Samsung Electronics Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Ntn Corporation

Fg Innovation Company Limited

Nippon Paper Industries Co., Ltd.

Shikoku Kakoki Co., Ltd.

Sato Seiji

Suguru Nakagawa

Hyun Young Kim

Sang Mu Lee

Gotoh Jungo

Sora Hiroshi

Furukawa Tasuku

Nakamura Osamu

Sase Kazuhiko

Hamaguchi Yasuhiro

Yamada Shohei

Morikawa Yasuhiro

Tanaka Tadahisa

Miyagawa Shigekazu

Takano Takehiro

Disclosed are a heat exchanger and an air conditioner including heat transfer tubes configured to guide a refrigerant, and a plurality of fins installed through which the heat transfer tubes penetrate and arranged to be spaced apart from each other in a second direction perpendicular to a first direction such that air passes through the fins in the first direction, wherein the plurality of fins each includes a plurality of inclined portions connected to each other in a zigzag form and inclined with respect to the first direction, and a plurality of louvers formed by being bent to form an angle with the inclined portions after portions of the plurality of inclined portions are cut, wherein a width of each of the plurality of louvers in the first direction after being bent is equal to or less than a width of the louvers in the first direction before being bent.

Heat exchanger and air conditioner having the same

A propeller fan may strongly draw the flow toward the inner circumferential side and greatly improve the pressure efficiency by degrading the tendency of the flow near the pressure surface to be inclined toward the outer circumferential side at the trailing edge of the blade. The blade is provided with a recessed portion raised toward a suction surface at a central portion of a trailing edge of the blade in a radial direction such that the recessed portion is open at least on a pressure surface of the blade, the recessed portion extending from the trailing edge toward a leading edge of the blade, and a cross section of the recessed portion taken in a radial direction is provided with a pair of lateral portions rising at a predetermined angle with respect to the suction surface and facing each other. The span-wise width of the recessed portion between the lateral portions increases as the recessed portion extends from an upstream side to a downstream side.

Propeller fan

Growing community of inventors

Kanagawa, Japan

Sato Seiji