Soldering flux adding device for photovoltaic solder strip

Abstract

The utility model relates to the technical field of photovoltaic solder strips, and discloses a soldering flux adding device for a photovoltaic solder strip, which comprises a box body used for containing liquid soldering flux and a solder strip body in a photovoltaic solder strip roll unfolding state, a first pulley block is arranged on the box body, and a U-shaped seat is fixedly arranged on the upper surface of the box body. According to the soldering flux adding device for the photovoltaic solder strip, the box body is arranged to be used for containing liquid soldering flux, the photovoltaic solder strip is unfolded through cooperation of the first pulley block and the second pulley block, meanwhile, the second pulley block is pushed to move through the telescopic assembly, the unfolded solder strip body is placed in the soldering flux in the box body, and soldering flux adding is completed; and the whole step of adding the soldering flux can be carried out synchronously with the step of welding by using a welding strip, so that the use efficiency is high, meanwhile, the whole adding process is transparent, and a user can intuitively observe the adding effect of the soldering flux and carry out corresponding adjustment so as to meet the actual use requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic welding ribbons, in particular to a flux adding device for photovoltaic welding ribbons. Background Art

[0002] Photovoltaic welding ribbon is an important component of photovoltaic modules. It is mainly used for series or parallel connection of photovoltaic cells, playing an important role in conductive collection to improve the output voltage and power of photovoltaic modules. In order to optimize the welding process and improve welding quality and efficiency, flux is added to the photovoltaic welding ribbon before use to assist welding.

[0003] When adding flux to traditional photovoltaic welding ribbons, the entire roll of welding ribbon is immersed in liquid flux. Although this method is simple, it requires a certain amount of soaking time before the inner layer of the welding ribbon in the welding ribbon roll comes into contact with the flux. In addition, the user cannot intuitively observe the effect of adding flux to the inner layer of the welding ribbon, which is not conducive to practical use. For this reason, we propose a flux adding device for photovoltaic welding ribbons to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a flux adding device for photovoltaic welding ribbons, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: a flux adding device for photovoltaic welding ribbon, comprising: a box body for containing liquid flux, and a welding ribbon body in an unfolded state of the photovoltaic welding ribbon roll, a first pulley group is provided on the box body, and a U-shaped seat is also fixedly installed on the upper surface of the box body, and a telescopic component and an adjustment component are respectively provided on the U-shaped seat; the telescopic component comprises a movable cylinder, a fixed cylinder slidably connected to the movable cylinder, and a threaded rod rotatably arranged on the U-shaped seat, an H-shaped plate is fixedly installed on the lower end of the movable cylinder, and a second pulley group is fixedly installed on the lower surface of the H-shaped plate, the first pulley group and the second pulley group are respectively located on the movable path of the welding ribbon body; the adjusting component comprises a turntable fixedly connected to the threaded rod, a fixed seat is also fixedly installed on the turntable, a connecting shaft is provided inside the fixed seat, a cam is fixedly installed on the connecting shaft, and an extension rod is fixedly installed on the cam.

[0006] Preferably, the telescopic assembly also includes a fixing nut and an auxiliary block. The fixing nut is fixedly mounted on the side wall of the inner cavity of the movable cylinder, and the fixing nut is also threadedly connected to the threaded rod. The auxiliary block is fixedly mounted on the end face of the threaded rod located inside the movable cylinder.

[0007] Preferably, the adjustment assembly also includes a ball head rod, an auxiliary spring, a friction block, a friction ring and a reset torsion spring. The ball head rod is slidably arranged on the turntable, and the two ends of the auxiliary spring are fixedly connected to the friction block and the turntable respectively. The friction block is fixedly installed on the lower end of the ball head rod, and the friction ring is fixedly installed on the U-shaped seat. The two ends of the reset torsion spring are fixedly connected to the connecting shaft and the fixed seat respectively.

[0008] Preferably, a convex strip is provided on the outer surface of the movable cylinder, and a groove cooperating with the convex strip is provided on the fixed cylinder.

[0009] Preferably, the auxiliary block is circular in design, and the outer diameter of the auxiliary block is larger than the diameter of the threaded hole on the fixing nut.

[0010] Preferably, the threaded rod is located in the inner cavity of the fixed cylinder, and the length of the fixed cylinder is greater than the length of the movable cylinder.

[0011] Preferably, an annular groove is provided on the U-shaped seat, and the friction block and the friction ring are both located inside the annular groove.

[0012] Preferably, friction patterns for enhancing friction are provided on the side surfaces of the friction block and the friction ring adjacent to each other.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The flux adding device for photovoltaic welding ribbon is configured to contain liquid flux by setting a box body, and then unfolding the photovoltaic welding ribbon through the cooperation of the first pulley group and the second pulley group, and at the same time, the telescopic component is used to push the second pulley group to move, so that the unfolded welding ribbon body is placed inside the flux in the box body to complete the addition of flux. The entire flux adding step can be carried out simultaneously with the use of welding ribbon, with high efficiency. At the same time, the entire adding process is transparent, and the user can intuitively observe the effect of flux addition and make corresponding adjustments to meet actual usage needs.

[0015] 2. The flux adding device for the photovoltaic welding ribbon can appropriately increase the torque of the telescopic component by setting an adjustment component, so that the user can complete the adjustment of the entire device in a more labor-saving manner, further improving the use efficiency of the entire device. After adjustment, the adjustment component can lock the internal structural activity, and then lock the position of the second pulley group, thereby improving the stability of the entire device and ensuring that the welding ribbon body is always in contact with the flux inside the box to facilitate the addition of flux. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a schematic cross-sectional view of the movable cylinder and fixed cylinder structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the U-shaped seat and turntable structure of the utility model;

[0019] Figure 4 This is an exploded diagram of the turntable structure of the utility model;

[0020] Figure 5 This is an exploded diagram of the reset torsion spring structure of the utility model.

[0021] In the figure: 1. Box body; 2. First pulley group; 3. Welding strip body; 4. Second pulley group; 5. H-shaped plate; 6. U-shaped seat; 7. Telescopic assembly; 71. Movable cylinder; 72. Fixed cylinder; 73. Threaded rod; 74. Fixing nut; 75. Auxiliary block; 8. Adjustment assembly; 81. Turntable; 82. Extension rod; 83. Cam; 84. Connecting shaft; 85. Ball head rod; 86. Auxiliary spring; 87. Friction block; 88. Friction ring; 89. Fixed seat; 810. Reset torsion spring. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5 A device for adding flux to a photovoltaic welding ribbon comprises: a box 1 for containing liquid flux, and a welding ribbon body 3 in an unrolled photovoltaic welding ribbon roll; a first pulley set 2 is provided on the box 1, and a U-shaped seat 6 is fixedly installed on the upper surface of the box 1, and a telescopic component 7 and an adjustment component 8 are respectively provided on the U-shaped seat 6.

[0024] The telescopic assembly 7 includes a movable cylinder 71, a fixed cylinder 72 slidably connected to the movable cylinder 71, and a threaded rod 73 rotatably arranged on the U-shaped seat 6. The lower end of the movable cylinder 71 is fixedly mounted with an H-shaped plate 5, and the lower surface of the H-shaped plate 5 is fixedly mounted with a second pulley group 4. The first pulley group 2 and the second pulley group 4 are respectively located on the movable path of the welding strip body 3; the telescopic assembly 7 also includes a fixing nut 74 and an auxiliary block 75. The fixing nut 74 is fixedly mounted on the side wall of the inner cavity of the movable cylinder 71, and the fixing nut 74 is also threadedly connected to the threaded rod 73, and the auxiliary block 75 is fixedly mounted on the threaded rod 73. The rod 73 is located on the end face inside the movable cylinder 71. A convex strip is provided on the outer surface of the movable cylinder 71, and a groove that cooperates with the convex strip is provided on the fixed cylinder 72 to ensure the stability of the sliding connection relationship between the fixed cylinder 72 and the movable cylinder 71. The auxiliary block 75 is circular in design, and the outer diameter of the auxiliary block 75 is larger than the diameter of the threaded hole on the fixing nut 74. The auxiliary block 75 of such design can avoid the phenomenon of the movable cylinder 71 being detached, thereby ensuring the stability of the overall structural design. The threaded rod 73 is located in the internal cavity of the fixed cylinder 72, and the length of the fixed cylinder 72 is greater than the length of the movable cylinder 71.

[0025] The adjusting assembly 8 includes a turntable 81 fixedly connected to the threaded rod 73, a fixed seat 89 is fixedly installed on the turntable 81, a connecting shaft 84 is provided inside the fixed seat 89, a cam 83 is fixedly installed on the connecting shaft 84, an extension rod 82 is fixedly installed on the cam 83, the adjusting assembly 8 also includes a ball head rod 85, an auxiliary spring 86, a friction block 87, a friction ring 88 and a reset torsion spring 810, the ball head rod 85 is slidably arranged on the turntable 81, and the two ends of the auxiliary spring 86 are respectively fixed to the friction block 87 and the turntable 81. Fixed connection, the friction block 87 is fixedly mounted on the lower end of the ball head rod 85, and the friction ring 88 is fixedly mounted on the U-shaped seat 6. The adjacent sides of the friction block 87 and the friction ring 88 are provided with friction patterns for enhancing friction. The two ends of the reset torsion spring 810 are fixedly connected to the connecting shaft 84 and the fixed seat 89 respectively. An annular groove is provided on the U-shaped seat 6, and the friction block 87 and the friction ring 88 are both inside the annular groove, making the overall structural design more reasonable and avoiding the interference of various structures when the overall device is running.

[0026] Working principle: add liquid soldering flux into the box 1, and then unroll the photovoltaic ribbon to the following position through the first pulley set 2 fixed on the box 1 and the second pulley set 4 fixed on the H-shaped plate 5. Figure 1The state of the welding strip body 3 shown is that the movable cylinder 71 fixed on the H-shaped plate 5 is slidably connected with the fixed cylinder 72, and the fixed cylinder 72 is fixed on the U-shaped seat 6. The U-shaped seat 6 and the box body 1 are fixedly connected. The threaded rod 73 set on the U-shaped seat 6 is rotated to be threadedly connected with the fixing nut 74, and the fixing nut 74 is fixed to the inside of the movable cylinder 71. Therefore, as the threaded rod 73 rotates, the movable cylinder 71 can be driven to slide on the fixed cylinder 72, and then the second pulley group 4 is pushed into the flux inside the box body 1. The welding strip body 3 on the synchronous second pulley group 4 is now convenient for contact with the flux to complete the addition of flux, and the first pulley group 2 and the second pulley group 4 are both active. Therefore, in actual use, the welding strip body 3 can be pulled, and the welding strip body 3 at different positions can be replaced to contact with the flux to complete the addition.

[0027] When the threaded rod 73 is actually driven to adjust the position of the second pulley group 4, the threaded rod 73 is fixedly connected to the turntable 81, and the extension rod 82 is movably connected to the fixing seat 89 fixed on the turntable 81 through the connecting shaft 84. Therefore, the extension rod 82 is first rotated through the connecting shaft 84, so that the raised part of the cam 83 fixed on the extension rod 82 does not contact the ball head rod 85, and the friction block 87 fixed on the ball head rod 85 is further connected to the turntable 81 through the auxiliary spring 86. Therefore, under the action of the auxiliary spring 86, the ball head rod 85 and the friction block 87 can be driven to slide upward. At this time, the friction block 87 does not contact the friction ring 88, and the turntable 81 and the threaded rod 73 can be driven to rotate through the extension rod 82. At the same time, because the fixing seat 89 is located on the side of the center of the turntable 81, The torque is increased to drive the threaded rod 73 to rotate in a more labor-saving manner, thereby adjusting the position of the second pulley group 4. After loosening the extension rod 82, the extension rod 82 rotates to a horizontal state under the action of the return torsion spring 810 fixedly connected to the connecting shaft 84 and the fixing seat 89 at both ends. The raised part on the cam 83 contacts the ball head rod 85 again to squeeze the ball head rod 85 to slide toward the friction ring 88 until the friction block 87 contacts the friction ring 88 fixed on the U-shaped seat 6. At this time, the friction blocks 87 and the friction rings 88 contact and cooperate with each other to form a certain friction force. Under the action of this friction force, the movement of the friction block 87 can be restricted, thereby restricting the rotation of the turntable 81, the threaded rod 73 and other structures, thereby locking the position of the second pulley group 4 and other structures.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flux adding device for photovoltaic welding ribbon, characterized in that: include: A box (1) for containing liquid soldering flux and a photovoltaic soldering ribbon body (3) in an unrolled state, wherein the box (1) is provided with a first pulley assembly (2), and a U-shaped seat (6) is fixedly mounted on the upper surface of the box (1), and a telescopic assembly (7) and an adjustment assembly (8) are respectively provided on the U-shaped seat (6); The telescopic assembly (7) comprises a movable cylinder (71), a fixed cylinder (72) slidably connected to the movable cylinder (71), and a threaded rod (73) rotatably arranged on the U-shaped seat (6); an H-shaped plate (5) is fixedly mounted on the lower end of the movable cylinder (71); a second pulley group (4) is fixedly mounted on the lower surface of the H-shaped plate (5); the first pulley group (2) and the second pulley group (4) are respectively located on the movable path of the welding strip body (3); The adjustment assembly (8) comprises a turntable (81) fixedly connected to the threaded rod (73); a fixing seat (89) is fixedly mounted on the turntable (81); a connecting shaft (84) is provided inside the fixing seat (89); a cam (83) is fixedly mounted on the connecting shaft (84); and an extension rod (82) is fixedly mounted on the cam (83).

2. A flux adding device for photovoltaic ribbon according to claim 1, characterized in that: The telescopic assembly (7) further comprises a fixing nut (74) and an auxiliary block (75). The fixing nut (74) is fixedly mounted on the side wall of the inner cavity of the movable cylinder (71), and the fixing nut (74) is also threadedly connected to the threaded rod (73). The auxiliary block (75) is fixedly mounted on the end surface of the threaded rod (73) located inside the movable cylinder (71).

3. A flux adding device for photovoltaic ribbon according to claim 1, characterized in that: The adjustment assembly (8) further comprises a ball rod (85), an auxiliary spring (86), a friction block (87), a friction ring (88) and a return torsion spring (810). The ball rod (85) is slidably arranged on the turntable (81). The two ends of the auxiliary spring (86) are respectively fixedly connected to the friction block (87) and the turntable (81). The friction block (87) is fixedly mounted on the lower end of the ball rod (85). The friction ring (88) is fixedly mounted on the U-shaped seat (6). The two ends of the return torsion spring (810) are respectively fixedly connected to the connecting shaft (84) and the fixed seat (89).

4. A flux adding device for photovoltaic ribbon according to claim 2, characterized in that: The outer surface of the movable cylinder (71) is provided with a convex strip, and the fixed cylinder (72) is provided with a groove matched with the convex strip.

5. A flux adding device for photovoltaic ribbon according to claim 2, characterized in that: The auxiliary block (75) is circular in design, and the outer diameter of the auxiliary block (75) is larger than the diameter of the threaded hole on the fixing nut (74).

6. A flux adding device for photovoltaic ribbon according to claim 2, characterized in that: The threaded rod (73) is located in the inner cavity of the fixed cylinder (72), and the length of the fixed cylinder (72) is greater than the length of the movable cylinder (71).

7. A flux adding device for photovoltaic ribbon according to claim 3, characterized in that: An annular groove is provided on the U-shaped seat (6), and the friction block (87) and the friction ring (88) are both located inside the annular groove.

8. A flux adding device for photovoltaic ribbon according to claim 3, characterized in that: Friction lines for enhancing friction are provided on adjacent sides of the friction block (87) and the friction ring (88).

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