A synthetic jet cooling device (1) for cooling an object (5), comprising: a transducer (10) adapted to generate velocity waves, and an enclosure (4) arranged to receive the velocity waves via an actuated aperture (8). The enclosure (4) is sufficiently large to generate, at the actuated aperture (8), an internal synthetic jet inside the enclosure (4). Furthermore, the enclosure (4) is arranged to contain the object (5), thereby enabling cooling of the object (5) by the internal synthetic jet. The arrangement typically permits multifunctional use of an existing enclosure, containing the object to be cooled, both for its original purpose (e.g. a reflector in a lamp, or a LED backlight module) and as an enclosure generating internal synthetic jets, why the cooling device typically requires virtually no extra space and weight, and can be provided at a low cost.

A heat dissipating system including a casing body, a heat source and a piezoelectric fan is provided. The casing body includes an upper casing and a bottom case, wherein at least one of the upper casing and the bottom casing includes at least one air inlet. The heat source and the piezoelectric fan are both disposed in the casing body. The piezoelectric fan has an opening facing the heat source while the air inlet is adjacent to the opening. Air is adsorbed into the opening through the air inlet and is exhausted out towards a direction of the heat source by the piezoelectric fan.

A heat dissipating system including a casing body, a heat source and a piezoelectric fan is provided. The casing body includes an upper casing and a bottom case, wherein at least one of the upper casing and the bottom casing includes at least one air inlet. The heat source and the piezoelectric fan are both disposed in the casing body. The piezoelectric fan has an opening facing the heat source while the air inlet is adjacent to the opening. Air is adsorbed into the opening through the air inlet and is exhausted out towards a direction of the heat source by the piezoelectric fan.

The present disclosure relates to a heat sink assembly and control method, and an electronic device and manufacturing method. The heat sink assembly includes: a vibrating plate including a magnetic material; a vibrating film, one end of which is connected with the vibrating plate; a driving device having an electromagnet, which is arranged opposite to the vibrating plate; a control circuit which is connected with the driving device and is configured for transmitting to the driving device a control signal for controlling the electromagnet to be energized and de-energized. The electromagnet generates a magnetic field that drives the vibrating plate to vibrate when the electromagnet is alternately switched between an energized state and a de-energized state. The vibrating film vibrates with the vibration of the vibrating plate.

A fluid pump (10) for pumping fluids is described. The fluid pump uses actuators like loudspeakers or piezoelectric elements that are arranged in a fluid chamber side by side to each other to generate a fluid flow by driving the actuators with phase shifted signals, so that fluid is sucked into an inlet end of the fluid chamber and pushed out of an outlet end of the fluid chamber.

A fluid pump (10) for pumping fluids is described. The fluid pump uses actuators like loudspeakers or piezoelectric elements that are arranged in a fluid chamber side by side to each other to generate a fluid flow by driving the actuators with phase shifted signals, so that fluid is sucked into an inlet end of the fluid chamber and pushed out of an outlet end of the fluid chamber.

A fluidic device may include a vertical fluid dispensing volume having a side outlet, a fluid channel connected to the vertical fluid dispensing volume below the side outlet and a fluid actuator asymmetrically located between ends of the fluid channel to form an inertial pump to vertically pump fluid within the channel to the side outlet.

A fluidic device may include a vertical fluid dispensing volume having a side outlet, a fluid channel connected to the vertical fluid dispensing volume below the side outlet and a fluid actuator asymmetrically located between ends of the fluid channel to form an inertial pump to vertically pump fluid within the channel to the side outlet.

An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.

An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.