A lithium-ion battery welding fixture

Abstract

This utility model discloses a lithium-ion battery welding fixture, including a fixing frame, in which multiple lithium-ion batteries are arranged. Connecting pieces are welded onto the lithium-ion batteries, and each connecting piece includes multiple grooves and a set of pressure plates. The pressure plates are respectively fixed to the front and rear portions of the upper surface of the connecting piece. A locking block matching the groove is fixedly connected to each pressure plate, and the locking block does not protrude from the groove. A connecting plate is fixedly connected between the pressure plates. A sliding groove is formed in the connecting plate, and a baffle is inserted into the sliding groove. A cleaning plate is provided on the baffle. A limiting plate matching the pressure plates and connecting plates is provided on the fixing frame. The limiting plate is located outside the pressure plates and between the connecting plates. Compared with the prior art, this utility model's lithium-ion battery welding fixture can simultaneously press multiple connecting pieces onto designated positions on the lithium-ion batteries without manual pressing, reducing labor and increasing safety.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery welding technology, specifically relating to a lithium-ion battery welding fixture. Background Technology

[0002] During the assembly of lithium-ion batteries into a battery pack, multiple connectors need to be soldered to the positive and negative terminals of the battery. Typically, lithium-ion batteries are placed in a fixed rack, and the connectors need to be precisely placed in their designated positions on the battery for soldering.

[0003] In some small workshops or laboratories, due to the lack of specialized welding equipment, welding operations are often performed manually. To ensure welding quality, operators need to hold the connecting piece down with their hands while simultaneously welding with a welding torch. This manual operation is not only physically demanding, but also poses a safety risk, as there is a possibility of injury if the welding torch accidentally touches the fingers pressing the connecting piece. Utility Model Content

[0004] The purpose of this utility model is to provide a lithium-ion battery welding fixture that can solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0006] A lithium-ion battery welding fixture includes a fixed frame, in which multiple lithium-ion batteries are disposed. Connecting pieces are welded onto the lithium-ion batteries. Each connecting piece includes multiple grooves and a set of pressure plates. The pressure plates are respectively fixed to the front and rear portions of the upper end face of the connecting piece. A locking block that matches the groove is fixedly connected to the pressure plate. The locking block does not protrude from the groove. A connecting plate is fixedly connected between the pressure plates.

[0007] In one or more embodiments of this utility model, a sliding groove is provided in the connecting plate, and a baffle is inserted into the sliding groove.

[0008] In one or more embodiments of this utility model, a cleaning plate is provided on the baffle.

[0009] In one or more embodiments of this utility model, the fixing frame is provided with a limiting plate that matches the pressure plate and the connecting plate.

[0010] In one or more embodiments of this utility model, the limiting plate is located outside the pressure plate, and the limiting plate is located between the connecting plates.

[0011] In one or more embodiments of this utility model, a limiting groove is provided on the fixing frame, and a limiting post matching the limiting groove is fixedly connected to the bottom of the limiting plate.

[0012] In one or more embodiments of this utility model, the fixing frame is threaded with fixing bolts that match the limiting post.

[0013] In one or more embodiments of this utility model, pressure plates protrude from the front and rear edges of the connecting piece.

[0014] In one or more embodiments of this utility model, the card block includes an internal fixing block, and a fixing pad is provided on the outer side of the fixing block.

[0015] In one or more embodiments of this utility model, the connecting plate is located on the outside of the fixing frame.

[0016] Compared with the prior art, the lithium-ion battery welding fixture of this utility model can simultaneously press multiple connecting pieces onto the designated positions of the lithium-ion battery without the need for manual pressing, thus reducing labor and increasing safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the first usage state of a lithium-ion battery welding fixture according to an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the fixing frame structure of a lithium-ion battery welding fixture in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the pressure plate structure of a lithium-ion battery welding fixture in one embodiment of the present invention. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the pressure plate structure of a lithium-ion battery welding fixture in one embodiment of the present invention. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the first usage state of a lithium-ion battery welding fixture according to an embodiment of the present invention. Figure 2 ;

[0023] Figure 6This is a schematic diagram of the second usage state structure of a lithium-ion battery welding fixture in one embodiment of the present invention;

[0024] Figure 7 This is an exploded view of a lithium-ion battery welding fixture according to one embodiment of the present invention.

[0025] Explanation of key figure labels:

[0026] 11. Fixing frame; 12. Lithium-ion battery; 13. Connecting piece; 14. Groove; 21. Pressure plate; 211. Locking block; 22. Connecting plate; 23. Slide groove; 24. Baffle; 25. Cleaning plate; 31. Limiting plate; 32. Limiting post; 33. Limiting groove; 34. Fixing bolt. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this utility model, 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0028] like Figures 1 to 7 As shown, a lithium-ion battery welding fixture in one embodiment of the present invention includes a fixing frame 11, in which a plurality of lithium-ion batteries 12 are disposed. The lithium-ion batteries 12 are arranged sequentially in the fixing frame 11. The lithium-ion batteries 12 are divided into multiple groups, and the positive and negative electrodes of each adjacent group are oriented differently. Multiple connecting pieces 13 are welded onto the lithium-ion batteries 12. The connecting pieces 13 include multiple grooves 14.

[0029] It includes a set of pressure plates 21, which can be fixed to the front and rear parts of the upper surface of multiple connecting pieces 13 respectively. The bottom of the pressure plate 21 is fixedly connected to a locking block 211, which can be locked into the groove 14 located in the middle position. The locking block 211 does not protrude from the groove 14.

[0030] The clips 211 are arranged sequentially at the bottom of the pressure plate 21. The distance between the clips 211 matches the distance between the connecting pieces 13 and the lithium-ion battery 12. The pressure plate 21 can fix multiple connecting pieces 13 at one time and limit the position of the connecting pieces 13. The pressure plate 21 accurately places multiple connecting pieces 13 on top of the lithium-ion battery 12. The pressure plate 21 has a certain weight and can stably press the connecting pieces 13 in the accurate position so that they are not easily displaced. Then, the welding gun is held to perform welding.

[0031] After the middle connecting piece 13 is welded, the pressure plate 21 is lifted to separate the pressure plate 21 from the connecting piece 13. Then, the front and rear ends of the connecting piece 13 are welded. Welding the middle connecting piece 13 first makes it easier to weld the two ends of the connecting piece 13 later.

[0032] The locking block 211 includes an internal fixing block, and a fixing pad is provided on the outside of the fixing block. The fixing pad is an elastic rubber pad. The locking block 211 is not easy to be locked too tightly in the groove 14, so as to prevent the pressure plate 21 from being unable to detach from the connecting piece 13, or when the pressure plate 21 is lifted, the connecting piece 13 moves with the pressure plate 21 and bends, causing damage to the connecting piece 13.

[0033] The connecting plate 22 is located on the outside of the fixing frame 11. The connecting plate 22 can not only connect a set of pressure plates 21, but also act as a handle. The pressure plates 21 can be lifted by the connecting plates 22 on both sides, so that the pressure plates 21 can be separated from the connecting piece 13.

[0034] The connecting plate 22 has a groove 23, and a baffle 24 is inserted into the groove 23. The baffle 24 can slide in the groove 23. When it is temporarily impossible to weld all the connecting pieces 13 at once, the baffle 24 can cover the upper surface of the connecting piece 13, thus protecting the connecting piece 13.

[0035] A cleaning plate 25 is fixedly connected to the bottom of the baffle 24. The cleaning plate 25 is a sponge plate. When the connecting piece 13 is fixed on the pressure plate 21, the contact surface between the connecting piece 13 and the lithium-ion battery 12 can be cleaned by the cleaning plate 25 to prevent oil or dust from adhering to it, which would affect the quality of welding.

[0036] The fixing frame 11 is provided with a limiting plate 31 that matches the pressure plate 21. The limiting plate 31 is located outside the pressure plate 21 and between the connecting plates 22. The fixing frame 11 has a limiting groove 33. The bottom of the limiting plate 31 is fixedly connected to a limiting post 32 that matches the limiting groove 33. The pressure plate 21 protrudes from the front and rear edges of the connecting piece 13. The fixing frame 11 is threaded with a fixing bolt 34 that matches the limiting post 32.

[0037] Specifically, the limiting post 32 can be engaged in the limiting groove 33. The pressure plate 21 can limit the pressure plate 21 and the connecting plate 22, so that the pressure plate 21 and the connecting plate 22 will not move back and forth or left and right, thereby ensuring the stability of the connecting piece 13. When the connecting piece 13 is accurately placed on the lithium-ion battery 12 through the pressure plate 21, it prevents the pressure plate 21 or the connecting plate 22 from being accidentally touched during the welding process, which would cause the position of the connecting piece 13 to shift.

[0038] Furthermore, the limiting plate 31 can also press down on the front and rear edges of the connecting piece 13, and the fixing bolts 34 can abut against the limiting post 32 located in the limiting groove 33, increasing the stability of the limiting post 32. After the middle connecting piece 13 is welded, when the pressure plate 21 is lifted, the limiting plate 31 presses down on the outermost end of the connecting piece 13, preventing the connecting piece 13 from bending at the unwelded end of the connecting piece 13 when the pressure plate 21 is lifted, as the connecting piece 13 is stuck on the pressure plate 21, thus reducing the strength of the connecting piece 13. When the pressure plate 21 is lifted away from the connecting piece 13, the limiting plate 31 is removed, and the unwelded part of the connecting piece 13 is welded.

[0039] When using, refer to Figures 1 to 7 As shown, multiple connecting pieces 13 can be simultaneously fixed to the bottom of the pressure plate 21 according to the positions fixed on the lithium-ion battery 12. The connecting pieces 13 are accurately placed on the lithium-ion battery 12. The pressure plate 21 can press the connecting pieces 13 in place, so that the position of the connecting pieces 13 is not easily shifted. The middle part of the connecting piece 13 is welded. After the welding is completed, the pressure plate 21 pressing on both ends of the connecting piece 13 is removed, and then the two ends of the connecting piece 13 are welded.

[0040] Compared with the prior art, the lithium-ion battery welding fixture of this utility model can simultaneously press multiple connecting pieces onto the designated positions of the lithium-ion battery without the need for manual pressing, thus reducing labor and increasing safety.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lithium ion battery welding tooling, comprising a fixing frame, a plurality of lithium ion batteries are arranged in the fixing frame, a connecting sheet is welded on the lithium ion battery, the connecting sheet comprises a plurality of grooves, characterized in that, It includes a set of pressure plates, which are respectively fixed on the front and rear parts of the upper end face of the connecting piece. The pressure plates are fixedly connected with a locking block that matches the groove. The locking block does not protrude from the groove. The pressure plates are fixedly connected with a connecting plate.

2. The lithium-ion battery welding fixture of claim 1, wherein, The connecting plate has a sliding groove, and a baffle is inserted into the sliding groove.

3. The lithium-ion battery welding fixture of claim 2, wherein, A cleaning plate is provided on the baffle.

4. The lithium-ion battery welding fixture of claim 1, wherein, The fixing frame is equipped with a limiting plate that matches the pressure plate and the connecting plate.

5. The lithium-ion battery welding fixture of claim 4, wherein, The limiting plate is located outside the pressure plate and between the connecting plates.

6. The lithium-ion battery welding fixture of claim 4, wherein, The fixed frame has a limiting groove, and the bottom of the limiting plate is fixedly connected to a limiting post that matches the limiting groove.

7. A lithium-ion battery welding fixture according to claim 6, characterized in that, The fixing frame is threaded with fixing bolts that match the limiting post.

8. A lithium-ion battery welding fixture according to claim 1, characterized in that, Pressure plates protrude from the front and rear edges of the connecting piece.

9. A lithium-ion battery welding fixture according to claim 1, characterized in that, The card block includes an internal fixing block, and a fixing pad is provided on the outside of the fixing block.

10. A lithium-ion battery welding fixture according to claim 1, characterized in that, The connecting plate is located on the outside of the fixing frame.

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