37results about How to "Meet different power demands" patented technology

The invention provides a wireless and wired charging switching device of an electromobile. The switching device comprises a power module and a charging module of the electromobile, wherein the power module and the charging module are connected. The power module comprises a power grid, a first control switch, a second control switch, a high-frequency power source, a battery charger and an energy transmitting coil system, wherein the first control switch and the second control switch are respectively connected with the power grid, the high-frequency power source is connected with the first control switch, the battery charger is connected with the second control switch, and the energy transmitting coil system is connected with the high-frequency power source. The charging module comprises a master control system connected with the second control switch, and an energy receiving system connected with an energy transmitting coil, wherein the energy receiving system is connected with a battery through a rectifying and voltage stabilizing system, and the master control system is connected with the battery through a power detection module; the battery charger is connected with the battery, and the control system sends signals to the first control switch and the second control switch. According to the device, wireless charging is combined with wired charging, a user can select a charging mode at will, and the electromobile can be charged more flexibly, more conveniently and faster. Stability of wired charging is achieved, and the effect for reducing impact on the power grid under the wireless charging condition is also achieved.

The invention discloses a shield cutter rotary drive pressure adapting hydraulic control system of a proportional valve controlled energy accumulator. The system comprises a main hydraulic loop and a pressure adapting loop, wherein the main hydraulic loop consists of a motor, a constant power variable pump, a cartridge valve, a control cover plate, a proportional overflow valve, a one-way valve, an electro-hydraulic reversing valve, a proportional reversing valve, an energy accumulator, a quantitative motor and a speed reducer. The system judges the load characteristic when a cutter cuts a rock mass by detecting the system pressure through a pressure sensor, adjusts the proportional reversing valve according to the preset fuzzy adaptive PID control strategy and the change of a pressure signal, reasonably controls the opening direction, size and duration of the energy accumulator to absorb the load impact under different working conditions, and stores the impact energy reutilized for driving the cutter so as to effectively control the influences of system cavity enlargement and rigidity reduction because the energy accumulator is connected. By adopting the proportional valve controlled energy accumulator, the system can adapt the load impact caused by the complex stratum better, and has better energy conservation and reliability.

The invention discloses a control method and device for the voltage imbalance control of ultrahigh-voltage direct-current power transmission valve groups. The method and the device are used for regulating the valve group voltage of a series circuit consisting of two valve groups of controllable power semiconductors. According to the invention, the two valve groups connected in series and on the rectifying side are respectively equipped with current regulating units, the currents of the valve groups are used as control targets, and the two valve groups are also equipped with voltage correcting units put into use selectively. The voltages of the two valve groups are imbalanced through setting the voltage reference values of the voltage correcting units. The voltages at the two ends of the two valve groups on the inverting side are controlled by voltage regulating units, the voltage reference values of the two valve groups are set to be unequal, and the voltage imbalance running of the two valve groups is realized.

The invention relates to a variable servo valve, a power servo valve and a variable pump. The variable servo valve comprises a valve body. A power valve and a displacement valve are arranged in the valve body side by side. The power valve comprises a power valve sleeve and a power valve element. The power valve sleeve is arranged in the valve body in the manner of being capable of sliding axially.The power valve element is arranged in the power valve sleeve in the manner of being capable of sliding axially. The power valve comprises a displacement valve sleeve and a displacement valve element. The displacement valve sleeve is arranged in the valve body in the manner of being capable of sliding axially. The displacement valve element is arranged in the displacement valve sleeve in the manner of sliding axially. A feedback rod drives the power valve sleeve and the displacement valve sleeve to move so as to recover balance under the action of feedback force. A control oil port on the power valve sleeve and a control oil port on the displacement valve sleeve communicate with each other. A servo piston large chamber oil port of the power valve sleeve is controlled by the power valve element to communicate with a pressure oil port of the power valve sleeve or communicate with the control oil port of the power valve sleeve. According to the variable servo valve, the power servo valveand the variable pump, the problems that in the prior art, a displacement control device is complex in structure, large in number of parts, difficult to process or disassemble, and high in cost are solved.

The invention relates to a propelling system and an energy management system and method. The energy management system comprises a first electric energy convertor provided with one or more first bridge arm circuits, a second electric energy convertor provided with one or more second bridge arm circuits and a control device. The one or more first bridge arm circuits are electrically coupled with an energy type power source. The one or more second bridge arm circuits are electrically coupled with a power type power source. The control device is used for controlling the first electric energy convertor and the second electric energy convertor to work under at least two following conditions when a traction device is in a drive mode, wherein under one condition, when the positive required power of the traction device is smaller than or equal to the positive threshold power, part of or all the first bridge arm circuits in the first electric energy convertor start to be used, and all the second bridge arm circuits in the second electric energy convertor are forbidden to be used; and under the other condition, when the positive required power is larger than the positive threshold power, part of or all the first bridge arm circuits in the first electric energy convertor start to be used, and part of or all the second bridge arm circuits in the second electric energy convertor start to be used. The invention further provides the energy management method and the propelling system.

The invention relates to a flexible extensible unitized solar energy cell system and solves problems of fixed power, small application scope and user operation inconvenience existing in solar energy charging equipment in the prior art. The system comprises multiple solar energy cell units and an energy storage device, wherein the solar energy cell units are provided with cell modules connected through lines and magnetic connectors, the adjacent solar energy cell units are spliced through the magnetic connectors, the cell modules of the solar energy cell units are connected in series, and the energy storage device is spliced with the solar energy cell units through the magnetic connectors to form a power source loop. The system is advantaged in that unitization is realized, expansion can be carried out, the application scope is wide, a magnetic splicing mode is employed, operation is convenient and rapid, a flexible structure is further employed, and the system is convenient to carry.

The invention discloses a gravity potential energy storage and power generation system, and relates to the technical field of energy storage and power generation. The gravity potential energy storageand power generation system comprises a bottom plate, a wind power generation mechanism and a fixed frame, the bottom of the fixed frame is fixedly connected with one side of the top of the bottom plate, the two sides of the top of the inner wall of the fixed frame are fixedly connected with vertical rods correspondingly, the bottom end of each vertical rod is fixedly connected with the top of thebottom plate, the surfaces of the vertical rods are slidably connected with a gravity block, the middles of both sides of the fixed frame are fixedly connected with a supporting plate, the front of the supporting plate is rotatably connected with a movable rod through a bearing, and a gear is fixedly connected with the surface of the movable rod. According to the gravity potential energy storageand power generation system, wind energy and solar energy are used to provide electric energy as the initial energy source for lifting heavy objects and then drive the gravity block to rise through amechanical driving mechanism, power is supplied to a power generator through stable mechanical energy produced by own gravity, the gravity potential energy storage and power generation system is suitable for remote mountain areas and special places and the like, the application range is wide, and different power demands are met.

The invention discloses a double-color-temperature COB hybrid chip device and a packaging method of a COB system. The system comprises a COB system and a control circuit mechanism. The COB system comprises a control circuit board, a chip mechanism arranged on the control circuit board, and a fluorescent glue mechanism covered on the chip mechanism. The fluorescent glue mechanism comprises at leasttwo fluorescent glue units which can be mixed to generate the light, wherein the fluorescent glue units correspond to different light source light colors. The chip mechanism comprises a plurality ofchip units. The control circuit mechanism is electrically connected with the chip units, and the control circuit mechanism is used for outputting working voltage corresponding to input voltage of thecontrol circuit mechanism to the chip units. According to the method provided in the invention, the combination of mixed chips is adopted, and the voltage value of each chip unit is adjusted. Therefore, the stepless adjustment of the double color temperature can be realized, and the function is optimized.

The invention relates to a self-powered vehicle speed measurement and overspeed photographing evidence obtaining system which comprises a first energy collection belt, a second energy collection belt and a central control rod, the two energy collection belts are installed at preset positions of a road surface, and the distance between the two energy collection belts is a set value s; each of the two energy collection belts comprises a plurality of fully-sealed power generation units which are connected in series or in parallel. The two energy collecting belts are electrically connected with the central control rod in a wired mode after being connected in series or in parallel, the center control rod is installed at the preset position of a road, a power management module, a center control module and a wireless transmission module are installed in the central control rod, a snapshot camera is installed at the top of the central control rod, and the power management module is electrically connected with the central control module, the snapshot camera and the wireless transmission module, and provides continuous power supply for the central control module, the snapshot camera and the wireless transmission module so as to realize system self-energization; according to the invention, the speed of the vehicle can be monitored, green, environment-friendly and sustainable energy can be provided for the work of the whole system, the self energy supply of the system is realized, and the energy supply problem of the current speed measurement photographing device is solved.

The invention discloses an efficient solar energy conversion photovoltaic power generation system. The system comprises a bottom plate, a first photovoltaic panel and a second photovoltaic panel, wherein the first photovoltaic panel and the second photovoltaic panel are arranged on the bottom plate. A first connecting block is arranged at a bottom of the bottom plate, an universal wheel is arranged on the first connecting block, a first movable groove is arranged in the bottom plate, a first supporting block is arranged in the first movable groove, and the first photovoltaic panel is movably connected to the first supporting block. A first connecting rod is arranged on a side wall of the bottom plate, a first sliding groove is arranged in the first connecting rod, a first sliding block isarranged in the first sliding groove, and the second photovoltaic panel is rotatably connected to the first sliding block. An air cylinder matched with the second photovoltaic panel is arranged on thebottom plate. Under mutual cooperation of the first photovoltaic panel and the second photovoltaic panel, a photovoltaic panel area with a large area is formed on the bottom plate, a sunlight absorption effect of the efficient solar energy conversion photovoltaic power generation system is improved, a power generation capacity of the power generation system is increased, and various different power utilization requirements are satisfied.

The invention belongs to the technical field of turbines, and particularly relates to an ultrahigh-speed turbine applicable to a high-temperature high-back pressure dry gas seal structure. The ultrahigh-speed turbine comprises a turbine shaft assembly 1, a dry gas seal assembly 2, a mechanical dynamic seal assembly 3, a shell assembly 4 and a cooling water jacket assembly 5, wherein the turbine shaft assembly 1 penetrates through the shell assembly 4 and is mounted in the shell assembly 4; the dry gas seal assembly 2 is positioned in the shell assembly 4 and is connected with the turbine shaftassembly 1; the cooling water jacket assembly 5 is mounted at the outer part of the shell assembly 4; and the mechanical dynamic seal assembly 3 is mounted in the shell assembly 4 and is connected with the turbine shaft assembly 1. According to the ultrahigh-speed turbine, thermal energy of a liquid can be converted into ultrahigh-speed mechanical shaft power under the action of a special workingmedium.

The invention relates to the technical field of automatic driving vehicles, and discloses a multi-path power supply circuit and device and an automatic driving vehicle. The multi-path power supply circuit comprises a first overload protection module, a voltage stabilization control module, a second overload protection module and an output interface module, wherein the first overload protection module is connected with the power supply and the voltage stabilization control module, the voltage stabilization control module is connected with the second overload protection module, the second overload protection module is connected with the output interface module, and the output interface module is connected with corresponding connecting equipment. The first overload protection module and the second overload protection module guarantee the use safety of connecting equipment and power supply voltage, the voltage stabilization control module outputs different power supply voltage in multiplepaths, the output interface module provides multiple paths of voltage output, different power utilization requirements of the connecting equipment can be met, the power supply equipment is prevented from directly outputting large current to whole vehicle equipment when breaking down, and the safety of the multi-path power supply equipment is improved.

The invention provides an all-in-one integrated control system for fuel cell vehicle control. The system comprises a direct-current voltage stabilization converter, an all-in-one integrated controller, an air compressor controller and a water pump controller. The voltage input end of the direct-current voltage stabilization converter is connected with the high-voltage end of an electric pile of the fuel cell vehicle; the voltage output end of the direct-current voltage stabilization converter is connected with the voltage input ends of the all-in-one integrated controller, the air compressor controller and the water pump controller. An air compressor control signal output end of the all-in-one integrated controller is connected with a control signal input end of the air compressor controller; and a water pump control signal output end of the all-in-one integrated controller is connected with a control signal input end of the water pump controller.

The invention discloses a solar power generation system. The system comprises a bottom plate, a first photovoltaic panel and a second photovoltaic panel, the first photovoltaic panel and the second photovoltaic panel are arranged on the bottom plate, a first connecting block is arranged at the bottom of the bottom plate, universal wheels are arranged on the first connecting block, a first movablegroove is formed in the bottom plate, a first supporting block is arranged in the first movable groove, and the first photovoltaic panel is movably connected to the first supporting block; a first connecting rod is arranged on the side wall of the bottom plate, a first sliding groove is formed in the first connecting rod, a first sliding block is arranged in the first sliding groove, and the second photovoltaic panel is rotatably connected to the first sliding block; an air cylinder matched with the second photovoltaic panel is arranged on the bottom plate; under the mutual cooperation of thefirst photovoltaic panel and the second photovoltaic panel, a photovoltaic panel area with a large area is formed on the bottom plate, the sunlight absorption effect of the solar power generation system is improved, the power generation capacity of the power generation system is improved, and various different power utilization requirements are met.

The invention provides an LED light concentration device and a parallel exposure machine and relates to the technical field of exposure machines. The LED light concentration device comprises an LED light source, a first lens, a second lens and a third lens, wherein the first lens, the second lens and the third lens are arranged sequentially and located on the same central axis; the LED light source faces the first lens, scattered light emitted by the LED light source passes through the first lens, the second lens and the third lens sequentially to become uniform parallel light. The technical problem that an LED cannot be applied to the exposure machine due to the fact that light emitted by the LED is scattered in the prior art is solved.

The invention belongs to the technical field of turbines, and in particular, relates to a ultrahigh-speed turbine suitable for a high-temperature and high-pressure environment. The ultrahigh-speed turbine comprises a turbine shaft system module, a high-temperature mechanical sealing module, a low-temperature mechanical sealing module, a shell module and a cooling water jacket module; the turbine shaft system module penetrates through and is mounted in the shell module; the high-temperature mechanical sealing module is positioned in the shell module, and is connected with the turbine shaft system module; the low-temperature mechanical sealing module is mounted in the shell module, and is connected with the turbine shaft system module; and the cooling water jacket module is mounted at the external of the shell module. The ultrahigh-speed turbine can finish conversion from heat energy of a fluid to power of a ultrahigh-speed mechanical shaft under special working medium effect, and is used for driving a generator, a compressor, a centrifugal pump and other rotating mechanical devices.

An embodiment of the invention provides a paid solar power generation system based on multi-mode control, and belongs to the technical field of solar power generation. The system comprises a main control management module and a display management unit, wherein the display management unit is used for displaying a mode selection option for a user to select a working mode, and the working mode includes a metering mode and a charging mode; and the main control management module is used for carrying out charging control on solar equipment according to the working mode selected by the user. Due to multiple payment modes and charging modes of the system, the system can adapt to economic conditions and use habits of different regions. In addition, the solar equipment is managed and maintained through the multi-mode control, so that the payment and management of the equipment can be realized. In different charging modes and metering modes, various power utilization requirements of users in different regions or in the same region can be met, so that the workload of operators is reduced, the working efficiency is improved, the user experience is also improved, and different power utilizationrequirements under various complex conditions are met.

The invention discloses a Scott magnetic modulation transformer for a glass ball production process. The Scott magnetic modulation transformer for a glass ball production process comprises a primary coil, a secondary coil, a magnetic core, a reactance coil connected in series with the primary coil, and a direct-current control coil coupled with the primary coil. According to the invention, the three-phase input and two single-phase output of the Scott magnetic modulation transformer are achieved to ensure the three-phase balance of a power grid, the transformer has the stepless voltage regulation characteristic of a magnetic voltage regulator, two sets of transformers can be independently controlled to guarantee output power requirements, meet different power requirements of the glass kiln, simplify gear shifting operation, improve process precision, be matched with automatic control and achieve constant-current or constant-temperature control.