A welding strip bending device

Abstract

The present application discloses a welding strip bending device, including a tape carrier, a lifting bracket and a bending assembly, the bending assembly including an elastic member, a pressing member and a bending member, the tape carrier is provided with a through hole, the bending member is arranged on the lifting bracket, the bending member and the through hole are arranged relative to each other, the lifting bracket can perform lifting and lowering movements relative to the tape carrier, the lifting bracket is provided with a slide groove, the pressing member and the slide groove are slidably matched, the elastic member is arranged in the slide groove, and the two ends of the elastic member are elastically in contact with the pressing member and the inner wall of the slide groove respectively, and the two pressing ends of the pressing member are respectively located on both sides of the bending member. The above technical scheme can solve the problem that the bending method in the related art will affect the overall straightness of the welding strip, and the part outside the bending section will bend and warp, thereby resulting in poor welding effect of the battery string.

Description

Technical Field

[0001] The utility model relates to the technical field of welding strip preparation, in particular to a welding strip bending device. Background Art

[0002] Solder ribbon is an important raw material in the welding process of photovoltaic modules. In the back-contact cell string, the solder ribbon cools and shrinks after welding, which can easily cause the welded cell to warp. The warping of the cell after welding will also affect the string length and appearance. Of course, the subsequent lamination process will also have the risk of breakage due to the warping of the cell.

[0003] In the related art, part of the soldering ribbon is bent to compensate for the shrinkage of the soldering ribbon when it cools down after welding, thereby avoiding warping of the welded battery cell. Specifically, the soldering ribbon clamps the soldering ribbon to the carrier table, and the bending mechanism presses down to bend the soldering ribbon by cooperating with the through hole opened in the carrier table. However, this bending method will affect the overall straightness of the soldering ribbon, and the part outside the bent section will bend and warp, resulting in poor welding effect of the battery string. Utility Model Content

[0004] The purpose of the utility model is to provide a welding strip bending device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding strip bending device, comprising a carrier platform, a lifting bracket and a bending assembly, the bending assembly comprising an elastic member, a pressing member and a bending member, the carrier platform is provided with a through hole, the bending member is arranged on the lifting bracket, the bending member and the through hole are arranged opposite to each other, the lifting bracket can perform lifting and lowering movements relative to the carrier platform, the lifting bracket is provided with a slide groove, the pressing member is slidably matched with the slide groove, the elastic member is arranged in the slide groove, and the two ends of the elastic member are elastically in contact with the pressing member and the inner wall of the slide groove respectively, and the two pressing ends of the pressing member are respectively located on both sides of the bending member.

[0006] Preferably, there are a plurality of bending components, and the plurality of bending components are arranged in an array along a first direction; there are a plurality of through holes, and the plurality of through holes are arranged in an array along the first direction; and the plurality of bending parts correspond to the plurality of through holes one by one and are arranged relatively to each other.

[0007] Preferably, the tape carrier is provided with a limiting groove, the limiting groove can carry the solder tape and cooperate in a limiting manner, and the limiting groove is connected to the through hole.

[0008] Preferably, the pressing area of ​​the pressing end is greater than or equal to the pressing area of ​​the bending part.

[0009] Preferably, when the elastic member is in a natural state and the pressing end moves with the lifting bracket to contact the welding strip carried by the carrier, the bending member contacts the welding strip; or the bending member is adjacent to the welding strip.

[0010] Preferably, a cover plate is further included, one end of the bending member is arranged in the slide groove, the other end of the bending member extends out of the slide groove, and the cover plate is arranged outside the slide groove.

[0011] Preferably, the multiple bending components arranged in an array along the first direction form a bending mechanism, the multiple through holes arranged in an array along the first direction form a through hole group, the bending mechanisms are multiple and arranged in an array along the second direction, the through hole groups are multiple and arranged in an array along the second direction, the multiple bending mechanisms correspond one-to-one to the multiple through hole groups and are arranged relatively to each other, wherein the first direction is perpendicular to the second direction.

[0012] The technical solution adopted in this application can achieve the following beneficial effects:

[0013] In a welding strip bending device disclosed in the present application, a through hole is provided on a carrier table, a bending piece is arranged on a lifting bracket, the bending piece and the through hole are arranged opposite to each other, the lifting bracket can perform lifting and lowering movement relative to the carrier table, the lifting bracket is provided with a slide groove, the pressing piece and the slide groove are slidably matched, the elastic piece is arranged in the slide groove, and the two ends of the elastic piece are elastically contacted between the pressing piece and the inner wall of the slide groove, and the two pressing ends of the pressing piece are respectively located on both sides of the bending piece.

[0014] When the soldering tape is transported to the carrier platform and the through-hole is opposite to part of the soldering tape, the lifting bracket descends and is adjacent to the carrier platform, the bending assembly moves with the lifting bracket, the bending part moves and contacts the soldering tape, and continues to press part of the soldering tape to cooperate with the through-hole, so that part of the soldering tape is deformed into the through-hole under force to form a bent section, and the two pressing ends of the pressing part first contact the two sides of the soldering tape part, and as the lifting bracket moves, the elastic part deforms, and the elastic potential energy drives the two pressing ends to press the two sides of the soldering tape part on the carrier platform respectively, so as to avoid the soldering tape being affected by the bending and causing overall linear bending, especially the bending section is adjacent to the two ends of the soldering tape and is prone to warping at both ends, so that the soldering tape and the battery cell can still be linearly fitted, thereby ensuring the welding effect of the battery string. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the welding strip bending device disclosed in the embodiment of the present application;

[0017] Figure 2 A top view of a welding ribbon bending device disclosed in an embodiment of the present application;

[0018] Figure 3 for Figure 2 sectional view of .

[0019] In the figure: 100, tape carrier; 200, lifting bracket; 300, elastic member; 400, pressing member; 500, bending member; 600, cover plate; A, through hole; B, slide groove; C, limit groove. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0021] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] like Figures 1 to 3 As shown, the present application discloses a solder strip bending device, which includes a carrier 100 , a lifting bracket 200 and a bending assembly, and the bending assembly includes an elastic member 300 , a pressing member 400 and a bending member 500 .

[0024] Specifically, the carrier 100 is provided with a through hole A, the bending piece 500 is arranged on the lifting bracket 200, the bending piece 500 is arranged opposite to the through hole A, the lifting bracket 200 can perform lifting and lowering movements relative to the carrier 100, the lifting bracket 200 is provided with a slide groove B, the pressing piece 400 is slidably matched with the slide groove B, the elastic piece 300 is arranged in the slide groove B, and the two ends of the elastic piece 300 are elastically contacted between the pressing piece 400 and the inner wall of the slide groove B, and the two pressing ends of the pressing piece 400 are respectively located on both sides of the bending piece 500.

[0025] When the soldering tape is transported to the carrier 100 and the through hole A is opposite to part of the soldering tape, the lifting bracket 200 descends and is adjacent to the carrier 100, the bending assembly moves with the lifting bracket 200, the bending member 500 moves and contacts the soldering tape, and continues to press part of the soldering tape to cooperate with the through hole A, so that part of the soldering tape is deformed into the through hole A by force to form a bent section, and the two pressing ends of the pressing member 400 first contact the two sides of the soldering tape part, and as the lifting bracket 200 moves, the elastic member 300 deforms, and the elastic potential energy drives the two pressing ends to press the two sides of the soldering tape part on the carrier 100 respectively, so as to avoid the soldering tape being affected by the bending and causing the overall linear bending, especially the bending section is adjacent to the two ends of the soldering tape and is prone to warping at both ends, so that the soldering tape and the battery cell can still be linearly fitted, thereby ensuring the welding effect of the battery string.

[0026] In addition, the elastic member 300 may be a spring, a silicone column, etc., and this application does not impose any limitation on this.

[0027] In an embodiment of the present application, there may be multiple bending components, which are arranged in an array along a first direction; there may be multiple through holes A, which are arranged in an array along the first direction; specifically, multiple bending parts 500 correspond to the multiple through holes A one-to-one and are relatively arranged, wherein the first direction is consistent with the length direction of the welding tape placed on the carrier 100, so that the welding tape can be provided with multiple bending sections, which is beneficial for the stress of the welding tape cooling and shrinkage after welding to be distributed on the multiple bending sections, thereby further avoiding the warping problem of welded battery cells.

[0028] In the embodiment of the present application, the carrier 100 can be provided with a limiting groove C. Specifically, the limiting groove C can carry the solder strip and cooperate in a limiting manner. The limiting groove C is connected to the through hole A, thereby avoiding misalignment of the solder strip and resulting in low bending accuracy.

[0029] In the embodiment of the present application, the pressing area of ​​the pressing end can be greater than or equal to the pressing area of ​​the bending piece 500, so that the static friction between the pressing end and the pressed welding strip is increased, which is beneficial for the bending piece 500 to form a bend when the welding strip is bent by only deforming the welding strip, and will not compensate for the bending due to the movement of both sides of the bending part of the welding strip, thereby ensuring that the positions of the two ends of the welding strip will not change, thereby ensuring the accuracy of the welding strip clamped by the clamping hand.

[0030] In the embodiment of the present application, when the elastic member 300 is in a natural state and the pressing end moves with the lifting bracket 200 to contact the welding ribbon carried by the carrier 100, the bending member 500 contacts the welding ribbon; or, the bending member 500 is close to the welding ribbon.

[0031] When the elastic member 300 is in a natural state and the pressing end moves with the lifting bracket 200 to contact the soldering tape carried by the carrier 100, the bending member 500 contacts the soldering tape, that is, the bending member 500 and the pressing end contact the soldering tape at the same time, and as the lifting bracket 200 continues to move, the bending member 500 drives the soldering tape to deform and bend, and because the pressing end is affected by the deformation potential energy of the elastic member 300, it presses the two sides of the bent section of the soldering tape to prevent the two sides from being driven to shift and misalignment; when the elastic member 300 is in a natural state and the pressing end moves with the lifting bracket 200 to contact the soldering tape carried by the carrier 100, the bending member 500 is close to the soldering tape, that is, the pressing end first presses the soldering tape on the carrier 100 before bending the soldering tape with the bending member 500.

[0032] In an embodiment of the present application, the welding strip bending device may further include a cover plate 600. Specifically, one end of the bending member 500 is disposed in the slide groove B, and the other end of the bending member 500 extends out of the slide groove B, and the cover plate 600 is covered outside the slide groove B.

[0033] The above structure helps to utilize the internal space of the slide groove B, optimize the structural design, and reduce space occupation. The cover plate 600 can also prevent the elastic member 300 from detaching.

[0034] In an embodiment of the present application, a plurality of bending components arranged in an array along a first direction can form a bending mechanism, and a plurality of through holes A arranged in an array along the first direction can form a through hole group. Specifically, there are a plurality of bending mechanisms arranged in an array along a second direction, and there are a plurality of through hole groups arranged in an array along the second direction. The plurality of bending mechanisms correspond one-to-one to the plurality of through hole groups and are arranged relatively to each other, wherein the first direction is perpendicular to the second direction.

[0035] The above structure can realize simultaneous bending of multiple welding strips in the array along the second direction, thereby improving the production efficiency of the battery string.

[0036] 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. A welding strip bending device, characterized in that: The invention comprises a tape carrier (100), a lifting bracket (200) and a bending component, wherein the bending component comprises an elastic member (300), a pressing member (400) and a bending member (500), the tape carrier (100) is provided with a through hole (A), the bending member (500) is arranged on the lifting bracket (200), the bending member (500) and the through hole (A) are arranged opposite to each other, the lifting bracket (200) can perform lifting movement relative to the tape carrier (100), the lifting bracket (200) is provided with a slide groove (B), the pressing member (400) and the slide groove (B) are slidably matched, the elastic member (300) is arranged in the slide groove (B), and the two ends of the elastic member (300) are elastically in contact with the inner wall of the pressing member (400) and the slide groove (B), and the two pressing ends of the pressing member (400) are respectively located on both sides of the bending member (500).

2. The welding strip bending device according to claim 1, characterized in that: There are a plurality of bending components, and the plurality of bending components are arranged in an array along a first direction; there are a plurality of through holes (A), and the plurality of through holes (A) are arranged in an array along the first direction; and the plurality of bending parts (500) correspond to the plurality of through holes (A) one by one and are arranged relatively to each other.

3. The welding strip bending device according to claim 1, characterized in that: The tape carrier (100) is provided with a limiting groove (C), the limiting groove (C) can carry the welding tape and limit the position, and the limiting groove (C) is connected with the through hole (A).

4. The welding strip bending device according to claim 1, characterized in that: The pressing area of ​​the pressing end is greater than or equal to the pressing area of ​​the bending piece (500).

5. The welding strip bending device according to claim 1, characterized in that: When the elastic member (300) is in a natural state and the pressing end moves with the lifting bracket (200) to contact the welding strip carried by the carrier platform (100), the bending member (500) contacts the welding strip; or the bending member (500) is adjacent to the welding strip.

6. The welding strip bending device according to claim 1, characterized in that: It also includes a cover plate (600), one end of the bending member (500) is arranged in the slide groove (B), the other end of the bending member (500) extends out of the slide groove (B), and the cover plate (600) is covered outside the slide groove (B).

7. The welding strip bending device according to claim 2, characterized in that: The multiple bending components arranged in an array along the first direction form a bending mechanism, the multiple through holes (A) arranged in an array along the first direction form a through hole group, the bending mechanisms are multiple and arranged in an array along the second direction, the through hole groups are multiple and arranged in an array along the second direction, the multiple bending mechanisms correspond to the multiple through hole groups one by one and are arranged relatively, wherein the first direction is perpendicular to the second direction.

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