Relay

A relay and contact technology, which is applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve the problems of arc damage life, fast temperature rise and shortening of relay contacts, etc., so as to slow down the temperature rise and reduce contact point loss effect

Inactive Publication Date: 2014-05-14
XIAN BLUE DIAMOND ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a relay, which solves the technical problems of the existing relays that the contact temperature rises quickly and the service life is shortened due to arc damage.

Method used

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Embodiment Construction

[0016] A relay, comprising an iron core 1, a coil 2 wound on the iron core, a movable contact 3, an upper fixed contact 6 and a lower fixed contact 7, the upper and lower surfaces of the movable contact 3 are provided with contacts, and the movable The top of the contact piece 3 is provided with an upper fixed contact piece 6, and the bottom of the movable contact piece 3 is provided with a lower fixed contact piece 7. The upper surface of the contact 4 and the lower fixed contact 7 is provided with a lower contact 5 corresponding to the contact position on the lower surface of the movable contact 3 .

[0017] The moving contact piece 3 includes two horizontally arranged moving contact pieces 3, one end of the moving contact piece 3 is fixedly connected, and the upper and lower surfaces of the other ends of the two moving contact pieces 3 are provided with a contact point; correspondingly, The contacts on the lower surface of the upper fixed contact piece 6 correspond to the t...

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Abstract

The invention provides a relay which helps to solve the technical problem that temperature rise of a contact point in a conventional relay is quick, the contact point is easy to be damaged by an arc, and thus the service life of the contact point is reduced. A relay comprises a moving contact, an upper static contact and a lower static contact. The moving contact, the upper static contact and the lower static contact are respectively added with auxiliary contacts. The auxiliary contacts share half of an on-off current, so that the speed of temperature rise is allowed to be slow, the on-off current that the relay can bear wholly is twice as much as the original on-off current, contact loss is reduced, and on-off frequency of the relay is more than twice as much as the original on-off frequency.

Description

technical field [0001] The invention relates to a relay. Background technique [0002] Existing relays include iron cores, coils, moving contacts, contacts, fixed contacts, etc. Such as figure 1 As shown, as long as a certain voltage is applied to both ends of the coil, a certain current will flow through the coil, thereby generating an electromagnetic effect, and the moving contact piece will overcome the pulling force of the return spring and attract to the iron core under the action of electromagnetic force attraction. , so as to drive the moving contact of the moving contact piece to pull in the static contact (normally open contact). When the coil is powered off, the electromagnetic attraction will also disappear, and the moving contact piece will return to its original position under the reaction force of the spring, so that the moving contact will be attracted to the original static contact (normally closed contact). In this way, it is attracted and released, so as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/54
Inventor 王水平
Owner XIAN BLUE DIAMOND ELECTRONICS
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