Retractable Fan Lamp Layout With Integrated Driver Packaging

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Solution Overview

Problem

Existing fan lamps occupy a large space due to their bulky design, making transportation inconvenient.

Innovation Solution

The fan lamp integrates the driving motor of the blade assembly and the light source assembly with a single driver, reducing the number of components and parts, which includes a ceiling assembly, a hanger rod, and a ceiling fan assembly, which reduces the overall size and enhances the compactness and ease of transportation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the fan lamp uses separate drivers for the blade assembly and light source assembly, then the control functionality is independent and reliable, but the number of components increases and the overall size becomes large

Engineering Contradiction:
Improvenumber of componentsVSAvoidcontrol functionality
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent combines the control functions of the blade assembly and light source assembly into a single integrated driver unit. This driver includes a control module that can independently control both the motor driver (for blade rotation) and the light source driver (for LED lighting), thereby reducing the total number of components while maintaining independent control functionality through software/module architecture.

Inventive Principle:
Principle #5Merging (Combining)

2Volume of moving object

If the fan lamp adopts a traditional separate design for fan and lighting components, then each component can be optimized independently, but the overall size occupied is large and transportation is inconvenient

Engineering Contradiction:
Improveoverall sizeVSAvoidcomponent optimization
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The patent implements a nested structure where the light source assembly is positioned within the space occupied by the blade assembly's mounting structure. The lighting components are integrated into the hollow interior space of the fan housing, allowing both systems to occupy overlapping spatial volumes and thereby reducing the overall external dimensions of the fan lamp.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Manufacturing precision

If the fan lamp uses multiple separate drivers for different assemblies, then the control precision for each assembly is high, but the device complexity and space requirement increase

Engineering Contradiction:
Improvecontrol precisionVSAvoiddriver configuration
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The integrated driver is designed as a universal control unit that can perform multiple functions: it includes a motor driver for controlling blade rotation speed and direction, a light source driver for controlling LED brightness and timing, and a control module that coordinates both functions. This multi-functional design maintains high control precision for each assembly while simplifying the overall driver configuration into a single integrated unit.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4119836B1Fan lamp
Publication Date: 2026.01.07 SUZHOU OPPLE LIGHTING
  • EP4119836B1 patent drawingFigure 1
  • EP4119836B1 patent drawingFigure 2
  • EP4119836B1 patent drawingFigure 3

AI summary

A fan lamp, belonging to the technical field of lighting lamps. The fan lamp comprises a ceiling assembly (100), a hanging rod (200), a blade assembly (300), a light source assembly (400) and a driver (500); the blade assembly (300) comprises a base plate (310), retractable blades (320) and a driving motor (330); the retractable blades (320) are rotatably mounted on the base plate (310); the driving motor (330) is connected to the base plate (310); one end of the hanging rod (200) is connected to the ceiling assembly (100), and the other end of the hanging rod (200) is connected to a first end of the driving motor (330); the light source assembly (400) is connected to a second end of the driving motor (330), and the light source assembly (400) is located at the side of the blade assembly (300) away from the ceiling assembly (100); the driver (500) is mounted on the ceiling assembly (100), the blade assembly (300) or the light source assembly (400), and is configured to be electrically connected to both the driving motor (330) and the light source assembly (400).