7407 results about "Cooling efficiency" patented technology

A tray 15 for a dry etching apparatus 1 has substrate accommodation holes 19A to 19D penetrating thickness direction and a substrate support portion 21 supporting an outer peripheral edge portion of a lower surface 2a of a substrate 2. A dielectric plate 23 has a tray support surface 28 supporting a lower surface of the tray 15, substrate placement portions 29A through 29D inserted from a lower surface side of the tray 15 into the substrate accommodation holes 19A through 19D and having a substrate placement surface 31 at its upper end surface for placing the substrate 2. A dc voltage applying mechanism 43 applies a dc voltage to an electrostatic attraction electrode 40. A heat conduction gas supply mechanism 45 supplies a heat conduction gas between the substrate 2 and substrate placement surface 31. The substrate 2 can be retained on the substrate placement surface 31 with high degree of adhesion. This results in that the cooling efficiency of the substrate 2 is improved and processing is uniformed at the entire region of the substrate surface including the vicinity of the outer peripheral edge.

A cooling system and method employing separation chutes and baffles is disclosed. The separation chutes separate the cooled air descending from a heat exchanger positioned above heat-generating equipment in an equipment room from heated air ascending from the heat-generating equipment. Separation of the airflows reduces turbulence and increases cooling efficiencies. The separation chutes are made of a variety of materials, both rigid and flexible, for a variety of applications.

A non-linear fin heat sink is provided for dissipating/removing heat uniformly from a device, where the heat generation is non-uniform over that device, while also providing a small and relatively lightweight heat sink. The heat sink has extended surface protrusions that are optimally shaped in recognition of convective heat transfer, conductive heat transfer, and flow resistance allowing the heat sink to offset the temperature rise of a coolant media and provide enhanced cooling for the coolant temperature, deliver optimized cooling efficiency per the local physical properties of the coolant media, be used with a fluid for effectuating heat transfer; either liquid coolant, gas coolant or a combination thereof. Furthermore the heat sink features turbulence enhancement of the coolant stream by a pin array through which coolant stream passes, such fin array featuring a non-linear shape, spacing, and height pattern to provide optimal cooling while simultaneously reducing volume and flow resistance.

A method and system for cooling a heat source are presented. The system includes a fluid heat exchanger, a pump, a thermoelectric device having a cooling portion and a heating portion, and a heat rejector configured to be in thermal contact with at least a portion of the heating portion of the thermoelectric device. The pump is coupled with the fluid heat exchanger and configured to pass a fluid therethrough. The thermoelectric device is configured along with the heat exchanger in a cooling system to enhance the cooling efficiency of the system.

An LED lighting device has high cooling efficiency and long life with a plurality of high-intensity LEDs mounted thereto. The LED lighting device is composed of a light emission part provided with a plurality of LEDs and a heat radiator for the LEDs, a power source part generating a current to be supplied to the LEDs from a commercial power source, and an air circulation part for circulating ambient air. The light emission part and the power source part are thermally separated by the air circulation part. The light emission part is provided with an annular heat radiation base having a hole formed at a central portion thereof and a substrate attaching face formed around the hole, and an LED substrate which is attached to the substrate attaching face and on which a plurality of LED chips are mounted. The heat radiation base has heat radiation fins as the heat radiator which are formed on an outer periphery of the heat radiation base and on an inner periphery of the hole. By the presence of the air circulating part, little heat generated from the power source part is transmitted to the light emission part. Therefore, it is possible to accomplish desired designing of heat radiation of the light emission part concerned with intensity and life of an LED, which is critical to performance of an LED lighting device.

A cooling unit to cool the display apparatus including a heat generating unit to generate heat and a casing to accommodate the heat generating unit, the cooling unit includes a cooling fan to generate air flow; a duct which is coupled with the casing and forms a cooling path to connect the cooling fan and the heat generating unit; an inlet portion which is provided to one side of the casing to communicate with the duct; an inlet grill which is provided in the inlet portion to guide air to be inhaled in a direction inclined to a rear surface of the casing; an outlet portion which is provided to an other side of the casing to communicate with the duct, being spaced from the inlet portion; and an outlet grill which is provided in the outlet portion to guide air to be exhaled in a direction inclined to a rear surface of the casing, wherein the exhaled direction provided by the outlet grill is different from the air-inhaling direction provided by the inlet grill. With this configuration, the cooling path is effectively provided to enhance cooling efficiency and thermal reliability.

A cooling device for cooling a heat-generating component includes a circulating passage arranged to have coolant circulate therein, a centrifugal pump including a first case made of metallic material, a second case made of resin material, and an impeller accommodated in the pump chamber, and a radiator provided at the circulating passage and being operable to release heat from the coolant. The first case has a surface arranged to contact the heat-generating component. The second case forms a pump chamber between the first case and the second case. The pump chamber stores the coolant therein. The impeller includes open-type vanes arranged to pressurize the coolant as to have the coolant flow through the circulating passage. The cooling device has a high cooling efficiency as well as a high operating efficiency of the motor while having a simple construction and a small overall size and a small thickness.

A rotating electric machine, comprising a stator, a rotor, a case storing the stator and the rotor, and an oil pump. Oil discharge ports are formed at the terminal part of an oil discharge passage of the case, and a cooling oil is supplied to the upper cutout parts of the stator. A groove part is covered by a cover to form a closed flow passage. Since the cooling oil is sufficiently applied to the portion of a coil exposed to the inside of the flow passage, a cooling efficiency is increased. Also the cooling oil is guided to an orifice on the lower side in the gravitational direction. Accordingly, since the cooling oil does not flow in an air gap between the rotor and the stator, a power loss can be prevented from occurring.

The invention discloses an efficient graphene-based cooling coating as well as a preparation method and application thereof. The coating mainly consists of graphene composite powder, a filler, a high-molecular binder and a solvent, wherein the graphene composite powder mainly consists of thin-layer graphene and carbon black; the carbon black is mainly dispersed among the thin-layer graphene. Further, the graphene composite powder is formed by ultrasonically dispersing and mixing the thin-layer graphene powder and the carbon blank and then drying. When the coating is coated on the surfaces of devices, the surface cooling efficiency of the devices can be remarkably improved and the cooling ability of the cooling devices is greatly enhanced; the coating is antiseptic, waterproof, antifouling, stable in cooling property and free of being influenced by surrounding medium, and has wide application prospect and practical value in the electronic cooling field; meanwhile, the coating preparation process is simple, low in cost and suitable for large-scale production.

Embodiments of the invention relate to a vane assembly formed by a forward airfoil segment and an aft airfoil segment. The aft segment is made of metal and can define the trailing edge of the vane assembly. The forward segment can be made of ceramic, CMC or metal. The forward and aft segments cannot be directly joined to each other because of differences in their rates of thermal expansion and contraction. The forward and aft segments can be positioned substantially proximate to each other so as to form a gap therebetween. In one embodiment, the gap can be substantially sealed by providing a coupling insert or leaf springs in the gap. A separate metal aft segment can take advantage of the beneficial thermal properties of the metal to improve cooling efficiency at the trailing edge without limiting the rest of the vane to being made out of metal.

A circuit card module having increased cooling efficiency which comprises at least one printed wiring board (PWB), at least one component mounted on the PWB, a heatsink, an interchangeable frame, and a wedgelock for use with a chassis cold wall. One embodiment of the interchangeable frame comprises a protrusion so that it can be used with a convection-cooled chassis (fully compliant with IEEE 1101.2 Specifications). Another embodiment, for use with conduction-cooled chassis only (partially compliant with IEEE 1101.2 Specifications), is maximally efficient in removing heat as it does not include the protrusion. In the embodiment without the protrusion, the conduction contact area between the chassis cold wall and the frame is increased in width from approximately 0.25'' to approximately 0.35''. In either embodiment, the wedgelock is mounted to one surface of the frame such that when installed in a conduction-cooled chassis, the opposite frame surface is forced against the chassis cold wall. In addition, the wedgelock can be enlarged to increase the clamping force over the contact area. The increased wedgelock size approximately doubles the clamping force applied. The net effect of these improvements are a reduction in the thermal resistance per inch of wedgelock length. This, in turn, reduces the module to chassis interface temperature rise of an exemplary 40 W module from 8.3° C. to 4.15° C. The improved thermal resistances and decreased temperature rises boost the reliability of the circuit cards, particularly in the stringent environments experienced in military applications.

In a disk array device for cooling respective sections including a HDD by a fan, drop of cooling efficiency by the difference of conditions of HDD mounted and unmounted sections is prevented and the use of a dummy HDD is deleted/eliminated. A housing contains a HDA mounted on the HDD, a power controller board for performing control to the HDD, a power unit for supplying power to each section, a fan for cooling the housing therein, and a backboard for connecting all the sections. On one backboard surface, the HDA is mounted, which has a cooling function for making cooling air flowing in the housing and exhausting air from the housing via a region on which the HDA are mounted and via a vent hole on the backboard. For the vent hole, a shutter is mounted, which has a mechanism for adjusting an open area rate of the vent hole by opening when the HDA is mounted and closing when removed.

A pump for circulating a coolant has a housing thereof in direct thermal connection with an electronic component. This provides both the improvement of cooling efficiency of a cooling device and the realization of a compact, slim design of the device.

An electronic apparatus, such as, personal computers of so-called a desktop type and a notebook type, as well as, a server, etc., having a cooling system being high in cooling efficiency, wherein a CPU 200 in need of cooling is installed within a hosing 100, and the liquid cooling system for cooling the CPU, comprises: a heat-receiving (cooling) jacket 50; a radiator 60; and a circulation pump 70, wherein the heat-receiving (cooling) jacket 50, for transmitting heat generated from a heat-generation element, i.e., the CPU, into a liquid coolant flowing with in an inside thereof, has a heat diffusion plate 90 attached on the lower surface thereof. This heat diffusion plate encloses an operating fluid 94, such as water, within a space, which is hermetically sealed and formed within an inside thereof, and also has heater elements 95, being provided in contact with a portion the operating fluid. To those heater elements 95 are supplied a pulse-like electric power. With this, a portion of the operating fluid repeats forming/extinguishing, to give vibration to the operating fluid, thereby diffusing the heat over the entire of the diffusion plate, as a whole, thereafter the heat is transmitted to the heat-receiving (cooling) jacket. Or, alternatively, it may be connected with a heat radiation fin 300.

The soundproof casing is divided to an engine room 1, a muffler room 2 and a radiator room 3. The engine room 1 includes the engine E and a work machine unit (generator unit G). The muffler room 2 includes mufflers M1, M2. The radiator room includes a radiator R. An electric fan D is provided between an air intake aperture 22a and the radiator. The radiator room and the muffler room are communicated. An air flow duct 4 to communicate the engine room and the muffler room is provided. An engine fan F is provided just opposite to an entrance of the air flow duct. An inter-cooler I is provided in the air flow duct. The soundproof type engine driven work machine including aforementioned apparatuses is offered to improve the cooling efficiency as well as reducing unfavorable noise.

The invention discloses an oil cooling device used for a permanent magnet synchronous traction motor. The oil cooling device comprises a cooling channel formed in a shell and an end cover; the cooling channel is communicated with an external oil supplying pipeline by an oil inlet and is communicated with an external oil returning pipeline by a first oil outlet; an oil spraying port is formed in the shell and/or the end cover and is communicated with the cooling channel and an inner cavity of the permanent magnet synchronous traction motor; a second oil outlet is formed in the shell; the inner cavity is communicated with the external oil returning pipeline by the second oil outlet to guide cooling oil in the inner cavity. In such a mode, the oil cooling device can realize the direct cooling of the shell and the end cover, and meanwhile, the inner structure of the shell can be directly and effectively cooled by the cooling oil entering the inner cavity from the oil spraying port, so the cooling efficiency of the oil cooling device is improved, and the work performance of the oil cooling device is improved. The invention also discloses a permanent magnet synchronous traction motor comprising the oil cooling device.

The invention relates to a communication machine case which comprises a back plate and the outer shell of the machine case, which is arranged outside the back plate. The communication machine case of the invention also comprises a fan disk which is embedded in the outer shell of the machine case and adjacent and parallel to the wall surface of the back plate, blowholes which are arranged on the back plate and non-symmetrically arranged while being bounded by the axle wire of the back plate, and air inlets which are arranged on the outer shell of the machine case and adjacent to the back plate while the side wall of the air inlet is away from one side provided intensively with the blowholes. According to the technical proposal, the invention adopts a technical means that the fan disk is arranged at the rear surface of the communication machine case and the air inlets and the blowholes are correspondingly arranged on the side wall of the outer shell of the machine case and the back plate, thus avoiding the limitation caused by the arrangement position of the fan disk on the improvement of the integration level of the communication machine case, and being capable of improving the cooling efficiency so as to provide the effective protection for the improvement of the integration level of the communication machine case in the event of the power consumption increase caused by the improvement of the integration level.

The present invention provides improved cooling of a veil of glass fibers by using a combination of nozzle assemblies. The nozzle assemblies include air caps of differing configurations to control the penetration of the spray into the veil. One suitable spray configuration is a nozzle assembly having punch air cap that creates a narrow exit angle, high velocity flow of droplets to penetrate the veil to cool the fibers at the interior. Another suitable configuration is a nozzle assembly having a flat air cap that creates a wide exit angle, low velocity, dispersed spray pattern to cool the exterior of the veil. Preferably, the flat air cap creates a very fine particle size to increase the cooling efficiency of the spray. By using the cooling ring of the present invention, lower levels of binder to be applied to the fibers and environmental emissions from the plant may be reduced.

A battery module includes a battery assembly having a plurality of unit batteries. A housing receives the battery assembly and has an coolant flow passage formed around the battery assembly. A divider is installed in the coolant flow passage to divide the coolant flow passage into a plurality of sub-coolant flow passages.

The invention relates to a heatsink. More particularly, the invention relates to a heatsink having tapered geometry that improves passive cooling efficiency. A tapered geometry between heatsink heat dissipation elements, as a function of distance along a z-axis opposing gravity, decreases resistance to rarification of passively flowing cooling gas upon heating. Thus, the tapered heatsink elements result in higher velocity of gas flow and increased cooling efficiency of the heatsink. Optionally, the heatsink is made from a thermally conductive polymer allowing the heatsink to be created in complex shapes using injection molding.