102results about How to "Increase output power" patented technology

The present disclosure provides an inter-band cascade laser, comprising: a bottom power supply module and a top power supply module; and an active layer arranged between the bottom power supply module and the top power supply module, the active layer being adapted to provide gain to generate laser light under the power supply of the bottom power supply module and the top power supply module, the active layer comprising a plurality of gain core layers and a plurality of optical confinement layers arranged alternately between two optical confinement layers; wherein the refractive index of the optical confinement layer is greater than the refractive index of the gain core layer, so that the laser light propagates in the active layer and generates a plurality of optical modes, and by adjusting the lasing wavelength of the gain core layer and / or the thickness of the optical confinement layer, the confinement factor of the fundamental mode in the plurality of optical modes is higher than the confinement factor of each high-order mode.

This utility model discloses a tunnel fire-fighting foam liquid filling system, belonging to the field of fire-fighting equipment technology. It includes several fire boxes, a foam liquid filling vehicle, and a monitoring center. Both the fire boxes and the foam liquid filling vehicle are networked with the monitoring center to achieve data exchange. Specifically, each fire box contains a foam liquid storage tank and a first control device. The foam liquid storage tank is equipped with a first liquid level sensor, a solenoid valve, a variable frequency delivery pump, and a first flow meter. A flow regulating valve and a second flow meter are installed on the pressure water pipe. All components are connected to the first control device. The foam liquid filling vehicle contains a foam liquid storage tank, a variable frequency high-pressure pump, a battery, a third flow meter, and a second control device. Both the first and second control devices are connected to the monitoring center. This utility model provides a highly efficient, intelligent, and easy-to-maintain tunnel fire-fighting foam liquid filling system.

The utility model discloses a kind of electrically conductive structure, photovoltaic module and photovoltaic power generation system, electrically conductive structure includes electrically conductive matrix, insulating layer and first adhesive layer. Insulating layer is located at the side of electrically conductive matrix. First adhesive layer is connected at the side of insulating layer away from electrically conductive matrix. According to the electrically conductive structure of the utility model, by integrating electrically conductive matrix, insulating layer and first adhesive layer together, compared with the connection mode of traditional electrically conductive structure and electrical component (for example battery piece), the use of adhesive tape is reduced, thereby reducing the area of optical obstruction, it is favorable to promote the output power of electrical component connected with electrically conductive structure, while the mutual displacement of electrically conductive matrix, insulating layer and first adhesive layer in the process of assembly and use can be avoided, it is favorable to promote the structural stability and reliability of electrically conductive structure, promote the use safety of electrically conductive structure. In addition, the laying process of electrically conductive structure is simplified, and the mounting yield of electrically conductive structure is improved.

The utility model discloses a high-efficiency photovoltaic module which comprises a first battery string, a second battery string, a third battery string, a fourth battery string, a fifth battery string, a sixth battery string, a seventh battery string, an eighth battery string, a ninth battery string, a tenth battery string, an eleventh battery string and a twelfth battery string which are formed by welding a plurality of battery pieces together through a plurality of welding strips. A first bus bar is welded to one side of the first battery string, one side of the third battery string, one side of the fifth battery string, one side of the seventh battery string, one side of the ninth battery string and one side of the eleventh battery string, a second bus bar is welded between the first battery string and the seventh battery string, a second bus bar is welded between the sixth battery string and the seventh battery string, and a third bus bar is welded between the second battery string and the eighth battery string. And a bus bar 3 is welded between the battery string 4 and the battery string 10, and the bus bar is overlapped with the battery pieces, so that the area occupied by the bus bar is reduced, and the conversion efficiency is improved.

The invention discloses a high-capacity sea wind converter single-tube fault-tolerant operation method, a storage medium and equipment, a healthy half-bridge arm in a fault bridge arm and a half-bridge arm at a complementary position of the healthy half-bridge arm are used for reconstruction, a split inductance type composite clamping bridge arm is formed, and single-tube fault-tolerant operation is realized. According to the optimized fault-tolerant operation mode, the power loss of a switch tube in the converter is shared by a plurality of radiators in a fault phase, so that the single-tube fault-tolerant operation power limit of the converter can be improved on the basis of reducing the operation temperature of the switch tube and keeping the temperature balance of the radiators, and the power generation loss is further reduced.

The invention provides a broadband gain positive slope amplitude-phase control multifunctional chip for a T / R assembly, which relates to the technical field of radio frequency integrated circuits and comprises a receiving channel, a transmitting channel, an equalization circuit, a numerical control attenuator, a numerical control phase shifter, a transmitting-receiving change-over switch module and a parallel control module. The parallel control module is used for outputting parallel control signals to the numerical control attenuator, the numerical control phase shifter and the transceiving change-over switch module; the equalization circuit is respectively connected with the receiving channel and the transmitting channel through the transmitting-receiving change-over switch module, so that a signal path of the receiving channel and a signal path of the transmitting channel multiplex the equalization circuit, the numerical control attenuator and the numerical control phase shifter; and the equalization circuit is of an on-chip integrated structure and is used for adjusting the gain of the receiving channel and the gain of the transmitting channel to present a positive slope characteristic relative to the frequency in a wide frequency band so as to compensate the frequency attenuation of an external device.

The invention discloses a slice laser based on a topological structure dodging layer. The slice laser comprises a pumping system, a pumping light injection module and a composite dodging waveguide structure, pumping light generated by the pumping system enters the composite dodging waveguide structure through the pumping light injection module; the front end face of the composite dodging waveguide structure is plated with a pumping light wavelength high-reflective film and a laser wavelength antireflection film, and the rear end face of the composite dodging waveguide structure is plated with a pumping source wavelength and laser wavelength high-reflective film; the composite dodging waveguide structure comprises a slice gain medium, a topological structure dodging layer and a middle refractive index layer which are sequentially arranged from the front end face to the rear end face. The topological structure dodging layer is composed of a low-refractive-index material layer and a high-refractive-index material topological graph arranged on the low-refractive-index material layer; and the pump light injection module is fixed above the high refractive index material of the middle refractive index layer or the topological structure dodging layer. Pumping uniformity is improved fundamentally, high-order mode suppression and efficient fundamental mode extraction are facilitated, and output power and light beam quality are improved at the same time.

The application relates to the technical field of offshore wind power DC transmission, and discloses an offshore wind power bidirectional asymmetric feeding type DC transmission system and a control method thereof, which comprises a first conversion module, a second conversion module, a third conversion module, a switch module and an onshore conversion station, wherein the internal current flow path of the switch module is controlled, the third conversion module is used to establish an offshore collection voltage during black start, and after the black start is completed, the first conversion module and the second conversion module are connected to the system, so that the problem that an offshore wind farm cannot be black started is solved.

The utility model discloses a photovoltaic assembly, comprising four battery arrays, the four battery arrays are arranged in a manner of being adjacent in pairs along the transverse direction and the longitudinal direction, each battery array is formed by connecting three battery strings with the same length in series, each battery string is formed by connecting a plurality of battery string division sheets in series, bypass diodes are arranged beside the four battery arrays, and the bypass diodes are connected with the battery strings. And the four battery arrays are sequentially connected in series. According to the photovoltaic module, the output power of the photovoltaic module can be improved, and the photovoltaic module has an excellent heat spot resistant effect by reasonably setting the connection relation between the bypass diodes and the battery array.

The utility model discloses a solar full-spectrum-driven zero-carbon air conditioning system which comprises a solar photovoltaic system, a dehumidifier and a reverse-flow dew-point evaporative cooler. The solar photovoltaic system comprises a solar photovoltaic panel, a storage battery and a water tank, and a water cooling plate is arranged on the solar photovoltaic panel; the storage battery is used for storing electric energy generated by the solar photovoltaic panel and supplying power to the fan, and the water cooling plate is used for collecting heat generated by the solar photovoltaic panel and storing heated water in the water tank; the dehumidifier adopts an MOFs material as a desiccant and comprises two dehumidification modules, and the two dehumidification modules adopt a dehumidification-desorption alternate cycle working mode and alternately execute dehumidification operation and regeneration operation; the reverse-flow dew-point evaporative cooler comprises a dry channel and a wet channel, dry air dehumidified by the dehumidifier is divided into two parts at the tail end of the dry channel after passing through the dry channel, one part serves as working air to enter the wet channel to promote evaporation of a water film on the surface of the wet channel, and the other part serves as product air to be exhausted.

This application provides a photovoltaic component, including: a color steel tile; a photovoltaic module, including a laminate and a frame, the frame being fixed to the back surface of the laminate; a clamp, including a clamping part for clamping the color steel tile along a first direction; and a fixing member along a second direction, one end of the fixing member being connected to the clamping part and the other end being connected to the frame, to fix the photovoltaic module to the color steel tile; the first direction and the second direction are perpendicular to each other. The photovoltaic component of this application can improve the photoelectric conversion efficiency of the photovoltaic module, thereby increasing the output power of the photovoltaic component. The fixing member connecting the clamp and the photovoltaic module along the second direction allows the photovoltaic module to be adapted to color steel tiles of different widths, providing high flexibility and increasing the installed capacity of photovoltaic modules per unit area, thus contributing to increasing the power generation capacity of the photovoltaic component.

The utility model relates to the technical field of middle motors, and discloses a middle motor with a dual-drive structure, which comprises a case, a main motor and an auxiliary motor are arranged in the case, the output end of the main motor is fixedly connected with a first gear, and the output end of the auxiliary motor is connected with a clutch through a flying disc. And the interior of the case is rotationally connected with a second gear through a rotating shaft. According to the middle motor with the dual-drive structure, the auxiliary motor is additionally arranged on one side of the main motor, the first gear is arranged at the output end of the main motor, the output end of the auxiliary motor is connected with the rotating shaft of the second gear through the flying disc and the clutch, and the first gear and the second gear are in transmission connection through the steering gear; the auxiliary motor can be additionally started under the working conditions of climbing, loading and the like and is matched with the main motor to achieve dual drive, the overall output power is improved, the vehicle is driven to smoothly advance under the complex working conditions, the problems of overload, efficiency reduction and the like under the complex working conditions are solved, and the driving experience of a driver is improved.

The application discloses a carbon dioxide capturing method, a capturing system and application thereof. The method comprises the following steps: mixing potassium carbonate solution and carbon dioxide gas to obtain a suspension, filtering the suspension to obtain a filtrate; after the battery device is powered on, the filtrate is introduced into a cathode area of the battery device, and carbon dioxide gas is introduced into the cathode area; after the solution in the cathode area is heated and the carbon dioxide is separated, the solution is introduced into an anode area of the battery device. The carbon dioxide capturing method provided by the application can generate electric energy while capturing carbon dioxide by using a battery device, carbon dioxide gas is introduced into the cathode area of the battery device to capture the carbon dioxide, after power on, K2CO3 is used as a reaction raw material of the anode area, the output power of the battery and the conversion rate of CO2 are high, the maximum power density can reach 50 W / m 2 , and the CO2 conversion rate can reach more than 24%.

The application discloses a neural network prediction method for optimal working angle of a marine ship photovoltaic panel. The method considers the influence of sea wave fluctuation and solar position change on the ship photovoltaic power generation system, collects the operation data of the ship photovoltaic panel under different conditions, and establishes a neural network model to learn the output power curve of the ship photovoltaic panel on the basis, and then the trained ship photovoltaic panel power fluctuation neural network model is used to predict the output power of the photovoltaic panel under the current condition. According to the prediction result, the characteristics of the ship photovoltaic panel power fluctuation curve are analyzed to determine the optimal inclination angle of the current ship photovoltaic panel. The application can quickly obtain the optimal inclination angle of the photovoltaic panel to track the sun during the ship sailing process, effectively suppress the power fluctuation of the photovoltaic panel during the ship sailing at sea, reduce the power loss, and improve the output power.

This invention relates to the field of wearable electronic device technology, specifically disclosing a partitioned, double-sided, skin-contact, sweat-wicking hybrid energy harvesting armband and its manufacturing method. The armband includes a flexible strip substrate, an organic photovoltaic (PV) power generation unit, a polymer thermoelectric power generation unit, a skin-contact thermal interface layer, a cold-end heat dissipation structure, and a circuit integration module. The PV power generation unit and the polymer thermoelectric power generation unit are partitioned and mounted on the same flexible strip substrate. Microstructured channels are pre-set within the skin-contact thermal interface layer to guide sweat and reduce contact thermal resistance. A process route is adopted where the organic PV is first fabricated and encapsulated with high barrier properties, followed by the printing of the polymer thermoelectric power generation unit. A porous fabric or fin array heat dissipation structure is integrated at the cold end of the polymer thermoelectric power generation unit. This invention can improve photoelectric conversion efficiency, stabilize operating temperature difference, reduce contact thermal resistance, increase manufacturing yield, enhance output power, and improve wearing comfort.

This invention belongs to the field of photovoltaic panel cleaning technology, specifically relating to an intelligent cleaning device and method suitable for large-angle flexible photovoltaic roofs. The intelligent cleaning device for large-angle flexible photovoltaic roofs includes an anchoring and traction system and a cleaning robot body. The anchoring and traction system includes a winch assembly installed on the roof, a composite cable connected to the winch assembly, and a central control unit. The composite cable integrates a traction rope, a power supply cable, and a water supply hose. The cleaning robot body is connected to the winch assembly via the composite cable and includes a walking and adsorption mechanism, an intelligent adsorption pressure control system, and a cleaning mechanism. The walking and adsorption mechanism is a tracked vacuum suction cup composite walking mechanism. The intelligent cleaning device for large-angle flexible photovoltaic roofs of this application enables safe, stable, and efficient fully automated cleaning operations on the surface of large-angle, flexible photovoltaic panels using the cleaning robot body.

The application discloses a photovoltaic system and a capacity-ratio control method. The photovoltaic system comprises a DCAC converter, N DCDC converters and a controller, wherein N is an integer greater than or equal to 2; an input end of each DCDC converter is used for connecting a corresponding photovoltaic string, and output ends of the N DCDC converters are all connected to an input end of the DCAC converter; the controller is used for controlling M DCDC converters in the N DCDC converters to work in a conduction state when it is necessary to reduce a capacity ratio of the photovoltaic system, and stopping energy of corresponding photovoltaic strings from entering the DCAC converter; and M is an integer greater than or equal to 1 and smaller than N. After the capacity ratio of the photovoltaic system is reduced, the output power of the DCDC converter will be improved, so that the power generation capacity of the photovoltaic system is improved, and the power generation efficiency is improved.

The application discloses a battery and a manufacturing method thereof, and the battery comprises a positive current collector layer, which is a composite structure with dense normal layers and porous functional layers alternately distributed formed on an aluminum foil substrate through electric field assisted selective etching, a positive electrode sheet coated with positive active material aluminum powder and subjected to formation treatment, and a top cover assembly and a bottom cover assembly connected with the positive and negative electrodes through full-tab cross-section laser welding and full-tab end face laser welding respectively; the manufacturing method comprises the steps of preparing a composite positive current collector layer, coating active material, assembling a battery cell, laser welding and packaging, etc. The specific surface area and ion transmission efficiency are greatly improved through the composite current collector layer structure, the internal resistance and temperature rise are reduced by combining the optimized full-tab welding process, so that the rate performance, cycle stability and thermal safety of the battery are significantly improved, and the battery is suitable for the manufacturing of high-power long-life batteries such as electric vehicles and energy storage systems.

The application discloses a current mode staggered control converter and a control chip, wherein the converter comprises a VIN input power supply with a voltage of 20V-100V, forward transformers T1 and T2, two output paths formed by the transformers and subsequent devices, a capacitor C0 as a VCC pin filter capacitor, a resistor R3 as an RT pin resistor connected to the ground and used for controlling the frequency of an oscillator, capacitors C1 and C2 as COMP1 and COMP2 pin capacitors connected to the ground and used for adjusting loop stability, capacitors C3 and C4 as SS1 and SS2 pin capacitors connected to the ground and used for realizing soft start of the system, N3 and N4 as natural synchronous rectifier devices in the forward converter, the first output channel and the second output channel adopting the same structure, an auxiliary winding La providing power supply for an IC control chip VCC through a diode D1, and an output capacitor Cout1 as an output capacitor of the first channel. The whole system is driven and controlled by only one control chip, and the power density is improved, the volume of the scheme is reduced, the cost of the scheme is lowered, and the system performance is not sacrificed.

This invention discloses a slit-type staggered dual-grid waveguide slow-wave structure. Each single-period structure includes a metal shell, an upper metal grid, and a lower metal grid. The upper and lower metal grids are staggered in a half-period pattern, and a rectangular electron beam channel exists between them. A notch is provided at the lower edge of the upper metal grid and the upper edge of the lower metal grid, respectively. Each notch has the same shape and size, and the notches in either the upper or lower metal grid are symmetrically distributed. The invention reduces the loss and dispersion characteristics of the staggered dual-grid waveguide slow-wave structure by creating notches on the staggered metal grids, forming vacuum slits connected to the electron beam channel, thereby further improving the output power and bandwidth of the traveling wave tube.

The present application relates to a kind of heat pump steam system control method and device, controller.The heat pump steam system control method described in the present application includes the following steps: obtaining steam demand quantity increases adjustment instruction;Determine whether heat pump steam system is in flash mode or hot water mode;If it is flash mode, steam outlet is opened, hot water outlet is closed, electric heating element is closed, the output power of heat pump system is increased, the frequency of pressurizing pump is increased, the opening of water supply valve is increased, and the opening of steam outlet valve is increased;If the current steam production does not meet the set steam demand, and meet the first preset condition, then control system enters hot water mode, steam outlet is closed, hot water outlet is opened, and electric heating element is started.The heat pump steam system control method described in the present application has the advantages of high efficiency in steam generation and low energy consumption of the system.

The utility model relates to a split type stator structure, comprising a stator iron core which comprises two symmetrical stator iron core base bodies; a coil wound on the stator core; and each insulating frame is arranged between the corresponding coil and the corresponding stator iron core base body and covers the whole inner surface of the stator iron core base body. The stator iron core of the split type stator structure is arranged to be two symmetrical stator iron core base bodies so as to form a folding structure, the winding slot fullness rate can be improved, the output power and the torque of the motor are further improved, and independent winding can be carried out on the single stator iron core base body after the stator iron core base body is opened so as to improve the winding efficiency. And each insulating frame covers the whole inner surface of the stator iron core base body, so that electric leakage and coil abrasion can be effectively prevented.

The application provides an internal-pumping thin slice laser emitting coherent array laser, comprising a heat sink, a pump light source, a coupling module, an internal resonant cavity and a cut-angle external cavity, the internal resonant cavity, the cut-angle external cavity and a double-wavelength reflecting layer arranged outside a front end surface of the cut-angle external cavity form a resonant cavity, the internal resonant cavity comprises, from inside the cut-angle external cavity, a semi-reflective semi-transmissive layer, a micro-structure thin slice and a double-wavelength high-reflective layer arranged in sequence from the inside of the front end surface to a rear end surface, and the double-wavelength high-reflective layer and the rear end surface of the cut-angle external cavity are attached to the heat sink. The internal-pumping thin slice laser emitting coherent array laser has the advantages of high pumping efficiency, output power, beam quality and stability, and compact structure. The application further provides a preparation method of the internal-pumping thin slice laser emitting coherent array laser.

The application discloses an oral cavity cleaning device and a driving device for oral cavity cleaning. The oral cavity cleaning device comprises a brush handle assembly and a treatment head. The brush handle assembly comprises a holding shell and a driving device. The driving device comprises at least a stationary part and a rotating part. The stationary part comprises a housing element and a stator support accommodated in the housing element. The inner wall surface of the stator support is provided with a plurality of accommodation tooth grooves, and the extension direction of the accommodation tooth grooves is parallel to a first axis. The rotating part comprises a power output shaft and at least two rotor assemblies located in the stator support. The at least two rotor assemblies are sleeved on the power output shaft and are sequentially stacked along the first axis. From the cross section perpendicular to the first axis, there is a preset dislocation angle between adjacent two rotor assemblies. The technical scheme provided by the application can increase the power and the load resistance of the driving device without increasing the volume of the brush handle assembly, so as to improve the oral cavity cleaning effect.

This invention provides a butterfly-shaped symmetrical microcrystalline laser, relating to the field of laser technology. It includes a triangular frame, a cathode, an anode, and reflectors. A V-shaped resonant cavity is arranged within the triangular frame. Three reflectors are respectively positioned at the two openings and corners of the V-shaped resonant cavity. Two anodes are symmetrically arranged on the first and second sides of the triangular frame. The cathode is located between the two sides of the V-shaped resonant cavity and connects to the corner of the V-shaped resonant cavity. By replacing the traditional linear resonant cavity with a V-shaped resonant cavity, the same cavity length can be transformed into two elongated holes of different lengths, significantly reducing manufacturing difficulty and improving manufacturing accuracy. The distance between the cathode and anode of the laser using the V-shaped resonant cavity is significantly shortened, greatly reducing the voltage required for laser startup, lowering the high-voltage protection requirements of the laser, and improving the safety of laser operation.

The application relates to a virtual synchronous generator-based photovoltaic hybrid energy storage system power distribution and virtual inertia control method, which comprises the following steps: S1, determining the power distribution mode of the hybrid energy storage system; S2, determining the virtual inertia of the virtual synchronous generator and the correlation between the two energy storage states of charge; S3, determining the adaptive control strategy of the virtual inertia; and S4, determining the selection principle of the relevant parameters. The application introduces an adjustment coefficient related to the states of charge of the all-vanadium redox flow battery and the super capacitor, so that the virtual inertia is adjusted according to the inverter output frequency and the states of charge of the two energy storages, the stability of the system is analyzed through a root locus, and the selection principle of the key parameters such as the virtual inertia and the damping is determined. The application can effectively improve the stability of the voltage and frequency of the photovoltaic hybrid energy storage system, realize the reasonable distribution of the power between the hybrid energy storages, avoid the over-limit of the states of charge of the energy storages, and improve the charging and discharging performance and the service life of the energy storages.

The application provides a 1.7-micron-band single-frequency fiber laser based on a composite glass optical fiber, which comprises a long linear cavity, and the long linear cavity comprises, in sequence, a high-reflection Bragg grating (3), a composite glass optical fiber (4), a saturable absorber (5) and a low-reflection Bragg grating (6). 3+ The composite glass optical fiber is a multimode optical fiber, has a double-clad structure, and the core is Tb 3+ The inner cladding is Tm 3+ The outer cladding is undoped rare earth composite glass. The 1.7-micron-band single-frequency fiber laser is compact in structure, high in efficiency and narrow in line width, and can be applied to the fields of gas sensing, precision measurement, laser radar and the like.

The application discloses a kind of perovskite laminated solar cell and preparation method thereof, photovoltaic module and photovoltaic device, belong to solar cell technical field.The perovskite laminated solar cell from light-receiving front to light-receiving back successively includes substrate, bottom electrode, first hole transport layer, wide band gap perovskite layer, first electron transport layer, barrier layer, intermediate interconnection layer, narrow band gap perovskite layer, second electron transport layer, hole blocking layer, top electrode;The intermediate interconnection layer includes first sublayer, self-assembled monolayer and second sublayer, first sublayer faces first electron transport layer, second sublayer faces narrow band gap perovskite layer, and self-assembled monolayer is located between first sublayer and second sublayer.The application can inhibit interface scattering and reduce wide-angle reflection loss under oblique incidence, while maintaining excellent electrical transmission to promote carrier transfer and recombination, significantly improve the overall photovoltaic performance of device.

The utility model relates to the technical field of electronic atomization, in particular to atomization equipment which comprises an atomizer used for atomizing an aerosol matrix. The power supply assembly is used for supplying power to the atomizer; wherein the power supply assembly and the atomizer are electrically connected through an external power line. The output power of the atomization equipment can be greatly improved, and the continuous working time of the atomization equipment can be prolonged in a high-power state.

The application discloses a relativistic magnetron with an energy feedback structure and belongs to the microwave technical field.The relativistic magnetron is a full-cavity extraction structure and comprises an anode, a cathode, an energy extraction structure and a guide magnetic field coil; wherein the energy extraction structure is provided with a ring-shaped microwave reflection plate in an output circular waveguide part, part of energy is reflected back to a cathode-anode gap, the interaction between an electron cloud and a space electromagnetic wave is enhanced, and the output power of the relativistic magnetron is improved. The application effectively improves the output power of the relativistic magnetron while guaranteeing the compactness of the device; meanwhile, the energy feedback structure is simple and easy to process.