Fan Lamp Circuit Relocation for Safe Shade Cleaning
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Solution Overview
Problem
The existing fan lamp designs pose a risk of electric shock during cleaning due to the driving circuit board being mounted on the same side as the light source, making it accessible when the lamp shade is removed.
Innovation Solution
The driving circuit board is mounted on the side of the lamp panel facing away from the light source, with an accommodating space and baffles forming a mounting groove for secure fixation, and a dust-proof cover is used to prevent dust ingress, integrating the light source and driving components onto a single circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the driving circuit board is mounted on the same side as the light source, then the structure is simplified and easier to manufacture, but it creates a risk of electric shock during cleaning when the lamp shade is removed
Solution Approach 1:
The patent divides the lamp assembly into distinct functional zones by mounting the driving circuit board on the opposite side of the light source. This spatial segmentation separates the electrical components from the illumination components, allowing the light source side to be accessed for cleaning without exposing users to the circuit board, thereby eliminating the electric shock risk while maintaining manufacturing simplicity
Solution Approach 2:
The driving circuit board is extracted from the light source side and relocated to the opposite side of the lamp panel. This extraction removes the harmful electrical component from the cleaning zone, allowing the lamp shade and light source to be accessed safely without the presence of exposed circuitry that could cause electric shock
2Object-affected harmful factors
If the driving circuit board is mounted on the side facing away from the light source, then safety during cleaning is improved, but the device complexity increases due to additional mounting structures
Solution Approach 1:
The lamp panel serves multiple functions: it acts as the mounting surface for both the light source and the driving circuit board on opposite sides, and provides structural support for the entire assembly. This multi-functionality allows the circuit board to be mounted on the rear side without requiring additional complex mounting structures, as the lamp panel itself provides the necessary mounting interface
Solution Approach 2:
The patent utilizes the third dimension by mounting the driving circuit board on the rear surface of the lamp panel, perpendicular to the light source mounting plane. This dimensional arrangement allows both components to coexist without interference, providing safety during cleaning while avoiding the need for complex lateral mounting structures
3Object-affected harmful factors
If separate mounting structures are used for the driving circuit board and light source, then safety is improved, but the component count and production costs increase
Solution Approach 1:
The patent merges the mounting function for both the light source and the driving circuit board into the lamp panel structure itself. The lamp panel serves as the common mounting substrate for both components, eliminating the need for separate mounting brackets or additional structural elements. This integration reduces the component count while maintaining the safety benefits of spatial separation
Data Source
AI summary
A fan lamp includes a driving mechanism, a lamp panel, a driving circuit board, and light sources. The driving mechanism is used for driving the fan lamp to rotate; the lamp panel is connected to the driving mechanism; the driving circuit board is mounted on the side of the lamp panel facing the driving mechanism; the light sources are used for illumination and are mounted on the side of the lamp panel facing away from the driving mechanism; and the driving circuit board is used for driving the light sources and the driving mechanisms to be turned on/off.