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372results about How to "Increase cooling area" patented technology

OLED display device

The invention provides an OLED display device. A plurality of projections are arranged on one surface of a side, positioned close to an OLED device, of a cover plate substrate; outer surfaces of the cover plate substrate and the plurality of projections are wrapped with heat conduction layers, heat radiation area and heat radiation efficiency of a cover plate can be increased, service life of the OLED device can be prevented from being reduced due to heat accumulation, and the cover plate is enabled to be high in mechanical strength; a first heat conducting and light shielding layer including graphene and light shielding material is coated on an outer side of sealing gum, on an area, positioned outside the sealing gum, of the cover plate and on an area, positioned outside the sealing gum, of a base plate; a second first heat conducting and light shielding layer is coated on an area, positioned outside a part corresponding to the OLED device, of a bottom part of the base plate; the OLED display device can be prevented from all-around light leakage while air tightness of the OLED device can be enhanced, external moisture can be effectively prevented from permeating the OLED device, the service life of the OLED device can be prevented from being affected, heat radiation efficiency of the OLED display device can be further improved due to excellent thermal conductivity and electrical conductivity of the graphene material, the OLED display device can be free from static electricity, and product quality can be improved.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Measurement device, with step-shaped cone, absorbing all energy of high-energy laser

The invention provides a measurement device, with a step-shaped cone, absorbing all energy of a high-energy laser. Light enters an absorbing cavity from the entrance of an energy meter, arrives in a reflection body in an incident mode and can be absorbed by the absorbing cavity after being reflected by the reflection body, and temperature rise of each region of an absorbing body is measured by a temperature measurement component and is combined with quality and specific heat of combustion to work out the energy increment of each region. Water channels are formed in the wall of the reflection body and the wall of the absorbing body respectively, and water is filled into the water channels to bring away most heat. Laser energy brought away by the water can be indirectly worked out through a water circulation component according to temperature changes and flow during the period from the time when the water enters the absorbing body and the reflection body to the time after the water departs from the absorbing body and the reflection body. The total energy of increment lasers can be worked out by a data collecting component according to energy measured by the temperature measurement component and energy measured by the water circulation component. Because the step-shaped emitting cone serves as the reflection body, the absorbing body is of a cylindrical structure, the effect caused by low laser induced damage thresholds, temperature measurement accuracy, heat loss and light energy escaping in the prior art is avoided, and the measurement device has the advantages of being high in efficiency ratio and testing efficiency and the like.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS

Motor rotor

The invention relates to a motor rotor, which comprises a rotor shaft and a rotor in a rat cage shape, wherein the rotor is tightly sleeved on the rotor shaft, the rotor comprises an aluminum injection end ring and a rotor iron core arranged in the aluminum injection end ring, the rotor iron core is formed by the overlap of a plurality of pieces of rotor punching sheets, a plurality of evenly distributed rotor punching sheet grooves are arranged on the rotor punching sheets, a rotor iron core groove is formed by the overlap of a plurality of rotor punching sheet grooves, the aluminum injection end ring is integrated into a whole through aluminum filled in the rotor punching sheet grooves and aluminum distributed at the end portion of the rotor iron core. The motor rotor is characterized in that a plurality of evenly distributed through holes are arranged on the rotor punching sheets, the through holes are distributed between the inner ring of the rotor punching sheets and the minimal inner diameter of the rotor punching sheet grooves, and the rotor through holes are formed by the overlap of the plurality of the through holes. The cooling effect is better and service life of enameled wires is greatly prolonged, as the axial direction of the air pressure produced by through holes themselves is in accordance with the axial direction of the air pressure produced by motor load, and simultaneously, the through holes enlarge cooling areas. In addition, the through holes on the rotor reduce the weight of the rotor and are helpful for improving motor starting performance, and the reduction of raw materials reduces motor cost.
Owner:MIDEA GRP CO LTD

Communication equipment chassis

The invention discloses a communication equipment chassis. The communication equipment chassis comprises a chassis body and a radiator, wherein the radiator comprises a base plate and a radiating module set; the base plate serves as a back sealing plate of the chassis body; the radiating module set is connected with the back of the base plate and comprises a plurality of radiating modules; each radiating module comprises a plurality of radiating tubes and a plurality of radiating fins; the plurality of the radiating tubes are connected with the back of the base plate; and the plurality of the radiating fins are connected by the radiating tubes. In the communication equipment chassis, a section bar radiator in the conventional equipment chassis is changed into the plurality of the radiating modules which comprise the radiating tubes and the radiating fins; the radiating modules form the radiating module set; the radiating fins are connected by the radiating tubes, so a radiating area is greatly increased compared with the section bar radiator on the premise of the same space volume by increasing the numbers of the radiating fins and the radiating tubes; an overall radiating area is further increased by increasing the number of the radiating modules; the radiating efficiency is increased; and the radiating equipment on the communication equipment chassis is met.
Owner:ALLWIN TELECOMM

Radiating structure for outer-rotor direct-current brushless motor

The invention discloses a radiating structure for an outer-rotor direct-current brushless motor. In the radiating structure, a radiating boss is machined on the inner wall of a stator protective end cover; the plane of the boss is in insulative close contact with a radiating plane of an electronic element on a direct-current electric control circuit board; and a groove is reserved on the outer wall, corresponding to the position of the boss, of the stator protective end cover. Because an original radiating bracket installation position of the electronic element is changed to the boss of the inner wall of the stator protective end cover from a stator bearing bracket, the radiating boss of the electronic element is far away from a stator winding heating source, and the stator winding heating source is prevented from diffusing and transferring directly through the stator bearing bracket in a split structure mode; and because the radiating groove is reserved on the outer wall of the radiating boss, on one hand, a radiating effect is improved by increasing a radiating area, on the other hand, the rigidity of a shell of a product is improved and material cost is saved. The radiating structure has high radiating efficiency, high rigidity and low production cost, and is suitable to be used in various outer-rotor direct-current brushless motors.
Owner:FOSHAN NANHAI DISTRICT DONGTANG ELECTRICAL MACHINERY FACTORY

High-power LED surface light source

The invention discloses a high-power LED surface light source. A high-power LED light source with high color rendering and low color temperature is manufactured by mixing the light of white LEDs and the light of red LEDs into white light according to a certain ratio; a single white LED is coated with fluorescent powder; LED chips are fixed in respective independent metal grooves; the bottom and the lateral surface of the grooves are respectively provided with a layer of highly reflective membrane; a red LED groove is arranged in the middle of a white LED groove; the interval between the grooves is not more than 2 mm; a single groove can be provided with a lens or the grooves can be integrally covered by the lens; and different light effects are obtained by mixing the light of the white LEDs and the light of red LEDs according to different ratios. Under the condition of the same color temperature, the high-power LED surface light source has high luminous efficiency and good color rendering index compared with like products; the LED chips are welded with a soft circuit board on a substrate by a gold wire or a copper wire to reduce the impact on the chips in the welding process and improve the service life of the chips; the soft circuit board is directly attached on the substrate; the white LEDs and the red LEDs are provided with power in a shunting way; and the current can be adjusted.
Owner:嘉兴嘉尼光电科技有限公司

LED (Light-Emitting Diode) lamp with ducted convection radiating channel

The invention discloses an LED (Light-Emitting Diode) lamp with a ducted convection radiating channel. The LED lamp mainly comprises a lamp cap, a radiating lamp body, a light distribution lamp shade, an LED light source and a driving circuit, wherein an inner bore of the radiating lamp body and an outer bore of the light distribution lamp shade are communicated to form a duct, and communicated with a vent hole at the upper part of the radiating lamp body to form a convection radiating channel, an external radiating fin is arranged outside the radiating lamp body, an internal radiating fin is arranged in the inner bore, the LED light source is arranged at the bottom of the radiating lamp body circularly, the driving circuit is arranged in a cavity formed by the lamp cap and the radiating lamp body, and a partition separates the driving circuit from the duct. An external power supply is introduced in the driving circuit by the lamp cap, and the driving circuit outputs current to drive the LED light source. By utilizing a chimney formed by a duct, the radiation capacity of the LED lamp is greatly enhanced, and the service life of the LED lamp is prolonged. If an active radiating device such a fan and the like is arranged in the duct, the LED lamp with larger power can be realized.
Owner:浙江光锥科技有限公司

LED (light emitting diode) automobile headlamp high beam optical module

The invention belongs to the technical field of automobile illumination, and particularly relates to an LED (light emitting diode) automobile headlamp high beam optical module, which comprises an LED light source, a reflector, a lens and a heat radiator, wherein a platform is arranged on the grid-shaped heat radiator, the heat radiator is connected with a base through a ball head connecting mechanism and a position regulating structure, the LED light source is arranged at a hollow part position of the reflector, in addition, the LED light source is connected with the platform, the reflector comprises a reflecting cup body, the reflecting surface of the reflecting cup is in an ellipsoidal surface shape, the lens comprises a planar incident surface allowing light rays to enter the lens, and also comprises an outer convex surface allowing the light rays to be emitted out, the outer convex surface is in an ellipsoidal surface shape, and the lens is fixedly arranged on the heat radiator through a lens support frame. The module has the advantages that the illumination effect is good, the illumination degree is high, the view sight is clear, a good heat radiation effect is also realized, and an automobile headlamp is enabled to be in a safe and stable work environment, so the running safety is greatly improved, and the service life of the automobile headlamp is prolonged.
Owner:ANHUI ZHANLAN OPTOELECTRONICS TECH

Drilling device with cooler

The invention discloses a drilling device with a cooler and relates to the field of drilling equipment. The drilling device with the cooler comprises a box body. The box body communicates with an airbag. A piston disc is arranged in the box body. The piston disc is slidably connected to the inner wall of the box body. The box body is partitioned into a first sealing cavity and a second sealing cavity by the piston disc. A rotary cylinder is arranged at the lower end of the piston disc. A drill bit rod is connected to a piston rod of the rotary cylinder. A drill bit is arranged at the end of the drill bit rod. An outer thread is arranged on the drill bit rod. A sleeve is arranged at the lower end of the box body. An inner thread matched with the outer thread on the drill bit rod is arranged in the sleeve. The box body communicates with air pipes. A one-way valve is arranged on each air pipe. All the air pipes are connected with a water storage tank. A water outlet is formed in the water storage tank. The water storage tank communicates with a water inlet pipe. Two hand-operated supports are arranged outside the box body. By the adoption of the technical scheme, the defects that during drilling of the drill bit, the drill bit is overheated due to friction heating and cannot be cooled in time are overcome, and the drilling device can be used for drilling of various workpieces.
Owner:安徽玉成光华铝业有限公司

Uniform-temperature heat dissipation device comprising cold plate array for power battery pack and processing method of heat dissipation device

The invention discloses a uniform-temperature heat dissipation device comprising a cold plate array for a power battery pack. The heat dissipation device comprises a heat sink shell, the cold plate array, an upper cover plate, a fan diversion cover and a fan, wherein the cold plate array comprises a plurality of heat dissipation assemblies in parallel, each heat dissipation assembly comprises a cold plate, a battery pack and a fixing strip, fin groups are processed at two ends of the cold plate, a heat pipe is packaged in a back plate of the cold plate and extends to bottom parts of the fin groups all the way, air inlets are formed in two surfaces of the heat sink shell, the plurality of heat dissipation assemblies are placed in the shell to form a heat dissipation array, the fan diversion cover is arranged outside the heat sink shell, a diversion cavity with a trapezoid cross section is arranged in the fan diversion cover, a relatively small end is flush with the air inlets, and the fan is arranged at a relatively large end. By the technical scheme, heat generated by a power battery pack of a new energy automobile during charging and discharging can be efficiently taken away on the condition of maintaining favorable temperature uniformity, so that reliable working of the automobile battery is maintained under a relatively good working temperature. The invention also provides a processing method of the heat dissipation device.
Owner:NANJING FORESTRY UNIV

Semiconductor cooling refrigerator and hot-end heat exchange device for same

The invention provides a semiconductor cooling refrigerator and a hot-end heat exchange device for the same. The hot-end heat exchange device comprises a hot-end heat transfer substrate, a plurality of radiation heat tubes arranged at intervals and radiating fins, wherein the hot-end heat transfer substrate is provided with a heat exchange surface in thermal connection with the hot end of a semiconductor cooling piece; each radiation heat tube is fixedly connected with the hot-end heat transfer substrate, and at least one end of each radiation heat tube is bent and extends to one side of the hot-end heat transfer substrate; the radiating fins are arranged at the parts, extending out of the hot-end heat transfer substrate, of the radiation heat tubes. According to the technical scheme, the radiation heat tubes are used for effectively conducting heat at the hot end, the radiating fins are used for enlarging the radiation area, and the characteristic that air is expanded when being heated and the density of the air is reduced is ingeniously used for automatically forming an air self-cycle to take away the heat of the fins, so that the working reliability of the semiconductor cooling piece is ensured; moreover, a machining process is convenient, and fit with a refrigerator structure is facilitated.
Owner:HAIER SMART HOME CO LTD
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