Foldable Electromagnetic Shielding Box for Noise Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing testing systems face challenges in shielding electronic devices from environment noise, particularly electromagnetic waves, due to the limitations of fixed radio-frequency anechoic chambers and the interference generated by measuring equipment, which can distort measurement results.
Innovation Solution
A foldable electromagnetic shielding box formed by multiple plates that can be unfolded to create an isolated room for testing objects and folded for storage or transport, along with a remote control apparatus and measuring equipment, effectively shields test objects from external electromagnetic waves and interference generated by the measuring equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a radio-frequency anechoic chamber is used to shield electromagnetic waves, then electromagnetic wave shielding is improved, but the device becomes fixed and cannot be moved to different locations
Solution Approach 1:
The electromagnetic shielding chamber is divided into multiple detachable plate components that can be assembled and disassembled. Each plate is a separate module that can be easily connected to form a complete shielding enclosure or separated for storage and transport, enabling the system to be moved to different testing locations while maintaining shielding effectiveness.
Solution Approach 2:
The shielding structure transitions from a fixed static design to a dynamic reconfigurable system. The plates can be assembled into different configurations based on testing requirements, and the entire structure can be folded into a compact stack for transport, providing both shielding capability and mobility.
2Measurement precision
If measuring equipment is placed inside the anechoic chamber, then measurement capability is improved, but the measuring equipment itself generates electromagnetic waves that interfere with the test object
Solution Approach 1:
The internal space of the shielding chamber is segmented into two distinct regions: an inner isolated room for placing the test object that requires electromagnetic shielding, and an outer region for placing the measuring equipment. This spatial segmentation allows the measuring equipment to generate necessary electromagnetic signals without interfering with the test object, while maintaining measurement capability.
Solution Approach 2:
The measuring equipment is extracted from the inner isolated room and placed in the outer region of the shielding chamber. This separation removes the source of electromagnetic interference from the sensitive measurement zone, allowing the test object to be measured without direct exposure to equipment-generated electromagnetic waves while still enabling measurement functionality.
3Object-affected harmful factors
If a fixed anechoic chamber is used, then electromagnetic shielding is effective, but storage space requirements increase and transport becomes difficult
Solution Approach 1:
The shielding plates are designed to nest within each other when not in use, forming a compact stacked configuration. Each plate can be inserted into or alongside other plates, significantly reducing the storage volume required compared to storing a complete assembled chamber or separate components, while maintaining the full shielding capability when assembled.
Solution Approach 2:
The shielding structure transforms from a large fixed volume when assembled to a compact folded configuration for storage and transport. The plates can be folded and stacked to minimize space occupation, enabling easy storage in small spaces and convenient transport to different locations while preserving the electromagnetic shielding function.
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 foldable shielding box reduces electromagnetic interference, allowing for accurate measurements by isolating test objects from external noise and equipment-generated interference, and its portable design enhances usability by allowing the system to be moved for different testing scenarios.
Implementation Method 1
The foldable electromagnetic shielding box is operable to be unfolded to form an isolated room for accommodating the test object... Thereby, the foldable electromagnetic shielding box can shield the test object from external electromagnetic waves
Implementation Method 2
The foldable electromagnetic shielding box can shield the test object from electromagnetic waves that may be generated by the measuring equipment
Data Source
AI summary
A testing system capable of shielding from environment noise uses a foldable electromagnetic shielding box to isolate devices that will produce electromagnetic interference to a test object, so as to reduce the influence of these devices on the measurement of the test object. In an embodiment, measuring equipment and the test object are disposed in the foldable electromagnetic shielding box for being shielded from outside electromagnetic waves. In another embodiment, the measuring equipment is disposed in the foldable electromagnetic shielding box while the test object is disposed outside the foldable electromagnetic shielding box, so that the test object to be tested is shielded from electromagnetic waves from the measuring equipment. The foldable electromagnetic shielding box can be folded into a stack for convenience of storage or transport.