Lenovo (singapore) Pte. Ltd.

Hao-Yu Wang

Akinori Uchino

Atsushi Ohyama

Hajime Yoshizawa

Shusaku Tomizawa

Qianyi Lu

Atsunobu Nakamura

A method of operating a fan of a computing system includes: measuring a temperature of a subcomponent of the computing system; and comparing the temperature to a temperature threshold. When the temperature is greater or equal to than the temperature threshold, the fan is controlled based on a predetermined table of fan level settings. When the temperature less than the temperature threshold, a fan speed of the fan is measured. When the fan speed is not equal to zero, the method returns to the measurement of the temperature. When the fan speed is equal to zero, the fan is controlled based on a first power determination. The first power determination includes: measuring a system power level; and comparing the system power level to a trigger threshold. When the system power level is greater than the trigger threshold, the fan is activated to a predetermined setting.

Power system based fan control method

An electronic apparatus includes: a chassis; a heating element; a cooling module having a fan, a heat sink, and a heat transport device, the cooling module being configured to cool the heating element. The heat sink includes: a base plate; a plurality of fins standing from the base plate and placed with a gap between the fins to define an air channel through which air from the air outlet flows; and an inclined plate dividing the air channel in two stages in the standing direction of the fins and being gradually inclined from upstream to downstream of the air channel.

Electronic apparatus, cooling module, and heat sink

A cooling module includes: a fan having a fan housing with an intake port and an exhaust port; a fin that faces the exhaust port of the fan; a heat pipe connected to a surface of the fin; and a plate-shaped vapor chamber having a first surface and a second surface, the heat pipe being connected to the first surface while straddling one edge of the vapor chamber, the second surface at the one edge being connected to the surface of the fin to be parallel with the heat pipe, so that the one edge is disposed between the heat pipe and the fin.

Cooling module and electronic apparatus

A heat sink faces an exhaust port of a blower fan in use, and includes: a first plate-shaped portion; a second plate-shaped portion disposed in parallel with the first plate-shaped portion having a gap therebetween; a plurality of fins that stand up between the first plate-shaped portion and the second plate-shaped portion and are disposed side by side with a gap therebetween to define an air flow path between the fins, through which air flows from the exhaust port; and a protrusion that is disposed at a part of each fin including a center of the upright height, and protrudes into the air flow path.

Growing community of inventors

YOKOHAMA, Japan

Hao-Yu Wang