Fuel bottle for a fuel cartridge using the same.

Abstract

A fuel bottle 10 for a fuel cell having a bottle main body 12 for containing fuel for a fuel cell and comprising a nozzle portion 11 at the tip portion of the bottle main body 12 on which a coupler for connecting with a main body of a fuel cell can be attached and a trunk portion having a generally elliptic shape in cross section and having been formed by blow molding. In this bottle 10, length L1 in one direction of minor axis from the center On of the nozzle portion of the elliptic shape in cross section differs from length L2 in the other direction of the minor axis from the center On of the nozzle portion. By this structure, a moving space of a push button when the fuel bottle 10 is housed in a hard case can be secured while necessary capacity of the fuel bottle 10 is secured. Pinch portions 13 and 14 are formed in lowly stretched portions of the bottle main body 12 in a manner to protrude outwardly whereby contact areas of the pinch portions 13 and 14 are increased and contact strength thereby is improved.

Description

TECHNICAL FIELD[0001]This invention relates to a fuel bottle for a fuel cell and a fuel cartridge using the same which can achieve a shape, capacity and strength adapted for containing methanol fuel for a methanol fuel cell and for housing the bottle in a hard case and being capable of flowing out methanol fuel by pushing a push button and adapted also for forming the bottle by blow molding.BACKGROUND ART[0002]Various liquid type fuel cells capable of generating electric current directly from liquid fuel have recently been developed. A direct methanol fuel cell (DMFC) using methanol as fuel has attracted attention as a power source of mobile type electronic devices, for it does not need a reformer and therefore can be made in a compact design.[0003]In a direct methanol fuel cell (DMFC) called a passive system, in particular, methanol which is a liquid fuel is supplied directly by coupling a fuel cartridge containing methanol to a fuel tank provided on the main body of a fuel cell wh...

AI Technical Summary

Benefits of technology

The technical effects of this patent are to provide a fuel bottle for a fuel cell that can be efficiently housed in a hard case and secure necessary capacity and formability, as well as to provide a fuel cartridge for a fuel cell that can securely house the fuel bottle and enable fuel for the cell to flow out by pushing a push button. Additionally, the patent describes a fuel bottle with a nozzle portion and trunk portion having an elliptic shape in cross section, where the length in one direction of minor axis from the center of the nozzle portion differs from the other direction, to secure sufficient space for the push button while still allowing for inner pressure of the bottle to increase due to temperature.

Problems solved by technology

In this case, however, there arises the problems that the hard case must have a space for moving the push button and that the inside container must have sufficient shape, capacity and formability.

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