CN105140026A - Mute power capacitor - Google Patents
Mute power capacitor Download PDFInfo
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- CN105140026A CN105140026A CN201510599901.1A CN201510599901A CN105140026A CN 105140026 A CN105140026 A CN 105140026A CN 201510599901 A CN201510599901 A CN 201510599901A CN 105140026 A CN105140026 A CN 105140026A
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- power capacitor
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- basement
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Abstract
A mute power capacitor of the present invention comprises a shell, a core and a core encapsulating film which are arranged in the shell, outgoing line terminals fixed outside the shell, and core leading-out wires. The encapsulating film is wrapped on the exterior of the core and is composed of two layers of basement films, a netted skeleton layer clamped between the two layers of basement films and the plastic damping grease filled in the gaps between the two layers of basement films and the netted skeleton layer. By compositing the two layers of basement films and the plastic damping grease, a practical and convenient core external encapsulating structure is provided, so that the core can be fastened very well, a lead wire structure can be protected, the insulation between the core and the shell can be satisfied, and the structure characteristic and the effect of the mute power capacitor can be enhanced by the arrangement of the two layers of basement films, and the product technological process is simplified. By utilizing the plastic damping grease as the receptor, the operation noise of the power capacitor can be reduced effectively, thereby realizing a mute effect. Meanwhile, the damping grease is formed by compositing the special high-molecular materials of good electrical insulating property, so that the insulation effect is enhanced, and the suitable range and the voltage resistant grade of a product are improved.
Description
Technical field
The present invention relates to power capacitor technical field, be specially a kind of quiet power capacitor.
Background technology
Along with the development of electric utility, the application scale of power capacitor is increasing, in the power capacitor the complete sets of equipment particularly used in a large number in extra-high voltage transmission, in each capacitor installation be usually hundreds even thousands of high-voltage power capacitor series and parallel connections combine, this capacitor device raising Power Systems factor and transmittability in play an important role.
But the new problem perplexing everybody also occurs thereupon, Here it is noise.People think the power equipment that power capacitor belongs to static usually, large noise can not be produced in work, and in fact large power capacitor apparatus run in due to factors such as the operationally powerful electric power of harmonic wave and both inner pad, lead-in wire, medium, wanting that noise ratio when capacitor runs is imagined is much serious, has become the outstanding problem of capacitor manufacture and operation.
Power capacitor manufacturing firm takes a lot of measure for restraint speckle, and the measure of existing power capacitor noise reducing mainly adopts installs noise reducing plate additional between capacitor packet and shell, is normally installed at bottom center and top.Noise reducing plate is generally made up of electric insulation cardboard, can to a certain degree stop sound wave to be delivered to shell.But this noise reducing plate does not reach desirable effect, turn increase simultaneously capacitor volume and by oil mass, thus add cost.
Summary of the invention
For problems of the prior art, the invention provides a kind of technique simple, agent structure is constant, quiet power capacitor with low cost.
The present invention is achieved through the following technical solutions:
A kind of quiet power capacitor, comprises shell, arranges center in the enclosure and center encapsulated membranes, is fixed on the outlet terminal of housing exterior, and center lead-out wire; The outside coated encapsulated membranes of described center; Described encapsulated membranes forms by filling plasticity damping grease in two-layer basement membrane and the reticulated bone rack-layer be clipped in wherein and the space between two-layer basement membrane and reticulated bone rack-layer.
Preferably, two-layer basement membrane adopts high-tension cable paper to form.
Preferably, reticulated bone rack-layer adopts the fenestral fabric of polyester fiber braiding.
Further, the grid in reticulated bone rack-layer is rectangle, square, triangle or polygon.
Preferably, two-layer basement membrane adopts adhesive to be pasted and fixed on the both sides of reticulated bone rack-layer respectively.
Preferably, the thickness of basement membrane is 0.1-0.15mm; The thickness of reticulated bone rack-layer is 0.08-0.1mm.
Compared with prior art, the present invention has following useful technique effect:
The present invention is by the compound of two-layer basement membrane and plasticity damping grease, a kind of practical and convenient center externally-packed structure is provided, not only can well fastening center and protection pin configuration, meet the insulation between center and shell, and its design feature and action effect can be strengthened due to the setting of double-deck basement membrane, reduce the coated number of plies, effectively simplify product process flow; Utilize plasticity damping grease for acceptor, effectively can reduce the running noises of power capacitor, realize muting function; Simultaneously because damping grease is composited by the special macromolecular material that electric insulating quality is good, can also reinforced insulation effect, improve the scope of application and the voltage withstand class of product; The cavity being formed between reticulated bone rack-layer and basement membrane and close one by one is set up between two-layer basement membrane, plasticity damping grease is locked in wherein, when this encapsulated membranes is subject to mechanical force extruding in manufacture and running, stressedly to bear primarily of reticular membrane skeleton, ensure that the uniformity of plasticity damping grease, thus ensure that insulation property and the damping noise-reducing performance of encapsulated membranes.
Further, reticular membrane adopts polyester fiber braiding to form, and can strengthen its structural strength and toughness, enhance product performance, and the size of mesh can adjust according to different demands.
Further, by the stickup of adhesive, can increase the adhesive force of three while ensureing overall structure uniformity, good integrity, machinability is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of power capacitor of the present invention.
Fig. 2 cuts open structural representation for the layer of encapsulated membranes described in example of the present invention.
In figure: shell 1, encapsulated membranes 2, center 3, lead-in wire 4, outlet terminal 5, basement membrane 21, reticulated bone rack-layer 22, plasticity damping grease 23.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
As shown in Figure 1, a kind of quiet power capacitor of the present invention comprises shell 1, is arranged on the center 3 in shell 1 and center encapsulated membranes 2, is fixed on the outlet terminal 5 of shell 1 outside, and center lead-out wire 4; The outside coated encapsulated membranes 2 of center 2; Encapsulated membranes 2 is made up of basement membrane 21, reticulated bone rack-layer 22, plasticity damping grease 23 and basement membrane 21.Concrete, the reticulated bone rack-layer 22 of one deck polyester fiber is set between the basement membrane 21 that two-layer cable paper is made, and fills plasticity damping grease 23 wherein.When the sound wave that during power capacitor runs, its center sends is through this encapsulated membranes, sound wave is decayed rapidly in plasticity damping grease material, thus significantly reduces the running noises of power capacitor.Because plasticity damping grease has mobility to a certain degree, be subject to mechanical pressure in the capacitor yielding, thus reduce insulation property and anti-acoustic capability, even if be compounded in the middle of two-layer cable paper, this mobility is also exist, so can not be directly used in as capacitor packet encapsulation piece, thus set up reticulated bone rack-layer in plasticity damping lipid layer.
In this preferred embodiment, basement membrane 21 adopts 0.1-0.15mm high-tension cable paper; Reticular membrane adopts 0.08-0.1mm polyester fiber, damping grease thickness about 0.08-0.1mm.According to the requirement of power capacitor electric pressure during use, calculate the number of plies determining to use.
When encapsulated membranes 22 in the present invention uses on a small quantity, can make by hand, cable paper and polyester graticule are cut into certain size size and make basement membrane and reticular membrane casing play, basement membrane 21 is tiled, reticulated bone rack-layer 22 is layered on after being coated with adhesive on basement membrane 21, in reticular membrane cavity, fill plasticity damping grease 23, then at brushing adhesive stick above, finally cover basement membrane 21 again and flatten.
Encapsulated membranes 22 batch production can realize on special rewinding machine, basement membrane 21, reticulated bone rack-layer 22 and basement membrane 21 are arranged on rewinding machine bin in order, by imposing plasticity damping grease 23 and adhesive in reticulated bone rack-layer 22 in rewinding process, the power capacitor damping noise-reducing encapsulated membranes of entire volume can be formed through extruding rewinding.Between basement membrane and reticular membrane, use adhesive to increase the adhesive force of three in rewinding process.
Encapsulated membranes in the present invention can play the effect of damping noise-reducing, can make web-like or sheet, carries out cutting being cut into applicable shape during use according to power capacitor specification size.Can wrap up, be wrapped on capacitor packet, or section is arranged on bottom capacitor packet or top and all around.Its using method is the same with common cable paper bag sealer, not varying capacitors production technology and equipment, convenient succinct.Efficiently solve the problem that in power capacitor operation, noise is large, for power capacitor manufacture provides a kind of mute structure easily and effectively.
Claims (6)
1. a quiet power capacitor, it is characterized in that, comprise shell (1), be arranged on the center (3) in shell (1) and center encapsulated membranes (2), be fixed on the outlet terminal (5) that shell (1) is outside, and center lead-out wire (4); The outside coated encapsulated membranes (2) of described center (3); Described encapsulated membranes (2) forms by filling plasticity damping grease (23) in two-layer basement membrane (21) and the reticulated bone rack-layer (22) be clipped in wherein and the space between two-layer basement membrane and reticulated bone rack-layer.
2. the quiet power capacitor of one according to claim 1, is characterized in that, two-layer basement membrane (1) adopts high-tension cable paper to form.
3. the quiet power capacitor of one according to claim 1, is characterized in that, reticulated bone rack-layer (2) adopts the fenestral fabric of polyester fiber braiding.
4. the quiet power capacitor of one according to claim 3, is characterized in that, the grid in reticulated bone rack-layer (2) is rectangle, square, triangle or polygon.
5. the quiet power capacitor of one according to claim 1, is characterized in that, two-layer basement membrane (1) adopts adhesive to be pasted and fixed on the both sides of reticulated bone rack-layer (2) respectively.
6. the quiet power capacitor of one according to claim 1, is characterized in that, the thickness of basement membrane (1) is 0.1-0.15mm; The thickness of reticulated bone rack-layer (2) is 0.08-0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510599901.1A CN105140026B (en) | 2015-09-18 | 2015-09-18 | A kind of Jing Yin power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510599901.1A CN105140026B (en) | 2015-09-18 | 2015-09-18 | A kind of Jing Yin power capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105140026A true CN105140026A (en) | 2015-12-09 |
| CN105140026B CN105140026B (en) | 2017-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510599901.1A Expired - Fee Related CN105140026B (en) | 2015-09-18 | 2015-09-18 | A kind of Jing Yin power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105140026B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713000A (en) * | 2019-10-24 | 2021-04-27 | 南京南瑞继保电气有限公司 | Integrated damping capacitor and method of assembling the same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60144924A (en) * | 1983-12-31 | 1985-07-31 | 関西電力株式会社 | Condenser unit |
| JPH0282605A (en) * | 1988-09-20 | 1990-03-23 | Shizuki Denki Seisakusho:Kk | Low noise type capacitor |
| CN201918736U (en) * | 2010-11-30 | 2011-08-03 | 无锡赛晶电力电容器有限公司 | High-voltage power capacitor |
| CN203051591U (en) * | 2013-01-18 | 2013-07-10 | 深圳思博科机械工程有限公司 | Vibration reduction sticky damping sheet |
| CN103320073A (en) * | 2013-06-26 | 2013-09-25 | 株洲世林聚合物有限公司 | Pouring type epoxy resin-based high-damping encapsulation material |
| CN203552944U (en) * | 2013-09-17 | 2014-04-16 | 亿曼丰科技（深圳）有限公司 | Novel thin-film capacitor |
| CN104465079A (en) * | 2014-11-21 | 2015-03-25 | 西安交通大学 | Low noise power capacitor adopting double casing structure with damping |
-
2015
- 2015-09-18 CN CN201510599901.1A patent/CN105140026B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60144924A (en) * | 1983-12-31 | 1985-07-31 | 関西電力株式会社 | Condenser unit |
| JPH0282605A (en) * | 1988-09-20 | 1990-03-23 | Shizuki Denki Seisakusho:Kk | Low noise type capacitor |
| CN201918736U (en) * | 2010-11-30 | 2011-08-03 | 无锡赛晶电力电容器有限公司 | High-voltage power capacitor |
| CN203051591U (en) * | 2013-01-18 | 2013-07-10 | 深圳思博科机械工程有限公司 | Vibration reduction sticky damping sheet |
| CN103320073A (en) * | 2013-06-26 | 2013-09-25 | 株洲世林聚合物有限公司 | Pouring type epoxy resin-based high-damping encapsulation material |
| CN203552944U (en) * | 2013-09-17 | 2014-04-16 | 亿曼丰科技（深圳）有限公司 | Novel thin-film capacitor |
| CN104465079A (en) * | 2014-11-21 | 2015-03-25 | 西安交通大学 | Low noise power capacitor adopting double casing structure with damping |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713000A (en) * | 2019-10-24 | 2021-04-27 | 南京南瑞继保电气有限公司 | Integrated damping capacitor and method of assembling the same |
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| Publication number | Publication date |
|---|---|
| CN105140026B (en) | 2017-09-26 |
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| GR01 | Patent grant | ||
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Granted publication date: 20170926 Termination date: 20180918 |