Electromagnet-Lever Locking Mechanism for Cooking Machine Door Safety
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Solution Overview
Problem
Cooking machines lack a locking mechanism to prevent children from opening the door during operation, posing a risk of scalding due to high temperatures.
Innovation Solution
A locking mechanism using an electromagnet and lever on the cooking machine's door, which locks the door during operation and unlocks it after completion, ensuring safety by preventing accidental opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a button-press type door opening structure is provided without locking mechanism, then the door can be easily opened by users, but children can accidentally open the door during operation and be scalded by hot food or utensils
Solution Approach 1:
The door opening lever is designed to change its functional state dynamically: during operation it is locked by the electromagnet to prevent opening, and after operation it becomes freely operable. This dynamic state change resolves the contradiction by adapting the door opening mechanism to different operational phases.
Solution Approach 2:
The manual button-press mechanism is supplemented with an electromagnet-based locking system. The electromagnet replaces pure mechanical operation with electromagnetic control during the locking phase, preventing accidental opening while maintaining the original mechanical button structure for normal operation.
2Reliability
If a locking mechanism with electromagnet and lever is added to prevent accidental opening, then door opening safety is improved, but the device complexity increases
Solution Approach 1:
The electromagnet serves multiple functions: it acts as a locking mechanism during operation, and can be integrated with the existing button-press structure. The lever serves both as a door opening actuator and as a component that interacts with the electromagnet for locking. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The locking mechanism is merged with the existing door opening structure. The electromagnet is positioned to interact directly with the lever that is already part of the button-press mechanism. This integration combines the locking function with the existing door opening components rather than adding completely separate systems.
3Reliability
If the electromagnet locks the lever during operation, then the door is secured against accidental opening, but the door opening lever cannot be triggered to open the door
Solution Approach 1:
The locking system is designed to be dynamic rather than static. The electromagnet engages the lever during operation to prevent opening, but disengages after operation to allow normal door opening. This temporal dynamic behavior ensures both locking effectiveness and operational accessibility at appropriate times.
Solution Approach 2:
The locking mechanism operates periodically: locked during the cooking operation phase, and unlocked during the post-operation phase. This periodic switching between locked and unlocked states ensures safety during critical periods while maintaining accessibility when needed.
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
The mechanism effectively reduces the risk of children being scalded by keeping the door locked during cooking and allowing safe opening after the machine has finished its cycle.
Implementation Method 1
an electromagnet which is mounted on the back surface of the front door panel and may be in a locked or unlocked state with respect to the lever
Data Source
AI summary
A locking mechanism and a door opening control method are provided for household appliances. The locking mechanism is provided on a front door panel of a door of a cooking machine and used for controlling the opening and closing of the door and includes: a lever which is mounted on the back surface of the front door panel and at least a portion of which protrudes from an opening provided on the front door panel to the front surface of the front door panel; an electromagnet which is mounted on the back surface of the front door panel and may be in a locked or unlocked state with respect to the lever. The locking of the door of the cooking machine may be realized through the cooperation between the electromagnet and the lever. Real-time control of the door may be realized to better ensure safety of the user.