Linear Drive Circuit Board Integration to Reduce Assembly Complexity
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Solution Overview
Problem
Existing linear drives have complex assembly processes due to separate circuit boards and wiring within a restricted motor housing, leading to increased susceptibility to faults and higher assembly costs.
Innovation Solution
The interference suppression circuit board is integrated between the transmission and motor housings, allowing for easier assembly and reduced fault susceptibility by combining multiple components onto a single board, with components like chokes and capacitors arranged outside the motor housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate circuit boards are installed inside the motor housing, then interference suppression and electrical functions are achieved, but assembly complexity increases and fault susceptibility rises
Solution Approach 1:
The patent combines multiple separate circuit boards (interference suppression circuit board, brush carrier circuit board, limit switch circuit board, Hall sensor circuit board) into a single integrated circuit board assembly. This integration reduces the number of components to be manually installed and wired, thereby decreasing assembly complexity while maintaining all necessary electrical functions and interference suppression capabilities.
2Volume of moving object
If circuit boards are arranged inside the motor housing, then compact design is achieved, but assembly difficulty increases due to restricted space
Solution Approach 1:
The patent transitions the circuit board arrangement from a three-dimensional internal motor housing configuration to a two-dimensional planar configuration on a single integrated circuit board. This dimensional change allows all electrical components to be arranged on a flat surface that can be easily accessed and assembled from the outside, eliminating the need to work within the constrained internal space of the motor housing.
3Adaptability or versatility
If multiple separate circuit boards are used, then functional separation is achieved, but wiring complexity and assembly costs increase
Solution Approach 1:
The patent merges multiple functionally separate circuit boards into a single integrated circuit board that incorporates all necessary electrical components and circuit traces. The integrated board maintains functional separation through dedicated circuit regions for interference suppression, brush carrier control, limit switch evaluation, and Hall sensor signal processing, while eliminating the need for extensive inter-board wiring.
Data Source
AI summary
To simplify assembly and to reduce the susceptibility to faults of a linear drive comprising a transmission housing, an interference-suppressed electric motor which is connected thereto and is accommodated in a motor housing and which by way of a rotor accommodated in the motor housing drives a shaft which is mounted on a rear shaft end in a rear shaft bearing and is mounted on a front shaft end, a commutator for the transmission of current to the rotor, electrical and/or electronic components for interference suppression of the electric motor, it is proposed that the rear shaft bearing is mounted in the motor housing, the front shaft bearing is mounted in the transmission housing and the electrical and/or electronic components required for interference suppression of the electric motor are arranged on an interference suppression circuit board arranged between the front shaft bearing and the commutator.