CN201178032Y - Capacitor device having noise absorption cover - Google Patents
Capacitor device having noise absorption cover Download PDFInfo
- Publication number
- CN201178032Y CN201178032Y CNU2008201041136U CN200820104113U CN201178032Y CN 201178032 Y CN201178032 Y CN 201178032Y CN U2008201041136 U CNU2008201041136 U CN U2008201041136U CN 200820104113 U CN200820104113 U CN 200820104113U CN 201178032 Y CN201178032 Y CN 201178032Y
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- sound absorption
- absorption cover
- capacitor
- capacitor device
- sound
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Abstract
The utility model relates to a capacitor device for a sound absorption cover, which comprises at least one capacitor unit installed on a layer rack. The capacitor units are same, a capacitor component is installed inside the casing of each capacitor unit, and a sleeve terminal is sheathed on the top surface of the casing. A sound absorption cover is installed on the top surface and/or bottom surface and/or large surface and/or lateral surface of each capacitor unit in the capacitor device. The sound absorption cover comprises a sound absorption plate, a sound insulation plate and a bracket, wherein the sound absorption plate and the sound insulation plate are fixedly installed on the bracket and form the sound absorption cover, the length and width of the sound absorption cover match with the length and width of the casing of each corresponding capacitor unit, the sound absorption cover faces toward the casing of the corresponding capacitor unit and is kept with a space with the surface of the casing, and the bracket of the sound absorption cover is fixedly connected with the casing of the capacitor unit and/or the layer rack of the capacitor device. The sound absorption cover installed on the capacitor device can effectively block and absorb the noise generated by the capacitor unit(s), so as to reduce the noise generated by the capacitor device during operation.
Description
(1) technical field:
The utility model relates to capacitor area, is specially a kind of capacitor device with sound absorption cover that is used for high-voltage electric power system.
(2) background technology:
In high pressure, superhigh pressure, extra-high voltage electric power system, be bucking-out system lagging reactive power, filtering harmonic component, need to use in parallel, filter capacitor apparatus; Especially in DC transmission system, this class parallel connection, filter capacitor apparatus have that capacity is big, and floor space is big, the characteristics that pylon is high.
The super high voltage direct current electricity transmission system is in the AC and DC conversion process, DC side and AC side all produce a large amount of harmonic waves, when harmonic current passes through to exchange parallel connection, filtering capacitor and DC filter capacitors, medium is subjected to the effect of alternating electric field power and produces vibration in the capacitor unit, cause the vibration of capacitor unit case surface, the air of next-door neighbour's capacitor unit case surface vibrates generation sound thereupon.Capacitor unit quantity is very many in the capacitor device, under certain condition, the synthetic back of the noise of all capacitor units produces the audible noise greater than 60dB near capacitor device, the limit value that surpasses 2 class standard zones among the GB 3096-93 " standard of environmental noise of urban area " has a negative impact to production, the life of surrounding resident.After " People's Republic of China's pollution from environmental noise is prevented therapy " issuing and implementation, operation power department reduces the AC and DC requirement in parallel and filter capacitor apparatus running noises of super high voltage direct current electricity transmission system to taking measures more urgent.
(3) utility model content:
The utility model discloses a kind of capacitor device with sound absorption cover, its objective is the noise that reduces in the capacitor device normal course of operation, makes it reach the environmental protection standard of national regulation.
The capacitor device with sound absorption cover that the utility model is designed comprises that at least one is installed on the identical capacitor unit on layer frame, and the shell of each capacitor unit is a cuboid.Outer casing top surface, bottom surface with each capacitor unit on one deck frame are concordant mutually with big face; Outer casing top surface, bottom surface and the side of each capacitor unit are concordant mutually between layer frame.This capacitor device can be installed on a pylon in the three-phase set; Also can a group capacitor device be divided into three-phase and be sub-packed in three pylons.Each pylon comprises the layer frame of 1～40 closed assembly, and each layer frame installed 1～24 capacitor unit.In each capacitor unit shell capacity cell is installed, the end face of shell has the conduit connection end.Layer frame made by galvanizing shaped steel.Be with the difference of conventional capacitor device: the end face of each capacitor unit and/or bottom surface and/or big face and/or side respectively are equipped with the sound absorption cover in the capacitor device; This sound absorption cover comprises acoustic board, sound panel and support, the acoustic board and the sound panel that are installed in support constitute the sound absorption cover, the length and width of described sound absorption cover match with the length and width of its pairing a plurality of capacitor unit shells, the acoustic board of sound absorption cover is in the face of the shell of pairing capacitor unit, maintain the gap with case surface, and the support of sound absorption cover is connected mutually with layer frame of the shell of capacitor unit and/or capacitor device.The sound absorption cover of installing on capacitor device can effectively stop and absorb the noise that each capacitor unit produces, thereby reduces the noise that capacitor device produces in running.
Described acoustic board is an aluminum fiber acoustic board.Aluminum fiber acoustic board has light weight, intensity height, can stand the washing away of air-flow and current, corrosion-resistant and weather resistance excellent characteristics, and processing characteristics is good.Used aluminum fabric acoustic absorption plate thickness is 0.8mm～2mm.
Described sound panel can be selected corrosion resistant plate, rigidity sheet material that the aluminium sheet isodensity is big for use.For obtaining better acoustically effective, described sound panel and acoustic board are parallel to each other, and the gap of 0～100mm is arranged between the two.
For the volume that reduces sound absorption cover with stop noise better, and guarantee the capacitor unit well-ventilated, described sound absorption cover covers for the flat board sound absorption that cross section in length and breadth is rectangle; Or a dull and stereotyped end forms L shapedly to acoustic board direction bending of living in, its longitudinal section, is L shaped sound absorption cover; Or dull and stereotyped two side direction acoustic boards direction of living in bends, its cross section forms C shape, is C shape sound absorption cover.The bending part of C shape and L shaped sound absorption cover can block the part face of corresponding capacitor unit, strengthens acoustically effective.
For more helping sound insulation and sound absorption, the acoustic board of described sound absorption cover and sound panel form the cavity of sealing in the gap at both sides and two ends complete closed between the two.L shaped or C shape sound absorption cover can all be closed cavity or the local sound absorption cover that closed cavity is arranged, and the acoustic board of its main part and sound panel form closed cavity in both sides and two ends complete closed; Its bending part is closed cavity or the sound panel that deadening has only been arranged.
The distance of the acoustic board of described sound absorption cover and capacitor unit case surface is 3～30mm, is directly passed to the sound absorption cover with the vibration of avoiding capacitor unit, influences acoustically effective.
As preferred version, described sound absorption cover is installed on capacitor device to be had the end face of conduit connection end and/or is installed in the bottom surface.Adopt C shape sound absorption cover at end face, plate shaped sound absorption cover is installed in the bottom surface.
Advantage of the present utility model is:
1, installs the capacitor device of sound absorption cover additional, be applicable to high-voltage electric power system, reduced the noise that produces in the capacitor device running effectively;
2, the sound absorption cover of installing on the capacitor device does not need additionally to take the fabricating yard, and is easy to install and use;
3, acoustic board is the aluminum alloy fiber plate, drench with rain make moist the back performance constant, weather resistance is good;
4, the sound absorption cover does not influence the heat dispersion of capacitor device;
5, simple in structure, cost is lower, be easy to promote the use of.
(4) description of drawings:
Below in conjunction with the embodiment accompanying drawing the utility model is elaborated.
Fig. 1 is the structural representation that the utlity model has the capacitor device embodiment 1 of sound absorption cover;
Fig. 2 is the perspective view that the utlity model has the capacitor device embodiment 1 middle plateform sound absorption cover of sound absorption cover;
Fig. 3 is the cross sectional representation that the utlity model has the capacitor device embodiment 1 middle plateform sound absorption cover of sound absorption cover;
Fig. 4 is the perspective view that the utlity model has C shape sound absorption cover among the capacitor device embodiment 1 that covers that absorbs sound;
Fig. 5 is the cross section perspective view that the utlity model has C shape sound absorption cover among the capacitor device embodiment 1 that covers that absorbs sound;
Fig. 6 the utlity model has the cross sectional representation that the C shape of partial closure's cavity sound absorption cover is arranged among the capacitor device embodiment 1 that covers that absorbs sound;
Fig. 7 is the structural representation that the utlity model has the capacitor device embodiment 2 of sound absorption cover;
Fig. 8 is the longitudinal section schematic diagram of L type sound absorption cover that the utlity model has the capacitor device embodiment 2 of sound absorption cover.
Description of drawings: 1 sound absorption cover; The 1-1 sound panel; The 1-2 acoustic board; The 1-3 support; 2 capacitor units; 3 terminals sleeve pipes; 4 layers of frame 5 joint hinge.
(5) embodiment:
Embodiment 1:
Figure 1 shows that capacitor device embodiment 1 with sound absorption cover 1.2 identical capacitor units 2 that are installed on layer frame 4, the big face in cuboid outer casing top surface, bottom surface and front and back of each capacitor unit 2 is concordant mutually, in each capacitor unit 2 shell capacity cell is installed, and the end face of shell has the conduit connection end.This figure only is a schematic diagram, and it is pylon that each layer frame 4 can be installed 2,1～40 layer framves of 1～24 capacitor unit 4 overlappable.Sound absorption cover 1 comprises that thickness is aluminum fiber acoustic board 1-2, sound panel 1-1 and the support 1-3 of 2mm.Acoustic board 1-2 and sound panel 1-1 are installed on the support 1-3, and it is overlapping to be parallel to each other, and the gap between the two is 50mm.The length of sound absorption cover 1 matches with the length sum of its pairing 2 capacitor units 2, and the wide width with its pairing capacitor unit 2 of sound absorption cover 1 matches.
Be installed on the dull and stereotyped sound absorption cover 1 that is of capacitor unit 2 bottom surfaces, as shown in Figure 2, its acoustic board 1-2 and sound panel 1-1 form closed cavity in the equal complete closed in both sides and two ends between the two.Its cross section as shown in Figure 3.The acoustic board 1-2 face of this sound absorption cover 1 towards capacitor unit 2 bottom surfaces, with gap between its shell be 20mm, the support 1-3 of sound absorption cover 1 is connected mutually with layer frame 4 of capacitor device.
The sound absorption cover 1 that is installed on capacitor unit 2 end faces is C shape sound absorption cover 1, as shown in Figure 4, on the basis of flat board sound absorption cover 1, its two side direction acoustic board 1-2 direction bending of living in, cross section forms C shape, as shown in Figure 5.The big face in part front and back that the bending part of C shape sound absorption cover 1 blocks capacitor device strengthens acoustically effective.Its acoustic board 1-2 and sound panel 1-1 form cavity in both sides and closed at both ends between the two.This sound absorption cover 1 has the hole of matching with the conduit connection end of capacitor unit 2 end faces, 1 o'clock conduit connection end of sound absorption cover is installed is passed hole on the sound absorption cover 1.The support 1-3 of sound absorption cover 1 is connected with bolt with joint hinge 5 that is fixed in capacitor unit 2 shell sides and layer frame.The acoustic board 1-2 of this sound absorption cover 1 main part is 3mm apart from capacitor unit 2 outer casing top surfaces distance, and the edge of bending part is 30mm far from big of capacitor unit 2 shells.
Described C shape sound absorption cover 1 also can be only the sound absorption of partial closure's cavity cover 1, and the acoustic board 1-2 of its main part and sound panel 1-1 form closed cavity in both sides and two ends complete closed; Its bending part has only had the sound panel 1-1 of deadening.As shown in Figure 6.
Embodiment 2:
Figure 7 shows that the capacitor device embodiment 2 with sound absorption cover 1, comprise 2 identical capacitor units 2 that are installed on layer frame 4, its mounting structure and embodiment 1 are similar.The end face of described capacitor unit 2 and bottom surface respectively are equipped with a sound absorption cover 1.Its end face is installed C shape sound absorption cover 1, and its structure and installation are identical with embodiment 1.L shaped sound absorption cover 1 is installed in its bottom surface, and its structure is on the basis of flat board sound absorption cover 1, and an end is to acoustic board 1-2 direction bending of living in, and its longitudinal section forms L shaped, as shown in Figure 8.The bending part of sound absorption cover 1 blocks the part left surface of capacitor unit 2, strengthens acoustically effective.The main part of described acoustic board 1-2 and sound panel 1-1 is in the sealing of the gap at both sides and two ends, and main part forms cavity between the two.Bending part only has one deck sound panel 1-1, as shown in Figure 8.
Claims (9)
1, the capacitor device that has the sound absorption cover, comprise that at least one is installed on the capacitor unit (2) of the identical cuboid shell on layer frame (4), upward each capacitor unit (2) outer casing top surface, bottom surface and big face are concordant mutually with one deck frame (4), in each capacitor cell shell capacity cell is installed, the end face of shell has the conduit connection end, it is characterized in that:
End face of each capacitor unit (2) and/or bottom surface and/or big face and/or side respectively are equipped with sound absorption cover (1) in the described capacitor device; This sound absorption cover (1) comprises acoustic board (1-2), sound panel (1-1) and support (1-3), the acoustic board (1-2) and the sound panel (1-1) that are installed in support (1-3) constitute sound absorption cover (1), the length and width of described sound absorption cover (1) match with the length and width of its pairing a plurality of capacitor units (2) shell, the acoustic board (1-2) of sound absorption cover (1) is faced pairing capacitor unit (2) shell, is maintained the gap with case surface, and the support (1-3) of sound absorption cover (1) is connected mutually with the layer frame (4) of the shell of capacitor unit (2) and/or capacitor device.
2, the capacitor device with sound absorption cover according to claim 1 is characterized in that:
Described acoustic board (1-2) is aluminum fiber acoustic board (1-2), and its thickness is 0.8mm～2mm.
3, the capacitor device with sound absorption cover according to claim 1 is characterized in that:
Described sound panel (1-1) and acoustic board (1-2) are parallel to each other, have between the two the gap of 0mm～100mm.
4, the capacitor device with sound absorption cover according to claim 1 is characterized in that:
The acoustic board (1-2) of described sound absorption cover (1) is 3～30mm with the distance of pairing capacitor unit (2) case surface.
5, according to each described capacitor device in the claim 1 to 4, it is characterized in that with sound absorption cover:
Described sound absorption cover (1) is the flat board sound absorption cover (1) of rectangle for cross section in length and breadth, or a dull and stereotyped end forms L shapedly to acoustic board (1-2) direction bending of living in, its longitudinal section, is L shaped sound absorption cover (1); Or dull and stereotyped two side direction acoustic boards (1-2) direction of living in bends, its cross section forms C shape, is C shape sound absorption cover (1).
6, the capacitor device with sound absorption cover according to claim 5 is characterized in that:
The acoustic board (1-2) of described sound absorption cover (1) and sound panel (1-1) are closed cavity between the two in the gap at both sides and two ends complete closed.
7, the capacitor device with sound absorption cover according to claim 5 is characterized in that:
The main part acoustic board (1-2) of described L shaped or C shape sound absorption cover (1) and sound panel (1-1) form closed cavity in the gap at both sides and two ends complete closed; Bending part is closed cavity or sound panel (1-1) is only arranged.
8, the capacitor device with sound absorption cover according to claim 5 is characterized in that:
Described C shape sound absorption cover (1) has the hole of matching with the conduit connection end of capacitor unit (2) end face, and the conduit connection end of capacitor unit (2) passes the hole on the sound absorption cover (1).
9, the capacitor device with sound absorption cover according to claim 8 is characterized in that:
Described capacitor unit (2) end face is installed C shape sound absorption cover (1), and dull and stereotyped sound absorption cover (1) is installed in bottom surface or side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201041136U CN201178032Y (en) | 2008-03-04 | 2008-03-04 | Capacitor device having noise absorption cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201041136U CN201178032Y (en) | 2008-03-04 | 2008-03-04 | Capacitor device having noise absorption cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201178032Y true CN201178032Y (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201041136U Expired - Fee Related CN201178032Y (en) | 2008-03-04 | 2008-03-04 | Capacitor device having noise absorption cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201178032Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615511B (en) * | 2009-07-31 | 2013-03-13 | 西安交通大学 | Low-noise power capacitor with microperforated panel and solid panel combining structure |
| CN105374349A (en) * | 2015-11-26 | 2016-03-02 | 武汉大学 | Power capacitor noise reduction device based on external composite sound absorption material |
| CN105374552A (en) * | 2015-12-17 | 2016-03-02 | 日新电机（无锡）有限公司 | Capacitor with soundproof cover |
| US9396875B2 (en) | 2013-06-14 | 2016-07-19 | Abb Technology Ltd | Terminal bushing sealing element |
| WO2017162264A1 (en) * | 2016-03-21 | 2017-09-28 | Siemens Aktiengesellschaft | Electrical device and electrical system comprising cooling apparatus |
| CN108538574A (en) * | 2018-03-19 | 2018-09-14 | 李火章 | A kind of capacitor device with noise absorption cover |
-
2008
- 2008-03-04 CN CNU2008201041136U patent/CN201178032Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615511B (en) * | 2009-07-31 | 2013-03-13 | 西安交通大学 | Low-noise power capacitor with microperforated panel and solid panel combining structure |
| US9396875B2 (en) | 2013-06-14 | 2016-07-19 | Abb Technology Ltd | Terminal bushing sealing element |
| CN105374349A (en) * | 2015-11-26 | 2016-03-02 | 武汉大学 | Power capacitor noise reduction device based on external composite sound absorption material |
| CN105374552A (en) * | 2015-12-17 | 2016-03-02 | 日新电机（无锡）有限公司 | Capacitor with soundproof cover |
| CN105374552B (en) * | 2015-12-17 | 2019-07-02 | 日新电机（无锡）有限公司 | Capacitor with acoustic hood |
| WO2017162264A1 (en) * | 2016-03-21 | 2017-09-28 | Siemens Aktiengesellschaft | Electrical device and electrical system comprising cooling apparatus |
| CN108538574A (en) * | 2018-03-19 | 2018-09-14 | 李火章 | A kind of capacitor device with noise absorption cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20170304 |