Washing Machine Motor Stator Mounting for Cooling and Assembly
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Solution Overview
Problem
Washing machines face challenges in heat dissipation and assembly efficiency, particularly in the design of the motor and stator components, which affect the overall performance and ease of assembly.
Innovation Solution
The motor design incorporates a stator with a mounting unit featuring positioning bosses, circular reinforcing ribs, connection ribs, and heat dissipation holes to enhance cooling efficiency and facilitate assembly by providing clear assembly positions and air circulation passages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the stator is secured to the tub using fastening bolts passing through fastening holes in the insulator, then the stator can be firmly fixed, but the insulator requires additional fastening structures and assembly steps
Solution Approach 1:
The mounting unit integrates multiple functions into a single structure: positioning bosses for alignment, connection bosses for fastening, reinforcing ribs for structural support, and heat dissipation holes for cooling. This consolidation eliminates the need for separate fastening components and simplifies the overall assembly process while maintaining strong fixation.
Solution Approach 2:
The mounting unit is divided into distinct functional segments: positioning bosses for alignment, connection bosses for bolt attachment, reinforcing ribs for structural integrity, and heat dissipation holes for thermal management. This segmentation allows each feature to perform its specific function efficiently while being part of an integrated structure.
2Productivity
If the motor operates continuously, then washing performance is maintained, but heat accumulates in the stator core reducing efficiency
Solution Approach 1:
The mounting unit incorporates heat dissipation holes that create a porous structure, allowing air to flow through and carry away heat from the stator core. This porous design enables continuous operation by maintaining thermal management, preventing heat accumulation that would otherwise reduce efficiency and performance.
3Ease of operation
If positioning features are added to the mounting unit, then assembly alignment is improved, but manufacturing complexity increases
Solution Approach 1:
The positioning bosses, connection bosses, reinforcing ribs, and heat dissipation holes are all integrated into a single mounting unit structure that is injection molded as one piece with the insulator. This merging approach enables positioning features to be created during the standard injection molding process without requiring additional manufacturing steps or assemblies.
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 improved motor design achieves better heat dissipation and simplifies the assembly process by ensuring proper alignment and secure fixation of the stator to the tub, enhancing the cooling efficiency and operational performance of the washing machine.
Implementation Method 1
at least one heat dissipation hole is provided in the mounting unit
Data Source
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AI summary
A motor for washing machines having a first insulator of the motor which surrounds a lower portion of a stator core (110) of a stator (100) of the motor and includes a ring-shaped mounting unit including a plurality of connection bosses (135) so as to mount the stator on a tub (20) of a washing machine, and at least one heat dissipation hole (137) is provided on the mounting unit, thereby improving a cooling effect of the stator core.