Vehicle Headlamp Shield Apparatus Noise Reduction
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Solution Overview
Problem
Existing head lamp shield apparatuses generate significant impact sounds during operation due to collisions with stoppers, increasing manufacturing costs and complicating the assembly process while insufficiently reducing noise.
Innovation Solution
A shield apparatus for a vehicle head lamp featuring a block with a through hole and guide slit to rotatably support the shield, limiting its angle of rotation using a detent and extending parts for fixation, simplifying assembly and reducing noise by guiding the shield's rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a stopper is installed to restrict the angle of rotation of the shield, then the angle of rotation is restricted, but the shield collides with the stopper and generates great impact sound
Solution Approach 1:
The patent introduces a guide slit as an intermediary element between the shield and the stopper. The guide slit guides the shield's rotation path, allowing the shield to reach the desired angle restriction without directly colliding with the stopper, thereby reducing impact sound while maintaining angle control
2Object-generated harmful factors
If a separate component is installed to reduce the impact sound, then the impact sound is reduced, but the manufacturing cost rises and the assembling process becomes complicated
Solution Approach 1:
The patent merges the angle restriction function and the impact reduction function into a single integrated block structure. The guide slit is formed directly in the block that also serves to restrict the rotation angle, eliminating the need for separate components and simplifying the assembling process while reducing impact sound
3Object-generated harmful factors
If a separate component is installed to reduce the impact sound, then the impact sound is reduced, but the manufacturing cost rises
Solution Approach 1:
The patent combines multiple functions into the existing block structure, forming the guide slit directly in the block. This eliminates the need for additional separate components, thereby reducing manufacturing cost while achieving impact sound reduction through the guided rotation mechanism
Data Source
AI summary
The present invention provides a shield apparatus of a head lamp for a vehicle. The shield apparatus of the head lamp for a vehicle includes: a case; a cover coupled to the case; a shield supported inside the case and configured to adjust a predetermined light beam pattern generated by a head lamp; a motor configured to drive the shield; a block disposed inside the case and the cover, and configured to rotatably support the shield and limit an angle of rotation of the shield.