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135results about How to "Low calorific value" patented technology

Rotary cross-flow ceramic membrane filtering device

The rotary cross-flow ceramic membrane filtering device comprises a shell, a main shaft unit arranged in the shell and a power unit for driving the main shaft unit to rotate, the power unit provides rotating power for the main shaft unit and drives the filtering disc to rotate, the main shaft unit is installed in the shell and executes a specific filtering task, and the shell provides necessary support and protection for the main shaft unit and the power unit and controls inflow and outflow of materials. According to the rotary cross-flow ceramic membrane filtering device provided by the invention, the ceramic membrane filtering disc is arranged, so that the filtering efficiency and the system stability are improved, the operation cost is reduced, and the rotary cross-flow ceramic membrane filtering device is suitable for being widely applied to various industrial fields needing efficient filtering solutions.
Owner:JIANGSU LINGDONG FILM TECH CO LTD

A motor and planetary reducer integrated device and manufacturing method thereof

The present invention discloses an integrated device of a motor and a planetary reducer and a manufacturing method thereof, and the technical scheme thereof includes: a casing, a motor assembly and a planetary reducer assembly, the casing is provided with mounting cavities for the motor assembly and the planetary reducer assembly respectively, the motor assembly and the planetary reducer assembly are matched in transmission, and a cooling structure is provided on the outer circle of the casing. The manufacturing method mainly processes the casing, the stator core is installed on the casing, the rear end cover of the motor is fixed on the casing, the rotor of the motor is first installed on the front end cover inside the motor, and then pressed into the stator, the sun gear of the planetary reducer is installed on the motor shaft, and the gear lubricating oil is added through the planetary gear oil filling port on the casing, and the coolant needs to be introduced into the casing during operation. The entire technical scheme has a compact structure, simple transmission, and convenient maintenance, and the system efficiency, rotation accuracy, position accuracy and service life are greatly improved, and the heat generation and operating noise are greatly reduced.
Owner:杭州威灵自动化科技有限公司

Control method and control system of frequency conversion device and air conditioner

PendingCN119628477ASolve the problem of insufficient temperature controlReduced problems of inadequate temperature controlElectric motor controlAC motor controlTemperature controlControl manner
According to the control method and control system of the frequency conversion device and the air conditioner, under the condition that the temperature data exceeds the first temperature threshold value, the dead zone time and / or the minimum opening time of the frequency conversion device are / is dynamically adjusted, effective control over the temperature of the frequency conversion device is achieved, and the service life of the frequency conversion device is prolonged. The problem that the temperature of the frequency conversion device is not properly controlled in the prior art is solved. Specifically, the method can effectively reduce the switching frequency and continuous turn-on duration of switching devices such as an IGBT (Insulated Gate Bipolar Transistor) and the like in a mode of timely increasing the dead time and the minimum turn-on time, thereby reducing the calorific value of the switching devices, reducing the turn-on and turn-off loss, and avoiding performance reduction or device damage caused by overhigh temperature. Meanwhile, the control mode does not change the carrier frequency, so that the response speed and the control precision of the system are not influenced, the stable output power of the frequency conversion device is ensured under severe working conditions, and the reliability and the service life of equipment are improved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Energy supply transformer and monitoring system and method

The invention discloses an energy supply transformer and a monitoring system and method. The energy conversion unit comprises a shell, a sealing terminal, and an iron core, a primary winding, a secondary winding, an insulating supporting plate, an insulating limiting plate, an insulating partition plate, an insulating pad and a metal support which are arranged in the shell; the sealing terminal is arranged on the shell and is used for sealing and leading signals in the shell out of the shell; one end of the metal support is fixed with the iron core through the insulation pad, and the other end of the metal support is fixed on the inner wall of the shell; the primary winding and the secondary winding are coaxially arranged with the iron core and are sleeved outside the iron core; the insulating support plate is arranged between the winding and the iron core and fills a gap between the winding and the iron core; the insulating limiting plate and the iron core are coaxially arranged; the insulating supporting plate and the insulating limiting plate are made of high-dielectric-constant materials. And an insulating partition plate is arranged between the primary winding and the secondary winding. The invention aims to solve the problems that a cantilever beam structure is large in stress, poor in heat dissipation performance and large in boundary dimension, and a voltage-sharing capacitor needs to be arranged.
Owner:NR ELECTRIC CO LTD +1

Non-liquid-cooled high-current heavy-duty connector

ActiveCN122246513BIncrease charging powerSmall working current
The application provides a non-liquid-cooled heavy-current connector, relates to the technical field of electric connectors, and solves the problem of small charging power of the existing liquid-cooled charging connector. The device comprises a socket assembly and a plug assembly which are matched with each other, and at least two groups of power terminals are arranged on the socket assembly and the plug assembly. Each group of power terminals comprises a positive power terminal and a negative power terminal. The cross-sectional area of the power terminal is not less than 120 mm2, and the power terminal can bear a working current of not less than 300 A. The application adopts the setting mode of multiple groups of power terminals to reduce the heat generation of each power terminal by several times, so that the liquid-cooled charging connector can also realize high-power charging.
Owner:SHENZHEN TAIGELAI PRECISION ELECTRONICS

An electromagnetic heater power supply with overvoltage and undervoltage protection functions

The present invention discloses an electromagnetic heater power supply with over-voltage and under-voltage protection functions, including a circuit, wherein the circuit is electrically connected to an over-voltage and under-voltage protection circuit. The circuit is electrically connected to a circuit board. The over-voltage and under-voltage protection circuit is electrically connected to an over-voltage and under-voltage protection circuit board. The over-voltage and under-voltage protection circuit board has an over-voltage and under-voltage protection circuit board. Alternatively, the over-voltage and under-voltage protection circuit board has two sub-over-voltage and under-voltage protection circuit boards. One of the over-voltage and under-voltage protection circuit boards has an over-voltage and under-voltage protection circuit. Alternatively, one of the over-voltage and under-voltage protection circuit boards has two sub-over-voltage and under-voltage protection circuits. Both of the sub-over-voltage and under-voltage protection circuit boards have sub-over-voltage and under-voltage protection circuits. When the power supply voltage of the electromagnetic heater power supply with over-voltage and under-voltage protection functions is too high or too low, the power supply can be quickly cut off to prevent the insulated gate bipolar transistor (i.e., IGPT) from being burned out.
Owner:FOSHAN MINXIONG ELECTROMECHANICAL TECH CO LTD

Three-redundancy-based electromagnetic valve control system

The invention relates to the technical field of control equipment, and discloses a three-redundancy-based electromagnetic valve control system which comprises a time delay relay circuit, a DC / DC and anti-reverse circuit and a three-redundancy control circuit, the time delay relay circuit comprises a first time delay relay, a first rectifier diode, a first control module, a second control module and a third control module, and the first control module, the second control module and the third control module are connected in parallel. The first control module, the second control module and the third control module are respectively connected with three groups of different electromagnetic valve control signals, and any group of electromagnetic valve control signals effectively control the first delay relay to work; the DC / DC and anti-reverse circuit comprises a first DC / DC conversion circuit and a first ideal diode; the triple-redundancy control circuit comprises a fourth control module, a fifth control module and a sixth control module which are connected in parallel, one end of the first control module is connected with the negative electrode of the electromagnetic valve working power supply, the other end of the first control module is connected with the other end of the electromagnetic valve, and any group of electromagnetic valve control signals effectively control the electromagnetic valve to work. By adopting the method, three-redundancy control can be realized, and the reliability of an electromagnetic valve control system is improved.
Owner:HUBEI SANJIANG AEROSPACE HONGFENG CONTROL

A hot water boiler based on a porous medium burner

The application discloses a hot water boiler based on a porous medium burner, which comprises a hot water boiler shell, wherein the hot water boiler shell comprises a boiler barrel, the outer side of the boiler barrel is provided with a water jacket for storing water, and the inside of the boiler barrel is fixedly provided with a porous medium burner; the inner cavity of the porous medium burner comprises a combustion reaction zone, the two ends of the combustion reaction zone are provided with anti-backfire areas, the two ends of the porous medium burner are provided with mixed gas inlets, the mixed gas inlets are connected with mixed gas input pipelines, one end of the mixed gas input pipelines extends out of the hot water boiler shell and is connected with a gas fuel supply device; the porous medium burner is internally provided with an ignition device, mixed gas flows into the combustion reaction zone from the mixed gas input pipelines and is ignited by the ignition device, heat generated by combustion of the mixed gas heats water in the water jacket, flue gas is discharged from the combustion reaction zone through the pores of the porous medium of the porous medium burner and is discharged into a flue gas treatment mechanism connected with the hot water boiler shell, the gas utilization rate is improved, and the heat diffusion speed is slowed down.
Owner:XIJING UNIV

An optimization method for stator and rotor welding process

This invention discloses an optimized method for stator and rotor welding processes in the field of motor manufacturing, comprising the following steps: improving welding quality through pretreatment, coating with modified composite materials, and optimizing laser welding parameters. During pretreatment, the stator and rotor areas to be welded are sanded with 800-1200 grit sandpaper, followed by ultrasonic cleaning with acetone or alcohol for 10-15 minutes to achieve a surface roughness Ra ≤ 1.6 μm; a 0.1-0.3 mm thick layer of modified composite material is coated onto one surface and dried at 80-120°C for 1-2 hours; laser welding is employed, with the molten pool temperature monitored at 1800-2200°C during welding; immediately after welding, the welded parts are placed in a holding furnace at 200-300°C for slow cooling for 2-4 hours, and then cooled to room temperature at a rate of 5-10°C / min. This method effectively improves the strength, toughness, and crack resistance of the welded joint, reduces the heat-affected zone, and minimizes deformation.
Owner:WUXI LIANYUANDA PRECISION MACHINED CO LTD

A method for oxygen-enriched combustion with reduced lime double-d kiln coke oven gas blending amount

The present application relates to the technical field of metallurgical production, in particular to a method for reducing the mixing amount of coke oven gas in lime double-D kiln by oxygen-enriched combustion, specifically, oxygen injection guns and oxygen-enriched valve groups are installed in the air pipeline of the lime double-D kiln to control the oxygen flow, the lime double-D kiln is started, mixed gas containing coke oven gas and converter gas is introduced, the oxygen-enriched valve groups are then started, the oxygen enrichment degree is set from 1% and gradually increased, and the highest oxygen enrichment degree does not exceed 9%, the air-fuel ratio and the excess air coefficient are simultaneously reduced, and the mixed gas flow is reduced. By the method of oxygen-enriched combustion, the oxygen content in the calcination combustion-supporting air is increased, the combustion efficiency is improved, the combustion temperature is optimized, the air demand and the combustion product generation amount are reduced, the heat taken away by the flue gas is reduced, thereby the heat loss of exhaust gas can be reduced, the theoretical combustion temperature and the furnace gas radiation capacity can be improved, and the energy consumption can be greatly reduced.
Owner:NANJING IRON & STEEL CO LTD

An energy-saving LED display screen with reverse common cathode and a driving method thereof

The application discloses an energy-saving LED display screen with a reverse common cathode and a driving method thereof, and belongs to the technical field of LED display. The application aims at the problem that the single voltage power supply of the traditional common anode LED display screen leads to high power consumption and serious heat generation of the first display content LED, and adopts a reverse common cathode structure of dynamic anode voltage switching + cathode time-sharing gating: the ICND2018 row driving IC provides switchable double voltages for the common anode of the LED, outputs 2.6~2.8V low voltage when the first display content is displayed, and outputs 3.6~3.8V standard voltage when the second display content and the third display content are displayed; three pieces of ICND1065L16 channel constant current sink column driving IC are matched to independently control the three-color cathodes of the first display content, the second display content and the third display content, and precise power supply of color separation is realized. Under the premise of being fully compatible with the existing SMDTOP three-in-one common anode lamp beads, the first display content LED loop voltage difference is reduced from 1.8V to 0.8V, and the power consumption of the single first display content lamp is reduced by about 55%.
Owner:SHENZHEN ZHONGHE PHOTOELECTRIC TECH CO LTD

A multiple ignition protection method and ignition protection circuit based on HCS08SG

The application discloses a multiple ignition protection method and an ignition protection circuit based on HCS08SG. The method is used in an ignition module of an automobile engine and comprises the following steps: S1, collecting an ECU driving signal of a signal input end and outputting the signal to an HCS08SG single-chip microcomputer after processing; S2, determining whether multiple ignition needs to be started by using the HCS08SG single-chip microcomputer; if the multiple ignition needs to be started, the HCS08SG single-chip microcomputer controls a power switch of the ignition module to start the multiple ignition; S3, detecting the frequency of the opening and closing of the power switch of the ignition module by using the HCS08SG single-chip microcomputer, and accumulating and calculating the ignition times in a multiple ignition cycle time; and S4, comparing the accumulated and calculated ignition times with a set threshold value by using the HCS08SG single-chip microcomputer, and controlling the power switch of the ignition module to close the multiple ignition after the set threshold value is reached. The application can accurately control the multiple ignition times of the ignition module, reduce the heat quantity of the multiple ignition module, prolong the service life of the multiple ignition module, and reduce the failure rate of the ignition coil.
Owner:SHENZHEN JIANKE ELECTRONICS

Method and apparatus for a martensite-free brazing process

ActivePL4070902T3conveniently brazelow calorific value
A method for brazing an electrically conducting connecting piece, for example a cable shoe, of an electrically conducting material to a workpiece of electrically conducting material, by means of a temperature controlled brazing process in which the heat necessary for brazing is generated by striking an electric arc between a carbon electrode, and the electrically conducting connecting piece, where the voltage and current is electronically controlled by control electronics to achieve a temperature development to result in a martensite free brazing, and wherein the DC voltage applied is using the carbon electrode as the negative pole, and using the electrically conducting connecting piece as the positive pole, and wherein the carbon electrode is having a tapering, bevelled, or pointy end at the end facing the electric arc.
Owner:SAFETRACK INFRASYST SISAB

Light emitting diode and light emitting device

The utility model provides a light emitting diode and a light emitting device. The light-emitting diode comprises a substrate, a reflecting layer and a semiconductor laminated layer which are sequentially laminated from bottom to top, a first surface of the substrate comprises a first area and a second area surrounding the first area, and the surface, opposite to the substrate, of the reflecting layer comprises an electrode area and a non-electrode area corresponding to the second area; corresponding to the non-electrode area, a plurality of bulges are arranged on the surface, deviating from the substrate, of the reflecting layer; or, corresponding to the non-electrode area, a plurality of grooves are formed in the substrate, and the grooves penetrate through the reflecting layer and part of the substrate. According to the light-emitting diode, the uneven surface structure such as the protrusions or the grooves is formed, heat transfer is carried out outwards through the uneven surface structure, the heat transfer contact area between the light-emitting diode and an external heat dissipation medium is increased, the heat productivity of the light-emitting diode is effectively reduced, and the working stability and reliability of the light-emitting diode are improved.
Owner:LUMINUS (XIAMEN) CO LTD

A stator and rotor assembly and a powder-liquid mixing device

ActiveCN224422533UReduce invalid overlap areaImprove dispersion efficiency
This utility model relates to a stator-rotor assembly and a powder-liquid mixing device. A stator-rotor assembly includes at least one stator and at least one rotor, the rotor rotating relative to the stator to shear the material flowing through the assembly. The structure of a single stator includes a first disc with several flow holes along the circumference on its end face for material flow. The structure of a single rotor includes a second disc with several notches along the circumference on its end face for material flow; each notch is hollowed out, thus forming independent blades between adjacent notches. By configuring the stator and rotor, the shearing consistency of the stator-rotor assembly on the material can be improved, thereby increasing the dispersion efficiency; simultaneously, the small overlap area between the stator and rotor reduces the heat generation of the stator-rotor assembly.
Owner:WUXI RICH INTELLIGENT EQUIP CO LTD

Pre-charge circuit and control method thereof, battery management system, electric vehicle

The application discloses a pre-charging circuit and a control method thereof, a battery management system and an electric vehicle. The circuit comprises a capacitor, a power battery, a pre-charging inductor, a pre-charging switch and a switch control module. The positive pole of the power battery is connected with the first end of the capacitor. The first end of the pre-charging inductor is connected with the first end of the capacitor, and the second end of the pre-charging inductor is connected with the second end of the capacitor. The pre-charging switch is connected in series between the negative pole of the power battery and the first end of the pre-charging inductor. The input end of the switch control module is connected with the negative pole of the power battery, and the output end of the switch control module is connected with the pre-charging switch. The switch control module is used for acquiring a circuit signal in the pre-charging circuit, comparing the circuit signal with a reference signal to obtain a voltage value comparison result, and controlling the on-off of the pre-charging switch according to the voltage value comparison result and a clock signal. According to the embodiment provided in the application, the pre-charging efficiency, the safety and the energy saving of the battery system can be improved.
Owner:SUNGIANT AUTOMOTIVE ELECTRONICS CO LTD

Power supply unit

The present invention provides a power supply device, which can appropriately limit the output voltage to an upper limit even if the input voltage of the converter changes, so as to protect the converter from overheating. The power supply device comprises: a converter (20), which converts direct current between an input terminal and an output terminal, and has at least one switching element; and a control circuit (50), which performs switching control on the switching element so that the output voltage (Vout) approaches a target output voltage (Vouto). When the temperature (TC) of the converter exceeds a first judgment value, the control circuit (50) uses a first upper limit value to limit the target output voltage (Vouto), and reduces the first upper limit value as the input voltage (Vin) decreases.
Owner:MITSUBISHI ELECTRIC MOBILITY CORP

Low cost environment-friendly papermaking pulping process

PendingCN122082275AReduce causticizing rateReduce pulping costsPulp liquor regenerationMultistage pulping processFiberBlack liquor
This invention provides a low-cost and environmentally friendly papermaking pulping process, comprising the following steps: S1. Pretreatment of papermaking fiber plant raw materials. S2. Oxy-alkali cooking: The pretreated papermaking fiber plant raw materials are mixed with an aqueous sodium carbonate solution, and cooked for 0.5–5 hours using oxygen as an oxidant. Then, sodium hydroxide is added, and cooking continues for 0.3–2 hours. Finally, the pulp and black liquor are separated by pressing. S3. Black liquor treatment: The black liquor is mixed with fiber waste, pressed, and burned as biomass fuel. S4. Recovery and causticization. This papermaking pulping process uses sodium carbonate and a small amount of sodium hydroxide for staged oxy-alkali pulping, and the generated black liquor is mixed with fiber waste and burned to recover sodium carbonate and heat, reducing the causticization rate and pulping costs.
Owner:SHENZHEN DEWEI INTELLIGENT MFG TECH CO LTD

Cable wiring mechanism of tunnel power system

The invention discloses a cable wiring mechanism for a tunnel electric power system, and the mechanism comprises a binding post which is provided with a wiring female head; an inner ring sleeve is arranged in the male head shell; the movable ring sleeve is axially arranged on the outer side of the male head shell in a sliding and sleeving mode, and the threaded driving rod is rotationally arranged on the male head shell and is in threaded fit with the movable ring sleeve. According to the cable wiring mechanism of the tunnel power system, the movable ring sleeve is coaxially fixed to the wiring female head in advance, the threaded driving rod is rotated to enable the male head shell to slide relative to the wiring female head to axially approach, and then the contact head axially moves to approach and is inserted and matched in the contact groove to complete electrical connection; therefore, the problem that pits are generated due to radial impact between the contact head and the contact groove in the manual butt joint process is solved, and the problems that contact resistance is increased and heat is increased due to the fact that the pits are generated between the contact head and the contact groove are solved.
Owner:山西交通控股集团有限公司

A motorized curtain driven by a deceleration motor

ActiveCN224745277Ulow calorific valueHigh structural transmission efficiency
The utility model discloses a kind of electric curtain driven by reduction motor, belong to projection curtain technical field.The electric curtain includes curtain storage bin, pivot drive module and curtain pivot, wherein pivot drive module adopts motor reduction module (including four-stage gear transmission structure) formed by direct current motor cooperation pure gear, Hall detection magnet wheel and multiple Hall induction elements are set in motor shaft end to realize accurate rotation detection.Compared with prior art, the utility model replaces worm gear reducer by pure gear transmission, and transmission efficiency is improved to more than 95%, solves the problem that traditional stroke limiter is not accurately positioned and worm gear is large, low efficiency;While, Hall element detection scheme is stronger than current detection anti-interference, can accurately control curtain in lifting limit position automatic stop. Curtain pivot is realized curtain winding and unwinding by the friction transmission of winding drum drive wheel and curtain winding drum.The design has the advantages of simple structure, low cost, good durability etc.
Owner:JIANGSU KELUDA ELECTRONIC TECH CO LTD

Handheld ultrasonic drill

PendingCN119634781AOne-hand grip achievesSolve problems that can easily lead to fatigue in one-handed operationPortable percussive toolsPortable drilling machinesUltrasonic sensorGravity center
The invention discloses a handheld ultrasonic drill, and relates to the technical field of drilling machining equipment, the handheld ultrasonic drill comprises a shell, a containing cavity with an opening facing the front side is formed in the shell, and a driving unit and an ultrasonic transducer assembly which are sequentially arranged from the rear side to the front side are arranged in the containing cavity; moreover, the shell is provided with a handle, the gravity center of the handheld ultrasonic drill is located in a projection cylinder of the handle, and the projection cylinder is a cylinder formed by extending the horizontal projection of the handle in the vertical direction. According to the handheld ultrasonic drill provided by the invention, the gravity center of the handheld ultrasonic drill is arranged in the projection column body of the handle, so that the torque between the gravity of the handheld ultrasonic drill and the holding position of a user is greatly reduced, the situation that the wrist is twisted when the user holds the ultrasonic drill by a single hand is avoided, and the handheld ultrasonic drill can be held by the single hand; the problem that an existing handheld ultrasonic drill is prone to causing fatigue of single-hand operation is solved.
Owner:KEYIZHAN INTELLIGENT EQUIP CO LTD +2

High-pumping-conversion-efficiency active optical fiber based on pumping ring structure and amplifier structure

The invention discloses a pumping ring structure-based active optical fiber with high pumping conversion efficiency and an amplifier structure, and relates to the field of active optical fibers and optical fiber amplifiers, the pumping ring structure-based active optical fiber comprises a layered structure which is sequentially arranged from inside to outside, and the layered structure comprises a fiber core, a pumping ring structure, a quartz cladding and a coating layer, the optical fiber is located at the geometric center of the active fiber; the pumping ring structure is arranged around the fiber core and is used for guiding and converging pumping light to gather towards a fiber core area, the pumping ring structure is composed of one or more layers of concentric annular modulation areas, and the refractive indexes of all the layers of modulation areas are gradually increased layer by layer from outside to inside in the radial direction; according to the active optical fiber and amplifier structure, one or more layers of concentric pumping rings with refractive indexes gradually increased layer by layer from outside to inside are arranged in the cladding, and the concentration degree and energy density of pumping light towards a fiber core area can be remarkably improved to a certain extent by utilizing the guiding effect of refractive index gradients on a pumping light propagation path; therefore, higher pumping absorption efficiency and gain performance are realized.
Owner:JINAN UNIVERSITY

A mine-used four-way explosion-proof and intrinsic safety type direct-current power supply with communication function

ActiveCN117220527Bimprove securityImprove power conversion efficiency
The application discloses a mine-used four-way explosion-proof and intrinsic safety type direct-current power supply with a communication function, which comprises five non-intrinsically safe AC_DC modules and DC intrinsic safety circuits connected with the non-intrinsically safe AC_DC modules, and is recorded as non-intrinsically safe AC_DC module 0-non-intrinsically safe AC_DC module 4. The non-intrinsically safe AC_DC module 0 is responsible for power supply of a power management module. Two power supplies of the non-intrinsically safe AC_DC module 1 and the non-intrinsically safe AC_DC module 2 are converged through the power management module to form a double-path power supply A. Two power supplies of the non-intrinsically safe AC_DC module 3 and the non-intrinsically safe AC_DC module 4 are converged through the power management module to form a double-path power supply B. The double-path power supply A is fused with a CAN bus and a vehicle-mounted Ethernet unit into an 8-core composite cable. The double-path power supply B is fused with another CAN bus and the vehicle-mounted Ethernet unit into an 8-core composite cable. The power supply internally adopts a four-way power supply parallel mode, can realize power supply with a larger power, has a higher power conversion efficiency, has a lower heat generation, and improves the safety of the power supply system.
Owner:CHENGDU HANGTIAN PHOTOELECTRIC TECH

A coil for a solenoid valve

The utility model discloses a solenoid for electromagnetic valve, including support body and the skeleton of setting in support body inside, the support body includes U type frame and sets up the apron of U type frame open end, still include the electricity incoming subassembly of clamping in one side of U type frame, the electricity incoming subassembly includes circuit board and mounting bracket. The utility model adopts modularization design, and the circuit board and mounting bracket are integrated into electricity incoming subassembly, make from production to operation and maintenance whole process realized optimization: first, the assembly link is simplified operating procedure because of part integration, reduces the cumbersome process of scattered assembly, thereby greatly improves the assembly efficiency, second, when the later maintenance replacement, modularization design makes no need to the coil overall to be disassembled, only needs to carry out single operation to the electricity incoming subassembly, not only simplifies the maintenance process, reduces the maintenance threshold, can also complete the replacement fast, effectively reduces the downtime of equipment because of the failure.
Owner:浙江亿太诺科技股份有限公司

Charging case, charging device, and electronic device assembly

The application discloses a charging box, a charging device and an electronic device assembly. The charging box comprises a box body, a magnetic element, a driving element and a first coil. The driving element is arranged in the box body and is used for driving the magnetic element to move. The magnetic element is movably arranged at a first position of the box body and is used for driving an electronic device to move relative to the charging box. The first coil is arranged in the box body and is used for charging the charging box or the electronic device. The first coil has a first distance from the magnetic element. When the first coil charges the charging box or the electronic device, the driving element drives the magnetic element to move to a second position of the box body. When the magnetic element is at the second position, the magnetic element has a second distance from the first coil, and the second distance is greater than the first distance.
Owner:VIVO MOBILE COMM CO LTD

Harmonic current control method, PFC (Power Factor Correction) controller, equipment electric control device and household appliance

The invention discloses a harmonic current control method, a PFC (Power Factor Correction) controller, an equipment electric control device and a household appliance, the method is applied to the equipment electric control device, the equipment electric control device comprises a PFC circuit, and the method comprises the following steps: determining working parameters of the PFC circuit under the condition that the PFC circuit is turned on; a compensation coefficient is determined according to the working parameters, a high-frequency harmonic signal is injected into the input current through the PFC circuit according to the compensation coefficient, and the high-frequency harmonic signal is used for restraining the waveform peak value of the input current. According to the method, heating of the bus capacitor in the equipment electric control device can be further reduced under the condition that the equipment electric control device meets the product harmonic authentication standard requirement, so that the reliability of the capacitor can be further improved, and the service life of the capacitor can be further prolonged.
Owner:FOSHAN SHUNDE MIDEA ELECTRONICS TECH CO LTD +1

An automatic control anchor winch hydraulic system

ActiveCN115416809Blow calorific valueReduce heat transfer powerAnchor handling/lashingAnchoring arrangements
An automatic control anchor winch hydraulic system, the automatic control anchor winch hydraulic system includes an oil tank, a constant pressure variable pump, an oil return filter, a multi-way reversing valve, a balancing valve, an electromagnetic reversing valve and a brake cylinder; the oil outlet of the oil tank is connected to the oil inlet end of the constant pressure variable pump, the oil outlet end of the constant pressure variable pump is connected to the oil inlet end of a one-way valve, the oil outlet end of the one-way valve is connected to the oil inlet end of a two-way pressure compensator, and the oil outlet end of the two-way pressure compensator is connected to the oil inlet end of the multi-way reversing valve. This design forms a load-sensitive control system through a load constant pressure variable pump and a multi-way reversing valve. The output pressure of the constant pressure variable pump is determined by the load, and the output flow of the constant pressure variable pump can automatically change according to the load flow demand, so that no unnecessary hydraulic energy loss will be generated, thereby achieving a good energy-saving effect; at the same time, it can reduce the heat generated by the hydraulic system and reduce the heat exchange power of the cooler in the hydraulic system.
Owner:WUHAN MARINE MACHINERY PLANT

Resource configuration parameter updating method and device based on Android terminal, medium and equipment

The invention relates to the field of system resource configuration updating, in particular to a resource configuration parameter updating method and device based on an Android terminal, a medium and equipment. Comprising the following steps: under the condition that the matching degree between a terminal and a current resource configuration parameter is abnormal, acquiring user behavior characteristic update data corresponding to the terminal from all existing monitoring data in a local permanent storage; and according to the user behavior feature updating data, generating an updated resource configuration parameter corresponding to the terminal, and updating a current resource configuration parameter of the terminal. According to the embodiment of the invention, the terminal can determine whether the initial system resource configuration parameter needs to be updated according to the matching degree between the system resource configuration parameter required by the actual use habit of the user and the initial system resource configuration parameter. Therefore, the matching degree between the configuration parameter of each terminal and the use habit of the user can be improved, and the use experience of the user is further improved.
Owner:SICHUAN TIANFU ZHONGKE CHUANGDA INTELLIGENT INFORMATION TECH CO LTD

Distributed storage battery charging and discharging control module

The utility model relates to the technical field of storage battery charging and discharging control, and discloses a distributed storage battery charging and discharging control module which comprises a shell, a mounting cavity is formed in the inner wall of the shell, and the inner wall of the mounting cavity is fixedly connected with a circuit board, an anti-reverse parallel discharging module and a plurality of anti-reverse charging and discharging controllers. The outer wall of one side of the shell is fixedly connected with a storage battery socket, the outer wall of the other side of the shell is fixedly connected with a wiring terminal, and the storage battery socket, the wiring terminal, the anti-parallel discharging module and the anti-reverse charging and discharging controllers are all electrically connected with the circuit board. According to the distributed storage battery charging and discharging control module, different types of storage batteries and different batches of storage batteries can be mixed for use, the storage batteries do not need to be replaced in batches, and the use cost is effectively saved; for the scene of frequent tripping and outage in thunderstorm days, the working time of instrument equipment can be effectively prolonged, the service life of the storage battery is prolonged, and the operation and maintenance workload is greatly reduced through the distributed modular design.
Owner:FUZHOU TONGCHANG NETWORK TECHNOLOGY CO LTD

Lithium carbon fluoride battery electrolyte, application and lithium carbon fluoride battery

PendingCN122000454ABreaking is effectiveFission catalysis is effectiveLi-accumulatorsAluminium chlorideElectrolytic agent
The invention discloses a fluorocarbon bond breakage catalyst, a lithium fluoride carbon battery electrolyte and a lithium fluoride carbon battery, and belongs to the field of lithium batteries. The fluorocarbon bond cleavage catalyst only comprises a compound of dimethyl aluminum chloride (C2H6AlCl). The fluorocarbon bond breakage catalyst can catalyze C-F bond breakage, so that a large number of LiF crystal nucleuses are pre-generated in electrolyte near the CFx surface before the battery is discharged, the crystallization and growth processes of LiF crystals in the discharge process of the Li / CFx battery are changed, the LiF crystallization process with huge heat productivity is converted into the LiF crystal growth process with small heat productivity, and the LiF / CFx battery has a good heat dissipation effect. And finally, the purpose of reducing heat produced in the battery discharging process is achieved.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES