Patent ID: 11956926
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC H  F | IPC F  H

Claim 0:
1. An outdoor unit comprising:
a housing having a front surface formed with an outlet and a back surface facing the front surface, an airflow flowing through the outlet;
a heat exchanger provided along the back surface in the housing;
a blower provided in the housing, the blower causing air drawn from outside of the housing and passing through the heat exchanger to flow toward the outlet;
a compressor provided in the housing;
a partition plate partitioning an interior of the housing into a compressor chamber in which the compressor is accommodated and a blower chamber in which the blower and the heat exchanger are accommodated;
a substrate horizontally placed in the housing, a plurality of electric components including a heating electric component being mounted on the substrate;
an electric component box accommodating the substrate, one part of an undersurface of the electric component box being in contact with the partition plate; and
a heat dissipator provided in the blower chamber, the heat dissipator dissipating, due to the airflow, heat generated by the heating electric component, wherein
the heat dissipator is provided on the undersurface of the electric component box and in the blower chamber, the heat dissipator being separated from a side surface of the partition plate,
the heat dissipator comprises
a base provided on the undersurface of the electric component box and in the blower chamber, the heat dissipator being separated from a side surface of the partition plate; and
a plurality of fins, each of the fins having a heat dissipation surface, the heat dissipation surface of each of the fins is parallel to the back surface or is angled at greater than 0 degrees and less than 90 degrees relative to the back surface in top view, and

the heating electric component is placed in such a manner as to be accommodated within an area of a flat surface of the base.