CN201780948U - Arc striking mechanism of low-voltage apparatus breaker - Google Patents

Arc striking mechanism of low-voltage apparatus breaker Download PDF

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Publication number
CN201780948U
CN201780948U CN2010205259927U CN201020525992U CN201780948U CN 201780948 U CN201780948 U CN 201780948U CN 2010205259927 U CN2010205259927 U CN 2010205259927U CN 201020525992 U CN201020525992 U CN 201020525992U CN 201780948 U CN201780948 U CN 201780948U
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CN
China
Prior art keywords
arc
striking
arc striking
sheet
piece
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
CN2010205259927U
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Chinese (zh)
Inventor
赵建平
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.)
SHANGHAI DADA ELECTRIC APPLIANCE CO Ltd
Original Assignee
Individual
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Priority to CN2010205259927U priority Critical patent/CN201780948U/en
Application granted granted Critical
Publication of CN201780948U publication Critical patent/CN201780948U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an arc striking mechanism of a low-voltage apparatus breaker, which comprises a short arc striking piece and an arc angle piece, the outer side of an arc extinguishing chamber is provided with an arc striking piece, one end of the arc extinguishing chamber is provided with a static contact, the outer side of the arc striking piece is provided with the short arc striking piece, and one side of the static contact is provided with the arc angle piece. The utility model has the advantages that because the existing arc striking piece and the existing static contact are respectively provided with one short arc striking piece and one arc angle piece, thus the arc striking intensity is enhanced, and the arcing time is shortened, and the breaking protective action of a breaker can be achieved.

Description

A kind of low-voltage electrical apparatus circuit breaker striking mechanism
Technical field
The utility model relates to release unit, relates in particular to a kind of low-voltage electrical apparatus circuit breaker striking mechanism.
Background technology
The arc leading and suppressing structure of more existing miniature circuit breakers mainly is made up of moving contact, fixed contact, striking gusset and arc control device, and the electric arc that produces during disconnection extinguishes by drawing gusset introducing arc control device.But the fixed contact and the distance between the arc control device of existing homogeneous structure are bigger, and the distance of striking is long, cause electric arc to arc control device striking difficulty, striking intensity is lower, the arcing time is longer, breaking capacity is relatively poor, contact of breaker is easily by electrical arc erosion.
The utility model content
At above defective, the utility model provides a kind of Stability Analysis of Structures, can strengthen striking intensity, shortens the low-voltage electrical apparatus circuit breaker striking mechanism of arcing time, thereby can improve the high breaking capacity of circuit breaker.
For achieving the above object, the utility model is by the following technical solutions:
A kind of low-voltage electrical apparatus circuit breaker striking mechanism comprises short striking sheet and arc angle sheet, and the arc control device outside is provided with the striking sheet, and an end of arc control device is provided with fixed contact, and described striking sheet outer fix is provided with a short striking sheet, and the first side of described stationary contact is provided with the arc angle sheet.
The beneficial effect of low-voltage electrical apparatus circuit breaker striking described in the utility model mechanism is: by in existing striking sheet position and the fixed contact place increase the short striking sheet of a slice and an arc angle sheet respectively, thereby strengthen striking intensity, shorten the arcing time, help finishing circuit breaker fast to reach the high breaking protective effect.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the described low-voltage electrical apparatus circuit breaker of a utility model embodiment striking structural scheme of mechanism;
Fig. 2 is that the short striking chip architecture of the described low-voltage electrical apparatus circuit breaker of the utility model embodiment striking mechanism is provided with partial schematic diagram;
Fig. 3 is that the arc angle chip architecture of the described low-voltage electrical apparatus circuit breaker of the utility model embodiment striking mechanism is provided with partial schematic diagram.
Among the figure:
1, bottom; 2, fixed contact; 3, lack the striking sheet; 4, arc angle sheet; 5, arc control device; 6, spring; 7, connecting rod; 8, handle; 9, push rod; 10, snap close; 11, striking sheet.
Embodiment
As Figure 1-3, the described low-voltage electrical apparatus circuit breaker of the utility model embodiment striking mechanism, comprise short striking sheet 3 and arc angle sheet 4, arc control device 5 outsides are provided with bottom 1, its inboard is provided with striking sheet 11, described striking sheet 11 outer fix places are provided with a short striking sheet 3, described striking sheet 3 two ends lean on former striking sheet 11 and its middle part segmental arc forms and moulds on the shell outside being stuck in behind arc sheet central point, by three-point fix, can make more large-area electric current attract electric arc to guide to fast to reach effective arc quenching effect in the arc control device by producing more magnetic fields fast like this; One end of arc control device 5 is provided with fixed contact 2, and these fixed contact 2 positions are provided with an arc angle sheet 4.During work, under the normal operation of circuit breaker, press fixed handle 8 operating mechanisms, make power connection, tripping mechanism locking this moment, fixed contact 2 is failure to actuate, when current overload, the bimetal leaf of overload release produces deformation, and drivening rod 7 promotes snap close 10, and circuit breaker tripping is disconnected; When short circuit current when the electromagnetic system, moving iron core is inhaled, by push rod 9, promotes snap close 10, makes circuit breaker tripping, contact is finished circuit breaker disjunction protective effect under the effect of retracting spring 6 and disconnect.

Claims (1)

1. low-voltage electrical apparatus circuit breaker striking mechanism, comprise short striking sheet and arc angle sheet, the arc control device outside is provided with the striking sheet, and an end of arc control device is provided with fixed contact, it is characterized in that: described striking sheet outer fix is provided with a short striking sheet, and the first side of described stationary contact is provided with the arc angle sheet.
CN2010205259927U 2010-09-13 2010-09-13 Arc striking mechanism of low-voltage apparatus breaker Expired - Lifetime CN201780948U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205259927U CN201780948U (en) 2010-09-13 2010-09-13 Arc striking mechanism of low-voltage apparatus breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205259927U CN201780948U (en) 2010-09-13 2010-09-13 Arc striking mechanism of low-voltage apparatus breaker

Publications (1)

Publication Number Publication Date
CN201780948U true CN201780948U (en) 2011-03-30

Family

ID=43794153

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205259927U Expired - Lifetime CN201780948U (en) 2010-09-13 2010-09-13 Arc striking mechanism of low-voltage apparatus breaker

Country Status (1)

Country Link
CN (1) CN201780948U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103871796A (en) * 2014-03-19 2014-06-18 云南追梦科技有限公司 Magnetism enhancement and arc guide device of miniature circuit breaker and miniature circuit breaker provided with magnetism enhancement and arc guide device
CN105185671A (en) * 2015-10-30 2015-12-23 上海电科电器科技有限公司 Circuit breaker and baffles thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103871796A (en) * 2014-03-19 2014-06-18 云南追梦科技有限公司 Magnetism enhancement and arc guide device of miniature circuit breaker and miniature circuit breaker provided with magnetism enhancement and arc guide device
CN105185671A (en) * 2015-10-30 2015-12-23 上海电科电器科技有限公司 Circuit breaker and baffles thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhejiang Dada Electrical Co., Ltd.

Assignor: Zhao Jianping

Contract record no.: 2011330000474

Denomination of utility model: Arc striking mechanism of low-voltage apparatus breaker

Granted publication date: 20110330

License type: Exclusive License

Record date: 20110511

TR01 Transfer of patent right

Effective date of registration: 20180726

Address after: 201415 No. 171, ye Zhuang Road, Chuang Hang Town, Fengxian District, Shanghai

Patentee after: Shanghai Dada Electric Appliance Co., Ltd.

Address before: No. 128, construction east road, Yueqing, Zhejiang Province

Patentee before: Zhao Jianping

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20110330

CX01 Expiry of patent term