Luftmengeneinstellvorrichtung für eine Klimaanlage

Details

Veröffentlichungs-Nr.

EP2525102

Aktenzeichen

EP12168111

Anmeldetag

15. Mai 2012

Veröffentlichung

14. Januar 2015

Rechtsraum

EP

IPC

F04D27/00F24F11/02

Abstract

There is provided an air volume adjustment device for an air conditioner that can rapidly and accurately adjust an air volume by determining an external static pressure by the unit itself so that the rated air volume can be achieved with the external static pressure. An air volume adjustment device for an air conditioner of a type in which a heat exchanger and a DC fan motor (12) are housed in a unit body and air whose temperature is controlled in a heat exchanger is blown into a room through an air outlet duct connected to the unit body, the air volume adjustment device comprising: an air volume adjustment circuit (25) configured to: drive the DC fan motor (12) at two predefined rotational speeds; read, while driving, a motor output value output from a motor control circuit side (22) to the DC fan motor (12); determine an external static pressure from a difference between motor output values at the two rotational speeds; and set a rotational speed of the DC fan motor (12) so that a rated air volume is achieved based on the external static pressure and from a rotational speed table for each static pressure setting.

Anmelder

Firma

Mitsubishi Heavy Industries

Land

🇯🇵 Japan

Fachgebiete