Laundry treating apparatus
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Solution Overview
Problem
Conventional laundry treating apparatuses face inefficiencies due to slip between belts and components, restricted rotation speed and direction changes, and space constraints caused by the placement of drivers and air flow systems, leading to compromised performance and stability.
Innovation Solution
A laundry treating apparatus with a driver directly connected to the drum, utilizing a mounting bracket and fastening system to enhance coupling stability and rigidity, and an efficient air flow structure that improves air supply and space utilization, allowing for compact design and stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver is disposed at the lower portion of the cabinet and connected to the drum using a belt, then the structure is compact, but slip easily occurs between the belt and the driver or between the belt and the drum
Solution Approach 1:
The patent removes the belt transmission intermediary and directly couples the driver to the drum through a mounting bracket, eliminating the slip problem caused by belt-drum contact while maintaining structural compactness
Solution Approach 2:
The mounting bracket serves as a rigid intermediary structure that directly connects the driver shaft to the drum shaft, replacing the flexible belt transmission and ensuring reliable power transmission without slip
2Volume of moving object
If the driver is disposed at the lower portion of the cabinet, then space utilization is improved, but there is a constraint on arrangement of components and restriction on space allocated to each component
Solution Approach 1:
The mounting bracket extends vertically from the lower cabinet portion upward to reach the drum, utilizing the vertical dimension to resolve the spatial conflict between compact driver placement and adequate component arrangement space
3Device complexity
If the driver is disposed at the rear of the drum, then the belt can be omitted, but the driver needs to be coupled to the rear panel which complicates the structure
Solution Approach 1:
The mounting bracket integrates multiple functions: it couples the driver to the drum, provides structural support, and facilitates alignment of the driving shaft with the drum rotation shaft, simplifying the overall coupling structure despite rear placement
4Force
If a separate transmission such as a reducer is used to increase torque, then torque is improved, but the structure becomes more complex
Solution Approach 1:
The patent eliminates the reducer transmission component entirely by directly coupling the driver to the drum, achieving torque transmission without the added complexity of separate transmission mechanisms
Data Source
AI summary
A laundry treating apparatus includes: a cabinet including a rear plate at a rear surface, a drum rotatably disposed inside the cabinet and configured to receive laundry, the drum including a drum rear surface facing the rear plate, and a driver coupled to the rear plate and connected to the drum. The rear plate comprises a driver mounting portion coupled to the driver, the driver mounting portion is coupled to (i) the driver from a rear side of the driver mounting portion and (ii) a mounting bracket to cover at least a portion of the driver mounting portion from a front side of the driver mounting portion, and the driver, the driver mounting portion, and the mounting bracket are at least partially stacked to be coupled to each other.