CN203746776U - Miniature breaker with good arc striking effect - Google Patents

Miniature breaker with good arc striking effect Download PDF

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Publication number
CN203746776U
CN203746776U CN201420114690.9U CN201420114690U CN203746776U CN 203746776 U CN203746776 U CN 203746776U CN 201420114690 U CN201420114690 U CN 201420114690U CN 203746776 U CN203746776 U CN 203746776U
Authority
CN
China
Prior art keywords
striking
arc
connecting portion
circuit breaker
miniature circuit
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
Application number
CN201420114690.9U
Other languages
Chinese (zh)
Inventor
刘光
蒋彦忠
余魁生
何献华
彭震响
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.)
YUEQING JIELI ELECTRICAL CO Ltd
Original Assignee
YUEQING JIELI ELECTRICAL 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 YUEQING JIELI ELECTRICAL CO Ltd filed Critical YUEQING JIELI ELECTRICAL CO Ltd
Priority to CN201420114690.9U priority Critical patent/CN203746776U/en
Application granted granted Critical
Publication of CN203746776U publication Critical patent/CN203746776U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a miniature breaker with a good arc striking effect. The miniature breaker mainly resolves a technical problem of a poor arc striking effect of the arc striking sheet of a conventional miniature breaker, and comprises a housing, a contact mechanism, an arc striking sheet, a bimetallic strip, and an arc-extinguishing chamber. One end of the arc striking sheet is a leading-in end connected with the arc-extinguishing chamber. The other end of the arc striking sheet is a connecting end connected with the bimetallic strip. The leading-in end is connected with the connecting end through a magnetism-enhancing portion configured in surrounding structure. The arc striking sheet of the miniature breaker employs winding structure and effectively improves a magnetic blow-out effect and arc striking efficiency so as to achieve a better arc-extinguishing effect.

Description

The miniature circuit breaker that striking is effective
Technical field
The utility model relates to a kind of low-voltage electrical apparatus, refers in particular to the effective miniature circuit breaker of a kind of striking.
Background technology
at present, miniature circuit breaker adopts the magnetic blow-out principle of arc striking piece to carry out arc extinguishing, utilize the effect in magnetic field to make arc extinction, magnetic field is produced by breaking current itself conventionally, electric arc is blown in arc quenching plate slit by magnetic field, and make it elongate, cooling, until finally extinguish, arc striking piece is that one end is connected with arc control device under normal circumstances, and the other end is connected with bimetal leaf, do not adopt around structure, therefore, the intensity in magnetic field is lower, and the effect of magnetic blow-out is poor, thereby make arc extinguishing Efficiency Decreasing, affect the serviceability of product.
summary of the invention
In order to overcome deficiency and the defect in background technology, the utility model provides the tripping mechanism of the effective miniature circuit breaker of a kind of striking, and the arc striking piece that solves existing miniature circuit breaker exists the technical problem of striking weak effect.
The technical solution of the utility model is: the miniature circuit breaker that a kind of striking is effective, comprise housing, contact mechanism, arc striking piece, bimetal leaf and arc control device, one end of described arc striking piece is the leading-in end being connected with arc control device, the other end of described arc striking piece is the link being connected with bimetal leaf, between described leading-in end and link, be connected by increasing magnetic portion, described increasing magnetic portion is around structure.
Described increasing magnetic portion comprises the first connecting portion and the second connecting portion that are fixedly connected with, and described the first connecting portion is fixedly connected with leading-in end, and described the second connecting portion is fixedly connected with link.
The downside of described the first connecting portion is provided with breach, and one end of described the second connecting portion is connected with the first connecting portion, and the other end is connected with link through breach.
Described the first connecting portion is connected with leading-in end one, and described the second connecting portion is connected with link one, and described the first connecting portion is connected by securing member with the second connecting portion.
Described increasing magnetic portion is " triangle " structure.
Described housing is provided with the striking muscle of some certain intervals of being separated by, one end of described striking muscle is the arc end corresponding with contact mechanism, the other end is the release end corresponding with arc control device, described arc end is linear structure, described release end is arcuate structure, between described some striking muscle for being uniformly distributed.
Described striking muscle and housing integrated injection molding form.
The beneficial effects of the utility model: because the arc striking piece of this miniature circuit breaker adopts the frame mode being wound around, effectively strengthen magnetic blow-out effect, improve striking efficiency, thereby make arc quenching effect better.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A place structure enlarged drawing of the utility model Fig. 2.
Fig. 3 is the structural representation of arc striking piece in the utility model.
In figure, housing 1, contact mechanism 2, arc striking piece 3, leading-in end 31, link 32, bimetal leaf 4, arc control device 5, increase magnetic portion 6, the first connecting portion 61, the second connecting portions 62, breach 7, striking muscle 8, arc end 81, discharges end 82, annular slot 9.
Embodiment
For accompanying drawing, embodiment of the present utility model is described further below:
As shown in the figure, the miniature circuit breaker that a kind of striking is effective, comprise housing 1, contact mechanism 2, arc striking piece 3, bimetal leaf 4 and arc control device 5, one end of described arc striking piece 3 is the leading-in end 31 being connected with arc control device 5, the other end of described arc striking piece 3 is the link 32 being connected with bimetal leaf 4, between described leading-in end 31 and link 32, be connected by increasing magnetic portion 6, described increasing magnetic portion 6 is around structure.By the middle part at arc striking piece, the increasing magnetic structure around structure is set, when arc extinguishing, in the time of short circuit, overload, the electric arc that disjunction moment produces, by the striking of arc striking piece 3, and improves magnetic blow-out intensity by increasing magnetic portion 6, because the arc striking piece 3 of this miniature circuit breaker adopts the frame mode being wound around, effectively strengthen magnetic blow-out effect, improve striking efficiency, thereby make arc quenching effect better.
In the utility model, as shown in the figure, described increasing magnetic portion 6 is " triangle " structure, described increasing magnetic portion 6 comprises the first connecting portion 61 and the second connecting portion 62 that are fixedly connected with, described the first connecting portion is fixedly connected with 61 leading-in ends 31, described the second connecting portion 62 is fixedly connected with link 32, the downside of described the first connecting portion 61 is provided with breach 7, one end of described the second connecting portion 62 is connected with the first connecting portion 61, the other end is connected with link 32 through breach 7, described housing is provided with annular slot 9, and described increasing magnetic portion 6 snaps in described annular slot 9.Increase magnetic portion 6 by handle and be arranged in annular slot 9, the second connecting portion 62 is walked around through breach 7 and is fixedly connected with link 32 from the below of the first connecting portion 61, and compact conformation is installed firm.
In the utility model, as shown in the figure, described the first connecting portion 61 is connected with leading-in end 32 one, described the second connecting portion 62 is connected with link 32 one, and described the first connecting portion 61 is connected by securing member with the second connecting portion 62, be convenient to processing, easy for installation.
In the utility model, as shown in the figure, described housing 1 is provided with the striking muscle 8 of some certain intervals of being separated by, one end of described striking muscle 8 is the arc end 81 corresponding with contact mechanism 2, the other end is the release end 82 corresponding with arc control device 5, described arc end 81 is linear structure, described release end 82 is arcuate structure, between described some striking muscle 8 for being uniformly distributed, described striking muscle 8 forms with housing 1 integrated injection molding, the striking muscle 8 that adopts said structure, can strengthen striking efficiency, improves arc quenching effect.
Embodiment should not be considered as the restriction to utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.

Claims (8)

1. the miniature circuit breaker that striking is effective, comprise housing (1), contact mechanism (2), arc striking piece (3), bimetal leaf (4) and arc control device (5), the leading-in end (31) of one end of described arc striking piece (3) for being connected with arc control device (5), the link (32) of the other end of described arc striking piece (3) for being connected with bimetal leaf (4), it is characterized in that: between described leading-in end (31) and link (32), be connected by increasing magnetic portion (6), described increasing magnetic portion (6) is around structure.
2. the effective miniature circuit breaker of striking according to claim 1, it is characterized in that: described increasing magnetic portion (6) comprises the first connecting portion (61) and the second connecting portion (62) that are fixedly connected with, described the first connecting portion is fixedly connected with (61) leading-in end (31), and described the second connecting portion (62) is fixedly connected with link (32).
3. the effective miniature circuit breaker of striking according to claim 2, it is characterized in that: the downside of described the first connecting portion (61) is provided with breach (7), one end of described the second connecting portion (62) is connected with the first connecting portion (61), and the other end is connected with link (32) through breach (7).
4. according to the effective miniature circuit breaker of the striking described in claim 2 or 3, it is characterized in that: described the first connecting portion (61) is connected with leading-in end (32) one, described the second connecting portion (62) is connected with link (32) one, and described the first connecting portion (61) is connected by securing member with the second connecting portion (62).
5. according to the effective miniature circuit breaker of striking described in claim 1 or 2 or 3, it is characterized in that: described increasing magnetic portion (6) is " triangle " structure.
6. according to the effective miniature circuit breaker of striking described in claim 1 or 2 or 3, it is characterized in that: described housing is provided with annular slot (9), described increasing magnetic portion (6) snaps in described annular slot (9).
7. according to the effective miniature circuit breaker of striking described in claim 1 or 2 or 3, it is characterized in that: described housing (1) is provided with the striking muscle (8) of some certain intervals of being separated by, one end of described striking muscle (8) is the arc end (81) corresponding with contact mechanism (2), the other end is the release end (82) corresponding with arc control device (5), described arc end (81) is linear structure, described release end (82) is arcuate structure, between described some striking muscle (8) for being uniformly distributed.
8. the effective miniature circuit breaker of striking according to claim 7, is characterized in that: described striking muscle (8) forms with housing (1) integrated injection molding.
CN201420114690.9U 2014-03-14 2014-03-14 Miniature breaker with good arc striking effect Expired - Fee Related CN203746776U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420114690.9U CN203746776U (en) 2014-03-14 2014-03-14 Miniature breaker with good arc striking effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420114690.9U CN203746776U (en) 2014-03-14 2014-03-14 Miniature breaker with good arc striking effect

Publications (1)

Publication Number Publication Date
CN203746776U true CN203746776U (en) 2014-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420114690.9U Expired - Fee Related CN203746776U (en) 2014-03-14 2014-03-14 Miniature breaker with good arc striking effect

Country Status (1)

Country Link
CN (1) CN203746776U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108269709A (en) * 2017-01-03 2018-07-10 浙江正泰电器股份有限公司 The arc-chutes of breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108269709A (en) * 2017-01-03 2018-07-10 浙江正泰电器股份有限公司 The arc-chutes of breaker

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140730

Termination date: 20160314

CF01 Termination of patent right due to non-payment of annual fee