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134results about How to "Improve heat radiation efficiency" patented technology

Light emitting device package and back light unit for liquid crystral display using the same

A light emitting device package and a back light unit for liquid crystal display using the same wherein a fan is used to forcibly cool an LED package and a back light unit for LCD to increase the heat radiation efficiency and to prevent the degradation of the device.
Owner:LG ELECTRONICS INC

Safe and high-brightness LED lamp

A safe and high-brightness LED lamp consists of a lampshade, a bulb mounting base, an LED module and a circuit board. The lampshade and bulb mounting base construct an inner space, which is allowable to store said LED module; the LED module consists of a heat-radiating block, an LED lamp panel and a reflective wall, where such LED lamp panel can be flat nestled up against the heat-radiating block at one end. Moreover, such reflective wall can be coupled with the LED lamp so that the said inner space can be partitioned into one light source refractive space and one flowing space for airflow thereof. Furthermore, an electrical fan is installed outside the heat-radiating block. Thereby, while light is being refracted and diffused via reflective wall into the light source refractive space in lampshade, it will then be refracted and diffused once more, and under this circumstance, not only the light will become more uniform with higher brightness, but also it will improve the heat radiation efficiency, and thus, resulting in a longer service life for such LED lamp while utilizing the said flowing space for airflow to guide the air blown by the fan.
Owner:HUANG YAO HUI +1

Micro-nano structure preparation method on metallic material surface using femtosecond laser

InactiveCN101380693AHeat conduction effects are reduced and eliminatedHigh peak powerLaser beam welding apparatusMicro nanoNano structuring
The invention discloses a method for preparing a micron / nano structure on the surface of a metal material by using femtosecond laser. The preparation steps thereof are as follows: after mechanical grinding and polishing are carried out on the surface of the metal material, then the surface is ultrasonically washed by ionized water; a femtosecond laser technique is adopted: in the air environment, a 10*micro objective is used for vertically focusing an incident femtosecond laser pulse on the surface of the material; the radius of a laser beam at the focus position is 5 microns; besides, the surface of the material is adjusted to the position which has 10 to 250 microns to the focus plane of the objective along the reverse direction of the beam, thus being capable of generating the micron / nano structure on the surface of the metal material by inducing. The method has the advantages of simple technique, being convenient and practical, no pollution and being capable of improving and enhancing the thermal radiation efficiency of the material in a broad spectrum range.
Owner:NANKAI UNIV

Carbon nanotube fabric and heating body using carbon nanotube fabric

The invention relates to a carbon nanotube fabric and a heating body using the carbon nanotube fabric. The carbon nanotube fabric comprises a heating element and at least two electrodes, wherein the at least two electrodes are arranged at intervals and are electrically connected to the heating element; the heating element comprises a plurality of carbon nanotubes which are connected end to end; and the at least two electrodes are electrically connected to the carbon nanotubes in the heating element. The carbon nanotube fabric can be applied in the fields of shoe pads, heat insulation clothing, electric blankets, physical therapy instruments and the like.
Owner:TSINGHUA UNIV

Surface heat light source, preparation method thereof and method for heating object using the same

The invention relates to a surface heating light source, comprising a first electrode, a second electrode and a carbon nano-tube film; the first electrode and the second electrode are arranged on the carbon nano-tube film; the first electrode and the second electrode have a certain distance and electrically contact with the surface of the carbon nano-tube film; the carbon nano-tube film internally comprises carbon nano-tubes which enwind each other. The invention also relates to a preparation method used for preparing surface heating light source, comprising the steps as follows: carbon nano-tube raw material is provided; the carbon nano-tube raw material is added in solvent and carries out flocking disposal, thus gaining a carbon nano-tube floceulent structure; the carbon nano-tube floceuelent structure is separated from the solvent and shapes the carbon nano-tube floceulent structure so as to gain a carbon nano-tube film; the first electrode and the second electrode are provided; the first electrode and the second electrode are intermittently arranged on the surface of the carbon nano-tube film and form electric contact on the surface of the carbon nano-tube, thus gaining a surface heat light source. The invention also relates to a method used for heating the article by adopting the surface heat light source and comprises the steps as follows: an article to be heated is provided; the article is provided with a surface; the carbon nano-tube film in the surface heat light source is arranged closely to the surface of the article to be heated; voltage is applied to the electrodes in the surface heat light source so as to heat the article.
Owner:TSINGHUA UNIV +1

Semiconductor device and manufacturing method therefor

A semiconductor device has an external wiring for GND formed over an underside surface of a wiring substrate. A plurality of via holes connecting to the external wiring for GND are formed to penetrate the wiring substrate. A first semiconductor chip of high power consumption, including HBTs, is mounted over a principal surface of the wiring substrate. The emitter bump electrode of the first semiconductor chip is connected in common with emitter electrodes of a plurality of HBTs formed in the first semiconductor chip. The emitter bump electrode is extended in a direction in which the HBTs line up. The first semiconductor chip is mounted over the wiring substrate so that a plurality of the via holes are connected with the emitter bump electrode. A second semiconductor chip lower in heat dissipation value than the first semiconductor chip is mounted over the first semiconductor chip.
Owner:MURATA MFG CO LTD

Dew point temperature controlling method and device

InactiveCN106765967AAvoid the risk of condensationDoes not affect cooling requirementsMechanical apparatusSpace heating and ventilation safety systemsCapillary networkHigh humidity
The invention discloses a dew point temperature controlling method and device. The method comprises the following steps that the indoor environment temperature, the indoor environment humidity and the cold surface temperature are detected in real time, and the dew point temperature is calculated according to the indoor environment temperature and the indoor environment humidity; under a refrigerating mode, if the indoor environment humidity is larger than or equal to a first humidity threshold, a fan is only started to conduct dehumidification till the indoor environment humidity is smaller than a second humidity threshold or the indoor environment temperature is lower than a first set temperature, the fan is closed, wherein the second humidity threshold is smaller than the first humidity threshold; and if the indoor environment humidity is smaller than the first humidity threshold, a capillary network cold water valve and the fan are controlled to be started or closed according to the indoor environment temperature, a first temperature return difference compensating section, the dew point temperature and the cold surface temperature, so that the indoor environment temperature is adjusted to be maintained within the first temperature return difference compensating section. By means of the dew point temperature controlling method, unified control over a refrigerating system and a dehumidifying system can be achieved, the dew formation of a capillary network is effectively avoided, and the refrigerating requirement under a high-temperature and high-humidity environment is not affected.
Owner:HAILIN ENERGY TECH

Method and device for improving heat efficiency of combustion furnace by oxygen-rich partial oxygen-enriched jet flow combustion supporting

The invention discloses a method for improving the heat efficiency of a combustion furnace by oxygen-rich partial oxygen-enriched jet flow combustion supporting, which comprises the following steps of: introducing a fuel and an oxygen-rich gas into the combustion furnace respectively; and gathering the fuel and the oxygen-rich gas together for combustion, wherein the oxygen-rich gas is pressurized first, then is jetted into a fuel flow area at a linear velocity which is 1.2 to 4.0 times the flow velocity of the fuel by forming an angle of 10 to 45 degrees with the jetted fuel, and is mixed with the fuel for combustion, and the entering position of the oxygen-rich gas is an area which is between the top end of a combustion flame and a jet tip and is 1 / 4 to 4 / 2 away from the jet tip of a fuel nozzle. The invention also provides a device for improving the heat efficiency of the combustion furnace by the oxygen-rich partial oxygen-enriched jet flow combustion supporting. The method and the device has the following advantages that: by using a special oxygen-rich jet flow nozzle and a heat radiation principle, not only the duel energy-saving efficiencies of reducing the combustion-supporting air volume and completely combusting the fuel are kept, but also the temperature of a combustion flame area can be raised to the utmost extent, so the flue gas heat radiation is improved to the utmost extent.
Owner:魏伯卿

Infrared-radiation heat-dissipation water-based wear-resistant non-stick paint and preparation method thereof

The invention discloses infrared-radiation heat-dissipation water-based wear-resistant non-stick paint and a preparation method thereof. The non-stick paint comprises the following components in parts by weight: 20-50 parts of fluorine-containing emulsion, 10-40 parts of bonding resin, 5-20 parts of an infrared radiation material, 5-20 parts of a wear-resistant filler, 5-20 parts of high-temperature-resistant pigment, 1-5 parts of a pH regulator, 0-10 parts of an organic solvent, 1-5 parts of an auxiliary agent and 10-30 parts of water. The non-stick paint provided by the invention is increased greatly in the heat-radiation efficiency of the non-stick paint by adding the heat-dissipation filler with high infrared radiation rate, so that; the heat generated at the bottom is effectively dissipated in the form of infrared radiation, the heat-dissipation performance of the paint is improved and heat is rapidly transferred out.
Owner:HANGZHOU JIHUA POLYMER MATERIAL CO LTD

Display Unit Installing Structure for Refrigerator

The present invention relates to a display unit installing structure for a refrigerator. The present invention comprises an accommodating unit which is formed by depressing a portion on a front surface of a door and in which a display unit for displaying a variety of information thereon and inputting operating signals are retractably installed; a link mechanism for guiding accommodation and withdrawal of the display unit and tiltably supporting the display unit withdrawn from the accommodating unit at a predetermined angle; and a locking means for preventing the display unit from being inadvertently escaping from the accommodating unit. According to the present invention, there is an advantage in that the display unit can be retractably installed on the front surface of the refrigerator door.
Owner:LG ELECTRONICS INC

Air Conditioning System for Communication Equipment and Controlling Method thereof

An air conditioner for communication equipment is provided. The air conditioner includes an indoor module disposed at an indoor space of a base station having communication equipment and including an indoor heat exchanger and an indoor ventilator, an outdoor module disposed at an outside of the base station and including an outdoor ventilator, a brine cooling cycle including first and second outdoor brine heat exchangers, and first and second brine coolers, the indoor heat exchanger, and a brine pump, which are connected through a brine pipe, a first refrigerant cooling cycle including an expansion valve, the first brine cooler, a compressor, and a first outdoor refrigerant heat exchanger, which are connected through a first refrigerant pipe, and a second refrigerant cooling cycle including an expansion valve, the second brine cooler, a compressor, and a second outdoor refrigerant heat exchanger, which are connected through a second refrigerant pipe.
Owner:SOLID VENTUS INC

Image pickup apparatus with air cooling unit

An image pickup apparatus that is excellent in rigidity and in heat radiation efficiency. The image pickup apparatus has a heat sink-cum-duct disposed between a pair of cover members that constitute left and right exteriors of an apparatus main unit and that are fixed to the heat sink-cum-duct. The heat sink-cum-duct has an opening formed to correspond to an air inlet port of an air cooling fan and has a plurality of fins, and sucks air through the opening from the outside. The sucked air is guided to the air inlet port of the cooling fan through a ventilation path defined by the plurality of fins.
Owner:CANON KK

Speaker diaphragm

A speaker diaphragm that has a high heat-radiation efficiency. The speaker diaphragm includes a diaphragm main body made from a resin, and a metallic plate adhered to a major acoustic surface of the diaphragm main body adjacent a voice coil bobbin. The voice coil bobbin is attached to the diaphragm man body.
Owner:PIONEER CORP +1

Portable electronic apparatus

In a portable electronic device having two circuit boards having a heat generating electronic device, a frame arranged at a position pinched between the circuit boards, a first heat radiating plate brought into contact with the frame and having a higher thermal conductivity than the frame, and a second heat radiating member transferring a heat between the first heat radiating member and two circuit boards, each of two circuit boards is fixed to the frame and two circuit boards are directly connected by a connector. Accordingly, it is possible to provide the portable electronic device which can improve a heat radiating efficiency and achieve a further thin structure.
Owner:MAXELL HLDG LTD

Surface-mount device light emitting bulb with cylindrical heat radiation ring and application of bulb

The invention discloses a surface-mount device light emitting bulb with a cylindrical heat radiation ring. The surface-mount device light emitting bulb comprises a lamp holder component (2) with a driving component (3), the lamp holder component (2) is connected on a bulb shell (6), the cylindrical heat radiation ring (5.3) is arranged in the bulb shell (6), a surface-mount device light emitting component (1) is arranged on the outer surface of the heat radiation ring (5.3), a wire support (4.1) is arranged in the bulb shell (6), and a plurality of electric connection wires (4.2) connected with the driving component (3) are arranged on the wire support (4.1) and connected with the light emitting component (1). According to the light emitting bulb, a replaceable and standardized independent electric light source with high power can be achieved, light extraction efficiency is improved, the light emitting bulb can be operated in a closed lampshade, and the light emitting bulb is more convenient to assemble structurally and firmer in structure.
Owner:GUIZHOU GUANGPUSEN PHOTOELECTRIC

Led backlight unit

An LED backlight unit includes a light source; a board including a circuit pattern printed on an underside thereof, and having at least one mounting hole perforated therein where the light source is inserted; a metal chassis having an inside surface on which an underside of the light source is mounted, and receiving the board to be arranged in parallel to and with a gap from the metal chassis; and a reflector arranged on a top surface of the board to reflect light generated from the light source. The heat radiating path for transferring heat from the light source to the outside can be more simplified to enhance heat radiation efficiency thereby raising product reliability. The number of whole components can be reduced and the board with the light mounted thereon can be replaced with an inexpensive part thereby saving fabrication cost.
Owner:SAMSUNG ELECTRONICS CO LTD

Fan module having dust-collecting function and dust-collecting unit for the same

Disclosed is a fan module used in electronic equipment and the like. The fan module of the present invention comprises: a dust-collecting part which has an air-suction port and an air-discharge port, and which has a rotational region forming a passage linking the air-suction port to the air-discharge port and has a dust-collection box for collecting dust and detritus rotating in the rotational region; and a fan which is joined to one side of the dust-collecting part and makes air flow into the rotational region. The present invention can use centrifugal force to effectively remove various forms of dust and detritus contained in the air which flows into the casings of electronic equipment, household appliances and the like due to the action of a fan. Further, since a filter is not used, there is the advantage that the cooling efficiency is not reduced by the dust collection as the smooth flow of the air being sucked in is not disturbed. Further, from the long-term point of view, the thermal efficiency of electronic equipment and the like can be substantially improved as the amount of dust and detritus accumulated inside electronic equipment is minimised.
Owner:YOUN CHAN JOO

Lighting device

A lighting device is provided. The lighting device includes: a light source module mounted on a substrate; a lens unit provided on the light source module and including an accommodating groove accommodating the light source module; a housing unit accommodating the lens unit therein to protect the lens unit from an outside; a supporting unit fixed to the substrate and including a coupling hole having the housing unit coupled thereto to thereby support the housing unit; and a height adjustment unit allowing the housing unit to be vertically-movably coupled to the supporting unit and adjusting a height of the lens unit such that the height of the lens unit is varied.
Owner:SAMSUNG ELECTRONICS CO LTD

Semiconductor device, method for assembling semiconductor device

A semiconductor chip 36 is mounted on a package substrate 30 with its circuit side facing to a board 38. Heat is dissipated from an upper side of the semiconductor chip 36 opposite to the circuit side. A sealing resin 32 seals around the periphery of the semiconductor chip 36 so that the upper side of the semiconductor chip 36 is exposed to atmosphere. A fixing member 34 is buried in the sealing resin 32 so that a hook 40 formed on the tip of the fixing member 34 extends above the upper side of the semiconductor chip 36. A spreader 10 dissipates heat emitted from the semiconductor chip 36. A guiding slot 12 is formed on the side facing to the package substrate 30 of the spreader 10. The hooks 40 of the fixing members 34 are inserted into the guiding slots 12 respectively, and then the spreader 10 is rotated by predetermined angle against the package substrate 30. Then, the hooks 40 travel along the slots 12. Through such process, the spreader 10 is pulled to come into contact with the upper side of the semiconductor chip 36.
Owner:SONY COMPUTER ENTERTAINMENT INC

Light emitting diode module, backlight assembly and display device provided with the same

The present invention relates to a light emitting diode module, as well as a backlight assembly and a display device including the same. The light emitting diode module according to an exemplary embodiment of the present invention includes a printed circuit board having a plurality of junction holes, a plurality of light emitting diodes having a light emitting portion for emitting light and a lead portion with one end electrically connected to the light emitting portion and the other end positioned in a corresponding junction hole, and a junction member filled in the corresponding junction hole in which the lead portion is positioned.
Owner:SAMSUNG ELECTRONICS CO LTD

Power storage apparatus and cooling system

To provide a power storage apparatus which can achieve improved heat radiation of a power storage unit, a power storage apparatus has a power storage unit including an electrode element placed with an electrolyte layer, and a case housing the power storage unit and a cooling fluid which is used for cooling the power storage unit and is in contact with at least the electrode element.
Owner:TOYOTA JIDOSHA KK

Printed circuit board and method for manufacturing the same

Disclosed herein are a printed circuit board and a method for manfuacturing the same, the printed circuit board including: a base substrate having circuit patterns; and heat radiating vias having a donut shape, formed in the base substrate, so that the heat radiation efficiency may be improved by increasing the area of the heat radiating via.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD

Light emitting module

Disclosed is a light emitting module capable of representing improved heat radiation and improved light collection. there is provided a light emitting module. The light emitting module includes a metallic circuit board formed therein with a cavity, and a light emitting device package including a nitride insulating substrate attached in the cavity of the metallic circuit board, at least one pad part on the nitride insulating substrate, and at least one light emitting device attached on the pad part.
Owner:LG INNOTEK CO LTD

Power transmission apparatus

A power transmission apparatus includes a pulley 1 having a belt attached thereto to transmit the rotating drive force, a hub 2 which connects the pulley to a rotating shaft of a driven device, a bearing 7 which rotatably supports the pulley, and a sleeve ring 5 which is fitted and secured to the pulley and attaches the bearing to the pulley to prevent it relatively moving. The sleeve ring is provided, on its first end opposite to the driven device, with a bent portion 5b against which the bearing abuts to restrict further movement of the bearing. An annular retainer 6 is provided on the portion of the bearing adjacent to the drive device. The bearing is secured to the sleeve ring through the annular retainer by calking a second end 5a of the sleeve ring opposite to the first end. The sleeve ring is provided with a projection 5f which projects in the axial direction from the rear surface of the pulley and a casing 9 is provided with an annular groove 9c which at least partly receives therein the projection.
Owner:DENSO CORP

Camera apparatus

In this kind of related-art camera apparatus, since a lens apparatus is located on substantially the same axis of a disc drive apparatus or it is located distant from the disc drive apparatus with a large distance in the lateral direction, the whole of the camera apparatus is large in size and therefore it is not possible to make the whole of the camera apparatus compact in size. A camera apparatus includes a disc compartment portion (47) in which a DVD-R (8) is accommodated so as to be loaded and unloaded, a disc rotating apparatus (36) provided within the disc compartment portion (47) and rotating the DVD-R (8) which can be detachably loaded thereon, a lens apparatus (5) for passing light from an object, a CCD (6) for forming an image from light passed through the lens apparatus (5) and outputting an image signal corresponding to the image, an optical pickup apparatus (37) capable of recording image information on the DVD-R (8) based on the image signal outputted from the CCD (6) and a radiation plate (57) provided within the disc compartment portion (47). The radiation plate (57) and the CCD (6) are constructed so as to transmit heat therebetween so that heat can be radiated from the CCD (6) through the radiation plate (57) to the disc compartment portion (47).
Owner:SONY CORP
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