Fuel tank for direct liquid fuel battery system with self-closing interface

Abstract

The invention belongs to the technical field of direct liquid fuel battery systems, and particularly discloses a fuel tank for a direct liquid fuel battery system with a self-closing interface. The fuel tank comprises a fuel tank body, a falcon clamping mechanism, a spiral sealing cover and the self-closing interface, wherein the upper end of the fuel tank body is respectively provided with the spiral sealing cover and the falcon clamping mechanism; the self-closing interface is formed in the bottom of the fuel tank body and comprises an external interface, an inner core and a sealing spring, wherein one end of the external interface is connected with an interface fixing hole formed in the lower part of the fuel tank body, and the other end of the external interface is connected with an external interface hole formed in an external installation body; one end of the inner core is inserted into the external interface from one end of the external interface, the other end of the inner core is positioned by a rabbet on the external interface, the sealing spring is contained in the interface fixing hole, one end of the sealing spring is connected with the bottom of the interface fixing hole in a propping manner, and the other end of the sealing spring is connected with the other end of the inner core in the propping manner; and the inner core can slide in the external interface in a reciprocating manner along the axial direction under the action of external force or the sealing spring, and the other end of the inner core and the rabbet on the external interface are departed or are connected in a sealing manner. The fuel tank provided by the invention avoids fuel leakage in a storage and assembly process.

Description

[0001] technical field [0002] The invention belongs to the technical field of direct liquid fuel cell systems, in particular to a fuel tank for direct liquid fuel cell systems with a self-closing interface. Background technique [0003] A direct liquid fuel cell is a chemical reaction device that converts chemical energy in liquid fuel (such as methanol, ethanol, etc.) directly into electrical energy. Due to the high specific energy of liquid fuels such as methanol and ethanol, and the advantages of simple structure of the fuel cell system, this type of battery has broad application prospects in the field of portable mobile power. [0004] At present, in order to meet the miniaturization requirements of portable fuel cells, researchers try to integrate the fuel cartridge into the fuel cell system, and some researchers use capillary force to supply liquid fuel from the fuel tank to the fuel electrode, but the fuel is directly supplied to the fuel in a liquid state. Therefore...

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Problems solved by technology

[0004] At present, in order to meet the miniaturization requirements of portable fuel cells, researchers try to integrate the fuel cartridge into the fuel cell system, and some researchers use capillary force to supply liquid fuel from the fuel tank to the fuel electrode, but the fuel is directly supplied to the fuel in a liquid state. Therefore, when mounted in a small portable device, in a use environment where the front, rear, left, right, or up and down of the battery unit are constantly changing, during long-term use, the following problems of fuel may be incomplete, and the fuel supply may be cut off.

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