High-Voltage Connector Shielding with Spring Ring Prestress
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Solution Overview
Problem
Existing connecting apparatuses for transmitting high-voltage current in motor vehicles face challenges in simplifying the installation process while ensuring robustness and optimal shielding, particularly in limited installation spaces and with stringent mass production requirements.
Innovation Solution
A connecting apparatus featuring a plug-like configuration with prestressed shielding, utilizing a shielding sleeve with a spring ring and crimped sleeve for effective electromagnetic interference shielding, along with removable plastic insulating housings and coding mechanisms for correct connection, ensures robust and reliable high-voltage current transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a simplified shield construction is used, then installation space requirements are reduced, but fitting complexity increases
Solution Approach 1:
The spring ring provides dynamic prestress to the shielding arrangement, automatically maintaining contact pressure between the shielding sleeve and shielding housing under varying loads. This dynamic mechanism simplifies the overall fitting process while ensuring reliable electromagnetic shielding in compact installation spaces.
Solution Approach 2:
The spring ring changes the mechanical parameter of contact pressure dynamically, maintaining optimal shielding performance across different installation conditions. This parameter adjustment resolves the contradiction by enabling simplified shield construction without compromising fitting reliability.
2Reliability
If prestress is applied to the shielding arrangement, then shielding performance is improved, but structural complexity increases
Solution Approach 1:
The spring ring acts as a flexible elastic element that provides prestress to the shielding arrangement. This flexible component maintains reliable electromagnetic shielding performance without requiring complex rigid structural solutions, thus improving shielding reliability while minimizing structural complexity.
Solution Approach 2:
The spring ring automatically adjusts and maintains the prestress force on the shielding arrangement, ensuring optimal shielding performance without requiring external adjustment mechanisms. This self-regulating feature improves reliability while keeping the structure simple.
3Ease of operation
If removable fixing members are used, then ease of assembly is improved, but connection reliability may be compromised
Solution Approach 1:
The spring ring applies preliminary prestress to the shielding arrangement before final assembly is complete. This pre-applied force ensures that the shielding components remain firmly held in position throughout assembly and operation, maintaining connection reliability while allowing for easy assembly and disassembly using removable fixing members.
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 provides a simplified, cost-effective, and reliable high-voltage current transmission system with enhanced shielding and robustness, ensuring correct connection and preventing errors through coding and prestressed shielding, suitable for mass production in the motor vehicle sector.
Implementation Method 1
The shielding part preferably is a shielding sleeve with a spring ring. In this way, the first connection element always is kept under prestress in the connecting apparatus.
Implementation Method 2
The shielding arrangement can have a crimped sleeve to ensure an adequate electrical connection between the shield and the shielding sleeve.
Data Source
AI summary
A connecting apparatus for transmitting high-voltage current in a motor vehicle has a first connector (4), a second connector (6) and a shielding housing (12). The first connector (4) has at least one housing arrangement (20) with a first insulating housing (21) with at least one first contact (18) that is connected electrically to an internal conductor (16) of a cable (14), and has a shielding arrangement (28) connected to a shield (30) of the cable (14). The shielding arrangement (28) is connected to the shielding housing (12) by a shielding part (32). The second connection element (6) has at least one second housing arrangement (41) with a second insulating housing part (42) and at least one second contact (46) connected to a current line element. The shielding part (32) is a shielding sleeve (34) with a spring ring (36).