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63results about How to "No increase in quantity" patented technology

Multicolor 3D (three-dimensional) printer

InactiveCN103770334ANo increase in quantityStreamlining and savingEngineeringColor changes
The invention discloses a multicolor 3D (three-dimensional) printer. The multicolor 3D (three-dimensional) printer comprises a printer frame, a printing raw material mounting rack, a printing platform, a wire feeding module and a printing color changing mechanism, wherein two side plates of the printer frame are fixed at the two sides of a baseplate, the tops of the two side plates are connected to each other through guide rails, and vertical guide rails are respectively arranged at the inner sides of the two side plates; the printing platform is in sliding fit with the vertical guide rails at the inner sides of the side plates and is controlled to lift by a computer; the printing raw material mounting rack is fixed at the outer sides of the side plates; and the printing color changing mechanism mainly comprises a frame, a walking mechanism, an electric push rod, a stepper motor, a gear, a color changing rotary table, a rotating shaft, a material extrusion device, a spring, spray heads and a heating module. The multicolor 3D (three-dimensional) printer simultaneously provides printing materials in a variety of colors and realizes multicolor printing; the color changing mechanism is used for changing the materials; the structure is simplified and economical; the heating module and the spray heads are separated; and the heating module is shared by the multiple spray heads, so that energy sources are saved.
Owner:HENAN NORMAL UNIV

DFIG (Doubly Fed Induction Generator) based direct current grid-connection generating system and control method thereof

The invention discloses a DFIG (Doubly Fed Induction Generator) based direct current grid-connection generating system which comprises multiple DFIGs and a direct current power grid, wherein each DFIG is connected with a stator converter and a rotor converter; the stator converter and the rotor converter are connected with a controller; the stator converter has the functions of converting an alternating current outputted by the DFIG into the direct current while realizing the maximum wind energy tracking running of the DFIG; and the rotor converter has the functions of supplying excitation to a DFIG rotor while realizing the stable voltage control of a DFIG stator end. According to the DFIG based direct current grid-connection generating system, alternating current transmission is changed into direct current transmission for the power by directly utilizing the stator converter; the quantity of the converter is not increased; only the capacity of the stator converter is greater than the capacity of a network-side converter of a traditional DFIG wind power system; and meanwhile, the fluctuation of the voltage at the DFIG stator end does not need to be considered, so that the system structure is simple and the running property is stable; and the control for the DFIG and direct current transmission is simplified.
Owner:ZHEJIANG UNIV

Preparation method of TFT array substrate, array substrate and display device

The invention provides a preparation method of a TFT array substrate, the array substrate and a display device. The preparation method comprises that a grid is formed on a substrate by a composition technology; a grid insulating layer is deposited on the substrate which forms the grid; an IGZO layer is deposited on the grid insulating layer; an etching barrier layer is formed on the IGZO layer by the composition technology; a source and drain pattern layer is formed on the etching barrier layer via the composition technology, and connected with the IGZO layer, and the part, corresponding to position between source and drain electrodes, of the IGZO layer serves as a channel region; a passivation layer is formed on the source and drain pattern layer at the position corresponding to the channel region; and the IGZO layer is patterned by the composition technology to keep the channel region and the part, corresponding to the source and drain pattern layer, of the IGZO layer to form an IGZO pattern layer, and a photomask used in the step of forming the IGZO pattern layer is the same with that used in the step of forming the source and drain pattern layer. One photomask can be saved, and thus, the production cost is reduced.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD

Method for measuring bunting position and energy based on energy distribution vector rate

The invention relates to a method for measuring a bunting position and energy based on an energy distribution vector rate. The method comprises the following steps: arranging more than two sensors in a dispersing form under a sensing panel of touch control equipment; dividing a bunting sensing area of the sensing panel into a plurality of grids; using the given standard energy for gradually bunting all the grids and obtaining a unit energy distribution vector of a standard signal of each grid; and when once bunting is sensed, calculating the unit energy distribution vector of a corresponding bunting signal according to impact wave signal energy sensed by the sensor, comparing the unit energy distribution vector of the corresponding bunting signal with the unit energy distribution vector of the standard signal of each grid in turn, thereby confirming the serial number of the bunting in the grid, and calculating the corresponding bunting energy. The invention changes a method for arranging a group sensor, such as an array sensor, and the like, for sensing the bunting force in the prior art; the method can be applied to the electronic equipment with the sensing panel, such as, a touch screen, a game control plate, a shooting target, and the like; and the method has a function of assisting or replacing the present positioning method based on the technologies, such as resistance, capacitance, and the like.
Owner:BEIJING TAIFANG TECH CO LTD

Control rod distribution structure of 177 reactor core

The invention discloses a control rod distribution structure of a 177 reactor core. The control rod distribution structure comprises 61 bundles of control rods, wherein the 61 bundles of control rods are divided into 8 groups, namely a group R, a group G1, a group G2, a group N1, a group N2, a group SA, a group SB and a group SC; the group R comprises temperature adjusting rods; the group G1, the group G2, the group N1 and the group N2 comprise power compensation rods; the group SA, the group SB and the group SC comprise shutdown rods; each of the group G1 and the group G2 is composed of grey body control rods; and the other groups are composed of black body control rods. According to the control rod distribution structure, the quantities of the temperature adjusting rods, the power compensation rods and the shutdown rods are set, the temperature adjusting rods, the power compensation rods and the shutdown rods are reasonably grouped, and space positions of all the control rods are optimized, so that an enough shutdown allowance is provided for the 177 reactor core by adopting the 61 bundles of control rods under the condition that holes in a top cover of a pressure container are not increased; and the shutdown allowance meets the safety requirements of annual reloading and 18-month reloading.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

DFIG (Doubly Fed Induction Generator) based direct current grid-connection generating system and control method thereof

The invention discloses a DFIG (Doubly Fed Induction Generator) based direct current grid-connection generating system which comprises multiple DFIGs and a direct current power grid, wherein each DFIG is connected with a stator converter and a rotor converter; the stator converter and the rotor converter are connected with a controller; the stator converter has the functions of converting an alternating current outputted by the DFIG into the direct current while realizing the maximum wind energy tracking running of the DFIG; and the rotor converter has the functions of supplying excitation to a DFIG rotor while realizing the stable voltage control of a DFIG stator end. According to the DFIG based direct current grid-connection generating system, alternating current transmission is changed into direct current transmission for the power by directly utilizing the stator converter; the quantity of the converter is not increased; only the capacity of the stator converter is greater than the capacity of a network-side converter of a traditional DFIG wind power system; and meanwhile, the fluctuation of the voltage at the DFIG stator end does not need to be considered, so that the system structure is simple and the running property is stable; and the control for the DFIG and direct current transmission is simplified.
Owner:ZHEJIANG UNIV

Coaxial rotor wing control device

The embodiment of the invention provides a coaxial rotor wing control device. The output end of a gearbox of the device sleeves an outer shaft and an inner shaft separately, and the outer shaft is hinged to the inner shaft and sleeved with a second swash plate-stator and a second swash plate-rotor; and a transmission shaft is placed in the inner shaft, and an inner shaft head frame is fixedly installed on the end face of the inner shaft and hinged to the second turning rod. The transmission shaft is respectively hinged with the first turning rod and the second turning rod, the first turning rod is respectively hinged with the first pull rod and the inner shaft head frame, the connecting rod is movably hinged with the first tilting tray, the first tilting tray is hinged to the first steering engine and the first anti-torque arm, the first steering engine is hinged to the outer side wall of the gearbox, the gearbox is hinged to the second steering engine, the second steering engine is fixedly hinged with the second tilting tray, the second tilting tray-stator is hinged with the second anti-torsion arm, and the movable outer side wall of the second inclined disc is hinged to one end of a second pull rod. According to the device provided by the invention, the lifting force can be increased under the condition that the space occupied by the blades is not changed.
Owner:深圳联合飞机科技有限公司

A coaxial rotor control device

The embodiment of the present invention provides a coaxial rotor control device, the output ends of the gearbox of the device are respectively sleeved on the outer shaft and the inner shaft, the outer shaft is hingedly mounted on the inner shaft, and the second swash plate-fixing and The second swash plate moves; the transmission shaft is placed in the inner shaft, and the inner shaft head frame is fixedly installed on the end surface, and is hingedly installed on the second steering rod; the transmission shaft is respectively connected with the first steering rod and the second steering rod The rod is hinged; the first direction changing rod is respectively hinged with the first pull rod and the inner axle head frame; the connecting rod is hinged with the first swash plate; the first swash plate is fixedly hinged with the first steering gear and the first anti-torque arm respectively ; The first steering gear is hingedly mounted on the outer wall of the gearbox; the gearbox is hinged with the second steering gear; the second steering gear is hinged with the second swash plate; the second swash plate is hinged with the second anti-torsion arm ; The second swash plate-moving outer wall is hinged with one end of the second pull rod. The device provided by the invention can increase the lift force under the condition that the space occupied by the blade remains unchanged.
Owner:深圳联合飞机科技有限公司
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