CN105719832A - Power capacitor unit - Google Patents
Power capacitor unit Download PDFInfo
- Publication number
- CN105719832A CN105719832A CN201610263469.3A CN201610263469A CN105719832A CN 105719832 A CN105719832 A CN 105719832A CN 201610263469 A CN201610263469 A CN 201610263469A CN 105719832 A CN105719832 A CN 105719832A
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- China
- Prior art keywords
- plate
- capacitor
- packet
- unit according
- ripple
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- 239000003990 capacitor Substances 0.000 title claims abstract description 101
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000007747 plating Methods 0.000 claims description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 210000000481 breast Anatomy 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000011344 liquid material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011343 solid material Substances 0.000 claims description 3
- 239000003570 air Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011797 cavity material Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
- H01G2/106—Fixing the capacitor in a housing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Filters And Equalizers (AREA)
Abstract
The invention relates to a power capacitor unit, comprising a capacitor shell and a capacitor core, wherein the capacitor core is placed at the middle part in the capacitor shell, and corrugated silencers are arranged between the capacitor core and the capacitor shell and at the middle part in the capacitor core. Compared with the prior art, the power capacitor unit is simple in technology, small in influence on electrical performance of the capacitor, capable of reducing noise radiation level, low in cost and applicable to large-scale application.
Description
Technical field
The present invention relates to technical field of electric power, particularly to a kind of power capacitor adopting armoring mute sound shell, ripple acoustic filter to reduce noise radiation.
Background technology
DC transmission engineering is uneven for the energy source distribution of solution the western and eastern of China, realize long distance powedr transmission has very important effect.In recent years, along with the fast development of China's HVDC Transmission Technology, the ratio that direct current transportation accounts for China's electric power energy conveying is increasing.After 2000, China has the DC engineering new more than 10 and puts into operation, and the electric pressure of system develops ± 1100kV rapidly from ± 500kV.
Along with the raising of China's expanding economy and people's living standard, the requirement of Environmental protection improves year by year, and the problem that affects of surrounding enviroment is increasingly concerned by the noise that current conversion station is in operation.Building up in the current conversion station put into operation at present, the equipment run has been carried out noise reduction process by respectively, is additionally arranged denoising device.But the current conversion station after putting into operation carrying out noise reduction process implement difficulty and invest all relatively big, noise reduction is also inconspicuous.Therefore, the noise controlling whole current conversion station by reducing the noise of main noise generation equipment is good settling mode.And capacitor is one of key equipment in HVDC transmission system, also it is one of topmost audible noise (hereinafter referred to as noise) radiation device in current conversion station, in corresponding bid document, the noise of capacitor being proposed significantly high requirement, the noise how reducing capacitor has become as the problem that each producer is anxious to be resolved.The noise of capacitor is owing to capacitor plate is under the effect of applied voltage, produces regular mechanical vibration and is delivered to the mode that shell radiates by case vibration again and propagates in air.The noise reduction technology occurred at present still can not meet the requirement that engineering is actual, it is therefore necessary to existing issue is solved.
Summary of the invention
The technical problem to be solved be to provide a kind of processing technology electric property simple, on capacitor affect little, noise radiation level is relatively low, cost is low, be suitable for the power capacitor unit of large-scale application.
The technical scheme is that a kind of power capacitor unit, including capacitor casing and capacitor packet, described capacitor packet is placed in the middle part in described capacitor protector body, between described capacitor packet and described capacitor casing and the bosom of described capacitor packet be provided with ripple acoustic filter.
The invention has the beneficial effects as follows: ripple acoustic filter can reduce noise radiation level, ripple acoustic filter can effectively reduce the vibration of capacitor packet, it is thus possible to reduce the noise radiation level that capacitor is overall, the impact of capacitor packet electric property is little, make capacitor packet remain stable for running, extend the service life of this device, and processing technology is simple, cost is low, is suitable for large-scale application.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described ripple acoustic filter is in the top of described capacitor packet, and described ripple acoustic filter is in the sleeve pipe place on described capacitor casing top.
Adopt above-mentioned further scheme to provide the benefit that: ripple acoustic filter can effectively reduce the noise radiation level at the sleeve pipe place on capacitor casing top, reduce noise and radiated by sleeve pipe place.
Further, described ripple acoustic filter is in the bottom of described capacitor packet.
Adopt above-mentioned further scheme to provide the benefit that: ripple acoustic filter can stablize support capacitor center, the noise radiation level in capacitor protector body can be reduced simultaneously.
Further, described ripple acoustic filter is for be made up of corrugated steel.
Adopting above-mentioned further scheme to provide the benefit that: corrugated steel cost is low, processing technology is simple, affects little on the electric property of capacitor, is suitable for large-scale application.
Further, described ripple acoustic filter includes two corrugated platings, header board, back plate, upper plate and lower plate, described header board is placed in the rear side of described front plate, the both sides being placed in described front and rear panels fixed by two described corrugated platings, and connect and compose assembly with described front and rear panels, described upper plate and lower plate are respectively placed in two described corrugated platings, the lower end of front and rear panels assembly and lower end, and seal structure with two described corrugated platings, front and rear panels composition side shape.
Adopting above-mentioned further scheme to provide the benefit that: the sealing structure that two corrugated platings, header board, back plate, upper plate and lower plate are formed, can effectively reduce noise radiation level, manufacturing process is simple, and cost is low；
Further, two described corrugated platings, front and rear panels are made by steel plate, and the thickness of its steel plate is 1mm～3mm；Described upper plate and lower plate are made by steel plate, and the thickness of its steel plate is 1mm～50mm.
Adopting above-mentioned further scheme to provide the benefit that: to promote the structural strength of ripple acoustic filter, can reduce noise radiation level simultaneously, manufacturing process is simple, and cost is low；
Further, the ripple number on two described corrugated platings is 1～10, and ripple radius of curvature is more than 2mm.
Above-mentioned further scheme is adopted to provide the benefit that: ripple number is 1～10 can effectively cushion noise transmission, reduces noise radiation level.
Further, the middle part of described ripple acoustic filter is provided with cavity, is filled with air or liquid or solid material in described cavity.
Above-mentioned further scheme is adopted to provide the benefit that: to be filled with air in cavity or liquid or solid material can reduce noise radiation level.
Further, described capacitor case is made up of the steel plate that thickness is 1.5mm～6mm or aluminium alloy plate, and described steel plate is corrosion resistant plate.
Adopting above-mentioned further scheme to provide the benefit that: the steel plate of 1.5mm～6mm or aluminium alloy plate can effectively reduce noise radiation level, manufacturing process is simple, and cost is low；Manufacturing process is simple, is suitable for large-scale application.
Further, described capacitor case includes two side plates, front plate, backplate, top cover and base plate, described backplate is placed in the rear side of described front plate, the both sides being placed in described front plate and backplate fixed by two described side plates, said two side plate, front plate and backplate constitute column, described top cover is placed in the upper end of described column, and described base plate fixes the lower end being placed in described column.
Above-mentioned further scheme is adopted to provide the benefit that: two side plates, front plate, backplate, top cover and base plate are built into armoring mute sound shell, can effectively reduce noise radiation level.
Further, described capacitor packet is high-voltage parallel capacitor center, ac filter capacitor packet or DC filter capacitors center.
Above-mentioned further scheme is adopted to provide the benefit that: applied widely.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of power capacitor unit of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the upward view of Fig. 1；
Fig. 4 is the top view of Fig. 1；
Fig. 5 is capacitor packet and the structural representation of ripple acoustic filter embodiment 1；
Fig. 6 is the structural representation of ripple acoustic filter embodiment 1；
Fig. 7 is capacitor packet and the structural representation of ripple acoustic filter embodiment 2；
Fig. 8 is the structural representation of ripple acoustic filter embodiment 2；
Fig. 9 is the side view of Fig. 8；
Figure 10 is the top view of Fig. 8.
In accompanying drawing, the list of parts representated by each label is as follows:
1, capacitor casing, 11, side plate, 12, front plate, 13, backplate, 14, top cover, 15, base plate；
2, capacitor packet；
3, ripple acoustic filter, 31, corrugated plating, 32, header board, 33, back plate, 34, upper plate, 35, lower plate；
4, sleeve pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
Embodiment 1:
As shown in Figures 1 to 6, a kind of power capacitor unit, including capacitor casing 1 and capacitor packet 2, described capacitor packet 2 is placed in the middle part in described capacitor casing 1, between described capacitor packet 2 and described capacitor casing 1 and the bosom of described capacitor packet 2 be provided with ripple acoustic filter 3.
Preferably, described ripple acoustic filter 3 is in the top of described capacitor packet 2, and described ripple acoustic filter 3 is in sleeve pipe 4 place on described capacitor casing 1 top.
Preferably, described ripple acoustic filter 3 is in the bottom of described capacitor packet 2.
Preferably, described ripple acoustic filter 3 is for be made up of corrugated steel.
Preferably, described capacitor case 1 is made up of the steel plate that thickness is 3mm～6mm or aluminium alloy plate, and its steel plate is corrosion resistant plate.
Preferably, described capacitor case 1 includes two side plates 11, front plate 12, backplate 13, top cover 14 and base plate 15, described backplate 13 is placed in the rear side of described front plate 12, two described fixing both sides being placed in described front plate 12 and backplate 13 of side plate 11, said two side plate 11, front plate 12 and backplate 13 constitute column, described top cover 14 is placed in the upper end of described column, the described fixing lower end being placed in described column of base plate 15.
Preferably, described capacitor packet 2 is high-voltage parallel capacitor center, ac filter capacitor packet or DC filter capacitors center.
Embodiment 2:
As shown in Figure 7 to 9, a kind of power capacitor unit, including capacitor casing 1 and capacitor packet 2, described capacitor packet 2 is placed in the middle part in described capacitor casing 1, between described capacitor packet 2 and described capacitor casing 1 and the bosom of described capacitor packet 2 be provided with ripple acoustic filter 3.
Preferably, described ripple acoustic filter 3 includes two corrugated platings 31, header board 32, back plate 33, upper plate 34 and lower plate 35, described header board 32 is placed in the rear side of described front plate 12, two described fixing both sides being placed in described header board 32 and back plate 33 of corrugated plating 31, and connect and compose assembly with described header board 32 and back plate 33, described upper plate 34 and lower plate 35 are respectively placed in lower end and the lower end of two described corrugated platings 31, header board 32 and back plate 33 assembly, and seal structure with two described corrugated platings 31, header board 32 and back plate 33 side of composition shape.
Preferably, two described corrugated platings 31, header board 32 and back plate 33 are made by steel plate, and the thickness of its steel plate is 1mm～3mm；Described upper plate 34 and lower plate 35 are made by steel plate, and the thickness of its steel plate is 1mm～50mm.
Preferably, the ripple number on two described corrugated platings 31 is 1～10, and ripple radius of curvature is more than 2mm.
Preferably, the middle part of described ripple acoustic filter 3 is provided with cavity, is filled with air or liquid in described cavity.
Preferably, described capacitor case 1 is made up of the steel plate that thickness is 1.5mm～6mm or aluminium alloy plate, and its steel plate is corrosion resistant plate.
Preferably, described capacitor case 1 includes two side plates 11, front plate 12, backplate 13, top cover 14 and base plate 15, described backplate 13 is placed in the rear side of described front plate 12, two described fixing both sides being placed in described front plate 12 and backplate 13 of side plate 11, said two side plate 11, front plate 12 and backplate 13 constitute column, described top cover 14 is placed in the upper end of described column, the described fixing lower end being placed in described column of base plate 15.
Preferably, described capacitor packet 2 is high-voltage parallel capacitor center, ac filter capacitor packet or DC filter capacitors center.
The ripple acoustic filter 3 of this device can reduce noise radiation level, affects little on the electric property of capacitor packet 2 so that capacitor packet 2 remains stable for running, and extends the service life of this device, and processing technology is simple, and cost is low, is suitable for large-scale application；Furthermore two side plates 11, front plate 12, backplate 13, top cover 14 and base plate 15 are built into armoring mute sound shell, can effectively reduce noise radiation level.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (11)
1. a power capacitor unit, including capacitor casing (1) and capacitor packet (2), it is characterized in that: described capacitor packet (2) is placed in the middle part in described capacitor casing (1), between described capacitor packet (2) and described capacitor casing (1) and the bosom of described capacitor packet (2) be provided with ripple acoustic filter (3).
2. a kind of power capacitor unit according to claim 1, it is characterized in that: described ripple acoustic filter (3) is in the top of described capacitor packet (2), and described ripple acoustic filter (3) is in sleeve pipe (4) place on described capacitor casing (1) top.
3. a kind of power capacitor unit according to claim 1, it is characterised in that: described ripple acoustic filter (3) is in the bottom of described capacitor packet (2).
4. a kind of power capacitor unit according to any one of claims 1 to 3, it is characterised in that: described ripple acoustic filter (3) is for be made up of corrugated steel.
5. a kind of power capacitor unit according to claim 1, it is characterized in that: described ripple acoustic filter (3) includes two corrugated platings (31), header board (32), back plate (33), upper plate (34) and lower plate (35), described header board (32) is placed in the rear side of described front plate (12), two described corrugated platings (31) are fixed and are placed in described header board (32) and the both sides of back plate (33), and connect and compose assembly with described header board (32) and back plate (33), described upper plate (34) and lower plate (35) are respectively placed in two described corrugated platings (31), the lower end of header board (32) and back plate (33) assembly and lower end, and with two described corrugated platings (31), header board (32) and back plate (33) composition side shape seal structure.
6. a kind of power capacitor unit according to claim 5, it is characterised in that: two described corrugated platings (31), header board (32) and back plate (33) are made by steel plate, and the thickness of its steel plate is 1mm～3mm；Described upper plate (34) and lower plate (35) are made by steel plate, and the thickness of its steel plate is 1mm～50mm.
7. a kind of power capacitor unit according to claim 5 or 6, it is characterised in that: the ripple number on two described corrugated platings (31) is 1～10, and ripple radius of curvature is more than 2mm.
8. a kind of power capacitor unit according to claim 1, it is characterised in that: the middle part of described ripple acoustic filter (3) is provided with cavity, is filled with air or liquid or solid material in described cavity.
9. a kind of power capacitor unit according to claim 1, it is characterised in that: described capacitor case (1) is made up of the steel plate that thickness is 1.5mm～6mm or aluminium alloy plate, and its steel plate is corrosion resistant plate.
10. a kind of power capacitor unit according to claim 1 or 9, it is characterized in that: described capacitor case (1) includes two side plates (11), front plate (12), backplate (13), top cover (14) and base plate (15), described backplate (13) is placed in the rear side of described front plate (12), two described side plates (11) are fixed and are placed in described front plate (12) and the both sides of backplate (13), said two side plate (11), front plate (12) and backplate (13) constitute column, described top cover (14) is placed in the upper end of described column, the fixing lower end being placed in described column of described base plate (15).
11. a kind of power capacitor unit according to claim 1, it is characterised in that: described capacitor packet (2) is high-voltage parallel capacitor center, ac filter capacitor packet or DC filter capacitors center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263469.3A CN105719832A (en) | 2016-04-26 | 2016-04-26 | Power capacitor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263469.3A CN105719832A (en) | 2016-04-26 | 2016-04-26 | Power capacitor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105719832A true CN105719832A (en) | 2016-06-29 |
Family
ID=56161614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610263469.3A Pending CN105719832A (en) | 2016-04-26 | 2016-04-26 | Power capacitor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105719832A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201576561U (en) * | 2009-12-01 | 2010-09-08 | 中国西电电气股份有限公司 | Low-noise electrical capacitor |
| DE102013203614A1 (en) * | 2013-03-04 | 2014-08-07 | Siemens Aktiengesellschaft | Capacitor unit for use in intermediate circuit of frequency converter of e.g. electric vehicle, has screening and power capacitor arranged in housing, where terminals of screening capacitors are grounded over conducting part of housing |
| CN205723155U (en) * | 2016-04-26 | 2016-11-23 | 桂林电力电容器有限责任公司 | A kind of power capacitor unit |
-
2016
- 2016-04-26 CN CN201610263469.3A patent/CN105719832A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201576561U (en) * | 2009-12-01 | 2010-09-08 | 中国西电电气股份有限公司 | Low-noise electrical capacitor |
| DE102013203614A1 (en) * | 2013-03-04 | 2014-08-07 | Siemens Aktiengesellschaft | Capacitor unit for use in intermediate circuit of frequency converter of e.g. electric vehicle, has screening and power capacitor arranged in housing, where terminals of screening capacitors are grounded over conducting part of housing |
| CN205723155U (en) * | 2016-04-26 | 2016-11-23 | 桂林电力电容器有限责任公司 | A kind of power capacitor unit |
Non-Patent Citations (3)
| Title |
|---|
| 孙克军: "《常用电工技术数据速查手册》", 30 April 2013 * |
| 朱斌: "《电网设备监控实用技术》", 31 May 2015 * |
| 甘林: "电力电容器噪声控制关键技术研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
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Application publication date: 20160629 |
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| RJ01 | Rejection of invention patent application after publication |