50results about How to "Prevent heat dissipation" patented technology

A charging apparatus for electrically charging a capacitor storage type power source comprises a switching circuit for turning on/off the charge current, a current detection circuit for detecting the charge current, a voltage detection circuit for detecting the voltage of power source, a constant current control circuit for outputting an error amplifying signal according to the current value, a power control circuit for outputting an error amplifying signal according to the current value, the voltage value-and a power reference value, a constant voltage control circuit for outputting an error amplifying signal according to the voltage value and a voltage reference value, an OR circuit for selecting one of the error amplifying signals and a control circuit for generating a pulse width modulation signal according to the error amplifying signal output from the OR circuit to turn on/off the switching circuit and control the charge current.

The invention relates to a sectional step type circulating integration culturing system, in particular to a Penaeus vannamei Boone sectional step type circulating integration culturing system and a culturing method. The interior of a pond is provided with a sectional step type culturing mechanism, a blow-off circulating spraying mechanism and a fishing mechanism. The culturing method comprises the following steps of cleaning and treatment of the pond, feeding of fries in the primary phase, oxygenating in the pond, feeding of bait, adjusting of water quality, water circulation and dirt suction, patrol and observation of the pond, culturing management, flow line circulating culturing, and fishing at a centralized fishing area. The Penaeus vannamei Boone sectional step type circulating integration culturing system and the culturing method have the advantages that the structure is compact and reasonable, the multi-time culturing is realized in one year, the comprehensive cyclic utilization is realized, the culturing cost is reduced, and the quality of Penaeus vannamei Boone is improved.

An image forming apparatus capable of minimizing a temperature rise of a cover by substantially preventing heat emission from a fusing device to an outside is disclosed. The image forming apparatus includes a main body, a fusing device mounted in the main body, the fusing device having an outlet to discharge paper, an opening/closing member opening and closing the outlet of the fusing device, a cam member moving the opening/closing member between a first position in which the opening/closing member closes the outlet to prevent heat in the fusing device from being emitted through the outlet and a second position in which the opening/closing member opens the outlet to permit the paper to pass through the outlet, a driving part rotating the cam member, and a control unit controlling the driving part to determine a rotational position of the cam member.

The present invention can provide an optical device, an optical uniform device, an optical sheet and a backlight unit and a display apparatus. In the present invention, a lamp image can be removed by uniformly emitting incident light from a plurality of light sources. Further, even if a distance between a light source and an optical device and between a light source and an optical uniform device are short, warpage due to heat generated from a light source does not occur.

An electric work vehicle includes: a battery pack that is arranged between a left rear wheel arranged outside of a left frame and a right rear wheel arranged outside of a right frame, the front end of the battery pack being located forward of an axle center of a rear wheel unit; a left motor that is arranged above the battery pack, in the periphery of the left rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the left rear wheel; and a right motor that is arranged above the battery pack, in the periphery of the right rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the right rear wheel.

The transfer-fixing device includes an image carrier, a pressing member, a heater, and an electrical field generator. The image carrier carries a toner image. The pressing member presses against the image carrier to form a transfer-fixing nip between the pressing member and the image carrier. The heater heats the toner image carried by the image carrier so that a temperature of the toner image is not higher than Tm +10 degrees centigrade when a toner softening point is Tm degrees centigrade. The electrical field generator forms a transfer electrical field at the transfer-fixing nip.

The invention discloses a topological insulator heterogeneous composite film with a high spin polarized electron transport channel, and the topological insulator heterogeneous composite film comprises a 6H-SiC (0001) or SrTiO3 substrate and topological insulator 6QLBi2Se3 and ordinary semiconductor 3QLSb2S3 which are in order grown on the substrate by a molecular beam epitaxy technology in an ultra high vacuum system. Through coverage of the surface of topological insulator Bi2Se3 with the Sb2S3, the electrical properties of the composite film are significantly improved compared with that of a pure Bi2Se3 film; the Dirac point is changed from 0.1eV less than valence-band maximum to 0.09eV higher than valence-band maximum, Fermi velocity is improved from 1.15 eV. Angstrom to 1.61eV. Angstrom, spin polarization rate is also increased from 0.65 to 0.91; at the same time, the width of the spin polarized electron transport channel is improved from about 1nm to 3nm, and can be further expanded according to the needs by increasing of the Sb2S3 covering layer thickness; and the Sb2S3 covering layer can reduce influence on the spin polarized electron flow transport channel due to surface contamination such as oxidation and the like.

The invention discloses a metal mine refuge chamber system. The metal mine fugue chamber system comprises an oxygen supply sub system including a compressed air system oxygen supply mode, a compressed oxygen supply mode and a self-rescuer oxygen supply mode, a dehumidifying and cooling sub system, an air purifying sub system, a protective closing sub system, a power supply sub system, an environment monitoring sub system and a communication sub system. Moreover, the metal mine refuge chamber system further comprises an emergency air exhaustion device and an accessorial sub system. The metal mine refuge chamber system solves the problems that the existing metal mine refuge chamber system has no formed technology and product at home, cannot cope with catastrophes of metal mine, and is short in rescuable time. According to the invention, survival time of more than 96 hours can be provided in the chamber under the condition that the power supply is cut off by the catastrophes, basic survival conditions can be ensured by ventilating and exhausting via the corresponding pipelines when the roadway has serious water inrush or inundation, and emergency refuge of at least 96 hours can be provided when hazardous gases, fumes and poison gases appear in flood and fire hazard, and thus the metal mine refuge chamber system is applicable to the metal mine or underground engineering in a firm rock structure.

The present invention relates to liquid insulating device, and is especially one kind of thermos kettle with high heat insulating performance, simple structure and fine decoration. The structure of the thermos kettle includes at least one kettle body, one kettle cover and one kettle spout extending outwards from the kettle body. The kettle body in improved structure is one three-layer structure comprising inner container of metal material, filler layer of heat insulating material and outer casing of ceramic material.

The invention discloses a photo-thermal interface evaporator and a preparation method and application thereof. The photo-thermal interface evaporator comprises a base, the base is a hydrophilic base and is provided with a bearing face, and the bearing face is the upper surface of a plurality of sharp protrusions distributed in an array mode; and the photo-thermal film is positioned on the bearing surface. According to the photo-thermal interface evaporator, the total area of the bearing face is controlled through the sharp protrusions distributed in the array mode, the contact area between the base and the photo-thermal film can be greatly reduced, heat conduction from the photo-thermal film to the base is effectively reduced, and the photo-thermal interface evaporator with low heat dissipation and high heat accumulation is formed. Compared with a conventional evaporator, the photo-thermal interface evaporator has the advantages that heat dissipation is effectively inhibited, heat accumulation is improved, the evaporation rate and energy efficiency of a photo-thermal interface evaporation system are improved, and the evaporation rate can be increased by 10-100%.

An electronic protection component comprises an outer case bounding an outer cavity therein; a varistor with a first varistor lead connected to a first varistor electrode and a second varistor lead connected to a second varistor electrode, wherein the varistor is placed in the outer cavity; a low melting point alloy wire with a first thermal fuse lead in one end and a second thermal fuse lead in the other end; wherein either the first thermal fuse lead or the second fuse lead is connected to either the first varistor electrode or the second varistor electrode therefore forming a lead junction.

This invention discloses the methods and devices that the back beam hole heats and conserves in cryogenic conditions. The method adds heat air and steam in holes and leads to recycling use to hot air or hot steam. Heat the duct wall of concrete and anchors the heat head in the lateral fixation, so that the temperature of whole concrete reaches above 5 degree C and then grouting equipment will press grouting material into holes, through the duct wall the heat from concrete of curing the agent pressed into the filling. After grouting material, fix insulation material at beam anchors to avoid filling material freeze; thereby protection beams from freeze to crack. With beneficial effects of high efficiency, energy saving, construct safety.

The invention relates to an injector device with plastic for repairing cracks, which has an injector gun with an injector nozzle for the outlet of the plastic on a first end, a collector for receiving plastic beads connected to the second end of the injector gun, supply means configured to move the plastic beads from the collector along the injector gun to the injector nozzle, and heating means along the injector gun in order to heat the plastic beads until they are in a liquid state before the outlet thereof through the injector nozzle.

The invention relates to a reservoir tank for a reducing agent (1), in particular an aqueous urea solution for the after-treatment of exhaust gas from a combustion engine, comprising an outer container (2) and a pot-shaped inner container (3) which limits a partial volume (4) of the volume (5) of the outer container (2), a heating element (6) which is set in the inner container (3) and an extraction device (7) for extracting the reducing agent (1). According to the invention, the pot-shaped inner container (3) is surrounded in the floor region by an insulated collar (8) comprising a first limb (9) led to the outer circumferential surface (11) of the inner container (3) and a second limb (10) contacting the floor surface (12) of the outer container (2), such that the insulated collar (8) limits an additional partial volume (13) of the volume (5) of the outer container (2).

The invention provides a radiator and communication equipment. Comprising a substrate, a heat dissipation structure and a cooling medium. The heat dissipation structure comprises a connecting part and a tooth part which are of an integrated structure, the connecting part is connected with the substrate, an included angle is formed between the tooth part and the connecting part, the tooth root of the tooth part is connected to the connecting part, the tooth top of the tooth part is far away from the connecting part, a cooling flow channel is formed in the heat dissipation structure, and the cooling flow channel is communicated with the cooling flow channel. The cooling flow channel extends from the connecting part to the tooth part and extends between the tooth root and the tooth top; and the cooling medium flows in the cooling flow channel so as to dissipate heat of the substrate. According to the technical scheme, the heat conduction capacity of the radiator can be improved, and the radiating reliability is good.

A diffractive optics element includes a substrate configured of a sapphire substrate and a diffractive optics structure, provided on the substrate, that forms an image when a laser beam is incident thereon. The diffractive optics structure has a diffractive optics portion, and the diffractive optics portion has a base material and a diffractive optics layer disposed on the base material. The thickness of the base material is no greater than 20 μm.

The invention discloses a multifunctional coal dryer. The multifunctional coal dryer structurally comprises a dryer body, a right fixing plate, a tool box, a display screen, an operation key, a box door, a control box, a fixing frame, an observation window, an upper cover, a pull ring, a hinge, a turning plate, a left fixing plate and a handle. The right end of the left fixing plate is fixedly connected with the left end of the dryer body. The right end of the right fixing plate is attached with the left end of the tool box, the left end of the control box is fixedly connected with the right end of the right fixing plate through screws, the front end of the control box is in clearance fit with the rear end of the box door, the front end of the box door is movably connected with the rear end of the operation key, and the inside of the operation key is electrically connected with the inside of the display screen. The multifunctional coal dryer is structurally provided with the dryer body. The device firstly pulverizes massive coal to reduce the size of the coal, and then the coal is fully dried through tumbling drying, the coal combustion efficiency in the later stage is improved, the heat is prevented from dispersing due to moisture during coal combustion, the energy utilization is improved, and the energy is saved.