2results about How to "Extend service time" patented technology

A kind of small milliwatt level thermoelectric cell based on americium isotope heat source, including battery main body, cooling device and external measuring circuit;Battery main body includes battery heat source component, shell cover, shell body, shell cover is installed on shell body;Battery heat source component is located in shell body, and heat insulation layer is filled between battery heat source component and shell body;Upper end of battery heat source component is connected with upper fixed part, lower end is connected with lower fixed part by thermoelectric power piece, and the upper end of heat conduction column is connected with lower fixed part, and the lower end is fixed with the inside of shell body.Electricity battery heat source component includes americium heat source core block, inner package shell, outer package shell, americium heat source core block is located in inner package shell, inner package shell includes inner package shell end cover, inner package shell body, and spring is filled between inner package shell end cover lower end and americium heat source core block, and helium is filled in inner package shell;Inner package shell is placed in lead shielding layer, lead shielding layer is placed in outer package shell, and outer package shell includes outer package shell body and outer package shell end plug.