CN100349245C

CN100349245C - Antiexcitation actuator automatic reset device

Info

Publication number: CN100349245C
Application number: CNB031163947A
Authority: CN
Inventors: 葛诗慧; 戴志伟; 由浤
Original assignee: SHANGHAI ELECTRIC APPLIANCE SCI INST
Current assignee: SHANGHAI ELECTRIC APPLIANCE SCI INST
Priority date: 2003-04-14
Filing date: 2003-04-14
Publication date: 2007-11-14
Anticipated expiration: 2023-04-14
Also published as: CN1538481A

Abstract

The present invention relates to an automatic reset device for a flyback actuator, which comprises a flyback actuator and an automatic reset device, wherein the flyback actuator is composed of an armature, a permanent magnet, a magnetic yoke, coils and a spring and the automatic reset device comprises a square shaft supporting frame, a release supporting frame, a release shaft, a lock catch of a circuit breaker, a lever and a sliding bar. The flyback actuator 1 of an electronic release is moved and placed in an electromagnetic circuit breaker and is fixed by a supporting frame to prevent movement; the flyback actuator drives the electromagnetic release shaft by using the sliding bar; the flyback actuator can be automatically reset through the lever by using rotation stroke and acting force generated by the square shaft supporting frame of the circuit breaker from a closed position to an open position. Since the present invention solves the problem of automatic resetting of flyback actuators, a plastic shell circuit breaker with electronic protection and electromagnetic protection for generator protection in naval vessels is successfully developed and meets the requirements of small-sized naval vessel matching.

Description

Opposite Excited Actuator Automatic Reset Device

Technical field

The present invention relates to a kind of Opposite Excited Actuator Automatic Reset Device, relate to the automatic reset device of the anti-excitatory actuator of a kind of breaker of plastic casing or rather.

Background technology

Anti-excitatory actuator is the final controlling element that warship is threaded off and moved with breaker of plastic casing, also claims low-yield helix tube type shunt release.Its operation principle sees Fig. 1 for details.

Under the normal condition, electronic trip unit is output not, and the suction that the magnetic flux flow that the permanent magnet 5 of anti-excitatory actuator 1 produces generates through yoke 2 and armature 3 just in time overcomes the power that compression spring 4 produces, and makes armature 3 be in the locked position of attracting state.When overload or short circuit, electronic trip unit has output, make the coil 6 of anti-excitatory actuator 1 that electric current be arranged, produce the magnetic flux that offsets with permanent magnet 5, make armature 3 release movement under spring 4 power effects, by the part on the axle 78 axle 7 is rotated counterclockwise, part 9 drives snap closes 10 on the axle 7 at this moment, makes it to trip, and causes that lever 11 rotates, tripping 12 trippings, thus circuit breaker disconnected.Handle 13 operations when detaining again by this circuit breaker realize that the anti-excitatory actuator after the action returns again.When detaining again, circuit breaker handle 13 is moved to the left, part 14 on the drive axle 7 clockwise rotates axle 7, and the armature 3 of the anti-excitatory actuator 1 of 8 drives of the part on the axle 7 at this moment moves to pinning direction, just in time overcomes the locked position of compression spring 4 power up to permanent magnet 5 the suction-combining forces.

But the described device of above-mentioned Fig. 1 is used in warship and uses in the breaker of plastic casing with generator protection; because of this circuit breaker is the moving combining structure that adds the electron type release of electromagnetism wink; anti-excitatory actuator 1 is not to drive the electron type tripping mechanism; but drive moving trip shaft 4 of electromagnetic type wink by sliding bar among Fig. 27; (seeing Fig. 2 for details) resets anti-excitatory actuator action owing to snap close, tripping structure difference so can't utilize breaker of plastic casing handle 6 to buckle operation again.

Summary of the invention

It is moving to the purpose of this invention is to provide a kind of existing electromagnetism wink, and the Opposite Excited Actuator Automatic Reset Device of charged sub-release again is with the specification requirement of the breaker of plastic casing that satisfies naval vessel generator protection requirement.

Install electronic trip unit additional on the naval vessel electromagnetic type breaker of plastic casing, automatically reset, solve how to drive the two big difficult points that after electromagnetic trip axle and the overload action it resetted for solving anti-excitatory actuator.

Solution of the present invention is to have designed at above-mentioned difficult point to drive the electromagnetic trip axle, and can automatically reset structure.This structure moves to anti-excitatory actuator 1 in the electromagnetic breaker, fixing by support 23, utilize sliding bar 20 to realize driving to electromagnetic trip axle 18, utilize circuit breaker square shaft 21 by rotational travel and the active force of make position, anti-excitatory actuator 1 is automatically reset by lever 15 to open position.

Effect of the present invention: owing to solved automatically reseting of anti-excitatory actuator, just succeeded in developing warship, satisfied the supporting need of Small Vessel with the generator protection breaker of plastic casing.

Description of drawings

Fig. 1 is a kind of warship anti-excitatory actuator structure schematic diagram of electron type breaker of plastic casing;

Fig. 2 is an Opposite Excited Actuator Automatic Reset Device structural representation of the present invention.

Embodiment

The invention will be further described below in conjunction with accompanying drawing and a preferred embodiment.

Fig. 1 is the structure of a kind of anti-excitatory actuator in the prior art, owing to there is not resetting means, it can not make anti-excitatory actuator automatically reset.

With reference to Fig. 2, Opposite Excited Actuator Automatic Reset Device, comprise the anti-excitatory actuator of forming by armature 3, permanent magnet 5, yoke 2, coil 6, spring 41, it is characterized in that automatic reset device of its configuration, this device comprises: the lever 15 that is positioned at anti-excitatory actuator left side, have a fixed lever 16 affixed with support 17 in the middle of lever 15, the upper end of lever 15 is relative with armature 3;

The top of described support 17 has sliding bar 20 is installed in the aperture, and its right-hand member is aimed at armature 3;

There is a snap close 19 at the middle part of described support 17, and crossbar 22 interlocks on snap close 19 and the electromagnetic trip axle 18;

15 one-tenth L types of described lever contact with square shaft support 21; Lever 15 separates with square shaft support 21 during make position, contacts during open position.

One crossbar 22 is arranged on the described electromagnetic trip axle 18, and the one end contacts with snap close 19.

Parts recited above have:

1 is anti-excitatory actuator---the actuator of electronic trip unit;

21 is circuit breaker square shaft support, and moving contact of breaker is installed;

17 are moving release bracket of electromagnetism wink, installing mechanism part, dropout part and accessory;

18 for moving trip shaft of electromagnetism wink, works the disconnection effect of triping;

The part that 19 is the circuit breaker snap close cooperates with crossbar 22 on the trip shaft 18;

15 for lever plays the power transmission effect, and square shaft is rotated with anti-excitatory actuator becomes relevant parts;

20 pass to moving trip shaft 18 of electromagnetism wink for sliding bar can make the armature release force of anti-excitatory actuator.

Its operation principle is as follows:

Under normal circumstances, electronic trip unit is output not, the suction that the magnetic flux flow that the permanent magnet of anti-excitatory actuator 1 produces produces through yoke and armature just in time overcomes the power that the compression spring produces, make armature be in the locked position of attracting state, the feasible operations such as button, closure, disconnection more normally of circuit breaker this moment.Closed circuit breaker, when overload, in case electronic trip unit has output, the coil of anti-excitatory actuator 1 has electric current, produce the magnetic flux that offsets with permanent magnet, make armature release movement under the effect of spring force, drive moving trip shaft 18 of electromagnetic type wink by sliding bar 20, circuit breaker is disconnected, this moment, square shaft support 21 moved the A distance by make position to open position, had driven lever 15 lower ends and had been moved to the left, and the upper end of lever 15 moves right, because lever 15 upper ends head on the armature of anti-excitatory actuator 1, are returned to the snap close position thereby order about armature.

Claims

1, Opposite Excited Actuator Automatic Reset Device, comprise the anti-excitatory actuator of forming by armature (3), permanent magnet (5), yoke (2), coil (6), spring (4) (1), it is characterized in that automatic reset device of described anti-excitatory actuator configuration, this device comprises: lever (15) centre that is positioned at anti-excitatory actuator left side has a fixed lever (16) and support (17) affixed, and the upper end of lever (15) is relative with armature (3);

The top of described support (17) has sliding bar (20) is installed in the aperture, and this sliding bar (20) right-hand member is aimed at armature (3);

There is a snap close (19) at the middle part of described support (17), and snap close (19) interlocks with electromagnetic trip axle (18).

2, automatic reset device as claimed in claim 1 is characterized in that:

Described lever (15) becomes the L type, is associated with square shaft support (21); Lever during make position (15) separates with square shaft support (21), contacts during open position.

3, automatic reset device as claimed in claim 1 is characterized in that:

One crossbar (22) is arranged on the described electromagnetic trip axle (18), and the one end contacts with snap close (19).