Surface heating device for use with piece of clothing, has electrically and thermally conductive sheet and bodies with respective resistances, where resistance of bodies is smaller than resistance of sheet

摘要

The device has an electrically and thermally conductive sheet (10) with a preset resistance, and a number of electrically and thermally conductive bodies (20) with another preset resistance, where the resistance of the bodies is smaller than the resistance of the sheet. The bodies include a common contact surface contacting with the sheet. Two current supply wires (30) are connected with the bodies, where heat is produced by current, which flows over the current supply wires through the bodies and the sheet.