Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

310results about How to "Achieve individual control" patented technology

Vacuum melting gas atomization milling device

The invention discloses a vacuum melting gas atomization milling device. The vacuum melting gas atomization milling device comprises a smelting furnace body, at least two tundish functional modules, a moving mechanism and an atomization device, wherein a melting crucible is arranged inside the smelting furnace body; the melting crucible pours materials into the tundish functional modules through a material pouring electric elevator; the tundish functional modules are mounted in the position, above the atomization device, inside the smelting furnace body; the tundish functional modules can perform horizontal sliding and / or up-down lifting motion inside the smelting furnace body through the moving mechanism; the moving mechanism is used for changing the tundish functional modules for utilization; and the tundish functional modules are connected with the atomization device. According to the vacuum melting gas atomization milling device, the structure is simple; the plurality of tundish functional modules and the matched moving mechanism are adopted, so that changing between the plurality of tundish functional modules is achieved, and the problem that in the prior art, when a tundish functional module breaks down, overhauling requires to be carried out under the condition of production halt and the vacuum melting gas atomization milling operation cannot be continuously carried out is solved; and the operation is convenient.
Owner:HUNAN JUTA TECH

Active frequency selective surface suitable for electromagnetic switch

The present invention discloses an active frequency selective surface suitable for an electromagnetic switch. The active frequency selective surface comprises a dielectric substrate, a plurality of first-layer structural units and the second-layer structural units having the same number with the first-layer structural units, and the plurality of first-layer and second-layer structural units are arranged on the upper and lower surfaces of the dielectric substrate respectively and periodically and respectively comprise a plurality of metal patches, and the metal through holes are arranged at thetwo ends of each metal patch respectively and are used to communicate the metal patches in the first-layer structural units and the metal patches in the second-layer structural units. Each metal patch is equipped with a gap, a PIN pipe is arranged at each gap, and the edge feeder lines used for biasing the PIN pipes are arranged on the upper or lower surface of the dielectric substrate along theedges of the dielectric substrate. The active frequency selective surface of the present invention has the advantages of being easy to process and easy and simple to operate, being simple in structure, being applied to the aspects, such as an intelligent invisible antenna cover, an intelligent filter, etc.
Owner:SHANGHAI RADIO EQUIP RES INST

Spatial light modulator-based dual-beam optical tweezers system

The invention discloses a spatial light modulator-based dual-beam optical tweezers system. The system includes a laser, a first telescope system, a half wave plate, a first reflector, a spatial light modulator, a quarter-wave plate, a focusing lens, a second reflector, a second telescope system, an objective lens and a sample stage which are arranged sequentially along an optical path, wherein the half wave plate is used for adjusting the ratio of horizontal polarized light and vertical polarized light in a received beam, the first reflector is used for reflecting the received beam to a corresponding modulation area on the spatial light modulator, and the spatial light modulator is provided with two modulation areas loaded with different phase image information; the beam is subjected to phase modulation once, and then, the phase-modulated beam passes through the quarter-wave plate and the focusing lens, and thereafter is reflected by the second reflector; the reflected beam passes through the focusing lens and the quarter-wave plate again, and arrives at the other modulation region of the spatial light modulator, and thereafter, passes through the second telescope system and the objective lens sequentially, and arrives at the sample stage. With the spatial light modulator-based dual-beam optical tweezers system of the invention adopted, the application range of the optical tweezers can be greatly extended, and experiment accuracy can be improved.
Owner:CHINA JILIANG UNIV

Novel high-performance conformal array antenna

The invention relates to a novel high-performance conformal array antenna, and solves the technical problems of low gain, narrow bandwidth and poor anti-interference capability. The antenna comprisesconformal array antenna units arranged in an array, wherein the conformal array antenna units use a traveling wave antenna feeding structure with two-port feeding, and the size is reduced through thefractal technology, so that the radiation influence of a curved surface on the antenna units is reduced; a slot coupling feed structure is adopted to improve the bandwidth of the antenna units, reducethe surface wave loss of the antenna unit and enable the radiation element to be better isolated from the feed network. A liquid crystal tuning circuit is adopted to apply a liquid crystal material to an antenna unit; the liquid crystal equivalent dielectric constant is changed through electric tuning, so that the resonant frequency of the antenna unit is changed, the radiation characteristic ofthe conformal array antenna unit in a required frequency band is controlled, the contribution of different antenna units to a main wave beam is controlled, the anti-interference capability is enhanced, the problem is better solved, and the conformal array antenna can be used in an antenna.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA +1

Three-level four-leg active filter compensation distribution network neutral current control method

ActiveCN104218587ANot affected by grid waveform distortionUnaffected by waveform distortionHarmonic reduction arrangementAc network to reduce harmonics/ripplesThree levelAlternating current
The invention provides a three-level four-leg active filter compensation distribution network neutral current control method. The method includes the steps of extracting harmonic waves and the sum of negative sequence components and zero sequence components of a line current as a command current of the controlling; setting the alternating current side three-phase current of an active filter and a neutral current as feedback currents, and performing feedforward decoupling control and dq0-abc conversion on each current component of dq0 axis for outputting three-phase voltage after respectively performing abc-dq0 conversion on the command current and the feedback currents; separately performing compensation control on the neutral current. The purpose of direct current side voltage balance and stability can be achieved through direct current side voltage stability and balance control. The three-level four-leg active filter compensation distribution network neutral current control method can effectively solve the problems such as overcurrent of a neutral line due to load imbalance in a three-phase four-wire system and is quick in response of a control system, capable of achieving dynamic real-time compensation and good in control effects.
Owner:STATE GRID CORP OF CHINA +1

Air conditioner outdoor unit and air conditioner

The invention relates to the field of air conditioners, in particular to an air conditioner outdoor unit and an air conditioner, and aims at solving the problem about disturbance of an air supplementing pipeline due to the high flow speed of a refrigerant in the air supplementing pipeline and the problem about service life shortening due to compressor liquid return. For the purpose, the outdoor unit comprises a pressure container arranged on the air supplementing pipeline, the pressure container comprises a container body, and at least one cavity with the diameter larger than the diameter of the air supplementing pipeline is formed by the container body, so that the flow speed of the refrigerant is reduced; and the pressure container has the gas-liquid separation function, and accordinglythe refrigerant flowing out of a refrigerant outlet is a gas-state refrigerant. Through the pressure container, the flow speed of the refrigerant in the air supplementing pipeline is reduced, the refrigerant enters a compressor through an air supplementing enthalpy increasing connector in the gas state form, vibration of the air supplementing pipeline can be reduced, compressor liquid return is avoided, and the service life of the compressor is prolonged.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1

Control method and remote control system for setting wireless networking by means of remote control

The invention provides a control method and a remote control system for setting wireless networking by means of remote control. The control method is characterized in that search instructions are outwardly transmitted by remote controllers, information with identification of devices is replied to the remote controllers by the devices to-be-coded by means of remote control after the search instructions are received by the devices to-be-coded by means of remote control, devices required to be controlled or networked are selected by the remote controllers according to received reply, different serial numbers and data and networking codes are reassigned to the devices, coding instructions with the serial numbers, the data and the networking codes are transmitted to the devices to-be-coded by means of remote control, filter conditions are reset by the devices to-be-coded by means of remote control according to the coding instructions, and the devices can respond to control instructions transmitted by devices in group networks and control instructions transmitted by the remote controllers after the filter conditions are reset. The control method and the remote control system have the advantages that the remote controllers and the devices to-be-coded by means of remote control can additionally interact with one another, accordingly, the devices to-be-coded by means of remote control can be found and configured by the remote controllers, one-to-many respective control and group batch control can be implemented, or interconnection and control logic relations can be established among the devices in the same group after the devices are grouped and coded.
Owner:SHENZHEN MERRYTEK TECHNOLOGY CO LTD

Refrigerator

The invention discloses a refrigerator. The refrigerator comprises a freezing chamber, a refrigerating chamber and a variable-temperature chamber. The refrigerator is provided with a freezing refrigeration system and a refrigerating variable-temperature refrigeration system, wherein the freezing refrigeration system and the refrigerating variable-temperature refrigeration system are independent from each other, the freezing refrigeration system is used for carrying out refrigeration on the freezing chamber, and the refrigerating variable-temperature refrigeration system is used for carrying out refrigeration on the refrigerating chamber and the variable-temperature chamber. A freezing air channel is arranged in the freezing chamber, a refrigerating variable-temperature air channel is arranged in the refrigerating chamber or the variable-temperature chamber, a refrigerating air guiding channel which is applicable to being communicated with the refrigerating variable-temperature air channel is arranged in the refrigerating chamber, and a variable-temperature air guiding channel which is applicable to being communicated with the refrigerating variable-temperature air channel is arranged in the variable-temperature chamber. According to the refrigeration systems of the refrigerator, independent control over the temperatures of the three temperature areas including the freezing chamber, the refrigerating chamber and the variable-temperature chamber can be achieved, the freezing chamber, the refrigerating chamber and the variable-temperature chamber cannot influence one another, and the different use requirements of a user for corresponding refrigeration chambers can be met.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD

Water circulation module and water heating system adopting water circulation module

The invention provides a water circulation module suitable for being installed in a water heating system. The water heating system comprises a water heating device, a cold water pipeline and a hot water pipeline, wherein the cold water pipeline communicates with a water inlet of the water heating device, and the hot water pipeline communicates with a water outlet of the water heating device. The water circulation module is arranged outside the water heating device and is connected between the hot water pipeline and the cold water pipeline so that the water circulation module can selectively communicate with the hot water pipeline and the cold water pipeline, accordingly, a circulation water path is established between the water circulation module and the water heating device, and then cold water in the circulation water path is heated. The water circulation module comprises a main water way, a temperature detection device and a water pump, wherein the temperature detection device is connected with the main water way in a related manner so as to detect the temperature of water in the main water way, and the water pump is arranged in the main water way. The water pump can be controlled to be started or stopped according to the water temperature detected by the temperature detection device. Through the structure, pre-heat water circulation can be established in a water utilization pipeline where the water circulation module is located through the water circulation module, and independent control over preheat water circulation can be achieved.
Owner:VAILLANT GRP (CHINA) HEATING COOLING & ENVIRONMENTAL TECH CO LTD +1

Door and lock integrated smart door

The invention discloses a door and lock integrated smart door which comprises a door frame and a door body. The door body is located at an inner cavity of the door frame, first concealed type camerasare arranged at the upper right corner of the front side wall of the door frame and the upper left corner of the door body, and two sets of second concealed type cameras are vertically arranged on thecentral axis of the front side wall of the door body. Touch screens are arranged at the center of the front side wall and the center of the rear side wall of the door body, and a wireless data receiver and an emergency door closing lock are arranged at the upper right corner of the front side wall of the door body. A handle and a scanner are arranged on the right side of the front side wall of the door body, and a same handle as the front side wall is arranged on the left side of the rear side wall of the door body. An internal quick opening button is arranged on the rear side wall of the door body, a host cooling hole is formed in the right side of the rear side wall of the door body, and a standby power module is arranged in the inner cavity of the door body. According to the door and lock integrated smart door, the problem of door and lock separating at preset is solved, a lock body is avoided, a whole door has a lock function, single control over an upper-lower door closing mechanism is achieved, the safety of an entry door is improved, and malicious opening is avoided.
Owner:李柏霏

Four-shaft combined precise drive steering engine device

The invention relates to a four-shaft combined precise drive steering engine device which comprises motor driving systems, rudder shaft driving units and a steering engine main body structure, wherein the steering engine main body structure is used for connecting the steering engine device to the interior of a portable guided missile main body; totally four sets of motor driving systems are uniformly distributed along the peripheral direction; the output end of each set of motor driving system is connected with a worm; totally four sets of rudder shaft driving units are arranged, and each set comprises a worm, a worm gear and a rudder shaft; the worms drive the worm gears to rotate under the drive of the motor driving systems; and the worm gears drive the rudder shafts to rotate by virtue of bearings arranged therein. The steering engine main body is integrally processed, the device structure is simple, each component is convenient to dismount and maintain, the whole device has the outer diameter of less than 60mm, can be fixedly connected with the portable guided missile or rocket gun main body, has the inner diameter of more than 15mm and can be used for wiring of various communication lines. Meanwhile, the total weight of the whole device is less than 1kg, and the weight proportion of the device is reduced in the weight of the portable guided missile.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS

Shield grid groove type MOSFET process method

The invention discloses a shield grid groove type MOSFET process method, comprising: a first step, with silicon nitride and silicon oxide as a hard mask, etching a substrate to form a groove; a second step, depositing a layer of silicon oxide on the side wall and the bottom of the groove; a third step, filling polysilicon in the groove and etching back; a fourth step, etching back the polysilicon, and removing the silicon oxide on the side wall of the groove; a fifth step, depositing a layer of silicon nitride to cover the inner side wall of the groove and the polysilicon; a sixth step, etching the silicon nitride above the polysilicon to expose the polysilicon; a seventh step, depositing silicon oxide above the polysilicon; an eighth step, removing the silicon nitride on the entire device; a ninth step, depositing silicon oxide, depositing polysilicon and etching back to form a groove polysilicon grid; and a tenth step, forming a body region, injecting a source region, and depositing interlevel dielectric to form contact hole fabrication metal process. The process disclosed by the invention is used for realizing single control of oxide films and gate oxide between the polysilicon, and solving the problem of relatively high current leakage of the grid of the device.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Steering mechanism and suspension integrated steer-by-wire device and automobile

The invention discloses a steering mechanism and suspension integrated steer-by-wire device which includes a steering motor, a decelerating mechanism connected with an output end of the steering motor, a sliding column shaft connected with the decelerating mechanism and a sliding column shaft sleeve which is matched with the sliding column shaft through a sliding rotating bushing for mounting, sothat the sliding column shaft and the sliding column shaft sleeve can slide relatively in the axial direction and rotate simultaneously in the radial direction. The outer portion of the lower end of the sliding column shaft sleeve is connected with a hub motor casing of a wheel through a steering knuckle, so that a hub motor and the sliding column shaft rotate synchronously. The invention discloses an automobile. The steering mechanism and suspension integrated steer-by-wire device can meet the performance requirements of the finished automobile; particularly, a better scheme is provided for the adoption of steer-by-wire by large heavy duty vehicles, and the steering mechanism and suspension integrated steer-by-wire device has the advantages of being simple in structure and small in occupied space, having easiness in technology implementation and facilitating the integration with the finished vehicle.
Owner:JILIN UNIV

Resonant dual-power-supply aircraft electromagnetic transmission device

The invention discloses a resonant dual-power-supply aircraft electromagnetic transmission device. A high-power main circuit module comprises an alternating-current generator set, a direct-current onboard power supply, a power-conversion main circuit, a resonant main circuit and a transmitter circuit; the alternating-current generator set and the direct-current onboard power supply are in parallel connection with the power-conversion main circuit, the power-conversion main circuit converts onboard power supply direct current or generator set alternating current into high-frequency alternating current through a high-frequency inverter bridge or a controllable rectifier bridge-high-frequency inverter bridge, the high-frequency alternating current is converted into direct current through a high-frequency uncontrolled rectifier bridge, and the direct current is inverted into alternating-current square waves through half-bridge inverter; the power-conversion main circuit is connected with the resonant main circuit, and the resonant main circuit converts the alternating-current square waves into sine waves with a constant resonant frequency; and the resonant main circuit is connected with the transmitter circuit, and the transmitter circuit transmits required electromagnetic waves with a transmission frequency and a waveform. The resonant dual-power-supply aircraft electromagnetic transmission device reduces the capacity, hoisting weight and size of a hoisting alternating-current generator by utilizing a parallel power supply manner.
Owner:BEIJING UNIV OF TECH

Fresh air-capillary network air combined adjustment system and fresh air temperature adjustment method in winter and summer thereof

The invention discloses a fresh air-capillary network air combined adjustment system and a fresh air temperature adjustment method in winter and summer thereof, and belongs to the field of air conditioning equipment. The fresh air-capillary network air combined adjustment system comprises an outdoor unit, a fresh air unit and a radiation temperature adjusting unit; the outdoor unit comprises a compressor, an outdoor main pipe and a four-way valve; the radiation temperature adjustment unit comprises a temperature adjustment heat exchanger, an adjustment valve and a capillary network; and the fresh air unit comprises a refrigeration heat exchanger and a reheating heat exchanger. The outdoor unit provides corresponding working medium for the fresh air unit and the radiation temperature adjusting unit through the work of the compressor, so that the fresh air unit and the radiation temperature adjusting unit can work independently and stably, the cost for simultaneous working of the fresh air unit and the radiation temperature adjusting unit is reduced, and the space required for installing equipment is reduced. In addition, the fresh air temperature adjustment method in winter and summer of the fresh air-capillary network air combined adjustment system reasonably distributes the flow rate of a working medium discharged from an exhaust port of the compressor, so that the fresh air temperature treatment effect is capable of being improved and the stable operation of the whole system is facilitated.
Owner:NANJING HUIHE CONSTR TECH CO LTD

Wearable-type airbag device used for rehabilitation training and protection of upper limbs

The invention relates to a wearable-type airbag device used for rehabilitation training and protection of upper limbs. The device includes an airbag body, a wearing part and an air supply mechanism; the airbag body is used for sleeving the upper limb of one side of the human body, composed of a shoulder joint part, an arm part and a hand part which are connected in sequence, and internally provided with a pressure sensor; an inflating and deflating port is formed in the airbag body, and at least one detachable supporting rod is arranged on the inner side face of an elbow joint of the arm partof the airbag body; a wearing part is annular and is connected to the shoulder joint part and used for being worn on the human body from the armpit of the other side of the human body; the air supplymechanism is detachably connected to the inflating and deflating port. Compared with the prior art, the wearable-type airbag device has the advantages that an embedded air channel is formed, and air is supplied by the embedded air channel alone. By providing two training patterns, ROM rehabilitation training can be carried out under cooperation with a rehabilitation training model, the shoulder joint of a patient in a flaccid paralysis period can be effectively protected and prevented from being dislocated, and meanwhile recovery of muscle strength of the patient is facilitated.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products