CN217214906U

CN217214906U - Alkaline battery sealing ring structure

Info

Publication number: CN217214906U
Application number: CN202220716993.2U
Authority: CN
Inventors: 常海涛; 钟晓桥; 林建兴; 伍道群
Original assignee: Fujian Nanping Nanfu Battery Co Ltd
Current assignee: Fujian Nanping Nanfu Battery Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-08-16
Anticipated expiration: 2032-03-30

Abstract

The utility model provides an alkaline battery sealing washer structure, include the sealing washer body and be located the central point of sealing washer body puts and follows the perpendicular center post that sets up of the central axis of sealing washer body, the upper end of center post is negative pole lid installation end, its characterized in that: the center post is a multi-section structure with at least one large-diameter section and at least one small-diameter section, wherein the outer peripheral surface of one large-diameter section is connected with the sealing ring body to serve as a center post sealing ring connecting section, and at least one small-diameter section is located below the center post sealing ring connecting section. The utility model discloses an alkaline battery sealing washer structure can solve center post hollowization, sealing washer material cost height and electrolyte simultaneously and store the problem that the volume is few on the side.

Description

Alkaline battery sealing ring structure

Technical Field

The utility model relates to an alkaline battery part field especially relates to an alkaline battery sealing washer structure.

Background

The main structure of the alkaline battery is composed of a steel shell, a positive electrode, a negative electrode, a current collector and the like. The current collector comprises a sealing ring and current collecting electrons, the sealing ring comprises a sealing ring body 10 ', a central post 20' is arranged at the central position of the sealing ring body 10 ', one shaft end of the central post 20' is a negative electrode cover mounting end, and a central hole 24 '(as shown in fig. 1) for inserting the current collecting electrons (also called current collecting nails or copper pins) welded on the negative electrode cover is formed in the central post 20'. The following problems often exist in the production process of the sealing ring of the existing alkaline battery: (1) the diameter of the central column is large, the central column is often difficult to fill due to the flowability of materials in the injection molding process, and the central column is hollowed in the injection molding and cooling process, so that the strength of the central column is greatly reduced, the sealing performance between the central column and the copper needle is influenced, and the safety performance of the battery is reduced; (2) the central column has heavy weight, and the material cost of the sealing ring is increased; (3) the central column occupies a large internal space of the battery, and storage capacity of electrolyte is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an alkaline battery sealing washer structure, this structure can solve foretell center post hollowization, sealing washer material with high costs and the electrolyte storage volume problem less than normal simultaneously.

The utility model provides an alkaline battery sealing washer structure, includes the sealing washer body and is located the central point of sealing washer body puts and follows the perpendicular center post that sets up of the central axis of sealing washer body, the upper end of center post is negative pole lid installation end, its characterized in that: the center post is the multistage structure that has at least one thick footpath section and at least one thin footpath section, and wherein one the outer peripheral face of thick footpath section with the sealing washer body is connected and is regarded as center post sealing washer linkage segment, has at least one section thin footpath section to be located center post sealing washer linkage segment's below.

The alkaline battery sealing ring structure of the utility model can avoid the problem of central column hollowing caused by too large central column diameter, and can greatly reduce the cost of the sealing ring material; in addition, a larger internal space is provided for the battery, and more electrolyte is convenient to store.

Preferably, the center post is a two-section structure having a large diameter section and a small diameter section, the large diameter section is used as the center post sealing ring connecting section, and the small diameter section is located below the center post sealing ring connecting section.

Preferably, the center post is a three-section structure having a large diameter section and two small diameter sections, the large diameter section is used as the center post sealing ring connecting section, and the two small diameter sections are respectively arranged at the upper end side and the lower end side of the center post sealing ring connecting section.

Preferably, the center post is a three-section structure having a large-diameter section and two small-diameter sections, the large-diameter section is used as the center post sealing ring connecting section, and the two small-diameter sections are respectively arranged at the upper end side and the lower end side of the center post sealing ring connecting section.

Preferably, the average outer diameter of the small diameter section is equal to 30% to 80% of the average outer diameter of the large diameter section.

Drawings

FIG. 1 is a schematic cross-sectional view of a prior art alkaline cell seal ring structure;

fig. 2 is a schematic sectional structural view of the structure of the seal ring of the alkaline cell of example 1;

FIG. 3 is a schematic sectional view of the structure of the seal ring of the alkaline cell of example 2

Wherein, the chain line in fig. 1-3 is the central axis of the seal ring body.

Detailed Description

The following detailed description of the embodiments of the sealing ring structure of alkaline battery according to the present invention is made with reference to the accompanying drawings:

example 1

As shown in fig. 2, an alkaline battery sealing ring structure includes a sealing ring body 10 and a central column 20 located at the center of the sealing ring body 10 and vertically disposed along the central axis of the sealing ring body 10, wherein the upper end of the central column 20 is a negative electrode cap mounting end, and is characterized in that: the center post 20 is a three-section structure having a large diameter section 22 and two small diameter sections (21, 23), the outer peripheral surface of the large diameter section 22 is connected with the seal ring body 10 to serve as a center post seal ring connecting section, one of the two small diameter sections (21, 23) is located above the center post seal ring connecting section 22, and the other small diameter section 23 is located below the center post seal ring connecting section 22.

Example 2

The alkaline battery sealing ring structure of example 2 differs from that of example 1 in that: the center post 20 has a two-section structure having a large diameter section 22 and a small diameter section 23, the large diameter section 22 serves as the center post seal ring connecting section, and the small diameter section 23 is located below the center post seal ring connecting section 22 (as shown in fig. 3).

The alkaline battery sealing ring structures of the embodiment 1 and the embodiment 2 can avoid the problem of central column hollowing caused by too large diameter of the central column 20, and can greatly reduce the cost of the sealing ring material; in addition, a larger internal space is provided for the battery, and more electrolyte is convenient to store.

Preferably, the average outer diameter (A, C) of the small diameter sections (21, 23) is equal to 30% to 80% of the average outer diameter B of the large diameter section 22.

As shown in fig. 2 or fig. 3, the central post 20 is provided with a central hole 24 for inserting an electron collector welded to the cathode cover.

It should be noted that, the number of the large diameter section of the central pillar 20 of the present invention is not limited to one section in the drawings, and may be two, three or more sections, and the number of the small diameter section of the central pillar 20 is not limited to one, two or more sections in the drawings, and may also be three or more sections.

The utility model discloses right the utility model belongs to the technical field of the ordinary skilled person, do not deviating from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides an alkaline battery sealing washer structure, includes the sealing washer body and is located the central point of sealing washer body puts and follows the perpendicular center post that sets up of the central axis of sealing washer body, the upper end of center post is negative pole lid installation end, its characterized in that: the center post is the multistage structure that has at least one thick footpath section and at least one thin footpath section, and wherein one the outer peripheral face of thick footpath section with the sealing washer body is connected and is regarded as center post sealing washer linkage segment, has at least one section thin footpath section to be located center post sealing washer linkage segment's below.

2. The alkaline cell seal ring structure according to claim 1, wherein: the center post is for having two section structures of a heavy footpath section and a thin footpath section, the heavy footpath section is as center post sealing washer linkage segment, the thin footpath section is located center post sealing washer linkage segment's below.

3. The alkaline cell seal ring structure of claim 1, wherein: the center post is the three-section structure that has a diameter section and two diameter sections, the diameter section is regarded as center post sealing washer linkage segment, two diameter section is separated the upper and lower both ends side of center post sealing washer linkage segment.

4. The alkaline cell seal ring structure of claim 1, wherein: the average outer diameter of the small-diameter section is equal to 30% -80% of the average outer diameter of the large-diameter section.