Title:
AIR CONDITIONING DEVICE
Document Type and Number:
Japanese Patent JP2019104262
Kind Code:
A
Abstract:
To provide an air conditioning device which brings a blowing air amount of a fan to a target blowing air amount even when pressure loss in an air flow passage changes.SOLUTION: In the case where pressure loss in an air flow passage is determined to have changed from a predetermined value, a control circuit acquires a target rotational frequency Nx on the basis of blowing air amount rotational frequency information stored in a memory, a target current value, and an actual current value (step S140). By bringing the rotational frequency of a fan motor close to the target rotational frequency Nx by controlling three-phase AC currents flowing in the fan motor from an inverter circuit, the control circuit brings the blowing air amount of a fan close to the target air blowing amount (step S100).SELECTED DRAWING: Figure 3
Inventors:
HARA FUMIYA
Application Number:
JP2017236242A
Publication Date:
June 27, 2019
Filing Date:
December 08, 2017
Export Citation:
Assignee:
DENSO CORP
International Classes:
B60H1/32; B60H3/06
Domestic Patent References:
| JP2002098088A | 2002-04-05 | |||
| JPH054509A | 1993-01-14 | |||
| JPS59199318A | 1984-11-12 |
Foreign References:
| WO2011092756A1 | 2011-08-04 |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office