公开(公告)号：US20220381454A1

公开(公告)日：2022-12-01

申请号：US17826826

申请日：2022-05-27

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jian LI ,  Biao HU ,  Zhiyao LU

IPC: F24F5/00 ,  F24F13/30 ,  F24F13/28 ,  F24F13/20 ,  H05K7/20

Abstract: This application provides an evaporative cooling unit. The evaporative cooling unit includes an outdoor channel, an indoor channel, and a heat exchange apparatus, and, further includes: an air filter and a defrosting apparatus that are disposed in the outdoor channel. The defrosting apparatus is located on a side that is of the air filter and that is close to an air intake vent of the outdoor channel. The defrosting apparatus includes a heat exchange film, and the heat exchange film has a first channel and a second channel that are arranged crosswise. The first channel communicates with the air intake vent of the outdoor channel, the second channel communicates with the indoor channel, and the first channel communicates with the second channel. The defrosting apparatus further includes a switch valve, and the switch valve is configured to control the second channel to communicate with the indoor channel.

公开(公告)号：US20230049932A1

公开(公告)日：2023-02-16

申请号：US17881777

申请日：2022-08-05

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jian LI ,  Shuang WANG ,  Langlang LI

IPC: F04D29/042 ,  F04D25/06 ,  F04D29/043 ,  F04D29/046 ,  F04D29/42

Abstract: Embodiments of this application provide a centrifugal pump. The centrifugal pump includes a pump casing and a first drive mechanism, a second drive mechanism, a pump shaft, and an impeller that are disposed in the pump casing. The pump casing includes a first chamber and a second chamber that are connected. An axis of the pump shaft coincides with axes of the first chamber and the second chamber. An inner diameter of the second chamber is greater than that of the first chamber. The impeller is connected to an end of the pump shaft. The first drive mechanism and the second drive mechanism are connected to the pump shaft and located on a side, away from the impeller, of the pump shaft. The first drive mechanism is configured to drive the pump shaft to rotate.

公开(公告)号：US20220240423A1

公开(公告)日：2022-07-28

申请号：US17582919

申请日：2022-01-24

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jian LI ,  Mingming PU ,  Zonghao YANG

IPC: H05K7/20

Abstract: This application provides a cooling system, including a heat exchanger, a cooling supplement component, a bypass vent valve, and a controller. The heat exchanger includes an air intake vent A and an air exhaust vent B that are used for outdoor fresh air entry and discharge, and an air intake vent C and an air exhaust vent D that are used for indoor return air entry and discharge. The cooling supplement component includes a condenser and an evaporator, the condenser is connected to the air exhaust vent B by using an exhaust air pipe, and the evaporator is connected to the air exhaust vent D. The bypass vent valve is disposed on the exhaust air pipe, and the bypass vent valve communicates with outdoor air. The bypass vent valve is connected to the controller, and the controller is configured to control the bypass vent valve.