Vehicle Headlamp Fan Mount With Pivot-Lock Precise Positioning
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Solution Overview
Problem
Conventional methods for securing a fan in a vehicle headlamp require significant effort due to the use of screw connections or clamping with additional parts, leading to inefficiencies in positioning.
Innovation Solution
A securing device with a protrusion and fastening elements allows the fan to be pivotally mounted and secured in a precise end position using a guide section, abutment portions, and latching elements, ensuring accurate positioning relative to the light module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connections or clamping with additional parts are used to secure the fan, then the fan can be firmly fixed in position, but the assembly effort and complexity increase significantly
Solution Approach 1:
The securing device integrates multiple functions (positioning, centering, and locking) into a single integrated mechanism. The protrusion with guiding section and abutment portion combines centering and positioning functions, while the latching element integrates the locking function, eliminating the need for separate screw connections or clamping parts.
Solution Approach 2:
The securing device enables self-centering and self-locking through its geometric design. The guiding section automatically centers the fan during insertion, and the latching element automatically engages with the counter latching element to lock the fan in position without requiring additional fastening operations.
2Reliability
If conventional securing methods are used, then the fan can be held in position, but the positioning precision and alignment accuracy deteriorate
Solution Approach 1:
The protrusion features a guiding section with specific geometric properties (orthogonal extension relative to the axis) that provides localized centering action. The abutment portion is positioned at a specific location to provide precise rotational stopping point, ensuring accurate angular positioning of the fan relative to the light module.
3Reliability
If the fan is securely fixed in position, then the heat dissipation function is ensured, but the assembly time and operational complexity increase
Solution Approach 1:
The protrusion and guiding section are pre-configured to automatically center and position the fan during the insertion process itself. The latching element is pre-positioned to automatically engage with the counter latching element when the fan reaches the correct position, eliminating the need for separate securing operations after assembly.
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 solution provides a reliable locking and centering system for the fan, reducing assembly effort and ensuring precise alignment with the light module, enhancing the overall efficiency of the lighting device.
Implementation Method 1
a fan configured to dissipate heat produced by the light module
Data Source
AI summary
A lighting device (10) for a vehicle headlamp, comprising: —a light module (50), —a fan (100) configured to dissipate heat produced by the light module (50), —a support frame (70) configured to hold the light module (50), wherein the support frame (70) comprises a securing device (200) which is disposed on the support frame (70), wherein the securing device (200) is configured to secure the fan (100) in an end position (P2) on the securing device (200), wherein the securing device (200) comprises a protrusion (210) extending along an axis (Z) and a first fastening-element (220), wherein the fan (100) comprises an engaging-opening (110), and a second fastening-element (120), wherein the securing device (200) is arranged in a way, that allows the fan (100) to be brought into an intermediate position (P1) by inserting the engaging-opening (110) onto the protrusion (210), such that the fan (100) is mounted pivotable around the axis (Z) on the securing device (200), wherein the securing device (200) is arranged in a way, that allows the fan (100) to be brought into the end position (P2) by rotating the fan (100) starting from the intermediate position (PI) around the axis (Z), such that the second fastening-element (120) engages with the first fastening-element (220) to secure the fan (100) in the end position (P2).