Indoor unit of air conditioner

Abstract

Abstract PURPOSE: To provide uniform air suction distribution, to improve air suction efficiency and to lower noise, by employing two centrifugal fans in side-by-side relation and for rotation in opposite directions and communicating the space between fans at the lower part of the casing with fan outlet. CONSTITUTION: An air intake 2 is provided on the front side of the body of an indoor unit 1, and a discharge outlet 3 is installed on the bottom. An indoor side heatexchanger 4 is provided on the front side of the air intake, and a drain pan 5 is installed on the bottom. And inside of the main 1 is is provided with a pair of backward-vane-equipped centrifugal fans 7 attached to rotary shafts of fanmotors 6, and these fans are to be designed capable of turing in the opposite directions such as outward turning. Further, top-half outside surface of the centrifugal fans 7 are provided with a fan casing 8, and the bottom half of the fans are provided with a common through passage stretching all the way to the discharge outlet 3. And the middle section of the fan casing 8, that is, wind-in section of the centrifugal fans 7, is provided with a nose 9 sticking out between the fans, and a bell mouth 10 is provided on the front side. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Tomoshi Higuchi
• 👤 Junichi Mukaikubo
• 👤 Chikau Suma

Bibliographic Details