CN103700538A - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN103700538A CN103700538A CN201310749261.9A CN201310749261A CN103700538A CN 103700538 A CN103700538 A CN 103700538A CN 201310749261 A CN201310749261 A CN 201310749261A CN 103700538 A CN103700538 A CN 103700538A
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- China
- Prior art keywords
- push rod
- drive plate
- wear
- groove
- resistant block
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- Arc-Extinguishing Devices That Are Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a vacuum circuit breaker, comprising a shell and a vacuum arc-extinguishing chamber, wherein the upper end of the vacuum arc-extinguishing chamber is provided with a current-conducting plate, a movable contact at the lower end of the vacuum arc-extinguishing chamber is connected with a push rod, the lower part of the push rod is provided with a driving plate, one end of the driving plate is arranged on supporting point, the upper end of the driving plate is provided with an upper groove, a wear-resistant block is arranged in the upper groove, the center of the wear-resistant block is provided with a central hole, a compressing spring is pressed between the driving plate and a step in the middle of the push rod, the rear end of the compressing spring is pressed on the front end face of the wear-resistant block, the lower half part of the driving plate is provided with an arc-shaped groove, the rear end of the push rod penetrates through piercing holes, the tail end of the push rod is provided with a limiting nut which is adapted to the arc-shaped groove in contour shape, the area of the limiting nut is smaller than the area of the arc-shaped groove, and the limiting nut is enabled to be positioned in the arc-shaped groove. After the structure is adopted, stress concentration caused by complete rigid vertical connection between the driving plate and the push rod traditionally is completely changed, and wear is effectively reduced.
Description
Technical field
The present invention relates to a kind of circuit breaker, specifically a kind of vacuum circuit-breaker, belongs to electric power system controller switching equipment technical field.
Background technology
Existing vacuum circuit-breaker generally comprises fixed contact and moving contact, moving contact has actuating arm to drive knee-action to realize the operation of divide-shut brake, and drive plate is all generally arranges vertical with insulated tension pole, adopt existing this structure, due to needs transferring power between two vertical member, inevitably at the intersection point place of two parts, cause larger stress to concentrate, therefore in practice, usually need these part parts to overhaul replacing, both delay man-hour, caused again the waste of fund cost.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of simple in structure, use reliable, cost-saving vacuum circuit-breaker.
In order to solve the problems of the technologies described above, vacuum circuit-breaker of the present invention, comprise housing and be arranged on the vacuum interrupter in housing, the upper end of vacuum interrupter has one and is used for the conductive plate being connected with fixed contact conduction, the lower end moving contact of vacuum interrupter connects the push rod being positioned at outside housing by moving contact part, the bottom of push rod has and the vertically disposed drive plate of push rod, wherein one end of drive plate is arranged on a fulcrum and makes drive plate around a spot wobble, drive plate upper end is provided with the upper groove of hemisphere face shape, in upper groove, be provided with the wear-resistant block coordinating with upper groove, wear-resistant block center is provided with the centre bore passing for push rod, between the step at drive plate and push rod middle part, be pressed with Compress Spring, Compress Spring rear end is pressed on wear-resistant block front end face, it is semicircular deep-slotted chip breaker that the latter half of drive plate is provided with the cross sectional shape being in the same center line with upper groove, putting back-end is through the hole that passes of upper groove and the setting of deep-slotted chip breaker center, push rod end is provided with stop nut, the contour shape of stop nut and deep-slotted chip breaker contour shape adapt, and the area of stop nut is less than the area of deep-slotted chip breaker and makes stop nut be positioned at deep-slotted chip breaker.
Described deep-slotted chip breaker is the inside groove being arranged in drive plate, drive plate is arranged to be separated into two-part splicing construction from upper groove centerline, inside groove 11 is for two parts and lay respectively at wherein on a drive plate, and wear-resistant block and stop nut are connected and fixed two parts of drive plate by securing member after being arranged in inside groove.
Described deep-slotted chip breaker is the low groove that is arranged on the hemisphere face structure of drive plate rear end face, and wear-resistant block and stop nut are arranged on respectively in upper groove and low groove.
The rear end of described wear-resistant block is the hemisphere face structure matching with upper groove.
On the front end face of described wear-resistant block, be provided with draw-in groove, the rear end of Compress Spring is stuck in draw-in groove.
Described wear-resistant block is made by high-abrasive material.
Adopt after such structure, due to the sunk part arranging on drive plate and deep-slotted chip breaker structure, stop nut is also set to arcuate structure and makes the area of stop nut be less than the area of deep-slotted chip breaker, make thus the stop nut that is positioned at deep-slotted chip breaker rotate within the specific limits, thoroughly having changed traditionally the vertical stress bringing that is connected of perfect rigidity between drive plate and push rod concentrates, simultaneously in drive plate swing process, Compress Spring contacts with drive plate by wear-resistant block, not direct and drive plate rubs, and has effectively reduced wearing and tearing; In addition, between wear-resistant block and motion arm, adopt sphere to coordinate, further reduced wearing and tearing, guaranteed transmitting accuracy, improved the stable of circuit breaker running parameter.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the A place structure for amplifying schematic diagram of Fig. 1;
Fig. 3 is the partial structurtes schematic diagram of drive plate in the embodiment of the present invention two.
Embodiment
Below in conjunction with the drawings and specific embodiments, vacuum circuit-breaker of the present invention is described in further detail.
Embodiment mono-:
As shown in the figure, vacuum circuit-breaker of the present invention, comprise housing 1 and be arranged on the vacuum interrupter 2 in housing, the upper end of vacuum interrupter 2 has one and is used for the conductive plate 3 being connected with fixed contact conduction, the lower end moving contact of vacuum interrupter connects the push rod 4 being positioned at outside housing by moving contact part, the bottom of push rod 4 has and the vertically disposed drive plate 5 of push rod, wherein one end of drive plate 5 is arranged on a fulcrum and makes drive plate 5 around a spot wobble, drive plate 5 upper ends are provided with the upper groove 6 of hemisphere face shape, in upper groove 6, be provided with the wear-resistant block 7 coordinating with upper groove 6, wear-resistant block 7 centers are provided with the centre bore passing for push rod, between the step at drive plate 5 and push rod 2 middle parts, be pressed with Compress Spring 8, Compress Spring 8 rear ends are pressed on wear-resistant block front end face, it is semicircular deep-slotted chip breaker that the latter half of drive plate 5 is provided with the cross sectional shape being in the same center line with upper groove 6, push rod 4 rear ends arrange through upper groove 6 and deep-slotted chip breaker center passes hole 9, upper groove 6 and deep-slotted chip breaker center are all positioned at the throughhole portions of drive plate, push rod 2 ends are provided with stop nut 10, the contour shape of stop nut 10 and deep-slotted chip breaker contour shape adapt, the area of stop nut 10 is less than the area of deep-slotted chip breaker and makes stop nut 10 be positioned at deep-slotted chip breaker, the rear end of wear-resistant block 7 is the hemisphere face structures that match with upper groove 6, on the front end face of wear-resistant block 7, be provided with draw-in groove 13, the rear end of Compress Spring 8 is stuck in draw-in groove 13, wear-resistant block 7 is made by high-abrasive material.
In the present embodiment, deep-slotted chip breaker is the inside groove 11 being arranged in drive plate 5, drive plate 5 is arranged to be separated into two-part splicing construction from upper groove 6 centerline, inside groove 11 is for two parts and lay respectively at wherein on a drive plate, and wear-resistant block 5 and stop nut 10 are arranged on inside groove 11 and by securing member, two parts of drive plate are connected and fixed after interior.
Embodiment bis-:
As shown in the figure, the difference of the present embodiment and embodiment mono-is that deep-slotted chip breaker is the low groove 12 that is arranged on the hemisphere face structure of drive plate 5 rear end faces, wear-resistant block 5 and stop nut 10 are arranged on respectively in upper groove 6 and low groove 12, and this all-in-one-piece structure is easy for installation, better reliability.
Claims (6)
1. a vacuum circuit-breaker, comprise housing (1) and be arranged on the vacuum interrupter (2) in housing, the upper end of vacuum interrupter (2) has one and is used for the conductive plate (3) being connected with fixed contact conduction, the moving contact of vacuum interrupter lower end connects the push rod (4) being positioned at outside housing by moving contact part, the bottom of push rod (4) has and the vertically disposed drive plate of push rod (5), wherein one end of drive plate (5) is arranged on a fulcrum (14) and goes up and make drive plate (5) around a spot wobble, it is characterized in that: described drive plate (5) upper end is provided with the upper groove (6) of hemisphere face shape, in described upper groove (6), be provided with the wear-resistant block (7) coordinating with upper groove (6), wear-resistant block (7) center is provided with the centre bore passing for push rod, between the step at drive plate (5) and push rod (2) middle part, be pressed with Compress Spring (8), Compress Spring (8) rear end is pressed on wear-resistant block front end face, it is semicircular deep-slotted chip breaker that the latter half of drive plate (5) is provided with the cross sectional shape being in the same center line with upper groove (6), push rod (4) rear end passes hole (9) through the setting of upper groove (6) and deep-slotted chip breaker center, described push rod (2) end is provided with stop nut (10), contour shape and the deep-slotted chip breaker contour shape of stop nut (10) upper surface adapt, and the area of stop nut (10) is less than the area of deep-slotted chip breaker and makes stop nut (10) be positioned at deep-slotted chip breaker.
2. according to vacuum circuit-breaker claimed in claim 1, it is characterized in that: described deep-slotted chip breaker is for being arranged on the inside groove (11) in drive plate (5), drive plate (5) is arranged to be separated into two-part splicing construction from upper groove (6) centerline, inside groove (11) is for two parts and lay respectively at wherein on a drive plate, and wear-resistant block (5) and stop nut (10) are arranged on inside groove (11) and by securing member, two parts of drive plate are connected and fixed after interior.
3. according to vacuum circuit-breaker claimed in claim 1, it is characterized in that: described deep-slotted chip breaker is for being arranged on the low groove (12) of the hemisphere face structure of drive plate (5) rear end face, and wear-resistant block (5) and stop nut (10) are arranged on respectively in upper groove (6) and low groove (12).
4. according to the vacuum circuit-breaker described in claim 2 or 3, it is characterized in that: the rear end of described wear-resistant block (7) is the hemisphere face structure matching with upper groove (6).
5. according to the vacuum circuit-breaker described in claim 2 or 3, it is characterized in that: on the front end face of described wear-resistant block (7), be provided with draw-in groove (13), the rear end of Compress Spring (8) is stuck in draw-in groove (13).
6. according to the vacuum circuit-breaker described in claim 2 or 3, it is characterized in that: described wear-resistant block (7) is made by high-abrasive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749261.9A CN103700538B (en) | 2013-12-31 | 2013-12-31 | Vacuum circuit-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749261.9A CN103700538B (en) | 2013-12-31 | 2013-12-31 | Vacuum circuit-breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103700538A true CN103700538A (en) | 2014-04-02 |
| CN103700538B CN103700538B (en) | 2015-12-23 |
Family
ID=50362032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310749261.9A Active CN103700538B (en) | 2013-12-31 | 2013-12-31 | Vacuum circuit-breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103700538B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111681906A (en) * | 2020-03-13 | 2020-09-18 | 浙江城电电气有限公司 | Vacuum circuit breaker |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5393666U (en) * | 1976-12-29 | 1978-07-31 | ||
| JP2004342359A (en) * | 2003-05-13 | 2004-12-02 | Mitsubishi Electric Corp | Vacuum switching device |
| CN101383244A (en) * | 2008-10-15 | 2009-03-11 | 镇江大全伊顿电器有限公司 | Vacuum circuit-breaker |
| CN102412088A (en) * | 2011-12-19 | 2012-04-11 | 大全集团有限公司 | Breaker manipulator |
| CN202473736U (en) * | 2011-12-19 | 2012-10-03 | 大全集团有限公司 | Breaker motion arm |
| CN203351490U (en) * | 2013-05-23 | 2013-12-18 | 广东电网公司佛山供电局 | Permanent magnet drive oil immersion vacuum circuit breaker arranged in 10 kV oil immersion transformer |
| CN203746740U (en) * | 2013-12-31 | 2014-07-30 | 北京交通大学长三角研究院 | Vacuum circuit breaker |
-
2013
- 2013-12-31 CN CN201310749261.9A patent/CN103700538B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5393666U (en) * | 1976-12-29 | 1978-07-31 | ||
| JP2004342359A (en) * | 2003-05-13 | 2004-12-02 | Mitsubishi Electric Corp | Vacuum switching device |
| CN101383244A (en) * | 2008-10-15 | 2009-03-11 | 镇江大全伊顿电器有限公司 | Vacuum circuit-breaker |
| CN102412088A (en) * | 2011-12-19 | 2012-04-11 | 大全集团有限公司 | Breaker manipulator |
| CN202473736U (en) * | 2011-12-19 | 2012-10-03 | 大全集团有限公司 | Breaker motion arm |
| CN203351490U (en) * | 2013-05-23 | 2013-12-18 | 广东电网公司佛山供电局 | Permanent magnet drive oil immersion vacuum circuit breaker arranged in 10 kV oil immersion transformer |
| CN203746740U (en) * | 2013-12-31 | 2014-07-30 | 北京交通大学长三角研究院 | Vacuum circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111681906A (en) * | 2020-03-13 | 2020-09-18 | 浙江城电电气有限公司 | Vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103700538B (en) | 2015-12-23 |
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