Flat Cable Shielding for Actuator Noise Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing number of cables required for actuator systems in vehicle test systems, especially when combined with noise suppression measures, leads to inefficiencies in cable laying and residual noise interference in control signal cables.
Innovation Solution
A flat cable configuration with a conductive shielding body covering the outer periphery of wires, arranged in parallel with power, control signal, and additional cables, featuring a cable side connector that houses and separates connection terminals to minimize noise influence, allowing efficient laying and noise suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate cables are used for power, control signals, and additional equipment, then each cable can be individually shielded, but the workload to lay these cables increases significantly
Solution Approach 1:
The patent combines multiple separate cables (power cable, control signal cable, and other equipment cables) into a single integrated flat cable assembly. This merging maintains individual shielding for each cable type while reducing the number of separate laying operations, thus improving productivity without sacrificing noise suppression effectiveness.
Solution Approach 2:
Within the integrated flat cable, each functional cable (power, control signal, etc.) is kept as a separate shielded unit with its own conductive shielding body. This segmentation allows each cable type to maintain its individual noise protection while being part of the unified flat cable structure, resolving the contradiction between collective efficiency and individual protection.
2Object-affected harmful factors
If a conductive shielding body is formed on the outer peripheral side of the wire, then electromagnetic shielding is provided, but residual noise influence on control signal cable may still occur
Solution Approach 1:
The patent applies different shielding configurations to different cable types within the flat cable assembly. Control signal cables receive enhanced local shielding protection specifically positioned to protect against noise from adjacent power cables, while power cables have their own shielding. This localized quality enhancement ensures control signal integrity without requiring complete redesign of all cables.
Solution Approach 2:
The flat cable structure introduces intermediate shielding elements and positioning structures between the power cable and control signal cable. These intermediary shielding components act as barriers that block electromagnetic interference from reaching the control signal cable, thereby maintaining signal integrity even in the presence of power cable noise.
3Adaptability or versatility
If the number of cables is increased to accommodate additional equipment like measuring instruments, then system functionality is enhanced, but the complexity of cable management increases
Solution Approach 1:
The flat cable assembly is designed as a universal multi-functional unit that can accommodate power cables, control signal cables, and cables for additional equipment like measuring instruments all in one integrated structure. This universality allows the system to expand functionality without proportionally increasing cable management complexity, as all cables are organized within the single flat cable assembly.
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 configuration enhances work efficiency in laying cables while effectively reducing noise interference on control signal cables, maintaining functionality even in tight spaces and airtight conditions.
Implementation Method 1
a cable which is made to have a shielding function (an electromagnetic shield, etc.) by forming a conductive shielding body on an outer peripheral side of a wire
Data Source
AI summary
Considering a case that a device requiring electric power is arranged in a room where an actuator such as an automatic driving device is disposed, a power cable, a control signal cable, and an electric power cable for the actuator are arranged in parallel and extended in one direction, and thereby a flat part is formed. In a cable side connector provided at both ends of the flat part, a connection terminal of the control signal cable is held at a position where a connection terminal of the electric power cable is put between the connection terminal and a connection terminal of the power cable.