Vehicle Air Vent Control Tab Integrating Direction and Shut-off
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Solution Overview
Problem
Conventional vehicle air vents require separate mechanical control mechanisms for air flow direction and shut-off, leading to a complex and cumbersome system.
Innovation Solution
A multi-function air vent controller with a control tab mechanically coupled to air control vanes and a linkage assembly, allowing for simultaneous adjustment of air flow direction and shut-off via a single mechanism, utilizing a cam and link system to control both horizontal and vertical vanes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate mechanical control mechanisms are used for air flow direction and shut-off, then each function can be controlled independently, but the device complexity increases and the system becomes cumbersome
Solution Approach 1:
The patent combines two separate control mechanisms (air flow direction control and shut-off control) into a single integrated control tab. The control tab is mechanically linked to both the air control vanes and the shut-off door through a linkage assembly, allowing one component to perform multiple functions that previously required separate mechanisms.
Solution Approach 2:
The control tab is designed as a universal control component that can perform multiple functions: it controls air flow direction by adjusting the orientation of air control vanes, and it controls air flow shut-off by actuating the shut-off door. This multi-functional design eliminates the need for separate control mechanisms for each function.
2Adaptability or versatility
If multiple separate control mechanisms are used, then each control function is independent, but the overall system size increases and space is consumed
Solution Approach 1:
The patent merges multiple control functions into a single compact control tab assembly. By integrating the direction control and shut-off control into one mechanism, the overall volume required for the controller is reduced compared to having separate mechanisms for each function.
Solution Approach 2:
The linkage assembly is designed with nested components where the cam mechanism and linkages are integrated within the control tab structure. The shut-off door linkage is nested within the same housing as the air vane control linkage, allowing multiple control functions to coexist in a compact space.
Data Source
AI summary
A vehicle air vent is provided that includes a plurality of air control vanes, the orientation of which determines the direction of air flow exiting the air vent; a shut-off door that allows air to flow through the air vent when it is in a first position and blocks air flow through the air vent when it is in a second position; a control tab mechanically coupled to the plurality of air control vanes; and a linkage assembly mechanically coupling the control tab to the shut-off door. Adjustment of the control tab within a first range of positions controls the orientation of the air control vanes while maintaining the shut-off door in an open position. Adjustment of the control tab within a second range of positions, however, moves the shut-off door between the first and second positions, thereby controlling air flow through the air vent.