Valve regulated maintenance free lead-acid battery central exhaust structure

Abstract

The utility model discloses a kind of valve control maintenance-free lead-acid battery centralized exhaust structure, it belongs to lead-acid battery field, and it is formed with a centralized exhaust passage in explosion-proof power supply device by T-shaped tee structure designed in the top of safety valve, realizes the centralized exhaust function of lead-acid battery, solves the problem that gas is easily accumulated inside explosion-proof power supply device, greatly improves the safety performance of power supply device. It mainly includes valve body, the bottom of the valve body is equipped with S-shaped structure, opening one is opened in the valve body above S-shaped structure, rubber cap is slidably arranged on the side wall of opening one, a plurality of air holes are arranged on the side wall of opening one, filter device three is further arranged in opening one, filter device two is further arranged in the valve body above rubber cap, valve cover is arranged on the top of valve body, opening two is arranged in the middle position of valve cover, filter device one is arranged in opening two, cylindrical apron is arranged on the valve cover of opening two. The utility model is mainly used for the centralized exhaust of lead-acid battery.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid batteries, and more specifically, to a centralized venting structure for valve-regulated maintenance-free lead-acid batteries. Background Technology

[0002] Currently, the explosion-proof power supply device for mining electric locomotives is mainly composed of lead-acid batteries. Due to the requirements of the working environment, the explosion-proof power supply device must have extremely high safety. Therefore, vent holes are designed on the explosion-proof power supply device box to diffuse the gas generated inside the power supply device to the outside of the box. However, this design has the problem of untimely and incomplete venting. Some gas will still accumulate inside the power supply device, which will affect the safety performance of the power supply device. At the same time, due to the influence of the working environment, dust is easy to accumulate on the surface of the safety valve of ordinary lead-acid batteries, which makes it difficult for the gas inside the battery to be discharged, thus affecting the safety of the power supply device. Utility Model Content

[0003] The purpose of this utility model is to provide a centralized venting structure for valve-controlled maintenance-free lead-acid batteries. Through the T-shaped three-way structure designed on the top of the safety valve, a centralized venting channel is formed inside the explosion-proof power supply device using an explosion-proof hose, realizing the centralized venting function of lead-acid batteries, solving the problem of gas accumulation inside the explosion-proof power supply device, and greatly improving the safety performance of the power supply device.

[0004] This utility model is achieved through the following technical solution:

[0005] A valve-controlled maintenance-free lead-acid battery centralized venting structure includes a valve body. The bottom of the valve body has an S-shaped structure. An opening 1 is opened in the valve body above the S-shaped structure. A rubber cap is slidably mounted on the side wall of the opening 1. Several air holes are provided on the side wall of the opening 1. A filter device 3 is also provided in the opening 1. A filter device 2 is also provided in the valve body above the rubber cap. A valve cover is provided on the top of the valve body. An opening 2 is provided in the middle of the valve cover. The filter device 1 is provided in the opening 2. A cylindrical platform is provided on the valve cover at the opening 2. A tee is inserted into the cylindrical platform. The tee is connected by an explosion-proof hose.

[0006] Furthermore, the S-shaped structure includes baffle one and baffle two, which face each other toward the inner wall of the opening at the bottom of the valve body to form an S-shaped rotation space.

[0007] Furthermore, the valve cover and valve body are connected by a hinge.

[0008] Furthermore, the tee is a T-type tee.

[0009] Furthermore, it also includes several lead-acid batteries. The bottom outer wall of the valve body is provided with threads, and the several lead-acid batteries are all installed on the valve body through the threads. The tee valves on the top of the several valve bodies are connected to each other through explosion-proof hoses.

[0010] Furthermore, a gasket is provided between the valve body and the lead-acid battery casing.

[0011] Furthermore, the filter device one, filter device two, and filter device three are all air filter plates.

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

[0013] 1. By using the T-shaped three-way structure designed on the top of the safety valve, a centralized exhaust channel is formed inside the explosion-proof power supply device using an explosion-proof hose, realizing the centralized exhaust function of lead-acid batteries, solving the problem of gas accumulation inside the explosion-proof power supply device, and greatly improving the safety performance of the power supply device.

[0014] 2. This solves the problem that foreign objects can clog the safety valve during the use of explosion-proof power supply devices, thus limiting the valve's venting function and affecting the safety of the power supply device.

[0015] 3. The S-shaped baffle can effectively prevent impurities in the electrolyte of lead-acid batteries from clogging the gas filter and thus affecting the venting function of the safety valve. The gas generated inside the battery passes through three gas filters, which can retain the moisture carried in the gas to the greatest extent and extend the service life of lead-acid batteries. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection of the explosion-proof flexible hose of this utility model.

[0019] In the diagram: 101, baffle plate one; 102, baffle plate two; 2, valve body; 3, rubber cap; 4, thread; 5, gasket; 601, filter device one; 602, filter device two; 603, filter device three; 7, cylindrical platform; 8, tee; 9, valve cover; 10, hinge; 11, vent. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 – Figure 3As shown in Embodiment 1, a centralized venting structure for a valve-controlled maintenance-free lead-acid battery includes a valve body 2. The bottom of the valve body 2 has an S-shaped structure 1. An opening 1 is provided inside the valve body 2 above the S-shaped structure 1. A rubber cap 3 is slidably mounted on the side wall of the opening 1. Several air holes 11 are provided on the side wall of the opening 1. A filter device 3 603 is also provided inside the opening 1. A filter device 2 602 is also provided inside the valve body 2 above the rubber cap 3. A valve cover 9 is provided at the top of the valve body 2. An opening 2 is provided in the middle of the valve cover 9. A filter device 1 601 is provided inside the opening 2. A cylindrical platform 7 is provided on the valve cover 9 at the opening 2. A tee 8 is inserted into the cylindrical platform 7. Two slots are provided inside the cylindrical platform 7. Two sealing rings are provided vertically between the cylindrical platform 7 and the tee 8 to form a seal, preventing gas from escaping from the installation position of the tee 8 during the venting process. The tee 8 is connected via an explosion-proof hose.

[0022] Example 2: A centralized venting structure for a valve-regulated maintenance-free lead-acid battery. The S-shaped structure 1 includes a first baffle 101 and a second baffle 102, which face the inner wall of the opening at the bottom of the valve body 2, forming an S-shaped rotation space. This effectively prevents impurities in the lead-acid battery electrolyte from clogging the filter and thus affecting the venting function of the safety valve. The valve cover 9 and the valve body 2 are connected by a hinge 10. The tee 8 is a T-type tee. The structure also includes several lead-acid batteries. The bottom outer wall of the valve body 2 is provided with threads 4, and the several lead-acid batteries are all installed on the valve body 2 through the threads 4. Several valve bodies 2 have three-way valves 8 on top connected to each other via explosion-proof hoses; a gasket 5 is also provided between the valve body 2 and the lead-acid battery casing to prevent gas generated inside the battery from escaping through the valve body 2 of the safety valve and the liquid injection port; the filter devices 601, 602 and 603 are all gas filters, and three gas filters are provided inside the valve body 2 of the safety valve and on the valve cover 9. The gas generated during battery use passes through the S-shaped structure 1 and then through the three gas filters, which can retain the moisture carried in the gas to the greatest extent and extend the service life of the lead-acid battery. The rest is the same as in Example 1.

[0023] The safety valve opens at a pressure of 5 kPa. When the gas pressure inside the battery exceeds 5 kPa after passing through the first filter, the cap 3 inside the valve body 2 is pushed upwards a certain distance, and the gas is discharged from the vent 11 (after the gas is discharged, the cap 3 falls down, and is pushed up again when the gas pressure exceeds 5 kPa). It then passes through two more filters and through the centralized exhaust channel at the top of the safety valve, which is composed of a three-way structure, to the outside of the explosion-proof power supply unit housing, effectively preventing gas accumulation inside the power supply unit. The T-shaped three-way 8 is 15 mm high, and the left and right outlets adopt a double-layer anti-detachment design (existing technology), with a maximum diameter of 7 mm, allowing for the installation of explosion-proof hoses with an inner diameter of 6 mm.

[0024] Install the centralized venting safety valve onto the lead-acid battery filling port. Rotate the valve body 2 of the safety valve, and during the rotation, squeeze the gasket 5 on the valve body 2 to form a seal with the battery cover filling port. Then, vertically insert the T-shaped tee 8 into the cylindrical support 7 on the upper cover of the safety valve. According to the battery arrangement and the distance between individual batteries in the power unit, cut the explosion-proof hose to a suitable length and install it on the left and right outlets of the T-shaped tee 8. All individual batteries form a series structure through the explosion-proof hose. After the connection is completed, the explosion-proof hose extends 500mm out of the power unit housing. Insert an explosion-proof plug into the end of the explosion-proof hose to prevent external gas from entering the venting channel formed by the explosion-proof hose.

Claims

1. A centralized venting structure for a valve-regulated maintenance-free lead-acid battery, comprising a valve body (2), characterized in that: The valve body (2) has an S-shaped structure (1) at the bottom. An opening (1) is provided in the valve body (2) above the S-shaped structure (1). A rubber cap (3) is slidably provided on the side wall of the opening. Several air holes (11) are provided on the side wall of the opening. A filter device (3) (603) is also provided in the opening. A filter device (2) (602) is also provided in the valve body (2) above the rubber cap (3). A valve cover (9) is provided at the top of the valve body (2). An opening (2) is provided in the middle of the valve cover (9). A filter device (1) (601) is provided in the opening. A cylindrical platform (7) is provided on the valve cover (9) at the opening. A tee (8) is inserted in the cylindrical platform (7). The tee (8) is connected by an explosion-proof hose.

2. The centralized venting structure for valve-regulated maintenance-free lead-acid batteries according to claim 1, characterized in that: The S-shaped structure (1) includes a first baffle (101) and a second baffle (102). The first baffle (101) and the second baffle (102) face each other to the inner wall of the opening at the bottom of the valve body (2) to form an S-shaped rotation space.

3. The centralized venting structure for valve-regulated maintenance-free lead-acid batteries according to claim 1, characterized in that: The valve cover (9) and valve body (2) are connected by a hinge (10).

4. The centralized venting structure for valve-regulated maintenance-free lead-acid batteries according to claim 1, characterized in that: The tee (8) mentioned above is a T-type tee.

5. The centralized venting structure for valve-regulated maintenance-free lead-acid batteries according to claim 1, characterized in that: It also includes several lead-acid batteries. The bottom outer wall of the valve body (2) is provided with threads (4). Several lead-acid batteries are installed on the valve body (2) through threads (4). The tee (8) on the top of several valve bodies (2) are connected to each other through explosion-proof hoses.

6. The centralized venting structure for valve-regulated maintenance-free lead-acid batteries according to claim 5, characterized in that: A gasket (5) is also provided between the valve body (2) and the lead-acid battery casing.

7. The centralized venting structure for valve-regulated maintenance-free lead-acid batteries according to claim 1, characterized in that: The filter device one (601), filter device two (602) and filter device three (603) are all air filter plates.

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