Heat Sink With Step Grooves For Multi-Height Components

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Solution Overview

Problem

Existing heat sink technologies face inefficiencies in heat dissipation for components of different heights, leading to heat loss, increased material costs, and limitations in product slimming due to the use of sub heat sinks.

Innovation Solution

A heat sink design incorporating multiple heat pipes with step differences and strategically formed grooves allows for direct contact with heat-generating components of varying heights, enhancing heat dissipation efficiency while reducing material costs and enabling product slimming.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a sub heat sink is used to lower the heat of heat generating components having different heights, then heat dissipation is achieved, but heat loss occurs and material cost increases

Engineering Contradiction:

Improveheat dissipationVSAvoidheat loss

Core Design Contradiction:

TemperatureVSLoss of energy

Solution Approach 1:

The heat sink body is divided into multiple regions with different heights, allowing heat pipes of different heights to be mounted in corresponding grooves. This segmentation enables direct contact between heat pipes and heat generating components of different heights, eliminating the need for sub heat sinks and reducing heat loss.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the heat sink body are designed with different local qualities (heights) to match the specific requirements of heat generating components at different positions. This allows optimized heat dissipation for each component without using additional sub heat sinks.

Inventive Principle:

Principle #3Local quality

2Temperature

If a sub heat sink is used to accommodate components of different heights, then heat dissipation is possible, but material cost increases

Engineering Contradiction:

Improveheat dissipationVSAvoidmaterial cost

Core Design Contradiction:

TemperatureVSQuantity of substance

Solution Approach 1:

The heat sink body serves multiple functions: it provides structural support, contains grooves for mounting heat pipes of different heights, and directly dissipates heat from components of varying heights. This multi-functionality eliminates the need for separate sub heat sinks, reducing material cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Temperature

If a sub heat sink is used for heat dissipation, then heat loss is reduced, but product slimming is limited

Engineering Contradiction:

Improveheat dissipation efficiencyVSAvoidproduct thickness

Core Design Contradiction:

TemperatureVSLength of stationary object

Solution Approach 1:

The heat sink utilizes vertical dimensionality by creating grooves at different depths within the same heat sink body, allowing heat pipes of different heights to be mounted without increasing product thickness. This dimensional approach enables efficient heat dissipation while maintaining a slim profile.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 design improves heat dissipation performance, reduces material costs, and allows for a more compact product form factor by enabling direct contact with heat pipes for components of different heights.

Implementation Method 1

A heat pipe is a pipe-shaped heat exchanger containing a working fluid inside that efficiently transfers heat between the interface of two solids by combining the principles of thermal conductivity and phase transition

Methodology Applied

Scientific EffectPhase transition: Phase Change

Implementation Method 2

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12063757B2Heat sink

Publication Date: 2024.08.13 LG INNOTEK CO LTD

AI summary

The present invention relates to a heat sink comprising a heat pipe. A heat sink, according to one embodiment of the present invention, comprises: a first heat pipe mounted in a first groove formed on a first surface of a heat sink; a second heat pipe mounted in a second groove formed on a second surface of the heat sink; and a third groove in which at least a portion of the second heat pipe mounted in the second groove is exposed in the direction of the first surface. A method for producing a heat sink comprises the steps of: forming, on a first surface of a heat sink, a first groove in which a first heat pipe is mounted; mounting the first heat pipe on the first surface by disposing and press-fitting the first heat pipe in the first groove; forming, on a second surface of the heat sink, a second groove in which a second heat pipe is mounted; mounting the second heat pipe on the second surface by disposing and press-fitting the second heat pipe in the second groove; and forming a third groove such that at least a portion of the second heat pipe is exposed in the direction of the first surface.