Device arranged on centrifugal air duct for automatically switching between cold and warm air

• Main Author: HU JINGLE
• Format: Patent
• Language: Chinese; English
• Published: 30.12.2009
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The invention discloses a device arranged on a centrifugal air duct for automatically switching between cold and warm air. The device comprises a net-shaped electric heating rack; wherein, electric heating sheets are arranged on the net-shaped electric heating rack; the net-shaped electric heating rack is pivotally arranged in a concave-type air-outlet cavity; and a switching motor for driving a pivot to rotate is arranged on the pivot at one side of the net-shaped electric heating rack. Accordingly, when the net-shaped electric heating rack is vertically located in the concave-type air-outlet cavity, the air is directly discharged from an air outlet at the upper part of a front housing without passing through the net-shaped electric heating rack, thus producing cold air; and when the net-shaped electric heating rack is driven by the motor to rotate and tilt until the air outlet of the concave-type air-outlet cavity is blocked, the air passes through the net-shaped electric heating rack and the passing air is