Voltage monitoring and diagnosing device and method of fuel cell stack

A fuel cell stack and voltage monitoring technology, which is applied in measuring devices, measuring current/voltage, measuring electricity, etc., can solve the problem that connectors are difficult to meet the requirements of shock resistance, waterproof and dustproof, reduce system reliability, increase material and production costs and other issues, to achieve the effect of reducing material cost and processing cost, improving reliability and reducing quantity

Active Publication Date: 2010-03-17
SUNRISE POWER CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] 1) A general fuel cell stack consists of hundreds of single cells connected in series, and the method of one-by-one inspection requires a lot of voltage measurement lines, which not only increases material and production costs, but also reduces the reliability of the entire system due to too many measurement

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  • Voltage monitoring and diagnosing device and method of fuel cell stack
  • Voltage monitoring and diagnosing device and method of fuel cell stack
  • Voltage monitoring and diagnosing device and method of fuel cell stack

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the embodiment that accompanying drawing provides.

[0027] attached figure 1 It is an embodiment of two sections and one detection, and the detection voltage range is 0-2.4V. Connect one end of the measurement wire harness to the even-numbered plates of the fuel cell stack, and the other end of the measurement wire harness is connected to the fuel cell stack voltage measurement unit through the 121-pin vehicle connector, and the fuel cell stack voltage measurement unit detects the 121-pin vehicle connector. The voltage information of each measurement point transmitted by the plug-in is used to obtain the adjacent voltage difference of the even-numbered plates of the fuel cell stack. Compare the measured voltage with the average voltage. When the measured voltage of one or more cells is lower than the average voltage and reaches a preset value, the fuel cell stack voltage measurement unit determ...

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Abstract

The invention relates to a voltage monitoring device of a fuel cell stack, comprising a connector assembly, a measuring wiring harness and a voltage measuring unit of the fuel cell stack, wherein theconnector assembly is used for a 121-stitching machine; one end of the measuring wiring harness is respectively connected with an even number of polar plates or a three multiple number of polar plates, and the other end is connected with the voltage measuring unit of the fuel cell stack through the connector assembly used for the 121-stitching machine; and the voltage measuring unit of the fuel cell stack detects the voltage information of each measuring point, which is transmitted by the connector assembly used for the 121-stitching machine, and compares the average voltage of the fuel cell stack with the voltage information of the measuring point to determine whether the voltage of a cell positioned at the measuring point is normal. The voltage monitoring device realizes the voltage monitoring and diagnosing of a fuel cell used for a vehicle and has the advantages of low realization cost, simple structure, safety, reliability, and the like.

Description

technical field [0001] The invention belongs to the field of fuel cells, in particular to a voltage monitoring device for a vehicle-mounted fuel cell. Background technique [0002] Currently, fuel cell vehicles monitor the operating status of the fuel cell stack, usually by monitoring the voltage of each cell of the fuel cell stack. [0003] In the prior art, the monitoring of the fuel cell stack operating state of a fuel cell vehicle has the following disadvantages: [0004] 1) A general fuel cell stack consists of hundreds of single cells connected in series, and the method of one-by-one inspection requires a lot of voltage measurement lines, which not only increases material and production costs, but also reduces the reliability of the entire system due to too many measurement lines; [0005] 2) At present, multi-channel D-type connectors and cables are usually used to connect between the fuel cell stack voltage inspection and the fuel cell stack voltage measurement unit...

Claims

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Application Information

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IPC IPC(8): G01R31/36G01R19/165
Inventor 王克勇侯中军吕颜辉李胜波孙德尧明平文
Owner SUNRISE POWER CO LTD
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