Power Adapter Heat Dissipation Hole Shielding

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Solution Overview

Problem

Small power adapters face issues with concentrated heat dissipation, leading to slow heat dissipation efficiency and poor heat dissipation effects, which affect the safety performance of the product.

Innovation Solution

A power adapter design featuring a housing with heat dissipation holes, a protective assembly that covers the holes to prevent dust and debris, and a heat dissipation adhesive that conducts heat to these holes for efficient dissipation, along with a light transmitting portion for improved aesthetics and functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If heat dissipation holes are provided in the housing, then heat dissipation efficiency is improved, but dust and debris may enter the receiving cavity

Engineering Contradiction:

Improveheat dissipation efficiencyVSAvoiddust and debris contamination

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The protective assembly acts as an intermediary component between the heat dissipation holes and the external environment. It covers the heat dissipation holes to prevent dust and debris from entering the receiving cavity, while still allowing heat to dissipate effectively through the protective assembly's structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective assembly serves multiple functions simultaneously: it protects the heat dissipation holes from contamination while maintaining heat dissipation capability. This multi-functional design resolves the contradiction by making a single component that addresses both concerns.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Volume of moving object

If the power adapter is made smaller in volume, then portability is improved, but heat becomes more concentrated and heat dissipation efficiency decreases

Engineering Contradiction:

Improvepower adapter volumeVSAvoidheat concentration

Core Design Contradiction:

Volume of moving objectVSTemperature

Solution Approach 1:

The housing is segmented into functional regions including the receiving cavity, heat dissipation portion, and light transmitting portion. The heat dissipation holes are strategically positioned in the heat dissipation portion to create dedicated heat escape pathways, allowing efficient heat dissipation despite the compact overall size.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Heat dissipation is addressed by utilizing the three-dimensional structure of the housing. Heat dissipation holes are provided in the heat dissipation portion which extends from the main body, creating additional spatial dimensions for heat escape routes without increasing the overall volume of the power adapter.

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 achieves fast and efficient heat dissipation, preventing heat accumulation and enhancing product safety while maintaining effective heat dissipation without hindering it, and also prevents external contaminants from entering.

Implementation Method 1

a heat dissipation adhesive connected to the light emitting assembly and the electronic assembly, and the heat dissipation adhesive has thermal conductivity and is capable of conducting heat of the light emitting assembly to the heat dissipation hole

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the heat dissipated by the electronic assembly inside the receiving cavity can be dissipated outward through the heat dissipation hole to achieve a fast and efficient heat dissipation effect

Methodology Applied

Scientific EffectHeat dissipation: Convection

Implementation Method 3

the protective portion is spaced apart from the housing, and the projection of the protective portion toward the housing covers the heat dissipation hole... prevents external dust and debris from falling into the receiving cavity through the heat dissipation hole

Methodology Applied

Scientific EffectPhysical barrier protection: Physical Containment

Data Source

PatentUS11605925B2Power adapter

Publication Date: 2023.03.14 GUANGDONG GOPOD GRP HLDG CO LTD

AI summary

A power adapter includes a housing, an electronic assembly and a protective assembly. The housing has a receiving cavity, and the housing is provided with at least one heat dissipation hole penetrating to the receiving cavity. The electronic assembly comprises a plurality of electronic elements located in the receiving cavity. The protective assembly comprises a connection portion connected to an outer wall of the housing and extending outward, and a protective portion connected to an extension end of the connection portion, the protective portion is spaced apart from the housing. The projection of the protective portion toward the housing covers the heat dissipation hole. The protective portion of the power adapter may shield the heat dissipation hole to prevent external dust from falling into the receiving cavity through the heat dissipation hole. Heat dissipated by the electronic assembly may be dissipated out through the heat dissipation hole.