Folding high current connection aluminum bar structure

Abstract

The utility model discloses a folding type high current connection aluminum bar structure, including basic layer, the basic layer includes the first fixed sheet, the connecting piece and the second fixed sheet that connect integrally in turn horizontally, the one side of connecting piece is reversely folded and extended and has the folding layer, and the folding layer is compatible with connecting piece and is superimposed on connecting piece. Through the one side of connecting piece is reversely folded and extended and has the folding layer, the folding layer is compatible with connecting piece and is superimposed on connecting piece, and the thickness of superimposed is the thickness of connecting piece or folding layer twice, makes the conductive current and can turn a double, to better satisfy the requirement of the high current through, and its overall structure is simple, and easy to make, and need not select the base material of thickness thicker, makes the aluminum bar manufacturing cost can effectively reduce.

Description

Technical Field

[0001] This utility model relates to the field of aluminum bus technology, and in particular to a foldable high-current connection aluminum bus structure. Background Technology

[0002] "Aluminum busbar" is a common term in the industry; its formal name is usually "aluminum busbar" or "aluminum busbar." It is a conductive connection component made primarily of aluminum alloy and is widely used in new energy, power electronics, rail transportation, and other fields. As a bridge for current transmission, the aluminum busbar is used to connect multiple conductive units in battery modules, electronic control systems, or power equipment to achieve efficient and stable power distribution.

[0003] Current aluminum bars typically use high-conductivity aluminum alloys (such as 1060, 3003, 6063, etc.) as their base material, achieving a conductivity of 60%-65% IACS (International Standard for Annealed Copper). The base material undergoes surface treatment to improve corrosion resistance and weldability, often involving nickel plating, tin plating, or passivation. Aluminum bars are usually flat, with a thickness typically ranging from 0.5-3mm, and the width is designed according to current requirements (e.g., 10-100mm). Furthermore, aluminum bars feature holes / grooves for easy bolt fixing or laser welding; the hole diameter accuracy must be controlled within ±0.05mm.

[0004] However, current aluminum bars are generally single-layered structures, which have a relatively small current carrying capacity and cannot adequately meet the requirements for high current transmission. To increase the current carrying capacity, the main method currently used is to select a thicker substrate, which significantly increases the manufacturing cost of the aluminum bars. Therefore, it is necessary to study a solution to the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a foldable high-current connection aluminum bar structure, which can effectively solve the problems of existing aluminum bars that are difficult to meet current carrying requirements or have high manufacturing costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A foldable high-current connection aluminum bar structure includes a base layer, which includes a first fixing piece, a connecting piece, and a second fixing piece that are integrally formed and connected laterally in sequence; one side of the connecting piece is folded in the opposite direction to extend out a folded layer, which is adapted to and superimposed on the connecting piece.

[0008] As a preferred embodiment, the connecting piece includes two first upper horizontal segments and one first lower horizontal segment. The two first upper horizontal segments are at the same horizontal height, and the height of the first lower horizontal segment is less than the height of the first upper horizontal segment. The two ends of the first lower horizontal segment are integrally formed and connected to the two first upper horizontal segments through two first bending segments. The folded layer includes two second upper horizontal segments and one second lower horizontal segment. The two second upper horizontal segments are at the same horizontal height and are respectively stacked on the two first upper horizontal segments. The height of the second lower horizontal segment is less than the height of the second upper horizontal segment, and the second lower horizontal segment is stacked on the first lower horizontal segment. The two ends of the second lower horizontal segment are integrally formed and connected to the two second upper horizontal segments through two second bending segments. The two second bending segments are respectively stacked on the two first bending segments.

[0009] As a preferred embodiment, one side of each of the two second upper horizontal segments is integrally connected to one side of each of the two first upper horizontal segments through a bending portion. The second lower horizontal segment is separated from the first lower horizontal segment, and the two second bending segments are separated from the two first bending segments, so that the folded layer as a whole can be better stacked on the connecting piece, and the stacking tightness is better.

[0010] As a preferred embodiment, the first fixing piece has a first circular hole and a first strip hole, the first strip hole extending longitudinally, and the second fixing piece has a second circular hole and a second strip hole, the second strip hole extending longitudinally.

[0011] As a preferred embodiment, the first fixing plate has a positioning hole, which is elongated and extends laterally.

[0012] As a preferred embodiment, the thickness of both the base layer and the folded layer is 1.5 mm.

[0013] As a preferred embodiment, both the base layer and the folded layer are made of AL1060 material.

[0014] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0015] By folding one side of the connecting piece in the opposite direction to extend a folded layer, the folded layer is adapted to the connecting piece and overlapped on the connecting piece. The thickness of the overlapped layer is twice the thickness of the connecting piece or the folded layer, which doubles the conductive current to better meet the requirements of high current passage. Its overall structure is simple and easy to manufacture, and there is no need to use a thicker substrate, which can effectively reduce the manufacturing cost of aluminum bars.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of a preferred embodiment of the present utility model;

[0018] Figure 2 This is a perspective view of another preferred embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention.

[0020] Explanation of reference numerals in the attached diagram:

[0021] 10. Base layer 11. First fixing piece

[0022] 111. First circular hole; 112. First strip hole

[0023] 113, Positioning hole 12, Connecting piece

[0024] 121. First upper level section 122. First lower level section

[0025] 123, First bending section; 13, Second fixing piece

[0026] 131. Second round hole; 132. Second strip hole

[0027] 101. Bending section; 20. Folded layer

[0028] 21. Second upper horizontal section 22. Second lower horizontal section

[0029] 23. Second bend section Detailed Implementation

[0030] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a base layer 10.

[0031] The base layer 10 includes a first fixing piece 11, a connecting piece 12, and a second fixing piece 13 that are sequentially and integrally formed laterally; one side of the connecting piece 12 is folded in the opposite direction to extend a folded layer 20, which is adapted to and overlaps the connecting piece 12. Specifically:

[0032] The base layer 10 has a thickness of 1.5 mm and is made of AL1060 material. The first fixing piece 11 has a first circular hole 111 and a first strip-shaped hole 112, the first strip-shaped hole 112 extending longitudinally; and a positioning hole 113, which is elongated and extends laterally, is also provided on the first fixing piece 11. The connecting piece 12 includes two first upper horizontal sections 121 and a first lower horizontal section 122. The two first upper horizontal sections 121 are at the same horizontal height, and the height of the first lower horizontal section 122 is less than the height of the first upper horizontal section 121. The two ends of the first lower horizontal section 122 are integrally connected to the two first upper horizontal sections 121 via two first bending sections 123. The second fixing piece 13 has a second circular hole 131 and a second strip-shaped hole 132, the second strip-shaped hole 132 extending longitudinally.

[0033] The folded layer 20 has a thickness of 1.5 mm and is made of AL1060 material. The folded layer 20 includes two second upper horizontal sections 21 and a second lower horizontal section 22. The two second upper horizontal sections 21 are at the same horizontal height and are respectively stacked on two first upper horizontal sections 121. The height of the second lower horizontal section 22 is less than the height of the second upper horizontal section 21 and is stacked on the first lower horizontal section 122. The two ends of the second lower horizontal section 22 are integrally connected to the two second upper horizontal sections 21 through two second bending sections 23, and the two second bending sections 23 are respectively stacked on the two first bending sections 123. Furthermore, one side of each of the two second upper horizontal segments 21 is integrally connected to one side of each of the two first upper horizontal segments 121 through a bending portion 101. The second lower horizontal segment 22 is separated from the first lower horizontal segment 122, and the two second bending segments 23 are separated from the two first bending segments 123, so that the folded layer 20 is better stacked on the connecting piece 12, and the stacking tightness is better.

[0034] During manufacturing, this product uses a mold to sequentially process material cutting, bending at a 90° angle, pressing at a -70° angle, and folding to form the shape. In use, this product is particularly suitable for connecting battery cells in new energy vehicle modules. The first fixing plate 11 and the second fixing plate 13 are respectively fixed to two adjacent battery cells, and the connecting plate 12 and the folded layer 20 are simultaneously electrically connected between the two adjacent battery cells. Because the connecting plate 12 and the folded layer 20 are stacked, the thickness of the stacked layer is twice the thickness of either the connecting plate 12 or the folded layer 20, thus doubling the conductive current to better meet the requirements of high current flow.

[0035] The key design feature of this invention is that a folded layer is extended by folding one side of the connecting piece in the opposite direction. This folded layer is adapted to the connecting piece and overlaps on the connecting piece. The thickness of the overlapped layer is twice the thickness of the connecting piece or the folded layer, which doubles the conductive current to better meet the requirements of high current passage. Its overall structure is simple and easy to manufacture. Furthermore, it does not require the use of a thicker substrate, which effectively reduces the manufacturing cost of the aluminum bar.

[0036] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A foldable high-current connection aluminum bar structure, comprising a base layer, the base layer including a first fixing piece, a connecting piece, and a second fixing piece sequentially and integrally formed in the transverse direction; characterized in that: One side of the connector is folded in the opposite direction to extend a folded layer, which is adapted to and overlaps the connector.

2. The foldable high-current connection aluminum bar structure according to claim 1, characterized in that: The connecting piece includes two first upper horizontal sections and one first lower horizontal section. The two first upper horizontal sections are at the same horizontal height, and the height of the first lower horizontal section is less than the height of the first upper horizontal section. The two ends of the first lower horizontal section are integrally formed and connected to the two first upper horizontal sections through two first bending sections. The folded layer includes two second upper horizontal sections and one second lower horizontal section. The two second upper horizontal sections are at the same horizontal height and are respectively stacked on the two first upper horizontal sections. The height of the second lower horizontal section is less than the height of the second upper horizontal section and is stacked on the first lower horizontal section. The two ends of the second lower horizontal section are integrally formed and connected to the two second upper horizontal sections through two second bending sections. The two second bending sections are respectively stacked on the two first bending sections.

3. The foldable high-current connection aluminum bar structure according to claim 2, characterized in that: The two second upper horizontal sections are integrally connected to one side of the two first upper horizontal sections by bending portions. The second lower horizontal section is separated from the first lower horizontal section. The two second bending sections are also separated from the two first bending sections.

4. The foldable high-current connection aluminum bar structure according to claim 1, characterized in that: The first fixing plate has a first circular hole and a first strip hole, the first strip hole extending longitudinally; the second fixing plate has a second circular hole and a second strip hole, the second strip hole extending longitudinally.

5. The foldable high-current connection aluminum bar structure according to claim 1, characterized in that: The first fixing plate has a positioning hole, which is elongated and extends laterally.

6. The foldable high-current connection aluminum bar structure according to claim 1, characterized in that: The thickness of both the base layer and the folded layer is 1.5 mm.

7. The foldable high-current connection aluminum bar structure according to claim 1, characterized in that: Both the base layer and the folded layer are made of AL1060 material.

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