Cold rolling type copper-aluminum composite plate strip

Abstract

The utility model belongs to the technical field of composite plate strips, and particularly relates to a cold rolling type copper-aluminum composite plate strip which comprises an aluminum plate layer and a copper plate layer, a glass fiber net layer is adhered between the aluminum plate layer and the copper plate layer through glue, and the aluminum plate layer is fixedly connected with the glass fiber net layer and the copper plate layer in a cold rolling mode. Grooves are formed in the end faces, away from each other, of the aluminum plate layer and the copper plate layer, aluminum frames are arranged at the outer ends of the aluminum plate layer and the copper plate layer, two protruding strips distributed up and down are fixedly connected to the inner wall of each aluminum frame, and the two protruding strips are located in the two grooves respectively. According to the utility model, under the mutual cooperation of the glass fiber mesh layer, the raised lines, the grooves and the aluminum frame, the aluminum plate layer and the copper plate layer can be more tightly connected together, and meanwhile, the probability of dislocation and even separation of the aluminum plate layer and the copper plate layer can be reduced through the high-strength combination of the aluminum plate layer and the copper plate layer.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite strip, and particularly relates to a cold-rolled copper-aluminum composite strip. Background Art

[0002] The copper-aluminum composite strip is a composite material with a layer of copper coated on the surface of an aluminum plate. Replacing the widely used and highly demanded purple copper strip with the copper-aluminum composite strip has broad application prospects in the fields of power and signal transmission.

[0003] In the prior art, directly compounding a copper plate and an aluminum plate has the defect of low bonding strength, and after being used for a period of time, problems such as dislocation or even separation of the copper plate and the aluminum plate are likely to occur, thus affecting the normal use of the copper-aluminum composite strip. Summary of the Invention

[0004] The purpose of the utility model is to provide a cold-rolled copper-aluminum composite strip, which has the function of improving the bonding strength between the copper plate and the aluminum plate, making the connection between the two more tight and not easily dislocated or even separated.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: providing a cold-rolled copper-aluminum composite strip, including an aluminum plate layer and a copper plate layer. A glass fiber mesh layer is adhesively connected between the aluminum plate layer and the copper plate layer by glue. The aluminum plate layer is fixedly connected to the glass fiber mesh layer and the copper plate layer through cold rolling. Grooves are formed on the end faces of the aluminum plate layer and the copper plate layer away from each other. An aluminum frame is arranged at the outer ends of the aluminum plate layer and the copper plate layer. Two protruding strips distributed up and down are fixedly connected to the inner wall of the aluminum frame, and the two protruding strips are respectively located in the two grooves.

[0006] Optionally, the two protruding strips are fixedly connected to the two grooves through cold rolling, and the two protruding strips and the two grooves are placed in parallel.

[0007] Optionally, the end face shape of the aluminum frame in the front view is C-shaped, and the aluminum plate layer, the copper plate layer and the glass fiber mesh layer are all located inside the aluminum frame. The aluminum frame is fixedly connected to the aluminum plate layer and the copper plate layer through cold rolling.

[0008] Optionally, the thickness of the aluminum plate layer is 4.5 mm, the thickness of the copper plate layer is 1.5 mm, and the thickness of the glass fiber mesh layer is 0.5 mm.

[0009] Optionally, the height of the groove is 0.5 mm, and the protruding strip fits with the groove.

[0010] Optionally, the number of meshes of the glass fiber mesh layer is 100 meshes.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] With the mutual cooperation of the fiberglass mesh layer, the convex strips, the grooves and the aluminum frame, the utility model can make the aluminum plate layer and the copper plate layer be connected together more closely. At the same time, the high-strength combination between the two can reduce the probability of dislocation or even separation of the aluminum plate layer and the copper plate layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0015] Figure 2 For the present utility model Figure 1 It is an enlarged structural schematic diagram at A in the present utility model;

[0016] Figure 3 It is a top-down three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 4 It is an exploded structural schematic diagram of the present utility model.

[0018] In the figure: 1, aluminum plate layer; 2, copper plate layer; 3, fiberglass mesh layer; 4, aluminum frame; 5, convex strip; 6, groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0023] Please refer to Figures 1 - 4 , and now a cold-rolled copper-aluminum composite strip provided by an embodiment of the present utility model will be described. A cold-rolled copper-aluminum composite strip includes an aluminum plate layer 1 and a copper plate layer 2. A glass fiber mesh layer 3 is adhesively connected between the aluminum plate layer 1 and the copper plate layer 2 with glue. The aluminum plate layer 1 is fixedly connected to the glass fiber mesh layer 3 and the copper plate layer 2 by cold rolling. Grooves 6 are formed on the end faces of the aluminum plate layer 1 and the copper plate layer 2 that are away from each other. Aluminum frames 4 are provided at the outer ends of the aluminum plate layer 1 and the copper plate layer 2. Two protruding strips 5 are fixedly connected to the inner wall of the aluminum frame 4 and are distributed vertically. And the two protruding strips 5 are respectively located in the two grooves 6.

[0024] Compared with the prior art, for the cold-rolled copper-aluminum composite strip provided by the present utility model, with the mutual cooperation of the glass fiber mesh layer 3, the protruding strips 5, the grooves 6 and the aluminum frames 4, the aluminum plate layer 1 and the copper plate layer 2 can be more closely connected together. At the same time, the high-strength combination between the two can reduce the probability of misalignment or even separation of the aluminum plate layer 1 and the copper plate layer 2.

[0025] In another embodiment of the present utility model, please refer to Figures 1 to 4, the two convex strips 5 are fixedly connected by cold rolling with the two grooves 6 respectively, and the two convex strips 5 and the two grooves 6 are placed in parallel; the end face shape of the aluminum frame 4 in the front view is C-shaped, and the aluminum plate layer 1, the copper plate layer 2 and the glass fiber mesh layer 3 are all located inside the aluminum frame 4, and the aluminum frame 4 is fixedly connected by cold rolling with the aluminum plate layer 1 and the copper plate layer 2; the thickness of the aluminum plate layer 1 is 4.5 mm, the thickness of the copper plate layer 2 is 1.5 mm, and the thickness of the glass fiber mesh layer 3 is 0.5 mm; the height of the groove 6 is 0.5 mm, and the convex strip 5 fits with the groove 6; the mesh number of the glass fiber mesh layer 3 is 100 meshes. During operation, before pressing, the aluminum plate layer 1 is not only adhered to the copper plate layer 2 by relying on the glass fiber mesh layer 3, but also the positions of the aluminum plate layer 1 and the copper plate layer 2 are restricted through the cooperation of the groove 6, the convex strip 5 and the aluminum frame 4, so that when the aluminum plate layer 1 and the copper plate layer 2 are pressed, the connection between the two is closer and not easy to separate; for the glass fiber mesh layer 3 with 100 meshes, the larger the mesh number, the larger the contact area with the aluminum plate layer 1 and the copper plate layer 2, and the better the bonding combination of the aluminum plate layer 1 and the copper plate layer 2 can be achieved, so that the aluminum plate layer 1 and the copper plate layer 2 are more firmly combined together.

[0026] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cold-rolled copper-aluminum composite plate strip, comprising an aluminum plate layer (1) and a copper plate layer (2), characterized in that: A glass fiber mesh layer (3) is bonded between the aluminum plate layer (1) and the copper plate layer (2) by glue, and the aluminum plate layer (1) is fixedly connected to the glass fiber mesh layer (3) and the copper plate layer (2) by cold rolling. A groove (6) is provided on the end faces of the aluminum plate layer (1) and the copper plate layer (2) that are away from each other. An aluminum frame (4) is provided at the outer ends of the aluminum plate layer (1) and the copper plate layer (2). Two convex strips (5) distributed up and down are fixedly connected to the inner wall of the aluminum frame (4), and the two convex strips (5) are respectively located in the two grooves (6).

2. The cold-rolled copper-aluminum composite strip according to claim 1, characterized in that: The two convex strips (5) are respectively fixedly connected to the two concave grooves (6) by cold rolling, and the two convex strips (5) and the two concave grooves (6) are placed in parallel.

3. The cold-rolled copper-aluminum composite strip according to claim 1, characterized in that: The end face shape of the aluminum frame (4) when viewed from the front is C-shaped, and the aluminum plate layer (1), the copper plate layer (2) and the glass fiber mesh layer (3) are all located inside the aluminum frame (4), and the aluminum frame (4) is fixed to the aluminum plate layer (1) and the copper plate layer (2) by cold rolling.

4. The cold-rolled copper-aluminum composite strip according to claim 1, characterized in that: The thickness of the aluminum plate layer (1) is 4.5 mm, the thickness of the copper plate layer (2) is 1.5 mm, and the thickness of the glass fiber mesh layer (3) is 0.5 mm.

5. The cold-rolled copper-aluminum composite strip according to claim 1, characterized in that: The height of the groove (6) is 0.5 mm, and the convex strip (5) is consistent with the groove (6).

6. The cold-rolled copper-aluminum composite strip according to claim 1, characterized in that: The number of meshes of the glass fiber mesh layer (3) is 100 meshes.

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