Vehicle Head Lamp Cooling via Single Blower and Rectifying Unit
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Solution Overview
Problem
Existing vehicle head lamps experience uneven heat distribution due to the size and configuration of blower systems, which can lead to inefficiencies in cooling and increased size requirements.
Innovation Solution
A vehicle head lamp design featuring a blower that circulates air through multiple lamps, with a rectifying unit to guide air flow and a breathing hole for outside air intake, ensuring consistent air circulation and improved cooling while maintaining a compact size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a blower is provided for each lamp to cool the heat sink, then cooling effectiveness is improved, but the device size and complexity increase
Solution Approach 1:
Multiple blowers are merged into a single blower unit that serves all lamps. The blower housing contains multiple impellers that can be rotated independently or together, allowing one blower to perform the cooling function that previously required multiple separate blowers, thus reducing device complexity while maintaining cooling effectiveness
Solution Approach 2:
The single blower is designed with multi-functionality to cool multiple heat sinks simultaneously. By incorporating multiple independently rotatable impellers, the blower can selectively cool different lamps or operate all impellers together for comprehensive cooling, making the system more versatile and less complex
2Temperature
If air is blown through heat sinks to cool them, then heat dissipation is improved, but uneven heat distribution occurs in the lamp housing
Solution Approach 1:
The system incorporates temperature detection means that monitor the temperature of each heat sink and provide feedback to the control unit. Based on this feedback, the control unit adjusts the rotation of individual impellers to optimize cooling distribution, ensuring uniform heat dissipation across all lamps while preventing overheating in specific areas
Solution Approach 2:
The blower system transitions from static to dynamic control by allowing independent rotation of multiple impellers. The control unit can adjust the speed and rotation of each impeller based on real-time temperature conditions, creating a dynamic cooling system that adapts to varying heat generation patterns and maintains uniform heat distribution
3Temperature
If multiple blowers are provided for multiple lamps, then cooling coverage is improved, but the overall system size increases
Solution Approach 1:
Multiple blowers are combined into a single integrated blower unit with a common housing and multiple impellers. This merging reduces the overall volume required for the cooling system while maintaining the ability to cool multiple heat sinks, as the shared housing and coordinated impeller rotation provide comprehensive cooling coverage without the space required for multiple separate blower assemblies
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 effectively suppresses uneven heat distribution and miniaturizes the head lamp system by promoting air circulation and enhancing cooling efficiency within the lamp housing.
Implementation Method 1
a blower (50) disposed in the lamp room (LR)
Implementation Method 2
each including a light source that emits light irradiated to a forward and a heat sink that radiates heat generated from the light source
Implementation Method 3
air blown to the first lamp (1a) by the blower (50) flows to the second lamp (1b) via the first lamp (1a)
Data Source
AI summary
Disclosed is a vehicle head lamp includes: a plurality of lamps arranged in parallel with each other and each including a light source that emits light irradiated to a forward and a heat sink that radiates heat generated from the light source; a blower; and a lamp housing configured to accommodate the plurality of lamps and the blower. Each of the plurality of lamps includes a first lamp disposed in a blowing direction where air is blown by the blower, and a second lamp disposed on a flow path of the air flowing through the first lamp. The blower includes an air suction space into which the air flowing through the second lamp is sucked.