Automotive LED Headlight Housing with Integrated Cooling Fan
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Solution Overview
Problem
Traditional automotive LED headlights have a large volume, limited heat dissipation efficiency, and external cooling fan placement that restricts space and aesthetics, making them unsuitable for vehicles with limited space and complicating mounting.
Innovation Solution
The automotive LED headlight structure incorporates a housing with a heat sink and rotatable cooling fan inside, a heat dissipation slot, and a heat sink in contact with the substrate, allowing for efficient heat conduction and improved airflow for cooling, reducing the overall volume and enhancing mounting flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the cooling fan is placed externally in traditional automotive LED headlights, then the heat dissipation function is achieved, but the volume increases and space is restricted
Solution Approach 1:
The cooling fan is merged with the housing to form an integrated structure. The fan is positioned inside the housing cavity, combining the cooling function with the structural housing, thereby eliminating the need for separate external cooling components and reducing overall volume.
Solution Approach 2:
The cooling fan is nested within the housing cavity, utilizing the internal space of the housing for the cooling function. This nesting approach allows the cooling fan to be accommodated within the existing structural envelope, avoiding volume increase.
2Ease of operation
If the driving system is provided externally in traditional automotive LED headlights, then the control function is achieved, but the volume increases and wiring becomes complex
Solution Approach 1:
The driving system is merged with the housing structure, integrating the control electronics into the housing. This integration eliminates the need for separate external driving system components and reduces wiring complexity.
Solution Approach 2:
The housing serves multiple functions: it provides structural support, contains the cooling fan, and houses the driving system. This multi-functionality reduces the need for separate components and minimizes overall volume.
3Device complexity
If the cooling fan acts only on the cooling fins, then the cooling structure is simple, but the heat dissipation efficiency is limited
Solution Approach 1:
The cooling fan is positioned to create localized high-velocity airflow channels that directly target heat-generating components such as the substrate and heat sink. This localized cooling approach improves heat dissipation efficiency without requiring complex overall cooling structures.
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 achieves high heat dissipation efficiency, compactness, and improved mounting space utilization, accommodating various vehicle models with enhanced operational safety and aesthetics.
Implementation Method 1
a heat sink and rotatable cooling fan for conducting heat, where... the heat sink is provided in the heat dissipation slot and in contact with the substrate
Implementation Method 2
the cooling fan blows air to the cooling fins so as to dissipate the heat
Data Source
AI summary
An automotive light-emitting diode (LED) headlight structure includes a housing, where one end of the housing is provided with a straight section corresponding to lamp beads on a substrate; a middle part of the housing is provided with a heat dissipation slot; a heat sink for heat conduction is provided in the heat dissipation slot; one end of the housing connected to an adapter has a diameter greater than diameters at the middle part and the other end of the housing, and is provided therein with a cooling fan; and the adapter is provided with a ventilation hole for allowing the cooling air generated by the cooling fan to dissipate heat from all components in sequence. The automotive LED headlight structure greatly improves the utilization and heat dissipation efficiency of the cooling air, and appropriately reduces the volume of the heat sink and the cooling fan.