CN201698903U - Oil-immersed power electronic capacitor - Google Patents
Oil-immersed power electronic capacitor Download PDFInfo
- Publication number
- CN201698903U CN201698903U CN2010201947167U CN201020194716U CN201698903U CN 201698903 U CN201698903 U CN 201698903U CN 2010201947167 U CN2010201947167 U CN 2010201947167U CN 201020194716 U CN201020194716 U CN 201020194716U CN 201698903 U CN201698903 U CN 201698903U
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- terminal
- capacitor
- lower terminal
- sealing ring
- cover plate
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Abstract
The utility model relates to an oil-immersed power electronic capacitor which comprises a case body, a capacitor core set, and a cover plate; one or two pairs of insulated terminals are disposed on the cover plate; each insulated terminal consists of an upper terminal, a lower terminal, a seal ring, a conductive bolt, and a lock nut respectively; the conductive bolt is a T-shaped bolt; a limit boss of the conductive bolt is disposed under the lower terminal; the seal ring is disposed between the lower terminal and the limit boss of the conductive bolt; and the lock nut fixes the upper terminal and the lower terminal at two sides of the cover plate from top to bottom. Locking force of the oil-immersed power electronic capacitor is adjustable externally; sealing performance thereof is not affected by an external force; and the capacitor has the advantages of excellent sealing performance, small volume, and low manufacturing cost.
Description
Technical field
The utility model relates to a kind of oil-immersed type power electronic capacitor.
Background technology
The oil-immersed type power electronic capacitor that generally uses in the market, its structure as shown in Figure 1, comprise housing 10, capacitor core group and cover plate 8, cover plate 8 is provided with a pair of or two pairs of insulated terminals, each insulated terminal is respectively by upper terminal 5, lower terminal 6, sealing ring 4, conducting bolt 1 and locking nut 7 are formed, conducting bolt 1 is cross, on the conducting bolt positive stop lug boss 12, the lower end is equipped with external screw thread, locking nut 7 by conducting bolt 1 lower end from bottom to top with lower terminal 6, upper terminal 5 is fixed on capacitor cover plate 8 both sides, the lead 9 that is electrically connected with capacitor core group is fixed between lower terminal 6 and the locking nut 7, be provided with sealing ring 4 between the positive stop lug boss 12 of conducting bolt 1 and the loam cake 5, the screw portion of conducting bolt positive stop lug boss 12 upper ends is the conducting rod 11 that is connected with outer conducting copper 2.During use, outer conducting copper 2 is fixed on the conducting rod 11 with locking nut 3.In the capacitor use, owing to need that many capacitors are in parallel to be used, therefore, the conducting rod 11 of many capacitor anodes or negative pole conducting bolt positive stop lug boss 12 upper ends is separately fixed on the same outer conducting copper 2.Because factors such as foozle, the height of each capacitor is inconsistent, cause each conducting bolt unbalance stress, can cause the partially conductive bolt to be subjected to pulling force upwards, make nut descend, produce trickle slit, thereby cause the inner impregnation oils of capacitor to be oozed out outside the capacitor casing 10 along the place, slit of sealing ring to the extruding force of sealing ring, as can not in time handling, can cause the damage of capacitor.And this defective often only could be found after the client uses a period of time, need send manufacturer's maintenance back to, has increased the maintenance cost height.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art part, and a kind of oil-immersed type power electronic capacitor is provided, and capacitor sealed insulation terminal sealing performance is not influenced by external force, can improve the sealing property of capacitor, reduces maintenance cost.
The utility model is achieved in that and comprises housing, capacitor core group and cover plate, cover plate is provided with a pair of or two pairs of insulated terminals, each insulated terminal is made up of upper terminal, lower terminal, sealing ring, conducting bolt and locking nut respectively, conducting bolt is a T type bolt, the positive stop lug boss of conducting bolt is located at the below of lower terminal, sealing ring is located between lower terminal and the conducting bolt positive stop lug boss, and locking nut is fixed on the cover plate both sides with upper terminal and lower terminal from top to bottom.The upper end screw rod of conducting bolt is connected with outer conducting copper by locking nut, and when making the screw rod of conducting bolt upper end be subjected to pulling force, conducting bolt lower end positive stop lug boss is to the extruding force raising of sealing ring when many capacitors are in parallel; When many capacitors in parallel and when making screw rod on the conducting bolt be subjected to downward pressure, by being rotated down locking nut is its coupling mechanism force of scalable, recovers the extruding force of conducting bolt lower end positive stop lug boss to sealing ring, thereby, its sealing property is not influenced by external force, has improved sealing property.
A preferred version of the present utility model is: described sealing ring is the cannula-like sealing ring, and the bottom of lower terminal and upper terminal has the sealing ring embedded hole, and described sealing ring upper end is embedded in the upper terminal by lower terminal through embedded hole.Under the effect of locking nut, the lower end positive stop lug boss mutual extrusion sealing ring of upper terminal and conducting bolt, make between terminal and the conducting bolt seamless, the impregnation oils of capacitor inside can not flow out from the junction of terminal and conductive component, good seal performance is carried, and can improve the utmost point shell insulation voltage of terminal.
As shown from the above technical solution, the utility model has changed the locking mode of upper and lower terminal, adopts the upper lock jack panel to lock from top to bottom, and coupling mechanism force is adjustable from the outside, and its sealing property is not subjected to external force to influence good seal performance.In addition,, thereby reduced the needed space of capacitor mounted inside, reduced the volume of capacitor, greatly reduced the manufacturing cost of capacitor because insulated terminal adopts the upper lock jack panel.
Description of drawings
Fig. 1 is existing capacitor arrangement schematic diagram;
Fig. 2 is the utility model structural representation.
Embodiment
As shown in Figure 2, sealing ring 4 is the cannula-like rubber seal, the bottom of lower terminal 6 and upper terminal 5 has sealing ring 4 embedded holes, sealing ring 4 upper ends are passed cover plate 8 through embedded hole by lower terminal 5 and are embedded in the upper terminal 3, conducting bolt 1 is a T type bolt, conducting bolt 1 lower end positive stop lug boss 12 is positioned at lower terminal 6 belows, locking nut 7 is fixed on cover plate with upper terminal 5 and lower terminal 6 from top to bottom by cover plate 8 tops, and about in the of 8 both sides, the screw portion of the conducting bolt 1 of locking nut 7 tops is the conducting rod 11 that is connected with outer copper line 2, and the lead 9 that is electrically connected with capacitor core group is welded on the lower end positive stop lug boss 12 of conducting bolt 1.
During use, outer conducting copper 2 is fixed on the conducting rod 11 with locking nut 3.By adjusting lock nut 7, can regulate conducting bolt 1 suffered pulling force or pressure easily.Because locking nut is tightened from cover plate 8 outsides, has reduced the needed space of capacitor mounted inside, can reduce the volume of capacitor, reduce the manufacturing cost of capacitor.
Claims (2)
1. oil-immersed type power electronic capacitor, comprise housing (10), capacitor core group and cover plate (8), cover plate (8) is provided with a pair of or two pairs of insulated terminals, each insulated terminal is respectively by upper terminal (5), lower terminal (6), sealing ring (4), conducting bolt (1) and locking nut (7) are formed, it is characterized in that: conducting bolt (1) is a T type bolt, the positive stop lug boss (12) of conducting bolt (1) is located at the below of lower terminal (6), sealing ring (4) is located between lower terminal (6) and the conducting bolt positive stop lug boss (12), and locking nut (7) is fixed on cover plate (8) both sides with upper terminal (5) and lower terminal (6) from top to bottom.
2. oil-immersed type power electronic capacitor according to claim 1, it is characterized in that: described sealing ring (4) is the cannula-like sealing ring, the bottom of lower terminal (6) and upper terminal (5) has sealing ring (4) embedded hole, and described sealing ring (4) upper end is embedded in the upper terminal (5) by lower terminal (6) through embedded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201947167U CN201698903U (en) | 2010-05-13 | 2010-05-13 | Oil-immersed power electronic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201947167U CN201698903U (en) | 2010-05-13 | 2010-05-13 | Oil-immersed power electronic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201698903U true CN201698903U (en) | 2011-01-05 |
Family
ID=43400149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201947167U Expired - Fee Related CN201698903U (en) | 2010-05-13 | 2010-05-13 | Oil-immersed power electronic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201698903U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700498A (en) * | 2013-12-21 | 2014-04-02 | 铜陵源丰电子有限责任公司 | Long-service-life capacitor |
| CN104235522A (en) * | 2013-06-10 | 2014-12-24 | 哈米尔顿森德斯特兰德公司 | Duct with electrically conductive coating |
| CN104465091A (en) * | 2014-11-21 | 2015-03-25 | 安徽铜峰电子股份有限公司 | Low inductance multi-core group power capacitor |
-
2010
- 2010-05-13 CN CN2010201947167U patent/CN201698903U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235522A (en) * | 2013-06-10 | 2014-12-24 | 哈米尔顿森德斯特兰德公司 | Duct with electrically conductive coating |
| CN104235522B (en) * | 2013-06-10 | 2019-03-12 | 哈米尔顿森德斯特兰德公司 | Pipeline with conductive coating |
| CN103700498A (en) * | 2013-12-21 | 2014-04-02 | 铜陵源丰电子有限责任公司 | Long-service-life capacitor |
| CN104465091A (en) * | 2014-11-21 | 2015-03-25 | 安徽铜峰电子股份有限公司 | Low inductance multi-core group power capacitor |
| CN104465091B (en) * | 2014-11-21 | 2017-08-29 | 安徽铜峰电子股份有限公司 | Low inductance multicore group power capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20130513 |