Micro-combustion thermoelectric generator based on stable combustion in porous media

Abstract

The invention discloses a micro-combustion thermoelectric generator based on porous medium micro-combustion. The structure of the micro-combustion thermoelectric generator is displayed in a flake-shape, and is successively formed from top to bottom by a fuel storage layer, an upper thermoelectric generation sheet, an upper thermal insulation layer, a combustion module, a lower thermal insulation layer, a lower thermoelectric generation sheet, and an oxidant storage layer, wherein a combustion chamber is arranged at a hot end of each thermoelectric generation sheet; a gas preheating layer is arranged at a cold end of each thermoelectric generation sheet; the combustion module comprises an inlet channel, an outlet channel and a combustion chamber; the inlet channel is a square double helix parallel structure; the center combustion chamber is filled with porous mediums; and the upper and lower thermal insulation layers are filled by mixture of conduction oil and trace inert gas. The micro-combustion thermoelectric generator based on porous medium micro-combustion has the advantages of being high in energy, being small in volume, being light in weight, having no noise, being continuously stable and being low in discharge, and mainly aims at the mini electronic equipment field, and is suitable for the field and for power supply of mini precision portable equipment of the military and aerospace field.

Description

technical field [0001] The invention relates to a micro-miniature power generation device with low power demand, and a micro-combustion power generation system using a porous medium combustion chamber and a semiconductor thermoelectric power generation system. Background technique [0002] At present, batteries have penetrated into various fields of military and civilian use, from communication instruments to reconnaissance equipment, from night vision instruments to individual night vision goggles, from warships to warships, and from GPS to GPS. However, there are many problems in the lithium-ion batteries currently used by people: (1) lithium primary batteries have poor safety and there is a danger of explosion; (2) lithium-ion batteries of lithium cobalt oxide cannot be discharged at high currents, and the safety is poor; (3) ) Lithium-ion batteries need to protect the circuit to prevent the battery from being overcharged and discharged; (4) The production requirements ar...

AI Technical Summary

Problems solved by technology

However, there are many problems in the lithium-ion batteries currently used by people: (1) lithium primary batteries have poor safety and there is a danger of explosion; (2) lithium-ion batteries of lithium cobalt oxide cannot be discharged at high currents, and the safety is poor; (3) ) Lithium-ion batteries need to protect the circuit to prevent the battery from being overcharged and discharged; (4) The production requirements are high and the cost is high; (5) The chemical properties of lithium metal are very active, and its processing, storage, and practical requirements for the environment are very high ; (6) When used in a cycle, the charging time of the lithium battery is longer, and the standby time is shorter

[0008] Among the existing patented inventions, for example, the patent number of Chongqing University is ZL 200920126143.1 "A Portable Miniature Thermoelectric Generator", which adopts catalytic combustion method, and the overall temperature of the catalytic reaction should be maintained at 500-600 °C; the application number of Nanjing University of Aeronautics and Astronautics is 201010158485.9 "Micro-combustion semiconductor thermoelectric generator", the surface temperature of the combustion module is still much higher than the high temperature limit that the thermoelectric module can withstand, so the thermoelectric module will be damaged and cannot continue to provide stable power

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