CN206711766U - A kind of structure for being used to reduce capacitor noise - Google Patents

A kind of structure for being used to reduce capacitor noise Download PDF

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Publication number
CN206711766U
CN206711766U CN201720461263.1U CN201720461263U CN206711766U CN 206711766 U CN206711766 U CN 206711766U CN 201720461263 U CN201720461263 U CN 201720461263U CN 206711766 U CN206711766 U CN 206711766U
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China
Prior art keywords
noise reduction
dividing plate
cavity
noise
capacitor
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CN201720461263.1U
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Chinese (zh)
Inventor
孙晓凤
肖果
武红旗
李大燕
姚妍君
祝令瑜
李金宇
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HERONG ELECTRIC Co Ltd
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HERONG ELECTRIC Co Ltd
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Abstract

The utility model discloses a kind of structure for being used to reduce capacitor noise, including the noise reduction shell for being surrounded capacitor body surrounding, the upper end of noise reduction shell is provided with noise reduction lid, noise reduction lid is coated the upper end of capacitor body, and the opposite sides of the upper end outer surface of noise reduction shell is respectively equipped with the joint hinge a being connected with noise reduction lid;The lower end of noise reduction shell is provided with noise reduction bottom, and noise reduction bottom is coated the lower end of capacitor body, and the opposite sides of the lower end outer surface of noise reduction shell is respectively equipped with the joint hinge b being connected with noise reduction bottom.Solving the problems, such as current capacitor, noise is big in the process of running.

Description

A kind of structure for being used to reduce capacitor noise
Technical field
The utility model belongs to power capacitor unit technical field, is related to a kind of knot for being used to reduce capacitor noise Structure.
Background technology
Capacitor is made up of several parts such as fuse, shell, outgoing line porcelain bushing, and there is a joint hinge for installation tank wall both sides, and one Side joint hinge is equipped with earth stud, and shell is welded by stainless steel plate shaping, as shown in Figure 1.With the quick hair of direct current transportation Exhibition, current conversion station flow through substantial amounts of harmonic current with ac filter capacitor, give off substantial amounts of noise and seriously affected week The normal life of side resident, therefore the method and structure for reducing capacitor noise is studied with regard to significant.Capacitor noise produces Mainly capacitor internal fuse vibrate so as to cause case vibration, the vibration of capacitor case is concentrated mainly on capacitor Top and bottom surface, and for side, it is due to that the edge of capacitor in itself is welded and fixed and the reason such as built-in electrical insulation medium Caused vibration is transmitted, and therefore, side is much smaller relative to the vibration amplitude of bottom surface.Other each face is the seamed edge welded by metal As border, these seamed edges can produce certain constraint to each face, and because the area of narrow side is small, the boundary constraint being subject to is wider Side is big.Other broad side surface and the narrow side of the capacitor core subcomponent for the rectangle cake being pressed into are close, the narrow side of fuse element Vibration also delivers energy to capacitor case broad side surface caused by face, and the vibration amplitude broad side face of narrow side is small.Therefore, it is electric Container bottoms vibration is main source caused by capacitor noise.
Utility model content
The purpose of this utility model is to provide a kind of structure for being used to reduce capacitor noise, solves current capacitor and exists The problem of noise is big in running.
The utility model is the technical scheme adopted is that a kind of be used to reducing the structure of capacitor noise, including by electric capacity The noise reduction shell that device body surrounding is surrounded, the upper end of noise reduction shell are provided with noise reduction lid, and noise reduction lid is by the upper of capacitor body End is coated, and the opposite sides of the upper end outer surface of noise reduction shell is respectively equipped with the joint hinge a being connected with noise reduction lid;Drop The make an uproar lower end of shell is provided with noise reduction bottom, and noise reduction bottom is coated the lower end of capacitor body, the lower end outer surface of noise reduction shell Opposite sides be respectively equipped with noise reduction bottom be connected joint hinge b.
The characteristics of the utility model, also resides in,
Wherein noise reduction lid includes rectangular-shape cavity a of the bottom without bottom, and cavity a inside top is sequentially provided with sound-absorbing Cotton layer A and dividing plate a, acoustical cotton layer A are located between cavity a upper bottom and dividing plate a, and heat emission hole a, chamber are evenly distributed with dividing plate a Two circular holes being used for through capacitor body sleeve pipe are offered at the top of body a, circular hole penetrates acoustical cotton layer A and dividing plate a successively;
The inwall for the vertical side that wherein cavity a two of which is oppositely arranged is provided with dividing plate b, uniformly divides on dividing plate b It is furnished with heat emission hole b;
Wherein cavity a two other vertical side top being oppositely arranged is respectively equipped with to be consolidated with what two joint hinge a were connected Fixed board a.
Wherein heat emission hole a aperture is less than heat emission hole b aperture.
Wherein noise reduction bottom includes the cavity b at supreme bottom of going to the bottom, cavity b bottom inside be sequentially provided with acoustical cotton layer B and Dividing plate c, acoustical cotton layer B are located between cavity b bottom and dividing plate c, and heat emission hole c is evenly distributed with dividing plate c;
The inwall for the vertical side that wherein cavity b two of which is oppositely arranged is provided with dividing plate d, uniformly divides on dividing plate d It is furnished with heat emission hole d;
Wherein cavity b two other vertical side top being oppositely arranged is respectively equipped with to be consolidated with what two joint hinge b were connected Fixed board b.
Wherein heat emission hole c aperture is less than heat emission hole d aperture.
The beneficial effects of the utility model are a kind of structural improvements for being used to reduce capacitor noise of the present utility model Existing capacitor operationally caused noise problem.A kind of structure for being used to reduce capacitor noise of the present utility model exists Noise reduction shell is added on capacitor body, increases noise reduction lid and noise reduction bottom respectively in noise reduction cover top portion and bottom, so that Reduce the transmission of noise to a certain extent, enhance product performance.
Brief description of the drawings
Fig. 1 is a kind of front view of structure installation on the capacitor for reducing capacitor noise of the utility model;
Fig. 2 is a kind of side view of structure installation on the capacitor for reducing capacitor noise of the utility model;
Fig. 3 is the structural representation of noise reduction lid in a kind of structure for reducing capacitor noise of the utility model;
Fig. 4 is the structural representation at noise reduction bottom in a kind of structure for reducing capacitor noise of the utility model.
In figure, 1. capacitor bodies, 2. noise reduction shells;
3. noise reduction lid, 3-1. cavitys a, 3-2. dividing plate a, 3-3. heat emission hole a, 3-4. circular hole, 3-5. dividing plates b, 3-6. radiating Hole b, 3-7. fixed plate a;
4. joint hinge a,
5. noise reduction bottom, 5-1. cavitys b, 5-2. dividing plate c, 5-3. heat emission hole c, 5-4. dividing plate d, 5-5. heat emission hole d, 5-6. is solid Fixed board b;
6. joint hinge b.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of structure for being used to reduce capacitor noise of the utility model, as shown in Fig. 1~2, one kind is used to reduce electric capacity The structure of device noise, including the noise reduction shell 2 that the surrounding of capacitor body 1 is surrounded, the upper end of noise reduction shell 2 are provided with noise reduction Lid 3, noise reduction lid 3 are coated the upper end of capacitor body 1, the opposite sides difference of the upper end outer surface of noise reduction shell 2 Provided with the joint hinge a4 being connected with noise reduction lid 3;The lower end of noise reduction shell 2 is provided with noise reduction bottom 5, and noise reduction bottom 5 is by capacitor body 1 Lower end coated, the opposite sides of the lower end outer surface of noise reduction shell 2 is respectively equipped with the joint hinge being connected with noise reduction bottom 5 b6。
As shown in figure 3, noise reduction lid 3 includes rectangular-shape cavity a3-1 of the bottom without bottom, in cavity a3-1 top Side is sequentially provided with acoustical cotton layer A and dividing plate a3-2, and acoustical cotton layer A is located between cavity a3-1 upper bottom and dividing plate a3-2, dividing plate Heat emission hole a3-3 is evenly distributed with a3-2, two are offered at the top of cavity a3-1 and is used for through the sleeve pipe of capacitor body 1 Circular hole 3-4, circular hole 3-4 penetrate acoustical cotton layer A and dividing plate a3-2 successively;
The inwall for the vertical side that cavity a3-1 two of which is oppositely arranged is provided with dividing plate b3-5, equal on dividing plate b3-5 It is even that heat emission hole b3-6 is distributed with;
Wherein cavity a3-1 two other vertical side top being oppositely arranged is respectively equipped with to be connected with two joint hinge a4 Fixed plate a3-7.
Wherein heat emission hole a3-3 aperture is less than heat emission hole b3-6 aperture.
As shown in figure 4, noise reduction bottom 5 includes the cavity b5-1 at supreme bottom of going to the bottom, cavity b5-1 bottom inside is set successively There are acoustical cotton layer B and dividing plate c5-2, acoustical cotton layer B is located between cavity b5-1 bottom and dividing plate c5-2, equal on dividing plate c5-2 It is even that heat emission hole c5-3 is distributed with;
The inwall for the vertical side that cavity b5-1 two of which is oppositely arranged is provided with dividing plate d5-4, equal on dividing plate d5-4 It is even that heat emission hole d5-5 is distributed with;
Wherein cavity b5-1 two other vertical side top being oppositely arranged is respectively equipped with to be connected with two joint hinge b6 Fixed plate b5-6.
Wherein heat emission hole c5-3 aperture is less than heat emission hole d5-5 aperture.
The utility model it is a kind of be used for reduce capacitor noise structure the characteristics of be, heat emission hole a3-3 size and every The density that is distributed on plate a3-2, heat emission hole b3-6 size and the density in dividing plate b3-5 distributions, heat emission hole c5-3 size and The size of distribution density, heat emission hole d5-5 on dividing plate c5-2 and the density that is distributed on dividing plate d5-4 are by flowing through capacitor The Current calculation of different frequency is drawn.It is meanwhile equal with capacitor body 1 when noise reduction lid 3, noise reduction bottom 5, the installation of noise reduction shell 2 Keep certain cavity.Noise reduction lid 3, noise reduction shell 2 and noise reduction bottom 5 are incited somebody to action from the top of capacitor body 1, middle part, bottom successively Capacitor body 1 is coated completely, reduces the transmission of noise to a certain extent.

Claims (5)

  1. A kind of 1. structure for being used to reduce capacitor noise, it is characterised in that:Including capacitor body (1) surrounding is surrounded Noise reduction shell (2), the upper end of noise reduction shell (2) is provided with noise reduction lid (3), and noise reduction lid (3) is by the upper end of capacitor body (1) Coated, the opposite sides of the upper end outer surface of noise reduction shell (2) is respectively equipped with the joint hinge a being connected with noise reduction lid (3) (4);The lower end of noise reduction shell (2) is provided with noise reduction bottom (5), and noise reduction bottom (5) are coated the lower end of capacitor body (1), drop Make an uproar shell (2) lower end outer surface opposite sides be respectively equipped with noise reduction bottom (5) be connected joint hinge b (6).
  2. A kind of 2. structure for being used to reduce capacitor noise according to claim 1, it is characterised in that:The noise reduction lid (3) rectangular-shape cavity a (3-1) of the bottom without bottom is included, cavity a (3-1) inside top is sequentially provided with acoustical cotton layer A With dividing plate a (3-2), the acoustical cotton layer A is located between cavity a (3-1) upper bottom and dividing plate a (3-2), on dividing plate a (3-2) It is even that heat emission hole a (3-3) is distributed with, two are offered at the top of cavity a (3-1) and is used for through the capacitor body (1) sleeve pipe Circular hole (3-4), circular hole (3-4) penetrates the acoustical cotton layer A and dividing plate a (3-2) successively;
    The inwall for the vertical side that the two of which of the cavity a (3-1) is oppositely arranged is provided with dividing plate b (3-5), dividing plate b (3- 5) heat emission hole b (3-6) is evenly distributed with;
    Two other vertical side top being oppositely arranged of the cavity a (3-1) is respectively equipped with to be connected with two joint hinge a (4) Fixed plate a (3-7).
  3. A kind of 3. structure for being used to reduce capacitor noise according to claim 2, it is characterised in that:The heat emission hole a The aperture of (3-3) is less than heat emission hole b (3-6) aperture.
  4. A kind of 4. structure for being used to reduce capacitor noise according to claim 1, it is characterised in that:The noise reduction bottom (5) the cavity b (5-1) at supreme bottom of going to the bottom is included, cavity b (5-1) bottom inside is sequentially provided with acoustical cotton layer B and dividing plate c (5-2), the acoustical cotton layer B are located between cavity b (5-1) bottom and dividing plate c (5-2), are uniformly distributed on dividing plate c (5-2) There is heat emission hole c (5-3);
    The inwall for the vertical side that cavity b (5-1) two of which is oppositely arranged is provided with dividing plate d (5-4), on dividing plate d (5-4) It is evenly distributed with heat emission hole d (5-5);
    Two other vertical side top being oppositely arranged of the cavity b (5-1) is respectively equipped with to be connected with two joint hinge b (6) Fixed plate b (5-6).
  5. A kind of 5. structure for being used to reduce capacitor noise according to claim 4, it is characterised in that:The heat emission hole c The aperture of (5-3) is less than heat emission hole d (5-5) aperture.
CN201720461263.1U 2017-04-28 2017-04-28 A kind of structure for being used to reduce capacitor noise Active CN206711766U (en)

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Application Number Priority Date Filing Date Title
CN201720461263.1U CN206711766U (en) 2017-04-28 2017-04-28 A kind of structure for being used to reduce capacitor noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720461263.1U CN206711766U (en) 2017-04-28 2017-04-28 A kind of structure for being used to reduce capacitor noise

Publications (1)

Publication Number Publication Date
CN206711766U true CN206711766U (en) 2017-12-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112582174A (en) * 2020-12-02 2021-03-30 中铁三局集团有限公司 High-voltage capacitor for load test of railway traction substation and test method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112582174A (en) * 2020-12-02 2021-03-30 中铁三局集团有限公司 High-voltage capacitor for load test of railway traction substation and test method

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