New energy battery module connection copper-aluminum composite soft bar

Abstract

The utility model belongs to the technical field of copper-aluminum composite soft bars, and particularly relates to a new energy battery module connection copper-aluminum composite soft bar which comprises a first copper-aluminum composite board, one end of the first copper-aluminum composite board is movably connected with a second copper-aluminum composite board, and the side face of the other end of the second copper-aluminum composite board is connected with a third copper-aluminum composite board. One end of the second copper-aluminum composite plate is fixedly connected with a third copper-aluminum composite plate, and the third copper-aluminum composite plate is connected with the second copper-aluminum composite plate in a clamping manner through an insertion plate; according to the copper-aluminum composite soft bar, when the length of the copper-aluminum composite soft bar is not enough, the first copper-aluminum composite plate and the second copper-aluminum composite plate are pulled towards the two ends respectively, so that the second copper-aluminum composite plate drives the insertion rod to move, and the length between the first copper-aluminum composite plate and the second copper-aluminum composite plate is increased; when the copper-aluminum composite soft bar is used, corresponding installation requirements can be met through adjustment in the mode when the butt joint length is insufficient, and therefore the application range of the copper-aluminum composite soft bar can be widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of copper-aluminum composite flexible busbars, and particularly relates to a copper-aluminum composite flexible busbar for connecting new energy battery modules. Background Technique

[0002] The copper-aluminum composite flexible busbar is usually composed of a main body soft aluminum busbar layer and a hard pure copper wrapping layer. The main body soft aluminum busbar layer is formed by welding multiple layers of aluminum foils, having a lower resistance and good electrical conductivity. The hard pure copper wrapping layer provides higher mechanical strength and good heat dissipation performance. In the specific design of battery modules, the position and shape of the copper-aluminum composite flexible busbar may vary according to the layout and connection requirements of the battery. It may connect the positive and negative electrodes of the battery, or be used to connect multiple battery cells to achieve series or parallel connection.

[0003] At present, most of the copper-aluminum composite flexible busbars for connecting new energy battery modules are manufactured by integral die-casting. In actual use, if there is a dimensional error, then all these copper-aluminum composite flexible busbars for connecting new energy battery modules will be unable to be used normally, resulting in huge economic and material losses. Therefore, it is necessary to improve it according to this defect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a copper-aluminum composite flexible busbar for connecting new energy battery modules, aiming to solve the problem that most of the copper-aluminum composite flexible busbars for connecting new energy battery modules are manufactured by integral die-casting. In actual use, if there is a dimensional error, then all these copper-aluminum composite flexible busbars for connecting new energy battery modules will be unable to be used normally, resulting in huge economic and material losses. Therefore, it is necessary to improve it according to this defect.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A copper-aluminum composite flexible busbar for connecting new energy battery modules, including a first copper-aluminum composite plate, one end of the first copper-aluminum composite plate is movably connected to a second copper-aluminum composite plate, the other end side of the second copper-aluminum composite plate is connected to a third copper-aluminum composite plate, one end of the second copper-aluminum composite plate is fixedly connected to the third copper-aluminum composite plate, and the third copper-aluminum composite plate is snap-connected with the second copper-aluminum composite plate through a plug board;

[0006] A plug rod is fixedly installed at one end of the second copper-aluminum composite plate, and the second copper-aluminum composite plate is in interference fit docking with the first copper-aluminum composite plate through the plug rod at one end.

[0007] In order to enable the first copper-aluminum composite plate and the second copper-aluminum composite plate to be movably connected, as a preferred embodiment of the copper-aluminum composite flexible busbar for connecting new energy battery modules of the utility model, two inner cavities are opened at one end of the first copper-aluminum composite plate, and bump points are fixedly installed on the upper inner walls of each inner cavity.

[0008] In order to fix the insertion rod inside the inner cavity, as an optimization of the copper-aluminum composite flexible busbar for connecting new energy battery modules of the present utility model, a group of notches are equidistantly arranged on the upper surface of the insertion rod, and the horizontal vertical length between the centers of adjacent two notches is the same as the horizontal vertical length between the centers of adjacent two convex points.

[0009] In order to enable the insertion rod to withdraw from the inner cavity when the insertion rod is pulled, as an optimization of the copper-aluminum composite flexible busbar for connecting new energy battery modules of the present utility model, the vertical length between the inner walls of the inner cavity is greater than the vertical length of the insertion rod, and the convex points are made of deformable hard rubber material.

[0010] In order to enable the insertion plate to be fixedly installed inside the card slot, as an optimization of the copper-aluminum composite flexible busbar for connecting new energy battery modules of the present utility model, a card slot is opened at one end of the second copper-aluminum composite plate, and two convex strips are fixedly installed equidistantly on one inner wall of the card slot. As an optimization of the copper-aluminum composite flexible busbar for connecting new energy battery modules of the present utility model, the size of the insertion plate is adapted to the internal size of the card slot, and the slot is inserted on the outer wall of the corresponding convex strip.

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

[0012] When the length of the copper-aluminum composite flexible busbar is insufficient, the first copper-aluminum composite plate and the second copper-aluminum composite plate are respectively pulled towards both ends at this time, so that the second copper-aluminum composite plate will drive the insertion rod to move. Thus, the length between the first copper-aluminum composite plate and the second copper-aluminum composite plate will increase. Furthermore, during use, when the butt joint length is insufficient, the corresponding installation requirements can be met through the adjustment in this way, thereby improving the applicable range of the copper-aluminum composite flexible busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a partial side view structural schematic diagram of the second copper-aluminum composite plate of the present utility model;

[0016] Figure 3 is a structural schematic diagram of the insertion plate of the present utility model;

[0017] Figure 4 is a partial cross-sectional structural schematic diagram of the first copper-aluminum composite plate of the present utility model;

[0018] Figure 5 Schematic diagram of the butt joint structure between the insertion rod of the present utility model and the second copper-aluminum composite plate.

[0019] In the figure: 1. First copper-aluminum composite plate; 101. Inner cavity; 102. Convex point; 2. Second copper-aluminum composite plate; 201. Card slot; 202. Convex strip; 203. Insertion rod; 204. Notch; 3. Third copper-aluminum composite plate; 301. Insertion plate; 302. Slot. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-5 , the present utility model provides the following technical solutions: A copper-aluminum composite flexible bus for connecting a new energy battery module, including a first copper-aluminum composite plate 1, one end of the first copper-aluminum composite plate 1 is movably connected to a second copper-aluminum composite plate 2, the other end side of the second copper-aluminum composite plate 2 is connected to a third copper-aluminum composite plate 3, one end of the second copper-aluminum composite plate 2 is fixedly connected to the third copper-aluminum composite plate 3, and the third copper-aluminum composite plate 3 is snap-connected to the second copper-aluminum composite plate 2 through an insertion plate 301. After the first copper-aluminum composite plate 1, the second copper-aluminum composite plate 2, and the third copper-aluminum composite plate 3 are assembled together, it is the copper-aluminum composite flexible bus in this technical solution. One end of the first copper-aluminum composite plate 1 and the third copper-aluminum composite plate 3 are respectively provided with a wiring terminal;

[0022] One end of the second copper-aluminum composite plate 2 is fixedly installed with an insertion rod 203, and one end of the second copper-aluminum composite plate 2 is press-fitted and butt-jointed with the first copper-aluminum composite plate 1 through the insertion rod 203.

[0023] Preferably: Two inner cavities 101 are opened at one end of the first copper-aluminum composite plate 1, and a convex point 102 is fixedly installed on the upper inner wall of each inner cavity 101. A group of notches 204 are equidistantly opened on the upper surface of the insertion rod 203, and the horizontal vertical length between the centers of adjacent two notches 204 is the same as the horizontal vertical length between the centers of adjacent two convex points 102. The longitudinal vertical length between the inner walls of the inner cavity 101 is greater than the longitudinal vertical length of the insertion rod 203, and the convex point 102 is made of deformable hard rubber material.

[0024] During specific use, the entire insertion rod 203 is made of a copper-aluminum composite plate. When the insertion rod 203 is installed inside the inner cavity 101, the convex point 102 will squeeze the insertion rod 203 downward at this time. In this way, the bottom of the insertion rod 203 will maintain an effective contact state with the inner wall of the inner cavity 101, and thus the first copper-aluminum composite plate 1 and the second copper-aluminum composite plate 2 can maintain an effective conduction function during use.

[0025] Preferably: One end of the second copper-aluminum composite plate 2 is provided with a card slot 201, and two convex strips 202 are fixedly installed at equal intervals on one inner wall of the card slot 201. The size of the insertion plate 301 is adapted to the internal size of the card slot 201, and the insertion slot 302 is inserted on the outer wall of the corresponding convex strip 202.

[0026] During specific use, the distance between the two convex strips 202 is adapted to the distance between the two insertion slots 302. After the insertion plate 301 is inserted into the card slot 201, the insertion slot 302 will also be docked with the convex strip 202 synchronously. Thus, when the third copper-aluminum composite plate 3 is horizontally stressed, it will not be separated from the second copper-aluminum composite plate 2.

[0027] Working principle: When the first copper-aluminum composite plate 1 and the second copper-aluminum composite plate 2 are insufficient in length during installation, at this time, pull the first copper-aluminum composite plate 1 and the second copper-aluminum composite plate 2. When the second copper-aluminum composite plate 2 is stressed, it will drive the insertion rod 203 to move from the inside of the inner cavity 101 to one side. As a result, the horizontal length between the first copper-aluminum composite plate 1 and the second copper-aluminum composite plate 2 will increase, so as to meet the installation requirements in this case;

[0028] When assembling the second copper-aluminum composite plate 2 and the third copper-aluminum composite plate 3, align the insertion plate 301 at one end of the third copper-aluminum composite plate 3 with the opening of the card slot 201 on the second copper-aluminum composite plate 2, and move the third copper-aluminum composite plate 3 downward. In this way, the insertion plate 301 can be installed inside the card slot 201, and thus the docking between the second copper-aluminum composite plate 2 and the third copper-aluminum composite plate 3 can be completed. During actual use, local damaged components can be replaced in this way, thereby reducing the material loss.

[0029] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A copper-aluminum composite flexible busbar for connecting a new energy battery module, comprising a first copper-aluminum composite plate (1), one end of the first copper-aluminum composite plate (1) is movably connected to a second copper-aluminum composite plate (2), and the side of the other end of the second copper-aluminum composite plate (2) is connected to a third copper-aluminum composite plate (3), characterized in that: One end of the second copper-aluminum composite plate (2) is fixedly connected to a third copper-aluminum composite plate (3), and the third copper-aluminum composite plate (3) is snap-connected to the second copper-aluminum composite plate (2) through a plug board (301); One end of the second copper-aluminum composite plate (2) is fixedly installed with a plug rod (203), and one end of the second copper-aluminum composite plate (2) is in interference fit and butt joint with the first copper-aluminum composite plate (1) through the plug rod (203).

2. The copper-aluminum composite flexible busbar for connecting a new energy battery module according to claim 1, wherein: Two inner cavities (101) are opened at one end of the first copper-aluminum composite plate (1), and bump points (102) are fixedly installed on the upper inner walls of each of the inner cavities (101).

3. The copper-aluminum composite flexible busbar for connecting a new energy battery module according to claim 1, characterized in that: A group of notches (204) are equidistantly opened on the upper surface of the plug rod (203), and the horizontal vertical length between the centers of adjacent two notches (204) is the same as the horizontal vertical length between the centers of adjacent two bump points (102).

4. A copper-aluminum composite flexible busbar for connecting a new energy battery module according to claim 2, characterized in that: The longitudinal vertical length between the inner walls of the inner cavity (101) is greater than the longitudinal vertical length of the plug rod (203), and the bump point (102) is made of deformable hard rubber material.

5. A copper-aluminum composite flexible busbar for connecting a new energy battery module according to claim 1, characterized in that: A card slot (201) is opened at one end of the second copper-aluminum composite plate (2), and two convex strips (202) are fixedly installed at equal intervals on one inner wall of the card slot (201).

6. The copper-aluminum composite flexible busbar for connecting a new energy battery module according to claim 1, wherein: The size of the plug board (301) is adapted to the internal size of the card slot (201), and the plug slot (302) is inserted on the outer wall of the corresponding convex strip (202).

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