US 11,788,738 B2
Outdoor unit and air conditioner
Takuya Shimomugi, Tokyo (JP); Keisuke Mori, Tokyo (JP); Koichi Arisawa, Tokyo (JP); Satoru Ichiki, Tokyo (JP); Keisuke Uemura, Tokyo (JP); and Kenji Iwazaki, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 17/267,669
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Aug. 29, 2018, PCT No. PCT/JP2018/032001
§ 371(c)(1), (2) Date Feb. 10, 2021,
PCT Pub. No. WO2020/044473, PCT Pub. Date Mar. 5, 2020.
Prior Publication US 2021/0156574 A1, May 27, 2021
Int. Cl. F24F 1/22 (2011.01); F24F 1/24 (2011.01); F24F 1/16 (2011.01); F24F 13/20 (2006.01)
CPC F24F 1/22 (2013.01) [F24F 1/24 (2013.01); F24F 1/16 (2013.01); F24F 2013/207 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An outdoor unit comprising:
a housing that includes a front panel having an outlet for an airflow, a back panel facing the front panel, a left side panel, a right side panel facing the left side panel, a bottom panel, and a top panel facing the bottom panel;
a bell mouth that has an annular shape, is provided on the front panel, and projects from a rim of a circular opening forming the outlet;
a control substrate that is provided in the housing and provided with an electric component; and
a heat sink that is placed at a position in the housing not overlapping the circular opening when viewed from a front of the front panel, and dissipates heat generated by the electric component, wherein
a windward end surface and a leeward end surface of the heat sink are, when viewed from above the top panel, placed in a region between a plane and the back panel,
the plane including an end of the bell mouth on a side of the back panel and being parallel to an inner surface of the front panel, wherein
the control substrate is entirely housed in an electric component box, the electric component box is provided over a partition board that partitions a space in the housing and the electric component box is provided between an upper end of the partition board and the top panel, and an end surface of the electric component box facing the back panel is provided between the back panel and the plane.