Solder strip mounting rack and battery piece series welding machine

Abstract

The utility model provides a solder strip mounting rack, including vertical plate and a plurality of roll shaft mechanisms, each roll shaft mechanism includes thick shaft portion, thin shaft portion and two elastic clamps, thick shaft portion is rotatablely installed on the vertical plate, the root portion of thin shaft portion is connected with thick shaft portion, two elastic clamps are symmetrically arranged on the two sides of thin shaft portion, and the two elastic clamps are connected with the thick shaft portion. The elastic clamp comprises an elastic rod and a pressing protruding block arranged on the head portion of the elastic rod, the root portion of the elastic rod is connected with the thick shaft portion, and the pressing protruding block faces the thin shaft portion. The thin shaft part is used for penetrating through an inner hole of a tin-coated copper strip reel, and the pressing protruding block is used for clamping the outer wall of the tin-coated copper strip reel so as to fix a tin-coated copper strip. The utility model further provides a battery piece series welding machine. The welding strip mounting frame and the battery piece series welding machine have the advantages of being scientific in design, convenient to operate, high in replacement speed and high in practicability.

Description

Technical Field

[0001] The utility model relates to photovoltaic panel production equipment, in particular to a welding belt mounting frame and a battery cell string welding machine. Background Art

[0002] In the production process of photovoltaic panels, the voltage of a single cell is about 0.5V, which is much lower than the voltage required for actual use, so the cells need to be connected in series to obtain high voltage. When connecting in series, the whole cell needs to be cut into half cells without loss, and then multiple half cells are placed in position, tin-coated copper strips are laid in the middle, and the cells are overlapped. After the tin-copper and silver paste are melted under infrared light, the purpose of positive and negative series connection is achieved.

[0003] In the prior art, a stringer is generally used to connect battery cells in series. The stringer is provided with a feed rack on which multiple rollers are installed. The reel of the tin-coated copper strip is mounted on the rollers. To prevent it from falling off, the outer end of the roller is threadedly connected to a block to provide the tin-coated copper strip to the stringer. However, the tin-coated copper strip needs to be replaced frequently. There are many tin-coated copper strips on the feed rack. Each time it is replaced, the block needs to be removed first, and then replaced with a new tin-coated copper strip and then installed. The operation is relatively cumbersome.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0005] The purpose of the utility model is to address the deficiencies of the prior art, thereby providing a welding strip mounting rack and a battery cell string welding machine which are scientifically designed, convenient to operate, fast to replace and highly practical.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a welding strip mounting frame, comprising a vertical plate and multiple roller shaft mechanisms, the roller shaft mechanism comprising a thick shaft portion, a thin shaft portion and two elastic clips, the thick shaft portion is rotatably mounted on the vertical plate, the root of the thin shaft portion is connected to the thick shaft portion, the two elastic clips are symmetrically arranged on both sides of the thin shaft portion, the elastic clip comprises an elastic rod and a clamping protrusion arranged on the head of the elastic rod, the root of the elastic rod is connected to the thick shaft portion, and the clamping protrusion is arranged facing the thin shaft portion; the thin shaft portion is used to pass through the inner hole of the tin-coated copper strip reel, and the clamping protrusion is used to clamp the outer wall of the tin-coated copper strip reel to fix the tin-coated copper strip.

[0007] Based on the above, the front side surface and the rear side surface of the pressing protrusion are both arc-shaped surfaces.

[0008] Based on the above, the front side of the pressing protrusion is provided with an arc-shaped groove for fitting with the outer wall of the reel of the tin-coated copper strip.

[0009] Based on the above, the cross section of the elastic rod is in an arc shape.

[0010] The utility model also provides a battery cell string welding machine, comprising the welding belt mounting frame as described above.

[0011] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0012] (1) Taking advantage of the structural feature that two grooves are symmetrically arranged on the outer side of the reel of the tin-coated copper strip, two elastic clips are arranged, the thin shaft portion passes through the inner hole of the reel, the two elastic clips extend into the two grooves, and the outer wall of the reel is pressed by the pressing protrusion to fix the tin-coated copper strip. The tin-coated copper strip can be directly used to output the welding strip. When a roll of tin-coated copper strip is used up, the empty roll is pulled out forcefully and a new tin-coated copper strip is reinserted. The steps of disassembling and assembling the stopper are eliminated, thereby improving the replacement efficiency.

[0013] (2) The front side and the rear side of the clamping protrusion are both arc-shaped surfaces. When the clamping protrusion contacts the end of the reel, the clamping protrusion is automatically squeezed open, making insertion and removal easier.

[0014] (3) The arc-shaped groove is provided on the front side of the clamping protrusion, thereby increasing the contact area with the outer wall of the reel, thereby improving the clamping force; the cross-section of the elastic rod is set to be an arc shape, thereby improving the strength of the elastic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a welding strip mounting frame in the utility model.

[0016] Figure 2 It is a side view of the roller shaft mechanism in the utility model.

[0017] Figure 3 It is an end view of the roller shaft mechanism in the utility model.

[0018] Figure 4 It is an end view of the tin-coated copper strip in the utility model.

[0019] In the figure: 1. reel; 2. groove; 3. vertical plate; 4. thick shaft portion; 5. thin shaft portion; 6. elastic rod; 7. pressing protrusion; 8. arc-shaped groove. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described in detail below through specific implementation methods. Example 1

[0021] like Figure 4As shown, the two end surfaces of the tin-coated copper strip have the same structure, a reel 1 is arranged at the central axis, two grooves 2 are symmetrically arranged on both sides of the reel 1, and the reel 1 and the groove 2 share part of the side wall.

[0022] For the structure of tinned copper strip, such as Figure 1-3 As shown, a welding strip mounting frame is designed, including a vertical plate 3 and a plurality of roller shaft mechanisms, wherein the roller shaft mechanism includes a thick shaft portion 4, a thin shaft portion 5 and two elastic clips, wherein the thick shaft portion 4 is rotatably mounted on the vertical plate 3, and can be specifically mounted through a bearing; the root of the thin shaft portion 5 is connected to the thick shaft portion 4, and the two elastic clips are symmetrically arranged on both sides of the thin shaft portion 5, and the elastic clip includes an elastic rod 6 and a clamping protrusion 7 arranged at the head of the elastic rod 6, the root of the elastic rod 6 is connected to the thick shaft portion 4, and the clamping protrusion 7 is arranged facing the thin shaft portion 5; the thin shaft portion 5 is used to pass through the inner hole of the tin-coated copper strip reel 1, and the clamping protrusion 7 is used to clamp the outer wall of the tin-coated copper strip reel 1 to fix the tin-coated copper strip.

[0023] The front side and the rear side of the clamping protrusion 7 are both arc-shaped surfaces. When the clamping protrusion 7 contacts the end of the reel 1, the clamping protrusion 7 can be automatically squeezed open to make plugging and unplugging easier; the front side of the clamping protrusion 7 is provided with an arc-shaped groove 8 for fitting the outer wall of the reel 1 of the tin-coated copper strip, which increases the contact area and enables tighter pressing.

[0024] In order to improve the strength of the elastic clip, the cross section of the elastic rod 6 is in an arc shape.

[0025] During specific use, first use the thin shaft part 5 to pass through the inner hole of the reel 1, align the two grooves 2 with the two elastic clips, and when the tin-coated copper strip is pushed inward, the two elastic clips extend into the two grooves 2, and the outer wall of the reel 1 is pressed by the clamping protrusion 7 to fix the tin-coated copper strip, so that the welding strip can be output stably. When a roll of tin-coated copper strip is used up, the reel 1 can be slightly rotated to make the arc-shaped groove 8 detach from the outer wall of the reel 1, and the empty roll can be pulled out forcefully, and a new tin-coated copper strip can be reinserted. The steps of disassembling and assembling the block are eliminated, thereby improving the replacement efficiency. Example 2

[0026] The utility model also provides a battery cell string welding machine, comprising a welding strip mounting frame as described in Example 1.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A welding ribbon mounting frame, characterized in that: It includes a vertical plate and multiple roller mechanisms, the roller mechanisms include a thick shaft portion, a thin shaft portion and two elastic clips, the thick shaft portion is rotatably mounted on the vertical plate, the root of the thin shaft portion is connected to the thick shaft portion, two elastic clips are symmetrically arranged on both sides of the thin shaft portion, the elastic clip includes an elastic rod and a clamping protrusion arranged on the head of the elastic rod, the root of the elastic rod is connected to the thick shaft portion, and the clamping protrusion is arranged facing the thin shaft portion; the thin shaft portion is used to pass through the inner hole of the tin-coated copper strip reel, and the clamping protrusion is used to clamp the outer wall of the tin-coated copper strip reel to fix the tin-coated copper strip.

2. The welding ribbon mounting frame according to claim 1, characterized in that: The front side surface and the rear side surface of the pressing protrusion are both arc-shaped surfaces.

3. The welding ribbon mounting frame according to claim 2, characterized in that: The front side of the pressing protrusion is provided with an arc-shaped groove for fitting with the outer wall of the reel of the tin-coated copper strip.

4. The welding ribbon mounting frame according to any one of claims 1 to 3, characterized in that: The cross section of the elastic rod is in an arc shape.

5. A battery cell string welding machine, characterized in that: It comprises a welding strip mounting frame as described in any one of claims 1 to 4.

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