775 results about "Hybrid device" patented technology

Devices are provided with an internal dimension that can be reduced and increased in vivo. In one example, an interatrial shunt for placement at an atrial septum of a patient's heart includes a body. The body includes first and second regions coupled in fluid communication by a neck region. The body includes a shape-memory material. The body defines a passageway through the neck region for blood to flow between a first atrium and a second atrium. The first and second regions are superelastic at body temperature, and the neck region is malleable at body temperature. A flow area of the passageway through the neck region may be adjusted in vivo.

The invention relates to the technical field of packaging film production, and discloses a production process of a three-layer co-extrusion FFS (fringe field switching) heavy coating film, which comprises the following steps: S1, selecting proper raw materials including an outer layer material, an inner layer material and a middle layer material; s2, drying the selected raw materials respectively to ensure that the moisture content is lower than 0.1%; s3, uniformly mixing different materials and additives through premixing equipment; s4, feeding the three materials into co-extrusion equipment, simultaneously extruding melt materials of different layers through a co-extrusion machine, and forming a multi-layer film structure through a die head; and S5, controlling the temperature and the flow speed at the die head to ensure the fluidity and the pressure distribution uniformity of the material melt of each layer. Through a dynamic stretching device, a pressure feedback control system, an optimized die head design and an intelligent control system, uniform film bubble expansion, accurate film thickness control and improvement of film quality stability are realized, the production efficiency and automation are improved, and the consistency and overall performance of film quality are remarkably improved.

The invention relates to the technical field of feed processing equipment, and provides feed premixing equipment and a mixing method.The equipment comprises a mixing tank, a mechanical stirring assembly arranged in the mixing tank, an airflow pulse assembly arranged on the wall of the mixing tank and an ultrasonic vibration assembly coupled to the mixing tank; the equipment further comprises a mixing strategy optimization system and a set of data acquisition system; the data acquisition system is used for acquiring the torque, image, temperature, humidity and uniformity information of the material in real time and sending the information to the mixing strategy optimization system; the mixing strategy optimization system analyzes the material state in real time according to the collected data, and dynamically matches and optimizes the combined mode and process parameters of mechanical stirring, airflow pulse and ultrasonic vibration. According to the technical scheme, the technical problems that in the prior art, due to the fact that a single mechanical stirring and open-loop control mode is adopted, the mixing uniformity is low, heat-sensitive active ingredients are prone to damage, and the product quality consistency is poor are solved.

Devices are provided with an internal dimension that can be reduced and increased in vivo. In one example, an interatrial shunt for placement at an atrial septum of a patient's heart includes a body. The body includes first and second regions coupled in fluid communication by a neck region. The body includes a shape-memory material. The body defines a passageway through the neck region for blood to flow between a first atrium and a second atrium. The first and second regions are superelastic at body temperature, and the neck region is malleable at body temperature. A flow area of the passageway through the neck region may be adjusted in vivo.

The invention provides a hybrid power device and an aircraft, and relates to the field of aircraft power systems. The hybrid power device comprises a power supply system and a control system. The power supply system comprises a solid oxide fuel cell module, a storage battery module and a super capacitor module. The solid oxide fuel cell module comprises an integrated plate type metal support solid oxide fuel cell or electric pile and has the advantages that the fuel gas sealing performance is good, the number and the weight of structural parts such as metal connecting bodies, end plates and sealing materials are reduced, the light weight can be realized, and the power-to-weight ratio is favorably improved. The control system comprises an operation control module and an energy management module; the energy management module is connected with the power input end of the aircraft to obtain the power requirement of the aircraft and calculates the output power of the solid oxide fuel cell module, the storage battery module and the super-capacitor module according to the requirement, the weight of a power system is reduced, the flight endurance time is prolonged, and the flight safety is improved. And the output performance and the service life of the hybrid power system are greatly improved.

The invention belongs to the technical field of power electronics, and relates to a hybrid device common bridge arm three-level split output inverter modulation method and system, and the method comprises the steps: obtaining a mapping phase angle, a modulation degree and a region number according to a reference voltage vector generated by a three-phase original modulation wave; mapping the phase angle, the modulation degree and the switching period according to the size of the modulation degree to obtain two kinds of vector action time; generating two modulation waves according to the area number and the action time of the two vectors; generating a first pulse driving signal according to the area number, the first modulation wave and the forward and reverse carrier waves; generating a final carrier according to the area number and the forward and reverse carriers, and generating a second pulse driving signal according to the second modulated wave, the forward carrier, the forward carrier of the previous period and the final carrier; and selecting a driving signal from the two pulse driving signals according to the area number. The modulation degree can be maximized, driving pulses are respectively generated in different modulation degree ranges, the output current quality is high, and the total harmonic distortion rate is low.

The invention relates to the technical field of mixing equipment, and discloses mixing equipment for graphite material production and processing, which comprises a supporting arm, a collecting disc is fixedly mounted at the bottom end of the supporting arm, a first motor is fixedly mounted at the top end of the supporting arm, and an outer cylinder assembly is movably mounted at the top end of the supporting arm. According to the mixing equipment for graphite material production and processing, the inner cylinder assembly is arranged in the outer cylinder assembly, and the filter holes are formed in the inner cylinder assembly, so that raw materials in the outer cylinder assembly, which are brought up by rotation of the multifunctional assembly, are crushed, spread and filtered under the action of rotation; the filtered qualified raw material powder can enter the inner cylinder assembly to be fully mixed with other raw materials in the inner cylinder assembly, so that the quality of subsequent graphite materials is guaranteed, additional pretreatment of the graphite materials is not needed, the mixing efficiency is greatly improved, the input cost of equipment is reduced, and the production cost is reduced. And the applicability of the equipment is embodied.

The invention discloses a multi-tube parallel power device phase shift type current sharing and crosstalk suppression drive circuit which is composed of a crosstalk suppression unit, a current balancing unit, a control response unit and a function switching unit. Wherein the crosstalk suppression unit generates a control signal for suppressing the crosstalk voltage of the parallel power device and shields the interference of the current balancing unit; the current balancing unit generates a control signal for balancing the dynamic current of the parallel power device and shields the interference of the crosstalk suppression unit; the control response unit is used for realizing crosstalk active clamping or current active equalization; and the mode switching unit realizes automatic switching of a crosstalk suppression function or a current equalization function according to configuration. Parallel device grid driving signal feedback is introduced, crosstalk voltage active clamping and dynamic current active balancing are achieved through a logic circuit, and the parallel expansibility is high; an exclusive-OR gate is adopted to accurately identify synchronous or asynchronous information of driving signals of the parallel devices, and various different gate sequential modes in parallel application of the hybrid devices can be compatible.

The invention provides an optimization method and device of lithium battery slurry mixing equipment based on fluid mechanics simulation, computer equipment and a storage medium. The optimization method of the lithium battery slurry mixing equipment based on fluid mechanics simulation comprises the following steps: establishing a plurality of geometric models of the lithium battery slurry mixing equipment; performing model simplification processing on each geometric model, and extracting a fluid region needing to be calculated; dividing finite element grids for each geometric model, and encrypting a local area of a stirring paddle of each geometric model to obtain a grid file of each geometric model; determining a basic control equation of a calculation flow field for lithium battery slurry mixing, and performing volume integration processing on the basic control equation; obtaining material attributes corresponding to the lithium battery slurry added into the geometric model, and determining a medium flow model according to a Reynolds coefficient calculation equation; according to the optimization method, a large amount of research and development time and research and development cost can be saved, and meanwhile the test effect can be improved.

The invention belongs to the technical field of mixing equipment, and particularly relates to a non-intrusive homogenizer operation process abnormity monitoring method and system, and the method comprises the steps: calculating the mechanical angular acceleration according to the real-time rotating speed of a motor shaft end; on the basis of a pre-constructed inverse dynamic model, according to the motor orthogonal axis current, the motor shaft end real-time rotating speed and the mechanical angular acceleration, a rheological resistance characteristic index is calculated; processing the rheological resistance characteristic index by using a singular spectrum analysis algorithm, and extracting a trend line of the rheological resistance characteristic index through construction of a trajectory matrix, singular value decomposition and diagonal averaging operation; the information entropy of the first-order difference sequence of the trend line is calculated to serve as the mixing stability entropy, and the mixing end point of the operation process of the homogenizer is judged according to the convergence condition of the mixing stability entropy relative to the reference entropy, so that anomaly monitoring of the operation process of the non-intrusive homogenizer is achieved. According to the invention, abnormity monitoring and end point determination of the mixing process of the homogenizer are realized.

The utility model relates to the field of energy recovery, and discloses a mixing device of biomass fuel for sintering, which comprises a bottom plate, both ends of the surface of the bottom plate are fixedly connected with support frames a, the surface of the rear end of the bottom plate is provided with a shaking component, and the inner walls of one ends, far away from the bottom plate, of the two groups of support frames a are slidably connected with guide rods; a mixing tank is fixedly connected between the two groups of guide rods, a mixing mechanism is arranged on the inner wall of the mixing tank, the mixing mechanism comprises a half gear ring, three groups of gears are rotatably connected to the top end of the outer wall of a connecting disc, and a plurality of groups of stirring rods are fixedly connected to the outer wall of a rotating shaft. According to the biomass fuel mixing device, the mixing mechanism is arranged, so that the stirring rod can alternately rotate clockwise and anticlockwise, fuel is fully stirred and scattered, it is ensured that different types of biomass fuel can be evenly mixed, the fuel quality is improved through the efficient mixing mode, and a good foundation is provided for the subsequent combustion process.

The production line comprises mixing equipment, granulation equipment, drying equipment and screening equipment which are connected in sequence, the mixing equipment comprises a barrel, the barrel is provided with a discharging port and a plurality of feeding ports, a stirring device is arranged in the barrel, and the screening equipment comprises a base, a driving device, a screening device and a drawing device. The screening device is mounted on the base and is driven by the driving device to vibrate, the screening device comprises a box body and a plurality of screens which are mounted in the box body and are distributed up and down and have different pore diameters, an inlet and an air outlet are formed in the top of the box body, a slag discharging opening is formed in the bottom of the box body, and discharging openings corresponding to the corresponding screens are formed in the side wall of the box body; a filtering device is arranged at the air outlet; and the drawing device is respectively connected with the air outlet of the box body and the air inlet of the barrel body. According to the production line for manufacturing the pottery particles from the fly ash, screening separation and cooling of the pottery particles from the fly ash are carried out at the same time, meanwhile, the material mixing uniformity can be improved, and the product quality is improved.

The invention discloses a heterogeneous device hybrid ANPC converter junction temperature equalization method. The method comprises the following steps: S1, optimizing junction temperatures among ANPC devices; s2, if the maximum junction temperature appears in the hybrid device, entering S3; s3, optimizing the internal junction temperature of the hybrid device; the PWM rotation strategy of the ANPC converter and the hybrid device switch time sequence switching strategy are combined, the junction temperature between devices is relatively balanced by adjusting the switch loss distribution of the converter, the power output capacity of the converter is improved, and it is guaranteed that the converter can operate safely and reliably under different working conditions.

The invention provides an intelligent power module and a power electronic device, which are used for avoiding the problems of reliability and complexity of the existing intelligent power module through an IPM (Intelligent Power Module) which takes a hybrid device consisting of a normally open MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) and a low-voltage silicon MOSFET as a core power unit. The intelligent power module comprises at least one power unit, and the power unit comprises a normally open MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) and a low-voltage silicon MOSFET; the drain electrode of the low-voltage silicon MOSFET is electrically connected with the source electrode of the normally open type MOSFET; and the source electrode of the low-voltage silicon MOSFET is electrically connected with the grid electrode of the normally open MOSFET.

The invention relates to the technical field of power electronics, and discloses a hybrid device driving circuit, system and control method.The hybrid device driving circuit comprises a DSP module, an FPGA module, a hybrid device driving module and a mode switching comparison module, and the mode switching comparison module obtains a real-time voltage signal on a load; comparing the real-time voltage signal with a preset reference voltage of each modulation mode, and outputting a mode switching signal; the FPGA module determines a target modulation mode of a PWM signal output by the DSP module based on the mode switching signal, and processes the PWM signal into a target PWM signal corresponding to the target modulation mode; and the hybrid device driving module respectively controls the on and off of the IGBT and the SIC MOS tube based on the target PWM signal, and adjusts the real-time voltage signal under the action of the on and off of the IGBT and the SIC MOS tube so as to drive the load. The problems that an existing hybrid device driving circuit is low in precision and large in loss in control over a delay switch of a switching device are solved.

The invention discloses a raw material mixing dynamic adjusting system and method for preparing a chemical reagent, and relates to the technical field of chemical reagent production. Comprising a data acquisition module, a mixing monitoring module, a monitoring analysis module and a real-time adjustment module, wherein the data acquisition module is used for acquiring the content uniformity of a finished chemical reagent mixed by mixing equipment last time, and comparing the content uniformity with a preset standard threshold value; if yes, extracting the last working data of the mixing equipment as a mixing scheme, and extracting mixing space environment data in the mixing process of the mixing equipment as a comparison scheme; the technical key points are as follows: the previous mixing effect is analyzed during use, the previous mixing effect is judged, when the previous mixing effect meets the standard, the previous data are continuously used, and if the previous mixing effect does not meet the standard, the existing constant mixing parameter setting mode is adjusted and modified, so that the mixing effect can be known in advance, and the mixing efficiency is improved. Corresponding personnel can conveniently manage, and the use effect is good.

The utility model discloses raw material mixing equipment for HDPE corrugated pipe production, which comprises a mixing box, the outer surface of the bottom of the mixing box is fixedly connected with a supporting seat, the top of the mixing box is provided with a feed port, the bottom of the mixing box is provided with a discharge port, the mixing box is internally provided with a stirring mechanism, and the stirring mechanism is connected with the supporting seat. And the stirring mechanism comprises a stirring rod arranged in the mixing box. Through the stirring mechanism, the output end of the driving motor drives the incomplete outer gear to rotate through the belt pulley assembly, the transmission gear is driven to rotate by half a circle in the forward direction when the incomplete outer gear rotates by one circle, the incomplete inner gear is driven to rotate by one circle through the connecting frame, and the transmission gear is driven to rotate by half a circle in the reverse direction when the incomplete inner gear rotates by one circle. The incomplete outer gear and the incomplete inner gear are alternately meshed with the transmission gear, so that continuous forward and reverse rotation of the transmission gear is realized, the stirring rod is driven to continuously rotate forward and reverse, the materials are more fully mixed, and the efficiency is improved.

A hybrid apparatus for charging electric vehicles and mining cryptocurrency is provided. The apparatus may comprise an electric power input associated with a rated maximum power capacity, an electric vehicle charger, a cryptocurrency miner and a power coordinator. The electric vehicle charger may have at least one vehicle power outlet and a maximum charger power draw from the electric power input. The cryptocurrency miner may have multiple cryptocurrency mining computers and a maximum miner power draw from the electric power input. Each mining computer may have an adjustable intensity level. The power coordinator may be configured to determine mining power availability within the rated maximum power capacity after prioritizing power demand by the electric vehicle charger, and to direct the cryptocurrency miner to continue mining cryptocurrency by adjusting the intensity levels of the mining computers such that the cryptocurrency miner consumes not more than the mining power availability.

The invention provides a hybrid device for a laser device, and relates to the technical field of laser, the hybrid device comprises a signal end collimator, a pumping end collimator, a spectroscope, an isolator and a beam expanding unit, the pumping end collimator and the signal end collimator are arranged on one side of the spectroscope, and the beam expanding unit is arranged on the other side of the spectroscope. Pump light output by the pump end collimator is reflected to the signal end collimator through the spectroscope; the isolator and the beam expanding unit are arranged in the emitting direction of the signal light, the pump light is focused at the second lens and passes through the first lens to form an annular light spot, and the annular light spot is coupled to an inner cladding of the first optical fiber and is totally reflected at the joint of the inner cladding and an outer cladding of the first optical fiber. The annular light spot penetrates through the fiber core of the first optical fiber for multiple times and is absorbed by the metal rare earth element doped in the fiber core, the signal light transmitted by the fiber core is amplified, and the amplified signal light is transmitted out of the spectroscope. According to the invention, the stability and reliability of the laser can be improved.

The invention relates to the technical field of flux-cored wires, and discloses a high-rust-resistance flux-cored wire preparation method which comprises the following steps of S1, raw material pretreatment, S2, powder adding and forming, S3, surface modification and S4, finished product inspection. Before work is started, a worker prepares raw materials including high-carbon ferrochrome, tungsten carbide, boron carbide, rare-earth metal oxide and ferromolybdenum powder, then grinding equipment is used for grinding the raw materials, then the ground powder is dried for 2-3 hours through equipment at the temperature of 100-150 DEG C, the dryness of the raw materials is guaranteed, and the raw materials are evenly mixed. The method comprises the following steps: firstly, preparing a flux-cored wire, then uniformly stirring by utilizing three-dimensional mixing equipment, and then mixing and proportioning according to different proportions according to a corrosion-resistant flux-cored wire, an acid-base-resistant flux-cored wire and a high-hardness high-temperature-resistant flux-cored wire, so that the welding wires with corresponding properties can be conveniently used according to different environments, and the maximization of the functionality of the welding wire is improved.

The invention discloses a lead bonding method for a vacuum solid hybrid device similar to 3D laminated packaging, and the method comprises the following steps: S1, dividing all leads with the same height difference between a chip bonding pad and a pin bonding pad into the same group of leads according to the definition of electrical connection; s2, the high point position of each group of lead bonding is defined as a chip bonding pad and is a first lead bonding point, and the low point position of each group of lead bonding is defined as a pin bonding pad and is a second lead bonding point; and S3, the bonding mode of each lead is as follows: after a convex section is arranged from the first welding point, a first folding point (K1) is formed, then the convex section is connected with the concave section and is connected with a reverse section, the reverse section is connected with a second folding point (K2), and a platform section opposite to the first welding point is arranged behind the second folding point (K2). According to the method, the bonding efficiency can be improved, the reliability of the bonding wire is ensured, and the performance stability of the device is improved.

The utility model relates to the technical field of high polymer materials, in particular to mixing equipment based on high polymer materials. The mixing equipment comprises a mixing barrel, a controller, an inner barrel, heating pipes and a stirring frame, the inner side of the mixing barrel is connected with the inner barrel, the heating pipes used for heating materials are evenly installed between the inner barrel and the inner wall of the mixing barrel, the controller is arranged on the outer wall of the mixing barrel, the heating pipes are electrically connected with the controller, and the stirring frame is connected with the controller. A stirring frame is rotatably connected to the middle in the mixing barrel, the mixing equipment further comprises connecting frames and shifting plates, the connecting frames are symmetrically connected to the upper side of the stirring frame, and the shifting plates are rotatably connected to the connecting frames. The stirring plate is arranged on the stirring frame, the stirring plate can rotate while rotating along with the stirring frame through cooperation of the small gear and the large gear, the materials are stirred, it is guaranteed that the materials are heated evenly, and the mixing quality is improved.

The invention discloses a Si / SiC hybrid device switch control method based on load current range interval division. The method comprises the steps that the maximum bearable pulse current of a SiC MOSFET and the load current range of a hybrid device are acquired; dividing the load current range of the hybrid device into intervals E, F, G and H; wherein 0 < = E < the first current value; the first current value < = F < = the second current value; g is larger than the second current value and smaller than the maximum bearable pulse current of the SiC MOSFET; the maximum bearable pulse current H of the SiC MOSFET is greater than or equal to the maximum value of the load current range and less than the maximum value of the load current range; and when the load current of the hybrid device is in the intervals E, F, G and H, making the hybrid device work in a preset mode. The invention also discloses a Si / SiC hybrid device switch control system based on load current range interval division.

The utility model belongs to the technical field of gas mixing, and particularly relates to gas mixing equipment which comprises a shell, and a cleaning and mixing mechanism is arranged in the shell. Through the arrangement of the cleaning and mixing mechanism, the effects of filtering gas, conveniently cleaning impurities on the filter plate and increasing the mixing area can be achieved, in the using process, the situation that the mixed gas is not pure due to the fact that the gas cannot be filtered can be avoided, the mixing effect of the equipment is guaranteed, and the service life of the equipment is prolonged. The situation that the filter plate cannot be normally used or the filtering efficiency is low due to the fact that impurities on the filter plate are accumulated and blocked due to the fact that the impurities on the filter plate are not cleaned for a long time is also avoided, the practicability of the equipment is ensured, and the situation that the mixing area of gas cannot be increased and the filtering efficiency is reduced is also avoided. And therefore, the mixing area of the equipment is ensured.

The utility model provides a screw mixing device of an extruder. The extruder screw mixing device comprises a mixing barrel, screw propelling equipment, a feeding hopper, a mounting block, a mounting plate, a fixing block and a stirring mechanism, the screw propelling equipment is arranged on the mixing barrel, the feeding hopper is fixedly mounted on the mixing barrel and communicated with the mixing barrel, the mounting block is fixedly mounted on the feeding hopper, and the fixing block is fixedly mounted on the mounting plate. The mounting plate is fixedly mounted on the mounting block, the fixing block is arranged on the top of the mounting plate, and the stirring mechanism is arranged on the fixing block; the stirring mechanism comprises an air cylinder, a stirring rod, a servo motor, a plurality of stirring blades and a screw rod. The extruder screw mixing device provided by the utility model has the advantages that the operation is simple, and the problems that the time is wasted and the work progress is delayed as the height can be adjusted by manual operation every time when the height needs to be adjusted can be solved.

The invention discloses a drive control method and system for a Si / SiC hybrid device, and relates to the technical field of semiconductors, and the method comprises the steps: obtaining the conduction current of the Si / SiC hybrid device; a current interval where the conduction current is located is determined, one current interval corresponds to one driving mode, and the driving modes include only driving the Si IGBT device, only driving the SiC MOSFET device and driving the Si IGBT device or the SiC MOSFET device for different times in one switching period; and driving the Si / SiC hybrid device according to the driving mode of the current interval where the conduction current is located. According to the invention, the dynamic adjustment of the driving control mode is realized, the driving flexibility of the Si / SiC hybrid device is improved, the switching efficiency of the Si / SiC hybrid device switch is also improved, the loss of the Si / SiC hybrid device is reduced, and the compromise optimization operation of the thermal reliability and the electromagnetic compatibility is realized.

The utility model discloses ultrasonic mixing equipment capable of uniformly mixing, which belongs to the technical field of ultrasonic mixing equipment and is characterized in that a feeding component is arranged on the right side of an equipment main body, and a vibration mixing mechanism for mixing samples to be tested is mounted at the rear end of the equipment main body; the vibration mixing mechanism comprises a support frame, a double-head synchronous cylinder, an ultrasonic vibration rod, a pressing rod and a through hole. By means of the mode, the function of conveniently feeding a large number of to-be-tested samples is achieved, the complexity of manual feeding is omitted, all the to-be-tested samples are continuously mixed through the ultrasonic vibration rod, and the phenomenon that when the multiple to-be-tested samples are mixed together, the to-be-tested samples are evenly mixed is avoided. And the phenomenon of omission or incapability of uniformly mixing is generated.

A premixing device includes: a blade, arranged midway of a gas flow path through which air flows, and provided with a fuel gas outlet in a region near one end downstream in an air flow direction; a pair of divided flow paths, configured by dividing a portion of the gas flow path by the blade; and a baffle, located upstream of the fuel gas outlet in the air flow direction on an inner peripheral surface of each divided flow path, and being in the shape of a protruding piece or step part protruding inward of each divided flow path. The baffle is provided in at least a portion of an inner region of each divided flow path, and makes it possible to increase a flow velocity of air flowing through an outer region to be higher than a flow velocity of air passing through the inner region.