Laundry Drum Induction Heating Module with Active Coil Heat Discharge
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Solution Overview
Problem
Existing laundry treating apparatuses face inefficiencies and structural limitations in heating systems, including high energy consumption, complex structures, and longer drying times due to indirect heating methods, and lack detailed induced heating modules and connection methods for enhanced efficiency and stability.
Innovation Solution
A laundry treating apparatus with an induction heating module that directly heats a drum using a coil and permanent magnet system, featuring a base housing and cover housing design for active heat discharge and uniform heating, ensuring efficient heat management and stability during vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If indirect heating systems (hot-air drying system or heat pump) are used, then heating function is provided, but drying time becomes longer and structure becomes more complex
Solution Approach 1:
The patent replaces indirect mechanical heating systems (hot-air drying system with external circulating path, heat pump with evaporator and condenser) with direct induction heating. The induction heating module generates electromagnetic fields that directly heat the drum, eliminating the need for complex air circulation mechanisms and heat exchange components, thereby significantly reducing drying time while maintaining heating reliability
Solution Approach 2:
The patent extracts and removes the complex intermediate heating components (external circulating path, evaporator, condenser, expansion valve, compressor) from the system. By using induction heating directly on the drum, the system eliminates these unnecessary components, simplifying the overall structure and reducing drying time without compromising the heating function
2Reliability
If indirect heating systems (hot-air drying system or heat pump) are used, then heating function is provided, but structure becomes more complicated and production cost increases
Solution Approach 1:
The patent replaces complex mechanical heating systems with electromagnetic induction heating. The induction heating module uses electromagnetic fields to directly heat the drum, eliminating the need for mechanical air circulation systems, heat exchangers, and refrigerant cycles, thereby significantly simplifying the overall system structure and reducing production costs while maintaining reliable heating function
Solution Approach 2:
The patent extracts and removes complex intermediate components (external circulating path, evaporator, condenser, expansion valve, compressor) from the heating system. By implementing direct induction heating on the drum, the system eliminates these unnecessary components, resulting in a simpler structure with fewer parts and lower production costs
3Power
If coil is wound in induction heating module, then heating is generated, but heat accumulation causes coil degradation
Solution Approach 1:
The patent introduces air as an intermediary cooling medium between the coil and the drum. The air passage allows continuous airflow to pass through and cool the coil, preventing heat accumulation and degradation. This intermediary cooling system enables the coil to maintain high heating power while ensuring its own thermal management and long-term reliability
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 enables faster and more efficient heating and drying by directly heating the drum, reducing energy consumption, enhancing durability and efficiency of the induction heating module, and preventing coil overheating, while ensuring uniform heating and stability.
Implementation Method 1
A coil is wound in an induction heating module provided in the laundry treating apparatus such as a washing machine and a drying machine, and heat may be transferred to a heating target (a drum of the washing machine) by an induced current generated by applying a current to the coil.
Implementation Method 2
the cover housing includes a through portion for discharging the heat by passing through the cover housing up and down, and the cover housing forms a section upwardly inclined toward the through portion to move the heat generated from the coil along the inclined section and discharge the heat to the through portion
Data Source
AI summary
A laundry treating apparatus includes a cabinet, a drum provided inside the cabinet and formed of a metal material, and an induction module configured to heat the drum, The induction module includes a base housing for accommodating a coil, and a cover housing forming a moving space of heat generated from the coil, jointed to an upper portion of the base housing, the cover housing includes a through portion for discharging the heat by passing through the cover housing up and down, and the cover housing forms a section upwardly inclined toward the through portion to move the heat generated from the coil along the inclined section and discharge the heat to the through portion. It is possible to prevent a temperature of the coil from being excessively increased, and enhance durability and efficiency of the induction module by active discharge of heat generated from the coil.