Laundry Dryer Drum Driver Nesting to Reduce Rear Panel Vibration
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Solution Overview
Problem
Conventional laundry dryers face challenges in maintaining the structural integrity and efficiency of the rear panel due to external forces, leading to vibration, noise, and potential damage, and require additional components that reduce the drum volume and increase the overall thickness of the dryer.
Innovation Solution
A laundry treating apparatus with a rotation shaft that is inserted into and coupled to the drum, allowing the motor and decelerator to be partially accommodated on the drum surface, reducing the overall thickness and ensuring the drum's length is maintained, using a bushing for the rotation shaft and a male-female coupling structure between the driver and drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driver is fixed to the rear surface of the cabinet, then the drum can be rotated, but the thin rear panel is easily deformed or vibrated by external forces, causing the rotation shaft to distort and generate noise
Solution Approach 1:
A support plate is introduced as an intermediary component between the rear panel and the driver components. The support plate has a first region that contacts the rear panel and a second region that supports the rotation shaft and decelerator, distributing external forces away from the thin rear panel and preventing deformation and vibration.
2Ease of operation
If the rotation shaft extends from the drum, then the driver can be coupled to the drum, but additional components increase the overall thickness of the dryer
Solution Approach 1:
The support plate is disposed inside the drum, with the rotation shaft extending from the driver through the support plate to contact the drum's rear surface. This nested arrangement allows the driver components to be coupled to the drum while minimizing the overall thickness by nesting components within the existing drum space.
3Length of stationary object
If the rotation shaft is inserted into the drum, then the drum length is maintained and thickness is reduced, but the rotation shaft must be precisely coupled to ensure reliable operation
Solution Approach 1:
The support plate serves as a mediator that provides a stable mounting surface for the rotation shaft and decelerator. By distributing forces and providing a rigid support structure, the support plate reduces the sensitivity to manufacturing precision requirements while maintaining reliable operation.
Data Source
Figure 1
Figure 2(a)~2(b)
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AI summary
The present disclosure relates to a laundry treating apparatus capable of reducing a volume independently occupied by a driver (M) that rotates a drum (200) for accommodating laundry therein, and a volume of a space defined between a rear surface (220) of the drum and a cabinet rear panel (120).