Positioning tool and battery pack

Abstract

This application discloses a positioning fixture and a battery pack, belonging to the field of assembly tool technology. The positioning fixture includes a limiting member and a spacer. The limiting member has a limiting structure that can be connected to the housing. The spacer has a first surface and a second surface that are opposite to each other. The first surface faces the limiting member and is connected to it. The spacer also has a first contact surface, which is disposed between the first surface and the second surface and connects the first surface and the second surface respectively. The first contact surface is used to contact the battery. This application achieves positioning of the positioning fixture by setting the limiting member and the limiting structure so that the positioning fixture can remain relatively stationary with respect to the housing. Furthermore, by setting the spacer to extend into the housing to limit the positioning of the battery or module, the positioning of the battery or module is achieved, reducing the number of times the battery or module needs to be adjusted and improving the efficiency of battery pack assembly.

Description

Technical Field

[0001] This application belongs to the field of assembly tool technology, specifically relating to positioning fixtures and battery packs. Background Technology

[0002] The battery pack consists of a housing and batteries. Operators assemble the battery pack by stacking modules or individual batteries and placing them into the housing.

[0003] However, in the actual assembly process, some types of modules or individual cells cannot be positioned, requiring multiple adjustments to the position of the modules or individual cells during battery pack assembly, resulting in low assembly efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning tooling to solve the technical problem of low assembly efficiency caused by the need to repeatedly adjust the position of modules or individual cells during the battery pack assembly process; another purpose of this application is to provide a battery pack.

[0005] Technical solution: This application provides a positioning fixture, including:

[0006] A limiting component, wherein the limiting component is provided with a limiting structure, and the limiting structure can be connected to the housing;

[0007] The spacer has a first surface and a second surface that are opposite to each other. The first surface faces the limiting member and is connected to the limiting member. The spacer also has a first contact surface disposed between the first surface and the second surface and connecting the first surface and the second surface respectively. The first contact surface is used to contact the battery. The first contact surface has a first groove.

[0008] In some embodiments, the spacer further has a second contact surface opposite to the first contact surface, the second contact surface being disposed between the first surface and the second surface and connecting the first surface and the second surface respectively; the first surface and the second surface are opposite to each other along a first direction, the first contact surface and the second contact surface are opposite to each other along a second direction, the first groove penetrates the spacer along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0009] In some embodiments, the first groove has a first groove wall and a second groove wall that are opposite to each other, the first groove wall being opposite to the first surface and the second groove wall being opposite to the second surface.

[0010] In some embodiments, the spacer further has a second contact surface that is opposite to the first contact surface, the second contact surface being disposed between the first surface and the second surface and connecting the first surface and the second surface respectively; the second contact surface has a second groove.

[0011] In some embodiments, the limiting member has a third contact surface, and the first contact surface and the third contact surface are coplanar.

[0012] In some embodiments, the limiting member includes:

[0013] The body portion has the third contact surface, the body portion is connected to the spacer, the body portion is provided with the limiting structure, and the body portion has a first connection surface connected to the spacer;

[0014] The connecting part protrudes from the third contact surface and is also provided with the limiting structure. The connecting part has a second connecting surface, and the first connecting surface and the second connecting surface are coplanar.

[0015] In some embodiments, the limiting structure includes a plurality of positioning holes, the positioning holes being disposed on the side of the limiting member facing the spacer, and the portion of the housing located on the spacer opposite to the first contact surface being able to pass through the positioning holes.

[0016] In some embodiments, the limiting structure includes a connector that passes through the limiting member and is capable of being connected to the housing.

[0017] In some embodiments, the positioning fixture further includes a gripper connected to the limiting member.

[0018] Accordingly, this application also provides a battery pack manufactured using the positioning tooling as described in any of the above embodiments.

[0019] Beneficial Effects: Compared with the prior art, the positioning fixture provided in this application includes a limiting member and a spacer. The limiting member has a limiting structure that can be connected to the housing. The spacer has a first surface and a second surface that are opposite to each other. The first surface faces the limiting member and is connected to it. The spacer also has a first contact surface that is disposed between the first surface and the second surface and connects the first surface and the second surface respectively. The first contact surface is used to contact the battery. This application achieves positioning of the positioning fixture by setting the limiting member and the limiting structure so that the positioning fixture can remain relatively stationary with respect to the housing. Furthermore, by setting the spacer to extend into the housing to limit the battery or module, the positioning of the battery or module is achieved, reducing the number of times the battery or module needs to be adjusted and improving the efficiency of battery pack assembly. Attached Figure Description

[0020] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the positioning fixture provided in the embodiments of this application;

[0022] Figure 2 A cross-sectional view of the positioning fixture provided in an embodiment of this application;

[0023] Figure 3 A perspective view of the positioning fixture provided in the embodiments of this application;

[0024] Figure 4 A perspective view of the positioning fixture provided in an embodiment of this application from another angle;

[0025] Figure 5 This is a schematic diagram of the positioning tooling provided in the embodiments of this application during use;

[0026] Figure 6 This is a cross-sectional view of the positioning fixture provided in the embodiments of this application during use.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100 - Limiting component; 110 - Limiting structure; 111 - Positioning hole; 112 - Connecting component; 120 - Third contact surface; 130 - Body part; 131 - First connecting surface; 140 - Connecting part; 141 - Second connecting surface; 150 - First connecting hole; 200 - Spacer; 210 - First surface; 220 - Second surface; 230 - First contact surface; 240 - Second contact surface; 250 - First groove; 251 - First groove wall; 252 - Second groove wall; 260 - Second groove; 270 - Second connecting hole; 300 - Holding component; 400 - Box body; 410 - Receiving cavity; 420 - Third surface; X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0029] 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 them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited. Furthermore, 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. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0031] It should also be noted that in the accompanying drawings of the embodiments of this application, the arrows labeled X, Y, and Z respectively represent the first direction X, the second direction Y, and the third direction Z. The description of this application introduces the first direction X, the second direction Y, and the third direction Z to more clearly express the relative positional relationship involved in this application. The first direction X, the second direction Y, and the third direction Z are three intersecting relative directions, not absolute directions. In practical applications, the first direction X, the second direction Y, and the third direction Z can point to any direction in space, as long as the intersection relationship between them is maintained.

[0032] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure of this application, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit this application.

[0033] The battery pack includes a housing 400 and batteries. Operators assemble the battery pack by stacking modules or individual batteries and placing them into the housing 400.

[0034] However, in the actual assembly process, some types of modules or individual cells cannot be positioned, requiring multiple adjustments to the position of the modules or individual cells during battery pack assembly, resulting in low assembly efficiency.

[0035] To address the aforementioned technical problem of low battery pack assembly efficiency due to the need for multiple adjustments to the module or individual cell positions, this application provides a positioning fixture. Please refer to... Figure 1 and Figure 2The positioning fixture includes a limiting member 100 and a spacer 200. The limiting member 100 is provided with a limiting structure 110, which can be connected to the housing 400. The spacer 200 has a first surface 210 and a second surface 220 that are opposite to each other. The first surface 210 faces the limiting member 100 and is connected to the limiting member 100. The spacer 200 also has a first contact surface 230, which is disposed between the first surface 210 and the second surface 220 and connects the first surface 210 and the second surface 220 respectively. The first contact surface 230 is used to contact the battery and has a first groove 250.

[0036] In some embodiments, the housing 400 has a third surface 420 and a receiving cavity 410, the receiving cavity 410 having an opening formed on the third surface 420, and the receiving cavity 410 being used to place a module or a single battery cell.

[0037] In some embodiments, the limiting member 100 is connected to the third surface 420, and the limiting structure 110 is connected to the housing 400, so as to at least limit the positioning fixture relative to the housing 400 in the second direction Y and the third direction Z.

[0038] In some embodiments, when using the positioning fixture, the first direction X is the direction of gravity, and the third surface 420 is the upper surface of the box 400. Therefore, the box 400 can provide the positioning fixture with a supporting force to overcome gravity. Under the action of the limiting structure 110, the positioning fixture achieves limiting in the first direction X, the second direction Y, and the third direction Z.

[0039] Firstly, in the above embodiments, by setting the limiting member 100 and the limiting structure 110 to fix the position of the positioning fixture relative to the housing 400, and by setting the spacer 200 to contact the module or battery to limit the module or battery in the second direction Y, the positioning of the module or battery is achieved, thereby reducing the number of times the module or battery position needs to be adjusted during the battery pack assembly process and improving the assembly efficiency of the battery pack.

[0040] Secondly, in the above embodiments, by providing a first groove 250 on the first contact surface 230 that contacts the module or battery, the area of ​​the first contact surface 230 can be reduced, thereby reducing the possibility of the positioning fixture and battery adhering. When the module or battery in the battery pack is placed, the positioning fixture can be more easily removed from the housing 400, improving the ease of use of the positioning fixture.

[0041] Thirdly, in the above embodiments, by providing a first groove 250 on the first contact surface 230, the weight of the positioning fixture can also be reduced, further reducing the difficulty of removing the positioning fixture after the module or battery is placed, and improving the ease of use of the positioning fixture.

[0042] In some embodiments, please refer to Figure 2 The limiting member 100 has a first connecting hole 150 that passes through the limiting member 100 along the first direction X, and the spacer 200 has a second connecting hole 270. The positioning fixture includes a bolt, which is sequentially inserted into the first connecting hole 150 and the second connecting hole 270 to connect the limiting member 100 and the spacer 200. The second connecting hole 270 is a threaded hole so that the bolt can be threadedly connected to the spacer 200.

[0043] In some embodiments, please refer to Figure 3 and Figure 4 The spacer 200 also has a second contact surface 240 opposite to the first contact surface 230. The second contact surface 240 is disposed between the first surface 210 and the second surface 220 and connects the first surface 210 and the second surface 220 respectively. The first surface 210 and the second surface 220 are opposite to each other along the first direction X, the first contact surface 230 and the second contact surface 240 are opposite to each other along the second direction Y, and the first groove 250 penetrates the spacer 200 along the third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0044] In the above embodiment, by making the first groove 250 penetrate the spacer 200 along the third direction Z to further reduce the area of ​​the first contact surface 230, the possibility of the positioning fixture and battery adhering is further reduced. When the module or battery in the battery pack is placed, the positioning fixture can be taken out from the box 400 more conveniently, thus improving the ease of use of the positioning fixture.

[0045] In some embodiments, please refer to Figure 2 The first groove 250 has a first groove wall 251 and a second groove wall 252 that are opposite to each other. The first groove wall 251 is opposite to the first surface 210, and the second groove wall 252 is opposite to the second surface 220.

[0046] It is understandable that, since the first groove 250 has a first groove wall 251 and a second groove wall 252 that are opposite to the first surface 210 and the second surface 220 respectively, that is, the first groove 250 does not penetrate the first surface 210 and the second surface 220, the first contact surface 230 is formed by the portion between the first surface 210 and the first groove wall 251 and the portion between the second surface 220 and the second groove wall 252. The portion between the first surface 210 and the first groove wall 251 can contact the portion of the battery or module that is opposite to the bottom wall of the housing 400, and the portion between the second surface 220 and the second groove wall 252 can contact the portion of the battery or module that is close to the bottom wall of the housing 400.

[0047] In the above embodiments, by making the first groove 250 have a first groove wall 251 and a second groove wall 252 that are opposite to the first surface 210 and the second surface 220 respectively, the portion of the module or battery that is close to the bottom wall of the housing 400 and the portion that is far away from the bottom wall of the housing 400 along the first direction X can contact the first contact surface 230, reducing the possibility of the module or battery tilting after contacting the first contact surface 230. Even when the first contact surface 230 is small, it ensures that the positioning fixture still has a good positioning effect.

[0048] In some embodiments, referring to the figures, the spacer 200 further has a second contact surface 240, which is opposite to the first contact surface 230. The second contact surface 240 is disposed between the first surface 210 and the second surface 220 and connects the first surface 210 and the second surface 220 respectively. The second contact surface 240 has a second groove 260.

[0049] In some embodiments, the second contact surface 240 is connected to the housing 400; in some embodiments, the second contact surface 240 and the housing 400 are spaced apart along the second direction Y.

[0050] Firstly, in the above embodiments, by providing a second groove 260 on the second contact surface 240 that contacts the module or battery, the area of ​​the second contact surface 240 can be reduced, thereby reducing the possibility of the positioning fixture adhering to the housing 400. When the module or battery in the battery pack is placed, the positioning fixture can be more easily removed from the housing 400, thus improving the ease of use of the positioning fixture.

[0051] Secondly, in the above embodiments, by providing a second groove 260 on the second contact surface 240, the weight of the positioning fixture can also be reduced, further reducing the difficulty of removing the positioning fixture after the module or battery is placed, and improving the ease of use of the positioning fixture.

[0052] In some embodiments, please refer to Figure 3 The second groove 260 penetrates the spacer 200 along the third direction Z.

[0053] In some embodiments, the second groove 260 is spaced apart from the first surface 210 along the first direction X; in some embodiments, the second groove 260 is spaced apart from the second surface 220 along the first direction X; in some embodiments, the second groove 260 is spaced apart from the first surface 210 and the second surface 220 along the first direction X.

[0054] In some embodiments, the limiting member 100 has a third contact surface 120, and the first contact surface 230 and the third contact surface 120 are coplanar.

[0055] Firstly, in the above embodiments, by making the third contact surface 120 of the limiting member 100 coplanar with the first contact surface 230, the possibility of the module or battery being blocked by the limiting member 100 when it is placed into the receiving cavity 410 of the housing 400 along the first direction X is reduced, thereby improving the ease of use of the positioning fixture and further improving the assembly efficiency of the battery pack.

[0056] In some embodiments, in the second direction Y, the portion of the module or battery away from the bottom wall of the housing 400 along the first direction X can be directly connected to the limiting member 100 connected to the housing 400. The limiting member 100 directly connected to the housing 400 is less prone to shaking or loosening than the spacer 200, thereby providing a better positioning effect for the module or battery, further improving the effect of the positioning fixture, and improving the assembly efficiency of the battery pack.

[0057] In some embodiments, referring to the figures, the limiting member 100 includes a body portion 130 and a connecting portion 140. The body portion 130 has a third contact surface 120 and is connected to the spacer 200. The body portion 130 is provided with a limiting structure 110 and has a first connecting surface 131 connected to the spacer 200. The connecting portion 140 protrudes from the third contact surface 120 and is also provided with a limiting structure 110. The connecting portion 140 has a second connecting surface 141, and the first connecting surface 131 and the second connecting surface 141 are coplanar.

[0058] In some embodiments, please refer to Figure 3 A portion of the main body 130 protrudes from the third contact surface 120 along the second direction Y, away from the spacer 200, so that it can connect with the third surface 420 of the housing 400 when the spacer 200 extends into the receiving cavity 410. A limiting structure 110 is provided on the portion of the main body 130 protruding from the third contact surface 120 along the second direction Y. Specifically, the dimension of the limiting member 100 along the second direction Y is larger than the dimension of the spacer 200 along the second direction Y, and the orthographic projection of the portion of the main body 130 where the limiting structure 110 is located along the first direction X on the plane where the first surface 210 is located is located on the side of the spacer 200 closer to the second contact surface 240.

[0059] In some embodiments, please refer to Figure 1 A portion of the main body 130 protrudes along the third direction Z onto the spacer 200. The connecting portion 140 is connected to the portion of the main body 130 that protrudes along the third direction Z onto the spacer 200, so as to extend the dimension of the connecting surface between the limiting member 100 and the box 400 in the second direction Y while bypassing the opening of the box 400, thereby reducing the possibility of the positioning fixture connected to the box 400 tilting.

[0060] In other embodiments, the connecting portion 140 covers the opening, one end of the connecting portion 140 along the second direction Y is connected to the third contact surface 120, and the other end of the connecting portion 140 along the second direction Y can be connected to the third surface 420 to increase the size of the connecting surface between the limiting member 100 and the housing 400 in the second direction Y.

[0061] In the above embodiment, by providing the connecting part 140, the dimension of the connecting surface between the limiting member 100 and the housing 400 is extended in the second direction Y, thereby improving the connection stability between the positioning fixture and the housing 400, reducing the possibility of the positioning fixture connected to the housing 400 tilting, and improving the reliability of the positioning fixture.

[0062] In some embodiments, please refer to Figure 3 and Figure 6 The limiting structure 110 includes a plurality of positioning holes 111. The positioning holes 111 are located on the side of the limiting member 100 facing the spacer 200. The portion of the housing 400 located on the spacer 200 away from the first contact surface 230 can pass through the positioning holes 111.

[0063] In some embodiments, the positioning holes 111 are spaced apart along the third direction Z.

[0064] In some embodiments, the positioning hole 111 is a blind hole; in some embodiments, the positioning hole 111 is a through hole, so as to facilitate observation of the situation inside the positioning hole 111 and to facilitate the insertion of a portion of the housing 400 through the positioning hole 111.

[0065] In some embodiments, a positioning hole 111 is provided on the portion of the spacer 200 that protrudes from the third contact surface 120 along the second direction Y, so as to cooperate with the portion of the housing 400 that protrudes from the third surface 420 and is located on the spacer 200 that is away from the first contact surface 230.

[0066] In some embodiments, the portion of the spacer 200 that protrudes from the third surface 420 and is located away from the first contact surface 230 is a fastener that passes through the third surface 420.

[0067] Firstly, in the above embodiments, by providing a positioning hole 111 to cooperate with a portion on the housing 400, the portion of the housing 400 provided in the positioning hole 111 can limit the positioning fixture along the second direction Y and the third direction Z by contacting the hole wall of the positioning hole 111, so that the positioning fixture can be positioned using the structure of the housing 400 itself, making the positioning function of the positioning fixture more reliable.

[0068] Secondly, in the above embodiments, by setting positioning holes 111 so that a part of the housing 400 can pass through the limiting member 100 along the first direction X, the difficulty of connecting the positioning fixture and the housing 400 is reduced. In actual use, only the position needs to be adjusted to complete the connection between the positioning fixture and the housing 400, thus improving the ease of use of the positioning fixture.

[0069] Thirdly, by setting multiple positioning holes 111, at least two parts of the housing 400 can be respectively inserted into two positioning holes 111, thereby limiting the rotation of the positioning fixture around the axis extending along the first direction X, improving the connection stability between the positioning fixture and the housing 400, and improving the reliability of the positioning fixture.

[0070] In some embodiments, please refer to Figure 6 The limiting structure 110 includes a connector 112, which passes through the limiting member 100 and can be connected to the housing 400.

[0071] In some embodiments, the connector 112 is a bolt.

[0072] In the above embodiment, the connecting member 112 is provided so that the positioning fixture and the housing 400 can be connected more firmly.

[0073] In some embodiments, please refer to Figure 3 and Figure 6 The limiting structure 110 includes a connector 112 and a positioning hole 111; in some embodiments, the positioning hole 111 is disposed in the body portion 130, and the connector 112 passes through the connecting portion 140.

[0074] In the above embodiment, by providing a connector 112 in the connecting part 140 that makes the connection between the limiting member 100 and the housing 400 more reliable, even when the dimension of the connecting surface of the limiting member 100 and the housing 400 along the second direction Y is small, the connection between the limiting member 100 and the housing 400 remains reliable, reducing the possibility of tilting when the positioning fixture is connected to the housing 400, and improving the reliability of the positioning fixture.

[0075] In some embodiments, please refer to Figure 4 The positioning fixture also includes a gripper 300, which is connected to the limiting member 100.

[0076] In some embodiments, the positioning fixture includes a plurality of grips 300; in some embodiments, the plurality of grips 300 are spaced apart along a first direction X to facilitate an operator to remove the positioning fixture from the receiving cavity 410 of the housing 400 using both hands.

[0077] In some embodiments, the grip 300 is a handle.

[0078] In the above embodiment, by providing a gripper 300, the difficulty of removing the positioning fixture from the receiving cavity 410 of the housing 400 is reduced, thereby improving the ease of use of the positioning fixture.

[0079] The following are the steps for using this positioning fixture:

[0080] 1. Please refer to Figure 5 Place the spacer 200 into the receiving cavity 410 of the housing 400;

[0081] 2. Insert the fasteners of the housing 400 into the positioning holes 111, and connect the connector 112 to the housing 400;

[0082] 3. Begin placing the module or battery into the receiving cavity 410, so that the battery approaching the spacer 200 along the second direction Y contacts the first contact surface 230.

[0083] 4. Loosen connector 112;

[0084] 5. Use a handle to lift the positioning fixture so that the spacer 200 is removed from the receiving cavity 410.

[0085] Accordingly, this application also provides a battery pack manufactured using the positioning fixture as described in any of the above embodiments.

[0086] The positioning fixture and battery pack provided in the embodiments of this application have been described in detail above. Specific examples have been used in this application 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 technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A positioning fixture, characterized by, include: A limiting member (100) is provided with a limiting structure (110), which can be connected to the housing (400); A spacer (200) has a first surface (210) and a second surface (220) facing away from each other. The first surface (210) faces the limiting member (100) and is connected to the limiting member (100). The spacer (200) also has a first contact surface (230) disposed between the first surface (210) and the second surface (220) and connecting the first surface (210) and the second surface (220) respectively. The first contact surface (230) has a first groove (250).

2. The positioning tool of claim 1, wherein The spacer (200) also has a second contact surface (240) opposite to the first contact surface (230), the second contact surface (240) being disposed between the first surface (210) and the second surface (220); the first surface (210) and the second surface (220) are opposite to each other along a first direction (X), the first contact surface (230) and the second contact surface (240) are opposite to each other along a second direction (Y), and the first groove (250) penetrates the spacer (200) along a third direction (Z), the first direction (X), the second direction (Y) and the third direction (Z) being perpendicular to each other.

3. The positioning tool of claim 1, wherein The first groove (250) has a first groove wall (251) and a second groove wall (252) that are opposite to each other. The first groove wall (251) is opposite to the first surface (210), and the second groove wall (252) is opposite to the second surface (220).

4. The positioning tool of claim 1, wherein The spacer (200) also has a second contact surface (240), which is opposite to the first contact surface (230). The second contact surface (240) is disposed between the first surface (210) and the second surface (220) and connects the first surface (210) and the second surface (220) respectively. The second contact surface (240) has a second groove (260).

5. The positioning tool of claim 1, wherein The limiting member (100) has a third contact surface (120), and the first contact surface (230) and the third contact surface (120) are coplanar.

6. The positioning fixture of claim 5, wherein, The limiting member (100) includes: The body part (130) has the third contact surface (120), the body part (130) is connected to the spacer (200), the body part (130) is provided with the limiting structure (110), and the body part (130) has a first connecting surface (131) connected to the spacer (200). A connecting part (140) is provided on the third contact surface (120). The connecting part (140) is also provided with the limiting structure (110). The connecting part (140) has a second connecting surface (141). The first connecting surface (131) and the second connecting surface (141) are coplanar.

7. The positioning fixture according to claim 1, characterized in that, The limiting structure (110) includes a plurality of positioning holes (111), the positioning holes (111) are disposed on the side of the limiting member (100) facing the spacer (200), and the portion of the housing (400) located on the spacer (200) away from the first contact surface (230) can pass through the positioning holes (111).

8. The positioning fixture according to claim 1, characterized in that, The limiting structure (110) includes a connector (112) which passes through the limiting member (100) and can be connected to the housing (400).

9. The positioning fixture according to claim 1, characterized in that, The positioning fixture also includes a gripper (300), which is connected to the limiting member (100).

10. A battery pack, characterized in that, It is made using the positioning fixture as described in any one of claims 1 to 9.

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