Series aluminum bar assembly and power battery

Abstract

The utility model provides a series aluminum row assembly and a power battery, the series aluminum row assembly comprises a first series aluminum row and a second series aluminum row, the second series aluminum row is provided with a connecting part, the connecting part is stacked on the first series aluminum row along the up-down direction, and the connecting part is movably connected to the first series aluminum row and moves along the left-right direction; the second series aluminum row can move relative to the first series aluminum row, so that the position of the second series aluminum row relative to the first series aluminum row is conveniently adjusted, and the second series aluminum row is conveniently adapted to the distance between the first battery cell and the second battery cell by moving so as to be compatible with various distances; the problem that the position of the second series aluminum bar cannot be adjusted relative to the first series aluminum bar is avoided, and the applicability of the series aluminum bar assembly is improved, so that the sizes of different series aluminum bar assemblies required by different projects do not need to modify a mold or re-open the mold, the mold repairing or mold opening work is omitted, the cost is reduced, the time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of series-connected aluminum bar assemblies, in particular to a series-connected aluminum bar assembly and a power battery. Background Art

[0002] With the development of science and technology, power batteries are the power sources that provide power for tools. They mostly refer to storage batteries that provide power for electric vehicles, electric trains, electric bicycles, and golf carts. The series-connected aluminum bar assembly is part of the power battery.

[0003] In the prior art, the existing series aluminum bar assembly has only one series aluminum bar, and the two ends of the series aluminum bar are respectively welded to the positive electrode of the first battery cell and the negative electrode of the second battery cell. At this time, the series aluminum bar has a single distance and is adapted to a single model of battery cells or power batteries, resulting in low applicability of the existing series aluminum bar assembly. Utility Model Content

[0004] The utility model aims to provide a series aluminum bar assembly and a power battery, wherein the first series aluminum bar is used to be welded to the positive electrode of the first battery cell; the first series aluminum bar is in a flat plate shape; the second series aluminum bar is used to be welded to the negative electrode of the second battery cell; the second series aluminum bar is arranged on one side of the first series aluminum bar; the second series aluminum bar contacts the first series aluminum bar and is mutually conductive to realize the electrical connection between the first battery cell and the second battery cell; wherein the second series aluminum bar is provided with a connecting portion, the connecting portion is stacked on the first series aluminum bar in the up-down direction, the connecting portion is movably connected to the first series aluminum bar, and moves along the left-right direction, so that the second series aluminum bar can move relative to the first series aluminum bar, so as to adjust the position of the second series aluminum bar relative to the first series aluminum bar, so as to facilitate the second series aluminum bar to adapt to the distance between the first battery cell and the second battery cell by moving, so as to be compatible with a variety of distances, avoid the second series aluminum bar relative to the first series aluminum bar can not be adjusted position, improve the applicability of the series aluminum bar assembly, therefore, different projects require different series aluminum bar assembly sizes without modifying the mold or re-opening the mold, eliminating the mold repair or mold opening work, reducing costs, saving time, and improving work efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A series-connected aluminum bar assembly is applied to a power battery, and the series-connected aluminum bar assembly comprises:

[0007] A first series-connected aluminum bar is used for welding to the positive electrode of the first battery cell; the first series-connected aluminum bar is in the shape of a flat plate;

[0008] A second series aluminum bar is used for welding to the negative electrode of the second battery cell; the second series aluminum bar is arranged on one side of the first series aluminum bar; the second series aluminum bar is in contact with the first series aluminum bar and is electrically conductive to each other; wherein the second series aluminum bar is provided with a connecting portion, the connecting portion is stacked on the first series aluminum bar in the up and down direction, the connecting portion is movably connected to the first series aluminum bar, and moves in the left and right direction, so that the second series aluminum bar can move relative to the first series aluminum bar.

[0009] Optionally, the connecting portion is provided with a second elongated hole; the second elongated hole extends along the length direction of the second series aluminum;

[0010] The series-connected aluminum bar assembly further includes a connecting member, and the connecting member is located between the second series-connected aluminum bar and the first series-connected aluminum bar;

[0011] The second long hole is passed through the connecting member, and the connecting member connects the connecting portion and the first series-connected aluminum bar, so that the second series-connected aluminum bar and the first series-connected aluminum bar are connected.

[0012] Optionally, the first series aluminum bar is provided with a first elongated hole, and the first elongated hole is connected with the second elongated hole in the up-down direction and partially overlaps with the left-right direction.

[0013] Optionally, the connecting member passes through the first elongated hole and the second elongated hole, and connects the first series-connected aluminum bar and the second series-connected aluminum bar.

[0014] Optionally, the connecting member includes a connecting body, a first end and a second end; the connecting body is penetrated by the first elongated hole and the second elongated hole; the first end and the second end are respectively arranged at two ends of the connecting body, and contact the upper side wall of the connecting part and the lower side wall of the first series aluminum row along the up and down directions.

[0015] Optionally, the first series aluminum bar is provided with a groove, the groove is connected to the first elongated hole and accommodates the second end, and the surface of the second end does not exceed the groove.

[0016] Optionally, the connecting member is a conductive member.

[0017] Optionally, the second series aluminum bar further includes an aluminum bar body, and the aluminum bar body is disposed on one side of the connecting portion and connected to the connecting portion.

[0018] Optionally, a deformation portion is provided between the aluminum bar body and the connecting portion, and two ends of the deformation portion are respectively connected to the aluminum bar body and the connecting portion.

[0019] A power battery comprises the series-connected aluminum bar assembly, a first battery cell and a second battery cell; the series-connected aluminum bar assembly connects the first battery cell and the second battery cell.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model provides a series aluminum bar assembly and a power battery, wherein a first series aluminum bar is used for welding to a positive electrode of a first battery cell; the first series aluminum bar is in a flat plate shape; a second series aluminum bar is used for welding to a negative electrode of a second battery cell; the second series aluminum bar is arranged on one side of the first series aluminum bar; the second series aluminum bar contacts the first series aluminum bar and is mutually conductive to realize electrical connection between the first battery cell and the second battery cell; wherein the second series aluminum bar is provided with a connecting portion, the connecting portion is stacked on the first series aluminum bar in an up-down direction, the connecting portion is movably connected to the first series aluminum bar, and moves along a left-right direction, so that the second series aluminum bar can move relative to the first series aluminum bar, so as to adjust the position of the second series aluminum bar relative to the first series aluminum bar, so as to facilitate the second series aluminum bar to adapt to the distance between the first battery cell and the second battery cell by moving, so as to be compatible with a variety of distances, avoid the second series aluminum bar relative to the first series aluminum bar can not be adjusted in position, improve the applicability of the series aluminum bar assembly, therefore, different projects require different series aluminum bar assembly sizes without modifying the mold or re-opening the mold, eliminating the mold repair or mold opening work, reducing costs, saving time, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution in the embodiment of the present application, the following description will be made in conjunction with the accompanying drawings. In the following description, the same figure numbers represent the same parts.

[0023] Figure 1 A schematic diagram of a series-connected aluminum bar assembly according to an embodiment of the present application is shown.

[0024] Figure 2 A front view of a series-connected aluminum bar assembly according to an embodiment of the present application is shown.

[0025] Figure 3 A schematic diagram of a first series-connected aluminum bar of a series-connected aluminum bar assembly according to an embodiment of the present application is shown.

[0026] Figure 4 A schematic diagram of a second series-connected aluminum bar of a series-connected aluminum bar assembly according to an embodiment of the present application is shown.

[0027] Figure 5 A schematic diagram of a connecting piece of a series-connected aluminum bar assembly according to an embodiment of the present application is shown.

[0028] Reference numerals

[0029] 100. Series aluminum bar assembly;

[0030] 10. first series aluminum bar; 10a. first long hole; 10b. groove;

[0031] 20. Second series aluminum bar; 21. Connecting part; 21a. Second long hole; 22. Aluminum bar body; 221. Deformation part;

[0032] 30. Connecting piece; 31. Connecting body; 32. First end; 33. Second end. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] Please refer to the attached Figures 1 to 5 An embodiment of the present application provides a series-connected aluminum bar assembly 100 , which is applied to a power battery. The series-connected aluminum bar assembly 100 includes a first series-connected aluminum bar 10 and a second series-connected aluminum bar 20 , and the second series-connected aluminum bar 20 is disposed on the left side of the first series-connected aluminum bar 10 .

[0035] In the embodiment of the present application, the first series aluminum bar 10 is used to be welded to the positive electrode of the first battery cell; the first series aluminum bar 10 is flat, so that the positive electrode of the first battery cell can be fixed to the first series aluminum bar 10, thereby facilitating the power supply between the positive electrode of the first battery cell and the first series aluminum bar 10.

[0036] In the embodiment of the present application, the second series aluminum bar 20 is used to be welded to the negative electrode of the second battery cell, so that the positive electrode of the second battery cell is fixed to the second series aluminum bar 20, thereby facilitating the positive electrode of the second battery cell and the second series aluminum bar 20 to be energized; the second series aluminum bar 20 is arranged on the left side of the first series aluminum bar 10; the second series aluminum bar 20 is in contact with the first series aluminum bar 10, and is electrically conductive to each other, so as to realize electrical connection between the first battery cell and the second battery cell.

[0037] Among them, the second series aluminum bar 20 is provided with a connecting part 21, and the connecting part 21 is stacked on the first series aluminum bar 10 in the up and down direction. The connecting part 21 is movably connected to the first series aluminum bar 10 and moves along the left and right direction, so that the second series aluminum bar 20 can move relative to the first series aluminum bar 10, so as to adjust the position of the second series aluminum bar 20 relative to the first series aluminum bar 10, so that the second series aluminum bar 20 can adapt to the distance between the first battery cell and the second battery cell by moving, so as to be compatible with a variety of distances, avoid the second series aluminum bar 20 relative to the first series aluminum bar 10 The inability to adjust the position is improved, and the applicability of the series aluminum bar assembly 100 is improved. Therefore, the sizes of different series aluminum bar assemblies 100 required for different projects do not need to modify the mold or re-open the mold, eliminating the need for mold repair or mold opening work, reducing costs, saving time, and improving work efficiency.

[0038] The connecting portion 21 is provided with a second elongated hole 21a; the second elongated hole 21a extends along the length direction of the second series aluminum; the series aluminum bar assembly 100 also includes a connecting member 30, which is located between the second series aluminum bar 20 and the first series aluminum bar 10; the connecting member 30 is penetrated by the second elongated hole 21a, so that the connecting member 30 can pass through the second elongated hole 21a to the first series aluminum bar 10, and the connecting member 30 connects the connecting portion 21 and the first series aluminum bar 10, so that the second series aluminum bar 20 and the first series aluminum bar 10 are connected, so that the second series aluminum bar 20 is fixed to the first series aluminum bar 10.

[0039] The first series aluminum bar 10 is provided with a first long hole 10a, and the first long hole 10a is connected with the second long hole 21a in the up-down direction and partially overlaps with the left-right direction, so as to facilitate the first series aluminum bar 10 and the second series aluminum to move through the space of the first long hole 10a and the space of the second long hole 21a. The more the first long hole 10a and the second long hole 21a overlap, the shorter the distance between the first series aluminum bar 10 and the second series aluminum bar 20 is, and the less the first long hole 10a and the second long hole 21a overlap, the longer the distance between the first series aluminum bar 10 and the second series aluminum bar 20 is.

[0040] The connecting piece 30 passes through the first long hole 10a and the second long hole 21a, and connects the first series aluminum bar 10 and the second series aluminum bar 20, so that the first series aluminum bar 10 and the second series aluminum bar 20 are connected through the connecting piece 30, thereby facilitating the second series aluminum bar 20 to be fixed to the first series aluminum bar 10.

[0041] The connecting member 30 includes a connecting body 31, a first end 32 and a second end 33; the connecting body 31 is penetrated by a first long hole 10a and a second long hole 21a; the first end 32 and the second end 33 are respectively arranged at the two ends of the connecting body 31, and contact the upper side wall of the connecting part 21 and the lower side wall of the first series aluminum bar 10 in the up and down directions, so that the first end 32 and the second end 33 respectively abut the upper side wall of the connecting part 21 and the lower side wall of the first series aluminum bar 10, thereby facilitating the contact between the lower side wall of the connecting part 21 and the upper side wall of the first series aluminum bar 10, so as to realize the connection between the connecting part 21 and the first series aluminum bar 10. Optionally, the connecting member 30 is a conductive member.

[0042] The first series aluminum bar 10 is provided with a groove 10b, which is recessed from bottom to top by the first series aluminum bar 10, with the notch of the groove 10b facing downward. The groove 10b is connected to the first long hole 10a and accommodates the second end 33. The surface of the second end 33 does not exceed the groove 10b, so that the surface of the second end 33 does not exceed the lower surface of the first series aluminum bar 10, thereby avoiding the second end 33 protruding from the lower surface of the first series aluminum bar 10, and ensuring the stability of the lower surface of the first series aluminum bar 10.

[0043] The second series aluminum bar 20 also includes an aluminum bar body 22, which is arranged on one side of the connecting portion 21 and connected to the connecting portion 21 so that the aluminum bar body 22 is fixed to the connecting portion 21. The aluminum bar body 22 is used to be welded to the positive electrode of the first battery cell so that the positive electrode of the first battery cell is fixed to the aluminum bar body 22, thereby facilitating the positive electrode of the first battery cell and the aluminum bar body 22 to be energized.

[0044] A deformation portion 221 is provided between the aluminum bar body 22 and the connecting portion 21. The deformation portion 221 is located between the aluminum bar body 22 and the connecting portion 21. Two ends of the deformation portion 221 are respectively connected to the aluminum bar body 22 and the connecting portion 21, so that the aluminum bar body 22 can be connected to the connecting portion 21 through the deformation portion 221, so that the lower surface of the aluminum bar body 22 is parallel to the lower surface of the first series aluminum bar 10, thereby ensuring the stability of the series aluminum bar assembly 100. Optionally, the deformation portion 221 is wavy.

[0045] In another embodiment, a power battery includes a series aluminum bar assembly 100, a first battery cell, and a second battery cell; the series aluminum bar assembly 100 connects the first battery cell and the second battery cell, so that the first battery cell can be connected to the second battery cell through the series aluminum bar assembly 100, thereby facilitating the series aluminum bar assembly 100 to adapt to the distance between the first battery cell and the second battery cell by moving, so as to be compatible with multiple distances.

[0046] Compared with the prior art, the beneficial effects of the utility model are:

[0047] The utility model provides a series aluminum bar assembly 100 and a power battery, wherein the first series aluminum bar 10 is used to be welded to the positive electrode of the first battery cell; the first series aluminum bar 10 is in a flat plate shape; the second series aluminum bar 20 is used to be welded to the negative electrode of the second battery cell; the second series aluminum bar 20 is arranged on one side of the first series aluminum bar 10; the second series aluminum bar 20 is in contact with the first series aluminum bar 10 and is mutually conductive to realize electrical connection between the first battery cell and the second battery cell, wherein the second series aluminum bar 20 is provided with a connecting portion 21, the connecting portion 21 is stacked on the first series aluminum bar 10 in the up-down direction, the connecting portion 21 is movably connected to the first series aluminum bar 10, and is moved along the left-right direction. The second series aluminum bar 20 can move relative to the first series aluminum bar 10, so as to adjust the position of the second series aluminum bar 20 relative to the first series aluminum bar 10, so that the second series aluminum bar 20 can adapt to the distance between the first battery cell and the second battery cell by moving, so as to be compatible with a variety of distances, thereby avoiding the second series aluminum bar 20 relative to the first series aluminum bar 10. Can not adjust the position, improve the applicability of the series aluminum bar assembly 100, therefore, different projects require different sizes of series aluminum bar assemblies 100 without modifying the mold or re-opening the mold, eliminating the need for mold repair or mold opening work, reducing costs, saving time, and improving work efficiency.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A series aluminum bar assembly, characterized in that: Applied to power batteries, the series aluminum bar assembly includes: A first series-connected aluminum bar is used for welding to the positive electrode of the first battery cell; the first series-connected aluminum bar is in the shape of a flat plate; A second series aluminum bar is used for welding to the negative electrode of the second battery cell; the second series aluminum bar is arranged on one side of the first series aluminum bar; the second series aluminum bar is in contact with the first series aluminum bar and is electrically conductive to each other; wherein the second series aluminum bar is provided with a connecting portion, the connecting portion is stacked on the first series aluminum bar in the up and down direction, the connecting portion is movably connected to the first series aluminum bar, and moves in the left and right direction, so that the second series aluminum bar can move relative to the first series aluminum bar.

2. The series aluminum bar assembly according to claim 1, characterized in that: The connecting portion is provided with a second long strip hole; the second long strip hole extends along the length direction of the second series aluminum; The series-connected aluminum bar assembly further includes a connecting member, and the connecting member is located between the second series-connected aluminum bar and the first series-connected aluminum bar; The second long hole is passed through the connecting member, and the connecting member connects the connecting portion and the first series-connected aluminum bar, so that the second series-connected aluminum bar and the first series-connected aluminum bar are connected.

3. The series aluminum bar assembly according to claim 2, characterized in that: The first series aluminum bar is provided with a first elongated hole, and the first elongated hole is connected with the second elongated hole in the up-down direction and partially overlaps with the left-right direction.

4. The series aluminum bar assembly according to claim 3, characterized in that: The connecting member passes through the first long hole and the second long hole, and connects the first series-connected aluminum bar and the second series-connected aluminum bar.

5. The series aluminum bar assembly according to claim 4, characterized in that: The connecting member includes a connecting body, a first end and a second end; the connecting body is penetrated by the first long hole and the second long hole; the first end and the second end are respectively arranged at two ends of the connecting body, and contact the upper side wall of the connecting part and the lower side wall of the first series aluminum row along the up and down directions.

6. The series aluminum bar assembly according to claim 5, characterized in that: The first series aluminum bar is provided with a groove, the groove is connected to the first elongated hole and accommodates the second end, and the surface of the second end does not exceed the groove.

7. The series aluminum bar assembly according to claim 5, characterized in that: The connecting member is a conductive member.

8. The series aluminum bar assembly according to claim 1, characterized in that: The second series-connected aluminum bar further includes an aluminum bar main body, which is disposed on one side of the connecting portion and connected to the connecting portion.

9. The series aluminum bar assembly according to claim 8, characterized in that: A deformation portion is provided between the aluminum bar body and the connection portion, and two ends of the deformation portion are respectively connected to the aluminum bar body and the connection portion.

10. A power battery, characterized in that: It comprises a series-connected aluminum bar assembly as described in any one of claims 1 to 9, a first battery cell and a second battery cell; the series-connected aluminum bar assembly connects the first battery cell and the second battery cell.

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