Ceiling Fan Hanging Head Assembly With Wire-Routing Gap
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Solution Overview
Problem
Conventional ceiling fans experience structural instability and noise due to direct contact between metal parts, and the transverse bolt through the motor shaft hinders electric wire routing, complicating assembly.
Innovation Solution
A hanging head connecting mechanism featuring a connecting seat with a first and second bushing, and connecting pieces that separate the hanging rod from the motor shaft, creating a wire-routing gap and preventing direct metal contact, thus reducing noise and facilitating assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a bolt is mounted transversely through the motor shaft to connect the hanging rod and motor shaft, then the structural stability is improved, but the wire routing is hindered
Solution Approach 1:
The connecting mechanism is divided into multiple connecting pieces (first connecting piece, second connecting piece, third connecting piece) that are distributed around the motor shaft at different angular positions. This segmentation allows the structural connection function to be distributed across multiple components, creating gaps between them for wire routing while maintaining overall structural stability through the combined effect of all connecting pieces.
2Strength
If the hanging rod and motor shaft are made of metal and directly contacted, then the structural strength is improved, but noise is generated due to direct metal contact
Solution Approach 1:
A connecting piece is introduced as an intermediary component between the hanging rod and the motor shaft. This connecting piece acts as a mediator that maintains the structural connection and strength while preventing direct metal-to-metal contact between the hanging rod and motor shaft, thereby eliminating the noise generated by direct contact during operation.
Solution Approach 2:
The connecting piece serves as a functional copy or substitute for the direct metal-to-metal connection. Instead of allowing the hanging rod and motor shaft to contact directly, the connecting piece replicates the connection function while modifying the contact interface to eliminate harmful noise, effectively creating an improved version of the direct connection.
3Ease of operation
If multiple connecting pieces are used to connect the hanging rod and motor shaft, then the wire routing is facilitated, but the device complexity increases
Solution Approach 1:
Each connecting piece is designed to perform multiple functions simultaneously: it provides structural connection between the hanging rod and motor shaft, creates gaps for wire routing, and prevents direct metal-to-metal contact to reduce noise. This multi-functionality reduces the need for separate components for each function, thereby limiting the increase in overall device complexity despite using multiple connecting pieces.
Data Source
AI summary
A hanging head connecting mechanism of a ceiling fan has a connecting seat, a hanging rod, and a motor shaft. The connecting seat has a connecting plate, a first bushing, a second bushing, and multiple connecting pieces. The second bushing is located around the first bushing. The hanging rod is mounted in the connecting seat and disposed between the first bushing and the second bushing. The motor shaft is mounted in the connecting seat and disposed inside the first bushing. The connecting pieces are serially mounted through the second bushing, the hanging rod, and the motor shaft. Two of the connecting pieces are each mounted on a respective one of two opposite sides of the second bushing, and a wire-routing gap is formed between the first connecting piece and the second connecting piece.