A multi-layer laminated aluminum soft strip busbar welding fixture and a welding method

Abstract

The application provides a multi-layer laminated aluminum soft strip busbar welding mold, which comprises a first support, a second support and a third support; a first clamping piece is detachably arranged on the first support, and the first clamping piece is used for positioning an aluminum busbar block when the first support supports the aluminum busbar block; the second support is higher than the first support, a second clamping piece is detachably arranged on the second support, and the second clamping piece is used for positioning another aluminum busbar block when the second support supports the another aluminum busbar block; an arc-shaped bracket is connected with the first support and the second support at two ends respectively, and the arc-shaped bracket is used for supporting an aluminum electrolysis soft strip. The welding mold can guarantee the welding quality of each layer of aluminum soft strip, and can be suitable for various specifications of aluminum soft strip and the requirement of appearance arc, compared with other devices, the efficiency can be improved, the device is green and environment-friendly, material can be saved, and the construction quality can be guaranteed.

Description

Technical Field

[0001] This invention relates to the field of aluminum busbar block manufacturing and installation technology, and more specifically, to a welding jig and welding method for multi-layer laminated aluminum flexible strip busbars. Background Technology

[0002] During the fabrication and installation of aluminum busbar blocks, connections between short-circuit busbars and cathode aluminum busbar blocks often require the use of hundreds of layers of aluminum flexible strips. Because aluminum flexible strips are relatively soft and easily bent and stretched, they can be manually bent piece by piece without tools. However, when connecting aluminum busbar blocks, each piece of aluminum flexible strip must be welded properly. Therefore, controlling the welding quality and the required curvature of the aluminum flexible strips after welding is difficult. Previous methods included: Method 1: For multi-layer connections using aluminum flexible strips, brazing filler metal was placed around the aluminum flexible strips and between each layer, and then connected using flame heating. This method is inefficient, increases material costs, and is not suitable for connections of hundreds of layers. Method 2: The ends of the aluminum flexible strips were welded to aluminum plates before being connected to the aluminum busbar blocks. This method is aesthetically unappealing, and the conductive area is lower than that of connections between individual layers. Summary of the Invention

[0003] In view of this, the present invention provides a welding fixture for multi-layer laminated aluminum flexible strip busbars, comprising:

[0004] The first bracket is detachably equipped with a first clip to position the aluminum busbar block when the first bracket supports the aluminum busbar block.

[0005] The second bracket is higher than the first bracket and is detachably equipped with a second clip to position the other aluminum busbar block when the second bracket supports the other aluminum busbar block.

[0006] An arc-shaped bracket, with its two ends connected to the first bracket and the second bracket respectively, is used to support the aluminum electrolytic soft mother tape.

[0007] Furthermore, the first support includes a first leg and a first base; the first base is disposed between the two first legs to form a first base unit, and the two first base units are correspondingly disposed to form the first support, and at the same time form a structure in which the two first bases are arranged in parallel and correspondingly for directly supporting the aluminum busbar block. The first clip is detachably clipped onto the first base for positioning the aluminum busbar block.

[0008] Furthermore, the second support includes a second leg and a second support base. The height of the second leg is higher than the height of the first leg. The second support base is disposed between the two second legs to form a second base unit. The second support base is positioned higher than the first support base. The two second base units are correspondingly arranged to form the second support, and at the same time, a structure is formed in which the two second supports are arranged in parallel and correspondingly for directly supporting the other aluminum busbar block. The second clip is detachably clipped onto the second support base for positioning the other aluminum busbar block.

[0009] Furthermore, the arc-shaped bracket includes a first C-shaped support leg, a second C-shaped support leg, and an arc-shaped support member; one side of the first C-shaped support leg is connected to the first bracket, and its height is adapted to the first bracket; one side of the second C-shaped support leg is connected to the second bracket, and its height is adapted to the second bracket; both ends of the arc-shaped support member are respectively connected to the first C-shaped support leg and the second C-shaped support leg; the aluminum electrolytic soft mother tape is placed according to the arc-shaped trend of the arc-shaped support member, which can ensure the appearance curvature of the aluminum electrolytic soft mother tape.

[0010] Furthermore, aluminum strips are also provided at both ends of the arc-shaped bracket to prevent excessive current from causing burn-through during the welding process of the bottom layer of aluminum electrolytic soft mother tape.

[0011] The present invention provides a multi-layer laminated aluminum flexible strip busbar welding fixture, which has the following advantages: This device can ensure the welding quality of each layer of aluminum flexible strip, and is also suitable for various specifications of aluminum flexible strip and appearance curvature requirements. Compared with other devices, it can improve efficiency, is environmentally friendly, save materials, and ensure construction quality.

[0012] Another aspect of the present invention provides a method for welding multilayer laminated aluminum flexible strip busbars, comprising the following steps:

[0013] (i) Adjust the snap-fit ​​position of the clips. Adjust the position of the first clip and the second clip on the first bracket and the second bracket according to the size of the aluminum busbar block.

[0014] (ii) Place the aluminum busbar blocks. According to the positions of the two clips, place the two aluminum busbar blocks into the preset positions;

[0015] (III) Welding of aluminum electrolytic soft busbar: Place the aluminum electrolytic soft busbar on the arc-shaped bracket and weld both ends of the aluminum electrolytic soft busbar to the two aluminum busbar blocks.

[0016] Furthermore, during the welding of the aluminum electrolytic soft mother tape, spot welding is performed 2cm away from both ends of the aluminum electrolytic soft mother tape.

[0017] Furthermore, during the welding of aluminum electrolytic soft mother tape, when assembling multiple pieces, the length of each piece is shortened from bottom to top on both sides to form a 60° bevel from the outside to the inside.

[0018] Furthermore, each piece of aluminum electrolytic soft mother tape at the bevel is ground to facilitate welding with the aluminum busbar block.

[0019] Furthermore, before placing the aluminum electrolytic soft mother tape, aluminum strips are placed at both ends of the arc-shaped bracket to prevent excessive current from causing burn-through during the welding of the bottom layer of aluminum electrolytic soft mother tape.

[0020] The multi-layer laminated aluminum flexible strip busbar welding method provided by this invention has the following advantages: This method can not only adapt to the requirements of aluminum flexible strips with various appearance curvatures, but also ensures that each piece of aluminum flexible strip is connected to the aluminum busbar block in place, ensuring construction quality. Moreover, multiple pieces can be combined during the shearing of aluminum flexible strip rolls, which is simple to operate and speeds up construction efficiency. Furthermore, the materials in this device can all be obtained on-site during aluminum busbar block projects, saving costs. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 This is a front view schematic diagram of the welding fixture for multi-layer laminated aluminum flexible strip busbars provided in an embodiment of the present invention;

[0023] Figure 2 A top view of the multi-layer laminated aluminum flexible strip busbar welding fixture provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the arc-shaped bracket provided in an embodiment of the present invention;

[0025] In the diagram, 1 is the first support, 2 is the second support, 3 is the arc-shaped bracket, 4 is the aluminum busbar block, 5 is another aluminum busbar block, and 6 is the aluminum electrolytic soft busbar tape.

[0026] 1. First leg; 12. First support; 13. First clamp; 21. Second leg; 22. Second support; 23. Second clamp; 31. First C-shaped leg; 32. Second C-shaped leg; 33. Arc-shaped support; 34. Aluminum strip. Detailed Implementation

[0027] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] See Figure 1-3 This invention proposes a welding fixture for multi-layer laminated aluminum flexible strip busbars, comprising a first support 1, a second support 2, and an arc-shaped bracket 3; the first support 1 is detachably equipped with a first clamp 13, which positions the aluminum busbar block 4 when the first support 1 supports the aluminum busbar block 4; the second support 2 is higher than the first support 1 and is detachably equipped with a second clamp 2, which positions the other aluminum busbar block 5 when the second support 2 supports the other aluminum busbar block 5; the arc-shaped bracket 3 is connected to the first support 1 and the second support 2 at both ends, and the arc-shaped bracket 3 is used to support the aluminum electrolytic flexible busbar 6.

[0029] Reference Figure 1-2 As shown, the first support 1 includes a first leg 11 and a first support 12. The first support 12 is disposed between two first legs 11 to form a first base unit. The two first base units are correspondingly arranged to form the first support 1, and at the same time, two first supports 12 are arranged in parallel and correspondingly to directly support the aluminum busbar block 4. The first clamp 13 is detachably clamped onto the first support 12 to position the aluminum busbar block 4. In this embodiment, the first leg can be made of square tubing, and the first support and the first clamp can be made of angle steel.

[0030] Continue to refer to Figure 1-2 As shown, the second support 2 includes a second leg 21 and a second support 22. The height of the second leg 21 is higher than the height of the first leg 11. The second support 22 is disposed between the two second legs 21 to form a second base unit. The second support 22 is positioned higher than the first support 12. The two second base units are correspondingly arranged to form the second support 2, and simultaneously form a structure in which the two second supports 22 are arranged in parallel and correspondingly for directly supporting the other aluminum busbar block 5. The second clamp 23 is detachably clamped onto the second support 22 for positioning the other aluminum busbar block 5. In this embodiment, the second leg can be made of square tubing, and the second support and the second clamp can be made of angle steel.

[0031] Reference Figure 1-3 As shown, the arc-shaped bracket 3 includes a first C-shaped support leg 31, a second C-shaped support leg 32, and an arc-shaped support member 33; one side of the first C-shaped support leg 31 is connected to the first bracket 1, and its height is adapted to the first bracket 1; one side of the second C-shaped support leg 32 is connected to the second bracket 2, and its height is adapted to the second bracket 2; both ends of the arc-shaped support member 33 are respectively connected to the first C-shaped support leg 31 and the second C-shaped support leg 32; the aluminum electrolytic soft mother tape 6 is placed according to the arc-shaped trend of the arc-shaped support member 33, which can ensure the appearance curvature of the aluminum electrolytic soft mother tape 6.

[0032] Reference Figure 1 , 3 As shown, aluminum strips 34 are also provided at both ends of the arc-shaped bracket 3 to prevent excessive current from causing the bottom aluminum electrolytic soft mother tape 6 to burn through during the welding process.

[0033] The present invention provides a multi-layer laminated aluminum flexible strip busbar welding fixture, which has the following advantages: This device can ensure the welding quality of each layer of aluminum flexible strip while being applicable to various specifications of aluminum flexible strip and the requirements of appearance curvature. Compared with other devices, it can improve efficiency, be environmentally friendly, save materials, and ensure construction quality.

[0034] Another aspect of the present invention provides a method for welding multilayer laminated aluminum flexible strip busbars, comprising the following steps:

[0035] (i) Adjust the snap-fit ​​position of the clips. Adjust the position of the first clip 13 and the second clip 23 on the first bracket 1 and the second bracket 2 according to the size of the aluminum busbar blocks (i.e., aluminum busbar block 4 and aluminum busbar block 5).

[0036] (ii) Place the aluminum busbar blocks. According to the positions of the two clips (i.e., the first clip 13 and the second clip 23), place the two aluminum busbar blocks (i.e., aluminum busbar block 4 and aluminum busbar block 5) into the preset positions.

[0037] (III) Welding of aluminum electrolytic soft busbar 6: Place aluminum electrolytic soft busbar 6 on the arc-shaped bracket 3 and weld both ends of aluminum electrolytic soft busbar 6 to two aluminum busbar blocks (i.e. aluminum busbar block 4 and aluminum busbar block 5).

[0038] In this embodiment, when welding the aluminum electrolytic soft mother tape 6, spot welding is performed 2cm away from both ends of the aluminum electrolytic soft mother tape 6.

[0039] In this embodiment, during the welding of aluminum electrolytic soft mother tape 6, when multiple pieces are combined, the length of each piece is shortened from bottom to top on both sides to form a 60° bevel from the outside to the inside.

[0040] In this embodiment, each piece of aluminum electrolytic soft mother tape 6 at the bevel is polished to facilitate welding with the aluminum busbar blocks (i.e., aluminum busbar block 4 and aluminum busbar block 5).

[0041] In this embodiment, before placing the aluminum electrolytic soft mother tape 6, aluminum strips 34 are placed at both ends of the arc-shaped bracket 3 to prevent excessive current from causing the bottom layer of aluminum electrolytic soft mother tape 6 to burn through during welding.

[0042] A preferred embodiment of a welding method for multi-layer laminated aluminum flexible strip busbars is as follows:

[0043] The aluminum busbar block is adjusted according to the place where the aluminum electrolytic soft busbar 6 is welded. The fixed position of the first clip 13 on the first bracket 1 is adjusted. The aluminum busbar block 4 and aluminum busbar block 5 are placed on the first bracket 1 and the second bracket 2 respectively. The first clip 13 is attached and set. Aluminum strips 34 are placed at both ends of the arc bracket 3.

[0044] Each piece of aluminum electrolytic soft mother tape is assembled in multiple layers, such as 5, 8, or 10 pieces, and then spot-welded 2cm from both ends. When assembling multiple pieces, the length of each piece is shortened from bottom to top on both sides to form a 60° bevel from the outside to the inside. Each piece of aluminum electrolytic soft mother tape at the bevel is then polished to facilitate welding with aluminum busbar block 4 and aluminum busbar block 5. The multiple pieces of aluminum electrolytic soft mother tape are then placed on the arc-shaped support 33 and pressed directly to achieve the desired curvature. The process is repeated from bottom to top, and finally, hundreds of layers of aluminum electrolytic soft mother tape are welded together to form a connection.

[0045] The multi-layer laminated aluminum flexible strip busbar welding method provided by this invention has the following advantages: This method can not only adapt to the requirements of aluminum flexible strips with various appearance curvatures, but also ensures that each piece of aluminum flexible strip is connected to the aluminum busbar block in place, ensuring construction quality. Moreover, multiple pieces can be combined during the shearing of aluminum flexible strip rolls, which is simple to operate and speeds up construction efficiency. Furthermore, the materials in this device can all be obtained on-site during aluminum busbar block projects, saving costs.

[0046] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0047] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A welding fixture for multi-layer laminated aluminum flexible strip busbars, characterized in that, include: The first bracket is detachably equipped with a first clip to position the aluminum busbar block when the first bracket supports the aluminum busbar block. The second bracket is higher than the first bracket and is detachably equipped with a second clip to position the other aluminum busbar block when the second bracket supports the other aluminum busbar block. An arc-shaped bracket, with its two ends connected to the first bracket and the second bracket respectively, is used to support the aluminum electrolytic soft mother tape; The first support includes a first leg and a first support; the first support is disposed between the two first legs to form a first base unit, and the two first base units are correspondingly arranged to form the first support, and at the same time, a structure in which two first supports are arranged in parallel and correspondingly to directly support the aluminum busbar block. The first clip is detachably clipped onto the first support to position the aluminum busbar block. The second support includes a second leg and a second support base. The height of the second leg is higher than the height of the first leg. The second support base is disposed between the two second legs to form a second base unit. The second support base is positioned higher than the first support base. The two second base units are correspondingly arranged to form the second support, and at the same time, a structure is formed in which the two second supports are arranged in parallel and correspondingly for directly supporting the other aluminum busbar block. The second clip is detachably clipped onto the second support base for positioning the other aluminum busbar block. The arc-shaped bracket includes a first C-shaped support leg, a second C-shaped support leg, and an arc-shaped support member; one side of the first C-shaped support leg is connected to the first bracket, and its height is adapted to the first bracket; one side of the second C-shaped support leg is connected to the second bracket, and its height is adapted to the second bracket; both ends of the arc-shaped support member are respectively connected to the first C-shaped support leg and the second C-shaped support leg; the aluminum electrolytic soft mother tape is placed according to the arc-shaped trend of the arc-shaped support member, which can ensure the appearance curvature of the aluminum electrolytic soft mother tape; The two ends of the arc-shaped bracket are also equipped with aluminum strips to prevent excessive current from causing burn-through during the welding process of the bottom layer of aluminum electrolytic soft mother tape.

2. A method for welding multi-layer laminated aluminum flexible strip busbars, using the welding fixture for multi-layer laminated aluminum flexible strip busbars as described in claim 1, characterized in that, Includes the following steps: (i) Adjust the snap-fit ​​position of the clips. Adjust the position of the first clip and the second clip on the first bracket and the second bracket according to the size of the aluminum busbar block. (ii) Place the aluminum busbar blocks. According to the positions of the two clips, place the two aluminum busbar blocks into the preset positions; (III) Welding of aluminum electrolytic soft busbar: Place the aluminum electrolytic soft busbar on the arc-shaped bracket and weld both ends of the aluminum electrolytic soft busbar to the two aluminum busbar blocks.

3. The welding method for multi-layer laminated aluminum flexible strip busbars according to claim 2, characterized in that, When welding the aluminum electrolytic soft mother tape, spot welding is performed 2cm away from both ends of the aluminum electrolytic soft mother tape.

4. The welding method for multi-layer laminated aluminum flexible strip busbars according to claim 2, characterized in that, During the welding of aluminum electrolytic soft mother tape, when assembling multiple pieces, the length of each piece is shortened from bottom to top on both sides to form a 60° bevel from the outside to the inside.

5. The welding method for multi-layer laminated aluminum flexible strip busbars according to claim 2, characterized in that, Each piece of aluminum electrolytic soft mother tape at the bevel is ground to facilitate welding with the aluminum busbar block.

6. The welding method for multi-layer laminated aluminum flexible strip busbars according to claim 2, characterized in that, Before placing the aluminum electrolytic soft mother tape, aluminum strips are placed at both ends of the arc-shaped bracket to prevent excessive current from causing burn-through during the welding of the bottom layer of aluminum electrolytic soft mother tape.

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