Photovoltaic module string welding tool

Abstract

The utility model relates to a photovoltaic module string welding tool, including a pressure needle disk and a pressure needle bar mounted on the pressure needle disk, pressure needles are fixed on the pressure needle bar, first mounting holes are provided at both ends of the pressure needle bar, a pressure frame is fixed on the pressure needle disk and pressed on the pressure needle bar, a sliding hole corresponding to the first mounting hole is provided on the pressure frame, the first mounting hole is adapted to be equipped with a first fixing member, the first fixing member passes through the sliding hole and the first mounting hole and is screwed and fixed, and the sliding hole extends along the arrangement direction of the pressure needle bar. The utility model sets the first mounting hole on the pressure array bar, and the pressure needle bar is fixed by the first fixing member and the pressure frame. During string welding, if the first fixing member breaks in the first mounting hole, the corresponding pressure needle bar can be repaired and replaced, which greatly saves maintenance costs. The pressure needle bar slides along the sliding hole to adjust the position at will, without hole position restrictions, and the spacing between adjacent pressure needle bars can be adjusted at will, further improving the convenience of use.

Description

Technical Field

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

[0002] In the manufacturing process of solar photovoltaic modules, string welding is a key link, which is mainly used to correctly connect qualified single cells (with welding ribbons). In order to prevent the cells from shifting or being damaged during the welding process, string welding tools are needed to fix and position the cells, welding ribbons and other components to ensure the accuracy and stability of the welding process.

[0003] Existing welding tools such as Figure 4 As shown, it is composed of a pressure needle disc 1, a pressure needle strip 2, a pressure needle 3, and a fixing bolt; wherein the pressure needle strip 2 is provided with a plurality of pressure needles 3 distributed and fixed along the length direction, and a plurality of pressure needle strips 2 are arranged along the width direction on the pressure needle disc 1, and through holes are provided at both ends of the pressure needle strip, and two groups of bolt holes corresponding to the two through holes are provided on the pressure needle disc, and the pressure needle strip is fixed on the pressure needle disc by fixing bolts. The disadvantages of this tooling are:

[0004] 1. During string welding, the heating platform of the photovoltaic string welding machine is pressed on the pressure needle plate to heat the pressure needle bar at high temperature. The heating range of the heating platform is 14. Figure 4 As shown, heat is transferred to the welding strip through the pressure needles on the pressure needle bar for welding. Long-term use will cause the inner thread of the bolt hole on the pressure array plate to deform, so that when the pressure needle bar is disassembled, the fixing bolt will break in the bolt hole and it is difficult to repair. If it cannot be repaired, the entire pressure needle plate will be scrapped, which is costly.

[0005] 2. This kind of tooling is limited by the positions of the bolt holes at both ends, and the spacing between adjacent pressure needle strips is limited. The spacing cannot be adjusted at will, which is inconvenient to use. Utility Model Content

[0006] The utility model aims at the deficiencies of the prior art and provides a series welding tool which is cost-saving and convenient to use.

[0007] The utility model is realized through the following technical scheme: a photovoltaic module string welding tool, comprising a pressure needle disk and a plurality of pressure needle bars mounted on the pressure needle disk, the plurality of pressure array bars are arranged in parallel, pressure needles are provided on the pressure needle bars, a pressure frame is fixed on the pressure needle disk and pressed on the pressure needle bars, and both ends of the pressure needle bars are connected to the pressure frame and can move on the pressure frame.

[0008] The connection between the pressing bar and the pressing frame of the present invention is not restricted by the hole position on the pressing plate. The pressing bar can move relative to the pressing frame, and the spacing between adjacent pressing needle bars can be adjusted at will, thereby improving the convenience of use.

[0009] As an optimization, the two ends of the press frame are provided with sliding holes extending along the arrangement direction of the press bars, and the two ends of the press bars are respectively connected to the two sliding holes and move along the sliding holes. This optimization scheme limits the extension direction of the sliding holes and the movement direction of the press bars, and the ends of the press bars are connected to the sliding holes to realize the movement of the press bars on the press frame.

[0010] As an optimization, the sliding hole penetrates the pressing frame along the thickness direction of the pressing frame, and the two ends of the pressing needle strip are respectively provided with a first mounting hole, and the first mounting hole is adapted to be equipped with a first fixing member, and the first fixing member passes through the sliding hole and is connected with the first mounting hole to fix the pressing needle strip on the pressing frame. In this optimization scheme, the first mounting hole is set on the pressing array strip, and the first fixing member is connected with the first mounting hole to fix the pressing needle strip and the pressing frame. In this way, during string welding, if the first fixing member breaks in the first mounting hole, the corresponding pressing needle strip can be repaired, which is convenient for maintenance. Even if it cannot be repaired, only the pressing needle strip needs to be replaced and can be reused. Compared with the existing tooling that requires the replacement of the entire pressing needle plate, it greatly saves maintenance costs and has a good actual use effect.

[0011] As an optimization, a scale is provided on the pressing frame along the extension direction of the sliding hole. This optimization solution can accurately determine the adjustment spacing of the pressing needle strips through the scale, and is easy to use.

[0012] As an optimization, the needle pressing disk is provided with a second mounting hole, the pressing frame is provided with a through hole corresponding to the second mounting hole, the second mounting hole is adapted to be equipped with a second fixing member, the second fixing member passes through the through hole and is connected with the second mounting hole and fixes the pressing frame to the needle pressing disk. In this optimization solution, the second fixing member passes through the through hole and is screwed to the second mounting hole, thereby fixing the pressing frame to the needle pressing disk, which is convenient for disassembly and assembly and easy to use.

[0013] As an optimization, the second mounting hole is arranged outside the end of the pressing needle bar. In this optimization scheme, the second mounting hole does not affect the movement of the pressing needle bar, and the second mounting hole is located outside the pressing needle bar and is not within the heating range, thereby avoiding the breakage of the second fixing member.

[0014] As an optimization, a support block is provided between the pressing frame and the pressing needle disc, and the height of the support block is not less than the thickness of the end of the pressing needle strip. This optimization solution limits the height of the support block so that when the pressing frame is fixed on the pressing needle disc, the pressing frame will not press the pressing needle strip tightly, making it easier for the pressing needle strip to move and adjust its position.

[0015] As an optimization, two parallel and opposite support plates are fixedly connected to the outer walls of the two sides of the needle pressing disk. This optimization solution supports the two sides of the needle pressing disk through the support plates, thereby improving the stability of the needle pressing disk in use.

[0016] The beneficial effects of the utility model are as follows: a pressing frame is provided on the pressing needle bar, and the pressing frame is fixed on the pressing needle disk by a second fixing member. By setting the first mounting hole on the pressing array bar, the pressing needle bar is fixed by the first fixing member and the pressing frame. In this way, during string welding, if the first fixing member breaks in the first mounting hole, the corresponding pressing needle bar can be repaired. The maintenance is convenient. Even if it cannot be repaired, only the pressing needle bar needs to be replaced and it can be reused. Compared with the existing tooling that requires the replacement of the entire pressing needle disk, the maintenance cost is greatly saved, and the actual use effect is good. The pressing needle bar moves along the sliding hole, and the position can be adjusted by sliding along the sliding hole by loosening the first fixing member. It is not limited by the hole position of the pressing needle disk, and the pressing needle bar does not need to be completely disassembled. It is easy to use, and the spacing between adjacent pressing needle bars can be adjusted at will, further improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of the installation of the pressing frame and the pressing needle plate;

[0018] Figure 2 A three-dimensional schematic diagram of the installation of the pressing needle bar and the pressing frame;

[0019] Figure 3 It is a three-dimensional schematic diagram of the pressing needle and the pressing needle strip;

[0020] Figure 4 It is a top view of the existing string welding tool;

[0021] Figure 5 It is a top view of the utility model;

[0022] As shown in the figure:

[0023] 1. Press needle plate, 2. Press needle bar, 3. Press needle, 4. Press frame, 5. First mounting hole, 6. Sliding hole, 7. First fixing piece, 8. Second mounting hole, 9. Through hole, 10. Second fixing piece, 11. Support block, 12. Support plate, 13. Fixing plate, 14. Heating range of heating platform, 15. Scale. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0025] like Figures 1 to 5 As shown, a photovoltaic module string welding tool comprises a pressure needle plate and a plurality of pressure needle bars mounted on the pressure needle plate, the plurality of pressure array bars are arranged in parallel, pressure needles are provided on the pressure needle bars, a pressure frame is fixed on the pressure needle plate and pressed on the pressure needle bars, and both ends of the pressure needle bars are connected to the pressure frame and can move on the pressure frame.

[0026] The pressing needle plate 1, the pressing needle strip 2, and the pressing needle 3 are all conventional technologies. Figure 1As shown, the pressure needle disk 1 is a rectangular frame, and a rectangular opening is provided in the pressure needle disk 1 for placing the pressure needle strip. A fixing plate 13 is fixedly connected to the outer wall at one end of the pressure needle disk 1, and a mounting hole is opened on the fixing plate 13 for mounting the pressure needle disk on the photovoltaic string welding machine. In this embodiment, two parallel and opposite support plates 12 are fixedly connected to the outer walls on both sides of the pressure needle disk 1, and the support plates are supported on both sides of the pressure needle disk to improve the stability of the pressure needle disk. At least three pressure needle strips are arranged in parallel in the rectangular opening of the pressure needle disk described in this embodiment.

[0027] like Figure 3 As shown, the thickness of the middle part of the pressing needle strip 2 is greater than the thickness of the two ends, that is, the middle part is relatively thick and the two ends are relatively thin. The advantages are: the middle part is relatively thick and has sufficient bearing capacity, which can improve the stability of the pressing needle 3 fixed on the pressing needle strip 2; the two ends are relatively thin, which is convenient for placing the two ends of the pressing needle strip 2 on the pressing needle disk 1. The thicker middle part of the pressing needle strip 2 is located in the rectangular opening of the pressing needle disk 1, so that the middle part also has a guiding function, so that the pressing needle strip can move along the rectangular opening. The pressing needle 3 is vertically placed on the middle part of the pressing needle strip 2, and at least ten pressing needles are fixed in the middle part of the pressing needle strip. The thinner two ends of the pressing needle strip 2 in this embodiment are provided with a first mounting hole 5.

[0028] like Figure 2 As shown, the pressing frame 4 is also a rectangular frame, and a square opening corresponding to the rectangular opening of the pressing needle disk 1 is provided in the pressing frame 4, so that the heating platform of the photovoltaic string welding machine can heat the pressing needle strips on the pressing needle disk at high temperature through the square opening.

[0029] like Figure 1 As shown, the pressing frame is fixed on the pressing array plate. Specifically, the pressing needle plate 1 is provided with a second mounting hole 8, and the pressing frame 4 is provided with a through hole 9 corresponding to the second mounting hole 8. The second mounting hole 8 is adapted to be equipped with a second fixing member 10. The second fixing member 10 passes through the through hole 9 and is connected with the corresponding second mounting hole 8 to fix the pressing frame 4 on the pressing needle plate 1. In this embodiment, the second mounting hole 8 is a threaded hole, and the second fixing member 10 is a fixing bolt threadedly adapted to the second mounting hole 8.

[0030] like Figure 2 As shown, the pressing frame 4 of this embodiment is fixed by four second fixing members 10 and the pressing needle disk 1. The four second fixing members 10 are arranged in pairs at opposite ends of the pressing frame 4 to prevent the pressing frame from shifting during use. The four second mounting holes 8 are all arranged outside the end of the pressing needle strip 2, that is, the four second fixing members 10 are arranged outside the heating platform. The second mounting holes and the second fixing members are not within the heating range, so that the second fixing members are prevented from breaking in the second mounting holes without affecting the use of the pressing needle strip.

[0031] like Figure 1As shown, four support blocks 11 are arranged between the pressing frame 4 and the pressing needle disk 1 in this embodiment, and the height of the support blocks 11 is not less than the thickness of the end of the pressing needle strip 2. The four support blocks 11 are respectively located below the four through holes 9 of the pressing frame and are fixedly connected to the pressing frame 4. The second fixing member 10 passes through the through holes 9 and the support blocks 11 in sequence and is screwed to the second mounting hole 8 to improve the support stability.

[0032] like Figure 5 As shown, the two ends of the pressing frame 4 are provided with sliding holes 6 extending along the arrangement direction of the pressing bars 2, and the two ends of the pressing bars are respectively connected to the two sliding holes and move along the sliding holes.

[0033] Specifically, the two sliding holes 6 correspond to the first mounting holes 5 at both ends of the pressing bar, and the sliding holes 6 are arranged along the thickness direction of the pressing frame 4. The first mounting hole is adapted with a first fixing member 7, which passes through the sliding hole 6 and the corresponding first mounting hole 5 to connect and fix the pressing needle bar 2 on the pressing frame 4.

[0034] like Figure 5 As shown, the slide hole 6 of this embodiment is in the shape of a rectangular strip, and the two ends of the slide hole are arc transitions, so that the first fixing member can move along the slide hole to the maximum extent. It should be noted that the structural form of the slide hole 6 is not limited to the above-mentioned rectangular strip hole. Those skilled in the art can understand that, under the premise of ensuring that the pressure bar can move along the slide hole, slide holes of different structural forms can be selected according to needs, and no further explanation is given here.

[0035] In this embodiment, the first mounting hole 5 is a threaded hole, and the first fixing member 10 is a fixing bolt threadedly matched with the first mounting hole 8. By loosening the first fixing member 7, the pressure needle strip 2 can be slid along the sliding hole to adjust the position, and the pressure needle strip does not need to be completely disassembled, which is convenient to use. At the same time, there is no hole position restriction on the pressure needle disk 1, and the spacing between adjacent pressure needle strips 2 can be adjusted at will, further improving the convenience of use.

[0036] The pressing frame 4 is provided with a scale 15 along the extending direction of the sliding hole 6, through which the adjustment spacing of the pressing needle strips can be accurately determined, making it more convenient to use.

[0037] Working principle: The two ends of the pressing needle bar 2 are provided with a first mounting hole 5, the pressing needle bar 2 is fixed by a first fixing piece 7 and a pressing frame 4, a second mounting hole 8 is provided on the pressing needle disk 1, the pressing frame 4 is fixed by a second fixing piece 10 and the pressing needle disk 1, and the pressing needle disk 1 is installed on the photovoltaic string welding machine through the mounting hole on the fixing plate 13, so as to position and string weld the battery cells.

[0038] When the spacing between adjacent pressing needle strips 2 needs to be adjusted, the first fixing member 7 is loosened, and the pressing needle strip 2 is slid along the sliding hole 6 according to the scale 15 to adjust the position at will, without completely disassembling the pressing needle strip, which is easy to use and has no hole position restriction.

[0039] During string welding, if the first fixing part 7 breaks in the first mounting hole 5, the corresponding pressure needle strip 2 can be repaired. It is convenient to repair. Even if it cannot be repaired, only the pressure needle strip needs to be replaced and it can be reused. Compared with the existing tooling that requires replacing the entire pressure needle disk 1, it greatly saves maintenance costs and has a good actual use effect.

[0040] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0041] 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. A photovoltaic module string welding tool, comprising a pressure needle plate (1) and a plurality of pressure needle bars (2) mounted on the pressure needle plate, wherein the plurality of pressure array bars are arranged in parallel, and pressure needles (3) are provided on the pressure needle bars, characterized in that: A pressing frame (4) is fixedly provided on the pressing needle disc (1) and is pressed onto the pressing needle strip. Both ends of the pressing needle strip are connected to the pressing frame and can move on the pressing frame.

2. A photovoltaic module string welding tool according to claim 1, characterized in that: Sliding holes (6) extending along the arrangement direction of the pressure bars are provided at both ends of the pressure frame (4); the two ends of the pressure bars are respectively connected to the two sliding holes and move along the sliding holes.

3. A photovoltaic module string welding tool according to claim 2, characterized in that: The sliding hole penetrates the pressing frame along the thickness direction of the pressing frame, and first mounting holes (5) are respectively opened at both ends of the pressing needle strip (2). The first mounting holes are adapted to be equipped with first fixing members (7), and the first fixing members (7) pass through the sliding hole and are connected with the first mounting holes (5) to fix the pressing needle strip on the pressing frame.

4. A photovoltaic module string welding tool according to claim 2, characterized in that: The pressing frame (4) is provided with scales (15) along the extension direction of the sliding hole (6).

5. A photovoltaic module string welding tool according to claim 1, characterized in that: The needle pressing disk (1) is provided with a second mounting hole (8), the pressing frame (4) is provided with a through hole (9) corresponding to the second mounting hole (8), the second mounting hole (8) is adapted to be equipped with a second fixing member (10), the second fixing member (10) passes through the through hole and is connected to the second mounting hole (8) to fix the pressing frame to the needle pressing disk.

6. A photovoltaic module string welding tool according to claim 5, characterized in that: The second mounting hole (8) is arranged outside the end of the pressing needle strip (2).

7. A photovoltaic module string welding tool according to claim 1, characterized in that: A support block (11) is provided between the pressing frame (4) and the needle pressing disk (1), and the height of the support block is not less than the thickness of the end of the needle pressing strip (2).

8. The photovoltaic module string welding tool according to claim 1, characterized in that: Two parallel and opposite supporting plates (12) are fixedly connected to the outer walls of both sides of the needle pressing plate (1).

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