551results about How to "Optimize space layout" patented technology

The invention discloses a power supply semi-trailer of electric drive fracturing equipment. The combination manner of a gas turbine engine, a power generator and a rectification unit is adopted, the power generator directly transmits the winding form and voltages needed by a rectification unit, conventional rectification transformer equipment is omitted, the rectification unit is connected with inversion units through common direct current buses, the common direct current buses can drive the multiple inversion units separately, and wiring of power supply circuits is reduced. The high-voltage inversion units are arranged on a gooseneck of the electric drive semi-trailer, and the space arrangement of the equipment is optimized. The whole power supply equipment is more compact in structure, small in occupied area and simple in wiring.

The invention discloses a display panel. The display panel comprises an array substrate, a luminescent layer, a touch control panel, a first flexible circuit board and a second flexible circuit board, the array substrate comprises a display area and an edge binding area which is located on the edge of one end of the display area, and the luminescent layer is arranged on the display area in an overlapped mode; the first flexible circuit board is connected to the edge biding area in a lap joint mode, the touch control panel is arranged on the side, back to and away from the array substrate, of the luminescent layer, and the second flexible circuit board is connected to the portion between the touch control panel and the edge biding area in a flexible mode; a first conductive leading wire is arranged on the edge binding area, and the second flexible circuit board is connected to the first flexible circuit board through the first conductive leading wire. The invention further discloses a display device. The second flexible circuit board does not influence the bending effect of the first flexible circuit board, no device such as a connector influences the bending effect of the first flexible circuit board, and the user experience is improved.

The invention relates to a shear hysteretic damper, which comprises an upper rigid connecting plate and a lower rigid connecting plate which are connected with a building structure, a hysteretic energy-consuming web plate, and a flange plate, wherein the rigid connecting plates and the flange plate are fixedly connected to the hysteretic energy-consuming web plate. At least one side of the hysteretic energy-consuming web plate is provided with transverse stiffening ribs or / and longitudinal stiffening ribs. The flexibility-fineness ratio parameter of the hysteretic energy-consuming web plate is between 0.2 and 0.5, the plate thickness ratio of the flange plate to the web plate is not less than 4, the rigidness ratio of the stiffening ribs is not less than 3.0, and the shape factor is between 0.5 and 1.5. The hysteretic energy-consuming web plate is made of rolled steel the yield strength of which is not more than 235MPa, the flange plate and the rigid connecting plates are made of the rolled steel the yield strength of which is not less than 235MPa, and the stiffening ribs are made of the rolled steel the yield strength of which is not less than 235MPa. The shear hysteretic damper has the advantages of simple structure, stable performance, low manufacture and maintenance cost, small space occupation ratio, easy space distribution, replacement after an earthquake and the like.

The invention provides a two-waveband infrared optical system, belongs to an infrared remote sensing optical system, and solves the problems of limited optical path layout of the conventional map-integrated device and large volume of the entire device. The system comprises a scanning rotating mirror, a two-waveband infrared optical lens, a spectrometer, an infrared focal plane detector and a signal processor, wherein the two-waveband infrared optical lens consists of an infrared window, a beam splitter, a medium wave lens and a long wave lens; the scanning rotating mirror is positioned above the infrared window; an infrared optical fiber transmits infrared light output by the medium wave lens to the spectrometer; the infrared focal plane detector is positioned on an output optical axis of the long wave lens; and output signals of the spectrometer and the infrared focal plane detector are transmitted to the signal processor through a transmission cable. The system has small volume, high integration level, and convenient and flexible use, can realize automatic scanning, identification and track of a target by observing two wavebands of external scenery, and can be effectively applied to military or civil fields of missile infrared guidance, atmospheric pollution, remote measurement of poisonous gas and the like.

The invention discloses a bridge type operation platform which comprises a machine seat assembly, wheel assemblies, a telescopic arm assembly and a platform assembly. The machine seat assembly comprises two girders, a plurality of girder connecting plates used for enabling the two girders to be connected, and two wheel assembly installation seats used for installing the wheel assemblies, and the two wheel assembly installation seats are arranged at the front ends and the rear ends of the girders respectively and provided with U-shaped wheel assembly installation grooves. Each wheel assembly comprises a wheel cross beam, a steering mechanism, a leveling mechanism and driving wheel assemblies arranged at the two ends of the wheel cross beam, wherein the wheel cross beam is installed in the corresponding wheel assembly installation grooves through a cross beam rotating shaft, and the leveling mechanism comprises leveling oil cylinders. The machine seat assembly is adjusted to be level through the two leveling oil cylinders of each leveling mechanism so that the whole bridge type operation platform can work in a relatively stable state, the safety performance is improved, and it is ensured that construction can be conducted under complex road conditions.

The present invention discloses a system and a method for intelligent reservation of district temporary parking stalls. The system comprises: a mobile phone client used for parking stall reservation,reservation cancel, route guidance and expense payment operation; a license plate identification module configured to collect and identify information of a reservation vehicle; a gateway control module configured to control closure and opening of a district gateway; and a background management server comprising a parking stall information collection module, a user behavior data collection module and a payment management module, wherein the parking stall information collection module is configured to collect and update usage states of parking stalls in each district to form a parking stall information database, the user behavior data collection module configured to record users' daily trips, reservation time, parking time periods and parking duration to form a user behavior database, the payment management module is configured to calculate cost generated by user parking and user credit grade evaluation, and the mobile phone client, the parking stall information collection module and thelicense plate identification module are connected with the background management server.

An embodiment of the invention provides a superconducting magnet and magnetically-controlled Czochralski single crystal equipment. The superconducting magnet comprises a superconducting switch, superconducting coils, a coil framework and a cryostat. The superconducting coil is fixedly arranged on the coil framework; and the plurality of superconducting coils are connected in series. The superconducting switch is connected in parallel with the superconducting coils, and is fixedly arranged on the coil framework. The coil framework is arranged in the cryostat; and the cryostat is provided with arefrigerating machine. By setting the superconducting switch to be on and off, close conduction of current between the superconducting coils and the superconducting switch is realized so as to withdraw an excitation power source. The superconducting magnet and the magnetically-controlled Czochralski single crystal equipment solve the problems that the superconducting magnet in the existing magnetically-controlled Czochralski single crystal equipment is large in electric power cost and use cost, poor in quality of the produced single crystal and low in operation safety.

The invention relates to a six-degree-of-freedom attitude adjustment docking platform. The six-degree-of-freedom attitude adjustment docking platform mainly comprises a mobile base, a bottom layer three-degree-of-freedom motion platform and a top layer three-degree-of-freedom motion platform. According to the six-degree-of-freedom attitude adjustment docking platform, driving motors of the bottomlayer motion platform are symmetrically arranged, so that the driving motors are uniformly distributed in the plane of the platform, the overall quality of the platform is uniformly distributed, and the platform has better balance, so that the dynamic performance is improved. Crisscross linear sliding ways are adopted in the platform so as to be on the same layer with a supporting frame A, and circular sliding ways are adopted so as to be on the same layer as a supporting frame B. The same layer distribution is favorable for height dimension compression and height increase caused by series connection of structures is reduced. The position and posture adjustment of the bottom layer motion platform is realized by utilizing the differential principle of four driving electric cylinders, so that the superposition of space layers caused by the one-to-one corresponding distribution of drivers and driving objects in a traditional mode is avoided, the traditional driving arrangement space is optimized, and the platform is enabled to be compact in height direction.

A reception structure for a video / audio device includes a machine box having a surface on which a display is mounted. The display has one side by which a CD-ROM having an end is mounted. The machine box is received within a reception box and the end of CD-ROM of the machine box is pushed out from the reception box so that a CD is allowed to be accessed with respect to the CD-ROM when a locking mechanism is loosened. The locking mechanism for fixing the machine box within the reception box and a spring-out mechanism for pushing out the end of the CD-ROM of the machine box are disposed between the machine box and the reception box.

The invention discloses an FPGA-based device and method for loading and upgrading object codes. The device comprises a main control processor, an FPGA, a bidirectional buffer having the output enable control, and a non-volatile memory. The FPGA and the non-volatile memory are connected via four data signal lines, one clock signal line and one chip selection signal line. The main control processor and the non-volatile memory are connected, and the bidirectional buffer is arranged between the main control processor and the non-volatile memory for isolating switch. The main control processor also controls the output enable of the bidirectional buffer and the initial reset signal of the FPGA. Based on the above method and the above device, not only the upgrading function is realized, but also the loading rate of the FPGA is ensured. Meanwhile, the start-up time of the system is reduced.

The invention relates to a multi-state gas-liquid optical fiber sensor for detecting pressure, temperature and component concentration simultaneously. The sensor consists of a broadband light source, a spectrum analytical instrument, a return light guide optical fiber, a first light guide optical fiber, an optical fiber coupler, a second light guide optical fiber and a sensing optical fiber probe, wherein a temperature cavity for detecting the temperature of liquid or gas to be detected, a pressure cavity for detecting the pressure of the liquid or gas to be detected, and a component concentration cavity for detecting the component concentration of the liquid or gas to be detected are formed on the sensing optical fiber probe; fiber Bragg gratings with different reflection wavelengths arearranged in the temperature cavity and the pressure cavity; the temperature and pressure information of the liquid or gas to be detected is detected by detecting the change of the reflection wavelength of each fiber Bragg grating; an evanescent field sensing area is formed on an optical fiber section in the component concentration cavity; and the component concentration of the liquid or gas to bedetected is obtained by monitoring the attenuation degree of light intensity of a corresponding wavelength section in an optical fiber through the interaction of an evanescent field and the liquid orgas to be detected.

The invention discloses an automobile assembly sliding plate conveying line. A track system of the conveying line comprises trim lines and chassis lines. Line turning portions are arranged inside the trim lines, chassis lines and / or the connecting positions of the ending ends of the trim lines and the starting ends of the chassis lines, steering devices are arranged at the ends of the line turning portions, and a transition track is arranged between every two adjacent steering devices. The ending ends of the chassis lines and the starting ends of the trim lines are connected through sliding plate recovery lines, and then a sliding plate can cyclically move in a whole line. A sliding plate body is provided with a lifting table and workpiece storage mechanisms, the workpiece storage mechanisms are used for storing workpieces needing to be stored in disassembly station sections of the trim lines, and the lifting table is used for lifting workpieces in lifting station sections of the chassis lines. The chassis lines are provided with following power supply systems respectively in an ascending station section and a descending station section of the lifting table, and the following power supply systems can provide electric power correspondingly when the lifting table ascends and descends. The technical performance of a sliding plate conveying system can be improved at least in the aspect of assembly accuracy or work efficiency or manufacturing cost, and application prospects are good.

The invention discloses a multi-mode steer-by-wire device and belongs to the technical field of automobile steer-by-wire. According to the multi-mode steer-by-wire device, a second planet gear train and a first planet gear train are arranged on an output shaft of an automobile in sequence; the first planet gear train and the second planet gear train are correspondingly controlled by a motor; and amotor controller and a vehicle controller are arranged to control working modes of the first planet gear train and the second planet gear train. The invention further discloses a control method for the multi-mode steer-by-wire device; by correspondingly controlling the motor and an inner gear ring electromagnetic clutch, four different working modes of a pure mechanical steering mode, an electricpower steering mode, a steer-by-wire mode and an automatic driving mode are switched to; under other three modes except for the pure mechanical steering mode, a main shaft can be locked under the action of an electromagnetic brake when one motor is invalid; and meanwhile, another motor is started to be used as a power source; when the two motors are simultaneously invalid, the multi-mode steer-by-wire device automatically enters the pure mechanical steering mode without being additionally controlled; and therefore, the steering reliability is furthest guaranteed.

The invention provides an integrated power source for providing power for a diesel locomotive auxiliary transmission system and a train. The integrated power source comprises a main generator and an AC-DC main rectifying circuit. The DC output component of the AC-DC main rectifying circuit provides power for a traction motor through a traction circuit switch and a traction inversion module. The DC output component of the AC-DC main rectifying circuit provides power for the diesel locomotive auxiliary transmission system and the train through a DC-DC chopping set-down module, a DC-AC inversion module, an isolation transformer and an AC-DC auxiliary rectifying module in sequence. Neither extra auxiliary generator nor diesel generating set for power supply is needed, the weight of a shaft is reduced, and space is saved. The number of current transformer components is reduced, cost is reduced, and system reliability is improved. Feedback power of resistance braking can be utilized, and the total power of a locomotive can be freely distributed to the traction power, the auxiliary power and the train power supply power. When the traction power does not need to be output, input of the traction inverter can be cut off, and reliability and safety are improved.

The invention discloses a self-adaptive flight adsorption-type wall-climbing robot. The self-adaptive flight adsorption-type wall-climbing robot comprises an installation support, a plurality of rotor wing mechanisms and a wireless control module, wherein a first adsorption mechanism is arranged below each rotor wing mechanism, the side edge of the installation support is also connected with a second adsorption mechanism thorough a connecting mechanism, a rotating mechanism is also arranged in the second adsorption mechanism, the rotating mechanism is used for changing the orientation of an adsorption surface of the second adsorption mechanism, the wireless control module is also connected with the first adsorption mechanism and the second adsorption mechanism and used for controlling the adsorption state of the first adsorption mechanism and the second adsorption mechanism. The self-adaptive flight adsorption-type wall-climbing robot has beneficial effects that the flight state, the wall-climbing state and the rest state can be freely switched; different space wall surfaces can be satisfied, and the stability is high; the mobility is high, the power consumption is low, and the robot can move freely by abutting the wall; the application range is wide, and the application prospect is good.

A comprehensive energy-charging long-distance all-electric ship with a storage battery is disclosed, comprising a ship body, a console and an electric propulsion device at stern, a battery pack is mounted at the bottom of the ship body, the console is respectively connected with the storage battery and the electric propulsion device via cables, the storage battery is connected with a charger via the console, a solar panel and a wind power generator are mounted on the top of the ship body and are respectively connected with the storage battery via the console; a thermoelectric generating set or a fuel battery is connected with a distribution board having a rectifier, the distribution board is connected with the console and the battery pack. The device can utilize a plurality of comprehensive energies like fuel oil, fuel gas, wind energy, light energy and shore power to form a ship electric station with the storage battery centered in a charging way in order to take the place of mechanical propelling and realize full-power propelling, can meet the demands of long-distance transportation, and has the advantages of high comfort, simple and accurate operation, convenient management, less workload of maintenance, environmental protection, energy conservation, high endurance, high reliability and price performance, optimized spatial arrangement, fast reaction and great mobility and flexibility.

The invention discloses an automobile intelligent drive-by-wire chassis system and an uncertainty optimization method thereof. The automobile intelligent drive-by-wire chassis system comprises a drive-by-wire steering subsystem, a drive-by-wire braking subsystem, a drive-by-wire driving subsystem and a drive-by-wire chassis domain controller. The drive-by-wire driving subsystem comprises four electric wheels and four hub motors; each hub motor is installed in the corresponding electric wheel and drives the electric wheel to work. The steer-by-wire subsystem comprises a first steering motor assembly, a second steering motor assembly, a gear rack steering gear, a steering trapezoid and a lower steering column; the brake-by-wire subsystem comprises an executing mechanism and a brake motor assembly. The executing mechanism comprises brake calipers, a transmission device and a brake disc. The drive-by-wire chassis domain controller is used for generating a control instruction of each motor;the drive-by-wire steering, drive-by-wire braking and drive-by-wire driving functions are fused, the chassis structure is simplified, chassis light weight and arrangement space optimization are facilitated, the chassis integration degree is improved, and integrated control is facilitated.

The invention discloses a comprehensive pipe rack system with a sponge urban function. Rainwater inspection wells are arranged above a rainwater cabin; rainwater enter the rainwater cabin through rainwater inlets; people enter the rainwater cabin through the rainwater inspection wells to dredge; an initial rainwater cabin is arranged under the rainwater cabin; the rainwater cabin is connected with the initial rainwater cabin through a plurality of communication holes; a clean water cabin is arranged under the initial rainwater cabin; the rainwater cabin is connected with the clean water cabin through a purification treatment device; a clean water lifting pump is arranged at the tail end of the clean water cabin, and is connected with a sprinkler head on the ground through a reclaimed water pipe; a fuel gas cabin is arranged above the clean water cabin; an inspector hole is formed on a clapboard between the clean water cabin and the fuel gas cabin; a waste water lifting pump is arranged at the tail end of the initial rainwater cabin, and is connected with a sewage pipe arranged at one side in a comprehensive cabin through a waste water pipe; electric power pipes, communication pipes, a water supply pipe and the sewage pipe are also arranged in the comprehensive cabin. The comprehensive pipe rack system with the sponge urban function provided by the invention has the functions of seepage, stagnation, storage, purification, application and drainage, and is strong in practicability, and easy to popularize and use.

The invention discloses a method for preparing a graphene nano-composite energetic material through an atomic-layer deposition technology. The method includes the steps that graphene loaded nanometer metal compound powder is prepared through an ultrasonic-assisted solution mixing and in-situ reduction method, so that even scattering of nanometer metal on the surface of graphene is achieved; and then, the gas-phase atomic-layer deposition technology is adopted, two different precursors pass through a reaction cavity alternately, the precursors make contact with the surface of the graphene / nanometer metal compound powder fully, a chemical reaction is set off, and oxides are generated. By means of the method, the oxides wrap the graphene surface and the nanometer metal surface evenly. According to the graphene nano-composite energetic material prepared through the method, the affinity between the oxides and the nanometer metal surface is increased, and spatial arrangement is improved. Due to the addition of the graphene, the scattering situation of the nanometer metal is improved, and the energy release rate of the energetic material is increased. The method is high in automation degree and good in safety, the material can be directly used without after-treatment, and mass production of the graphene nano-composite energetic material is achieved easily.

The invention discloses a double coupling mode hybrid electromechanical coupling device, which comprises a gearbox body, an input shaft, an output shaft, a middle shaft and a reversing shaft which are arranged in the gearbox body, and change gear drive units among the input shaft, the output shaft, the middle shaft and the reversing shaft. The double coupling mode hybrid electromechanical coupling device is characterized in that a two-way output electric generator / motor is arranged in the gearbox body, one end of the output shaft of the two-way output electric generator / motor is connected with a first engaging and disengaging gear, the output shaft of the first engaging and disengaging gear and the input shaft or the middle shaft of the gearbox are formed into a transmission coupling chain through a driving device, the other end of the output axle of the two-way output electric generator / motor is connected with a second engaging and disengaging gear, and the output shaft of the second engaging and disengaging gear and the output shaft of the gearbox are formed into a transmission coupling chain through the driving device. The double coupling mode hybrid electromechanical coupling device adopts the engaging and disengaging gear with simple structure to realize the coupling of the device with the input shaft or the middle shaft of the gearbox or with the output shaft of the gearbox, and can realize the switching among various operating conditions, among the sizes of transmitting energy of each operating condition mode, and among operating condition modes according to the requirements. The device has the advantages that the structure is simple and compact, the volume is small, the spatial arrangement is convenient, and the cost is low.

The invention discloses a dual-clutch structure which is used for solving the problems that the processing process of a main hub is complex, the assembling quality is difficult to guarantee and the structure is not compact. The dual-clutch structure comprises an input shaft, a clutch front cover, a main hub, an outer clutch, an inner clutch, an output shaft I and an output shaft II, wherein one end of the improved input shaft is connected to an engine shaft, while the other end of the input end is connected to the clutch front cover; the clutch front cover is assembled with an outer clutch element; the main hub is in an integral structure and is sleeved outside the output shaft II by means of clearance fit; the outer and inner clutches are arranged on the corresponding elements of the main hub; the output shaft I is assembled with the outer clutch element; and the output shaft II is assembled with an inner clutch element. As the main hub of the double clutches is designed to be in the integral structure, the number of the main hub parts and the manufacturing cost of the double clutches are reduced, the working performance of the double clutches is guaranteed, and the axial sizes of the double clutches are reduced, thereby being beneficial for the space distribution of the integral car.

The invention discloses a method for high-density layered fruit bearing for grape cultivation in south, which includes shed erecting, planting and field management. Field management includes fertilizer application, water control, trimming, fruit bagging and disease and pest control. Shed design and erection, planting and trimming in field management are changed in the method, rain-shading culturetrellis sheds shaped as the Chinese word 'feng'(for being abundant) are used, planting density is high, plant and row spacing is 50-70cmX280-320cm, and 340-380 grape plants per mu are planted. The trimming includes trimming in growth period, shaping or trimming in winter, bearing shoot renewing and trimming in summer. By using the rain-shading culture trellis sheds and a branch top trimming technique used with the sheds, group amount and individual distribution in grape planting are optimized, quantity ratio and spatial distribution of branches, leaves and fruits are optimized, intensive utilization of heat, light, fertilizer and water is achieved, cost reduction, efficiency enhancement, rapid growth and high yield can be achieved, fruits can occur in the very year of field planting, highyield level is achieved in the next year, and yield per unit area is above 2000kg.

The invention relates to an electric vehicle diving mechanism and a shift and speed variation method thereof. The driving mechanism consists of a motor and a non-reverse gear transmission. The non- -reverse gear transmission comprises an input shaft, an output shaft, a plurality of gear groups and a speed variation actuating device. A drive gear of each gear group is arranged on the input shaft and a driven gear of each gear group is arranged on the output shaft. The speed variation actuating device is used for reversing a gear or engaging a gear, among which, the motor is connected with the input shaft of the non-reverse gear transmission. The driving mechanism also includes a control device which is electrically connected with the motor and the speed variation actuating device to control the electricity as well as the size and direction of input voltage of the motor and also control the speed variation actuating device to carry out gear reversing and gear engaging. The driving mechanism not only raises vehicle running speed in a large extent due to the easiness and convenience in speed variation, but also saves a clutch, and thus the spatial arrangement of entire mechanism is simple with light weight. At the same time, power loss in power transfer is avoided.

An openable dual-board case for multi-mainboard system includes a rectangular tubular body assembled from two bent plates connected together via a pivoting structure, so that the two bent plates are pivotally turnably about the pivoting structure relative to each other to open or close the tubular body. With the openable tubular body, necessary system assembling, dismounting, maintaining, and repairing can be conveniently and efficiently performed. Moreover, two mainboards may be separately mounted on two opposite interiors of the bent plates to face toward each other. Therefore, the openable dual-board case allows a multi-mainboard system to have optimal spatial arrangement to achieve best heat-dissipation efficiency and largely reduce noises.

The invention discloses an infrared temperature measurement and variable emittance based laser welding safety control method and system. The method is that the temperature of a welding point of a welded object is detected based on the infrared temperature during laser welding, thus controlling a laser to work based on the feedback result. The method is characterized in that the intensity of reflected light at the welding point of the welded object is detected and compared with the brazing emitting light intensity threshold so as to determine whether a brazing filler metal of the welding pointreaches a melting point; the corresponding emittance constant is selected for infrared temperature detection under different states. According to the method, the state of the welded point is analyzedand determined to realize variable emittance control of an infrared temperature sensor; different emittance is adopted for infrared temperature detection based on different state of the welding point.Therefore, the problem that the temperature of the welding point cannot be accurately detected in the prior art can be solved, and the working state of the laser can be controlled; the system is integrated, so that the space layout of the system is reasonably performed; the space for equipment is small; the state of the welding point can be accurately controlled; and moreover, the constant-temperature control in the laser welding process can be realized.

The invention relates to a road-passing railcar comprising vertical channels and a horizontal channel, wherein the bottom of the horizontal channel is laid with a rail, the two neighboring vertical channels are connected through the horizontal channel, a carriage is moved up and down in the vertical channels by an elevating mechanism, can be moved in the horizontal channel in parallel by a car body with rail wheels and passes through the horizontal channel from one vertical channel to next vertical channel, the whole walking process is continuous, and a guiding mechanism is arranged between the carriage and the vertical channels. The road-passing railcar is provided with two opposite straightway gates on the carriage so that pedestrians can simultaneously get on or off the car in the same direction, for example, the road-passing railcar passes through a highroad, the pedestrians enter the carriage from a sidewalk, the carriage is elevated to a fixed position by the elevating mechanism after being closed, the car body carries the carriage to run to the other sidewalk along the rail, and then the carriage is elevated to the height of the sidewalk by the elevating mechanism so that the coming and going pedestrians enter the carriage in the same direction when getting out of the carriage, and then next-time circulation is repeatedly carried out.

The invention discloses a low current electric arc magnetic blow-out device and an arc-blowing method of a medium-pressure direct current breaker. According to the device, a V-shaped arc extinguish chamber grid sheet is adopted, a magnet exciting coil is arranged on the side surface of an arc extinguish chamber shell, which is parallel to the grid sheet, the magnet exciting coil is externally connected with a low current detecting and judging system, and a piece of Y-shaped magnetism enhancing armature iron is arranged at each of the two sides of the arc extinguish chamber shell, which correspond to the regions of movable and fixed contacts and an arc running channel. According to the magnetic blow-out device, the magnetic fields of the regions of the contacts and the arc running channel are effectively enhanced, thereby playing obvious effects on the facts that lower current electric arcs in the contact region can fast enter the grid sheet, the electric arcs can be broken successfully, and the fault probability of the device can be reduced. In addition, the device is compact in structure, can reasonably utilize optimizable breaker spatial layout and results in the reduction of the volume.

The invention belongs to a vehicle transmission, and provides a vehicle hybrid power system achieving multi-power-source coupling. The problems that as for an existing hybrid power system, a motor isexcessively large in torque and excessively low in rotating sped, and thus the system is large in size, large in weight and high in cost are solved. The vehicle hybrid power system comprises an engine, a first motor, a second motor, a speed reducer and an output flange disc; the speed reducer comprises a speed reducer box, an input shaft and an output shaft, and further comprises a one-way clutch,a planetary gear train, a first motor gear pair and a second motor gear pair which are arranged in the speed reducer box; the planetary gear train comprises a sun gear, a planetary frame, a gear ringand planetary gears; one end of the input shaft is arranged on the speed reducer box and connected with engine output, and the other end of the input shaft is arranged on the gear ring; one end of the output shaft is fixedly connected with the gear ring, the other end of the output shaft is fixedly connected with the output flange disc, and outer teeth of each planetary gear are engaged with inner teeth of the gear ring and outer teeth of the sun gear correspondingly; and a first motor passive gear is arranged on the outer side face of the gear ring, and a second motor passive gear is coaxially and fixedly connected with the sun gear.