946 results about "Thermal management of electronic devices and systems" patented technology

PCT No. PCT/US95/13325 Sec. 371 Date Sep. 28, 1997 Sec. 102(e) Date Sep. 28, 1997 PCT Filed Oct. 10, 1995 PCT Pub. No. WO96/12316 PCT Pub. Date Apr. 25, 1996Fuel cell stacks comprising stacked separator/membrane electrode assembly fuel cells in which the separators comprise a series of thin sheet platelets, having individually configured serpentine micro-channel reactant gas humidification active areas and cooling fields therein. The individual platelets are stacked with coordinate features aligned in contact with adjacent platelets and bonded to form a monolithic separator. Post-bonding processing includes passivation, such as nitriding. Preferred platelet material is 4-25 mil Ti, in which the features, serpentine channels, tabs, lands, vias, manifolds and holes, are formed by chemical and laser etching, cutting, pressing or embossing, with combinations of depth and through etching preferred. The platelet manufacturing process is continuous and fast. By employing CAD based platelet design and photolithography, rapid change in feature design can accommodate a wide range of thermal management and humidification techniques. One hundred H2-O2/PEM fuel cell stacks of this IFMT platelet design will exhibit outputs on the order of 0.75 kW/kg, some 3-6 times greater than the current graphite plate PEM stacks.

Systems, methods, and computer-readable media. for thermally managing electronic devices using dynamic optical components are provided. At least one of the reflectance and the transmittance of incident electromagnetic radiation of a dynamic optical component on an electronic device may be adjusted based on a detected variable device characteristic of the device, such as a temperature of a device component. By adjusting the reflectance and/or the transmittance of the dynamic optical component, different portions of the incident electromagnetic radiation may be directed from the dynamic optical component for changing the variable device characteristic.

A light fixture (10), having a circuit board (20) having first and second major surfaces (20a and 20b); at least one light emitting diode (25) mounted on the first major surface (20a) of the circuit board (20); an enclosure (30) formed of a material having two major surfaces (30a and 30b) and a thermo-mechanical design constant of at least 20 mm-W/m*K and shaped so as to define an opening (32) and a cavity (33), one of the major surfaces (30a) of the material defining the surface of the cavity (33) and the enclosure (30) positioned so as to enclose the second major surface (20b) of the circuit board (20); a heat spreader (40) having a surface area at least twice that of the circuit board and a thermo-mechanical design constant of at least 10 mm-W/m*K, the heat spreader (40) positioned in thermal contact with both the circuit board (20) and the enclosure (30).

A light emitting apparatus (10, 110, 210, 310, 410) includes one or more light emitting diode chips (12, 112, 212, 312, 412) disposed on a chip support wall (16, 116, 216) including printed circuitry (34, 134, 234, 360, 362, 460, 462) connecting with the light emitting diode chips. A heat pipe (24, 124, 224, 324, 424) has a sealed volume (22, 122, 222, 322, 422) defined by walls including the chip support wall and at least one additional wall (18, 20, 118, 120, 218). The heat pipe further includes a heat transfer fluid (26, 226, 326, 426) disposed in the sealed volume.

A circuit board assembly having a laminate construction of multiple layers, such as a LTCC ceramic substrate, with conductor lines between adjacent pairs of layers. A heat sink is bonded to a first surface of the substrate, and a cavity is defined by and between the heat sink and the substrate such that a base wall of the cavity is defined by one of the layers with conductor lines thereof being present on the base wall. A surface-mount circuit device is received within the cavity, mounted to the base wall, and electrically connected to the conductor lines on the base wall. The device is received within the cavity such that a surface of the device contacts a surface region of the heat sink. The surface of the device is bonded to the surface region of the heat sink to provide a substantially direct thermal path from the device to the heat sink.

An insulated spray cooling system for extreme environments for providing a desired enclosed environment for electronic devices regardless of external environmental conditions. The insulated spray cooling system for extreme environments includes an insulated enclosure that isolates the electronic devices being thermally managed from the external environment and a thermal management unit within the enclosure for thermally managing electronic devices.

The invention discloses silicon dioxide coated phase-change microcapsules and a preparation method and an application thereof, wherein the phase-change microcapsules include a core material and a wall material; the core material includes a phase-change material, and the wall material is silicon dioxide; the enthalpy value retention rate of the silicon dioxide coated phase-change microcapsules is 20-99%; the average particle size of the microcapsules is 0.1-100 microns. Through a sol-gel reaction on an emulsion interface, the silicon dioxide coated phase-change material is obtained by one step; no toxic substances are generated in the preparation process, so the preparation process is green and environmentally friendly; the prepared phase-change energy-storage microcapsules are high in coating rate and low in damage rate, the supercooling degree of the phase-change material is effectively reduced, the obtained phase-change material has no volatile gases, the use is safe, and an application scope is expanded; the preparation method has the advantages of simple process, low cost, cheap and easily obtained used raw materials, and easily achieved industrialization. The phase-change energy-storage microcapsules can be widely applied to the fields of textile, building energy conservation, electronic part and component thermal management, waste heat recovery and the like.

The invention relates to a thermal management technology for power batteries, and belongs to the field of power batteries. A thermal management method for a battery pack is characterized in that a heat-conducting sleeve coating one battery is arranged outside one battery cell of the battery pack; each heat-conducting sleeve is connected with a heat-conducting pipe with a heat transfer function; and heat exchange is achieved for the batteries of the battery pack through heat transmission of the heat-conducting pipe. A device for thermal management employing the thermal management method for the battery pack is characterized by comprising the heat-conducting pipes and the heat-conducting sleeves, wherein each heat-conducting sleeve is fixedly connected with the corresponding heat-conducting pipe; each heat-conducting sleeve coats the outside of each battery cell of the battery pack; the internal sizes of the heat-conducting sleeves are matched with the external sizes of the batteries; the outer side of each heat-conducting sleeve is fixedly connected to the corresponding heat-conducting pipe; the heat-conducting pipes transmit the heat generated by the batteries through heat transmission; and heat exchange is achieved for the batteries of the battery pack. According to the thermal management method and device, the temperature adjusting effect is improved; the mechanical properties of the batteries and the thermal management device are strengthened; and the device is portable and easy to assemble.

The invention discloses an electric vehicle remote thermal management control method, device and system and a storage medium. The method comprises: acquiring a vehicle reservation instruction which issent by a user side and comprises reservation information such as estimated departure time, an estimated destination position and an estimated driving mode; based on the reservation information and the obtained current parking point position, determining a predicted environment temperature and a predicted driving duration of the to-be-used vehicle in the travel; determining a current thermal management mode and a current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration; determining current thermal management starting time and current thermal management starting duration based on the estimated departure time; and controlling a heat pump system of the to-be-used vehicle to perform heat management on theto-be-used vehicle through the power domain controller according to the determined heat management control information. By adopting the embodiment of the invention, unnecessary energy waste can be reduced while the use comfort of the vehicle is improved and the cruising ability of the vehicle is increased.

A method for detecting temperature associated with a processor, results of the detecting being used for controlling power dissipation associated with the processor and/or apparatus and/or system employing the same.

The present invention provides a preparation method of a graphite film composite body. According to the preparation method, a polymer binder is infiltrated into a plurality of layers of graphite films by means of dipping and punching processes, so that the graphite film composite body can be formed. The method has the advantages of simplicity, reliability and high operability, and can be applied to the preparation of graphite film polymer composite bodies. The graphite film composite body prepared by using the method has the advantages of small density, adjustable thickness, high thermal conductivity, good mechanical properties, strong interlayer bonding strength and the like, and can be widely applied to the thermal management of electronic products.

The invention discloses a whole-vehicle thermal management system of a new energy vehicle, and belongs to the technical field of vehicles. The whole-vehicle thermal management system comprises a powermotor thermal management loop, which comprises a first water pump, a charger, a direct current transformer, a power motor inverter, a power motor body and a first radiator which can be communicated in sequence; a power battery thermal management loop, which comprises a second water pump, a third radiator, a second radiator and a power battery which can be communicated in sequence; a passenger compartment heat management loop, which comprises a passenger compartment heating loop that comprises a third water pump, a third radiator, a fourth radiator and an electric heating device which can be communicated in sequence; a first two-way valve, a first four-way valve, and a second four-way valve. Waste heat of a power motor can be used for heating a power battery and a passenger compartment, and the endurance mileage of the power battery is increased.

The invention discloses a preparation method of an inorganic material-coated phase change microcapsule, a product prepared thereby and an application of the product. The inorganic material-coated phase change microcapsule is obtained in one step through sol-gel reaction on an emulsion interface. No toxic substance is generated in the preparation process of the inorganic material-coated phase change microcapsule and the preparation process is green and environmentally friendly; the phase change and energy storage microcapsule prepared through the preparation method is high in coating rate and low in breakage rate, the supercooling degree of the sol-liquid phase change material is effectively reduced, the obtained phase change material is free of a volatile gas and safe in use, and the application range is expanded; the preparation method is simple in process and low in cost, the used raw materials are cheap and available and industrialization is easy to implement; and the phase change and energy storage microcapsule can be widely applied to the fields, such as spinning, building energy conservation, thermal management of electronic components and waste heat recovery.