CN2265591Y

CN2265591Y - Energy-saving relay

Info

Publication number: CN2265591Y
Application number: CN 95235090
Authority: CN
Inventors: 毛兴鹏; 梁景凯
Original assignee: WEIHAI BRANCH OF HARBIN POLYTECHNICAL UNIV
Current assignee: WEIHAI BRANCH OF HARBIN POLYTECHNICAL UNIV
Priority date: 1995-11-11
Filing date: 1995-11-11
Publication date: 1997-10-22
Anticipated expiration: 2005-11-11

Abstract

The utility model relates to an energy-saving relay which is provided with a casing body, a static iron core, a movable iron core, contacts, a coil, a resetting spring and a corresponding coil control circuit, wherein, a permanent magnet block is fixedly clamped in the middle of the static iron core and the position of the permanent magnet block is adjustable. A minor holding electric current in the permanent magnet block can ensure a reliability contact between the movable and the static iron cores during attracting. The utility model has the advantages of simple structure, reasonable structure, obvious energy saving effect, uniform control method with the existing similar products, same erection joint mode which enables direct replacement, wide application for various relays, contactors and instruments or equipment with similar principles.

Description

A kind of energy-saving relay

The utility model relates to a kind of essential electronic element, specifically a kind of energy-saving relay.

We know, at present, mostly widely used various relays, contactor are to utilize the solenoid adhesive armature, during work, need in the coil keep the adhesive of armature with bigger electric current, thereby have consumed lot of energy.People have done many effort for the energy consumption that reduces relay, contactor itself, announced a kind of nothing consume latching relay as patent 92220828.x, have coil, iron core, contact and latching device, latching device mainly is made up of lock dog, pintle hook lock and swing arm, is used for as circuit breaker.Above-mentioned relay has changed control mode, with traditional power up adhesive, outage release type relay, contactor can not compatible, convenient replacement, thereby limited their application.

The purpose of this utility model is exactly the deficiency that has various energy-saving relays now in order to overcome, and a kind of simple structure, reasonable is provided, and control mode is consistent with traditional relay, and it is easy to use to replace, and the energy-saving relay that can cut down the consumption of energy significantly.

For achieving the above object, a kind of energy-saving relay, it is provided with housing, static iron core, moving iron core, contact, coil, back-moving spring and respective coil control loop, it is characterized in that static iron core in the middle of clamping fix a permanent magnetic iron block, permanent magnetic iron block position in static iron core is adjustable.Its to the gravitation of moving iron core less than the power that iron core is flicked.Like this, in the utility model when work, is as long as in addition lessly in coil keep electric current, the reliable contact of sound iron core in the time of just can guaranteeing adhesive.

It is bigger that the coil control circuit of the utility model coil setting can realize powering up immediate current, reaches the attract current value, is reduced to rapidly after the coil adhesive and keeps current value.Owing to a permanent magnetic iron block is set in the static iron core, thus need that coil produces keep the suction-combining force seldom, as long as have one less keep electric current and can satisfy the adhesive requirement, thereby can significantly reduce the energy consumption of work, reach purpose of energy saving.

The utility model simple structure, its control mode is the same with the control mode of traditional relay, contactor, the adhesive of promptly switching on, outage discharges, thereby when installing and using, do not need to change the existing mode of connection, but direct substitution is used.The utility model can be widely used in the control of automatic control switch occasion implementation procedure.

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is the utility model electromagnetic mechanism structural representation, also is the schematic diagram of embodiment.

As can be seen from Figure, a kind of energy-saving relay, it is provided with housing, contact, static iron core 1, moving iron core 2, coil 3, spring, and their installation connection is identical with existing relay, and this does not describe in detail.The utility model is offered a groove in the centre of static iron core 1, assembly is fixed a permanent magnetic iron block 4 in the groove, gap between the position of permanent magnetic iron block 4 in groove, itself and the moving iron core can and install and fix according to the type adjustment of relay, makes its magnetic pull to moving iron core be slightly less than the tension force that spring flicks moving iron core.Like this, the moving iron core in outage back can discharge under spring action automatically.During the work adhesive, keep the adhesive of moving iron core jointly by adding magnetic pull and coil electromagnetism power,, thereby only need the less electric current of keeping after making the coil adhesive so it is many to need the electromagnetic force of coil generation to reduce, reduced the energy consumption of coil widely, energy-saving effect is remarkable.

Requirement to circuit in the utility model wire loop is: powering up moment has big electric current, and with the moving iron core of adhesive, coil current can be reduced to rapidly and keep electric current after the adhesive.Provided a kind of coil control circuit schematic diagram among the figure, its circuit that capacitor C is in parallel with resistance R of connecting in the loop can be realized above-mentioned functions.

The utility model control mode is consistent with existing various product, and it installs that connected mode is identical can direct substitution, can be widely used in various relays, the instrument and equipment that contactor and principle are close.

Claims

1, a kind of energy-saving relay, it is provided with housing, static iron core, moving iron core, contact, coil, back-moving spring and respective coil control loop, it is characterized in that static iron core in the middle of clamping fix a permanent magnetic iron block.

2, energy-saving relay as claimed in claim 1 is characterized in that being provided with a groove in the middle of the said static iron core, and the permanent magnetic iron block assembly is fixed in the groove of static iron core.