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Fuel-cell engine temperature collection circuit

A technology of engine temperature and fuel cell, applied in thermometers, thermometer parts, thermometers with direct heat-sensitive electric/magnetic components, etc., can solve the problems of high cost of circuit hardware, interference, malfunction, etc., and achieve simplification Temperature measurement circuit, improved anti-interference, and high measurement reliability

Active Publication Date: 2007-06-13
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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AI Technical Summary

Problems solved by technology

The cost of circuit hardware in this way is high, and the signal transmission process is easily interfered by strong electric equipment such as fuel cell engine fans and water pumps, which affects the instability of measurement data, causes misoperation of the fuel cell engine heat dissipation control system, and in severe cases leads to fuel cell engine system failure. collapse

Method used

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  • Fuel-cell engine temperature collection circuit
  • Fuel-cell engine temperature collection circuit

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Referring to Fig. 2, Fig. 2 is an embodiment of temperature control in a 50 kW fuel cell power generation system of the present invention. The single-chip microcomputer chip used by the single-chip microcomputer U1 is Philips 87C591, and the semiconductor temperature sensor adopts DS18B20 product, and the temperature measurement range can meet the requirements of the current operating temperature range of the fuel cell engine -20°C-90°C. The single-chip microcomputer U1 is connected to the temperature sensor U2 through a switch input and output interface POT1. The single-chip microcomputer software reads the value of the temperature sensor strictly according to the timing requirements of DS18B20. The circuit branch composed of C28. On the branch, one end of the resistor R14 is connected to the power supply VCC, and the other end is conn...

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Abstract

The invention relates to a fuel cell engine temperature gathering IC that includes MCU, temperature sensor, and communication interface circuit. The temperature sensor could be semiconductor temperature sensor or thermocouple temperature sensor, which is installed in fuel cell water tank to gather temperature signal. The temperature sensor connects to MCU, and MCU connects to communication circuit. Comparing to existing technology, it has the advantages of strong system interference immunity, high measuring reliability, simple temperature measuring circuit, low cost of hardware, and it needs not to adjust in locale.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a fuel cell engine temperature acquisition circuit. Background technique [0002] A fuel cell is a device that converts the chemical energy generated during the electrochemical reaction of fuel and oxidant into electrical energy. The core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode is composed of a proton exchange membrane and two conductive porous diffusion materials (such as carbon paper) sandwiched on both sides of the membrane. A finely dispersed catalyst (such as metal platinum) that can initiate an electrochemical reaction is evenly distributed on the two boundary surfaces that are in contact with the conductive material. On both sides of the membrane electrode, the electrons generated during the electrochemical reaction are drawn out through the external circuit with conductive objects, forming a current loop. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/01G01K7/02G01K1/02
Inventor 付明竹鲍军辉郭磊胡里清
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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