Sound insulation device for power capacitor
By designing a power capacitor sound insulation device including a silence cavity, a sound guide tube and a bent silence plate, the problem of poor noise cancellation in the prior art is solved, and more effective noise reduction and environmental protection are achieved.
Patent Information
- Application Number
- CN202421037583.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The existing power capacitor sound insulation devices are not effective in noise cancellation and are prone to affect the external environment.
A sound insulation device including a capacitor body, a conductive column, a sound insulation protective case and a sound insulation assembly is designed. Through the structure of the sound insulation cavity, a connecting groove, a sound conductor, a bent sound insulation board and a sound insulation tiles, the noise flow path is extended and the noise flow path is effectively weakened.
By extending the noise flow path and using the bent silencer board to weaken the noise, the intensity of the noise is significantly reduced, the impact on the external environment is reduced, and the convenience of power capacitors is improved.
Smart Images
Figure CN222600750U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power capacitors, in particular to a sound insulation device for power capacitors. Background Art
[0002] A power capacitor is a capacitor used in power systems. Its main function is to provide reactive power to improve the quality of electric energy and increase transmission efficiency. Existing power capacitors will generate some noise during operation, so sound insulation devices are needed to reduce the noise of power capacitors.
[0003] The existing sound insulation device for power capacitors has a relatively simple design of internal noise elimination path during use, which cannot effectively eliminate noise and is easy to affect the external environment. Therefore, we propose a sound insulation device for power capacitors. Utility Model Content
[0004] The main purpose of the utility model is to provide a sound insulation device for a power capacitor, which can effectively solve the technical problems in the background technology.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a sound insulation device for a power capacitor, comprising a capacitor body, a conductive column is provided at the upper end of the capacitor body, a sound insulation protective shell is provided on the outside of the capacitor body, the sound insulation protective shell is sleeved on the outside of the capacitor body, the upper end of the conductive column extends to the outside of the sound insulation protective shell, a sound insulation cavity is provided inside the sound insulation protective shell, a connecting groove is provided at one end of the sound insulation cavity close to the capacitor body, a sound insulation component is provided inside the sound insulation cavity, a sound outlet is provided on the outer side of the sound insulation protective shell, and the sound outlet is communicated with the sound insulation cavity; the sound insulation component comprises a sound insulation board, the sound insulation board is fixedly connected to the sound insulation protective shell, a sound guide tube is provided at the position of the sound insulation board relative to the connecting groove, the opening of the sound guide tube faces the connecting groove, a guide plate is provided at one end of the sound insulation board, the guide plate is fixedly connected to the sound insulation protective shell, a sound insulation board is provided at one end of the guide plate, the sound insulation board is a zigzag hard board, the two ends of the sound insulation board are respectively fixedly connected to the diffusion hole and the sound insulation board, and a flow hole is provided inside the sound insulation board.
[0006] Preferably, the cavities on both sides of the silencer plate are connected through flow holes, and a circuitous flow channel is formed between two adjacent groups of flow holes.
[0007] Preferably, a diffusion hole is provided on the outer side surface of one end of the sound guide tube, and the diffusion hole is provided to facilitate the sound inside the sound guide tube to be transmitted to the inside of the silencer cavity.
[0008] Preferably, a silencer tile is provided inside the silencer cavity, and the silencer tile is installed between the silencer components. By providing the silencer tile, noise can be absorbed and the sound insulation effect can be improved.
[0009] Preferably, a limiting component is provided at the lower end of the sound insulation protective shell, and the limiting component includes a base, the base is threadedly connected to the sound insulation protective shell, an elastic block is provided at the upper end of the base, and a push plate is provided at the upper end of the elastic block. By setting the limiting component, the capacitor body can be prevented from shaking during operation.
[0010] Preferably, a sealing gasket is provided at one end of the push plate, and the outer surface of the sealing gasket is tightly fitted with the sound insulation protective shell. By providing the sealing gasket, the fit between the push plate and the capacitor body can be improved.
[0011] Beneficial Effects
[0012] The utility model provides a sound insulation device for a power capacitor, which has the following beneficial effects:
[0013] (1) The sound insulation device for the power capacitor can extend the flow path of the noise in the silencer chamber by setting a silencer component. When the noise passes through the flow hole and the bent silencer plate, the silencer plate can effectively weaken the noise, thereby reducing the intensity of the sound, reducing the impact on the external environment, and facilitating the use of the power capacitor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the implementation mode of the present utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below.
[0015] Figure 1 It is a schematic diagram of the overall cross section of the utility model;
[0016] Figure 2 It is a partial cross-sectional schematic diagram of the utility model;
[0017] Figure 3 For this utility model Figure 2 Enlarged schematic diagram at point A in the middle.
[0018] Legend:
[0019] 1. Capacitor body; 2. Conductive column; 3. Sound insulation protective shell; 4. Sound outlet hole; 5. Silence chamber; 6. Connecting groove; 7. Silence assembly; 8. Base; 9. Elastic block; 10. Push plate; 11. Sealing gasket; 12. Silence tile; 13. Sound insulation board; 14. Sound guide tube; 15. Diffusion hole; 16. Guide plate; 17. Silence board; 18. Flow hole. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] Embodiment 1: A sound insulation device for a power capacitor, such as Figure 1 - Figure 2 As shown, it includes a capacitor body 1, two groups of conductive columns 2 are arranged on the upper end of the capacitor body 1, the lower ends of the conductive columns 2 are fixedly connected to the capacitor body 1, the conductive columns 2 are electrically connected to the inside of the capacitor body 1, a sound insulation protective shell 3 is arranged on the outside of the capacitor body 1, a placement groove is arranged inside the sound insulation protective shell 3, the placement groove is adapted to the shape of the capacitor body 1, a card interface is arranged at the lower end of the placement groove, the sound insulation protective shell 3 is sleeved on the outside of the capacitor body 1, the upper ends of the conductive columns 2 extend to the outside of the sound insulation protective shell 3, a limiting component is arranged inside the card interface at the lower end of the sound insulation protective shell 3, the upper end of the limiting component is in contact with the capacitor body 1, and the limiting component can fix the capacitor body 1 inside the placement groove of the sound insulation protective shell 3, a muffler cavity 5 is arranged inside the sound insulation protective shell 3, and a connecting groove 6 is arranged at one end of the muffler cavity 5 close to the capacitor body 1, and the muffler cavity 5 is connected with the inside of the sound insulation protective shell 3 through the connecting groove 6. A silencer assembly 7 is provided in the center of the sound cavity 5, and a sound outlet hole 4 is provided on the outer side of the sound insulation protective shell 3, and the sound outlet hole 4 is connected with the inner cavity of the silencer cavity 5. A silencer tile 12 is provided inside the silencer cavity 5 between the silencer assembly 7 and the silencer assembly 7. The silencer tile 12 is an annular silencer plate, and the upper end of the silencer tile 12 is fixedly connected to the inner wall of the silencer cavity 5. The limiting assembly includes a base 8, and the base 8 is a circular plate. The base 8 is installed inside the sound insulation protective shell 3, and the base 8 is threadedly connected to the sound insulation protective shell 3. An elastic block 9 is provided on the upper end of the base 8, and the elastic block 9 is an elastic rubber column. The lower end of the elastic block 9 is fixedly connected to the base 8, and the upper end of the elastic block 9 is fixedly connected to the push plate 10. A sealing gasket 11 is provided at one end of the push plate 10 close to the capacitor body 1. The sealing gasket 11 is a soft rubber gasket, and the upper end of the sealing gasket 11 contacts the capacitor body 1, and the outer edge of the sealing gasket 11 is tightly fitted with the inner wall of the placement groove of the sound insulation protective shell 3.
[0022] Embodiment 2: A sound insulation device for a power capacitor, based on Embodiment 1 Figure 1 - Figure 3As shown, the sound insulation component 7 includes a sound insulation board 13, which is an annular hard board. The sound insulation board 13 is installed on one side of the sound insulation chamber 5 close to the connecting groove 6. The sound insulation board 13 divides the sound insulation chamber 5 into two cavities on the left and right. The upper and lower ends of the sound insulation board 13 are respectively fixedly connected to the sound insulation protective shell 3. A sound guide tube 14 is arranged at the center of the sound insulation board 13 relative to the connecting groove 6. The sound guide tube 14 is a hollow pipe. The opening of the sound guide tube 14 is arranged toward the connecting groove 6. A guide plate 16 is arranged at one end of the sound insulation board 13 away from the connecting groove 6. The guide plate 16 is an arc-shaped curved plate with an arc-shaped cross section. One end of the guide plate 16 is connected to the sound insulation board 13. The protective shell 3 is fixedly connected, and a plurality of diffusion holes 15 are circumferentially arranged on the outer side surface of one end of the sound guide tube 14 close to the guide plate 16. The diffusion holes 15 can facilitate the conduction of the noise inside the sound guide tube 14 to the inside of the silencer cavity 5. A silencer plate 17 is arranged on one end of the guide plate 16 close to the sound insulation plate 13. The silencer plate 17 is a zigzag hard plate. Both ends of the silencer plate 17 are respectively fixedly connected to the diffusion holes 15 and the sound insulation plate 13. A plurality of flow holes 18 are arranged inside the silencer plate 17. The cavities on both sides of the silencer plate 17 are interconnected through the flow holes 18, and a circuitous flow channel is formed between two adjacent groups of flow holes 18.
[0023] It should be noted that the utility model is a sound insulation device for power capacitors. When in use, the sound insulation protective shell 3 is first sleeved on the outside of the capacitor body 1, and the conductive column 2 at the upper end of the capacitor body 1 is leaked out of the upper end of the sound insulation protective shell 3. Then the limiting component is inserted into the placement groove, and then the base 8 is rotated. As the base 8 rotates, the elastic force of the elastic block 9 is used to push the push plate 10 to position the capacitor body 1 inside the sound insulation protective shell 3. The sealing gasket 11 can increase the sealing performance and make the upper end of the push plate 10 fit more closely with the capacitor body 1. The noise generated by the capacitor body 1 during operation will be transmitted to the inside of the sound guide tube 14 through the connecting groove 6, and diffused to the inside of the silencer cavity 5 through the sound guide tube 14. Then, it is guided by the guide plate 16 through the flow hole 18 and passes through multiple groups of bent silencer plates 17. The bending of the silencer plate 17 can weaken the sound. Finally, the sound passes through the silencer tile 12 and is discharged to the outside through the sound outlet hole 4. By providing the silencer assembly 7, the flow path of the noise inside the silencer chamber 5 can be extended. When the noise passes through the flow hole 18 and the bent silencer plate 17, the silencer plate 17 can effectively weaken the noise, thereby reducing the intensity of the sound, reducing the impact on the external environment, and facilitating the use of the power capacitor.
[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A soundproofing device for a power capacitor, comprising a capacitor body (1), a conductive column (2) being provided at the upper end of the capacitor body (1), a soundproofing protective shell (3) being provided outside the capacitor body (1), the soundproofing protective shell (3) being sleeved on the outside of the capacitor body (1), and the upper end of the conductive column (2) extending to the outside of the soundproofing protective shell (3), characterized in that: A soundproofing chamber (5) is provided inside the soundproofing protective shell (3); a connecting groove (6) is provided at one end of the soundproofing chamber (5) close to the capacitor body (1); a soundproofing assembly (7) is provided inside the soundproofing chamber (5); a sound outlet hole (4) is provided on the outer side of the soundproofing protective shell (3); the sound outlet hole (4) is connected to the soundproofing chamber (5); the soundproofing assembly (7) comprises a soundproofing plate (13); the soundproofing plate (13) is fixedly connected to the soundproofing protective shell (3); the soundproofing plate (13) is connected to the connecting groove (6) relative to the capacitor body (1). A sound guide tube (14) is provided at the position of the groove (6), the opening of the sound guide tube (14) faces the connecting groove (6), a guide plate (16) is provided at one end of the sound insulation board (13), the guide plate (16) is fixedly connected to the sound insulation protective shell (3), a sound-absorbing plate (17) is provided at one end of the guide plate (16), the sound-absorbing plate (17) is a zigzag hard plate, the two ends of the sound-absorbing plate (17) are respectively fixedly connected to the diffusion hole (15) and the sound insulation board (13), and a flow hole (18) is provided inside the sound-absorbing plate (17).
2. A sound insulation device for a power capacitor according to claim 1, characterized in that: The cavities on both sides of the muffler plate (17) are connected through the flow holes (18), and a circuitous flow channel is formed between two adjacent groups of flow holes (18).
3. A sound insulation device for a power capacitor according to claim 1, characterized in that: A diffusion hole (15) is provided on the outer side surface of one end of the sound guide tube (14).
4. A sound insulation device for a power capacitor according to claim 1, characterized in that: A sound-absorbing tile (12) is arranged inside the sound-absorbing chamber (5), and the sound-absorbing tile (12) is installed between the sound-absorbing components (7) and the sound-absorbing components (7).
5. A sound insulation device for a power capacitor according to claim 1, characterized in that: A limit assembly is provided at the lower end of the sound insulation protective shell (3), and the limit assembly comprises a base (8), the base (8) is threadedly connected to the sound insulation protective shell (3), an elastic block (9) is provided at the upper end of the base (8), and a push plate (10) is provided at the upper end of the elastic block (9).
6. A sound insulation device for a power capacitor according to claim 5, characterized in that: A sealing gasket (11) is provided at one end of the push plate (10), and the outer surface of the sealing gasket (11) is tightly fitted with the sound insulation protective shell (3).