Dedicated pressure release valve for capacitor

Abstract

A pressure release valve special for a capacitor comprises a spring (1), a valve body (2), a fastening nut (3), an O-shaped ring (4), a lower pressing block (5), an upper pressing block (6), an elastic pressing sheet (7) and a sealing gasket (8). Wherein the sealing gasket (8) is placed at the bottom of the interior of the valve body (2), and the lower pressing block (5) is placed on the sealing gasket (8); an elastic pressing sheet (7) is arranged at the top in the valve body (2), and an upper pressing block (6) is arranged below the elastic pressing sheet (7); and a spring (1) is arranged between the lower pressing block (5) and the upper pressing block (6). Through reasonable layout and design, all parts are connected more tightly, the leakage problem caused by loosening of the parts is reduced, and the overall sealing performance is improved.

Description

Capacitor-specific pressure relief valve Technical Field

[0001] This utility model relates to the field of capacitor technology, and in particular to a pressure relief valve specifically for capacitors. Background Technology

[0002] A capacitor pressure relief valve is a safety device installed on a capacitor, primarily used to protect the capacitor in abnormal conditions. The following is a detailed description:

[0003] Working principle: During operation, various factors (such as internal faults, overvoltage, overheating, etc.) may cause the internal pressure of a capacitor to rise. When the pressure exceeds a certain threshold, the pressure relief valve will automatically open to release the gas or liquid inside the capacitor, thereby reducing the internal pressure and preventing the capacitor from exploding or other serious safety accidents.

[0004] Structural Features: Generally, capacitor pressure relief valves consist of a valve body, valve core, and spring. The valve body is the outer shell of the pressure relief valve, usually made of metal, possessing a certain strength and sealing performance. The valve core is the component that controls the opening and closing of the pressure relief passage. It remains closed under the action of the spring. When the internal pressure reaches a set value, the valve core moves upward against the spring force, opening the pressure relief passage. The spring provides the force to keep the valve core closed and adjusts the opening pressure of the pressure relief valve as needed.

[0005] Functions: Ensuring Safety: This is the primary function of a pressure relief valve. It prevents capacitors from rupturing or exploding due to excessive internal pressure, protecting equipment and personnel. For example, in a power system, if a capacitor malfunctions and causes a rapid increase in internal pressure, the timely activation of the pressure relief valve can prevent the accident from escalating and causing serious damage to the entire power system. Extending Capacitor Lifespan: During normal operation, the internal pressure of a capacitor remains within a certain range. When the pressure abnormally increases, it can damage the internal structure and insulation materials of the capacitor, affecting its performance and lifespan. By releasing pressure in a timely manner, the pressure relief valve helps maintain the normal operating environment inside the capacitor, reducing damage caused by abnormal pressure and thus extending its service life.

[0006] However, traditional capacitor pressure relief valves have some problems, such as unstable sealing performance under high pressure environments, or leakage due to loose parts during use. To solve these problems, this invention proposes a capacitor-specific pressure relief valve with better sealing performance and stability. Summary of the Invention

[0007] In order to solve the problems existing in the prior art, the present invention provides a pressure relief valve for capacitors.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] A capacitor-specific pressure relief valve includes a spring 1, a valve body 2, a fastening nut 3, an O-ring 4, a lower pressure block 5, an upper pressure block 6, an elastic pressure plate 7, and a sealing gasket 8; wherein: the sealing gasket 8 is placed at the bottom inside the valve body 2, and the lower pressure block 5 is placed on the sealing gasket 8; the elastic pressure plate 7 is placed at the top inside the valve body 2, and the upper pressure block 6 is placed below the elastic pressure plate 7; the spring 1 is placed between the lower pressure block 5 and the upper pressure block 6.

[0010] This utility model also has the following additional technical features:

[0011] As a further specific optimization of the technical solution of this utility model: a fastening nut 3 is threadedly connected to the bottom outer side of the valve body 2, and the valve body 2 is fixed to the box by the fastening nut 3.

[0012] As a further specific optimization of the technical solution of this utility model: a sealing ring groove is provided on the outer side of the middle part of the valve body 2, and an O-ring 4 is placed in the sealing ring groove.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] More compact structure: Through reasonable layout and design, the connection between various components is tighter, reducing leakage problems caused by loose components and improving the overall sealing performance.

[0015] More stable sealing performance: The dual sealing design of gasket 8 and O-ring 4 ensures a stable sealing effect even under high pressure, effectively preventing gas or liquid leakage.

[0016] Installation and maintenance are more convenient: the valve body 2 is fixed to the box by tightening the nut 3, which not only makes installation quick and easy, but also facilitates subsequent maintenance and replacement.

[0017] Longer service life: The capacitor-specific pressure relief valve of this utility model is manufactured with high-quality materials and advanced technology, and has high wear resistance and corrosion resistance. It can operate stably for a long time in harsh working environments, thus extending its service life. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the structure of this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Spring; 2. Valve body; 3. Fastening nut; 4. O-ring; 5. Lower pressure block; 6. Upper pressure block; 7. Elastic pressure plate; and 8. Sealing gasket. Detailed Implementation

[0020] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0021] This capacitor-specific pressure relief valve comprises a series of meticulously designed components, including a spring 1, valve body 2, fastening nut 3, O-ring 4, lower pressure block 5, upper pressure block 6, elastic pressure plate 7, and sealing gasket 8. The sealing gasket 8 is specifically designed to house the sealing gasket 8 at the bottom interior of the valve body 2, which is located below the lower pressure block 5. Simultaneously, the elastic pressure plate 7 is located at the top interior of the valve body 2, with the upper pressure block 6 positioned below it. Notably, a spring 1 is cleverly placed between the lower pressure block 5 and the upper pressure block 6 to ensure the proper functioning of the entire pressure relief valve.

[0022] In addition, the bottom outer side of the valve body 2 is connected to the fastening nut 3 by threads. This design allows the valve body 2 to be firmly fixed to the housing by the fastening nut 3, thereby ensuring the stability and safety of the pressure relief valve in the capacitor.

[0023] To further ensure sealing performance, a sealing groove is specially provided on the outer side of the middle part of the valve body 2, in which an O-ring 4 is placed. As a highly efficient sealing element, the O-ring 4 can effectively prevent gas or liquid from leaking from the outside of the valve body 2 during pressure relief, thereby ensuring the sealing performance and reliability of the pressure relief valve.

[0024] How to use a capacitor-specific pressure relief valve:

[0025] The pressure relief valve uses the elastic force of spring 1 to regulate the opening and closing of the valve. Valve body 2 is fixed to the housing by a fastening nut 3. After the fastening nut 3 is tightened, the O-ring 4 undergoes elastic deformation, ensuring the sealing of valve body 2. When the pressure inside the chamber exceeds a preset threshold, the gas pressure overcomes the elastic force of spring 1, pushing the lower pressure block 5 upward, causing the valve to open and releasing excess gas pressure. Conversely, when the pressure inside the chamber drops below the set value, the elastic force of spring 1 causes the lower pressure block 5 to move downward, closing the valve and preventing further gas leakage.

[0026] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

Claims

1. A pressure relief valve for capacitors, characterized by: It includes a spring (1), a valve body (2), a fastening nut (3), an O-ring (4), a lower pressure block (5), an upper pressure block (6), an elastic pressure plate (7), and a sealing gasket (8); wherein: a sealing gasket (8) is placed at the bottom inside the valve body (2), and a lower pressure block (5) is placed on the sealing gasket (8); an elastic pressure plate (7) is placed at the top inside the valve body (2), and an upper pressure block (6) is placed below the elastic pressure plate (7); a spring (1) is placed between the lower pressure block (5) and the upper pressure block (6).

2. The pressure relief valve for a capacitor as defined in claim 1, wherein: The bottom outer side of the valve body (2) is connected to a fastening nut (3) by a thread, and the valve body (2) is fixed to the box by the fastening nut (3).

3. The capacitor-specific pressure relief valve according to claim 1, characterized in that: A sealing groove is provided on the outer side of the middle part of the valve body (2), and an O-ring (4) is placed in the sealing groove.

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