CN105788957A - Low-voltage AC vacuum circuit breaker and closing method thereof - Google Patents
Low-voltage AC vacuum circuit breaker and closing method thereof Download PDFInfo
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- CN105788957A CN105788957A CN201410824533.1A CN201410824533A CN105788957A CN 105788957 A CN105788957 A CN 105788957A CN 201410824533 A CN201410824533 A CN 201410824533A CN 105788957 A CN105788957 A CN 105788957A
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Abstract
The invention provides a low-voltage AC vacuum circuit breaker and a closing method thereof. The low-voltage circuit breaker plays overload, short-circuit and undervoltage protection roles in a circuit and power supply equipment as a low-voltage apparatus. The low-voltage AC vacuum circuit breaker comprises an insulating framework (1), wherein a vacuum switch tube (8) is arranged in the insulating framework and comprises a vacuum tube fixed contact (9) and a vacuum tube moving contact (10); the vacuum tube moving contact is connected with a turning wall (1); the turning wall is connected with a closing rotating shaft (13); the closing rotating shaft is connected with a closing plate (14); the closing plate is connected with a breaking spring (3); the vacuum tube moving contact is driven to move; an undervoltage release coil (15) is arranged outside the insulating framework and is connected with a shunt excitation coil (6); an half shaft (17) is arranged at the end of the shunt excitation coil and is connected with an half shaft tension spring (7); the half shaft tension spring is connected with a breaking line (18); and a gap is formed in the half shaft. The low-voltage AC vacuum circuit breaker is applied to a switch with below 1140V voltage.
Description
Technical field:
The present invention relates to a kind of low-voltage alternating-current vacuum circuit breaker and closing switch method thereof.
Background technology:
Low-voltage circuit breaker is as a kind of low-voltage electrical apparatus; it is widely used in distribution network; play circuit and the overload of power-supply device, short circuit and under-voltage protection effect; it is typically all in low-voltage distributing line with all-purpose air breaker as the control in circuit and protection equipment at present; this chopper is all exposed due to its contact portion; therefore in deciliter process; the electric spark that contact produces all exposes in atmosphere; if containing fuel gas in air, once touch this electric spark it is possible to produce explosion danger.
Summary of the invention:
It is an object of the invention to provide a kind of low-voltage alternating-current vacuum circuit breaker and closing switch method thereof.
Above-mentioned purpose is realized by following technical scheme:
nullA kind of low-voltage alternating-current vacuum circuit breaker，Its composition includes: dielectric framework and metal frame，Described metal frame is connected to tripping spring、Closing coil、Buckle spring、Shunt opening coil、Semiaxis extension spring，It is provided with vacuum switch tube in described dielectric framework，Described vacuum switch tube includes vacuum tube static contact and vacuum tube moving contact，Described vacuum tube static contact is fixed in described dielectric framework by electrode holder，Described vacuum tube moving contact is connected with turning wall，The described wall that turns is connected with combined floodgate rotating shaft，Described combined floodgate rotating shaft is connected with combined floodgate plate，Described combined floodgate plate is connected with tripping spring，Drive described vacuum tube moving contact motion，Outside described dielectric framework, under-voltage trip coil is installed，Described under-voltage trip coil is connected with shunt opening coil，Described under-voltage trip coil end is provided with under-voltage release stage clip，Described shunt opening coil-end is provided with semiaxis，Described semiaxis is connected with semiaxis extension spring，Described semiaxis extension spring is connected with departure brake cable，Described semiaxis is provided with breach.
Described low-voltage alternating-current vacuum circuit breaker, described combined floodgate plate is connected with slide rail, and described slide rail is connected with rotating shaft, and described rotating shaft is connected with buckle, and described buckle is connected with described buckle spring, and described rotating shaft is fixed on described metal frame.
Described low-voltage alternating-current vacuum circuit breaker, described combined floodgate plate is fixed with auxiliary pressing plate, and described auxiliary pressing plate is connected with described under-voltage release stage clip.
A kind of closing switch method of described low-voltage alternating-current vacuum circuit breaker, the method step is as follows:
nullAfter on-off control system sends reclosing command，Closing coil obtains electric，Its electric magnet produces powerful magnetic force，Ferromagnetic combined floodgate plate is attracted to overcome the counteracting force of tripping spring to rotate counterclockwise along combined floodgate rotating shaft rapidly，Its connecting lever promotes and moves on vacuum tube moving contact，It is in close contact with static contact，Vacuum tube is made to be in closing position，Simultaneously the close a floodgate top of plate moves to left，Compression tripping spring no longer restriction keep the connecting lever of buckle，Keep buckle bottom left swing under the effect of buckle extension spring，Cross the breach of semiaxis，After feed motion puts in place，Closing coil dead electricity，There is the trend replying original gate-dividing state in mechanism under the retroaction of tripping spring，But now semiaxis has rotating clockwise of certain angle under the effect of semiaxis extension spring，Its breach corner angle block maintenance buckle just，So both maintain the connecting lever of buckle，Block again combined floodgate plate，Sleeve mechanism is maintained at "on" position，Making process terminates.
Beneficial effects of the present invention:
Volume of the present invention is little, lightweight, arc extinguishing, good insulation preformance, and compact conformation is easy to operate, is widely used, has shunted exciter tripping separating brake, undervoltage tripping separating brake, three kinds of modes of hand tripping separating brake in below voltage 1140V switchs.
After on-off control system sends shunted exciter tripping instruction, chopper shunt opening coil obtains electric, its electromagnetic actuation, driving semiaxis to rotate counterclockwise certain angle, the breach of semiaxis loses the stop keeping buckle, keeps the connecting lever of buckle to lose the stop of involutory flashboard therewith, combined floodgate plate turns clockwise along combined floodgate rotating shaft rapidly under the effect of tripping spring, its connecting lever drives vacuum tube moving contact to move down, and departs from rapidly static contact, makes vacuum tube be transferred to disjunction state by Guan Bi.Meanwhile, the rotation of combined floodgate plate has driven auxiliary press plate rotary, again under-voltage trip coil is produced compacting, ready for the reliable adhesive of under-voltage trip coil.
After switch dead electricity or control system send undervoltage tripping instruction, chopper under-voltage trip coil dead electricity, its electric magnet ejects under the effect of under-voltage release stage clip, push up to the prominent position of semiaxis, making semiaxis rotate counterclockwise, then cause vacuum tube disjunction, subsequent action is with shunted exciter tripping separating brake.
At on-off control, protection system jam; or shunt opening, undervoltage tripping were when all losing efficacy; emergent manual brake separating can be selected; hand tripping separating brake have employed brake cable hands separating device; when needs manual brake separating; pull hands separating brake line, drive semiaxis to rotate counterclockwise, separating brake can be realized as shunt opening, undervoltage tripping.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of the present invention.
Detailed description of the invention:
Embodiment 1:
nullA kind of low-voltage alternating-current vacuum circuit breaker，Its composition includes: dielectric framework 1 and metal frame 2，Described metal frame is connected to tripping spring 3、Closing coil 4、Buckle spring 5、Shunt opening coil 6、Semiaxis extension spring 7，Vacuum switch tube 8 it is provided with in described dielectric framework，Described vacuum switch tube includes vacuum tube static contact 9 and vacuum tube moving contact 10，Described vacuum tube static contact is fixed in described dielectric framework by electrode holder 11，Described vacuum tube moving contact is connected with turning wall 12，The described wall that turns is connected with combined floodgate rotating shaft 13，Described combined floodgate rotating shaft is connected with combined floodgate plate 14，Described combined floodgate plate is connected with tripping spring，Drive described vacuum tube moving contact motion，Under-voltage trip coil 15 is installed outside described dielectric framework，Described under-voltage trip coil is connected with shunt opening coil 6，Described under-voltage trip coil end is provided with under-voltage release stage clip 16，Described shunt opening coil-end is provided with semiaxis 17，Described semiaxis is connected with semiaxis extension spring 7，Described semiaxis extension spring is connected with departure brake cable 18，Described semiaxis is provided with breach.
Embodiment 2:
Low-voltage alternating-current vacuum circuit breaker according to embodiment 1, described combined floodgate plate 14 is connected with slide rail 19, and described slide rail is connected with rotating shaft 20, and described rotating shaft is connected with buckle 21, described buckle is connected with described buckle spring 5, and described rotating shaft is fixed on described metal frame.
Embodiment 3:
Low-voltage alternating-current vacuum circuit breaker according to embodiment 1, described combined floodgate plate is fixed with auxiliary pressing plate, and described auxiliary pressing plate is connected with described under-voltage release stage clip.
Embodiment 4:
The closing switch method of the low-voltage alternating-current vacuum circuit breaker that one of a kind of embodiment 1-3 is described, the method step is as follows:
nullAfter on-off control system sends reclosing command，Closing coil obtains electric，Its electric magnet produces powerful magnetic force，Ferromagnetic combined floodgate plate is attracted to overcome the counteracting force of tripping spring to rotate counterclockwise along combined floodgate rotating shaft rapidly，Its connecting lever promotes and moves on vacuum tube moving contact，It is in close contact with static contact，Vacuum tube is made to be in closing position，Simultaneously the close a floodgate top of plate moves to left，Compression tripping spring no longer restriction keep the connecting lever of buckle，Keep buckle bottom left swing under the effect of buckle extension spring，Cross the breach of semiaxis，After feed motion puts in place，Closing coil dead electricity，There is the trend replying original gate-dividing state in mechanism under the retroaction of tripping spring，But now semiaxis has rotating clockwise of certain angle under the effect of semiaxis extension spring，Its breach corner angle block maintenance buckle just，So both maintain the connecting lever of buckle，Block again combined floodgate plate，Sleeve mechanism is maintained at "on" position，Making process terminates.
Claims (4)
- null1. a low-voltage alternating-current vacuum circuit breaker，Its composition includes: dielectric framework and metal frame，It is characterized in that: described metal frame is connected to tripping spring、Closing coil、Buckle spring、Shunt opening coil、Semiaxis extension spring，It is provided with vacuum switch tube in described dielectric framework，Described vacuum switch tube includes vacuum tube static contact and vacuum tube moving contact，Described vacuum tube static contact is fixed in described dielectric framework by electrode holder，Described vacuum tube moving contact is connected with turning wall，The described wall that turns is connected with combined floodgate rotating shaft，Described combined floodgate rotating shaft is connected with combined floodgate plate，Described combined floodgate plate is connected with tripping spring，Drive described vacuum tube moving contact motion，Outside described dielectric framework, under-voltage trip coil is installed，Described under-voltage trip coil is connected with shunt opening coil，Described under-voltage trip coil end is provided with under-voltage release stage clip，Described shunt opening coil-end is provided with semiaxis，Described semiaxis is connected with semiaxis extension spring，Described semiaxis extension spring is connected with departure brake cable，Described semiaxis is provided with breach.
- 2. low-voltage alternating-current vacuum circuit breaker according to claim 1, it is characterized in that: described combined floodgate plate is connected with slide rail, and described slide rail is connected with rotating shaft, and described rotating shaft is connected with buckle, described buckle is connected with described buckle spring, and described rotating shaft is fixed on described metal frame.
- 3. low-voltage alternating-current vacuum circuit breaker according to claim 1, is characterized in that: being fixed with auxiliary pressing plate on described combined floodgate plate, described auxiliary pressing plate is connected with described under-voltage release stage clip.
- 4. a closing switch method for low-voltage alternating-current vacuum circuit breaker described for one of claim 1-3, is characterized in that: the method step is as follows:nullAfter on-off control system sends reclosing command，Closing coil obtains electric，Its electric magnet produces powerful magnetic force，Ferromagnetic combined floodgate plate is attracted to overcome the counteracting force of tripping spring to rotate counterclockwise along combined floodgate rotating shaft rapidly，Its connecting lever promotes and moves on vacuum tube moving contact，It is in close contact with static contact，Vacuum tube is made to be in closing position，Simultaneously the close a floodgate top of plate moves to left，Compression tripping spring no longer restriction keep the connecting lever of buckle，Keep buckle bottom left swing under the effect of buckle extension spring，Cross the breach of semiaxis，After feed motion puts in place，Closing coil dead electricity，There is the trend replying original gate-dividing state in mechanism under the retroaction of tripping spring，But now semiaxis has rotating clockwise of certain angle under the effect of semiaxis extension spring，Its breach corner angle block maintenance buckle just，So both maintain the connecting lever of buckle，Block again combined floodgate plate，Sleeve mechanism is maintained at "on" position，Making process terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824533.1A CN105788957A (en) | 2014-12-26 | 2014-12-26 | Low-voltage AC vacuum circuit breaker and closing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824533.1A CN105788957A (en) | 2014-12-26 | 2014-12-26 | Low-voltage AC vacuum circuit breaker and closing method thereof |
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| Publication Number | Publication Date |
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| CN105788957A true CN105788957A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410824533.1A Pending CN105788957A (en) | 2014-12-26 | 2014-12-26 | Low-voltage AC vacuum circuit breaker and closing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872923A (en) * | 2019-03-01 | 2019-06-11 | 广州三业科技有限公司 | It is a kind of manually with electromagnetism integrated high pressure A.C. contactor |
| CN110571096A (en) * | 2019-08-02 | 2019-12-13 | 浙江工贸职业技术学院 | Contactor device |
| CN112017921A (en) * | 2019-05-28 | 2020-12-01 | 雷民主 | Novel circuit breaker closing and opening operation mechanism |
-
2014
- 2014-12-26 CN CN201410824533.1A patent/CN105788957A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872923A (en) * | 2019-03-01 | 2019-06-11 | 广州三业科技有限公司 | It is a kind of manually with electromagnetism integrated high pressure A.C. contactor |
| CN109872923B (en) * | 2019-03-01 | 2024-03-08 | 广州三业科技有限公司 | Manual and electromagnetic integrated high-voltage alternating-current contactor |
| CN112017921A (en) * | 2019-05-28 | 2020-12-01 | 雷民主 | Novel circuit breaker closing and opening operation mechanism |
| CN110571096A (en) * | 2019-08-02 | 2019-12-13 | 浙江工贸职业技术学院 | Contactor device |
| CN110571096B (en) * | 2019-08-02 | 2021-08-24 | 浙江工贸职业技术学院 | Contactor device |
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Application publication date: 20160720 |
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| WD01 | Invention patent application deemed withdrawn after publication |