Motorized Sliding Window Rack Geometry for Gear Alignment
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Solution Overview
Problem
Traditional windows and doors lack automation technology, leading to manual operation for ventilation, energy management, and security, which can result in inefficiencies and mechanical stress due to slanted rack teeth causing gear misalignment and premature wear.
Innovation Solution
An automated sliding panel mechanism using a motor, rack, and gear system where the rack teeth are generally perpendicular to the plane, reducing gear displacement and strain, with options for spur, helical, or worm gears, and a solar-powered battery system for operation, controlled by a smartphone app for smart home integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If slanted rack teeth are used in traditional manual window systems, then the structure is simple and easy to manufacture, but the gear alignment becomes misaligned causing increased motor strain and potential jamming
Solution Approach 1:
The rack teeth are changed from slanted to perpendicular orientation relative to the rack plane. This parameter change in tooth geometry ensures proper gear alignment, reduces motor strain, and prevents jamming while maintaining manufacturing simplicity.
2Ease of operation
If automated motorized systems are added to traditional windows, then operation convenience is improved, but device complexity and potential for mechanical failure increase
Solution Approach 1:
The system incorporates feedback mechanisms including limit switches that detect when the window reaches fully open or closed positions, automatically stopping the motor to prevent over-travel and mechanical damage. This feedback control reduces operational complexity by automating position management.
Solution Approach 2:
The design includes mechanical stops and limit switches that prevent the gear and rack from exceeding their operational range. This beforehand protection prevents jamming and mechanical failure before they can occur, reducing overall system complexity by eliminating the need for complex emergency release mechanisms.
3Reliability
If more teeth are added to the gear and rack, then engagement reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The rack teeth are designed with perpendicular orientation and standardized spacing (at least 6 teeth per inch). This parameter standardization maintains engagement reliability while simplifying manufacturing requirements compared to custom slanted tooth configurations.
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 enables efficient, automated window operation with reduced mechanical stress and energy consumption, enhancing safety and energy management through smart control and integration with HVAC systems and sensors for ventilation and security.
Implementation Method 1
a motor configured to move a sliding window between a closed position and an open position
Implementation Method 2
the batteries may be charged by a solar panel on the automated sliding panel mechanism
Data Source
AI summary
An automated sliding panel mechanism is disclosed. An automated sliding panel mechanism including a motor is configured to move a sliding window between a closed position and an open position, and includes a power source providing power to the motor, a rack consisting of rack teeth wherein a portion of the surface of the rack teeth are generally perpendicular to a plane, and a gear rotated by the motor and consisting of gear teeth, wherein the gear teeth are shaped to mesh with the rack teeth.