A C-type alkaline manganese battery sealing ring structure

Abstract

This utility model discloses a sealing ring structure for a C-type alkaline manganese battery, including a central column, an outer wall, a connecting part, a safety valve, and a bottom surface. The central column is located in the middle of the sealing ring and has a through hole in the center. The safety valve is located in a 90° "fan-shaped" area on the bottom surface, at the connection between the connecting part and the bottom surface. The outer wall is the outermost part of the sealing ring, and reinforcing ribs are also provided around the central column. The sealing ring structure of this utility model can ensure that the C-type alkaline zinc-manganese battery will not experience leakage or ejection of solid particles under conditions of reverse short circuit misuse due to abnormal strength of the sealing ring safety valve within 5 years. At the same time, it further reduces the product cost and material usage of the sealing ring by 20-30%.

Description

Technical Field

[0001] This utility model relates to the field of alkaline zinc-manganese battery production technology, and in particular to a C-type alkaline manganese battery sealing ring structure. Background Technology

[0002] The negative electrode of an alkaline manganese battery is a paste-like substance made by mixing and stirring a KOH solution as the electrolyte and zinc powder particles as the active material. The positive electrode is a ring-shaped material made from highly active electrolytic manganese dioxide using a pressing process with the addition of other additives. The positive and negative electrodes are separated by a separator to prevent internal short circuits. The battery is housed in a steel casing, with the sealing body being the negative electrode's conductive system. In cases of battery misuse, such as reverse connection where one battery is charged by another, the internal gas volume will increase rapidly. Because alkaline manganese batteries are closed systems, once the internal pressure reaches a certain level, the pressure relief valve in the sealing ring will rupture and open to release pressure, causing the internal alkaline liquid to spray out along with the gas. Otherwise, there is a risk of explosion. Improperly designed safety valve structures can result in the ejection of solid particles from the negative electrode, or even separation of the sealing body from the steel casing, generally referred to as an "explosion." Utility Model Content

[0003] The purpose of this invention is to design a C-type sealing ring structure for alkaline manganese batteries to solve the aforementioned problems. Starting with the design of the battery sealing ring structure, the sealing structure is optimized to effectively prevent the ejection of solid particles from the negative electrode, thereby improving the safety and reliability of alkaline manganese batteries. Furthermore, the optimized structure reduces material usage and lowers production costs. In addition, the use of novel materials significantly improves the battery's leakage resistance and extends the recommended service life of alkaline manganese batteries.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] This utility model provides a C-type alkaline manganese battery sealing ring structure, including a central column, an outer wall, a connecting part, a safety valve, and a bottom surface. The central column is located in the middle of the sealing ring and has a through hole in the middle. The safety valve is located in a 90° "fan-shaped" area on the bottom surface and is located at the connection between the connecting part and the bottom surface. The outer wall is on the outermost side of the sealing ring.

[0006] As a preferred embodiment of this invention, the shape of the safety valve is changed from a "ring" structure to a "fan" structure. By changing the structure of the safety valve, the problem of excessive gap when the safety valve is opened is reduced, thus preventing solid particles inside the battery from being ejected from the gap.

[0007] As a preferred embodiment of this invention, the width of the safety valve is reduced from 0.35~0.45mm to 0.2~0.25mm. By reducing the width of the safety valve, the gap in the safety valve opening under the condition of battery misuse is reduced, thus preventing "negative electrode solid particles from being ejected".

[0008] As a preferred embodiment of this invention, 4-6 reinforcing ribs are added around the central column to increase the clamping effect of the central column, prevent alkali leakage from the central hole of the sealing ring and prevent the central column from breaking during assembly, thereby improving the leakage resistance.

[0009] As a preferred embodiment of this invention, the sealing ring material is changed from modified nylon 2710 to nylon 612. The new material has a lower saturated water absorption rate under high temperature and high humidity conditions, and better high temperature resistance and hydrolysis resistance, thereby improving the battery's leakage resistance.

[0010] As a preferred embodiment of this invention, the outer diameter of the central column is reduced from 7.4~7.6mm to 5.0~5.2mm. By reducing the size of the central column of the sealing ring, the internal air chamber space of the battery is increased, thereby further improving the battery's resistance to leakage, while reducing the amount of material used by 6~8% and lowering production costs.

[0011] As a preferred embodiment of this utility model, the outer wall thickness is reduced from 0.8~0.85mm to 0.6~0.65mm. By reducing the wall thickness, the amount of material used is reduced by 15~20%, thereby reducing production costs.

[0012] The beneficial effects of this invention are as follows: Testing shows that the sealing ring structure of this invention can ensure that C-type alkaline zinc-manganese batteries will not experience leakage or ejection of solid particles under conditions of reverse short-circuiting misuse due to abnormal strength of the sealing ring safety valve within 5 years. Simultaneously, it further reduces the cost of the sealing ring product and the amount of material used by 20-30%. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a sealing ring structure in the prior art.

[0014] Figure 2 This is a top view of the structure of this utility model.

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 4 This is a partially enlarged cross-sectional view of the present invention.

[0017] In the diagram: 1-Central column, 2-Safety valve, 3-Reinforcing rib, 4-Outer wall, 5-Connecting part, 6-Bottom surface. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] As attached Figure 1-4As shown, this embodiment provides a C-type alkaline manganese battery sealing ring structure, including a central post 1, an outer wall 4, a connecting part 5, a safety valve 2, and a bottom surface 6. The central post 1 is located in the middle of the sealing ring and has a through hole in the middle. The safety valve 2 is located in the 90° "fan-shaped" area of ​​the bottom surface 6 and is located at the connection between the connecting part 5 and the bottom surface 6. The outer wall 4 is on the outermost side of the sealing ring.

[0026] As a preferred embodiment of this utility model, the safety valve 2 is shaped like a "ring" structure (e.g., Figure 1 As shown) becomes a "fan-shaped" structure (such as Figure 2 As shown in the figure, by changing the structure of safety valve 2, the problem of excessive gap when safety valve 2 is opened is reduced, thus preventing solid particles inside the battery from being ejected from the gap.

[0027] As a preferred embodiment of this utility model, the width of the safety valve 2 is reduced from 0.35~0.45mm to 0.2~0.25mm. By reducing the width of the safety valve 2, the gap in the safety valve 2 that is opened under the condition of battery misuse is reduced, thus avoiding "the ejection of negative electrode solid particles".

[0028] As a preferred embodiment of this utility model, 4 to 6 reinforcing ribs 3 are added around the central column 1 to increase the clamping effect of the central column 1, prevent alkali leakage from the sealing ring hole and prevent the central column 1 from breaking during assembly, thereby improving the leakage resistance.

[0029] As a preferred embodiment of this utility model, the sealing ring material is changed from modified nylon 2710 to nylon 612. Nylon 612 has a lower saturated water absorption rate under high temperature and high humidity conditions, and the material has better high temperature resistance and hydrolysis resistance, thereby improving the battery's leakage resistance.

[0030] As a preferred embodiment of this utility model, the outer diameter of the central column 1 is reduced from 7.4~7.6mm to 5.0~5.2mm. By reducing the size of the central column 1 of the sealing ring, the internal air chamber space of the battery is increased, thereby further improving the battery's leakage resistance performance, while reducing the amount of material used by 6~8% and reducing production costs.

[0031] As a preferred embodiment of this utility model, the wall thickness of the outer wall 4 is reduced from 0.8~0.85mm to 0.6~0.65mm. By reducing the wall thickness, the amount of material used is reduced by 15~20%, thereby reducing production costs.

[0032] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A C-type alkaline manganese battery sealing ring structure, characterized in that, It includes a central column (1), an outer wall (4), a connecting part (5), a safety valve (2), and a bottom surface (6). The central column (1) is located in the middle of the sealing ring and has a through hole in the middle. The safety valve (2) is located at the connection between the connecting part (5) and the bottom surface (6). The outer wall (4) is on the outermost side of the sealing ring.

2. The C-type alkaline manganese battery sealing ring structure according to claim 1, characterized in that, The safety valve (2) changes from a "ring" structure to a "fan" structure and is located in the 90° "fan" area of ​​the bottom surface (6).

3. The C-type alkaline manganese battery sealing ring structure according to claim 2, characterized in that, The width of the safety valve (2) is reduced from 0.35~0.45mm to 0.2~0.25mm.

4. The C-type alkaline manganese battery sealing ring structure according to claim 3, characterized in that, The central column (1) is reinforced with 4 to 6 reinforcing ribs (3) around it.

5. The C-type alkaline manganese battery sealing ring structure according to claim 4, characterized in that, The sealing ring material is nylon 612.

6. The C-type alkaline manganese battery sealing ring structure according to claim 5, characterized in that, The outer diameter of the central column (1) is 5.0~5.2mm.

7. The C-type alkaline manganese battery sealing ring structure according to claim 6, characterized in that, The outer wall (4) has a wall thickness of 0.6~0.65mm.

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