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Microminiature pump used for heat radiation of small-sized fuel battery

A fuel cell, micro-miniature technology, used in fuel cell parts, fuel cells, liquid fuel engines, etc., can solve the problems of small size of heat dissipation device, limited installation space of fuel cell, and inability to dissipate heat.

Inactive Publication Date: 2008-02-27
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] But so far, there is no relatively small micro-pump system suitable for the internal heat dissipation of micro-miniature fuel cells. Heat dissipation; the cooling device is required to be small in size and fast in heat dissipation

Method used

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  • Microminiature pump used for heat radiation of small-sized fuel battery
  • Microminiature pump used for heat radiation of small-sized fuel battery
  • Microminiature pump used for heat radiation of small-sized fuel battery

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Embodiment Construction

[0022] The principle and specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] As shown in Figures 2 and 3, the present invention includes a sealed racetrack-shaped circulation channel 2, a viscous circulating medium that fills the entire racetrack-shaped circulation channel, a circular section rotor shaft 1 perpendicular to the racetrack-shaped circulation channel, and a drive rotor shaft electric drive system. The rotor shaft 1 is placed vertically in the circulating flow channel and eccentrically placed in the circulating flow channel, wherein the part of the flow channel where the rotor shaft is installed is composed of a width S 2 A wide linear runner and a width of S 3 The narrow linear channel and the arc-shaped channel that smoothly connects the two linear channels, the diameter D of the circular section of the rotor shaft and the distance S between the upper surface of the circulating ...

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Abstract

The miniature pump for small fuel cell to dissipate heat has runway type circulating flow channel with viscous circular medium packed and rotor shaft set vertically inside the circulating flow channel eccentrically. The present invention is designed based on small fuel cell with the features of small inside space and enough electricity, and obtains the geometric structure of the runway type circulating flow channel via experiment and numerical calculation. The present invention has compact structure for easy installation inside small fuel cell, stable flow of heat transferring circular glycol medium in the runway type circulating flow channel to reach the heat dissipating requirement for the small fuel cell, and capacity of driving the miniature pump with the electric power inside the small fuel cell.

Description

technical field [0001] The invention relates to a micropump, in particular to a micropump device suitable for heat dissipation of small fuel cells, and belongs to the technical field of micropumps. Background technique [0002] A fuel cell is a device that directly converts chemical energy into low-voltage direct current through an electrochemical reaction. Due to the high energy conversion efficiency of the fuel cell, the system's efficiency has nothing to do with the load, low pollution, and easy operation, the fuel cell has become a practical new energy source. However, how to dissipate the excess heat generated by the chemical reaction inside the fuel cell has become a very important issue restricting the development of fuel cells, especially small fuel cells. [0003] How to install a heat dissipation system in the small internal space of a small fuel cell, Mihir Sen et al. A conceptual miniature continuous vertical axis rotor viscous pump model is proposed, which pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/00H01M8/02H01M8/04701
CPCY02E60/50
Inventor 刘树红邵杰吴玉林
Owner TSINGHUA UNIV