CN1304154A - Electromagnetic apparatus of circuit breaker - Google Patents
Electromagnetic apparatus of circuit breaker Download PDFInfo
- Publication number
- CN1304154A CN1304154A CN 00132941 CN00132941A CN1304154A CN 1304154 A CN1304154 A CN 1304154A CN 00132941 CN00132941 CN 00132941 CN 00132941 A CN00132941 A CN 00132941A CN 1304154 A CN1304154 A CN 1304154A
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- CN
- China
- Prior art keywords
- armature
- yoke
- side plate
- aforementioned
- tripping operation
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- 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.)
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Abstract
To provide an electromagnetic device for a circuit breaker which can identify a magnetic gap between a side panel of a core and a trip coil of a movable piece even in a state that the cover of a breaker case is come off, and has a stable breaking property. A movable piece stopper is interposed between a side panel of the core and the trip coil of the movable piece in the electromagnetic device, the movable piece stopper is formed by a portion which is projected from a base of a breaker case being made from non-magnetic material. The trip coil of the movable piece is contacted to the movable piece stopper in inclined posture, and the magnetic gap is formed between the side panel of the core and the trip coil of the movable piece opposite to the side panel.
Description
The present invention relates in the calutron of circuit breaker in order to make tripping characteristic stable and be located at magnetic gap between yoke and the armature.
In general, in the calutron of circuit breaker, between the side plate of yoke and tripping operation side, be necessary to form magnetic gap so that both are not contacted facing to the armature of this side plate.This is because if there is not this magnetic gap, then the magnetic field that causes because of the overcurrent that flows through main circuit of yoke of being made by magnetic material and armature is attracted approaching mutually, the attraction side that will become armature is by the cause of the obstacle of the original action that quiet iron attracted of oil damper upper end, for armature was attracted by the quiet iron of oil damper upper end reliably in the suitable time, magnetic gap is absolutely necessary.About this magnetic gap, the technology described in the real fair 8-2916 communique of Japan is arranged.That is to say, when the attraction side (20b) of the armature (20) of hinged yoke in the L font (19) is left the inclination attitude of the quiet iron on the oil damper (21), be contacted with the contact site (30) of the cover (1b) of Shell of circuit breaker (1), form magnetic gap (31) this moment between the tripping operation side (20a) of the side plate of yoke (19) and the armature (20) that faces toward this side plate.
Disclosed technology in the fair 8-2916 communique of above-mentioned reality, form magnetic gap (31) because make the attraction side (20b) of armature (20) be contacted with the inner contact site (30) of cover (1b), so under the state that takes off cover (1b), can't measure the magnetic gap (31) of the side plate of armature (20) and yoke (19), even contact site (30) is damaged because by the bad grade of forming of cover (1b), or the generation error is not known the variation of magnetic gap (31) yet on the size, produces the such shortcoming of deviation on the tripping characteristic so exist.Therefore must carry out the affirmation of the bad grade of shaping of contact site (30).
Because the problem of the calutron of the circuit breaker of above-mentioned prior art, the object of the present invention is to provide the magnetic gap of the tripping operation side of a kind of side plate that under the state that takes off the circuit breaker cover, also can confirm yoke and armature, the calutron of the circuit breaker of cutout stability of characteristics.Its structure is at the yoke that possesses the L font of being made up of substrate and side plate, the interior harness of being fixed in this yoke has the oil damper of the member of excitation function, be wound on the solenoid of the periphery of oil damper, and attract the side can be in the flat-hand position of the quiet iron of the upper end that is contacted with oil damper and leave to rise between the inclination attitude of quiet iron and land near the upper end of hinged side plate in yoke, the tripping operation side makes in the calutron of circuit breaker of armature of trip(ping) bar action, between the tripping operation side of the side plate of yoke and armature, clamp the armature stop that forms by nonmagnetic substance, the tripping operation side contacts of armature is in armature stop when the attraction side of armature is in inclination attitude, forms magnetic gap between the side plate of yoke and the tripping operation side facing to the armature of side plate.
Calutron according to circuit breaker of the present invention, at the yoke that possesses the L font of forming by substrate and side plate, the interior harness of being fixed in this yoke has the oil damper of the member of excitation function, be wound on the solenoid of the periphery of oil damper, and attract the side can be in the flat-hand position of the quiet iron of the upper end that is contacted with oil damper and leave to rise between the inclination attitude of quiet iron and land near the upper end of hinged side plate in yoke, the tripping operation side makes in the calutron of circuit breaker of armature of trip(ping) bar action, between the tripping operation side of the side plate of yoke and armature, clamp the armature stop that forms by nonmagnetic substance, the tripping operation side contacts of armature is in armature stop when the attraction side of armature is in inclination attitude, between the side plate of yoke and tripping operation side, form magnetic gap facing to the armature of side plate, the cutout stability of characteristics is arranged whereby, under the state of the cover that takes off Shell of circuit breaker, also can confirm the so good effect of magnetic gap of the tripping operation side of the side plate of yoke and armature.
Fig. 1 is the vertical view of expression according to the calutron of circuit breaker of the present invention.
Fig. 2 is the vertical view of expression according to the variant embodiment of the calutron of circuit breaker of the present invention.
The calutron that is configured in the inside of circuit breaker possesses the yoke of the L font of being made up of substrate and side plate, the interior harness of being fixed in this yoke has the oil damper of the member of excitation function, be wound on the solenoid of the periphery of this oil damper, and attract the side can be in the flat-hand position of the quiet iron of the upper end that is contacted with oil damper and leave to rise between the inclination attitude of quiet iron and land near the upper end of hinged side plate in yoke, the tripping operation side makes the armature of trip(ping) bar action, between the tripping operation side of the side plate of yoke and armature, clamp by nonmagnetic substance forms the armature stop of the part of pedestal extension setting.
Based on the accompanying drawing of Fig. 1 calutron according to circuit breaker of the present invention is described.
The calutron 1 that is configured in circuit breaker inside possesses the yoke 2 of the L font of being made up of substrate 2a and side plate 2b, the interior harness of being fixed in this yoke 2 has the oil damper 3 of the member of excitation function, be wound on the solenoid 4 of the periphery of this oil damper 3, and attract the side 5a can be in the flat-hand position of the quiet iron 3a of the upper end that is contacted with oil damper 3 and leave to rise between the inclination attitude of quiet iron 3a and land near the upper end of hinged side plate 2b in yoke 2, tripping operation side 5b makes the armature 5 of trip(ping) bar (not shown) action, between the tripping operation side 5b of the side plate 2b of yoke 2 and armature 5, clamp by nonmagnetic substance forms the armature stop 7 of the part of the pedestal 6 of Shell of circuit breaker extension setting.
Illustrate the plunger of still accommodating magnetic though in oil damper 3, omitted, give the helical spring of this plunger towards the end direction reinforcing of oil damper from upper opening portion, and the fluid of certain viscosity, peristome is blocked by quiet iron 3a.
The attraction side 5a that the state lower armature 5 of overcurrent does not take place in main circuit keeps inclination attitude.This moment, the tripping operation side 5b of armature 5 was contacted with armature stop 7, the tripping operation side 5b that prevents armature 5 reliably be contacted with yoke 2 side plate 2b and between the tripping operation side 5b of the side plate 2b of yoke 2 and armature 5 formation magnetic gap 8.
One overcurrent takes place in the main circuit, and electric current just flows through solenoid 4, and the quiet iron 3a of the upper end of oil damper 3 is attracted to flat-hand position one side to the attraction side 5a of armature 5.At this moment, reliably the attraction side 5a of armature 5 is attracted on the quiet iron 3a at reasonable time, the tripping operation side 5b of armature 5 makes the trip(ping) bar action and makes the main circuit tripping operation simultaneously.
Moreover, between the tripping operation side 5b of the side plate 2b of yoke 2 and armature 5, pedestal 6 extended in the present embodiment thereby armature stop 7 is set, but for example as shown in Figure 2, between the tripping operation side 15b of the side plate 12b of yoke 12 and armature 15, clamp the movable contact fulcrum plate that forms by nonmagnetic substance that supports that movable contact (not shown) uses as armature stop 17 etc., the member that is used for armature stop can suitably change in the scope that does not break away from spirit of the present invention without limits.
Claims (1)
1. the calutron of a circuit breaker, the yoke that possesses the L font of forming by substrate and side plate, the interior harness of being fixed in this yoke has the oil damper of the member of excitation function, be wound on the solenoid of the periphery of this oil damper, and attract the side can be in the flat-hand position of the quiet iron of the upper end that is contacted with aforementioned oil damper and leave to rise between the inclination attitude of quiet iron and land near the upper end of hinged side plate in aforementioned yoke, the tripping operation side makes the armature of trip(ping) bar action, it is characterized in that, between the tripping operation side of the side plate of aforementioned yoke and aforementioned armature, clamp the armature stop that forms by nonmagnetic substance, the tripping operation side contacts of aforementioned armature is in aforementioned armature stop when the attraction side of aforementioned armature is in inclination attitude, forms magnetic gap between the side plate of aforementioned yoke and the tripping operation side facing to the aforementioned armature of this side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00132941 CN1304154A (en) | 2000-01-12 | 2000-11-08 | Electromagnetic apparatus of circuit breaker |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3123/2000 | 2000-01-12 | ||
| CN 00132941 CN1304154A (en) | 2000-01-12 | 2000-11-08 | Electromagnetic apparatus of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1304154A true CN1304154A (en) | 2001-07-18 |
Family
ID=4595464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00132941 Pending CN1304154A (en) | 2000-01-12 | 2000-11-08 | Electromagnetic apparatus of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1304154A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280450A (en) * | 2014-05-29 | 2016-01-27 | 三菱电机株式会社 | Circuit breaker |
| CN107680883A (en) * | 2017-11-03 | 2018-02-09 | 浙江中亿豪科技有限公司 | A kind of fixed structure of fluid pressure type breaker coil and lubricating cup |
-
2000
- 2000-11-08 CN CN 00132941 patent/CN1304154A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280450A (en) * | 2014-05-29 | 2016-01-27 | 三菱电机株式会社 | Circuit breaker |
| CN107680883A (en) * | 2017-11-03 | 2018-02-09 | 浙江中亿豪科技有限公司 | A kind of fixed structure of fluid pressure type breaker coil and lubricating cup |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |