Device for adjusting distance between tabs of battery module

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery module tab spacing adjusting device which comprises a limiting piece, an adjusting piece and a supporting piece, and the limiting piece is provided with a body extending in the length direction so as to limit and fix tabs, located on the same side, of battery cells in a battery module; the adjusting pieces are arranged at the two ends of each limiting piece body, each adjusting piece has a first state close to the corresponding limiting piece and a second state away from the corresponding limiting piece, and in the first state, the adjusting pieces are matched with the limiting pieces in an inserted mode; the supporting piece and the adjusting piece are assembled in a sliding mode, and the sliding direction of the adjusting piece is transverse to the length direction of the limiting piece. In the first state, the supporting piece is matched with the adjusting piece in a locking mode. In the second state, the supporting piece is in sliding fit with the adjusting piece. The device is simple in structure, the battery cell tabs can quickly and accurately penetrate through the tab mounting holes in the adapter plate, the mounting difficulty of the adapter plate is reduced, and touch short circuit caused by inaccurate positioning in the tab assembling process can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically relating to a battery module tab spacing adjustment device. Background Technology

[0002] As the core component of a battery module, the structure, capacity, and safety of the battery cell directly determine the battery's performance. Existing battery modules typically consist of multiple stacked battery cells. An adapter plate is installed on the tab side of each cell, and the adapter plate has tab pads and electrical connection lines. Multiple battery cells are connected in parallel or series by soldering the tabs to the tab pads on the adapter plate.

[0003] The spacing between the tabs of existing battery cells cannot be adjusted. Since battery cells are often made relatively thin, the distance between the tabs of adjacent cells is very close, which can easily lead to short circuits. Moreover, when multiple battery cells are soldered to the corresponding pads on the adapter board, misalignment can easily occur between the tabs and the corresponding tab mounting holes on the adapter board. Generally, the tabs are moved by using an insulating strip to align them with the tab mounting holes, and then the tabs are passed through the corresponding tab mounting holes on the adapter board and soldered to the tab pads on the adapter board. This method is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a battery module tab spacing adjustment device.

[0005] A first aspect of this utility model provides a battery module tab spacing adjustment device, comprising: a limiting member, an adjusting member, and a supporting member;

[0006] The limiting member has a body extending in the length direction to limit and fix the tabs of each cell in the battery module located on the same side.

[0007] The adjusting member is disposed at both ends of each of the limiting members. The adjusting member has a first state of being close to the limiting member and a second state of being away from the limiting member. In the first state, the adjusting member is inserted into the limiting member.

[0008] The support member and the adjusting member are slidably assembled, and the sliding direction of the adjusting member is transverse to the length direction of the limiting member; in the first state, the support member and the adjusting member are locked together; in the second state, the support member and the adjusting member are slidably assembled.

[0009] The battery module tab spacing adjustment device provided by this utility model has a simple structure, which allows each cell tab in the battery module to quickly and accurately pass through the tab mounting holes on the adapter plate, reducing the installation difficulty of the adapter plate, improving the assembly efficiency of the battery module, and avoiding short circuits caused by inaccurate positioning during tab assembly, thus improving safety performance.

[0010] In addition, the battery module tab spacing adjustment device of this utility model may also have the following additional technical features:

[0011] Preferably, the limiting member includes a first limiting plate and a second limiting plate, and a tab mounting gap is reserved between the first limiting plate and the second limiting plate. The tab mounting gap is used to assemble the tabs of the battery cell located on the same side.

[0012] Preferably, the adjusting member includes a first adjusting block and a second adjusting block, wherein the first adjusting block and the second adjusting block are slidably engaged with the support member;

[0013] The first adjusting block and the second adjusting block are respectively provided with a first slot and a second slot on the side that are close to each other; in the first state, the first limiting plate is assembled into the first slot and the second limiting plate is assembled into the second slot.

[0014] Preferably, the sum of the width of the first slot and the width of the second slot is equal to the sum of the thickness of the first limiting plate, the thickness of the second limiting plate, and the width of the tab mounting gap.

[0015] Preferably, the adjusting member includes a support frame that extends along the length direction of the transverse limiting member. The support frame has an open end, and a plurality of support plates are spaced apart on the side of the support frame facing the open end. A limiting groove is formed between two adjacent support plates, and the limiting groove is used to insert and cooperate with the first limiting plate and the second limiting plate.

[0016] Preferably, the battery module further includes an adapter plate located above the tabs, the adapter plate including a plurality of first tab mounting holes arranged transversely to the length direction of the limiting member; or / and,

[0017] Multiple second electrode mounting holes are provided, with the first electrode mounting holes and the second electrode mounting holes being spaced apart along the length direction of the limiting member, and the distance between two adjacent first electrode mounting holes or second electrode mounting holes being L1;

[0018] In the first state, the distance between the first or second adjusting block of two adjacent adjusting members is L2, and L1 and L2 satisfy: L2 <L1。

[0019] Preferably, the tabs on the same side of the battery cell include a first tab and / or a second tab;

[0020] The first electrode tab passes through the first electrode tab mounting hole and is bent and fixedly connected to the adapter plate; the second electrode tab passes through the second electrode tab mounting hole and is bent and fixedly connected to the adapter plate; the length of the first electrode tab and the second electrode tab extending out of the adapter plate is 2mm~3mm.

[0021] Preferably, the support member has a scale along the length direction transverse to the limiting member.

[0022] Preferably, the support member has a first sliding groove extending transversely to the length direction of the limiting member. The first sliding groove is a T-shaped groove, and the adjusting member is slidably assembled into the first sliding groove.

[0023] Preferably, in the first state, the support member is screwed and fixed to the adjusting member.

[0024] Preferably, a first mounting hole is provided on the side wall of the first adjusting block away from the limiting member, and a second mounting hole is provided on the side wall of the second adjusting block away from the limiting member;

[0025] A first connector and a second connector are mounted on the side wall of the support member away from the limiting member. The first connector passes through the side wall of the support member and is connected to the first mounting hole. The second connector passes through the side wall of the support member and is connected to the second mounting hole.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 A three-dimensional structural diagram of the battery module tab spacing adjustment device provided in the embodiments of this application;

[0029] Figure 2 for Figure 1 Diagram showing the fit between the limiting and adjusting components;

[0030] Figure 3 for Figure 2 Enlarged view of section A in the image;

[0031] Figure 4 for Figure 2The first structural diagram of the adjusting component in the middle;

[0032] Figure 5 for Figure 4 Diagram showing the cooperation structure of the first adjusting block and the second adjusting block;

[0033] Figure 6 for Figure 4 Structural diagram of the second adjusting block;

[0034] Figure 7 for Figure 1 Structural diagram of the middle support component;

[0035] Figure 8 This is a structural diagram of the battery module tab spacing adjustment device provided in the embodiments of this application for assisting in the installation of the adapter plate;

[0036] Figure 9 for Figure 8 Explosion-decomposition diagram;

[0037] Figure 10 for Figure 9 Battery module structure diagram;

[0038] Figure 11 for Figure 10 Structural diagram of the intermediate junction plate;

[0039] Figure 12 This is a second structural diagram of the adjusting member provided in an embodiment of this application.

[0040] In the above image:

[0041] 100 Limiting component; 101 First limiting plate; 102 Second limiting plate;

[0042] 110 Adjusting component; 111 First adjusting block; 1110 First slot; 1111 First mounting hole; 112 Second adjusting block; 1120 Second slot; 1121 Second mounting hole; 113 Support frame; 114 Support plate; 115 Limiting groove;

[0043] 120 Support component; 121 First slide groove; 122 Second slide groove;

[0044] 130 First connector;

[0045] 140 Second connector;

[0046] 200 Battery module; 201 Battery cell; 202 First tab; 203 Second tab; 204 Adapter board; 2041 First tab mounting hole; 2042 Second tab mounting hole. Detailed Implementation

[0047] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0050] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open and encompassing, that is, "including, but not limited to".

[0051] In the description of this specification, the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0053] like Figures 1 to 7 As shown, in a first aspect, this utility model provides a battery module tab spacing adjustment device, comprising: a limiting member 100, an adjusting member 110, and a supporting member 120.

[0054] The limiting member 100 has a body extending in the length direction to limit and fix the tabs of each cell 201 in the battery module 200 located on the same side.

[0055] The adjusting member 110 is disposed at both ends of the main body of each of the limiting members 100. The adjusting member 110 has a first state close to the limiting member 100 and a second state away from the limiting member 100. In the first state, the adjusting member 110 is inserted into the limiting member 100.

[0056] The support member 120 and the adjusting member 110 are slidably assembled, and the sliding direction of the adjusting member 110 is transverse to the length direction of the limiting member 100; in the first state, the support member 120 and the adjusting member 110 are locked together; in the second state, the support member 120 and the adjusting member 110 are slidably assembled.

[0057] Specifically, there are multiple limiting members 100, the number of which is the same as the number of battery cells 201 stacked within the battery module 200. Each limiting member 100 has a body extending in the length direction to limit and fix the tabs of corresponding battery cells 201 located on the same side within the battery module 200, thereby restricting the movement of the tabs along the length direction of the limiting member 100. For example, Figure 1 As shown, the length direction of the limiting member 100 is the x-direction, and the transverse direction to the length direction of the limiting member 100 is the y-direction. The battery module 200 can be a soft-pack battery cell 201. The tabs on the same side of the battery cell 201 can be one or two tabs. The thickness of the battery cell 201 is 7.9mm or more. Those skilled in the art can select the thickness value of the battery cell 201 according to actual needs.

[0058] Each limiting member 100 has an adjusting member 110 at both ends, meaning the number of adjusting members 110 is twice the number of limiting members 100. Each adjusting member 110 has a first state of being close to the limiting member 100 and a second state of being away from the limiting member 100. In the first state, each adjusting member 110 is inserted into the corresponding limiting member 100 to restrict the movement of the limiting member 100, thereby keeping the tabs of the battery cell 201 on the same side in a fixed state.

[0059] There are two support members 120. Each adjusting member 110 located at the same end of the limiting member 100 is slidably assembled into a corresponding support member 120. The support member 120 extends along the length direction of the transverse limiting member 100, and the adjusting member 110 slides with the support member 120 along the length direction of the transverse limiting member 100. In the first state, the support member 120 and the adjusting member 110 are locked together to limit the movement position of the adjusting member 110, so that the tabs of the cells 201 on the same side remain fixed. In the second state, the support member 120 and the adjusting member 110 slide together, so that the tab spacing between two adjacent cells 201 can be adjusted by the movement of the adjusting member 110 within the support member 120, so as to avoid short circuit. The adjusted tab spacing can meet the installation requirements of the first tab mounting hole 2041 and the second tab mounting hole 2042 on the adapter plate 204 with the tabs of each cell 201 in the battery module 200.

[0060] It should be noted that the adapter board 204 can be an integrated busbar (Cells Contact System, CCS). The integrated busbar uses FPC board or PCB board to replace the traditional wire harness connection. It is integrally thermoformed, simple to install, and has a high degree of integration.

[0061] The battery module tab spacing adjustment device provided by this utility model has a simple structure and is easy to operate. It enables the tabs of each cell 201 in the battery module 200 to pass quickly and accurately through the tab mounting holes on the adapter plate 204 and to be welded to the pads on the adapter plate 204. This reduces the installation difficulty of the adapter plate 204, improves the assembly efficiency of the battery module 200, and avoids short circuits caused by inaccurate positioning during tab assembly, thus improving safety performance.

[0062] In some implementations, such as Figures 1 to 3 As shown, the limiting member 100 includes a first limiting plate 101 and a second limiting plate 102. A tab mounting gap is reserved between the first limiting plate 101 and the second limiting plate 102. The tab mounting gap is used to assemble the tabs of the battery cell 201 located on the same side.

[0063] Specifically, the first limiting plate 101 and the second limiting plate 102 extend along the length of the limiting member 100. The width of the pre-reserved tab installation gap between the first limiting plate 101 and the second limiting plate 102 is equal to the thickness of the tab, so as to clamp and fix the tabs of the battery cell 201 located on the same side through the first limiting plate 101 and the second limiting plate 102. The number of first limiting plates 101 and the number of second limiting plates 102 are equal to the number of battery cells 201.

[0064] In some implementations, such as Figures 4 to 6As shown, the adjusting member 110 includes a first adjusting block 111 and a second adjusting block 112, and the first adjusting block 111 and the second adjusting block 112 are respectively slidably engaged with the support member 120;

[0065] The first adjusting block 111 and the second adjusting block 112 are respectively provided with a first slot 1110 and a second slot 1120 on the side that are close to each other; in the first state, the first limiting plate 101 is installed into the first slot 1110 and the second limiting plate 102 is installed into the second slot 1120.

[0066] Specifically, the adjusting member 110 includes a pair of first adjusting blocks 111 and second adjusting blocks 112. Both the first adjusting block and the second adjusting block 112 can slide within the support member 120. By sliding either the first adjusting block 111 or the second adjusting block 112 within the support member 120, the distance between the tabs of two adjacent cells 201 can be adjusted. For example, by adjusting each of the first adjusting blocks 111 within the same support member 120 so that the distance between any two adjacent first adjusting blocks 111 is equal to the distance between the tab mounting holes on the adapter plate 204, and then adjusting the second adjusting block 112 so that it is close to the first adjusting block 111, and then inserting the first limiting plate 101 into the first slot 1110 and the second limiting plate 102 into the second slot 1120, the tabs can be positioned and fixed.

[0067] In some embodiments, the sum of the width of the first slot 1110 and the width of the second slot 1120 is equal to the sum of the thickness of the first limiting plate 101, the thickness of the second limiting plate 102, and the width of the tab mounting gap.

[0068] Specifically, along the length direction of the transverse limiting member 100, the sum of the width w1 of the first slot 1110 and the width w2 of the second slot 1120 is equal to the sum of the thickness h1 of the first limiting plate 101, the thickness h2 of the second limiting plate 102, and the width D3 of the electrode mounting gap, i.e., w1+w2=h1+h2+D3. Thus, the position of the electrode can be limited and fixed by the cooperation of the adjusting member 110 and the limiting member 100, and the adjusted electrode position can be aligned with the electrode mounting hole of the adapter plate 204, ensuring that the electrode spacing remains unchanged during the installation of the adapter plate 204 and reducing the installation difficulty of the adapter plate 204.

[0069] In other implementations, such as Figure 12As shown, the adjusting member 110 includes a support frame 113, which extends along the length direction of the transverse limiting member 100. The support frame 113 has an open end, and a plurality of support plates 114 are spaced apart on the side of the support frame 113 facing the open end. A limiting groove 115 is formed between two adjacent support plates 114, and the limiting groove 115 is used to insert and cooperate with the first limiting plate 101 and the second limiting plate 102.

[0070] Specifically, the support frame 113 is a frame structure with an opening at one end. Multiple support plates 114 are spaced apart on the support frame 113 facing the opening end to form a limiting groove 115. The first limiting plate and the second limiting plate can be inserted into the limiting groove 115 to meet the limiting adjustment needs of different tab spacings.

[0071] It is understandable that the support plate 114 can slide within the support frame 113, thereby adjusting the thickness of the limiting groove 115 to meet the fine-tuning of the tab spacing.

[0072] In some implementations, such as Figures 8 to 11 As shown, the battery module 200 also includes an adapter plate 204 located above the tabs. The adapter plate 204 includes a plurality of first tab mounting holes 2041 and / or a plurality of second tab mounting holes 2042 arranged along the length direction of the transverse limiting member 100. The first tab mounting holes 2041 and the second tab mounting holes 2042 are spaced apart along the length direction of the limiting member 100, and the distance between two adjacent first tab mounting holes 2041 or second tab mounting holes 2042 is L1.

[0073] In the first state, the distance between the first adjusting block 111 or the second adjusting block 112 of two adjacent adjusting members 110 is L2, and L1 and L2 satisfy: L2 <L1。

[0074] Specifically, if the battery cell 201 has single-sided tab exits, that is, the two tabs of the battery cell 201 are located on the same side of the battery cell 201, and the two tabs are the first tab 202 and the second tab 203 respectively. Among them, the first tab 202 is the positive tab, and the second tab 203 is the negative tab; or the first tab 202 is the negative tab, and the second tab 203 is the positive tab. Then, a plurality of first tab mounting holes 2041 and a plurality of second tab mounting holes 2042 are arranged along the length direction of the horizontal limiting member 100 on the adapter board 204. The first tab mounting holes 2041 and the second tab mounting holes 2042 are arranged at intervals along the length direction of the limiting member 100. The first tab 202 passes through the first tab mounting hole 2041 and is bent and welded to the pad on the adapter board 204, and the second tab 203 passes through the second tab mounting hole 2042 and is bent and welded to the pad on the adapter board 204. [[ID=​​​​​​​​​In some implementations, such as Figure 10 As shown, the electrode tabs on the same side of the battery cell 201 include a first electrode tab 202 and / or a second electrode tab 203, wherein the first electrode tab 202 and the second electrode tab 203 have different polarities;

[0079] The first electrode tab 202 passes through the first electrode tab mounting hole 2041 and is bent and fixedly connected to the adapter plate 204; the second electrode tab 203 passes through the second electrode tab mounting hole 2042 and is bent and fixedly connected to the adapter plate 204; the lengths of the first electrode tab 202 and the second electrode tab 203 extending out of the adapter plate 204 are both 2mm~3mm.

[0080] Specifically, as mentioned above, the battery cell 201 can be a single-sided tab battery cell 201 or a double-sided tab battery cell 201, and the corresponding adapter plate 204 type is also different. The length of the first tab 202 and the second tab 203 extending out of the adapter plate 204 is 2mm~3mm, for example, 2mm, 2.4mm, 2.6mm, 3mm, etc., where the extension length is less than 2mm, which is not conducive to the bending and welding of the tabs, and the extension length is more than 3mm, which will result in waste of the tabs.

[0081] In some embodiments, the support member 120 is provided with a scale along the length direction of the transverse limiting member 100.

[0082] Specifically, at least one support member 120 is marked with a scale that indicates the position of the adjustment member 110 to precisely control the position of each first adjustment block 111 and second adjustment block 112 within the support member 120, thereby allowing precise adjustment of the tab spacing of each cell 201.

[0083] In some implementations, such as Figure 7 As shown, the support member 120 has a first sliding groove 121 extending along the length direction of the transverse limiting member 100. The first sliding groove 121 is a T-shaped groove, and the adjusting member 110 is slidably assembled into the first sliding groove 121.

[0084] Specifically, the first adjusting block 111 and the second adjusting block 112 are slidably disposed in the T-slot of the support member 120. Each first limiting plate 101 can pass through the T-slot and be inserted into the first slot 1110 of the corresponding first adjusting block 111, and each second limiting plate 102 can pass through the T-slot and be inserted into the second slot 1120 of the corresponding second adjusting block 112.

[0085] In some embodiments, in the first state, the support member 120 is screwed to the adjustment member 110.

[0086] Specifically, the support 120 and the adjusting component 110 are detachably connected by screws, which facilitates the sliding and fixing of the adjusting component 110.

[0087] In some implementations, such as Figures 1 to 7 As shown, the first adjusting block 111 is provided with a first mounting hole 1111 on the side wall away from the limiting member 100, and the second adjusting block 112 is provided with a second mounting hole 1121 on the side wall away from the limiting member 100.

[0088] A first connector 130 and a second connector 140 are mounted on the side wall of the support member 120 away from the limiting member 100. The first connector 130 passes through the side wall of the support member 120 and is screwed into the first mounting hole 1111. The second connector 140 passes through the side wall of the support member 120 and is screwed into the second mounting hole 1121.

[0089] Specifically, the support member 120 and the first adjusting block 111 are fixed by a matching first connector 130 and a first mounting hole 1111 screwed together, and the support member 120 and the second adjusting block 112 are fixed by a matching second connector 140 and a second mounting hole 1121 screwed together. The first mounting hole 1111 can communicate with the first slot 1110, and the first connector 130 passes through the first mounting hole 1111 to engage with the first limiting plate 101, further improving the stability of the first limiting plate 101. The second mounting hole 1121 can communicate with the second slot 1120, and the second connector 140 passes through the second mounting hole 1121 to engage with the second limiting plate 102, further improving the stability of the second limiting plate 102.

[0090] For example, the first mounting hole 1111 and the second mounting hole 1121 can be screw holes, and the corresponding first connector 130 and second connector 140 can be bolts, so as to realize the screw connection between the support 120 and the limiting member 100. Other detachable connections can also be used, which are not particularly limited in this application.

[0091] It should be noted that a second slide groove 122 is provided on the side of the support member 120 away from the first slide groove 121, for assembling each first connector 130 and each second connector 140. The second slide groove 122 is connected to the first slide groove 121. The second slide groove 122 is either a square slide groove or a T-shaped slide groove. If it is a square slide groove, the corresponding first connector 130 and second connector 140 can be hexagon socket head cap screws or hexagon head bolts. In the first state, the screw heads of the first connector 130 and second connector 140 can be tightly fitted to the outer side wall of the support member 120 away from the limiting member 100. If it is a T-shaped slide groove, the first connector 130 and second connector 140 can be hexagon socket head cap screws. In the first state, the hexagon socket head cap screws are located inside the T-shaped slide groove.

[0092] The installation method of the auxiliary adapter plate 204 for the battery module tab spacing adjustment device provided in this application embodiment includes:

[0093] Place the first adjusting block 111 and the second adjusting block 112 of each adjusting member 110 into one of the support members 120 in pairs. Adjust the distance between each first adjusting block 111 so that the distance between each first adjusting block 111 is L2. This distance L2 is equal to the distance L1 of each tab mounting hole along the length direction of the transverse limiting member 100 in the adapter plate 204. Then adjust each second adjusting block 112 so that each second adjusting block 112 is close to the corresponding first adjusting block 111. Lock and fix the corresponding first adjusting block 111 and second adjusting block 112 to the support member 120 through the first connecting member 130 and the second connecting member 140 respectively.

[0094] The first limiting plate 101 and the second limiting plate 102 of each limiting member 100 are respectively inserted into the gap of the battery cell 201, and the first limiting plate 101 and the second limiting plate 102 are clamped on both sides of the corresponding battery cell 201 located on the same side of the electrode tab; one end of the first limiting plate 101 and the second limiting plate 102 are respectively inserted into the first slot 1110 of the first adjusting block 111 and the second slot 1120 of the second adjusting block 112, so as to realize the insertion and cooperation between each limiting member 100 and the corresponding adjusting member 110;

[0095] The first adjusting block 111 and the second adjusting block 112 in another set of adjusting members 110 are respectively inserted and engaged with the other ends of the first limiting plate 101 and the second limiting plate 102 in each limiting member 100. Then, another support member 120 is slidably assembled onto another set of adjusting members 110 and fastened by the first connecting member 130 and the second connecting member 140, thereby fixing each adjusting member 110 at both ends of each limiting member 100 onto the corresponding support member 120.

[0096] Finally, align the tab mounting holes of the adapter board 204 with the tabs of each cell 201 in the battery module 200, so that the tabs of each cell 201 pass through the corresponding tab mounting holes, and after bending, weld and fix them to the corresponding pads of the adapter board 204, thus completing the installation of the adapter board 204.

[0097] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A battery module tab spacing adjustment device, characterized in that, include: Limiting element (100), adjusting element (110), and supporting element (120); The limiting member (100) has a body extending in the length direction to limit and fix the tabs of each cell (201) in the battery module (200) located on the same side; The adjusting member (110) is disposed at both ends of the body of the limiting member (100). The adjusting member (110) has a first state close to the limiting member (100) and a second state away from the limiting member (100). In the first state, the adjusting member (110) is inserted into the limiting member (100). The support member (120) and the adjusting member (110) are slidably assembled, and the sliding direction of the adjusting member (110) is transverse to the length direction of the limiting member (100); in the first state, the support member (120) and the adjusting member (110) are locked together; in the second state, the support member (120) and the adjusting member (110) are slidably assembled.

2. The battery module tab spacing adjustment device according to claim 1, characterized in that, The limiting component (100) includes a first limiting plate (101) and a second limiting plate (102). A tab installation gap is reserved between the first limiting plate (101) and the second limiting plate (102). The tab installation gap is used to assemble the tabs of the battery cell (201) located on the same side.

3. The battery module tab spacing adjustment device according to claim 2, characterized in that, The adjusting member (110) includes a first adjusting block (111) and a second adjusting block (112), the first adjusting block (111) and the second adjusting block (112) being slidably engaged with the support member (120); The first adjusting block (111) and the second adjusting block (112) are respectively provided with a first slot (1110) and a second slot (1120) on the side that are close to each other; in the first state, the first limiting plate (101) is installed in the first slot (1110) and the second limiting plate (102) is installed in the second slot (1120).

4. The battery module tab spacing adjustment device according to claim 3, characterized in that, The sum of the width of the first slot (1110) and the width of the second slot (1120) is equal to the sum of the thickness of the first limiting plate (101), the thickness of the second limiting plate (102), and the width of the tab mounting gap.

5. The battery module tab spacing adjustment device according to claim 2, characterized in that, The adjusting member (110) includes a support frame (113), which extends along the length direction of the transverse limiting member (100). The support frame (113) has an open end, and a plurality of support plates (114) are spaced apart on one side of the support frame (113) facing the open end. A limiting groove (115) is formed between two adjacent support plates (114), and the limiting groove (115) is used to insert and cooperate with the first limiting plate (101) and the second limiting plate (102).

6. The battery module tab spacing adjustment device according to claim 3, characterized in that, The battery module (200) further includes an adapter plate (204) located above the tabs, the adapter plate (204) including a plurality of first tab mounting holes (2041) arranged transversely to the length direction of the limiting member (100); or / and, Multiple second electrode mounting holes (2042) are provided, the first electrode mounting holes (2041) and the second electrode mounting holes (2042) are spaced apart along the length direction of the limiting member (100), and the distance between two adjacent first electrode mounting holes (2041) or second electrode mounting holes (2042) is L1; In the first state, the distance between the first adjusting block (111) or the second adjusting block (112) of two adjacent adjusting members (110) is L2, and L1 and L2 satisfy: L2 <L1。 7. The battery module tab spacing adjustment device according to claim 6, characterized in that, The tabs on the same side of the battery cell (201) include a first tab (202) and / or a second tab (203). The first electrode tab (202) passes through the first electrode tab mounting hole (2041) and is bent and fixedly connected to the adapter plate (204), and the second electrode tab (203) passes through the second electrode tab mounting hole (2042) and is bent and fixedly connected to the adapter plate (204); the lengths of the first electrode tab (202) and the second electrode tab (203) extending out of the adapter plate (204) are both 2mm~3mm.

8. The battery module tab spacing adjustment device according to any one of claims 1-7, characterized in that, The support member (120) has a scale along the length direction transverse to the limiting member (100).

9. The battery module tab spacing adjustment device according to any one of claims 1-7, characterized in that, The support member (120) has a first groove (121) extending transversely to the length direction of the limiting member (100), and the adjusting member (110) is slidably fitted into the first groove (121).

10. The battery module tab spacing adjustment device according to claim 3, characterized in that, The first adjusting block (111) has a first mounting hole (1111) on the side wall away from the limiting member (100), and the second adjusting block (112) has a second mounting hole (1121) on the side wall away from the limiting member (100). The support member (120) is equipped with a first connector (130) and a second connector (140) on the side wall away from the limiting member (100). The first connector (130) passes through the side wall of the support member (120) and is connected to the first mounting hole (1111). The second connector (140) passes through the side wall of the support member (120) and is connected to the second mounting hole (1121).

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