ELECTRIC TRANSPORT HEATER Russian patent published in 2009 - IPC F24H3/04 

FIELD: heating systems.

SUBSTANCE: invention refers to heating equipment and air warming equipment as well as maintaining the temperatures inside electric transport compartment at the specified level. Heater consists of a body inside which there is a heating block placed in a housing insulated from the body, an air supply block, voltage divider of electric transport system, and series-connected temperature sensors of protection system. Heating block is made in the form of a number of electrically connected heating elements attached through insulator plates to holders. Air supply block is made in the form of DC motor connected with impeller and air flow shaper. Voltage divider is made in the form of a spiral element which is attached to air flow shaper and series-connected to motor armature winding. Temperature sensors of protection system are installed inside the housing of heating block from the side of air supply block. In one of the body walls there provided are inputs of high and low supply voltage.

EFFECT: reducing acoustic pressure up to 40-45 dBA at high electric safety, and increasing service life up to several tens of thousands of hours.

3 dwg, 6 cl