Battery cover plate capable of recycling secondary injection liquid

Abstract

The utility model relates to the technical field of battery cover plates, in particular to a battery cover plate capable of recycling secondary injection liquid, which comprises a battery cover plate main body, a liquid injection hole seat is integrally arranged below the battery cover plate main body, and a stepped inner hole is arranged in the liquid injection hole seat. A stepped hole is formed in the liquid injection hole seat, positioning threaded columns are circumferentially and uniformly distributed and fixed to the upper end of the stepped hole of the liquid injection hole seat, a liquid injection hole column is fastened and inserted in the liquid injection hole seat, a sealing fastening gasket and a fastening sealing plate are arranged above the liquid injection hole column, and limiting holes corresponding to the positioning threaded columns in position are formed in the fastening sealing plate; an inner threaded hole is formed in the middle of the fastening sealing plate, and a fastening cover is clamped to the upper end of the liquid injection hole column. According to the battery cover plate capable of recycling the secondary injected liquid, the detachable and replaceable liquid injection hole columns are arranged in the liquid injection hole seats, the problem that sealing is not tight due to opening of multiple times of liquid injection is avoided, sealing of the battery cover plate is achieved by conducting blocking treatment on the liquid injection hole columns, and the overall structure is stable.

Description

Technical Field

[0001] This utility model relates to the field of battery cover technology, specifically a recyclable battery cover that can be refilled with electrolyte. Background Technology

[0002] The battery cover is an important component of the battery structure. It is mainly used to seal the battery casing, protect the internal electrochemical system from the influence of the external environment, such as moisture, oxygen and other contaminants, and also to fix the electrodes and connect the external circuit.

[0003] Existing battery covers typically consist of a safety valve, current collector, explosion-proof structure, and electrolyte injection port. By designing the electrolyte injection port of the battery cover to be reusable, the battery cover can be recycled and refilled, extending the battery's lifespan, reducing costs, and also reducing the environmental impact of waste batteries. However, when replenishing electrolyte, the electrolyte injection port needs to be opened, which can easily cause wear on the sealing parts, thus affecting the recycling and reuse of the battery cover. Utility Model Content

[0004] The purpose of this invention is to provide a recyclable battery cover that can be refilled with electrolyte, in order to solve the problem mentioned in the background art that current battery covers on the market require opening the filling port when replenishing electrolyte, which easily causes wear on the sealing parts and thus affects the recycling and reuse of the battery cover.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a recyclable battery cover plate for secondary liquid injection, comprising a battery cover plate body, an injection hole seat integrally provided below the battery cover plate body, and a stepped inner hole provided in the injection hole seat, and a positioning threaded post is fixedly distributed circumferentially at the upper end of the stepped hole of the injection hole seat, the injection hole post is fastened and inserted into the injection hole seat, and a sealing fastening washer and a fastening sealing plate are provided above the injection hole post, the fastening sealing plate is provided with a limiting hole corresponding to the position of the positioning threaded post, and an internal threaded hole is provided in the middle of the fastening sealing plate, the upper end of the injection hole post is engaged with a fastening cap, and the fastening cap is screwed into the fastening sealing plate through the internal threaded hole.

[0006] Preferably, the stepped structure of the injection hole seat is integrally provided with reinforcing ribs, and a sealing cap is also engaged at the upper opening of the injection hole seat.

[0007] Preferably, the top of the positioning threaded post is flush with the upper end face of the battery cover body, and a fastening nut is tightened on the positioning threaded post.

[0008] Preferably, the injection hole column is located below the fastening sealing plate, and the upper end of the injection hole column is provided with a protrusion that is locked into the inner hole of the fastening sealing plate.

[0009] Preferably, the upper end of the fastening cover is provided with an opening groove, and the upper end surface of the opening groove is flush with the upper end surface of the fastening cover plate.

[0010] Preferably, the sealing and fastening washer and the positioning threaded post are also through-fitted, and the inner ring of the sealing and fastening washer is engaged with the fastening cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The recyclable, refillable battery cover has a detachable and replaceable injection hole column within the injection hole seat, avoiding the problem of poor sealing caused by repeated injection openings. The battery cover is sealed by plugging the injection hole column, resulting in a stable overall structure. The recyclable, refillable battery cover uses a fastening plate to secure the injection hole column, and a sealing washer for sealing the injection hole column is fastened to the lower end of the fastening plate, ensuring a stable and secure sealing structure. Attached Figure Description

[0012] Figure 1 This is a side view of a battery cover plate structure that can be recycled and refilled with electrolyte according to this utility model;

[0013] Figure 2 This utility model relates to a battery cover plate that can be recycled and refilled with electrolyte. Figure 1 Enlarged structural diagram at point A in the middle;

[0014] Figure 3 This is a top view of a recyclable, refillable battery cover according to the present invention.

[0015] Figure 4 This is a schematic diagram of the fastening sealing plate structure of a recyclable and refillable battery cover according to the present invention.

[0016] Figure 5 This is a schematic diagram of the fastening cover structure of a recyclable, refillable battery cover according to the present invention.

[0017] In the diagram: 1. Battery cover body; 2. Injection hole seat; 201. Reinforcing rib; 202. Positioning threaded post; 203. Fastening nut; 3. Injection hole post; 4. Fastening sealing plate; 401. Limiting hole; 402. Internal threaded hole; 5. Fastening cover; 501. Opening groove; 6. Sealing cover; 7. Sealing fastening washer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution: a recyclable battery cover plate for secondary liquid injection, including a battery cover plate body 1, with an injection hole seat 2 integrally provided below the battery cover plate body 1, and the injection hole seat 2 having a stepped inner hole. The stepped structure of the injection hole seat 2 is integrally provided with reinforcing ribs 201, and a sealing cap 6 is also engaged at the upper opening of the injection hole seat 2. This structure makes the injection hole seat 2 structurally stable and reliable, extends the service life of the injection hole seat 2, allows the battery cover plate body 1 to be recycled and reused, and the sealing cap 6 provides an aesthetically pleasing upper end for the injection port, while also providing flat protection. The upper end of the stepped hole of the hole seat 2 is uniformly fixed with positioning threaded posts 202. An injection hole post 3 is tightly inserted into the injection hole seat 2. A sealing washer 7 and a fastening plate 4 are provided above the injection hole post 3. The injection hole post 3 is located below the fastening plate 4, and its upper end has a protrusion that engages with the inner hole of the fastening plate 4. This structure, through the protrusion at the upper end of the injection hole post 3, increases the tightness of the sealing washer 7 engaging between the fastening plate 4 and the injection hole post 3. The fastening plate 4 has a limiting hole 401 corresponding to the position of the positioning threaded post 202. The battery cover plate 4 has an internal threaded hole 402. The top of the positioning threaded post 202 is flush with the upper surface of the battery cover plate body 1, and a fastening nut 203 is tightened on the positioning threaded post 202. This structure, through the design of the positioning threaded post 202, can achieve the positioning of the fastening sealing plate 4. The fastening sealing plate 4 can fasten the injection hole post 3, the fastening cover 5, and the sealing fastening washer 7, ensuring the sealing of the injection port while allowing for multiple opening and injection processes. At the same time, any component of the fastening sealing plate 4, the injection hole post 3, the fastening cover 5, or the sealing fastening washer 7 can be replaced if worn, making it easy to recycle and reuse. The upper end of the injection hole column 3 is fitted with a fastening cap 5. The upper end of the fastening cap 5 has an opening groove 501, and the upper surface of the opening groove 501 is flush with the upper surface of the fastening sealing plate 4. This structure allows the opening groove 501 to be designed as a straight line or a cross shape to facilitate the rotation and opening of the fastening cap 5. The fastening cap 5 is screwed into the fastening sealing plate 4 through the internal threaded hole 402. The sealing fastening washer 7 and the positioning threaded column 202 also pass through and engage, and the inner ring of the sealing fastening washer 7 engages with the fastening cap 5. This structure allows the sealing fastening washer 7 to not only seal the injection hole column 3, but also support the fastening sealing plate 4.

[0020] Working principle: When using this recyclable, refillable battery cover, the battery cover body 1 is integrally designed with an injection hole seat 2, and reinforcing ribs 201 are added to the side of the injection hole seat 2 to strengthen the structure and make the injection hole seat 2 stable and reliable. At the same time, positioning threaded posts 202 are welded evenly at intervals to the upper position of the stepped structure inside the injection hole seat 2, so that the sealing fastening washer 7 and the fastening sealing plate 4 can be positioned sequentially through the positioning threaded posts 202. After the limiting hole 401 passes through the positioning threaded post 202, the fastening nut 203 is used to fasten the sealing plate 4 to the battery cover body 1. After securing the cover 5, which is located on the upper end of the injection hole column 3, the cover 5 is rotated through the opening groove 501, allowing it to be screwed into the sealing plate 4 through the internal thread hole 402. The sealing gasket 7 simultaneously seals the cover 5, thus sealing the injection hole seat 2. Finally, the sealing cover 6 is snapped into the injection hole seat 2 for sealing and protection. The removable and replaceable design of the sealing plate 4 and the injection hole column 3 allows the injection part of the battery cover body 1 to be disassembled, preventing wear on the injection sealing part from affecting the recycling and secondary injection of the battery cover body 1, thereby completing a series of operations.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A recyclable secondary liquid injection battery cover plate comprising a battery cover plate body (1), characterized in that: The battery cover plate body (1) below is integrally provided with a liquid injection hole seat (2), and the liquid injection hole seat (2) is provided with a stepped inner hole, and the upper end of the stepped hole of the liquid injection hole seat (2) is fixed with a positioning threaded column (202) which is uniformly distributed in a circle, the liquid injection hole seat (2) is tightly inserted with a liquid injection hole column (3), and the upper part of the liquid injection hole column (3) is provided with a sealing fastening washer (7) and a fastening sealing plate (4), the fastening sealing plate (4) is provided with a limiting hole (401) corresponding to the position of the positioning threaded column (202), and the middle part of the fastening sealing plate (4) is provided with an internal thread hole (402), the upper end of the liquid injection hole column (3) is clamped with a fastening cover (5), and the fastening cover (5) is screwed in the fastening sealing plate (4) through the internal thread hole (402).

2. The recyclable secondary liquid injection battery cover plate of claim 1, wherein: The liquid injection hole seat (2) is integrally provided with a reinforcing rib (201) outside the stepped structure, and the upper end opening of the liquid injection hole seat (2) is also clamped with a sealing cover (6).

3. The recyclable secondary liquid injection battery cover plate of claim 1, wherein: The positioning threaded column (202) is flush with the upper end surface of the battery cover plate body (1), and the positioning threaded column (202) is tightly fastened with a fastening nut (203).

4. The recyclable secondary liquid injection battery cover plate of claim 1, wherein: The liquid injection hole column (3) is located below the fastening sealing plate (4), and the upper end of the liquid injection hole column (3) is provided with a protrusion clamped in the inner hole of the fastening sealing plate (4).

5. The recyclable secondary liquid injection battery cover plate of claim 1, wherein: The upper end of the fastening cover (5) is provided with an opening slot (501), and the upper end surface of the opening slot (501) is flush with the upper end surface of the fastening sealing plate (4).

6. The recyclable secondary liquid injection battery cover plate of claim 1, wherein: The sealing fastening washer (7) and the positioning threaded column (202) are also penetrated and matched, and the inner circle of the sealing fastening washer (7) is clamped and matched with the fastening cover (5).

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