Electronic Device Shielding Noise Interference
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Solution Overview
Problem
Existing electronic devices with cooling plates and circuit boards connected through holes face challenges in suppressing noise interference between the circuit boards.
Innovation Solution
The electronic device incorporates a cooling plate with a through-hole, a first circuit board on one surface, a second circuit board on the back surface, a connector for electrical connection, a shield wall surrounding the first electronic component, and a shield lid enclosing the ground conductor, forming an electromagnetic shield body to restrict noise influence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a through-hole is provided in the cooling plate to electrically connect the first circuit board to the second circuit board, then electrical connection between circuit boards is achieved, but noise interference between the circuit boards increases
Solution Approach 1:
The patent divides the cooling plate into functionally separated zones: a first region containing the through-hole for electrical connection and a second region containing the shield wall for noise shielding. This segmentation allows the through-hole to perform its electrical connection function while the shield wall independently performs noise interference prevention, resolving the contradiction between achieving electrical connectivity and preventing noise transmission.
Solution Approach 2:
The shield wall acts as an intermediary element between the first and second circuit boards. It is positioned adjacent to the cooling plate to intercept and block noise generated by electronic components on either board before the noise can propagate through the through-hole to the other board, thus mediating the harmful interaction while preserving the electrical connection function.
2Adaptability or versatility
If electronic components are mounted on both sides of the cooling plate, then device functionality is enhanced, but noise interference between components on different sides increases
Solution Approach 1:
The shield wall is strategically positioned in the region adjacent to the cooling plate where noise interference occurs. This localized shielding approach provides noise protection specifically in the critical area where electronic components on opposite sides of the cooling plate may interfere with each other, while maintaining the overall device functionality enabled by having components on both sides.
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 configuration effectively restricts noise generated by one electronic component from affecting the other through the through-hole, thereby reducing noise interference between the circuit boards.
Implementation Method 1
The first electronic component is disposed inside an electromagnetic shield body including the cooling plate, the shield wall, the ground conductor, and the shield lid
Data Source
AI summary
An electronic device includes: a cooling plate having a through-hole; a first circuit board disposed on one surface of the cooling plate; a second circuit board disposed on a back surface of the cooling plate; a connector that electrically connects the first circuit board to the second circuit board through the through-hole; a shield wall disposed on the one surface to surround a first electronic component; and a shield lid disposed adjacent to the one surface. The first circuit board includes a ground conductor electrically connected to the cooling plate through the shield wall. The first electronic component is disposed inside an electromagnetic shield body including the cooling plate, the shield wall, the ground conductor, and the shield lid.