Motor Position Sensor Fixing Frame Design
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Solution Overview
Problem
Conventional position sensing devices for motors have complex structures and inadequate connections to electronic components like power leads and PCB boards, leading to instability and inefficiency.
Innovation Solution
A position sensing device with a simple structure featuring multiple fixing portions, including hooks, buckling holes, and a hollow flange, which securely connects to a stator, power lead, and PCB board, utilizing Hall components for accurate position detection and sealing, ensuring firm fixation and improved assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sensing devices are used, then position detection function is achieved, but structure becomes complex and connection to electronic components becomes inadequate
Solution Approach 1:
The patent merges the fixing frame, PCB board, Hall components, and power lead connections into a single integrated assembly. The fixing frame serves as a common mounting structure that simultaneously secures the PCB board, Hall components, and power leads, eliminating the need for separate fixation mechanisms for each component and thereby simplifying the overall structure while improving connection stability.
Solution Approach 2:
The fixing frame is designed as a multi-functional component that performs multiple functions: it provides mechanical support for the PCB board, mounts the Hall components, secures the power leads, and maintains structural integrity. This universal structure replaces multiple separate fixation devices, reducing complexity while enhancing reliability of connections.
2Reliability
If multiple separate fixation methods are used for different components, then connection stability improves, but device complexity increases
Solution Approach 1:
The patent combines multiple fixation functions into a single fixing frame structure. The same fixing frame that mounts the PCB board also provides mounting points for Hall components and secures power leads through integrated features, thereby achieving firm fixation for all components without requiring separate fixation mechanisms.
Solution Approach 2:
The fixing frame is designed as a universal mounting structure that can simultaneously secure different types of components (PCB board, Hall components, power leads) using its various integrated features, eliminating the need for multiple specialized fixation devices and simplifying the overall structure.
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 provides a robust and efficient connection system that enhances the reliability and accuracy of position sensing, protects components from damage, and improves sealing and installation processes, while allowing for precise and universal Hall component placement.
Implementation Method 1
multiple Hall components, and a PCB board. The position sensing device is connected to the stator via the first fixing portion whereby detecting a position of the rotor
Data Source
AI summary
A position sensing device for a motor, the motor has a stator having a coil winding, and a rotor, and the position sensing device including a fixing frame, including a first fixing portion, a second fixing portion, a third fixing portion, and a fourth fixing portion, multiple Hall components, and a PCB board. The position sensing device is connected to the stator via the first fixing portion whereby detecting a position of the rotor, the second fixing portion operates to fix a power lead connected to the coil winding of the stator, the PCB board is disposed on the fixing frame via the third fixing portion, and the Hall component is disposed on the fixing frame via the fourth fixing portion and connected to the PCB board. The invention features simple structure and is capable of being firmly connected and fixed to other electronic components such as a power lead, a PCB board and so on.