Temperature control system and energy storage container

Abstract

The application provides a temperature control system and an energy storage container. The temperature control system comprises: a first liquid cooling pipeline configured to deliver heat exchange working medium to a battery pack to perform heat exchange with the battery pack; a second liquid cooling pipeline configured to deliver heat exchange working medium to an energy storage converter to perform heat exchange with the energy storage converter; and a liquid cooling machine configured to provide heat exchange working medium to the first liquid cooling pipeline and the second liquid cooling pipeline respectively. The first liquid cooling pipeline and the second liquid cooling pipeline are connected to the liquid cooling machine respectively. At least part of the first liquid cooling pipeline and at least part of the second liquid cooling pipeline are arranged in a first direction. In a projection plane perpendicular to the first direction, a projection of the first liquid cooling pipeline and a projection of the second liquid cooling pipeline at least partially overlap. The above scheme can improve the compactness of the first liquid cooling pipeline and the second liquid cooling pipeline in spatial arrangement, reduce the space occupied by the temperature control system, and further reduce the influence on the arrangement of the battery pack and the energy storage converter, thereby ensuring the overall energy density.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, specifically to a temperature control system and an energy storage container. Background Technology

[0002] An energy storage container is a modular and standardized integrated energy storage system. It is a closed device that integrates a battery pack, a battery management system, a temperature control system, etc. It is mainly used to store and release electrical energy. The temperature control system can realize the thermal management of the battery pack.

[0003] In related technologies, to achieve bidirectional conversion and control between DC and AC power, energy storage containers also integrate power conversion systems (PCS). Since these PCS generate a significant amount of heat during operation, a temperature control system is required to manage their thermal performance. However, current temperature control systems occupy a large space, affecting the arrangement of the battery pack and power conversion system, and reducing overall energy density. Utility Model Content

[0004] The embodiments of this application provide a temperature control system and an energy storage container to at least partially solve the above-mentioned technical problems.

[0005] In a first aspect, embodiments of this application provide a temperature control system, comprising:

[0006] The first liquid cooling pipeline is configured to deliver a heat exchange medium to the battery pack for heat exchange with the battery pack.

[0007] The second liquid cooling pipeline is configured to deliver a heat exchange medium to the energy storage converter for heat exchange with the energy storage converter.

[0008] A liquid chiller is configured to provide heat exchange medium to the first liquid cooling pipeline and the second liquid cooling pipeline, respectively;

[0009] The first liquid cooling pipe and the second liquid cooling pipe are respectively connected to the liquid chiller. At least a portion of the first liquid cooling pipe and at least a portion of the second liquid cooling pipe are spaced apart along a first direction, and on a projection plane perpendicular to the first direction, the projection of the first liquid cooling pipe and the projection of the second liquid cooling pipe at least partially overlap.

[0010] By adopting the above scheme, the same liquid cooler can simultaneously provide heat exchange medium for the first and second liquid cooling pipelines, enabling unified thermal management of the battery pack and energy storage converter, and simplifying the piping structure of the temperature control system. Furthermore, by arranging at least a portion of the first and second liquid cooling pipelines at intervals along a first direction, and defining the projection relationship between the first and second liquid cooling pipelines in the first direction, the spatial compactness of the first and second liquid cooling pipelines can be improved, reducing the space occupied by the temperature control system and thus minimizing the impact on the arrangement of the battery pack and energy storage converter, thereby ensuring overall energy density.

[0011] Optionally, in some embodiments of this application, on a projection plane perpendicular to the second direction, the projection of the first liquid cooling pipe and the projection of the second liquid cooling pipe at least partially coincide; the second direction intersects the first direction.

[0012] By adopting the above scheme, by limiting the projection plane to a direction perpendicular to the second direction, the projection of the first liquid cooling pipe and the projection of the second liquid cooling pipe at least partially overlap, so that the first liquid cooling pipe and the second liquid cooling pipe can be concentrated in the vicinity of the directional plane formed by the first direction and the second direction, further improving the compactness of the first liquid cooling pipe and the second liquid cooling pipe in spatial arrangement.

[0013] Optionally, in some embodiments of this application, the first liquid cooling pipeline includes:

[0014] The first liquid inlet main line is connected to the liquid chiller;

[0015] At least two diversion components are respectively connected to the first liquid inlet main line;

[0016] The first main liquid circuit is connected to the liquid chiller;

[0017] At least two manifold components are connected to the first return main circuit, respectively;

[0018] Wherein, at least two of the current splitting components are spaced apart along the second direction, and at least two of the current combining components are spaced apart along the second direction; and adjacent current splitting components and current combining components in the second direction are spaced apart to accommodate at least two battery packs arranged in the first direction;

[0019] The second direction is set to intersect with the first direction.

[0020] By adopting the above scheme, the circulation of heat exchange working fluid in multiple battery packs can be realized through the cooperation of the first liquid inlet main line, the diversion component, the first liquid return main line and the confluence component.

[0021] Optionally, in some embodiments of this application, in the first direction, at least a portion of the diversion component is located between at least a portion of the second liquid cooling pipeline and the first liquid inlet main pipeline;

[0022] And / or,

[0023] In the first direction, at least a portion of the manifold is located between at least a portion of the second liquid cooling line and the first return main line.

[0024] By adopting the above scheme, by limiting at least a portion of the diversion component to be located between at least a portion of the second liquid cooling pipeline and the first liquid inlet main pipeline, the diversion component can be prevented from exceeding the space range defined by the first liquid inlet main pipeline and the second liquid cooling pipeline, thereby further improving the compactness of the first liquid cooling pipeline.

[0025] By limiting at least a portion of the manifold assembly to be located between at least a portion of the second liquid cooling pipeline and the first liquid inlet main pipeline, the manifold assembly can be prevented from exceeding the space range defined by the first liquid return main pipeline and the second liquid cooling pipeline, thereby further improving the compactness of the first liquid cooling pipeline.

[0026] Optionally, in some embodiments of this application, the splitting component includes:

[0027] The liquid inlet branch is connected to the first liquid inlet main line;

[0028] At least two first inlet pipes are spaced apart along the first direction;

[0029] The bus component includes:

[0030] The liquid outlet branch is connected to the first liquid return main branch;

[0031] At least two first outlet pipes are spaced apart along the first direction;

[0032] In the first direction, the positions of the first liquid inlet pipe and the first liquid outlet pipe are correspondingly arranged so that the corresponding first liquid inlet pipe and the first liquid outlet pipe can be connected to the same battery pack.

[0033] By adopting the above scheme, the length of the first liquid inlet pipe and the first liquid outlet pipe connected to the battery pack can be reduced by combining the liquid inlet branch with the first liquid inlet pipe and cooperating with the liquid outlet branch. This avoids the redundancy of the pipeline caused by directly connecting the first liquid inlet pipe and the first liquid return pipe to the first main liquid inlet pipe and the first main liquid return pipe, which is conducive to simplifying the structure of the diversion component and the junction component. Furthermore, based on the setting of the liquid inlet branch and the liquid outlet branch, the first liquid inlet pipe and the first liquid outlet pipe can be used to adapt to the spatial position of the battery pack, thereby improving the flexibility of the first liquid cooling pipeline.

[0034] Optionally, in some embodiments of this application, on a projection plane perpendicular to a third direction, the projection of the first inlet main path and the projection of the first return main path at least partially overlap.

[0035] And / or,

[0036] On a projection plane perpendicular to a third direction, the projection of at least one of the liquid inlet branches and the projection of at least one of the liquid outlet branches at least partially overlap.

[0037] The third direction intersects with the first direction and the second direction, respectively.

[0038] By adopting the above scheme, by limiting the projection relationship between the first liquid inlet main line and the first liquid return main line on the projection plane perpendicular to the third direction, the space occupied by the first liquid inlet main line and the first liquid return main line in the first direction can be reduced, thereby improving the compactness of the first liquid cooling pipeline.

[0039] By defining the projection relationship between the inlet and outlet branches on a projection plane perpendicular to the third direction, the spacing between adjacent inlet branches in the second direction and the spacing between adjacent outlet branches in the second direction can be reduced, thereby reducing the overall size of the first liquid cooling pipeline in the second direction.

[0040] Optionally, in some embodiments of this application, the splitter component further includes:

[0041] The first switching valve is connected to the liquid inlet branch;

[0042] The first drain valve is connected to the inlet branch at a position different from the first switch valve;

[0043] The first drain valve and the first switch valve are both located on the side of the first inlet pipe close to the first main inlet line, and the first drain valve is disposed between the first switch valve and the first inlet pipe.

[0044] By adopting the above scheme, the flow rate of the inlet branch can be adjusted through the setting of the first switching valve, thereby adjusting the circulation flow rate of the heat exchange medium in the battery pack. By setting the first drain valve, during battery pack maintenance, the heat exchange medium in the first inlet pipe, inlet branch, and battery pack can be drained in advance through the first drain valve, preventing leakage of the heat exchange medium when the battery pack is disconnected from the first inlet pipe.

[0045] Optionally, in some embodiments of this application, the bus component further includes:

[0046] The second switching valve is connected to the liquid outlet branch;

[0047] The second drain valve is connected to the outlet branch at a position different from the second switch valve;

[0048] The second drain valve and the second switch valve are located on the side of the first outlet pipe near the first return main line, and the second drain valve is disposed between the second switch valve and the first outlet pipe.

[0049] By adopting the above scheme, the flow rate of the outlet branch can be adjusted through the setting of the second switching valve, thereby adjusting the circulation flow rate of the heat exchange medium in the battery pack. With the setting of the second drain valve, during battery pack maintenance, the heat exchange medium in the first outlet pipe and outlet branch can be drained in advance through the second drain valve, preventing leakage of the heat exchange medium when the battery pack is disconnected from the first outlet pipe.

[0050] Optionally, in some embodiments of this application, the first liquid cooling pipeline further includes:

[0051] The first connector includes a first mating portion and a second mating portion;

[0052] The first connector has a coupled state and a disengaged state. When the first connector is in the coupled state, the first coupled part and the second coupled part are kept open to allow the heat exchange medium to pass through. When the first connector is in the disengaged state, both the first coupled part and the second coupled part are kept closed to block the heat exchange medium.

[0053] At least one of the first inlet pipe and the first outlet pipe is connected to the first coupling portion and / or the second coupling portion of the first connector.

[0054] By adopting the above solution, the on / off control of the first liquid inlet pipe and the first liquid outlet pipe is achieved through the connection or separation of the first joint and the second joint. Thus, when disassembling the battery pack, the first connectors on the corresponding first liquid inlet and first liquid outlet pipes can be directly disconnected without prior discharge of the heat exchange medium. This facilitates battery pack disassembly while preventing heat exchange medium leakage.

[0055] Optionally, in some embodiments of this application, the first liquid cooling pipeline further includes: a first exhaust valve;

[0056] The first liquid inlet main line is connected to the first exhaust valve at the end furthest from the liquid cooler, and the first liquid return main line is connected to the first exhaust valve at the end furthest from the liquid cooler.

[0057] And / or,

[0058] The first liquid cooling pipeline also includes: a second vent valve;

[0059] The inlet branch is connected to the second exhaust valve at the end furthest from the first inlet main line, and the outlet branch is connected to the second exhaust valve at the end furthest from the first return main line.

[0060] By adopting the above scheme, the gas in the first liquid inlet main line and the first liquid return main line can be discharged through the setting of the first exhaust valve, thereby improving the continuity and stability of the heat exchange working fluid in the first liquid inlet main line and the first liquid return main line.

[0061] By installing a second exhaust valve, gas in the liquid inlet and liquid outlet branches can be discharged, improving the continuity and stability of the heat exchange medium in the liquid inlet and liquid injection branches.

[0062] Optionally, in some embodiments of this application, the second liquid cooling pipeline includes:

[0063] The second liquid inlet main line is connected to the liquid chiller;

[0064] At least two first connection components are respectively connected to the second liquid inlet main;

[0065] The second main liquid circuit is connected to the liquid chiller;

[0066] At least two second connection components are respectively connected to the second return fluid main circuit;

[0067] Wherein, at least two of the first connecting components are spaced apart along the second direction, and at least two of the second connecting components are spaced apart along the second direction; at least one of the first connecting components and at least one of the second connecting components are connected to the same energy storage converter;

[0068] The second direction is set to intersect with the first direction.

[0069] By adopting the above scheme, through the cooperation of the second liquid inlet main line, the first connecting component, the second liquid return main line and the second connecting component, the circulation of heat exchange working fluid in multiple energy storage converters can be realized.

[0070] Optionally, in some embodiments of this application, on a projection plane perpendicular to a third direction, the projection of the second inlet main path and the projection of the second return main path at least partially overlap;

[0071] The third direction intersects with the first direction and the second direction, respectively.

[0072] By adopting the above scheme, by limiting the projection relationship between the second liquid inlet main line and the second liquid return main line on the projection plane perpendicular to the third direction, the space occupied by the second liquid inlet main line and the second liquid return main line in the first direction can be reduced, thereby improving the compactness of the second liquid cooling pipeline.

[0073] Optionally, in some embodiments of this application, the second liquid inlet main path includes:

[0074] The branch section is connected to at least two of the first connection components;

[0075] A liquid supply section is connected between the diversion section and the liquid chiller;

[0076] At least a portion of the diversion section extends along a second direction, and at least a portion of the liquid supply section extends along a first direction.

[0077] The second return main circuit includes:

[0078] The busbar is connected to at least two of the second connection components;

[0079] The return liquid section is connected between the manifold and the liquid chiller;

[0080] At least a portion of the manifold extends along a second direction, and at least a portion of the return section extends along a first direction.

[0081] On a projection plane perpendicular to the third direction, the projection of the diversion section and the projection of the confluence section at least partially coincide, and the projection of the liquid supply section and the projection of the liquid return section at least partially coincide.

[0082] By adopting the above scheme, through the combination of the supply section and the branch section, and the combination of the junction section and the return section, the first and second liquid cooling pipelines can be spatially compact while achieving liquid supply from the same liquid chiller. Furthermore, due to the arrangement of the supply section and the return section in the first direction, the first and second main inlet pipelines can be connected to the same outlet of the liquid chiller, and the first and second main return pipelines can be connected to the same inlet of the liquid chiller.

[0083] Meanwhile, by defining the projection relationship between the branch section and the junction section, as well as the projection relationship between the liquid supply section and the liquid return section, the overall space occupied by the second liquid inlet main line and the second liquid return main line is further reduced, thereby improving the compactness of the second liquid cooling pipeline.

[0084] Optionally, in some embodiments of this application, the first connection component includes:

[0085] At least two second inlet pipes are spaced apart along the second direction;

[0086] The second connection component includes:

[0087] At least two second outlet pipes are provided at intervals along the second direction;

[0088] The second inlet pipe is connected to the branch section, and the second outlet pipe is connected to the confluence section; at least one second inlet pipe and at least one second outlet pipe are connected to the same energy storage converter.

[0089] By adopting the above scheme, and by setting at least two second liquid inlet pipes and at least two second liquid outlet pipes, the second liquid inlet main line and the second liquid outlet main line can supply liquid to multiple energy storage converters. Furthermore, with the second liquid inlet main line and the second liquid return main line spaced apart in the first direction, the second liquid inlet pipes and the second liquid outlet pipes can be used to adapt to the spatial position of the energy storage converters, improving the flexibility of the second liquid cooling pipeline.

[0090] Optionally, in some embodiments of this application, the second liquid cooling pipeline further includes:

[0091] The third drain valve is connected to the liquid supply section;

[0092] The fourth drain valve is connected to the return section;

[0093] Specifically, on the projection plane perpendicular to the second direction, the projection of the third drain valve is located on the side of the projection of the second inlet pipe that is close to the projection of the first liquid cooling pipe, and the projection of the fourth drain valve is located on the side of the projection of the second outlet pipe that is close to the projection of the first liquid cooling pipe.

[0094] By adopting the above scheme, the heat exchange medium in the second inlet pipe, the branch section, the second outlet pipe and the junction section can be discharged in advance through the third and fourth drain valves when the energy storage converter is maintained, thus avoiding leakage of the heat exchange medium when the energy storage converter is disconnected from the second inlet pipe and the second outlet pipe.

[0095] Optionally, in some embodiments of this application, the second liquid cooling pipeline includes:

[0096] The second connector includes a first connecting part and a second connecting part;

[0097] The second connector has an engaged state and a disengaged state. When the second connector is engaged, the first connecting part and the second connecting part remain open to allow the heat exchange medium to pass through. When the second connector is disengaged, both the first connecting part and the second connecting part remain closed to block the heat exchange medium.

[0098] At least one of the second inlet pipe and the second outlet pipe is connected to the first connection portion and / or the second connection portion of the second connector.

[0099] By adopting the above solution, the on / off control of the second inlet pipe and the second outlet pipe is achieved through the connection or separation of the first and second connecting parts. Thus, when disassembling the energy storage converter, the second connectors on the corresponding second inlet and outlet pipes can be directly disconnected without prior discharge of the heat exchange medium. This facilitates the disassembly of the energy storage converter while preventing heat exchange medium leakage.

[0100] Optionally, in some embodiments of this application, the second liquid cooling pipeline includes: a third exhaust valve;

[0101] The third vent valve is connected to the end of the diversion section away from the liquid supply section, and the third vent valve is also connected to the end of the confluence section away from the liquid return section.

[0102] By adopting the above scheme and setting the third exhaust valve, the gas in the second liquid inlet main line and the second liquid return main line can be discharged, thereby improving the continuity and stability of the heat exchange working fluid in the second liquid inlet main line and the second liquid return main line.

[0103] Secondly, embodiments of this application provide an energy storage container, including a container body, a battery pack, an energy storage converter, and a temperature control system as described above;

[0104] The battery pack, the energy storage converter, and the temperature control system are respectively installed in the enclosure. Attached Figure Description

[0105] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0106] Figure 1 This is a schematic diagram of the heat exchange principle of the energy storage container provided in the embodiments of this application;

[0107] Figure 2 This is a three-dimensional schematic diagram of the temperature control system provided in an embodiment of this application;

[0108] Figure 3 This is a front view of the temperature control system provided in an embodiment of this application;

[0109] Figure 4 This is a three-dimensional schematic diagram of the first liquid cooling pipeline in the temperature control system provided in an embodiment of this application;

[0110] Figure 5 yes Figure 4 Enlarged view of section A;

[0111] Figure 6 This is a schematic diagram of another part of the first liquid cooling pipeline in the temperature control system provided in the embodiments of this application;

[0112] Figure 7 This is a three-dimensional schematic diagram of the first liquid cooling pipeline in the temperature control system provided in the embodiments of this application from another perspective;

[0113] Figure 8 yes Figure 7 Enlarged view of section B;

[0114] Figure 9 yes Figure 7 Enlarged view of section C;

[0115] Figure 10 This is a three-dimensional schematic diagram of the second liquid cooling pipeline in the temperature control system provided in the embodiments of this application;

[0116] Figure 11 yes Figure 10 Enlarged view of section D;

[0117] Figure 12 This is a schematic diagram of a portion of a second liquid cooling pipeline in a temperature control system provided in an embodiment of this application;

[0118] Figure 13 This is a three-dimensional schematic diagram of the second liquid cooling pipeline in the temperature control system provided in the embodiments of this application from another perspective;

[0119] Figure 14 yes Figure 13 Enlarged view of section E in the middle;

[0120] Figure 15 This is a three-dimensional schematic diagram of a portion of the second liquid cooling pipeline in the temperature control system provided in an embodiment of this application.

[0121] Explanation of reference numerals in the attached figures:

[0122] 100. Temperature control system;

[0123] 100a, First liquid cooling pipeline;

[0124] 111. First main inlet line; M1. Diverter assembly; 112. Inlet branch line; 113. First inlet pipe; 114. First switching valve; 115. First drain valve;

[0125] 121. First return main line; M2. Manifold assembly; 122. Outlet branch line; 123. First outlet pipe; 124. Second switching valve; 125. Second drain valve;

[0126] 130. First connector; 131. First mating part; 132. Second mating part;

[0127] 141. First exhaust valve; 142. Second exhaust valve;

[0128] 100b, Second liquid cooling pipeline;

[0129] 151. Second main inlet channel; 151a. Supply section; 151b. Diversion section; 151c. First mounting position; N1. First connecting assembly; 152. Second inlet pipe;

[0130] 161. Second main return line; 161a. Return section; 161b. Manifold section; 161c. Second mounting position; N2. Second connecting assembly; 162. Second outlet pipe;

[0131] 171. Quick-connect fitting; 172. Third drain valve; 173. Fourth drain valve; 174. Sealing component; 175. Third vent valve;

[0132] 180. Second connector; 181. First connecting part; 182. Second connecting part;

[0133] 190. Liquid chiller; 191. Liquid inlet; 192. Liquid outlet;

[0134] 10. Energy storage containers;

[0135] 210. Battery pack; 211. Battery module; 220. Energy storage converter. Detailed Implementation

[0136] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application.

[0137] In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in its actual use or operating state, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative purposes and do not impose numerical requirements or establish a numerical order.

[0138] In this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural.

[0139] Firstly, referring to Figure 1 and Figure 2 This application provides a temperature control system 100, including: a first liquid cooling pipe 100a, a second liquid cooling pipe 100b, and a liquid chiller 190.

[0140] The first liquid cooling pipeline 100a is configured to deliver a heat exchange medium to the battery pack 211 for heat exchange with the battery pack 211; the second liquid cooling pipeline 100b is configured to deliver a heat exchange medium to the energy storage converter 220 for heat exchange with the energy storage converter 220.

[0141] The liquid chiller 190 is configured to provide heat exchange medium to the first liquid cooling pipeline 100a and the second liquid cooling pipeline 100b respectively. That is, the first liquid cooling pipeline 100a and the second liquid cooling pipeline 100b are uniformly provided with pressure drop and liquid supply by the liquid chiller 190.

[0142] The first liquid cooling pipe 100a and the second liquid cooling pipe 100b are respectively connected to the liquid chiller 190. At least a portion of the first liquid cooling pipe 100a and at least a portion of the second liquid cooling pipe 100b are spaced apart along a first direction, and on a projection plane perpendicular to the first direction, the projection of the first liquid cooling pipe 100a and the projection of the second liquid cooling pipe 100b at least partially coincide.

[0143] It is understood that by limiting the projection of the first liquid cooling pipe 100a to at least partially overlap with the projection of the second liquid cooling pipe 100b, the second liquid cooling pipe 100b is concentrated in the position of the first liquid cooling pipe 100a in the direction intersecting with the first direction, thereby reducing the overall size of the first liquid cooling pipe 100a and the second liquid cooling pipe 100b in the direction intersecting with the first direction, which can improve the interference between the liquid cooling pipes and the installation positions of the battery pack 211 and the energy storage converter 220.

[0144] By adopting the above scheme, the same liquid cooler 190 provides heat exchange medium for the first liquid cooling pipe 100a and the second liquid cooling pipe 100b simultaneously, which can realize unified thermal management of the battery pack 211 and the energy storage converter 220 and simplify the piping structure of the temperature control system 100. On this basis, by arranging at least a portion of the first liquid cooling pipe 100a and at least a portion of the second liquid cooling pipe 100b at intervals along the first direction and defining the projection relationship between the first liquid cooling pipe 100a and the second liquid cooling pipe 100b in the first direction, the compactness of the spatial arrangement of the first liquid cooling pipe 100a and the second liquid cooling pipe 100b can be improved, the space occupied by the temperature control system 100 can be reduced, and the impact on the arrangement of the battery pack 211 and the energy storage converter 220 can be reduced, thereby ensuring the overall energy density.

[0145] It should be noted that the first direction, indicating the up and down direction, is only for the convenience of introducing specific embodiments of this application. There is no absolute correspondence between the first direction and the up and down direction. Similarly, there is no absolute correspondence between the second direction and the left and right direction, and between the third direction and the front and back direction. Furthermore, the first direction, second direction, and third direction of this application are only used to express relative positional relationships; they only indicate approximate locations, not absolute geometric relationships.

[0146] In some specific implementation methods, refer to Figure 2 The first liquid cooling pipe 100a is located below the second liquid cooling pipe 100b, and correspondingly, the battery pack 211 and the energy storage converter 220 can be arranged in the vertical direction.

[0147] In some embodiments of this application, reference is made to Figure 2 and Figure 3 On a projection plane perpendicular to the second direction, the projection of the first liquid cooling pipe 100a and the projection of the second liquid cooling pipe 100b at least partially coincide; the second direction intersects the first direction. More specifically, the second direction intersects the first direction at an angle or is perpendicular to it.

[0148] By adopting the above scheme, by limiting the projection plane to a direction perpendicular to the second direction, the projection of the first liquid cooling pipe 100a and the projection of the second liquid cooling pipe 100b at least partially overlap, so that the first liquid cooling pipe 100a and the second liquid cooling pipe 100b can be concentrated in the vicinity of the directional plane formed by the first direction and the second direction, further improving the compactness of the spatial arrangement of the first liquid cooling pipe 100a and the second liquid cooling pipe 100b.

[0149] In some embodiments of this application, reference is made to Figures 2 to 4 The first liquid cooling pipeline 100a includes: a first liquid inlet main pipeline 111, a flow distribution component M1, a first liquid return main pipeline 121, and a flow combination component M2.

[0150] The first liquid inlet main line 111 is connected to the liquid chiller 190, and at least two flow splitting components M1 are respectively connected to the first liquid inlet main line 111; the first liquid return main line 121 is connected to the liquid chiller 190, and at least two flow combining components M2 are respectively connected to the first liquid return main line 121.

[0151] The first liquid inlet main channel 111 extends along the second direction, and at least two diversion components M1 are spaced apart along the second direction; the first liquid return main channel 121 extends along the second direction, and at least two confluence components M2 are spaced apart along the second direction; and adjacent diversion components M1 and confluence components M2 in the second direction are spaced apart to accommodate at least two battery packs 211 arranged in the first direction; the second direction intersects with the first direction.

[0152] It is understood that at least two battery packs 211 connected to the same diversion component M1 and confluence component M2 can be defined as battery groups 210; at least two diversion components M1 are spaced apart along the second direction, which can divert the heat exchange medium in the first liquid inlet main line 111 and transport it to the battery groups 210 arranged at different positions in the second direction; while at least two confluence components M2 are spaced apart along the second direction, which can merge the heat exchange medium in the battery groups 210 arranged at different positions in the second direction to the first liquid return main line 121.

[0153] By adopting the above scheme, through the cooperation of the first liquid inlet main line 111, the diversion component M1, the first liquid return main line 121 and the confluence component M2, the circulation of heat exchange working fluid in multiple battery packs 210 can be realized.

[0154] In some specific implementations, the second direction is inclined to intersect the first direction or is perpendicular to it.

[0155] In some embodiments of this application, reference is made to Figures 2 to 4 In the first direction, at least a portion of the diversion component M1 is located between at least a portion of the second liquid cooling line 100b and the first liquid inlet main line 111.

[0156] It is understood that the shunt assembly M1 is arranged along the first direction (vertical direction) to connect the battery pack 211 located at different positions in the vertical direction. Accordingly, in the first direction, the battery pack 211 can be arranged between the first liquid inlet main 111 and the second liquid cooling pipe.

[0157] By adopting the above solution, by limiting at least a portion of the diversion component M1 to be located between at least a portion of the second liquid cooling pipeline 100b and the first liquid inlet main pipeline 111, the diversion component M1 can be prevented from exceeding the space range defined by the first liquid inlet main pipeline 111 and the second liquid cooling pipeline 100b, thereby further improving the compactness of the first liquid cooling pipeline 100a.

[0158] In some embodiments of this application, reference is made to Figures 2 to 4 In the first direction, at least a portion of the manifold assembly M2 is located between at least a portion of the second liquid cooling line 100b and the first return main line 121.

[0159] It is understood that the busbar assembly M2 is arranged along the first direction (vertical direction) to connect the battery pack 211 located at different positions in the vertical direction. Accordingly, in the first direction, the battery pack 211 can be arranged between the first return main line 121 and the second liquid cooling pipe.

[0160] By adopting the above solution, by limiting at least a portion of the manifold M2 to be located between at least a portion of the second liquid cooling pipeline 100b and the first liquid inlet main pipeline 111, the manifold M2 can be prevented from exceeding the space range defined by the first liquid return main pipeline 121 and the second liquid cooling pipeline 100b, thereby further improving the compactness of the first liquid cooling pipeline 100a.

[0161] In some embodiments of this application, reference is made to Figure 4 The diversion assembly M1 includes: an inlet branch 112 and a first inlet pipe 113. The inlet branch 112 is connected to the first main inlet 111; at least two first inlet pipes 113 are spaced apart along a first direction.

[0162] The manifold assembly M2 includes: a liquid outlet branch 122 and a first liquid outlet pipe 123. The liquid outlet branch 122 is connected to the first return main line 121; at least two first liquid outlet pipes 123 are spaced apart along a first direction.

[0163] In the first direction, the positions of the first liquid inlet pipe 113 and the first liquid outlet pipe 123 are correspondingly arranged so that the correspondingly arranged first liquid inlet pipe 113 and first liquid outlet pipe 123 can be connected to the same battery pack 211.

[0164] It is understood that the liquid inlet branch 112 and the liquid outlet branch 122 are arranged along the first direction, and the first liquid inlet pipe 113 connects the liquid inlet branch 112 and the battery pack 211, and the first liquid outlet pipe 123 connects the liquid outlet branch 122 and the battery pack 211. The number of first liquid inlet pipes 113 is greater than the number of liquid inlet branches 112, and the number of first liquid outlet pipes 123 is greater than the number of liquid outlet branches 122.

[0165] By adopting the above scheme, through the combination of the liquid inlet branch 112 and the first liquid inlet pipe 113, and the cooperation of the liquid outlet branch 122 and the first liquid outlet pipe 123, the length of the first liquid inlet pipe 113 and the first liquid outlet pipe 123 connected to the battery pack 211 can be reduced. This avoids the redundancy of the pipeline caused by the direct connection of these first liquid inlet pipes 113 and the first liquid return main line 111 and the first liquid return main line 121, which is beneficial to simplify the structure of the diversion component M1 and the junction component M2. Furthermore, based on the liquid inlet branch 112 and the liquid outlet branch 122, the first liquid inlet pipe 113 and the first liquid outlet pipe 123 are used to adapt to the spatial position of the battery pack 211, thereby improving the flexibility of the first liquid cooling pipeline 100a.

[0166] In some specific implementation methods, refer to Figure 4 The liquid inlet branch 112 and the liquid outlet branch 122 are parallel to each other, and the first liquid inlet pipe 113 and the first liquid outlet pipe 123, which are connected to the same battery pack 211, are at the same height. More specifically, the first liquid inlet pipe 113 and the first liquid outlet pipe 123 can be made of flexible tubing, which can reduce the positioning accuracy requirements of the battery pack 211.

[0167] In some specific embodiments, the diameter of the inlet branch 112 is smaller than the diameter of the first inlet main line 111, and the diameter of the outlet branch 122 is smaller than the diameter of the first return main line 121.

[0168] In other embodiments of this application, when the number of battery packs 211 connected to the same shunt assembly M1 and busbar assembly M2 is small, the shunt assembly M1 can be directly connected to the first main inlet channel 111 via the first inlet pipe 113; correspondingly, the busbar assembly M2 can be directly connected to the first main return channel 121 via the first outlet pipe 123. The structural schemes of the shunt assembly M1 and busbar assembly M2 can be specifically selected according to the number of battery packs 211 in the battery pack 210.

[0169] In some embodiments of this application, reference is made to Figures 2 to 4 On the projection plane perpendicular to the third direction, the projection of the first liquid inlet main line 111 and the projection of the first liquid return main line 121 at least partially overlap.

[0170] It is understandable that, in the vertical direction, the first liquid inlet main line 111 and the first liquid return main line 121 are located at approximately the same height.

[0171] By adopting the above scheme, by limiting the projection relationship of the first liquid inlet main line 111 and the first liquid return main line 121 on the projection plane perpendicular to the third direction, the space occupied by the first liquid inlet main line 111 and the first liquid return main line 121 in the first direction can be reduced, thereby improving the compactness of the first liquid cooling pipeline 100a.

[0172] In some embodiments of this application, reference is made to Figure 3 and Figure 4 On a projection plane perpendicular to the third direction, the projection of at least one inlet branch 112 at least partially coincides with the projection of at least one outlet branch 122; the third direction intersects the first direction and the second direction respectively. More specifically, the third direction intersects the first direction and the second direction at an angle or is perpendicular to each other.

[0173] It is understood that, in the left-right direction, at least one liquid inlet branch 112 and at least one liquid outlet branch 122 are located at the same approximately the same position. In other words, the liquid inlet branch 112 and the liquid outlet branch 122 whose projections on the projection plane perpendicular to the third direction at least partially overlap can be spaced apart in the third direction. The liquid inlet branch 112 and the liquid outlet branch 122 that satisfy the above projection relationship are connected to different battery packs 210.

[0174] By adopting the above scheme, by limiting the projection relationship of the liquid inlet branch 112 and the liquid outlet branch 122 on the projection plane perpendicular to the third direction, the spacing between adjacent liquid inlet branches 112 in the second direction and the spacing between adjacent liquid outlet branches 122 in the second direction can be reduced, thereby reducing the overall size of the first liquid cooling pipeline 100a in the second direction.

[0175] It should be noted that, in this embodiment of the application, a number of similar liquid inlet branches 112 and liquid outlet branches 122 may be staggered in the second direction to adapt to different battery pack 211 design requirements.

[0176] In some embodiments of this application, reference is made to Figure 1 , Figure 4 and Figure 5 The diversion assembly M1 further includes a first switching valve 114 and a first drain valve 115. The first switching valve 114 is connected to the inlet branch 112 and can regulate the flow rate of the inlet branch 112. The first drain valve 115 is connected to the inlet branch 112 at a position different from the first switching valve 114 and is configured to discharge the heat exchange medium in the inlet branch 112. Both the first drain valve 115 and the first switching valve 114 are located on the side of the first inlet pipe 113 near the first main inlet pipe 111, and the first drain valve 115 is disposed between the first switching valve 114 and the first inlet pipe 113.

[0177] It is understandable that the height of the first inlet pipe 113 is greater than the height of the first switch valve 114 and the first drain valve 115.

[0178] By adopting the above scheme, the flow rate of the liquid inlet branch 112 can be adjusted by setting the first switching valve 114, thereby adjusting the circulation flow rate of the heat exchange medium in the battery pack 211. By setting the first drain valve 115, when maintaining the battery pack 211, the heat exchange medium in the first liquid inlet pipe 113, the liquid inlet branch 112, and the battery pack can be discharged in advance through the first drain valve 115, avoiding leakage of the heat exchange medium when the battery pack 211 is disconnected from the first liquid inlet pipe 113.

[0179] In addition, by setting the first drain valve 115 between the first switch valve 114 and the first inlet pipe 113, when the battery pack 211 is being maintained, the first switch valve 114 can isolate the first drain valve 115 from the first inlet main line 111, preventing the heat exchange medium in the first inlet main line 111 from being discharged from the first drain valve 115.

[0180] In some embodiments of this application, reference is made to Figure 1 , Figure 4 and Figure 5 The manifold assembly M2 also includes a second switching valve 124 and a second drain valve 125. The second switching valve 124 is connected to the outlet branch 122, and the first switching valve 114 can adjust the flow rate of the outlet branch 122. The second drain valve 125 is connected to the outlet branch 122 at a position different from the second switching valve 124, and the second drain valve 125 is configured to discharge the heat exchange medium in the outlet branch 122. The second drain valve 125 and the second switching valve 124 are located on the side of the first outlet pipe 123 near the first return main line 121, and the second drain valve 125 is disposed between the second switching valve 124 and the first outlet pipe 123.

[0181] It is understandable that the height of the first outlet pipe 123 is greater than the height of the second switch valve 124 and the second drain valve 125.

[0182] By adopting the above scheme, the flow rate of the outlet branch 122 can be adjusted through the setting of the second switching valve 124, thereby adjusting the circulation flow rate of the heat exchange medium in the battery pack 211. Through the setting of the second drain valve 125, when maintaining the battery pack 211, the heat exchange medium in the first outlet pipe 123 and outlet branch 122 can be drained in advance through the second drain valve 125, preventing leakage of the heat exchange medium when the battery pack 211 is disconnected from the first outlet pipe 123.

[0183] In addition, by setting the second drain valve 125 between the second switch valve 124 and the first outlet pipe 123, when the battery pack 211 is being maintained, the second switch valve 124 can isolate the second drain valve 125 from the first return main line 121, preventing the heat exchange medium in the first return main line 121 from being discharged from the second drain valve 125.

[0184] It should be noted that the first switching valve 114 and the first drain valve 115 can be provided only on the liquid inlet side of the battery pack 211; or the second switching valve 124 and the second drain valve 125 can be provided only on the liquid outlet side of the battery pack 211; or the first switching valve 114, the first drain valve 115, the second switching valve 124, and the second drain valve 125 can be provided simultaneously to achieve better flow regulation and drainage effects.

[0185] In some embodiments of this application, reference is made to Figure 6 The first liquid cooling pipeline 100a also includes: a first connector 130.

[0186] The first connector 130 includes a first connecting portion 131 and a second connecting portion 132; the first connector 130 has a connected state and a disconnected state. When the first connector 130 is in the connected state, the first connecting portion 131 and the second connecting portion 132 remain open to allow the heat exchange medium to pass through; when the first connector 130 is in the disconnected state, both the first connecting portion 131 and the second connecting portion 132 remain closed to block the heat exchange medium; at least one of the first liquid inlet pipe 113 and the first liquid outlet pipe 123 connects to the first connecting portion 131 and / or the second connecting portion 132 of the first connector 130.

[0187] It is understood that the first connecting portion 131 and the second connecting portion 132 of the same first connector 130 are configured to be detachably connected. When the first connector 130 is in the connected state, the first connecting portion 131 and the second connecting portion 132 are connected and communicate with each other. At this time, the first connector 130 allows the heat exchange medium to pass through, and the first liquid inlet pipe 113 and the first liquid outlet pipe 123 connected to the first connector 130 can transfer the heat exchange medium with the battery pack 211. When the first connector 130 is in the disconnected state, the first connecting portion 131 and the second connecting portion 132 are separated from each other. At this time, neither the first connecting portion 131 nor the second connecting portion 132 allows the heat exchange medium to pass through, and the first connecting portion 131 and the second connecting portion 132 achieve the sealing of the first liquid inlet pipe 113, the first liquid outlet pipe 123, etc. connected to them.

[0188] By adopting the above solution, the on / off control of the first liquid inlet pipe 113 and the first liquid outlet pipe 123 is controlled by connecting or separating the first joint 131 and the second joint 132. Thus, when disassembling the battery pack 211, the first connector 130 on the first liquid inlet pipe 113 and the first liquid outlet pipe 123 corresponding to the battery pack 211 can be directly disconnected without pre-draining the heat exchange medium. This facilitates the disassembly of the battery pack 211 while preventing leakage of the heat exchange medium.

[0189] In some specific implementations, the first connector 130 is a bidirectional shut-off valve.

[0190] In one example of this application, reference is made to Figure 6 The first coupling portion 131 and the second coupling portion 132 of the first connector 130 are both connected to the same first inlet pipe 113 or first outlet pipe 123. In this example, when the battery pack 211 is being maintained, the first inlet pipe 113 and the first outlet pipe 123 can be disconnected at the location of the first connector 130.

[0191] In another example of this application, the first connecting portion 131 of the first connector 130 is directly connected to the battery pack 211 to serve as the liquid inlet connector of the battery pack 211, while the second connecting portion 132 is connected to the first liquid inlet pipe 113 or the first liquid outlet pipe 123. In this example, when the battery pack 211 is being maintained, the entire first liquid inlet pipe 113 and the entire first liquid outlet pipe 123 can be disconnected from the battery pack 211.

[0192] In another example of this application, the first connecting portion 131 of the first connector 130 is directly connected to the liquid inlet branch 112 or the liquid outlet branch 122, while the second connecting portion 132 is connected to the first liquid inlet pipe 113 or the first liquid outlet pipe 123. In this example, when the battery pack 211 is being maintained, the entire first liquid inlet pipe 113 can be disconnected from the liquid inlet branch 112, and the entire first liquid outlet pipe 123 can be disconnected from the liquid outlet branch 122.

[0193] It should be noted that the diversion component M1 may only have the first drain valve 115 or the first connector 130, or it may have both the first drain valve 115 and the first connector 130; similarly, the manifold component M2 may only have the second drain valve 125 or the first connector 130, or it may have both the second drain valve 125 and the first connector 130.

[0194] In some embodiments of this application, reference is made to Figure 1 , Figure 7 and Figure 8 The first liquid cooling pipeline 100a also includes a first vent valve 141. The first vent valve 141 is connected to the end of the first liquid inlet main pipeline 111 away from the liquid cooler 190, and the first vent valve 141 is connected to the end of the first liquid return main pipeline 121 away from the liquid cooler 190.

[0195] By adopting the above scheme, the gas in the first liquid inlet main line 111 and the first liquid return main line 121 can be discharged through the setting of the first exhaust valve 141, thereby improving the continuity and stability of the heat exchange medium in the first liquid inlet main line 111 and the first liquid return main line 121.

[0196] In some embodiments of this application, reference is made to Figure 1 , Figure 7 and Figure 9The first liquid cooling pipeline 100a also includes a second vent valve 142. The end of the liquid inlet branch 112 away from the first liquid inlet main line 111 is connected to the second vent valve 142, and the end of the liquid outlet branch 122 away from the first liquid return main line 121 is connected to the second vent valve 142.

[0197] It is understood that the second exhaust valve 142 connected to the liquid inlet branch 112 is located at the highest point of the liquid inlet branch 112, and the second exhaust valve 142 connected to the liquid outlet branch 122 is located at the highest point of the liquid outlet branch 122.

[0198] By adopting the above scheme, the gas in the liquid inlet branch 112 and the liquid outlet branch 122 can be discharged through the setting of the second exhaust valve 142, thereby improving the continuity and stability of the heat exchange medium in the liquid inlet branch 112 and the liquid injection branch.

[0199] In some embodiments of this application, reference is made to Figures 1 to 3 The second liquid cooling pipeline 100b includes: a second liquid inlet main pipeline 151, a first connecting component N1, a second liquid return main pipeline 161, and a second connecting component N2.

[0200] The second liquid inlet main line 151 is connected to the liquid chiller 190; at least two first connecting components N1 are respectively connected to the second liquid inlet main line 151; the second liquid return main line 161 is connected to the liquid chiller 190; at least two second connecting components N2 are respectively connected to the second liquid return main line 161.

[0201] The second liquid inlet main line 151 extends along the second direction, and at least two first connecting components N1 are spaced apart along the second direction; the second liquid return main line 161 extends along the second direction, and at least two second connecting components N2 are spaced apart along the second direction; at least one first connecting component N1 and at least one second connecting component N2 are connected to the same energy storage converter 220; the second direction intersects with the first direction.

[0202] It is understood that at least two first connecting components N1 are spaced apart along the second direction, which can divert the heat exchange medium in the second inlet main line 151 and transport it to the energy storage converters 220 arranged at different positions along the second direction. At least two second connecting components N2 are spaced apart along the second direction, which can merge the heat exchange medium in the energy storage converters 220 arranged at different positions along the second direction to the second return main line 161.

[0203] By adopting the above scheme, through the cooperation of the second liquid inlet main line 151, the first connecting component N1, the second liquid return main line 161 and the second connecting component N2, the circulation of heat exchange working fluid in multiple energy storage converters 220 can be realized.

[0204] In some embodiments of this application, reference is made to Figure 2 , Figure 3 and Figure 10 On a projection plane perpendicular to the third direction, the projection of the second liquid inlet main line 151 and the projection of the second liquid return main line 161 at least partially overlap.

[0205] It is understandable that, in the vertical direction, the second liquid inlet main line 151 and the second liquid return main line 161 are located at approximately the same height.

[0206] By adopting the above scheme, by limiting the projection relationship of the second liquid inlet main line 151 and the second liquid return main line 161 on the projection plane perpendicular to the third direction, the space occupied by the second liquid inlet main line 151 and the second liquid return main line 161 in the first direction can be reduced, thereby improving the compactness of the second liquid cooling pipeline 100b.

[0207] In some embodiments of this application, reference is made to Figure 10 The second liquid inlet main channel 151 includes a liquid supply section 151a and a diversion section 151b. The diversion section 151b is connected to at least two first connecting components N1; the liquid supply section 151a is connected between the diversion section 151b and the liquid cooler 190; at least a portion of the diversion section 151b extends along a second direction, and at least a portion of the liquid supply section 151a extends along a first direction.

[0208] The second return main circuit 161 includes a manifold section 161b and a return section 161a. The manifold section 161b is connected to at least two second connecting components N2; the return section 161a is connected between the manifold section 161b and the liquid cooler 190; at least a portion of the manifold section 161b extends along a second direction, and at least a portion of the return section 161a extends along a first direction.

[0209] On a projection plane perpendicular to the third direction, the projection of the diversion section 151b at least partially coincides with the projection of the confluence section 161b, and the projection of the liquid supply section 151a at least partially coincides with the projection of the liquid return section 161a.

[0210] It can be understood that the whole consisting of the diversion section 151b and the confluence section 161b is spaced apart from the whole consisting of the first liquid inlet main line 111 and the first liquid return main line 121 in the first direction, and the liquid supply section 151a is connected between the diversion section 151b and the liquid cooler 190, and the liquid return section 161a is connected between the confluence section 161b and the liquid cooler 190.

[0211] By adopting the above scheme, through the combination of the liquid supply section 151a and the diversion section 151b, and the combination of the confluence section 161b and the return section 161a, the first liquid cooling pipeline 100a and the second liquid cooling pipeline 100b can be spatially compact while simultaneously supplying liquid to the same liquid chiller 190. Furthermore, due to the arrangement of the liquid supply section 151a and the return section 161a in the first direction, the first main liquid inlet 111 and the second main liquid inlet 151 can be connected to the same outlet 192 of the liquid chiller 190, and the first main return section 121 and the second main return section 161 can be connected to the same inlet 191 of the liquid chiller 190.

[0212] Meanwhile, by defining the projection relationship between the branch section 151b and the junction section 161b, as well as the projection relationship between the liquid supply section 151a and the liquid return section 161a, the overall space occupied by the second liquid inlet main line 151 and the second liquid return main line 161 is further reduced, thereby improving the compactness of the second liquid cooling pipeline.

[0213] In some specific implementation methods, refer to Figure 2 , Figure 3 and Figure 10 On the projection plane perpendicular to the second direction, at least a portion of the projection of the inlet branch 112 is located inside the projection of the whole formed by the supply section 151a and the return section 161a; at least a portion of the projection of the outlet branch 122 is located inside the projection of the whole formed by the supply section 151a and the return section 161a.

[0214] In the first direction, at least a portion of the diversion component M1 is located between the diversion section 151b and the first inlet main line 111, and at least a portion of the confluence component M2 is located between the confluence section 161b and the first return main line 121.

[0215] In some embodiments of this application, reference is made to Figure 2 , Figure 10 and Figure 15 The first connecting component N1 includes a second inlet pipe 152. At least two second inlet pipes 152 are spaced apart along a second direction.

[0216] The second connecting assembly N2 includes a second outlet pipe 162. At least two second outlet pipes 162 are spaced apart along a second direction.

[0217] The second inlet pipe 152 is connected to the branch section 151b, and the second outlet pipe 162 is connected to the confluence section 161b; at least one second inlet pipe 152 and at least one second outlet pipe 162 are connected to the same energy storage converter 220.

[0218] By adopting the above scheme, and through the arrangement of at least two second liquid inlet pipes 152 and at least two second liquid outlet pipes 162, the second liquid inlet main line 151 and the second liquid outlet main line can supply liquid to multiple energy storage converters 220. Furthermore, with the second liquid inlet main line 151 and the second liquid outlet main line 161 spaced apart in the first direction, the second liquid inlet pipes 152 and the second liquid outlet pipes 162 can be used to adapt to the spatial position of the energy storage converters 220, improving the flexibility of the second liquid cooling pipeline 100b.

[0219] In some specific implementation methods, refer to Figure 10 and Figure 15 The second inlet pipe 152 and the second outlet pipe 162 are bent. By adjusting the degree of bending of the second inlet pipe 152 and the second outlet pipe 162, the gap between the second inlet main line 151 and the second return main line 161 in the front-to-back direction can be compensated.

[0220] In some specific implementation methods, refer to Figure 1 At least two second liquid inlet pipes 152 are configured to be connected to the same energy storage converter 220, and at least two second liquid outlet pipes 162 are configured to be connected to the same energy storage converter 220. Under the premise of liquid supply from the same liquid cooler 190, the heat exchange efficiency with the energy storage converter 220 is improved, and the different heat generation conditions of the energy storage converter 220 and the battery pack 211 are compensated.

[0221] In some embodiments of this application, reference is made to Figure 15 The second inlet pipe 152 is connected to the first inlet main line 111 via a quick-connect connector 171, and the second outlet pipe 162 is connected to the second return main line 161 via another quick-connect connector 171, thereby improving the assembly and disassembly efficiency of the second inlet pipe 152 and the second outlet pipe 162.

[0222] In some embodiments of this application, reference is made to Figures 10 to 11 The second liquid cooling pipeline 100b also includes a third drain valve 172 and a fourth drain valve 173.

[0223] The third drain valve 172 is connected to the liquid supply section 151a, and is configured to discharge the heat exchange medium from the diversion section 151b and the second inlet pipe 152, etc.; the fourth drain valve 173 is connected to the return section 161a, and is configured to discharge the heat exchange medium from the confluence section 161b and the second outlet pipe 162, etc.; on the projection plane perpendicular to the second direction, the projection of the third drain valve 172 is located on the side of the projection of the second inlet pipe 152 that is close to the projection of the first liquid cooling pipe 100a, and the projection of the fourth drain valve 173 is located on the side of the projection of the second outlet pipe 162 that is close to the projection of the first liquid cooling pipe 100a.

[0224] It is understandable that by limiting the projection relationship between the third drain valve 172 and the second inlet pipe 152 on a projection plane perpendicular to the second direction, the height of the second inlet pipe 152 is higher than that of the third drain valve 172, ensuring that a larger amount of heat exchange medium in the second inlet pipe 152 can be discharged from the third drain valve 172; similarly, by limiting the projection relationship between the fourth drain valve 173 and the second outlet pipe 162 on a projection plane perpendicular to the second direction, the height of the second outlet pipe 162 is higher than that of the fourth drain valve 173, ensuring that a larger amount of heat exchange medium in the second outlet pipe 162 can be discharged from the fourth drain valve 173.

[0225] By adopting the above scheme, through the setting of the third drain valve 172 and the fourth drain valve 173, when maintaining the energy storage converter 220, the heat exchange medium in the second inlet pipe 152, the diversion section 151b, the second outlet pipe 162 and the junction section 161b can be discharged in advance through the third drain valve 172 and the fourth drain valve 173, so as to avoid leakage of heat exchange medium when the energy storage converter 220 is disconnected from the second inlet pipe 152 and the second outlet pipe 162.

[0226] In some embodiments of this application, reference is made to Figure 12 The second liquid cooling line 100b includes: a second connector 180.

[0227] The second connector 180 includes a first connecting portion 181 and a second connecting portion 182; the second connector 180 has an engaged state and a disengaged state. When the second connector 180 is in the engaged state, the first connecting portion 181 and the second connecting portion 182 remain open to allow the heat exchange medium to pass through; when the second connector 180 is in the disengaged state, both the first connecting portion 181 and the second connecting portion 182 remain closed to block the heat exchange medium; at least one of the second inlet pipe 152 and the second outlet pipe 162 is connected to the first connecting portion 131 and / or the second connecting portion 132 of the second connector 180.

[0228] It is understood that the first connecting portion 181 and the second connecting portion 182 of the same second connector 180 are configured to be detachably connected. When the second connector 180 is in the engaged state, the first connecting portion 181 and the second connecting portion 182 are connected and communicate with each other. At this time, the second connector 180 allows the heat exchange medium to pass through, and the second inlet pipe 152 and the second outlet pipe 162 connected to the second connector 180 can transfer the heat exchange medium with the energy storage converter 220. When the second connector 180 is in the disengaged state, the first connecting portion 181 and the second connecting portion 182 are separated from each other. At this time, neither the first connecting portion 181 nor the second connecting portion 182 allows the heat exchange medium to pass through, and the first connecting portion 181 and the second connecting portion 182 achieve the sealing of the second inlet pipe 152 or the second outlet pipe 162, etc., to which they are connected.

[0229] By adopting the above solution, the on / off control of the second liquid inlet pipe 152 and the second liquid outlet pipe 162 is controlled by connecting or separating the first connecting part 181 and the second connecting part 182. Thus, when disassembling the energy storage converter 220, the second connectors 180 on the second liquid inlet pipe 152 and the second liquid outlet pipe 162 corresponding to the energy storage converter 220 can be directly disconnected without prior discharge of the heat exchange medium. This facilitates the disassembly operation of the energy storage converter 220 while preventing heat exchange medium leakage.

[0230] In some specific implementations, the second connector 180 is a two-way shut-off valve.

[0231] In one example of this application, the first connecting portion 181 and the second connecting portion 182 of the second connector 180 are both connected to the same second inlet pipe 152 or second outlet pipe 162. In this example, when the energy storage converter 220 is under maintenance, the second inlet pipe 152 and the second outlet pipe 162 can be disconnected at the location of the second connector 180.

[0232] In another example of this application, the first connection portion 181 of the second connector 180 is directly connected to the energy storage converter 220 to serve as the liquid inlet connector of the energy storage converter 220, while the second connection portion 182 is connected to the second liquid inlet pipe 152 or the second liquid outlet pipe 162. In this example, during battery pack 211 maintenance, the entire second liquid inlet pipe 152 and the entire second liquid outlet pipe 162 can be disconnected from the battery pack 211.

[0233] In another example of this application, the first connecting portion 181 of the second connector 180 is directly connected to the second liquid inlet main line 151 or the second liquid return main line 161, while the second connecting portion 182 is connected to the second liquid inlet pipe 152 or the second liquid outlet pipe 162. In this example, during battery pack 211 maintenance, the entire second liquid inlet pipe 152 can be disconnected from the second liquid inlet main line 151, and the entire second liquid outlet pipe 162 can be disconnected from the second liquid return main line 161.

[0234] It should be noted that the second liquid cooling pipeline 100b may only be equipped with the third drain valve 172 and the fourth drain valve 173, or it may only be equipped with the second connector 180; or, the second liquid cooling pipeline 100b may also be equipped with the third drain valve 172, the fourth drain valve 173 and the second connector 180 at the same time.

[0235] In some embodiments of this application, reference is made to Figure 15The second liquid inlet main line 151 has at least two first mounting positions 151c, and the second liquid inlet pipe 152 is installed to the corresponding first mounting position 151c respectively; the second liquid return main line 161 has at least two second mounting positions 161c, and the second liquid outlet pipe 162 is installed to the corresponding second mounting position 161c.

[0236] In some embodiments of this application, reference is made to Figure 12 and Figure 15 The second liquid cooling pipeline 100b also includes: a sealing element 174; a second liquid inlet pipe 152 is installed at a first mounting position 151c on a portion of the second liquid inlet main pipeline 151, and the sealing element 174 is installed at the other portion. The sealing element 174 can seal the first mounting position 151c to which it is connected to prevent leakage of the heat exchange medium; a second liquid outlet pipe 162 is installed at a second mounting position 161c on a portion of the second liquid return main pipeline 161, and the sealing element 174 is installed at the other portion. The sealing element 174 can seal the second mounting position 161c to which it is connected to prevent leakage of the heat exchange medium.

[0237] By adopting the above scheme, the setting of the sealing component 174 allows the second liquid inlet main line 151 to reserve a portion of the second installation position 161c, and allows the second liquid return main line 161 to reserve a portion of the second installation position 161c, so as to meet the needs of increasing or decreasing the number of energy storage converters 220 in subsequent work, without having to modify the second liquid inlet main line 151 and the second liquid return main line 161.

[0238] In some specific implementation methods, refer to Figure 12 and Figure 15 The end of the sealing component 174 away from the installation position is also connected to the first connection part 181 or the second connection part 182 of the second connector 180, which can realize quick connection with the energy storage converter 220 or other heat-generating devices.

[0239] In some embodiments of this application, reference is made to Figure 2 , Figure 10 and Figure 15 At least a portion of the second inlet pipe 152 is located between the branch section 151b and the first liquid cooling pipe 100a, meaning that in the first direction, the position of the second inlet pipe 152 is lower than the position of the branch section 151b. At least a portion of the second outlet pipe 162 is located between the manifold section 161b and the first liquid cooling pipe 100a, meaning that in the first direction, the position of the second outlet pipe 162 is lower than the position of the manifold section 161b. Using this scheme, the overall dimensions of the first liquid cooling pipe 100a and the second liquid cooling pipe 100b in the first direction can be effectively controlled.

[0240] In some embodiments of this application, reference is made to Figure 1 , Figure 13 and Figure 14The second liquid cooling pipeline 100b includes a third vent valve 175. The third vent valve 175 is connected to the end of the branch section 151b away from the liquid supply section 151a, and the third vent valve 175 is connected to the end of the junction section 161b away from the liquid return section 161a.

[0241] By adopting the above scheme, the gas in the second liquid inlet main line 151 and the second liquid return main line 161 can be discharged through the setting of the third exhaust valve 175, thereby improving the continuity and stability of the heat exchange medium in the second liquid inlet main line 151 and the second liquid return main line 161.

[0242] In some specific implementation methods, refer to Figure 13 and Figure 14 The third exhaust valve 175 connected to the second liquid inlet main line 151 is positioned higher than the position of the second liquid inlet pipe 152, and the third exhaust valve 175 connected to the second liquid return main line 161 is positioned higher than the position of the second liquid outlet pipe 162. Thus, the gas in the second liquid inlet pipe 152 and the second liquid outlet pipe 162 can also be discharged from the corresponding third exhaust valve 175, thereby improving the continuity and stability of the heat exchange medium in the second liquid inlet pipe 152 and the second liquid outlet pipe 162.

[0243] Secondly, referring to Figure 1 This application provides an energy storage container 10, including a container body, a battery pack 211, an energy storage converter 220, and a temperature control system 100 as described above; the battery pack 211, the energy storage converter 220, and the temperature control system 100 are respectively installed in the container body.

[0244] The energy storage container 10 has all the beneficial effects of the temperature control system 100 described above, which will not be repeated here.

[0245] In some embodiments of this application, the energy storage container 10 includes a battery pack 210, at least two battery packs 210 are spaced apart in the left-right direction, and each battery pack 210 includes at least two battery bundles 211 arranged in the up-down direction, and a first liquid cooling pipeline 100a delivers heat exchange medium to these battery bundles 211.

[0246] At least two energy storage converters 220 are spaced apart in the left-right direction, and a second liquid cooling line 100b supplies heat exchange medium to these energy storage converters 220; in the vertical direction, the energy storage converters 220 are positioned above the battery pack 210. Correspondingly, the first liquid cooling line 100a and the second liquid cooling line 100b are located on the front or rear side of the overall structure formed by the battery pack 211 and the energy storage converters 220, reducing the impact of the first liquid cooling line 100a and the second liquid cooling line 100b on the spatial arrangement of the battery pack 211 and the energy storage converters 220.

[0247] In some embodiments of this application, the battery pack 210 and the energy storage converter 220 are both located between the whole formed by the first liquid inlet main line 111 and the first liquid return main line 121 and the whole formed by the shunt section 151b and the bus section 161b.

[0248] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A temperature control system, characterized in that, include: The first liquid cooling pipeline is configured to deliver a heat exchange medium to the battery pack for heat exchange with the battery pack. The second liquid cooling pipeline is configured to deliver a heat exchange medium to the energy storage converter for heat exchange with the energy storage converter. A liquid chiller is configured to provide heat exchange medium to the first liquid cooling pipeline and the second liquid cooling pipeline, respectively; The first liquid cooling pipe and the second liquid cooling pipe are respectively connected to the liquid chiller. At least a portion of the first liquid cooling pipe and at least a portion of the second liquid cooling pipe are spaced apart along a first direction, and on a projection plane perpendicular to the first direction, the projection of the first liquid cooling pipe and the projection of the second liquid cooling pipe at least partially overlap.

2. The temperature control system according to claim 1, characterized in that, On a projection plane perpendicular to the second direction, the projection of the first liquid cooling pipe and the projection of the second liquid cooling pipe at least partially overlap; the second direction intersects the first direction.

3. The temperature control system according to claim 1, characterized in that, The first liquid cooling pipeline includes: The first liquid inlet main line is connected to the liquid chiller; At least two diversion components are respectively connected to the first liquid inlet main line; The first main liquid circuit is connected to the liquid chiller; At least two manifold components are connected to the first return main circuit, respectively; Wherein, at least two of the current splitting components are spaced apart along the second direction, and at least two of the current combining components are spaced apart along the second direction; and adjacent current splitting components and current combining components in the second direction are spaced apart to accommodate at least two battery packs arranged in the first direction; The second direction is set to intersect with the first direction.

4. The temperature control system according to claim 3, characterized in that, In the first direction, at least a portion of the diversion assembly is located between at least a portion of the second liquid cooling pipeline and the first liquid inlet main pipeline; And / or, In the first direction, at least a portion of the manifold is located between at least a portion of the second liquid cooling line and the first return main line.

5. The temperature control system according to claim 3, characterized in that, The splitter component includes: The liquid inlet branch is connected to the first liquid inlet main line; At least two first inlet pipes are spaced apart along the first direction; The bus component includes: The liquid outlet branch is connected to the first liquid return main branch; At least two first outlet pipes are spaced apart along the first direction; In the first direction, the positions of the first liquid inlet pipe and the first liquid outlet pipe are correspondingly arranged so that the corresponding first liquid inlet pipe and the first liquid outlet pipe can be connected to the same battery pack.

6. The temperature control system according to claim 5, characterized in that, On a projection plane perpendicular to the third direction, the projection of the first liquid inlet main path and the projection of the first liquid return main path at least partially overlap. And / or, On a projection plane perpendicular to a third direction, the projection of at least one of the liquid inlet branches and the projection of at least one of the liquid outlet branches at least partially overlap. The third direction intersects with the first direction and the second direction, respectively.

7. The temperature control system according to claim 5, characterized in that, The splitter component also includes: The first switching valve is connected to the liquid inlet branch; The first drain valve is connected to the inlet branch at a position different from the first switch valve; The first drain valve and the first switch valve are both located on the side of the first inlet pipe close to the first main inlet line, and the first drain valve is disposed between the first switch valve and the first inlet pipe.

8. The temperature control system according to claim 5, characterized in that, The bus component also includes: The second switching valve is connected to the liquid outlet branch; The second drain valve is connected to the outlet branch at a position different from the second switch valve; The second drain valve and the second switch valve are located on the side of the first outlet pipe near the first return main line, and the second drain valve is disposed between the second switch valve and the first outlet pipe.

9. The temperature control system according to claim 5, characterized in that, The first liquid cooling pipeline also includes: The first connector includes a first mating portion and a second mating portion; The first connector has a coupled state and a disengaged state. When the first connector is in the coupled state, the first coupled part and the second coupled part are kept open to allow the heat exchange medium to pass through. When the first connector is in the disengaged state, both the first coupled part and the second coupled part are kept closed to block the heat exchange medium. At least one of the first inlet pipe and the first outlet pipe is connected to the first coupling portion and / or the second coupling portion of the first connector.

10. The temperature control system according to claim 5, characterized in that, The first liquid cooling pipeline also includes: a first exhaust valve; The first liquid inlet main line is connected to the first exhaust valve at the end furthest from the liquid cooler, and the first liquid return main line is connected to the first exhaust valve at the end furthest from the liquid cooler. And / or, The first liquid cooling pipeline also includes: a second vent valve; The inlet branch is connected to the second exhaust valve at the end furthest from the first inlet main line, and the outlet branch is connected to the second exhaust valve at the end furthest from the first return main line.

11. The temperature control system according to any one of claims 1 to 10, characterized in that, The second liquid cooling pipeline includes: The second liquid inlet main line is connected to the liquid chiller; At least two first connection components are respectively connected to the second liquid inlet main; The second main liquid circuit is connected to the liquid chiller; At least two second connection components are respectively connected to the second return fluid main circuit; Wherein, at least two of the first connecting components are spaced apart along the second direction, and at least two of the second connecting components are spaced apart along the second direction; at least one of the first connecting components and at least one of the second connecting components are connected to the same energy storage converter; The second direction is set to intersect with the first direction.

12. The temperature control system according to claim 11, characterized in that, On a projection plane perpendicular to the third direction, the projection of the second inlet main path and the projection of the second return main path at least partially overlap; The third direction intersects with the first direction and the second direction, respectively.

13. The temperature control system according to claim 12, characterized in that, The second liquid inlet main path includes: The branch section is connected to at least two of the first connection components; A liquid supply section is connected between the diversion section and the liquid chiller; At least a portion of the diversion section extends along a second direction, and at least a portion of the liquid supply section extends along a first direction. The second return main circuit includes: The busbar is connected to at least two of the second connection components; The return liquid section is connected between the manifold and the liquid chiller; At least a portion of the manifold extends along a second direction, and at least a portion of the return section extends along a first direction. On a projection plane perpendicular to the third direction, the projection of the diversion section and the projection of the confluence section at least partially coincide, and the projection of the liquid supply section and the projection of the liquid return section at least partially coincide.

14. The temperature control system according to claim 13, characterized in that, The first connection component includes: At least two second inlet pipes are spaced apart along the second direction; The second connection component includes: At least two second outlet pipes are provided at intervals along the second direction; The second inlet pipe is connected to the branch section, and the second outlet pipe is connected to the confluence section; at least one second inlet pipe and at least one second outlet pipe are connected to the same energy storage converter.

15. The temperature control system according to claim 14, characterized in that, The second liquid cooling pipeline also includes: The third drain valve is connected to the liquid supply section; The fourth drain valve is connected to the return section; Specifically, on the projection plane perpendicular to the second direction, the projection of the third drain valve is located on the side of the projection of the second inlet pipe that is close to the projection of the first liquid cooling pipe, and the projection of the fourth drain valve is located on the side of the projection of the second outlet pipe that is close to the projection of the first liquid cooling pipe.

16. The temperature control system according to claim 14, characterized in that, The second liquid cooling pipeline includes: The second connector includes a first connecting part and a second connecting part; The second connector has an engaged state and a disengaged state. When the second connector is engaged, the first connecting part and the second connecting part remain open to allow the heat exchange medium to pass through. When the second connector is disengaged, both the first connecting part and the second connecting part remain closed to block the heat exchange medium. At least one of the second inlet pipe and the second outlet pipe is connected to the first connection portion and / or the second connection portion of the second connector.

17. The temperature control system according to claim 14, characterized in that, The second liquid cooling pipeline includes: a third vent valve; The third vent valve is connected to the end of the diversion section away from the liquid supply section, and the third vent valve is also connected to the end of the confluence section away from the liquid return section.

18. An energy storage container, characterized in that, Includes a housing, a battery pack, an energy storage converter, and a temperature control system as described in any one of claims 1 to 17; The battery pack, the energy storage converter, and the temperature control system are respectively installed in the enclosure.

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