Shield Case Groove Contact Mechanism for EMI and Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shield cases for electronic components fail to effectively absorb and prevent the leakage of unwanted electromagnetic waves and efficiently manage heat generated by these components, leading to potential noise leakage and inadequate cooling.
Innovation Solution
A shield case design featuring a frame and cover made of high thermal and electric conductivity materials, with a groove contact mechanism and a heat-transfer member, which securely attaches to the electronic component, absorbs electromagnetic waves, and enhances heat transfer and retention, preventing electromagnetic wave leakage and ensuring efficient cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional shield case with frame and cover is used, then the structure is simple and easy to manufacture, but it fails to effectively block electromagnetic waves and manage heat
Solution Approach 1:
The shield case is constructed from multiple materials with different properties: the frame uses electromagnetic wave-absorbing material, the cover uses heat-conductive material, and the heat transfer member uses high thermal conductivity material. This composite structure enables simultaneous electromagnetic shielding and heat management without significantly increasing complexity.
Solution Approach 2:
The shield case integrates multiple functions into a single assembly: electromagnetic wave blocking through the frame, heat conduction through the cover, and heat transfer from the electronic component via the heat transfer member. This multi-functional design improves reliability without proportionally increasing complexity.
2Temperature
If a conventional shield case is used, then manufacturing is easy, but heat transfer and cooling efficiency are inadequate
Solution Approach 1:
A heat transfer member is introduced as an intermediary component between the electronic component and the cover. This member with high thermal conductivity material facilitates efficient heat transfer from the component to the cover, which then conducts heat to the external environment, improving cooling efficiency while maintaining manufacturability.
Solution Approach 2:
The cover is designed with specific local properties: a contact portion with high thermal conductivity material for heat transfer, and a groove structure for engagement. This localized optimization of material properties and structure achieves efficient heat management without requiring complete redesign of the entire assembly.
3Reliability
If the cover is engaged with the frame using conventional methods, then assembly is simple, but engagement security and electromagnetic wave blocking are insufficient
Solution Approach 1:
The engagement structure is divided into distinct segments: a groove formed in the cover and a corresponding contact portion on the frame. This segmentation allows for precise positioning and secure engagement while maintaining relatively simple manufacturing processes for each component.
Solution Approach 2:
The engagement mechanism utilizes a vertical dimension with the groove and contact portion arrangement, creating a snap-fit or interference fit connection. This dimensional approach provides secure engagement without requiring complex fastening mechanisms, balancing reliability and simplicity.
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 shield case effectively blocks electromagnetic waves, maintains secure engagement, and ensures efficient heat transfer and cooling of electronic components, preventing noise leakage and maintaining optimal temperature ranges.
Implementation Method 1
a shield case which covers the electronic component is used to block the unwanted electromagnetic waves
Implementation Method 2
a heat-transfer member, which securely attaches to the electronic component, absorbs electromagnetic waves, and enhances heat transfer and retention
Data Source
AI summary
According to one embodiment, a shield case includes a frame configured to surround an electronic component and including a contact portion at a top of the frame, and a cover including a side plate and a top plate, a groove being formed at a peripheral portion of the top plate. The side plate is outside the frame and the groove contacts the contact portion when the cover is engaged with the frame.