CN105405652A - Low-noise power capacitor - Google Patents
Low-noise power capacitor Download PDFInfo
- Publication number
- CN105405652A CN105405652A CN201510934599.0A CN201510934599A CN105405652A CN 105405652 A CN105405652 A CN 105405652A CN 201510934599 A CN201510934599 A CN 201510934599A CN 105405652 A CN105405652 A CN 105405652A
- Authority
- CN
- China
- Prior art keywords
- shell
- power capacitor
- low
- noise power
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/35—Feed-through capacitors or anti-noise capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
Abstract
The invention discloses a low-noise power capacitor, which comprises a shell, a core, a sleeve and a mass block, wherein the core is arranged in the shell and comprisesa positive electrode and a negative electrode; the sleeve comprises a first sleeve and a second sleeve; one end of the first sleeve is connected with the positive electrode of the core; the other end of the first sleeve is connected with an external power supply; one end of the second sleeve is connected with the negative electrode of the core; the other end of the second sleeve is connected with the external power supply; the shell comprises a shell body, a shell bottom and a shell cover; the shell bottom is arranged at the bottom of the shell body; the shell cover is arranged at the top of the shell body; and the mass block is arranged at the inner side of the shell cover. According to the low-noise power capacitor disclosed by the invention, the technical effect of noise reduction is achieved by changing the structure of the power capacitor; the low-noise power capacitor has a noise reduction effect on various harmonic excitations in a power system; an extra sound arrester is no longer required; the cost is saved; and installation and maintenance are relatively convenient.
Description
Technical field
The present invention relates to high-voltage power capacitor technical field, especially relate to a kind of low-noise power capacitor.
Background technology
Power capacitor, for the capacitor of electric power system and electrical equipment.Any two pieces of metallic conductors, centre dielectric separates, and namely forms a capacitor.
At present, the power capacitor casing consistency of thickness everywhere of high pressure AC/DC Filters Capacitor banks, noise abatement mainly relies on power capacitor casing increases sound arrester outward, the general Sound absorbing spectrum narrow range of these sound arresters, affect product heat radiation, the shortcomings such as inconvenience maintenance.
Summary of the invention
In order to overcome above technical problem, the present invention aims to provide a kind of low-noise power capacitor realizing noise reduction by changing power capacitor self structure.
In order to reach foregoing invention object, solve the technical scheme that its technical problem adopts as follows:
A kind of low-noise power capacitor, comprises housing, fuse, sleeve pipe and mass, wherein,
Described fuse is built in described enclosure interior, has positive and negative two electrodes;
Described sleeve pipe comprises the first sleeve pipe and the second sleeve pipe, and one end of described first sleeve pipe connects the positive pole of described fuse, and the other end connects external power source; One end of described second sleeve pipe connects the negative pole of described fuse, and the other end connects external power source;
At the bottom of the shell that described housing comprises body, be located at bottom described body, and be located at the cap at described body top; And
Described mass is arranged at inside described cap.
Preferably, described mass is arranged at the center inside described cap.
Preferably, be welded to connect with described body at the bottom of described shell, its thickness is several times as much as the thickness of described body.
Preferably, the thickness at the bottom of described shell is 4-10 times of described body thickness.
Preferably, described cap and described body are welded to connect, and its thickness is identical with described body.
Preferably, at the bottom of described shell, body and cap are made by steel plate.
Preferably, described mass and described cap are welded to connect.
The present invention, owing to adopting above technical scheme, makes it compared with prior art, has following advantage and good effect:
1, low-noise power capacitor of the present invention all can have noise reduction to each harmonic excitation in electric power system;
2, during power capacitor of the present invention work, at the bottom of shell and mass can suppress the vibration of the housing caused by fuse, thus effectively reduce the noise of power capacitor;
3, low-noise power capacitor of the present invention decreases additional sound arrester, cost-saving, convenient for installation and maintenance.
Accompanying drawing explanation
By reference to the accompanying drawings, by detailed description hereafter, above-mentioned and other feature and advantage of the present invention more clearly can be understood, wherein:
Fig. 1 is the structural representation of a kind of low-noise power capacitor of the present invention;
Fig. 2 is the structural representation of the housing of a kind of low-noise power capacitor of the present invention.
Primary symbols illustrates: 1-fuse; 2-housing; 3-body; At the bottom of 4-shell; 5-cap; 6-mass; 7-first sleeve pipe; 8-second sleeve pipe.
Embodiment
Below with reference to accompanying drawing of the present invention; clear, complete description and discussion are carried out to the technical scheme in the embodiment of the present invention; obviously; as described herein is only a part of example of the present invention; it is not whole examples; based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to protection scope of the present invention.
As illustrated in fig. 1 and 2, the invention discloses a kind of low-noise power capacitor, comprise housing 2, fuse 1, sleeve pipe and mass 6, wherein,
It is inner that described fuse 1 is built in described housing 2, has positive and negative two electrodes, as electric capacity;
Described sleeve pipe comprises the first sleeve pipe 7 and the second sleeve pipe 8, and one end of described first sleeve pipe 7 connects the positive pole of described fuse 1, and the other end connects external power source; One end of described second sleeve pipe 8 connects the negative pole of described fuse 1, and the other end connects external power source;
At the bottom of the shell that described housing 2 comprises body 3, be located at bottom described body 34, and be located at the cap 5 at described body 3 top; And
Described mass 6 is arranged at inside described cap 5.
In the present embodiment, by increasing mass 6 in cap 5 side, decrease conventional additional sound arrester, cost-saving, convenient for installation and maintenance.Meanwhile, the Noise Reduction of each harmonic excitation in electric power system is conducive to.Concrete, when power capacitor work, at the bottom of shell 4 and mass 6 can suppress the vibration of the housing 2 caused by fuse 1, thus the noise of effective reduction power capacitor.
In preferred embodiment, described mass 6 is arranged at the center inside described cap 5.
Preferably, at the bottom of described shell, 4 are welded to connect with described body 3, and its thickness is several times as much as the thickness of described body 3.Preferably, the thickness at the bottom of described shell is 4-10 times of described body thickness, effectively can reduce the noise of 5-10dB.
Preferably, described cap 5 is welded to connect with described body 3, and its thickness is identical with described body 3.
Preferably, at the bottom of described shell 4, body 3 and cap 5 are made by steel plate.
Preferably, described mass 6 is welded to connect with described cap 5, but the present embodiment does not limit its concrete connected mode.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1. a low-noise power capacitor, is characterized in that, comprises housing, fuse, sleeve pipe and mass, wherein,
Described fuse is built in described enclosure interior, has positive and negative two electrodes;
Described sleeve pipe comprises the first sleeve pipe and the second sleeve pipe, and one end of described first sleeve pipe connects the positive pole of described fuse, and the other end connects external power source; One end of described second sleeve pipe connects the negative pole of described fuse, and the other end connects external power source;
At the bottom of the shell that described housing comprises body, be located at bottom described body, and be located at the cap at described body top;
Described mass is arranged at inside described cap.
2. a kind of low-noise power capacitor according to claim 1, is characterized in that, described mass is arranged at the center inside described cap.
3. a kind of low-noise power capacitor according to claim 1, is characterized in that, be welded to connect with described body at the bottom of described shell, the thickness at the bottom of described shell is several times as much as the thickness of described body.
4. a kind of low-noise power capacitor according to claim 1, is characterized in that, the thickness at the bottom of described shell is 4-10 times of described body thickness.
5. a kind of low-noise power capacitor according to claim 1, is characterized in that, described cap and described body are welded to connect, and its thickness is identical with described body.
6. a kind of low-noise power capacitor according to claim 1, is characterized in that, at the bottom of described shell, body and cap make by steel plate.
7. a kind of low-noise power capacitor according to claim 1, is characterized in that, described mass and described cap are welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934599.0A CN105405652A (en) | 2015-12-15 | 2015-12-15 | Low-noise power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934599.0A CN105405652A (en) | 2015-12-15 | 2015-12-15 | Low-noise power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105405652A true CN105405652A (en) | 2016-03-16 |
Family
ID=55471074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510934599.0A Pending CN105405652A (en) | 2015-12-15 | 2015-12-15 | Low-noise power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105405652A (en) |
Citations (4)
| 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 |
| CN202189678U (en) * | 2011-07-08 | 2012-04-11 | 日新电机（无锡）有限公司 | Power capacitor with noise shielding assembly |
| CN203055676U (en) * | 2012-12-31 | 2013-07-10 | 新东北电气集团电力电容器有限公司 | A low-noise power capacitor |
| CN205211599U (en) * | 2015-12-15 | 2016-05-04 | 上海思源电力电容器有限公司 | Low noise power capacitor |
-
2015
- 2015-12-15 CN CN201510934599.0A patent/CN105405652A/en active Pending
Patent Citations (4)
| 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 |
| CN202189678U (en) * | 2011-07-08 | 2012-04-11 | 日新电机（无锡）有限公司 | Power capacitor with noise shielding assembly |
| CN203055676U (en) * | 2012-12-31 | 2013-07-10 | 新东北电气集团电力电容器有限公司 | A low-noise power capacitor |
| CN205211599U (en) * | 2015-12-15 | 2016-05-04 | 上海思源电力电容器有限公司 | Low noise power capacitor |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |