Fixing clamp

Abstract

The utility model belongs to the technical field of battery's overcurrent test, disclose a kind of fixed clamp.The fixed clamp includes support structure and fixed structure.The support structure is set along the stacking direction of multiple electric core.The fixed structure is movably set on the support structure, and can be moved along the stacking direction of multiple electric core.The fixed structure is provided with first through opening, second through opening and partition, the partition is located between the first through opening and the second through opening, the first end piece of overcurrent row is positioned in the first through opening, the second through opening corresponds to the second end piece of overcurrent row, and the second end piece is positioned in the second through opening and is pressed on the electric core.The fixed clamp can realize the accurate limit of overcurrent row on multiple electric core, and high flexibility, and can be suitable for the limit of overcurrent row on the electric core of different thickness stacking.

Description

Technical Field

[0001] This utility model relates to the field of battery overcurrent testing technology, and in particular to a fixing fixture. Background Technology

[0002] In the overcurrent test of prismatic batteries, the battery terminals and the current bus need to be welded together first. The specific process for welding the terminals and the current bus is as follows: first, the current bus is fixed to the battery with tape, and then the two are welded together.

[0003] The aforementioned welding method is cumbersome, and the connection between the terminal block and the busbar is not stable. Furthermore, when preparing multiple battery test samples, multiple terminals and busbars need to be bonded separately, resulting in low production and testing efficiency.

[0004] Therefore, there is an urgent need for a fixing fixture to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing clamp that can accurately limit the position of the busbar on multiple battery cells, and is highly flexible and applicable to limiting the position of the busbar on stacked battery cells of different thicknesses.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The fixing fixture includes:

[0008] A support structure is provided along the stacking direction of multiple battery cells;

[0009] A fixed structure is movably mounted on the support structure and can move along the stacking direction of the multiple battery cells. The fixed structure has a first port, a second port, and a partition. The partition is located between the first port and the second port. A first end piece of the flow bus is positioned through the first port. The second port corresponds to the second end piece of the flow bus. The second end piece is positioned in the second port and presses against the battery cell. The first end piece and the second end piece are connected to each other at an angle.

[0010] As a preferred embodiment of the fixing clamp provided by this utility model, the fixing clamp further includes a slide rail structure, which is arranged parallel to the stacking direction of the plurality of battery cells and is disposed on the support structure. The fixing structure is slidably connected to the slide rail structure.

[0011] As a preferred embodiment of the fixing clamp provided by this utility model, a bottom opening and a top opening are respectively provided on opposite sides of the second port. The distance between the bottom opening and the battery cell is less than the distance between the top opening and the battery cell. The second end piece can enter the second port from the bottom opening. The cross-sectional area of ​​the top opening is less than the cross-sectional area of ​​the second end piece.

[0012] As a preferred embodiment of the fixing clamp provided by this utility model, a limiting part is provided on the periphery of the top opening, and the limiting part can press against the side of the second end piece away from the battery cell.

[0013] As a preferred embodiment of the fixing clamp provided by this utility model, the cross-sectional area of ​​the bottom opening is larger than the cross-sectional area of ​​the second end member; and / or,

[0014] The cross-sectional area of ​​the first opening is greater than the cross-sectional area of ​​the first end piece.

[0015] As a preferred embodiment of the fixing clamp provided by this utility model, the partition portion can press against the included angle between the first end piece and the second end piece, and the adjacent sides of the partition portion respectively abut against the first end piece and the second end piece.

[0016] As a preferred embodiment of the fixing clamp provided by this utility model, the fixing clamp further includes a limiting structure, which is connected to the fixing structure and can extend into the second through-hole and abut against the side of the second end piece.

[0017] As a preferred embodiment of the fixing clamp provided by this utility model, there are two limiting structures, which are disposed on opposite sides of the fixing structure and can respectively abut against opposite sides of the second end piece.

[0018] As a preferred embodiment of the fixing clamp provided by this utility model, the limiting structure includes a screw portion, and the side of the fixing structure is provided with a screw hole communicating with the second through port. The screw portion is screwed through the screw hole and extends into the second through port.

[0019] As a preferred embodiment of the fixing clamp provided by this utility model, the bracket structure includes a lower support part and an upper limit part. The upper limit part and the lower support part are spaced apart to form a guide space. The fixing structure part extends into the guide space and is movably connected to the lower support part.

[0020] The beneficial effects of this utility model are:

[0021] The fixing fixture provided by this utility model includes a support structure and a fixing structure. The support structure is arranged along the stacking direction of multiple battery cells. The fixing structure is movably mounted on the support structure and can move along the stacking direction of the multiple battery cells. The support structure provides a mounting base for the fixing structure and guides its movement, improving flexibility and facilitating position adjustment of the fixing structure for stacked battery cells of different thicknesses, thus limiting the position of the busbar on stacked battery cells of different thicknesses. The fixing structure has a first port, a second port, and a partition. The partition is located between the first port and the second port. A first end piece of the busbar is positioned through the first port, and the second port corresponds to the second end piece of the busbar. The second end piece is positioned in the second port and presses against the battery cell. The first port, the second port, and the partition allow for reliable positioning of the first and second end pieces. The partition allows for pressing the second end piece against the battery cell, ensuring the accuracy and reliability of the positioning between the busbar and the battery cell. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 This is an assembly diagram of the fixing clamp and the battery cell provided in this embodiment of the utility model;

[0024] Figure 2 yes Figure 1 A magnified view of a section marked A in the middle;

[0025] Figure 3 yes Figure 1 A magnified view of a section marked B in the middle;

[0026] Figure 4 This is a schematic diagram of the first and second end members of the busbar provided in this embodiment of the utility model.

[0027] In the picture:

[0028] 1. Battery cell;

[0029] 10. First end piece; 20. Second end piece;

[0030] 100. Support structure; 110. Lower support section; 120. Upper limit section;

[0031] 200. Fixed structure; 210. First opening; 220. Second opening; 221. Limiting part; 230. Parting part;

[0032] 300. Slide rail structure;

[0033] 400, Limiting structure; 410, Screw section; 420, Operating head. Detailed Implementation

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" 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 or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] Figure 1 This diagram illustrates the assembly of the fixing clamp and the battery cell provided in an embodiment of the present invention. Figure 2 Show Figure 1 A magnified view of a section marked A in the middle; Figure 3 Show Figure 1 A magnified view of a section marked B in the middle; Figure 4 This diagram illustrates the first and second end members of the flow bus provided in an embodiment of the present invention. (Refer to...) Figures 1-4 This embodiment provides a fixing fixture. The fixing fixture can be used to position the first end piece 10 and the second end piece 20 of the busbar on the battery cell 1, which facilitates the accuracy of subsequent welding connection between the busbar and the battery cell 1, avoids problems such as incomplete welding, and improves welding efficiency and reliability.

[0044] The fixing fixture includes a support structure 100 and a fixing structure 200. The support structure 100 is arranged along the stacking direction of multiple battery cells 1. The fixing structure 200 is movably mounted on the support structure 100 and can move along the stacking direction of the multiple battery cells 1. The fixing structure 200 can position the first end piece 10 and the second end piece 20 of the busbar on the battery cell 1 to achieve the positioning of the busbar and the battery cell 1 before welding. The first end piece 10 and the second end piece 20 are connected to each other at an angle. The support structure 100 provides a mounting base for the fixing structure 200 and guides the movement of the fixing structure 200, improving flexibility and facilitating the position adjustment of the fixing structure 200 for stacked battery cells 1 of different thicknesses, thereby limiting the position of the busbar on stacked battery cells 1 of different thicknesses.

[0045] Specifically, the fixing structure 200 is provided with a first port 210, a second port 220, and a partition 230. The partition 230 is located between the first port 210 and the second port 220. The first end member 10 of the busbar is positioned through the first port 210, and the second port 220 corresponds to the second end member 20 of the busbar. The second end member 20 is positioned in the second port 220 and presses against the battery cell 1. Through the first port 210, the second port 220, and the partition 230, the first end member 10 and the second end member 20 can be reliably positioned. Through the partition 230, the second end member 20 can be pressed against the battery cell 1, thereby ensuring the accuracy and reliability of the positioning between the busbar and the battery cell 1.

[0046] More specifically, the support structure 100 includes a lower support portion 110 and an upper limit portion 120. The upper limit portion 120 is spaced apart from the lower support portion 110 to form a guide space. The side portion of the fixing structure 200 extends into the guide space and is movably connected to the lower support portion 110. The lower support portion 110 and the upper limit portion 120 can limit the fixing structure 200 in the vertical direction.

[0047] More specifically, the fixing fixture also includes a slide rail structure 300. The slide rail structure 300 is arranged parallel to the stacking direction of the plurality of battery cells 1 and is disposed on the lower support portion 110. The fixing structure 200 is slidably connected to the slide rail structure 300. The slide rail structure 300 enables smoother movement of the fixing structure 200 and further guides and limits its movement.

[0048] Preferably, in this embodiment, to ensure the reliable positioning of the fixing structure 200 for the first end member 10 and the second end member 20, two support structures 100 and two slide rail structures 300 are specifically provided. The two support structures 100 are respectively disposed on both sides of the fixing structure 200 in a first direction, which is perpendicular to the stacking direction of the battery cells 1 and perpendicular to the vertical direction.

[0049] Continue to refer to Figures 2-4 The second port 220 has a bottom opening and a top opening on opposite sides in the vertical direction. The distance from the bottom opening to the battery cell 1 is less than the distance from the top opening to the battery cell 1. The second end piece 20 can enter the second port 220 through the bottom opening, and the cross-sectional area of ​​the top opening is less than the cross-sectional area of ​​the second end piece 20. In other words, the second end piece 20 can be accommodated in the second port 220 and can be pressed against by a part of the upper surface of the fixing structure 200, thereby ensuring stability.

[0050] Specifically, a limiting portion 221 is provided around the periphery of the top opening, which can press against the side of the second end member 20 away from the battery cell 1. In this embodiment, the limiting portion 221 is specifically formed at the two apex corners of the second opening 220. Specifically, the two apex corners are arranged opposite to the partition portion 230 in the stacking direction of the battery cells 1, which can further strengthen the positioning of the second end member 20 in the vertical direction on the basis of the pressing action of the partition portion 230 on the second end member 20.

[0051] More specifically, the cross-sectional area of ​​the bottom opening is larger than the cross-sectional area of ​​the second end member 20. This arrangement facilitates the installation of the fixing structure 200 on the second end member 20 and allows the second end member 20 to be inserted into the second opening 220.

[0052] More specifically, the cross-sectional area of ​​the first opening 210 is larger than the cross-sectional area of ​​the first end piece 10. This arrangement facilitates the insertion of the first end piece 10 into the first opening 210.

[0053] More specifically, the partition 230 can press against the angle between the first end member 10 and the second end member 20, with adjacent sides of the partition 230 abutting against the first end member 10 and the second end member 20 respectively. In this embodiment, the first end member 10 and the second end member 20 are connected at right angles to each other, and the partition 230 is also formed at a right angle corresponding to the angle between the first end member 10 and the second end member 20, so as to match and allow adjacent sides of the partition 230 to abut against the first end member 10 and the second end member 20 respectively.

[0054] Continue to refer to Figures 1-3 The fixing clamp also includes a limiting structure 400, which is connected to the fixing structure 200 and can extend into the second opening 220 and abut against the side of the second end piece 20. The limiting structure 400 can fix the second end piece 20 in the second opening 220 in a first direction.

[0055] Specifically, there are two limiting structures 400. The two limiting structures 400 are disposed on opposite sides of the fixing structure 200 and can respectively abut against opposite sides of the second end member 20 to reliably position the second end member 20 in the first direction.

[0056] More specifically, the limiting structure 400 includes a screw portion 410, and the side of the fixing structure 200 has a screw hole communicating with the second through-hole 220. The screw portion 410 is screwed through the screw hole and extends into the second through-hole 220. This arrangement facilitates reliable installation of the screw portion 410 on the fixing structure 200 and allows for adjustment of the depth of the screw portion 410 extending into the second through-hole 220 to accommodate the fixing of second end pieces 20 of different sizes.

[0057] More specifically, the limiting structure 400 also includes an operating head 420. The operating head 420 is fixedly disposed at one end of the screw portion 410, and its cross-sectional area is larger than that of the screw portion 410, making it easy for the operator to hold.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fixing fixture, characterized in that, include: A support structure (100) is provided along the stacking direction of the plurality of cells (1); A fixed structure (200) is movably disposed on the support structure (100) and can move along the stacking direction of the plurality of battery cells (1); the fixed structure (200) is provided with a first port (210), a second port (220) and a partition (230), the partition (230) being located between the first port (210) and the second port (220), the first end piece (10) of the flow bus is positioned through the first port (210), the second port (220) corresponds to the second end piece (20) of the flow bus, the second end piece (20) is positioned in the second port (220) and presses against the battery cell (1), the first end piece (10) and the second end piece (20) are connected to each other at an angle.

2. The fixing clamp according to claim 1, characterized in that, The fixing fixture also includes a slide rail structure (300), which is arranged parallel to the stacking direction of the plurality of battery cells (1) and is disposed on the support structure (100). The fixing structure (200) is slidably connected to the slide rail structure (300).

3. The fixing clamp according to claim 1, characterized in that, The second port (220) has a bottom opening and a top opening on opposite sides. The bottom opening is less than the top opening is less than the top opening. The second end piece (20) can enter the second port (220) through the bottom opening. The cross-sectional area of ​​the top opening is less than the cross-sectional area of ​​the second end piece (20).

4. The fixing clamp according to claim 3, characterized in that, A limiting part (221) is provided on the periphery of the top opening, and the limiting part (221) can press against the side of the second end piece (20) away from the battery cell (1).

5. The fixing clamp according to claim 3, characterized in that, The cross-sectional area of ​​the bottom opening is greater than the cross-sectional area of ​​the second end piece (20); and / or, The cross-sectional area of ​​the first port (210) is greater than the cross-sectional area of ​​the first end piece (10).

6. The fixing clamp according to claim 1, characterized in that, The partition (230) can press against the angle between the first end member (10) and the second end member (20), and the adjacent sides of the partition (230) respectively abut against the first end member (10) and the second end member (20).

7. The fixing clamp according to claim 1, characterized in that, The fixing clamp also includes a limiting structure (400), which is connected to the fixing structure (200) and can extend into the second opening (220) and abut against the side of the second end piece (20).

8. The fixing clamp according to claim 7, characterized in that, There are two limiting structures (400), which are disposed on opposite sides of the fixing structure (200) and can respectively abut against opposite sides of the second end piece (20).

9. The fixing clamp according to claim 7, characterized in that, The limiting structure (400) includes a screw part (410), and the side of the fixing structure (200) is provided with a screw hole communicating with the second through port (220). The screw part (410) is screwed through the screw hole and extends into the second through port (220).

10. The fixing clamp according to claim 1, characterized in that, The support structure (100) includes a lower support portion (110) and an upper limit portion (120). The upper limit portion (120) and the lower support portion (110) are spaced apart to form a guide space. The fixing structure (200) extends into the guide space and is movably connected to the lower support portion (110).

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