Power supply system and method of controlling the same

A technology of power supply system and control unit, applied to chemical instruments and methods, circuits, fuel cells, etc., can solve the problems of size reduction, high cost, and increase in the number of parts, so as to achieve size reduction, prevent power generation performance degradation, and suppress Effects of increased carbon monoxide concentration

Inactive Publication Date: 2008-07-30
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from a cost point of view, providing such a design of a CO concentration meter and a switching valve is disadvantageous (higher cost) and requires an increase in the number of parts, which is not conducive to downsizing

Method used

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  • Power supply system and method of controlling the same
  • Power supply system and method of controlling the same
  • Power supply system and method of controlling the same

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Embodiment Construction

[0034] A power supply system and a method of controlling the power supply system according to the present invention will now be described in detail in conjunction with an electronic device including the power supply system according to the present invention by referring to the accompanying drawings illustrating preferred embodiments of the present invention.

[0035]

[0036]First, the configuration of a first embodiment of a power supply system according to the present invention will be described with reference to FIG. 1 . The power supply system of this embodiment includes a fuel reforming type solid polymer electrolyte fuel cell (PEFC), and is suitable for using a liquid fuel such as methanol as a fuel for power generation.

[0037] FIG. 1 is a schematic block diagram of a first embodiment of a power supply system according to the present invention, showing the structure of the power supply system.

[0038] The power supply system of this embodiment includes a control dev...

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PUM

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Abstract

A power supply system using a fuel cell comprises a chemical reaction section (100) including, a evaporation section (103, 112, 114) that receives a power generation fuel and water supplied to it, heating at least the water supplied to it to evaporate it and a reaction section (105, 107) that generates a power generation gas on the basis of the steam generated by the evaporation section and the power generation fuel, a fuel supply section (P1, V1) that supplies the power generation fuel to the chemical reaction section, a water supply section (P2, V2) that supplies water to the chemical reaction section and a control section (130) that controls the operation of the system so as to stop supply of the power generation fuel from the fuel supply section to the chemical reaction section when the evaporation section is not in a condition suitable for evaporating operation. The power supply system suppresses any rise of the carbon monoxide concentration at the time of starting and stopping the system and prevents the power generation performance of the system from degrading.

Description

technical field [0001] The invention relates to a power supply system, a method of controlling the power supply system and an electronic device comprising the power supply system. In particular, the present invention relates to a power supply system using a fuel cell and a method of controlling such a power supply system. Background technique [0002] Various chemical batteries (cells) have been and are increasingly used in daily life and in many different industrial fields. Batteries include primary batteries such as alkaline dry batteries and manganese dry batteries, and secondary batteries such as nickel-cadmium batteries, nickel-hydrogen batteries, and lithium-ion batteries. Meanwhile, research and development of power supply systems using fuel cells in practical applications have been carried out because fuel cells only slightly affect the environment (bring only a small burden on the environment) and can achieve a high energy utilization rate of about 30% to 40%. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/06H01M8/04C01B3/32C01B3/48
CPCC01B3/48H01M8/0618Y02E60/50C01B2203/066C01B3/323C01B2203/0283C01B2203/1614C01B2203/0233C01B2203/1685C01B2203/1229C01B2203/1288C01B2203/1604H01M8/04223C01B2203/1609H01M8/04225H01M8/04228H01M8/04302H01M8/04303C01B3/32H01M8/04H01M8/06
Inventor 美藤仁保椛泽康成河村义裕盐谷雅治
Owner CASIO COMPUTER CO LTD
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