Quick Mounting Junction Box for Ceiling Fan
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Solution Overview
Problem
Conventional ceiling fan power systems face issues with wire loosening, bending, and breaking due to the use of closed-end wire connectors, leading to malfunctions and a bulky distribution receptacle.
Innovation Solution
A quick mounting junction box with a circuit board, power source connector, motor connector, capacitor connector, switch connector, and housing shell, featuring adjustable wire gripping jaws to secure electric wires and reduce size, while maintaining easy assembly and secure connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If closed-end wire connectors are used to connect wires, then connections are secured, but wire loosening, bending and breaking occur leading to malfunction
Solution Approach 1:
The patent replaces traditional mechanical wire connectors with a circuit board-based electrical connection system. Wires are connected to the circuit board through soldering or other electrical joining methods, eliminating the mechanical connector components that cause loosening, bending, and breaking. This substitution of mechanical connection with electrical connection on a rigid substrate resolves the harmful effects while maintaining connection reliability.
2Shape
If a distribution receptacle is used to mount capacitors and connectors, then outer appearance is enhanced, but the receptacle becomes bulky with large number of elements and wires
Solution Approach 1:
The patent merges multiple separate components (capacitor, connectors, wiring harness) into a single integrated circuit board assembly. The circuit board serves as both the electrical connection substrate and the mounting structure for all electrical components, eliminating the need for a separate bulky distribution receptacle. This consolidation maintains functional requirements while dramatically reducing overall volume and simplifying the housing space requirements.
Solution Approach 2:
The circuit board performs multiple functions simultaneously: it provides electrical connections for power and control wires, mounts the start capacitor and other components, serves as a structural support element, and organizes the electrical architecture. This multi-functionality replaces the traditional distribution receptacle's roles while enabling a more compact design.
3Adaptability or versatility
If multiple elements and wires are received in distribution receptacle, then complete electrical system is achieved, but assembly complexity and malfunction risk increase
Solution Approach 1:
The patent segments the electrical system into modular functional blocks on the circuit board: power input section, capacitor mounting section, motor control section, and connector sections. Each section is independently designed and can be separately assembled or replaced. This segmentation reduces assembly complexity compared to managing multiple separate components in a receptacle, while maintaining complete electrical system functionality.
Data Source
AI summary
A quick mounting junction box for connecting a power source and a ceiling fan motor of a ceiling fan includes a circuit board having a mounting portion on which a start capacitor and a positive and reverse switch are disposed, and a power connecting portion and a motor connecting portion which are formed adjacent to a side edge and on which a power source connector and a motor connector are respectively disposed. The start capacitor and the positive and reverse switch are electrically connected with the power source connector and the motor connector through the circuit board. The power source and the ceiling fan motor can be easily assembled and connected through the power source connector and the motor connector.