Battery explosion-proof liquid injection cover

Abstract

The utility model belongs to battery cover technical field especially is battery explosion -proof liquid injection cover, including battery cover body, the top of battery cover body is fixed with the top cover, the middle part of top cover is equipped with the liquid injection port, the below of battery cover body is provided with battery shell, the inside fixed of battery shell has explosion -proof inner shell, The both sides of battery cover body are equipped with exhaust port, the inside fixed of exhaust port has the heat dissipation net surface, one end movable mounting of exhaust port has the plugging rotary plate, the one side fixed connection of plugging rotary plate top has explosion -proof motor, the battery body is isolated with battery shell through explosion -proof inner shell in this application, and explosion -proof inner shell is metal corrosion -resistant material and can resist electrolyte penetration mechanical protection, when the battery internal pressure increases, through explosion -proof inner shell and battery cover body can play a certain protective effect, and explosion -proof motor drives plugging rotary plate to rotate and can open exhaust port, that is, can carry out pressure relief and accelerate heat dissipation through the heat dissipation net surface.

Description

Technical Field

[0001] This utility model belongs to the field of battery cover technology, specifically relating to an explosion-proof electrolyte filling cover for storage batteries. Background Technology

[0002] A battery filler cap is a cap used to seal the battery filler hole. It is usually made of plastic or metal and has the functions of sealing and preventing acid mist.

[0003] Existing battery filler caps lack explosion-proof structures. When a short circuit or other abnormal situation occurs inside the battery, a large amount of heat and gas will be generated, causing the internal pressure to rise sharply. If the pressure cannot be released in time, it may cause an explosion due to excessive internal pressure. Therefore, we propose an explosion-proof battery filler cap. Utility Model Content

[0004] To address the issue raised in the background that existing battery filler caps lack explosion-proof structures, leading to a surge in internal pressure due to heat and gas generation during short circuits or other abnormal conditions, potentially causing an explosion if the pressure cannot be released promptly, this invention provides an explosion-proof battery filler cap.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery explosion-proof liquid filling cover, including a battery cover body, a top cover fixed above the battery cover body, a liquid filling port opened in the middle of the top cover, a battery shell provided below the battery cover body, and an explosion-proof inner shell fixed inside the battery shell.

[0006] Both sides of the battery cover body are provided with vents. A heat dissipation mesh is fixed inside the vent. A sealing rotating plate is movably installed at one end of the vent. An explosion-proof motor is fixedly connected to one side above the sealing rotating plate.

[0007] As a preferred embodiment of the explosion-proof battery filling cap of this utility model, the battery body is housed inside the explosion-proof inner shell, and the explosion-proof inner shell and the battery body form a semi-enclosed structure.

[0008] As a preferred embodiment of the explosion-proof liquid filling cover for the battery of this utility model, both sides of the top cover are fixed with positioning posts, and fixing bolts are provided at the connection between the positioning posts and the battery shell.

[0009] As a preferred embodiment of the explosion-proof liquid filling cover for the battery of this utility model, the liquid filling port corresponds to the position of the battery body, a sealing plug is installed inside the liquid filling port, a limit post is installed above the sealing plug, and a positioning screw is installed at the connection between the limit post and the top cover.

[0010] As a preferred embodiment of the explosion-proof liquid filling cover for the battery of this utility model, the vents are symmetrically distributed about the vertical center line of the battery cover body, and the heat dissipation mesh surface is a hollow mesh structure.

[0011] In a preferred embodiment of the present invention, the explosion-proof battery filling cover has a rotating structure between the explosion-proof motor and the sealing rotating plate, and the size of the sealing rotating plate matches that of the vent.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this application, the battery body is isolated from the battery casing by an explosion-proof inner shell. The explosion-proof inner shell is made of metal corrosion-resistant material, which can resist electrolyte penetration and provide mechanical protection. When the internal air pressure of the battery increases, the explosion-proof inner shell and the battery cover body can play a certain protective role. The explosion-proof motor drives the sealing plate to rotate, which can open the exhaust port, so that the pressure can be released and the heat dissipation mesh can be accelerated to prevent the problem of excessive internal pressure of the battery leading to explosion in case of failure. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the external structure of the battery cover of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the battery cover of this utility model;

[0017] Figure 4 This is a side view of the battery cover of this utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the battery cover and battery casing of this utility model.

[0019] In the diagram: 1. Battery cover body; 2. Top cover; 3. Liquid inlet; 4. Sealing plug; 5. Limiting post; 6. Positioning screw; 7. Positioning post; 8. Fixing bolt; 9. Vent; 10. Heat dissipation mesh; 11. Sealing rotating plate; 12. Explosion-proof motor; 13. Battery casing; 14. Explosion-proof inner casing; 15. Battery body. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] like Figures 1-5 As shown;

[0023] The battery explosion-proof liquid filling cap includes a battery cover body 1, a top cover 2 fixed on the top of the battery cover body 1, a liquid filling port 3 opened in the middle of the top cover 2, a battery shell 13 provided below the battery cover body 1, and an explosion-proof inner shell 14 fixed inside the battery shell 13.

[0024] Both sides of the battery cover body 1 are provided with exhaust ports 9. A heat dissipation mesh 10 is fixed inside the exhaust port 9. A sealing rotating plate 11 is movably installed at one end of the exhaust port 9. An explosion-proof motor 12 is fixedly connected to one side above the sealing rotating plate 11.

[0025] In this implementation scheme: the battery body 15 is isolated from the battery casing 13 by the explosion-proof inner shell 14. The explosion-proof inner shell 14 is made of metal corrosion-resistant material to resist electrolyte penetration and mechanical protection. When the internal air pressure of the battery increases, the explosion-proof inner shell 14 and the battery cover body 1 can play a certain protective role. The explosion-proof motor 12 drives the sealing plate 11 to rotate, which can open the exhaust port 9, so that the pressure can be released and the heat dissipation mesh 10 can be accelerated to prevent the problem of excessive internal pressure of the battery leading to explosion in case of failure.

[0026] Furthermore:

[0027] In an optional embodiment, the explosion-proof inner shell 14 houses the battery body 15, and the explosion-proof inner shell 14 and the battery body 15 form a semi-enclosed structure.

[0028] In this implementation scheme: the explosion-proof inner shell 14 isolates the battery body 15 from the battery casing 13. The explosion-proof inner shell 14 is made of metal corrosion-resistant material and can resist electrolyte penetration and mechanical protection. When the internal air pressure of the battery increases, the explosion-proof inner shell 14 and the battery cover body 1 can play a certain protective role.

[0029] Furthermore:

[0030] In an optional embodiment, positioning posts 7 are fixed on both sides of the top cover 2, and fixing bolts 8 are provided at the connection between the positioning posts 7 and the battery casing 13.

[0031] In this implementation scheme, fixing bolts 8 can be used to fix the battery casing 13 and the positioning stake 7 to each other, which facilitates the installation of the battery.

[0032] Furthermore:

[0033] In an optional embodiment, the liquid injection port 3 corresponds to the position of the battery body 15, a sealing plug 4 is installed inside the liquid injection port 3, a limit post 5 is installed above the sealing plug 4, and a positioning screw 6 is installed at the connection between the limit post 5 and the top cover 2.

[0034] In this implementation plan: the injection port 3 adopts a threaded locking structure of sealing plug 4 and limiting post 5 to achieve a dual protection system. While maintaining the electrolyte sealing, it can be quickly disassembled and assembled through positioning screw 6.

[0035] Furthermore:

[0036] In an optional embodiment, the exhaust ports 9 are symmetrically distributed about the vertical center line of the battery cover body 1, and the heat dissipation mesh 10 is a hollow mesh structure.

[0037] In this implementation plan, pressure is relieved and heat dissipation is accelerated through the heat dissipation mesh 10.

[0038] Furthermore:

[0039] In an optional embodiment, the explosion-proof motor 12 and the sealing rotating plate 11 form a rotating structure, and the sealing rotating plate 11 is matched with the size of the exhaust port 9.

[0040] In this implementation plan: the explosion-proof motor 12 can drive the sealing plate 11 to rotate and open the exhaust port 9.

[0041] Working principle: First, the battery cover body 1 and battery shell 13 are connected and installed. The battery body 15 is placed inside the battery shell 13, and then the fixing bolts 8 are used to fix the battery shell 13 and the positioning stake 7. Next, the battery body 15 is isolated from the battery shell 13 by the explosion-proof inner shell 14. The explosion-proof inner shell 14 is made of metal corrosion-resistant material and can resist electrolyte penetration and mechanical protection. When the internal pressure of the battery increases, the explosion-proof inner shell 14 and the battery cover body 1 can play a certain protective role. Then, when the battery malfunctions or is abnormal, the pressure detector installed on the battery transmits the data to the alarm. The pressure detector is a pressure sensor of model HDP500 in the existing technology. It uses piezoelectric ceramic as the sensitive element. When pressure is applied to the piezoelectric material, an electric charge signal is generated. The amount of charge is proportional to the pressure value. The pressure signal is transmitted through a ratio The comparator compares the input signal with a preset voltage reference. When the input signal exceeds the threshold, the switching circuit is triggered. Accurate alarm is achieved through physical signal conversion, intelligent threshold judgment, and multi-mode response mechanism. The alarm is a sound and light alarm of model 7090 produced by Wenzhou Haoli Traffic Facilities Co., Ltd. After the alarm sounds, it can remind the staff and then start the explosion-proof motor 12. The explosion-proof motor 12 is an ordinary motor in the prior art. It is equipped with an explosion-proof shell to achieve the explosion-proof effect. The explosion-proof motor 12 drives the sealing plate 11 to rotate and open the exhaust port 9, so that the pressure can be released and the heat dissipation mesh 10 can be accelerated. Finally, the liquid injection port 3 adopts a threaded locking structure of sealing plug 4 and limit post 5 to achieve a double protection system. While maintaining the sealing of the electrolyte, it can be quickly disassembled and assembled through the positioning screw 6.

[0042] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A battery explosion-proof filler cap, comprising a battery cap body (1), characterized in that: A top cover (2) is fixed above the battery cover body (1), and an injection port (3) is opened in the middle of the top cover (2). A battery shell (13) is provided below the battery cover body (1), and an explosion-proof inner shell (14) is fixed inside the battery shell (13). The battery cover body (1) has exhaust ports (9) on both sides. A heat dissipation mesh (10) is fixed inside the exhaust port (9). A sealing rotating plate (11) is movably installed at one end of the exhaust port (9). An explosion-proof motor (12) is fixedly connected to one side above the sealing rotating plate (11).

2. The battery explosion-proof filler cap according to claim 1, characterized in that: The explosion-proof inner shell (14) houses the battery body (15), and the explosion-proof inner shell (14) and the battery body (15) form a semi-enclosed structure.

3. The battery explosion-proof filler cap according to claim 1, characterized in that: Positioning stakes (7) are fixed on both sides of the top cover (2), and fixing bolts (8) are provided at the connection between the positioning stakes (7) and the battery shell (13).

4. The battery explosion-proof filler cap according to claim 2, characterized in that: The position of the liquid injection port (3) corresponds to that of the battery body (15). A sealing plug (4) is installed inside the liquid injection port (3). A limit post (5) is installed above the sealing plug (4). A positioning screw (6) is installed at the connection between the limit post (5) and the top cover (2).

5. The battery explosion-proof filler cap according to claim 1, characterized in that: The exhaust ports (9) are symmetrically distributed about the vertical center line of the battery cover body (1), and the heat dissipation mesh (10) is a hollow mesh structure.

6. The battery explosion-proof filler cap according to claim 1, characterized in that: The explosion-proof motor (12) and the sealing rotating plate (11) form a rotating structure, and the size of the sealing rotating plate (11) matches that of the exhaust port (9).

Images