Energy storage device and thermal management method thereof, energy storage module, energy storage system and charging network

Abstract

The application provides an energy storage device, an energy storage module, an energy storage system, a charging network and a heat management method thereof. The energy storage device comprises an energy storage module, a heat exchange module, a heat dissipation module and a heat exchange pipeline assembly. The energy storage module comprises a plurality of battery devices. At least part of the heat exchange module is embedded in a ground source to exchange heat with the ground source. At least part of the heat dissipation module is exposed to an atmospheric source to exchange heat with the atmospheric source. The heat exchange pipeline assembly is used to circulate a heat exchange medium. The heat exchange pipeline assembly comprises a main heat exchange pipeline, a first bypass pipeline, a second bypass pipeline and a third bypass pipeline. The heat exchange module and the heat dissipation module can exchange heat with the battery devices. The energy storage device provided by the application has low operating power consumption, thereby effectively improving the energy storage efficiency of the energy storage device.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, specifically to an energy storage device and its thermal management method, an energy storage module, an energy storage system, and a charging network. Background Technology

[0002] With the promotion and popularization of the concept of green development, new energy batteries are being used more and more widely in life and industry, and energy storage equipment is also being used in more and more scenarios.

[0003] Energy storage devices typically consist of multiple battery units. The temperature of these battery units significantly impacts their performance. Therefore, energy storage devices usually incorporate heat exchangers to cool the battery units and ensure they operate at suitable temperatures. However, traditional heat exchangers consume considerable power, which hinders the improvement of energy storage efficiency. Summary of the Invention

[0004] The purpose of this application is to provide an energy storage device and its thermal management method, energy storage module, energy storage system and charging network, so as to solve the technical problem of high power consumption of the heat exchange device of the energy storage device in the related art.

[0005] To achieve the above objectives, the technical solution adopted in this application embodiment is: to provide an energy storage device, comprising:

[0006] Energy storage module, comprising multiple battery devices;

[0007] A heat exchange module, at least partially buried in a ground source for heat exchange with the ground source;

[0008] A heat dissipation module, which is at least partially exposed to an atmospheric source for heat exchange with the atmospheric source;

[0009] A heat exchange piping assembly is used to circulate the heat exchange medium. The heat exchange piping assembly includes a main heat exchange piping, a first bypass pipe, a second bypass pipe, and a third bypass pipe. The main heat exchange piping is used to connect the energy storage module and the heat exchange module, so that the heat exchange module and the battery device can exchange heat through the main heat exchange piping. The first bypass pipe is used to connect the main heat exchange piping to the heat exchange inlet of the heat dissipation module. The second bypass pipe is used to connect the main heat exchange piping to the heat exchange outlet of the heat dissipation module. The third bypass pipe is used to connect the main heat exchange piping to the second bypass pipe. The heat exchange medium can flow through the heat exchange piping in sequence through the first bypass pipe, the heat dissipation module, the second bypass pipe, and the third bypass pipe, and then return to the main heat exchange piping and flow through the battery device, so that the heat dissipation module and the battery device can exchange heat.

[0010] The energy storage device provided in this application embodiment has at least the following beneficial effects: The heat exchange module and the battery device in the energy storage device provided in this application embodiment can exchange heat through the main heat exchange pipeline, so that the battery device can exchange heat with the ground source. Alternatively, the heat exchange medium can flow through the self-heat exchange pipeline in sequence through the first bypass pipe, the heat dissipation module, the second bypass pipe and the third bypass pipe and then return to the main heat exchange pipeline and flow through the battery device, so that the heat dissipation module and the battery device can exchange heat. This allows the heat of the battery device to be transferred to the atmospheric source through the heat dissipation module. In this way, even if the heat dissipation module is a water-cooled unit, the operating time of the water-cooled unit can be greatly reduced. It is even possible to use other heat dissipation modules with lower power consumption to replace the water-cooled unit, thereby effectively reducing the operating power consumption of the energy storage device and thus effectively improving the energy storage efficiency of the energy storage device.

[0011] In some embodiments of this application, the energy storage device has a first operating condition and a second operating condition. In the first operating condition, the heat exchange module and the battery device exchange heat through the main heat exchange pipeline. In the second operating condition, the heat exchange medium flows through the self-heat exchange pipeline in sequence through the first bypass pipe, the heat dissipation module, the second bypass pipe and the third bypass pipe, and then flows back to the main heat exchange pipeline and through the battery device, so that the heat dissipation module and the battery device exchange heat.

[0012] By adopting the above technical solutions, energy storage devices can switch to corresponding operating conditions according to different working environment conditions, thereby further reducing the operating power consumption of energy storage devices.

[0013] In some embodiments of this application, the energy storage device also has a third operating condition. In the third operating condition, the heat exchange module and the battery device exchange heat through the main heat exchange pipeline, and the heat exchange medium flows through the self-heat exchange pipeline in sequence through the first bypass pipe, the heat dissipation module, the second bypass pipe and the third bypass pipe and then flows back to the main heat exchange pipeline and through the battery device, so that the heat dissipation module and the battery device exchange heat.

[0014] By adopting the above technical solution, the temperature of the battery device can be regulated by both heat exchange module and heat dissipation module. Even if the heat dissipation module is a water-cooled unit, the operating power of the water-cooled unit can be significantly reduced, thereby further reducing the operating power consumption of the energy storage device and further improving the energy storage efficiency of the energy storage device.

[0015] In some embodiments of this application, the energy storage device also has a fourth operating condition. In the fourth operating condition, the heat exchange medium flows through the self-heat exchange pipeline in sequence through the first bypass pipe, the heat dissipation module and the second bypass pipe and then flows back to the main heat exchange pipeline so that the heat exchange module and the heat dissipation module can exchange heat.

[0016] By adopting the above technical solution, the heat accumulated by the ground source can be transferred to the atmospheric source through the heat exchange module and the heat dissipation module, effectively reducing the temperature of the ground source and thus effectively improving the heat dissipation efficiency of the battery device.

[0017] In some embodiments of this application, the main heat exchange pipeline includes a first circulation pipeline and a second circulation pipeline. The heat exchange module is disposed on the first circulation pipeline, and multiple battery devices are disposed on the second circulation pipeline. The heat exchange medium in the first circulation pipeline is used to exchange heat with the heat exchange medium in the second circulation pipeline. The first bypass pipe, the second bypass pipe, and the third bypass pipe are all connected to the second circulation pipeline.

[0018] By adopting the above technical solution, it is easy to realize heat exchange between the heat exchange module and the battery device.

[0019] In some embodiments of this application, the heat exchange piping assembly further includes a heat exchanger having a first heat exchange side and a second heat exchange side, a first circulation pipe connected to the first heat exchange side, and a second circulation pipe connected to the second heat exchange side, wherein the first heat exchange side is used to exchange heat with the second heat exchange side.

[0020] By adopting the above technical solution, it is convenient for the heat exchange medium in the first circulation pipeline to exchange heat with the heat exchange medium in the second circulation pipeline.

[0021] In some embodiments of this application, there are multiple energy storage modules. The second circulation pipeline includes a first manifold, a second manifold, and multiple first branch pipes. One end of each of the multiple first branch pipes is connected to the heat exchange outlet of the second heat exchange side through the first manifold, and the other end of each of the multiple first branch pipes is connected to the heat exchange inlet of the second heat exchange side through the second manifold. The multiple energy storage modules are arranged in a one-to-one correspondence with the multiple first branch pipes.

[0022] By adopting the above technical solution, heat exchange modules can be used to exchange heat between multiple energy storage modules, effectively simplifying the overall structure of the energy storage device.

[0023] In some embodiments of this application, the energy storage device further includes a first power module, which is disposed on a first manifold or a second manifold to drive the heat exchange medium to circulate in a second circulation pipeline.

[0024] By adopting the above technical solution, the heat exchange medium can be driven to flow through multiple energy storage modules through the first power module, thereby further reducing the operating power consumption of the energy storage device and further improving the energy storage efficiency of the energy storage device.

[0025] In some embodiments of this application, the energy storage device further includes a plurality of first power modules, which are configured one-to-one with a plurality of first branch pipes to drive the heat exchange medium to circulate in the second circulation pipeline.

[0026] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding energy storage module through each first power module. Even if the first power module on a certain first branch pipe fails, it will not affect the flow of the heat exchange medium on other first branch pipes, thereby effectively improving the reliability of the energy storage device.

[0027] In some embodiments of this application, the energy storage device further includes a second power module disposed on the first circulation pipeline to drive the heat exchange medium to circulate in the first circulation pipeline.

[0028] By adopting the above technical solution, it is easy to drive the heat exchange medium to circulate in the first circulation pipeline.

[0029] In some embodiments of this application, there are multiple energy storage modules, multiple heat exchangers, and multiple second circulation pipelines. Multiple energy storage modules are configured in one-to-one correspondence with multiple second circulation pipelines, multiple second circulation pipelines are configured in one-to-one correspondence with multiple second heat exchange sides, and multiple first heat exchange sides are connected to the first circulation pipelines.

[0030] By adopting the above technical solution, each energy storage module can exchange heat with the heat exchange module through the corresponding heat exchanger. Even if the heat exchanger corresponding to a certain second circulation pipeline fails, it will not affect the energy storage modules on other second circulation pipelines from exchanging heat with the heat exchange module through the corresponding heat exchanger, thereby effectively improving the reliability of the energy storage equipment.

[0031] In some embodiments of this application, the energy storage device further includes a plurality of first power modules, which are configured one-to-one with a plurality of second circulation pipelines to drive the heat exchange medium to circulate in the second circulation pipelines.

[0032] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding energy storage module through each first power module. Even if the first power module on a certain second circulation pipeline fails, it will not affect the flow of the heat exchange medium in other second circulation pipelines, thereby effectively improving the reliability of the energy storage device.

[0033] In some embodiments of this application, the first circulation pipeline includes a third manifold, a fourth manifold, a plurality of first liquid outlet pipes, and a plurality of first liquid return pipes. One end of each of the plurality of first liquid outlet pipes is connected to the heat exchange outlet of the heat exchange module through the third manifold, and the other end of each of the plurality of first liquid outlet pipes is connected to the heat exchange inlet of the plurality of first heat exchange sides in a corresponding manner. One end of each of the plurality of first liquid return pipes is connected to the heat exchange inlet of the heat exchange module through the fourth manifold, and the other end of each of the plurality of first liquid return pipes is connected to the heat exchange outlet of the plurality of first heat exchange sides in a corresponding manner.

[0034] By adopting the above technical solution, it is easy to connect the heat exchange module to multiple heat exchangers.

[0035] In some embodiments of this application, the heat exchange module further includes a second power module, which is disposed on the third or fourth manifold to drive the heat exchange medium to circulate in the first circulation pipeline.

[0036] By adopting the above technical solution, the heat exchange medium can be driven to flow through multiple heat exchangers by the second power module, thereby further reducing the operating power consumption of the energy storage device and further improving the energy storage efficiency of the energy storage device.

[0037] In some embodiments of this application, the energy storage device further includes a plurality of second power modules, which are configured one-to-one with a plurality of first liquid outlet pipes, or the plurality of second power modules are configured one-to-one with a plurality of first liquid return pipes, so as to drive the heat exchange medium to circulate in the first circulation pipeline.

[0038] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding heat exchanger through each second power module. Even if the second power module on a certain first liquid outlet pipe or first liquid return pipe fails, it will not affect the flow of the heat exchange medium on other first liquid outlet pipes or first liquid return pipes, thereby effectively improving the reliability of the energy storage device.

[0039] In some embodiments of this application, there are multiple heat dissipation modules, and each heat dissipation module is connected to a multiple first branch pipe in a one-to-one correspondence.

[0040] By adopting the above technical solution, it is convenient for the heat dissipation module to exchange heat with the battery device and / or heat exchange module under the corresponding operating conditions.

[0041] In some embodiments of this application, there are multiple heat dissipation modules, and each heat dissipation module is connected to a multiple second circulation pipeline.

[0042] By adopting the above technical solution, it is convenient for the heat dissipation module to exchange heat with the battery device and / or heat exchange module under the corresponding operating conditions.

[0043] In some embodiments of this application, the first bypass pipe has a first inlet end and a first outlet end. The first inlet end is connected to the second circulation pipe and is located upstream of the energy storage module. The first outlet end is connected to the heat exchange inlet of the heat dissipation module. The second bypass pipe has a second inlet end and a second outlet end. The second outlet end is connected to the second circulation pipe and is located downstream of the energy storage module. The second inlet end is connected to the heat exchange outlet of the heat dissipation module. The third bypass pipe has a third inlet end and a third outlet end. The third inlet end is connected to the second bypass pipe. The third outlet end is connected to the second circulation pipe and is located between the first inlet end and the upstream side of the energy storage module.

[0044] By adopting the above technical solution, the flow path of the heat exchange medium can be changed according to different operating conditions, which facilitates the switching of operating conditions of energy storage equipment.

[0045] In some embodiments of this application, the energy storage device further includes a first switching valve and a second switching valve, with the second outlet end connected to the second circulation pipeline via the first switching valve, and the third outlet end connected to the second circulation pipeline via the second switching valve.

[0046] By adopting the above technical solution, the first switching valve and the second switching valve can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0047] In some embodiments of this application, the first switching valve has a first valve port, a second valve port and a third valve port, the first valve port and the second valve port are both connected to the second circulation pipeline, and the third valve port is connected to the second outlet end. The second switching valve has a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port and the fifth valve port are both connected to the second circulation pipeline, and the sixth valve port is connected to the third outlet end.

[0048] By adopting the above technical solution, the valve ports of the first switching valve and the second switching valve can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0049] In some embodiments of this application, the energy storage device further includes a first switching valve and a second switching valve, with the first inlet end connected to the second circulation pipeline through the first switching valve, and the third inlet end connected to the second bypass pipeline through the second switching valve.

[0050] By adopting the above technical solution, the first switching valve and the second switching valve can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0051] In some embodiments of this application, the first switching valve has a first valve port, a second valve port and a third valve port, the first valve port and the second valve port are both connected to the second circulation pipeline, and the third valve port is connected to the first inlet end. The second switching valve has a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port and the fifth valve port are both connected to the second bypass pipe, and the sixth valve port is connected to the third inlet end.

[0052] By adopting the above technical solution, the valve ports of the first switching valve and the second switching valve can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0053] In some embodiments of this application, the main heat exchange pipeline includes a third circulation pipeline, which is used to connect the heat exchange module and the battery device. The first bypass pipe, the second bypass pipe and the third bypass pipe are all connected to the third circulation pipeline.

[0054] By adopting the above technical solution, it is easy to realize heat exchange between the heat exchange module and the battery device.

[0055] In some embodiments of this application, there are multiple energy storage modules. The third circulation pipeline includes a second outlet pipe, a second return pipe, and multiple second branch pipes. One end of each of the multiple second branch pipes is connected to the heat exchange outlet of the heat exchange module through the second outlet pipe, and the other end of each of the multiple second branch pipes is connected to the heat exchange inlet of the heat exchange module through the second return pipe. The multiple energy storage modules are configured in a one-to-one correspondence with the multiple second branch pipes.

[0056] By adopting the above technical solution, heat exchange modules can be used to exchange heat between multiple energy storage modules, effectively simplifying the overall structure of the energy storage device.

[0057] In some embodiments of this application, the energy storage device further includes a first power module, which is disposed on the second liquid outlet pipe or the second liquid return pipe to drive the heat exchange medium to circulate in the third circulation pipeline.

[0058] By adopting the above technical solution, the heat exchange medium can be driven to flow through multiple energy storage modules through the first power module, thereby further reducing the operating power consumption of the energy storage device and further improving the energy storage efficiency of the energy storage device.

[0059] In some embodiments of this application, the energy storage device further includes a plurality of first power modules, which are configured one-to-one with a plurality of second branch pipes to drive the heat exchange medium to circulate in the third circulation pipeline.

[0060] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding energy storage module through each first power module. Even if the first power module on a certain second branch pipe fails, it will not affect the flow of the heat exchange medium on other second branch pipes, thereby effectively improving the reliability of the energy storage device.

[0061] In some embodiments of this application, there are multiple heat dissipation modules, and each heat dissipation module is connected to a multiple second branch pipe in a one-to-one correspondence.

[0062] By adopting the above technical solution, it is convenient for the heat dissipation module to exchange heat with the battery device and / or heat exchange module under the corresponding operating conditions.

[0063] In some embodiments of this application, the heat exchange pipeline assembly further includes a fourth bypass pipe, and the third circulation pipeline includes a first pipe section and a second pipe section. The first pipe section is connected between the heat exchange outlet of the heat exchange module and the energy storage module, the second pipe section is connected between the heat exchange inlet of the heat exchange module and the energy storage module, and the fourth bypass pipe is connected between the first pipe section and the second pipe section.

[0064] By adopting the above technical solution, it is easy to realize heat exchange between the heat dissipation module and the battery device.

[0065] In some embodiments of this application, the first bypass pipe has a first inlet end and a first outlet end. The first inlet end is connected to the first pipe segment and located between the fourth bypass pipe and the energy storage module. The first outlet end is connected to the heat exchange inlet of the heat dissipation module. The second bypass pipe has a second inlet end and a second outlet end. The second outlet end is connected to the second pipe segment and located between the fourth bypass pipe and the energy storage module. The second inlet end is connected to the heat exchange outlet of the heat dissipation module. The third bypass pipe has a third inlet end and a third outlet end. The third inlet end is connected to the second bypass pipe. The third outlet end is connected to the first pipe segment and located between the first inlet end and the energy storage module.

[0066] By adopting the above technical solution, the flow path of the heat exchange medium can be changed according to different operating conditions, which facilitates the switching of operating conditions of energy storage equipment.

[0067] In some embodiments of this application, the energy storage device further includes a first switching valve, a second switching valve, and a third switching valve. The second outlet end is connected to the second pipe section through the first switching valve, the third outlet end is connected to the first pipe section through the second switching valve, and the fourth bypass pipe is connected to the first pipe section or the second pipe section through the third switching valve.

[0068] By adopting the above technical solution, the first switching valve, the second switching valve, and the third switching valve can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0069] In some embodiments of this application, the first switching valve has a first valve port, a second valve port, and a third valve port, both of which are connected to a second pipe section, and the third valve port is connected to a second outlet end. The second switching valve has a fourth valve port, a fifth valve port, and a sixth valve port, both of which are connected to a first pipe section, and the sixth valve port is connected to a third outlet end. The third switching valve has a seventh valve port, an eighth valve port, and a ninth valve port, both of which are connected to either the first or second pipe section, and the third valve port is connected to a fourth bypass pipe.

[0070] By adopting the above technical solution, the valve ports of the first switching valve, the second switching valve, and the third switching valve can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0071] In some embodiments of this application, the energy storage device further includes a first switching valve, a second switching valve, and a third switching valve. The first inlet end is connected to the first pipe section through the first switching valve, the third inlet end is connected to the second bypass pipe through the second switching valve, and the fourth bypass pipe is connected to the first pipe section or the second pipe section through the third switching valve.

[0072] By adopting the above technical solution, the first switching valve, the second switching valve, and the third switching valve can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0073] In some embodiments of this application, the first switching valve has a first valve port, a second valve port, and a third valve port, both of which are connected to a first pipe section, and the third valve port is connected to a first inlet end. The second switching valve has a fourth valve port, a fifth valve port, and a sixth valve port, both of which are connected to a second bypass pipe, and the sixth valve port is connected to a third inlet end. The third switching valve has a seventh valve port, an eighth valve port, and a ninth valve port, both of which are connected to either the first or second pipe section, and the third valve port is connected to a fourth bypass pipe.

[0074] By adopting the above technical solution, the valve ports of the first switching valve, the second switching valve, and the third switching valve can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of operating conditions of the energy storage device.

[0075] In some embodiments of this application, the battery device includes a battery cell and a thermal management component, the thermal management component being used to exchange heat with the battery cell and connected to the main heat exchange pipeline.

[0076] By adopting the above technical solution, the battery cells can exchange heat with the heat exchange module and / or heat dissipation module through the thermal management component, which facilitates the temperature regulation of the battery cells.

[0077] In some embodiments of this application, the heat dissipation module includes a first temperature detection unit for detecting the temperature of an atmospheric source.

[0078] By adopting the above technical solution, the temperature of the atmospheric source can be monitored in real time, so as to switch the operating conditions of the energy storage equipment according to the temperature changes of the atmospheric source.

[0079] In some embodiments of this application, the heat exchange module includes a second temperature detection unit for detecting the temperature of the ground source.

[0080] By adopting the above technical solution, the temperature of the ground source can be monitored in real time, so as to switch the operating conditions of the energy storage equipment according to the temperature changes of the ground source.

[0081] In some embodiments of this application, multiple battery devices are connected in series via heat exchange tubes; or, the energy storage module includes multiple battery clusters, each battery cluster includes multiple battery devices, the multiple battery clusters are connected in parallel via heat exchange tubes, and the multiple battery devices in the battery clusters are connected in series via heat exchange tubes.

[0082] By adopting the above technical solution, the temperature of the heat exchange medium flowing through each battery device can be kept as consistent as possible, effectively reducing the temperature difference between each battery device, thereby effectively improving the working performance of the energy storage equipment.

[0083] In some embodiments of this application, the heat exchange module includes multiple buried pipes, all of which are buried in the ground source and connected to the main heat exchange pipeline.

[0084] By adopting the above technical solution, the contact area between the heat exchange module and the ground source can be increased, thereby effectively improving the heat exchange efficiency between the heat exchange module and the ground source.

[0085] In some embodiments of this application, the heat dissipation module includes at least one of a heat pipe, a finned heat sink, and a cooling fan.

[0086] By adopting the above technical solutions, the operating power consumption of energy storage devices is further reduced, thereby further improving the energy storage efficiency of energy storage devices.

[0087] Secondly, embodiments of this application provide a thermal management method for an energy storage device as described in any of the above embodiments. The thermal management method includes the following steps:

[0088] When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device is switched to the first operating condition so that the heat exchange path between the heat exchange module and the battery device is connected and the heat exchange path between the heat dissipation module and the battery device is disconnected.

[0089] When the temperature of the atmospheric source is less than or equal to T2, the energy storage device is switched to the second operating condition so that the heat exchange path between the heat exchange module and the battery device is disconnected and the heat exchange path between the heat dissipation module and the battery device is connected, where T2 < T1.

[0090] The thermal management method provided in this application embodiment has at least the following beneficial effects: the thermal management method provided in this application embodiment can switch the energy storage device to the first operating condition or the second operating condition according to the temperature change of the atmospheric source, thereby effectively reducing the operating power consumption of the energy storage device and thus effectively improving the energy storage efficiency of the energy storage device.

[0091] Thirdly, embodiments of this application provide a thermal management method for the energy storage device described in any of the above embodiments, the thermal management method comprising the following steps:

[0092] When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device is switched to the first operating condition so that the heat exchange path between the heat exchange module and the battery device is connected and the heat exchange path between the heat dissipation module and the battery device is disconnected.

[0093] When the temperature of the atmospheric source is less than or equal to T2, the energy storage device is switched to the second operating condition so that the heat exchange path between the heat exchange module and the battery device is disconnected and the heat exchange path between the heat dissipation module and the battery device is connected.

[0094] When the temperature of the atmospheric source is less than T1 and greater than T2, the energy storage device is switched to the third operating condition so that the heat exchange path between the heat exchange module and the battery device and the heat exchange path between the heat dissipation module and the battery device are both connected.

[0095] The thermal management method provided in this application embodiment has at least the following beneficial effects: the thermal management method provided in this application embodiment can switch the energy storage device to the first operating condition, the second operating condition or the third operating condition according to the temperature change of the atmospheric source, thereby effectively reducing the operating power consumption of the energy storage device and thus effectively improving the energy storage efficiency of the energy storage device.

[0096] Fourthly, embodiments of this application provide a thermal management method for the energy storage device described in any of the above embodiments, the thermal management method comprising the following steps:

[0097] When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device is switched to the first operating condition so that the heat exchange path between the heat exchange module and the battery device is connected and the heat exchange path between the heat dissipation module and the battery device is disconnected.

[0098] When the temperature of the atmospheric source is less than or equal to T2, the energy storage device is switched to the second operating condition so that the heat exchange path between the heat exchange module and the battery device is disconnected and the heat exchange path between the heat dissipation module and the battery device is connected.

[0099] When the temperature of the atmospheric source is less than T1 and greater than T2, the energy storage device is switched to the third operating condition so that the heat exchange path between the heat exchange module and the battery device and the heat exchange path between the heat dissipation module and the battery device are both connected.

[0100] When the temperature of the ground source is higher than that of the atmospheric source and the temperature of the battery device is lower than the threshold, the energy storage device is switched to the fourth operating condition to make the heat exchange path between the heat exchange module and the heat dissipation module open, and the heat exchange path between the heat exchange module and the battery device and the heat dissipation module and the battery device are disconnected.

[0101] The thermal management method provided in this application embodiment has at least the following beneficial effects: the thermal management method provided in this application embodiment can switch the energy storage device to the first operating condition, the second operating condition, the third operating condition or the fourth operating condition according to the temperature change of the atmospheric source, thereby effectively reducing the operating power consumption of the energy storage device and thus effectively improving the energy storage efficiency of the energy storage device.

[0102] Fifthly, embodiments of this application provide an energy storage module, including multiple battery devices and a housing for accommodating the multiple battery devices. The housing is provided with a first heat exchange interface and a second heat exchange interface. The battery devices include individual battery cells and a thermal management component for heat exchange of the individual battery cells. The heat exchange inlet of the thermal management component is connected to the first heat exchange interface, and the heat exchange outlet of the thermal management component is connected to the second heat exchange interface. The first heat exchange interface and the second heat exchange interface are used to connect to a heat exchange module buried in the ground source.

[0103] The energy storage module provided in this application embodiment has at least the following beneficial effects: By connecting to a heat exchange module buried in the ground source, the energy storage module provided in this application embodiment effectively reduces the electrical energy consumed by the energy storage module for temperature regulation, thereby effectively improving the energy storage efficiency of the energy storage module.

[0104] In some embodiments of this application, a heat dissipation module is provided on the housing, and the battery device exchanges heat with the atmospheric source through the heat dissipation module.

[0105] By adopting the above technical solution, the heat dissipation module and the energy storage module can be integrated together, thereby effectively simplifying the structure of the energy storage device and facilitating its installation, transportation, and sale.

[0106] In some embodiments of this application, the heat dissipation module is disposed outside the chamber; or, the heat dissipation module is disposed inside the chamber; or, a portion of the heat dissipation module is disposed outside the chamber, and another portion of the heat dissipation module is disposed inside the chamber.

[0107] By adopting the above technical solution, it is easy to install the heat dissipation module onto the chamber.

[0108] In some embodiments of this application, the heat dissipation module is disposed outside the chamber, and the chamber is provided with a third heat exchange interface and a fourth heat exchange interface. The third heat exchange interface is used to connect to the heat exchange outlet of the heat dissipation module, and the fourth heat exchange interface is used to connect to the heat exchange inlet of the heat dissipation module.

[0109] By adopting the above technical solution, heat exchange between the heat dissipation module and the energy storage module is facilitated.

[0110] Sixthly, embodiments of this application provide an energy storage system, including the energy storage device or the energy storage module described in any of the above embodiments.

[0111] The energy storage system provided in this application embodiment has at least the following beneficial effects: the energy storage system provided in this application embodiment effectively reduces the operating power consumption of the energy storage system by adopting the energy storage device or the energy storage module described in any of the above embodiments, thereby effectively improving the energy storage efficiency of the energy storage system.

[0112] Seventhly, embodiments of this application provide a charging network, including a charging pile and an energy storage device or an energy storage module as described in any of the above embodiments, wherein the energy storage module is used to provide power to the charging pile.

[0113] The charging network provided in this application embodiment has at least the following beneficial effects: the charging network provided in this application embodiment effectively reduces the operating power consumption of the charging network by using the energy storage device or the energy storage module described in any of the above embodiments. Attached Figure Description

[0114] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0115] Figure 1 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of this application;

[0116] Figure 2 This is a schematic diagram of the structure of an energy storage device provided in another embodiment of this application;

[0117] Figure 3 A schematic diagram of the structure of an energy storage device provided in another embodiment of this application;

[0118] Figure 4 This is a schematic diagram of the structure of an energy storage device provided in another embodiment of this application;

[0119] Figure 5 This is a schematic diagram of the structure of an energy storage device provided in another embodiment of this application;

[0120] Figure 6 This is a schematic diagram of the structure of an energy storage device provided in another embodiment of this application;

[0121] Figure 7 This is a schematic diagram of the structure of an energy storage device provided in another embodiment of this application;

[0122] Figure 8 This is a schematic diagram of the structure of the energy storage module provided in the embodiments of this application;

[0123] Figure 9 for Figure 8 The diagram shows the exploded structure of the battery device in the energy storage module.

[0124] Figure 10 This is a schematic diagram of the energy storage system provided in the embodiments of this application;

[0125] Figure 11 This is a schematic diagram of the structure of the charging network provided in an embodiment of this application;

[0126] Figure 12 A schematic diagram of a thermal management method for an energy storage device provided in an embodiment of this application;

[0127] Figure 13 A schematic diagram of a thermal management method for an energy storage device provided in another embodiment of this application;

[0128] Figure 14 A schematic diagram of a thermal management method for an energy storage device provided in another embodiment of this application.

[0129] The following are the labeling elements in the figure:

[0130] 1000. Energy storage system;

[0131] 2000, charging network;

[0132] 100. Energy storage device; 10. Energy storage module; 11. Battery unit; 111. Housing; 1111. First housing; 1112. Second housing; 112. Battery cell; 113. Thermal management component; 12. Compartment; 121. First heat exchange interface; 122. Second heat exchange interface; 20. Heat exchange module; 21. Buried pipe; 30. Heat dissipation module; 40. Heat exchange pipeline assembly; 41. Main heat exchange pipeline; 411. First circulation pipeline; 4111. Third manifold; 4112. Fourth manifold; 4113. First outlet pipe; 4114. First return pipe; 412. Second circulation pipeline; 4121. First manifold; 4122. Second manifold; 4123. First branch pipe; 413. Heat exchanger; 4131. First heat exchange side; 4132. Second heat exchange side; 414, Third circulation pipeline; 4141, Second outlet pipe; 4142, Second return pipe; 4143, Second branch pipe; 42, First bypass pipe; 421, First inlet end; 422, First outlet end; 43, Second bypass pipe; 431, Second inlet end; 432, Second outlet end; 44, Third bypass pipe; 441, Third inlet end; 442, Third outlet end; 45, Fourth bypass pipe; 50, First power module; 60, Second power module; 70, First switching valve; 71, First valve port; 72, Second valve port; 73, Third valve port; 80, Second switching valve; 81, Fourth valve port; 82, Fifth valve port; 83, Sixth valve port; 90, Third switching valve; 91, Seventh valve port; 92, Eighth valve port; 93, Ninth valve port;

[0133] 200. Power conversion equipment;

[0134] 300. Power generation equipment;

[0135] 400. Charging station; 410. Connector. Detailed Implementation

[0136] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0137] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0138] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0139] Furthermore, the terms "first," "second," "third," "fourth," "fifth," "sixth," "seventh," "eighth," "ninth," and "tenth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," "fourth," "fifth," "sixth," "seventh," "eighth," "ninth," and "tenth" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0140] Energy storage devices are used to supply power. As power is supplied, the batteries within these devices generate heat. Prolonged exposure to excessively high temperatures can affect the battery's lifespan and pose safety hazards. Furthermore, in low-temperature environments, such as sub-zero outdoor temperatures, battery performance degrades, leading to unstable operation. Therefore, in practical applications, it is necessary not only to cool the batteries but also to heat them to ensure they operate within suitable temperature ranges.

[0141] In related technologies, energy storage devices typically include energy storage modules and water-cooled units. The water-cooled units regulate the temperature of the battery cells within the energy storage modules, enabling them to operate in a suitable temperature environment. The battery cells not only output electrical energy but also power the water-cooled units. However, due to the high power consumption of the water-cooled units, a significant amount of energy from the battery cells is consumed, leading to a decrease in the energy storage efficiency of the energy storage device.

[0142] The heat exchange module and battery device in the energy storage device provided in this application embodiment can exchange heat through the main heat exchange pipeline, so that the battery device can exchange heat with the ground source. Alternatively, the heat exchange medium can flow through the self-heat exchange pipeline in sequence through the first bypass pipe, the heat dissipation module, the second bypass pipe, and the third bypass pipe, and then return to the main heat exchange pipeline and flow through the battery device, so that the heat dissipation module and the battery device can exchange heat. The heat of the battery device can be transferred to the atmospheric source through the heat dissipation module. In this way, even if the heat dissipation module is a water-cooled unit, the operating time of the water-cooled unit can be greatly reduced. Other heat dissipation modules with lower power consumption can even be used to replace the water-cooled unit, thereby effectively reducing the operating power consumption of the energy storage device and thus effectively improving the energy storage efficiency of the energy storage device.

[0143] The technical solutions described in the embodiments of this application can be applied to energy storage devices that use energy storage modules, as well as energy storage systems and charging networks that use energy storage devices.

[0144] Please refer to the following: Figures 1 to 7 The energy storage device 100 provided in this application embodiment can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device 100 can store electrical energy as needed and output electrical energy at appropriate times. For example, the energy storage device 100 can store electrical energy during off-peak hours and provide electrical energy to relevant users or electrical equipment during peak hours.

[0145] In some embodiments, the energy storage module 10 is an energy storage container or an energy storage cabinet.

[0146] In some embodiments, please refer to Figure 8 The energy storage module 10 may include a housing 12 and one or more battery devices 11, the battery devices 11 being housed in the housing 12.

[0147] In some embodiments, the energy storage device 100 may include modules such as a main control module, a central control module, a power distribution module, and a fire protection module.

[0148] As an example, the main control module can serve as the battery management unit of the battery device 11, used to monitor and manage the battery device 11. The main control module can monitor information such as the current, voltage, power, or temperature of the battery device 11. For example, it can control the charging and discharging current and voltage of the battery device 11. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0149] As an example, the central control module can serve as the battery management unit of the energy storage device 100, used for monitoring and managing the energy storage device 100. The central control module can monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage device 100. For example, it can control the charging and discharging current and voltage of the energy storage device 100. As an example, the central control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0150] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in the energy storage device 100.

[0151] As an example, the power distribution module can be used to distribute power to the modules in the energy storage device 100 that require electricity.

[0152] Please see Figure 10 The energy storage system 1000 provided in this application embodiment may include one or more energy storage devices 100 and a power converter system (PCS). The power converter system 200 is used to connect between the power generation device 300 and the energy storage device 100. The power generation device 300 is used to generate electrical energy, and the electrical energy generated by the power generation device 300 can be stored in the energy storage device 100 through the power converter system 200. As an example, the power generation device 300 may specifically be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, etc. The specific type of the power generation device 300 is not limited in this application.

[0153] Please see Figure 11 The charging network 2000 provided in this application embodiment may include a charging pile 400 and an energy storage device 100. The charging pile 400 is electrically connected to the energy storage device 100, which provides power to the charging pile 400. The charging pile 400 is electrically connected to the battery device 11 in the energy storage device 100 via a cable, and the battery device 11 can provide its stored power to the charging pile 400. The charging pile 400 has one or more connectors 410 for connecting to electrical equipment (such as a vehicle) to replenish power to the electrical equipment.

[0154] The energy storage device 100 can be located inside the charging pile 400 (e.g., an integrated energy storage and charging unit) or outside the charging pile 400.

[0155] To illustrate the technical solutions provided in this application, the following detailed description is provided in conjunction with specific drawings and embodiments.

[0156] Firstly, please refer to the following: Figures 1 to 7 This application provides an energy storage device 100, including an energy storage module 10, a heat exchange module 20, a heat dissipation module 30, and a heat exchange piping assembly 40. The energy storage module 10 includes multiple battery devices 11. At least a portion of the heat exchange module 20 is buried in a ground source for heat exchange with the ground. At least a portion of the heat dissipation module 30 is exposed to an atmospheric source for heat exchange with the atmospheric source. The heat exchange piping assembly 40 is used to circulate a heat exchange medium and includes a main heat exchange pipe 41, a first bypass pipe 42, a second bypass pipe 43, and a third bypass pipe 44. The main heat exchange pipe 41 connects the energy storage module 10 and the heat exchange module 20, allowing the heat exchange module 20 and the battery devices 11 to exchange heat through the main heat exchange pipe 41. The first bypass pipe 42 is used to connect the main heat exchange pipeline 41 and the heat exchange inlet of the heat dissipation module 30. The second bypass pipe 43 is used to connect the main heat exchange pipeline 41 and the heat exchange outlet of the heat dissipation module 30. The third bypass pipe 44 is used to connect the main heat exchange pipeline 41 and the second bypass pipe 43. The heat exchange medium can flow through the heat exchange pipeline 41 in sequence through the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43 and the third bypass pipe 44 and then flow back to the main heat exchange pipeline 41 and through the battery device 11, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0157] First, it should be noted that the aforementioned geographical sources refer to any one or more surface structures, including but not limited to soil surfaces, water surfaces, sandy surfaces, muddy surfaces, and rocky surfaces. Specifically, soil surfaces can include, but are not limited to, forest surfaces and grassland surfaces; water surfaces can include, but are not limited to, lakes, rivers, and oceans; sandy surfaces can include, but are not limited to, deserts and beaches; muddy surfaces can include, but are not limited to, mud deserts; and rocky surfaces can include, but are not limited to, rocky deserts and Gobi deserts. The aforementioned atmospheric sources refer to the atmospheric environment.

[0158] Energy storage module 10 is a module in energy storage device 100 used for storing electrical energy. The battery device 11 is the core component of energy storage module 10. Electrical energy can be input into the battery device 11 for storage, and electrical energy can also be output through the battery device 11 to supply power to electrical devices. The battery device 11 may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells 112, which are connected in series, parallel, or mixed connections via a busbar.

[0159] The battery cell 112, as the smallest unit constituting a battery, may include a casing, an electrode assembly, and an electrolyte, with the electrode assembly and electrolyte housed within the casing. The electrode assembly is the component in the battery cell 112 where electrochemical reactions occur. The main body of the electrode assembly is made of a positive electrode, a negative electrode, and a separator using a winding or laminating process. The electrolyte acts as a conductor of ions between the positive and negative electrodes, enabling the battery cell 112 to generate electrical energy or input electrical energy into the battery cell 112.

[0160] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells 112.

[0161] As an example, the battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells 112 together to form an independent module. As an example, the battery module can also be formed by bundling multiple battery cells 112 together with cable ties.

[0162] In some embodiments, the battery device 11 may be a battery pack, which includes a housing 111 and one or more battery cell assemblies housed in the housing 111.

[0163] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the housing 111 by fixing the battery module in the housing 111.

[0164] As an example, the battery cell assembly can also be housed in the housing 111 by directly fixing multiple battery cells 112 to the housing 111.

[0165] As an example, the housing 111 may include a first housing 1111 and a second housing 1112. The first housing 1111 and the second housing 1112 are fastened together, forming a closed space inside the housing 111 to house the battery cell assembly. Here, "closed" refers to covering or closing, which can be sealed or unsealed. The first housing 1111 may be a top cover or a bottom plate.

[0166] As an example, the housing 111 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 111 forms an enclosed space to accommodate the battery cell assembly.

[0167] The heat exchange module 20 is a module in the energy storage device 100 used for heat exchange between the battery device 11 and the ground source. That is, the battery device 11 and the ground source can exchange heat through the heat exchange module 20, which also manages the temperature of the battery device 11. The heat exchange module 20 can be, but is not limited to, a heat pipe structure or a finned structure. At least a portion of the heat exchange module 20 is buried in the ground source, meaning at least a portion of the heat exchange module 20 is inserted into and enclosed by the ground source. For example, at least a portion of the heat exchange module 20 may be buried in the soil, or at least a portion may be submerged in surface water.

[0168] The heat exchange module 20 is used for thermal management of the battery device 11. The heat exchange module 20 can directly exchange heat with the battery device 11, or it can indirectly exchange heat with the battery device 11 through a heat exchanger (mentioned below). The heat exchange module 20 and the battery device 11 are connected through a heat exchange structure, which can be, but is not limited to, a heat pipe structure, a plate heat exchange structure, etc.

[0169] The heat dissipation module 30 is a module in the energy storage device 100 used for heat exchange between the battery device 11 and the atmospheric source, that is, the battery device 11 and the atmospheric source can exchange heat through the heat dissipation module 30. It is understood that at least part of the heat dissipation module 30 is exposed to the atmospheric source, and there is a heat exchange path between the heat dissipation module 30 and the battery device 11 so that the battery device 11 and the atmospheric source can exchange heat through the heat dissipation module 30.

[0170] The heat exchange piping assembly 40 is used to circulate the heat exchange medium, providing a heat exchange path between the heat exchange module 20 and the battery device 11, and a heat exchange path between the heat dissipation module 30 and the battery device 11. That is, the heat exchange module 20 and the battery device 11 can exchange heat through the heat exchange piping assembly 40 via the heat exchange medium, and the heat dissipation module 30 and the battery device 11 can exchange heat through the heat exchange piping assembly 40 via the heat exchange medium. The main heat exchange piping 41 is used to provide a heat exchange path between the heat exchange module 20 and the battery device 11. The heat exchange medium can be, but is not limited to, water, oil, phase change fluid, etc.

[0171] The heat exchange module 20 and battery device 11 in the energy storage device 100 provided in this application embodiment can exchange heat through the main heat exchange pipeline 41, so that the battery device 11 can exchange heat with the ground source. Alternatively, the heat exchange medium can flow through the self-heat exchange pipeline 41 in sequence through the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43 and the third bypass pipe 44 and then return to the main heat exchange pipeline 41 and flow through the battery device 11, so that the heat dissipation module 30 and the battery device 11 can exchange heat, so that the heat of the battery device 11 can be transferred to the atmospheric source through the heat dissipation module 30. In this way, even if the heat dissipation module 30 is a water-cooled unit, the operating time of the water-cooled unit can be greatly reduced. It is even possible to use other heat dissipation modules 30 with lower power consumption to replace the water-cooled unit, thereby effectively reducing the operating power consumption of the energy storage device 100 and thus effectively improving the energy storage efficiency of the energy storage device 100.

[0172] In some embodiments of this application, the energy storage device 100 has a first operating condition and a second operating condition. In the first operating condition, the heat exchange module 20 and the battery device 11 exchange heat through the main heat exchange pipeline 41. In the second operating condition, the heat exchange medium flows through the main heat exchange pipeline 41 in sequence through the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43 and the third bypass pipe 44 and then flows back to the main heat exchange pipeline 41 and through the battery device 11, so that the heat dissipation module 30 and the battery device 11 exchange heat.

[0173] Please refer to the following: Figures 1 to 7 The structure of the energy storage device 100 of this application and its operation under different conditions will be described below with reference to specific embodiments. It should be noted that, in Figures 1 to 7 In the diagram, a combination of dashed lines and hollow arrows is used to indicate the flow path of the heat exchange medium when the energy storage device 100 operates under the first operating condition; a combination of dashed lines and solid arrows is used to indicate the flow path of the heat exchange medium when the energy storage device 100 operates under the second operating condition; a combination of solid lines and hollow arrows is used to indicate the flow path of the heat exchange medium when the energy storage device 100 operates under the third operating condition described below; and a combination of solid lines and solid arrows is used to indicate the flow path of the heat exchange medium when the energy storage device 100 operates under the fourth operating condition described below.

[0174] The first and second operating conditions refer to two different working modes of the energy storage device 100. The energy storage device 100 can switch between the first and second operating conditions according to different working environmental conditions. In the first operating condition, heat exchange module 20 and battery device 11 can exchange heat through the main heat exchange pipeline 41, so that battery device 11 can exchange heat with the ground source. It can be understood that when battery device 11 needs to be cooled and the temperature of the ground source is lower than the temperature of battery device 11, the heat of battery device 11 can be transferred to the ground source through heat exchange module 20. When battery device 11 needs to be heated and the temperature of the ground source is higher than the temperature of battery device 11, the heat of the ground source can be transferred to battery device 11 through heat exchange module 20. In the second operating condition, the heat exchange medium flows sequentially through the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43, and the third bypass pipe 44 before returning to the main heat exchange pipe 41 and flowing through the battery device 11. This allows the heat dissipation module 30 to exchange heat with the battery device 11, thereby enabling the battery device 11 to exchange heat with the atmospheric source. Understandably, when the battery device 11 requires cooling and the temperature of the atmospheric source is lower than that of the battery device 11, the heat from the battery device 11 can be transferred to the atmospheric source through the heat dissipation module 30.

[0175] The above-mentioned working environment conditions may be atmospheric source, ground source and / or temperature conditions of battery device 11.

[0176] In some embodiments, when the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 switches to the first operating condition, and when the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 switches to the second operating condition, where T2 < T1.

[0177] By adopting the above technical solution, the energy storage device 100 can switch to the corresponding operating condition according to different working environment conditions, thereby further reducing the operating power consumption of the energy storage device 100.

[0178] In some embodiments of this application, the energy storage device 100 also has a third operating condition. In the third operating condition, the heat exchange module 20 and the battery device 11 exchange heat through the main heat exchange pipeline 41, and the heat exchange medium flows through the heat exchange pipeline 41 in sequence through the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43 and the third bypass pipe 44 and then flows back to the main heat exchange pipeline 41 and through the battery device 11, so that the heat dissipation module 30 and the battery device 11 exchange heat.

[0179] The first, second, and third operating conditions refer to three different working modes of the energy storage device 100. The energy storage device 100 can switch between the first, second, and third operating conditions according to different working environmental conditions. In the third operating condition, not only can the heat exchange module 20 and the battery device 11 exchange heat through the main heat exchange pipeline 41, so that the battery device 11 can exchange heat with the ground source, but the heat exchange medium can also flow through the self-heat exchange pipeline 41 in sequence through the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43, and the third bypass pipe 44, and then return to the main heat exchange pipeline 41 and flow through the battery device 11, so that the heat dissipation module 30 can exchange heat with the battery device 11, thereby enabling the battery device 11 to exchange heat with the atmospheric source.

[0180] In some embodiments, when the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 switches to a first operating condition; when the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 switches to a second operating condition; and when the temperature of the atmospheric source is less than T1 but greater than T2, the energy storage device 100 switches to a third operating condition.

[0181] By adopting the above technical solution, the temperature of the battery device 11 can be regulated by the heat exchange module 20 and the heat dissipation module 30. Even if the heat dissipation module 30 is a water-cooled unit, the operating power of the water-cooled unit can be significantly reduced, thereby further reducing the operating power consumption of the energy storage device 100 and further improving the energy storage efficiency of the energy storage device 100.

[0182] In some embodiments of this application, the energy storage device 100 also has a fourth operating condition. In the fourth operating condition, the heat exchange medium flows through the self-heat exchange pipeline 41 in sequence through the first bypass pipe 42, the heat dissipation module 30 and the second bypass pipe 43 and then flows back to the main heat exchange pipeline 41, so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0183] The first, second, third, and fourth operating conditions refer to four different working modes of the energy storage device 100. The energy storage device 100 can switch between these modes according to different operating environmental conditions. In the fourth operating condition, the heat exchange medium can flow sequentially through the first bypass pipe 42, the heat dissipation module 30, and the second bypass pipe 43 before returning to the main heat exchange pipe 41. This allows the heat from the ground source to be transferred to the atmospheric source through the heat exchange module 20 and the heat dissipation module 30, thereby achieving the purpose of cooling the ground source. It can be understood that when the ground source needs cooling and the temperature of the atmospheric source is lower than the temperature of the ground source, the heat from the ground source can be transferred to the atmospheric source through the heat exchange module 20 and the heat dissipation module 30.

[0184] In some embodiments, when the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 switches to a first operating condition; when the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 switches to a second operating condition; when the temperature of the atmospheric source is less than T1 but greater than T2, the energy storage device 100 switches to a third operating condition; and when the temperature of the ground source is greater than the temperature of the atmospheric source and the temperature of the battery device 11 is less than a threshold, the energy storage device 100 switches to a fourth operating condition.

[0185] By adopting the above technical solution, the heat accumulated by the ground source can be transferred to the atmospheric source through the heat exchange module 20 and the heat dissipation module 30, effectively reducing the temperature of the ground source and thus effectively improving the heat dissipation efficiency of the battery device 11.

[0186] Please refer to some embodiments of this application as well. Figures 1 to 4 The main heat exchange pipeline 41 includes a first circulation pipeline 411 and a second circulation pipeline 412. The heat exchange module 20 is disposed on the first circulation pipeline 411, and multiple battery devices 11 are disposed on the second circulation pipeline 412. The heat exchange medium in the first circulation pipeline 411 is used to exchange heat with the heat exchange medium in the second circulation pipeline 412. The first bypass pipe 42, the second bypass pipe 43 and the third bypass pipe 44 are all connected to the second circulation pipeline 412.

[0187] Both the first circulation pipe 411 and the second circulation pipe 412 are used to circulate heat exchange medium. The heat exchange module 20 is disposed on the first circulation pipe 411, and multiple battery devices 11 are disposed on the second circulation pipe 412. In other words, the heat exchange medium in the first circulation pipe 411 can flow through the heat exchange module 20 during the flow along the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 can flow through the battery devices 11 during the flow along the second circulation pipe 412. There is a heat exchange path between the first circulation pipe 411 and the second circulation pipe 412, so that the heat exchange medium in the first circulation pipe 411 and the heat exchange medium in the second circulation pipe 412 can exchange heat through the heat exchange path. That is, the heat exchange medium in the first circulation pipe 411 can exchange heat with the heat exchange module 20 when it flows through the heat exchange module 20, and the heat exchange medium in the second circulation pipe 412 can exchange heat with the battery device 11 when it flows through the battery device 11. After that, the heat exchange medium in the first circulation pipe 411 and the heat exchange medium in the second circulation pipe 412 can exchange heat through the heat exchange path.

[0188] In some embodiments, under a first operating condition, the heat exchange medium in the first circulation pipe 411 circulates along the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 circulates along the second circulation pipe 412, so that the heat exchange module 20 exchanges heat with the battery device 11.

[0189] By adopting the above technical solution, it is easy to realize heat exchange between the heat exchange module 20 and the battery device 11.

[0190] Please refer to some embodiments of this application as well. Figures 1 to 4 The heat exchange piping assembly 40 also includes a heat exchanger 413, which has a first heat exchange side 4131 and a second heat exchange side 4132. A first circulation pipe 411 is connected to the first heat exchange side 4131, and a second circulation pipe 412 is connected to the second heat exchange side 4132. The first heat exchange side 4131 is used to exchange heat with the second heat exchange side 4132.

[0191] Heat exchanger 413 is a component used for heat exchange between the heat exchange medium in the first circulation pipe 411 and the heat exchange medium in the second circulation pipe 412. Heat exchanger 413 can be, but is not limited to, a partition heat exchanger, a regenerative heat exchanger, a mixing heat exchanger, a shell-and-tube heat exchanger, etc. The first heat exchange side 4131 is used to connect to the first circulation pipe 411, and the second heat exchange side 4132 is used to connect to the second circulation pipe 412. Heat exchange can occur between the first heat exchange side 4131 and the second heat exchange side 4132.

[0192] In some embodiments, the first heat exchange side 4131, the second heat exchange side 4132, the heat exchange module 20, and the battery device 11 each have a heat exchange inlet and a heat exchange outlet. The first circulation pipeline 411 includes a third pipe section and a fourth pipe section. The third pipe section is used to connect the heat exchange outlet of the heat exchange module 20 and the heat exchange inlet of the first heat exchange side 4131, and the fourth pipe section is used to connect the heat exchange inlet of the heat exchange module 20 and the heat exchange outlet of the first heat exchange side 4131. The second circulation pipeline 412 includes a fifth pipe section and a sixth pipe section. The fifth pipe section is used to connect the heat exchange inlet of the battery device 11 and the heat exchange outlet of the second heat exchange side 4132, and the sixth pipe section is used to connect the heat exchange outlet of the battery device 11 and the heat exchange inlet of the second heat exchange side 4132. Under the first operating condition, the heat exchange medium in the first circulation pipeline 411 flows from the heat exchange outlet of the heat exchange module 20 through the heat exchange inlet of the first heat exchange side 4131, the heat exchange outlet of the first heat exchange side 4131, and the heat exchange inlet of the heat exchange module 20, and then flows back to the heat exchange outlet of the heat exchange module 20. This cycle continues. The heat exchange medium in the second circulation pipeline 412 flows from the heat exchange outlet of the second heat exchange side 4132 through the heat exchange inlet of the battery device 11, the heat exchange outlet of the battery device 11, and the heat exchange inlet of the second heat exchange side 4132, and then flows back to the heat exchange outlet of the second heat exchange side 4132. This cycle continues, so that the heat exchange module 20 and the battery device 11 can exchange heat.

[0193] By adopting the above technical solution, it is convenient for the heat exchange medium in the first circulation pipeline 411 to exchange heat with the heat exchange medium in the second circulation pipeline 412.

[0194] Please refer to some embodiments of this application as well. Figure 1 , Figure 2 and Figure 4 The number of energy storage modules 10 is multiple. The second circulation pipeline 412 includes a first manifold 4121, a second manifold 4122 and multiple first branch pipes 4123. One end of each of the multiple first branch pipes 4123 is connected to the heat exchange outlet of the second heat exchange side 4132 through the first manifold 4121, and the other end of each of the multiple first branch pipes 4123 is connected to the heat exchange inlet of the second heat exchange side 4132 through the second manifold 4122. The multiple energy storage modules 10 are arranged one-to-one with the multiple first branch pipes 4123.

[0195] The one-to-one correspondence between multiple energy storage modules 10 and multiple first branch pipes 4123 means that the number of energy storage modules 10 is the same as the number of first branch pipes 4123, and each first branch pipe 4123 has one energy storage module 10. The number of energy storage modules 10 and the number of first branch pipes 4123 can be determined according to actual application needs, specifically two, three, four, etc.

[0196] In this embodiment, the heat exchange medium in the second circulation pipeline 412 can enter the first manifold 4121 from the heat exchange outlet of the second heat exchange side 4132, flow into each of the first branch pipes 4123 through the first manifold 4121, and flow through the corresponding energy storage module 10 along each of the first branch pipes 4123. After the heat exchange medium flows out from each of the first branch pipes 4123, it enters the second manifold 4122 and flows back to the heat exchange inlet of the second heat exchange side 4132 through the second manifold 4122.

[0197] Understandably, the portions of the first manifold 4121 and the first branch pipe 4123 located upstream of the energy storage module 10 together constitute the aforementioned fifth pipe segment, and the portions of the second manifold 4122 and the first branch pipe 4123 located downstream of the energy storage module 10 together constitute the aforementioned sixth pipe segment.

[0198] By adopting the above technical solution, heat exchange can be performed on multiple energy storage modules 10 through the heat exchange module 20, effectively simplifying the overall structure of the energy storage device 100.

[0199] Please refer to some embodiments of this application as well. Figure 2 The energy storage device 100 also includes a first power module 50, which is disposed on the first manifold 4121 or the second manifold 4122 to drive the heat exchange medium to circulate in the second circulation pipe 412.

[0200] The first power module 50 is used to provide power for the heat exchange medium to circulate within the second circulation pipeline 412. The first power module 50 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0201] In some embodiments, the first power module 50 may be disposed on the first manifold 4121.

[0202] In some other embodiments, the first power module 50 may be disposed on the second manifold 4122.

[0203] By adopting the above technical solution, the heat exchange medium can be driven by the first power module 50 to flow through multiple energy storage modules 10, thereby further reducing the operating power consumption of the energy storage device 100 and further improving the energy storage efficiency of the energy storage device 100.

[0204] Please refer to other embodiments of this application as well. Figure 1 and Figure 4 The energy storage device 100 also includes multiple first power modules 50, which are configured one-to-one with multiple first branch pipes 4123 to drive the heat exchange medium to circulate in the second circulation pipe 412.

[0205] The first power module 50 is used to provide power for the heat exchange medium to circulate within the second circulation pipeline 412. The first power module 50 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0206] The one-to-one correspondence between multiple first power modules 50 and multiple first branch pipes 4123 means that the number of first power modules 50 is the same as the number of first branch pipes 4123, and each first branch pipe 4123 has one first power module 50. The number of first power modules 50 and the number of first branch pipes 4123 can be determined according to actual application needs, specifically two, three, four, etc. The first power modules 50 can be set on the upstream side or the downstream side of the energy storage module 10.

[0207] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding energy storage module 10 through each first power module 50. Even if the first power module 50 on a certain first branch pipe 4123 fails, it will not affect the flow of the heat exchange medium on other first branch pipes 4123, thereby effectively improving the reliability of the energy storage device 100.

[0208] Please refer to some embodiments of this application as well. Figure 1 , Figure 2 and Figure 4The energy storage device 100 also includes a second power module 60, which is disposed on the first circulation pipeline 411 to drive the heat exchange medium to circulate in the first circulation pipeline 411.

[0209] The second power module 60 is used to provide power for the heat exchange medium to circulate within the first circulation pipeline 411. The second power module 60 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0210] By adopting the above technical solution, it is easy to drive the heat exchange medium to circulate in the first circulation pipeline 411.

[0211] In some embodiments of this application, please refer to Figure 3 The number of energy storage modules 10, the number of heat exchangers 413, and the number of second circulation pipelines 412 are all multiple. Multiple energy storage modules 10 are set one-to-one with multiple second circulation pipelines 412, and multiple second circulation pipelines 412 are set one-to-one with multiple second heat exchange sides 4132. Multiple first heat exchange sides 4131 are all connected to the first circulation pipeline 411.

[0212] Multiple energy storage modules 10 are configured one-to-one with multiple second circulation pipes 412, and multiple second circulation pipes 412 are configured one-to-one with multiple second heat exchange sides 4132. This means that the number of energy storage modules 10, the number of second circulation pipes 412, and the number of heat exchangers 413 are the same. Each second circulation pipe 412 has one energy storage module 10, and each second circulation pipe 412 is connected to the second heat exchange side 4132 of a corresponding heat exchanger 413. The number of energy storage modules 10, the number of second circulation pipes 412, and the number of heat exchangers 413 can be determined according to actual application needs, specifically two, three, four, etc.

[0213] In this embodiment, there is one heat exchange module 20 and one first circulation pipeline 411. The heat exchange module 20 is disposed on the first circulation pipeline 411, and the first circulation pipeline 411 is connected to the first heat exchange side 4131 of each heat exchanger 413.

[0214] By adopting the above technical solution, each energy storage module 10 can exchange heat with the heat exchange module 20 through the corresponding heat exchanger 413. Even if the heat exchanger 413 corresponding to a certain second circulation pipeline 412 fails, it will not affect the energy storage module 10 on other second circulation pipelines 412 from exchanging heat with the heat exchange module 20 through the corresponding heat exchanger 413, thereby effectively improving the reliability of the energy storage device 100.

[0215] In some embodiments of this application, please refer to Figure 3The energy storage device 100 also includes multiple first power modules 50, which are configured one-to-one with multiple second circulation pipelines 412 to drive the heat exchange medium to circulate in the second circulation pipelines 412.

[0216] The first power module 50 is used to provide power for the heat exchange medium to circulate within the second circulation pipeline 412. The first power module 50 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0217] The one-to-one correspondence between multiple first power modules 50 and multiple second circulation pipes 412 means that the number of first power modules 50 is the same as the number of second circulation pipes 412, with one first power module 50 on each second circulation pipe 412. The number of first power modules 50 and the number of second circulation pipes 412 can be determined according to actual application needs, specifically two, three, four, etc. The first power module 50 can be installed on the fifth segment of the second circulation pipe 412 or on the sixth segment of the second circulation pipe 412.

[0218] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding energy storage module 10 through each first power module 50. Even if the first power module 50 on a certain second circulation pipeline 412 fails, it will not affect the flow of the heat exchange medium on other second circulation pipelines 412, thereby effectively improving the reliability of the energy storage device 100.

[0219] In some embodiments of this application, please refer to Figure 3 The first circulation pipeline 411 includes a third manifold 4111, a fourth manifold 4112, multiple first liquid outlet pipes 4113, and multiple first liquid return pipes 4114. One end of each of the multiple first liquid outlet pipes 4113 is connected to the heat exchange outlet of the heat exchange module 20 through the third manifold 4111. The other end of each of the multiple first liquid outlet pipes 4113 is connected to the heat exchange inlet of each of the multiple first heat exchange sides 4131. One end of each of the multiple first liquid return pipes 4114 is connected to the heat exchange inlet of the heat exchange module 20 through the fourth manifold 4112. The other end of each of the multiple first liquid return pipes 4114 is connected to the heat exchange outlet of each of the multiple first heat exchange sides 4131.

[0220] The other end of the multiple first liquid outlet pipes 4113 is connected to the heat exchange inlet of the multiple first heat exchange side 4131 in a one-to-one correspondence. This means that the number of heat exchangers 413 is the same as the number of first liquid outlet pipes 4113, and each first liquid outlet pipe 4113 is connected to the heat exchange inlet of the first heat exchange side 4131 of the corresponding heat exchanger 413.

[0221] The other end of each of the multiple first return pipes 4114 is connected to the heat exchange outlet of each of the multiple first heat exchange sides 4131 in a one-to-one correspondence. This means that the number of heat exchangers 413 is the same as the number of first return pipes 4114, and each first return pipe 4114 is connected to the heat exchange outlet of the first heat exchange side 4131 of a corresponding heat exchanger 413.

[0222] The number of heat exchangers 413, the number of first liquid outlet pipes 4113, and the number of first liquid return pipes 4114 can be determined according to actual application needs, specifically two, three, four, etc.

[0223] In this embodiment, the heat exchange medium in the first circulation pipeline 411 can enter the third manifold 4111 from the heat exchange outlet of the heat exchange module 20, flow into each of the first outlet pipes 4113 through the third manifold 4111, and flow into the heat exchange inlet of the corresponding first heat exchange side 4131 along each of the first outlet pipes 4113. Then, it flows into the corresponding first return pipe 4114 from the heat exchange outlet of each of the first heat exchange side 4131, and then flows out from each of the first return pipes 4114 and enters the fourth manifold 4112 and flows back to the heat exchange inlet of the heat exchange module 20 through the fourth manifold 4112.

[0224] Understandably, the third manifold 4111 and each of the first outlet pipes 4113 together constitute the aforementioned third pipe section, and the fourth manifold 4112 and each of the first return pipes 4114 together constitute the aforementioned fourth pipe section.

[0225] By adopting the above technical solution, it is easy to connect the heat exchange module 20 to multiple heat exchangers 413.

[0226] In some embodiments of this application, the heat exchange module 20 further includes a second power module 60, which is disposed on the third manifold 4111 or the fourth manifold 4112 to drive the heat exchange medium to circulate in the first circulation pipeline 411.

[0227] The second power module 60 is used to provide power for the heat exchange medium to circulate within the first circulation pipeline 411. The second power module 60 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0228] In some embodiments, the second power module 60 may be disposed on the third manifold 4111.

[0229] In other embodiments, the second power module 60 may be disposed on the fourth busbar 4112.

[0230] By adopting the above technical solution, the heat exchange medium can be driven to flow through multiple heat exchangers 413 by the second power module 60, thereby further reducing the operating power consumption of the energy storage device 100 and further improving the energy storage efficiency of the energy storage device 100.

[0231] In other embodiments of this application, please refer to Figure 3 The energy storage device 100 also includes multiple second power modules 60, which are configured one-to-one with multiple first liquid outlet pipes 4113, or the multiple second power modules 60 are configured one-to-one with multiple first liquid return pipes 4114, so as to drive the heat exchange medium to circulate in the first circulation pipeline 411.

[0232] The second power module 60 is used to provide power for the heat exchange medium to circulate within the first circulation pipeline 411. The second power module 60 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0233] In some embodiments, a plurality of second power modules 60 are configured in a one-to-one correspondence with a plurality of first liquid outlet pipes 4113. This one-to-one correspondence means that the number of second power modules 60 is the same as the number of first liquid outlet pipes 4113, and each first liquid outlet pipe 4113 is provided with one second power module 60. The number of second power modules 60 and the number of first liquid outlet pipes 4113 can be determined according to actual application needs, specifically two, three, four, etc.

[0234] In other embodiments, a plurality of second power modules 60 are configured in a one-to-one correspondence with a plurality of first return pipes 4114. This one-to-one correspondence means that the number of second power modules 60 is the same as the number of first return pipes 4114, with one second power module 60 mounted on each first return pipe 4114. The number of second power modules 60 and the number of first return pipes 4114 can be determined according to actual application needs, specifically two, three, four, etc.

[0235] Of course, in other embodiments, some of the second power modules 60 may be respectively disposed on the corresponding first liquid outlet pipe 4113, and other parts of the second power modules 60 may be respectively disposed on the corresponding first liquid return pipe 4114.

[0236] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding heat exchanger 413 by each second power module 60. Even if the second power module 60 on a certain first liquid outlet pipe 4113 or first liquid return pipe 4114 fails, it will not affect the flow of the heat exchange medium on other first liquid outlet pipes 4113 or first liquid return pipes 4114, thereby effectively improving the reliability of the energy storage device 100.

[0237] Please refer to some embodiments of this application as well. Figure 1 , Figure 2 and Figure 4 There are multiple heat dissipation modules 30, and each heat dissipation module 30 is connected to a multiple first branch pipe 4123.

[0238] Understandably, there are multiple first bypass pipes 42, multiple second bypass pipes 43, and multiple third bypass pipes 44. Multiple heat dissipation modules 30 are set one-to-one with multiple first bypass pipes 42, multiple heat dissipation modules 30 are set one-to-one with multiple second bypass pipes 43, and multiple third bypass pipes 44 are set one-to-one with multiple first branch pipes 4123.

[0239] By adopting the above technical solution, the heat dissipation module 30 can exchange heat with the battery device 11 and / or the heat exchange module 20 under the corresponding operating conditions.

[0240] In some embodiments of this application, please refer to Figure 3 There are multiple heat dissipation modules 30, and each heat dissipation module 30 is connected to a multiple second circulation pipe 412.

[0241] Understandably, there are multiple first bypass pipes 42, multiple second bypass pipes 43, and multiple third bypass pipes 44. Multiple heat dissipation modules 30 are set one-to-one with multiple first bypass pipes 42, multiple heat dissipation modules 30 are set one-to-one with multiple second bypass pipes 43, and multiple third bypass pipes 44 are set one-to-one with multiple second circulation pipes 412.

[0242] By adopting the above technical solution, the heat dissipation module 30 can exchange heat with the battery device 11 and / or the heat exchange module 20 under the corresponding operating conditions.

[0243] Please refer to some embodiments of this application as well. Figures 1 to 4 The first bypass pipe 42 has a first inlet end 421 and a first outlet end 422. The first inlet end 421 is connected to the second circulation pipe 412 and is located upstream of the energy storage module 10. The first outlet end 422 is connected to the heat exchange inlet of the heat dissipation module 30. The second bypass pipe 43 has a second inlet end 431 and a second outlet end 432. The second outlet end 432 is connected to the second circulation pipe 412 and is located downstream of the energy storage module 10. The second inlet end 431 is connected to the heat exchange outlet of the heat dissipation module 30. The third bypass pipe 44 has a third inlet end 441 and a third outlet end 442. The third inlet end 441 is connected to the second bypass pipe 43. The third outlet end 442 is connected to the second circulation pipe 412 and is located between the first inlet end 421 and the upstream side of the energy storage module 10.

[0244] It should be noted that the first inlet end 421 is located upstream of the energy storage module 10, the second outlet end 432 is located downstream of the energy storage module 10, and the third outlet end 442 is located between the first inlet end 421 and the upstream side of the energy storage module 10. The upstream side of the energy storage module 10 refers to the side of the energy storage module 10 closest to the heat exchanger 413 in the direction from the heat exchanger 413 to the battery device 11. Since the first inlet end 421 is located upstream of the energy storage module 10 and the third outlet end 442 is located between the first inlet end 421 and the upstream side of the energy storage module 10, during the flow of the heat exchange medium along the second circulation pipeline 412, the heat exchange medium flows from the heat exchanger 413 sequentially through the first inlet end 421 and the third outlet end 442 before reaching the battery device 11. The downstream side of the energy storage module 10 refers to the side of the energy storage module 10 closest to the heat exchanger 413 in the direction from the battery device 11 to the heat exchanger 413 in the second circulation pipeline 412. Since the second outlet end 432 is located downstream of the energy storage module 10, during the flow of the heat exchange medium along the second circulation pipeline 412, the heat exchange medium flows from the battery device 11 through the second outlet end 432 and reaches the heat exchanger 413.

[0245] In the first operating condition, the flow paths between the first inlet end 421 and the second circulation pipe 412, the second outlet end 432 and the second circulation pipe 412, the third inlet end 441 and the second bypass pipe 43, and the third outlet end 442 and the second circulation pipe 412 can be shut off. The heat exchange medium in the first circulation pipe 411 circulates along the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 circulates along the second circulation pipe 412, so that the heat exchange module 20 and the battery device 11 can exchange heat.

[0246] In the second operating condition, the flow paths between the first inlet end 421 and the second circulation pipe 412, the third inlet end 441 and the second bypass pipe 43, and the third outlet end 442 and the second circulation pipe 412 can be opened, while the flow paths between the second outlet end 432 and the second circulation pipe 412 and between the first inlet end 421 and the third outlet end 442 along the second circulation pipe 412 can be closed. This stops the flow of the heat exchange medium in the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 flows back to the heat exchanger 413 from the heat exchanger 413 after passing through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, and the battery device 11, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0247] In the third operating condition, the flow paths between the first inlet end 421 and the second circulation pipe 412, the third inlet end 441 and the second bypass pipe 43, and the third outlet end 442 and the second circulation pipe 412 can be opened, while the flow paths between the second outlet end 432 and the second circulation pipe 412 and between the first inlet end 421 and the third outlet end 442 along the second circulation pipe 412 can be closed. The heat exchange medium in the first circulation pipe 411 is circulated along the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442 and the battery device 11 in sequence before flowing back to the heat exchanger 413, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0248] In the fourth operating condition, the flow path between the first inlet end 421 and the second circulation pipe 412 and the second outlet end 432 and the second circulation pipe 412 can be opened, while the flow path between the third inlet end 441 and the second bypass pipe 43, the flow path between the third outlet end 442 and the second circulation pipe 412, and the flow path between the first inlet end 421 and the third outlet end 442 along the second circulation pipe 412 can be closed. The heat exchange medium in the first circulation pipe 411 is allowed to circulate along the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30 and the second outlet end 432 and then flows back to the heat exchanger 413, so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0249] In some embodiments, the flow of the heat exchange medium in the first circulation pipeline 411 can be controlled or stopped by controlling the start and stop of the second power module 60. For example, in the first, third and fourth operating conditions, the second power module 60 can be started to drive the heat exchange medium in the first circulation pipeline 411 to circulate along the first circulation pipeline 411. In the second operating condition, the second power module 60 can be stopped to stop the flow of the heat exchange medium in the first circulation pipeline 411.

[0250] In this embodiment, the first power module 50 can be disposed between the heat exchanger 413 and the upstream side of the first inlet end 421, or it can be disposed between the heat exchanger 413 and the downstream side of the second outlet end 432. The downstream side of the first inlet end 421 refers to the side of the first inlet end 421 closest to the heat exchanger 413 in the direction of the heat exchange medium flowing from the heat exchanger 413 to the battery device 11 in the second circulation pipeline 412. The downstream side of the second outlet end 432 refers to the side of the second outlet end 432 closest to the heat exchanger 413 in the direction of the heat exchange medium flowing from the battery device 11 to the heat exchanger 413 in the second circulation pipeline 412.

[0251] By adopting the above technical solution, the flow path of the heat exchange medium can be changed according to different operating conditions, which facilitates the switching of operating conditions of the energy storage device 100.

[0252] Please refer to some embodiments of this application as well. Figures 1 to 3 The energy storage device 100 also includes a first switching valve 70 and a second switching valve 80. The second outlet end 432 is connected to the second circulation pipeline 412 through the first switching valve 70, and the third outlet end 442 is connected to the second circulation pipeline 412 through the second switching valve 80.

[0253] In this embodiment, the first switching valve 70 is a valve body used to open or close the flow path between the second outlet end 432 and the second circulation pipeline 412. The second switching valve 80 is a valve body used to open or close the flow path between the third outlet end 442 and the second circulation pipeline 412. The first switching valve 70 and the second switching valve 80 can be electric valves or manual valves.

[0254] In the first operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second circulation pipeline 412, and the second switching valve 80 shuts off the flow path between the third outlet end 442 and the second circulation pipeline 412, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43 and the third bypass pipe 44. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411, and the heat exchange medium in the second circulation pipeline 412 circulates along the second circulation pipeline 412, so that the heat exchange module 20 and the battery device 11 exchange heat.

[0255] In the second operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second circulation pipeline 412, and the second switching valve 80 opens the flow path between the third outlet end 442 and the second circulation pipeline 412 and shuts off the flow path between the first inlet end 421 and the third outlet end 442 along the second circulation pipeline 412, so that the heat exchange medium in the second circulation pipeline 412 flows back to the heat exchanger 413 after passing through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442 and the battery device 11 in sequence. At this time, the heat exchange medium in the first circulation pipeline 411 stops flowing, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0256] In the third operating condition, the first switching valve 70 shuts off the flow path between the second outlet 432 and the second circulation pipeline 412, and the second switching valve 80 opens the flow path between the third outlet 442 and the second circulation pipeline 412 and shuts off the flow path between the first inlet 421 and the third outlet 442 along the second circulation pipeline 412, so that the heat exchange medium in the second circulation pipeline 412 flows back to the heat exchanger 413 after passing through the first inlet 421, the heat dissipation module 30, the third inlet 441, the third outlet 442 and the battery device 11 in sequence. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0257] In the fourth operating condition, the first switching valve 70 opens the flow path between the second outlet end 432 and the second circulation pipeline 412, and the second switching valve 80 closes the flow path between the third outlet end 442 and the second circulation pipeline 412 and the flow path between the first inlet end 421 and the third outlet end 442 along the second circulation pipeline 412, so that the heat exchange medium in the second circulation pipeline 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30 and the second outlet end 432 and then flows back to the heat exchanger 413. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that the heat exchange module 20 and the heat dissipation module 30 exchange heat.

[0258] By adopting the above technical solution, the first switching valve 70 and the second switching valve 80 can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0259] Please refer to some embodiments of this application as well. Figures 1 to 3 The first switching valve 70 has a first valve port 71, a second valve port 72 and a third valve port 73. The first valve port 71 and the second valve port 72 are both connected to the second circulation pipeline 412, and the third valve port 73 is connected to the second outlet end 432. The second switching valve 80 has a fourth valve port 81, a fifth valve port 82 and a sixth valve port 83. The fourth valve port 81 and the fifth valve port 82 are both connected to the second circulation pipeline 412, and the sixth valve port 83 is connected to the third outlet end 442.

[0260] It should be noted that, in this embodiment, the first valve port 71 and the second valve port 72 are arranged sequentially along the flow direction of the heat exchange medium in the second circulation pipeline 412, and the fourth valve port 81 and the fifth valve port 82 are arranged sequentially along the flow direction of the heat exchange medium in the second circulation pipeline 412.

[0261] In the first operating condition, the first valve port 71, the second valve port 72, the fourth valve port 81 and the fifth valve port 82 are opened, and the third valve port 73 and the sixth valve port 83 are closed, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43 and the third bypass pipe 44. At this time, the heat exchange medium in the first circulation pipe 411 circulates along the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 circulates along the second circulation pipe 412, so that the heat exchange module 20 and the battery device 11 exchange heat.

[0262] In the second operating condition, the first valve port 71, the second valve port 72, the fifth valve port 82 and the sixth valve port 83 are opened, and the third valve port 73 and the fourth valve port 81 are closed, so that the heat exchange medium in the second circulation pipeline 412 flows back to the heat exchanger 413 after passing through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442 and the battery device 11 in sequence. At this time, the heat exchange medium in the first circulation pipeline 411 stops flowing, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0263] In the third operating condition, the first valve port 71, the second valve port 72, the fifth valve port 82 and the sixth valve port 83 are opened, and the third valve port 73 and the fourth valve port 81 are closed, so that the heat exchange medium in the second circulation pipeline 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442 and the battery device 11 in sequence and then flows back to the heat exchanger 413. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0264] In the fourth operating condition, the second valve port 72 and the third valve port 73 are opened, and the first valve port 71 and the fourth valve port 81, or the first valve port 71 and the sixth valve port 83, or the fourth valve port 81 and the fifth valve port 82, or the fourth valve port 81 and the sixth valve port 83, or the fifth valve port 82 and the sixth valve port 83 are closed, so that the heat exchange medium in the second circulation pipeline 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30 and the second outlet end 432 and then flows back to the heat exchanger 413. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that the heat exchange module 20 and the heat dissipation module 30 exchange heat.

[0265] By adopting the above technical solution, the valve ports of the first switching valve 70 and the second switching valve 80 can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0266] In some embodiments of this application, please refer to Figure 4 The energy storage device 100 also includes a first switching valve 70 and a second switching valve 80. The first inlet end 421 is connected to the second circulation pipeline 412 through the first switching valve 70, and the third inlet end 441 is connected to the second bypass pipeline 43 through the second switching valve 80.

[0267] In this embodiment, the first switching valve 70 is a valve body used to open or close the flow path between the first inlet end 421 and the second circulation pipeline 412. The second switching valve 80 is a valve body used to open or close the flow path between the third inlet end 441 and the second bypass pipe 43. The first switching valve 70 and the second switching valve 80 can be electric valves or manual valves.

[0268] In the first operating condition, the first switching valve 70 shuts off the flow path between the first inlet end 421 and the second circulation pipeline 412, and the second switching valve 80 shuts off the flow path between the third inlet end 441 and the second bypass pipe 43, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43 and the third bypass pipe 44. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411, and the heat exchange medium in the second circulation pipeline 412 circulates along the second circulation pipeline 412, so that the heat exchange module 20 and the battery device 11 exchange heat.

[0269] In the second operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the second circulation pipeline 412 and closes the flow path between the first inlet end 421 and the third outlet end 442 along the second circulation pipeline 412. The second switching valve 80 opens the flow path between the third inlet end 441 and the second bypass pipe 43 and closes the flow path between the third inlet end 441 and the second outlet end 432 along the second bypass pipe 43. This allows the heat exchange medium in the second circulation pipeline 412 to flow back to the heat exchanger 413 after passing through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, and the battery device 11 in sequence. At this time, the heat exchange medium in the first circulation pipeline 411 stops flowing, allowing the heat dissipation module 30 and the battery device 11 to exchange heat.

[0270] In the third operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the second circulation pipeline 412 and closes the flow path between the first inlet end 421 and the third outlet end 442 along the second circulation pipeline 412. The second switching valve 80 opens the flow path between the third inlet end 441 and the second bypass pipe 43 and closes the flow path between the third inlet end 441 and the second outlet end 432 along the second bypass pipe 43. This allows the heat exchange medium in the second circulation pipeline 412 to flow back to the heat exchanger 413 after passing through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, and the battery device 11 in sequence. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0271] In the fourth operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the second circulation pipeline 412 and closes the flow path between the first inlet end 421 and the third outlet end 442 along the second circulation pipeline 412. The second switching valve 80 closes the flow path between the third inlet end 441 and the second bypass pipe 43 and opens the flow path between the third inlet end 441 and the second outlet end 432 along the second bypass pipe 43, so that the heat exchange medium in the second circulation pipeline 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30 and the second outlet end 432 and then flows back to the heat exchanger 413. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that the heat exchange module 20 and the heat dissipation module 30 exchange heat.

[0272] By adopting the above technical solution, the first switching valve 70 and the second switching valve 80 can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0273] In some embodiments of this application, please refer to Figure 4 The first switching valve 70 has a first valve port 71, a second valve port 72 and a third valve port 73. The first valve port 71 and the second valve port 72 are both connected to the second circulation pipeline 412, and the third valve port 73 is connected to the first inlet end 421. The second switching valve 80 has a fourth valve port 81, a fifth valve port 82 and a sixth valve port 83. The fourth valve port 81 and the fifth valve port 82 are both connected to the second bypass pipe 43, and the sixth valve port 83 is connected to the third inlet end 441.

[0274] It should be noted that, in this embodiment, the first valve port 71 and the second valve port 72 are arranged sequentially along the flow direction of the heat exchange medium in the second circulation pipeline 412, and the fourth valve port 81 and the fifth valve port 82 are arranged sequentially along the flow direction of the heat exchange medium in the second bypass pipe 43.

[0275] In the first operating condition, the first valve port 71 and the second valve port 72 are opened, and the third valve port 73 and the sixth valve port 83 are closed, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43 and the third bypass pipe 44. At this time, the heat exchange medium in the first circulation pipe 411 circulates along the first circulation pipe 411, and the heat exchange medium in the second circulation pipe 412 circulates along the second circulation pipe 412, so that the heat exchange module 20 exchanges heat with the battery device 11.

[0276] In the second operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81 and the sixth valve port 83 are opened, and the second valve port 72 and the fifth valve port 82 are closed, so that the heat exchange medium in the second circulation pipeline 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442 and the battery device 11 in sequence and then flows back to the heat exchanger 413. At this time, the heat exchange medium in the first circulation pipeline 411 stops flowing, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0277] In the third operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81 and the sixth valve port 83 are opened, and the second valve port 72 and the fifth valve port 82 are closed, so that the heat exchange medium in the second circulation pipeline 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442 and the battery device 11 in sequence and then flows back to the heat exchanger 413. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0278] In the fourth operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81 and the fifth valve port 82 are opened, and the second valve port 72 and the sixth valve port 83 are closed, so that the heat exchange medium in the second circulation pipeline 412 flows from the heat exchanger 413 through the first inlet end 421, the heat dissipation module 30 and the second outlet end 432 and then flows back to the heat exchanger 413. At this time, the heat exchange medium in the first circulation pipeline 411 circulates along the first circulation pipeline 411 so that the heat exchange module 20 and the heat dissipation module 30 exchange heat.

[0279] By adopting the above technical solution, the valve ports of the first switching valve 70 and the second switching valve 80 can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0280] Please refer to some embodiments of this application as well. Figures 5 to 7The main heat exchange pipeline 41 includes a third circulation pipeline 414, which is used to connect the heat exchange module 20 and the battery device 11. The first bypass pipe 42, the second bypass pipe 43 and the third bypass pipe 44 are all connected to the third circulation pipeline 414.

[0281] The third circulation pipe 414 is used to circulate the heat exchange medium, which can be, but is not limited to, water, oil, phase change fluid, etc. The heat exchange module 20 and multiple battery devices 11 are all disposed on the third circulation pipe 414. In other words, the heat exchange medium in the third circulation pipe 414 can flow through the heat exchange module 20 and the battery devices 11 during the flow along the third circulation pipe 414.

[0282] In some embodiments, under the first operating condition, the heat exchange medium in the third circulation pipeline 414 circulates along the third circulation pipeline 414 so that the heat exchange module 20 and the battery device 11 can exchange heat through the heat exchange medium.

[0283] In some embodiments, both the heat exchange module 20 and the battery device 11 have a heat exchange inlet and a heat exchange outlet. The third circulation pipeline 414 includes a first pipe section and a second pipe section. The first pipe section connects the heat exchange outlet of the heat exchange module 20 and the heat exchange inlet of the battery device 11, and the second pipe section connects the heat exchange inlet of the heat exchange module 20 and the heat exchange outlet of the battery device 11. Under a first operating condition, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange outlet of the heat exchange module 20 through the heat exchange inlet of the battery device 11, the heat exchange outlet of the battery device 11, and the heat exchange inlet of the heat exchange module 20, and then flows back to the heat exchange outlet of the heat exchange module 20. This cycle is repeated to allow the heat exchange module 20 and the battery device 11 to exchange heat.

[0284] By adopting the above technical solution, it is easy to realize heat exchange between the heat exchange module 20 and the battery device 11.

[0285] Please refer to some embodiments of this application as well. Figures 5 to 7 There are multiple energy storage modules 10. The third circulation pipeline 414 includes a second liquid outlet pipe 4141, a second liquid return pipe 4142, and multiple second branch pipes 4143. One end of each of the multiple second branch pipes 4143 is connected to the heat exchange outlet of the heat exchange module 20 through the second liquid outlet pipe 4141, and the other end of each of the multiple second branch pipes 4143 is connected to the heat exchange inlet of the heat exchange module 20 through the second liquid return pipe 4142. The multiple energy storage modules 10 are arranged one-to-one with the multiple second branch pipes 4143.

[0286] The one-to-one correspondence between multiple energy storage modules 10 and multiple second branch pipes 4143 means that the number of energy storage modules 10 is the same as the number of second branch pipes 4143, and each second branch pipe 4143 has one energy storage module 10. The number of energy storage modules 10 and the number of second branch pipes 4143 can be determined according to actual application needs, specifically two, three, four, etc.

[0287] In this embodiment, the heat exchange medium in the third circulation pipeline 414 can enter the second liquid outlet pipe 4141 from the heat exchange outlet of the heat exchange module 20, flow into each of the second branch pipes 4143 through the second liquid outlet pipe 4141, and flow through the corresponding energy storage module 10 along each of the second branch pipes 4143. After the heat exchange medium flows out from each of the second branch pipes 4143, it enters the second return pipe 4142 and flows back to the heat exchange inlet of the heat exchange module 20 through the second return pipe 4142.

[0288] Understandably, the portions of the second outlet pipe 4141 and the second branch pipe 4143 located upstream of the energy storage module 10 together constitute the first pipe section, and the portions of the second return pipe 4142 and the second branch pipe 4143 located downstream of the energy storage module 10 together constitute the second pipe section.

[0289] By adopting the above technical solution, heat exchange can be performed on multiple energy storage modules 10 through the heat exchange module 20, effectively simplifying the overall structure of the energy storage device 100.

[0290] In some embodiments of this application, please refer to Figure 6 The energy storage device 100 also includes a first power module 50, which is installed on the second liquid outlet pipe 4141 or the second liquid return pipe 4142 to drive the heat exchange medium to circulate in the third circulation pipe 414.

[0291] The first power module 50 is used to provide power for the circulation of the heat exchange medium within the third circulation pipeline 414. The first power module 50 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0292] In some embodiments, the first power module 50 may be disposed on the second liquid outlet pipe 4141.

[0293] In some other embodiments, the first power module 50 may be disposed on the second return pipe 4142.

[0294] By adopting the above technical solution, the heat exchange medium can be driven by the first power module 50 to flow through multiple energy storage modules 10, thereby further reducing the operating power consumption of the energy storage device 100 and further improving the energy storage efficiency of the energy storage device 100.

[0295] Please refer to some embodiments of this application as well. Figure 5 and Figure 7 The energy storage device 100 also includes multiple first power modules 50, which are configured one-to-one with multiple second branch pipes 4143 to drive the heat exchange medium to circulate in the third circulation pipe 414.

[0296] The first power module 50 is used to provide power for the circulation of the heat exchange medium within the third circulation pipeline 414. The first power module 50 can be, but is not limited to, a piston pump, screw pump, centrifugal pump, axial flow pump, etc.

[0297] The one-to-one correspondence between multiple first power modules 50 and multiple second branch pipes 4143 means that the number of first power modules 50 is the same as the number of second branch pipes 4143, and each second branch pipe 4143 has one first power module 50. The number of first power modules 50 and second branch pipes 4143 can be determined according to actual application needs, specifically two, three, four, etc. The first power modules 50 can be set on the upstream side or the downstream side of the energy storage module 10.

[0298] By adopting the above technical solution, the heat exchange medium can be driven to flow through the corresponding energy storage module 10 through each first power module 50. Even if the first power module 50 on a certain second branch pipe 4143 fails, it will not affect the flow of the heat exchange medium on other second branch pipes 4143, thereby effectively improving the reliability of the energy storage device 100.

[0299] Please refer to some embodiments of this application as well. Figures 5 to 7 There are multiple heat dissipation modules 30, and each heat dissipation module 30 is connected to a multiple second branch pipe 4143 in a one-to-one correspondence.

[0300] Understandably, there are multiple first bypass pipes 42, multiple second bypass pipes 43, and multiple third bypass pipes 44. Multiple heat dissipation modules 30 are set one-to-one with multiple first bypass pipes 42, multiple heat dissipation modules 30 are set one-to-one with multiple second bypass pipes 43, and multiple third bypass pipes 44 are set one-to-one with multiple second branch pipes 4143.

[0301] By adopting the above technical solution, the heat dissipation module 30 can exchange heat with the battery device 11 and / or the heat exchange module 20 under the corresponding operating conditions.

[0302] Please refer to some embodiments of this application as well. Figures 5 to 7The heat exchange pipeline assembly 40 also includes a fourth bypass pipe 45. The third circulation pipeline 414 includes a first pipe section and a second pipe section. The first pipe section is connected between the heat exchange outlet of the heat exchange module 20 and the energy storage module 10. The second pipe section is connected between the heat exchange inlet of the heat exchange module 20 and the energy storage module 10. The fourth bypass pipe 45 is connected between the first pipe section and the second pipe section.

[0303] Since the fourth bypass pipe 45 is connected between the first pipe section and the second pipe section, under the second operating condition, the heat exchange medium flows back to the fourth bypass pipe 45 along the second pipe section after flowing through the heat dissipation module 30 and the battery device 11, and so on, so that the heat exchange medium does not flow through the heat exchange module 20.

[0304] In the first operating condition, the flow paths of the first bypass pipe 42 and the third circulation pipe 414, the second bypass pipe 43 and the third circulation pipe 414, the third bypass pipe 44 and the second bypass pipe 43, and the fourth bypass pipe 45 and the third circulation pipe 414 can be shut off. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 and the battery device 11 can exchange heat.

[0305] In the second operating condition, the flow paths of the first bypass pipe 42 and the third circulation pipe 414, the third bypass pipe 44 and the second bypass pipe 43, and the fourth bypass pipe 45 and the third circulation pipe 414 can be opened, while the flow path of the second bypass pipe 43 and the third circulation pipe 414 can be closed. At this time, the heat exchange medium flows from the first pipe section through the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43 and the third bypass pipe 44 in sequence, and then flows back to the first pipe section and through the battery device 11. Then, it flows from the battery device 11 through the second pipe section and the fourth bypass pipe 45 in sequence and then flows back to the first pipe section, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0306] In the third operating condition, the flow paths between the first bypass pipe 42 and the third circulation pipe 414, and between the third bypass pipe 44 and the second bypass pipe 43 can be opened, while the flow paths between the second bypass pipe 43 and the third circulation pipe 414, and between the fourth bypass pipe 45 and the third circulation pipe 414 can be closed. At this time, the heat exchange medium flows from the heat exchange module 20 through the first pipe section, the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43, and the third bypass pipe 44 in sequence, then flows back to the first pipe section and through the battery device 11, and then flows from the battery device 11 through the second pipe section and back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0307] In the fourth operating condition, the flow paths of the first bypass pipe 42 and the third circulation pipe 414 and the second bypass pipe 43 and the third circulation pipe 414 can be opened, while the flow paths of the third bypass pipe 44 and the second bypass pipe 43 and the fourth bypass pipe 45 and the third circulation pipe 414 can be closed. At this time, the heat exchange medium flows from the heat exchange module 20 through the first pipe section, the first bypass pipe 42, the heat dissipation module 30, the second bypass pipe 43 and the second pipe section in sequence and then flows back to the heat exchange module 20 so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0308] In this embodiment, the first power module 50 can be disposed on the first pipe segment and located between the first bypass pipe 42 and the fourth bypass pipe 45, and can be disposed on the second pipe segment and located between the second bypass pipe 43 and the fourth bypass pipe 45.

[0309] By adopting the above technical solution, it is easy to realize heat exchange between the heat dissipation module 30 and the battery device 11 under the second operating condition.

[0310] Please refer to some embodiments of this application as well. Figures 5 to 7 The first bypass pipe 42 has a first inlet end 421 and a first outlet end 422. The first inlet end 421 is connected to the first pipe section and is located between the fourth bypass pipe 45 and the energy storage module 10. The first outlet end 422 is connected to the heat exchange inlet of the heat dissipation module 30. The second bypass pipe 43 has a second inlet end 431 and a second outlet end 432. The second outlet end 432 is connected to the second pipe section and is located between the fourth bypass pipe 45 and the energy storage module 10. The second inlet end 431 is connected to the heat exchange outlet of the heat dissipation module 30. The third bypass pipe 44 has a third inlet end 441 and a third outlet end 442. The third inlet end 441 is connected to the second bypass pipe 43. The third outlet end 442 is connected to the first pipe section and is located between the first inlet end 421 and the energy storage module 10.

[0311] In the first operating condition, the flow path between the first inlet end 421 and the first pipe section, the flow path between the second outlet end 432 and the second pipe section, the flow path between the third inlet end 441 and the second bypass pipe 43, the flow path between the third outlet end 442 and the first pipe section, and the flow path between the fourth bypass pipe 45 and the third circulation pipe 414 can be shut off. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 and the battery device 11 can exchange heat.

[0312] In the second operating condition, the flow paths between the first inlet end 421 and the first pipe section, the third inlet end 441 and the second bypass pipe 43, the third outlet end 442 and the first pipe section, and the fourth bypass pipe 45 and the third circulation pipe 414 can be opened. The flow paths between the second outlet end 432 and the second pipe section, the flow paths between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the flow paths between the heat exchange module 20 and the fourth bypass pipe 45 along the third circulation pipe 414 can be closed. At this time, the heat exchange medium in the third circulation pipe 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section in sequence and then flows back to the fourth bypass pipe 45 so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0313] In the third operating condition, the flow paths between the first inlet end 421 and the first pipe section, the third inlet end 441 and the second bypass pipe 43, and the third outlet end 442 and the first pipe section can be opened, while the flow paths between the second outlet end 432 and the second pipe section, the flow paths between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the flow paths between the fourth bypass pipe 45 and the third circulation pipe 414 can be closed. At this time, the heat exchange medium in the third circulation pipe 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0314] In the fourth operating condition, the flow path between the first inlet end 421 and the first pipe section and the flow path between the second outlet end 432 and the second pipe section can be opened, while the flow path between the third inlet end 441 and the second bypass pipe 43, the flow path between the third outlet end 442 and the first pipe section, the flow path between the fourth bypass pipe 45 and the third circulation pipe 414, and the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section can be closed. This allows the heat exchange medium in the third circulation pipe 414 to flow from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432, and the second pipe section in sequence, and then back to the heat exchange module 20, so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0315] By adopting the above technical solution, the flow path of the heat exchange medium can be changed according to different operating conditions, which facilitates the switching of operating conditions of the energy storage device 100.

[0316] Please refer to some embodiments of this application as well. Figure 5 and Figure 6The energy storage device 100 also includes a first switching valve 70, a second switching valve 80 and a third switching valve 90. The second outlet end 432 is connected to the second pipe section through the first switching valve 70, the third outlet end 442 is connected to the first pipe section through the second switching valve 80, and the fourth bypass pipe 45 is connected to the first pipe section or the second pipe section through the third switching valve 90.

[0317] In this embodiment, the first switching valve 70 is a valve body used to open or close the flow path between the second outlet end 432 and the second pipe section. The second switching valve 80 is a valve body used to open or close the flow path between the third outlet end 442 and the first pipe section. The third switching valve 90 is a valve body used to open or close the flow path between the fourth bypass pipe 45 and the first pipe section or the fourth bypass pipe 45 and the second pipe section. The first switching valve 70, the second switching valve 80, and the third switching valve 90 can be electric valves or manual valves.

[0318] In some embodiments, the fourth bypass pipe 45 is connected to the first pipe section via a third switching valve 90.

[0319] In the first operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second pipe section, the second switching valve 80 shuts off the flow path between the third outlet end 442 and the first pipe section, and the third switching valve 90 shuts off the flow path between the fourth bypass pipe 45 and the first pipe section, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 and the battery device 11 exchange heat.

[0320] In the second operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second pipe section, the second switching valve 80 opens the flow path between the third outlet end 442 and the first pipe section and shuts off the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the third switching valve 90 opens the flow path between the fourth bypass pipe 45 and the first pipe section and shuts off the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the first pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11 and the second pipe section in sequence and then flows back to the fourth bypass pipe 45 so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0321] In the third operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second pipe section, the second switching valve 80 opens the flow path between the third outlet end 442 and the first pipe section and shuts off the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the third switching valve 90 shuts off the flow path between the fourth bypass pipe 45 and the first pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the first pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11 and the second pipe section and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0322] In the fourth operating condition, the first switching valve 70 opens the flow path between the second outlet end 432 and the first pipe section, the second switching valve 80 closes the flow path between the third outlet end 442 and the first pipe section and the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the third switching valve 90 closes the flow path between the fourth bypass pipe 45 and the first pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the first pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432 and the second pipe section in sequence and then flows back to the heat exchange module 20 so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0323] In other embodiments, the fourth bypass pipe 45 is connected to the second pipe section via a third switching valve 90.

[0324] In the first operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second pipe section, the second switching valve 80 shuts off the flow path between the third outlet end 442 and the first pipe section, and the third switching valve 90 shuts off the flow path between the fourth bypass pipe 45 and the second pipe section, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 and the battery device 11 exchange heat.

[0325] In the second operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second pipe section, the second switching valve 80 opens the flow path between the third outlet end 442 and the first pipe section and shuts off the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the third switching valve 90 opens the flow path between the fourth bypass pipe 45 and the second pipe section and shuts off the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the second pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11 and the second pipe section in sequence and then flows back to the fourth bypass pipe 45 so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0326] In the third operating condition, the first switching valve 70 shuts off the flow path between the second outlet end 432 and the second pipe section, the second switching valve 80 opens the flow path between the third outlet end 442 and the first pipe section and shuts off the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the third switching valve 90 shuts off the flow path between the fourth bypass pipe 45 and the second pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the second pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11 and the second pipe section and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0327] In the fourth operating condition, the first switching valve 70 opens the flow path between the second outlet end 432 and the first pipe section, the second switching valve 80 closes the flow path between the third outlet end 442 and the first pipe section and the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section, and the third switching valve 90 closes the flow path between the fourth bypass pipe 45 and the second pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the second pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432 and the second pipe section in sequence and then flows back to the heat exchange module 20 so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0328] By adopting the above technical solution, the first switching valve 70, the second switching valve 80 and the third switching valve 90 can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0329] Please refer to some embodiments of this application as well. Figure 5 and Figure 6 The first switching valve 70 has a first valve port 71, a second valve port 72, and a third valve port 73. The first valve port 71 and the second valve port 72 are both connected to the second pipe section, and the third valve port 73 is connected to the second outlet end 432. The second switching valve 80 has a fourth valve port 81, a fifth valve port 82, and a sixth valve port 83. The fourth valve port 81 and the fifth valve port 82 are both connected to the first pipe section, and the sixth valve port 83 is connected to the third outlet end 442. The third switching valve 90 has a seventh valve port 91, an eighth valve port 92, and a ninth valve port 93. The seventh valve port 91 and the eighth valve port 92 are both connected to the first pipe section or the second pipe section, and the third valve port 73 is connected to the fourth bypass pipe 45.

[0330] It should be noted that, in this embodiment, the first valve port 71 and the second valve port 72 are arranged sequentially along the flow direction of the heat exchange medium in the third circulation pipeline 414, the fourth valve port 81 and the fifth valve port 82 are arranged sequentially along the flow direction of the heat exchange medium in the third circulation pipeline 414, and the seventh valve port 91 and the eighth valve port 92 are arranged sequentially along the flow direction of the heat exchange medium in the third circulation pipeline 414.

[0331] In some embodiments, both the seventh valve port 91 and the eighth valve port 92 are connected to the first pipe section.

[0332] In the first operating condition, the first valve port 71, the second valve port 72, the fourth valve port 81, the fifth valve port 82, the seventh valve port 91 and the eighth valve port 92 are opened, and the third valve port 73, the sixth valve port 83 and the ninth valve port 93 are closed, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 exchanges heat with the battery device 11.

[0333] In the second operating condition, the first valve port 71, the second valve port 72, the fifth valve port 82, the sixth valve port 83, the eighth valve port 92, and the ninth valve port 93 are opened, and the third valve port 73, the fourth valve port 81, and the seventh valve port 91 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the fourth bypass pipe 45, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0334] In the third operating condition, the first valve port 71, the second valve port 72, the fifth valve port 82, the sixth valve port 83, the seventh valve port 91, and the eighth valve port 92 are opened, and the third valve port 73, the fourth valve port 81, and the ninth valve port 93 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0335] In the fourth operating condition, the second valve port 72, the third valve port 73, the seventh valve port 91, and the eighth valve port 92 are opened, and the first valve port 71 and the fourth valve port 81, or the first valve port 71 and the sixth valve port 83, or the fourth valve port 81 and the fifth valve port 82, or the fourth valve port 81 and the sixth valve port 83, or the fifth valve port 82 and the sixth valve port 83 are closed, and the ninth valve port 93 is also closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432, and the second pipe section in sequence, and then flows back to the heat exchange module 20, so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0336] In other embodiments, both the seventh valve port 91 and the eighth valve port 92 are connected to the second pipe section.

[0337] In the first operating condition, the first valve port 71, the second valve port 72, the fourth valve port 81, the fifth valve port 82, the seventh valve port 91 and the eighth valve port 92 are opened, and the third valve port 73, the sixth valve port 83 and the ninth valve port 93 are closed, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 exchanges heat with the battery device 11.

[0338] In the second operating condition, the first valve port 71, the second valve port 72, the fifth valve port 82, the sixth valve port 83, the seventh valve port 91, and the ninth valve port 93 are opened, and the third valve port 73, the fourth valve port 81, and the eighth valve port 92 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the fourth bypass pipe 45, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0339] In the third operating condition, the first valve port 71, the second valve port 72, the fifth valve port 82, the sixth valve port 83, the seventh valve port 91, and the eighth valve port 92 are opened, and the third valve port 73, the fourth valve port 81, and the ninth valve port 93 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0340] In the fourth operating condition, the second valve port 72, the third valve port 73, the seventh valve port 91, and the eighth valve port 92 are opened, and the first valve port 71 and the fourth valve port 81, or the first valve port 71 and the sixth valve port 83, or the fourth valve port 81 and the fifth valve port 82, or the fourth valve port 81 and the sixth valve port 83, or the fifth valve port 82 and the sixth valve port 83 are closed, and the ninth valve port 93 is also closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432, and the second pipe section in sequence, and then flows back to the heat exchange module 20, so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0341] By adopting the above technical solution, the valve ports of the first switching valve 70, the second switching valve 80, and the third switching valve 90 can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0342] In some embodiments of this application, please refer to Figure 7 The energy storage device 100 also includes a first switching valve 70, a second switching valve 80 and a third switching valve 90. The first inlet end 421 is connected to the first pipe section through the first switching valve 70, the third inlet end 441 is connected to the second bypass pipe 43 through the second switching valve 80, and the fourth bypass pipe 45 is connected to the first pipe section or the second pipe section through the third switching valve 90.

[0343] In this embodiment, the first switching valve 70 is a valve body used to open or close the flow path between the first inlet end 421 and the first pipe section. The second switching valve 80 is a valve body used to open or close the flow path between the third inlet end 441 and the second bypass pipe 43. The third switching valve 90 is a valve body used to open or close the flow path between the fourth bypass pipe 45 and the first pipe section or the fourth bypass pipe 45 and the second pipe section. The first switching valve 70, the second switching valve 80, and the third switching valve 90 can be electric valves or manual valves.

[0344] In some embodiments, the fourth bypass pipe 45 is connected to the first pipe section via a third switching valve 90.

[0345] In the first operating condition, the first switching valve 70 shuts off the flow path between the first inlet end 421 and the first pipe section, the second switching valve 80 shuts off the flow path between the third inlet end 441 and the second bypass pipe 43, and the third switching valve 90 shuts off the flow path between the fourth bypass pipe 45 and the first pipe section, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 and the battery device 11 exchange heat.

[0346] In the second operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the first pipe section and closes the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section. The second switching valve 80 opens the flow path between the third inlet end 441 and the second bypass pipe 43 and closes the flow path between the third outlet end 442 and the second outlet end 432 along the second bypass pipe 43. The third switching valve 90 opens the flow path between the fourth bypass pipe 45 and the first pipe section and closes the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the first pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section in sequence and then flows back to the fourth bypass pipe 45 so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0347] In the third operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the first pipe section and closes the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section. The second switching valve 80 opens the flow path between the third inlet end 441 and the second bypass pipe 43 and closes the flow path between the third outlet end 442 and the second outlet end 432 along the second bypass pipe 43. The third switching valve 90 closes the flow path between the fourth bypass pipe 45 and the first pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the first pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section in sequence and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0348] In the fourth operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the first pipe section and closes the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section. The second switching valve 80 closes the flow path between the third inlet end 441 and the second bypass pipe 43 and opens the flow path between the third outlet end 442 and the second outlet end 432 along the second bypass pipe 43. The third switching valve 90 closes the flow path between the fourth bypass pipe 45 and the first pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the first pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432, and the second pipe section in sequence and then flows back to the heat exchange module 20 so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0349] In other embodiments, the fourth bypass pipe 45 is connected to the second pipe section via a third switching valve 90.

[0350] In the first operating condition, the first switching valve 70 shuts off the flow path between the first inlet end 421 and the first pipe section, the second switching valve 80 shuts off the flow path between the third inlet end 441 and the second bypass pipe 43, and the third switching valve 90 shuts off the flow path between the fourth bypass pipe 45 and the second pipe section, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 and the battery device 11 exchange heat.

[0351] In the second operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the first pipe section and closes the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section. The second switching valve 80 opens the flow path between the third inlet end 441 and the second bypass pipe 43 and closes the flow path between the third outlet end 442 and the second outlet end 432 along the second bypass pipe 43. The third switching valve 90 opens the flow path between the fourth bypass pipe 45 and the second pipe section and closes the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the second pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section in sequence and then flows back to the fourth bypass pipe 45 so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0352] In the third operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the first pipe section and closes the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section. The second switching valve 80 opens the flow path between the third inlet end 441 and the second bypass pipe 43 and closes the flow path between the third outlet end 442 and the second outlet end 432 along the second bypass pipe 43. The third switching valve 90 closes the flow path between the fourth bypass pipe 45 and the second pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the second pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section in sequence and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0353] In the fourth operating condition, the first switching valve 70 opens the flow path between the first inlet end 421 and the first pipe section and closes the flow path between the first inlet end 421 and the third outlet end 442 along the first pipe section. The second switching valve 80 closes the flow path between the third inlet end 441 and the second bypass pipe 43 and opens the flow path between the third outlet end 442 and the second outlet end 432 along the second bypass pipe 43. The third switching valve 90 closes the flow path between the fourth bypass pipe 45 and the second pipe section and opens the flow path between the heat exchange module 20 and the fourth bypass pipe 45 along the second pipe section. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432, and the second pipe section in sequence and then flows back to the heat exchange module 20 so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0354] By adopting the above technical solution, the first switching valve 70, the second switching valve 80 and the third switching valve 90 can be controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0355] In some embodiments of this application, please refer to Figure 7 The first switching valve 70 has a first valve port 71, a second valve port 72, and a third valve port 73. The first valve port 71 and the second valve port 72 are both connected to the first pipe section, and the third valve port 73 is connected to the first inlet end 421. The second switching valve 80 has a fourth valve port 81, a fifth valve port 82, and a sixth valve port 83. The fourth valve port 81 and the fifth valve port 82 are both connected to the second bypass pipe 43, and the sixth valve port 83 is connected to the third inlet end 441. The third switching valve 90 has a seventh valve port 91, an eighth valve port 92, and a ninth valve port 93. The seventh valve port 91 and the eighth valve port 92 are both connected to the first pipe section or the second pipe section, and the third valve port 73 is connected to the fourth bypass pipe 45.

[0356] It should be noted that, in this embodiment, the first valve port 71 and the second valve port 72 are arranged sequentially along the flow direction of the heat exchange medium in the third circulation pipeline 414, the fourth valve port 81 and the fifth valve port 82 are arranged sequentially along the flow direction of the heat exchange medium in the second bypass pipe 43, and the seventh valve port 91 and the eighth valve port 92 are arranged sequentially along the flow direction of the heat exchange medium in the third circulation pipeline 414.

[0357] In some embodiments, both the seventh valve port 91 and the eighth valve port 92 are connected to the first pipe section.

[0358] In the first operating condition, the first valve port 71, the second valve port 72, the fourth valve port 81, the fifth valve port 82, the seventh valve port 91 and the eighth valve port 92 are opened, and the third valve port 73, the sixth valve port 83 and the ninth valve port 93 are closed, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 exchanges heat with the battery device 11.

[0359] In the second operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81, the sixth valve port 83, the eighth valve port 92, and the ninth valve port 93 are opened, and the second valve port 72, the fifth valve port 82, and the seventh valve port 91 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the fourth bypass pipe 45, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0360] In the third operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81, the sixth valve port 83, the seventh valve port 91, and the eighth valve port 92 are opened, and the second valve port 72, the fifth valve port 82, and the ninth valve port 93 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0361] In the fourth operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81, the fifth valve port 82, the seventh valve port 91 and the eighth valve port 92 are opened, and the second valve port 72, the sixth valve port 83 and the ninth valve port 93 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432 and the second pipe section in sequence and then flows back to the heat exchange module 20 so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0362] In other embodiments, both the seventh valve port 91 and the eighth valve port 92 are connected to the second pipe section.

[0363] In the first operating condition, the first valve port 71, the second valve port 72, the fourth valve port 81, the fifth valve port 82, the seventh valve port 91 and the eighth valve port 92 are opened, and the third valve port 73, the sixth valve port 83 and the ninth valve port 93 are closed, so that the heat exchange medium stops flowing in the first bypass pipe 42, the second bypass pipe 43, the third bypass pipe 44 and the fourth bypass pipe 45. At this time, the heat exchange medium in the third circulation pipe 414 circulates along the third circulation pipe 414 so that the heat exchange module 20 exchanges heat with the battery device 11.

[0364] In the second operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81, the sixth valve port 83, the seventh valve port 91, and the ninth valve port 93 are opened, and the second valve port 72, the fifth valve port 82, and the eighth valve port 92 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the fourth bypass pipe 45 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the fourth bypass pipe 45, so that the heat dissipation module 30 and the battery device 11 can exchange heat.

[0365] In the third operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81, the sixth valve port 83, the seventh valve port 91, and the eighth valve port 92 are opened, and the second valve port 72, the fifth valve port 82, and the ninth valve port 93 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the third inlet end 441, the third outlet end 442, the battery device 11, and the second pipe section, and then flows back to the heat exchange module 20, so that both the heat exchange module 20 and the heat dissipation module 30 exchange heat with the battery device 11.

[0366] In the fourth operating condition, the first valve port 71, the third valve port 73, the fourth valve port 81, the fifth valve port 82, the seventh valve port 91 and the eighth valve port 92 are opened, and the second valve port 72, the sixth valve port 83 and the ninth valve port 93 are closed. At this time, the heat exchange medium in the third circulation pipeline 414 flows from the heat exchange module 20 through the first pipe section, the first inlet end 421, the heat dissipation module 30, the second outlet end 432 and the second pipe section in sequence and then flows back to the heat exchange module 20 so that the heat exchange module 20 and the heat dissipation module 30 can exchange heat.

[0367] By adopting the above technical solution, the valve ports of the first switching valve 70, the second switching valve 80, and the third switching valve 90 can be closed and controlled according to different operating conditions to change the flow path of the heat exchange medium, thereby realizing the switching of the operating conditions of the energy storage device 100.

[0368] In some embodiments of this application, please refer to Figure 9 The battery device 11 includes a battery cell 112 and a thermal management component 113. The thermal management component 113 is used to exchange heat for the battery cell 112 and is connected to the main heat exchange pipeline 41.

[0369] A single battery cell 112 is the smallest unit used for storing electrical energy. In this embodiment, the single battery cell 112 can be a secondary battery, which refers to a single battery cell 112 that can be recharged after being discharged to activate the active materials and continue to be used.

[0370] The battery cell 112 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0371] The thermal management component 113 is used to exchange heat with the battery cell 112. The thermal management component 113 can be in direct contact with the battery cell 112 or indirect contact with the battery cell 112 to exchange heat with the battery cell 112. The thermal management component 113 can be, but is not limited to, a plate-like structure, a tubular structure, etc.

[0372] In some embodiments, a heat exchange channel is formed inside the thermal management component 113. The heat exchange medium can enter the heat exchange channel of the thermal management component 113 and flow along the heat exchange channel to remove heat from the battery cell 112 or transfer heat to the battery cell 112. As an example, the thermal management component 113 can be connected to the heat exchange module 20 and / or the heat dissipation module 30 through the heat exchange pipeline assembly 40, so that the heat exchange medium flows between the heat exchange module 20 and the thermal management component 113 and / or between the heat dissipation module 30 and the thermal management component 113, thereby realizing the heat exchange connection between the thermal management component 113 and the heat exchange module 20 and / or the heat dissipation module 30.

[0373] By adopting the above technical solution, the battery cell 112 can exchange heat with the heat exchange module 20 and / or the heat dissipation module 30 through the thermal management component 113, which facilitates the adjustment of the temperature of the battery cell 112.

[0374] In some embodiments of this application, the heat dissipation module 30 includes a first temperature detection unit for detecting the temperature of an atmospheric source.

[0375] The first temperature detection unit is a component used to detect the temperature of an atmospheric source. The first temperature detection unit can be, but is not limited to, a thermocouple sensor, a resistance temperature detector (RTD) sensor, a semiconductor sensor, an infrared sensor, a fiber optic sensor, a capacitive sensor, a pressure sensor, an acoustic sensor, etc.

[0376] Understandably, the detection end of the first temperature detection unit is exposed to the atmospheric source in order to detect the temperature of the atmospheric source.

[0377] By adopting the above technical solution, the temperature of the atmospheric source can be monitored in real time, so as to switch the operating conditions of the energy storage device 100 according to the temperature changes of the atmospheric source.

[0378] In some embodiments of this application, the heat exchange module 20 includes a second temperature detection unit for detecting the temperature of the ground source.

[0379] The second temperature detection unit is a component used to detect the temperature of the ground source. The second temperature detection unit can be, but is not limited to, thermocouple sensors, resistance temperature detectors (RTDs), semiconductor sensors, infrared sensors, fiber optic sensors, capacitive sensors, pressure sensors, and acoustic sensors.

[0380] Understandably, the detection end of the second temperature detection unit is buried in the ground source to detect the temperature of the ground source.

[0381] By adopting the above technical solution, the temperature of the ground source can be monitored in real time, so as to switch the operating conditions of the energy storage device 100 according to the temperature changes of the ground source.

[0382] In some embodiments of this application, multiple battery devices 11 are connected in series via heat exchange tubes.

[0383] The arrangement of multiple battery devices 11 in series via heat exchange pipelines means that the heat exchange medium can flow through each battery device 11 in sequence after entering the energy storage module 10.

[0384] In some embodiments, the battery device 11 includes a battery cell 112 and a thermal management component 113. The thermal management component 113 is used to exchange heat with the battery cell 112. The thermal management component 113 is connected to the heat exchange module 20 and / or the heat dissipation module 30 for heat exchange. Multiple thermal management components 113 are connected in series through heat exchange pipelines.

[0385] In other embodiments of this application, the energy storage module 10 includes multiple battery clusters, each battery cluster including multiple battery devices 11. The multiple battery clusters are connected in parallel via heat exchange tubes, and the multiple battery devices 11 in the battery clusters are connected in series via heat exchange tubes.

[0386] Multiple battery clusters are connected in parallel via heat exchange pipelines, which means that multiple heat exchange media enter the corresponding battery clusters respectively, and then flow out of each battery cluster and converge together.

[0387] Multiple battery devices 11 are connected in series via heat exchange pipelines, meaning that after the heat exchange medium enters the corresponding battery cluster, it can flow through each battery device 11 in the battery cluster in sequence.

[0388] In some embodiments, the battery device 11 includes a battery cell 112 and a thermal management component 113. The thermal management component 113 is used to exchange heat with the battery cell 112. The thermal management component 113 is connected to the heat exchange module 201 and / or the heat dissipation module 30 for heat exchange. Multiple thermal management components 113 in the battery cluster are connected in series through heat exchange pipelines.

[0389] By adopting the above technical solution, the temperature of the heat exchange medium flowing through each battery device 11 can be kept as consistent as possible, effectively reducing the temperature difference between each battery device 11, thereby effectively improving the working performance of the energy storage device 100.

[0390] Please refer to some embodiments of this application as well. Figures 1 to 7 The heat exchange module 20 includes multiple buried pipes 21, which are buried in the ground source and connected to the main heat exchange pipeline 41.

[0391] The buried pipe 21 is used to circulate the heat exchange medium. Understandably, the heat exchange medium flows into the buried pipe 21 from one end and then flows out from the other end, so that the heat exchange module 20 can exchange heat with the ground source.

[0392] In some embodiments, multiple buried pipes 21 are connected in parallel, that is, multiple heat exchange media enter one end of the corresponding buried pipe 21 and then flow out from the other end of each buried pipe 21 and converge together to exchange heat between the heat exchange module 20 and the ground source.

[0393] By adopting the above technical solution, the contact area between the heat exchange module 20 and the ground source can be increased, thereby effectively improving the heat exchange efficiency between the heat exchange module 20 and the ground source.

[0394] In some embodiments of this application, the heat dissipation module 30 includes at least one of a heat pipe, a finned heat sink, and a cooling fan.

[0395] In some embodiments, the heat dissipation module 30 includes a heat dissipation pipe and a cooling fan. The heat dissipation pipe is in direct or indirect contact with the battery device 11 to exchange heat with the battery device 11, and the cooling fan is used to exhaust the heat from the heat dissipation pipe to the atmosphere.

[0396] By adopting the above technical solution, the operating power consumption of the energy storage device 100 is further reduced, thereby further improving the energy storage efficiency of the energy storage device 100.

[0397] Secondly, please refer to Figure 12 This application provides a thermal management method for an energy storage device 100 as described in any of the above embodiments. The thermal management method includes the following steps:

[0398] When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 is switched to the first operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 is connected and the heat exchange path between the heat dissipation module 30 and the battery device 11 is disconnected.

[0399] When the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 is switched to the second operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 is disconnected and the heat exchange path between the heat dissipation module 30 and the battery device 11 is connected, where T2 < T1.

[0400] A continuous heat exchange path between the heat exchange module 20 and the battery device 11 means that the heat exchange medium can circulate between the heat exchange module 20 and the battery device 11, allowing heat exchange between them. Conversely, a disconnected heat exchange path between the heat exchange module 20 and the battery device 11 means that the heat exchange medium stops circulating between them, and heat exchange cannot occur between them.

[0401] A conductive heat exchange path between the heat dissipation module 30 and the battery device 11 means that the heat exchange medium can circulate between the heat dissipation module 30 and the battery device 11, allowing heat exchange between them. Conversely, a disconnected heat exchange path between the heat dissipation module 30 and the battery device 11 means that the heat exchange medium stops circulating between them, and heat exchange cannot occur.

[0402] In some embodiments, the heat dissipation module 30 includes a first temperature detection unit for detecting the temperature of an atmospheric source. If the first temperature detection unit detects that the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 is switched to a first operating condition; if the first temperature detection unit detects that the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 is switched to a second operating condition.

[0403] The thermal management method provided in this application embodiment can switch the energy storage device 100 to a first operating condition or a second operating condition according to the temperature change of the atmospheric source, thereby effectively reducing the operating power consumption of the energy storage device 100 and thus effectively improving the energy storage efficiency of the energy storage device 100.

[0404] Thirdly, please refer to Figure 13 This application provides a thermal management method for an energy storage device 100 as described in any of the above embodiments. The thermal management method includes the following steps:

[0405] When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 is switched to the first operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 is connected and the heat exchange path between the heat dissipation module 30 and the battery device 11 is disconnected.

[0406] When the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 is switched to the second operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 is disconnected and the heat exchange path between the heat dissipation module 30 and the battery device 11 is connected.

[0407] When the temperature of the atmospheric source is less than T1 and greater than T2, the energy storage device 100 is switched to the third operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 and the heat exchange path between the heat dissipation module 30 and the battery device 11 are both connected.

[0408] A continuous heat exchange path between the heat exchange module 20 and the battery device 11 means that the heat exchange medium can circulate between the heat exchange module 20 and the battery device 11, allowing heat exchange between them. Conversely, a disconnected heat exchange path between the heat exchange module 20 and the battery device 11 means that the heat exchange medium stops circulating between them, and heat exchange cannot occur between them.

[0409] A conductive heat exchange path between the heat dissipation module 30 and the battery device 11 means that the heat exchange medium can circulate between the heat dissipation module 30 and the battery device 11, allowing heat exchange between them. Conversely, a disconnected heat exchange path between the heat dissipation module 30 and the battery device 11 means that the heat exchange medium stops circulating between them, and heat exchange cannot occur.

[0410] In some embodiments, the heat dissipation module 30 includes a first temperature detection unit for detecting the temperature of an atmospheric source. When the first temperature detection unit detects that the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 is switched to a first operating condition; when the first temperature detection unit detects that the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 is switched to a second operating condition; and when the first temperature detection unit detects that the temperature of the atmospheric source is less than T1 but greater than T2, the energy storage device 100 is switched to a third operating condition.

[0411] The thermal management method provided in this application embodiment can switch the energy storage device 100 to a first operating condition, a second operating condition, or a third operating condition according to the temperature change of the atmospheric source, thereby effectively reducing the operating power consumption of the energy storage device 100 and thus effectively improving the energy storage efficiency of the energy storage device 100.

[0412] Fourthly, please refer to Figure 14 This application provides a thermal management method for an energy storage device 100 as described in any of the above embodiments. The thermal management method includes the following steps:

[0413] When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 is switched to the first operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 is connected and the heat exchange path between the heat dissipation module 30 and the battery device 11 is disconnected.

[0414] When the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 is switched to the second operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 is disconnected and the heat exchange path between the heat dissipation module 30 and the battery device 11 is connected.

[0415] When the temperature of the atmospheric source is less than T1 and greater than T2, the energy storage device 100 is switched to the third operating condition so that the heat exchange path between the heat exchange module 20 and the battery device 11 and the heat exchange path between the heat dissipation module 30 and the battery device 11 are both connected.

[0416] When the temperature of the ground source is greater than the temperature of the atmospheric source and the temperature of the battery device 11 is less than the threshold, the energy storage device 100 is switched to the fourth operating condition so that the heat exchange path between the heat exchange module 20 and the heat dissipation module 30 is connected, and the heat exchange path between the heat exchange module 20 and the battery device 11 and the heat dissipation module 30 and the battery device 11 are disconnected.

[0417] A continuous heat exchange path between the heat exchange module 20 and the battery device 11 means that the heat exchange medium can circulate between the heat exchange module 20 and the battery device 11, allowing heat exchange between them. Conversely, a disconnected heat exchange path between the heat exchange module 20 and the battery device 11 means that the heat exchange medium stops circulating between them, and heat exchange cannot occur between them.

[0418] A conductive heat exchange path between the heat dissipation module 30 and the battery device 11 means that the heat exchange medium can circulate between the heat dissipation module 30 and the battery device 11, allowing heat exchange between them. Conversely, a disconnected heat exchange path between the heat dissipation module 30 and the battery device 11 means that the heat exchange medium stops circulating between them, and heat exchange cannot occur.

[0419] In some embodiments, the heat dissipation module 30 includes a first temperature detection unit, and the heat exchange module 20 includes a second temperature detection unit. The first temperature detection unit is used to detect the temperature of the atmospheric source, and the second temperature detection unit is used to detect the temperature of the ground source. When the first temperature detection unit detects that the temperature of the atmospheric source is greater than or equal to T1, the energy storage device 100 is switched to a first operating condition. When the first temperature detection unit detects that the temperature of the atmospheric source is less than or equal to T2, the energy storage device 100 is switched to a second operating condition. When the first temperature detection unit detects that the temperature of the atmospheric source is less than T1 and greater than T2, the energy storage device 100 is switched to a third operating condition. When the temperature of the battery device 11 is less than a threshold and the second temperature detection unit detects that the temperature of the ground source is greater than the temperature of the atmospheric source, the energy storage device 100 is switched to a fourth operating condition.

[0420] The thermal management method provided in this application embodiment can switch the energy storage device 100 to a first operating condition, a second operating condition, a third operating condition, or a fourth operating condition according to the temperature change of the atmospheric source, thereby effectively reducing the operating power consumption of the energy storage device 100 and thus effectively improving the energy storage efficiency of the energy storage device 100.

[0421] Fifthly, please refer to the following: Figure 8 and Figure 9This application provides an energy storage module 10, including multiple battery devices 11 and a housing 12 for accommodating the multiple battery devices 11. The housing 12 is provided with a first heat exchange interface 121 and a second heat exchange interface 122. The battery device 11 includes a battery cell 112 and a thermal management component 113 for exchanging heat with the battery cell 112. The heat exchange inlet of the thermal management component 113 is connected to the first heat exchange interface 121, and the heat exchange outlet of the thermal management component 113 is connected to the second heat exchange interface 122. The first heat exchange interface 121 and the second heat exchange interface 122 are used to connect to a heat exchange module buried in the ground source.

[0422] Understandably, the heat exchange module can be the heat exchange module 20 in the energy storage device 100 described in any of the above embodiments, that is, the first heat exchange interface 121 and the second heat exchange interface 122 can be connected to the heat exchange module 20 through the main heat exchange pipeline 41 in the energy storage device 100 described in any of the above embodiments.

[0423] The housing 12 provides space for accommodating the battery device 11. In some embodiments, the housing 12 is a container, and its dimensions can be, but are not limited to, 20 feet, 40 feet, 45 feet, etc. A first heat exchange port 121 and a second heat exchange port 122 are used to connect the heat exchange module 20. In some embodiments, the first heat exchange port 121 is connected to the heat exchange outlet of the heat exchange module 20 via a main heat exchange pipeline 41, and the second heat exchange port 122 is connected to the heat exchange inlet of the heat exchange module 20 via the main heat exchange pipeline 41.

[0424] The battery cell 112 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0425] The thermal management component 113 is used to exchange heat with the battery cell 112. The thermal management component 113 can be in direct contact with the battery cell 112 or indirect contact with the battery cell 112 to exchange heat with the battery cell 112. The thermal management component 113 can be, but is not limited to, a plate-like structure, a tubular structure, etc.

[0426] In some embodiments, a heat exchange channel is formed inside the thermal management component 113. The heat exchange medium can enter the heat exchange channel of the thermal management component 113 and flow along the heat exchange channel to remove heat from the battery cell 112 or transfer heat to the battery cell 112. The heat exchange inlet and heat exchange outlet of the thermal management component 113 are both connected to the heat exchange channel. The heat exchange inlet of the thermal management component 113 is connected to the first heat exchange interface 121, and the heat exchange outlet of the thermal management component 113 is connected to the second heat exchange interface 122, so that the heat exchange medium can flow between the heat exchange module 20 and the battery device 11 through the first heat exchange interface 121 and the second heat exchange interface 122 to realize the heat exchange connection between the thermal management component 113 and the heat exchange module 20.

[0427] The energy storage module 10 provided in this application embodiment effectively reduces the electrical energy consumed by the energy storage module 10 in temperature regulation by connecting to the heat exchange module 20 buried in the ground source, thereby effectively improving the energy storage efficiency of the energy storage module 10.

[0428] In some embodiments of this application, a heat dissipation module is provided on the housing 12, and the battery device 11 exchanges heat with the atmospheric source through the heat dissipation module.

[0429] Understandably, the aforementioned heat dissipation module may be the heat dissipation module 30 in the energy storage device 100 described in any of the above embodiments.

[0430] By adopting the above technical solution, the heat dissipation module 30 and the energy storage module 10 can be integrated together, thereby effectively simplifying the structure of the energy storage device 100 and facilitating its installation, transportation and sale.

[0431] In some embodiments of this application, the heat dissipation module 30 is disposed outside the housing 12, that is, all of the heat dissipation modules 30 are disposed outside the housing 12.

[0432] The heat dissipation module 30 can be installed on one or more side walls of the compartment 12, or on the top wall of the compartment 12.

[0433] By adopting the above technical solution, it is easy to install the heat dissipation module 30 onto the housing 12.

[0434] In some other embodiments of this application, the heat dissipation module 30 is disposed inside the housing 12, that is, all of the heat dissipation modules 30 are disposed inside the housing 12.

[0435] The heat dissipation module 30 can be installed on one or more side walls of the compartment 12, or on the top wall of the compartment 12.

[0436] By adopting the above technical solution, it is easy to install the heat dissipation module 30 onto the housing 12.

[0437] In some other embodiments of this application, a portion of the heat dissipation module 30 is disposed outside the housing 12, and another portion of the heat dissipation module 30 is disposed inside the housing 12.

[0438] Understandably, the heat dissipation module 30 can be disposed on any one or more side walls of the compartment 12, or on the top wall of the compartment 12. A portion of the heat dissipation module 30 is disposed inside the compartment 12 and is used for heat exchange with the battery device 11, while another portion of the heat dissipation module 30 is disposed in the external atmospheric environment of the compartment 12 to transfer the heat of the battery device 11 to the atmospheric source.

[0439] By adopting the above technical solution, it is easy to install the heat dissipation module 30 onto the housing 12.

[0440] In some embodiments of this application, the heat dissipation module 30 is disposed outside the chamber 12, and the chamber 12 is provided with a third heat exchange interface and a fourth heat exchange interface. The third heat exchange interface is used to connect to the heat exchange outlet of the heat dissipation module 30, and the fourth heat exchange interface is used to connect to the heat exchange inlet of the heat dissipation module 30.

[0441] The third and fourth heat exchange interfaces are used to connect the heat dissipation module 30. In some embodiments, the third heat exchange interface is connected to the heat exchange outlet of the heat dissipation module 30 through a pipe, and the fourth heat exchange interface is connected to the heat exchange inlet of the heat dissipation module 30 through a pipe.

[0442] By adopting the above technical solution, it is convenient for the heat dissipation module 30 and the energy storage module 10 to exchange heat.

[0443] For the sixth aspect, please refer to Figure 10 This application provides an energy storage system 1000, which includes the energy storage device 100 or the energy storage module 10 described in any of the above embodiments.

[0444] The energy storage system 1000 provided in this application embodiment effectively reduces the operating power consumption of the energy storage system 1000 by adopting the energy storage device 100 or the energy storage module 10 described in any of the above embodiments, thereby effectively improving the energy storage efficiency of the energy storage system 1000.

[0445] For the seventh aspect, please refer to Figure 11 This application provides a charging network 2000, including a charging pile 400 and an energy storage device 100 or an energy storage module 10 as described in any of the above embodiments. The energy storage module 10 is used to provide power to the charging pile 400.

[0446] The charging network 2000 provided in this application embodiment effectively reduces the operating power consumption of the charging network 2000 by employing the energy storage device 100 or the energy storage module 10 described in any of the above embodiments.

[0447] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy storage device, characterized in that, The energy storage device includes: Energy storage module, comprising multiple battery devices; A heat exchange module, at least partially buried in a ground source for heat exchange with the ground source; A heat dissipation module, which is at least partially exposed to an atmospheric source for heat exchange with the atmospheric source; A heat exchange piping assembly for circulating a heat exchange medium includes a main heat exchange piping, a first bypass pipe, a second bypass pipe, and a third bypass pipe. The main heat exchange piping connects the energy storage module and the heat exchange module, allowing the heat exchange module and the battery device to exchange heat through the main heat exchange piping. The first bypass pipe connects the main heat exchange piping to the heat exchange inlet of the heat dissipation module. The second bypass pipe connects the main heat exchange piping to the heat exchange outlet of the heat dissipation module. The third bypass pipe connects the main heat exchange piping to the second bypass pipe. The heat exchange medium can flow from the main heat exchange piping sequentially through the first bypass pipe, the heat dissipation module, the second bypass pipe, and the third bypass pipe, then return to the main heat exchange piping and flow through the battery device, allowing the heat dissipation module and the battery device to exchange heat.

2. The energy storage device as described in claim 1, characterized in that, The energy storage device has a first operating condition and a second operating condition. In the first operating condition, the heat exchange module and the battery device exchange heat through the main heat exchange pipeline. In the second operating condition, the heat exchange medium flows from the main heat exchange pipeline through the first bypass pipe, the heat dissipation module, the second bypass pipe and the third bypass pipe in sequence, and then flows back to the main heat exchange pipeline and through the battery device, so that the heat dissipation module and the battery device exchange heat.

3. The energy storage device as described in claim 2, characterized in that, The energy storage device also has a third operating condition. In the third operating condition, the heat exchange module and the battery device exchange heat through the main heat exchange pipeline. The heat exchange medium flows from the main heat exchange pipeline through the first bypass pipe, the heat dissipation module, the second bypass pipe and the third bypass pipe in sequence, and then flows back to the main heat exchange pipeline and through the battery device, so that the heat dissipation module and the battery device exchange heat.

4. The energy storage device as described in claim 3, characterized in that, The energy storage device also has a fourth operating condition, in which the heat exchange medium flows from the main heat exchange pipeline through the first bypass pipe, the heat dissipation module and the second bypass pipe in sequence and then flows back to the main heat exchange pipeline, so that the heat exchange module and the heat dissipation module can exchange heat.

5. The energy storage device according to any one of claims 1-4, characterized in that, The main heat exchange pipeline includes a first circulation pipeline and a second circulation pipeline. The heat exchange module is disposed on the first circulation pipeline, and multiple battery devices are disposed on the second circulation pipeline. The heat exchange medium in the first circulation pipeline is used to exchange heat with the heat exchange medium in the second circulation pipeline. The first bypass pipe, the second bypass pipe, and the third bypass pipe are all connected to the second circulation pipeline.

6. The energy storage device as described in claim 5, characterized in that, The heat exchange piping assembly further includes a heat exchanger having a first heat exchange side and a second heat exchange side, the first circulation pipe being connected to the first heat exchange side and the second circulation pipe being connected to the second heat exchange side, the first heat exchange side being used for heat exchange with the second heat exchange side.

7. The energy storage device as described in claim 6, characterized in that, The number of energy storage modules is multiple. The second circulation pipeline includes a first manifold, a second manifold, and multiple first branch pipes. One port of each of the multiple first branch pipes is connected to the heat exchange outlet of the second heat exchange side through the first manifold. The other port of each of the multiple first branch pipes is connected to the heat exchange inlet of the second heat exchange side through the second manifold. The multiple energy storage modules are arranged one-to-one with the multiple first branch pipes.

8. The energy storage device as described in claim 7, characterized in that, The energy storage device further includes a first power module, which is disposed on the first manifold or the second manifold to drive the heat exchange medium to circulate in the second circulation pipeline.

9. The energy storage device as described in claim 7, characterized in that, The energy storage device also includes multiple first power modules, which are configured one-to-one with multiple first branch pipes to drive the heat exchange medium to circulate in the second circulation pipeline.

10. The energy storage device according to any one of claims 5-9, characterized in that, The energy storage device also includes a second power module, which is disposed on the first circulation pipeline to drive the heat exchange medium to circulate in the first circulation pipeline.

11. The energy storage device as described in claim 6, characterized in that, The number of energy storage modules, the number of heat exchangers, and the number of second circulation pipelines are all multiple. Multiple energy storage modules are arranged in a one-to-one correspondence with multiple second circulation pipelines, and multiple second circulation pipelines are arranged in a one-to-one correspondence with multiple second heat exchange sides. Multiple first heat exchange sides are all connected to the first circulation pipelines.

12. The energy storage device as described in claim 11, characterized in that, The energy storage device also includes multiple first power modules, which are configured one-to-one with multiple second circulation pipelines to drive the heat exchange medium to circulate in the second circulation pipelines.

13. The energy storage device as described in claim 11 or 12, characterized in that, The first circulation pipeline includes a third manifold, a fourth manifold, multiple first outlet pipes, and multiple first return pipes. One end of each of the multiple first outlet pipes is connected to the heat exchange outlet of the heat exchange module through the third manifold, and the other end of each of the multiple first outlet pipes is connected to the heat exchange inlet of each of the multiple first heat exchange sides. One end of each of the multiple first return pipes is connected to the heat exchange inlet of the heat exchange module through the fourth manifold, and the other end of each of the multiple first return pipes is connected to the heat exchange outlet of each of the multiple first heat exchange sides.

14. The energy storage device as described in claim 13, characterized in that, The heat exchange module further includes a second power module, which is disposed on the third or fourth manifold to drive the heat exchange medium to circulate in the first circulation pipeline.

15. The energy storage device as described in claim 13, characterized in that, The energy storage device also includes multiple second power modules, which are configured one-to-one with multiple first liquid outlet pipes, or the multiple second power modules are configured one-to-one with multiple first liquid return pipes, so as to drive the heat exchange medium to circulate in the first circulation pipeline.

16. The energy storage device according to any one of claims 7-9, characterized in that, The number of heat dissipation modules is multiple, and each of the multiple heat dissipation modules is connected to a multiple of the first branch pipes in a one-to-one correspondence.

17. The energy storage device according to any one of claims 11-15, characterized in that, The number of heat dissipation modules is multiple, and each of the multiple heat dissipation modules is connected to a multiple second circulation pipeline in a one-to-one correspondence.

18. The energy storage device according to any one of claims 5-17, characterized in that, The first bypass pipe has a first inlet end and a first outlet end. The first inlet end is connected to the second circulation pipe and is located upstream of the energy storage module. The first outlet end is connected to the heat exchange inlet of the heat dissipation module. The second bypass pipe has a second inlet end and a second outlet end. The second outlet end is connected to the second circulation pipe and is located downstream of the energy storage module. The second inlet end is connected to the heat exchange outlet of the heat dissipation module. The third bypass pipe has a third inlet end and a third outlet end. The third inlet end is connected to the second bypass pipe. The third outlet end is connected to the second circulation pipe and is located between the first inlet end and the upstream side of the energy storage module.

19. The energy storage device as described in claim 18, characterized in that, The energy storage device further includes a first switching valve and a second switching valve. The second outlet end is connected to the second circulation pipeline through the first switching valve, and the third outlet end is connected to the second circulation pipeline through the second switching valve.

20. The energy storage device as described in claim 19, characterized in that, The first switching valve has a first valve port, a second valve port, and a third valve port. The first valve port and the second valve port are both connected to the second circulation pipeline, and the third valve port is connected to the second outlet end. The second switching valve has a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port and the fifth valve port are both connected to the second circulation pipeline, and the sixth valve port is connected to the third outlet end.

21. The energy storage device as described in claim 18, characterized in that, The energy storage device further includes a first switching valve and a second switching valve. The first inlet end is connected to the second circulation pipeline through the first switching valve, and the third inlet end is connected to the second bypass pipe through the second switching valve.

22. The energy storage device as described in claim 21, characterized in that, The first switching valve has a first valve port, a second valve port, and a third valve port. The first valve port and the second valve port are both connected to the second circulation pipeline, and the third valve port is connected to the first inlet end. The second switching valve has a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port and the fifth valve port are both connected to the second bypass pipe, and the sixth valve port is connected to the third inlet end.

23. The energy storage device according to any one of claims 1-4, characterized in that, The main heat exchange pipeline includes a third circulation pipeline, which is used to connect the heat exchange module and the battery device. The first bypass pipe, the second bypass pipe and the third bypass pipe are all connected to the third circulation pipeline.

24. The energy storage device as described in claim 23, characterized in that, The energy storage modules are multiple, and the third circulation pipeline includes a second outlet pipe, a second return pipe and multiple second branch pipes. One end of each of the multiple second branch pipes is connected to the heat exchange outlet of the heat exchange module through the second outlet pipe, and the other end of each of the multiple second branch pipes is connected to the heat exchange inlet of the heat exchange module through the second return pipe. The multiple energy storage modules are arranged in a one-to-one correspondence with the multiple second branch pipes.

25. The energy storage device as described in claim 24, characterized in that, The energy storage device also includes a first power module, which is disposed on the second liquid outlet pipe or the second liquid return pipe to drive the heat exchange medium to circulate in the third circulation pipeline.

26. The energy storage device as described in claim 24, characterized in that, The energy storage device also includes multiple first power modules, which are configured one-to-one with multiple second branch pipes to drive the heat exchange medium to circulate in the third circulation pipeline.

27. The energy storage device according to any one of claims 24-26, characterized in that, The number of heat dissipation modules is multiple, and each of the multiple heat dissipation modules is connected to a multiple of the second branch pipes in a one-to-one correspondence.

28. The energy storage device according to any one of claims 23-27, characterized in that, The heat exchange pipeline assembly further includes a fourth bypass pipe. The third circulation pipeline includes a first pipe section and a second pipe section. The first pipe section is connected between the heat exchange outlet of the heat exchange module and the energy storage module. The second pipe section is connected between the heat exchange inlet of the heat exchange module and the energy storage module. The fourth bypass pipe is connected between the first pipe section and the second pipe section.

29. The energy storage device as described in claim 28, characterized in that, The first bypass pipe has a first inlet end and a first outlet end. The first inlet end is connected to the first pipe segment and located between the fourth bypass pipe and the energy storage module. The first outlet end is connected to the heat exchange inlet of the heat dissipation module. The second bypass pipe has a second inlet end and a second outlet end. The second outlet end is connected to the second pipe segment and located between the fourth bypass pipe and the energy storage module. The second inlet end is connected to the heat exchange outlet of the heat dissipation module. The third bypass pipe has a third inlet end and a third outlet end. The third inlet end is connected to the second bypass pipe. The third outlet end is connected to the first pipe segment and located between the first inlet end and the energy storage module.

30. The energy storage device as described in claim 29, characterized in that, The energy storage device further includes a first switching valve, a second switching valve, and a third switching valve. The second outlet end is connected to the second pipe section through the first switching valve, the third outlet end is connected to the first pipe section through the second switching valve, and the fourth bypass pipe is connected to the first pipe section or the second pipe section through the third switching valve.

31. The energy storage device as described in claim 30, characterized in that, The first switching valve has a first valve port, a second valve port, and a third valve port. The first valve port and the second valve port are both connected to the second pipe section, and the third valve port is connected to the second outlet end. The second switching valve has a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port and the fifth valve port are both connected to the first pipe section, and the sixth valve port is connected to the third outlet end. The third switching valve has a seventh valve port, an eighth valve port, and a ninth valve port. The seventh valve port and the eighth valve port are both connected to the first pipe section or the second pipe section, and the third valve port is connected to the fourth bypass pipe.

32. The energy storage device as described in claim 29, characterized in that, The energy storage device further includes a first switching valve, a second switching valve, and a third switching valve. The first inlet end is connected to the first pipe section through the first switching valve, the third inlet end is connected to the second bypass pipe through the second switching valve, and the fourth bypass pipe is connected to the first pipe section or the second pipe section through the third switching valve.

33. The energy storage device as described in claim 32, characterized in that, The first switching valve has a first valve port, a second valve port, and a third valve port. The first valve port and the second valve port are both connected to the first pipe section, and the third valve port is connected to the first inlet end. The second switching valve has a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port and the fifth valve port are both connected to the second bypass pipe, and the sixth valve port is connected to the third inlet end. The third switching valve has a seventh valve port, an eighth valve port, and a ninth valve port. The seventh valve port and the eighth valve port are both connected to the first pipe section or the second pipe section, and the third valve port is connected to the fourth bypass pipe.

34. The energy storage device according to any one of claims 1-33, characterized in that, The battery device includes a battery cell and a thermal management component. The thermal management component is used to exchange heat for the battery cell and is connected to the main heat exchange pipeline.

35. The energy storage device according to any one of claims 1-34, characterized in that, The heat dissipation module includes a first temperature detection unit, which is used to detect the temperature of the atmospheric source.

36. The energy storage device according to any one of claims 1-35, characterized in that, The heat exchange module includes a second temperature detection unit, which is used to detect the temperature of the ground source.

37. The energy storage device according to any one of claims 1-36, characterized in that, Multiple battery devices are connected in series via heat exchange tubes; or; The energy storage module includes multiple battery clusters, each battery cluster including multiple battery devices. The multiple battery clusters are connected in parallel via heat exchange tubes, and the multiple battery devices in the battery clusters are connected in series via heat exchange tubes.

38. The energy storage device according to any one of claims 1-37, characterized in that, The heat exchange module includes multiple buried pipes, all of which are buried in the ground source and connected to the main heat exchange pipeline.

39. The energy storage device according to any one of claims 1-38, characterized in that, The heat dissipation module includes at least one of a heat pipe, a finned heat sink, and a cooling fan.

40. A thermal management method for an energy storage device as described in claim 2, characterized in that, The thermal management method includes the following steps: When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device is switched to the first operating condition so that the heat exchange path between the heat exchange module and the battery device is connected and the heat exchange path between the heat dissipation module and the battery device is disconnected. When the temperature of the atmospheric source is less than or equal to T2, the energy storage device is switched to the second operating condition so that the heat exchange path between the heat exchange module and the battery device is disconnected and the heat exchange path between the heat dissipation module and the battery device is connected, where T2 < T1.

41. A thermal management method for an energy storage device as described in claim 3, characterized in that, The thermal management method includes the following steps: When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device is switched to the first operating condition so that the heat exchange path between the heat exchange module and the battery device is connected and the heat exchange path between the heat dissipation module and the battery device is disconnected. When the temperature of the atmospheric source is less than or equal to T2, the energy storage device is switched to the second operating condition so that the heat exchange path between the heat exchange module and the battery device is disconnected and the heat exchange path between the heat dissipation module and the battery device is connected. When the temperature of the atmospheric source is less than T1 and greater than T2, the energy storage device is switched to the third operating condition so that the heat exchange path between the heat exchange module and the battery device and the heat exchange path between the heat dissipation module and the battery device are both connected.

42. A thermal management method for an energy storage device as described in claim 4, characterized in that, The thermal management method includes the following steps: When the temperature of the atmospheric source is greater than or equal to T1, the energy storage device is switched to the first operating condition so that the heat exchange path between the heat exchange module and the battery device is connected and the heat exchange path between the heat dissipation module and the battery device is disconnected. When the temperature of the atmospheric source is less than or equal to T2, the energy storage device is switched to the second operating condition so that the heat exchange path between the heat exchange module and the battery device is disconnected and the heat exchange path between the heat dissipation module and the battery device is connected. When the temperature of the atmospheric source is less than T1 and greater than T2, the energy storage device is switched to the third operating condition so that the heat exchange path between the heat exchange module and the battery device and the heat exchange path between the heat dissipation module and the battery device are both connected. When the temperature of the ground source is greater than the temperature of the atmospheric source and the temperature of the battery device is less than a threshold, the energy storage device is switched to the fourth operating condition so that the heat exchange path between the heat exchange module and the heat dissipation module is connected, and the heat exchange path between the heat exchange module and the battery device and the heat dissipation module and the battery device are both disconnected.

43. An energy storage module, characterized in that, The energy storage module includes multiple battery devices and a housing for accommodating the multiple battery devices. The housing is provided with a first heat exchange interface and a second heat exchange interface. Each battery device includes a battery cell and a thermal management component for heat exchange of the battery cell. The heat exchange inlet of the thermal management component is connected to the first heat exchange interface, and the heat exchange outlet of the thermal management component is connected to the second heat exchange interface. The first heat exchange interface and the second heat exchange interface are used to connect to a heat exchange module buried in the ground source.

44. The energy storage module as described in claim 43, characterized in that, The chamber is equipped with a heat dissipation module, through which the battery device exchanges heat with the atmospheric source.

45. The energy storage module as described in claim 44, characterized in that, The heat dissipation module is located on the outside of the chamber; or... The heat dissipation module is located inside the compartment; or... One part of the heat dissipation module is located on the outside of the chamber, and the other part of the heat dissipation module is located inside the chamber.

46. ​​The energy storage module as described in claim 44, characterized in that, The heat dissipation module is disposed outside the chamber. The chamber is provided with a third heat exchange interface and a fourth heat exchange interface. The third heat exchange interface is used to connect to the heat exchange outlet of the heat dissipation module, and the fourth heat exchange interface is used to connect to the heat exchange inlet of the heat dissipation module.

47. An energy storage system, characterized in that, The energy storage system includes an energy storage device as described in any one of claims 1-39 or an energy storage module as described in any one of claims 43-46.

48. A charging network, characterized in that, The charging network includes charging piles and an energy storage device as described in any one of claims 1-39 or an energy storage module as described in any one of claims 43-46, wherein the energy storage module is used to provide electrical energy to the charging piles.

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