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

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 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 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 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 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.