Brushless Motor Driving Device Integration in Air Conditioner
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Solution Overview
Problem
Conventional brushless motor assemblies face challenges with externally mounted driving devices, leading to complex wiring, spatial inefficiencies, and safety concerns due to lack of proper mounting locations, especially when the motor spindle extends outward, hindering integrated construction and practicality.
Innovation Solution
A U-shaped support rack is designed to internally house the driving device, providing a recessed space for secure mounting, ventilation, and secure fixation using raised ribs and bolts, enabling a unitary and simplified assembly that is independent of spindle orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the driving device is externally mounted on the brushless motor, then the motor structure is simpler to manufacture, but the wiring becomes complicated and spatial arrangement is inefficient
Solution Approach 1:
The patent merges the driving device with the brushless motor by providing a mounting box structure that integrates both components into a single unitary assembly. The driving device is mounted within the mounting box that is formed as part of the motor housing, eliminating the need for separate external mounting and complex wire connections between separate components.
2Adaptability or versatility
If the driving device is externally mounted on the brushless motor, then the motor assembly is more flexible in installation, but the spatial arrangement becomes inefficient and unsafe
Solution Approach 1:
The driving device and brushless motor are combined into a unitary assembly where the mounting box structure is integrated with the motor housing. This integration ensures that the driving device is securely positioned relative to the motor, improving operational safety and reliability while maintaining installation flexibility through the overall modular design.
3Device complexity
If the driving device is mounted on the machine chassis instead of the motor, then the motor structure remains simple, but the assembly requires additional wire connections and increases overall complexity
Solution Approach 1:
The mounting box structure is designed as an integrated part of the motor housing, combining the motor and driving device into a single manufacturable unit. This allows the entire assembly to be manufactured as one piece or pre-assembled unit, simplifying the overall manufacturing process while maintaining motor structure simplicity.
4Ease of manufacture
If the driving device is externally mounted, then the motor can be manufactured separately, but the final assembly requires complex wiring and mounting procedures
Solution Approach 1:
The mounting box structure integrates the driving device mounting function directly into the motor housing, allowing the entire assembly to be manufactured as a single unit or pre-assembled module. This eliminates the need for separate mounting procedures and complex wiring connections during final assembly, significantly reducing assembly time.
Data Source
AI summary
The present invention relates to an improved assembly of driving device for brushless motor of air-conditioner, which is a design providing a unitary and simple assembly of driving device of brushless motor, including a brushless motor body and a support rack. The support rack is made in the form of a U-shape having opposite ends forming end plates that extend high upwards. Besides providing a recess for positioning, assembling, and fixing the motor body, the U-shaped support rack forms a space that exactly accommodates the driving device therein, whereby the structure of the motor is reduced in volume and the purposes of use of simplified structure and practical convenience are realized.