Electromagnetic door lock, door lock assembly and electric appliance

A technology for electromagnetic door locks and door locks, which is applied to building locks, locks controlled by non-mechanical transmissions, buildings, etc., can solve problems such as high cost, waste of power resources, and inconvenient use, and achieve simple structure, low renovation cost, Applicable effect

Inactive Publication Date: 2016-03-09
ILLINOIS TOOL WORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PTC emergency release system is to tighten and release the unlocking parts to unlock when the power is turned off by heating the ceramic sheet when it is energized and cooled when the power is turned off. This system has a complex structure, huge parts, and high cost. Waste of power resources; the rope emergency release system is to set a pull rope inside and outside the door lock to pull the locking pin of the door lock. This system needs to open a window on the electrical equipment and set a pull rope, which is inconvenient to use

Method used

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  • Electromagnetic door lock, door lock assembly and electric appliance
  • Electromagnetic door lock, door lock assembly and electric appliance
  • Electromagnetic door lock, door lock assembly and electric appliance

Examples

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Embodiment Construction

[0033] Various embodiments of the invention will be described below with reference to the accompanying drawings, which form a part hereof. It should be understood that although directional terms such as "front", "rear", "upper", "lower", "left", "right", "perpendicular", or "parallel" are used in the present invention Various example structural parts and elements of the present invention are described, but these terms are used herein for explanatory purposes only, based on the example orientations shown in the drawings. Since the disclosed embodiments of the present invention may be arranged in different orientations, these directional terms are for illustration only and should not be viewed as limiting. In the following drawings, the same reference numerals are used for the same components, and the similar reference numerals are used for similar components to avoid repeated descriptions.

[0034] For easy identification, the marks in the figure are:

[0035] Door lock 100 ...

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PUM

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Abstract

A door lock (100) comprises a door lock box (101). The door lock box (101) comprises a locking device (230), a magnet (235) arranged on the locking device (230) and a release hole (265) formed in the door lock box (101). The locking device (230) has a locking position and a releasing position, the door lock (100) is closed when the locking device (230) is at the locking position, and the door lock (100) is released when the locking device (230) is at the releasing position. The release hole (265) is used for allowing an unlocking magnet (254) to be inserted, and when the unlocking magnet (254) is inserted into the release hole (265), the magnet (235) on the locking device (230) is pushed, and the locking device (230) is moved to the releasing position. The door lock can be opened when an electric appliance is powered off.

Description

technical field [0001] The invention relates to a door lock used for commercial or household appliances, in particular to an electromagnetic door lock with emergency unlocking function. Background technique [0002] The normal use of electrical equipment has certain requirements on the door lock mechanism of the equipment. The doors of commercial or household electrical appliances such as washing machines, dishwashers, etc. need to be completely sealed and closed until the work task is completed before they can be opened normally. But after some emergencies such as power failure, the electromagnetic starting mechanism of door lock loses power, and door lock can not release door hook, and the door of electric appliance will not be able to open. The emergency release device is to artificially open the door lock under such circumstances. [0003] Existing technologies such as PTC emergency release system or rope emergency release system can also open the door lock in emergenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B47/02E05B15/00
Inventor 黎松
Owner ILLINOIS TOOL WORKS INC
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