Battery cell bending device

Abstract

The utility model provides a battery cell bending device which comprises a base body, a bending mechanism and a bending mechanism, wherein the base body is provided with an accommodating part for accommodating a battery cell; the turnover piece is rotatably arranged at the end part of the base body; the limiting block is arranged on the turnover piece and protrudes out of the turnover piece, and the limiting block is in limiting fit with the end part of a protection plate of the battery cell; wherein the turnover piece has an initial state and an extrusion state, and when the turnover piece moves from the initial state to the extrusion state, the turnover piece can bend the protection plate. According to the technical scheme, the problem that the battery cell forming effect is affected due to the fact that the protection plate and the battery cell are prone to dislocation in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery protection plate forming, and in particular to a battery core bending device. Background Art

[0002] Before welding the battery cell, the battery protection plate needs to be bent to align it with the battery cell. To achieve rapid production, this process is accomplished using a battery protection plate forming device. The upper die of the device presses the battery protection plate toward the cell until it adheres.

[0003] In the related art, when the swing plate is folded, it can push the protective plate to move toward the battery cell. During the above movement process, the protective plate will be displaced due to the force, which will cause the protective plate and the battery cell to be misaligned, thereby affecting the molding effect of the battery cell. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery core bending device to solve the problem in the related art that the protection plate and the battery core are easily misaligned, thereby affecting the battery core forming effect.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a battery cell bending device, comprising: a base body, on which is provided a accommodating portion for accommodating the battery cell; a folding piece, rotatably arranged at the end of the base body; a limit block, arranged on the folding piece and protruding from the folding piece, the limit block and the end limit cooperation of the protective plate of the battery cell; wherein the folding piece has an initial state and an extrusion state, and when the folding piece moves from the initial state to the extrusion state, the folding piece can bend the protected plate.

[0006] Furthermore, the position of the limiting block is adjustable along the length direction of the protection plate.

[0007] Furthermore, a first connecting groove is provided on the folding member, the first connecting groove is provided along the length direction of the protection plate, and the position of the limit block is adjustably provided in the first connecting groove.

[0008] Furthermore, the folding member includes a folding plate and a connecting plate, the connecting plate is arranged on the folding plate, and the first connecting groove is arranged on the connecting plate.

[0009] Furthermore, the limiting block includes a main body and a first protruding portion, the first protruding portion is arranged on a side of the main body facing the base, and the first protruding portion is limitedly matched with the protective plate.

[0010] Furthermore, there are multiple limit blocks.

[0011] Furthermore, the battery cell bending device further includes a support member, which is arranged on the base and located at the end of the base facing the folding member.

[0012] Furthermore, a second connecting groove is provided on the base body, and the second connecting groove is located at the end of the base body facing the folding member, and the support member is movably provided in the second connecting groove along the extension direction of the second connecting groove.

[0013] Furthermore, the support member includes a support rod and a second protrusion, the second protrusion is located above the second connecting groove, and the support rod is inserted into the second connecting groove.

[0014] Furthermore, the battery cell bending device further comprises a stop block, which is provided on the folding piece. When the folding piece is in an extruded state, the stop block abuts and cooperates with the base.

[0015] Furthermore, the battery cell bending device also includes a base, the base is arranged on the base, and a connecting portion is provided on the base.

[0016] By applying the technical solution of the present invention, a receiving portion for accommodating the battery cell is provided on the base, and the folding piece is swingably provided at the end of the base. A limit block is provided on the folding piece, and the limit block can cooperate with the end limit of the protective plate of the battery cell. The folding piece has an initial state and an extrusion state. When the folding piece moves from the initial state to the extrusion state, the folding piece can bend the protective plate. Through the above-mentioned arrangement, when the folding piece is driven, the protective plate can be stopped by the limit block, thereby limiting the position of the protective plate, so that the protective plate can correspond to the battery cell. Therefore, the technical solution of the present application effectively solves the problem in the related art that the protective plate and the battery cell are easily misaligned, affecting the battery cell forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a battery cell bending device according to the present utility model is shown;

[0019] Figure 2 Shown Figure 1 A partial enlarged view of the cell bending device at point A;

[0020] Figure 3 Shown Figure 1 A schematic diagram of the three-dimensional structure of the battery cell bending device from another perspective;

[0021] Figure 4 Shown Figure 1A cross-sectional schematic diagram of a cell bending device;

[0022] Figure 5 Shown Figure 4 A partial enlarged view of point B of the battery cell bending device;

[0023] Figure 6 Shown Figure 1 A schematic diagram of the three-dimensional structure of the battery cell bending device without the battery cell installed;

[0024] Figure 7 Shown Figure 6 Schematic diagram of the exploded structure of the battery cell bending device.

[0025] The above drawings include the following reference numerals:

[0026] 10. Base; 11. Accommodating portion; 12. Second connecting groove; 20. Folding member; 21. First connecting groove; 22. Folding plate; 23. Connecting plate; 30. Limiting block; 31. Main body; 32. First protrusion; 40. Support member; 41. Support rod; 42. Second protrusion; 50. Stop block; 60. Base; 61. Connecting portion; 100. Battery cell; 101. Protective plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0030] like Figures 1 to 5 As shown, in this embodiment, the battery cell bending device includes: a base 10, a folding member 20, and a stopper 30. The base 10 is provided with a receiving portion 11 for accommodating the battery cell 100. The folding member 20 is rotatably disposed at the end of the base 10. The stopper 30 is disposed on the folding member 20 and protrudes from the folding member 20. The stopper 30 is engaged with the end of the protective plate 101 of the battery cell 100. The folding member 20 has an initial state and an extrusion state. When the folding member 20 moves from the initial state to the extrusion state, the folding member 20 can bend the protected plate 101.

[0031] Applying the technical solution of this embodiment, a receiving portion 11 for accommodating the battery cell is provided on the base 10, and the folding piece 20 is swingably provided at the end of the base 10. A limit block 30 is provided on the folding piece 20, and the limit block 30 can cooperate with the end limit of the protective plate 101 of the battery cell 100. The folding piece 20 has an initial state and an extrusion state. When the folding piece 20 moves from the initial state to the extrusion state, the folding piece 20 can bend the protective plate 101. Through the above-mentioned arrangement, when the folding piece 20 is driven, the protective plate 101 can be stopped by the limit block 30, and then the position of the protective plate 101 can be limited, so that the protective plate 101 can correspond to the battery cell 100. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the protective plate and the battery cell are easily misaligned, affecting the battery cell molding effect.

[0032] It should be noted that the protection plate 101 refers to PCM, which is a protection device for the battery and the intermediate bridge between the battery and the host. The technical solution of this embodiment can be applied to the pre-bending of a single battery cell or the pre-bending of a dual-cell PCM.

[0033] The technical solution of this embodiment involves a packaging method of polymer battery cell + PCM + adhesive tape. At present, the assembly of conventional battery pack is to fold the nickel sheet after spot welding, and then apply the PCM adhesive tape after bending the nickel sheet. The pre-folded plate is currently usually a fixed block. When the position of the tab changes, the jig must be redesigned, which makes the jig more limited. In order to solve the above technical problems, Figure 1 、 Figure 3 、 Figure 6 as well as Figure 7 As shown, in this embodiment, the position of the limit block 30 is adjustable along the length direction of the protective plate 101. The position of the limit block 30 is adjustable, so that the limit block 30 can adapt to battery cells of different sizes, thereby ensuring the versatility of the battery cell bending device.

[0034] By moving the limiting block 30 , the position of different nickel sheets can be adapted, making the use of the battery cell bending device more universal and diverse.

[0035] like Figure 1 、 Figure 3 、 Figure 6 as well as Figure 7 As shown, in this embodiment, the folding member 20 is provided with a first connecting groove 21, which is arranged along the length of the protective plate 101. The position-limiting block 30 is adjustably disposed in the first connecting groove 21. The structure of the first connecting groove 21 is simple and easy to set up. The position-limiting block 30 can move within the first connecting groove 21, thereby making the movement of the position-limiting block 30 easier.

[0036] like Figure 1 、 Figure 3 、 Figure 6 as well as Figure 7 As shown, in this embodiment, the folding member 20 includes a folding plate 22 and a connecting plate 23. The connecting plate 23 is disposed on the folding plate 22, and the first connecting groove 21 is disposed on the connecting plate 23. The provision of the folding plate 22 effectively compresses the protective plate 101, thereby forming the battery cell. The provision of the connecting plate 23 facilitates the provision of the first connecting groove 21.

[0037] Specifically, the folding plate 22 and the connecting plate 23 are arranged perpendicularly, and the center line of the first connecting groove 21 is arranged parallel to the folding plate 22 .

[0038] like Figure 2 and Figure 4As shown, in this embodiment, the stopper 30 includes a main body 31 and a first protrusion 32. The first protrusion 32 is provided on the side of the main body 31 facing the base 10, and the first protrusion 32 cooperates with the protective plate 101 to limit the position. This can make the position of the protective plate 101 more stable. Specifically, the cross-sectional area of ​​the first protrusion 32 is smaller than the cross-sectional area of ​​the main body 31, that is, the side of the first protrusion 32 away from the protective plate 101 is provided with an escape portion. The escape portion can avoid the battery cell 100, thereby preventing the battery cell from being squeezed when the protective plate 101 is bent.

[0039] like Figure 1 、 Figure 3 、 Figure 6 as well as Figure 7 As shown, in this embodiment, there are multiple limit blocks 30. The above arrangement enables the limit blocks 30 to correspond to the metal sheet, thereby ensuring the effect of cell shaping.

[0040] like Figure 6 and Figure 7 As shown, in this embodiment, the battery cell bending device further includes a support member 40, which is disposed on the base 10 and located at the end of the base 10 facing the folding member 20. The provision of the support member 40 can effectively support the metal sheet, thereby enabling the protective plate 101 to be bonded to the metal sheet, thereby achieving a better bonding effect between the protective plate 101 and the metal sheet.

[0041] like Figure 6 and Figure 7 As shown, in this embodiment, a second connecting groove 12 is provided on the base 10. The second connecting groove 12 is located at the end of the base 10 facing the folding member 20. The support member 40 is movably disposed in the second connecting groove 12 along the extension direction of the second connecting groove 12. The second connecting groove 12 is located below the metal sheet, and the support member 40 can move in the second connecting groove 12, thereby enabling the support member 40 to better support the metal sheet.

[0042] Specifically, there are a plurality of support members 40. The plurality of support members 40 can correspond to the tabs and support the tabs.

[0043] like Figure 6 and Figure 7 As shown, in this embodiment, the support member 40 includes a support rod 41 and a second protrusion 42. The second protrusion 42 is located above the second connecting groove 12, and the support rod 41 is inserted into the second connecting groove 12. The above arrangement can make the position of the support member 40 relatively stable, that is, the second protrusion 42 supports and cooperates with the base 10, which can ensure that the position of the support member 40 is relatively stable, and thus can effectively make the metal sheet and the protective plate 101 fit together.

[0044] like Figure 1 、 Figure 3 、 Figure 6 as well as Figure 7 As shown, in this embodiment, the battery cell bending device further includes a stopper 50, which is disposed on the folding member 20. When the folding member 20 is in the extruded state, the stopper 50 abuts against the base 10. The provision of the stopper 50 can limit the turning angle of the folding member 20, thereby preventing the folding member 20 from excessively bending and causing damage to the battery cell 100 or the metal sheet.

[0045] like Figure 1 、 Figure 3 、 Figure 6 as well as Figure 7 As shown, in this embodiment, the battery cell bending device further includes a base 60, on which the base 10 is disposed, and a connecting portion 61 is provided on the base 60. The provision of the base 60 can stabilize the position of the base 10, and the provision of the connecting portion 61 can effectively fix the base 60, thereby improving the stability of the battery cell during bending and shaping.

[0046] The use process of the battery cell bending device of this embodiment is as follows:

[0047] Install the battery cell 100 into the accommodating portion 11, positioning the protective plate 101 between the base 10 and the stopper 30. Adjust the positions of the support member 40 and the stopper 30 so that they correspond to the metal sheet. Fold the flap 22 so that it presses the protective plate 101 against the metal sheet. Once the stopper 50 contacts the base 10, return the flap 22 to its original position and remove the battery cell 100.

[0048] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A battery cell bending device, characterized in that: include: A base (10), wherein a receiving portion (11) for receiving the battery cell (100) is provided on the base (10); A folding member (20) is rotatably arranged at the end of the base (10); a limit block (30) disposed on the folding piece (20) and protruding from the folding piece (20), the limit block (30) being in position-limiting cooperation with an end portion of the protective plate (101) of the battery cell (100); The folding member (20) has an initial state and an extrusion state. When the folding member (20) moves from the initial state to the extrusion state, the folding member (20) can bend the protected plate (101).

2. The battery cell bending device according to claim 1, characterized in that: The position of the limiting block (30) is adjustable along the length direction of the protection plate (101).

3. The battery cell bending device according to claim 1, characterized in that: The folding member (20) is provided with a first connecting groove (21), the first connecting groove (21) being arranged along the length direction of the protection plate (101), and the position of the limiting block (30) is adjustably arranged in the first connecting groove (21).

4. The battery cell bending device according to claim 3, characterized in that: The folding member (20) comprises a folding plate (22) and a connecting plate (23), wherein the connecting plate (23) is arranged on the folding plate (22), and the first connecting groove (21) is arranged on the connecting plate (23).

5. The battery cell bending device according to claim 1, characterized in that: The limiting block (30) comprises a main body (31) and a first protruding portion (32), wherein the first protruding portion (32) is arranged on a side of the main body (31) facing the base (10), and the first protruding portion (32) is in position-limiting cooperation with the protective plate (101).

6. The battery cell bending device according to claim 1, characterized in that: There are multiple limit blocks (30).

7. The battery cell bending device according to claim 1, characterized in that: The battery cell bending device further comprises a support member (40), wherein the support member (40) is arranged on the base (10) and is located at the end of the base (10) facing the folding member (20).

8. The battery cell bending device according to claim 7, characterized in that: A second connecting groove (12) is provided on the base (10), the second connecting groove (12) is located at the end of the base (10) facing the folding member (20), and the support member (40) is movably provided in the second connecting groove (12) along the extension direction of the second connecting groove (12).

9. The battery cell bending device according to claim 8, characterized in that: The support member (40) comprises a support rod (41) and a second protruding portion (42), wherein the second protruding portion (42) is located above the second connecting groove (12), and the support rod (41) is inserted into the second connecting groove (12).

10. The battery cell bending device according to any one of claims 1 to 9, characterized in that: The battery cell bending device further comprises a stop block (50), which is arranged on the folding member (20). When the folding member (20) is in the extrusion state, the stop block (50) abuts against the base (10).

11. The battery cell bending device according to any one of claims 1 to 9, characterized in that: The battery cell bending device further comprises a base (60), the base (10) is arranged on the base (60), and a connecting portion (61) is provided on the base (60).

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