CN201514908U - Electromagnetic tripping device of low-voltage circuit breaker - Google Patents
Electromagnetic tripping device of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201514908U CN201514908U CN200920048505XU CN200920048505U CN201514908U CN 201514908 U CN201514908 U CN 201514908U CN 200920048505X U CN200920048505X U CN 200920048505XU CN 200920048505 U CN200920048505 U CN 200920048505U CN 201514908 U CN201514908 U CN 201514908U
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- armature
- support
- circuit breaker
- voltage circuit
- groove
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Abstract
The utility model discloses an electromagnetic tripping device of a low-voltage circuit breaker, which comprises a bimetallic strip, a magnetic yoke and a current carrying part which are respectively fixed on a bracket, wherein the magnetic yoke has a U-shaped structure, is positioned at the upper part of the bracket and envelopes part of the bimetallic strip and the current carrying part; an armature is arranged in front of the opening of the U-shaped structure of the magnetic yoke; two legs extending out from the lower part of the armature are connected with the bracket in a pivoting way; the bracket is provided with a slot on the longitudinal front wall; the leg of the armature is provided with at least one groove in an extending way; and one end of a spring is fixed at the slot, and the other end thereof is fixed at the groove. The electromagnetic tripping device is integrally exquisite, saves the inner space of the low-voltage circuit breaker, and has easy processing and simple assembly of all parts.
Description
Technical field
The utility model relates to a kind of low-voltage circuit breaker, relates in particular to its electromagnetic tripping apparatus, is the tripping operation execution unit of low-voltage circuit breaker.
Background technology
Low-voltage circuit breaker is a kind of protection electrical equipment of main circuit, when detecting the overcurrent of main circuit system, makes its trip unit produce the action of threading off, and plays effects such as Circuits System in the protection main circuit and each parts are not impaired.Trip unit comprises the magnetic tripping mechanism, and the magnetic tripping mechanism is made up of armature, yoke, spring, support, current-carrying part etc., and existing armature is offered through hole usually with the both sides bending symmetrically at two bending parts, and the top is provided with upwardly extending actuator lever.Add man-hour, support bilateral symmetry at the metal material of processing and forming is offered through hole, the support both sides are simultaneously with armature two bending envelopes, and the through hole in armature two bendings is all corresponding with through hole on the support both sides, join armature is compatible with support thereby be convenient to through hole that through hole that bolster offers by the support both sides respectively and armature bending offer, make armature to be bearing on the support rotatably around bolster.In the electromagnetic tripping apparatus of this structure, the armature both sides need bending, also need offer through hole, are not easy to the processes of armature, and support needs the through hole of folding surface both sides correspondingly with the through hole of armature two bending parts to pass to hold bolster, make assembling loaded down with trivial details, time-consuming.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, part processing convenient and armature and support between the two can be quick, the electromagnetic tripping apparatus of the low-voltage circuit breaker of easy reliable assembling.
The technical solution adopted in the utility model is, comprises that bimetal leaf, yoke and current-carrying part are separately fixed on the support, and yoke is a U type structure, is positioned at the top of support, and the part of envelope bimetal leaf and current-carrying part; Before the U of yoke type structural openings, an armature is set, two pin that extend armature bottom connection support that can pivot; Support is having a groove on the antetheca longitudinally, extends at least one groove is set on the pin of armature, and spring one end is fixed on the groove position, and the other end is fixed on the groove location place.
The utility model is whole exquisite, has saved the space in low-voltage circuit breaker; Each part is easily processed and is assembled simple.
Description of drawings
Fig. 1 is a stereogram of the present utility model.
Fig. 2 is the structure chart of Fig. 1 medium-height trestle 11.
Fig. 3 is the structure chart of armature 14 among Fig. 1.
Among the figure: 11. supports; 12. current-carrying part; 13. spring; 14. armature; 15. yoke; 16. bimetal leaf; 17. adjustment screw; 18. air gap; 111,112. holes; 113. projection; 114 grooves; 115 holes; 141,142 pin; 143 grooves.
Embodiment
As Fig. 1-3, bimetal leaf 16, yoke 15 and 12 3 parts of current-carrying part are separately fixed on the support 11, and yoke 15 is U type structure and the top that is positioned at support 11, the part of yoke 15 envelope bimetal leafs 16 and current-carrying part 12.Before the U of yoke 15 type structural openings, an armature 14 is set, form the air gap 18 between armature 14 and the yoke 15.Armature 14 bottoms are extended with two pin 141,142, pin 141,142 respectively with support 11 on two holes having of lateral symmetry 111,112 cooperate, promptly armature 14 is bearing on the support 11 with the axle at pin 141,142 places, and armature 14 can freely be pivoted.
Support 11 horizontal sidewalls are provided with a projection 113 that adjustment screw 17 can be installed, and support 11 has the hole 115 of yoke of being used for fixing 15 on its rear wall, and support 11 is having a groove 114 on the antetheca longitudinally.On the pin 141 of armature 14, extend at least one groove 143 is set, spring 13 1 ends fixedly hang on the groove 143, the other end is fixed on groove 114 places of support 11, also can be fixed on other relative position place, as on other position of support 11 or the current-carrying part 12 or the like.Adjustment screw 17 is in the maximal clearance that can limit under the effect of spring 13 between armature 14 and the yoke 15.When spring 13 hangs over different grooves 143, can produce different spring tensions, have only when electromagnetic attraction could adhesive armature 14 during greater than spring tension, armature 14 is rotated to the yoke direction, armature 14 can hit actuator near the one side of yoke 15 in the rotation process, operating mechanism is threaded off, realize the tripping operation of circuit breaker, the size of electromagnetic attraction is decided by to flow through the size of current of this electromagnetic tripping apparatus, so, corresponding different drop-away current when spring 13 connects with different groove 143, the electromagnetic attraction of generation makes the operating mechanism dropout, therefore, different grooves 143 connects and can realize that the circuit breaker tripping current value is adjustable on spring 13 and the armature 14.
Claims (2)
1. the electromagnetic tripping apparatus of a low-voltage circuit breaker, comprise that bimetal leaf (16), yoke (15) and current-carrying part (12) are separately fixed on the support (11), it is characterized in that: yoke (15) is a U type structure, be positioned at the top of support (11), and the part of envelope bimetal leaf (16) and current-carrying part (12); Before the U type structural openings of yoke (15) armature (14) is set, two pin (141,142) that extend armature (14) bottom can pivot and connect support (11); Support (11) is having a groove (114) on the antetheca longitudinally, goes up to extend at the pin (141) of armature (14) at least one groove (143) is set, and spring (13) one ends are fixed on groove (114) position, and the other end is fixed on groove (143) position.
2. the electromagnetic tripping apparatus of a kind of low-voltage circuit breaker according to claim 1, it is characterized in that: the horizontal sidewall of support (11) is provided with the projection (113) that adjustment screw (17) can be installed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200920048505XU CN201514908U (en) | 2009-10-23 | 2009-10-23 | Electromagnetic tripping device of low-voltage circuit breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200920048505XU CN201514908U (en) | 2009-10-23 | 2009-10-23 | Electromagnetic tripping device of low-voltage circuit breaker |
Publications (1)
Publication Number | Publication Date |
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CN201514908U true CN201514908U (en) | 2010-06-23 |
Family
ID=42486319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN200920048505XU Expired - Lifetime CN201514908U (en) | 2009-10-23 | 2009-10-23 | Electromagnetic tripping device of low-voltage circuit breaker |
Country Status (1)
Country | Link |
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CN (1) | CN201514908U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102915890A (en) * | 2012-10-25 | 2013-02-06 | 温州市新蓝天电器有限公司 | Crow plate trip circuit breaker |
CN103247490A (en) * | 2012-02-13 | 2013-08-14 | 西门子公司 | Hinged armature bearing for magnetic tripping device |
CN103441046A (en) * | 2013-08-13 | 2013-12-11 | 常熟开关制造有限公司(原常熟开关厂) | Magnetic releaser of breaker |
CN107833813A (en) * | 2017-12-11 | 2018-03-23 | 宏秀电气有限公司 | A kind of Anti-surging breaker |
-
2009
- 2009-10-23 CN CN200920048505XU patent/CN201514908U/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103247490A (en) * | 2012-02-13 | 2013-08-14 | 西门子公司 | Hinged armature bearing for magnetic tripping device |
CN103247490B (en) * | 2012-02-13 | 2016-12-28 | 西门子公司 | Rotating iron supporting device for magnetic release |
CN102915890A (en) * | 2012-10-25 | 2013-02-06 | 温州市新蓝天电器有限公司 | Crow plate trip circuit breaker |
CN102915890B (en) * | 2012-10-25 | 2015-04-22 | 温州市新蓝天电器有限公司 | Crow plate trip circuit breaker |
CN103441046A (en) * | 2013-08-13 | 2013-12-11 | 常熟开关制造有限公司(原常熟开关厂) | Magnetic releaser of breaker |
CN107833813A (en) * | 2017-12-11 | 2018-03-23 | 宏秀电气有限公司 | A kind of Anti-surging breaker |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20100623 Effective date of abandoning: 20091023 |