CN203398047U

CN203398047U - Breaker

Info

Publication number: CN203398047U
Application number: CN201320424454.2U
Authority: CN
Inventors: 郑旭芳
Original assignee: Peck Industrial Control Electric Appliance Factory Is Liked In Yueqing City
Current assignee: Peck Industrial Control Electric Appliance Factory Is Liked In Yueqing City
Priority date: 2013-07-15
Filing date: 2013-07-15
Publication date: 2014-01-15
Anticipated expiration: 2023-07-15

Abstract

The utility model discloses a breaker, and aims to provide a breaker having a normally open mode and a normally closed mode. The breaker comprises a breaker housing, an operating mechanism, a conductor structure, an arc extinguishing device and a tripping device. The key points of the technical scheme are as following: the tripping device comprises a circuit module, an excitation coil, an elastic mechanism and a slide mechanism; the circuit module is electrically connected with the excitation coil; the slide mechanism comprises a slide rail, a pro-magnetic slide block capable of sliding along the slide rail and a contact piece which is in a linkage relationship with the slide block; the conductor structure comprises an input section and an output section which are separated by the slide block, and ends, which are relative to the slide block, of the input section and the output section are provided with contacts which are used to contact the contact piece to allow a conducting state to be achieved; and the slide block is connected with the excitation coil via the elastic mechanism. A magnetic force of the excitation coil is controlled through the circuit module to control the displacement of the slide block, and the linkage contact piece is contacts with or separated from the contacts, so the normally open mode and the normally closed mode of the breaker are achieved. The breaker can be applied to electrical equipment which needs various types of current switching devices.

Description

Circuit breaker

Technical field

The utility model relates to a kind of circuit breaker, and more particularly, it relates to a kind of circuit breaker with normally-open normally-close pattern.

Background technology

Circuit breaker refers to the electric current that can close, carry and cut-off under normal loop condition, and can close, in official hour, carry and cut-off the switching device of the electric current under abnormal loop condition (comprising short circuit condition).

Circuit breaker can be used to distribute electric energy; do not start continually asynchronous motor; power circuit and motor etc. are carried out to protection, can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for they, its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.And after disjunction fault current, generally do not need to change parts.

At present, conventional circuit breaker on market, it comprises Shell of circuit breaker, operating mechanism, conductor structure, arc-control device, trip gear, by operating mechanism, make circuit breaker internal conductor structure path, when circuit abnormality, by trip gear cutoff circuit, the electric arc of generation is by arc-control device arc extinguishing.Although this circuit breaker is simple and practical, be widely used, general only have normal on-mode only for single goal designs, and there is no normally closed pattern.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of circuit breaker with normally-open normally-close pattern.

For achieving the above object, the utility model provides following technical scheme: a kind of circuit breaker, comprise Shell of circuit breaker, operating mechanism, conductor structure, arc-control device, trip gear, described trip gear comprises circuit module, magnet exciting coil, elastic mechanism, slide mechanism, described circuit module is electrically connected to magnet exciting coil, described slide mechanism comprises slip rail, the sliding shoe of the close magnetic that can slide along slip rail, be with sliding shoe the contact chip removably connecting, described conductor structure comprises input section and the deferent segment being separated by sliding shoe, described input section relative sliding Kuai one end is provided with for contact the upper contact of conducting with contact chip, described deferent segment relative sliding Kuai one end is provided with for contact the lower contact of conducting with contact chip, described sliding shoe joins by elastic mechanism and magnet exciting coil.

By adopting technique scheme, when circuit breaker is normal on-mode, contact chip and upper contact, lower contact are normal open relation, while needing closed-loop path, operating mechanism sends signal to circuit module, and circuit module is controlled magnet exciting coil and produced magnetic force, attracts sliding shoe to move to magnet exciting coil direction, contact chip is engaged with upper contact, lower contact, and major loop is closed; When circuit breaker is normally closed pattern, contact chip and upper contact, lower contact are normally closed relation, while needing cutoff circuit, operating mechanism sends signal to circuit module, circuit module is controlled magnet exciting coil and is produced magnetic force, attract sliding shoe to move to magnet exciting coil direction, make contact chip and upper contact, lower contact separated, major loop disconnects.Make thus circuit breaker there is normally-open normally-close pattern.

The utility model is further set to: described conductor structure and contact chip have multilayer.

By above-mentioned technical scheme, the mode combinations different according to each interlayer, the permutation and combination between contact chip and upper and lower contact forms more diversified integrated mode.

The utility model is further set to: the input section of described conductor structure has two, comprise the first input section and the second input section, first described input section relative sliding Kuai one end is provided with the first upper contact, second described input section relative sliding Kuai one end is provided with the second upper contact, described contact chip has two, comprise the first contact chip and the second contact chip, the first described upper contact and the second upper contact are placed between the first contact chip and the second contact chip.

By adopting technique scheme, when circuit module is confiscated any signal, the second upper contact, lower contact engage with the second contact chip, the second input section is path with deferent segment, and when operating mechanism sends signal to circuit module, circuit module is controlled magnet exciting coil and produced magnetic force, attract sliding shoe to move to magnet exciting coil direction, make the second contact chip and the second upper contact, lower contact separated, the first contact chip is engaged with the first upper contact, lower contact, the first input section is path with deferent segment.Because the sandwich construction of conductor structure and contact chip, and contact chip is detachable, so circuit breaker is except retaining original normally-open normally-close pattern, increases again a kind of contact pattern, forms more kinds of different integrated modes.

Accompanying drawing explanation

Fig. 1 is the Shell of circuit breaker exploded view of the utility model embodiment;

Fig. 2 is the internal structure schematic diagram of the utility model embodiment;

Fig. 3 is the overall structure schematic diagram of the utility model embodiment.

Description of reference numerals: 1, Shell of circuit breaker; 2, operating mechanism; 3, conductor structure; 31, input section; 311, the first input section; 312, the second input section; 32, deferent segment; 4, arc-control device; 5, trip gear; 51, circuit module; 52, magnet exciting coil; 53, spring; 54, slide mechanism; 541, slip rail; 542, sliding shoe; 543, contact chip; 5431, the first contact chip; 5432, the second contact chip; 6, upper contact; 61, the first upper contact; 62, the second upper contact; 7, lower contact.

Embodiment

Referring to figs. 1 through Fig. 3, the utility model embodiment is described further.

A kind of circuit breaker, comprise Shell of circuit breaker 1, operating mechanism 2, conductor structure 3, arc-control device 4, trip gear 5, trip gear 5 comprises circuit module 51, magnet exciting coil 52, spring 53, slide mechanism 54, circuit module 51 is electrically connected to magnet exciting coil 52, slide mechanism 54 comprises slip rail 541, the sliding shoe 542 of the close magnetic that can slide along slip rail 541, be with sliding shoe 542 contact chip 543 removably connecting, conductor structure 3 comprises input section 31 and the deferent segment 32 being separated by sliding shoe 542, input section 31 relative sliding Kuai542 one end are provided with for contact the upper contact 6 of conducting with contact chip 543, deferent segment 32 relative sliding Kuai542 one end are provided with for contact the lower contact 7 of conducting with contact chip 543, sliding shoe 542 joins by spring 53 and magnet exciting coil 52.When circuit breaker is normal on-mode, contact chip 543 is normal open relation with upper contact 6, lower contact 7, while needing closed-loop path, operating mechanism 2 sends signal to circuit module 51, circuit module 51 is controlled magnet exciting coil 52 and is produced magnetic force, attract sliding shoe 542 to move to magnet exciting coil 52 directions, contact chip 543 is engaged with upper contact 6, lower contact 7, major loop is closed; When circuit breaker is normally closed pattern, contact chip 543 is normally closed relation with upper contact 6, lower contact 7, while needing cutoff circuit, operating mechanism 2 sends signal to circuit module 51, circuit module 51 is controlled magnet exciting coil 52 and is produced magnetic force, attract sliding shoe 542 to move to magnet exciting coil 52 directions, make contact chip 543 and upper contact 6, lower contact 7 separated, major loop disconnects.Make thus circuit breaker there is normally-open normally-close pattern.

Conductor structure 3 has two-layer with contact chip 543.By the combination between two-layer, permutation and combination between contact chip and upper and lower contact forms and one opens, two open, one close, two close, one open one and close five kinds of integrated modes.

The input section 31 of conductor structure 3 has two, comprise the first input section 311 and the second input section 312, first input section 311 relative sliding Kuai542 one end are provided with the first upper contact 61, second input section 312 relative sliding Kuai542 one end are provided with the second upper contact 62, contact chip 543 has two, comprise that the first contact chip 5431 and the second contact chip 5432, the first upper contacts 61 and the second upper contact 62 are placed between the first contact chip 5431 and the second contact chip 5432.When circuit module 51 is confiscated any signal, the second upper contact 62, lower contact 7 engage with the second contact chip 5432, the second input section 312 is path with deferent segment 32, when operating mechanism 2 sends signal to circuit module 51, circuit module 51 is controlled magnet exciting coil 52 and is produced magnetic force, attract sliding shoe 542 to move to magnet exciting coil 52 directions, make the second contact chip 5432 and the second upper contact 62, lower contact 7 separated, the first contact chip 5431 is engaged with the first upper contact 61, lower contact 7, and the first input section 311 is path with deferent segment 32.Because the double-layer structure of conductor structure 3 and contact chip 543, and contact chip 543 is detachable, so circuit breaker is except retaining original normally-open normally-close pattern, increase again a kind of contact pattern, form more kinds of different integrated modes, comprising: one open, one close, two open, two close, one open one and close ,Yi contact, ,Liang contact, ,Yi contact one and open ,Yi contact one and close nine kinds of integrated modes.

Claims

1. a circuit breaker, comprise Shell of circuit breaker, operating mechanism, conductor structure, arc-control device, trip gear, it is characterized in that: described trip gear comprises circuit module, magnet exciting coil, elastic mechanism, slide mechanism, described circuit module is electrically connected to magnet exciting coil, described slide mechanism comprises slip rail, the sliding shoe of the close magnetic that can slide along slip rail, be with sliding shoe the contact chip removably connecting, described conductor structure comprises input section and the deferent segment being separated by sliding shoe, described input section relative sliding Kuai one end is provided with for contact the upper contact of conducting with contact chip, described deferent segment relative sliding Kuai one end is provided with for contact the lower contact of conducting with contact chip, described sliding shoe joins by elastic mechanism and magnet exciting coil.

2. circuit breaker according to claim 1, is characterized in that: described conductor structure and contact chip have multilayer.

3. circuit breaker according to claim 1 and 2, it is characterized in that: the input section of described conductor structure has two, comprise the first input section and the second input section, first described input section relative sliding Kuai one end is provided with the first upper contact, second described input section relative sliding Kuai one end is provided with the second upper contact, described contact chip has two, comprises the first contact chip and the second contact chip, and the first described upper contact and the second upper contact are placed between the first contact chip and the second contact chip.