RF Shielding Lock Box with Composite Faraday Cage
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Solution Overview
Problem
Existing RF shielding boxes face limitations in effectively blocking radio frequency (RF) and electromagnetic (EM) signals, particularly with materials like plastic, steel, and aluminum, which either offer inadequate protection or require additional measures like coatings or internal bags, and lack portability and cost-effectiveness.
Innovation Solution
A portable RF and EM shielding device with a housing featuring a locking mechanism, attachment means, and a unique composite material that acts as a Faraday cage, providing comprehensive signal blocking without the need for internal bags or additional securing resources, and includes a keyed and coded locking unit for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If plastic housing is used for RF shielding box, then cost and portability are improved, but RF and EM signal protection is insufficient
Solution Approach 1:
The patent applies composite materials by combining plastic housing with conductive coatings (such as copper, aluminum, or steel coatings) to create a multi-layer structure. This composite approach allows the box to maintain the cost and portability advantages of plastic while gaining the RF and EM shielding capabilities of conductive materials. The conductive coating acts as a Faraday cage that blocks electromagnetic signals while the plastic substrate provides structural integrity and cost-effectiveness.
2Object-affected harmful factors
If EM/RF bag is used for shielding, then comprehensive signal protection is improved, but portability and convenience deteriorate due to repeated sealing and replacing
Solution Approach 1:
The patent merges the EM/RF shielding function with the housing structure itself. Instead of using a separate removable bag that requires repeated sealing and replacing, the shielding capability is integrated directly into the box housing through conductive coatings or composite material construction. This integration eliminates the need for separate shielding bags while maintaining comprehensive signal protection, thereby improving portability and convenience.
Solution Approach 2:
The patent makes the housing itself self-serving as the shielding mechanism. The conductive coating or composite material structure is permanently built into the housing, eliminating the need for external shielding bags. The housing automatically provides shielding protection without requiring user actions like sealing or replacing bags, making the system more convenient and portable while maintaining comprehensive signal protection.
3Strength
If anti-static plastic members are used in shielding box, then physical protection is provided, but electrical conductivity and RF shielding capability are insufficient
Solution Approach 1:
The patent transforms the anti-static plastic members into composite structures by coating them with conductive materials such as copper, aluminum, or steel. This composite approach maintains the physical protection and structural support functions of the plastic members while adding RF shielding capability through the conductive coating. The coated plastic members serve dual purposes: mechanical support and electromagnetic shielding.
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 solution effectively blocks both incoming and outgoing RF and EM signals, offering robust physical and electronic security for enclosed components, ensuring protection against signal interference and theft, while being portable and cost-effective.
Implementation Method 1
a housing made of a composite material that shields radio frequency and electromagnetic signals from entering and escaping the housing
Implementation Method 2
a locking unit positioned on a top surface of the lid member is designed to secure at least one article inside the storage member utilizing a locking mechanism
Data Source
AI summary
An electronic shielding device used to secure articles like keys and key fobs from the radiating signals is disclosed. The electronic shielding device includes a housing having a lid member and a storage member, a locking unit for securing articles utilizing a locking mechanism and a plurality of attachment means connected with the housing. The lid member includes first latch member and the storage member includes a second latch member. The radiating signal includes radio frequency and electromagnetic signals. The lid member is detachably attached with the storage member utilizing the first latch member and the second latch member. The locking unit is keyed and coded to a customer's own specific key/lock. The electronic shielding device is designed to attach to an object such as but not limited to a vehicle, a door and a window.