Electromagnetic doorlock with button detection and power saving device

摘要

An electromagnetic doorlock with button detection and power saving device includes an electromagnet assembly and a corresponding adsorption assembly. The electromagnet assembly is connected to a button detection module and the adsorption assembly has a pressing member to abut the button detection module. When the door is closed, the electromagnet assembly with electromagnetic attraction attracts the adsorption assembly and the pressing member presses the button detection module. That is, the electromagnetic doorlock usually stays in a low-energy attraction state; however, when the button detection module is triggered, the electromagnetic doorlock returns to a normal lock state for achieving power saving effect and control of the external force detection improvement.

主权项

1. An electromagnetic doorlock with button detection and power saving device, comprising:
an electromagnet assembly having an electric magnet with electromagnetic attraction and an adsorption assembly arranged on a corresponding surface thereof; wherein the electromagnet assembly is electrically connected to a button detection module and the button detection module includes: a base, a trigger circuit on the base having an electrical contact on a surface thereof, the electrical contact electrically connected to a control circuit, and a trigger detector having an elastically deformable body maintaining a biasing force separating the electrical contact and an electrical trigger for moving the electrical trigger axially in dampened manner to contact the electrical contact and thereby selectively open and close the trigger circuit; wherein the button detection module further includes an elastic member arranged on the elastically deformable body; the adsorption assembly including: an adsorption plate locked on a door plate by a bolt assembly and a spring mounted on the bolt assembly for having an elastic displacement space between an inner side of the adsorption plate and the door plate; a pressing member arranged at a periphery of the adsorption assembly and having a front side pressing on the elastically deformable body of the button detection module; wherein during closure of a door, the adsorption assembly is attracted by the electromagnetic attraction of the electromagnet assembly and the button detection module is pressed by the pressing member; when the door is closed and still, the electromagnetic doorlock is in a low power attraction state; when the door is moved by an external action, the button detection module is triggered so that the electromagnetic doorlock rapidly returns to a normal lock state with normal current supply.