CN86202595U

CN86202595U - Low power-consumptiong contactor

Info

Publication number: CN86202595U
Application number: CN 86202595
Authority: CN
Inventors: 洪波
Original assignee: SHANDONG MARINE COLLEGE
Current assignee: SHANDONG MARINE COLLEGE
Priority date: 1986-04-26
Filing date: 1986-04-26
Publication date: 1987-07-22

Abstract

The utility model discloses a low power-consumption contactor, belonging to an electromagnetic relay device and comprising an electromagnetic holding mechanism and the fitting mechanism of an electromagnetic machine which is composed of a moving iron core, a still iron core without a short circuiting ring, a main coil and a reset spring. The utility model is characterized in that the electromagnetic holding mechanism with low power-consumption which is composed of an electromagnet, an armature, a coil, a lever and a crank is adopted. The low power-consumption contactor completes the work process of the instant energization and attraction, the work process that the machine is locked by a light current and the work process the release in power-off. The low power-consumption contactor has the advantages of simple structure, low cost and obvious power saving effect.

Description

Low power-consumptiong contactor

A kind of Low power-consumptiong contactor.

The utility model belongs to electromagnetic relay device.

In the prior art, behind the equipment operations such as actuating motor, contactor just is in "on" position always, and is out of service until equipment.Caused the consumption of a large amount of electric energy like this, the quantity of contactor is many more in system, and capacity is big more, and running time is long more, and its electric energy that expends is just many more." power-saving contactor " device that application number CN85201089 provides certain power savings is arranged, but its power consumption is still bigger, and the reason one has air gap between moving iron core of secondary electromagnet and the static iron core, so need bigger tractive effort.Its two, when the moving iron core of secondary electromagnet drives lock dog, need overcome the restoring force of the back-moving spring of lock dog lower end.Its three, as the lock dog that fulcrum is arranged, the position arrangement of secondary electromagnet and back-moving spring is improper, causes the resistance brachium, power arm is short, so tractive effort will increase.

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of simple in structure, reliable in action, contactor low in energy consumption, that function is constant.

The utility model is the improvement on existing contactor basis.Structurally not to realize its lock-out state by the tractive effort of secondary electromagnet, but the motion when utilizing moving iron core adhesive, by leverage armature " is sent " to electromagnet, later on electromagnetic force is passed through the leverage reaction again on moving iron core, make it keep in touch state.

Description of drawings:

Fig. 1 is the contactor construction sketch.

Fig. 2 is the schematic diagram of low-power consumption maintaining body.

Fig. 3 is control circuit figure.

Among Fig. 2, fix an axle (5) on moving iron core (1), an end of crank (8) overlaps thereon, and the other end links to each other with the galianconism end of lever (6) with axle, the long arm end of lever (6) axle (9) fixed armature (10).And be fixed on the stationary part of contactor as the axle (7) of fulcrum, on outer casing inner wall.Corresponding to the adhesive and the release of moving iron core (1), armature (10) should have two extreme positions mutually, and spacing thereon disposal is put one and kept electromagnet (11), makes it to be harmonious the magnetic circuit closure just with armature (10).Electromagnet (11) is fixed on the stationary part of contactor, is wound with coil (12) on it, is with short-circuited conducting sleeve (not drawing among the figure) on the end face.

Setting initial state is the release condition of contactor, with reference to accompanying drawing 3, working condition of the present utility model is as follows: after pressing start button QA, the main coil of contactor (3) energising, moving iron core (1) moves downward, the lever (6) that drives crank (8) and be attached thereto moves upward armature (10).When sound iron core (1,2) contacted, auxiliary contact c closure kept coil (12) energising on the electromagnet (11), and armature this moment (10) is in the upper limit position place just, so thereupon by electromagnet (11) adhesive.Unclamp start button QA then, coil (3) outage, but because electromagnet (11) adhesive armature (10) still, the work by lever (6) and crank (8) locks in order to less power and moves iron core (1) it is resetted equally, is keeping the attracting state of contactor.

When pressing stop button TA, keep electromagnet coil (12) outage, armature (10) loses suction, and moving iron core (1) resets under the effect of back-moving spring (4), and the back auxiliary contact c that resets disconnects thereupon, and electric power loop cuts off.

The torque ratio of suitable selection lever (6), can make keep electromagnet (11) adhesive armature (10) after, keep in touch the attracting state of device with less electromagnetic force, so can adopt the multi-grade lever transmission mechanism, with increasing lever moment ratio, and reduced volume, power consumption is reduced as far as possible.

The utlity model has simple in structure, reliable in action, power savings outstanding feature, thereby be applicable to the big capacity of control, long-time alive circuit and equipment.

Claims

1, electromagnetic relay device, a kind of Low power-consumptiong contactor.It comprises moving iron core [1], is fixed on the static core [2] on the base plate, coil [3], back-moving spring [4], four electromagnetic and mechanical matching mechanism and low-power consumption electromagnetism maintaining bodies of forming.The composed as follows of its electromagnetism maintaining body that be characterised in that of the present utility model:

Be with the electromagnet [11] of short-circuited conducting sleeve on a, the end face, be fixed on the stationary part of contactor.

B, the coil [12] on the electromagnet [11].

C, with the axle [7] fix an armature [10] as the long arm end of the lever [6] of fulcrum.

D, a crank [8] that links to each other with the galianconism end of lever [6] by axle.

E, crank [8] are connected on the moving iron core [1] with axle [5].

2, according to the described contactor of claim 1, its feature also is lever (6), can adopt the multi-grade lever kind of drive.