Automobile Headlamp Light Shield with Guided Reciprocating Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light shield mechanisms for automobile headlamps suffer from structural abrasion and control failures due to imprecise placement of limiting movable blocks, preventing effective switching between high and low beam light patterns.
Innovation Solution
A light shield system featuring a clamping mechanism with a light-outlet groove, a reciprocating shield, and a motor that drives the shield to block or unblock the groove, utilizing a limiting mechanism with a limiting column and long strip-shaped limiting holes for precise control, and optionally incorporating a spring for energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If limiting movable blocks are used to clamp the shield, then the shield can be fixed in position, but structural abrasion occurs at the edge of the limiting movable blocks or the light shield, and control failure may occur due to imprecise placement
Solution Approach 1:
The patent extracts the harmful clamping function from the limiting movable blocks and relocates it to dedicated limiting columns with limiting holes. This separation allows the limiting blocks to focus solely on positioning without causing abrasion, as the limiting columns bear the constraint load through precise hole-column配合
Solution Approach 2:
The patent introduces limiting columns as intermediary elements between the limiting movable blocks and the shield. The limiting columns with precisely positioned limiting holes serve as mediators that guide the shield's movement trajectory, preventing direct abrasive contact while ensuring accurate positioning
2Measurement precision
If limiting movable blocks are used to clamp the shield, then the shield can be fixed in position, but control failure may occur due to imprecise placement of the movable blocks
Solution Approach 1:
The patent replaces the purely mechanical clamping system with a guided mechanical system. The limiting columns with precisely engineered limiting holes substitute for imprecise movable block placement, using the hole-column配合 mechanism to automatically guide and constrain the shield along the correct trajectory, eliminating placement errors
Solution Approach 2:
The patent changes the geometric parameters of the limiting mechanism, specifically designing limiting holes with precise dimensions and orientations. The hole shapes and positions are carefully parameterized to control the shield's movement path, transforming the system from dependent on block placement accuracy to dependent on precise hole geometry
Data Source
AI summary
A light shield comprising a clamping mechanism, a shield and a motor, wherein a light-outlet groove is formed in the clamping mechanism, the shield is arranged on the clamping mechanism in a reciprocating mode through a limiting mechanism, and the motor is used for driving the shield to move back and forth along the clamping mechanism, thereby enabling the shield to conveniently block or unblock the light-outlet groove; according to the present invention, the variation of the light amount and the light pattern of the automobile headlamp can be achieved through blocking or unblocking the light-outlet groove by the shield, and through changing the reflected light pass region of the reflector.