Induction Drum Coil Mounting for Vibration-Stable Laundry Heating
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Solution Overview
Problem
Conventional laundry treatment apparatuses using induction heating face issues with securely fixing the coil to the tub due to vibrations during operation, leading to potential disconnection and fatigue failure, and the existing solutions do not effectively minimize lead wire resistance or maximize coil turns and area.
Innovation Solution
A laundry treatment apparatus design that securely fixes the coil using a base housing with a fixing rib, where the wire is wound around the rib and drawn through penetrated portions to minimize lead wire length and resistance, and the lead wires are arranged to reduce vibration phase differences and interference with the coil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the coil is fixed directly to the tub without a base housing, then the structure is simple, but the coil becomes dislodged due to vibration
Solution Approach 1:
A base housing is introduced as an intermediary component between the tub and the coil. The base housing includes a fixing rib that securely holds the coil, while the entire base housing is fixed to the tub. This mediator structure isolates the coil from direct vibration exposure and provides stable fixation without significantly increasing overall system complexity
2Adaptability or versatility
If the lead wires are arranged in different directions, then the routing is flexible, but the wire length increases and resistance increases
Solution Approach 1:
The two lead wires are drawn out of the base housing in the same direction rather than in opposite directions. This merging of routing paths allows the wires to be bundled together, minimizing the spacing between them and reducing the overall length of wire required, thereby decreasing resistance and energy loss
3Productivity
If the coil area is increased to improve heating efficiency, then the heating performance improves, but the space requirement and device complexity increase
Solution Approach 1:
The wire is wound around a fixing rib that extends in the radial direction from the base housing. This three-dimensional winding approach allows the coil to achieve a larger effective area and number of turns by utilizing the vertical dimension provided by the fixing rib, rather than being constrained to a flat plane, thereby improving heating efficiency without proportionally increasing horizontal space requirements
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 secures the coil, reduces the risk of damage and disconnection, minimizes lead wire length, and increases the number of coil turns and area, enhancing the efficiency of the induction heating process.
Implementation Method 1
an induction module configured to inductively heat the drum, wherein the induction module includes a coil formed by winding a wire
Implementation Method 2
laundry treatment apparatuses using induction heating as new heating means have been developed
Data Source
AI summary
A laundry treatment apparatus is disclosed. The laundry treatment apparatus includes a cabinet, a tub arranged in the cabinet, a drum arranged in the tub and formed of a metal material, and an induction module configured to inductively heat the drum, wherein the induction module includes a coil formed by winding a wire, and a base housing including a base body arranged on the tub, and a fixing rib arranged on the base body to fix coil, wherein the wire is drawn into the base body in one direction, wound around the fixing rib, and drawn out of the base body in the same direction.