Sealing valve control type lead acid battery safety valve pressure value detection device

Abstract

The utility model discloses a sealing valve control type lead acid battery safety valve pressure value detection device which comprises an air chamber, a pressure gauge arranged at the top end of the air chamber, a safety valve base with an upward opening arranged at the top end of the air chamber, and a safety valve to be detected fixedly connected on the pressure gauge and the safety valve base. When the real-time air pressure value in the air chamber exceeds the valve opening pressure upper limit value of the safety valve, the valve of the safety valve is automatically opened for pressure relief, and when the real-time air pressure value in the air chamber is lower than the valve closing pressure lower limit value of the safety valve, the valve of the safety valve is automatically closed. An air inlet of the pressure air chamber is connected with a first end of an air hose, and a second end of the air hose is connected with inflation equipment. According to the utility model, the opening and closing of the safety valve is matched with the pressure gauge to detect the air pressure value in the air outlet chamber so as to determine the opening and closing limit value of the safety valve, and the detection method is simple, novel and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure monitoring, in particular to a sealed valve-controlled lead-acid battery safety valve pressure value detection device. Background Art

[0002] Sealed valve-regulated lead-acid batteries (SVLRBL) are the most widely used type of lead-acid battery, widely used in energy storage, power supply, and UPS applications. The safety valve used in these batteries is a critical component that impacts their performance and safety. This safety valve controls the internal pressure of a SVLRBL battery within a specified range. When pressure becomes excessive, the pressure relief valve opens, allowing some gas to escape. Once the pressure falls within the specified range, the valve automatically closes. If the opening pressure of the pressure relief valve is too high, the accumulated pressure inside the battery can cause a gas explosion. However, if the opening pressure is too low or the closing pressure is too low, the battery loses water, further accelerating its failure. Therefore, controlling the opening and closing pressures of the battery safety valve is a crucial component of production management for these batteries.

[0003] To ensure safe and efficient battery operation, existing technologies primarily monitor and manage battery status through a battery management module (BMM). These modules primarily monitor battery voltage, temperature, charge and discharge current, and insulation, but lack the ability to quickly monitor the battery's safety valve. Utility Model Content

[0004] In order to solve the technical problems mentioned in the background technology, the utility model provides a device for detecting the pressure value of a safety valve of a sealed valve-regulated lead-acid battery.

[0005] The utility model adopts the following technical solution: a sealed valve-regulated lead-acid battery safety valve pressure value detection device, comprising an air chamber; a pressure gauge is arranged at the top of the air chamber; the pressure gauge is sealed and connected to the air chamber by a fastening bolt; a safety valve base with an opening facing upward is arranged at the top of the air chamber; the pressure gauge, the safety valve base and the air chamber are connected; the pressure gauge is used to obtain the real-time air pressure value in the air chamber; the safety valve to be tested is fixedly connected to the safety valve base; the valve port of the safety valve to be tested corresponds to the opening of the safety valve base, when the real-time air pressure value in the air chamber exceeds the upper limit value of the opening pressure of the safety valve, the valve of the safety valve automatically opens to release the pressure; when the real-time air pressure value in the air chamber is lower than the lower limit value of the closing pressure of the safety valve, the valve of the safety valve automatically closes; the air inlet of the pressure air chamber is connected to the first end of the air supply hose; the second end of the air supply hose is connected to the inflation device.

[0006] Furthermore, the air cavity is installed on the bottom plate; both sides of the air cavity are fixedly connected to the upper surface of the bottom plate through a plurality of air cavity reinforcement ribs.

[0007] Furthermore, a filter mesh surface is provided at the opening of the safety valve base.

[0008] Furthermore, the inflation device is an inflatable airbag.

[0009] Compared with the prior art, the advantages of the present invention are:

[0010] The utility model designs a sealed valve-regulated lead-acid battery safety valve pressure value detection device, which detects the air pressure value in the air chamber by opening and closing the safety valve in conjunction with a pressure gauge to determine the limit value of the safety valve opening and closing valve. The detection method is simple, novel and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the overall structure of the sealed valve-regulated lead-acid battery safety valve pressure value detection device.

[0012] in:

[0013] 1-air chamber, 2-pressure gauge, 3-gas hose, 4-inflating equipment, 5-safety valve to be tested, 6-safety valve base, 7-air chamber reinforcement rib, 8-bottom plate, 9-filter surface. DETAILED DESCRIPTION

[0014] In order to facilitate those skilled in the art to understand the technical solution of the present invention, the following is further described with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0015] In the following detailed description, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the present invention.

[0016] Please refer to Figure 1, is a schematic diagram of the overall structure of a sealed valve-regulated lead-acid battery safety valve pressure detection device according to the present invention. The device comprises an air chamber 1, with a pressure gauge 2 disposed at the top of the air chamber 1, which is sealed to the air chamber 1 via fastening bolts. A safety valve base 6, with an upward opening, is disposed at the top of the air chamber 1, with a filter screen 9 disposed at the opening of the safety valve base 6. The pressure gauge 2 and the safety valve base 6 are in communication with the air chamber 1. The pressure gauge 2 is used to obtain the real-time air pressure within the air chamber 1. A safety valve 5 to be tested is fixedly connected to the safety valve base 6, with the valve opening of the safety valve base 6 corresponding to the opening of the safety valve base 6. When the real-time air pressure within the air chamber 1 exceeds the upper limit of the valve opening pressure of the safety valve 5 to be tested, the valve of the safety valve 5 to be tested automatically opens to release pressure. When the real-time air pressure within the air chamber 1 falls below the lower limit of the valve closing pressure of the safety valve 5 to be tested, the valve of the safety valve 5 to be tested automatically closes. The air inlet of the air chamber 1 is connected to the first end of a gas hose 3, and the second end of the gas hose 3 is connected to an inflation device 4. In a specific implementation, the inflation device 4 is an inflatable airbag. This embodiment uses the inflatable airbag to draw external air into the air chamber 1 and continuously pressurize the air in the air chamber 1 through the inflatable airbag. When the pressure in the air chamber 1 reaches the valve opening pressure of the safety valve 5 to be tested, the air release valve of the safety valve 5 to be tested will open, and the pressure inside the air chamber 1 will decrease. The highest point that the pointer of the pressure gauge 2 can reach is the valve opening pressure value of the safety valve 5 to be tested. When the pressure gauge 2 drops to a certain level and remains there, the value indicated by the pressure gauge 2 is the valve closing pressure value of the safety valve 5.

[0017] During the specific implementation of this embodiment, in order to ensure the installation strength of the air chamber 1, the air chamber 1 is installed on the bottom plate 8, and the two sides of the air chamber 1 are fixedly connected to the upper surface of the bottom plate 8 through multiple air chamber reinforcement ribs 7.

[0018] In summary, the sealed valve-regulated lead-acid battery safety valve pressure value detection device designed in the present invention detects the air pressure value in the air chamber by opening and closing the safety valve in conjunction with a pressure gauge to determine the limit value of the safety valve opening and closing valve. The detection method is simple, novel and fast.

[0019] The above embodiments are merely descriptions of preferred implementation methods of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A sealed valve-regulated lead-acid battery safety valve pressure value detection device, characterized in that: The invention comprises an air chamber (1); a pressure gauge (2) is provided at the top of the air chamber (1); the pressure gauge (2) is sealed and connected to the air chamber (1) by fastening bolts; a safety valve base (6) with an upward opening is provided at the top of the air chamber (1); the pressure gauge (2), the safety valve base (6) and the air chamber (1) are connected; the pressure gauge (2) is used to obtain the real-time air pressure value in the air chamber (1); the safety valve (5) to be tested is fixedly connected to the safety valve base (6); the valve port of the safety valve (5) to be tested is connected to the safety valve (5) to be tested. The opening of the full valve base (6) corresponds to that when the real-time air pressure value in the air chamber (1) exceeds the upper limit value of the valve opening pressure of the safety valve to be tested (5), the valve of the safety valve to be tested (5) automatically opens to release the pressure; when the real-time air pressure value in the air chamber (1) is lower than the lower limit value of the valve closing pressure of the safety valve to be tested (5), the valve of the safety valve to be tested (5) automatically closes; the air inlet of the air chamber (1) is connected to the first end of the air supply hose (3); the second end of the air supply hose (3) is connected to the inflation device (4).

2. The device for detecting the safety valve pressure value of a sealed valve-regulated lead-acid battery according to claim 1, characterized in that: The air chamber (1) is mounted on a base plate (8); both sides of the air chamber (1) are fixedly connected to the upper surface of the base plate (8) via a plurality of air chamber reinforcement ribs (7).

3. The device for detecting the safety valve pressure value of a sealed valve-regulated lead-acid battery according to claim 2, characterized in that: A filter screen (9) is provided at the opening of the safety valve base (6).

4. The device for detecting the safety valve pressure value of a sealed valve-regulated lead-acid battery according to claim 3, characterized in that: The inflation device (4) is an inflatable airbag.

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