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79results about How to "Meet diverse requirements" patented technology

Vehicle-mounted charging system of electric vehicle

The invention relates to a vehicle-mounted charging system of an electric vehicle, comprising a vehicle-mounted battery, a single / three-phase power conversion module, a direct current charging device, a charging contactor, a signal detection unit and a micro control unit (MCU), wherein the single / three-phase power conversion module, the direct current charging device, the charging contactor, the signal detection unit and the MCU are respectively connected with the vehicle-mounted battery; the direct current charging device comprises a voltage boosting module and a voltage reduction module which can charge the vehicle-mounted battery through boosting or reducing the voltage of an external direct current charging power supply; and the single / three-phase power conversion module directly multiplexes a vehicle-mounted inverter of the electric vehicle with an alternating / direct current bidirectional inversion function. In the invention, three charging modes of the electric vehicle are integrated in one vehicle-mounted charging system and are flexible and selectable, the vehicle-mounted charging system can be charged by three different charging voltages, i.e. external direct current voltage, single-phase alternating current voltage and three-phase alternating current voltage, and four alternating current charging modes can meet the diversity requirement of the charging modes of current electric vehicles; and meanwhile, the original vehicle-mounted inverter components can be multiplexed, thereby effectively reducing the cost.
Owner:TEN PAO ELECTRONICS HUIZHOU

Simulation method for random properties of nuclear signals

The invention discloses a simulation method for the random properties of nuclear signals, which is characterized by comprising a digital signal processor (DSP), a detector, a signal processing module, a multichannel data acquisition analytical module, a power supply management module, a multichannel simulation signal output module, a man-machine interface and the like; the DSP digital signal processor is connected with the multichannel data acquisition analytical module, the multichannel simulation signal output module and the man-machine interface, and is also connected with a computer; the signal processing module is connected with the multichannel data acquisition analytical module and the detector respectively; and the multichannel data acquisition analytical module is connected with the DSP digital signal processor. In the simulation method, a parameterized model is adopted, so the random properties of the nuclear signals in a radioactive site can be learned conveniently and flexibly and can be simulated vividly by random sampling; and model parameters can be adjusted according to requirements so as to adapt to the simulation of the random properties of the nuclear signals under different radioactive measurement conditions and on-site environments. In addition, pulse signals of multiple waveforms also can be generated. The nuclear random signals generated by the simulation method meet the requirement of nuclear instruments on the diversification of the nuclear signals in the study of a nuclear signal processing process.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Density adjusting device of computer silk stockings machine

InactiveCN101994206AStable density controlQuality improvementWeft knittingEngineeringCam
The invention discloses a density adjusting device of a computer silk stockings machine, which comprises a density triangular seat, a base cylinder and the front frame of the cylinder, wherein the density triangular seat is connected with a density triangular base in a sliding mode; the density triangular base is connected with a triangular sliding block in a sliding mode; the triangular sliding block is provided with a needle pressing triangle and a needle raising triangle; a full-position piston and a semi-position piston are arranged in the base cylinder and are used for respectively pushing the density triangular base to move forwards corresponding to the density triangular seat; a motor, an adjusting cam and a density cam are fixed on the density triangular base; the adjusting cam is coaxially connected with the motor and is abutted against one side of the rear end of the density cam; the front end of the density cam passes through the density triangular base and is matched with the triangular sliding block in a sliding mode; and the front frame of the cylinder is connected with the density triangular base and is provided with a motor frame piston abutted against the other side of the rear end of the density cam. The density adjusting device has the capability of realizing multichannel combined knitting, no gap density adjustment and more stable density control on the density.
Owner:NINGBO YUREN NUMERICAL CONTROL TECH

Reamed carrier and stiffness core multi-component composite pile and soft soil foundation strengthening construction method

The invention relates to a reamed carrier and stiffness core multi-component composite pile and a soft soil foundation strengthening construction method. The reamed carrier and stiffness core multi-component composite pile comprises a discrete pile, a stiffness core pile is inserted into the discrete pile vertically and penetratingly, the bottom end of the stiffness core pile is flush with the bottom end of the discrete pile, and the bottom ends of the stiffness core pile and the discrete pile are jointly connected with a spherical carried reamed head to form the reamed carrier and stiffness core multi-component composite pile. The soft soil foundation strengthening construction method by the reamed carrier and stiffness core multi-component composite piles includes driving a plurality of the discrete piles, the reamed carrier and stiffness core composite piles and/or stiffness core composite piles into a soft soil foundation; the construction steps of the discrete piles, the reamed carrier and stiffness core composite piles and the stiffness core composite piles include (1) discrete pile construction, (2) reamed carrier and stiffness core composite pile construction and (3) stiffness core composite pile construction. The composite pile has the advantages of good drainage effect and high bearing capacity, and the method has the advantages of simple and mature technology, remarkable strengthening superiority and high benefit.
Owner:ZHEJIANG INST OF COMM

Curtain wall with adjustable curtain wall board mounting angle and angle adjusting method

PendingCN110541509AMeet diverse requirementsFree from impact damageWallsArchitectural engineering
The invention discloses a curtain wall with the adjustable curtain wall board mounting angle and an angle adjusting method. The curtain wall comprises a mounting fixing part, an elastic buffer assembly and a connecting rod assembly; the elastic buffer assembly and the connecting rod assembly are horizontally connected to the outer sides of the upper portion and the lower portion of the mounting fixing part. The inner side of the mounting fixing part is fixed to a building main body, the outer end of the elastic buffer assembly is hinged to the inner side of a curtain wall board, the curtain wall board can rotate around the hinge position, the connecting rod assembly comprises a connecting rod, an inserting part and a screw rod, the inner side of the inserting part is hinged to the outer end of the connecting rod, the outer side of the inserting part is inserted with the lower edge of the curtain wall board, the lower side of the connecting rod is connected with a nut base, the inner end of the screw rod is connected into the nut base, the outer end of the screw rod is hinged to the inserting part, the mounting fixing part is fixed to the building main body, the screw rod is rotatedto drive the curtain wall board to rotate inwards or outwards through the inserting part, the curtain wall board mounting angle adjusting is achieved, after the curtain wall board is adjusted to theproper angle, the curtain wall board is positioned through the screw rod and the elastic buffer assembly, and diverse needs of the mounting angle can be met. The elasticity of the elastic buffer assembly can protect the curtain wall board against impact damage.
Owner:中建五局装饰幕墙有限公司

Powder spreading device and powder spreading method capable of automatically switching scrapers in SLM forming process

The invention provides a powder spreading device and a powder spreading method capable of automatically switching scrapers in the SLM forming process. The powder spreading device comprises a powder spreading trolley, scraper frames, a flexible scraper, a hard scraper, motors and a control system. A software program selects the flexible scraper or the hard scraper according to the shape of a current slicing layer of a part for powder spreading, the control system receives an instruction of the software program, then the selected scraper is descended to a powder spreading surface through the corresponding motor, and meanwhile, the unselected scraper is lifted by a certain distance and is separated from the contact with the powder spreading surface; and when the scrapers need to be switched,the control system firstly lowers the selected scraper to the same height as the previous powder spreading scraper through the corresponding motor, and then the previous powder spreading scraper is lifted by a certain distance and is separated from the contact with the powder spreading surface. According to the powder spreading device and the powder spreading method, the problem that for a part which has a large breadth or a fine structure and has high size precision requirement, a scraper is prone to be clamped or the part is prone to be scratched when the scraper is used for powder spreadingon the part is solved.
Owner:SHANGHAI SPACE PRECISION MACHINERY RES INST

Integrated pluralistic oil production wellhead device

The invention relates to a pluralistic oil production wellhead device. The pluralistic oil production wellhead device is characterized in that a pluralistic device is equipped at the bottom of a production tree; a housing is arranged in the integrated pluralistic device, a flange is arranged at the upper part of the housing, a double ram type preventer is equipped at the middle and upper part of the housing, side outlet channel pipelines are respectively equipped on two side outlet channel interfaces at the middle and lower part of the housing, and a sleeve internal thread is arranged at the lower part of the housing for connecting with a sleeve; and multiple groups of integrated holes for mounting jackscrew components are formed in the outer circle of the flange at the upper part of the housing, an inner taper hole of the flange at the upper part is in close fit with a sealing part at the upper part of a mandrel type oil pipe hanger, a sealing position at the lower part of the mandrel type oil pipe hanger is processed between the double ram type preventer at the middle and upper part and the side outlet channel interfaces at the middle and lower part, and the remaining holes are of through holes. The pluralistic oil production wellhead device disclosed by the invention meets the pluralistic requirements of integrating oil test and production, operation, fracturing and well repair into a whole, has the advantages of simple structure, convenience in use and capabilities of saving operation time and reducing operation cost, and further has significance for pluralism of oil test and production, operation, fracturing and well repair and production optimization.
Owner:JIANGSU XINCAIYANG ELECTROMECHANICAL TECH

Modularized LED (light emitting diode) lamp

The invention discloses a modularized LED lamp. The modularized LED lamp comprises at least one LED lamp module, wherein the LED lamp module includes a secondary light distribution lens, a package case, a circuit board, and an LED chip communicated with the circuit on the circuit board, wherein the secondary light distribution lens includes a collimating lens and a flat lens arranged on the front end face of the collimating lens; the collimating lens has a fully reflecting surface on the side surface; the light emergent surface of the flat lens consists of a plurality of rectangular pyramid-shaped micro-lenses; a refraction groove for placing the LED chip is arranged on the rear end face of the collimating lens; a recess is formed on the side surface of the collimating lens close to the flat lens; a bump matching the recess is arranged on the package case; and a jack is arranged on the package case and is connected with a conducive metal part communicated with the circuit on the circuit board. The modularized LED lamp provided by the invention can be extended randomly according to requirement without limit to installation conditions, and the spliced LED lamp module has no dark zones or dark spots.
Owner:中国科学院宁波材料技术与工程研究所湖州新能源产业创新中心

Novel electron pressure controller

The invention provides a novel electron pressure controller with compact structure, simple installation, precise control and reliable performance, comprising a main body which is provided with a water inlet and a water outlet, a diaphragm which is arranged in a chamber of the main body, a spring and a pressure regulating rod component which press on the diaphragm tightly, a check valve component in the water inlet, built-in magnets in the pressure magnetic steel base component and the check valve component, and further comprises a magnetic control element reed pipe which is arranged opposite to the magnets; the reed pipe is connected with the control circuit; the two sides of the main body are fixed with a back cover and a face plate; electromagnetic induction is carried out between the built-in magnets in the pressure magnetic steel base component and the check valve component and the reed pipe to generate electrical signals to automatically control the starting and stopping of the water pump. The invention has the advantages that the pressure component structure is designed delicately to ensure a compact structure of the controller, and the pressure regulating structure is designed with a reliable performance to ensure that the products can meet diverse needs of customers, thus the product in the invention can be widely applied to automatic control of the water supply system of water pumps.
Owner:JIANGSU HUANLI TECH DEV CO LTD

Improved electronic pressure controller

The invention relates to an improved electronic pressure controller, which is compact in structure, easy to mount, accurate in control and reliable in performance. The improved electronic pressure controller comprises a midbody provided with a water inlet and a water outlet, a pressure diaphragm arranged in an accommodating cavity in the midbody, a large spring and a pressure regulating rod assembly which press the diaphragm, and a check valve assembly in the water inlet; magnets are embedded in a pressure rod seat assembly and the check valve assembly, electronic control elements of reed pipes are arranged corresponding to the magnets, and are connected with a control circuit; two sides of the midbody are fixed with a rear cover and a panel; and magnets embedded in the pressure rod assembly and the check valve assembly and the reed pipes generate electromagnetic induction to generate electrical signals to automatically control the start and stop of a water pump. The controller has the advantages that: a delicate structural design of pressure parts makes the controller compact in structure, and a pressure regulating structural design is reliable in performance and makes the product better meet the diversified requirements of users; and the product can be widely applied to automatic control of water supply systems of water pumps.
Owner:JIANGSU HUANLI TECH DEV CO LTD

Four-way valve

The invention discloses a four-way valve which comprises a valve body and a valve element. The valve body is provided with a first port, a second port, a third port and a forth port. The valve elementis movably arranged in a valve cavity and has a first position, a second position and a third position. The valve element is provided with a communicating portion protruded towards the inner wall ofthe valve cavity, the communicating portion is provided with a communicating channel, a first cavity, a second cavity and a third cavity are defined by the valve element, the communicating portion andthe inner wall of the valve cavity, the communicating channel communicates with the second cavity, and the third port communicates with the second cavity. At a first position, the first port and second port communicate with the first cavity, and a forth port communicates with the second cavity. At the second position, the first port communicates with the second cavity through the communicating channel. At the third position, the second port communicates with the second cavity, and the first port and the fourth port communicate with the third cavity. According to the four-way valve, the valveelement has the first position, and the second position and the third position, so that the diversification requirement of an air conditioner for a flow path switching function of the four-way valve can be met favorably.
Owner:GUANGDONG MEIZHI PRECISION MFG

LED bulb

The invention provides an LED bulb which comprises a photovoltaic conversion module and an optical heat dissipation module, wherein the photovoltaic conversion module is connected with the optical heat dissipation module through a locking ring. The photovoltaic conversion module comprises a barrel-shaped shell which contains an electronic driver, a standard lamp base is installed on the lower end face of the barrel-shaped shell, a planar light-emitting substrate is installed on the upper end face of the barrel-shaped shell, and one mechanical interface is arranged in the peripheral surface of the end, where the planar light-emitting substrate is installed, of the barrel-shaped shell. The optical heat dissipation module comprises an optical input transparent bubble cap cover and an optical output bubble cap, another mechanical interface is correspondingly arranged in the outer side of the transparent bubble cap cover and is connected with the photovoltaic conversion module through the locking ring, the optical input surface of the lower end of the transparent bubble cap cover is matched with the upper end face of the planar light-emitting substrate in external shape, and transparent thermally conductive adhesives are injected into the space between the lower end face of the transparent bubble cap cover and the upper end face of the planar light-emitting substrate. Effective heat dissipation and improvement on light distribution can be achieved through the LED bulb.
Owner:SHANGHAI XINJIE LIGHTING TECH
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