385results about How to "Improve fever" patented technology

The invention discloses a variable-frequency air-conditioner current frequency limiting method and device. A variable-frequency air-conditioner comprises a rectification circuit, a power factor correction PFC circuit and a compressor. The input end of the PFC circuit is connected with the output end of the rectification circuit. The output end of the PFC circuit is connected with the compressor. The method comprises the following steps that the input current effective value Iin_rms of the variable-frequency air-conditioner is acquired; the preset current frequency limiting threshold is subtracted from the input current effective value Iin_rms so that a current difference value of the input current effective value Iin_rms and the current frequency limiting threshold is acquired, and the current difference value is judged; if the current difference value is greater than or equal to a first threshold, the compressor is controlled to stop operation; and if the current difference value is greater than or equal to a second threshold and less than the first threshold, the compressor is controlled to perform underclocking operation according to the preset step length, wherein the second threshold is less than the first threshold so that output power is reduced by controlling operation frequency of the compressor and then an objective of reducing input current is achieved, the heating condition of an input circuit is improved and an over-current fault can be avoided.

The invention discloses a charging method. The method comprises the following steps: detecting current input by a mobile terminal; sending out a communication signal to a charger by the mobile terminal; if communication established between the mobile terminal and the charger is successful, collecting battery parameters by the mobile terminal; determining corresponding charging parameters according to the collected battery parameters by the mobile terminal; and sending the charging parameters to the charger by the mobile terminal. The charger can charge a battery according to the charging parameters determined in the mobile terminal; when the temperature of the battery is relatively low and lower than a threshold value and the potential safety hazard is relatively low, quick charging can be carried out by using high voltage and high current, so that the charging efficiency is quickened; and when the temperature of the battery is relatively high or when the battery is ready to be full, charging can be carried out by using safer voltage and current, so that the heating of the battery is reduced, and the safety of the battery is improved. The invention also discloses a charging device and a charger.

The invention discloses a flexible heating film assembly and a preparing method thereof. The flexible heating film assembly comprises a flexible heating layer. The flexible heating layer is formed by connecting five to one thousand heating film layers in a stacked mode. Loose and porous structures are formed between every two layers. A circuit system is connected to the flexible heating layer. At least one of the upper side and the lower side of the flexible heating layer is provided with a protecting layer. The multiple heating film layers of the flexible heating layer are connected in a stacked mode, the loose and porous structures are formed between every two layers, and by means of unique nanometer holes, the large long-diameter ratio and the large specific area, the flexible heating layer has large elasticity modulus and high bending strength, macroscopic flexibility and hand feeling comfort of the flexible heating film assembly are ensured; in addition, the flexible heating film assembly has ultra-thin thickness and high flexibility, is easy to process and form and resistant to detergent, and is an excellent insulating and heat preserving material.

The invention discloses a magnetic aggregation pulse eddy current coil detecting sensor. The magnetic aggregation pulse eddy current coil detecting sensor comprises a shell, a high-magnetic-conductivity ferro-magnetic material as an isolator is arranged between an exciting coil and a detecting coil, and a high-magnetic-conductivity ferro-magnetic material as a shielding cover is arranged on the outside of the exciting coil, so that a magnetic field distribution region generated by the exciting coil is centralized. Particularly, a signal source transmits a square signal to the exciting coil, the exciting coil is driven by the square signal to generate a magnetic field, after the detecting coil detects a magnetic field generated by the exciting coil, the magnetic field is superposed to a magnetic field generated by a component to be detected, the superposed magnetic fields are input to a data acquisition module through a wiring end, and finally, data are processed through an upper computer to obtain an acquired detecting signal.

The invention discloses a compound power supply control system based on a synchronous rectification Buck-Boost bidirectional DC (Direct Current) / DC (Direct Current) convertor. The system comprises a motor, a motor controller connected with the motor, a storage battery and a super capacitor, wherein the storage battery and the supper capacitor are respectively connected with the motor controller, the storage battery is connected with a power switch and then connected with the motor controller, the supper capacitor is connected with the bidirectional DC / DC convertor and then connected with the motor controller, the power switch comprises two P-channel MOS (Metal Oxide Semiconductor) transistors which are connected in parallel, the bidirectional DC / DC convertor comprises four N-channel MOS transistors and an energy storage inductor, every two of the four N-channel MOS transistors are formed as a half-bridge structure, the two ends of the energy storage inductor are respectively connected with the middle of the two half-bridge structures, the first half-bridge structure is connected with one end of the power switch, the other end of the power switch is connected with one electrode of the storage battery, the other end of the first half-bridge structure is connected with the other electrode of the storage battery, the other electrode of the storage battery is connected with one electrode of the supper capacitor, the second half-bridge structure is connected with the supper capacitor in parallel, and a PWM (Pulse Width Modulation) pulse is added on grids of the N-channel MOS transistors. The system discharges with large power, can be sued for improving the starting, acceleration and climbing performance of electromobiles, and prolonging the service life of the storage battery, and can charge with large power, so as to rapidly recycle the energy during the regenerative braking of the electromobiles and increase the driving mileage of the electromobiles on a single charge.

The invention provides a resource allocation method, terminal and computer readable storage medium; starting an application type by judging whether the application type of the current foreground running application of the terminal is a preset resource configuration or not; if yes, obtaining the current internal scene type of the foreground running application; determining a corresponding resourceconfiguration strategy according to a internal scene type and mapping relation between the preset internal scene type and the resource configuration strategy; configuration of system resources to foreground running applications by a control terminal according to a resource allocation policy .According to the specific application internal scene, an adaptive configuration of terminal system resources is applied to the foreground running application, the terminal system resources can be reasonably utilized according to the required allocation, and system resources are saved on the basis of guaranteeing the running performance of the foreground application , the heating condition in the foreground running resource high occupied application of the terminal can be improved to a certain extent, and the user experience is improved.

The invention discloses an input-voltage-self-adaption-based current frequency limiting method and apparatus of a power factor correction (PFC) circuit in a variable-frequency air conditioner. The output terminal of the PFC circuit is connected with a load being a compressor. The method comprises the following steps: obtaining a voltage effective value Vin_rms and a current effective value Iin_rms; obtaining a current frequency-limiting threshold value based on the input voltage effective value Vin_rms and controlling the compressor according to the current effective value Iin_rms and the current frequency-limiting threshold value; and controlling the compressor to carry out frequency-reduction operation when the current effective value Iin_rms being larger than the current frequency-limiting threshold value. Therefore, the output power is reduced; an objective of input current reduction is achieved; the heating situation of the input circuit is improved; and the system reliability is enhanced.

The invention relates to a voice coil motor, which comprises a mover and a stator, and is characterized in that the motor mover comprises at least two separate coils, and the two ends of the stator are open and form gap magnetic fields; the current in at least two separate coils of the mover is respectively coupled with at least one group of two gap magnetic fields at the two ends of the stator to generate a thrust doubling the magnetic field at one end. Heat generated by the motor coils can dissipate in the outside air through air flow in open air gaps, thereby providing the motor with stable performance to realize high high-speed and high-precision motion control for semiconductor equipment.

The invention belongs to the technical field of metallurgy, and particularly relates to a heat generating agent for steel making and a production method thereof. Photovoltaic cuttings and silicon carbide are pressed into balls. The heat generating agent for steel making is prepared by mixing photovoltaic cuttings and industrial silicon carbide and pressing the mixture into balls; and the heat generating agent is added in the converter and electric furnace smelting earlier stage to provide heat, accelerate slagging and optimize the smelting technique. The composition of the heat generating agent ensures the heating effect, and the raw materials have obvious environmental protection effect.

The invention discloses a heat generating agent for converter steelmaking. The heat generating agent comprises, by weight, 40-60% of industrial silica powder, 20-40% of AD powder, 10-30% of iron oxideraw materials, and the balance binding agents and additives. The main raw materials of the heat generating agent are waste having great impact on the environment and produced in industrial production. The raw materials are subjected to reasonable matching and are pressed into balls, then the heating effect is better than that of an existing equivalent heating agent, and a method for comprehensiveutilizing of the waste resources is found.

The invention relates to a mine trackless transport locomotive used for underground subsidiary transport, which comprises a pre driver chamber and a post driver chamber, a driving device, a battery, a load-bearing wheelbarrow, a hoist apparatus, a hydraulic system, an electrical control system, etc. A traction motor in the driving device and a hydraulic pump motor of the hydraulic system both adopt three-phase AC motors, which are provided with AC by the battery through a transducer. The electrical control system comprises of a programmable controller, the transducer, a speed and direction sensor, a pressure sensor, a photoelectric conversion isolation plate, a dashboard, a display board, an intrinsic safety power source, an explosion septal and intrinsic safe electric control box, etc. The traction motor of the trackless motor and the hydraulic pump motor adopt alternating current motors which have the advantages of light weight, small size, low price, convenient maintenance and wide application. The direct current in the battery is transferred into three-phase alternating current by the transducer to reduce attack of starting current on the motors and the battery, prolong the service life of the motors and improve power factor. When the transport locomotive is running declivous, the kinetic energy can be transferred into electric power to charge the battery, so as to realize power regenerative braking.

The invention discloses a novel mud therapy product for emitting heat by being applied outside human body, which is used for conditioning and relieving difficult and baffling joint pain symptoms such as cervical spondylosis, scapulohumeral periarthritis, prolapse of lumbar intervertebral disc, rheumatism, rheumatoid arthritis, hyperosteogeny and the like, and an application thereof. The mud therapy product consists of the following components in parts by weight: 10-80 parts of combined energy clay, 5-40 parts of a Chinese medicinal extract, 6-45 parts of a medical blender and 8-60 parts of beeswax. The mud therapy product disclosed by the invention has a rapid pain relieving effect on pain of neck, shoulders, waist, legs and joints and pain caused by various human body reasons; and compared with the conventional mud therapy product, the novel mud therapy product has the advantages: the service life is prolonged, and cost is saved.

The invention provides a fluoride-free exothermic insulating riser and a preparation method thereof and relates to an insulating riser and a preparation method thereof. The objective of the invention is to overcome the technical problems of insufficient heating, a poor insulating effect, occurrence of shrinkage cavities, the casting defect of shrinkage porosity, easy contamination of reused sand, long molding and production periods and high cost of conventional risers. The fluoride-free exothermic insulating riser is prepared from expanded perlite, quartz sand, aluminum powder, magnesium powder, iron oxide powder, potassium nitrate, sodium chloride, an alkaline phenolic resin, organic ester and a coupling agent. The preparation method comprises the following steps: 1, weighing raw materials; 2, preparing a mixed blank material; and 3, preparing the fluoride-free exothermic insulating riser. The riser provided by the invention is applied to preparation of nodular cast iron.

The invention relates to the technical field of electronic cigarettes, in particular to a heating wire component in an electronic cigarette and a welding method of the heating wire component. The to-be-welded heating wire component in the method comprises electric leads and a heating wire which is wound on an oil suction rope. The method includes the following steps: step 1, removing outer skin of a connecting end of each electric lead to enable a core wire inside the corresponding electric lead to be exposed outside; step 2, electrically connecting one working electrode in a laser spot welder with the electric leads; step 3, enabling the core wire on the connecting end of each electric lead and a connecting end of the heating wire to be connected and to oppositely collide on another working electrode of the laser spot welder simultaneously, and enabling the laser spot welder to output current to integrally weld the core wire on the connecting end of each electric lead and the connecting end of the heating wire. After adopting the above scheme for welding, a welding point is enabled to be small and firm after welding, and faulty welding and false welding are avoided; resistance change is small, the welding point is free of heat energy conversion due to electrification and cannot be corroded by tobacco tar, and pure mouthfeel of smoke taste during smoking can be guaranteed.

The invention relates to the technical field of polyester differential fibers, aims to solve the problem that warm-keeping functional fabric cannot satisfy requirements, and provides a preparation method of heat-generating polyester fibers. The preparation method includes: adding purified terephthalic acid, ethylene glycol, auxiliaries and titanium nitride nano powder into a polymerization kettle, performing reaction, and spinning. The prepared polyester fibers are good in toughness, rigidity and heat performance, good in spinnability and good in heat-generating effect.

The present disclosure relates to a self-heated battery based on a carbon nanotube film and a method for fabricating the same. The self-heated battery comprises a battery case, an electrode sheet group disposed in the battery case, and a flexible carbon nanotube film. The flexible carbon nanotube film and the electrode sheet group are separated by a first diaphragm. The electrode sheet group includes a positive electrode sheet, a negative electrode sheet, a second diaphragm, and an electrolyte. The second diaphragm separates the positive electrode sheet from the negative electrode sheet. The electrolyte fills a space among the positive electrode sheet, the negative electrode sheet and the second diaphragm. The positive electrode sheet is provided with a positive electrode tab. The negativeelectrode sheet is provided with a negative electrode tab. The flexible carbon nanotube film is provided with a first tab connected to the positive electrode tab and a second tab connected to the negative electrode tab. The self-heated battery provided by the present disclosure has a fast heating rate and high heating efficiency, and is safe and reliable.

The invention discloses a manufacturing method of a negative oxygen ion carbon crystal and carbon fiber infrared heating wallpaper mural, and relates to the technical field of heating of heating paper (film). A key technology of setting a heating carbon crystal layer is adopted, the negative oxygen ion carbon crystal and carbon fiber infrared heating wallpaper mural used as a mural layer, a wallpaper layer, a heating carbon crystal layer and an insulating layer are adhered in sequence; the two sides of the heating carbon crystal layer are electrically connected with wires; the method comprises the following steps: back-coating and drying heating carbon crystal colloid prepared from 1-30 parts by weight of nanometer carbon crystal powder, 1-15 parts by weight of carbon fiber chopped fiber, 1-5 parts by weight of graphene, 1-20 parts by weight of tourmaline, 20-40 parts by weight of flame-retardant epoxy resin, 1-2 parts by weight of dicyandiamide, 50-100 parts by weight of acetone and 5-20 parts by weight of nitrile butadiene rubber; wiring; covering with the insulating film. The wallpaper mural is used for indoor heating and decoration. The method has the advantages of simple process, good effect, low cost and contribution to generalization.

The invention relates to a carbon nanofiber heating cloth which includes an insulating fiber woven belt formed through warp and weft weaving of insulating fibers. Carbon fibers which are arrayed in parallel are interspersed in the warp or weft direction of the insulating fiber woven belt. The two ends of the carbon fibers are connected with electrodes. The carbon fibers are formed by carbon nanofibers. The carbon nanofibers have the characteristics of low density, high specific modulus, high strength, high conductivity, excellent thermal stability and large specific surface area and the like. Therefore, the carbon nanofiber heating cloth made of the carbon nanofibers has an excellent heating effect and the surface of the whole heating cloth is uniform in heating temperature and the tensile strength, bending resistance and compression resistance performance are excellent so that the heating cloth is reliable in quality and longer in service life and at the same time, the heating efficiency is also improved and the heating cloth also plays an excellent energy-saving and environment-protecting role.

The invention provides a testing device for assisting rod-shaped sample uniaxial drawing through pulse current. The device comprises a pulse power source and a drawing test machine, the drawing test machine comprises drawing clamps and a driving device, the drawing clamps are fixedly connected with the two ends of a rod-shaped sample, the driving device is used for driving the drawing clamps to get close to or away from each other, and the two ends of the rod-shaped sample are provided with conductive rings connected with the positive pole and the negative pole of the pulse power source respectively. Each drawing clamp is provided with a wedged-shaped cavity, wherein the cavity is internally provided with two opposite insulating clamping blocks, the opposite sides of the two insulating clamping blocks are provided with clamping grooves, each clamping groove is internally provided with a positioning clamping block, the opposite sides of the two positioning clamping blocks are provided with positioning grooves used for containing the two ends of the rod-shaped sample and the conductive rings, and knurled anti-skid structures are arranged on the contact surfaces of the positioning grooves and the rod-shaped sample. The device is suitable for research of deformation behaviors of rod-shaped metal materials under the action of the pulse current, processing of the sample is facilitated, material waste is avoided, and joule heat generated at the joints is reduced.

The invention relates to a synchronous rectifier circuit of a wireless charging receiving terminal, which is used to realize the rectification function of a wireless charging receiver. The synchronousrectifier circuit is connected between a resonant circuit of the wireless charging receiver and a load, and includes an MOS transistor rectifier circuit and a synchronous rectifier control circuit. The synchronous rectifier control circuit controls the working sequence of the MOS transistors in the MOS transistor rectifier circuit by controlling the driving voltages input to the MOS transistors in the MOS transistor rectifier circuit, so that the synchronous rectifier circuit has a rectification effect consistent with a preset effect. By adopting the synchronous rectifier circuit of the wireless charging receiving terminal of the invention, the rectification efficiency is higher than that of the diode rectifier circuit in the prior art, and the heating problem caused by diode rectification loss can be significantly improved. The synchronous rectifier circuit is simple and convenient, needs no additional software control, and can be used as an independent module to replace the diode rectifier module.

The invention relates to a full-automatic bidirectional clutch. The full-automatic bidirectional clutch comprises a shell which is formed by fixedly connecting a front end cover and a back end cover, wherein a driving shaft is fixed to the front end cover rotatably; a driven shaft is fixed to the back end cover rotatably; the shaft end, positioned in the shell, of the driving shaft is provided with a centrifugal sliding pin device; the shaft end, positioned in the shell, of the driven shaft is provided with a driven plate; the plate surface of the driven plate is provided with a first groove; the inner wall surface of the first groove is provided with a boss; and the centrifugal sliding pin device is in clearance fit in the first groove. The full-automatic bidirectional clutch adopts a centrifugal sliding pin spring return structure; the driving shaft and the driven shaft drive through the joint of a driving pin and the boss; and the clutch has the characteristics of simple structure, light weight, short joint time and small inertia, capacity of transmitting bidirectional torque, small appearance size, large transmission torque, no relative sliding between the drive shaft and the driven shaft after jointing, and unchanged drive ratio.

The invention belongs to the field of loudspeaker technology and manufacture and relates to a multipurpose bidirectional horn loudspeaker. The loudspeaker comprises a front horn and a rear horn that are driven by a driving unit; the front horn is connected with a front larynx cover and a front larynx plug of the driving unit; the rear part of the front larynx plug is provided with a front chamberthat is connected with a vibration film; the vibration film is connected with a voice coil paper tape; the rear horn is connected with a rear larynx cover and an internal rear larynx plug in the driving unit; the rear part of the rear larynx plug is provided with a rear chamber; the position between the front and the rear larynx plugs, namely, the center of the driving unit, is provided with a magnetic circuit system and a vibration system; and a front radiating horn and a rear radiating horn commonly use one magnetic circuit system and one vibration system. The loudspeaker has the beneficialeffects that the electro-acoustic conversion efficiency of the loudspeaker is improved greatly, the energy-saving and material-saving effect is outstanding, the heating condition of the driving unit is greatly improved, therefore, the damage possibility of the key part voice coil affecting the reliability of the loudspeaker is reduced, the service life of the loudspeaker is prolonged, the using cost is reduced, the usage is convenient and a large amount of electric energy and raw material resources are saved.

The invention relates to a secondary batter pack which comprises a plurality of battery pack units connected in parallel mutually, wherein each battery pack unit is formed by at least two secondary batteries connected in series. The invention ensures that the consistency of current density distribution of the batteries is improved, thereby solving the problems of battery heating, poor battery circulating performance and the like and enhancing the battery pack performance.

The invention relates to a method for targeting an imaging agent to cells of an animal to detect localized infections. More particularly, localized infections are detected by targeting imaging agents to inflammatory cells having receptors for a vitamin by using vitamin-imaging agent conjugates.

The invention relates to an aspheric surface abrasive belt grinding and polishing tool based on a hydraulic servos. The aspheric surface abrasive belt grinding tool comprises a hydraulic servo system and an abrasive belt tool system connected through a link mechanism, and the abrasive belt tool system comprises an abrasive belt driven by a tool motor, an upper foot support rod and a lower foot support rod, wherein the upper foot support rod and the lower foot support rod are connected through a third bearing. The hydraulic servo system comprises a hydraulic cylinder, the hydraulic cylinder is sequentially connected with a single-way throttle valve, a three-position four-way solenoid valve, an overflow valve, a hydraulic pump, a filter and an oil tank, and the hydraulic servo system adjusts a grinding and polishing pressure of the abrasive belt by controlling strokes of the link mechanism and stabilizes the grinding and polishing pressure through the overflow valve. The aspheric surface abrasive belt grinding and polishing tool solves the problem that the grinding and polishing pressure of the abrasive belt in a grinding and polishing process of aspheric surface optical elements is unstable, and simultaneously the aspheric surface abrasive belt grinding and polishing tool has the advantages of being capable of self adapting to workpiece curved surfaces, good in effects of discharging grinding and polishing sweeps, big in grinding ratio, high in grinding and polishing efficiency, simple in structure and low in manufacture cost.

The invention provides a control method of terminal output current, and a terminal. The method comprises the following steps: when the terminal accomplishes the data transmission or charging of a target terminal; obtaining a temperature of a preset component in the terminal; when the temperature is within a preset temperature interval, controlling the terminal to output target current to the target terminal according to a pre-recorded corresponding relation between the temperature of the preset component and the output current. According to the method provided by the invention, when the terminal is monitored to output the current to the target terminal, the temperature of the preset component in the terminal is obtained, and the terminal is controlled to output the target current to the target terminal according to the pre-recorded corresponding relation between the temperature of the preset component and the output current so as to adjust the output power in real time, improve the heating of the terminal, ensure the security of a mobile phone and improve the user experience.

The invention relates to an electric heating hand warmer with a ceramic electric heating substrate. The electric heating hand warmer comprises a bag body and an electric heating body disposed in the bag body. The electric heating hand warmer is characterized in that the electric heating body is the ceramic electric heating substrate serially connected with an overheat protector. By using the ceramic electric heating substrate as the electric heating body with the serially connected overheat protector, the electric heating hand warmer is simple and reasonable in structure and fast in heating, heating conditions of the ceramic electric heating substrate can be monitored by the overheat protector in real time, when dry heating due to the ceramic electric heating substrate exposes out of liquids occurs, power-off protection is performed by the overheat protector, dry heating is avoided, and accordingly the electric heating hand warmer is safe, reliable and long in service life. In addition, the novel heating body is high in heating efficiency, electricity-saving and environment-friendly, and sustainable development of industrialization is benefited.