Supporting device and supporting device set
Positioning the welding tape through the support part and the limit part of the support device solves the problem of offsetting the welding tape during the welding process, improves the welding quality, and reduces the risk of overlap short circuit.
Patent Information
- Application Number
- CN202421656044.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-11
AI Technical Summary
During the welding process of the back contact battery, the welding tape is prone to offset and leads to the problem of overlap short circuit. The prior art increases the height difference between the main gate and the secondary gate by printing insulating glue at the end of the secondary gate line, which increases the risk of welding tape offset.
A support device is provided, including a base and a support member. The support member is provided with a support portion and a limiting portion. The support portion supports the bottom surface of the welding belt. The limiting portion limits the welding belt in the lateral direction to form a limiting groove to ensure stable positioning of the welding belt and prevent deviation.
Through the support and limit of the support device, weld tape offset is reduced, the occurrence of dummy welding and welding deviation is reduced, the welding quality is improved, and the overlap short circuit is reduced.
Smart Images
Figure CN223185802U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of photovoltaic technology, and in particular, to a supporting device and a supporting device group. Background Art
[0002] The grid lines of the back-contact battery are all on the back of the battery, and there are no grid lines blocking the front, so the battery efficiency can be significantly improved. Since the main grid of the back-contact battery is staggered with positive and negative poles, and the secondary grid is also finger-shaped and cross-distributed, when the main grid and the secondary grid are welded with the welding ribbon that can make the battery conductive and charge, the welding ribbon is prone to offset and cause overlapping short circuits. In related technologies, before the main grid and the secondary grid are welded, the secondary grids of opposite polarity on both sides of the main grid are generally insulated. Generally, insulating glue is printed at the end of the secondary grid. After insulation in this way, the insulating glue is higher than the secondary grid. Subsequently, when the main grid is welded to the secondary grid through the welding ribbon, the height difference between the main grid and the secondary grid is greater, and it is more likely that the welding ribbon will offset and cause overlapping short circuits. Utility Model Content
[0003] The purpose of the present disclosure is to provide a supporting device that can position the welding strip when welding the main grid and the fine grid, thereby reducing the occurrence of overlapping short circuits caused by welding strip deviation, so as to at least partially solve the above technical problems.
[0004] In order to achieve the above-mentioned purpose, the first aspect of the present disclosure provides a supporting device for supporting a welding strip, comprising: a base; a supporting member connected to the upper end of the base and comprising a supporting portion and a limiting portion, the supporting portion being used to support the bottom surface of the welding strip in a first direction, and the limiting portion being located to the side of the supporting portion in a second direction, for limiting the welding strip in the second direction, wherein the first direction is perpendicular to the second direction.
[0005] Optionally, there are two limiting portions, and the two limiting portions are respectively connected to two ends of the supporting portion on the same side.
[0006] Optionally, the limiting portion and the supporting portion jointly form a limiting groove for limiting the welding strip, and an inner side wall of the limiting groove is formed with a limiting surface that at least partially abuts against an outer peripheral wall of the welding strip.
[0007] Optionally, the two limiting portions extend along the first direction, the limiting groove includes a U-shaped groove, and the limiting surface includes a first supporting surface formed on the upper surface of the supporting portion, and two first limiting surfaces respectively formed on the inner side walls of the two limiting portions and opposite to each other.
[0008] Optionally, the distance between the two first limiting surfaces is greater than the length of the welding strip in the second direction.
[0009] Optionally, the U-shaped groove is recessed inwardly along the first direction toward the base, and a depth of the U-shaped groove along the first direction is no more than two-thirds of a length of the welding strip along the first direction.
[0010] Optionally, the limiting groove further includes an arc-shaped groove, and the limiting surface includes a second limiting surface formed on the inner side of the arc-shaped groove.
[0011] Optionally, the cross-section of the welding strip is circular, and the length of the arc-shaped groove along the second direction is greater than the diameter of the welding strip.
[0012] Optionally, an extension depth of the arc-shaped groove along the first direction is greater than one-third of the diameter of the welding strip and less than two-thirds of the diameter of the welding strip.
[0013] According to a second aspect of the present disclosure, a support device group is provided, comprising the support device described in any of the above optional schemes, wherein a plurality of the support devices are arranged at intervals along the length direction of the welding strip, and a plurality of the support devices are also arranged at intervals along the second direction, and the plurality of support devices are used together to support a plurality of the welding strips.
[0014] Through the above-mentioned technical solution, that is, the support device provided by the present invention, when the welding strip is supported by the support device, the bottom surface of the welding strip can be supported by the support part in the support member, and then the welding strip can be limited in the second direction by the limiting part. The welding strip will be stably located above the supporting part under the limitation of the limiting part. When the main grid line and the auxiliary grid line are welded, the welding strip will not deviate from the correct welding position due to the large height difference between the insulating glue on the auxiliary grid line and the main grid line, which can reduce the situation of cold welding or welding deviation, and finally reduce the occurrence of overlapping short circuit caused by the deviation of the welding strip.
[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0017] Figure 1 is a structural schematic diagram of a supporting device group provided in an exemplary embodiment of the present disclosure;
[0018] Figure 2 is a schematic structural diagram of a support device group provided in an exemplary embodiment of the present disclosure, in which the cross section of the welding strip is circular;
[0019] Figure 3 is a schematic structural diagram of a supporting device provided in an exemplary embodiment of the present disclosure;
[0020] Figure 4 : is a schematic structural diagram of a support device provided in an exemplary embodiment of the present disclosure; in this figure, the cross section of the welding strip is circular;
[0021] Figure 5 Schematic diagram of the connection relationship between the main grid lines, the auxiliary grid lines and the welding strips provided in an exemplary embodiment of the present disclosure.
[0022] Description of Reference Numerals
[0023] 1-base; 2-support member; 210-support portion; 211-first support surface; 220-limiting portion; 221-first limiting surface; 230-limiting groove; 231-second limiting surface; 3-welding strip; 301-bottom surface; 4-main grid line; 5-auxiliary grid line. DETAILED DESCRIPTION
[0024] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.
[0025] In the present disclosure, unless otherwise specified, directional words such as "inside" and "outside" refer to the inside and outside relative to the outline of the component or structure itself; "first" and "second" are used to distinguish one element from another and do not have sequential order or importance. In the drawings of the specification, the direction pointed by the X arrow can represent the first direction, and the direction pointed by the Y arrow can represent the second direction. In addition, the same figure mark in different reference drawings represents the same element.
[0026] In a first aspect of the present disclosure, a support device is provided, referring to Figures 1 to 5 As shown, the support device is used to support the welding strip 3, and the support device includes a base 1 and a support member 2. The support member 2 is connected to the upper end of the base 1 and includes a supporting portion 210 and a limiting portion 220. The supporting portion 210 is used to support the bottom surface 301 of the welding strip 3 in a first direction, and the limiting portion 220 is located to the side of the supporting portion 210 in the second direction, and is used to limit the welding strip 3 in the second direction, wherein the first direction is perpendicular to the second direction.
[0027] In this way, that is, the support device provided by the present invention, when supporting the welding strip 3, the bottom surface 301 of the welding strip 3 can be supported by the support portion 210 in the support member 2, and then the welding strip 3 can be limited in the second direction by the limiting portion 220. The welding strip 3 will be stably located above the supporting portion 210 under the limitation of the limiting portion 220. When the main grid line 4 and the auxiliary grid line 5 are welded, the welding strip 3 will not deviate from the correct welding position due to the large height difference between the insulating glue on the auxiliary grid line 5 and the main grid line 4, which can reduce the situation of cold welding or welding deviation, and finally reduce the occurrence of overlapping short circuit caused by welding strip deviation.
[0028] It should be noted that when the supporting device supports the welding strip 3, the welding strip 3 can be supported at the welding point position of the main grid line 4 and the auxiliary grid line 5. For example, Figure 5 As shown, in Figure 5 In the embodiment, there are multiple positions of the welding strips 3 and they are arranged at intervals on multiple main grid lines 4. At this time, the position of each welding strip 3 is the welding point position corresponding to the main grid line 4 and the auxiliary grid line 5. The multiple welding strips 3 can be supported one by one by multiple supporting devices, and then spot welding operations can be performed one by one. After the main grid line 4 and the auxiliary grid line 5 are welded, the supporting device can be moved out of the welding point position, that is, the welding strip 3 is no longer supported to complete the welding process of the main grid line 4 and the auxiliary grid line 5.
[0029] In some embodiments, reference Figures 1 to 5 As shown, there are two limiting portions 220, each connected to the two ends of the support portion 210 on the same side. In this way, when the soldering ribbon 3 is placed on the support portion 210, the two limiting portions 220 can respectively limit the two opposite side walls of the soldering ribbon 3 in the second direction, thereby preventing the soldering ribbon 3 from separating from the support portion 210 and causing welding deviation or cold welding, further improving the limiting effect of the soldering ribbon 3.
[0030] It should be noted that, under the premise of being able to limit the welding strip 3, the limiting portion 220 can be constructed as any suitable structure, and the present disclosure does not limit this. For example, reference can be made to Figure 3 As shown, the two limiting portions 220 can be two bosses extending toward the first direction, and the two facing side walls of the two bosses can jointly limit the side walls of the welding strip 3, that is, when the welding strip 3 tends to be separated from the support portion 210 and shifted to a different position, the side wall surfaces of the bosses can fit into the side wall surfaces of the welding strip 3, so that the welding strip 3 can be stably supported by the support portion 210.
[0031] In some embodiments, reference Figures 1 to 5As shown, the limiting portion 220 and the supporting portion 210 jointly form a limiting groove 230 for limiting the position of the welding ribbon 3. The inner sidewall of the limiting groove 230 is formed with a limiting surface that at least partially abuts the outer peripheral wall of the welding ribbon 3. In this way, the limiting groove 230 can accommodate and limit a portion of the welding ribbon 3 within the groove. If the welding ribbon 3 shifts or is about to leave the limiting groove 230, the limiting surface can be in contact with the sidewall of the welding ribbon 3, thereby preventing the welding ribbon 3 from further shifting and causing welding deviation or cold welding.
[0032] In the above embodiment, the limiting groove 230 can be constructed as a groove body of different shapes according to the different shapes of the cross section of the welding strip 3, so as to better limit the welding strip 3. This disclosure will elaborate on this in detail below and will not be repeated here.
[0033] In some embodiments, reference Figure 1 and Figure 3 As shown, the two limiting portions 220 extend along the first direction, the limiting groove 230 includes a U-shaped groove, and the limiting surface includes a first supporting surface 211 formed on the upper surface of the supporting portion 210, and two first limiting surfaces 221 formed on the inner side walls of the two limiting portions 220 and facing each other. In this way, when the cross section of the welding strip 3 is rectangular, that is, Figure 3 As shown in the effect, the first supporting surface 211 in the U-shaped groove can support the bottom surface 301 of the welding strip 3, and the two first limiting surfaces 221 can limit the two opposite side wall surfaces of the welding strip 3, thereby preventing the welding strip 3 from sliding off the supporting portion 210 and causing position deviation.
[0034] In some embodiments, reference Figure 3 As shown, the distance between the two first limiting surfaces 221 is greater than the length of the welding ribbon 3 in the second direction. Through this limiting method, sufficient margin is left between the two first limiting surfaces 221 to allow the welding ribbon 3 to be accommodated in the limiting groove 230. Furthermore, in order to better limit the welding ribbon 3, the distance between the two first limiting surfaces 221 can be greater than the length of the welding ribbon 3 in the second direction + 0.5mm. In this way, the welding ribbon 3 can also have a certain amount of movable margin within the limiting groove 230, and the position of the welding ribbon 3 can be fine-tuned to better perform the welding operation.
[0035] In some embodiments, reference Figure 3 As shown, the U-shaped groove is recessed inwardly along a first direction toward the base 1, and the depth of the U-shaped groove along the first direction is no greater than two-thirds of the length of the welding ribbon 3 along the first direction. In this way, when the welding ribbon 3 is restrained in the groove of the U-shaped groove, the U-shaped groove can expose a portion of the welding ribbon 3 protruding from the highest position of the U-shaped groove, thereby facilitating the welding operation.
[0036] In some embodiments, reference Figure 2 and Figure 4 As shown, the limiting groove 230 also includes an arc groove, and the limiting surface includes a second limiting surface 231 formed on the inner side of the arc groove. In this way, the arc groove can limit and fix the flat welding strip 3 with a circular or fan-shaped cross section, thereby improving the adaptability of the support device to support different types of welding strips 3, that is, you can refer to Figure 4 As shown, the second limiting surface 231 on the arc groove can limit the welding ribbon 3 in the arc groove through its own arc surface when the welding ribbon 3 is about to slide off the support part 210, so as to limit the welding ribbon 3.
[0037] In some embodiments, reference Figure 2 and Figure 4 As shown, the cross-section of the welding ribbon 3 is circular, and the length of the arcuate groove along the second direction is greater than the diameter of the welding ribbon 3. In this way, the arcuate groove leaves sufficient margin to accommodate the welding ribbon 3 with a circular or arcuate cross-section. In addition, with this arrangement, the welding ribbon 3 can also have a certain amount of movement margin in the arcuate groove, so that the welding point can be fine-tuned before welding.
[0038] In some embodiments, reference Figure 2 and Figure 4 As shown, the arcuate groove extends along the first direction to a depth greater than one-third of the diameter of the welding ribbon 3 and less than two-thirds of the diameter of the welding ribbon 3. In this way, within the range defined by the above method, the welding ribbon 3 can have a certain amount of movement margin within the arcuate groove, and the phenomenon of deviation of the welding ribbon resulting in welding deviation can also be reduced.
[0039] In a second aspect of the present disclosure, a support device group is provided, referring to Figures 1 to 5 As shown, the support device group includes the support devices mentioned in the above embodiment, and the support device has all the beneficial effects of the above embodiment. A plurality of support devices are arranged at intervals along the length direction of the welding strip 3, and a plurality of support devices are also arranged at intervals along the second direction. The plurality of support devices are used together to support the plurality of welding strips 3. In this way, the plurality of support devices can jointly support the plurality of welding strips 3, so that the plurality of main grid lines 4 and the plurality of auxiliary grid lines 5 can be welded, that is, reference can be made to Figure 5 As shown, after arranging multiple main grid lines 4 and multiple auxiliary grid lines 5, and coating the multiple auxiliary grid lines 5 with insulating glue, the operation is completed, the long uncut welding strip 3 can be cut into multiple parts, and the bottom surface 301 of the welding strip 3 can be supported by the supporting parts 210 of multiple supporting devices, and then the multiple welding strips 3 are aligned with the positions where welding is required to be performed, and the welding operation is performed. After the main grid lines 4 and the auxiliary grid lines 5 are welded together through the welding strips 3, the multiple supporting devices can be removed to complete the overall process of welding the welding strips 3.
[0040] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.
[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0042] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A supporting device for supporting a welding strip, characterized in that: include: base; A support member is connected to the upper end of the base and includes a supporting portion and a limiting portion, wherein the supporting portion is used to support the bottom surface of the welding strip in a first direction, and the limiting portion is located to the side of the supporting portion in a second direction, and is used to limit the welding strip in the second direction, wherein the first direction is perpendicular to the second direction.
2. The support device according to claim 1, characterized in that There are two limiting portions, and the two limiting portions are respectively connected to two ends of the supporting portion located on the same side.
3. The supporting device according to claim 2, characterized in that The limiting portion and the supporting portion jointly form a limiting groove for limiting the welding strip, and an inner side wall of the limiting groove is formed with a limiting surface that at least partially abuts against the outer peripheral wall of the welding strip.
4. The supporting device according to claim 3, characterized in that The two limiting portions extend along the first direction, the limiting groove includes a U-shaped groove, and the limiting surface includes a first supporting surface formed on the upper surface of the supporting portion, and two first limiting surfaces respectively formed on the inner side walls of the two limiting portions and opposite to each other.
5. The supporting device according to claim 4, characterized in that: The distance between the two first limiting surfaces is greater than the length of the welding strip in the second direction.
6. The supporting device according to claim 5, characterized in that The U-shaped groove is recessed inwardly along the first direction toward the base, and a depth of the U-shaped groove along the first direction is no more than two-thirds of a length of the welding strip along the first direction.
7. The supporting device according to claim 3, characterized in that: The limiting groove further includes an arc-shaped groove, and the limiting surface includes a second limiting surface formed on the inner side of the arc-shaped groove.
8. The supporting device according to claim 7, characterized in that: The cross section of the welding strip is circular, and the length of the arc-shaped groove along the second direction is greater than the diameter of the welding strip.
9. The supporting device according to claim 8, characterized in that An extension depth of the arc-shaped groove along the first direction is greater than one-third of the diameter of the welding strip and less than two-thirds of the diameter of the welding strip.
10. A support device assembly, characterized in that: It comprises the supporting device according to any one of claims 1 to 9, wherein a plurality of the supporting devices are arranged at intervals along the length direction of the welding strip, and a plurality of the supporting devices are also arranged at intervals along the second direction, and the plurality of supporting devices are used together to support a plurality of the welding strips.