Shell structure and collector plate structure

Abstract

The utility model belongs to the technical field of current collecting plates, in particular to a shell structure and a current collecting plate structure, which comprises an explosion-proof sheet, a protective diaphragm and a shell bottom, the shell is assembled with the shell, the inner wall of the bottom of the shell is fixedly connected with a sinking platform, the shell is of a single-pass structure, the middle of the shell is provided with a plane, the plane is lower than the sinking platform, the rear side of the plane is of a convex structure, and the convex structure is provided with a convex surface. The shell is of a single-pass structure, the thickness of the plane is larger than that of the plane, a through hole is formed in one side of the plane, a hole is formed in the top of the shell, a first platform, a second platform and a third platform are arranged at the bottom of the shell, a center hole is formed in the middle of the plane, and an oval hole is formed in one side of the shell and the sinking table. And meanwhile, the notches in the current collecting disc can avoid the anti-explosion piece and ensure that the exhaust holes are not blocked, connection between the current collecting disc and the shell can be ensured in various modes, and good practicability and convenience are achieved.

Description

Technical Field

[0001] This utility model relates to the field of manifold technology, and in particular to a shell structure and a manifold structure. Background Technology

[0002] Currently, most aluminum-cased cylindrical batteries have a double-through casing structure with positive and negative electrode covers on both sides. These covers have current collectors with extended handles, and explosion-proof plates are also mounted on them. This structure requires welding the covers twice, adding an extra step and increasing equipment costs. This invention proposes a single-through casing structure with an explosion-proof plate at the bottom of the casing to ensure battery safety. Since the single-through aluminum casing structure cannot use current collectors with extended handles, a new current collector structure is designed to match it, and several connection methods between the current collector and the casing are proposed. Therefore, we propose a casing structure and current collector structure to solve the aforementioned problems. Utility Model Content

[0003] Based on the technical problems existing in the background art, this application proposes a shell structure and a manifold structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A shell structure includes an explosion-proof plate, a protective diaphragm, a shell bottom, and shell-to-shell assembly. A recessed platform is fixedly connected to the inner wall of the bottom of the shell. The shell has a single-through structure. A flat surface is located in the middle of the shell, lower than the recessed platform. The rear side of the flat surface has a raised structure, and the thickness of the flat surface is greater than the flat surface. A through hole is located on one side of the flat surface. An auxiliary hole is located on the top of the shell. A first platform, a second platform, and a third platform are respectively located on the bottom of the shell. A central hole is located in the middle of the flat surface. An elliptical hole is located on one side of the shell and the recessed platform. Three elliptical platform surfaces of different sizes are located on the outer side of the shell bottom, and the elliptical platform surfaces are concentric with the elliptical hole. The explosion-proof plate is located on the smallest elliptical platform surface, and the protective diaphragm is located on the largest elliptical platform surface. The elliptical hole and one side of the shell have the same elliptical platform. One side of the elliptical platform located on one side of the elliptical hole and the shell has a chamfer. The explosion-proof plate and the shell are both made of metal, and the protective diaphragm is made of transparent polypropylene with adhesive on one side of its outer edge.

[0006] A collector plate structure includes a collector plate, one side of which has a through hole slightly larger than the plane, and grooves on both sides of the through hole. Two V-shaped notches are provided between the two grooves, and a small V-shaped notch is provided on one side of the groove. A first notch is provided on the outer wall of the collector plate.

[0007] In this utility model, the shell adopts a single-pass structure and an explosion-proof plate is set at the bottom of the shell to protect safety. At the same time, the notch on the collector plate can avoid the explosion-proof plate and ensure that the exhaust hole is not blocked. Multiple methods can be used to ensure the connection between the collector plate and the shell, which has good practicality and convenience. Attached Figure Description

[0008] Figure 1 This is the front view of the present invention;

[0009] Figure 2 Appendix of this utility model Figure 1 A schematic diagram of the structure of part A;

[0010] Figure 3 Appendix of this utility model Figure 1 A structural diagram of section B;

[0011] Figure 4 This is a partial structural schematic diagram of the present invention.

[0012] In the diagram: 100, manifold; 110, first notch; 120, groove; 130, center hole; 140, second notch; 200, housing assembly; 210, housing; 220, protective diaphragm; 230, explosion-proof plate; 211, countersunk platform; 212, plane; 213, bottom of the housing; 214, auxiliary hole; 215, first platform; 216, second platform; 217, third platform; 218, elliptical hole; 219, chamfer. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0014] Reference Figures 1-4A shell structure and a manifold structure are disclosed, including an explosion-proof sheet 230, a protective diaphragm 220, a shell bottom 213, a shell 210, and a shell assembly 200. A recessed platform 211 is fixedly connected to the inner wall of the bottom of the shell 210. The shell 210 has a single-through structure. A plane 212 is provided in the middle of the shell 210, and the plane 212 is lower than the recessed platform 211. The rear side of the plane 212 is a protruding structure, and the thickness of the plane 212 is greater than that of the plane 212. A through hole is provided on one side of the plane 212. An auxiliary hole 214 is provided on the top of the shell 210. A first platform 215, a second platform 216, and a third platform 217 are respectively provided on the bottom of the shell 210. A through hole is provided in the middle of the plane 212. The central hole 130, the shell 210 and the recessed platform 211 are provided with an elliptical hole 218 on one side, the shell bottom 213 is provided with three elliptical platform surfaces of different sizes on the outside, and the elliptical platform surfaces are concentric with the elliptical hole 218. The explosion-proof sheet 230 is provided on the smallest elliptical platform surface, and the protective film 220 is provided on the largest elliptical platform surface. The elliptical hole 218 and the shell 210 are provided with the same elliptical platform on one side. The elliptical platform located on the side of the elliptical hole 218 and the shell 210 is provided with a chamfer 219 on one side. The explosion-proof sheet 230 and the shell 210 are both made of metal materials. The protective film 220 is made of transparent polypropylene material, and the outer edge of one side is coated with adhesive.

[0015] A collector plate structure includes a collector plate 100. A through hole is provided on one side of the collector plate 100. The size of the through hole is slightly larger than the plane 212. Grooves 120 are provided on both the left and right sides of the through hole. Two V-shaped notches are provided between the two grooves 120. A small V-shaped notch is provided on one side of the groove 120. A first notch 110 is provided on the outer wall of the collector plate 100.

[0016] The working principle of this utility model is as follows: In actual use, taking an aluminum-cased battery as an example, the casing 210 is made of aluminum alloy material, grade 3003; the current collector 100 is a positive current collector, made of pure aluminum, grade 1060; the connection method adopts laser penetration welding.

[0017] 1. When the shell 210 arrived, the explosion-proof sheet 230 had already been welded on;

[0018] 2. Weld the flattened core to the positive current collector 100;

[0019] 3. Core inserted into shell;

[0020] 4. Laser penetration welding is used to connect the manifold 100 and the housing 210;

[0021] 5. Other processes such as capping and liquid injection;

[0022] In use, the central hole 130 serves as an injection port. The chamfer 219 facilitates venting. The explosion-proof plate 230 is mounted on the third platform 217 and connected to the housing 210 by laser welding to ensure sealing performance. The protective diaphragm 220 is mounted on the first platform 215 and is adhered to the first platform 215 with adhesive on one side. The protective diaphragm 220 protects the explosion-proof plate 230. The first notch 110 is mainly for weight reduction, and the second notch 140 is mainly to avoid interference with the elliptical hole 218, while also reducing the weight of the manifold 100. The central hole 130 is mainly to avoid the back protrusion of the plane 212, ensuring good contact between the bottom surface 213 of the housing and the surface of the manifold 100. The connection method between the manifold 100 and the housing 210 is as follows:

[0023] 1. Upon arrival of the material, the protective diaphragm 220 and the explosion-proof sheet 230 are already assembled on the housing 210, forming an assembly;

[0024] 2. After the collector plate 100 is welded to the core, it is then assembled with the housing 210;

[0025] 3. The bottom of the shell 213 is in contact with the surface of the manifold 100. The connection can be made by laser penetration, ultrasonic welding, or conductive adhesive.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A housing structure characterized by, The assembly includes an explosion-proof sheet (230), a protective diaphragm (220), a shell bottom (213), a shell (210), and a shell assembly (200). A recessed platform (211) is fixedly connected to the inner wall of the bottom of the shell (210). The shell (210) has a single-pass structure. A plane (212) is provided in the middle of the shell (210), and the plane (212) is lower than the recessed platform (211). The rear side of the plane (212) is a protruding structure, and the thickness of the plane (212) is greater than that of the plane (212). A through hole is provided on one side of the plane (212). An auxiliary hole (214) is provided on the top of the shell (210). A first platform (215), a second platform (216), and a third platform (217) are respectively provided on the bottom of the shell (210). A central hole (130) is provided in the middle of the plane (212). 10) An elliptical hole (218) is provided on one side of the sinking platform (211). Three elliptical platform surfaces of different sizes are provided on the outer side of the shell bottom (213), and the elliptical platform surfaces are concentric with the elliptical hole (218). The explosion-proof sheet (230) is set on the smallest elliptical platform surface, and the protective film (220) is set on the largest elliptical platform surface. The elliptical hole (218) and the shell (210) are provided with the same elliptical platform on one side. The elliptical platform located on one side of the elliptical hole (218) and the shell (210) is provided with a chamfer (219). The explosion-proof sheet (230) and the shell (210) are both made of metal materials. The protective film (220) is made of transparent polypropylene material. Adhesive is prepared on the outer edge of one side. The outer wall of the shell (210) is provided with a second notch (140).

2. A current collector plate structure, characterized by, Includes a collector plate (100), one side of which is provided with a through hole, the size of which is slightly larger than the plane (212), and grooves (120) are provided on both the left and right sides of the through hole. Two V-shaped notches are provided between the two grooves (120), and a small V-shaped notch is provided on one side of the groove (120). A first notch (110) is provided on the outer wall of the collector plate (100).

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