Laundry treatment device
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Solution Overview
Problem
Laundry treatment devices with manipulation portions in the door face issues with power supply durability and maintenance due to the need for electric wires connecting the door to the washing machine body, which reduces wire durability and complicates separation for maintenance.
Innovation Solution
A laundry treatment device with a control panel in the door that uses wireless power transmission between the door and the washing machine body, eliminating the need for electric wires and allowing for easier maintenance by providing a power transmitter and receiver for stable power supply and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electric wire connects the door to the washing machine body to supply power to the manipulation portion, then power can be supplied to the control panel, but the durability of the electric wire is reduced due to repeated movement when the door opens or closes
Solution Approach 1:
The patent removes the electric wire connection between the door and washing machine body, extracting the problematic component that caused durability issues. Power is supplied wirelessly through a power transmitter in the body and power receiver in the door, eliminating the mechanical connection that degraded with repeated door movement.
Solution Approach 2:
The patent replaces the mechanical electric wire connection with a wireless power transmission system using electromagnetic fields. The power transmitter generates electromagnetic signals that are received by the power receiver, substituting the mechanical wire connection with a field-based energy transfer mechanism.
2Reliability
If an electric wire connects the door to the washing machine body, then power can be supplied to the manipulation portion, but it becomes difficult to separate the door from the body for maintenance
Solution Approach 1:
The patent removes the electric wire connection that physically tied the door to the body, enabling easy separation for maintenance. The wireless power transmission system allows the door to be completely detached without affecting power supply capability, as power is transmitted through electromagnetic fields rather than physical connections.
3Reliability
If the manipulation portion is provided in the door, then it prevents malfunction by user's body, but requires complex wiring to supply power to the moving door
Solution Approach 1:
The patent removes all wiring connections between the door and body, eliminating the complex electrical infrastructure required to support a door-mounted control panel. The wireless power and communication system reduces the entire wiring subsystem to minimal internal connections within the door assembly itself.
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 ensures stable power supply to the control panel on the door, facilitates smooth power transmission during door movement, and simplifies maintenance by eliminating the need for electric wires, while enabling quick signal communication between the door and body.
Implementation Method 1
a power transmitter and a power receiver are provided in the door and the body to supply wireless power to the control panel provided in the door
Data Source
AI summary
A laundry treatment device according to an aspect of the present invention comprises: a body which receives laundry therein and has an inlet through which the laundry is introduced; a door connected to the body, and opening or closing the inlet; a control panel provided on the door to receive, from a user, an input of an operation signal for treating the laundry; a power transmitter provided on the body to transmit wireless power; and a power receiver provided on the door to receive the wireless power and transmit same to the control panel.