Vehicle Air Vent Knob With Rubber Buffer To Reduce Impact Noise
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Solution Overview
Problem
Existing air vent knobs for vehicles generate impact and noise during operation, affecting user experience and requiring separate parts to mitigate these issues, which complicates the assembly process.
Innovation Solution
An air vent knob design featuring an air vent wing with a front stopper and rear stopper, where a rubber is inserted into the knob assembly, allowing the front stopper to contact the rubber's slide groove first, and the rear stopper to contact the air vent wing's fitting groove, reducing impact and noise through controlled movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a protrusion on the knob runs over the protrusion on the air vent wing to indicate complete blockage, then the user can recognize the block position, but impact sound and operation load are generated
Solution Approach 1:
A rubber buffer is introduced as an intermediary element between the knob protrusion and the air vent wing protrusion. The rubber absorbs the impact when the protrusions meet, eliminating impact sound while maintaining the tactile feedback that indicates complete blockage position to the user.
Solution Approach 2:
The rubber buffer is pre-installed on the air vent wing protrusion to provide cushioning before the impact occurs. This beforehand cushioning prevents the generation of impact sound and reduces operation load during knob adjustment, while still allowing the user to feel the blockage position.
2Object-generated harmful factors
If separate parts are used to prevent impact sound during knob operation, then impact and noise are reduced, but assembly process complexity increases
Solution Approach 1:
The rubber buffer is integrated with the air vent wing assembly, merging the noise-reducing function into an existing component rather than requiring a separate part. This simplifies the assembly process while maintaining the benefit of reduced impact sound during knob operation.
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
This design enhances the operation feeling by eliminating impact and noise during air vent wing direction changes and simplifies assembly by eliminating the need for separate noise-reducing parts, thereby improving work efficiency.
Implementation Method 1
a rubber (30) is assembled thereinto... allowing the front stopper (11) to contact the wall of the front slide groove (31) of the rubber (30) in advance
Data Source
AI summary
An air vent knob assembly includes an air vent wing coupled to an assembly hole of a knob. A front stopper is formed on the front surface and a knob fitting groove is formed on the rear surface of the air vent wing. An assembly groove is formed inside the assembly hole of the knob and a piece of rubber is assembled into the assembly groove. A front slide groove is formed on the piece of rubber wherein the front stopper of the air vent wing is fitted and moved in the front slide groove. A rear stopper is formed on both ends of the rear portion of the knob. Wherein the front stopper contacts ends of the front slide groove and the rear stopper contacts sides of the knob fitting groove upon full movement of the knob relative to the air vent wing in both directions.