An electromagnetic welding system for photovoltaic junction boxes

Abstract

The invention discloses an electromagnetic welding system for a photovoltaic junction box, comprising a substrate, wherein a first fixing plate is fixedly connected to the bottom of one side of the substrate by bolts, a second fixing plate is arranged at the bottom of the first fixing plate, and a cylinder is installed on the upper surface of the second fixing plate away from the first fixing plate; when tinning operation is required, tin can be added to the busbar welding strip through a tin guide tube, and when tinning, since the adjustment block is rotatably connected to the fixing seat by a damping pin shaft, the tinning angle of the tin guide tube can be adjusted, and for large-sized products, the effect and efficiency are better than vertical tin supply, and at the same time, adjusting the position of the second fixing plate can drive the cylinder to move, thereby driving the tin guide tube to move, and can be used to adjust the optimal distance between the tin wire and the U-shaped coil according to tin wires of different diameters, so as to facilitate tinning work according to various different situations, and can be compatible with tinning and non-tinning, and has a good welding effect.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic welding of junction boxes, and in particular to an electromagnetic welding system for photovoltaic junction boxes. Background Art

[0002] In recent years, the welding of photovoltaic junction boxes on the market does not require additional tinning of resistance welding and hot pressure welding. It is sufficient to directly perform electromagnetic welding on the busbar welding strip (which itself contains the tin required for welding). In order to make the welding more stable, you can choose to further add tin to the busbar welding strip during welding to achieve the best effect. At present, there are few tinning welding methods in this industry. Some of them are also automatically tinned by the soldering iron tip, but this type of tinning of the soldering iron tip is unstable and the life of the soldering iron tip is extremely short. Some soldering that requires tinning is also done by manual tinning. For this reason, an electromagnetic welding system for photovoltaic junction boxes is proposed. Summary of the invention

[0003] The object of the present invention is to provide an electromagnetic welding system for a photovoltaic junction box to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electromagnetic welding system for a photovoltaic junction box, comprising a substrate, a first fixing plate is fixedly connected to the bottom of one side of the substrate by bolts, a second fixing plate is provided at the bottom of the first fixing plate, a cylinder is installed on the upper surface of the second fixing plate away from the first fixing plate, the output shaft of the cylinder passes through the second fixing plate and is fixedly connected to a fixing seat, an adjusting block is rotatably connected to the bottom of the fixing seat away from the first fixing plate by a damping pin, a tin guide tube passes through the upper surface of the adjusting block, first threaded through holes are symmetrically and evenly provided on one side of the substrate, a frame is provided on one side of the substrate, two second positioning grooves are symmetrically provided on the top of one side of the frame, the first threaded through hole and the second positioning groove are fixedly connected by bolts, and a pressure block is fixedly connected to the bottom of the frame by a spring.

[0005] As a further preferred embodiment of the present technical solution: two second threaded through holes are provided at the bottom of the first fixing plate, two first positioning grooves are provided on the upper surface of the second fixing plate, and the second threaded through holes are fixedly connected to the first positioning grooves by bolts.

[0006] As a further preferred embodiment of the technical solution: an electromagnetic induction machine is fixedly connected to a side of the substrate away from the first fixing plate, and a U-shaped coil is installed at the bottom of the electromagnetic induction machine.

[0007] As a further preferred embodiment of the present technical solution: the U-shaped coil includes a first arc-shaped portion, a second arc-shaped portion, a third arc-shaped portion and a U-shaped portion.

[0008] As a further preferred embodiment of the present technical solution: a slider is welded on the top of one side of the substrate close to the first fixed plate, a plate body is provided on one side of the slider, a slide rail is fixedly connected to one side of the plate body close to the substrate, and the slide rail is slidably connected to the slider.

[0009] As a further preferred embodiment of the technical solution: two limiting columns are symmetrically fixedly connected to one side of the plate body close to the base plate, two sliding rods are fixedly connected inside the base plate, and one end of the sliding rod passes through the limiting column.

[0010] As a further preferred embodiment of the technical solution: a third threaded through hole is formed at one end of the limiting column away from the plate body, through holes are evenly formed on the outer side wall of the sliding rod, and bolts are threadedly connected to the inner surface of the third threaded through hole.

[0011] As a further preferred embodiment of the technical solution: a second cylinder is installed on the top of one side of the plate body, and an output shaft of the second cylinder is fixedly connected to the top of the sliding block.

[0012] As a further preferred embodiment of the present technical solution: the tin guide tube is made of stainless steel.

[0013] As a further preferred embodiment of the technical solution: a foot seat is fixedly connected to the bottom of the frame, and the bottom of the pressing block and the U-shaped portion are both located inside the foot seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: when tinning operation is required, tin can be added to the busbar welding strip through the tin guide tube, and when tinning, since the adjustment block and the fixed seat are rotatably connected through the damping pin shaft, the tinning angle of the tin guide tube can be adjusted. For large-size products, the effect and efficiency are better than vertical tin supply. At the same time, adjusting the position of the second fixed plate can drive the cylinder to move, thereby driving the tin guide tube to move, and can be used to adjust the optimal distance between the tin wire and the U-shaped coil according to tin wires of different diameters, so as to facilitate tinning according to various different situations. When tinning is not needed, it is only necessary to press the busbar welding strip through the pressing block for electromagnetic welding. It is compatible with tinning and no tinning, and has a good welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 3 A schematic diagram of the connection method of the first fixing plate and the second fixing plate in the present invention;

[0018] Figure 4For the present invention Figure 2 Schematic diagram of the enlarged structure of area A.

[0019] In the figure: 1, plate body; 2, slide rail; 3, slider; 4, base plate; 401, first threaded through hole; 5, limit column; 6, slide rod; 7, first fixed plate; 701, second threaded through hole; 8, second fixed plate; 801, first positioning groove; 9, frame; 901, second positioning groove; 10, pressing block; 11, electromagnetic induction machine; 12, U-shaped coil; 1201, first arc-shaped portion; 1202, second arc-shaped portion; 1203, third arc-shaped portion; 1204, U-shaped portion; 13, cylinder; 14, fixing seat; 15, adjusting block; 16, tin guide tube; 17, foot seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1:

[0022] See also Figure 1-4 The present invention provides a technical solution: an electromagnetic welding system for a photovoltaic junction box, comprising a substrate 4, a first fixing plate 7 is fixedly connected to the bottom of one side of the substrate 4 by bolts, a second fixing plate 8 is provided at the bottom of the first fixing plate 7, a cylinder 13 is installed on the side of the upper surface of the second fixing plate 8 away from the first fixing plate 7, the output shaft of the cylinder 13 passes through the second fixing plate 8 and is fixedly connected to a fixing seat 14, an adjusting block 15 is rotatably connected to the bottom of the fixing seat 14 away from the first fixing plate 7 by a damping pin shaft, a tin guide tube 16 is passed through the upper surface of the adjusting block 15, first threaded through holes 401 are symmetrically and evenly opened on one side of the substrate 4, a frame 9 is provided on one side of the substrate 4, two second positioning grooves 901 are symmetrically opened on the top of one side of the frame 9, the first threaded through hole 401 and the second positioning groove 901 are fixedly connected by bolts, and a pressing block 10 is fixedly connected to the bottom of the frame 9 by a spring.

[0023] In this embodiment, specifically: two second threaded through holes 701 are provided at the bottom of the first fixing plate 7, and two first positioning grooves 801 are provided on the upper surface of the second fixing plate 8, and the second threaded through holes 701 are fixedly connected to the first positioning grooves 801 by bolts; through the above arrangement, loosen the bolts, slide the second fixing plate 8, and the second fixing plate 8 drives the cylinder 13 to move, thereby driving the tin guide tube 16 to move, which can be used to adjust the optimal distance between the tin wire and the U-shaped coil 12 according to tin wires of different diameters. After adjusting the position of the second fixing plate 8, the bolts can be fixed.

[0024] In this embodiment, specifically: an electromagnetic induction machine 11 is fixedly connected to a side of the substrate 4 away from the first fixing plate 7 , and a U-shaped coil 12 is installed at the bottom of the electromagnetic induction machine 11 .

[0025] In this embodiment, specifically: the U-shaped coil 12 includes a first arc portion 1201, a second arc portion 1202, a third arc portion 1203 and a U-shaped portion 1204; through the above settings, it can be combined with a pressing block 10 made of a non-magnetic and wear-resistant material to press the busbar welding strip before welding to ensure the welding quality. The material of the pressing block 10 is ceramic, which is resistant to high temperature, has high hardness, does not stick to tin, and is a non-magnetic and wear-resistant material.

[0026] In this embodiment, specifically: a slider 3 is welded on the top of one side of the base plate 4 close to the first fixed plate 7, a plate body 1 is provided on one side of the slider 3, a slide rail 2 is fixedly connected to one side of the plate body 1 close to the base plate 4, and the slide rail 2 is slidably connected to the slider 3.

[0027] In this embodiment, specifically: two limit columns 5 are symmetrically fixedly connected to one side of the plate body 1 close to the base plate 4, and two sliding rods 6 are fixedly connected inside the base plate 4, and one end of the sliding rod 6 passes through the limit column 5; through the above arrangement, the plate body 1 can play the role of sliding support for the base plate 4.

[0028] In this embodiment, specifically: a third threaded through hole is opened at one end of the limit column 5 away from the plate body 1, through holes are evenly opened on the outer wall of the sliding rod 6, and bolts are threadedly connected to the inner thread of the third threaded through hole; through the above arrangement, when it is necessary to adjust the height of the base plate 4, the bolt in the third threaded through hole is screwed out, and the base plate 4 can be slid up and down. After the adjustment is completed, the bolt is inserted into the through hole on the sliding rod 6 and the third threaded through hole, and the position of the base plate 4 can be fixed, which is manual adjustment.

[0029] In the present embodiment, specifically: the tin guide tube 16 is made of stainless steel; the tin guide tube 16 is made of stainless steel, which plays the role of accurately supplying tin to the tin bar. At the same time, because the tin guide tube 16 is made of metal, it will be subjected to electromagnetic heating. Therefore, the tin guide tube 16 needs to be lifted up during the non-welding period to avoid heating. The cylinder 13 drives the fixing seat 14 to move up and down, so as to complete the action of lifting the tin guide tube 16.

[0030] In this embodiment, specifically: the bottom of the frame 9 is fixedly connected with a foot seat 17, the bottom of the pressing block 10 and the U-shaped portion 1204 are both located inside the foot seat 17; the foot seat 17 is located below the pressing block 10, and the material of the pressing block 10 is ceramic, which is resistant to high temperatures, has high hardness, and is non-stick to tin. A cross groove is provided in the pressing block 10, and the soldering tin will be filled into the cross groove when it melts, so that the CCD can detect this mark to judge the welding quality later. At the same time, various shapes of slots can be provided in the pressing block 10, so that the shape of the soldering tin when it melts can be independently defined according to needs, so as to achieve multiple ways to facilitate the CCD to detect this mark to judge the welding quality later.

[0031] Embodiment 2:

[0032] The present invention also provides an embodiment, which is different from the first embodiment in that: an electromagnetic welding system for a photovoltaic junction box, comprising a substrate 4, a first fixing plate 7 is fixedly connected to the bottom of one side of the substrate 4 by bolts, a second fixing plate 8 is provided at the bottom of the first fixing plate 7, a fixing seat 14 is fixedly connected to the bottom of the second fixing plate 8, an adjusting block 15 is rotatably connected to the bottom of the fixing seat 14 away from the first fixing plate 7 by a damping pin, a tin guide tube 16 passes through the upper surface of the adjusting block 15, first threaded through holes 401 are symmetrically and evenly provided on one side of the substrate 4, a frame 9 is provided on one side of the substrate 4, two second positioning grooves 901 are symmetrically provided on the top of one side of the frame 9, the first threaded through hole 401 and the second positioning groove 901 are fixedly connected by bolts, and a pressing block 10 is fixedly connected to the bottom of the frame 9 by a spring.

[0033] In this embodiment: the tin-conducting tube 16 is made of a material that is not affected by magnetic heating, such as a tubular structure made of an aerogel nano-insulation board.

[0034] Through the above arrangement, when the tin guide tube 16 is made of a material that is not affected by magnetic heating, the cylinder 13 can be omitted to reduce costs.

[0035] Embodiment three:

[0036] The present invention also provides an embodiment, which is different from the first embodiment in that: an electromagnetic welding system for a photovoltaic junction box comprises a substrate 4, a first fixing plate 7 is fixedly connected to the bottom of one side of the substrate 4 by bolts, a second fixing plate 8 is provided at the bottom of the first fixing plate 7, a cylinder 13 is installed on the side of the upper surface of the second fixing plate 8 away from the first fixing plate 7, the output shaft of the cylinder 13 passes through the second fixing plate 8 and is fixedly connected to a fixing seat 14, an adjusting block 15 is rotatably connected to the bottom of the fixing seat 14 away from the first fixing plate 7 by a damping pin, a tin guide tube 16 is passed through the upper surface of the adjusting block 15, first threaded through holes 401 are symmetrically and evenly provided on one side of the substrate 4, a frame 9 is provided on one side of the substrate 4, two second positioning grooves 901 are symmetrically provided on the top of one side of the frame 9, the first threaded through hole 401 and the second positioning groove 901 are fixedly connected by bolts, and a pressing block 10 is fixedly connected to the bottom of the frame 9 by a spring.

[0037] In this embodiment, specifically: a slider 3 is welded on the top of one side of the base plate 4 close to the first fixed plate 7, a plate body 1 is provided on one side of the slider 3, a slide rail 2 is fixedly connected to one side of the plate body 1 close to the base plate 4, and the slide rail 2 is slidably connected to the slider 3.

[0038] In this embodiment, specifically: a second cylinder is installed on the top of one side of the plate body 1 , and the output shaft of the second cylinder is fixedly connected to the top of the slider 3 .

[0039] Through the above arrangement, the output shaft of the second cylinder can drive the base plate 4 to move up and down. Cooperating with the slide bar 6 and the limit column 5, the stability of the up and down movement of the base plate 4 can be improved, and there is no need to manually adjust the height of the base plate 4.

[0040] Working principle or structural principle, during welding, the U-shaped coil 12 cooperates with the non-magnetic and wear-resistant pressing block 10, and the pressing block 10 is in the middle of the U-shaped coil 12, which plays the role of pressing the busbar welding strip before welding to ensure the welding quality. The pressing block 10 is integrated with the frame 9, and a spring is fixed on the top of the pressing block 10, which can bounce after being pressed down. When tinning operation is required, tin can be added to the busbar welding strip through the tin guide tube 16, and when tinning, since the adjustment block 15 is rotatably connected to the fixing seat 14 through the damping pin shaft, the tinning angle of the tin guide tube 16 can be adjusted. For large-sized products, the effect and efficiency will be better than vertical tin supply. At the same time, adjusting the position of the second fixed plate 8 can drive the cylinder 13 to move. , thereby driving the tin guide tube 16 to move, and can be used to adjust the optimal distance between the tin wire and the U-shaped coil 12 according to tin wires of different diameters, so as to facilitate tinning according to various different situations. When tinning is not needed, it is only necessary to press the busbar welding strip through the pressing block 10 for electromagnetic welding. It is compatible with tinning and non-tinning, and realizes fully automatic welding. When the height of the pressing block 10 needs to be adjusted, the frame 9 is slid up and down by unscrewing the bolt in the second positioning groove 901, and the frame 9 drives the pressing block 10 to move up and down, so as to adjust the position of the pressing block 10. After the adjustment is completed, the position of the frame 9 can be fixed by inserting the bolt into the second positioning groove 901 and the first threaded through hole 401 to meet different requirements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic welding system for a photovoltaic junction box, comprising a substrate (4), characterized in that: The bottom of one side of the base plate (4) is fixedly connected to a first fixing plate (7) by bolts, the bottom of the first fixing plate (7) is provided with a second fixing plate (8), a cylinder (13) is installed on the upper surface of the second fixing plate (8) away from the first fixing plate (7), the output shaft of the cylinder (13) passes through the second fixing plate (8) and is fixedly connected to a fixing seat (14), the bottom of the side of the fixing seat (14) away from the first fixing plate (7) is rotatably connected to an adjustment block (15) via a damping pin, the upper surface of the adjustment block (15) passes through a tin guide tube (16), one side of the base plate (4) is symmetrically and evenly provided with first threaded through holes (401), one side of the base plate (4) is provided with a frame (9), and the top of one side of the frame (9) is symmetrically provided with two second positioning grooves (901), The first threaded through hole (401) and the second positioning groove (901) are fixedly connected by bolts, the bottom of the frame (9) is fixedly connected to a pressure block (10) by a spring, the bottom of the first fixing plate (7) is provided with two second threaded through holes (701), the upper surface of the second fixing plate (8) is provided with two first positioning grooves (801), the second threaded through holes (701) and the first positioning groove (801) are fixedly connected by bolts, the side of the base plate (4) away from the first fixing plate (7) is fixedly connected to an electromagnetic induction machine (11), the bottom of the electromagnetic induction machine (11) is installed with a U-shaped coil (12), and the U-shaped coil (12) comprises a first arc-shaped portion (1201), a second arc-shaped portion (1202), a third arc-shaped portion (1203) and a U-shaped portion (1204); A sliding block (3) is welded to the top of a side of the base plate (4) close to the first fixed plate (7); a plate body (1) is provided on one side of the sliding block (3); a sliding rail (2) is fixedly connected to a side of the plate body (1) close to the base plate (4); and the sliding rail (2) is slidably connected to the sliding block (3); Two limiting columns (5) are symmetrically and fixedly connected to one side of the plate body (1) close to the base plate (4); two sliding rods (6) are fixedly connected inside the base plate (4); one end of the sliding rod (6) passes through the limiting column (5); A third threaded through hole is formed at one end of the limiting column (5) away from the plate body (1), through holes are evenly formed on the outer wall of the sliding rod (6), and a bolt is threadedly connected to the inner surface of the third threaded through hole; A second cylinder is installed on the top of one side of the plate body (1), and the output shaft of the second cylinder is fixedly connected to the top of the slider (3); The bottom of the frame (9) is fixedly connected to a foot seat (17), and the bottom of the pressing block (10) and the U-shaped portion (1204) are both located inside the foot seat (17).

2. The electromagnetic welding system for photovoltaic junction boxes according to claim 1, characterized in that: The tin guide tube (16) is made of stainless steel.

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