Improved safety valve for a sealed battery

Abstract

The utility model provides a kind of safety valve of improved sealing storage battery, including valve body, the valve body is set through up and down, and the lower part and upper part of valve body are provided with lower gas filter piece and upper gas filter piece respectively, the lower part side wall of valve body is provided with several buckling members, and the side of buckling member is spiral structure, the lower part of valve body is provided with sealing ring with sleeve joint, the upper end of sealing ring is equipped with spring, and the upper end of spring is against the upper edge of valve body. The utility model, spring is arranged in the upper end of sealing ring, and lower gas filter piece and upper gas filter piece are arranged, ensure the sealing property after installation, improve battery safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of storage battery technology, and in particular to a safety valve for an improved sealed storage battery. Background Technology

[0002] Lead-acid batteries are currently the most widely used, safest, and most stable battery products in the world. VRLA batteries are widely used due to their environmental friendliness, ease of maintenance, and long lifespan. Zhongda Mi batteries, as the main type of VRLA battery, are particularly popular in the market, primarily used in UPS backup power, communication base stations, and emergency power supply in remote areas. Improving production efficiency and reducing labor costs during battery manufacturing has become a key concern.

[0003] During use, lead-acid batteries generate gas inside, which needs to be released through a safety valve to prevent dangerous situations such as explosions caused by excessive internal pressure. However, existing lead-acid battery safety valves are not airtight, making them prone to gas leakage or the entry of outside air into the battery. This not only affects the battery's performance and lifespan but may also pose safety hazards. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses an improved safety valve for a sealed storage battery, comprising a valve body that extends vertically through the battery, with a lower air filter and an upper air filter respectively disposed at the lower and upper parts of the valve body. The lower and upper air filters are commonly used components in the venting structure of storage batteries, enabling ventilation while trapping acidic substances and particles.

[0005] The lower sidewall of the valve body is provided with several fastening components, one side of which has a spiral structure. A sealing ring is fitted onto the lower part of the valve body, and a spring is provided at the upper end of the sealing ring. The upper end of the spring abuts against the upper edge of the valve body. During installation, the structure of the pre-set through hole in the battery housing and the fastening components cooperates. After the safety valve is screwed into the through hole, the sealing ring is pressed, achieving a seal between the battery housing and the valve body. However, after long-term use, the sealing ring ages and shrinks, resulting in poor sealing performance. The spring provided here ensures that the sealing ring can fit tightly against the battery housing, improving the durability of the seal.

[0006] Preferably, a valve base is provided at the lower end of the valve body, and the side wall of the valve base is provided with several openings at equal angles. Gas inside the battery casing enters the interior of the valve body through the openings.

[0007] Preferably, the lower end of the valve body is provided with several latches, the ends of which fit into pre-set latching grooves inside the valve base. The latches and latching grooves connect the valve body and the valve base. In addition, a latching groove is provided in the lower part of the valve body, and a groove is provided on the upper inner wall of the valve base to further improve the stability of both.

[0008] Preferably, a valve cover and an upper cover are respectively provided above and below the upper filter plate, and both the valve cover and the upper cover are provided with through holes. The edge of the valve cover fits inside the valve body. The valve cover and the upper cover are used for limiting and fixing the upper filter plate.

[0009] Preferably, a cover is provided on the upper part of the valve body, and a plurality of connecting rods are provided on the lower end of the cover, and the connecting rods are inserted and fixed in the pre-set holes on the upper end of the valve body. The connecting rods are connected by an interference fit, and the lower end of the cover abuts against the upper end of the upper cover plate to achieve axial limiting. In addition, the cover and the upper cover plate are provided with a gap for air overflow.

[0010] The beneficial effects of this utility model are as follows: 1. It is equipped with a spring and a sealing ring. The spring ensures that the sealing ring and the battery casing fit together, which improves the long-term sealing effect between the safety valve and the battery casing, thereby improving the battery safety and reliability.

[0011] 2. It is equipped with a lower filter and an upper filter, with two filters in place, which can ensure gas escape while trapping solid particles generated during battery operation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the present invention.

[0013] List of reference numerals in the attached diagram: 1. Valve base; 2. Opening; 3. Fastening element; 4. Valve body; 5. Sealing ring; 6. Protective cover; 7. Lower filter plate; 8. Spring; 9. Valve cover plate; 10. Upper filter plate; 11. Upper cover plate; 12. Fastening rod; 13. Connecting rod. Detailed Implementation

[0014] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0015] like Figures 1 to 3 As shown, an improved safety valve for a sealed battery includes a valve body 4, which is arranged vertically and horizontally with a multi-diameter through-channel. The lower and upper parts of the valve body 4 are respectively provided with a lower filter plate 7 and an upper filter plate 10 for gas dissipation.

[0016] The lower side wall of the valve body 4 is provided with several fastening parts 3, and one side of the fastening part 3 has a spiral structure. When the safety valve is in use, the battery shell through hole that it cooperates with has a pre-set structure that cooperates with the fastening part 3. The safety valve is fixed on the battery shell by means of the two structures. A sealing ring 5 is sleeved on the lower part of the valve body 4. After the safety valve is installed, its sealing ring 5 is pressed on the battery shell for sealing. A spring 8 is provided at the upper end of the sealing ring 5. The upper end of the spring 8 abuts against the upper edge of the valve body 4. Under long-term use, problems such as shrinkage and aging of the sealing ring 5 may occur, affecting the seal. The spring 8 provided in this method ensures that the sealing ring 5 can stay in contact with the battery shell by pressing the sealing ring 5, thereby improving the durability of the seal.

[0017] A valve base 1 is provided at the lower end of the valve body 4. The valve base 1 is provided to protect the lower filter plate 7. Several openings 2 are provided at equal angles on the side wall of the valve base 1 to allow gas to pass through.

[0018] The lower end of the valve body 4 is provided with several latch rods 12. The ends of the latch rods 12 are fitted into the latch grooves preset inside the valve base 1. Through the structure of the latch rods 12 and the latch grooves, the valve body 4 and the valve base 1 are fixedly connected.

[0019] A valve cover plate 9 and an upper cover plate 11 are respectively provided above and below the upper filter plate 10. The two limit and fix the upper filter plate 10. Both the valve cover plate 9 and the upper cover plate 11 are provided with through holes, which are used for gas escaping. The edge of the valve cover plate 9 fits inside the valve body 4.

[0020] A cover 6 is provided on the upper part of the valve body 4, and several connecting rods 13 are provided on the lower end of the cover 6. The connecting rods 13 are inserted and fixed in the pre-set holes on the upper part of the valve body 4. The connecting rods 13 fix the cover 6 by interference fit.

[0021] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A safety valve for an improved sealed storage battery, characterized in that, Includes a valve body (4), which is arranged vertically, and the lower part and the upper part of the valve body (4) are respectively provided with a lower air filter (7) and an upper air filter (10). The lower side wall of the valve body (4) is provided with several fastening parts (3), and one side of the fastening part (3) is a spiral structure. A sealing ring (5) is sleeved on the lower part of the valve body (4), and a spring (8) is provided at the upper end of the sealing ring (5). The upper end of the spring (8) abuts against the upper edge of the valve body (4).

2. The safety valve for an improved sealed storage battery according to claim 1, characterized in that: The lower end of the valve body (4) is provided with a valve base (1), and the side wall of the valve base (1) is provided with several openings (2) at equal angles.

3. The safety valve for an improved sealed storage battery according to claim 2, characterized in that: The lower end of the valve body (4) is provided with several latches (12), and the ends of the latches (12) are fitted into the latches grooves preset inside the valve base (1).

4. The safety valve for an improved sealed storage battery according to claim 1, characterized in that: The upper filter plate (10) is provided with a valve cover plate (9) and an upper cover plate (11) on its upper and lower sides respectively. Both the valve cover plate (9) and the upper cover plate (11) are provided with through holes. The edge of the valve cover plate (9) fits inside the valve body (4).

5. The safety valve for an improved sealed storage battery according to claim 1, characterized in that: A cover (6) is provided on the upper part of the valve body (4), and a number of connecting rods (13) are provided at the lower end of the cover (6), and the connecting rods (13) are inserted and fixed in the pre-set holes at the upper end of the valve body (4).

Images