Current collecting structure, temperature regulating assembly and battery pack

Abstract

The application provides a current collecting structure, a temperature adjusting assembly and a battery pack. The current collecting structure comprises a current collector and a connecting piece. The current collector comprises a current collecting cavity. The current collector has an opening in communication with the current collecting cavity at one end in a first direction. The connecting piece comprises a channel penetrating in the first direction. The connecting piece comprises a first end and a second end distributed in the first direction. The first end is inserted into the one end of the current collector having the opening, so that the current collecting cavity is in communication with the channel. The second end is used for connecting with a temperature adjusting plate, so that the channel is in communication with a flow channel in the temperature adjusting plate. The current collector is provided with a first limiting part. The connecting piece is provided with a first abutting part. The first limiting part is located on one side of the first abutting part in the first direction. The first limiting part is used for abutting with the first abutting part, so as to limit the movement of the connecting piece relative to the current collector in the first direction. The current collecting structure provided by the application can reduce the production cost of the current collector, and further reduce the cost of the current collecting structure.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a current collector structure, a temperature regulation component, and a battery pack. Background Technology

[0002] A battery pack typically includes multiple rows of cells and a temperature regulation assembly. The temperature regulation assembly includes a temperature regulation plate located between two adjacent rows of cells, and a current collector connected to the temperature regulation plate. Adjacent temperature regulation plates are connected through the current collector to allow the temperature regulation medium to be distributed to different temperature regulation plates through the current collector, and to cool or heat the cells of the battery pack through the temperature regulation plates.

[0003] However, in related technologies, the current collector of the manifold structure is welded to the temperature regulating plate, which results in a high manufacturing cost of the current collector and increases the production cost of the manifold structure. Utility Model Content

[0004] Embodiments of this application provide a current collector structure, a temperature regulation component, and a battery pack, which can improve the technical problem of high production cost of current collectors in current collector structures.

[0005] Firstly, embodiments of this application provide a flow collection structure, including: A current collector includes a current collection cavity, and one end of the current collector along a first direction has an opening communicating with the current collection cavity; A connector, comprising a channel extending along the first direction, and including a first end and a second end distributed along the first direction, wherein the first end is inserted into the end of the current collector having the opening, so that the current collector cavity communicates with the channel; and the second end is used to connect to a temperature regulating plate, so that the channel communicates with the flow channel within the temperature regulating plate. The current collector is provided with a first limiting part, and the connector is provided with a first abutting part. The first limiting part is located on one side of the first abutting part along the first direction. The first limiting part is used to abut against the first abutting part to restrict the connector from moving relative to the current collector along the first direction.

[0006] In one embodiment, the first end of the connector is inserted into the opening so that the first end is connected to the end of the current collector having the opening. The first limiting portion protrudes from the inner circumferential surface of the current collecting cavity, and the first abutting portion protrudes from the outer circumferential surface of the connector. This makes it easier to connect the first end of the connector to the end of the current collector having the opening, and the first limiting portion can stably abut against the first abutting portion to restrict the connector from moving relative to the current collector along a first direction; or The end of the current collector with the opening is inserted into the channel so that the first end is inserted into the end of the current collector with the opening. The first limiting part protrudes from the outer peripheral surface of the current collector, and the first abutting part protrudes from the inner peripheral surface of the channel. This makes it easier to insert the first end of the connector into the end of the current collector with the opening, and allows the first limiting part to stably abut against the first abutting part, thereby restricting the connector from moving relative to the current collector in the first direction.

[0007] In one embodiment, the first abutting portion extends circumferentially along the opening to increase the length of the first abutting portion extending circumferentially in the opening of the collector, so that the first limiting portion can abut more stably against the first abutting portion; and / or, the first limiting portion extends circumferentially along the opening to increase the length of the first limiting portion extending circumferentially in the opening of the collector, so that the first limiting portion can abut more stably against the first abutting portion.

[0008] In one embodiment, the connector is provided with a second abutting portion located on one side of the first limiting portion along the first direction. The first limiting portion abuts against the second abutting portion to restrict the connector's reverse movement relative to the current collector along the first direction. Through the cooperation of the first and second abutting portions with the first limiting portion, the relative movement of the current collector and the connector in the first direction and in the opposite direction can be limited, making the connection between the current collector and the connector more stable; or... The current collector is provided with a second limiting part, and the first abutting part is located on one side of the second limiting part along the first direction. The second limiting part is used to abut against the first abutting part to limit the reverse movement of the connector relative to the current collector along the first direction. By cooperating with the first limiting part and the second limiting part and the first abutting part, the relative movement of the current collector and the connector in the first direction and the opposite direction of the first direction can be limited, making the connection between the current collector and the connector more stable.

[0009] In one embodiment, the current collector is injection molded to the connector, thereby making the processing of the current collector and the connector more convenient and the connection between the current collector and the connector more stable; or, the current collector is bonded to the connector, thereby making the connection between the current collector and the connector more convenient.

[0010] In one embodiment, the flow collection structure further includes: A first connector is movably installed on one side of the current collector along the second direction. The first connector includes a first through hole communicating with the current collector cavity. The second direction forms an angle with the first direction. The second connector is located on the side of the current collector opposite to the first connector. The second connector includes a second through hole communicating with the current collector. The second connector is used to connect to the first connector of another current collector structure so that the second through hole communicates with the first through hole of the other current collector structure.

[0011] By allowing the first connector to move relative to the current collector, when connecting the first connector to the second connector of another current collector structure and connecting the second through hole to the first through hole of another current collector structure, the position of the first connector can be adaptively adjusted according to the relative position of the first connector and the second connector of another current collector structure. This allows the first connector to be accurately connected to the second connector of another current collector structure, reducing the assembly accuracy requirements between the first connector and the second connector of another current collector structure. This helps to reduce the cost of the battery pack and improve the assembly efficiency of the battery pack.

[0012] In one embodiment, the first connector includes a guide section extending from one end of the first connector along the second direction toward the current collector. The outer diameter of the guide section gradually decreases along the second direction. When the first connector is inserted into the second through hole of the second connector of another current collector structure to connect the first connector with the second connector of the other current collector structure, the outer peripheral surface of the guide section can guide the first connector to be quickly and accurately inserted into the second through hole of the second connector of the other current collector structure, thereby improving the connection efficiency of the two current collector structures; and / or, The second through hole includes a guide hole section that extends from the end of the second connector away from the current collector along the second direction. The inner diameter of the guide hole section gradually decreases along the second direction. When the first connector is inserted into the second through hole of the second connector of another current collector structure to connect the first connector with the second connector of another current collector structure, the inner circumferential surface of the guide hole section can guide the first connector to be quickly and accurately inserted into the second through hole of the second connector of another current collector structure, thereby improving the connection efficiency of the two current collector structures.

[0013] In one embodiment, the first connector is movable radially relative to the current collector in the first through hole, and the amount of movement of the first connector relative to the current collector in the first through hole in the first through hole is λ. The difference between the maximum and minimum circumscribed circle radii of the guide segment is X1, where X1 ≥ 0.5λ, to further improve the guiding effect of the guide segment, enabling the first connector to be inserted more quickly and accurately into the second through hole of the second connector of another flow collector structure; and / or, The difference between the maximum and minimum inscribed circle radii of the guide hole section is X2, where X2-0.5λ≥0.5mm, in order to further improve the guiding effect of the guide hole section and enable the first connector to be inserted more quickly and accurately into the second through hole of the second connector of another flow collection structure.

[0014] In one embodiment, the current collector has a connecting structure on one side along the second direction. The first connector includes a connecting portion, which is movably connected to the connecting structure. A sealing ring is provided between the first connector and the current collector, surrounding the first through hole. The first connector and the current collector clamp the sealing ring to form a sealing protection structure. By allowing the first connector to move relative to the current collector and providing a sealing ring between the first connector and the current collector, a sealing protection structure is formed between the first connector and the current collector. While the position of the first connector relative to the current collector is adjustable, the temperature regulating medium in the current collection cavity and the first through hole will not leak out from the gap between the first connector and the first plate.

[0015] In one embodiment, the first connector can move radially relative to the connecting structure in the first through hole. When connecting the first connector to the second connector of another current collector structure, so that the second through hole communicates with the first through hole of the other current collector structure, if the first connector and the second connector of the other current collector structure are misaligned radially in the first through hole, the first connector can be aligned with the second connector of the other current collector structure by moving the first connector a certain distance radially relative to the connecting structure in the first through hole, so that the first connector and the second connector of the other current collector structure can be quickly and accurately connected together; and / or, The first connector can swing radially relative to the connecting structure in the first through hole. When connecting the first connector to the second connector of another current collector structure, so that the second through hole is connected to the first through hole of the other current collector structure, if the first connector and the second connector of the other current collector structure are tilted at a certain angle in the radial direction of the first through hole, by swinging the first connector relative to the connecting structure in the radial direction of the first through hole at a certain angle, the first connector and the second connector of the other current collector structure can be aligned, so that the first connector and the second connector of the other current collector structure can be quickly and accurately connected together; and / or, The first connector can move axially relative to the connecting structure in the first through hole. When the first connector is connected to the second connector of another current collection structure, so that the second through hole is connected to the first through hole of another current collection structure, if the distance between the first connector and the second connector of another current collection structure in the first through hole is far, the first connector can be quickly and accurately connected to the second connector of another current collection structure by moving the first connector relative to the connecting structure in the first through hole by a certain distance.

[0016] In one embodiment, the connecting structure includes a limiting member connected to the current collector. The limiting member is located on the side of the connecting portion opposite to the current collector, and is used to abut against the side of the connecting portion opposite to the current collector, so that the connecting portion and the current collector clamp the sealing ring. Thus, a thrust can be applied to the connecting portion by the limiting member, causing the connecting portion and the current collector to clamp the sealing ring. Furthermore, the connecting portion can also move and swing radially relative to the connecting structure in the first through hole of the first connector, and can also move a certain distance axially along the first through hole, so that the first connector can move and swing radially relative to the connecting structure in the first through hole, and can also move axially along the first through hole.

[0017] In one embodiment, the connecting structure further includes a connecting protrusion protruding from one side of the collecting structure along the second direction. The connecting protrusion forms a groove, and the bottom surface of the groove has an interface communicating with the collecting cavity. The connecting portion is at least partially accommodated in the groove. The first through hole communicates with the interface. The limiting member is connected to the connecting protrusion to make the connection between the limiting member and the collecting fluid more convenient. The limiting member can be located on the side of the connecting portion of the first connector away from the collecting fluid to stably limit the connecting portion.

[0018] In one embodiment, the limiting member is disposed around the first connector; the limiting member has a clearance hole for the first connector to pass through; The first connector includes a mating section located within the clearance hole, the inner diameter of which is larger than the outer diameter of the mating section; the outer diameter of the connecting portion is larger than the inner diameter of the clearance hole. This allows the limiting member to have a larger contact area with the surface of the connecting portion opposite to the collector fluid, resulting in a more stable contact between the limiting member and the connecting portion. Furthermore, the clearance hole provides space for the mating section to move and swing radially within the first through hole, allowing the first connector to move and swing radially relative to the connecting structure within the first through hole. Additionally, this ensures a more stable contact between the limiting member and the side of the connecting portion opposite to the collector fluid, preventing the connecting portion from dislodging from the clearance hole.

[0019] In one embodiment, the limiting member has a first engaging portion on the side opposite to the current collector, and the current collector has a second engaging portion on the side opposite to the first connector. The second engaging portion is used to engage with the first engaging portion of another current collector structure to limit the relative movement distance of the two current collector structures in the second direction. This makes the connection between the first connector and the second connector of the other current collector structure more stable, reducing the risk of the two current collector structures separating due to opposite movement in the second direction.

[0020] In one embodiment, the first latching portion includes a first sub-latching portion, and the second latching portion includes two second sub-latching portions spaced apart along the second direction. The first sub-latching portion is located between the two second sub-latching portions, and the two second sub-latching portions are used to abut against the first sub-latching portion to limit the relative movement distance of the two current collection structures in the second direction. In the second direction, the distance between the two second sub-connectors is greater than the width of the first sub-connector. Therefore, the first sub-connector can move a certain distance between the two second sub-connectors in the second direction, which helps to reduce the assembly precision requirements of the two current collector structures.

[0021] In one embodiment, the connecting portion is located at the end of the first connector near the current collector, and the first through hole penetrates the connecting portion; the sealing ring is located between the connecting portion and the current collector, and the connecting portion and the current collector clamp the sealing ring. By clamping the sealing ring between the connecting portion and the current collector, the gap between the first connector and the current collector can be effectively sealed.

[0022] In one embodiment, the compression ratio of the sealing ring is greater than or equal to 10% and less than or equal to 50%, which enables the sealing ring to have a high sealing effect and sealing stability.

[0023] In one embodiment, the compression ratio of the sealing ring is greater than or equal to 15% and less than or equal to 30% to improve the sealing effect and extend the sealing time.

[0024] Secondly, embodiments of this application provide a temperature regulating component, including: A temperature regulating plate, wherein a flow channel is provided inside the temperature regulating plate; A flow collection structure, as described above, includes a flow collector and a connector. The flow collector includes a flow collection cavity, and one end of the flow collector along a first direction has an opening communicating with the flow collection cavity. The connector includes a channel extending along the first direction and includes a first end and a second end distributed along the first direction. The first end is inserted into the end of the flow collector with the opening, so that the flow collection cavity communicates with the channel. The second end is used to connect to one end of a temperature regulating plate, so that the channel communicates with a flow channel within the temperature regulating plate. The flow collector is provided with a first limiting portion, and the connector is provided with a first abutting portion. The first limiting portion is located on one side of the first abutting portion along the first direction and is used to abut against the first abutting portion to restrict the movement of the connector relative to the flow collector along the first direction.

[0025] Thirdly, embodiments of this application provide a battery pack, comprising: Battery cell assembly, including multiple rows of battery cells; A temperature regulating component, wherein the temperature regulating component is as described above, and the temperature regulating plate of the temperature regulating component is disposed between two adjacent rows of cells.

[0026] The beneficial effects of the embodiments of this application are as follows: The flow collection structure provided in this application embodiment connects the first end of the connector to the open end of the flow collector, thereby communicating the flow collection cavity of the flow collector with the channel of the connector. A first limiting portion is provided in the flow collector, and a first abutting portion is provided in the connector. The first limiting portion is located on one side of the first abutting portion along a first direction, allowing it to abut against the first abutting portion to restrict the connector from moving relative to the flow collector along the first direction, thus ensuring a stable connection between the connector and the flow collector. When the second end of the connector is connected to a temperature regulating plate, so that the flow channel within the temperature regulating plate communicates with the channel of the connector, the flow channel within the temperature regulating plate communicates with the flow collection cavity of the flow collector.

[0027] Compared with the related technologies in which the current collector is directly welded to the temperature regulating plate, the current collector structure provided in this application first connects to the connecting member, and then the connecting member is connected to the temperature regulating plate. The current collector does not need to be directly welded to the temperature regulating plate. The current collector and the temperature regulating plate can be made of different materials, which helps to reduce the production cost of the current collector, thereby reducing the cost of the current collector structure. Attached Figure Description

[0028] 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.

[0029] Figure 1 This is a schematic diagram of the structure of one embodiment of the battery pack provided in this application. Figure 2 A schematic diagram of the mating structure of the battery cell and temperature regulation component provided in an embodiment of this application; Figure 3 A schematic diagram of one embodiment of the flow collection structure provided in this application; Figure 4 for Figure 3 A cross-sectional view along the AA direction; Figure 5 for Figure 3 A cross-sectional view along the BB direction; Figure 6An exploded view of one embodiment of the flow collection structure provided in this application; Figure 7 This is a schematic diagram of the structure after the two current collection structures are connected, as provided in an embodiment of this application. Figure 8 for Figure 7 A cross-sectional view along the CC direction.

[0030] Explanation of reference numerals in the attached figures: 1-Battery pack; 10-Temperature regulation assembly; 11-Current collector structure; 110-Current collector; 1110-Current collector cavity; 1112-Connecting structure; 1113-Limiting member; 1114-Allowing hole; 1115-Connecting protrusion; 1116-Groove; 1119-Interface; 1120-Opening; 1121-First limiting part; 1122-Second limiting part; 1123-First snap-fit ​​part; 1124-First sub-snap-fit ​​part; 1125-First protrusion; 113-First connector; 1131-First through hole; 1132-Connecting part; 1136-Mating section; 1137-Guide section; 1138 - Positioning part; 1139 - Positioning groove; 115 - Second connector; 1152 - Second through hole; 1153 - Guide hole section; 1154 - Second snap-fit ​​part; 1155 - Second sub-snap-fit ​​part; 1156 - Second protrusion part; 1141 - Sealing ring; 1142 - Annular seal; 116 - Connector; 1161 - First end; 1162 - Second end; 1163 - Channel; 1164 - First abutment part; 1165 - Second abutment part; 12 - Temperature regulating plate; 121 - Flow channel; 2 - Battery cell assembly; 20 - Battery cell; 30 - Housing; X - First direction; Y - Second direction. Detailed Implementation

[0031] 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 a part of the embodiments of this application, and not all of the 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. In addition, 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. 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 actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0032] This application provides a current collector structure, a temperature regulation component, and a battery pack. These will be described in detail below.

[0033] Figure 1This is a schematic diagram of the structure of one embodiment of the battery pack provided in this application. Figure 2 This is a schematic diagram illustrating the mating structure of the battery cell and temperature regulation assembly provided in an embodiment of this application. Figure 1 and Figure 2 As shown, the battery pack 1 includes a cell assembly 2 and a temperature regulation assembly 10. The cell assembly 2 includes multiple cells 20. The temperature regulation assembly 10 exchanges heat with the outer peripheral surface of the cells 20 to regulate the temperature of the multiple cells 20 so that the multiple cells 20 are at a suitable operating temperature.

[0034] It should be noted that the temperature regulation component 10 can heat or cool multiple battery cells 20, depending on the ambient temperature of the internal thermometer of the battery pack 1.

[0035] The battery cell assembly 2 may include multiple rows of battery cells 20. The temperature regulation assembly 10 includes a temperature regulation plate 12 and a current collector structure 11. The temperature regulation plate 12 has a flow channel 121. The current collector structure 11 is connected to the temperature regulation plate 12. Two adjacent temperature regulation assemblies 10 are connected through the current collector structure 11, so that the temperature regulation medium can be distributed through the current collector structure 11 to the flow channels 121 of different temperature regulation plates 12, and heat exchange can be performed on the battery cells 20 of the battery pack 1 through the temperature regulation plate 12 to cool or heat the battery cells 20. The temperature regulation medium can be coolant, refrigerant, etc., and is not limited here.

[0036] Specifically, the battery pack 1 includes a housing 30, a cell assembly 2, and a temperature regulation assembly 10 disposed within the housing 30. The temperature regulation assembly 10 is located between two adjacent rows of cells 20 in the cell assembly 2. The temperature regulation plate 12 of the temperature regulation assembly 10 is located between two adjacent rows of cells 20. The temperature regulation plate 12 is in direct contact with the outer peripheral surface of the two adjacent rows of cells 20, or through a heat-conducting layer. After the temperature regulation medium flows into the flow channel 121 of the temperature regulation plate 12 via the current collector 11, the temperature regulation medium exchanges heat with the cells 20 through the temperature regulation plate 12 to cool or heat the cells 20.

[0037] To reduce the production cost of the current collection structure, this application provides a current collection structure.

[0038] like Figure 3 and Figure 4As shown, the flow collection structure 11 includes a flow collector 110 and a connector 116. The flow collector 110 includes a flow collection cavity 1110, and one end of the flow collector 110 along the first direction X has an opening 1120 communicating with the flow collection cavity 1110. The connector 116 includes a channel 1163 extending along the first direction X. The connector 116 includes a first end 1161 and a second end 1162 distributed along the first direction X. The first end 1161 is inserted into the end of the flow collector 110 with the opening 1120 so that the flow collection cavity 1110 communicates with the channel 1163. The second end 1162 is used to connect to a temperature regulating plate 12 so that the channel 1163 communicates with the flow channel 121 in the temperature regulating plate 12.

[0039] The current collector 110 may be provided with a first limiting part 1121, and the connector 116 may be provided with a first abutting part 1164. The first limiting part 1121 is located on one side of the first abutting part 1164 along the first direction X, so that the first limiting part 1121 abuts against the first abutting part 1164 to restrict the connector 116 from moving relative to the current collector 110 along the first direction X.

[0040] The flow collection structure 11 provided in this application embodiment connects the first end 1161 of the connector 116 to the end of the flow collector 110 with an opening 1120, so that the flow collection cavity 1110 of the flow collector 110 is connected to the channel 1163 of the connector 116. A first limiting part 1121 is provided in the flow collector 110, and a first abutting part 1164 is provided in the connector 116. The first limiting part 1121 is located on the side of the first abutting part 1164 along the first direction X, so that the first limiting part 1121 abuts against the first abutting part 1164 to restrict the movement of the connector 116 relative to the flow collector 110 along the first direction X, thereby making the connector 116 and the flow collector 110 stably connected together. When the second end 1162 of the connector 116 is connected to the temperature regulating plate 12, so that the flow channel 121 in the temperature regulating plate 12 is connected to the channel 1163 of the connector 116, the flow channel 121 in the temperature regulating plate 12 can be connected to the collection cavity 1110 of the collector 110, so that the temperature regulating medium in the collection cavity 1110 of the collector 110 can flow into the flow channel 121 of the temperature regulating plate 12, or the temperature regulating medium in the flow channel 121 of the temperature regulating plate 12 can flow into the collection cavity 1110 of the collector 110.

[0041] Compared with the related technology in which the current collector 110 is directly welded to the temperature regulating plate 12, the current collector 110 of the current collection structure 11 provided in this application is first connected to the connector 116, and then the connector 116 is connected to the temperature regulating plate 12. The current collector 110 does not need to be directly welded to the temperature regulating plate 12. The current collector 110 and the temperature regulating plate 12 can be made of different materials, which is beneficial to reduce the production cost of the current collector 110, and thus reduce the cost of the current collection structure 11.

[0042] In particular, when the temperature regulating plate 12 is made of a metal with high thermal conductivity, the material of the current collector 110 can be plastic or other low-cost materials, making the cost of the current collector 110 of the current collection structure 11 even lower.

[0043] In some embodiments, such as Figure 4 As shown, the first end 1161 of the connector 116 can be inserted into the opening 1120 of the collector 110, so that the first end 1161 is connected to the end of the collector 110 with the opening 1120, making it easier to connect the first end 1161 of the connector 116 to the end of the collector 110 with the opening 1120. Specifically, the first limiting part 1121 can protrude from the inner circumferential surface of the collector cavity 1110, and the first abutting part 1164 can protrude from the outer circumferential surface of the connector 116, so that the first limiting part 1121 can stably abut against the first abutting part 1164, thereby restricting the movement of the connector 116 relative to the collector 110 along the first direction X.

[0044] The first abutting portion 1164 can be extended circumferentially along the opening 1120 of the collector 110 to increase the length of the first abutting portion 1164 extending circumferentially in the opening 1120 of the collector 110, so that the first limiting portion 1121 can abut more stably with the first abutting portion 1164.

[0045] In some embodiments, the first limiting portion 1121 may extend circumferentially along the opening 1120 to increase the length of the first limiting portion 1121 extending circumferentially in the opening 1120 of the current collector 110, so that the first limiting portion 1121 can more stably abut against the first abutting portion 1164.

[0046] It should be noted that both the first limiting part 1121 and the first abutting part 1164 can extend along the circumference of the opening 1120, or only the first limiting part 1121 or the first abutting part 1164 can extend along the circumference of the opening 1120. Of course, the former can make the abutment of the first limiting part 1121 and the first abutting part 1164 more stable.

[0047] In other embodiments, the end of the current collector 110 with the opening 1120 can be inserted into the channel 1163 of the connector 116, so that the first end 1161 is inserted into the end of the current collector 110 with the opening 1120, making it easier to insert the first end 1161 of the connector 116 into the end of the current collector 110 with the opening 1120. Specifically, the first limiting part 1121 can protrude from the outer peripheral surface of the current collector 110, and the first abutting part 1164 can protrude from the inner peripheral surface of the channel 1163, so that the first limiting part 1121 can stably abut against the first abutting part 1164, thereby restricting the movement of the connector 116 relative to the current collector 110 along the first direction X.

[0048] In some embodiments, such as Figure 4 As shown, a second abutment portion 1165 may be provided on the connector 116. This second abutment portion 1165 is located on one side of the first limiting portion 1121 along the first direction X. The first limiting portion 1121 is used to abut against the second abutment portion 1165 to limit the reverse movement of the connector 116 relative to the current collector 110 along the first direction X. Thus, by cooperating with the first abutment portion 1164 and the second abutment portion 1165 and the first limiting portion 1121, the relative movement of the current collector 110 and the connector 116 in the first direction X and the opposite direction of the first direction X can be limited, making the connection between the current collector 110 and the connector 116 more stable.

[0049] Continue to refer to Figure 4 Alternatively, a second limiting portion 1122 can be provided on the current collector 110, and the first abutting portion 1164 can be located on one side of the second limiting portion 1122 along the first direction X. The second limiting portion 1122 is used to abut against the first abutting portion 1164 to limit the reverse movement of the connector 116 relative to the current collector 110 along the first direction X. Thus, by cooperating with the first limiting portion 1121 and the second limiting portion 1122 and the first abutting portion 1164, the relative movement of the current collector 110 and the connector 116 in the first direction X and the opposite direction of the first direction X can be limited, making the connection between the current collector 110 and the connector 116 more stable.

[0050] Specifically, the connector 116 is a pipe structure extending along the first direction X. The first abutting portion 1164 abuts against the second limiting portion 1122 on one side along the first direction X. The first limiting portion 1121 abuts against the first abutting portion 1164 on one side along the first direction X. The second abutting portion 1165 abuts against the first limiting portion 1121 on one side along the first direction X. The second abutting portion 1165 protrudes from the outer periphery of the connector 116. The second abutting portion 1165 extends circumferentially along the opening 1120. The second limiting portion 1122 is provided on the inner circumferential surface of the collecting cavity 1110. The second limiting portion 1122 extends circumferentially along the opening 1120. The first abutting portion 1164 extends circumferentially along the opening 1120 in a ring structure. The second abutting portion 1165 extends circumferentially along the opening 1120 in a ring structure. The first limiting portion 1121 extends circumferentially along the opening 1120 in a ring structure. The second limiting part 1122 extends circumferentially along the opening 1120 in a ring structure.

[0051] In some embodiments, the current collector 110 and the connector 116 can be injection molded together, thereby making the processing of the current collector 110 and the connector 116 more convenient and the connection between the current collector 110 and the connector 116 more stable.

[0052] Alternatively, the current collector 110 can be bonded to the connector 116, making the connection between the current collector 110 and the connector 116 more convenient.

[0053] In some embodiments, such as Figure 5 and Figure 7 As shown, the flow collection structure 11 may further include a first connector 113 and a second connector 115. The first connector 113 is movably installed on one side of the flow collector 110 along the second direction Y. The first connector 113 includes a first through hole 1131 communicating with the flow collection cavity 1110. The second direction Y forms an angle with the first direction X. The second connector 115 is located on the side of the flow collector 110 away from the first connector 113. The second connector 115 includes a second through hole 1152 communicating with the flow collector 110. The second connector 115 is used to connect with the first connector 113 of another flow collection structure 11, so that the second through hole 1152 communicates with the first through hole 1131 of the other flow collection structure 11. This allows the flow collection cavities 1110 of the flow collectors 110 of the two interconnected flow collection structures 11 to communicate, and allows the two temperature regulating components 10 to be connected in parallel or in series through the flow collection structures 11.

[0054] By making the first connector 113 movable relative to the current collector 110, when the first connector 113 is connected to the second connector 115 of another current collector structure 11, and the second through hole 1152 is connected to the first through hole 1131 of another current collector structure 11, the position of the first connector 113 can be adaptively adjusted according to the relative position of the first connector 113 and the second connector 115 of the other current collector structure 11, so that the first connector 113 can be accurately connected to the second connector 115 of the other current collector structure 11. This reduces the assembly accuracy requirements of the first connector 113 and the second connector 115 of the other current collector structure 11, which is beneficial to reduce the cost of the battery pack 1 and improve the assembly efficiency of the battery pack 1.

[0055] It should be noted that the first direction X can be made to be basically perpendicular to the second direction Y, or the angle formed by the first direction X and the second direction Y can be an acute angle, depending on the shape and size of the current collection structure 11.

[0056] In some embodiments, the first connector 113 may be inserted into the second through hole 1152 of the second connector 115 of another current collection structure 11, so that the first connector 113 is connected to the second connector 115 of the other current collection structure 11.

[0057] Multiple annular seals 1142 can be fitted onto the outer circumferential surface of the first connector 113. When the first connector 113 is inserted into the second through hole 1152 of the second connector 115 of another flow collector 11, the annular seals 1142 abut against the inner circumferential surface of the second through hole 1152 of the second connector 115 of the other flow collector 11, so as to form a sealing structure between the outer circumferential surface of the first connector 113 and the inner circumferential surface of the second through hole 1152 of the second connector 115 of the other flow collector 11, thereby preventing the temperature regulating medium from leaking out from the gap between the outer circumferential surface of the first connector 113 and the inner circumferential surface of the second through hole 1152 of the second connector 115 of the other flow collector 11.

[0058] Of course, the second connector 115 of another current collection structure 11 can also be inserted into the first through hole 1131 of the first connector 113 of the current collection structure 11, so that the first connector 113 is connected to the second connector 115 of another current collection structure 11.

[0059] In some embodiments, such as Figure 5 and Figure 8As shown, the first connector 113 can include a guide section 1137, which extends from one end of the first connector 113 along the second direction Y toward the collector 110. The outer diameter of the guide section 1137 gradually decreases along the second direction Y. Therefore, when the first connector 113 is inserted into the second through hole 1152 of the second connector 115 of another collector structure 11 to connect the first connector 113 to the second connector 115 of the other collector structure 11, the outer peripheral surface of the guide section 1137 can guide the first connector 113, allowing it to be quickly and accurately inserted into the second through hole 1152 of the second connector 115 of the other collector structure 11, thus improving the connection efficiency of the two collector structures 11.

[0060] like Figure 5 As shown, the first connector 113 can move radially relative to the current collector 110 in the first through hole 1131. The amount of radial movement of the first connector 113 relative to the current collector 110 in the first through hole 1131 is λ. The difference between the maximum and minimum circumscribed circle radius of the guide section 1137 is X1. X1 can be ≥ 0.5λ. Therefore, the guiding effect of the guide section 1137 can be further improved, allowing the first connector 113 to be inserted more quickly and accurately into the second through hole 1152 of the second connector 115 of the other current collector structure 11.

[0061] X1 can be 0.6λ, 0.68λ, 0.72λ, 0.8λ, 0.9λ, etc., and can be determined according to the size and shape of the first connector 113 and the first through hole 1131.

[0062] Alternatively, the second through hole 1152 can include a guide hole section 1153, which extends along the second direction Y from the end of the second connector 115 away from the current collector 110, and the inner diameter of the guide hole section 1153 gradually decreases along the second direction Y. Thus, when the first connector 113 is inserted into the second through hole 1152 of the second connector 115 of another current collector structure 11 to connect the first connector 113 to the second connector 115 of the other current collector structure 11, the inner circumferential surface of the guide hole section 1153 can guide the first connector 113, allowing it to be quickly and accurately inserted into the second through hole 1152 of the second connector 115 of the other current collector structure 11, thereby improving the connection efficiency of the two current collector structures 11.

[0063] like Figure 5As shown, the difference between the maximum and minimum inscribed circle radii of the guide hole segment 1153 is X2, where X2-0.5λ ≥ 0.5 mm. This further improves the guiding effect of the guide hole segment 1153, allowing the first connector 113 of one of the two flow collectors 11 to be inserted more quickly and accurately into the second through hole 1152 of the second connector 115 of the other flow collector 11 after being subjected to tooling force during the assembly of the two flow collectors 11. The value of X2-0.5λ can be 0.55 mm, 0.62 mm, 0.68 mm, 0.72 mm, 0.8 mm, 0.9 mm, etc., specifically determined according to the size and shape of the first connector 113 and the first through hole 1131.

[0064] It should be noted that the first connector 113 may include a guide section 1137, and the second through hole 1152 may include a guide hole section 1153; alternatively, the first connector 113 may only include a guide section 1137, or the second through hole 1152 may only include a guide hole section 1153. Of course, the former allows the first connector 113 to be inserted more quickly and accurately into the second through hole 1152 of the second connector 115 of the other manifold structure 11.

[0065] In some embodiments, such as Figure 3 , Figure 5 and Figure 6 As shown, a connecting structure 1112 can be provided on one side of the current collector 110 along the second direction Y. The first connector 113 includes a connecting part 1132, which is movably connected to the connecting structure 1112, so that the first connector 113 is movably installed on one side of the current collector 110 along the first direction X. A sealing ring 1141 is provided between the first connector 113 and the current collector 110. The sealing ring 1141 is arranged around the first through hole 1131, and the first connector 113 and the current collector 110 clamp the sealing ring 1141 to form a sealing and protective structure. Thus, while the position of the first connector 113 relative to the current collector 110 is adjustable, the temperature regulating medium in the current collector cavity 1110 and the first through hole 1131 will not leak out from the gap between the first connector 113 and the first plate.

[0066] The sealing ring 1141 can be made of materials such as ethylene propylene diene monomer (EPDM), vinyl methyl silicone rubber (VMQ), and fluororubber (FKM). The first connector 113 can be made of rigid materials such as polyphenylene sulfide (PPS), glass fiber reinforced nylon 66 (PA66+GF), and polyphthalamide (PPA).

[0067] In some embodiments, the first connector 113 may be movable radially relative to the connecting structure 1112 in the first through hole 1131. When the first connector 113 is connected to the second connector 115 of another collector structure 11, and the second through hole 1152 is connected to the first through hole 1131 of the other collector structure 11, if the first connector 113 and the second connector 115 of the other collector structure 11 are misaligned radially in the first through hole 1131, the first connector 113 and the second connector 115 of the other collector structure 11 can be aligned by moving the first connector 113 a certain distance radially relative to the connecting structure 1112 in the first through hole 1131, so that the first connector 113 and the second connector 115 of the other collector structure 11 can be connected together quickly and accurately.

[0068] Alternatively, the first connector 113 can be oscillated radially relative to the connecting structure 1112 in the first through hole 1131. When connecting the first connector 113 to the second connector 115 of another collector structure 11, and making the second through hole 1152 communicate with the first through hole 1131 of the other collector structure 11, if the first connector 113 and the second connector 115 of the other collector structure 11 are tilted at a certain angle in the radial direction of the first through hole 1131, by oscillating the first connector 113 relative to the connecting structure 1112 in the radial direction of the first through hole 1131, the first connector 113 and the second connector 115 of the other collector structure 11 can be aligned, so that the first connector 113 and the second connector 115 of the other collector structure 11 can be quickly and accurately connected together.

[0069] Furthermore, the first connector 113 can be axially moved relative to the connecting structure 1112 in the first through hole 1131. When the first connector 113 is connected to the second connector 115 of another flow collector 11, so that the second through hole 1152 is connected to the first through hole 1131 of another flow collector 11, if the axial distance between the first connector 113 and the second connector 115 of the other flow collector 11 is far in the first through hole 1131, the first connector 113 and the second connector 115 of the other flow collector 11 can be quickly and accurately connected together by moving the first connector 113 relative to the connecting structure 1112 in the first through hole 1131 by a certain distance in the first through hole 1131.

[0070] It should be noted that the first connector 113 can be moved relative to the connecting structure 1112 in one or more of the above three modes of movement, depending on the accuracy requirements of the connection between the first connector 113 and the second connector 115 of another current collection structure 11.

[0071] In some embodiments, the connecting structure 1112 may include a limiting member 1113 connected to the collector 110. The limiting member 1113 is located on the side of the connecting portion 1132 away from the collector 110. The limiting member 1113 is used to abut against the side of the connecting portion 1132 away from the collector 110 so that the connecting portion 1132 and the collector 110 clamp the sealing ring 1141.

[0072] Therefore, the limiting member 1113 can apply a thrust to the connecting part 1132, causing the connecting part 1132 to clamp the sealing ring 1141 with the current collector 110. Moreover, the connecting part 1132 can also move and swing radially relative to the connecting structure 1112 in the first through hole 1131 of the first connector 113, and can also move a certain distance axially along the first through hole 1131, so that the first connector 113 can move and swing radially relative to the connecting structure 1112 in the first through hole 1131, and can also move axially along the first through hole 1131.

[0073] In some embodiments, the connecting structure 1112 may further include a connecting protrusion 1115 protruding from the collecting structure 11 along the second direction Y. The connecting protrusion 1115 surrounds and forms a groove 1116. The bottom surface of the groove 1116 has an interface 1119 communicating with the collecting cavity 1110. The connecting part 1132 is at least partially accommodated in the groove 1116. The first through hole 1131 communicates with the interface 1119. The limiting member 1113 is connected to the connecting protrusion 1115, so that the connection between the limiting member 1113 and the collecting fluid 110 is more convenient. The limiting member 1113 can be located on the side of the connecting part 1132 of the first connector 113 away from the collecting fluid 110, so as to stably limit the connecting part 1132.

[0074] The limiting member 1113 can be welded or bonded to the connecting protrusion 1115 to increase the connection strength between the limiting member 1113 and the connecting protrusion 1115 and simplify the structure. Of course, the limiting member 1113 can also be connected to the connecting protrusion 1115 by means of screw fixing, snap-fit, etc.

[0075] Specifically, the connecting protrusion 1115 is an annular protrusion surrounding the first connector 113. The connecting portion 1132 is accommodated within the groove 1116 of the connecting protrusion 1115. Axially, the thickness of the connecting portion 1132 is less than the depth of the groove 1116 in the first through hole 1131 of the first connector 113. The limiting member 1113 is an annular plate-shaped structure surrounding the first connector 113. The outer edge of the limiting member 1113 is connected to the end of the connecting protrusion 1115 away from the current collector 110, and covers the groove 1116 formed by the connecting protrusion 1115.

[0076] In some embodiments, the limiting member 1113 may be disposed around the first connector 113. This allows the limiting member 1113 to have a larger area to abut against the surface of the connecting portion 1132 on the side opposite to the current collector 110, making the limiting member 1113 abut against the first connector 113 more stably.

[0077] The limiting member 1113 has a clearance hole 1114 for the first connector 113 to pass through. The first connector 113 includes a mating section 1136 located within the clearance hole 1114, and the inner diameter of the clearance hole 1114 is larger than the outer diameter of the mating section 1136. Thus, the clearance hole 1114 has space for the mating section 1136 to move and swing radially in the first through hole 1131, thereby allowing the first connector 113 to move and swing radially relative to the connecting structure 1112 in the first through hole 1131.

[0078] In some embodiments, the outer diameter of the connecting portion 1132 may be larger than the inner diameter of the clearance hole 1114. This allows the limiting member 1113 to more stably abut against the side of the connecting portion 1132 away from the current collector 110, preventing the connecting portion 1132 from coming out of the clearance hole 1114.

[0079] In some embodiments, the connecting portion 1132 can be located at the end of the first connector 113 near the current collector 110, and the first through hole 1131 can penetrate the connecting portion 1132; the sealing ring 1141 is located between the connecting portion 1132 and the current collector 110, and the connecting portion 1132 and the current collector 110 clamp the sealing ring 1141. By clamping the sealing ring 1141 between the connecting portion 1132 and the first plate, the gap between the first connector 113 and the first plate can be effectively sealed.

[0080] In some embodiments, the compression ratio of the sealing ring 1141 can be greater than or equal to 10% and less than or equal to 50%, which enables the sealing ring 1141 to have a high sealing effect and sealing stability.

[0081] Specifically, the compression ratio of the sealing ring 1141 can be greater than or equal to 15% and less than or equal to 30% to improve its sealing effect and extend its sealing time. When the sealing ring 1141 is compressed by the first connector 113 and the collector 110, the compression ratio of the sealing ring 1141 is between 15% and 30%, enabling the sealing ring 1141 to effectively seal the space between the first connector 113 and the collector 110 for a long period. The specific compression ratio of the sealing ring 1141 can be 18%, 20%, 23%, 26%, 29%, etc.

[0082] In some embodiments, the surface roughness Ra of the contact surface of the current collector 110 that contacts the sealing ring 1141 can be less than or equal to 0.8 μm, so that the sealing ring 1141 can move more easily with the first connector 113 relative to the current collector 110, thereby ensuring the sealing stability between the first connector 113 and the current collector 110 when the first connector 113 moves relative to the current collector 110. Specifically, the surface roughness Ra of the contact surface of the current collector 110 that contacts the sealing ring 1141 can be 0.76 μm, 0.72 μm, 0.7 μm, 0.65 μm, 0.5 μm, 0.3 μm, etc., and is not limited here.

[0083] In some embodiments, a first engaging portion 1123 may be provided on the side of the limiting member 1113 facing away from the current collector 110, and a second engaging portion 1154 may be provided on the side of the current collector 110 facing away from the first connector 113. The second engaging portion 1154 is used to engage with the first engaging portion 1123 of another current collector structure 11 to limit the relative movement distance of the two current collector structures 11 in the second direction Y. This makes the connection between the first connector 113 and the second connector 115 of the other current collector structure 11 more stable, reducing the risk of the two current collector structures 11 moving away from each other in the second direction Y and thus separating. Furthermore, by providing the first engaging portion 1123 on the side of the limiting member 1113 facing away from the current collector 110, the space occupied by the current collector 110 and the types of components can be reduced, which is beneficial to improving the integration of the current collector structure 11.

[0084] The first engaging portion 1123 may include a first sub-engaging portion 1124, and the second engaging portion 1154 may include two second sub-engaging portions 1155 spaced apart along the second direction Y. The first sub-engaging portion 1124 is located between the two second sub-engaging portions 1155, and the two second sub-engaging portions 1155 abut against the first sub-engaging portion 1124 to limit the relative movement distance of the two current-collecting structures 11 in the second direction Y. In the second direction Y, the distance between the two second sub-engaging portions 1155 is greater than the width of the first sub-engaging portion 1124. Therefore, the first sub-engaging portion 1124 can move a certain distance between the two second sub-engaging portions 1155 along the second direction Y, which helps to reduce the assembly accuracy requirements of the two current-collecting structures 11 in the second direction Y.

[0085] Specifically, the distance by which the first sub-clamping part 1124 can move between the two second sub-clamping parts 1155 along the second direction Y is greater than or equal to 1 mm. That is, the distance between the first sub-clamping part 1124 and the two second sub-clamping parts 1155 in the second direction Y is a and b respectively, and a+b≥1 mm, thereby reducing the assembly accuracy requirements of the two current collection structures 11 in the second direction Y.

[0086] The distance by which the first sub-connector 1124 can move along the second direction Y between the two second sub-connectors 1155 can be 1.5mm, 2mm, 2.2mm, 2.7mm, 3mm, etc., and is not limited here.

[0087] Specifically, there are two first engaging portions 1123. The two first engaging portions 1123 are arranged circumferentially along the first through hole 1131. There are also two second engaging portions 1154. The two second engaging portions 1154 are used to engage one-to-one with the two first engaging portions 1123 of another current collecting structure 11, thereby limiting the relative movement distance of the two current collecting structures 11 in the second direction Y.

[0088] The first locking portion 1123 includes a first protrusion 1125 extending from the limiting member 1113 along the second direction Y, and a first sub-locking portion 1124 connected to one end of the first protrusion 1125 along the second direction Y. The second locking portion 1154 includes a second protrusion 1156 extending in the opposite direction Y from the second connector 115 or the current collector 110, wherein one second sub-locking portion 1155 is located at the end of the second protrusion 1156 away from the current collector 110, and the other second sub-locking portion 1155 is located at the end of the second connector 115 away from the current collector 110.

[0089] In some embodiments, such as Figure 3As shown, a positioning part 1138 is also provided on the outer periphery of the limiting member 1113. A positioning groove 1139 is formed on the side of the current collector 110 facing the first connector 113. The positioning part 1138 is inserted into the positioning groove 1139 to position the limiting member 113 and restrict the limiting member 1113 from rotating around the first connector 113 relative to the current collector 110, so that the position of the limiting member 1113 is more stable, which is conducive to improving the assembly and fixing efficiency of the limiting member 1113.

[0090] This application also provides a temperature regulating component, which includes a current collection structure. The specific structure of the current collection structure is as described in the above embodiments. Since this temperature regulating component adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0091] like Figure 1 and Figure 2 As shown, the temperature regulating assembly 10 includes a temperature regulating plate 12 and a flow collecting structure 11. The temperature regulating plate 12 has a flow channel 121. The structure of the flow collecting structure 11 can refer to the above embodiments, and will not be repeated here. One end of the temperature regulating plate 12 is connected to the flow collecting body 110 of the flow collecting structure 11, so that the flow channel 121 of the temperature regulating plate 12 is connected to the flow collecting cavity 1110 of the flow collecting body 110 of the flow collecting structure 11.

[0092] This application also provides a battery pack, which includes a temperature regulation component. The specific structure of the temperature regulation component is as described in the above embodiments. Since this battery pack adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0093] Among them, such as Figure 1 As shown, the battery pack 1 includes a cell assembly 2 and a temperature regulation assembly 10. The cell assembly 2 includes multiple rows of cells 20, and the temperature regulation plate 12 of the temperature regulation assembly 10 is disposed between two adjacent rows of cells 20.

[0094] 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 current collection structure, characterized in that, include: A current collector includes a current collection cavity, and one end of the current collector along a first direction has an opening communicating with the current collection cavity; A connector, comprising a channel extending along the first direction, and including a first end and a second end distributed along the first direction, wherein the first end is inserted into the end of the current collector having the opening, so that the current collector cavity communicates with the channel; and the second end is used to connect to a temperature regulating plate, so that the channel communicates with the flow channel within the temperature regulating plate. The current collector is provided with a first limiting part, and the connector is provided with a first abutting part. The first limiting part is located on one side of the first abutting part along the first direction. The first limiting part is used to abut against the first abutting part to restrict the connector from moving relative to the current collector along the first direction.

2. The current collection structure as described in claim 1, characterized in that, The first end is inserted into the opening so that the first end is connected to the end of the current collector that has the opening. The first limiting part protrudes from the inner peripheral surface of the current collector cavity, and the first abutting part protrudes from the outer peripheral surface of the connector. or The end of the current collector with the opening is inserted into the channel so that the first end is connected to the end of the current collector with the opening. The first limiting part protrudes from the outer peripheral surface of the current collector, and the first abutting part protrudes from the inner peripheral surface of the channel.

3. The current collection structure as described in claim 2, characterized in that, The first abutting portion extends circumferentially along the opening; and / or, the first limiting portion extends circumferentially along the opening.

4. The current collection structure as described in claim 1, characterized in that, The connector is provided with a second abutting portion, which is located on one side of the first limiting portion along the first direction. The first limiting portion abuts against the second abutting portion to restrict the connector from moving in the opposite direction relative to the current collector along the first direction; or, The current collector is provided with a second limiting part, and the first abutting part is located on one side of the second limiting part along the first direction. The second limiting part is used to abut against the first abutting part to restrict the reverse movement of the connector relative to the current collector along the first direction.

5. The current collection structure as described in claim 1, characterized in that, The current collector is injection molded to the connector; or, the current collector is bonded to the connector.

6. The current collection structure as described in any one of claims 1 to 5, characterized in that, The current collection structure also includes: A first connector is movably installed on one side of the current collector along the second direction. The first connector includes a first through hole communicating with the current collector cavity. The second direction forms an angle with the first direction. The second connector is located on the side of the current collector opposite to the first connector. The second connector includes a second through hole communicating with the current collector. The second connector is used to connect to the first connector of another current collector structure so that the second through hole communicates with the first through hole of the other current collector structure.

7. The current collection structure as described in claim 6, characterized in that, The first connector includes a guide section extending from one end of the first connector along the second direction toward the current collector, the circumscribed circle diameter of the guide section gradually decreasing along the second direction; and / or, The second through hole includes a guide hole section that extends from the end of the second connector away from the current collector along the second direction, and the inner diameter of the guide hole section gradually decreases along the second direction.

8. The current collection structure as described in claim 7, characterized in that, The first connector can move radially relative to the current collector in the first through hole, and the amount of movement of the first connector relative to the current collector in the first through hole in the first through hole is λ. The difference between the maximum and minimum circumscribed circle radii of the guide segment is X1, where X1 ≥ 0.5λ; and / or, The difference between the maximum and minimum inscribed circle radii of the guide hole section is X2, where X2-0.5λ≥0.5mm.

9. The current collection structure as described in claim 6, characterized in that, The current collector has a connecting structure on one side along the second direction. The first connector includes a connecting part, which is movably connected to the connecting structure. A sealing ring is provided between the first connector and the current collector. The sealing ring surrounds the first through hole. The first connector and the current collector clamp the sealing ring to form a sealing and protective structure.

10. The current collection structure as described in claim 9, characterized in that, The first connector is movable radially relative to the connection structure in the first through hole; and / or, The first connector can swing radially relative to the connection structure in the first through hole; and / or, The first connector is axially movable relative to the connecting structure in the first through hole.

11. The current collection structure as described in claim 10, characterized in that, The connection structure includes a limiting member connected to the manifold. The limiting member is located on the side of the connection portion away from the manifold. The limiting member is used to abut against the side of the connection portion away from the manifold so that the connection portion and the manifold clamp the sealing ring.

12. The current collection structure as described in claim 11, characterized in that, The connecting structure further includes a connecting protrusion protruding from one side of the flow collection structure along the second direction. The connecting protrusion surrounds and forms a groove. The bottom surface of the groove has an interface communicating with the flow collection cavity. The connecting part is at least partially accommodated in the groove. The first through hole communicates with the interface. The limiting member is connected to the connecting protrusion.

13. The current collection structure as described in claim 12, characterized in that, The limiting member is arranged around the first connector; the limiting member has a clearance hole for the first connector to pass through; The first connector includes a mating section located within the clearance hole, wherein the inner diameter of the clearance hole is larger than the outer diameter of the mating section; and the outer diameter of the connecting portion is larger than the inner diameter of the clearance hole.

14. The current collection structure as described in claim 11, characterized in that, The limiting member has a first locking part on the side away from the current collector, and the current collector has a second locking part on the side away from the first connector. The second locking part is used to lock with the first locking part of another current collector structure to limit the relative movement distance of the two current collector structures in the second direction.

15. The current collection structure as described in claim 14, characterized in that, The first latching portion includes a first sub-latching portion, and the second latching portion includes two second sub-latching portions spaced apart along the second direction. The first sub-latching portion is located between the two second sub-latching portions, and the two second sub-latching portions are used to abut against the first sub-latching portion to limit the relative movement distance of the two current collection structures in the second direction. In the second direction, the distance between the two second sub-clamping portions is greater than the width of the first sub-clamping portion.

16. The current collection structure as described in claim 9, characterized in that, The connecting part is located at the end of the first connector near the current collector, and the first through hole penetrates the connecting part; the sealing ring is located between the connecting part and the current collector, and the connecting part and the current collector clamp the sealing ring.

17. The current collection structure as described in claim 9, characterized in that, The compression ratio of the sealing ring is greater than or equal to 10% and less than or equal to 50%.

18. The current collection structure as described in claim 17, characterized in that, The compression ratio of the sealing ring is greater than or equal to 15% and less than or equal to 30%.

19. A temperature regulating component, characterized in that, include: A temperature regulating plate, wherein a flow channel is provided inside the temperature regulating plate; A flow collection structure, wherein the flow collection structure is the flow collection structure according to any one of claims 1 to 18, wherein one end of the temperature regulating plate is connected to the second end of the connector of the flow collection structure so that the channel of the connector is connected to the flow channel in the temperature regulating plate.

20. A battery pack, characterized in that, include: Battery cell assembly, including multiple rows of battery cells; A temperature regulating component, wherein the temperature regulating component is the temperature regulating component of claim 19, and the temperature regulating plate of the temperature regulating component is disposed between two adjacent rows of the battery cells.

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