Circuit Board Holder for Window Drive Motor Assembly
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Solution Overview
Problem
Existing drive systems for windows and similar applications face challenges in securely arranging and fixing larger circuit boards, which can lead to conductive components touching the housing and causing electrical issues.
Innovation Solution
A circuit board holder with an end plate and a receiving ring is used to securely position the circuit board within the drive housing, featuring guide grooves and elastically resilient segments to prevent twisting and ensure a defined distance between the motor and circuit board, allowing for easy assembly and reliable electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the circuit board is arranged directly in the housing without a dedicated holder, then the device complexity is reduced, but the reliability deteriorates because larger circuit boards may not be adequately secured, allowing conductive components to touch the housing
Solution Approach 1:
A circuit board holder is introduced as an intermediary component between the housing and the circuit board. This holder provides a dedicated mounting structure that securely fixes the circuit board in position, preventing conductive components from touching the housing, while maintaining reasonable device complexity through a simple cylindrical design with end plate and receiving ring
Solution Approach 2:
The circuit board holder is segmented into distinct functional parts: a cylindrical body for mounting, an end plate for securing the board, and a receiving ring with locking lugs for motor attachment. This segmentation allows each part to perform its specific function effectively while keeping the overall structure manageable
2Reliability
If the circuit board is tightly secured to prevent movement, then the reliability improves, but the ease of operation deteriorates because assembly and disassembly become difficult
Solution Approach 1:
The circuit board holder incorporates elastic-resilient segments in the receiving ring that can deform elastically during assembly and disassembly. These segments allow the locking lugs to engage and disengage from the motor shaft easily, providing secure fixation during operation while enabling simple assembly and disassembly when needed
Solution Approach 2:
The holder is designed with pre-positioned guide grooves and locking lugs that automatically guide the circuit board into the correct position during assembly. This preliminary positioning action ensures proper alignment and secure fixation without requiring complex assembly procedures
3Volume of stationary object
If the circuit board is positioned close to the motor to save space, then the volume is reduced, but the reliability deteriorates because conductive components may touch the housing or motor
Solution Approach 1:
The circuit board holder positions the circuit board at a defined distance from the motor along the axial dimension, using the cylindrical structure to create proper spacing. This dimensional arrangement ensures electrical isolation and prevents contact between conductive components and the housing or motor, while still utilizing the housing volume efficiently
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 simple and reliable method for installing the electronic circuit, ensuring secure fixation and defined spacing, which enhances the stability and functionality of the drive system by preventing electrical contact between conductive components and the housing.
Implementation Method 1
The receiving ring is provided with slots which divide the receiving ring into segments, whereby the segments are elastically resilient
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The drive (1) has electric motor (4) and circuit board (6) with electronic circuit are arranged in housing (2). The circuit board is assembled in circuit board holder (8) which is mounted and extended between electric motor and end cap (10). The circuit board holder is provided with retainer ring (13) for coupling the electric motor. The slots (14) are formed on the retainer ring, to resilient fit with the spring segments. The guiding groove and bars are arranged in the circuit board holder. An independent claim is included for a method for assembling drive.