Lithium battery cover plate with embedded structure

Abstract

The utility model relates to a lithium battery cover plate with an embedded structure, which aims at solving the technical problem that the current embedded lithium battery cover plate is not convenient enough to install, and comprises a shell and a lithium battery cover plate main body, the lithium battery cover plate main body is arranged at a top opening of the shell, a first notch is formed in the periphery of the top opening of the shell, and a second notch is formed in the top opening of the shell. The lithium battery cover plate main body is of an external expansion type U-shaped design, bulges corresponding to the first notches are arranged on the periphery of the lithium battery cover plate main body, a reinforcing ring is arranged in the lithium battery cover plate main body, a rubber ring is arranged on the periphery of the reinforcing ring, and second notches symmetrical to the rubber ring are formed in the inner wall of the lithium battery cover plate main body. The utility model has the advantage of quick and convenient installation.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery cover plate with an embedded structure. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive / negative electrode material and non-aqueous electrolyte solution. In order to protect the lithium battery, a shell needs to be set outside the lithium battery. The lithium battery shell is mainly composed of a shell and a battery cover. There are many types of battery covers according to the installation form, among which the embedded lithium battery cover is a common one.

[0003] The existing embedded lithium battery cover is usually in the form of a flat plate. The battery cover is sunk into the top of the shell and then fixed by welding. The overall operation is relatively troublesome. In view of this, we propose an embedded structure lithium battery cover. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet practical needs, and provide an embedded structure lithium battery cover to solve the technical problem that the current embedded lithium battery cover is not convenient to install.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing an embedded structure lithium battery cover plate, including a shell and a lithium battery cover plate body, the lithium battery cover plate body is arranged at the top opening of the shell, the top opening of the shell is provided with a first notch around the periphery, the lithium battery cover plate body is an outward-expanding U-shaped design, and the lithium battery cover plate body is provided with protrusions corresponding to the first notch around the periphery;

[0006] A reinforcement ring is arranged inside the main body of the lithium battery cover, a rubber ring is arranged around the reinforcement ring, and a second notch symmetrical to the rubber ring is opened on the inner wall of the main body of the lithium battery cover.

[0007] Preferably, the corner edges of the lithium battery cover body are rounded, and the lithium battery cover body is made of plastic.

[0008] Preferably, a support ring is arranged around the bottom of the reinforcement ring, and the vertical distance between the bottom of the support ring and the top surface of the reinforcement ring is the same as the vertical distance between the inner cavity of the lithium battery cover plate body.

[0009] Preferably, the thickness of the rubber ring is greater than the depth of the second notch, and the diameter of the reinforcement ring is the same as the diameter of the lithium battery cover body after being installed inside the shell.

[0010] Preferably, a sealing cover is screwed onto the top of the reinforcement ring in a threaded manner, and a mounting frame is arranged on the top of the sealing cover.

[0011] Preferably, a through hole is opened in the center of the top of the sealing cover, and a rubber sleeve is arranged inside the through hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The lithium battery cover body of the utility model adopts an outward-expanding U-shaped design. Because the lithium battery cover body is mostly made of plastic, it has a certain reset property. A protrusion is arranged around the top of the lithium battery cover body, and a first notch matching the protrusion is arranged around the top of the shell. Therefore, when the lithium battery cover body is installed, the lithium battery cover body is directly pressed into the top of the shell. At this time, the lithium battery cover body will shrink inward. When the lithium battery cover body is completely pressed into the top of the shell, the corner of the lithium battery cover body will be ninety degrees. Then, because of the reset property of the lithium battery cover body, the protrusion on the lithium battery cover body will be directly inserted into the first notch of the shell, thereby quickly fixing the lithium battery cover body to the top of the shell. Therefore, the utility model has the advantages of fast and convenient installation.

[0014] 2. A reinforcement ring is provided inside the lithium battery cover body of the utility model. The diameter of the reinforcement ring is the same as the diameter of the inner cavity after the lithium battery cover body is installed in the shell and shrinks. Therefore, when the lithium battery cover body is installed on the shell, the reinforcement ring is pressed into the lithium battery cover body, and then the rubber ring around the reinforcement ring will be stuck in the second groove inside the lithium battery cover body, thereby supporting the lithium battery cover body outward, further ensuring the stability of the lithium battery cover body fixed to the top of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation of the housing and lithium battery cover of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the housing and lithium battery cover of the utility model;

[0017] Figure 3 For the utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0018] Figure 4 It is an exploded schematic diagram of the lithium battery cover body and its accessory structure of the utility model.

[0019] In the figure: 1. Shell; 101. First notch; 2. Lithium battery cover body; 201. Protrusion; 202. Second notch; 3. Reinforcement ring; 301. Rubber ring; 302. Support ring; 4. Sealing cover; 401. Through hole; 402. Rubber sleeve; 403. Mounting frame. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] In the embodiment: an embedded structure lithium battery cover, see Figures 1 to 4 , comprising a shell 1 and a lithium battery cover plate body 2, the lithium battery cover plate body 2 is arranged at the top opening of the shell 1, a first notch 101 is opened around the top opening of the shell 1, the lithium battery cover plate body 2 is in an outwardly expanding U-shaped design, and a protrusion 201 corresponding to the first notch 101 is arranged around the lithium battery cover plate body 2. When the lithium battery cover plate body 2 is installed, the lithium battery cover plate body 2 is directly pressed into the top opening of the shell 1. At this time, the lithium battery cover plate body 2 will shrink inwards around the periphery. When the lithium battery cover plate body 2 is completely pressed into the top opening of the shell 1, the corner of the lithium battery cover plate body 2 is nine Ten degrees, and then the lithium battery cover body 2 has its own reset performance, the protrusion 201 on the lithium battery cover body 2 will be directly stuck into the first notch 101 of the shell 1, so that the lithium battery cover body 2 is quickly fixed to the top of the shell 1, and the lithium battery cover body 2 is quickly installed; specifically, the corner edges of the lithium battery cover body 2 adopt a rounded corner design, and the lithium battery cover body 2 is made of plastic. The lithium battery cover body 2 with rounded corners has better bending performance, and the plastic lithium battery cover body 2 itself has a certain reset performance.

[0022] In a specific embodiment, a reinforcement ring 3 is arranged inside the lithium battery cover body 2, and a rubber ring 301 is arranged around the reinforcement ring 3. The inner wall of the lithium battery cover body 2 is provided with a second notch 202 symmetrical to the rubber ring 301. When the lithium battery cover body 2 is installed on the shell 1, the reinforcement ring 3 is pressed into the lithium battery cover body 2, and then the rubber ring 301 around the reinforcement ring 3 will be stuck in the second notch 202 inside the lithium battery cover body 2, thereby supporting the lithium battery cover body 2 outward, further ensuring the stability of the lithium battery cover body 2 being stuck in the top of the shell 1.

[0023] Specifically, a support ring 302 is arranged around the bottom of the reinforcement ring 3, and the vertical distance between the bottom of the support ring 302 and the top surface of the reinforcement ring 3 is the same as the vertical distance of the inner cavity of the lithium battery cover body 2. When the reinforcement ring 3 is pressed into the support ring 302 and the interior of the lithium battery cover body 2, the bottom of the support ring 302 is supported and fixed on the bottom of the lithium battery cover body 2, and the top surface of the reinforcement ring 3 is flush with the top surface of the lithium battery cover body 2 to ensure aesthetics.

[0024] Furthermore, the thickness of the rubber ring 301 is greater than the depth of the second slot 202. Therefore, after the rubber ring 301 is inserted into the second slot 202, the lithium battery cover body 2 can be supported outward. The diameter of the reinforcement ring 3 is the same as the diameter of the lithium battery cover body 2 after being installed inside the shell 1. The reinforcement ring 3 can be placed in the lithium battery cover body 2.

[0025] Furthermore, a sealing cover 4 is screwed onto the top of the reinforcement ring 3 in a threaded form, and a mounting bracket 403 is arranged on the top of the sealing cover 4. The sealing cover 4 is used to seal the lithium battery cover body 2, thereby hiding and protecting the wiring terminals on the lithium battery cover body 2. The mounting bracket 403 is convenient for personnel to hold and twist the sealing cover 4, and the external wires can also be knotted on the mounting bracket 403, which has a fixing effect on the wires and prevents the external wires from being pulled and detached from the wiring terminals on the lithium battery cover body 2.

[0026] It is worth mentioning that a through hole 401 is opened in the center of the top of the sealing cover 4, and a rubber sleeve 402 is arranged inside the through hole 401. The through hole 401 is convenient for the external wire to be connected to the terminal on the lithium battery cover body 2. The rubber sleeve 402 seals the external wire passing through the through hole 401, which can achieve a sealing and waterproof effect. The utility model solves the technical problem that the current embedded lithium battery cover is not convenient to install through the U-shaped outward-expanding lithium battery cover body 2.

[0027] Working principle: When installing the lithium battery cover plate body 2, first, directly press the lithium battery cover plate body 2 into the top opening of the shell 1. At this time, the lithium battery cover plate body 2 will shrink inwards. When the lithium battery cover plate body 2 is completely pressed into the top opening of the shell 1, the angle of the lithium battery cover plate body 2 is 90 degrees. Then, because of the reset performance of the lithium battery cover plate body 2, the protrusion 201 on the lithium battery cover plate body 2 will be directly inserted into the first notch 101 of the shell 1, so as to quickly fix the lithium battery cover plate body 2 to the top opening of the shell 1, and realize the rapid installation of the lithium battery cover plate body 2;

[0028] Secondly, after the lithium battery cover body 2 is installed on the housing 1, the reinforcement ring 3 is pressed into the lithium battery cover body 2, and then the rubber ring 301 around the reinforcement ring 3 is inserted into the second notch 202 inside the lithium battery cover body 2, thereby supporting the lithium battery cover body 2 outward, further ensuring the stability of the lithium battery cover body 2 being fixed to the top of the housing 1;

[0029] Finally, when the external wire is connected to the terminal on the lithium battery cover body 2, the wire can be passed through the rubber sleeve 402 in the through hole 401 and then connected to the terminal on the lithium battery cover body 2, and then the sealing cover 4 can be screwed onto the reinforcement ring 3, so that the connection between the external wire and the terminal on the lithium battery cover body 2 can be sealed and waterproofed.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An embedded structure lithium battery cover, characterized in that: The invention comprises a shell (1) and a lithium battery cover plate body (2), wherein the lithium battery cover plate body (2) is arranged at the top opening of the shell (1), a first notch (101) is provided around the top opening of the shell (1), the lithium battery cover plate body (2) is of an outwardly expanding U-shaped design, and a protrusion (201) corresponding to the first notch (101) is provided around the lithium battery cover plate body (2); A reinforcement ring (3) is arranged inside the lithium battery cover body (2), a rubber ring (301) is arranged around the reinforcement ring (3), and a second notch (202) symmetrical to the rubber ring (301) is opened on the inner wall of the lithium battery cover body (2).

2. The embedded structure lithium battery cover plate according to claim 1, characterized in that: The corner edges of the lithium battery cover plate body (2) are rounded, and the lithium battery cover plate body (2) is made of plastic.

3. The embedded structure lithium battery cover plate according to claim 1, characterized in that: A support ring (302) is arranged around the bottom of the reinforcement ring (3), and the vertical distance between the bottom of the support ring (302) and the top surface of the reinforcement ring (3) is the same as the vertical distance between the inner cavity of the lithium battery cover plate body (2).

4. The embedded structure lithium battery cover plate according to claim 1, characterized in that: The thickness of the rubber ring (301) is greater than the depth of the second notch (202), and the diameter of the reinforcement ring (3) is the same as the diameter of the lithium battery cover plate body (2) after being installed inside the housing (1).

5. The embedded structure lithium battery cover plate according to claim 1, characterized in that: A sealing cover (4) is screwed onto the top of the reinforcement ring (3) in a threaded manner, and a mounting frame (403) is arranged on the top of the sealing cover (4).

6. The embedded structure lithium battery cover plate according to claim 5, characterized in that: A through hole (401) is provided at the center of the top of the sealing cover (4), and a rubber sleeve (402) is arranged inside the through hole (401).

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