Title:
天井埋込み型空気調和機
Document Type and Number:
Japanese Patent JP7278710
Kind Code:
B2
Abstract:
In order to reduce noise generated by air sucked in or blown out by a blower, this ceiling-cassette air conditioner comprises: a heat exchanger (7); a blower (6) that is arranged on the inside with respect to the heat exchanger (7), and that has a tubular shroud (25) the diameter of which increases toward the outside; a bell mouth (12) arranged below the shroud (25) and on the suction side of the blower (6); and a drain pan (10), in which is formed a recessed drain groove (18) in which a lower portion of the heat exchanger (7) is accommodated. The ratio of a second gap B between the discharge-side end of the shroud (25) and an inner-peripheral wall part (18a) on the inside of the drain groove 18 relative to the heat exchanger (7) to a first gap A between the upper end of the bell mouth (12) and the suction-side end of the shroud (25) is B/A ≤ 3 or 10 ≤ B/A.
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Inventors:
Masakazu Ito
Application Number:
JP2018013680A
Publication Date:
May 22, 2023
Filing Date:
January 30, 2018
Export Citation:
Assignee:
Mitsubishi Heavy Industries Thermal Systems, Ltd.
International Classes:
F24F1/0007; F24F1/0022; F24F13/22
Domestic Patent References:
| JP2013108684A | ||||
| JP20009327A | ||||
| JP2010138700A |
Foreign References:
| WO2017006467A1 |
Attorney, Agent or Firm:
Takaharu Fujita
Takaori Mitoma
Miki Kawakami
Daisuke Nagata
Takaori Mitoma
Miki Kawakami
Daisuke Nagata