Battery pole structure with simple structure and battery
By forming the pole column with the lower pole block in one piece and fixedly connecting it through the step surface and the bent ring sheet, the complex structure of the existing battery pole column is solved, and the effect of structural simplification, cost reduction and reliability improvement is achieved.
Patent Information
- Application Number
- CN202421114892.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing battery pole structure has complex structure problems, resulting in high manufacturing costs and low reliability.
The structure is adopted in which the electrode column and the lower electrode block are formed integrally. The electrode column passes through the battery case and the upper electrode block, and is fixedly connected through the step surface and the bent ring sheet, simplifying the design of the electrode column structure.
The design of the pole column structure is greatly simplified, manufacturing costs are reduced, the overflow capacity of the pole column is enhanced, the sub-parts are reduced, and product reliability and production efficiency are improved.
Smart Images
Figure CN222673255U_ABST
Abstract
Description
Technical Field
[0001] The utility model patent relates to the field of battery technology, and specifically, to a battery pole structure and a battery with a simple structure. Background Art
[0002] The battery top cover is an important component of the battery, which is sealed on the shell. The shell has battery cells inside. The battery top cover is provided with a battery pole structure for connecting with the battery cells and electrically connecting with external equipment.
[0003] In the prior art, the battery pole structure includes a lower pole block, an upper pole block and a pole body. The pole body is separately arranged from the upper pole block and the lower pole block, and the pole body is assembled with the upper pole block and the lower pole block respectively. This results in a complex structure of the battery pole structure, high manufacturing cost, and reduced reliability of the battery. Utility Model Content
[0004] The utility model aims to provide a battery pole structure with a simple structure, aiming to solve the problem of complex structure of the battery pole structure in the prior art.
[0005] The utility model is implemented in this way: a battery pole structure with a simple structure comprises an upper pole block and a lower pole block mounted on a battery shell, wherein the battery shell is located between the upper pole block and the lower pole block; the lower pole block has a pole column body, the pole column body is integrally formed with the lower pole block, the pole column body passes through the battery shell and the upper pole block, and is fixedly connected to the upper pole block.
[0006] Furthermore, the pole body is in the shape of an elliptical cylinder.
[0007] Furthermore, the upper pole block has a pole block groove, and the end of the pole column extends into the pole block groove and is fixedly connected to the upper pole block.
[0008] Furthermore, the outer periphery of the pole column has a step surface, and the step surface is arranged around the circumference of the pole column; the step surface is arranged toward the upper pole block, and the bottom of the upper pole block abuts against the step surface.
[0009] Furthermore, the battery shell has a through hole, the pole column passes through the through hole, and the inner side wall of the through hole abuts against the outer periphery of the pole column.
[0010] Furthermore, the upper end of the pole column is fixedly connected to the upper pole block by riveting.
[0011] Furthermore, the upper end of the pole column extends outward to form a bent ring sheet, which is arranged around the circumference of the pole column, and the bent ring sheet is pressed against the bottom of the pole block groove and fixedly connected to the upper pole block.
[0012] Furthermore, the outer periphery of the bent ring piece abuts against the inner side wall of the pole piece groove to form a fitting annular surface, and the fitting annular surface is arranged around the circumference of the bent ring piece, and the fitting annular surface is welded and fixed.
[0013] Furthermore, the upper end of the pole column has a column groove, and the bent ring sheet surrounds the outer circumference of the column groove.
[0014] Compared with the prior art, the utility model provides a battery pole structure with a simple structure, in which the pole body and the lower pole block are integrally formed, which greatly simplifies the structure of the pole structure, reduces the overall manufacturing cost, and can enhance the current carrying capacity of the pole body. Secondly, the sub-parts of the pole structure are reduced, which improves product reliability and production efficiency.
[0015] The utility model also provides a battery, comprising the above-mentioned battery pole structure with a simple structure.
[0016] Compared with the prior art, the battery provided by the utility model has a simple pole structure and reduced sub-components, which greatly simplifies the battery structure, improves the production efficiency of the battery, and improves the reliability of the battery. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a cross-sectional schematic diagram of a battery pole structure with a simple structure provided by the utility model;
[0018] Figure 2 It is a cross-sectional schematic diagram of a battery pole structure with a simple structure provided by the utility model;
[0019] Figure 3 This is a partial schematic diagram of the cooperation between the pole column and the upper pole block provided by the utility model;
[0020] In the figure: an upper pole block 100, a pole block groove 101; an upper plastic part 200; a battery shell 300; a lower plastic part 400; a lower pole block 500, a pole column 501, a pole column groove 502, a bent ring piece 503, a step surface 504; a sealing part 600; and a fitting ring surface 700. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0022] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0023] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0024] Reference Figure 1-3 As shown, it is a preferred embodiment provided by the utility model.
[0025] The battery pole structure with a simple structure includes an upper pole block 100 and a lower pole block 500 installed on a battery shell, the battery shell 300 is located between the upper pole block 100 and the lower pole block 500, and the battery shell 300 is clamped and fixed between the upper pole block 100 and the lower pole block 500. The lower pole block 500 has a pole column 501, the pole column 501 and the lower pole block 500 are integrally formed, and the pole column 501 is arranged in a raised column shape on the lower pole block 500. The pole column 501 passes through the battery shell 300 and the upper pole block 100, and is fixedly connected to the upper pole block 100. The upper pole block 100, the pole column and the lower pole block 500 are fixed to form an integrated structure.
[0026] The above-mentioned simple battery pole structure, in which the pole body 501 and the lower pole block 500 are integrally formed, greatly simplifies the structure of the pole structure, reduces the overall manufacturing cost, and can enhance the current carrying capacity of the pole body 501. Secondly, the sub-components of the pole structure are reduced, which improves product reliability and production efficiency.
[0027] Of course, the upper pole block 100 and the lower pole block 500 can also be set on the top cover sheet, not only limited to the battery shell 300, or the top cover sheet can also be considered as a part of the battery shell 300. Therefore, the battery shell 300 here can be a top cover sheet or a non-top cover sheet part.
[0028] In some embodiments, the pole body 501 is in the shape of an elliptical cylinder, that is, along the transverse section of the pole body 501, the cross-section of the pole body 501 is elliptical. Within a limited width range, the cross-sectional area of the pole body 501 can be increased, greatly enhancing the current carrying capacity of the pole body 501.
[0029] The upper pole block 100 has a pole block groove 101, and the end of the pole column 501 extends into the pole block groove 101 and is fixedly connected to the upper pole block 100. This facilitates the fixed connection between the end of the pole column 501 and the upper pole block 100, and the end of the pole column 501 is sunken into the interior of the pole groove and will not occupy too much space.
[0030] In some embodiments, the outer periphery of the pole column 501 has a step surface 504, and the step surface 504 is arranged around the circumference of the pole column 501; the step surface 504 is arranged toward the upper pole block 100, and the bottom of the upper pole block 100 abuts against the step surface 504. In this way, during the assembly process of the pole structure, after the pole column 501 passes through the battery shell 300 and the upper pole block 100, the step surface 504 is abutted against the bottom of the upper pole block 100 for axial positioning.
[0031] The battery shell 300 has a through hole, and the pole column 501 passes through the through hole. The inner wall of the through hole abuts against the outer periphery of the pole column 501, which can make the fit between the pole column 501 and the battery shell 300 more stable and position the polarity of the pole column 501 circumferentially.
[0032] In some embodiments, the upper end of the pole column 501 is riveted and fixed to the upper pole block 100. After the upper end of the pole column 501 passes through the battery shell 300 and the upper pole block 100, it is in a convex shape and is aligned and riveted by riveting equipment to make the upper end of the pole column 501 riveted and fixed to the upper pole block 100. The structure is simple and the fixed connection with the upper pole block 100 is firm.
[0033] In some embodiments, the upper end of the pole column 501 extends outward to form a bent ring piece 503, which is arranged around the circumference of the pole column 501. The bent ring piece 503 is pressed against the bottom of the pole block groove 101 and is fixedly connected to the upper pole block 100.
[0034] During the assembly process, the bent ring piece 503 on the pole body 501 is arranged coaxially with the pole body 501. After the bent ring piece 503 passes through the battery shell 300 and the upper pole block 100, it is adjacent to the pole groove. The bent ring piece 503 is bent outward relative to the pole body 501 using a bending device until the bent ring piece 503 is pressed against the bottom of the pole groove, thereby being fixedly connected to the upper pole block 100.
[0035] The bent ring piece 503 is pressed against the bottom of the pole groove, so that the pole body 501 has a downward limiting function, and the axial positioning of the entire pole structure is ensured by the opposite clamping of the lower pole block 500.
[0036] Furthermore, the outer periphery of the bent ring piece 503 abuts against the inner wall of the pole block groove 101 to form a fitting annular surface 700. The fitting annular surface 700 is arranged around the circumference of the bent ring piece 503 and is welded and fixed. In this way, a larger area between the pole column 501 and the upper pole block 100 is ensured to fit together, thereby enhancing the current conduction capability.
[0037] The upper end of the pole column 501 has a column groove 402, and the bent ring piece 503 surrounds the outer circumference of the column groove 402. In this way, during the assembly process, the bent ring piece 503 is conveniently bent outward relative to the pole column 501 so that the bent ring piece 503 presses against the bottom of the pole block groove 101.
[0038] In the battery top cover, an upper plastic part 200 is provided between the battery shell 300 and the upper pole block 100, a lower plastic part 400 is provided between the battery shell 300 and the lower pole block 500, and a sealing part 600 is provided between the lower plastic part 400 and the battery shell 300 and the pole column 501. In this way, the pole column 501 passes through the lower plastic part 400, the battery shell 300, the upper plastic part 200 and the upper pole block 100 in sequence, and is then fixedly connected to the upper pole block 100. The upper pole block 100 and the lower pole block 500 are clamped toward each other, and the upper plastic part 200, the battery shell 300 and the lower plastic part 400 are clamped firmly.
[0039] A limited anti-rotation structure is provided between the upper plastic part 200 and the battery shell 300, and between the lower plastic part 400 and the battery shell 300, respectively. The limited anti-rotation structure can limit the rotation of the battery pole structure and keep the position of the battery pole structure in the battery top cover stable.
[0040] This embodiment also provides a battery, which includes the above-mentioned simple battery pole structure. Compared with the prior art, the battery provided by the utility model has a simple pole structure and reduced sub-components, which greatly simplifies the battery structure, improves the battery production efficiency, and improves the battery reliability.
[0041] The above description is only a preferred embodiment of the present invention and is 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 battery pole structure with a simple structure, characterized in that: The invention comprises an upper pole block (100) and a lower pole block (500) mounted on a battery shell (300), wherein the battery shell (300) is located between the upper pole block (100) and the lower pole block (500); the lower pole block (500) has a pole column (501), the pole column (501) and the lower pole block (500) are integrally formed, and the pole column (501) passes through the battery shell (300) and the upper pole block (100) and is fixedly connected to the upper pole block (100).
2. The battery pole structure with a simple structure as claimed in claim 1, characterized in that: The pole body (501) is in the shape of an elliptical cylinder.
3. The battery pole structure with a simple structure as claimed in claim 1 or 2, characterized in that: The upper pole block (100) has a pole block groove (101), and the end of the pole column (501) extends into the pole block groove (101) and is fixedly connected to the upper pole block (100).
4. The battery pole structure with a simple structure as claimed in claim 1 or 2, characterized in that: The outer periphery of the pole column (501) has a step surface (504), and the step surface (504) is arranged around the circumference of the pole column (501); the step surface (504) is arranged toward the upper pole block (100), and the bottom of the upper pole block (100) abuts against the step surface (504).
5. The battery pole structure with a simple structure as claimed in claim 3, characterized in that: The battery shell (300) has a through hole, the pole column (501) passes through the through hole, and the inner side wall of the through hole abuts against the outer periphery of the pole column (501).
6. The battery pole structure with a simple structure as claimed in claim 5, characterized in that: The upper end of the pole column (501) is fixedly connected to the upper pole block (100) by riveting.
7. The battery pole structure with a simple structure as claimed in claim 5, characterized in that: The upper end of the pole column (501) extends outward to form a bent ring piece (503), and the bent ring piece (503) is arranged around the circumference of the pole column (501). The bent ring piece (503) is pressed against the bottom of the pole block groove (101) and is fixedly connected to the upper pole block (100).
8. The battery pole structure with a simple structure as claimed in claim 7, characterized in that: The outer periphery of the bent ring piece (503) abuts against the inner side wall of the pole piece groove (101) to form a fitting annular surface (700). The fitting annular surface (700) is arranged around the circumference of the bent ring piece (503) and is fixed by welding.
9. The battery pole structure with a simple structure as claimed in claim 7, characterized in that: The upper end of the pole column (501) is provided with a column groove, and the bent ring sheet (503) surrounds the outer circumference of the column groove.
10. A battery, characterized in that A battery pole structure with a simple structure comprising any one of claims 1 to 9.