CN2521747Y - Cut-off mechanism for breaker - Google Patents
Cut-off mechanism for breaker Download PDFInfo
- Publication number
- CN2521747Y CN2521747Y CN 01253238 CN01253238U CN2521747Y CN 2521747 Y CN2521747 Y CN 2521747Y CN 01253238 CN01253238 CN 01253238 CN 01253238 U CN01253238 U CN 01253238U CN 2521747 Y CN2521747 Y CN 2521747Y
- Authority
- CN
- China
- Prior art keywords
- coil
- push rod
- under voltage
- armature
- release mechanism
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an opening mechanism of a breaker and consists of a shell, an electronic module, an iron core, a gag bit, a coil, and a returning spring. The utility model is characterized in that a shunt trip coil and an under-voltage trip coil are arranged in the same shell and share a same push rod to move a trip semi-axis of the breaker; moreover, the opening mechanism is provided with the function of delayed breaker opening; thus the mechanism is simple in the structure, small in the dimension, convenient for observation and maintenance, and low in the cost.
Description
(1). technical field.The utility model relates to a kind of release mechanism of low-voltage circuit breaker, belongs to breaker technical field.
(2). background technology.
Omnipotent breaker in the low-voltage circuit breaker is as main switchgear or branch switch device; except that the short-circuit protection of mainly bearing distribution line and equipment; also bear the under voltage protection of circuit and equipment; when main circuit voltage falls because of certain fault; can cause main circuit equipment to damage; so under-voltage release should move circuit breaker is disconnected when voltage is reduced to setting; when also requiring under voltage, the certain user can not cut off the power supply at once; need provide the function of under-voltage time-delay cut-off breaker, so under-voltage delayed release has instantaneous and branch deferred action.In addition, circuit breaker also should be with shunt release to realize remote artificial opening operation.Device for under-voltage releasing equipment and the shunt release that uses both at home and abroad all is separate component at present, be independently release mechanism of each self-forming, respectively carry push rod, independently magnetic system is respectively arranged, so occupy sizable space separately, be unfavorable for the miniaturization of circuit breaker and the development of series of products.
(3). summary of the invention.The purpose of this utility model provides a kind of simple, volume significantly dwindles, shunt opening and under-voltage function are provided by a community circuit breaker release mechanism.
To achieve these goals, the utility model provides a kind of release mechanism of circuit breaker, and, coil fast by housing, electronics mould, iron core, the armature of band push rod, back-moving spring, pressing plate, support are formed.This disconnects on the cover plate that a mechanism rack is installed in circuit breaker operation mechanism, catch bar can pass cover plate as circuit breaker is disconnected, and its characteristics are that described push rod is the shared unique push rod of shunt release and under-voltage release.
Above-mentioned release mechanism is characterized in that cylindrical housing and iron core wherein, armature, coil form solenidal electromagnet, and having electronic module, to make working method be Alternating Current Power Supply, DC operation.
Above-mentioned release mechanism, it is characterized in that the coil in the housing is that two opposite coils of independently coiling direction are formed, one of them is the under voltage coil, be connected to main circuit, one is the shunt opening coil, be connected to control loop, whole release mechanism has the function of under-voltage release and shunt release.
Above-mentioned release mechanism, the back-moving spring that it is characterized in that spiral is enclosed within on the armature and by ring washer to be fixed, and near the ring washer place pressing plate of one back-moving spring is arranged, and this pressing plate can rotate.
Above-mentioned release mechanism, it is characterized in that respectively having on the biside plate of mounting bracket one as A to the L of view type groove, straight trough play the guiding role to push rod, but the translot crush board block in the corner after rotating about 5 °, be convenient to install ring washer.
Above-mentioned release mechanism is characterized in that hull outside also can add the very big electronic module of another volume, and this module has been broken away from traditional capacitance-resistance time-delay mode and realized under-voltage time-delay cut-off breaker.
Circuit breaker place circuit voltage, normal under voltage coil is switched on routinely, the armature of band push rod is held by iron core, push rod is away from the semiaxis of circuit breaker operation mechanism, when the voltage landing appears in main circuit, armature keeps incessantly discharging, and under the effect of back-moving spring, push rod is moved semiaxis fast disconnects circuit breaker.In addition, produce anti-magnetic flux when shunt opening trip coil is switched on, equally also make armature discharge push rod and move semiaxis equally, circuit breaker disconnects.Because under voltage tripping coil and shunt opening trip coil place in the same housing and a shared push rod, so the volume of release mechanism (especially width) descends significantly, help the circuit breaker miniaturization.Because the release mechanism working method is an Alternating Current Power Supply, DC operation, so it is stable to have DC electromagnet, noiselessness, the advantage that overload characteristic is good has alternating electromagnet tractive effort big again, the strong point that stroke is long.
(4). description of drawings.Fig. 1 is the release mechanism structural representation of a kind of circuit breaker of the present utility model.
Among Fig. 1,1 is housing, and 2 is electronic module, and 3 is iron core, 4 armature for the band push rod, 5 is the shunt opening coil, and 6 is the under voltage coil, and 7 is back-moving spring, and 8 is support, and 9 is pressing plate, 10 is ring washer, and 11 is cover plate, and 12 is the release semiaxis, and 13 is operating mechanism, and 14 is push rod.
(5). embodiment.In Fig. 1, the release mechanism of omnipotent breaker provided by the utility model, mainly by the armature 4 of housing 1, electronic module 2, unshakable in one's determination 3, band push rod, shunt opening coil 5,
Under voltage coil 6, back-moving spring 7, support 8, pressing plate 9, back-up ring 10 are formed, housing is armature, shunt opening coil, the under voltage coil that electronic module, iron core, band push rod are installed in the cavity successively, and the periphery of the armature of band push rod is described shunt opening coil and under voltage coil.Support 8 is installed on the cover plate 11 of operating mechanism 13, and the below of band push rod armature 4 is dropout semiaxis 12 of mechanism 13.Receive when circuit breaker and to disconnect indication, 5 energisings of shunt opening coil, or the armature 4 of band push rod is discharged when under voltage occurring, and move dropout semiaxis 12, realize that circuit breaker disconnects.
Because adopt such scheme that the shunt opening that opens circuit, under voltage release mechanism are integrated, simple in structure, compact, its shunted exciter tripping of evidence and under voltage dropout operating characteristics meet the GB standard fully, the inherent opening time of circuit breaker significantly shortens.
Claims (5)
1. the release mechanism of a circuit breaker, armature [4], back-moving spring [7], pressing plate [9], support [8] by housing [1], electronic module [2], shunt opening coil [5], under voltage coil [6], [3] unshakable in one's determination, band push rod are formed, housing is armature, shunt opening coil, the under voltage coil that electronic module, iron core, band push rod are installed in the cavity successively, armature periphery at the band push rod is shunt opening coil and under voltage coil, it is characterized in that shunt opening coil [5] and under voltage coil [6] in same housing, and a shared push rod [14].
2. release mechanism according to claim 1 is characterized in that described housing [1] is a metal cylinder, and shunt opening coil [5], under voltage coil [6], [3] unshakable in one's determination, armature [4] are formed solenoid structure.
3. release mechanism according to claim 1 and 2, it is characterized in that the interior shunt opening coil of described housing [1] [5], under voltage coil [6] be made up of two coils that independently direction of winding is opposite, wherein under voltage coil [6] is connected to main circuit, and another shunt opening coil is connected to control circuit.
4. release mechanism according to claim 1 is characterized in that described back-moving spring is a helical compression spring, and the pressing plate of described back-moving spring is fixed with ring washer, and can rotate around armature.
5. release mechanism according to claim 1 is characterized in that respectively there is L type groove described support [8] both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253238 CN2521747Y (en) | 2001-08-22 | 2001-08-22 | Cut-off mechanism for breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253238 CN2521747Y (en) | 2001-08-22 | 2001-08-22 | Cut-off mechanism for breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521747Y true CN2521747Y (en) | 2002-11-20 |
Family
ID=33662775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01253238 Expired - Fee Related CN2521747Y (en) | 2001-08-22 | 2001-08-22 | Cut-off mechanism for breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521747Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137389A (en) * | 2011-11-22 | 2013-06-05 | 上海电科电器科技有限公司 | Energy storage tripping mechanism of under-voltage tripper |
| CN106571275A (en) * | 2016-11-10 | 2017-04-19 | 北京双杰电气股份有限公司 | Undervoltage tripping mechanism |
-
2001
- 2001-08-22 CN CN 01253238 patent/CN2521747Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137389A (en) * | 2011-11-22 | 2013-06-05 | 上海电科电器科技有限公司 | Energy storage tripping mechanism of under-voltage tripper |
| CN106571275A (en) * | 2016-11-10 | 2017-04-19 | 北京双杰电气股份有限公司 | Undervoltage tripping mechanism |
| CN106571275B (en) * | 2016-11-10 | 2019-12-24 | 北京双杰电气股份有限公司 | Under-voltage tripping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |