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A Partition Test System for Detecting Fuel Cell Current and Temperature Distribution

A fuel cell and test system technology, which is applied to fuel cells, components that only measure current and thermometers, etc., can solve the problems of high process cost and immature technology, and achieve the effects of simple implementation, elimination of damage and low cost.

Active Publication Date: 2021-12-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of high process cost and immature technology of the existing buried resistance technology, the present invention improves and designs a collection board for detecting fuel cell current and temperature distribution with simple structure and mature technology

Method used

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  • A Partition Test System for Detecting Fuel Cell Current and Temperature Distribution
  • A Partition Test System for Detecting Fuel Cell Current and Temperature Distribution
  • A Partition Test System for Detecting Fuel Cell Current and Temperature Distribution

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Embodiment Construction

[0030] The present invention is aimed at a fuel cell with a power of 10kw; the impedance of the copper-clad gold-plated partition is 3 milliohms to less than 5 milliohms, the size is 12mm*8mm, the size of the reserved rectangle is 4mm*3mm, and the distance between adjacent copper-clad gold-plated partitions 5mm; the size of the temperature-sensitive resistor is less than 2mm*1.5mm, and the impedance is 10K; a printed circuit board with a three-layer structure, including two interlayers, divides all copper-clad gold-plated partitions into two parts, and the equal-impedance wiring of one part is set In the first interlayer, the other part of the equal-impedance wiring is arranged in another interlayer; the equal-width and equal-distance equal-impedance wiring method is adopted. The width of the equal-impedance wiring is 0.25mm and the length is 122mm. The impedance achieved is below 10 milliohms .

[0031] Such as figure 1 As shown, a fuel cell multifunctional partition test syst...

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Abstract

The invention discloses a partition test system for detecting fuel cell current and temperature distribution, which belongs to the field of fuel cell testing, especially the field of testing the current and temperature distribution of fuel cell stacks. The acquisition board of the present invention adopts the equal impedance wiring method to make the impedance between each partition and the sampling resistor as consistent as possible; the sampling resistor is arranged on the outside of the acquisition board, no buried resistance process is required, the cost is low and the implementation is simple; the temperature sensitive resistor is placed on the printed circuit board instead of being buried in the flow channel, it eliminates the damage of the temperature measuring element to the fuel cell structure and does not affect the reaction in the battery; it can realize online high-density matrix partition current and temperature distribution measurement, and visualize the data in real time. Display the current distribution and temperature characteristics of the sub-regions; the invention can be used in high-speed acquisition scenes, and is of great significance for studying the dynamic characteristics of fuel cells.

Description

technical field [0001] The invention belongs to the field of fuel cell testing, in particular to the field of testing the current and temperature distribution of fuel cell stacks. Background technique [0002] With people's increasing attention to environmental issues, new environmentally friendly energy sources have gradually entered people's research vision. As an efficient and clean new energy device, fuel cells have been gradually applied in aerospace, ships, automobiles, backup power and other fields. Among them, proton exchange membrane fuel cells are considered to be an important development direction of new energy sources in the future due to their high energy conversion efficiency, low operating temperature, short start-up time, and high power density. The life and performance of proton exchange membrane fuel cells are affected by many factors, and the influence of these factors is directly reflected in the current distribution and temperature distribution inside t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
CPCG01K1/14G01K7/24G01R19/0092H01M8/04373Y02E60/50Y02P70/50
Inventor 曹继申陈锦华殷聪李凯汤浩
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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