65results about How to "Low output power requirement" patented technology

The plate forming process and apparatus belongs to the field of laser processing technology. The present invention has CO2 laser for pre-heating plate, infrared thermometer for measuring and controlling the plate heating temperature, neodymium glass laser for providing powerful short laser pulse to induce the generation of laser shock wave as the forming force source in processing plate and plate deformation measuring feedback device. The present invention is superior to laser thermal stress forming process, which has inferior formed surface quality, and laser shock forming process, which has small deformation amount, and can form plate directly in relatively great deformation amount, relatively high size precision and relatively high surface quality.

The invention belongs to the technical field of health-care massage chairs, and particularly relates to a special back frame structure for a massage chair. The back frame structure comprises an L-shaped whole curve guide rail and a manipulator massage machine core, wherein the L-shaped whole curve guide rail is installed and welded by a left channel steel type curve guide rail and a right channel steel type curve guide rail which are parallel mutually through a plurality of back frame bending pipes; the lower end of the L-shaped whole curve guide rail is fixedly arranged on a base of the massage chair; the channel steel type curve guide rails are integrally forged and formed by a back frame curve section and a seat frame curve section, wherein the back frame curve section simulates the structures of the head part, the neck part and the back part of a human body, and the seat frame curve section simulates the structures of the caudal vertebra, the hip part and the huckle part; and when in message, the manipulator massage machine core can extend from the head part and the back part to the caudal vertebra till the hip part and the huckle part. The special back frame structure has the advantages that the manipulator massage machine core can reach the caudal vertebra, the hip part and the huckle part for carrying out multi-manipulation massage such as kneading, finger-pressing and knocking, so that the comfort of massage is thoroughly and effectively improved.

The invention provides an energy-saving resonance type electric actuator. The energy-saving resonance type electric actuator comprises a casing, an excitation coil group, a leaf spring and a runner, wherein the casing is formed by connecting an upper end cover and a base, the excitation coil group comprises a bracket and coils wound on the bracket, the bracket is fixedly connected with an upper end cover, the runner is formed by connecting an internal yoke iron, an external yoke iron and a permanent magnet in series, the internal yoke iron, the external yoke iron and the permanent magnet are fixed on a guide shaft, the bracket is positioned in an air gap formed by the internal yoke iron and the external yoke iron, the internal yoke iron forms a sealed magnetic path with the permanent magnet and the external yoke iron, the guide shaft is installed between the upper end cover and the base by a bearing, and the external yoke iron is connected with the base by the leaf spring. The invention can output larger actuation force under the condition of low energy consumption and has compact structure and extensive engineering application prospect.

The invention discloses a full-airspace-covering high-gain circularly polarized antenna. The circularly polarized antenna comprises a forming spherical reflecting surface (1), an insulating support bar (2) and a four-arm helical antenna, wherein the forming spherical reflecting surface (1) is installed in front of the four-arm helical antenna through the insulating support bar (2), and the four-arm helical antenna is a wide-beam resonant antenna. The wide-beam resonant four-arm helical antenna serves as a radiator, the forming spherical reflecting surface is added, the antenna beam width is further broadened, and low elevation gains are improved, so that the maximum gain of the antenna points to the zero-degree elevation nearby, the gains decline gradually with the increasing of the elevation, a saddle-shaped radiation pattern is finally formed, the maximum gain direction is close to the horizontal direction, the zero-degree elevation gain can reach about 4.5dB which is much higher than that of an ordinary wide-beam antenna, the output power requirement for a power amplifier is greatly reduced, and actual using requirements for target tracking and measurement and control are met.

The invention relates to a wheel hub constructed with multiple motors. The invention is characterized in that multiple motors can be installed simultaneously in the wheel hub as the power source and each motor output power can be reduced dramatically as each motor only need to bare local power output. The number of the motors can be increased or decreased according to the requirement of the power output.

The invention provides a device and method for ignition by generating plasma sparks through continuous and pulsed dual-mode lasers in a gas breakdown manner. The device is mainly provided with a continuous laser transmitting end, a pulsed laser transmitting end, a fuel injection device, a cylinder cover, a combustion chamber, a piston and the like. The laser transmitting ends do not stretch into the combustion chamber. According to the device and method for ignition through the continuous and pulsed dual-mode lasers in the gas breakdown manner, the plasma sparks can always be reliably generated to ignite a fuel-air mixture in the combustion chamber; and the ignition path/range can be effectively increased, the ignition speed can be increased, the combustion area can be increased, combustion efficiency can be improved, and fuel can be saved.

The invention discloses a grain screening machine capable of removing impurities in a screen mesh and relates to the technical field of grain screening machines. The grain screening machine comprisesa cylindrical screen mesh device, an impurity removal rocker bar and a base. The cylindrical screen mesh device comprises a cylindrical screen mesh, a conical screen mesh and a screen mesh fixing seat. The cylindrical screen mesh is fixed to the inner surface of the screen mesh fixing seat. The conical screen mesh is fixed to the inner surface of the screen mesh fixing seat. A cross is arranged onthe inner surface of the cylindrical screen mesh. A motor is fixed to one surface of the cross. The motor is matched with a third through hole of a rotary disk device. One end of the conical screen mesh is provided with a circular pipe. A through hole of the circular pipe is matched with the impurity removal rocker bar. The base comprises a fixed base, supporting columns and an impurity outlet plate. The impurity outlet plate is fixed to one surface of the base. A collection seat is fixed to the peripheral side faces of the supporting columns. Under the action of the cylindrical screen mesh device and the impurity removal rocker bar, the grain screening machine has the characteristics of being capable of centralizing impurities not passing the screen meshes and then discharging the impurities in a centralized mode, and the problems that the screening speed is low, and impurities hinder the grain screening speed and screening effect are solved.

A superconduct magnet contactless power supply device is provided. An output terminal of an alternating current power supply is serially connected with a compensation capacitor and then connected withone end of a primary winding. the other output of AC power supply is connected to the other end of primary winding, the primary winding wound by Leeds wire is arranged on the top surface of cryogenicvessel, the two ends of secondary winding wound by superconducting wire are connected with superconducting magnet load through superconducting bridge respectively, and the turns ratio of primary winding to secondary winding is greater than 1; The primary winding and the secondary winding are respectively wound on a disk-shaped coil skeleton, and the secondary winding and the coil skeleton, the superconducting bridge and the superconducting magnet load are all packaged in a cryogenic vessel. The invention solves the problems of large heat leakage of the lead wire, low efficiency of the low-temperature system, easy to induce quenching and the like existing in the contact power supply mode of the external driving power supply, and has the advantages of simple structure, high transmission efficiency, large working air gap and the like.

The invention discloses a satellite-borne double-refrigerator peak load controller which is composed of a control circuit and a power circuit. The control circuit is composed of a microprocessor circuit, a communication interface circuit and an SPWM (sinusoidal pulse width modulation) interface circuit. The power circuit is composed of a first inverter circuit, a second inverter circuit, a first LC filter circuit and a second filter circuit. The control circuit outputs two independent SPWM signals for respectively controlling the two inverter circuits in the power circuit. Then the two independent SPWM signals are converted to smooth sinusoidal voltage signals through the two LC filter circuits. The controller controls the two refrigerators for operation through outputting the two sinusoidal voltage signals of which the phase difference is 90 DEG. The satellite-borne double-refrigerator peak load controller can reduce a total input peak power through peak load shifting and reduces the requirement for a satellite-borne power system in operation of the refrigerators on condition that the two refrigerators are controlled for performing simultaneous operation. Furthermore relative to a manner that two refrigerators are controlled by two controllers, the satellite-borne double-refrigerator peak load controller has functions of simplifying the system and reducing cost.

The invention discloses a two-wing differential flapping micro flapping rotor aircraft, and relates to the field of micro aircrafts. The two-wing differential flapping micro flapping rotor aircraft comprises wings, a transmission mechanism, a power device and a base. The power device and the transmission mechanism are fixed on the base. The two wings are fixed to the two ends of the transmission mechanism correspondingly. During working, a micro motor in the power device supplies power to drive an inner rod of the transmission mechanism to ascend and descend, so that two wing connecting rods simultaneously move in the opposite directions, the pair of wings arranged symmetrically is driven to move downward and upward alternately, and differential flapping is achieved. According to the two-wing differential flapping micro flapping rotor aircraft, it is ensured that the average lift force in the flapping process with the same frequency of the wings is unchanged, wing transient lift force fluctuations are reduced significantly, the lift force is more even within the whole flapping cycle, requirements for output power of the motor are reduced effectively, and the energy utilizing efficiency is improved significantly.

The invention discloses a Doppler wind finding radar system and method based on continuous laser, a continuous fiber laser module generates detection signal light and local oscillation light, the detection signal light is inputted into a light path control and transmit-receive module, and the local oscillation light is inputted into a balance detection module; the light path control and transmit-receive module emits the detection signal light to the atmosphere to be observed, receives the back scattering echo signal light, and inputs the back scattering echo signal light to the balance detection module; the balance detection module converts the signal light into a Doppler frequency shift electric signal; and the signal processing module processes the electric signal to obtain the visual wind speed information. The system is advantaged in that measurement of high-speed resolution and range resolution in a middle and close range in the detection direction of a radar system is realized, and assembly and debugging of the system are facilitated; the requirement on the output power of the laser module is lower so that the laser is lower in power consumption and higher in reliability; the wind finding radar system is wide in adaptability and can be used in various environments and functions.

The invention relates to an elastic assembly, a landing door mechanism and a method for changing the elastic coefficient of a tension spring. The landing door mechanism comprises a guide rail frame, two landing doors and the elastic assembly; the two landing doors are connected with the guide rail frame, and the aim of enabling the two landing doors to synchronously move in an opposite or reversemanner is achieved, one end of the tension spring is connected with one landing door, and the other end of the tension spring is fixed to one side of the other landing door. The elastic assembly is arranged in the landing door mechanism, when the landing doors are in the closing state, the whole elastic coefficient of the tension spring is larger than the elastic coefficient of the tension spring,under the effect of a car door portal crane, and when the landing doors are gradually opened to a certain degree, the elastic coefficient of the tension spring is recovered to the original elastic coefficient. Under the condition of ensuring the self-closing force of the landing doors, the opening resistance of the tension spring to the landing doors under the landing door opening state is reduced, the requirement for the output power of the car door portal crane is achieved, and the cost is reduced.

The invention discloses an environment-friendly dust removal device. The environment-friendly dust removal device comprises a pipe body, a first electrode plate, a second electrode plate, a filter apparatus, a fan, a control apparatus and a cooling apparatus; one end of the pipe body is provided with a dust removal part, and the dust removal part consists of the first electrode plate and the second electrode plate; the first electrode plate and the second electrode plate are used for adsorbing the dust and micro-particles in the gas of the dust removal part; the other end of the pipe body is provided with the fan, the fan is provided with an exhaust opening, the fan is used for guiding the gas to pass through the dust removal part in the pipe body and discharging the gas from the exhaust opening; the filter apparatus is arranged in the pipe body and used for adsorbing the toxic and harmful substances of the gas; and the dust removal efficiency is effectively improved, by adopting the technical scheme, the requirement for the output power of the fan is relatively low, and the noise and electric power consumption in the working process of the dust removal device can be effectively reduced.

The invention discloses a water spraying device for waste gas purification. The water spraying device comprises a tank body, the top surface of the tank body is fixedly connected with a driving motor,and the output end of the driving motor is fixedly sleeved with a driving gear. The invention relates to the field of chemical waste gas purification treatment equipment. A rotating arm and a spraying pipe are driven to be unfolded through the transmission of the driving motor; the water pressure in the spraying pipe is increased by utilizing the effect of a centrifugal force, thus the spraying effect of a spray head is enhanced, the interior of the tank body is sprayed in an all-around mode under the assistance of the rotation of the spraying pipe, the spraying efficiency is greatly improved, the requirement for the output power of an output pump is reduced while the spraying area and flow are increased through the rotating centrifugal force, electric energy is saved, and the equipment efficiency is greatly improved. The problems that an existing water spraying device for waste gas purification is low in spraying efficiency, the atomization degree and the water vapor concentration inthe spraying process are low, and consequently the spraying treatment efficiency is low are solved.

The invention provides a power supply system. The power supply system comprises a power supply module and an extended power module; a rated output voltage of the power supply module is greater than the rated output voltage of the extended power module; the power supply module supports a constant-voltage power supply mode and a constant-power power supply mode; the power supply module is used for supplying power to a power receiving device accessing the power supply module; and the extended power module is used for supplying power to the power receiving device together with the power supply module, when the output voltage of the power supply module is the same as the rated output voltage of the extended power module. The power supply system provided by the invention can meet the power supply requirement of the power receiving device, effectively utilize the electric energy of the power supply module, and reduce the requirements on the output power of the power supply module and the extended power module.