公开(公告)号：US12298055B2

公开(公告)日：2025-05-13

申请号：US17914524

申请日：2021-03-26

Applicant: LG Electronics Inc.

Inventor： Kyungroc Moon ,  Jaekeun Lee ,  Youngmin Park ,  Jongpil Park

IPC: F25D21/14

Abstract: A refrigerator includes a grille fan assembly provided behind a storage space and shielding an evaporator, and a machine room independent of the storage space. The grille fan assembly includes a case with an open front, a fan configured to force an air flow between the storage space and the heat exchange space, a grille panel shielding the open front of the case and having a discharge port for discharging cold air to the storage space and a suction port for suctioning air from the storage space, a partition dividing of the case into a cold air flow space and a heated air flow space, an exhaust member extending from the case to the machine room and communicating an inside of the case with of the machine room, and a machine room exhaust damper configured to open and close the exhaust member.

公开(公告)号：US20140314575A1

公开(公告)日：2014-10-23

申请号：US14145180

申请日：2013-12-31

Applicant: LG Electronics Inc.

Inventor： Namjoon Cho ,  Dongkeun Yang ,  Youngmin Park

IPC: F04D29/22

CPC classification number: F04D29/281 ,  F04D29/282 ,  F04D29/30 ,  F04D29/666 ,  F04D29/681 ,  F05D2240/304

Abstract: Provided is a turbo fan. The turbo fan includes a main plate rotating by a fan motor providing power and a plurality of blades having one ends connected to the main plate, the plurality of blades being disposed along a circumferential direction on the main plate. Each of the plurality of blades includes a first curved part curved in one direction with respect to an extension part and a second curved part curved in the other direction with respect to the extension part. A plurality of projections protruding in one direction from the one end of the blade and a plurality of grooves protruding in the other direction are alternately disposed on the first and second curved parts. Alternatively, the turbo fan includes a main plate rotating by a fan motor providing power, a rotation shaft providing a rotation center of the main plate, a plurality of blades having a blade front end disposed adjacent to the rotation shaft and a blade rear end disposed spaced from the rotation shaft, the plurality of blades being disposed in a circumferential direction on the main plate, and an extension part defined as a virtual line straightly extending from an upper portion of the blade rear end to a lower portion of the blade rear end. Each of the blades includes a first curved part curved in one direction with respect to the extension part, a second curved part curved in the other direction with respect to the extension part, a first flow part defined as a space between the extension part and the first curved part, and a second flow part defined as a space between the extension part and the second curved part.

Abstract translation: 提供涡轮风扇。 涡轮风扇包括由提供动力的风扇电动机旋转的主板和具有连接到主板的一端的多个叶片，多个叶片沿主体板的圆周方向设置。 多个叶片中的每一个包括相对于延伸部在一个方向上弯曲的第一弯曲部分和相对于延伸部分沿另一个方向弯曲的第二弯曲部分。 从刀片的一端向一个方向突出的多个突起和沿另一个方向突出的多个槽交替设置在第一和第二弯曲部分上。 或者，涡轮风扇包括由提供动力的风扇电动机旋转的主板，提供主板的旋转中心的旋转轴，具有邻近旋转轴设置的叶片前端的多个叶片，以及设置在叶片后端的多个叶片 与旋转轴间隔开，多个叶片在主板上沿圆周方向设置，并且延伸部被限定为从叶片后端的上部到叶片后端的下部直线地延伸的虚拟线 。 每个叶片包括相对于延伸部分在一个方向上弯曲的第一弯曲部分，相对于延伸部分在另一个方向上弯曲的第二弯曲部分，被定义为延伸部分和延伸部分之间的空间的第一流动部分 第一弯曲部分和被限定为延伸部分和第二弯曲部分之间的空间的第二流动部分。