38 results about "Rotary converter" patented technology

A rotary and linear motion device includes a magnetic stator assembly, opposed electromagnetic actuators, and a linear-to-rotary converter (e.g., cam). Each electromagnetic actuator includes a coil that is configured to reciprocate relative to the magnetic stator assembly or to linearly translate in a common direction relative to the magnetic stator assembly. The electromagnetic actuators are coupled to the linear-to-rotary converter and upon reciprocation or linear translation, drive the linear-to-rotary converter in rotary or linear motion. The device may be located inside a wheel, which may be part of a vehicle. If part of a wheel of a vehicle, the device can be used to provide propulsion, steering, braking, and suspension for the vehicle.

The invention provides a high-frequency isolated three-phase cycloconverter type two-way converter and a control method thereof, which belongs to the three-phase high-frequency isolated converter in the field of power electronics and is suitable for charging and discharging a storage battery pack, a supercapcitor set and other energy storage devices. A main circuit is in a structure comprising an input filter, a three-phase cycloconverter, a high-frequency transformer, a full-bridge converter and an output direct current inductor, wherein a switch of the cycloconverter is in time-division drive to ensure the one-way flowing of the power and further realize the soft current conversion. The switching of two modes of rectification and inversion can be realized by changing the power flowing direction of the cycloconverter; the three-phase cycloconverter is modulated by digitalized alternating current space vector; and the alternating current adopts a control method of mixing a d-p decoupling, the proportional-integral (PI) and the repetition (RP). The two-way converter has the advantages of high power density, high efficiency, wide adjusting range of direct current side voltage and electrical isolation for input and output; and the input of unit power factors can be realized and the current harmonics can be effectively inhibited.

The invention discloses a control circuit and a switch type converter with the same. According to the control circuit, a plurality of feedback branches share the same compensation circuit, the feedback branches apply feedback adjusting compensation signals to the compensation circuit through one-way adjusting currents, and therefore needed independent compensation capacitors and compensation resistors can be reduced, the size of the control circuit can be reduced, and the power density can be improved.

A tidal power generator has a floating vessel hull that is subject to rising and falling water levels so that the hull moves vertically up and down. Linear-to-rotary converters are coupled between the vessel hull and a fixed object. The converters allow the hull to move vertically while constraining the horizontal movement of the hull. The converters convert the vertical movement of the hull into rotary movement, which is then used to drive an electrical generator. A harborage is provided to protect the hull and the converters and to regulate the water level for the vessel hull as well as become a fixed object relative to the vessel from which a change in relative position causes power to be developed. If the hull is subject to tidal variations, vertical movement of the hull can be desynchronized from the tidal variations so as to store energy during slack tides.

The present invention relates to the technical field of motor control, and provides a motor drive device, a motor drive method and a motor. The motor drive device comprises a rotary converter, a position calculator, a speed calculation module and a speed controller; and also comprises a voltage limit calculation module performing voltage limit calculation on a speed controller output signal and then outputting a limiting voltage; a first subtracter used for obtaining a direct axis current difference; a current controller outputting a direct-axis voltage component; a quadrature-axis voltage generation module used for outputting a preset quadrature-axis voltage component; a voltage limitator performing voltage amplitude limiting and coordinate transformation on the direct-axis voltage component and the preset quadrature-axis voltage component and then outputting direct-axis voltage and quadrature-axis voltage; and a PWM controller for converting the direct-axis voltage and the quadrature-axis voltage into three-phase alternating-current voltage. The limiting voltage serves as a limit of a drive device output voltage and a quadrature-axis voltage component value is set, thereby realizing limitation of the quadrature-axis current, and thus realizing control of motor current.

The present invention discloses an intelligent functional and portable power supply and a control method thereof. An alternating current network connection is connection of a two-way converter and a first two-way DC/DC converter, the first two-way DC/DC converter module is connected with a second two-way DC/DC converter, a solar cell panel is connected with a two-way converter and a first two-wayDC/DC converter, a flexible thin film solar panel and a storage battery are connected with the first two-way DC/DC converter and the second two-way DC/DC converter, and the second two-way DC/DC converter is connected with an energy storage battery. The intelligent functional and portable power supply and the control method thereof can effectively utilize the solar energy clean energy, can achievedigital intelligent control, can perform modularized design to allow functions of products to be richer, and can meet the energy supply demands of a plurality of voltage-level electrifying devices; and moreover, products are high in universality in various occasions, have standard interfaces, are high in intelligent degree, can be rapidly input to markets for usage, and have overvoltage protection, overcurrent and short-circuit protection to allow the products to be safer and more reliable.

A tidal power generator has a floating vessel hull that is subject to rising and falling water levels so that the hull moves vertically up and down. Linear-to-rotary converters are coupled between the vessel hull and a fixed object. The converters allow the hull to move vertically while constraining the horizontal movement of the hull. The converters convert the vertical movement of the hull into rotary movement, which is then used to drive an electrical generator. A harborage is provided to protect the hull and the converters and to regulate the water level for the vessel hull as well as become a fixed object relative to the vessel from which a change in relative position causes power to be developed. If the hull is subject to tidal variations, vertical movement of the hull can be desynchronized from the tidal variations so as to store energy during slack tides.

A tidal power generator has a floating vessel hull that is subject to rising and falling water levels so that the hull moves vertically up and down. Linear-to-rotary converters are coupled between the vessel hull and a fixed object. The converters allow the hull to move vertically while constraining the horizontal movement of the hull. The converters convert the vertical movement of the hull into rotary movement, which is then used to drive an electrical generator. A harborage is provided to protect the hull and the converters and to regulate the water level for the vessel hull as well as become a fixed object relative to the vessel from which a change in relative position causes power to be developed. If the hull is subject to tidal variations, vertical movement of the hull can be desynchronized from the tidal variations so as to store energy during slack tides.

The invention discloses an intelligent control steering wheel device for a car and belongs to the field of intelligent control steering wheels. In a system of the intelligent control steering wheel device, accelerating and braking commands are converted into angle change of a steering wheel handle, an angle output rotary converter and a gear button are arranged at the input end of an information collection module, a control center controls a motor controller, a braking controller and a gear controller according to output signals of the information collection module, the motor controller is connected with a motor, and the gear controller is connected with a clutch controller and a gear converter. The problems of gear-shifting misoperation, accelerator and brake confusion, large occupied space and inconvenient control are solved, and the intelligent control steering wheel device further has the characteristics of being intelligent and high in safety coefficient.

The invention relates to a three-phase core-type axial rotary converter for wireless energy transmission. The three-phase core-type axial rotary converter comprises a stator core and a rotor core, wherein the stator core and the rotor core adopt two coaxial and opposite cores, an interval serving as an air gap is formed between the stator core and the rotor core, a direction of the air gap between the stator core and the rotor core is coaxial with a motor rotating shaft, wire outgoing grooves are formed in the stator core and the rotor core, 6 three-phase stator coils are wound in the wire outgoing groove of the stator core, 6 three-phase rotor coils are wound on the rotor core, the stator coils and the rotor coils are in coaxial correspondence, the interior of the stator core is divided into 5 core columns by means of the 6 stator coils, and the interior of the rotor core is divided into 5 core columns by means of the 6 rotor coils. The rotary converter provided by the invention can effectively replace an electric brush structure without affecting the overall structure size of the motor, and can be maintained together with the motor body.

The invention relates to the field of shielding electric adjusting valves, in particular to a high-pressure and ultra-high-pressure shielding electric adjusting valve. The valve is composed of a valvebody, a reducer, a valve core assembly, a motor housing, a motor stator, a motor leading wire assembly, a shielding sleeve, a motor rotor, a valve body side bearing assembly, a rear cover, a rear cover side rotary converter, a bearing assembly, a rotary converted, a secondary shielding sleeve, a rotary converted leading wire assembly and a pressure balancing diaphragm. The electric adjusting valve has the advantages that the defect of motor efficiency reduction due to the increasing of the pressure of an adjusting medium and the thickening of the motor shielding sleeve which is also called protective sleeve of an existing shielding electric adjusting valve is overcome and the defects of the damage of the pressure balancing diaphragm and the shielding sleeve, the difficulty of motor statorleading wire installing connection and the like caused by unstable sealing of an existing matching component 'high-pressure and ultra-high pressure medium environment shielding motor' and the expansion and retraction through heat and cold respectively of inert liquid contained in the stator are overcome, the sealing of the high-pressure and ultra-high-pressure shielding electric adjusting valve is allowed to be reliable, the shielding sleeve is not influenced by the expansion and retraction caused by heat and cold respectively of the inert liquid, and the installing and maintaining are convenient.

A multi-directional parallel tilting mechanism for a steel making rocking converter comprises an engine base, a movable table, the rocking converter, two planar dual-drive branches of the same structure and two counterweight devices, wherein the rocking converter is fixedly connected with the movable table; the two planar dual-drive branches are parallelly and symmetrically distributed on two sides of the rocking converter left and right; the two counterweight devices are symmetrically distributed on the outer sides of the two planar dual-drive branches left and right in a co-planar manner; two ends of two RPR linear driving branches in each planar dual branch are connected with rotary pairs at the two ends of an upper cross shaft and a lower cross shaft to form a planar closed-loop dual-moving driving branched chain; and supports in the counterweight devices are fixedly connected with the engine base, pulleys are arranged at the upper ends of the supports, and the two ends of steel wire ropes are connected with the movable table and a balance weights. The multi-directional parallel tilting mechanism is simple in structure and high in bearing capacity and rigidity, and the rocking converter is large in working space and good in rocking flexibility; molten iron and alloy in the converter are uniformly mixed in a multi-directional rocking and rotating manner, and blowing is performed by an oxygen gun, so that not only can the tilting impact torque be reduced, but also the high-quality steel can be refined and the lining life is prolonged.

The invention discloses a technology for producing calcium superphosphate from a titanium dioxide production byproduct waste acid. The technology comprises the following steps: (1) carrying out heat exchange on the titanium dioxide production byproduct waste acid and calcining rotary kiln tail gas to obtain concentrated waste acid, and carrying out coarse filtration on the concentrated waste acidto obtain a clarified acid; (2) blending the clarified acid with concentrated sulfuric acid to obtain a concentrated acid; (3) cooling the concentrated acid, and then carrying out fine filtration to obtain a ferrous iron-removed acid; and (4) reacting the ferrous iron-removed acid with ground phosphate rock in a reactor, overflowing the obtained solution to a rotary converter, performing a reaction, and performing curing after the reaction to obtain the calcium superphosphate. The technology has the advantages of low treatment cost, high conversion rate of the phosphate rock, generation of great economic benefits, and no generation of desulfurized gypsum.

The invention relates to a three-phase iron core-type wireless energy transfer-used radial rotary converter, which comprises a stator iron core and a rotor iron core, wherein the stator iron core and the rotor iron core are two coaxial and opposite iron cores; a gap is arranged between the stator iron core and the rotor iron core as an air gap; the air gap direction between the stator iron core and the rotor iron core and the rotation shaft of a motor are arranged radially; wire outgoing grooves are arranged in the stator iron core and the rotor iron core respectively; six three-phase stator coils are wound on the wire outgoing groove in the stator iron core; six three-phase rotor coils are wound on the rotor iron core; the stator coils and the rotor coils are coaxially corresponding; the six stator coils cut the stator iron core into five iron core columns; and the six rotor coils cut the rotor iron core into five iron core columns. The rotary converter provided by the invention can effectively replace an electric brush structure, the overall structural size of the motor is not influenced, and the rotary converter can be maintained together with the motor body.