AIR HEATING DEVICE Russian patent published in 2008 - IPC F24H3/04 H05B3/32 

FIELD: heating systems.

SUBSTANCE: invention refers to electric heating equipment. Air heating device consists of a body (4) with holes (1) and (7) provided in inlet and outlet walls in the form of metal coarse-cell mesh, air supply block containing an electric motor (6), impeller (2) and air flow generator (3), and a heating block consisting of a number of electrically connected sections of spirals (13), the ends of which are fixed lengthwise on opposite insulators (12) located on the locks (11) fixed on orthogonal frames (5). Electric motor (6) is located with its rear end facing the outlet wall in central part of the space inside the body (4) owing to compact arrangement of spiral sections (13) along the periphery of the inner space - at the body walls (4) on the locks (11) coming out of angles of orthogonal frames (5) in the direction of the centre of the latter. Compact arrangement of spiral sections is performed by spatial separation thereof on the locks (11) with displacement of adjacent sections in the directions parallel to orthogonal frame sides with maximum angular deviation of about 10-15° therefrom.

EFFECT: reducing the dimensions and weight of the device, and ensuring specified technical parameters.

4 cl, 3 dwg