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34results about How to "Reduce heat accumulation" patented technology

Light emitting element and light emitting device using the light emitting element

The light emitting element includes a first electrode and a second electrode opposite each other and electrically connected respectively to a first conductive-type layer and a second conductive type layer constituting a semiconductor structure. The first electrode has a pair of electrode extending portions disposed opposite each other on an electrode forming surface over the first conductive-type layer which is positioned at the light extracting side. In the opposing direction of the pair of electrode extending portions, a half distance I1 between the electrode extending portions is smaller than the distance L2 from the electrode extending portions to an end edge of the electrode forming surface.
Owner:NICHIA CORP

High frequency pulse laser induced electrode directional discharging apparatus for roughing roller surface

The invention discloses the roller surface high-frequency impulse laser induced directional discharging hair device, comprising impulsing power source, high frequency pulse laser generator, discharged electrode and control device. The device comprises the following characteristics: the bipolar of impulsing power source connected with roller and discharged electrode, the discharged electrode placed on the laser focal point of laser generator, the control device controlling the impulsing power source and high frequency pulse laser generator. The device has good directionality, high working frequency, big power, and good hair controllability and homogeneity.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

High-cooling-efficiency FPC board used for camera module group and manufacturing method thereof

The invention provides a high-cooling-efficiency FPC board used for a camera module group and a manufacturing method thereof. The high-cooling-efficiency FPC board used for the camera module group is simple in structure, low in cost and quick in effect realization. The vacant positions in a circuit board area corresponding to mounted chip on the FPC board are provided with multiple window holes capable of penetrating through the FPC board. The positions, which are opposite to the window holes, of a steel reinforced piece arranged at the other surface opposite to the mounted chip on the FPC board are provided with bosses capable of inserting in the window holes. The mesa of the bosses is contacted with the heat-radiating surface of the mounted chip. The mesa of the bosses stretches out of the window holes to be contacted with the heat-radiating surface of the chip fit on the FPC board so that a part of heat generated by the chip is conducted to the whole steel reinforced piece through the bosses and guided away by the other surface of the steel reinforced piece in working of the chip. The phenomenon of heat accumulation caused by long time of working of the chip can be reduced so that the chip is enabled to work in the more stable state.
Owner:SHENZHEN HUALIN CIRCUIT TECH

Exposure method of exposure machine

The invention relates to an exposure method of an exposure machine. The exposure machine is provided with an exposure platform for bearing an object to be processed and a manuscript. The exposure method of the exposure machine comprises the following steps of: arranging at least one light source group for generating an exposure light source illuminating toward the exposure platform above the exposure platform; and enabling the exposure light source to reach a preset area of the exposure platform according to a preset path displacement mode of the light source group so as to expose and display the object to be processed on the exposure platform. In tThe invention, can greatly reduce the bulb number is greatly reduced, relatively reduce the size of the whole exposure machine is reduced relatively, decrease the equipment cost is decreased and lessen the occurrence frequency of the heat-collecting phenomenon of the exposure machine is reduced. Particularly, the light source group only needs an area illuminated by the exposure light source through the exposure platform so as to save unnecessary processing cost.
Owner:KINTEC PRECISION MACHINERY

IGBT parallel static current sharing circuit

The invention provides an IGBT parallel static current sharing circuit which has advantages of static current sharing, accurate and reliable current sharing adjustment, stable switching frequency, long service life, and high suitability for power electronic equipment which requires IGBT parallel connection and is on for a long time period. The IGBT parallel static current sharing circuit comprises a global control circuit, at least two parallel IGBTs, and local feedback control circuits which are arranged in one-to-one correspondence with the IGBTs. The emitter electrode of each IGBT is connected with the input end of a corresponding local feedback control circuit, and the gate electrode is connected with the output end of the corresponding local feedback control circuit. The local feedback control circuits are connected with the global control circuit. The local feedback control circuits are used for adjusting the amplitude of a driving signal transmitted to the corresponding IGBT according to the acquired feedback signals and a reference signal that is transmitted by a global driving time delay control module. The global control circuit is used for computing the reference signal of the local feedback control circuit according to each IGBT current.
Owner:XI AN JIAOTONG UNIV

Anti-track bituminous pavement cooling structure and material composition of each layer thereof

PendingCN110499687AReduce road ruttingReduce road temperatureIn situ pavingsLower faceRoad surface temperature
The invention discloses an anti-track bituminous pavement cooling structure and a material composition of each layer thereof. The anti-track bituminous pavement cooling structure comprises a low-heatconduction upper face layer, a heat storage intermediate face layer and a high-heat-conduction lower face layer from top to bottom. During construction, layered paving and rolling are combined, and tack coat is scattered between the layers. According to the anti-track bituminous pavement cooling structure, a pavement structure actively carries out temperature control on a bituminous pavement, andpavement tracks are reduced by reducing the temperature of the intermediate face layer and the lower face layer of the bituminous pavement. According to the anti-track bituminous pavement cooling structure, the bituminous pavement structure with the low-heat conduction upper face layer, the heat storage intermediate face layer and the high-heat-conduction lower face layer is adopted, the pavementtemperature is reduced to the maximum degree through heat induction and phase change heat storage, and the cooling effect is remarkable. According to the anti-track bituminous pavement cooling structure, heat insulation fibers are added to the material of the low-heat conduction upper face layer, the high-temperature performance of a mixture can be improved while the heat conduction performance ofthe pavement, and the anti-track capacity of the upper face layer is improved.
Owner:CENT SOUTH UNIV

Exposing machine and exposing method thereof

The invention discloses an exposing machine and an exposing method thereof. A strip light source irradiating towards the shift stroke of an exposing platform is at least generated at a position inside an exposing chamber relative to the upper part or the lower part of the shift stroke of the exposing platform; and the exposing platform receives the irradiation of the strip light source in a mode of relative displacement with the strip light source at a predetermined speed so that a processed object on the exposing platform finishes exposure and development. The number of bulbs can be greatly reduced, the volume of the integral exposing machine is relatively reduced, the equipment cost is reduced, and the heat concentration phenomenon of the exposing chamber is reduced; and in particular, the exposing platform passes through the exposing platforms in turn by adopting a mode of continuous cyclic conveying so as to promote the processing capacity of the exposing machine.
Owner:E WAY TECH

Quantum dot light-emitting diode and preparation method thereof

The invention provides a quantum dot light emitting diode which comprises: a cathode and an anode which are oppositely arranged; a quantum dot light-emitting layer that is arranged between the cathodeand the anode; a lamination layer that is arranged between the cathode and the quantum dot light-emitting layer and comprises a first metal oxide nanoparticle layer and a mixed material layer arranged on the surface, opposite to the quantum dot light-emitting layer, of the first metal oxide nanoparticle layer, wherein the mixed material layer comprises first metal oxide nano particles and secondmetal oxide dispersed in gaps of the first metal oxide nano particles, and the first metal oxide nano particles in the first metal oxide nano particle layer are electron transport materials; in addition, in the mixed material layer, the content of the second metal oxide is gradually increased along the direction from the quantum dot light-emitting layer to the cathode.
Owner:TCL CORPORATION

Method Of Writing Data On A Master Substrate For Optical Recording

The present invention relates to a method of writing data on a master substrate (10) for optical recording, the master substrate comprising a recording layer (12) and a substrate layer (14), and the recording layer comprising a phase-change material the phase of which can be transferred from crystalline to amorphous by projecting light on the recording 5 layer, the method comprising the steps of: writing a first amorphous mark (32) from a plurality of amorphous marks on the master substrate by at least one write pulse, and providing a cooling gap before the next amorphous mark (32) will be written.
Owner:MOSER BAER INDIA

Differential pressure type self-adjusting valve

The invention belongs to the technical field of airplane fuel heat managing, and particularly relates to a differential pressure type self-adjusting valve. The valve comprises a shell, a base, a valvebody, a top cover and a piston. The shell is provided with a first connecting part, a second connecting part and a third connecting part, the third connecting part is provided with a cavity C, a baseis arranged in the shell, the base is connected with the second connecting part, the base is provided with a cavity B, a valve connecting part of the valve body is in abut joint with the base, a center shaft is sleeved with a first spring, one end of the top cover is connected with the first connecting part of the shell, the other end of the top cover is provided with a twisting-in type pipe joint, a piston head of the piston is arranged in the first connecting part of the shell and is in abut joint with the top cover, a cavity A is formed between the head of the piston and the twisting-in type pipe joint, a piston rod penetrates through a first through hole of the base and a second through hole of a valve body, the ladder part of the piston rod is in abut joint with the first spring, thepiston is sleeved with a second spring, and the two ends of the second spring are limited through the head of the piston and the base correspondingly. According to the self-adjusting valve, the opening degree of the valve can be self-adjusted, and the cooling property can be improved.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA

Forming structure of fluorescent powder colloid of light-emitting module and manufacture method thereof

The invention relates to a forming structure of the fluorescent powder colloid of a light-emitting module and a manufacture method thereof. The manufacture method comprises the following steps of: forming a circuittopology line on the surface of a circuit board; arranging a plurality of line points on the circuittopology line; then, respectively and electrically connecting electronic elements and a plurality of luminescent grains with the line joints; encircling the exteriors of the plurality of luminescent grains on the surface of the circuit board with a colloid ring; coating in a fixed range by the encirclement of the colloid ring with fluorescent powder colloid so that the visible light-emitting surfaces of the luminescent grains and the surface of the circuit board between the adjacent sides of the luminescent grains are coated with the fluorescent powder colloid; and roasting to form the light-emitting module. In the manner, the fluorescent powder colloid coated on the surface of the circuit board can generate a ductile surface light source because of a light overlapping area formed by lateral light between the adjacent sides of the luminescent grains. The fluorescent powder coating manner can improve the luminescence efficiency, the ray casting illumination and the luminescence evenness.
Owner:PROVISION BUSINESS & TECH CONSULTING SERVICES

A liquid-cooled computer host system

The invention discloses a liquid-cooling computer host system. The computer host system comprises a host shell (1), a vertical plate (2) vertically fixed in the host shell (1), as well as a liquid-cooling plate (3) covering the outer side of the vertical plate (2). According to the computer host, a hard disk, a mainboard and a power supply are arranged on the vertical plate vertically placed in the host shell, so that heat accumulation of the components can be greatly reduced. In addition, the liquid-cooling plate is arranged on the outer sides of the vertical plate and the components, so that the temperature in the shell can be further reduced. A water storage bag is arranged on the lower part of the liquid-cooling part, so that the water storage quantity can be increased, and the temperature in the liquid-cooling plate can be kept stable. In addition, a water inlet and a water outlet are formed in the bottom of the liquid-cooling plate, so that water in the liquid-cooling plate can be changed safely and effectively.
Owner:XINXIANG MEDICAL UNIV

Pre-oxidation furnace for carbon fiber production

The invention relates to the technical field of carbon fiber production, and discloses a pre-oxidation furnace for carbon fiber production. The pre-oxidation furnace comprises an outer sleeve, tows, an air blower and a heater, wherein an air collecting hole is formed in the top of an inner cavity of the outer sleeve; the air collecting hole communicates with the air blower through a guide pipe; and the air blower communicates with the heater through a guide pipe. Through the arrangement of a supporting pipe and a movable plate, when hot air is injected into the right side of the movable plate,the movable plate is pushed to move leftwards after the pressure becomes larger and larger and reaches a certain pressure value, a conical nozzle is movably connected with a high-temperature-resistant rubber sleeve II in a sleeved mode, a ventilation groove channel in the supporting pipe is opened, the hot air on the right side of the movable plate is ejected leftwards in parallel with relativelyconstant pressure along a ventilation groove to heat the tows, the hot air and the tows are in a horizontal state, a certain temperature gradient is presented in an oxidation furnace from right to left, and the temperature is sequentially decreased from right to left, so that the tows are gradually heated and pre-oxidized after entering the oxidation furnace from the left side of the oxidation furnace.
Owner:舒刚勇

Packaging structure and packaging method of semiconductor chip

The invention relates to the technical field of semiconductor packaging, and discloses a packaging structure and a packaging method of a semiconductor chip. The packaging structure of the semiconductor chip comprises a wafer, an insulation structure and a conductive part. A functional area and electrodes are arranged on the first surface of the wafer, the electrodes are distributed at intervals in the circumferential direction of the functional area, and the side walls, away from the functional area, of the electrodes are obliquely arranged; the insulating structure covers the first surface, one side of the insulating structure facing the wafer is provided with an accommodating space, the functional area is arranged between the accommodating space and the first surface, and the side wall of the insulating structure is obliquely arranged and is coplanar with the side wall of the electrode away from the functional area to form a cutting slope inclining towards the middle of the insulating structure; and the conductive part covers the cutting inclined surface and is electrically connected with the electrode, and the conductive part extends to the end surface, opposite to the wafer, of the insulating structure along the outer contour of the insulating structure. According to the invention, the conductive part is of a planar structure on the side wall of the chip, so that the number of inflection points on the conductive part is reduced, and the structural strength and durability of the conductive part are ensured.
Owner:苏州科阳半导体有限公司

Formula process of interior wall paint capable of purifying air

The invention discloses a formula of an interior wall paint capable of purifying air. The interior wall paint comprises the following components: 122 parts of water; 3 parts of cellulose; 4 parts of a wetting agent; 3 parts of a dispersant; 1 part of a stabilizer; 5 parts of a leveling agent; 200 parts of titanium dioxide; 50 parts of barite; 50 parts of tourmaline powder; the mixing agent comprises the following components in parts by weight: 500 parts of acrylic emulsion; 3 parts of a defoaming agent; 20 parts of an anti-freezing agent; 2 parts of a preservative; 3 parts of a mildew preventive; and 30 parts of a coalescing agent. By adding the tourmaline powder, the titanium dioxide and the barite for radiation protection, negative ions released by the tourmaline powder are released into air, TVOC, formaldehyde, benzene and ammonia in the air can be degraded, meanwhile, peculiar smell molecules and harmful bacteria in a room are killed, effective air purification is formed, and the service life of the air purifier is prolonged. In addition, release of negative ions can improve air quality and enhance human immunity.
Owner:陈志岳

Safety system for energy storage battery container

The invention provides a safety system for an energy storage battery container. The safety system comprises a control device, a battery rack, a safety buffer door and a sensor arranged in a battery box. When the sensor detects that a battery in the battery box breaks down, the sensor transmits a signal to the control device, and the control device starts the driving device of the battery rack to enable the bendable supporting legs of the battery rack to bend, so that the battery rack topples towards a roller shutter door plate of the safety buffer door. The rigid strip on the lower portion of the roller shutter door plate plays a role in buffering the toppled battery rack under the keeping of the limiting part, and when the upper end of the roller shutter door plate is broken under the acting force of the battery rack, the roller shutter door plate is separated from the constraint of the limiting part, so that the battery rack is poured out of the container. The battery rack is triggered to be separated from the container in a non-manual mode, the fire fighting risk and difficulty are reduced, and fire spreading and expanding can be rapidly restrained.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI +1

Novel energy-saving lamp

The invention discloses a novel energy-saving lamp. The novel energy-saving lam comprises a lamp holder, a ballast cover, a lamp filament, a tube, an energy-saving electronic rectifier and a tube connected thermal protection shield, wherein the lamp filament is installed in the tube; rare earth powder is sprayed on the inner wall of the tube; the energy-saving electronic rectifier is installed in the ballast cover; the tube connected thermal protection shield is arranged at the combing part of the tube and the ballast cover; a screw connecting column and a lamp wick wire jacket base are arranged on the upper end surface of the tube connected thermal protection shield; a cavity is arranged at the lower end of the tube connected thermal protection shield; a positioning base and a control system are arranged in the cavity; a radiator is arranged in the tube connected thermal protection shield; heat emission holes are formed in the tube connected thermal protection shield; and the radiator is connected with the control system. The novel energy-saving lamp has the advantages that the tube connected thermal protection shield is arranged at the combining part of the tube and the ballast cover and adopts a rotatable structure, and a self-locking buckle is arranged on the inner wall of the tube connected thermal protection shield, so that the novel energy-saving lamp can not only emit heat inside the tube and reduce accumulated heat heating inside the energy-saving lamp, but also effectively prevent mosquitoes and dust from entering the lamp and increase the service life of the tube.
Owner:WUNING HUAYANG IND

Assembled low-frequency transformer

The invention discloses an assembled low-frequency transformer, and specifically relates to the technical field of low-frequency transformation. The assembled low-frequency transformer comprises a base and inner core columns, wherein sliding grooves are formed in the two sides of the base, the inner core columns are connected to the two sides of the base in an attached and sleeved mode, sliding blocks are fixedly connected to one sides of the inner core columns, first threaded caps are embedded in one sides of the inner core columns and one sides of the sliding blocks, a first threaded columnis connected into the two first threaded caps in a threaded mode, the interior of the first threaded column is attached to one sides of the interior of the sliding groove, and the sliding block is slidably connected into the sliding groove. According to the invention, by arranging the inner core column, the outer core column, the coil winding and the isolation pad, the adjustment and adaptation ofthe structure by workers are significantly facilitated, and the structure can be adjusted only by screwing the fixed fourth threaded column and second threaded column without using additional auxiliary instruments, so that the overall power of the adaptive coil winding is effectively adjusted, the heat accumulation phenomenon caused by overvoltage is effectively reduced, and the adaptation durability is significantly improved.
Owner:永州美凯电子有限公司

Method for manufacturing an embedded package and structure thereof

A method for manufacturing an embedded package comprises the steps of: coupling at least one first embedded body including at least one connection port with a first circuit substrate and packaging the first embedded body and the first circuit substrate to form a package; and exposing the connection port of the package on an outer side of the package for other electronic carriers to couple with. The invention can overcome the disadvantage of the conventional System in Package manufacturing process which integrally packages multiple ICs in a same package to result in discard of the entire package because of failure of a single IC. The method of the invention makes assembly simpler, expansion, test and replacement of IC components easier, and also can reduce manufacturing time and accumulated heat, lower the cost and improve yield rate.
Owner:APTOS TECH

A kind of energy-saving lamp

The invention discloses a novel energy-saving lamp. The novel energy-saving lam comprises a lamp holder, a ballast cover, a lamp filament, a tube, an energy-saving electronic rectifier and a tube connected thermal protection shield, wherein the lamp filament is installed in the tube; rare earth powder is sprayed on the inner wall of the tube; the energy-saving electronic rectifier is installed in the ballast cover; the tube connected thermal protection shield is arranged at the combing part of the tube and the ballast cover; a screw connecting column and a lamp wick wire jacket base are arranged on the upper end surface of the tube connected thermal protection shield; a cavity is arranged at the lower end of the tube connected thermal protection shield; a positioning base and a control system are arranged in the cavity; a radiator is arranged in the tube connected thermal protection shield; heat emission holes are formed in the tube connected thermal protection shield; and the radiator is connected with the control system. The novel energy-saving lamp has the advantages that the tube connected thermal protection shield is arranged at the combining part of the tube and the ballast cover and adopts a rotatable structure, and a self-locking buckle is arranged on the inner wall of the tube connected thermal protection shield, so that the novel energy-saving lamp can not only emit heat inside the tube and reduce accumulated heat heating inside the energy-saving lamp, but also effectively prevent mosquitoes and dust from entering the lamp and increase the service life of the tube.
Owner:WUNING HUAYANG IND

Liquid-cooling computer host system

The invention discloses a liquid-cooling computer host system. The computer host system comprises a host shell (1), a vertical plate (2) vertically fixed in the host shell (1), as well as a liquid-cooling plate (3) covering the outer side of the vertical plate (2). According to the computer host, a hard disk, a mainboard and a power supply are arranged on the vertical plate vertically placed in the host shell, so that heat accumulation of the components can be greatly reduced. In addition, the liquid-cooling plate is arranged on the outer sides of the vertical plate and the components, so that the temperature in the shell can be further reduced. A water storage bag is arranged on the lower part of the liquid-cooling part, so that the water storage quantity can be increased, and the temperature in the liquid-cooling plate can be kept stable. In addition, a water inlet and a water outlet are formed in the bottom of the liquid-cooling plate, so that water in the liquid-cooling plate can be changed safely and effectively.
Owner:XINXIANG MEDICAL UNIV
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