Huawei Technologies Co., Limited

Vadim Tsoi

Fredrik Ohlsson

Lei Li

Weifeng Hu

Hua Yang

Long Li

Chenglong Wang

Yuping Hong

Ying Dong

Haipeng Li

Feng Peng

Marcus Lundh

Dzmitry Kushner

Christoffer Jarpner

Yake Fang

Uno Henningsson

Reine Granstrom

Magnus Kallmark

Yu Ping Hong

Hai Peng Li

A heat spreader for transferring heat from an electronic heat source to a heat sink, a system for cooling an electronic heat source, and a method for manufacturing a heat spreader are provided. The heat spreader includes a set of separate channels which are coupled with each other by an upper coupler and a lower coupler such that a cooling fluid circulates in the set of separate channels via the upper coupler and the lower coupler in operation.

Heat spreader for transferring heat from an electronic heat source to a heat sink

An apparatus for transferring heat from a heat source to air, comprising a heat sink with a plurality of fins. A fin of the plurality of fins is configured as follows: the fin comprises a conduit arrangement for a heat-carrying fluid; in a boiling region of the fin, the conduit arrangement comprises a vapour guiding path; and in the boiling region, the conduit arrangement comprises one or more boiling chambers. Each of the one or more boiling chambers has an outer boundary. The respective boiling chamber is located within a chamber region defined by an imaginary quadrilateral having four sides and four vertices. By means of the arrangement and configuration of the boiling chambers and/or of the vapour guiding path, the heat transfer efficiency of the fin is improved.

Apparatus for transferring heat from a heat source to air

An apparatus for transferring heat from a heat source to air while the apparatus is connected to the heat source is provided. The apparatus has a heat sink comprising a heat sink base and a plurality of primary fins connected to the heat sink base. The apparatus includes a heat sink front. The heat sink base is configured to be thermally coupled to the heat source. Each primary fin of the plurality of primary fins has one or more conduits. The heat sink base includes a first chamber. The first chamber and the conduits together form a common space sealed off from the air surrounding the apparatus. The first chamber and the conduits together enclose a heat-carrying fluid in the common space formed by the first chamber and the conduits. A network access node for a wireless communication system is provided. The network access node comprises the above-described apparatus.

The invention relates to a heatsink for transferring heat from one or more electrical devices to a heat transfer medium. The heatsink includes a plurality of fins arranged on a frontside of the heatsink. The plurality of fins includes a first group of fins extending in a first planar direction and a second group of fins extending in a second planar direction angled in relation to the first planar direction. For example, the first group of fins may extend from the bottom to the top of the heatsink, while the second group of fins may extend from the first group of fins to the sides of the heatsink. In this way, the sides of the heatsink can be used as air outlets and the airflow through the heatsink can be increased.

Heatsink with increased air flow

A radio remote unit, including a unit body, and multiple heat dissipation fins that are disposed on a surface of the body, where an opening groove is disposed on the heat dissipation fin, and opening grooves on the multiple heat dissipation fins form a fan ventilation groove, where the fan ventilation groove is connected to ventilation channels between the heat dissipation fins, and a fan is disposed in a built-in manner in the fan ventilation groove. The fan ventilation groove formed by the opening grooves on the multiple heat dissipation fins is connected to the ventilation channels between the heat dissipation fins, and the fan is disposed, which implements that in a case in which a quantity of heat dissipation fins is unchanged, the fan performs air cooling on the radio remote unit, effectively improving a heat dissipation capability.

Radio remote unit and communications device

An embodiment of the present invention discloses a base station, including: a baseband unit, a radio remote unit, a power supply device, a signal transmission device, and a backup power supply device. The baseband unit and the radio remote unit are mounted on an antenna tower or a pole. At least one of the power supply device, the signal transmission device, or the backup power supply device is also mounted on the antenna tower or the pole.

Base station

An Electro Hydro Dynamic, EHD, thruster () comprising a first set of electrodes (), a second set of electrodes () and a supporting structure () for supporting the first set of electrodes () and the second set of electrodes (). The EHD thruster () is configured to generate airflow of ionized air for cooling a heat sink (). Further, the EHD thruster () is electrically isolated from the heat sink ().

Electro hydro dynamic cooling for heat sink

A heat spreading device includes sectioning forming a first chamber portion and a second chamber portion, a first plurality of conduits, and a second at least two conduits. The second at least two conduits interconnect the first chamber portion and the second chamber portion. The heat spreading device may also include cavities, a barrier, and fins.

Growing community of inventors

Kista, Sweden

Vadim Tsoi