Filament Lamp Rotary Switch Structure for Multi-Gear Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional filament lamps with sliding covers face limitations in gear adjustment due to restricted sliding ranges and potential blockages by foreign matter, making operation inconvenient, especially when notches on the plastic housing are obstructed.
Innovation Solution
A filament lamp design featuring a lateral rotary structure with a rotary ring and drive connecting structure that allows for gear switching by rotating the lateral rotary structure on the plastic housing, eliminating the need for a sliding groove and preventing foreign matter from blocking the notch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a sliding cover is used for gear adjustment, then the structure is simple, but the sliding range is limited and operation is inconvenient
Solution Approach 1:
The patent inverts the conventional sliding motion into a rotary motion. Instead of moving the cover linearly along a groove, the user rotates the cover, and this rotary motion is converted to linear motion through a cam mechanism to actuate the gear switch. This inversion resolves the contradiction by providing unlimited rotary adjustment range while maintaining compact structure.
Solution Approach 2:
The patent employs curved cam surfaces that convert rotary motion into linear displacement. The cam mechanism transforms the circular rotation of the cover into the linear movement required for gear switching, effectively converting rotational degrees of freedom into the necessary linear travel for multi-gear adjustment.
2Reliability
If a sliding cover is used for gear adjustment, then the structure is simple, but foreign matter may block the notch and affect switching
Solution Approach 1:
The patent extracts and eliminates the problematic sliding groove and notch structures from the design. By replacing the sliding cover mechanism with a rotary cover and cam mechanism, the design removes the vulnerable notches that were prone to foreign matter blockage, thereby improving switching reliability without compromising the basic functionality.
Solution Approach 2:
The cam mechanism serves as an intermediary between the rotary cover and the gear switch actuator. This intermediary converts rotary motion to linear motion without requiring direct linear sliding paths, thereby eliminating the notches and grooves that were susceptible to foreign matter intrusion while maintaining the gear switching function.
3Adaptability or versatility
If a sliding cover is used for gear adjustment, then the structure is simple, but multi-gear design stroke requirements cannot be met
Solution Approach 1:
The patent employs a dynamic cam mechanism where the cam profile is specifically designed to provide varying displacement characteristics during rotation. This dynamic mechanism allows a single rotary motion to produce the differentiated linear strokes required for multiple gear positions, enabling multi-gear functionality without requiring proportionally increased structural dimensions.
Solution Approach 2:
The patent transitions from one-dimensional linear sliding to two-dimensional rotary motion combined with cam-induced linear displacement. By utilizing the rotational dimension and the cam profile geometry, the system achieves multiple gear stroke requirements within a compact form factor, effectively using dimensional transformation to resolve the stroke limitation.
Data Source
AI summary
A filament lamp includes a plastic housing, a transfer switch, and a laterally rotary structure. The transfer switch is disposed in the plastic housing, an outer wall of the plastic housing is provided with an opening, the laterally rotary structure is rotatably disposed on the outer wall of the plastic housing, an inner side, close to the plastic housing, of the laterally rotary structure extends to form a drive connecting structure, and the drive connecting structure passes through the opening to be connected with the transfer switch in a transmission way. With the design of the laterally rotary structure, when gears are adjusted by a user, the transfer switch is operated by the drive connecting structure only by rotating the laterally rotary structure on the outer wall of the plastic housing, so as to switch the gears.