Vehicle Window Regulator Motor Layout for Compact Door Cavities
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Solution Overview
Problem
Existing window regulators for vehicles have a large profile, which is a challenge in the limited space available within vehicle door cavities.
Innovation Solution
A window regulator design featuring a guide rail, a cursor slidably mounted to the guide rail, and a motor mounted to a flange portion adjacent to the side of the guide rail, allowing for efficient sliding motion and compact installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the motor is mounted at the bottom end of the guide rail, then the structure is simple, but the profile becomes large and cannot fit in limited door cavity space
Solution Approach 1:
The motor is relocated from a bottom-mounted position to a side-mounted position on the guide rail. This dimensional repositioning allows the motor to be mounted adjacent to the side of the guide rail between the bottom and top ends, significantly reducing the overall profile size of the window regulator assembly while accommodating the motor within the limited door cavity space
Solution Approach 2:
The mounting structure is divided into separate functional portions: a flange portion with a rail mounting portion that attaches to the guide rail, and a motor mounting portion that extends from the flange. This segmentation allows independent optimization of each component's position and function, enabling the motor to be positioned laterally adjacent to the guide rail rather than at the bottom end
2Volume of moving object
If the motor is mounted adjacent to the side of the guide rail, then the profile is smaller, but the mounting structure becomes more complex
Solution Approach 1:
The flange portion and motor mounting portion are combined into a single integrated component. The flange portion includes both the rail mounting portion for attaching to the guide rail and the motor mounting portion for securing the motor, eliminating the need for separate mounting brackets or additional fastening structures. This merging reduces the overall number of parts while achieving the compact side-mounted configuration
Data Source
AI summary
A window regulator for raising and lowering a window of a vehicle, including: a guide rail; a cursor slidably mounted to the guide rail; a flange portion mounted to a bottom end of the guide rail, wherein the flange portion has a rail mounting portion and an arm portion extending from the rail mounting portion and a mounting portion extending from the arm portion; and a motor operably coupled to the cursor such that operation of the motor will cause the cursor to slide along the guide rail, the motor being mounted to the mounting portion, wherein the motor when mounted to the mounting portion is located adjacent to a side of the guide rail located between the bottom end of the guide rail and a top end of the guide rail.