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Online detection device for internal current distribution of fuel cell

A current distribution and fuel cell technology, applied in fuel cells, current density measurement, circuits, etc., can solve the problems of insufficient measurement accuracy and consistency, and the inability to directly monitor the current density distribution of battery cells, so as to reduce the risk of explosion. Effect

Inactive Publication Date: 2021-01-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention proposes an on-line detection device for the internal current distribution of the fuel cell to solve the problems that the existing device cannot directly monitor the current density distribution of the middle cell of the stack, and the measurement accuracy and consistency are insufficient

Method used

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  • Online detection device for internal current distribution of fuel cell
  • Online detection device for internal current distribution of fuel cell
  • Online detection device for internal current distribution of fuel cell

Examples

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Embodiment 1

[0059] This embodiment provides an online detection device for the internal current distribution of a fuel cell, including a double-sided partition acquisition board 1, a host computer, and signal processing modules 2 located at both ends of the double-sided partition acquisition board; the double-sided partition acquisition board is a multi-layer The printed circuit board is arranged between any two adjacent fuel cell units, and is used for online detection of the current density distribution in the fuel cell;

[0060] The double-sided partitioned collection board is composed of 12×7 collection units arranged in an array, and the layered cross-sectional view of the double-sided partitioned collection board is shown in figure 1 As shown, each acquisition unit includes top-layer copper-coated gold-plated partition CT, top PCB insulation material layer 3, top wiring layer LT, middle PCB insulation material layer 4, bottom wiring layer LB, and bottom PCB Insulating material layer...

Embodiment 2

[0066] This embodiment provides an electric stack using an online detection device for the internal current distribution of the fuel cell, such as Figure 5 As shown, it includes a fuel cell stack, a double-sided partition acquisition board 1, a signal processing module 2, a host computer and an electronic load; the fuel cell stack includes a plurality of fuel cell units connected in series, and each fuel cell unit consists of sequentially stacked An anode bipolar plate B1, a membrane electrode M, and a cathode bipolar plate B2; the double-sided partition collection plate 1 is a multi-layer printed circuit board, which is arranged between any two adjacent fuel cell units, that is, it is located on the upper fuel cell unit. Between the cathode bipolar plate B2 of the battery unit and the anode bipolar plate B1 of the next fuel cell unit, such as Figure 6 As shown, it is used to detect the current density distribution of the partition inside the fuel cell online;

[0067] The ...

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Abstract

The invention provides an online detection device for internal current distribution of a fuel cell. The online detection device comprises a double-sided partition acquisition board, a signal processing module and an upper computer, wherein the double-sided partition acquisition board is arranged between any two adjacent fuel cell units and consists of a plurality of acquisition units, and each acquisition unit includes a top copper-clad gold-plated subarea, a top PCB insulating material layer, a top wiring layer, a middle PCB insulating material layer, a bottom wiring layer, a bottom PCB insulating material layer and a bottom copper-clad gold-plated subarea; the middle PCB insulating material layer is provided with a hollow area, and is internally filled with sampling resistors which are connected with metallized via holes in the middle of the top copper-clad gold-plated subarea and the bottom copper-clad gold-plated subarea; and the signal processing module performs signal processingon a potential difference between the two ends of the sampling resistor acquired by the top wiring layer and the bottom wiring layer, and displays and analyzes the potential difference in real time. The online detection device can detect the current density distribution condition of any position in a galvanic pile.

Description

technical field [0001] The invention belongs to the field of fuel, and in particular relates to an on-line detection device for internal current distribution of a fuel cell. Background technique [0002] With the shortage of traditional energy sources such as fossils and the continuous warming of the global climate, human beings are facing a huge energy crisis and environmental crisis. It is urgent to find new, efficient and clean energy sources to gradually replace traditional fossil energy sources. Proton exchange membrane fuel cells (PEMFC), as an efficient and clean clean energy device, has become a research hotspot in various countries due to its excellent performance, and has been gradually applied in aerospace, ships, automobiles, backup power and other fields . [0003] In practical applications, fuel cell products usually require multiple single-piece fuel cell units to be connected in series to form a higher-power power generation device. Structurally, bipolar pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04537G01R19/08
CPCG01R19/08H01M8/04582H01M8/04589Y02E60/50
Inventor 殷聪蒙奎宋亚婷汤浩吴迪孙博
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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