Adjustable Bed Spring Support With Active EM Shielding
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Solution Overview
Problem
Adjustment devices for spring bases in beds face challenges in minimizing electromagnetic radiation and achieving a compact, flat design while maintaining effective shielding and efficient power supply.
Innovation Solution
The integration of active electrical shielding connected to a protective conductor, along with a Y-shaped cable harness and separate sockets for power and shielding, allows for efficient electromagnetic radiation neutralization and a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If active electrical shielding connected to protective conductor is integrated into the adjustment device, then electromagnetic radiation is effectively reduced, but device complexity increases
Solution Approach 1:
The patent combines the shielding function with the existing protective conductor connection in the adjustment device. The shielding is integrated into the control device housing and connected to the protective conductor contact, merging the shielding function with the existing electrical connection structure rather than adding a completely separate system.
Solution Approach 2:
The protective conductor connection serves dual purposes: it provides the necessary protective earth connection for electrical safety and simultaneously functions as the connection for the active shielding. This multi-functionality reduces the need for additional separate connections and components.
2Object-affected harmful factors
If separate sockets for power and shielding are provided on control device, then shielding effectiveness is improved, but ease of operation deteriorates
Solution Approach 1:
The patent combines the power connection and shielding connection into a single integrated socket structure. The three-wire standard protective contact socket provides both the power conductors (outer conductor and neutral conductor) and the protective conductor connection in one unified interface, eliminating the need for separate sockets.
Solution Approach 2:
The standard protective contact socket performs multiple functions simultaneously: it provides power supply through the outer and neutral conductors while also establishing the protective earth connection that enables the shielding function. This multi-functional design simplifies the user interface.
3Reliability
If Y-shaped cable harness with multiple plugs is used, then shielding and power supply efficiency are improved, but device complexity increases
Solution Approach 1:
The cable harness is segmented into multiple sections with different plug types (three-wire standard protective contact plug, two-wire standard plug, and additional plug) to separately handle power supply and shielding connections. This segmentation allows each part of the cable system to be optimized for its specific function.
Solution Approach 2:
The patent transitions from a single linear cable structure to a Y-shaped cable harness with multiple branching sections. This dimensional change in the cable architecture allows simultaneous connection to multiple different sockets on the control device, enabling both power and shielding functions to be established efficiently.
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 solution effectively reduces electromagnetic radiation and enables a compact, flat design for the adjustment device, improving user comfort and reducing space occupation in beds.
Implementation Method 1
at least the control device (22) is provided with electrical shielding (80), which is electrically connected to a protective conductor contact (65, 71, 76) via a protective wire (81)
Data Source
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AI summary
The system has electromotors driving an adjustable under suspension sections (3, 4, 6, 7). A power cord has specific harness. An outer conductor and a neutral conductor are connected with a portion of a three-conductor norm earthing contact plug. A protective conductor is connected with a portion of a two-conductor norm plug. A common node location part is attached with a portion of an additive plug. A control unit comprises an electrical shielding unit that is electrically connected to an auxiliary jack by a protection line. A frame (2) is placed around a pivotal axis (12).