Polyamide-Encapsulated Power Interface for Fatigue and Heat Dissipation
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Solution Overview
Problem
Mobile terminal power interfaces face frequent fatigue damage due to repeated use and inadequate heat dissipation, leading to reduced charging efficiency and interface reliability.
Innovation Solution
A power interface design featuring a housing with a connection body encapsulated in polyamide resin, enhancing structural strength and heat dissipation, and incorporating expanded power pins for increased current load, along with an adhesive layer for stability, to delay fatigue and improve charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional power interfaces are used with repeated insertion and extraction, then the power interface is prone to fatigue damage, but the structural strength and durability are insufficient
Solution Approach 1:
The connection body is encapsulated with polyamide resin to form a composite structure that combines the conductivity of metal pins with the strength and heat dissipation properties of the resin material. This composite structure significantly improves fatigue resistance and structural durability while maintaining electrical functionality.
Solution Approach 2:
The power interface is divided into distinct functional components: conductive pins for electrical connection, polyamide resin encapsulation for structural strength, and adhesive layers for bonding. This segmentation allows each component to be optimized for its specific function while working together to improve overall reliability.
2Productivity
If conventional power interfaces are used for frequent charging, then heat dissipation is inadequate, but charging efficiency is reduced
Solution Approach 1:
The polyamide resin encapsulation material provides excellent thermal conductivity properties that enable efficient heat dissipation from the conductive pins during charging operations. This allows for faster charging speeds without excessive heat accumulation, improving charging efficiency while managing temperature.
3Ease of manufacture
If the power interface structure is simplified, then manufacturing is easier, but fatigue resistance is reduced
Solution Approach 1:
The encapsulation process combines multiple functions into a single manufacturing step: the polyamide resin simultaneously provides structural strength, heat dissipation, insulation, and fatigue resistance. This merging of functions achieves improved reliability without significantly complicating the manufacturing process, as the encapsulation can be applied through standard molding techniques.
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 extends the life of the power interface, enhances charging efficiency by facilitating fast charging, and improves reliability through effective heat dissipation and structural reinforcement.
Implementation Method 1
at least one of the first encapsulation portion and the second encapsulation portion is an encapsulation portion with polyamide resin... facilitates fast charging... effective heat dissipation
Data Source
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AI summary
A power adapter, mobile terminal, power interface (100), and manufacturing method therefor. The power interface (100) comprises a plug-in shell (110) and a plug-in body (120). An inner wall of the plug-in shell (110) is formed with a stopping groove (113), and the plug-in body (120) is disposed within the plug-in shell (110); the plug-in body (120) is provided with a first plastic-coated portion (130) and a plurality of pins (121) which are spaced apart; the first plastic-coated portion (130) wraps a part of the periphery of the pins (121) and is connected with the plug-in shell (110), the first plastic-coated portion (130) being a polyamide resin coated portion. A rear end of the first plastic-coated portion (130) which is close to the pins (121) is provided with a snap-fit flange (131) which is in a snap-fit connection with the stop groove (113).