CN203367193U - Small electrical leakage circuit breaker - Google Patents

Small electrical leakage circuit breaker Download PDF

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Publication number
CN203367193U
CN203367193U CN 201320484072 CN201320484072U CN203367193U CN 203367193 U CN203367193 U CN 203367193U CN 201320484072 CN201320484072 CN 201320484072 CN 201320484072 U CN201320484072 U CN 201320484072U CN 203367193 U CN203367193 U CN 203367193U
Authority
CN
China
Prior art keywords
sequence current
electromagnetic system
dropout
electrical leakage
connecting rod
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 - Lifetime
Application number
CN 201320484072
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Chinese (zh)
Inventor
朱明龙
吴立珠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANG'AN GROUP Co Ltd
Original Assignee
CHANG'AN GROUP Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHANG'AN GROUP Co Ltd filed Critical CHANG'AN GROUP Co Ltd
Priority to CN 201320484072 priority Critical patent/CN203367193U/en
Application granted granted Critical
Publication of CN203367193U publication Critical patent/CN203367193U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a small electrical leakage circuit breaker which comprises a base, an upper cover, a connecting rod, a handle which is hinged with one end of the connecting rod, a support which is the hinged with the other end of the connecting rod, a moving contact which is arranged on the support, a static contact corresponding to the moving contact, a tripping mechanism, a circuit board, a null line arc extinguishing chamber, a zero sequence current transformer, and a tripping electromagnetic system. The tripping mechanism comprises a trip and a lock catch; the trip is arranged at the upper-middle part of the base; the lock catch is arranged at the upper-left part of the base and is cooperated with the trip; the middle part of the base is provided with the tripping electromagnetic system; the lower end of the tripping electromagnetic system is provided with the null line arc extinguishing chamber; the circuit board is arranged on the upper surface of the null line arc extinguishing chamber; the left side of the circuit board is provided with the zero sequence current transformer; and one end of the zero sequence current transformer is connected to a contact plate on the left side. The small electrical leakage circuit breaker has the advantages of simple structure and high breaking capacity.

Description

Minitype electrical leakage breaker
Technical field
The utility model is specifically related to Minitype electrical leakage breaker.
Background technology
At present, Minitype electrical leakage breaker is that circuit is carried out to far distance controlled disjunction or automatic signal control disjunction, circuit is played to overload, short circuit and earth leakage protective simultaneously, also can be used as the use to the not frequent operation conversion of circuit.Minitype electrical leakage breaker is comprised of shell, handle, operating mechanism, contact system, thermal overload release, magnetic release and arc-extinguish chamber.The Minitype electrical leakage breaker making current; bimetal leaf heating distortion; when current overload acquires a certain degree; the excessive deformation of bimetal leaf promotes the release action; when release passes through Short-Circuit High Current; the dropout electromagnetic system promotes the release action immediately, thereby plays the effect of protection power consumption equipment.Yet existing Minitype electrical leakage breaker is owing to there being the irrational defect of structural design, thereby this Minitype electrical leakage breaker breaking capacity is low and have a potential safety hazard.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, and a kind of simple in structure, Minitype electrical leakage breaker that breaking capacity is strong is provided.
For achieving the above object, the utility model adopts a kind of Minitype electrical leakage breaker, comprise pedestal, upper cover, connecting rod, be hinged on the handle of connecting rod one end, be hinged on the support of the connecting rod other end, be arranged on the moving contact on support, the fixed contact corresponding with moving contact, tripping mechanism, wiring board, the zero line arc control device, zero sequence current mutual inductor and dropout electromagnetic system, described tripping mechanism comprises threads off and snap close, described dropout is placed in the middle and upper part of pedestal, snap close is arranged on the upper left quarter of pedestal and matches with dropout, the middle part of pedestal is provided with the dropout electromagnetic system, the lower end of dropout electromagnetic system is provided with the zero line arc control device, be provided with terminal block on the upper surface of described zero line arc control device, the left side of this terminal block is provided with zero sequence current mutual inductor, one end of zero sequence current mutual inductor is connected on the contact plate in left side.
Especially, between described zero sequence current mutual inductor and dropout electromagnetic system by the connection that is flexible coupling.
The beneficial effects of the utility model are provided with the zero line arc control device by the lower end at pedestal, avoided the zero line arcing to cause damage to product, also improved the breaking capacity of residual current circuit breaker, and this residual current circuit breaker internal structure is rationally distributed, simple in structure, also is convenient to assembling and safeguards.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment internal structure schematic diagram.
Fig. 2 is the internal structure schematic diagram after the utility model removes terminal block.
Embodiment
As Fig. 1, shown in 2, the utility model embodiment is a kind of Minitype electrical leakage breaker, comprise pedestal 10, upper cover, connecting rod 21, be hinged on the handle 20 of connecting rod 21 1 ends, be hinged on the support 22 of connecting rod 21 other ends, be arranged on the moving contact 30 on support 22, the fixed contact 31 corresponding with moving contact 30, tripping mechanism, wiring board 26, zero line arc control device 27, zero sequence current mutual inductor 29 and dropout electromagnetic system 25, described tripping mechanism comprises dropout 23 and snap close 24, described dropout 23 is placed in the middle and upper part of pedestal 10, snap close 24 is arranged on the upper left quarter of pedestal 10 and matches with described dropout 23, and described dropout 23 all is movably housed on pedestal 10 by axle 200 with snap close 24.The middle part of pedestal 10 is provided with dropout electromagnetic system 25, the lower end of dropout electromagnetic system 25 is provided with zero line arc control device 27, be provided with terminal block 26 on the upper surface of described zero line arc control device 27, the left side of this terminal block 26 is provided with zero sequence current mutual inductor 29, and an end of zero sequence current mutual inductor 28 is connected on the contact plate 201 in left side.Between described zero sequence current mutual inductor 29 and dropout electromagnetic system 25 by 28 connections that are flexible coupling.This Minitype electrical leakage breaker is provided with the zero line arc control device by the lower end at pedestal, avoided the zero line arcing to cause damage to product, also improved the breaking capacity of residual current circuit breaker, and this residual current circuit breaker internal structure is rationally distributed, simple in structure, also is convenient to assembling and safeguards.

Claims (2)

1. a Minitype electrical leakage breaker, comprise pedestal, upper cover, connecting rod, be hinged on the handle of connecting rod one end, be hinged on the support of the connecting rod other end, be arranged on the moving contact on support, the fixed contact corresponding with moving contact, tripping mechanism, wiring board, the zero line arc control device, zero sequence current mutual inductor and dropout electromagnetic system, it is characterized in that: described tripping mechanism comprises threads off and snap close, described dropout is placed in the middle and upper part of pedestal, snap close is arranged on the upper left quarter of pedestal and matches with dropout, the middle part of pedestal is provided with the dropout electromagnetic system, the lower end of dropout electromagnetic system is provided with the zero line arc control device, be provided with terminal block on the upper surface of described zero line arc control device, the left side of this terminal block is provided with zero sequence current mutual inductor, one end of zero sequence current mutual inductor is connected on the contact plate in left side.
2. Minitype electrical leakage breaker according to claim 1 is characterized in that: between described zero sequence current mutual inductor and dropout electromagnetic system by the connection that is flexible coupling.
CN 201320484072 2013-08-06 2013-08-06 Small electrical leakage circuit breaker Expired - Lifetime CN203367193U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320484072 CN203367193U (en) 2013-08-06 2013-08-06 Small electrical leakage circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320484072 CN203367193U (en) 2013-08-06 2013-08-06 Small electrical leakage circuit breaker

Publications (1)

Publication Number Publication Date
CN203367193U true CN203367193U (en) 2013-12-25

Family

ID=49814916

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320484072 Expired - Lifetime CN203367193U (en) 2013-08-06 2013-08-06 Small electrical leakage circuit breaker

Country Status (1)

Country Link
CN (1) CN203367193U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931924A (en) * 2016-06-28 2016-09-07 北京人民电器厂有限公司 Small-size direct current breaker
CN109616384A (en) * 2018-12-03 2019-04-12 宏秀电气有限公司 The spliced miniature circuit breaker of built-in current mutual inductor and zero sequence current mutual inductor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931924A (en) * 2016-06-28 2016-09-07 北京人民电器厂有限公司 Small-size direct current breaker
CN105931924B (en) * 2016-06-28 2018-01-26 北京人民电器厂有限公司 Small-sized DC circuit breaker
CN109616384A (en) * 2018-12-03 2019-04-12 宏秀电气有限公司 The spliced miniature circuit breaker of built-in current mutual inductor and zero sequence current mutual inductor
CN109616384B (en) * 2018-12-03 2020-07-17 宏秀电气有限公司 Built-in current transformer and zero sequence current transformer's concatenation formula miniature circuit breaker

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GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20131225