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1561results about How to "Save layout space" patented technology

Fracturing transmission and high-pressure discharging system

The invention relates to a fracturing transmission and high-pressure discharging system. The fracturing transmission and high-pressure discharging system comprises a chassis and is characterized in that a high-power engine, a transfer case, a plurality of variable displacement plunger pumps and a double-acting fracturing pump are arranged on the chassis, the output end of the high-power engine is connected with the input end of the transfer case, the output end of the transfer case comprises a plurality of power take-off ports, and each power take-off port is connected with one variable displacement plunger pump; the variable displacement plunger pumps drive the double-acting fracturing pump through a hydraulic system. The fracturing transmission and high-pressure discharging system further comprises a system radiator and a heat dissipation plunger pump used for driving the system radiator, and the heat dissipation plunger pump is connected with one power take-off port of the transfer case. The power take-off ports of the transfer case and the variable displacement plunger pumps are arranged annularly. The fracturing transmission and high-pressure discharging system has the advantages that hydraulic driving replaces mechanical transmission, and working vibration is reduced; the layout space of a whole vehicle is saved, and meanwhile, operating efficiency and the stability of the whole vehicle are improved.
Owner:YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD

Double-motor skidproof differential drive axle of electric automobile

The invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with theThe invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with the speed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two drivinspeed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two driving motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is conng motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is connected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem oected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem of skidding, a skidproof differential device is also arranged in the speed reducer.f skidding, a skidproof differential device is also arranged in the speed reducer.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Pixel driving circuit

The invention provides a pixel driving circuit. The pixel driving circuit comprises a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor and an organic light-emitting diode, wherein a first end of the first switch receives reference voltage or data voltage; a second end of the first switch receives a first switch signal; a first end of the second switch receives reset voltage; a second end of the second switch is electrically connected with a third end of the second switch; a first end of the third switch receives first voltage; a second end of the third switch receives a third switch signal; a first end of the fourth switch is electrically coupled to the third end of the third switch; a second end of the fourth switch is electrically coupled to the third end of the first switch; a first end of the second capacitor is coupled to a first end of the third switch; and a second end of the second capacitor is coupled to the third end of the fourth switch. According to the pixel driving circuit, the source electrode of the second switch is reset by the method similar to the connecting method of a diode, so that the layout space occupied for maintaining voltage routing in the current design can be eliminated, the aperture opening ratio of an OLED (Organic Light Emitting Diode) is improved, and the service life of the OLED is prolonged.
Owner:AU OPTRONICS CORP

Dual-rotor wheel hub motor for four-wheel drive electric automobile and power transmission method of dual-rotor wheel hub motor

The invention provides a dual-rotor wheel hub motor for a four-wheel drive electric automobile and a power transmission method of the dual-rotor wheel hub motor. The dual-rotor wheel hub motor comprises a planetary gear mechanism and a motor group formed by an inner motor and an outer motor. The motor group and the planetary gear mechanism are connected via a clutch and are arranged in a machine shell. The outer motor is formed by an outer rotor and a stator outer winding, and the inner motor is formed by an inner rotor and a stator inner winding. The planetary gear mechanism is composed of a gear ring, an output shaft, a sun wheel, a planet wheel and a planet carrier. The dual-rotor motor could achieve torque coupling, rotational speed coupling and speed differing by combining with the planetary gear mechanism, so that different vehicle condition requirements could be met under the condition that the motor with relative small power is selected, thereby reducing automobile arrangement space and cost. As the dual-rotor wheel hub motor has a single motor braking mode and a dual-motor braking mode, the braking energy can be effectively recovered, slow braking can be achieved, and the braking stability of the motor is improved.
Owner:JIANGSU UNIV

Integrated control device for pure electric vehicle

The invention discloses an integrated control device for a pure electric vehicle. The integrated control device integrates main control plates of a vehicle control unit and a battery management system on the same circuit board, and has the functions of the vehicle control unit and the battery management system, wherein a microprocessor VBU is the core of the integrated control device, and comprises two independent microcontrollers; two independent power supply chips respectively supply power for the two microcontrollers independently. The two microcontrollers are in communication through an SPI, can mutually detect whether abnormal exist or not, and process the abnormal circumstance in real time, so that the overall system can be kept in a normal operation condition. The integrated control device has the advantages that more space is saved for arrangement of parts of the pure electric vehicle, and more benefits are brought for cost conservation for the whole vehicle; the functions and the safety level necessary for the original vehicle control unit and battery management system are reserved; more input signals can be collected, more output signals can be controlled, and deep level integration of the two functional controllers is realized to the maximum extent.
Owner:BEIJING ELECTRIC VEHICLE

Four-gear mechanical automatic transmission power assembly system based on planetary gear mechanisms

The invention discloses a four-gear mechanical automatic transmission power assembly system based on planetary gear mechanisms. The four-gear mechanical automatic transmission power assembly system comprises an engine, a main clutch, a motor, a first planet row, a second planet row, two engagement devices, three auxiliary clutches, an electromagnetic brake, two brakes, a gear ring, and a transmission input shaft as well as a transmission output shaft; the first planet row, the second planet row and a splined hub are orderly arranged on the transmission input shaft; the splined hub is engaged with an engagement sleeve; and switching of four forward gears, a neutral gear and a reverse gear is realized by means of mutual cooperation of the engagement sleeve, the electromagnetic brake and the clutches. Compared with a traditional mechanical transmission, the four-gear mechanical automatic transmission power assembly system based on the planetary gear mechanisms is provided with no synchronizer, and instead, the motor is adopted for accurate speed regulation to realize smooth gear shifting, and two planetary gear mechanisms are used to take the place of traditional a plurality of pairs of gear mechanism; as a result, the overall mechanism is simple, small in volume, low in cost and easy to manufacture.
Owner:包头北奔重汽桥箱有限公司

Gate drive circuit capable of enhancing circuit drive ability

The invention provides a gate drive circuit capable of enhancing circuit drive ability. The gate drive circuit capable of enhancing the circuit drive ability comprises nine transistors from a first one to a ninth one, wherein a control end of the first transistor is connected with an n-1th level gate drive signal, a second end of the first transistor is electrically connected with first control voltage, a control end of the second transistor is connected with an n+1th level gate drive signal, a first end of the second transistor is connected with second control voltage, a control end of the third transistor is connected with a first clock pulse signal, a second end of the third transistor is connected with a first direct current source, a control end of the forth transistor is connected with a second clock pulse signal, and a first end of the forth transistor is coupled with a second direct current source. Compared with the prior art, the forth transistor is arranged on the gate drive circuit capable of enhancing the circuit drive ability so as to avoid voltage reduction caused by stray capacitance, and furthermore the second direct current source can restrain leakage currents in the transistors, and duration of high potential of nodes is prolonged. Accordingly, large capacitance in the gate drive circuit capable of enhancing the circuit drive ability can be omitted, and the size of a board arrangement space occupied by the gate drive circuit capable of enhancing the circuit drive ability is reduced.
Owner:AU OPTRONICS CORP

Washing machine door lock

The invention provides a washing machine door lock and belongs to the technical field of washing machine door locks. The washing machine door lock comprises a door hook, a lock shell, a rotating piece, an elastic rotating piece restoring piece, a lock catch, a lock matching mechanism and lock catch unlocking mechanism. When a washing machine door is closed, the door hook is inserted into the lock shell, the rotating piece is driven by the door hook, the lock matching mechanism guides the lock catch to move from a lock catch restoration position to a lock catch locking position so as to block on a returning path of the rotating piece, and then the washing machine door is locked. After washing is finished, an electromagnetic driving piece drives the lock catch to move along a direction far away from the lock catch restoration position continuously through the lock catch unlocking mechanism, the lock catch is enabled not to block on the returning path of the rotating piece, the rotating piece returns under an action of the elastic rotating piece restoring piece to enable the door hook to pop out from the lock shell, and then the washing machine door is unlocked. The washing machine door lock has the advantages that the washing machine door can be unlocked through the electromagnetic driving piece, and a handle for pulling the washing machine door no longer needs to be arranged on the outside of a door sheet.
Owner:WENZHOU TIANJIAN ELECTRIC APPLIANCE

Film conveying deviation-rectifying device combining tension control

The invention provide a film conveying deviation-rectifying device combining the tension control, which comprises a film input guiding roller, an output guiding roller, a deflection detecting mechanism, a tension detecting mechanism, a controller and a deviation-rectifying actuating mechanism, wherein the film input guiding roller and the output guiding roller are used for inputting a film guide into the deviation-rectifying actuating mechanism and outputting the film guide from the deviation-rectifying actuating mechanism; the deflection detecting mechanism is used for detecting whether the film deflects or not; the tension detecting mechanism is used for detecting the film tension; the controller is used for generating deviation-rectification or/and tension control instruction as per the detection information; the deviation-rectifying actuating mechanism comprises a spherical motor, a deflection frame and a deviation-rectification roller; a runner of the spherical motor drives the deflection frame to rotate on a feeding surface of the film; the friction between the rectification roller and the film drives the inverse rotation of the film to realize the deviation-rectification; meanwhile, the runner of the spherical motor drives the deflection frame to rotate on the surface vertical to the feeding surface of the film, so as to tighten or loose the film to realize the tension control. According to the invention, the deviation-rectification and the tension control of the film can be realized simultaneously, the influence of the tension variation on the deviation-rectification is greatly reduced, the structure is simple, and the deviation-rectifying precision is high.
Owner:HUAZHONG UNIV OF SCI & TECH

Integrated comprehensive heat management system for electric automobile

The invention relates to an integrated comprehensive heat management system for an electric automobile. The integrated comprehensive heat management system comprises a power battery pack temperature equalization loop, a power battery pack normal temperature cooling loop, a power battery pack air conditioner refrigeration circuit, a power battery pack heating loop, an occupant cabin air conditionerrefrigeration circuit, an occupant cabin heating loop and an electric drive module cooling loop; and the power battery pack normal temperature cooling circuit, the power battery pack air conditionerrefrigeration circuit, the electric drive module cooling circuit and the occupant cabin air conditioner refrigeration circuit share a radiator for heat exchange, an inlet side pipeline of the radiatoris connected with an outlet side pipeline of an electric drive module through a three-way valve, and an outlet side pipeline of the radiator is connected with the power battery pack normal temperature cooling circuit or the electric drive module cooling circuit through a first through valve. According to the integrated comprehensive heat management system, compared with the prior art, through thedesign of the integrated optimized heat management loop, a condenser of the air conditioning system is eliminated, the number of front-end module radiators is reduced, the arrangement space is saved,and the system has the advantages of cost reduction, weight reduction and energy consumption reduction.
Owner:SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD

Measuring method, measuring circuit and monitoring apparatus

The invention provides a measuring method, a measuring circuit and a monitoring apparatus. The measuring method is used for measuring a resistance value of a resistor element or a capacitance value of a capacitor; one end of the resistor element is connected with a charging power source; the other end of the resistor element is respectively connected with one end of the capacitor and a controller; and the other end of the capacitor is grounded. The measuring method comprises the following steps that: the controller controls the capacitor to carry out charging; when charging of the capacitor is started, a timer is started to carry out timing; the controller detects whether the input voltage of the capacitor reaches a preset first voltage threshold value; if so, the timing of the timer is stopped so as to obtain charging time of the capacitor; and according to the charging time, the preset first voltage threshold value, and the voltage value of the charging power source, the resistance value of the resistor element or the capacitance of the capacitor is calculated. The provided measuring method is suitable for a digital circuit; measurement of the resistance value of the resistor element or the capacitance of the capacitor can be completed without an analog-digital converter, so that the manufacturing cost of the measuring circuit can be effectively saved.
Owner:ZTE CORP
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