HEATING UNIT FOR VEHICLE ELECTRIC AIR HEATER (VERSIONS) Russian patent published in 2014 - IPC F24H3/04 

FIELD: electricity.

SUBSTANCE: heating unit for a vehicle electric air heater comprises at least one frame, the inner space of which is divided into two sections by an intermediate plate, having two rows of openings for connecting helical heating elements. The lateral sides of the frame form a T-shaped connection with the top and bottom peripheral plates. The top and bottom peripheral plates each have a row of openings for connecting helical heating elements and are turned by their wide sides at right angles to the intermediate plate. Fastening on the peripheral top and bottom plates forms Λ-shaped figures, the vertices of which are situated on the top and bottom peripheral plates, and the diverging parts face the side of the intermediate plate. According to the second version, the heating element further includes intermediate plates having two rows of opening each. The diverging parts of the Λ-shaped figures are fastened on neighbouring intermediate plates.

EFFECT: high power of the device and efficiency thereof without reducing service life.

8 cl, 4 dwg