Low-noise capacitor

Abstract

The utility model discloses a low noise capacitor, and specifically relates to the power capacitor technology field, comprising a capacitor housing, the left and right side walls of the capacitor housing are welded with connecting frames, the two connecting frames are internally provided with filter frames, the filter frames are connected with filter screens, the filter frames are symmetrically welded with two spacing seats, and the spacing seats are arranged on the two spacing seats. A connecting seat is welded on the surface of the capacitor shell, a sliding seat is movably arranged on the surface of the connecting seat in a penetrating mode, one end of the sliding seat is connected with a socket connected with the limiting seat in an inserted mode, and an extrusion spring is connected between the connecting seat and the sliding seat; through the arrangement of the structure, limiting mounting or dismounting cleaning of the filter frame and the filter screen can be rapidly and conveniently achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of power capacitor technology, and more specifically, to a low-noise capacitor. Background Technology

[0002] Power capacitors are used in power systems and electrical equipment. The capacitance of a capacitor is determined by its geometric dimensions and the characteristics of the insulating medium between the plates. When a capacitor is used under AC voltage, its capacity is often expressed in terms of its reactive power. However, existing devices have certain problems in use and still need to be continuously improved.

[0003] A search revealed that patent publication number CN221687320U discloses a low-noise power capacitor, comprising a low-noise power capacitor body and a capacitor housing disposed on the low-noise power capacitor body. The capacitor housing has placement slots on both the left and right sides, and filter plates are placed inside each slot. Each filter plate is embedded with a filter screen. The inner walls of the left and right sides of the capacitor housing have multiple first heat dissipation holes. Connecting plates are fixedly connected to the sides of the two filter plates away from the capacitor housing, and multiple second heat dissipation holes are formed on the opposite sides of the two connecting plates. The placement slots facilitate heat dissipation inside the capacitor housing, improving its heat dissipation effect and thus enhancing the performance of the low-noise power capacitor body. The filter screens prevent dust from entering the capacitor housing, improving its practicality. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] The device can block dust by setting up a filter screen during use, preventing dust from entering the inside of the capacitor shell. However, the filter screen is not easy to disassemble and clean. During long-term use, external dust will accumulate and adhere to the surface of the filter screen, which will cause the filter pores on the filter screen to become blocked, thus affecting the heat dissipation effect of the entire device.

[0005] Therefore, a low-noise capacitor is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a low-noise capacitor to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a low-noise capacitor, comprising a capacitor housing, connecting frames welded to the left and right side walls of the capacitor housing, filter frames disposed within each of the two connecting frames, filter screens connected to the filter frames, two limiting seats symmetrically welded to the filter frames, connecting seats welded to the surface of the capacitor housing, sliding seats movably passing through the surface of the connecting seats, a socket connected at one end of the sliding seats and engaging with the limiting seats, and a compression spring connected between the connecting seats and the sliding seats.

[0008] Preferably, a cover plate is bolted to the top of the capacitor housing, and a core package is disposed inside the capacitor housing, with two lead wires installed on the core package.

[0009] Preferably, a connecting ring is provided inside the capacitor casing and above the core package, and a rubber layer is provided on the connecting ring, with the two leads passing through the surface of the rubber layer.

[0010] Preferably, a base plate is provided directly below the capacitor casing, and a plurality of connecting rods are fixedly welded at equal intervals on the bottom wall of the capacitor casing. A damping spring is sleeved on the outside of the connecting rod, and the damping spring is located between the capacitor casing and the base plate.

[0011] Preferably, the bottom wall of the base plate is provided with a plurality of support legs arranged in a circular pattern, and a rubber pad is fixedly provided on the bottom wall of each of the support legs.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] Compared with existing technologies, the sliding seat and the compression spring are designed to work together so that one end of the compression spring pulls the sliding seat to move. The pulled sliding seat causes the socket to move closer to the limiting seat and engage with it. This achieves the limiting and fixing of the limiting seat and the filter frame and filter screen connected to the limiting seat. This structure allows for quick and convenient installation or disassembly and cleaning of the filter frame and filter screen, improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model.

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the three-dimensional structure at point A in the middle.

[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0017] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0018] The attached figures are labeled as follows: 1. Capacitor casing; 2. Cover plate; 3. Core package; 4. Lead wire; 5. Connecting ring; 6. Rubber layer; 7. Damping spring; 8. Connecting frame; 9. Filter frame; 10. Filter screen; 11. Limiting seat; 12. Socket; 13. Connecting seat; 14. Sliding seat; 15. Compression spring; 16. Base plate; 17. Support leg; 18. Connecting rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0020] As attached Figures 1 to 4 The low-noise capacitor shown includes a capacitor housing 1. Connecting frames 8 are welded to the left and right side walls of the capacitor housing 1. Filter frames 9 are provided in both connecting frames 8. Filter screens 10 are connected to the filter frames 9. Two limiting seats 11 are symmetrically welded to the filter frames 9. Connecting seats 13 are welded to the surface of the capacitor housing 1. A sliding seat 14 is movably inserted through the surface of the connecting seat 13. One end of the sliding seat 14 is connected to a socket 12 that engages with the limiting seat 11. A compression spring 15 is connected between the connecting seat 13 and the sliding seat 14.

[0021] In use, the device requires two people to pull the two sliding seats 14. The two sliding seats 14 then move the two sockets 12, thereby disengaging the two sockets 12 from the limiting seat 11. Then, by pulling the limiting seat 11, the filter frame 9 and filter screen 10 can be removed from both sides of the capacitor housing 1. The dust adhering to the surface of the filter screen 10 can then be brushed off. This structure allows for quick and convenient installation or disassembly and cleaning of the filter frame 9 and filter screen 10, improving the practicality of the device. Example 2

[0022] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0023] In a preferred embodiment, a cover plate 2 is bolted to the top of the capacitor casing 1. Then, a core package 3 is provided inside the capacitor casing 1, and two lead wires 4 are installed on the core package 3. At the same time, a connecting ring 5 is provided inside the capacitor casing 1 and above the core package 3. A rubber layer 6 is provided on the connecting ring 5, and the two lead wires 4 pass through the surface of the rubber layer 6. The rubber layer 6 can be placed through the connecting ring 5, and the two lead wires 4 can be limited by the setting of the rubber layer 6.

[0024] In a preferred embodiment, a base plate 16 is provided directly below the capacitor housing 1. Then, several connecting rods 18 are fixedly welded at equal intervals on the bottom wall of the capacitor housing 1. A damping spring 7 is then sleeved on the outside of the connecting rods 18, and the damping spring 7 is located between the capacitor housing 1 and the base plate 16. Several support legs 17 are arranged in a circular pattern on the bottom wall of the base plate 16. Finally, a rubber pad is fixedly installed on the bottom wall of each support leg 17. Furthermore, when current passes through the conductor in the device, it will cause the capacitor housing 1 to vibrate. The damping spring 7 can effectively alleviate the vibration transmission of the capacitor housing 1, thereby playing a certain role in noise reduction of the device.

[0025] The working process of this utility model is as follows: First, when the current passes through the conductor in the device, it will cause the capacitor shell 1 to vibrate. Then, by setting the damping spring 7, the vibration transmission of the capacitor shell 1 can be effectively reduced, thereby playing a certain noise reduction role in the device.

[0026] When the filter frame 9 and filter screen 10 need to be disassembled and cleaned, two people can pull the two sliding seats 14 respectively. This movement of the two sliding seats 14 will then move the two sockets 12, disengaging them from the locking seat 11. The filter frame 9 and filter screen 10 can then be removed from both sides of the capacitor housing 1 by pulling the locking seat 11. The dust adhering to the surface of the filter screen 10 can then be brushed off. After cleaning, the filter frame 9 and filter screen 10 can be placed back into the connecting frame 8. Then, the sliding seat 14 is released. At this time, one end of the compression spring 15 pulls the sliding seat 14 to move. The pulled sliding seat 14 drives the socket 12 to move closer to the limiting seat 11 and engage with the limiting seat 11, thereby limiting and fixing the limiting seat 11 and the filter frame 9 and filter screen 10 connected to the limiting seat 11. This structure can quickly and conveniently realize the limiting installation or disassembly and cleaning of the filter frame 9 and filter screen 10, improving the practicality of the device. The above is the working principle of this low noise capacitor.

Claims

1. A low noise capacitor comprising a capacitor housing (1), characterized in that: The capacitor shell (1) left and right side wall welding has the connecting frame (8), two connecting frame (8) all is provided with the filter frame (9), the filter frame (9) is connected and is provided with the filter screen (10), the filter frame (9) is symmetrically welded with two limit seat (11), the capacitor shell (1) surface welding has the connecting seat (13), the connecting seat (13) surface mobilely is provided with the sliding seat (14), the sliding seat (14) one end is connected with the socket (12) and is inserted into the limit seat (11) and is connected, the connecting seat (13) and sliding seat (14) between connection is provided with extrusion spring (15).

2. A low noise capacitor as claimed in claim 1, characterized in that: The capacitor shell (1) top bolt connection has the cover plate (2), the capacitor shell (1) is provided with the core package (3), the core package (3) is installed with two lead-out wires (4).

3. A low noise capacitor as claimed in claim 2, characterized in that: The capacitor shell (1) in and located above the core package (3) is provided with the connecting ring (5), the connecting ring (5) is provided with rubber layer (6), two lead-out wires (4) are provided through the rubber layer (6) surface.

4. A low noise capacitor as claimed in claim 1, characterized in that: The capacitor shell (1) is provided below the bottom plate (16), the capacitor shell (1) bottom wall equidistant fixed welding has a plurality of connecting rods (18), the connecting rod (18) outside is provided with the damping spring (7), the damping spring (7) is located between the capacitor shell (1) and the bottom plate (16).

5. A low noise capacitor as claimed in claim 4, characterized in that: The bottom plate (16) bottom wall is circularly distributed and is provided with a plurality of support legs (17), a plurality of support legs (17) bottom wall are all fixedly provided with a rubber pad.

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