Cylindrical Crimp Connection Terminal for Low-Resistance Charging Seats
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Solution Overview
Problem
Existing connection terminals for new energy vehicle charging seats exhibit poor conductivity and mechanical properties, including high contact resistance and easy loosening, due to their crimping design.
Innovation Solution
A connection terminal with a crimping part that forms a cylindrical shape using splicing parts with a buckle structure, ensuring secure locking and improved conductivity by preventing separation, and a connection end with a fastener for enhanced electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional U-shaped base with side wings crimping structure is used, then the connection terminal can be manufactured with simple structure, but the contact resistance is high and current carrying capacity is poor
Solution Approach 1:
The crimping part is divided into a base part and two splicing parts that can be separately manufactured and then assembled together to form a cylindrical structure, improving conductivity while maintaining manufacturing simplicity
Solution Approach 2:
The base part and splicing parts are combined through buckles to form an integrated cylindrical crimping structure that provides both mechanical strength and electrical conductivity
2Reliability
If the crimping part uses a simple U-shaped base design, then the manufacturing process is easy, but the mechanical connection is prone to loosening
Solution Approach 1:
The crimping part is segmented into modular components (base part and splicing parts) that can be manufactured separately using standard processes, then assembled with buckles to create a secure mechanical connection resistant to loosening
Solution Approach 2:
The crimping part forms a cylindrical shape that provides uniform mechanical support and electrical contact around the conductor core, improving both mechanical stability and conductivity
3Reliability
If the splicing parts are connected without a locking mechanism, then the assembly process is simple, but the splicing parts may separate during crimping
Solution Approach 1:
Buckles are pre-formed on the splicing parts during manufacturing, enabling quick and reliable assembly without complex locking mechanisms during the crimping process
Solution Approach 2:
The buckle structure automatically locks the splicing parts together during assembly, providing self-securing functionality that prevents separation without requiring additional fastening steps
Data Source
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AI summary
The present invention discloses a connection terminal, a cable assembly, and a charging seat. The connection terminal comprises of: a crimping part (1) which is adapted to be crimped onto a first conductor; and a connection end (2) which is adapted to be electrically connected to a second conductor and is connected to the crimping part (1) to form an integral piece with the crimping part (1). The crimping part (1) comprises of a base part (10); and two splicing parts (11, 12) extending continuously from both sides of the base part (10). When the crimping part (1) is bent to form a cylindrical shape, the two splicing parts (11, 12) are spliced together to form a complete cylindrical shape. A buckle structure (11a, 12a) is formed on the two splicing parts (11, 12) to lock the two together, to ensure that the two splicing parts (11, 12) will not separate when the crimping part (1) is crimped onto the first conductor. In the present invention, the cylindrical crimping part can reduce contact resistance, improve current carrying capacity, and ensure the reliability of mechanical connection, greatly improving the conductivity and mechanical performance of the crimping part.