309 results about "Conduction cooling" patented technology

A thermally-conductive interface for conductively cooling a heat-generating electronic component having an associated thermal dissipation member such as a heat sink. The interface is formed as a self-supporting layer of a thermally-conductive material which is form-stable at normal room temperature in a first phase and substantially conformable in a second phase to the interface surfaces of the electronic component and thermal dissipation member. The material has a transition temperature from the first phase to the second phase which is within the operating temperature range of the electronic component.

A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.

A cooling apparatus and method are provided for cooling an electronics rack. The cooling apparatus includes an air-cooled cooling station, which has a liquid-to-air heat exchanger and ducting for directing a cooling airflow across the heat exchanger. A cooling subsystem is associated with the electronics rack, and includes a liquid-cooled condenser facilitating immersion-cooling of electronic components of the electronics rack, a liquid-cooled structure providing conductive cooling to electronic components of the electronics rack, or an air-to-liquid heat exchanger associated with the rack and cooling airflow passing through the electronics rack. A coolant loop couples the cooling subsystem to the liquid-to-air heat exchanger. In operation, heat is transferred via circulating coolant from the electronics rack, and rejected in the liquid-to-air heat exchanger of the cooling station to the cooling airflow passing across the liquid-to-air heat exchanger. In one embodiment, the cooling airflow is outdoor air.

Method and System for dissipating thermal energy from conduction-cooled circuit card assemblies in which thermal energy is directed into proximate heat sink assemblies and additionally is conveyed by heat pipes to one or more remote heat sink assemblies configured for the transfer of thermal energy to a flow of air and located within a chassis at a position remote from the system thermal load.

One or more heat pipes are connected between a component on a circuit card and the frame of a circuit card assembly for transfer of heat to the frame of the circuit card assembly. Circuit cards are typically held in place in channels in a chassis by an expansion type retention device. The circuit cards also include a heat frame for collecting the heat produced by the card components and channeling the heat from the card through the heat frame to the chassis. The retention device presses the heat frame in to thermal contact with one side of the channel. Heat collector can be attached to the heat generating components of a circuit card between the heat pipe and the component to provide improved thermal transfer. A number of heat collectors with pairs of heat pipes extending in opposite directions from the collector to the frame can be used to allow the heat pipes to effectively dissipate heat form the circuit card assembly regardless of the orientation of the circuit card assembly.

A cooling assembly is located in a chassis with a conduction-cooled circuit module and permits the conduction-cooled circuit module to be utilized in an air-flow-through or liquid-flow-through circuit module chassis assembly. The cooling assembly may be a removable cooling adapter or may be integral with the chassis. The cooling assembly includes a housing having a first end and a second end and defining one or more fluid passages. The housing further includes a thermal contact surface to contact the conduction-cooled circuit module. The cooling assembly may be configured for air-flow-through or liquid-flow-through cooling of the conduction-cooled circuit module.

The invention relates to a conduction-cooled superconducting magnet Dewar with easy loading-unloading, comprising a Dewar cylinder. The conduction-cooled superconducting magnet Dewar is characterized in that the Dewar cylinder is a hollow annular cylinder, the middle of the annular cylinder is provided with a room temperature hole, an annular copper cold shield is arranged in the Dewar cylinder, a refrigerator and a superconducting magnet are arranged in the copper cold shield, a vacuum pumping port is arranged on the Dewar cylinder, a measuring device is arranged on an upper cover of the Dewar cylinder and the Dewar cylinder is in a vacuum state. Compared with the prior Dewar container, the conduction-cooled superconducting magnet Dewar is simpler, has small conduction heat leakage, and has the advantages of easy installation and disassembly; the refrigerator is used for conducting and cooling without a low temperature liquid (such as liquid helium and so on) cooling system; because of simple and safe system, a first-level cold junction of the refrigerator is operated under a temperature of 77K, thereby realizing heat sink of the copper cold shield, an electric lead and a support device; the first-level cold junction of the refrigerator adopts soft connection, thereby reducing temperature increment of the magnet due to vibration of the refrigerator; and the conduction-cooled superconducting magnet Dewar has the advantages of easy operation of manufacture, processing and installation, and is applicable to scale production.

A FFF-based 3D printer includes a thermal management system that incorporates liquid cooling for the cooling block. In the illustrative embodiment, the thermal management system includes a coolant block that couples to the surface of the existing cooling block, a liquid-coolant reservoir, a fan for cooling the reservoir, a pump for pumping the coolant, and conduits for conducting the coolant to and from the coolant block. Embodiments of the invention provide a way to prevent or substantially reduce the incidence of clogging as otherwise occurs when attempting to print high-temperature, high-viscosity materials using FFF-based 3d printers.

First, a system for providing liquid refrigerant subcooling, subsequent to that subcooling accomplished by the primary condenser of an air conditioner or heat pump, by means of evaporative cooling utilizing the condensate water of said air conditioner or heat pump system and/or some other water supply to wet the surface of the subcool heat exchanger and then passing the cold, dry building exhaust air required for good indoor air quality across the wetted surface of the subcool heat exchanger. Said exhaust air could be used after first undergoing a sensible heat exchange with the incoming make up air. Said subcooling providing for an increased refrigeration capacity, and efficiency of the system. Secondly, a system for providing hot gas discharge refrigerant precooling before said hot gas passes into the primary condenser of an air conditioner or heat pump, by means of evaporative cooling utilizing the condensate water of said air conditioner or heat pump system and/or some other water supply to wet the surface of the precool heat exchanger and then passing the cold, dry building exhaust air required for good indoor air quality across the wetted surface of the precool heat exchanger. Said precooler providing lower power consumption of the compressor, lower head pressure, increased mass flow of the refrigerant and improved efficiency of the primary condenser of the air conditioning or heat pump system. Said exhaust air could be used after first undergoing a sensible heat exchange with the incoming make up air on either the subcooler or precooler. Finally, a combination subcooler and precooler system where the cold dry exhaust air is first used to evaporatively subcool the liquid refrigerant in the water wetted subcooler and then subsequently used to conductively cool the hot gas refrigerant passing through a dry surface precooler or alternately used to evaporatively cool the wetted surface of the precooler thereby evaporatively precooling the hot gas refrigerant passing through the precooler.

A lightweight inductor for the motor controller of an aircraft starter includes a toroidal inductor core divided into multiple sections that are separated by a thermally conductive, but electrically insulating, material. The inductor core is wound with wire and positioned inside of an electrically and thermally conductive container, which acts as a heat sink and EMI shield, while also reducing eddy currents within the inductor core.

A method of forming a heat-dissipating structure for semiconductor circuits is provided. First and second semiconductor integrated circuit (IC) chips are provided, where the first and second semiconductor chips each have first and second opposing sides, wherein the first and second semiconductor IC chips are configured to be fixedly attached to a top surface of a substantially planar circuit board along their respective first sides. The respective second opposing sides of each of the first and second semiconductor IC chips are coupled to first and second respective portions of a sacrificial thermal spreader material, the sacrificial thermal spreader material comprising a material that is thermally conductive. The first and second portions of the sacrificial thermal spreader material are planarized to substantially equalize a respective first height of the first semiconductor chip and a respective second height of the second semiconductor chip.

A conduction cooled circuit board assembly may include a frame and at least one circuit board attached to the frame, having at least one area to be cooled. The assembly may also include at least one rail attached to the frame, and at least one heat pipe having a first end and a second end, the first end disposed near the area and the second end in contact with the rail so as to transfer heat from the area to the rail.

A cooled electronic system and cooling method are provided, where an electronics board having a plurality of electronic components mounted to the board is cooled by an apparatus which includes an immersion-cooled electronic component section and a conduction-cooled electronic component section. The immersion-cooled section includes an enclosure at least partially surrounding and forming a compartment about multiple electronic components of the electronic components mounted to the electronics board, and a fluid disposed within the compartment. The multiple electronic components are, at least in part, immersed within the fluid to facilitate immersion-cooling of those components. The conduction-cooled electronic component section includes at least one electronic component of the electronic components mounted to the electronics board, and the at least one electronic component is indirectly liquid-cooled, at least in part, via conduction of heat from the at least one electronic component.

A method for cooling a transformer and transformer apparatuses are implemented. A transformer apparatus, according to one embodiment, comprises: a conduction cooled electrical transformer (240) mounted to a cold plate (252); and a heat pipe (262) for supplementing cooling of the transformer (240), the heat pipe (262) comprising a first end (303), a second end (305), and a sealed low pressure cavity containing an amount of a fluid (311), wherein the first end (303) of the heat pipe (262) is located in a hot region of the transformer (240), the second end (305) is maintained colder than the first end (303) by contact with the cold plate (252), and heat produced at the first end (303) by operation of the transformer (240) is moved to the second end (305) by a closed loop vapor cycle in the sealed low pressure cavity using the fluid (311) of the heat pipe (262).

A cooling apparatus and method are provided for cooling an electronic subsystem of an electronics rack. The cooling apparatus includes a local cooling station, which has a liquid-to-air heat exchanger and ducting for directing a cooling airflow across the heat exchanger. A cooling subsystem is associated with the electronic subsystem of the rack, and includes either a housing facilitating immersion cooling of electronic components of the electronic subsystem, or one or more liquid-cooled structures providing conductive cooling to the electronic components of the electronic subsystem. A coolant loop couples the cooling subsystem to the liquid-to-air heat exchanger of the local cooling station. In operation, heat is transferred via circulating coolant from the electronic subsystem and rejected in the liquid-to-air heat exchanger of the local cooling station to the cooling airflow passing across the liquid-to-air heat exchanger. In one embodiment, the cooling airflow is outdoor air.

The invention discloses a high-temperature superconductive magnet system for a magnetically confined plasma propeller, which comprises two magnetic mirror units in the same structure, wherein each magnetic mirror unit comprises a Dewar barrel and two high-temperature superconductive magnets; and a refrigerator is used for cooling the two high-temperature superconductive magnets in each magnetic mirror unit. mode by a conductive cooling mode and uses the refrigerator to cool the two superconductive magnets in a conductive manner, so that the high-temperature superconductive magnet system for the magnetically confined plasma propeller greatly simplifies the structure, realizes high vacuum, reduces dependence on liquid nitrogen and high-cost operations, avoids a large-size low-temperature system and equipment used in the low-temperature liquid cooling mode, eliminates risks caused by the evaporation of a low-temperature liquid, cools the magnet to a temperature below 77 K and realizes a high field by increasing the critical current of the magnets, thus a superconductive low-temperature system is compact, efficient, safe and convenient, and is beneficial for integrating a superconductive apparatus with a low-temperature device.

A high-temperature superconducting magnet online monitoring system comprises a high-temperature superconducting magnet system, a conduction cooling refrigeration system, a low-temperature Dewar system, a testing device, a digital voltage meter, a carburizing ceramic temperature sensor, a measuring manganin wire, a heat conduction insulating layer, a temperature transmitter, a fiber converter, a fiber, a compression joint copper sheet and low-temperature high vacuum grease, the cooling refrigeration system comprises a refrigerating machine cold head, a copper cold conduction connecting plate and a copper cold conduction framework, the heat conduction insulating layer coats the copper cold conduction framework, the testing device comprises a computer and a current sensor, the middle of the measuring manganin wire is wound on the heat conduction insulating layer, the carburizing ceramic temperature sensor is directly pressed on the surface of a high-temperature superconducting strip, two ends of the carburizing ceramic temperature sensor are directly fixed on the surface of the high-temperature superconducting strip, gaps among the compression joint copper sheet, the carburizing ceramic temperature sensor and the high-temperature superconducting strip are filled with the low-temperature high vacuum grease for assisting in fixing the carburizing ceramic temperature sensor and conducting heat.