Touch-Protected Contact Design for Safer EV Battery Connections
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Summary
Problems
Existing connectors for electric vehicle battery modules lack robustness, safety, and reliability in handling high currents and voltages, while also being vulnerable to vibrations and temperature fluctuations, and do not adequately prevent sparking or electric arcs during connection.
Innovation solutions
A touch-protected contact part designed for electric vehicle battery modules, featuring a contact element made from a highly conductive material, a connection element with higher electrical resistance made from a different material, and a contact housing that holds these elements, ensuring safe and reliable high-current connections by reducing voltage peaks and preventing arcs.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a highly conductive material is used for the contact element to ensure good electrical connection, then electrical conductivity is improved, but the risk of sparking and electric arcs during connection increases
Why choose this principle:
The connection system is divided into two distinct elements: a contact element made from highly conductive material (first material) and a connection element made from material with higher electrical resistance (second material). This segmentation allows the highly conductive contact element to ensure good electrical connection while the higher-resistance connection element suppresses sparking and arcs during the connection process.
Principle concept:
If a highly conductive material is used for the contact element to ensure good electrical connection, then electrical conductivity is improved, but the risk of sparking and electric arcs during connection increases
Why choose this principle:
Different materials with different electrical resistance properties are applied to different parts of the connection system. The contact element uses highly conductive material for optimal electrical connection, while the connection element uses material with higher electrical resistance specifically at the connection point to reduce sparking. This local differentiation of material properties resolves the contradiction between conductivity and arc suppression.
Application Domain
Data Source
AI summary:
A touch-protected contact part designed for electric vehicle battery modules, featuring a contact element made from a highly conductive material, a connection element with higher electrical resistance made from a different material, and a contact housing that holds these elements, ensuring safe and reliable high-current connections by reducing voltage peaks and preventing arcs.
Abstract
Touch-protected contact part for connecting battery modules configured to be connected with a mating contact part in a plugging direction includes a contact element made from a first material, a connection element that penetrates the contact element and that is electro-conductively connected with the contact element, and a contact housing that holds the contact element and the connection element; wherein the connection element is held in the contact housing in a plugging position, in which the connection element protrudes from the contact element in the plugging direction, and the part of the connection element penetrating the contact element and protruding from the contact element is made from a second material that has a greater electrical resistance than the electrical resistance of the first material.