Integrated Oven Door Locking Mechanism for Self-Cleaning Safety
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Solution Overview
Problem
During the self-cleaning function of an oven, the existing safety devices are inadequate in preventing users from inadvertently opening the door, risking burns from high temperatures, and they compromise the lock function and appearance.
Innovation Solution
A door lock device comprising a fixing rack, operation rack, solenoid device, engaged fragment, and locking pin is installed within the oven receptacle, where the solenoid device forcibly locks the door during self-cleaning and unlocks it upon completion, using a controller and temperature sensor to manage the locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety device is installed at the outside of the door, then the user can be protected from heat, but the user may still open the door by force and the appearance is poor
Solution Approach 1:
The locking mechanism is extracted from the external door surface and integrated into the receptacle interior. The solenoid device and locking pin are positioned inside the receptacle, removing the visible external locking components while maintaining the locking function, thus improving appearance without sacrificing reliability
Solution Approach 2:
The locking mechanism is nested within the receptacle structure. The solenoid device, engaged fragment, and locking pin are arranged in a compact configuration inside the receptacle space, allowing the locking function to be embedded within the existing oven structure rather than adding external components
2Object-affected harmful factors
If the door is equipped with a safety device, then burns can be prevented, but the door may still be opened artificially
Solution Approach 1:
The locking pin serves as an intermediary mechanical element between the solenoid device and the door. When the solenoid activates, it moves the locking pin to engage with the engaged fragment on the door, creating a physical barrier that prevents door opening during high-temperature operation, thus providing both heat protection and locking security
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents users from opening the door during high-temperature self-cleaning, ensuring safety and maintaining the lock function while enhancing the oven's appearance by integrating the locking mechanism within the receptacle.
Implementation Method 1
The solenoid device is installed in the receptacle and has a rod. The engaged fragment is assembled to the rod of the solenoid device and ascends or descends depending on an operation of the solenoid device.
Data Source
AI summary
A door lock device includes a fixing rack, an operation rack, a solenoid device, an engaging member, and a locking pin. The fixing rack is installed in a receptacle and has a hinge shaft. The operation rack is coupled with the hinge shaft. The solenoid device is installed in the receptacle and has a rod. The engaging member is assembled to the rod and ascends or descends in response to the operation of the solenoid device. The locking pin is installed in the operation rack and performs a locking or unlocking function to the door.


