129results about How to "Effective heat conduction" patented technology

Apparatus and methods are provided for packaging multi-chip modules with liquid cooling modules designed to provide different thermal resistances for effectively conducting heat from various chips with disparate cooling requirements while minimizing mechanical stresses in thermal bonds due to thermal excursions.

The present invention provides a substrate for LED packaging and a fabrication method thereof. The substrate can dissipate heat quickly and enhance light emitting efficiency. For this purpose, several via holes are formed in the substrate and metal layers are coated to act as light reflector. In the substrate, the via holes are filled with the material with high thermal conductivity, such as Copper, to conduct the heat efficiently; and the reflector are coated the metal with high reflection factor to visible light, such as Ag, Au, Al, to enhance the light emitting efficiency.

A monolithic passively Q switched microlaser includes an optically transparent heat conductive element bonded to a gain medium, which is in turn bonded to a saturable absorber, which may also be bonded to a second optically transparent heat conductive element. Only the gain medium and saturable absorber are disposed within the laser resonator.

The present invention provides a lens-interchangeable camera combining an image pickup device, comprising: a lens unit having a lens and the image pickup device; a camera body having a lens unit connection portion to which the lens unit can be detachably attached; and a heat conducting elastic member which elastically abuts the lens unit and the camera body when the lens unit is attached to the camera body through the lens unit connection portion, and which conducts heat generated by the lens unit to the camera body. In this way, heat is conducted from the lens unit to the camera body without any hindrance to the attachment operation when the lens unit is used by being attached to the camera body, thus easily dissipating heat.

A transformer is provided comprising a first member upon which a first circuit is wound; a second member upon which a second circuit is wound such that power is transferred to the second circuit in a contact-less manner; and a signal transmitter on the first member in close proximity to an appropriate receiver on the second member together with a signal transmitter on the second member in close proximity to an appropriate receiver on the first member such that said transmitters and receivers exchange signals in a contact-less manner, whereby the circuits are embedded in a high thermal conductivity resin. An exemplary embodiment of the invented transformer is one where the second member rotates relative to the first member.

This invention relates to an LCD device comprising an electrically conductive and optically transparent nanostructure film deposited adjacent to or forming a part of at least one of a) a layer comprising triacetyl cellulose (TAC), b) a polarizing layer, c) an adhesive layer, d) a protective layer, e) an anti-glare layer f) an anti-reflective layer, or g) an antistatic layer. One embodiment is a device comprising an in plane switching (IPS) liquid crystal display (LCD) and a nanostructure film, wherein the film is electrically conductive, and wherein the film is optically transparent.

The present invention provides a microfluidic device comprising a plurality of wells, each of which may be substantially filled with a liquid without either the need for expensive individual sample loading or the requirement to isolate individual wells to prevent cross contamination and sample evaporation. A base member (2) comprises a plurality of wells (4) in the form of an array, an inlet channel (6) and three outlets (8).

A mount for a semiconductor device includes a carrier, at least two metal leads disposed on a bottom surface of the carrier, and a cavity extending through a thickness of the carrier to expose a portion of the top surfaces of the metal leads. A semiconductor light emitting device is positioned in the cavity and is electrically and physically connected to the metal leads. The carrier may be, for example, silicon, and the leads may be multilayer structures, for example a thin gold layer connected to a thick copper layer.

An LED based lighting fixture for street lighting includes a lighting head unit including a heat sink structure for dissipating heat. Below the heat sink structure is one or more LED circuit boards each including a plurality of low power LEDs oriented in a plurality of different directions. Light emitted from the lighting head unit is cast in a desired pattern of disbursement. A lens unit is attached to the bottom side of the lighting head unit covering the LED circuit board. The lighting fixture includes a mounting unit for mounting the lighting head unit to a fixed structure such that an angle of the lighting head unit may be adjusted to direct the pattern of disbursement of light cast from the lighting head unit to a desired direction.

A lighting apparatus comprises an LED-mounted substrate and an exhauster. The substrate has a flat area as well as one or more raised areas of trapezoidal cross section which each form a passage thereunder. LEDs are mounted on the raised areas. When the LED-mounted substrate is installed on a wall, the passages are enclosed by the wall. The exhauster removes the heat from the LEDs by drawing out the air going through inside the passages.

A tactical firearm having a receiver and a handguard connected by flanges that are secured by fasteners and each define co-planar rail mounting surfaces. A one-piece elongate sight mounting rail extends along the combined length of the receiver and handguard and has a mounting surface in face to face relation with the rail co-planar rail mounting surfaces of the receiver and handguard. The rail is tapered along its length to provide an angle of cant and to permit mounting sight devices an any desired location along its length. A barrel extends through the handguard and is secured to the receiver in a manner achieving clearance and thermal isolation of the handguard from the barrel and barrel retainer. A cartridge gas energized bolt carrier and bolt mechanism is moveable within the receiver and is provided with anti-tilt guidance with respect to a spring energized buffer mechanism and moves a cartridge from a magazine into the cartridge chamber of the barrel and returns the bolt mechanism to its closed and locked condition upon dissipation of the cartridge gas energizing force.

An improved, more durable heat conductive composition for transferring heat from a heat-dissipating component to a heat dissipater and method of producing the same. The composition preferably comprises a base consisting of paraffin and, optionally, paraffin and petrolatun having electrically-conductive particles suspended therein, which preferably include graphite diamond, or elemental metals such as silver. In the preferred embodiment, the composition further includes a resin polymer to increase durability. The composition is formulated to be solid in the range of normal room temperatures, but liquify once subjected to temperatures just below the range at which heat generating electronic semi conductor devices typically operate. The present invention further comprises processes for packaging the compositions of the present invention, as well as applying the heat conductive composition to an interface between a heat-dissipating component and a heat sink.

The invention relates to a light-emitting apparatus. The light-emitting apparatus includes a heat-conducting/dissipating module and at least one semiconductor light-emitting module. The heat-conducting/dissipating module includes a substantially cylindrical heat-conducting device having at least one flat portion and at least one heat-dissipating fin mounted on the circumference of the heat-conducting device. The at least one semiconductor light-emitting module includes a carrier, a plurality of exterior electrodes, at least one semiconductor light-emitting die, and at least two conducting wires. The carrier is flatly mounted on the flat portion of the heat-conducting device. The plurality of exterior electrodes is disposed on the carrier. The at least one semiconductor light-emitting die is mounted on the carrier and respectively connected to the plurality of exterior electrodes. The at least two conducting wires are connected to a power source or a grounding by being electrically connected to the plurality of exterior electrodes.

A platform segment for supporting a nozzle guide vane for a gas turbine is provided. The platform segment includes a gas passage surface arranged to be in contact with a streaming gas exhausted from a combustor, wherein the streaming gas streams along the gas passage surface in a streaming direction, a cooling surface, opposite to and thermally connected to the gas passage surface and arranged to be in contact with a cooling fluid, a wall protruding from the cooling surface and extending at least partially in the streaming direction, wherein the wall is arranged circumferentially between positions, at which adjacent guide vanes are to be provided, such that cooling fluid is channeled by the wall for cooling a downstream portion of the cooling surface, and a further wall protruding from the cooling surface and extending at least partially in the streaming direction.

The invention discloses a closed loop capillary solar photovoltaic thermoelectric plate, belonging to the field of solar photovoltaic generation and solar heat collection, which is characterized in that the device comprises a header tube, a finned tube, a capillary tube, a graphite heat conductive layer, a metal frame, a solar cell plate and a heat-insulating layer, wherein the capillary tube is formed by metal tubes with 2-5mm inner diameter, and is connected with the finned tube to form a closed pipeline system. The capillary tube is filled with heat transfer medium, and the heat transfer medium can absorb the heat energy of the solar cell plate to form a steam liquid column to enter into the finned tube when in work, and then returns to the capillary tube after being cooled and condensed by medium outside the tube, and resorbs the heat energy of the solar cell plate, and is heated to gasify, thereby finishing the heat transfer process through the circulation. The invention has the effects and benefits that the capillary metal tube can timely and effectively conduct away working waste heat of the solar cell plate, reduces the working temperature of the solar cell plate, increases the efficiency of photo-electronic conversion, and simultaneously realizes recycling of the working waste heat of the solar cell plate.