113results about How to "Reduced risk of burnout" patented technology

The invention discloses a regenerated heat protection self-adaption control method and device for a diesel engine DPF (diesel particulate filter). The method comprehensively considers factors influencing regeneration temperature rise. Under the condition that the regeneration function is not influenced, the optimized design of the regeneration target temperature is conducted so that the reasonableoil-injection quantity can be guaranteed; and meanwhile, the front feed fundamental oil quantity and the closed-loop control amendment oil quantity are reasonably limited. The device comprises a signal collection module, a front feed oil quantity demand module, a closed-loop control module, an instruction conversion module, an oil injection execution module and a self-adaption protecting module.By means of the regenerated heat protection self-adaption control method and device for the diesel engine DPF, the risk that a carrier is burnt to be cracked in the regeneration temperature rise process of the DPF is reduced; and the risk that the regeneration temperature is raised rapidly due to the excessively-high oil injection quantity, so that the DPF carrier is burnt to be cracked is prevented.

The present invention discloses a moisture-proof control cabinet body and a moisture-proof control cabinet and relates to the field of electrical equipment. The moisture-proof control cabinet body comprises a cabinet body, a first moisture-proof assembly and a second moisture-proof assembly. The cabinet body comprises a cabinet door and a fixed member. The fixed member comprises an operation panel capable of setting a button assembly. The first moisture-proof assembly comprises a first humidity sensor and a lifting closure. The first humidity sensor is arranged on the outer side of the cabinet body. The lifting closure is liftably arranged on the inner side of the cabinet door. The second moisture-proof assembly comprises a second humidity sensor and a heating member. The heating member is arranged on the cabinet body. The moisture-proof control cabinet comprises a button assembly, an electrical component assembly and a moisture-proof control cabinet body. The moisture-proof control cabinet body is reasonable in design, simple in structure, easy in maintenance and overhaul, and cost-saving, wherein the moisture-proof purpose can be realized according to actual conditions.

The invention discloses a GCB breaking locking and unlocking system and method of a pumped storage machine set. The system comprises a GCB breaking locking and unlocking judgment module, a GCB breaking loop abnormality judgment and protection module and a GCB breaking locking and unlocking execution module, wherein the GCB breaking locking and unlocking judgment module is used for judging whethera GCB breaking loop is needed to be locked or unlocked or not and sending a GCB breaking loop disconnection or closing command out, the GCB breaking loop abnormality judgment and protection module isused for comprehensively judging whether the GCB breaking locking function and the breaking function are failure not or and taking corresponding safety protection measure, and the GCB breaking lockingand unlocking execution module is used for executing GCB breaking locking and unlocking operation and feeding an on / off state back to the GCB breaking loop abnormality judgment and protection module.By the system, the functions that GCB breaking is locked at a low rotational speed of a back-to-back drag machine and the GCB breaking is unlocked when the machine set reaches a high rotational speedstate or excitation of two machine sets exits due to trip of the back-to-back drag machine can be achieved, and the necessary measure also can be timely taken to protect the safety of equipment whenthe GCB breaking locking function and the breaking function are failure.

Provided is a vehicle laminated glass with low-resistance regions in a heating region. The peripheral edges of an electrothermal film (2) on a glass substrate (1) are provided with edge non-conductive regions. The electrothermal film (2) is provided with an upper bus (3.1) and a lower bus (3.2). The lower bus (3.2) divides the electrothermal film (2) into a primary vision heating region and a windscreen wiper rest position heating region (2.1). The windscreen wiper rest position heating region (2.1) is provided with a plurality of low-resistance regions. Each low-resistance region is formed by a plurality of low-resistance assemblies (7). The resistance of the low-resistance assemblies is smaller than the resistance of the electrothermal film. Technical effects of the glass are that through arranging the low-resistance regions, a problem of nonuniform heating of arc glass is solved, and risks that a windscreen wiper motor is burnt down are reduced. A segment of mesh bus is arranged on the lower bus, heating power distribution positions can be optimized and defrosting and deicing performance is improved.

The invention provides a tool and method for testing the serial port of an electronic product. The tool comprises a master control module, a serial port multiplexing module, an interface module and a storage module, wherein the master control module scans the interface module by virtue of the serial port multiplex module to identify the mode of the tool; the interface module is connected with a PC (personal computer) when the tool is identified to be in a preset mode, the master control module indicates the storage module to mark out an address space, so as to receive test information which is written by the PC and is used for testing the serial port of the electronic product; the interface module is disconnected with the PC when the tool is identified to be in a test mode, the master control module utilizes the test information to test the serial port of the electronic product and stores the test result data into the storage module; and the interface module is connected with the PC when the tool is identified to be in a data query mode, and the master control module sends the test result data stored in the storage module to the PC. The tool provided by the invention has high testing efficiency and is convenient to carry, and the frequency of hot plug of the PC is effectively reduced.

The invention discloses a power transmission module with a self-locking mechanism. The power transmission module comprises an actuator, a reducing mechanism and a driven shaft, wherein the actuator is provided with a driving shaft; a driving gear which coaxially rotates is arranged on the driving shaft; the reducing mechanism comprises a transmission shaft provided with a driven gear and a driving worm respectively; the driven gear is directly meshed with the driving gear or meshed with the driving gear through a reducing gear; the driven shaft is provided with a driven worm meshed with the driving worm; and the meshed part of the driven worm and the driving worm is provided with a worm gear lead angle capable of generating a self-locking effect, so that the driving worm cannot be driven by the driven worm. Compared with the prior art, the power transmission module has a self-locking function, is energy-saving, stable and high in safety, has excellent control stability, and can greatly reduce a danger that the actuator bears high torque and is burnt down.

The invention discloses a probe block and a detector. The detector is used for reducing burning risk of the probe block, and utilization rate of the probe block is increased. The probe block comprises a chip on film and a flexible circuit, the chip on film comprises a plurality of first connecting wires overlapped with circuits in a liquid crystal panel welding plate, and the flexible circuit comprises a plurality of second connecting wires connected with circuits in a signal generator. The probe block further comprises a connector, the connector comprises a plurality of third connecting wires correspondingly connected with one first connecting wire and one second connecting wire, at least one of the third connecting wire is provided with an anti-overload current device arranged on the third connecting wires with high-level input, and the anti-overload current device is used for reducing high level or directly disconnecting the third connecting wires.

The invention provides an automatic capacity expansion and balance battery management system for a lithium battery. The system comprises a master control system and a plurality of battery packs, wherein the plurality of battery packs are connected in series; a slave control unit is arranged in each battery pack, and the slave control units are in communication connection with the master control system; power resistors connected with the batteries in series are arranged in the plurality of battery packs; the plurality of slave control units are provided with a single voltage acquisition line connected with the battery packs to monitor the electric quantity of the batteries and a temperature acquisition line for monitoring the temperature of the battery packs; a resistor temperature detection circuit is arranged on a circuit between the plurality of slave control units and the power resistors, and the resistor temperature detection circuit is used for monitoring the temperature of the power resistors; fans are further arranged in the plurality of battery packs, and the plurality of fans are controlled by the slave control units; and the master control system is provided with buzzingalarm circuits, and the buzzer alarm circuits are used for monitoring the temperature extreme values of the battery packs, and can be used for carrying out controlling and early warning on the heat generated by the battery packs and the power resistors while the battery management system is balanced.

The invention relates to the technical field of electric appliance detection and discloses a preheating switching device for fuse breaking capacity test. The preheating switching device is connected to a large-capacity test system for fuse breaking capacity test, appropriate fuse fusing time is set in a monitoring / operation computer, a test sample (fuse) is mounted, data acquisition of low-voltage current is completed through a shunt by an electrical test data acquisition system, data acquisition of high-voltage current is completed through a Rogowski coil and an integrator by the electrical test data acquisition system, interlocking of a high-voltage breaker and an isolation breaker is realized through a programmable controller, and closing operation of the high-voltage breaker can be started after the isolation breaker is opened. By application of the preheating switching device, the fuse breaking capacity test process is controlled within 30-45 seconds, automatic control is realized, switching time interval of the high-voltage breaker and the isolation breaker is small, test success rate is increased, risk that test equipment is burnt down is lowered, and test cost is lowered.

The invention relates to an entrained flow gasifier device and a gasification method utilizing the device, particularly to an entrained flow gasifier device with four forward and reverse rotating burners and a gasification method, and aims to solve the problems of gasifier water-cooled wall burning loss, low carbon conversion rate and the like caused by unreasonable burner arrangement mode of existing multi-burner entrained flow gasifiers. The entrained flow gasifier device with four forward and reverse rotating burners includes a gasifier body, burners, a water-cooled wall, an igniter burner,a slag tank and a synthesis gas channel. The four burners, i.e. burner B1, burner B2, burner B3 and burner B4 are located on a same horizontal plane, and are evenly distributed along the circumference of the gasifier body in order, the intersection points of center lines and the water-cooled wall surface are C1, C2, C3, and C4 respectively, the center lines of B1 and B2 intersect at point O, andthe center lines of B3 and B4 intersect at point O'; the included angle alpha of C1O and C1C3, and the included angle beta of C2O and C2C4 satisfy that: alpha is greater than 0 and smaller than beta and beta is less than 45 degrees, or beta is greater than 0 and smaller than alpha and alpha is less than 45 degrees. The entrained flow gasifier device provided by the invention is used for the entrained flow gasification field.

The invention discloses an air conditioning system and a control method for the air conditioning system, and belongs to the field of air conditioners. The air conditioning system comprises an indoor heat exchanger, an outdoor heat exchanger, a compressor, a controller and a bypass control pipe, and the bypass control pipe comprises a first solenoid valve, a second solenoid valve, a first pipe, a second pipe and a third pipe; the first end of the first pipe is communicated with the second end of the second pipe through the first solenoid valve, and the second end of the first pipe is communicated with the outdoor heat exchanger and an air suction opening of the compressor; the first end of the second pipe is communicated with an exhaust opening of the compressor; the second end of the second pipe is communicated with the third pipe through the second solenoid valve; and the controller is used for controlling the first solenoid valve and the second solenoid valve according to the air suction superheat degree and the running mode of the air conditioning system. The problems that in the prior art, when the air conditioner heat exchange performance is low, the air suction superheat degree of the compressor is low is solved.

The invention discloses a voltage conversion circuit which comprises a first power transistor, a second power transistor, a first energy storage component, a second energy storage component and a release module, wherein the second power transistor is off when the first power transistor is on and is on when the first power transistor is off; the second energy storage component is used for being coupled with the first and the second power transistors; the release module is used for being coupled with the first power transistor and providing a current patch for a current to flow from the source electrode of the first power transistor to the ground when the first power transistor is off and the voltage at the source electrode of the first power transistor reaches the threshold of the source electrode. Through the way, the voltage difference between the drain electrode and the source electrode of the first power transistor can be reduced, the risk of burning the first power transistor out is reduced, and the increase of manufacturing cost is avoided.

The invention discloses an impeller-type aerator. The impeller-type aerator comprises a frequency conversion controller, a motor, a speed reducer, an impeller, supporting rods and whole-machine floating bodies, wherein the frequency conversion controller, the motor, the speed reducer and the impeller are sequentially connected, the speed reducer is connected with the whole-machine floating bodiesthrough the supporting rods, and the frequency conversion controller converts alternating currents into direct currents to output to the motor. The impeller-type aerator has the advantages that impeller-type aerator is not limited by three-phase electricity, energy and electricity are saved, the aeration effect is good, installation is convenient and rapid, and using is safer.

The invention relates to a driver of a brushless electric machine. The driver of the brushless electric machine comprises a shell body, a control circuit board internally arranged in the shell body, a control output interface formed in the shell body and a power source connecting wire. The control circuit board comprises a power source circuit and an electric machine starting control unit, wherein the electric machine starting control unit comprises a driving circuit and a control single chip microcomputer. The control circuit board further comprises a power type NTC thermistor with negative temperature coefficients, wherein the power type NTC thermistor is connected between the power source circuit and the electric machine starting control unit in series. Therefore, when the brushless electric machine is started, currents are started to pass through the power type NTC thermistor, the power type NTC thermistor restrains the impact (surge) of the currents, only small currents flow into an electric machine winding, damage of devices in the control circuit board is avoided, and the starting of the electric machine is safer. When starting is finished, under the action of the currents, the temperature of the power type NTC thermistor rises, and therefore the resistance value of the power type NTC thermistor is decreased, and the normal currents of the electric machine are not influenced.

The embodiment of the invention provides a motor protection method and device for an electric power steering system, and the method comprises: multiplying a target auxiliary steering torque by a torque gain coefficient, and obtaining a corrected target auxiliary steering torque, wherein the calculation process of the torque gain coefficient comprises the following steps: detecting that the hand torque of a driver for operating a steering wheel is greater than a preset first torque value; and after a period of time, gradually reducing the corrected target auxiliary steering torque by graduallyreducing the torque gain coefficient, so that the current of the motor is not kept at a relatively large value for a long time no matter whether the current is blocked by a hard object or the steeringwheel reaches a tail end area, and the burnout risk of the motor is reduced. Furthermore, a protection method based on a steering wheel angle signal is combined with a protection method based on manual torque, multiple protection of the motor is achieved, and the risk that the motor is burnt out when the steering wheel reaches the tail end area is reduced.

The invention provides an air conditioner, a control method and device thereof and a computer readable storage medium. The air conditioner comprises a first heat exchanger, a radiator, a first throttling component and a processor, wherein the radiator is configured to be suitable for cooling a heat dissipation object; a first branch and a second branch are formed in the air conditioner; the firstbranch is connected with the first heat exchanger and the radiator; the second branch is connected with the first heat exchanger and the radiator; the first throttling component is formed as at leastone part of the second branch; and the processor is configured to be suitable for controlling the on / off of the first branch and the on / off of the second branch respectively. Through the adoption of the air conditioner provided by the scheme, the heat dissipation and cooling temperatures of the heat dissipation object can be flexibly controlled, so that the heat dissipation and cooling requirements of the heat dissipation object are better met, and the heat dissipation efficiency and the anti-condensation requirement of the heat dissipation object are guaranteed at the same time.

The invention discloses a device for detecting the electricity quantity of a quartz watch cell. The device comprises a shell and is characterized in that two regulating ports are formed in the bottomof the outer wall on one side of the shell, a voltage knob and a current knob are respectively rotatably connected to the inner walls of the two regulating ports, two mounting grooves are formed in the top of the outer wall on one side of the shell, a display screen and a first dustproof screen are respectively embedded into the inner walls of the two mounting grooves, telescoping seats are weldedto two sides of the outer wall of the top of the shell, spring wires are welded to the outer walls of the top ends of the two telescoping seats, and a positive-electrode detecting rod and a negative-electrode detecting rod are respectively welded to one ends, away from the telescoping seats, of the two spring wires. The device has the advantages that the voltage knob and the current knob are usedto regulate a detection value range, so that the risk of equipment burnout is reduced; a current and voltage sensor is used to detect currents and voltage, a processor is used for detecting, the display screen is used for displaying, visuality is achieved, a buzzer reminds a user to replace the quartz watch cell when voltage is insufficient, and processor burnout is avoided.

The invention discloses a soft start system and control method suitable for a low dropout linear regulator. The system comprises a ramp voltage generation module which is used for generating a ramp voltage Vramp rising slowly; a voltage selection module which is used for selecting the minimum value Vmin in the ramp voltage Vramp or Vref and outputting the minimum value Vmin; a voltage clamping module which is used for temporarily clamping an output voltage of the comparison module at the initial stage of power-on of the power supply, and limiting an input voltage of the power level through a buffer level so as to restrain a peak current; a comparison module which is used for comparing the minimum value Vmin with the feedback voltage Vfb and adjusting the current of the power level according to a comparison result; and a buffer stage module which is used for providing low-impedance output voltage Vgpower. According to the system, the average current in the starting process can be reduced, meanwhile, short-time peak current appearing on a power tube is restrained, the LDO and a load circuit of the LDO are protected, a problem of electromagnetic interference caused by the peak current is avoided, and meanwhile the risk of circuit burning is reduced.

The invention discloses a scanning method for photo-cured formation metal, alloy and a ceramic component. The scanning method specifically comprises the following steps of: preparing mixed slurry andputting the prepared mixed slurry into photo-curing equipment to form a component blank; subsequently carrying out after treatment on the formed component blank, wherein the scanning strategy used forforming the component blank by the photo-curing equipment comprises the following steps of: carrying out regional scanning on to-be-formed regions, firstly scanning the frame of each region to make sure that the slurry at each edge is preferentially cured, and afterwards carrying out scanning and filling; in a scanning process, repeatedly carrying out scanning for a plurality of times on the sameregion by virtue of an energy density of curing depth required under a condition that the curing depth is not larger than the corresponding layer thickness; and forming a component support part by using an energy density lower than the energy density of a forming component. The scanning method for the photo-cured formation metal, the alloy and the ceramic component, disclosed by the invention, solves the problem that in the prior art, the slurry is burned by heat generated when solid-phase powder absorbs light energy because the solid-phase powder is high in absorptivity to ultraviolet light.

The invention discloses an energy absorption resistor for a power locomotive braking system. The energy absorption resistor comprises an insulating sleeve and a metal rod arranged in the insulating sleeve, and is characterized in that at least one zinc oxide ceramic linear resistor sheet penetrates through an outer periphery of the insulating sleeve, two end part radiators, or two end part radiators and at least one middle radiator further penetrate through the outer periphery of the insulating sleeve, wherein the end part radiators are arranged on outer peripheries of two ends of the insulating sleeve, and the middle radiator is arranged on the middle outer periphery of the insulating sleeve between the two end part radiators; the end part radiators, or the middle radiators as well as the end part radiators and the middle radiator are electrically connected through the zinc oxide ceramic linear resistor sheet; and a connection piece is arranged on two ends of the metal rod to longitudinally and tightly connect the two end part radiators, or the two end part radiators and the middle radiator.

The invention discloses an electric heating particle catcher aftertreatment system for a diesel engine, belongs to the technical field of diesel engine exhaust aftertreatment, and aims to improve reliability and adaptability of the particle catcher aftertreatment system. The electric heating particle catcher aftertreatment system for the diesel engine is composed of a metal electric heating DOC, an electric heating particle catcher, an engine ECU, a storage battery and an alternating current converter; ceramic carriers of the metal electric heating DOC and the electric heating particle catcherare changed into metal carriers; the metal carriers are connected with the alternating current converter and the storage battery correspondingly, can be connected with 220 V alternating current through the alternating current converter or can be directly powered by the storage battery to realize electrified heating so as to realize regeneration of the electric heating particle catcher, and meanwhile, through electrified heating of the metal electric heating DOC and the electric heating particle catcher, SCR front temperature can be increased, the functions of desulfurization and urea crystalremoval can be achieved, and normal running of a vehicle is ensured after sulfur poisoning or urea crystallization blockage of an aftertreatment device occurs.

Provided is a starting circuit for an automobile. The starting circuit for the automobile comprises a storage battery, a battery main switch and a starter, wherein the positive pole of the storage battery is connected with one end of the battery main switch through a power line, the other end of the battery main switch is connected with the positive pole of the starter through a starter positive wire, the negative pole of the starter is connected with the negative pole of the storage battery through a negative bond strap, a bonding piece is arranged on the negative bond strap, the bonding piece is connected with a common bonding point on a frame, the positive pole of the storage battery is connected with the input end of a finished automobile electrical appliance constant-electricity load and the input end of a finished automobile electrical appliance non-constant-electricity load, and the output end of the finished automobile electrical appliance constant-electricity load and the output end of the finished automobile electrical appliance non-constant-electricity load are connected with the common bonding point and other bonding points on the frame through a frame harness respectively. According to the starting circuit for the automobile, the phenomenon that electricity of the starting circuit goes to other circuits by mistake can be effectively prevented, the phenomena that the electricity goes to a frame harness by mistake and a fire breaks out are effectively avoided, safety and reliability are high, and the application range is wide.

The invention discloses a frequency-conversion direct-current aerator. The aerator includes impellers, a floating body, a frequency conversion controller and a motor, wherein the motor is arranged on the floating body, the frequency conversion controller and the motor are sequentially connected, and the motor is connected to the impellers. The frequency-conversion direct-current aerator is characterized in that the frequency conversion controller converts an alternating current into a direct current and then outputs the direct current to the motor. The frequency-conversion direct-current aerator can directly use electric supply without constraint of three-phase electricity, and therefore the aerator has the advantages of being capable of saving more energy and electric power, less in energy consumption, endurable to high temperature, long in service life, convenient to install, and great in aeration and water stirring effects.

The invention discloses an adapter, a charger and an agricultural plant protection machine. The adapter comprises a shell (1), a positive electrode pin (2), a negative electrode pin (3), a plurality of signal pins (4) and a control circuit (5), and the positive electrode pin, the negative electrode pin and the signal pins are arranged at the same side of the shell side by side; the control circuitis arranged in the shell and is electrically connected with the positive contact pin, the negative contact pin and the signal contact pin respectively; the positive electrode pin, the negative electrode pin and the signal pin are used for being simultaneously connected with external equipment in an inserted mode. The plurality of signal pins comprise a first signal pin (41) and a second signal pin (42), the first signal pin and the second signal pin are arranged at an interval, and the length of the first signal pin is smaller than the lengths of the positive electrode pin, the negative electrode pin and other signal pins except the first signal pin; and when the first signal pin detects that the external equipment is in plug connection with the first signal pin, the trigger control circuit controls the adapter to output a power supply so as to supply power to the external equipment or charge the external equipment.

The invention discloses a standing wave detection circuit, which comprises a bidirectional coupling circuit, first and second power attenuators, first and second power dividers, a detector and an amplitude error detection circuit, and is characterized in that the bidirectional coupling circuit is used for coupling power of forward signals and reverse signals, the forward signals are outputted to the first power attenuator after coupling, and the reverse signals are outputted to the second power attenuator; the first power attenuator carries out amplitude adjustment on the received forward signals and the signals are then outputted to the first power divider; the second power attenuator carries out amplitude adjustment on the received reverse signals and the signals are then outputted to the second power divider; the first power divider divides the received signal power into two parts, and the two parts are outputted to the detector and the amplitude error detection circuit respectively; and the second power divider carries out power division on the received signals, and the signals are then outputted to the amplitude error detection circuit. The standing wave detection circuit can be widely applied to various power amplification circuits and wireless communication systems.

The invention discloses a clutch with a good heat dissipation effect. The clutch comprises a shell and a clutch assembly arranged in the shell. The shell is fixedly mounted on an engine shell. The clutch assembly comprises pressing discs, friction pieces, a flywheel and a transmission mechanism. The friction pieces are arranged between the pressing discs and the flywheel, and grooves are formed inthe sides, close to the friction pieces, of the pressing discs. Thrust ball bearings are arranged inside the grooves, one ends of the thrust ball bearings are connected with the side walls of the grooves, and the other ends of the thrust ball bearings are connected with the friction pieces. Annular parts are fixedly connected to the outer ring walls of the friction pieces. An exhaust outlet is formed in the side wall of the bottom of the shell and internally provided with an axial flow fan, and the axial flow fan is in transmission connection with the annular parts. The calorific value of theclutch can be decreased, meanwhile, rapid heat dissipation can further be conducted, and the long-term and stable work of the clutch is guaranteed.

The invention discloses a manual electric soldering bit capable of increasing the welding efficiency of a lead and a bonding pad and improving the welding reliability of the lead and the bonding pad, which relates to a manual electric soldering bit and aims to solve the problem that a circuit board is damaged at high temperature because the preheating and welding time is prolonged by using the traditional electric soldering bit to heat the lead and the bonding pad in a thermal conduction way and the problem of welding point reliability reduction caused by long-time severe interface reaction because of differences of microstructures inside a welding line, which is caused by non-uniform temperature of a part to be welded. The manual electric soldering bit disclosed by the invention has a structure as follows: the middle part of the end of the electric soldering bit is provided with an opening with the length of 3-10mm; the right part of the opening is longer than the left part of the opening; and a welding wire is added in a space formed between the left part of the opening and the plane of the bonding pad in a welding process. The manual electric soldering bit is suitable for the field of welding engineering of electronic devices.