Novel battery cover plate structure

Abstract

The utility model discloses a novel battery cover plate structure, which relates to the technical field of battery cover plates and comprises a base plate, two groups of assembly grooves are formed in the top end face of the base plate, through holes are formed in the inner sides of the assembly grooves in a penetrating manner, and a convex ring table is arranged on the bottom wall of one group of assembly grooves. The protruding annular table arranged on the base plate can be in contact with the bottom of the positive electrode pressing plate when the positive electrode pressing plate is installed on a positive electrode column, so that positive electrode current can be conducted to a battery shell, impressed current on the battery shell is achieved, the battery shell becomes a part of a battery anode, and the service life of the battery is prolonged. Therefore, the potential of the surface of the battery shell is changed, the battery shell is polarized, the corrosion reaction is inhibited, the corrosion rate of the battery shell can be slowed down or stopped, the service life of the battery shell is prolonged, a weak guide plate in a traditional battery is replaced while good anti-corrosion protection is formed on the battery shell, and the service life of the battery shell is prolonged. And the cost of batch production of the batteries is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cover plates, in particular to a novel battery cover plate structure. Background Art

[0002] The battery cover is part of the battery assembly, usually used to enclose the battery cell or battery pack to protect the internal battery core and circuit. It can be made of a variety of materials, including plastic, metal, rubber or composite materials to meet different performance requirements.

[0003] When most of the existing battery covers are assembled with the battery module and battery shell, through holes are often opened on the substrate of the battery cover to allow the poles to pass through the substrate. During assembly, the positive and negative poles are limited by pressure plates. The bottom ends of the positive and negative poles are located inside the battery shell and connected to the battery module. The positive and negative poles are fixed to the cover by riveting or welding, and then the positive terminal pressure plate and the substrate are connected by a weak guide plate to achieve corrosion protection for the battery shell. However, the weak guide plates used in this method are relatively expensive, which leads to high production costs and is not conducive to mass production. Utility Model Content

[0004] The purpose of the utility model is to provide a novel battery cover structure to solve the technical problem that most existing battery covers use weak guide plates to achieve communication between the positive terminal plate and the base plate, resulting in high production costs.

[0005] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0006] A novel battery cover structure includes a substrate;

[0007] Two groups of assembly grooves are provided on the top end surface of the base plate, and through holes are provided through the inner sides of the assembly grooves. A raised ring platform is provided on the bottom wall of one group of assembly grooves, and the inner diameter of the raised ring platform is not less than the inner diameter of the through hole. The two are distributed in a vertical fit along the central axis.

[0008] As a further solution of the present invention: a stop frame is provided at the bottom of the substrate, and a plurality of heat dissipation holes are opened on the stop frame, a positive pole is sleeved in the through hole with a raised ring platform, and the bottom end of the positive pole passes through the stop frame.

[0009] As a further solution of the present invention: a negative pole is sleeved in another group of through holes, and the bottom end of the negative pole also passes through the stop frame.

[0010] As a further solution of the present invention: a positive electrode pressure plate is provided around the outer side of the top of the positive electrode column, and the bottom of the positive electrode pressure plate is in contact with the top of the raised ring platform.

[0011] As a further solution of the present invention: a negative electrode pressure plate is provided around the outer side of the top of the negative electrode column, and an insulating plate matching the positive electrode pressure plate and the negative electrode pressure plate is provided at the inner edge of the assembly groove.

[0012] As a further solution of the present invention: the bottom ends of the positive pole and the negative pole are both provided with electrode connecting pieces, and the bottom of the stop frame is provided with a limiting block for fixing the electrode connecting pieces.

[0013] Beneficial effects of the utility model:

[0014] In the utility model, the raised ring platform provided on the substrate can contact the bottom of the positive electrode pressure plate when the positive electrode pressure plate is installed on the positive electrode column, so that the positive electrode current can be conducted to the battery shell, and the external current is applied to the battery shell, so that the battery shell also becomes a part of the battery anode, thereby changing the potential of the battery shell surface, polarizing it, inhibiting the occurrence of corrosion reaction, slowing down or stopping the corrosion rate of the battery shell, extending the service life of the battery shell, and forming good anti-corrosion protection for the battery shell while replacing the weak conductor in the traditional battery, greatly reducing the cost of battery mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the device in the present utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the stop frame of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the raised frustum in the present utility model;

[0019] Figure 4 It is a schematic diagram of the overall structure of the device in the utility model.

[0020] In the figure: 1. Base plate; 2. Stop frame; 3. Assembly groove; 4. Raised ring platform; 5. Through hole; 6. Positive pole; 7. Negative pole; 8. Positive pole pressure plate; 9. Negative pole pressure plate; 10. Insulating plate; 11. Electrode connecting piece; 12. Limiting block. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-4 As shown, a novel battery cover structure includes a substrate 1;

[0023] A stop frame 2 is provided at the bottom of the base plate 1, and a plurality of heat dissipation holes are opened on the stop frame 2. The battery cover can be assembled to the battery module and the shell as a whole through the stop frame 2, ensuring the overall stability of the battery cover during assembly.

[0024] Two groups of assembly grooves 3 are provided on the top end surface of the substrate 1. Through holes 5 are provided on the inner sides of the assembly grooves 3. A raised ring platform 4 is provided on the bottom wall of one group of assembly grooves 3, and the inner diameter of the raised ring platform 4 is not less than the inner diameter of the through hole 5. The two are distributed in a vertical fit with the same central axis. A positive pole column 6 is sleeved in the through hole 5 with the raised ring platform 4, and the bottom end of the positive pole column 6 passes through the stop frame 2. A positive pole pressure plate 8 is sleeved around the outer side of the top of the positive pole column 6, and the bottom of the positive pole pressure plate 8 is in contact with the top of the raised ring platform 4. A negative pole column 7 is sleeved in the other group of through holes 5, and the negative pole column 7 is sleeved in the other group of through holes 5. The bottom end of the pole 7 also passes through the stop frame 2, and a negative pole pressure plate 9 is provided around the outer side of the top of the negative pole 7. An insulating plate 10 matching the positive pole pressure plate 8 and the negative pole pressure plate 9 is provided at the inner edge of the assembly groove 3. The through hole 5 is used for the installation of the positive pole 6 and the negative pole 7, and also has a certain limiting effect on the positive pole 6 and the negative pole 7, ensuring that the positive pole 6 and the negative pole 7 will not tilt during assembly. The assembly groove 3 provided on the substrate 1 provides a certain space for the installation of the insulating plate 10, and when the insulating plate 10 is installed in the assembly groove 3 When the positive pole 6 and the negative pole 7 are assembled, the staff can respectively put the positive pole pressure plate 8 and the negative pole pressure plate 9 on the top of the positive pole 6 and the negative pole 7, thereby forming a secondary extrusion limit for the positive pole 6 and the negative pole 7, thereby ensuring that the subsequent positive pole 6 and the negative pole 7 can be normally connected with the electrode connecting piece 11. The connection is not prone to shaking, and it is also convenient for the contact and conduction between the battery and external equipment during subsequent use. When the positive pressure plate 8 is installed on the positive column 6, the bottom of the positive pressure plate 8 is in contact with the raised ring platform 4 set on the substrate 1, so that the positive current can be conducted to the battery shell, realizing the external current of the battery shell, so that the battery shell also becomes a part of the battery anode, thereby changing the potential of the battery shell surface, polarizing it, inhibiting the occurrence of corrosion reaction, slowing down or stopping the corrosion rate of the battery shell, and extending the service life of the battery shell.

[0025] In this embodiment, specifically, the bottom ends of the positive electrode column 6 and the negative electrode column 7 are each provided with an electrode connecting piece 11, which is connected to the positive and negative electrodes of the battery module respectively through the provided electrode connecting piece 11, thereby achieving communication with the positive and negative electrodes of the battery module and the positive electrode column 6 and the negative electrode column 7 on the battery cover, ensuring normal conductivity during subsequent use, and the bottom of the stop frame 2 is provided with a limiting block 12 for fixing the electrode connecting piece 11, and the electrode connecting piece 11 is stably fixed by the limiting block 12, ensuring that the electrode connecting piece 11 will not be offset during use.

[0026] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A novel battery cover structure, comprising a substrate (1); characterized in that: Two groups of assembly grooves (3) are provided on the top end surface of the base plate (1), and through holes (5) are provided on the inner sides of the assembly grooves (3). A raised ring platform (4) is provided on the bottom wall of one group of the assembly grooves (3), and the inner diameter of the raised ring platform (4) is not less than the inner diameter of the through hole (5), and the two are arranged in a vertically aligned manner along the central axis.

2. A new battery cover structure according to claim 1, characterized in that: A stop frame (2) is provided at the bottom of the substrate (1), and a plurality of heat dissipation holes are provided on the stop frame (2). A positive pole (6) is sleeved in the through hole (5) provided with the raised ring platform (4), and the bottom end of the positive pole (6) passes through the stop frame (2).

3. A new battery cover structure according to claim 2, characterized in that: A negative pole (7) is sleeved in another group of through holes (5), and the bottom end of the negative pole (7) also passes through the stop frame (2).

4. A new battery cover structure according to claim 2, characterized in that: A positive electrode pressure plate (8) is provided around the outer side of the top of the positive electrode column (6), and the bottom of the positive electrode pressure plate (8) is in contact with the top of the raised ring platform (4).

5. A new battery cover structure according to claim 3, characterized in that: A negative electrode pressing plate (9) is provided around the outer side of the top of the negative electrode column (7), and an insulating plate (10) matching the positive electrode pressing plate (8) and the negative electrode pressing plate (9) is provided at the inner edge of the assembly groove (3).

6. A new battery cover structure according to claim 3, characterized in that: The bottom ends of the positive pole (6) and the negative pole (7) are both provided with electrode connecting pieces (11), and the bottom of the stop frame (2) is provided with a limiting block (12) for fixing the electrode connecting pieces (11).

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