| 摘要 |
<p>A frost control system for preventing the accumulation of frost on components of a freezer door assembly (10) is disclosed. The system comprises a movable door (12) disposed between a cold space and a warm space, and a header assembly (20). The header assembly (20) comprises an air mover (40) and an air inlet (54) adapted for drawing air from the cold space to an inlet (52) of the air mover. A conduit (58, 60) is provided for conducting air from an outlet of the air mover to a region of the warm space proximate to the door, and a thermostatically-controlled heater is disposed within the conduit. The conduit includes a heated air exhaust vent (72). Also provided is control circuitry for managing the operation of the heater and air mover.</p> |
