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42results about How to "Low control power" patented technology
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GE Energy Power Conversion Technology Ltd
ActiveUS20160261180A1Reduce harmLower average currentTransistorAc-dc conversionElectricityComputer module
A switch module includes a collector connection, an emitter connection, and a gate connection. The switch module includes a plurality of parallel connected switching elements, e.g., insulated-gate bipolar transistors, each having a collector electrode electrically connected to the collector connection, an emitter electrode electrically connected to the emitter connection, and a gate electrode electrically connected to the gate connection. A fault protection device is operatively electrically connected between the gate connection and the switching elements and comprises passive electrical components which are selected such that in the event of a fault in at least one of the plurality of switching elements, a gate-emitter voltage is provided to the gate electrodes of non-faulty switching elements in a passive manner.
Owner:GE ENERGY POWER CONVERSION TECH
Dynamic power control in integrated circuit
InactiveCN1427319AAvoid power consumptionReduce power consumptionEnergy efficient ICTPower supply for data processingElectronic systemsIntegrated circuit layout
The invention relates to a method and device for implementing dynamic power control in an electronic system implemented on an integrated circuit, which electronic system comprises at least one or several hardware units, a hardware based power control logic substantially implemented with logic circuits, as well as a programmable power control mode register containing information about powered-down modes defined for said one or more hardware units. According to the invention, to transfer a single hardware unit from the powered-down mode to the operational mode, said hardware unit transmits to the power control logic a first level sensitive status signal for transferring said hardware unit from the powered-down mode to the wake up mode, and further a second level sensitive status signal for transferring said hardware unit from the wake up mode to the actual operating mode. Said wake up mode is characterized in that the transfer of said hardware unit from the wake up mode to the actual operational mode is now effected with a known, preferably short delay, and that the power consumption in the wake up mode is lower than in the actual operational mode. The invention makes it possible to achieve aggressive power savings.
Owner:NOKIA TECHNOLOGLES OY
Electromagnetic speed-regulating electrical haulage coal cutter
InactiveCN1567696AReduce volumeLow control powerMultiple dynamo-electric motors speed regulationDynamo-electric brake controlDrive wheelMagnetic poles
The invention is an electromagnetic speed regulating electric-dragged miner, including a machine body, two dragging boxes situated at two ends of the machine body, respectively, driving wheel and a cutting mechanism, where each dragging box contains an electromagnetic speed regulating motor which includes a three-phase asynchronous cage motor, an electromagnetic slip clutch and a speed-regulating control system. The clutch includes an armature, a magnetic pole, exciting winding, magnetic conductor and a speed measurer, the armature is installed on the output shaft of the three-phase asynchronous cage motor and rotates with the output shaft at the same speed, the magnetic pole is installed the output shaft of the electromagnetic speed regulating motor, the exciting winding and magnetic conductor are fixed inside the magnetic pole, and the speed measurer is installed on the output shaft of the electromagnetic speed regulating motor to measure the output speed and feeds it back to the speed regulating control system; the speed regulating control system is a speed and current double closed-loop speed regulating control system, and regulates the corresponding the exciting current magnitude according to the feedback information from the sensor and speed measurer, thus achieving the purpose of changing output speed.
Owner:刘建功
Switch valve controlled by pilot valve sleeves
The invention belongs to the field of fluid transmission and control, and specifically relates to a switch valve controlled by pilot valve sleeves. The switch valve controlled by the pilot valve sleeve comprises a valve body and a main valve element, wherein a drive device is arranged at the two ends of the valve body separately; an adjustment cavity is formed between each drive device and the main valve element; an oil inlet channel and an oil outlet channel which communicate with the adjustment cavities are formed in the main valve element; the pilot valve sleeves connected with the drive devices sleeve outside the main valve element; and the drive devices drive so that the pilot valve sleeves circumferentially rotate relative to the main valve element to close the oil inlet channel andopen the oil outlet channel or open the oil inlet channel and close the oil outlet channel, so that the pressure difference of the two ends of the main valve element is changed. Compared with an original single-stage valve used for a low flow rate, the specifications and dimensions of the electromagnetic drive devices are reduced, the overall weight and installation dimensions are reduced, the needed control power is reduced, the capacity of resisting to external disturbance of the whole valve is improved, and more stable performance is achieved. Compared with an original single-stage valve used for medium and high flow rates, the weight and installation dimensions of the whole fluid control valve can be greatly reduced, the parts are reduced, and the stability of the valve is further improved.
Owner:ZHONGHONG VALVE CO LTD
Damping type pilot control switch valve
The invention belongs to the field of fluid drive and control, in particular relates to a damping type pilot control switch valve. The damping type pilot control switch valve comprises a valve body and a main valve element. The two ends of the valve body are respectively provided with a driving device. An adjusting cavity is formed between the driving device and the main valve element. Two open grooves are arranged in the two ends of the main valve element. Pilot valve elements are arranged in the two open grooves. The adjusting cavity is communicated with a low-pressure oil outlet or a high-pressure oil inlet through fixed damping. The pilot valve elements is driven to enable the adjusting cavity to be communicated with or not communicated with the high-pressure oil inlet or the low-pressure oil outlet, so that a hydraulic acting force is formed, thereby moving the main valve element. The damping type pilot control switch valve has the advantages 1 that the main valve element is driven by hydraulic acting force instead of direct electromagnetic driving, so as to greatly increase the driving force; 2 that the pilot valve element is designed inside the main valve element, so as to greatly reduce the volume; 3 that the pilot valve element is designed for controlling the pressure of the control cavity at the two ends of the main valve, and the flow required by the pilot control isvery small, so that the driving force of driving the pilot valve element can be very small, the size of the electromagnetic driving device is further reduced, and the purposes of energy conservationand emission reduction are achieved.
Owner:福建禹工阀业有限公司
Linear motor permanent magnetic brake
ActiveCN105978291AReduce volumeReduce weightPermanent-magnet clutches/brakesMechanical energy handlingAutomatic controlLinear motor
The invention discloses a linear motor permanent magnetic brake. The linear motor permanent magnetic brake comprises a static iron core assembly and a moving plate assembly, wherein the static iron core assembly comprises multiple coils embedded in the static iron core; the upper portion of each coil is provided with a magnet yoke and magnet steel; the moving plate assembly comprises a fixed plate and a movable plate which are spaced by a spring sheet; and the fixed plate is placed above the magnet yokes and the magnetic steel. The linear motor permanent magnetic brake has the following advantages: 1, linear internal contracting brake is realized, the volume is small, and the weight is light; 2, the processing is simple, and the installation and maintenance are simple; 3, the connection is reliable, the brake is flexible, automatic control and long-distance operation of a work mechanism can be realized, and the brake time is extremely short; 4, the control power is small, and the service life is long; 5, the performance is stable, and the safety and reliability are high; 6, the structure is simple and compact, the operation is simple, and accurate combination can be guaranteed in quite short time; 7, diversified combination and application can be realized through adjusting features of the coils and the magnetic steel; and 8, the linear electromagnetic brake does not need motion at all, apart from an electromagnet, a brake using a permanent magnet does not need electric power, and thus the space and the efficiency can be reduced.
Owner:KEDE NUMERICAL CONTROL CO LTD
Circuit arrangement and method for gate-controlled power semiconductor devices
ActiveUS10263506B2Reduce harmLow control powerTransistorAc-dc conversionPower semiconductor deviceElectricity
A switch module includes a collector connection, an emitter connection, and a gate connection. The switch module includes a plurality of parallel connected switching elements, e.g., insulated-gate bipolar transistors, each having a collector electrode electrically connected to the collector connection, an emitter electrode electrically connected to the emitter connection, and a gate electrode electrically connected to the gate connection. A fault protection device is operatively electrically connected between the gate connection and the switching elements and comprises passive electrical components which are selected such that in the event of a fault in at least one of the plurality of switching elements, a gate-emitter voltage is provided to the gate electrodes of non-faulty switching elements in a passive manner.
Owner:GE ENERGY POWER CONVERSION TECH
Multi-channel frequency containment reserve, method and system for providing control power for controlling a network frequency of a power network and power network
PendingUS20220224117A1Large amplitudeControl is carry-outData processing applicationsSingle network parallel feeding arrangementsControl powerFrequency spectrum
Provided is a system and a method for providing a control power for controlling a network frequency of a power network, which is operated at a nominal network frequency, in the event of a frequency deviation of the network frequency from the nominal network frequency. A time curve of the frequency deviation is spectrally split into at least two different spectral ranges, where each of the spectral ranges is assigned to one of at least two different technical units for providing control power. The required control power is then provided individually or jointly by the technical units in accordance with the spectral split of the time curve of the frequency deviation, where a respective power share, of each technical unit, in the control power corresponds to the spectral share, in the time curve of the frequency deviation, of the spectral range assigned to the corresponding technical unit.
Owner:TRIMET ALUMINIUM SE
Bias correcting phase compensating rate limiter
ActiveUS7627403B2High bandwidth controlIncrease chanceVehicle testingRegistering/indicating working of vehiclesRate limitingElectrical polarity
Owner:THE BOEING CO
Control circuit for constant temperature and constant temperature device
InactiveCN103246298AExtend your lifeImprove reliabilityTemperature control using electric meansElectric machineEngineering
The invention discloses a control circuit for constant temperature and a constant temperature device, which comprises a control circuit board, and further comprises a primary refrigeration motor, a secondary refrigeration motor, a heating device, and a humidifying device all connected with a triphase power supply through solid-state relays, wherein a primary refrigeration motor output control interface, a secondary refrigeration motor output control interface, a heating device output control interface, and a humidifying device output control interface are arranged on the control circuit board; and the solid-state relays of the primary refrigeration motor, the secondary refrigeration motor, the heating device, and the humidifying device are connected with corresponding output interfaces on the control circuit respectively. According to the control circuit, as the solid-state relays have no machine parts, the contact function is finished by a solid device; as the solid-state relays have no moving parts, the solid-state relays can work in the environment with high impact and vibration; and as intrinsic properties of components of the solid-state relays, high service life and reliability of the solid-state relays are determined.
Owner:DONGGUAN KEBAO TESTING EQUIP
Single-chip microcomputer brushless direct-current motor rotor position detecting protector
InactiveCN105577048AHigh control precisionLow control powerEmergency protective arrangements for limiting excess voltage/currentElectronic commutatorsMicrocontrollerMicrocomputer
The invention discloses a single-chip microcomputer brushless direct-current motor rotor position detecting protector. The protector includes an ATMEGA64 single-chip microcomputer, a 5V direct-current power source, an RS485 communication interface circuit, a data storage unit, a power driving module and a plurality of sensor assemblies; the input ends of the ATMEGA64 single-chip microcomputer are connected with a temperature sensor, a current sampling circuit and a key reset circuit; the output ends of the ATMEGA64 single-chip microcomputer are connected with a liquid crystal display circuit; each sensor assembly includes a first Hall sensor module, a first optocoupler isolation circuit, a second Hall sensor module, a second optocoupler isolation circuit, a third sensor Hall module and a third optocoupler isolation circuit which are uniformly distributed around a rotor; and the power driving module includes a fourth optocoupler isolation circuit, a power driving circuit and an over current protection circuit. The single-chip microcomputer brushless direct-current motor rotor position detecting protector of the invention has rotor position, temperature detection and current information detection functions. The single-chip microcomputer brushless direct-current motor rotor position detecting protector has the advantages of complete functions and high practicability.
Owner:SHAANXI YATAI ELECTRIC APPLIANCE
Floor heating device based on graphene heat conduction and radiation of far infrared ray
InactiveCN108006798ALow control powerImprove reliabilityCarbon compoundsLighting and heating apparatusInfraredHeating efficiency
The invention relates to the technical field of heating and discloses a floor heating device based on graphene heat conduction and radiation of far with infrared ray. A heating device is included, andcomprises a corrugated sheet which is provided a heater; one end of a first heating body of the heater is connected with the first guide output end of a first cold wire, and the other end of the first heating body is connected with the second guide input end of a second cold wire; the top face of the corrugated board is provided with a graphene board which is provided with a heat conduction device; a heat conduction block of the heat conduction device is provided with a communicating hole; a temperature sensor is arranged in the communicating hole, and is connected with a temperature controller; the temperature controller is connected with a power source switch and a solid state relay; and an emitting electrode and a collecting electrode of a switch triode of the solid state relay are connected with the first guide input end of the first cold wire and the second guide output end of the second cold wire correspondingly. The floor heating device based on graphene heat conduction and radiation of far infrared ray solves the technical problems that an existing floor heating device is low in heating efficiency and poor in heating effect and has potential safety hazards.
Owner:鄢海军
Full-bridge pilot control switch valve
ActiveCN109578355ASmall sizeLow costOperating means/releasing devices for valvesServomotor componentsFull bridgeHigh pressure
The invention belongs to the field of fluid transmission and control, and particularly relates to a full-bridge pilot control switch valve. The full-bridge pilot control switch valve comprises a valvebody and a main valve element, two driving devices are arranged at the two ends of the valve body correspondingly, adjusting cavities are formed between the driving devices and the main valve element, the adjusting cavities are provided with pilot valve elements, the valve body is provided with first through bridges used for enabling the adjusting cavities to communicate with low-pressure oil outlets, and second through bridges used for enabling the adjusting cavities to communicate with high-pressure oil inlets, the pilot valve elements are driven to enable the adjusting cavities to communicate with the high-pressure oil inlets or the low-pressure oil outlets, hydraulic acting force is formed, and thus the main valve element is moved. The full-bridge pilot control switch valve has the following advantages that 1, the main valve element is driven by the hydraulic pressure, and driving force is greatly increased; 2, the pilot valve elements are designed in the valve body, and the sizeis greatly decreased; and 3, the pilot valve elements are designed for controlling the pressure of control cavities in the two ends of a main valve, the flow required for pilot control is quite small,therefore, the driving force for driving the pilot valve elements is quite small, the size of the electromagnetic driving devices is decreased, and energy saving and emission reduction are achieved.
Owner:温州大学苍南研究院
Vacuum switch with vacuum arc-extinguishing chamber
InactiveCN105590785AReduce wearExtended maintenance cycleHigh-tension/heavy-dress switchesAir-break switchesCombustionControl power
The invention discloses a vacuum switch with a vacuum arc-extinguishing chamber. The vacuum switch comprises insulating housings which are internally provided with an intermediate shielding cover. Furthermore the intermediate shielding cover is internally provided with a corrugated pipe protecting cover. The corrugated pipe protecting cover is internally provided with a corrugated pipe. Furthermore the corrugated pipe is internally provided with a dynamic conductive rod. One end of the dynamic conductive rod is provided with a moving contact, and furthermore one side of the moving contact is provided with a static contact. One end of the static contact is connected with a static conductive rod. A static grading shield is arranged outside the static contact. The insulating housings are connected with each other through an intermediate sealing ring. According to the vacuum switch with the vacuum arc-extinguishing chamber, arc is extinguished in a sealed container, thereby realizing no leakage of arc and hot gases; small clearance between 1mm and 40mm is realized between the static contact and the moving contact; and furthermore the vacuum switch with the vacuum arc-extinguishing chamber has advantages of short arc combustion time, low arc voltage, low arc energy, low contact wearing, large number of allowed on-and-off times, small inertia of the dynamic conductive rod, high suitability for high-frequency operation, small size of the operating mechanism, small size of the vacuum switch, small weight and low control power.
Owner:钟斐琴
Permanent magnet synchronous motor supported by magnetic bearing and magnetic bearing thereof
PendingCN111628608AReduce heat generated by mechanical frictionIncrease operating powerMagnetic circuit rotating partsSynchronous machinesMagnetic bearingFlux loop
The invention discloses a permanent magnet synchronous motor supported by a magnetic bearing and the magnetic bearing thereof. The motor comprises a motor mounting base, a motor shaft and a magnetic bearing, the motor shaft is rotatably mounted in the motor mounting base, the magnetic bearings are mounted at the two ends of the motor shaft, and the bearing mounting piece is mounted on the motor mounting base. The magnetic bearings are mounted on the bearing mounting piece, the magnetic bearings adopt a double-flux loop a permanent magnet flux linkage bears the loads of a high-speed shaft and the components on the shaft, and a coil magnetic circuit controls the load fluctuation of the high-speed shaft, thereby improving the stability of the high-speed rotating shaft.
Owner:ZHEJIANG UNIV OF TECH
Power control method for fuel gas heating water heater
InactiveCN105972828AGuaranteed work performanceImprove work performanceFluid heatersCombustion regulationControl powerWork performance
The invention discloses a power control method of a gas-fired heating water heater, which includes setting the maximum power of hot water and the maximum power of heating; The heating water heater is controlled. On the basis of not changing the hardware equipment of the existing gas-fired heating water heater, the present invention separately sets the maximum power of hot water and the maximum power of heating and independently controls the supply of hot water and heating, and combines the segmental combustion technology to achieve heating When working, the control power is low, ensuring the working performance of the gas heating water heater; when supplying hot water, the control power is high, and the working curve is expanded, so that the gas heating water heater can provide greater water flow and higher water temperature; the present invention It can make full use of the equipment performance of the gas heating water heater, reduce the hardware configuration and energy consumption of the gas heating water heater on the basis of meeting the user's heating and hot water supply, and save energy and reduce emissions.
Owner:MACRO THERMAL ENERGY TECH
Haulage winch with electromagnetic speed-regulating motor
InactiveCN102381648ASimple structureGuaranteed uptimeWinding mechanismsControl powerElectromagnetic shielding
The invention discloses an haulage winch with an electromagnetic speed-regulating motor, which mainly comprises a bearing base (1), a coiling block (2), a safety brake (3) and the electromagnetic speed-regulating motor (4), wherein the right end of the coiling block (2) is connected with the safety brake (3), the left end of the coiling block (2) is connected with bearing base (1), and the right end of the safety brake (3) is connected with the electromagnetic speed-regulating motor (4). The haulage winch with the electromagnetic speed-regulating motor has the beneficial effects that: the electromagnetic speed-regulating motor has a simple structure, reliability for operating, practicability, and convenience for maintaining (no commutator and no slip ring), and is good in starting performance, low in control power, easy to automatically control and remotely control, wide in speed-regulating ratio (1:10), and relatively high in speed-regulating accuracy, so that the haulage winch with the electromagnetic speed-regulating motor is convenient for an operator to realize the medium / distant range control, the number of operators is reduced, and the labor productivity and the safety are improved.
Owner:安徽省新东方矿业机电股份有限公司
An embedded double-spool pilot control mechanism and a fluid control valve
ActiveCN108843638BSimple structureAchieving Proportional ControlServomotor componentsFluid controlEngineering
The invention discloses an embedded double valve core guide and control mechanism and a fluid control valve. The guide and control mechanism includes a valve body, a power level valve core and a pilotlevel valve core; the power level valve core is slidingly arranged in the valve body, a left oil return cavity, a left control cavity, a right control cavity and a right oil return cavity are formedbetween the power level valve core and the valve body, and an oil inlet hole is arranged in the power level valve core; the pilot level valve core is arranged in the power level valve core, and a leftinterval channel and a right interval channel are formed between the pilot level valve core and the power level valve core; when the pilot level valve core moves to the left relative to the power level valve core, a flow passage area between the left control cavity and the left oil return cavity and between the right control cavity and the oil inlet hole is increased, and the flow passage area between the left control cavity and the oil inlet hole and between the right control cavity and the right oil return cavity is reduced; when the pilot level valve core moves to the right relative to thepower level valve core, and a principle is same. The guide and control mechanism is simple in structure, small in volume, light in weight, low in cost, is small in a cross section of the pilot levelvalve core, is not easily influenced by liquid power, and is high in reliability.
Owner:赵荣凯
High-frequency signal transmission/reception device
ActiveCN110249483AReduce lossLow control powerMultiplex system selection arrangementsSimultaneous aerial operationsSignal waveLight flux
The present disclosure relates to radio engineering, and more specifically to high-frequency (HF) signal transmission / reception devices based on photoconductive switching elements. An HF signal transmission / reception device comprises a signal electrode with matching elements disposed along an edge thereof; a ground electrode, a dielectric layer between the signal electrode and the ground electrode, photoconductive elements (PE) each electrically connected to the signal electrode and the ground electrode and arranged in a grid, an excitation signal feed point, and load elements electrically connected to the matching elements. The photoconductive elements each have a switched-off state in the absence of a control light flux and a switched-on state in the presence of a control light flux, The switched-on photoconductive elements form a reflection profile of the signal supplied from the excitation signal feed point. The distance between adjacent photoconductive elements is less than half the wavelength of the excitation signal.
Owner:SAMSUNG ELECTRONICS CO LTD
Damping half-bridge type pilot control switch valve
The invention belongs to the field of fluid transmission and control, and particularly relates to a damping half-bridge type pilot control switch valve. The damping half-bridge type pilot control switch valve comprises a valve body and a main valve core, driving devices are arranged at the two ends of the valve body correspondingly, an adjusting cavity is formed between the driving devices and themain valve core and provided with a pilot valve core, the valve body is provided with a first through bridge used for communicating with the adjusting cavity and a low-pressure oil outlet, and a second through bridge used for communicating with the adjusting cavity and a high-pressure oil inlet, fixed damping is arranged in the first through bridge or the second through bridge, the pilot valve core is driven to enable the adjusting cavity to be connected with or disconnected from the high-pressure oil inlet or the low-pressure oil outlet, hydraulic acting force is formed, and thus the main valve core is moved. According to the damping half-bridge type pilot control switch valve, driving force can be greatly increased, the size of an electromagnetic driving device is decreased, input energy required for drive is reduced, and energy saving and emission reduction are achieved.
Owner:WENZHOU UNIVERSITY
Three-phase cage type asynchronous motor
InactiveCN104836401AReasonable designWide speed rangeAsynchronous induction motorsControl powerElectric machine
The invention relates to the technical field of motors, in particular a three-phase cage type asynchronous motor. The three-phase cage type asynchronous motor comprises an armature, a driving shaft is fixedly installed at the outside center of the armature, the driving shaft is connected with an asynchronous motor for driving the driving shaft to rotate; an output shaft is built in the armature, a magnetic pole is fixedly sleeved and installed out of the output shaft, and an exciting winding is built in the magnetic pole; gaps are formed between the magnetic pole and the armature and between the output shaft and the armature; and the tail part of the output shaft is provided with an electric collecting ring. The three-phase cage type asynchronous motor disclosed by the invention is reasonable in design, wide in speed adjustable range, smooth in speed adjusting, large in starting torque and small in control power, and has the advantages of being reliable in running, light in weight and cheap in price.
Owner:巢惠英
Semiconductor circuit, packaging structure using same and preparation method of packaging structure
PendingCN114785160ALow costLow control powerConversion constructional detailsSemiconductor/solid-state device detailsPhysicsSemiconductor
The invention discloses a semiconductor circuit, a packaging structure using the same and a preparation method of the packaging structure. The semiconductor circuit comprises a driving HVIC chip, a high-side driving module and a low-side driving module, the driving HVIC chip is electrically connected with the high-side driving module, the high-side driving module comprises three upper bridge power elements, and each upper bridge power element is of an RC-IGBT structure; the driving HVIC chip is electrically connected with the low-side driving module, the low-side driving module comprises three lower bridge power elements, and each lower bridge power element comprises an IGBT (Insulated Gate Bipolar Translator) tube and a fly-wheel diode; the input end of the upper bridge power element is electrically connected with the driving HVIC chip; according to the semiconductor circuit, the packaging structure using the semiconductor circuit and the preparation method of the packaging structure, an upper bridge uses an RC-IGBT structure, a lower bridge uses a structure of an IGBT tube and a fly-wheel diode, the module cost is reduced, and the reliability of the module is improved. And meanwhile, the module has the advantages of high input impedance, low control power, simple driving circuit, high switching speed, low conduction voltage drop, large on-state current, low loss, better reverse recovery capability and the like.
Owner:广东汇芯半导体有限公司
High frequency signal transmitting/receiving equipment
ActiveCN110249483BReduce lossLow control powerMultiplex system selection arrangementsSimultaneous aerial operationsSignal waveLight flux
Owner:SAMSUNG ELECTRONICS CO LTD
Warming apparatus for infusion or flushing and application method thereof
PendingCN109498915ASafe and fast heatingHelp maintain body temperatureEnemata/irrigatorsTemperatue controlMicrocontrollerEngineering
The invention relates to a warming apparatus for infusion or flushing and an application method thereof. A liquid container is inserted into an inner cavity of a warming apparatus, the warming apparatus is started, a microcontroller on a main control panel determines a temperature by virtue of a temperature sensor RT1 in a temperature measuring circuit, the microcontroller controls a heating circuit, when the temperature is smaller than a target temperature, the microcontroller transmits a signal to the heating circuit, a heating sheet begins to work, the microcontroller calculates the heatingpower, an upper heating sheet P10 and a lower heating sheet P11 are connected, the upper heating sheet P10 and the lower heating sheet P11 heat a heat conduction plate, and the heat conduction plateheats the liquid container; and when the temperature is approximate to the target temperature, the heating power is lower, after the temperature reaches the target temperature, the liquid container iskept at the target temperature until the infusion or flushing process is ended, the power of the warming apparatus is switched off, and the liquid container is taken out.
Owner:天津沃姆斯医疗器械有限公司
A linear motor permanent magnet brake
ActiveCN105978291BReduce volumeReduce weightPermanent-magnet clutches/brakesMechanical energy handlingAutomatic controlControl power
The invention discloses a linear motor permanent magnetic brake. The linear motor permanent magnetic brake comprises a static iron core assembly and a moving plate assembly, wherein the static iron core assembly comprises multiple coils embedded in the static iron core; the upper portion of each coil is provided with a magnet yoke and magnet steel; the moving plate assembly comprises a fixed plate and a movable plate which are spaced by a spring sheet; and the fixed plate is placed above the magnet yokes and the magnetic steel. The linear motor permanent magnetic brake has the following advantages: 1, linear internal contracting brake is realized, the volume is small, and the weight is light; 2, the processing is simple, and the installation and maintenance are simple; 3, the connection is reliable, the brake is flexible, automatic control and long-distance operation of a work mechanism can be realized, and the brake time is extremely short; 4, the control power is small, and the service life is long; 5, the performance is stable, and the safety and reliability are high; 6, the structure is simple and compact, the operation is simple, and accurate combination can be guaranteed in quite short time; 7, diversified combination and application can be realized through adjusting features of the coils and the magnetic steel; and 8, the linear electromagnetic brake does not need motion at all, apart from an electromagnet, a brake using a permanent magnet does not need electric power, and thus the space and the efficiency can be reduced.
Owner:KEDE NUMERICAL CONTROL CO LTD
A damping half-bridge pilot control on-off valve
Owner:WENZHOU UNIV
A primary side integrated modular independent control battery energy storage system
ActiveCN106899030BImprove energy utilizationImprove machine efficiencyFlexible AC transmissionDc-dc conversionModularityThree-phase
The invention discloses a primary-side integrated modularized independent control battery energy storage system. The battery energy storage system includes a battery unit, which is composed of multiple sets of battery modules connected in series; a main power converter, used to control the main Current, the main power converter is connected in parallel with the battery unit, and the main power converter is connected to the three-phase AC grid; and the auxiliary power converter is connected to multiple sets of battery modules and performs closed-loop independent control on each set of battery modules, which is used to control The difference between the charging and discharging current of each battery module and the main current. The invention realizes the independent control of the differential current part of the battery module through the main power converter and the auxiliary power converter, without independent control of all battery currents, and the primary side adopts an integrated single winding structure to reduce the loss of the converter and cost, and improve the energy utilization rate of the battery module.
Owner:BEIJING JIAOTONG UNIV
Electromagnetic clutch brake
PendingCN108825691ARealize automatic controlEasy to operateMagnetically actuated clutchesCoupling-brake combinationAutomatic controlControl power
The invention discloses an electromagnetic clutch brake. The electromagnetic clutch brake comprises a hollow cylindrical box body, a clutch body and a brake body are fixedly arranged at the left end and the right end of the box body, an intermediate body combination is arranged between the clutch body and the brake body, and a junction box seat is fixedly arranged above the box body; a junction box cover is fixedly installed above the junction box seat, the junction box cover is fixed on the junction box seat through screws, and a wire passing screw sleeve is arranged on one side of the junction box seat; and a base is fixedly installed below the clutch body and the brake body, and the base is fixed below the clutch body and the brake body through bolts. The structure is simple and compact, the operation is simple and convenient, and accurate combination can be guaranteed within extremely short time; moreover, connection is reliable, braking is flexible, and automatic control and long-distance operation of a working mechanism can be realized; and due to a structure that a clutch rotating disc drives a clutch friction plate to rotate is adopted, so that the abrasion is reduced, thepower supply of a coil is reliable and timely, the control power is small, and the service life is long.
Owner:SHAOXING IND SCI DESIGN & RES INST CO LTD
Heavy-load continuously variable transmission and implementation method
PendingCN109751369AImprove transfer abilityLow control powerToothed gearingsGearing controlAutomatic controlHeavy equipment
The invention is composed of a turnover wheel continuously variable transmission, a worm and gear speed control and state automatic control system, and the specific mechanical properties of the worm and gear in the epicyclic gear train and the reverse transmission state are fully utilized, the transmission and the speed change are all completed by gears, and the transmission capacity is greatly improved. The control power is small, the efficiency is improved, the energy consumption is reduced, the novel technology is simple in structure, and has the typical characteristics of universality andpracticability, and is suitable for ordinary vehicles and machines, and is a novel continuously variable transmission suitable for heavy equipment such as large-scale heavy-duty vehicles and large-scale machinery.
Owner:顾愈宝
A Pilot Proportional Control Switch Valve
ActiveCN109538561BLow costReduce volumeServomotor componentsProportional controlElectromagnetic drive
Owner:福建禹工阀业有限公司
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