Electromagnetic door lock of electrical equipment

A technology for electromagnetic door locks and electrical equipment, applied in non-mechanical transmission-operated locks, building locks, buildings, etc., can solve the problems of high material cost and assembly cost, abnormal state of electromagnetic door locks, affecting the final use of products, etc. Reliable operation, reduced parts count, and high availability

Inactive Publication Date: 2012-09-19
ILLINOIS TOOL WORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method needs to add more parts and control lines, which makes the material cost and assembly cost higher; more parts means more failure modes, which reduces the reliability of the product
[0004] In addition, during the transportation of existing electromagnetic door locks (incl

Method used

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  • Electromagnetic door lock of electrical equipment
  • Electromagnetic door lock of electrical equipment
  • Electromagnetic door lock of electrical equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0122] The working process of the first embodiment is as follows:

[0123] During normal operation, the door of the electrical equipment is closed, and the door hook 24 pushes the slide block 20 (ie 20A) to the locked position, the lock hole of the slide block 20 (ie 20A) is aligned with the lock block 4 (ie 4A), and the lock block 4 (ie 4A) can freely enter and exit the lock hole 30; when the door lock receives the drive signal, the electromagnetic coil 10 drives the iron core 17, and drags the refill lock frame 11 (ie 11A) to the position of the lock, where the refill lock frame 11 ( That is 11A) is separated from the lock block 4 (ie 4A), and the switch shrapnel 5 drives the lock block 4 (ie) 4A to move downward due to its own elastic force, the switch is closed, and the electrical equipment can work normally; at the same time, the lock block 4 (ie 4A) enters It is fixed in the lock hole 30 of the slide block 20 (ie 20A), the slide block 20 (ie 20A) also locks the door hook...

no. 2 example

[0129] The working process of the second embodiment is as follows:

[0130] During normal operation, such as Figure 13B As shown, the electrical equipment door is closed, and the door hook 24 pushes the slide block 20 (i.e. 20B) to the locked position, and its lock hole 30 is aligned with the lock block 4 (i.e. 4B), and the lock block 4 (i.e. 4B) can come in and out freely; The door lock receives the driving signal, the electromagnetic coil 10 drives the iron core 17, drags the refill lock frame 11 (ie 11B) to the lock position, and at the same time the lock block 4 (ie 4B) moves downward along the guide groove 28, and the switch shrapnel 5 also moves downwards, the switch is closed, and the electrical equipment can work normally; meanwhile, the lock block 4 (i.e. 4B) is inserted into the lock hole 30 of the slide block 20 (i.e. 20B) to lock it, and the slide block 20 (i.e. 20B) also The door hook 24 is blocked, and the electrical equipment door cannot be opened. When the e...

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PUM

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Abstract

The invention discloses an electromagnetic door lock of electrical equipment. The electromagnetic door lock comprises a slider block device, a starter, a mechanical sensor and a mechanical linkage device, wherein the slider block devices is moved to a closing position along with shutoff of a door of the electrical equipment, the starter is used for providing power for switching on and switching off a switch device, the mechanical sensor is used for determining the closing position of the slider block device (20), when the slider block device is not located at the closing position, the starter is locked by the mechanical linkage device, and when the slider block device is located at the closing position, the starter is released by the mechanical linkage device, so that the switch device is located at a switch-on position. The mechanical sensor and the mechanical linkage device not only control the electromagnetic door gate in use of the electrical equipment, but lock movable components in the electromagnetic door gate in a transportation process so as to prevent the movable components from playing in the transportation process, and avoid from causing the components of the electromagnetic door lock in an abnormal state.

Description

technical field [0001] The invention relates to a door lock for commercial or household appliances, in particular to an electromagnetic door lock with a door position sensing device. Background technique [0002] The normal use of electrical equipment has certain requirements on the door lock mechanism of the equipment. When the door of commercial or household electrical equipment (such as washing machine, dishwasher, etc.) is not fully closed, the door lock mechanism should be able to prevent the door lock mechanism from malfunctioning, and avoid the change of the door lock state and affect the subsequent operation of the electrical equipment. [0003] Some existing electromagnetic door locks may cause malfunction of the electromagnetic door lock due to lack of a door position sensing device. For example, when the door of the washing machine is not closed (or not fully closed), the electromagnetic door lock is in a wrong locked state, which affects the subsequent operation...

Claims

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Application Information

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IPC IPC(8): E05B47/00
Inventor 黎松
Owner ILLINOIS TOOL WORKS INC
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