CN2166516Y

CN2166516Y - Non-loss self-locking relay

Info

Publication number: CN2166516Y
Application number: CN 92220828
Authority: CN
Inventors: 崔大恒; 李晓舟; 张秉玉; 郭卫敏; 李明放; 陈振方; 石壁温
Original assignee: XINXIN INST OF APPLIED TECHNOLOGY JIAOZUO CITY
Current assignee: XINXIN INST OF APPLIED TECHNOLOGY JIAOZUO CITY
Priority date: 1992-09-22
Filing date: 1992-09-22
Publication date: 1994-05-25
Anticipated expiration: 2002-09-22

Abstract

The utility model relates to an electromagnetic relay which keeps the contact of a latching device open and is electromagnetically controlled, composed of a coil, an iron core, the contact, and the latching device. The latching device is mainly composed of a locking block, a locking clamp and a movable arm. The utility model can not only be used as the breaker of abnormal condition in a common circuit, but also be arranged inside an electric meter with a small volume to serve as the breaker of abnormal condition, such as electric larceny preventing.

Description

Non-loss self-locking relay

The utility model relates to a kind of electromagnetic relay of being opened by the latching device holding contact of Electromagnetic Control.

In protection and control circuit, often need can self-locking relay, great majority adopt the latching relaies that electronic circuit is arranged, though and also have with the relay of mechanical lock buckle self-locking, be not volume bigger than normal be that component strength is not good, be difficult to application in some occasion.

It is less and component strength is also satisfied the demand that the purpose of this utility model discloses a kind of volume, all do not have the latching relay as the usefulness that opens circuit under the unusual service condition of energy consumption at closed circuit and open-circuit condition.

A kind of nothing consume latching relay has coil, iron core, contact, spring and latching device, it is characterized in that latching device is made of lock dog, pintle hook lock, swing arm and spring; Be contained in by shell fragment that lock dog one side on the body is triangular in shape to be contacted with pintle hook lock, opposite side contacts with iron core; Pintle hook lock be hinged with the rigidly connected pillar of body on, an end contacts with lock dog, the other end contacts with locator card on being contained in swing arm; One end of swing arm is hinged on body, between the other end and contact stage clip is housed.

During nominal situation, do not have electric current in the coil, the right-hand member of pintle hook lock is installed in the leg-of-mutton top of lock dog, left end is left behind swing arm by locator card, and stage clip is normally off to the contact pressing, in case electric current appears in work condition abnormality in the coil, iron core is inhaled, lock dog and pintle hook lock disengage, and stage clip is upspring swing arm, and the pintle hook lock right-hand member falls within lock dog triangle bottom, even iron core is released, pintle hook lock can not automatically reset yet, and swing arm can tension, the contact can not press off, and becomes and keep opening state.Therefore, as long as the utility model has the signal code of a unusual service condition just can cut off circuit immediately and keep off state, for a change end during state up to the people, has only a cover coil in the relay, do not need ancillary coil or permanent magnet, volume can be done lessly, and is copper or steel member entirely in the snap close, the member that iron wire of no use is made, its intensity is secure to normal use.

To contrast accompanying drawing below further describes in conjunction with the embodiments.

Description of drawings:

Figure of description is a general assembly drawing of the present utility model.

Embodiment 1, right-hand member is equipped with coil 2 in the body 1, iron core 3, lock dog 4 is near iron core, be contained on the body by shell fragment 5, the pintle hook lock 6 on the lock dog left side be hinged with the rigidly connected pillar 7 of body on, the left upper end of pintle hook lock contacts with locator card 8, locator card is contained on the swing arm 9, swing arm one end and body are hinged, the other end is equipped with stage clip 10, and the other end of spring 10 is contained on the moving contact 11, is arc chute 12 under the moving contact, fixed contact 13, for consideration mechanically, adorned a small pressure spring 14 below the moving contact, adorned a pair of auxiliary contact 15 between lock dog and the swing arm.

Embodiment 2, a kind of latching relay that is used for three-phase electricity, its left end be equipped with three pairs insulated from each other and contact that be synchronized with the movement is right, to replace moving contact 11 and the fixed contact 13 in the example 1, the remainder structure is with example 1.

This two embodiment may diminish to kilowatt-hour meter can be held, and is used for constituting burglar-proof electric circuit.

Claims

1, a kind of nothing consume latching relay has coil, iron core, contact, spring and latching device, it is characterized in that latching device is made of lock dog, pintle hook lock, swing arm and spring; Be contained in by shell fragment that lock dog one side on the body is triangular in shape to be contacted with pintle hook lock, opposite side contacts with iron core; Pintle hook lock be hinged with the rigidly connected pillar of body on, an end contacts with lock dog, the other end contacts with locator card on being contained in swing arm; One end of swing arm is hinged on body, between the other end and contact stage clip is housed.

2, relay according to claim 1 is characterized in that the contact is that three groups of contacts insulated from each other are right.