Wall-Mounted Drum Washing Machine with Fall Detection and Power Cutoff
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Solution Overview
Problem
Conventional wall-mounted drum washing machines can unexpectedly fall, leading to potential electric shocks when they come into contact with water on the floor, due to installation defects or other issues, necessitating a solution to sense and prevent such accidents.
Innovation Solution
A wall-mounted drum washing machine equipped with sensors to detect mounting abnormalities and falls, using a buffer member, a rear panel mounted on the wall, and a control unit to cut off power supply when an abnormality or fall is sensed, thereby preventing accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wall-mounted drum washing machine is mounted without sufficient support or with loose fastening, then the installation is simple and quick, but the machine may fall due to vibrations during washing operations
Solution Approach 1:
The buffer member is pre-installed on the fastening member before mounting the washing machine to the wall. This preliminary action ensures that the buffer member is already in position to detect any loosening or falling, allowing for early intervention before the machine actually falls
Solution Approach 2:
The buffer member acts as a sensor that provides feedback about the mounting state. When the fastening member loosens or the machine falls, the buffer member detects the change in contact state with the wall and sends a signal to the control unit, which then cuts off power supply to prevent accidents
2Stability of the object's composition
If the washing machine is securely fastened to the wall, then mounting stability is improved, but the complexity of installation increases due to additional sensing components
Solution Approach 1:
The buffer member serves multiple functions: it acts as a cushioning element during normal operation, a sensor for detecting mounting abnormalities, and a trigger for the safety mechanism. This multi-functionality reduces the need for separate components, thereby limiting the increase in installation complexity
Solution Approach 2:
The buffer member serves as an intermediary between the fastening member and the control unit. It translates mechanical changes (loosening or falling) into electrical signals that the control unit can process, simplifying the overall sensing mechanism while maintaining mounting stability
3Device complexity
If no sensing mechanism is installed, then the device complexity is low, but the reliability of preventing electric shock accidents is poor
Solution Approach 1:
The washing machine has the ability to self-detect mounting abnormalities and self-protect by automatically cutting off power supply when the buffer member detects a change in contact state. This self-service capability enhances safety reliability without requiring external monitoring systems
Solution Approach 2:
The buffer member provides beforehand cushioning by detecting potential falling conditions before they result in accidents. When the buffer member loses contact with the wall or detects abnormal movement, it triggers the control unit to cut off power supply in advance, preventing electric shock accidents before they can occur
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 solution effectively prevents accidents by immediately detecting and responding to mounting issues and falls, ensuring user safety by automatically cutting off power supply to the washing machine.
Implementation Method 1
a buffer member interposed between a through-hole and a wall surface... a sensor configured to sense a contact state between the rear panel and the wall surface
Data Source
AI summary
Provided is a wall-mounted drum washing machine which includes a rear panel having a buffer member interposed between a through-hole and a wall surface and mounted on the wall surface through a fastening member inserted through the through-hole, a tub containing wash water and supported by the rear panel, and a box unit coupled to the rear panel so as to surround the tub. The wall-mounted drum washing machine includes a sensor configured to sense a contact state between the rear panel and the wall surface, a control unit configured to determine a mounting abnormality of the drum washing machine based on the sensed contact state, and a power supply unit configured to control power supply according to the determination result of the control unit.