Segmented Plug Terminal Structure for Vibration-Resistant Contact
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Solution Overview
Problem
Conventional clamping terminals are prone to deformation and elasticity loss due to external forces or long-term vibrations, leading to electrical connection failures.
Innovation Solution
A plug-in terminal design featuring terminal laminations with connection arms, conductive contact portions, and plugging grooves that allow for stable clamping and electrical connection, even under stress, using materials like tellurium-copper alloy and beryllium copper alloy for enhanced conductivity and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a clamping terminal uses a thick metal plate to increase strength, then the strength is improved, but the metal plate is easily deformed or its elasticity is weakened under external force or long-term vibration
Solution Approach 1:
The terminal lamination is divided into multiple connection arms (at least two) that are fixedly connected together. Each connection arm includes an overhanging end and a fixed end, creating a segmented structure that distributes mechanical stress and prevents deformation while maintaining elasticity for reliable clamping.
Solution Approach 2:
The patent specifies using tellurium-copper alloy or beryllium copper alloy materials for the connection arms. These composite materials provide both high strength and excellent elasticity, resolving the contradiction between strength and deformation resistance by selecting materials that possess both properties simultaneously.
2Stability of the object's composition
If the metal plate is made thinner to reduce deformation, then the deformation is reduced, but the elasticity is weakened causing electrical connection failure
Solution Approach 1:
By segmenting the terminal into multiple connection arms fixedly connected together, the structure maintains sufficient strength without requiring a thick metal plate. The segmented design allows each arm to be thinner while collectively providing the necessary clamping force and elasticity.
Solution Approach 2:
The use of tellurium-copper alloy or beryllium copper alloy enables the connection arms to be made thinner while maintaining both strength and elasticity. These materials have superior mechanical properties that allow reduced thickness without compromising clamping capability.
3Device complexity
If conventional clamping terminals are used, then the structure is simple, but electrical connection failure occurs under external force or long-term vibration
Solution Approach 1:
The terminal lamination with multiple connection arms provides a moderately complex structure that significantly improves reliability. The segmented design with fixedly connected arms creates a more robust connection that resists deformation under external forces and long-term vibration, preventing electrical connection failures.
Solution Approach 2:
By specifying tellurium-copper alloy or beryllium copper alloy materials, the patent enhances reliability through superior material properties. These materials maintain their mechanical and electrical properties under stress and vibration, ensuring stable electrical connections without excessive structural complexity.
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 electrical connections with reduced deformation and increased strength, improving mechanical and electrical performance while allowing for efficient mass production and adaptability to various plugging requirements.
Implementation Method 1
The clamping terminal is clamped by the elasticity of a metal plate
Implementation Method 2
The conductive contact portion is in contact with and electrically connected to the connection arm
Data Source
AI summary
The present disclosure provides a plug-in terminal, a plug-in structure, and a motor vehicle. The plug-in terminal includes a terminal lamination, the terminal lamination includes at least two connection arms, each of the connection arms includes an overhanging end and a fixed end, the fixed ends of the connection arms are fixedly connected together, and a plugging groove is disposed between adjacent two of the connection arms; and the overhanging end is provided with a conductive contact portion. The present disclosure alleviates the technical problem that a failure of an electrical connection is likely to occur when a clamping terminal is subjected to an external force or a long-term plug vibration.