Abstract: Provided is a cooling structure, including: a heat sink to be mounted to a heat generator; and a duct, which is mounted to the heat sink, and is configured to guide an air flow flowing around the heat sink to the heat sink, wherein the heat sink has an air flow passage configured to allow the air flow to pass through the air flow passage, wherein one end side of the duct is to be mounted to an upstream side of the air flow passage, and wherein another end side of the duct is to be extended from an upstream end portion of the air flow passage to an upstream side of the air flow. With this, the flow rate of the air flow passing through the air flow passage of the heat sink can be increased, and the cooling efficiency of the heat sink can be improved.

Abstract: In an outdoor unit for an air-conditioning apparatus, an upper end of an upper anchoring portion of a fan guard is bent toward a casing and then formed upward, a lower end of a lower anchoring portion is bent toward the casing, a lower anchoring distal end portion that is a distal end-side portion of the lower anchoring portion is bent such that a distal end is oriented downward, a front panel includes an upper temporary fixing groove in which the upper anchoring portion is inserted and that restricts movement of the upper anchoring portion in a right and left direction and a lower temporary fixing hole in which the lower anchoring portion is inserted and that restricts movement of the lower anchoring portion in a forward direction and in a downward direction, and the upper temporary fixing groove and the upper anchoring portion are covered with a top panel.