Sodium battery cover plate facilitating maintenance and replacement of single battery in energy storage module

Abstract

The utility model relates to the technical field of sodium ion battery structural members, in particular to a sodium battery cover plate convenient for maintenance and replacement of a single battery in an energy storage module, which comprises a positive pole, a negative pole, a positive plastic insulator, a negative plastic insulator, a substrate, a lower plastic bracket, a positive lead piece, a negative lead piece, a sealing ring, a rivet, an anti-explosion pressure release valve and an anti-explosion valve protective film, according to the sodium battery cover plate, the positive pole and the negative pole of the sodium battery cover plate are changed into the screw seat type from the traditional plane type, so that the replacement of a single battery in an energy storage system is greatly facilitated, the working efficiency is effectively improved, and the cost is reduced; the problem that when a traditional planar pole is replaced, a conducting bar needs to be welded to the planar pole of a cover plate in a laser welding mode, and the mode can still be executed in the environment with complete infrastructures but is difficult to execute in the field or in the environment with insufficient infrastructures is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium ion battery structural parts, in particular to a sodium battery cover plate which is convenient for repairing and replacing single batteries in an energy storage module. Background Art

[0002] The replacement of square batteries in energy storage systems usually requires laser welding to weld the conductive bar in the battery module to the pole of the battery cover. This method can be implemented when the infrastructure is relatively complete, but it is difficult to implement in the wild environment or when the infrastructure is lacking, which makes it difficult to effectively break through the cost and efficiency of battery replacement.

[0003] In summary, the utility model solves the existing problems by designing a sodium battery cover plate that is convenient for repairing and replacing single batteries in an energy storage module. Utility Model Content

[0004] The utility model aims to provide a sodium battery cover plate which is convenient for repairing and replacing single batteries in an energy storage module, so as to solve the problems raised in the above-mentioned background technology.

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

[0006] A sodium battery cover plate which is convenient for repairing and replacing a single battery in an energy storage module comprises positive and negative poles, positive and negative pole plastic insulating parts, a substrate, a lower plastic bracket, positive and negative pole leads, a sealing ring, rivets, an explosion-proof pressure relief valve and an explosion-proof valve protective film, wherein two groups of rivets are arranged, each group of rivets penetrates the sealing ring, the positive and negative pole leads, the lower plastic bracket, the substrate, the positive and negative pole plastic insulating parts and the positive and negative poles from top to bottom, and are riveted into a whole, a substrate is installed on the end surface of the lower plastic bracket, an explosion-proof pressure relief valve is welded at the center of the end surface of the substrate, an explosion-proof valve protective film is affixed above the explosion-proof pressure relief valve, the positive and negative poles are in an insulating state from the substrate, the positive and negative poles are screw seat type, and the positive and negative poles are made of 304 stainless steel.

[0007] As a preferred solution of the utility model, the positive and negative poles, positive and negative plastic insulating parts, substrate, lower plastic bracket, positive and negative lead sheets and sealing rings are symmetrically arranged with the explosion-proof pressure relief valve as the axis.

[0008] As a preferred solution of the utility model, the positive and negative electrode leads are embedded in the corresponding notches at the bottom of the positive and negative electrode leads.

[0009] As a preferred solution of the utility model, through holes are respectively provided on the positive and negative poles, the positive and negative plastic insulating parts, the substrate, the lower plastic bracket, and the positive and negative lead sheets, corresponding to the rivets.

[0010] As a preferred solution of the utility model, the sealing rings are arranged in two groups, and each group has two sealing rings, each sealing ring is respectively sleeved on the outer wall of the rivet, and each sealing ring is correspondingly installed on the through hole opened in the positive and negative electrode leads.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by changing the positive and negative poles of the sodium battery cover from the traditional plane type to the screw seat type, the replacement of a single battery in the energy storage system is greatly facilitated, the work efficiency is effectively improved and the cost is reduced, and the problem that the traditional plane pole needs to be laser welded to the plane pole of the cover when replacing it is effectively solved. This method can be implemented in an environment with complete infrastructure, but it is difficult to implement in the wild or in an environment with insufficient infrastructure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the explosion structure of the utility model.

[0014] In the figure: 1. Positive and negative poles; 2. Positive and negative plastic insulating parts; 3. Base plate; 4. Lower plastic bracket; 5. Positive and negative lead sheets; 6. Sealing ring; 7. Rivet; 8. Explosion-proof valve; 9. Explosion-proof valve protective film. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0017] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0019] For examples, see Figure 1 , the utility model provides a technical solution:

[0020] A sodium battery cover plate that is convenient for repairing and replacing a single battery in an energy storage module, comprising positive and negative poles 1, positive and negative pole plastic insulating parts 2, a substrate 3, a lower plastic bracket 4, positive and negative pole lead pieces 5, a sealing ring 6, a rivet 7, an explosion-proof pressure relief valve 8 and an explosion-proof valve protective film 9, wherein two groups of rivets 7 are provided, and each group of rivets 7 penetrates the sealing ring 6, the positive and negative pole lead pieces 5, the lower plastic bracket 4, the substrate 3, the positive and negative pole plastic insulating parts 2 and the positive and negative poles 1 from top to bottom, and are riveted into a whole, the substrate 3 is installed on the end surface of the lower plastic bracket 4, the explosion-proof pressure relief valve 8 is welded at the center of the end surface of the substrate 3, and the explosion-proof valve protective film 9 is attached above the explosion-proof pressure relief valve 8, the positive and negative poles 1 and the substrate 3 are both in an insulating state, which is different from the structure in which the positive pole of a lithium battery is usually in a conductive state with the substrate;

[0021] The positive and negative poles 1 are screw-type. Compared with the traditional planar poles, this type is more advantageous in that it is convenient to quickly repair and replace the failed single cells in the energy storage system in outdoor and field environments, solving the disadvantageous working conditions of the traditional flat pole battery, which requires cutting the connection row and relying on laser welding for repair and replacement in the failed state;

[0022] The positive and negative poles 1 are made of 304 stainless steel, which has the advantage of not being easy to rust in the absence of maintenance or in outdoor or field environments, and having stronger wear resistance than copper and other materials, thereby achieving a longer service life.

[0023] The positive and negative poles 1, the positive and negative plastic insulating parts 2, the base plate 3, the lower plastic bracket 4, the positive and negative lead pieces 5 and the sealing ring 6 are symmetrically arranged with the explosion-proof pressure relief valve 8 as the axis.

[0024] The positive and negative electrode leads 5 are embedded in the corresponding notches at the bottom of the positive and negative electrode leads 5 .

[0025] Through holes are respectively provided on the positive and negative poles 1, the positive and negative plastic insulating parts 2, the substrate 3, the lower plastic support 4, and the positive and negative lead sheets 5, corresponding to the rivets 7.

[0026] Two groups of sealing rings 6 are provided, and each group consists of two sealing rings. Each sealing ring 6 is respectively sleeved on the outer wall of the rivet 7 , and each sealing ring 6 is correspondingly installed on the through hole opened in the positive and negative electrode leads 5 .

[0027] Based on the above conditions: the positive and negative poles 1 of the sodium battery cover are changed from the traditional plane type to the screw seat type, which greatly facilitates the replacement of a single battery in the energy storage system, effectively improves work efficiency and reduces costs, and effectively solves the problem that when replacing the traditional plane poles, the conductive bar needs to be laser welded to the plane pole of the cover. This method can be implemented in an environment with complete infrastructure, but it is difficult to implement in the wild or in an environment with insufficient infrastructure.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sodium battery cover plate for facilitating the maintenance and replacement of a single battery in an energy storage module, comprising positive and negative poles (1), positive and negative plastic insulating members (2), a base plate (3), a lower plastic support (4), positive and negative electrode leads (5), a sealing ring (6), a rivet (7), an explosion-proof pressure relief valve (8) and an explosion-proof valve protective film (9), characterized in that: The rivets (7) are arranged in two groups, and each group of rivets (7) penetrates the sealing ring (6), the positive and negative electrode leads (5), the lower plastic bracket (4), the substrate (3), the positive and negative electrode plastic insulating parts (2) and the positive and negative electrode poles (1) from top to bottom, and are riveted into a whole. The substrate (3) is installed on the end surface of the lower plastic bracket (4), and an explosion-proof pressure relief valve (8) is welded at the center of the end surface of the substrate (3). An explosion-proof valve protective film (9) is attached above the explosion-proof pressure relief valve (8). The positive and negative electrode poles (1) are insulated from the substrate (3). The positive and negative electrode poles (1) are screw seat type, and the positive and negative electrode poles (1) are made of 304 stainless steel.

2. A sodium battery cover plate that facilitates the maintenance and replacement of single batteries in an energy storage module according to claim 1, characterized in that: The positive and negative poles (1), the positive and negative plastic insulating parts (2), the base plate (3), the lower plastic support (4), the positive and negative lead sheets (5) and the sealing ring (6) are symmetrically arranged based on the explosion-proof pressure relief valve (8) as an axis.

3. A sodium battery cover plate for facilitating the maintenance and replacement of single batteries in an energy storage module according to claim 1, characterized in that: The positive and negative electrode leads (5) are embedded in the corresponding notches at the bottom of the positive and negative electrode leads (5).

4. A sodium battery cover plate for facilitating the maintenance and replacement of single batteries in an energy storage module according to claim 1, characterized in that: Through holes are respectively provided on the positive and negative poles (1), the positive and negative plastic insulating parts (2), the base plate (3), the lower plastic support (4), and the positive and negative lead sheets (5) and correspond to the rivets (7).

5. A sodium battery cover plate for facilitating the maintenance and replacement of single batteries in an energy storage module according to claim 4, characterized in that: The sealing rings (6) are arranged in two groups, each group having two sealing rings. Each sealing ring (6) is respectively sleeved on the outer wall of the rivet (7). Each sealing ring (6) is correspondingly installed on the through hole opened in the positive and negative electrode leads (5).

Images