LED Heat Pipe Radiator with Curved 3D Path
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Solution Overview
Problem
The existing heat radiating apparatuses for UV light illuminating devices using LEDs face challenges in achieving uniform cooling across the entire base plate while maintaining a compact design, leading to reduced cooling capacity and interference with the arrangement of light emitting devices in a line shape.
Innovation Solution
A heat radiating apparatus with a heat pipe and heat radiating fins is designed to be in close contact with the LEDs, featuring a support member, a heat pipe with a line part and a connecting part that is thermally joined to the support member, and heat radiating fins that face the opposite surface, allowing for uniform cooling and alignment of light emitting devices in a line shape without protrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the heat pipe is bent in the shape of U to transfer heat in a direction opposite to LED emission, then the device size is reduced perpendicular to emission direction, but the curved part protrudes outside the base plate and prevents close placement of light illuminating devices
Solution Approach 1:
The heat pipe transitions from a planar U-shape to a three-dimensional configuration with a curved portion extending in the thickness direction of the base plate. This vertical dimensionality allows the heat pipe to transfer heat effectively while containing the curved portion within the device boundaries, enabling close placement of light illuminating devices without protrusion interference
2Volume of moving object
If the heat radiating apparatus is designed for compact size, then device dimensions are reduced, but uniform cooling across the entire base plate becomes difficult to achieve
Solution Approach 1:
The heat pipe is strategically positioned with its curved portion located at a specific region of the base plate where heat generation is most intense. This localized heat transfer approach efficiently cools critical areas while maintaining compact device dimensions, achieving adequate thermal management without requiring full-surface coverage that would increase device size
3Adaptability or versatility
If the curved part of the heat pipe is positioned within the base plate boundaries, then light illuminating devices can be closely arranged, but the heat transfer path length increases
Solution Approach 1:
The heat pipe employs a curved portion with an optimized radius of curvature that allows it to bend within the base plate boundaries while minimizing the overall heat transfer path length. This curved geometry efficiently redirects heat flow from the LED region to the heat radiating fins without requiring excessive path length, balancing compact arrangement capability with effective heat transfer
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 configuration ensures uniform cooling of LEDs, reduces temperature differences, and allows for efficient connection and arrangement of light emitting devices in a line shape, enhancing light emitting efficiency and extending device lifespan.
Implementation Method 1
a heat pipe which is supported by the support member and is thermally joined with the support member to transfer the heat from the heat source
Implementation Method 2
thermally joined with the support member to transfer the heat from the heat source
Implementation Method 3
a plurality of heat radiating fins which is placed in a space that faces a second principal surface opposite to the first principal surface and is thermally joined with the heat pipe to radiate the heat transferred by the heat pipe
Implementation Method 4
radiate the heat transferred by the heat pipe
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~2
AI summary
[Problem] The present disclosure is directed to providing a heat radiating apparatus that fully cools the entire support member using heat pipe and allows for connection and arrangement in a line shape. [Problem-solving means] A heat radiating apparatus (200) for radiating heat of a heat source in air includes a support member (201) which is placed in close contact with the heat source on a first principal surface (201a) side, a heat pipe (203) which is thermally joined with the support member (201) to transfer the heat from the heat source, and a plurality of heat radiating fins (205) which is placed in a space that faces a second principal surface (201b) to radiate the heat transferred by the heat pipe (203), wherein the heat pipe (203) includes a first line part (203a) which is thermally joined with the support member (201), a second line part (203b) which is thermally joined with the plurality of heat radiating fins (205), and a connecting part (203c) which connects the first line part (203a) to the second line part (203b), a length of the heat pipe (203) in a direction (X) in which the first line part (203a) extends is slightly shorter than or equal to a length of the support member (201), the connecting part (203) has a curved part (203ca) that is thermally joined with the support member (201) in the proximity of one end part of the first line part (203a), and when a plurality of heat radiating apparatuses (200) are arranged in the direction in which the first line part (203a) extends, the heat radiating apparatuses (200) can be connected such that the first principal surfaces (201a) are successive.