30results about How to "Meet the needs of different loads" patented technology

The invention relates to a lifting mechanism for feeding in a vertical direction. The lifting mechanism for feeding in the vertical direction is simple in structure, high in adjustment precision and high in adjustment speed. The lifting mechanism for feeding in the vertical direction comprises an upper workbench, a main sliding mechanism, an auxiliary sliding mechanism, an X-shaped support folding ladder and a lower workbench, wherein the main sliding mechanism comprises a hand wheel, a screw rod, a screw rod nut and a main sliding block; the hand wheel is arranged at one end of the screw rod; the main sliding block is connected with the screw rod through the screw rod nut.

The invention discloses a superconducting energy storage impulse power electrical source, which comprises an initial charging electrical source, an electrical source switch, a follow current switch, a quench trigger device module of a superconducting energy storage electrical inducer and a load, wherein the quench trigger device module of the superconducting energy storage electrical inducer consists of a plurality of electrical source circuit modules which are connected with each other in parallel. Each electrical source circuit module has the following stricture that a charging-discharging switch and a nonlinear discharging resistor are arranged in a primary winding loop of a superconducting impulse power transformer in parallel, and a power diode is connected with the inner part of a secondary winding loop of the superconducting impulse power transformer. By adopting the structure, the superconducting energy storage impulse power electrical source can realize in-series charging andin-parallel charging of the plurality of modules, effectively realizes the impulse large current by amplifying and overlapping output impulse current with the superconducting impulse power transformer, and has the advantages of high energy-storing density and light weight and small volume of unit power electrical source.

The invention provides a cylindrical thermoelectric generator which comprises an octagon exhaust pipe, a sleeve, thermoelectric generating assemblies, heat insulating layers, radiating fins and cooling water jackets, wherein the octagon exhaust pipe is divided into two end parts and a main body part, and the sleeve and the octagon exhaust pipe are coaxially sheathed at the outermost side of the main body part of the octagon exhaust pipe; the thermoelectric generating assemblies and the heat insulating layers are arranged on each side of the main body part of the octagon exhaust pipe; the upper end of each thermoelectric generating assembly is connected with the radiating fin; the radiating fins, the thermoelectric generating assemblies and the heat insulating layers are all symmetrically distributed on the main body part of the octagon exhaust pipe with respect to the center of the octagon exhaust pipe; both sides of each radiating fin is respectively provided with a cooling water jacket, the side end of the cooling water jacket is connected with an internal through hole of the radiating fin, and the top end of the cooling water jacket is connected with an external cooling system; and the generator is fixedly connected with the outside by a flange. The thermoelectric generator can ensure the full contact between cold and hot surfaces of the thermoelectric generating assembly, the stable generating power and convenient installation, and can be used in multiple situations.

The invention relates to one high frequency and voltage power for plastic liquid capacitor leakage liquid test, which comprises the following parts: silicon controllable intelligent module, filter capacitor, IGBT intelligent power module, resonance capacitor, high frequency transducer, high voltage rotation electrode, control circuit, resonance sense, current sensor and earth connection electrode, wherein, the integral module is to convert work voltage into one impulse voltage to get one adjustable direct flow voltage.

The invention discloses a DC charging device, which comprises a control unit and a main circuit. An AC rectifying unit is used for rectifying AC to DC and outputting the DC to a DC boost unit for boost; a primary-side full-control active bridge is used for converting the DC to square wave AC; and an isolation transformer is used for outputting the square wave AC to a secondary-side active bridge for being rectified to DC to be outputted to a load. The invention also discloses a charging system, which comprises multiple DC charging assemblies in mutual parallel connection, wherein each DC charging assembly comprises multiple DC charging devices sequentially in serial connection. The invention also discloses a charging method, which comprises an independent working mode and a series-parallel networking working mode. In the independent working mode, a single charging device charges a single load; and in the series-parallel networking working mode, multiple DC charging assemblies are in parallel connection for charging the single load. The device, the system and the method of the invention have the advantages that input of multiple types of power supplies is compatible; various types of loads can be met; and the like.

The invention relates to a linear voltage stabilizing power circuit, which comprises a three-end adjustable parallel voltage stabilizer, an electronic switch, an output assembly, a first resistor, a third resistor, a fourth resistor and a fifth resistor, the anode of the three-end adjustable parallel voltage stabilizer is grounded while the cathode is connected with a power unit through the first resistor; the third resistor, the fourth resistor and the fifth resistor are connected with a reference voltage end of the three-end adjustable parallel voltage stabilizer, the other end of the third resistor is grounded through the electronic switch, the other end of the fourth resistor is grounded; the controlling end of the output assembly is connected with the cathode of the three-end adjustable parallel voltage stabilizer while the input end is connected with the power unit of the computer system and the output end is connected with the other end of the fifth resistor as the output end of the linear voltage stabilizing power circuit. The linear voltage stabilizing power circuit can output different voltages according to the different detected signals so as to meet the requirement of different loads, so that the cable laying space and required elements for host machine board can be saved.

The invention relates to the technical field of semitrailers, in particular to a retractable frame for a low flat-bed semitrailer. The retractable frame structurally comprises a fixed frame assembly, a movable frame assembly, a rolling wheel device and a locking device which is used for fixing the movable frame assembly in the horizontal direction; the rolling wheel device is arranged on the fixed frame assembly and / or the movable frame assembly, and is used for supporting the fixed frame assembly, and enabling the movable frame assembly to move in a retractable manner in the horizontal direction relative to the fixed frame assembly. Compared with the prior art, the retractable frame provided by the invention has the advantages that retractable length adjustment of the whole frame is realized; when a larger carrying capacity is required to be met, the whole frame can be lengthened; during routine use, the whole frame can be shortened to avoid various inconvenience caused by the relatively long frame body during use, so that different carrying capacity requirements can be met; the operation is simple, the use is convenient, and the production cost of the frame is reduced.

The invention provides an air conditioner system used for achieving upward air-out of refrigerating and downward air-out of heating. The air conditioner system comprises a compressor, a first four-way valve, an indoor heat exchanger assembly, a throttling assembly and an outdoor heat exchanger assembly which are connected into a loop. The indoor heat exchanger assembly comprises a first heat exchanger module and a second heat exchanger module which are connected in parallel. The installation position of the first heat exchanger module on the air conditioner system is higher than that of the second indoor heat exchanger module. The working modes of the air conditioner system comprise the first refrigerating mode that only the first heat exchanger module works, the first heating mode that only the second heat exchanger module works and / or the second refrigerating mode and the second heating mode that the two heat exchanger modules work simultaneously. The invention further provides a control method of the air conditioner system. Independent work and simultaneous work of the two heat exchanger modules can be achieved.

The invention discloses a small type fixed-wing unmanned aerial vehicle modularization load cabin device which comprises a vehicle body and wings. The device is characterized in that load cabins are arranged on the lower sides of the wings, the load cabins are independent modules which are connected with the vehicle body of an unmanned aerial vehicle, loads are connected in the load cabins, and gravity centers of the connection between the loads and the load cabins are arranged in a gravity center balance range of the vehicle body of the unmanned aerial vehicle. The invention further disclosesa method based on the small type fixed-wing unmanned aerial vehicle modularization load cabin device. According to the device disclosed by the invention, the load cabins of the fixed-wing unmanned aerial vehicle are modularized, and load replacement and use can be quickly and conveniently achieved under the different situations; furthermore, when the loads are replaced, only the load cabins needto be replaced, and the gravity center positions of the load cabins are prevented from being reconfigured; thus, the device is convenient to use.

The invention relates to a co-production device for producing hydrocarbon through methanol dehydration as well as cold, heat and power, which is characterized in that methanol is used as raw materials to co-produce petroleum, liquefying gas as well as cold, heat and power, and heat, dry gas and water generated by hydrocarbon production through the methanol dehydration are used for a cooling and heating electric device and can lower the production cost of the device; and liquefying gas generated by the raw materials of methanol and the hydrocarbon production through the dehydration can also be used for the cooling and heating electric device so as to enhance the regulating capacity of the cooling and heating electric device. The raw material methanol has rich sources, and crude methanol can be used as the raw materials. Petroleum and liquefying gas products can satisfy the standards of clean fuel and has large product market demands. The heat generated by the hydrocarbon production through the methanol dehydration is used for the cooling and heating electric device and can lower the carbon dioxide emission in a cooling and heating power production process.

The invention discloses an LED (light-emitting diode) constant-current driving power supply which is simple in structure, high in power factor and wide in input / output voltage range and can reduce the utilization cost. The LED constant-current driving power supply is provided with an EMI (Electro-Magnetic Interference) filter circuit, wherein after being subjected to voltage division by a voltage division circuit, the output of the EMI filter circuit is connected with a power factor correcting circuit; a zero current detecting circuit and an output circuit are connected with the power factor correcting circuit; the output circuit feeds back a current signal to the power factor correcting circuit through a current detecting circuit; and the output circuit also respectively feeds back undervoltage and overvoltage signals to the power factor correcting circuit through an undervoltage detecting circuit, an undervoltage feedback circuit, an overvoltage detecting circuit and an overvoltage feedback circuit correspondingly.

The invention provides a method for quickly adjusting the heat flux of a platinum channel and improving power-supply efficiency, which solves the technical problems that: because of incapability of accurately calculating transformer parameters caused by a relatively high loop current in the prior art, more transformer specifications are needed; the designed direct electric heating gear is a little big; and the electric energy utilization rate is a little low. The adopted technical scheme comprises the following steps of: dividing the adaptive transformer in each zone into two types of three-specification structure designs, namely, type A and type B according to the whole design requirements of the platinum channel, outputting adaptive power of each zone by adjusting in a range of between 60 and 90 percent of full load of the transformer according to the design requirements of each zone of the platinum channel, and allowing the full load of the transformer in the range of between 60 and 90 percent to output by means of the matched specification of the adaptive transformer, the combined adjustment technological parameter change of transformation or the electrical heating load ageing. The method of the invention avoids the technical problem that the electrical parameters of platinum load cannot be precisely calculated because of the overhigh loop current, and as the output voltage can be adjusted randomly and precisely, the method solves the problem of low electric energy utilization rate.

The embodiment of the invention provides a bogie side beam, a bogie and a rail vehicle. The side beam comprises: a main side beam plate which is made of an elastic composite fiber material; an auxiliary side beam plate made of an elastic composite fiber material and stacked above the main side beam plate, wherein the middle bottom surface of the auxiliary side beam plate is in contact with the topsurface of the main side beam plate, and buffer gaps are formed between the bottom surfaces of two ends of the auxiliary side beam plate and the top surface of the main side beam plate; and an elastic stopper arranged at the end part of the auxiliary side beam plate and positioned in the buffer gap. When the middle part of the side beam bears a first vertical load, a gap is formed between the elastic stopper and the top surface of the main side beam plate; when the middle part of the side beam bears a second vertical load, the main side beam plate and the auxiliary side beam plate are elastically deformed until the elastic stopper is in contact with the top surface of the main side beam plate; AND the second vertical load is greater than the first vertical load. According to the bogie side beam, the bogie and the rail vehicle, the rigidity supporting requirements of various loads of the vehicle can be met.

The invention provides a method for quickly adjusting the heat flux of a platinum channel and improving power-supply efficiency, which solves the technical problems that: because of incapability of accurately calculating transformer parameters caused by a relatively high loop current in the prior art, more transformer specifications are needed; the designed direct electric heating gear is a little big; and the electric energy utilization rate is a little low. The adopted technical scheme comprises the following steps of: dividing the adaptive transformer in each zone into two types of three-specification structure designs, namely, type A and type B according to the whole design requirements of the platinum channel, outputting adaptive power of each zone by adjusting in a range of between 60 and 90 percent of full load of the transformer according to the design requirements of each zone of the platinum channel, and allowing the full load of the transformer in the range of between 60 and 90 percent to output by means of the matched specification of the adaptive transformer, the combined adjustment technological parameter change of transformation or the electrical heating load ageing. The method of the invention avoids the technical problem that the electrical parameters of platinum load cannot be precisely calculated because of the overhigh loop current, and as the output voltage can be adjusted randomly and precisely, the method solves the problem of low electric energy utilization rate.

The invention discloses an ultrathin type breeze double power generator. The ultrathin type breeze double power generator comprises fan blades, a bracket, a stator, a rotor, an upper power-generation wheel disc, a lower power-generation wheel disc and a main shaft, wherein the upper power-generation wheel disc is connected with the fan blades, and the lower power-generation wheel disc is connected with the bracket; the stator comprises a disc-shaped bracket, an upper coil winding, a lower coil winding and a main shaft; the upper coil winding and the lower coil winding are respectively fixed on the top surface and the bottom surface of the disc-shaped bracket which is fixed on the main shaft which is vertically arranged, and the lower end of the main shaft is connected with the upper end of the lower power-generation wheel disc; the rotor comprises a shell enclosing the stator inside; the upper side and the lower side of an inner cavity of the shell are respectively provided with a magnet; a gap is reserved between each magnet and each coil winding on the stator; the two ends of the shell are connected with the main shaft by a bearing and rotate around the main shaft; output lines of the coil windings penetrate through the middle part of the main shaft and are led out; and the upper end of the shell is connected with the upper power-generation wheel disc. The ultrathin type breeze double power generator disclosed by the invention has the advantages that the structure is compact, and the same power generator can output multiple different voltages and powers according to different needs, so that the need for different loads can be met.

The invention relates to a linear voltage stabilizing power circuit, which comprises a three-end adjustable parallel voltage stabilizer, an electronic switch, an output assembly, a first resistor, a third resistor, a fourth resistor and a fifth resistor, the anode of the three-end adjustable parallel voltage stabilizer is grounded while the cathode is connected with a power unit through the firstresistor; the third resistor, the fourth resistor and the fifth resistor are connected with a reference voltage end of the three-end adjustable parallel voltage stabilizer, the other end of the thirdresistor is grounded through the electronic switch, the other end of the fourth resistor is grounded; the controlling end of the output assembly is connected with the cathode of the three-end adjustable parallel voltage stabilizer while the input end is connected with the power unit of the computer system and the output end is connected with the other end of the fifth resistor as the output end ofthe linear voltage stabilizing power circuit. The linear voltage stabilizing power circuit can output different voltages according to the different detected signals so as to meet the requirement of different loads, so that the cable laying space and required elements for host machine board can be saved.

The invention relates to the technical field of semitrailers, in particular to a retractable frame for a low flat-bed semitrailer. The retractable frame structurally comprises a fixed frame assembly, a movable frame assembly, a rolling wheel device and a locking device which is used for fixing the movable frame assembly in the horizontal direction; the rolling wheel device is arranged on the fixed frame assembly and / or the movable frame assembly, and is used for supporting the fixed frame assembly, and enabling the movable frame assembly to move in a retractable manner in the horizontal direction relative to the fixed frame assembly. Compared with the prior art, the retractable frame provided by the invention has the advantages that retractable length adjustment of the whole frame is realized; when a larger carrying capacity is required to be met, the whole frame can be lengthened; during routine use, the whole frame can be shortened to avoid various inconvenience caused by the relatively long frame body during use, so that different carrying capacity requirements can be met; the operation is simple, the use is convenient, and the production cost of the frame is reduced.

The invention provides an elastic unit combined tire, which consists of a rim, rubber air springs, metal shells and tread rubber, wherein a certain number of lug bosses are formed on the circumference of the rim; a rubber air spring is arranged on each lug boss; a metal shell is arranged on an upper end plate of each rubber air spring; the tread rubber covers the surface of each metal shell; tailends of two adjacent metal shells are connected through a hinge; an elastic unit consists of one or a group of rubber air springs, the metal shells and the tread rubber covering the surface of the metal shells; and the whole tire consists of a certain number of elastic units and the rim. The combined tire can save massive equipment investment and reduce technical difficulties in processing; and during use, the elastic unit can be rapidly replaced, the service life is long, the safety is high, and the bearing capacity is adjustable.

The invention provides a matrix digital-analog audio-video network monitoring system, which comprises a management server / web server, a signal control sever, a video service cluster, a forwarding service cluster, an interface service cluster, a digital-analog proxy server, and an analog-matrix control server, wherein the management server / web server is used for acquiring resources from analog clients through a network respectively, and acquiring a web service from a web client; the signal control sever is used for performing identification, authorization, accounting service, event subscription and equipment management on the management server / web server; the video service cluster is a server cluster, and the video plan, the video retrieval, the video playback and the video management of the video service cluster are controlled by the signal control server; the forwarding service cluster is connected with the signal control server through the network; the interface service cluster is connected with the forwarding service cluster through the network; the digital-analog proxy server is connected with the signal control server through the network; and the analog-matrix control server is connected with the signal control server and the digital-analog proxy server through the network respectively.

The invention discloses a direct current-direct current converter comprising a pulse width modulation module, a switching tube and a voltage regulation module. The output end of the pulse width modulation module is connected to the voltage regulation module via a switch tube. An inputted direct-current voltage passes through the pulse width modulation module to drive connection or disconnection ofthe switching tube; a square-wave voltage is generated based on the connection or disconnection of the switching tube; and the voltage regulation module carries out voltage regulation to obtain a needed voltage. The pulse width modulation module employs a pulse width modulator; and the output terminal of the pulse width modulator is connected with the switching tube. The voltage regulation moduleconsists of a transformer and a filter circuit. According to the invention, stable outputting of two paths of voltages is realized and the two paths of load capacities can be adjusted, so that the voltage regulation precision is improved substantially and the electricity consumption need of the load is ensured.

A high-frequency high-voltage power supply for liquid leakage detection of plastic liquid containers, including a silicon controlled rectifier intelligent module [2], a filter capacitor [3], an IGBT intelligent power supply module [4], a resonant capacitor [5], and a high-frequency step-up transformer [6], high voltage rotating electrode [7], control circuit [8], resonant inductor [9], current sensor [11], ground electrode [12]. The thyristor intelligent rectifier module [2] is a single-phase full-bridge thyristor rectifier circuit, which converts the single-phase power frequency 220V voltage into a pulsating voltage with adjustable voltage amplitude, which is smoothed by the filter capacitor [3] , get an adjustable DC voltage Ud from 0 to 310V. The IGBT intelligent power module [4] is a single-phase fully-controlled IGBT inverter bridge, which transforms Ud into an alternating symmetrical square wave voltage u1 equal to the switching frequency of the IGBT. The high-frequency step-up transformer [6] transforms the low voltage obtained on its low-voltage side coil into high voltage, and outputs it to the load at both ends of the high-voltage side coil. The two discharge needles of the high-voltage rotating electrode [7] are directly facing the position of the liquid container [13] to be detected on the ground electrode [12].

The invention discloses a torque motor with positive magnetic spring stiffness, which consists of a bottom plate, a coil winding A, a coil winding B, an output shaft, a rotor, a yoke, a permanent magnet, a top plate, a bearing a, a bearing b, a sleeve, and a fixed The yoke between the bottom plate and the top plate is divided into a left yoke and a right yoke. A permanent magnet is installed in the cavity formed on one side of the left yoke and the right yoke, and two parallel magnets are installed in the cavity formed on the other side. Coil winding A and coil winding B are arranged, and the inner cavity of coil winding A and coil winding B is provided with a rotor fixed on the output shaft. The two ends of the rotor and the inner surface of the yoke form four-section annular air gaps, and the two ends of the output shaft are radially Bearing a and bearing b are respectively supported in the holes of the bottom plate and the top plate, and the axial direction is fixed by the sleeve and the shaft shoulder. The present invention has the torque-angular displacement characteristics of the positive magnetic spring stiffness within a certain angular displacement range, that is, the rotor does not need an external return spring, and can be stabilized at the neutral position under the action of the permanent magnet polarized magnetic field, and has good stability and wide angular displacement range. Large, compact structure, proportional control and other advantages, it is suitable for direct drive requirements of angular displacement proportional control in electromagnetic drive system.

The invention discloses a DC charging device, which comprises a control unit and a main circuit. An AC rectifying unit is used for rectifying AC to DC and outputting the DC to a DC boost unit for boost; a primary-side full-control active bridge is used for converting the DC to square wave AC; and an isolation transformer is used for outputting the square wave AC to a secondary-side active bridge for being rectified to DC to be outputted to a load. The invention also discloses a charging system, which comprises multiple DC charging assemblies in mutual parallel connection, wherein each DC charging assembly comprises multiple DC charging devices sequentially in serial connection. The invention also discloses a charging method, which comprises an independent working mode and a series-parallel networking working mode. In the independent working mode, a single charging device charges a single load; and in the series-parallel networking working mode, multiple DC charging assemblies are in parallel connection for charging the single load. The device, the system and the method of the invention have the advantages that input of multiple types of power supplies is compatible; various types of loads can be met; and the like.

The invention discloses a superconducting energy storage impulse power electrical source, which comprises an initial charging electrical source, an electrical source switch, a follow current switch, a quench trigger device module of a superconducting energy storage electrical inducer and a load, wherein the quench trigger device module of the superconducting energy storage electrical inducer consists of a plurality of electrical source circuit modules which are connected with each other in parallel. Each electrical source circuit module has the following stricture that a charging-discharging switch and a nonlinear discharging resistor are arranged in a primary winding loop of a superconducting impulse power transformer in parallel, and a power diode is connected with the inner part of a secondary winding loop of the superconducting impulse power transformer. By adopting the structure, the superconducting energy storage impulse power electrical source can realize in-series charging andin-parallel charging of the plurality of modules, effectively realizes the impulse large current by amplifying and overlapping output impulse current with the superconducting impulse power transformer, and has the advantages of high energy-storing density and light weight and small volume of unit power electrical source.

The invention discloses a solar energy supply light-emitting diode (LED) constant current driving power with controllable voltage, wherein the solar energy supply LED constant current driving power with the controllable voltage is simple in structure, high in transfer efficiency and wide in output voltage range, and use cost can be reduced. The solar energy supply LED constant current driving power with the controllable voltage comprises a solar energy charging circuit and an energy storage element connected with the solar energy charging circuit. Output of the energy storage element is transmitted to a pulse-width modulation (PWM) power driving circuit, and the output of the energy storage element is further connected with a power supply detection circuit which sends a detection signal to a charge control circuit to control the solar energy charging circuit. The PWM power driving circuit is connected with an output circuit, a timing circuit and a transmission gain and frequency adjustment circuit, the output circuit feeds a current signal back to the PWM power driving circuit through a current detection circuit, and the output circuit respectively feeds an undervoltage signal and an overvoltage signal back to the PWM power driving circuit corresponding to an undervoltage detection circuit, an undervoltage feedback circuit, an overvoltage detection circuit and an overvoltage feedback circuit.

The invention discloses a rotary compressor and a method. The rotary compressor comprises a shell, a first cylinder, a second cylinder, a first blade and a second blade, wherein the first cylinder isprovided with a pressure control cavity, wherein the second end of a first blade groove is communicated with the pressure control cavity; the pressure control cavity is connected to a first air suction channel through a first control air passage; the pressure control cavity is connected to the inner space of the shell through a second control air passage; and only one of the first control air passage and the second control air passage is in a connected state at the same moment. According to the rotary compressor and the method, the pressure control cavity is arranged in the cylinder, the bladegroove of the cylinder is communicated with the pressure control cavity, and the pressure control cavity is respectively communicated with low-pressure gas and high-pressure gas through two differentcontrol air passages, so that the cylinder stops compressing a refrigerant when the low-pressure gas is introduced into the pressure control cavity, the cylinder normally compresses the refrigerant when the low-pressure gas is introduced into the pressure control cavity, the switching of the capacity of the compressor is achieved, and the requirements for different loads in different seasons aremet.