초록 ▼

This invention relates to a battery charger which supplementally charges a secondary battery such as a battery and so forth in an automobile with use of a solar cell in which a diffusion-blocking layer is formed between a semiconductor and a reverse electrode for the purpose of preventing deteriorat

This invention relates to a battery charger which supplementally charges a secondary battery such as a battery and so forth in an automobile with use of a solar cell in which a diffusion-blocking layer is formed between a semiconductor and a reverse electrode for the purpose of preventing deterioration of a semiconductor layer, and in which electric potential of the secondary battery can be measured and displayed, and in which the solar cell can be securely provided in a compartment of an automobile in such a manner that the solar cell always faces sunbeams, and which can be freely attached and detached.

대표청구항 ▼

A battery charger for automobiles comprising a case made of thin plate having a surface and an opening on a portion of the surface top thereof and said case also having a hollow portion therein, a solar cell consisting of a tansparent electrode, an amorphous silicon semiconductor layer, a metal diff

A battery charger for automobiles comprising a case made of thin plate having a surface and an opening on a portion of the surface top thereof and said case also having a hollow portion therein, a solar cell consisting of a tansparent electrode, an amorphous silicon semiconductor layer, a metal diffusion blocking layer and a reverse electrode, said solar cell being accommodated by said case in such a manner that a surface of the cell is located in said opening, a wiring material provided with a plug at one end thereof to couple said wiring material with a cigarette lighter socket and to take out an electromotive force of said solar cell, a circuit provided in said case for measuring an electric potential of a secondary battery being charged by said solar cell, and a display device displaying said electric potential of said secondary battery charged by said circuit.