an electric lock

Abstract

The invention provides an electric lock, which adopts a clutch mechanism composed of a driven gear and a turntable. The first surface of the driven gear is provided with a mounting position for the turntable to be embedded in. The side wall of the installation position is provided with an arc-shaped concave position. The turntable There is an arc-shaped convex block corresponding to the arc-shaped concave position on the outer wall of , and the central angle corresponding to the arc-shaped concave position is recorded as α, and the central angle corresponding to the arc-shaped convex block is recorded as β, then α and β satisfy: α -β≥180°. Based on the above structure, there is a vacant rotation position greater than or equal to 180° between the driven gear and the turntable, that is, no matter what angle the gear drives the turntable to rotate to, the gear can rotate at least 180°, so that when the lock is switched manually, the knob It can stay in multiple positions, has the advantages of high practicability, good operation feel, and does not interfere with power supply stability, etc., and has a simple structure, simple control logic, and low design cost.

Description

technical field [0001] The invention relates to the technical field of locks, in particular to an electric lock. Background technique [0002] In addition to relying on the motor to control the switch, the existing electric locks can also manually rotate the switch, which brings some problems: since the lock body and the motor inside the lock are always connected, when the lock is manually switched, the motor will be turned on and off. Driven in reverse, thus generating reverse electromotive potential energy, which interferes with the stability of the power supply; moreover, the resistance generated by the motor makes the user have to use a large force to twist the lock body, which has a poor hand feel and cannot be locked quickly. [0003] In view of the above problems, the electric locks currently on the market are generally equipped with a motor return mechanism, that is, after the motor drives the lock body to perform the opening and closing action, the motor returns in ...

AI Technical Summary

Problems solved by technology

[0002] In addition to relying on the motor to control the switch, the existing electric locks can also manually rotate the switch, which brings some problems: since the lock body and the motor inside the lock are always connected, when the lock is manually switched, the motor will be turned on and off. Reverse drive, thus generating reverse electromotive potential energy, which interferes with the stability of the power supply; moreover, the resistance generated by the motor makes the user have to use a large force to twist the lock body, which has poor hand feeling and cannot be locked quickly

However, the motor back-off mechanism generally has problems such as complex structure, complex control logic, and high design cost, which is not conducive to popularization and application.

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