CN105118749A

CN105118749A - Mechanical breaker mechanism

Info

Publication number: CN105118749A
Application number: CN201510412265.7A
Authority: CN
Inventors: 郑之松
Original assignee: HEFEI ZHENGHAO MACHINERY TECHNOLOGY CO LTD
Current assignee: HEFEI ZHENGHAO MACHINERY TECHNOLOGY CO LTD
Priority date: 2015-07-11
Filing date: 2015-07-11
Publication date: 2015-12-02

Abstract

A mechanical breaker mechanism disclosed by the present invention comprises a shell, a fixed contact, a bimetal element, a sliding sleeve and a coil. An iron core is inserted in the coil, a driven rod penetrates the sliding sleeve from top to bottom and is in slip cooperation with the sliding sleeve, and a moving contact is arranged in the shell rotatably. A rotating shaft of the moving contact is equipped with a first torsional spring, the upper part of the shell is equipped with a handle rotatably, and the two sides of the bottom of the handle are connected with a driving rod and a boss respectively and fixedly. The driving rod is in hinge joint with the upper end of the driven rod, a lever is arranged in the shell rotatably, and a rotating shaft of the lever is equipped with a second torsional spring. The upper end of the lever extends to the outer side of the boss, the front end of the iron core extends to one side of the lower end of the lever, the front end of the bimetal element extends to the other side of the lower end of the lever, and the moving contact, the coil and the bimetal element are connected in series via conducting wires. The mechanical breaker mechanism of the present invention is simple in structure and reliable in performance, can close and disconnect rapidly, can depend on the mechanical energy storage to close the contact rapidly when the contact is almost closed, and enables the dependent manual operation to become the independent manual operation.

Description

Mechanical type breaker mechanism

Technical field

The present invention relates to miniature circuit breaker field, specifically a kind of mechanical type breaker mechanism.

Background technology

In prior art, in miniature circuit breaker, mostly there is no fast closing mechanism; Even if having in the miniature circuit breaker of fast closing mechanism on a small quantity, also there is the problem such as complex structure, assembling difficulty in fast closing mechanism used, structure particularly due to this miniature circuit breaker with fast closing mechanism is quite complicated, poor seismic behavior, easy slide fastener, has influence on the normal use of this miniature circuit breaker on the contrary.

Summary of the invention

The object of this invention is to provide a kind of dependable performance, the simple mechanical type breaker mechanism of structure, mechanical energy storage quick-make contact can be relied on when contact is soon closed, make the operation about manpower become the operation of irrelevant manpower.

Technical scheme of the present invention is as follows:

A kind of mechanical type breaker mechanism, include housing, it is characterized in that: the both sides in described housing are installed with fixed contact and two gold dollar part respectively, fixed contact described in housing inherence and be installed with sliding sleeve and coil between two gold dollar part, iron core is fitted with in described coil, follower lever is had to pass described sliding sleeve from top to bottom and be slidably matched with it, the rotated down of the inherent described follower lever of described housing is provided with the moving contact matched with described fixed contact, the rotating shaft of described moving contact is provided with the first torsion spring; The top of described housing is rotatablely equipped with handle, both sides bottom described handle are fixedly connected with driving lever and boss respectively, the upper end of described driving lever and described follower lever is hinged, the rotated down of the inherent described boss of described housing is provided with lever, the rotating shaft of described lever is provided with the second torsion spring, the upper end of lever extends to the outside of described boss, the front end of described iron core extends to the side of described lever lower end, and the front end of described pair of gold dollar part extends to the opposite side of described lever lower end; Described moving contact, coil and two gold dollar part are in series by wire.

Described mechanical type breaker mechanism, is characterized in that: the rear end of described fixed contact and two gold dollar part is connected to the wire of drawing in described housing.

Described mechanical type breaker mechanism, is characterized in that: described boss and handle can be pinned when described handle rotates and drives boss to move upward in the upper end of described lever.

Beneficial effect of the present invention:

Structure of the present invention is simple, dependable performance, and production technology, matching requirements are low, are easy to realize, be easy to assembling, cost is low, easy to manufacture, energy quick-make disjunction, can rely on mechanical energy storage quick-make contact when contact is soon closed, make the operation about manpower become the operation of irrelevant manpower.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Embodiment

See Fig. 1, a kind of mechanical type breaker mechanism, include housing 6, both sides in housing 6 are installed with fixed contact 5 and two gold dollar part 14 respectively, be installed with sliding sleeve 15 and coil 2 between the inherent fixed contact of housing 65 and two gold dollar part 14, in coil 2, be fitted with iron core 1, have follower lever 7 pass sliding sleeve 15 from top to bottom and be slidably matched with it, the rotated down of the inherent follower lever 7 of housing 6 is provided with the moving contact 4 matched with fixed contact 5, the rotating shaft of moving contact 4 is provided with the first torsion spring 3; The top of housing 6 is rotatablely equipped with handle 9, both sides bottom handle 9 are fixedly connected with driving lever 8 and boss 10 respectively, driving lever 8 is hinged with the upper end of follower lever 7, the rotated down of the inherent boss 10 of housing 6 is provided with lever 11, the rotating shaft 13 of lever 11 is provided with the second torsion spring 12, the upper end of lever 11 extends to the outside of boss 10, and the front end of iron core 1 extends to the side of lever 11 lower end, and the front end of two gold dollar part 14 extends to the opposite side of lever 11 lower end; Moving contact 5, coil 2 and two gold dollar part 14 are in series by wire.

In the present invention, the rear end of fixed contact 5 and two gold dollar part 14 is connected to the wire of drawing in housing 6, forms loop with moving contact 5, coil 2 and two gold dollar part 14, power supply and load; Boss 10 and handle 9 can be pinned when handle 9 rotates and drives boss 10 to move upward in the upper end of lever 11.

Below in conjunction with accompanying drawing, the present invention is further illustrated:

When handle 9 rotates counterclockwise, driving lever 8 is driven to move downward, thus drive follower lever 7 to move downward along sliding sleeve 15, make moving contact 4 and fixed contact 5 quick-make, whole circuit closed, simultaneously, when handle 10 rotates counterclockwise, drive boss 10 to move upward, lever 11 withstands boss 10 under the effect of the second torsion spring 12, quick lock in handle 9 convex platform 10.

After above-mentioned contact closure, when there is overcurrent in whole loop, big current is connected with in coil 2, coil 2 just produces a kind of strong magnetic force, makes iron core 1 inhale dynamic lever 11, thus drives the lower end of lever 11 towards iron core 1 one lateral movement, the upper end of lever 11 disconnects handle rapidly 9 convex platforms 10, move upward under the reaction force of first torsion spring 3 of follower lever 7 in moving contact 4 rotating shaft, moving contact 4 is separated with fixed contact 5, whole loop disconnects.

When there is overload in whole loop, two gold dollar part 14 generates heat and produces bending, the lower end that bending two gold dollar parts 14 promote lever 11 offsets, the lower end of lever 11 disconnects handle rapidly 9 convex platforms 10, move upward under the reaction force of first torsion spring 3 of follower lever 7 in moving contact 4 rotating shaft, moving contact 4 separates with fixed contact 5, and whole loop disconnects.

Claims

1. a mechanical type breaker mechanism, include housing, it is characterized in that: the both sides in described housing are installed with fixed contact and two gold dollar part respectively, fixed contact described in housing inherence and be installed with sliding sleeve and coil between two gold dollar part, iron core is fitted with in described coil, follower lever is had to pass described sliding sleeve from top to bottom and be slidably matched with it, the rotated down of the inherent described follower lever of described housing is provided with the moving contact matched with described fixed contact, the rotating shaft of described moving contact is provided with the first torsion spring; The top of described housing is rotatablely equipped with handle, both sides bottom described handle are fixedly connected with driving lever and boss respectively, the upper end of described driving lever and described follower lever is hinged, the rotated down of the inherent described boss of described housing is provided with lever, the rotating shaft of described lever is provided with the second torsion spring, the upper end of lever extends to the outside of described boss, the front end of described iron core extends to the side of described lever lower end, and the front end of described pair of gold dollar part extends to the opposite side of described lever lower end; Described moving contact, coil and two gold dollar part are in series by wire.

2. mechanical type breaker mechanism according to claim 1, is characterized in that: the rear end of described fixed contact and two gold dollar part is connected to the wire of drawing in described housing.

3. mechanical type breaker mechanism according to claim 1, is characterized in that: described boss and handle can be pinned when described handle rotates and drives boss to move upward in the upper end of described lever.