Noise and vibration reduction device of filter capacitor

Abstract

The utility model discloses a noise reduction and vibration attenuation device of a filter capacitor, which comprises a first noise reduction mechanism and a second noise reduction mechanism, the first noise reduction mechanism is detachably arranged at one end of a filter capacitor main body, and the second noise reduction mechanism is fixedly arranged at the other end of the filter capacitor main body. The first noise reduction mechanism comprises a mounting frame and a first noise reduction layer arranged on the inner wall of the mounting frame, the mounting frame is of a frame structure with openings in the two faces, and the second noise reduction mechanism comprises a bottom support and a second noise reduction layer arranged in the bottom support. According to the utility model, the first noise reduction mechanism and the second noise reduction mechanism are respectively arranged at the top and the bottom of the filter capacitor main body, so that noise sources at the top and the bottom of the filter capacitor main body can be greatly reduced, the operation noise of the filter capacitor main body is greatly reduced, and vibration generated during operation of the filter capacitor main body is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter capacitors, in particular to a noise reduction and vibration reduction device for filter capacitors. Background Art

[0002] Filter capacitors are suitable for voltage filtering in electronic rectifiers, such as computers, televisions, switching power supplies in a series of electrical appliances, electronic ballasts, etc. They are made of metallized polyester, polypropylene filter materials, and zinc-aluminum base micron materials.

[0003] The noise of filter capacitor equipment is one of the main sources of noise in converter stations. Managing it is an important way to meet factory boundary noise standards, and is of great significance to protecting the environment and people's lives. The noise source of filter capacitor equipment is mainly the change of electromagnetic field between capacitor terminals, which causes air disturbance and generates electromagnetic noise. Continuous noise has a huge impact on the surrounding environment. Utility Model Content

[0004] The utility model aims to solve at least one problem existing in the prior art. To this end, the purpose of the utility model is to provide a noise reduction and vibration reduction device, which reduces the noise generated by the wave capacitor when it works, so that the noise is within an acceptable range.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A noise reduction and vibration reduction device for a filter capacitor includes a first noise reduction mechanism and a second noise reduction mechanism, wherein the first noise reduction mechanism is detachably mounted on one end of a filter capacitor body, and the second noise reduction mechanism is fixedly mounted on the other end of the filter capacitor body, the first noise reduction mechanism includes a mounting frame and a first noise reduction layer arranged on the inner wall of the mounting frame, the mounting frame is a frame structure with openings on both sides, and the second noise reduction mechanism includes a base and a second noise reduction layer arranged in the base.

[0007] Further on the basis of the above scheme, the first noise reduction layer is a multi-layer structure, including a first noise reduction layer one, an intermediate layer and a first noise reduction layer two, the first noise reduction layer two is bonded to the inner wall of the mounting frame, the intermediate layer is bonded to the first noise reduction layer two, and the first noise reduction layer one is bonded to the intermediate layer.

[0008] Further on the basis of the above solution, the second noise reduction layer is a single-layer structure.

[0009] Further on the basis of the above scheme, a plurality of plug-ins are arranged at the bottom of the mounting frame, an outer edge is arranged at the top of the filter capacitor body, a plurality of plug-in holes are arranged on the outer edge, and the plug-in holes are adapted to the plug-ins.

[0010] Further on the basis of the above scheme, a plurality of threaded holes are arranged on the outer edge side wall, the threaded holes are connected with the insert holes, and hand-tightened bolts are installed in the threaded holes.

[0011] Further on the basis of the above scheme, the base is a frame structure with two sides open, a first shelf is arranged inside the base, and the filter capacitor body is installed on the first shelf.

[0012] Further on the basis of the above solution, a second shelf is arranged inside the base, the second shelf is located below the first shelf, and the second noise reduction layer is installed on the second shelf.

[0013] Further on the basis of the above scheme, the thickness of the first noise reduction layer is 15 mm, wherein the first noise reduction layer 1 is 6 mm, the middle layer is 3 mm, the first noise reduction layer 2 is 6 mm, and the thickness of the second noise reduction layer is 10 mm.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model arranges a first noise reduction mechanism and a second noise reduction mechanism on the top and bottom of the filter capacitor body respectively, which can greatly reduce the noise sources on the top and bottom of the filter capacitor body, thereby greatly reducing the operating noise of the filter capacitor body, and also reduces the vibration generated when the filter capacitor body is running. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the noise reduction and vibration reduction device of the utility model filter capacitor;

[0017] Figure 2 This is a three-dimensional diagram of the main body of the filter capacitor of the utility model;

[0018] Figure 3 This is a cross-sectional view of the first noise reduction mechanism of the utility model;

[0019] Figure 4 It is a cross-sectional view of the second noise reduction mechanism of the utility model.

[0020] In the figure: 1. first noise reduction mechanism, 11. mounting frame, 111. plug, 12. first noise reduction layer, 121. first noise reduction layer one, 122. middle layer, 123. first noise reduction layer two, 2. second noise reduction mechanism, 21. bottom support, 211. first shelf, 212. second shelf, 22. second noise reduction layer, 3. filter capacitor body, 31. outer edge, 311. plug hole, 4. hand-tightened bolts. DETAILED DESCRIPTION

[0021] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0022] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which the utility model belongs. The words "one" or "one" and the like used in the specification and claims of this application do not indicate a quantitative limitation, but indicate the existence of at least one. "Multiple" includes two, which is equivalent to at least two. "Including" or "including" and the like mean that the elements or objects appearing in front of "including" or "including" include the elements or objects listed after "including" or "including" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms of "one", "said" and "the" used in the specification and the appended claims of this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0023] Embodiment 1:

[0024] Please refer to Figure 1-3 A noise reduction and vibration reduction device for a filter capacitor includes a first noise reduction mechanism 1, which is detachably mounted on one end of a filter capacitor body 3. The first noise reduction mechanism 1 includes a mounting frame 11 and a first noise reduction layer 12 arranged on the inner wall of the mounting frame 11. The mounting frame 11 is a frame structure with openings on both sides. The mounting frame 11 does not completely wrap the terminals of the filter capacitor body 3, and does not reduce the heat dissipation capacity of the filter capacitor body 3. The first noise reduction layer 12 is a multi-layer structure, including a first noise reduction layer 1 121, an intermediate layer 122 and a first noise reduction layer 2 123. The first noise reduction layer 2 123 is bonded to the inner wall of the mounting frame 11, the intermediate layer 122 is bonded to the first noise reduction layer 2 123, and the first noise reduction layer 1 121 is bonded to the intermediate layer 122.

[0025] In this embodiment, the first noise reduction layer 121, the middle layer 122 and the first noise reduction layer 2 123 are glued together, the first noise reduction layer 121 and the first noise reduction layer 2 123 are both made of porous sound-absorbing cotton, and the middle layer 122 is made of polyethylene rubber plate. The first noise reduction layer 121 and the first noise reduction layer 2 123 can absorb the noise generated when the filter capacitor body 3 is working, thereby achieving the effect of sound absorption, noise reduction and shock absorption.

[0026] Preferably, the thickness of the first noise reduction layer 12 is 15 mm, wherein the first noise reduction layer 1 121 is 6 mm, the middle layer 122 is 3 mm, and the first noise reduction layer 2 123 is 6 mm. It is understandable that the thickness of the first noise reduction layer 12 can be selected independently according to actual needs.

[0027] Furthermore, in order to facilitate the installation of the mounting frame 11, six plug-in plates 111 are provided at the bottom of the mounting frame 11, and an outer edge 31 is provided at the top of the filter capacitor body 3, and six plug-in holes 311 are provided on the outer edge 31. The plug-in holes 311 are adapted to the plug-in plates 111, and the plug-in plates 111 can be inserted into the plug-in holes 311, so that the mounting frame 11 can be installed on the top of the filter capacitor body 3.

[0028] Furthermore, in order to facilitate the disassembly and assembly of the mounting frame 11, six threaded holes are provided on the side wall of the outer edge 31, and the threaded holes are connected to the plug hole 311. A hand bolt 4 is installed in the threaded hole. By tightening the hand bolt 4, the plug 111 in the plug hole 311 can be pressed and fixed. Loosening and tightening the hand bolt 4 can release the pressing and fixing of the plug 111, thereby facilitating the disassembly of the mounting frame 11.

[0029] In this embodiment, the housing of the filter capacitor body 3 is made of aluminum alloy to facilitate heat dissipation inside the filter capacitor body 3 and ensure the heat dissipation performance of the filter capacitor body 3 .

[0030] Embodiment 2:

[0031] Please refer to Figure 1 and 4 A noise reduction and vibration reduction device for a filter capacitor also includes a second noise reduction mechanism 2, which is fixedly installed at the other end of the filter capacitor body 3. The second noise reduction mechanism 2 includes a base 21 and a second noise reduction layer 22 arranged in the base 21.

[0032] In this embodiment, the second noise reduction layer 22 is made of porous sound-absorbing cotton. Since the noise of the filter capacitor body 3 is relatively small, the second noise reduction layer 22 can be a single-layer structure. The second noise reduction layer 22 can absorb the noise generated when the filter capacitor body 3 is working, thereby achieving the effect of sound absorption, noise reduction and shock absorption.

[0033] Preferably, the thickness of the second noise reduction layer 22 is 10 mm. It is understandable that the thickness of the second noise reduction layer 22 can be selected independently according to actual needs.

[0034] The base 21 is a frame structure with two open sides. A first shelf 211 is arranged inside the base 21. The filter capacitor body 3 is installed on the first shelf and can be fixed by welding or screws. A second shelf 121 is arranged inside the base 21. The second shelf 121 is located below the first shelf 211. The second noise reduction layer 22 is adhesively installed on the second shelf 121.

[0035] In this embodiment, the housing of the filter capacitor body 3 is made of aluminum alloy to facilitate heat dissipation inside the filter capacitor body 3 and ensure the heat dissipation performance of the filter capacitor body 3 .

[0036] 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 noise reduction and vibration reduction device for a filter capacitor, characterized in that: It includes a first noise reduction mechanism and a second noise reduction mechanism, the first noise reduction mechanism is detachably mounted on one end of the filter capacitor body, the second noise reduction mechanism is fixedly mounted on the other end of the filter capacitor body, the first noise reduction mechanism includes a mounting frame and a first noise reduction layer arranged on the inner wall of the mounting frame, the mounting frame is a frame structure with two sides open, and the second noise reduction mechanism includes a base and a second noise reduction layer arranged in the base.

2. The noise reduction and vibration reduction device of the filter capacitor according to claim 1, characterized in that: The first noise reduction layer is a multi-layer structure, including a first noise reduction layer 1, an intermediate layer and a first noise reduction layer 2. The first noise reduction layer 2 is bonded to the inner wall of the mounting frame, the intermediate layer is bonded to the first noise reduction layer 2, and the first noise reduction layer 1 is bonded to the intermediate layer.

3. The noise reduction and vibration reduction device of the filter capacitor according to claim 2, characterized in that: The second noise reduction layer is a single-layer structure.

4. The noise reduction and vibration reduction device of the filter capacitor according to claim 2, characterized in that: A plurality of inserting plates are arranged at the bottom of the mounting frame, an outer edge is arranged at the top of the filter capacitor body, a plurality of inserting plate holes are arranged on the outer edge, and the inserting plate holes are matched with the inserting plates.

5. The noise reduction and vibration reduction device of the filter capacitor according to claim 4, characterized in that: A plurality of threaded holes are arranged on the outer edge side wall, the threaded holes are connected with the insert holes, and hand-tightened bolts are installed in the threaded holes.

6. The noise reduction and vibration reduction device of the filter capacitor according to claim 3, characterized in that: The base is a frame structure with two openings, a first shelf is arranged inside the base, and the filter capacitor body is installed on the first shelf.

7. The noise reduction and vibration reduction device of the filter capacitor according to claim 6, characterized in that: A second shelf is arranged inside the bottom bracket, the second shelf is located below the first shelf, and the second noise reduction layer is installed on the second shelf.

8. The noise reduction and vibration reduction device of the filter capacitor according to claim 3, characterized in that: The thickness of the first noise reduction layer is 15 mm, of which the first noise reduction layer 1 is 6 mm, the middle layer is 3 mm, the first noise reduction layer 2 is 6 mm, and the thickness of the second noise reduction layer is 10 mm.

Images