CN219916939U

CN219916939U - Noise reduction device for filter capacitor

Info

Publication number: CN219916939U
Application number: CN202321665339.4U
Authority: CN
Inventors: 汪忠良; 董雪; 杨武
Original assignee: Tongling Liyang Electronics Co ltd
Current assignee: Tongling Liyang Electronics Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-10-27
Anticipated expiration: 2033-06-28

Abstract

The utility model discloses a noise reduction device for a filter capacitor, in particular to the field of capacitor noise reduction, which comprises a bottom plate, wherein a frame is fixedly arranged on the top surface of the bottom plate, a filter capacitor body is arranged in the frame, a partition plate is vertically arranged in the frame, a support plate is horizontally arranged in the middle of the partition plate, and the filter capacitor body is distributed in a space separated by the partition plate and the support plate; the surface of the filter capacitor is fixedly provided with a fixing frame with a U-shaped structure, and the bottom end of the fixing frame is provided with two groups of clamping structures; the inner bottom surface of the frame and the supporting plate are fixedly provided with buffer blocks; the top surface of the frame is provided with a top plate. The cotton block and the sound insulation felt arranged on the fixing frame can play a role in sound insulation, noise generated by vibration of the filter capacitor body is absorbed, and the buffer block and the elastic rod arranged on the fixing frame can play a role in buffering when the filter capacitor body shakes due to vibration, so that the generated noise can be weakened.

Description

Noise reduction device for filter capacitor

Technical Field

The utility model relates to the technical field of capacitor noise reduction, in particular to a filter capacitor noise reduction device.

Background

The filter capacitor is an energy storage device and is commonly used at two ends of the rectifying circuit, so that the alternating current ripple coefficient can be reduced, and the effect of improving the efficient smooth direct current output is achieved.

At present, a plurality of filter capacitors are generally combined and placed on a capacitor tower, and are installed in a boundary area of a converter station for use, and noise is generated due to vibration generated when the capacitors work, and the noise affects the normal operation of the converter station. Therefore, we make improvements to this and propose a filter capacitor noise reduction device.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a noise reduction device of a filter capacitor, which comprises a bottom plate, wherein a frame is fixedly arranged on the top surface of the bottom plate, a filter capacitor body is arranged in the frame, a partition plate is vertically arranged in the frame, a supporting plate is horizontally arranged in the middle of the partition plate, and the filter capacitor body is distributed in a space separated by the partition plate and the supporting plate; the surface of the filter capacitor is fixedly provided with a fixing frame with a U-shaped structure, and the bottom end of the fixing frame is provided with two groups of clamping structures; buffer blocks are fixedly arranged on the inner bottom surface of the frame and the supporting plate; the top surface of the frame is provided with a top plate.

As a preferable technical scheme of the utility model, the clamping structure is a clamping rod which is obliquely arranged; the clamping grooves are formed in the two sides of the buffer block in a penetrating mode, and the sizes of the clamping grooves are larger than those of the clamping rods.

As a preferable technical scheme of the utility model, the middle part of the buffer block is provided with a buffer layer, and the buffer layer is composed of rubber.

As a preferable technical scheme of the utility model, elastic rods are arranged on the inner wall of the frame and the side wall of the partition board, and clamping blocks are fixedly arranged at the other ends of the elastic rods through connecting plates; a clamping groove is formed in the side wall of the filter capacitor, and the clamping block is clamped with the clamping groove.

As a preferable technical scheme of the utility model, a cotton block is fixedly arranged in the middle of the fixing frame, and a sound insulation felt is adhered to two sides of the cotton block.

As a preferable technical scheme of the utility model, the top surface of the frame is provided with the grooves, the bottom end of the top plate is symmetrically provided with the clamping plates, the clamping plates are clamped in the grooves, and the two ends of the top plate are fixedly arranged with the top surface of the frame through the fastening bolts.

The beneficial effects of the utility model are as follows: the cotton piece and the sound insulation felt that set up on the mount can play the sound insulation effect, absorb the noise that filter capacitor body produced because of the vibration, and buffer block and the elastic rod that set up can play the cushioning effect when filter capacitor body rocks because of the vibration, can weaken the noise that produces equally.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of a filter capacitor noise reduction device of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic diagram of a partial structure of a noise reduction device of a filter capacitor according to the present utility model.

In the figure: 1. a bottom plate; 2. a frame; 3. a top plate; 4. a partition plate; 5. a support plate; 6. a filter capacitor body; 7. a clamping groove; 8. a fixing frame; 9. an elastic rod; 10. a clamping block; 11. a buffer block; 12. cotton block; 13. a sound-insulating felt; 14. a clamping plate; 15. a fastening bolt; 16. a buffer layer; 17. a clamping rod; 18. a clamping groove.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples: as shown in fig. 1 to 3, the noise reduction device for the filter capacitor of the utility model comprises a bottom plate 1, wherein a frame 2 is fixedly arranged on the top surface of the bottom plate 1, a filter capacitor body 6 is arranged in the frame 2, a partition plate 4 is vertically arranged in the frame 2, a supporting plate 5 is horizontally arranged in the middle of the partition plate 4, and the filter capacitor body 6 is distributed in a space separated by the partition plate 4 and the supporting plate 5. The filter capacitor body 6 can be limited by the frame 2, the partition plate 4 and the support plate 5.

The surface of the filter capacitor is fixedly provided with a fixing frame 8 with a U-shaped structure, and the bottom end of the fixing frame 8 is provided with two groups of clamping structures; the fixing frame can be limited through the clamping structure, so that the filter capacitor body 6 is limited. The buffer blocks 11 are fixedly arranged on the inner bottom surface of the frame 2 and the supporting plate 5; the buffer block 11 can play a role of buffering when the filter capacitor body 6 vibrates.

The top surface of frame 2 is provided with roof 3, and the top surface of frame 2 is seted up flutedly, and the bottom symmetry of roof 3 is provided with cardboard 14, cardboard 14 joint in the recess, and the both ends of roof 3 pass through fastening bolt 15 and the top surface fixed setting of frame 2. The top plate 3 is convenient to detach through the fastening bolts 15, and the clamping plate 14 and the groove are clamped and connected to play a role in guiding, so that the top plate 3 is located at a fixed position. Baffle blocks are fixedly arranged on the inner wall of the frame 2 and the partition plate 4, and are positioned at the bottom of the supporting plate 5 and provide supporting effect for the supporting plate 5.

The clamping structure is a clamping rod 17 which is obliquely arranged; the two sides of the buffer block 11 are provided with clamping grooves 7 in a penetrating way, and the sizes of the clamping grooves 7 are larger than those of the clamping rods 17. The clamping rod 17 can be clamped into the clamping groove 7 along with the downward movement of the fixing frame 8, so that the effect of enhancing stability is achieved.

The middle part of the buffer block 11 is provided with a buffer layer 16, and the buffer layer 16 is composed of rubber. When the filter capacitor body 6 is stressed and vibrates, downward force can be generated to squeeze the buffer block 11, and the buffer layer 16 on the buffer block 11 can be stressed and contracted, so that a buffer effect is achieved, and meanwhile, a damping effect can be achieved.

Elastic rods 9 are arranged on the inner wall of the frame 2 and the side wall of the partition plate 4, and clamping blocks 10 are fixedly arranged at the other ends of the elastic rods 9 through connecting plates; the side wall of the filter capacitor is provided with a clamping groove 7, and a clamping block 10 is clamped with the clamping groove 7. When the filter capacitor body 6 is placed in the frame 2, the filter capacitor body 6 can be limited by clamping the clamping block 10 and the clamping groove 7, so that the stability is enhanced.

The middle part of mount 8 is fixed and is provided with cotton piece 12, and the both sides of cotton piece 12 all paste and have sound insulation felt 13. The cotton block 12 and the sound insulation felt 13 can absorb noise generated by the filter capacitor body 6 due to vibration, thereby playing a role in noise reduction.

During operation, the cotton block 12 and the sound insulation felt 13 arranged on the fixing frame 8 can play a role in sound insulation, noise generated by vibration of the filter capacitor body 6 is absorbed, and the buffer block 11 and the elastic rod 9 can play a role in buffering when the filter capacitor body 6 shakes due to vibration, so that the generated noise can be weakened.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The noise reduction device of the filter capacitor comprises a bottom plate (1), wherein a frame (2) is fixedly arranged on the top surface of the bottom plate (1), and a filter capacitor body (6) is arranged in the frame (2), and is characterized in that a partition plate (4) is vertically arranged in the frame (2), a supporting plate (5) is horizontally arranged in the middle of the partition plate (4), and the filter capacitor body (6) is distributed in a space separated by the partition plate (4) and the supporting plate (5); the surface of the filter capacitor is fixedly provided with a fixing frame (8) with a U-shaped structure, and the bottom end of the fixing frame (8) is provided with two groups of clamping structures; the inner bottom surface of the frame (2) and the supporting plate (5) are fixedly provided with buffer blocks (11); the top surface of the frame (2) is provided with a top plate (3).

2. A filter capacitor noise reduction device according to claim 1, characterized in that the clamping structure is a clamping rod (17) arranged obliquely; clamping grooves (7) are formed in the two sides of the buffer block (11) in a penetrating mode, and the sizes of the clamping grooves (7) are larger than those of the clamping rods (17).

3. A filter capacitor noise reduction device according to claim 1, characterized in that the middle part of the buffer block (11) is provided with a buffer layer (16), the buffer layer (16) being composed of rubber.

4. The noise reduction device of the filter capacitor according to claim 1, wherein elastic rods (9) are arranged on the inner wall of the frame (2) and the side wall of the partition plate (4), and clamping blocks (10) are fixedly arranged at the other ends of the elastic rods (9) through connecting plates; a clamping groove (7) is formed in the side wall of the filter capacitor, and the clamping block (10) is clamped with the clamping groove (7).

5. The noise reduction device of the filter capacitor according to claim 1, wherein a cotton block (12) is fixedly arranged in the middle of the fixing frame (8), and a sound insulation felt (13) is adhered to two sides of the cotton block (12).

6. The noise reduction device for the filter capacitor according to claim 1, wherein the top surface of the frame (2) is provided with a groove, clamping plates (14) are symmetrically arranged at the bottom end of the top plate (3), the clamping plates (14) are clamped in the groove, and two ends of the top plate (3) are fixedly arranged with the top surface of the frame (2) through fastening bolts (15).