Microwave Drawer Speed Control for Spillage Prevention
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Solution Overview
Problem
Microwave heating apparatuses with drawer doors often cause liquids to spill due to collisions during opening or closing, and the operation time is lengthy, affecting user satisfaction.
Innovation Solution
A microwave heating apparatus with a controllable drawer door speed, featuring a speed adjusting button and a driving device with variable operating speeds, controlled by a gear selection module and timing module, allowing users to select suitable speeds for opening or closing the drawer door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the drawer door opens or closes quickly, then the operation time is reduced, but the drawer door collides with the body causing liquid to spill out
Solution Approach 1:
The drawer door speed is made dynamically adjustable through multiple speed gears (first speed gear, second speed gear, third speed gear) that allow the door to operate at different speeds based on operational needs, resolving the contradiction between fast operation and collision prevention
Solution Approach 2:
The operating speed parameter of the drawer door is changed by selecting different speed gears. The system transitions from a fixed speed operation to a variable speed operation, enabling the door to move at appropriate speeds to avoid collision and liquid spillage while maintaining operational efficiency
2Object-affected harmful factors
If the drawer door opens or closes slowly, then liquid spillage is prevented, but the operation time increases affecting user satisfaction
Solution Approach 1:
The system provides dynamic speed selection with multiple gear options, allowing users to adjust the drawer door speed according to the situation, thus preventing liquid spillage when needed while maintaining fast operation when safe
Solution Approach 2:
The drawer door operation can switch between different speed phases during opening or closing cycles, using different speed gears at different stages of the motion to optimize both safety and efficiency
3Device complexity
If a fixed speed driving device is used, then the device complexity is reduced, but the adaptability to different operating conditions deteriorates
Solution Approach 1:
The driving device is segmented into multiple speed gears (first speed gear, second speed gear, third speed gear), each providing a different operating speed. This segmentation allows the system to adapt to different operating conditions while maintaining a relatively simple overall structure
Solution Approach 2:
The driving device is designed with multi-functionality by incorporating multiple speed gears that can be selected based on operational requirements, making a single device adaptable to various speed needs without requiring multiple separate driving mechanisms
Data Source
AI summary
A microwave heating apparatus includes: a body defining a microwave heating chamber therein; a drawer door moveably mounted on the body to open or close the microwave heating chamber; a door switch button disposed on the body or the drawer door and configured to control the drawer door to be opened or closed; a speed adjusting button disposed on the body or the drawer door and configured to control a moving speed of the drawer door; a driving device with a controllable operating speed mounted on one of the body and the drawer door, connected with the other of the body and the drawer door in a transmission way, and configured to drive the drawer door to move; a controller communicated with the door switch button, the speed adjusting button and the driving device respectively.