Pressing tool structure for fixing welding wire of battery piece

Abstract

The utility model discloses a hold-down fixture structure for fixing a welding wire of a battery piece, which comprises a hold-down fixture seat, a plurality of rows of hold-down fixture units are arranged on the hold-down fixture seat at intervals, each hold-down fixture unit comprises a plurality of hold-down fixture components arranged in a row, each hold-down fixture component comprises a pressing block, the pressing block is connected to the bottom of the hold-down fixture seat through an elastic connecting mechanism, and the elastic connecting mechanism is connected with the hold-down fixture seat. The multiple pressing blocks in the same column are used for pressing the same welding wire in a matched and segmented mode. The two sides of the hold-down clamp seat are respectively provided with a magnetic attraction fixing seat facilitating grabbing of the hold-down clamp, and the bottom of the hold-down clamp seat is further provided with an anti-skid structure. By designing the pressing blocks distributed in an array mode, the welding wires can be pressed downwards in a sectional mode through cooperation of the multiple pressing blocks, the pressing blocks are long-strip-shaped blocks, uniform pressure is guaranteed when the pressing blocks make surface contact with the welding wires on the glue-coated battery pieces, the pressing blocks are elastically installed, and hidden cracks of the battery pieces can be avoided when the pressing blocks are pressed; the hold-down device can ensure a good curing effect, can realize synchronous carrying with the battery piece, accelerates the production rhythm, and improves the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component processing, in particular to a pressing tool structure used for fixing a battery sheet welding wire. Background Art

[0002] The existing battery cell pressing tool structure is a hollow circular disk fixed at two points. When fixing the welding wire of the battery cell with glue brushing, the glue can only be partially removed, and it cannot be guaranteed that the welding wire is completely pressed to remove the glue, resulting in the welding wire not being completely immersed in the welding glue. This in turn affects the heating of the battery cell in the curing furnace. The glue and welding wire on the battery cell will be heated unevenly, resulting in poor welding. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pressing fixture structure for fixing the welding wire of a battery cell, aiming to solve the technical problem that the two-point fixed pressing fixture structure in the prior art cannot fully press the welding wire, resulting in uneven heating of the welding glue and the welding wire when the battery cell is cured, causing poor welding.

[0004] The technical solution of the utility model is: a press structure for fixing battery cell welding wire, including a press seat, on which a plurality of rows of press units are arranged at intervals, each press unit includes a plurality of press assemblies arranged in a row, each press assembly includes a press block, and the press block is connected to the bottom of the press seat through an elastic connection mechanism, and a plurality of press blocks in the same row are used to cooperate in pressing down the same welding wire in sections; magnetic fixing seats for facilitating the grasping of the press are respectively provided on both sides of the press seat, and an anti-slip structure is also provided at the bottom of the press seat.

[0005] Furthermore, in the utility model, a plurality of the pressing tool units are arranged at equal intervals, and the distance between two adjacent pressing tool components in each pressing tool unit is the same.

[0006] Furthermore, the elastic connection mechanism in the utility model includes two guide shafts respectively connected to the pressing block, the guide shafts are installed on the pressing seat through springs, and the other ends of the guide shafts pass through the pressing seat and are fixed by the first retaining ring.

[0007] Furthermore, the pressing block in the utility model is embedded in the bottom of the guide shaft and fixed by a positioning pin and a second retaining ring.

[0008] Furthermore, the magnetic fixing seat in the utility model is provided with a knurled pattern.

[0009] Furthermore, the anti-slip structure in the utility model is a rubber pad.

[0010] Furthermore, the anti-slip structure in the utility model protrudes from the bottom surface of the press seat by 0.5 mm.

[0011] Compared with the prior art, the utility model has the following advantages: the press of the utility model can use the cooperation of multiple press blocks to press down the welding wire in sections by designing a press block distributed in an array. The press block is a long strip, and the surface contacts the welding wire on the battery cell with glue to ensure uniform pressure. In order to avoid hidden cracks in the battery cell when pressed, the press block is also elastically installed; and according to the process requirements, the welding wire on the battery cell with glue must always have a certain pressure and completely press the entire welding wire on the battery cell when entering the curing furnace. Therefore, magnetic fixing seats are designed on both sides of the press. Through the cooperation of the magnetic fixing seat and the magnet on the curing line, a certain suction force can be generated to generate downward pressure on the welding wire, so that the welding wire is easy to sink into the welding glue, ensuring a good curing effect. In addition, the magnetic fixing seat can also be used for the synchronous transportation of the press and the battery cell, which is convenient for the transportation mechanism to simultaneously adsorb the press (magnetic attraction) and the battery cell (vacuum attraction), thereby speeding up the production rhythm and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 AA section view;

[0014] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A part;

[0015] Figure 4 for Figure 1 BB cross-sectional view;

[0016] Figure 5 This is a schematic diagram of the material pressing state of the utility model;

[0017] Figure 6 for Figure 5 A partial enlarged schematic diagram of part B in the middle.

[0018] Among them: 1. press seat; 2. press unit; 3. press assembly; 31. press block; 32. elastic connection mechanism; 32a. guide shaft; 32b. spring; 32c. first retaining ring; 32d. positioning pin; 32e. second retaining ring; 4. magnetic fixing seat; 41. knurling pattern; 5. rubber pad; 6. curing line bottom plate; a. battery cell; a0. welding glue; b. welding wire. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0020] Example:

[0021] The attached drawings show a specific embodiment of a press structure for fixing a battery cell welding wire according to the present invention. Figure 1 It mainly includes a press seat 1, on which 24 rows of press units 2 are evenly spaced, each press unit 2 includes three press assemblies 3 arranged in a row, and the distance between two adjacent press assemblies 3 is the same.

[0022] Each press assembly 3 includes a press block 31, which is connected to the bottom of the press seat 1 through an elastic connection mechanism 32. The three press blocks 31 in the same row are used to cooperate in pressing down the same welding wire b in sections.

[0023] In this embodiment, combined with Figure 2 , Figure 3 The elastic connection mechanism 32 includes two guide shafts 32a respectively connected to the pressing block 31. The guide shafts 32a are installed on the press seat 1 through springs 32b. The other end of the guide shafts 32a passes through the press seat 1 and is fixed by a first retaining ring 32c. The pressing block 31 is embedded at the bottom of the two guide shafts 32a. The pressing block 31 is fixed to each guide shaft 32a by a positioning pin 32d and a second retaining ring 32e. Under the action of the spring 32b, the pressing block 31 can move up and down a certain distance relative to the press seat 1 to avoid hidden cracks in the battery cell due to lack of buffering when pressing down.

[0024] A magnetic fixing seat 4 is provided on both sides of the press seat 1, and a knurled pattern 41 is provided on the magnetic fixing seat 4. Figure 1 As shown. The magnetic fixing seat 4 can be used for synchronous transportation of the press and the battery cell, which is convenient for the transportation mechanism to simultaneously adsorb the press (magnetic attraction) and the battery cell (vacuum attraction). The knurled pattern 41 on the magnetic fixing seat 4 can reduce the magnetic contact area and prevent the pressure tool from being slightly driven by the electromagnet when the pressure tool is placed when it is taken or placed, causing damage to the electromagnetic sheet or displacement of the welding wire fixing position.

[0025] The bottom of the press seat 1 is also provided with an anti-skid structure, which is made of a rubber pad 5. Figure 4 As shown, the rubber pad 5 protrudes 0.5 mm from the bottom surface of the press seat 1. A total of four rubber pads 5 are installed at the bottom of the press seat 1 to increase friction and prevent slipping on the curing line, thereby causing damage to the battery cell and deviation of the welding wire position.

[0026] The pressing state of the press of the utility model is as follows Figure 5 As shown, combined with Figure 6 The pressing block 31 of the pressing tool is pressed down on the welding wire b. Through the cooperation of the magnetic fixing seats 4 on both sides and the magnets on the curing line bottom plate 6 (magnets are not shown), they attract each other and generate a certain suction force. The pressing block 31 exerts downward pressure on the welding wire b, making the welding wire b easy to sink into the welding glue a0, ensuring a good curing effect.

[0027] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any modifications made according to the spirit of the main technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A press structure for fixing a battery cell welding wire, characterized in that: The invention comprises a press seat (1), on which a plurality of rows of press units (2) are arranged at intervals, each press unit (2) comprises a plurality of press assemblies (3) arranged in a row, each press assembly (3) comprises a pressing block (31), the pressing block (31) is connected to the bottom of the press seat (1) via an elastic connection mechanism (32), and a plurality of pressing blocks (31) in the same row are used to cooperate in pressing down a same welding wire (b) in sections; both sides of the press seat (1) are respectively provided with magnetic fixing seats (4) for facilitating the grasping of the press, and the bottom of the press seat (1) is also provided with an anti-slip structure.

2. A press structure for fixing a battery cell welding wire according to claim 1, characterized in that: The plurality of pressing tool units (2) are arranged at equal intervals, and the distance between two adjacent pressing tool assemblies (3) in each pressing tool unit (2) is the same.

3. A press structure for fixing a battery cell welding wire according to claim 1, characterized in that: The elastic connection mechanism (32) comprises two guide shafts (32a) respectively connected to the pressing block (31); the guide shafts (32a) are mounted on the pressing seat (1) via springs (32b); the other end of the guide shafts (32a) passes through the pressing seat (1) and is fixed via a first retaining ring (32c).

4. A press structure for fixing a battery cell welding wire according to claim 3, characterized in that: The pressing block (31) is embedded in the bottom of the guide shaft (32a) and fixed by a positioning pin (32d) and a second retaining ring (32e).

5. A press structure for fixing a battery cell welding wire according to claim 1, characterized in that: The magnetic fixing seat (4) is provided with a knurled pattern (41).

6. A press structure for fixing a battery cell welding wire according to claim 1, characterized in that: The anti-slip structure is a rubber pad (5).

7. A press structure for fixing a battery cell welding wire according to claim 1, characterized in that: The anti-slip structure protrudes from the bottom surface of the press seat (1) by 0.5 mm.

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