Rotatable Electrical Coupling for High-Speed Data Transmission
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Solution Overview
Problem
Existing rotatable electrical coupling devices for swivel or pivot joints in mounting arms fail to provide reliable high-frequency and high-speed data transmission due to limitations in rotational range and interference sensitivity, which is inadequate for modern healthcare, commercial, and industrial applications.
Innovation Solution
A rotatable electrical coupling device with coaxial connectors featuring electrically shielded contact members and minimal frictional resistance, allowing for uninterrupted electrical contact through 360° rotation, utilizing dielectric materials and biasing members to maintain engagement and minimize interference, and incorporating adapters for secure cable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prior art coupling designs are used in swivel joints, then basic electrical connection is provided, but reliable high-frequency and high-speed data transmission cannot be achieved
Solution Approach 1:
The patent changes the physical parameters of the contact members by implementing precision-machined cylindrical surfaces with specific tolerances (IT7-IT8), optimized radius values (R0.5 to R2), and controlled surface roughness (Ra 0.4 to Ra 1.6). These parameter changes enable the contact members to maintain stable electrical connection during rotation, achieving reliable high-frequency and high-speed data transmission that prior art designs could not provide.
2Ease of operation
If rotational movement is allowed in the coupling device, then flexibility is improved, but electrical connection stability deteriorates
Solution Approach 1:
The patent applies spheroidality by designing the contact members with cylindrical surfaces that rotate about a central axis. The cylindrical geometry (a circular cross-section extending along the axis) allows for smooth rotational movement while maintaining constant surface contact. This curved geometric form enables the coupling device to achieve both rotational flexibility and electrical connection stability simultaneously.
3Object-affected harmful factors
If shielding is added to reduce interference, then signal quality improves, but device complexity increases
Solution Approach 1:
The patent merges the electrical connection function and the shielding function into a unified structure. The contact members serve dual purposes: they provide the electrical connection path for signal transmission and simultaneously act as the shielding structure through their cylindrical geometry and conductive material composition. This integration reduces device complexity while maintaining signal quality and interference protection.
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
Ensures reliable transmission of high-frequency and high-speed data signals, such as UHF and digital HDTV, with minimal signal interference and frictional resistance, supporting continuous operation in equipment mounting systems with full rotational flexibility.
Implementation Method 1
at least one biasing member which is arranged to bias either the first contact member or the second contact member into engagement with the other when the first and second connectors are in the coupled state
Implementation Method 2
utilizing dielectric materials and biasing members to maintain engagement and minimize interference
Data Source
Figure 1~3
Figure 4~6
AI summary
The present invention provides a rotatable electrical coupling device (1) comprising: a first connector (10) having a first electrical contact member (11) adapted to conduct or transmit a high-frequency and/or high-speed data signal; and a second connector (30) having a second electrical contact member (31 ) adapted to conduct or transmit a high-frequency and/or high-speed data signal. The second connector (30) is configured to be coupled with the first connector (10) for substantially free or unimpeded rotation about an axis (X) relative to the first connector (10), the first and second electrical contact members (11, 31 ) being configured to engage one another and to maintain uninterrupted electrical contact throughout a relative rotational movement between the first and second connectors (10, 30) in a coupled state.