32results about How to "Easy to achieve modularity" patented technology

The invention discloses a beam shaping illumination system of a semiconductor laser array, which comprises the semiconductor laser array, an optical system for transforming beam divergence angles of a fast axis, a device for deflecting angles of beams in the fast axis direction, and an optical system for transforming divergence angles of a slow axis and deflecting the beams in the slow axis direction. The system has a key point that the superposition effect of Gaussian beam parts of a plurality of laser units is formed in a distant field by controlling the deflection degree of beam transmission axes of each laser unit in the fast axis and slow axis directions respectively so as to construct illumination beams according with field coverage requirements. The system has the characteristics of high efficiency, simple structure, low cost, integration and practicability, and is particularly applicable as an illumination light source of area array imaging laser radar and active laser illumination detecting systems.

The invention discloses a drive axle for an electric vehicle or a hybrid electric vehicle. The drive axle comprises a motor stator, a differential, a driving conical gear, a damping steering shaft, a damping spring and a steering input conical gear, wherein the motor stator is fixed on a vehicle body; the differential is fixedly connected with a motor rotor; the driving conical gear is arranged at the output end of an axle shaft; the middle of the damping steering shaft is provided with a steering output conical gear; the lower part of the damping steering shaft passes through a shaft barrel;the shaft barrel is provided with a first conical gear and a second conical gear; the steering input conical gear is engaged with the steering output conical gear; a driving input conical gear is engaged with a first spline conical gear and a driving output conical gear at one end of a wheel driving shaft; and the other end of the wheel driving shaft is connected with wheels in a matching way. The drive axle has the advantages of compact structure, vehicle space saving, gear transmission among functional parts, high efficiency, long service life and convenient disassembly and maintenance.

The invention belongs to the technical field of balance cars and particularly relates to a connection structure of a balance car frame. The connection structure includes a car frame body and two wheels which are arranged on both sides of a car body respectively; a controller capable of controlling the car body to stay in balance automatically is arranged in the car frame body, a hub motor is arranged in each wheel, a rotating shaft is arranged in each hub motor, and the car frame body comprises a left pedal and a right pedal; a connecting rod is arranged in the car frame body, the left side ofthe connecting rod is fixed to the right side of the left pedal, the right pedal is rotatably connected with the connecting rod, a rotating shaft of the left wheel is fixedly arranged on the left pedal, and the right wheel is fixedly arranged on the right side of the connecting rod. The connection structure of the balance car frame aims at achieving the effects that installation is convenient andsteering is flexible.

The invention discloses a novel modular multilevel converter submodule topology circuit and a control method thereof. The invention relates to the field of power system DC power transmission and distribution protection control, in particular to an MMC sub-module topology circuit with DC side fault ride-through capability and a control method thereof. The invention provides the novel modular multilevel converter sub-module topology circuit is high in modular degree, higher in reliability, higher in forward and reverse fault current suppression capacity and more balanced and the control method thereof. The circuit comprises a wire inlet port X and a wire outlet port Y, wherein at least two half-bridge sub-modules are connected in series between the wire inlet port X and the wire outlet portY, each half-bridge sub-module is provided with an input port, a first output port and a second output port, and the power switch device can be an IGBT or an MOSFET. The circuit has very strong faultcurrent suppression capability.

The invention provides a flowing phase-change energy storing type falling-film evaporating heat pump unit. The flowing phase-change energy storing type falling-film evaporating heat pump unit is that an inner water pipe inlet, a medium water pipe inlet and an outer water pipe inlet are all connected with a pump-out end of a water pump; an inner water pipe outlet, a medium water pipe outlet and an outer water pipe outlet are all connected with an inlet of a solar thermal collector; an outlet of the solar thermal collector is connected with a suction inlet of the water pump through a second pipeline; the outlet end of a phase-change micro-emulsion discharge pipe is connected with the suction end of a stainless steel magnetic pump; the inlets of a plurality of groups of phase-change micro-emulsion external surface enhanced pipe bundles are all connected with the pump-out end of the stainless steel magnetic pump, and the outlets of the plurality of groups of phase-change micro-emulsion external surface enhanced pipe bundles are all connected with a phase-change micro-emulsion feeding pipe of an energy storing tank; and an electric four-way reversing valve and a falling-film energy storing evaporating device are respectively connected with a compressor, an outdoor side fin type tubular air heat exchanger and a refrigerant/ water drying type heat exchanger. The flowing phase-change energy storing type falling-film evaporating heat pump unit is applied to a solar energy and air energy coupling heat pump system.

The invention discloses a roller shaft combined with a roller press and a high-pressure roller mill, and relates to a roller shaft of a roller press and a high-pressure roller mill, including a shaft core and a shaft sleeve, and the shaft sleeves are at least two The combination sleeve is arranged and combined along the axial direction. The invention is a roller press and a high-pressure roller mill that are less difficult to manufacture, can effectively guarantee product quality, have interchangeability between different models, have a short production cycle, and can realize serialization, modularization, and large-scale production. Squeeze roller shaft.

The invention relates to an ultrasonic transducer device for a geometric shape array of a planar corrosive defect. The ultrasonic transducer device comprises a piezoelectric ultrasonic transducer group which is used for generating and receiving ultrasonic waves, a fixing bracket which is used for fixing piezoelectric transducers, a module which is used for exciting the operation of the piezoelectric transducers and adjusting a received signal and a multi-way switch which is for controlling the ultrasonic waves generated and received by the piezoelectric transducers, wherein the piezoelectric transducer group is fixed on the bracket according to a certain geometric location relationship to form a specific array device; and the piezoelectric transducers are flexibly connected with the fixing bracket through sliding sleeves and pre-tightening springs to realize close contact between each transducer and a piece to be detected. The ultrasonic transducer device for the geometric shape array of the planar corrosive defect, disclosed by the invention, has the advantages that: as the geometric shape array of the defect can be detected through fixing the transducers, high detection efficiency is obtained; as a sound field can cover all regions inside the array, high detection precision is obtained; as transducer configuration with uniform performance and type is adopted, modularization can be realized conveniently; and as the ultrasonic transducer device can be applied to the nondestructive detection of regular ultrasonic industry and occasions with special requirements, the ultrasonic transducer device is wide in application range.

The invention provides an electric automobile integrated thermal management system control method, which is characterized in that: electric automobile thermal management is divided into three sectionsincluding a passenger compartment, a battery and a motor/electric controller, and the control method comprises the steps of: (1) collecting driver operation signals, environment information and partstates, and putting forward the mode switching requirements of all the sections; (2) performing switching to a corresponding thermal management mode according to the mode switching requirement of eachsection; (3) controlling a corresponding actuator to actuate according to the thermal management mode of each section; and (4) since the system has a certain integration degree, when the modes of thesections are switched, partial actuator actions possibly conflict, so that priority judgment is performed on the conflicting actions, the sections are perfectly matched, and a required mode is smoothly switched.

The invention relates to a flowing phase change and energy storage falling film evaporative heat exchange device. An inlet of a water pipe is connected with a pressing-out end of a water pump, an outlet of a water pipe is connected with an inlet of a solar heat collector through a first pipeline, an outlet of the solar heat collector is connected with a sucking-in opening of the water pump through a second pipeline, a first electromagnetic valve is arranged at the inlet end part of the solar heat collector, a second electromagnetic valve is arranged at the outer end part of the solar heat collector, a third electromagnetic valve is arranged on a third pipeline, a fourth electromagnetic valve is arranged on a fourth pipeline, the outlet end of a phase change microemulsion discharging pipe is connected with the sucking-in end of a stainless steel magnetic pump, an inlet of each of a plurality of groups of phase change microemulsion outer surface reinforcing pipe beams is communicated with one end of a fifth pipeline, the other end of the fifth pipeline is connected with the pressing-out end of the stainless steel magnetic pump, an outlet of each of the plurality of groups of phase change microemulsion outer surface reinforcing pipe beams is communicated with one end of a sixth pipeline, and the other end of the sixth pipeline is connected with a phase change microemulsion feeding pipe of an energy storage tank. The flowing phase change and energy storage falling film evaporative heat exchange device can be used in a solar-air energy coupling heat pump system.

The invention provides an electromagnetic driving vacuum die-casting machine. The electromagnetic driving vacuum die-casting machine comprises a driving assembly, a fixed die assembly, a movable die assembly and an executing assembly; a rear cover and a heat insulation plate are respectively positioned at the two ends of a cylindrical shell; a stator ferromagnetic ring is positioned inside the cylindrical shell; a rotor sleeve is positioned inside the stator ferromagnetic ring; a stator winding is connected with an iron core of the stator ferromagnetic ring; stator magnetic isolation rings areuniformly distributed on the inner surface of the cylindrical shell; rotor fan-shaped salient poles are uniformly distributed on the rotor sleeve; a fixed die plate is connected with a fixed die; thefixed die is connected with a movable die; the movable die is connected with a movable die plate; a pressure chamber is positioned inside a rectangular shell, the fixed die plate and the fixed die; amolten metal pouring gate is positioned at the upper part of the second end of the pressure chamber; the first end of the pressure chamber is connected with an inflow hole of a transverse pouring channel; the first end of an injection rod is connected with the rotor sleeve; the second end of the injection rod is connected with an injection plunger; and the injection plunger is positioned at the second end of the pressure chamber. According to the electromagnetic driving vacuum die-casting machine, the starting time can be shortened through the electromagnetic driving, the speed required by injection can be reached in a very short time, the eddy current loss is small, and the electromagnetic driving vacuum die-casting machine has the characteristics of large average injection force.

The invention discloses a clutch-based planetary gear shifting electric drive axle, and belongs to the technical field of power assemblies, and the clutch-based planetary gear shifting electric drive axle comprises a left half shaft, a right half shaft, a drive motor, a first transmission gear, a second transmission gear, a third transmission gear, a fourth transmission gear, a planetary transmission mechanism, a lock-up clutch, a clutch and a differential mechanism; the first transmission gear is connected with a motor rotor and is meshed with the second transmission gear; the second transmission gear is connected with the third transmission gear and is meshed with the fourth transmission gear; the fourth transmission gear is connected with a sun gear; a planet carrier is connected with the differential mechanism; the left half shaft penetrates through the motor rotor, the fourth transmission gear and the middle of the sun gear. Power is outputted to the sun gear, different coupling of the power is achieved through combination and separation of the clutch and the lock-up clutch, and the differential mechanism distributes the power to the two half shafts. The driving motor, the clutch and the axle are integrated, the transmission shaft is omitted, the power system is more compact, and chassis specialization and power assembly serialization can be achieved conveniently.

The invention relates to a moving mechanism, in particular to a two-degree-of-freedom parallel mechanism. The two-degree-of-freedom parallel mechanism comprises a base, drive mechanisms, an upper platform, a lower platform and kinematic chains. The lower platform and the two drive mechanisms are arranged on the base. The upper platform is arranged above the lower platform and is connected with the lower platform through the multiple kinematic chains. The two drive mechanisms are correspondingly connected with the two kinematic chains. Each kinematic chain comprises a swing rod joint and two L-shaped swing rods. Every two L-shaped swing rods are correspondingly located on the two opposite sides of the upper platform or the lower platform. One ends of every two L-shaped swing rods are correspondingly and rotationally connected with the upper platform and the lower platform through rotary shafts, and the other ends of every two L-shaped swing rods are connected with the corresponding swing rod joint. The upper platform is driven by the two drive mechanisms to do pitching or yawing motion. The two-degree-of-freedom parallel mechanism has the flexible rotating capacity, is of a compact structure, is suitable for various application occasions and can reach the normal direction of any point of the whole hemispherical surface.

The invention discloses a flat-type air vibration isolator, wherein the vibration isolator comprises three or four main chambers and three or four additional air chambers; the three main chambers are arranged in a triangular mode; four main chambers are arranged in a quadrilateral mode; and the additional air chambers are arranged in parallel in a space formed by the main chambers. Compared with the traditional dual-chamber air vibration isolator, the vibration isolator provided by the invention has the advantages that a lower chamber of the traditional air spring is replaced by additional air chambers with damping holes, the defect that the volume and damping holes of the lower chamber of the traditional air vibration isolator are unchanged is eliminated, and meanwhile a structure with an upper chamber and the lower chamber in separation is adopted, the center of gravity of the air vibration isolator is lowered, thus the air vibration isolator is more stable, and the air vibration isolator is mainly applied to the vibration isolation of devices, such as an ultra-precise test bed, an ultra-precise machine tool, an optical table.

The invention relates to a multi-output electric energy transducer, aiming at providing a modularized multiple constant current output converter. The converter comprises N-numbered submodulars, wherein each submodular composes a transformer T2N, Nth rectifier and an output direct-current filter capacitor CON; primary windings of the transformer in each submodular are in series in sequence; the converter has two level structures, wherein the first level structure comprises a first transformer T1 and controllable high frequency alternating current sources Vac which are in parallel connection with two ends of the primary windings of the first transformer T1, and the second level structure comprises the N-numbered submodulars; and two ends of secondary windings of the T1 are respectively connected to the head and the tail of the primary windings of the transformers of the submodulars which are in series in sequence. In the invention, excitation inductance of the transformer at first level is not influenced by load short-circuit or open circuit; main circuit parameters has simple design, without considering influences on the main circuit parameters under the abnormal state; and the submodular circuits can be standardized and can realize flexible combination to obtain any required circuit output, thereby reducing production cost.

The invention discloses a telescopic type sitting and lying dual purpose chair. A left parallelogram mechanism and a right parallelogram mechanism are separately formed by a left upper frame cross member, a right upper frame cross member, a left lower frame cross member, a right lower frame cross member, a left front main supporting member, a right front main supporting member, a left rear main supporting member and a right rear main supporting member of a chair frame assembly correspondingly, and a left guiding rail moving pair and a right guiding rail moving pair are formed by the left side and the right side of a chair seat assembly and the left upper frame cross member and the right upper frame cross member, correspondingly. A locking assembly is arranged on a pair of parts which can move relatively, an armrest assembly is arranged between a chair back assembly and the chair frame assembly. When the locking assembly is locked, the chair is in a sitting position, when the locking assembly is released, the parallelogram mechanisms are rotated backwards, a chair back, a chair seat, an armrest and a telescopic member are linked, the chair back and the chair seat are lengthened, a seat member moves horizontally downwards to a lying position, and switching of sitting and lying is achieved at one time. The telescopic type sitting and lying dual purpose chair fully uses the motion features of the parallelogram mechanisms, has telescopic features, has the advantages of simple structure, convenient use, small in occupied ground and space, low cost and the like, and is expected to solve the two problems that an existing sitting and lying chair is not likely to realize mass consumption and the use is limited.