Air Conditioner Toggle Blade Mechanism for Impeller Disassembly
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Solution Overview
Problem
Conventional air conditioners are inconvenient to clean due to complex disassembly processes, which can lead to contamination and safety hazards, especially when dealing with the impeller and motor components.
Innovation Solution
The air conditioner design incorporates a toggle blade mechanism with a driving and pushing portion, allowing for axial movement of the impeller, and a limiting portion that locks the impeller in place during disassembly, facilitating easy separation from the motor and reducing the risk of re-sleeving, along with a return spring to assist in the disassembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the impeller is fixedly connected to the motor shaft to ensure stable operation, then the reliability of the blower is improved, but the ease of disassembly for cleaning is worsened
Solution Approach 1:
The connection between the impeller and motor shaft is segmented into modular components: the motor shaft sleeve with external threads and the impeller with internal threads. This segmentation allows the impeller to be easily detached from the motor shaft for cleaning while maintaining a secure fixed connection during operation, resolving the contradiction between operational stability and disassembly convenience.
2Manufacturing precision
If multiple fastening components (screws, reinforcing rings) are used to secure the impeller, then the manufacturing precision and assembly reliability are improved, but the device complexity and disassembly difficulty are worsened
Solution Approach 1:
The complex multi-component fastening system (screws, reinforcing rings) is extracted and replaced by a single integrated threaded connection mechanism. The motor shaft sleeve with external threads engages with the impeller's internal threads, providing secure fastening without requiring additional fastening components, thus reducing device complexity while maintaining assembly precision.
3Ease of operation
If the blower and impeller are dismantled together for cleaning, then the ease of disassembly is improved, but the risk of sewage water entering the motor and causing damage is worsened
Solution Approach 1:
The blower assembly is segmented into separable components: the impeller can be independently detached from the motor shaft through the threaded connection mechanism. This allows users to remove only the impeller for cleaning while leaving the motor assembly intact and protected, eliminating the risk of sewage water entering the motor while maintaining ease of disassembly for the impeller.
4Ease of operation
If electrical wires are disconnected and reconnected during impeller removal, then the ease of independent impeller disassembly is improved, but the risk of poor connection and electrical damage is worsened
Solution Approach 1:
The electrical wire connection issue is extracted and eliminated by enabling independent impeller removal. The threaded connection between the motor shaft sleeve and impeller allows the impeller to be detached without disconnecting any electrical wires, as the motor remains connected to the power supply. This maintains electrical connection reliability while achieving independent impeller disassembly.
Data Source
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AI summary
Provided is an air conditioner, in which a toggle blade (341) is movably mounted on a component adjacent to an impeller (320), including a pushing portion (3412) and a driving portion (3413), the pushing portion (3412) is adapted to contact with the impeller (320) and to drive the impeller (320) to move axially. The driving portion (3413) is fixedly connected to the pushing portion (3412). This structure serves to facilitate the disassembly work of the impeller (320) and the motor (141).