Shield Can Opening Cover for Noise and Heat Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices face challenges in effectively shielding noise while also conducting heat due to the sealed nature of shield cans, which hinders heat radiation despite having openings for thermal diffusion structures.
Innovation Solution
An electronic device design featuring a shielding member connected to a conductive plate that covers the opening of a shield can, incorporating a support member and thermal conductive materials to enhance both noise shielding and heat radiation performance through a simplified assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the shield can is disposed in a sealed manner to enclose the electrical element, then noise shielding performance is improved, but heat radiation efficiency deteriorates
Solution Approach 1:
The shield can is divided into a sealed portion and an opening portion, allowing the structure to simultaneously provide noise shielding through the sealed sections and heat radiation through the opening section. This segmentation enables the shield can to perform both functions without requiring separate components.
Solution Approach 2:
Different portions of the shield can have different properties: the sealed portions provide noise shielding while the opening portion provides heat radiation. This local differentiation of properties allows the single component to address both contradictory requirements in different spatial locations.
2Temperature
If an opening is formed in the shield can to enable heat transfer, then heat radiation efficiency is improved, but noise shielding performance deteriorates
Solution Approach 1:
The opening is strategically positioned and sized to allow heat transfer while minimizing noise leakage. The opening portion is segmented from the sealed portions, creating a controlled pathway for heat while maintaining overall noise shielding integrity through the surrounding sealed structure.
Solution Approach 2:
The opening acts as an intermediary structure that mediates between the conflicting requirements of heat radiation and noise shielding. By carefully designing the opening's position, size, and shape, it provides a controlled interface that allows heat to pass through while the surrounding sealed structure maintains noise shielding performance.
3Reliability
If multiple separate components are used to achieve both noise shielding and heat radiation, then functional performance is improved, but device complexity increases
Solution Approach 1:
The noise shielding function and heat radiation function are merged into a single integrated shield can structure. The shield can simultaneously serves as both a noise barrier and a heat dissipation component, eliminating the need for separate noise shielding and heat sinking components and simplifying the overall assembly.
Solution Approach 2:
The shield can is designed as a multi-functional component that performs both noise shielding and heat radiation functions. This universal design allows a single component to fulfill multiple roles that would traditionally require separate parts, thereby reducing assembly complexity while maintaining functional performance.
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 design secures noise shielding performance while improving heat radiation efficiency and simplifies the assembly process by automating the mounting of the shield structure, effectively addressing the dual challenges of noise and heat management.
Implementation Method 1
a shield can of a metal material disposed in a manner to enclose electrical elements in order to shield noise emitted from the electrical elements disposed therein
Implementation Method 2
the opening may be disposed between the electrical element and a thermal diffusion structure (e.g., a heat radiating sheet, a heat radiating plate, a heat pipe, a vapor chamber, or a metal bracket) of an upper end of the shield can to be used as a communication path of a thermal conductive material (e.g., a thermal interface material (TIM)) for transferring heat
Data Source
Figure 1~2
Figure 3
Figure 4a
AI summary
Provided is an electronic device including a printed circuit board (PCB) in which at least one electrical element is disposed; a shield can including a concave portion and an opening formed in part of the concave portion and configured to receive the at least one electrical element at an inside of the concave portion disposed on the PCB; a conductive plate configured to cover the opening at an outside of the concave portion; a support member disposed between the conductive plate and the outside of the concave portion; and a shielding member disposed between the support member and the outside of the concave portion and connected to at least part of the conductive plate extended in a direction of the opening from the support member and configured to cover the opening.