipation module 160; the compressor 171 is used to drive the refrigerant in the refrigerant pipeline 173 to circulate and flow;

[0095] The refrigerant pipeline 173 exchanges heat in the first cooling pipeline 141 and / or the second cooling pipeline 151 to the heat dissipation module 160 through the heat exchange module 120.

[0096] In some embodiments, the refrigerant circuit 170 drives the refrigerant in the refrigerant pipeline 173 to circulate and flow through the compressor 171, and exchanges heat in the heat exchange module 120 to the heat dissipation module 160.

[0097] In some embodiments, the heat dissipation module 160 can include a heat dissipation fan, for example, a heat dissipation fan 310 as shown in FIG. 12.

[0098] In some embodiments, the heat dissipation fan can take away the heat inside the charging pile by generating air flow.

[0099] In some embodiments, the heat dissipation module can further include a heat dissipation fin, which increases the heat dissipation area so that heat is more easily dissipated into the air.

[0100] In the embodiments of the present disclosure, the refrigerant in the compressor driving refrigerant pipeline flows through the heat exchange module, and the heat in the first cooling pipeline and / or the second cooling pipeline is exchanged to the heat dissipation module. In this way, by exchanging heat among the first cooling pipeline, the second cooling pipeline and the heat dissipation module through the heat exchange module, the temperature of the battery and the charging module can be controlled within a suitable range, and the normal work of the battery and the charging module is ensured.

[0101] In some embodiments, as shown in FIG. 8, the working scenarios of the energy storage charging pile can include at least one of the following:

[0102] In the case that the charging module 130 works and the battery 110 does not work, the control module 180 controls the first cooling liquid pump 142 to start, the second cooling liquid pump 152 to start and the compressor 171 to stop, so as to exchange the heat generated by the working of the charging module 130 to the battery 110 through the second cooling pipeline 151, the heat exchange module 120 and the first cooling pipeline 141, or controls the first cooling liquid pump 142 to stop, the second cooling liquid pump 152 to start and the compressor 171 to start, so as to exchange the heat generated by the working of the charging module 130 to the heat dissipation module 120 through the second cooling pipeline 151, the heat exchange module 120 and the refrigerant pipeline 173.

[0103] In the case that the charging module 130 and the battery 110 both work, the control module 180 controls the first cooling liquid pump 142 to start, the second cooling liquid pump 152 to start and the compressor 171 to start, so as to exchange the heat generated by the working of the battery 110 to the heat dissipation module 120 through the first cooling pipeline 141, the heat exchange module 120 and the refrigerant pipeline 173, and exchange the heat generated by the working of the charging module 130 to the heat dissipation module 120 through the second cooling pipeline 151, the heat exchange module 120 and the refrigerant pipeline 173.

[0104] In the case that the charging module 130 does not work and the battery 110 works, the control module 180 controls the first cooling liquid pump 142 to start, the second cooling liquid pump 152 to stop and the compressor 171 to start, so as to exchange the heat generated by the working of the battery 110 to the heat dissipation module 120 through the first cooling pipeline 141, the heat exchange module 120 and the refrigerant pipeline 173.

[0105] In the case that the temperature of the charging module 130 is not lower than the second temperature threshold and the temperature of the battery 110 is lower than the first temperature threshold, the control module 180 controls the first cooling liquid pump 142 to start, the second cooling liquid pump 152 to start and the compressor 171 to stop, so as to exchange the heat of the charging module 130 to the battery 110 through the second cooling pipeline 151, the heat exchange module 120 and the first cooling pipeline 141; the second temperature threshold is not lower than the first temperature threshold.

[0106] In a case where the temperature of the charging module 130 is not lower than the second temperature threshold and the temperature of the battery 110 is not lower than the first temperature threshold, the control module 180 controls the first cooling liquid pump 142 to stop or start, the second cooling liquid pump 152 to start, and the compressor 171 to start, so as to exchange the heat of the charging module 130 to the heat dissipation module 120 at least through the second cooling pipe 151, the heat exchange module 120 and the refrigerant pipe 173.

[0107] In a case where the temperature of the charging module 130 is lower than the second temperature threshold and the temperature of the battery 110 is not lower than the first temperature threshold, the control module 180 controls the first cooling liquid pump 142 to start, the second cooling liquid pump 152 to stop, and the compressor 171 to start, so as to exchange the heat of the battery 110 to the heat dissipation module 120 through the first cooling pipe 141, the heat exchange module 120 and the refrigerant pipe 173.

[0108] Here, the first temperature threshold is the minimum temperature threshold at which the battery 110 can work normally, so in a case where the battery 110 does not work, if the temperature of the battery 110 is lower than the first temperature threshold, the battery 110 needs to be heated to ensure that the battery 110 can work normally when it starts to work.

[0109] Here, the second temperature threshold is a temperature threshold at which the charging module 130 needs to be cooled, in a case where the temperature of the charging module 130 is not lower than the second temperature threshold, the charging module 130 needs to be cooled, and in a case where the temperature of the charging module 130 is lower than the second temperature threshold, the charging module 130 does not need to be cooled.

[0110] It should be noted that in a case where the temperature of the charging module 130 is not lower than the second temperature threshold, the charging module 130 can be working or can not be working; in a case where the temperature of the battery 110 is lower than the first temperature threshold, the battery 110 can be working or can not be working.

[0111] In some embodiments, in a case where the charging module needs to be cooled and the battery needs to be heated, the heat of the charging module is exchanged to the battery through the heat exchange module, so as to improve the heat utilization rate of the charging module and reduce the loss of heat.

[0112] In some embodiments, the heat exchange module comprises a three-loop heat exchanger;

[0113] The three-loop heat exchanger comprises a first heat exchange loop, a second heat exchange loop and a third heat exchange loop;

[0114] The first heat exchange loop is in communication with the first cooling pipe, the second heat exchange loop is in communication with the second cooling pipe, and the third heat exchange loop is in communication with the refrigerant pipe.

[0115] In some embodiments, the heat exchange module can include a three-loop heat exchanger, wherein the first heat exchange loop realizes heat exchange between the battery and the heat exchange module; the second heat exchange loop realizes heat exchange between the charging module and the heat exchange module; and the third heat exchange loop realizes heat exchange between the heat exchange module and the heat dissipation module.

[0116] In the embodiments of the present disclosure, the first heat exchange loop is in communication with the first cooling pipeline and exchanges heat with the battery; the second heat exchange loop is in communication with the second cooling pipeline and exchanges heat with the charging module; and the third heat exchange loop is in communication with the refrigerant pipeline and exchanges heat with the heat dissipation module. In this way, the three-loop heat exchanger realizes heat exchange between the battery, the charging module and the heat dissipation module, so that the loss of heat or cold is less.

[0117] In some embodiments, the three-loop heat exchanger includes a first heat exchange layer, a second heat exchange layer and a third heat exchange layer arranged in layers; the first heat exchange loop is arranged in the first heat exchange layer, the second heat exchange loop is arranged in the second heat exchange layer, and the third heat exchange loop is arranged in the third heat exchange layer.

[0118] In some embodiments, the first heat exchange layer, the second heat exchange layer and the third heat exchange layer are respectively provided with the first heat exchange loop, the second heat exchange loop and the third heat exchange loop; and one passage is respectively arranged in the first heat exchange loop, the second heat exchange loop and the third heat exchange loop to connect the first liquid cooling loop, the second liquid cooling loop and the refrigerant loop.

[0119] In some embodiments, the heights of the first heat exchange layer, the second heat exchange layer and the third heat exchange layer are staggered with each other and are thermally conductive, and when the cooling liquid flows through the heat exchange loops, heat is transferred through the thermal conductivity of the heat exchange layers.

[0120] In some embodiments, the present disclosure does not limit the hierarchical relationship of the heights of the first heat exchange layer, the second heat exchange layer and the third heat exchange layer.

[0121] In the embodiments of the present disclosure, the first heat exchange layer, the second heat exchange layer and the third heat exchange layer are arranged in layers, the first heat exchange loop is arranged in the first heat exchange layer, the second heat exchange loop is arranged in the second heat exchange layer, and the third heat exchange loop is arranged in the third heat exchange layer. In this way, heat transfer between the first heat exchange loop, the second heat exchange loop and the third heat exchange loop can be realized, and the first heat exchange layer, the second heat exchange layer and the third heat exchange layer arranged in layers can simplify the implementation of the first heat exchange loop, the second heat exchange loop and the third heat exchange loop.

[0122] In some embodiments, the heat exchange module comprises a first two-circuit heat exchanger, a second two-circuit heat exchanger and a third two-circuit heat exchanger; the two heat exchange circuits in the first two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the second cooling pipeline; the two heat exchange circuits in the second two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the refrigerant pipeline; and the two heat exchange circuits in the third two-circuit heat exchanger are respectively in communication with the second cooling pipeline and the refrigerant pipeline.

[0123] In some embodiments, the first two-circuit heat exchanger realizes heat exchange between the first cooling pipeline and the second cooling pipeline; the second two-circuit heat exchanger realizes heat exchange between the first cooling pipeline and the refrigerant pipeline; and the third two-circuit heat exchanger realizes heat exchange between the second cooling pipeline and the refrigerant pipeline.

[0124] In some embodiments, in order to reduce heat loss, bypass channels are respectively arranged on the first cooling pipeline, the second cooling pipeline and the refrigerant pipeline, and when the first cooling pipeline, the second cooling pipeline or the refrigerant pipeline does not need heat exchange, the corresponding cooling medium flows into the bypass channel and does not flow into the heat exchange circuit in the heat exchange module.

[0125] In the embodiments of the present disclosure, the two heat exchange circuits in the first two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the second cooling pipeline, and heat exchange between the first cooling pipeline and the second cooling pipeline is realized; the two heat exchange circuits in the second two-circuit heat exchanger are respectively in communication with the first cooling pipeline and the refrigerant pipeline, and heat exchange between the first cooling pipeline and the refrigerant pipeline is realized; and the two heat exchange circuits in the third two-circuit heat exchanger are respectively in communication with the second cooling pipeline and the refrigerant pipeline, and heat exchange between the second cooling pipeline and the refrigerant pipeline is realized.

[0126] In some embodiments, the second cooling pipeline is wound around the charging wire harness.

[0127] In the embodiments of the present disclosure, the second cooling pipeline is wound around the charging wire harness. In this way, the charging wire harness and the charging gun can be uniformly cooled by the second cooling pipeline.

[0128] In some embodiments, FIG. 9 is a schematic diagram of the circuit connection of the energy storage charging pile provided by the embodiments of the present disclosure, as shown in FIG. 9, the energy storage charging pile further comprises an energy storage converter 192 and an energy storage interface 402, the energy storage interface 402 is used for electrically connecting with the power grid 401, and the energy storage converter 192 is electrically connected with the battery 110 and the energy storage interface 402 respectively to convert the input or output electric energy of the battery 110.

[0129] In some embodiments, the energy storage converter 192 can be an AC / DC converter, the energy storage interface 402 is connected with the power grid 401, and the energy storage converter 192 is used for converting electric energy to deliver the electric energy in the power grid 401 to the battery 110.

[0130] In some embodiments, the electrical energy in the battery 110 can be converted by the energy storage converter 192, and the electrical energy in the battery 110 can be transmitted to the power grid 401 through the energy storage interface 402.

[0131] FIG. 10 is a schematic diagram of a composition structure of an energy storage charging pile thermal management system according to an embodiment of the present disclosure. The first cooling pipeline 141 passes through the battery 110, the charging converter 191, the energy storage converter 192, and the heat exchange module 120.

[0132] In some embodiments, the battery 110, the charging converter 191, and the energy storage converter 192 can be temperature controlled by the first cooling pipeline.

[0133] In the present disclosure, the battery, the charging converter, and the energy storage converter are temperature controlled by heat exchange between the first cooling pipeline and the heat exchange module. In this way, the temperature of the battery, the charging converter, and the energy storage converter can be controlled within a suitable range.

[0134] The present disclosure provides an energy storage charging pile. FIG. 11 is a schematic diagram of a composition structure of an energy storage charging pile according to an embodiment of the present disclosure. As shown in FIG. 11, the energy storage charging pile 190 includes the charging module 130, the battery 110, the charging converter 191, and the energy storage charging pile thermal management system 100 described above. The charging converter 191 is electrically connected to the battery 110. The charging module 130 includes the charging gun 131 and the charging wire harness 132. The charging gun 131 is electrically connected to the charging converter 191 through the charging wire harness 132. The charging converter 191 is configured to convert the electrical energy input by the charging gun 131 and transmit the converted electrical energy to the battery 110 through the charging wire harness 132, or convert the electrical energy output by the battery 110 and transmit the converted electrical energy to the charging gun 131 through the charging wire harness 132.

[0135] In some embodiments, the energy storage charging pile 190 can further include the energy storage converter 192.

[0136] In some embodiments, the charging gun 131 transmits the electrical energy from the energy storage charging pile 190 to the battery of the electric vehicle through the charging wire harness 132.

[0137] In some embodiments, as shown in FIG. 9, the energy storage interface 402 is electrically connected to the power grid 401 through a DC bus 403, and the energy storage converter 192 is electrically connected to the battery 110 and the energy storage interface 402 respectively to convert the input or output power of the battery 110; the first cooling pipeline 141 passes through the battery 110, the charging converter 191, the energy storage converter 192, and the heat exchange module 120; the charging converter 191 is electrically connected to the battery 110, and the charging gun 131 is electrically connected to the charging converter 191 through the charging wire harness 132; the charging converter 191 is used to convert the power input by the charging gun 131 and then transmit the power to the battery 110 through the charging wire harness 132, or convert the power output by the battery 110 and then transmit the power to the charging gun 131 through the charging wire harness 132.

[0138] The application of the embodiments of the present disclosure in actual scenarios is described below.

[0139] The embodiments of the present disclosure provide a thermal management system for an energy storage charging pile, which separates the thermal management pipelines of the energy storage system and the charging system, uses insulated cooling oil to cool the charging gun, solves the electric shock safety accidents caused by the leakage of the cooling liquid of the charging gun, and realizes independent heating / cooling control of the thermal management of the two systems, that is, heating one system while cooling the other system.

[0140] The energy storage charging pile thermal management system can control the energy storage charging pile thermal management system to realize four modes, i.e., the battery heating and charging gun cooling mode, the battery cooling and charging gun cooling mode, the battery non-working and charging gun cooling mode, and the charging gun non-working and battery cooling mode.

[0141] Battery heating and charging gun cooling mode: FIG. 12 is a working schematic diagram of the energy storage charging pile thermal management system in a battery heating and charging gun cooling mode according to an embodiment of the present disclosure, as shown in FIG. 12, the water pump 305 drives the first cooling liquid to flow through the battery module 301, the DC / DC 311, the AC / DC 312, and the heat exchanger 303 in the liquid cooling pipeline 304, the oil pump 307 drives the second cooling liquid to flow through the charging gun 131 and the heat exchanger 303 in the oil cooling pipeline 306, and the compressor 171 is not started, the heat generated by the working of the charging gun 131 is exchanged to the liquid cooling pipeline 304 of the energy storage system through the three-loop heat exchanger, realizing the heating of the battery module 301, the DC / DC 311, or the AC / DC 312 in the energy storage system, and the cooling of the charging gun in the charging system.

[0142] Battery cooling charging gun cooling mode: FIG. 13 is a working schematic diagram of the energy storage charging pile thermal management system in a battery cooling charging gun cooling mode provided by the embodiment of the present disclosure, as shown in FIG. 13, the water pump 305 drives the first cooling liquid to flow through the battery module 301, the DC / DC 311, the AC / DC 312 and the heat exchanger 303 in the liquid cooling pipeline 304, the oil pump 307 drives the second cooling liquid to flow through the charging gun 131 and the heat exchanger 303 in the oil cooling pipeline 306, the compressor 171 is started, the heat of the charging gun 131, the battery module 301, the DC / DC 311 and the AC / DC 312 is exchanged to the heat dissipation fan 310 through the three-loop heat exchanger, and the cooling function of the battery module 301, the DC / DC 311, the AC / DC 312 and the charging gun 131 is realized through the condenser 172 and the heat dissipation fan 310.

[0143] Battery non-working charging gun cooling mode: FIG. 14 is a working schematic diagram of the energy storage charging pile thermal management system in a battery non-working charging gun cooling mode provided by the embodiment of the present disclosure, as shown in FIG. 14, the water pump 305 is stopped, the oil pump 307 drives the second cooling liquid to flow through the charging gun 131 and the heat exchanger 303 in the oil cooling pipeline 306, the compressor 171 is started, the heat of the charging gun 131 is exchanged to the heat dissipation fan 310 through the three-loop heat exchanger, and the cooling function of the charging gun 131 is realized through the condenser 172 and the heat dissipation fan 310.

[0144] Charging gun non-working battery cooling mode: FIG. 15 is a working schematic diagram of the energy storage charging pile thermal management system in a charging gun non-working battery cooling mode provided by the embodiment of the present disclosure, as shown in FIG. 15, the water pump 305 drives the first cooling liquid to flow through the battery module 301, the DC / DC 311, the AC / DC 312 and the heat exchanger 303 in the liquid cooling pipeline 304, the oil pump 307 is stopped, and the compressor 171 is started, and the cooling function of the battery module 301, the DC / DC 311 or the AC / DC 312 is realized through the condenser 172 and the heat dissipation fan 310.

[0145] In the embodiment of the present disclosure, the thermal management pipelines of the energy storage system and the charging system are separated, the charging gun is cooled by using insulated cooling oil, the energy storage system is cooled by using cooling liquid, the electric shock safety accident caused by the leakage of the cooling liquid of the charging gun is solved, and in the battery heating charging gun cooling mode, the independent thermal management pipelines can simultaneously heat one system and cool the other system.

[0146] In the embodiment of the present disclosure, in the battery heating charging gun cooling mode, the heat generated by the working of the charging gun can be transferred to the energy storage battery through the oil cooling pipeline, the liquid cooling pipeline and the heat exchanger, and the low-energy-consumption energy storage battery heating function is realized.

[0147] In the description of the disclosure, the description of the terms "in an embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the disclosure. In the disclosure, the illustrative expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the disclosure and the features of different embodiments or examples can be combined by those skilled in the art without contradiction, as long as they do not contradict each other.

[0148] The above is only an exemplary embodiment of the disclosure and is not intended to limit the disclosure. Those skilled in the art can make various modifications and changes to the disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the disclosure is included in the protection scope of the disclosure.

Claims

1. An energy storage charging pile thermal management system, comprising: a first liquid cooling circuit, a second liquid cooling circuit, and a heat exchange module; wherein the first liquid cooling circuit comprises a first cooling pipeline, the first cooling pipeline passes through a battery in the energy storage charging pile and the heat exchange module, and a first cooling liquid in the first cooling pipeline is an insulating liquid or a non-insulating liquid; the second liquid cooling circuit comprises a second cooling pipeline, the second cooling pipeline passes through a charging module in the energy storage charging pile and the heat exchange module, and a second cooling liquid in the second cooling pipeline is an insulating liquid; the first cooling pipeline and the second cooling pipeline exchange heat through the heat exchange module; wherein the charging module comprises a charging gun and a charging wire harness, the charging gun is electrically connected to the battery through the charging wire harness, and the second cooling pipeline is arranged along the charging wire harness and passes through the charging gun.

2. The energy storage charging station thermal management system of claim 1, wherein, the first cooling liquid comprises water, and the second cooling liquid comprises cooling oil.

3. The energy storage charging station thermal management system of claim 1 or 2, wherein, The energy storage charging pile thermal management system further comprises a charging converter, and the first cooling pipeline further passes through the charging converter; wherein the charging converter is electrically connected to the battery, the charging gun is electrically connected to the charging converter through the charging wire harness, and the charging converter is used to convert the electric energy input by the charging gun and then transmit the electric energy to the battery through the charging wire harness, or convert the electric energy output by the battery and then transmit the electric energy to the charging gun through the charging wire harness.

4. The energy storage charging station thermal management system of claim 3, wherein, The first cooling pipeline comprises a first flow channel passing through the battery, a second flow channel passing through the charging converter, and a third flow channel passing through the heat exchange module, the first flow channel and the second flow channel are connected in parallel, and the first flow channel and the second flow channel are connected in series with the third flow channel respectively.

5. The energy storage charging station thermal management system of any one of claims 1 to 4, wherein, The energy storage charging pile thermal management system further comprises: a refrigerant circuit and a heat dissipation module; the refrigerant circuit comprises a compressor, a condenser, and a refrigerant pipeline, the refrigerant pipeline passes through the heat exchange module and the heat dissipation module, and the compressor is used to drive the refrigerant in the refrigerant pipeline to circulate and flow; the refrigerant pipeline exchanges heat in the first cooling pipeline and / or the second cooling pipeline to the heat dissipation module through the heat exchange module.

6. The energy storage charging station thermal management system of claim 4, wherein, The heat exchange module comprises a three-circuit heat exchanger; the three-circuit heat exchanger comprises a first heat exchange circuit, a second heat exchange circuit, and a third heat exchange circuit; the first heat exchange circuit is in communication with the first cooling pipeline, the second heat exchange circuit is in communication with the second cooling pipeline, and the third heat exchange circuit is in communication with the refrigerant pipeline.

7. The energy storage charging station thermal management system of claim 5, wherein, The three-circuit heat exchanger comprises a first heat exchange layer, a second heat exchange layer, and a third heat exchange layer arranged in layers; the first heat exchange circuit is arranged in the first heat exchange layer, the second heat exchange circuit is arranged in the second heat exchange layer, and the third heat exchange circuit is arranged in the third heat exchange layer.

8. The energy storage charging pile thermal management system according to claim 4, wherein the heat exchange module comprises a first two-circuit heat exchanger, a second two-circuit heat exchanger, and a third two-circuit heat exchanger; two heat exchange circuits in the first two-circuit heat exchanger are in communication with the first cooling pipeline and the second cooling pipeline respectively; The two heat exchange circuits in the second two-circuit heat exchanger are respectively communicated with the first cooling pipeline and the refrigerant pipeline; The two heat exchange circuits in the third two-circuit heat exchanger are respectively communicated with the second cooling pipeline and the refrigerant pipeline.

9. The energy storage charging station thermal management system of any one of claims 1 to 8, wherein, The second cooling pipeline is arranged around the charging harness.

10. The energy storage charging station thermal management system of any one of claims 1 to 9, wherein, The first liquid cooling circuit further comprises a first cooling liquid pump configured to drive the circulation of the first cooling liquid in the first cooling pipeline.

11. The energy storage charging station thermal management system of any one of claims 1 to 10, wherein, The second liquid cooling circuit further comprises a second cooling liquid pump configured to drive the circulation of the second cooling liquid in the second cooling pipeline.

12. The energy storage charging station thermal management system of any one of claims 1 to 11, wherein, The system further comprises: a control module configured to control the start / stop state of the first cooling liquid pump, the second cooling liquid pump and the compressor according to the working state of the charging module, the working state of the battery, the temperature of the charging module and / or the temperature of the battery.

13. The energy storage charging station thermal management system of any one of claim 12, wherein, The control module is further configured to: when the charging module is working and the battery is not working, control the first cooling liquid pump to start, the second cooling liquid pump to start and the compressor to stop, so as to exchange the heat generated by the working charging module to the battery through the second cooling pipeline, the heat exchange module and the first cooling pipeline, or control the first cooling liquid pump to stop, the second cooling liquid pump to start and the compressor to start, so as to exchange the heat generated by the working charging module to the heat dissipation module through the second cooling pipeline, the heat exchange module and the refrigerant pipeline.

14. The energy storage charging station thermal management system of any one of claim 12, wherein, The control module is further configured to: when the charging module and the battery are both working, control the first cooling liquid pump to start, the second cooling liquid pump to start and the compressor to start, so as to exchange the heat generated by the working battery to the heat dissipation module through the first cooling pipeline, the heat exchange module and the refrigerant pipeline, and exchange the heat generated by the working charging module to the heat dissipation module through the second cooling pipeline, the heat exchange module and the refrigerant pipeline.

15. The energy storage charging station thermal management system of any one of claim 12, wherein, The control module is further configured to: when the charging module is not working and the battery is working, control the first cooling liquid pump to start, the second cooling liquid pump to stop and the compressor to start, so as to exchange the heat generated by the working battery to the heat dissipation module through the first cooling pipeline, the heat exchange module and the refrigerant pipeline.

16. The energy storage charging station thermal management system of any one of claim 12, wherein, The control module is further configured to: when the temperature of the charging module is not lower than a second temperature threshold and the temperature of the battery is lower than the first temperature threshold, control the first cooling liquid pump to start, the second cooling liquid pump to start and the compressor to stop, so as to exchange the heat of the charging module to the battery through the second cooling pipeline, the heat exchange module and the first cooling pipeline; the second temperature threshold is not lower than the first temperature threshold.

17. The energy storage charging station thermal management system of any one of claim 12, wherein, The control module is further configured to: In a case that the temperature of the charging module is not lower than the second temperature threshold and the temperature of the battery is not lower than the first temperature threshold, the first cooling liquid pump is controlled to be stopped or started, the second cooling liquid pump is controlled to be started, and the compressor is controlled to be started, so as to exchange the heat of the charging module to the heat dissipation module at least through the second cooling pipeline, the heat exchange module and the refrigerant pipeline.

18. The energy storage charging station thermal management system of any one of claim 12, wherein, The control module is further configured to: In a case that the temperature of the charging module is lower than the second temperature threshold and the temperature of the battery is not lower than the first temperature threshold, the first cooling liquid pump is controlled to be started, the second cooling liquid pump is controlled to be stopped, and the compressor is controlled to be started, so as to exchange the heat of the battery to the heat dissipation module through the first cooling pipeline, the heat exchange module and the refrigerant pipeline.

19. An energy storage charging pile, comprising: a charging module, a battery, a charging inverter and the energy storage charging pile thermal management system according to any one of claims 1 to 9; wherein the charging inverter is electrically connected with the battery, the charging module comprises a charging gun and a charging wire harness, and the charging gun is electrically connected with the charging inverter through the charging wire harness; the charging inverter is configured to convert the electric energy input by the charging gun and then transmit the converted electric energy to the battery through the charging wire harness, or convert the electric energy output by the battery and then transmit the converted electric energy to the charging gun through the charging wire harness.

20. The energy storage charging station of claim 19, wherein, The energy storage charging pile further comprises an energy storage inverter and an energy storage interface, the energy storage interface is configured to be electrically connected with a power grid, and the energy storage inverter is electrically connected with the battery and the energy storage interface respectively to convert the electric energy input or output by the battery.

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