Laundry Drum Jointed Output Shaft for Easier Assembly
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Solution Overview
Problem
Existing laundry treating apparatuses face challenges in minimizing durability reduction and easy assembly of the output shaft of the power transmitter and drum, particularly due to complex assembly processes that can lead to damage and reduced durability.
Innovation Solution
The apparatus incorporates a drum with a housing, input and output shafts, a joint connecting these shafts to allow radial vibration, and a gear unit for rotating motion transmission, along with a stator and rotor for generating a rotating field, facilitating easy assembly and minimizing durability degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the drying drum is connected to the motor via a belt (power transmitter), then the structure is simple and easy to assemble, but the number of rotations and rotation direction of the drying drum cannot be easily changed
Solution Approach 1:
The power transmission system is segmented into multiple independent components: motor, belt, pulleys, and drying drum. This segmentation allows each component to be optimized independently - the belt transmission provides simplicity and ease of assembly, while the pulley system enables variable rotation speeds and directions by changing pulley configurations
Solution Approach 2:
The system transitions from a fixed direct connection to a dynamic belt transmission system. The belt allows for adjustable tension and positioning, enabling the drying drum to operate at different rotation speeds and directions while maintaining ease of assembly. The pulley diameters can be varied to achieve different transmission ratios
2Adaptability or versatility
If the drying drum is connected directly to the motor rotation shaft, then the number of rotations and rotation direction can be easily controlled, but the structure becomes more complex and assembly becomes difficult
Solution Approach 1:
The belt and pulleys serve as intermediary elements between the motor and drying drum. This intermediary transmission system provides the flexibility to control rotation speed and direction while keeping the motor and drum structurally independent, simplifying assembly compared to direct coupling mechanisms
3Device complexity
If the input shaft and output shaft of the power transmitter are coaxial, then the structure is compact, but assembly of the drying drum with the output shaft becomes difficult and durability reduction may occur
Solution Approach 1:
The patent transitions from a coaxial (one-dimensional alignment) configuration to a non-coaxial arrangement where the input and output shafts are positioned at different locations. This dimensional change allows the drying drum to be assembled separately and connected via belt transmission, greatly simplifying assembly while maintaining structural compactness through optimized spacing
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
This configuration enhances the durability of the power transmitter and simplifies the assembly of the output shaft and drum, reducing the risk of damage and improving operational efficiency.
Implementation Method 1
a stator fixed to the fixed panel or the housing to form a rotating field, and a rotor fixed at one end of the input shaft and rotated by the rotating field
Data Source
AI summary
The present application relates to a clothing treatment apparatus comprising: a drum comprising a drum body providing a space for storing clothing, a front cover forming the front surface of the drum body, a rear cover forming the rear surface of the drum body, and a drum inlet port formed through the front cover; a fixing panel provided at a position spaced apart from the rear cover; a power transfer portion comprising a housing fixed to the fixing panel, an input shaft, of which one end is located out of the housing and the other end is located in the housing, a first output shaft, of which one end passes through the fixing panel and the other end is located in the housing, a second output shaft fixed to the rear cover, a joint connecting the first output shaft and the second output shaft, and a gear unit located in the housing and transferring the rotation movement of the input shaft to the first output shaft; a stator which is fixed to the fixing panel or the housing and forms a rotating field; and a rotor to which one end of the input shaft is fixed and which is rotated by the rotating field, wherein the joint connects the first output shaft and the second output shaft so that the drum can vibrate in the diameter direction of the drum body.