Shielding Connection Assembly for Stable Cable Shield Joints
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Solution Overview
Problem
Current shielding connection structures for cables are immature, leading to unstable and ineffective electromagnetic shielding between cable cores, which compromises the electromagnetic interference protection in vehicles equipped with batteries.
Innovation Solution
A shielding connection assembly comprising a conductive device with internal and external devices that securely connect and press or weld the shielding layers of two cables, ensuring continuity and strength of the electromagnetic shielding, while insulation layers prevent short-circuits and additional protective layers enhance safety and impermeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional shielding connection structures are used to butt two cables, then the cable assembly can be manufactured, but the shielding connection is unstable and ineffective, failing to ensure electromagnetic shielding between cable cores
Solution Approach 1:
The shielding connection structure is divided into multiple functional segments: a connection body for mechanical attachment, a shielding layer for electromagnetic shielding, and insulation layers for electrical isolation. This segmentation allows each component to perform its specific function optimally, ensuring stable shielding connection while maintaining manufacturing feasibility through modular assembly
Solution Approach 2:
The patent employs a nested structure where the shielding layer is positioned within the connection body, and insulation layers are arranged both inside and outside the connection body. This nested arrangement ensures that the shielding connection is stable and effective while allowing for systematic manufacturing processes
2Reliability
If the shielding net is wrapped around the cable core, then electromagnetic shielding is provided, but the connection between shielding nets of two cables at the butting position is unstable
Solution Approach 1:
The patent merges the shielding net connection with a dedicated connection body structure. The shielding nets of two cables are both connected to the same connection body, creating a unified and stable shielding connection that enhances both reliability and connection strength at the cable butting position
Solution Approach 2:
The connection body acts as an intermediary component that mediates the connection between the shielding nets of two cables. This intermediary structure provides a stable and strong connection point, ensuring that the shielding effectiveness is maintained while achieving reliable mechanical attachment
3Reliability
If insulation layers are added to protect the conductive device, then short-circuit prevention is improved, but the device complexity increases
Solution Approach 1:
Insulation layers are applied locally at specific positions where short-circuit risks exist, such as inside the connection body and outside the connection body at the cable ends. This localized approach provides effective short-circuit prevention while minimizing the increase in device complexity by avoiding unnecessary insulation throughout the entire structure
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 ensures stable electromagnetic shielding between cables, improves connection strength, and enhances safety and structural integrity by preventing overheating and environmental ingress, meeting standard shielding performance requirements.
Implementation Method 1
a conductive device, a first shielding internal device, a first shielding external device, a second shielding internal device and a second shielding external device. The conductive device has a first end connected to the first shielding layer and a second end connected to the second shielding layer
Implementation Method 2
The main function of the shielding net is to provide a good shielding effect on the cable core, so as to prevent a current magnetic field of the cable core from generating electromagnetic interference on external electrical components
Implementation Method 3
an inner wall of the conductive device is provided with an inner insulation layer; and the first end and the second end of the conductive device are not provided with the inner insulation layer. The inner insulation layer can well protect the inner side of the conductive device, thereby preventing the conductive device from being in conductive contact with other components inside the conductive device
Data Source
AI summary
The embodiments of the present disclosure provide a shielding connection assembly, a cable assembly and a method for preparing a cable assembly, which relate to the technical field of cables, and solve the problem that a cable shielding connection structure is immature. The shielding connection assembly provided by the present disclosure is used to connect a first shielding layer and a second shielding layer, and includes: an conductive device having a first end connected to the first shielding layer and a second end connected to the second shielding layer; a first shielding internal device disposed on an inner side of the first shielding layer; a first shielding external device disposed on an outer side of the first end; a second shielding internal device disposed on an inner side of the second shielding layer; and a second shielding external device disposed on an outer side of the second end. The shielding connection assembly provided by the present invention can effectively connect shielding layers of two cables which are connected to each other, thereby ensuring the effective and continuity of the shielding effect of the cables.