Integrated Voltage Measurement Device for Vehicle Battery Cells
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Solution Overview
Problem
Conventional voltage measuring devices for battery cells in electric vehicles have complex structures due to separate connectors and wires, leading to difficult installation and increased working hours, as they require manual connection of multiple components.
Innovation Solution
A voltage measuring device with a pair of voltage measurement connection parts that use an electrical connection part and a voltage transmission connector to collect and transmit both negative and positive voltages, featuring a printed circuit with integrated connection terminals and connectors, and a hinge coupler for rotatable assembly, reducing the need for auxiliary parts and simplifying installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate connectors and wires are provided on both sides of the battery module for sensing, then voltage measurement coverage is improved, but device complexity increases and installation becomes difficult
Solution Approach 1:
The patent combines separate connectors and wires into an integrated voltage measuring device that includes a pair of voltage measurement connection parts, an electrical connection part, and a voltage transmission connector. This merging reduces the number of separate components while maintaining the ability to measure voltages from battery cells connected at both sides of the battery module.
Solution Approach 2:
The voltage measuring device is designed to universally connect to battery cells at both sides of the battery module through its pair of voltage measurement connection parts. The device can measure voltages from multiple battery cells simultaneously, providing multi-functional capability while reducing overall system complexity.
2Measurement precision
If separate connectors and wires are provided on both sides of the battery module for sensing, then voltage measurement coverage is improved, but installation time increases
Solution Approach 1:
By merging separate connectors and wires into an integrated voltage measuring device, the installation process is simplified. The device requires fewer connection steps and less manual assembly, directly reducing installation time while maintaining comprehensive voltage measurement coverage across the battery module.
3Reliability
If wires and busbars are manually connected to the battery cells, then electrical connection is achieved, but the number of work processes increases
Solution Approach 1:
The patent integrates the electrical connection functionality into the voltage measurement connection parts and electrical connection part, eliminating the need for separate manual wire and busbar connections. This merging maintains reliable electrical connection while reducing the number of distinct work processes required during installation.
Data Source
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AI summary
Disclosed herein is a voltage measuring device for a battery cell of a vehicle capable of reducing the number of auxiliary parts and improving assemblability by collecting a negative voltage and a positive voltage of a battery cell, which are respectively measured by a pair of voltage measurement connection parts, at a voltage transmission connector through an electrical connection part. The voltage measuring device for a battery cell of a vehicle includes a pair of voltage measurement connection parts configured to measure a voltage of a battery cell by being respectively connected to a negative electrode and a positive electrode of the battery cell, an electrical connection part provided between the pair of voltage measurement connection parts and configured to connect the pair of voltage measurement connection parts to be electrically connectable with each other, and a voltage transmission connector provided at one of the pair of voltage measurement connection parts and configured to guide the voltage of the battery cell to be transmitted to the outside.