An adjustable solar photovoltaic module string welding tool

Abstract

The utility model relates to an adjustable solar photovoltaic component series welding tool, including a seat body, a slide rail and a pressure needle assembly, the two ends of the slide rail are respectively connected to the seat body in a sliding manner and slide along the length direction of the seat body, the seat body is arranged with multiple slide rails along the length direction, the pressure needle assembly is connected to the slide rail in a sliding manner and slides along the length direction of the slide rail, and the pressure needle assembly is provided with a linkage member connecting the pressure needle assemblies of the adjacent slide rails, and the pressure needle assemblies of the multiple slide rails are connected in series in a straight line through the linkage member and slide synchronously. The utility model can move and adjust the position of the pressure needle assembly, and the pressure needle assembly in a straight line can move synchronously to press the welding points in a straight line on the battery cell, without adjusting the position of the pressure needle member one by one, reducing the manual adjustment time and improving the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to an adjustable solar photovoltaic component string welding tool. Background Art

[0002] At present, string welding is a key link in the manufacturing process of solar photovoltaic modules. It is mainly used to correctly connect qualified single-cell cells (with welding strips). The string welding machine tooling fixes and positions the cells, welding strips and other components to ensure the accuracy and stability of the welding process and prevent the cells from shifting or being damaged during the welding process. However, the string welding machine tooling of existing solar photovoltaic modules is usually of fixed size and cannot be compatible with various types of cells (such as different sizes: 182*91mm and 182*105mm, etc., different main grid spacing: 10.8mm, 10.9mm, 17.3mm, etc.). Therefore, when string welding cells of different types, it is necessary to replace tooling of different sizes, which not only increases production costs, but also easily induces welding abnormalities caused by poor string welding spacing, resulting in reduced production efficiency.

[0003] The prior art adjusts the position by arranging a slidable pressing needle piece on the string welding tool so as to position and weld the welding points of battery cells of different types. However, the pressing needle pieces on the prior art tool are independently distributed, while the welding points between adjacent battery cells are in a straight line. When the battery cells are pressed, the independent pressing needle pieces need to be moved one by one to align the welding points, which consumes a lot of manual adjustment time, is time-consuming and labor-intensive, and has low efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an adjustable solar photovoltaic component string welding tool, which can move and adjust the position of a pressing needle piece, and the pressing needle pieces in a straight line can move synchronously to press the welding points on the battery sheet in a straight line. There is no need to adjust the position of the pressing needle piece one by one, which reduces manual adjustment time and improves production efficiency.

[0005] The utility model is realized through the following technical scheme: an adjustable solar photovoltaic component string welding tool, comprising a base body, a slide rail and a pressure needle assembly, wherein the base body is arranged with a plurality of slide rails along the length direction, the pressure needle assembly is slidably connected to the slide rail and slides along the length direction of the slide rail, the pressure needle assembly is provided with a linkage member connecting the adjacent slide rail pressure needle assembly, and the pressure needle assemblies of the plurality of slide rails are connected in series on a straight line through the linkage member and slide synchronously.

[0006] In this solution, the pressure needle assembly can slide along the slide rail to adjust the longitudinal position so as to position the solder joints of battery cells with different main grid spacings. The pressure needle assemblies of multiple slide rails are connected into a straight line through a linkage, so that all the pressure needle assemblies on the straight line can move synchronously to position and press the solder joints on the straight line of adjacent battery cells. There is no need to adjust the pressure needle assemblies one by one, and the positioning is faster and more accurate, thereby improving the welding efficiency.

[0007] As an optimization, the two ends of the slide rail are respectively connected to the base body in a sliding manner and slide along the length direction of the base body. In this optimization solution, the slide rail slides along the base body to adjust the horizontal position so as to position battery cells of different sizes, which is more convenient to use.

[0008] As an optimization, the linkage comprises a connecting sleeve and a connecting rod respectively fixed to two adjacent pressure needle assemblies, and the connecting rod is inserted into the connecting sleeve and slidably connected to the connecting sleeve. In this optimization solution, the connecting rod slides and retracts in the connecting sleeve, so that each slide rail can slide along the seat body to adjust its position individually.

[0009] As an optimization, the connecting rod is fixedly connected with a clamping block adapted to the inner wall of the connecting sleeve, and the connecting sleeve is fixedly connected with a clamping ring adapted to the outer wall of the connecting rod. This optimization solution prevents the connecting rod from slipping out of the connecting sleeve through the cooperation of the clamping block and the clamping ring.

[0010] As an optimization, a limiting hole matching the pressing needle assembly is provided on the slide rail, the limiting hole extends along the length direction of the slide rail, and the pressing needle assembly slides on the slide rail along the limiting hole. This optimization scheme limits the pressing needle assembly through the limiting hole to make the sliding stable.

[0011] As an optimization, a plurality of the limiting holes are evenly distributed along the length direction on the slide rail, and a pressing needle assembly is slidably connected to each limiting hole. This optimization solution limits the number of pressing needle assemblies in the limiting hole, so that the pressing needle assembly can move within the maximum range in the limiting hole.

[0012] As an optimization, the pressure needle assembly includes a sliding member, a pressure needle and a first fixing member, the sliding member is provided with a first mounting hole, the first fixing member passes through the first mounting hole to fix the sliding member on the slide rail, the pressure needle is fixed to the bottom of the sliding member, and the linkage member is arranged on the sliding member. In this optimization scheme, the sliding member slides along the slide rail and the pressure needle presses the solder joint.

[0013] As an optimization, the sliding member includes a first sliding part and a second sliding part, the first sliding part and the second sliding part are located at the upper and lower sides of the limiting hole and are fixed by the first fixing member. The detachable sliding part of this optimization solution is easy to install.

[0014] As an optimization, the seat body includes a base and a C-shaped guide rail extending along the length direction of the base, the inner cavity of the C-shaped guide rail slides to fit the slider, and the end of the slide rail is fixedly connected to the slider. This optimization solution stabilizes the sliding installation of the slider and the C-shaped guide rail, so that the slide rail can move smoothly.

[0015] As an optimization, a second mounting hole and a second fixing member are provided on the slider, and a mounting groove is provided on the outer wall of the base. The mounting groove extends along the length direction of the base and penetrates the base and the inner cavity of the C-shaped guide rail in the thickness direction to communicate with each other. The second fixing member passes through the mounting groove and the second mounting hole to fix the slide rail on the base. This optimization solution fixes the base and the slide rail into a whole through the second fixing member, so that the slide rail can be stably fixed to the battery cell after positioning to prevent poor welding.

[0016] The beneficial effects of the utility model are as follows: the two ends of the slide rail can adjust the lateral position by sliding the slider along the C-shaped guide rail, and the pressure needle assembly can adjust the longitudinal position by sliding along the limiting hole, which meets the requirements of positioning and serial welding of solder joints of battery cells of different versions and saves costs; and the pressure needle assemblies of multiple slide rails are connected into a straight line through a linkage part, so that the overall pressure needle assembly on the straight line can be synchronously moved and adjusted to position and press the solder joints on the straight line of adjacent battery cells, without the need to adjust the pressure needle assembly one by one, so that the positioning is faster and more accurate, and the positioning welding efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection between the slide rail and the seat body;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the slide rail;

[0021] Figure 5 It is a schematic diagram of the series structure of the pressure needle assembly and the linkage;

[0022] Figure 6 It is a schematic diagram of the pressure needle assembly and the limiting hole structure;

[0023] Figure 7 for Figure 5 A magnified view of part A;

[0024] Figure 8 It is a schematic diagram of the structure of the needle pressing assembly;

[0025] Fig. 9 Schematic diagram of the internal structure of the linkage;

[0026] As shown in the figure:

[0027] 1. seat body, 10. base, 20. C-shaped guide rail, 201. second mounting hole, 202. second fixing member, 30. slider, 301. mounting groove, 40. slide rail, 41. limiting hole, 50. press needle assembly, 501. sliding member, 501a. first sliding part, 501b. second sliding part, 502. press needle, 503. first mounting hole, 504. first fixing member, 60. linkage member, 601. connecting sleeve, 602. connecting rod, 603. clamping block, 604. clamping ring. DETAILED DESCRIPTION

[0028] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0029] like Figures 1 to 9 As shown, an adjustable solar photovoltaic module string welding tool, such as Figure 1 As shown, it includes two parallel and opposite base bodies 1, at least three slide rails 40 arranged along the length direction of the base body 1, and at least three pressing needle assemblies 50 are arranged on the slide rails 40.

[0030] In order to position cells with different main grid spacings, the pressure pin assembly 50 is slidably connected to the slide rail 40 and slides along the length direction of the slide rail 40. Figure 4 , 6 As shown, a plurality of limiting holes 41 matching the pressing needle assembly 50 are evenly distributed on the slide rail 40 along the length direction, the limiting holes 41 extend along the length direction of the slide rail 40, and the pressing needle assembly 50 slides on the slide rail along the limiting holes 41. The number of the limiting holes 41 is the same as the number of the pressing needle assemblies 50, and a pressing needle assembly is slidably connected to each limiting hole.

[0031] like Figure 6 , 8 As shown, the pressure needle assembly 50 includes a sliding member 501, a pressure needle 502 and a first fixing member 504. Specifically, the sliding member 501 includes a first sliding portion 501a and a second sliding portion 501b, which are located at the upper and lower sides of the limiting hole 41 and are detachably fixed by the first fixing member 504, so as to facilitate disassembly and assembly. In this embodiment, two opposite sliding grooves are provided at the connection between the first sliding portion 501a and the second sliding portion 501b, and the depth and width of the sliding grooves are adapted to the limiting hole 41. After the first sliding portion and the second sliding portion are fixed up and down, they are engaged with the limiting hole of the slide rail through the sliding grooves and slide along the limiting hole.

[0032] Specifically, two first mounting holes 503 are provided in the middle of the sliding member 501, and the first mounting holes 503 penetrate the first sliding part 501a in the height direction and extend into the second sliding part 501b. The first fixing member 504 passes through the first mounting hole 503 of the first sliding part from top to bottom and is screwed with the first mounting hole 503 of the second sliding part, thereby fixing the first sliding part and the second sliding part on the limiting hole of the slide rail. In this embodiment, the first fixing member 504 is a fastening screw.

[0033] like Figure 8 As shown, the pressing needle 502 is fixed at the bottom of the second sliding portion 501b. The pressing needle 502 in this embodiment is used to press the welding strip, which is a conventional technology and will not be described in detail here.

[0034] The welding points between adjacent battery cells are in a straight line. In order to enable the pressing needle assemblies 50 of the multiple slide rails 40 to slide synchronously and simultaneously position and press the welding points in a straight line, such as Figure 5 As shown, the pressing needle assembly 50 is provided with a linkage member 60 connecting the pressing needle assemblies 50 of the adjacent slide rails, and the pressing needle assemblies 50 of the plurality of slide rails 40 are connected in series on a straight line through the linkage member 60 and slide synchronously. Figure 1 As shown, the linkage member 60 of this embodiment connects the pressure needle assembly 50 in series on a straight line perpendicular to the slide rail 40, so that the positioning is more accurate.

[0035] like Figure 7 As shown, specifically, the linkage 60 includes a connecting sleeve 601 and a connecting rod 602, one end of the connecting sleeve 601 and one end of the connecting rod 602 are respectively fixed to the first sliding parts 501a of two adjacent needle pressing assemblies 50, and the end of the connecting rod 602 away from the first sliding part is inserted into the connecting sleeve 601 from the end of the connecting sleeve away from the first sliding part, so that the connecting rod can slide and retract in the connecting sleeve, and the sliding and retracting direction of the connecting rod 602 is set parallel to the sliding direction of the slide rail 40.

[0036] like Fig. 9 As shown, in this embodiment, the length of the connecting sleeve 601 is greater than the length of the connecting rod 602, and the inner diameter of the connecting sleeve is greater than the outer diameter of the connecting rod. In order to prevent the connecting rod and the connecting sleeve from detaching, the end of the connecting rod 602 located in the connecting sleeve 601 is fixed with a clamping block 603, and the clamping block is adapted to the inner wall of the connecting sleeve. The end of the connecting sleeve 601 away from the first sliding portion is fixed with a clamping ring 604 mounted on the connecting rod 602, and the inner diameter of the clamping ring is adapted to the outer diameter of the connecting rod.

[0037] In order to be suitable for battery cells with different sizes and spacings, the two ends of the slide rail 40 are respectively slidably connected to the two base bodies 1 and slide along the length direction of the base body 1.

[0038] like Figure 1 , 2As shown in Figure 3, specifically, the seat body 1 includes a base 10 and a C-shaped guide rail 20 fixed to the inner wall of the base, and the C-shaped guide rail 20 is extended along the length direction of the base 10. In order to enable the slide rail 40 to move smoothly, the inner cavity of the C-shaped guide rail 50 is slidably adapted with a slider 30, and the width and height of the slider 30 are less than or equal to the width and height of the inner wall of the C-shaped guide rail 20, so that the slider is just installed in the C-shaped guide rail without shaking, and the two ends of the C-shaped guide rail are blocked to prevent the slider from sliding out. The open end of the C-shaped guide rail is arranged opposite to the end of the slide rail, and the end of the slide rail 40 penetrates into the opening of the C-shaped guide rail 20 and is fixed to the slider 30, so that the slide rail can move smoothly.

[0039] To facilitate the connection and fixation between the slide rail 40 and the slider 30, a second mounting hole 201 and a second fixing member 202 are provided on the slider 30. In this embodiment, the second mounting hole 201 passes through the entire slider 30 along the length direction of the slide rail 40 and extends into the slide rail 40. The second fixing member 202 passes through the second mounting hole 201 on the slider and is screwed and fixed to the second mounting hole 201 of the slide rail. In this embodiment, the second fixing member 202 is also a fastening screw.

[0040] In order to prevent the slide rail 40 from being displaced after positioning, which may cause poor welding, a mounting groove 301 is provided on the outer wall of the base 10. The mounting groove 301 extends along the length direction of the base 10 and does not penetrate the base. The mounting groove 301 penetrates the base 10 along the thickness direction of the base and communicates with the inner cavity of the C-shaped guide rail 20. The second fixing member 202 passes through the mounting groove 301 and is screwed with the second mounting hole 201 to fix the slide rail 40 on the base body 1.

[0041] It can be imagined that the function of the second fixing member 202 is to fix the base 10, C-shaped guide rail 20, slider 30 and slide rail 40, so the length of the second fixing member 202 cannot be greater than the sum of the base thickness, the guide rail thickness, and the depth of the second mounting hole in the slider and the slide rail.

[0042] Taking into account the safety of the tooling during use, the edges of the base 10, the C-shaped guide rail 20 and the slider 30 are all provided with rounded corners according to the edges of the tooling that are touched during the adjustment process.

[0043] Working principle: When positioning and serially welding the solder joints of battery cells of different versions, loosen the second fixing members 202 at both ends of the slide rail 40, and push the slide rail 40 to slide along the C-shaped guide rail 20, so as to adjust the spacing between adjacent pressure needle assemblies 50 of adjacent slide rails 40. After adjusting the positioning, tighten the second fixing member 202 to fix the slide rail and the seat to prevent the slide rail from moving.

[0044] Then, the pressure needle assembly 50 is moved to slide along the limiting hole 41, so that the spacing between the pressure needle assemblies 50 on the same slide rail 40 can be adjusted to meet the requirements of positioning and serial welding of solder joints of battery cells of different versions, saving costs; and the pressure needle assemblies 50 of multiple slide rails 40 are connected into a straight line through a linkage 60, so that the pressure needle assemblies on the straight line can be synchronously moved and adjusted to position and press the solder joints on the straight line of adjacent battery cells, so that the positioning is faster and more accurate, and the positioning welding efficiency is improved.

[0045] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. An adjustable solar photovoltaic assembly string welding tool, comprising a base (1), a slide rail (40) and a pressure pin assembly (50), characterized in that: The seat body (1) is provided with a plurality of slide rails (40) arranged along the length direction; the pressing needle assembly (50) is slidably connected to the slide rail (40) and slides along the length direction of the slide rail (40); a linkage member (60) is provided on the pressing needle assembly (50) for connecting the pressing needle assembly (50) of the adjacent slide rail; the pressing needle assemblies (50) of the plurality of slide rails (40) are connected in series on a straight line through the linkage member and slide synchronously.

2. The adjustable solar photovoltaic assembly string welding tool according to claim 1, characterized in that: Both ends of the slide rail (40) are respectively slidably connected to the seat body (1) and slide along the length direction of the seat body.

3. The adjustable solar photovoltaic assembly string welding tool according to claim 2, characterized in that: The linkage member (60) comprises a connecting sleeve (601) and a connecting rod (602) respectively fixed to two adjacent pressure needle assemblies (50); the connecting rod (602) is inserted into the connecting sleeve (601) and is slidably connected to the connecting sleeve.

4. The adjustable solar photovoltaic assembly string welding tool according to claim 3 is characterized by: The connecting rod (602) is fixedly connected with a clamping block (603) adapted to the inner wall of the connecting sleeve (601), and the connecting sleeve (601) is fixedly connected with a clamping ring (604) adapted to the outer wall of the connecting rod (602).

5. The adjustable solar photovoltaic assembly string welding tool according to claim 1, characterized in that: The slide rail (40) is provided with a limiting hole (41) matching the pressing needle assembly (50), the limiting hole extending along the length direction of the slide rail (40), and the pressing needle assembly slides on the slide rail along the limiting hole.

6. The adjustable solar photovoltaic assembly string welding tool according to claim 5, characterized in that: A plurality of the limiting holes (41) are evenly distributed along the length direction on the slide rail (40), and a pressing needle assembly is slidably connected to each limiting hole.

7. The adjustable solar photovoltaic assembly string welding tool according to claim 6, characterized in that: The pressure needle assembly (50) comprises a sliding member (501), a pressure needle (502) and a first fixing member (504); the sliding member (501) is provided with a first mounting hole (503); the first fixing member (504) passes through the first mounting hole (503) to fix the sliding member (501) on the slide rail (40); the pressure needle (502) is fixed to the bottom of the sliding member (501); and the linkage member (60) is arranged on the sliding member (501).

8. The adjustable solar photovoltaic assembly string welding tool according to claim 7, characterized in that: The sliding member (501) comprises a first sliding portion (501a) and a second sliding portion (501b), wherein the first sliding portion and the second sliding portion are located at the upper and lower sides of the limiting hole (41) and are fixed by the first fixing member (504).

9. The adjustable solar photovoltaic assembly string welding tool according to claim 1, characterized in that: The seat body (1) comprises a base (10) and a C-shaped guide rail (20) extending along the length direction of the base, the inner cavity of the C-shaped guide rail (20) is slidably adapted to fit the sliding block (30), and the end of the sliding rail (40) is fixedly connected to the sliding block (30).

10. The adjustable solar photovoltaic assembly string welding tool according to claim 9, characterized in that: The slide block (30) is provided with a second mounting hole (201) and a second fixing member (202); the outer wall of the base (10) is provided with a mounting groove (301), the mounting groove extending along the length direction of the base and penetrating through the base and communicating with the inner cavity of the C-shaped guide rail along the thickness direction; the second fixing member (202) passes through the mounting groove (301) and is connected with the second mounting hole (201) to fix the slide rail on the base body.

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