Connector assembly, temperature adjusting system and battery pack

Abstract

The utility model provides a connector assembly, a temperature adjusting system and a battery pack, the connector assembly comprises a pipe body, a connector and a sealing piece, a flow channel extending in the length direction of the pipe body is arranged in the pipe body, an interface communicated with the flow channel is formed in the peripheral surface of the pipe body, and a connecting structure is further arranged on the peripheral surface of the pipe body; a through hole penetrating in the length direction of the connector is formed in the connector, and the connector is movably connected with the connecting structure so that one end of the through hole can be communicated with the connector. The sealing piece comprises a sealing ring which is arranged between the pipe body and the connector and surrounds the connector or the through hole, and the pipe body and the connector clamp the sealing ring to form a sealing protection structure. The connector of the connector assembly can move relative to the connecting structure, the position of the connector can be adaptively adjusted according to the position of the communicating piece, the requirement angle for the assembly precision of the connector and the communicating piece is low, and the cost and the assembly efficiency of the temperature adjusting system can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a connector assembly, a temperature regulation system, and a battery pack. Background Technology

[0002] In related technologies, the temperature regulation system of a battery pack typically includes a connector assembly, a connecting member, and a temperature regulating plate. The connector assembly is connected to the temperature regulating plate through the connecting member, so that the temperature regulating medium of the connector assembly flows to the temperature regulating plate through the connecting member, or the temperature regulating medium in the temperature regulating plate flows back to the connector assembly through the connecting member.

[0003] However, when connecting the connector assembly and the connecting part, the assembly accuracy requirements for the connector assembly and the connecting part are high in order to ensure the sealing performance between them. This is especially true when the temperature control system has a compact structure, which will affect the cost and assembly efficiency of the temperature control system. Utility Model Content

[0004] The embodiments of this application provide a connector assembly, a temperature regulation system, and a battery pack, which can improve the technical problem of high assembly accuracy requirements when connecting the connector assembly and the docking assembly of the temperature regulation system, which affects the cost and assembly efficiency of the temperature regulation system.

[0005] In a first aspect, embodiments of this application provide a connector assembly, comprising:

[0006] The tube body has a flow channel extending along its length, and an interface communicating with the flow channel is opened on the outer peripheral surface of the tube body. The outer peripheral surface of the tube body is also provided with a connecting structure.

[0007] A connector, wherein the connector has a through hole extending along its length, and the connector is connected to the connecting structure so that one end of the through hole communicates with the interface;

[0008] The sealing element includes a sealing ring disposed between the pipe body and the connector, the sealing ring being arranged around the interface or the through hole, and the pipe body and the connector clamping the sealing ring to form a sealing and protective structure.

[0009] In one embodiment, the connector is movable radially relative to the connection structure in the through hole.

[0010] In one embodiment, the connector includes a connecting portion movably connected to the connecting structure, the connecting portion being movable radially relative to the connecting structure in the through hole;

[0011] The through hole penetrates the connecting part; the sealing ring is located between the connecting part and the outer peripheral surface of the tube body, and the connecting part and the outer peripheral surface of the tube body clamp the sealing ring.

[0012] In one embodiment, the length direction of the through hole and the length direction of the flow channel form an angle; the connecting portion is located at the end of the connector near the tube body.

[0013] In one embodiment, the connecting portion has a first receiving groove on the side facing the tube body, the first receiving groove is arranged around the through hole, and a portion of the sealing ring is received in the receiving groove.

[0014] In one embodiment, the sealing element includes a limiting portion and a connecting section. The limiting portion is located on the side of the connecting portion opposite to the sealing ring. One end of the connecting section is connected to the limiting portion, and the other end of the connecting section is connected to the sealing ring.

[0015] In one embodiment, the connecting portion has a through hole extending along the length direction of the through hole, and the connecting segment passes through the through hole.

[0016] In one embodiment, the limiting portion extends circumferentially along the through hole; the number of connecting segments is multiple, and the multiple connecting segments are arranged circumferentially along the through hole.

[0017] In one embodiment, a second receiving groove is provided on the side of the connecting portion away from the sealing ring, and at least a portion of the limiting portion is received in the second receiving groove.

[0018] In one embodiment, the connection structure includes a limiting member connected to the tube body. The limiting member is located on the side of the connection portion away from the tube body and is used to abut against the side of the connection portion away from the tube body so that the sealing ring is clamped between the outer peripheral surface of the connection portion and the tube body.

[0019] In one embodiment, the connection structure further includes a connection protrusion protruding from the outer peripheral surface of the tube body, the connection protrusion forming a groove, the interface being opened on the bottom surface of the groove, the connection portion being at least partially accommodated within the groove, and the limiting member being connected to the connection protrusion.

[0020] In one embodiment, the limiting member is welded to the connecting protrusion.

[0021] In one embodiment, the limiting member is disposed around the connector; the limiting member has a clearance hole for the connector to pass through;

[0022] The 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.

[0023] In one embodiment, the difference between the inner diameter of the clearance hole and the outer diameter of the mating section is greater than or equal to 0.1 mm and less than or equal to 1 mm.

[0024] In one embodiment, the outer diameter of the connecting portion is larger than the inner diameter of the clearance hole.

[0025] In one embodiment, the compression ratio of the sealing ring is greater than or equal to 8% and less than or equal to 42%.

[0026] In one embodiment, the connector is used to connect with a connecting member so that the other end of the through hole communicates with the channel of the connecting member;

[0027] The connector assembly further includes a limiting ring connected to the tube body, the limiting ring being fitted onto the connecting member and limiting the distance the connecting member can move away from the tube body.

[0028] In one embodiment, the inner circumferential surface of the limiting ring is provided with at least one limiting protrusion, which is used to abut against the side of the connecting member away from the tube body to limit the distance the connecting member can move away from the tube body.

[0029] In one embodiment, the outer peripheral surface of the tube body is further provided with at least two retaining protrusions, the at least two retaining protrusions are arranged circumferentially along the interface, the at least two retaining protrusions pass through the limiting ring and engage with the limiting ring.

[0030] In one embodiment, one end of the tube is provided with a snap-fit ​​part, and the other end of the tube is provided with a snap-fit ​​groove. The snap-fit ​​part of the tube is used to snap with the snap-fit ​​groove of another tube, so that one end of the tube is connected to the other end of the other tube, and the channels of the two tubes are connected.

[0031] In one embodiment, the outer circumferential surface of the other end of the tube is further provided with a limiting groove, and the snap-fit ​​portion of the tube is accommodated in the limiting groove of the other tube to restrict the two tubes from rotating relative to each other in the circumferential direction of the channel.

[0032] Secondly, embodiments of this application provide a temperature regulation system, including:

[0033] A connector assembly, as described above, includes a tube body, a connector head, and a seal. The tube body has a flow channel extending along its length, and an interface communicating with the flow channel is opened on its outer circumferential surface. A connecting structure is also provided on the outer circumferential surface of the tube body. The connector head has a through hole extending along its length, and the connector head is movably connected to the connecting structure so that one end of the through hole communicates with the interface. The seal includes a sealing ring disposed between the tube body and the connector head, the sealing ring surrounding the interface or the through hole, and the tube body and the connector head clamping the sealing ring to form a sealing and protective structure.

[0034] A temperature regulating assembly includes a connecting member and a temperature regulating plate that are connected to each other. The connecting member has a channel, and the temperature regulating plate has a flow path that communicates with the channel. The connecting member is connected to a connector of the connector assembly so that the other end of the through hole of the connector communicates with the channel of the connecting member.

[0035] Thirdly, embodiments of this application provide a battery pack including the temperature regulation system described above.

[0036] The beneficial effects of the embodiments of this application are as follows:

[0037] In this embodiment, the connector of the joint assembly is movably connected to the connector of the pipe body, so that one end of the through hole of the connector communicates with the flow channel inside the pipe body through the interface on the outer circumferential surface of the pipe body. When the connector is connected to the connecting member, the temperature regulating medium in the flow channel of the pipe body can sequentially enter the flow path of the temperature regulating plate through the through hole of the connector and the channel of the connecting member. Alternatively, the temperature regulating medium in the flow path of the temperature regulating plate can sequentially flow back to the flow channel of the pipe body through the flow channel of the connecting member and the through hole of the connector.

[0038] Based on this, by surrounding the interface or through hole with a sealing ring, the pipe body and connector clamp the sealing ring to form a sealed protective structure. This allows the sealing ring to seal the pipe body and connector, preventing the temperature regulating medium from leaking out from the gaps between them. Furthermore, when connecting the connector to the connecting piece, the position of the connector can be adaptively adjusted according to the position of the connecting piece, ensuring a precise connection between the connector and the connecting piece. This reduces the assembly precision requirements for the connector and the connecting piece, thus helping to reduce the cost and improve the assembly efficiency of the temperature control system. Attached Figure Description

[0039] 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.

[0040] Figure 1 This is a schematic diagram of the structure of one embodiment of the battery pack provided in this application.

[0041] Figure 2 A schematic diagram of the structure of one embodiment of the connector assembly provided in this application;

[0042] Figure 3 An exploded view of one embodiment of the connector assembly provided in this application;

[0043] Figure 4 A partial cross-sectional view of one embodiment of the structural component provided in this application, wherein the cutting plane is parallel to the length direction of the tube and the connector;

[0044] Figure 5 This is an exploded structural diagram of one embodiment of the connector and seal provided in this application.

[0045] Explanation of reference numerals in the attached figures:

[0046] Battery pack 1; Temperature regulation system 10; Connector assembly 11; Tube body 111; Flow channel 1110; Interface 1111; Connection structure 1112; Limiting member 1113; Clearance hole 1114; Connection protrusion 1115; Groove 1116; Holding protrusion 1117; Slot 1118; Snap-fit ​​part 1119; Snap-fit ​​groove 1120; Limiting groove 1121; Connector head 113; Through hole 1131; Connection part 1132; First receiving groove 1133; Through hole 1134; Second receiving groove 1135; Mating section 1136; Insertion section 1137; Positioning groove 1138; Seal 114; Sealing ring 1141; Limiting part 1142; Connecting section 1143; Sealing ring 115; Limiting ring 116; Limiting protrusion 1161; Temperature regulating assembly 12; Connecting part 121; Temperature regulating plate 122; Battery cell 20. Detailed Implementation

[0047] 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.

[0048] This application provides a connector assembly, a temperature regulation system, and a battery pack. These will be described in detail below.

[0049] Figure 1 This is a schematic diagram of the structure of one embodiment of the battery pack provided in this application. Figure 1 As shown, the battery pack 1 includes a temperature regulation system 10 and multiple battery cells 20. The temperature regulation system 10 is used to regulate the temperature of the multiple battery cells 20 so that they are at a suitable operating temperature. The temperature regulation system 10 can heat the multiple battery cells 20 or cool them down, depending on the ambient temperature of the internal thermometer of the battery pack 1.

[0050] The temperature control system 10 includes a connector assembly 11 and a temperature control assembly 12, which are connected to allow the temperature control medium to flow from the connector assembly 11 to the temperature control assembly and exchange heat with the battery cell 20 to cool or heat the battery cell 20. The temperature control medium can also flow back from the temperature control assembly 12 to the connector assembly 11, achieving recycling of the temperature control medium. The temperature control medium can be coolant, refrigerant, etc., and is not limited here.

[0051] Continue to refer to Figure 1 The temperature regulating assembly 12 includes a connecting member 121 and a temperature regulating plate 122 that are connected to each other. The temperature regulating plate 122 is used to contact the battery cell 20 directly or through a heat-conducting medium so that the battery cell 20 and the temperature regulating plate 122 can quickly exchange heat.

[0052] The connecting member 121 has a channel (not shown in the figure), and the temperature regulating plate 122 has a flow path (not shown in the figure) communicating with the channel. The connecting member 121 is connected to the connector 113 of the connector assembly 11, so that the other end of the through hole 1131 of the connector 113 communicates with the channel of the connecting member 121. Thus, the temperature regulating medium in the connector assembly 11 can flow into the flow path of the temperature regulating plate 122 through the channel of the connecting member 121 and exchange heat with the temperature regulating plate 122, causing the temperature of the temperature regulating plate 122 to decrease or increase, thereby cooling or heating the battery cell 20. Alternatively, the temperature regulating medium in the flow path of the temperature regulating plate 122 can flow back into the connector assembly 11 through the channel of the connecting member 121 to achieve the recycling of the temperature regulating medium.

[0053] like Figure 1 As shown, there are multiple temperature regulating components 12. The temperature regulating plates 122 of the multiple temperature regulating components 12 are arranged side-by-side with intervals. Multiple battery cells 20 are disposed between two adjacent temperature regulating plates 122. The multiple battery cells 20 between two adjacent temperature regulating plates 122 are arranged along the length direction of the temperature regulating plate 122. The side of the temperature regulating plate 122 is in direct contact with the outer peripheral surface of the battery cell 20, or through a heat-conducting medium, so that the temperature regulating plate 122 can quickly exchange heat with the outer peripheral surface of the battery cell 20.

[0054] Connector assembly 11 can be connected to one or more temperature regulating assemblies 12. Specifically, there are multiple connector assemblies 11. A portion of the connector assemblies 11 are connected in series along the distribution direction of the temperature regulating assemblies 12 to form an input pipeline. The multiple connector assemblies 11 of the input pipeline are connected to one or more temperature regulating assemblies 12 respectively, so that the temperature regulating medium in the input pipeline is diverted to the flow path of the temperature regulating plate 122 through the connecting member 121 of the multiple temperature regulating assemblies 12 to cool or heat the multiple battery cells 20. Another portion of the connector assemblies 11 are connected in series along the distribution direction of the temperature regulating assemblies 12 to form an output pipeline. The multiple connector assemblies 11 of the output pipeline are connected to one or more temperature regulating assemblies 12 respectively, so that the temperature regulating medium in the flow path of the temperature regulating plate 122 of the multiple temperature regulating assemblies 12 can flow back to the output pipeline through the connecting member 121 to recover the temperature regulating medium. After being cooled or heated externally, the temperature regulating medium can flow back into the multiple temperature regulating plates 122 through the input pipeline to cool or heat the battery cells 20 through the temperature regulating plates 122.

[0055] like Figure 2 and Figure 3As shown, the connector assembly 11 may include a tube body 111 and a connector head 113. The tube body 111 has a flow channel 1110 inside, and an interface 1111 communicating with the flow channel 1110 is opened on the outer peripheral surface of the tube body 111. A connecting structure 1112 is also provided on the outer peripheral surface of the tube body 111. The flow channel 1110 inside the tube body 111 can extend along the length of the tube body 111. The interface 1111 passes through the tube wall of the tube body 111 and communicates with the flow channel 1110.

[0056] The connector 113 has a through hole 1131 and is connected to the connecting structure 1112 so that one end of the through hole 1131 communicates with the interface 1111. The through hole 1131 can penetrate the connector 113 along its length.

[0057] Therefore, the connector assembly 11 can be connected to the connecting member 121 via the connector 113, so that the other end of the through hole 1131 of the connector 113 communicates with the channel of the connecting member 121. The temperature regulating medium in the flow channel 1110 of the pipe body 111 can sequentially enter the flow path of the temperature regulating plate 122 through the through hole 1131 of the connector 113 and the channel of the connecting member 121. Alternatively, the temperature regulating medium in the flow path of the temperature regulating plate 122 can also sequentially flow back to the flow channel 1110 of the pipe body 111 through the flow channel 1110 of the connecting member 121 and the through hole 1131 of the connector 113.

[0058] In some embodiments, such as Figures 3 to 5 As shown, the connector 113 can be movably connected to the connecting structure 1112, thereby making the position of the connector 113 relative to the pipe body 111 and the connecting structure 1112 adjustable.

[0059] The connector assembly 11 provided in this embodiment connects the connector 113 to the connector of the pipe body 111, so that one end of the through hole 1131 of the connector 113 communicates with the flow channel 1110 inside the pipe body 111 through the interface 1111 on the outer peripheral surface of the pipe body 111. When the connector 113 is connected to the connecting member 121, the temperature regulating medium in the flow channel 1110 of the pipe body 111 can sequentially enter the flow path of the temperature regulating plate 122 through the through hole 1131 of the connector 113 and the channel of the connecting member 121. Alternatively, the temperature regulating medium in the flow path of the temperature regulating plate 122 can sequentially flow back to the flow channel 1110 of the pipe body 111 through the flow channel 1110 of the connecting member 121 and the through hole 1131 of the connector 113.

[0060] Based on this, by allowing the connector 113 to move relative to the connecting structure 1112, and by having the sealing ring 1141 of the sealing element 114 surround the interface 1111 or the through hole 1131, the pipe body 111 and the connector 113 clamp the sealing ring 1141 to form a sealed protective structure. This allows the sealing ring 1141 to seal the pipe body 111 and the connector 113, preventing the temperature regulating medium from leaking out from the gap between the pipe body 111 and the connector 113. Moreover, when connecting the connector 113 to the connecting element 121, the position of the connector 113 can be adaptively adjusted according to the position of the connecting element 121, ensuring a precise connection between the connector 113 and the connecting element 121. This reduces the assembly accuracy requirements of the connector 113 and the connecting element 121, which helps to reduce the cost and improve the assembly efficiency of the temperature regulating system 10.

[0061] The connector 113 can be moved radially relative to the connecting structure 1112 in the through hole 1131. Furthermore, the connector assembly 11 includes a seal 114, which includes a sealing ring 1141 disposed between the tube body 111 and the connector 113. The sealing ring 1141 surrounds the interface 1111 or the through hole 1131, and the tube body 111 and the connector 113 clamp the sealing ring 1141 to form a sealed protective structure.

[0062] When connecting the connector 113 to the connecting member 121, especially when the connector assembly 11 includes multiple connectors 113 and multiple connectors 113 are connected to different connecting members 121, the radial position of the connector 113 in the through hole 1131 can be adjusted according to the position of the connecting member 121, so that the connector 113 is accurately connected to the connecting member 121. This reduces the assembly accuracy requirements of the connector 113 and the connecting member 121, which is beneficial to reducing the cost and assembly efficiency of the temperature control system 10.

[0063] Of course, the connector 113 can be moved relative to the connecting structure 1112 along the length of the through hole 1131 to adjust the position of the connector 113 relative to the pipe body 111 and the connecting structure 1112 in the length of the through hole 1131. Alternatively, the connector 113 can be oscillated relative to the connecting structure 1112 to adjust the deflection angle of the connector 113 relative to the pipe body 111 and the connecting structure 1112.

[0064] like Figure 3 and Figure 4 As shown, the connector 113 includes a connecting portion 1132 that is movably connected to the connecting structure 1112. The connecting portion 1132 can move radially relative to the connecting structure 1112 in the through hole 1131, so that the connector 113 can move radially relative to the connecting structure 1112 in the through hole 1131.

[0065] In some embodiments, the through hole 1131 of the connector 113 can penetrate the connecting portion 1132. The sealing ring 1141 is located between the connecting portion 1132 and the outer peripheral surface of the tube body 111, and the sealing ring 1141 is clamped between the outer peripheral surfaces of the connecting portion 1132 and the tube body 111. Thus, the sealing ring 1141 of the sealing member 114 can more effectively seal the connector 113 and the tube body 111, preventing the temperature regulating medium from leaking out from the gap between the connecting portion 1132 and the outer peripheral surface of the tube body 111.

[0066] Specifically, the length direction of the through hole 1131 of the connector 113 forms an angle with the length direction of the flow channel 1110 of the tube body 111. The connecting part 1132 is located at the end of the connector 113 near the tube body 111. Thus, by clamping the sealing member 114 between the connecting part 1132 and the outer peripheral surface of the tube body 111, the gap between the connector 113 and the outer peripheral surface of the tube body 111 can be effectively sealed.

[0067] In some embodiments, such as Figure 4 As shown, a first receiving groove 1133 can be provided on the side of the connecting part 1132 facing the pipe body 111. The first receiving groove 1133 is arranged around the through hole 1131, and a part of the sealing ring 1141 is received in the receiving groove. Thus, the receiving groove can play a certain positioning role for the sealing ring 1141, making the position of the sealing ring 1141 relative to the connecting part 1132 more stable, which is beneficial to improving the sealing stability of the sealing ring 1141.

[0068] The first receiving groove 1133 is an annular groove surrounding the through hole 1131. A portion of the sealing ring 1141 is accommodated within the first receiving groove 1133, and the sealing ring 1141 contacts the bottom surface of the first receiving groove 1133 to increase the volume of the sealing ring 1141 within the first receiving groove 1133, making the position of the sealing ring 1141 relative to the connecting part 1132 more stable. A portion of the sealing ring 1141 protrudes from the surface of the connecting part 1132 facing the tube body 111 and abuts against the outer peripheral surface of the tube body 111 to seal the connecting part 1132 and the outer peripheral surface of the tube body 111.

[0069] In some embodiments, the compression ratio of the sealing ring 1141 can be greater than or equal to 8% and less than or equal to 42%, so that the sealing ring 1141 has a better sealing effect while being less prone to permanent deformation, thus making the sealing ring 1141 more stable.

[0070] Understandably, if the compression ratio of the sealing ring 1141 is too small, for example, less than 8%, insufficient contact pressure between the sealing ring 1141 and the pipe body 111 or connector 113 may occur, causing the pressure of the temperature regulating medium to exceed the contact pressure between the sealing ring 1141 and the pipe body 111 or connector 113, resulting in leakage. Conversely, if the compression ratio of the sealing ring 1141 is too large, for example, greater than 42%, excessive pressure may occur, leading to permanent deformation and stress relaxation. This causes the sealing ring 1141 to lose its elastic recovery ability, resulting in a decrease in sealing pressure after long-term use, and consequently, a reduction in the sealing effect of the sealing ring 1141.

[0071] Therefore, by making the compression ratio of the sealing ring 1141 greater than or equal to 8% and less than or equal to 42%, the sealing ring 1141 can have a high sealing effect and sealing stability.

[0072] The compression ratio of the sealing ring 1141 can be greater than or equal to 8% and less than or equal to 38% to ensure better sealing performance and longer service life. The compression ratio of the sealing ring 1141 can be 10%, 15%, 23%, 29%, 34%, etc.

[0073] In some embodiments, such as Figure 4 and Figure 5 As shown, the sealing element 114 can include a limiting portion 1142 and a connecting section 1143. The limiting portion 1142 is located on the side of the connecting portion 1132 opposite to the sealing ring 1141. One end of the connecting section 1143 is connected to the limiting portion 1142, and the other end of the connecting section 1143 is connected to the sealing ring 1141. Therefore, the limiting portion 1142 can apply a tensile force to the sealing ring 1141 through the connecting section 1143, making the sealing ring 1141 fit more tightly with the limiting portion 1142, which helps to improve the sealing effect of the sealing ring 1141 between the connecting portion 1132 and the outer peripheral surface of the tube body 111.

[0074] Furthermore, it can make the connection between the seal 114 and the connecting part 1132 more stable, and the seal 114 is less likely to fall off the connecting part 1132. The connector 113 and the seal 114 can be assembled together, which makes the assembly of the connector assembly 11 more convenient and the assembly efficiency higher.

[0075] The connecting portion 1132 may have a through hole 1134 extending along the length of the through hole 1131, through which the connecting section 1143 passes. This makes the connection between the seal 114 and the connecting portion 1132 more stable, and the seal 114 less likely to fall off the connecting portion 1132.

[0076] In some embodiments, the limiting portion 1142 may extend circumferentially along the through hole 1131. Multiple connecting segments 1143 are provided circumferentially along the through hole 1131. This allows the limiting portion 1142 to be connected to the sealing ring 1141 at different locations circumferentially along the through hole 1131 via the connecting segments 1143, facilitating a more stable fit between the sealing ring 1141 and the side of the connecting portion 1132 facing the tube body 111. Furthermore, it also makes the connection between the seal 114 and the connecting portion 1132 more stable.

[0077] In some embodiments, a second receiving groove 1135 may be provided on the side of the connecting portion 1132 away from the sealing ring 1141, and at least a portion of the limiting portion 1142 may be received in the second receiving groove 1135. Thus, the second receiving groove 1135 may play a certain limiting role on the limiting portion 1142, making the position of the limiting portion 1142 relative to the connecting portion 1132 more stable.

[0078] Specifically, the second receiving groove 1135 is an annular groove extending circumferentially along the through hole 1131. The limiting part 1142 is an annular structure extending circumferentially along the through hole 1131. The limiting part 1142 is accommodated within the second receiving groove 1135. The thickness of the limiting part 1142 along the length of the through hole 1131 is less than or equal to the depth of the second receiving groove 1135. A plurality of through holes 1134 are evenly distributed circumferentially along the through hole 1131, and each through hole 1131 corresponds to a connecting section 1143. The sealing element 114 can be injection molded onto the connecting part 1132 of the connector 113 by injection molding, so as to facilitate the processing of the sealing element 114.

[0079] In some embodiments, such as Figures 2 to 4 As shown, the connecting structure 1112 includes a limiting member 1113 connected to the tube body 111. The limiting member 1113 is located on the side of the connecting portion 1132 opposite to the tube body 111. The limiting member 1113 abuts against the side of the connecting portion 1132 opposite to the tube body 111, so that the sealing ring 1141 is clamped between the connecting portion 1132 and the outer peripheral surface of the tube body 111. Thus, a thrust can be applied to the connecting portion 1132 by the limiting member 1113, causing the connecting portion 1132 to clamp the sealing ring 1141 between the outer peripheral surface of the tube body 111. Furthermore, the connecting portion 1132 can also move radially relative to the support member in the through hole 1131, so that the connector 113 can move radially relative to the connecting structure 1112 in the through hole 1131.

[0080] The limiting member 1113 can be arranged around the connector 113. This allows the limiting member 1113 to have a larger area to abut against the surface of the connector 1132 on the side opposite to the tube body 111, making the limiting member 1113 abut against the connector 1132 more stably.

[0081] In some embodiments, the limiting member 1113 has a clearance hole 1114 for the connector 113 to pass through. The connector 113 includes a mating section 1136 located within the clearance hole 1114, the inner diameter of the clearance hole 1114 being larger than the outer diameter of the mating section 1136. Thus, the clearance hole 1114 has space within it for the mating section 1136 to move radially within the through hole 1131, thereby allowing the connector 113 to move radially relative to the connecting structure 1112 within the through hole 1131.

[0082] Specifically, the difference between the inner diameter of the clearance hole 1114 and the outer diameter of the mating section 1136 can be greater than or equal to 0.1 mm and less than or equal to 1 mm. This ensures that the distance the connector 113 can move radially relative to the connecting structure 1112 in the through hole 1131 is moderate. This avoids the connector 113 moving too little radially relative to the connecting structure 1112 in the through hole 1131, which would prevent it from connecting to the connecting member 121, or the connector 113 moving too much radially relative to the connecting structure 1112 in the through hole 1131, which would affect the sealing effect of the sealing ring 1141. The specific difference between the inner diameter of the clearance hole 1114 and the outer diameter of the mating section 1136 can be 0.2 mm, 0.3 mm, 0.5 mm, 0.65 mm, 0.8 mm, etc., depending on the structure of the connector assembly 11.

[0083] 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 tube body 111, preventing the connecting portion 1132 from coming out of the clearance hole 1114.

[0084] In some embodiments, such as Figure 3 and Figure 4 As shown, the connecting structure 1112 also includes a connecting protrusion 1115 protruding from the outer peripheral surface of the tube body 111. The connecting protrusion 1115 surrounds and forms a groove 1116, and the interface 1111 is opened on the bottom surface of the groove 1116. The connecting part 1132 of the connector 113 is at least partially accommodated in the groove 1116 so that one end of the through hole 1131 communicates with the interface 1111.

[0085] The limiting member 1113 can be connected to the connecting protrusion 1115 to facilitate the connection between the limiting member 1113 and the pipe body 111. The limiting member 1113 can be located on the side of the connecting portion 1132 of the connector 113 facing away from the pipe body 111, thus stably limiting the connection portion 1132. The limiting member 1113 can also be welded to the connecting protrusion 1115 for a stronger connection. Alternatively, the limiting member 1113 can be connected to the connecting protrusion 1115 by means of adhesive, screw fixing, or snap-fit.

[0086] Specifically, the connecting protrusion 1115 is an annular protrusion surrounding the circumference of the connector. The connecting portion 1132 is accommodated within the groove 1116 of the connecting protrusion 1115. In the extending direction of the through hole 1131 of the connector 113, the thickness of the connecting portion 1132 is less than the depth of the groove 1116. The limiting member 1113 is an annular plate-shaped structure surrounding the connector 113. The outer edge of the limiting member 1113 is connected to the end of the connecting protrusion 1115 away from the tube body 111, and covers the groove 1116 formed by the connecting protrusion 1115.

[0087] like Figure 3 and Figure 4 As shown, the connector 113 also includes an insertion section 1137 located at the end of the mating section 1136 away from the connecting portion 1132. At least one sealing ring 115 is fitted around the outer periphery of the insertion section 1137. The insertion section 1137 of the connector 113 is used to insert into the channel of the connecting member 121, so that the through hole 1131 of the connector 113 communicates with the channel of the connecting member 121. The sealing ring 115 abuts against the inner circumferential surface of the channel to seal the connector and the connecting member 121, preventing the temperature regulating medium from leaking out from the gap between the connector and the connecting member 121.

[0088] The insertion section 1137 comprises multiple sealing rings 115, which are spaced apart along its length. A positioning groove 1138 is also formed on the outer circumferential surface of the insertion section 1137, extending circumferentially. The sealing rings 115 are installed in the positioning grooves 1138 to ensure a stable position of the sealing rings 115 relative to the insertion section 1137.

[0089] In some embodiments, the connector 113 is used to connect with the connector 121 so that the other end of the through hole 1131 communicates with the channel of the connector 121. For example, Figures 2 to 4As shown, the connector assembly 11 may further include a limiting ring 116 connected to the pipe body 111. The limiting ring 116 is used to fit over the connecting member 121 and limit the distance that the connecting member 121 can move away from the pipe body 111. This makes the connection between the connecting member 121 and the connector 113 more stable, preventing the connecting member 121 from moving away from the pipe body 111 and causing the connecting member 121 and connector 113 to detach.

[0090] The inner circumferential surface of the limiting ring 116 may be provided with at least one limiting protrusion 1161, which abuts against the side of the connecting member 121 away from the tube body 111 to limit the distance the connecting member 121 can move away from the tube body 111. By having the limiting protrusion 1161 abut against the side of the connecting member 121 away from the tube body 111, the continued movement of the connecting member 121 away from the tube body 111 can be stably limited.

[0091] In some embodiments, at least two retaining protrusions 1117 may be provided on the outer peripheral surface of the tube body 111. The at least two retaining protrusions 1117 are arranged circumferentially along the interface 1111 and pass through the limiting ring 116 and engage with the limiting ring 116. This makes the connection between the limiting ring 116 and the tube body 111 more stable and convenient.

[0092] Specifically, the outer circumferential surface of the tube body 111 is provided with two retaining protrusions 1117. The two retaining protrusions 1117 are distributed on both sides of the connector 113. A retaining groove 1118 is formed on the side of the two retaining protrusions 1117 that are facing away from each other. After the two retaining protrusions 1117 pass through the limiting ring 116, a part of the limiting ring 116 is located in the retaining groove 1118, so that the limiting ring 116 is engaged with the two retaining protrusions 1117. The inner circumferential surface of the limiting ring 116 is provided with two limiting protrusions 1161. The two limiting protrusions 1161 are arranged opposite to each other and are located between the two retaining protrusions 1117.

[0093] In some embodiments, such as Figure 2 and Figure 3 As shown, a snap-fit ​​part 1119 can be provided at one end of the tube body 111, and a snap-fit ​​groove 1120 can be provided at the other end of the tube body 111. The snap-fit ​​part 1119 of the tube body 111 is used to snap into the snap-fit ​​groove 1120 of another tube body 111, so that one end of the tube body 111 is connected to the other end of the other tube body 111, and the channels of the two tube bodies 111 are connected. Thus, multiple tube bodies 111 can be connected in series to form an input pipeline or an output pipeline.

[0094] Among them, a limiting groove 1121 can be provided on the outer peripheral surface of the other end of the tube 111. The snap-fit ​​part 1119 of the tube 111 is accommodated in the limiting groove 1121 of the other tube 111 to restrict the relative rotation of the two tubes 111 in the circumferential direction of the channel, thereby making the connection between the two tubes 111 more stable.

[0095] Specifically, two snap-fit ​​portions 1119 are provided at one end of the tube body 111. The two snap-fit ​​portions 1119 are located on both radial sides of the tube body 111. A snap-fit ​​groove 1120 is provided at the other end of the tube body 111, and the snap-fit ​​groove 1120 extends circumferentially along the tube body 111. The two snap-fit ​​portions 1119 of the tube body 111 are used to snap into the snap-fit ​​groove 1120 of the other tube body 111, so that one end of the tube body 111 is stably connected to the other end of the other tube body 111. Two limiting grooves 1121 are also provided on the outer circumferential surface of the other end of the tube body 111. The two limiting grooves 1121 are distributed on both radial sides of the tube body 111, so that when the two snap-fit ​​portions 1119 of the tube body 111 are used to snap into the snap-fit ​​groove 1120 of the other tube body 111, the two snap-fit ​​portions 1119 can be accommodated one-to-one in the two limiting grooves 1121. The limiting groove 1121 and the corresponding snap-fit ​​groove 1120 are arranged along the length direction of the pipe body 111.

[0096] This application also provides a temperature control system, which includes a connector assembly. The specific structure of the connector assembly is as described in the above embodiments. Since this temperature control system 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.

[0097] The temperature control system 10 includes a connector assembly 11 and a temperature control assembly 12. The temperature control assembly 12 includes a connecting member 121 and a temperature control plate 122 connected to each other. The connecting member 121 has a channel, and the temperature control plate 122 has a flow path communicating with the channel. The connecting member 121 is connected to the connector head 113 of the connector assembly 11, so that the other end of the through hole 1131 of the connector head 113 communicates with the channel of the connecting member 121. The structures of the connector assembly 11 and the temperature control assembly 12 can refer to the above embodiments, and will not be repeated here.

[0098] This application also provides a battery pack, which includes a temperature regulation system. The specific structure of the temperature regulation system is as described in the above embodiments. Since this battery pack 1 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.

[0099] The structure of the battery pack can be referred to in the above embodiments, and will not be repeated here.

[0100] 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 joint assembly, characterized by The utility model relates to a pipe body, a connecting head and a sealing element, and belongs to the technical field of pipe connection. The utility model discloses a pipe body, a connecting head and a sealing element, and belongs to the technical field of pipe connection. The connecting head can move in the radial direction of the through hole relative to the connecting structure. The connecting head includes a connecting part movably connected with the connecting structure.

2. The fitting assembly of claim 1, wherein, The through hole penetrates the connecting part.

3. The fitting assembly of claim 2, wherein, The sealing ring is located between the connecting part and the outer circumferential surface of the pipe body. The connecting part is located at one end of the connecting head close to the pipe body.

4. The fitting assembly of claim 3, wherein, The connecting part is provided with a first accommodating groove on one side facing the pipe body.

5. The fitting assembly of claim 3, wherein, The sealing element includes a limiting part and a connecting segment.

6. The fitting assembly of claim 3, wherein, The connecting segment penetrates the via hole.

7. The fitting assembly of claim 6, wherein, The limiting part extends in the circumferential direction of the through hole.

8. The fitting assembly of claim 6, wherein, The number of the connecting segments is plural.

9. The fitting assembly of claim 6, wherein, At least a part of the limiting part is accommodated in the second accommodating groove.

10. The fitting assembly of claim 3, wherein, The connecting structure includes a limiting element connected with the pipe body.

11. The fitting assembly of claim 10, wherein, The limiting element is located on one side of the connecting part away from the pipe body.

12. The fitting assembly of claim 11, wherein, The limiting element is used to abut against one side of the connecting part away from the pipe body, so that the connecting part and the outer circumferential surface of the pipe body clamp the sealing ring.

13. The fitting assembly of claim 10, wherein, The connecting structure further includes a connecting protrusion protruding from the outer circumferential surface of the pipe body. The connecting protrusion encloses a groove.

14. The fitting assembly of claim 13, wherein, The interface is provided on the bottom surface of the groove.

15. The fitting assembly of claim 13, wherein, The connecting part is at least partially accommodated in the groove.

16. The joint assembly of any one of claims 1 to 15, wherein, The limiting element is connected with the connecting protrusion. The limiting element and the connecting protrusion are welded together. The limiting element surrounds the connecting head. The limiting element is provided with an avoiding hole for the connecting head to pass through. The connecting head includes a matching segment located in the avoiding hole. The inner diameter of the avoiding hole is greater than the outer diameter of the matching segment. The difference between the inner diameter of the avoiding hole and the outer diameter of the matching segment is greater than or equal to 0.1 mm and less than or equal to 1 mm. The outer diameter of the connecting part is greater than the inner diameter of the avoiding hole. The compression ratio of the sealing ring is greater than or equal to 8% and less than or equal to 42%.

17. A joint assembly as claimed in any one of claims 1 to 15, wherein, The connecting head is used to connect with the communicating member, so that the other end of the through hole is communicated with the channel of the communicating member; The joint assembly further comprises a limiting ring connected with the pipe body, the limiting ring is used to be sleeved on the communicating member, and the distance of the communicating member moving away from the pipe body is limited.

18. The joint assembly of claim 17, wherein, The inner circumferential surface of the limiting ring is provided with at least one limiting protrusion, the limiting protrusion is used to abut against the side of the communicating member away from the pipe body, so as to limit the distance of the communicating member moving away from the pipe body.

19. The fitting assembly of claim 17, wherein, The outer circumferential surface of the pipe body is further provided with at least two clamping protrusions, the at least two clamping protrusions are arranged along the circumference of the interface, the at least two clamping protrusions pass through the limiting ring and are clamped with the limiting ring.

20. The joint assembly of any one of claims 1 to 15, wherein, One end of the pipe body is provided with a clamping part, the other end of the pipe body is provided with a clamping groove, the clamping part of the pipe body is used to clamp with the clamping groove of another pipe body, so that one end of the pipe body is connected with the other end of another pipe body, and the channels of the two pipe bodies are communicated.

21. The fitting assembly of claim 20, wherein, The outer circumferential surface of the other end of the pipe body is further provided with a limiting groove, the clamping part of the pipe body is accommodated in the limiting groove of another pipe body, so as to limit the relative rotation of the two pipe bodies in the circumferential direction of the channel.

22. A temperature regulation system, comprising: Comprising: The joint assembly is the joint assembly of any one of claims 1 to 21; The temperature adjusting assembly comprises a communicating member and a temperature adjusting plate connected with each other, the communicating member is provided with a channel, the temperature adjusting plate is provided with a flow path communicated with the channel, the communicating member is connected with the connecting head of the joint assembly, so that the other end of the through hole of the connecting head is communicated with the channel of the communicating member.

23. A battery pack, characterized by The temperature adjusting system comprises the temperature adjusting system of claim 22.

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