Flame Sheet Drive Mechanism for Compact Fire Simulation
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Solution Overview
Problem
Existing electronic lighting devices simulating real fire are structurally complex and costly due to the need for a swing mechanism that requires significant space and precise magnetic pole alignment, increasing manufacturing costs and complexity.
Innovation Solution
A compact electronic lighting device with a flame sheet, supporting frame, and drive mechanism where the drive mechanism is positioned at the middle part of the flame sheet, allowing the ferromagnet to remain within the electromagnetic coil's strong magnetic field, reducing the need for precise pole alignment and utilizing magnetic force more efficiently, thus simplifying assembly and reducing power requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive mechanism is positioned below the flame sheet, then the flame sheet can be actuated to swing, but the device becomes structurally complex and requires large space
Solution Approach 1:
The drive mechanism is repositioned from a vertical arrangement (below the flame sheet) to a horizontal arrangement (at the middle part of the flame sheet). This dimensional change allows the electromagnetic coil to wrap around the flame sheet, creating a compact structure that reduces both vertical and horizontal space requirements while maintaining the swinging function.
2Reliability
If the drive mechanism is positioned below the flame sheet, then the flame sheet can be actuated to swing, but manufacturing costs increase due to complex structure
Solution Approach 1:
By changing the spatial arrangement from vertical to horizontal positioning, the patent simplifies the overall structure. The electromagnetic coil wraps around the flame sheet's middle section, eliminating the need for complex mounting structures and reducing assembly steps, thereby lowering manufacturing costs.
3Device complexity
If the magnet is positioned at an end of the pendulum member, then the drive mechanism can be compact, but the magnetic field strength is insufficient requiring stronger current
Solution Approach 1:
The patent repositions the ferromagnet from the end of the flame sheet to the middle section, and changes the electromagnetic coil arrangement to wrap around the flame sheet. This creates a concentrated magnetic field zone at the middle section where the ferromagnet is always positioned, maximizing magnetic field strength and minimizing energy consumption.
4Reliability
If the drive mechanism is positioned below the flame sheet, then the flame sheet can swing, but precise magnetic pole alignment is required increasing assembly complexity
Solution Approach 1:
The patent changes the coil arrangement from a linear positioning system to a wrapping configuration around the flame sheet. This creates a symmetric magnetic field distribution that is less sensitive to alignment errors, significantly reducing assembly precision requirements while maintaining reliable flame sheet swinging.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution results in a more compact, cost-effective, and easier-to-assemble device that effectively simulates a swinging flame using a weaker current, eliminating the need for complex structural arrangements and reducing manufacturing costs.
Implementation Method 1
the drive mechanism comprises an electromagnetic coil and a permanent magnet/magnetic medium; the permanent magnet/magnetic medium is mounted on the middle part of the flame sheet; the electromagnetic coil and a circuit board are provided on the supporting frame; the electromagnetic coil is also positioned corresponding to the middle part of the flame sheet to exert the driving force to the permanent magnet/magnetic medium on the flame sheet
Data Source
AI summary
An electronic lighting device simulating real fire comprising a flame sheet (1), a supporting frame (2), a light emitting element (3) and a drive mechanism; the flame sheet (1) comprises a flame section (1.1), a balance section (1.2) and a supporting point (1.3); the supporting point (1.3) is positioned between the flame section (1.1) and the balance section (1.2); the drive mechanism is positioned corresponding to a middle part of the flame sheet (1); the drive mechanism exerts driving force to the middle part of the flame sheet (1). The electronic lighting device simulating real fire has a compact design. When the flame sheet swings, the ferromagnet is always positioned within the strong magnetic field of the electromagnetic coil. Therefore, the magnetic force can be much better utilized and thus a weaker current should be sufficient to drive the flame sheet to swing reciprocally.