Door lock mechanism

Abstract

The invention discloses a door lock mechanism of electrical equipment. The door lock mechanism can prevent the release caused by manual misoperation or vibration. The door lock mechanism comprises a locking arm, a locking dog, a coil iron core, a first coil and a second coil, wherein the locking arm swings around a shaft; the locking dog is connected with the locking arm; when the locking arm swings around the shaft, the locking dog moves to a locking position or a release position; the coil iron core is connected with the locking arm, and the linear reciprocating motion of the coil iron core pushes the locking arm to swing around the installing shaft of the locking arm; and the first coil and the second coil are used for driving the coil iron core to move back and forth and driving the locking arm to swing, thereby leading the locking dog to be in the locking position or release position. An alternating current voltage is directly used for the door locking mechanism, thereby an alternating current to direct current circuit is omitted; and the coil iron core directly pushes the locking arm, thereby a screw device is omitted. The door lock mechanism provided by the invention has simple structure and reliable operation and is easy to manufacture.

Description

technical field [0001] The invention relates to a door lock mechanism of electrical equipment, in particular to a door lock mechanism of electrical equipment capable of preventing release caused by human misoperation or vibration. Background technique [0002] The use safety of electrical equipment has certain requirements on the door lock mechanism of the equipment. Taking a large-scale top loading washing machine as an example, the locking of its top plate has certain requirements on the door lock mechanism. One of the requirements is that if the top cover of the washing machine can be opened when the large drum type washing machine is running, because the washing machine is rotating at a high speed (or still rotating at a high speed due to inertia), it may cause harm to the human body. Therefore, when the washing machine door lock mechanism is running in the washing machine, even if someone operates the door opening device of the washing machine at this time or the washi...

AI Technical Summary

Problems solved by technology

[0005] First, door lock manufacturers generally do not produce DC motors, which need to be outsourced, and the cost and cycle are not easy to control

[0006] Second, a DC power supply and / or an AC-to-DC circuit is required

[0007] Third, when the driving structure of the screw (crew) device is in use, because the starting torque of the ordinary DC motor is relatively small and sensitive to voltage, it will sometimes get stuck and cause the failure of the washing machine cover to be opened.

[0008] Fourth, the door lock mechanism is relatively large, and the door equipment of some electrical equipment (including the upper cover of the washing machine) cannot accommodate such a door lock mechanism.

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