Acoustic Controller Shielding via Partitioned Housing
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Solution Overview
Problem
In acoustic controllers with integrated power supplies, the arrangement of circuit boards and shielding members at different positions complicates electromagnetic shielding, requiring additional space and obstructing size reduction.
Innovation Solution
A housing design with a metal lower casing partitioning the interior into upper and lower spaces, where the circuit board with controls and input/output connectors is in the upper space and the power supply board is in the lower space, using a shielding member to effectively separate and reduce electromagnetic noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If circuit boards and shielding members are arranged at different positions in the housing, then electromagnetic shielding is improved, but the device complexity and housing size increase
Solution Approach 1:
The patent merges the shielding member with the lower casing into a single integrated component. The lower casing is constructed with a shielding material that combines the structural support function with the electromagnetic shielding function, eliminating the need for separate shielding members and simplifying the overall device structure while maintaining effective electromagnetic noise isolation between circuit boards
2Object-affected harmful factors
If shielding members are added to separate circuit boards, then electromagnetic shielding is improved, but the housing size increases
Solution Approach 1:
The shielding function is merged into the lower casing structure itself, which is already a necessary component of the housing. By making the lower casing from shielding material, the patent eliminates the need for additional space-consuming separate shielding members, achieving effective electromagnetic shielding without increasing the overall housing volume
Solution Approach 2:
The lower casing serves multiple functions simultaneously: it provides structural support for the housing, acts as a mounting surface for circuit boards, and functions as an electromagnetic shielding barrier. This multi-functionality reduces the need for additional components and maintains compact housing dimensions
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 simplifies the construction, reduces the size of the acoustic controller, and effectively shields electromagnetic noise, allowing for a more compact and cost-efficient device while maintaining effective noise reduction and heat dissipation.
Implementation Method 1
a lower casing constituted by a shielding member... electromagnetic shielding is required between the power supply board and a circuit board in the housing to prevent electromagnetic noise caused by the power supply board from affecting another circuit board
Data Source
AI summary
An acoustic controller includes a housing including: an upper cover; a lower casing constituted by a shielding member; and a lower cover mounted on an opposite side of the lower casing from the upper cover. The lower casing partitions an interior of the housing into (i) an upper space formed by the upper cover and the lower casing and (ii) a lower space formed by the lower casing and the lower cover. A first circuit board is disposed in the upper space, and a second circuit board is disposed in the lower space.