CN206312757U - A kind of low-noise power capacitor based on the compound gusset of damping - Google Patents
A kind of low-noise power capacitor based on the compound gusset of damping Download PDFInfo
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- CN206312757U CN206312757U CN201621417809.5U CN201621417809U CN206312757U CN 206312757 U CN206312757 U CN 206312757U CN 201621417809 U CN201621417809 U CN 201621417809U CN 206312757 U CN206312757 U CN 206312757U
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- China
- Prior art keywords
- sound insulation
- insulation chamber
- power capacitor
- gusset
- damping
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Abstract
The utility model discloses a kind of low-noise power capacitor based on the compound gusset of damping, including capacitor case, fuse, sleeve pipe, sound insulation chamber, the triangle gusset for welding and the damping material for scribbling in sound insulation chamber；Triangle gusset has light weight, stability good, can reduce the noise that the vibration transmission of sound insulation chamber and capacitor internal are radiated；Damping material utilizes its high damping characteristic, can effectively reduce the resonance of sound insulation chamber steel plate, improves steel plate close to the oise insulation factor of resonance range, can solve capacitor noise pollution problem.
Description
Technical field
The utility model belongs to power capacitor noise reduction technology field, and in particular to one kind is based on the compound gusset of damping
Low-noise power capacitor.
Background technology
During operation, the noise problem of generation is increasingly protruded HVDC ac filter power capacitor, sternly
The life of nearby residents is had influence on again.China Electric Power Research Institute and Henan Electric Power research institute are in DC converter station
Audible noise is tested, and is as a result shown：Noise level near power capacitor apparatus is all made an uproar beyond China's urban environment
Tone mark is accurate, GB GB12348--2008《Factory of enterprise ambient noise discharge standard》Between daytime, the noise level limit at night carries out
Regulation.According to the Standard, Guo Wang companies current conversion station capacitor technology specification regulation, capacitor unit noise is not more than
55dB, capacitor bank noise is not more than 65dB.Wu Peng's《HVDC converter substation ac filter capacitor noise reduction measure》To electricity
Power capacitor noise is surveyed, and experiment shows：Noise radiation of the power capacitor noise floor amount of radiation much larger than other faces
Amount.
To solve the problems, such as noise floor, 2011, Xi'an Communications University doctor's Wu Peng《HVDC converter substation exchange filter
Ripple capacitor noise reduction measure》Propose double bottom surface structures to reduce the noise of power capacitor bottom surface, 2013, cantankerous woods
《HVDC is developed with low noise capacitor》, summarized by lot of experiments, draw in capacitor element group bottom, lid two ends plus sound insulation chamber
It is the relatively effective scheme of current capacitor noise improvement, while the validity that doctor Wu Peng proposes double bottom surface structures is also demonstrated,
At the same time, certain noise reduction is achieved in engineering application, but does not meet the capacitor that environment department specifies also
Requirement of the noise level less than 55dB.
Noise reduction is carried out for separate unit power capacitor, China Patent No. ZL20152155690.8 discloses a kind of based on bubble
The power capacitor of foam metal noise reduction, the noise reduction measure that this power capacitor is used, mainly at the bottom of capacitor body
Foam metal plate is provided between the bottom interior wall of face and capacitor unit case shell, foam metal plate has obturator-type structure, so that
Reach the effect for reducing noise.But one of the method defect is that hydraulic oil is filled with inside power capacitor, bubble is hindered
The sound absorption of foam metal, the noise to power capacitor is possible to that amplification can be played, and the cost of foamed aluminium is too high.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and provides a kind of based on the low of the compound gusset of damping
Noise power capacitor, the power capacitor is effectively reduced the noise that bottom produces when power capacitor runs, and can meet ring
Requirement of the power capacitor noise level of border agencies dictate less than 55dB, and low production cost.
Realizing the technical solution of the utility model is：
A kind of low-noise power capacitor based on the compound gusset of damping, including tank of power capacitor, fuse, sleeve pipe, sound insulation
Chamber, triangle gusset, damping material, sleeve pipe are located at the top outside tank of power capacitor, and fuse is located inside tank of power capacitor, every
The operatic tunes is located between the bottom surface of fuse and tank of power capacitor bottom interior wall, and damping material is coated in the inner surface in sound insulation chamber, triangle
Gusset is welded in the sound insulation chamber for having applied damping material.
Described fuse, is formed with aluminium foil coiling by polypropylene film, is constituted by series and parallel, is passed through after loading case shell
Application of vacuum, immerses liquid medium, is drawn by sleeve pipe.
The material in described sound insulation chamber is steel plate, and steel plate thickness is 1 mm-3 mm, sound insulation chamber upper surface and lower surface away from
From being 20 mm -30 mm.
Described triangle gusset, from steel plate or aluminium sheet, thickness is 1 mm-3 mm, in triangle gusset and sound insulation chamber
The angle that the steel plate of upper and lower surface is formed is 30-50 °.
Described triangle gusset, is welded in sound insulation chamber and uses spot welding, and an entirety is formed with sound insulation chamber.
Described damping material, including adhesive, filler and adjuvant, the thickness of damping material is 4.5 mm -8mm, is applied
On the surface of sound insulation chamber light plate.
Described adhesive, is at least one in pitch, rubber, the hydrotrope.
Compared with prior art, the present invention has the advantage that：
The present invention is good with light weight, stability using the low-noise power capacitor for damping stiffened panel, while have again
Enough strength characters, can reduce the vibration passed out from inside power capacitor, can by adjust triangle gusset with
The angle of sound insulation chamber sheet metal, improves the oise insulation factor of capacitive bottom noise contribution frequency range, and damping layer clad can weaken sound insulation
The resonance of chamber sheet metal, improves sheet metal close to the oise insulation factor of resonance range, can solve power capacitor noise floor excessive
Problem.
Brief description of the drawings
Fig. 1 is a kind of low-noise power capacitor structure principle chart based on the compound gusset of damping；
In figure, 1. 2. fuse of tank of power capacitor, 3. sleeve pipe 4. sound insulation the damping material of 5. triangle gusset of chamber 6..
Specific embodiment
The utility model is further elaborated with reference to the accompanying drawings and examples, but is not to limit of the present utility model
It is fixed.
Embodiment：
As shown in figure 1, a kind of low-noise power capacitor based on the compound gusset of damping, including tank of power capacitor 1, fuse
2nd, sleeve pipe 3, sound insulation chamber 4, triangle gusset 6, damping material 6, sleeve pipe 3 are located at the top outside tank of power capacitor 1, and fuse 2 sets
Inside tank of power capacitor 1, sound insulation chamber 4 is located between the bottom surface of fuse 2 and the bottom interior wall of tank of power capacitor 1, and damping material 6 is applied
In the inner surface in sound insulation chamber 4, triangle gusset 5 is welded in the sound insulation chamber 4 for having applied damping material 6.
Described fuse 2 is formed with aluminium foil coiling by polypropylene film, is constituted by series and parallel, loads capacitor box
Through application of vacuum after shell 1, liquid medium is immersed, drawn by sleeve pipe 3.
The material in described sound insulation chamber 4 is steel plate, and steel plate thickness is 2mm, and the sound insulation upper surface of chamber 4 is with the distance of lower surface
25mm。
Described triangle gusset 5, from steel plate, thickness is 2mm, triangle gusset 5 and the upper and lower surface in sound insulation chamber
The angle that steel plate is formed is 45 °.
Described triangle gusset 5, is welded in sound insulation chamber 4 using spot welding mode, and an entirety is formed with sound insulation chamber 4.
Described damping material 6, including adhesive, filler and adjuvant, the thickness of damping material is 6mm, is coated in sound insulation
The surface of the steel plate in chamber 5.
The power capacitor, using gusset sound insulation and restricted type damping noise-reducing principle, by spot welding gusset in chamber of insulating against sound,
With sound insulation chamber shape in angle of 45 degrees, and on the surface in sound insulation chamber one layer of damping material is applied.When the chamber sheet metal that insulates against sound vibrates, welding
Gusset in sound insulation chamber can reduce the transmission of vibration, while consuming the acoustic energy in chamber, reach the effect of sound insulation.Table in sound insulation chamber
Face scribbles damping material, can significantly increase extensional vibration transmission damping, and vibration and radiated noise are reduced in broadband.
Because gusset and damping material are in outside capacitor, capacitor internal is not influenceed to work.
Described adhesive, is at least one in pitch, rubber, the hydrotrope.
Claims (6)
1. a kind of low-noise power capacitor based on the compound gusset of damping, it is characterised in that including tank of power capacitor, fuse,
Sleeve pipe, sound insulation chamber, triangle gusset, damping material, sleeve pipe are located at the top outside tank of power capacitor, and fuse is located at capacitor box
Inside shell, sound insulation chamber is located between the bottom surface of fuse and tank of power capacitor bottom interior wall, and damping material is coated in the interior table in sound insulation chamber
Face, triangle gusset is welded in the sound insulation chamber for having applied damping material.
2. it is according to claim 1 a kind of based on the low-noise power capacitor for damping compound gusset, it is characterised in that institute
The fuse stated, is formed with aluminium foil coiling by polypropylene film, is constituted by series and parallel, through application of vacuum after loading case shell, leaching
Enter liquid medium, drawn by sleeve pipe.
3. it is according to claim 1 a kind of based on the low-noise power capacitor for damping compound gusset, it is characterised in that institute
The material in the sound insulation chamber stated is steel plate, and steel plate thickness is 1 mm-3 mm, and sound insulation chamber upper surface is 20 mm with the distance of lower surface
-30 mm。
4. it is according to claim 1 a kind of based on the low-noise power capacitor for damping compound gusset, it is characterised in that institute
The triangle gusset stated, from steel plate or aluminium sheet, thickness is 1 mm-3 mm, triangle gusset and upper and lower surface in sound insulation chamber
The angle that steel plate is formed is 30-50 °.
5. it is according to claim 4 a kind of based on the low-noise power capacitor for damping compound gusset, it is characterised in that institute
The triangle gusset stated, is welded in sound insulation chamber and uses spot welding, and an entirety is formed with sound insulation chamber.
6. it is according to claim 1 a kind of based on the low-noise power capacitor for damping compound gusset, it is characterised in that institute
The damping material stated, thickness is 4.5 mm -8mm, is coated in the surface of sound insulation chamber light plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621417809.5U CN206312757U (en) | 2016-12-22 | 2016-12-22 | A kind of low-noise power capacitor based on the compound gusset of damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621417809.5U CN206312757U (en) | 2016-12-22 | 2016-12-22 | A kind of low-noise power capacitor based on the compound gusset of damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312757U true CN206312757U (en) | 2017-07-07 |
Family
ID=59247172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621417809.5U Expired - Fee Related CN206312757U (en) | 2016-12-22 | 2016-12-22 | A kind of low-noise power capacitor based on the compound gusset of damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206312757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910625A (en) * | 2017-02-28 | 2017-06-30 | 桂林电子科技大学 | A kind of low-noise power capacitor of use damping steel plate |
-
2016
- 2016-12-22 CN CN201621417809.5U patent/CN206312757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910625A (en) * | 2017-02-28 | 2017-06-30 | 桂林电子科技大学 | A kind of low-noise power capacitor of use damping steel plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20181222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |