Solder strip deviation rectifying device of series welding machine

Abstract

The utility model discloses a welding strip deviation rectifying device of a series welding machine, which comprises a lower cover plate and a lower cover plate, and a guide surface is formed on the lower cover plate; a plurality of guide holes are formed between the upper cover plate and the lower cover plate and are used for limiting the moving direction of the welding strip; the lower cover plate and the upper cover plate are in floating connection through an elastic piece. When the welding strip penetrates through the guide hole, the upper pressing plate can stably press the welding strip by utilizing self weight, so that the welding strip moves along the guide surface under the guide of the guide hole, the welding strip which is limited by the aperture of the guide hole, is caused by human errors or is twisted by the material is filtered and smoothed by the guide hole, and the welding strip which drives a larger tin ball is forcibly broken; the problem that welding spots are welded on the battery piece to form welding breakage loss is avoided, and the production yield of the photovoltaic module is effectively improved. And the upper cover plate and the lower cover plate are in floating connection through the elastic piece, so that the solder strip tin beads in a certain size range can pass through, redundant tin slag materials on the surfaces of the tin beads are scraped, the quality of the solder strip is improved, and the production yield of the photovoltaic module is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a series welding machine technical field, especially in series welding machine welding strip deviation rectifying device. BACKGROUND

[0002] The series welding machine is the equipment for welding photovoltaic cell piece into cell string in the photovoltaic module manufacturing process, has high precision, high speed, high stability and the like, and the welding strip is also called tinned welding strip, is mainly used for series connection or parallel connection of photovoltaic cell piece, through the effect of conduction and electret, improves the output voltage and power of photovoltaic module. The quality of welding strip directly influences the collection efficiency of photovoltaic module current.

[0003] For a long time, under the influence of unstable factors such as welding strip shaking, slotting distortion damage, welding strip replacement failure and welding strip carrying tin beads and twist, the cell string welding produces crack, crack, short circuit and edge collapse, and when serious, it will lead to photovoltaic module scrap, and the production yield of photovoltaic module is low. UTILITY MODEL CONTENT

[0004] The utility model discloses a series welding machine welding strip deviation rectifying device, and the upper cover plate and the lower cover plate form the guide hole for the welding strip to pass, filter and flatten the welding strip, and solve the technical problem that the production yield of photovoltaic module is influenced by the too large tin beads of the existing welding strip.

[0005] To realize the above-mentioned purpose, the utility model provides a series welding machine welding strip deviation rectifying device, which comprises:

[0006] The lower cover plate forms a guide surface.

[0007] The upper cover plate and the lower cover plate form a plurality of guide holes therebetween, and the guide holes are used to limit the moving direction of the welding strip. The lower cover plate and the upper cover plate are connected by floating through the elastic member.

[0008] Preferably, the side of the upper cover plate towards the guide surface forms a plurality of recess grooves, and the recess grooves and the upper side of the lower cover plate oppositely form the guide holes.

[0009] Preferably, the upper cover plate and the lower cover plate are both plate-shaped, and the floating gap is formed between the upper cover plate and the lower cover plate, and the range of the floating gap is 0.15mm-0.17mm.

[0010] Preferably, the elastic member is a floating spring, one end of the floating spring is fixed to the lower cover plate, and the other end is elastically abutted with the upper cover plate.

[0011] Preferably, the lower cover plate is fixed with two floating springs, and the two floating springs are respectively and symmetrically arranged on the two sides of the lower cover plate.

[0012] Preferably, each floating spring has an upper spring seat and a lower spring seat fixed at both ends, the upper spring seat being fixedly connected to the upper cover plate, and the lower spring seat being fixedly connected to the lower cover plate.

[0013] Preferably, the elastic element is an elastic pad, one end of which is fixed to the lower cover plate and the other end of which elastically abuts against the upper cover plate.

[0014] Preferably, the lower cover plate is fixedly provided with four elastic pads, which are symmetrically arranged in pairs on both sides of the lower cover plate.

[0015] Preferably, a stud is provided between the lower cover plate and the upper cover plate.

[0016] Preferably, all the recessed grooves are circular arc grooves, and the center lines of all the recessed grooves are parallel to each other.

[0017] Compared with the prior art, this utility model designs a welding strip correction device for a string welding machine, including an upper cover plate and a lower cover plate, with a number of guide holes formed between the upper cover plate and the lower cover plate.

[0018] When the solder ribbon passes through the guide hole, the upper pressure plate can use its own weight to stabilize and press the solder ribbon, allowing it to move along the guide surface under the guidance of the guide hole. Due to the limitation of the diameter of the guide hole, solder ribbons that are twisted due to human error or the material itself are filtered and smoothed by the guide hole. The guide hole also forcibly cuts off solder ribbons with large solder balls, preventing problematic solder joints from being welded onto the solar cell and causing solder damage, thus effectively improving the production yield of photovoltaic modules.

[0019] Moreover, the upper and lower cover plates are connected by a floating elastic element, allowing solder balls within a certain size range to pass through and scraping off excess solder dross from the surface of the solder balls, thus improving the quality of the solder strip and further increasing the production yield of photovoltaic modules. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the welding strip correction device for a string welding machine provided in an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the upper and middle cover plate;

[0023] Figure 3 for Figure 1 Schematic diagram of the lower cover plate and floating spring;

[0024] Figure 4 for Figure 3 A schematic diagram of a floating spring;

[0025] Figure 5 for Figure 1 Schematic diagram of the lower cover plate and elastic pad;

[0026] Figure 6 for Figure 5 A schematic diagram of a medium elastic pad.

[0027] The attached figures are labeled as follows:

[0028] Lower cover plate 1, upper cover plate 2, welding strip 3, elastic element 4, and stud 5;

[0029] Guide surface 11;

[0030] Recessed groove 21;

[0031] Floating spring 41 and elastic pad 42;

[0032] Upper spring seat 411 and lower spring seat 412. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] This utility model discloses a strip correction device for a string welding machine, as shown in the attached figure. Figure 1 As shown, the device includes an upper cover plate 2 and a lower cover plate 1. The lower cover plate 1 is fixedly installed to provide support for the welding strip 3. The upper cover plate 2 covers the guide surface 11 of the lower cover plate 1 and is used to press the welding strip 3 onto the lower cover plate 1. A plurality of guide holes are formed between the upper cover plate 2 and the lower cover plate 1 to limit the movement direction of the welding strip 3.

[0036] When the solder ribbon 3 passes through the guide hole, the upper pressure plate can use its own weight to stabilize and press the solder ribbon 3, so that the solder ribbon 3 moves along the guide surface 11 under the guidance of the guide hole. Due to the limitation of the diameter of the guide hole, the solder ribbon 3 that is twisted due to human error or material itself is filtered and smoothed by the guide hole. The guide hole also forcibly cuts off the solder ribbon 3 with large solder balls, so as to avoid the problem solder joints being welded on the battery cell and causing solder breakage loss, effectively improving the production yield of photovoltaic modules.

[0037] As attached Figure 1 As shown, in the depth direction of the recessed groove 21, that is, in the thickness direction of the upper cover plate 2 and the lower cover plate 1, the upper cover plate 2 and the lower cover plate 1 are connected by a floating elastic element 4, so that solder balls of solder ribbon 3 within a certain size range can pass through, and the excess solder dross material on the surface of the solder balls can be scraped off, thereby improving the quality of solder ribbon 3 and also improving the production yield of photovoltaic modules.

[0038] As attached Figure 1 As shown, the upper side of the lower cover plate 1 serves as the reference plane for conveying the welding strip 3. (See attached diagram) Figure 2 As shown, the upper cover plate 2 has a number of recessed grooves 21 on the side facing the guide surface 11. The groove opening of each recessed groove 21 is opposite to the upper side of the lower cover plate 1 to form a guide hole. The guide hole is used to guide the welding strip 3 to move along the guide surface 11.

[0039] As attached Figure 2 As shown, all the recessed grooves 21 are specifically circular arc grooves, and the center lines of all the recessed grooves 21 are parallel to each other. Of course, the structure of the recessed grooves 21 is not limited to this, and can be adapted to the cross-sectional shape of the weld strip 3.

[0040] Both the upper cover plate 2 and the lower cover plate 1 are plate-shaped, as shown in the attached figure. Figure 1 As shown, two stop protrusions are formed on both sides of the lower cover plate 1. The stop protrusions are set higher than the guide surface 11 and are used to prevent the upper cover plate 2 from moving relative to the lower cover plate 1 and cutting off the solder strip 3 in the direction perpendicular to the movement of the solder strip 3. A floating gap is formed between the upper cover plate 2 and the lower cover plate 1. The floating gap ranges from 0.15mm to 0.17mm and is used to scrape off excess solder dross material from the surface of the solder ball.

[0041] As a preferred embodiment, as shown in the appendix Figure 3 As shown, the elastic element 4 is specifically a floating spring 41. One end of the floating spring 41 is fixed to the lower cover plate 1, and the other end elastically abuts against the upper cover plate 2, causing the upper cover plate 2 to float up and down relative to the lower cover plate 1. Two floating springs 41 are fixed to the lower cover plate 1, symmetrically arranged on both sides of the lower cover plate 1, ensuring that the upper cover plate 2 applies pressure evenly to the welding strip 3. (See attached...) Figure 4 As shown, the floating spring 41 is a common cylindrical spring. Each floating spring 41 has an upper spring seat 411 and a lower spring seat 412 fixed at both ends. The upper spring seat 411 is fixedly connected to the upper cover plate 2, and the lower spring seat 412 is fixedly connected to the lower cover plate 1, so that the floating spring 41 is reliably fixed between the upper cover plate 2 and the lower cover plate 1.

[0042] As another preferred embodiment, see attached Figure 5As shown, the elastic member 4 is specifically an elastic pad 42, one end of which is fixed to the lower cover plate 1 and the other end of which is elastically abutted with the upper cover plate 2, so that the upper cover plate 2 is up and down floating relative to the lower cover plate 1. The lower cover plate 1 is fixed with four elastic pads 42, which are respectively two two symmetrically arranged on the two sides of the lower cover plate 1, so as to ensure that the upper cover plate 2 uniformly applies pressure to the solder strip 3. As shown in the accompanying Figure 6 As shown, the elastic pad 42 is in a cylindrical shape, which can be specifically a rubber pad, but is not limited thereto.

[0043] As shown in the accompanying Figure 1 As shown, the lower cover plate 1 and the upper cover plate 2 are provided with a threaded stud 5 therebetween, which is used for detachably connecting the upper cover plate 2 and the lower cover plate 1 during work, so as to facilitate transportation and storage.

[0044] It should be noted that in the present specification, the relational terms such as first and second are used only to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.

[0045] The principle and implementation mode of the present application are described by applying specific examples in the present specification, and the above description of the examples is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A strip bonding machine ribbon strip deviation correcting device characterized by, The utility model relates to a kind of welding strip guiding device, including: Lower cover plate (1), the lower cover plate (1) is formed with guide surface (11); Upper cover plate (2), a plurality of guide holes are formed between the lower cover plate (1) and the upper cover plate (2), the guide hole is used to define the moving direction of welding strip (3);The lower cover plate (1) and the upper cover plate (2) are connected by elastic member (4) floating.

2. The strip bonding machine ribbon correction device of claim 1, wherein, The side of the upper cover plate (2) towards the guide surface (11) is formed with a plurality of recessed grooves (21), the recessed groove (21) is formed with the guide hole opposite the upper side of the lower cover plate (1).

3. The strip bonding machine ribbon correction device of claim 2, wherein, The upper cover plate (2) and the lower cover plate (1) are both plate-like;Floating gap is formed between the upper cover plate (2) and the lower cover plate (1), and the range of the floating gap is 0.15mm~0.17mm.

4. The strip bonding machine ribbon correction device of claim 1, wherein, The elastic member (4) is specifically floating spring (41), one end of the floating spring (41) is fixed to the lower cover plate (1) and the other end is elastically abutted with the upper cover plate (2).

5. The stringer welder ribbon correction device of claim 4, wherein, The lower cover plate (1) is fixed with two floating springs (41), and two floating springs (41) are respectively symmetrically arranged on the two sides of the lower cover plate (1).

6. The stringer welder ribbon correction device of claim 5, wherein, Two ends of each floating spring (41) are respectively fixed with upper spring seat (411) and lower spring seat (412), the upper spring seat (411) is fixedly connected with the upper cover plate (2), and the lower spring seat (412) is fixedly connected with the lower cover plate (1).

7. The strip bonding machine ribbon correction device of claim 2, wherein, The elastic member (4) is specifically elastic pad (42), one end of the elastic pad (42) is fixed to the lower cover plate (1) and the other end is elastically abutbed with the upper cover plate (2).

8. The stringer welder ribbon correction device of claim 7, wherein, The lower cover plate (1) is fixed with four elastic pads (42), and four elastic pads (42) are respectively arranged symmetrically on the two sides of the lower cover plate (1).

9. The stringer welder ribbon correction device of claim 1, wherein, Screw post (5) is arranged between the lower cover plate (1) and the upper cover plate (2).

10. The strip bonding machine ribbon correction device of claim 2, wherein, All recessed grooves (21) are circular arc grooves, and the center lines of all recessed grooves (21) are parallel to each other.

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