579 results about "Forced air cooling" patented technology

The invention provides forced-air cooling to components mounted on circuit boards oriented in a side-to-side direction in a system. Airflow may enter and exit the system through the front and back (or vice-versa), rather than the sides of the system. In one embodiment, airflow entering the front of the system is re-directed in an upward direction, then split to form airflow branches traversing in a side-to-side direction. The airflow branches traverse across the surfaces of circuit boards, then are directed in an upward direction and out the back (or front) of the system. The airflow branches preferably move substantially the same volume of air per unit of time.

Embodiments of the invention provide thermal management systems for LED light fixtures. In one embodiment, an LED track light fixture includes a lighting assembly, a fixture housing mounted to the lighting assembly and having a plurality of apertures, and a mounting structure that affixes the fixture housing to a track. In this embodiment, the lighting assembly includes a heat sink, a reflector, at least one light emitting diode, and a synthetic jet actuator. In a second exemplary embodiment, a sealed, enclosed LED light fixture includes a lighting assembly, along with an enclosure and a fixture housing surrounding the lighting assembly. In this embodiment, the lighting assembly includes at least one light emitting diode, a thermoelectric cooler, and at least one heat sink. In some embodiments, a forced air cooling device may be located between the printed circuit board and the thermoelectric cooler.

A horticultural light fixture for reducing the temperature impact of the light source on growing plants, including a hollow sheet metal tube, having first and second round hollow ends and a cutaway portion on the underside open towards the plants with at least one lamp socket mounted within said metallic tube, locating the lamp over the cutaway portion, further including a reflector mounted within the metallic tube and extending out through the cutaway portion, constructed and arranged to deflect light from the lamp toward the plants, having a transparent portion fittingly attached to the reflector between the lamp and the plants being impermeable to the heated atmosphere while allowing light to pass through.

A system and method is provided for cooling a gaming machine. The cooling system includes an air flow assembly which draws fresh air from outside the gaming machine. The air flow assembly provides the fresh air to a set of ducts. The set of ducts channel the fresh air to one or more internal components of the gaming machine. The cooling system may also include an inlet duct to channel air from outside the machine to the air flow assembly and filters for cleaning the air entering the gaming machine.

In various embodiments of the invention, a unique construction for Light Emitting Diodes (LEDs) with at least one luminescent rod and extracting optical elements is used to generate a variety of high brightness light sources with different emission spectra. In an embodiment of the invention, forced air cooling is used to cool the luminescent rod. In an embodiment of the invention, totally internal reflected light can be redirected outward and refocused. In another embodiment of the invention, light emitted by the luminescent rod is out-coupled for use in a variety of applications. In various embodiments of the invention, a plurality of independent narrow band colors can be coaxially combined.

A computer system includes an enclosure, a forced air cooling system configured to create air flow within the enclosure, a printed circuit board and an air flow blockage member. The printed circuit board is within the enclosure and includes a plurality of connectors including a first connector and a second connector separated by a first space. The air flow blockage member is proximate the first space and is movable between at least a first open position and a second open position distinct from the first open position.

A foldable chair, which includes a forced air cooling system. The foldable chair includes a frame member. A flexible seat, which includes a meshed back rest suspends from the frame member. A fan bag, which has a pocket, is attached to the meshed back rest of the flexible seat. A fan is located at the bottom of the fan bag and is electrically disconnectable to a re-chargeable power source that is housed in a housing, which has an ON/OFF toggle switch so as to supply power to the fan.

A forced air cooling tower includes an upright casing, and elevated water distribution system disposed in an upper portion of the casing and one or more fans for drawing air through the tower. The tower also includes a catch basin for collecting the cooled air and a pump for circulating the cooled water through a condenser and back to the top of the tower and to the water distribution system. The cooling tower also includes a controller and a variable frequency device for regulating the flow of air through the tower. A first temperature sensor senses the temperature T1 of the hot process water delivered to the water distribution system and a second sensor senses the dry bulb temperature of the air leaving the tower Tdbt2. A third sensor senses the temperature of the cooled water leaving the tower. The controller such as a computer and variable frequency drive controls the speed of the fan to minimize the difference in T1 and Tdbt2. A submaster control prevents the fan speed from being further reduced when a predetermined T2 (temperature of the cooled water) is reached.

A high power low RPM direct current electric motor is disclosed whereby the high power output is achieved in one of two ways or both. In the first case, the need for cooling is reduced simultaneously along with an increase in the utilization of the magnetic field present in the motor permanent magnets. This is achieved by wrapping the electromagnet core with windings that are capable of demagnetizing the rotor permanent magnets under stall conditions. Interlocking motor circuitry is provided which prevents the full activation of these motor windings until motor RPM values reach a safe level. This increases motor power while decreasing resistive losses in electromagnet windings. In the second case, the rotary portion consists of a large diameter relatively flat rotor containing permanent magnets and having built in vanes for moving air over the electromagnet stator windings providing forced air cooling.

The invention relates to a data center machine room cooling system featuring cool air distribution according to needs, comprising an air-conditioning unit and a heat dissipation air channel. Cold air provided by a refrigerating unit is distributed to equipment cabinets through an air inlet header pipe and an air inlet adapter pipe according to cold energy the equipment cabinets need and then is distributed to servers according to the cold energy the servers in the equipment cabinet need through a cold air distribution box, so as to carry out forced air cooling on heated components. The cooling system optimizes airflow movement and realizes air distribution according to needs, thus being an efficient and energy-saving data center machine room cooling system heat dissipation solution.

The present invention relates to a seat or chair cooling apparatus. In an embodiment the seat cooling apparatus cools the back of a user without the need of forced air. The seat cooling apparatus includes an array of conduits held in place by a set of supports to form a heat exchanger. Heat from the contact surfaces is removed by free convection, an upward air movement due to density difference. When the seat cooling apparatus is in the preferred substantially vertical arrangement, the warm air exiting the conduits is replaced by cooler air entering the conduits. A seat securing attachment secures the heat exchanger components to a seat. The seat cooling apparatus shapes into the back of the user to provide comfort that is effective in cooling. The seat cooling apparatus can be light weight, portable, and occupies little space, can be quickly installed and removed, easily cleaned and is very low cost to manufacture. In another embodiment, the seat cooling apparatus is easily connected to a forced air cooling source to increase the cooling rate if desired by the user.

A backflow preventing check valve for use in a fan unit in a forced air cooling system includes a generally rectangular frame, a plurality of adjacent parallel pivot axes mounted in the frame, and a plurality of adjacent vanes that pivot around the axes between open and closed positions. The axes extend generally transverse to the direction of fluid flow through the valve, and each axis is offset from the center of gravity of its associated vane so that fluid flowing through the valve in an allowed direction moves the vanes toward the open position, and fluid flowing in a blocked direction moves the vanes toward the closed position. The axes are inclined at an angle (α) measured from a vertical reference, thereby causing the vanes to be urged by gravity to pivot towards the closed position.

Systems and methods for providing a dynamically modular processing unit. A modular processing unit is provided as a platform that is lightweight, compact, and is configured to be selectively used alone or oriented with one or more additional processing units in an enterprise. In some implementations, a modular processing unit includes a non-peripheral based encasement, a cooling process (e.g., a thermodynamic convection cooling process, a forced air cooling process, and/or a liquid cooling process), an optimized circuit board configuration, optimized processing and memory ratios, and a dynamic back plane that provides increased flexibility and support to peripherals and applications. The modular processing unit is customizable and may be employed in association with all types of computer enterprises. The platform allows for a plethora of modifications that may be made with minimal impact to the dynamically modular unit, thereby enhancing the usefulness of the platform across all type of application.

RF excited gas laser consists of a laser tube having external surfaces; a power supply compartment having elongated external fins and a pair of endplates on its opposite ends and wherein laser tube is placed between and is flexibly attached to the endplates; a sheet-metal cover mounted to the endplates and to power supply compartment and forming a laser assembly and having at least one pair of intake openings and at least one pair of exhaust openings for the cooling air to flow through the laser assembly by entering the laser assembly through the intake openings and flowing over power supply external fins and over laser tube external surfaces and then exiting through the exhaust openings. Present invention is characterized by lower cost and more efficient forced air cooling laser tube and RF power supply.

An electrical box for mining apparatus and a mining apparatus are provided. The electrical box includes a housing having an explosion proof enclosure and a cooling duct. An electrical circuit is held in the enclosure. A fan is provided for forcing air through the cooling duct.

A forced-air-cooled engine having a main blow-out opening provided to a back plate of a cooling fan cover at a position facing a cylinder part for blowing out cooling air for cooling a cylinder part and a secondary blow-out opening provided to the back plate at a position opposite to the main blow-out opening in regard to the crankshaft center for cooling a part of a crankcase part, wherein a cooling air guide cover is equipped which is composed of a cylinder air-guide cover part which guides air blown out from the main blow-out opening to flow to cool the cylinder part and cylinder head, and a top cover part which guides air blown out from the secondary blow-out opening to flow along a side face of the crankcase part to cool there and then flow into midstream of the cooling air flow blown out from the main blow-out opening and cooling the cylinder part and cylinder head.

This device incorporates an array of light emitting diodes (LED) of several specific wavelengths that are used to provide therapy to visible and invisible living tissue or skin disorders that react to various wavelengths of light. Furthermore the device uses a combination of high level of perforation metal core circuit boards, heat transfer pads, heat sinks and forced air cooling and electronic thermal management to achieve continuous high intensity light output to therapy areas along with long LED life. The invention is using replaceable LED modules enabling device maintenance by user operators not trained as maintenance technicians.

An air cooled switching unit for a motor drive includes a forced air cooling chamber and a convective cooling chamber separate from the forced air cooling chamber. An exhaust port of the forced cooling chamber is configured to direct exhaust air across an outlet of the convective cooling chamber to induce an increased air flow through the convective cooling chamber thereby increasing the cooling capacity of the convective cooling chamber.

A liquid circulation type cooling system includes a circulating pump for circulating a liquid, a heat exchanger disposed in a heat radiation space and for radiating heat outside the system. The heat exchanger contains a core unit, a liquid reservoir for storing the liquid positioned on the upstream side of the core unit and having a liquid opening, another liquid reservoir for storing the liquid and positioned on the downstream side of the core unit, the other liquid reservoir having a liquid opening, a heat-receiving member, a piping, and a fan for supplying air to the heat exchanger to effect forced air-cooling.