Ceiling Fan Blade Bracket Guiding Surfaces Assembly
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Solution Overview
Problem
The existing ceiling fan assembly process is inefficient due to the need for operators to hold fan blades with one hand while aligning and locking screws with the other, leading to screws frequently falling during assembly.
Innovation Solution
The ceiling fan design includes a blade bracket with guiding surfaces and a fan blade with guiding limiting parts, allowing for quick and accurate alignment of locking members from top to bottom, and incorporates supporting ribs and an elastic plate for secure clamping and positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the traditional assembly method is used where operators hold the fan blade with one hand and lock screws with the other, then the assembly process requires manual dexterity and control, but screws frequently fall to the ground causing assembly delays and inefficiency
Solution Approach 1:
The fan blade assembly is segmented into multiple components: the fan blade body, the blade bracket with guiding surfaces, the housing with accommodating space, and the locking member. This segmentation allows each component to have a specific function - the guiding surfaces guide the locking member, the accommodating space receives and secures the blade bracket, and the locking member fastens the assembly. This division eliminates the need for operators to manually hold the entire fan blade while assembling, as the components self-align through the guiding structures.
Solution Approach 2:
The blade bracket serves as an intermediary component between the fan blade and the locking mechanism. It features guiding surfaces that interface with the locking member, and it is received by the accommodating space in the housing. This intermediary structure mediates the assembly process by providing a controlled path for the locking member and securing the blade bracket in place, eliminating the need for manual holding and preventing screw dropout.
2Manufacturing precision
If screws are aligned with holes from bottom to top during assembly, then the assembly follows a traditional sequence, but this approach causes screws to frequently fall to the ground during the process
Solution Approach 1:
The traditional bottom-to-top assembly sequence is inverted. Instead of aligning screws from below, the locking member is inserted from the top through the guiding surfaces of the blade bracket. The guiding surfaces are positioned such that they guide the locking member downward into the accommodating space, reversing the traditional direction and preventing screw dropout by maintaining control of the locking member throughout the insertion process.
Solution Approach 2:
The guiding surfaces on the blade bracket perform a preliminary action by pre-aligning the locking member with the accommodating space before the actual locking occurs. The guiding surfaces are shaped and positioned to automatically guide the locking member into the correct position as it is inserted, eliminating the need for precise manual alignment and preventing the locking member from falling during the process.
3Ease of operation
If manual handling of fan blades is required during assembly, then operators can control the positioning, but this increases labor requirements and assembly time
Solution Approach 1:
The assembly structure is designed to be self-aligning and self-securing. The guiding surfaces on the blade bracket automatically guide the locking member into the correct position, and the accommodating space in the housing automatically receives and secures the blade bracket. This self-service mechanism eliminates the need for operators to manually hold and position the fan blade components, reducing labor requirements and simplifying the assembly process while maintaining precise positioning.
Data Source
AI summary
A ceiling fan includes an outer shield, a middle ring, a blade bracket, and a fan blade. The middle ring is pivotally connected to the outer shield and rotates relative to the outer shield. The blade bracket protrudes from the middle ring and has two guiding surfaces located on opposite sides of the blade bracket. The fan blade is combined with the middle ring by the blade bracket. The fan blade has an opening on an end close to the blade bracket. The fan blade further includes a housing, one or more supporting ribs, and two guiding limiting parts.