Vehicle Headlight Lock-Release Mechanism for Impact Absorption
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Solution Overview
Problem
Existing shock-absorbing vehicle headlight systems face the challenge of balancing pedestrian protection with maintaining headlight stability during normal driving, as resilient mounting leads to undesirable movements due to vibrations, and increasing rigidity contradicts the intended protection.
Innovation Solution
A shock-absorbing vehicle headlight system featuring at least two triggering elements mechanically connected to a vehicle bumper, with a triggering mechanism that includes a blocking element, a spring element, and a force transmission device, allowing the headlight housing to remain fixed during normal driving and absorb shock energy only during collisions by transitioning to an adjustment position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the headlight housing is mounted with resilient elements to absorb impact energy, then pedestrian protection is improved, but the headlight housing experiences unwanted movement during normal driving due to vibrations
Solution Approach 1:
The headlight housing is designed with a dynamic mounting system that transitions between two states: a locked basic position during normal driving where the housing is firmly secured to the vehicle frame, and an unlocked adjustment position during collision where the housing can move to absorb impact energy. This dynamic state change resolves the contradiction by providing both stability and protection at different times.
Solution Approach 2:
A triggering mechanism with triggering elements is预先 installed to detect collision conditions before the actual impact occurs. When triggered, the mechanism预先 releases the locking of the headlight housing, allowing it to move and absorb impact energy. This preliminary detection and preparation resolves the contradiction by ensuring protection is activated only when needed.
2Stability of the object's composition
If the mounting system is made more rigid to prevent movement during normal driving, then headlight housing stability is improved, but the ability to absorb impact energy during collision is reduced
Solution Approach 1:
The mounting system dynamically changes its rigidity based on operating conditions. During normal driving, the blocking element engages with the engagement portion to create a rigid connection that prevents movement and vibrations. During collision, the triggering mechanism releases the blocking element, allowing the housing to move and absorb impact energy. This dynamic rigidity adjustment resolves the contradiction.
Solution Approach 2:
The blocking element is designed to preliminarily prevent the headlight housing from moving during normal driving by engaging with the engagement portion of the vehicle frame element. This preliminary blocking action counteracts vibrations and maintains stability, while allowing movement when triggered during collision to provide protection.
3Stability of the object's composition
If a blocking element is used to secure the headlight housing in the basic position, then headlight housing stability is improved, but the complexity of the triggering mechanism increases
Solution Approach 1:
The triggering mechanism is designed as a separate, extractable component that can be independently activated by collision forces. The triggering elements are mechanically coupled to the vehicle body and can independently detect collision and release the blocking element without requiring complex integrated control systems. This extraction of the triggering function reduces overall system complexity.
Solution Approach 2:
The triggering mechanism is designed to automatically detect collision conditions and release the blocking element without external intervention. The triggering elements mechanically sense the collision force and automatically actuate the release mechanism, making the system self-regulating and reducing the need for complex control electronics or manual 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
The system effectively maintains headlight stability during normal driving while ensuring pedestrian protection by absorbing shock energy during collisions, ensuring the headlight housing is fixed until a collision is detected, allowing for evasive movement and subsequent return to the basic position.
Implementation Method 1
a first spring element is provided which exerts a first spring force on the blocking element, pressing it into the blocking position
Implementation Method 2
a second spring element is arranged between the vehicle frame element and the vehicle headlight housing, which exerts a second spring force in a direction towards the basic position
Implementation Method 3
the vehicle frame element has at least one guide for receiving and guiding the guide means, wherein the guide means engages with the guide, so that the vehicle headlight housing is guided by displacement of the guide means along the guide
Data Source
Figure 1
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AI summary
Shock-absorbing vehicle headlight system (1) comprising a vehicle frame element (2), a vehicle headlight housing (3), two release elements (6) and a release mechanism (7a, 7b) connected to the vehicle frame element (2), which is configured to release a transition of the vehicle headlight housing (3) between a basic position (GP) and an adjustment position (VP) depending on the positions of the release elements (6), wherein the release mechanism (7a, 7b) comprises a locking element (8a, 8b) which can switch between a locking position (BP) and a release position (FP), wherein in the locking position (BP) the vehicle headlight housing (3) is held in the basic position (GP), wherein in the release position (FP) a transition to the adjustment position (VP) is released, wherein a force transmission device (12) mechanically couples the locking element (8a, 8b) to the release elements (6),wherein the power transmission device (12) comprises a rotary shaft (13a, 13b) and a control element (14), wherein a displacement of each release element (6) can be converted into a rotary movement of the rotary shaft (13a, 13b), wherein a rotary movement of the rotary shaft (13a, 13b) can be converted into a rotary movement of the control element (14), wherein the control element (14) is operatively connected to the locking element (8a, 8b) to push the locking element (8a, 8b) into the release position (FP).