Motor Circuit Board Assembly With Waterproof Coil Connections
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Solution Overview
Problem
Conventional motor assembly is complex and prone to wire binding errors, with the wire binding plate and coil susceptible to short circuits, and requires a moisture-blocking structure for outdoor use.
Innovation Solution
A motor design that replaces the conventional wire binding plate with a circuit board, incorporating a waterproof element in the insertion hole for the electrical connector and multiple insulation plates for protection, along with a clip for heat dissipation, simplifying assembly and providing waterproof and insulation functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wire binding plate is used to connect the coil to the circuit board, then the motor can be assembled, but the assembly process becomes complex and cumbersome with increased risk of wire binding errors
Solution Approach 1:
The patent merges the wire binding plate and circuit board into a single integrated circuit board structure. The circuit board directly connects to the coil terminals through inserted terminals, eliminating the separate wire binding plate and reducing assembly steps while improving connection reliability.
Solution Approach 2:
The patent extracts and eliminates the wire binding plate from the traditional motor structure, replacing it with a simplified circuit board design that performs both the original wire binding function and circuit board functions in one component.
2Reliability
If a wire binding plate is used for connecting the coil, then electrical connection can be achieved, but short circuit problems occur during installation
Solution Approach 1:
The circuit board integrates the connection function into a single rigid structure with pre-positioned terminals, eliminating the separate wire binding plate that caused short circuit risks during assembly. The integrated design ensures proper spacing and insulation between connections.
3Reliability
If the stator is electrically connected to the wire binding plate and circuit board, then electrical functionality is achieved, but moisture blocking structure is required for outdoor applications
Solution Approach 1:
The integrated circuit board structure reduces the number of separate electrical connection components, creating fewer potential entry points for moisture. The unified design simplifies the overall structure and reduces the complexity of moisture blocking requirements compared to having separate wire binding plate and circuit board assemblies.
4Reliability
If multiple insulation plates are added for protection, then insulation and moisture protection are improved, but the assembly process becomes more complex
Solution Approach 1:
The patent integrates insulation functions directly into the circuit board structure and pillow design, eliminating the need for separate insulation plates. The circuit board itself provides electrical insulation, and the pillow structure incorporates moisture blocking features, reducing assembly complexity while maintaining protection.
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
Simplifies the motor assembly process, reduces the risk of short circuits, and ensures moisture protection, while maintaining the functionality of the wire binding plate and providing effective heat dissipation for electronic components.
Implementation Method 1
a waterproof element is disposed in the insertion hole of the plate of the pillow of the motor. The waterproof element is configured for a first electrical connector to penetrate therethrough, and the waterproof element surrounds the first electrical connector to achieve waterproof and insulation functions
Implementation Method 2
a clip is utilized to dissipate heat generated from an electronic component disposed on the circuit board
Data Source
AI summary
The present disclosure provides a motor including a stator, a rotor and a first circuit board. The stator includes a winding assembly including a plurality of coils. A conductive element is extended out from the winding assembly and is electrically connected to a first electrical connector. The first electrical connector penetrates through a pillow of the stator and is electrically connected to the first circuit board. The motor further includes a second circuit board electrically connected to the first circuit board, and a first insulation plate, a second insulation plate and a third insulation plate for fixing and protecting the circuit boards. The motor also includes a clip for fixing and heat dissipating an electronic component disposed on the second circuit board.