ELECTRIC HEATER OF FLUID MEDIUM Russian patent published in 1994 - IPC

FIELD: electrical engineering. SUBSTANCE: electric heater of fluid medium has frame 1 with slots 3 and heating element manufactured in the form of multiply bent metal strip 2 with bends having shape of triangles. Strip is fixed with its even bends in slots 3 made in frame 1. Distance between outer edges of each slot 3 exceeds doubled thickness of strip 2 and distance between walls of each slot 3 at least in one section distant from outer edges exceeds that between outer edges of slot. Slot house even bends of strip 2 and metal fixing members 4 produced for tightening with them of corresponding section of strip 2 to walls of slot 3 which provides for electric shorting of sections of strip 2 arranged in slots. EFFECT: expanded application field, simplified design, improved reliability. 1 dwg