Multimedia Socket Spring Force Device Tool-Free Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing multimedia sockets require tools and multiple steps for connecting and disconnecting coaxial cables, leading to increased assembly time and potential damage to the inner conductors due to single-point contact mechanisms.
Innovation Solution
A multimedia socket design featuring a spring force device with a funnel-shaped contacting space that allows for tool-free insertion and secure contact of the inner conductor at multiple points, maintaining constant characteristic impedance and optimizing signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw actuating a clamping tongue is used to contact and clamp the inner conductor, then reliable electrical contact is achieved, but tool usage and multiple work steps are required for connecting and disconnecting cables
Solution Approach 1:
The spring force device automatically contacts and clamps the inner conductor when the cable is inserted, and automatically releases when the cable is removed. The spring mechanism self-adjusts to maintain contact pressure without requiring manual intervention, tools, or multiple work steps, thus achieving both reliable electrical contact and easy cable connection/disconnection
Solution Approach 2:
The manual screw actuation mechanism is replaced with a spring-based automatic clamping mechanism. The spring force device uses elastic mechanical energy to maintain constant contact pressure on the inner conductor, eliminating the need for screwdrivers and manual tightening operations while ensuring reliable electrical contact
2Device complexity
If a single-point contact mechanism is used to clamp the inner conductor, then the structure is simple, but the inner conductor may be damaged during connection and disconnection
Solution Approach 1:
The contact mechanism is segmented into multiple contact points along the inner conductor surface. Instead of a single clamping point, the spring force device distributes contact pressure across multiple points, reducing stress concentration and preventing conductor damage while maintaining electrical contact
Solution Approach 2:
The contact pressure distribution is changed from concentrated single-point pressure to distributed multi-point pressure. The spring force device adjusts the pressure parameters to maintain constant, gentle contact that ensures electrical connectivity without exceeding the conductor's mechanical strength limits
3Manufacturing precision
If multiple work steps and tools are required for cable connection, then precise control is achieved, but assembly time increases
Solution Approach 1:
The spring force device is pre-loaded and positioned in advance within the housing. When the cable is inserted, the pre-positioned spring mechanism immediately engages and clamps the inner conductor without requiring sequential manual operations. This preliminary preparation enables both precise contact establishment and rapid assembly
Solution Approach 2:
Multiple separate operations (cable insertion, conductor exposure, contact establishment, clamping force application) are merged into a single automatic action. The spring force device performs all these functions simultaneously when the cable is inserted, eliminating the need for multiple work steps and tools while maintaining connection precision
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
Enables simplified and secure connection/disconnection of coaxial cables without tools, ensuring reliable electrical contact and minimizing signal loss through multiple contact points, thus improving assembly efficiency and reducing cable damage.
Implementation Method 1
a spring force device (114a, 114b) having a contacting space (116a, 116b) and an insertion opening (117a, 117b) through which the contacting space (116a, 116b) is accessible
Data Source
Figure 1a
Figure 1b~1c
Figure 2
AI summary
The box (100) has housing (102) provided with connection parts (110a, 112a, 110b, 112b) for connecting a connection cable. The connection part comprises an inner conductor contact part for contacting an inner conductor of the cable. An inner cross-section of a contact space of a spring force device tapers from an insertion opening. The inner conductor is provided in contact regions within the contact space in contact with the spring force device. A spring bush is provided in the contact space of the spring force device.