Relay

Abstract

The invention discloses a relay, comprising a base, a rear cover, a movable contact spring I, a movable contact spring II, a framework, a coil connected on the framework, a static contact spring I, a movable leading-out spring I, a static contact spring II and a movable leading-out spring II, wherein the static contact spring I, the movable leading-out spring I, the static contact spring II and the movable leading-out spring II are sequentially connected on the base from left to right; the base is connected with the rear cover, the static contact spring I is connected with a static contact I, the lower part of the movable contact spring I is connected with the movable leading-out spring I, the upper part of the movable contact spring I is connected with a movable contact I capable of being sucked on the static contact I, the static contact spring II is connected with a static contact II, the lower part of the movable contact spring II is connected with the movable leading-out spring II, the upper part of the movable contact spring II is connected with a movable contact II capable of being sucked on the static contact II, the polarity of the coil can be changed, the framework is positioned at the left of the movable contact spring I, and a retention mechanism, which can retain the movable contact spring I and the movable contact spring II in the state that the coil is power on after the coil is power off, is arranged between the framework and the movable contact spring I as well as the movable contact spring II. The invention can save electric energy and prolong the service life of the coil.

Description

Technical field: [0001] The invention relates to an electronic control device, specifically a relay. Background technique: [0002] We know that when the relay in the conventional technology is working, 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 armature will drive the reed to move under the action of electromagnetic force. The moving contact of the moving contact and the static contact (normally open contact) on the static reed are sucked together. After the moving contact and the static contact are pulled together, the external circuit is connected. In order to keep the external circuit in a conducting state, we need Continue to supply power to the coil to keep the moving contact and the static contact closed. However, supplying power to the coil for a long time will not only cause a waste of electric energy, but also cause the heat generation of the c...

AI Technical Summary

Problems solved by technology

[0002] We know that when the relay in the conventional technology is working, 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 armature will drive the reed to move under the action of electromagnetic force. The moving contact of the moving contact and the static contact (normally open contact) on the static reed are sucked together. After the moving contact and the static contact are pulled together, the external circuit is connected. In order to keep the external circuit in a conducting state, we need Continue to supply power to the coil to keep the moving contact and the static contact closed. However, supplying power to the coil for a long time will not only cause a waste of electric energy, but also cause the heat generation of the coil to continue to increase, which will affect the service life of the coil.

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