Binary Motor Assembly for Independent Drum and Impeller Drive
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Solution Overview
Problem
Existing laundry appliance motors lack the capability for independent and selective operation of rotating drums and impellers, limiting the flexibility and efficiency of agitation sequences and requiring more space and resources for installation.
Innovation Solution
A binary motor system with two motors housed in a common unit, utilizing separate drive belts and a transfer shaft to independently operate the drum and impeller at different speeds and directions, allowing for compact and efficient mechanical action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate motors are used to operate drum and impeller independently, then operational flexibility and efficiency are improved, but device complexity and space requirements increase
Solution Approach 1:
Two separate motors are combined into a single common housing, creating a binary motor assembly that operates both the drum and impeller independently. The motors share common mounting structures, electrical connections, and control systems, reducing overall complexity while maintaining independent operational capability of each driven component.
Solution Approach 2:
The binary motor assembly serves multiple functions: it independently drives the drum rotation, independently drives the impeller rotation, and can operate in various combinations (drum only, impeller only, or both together). This multi-functionality is achieved through a unified motor housing that contains separate motor units for each function.
2Adaptability or versatility
If separate motors are used to operate drum and impeller independently, then operational flexibility and efficiency are improved, but manufacturing and installation costs increase
Solution Approach 1:
The motor housing, mounting brackets, electrical connections, and control systems are designed as integrated assemblies that can be manufactured as single units or pre-assembled modules. This merging of components reduces the total number of parts, simplifies manufacturing processes, and lowers assembly costs compared to installing two completely separate motor systems.
3Productivity
If traditional motor configuration is used, then device simplicity is maintained, but operational flexibility and wash efficiency are limited
Solution Approach 1:
The motor system is segmented into two independent motor units within a common housing, each capable of independently controlling either the drum or impeller. This segmentation allows for independent speed control, direction control, and operational timing of each component, enabling varied agitation sequences that improve wash efficiency while keeping the overall system integrated and manageable.
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
Enables independent operation of the drum and impeller, reducing wash time through varied agitation sequences and requiring less space and resources, while being cost-effective and efficient in manufacturing and maintenance.
Implementation Method 1
A first drive belt extends between the first motor and the drum. A second drive belt extends between the second motor and the impeller.
Data Source
AI summary
A laundry appliance includes a drum rotationally positioned within a structural cabinet. An impeller is rotationally positioned within the drum. The impeller is selectively and independently operable with respect to the drum. A binary motor has a first motor and a second motor disposed within a common housing. A first drive belt extends between the first motor and the drum. A second drive belt extends between the second motor and the impeller. The first and second motors engage the first and second drive belts on a belt side of the common housing.