121 results about "Burnout" patented technology

The invention discloses a transmission shaft component stall self-locking mechanism applied to a wind generating set and relates to the technical field of new energy. The transmission shaft componentstall self-locking mechanism comprises an installation bottom plate. A transmission shaft is movably connected to the front face of the installation bottom plate. A main guide body is fixedly connected to the outer side of the transmission shaft. A positioning ring is fixedly connected to the outer side of the transmission shaft. An auxiliary guide body is arranged in the positioning ring. By means of the transmission shaft component stall self-locking mechanism applied to the wind generating set, the problem that the inner temperature is increased due to the stall of the wind generating set can be prevented, burnout of structures in the unit is avoided, and normal use of the equipment is ensured. Meanwhile, the fire breakout problem caused by the too high temperature of power generation equipment is eradicated fundamentally, and the use safety of the equipment is greatly ensured. In addition, safety of an installation user can be improved, the problem of equipment collapse possibly caused by the too high rotating speed is prevented, equipment burnout is avoided, potential safety hazards are also eliminated, and the transmission shaft component stall self-locking mechanism better meets practical use requirements.

The invention discloses an electromagnetic lock control device, an electromagnetic lock and a control method thereof. The device comprises a driving unit (104), an electromagnetic induction unit (106) and a fault detecting unit (108), wherein the fault detecting unit (108) is used for obtaining a first feedback signal based on burnout of the electromagnetic induction unit (106) before electrifying the driving unit (104); the driving unit (104) is used for outputting a driving signal to the electromagnetic induction unit (106) when the electromagnetic induction unit (106) is not burnt out and is normal; and the electromagnetic induction unit (106) is used for realizing locking and/or unlocking of the electromagnetic lock under driving of the driving signal. The device can overcome the defects of weak protection strength, inconvenience for use and weak reliability in the prior art, and realizes the beneficial effects of high protection strength, convenience for use and high reliability.

The invention is suitable for the field of motors, and discloses an oil bearing pressure plate, an oil bearing end cover assembly and a motor. The oil bearing pressure plate comprises an annular substrate and a plurality of convex claw plates, wherein the plurality of convex claw plates extend upwards along the inner edge of the annular substrate; the claw plates are stepped bending plates; each claw plate comprises a transitional connection plate and a resisting plate; each transitional connection plate is tipsily bent upwards to extend along the inner edge of the annular substrate; and each resisting plate is bent upwards to extend along the end part, far away from the annular substrate, of each transitional connection plate and is used for being in resisting fit with an oil bearing. The claw plates are designed into the form of the stepped bending plates; and through weighted equivalent deformation of the transitional connection plates and the resisting plates, the contact angle between each resisting plate and the oil bearing can be effectively increased, so that the oil bearing can be automatically aligned under the condition that the motor deviates from the center due to the action of external force; the phenomena of sticking and burnout of the motor are avoided; the service life of the motor is ensured; the oil bearing pressure plate is low in improvement cost, and easy to realize; and noise of the motor is not increased.

The invention relates to the technical field of new energy vehicles, and discloses a power-off heat dissipation function. The new energy vehicle charging gun head comprises a gun body, a baffle, a first electric wire and a second electric wire, a sliding groove is formed in the side wall of the gun body, a spring is fixedly connected to the left end of the sliding groove, and a sliding plate is fixedly connected to the right end of the spring. The sliding groove and a vent hole are formed in the side wall of the gun body; the spring, the sliding plate, a magnetic plug and an electromagnetic block are arranged in the sliding groove, the baffle is arranged on the bottom side in the gun body, a thermistor is arranged on the baffle, and the magnetic force of the electromagnetic block is controlled through heat generated by long-time charging of the charging gun head under the action of the thermistor; the magnetic repulsive force of the electromagnetic block to the magnetic plug drives the magnetic plug to move to drive the sliding plate and the second wire to move, the second wire and the first wire are disconnected and powered off, and burnout of parts such as wires or electric fire caused by continuous charging due to too high temperature in the gun body is avoided.

The invention discloses a diesel engine oil change detection system and an oil change detection method. The oil change detection system comprises a diesel engine. An engine oil drain pipe is connected to the diesel engine. A clamping groove connector is connected to the engine oil drain pipe. The oil change detection system further comprises a clamping groove connector seat matched with the clamping groove connector. A sensor is arranged on the clamping groove connector seat. An automobile automatic test system is connected to the sensor. A counter is connected to the automobile automatic test system. A controller is connected to the automobile automatic test system. An output device is connected to the controller. The oil change detection method comprises the steps that during oil change, the starting time of the next time of engine oil change is generated, work time of the diesel engine is collected, comparison is conducted, and an oil change signal is sent. Through the diesel engine oil change detection system and the oil change detection method, the diesel engine oil can be changed accurately in time, abrasion of the diesel engine is reduced, and burnout of the diesel engine is avoided.

The invention discloses an air conditioning system. The air conditioning system comprises a compressor and a main control board, wherein the compressor is provided with a compressor coil; and the maincontrol board is configured to judge whether compressor coil heating is started or not, if so, the temperature rise delta T of the compressor coil during initial heating and after the heating time tis met is acquired, and a thermal protection step is executed, specifically, whether compressor coil heating is stopped or not is judged according to the temperature rise delta T. According to the airconditioning system, the compressor is subjected to thermal protection by acquiring the temperature rise of the compressor coil, and thus a series of problems including rotor demagnetization, compressor stator coil burnout, lubricating oil deterioration and the like caused by overheating of the compressor coil are avoided.

The invention provides an automobile startup control box based on SCM (Single chip Microcomputer) control. According to the automobile startup control box based on SCM control, the startup time interval and working time for an engine of an automobile can be artificially set when a driver leaves the automobile, the condition that the engine is automatically started to carry out ignition and flameout under the condition of cold weather can be realized, automobile warming work is carried out through the operation of the engine, and thus, the condition that the engine can be smoothly started up at next trip is guaranteed; the engine is not started with an automobile key and an ignition switch any more and is started by a built-in software program of an SCM through numeric keys of a digital keyboard and a function keyboard, so that scientific and reasonable startup process control is realized, a starter is protected, the working life of the starter is prolonged, the burnout of the starter caused by too long power-on time resulting from the mechanical failure of the ignition switch is avoided; meanwhile, the control box has an anti-theft function; the control box provided by the invention can also be used for alarming the abnormal work of the starter, and the driver is prompted to carry out operation timely, so as to avoid the accidental burnout of the starter; the control box provided by the invention is scientific and reasonable in structure and simple in operation.

The invention discloses a mixed-flow pump with a clutch protection structure. The mixed-flow pump with the clutch protection structure comprises a base and a motor; a pump body shell is fixedly installed on the base, a rotation shaft is inserted into the middle of the right side of the pump body shell, an impeller base is fixedly welded to one end of the rotation shaft, an impeller shaft is fixedly welded to the middle of the other side of the impeller base, and impeller blades are evenly inserted into the outer side of the impeller shaft; and the outer side of the other end of the rotation shaft is sleeved with a connecting sleeve, a first transmission shaft is fixedly welded to the other end of the connecting sleeve, an adjusting sleeve is fixed to the outer side of the first transmission shaft through a bearing, and the outer side of the adjusting sleeve is sleeved with a clutch shell. According to the mixed-flow pump with the clutch protection structure, transmission is achieved through rough friction connection between a friction disc and a drive disc, when the interior of the pump body shell is jammed, the drive disc can overcome the friction force at the joint of the drive disc and the friction disc to slowly rotate, the pump body damage degree is effectively reduced, motor burnout is prevented, and the working safety of the device is improved.

The invention discloses a supercharger protection control system, relates to engine supercharger protection, and mainly solves the technical problem that a bearing is burnt out due to insufficient oilsupply of an impeller of a supercharger. The supercharger protection control system comprises a main oil way for connecting an engine oil bottom shell with a turbocharger, and a first engine oil pumpand a first one-way valve are sequentially arranged on the main oil way from the engine oil bottom shell to the turbocharger; the supercharger protection control system is further comprises an auxiliary oil way for connecting the engine oil bottom shell with the turbocharger, a protection oil way for being connected with the auxiliary oil way in parallel, a pressure sensor for detecting oil pressure of the input end of the turbocharger, a rotating speed sensor for detecting the rotating speed of an engine and a controller; and a second engine oil pump and a second one-way valve are sequentially arranged on the auxiliary oil way from the engine oil bottom shell to the turbocharger, and the controller is electrically connected with the pressure sensor, the rotating speed sensor and the second engine oil pump. According to the supercharger protection control system, bearing burnout faults of the supercharger can be avoided.

The invention discloses a method for determining the whole vehicle resistance of an off-road vehicle. The method comprises the steps that 1, the driving working condition of the off-road vehicle to beanalyzed is obtained; 2, effective resistance in rolling resistance, air resistance and slope resistance of the off-road vehicle to be analyzed is obtained based on the driving working condition; and3, the whole vehicle resistance under the driving working condition is determined according to the obtained effective resistance. According to the method, the resistance model of the whole vehicle under the conditions of a flat road and different slopes and the evaluation method are established, the resistance model of the whole vehicle can be accurately evaluated, and then the braking power requirement of the electric driving system of the vehicle under the maximum braking speed of a mine is evaluated according to the resistance of the whole vehicle under the downhill running working condition. The method can effectively solve the problem of inaccurate selection of the braking power of the electric driving system of the mining vehicle, so that the frequent use of mechanical braking of the whole vehicle can be avoided, and the burnout of the mechanical braking of the whole vehicle and even the safety risk of the whole vehicle are reduced.

The invention relates to the technical field of engines, in particular to an explosion-proof engine start protection circuit and a control method thereof. The explosion-proof engine start protection circuit comprises four sets of circuits connected to two ends of a power supply in parallel: a first circuit, a second circuit, a third circuit and a fourth circuit; through adding of control to a machine oil pressure switch P and a time relay KA14, after an engine is successfully started, the power failure of a motor M is immediately controlled through machine oil pressure signals; and if the engine cannot be successfully started, the power failure of the motor is controlled through time set by the time relay KA14, so that the heating burnout phenomenon in motor starting caused by longer motorstarting operation time can be prevented.

The invention relates to a motor stalling protection device and a drive-by-wire hydraulic braking system comprising the motor stalling protection device, and belongs to the technical field of vehicles. The motor stalling protection device comprises an input shaft, a driving disc, an output shaft, a driven disc, a shell and a magnet exciting coil, the input shaft is fixedly connected with the driving disc, and the output shaft is fixedly connected with the driven disc; the input shaft and the output shaft penetrate through the shell, the driving disc and the driven disc are arranged in the shell, and the driving disc does not make contact with the driven disc. A cavity is formed among the shell, the driving disc and the driven disc, and magnetorheological fluid is arranged in the cavity; and the magnet exciting coil is arranged in the shell. By the adoption of the method, the risk of high-temperature burnout of the motor can be effectively reduced, and the reliability of the drive-by-wire hydraulic braking system is improved.

The invention relates to the field of engines, in particular to a diesel particulate filter regeneration method and system and an engine. The diesel particulate filter regeneration method comprises the following steps of determining the mileage difference between the current driving mileage and the mileage corresponding to the last successful regeneration; and determining a regeneration strategy of a diesel particulate filter according to the mileage difference. According to the method, the regeneration strategy of the diesel particulate filter is determined according to the mileage difference, different regeneration strategies can ensure that a special-purpose vehicle can complete regeneration under different working conditions according to different working conditions of the special-purpose vehicle, and the accuracy of regeneration judgment opportunities is improved, so that the regeneration efficiency of the diesel particulate filter is improved, the burnout risk of the diesel particulate filter is reduced, the diagnosis difficulty of the diesel particulate filter is reduced, the unnecessary consumption of engine fuel is reduced, the fuel economy is improved, the aftertreatmentsafety is improved, the service life of the engine and aftertreatment is prolonged, and the reliability of the engine is improved.

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 discloses an automatic partition type arc extinguishing shell for a circuit breaker. The automatic partition type arc extinguishing shell comprises a base, a shell body, a shell cover and a push button, the shell body is fixedly connected to the top of the base, an electricity inlet buckle is fixedly connected to the bottom of the right end of the shell body, and an electricity outlet buckle is fixedly connected to the bottom of the left end of the shell body; and the right end of the electricity outlet buckle is rotatably connected with a brake block through a torsional spring rotating shaft, and the right side of the interior of the shell is fixedly connected with an insulating frame. According to the invention, firstly, an automatic partition type arc extinguishing structure is adopted, insulation partition processing can be carried out between the contacts when the circuit breaker is opened or closed, and the generation of electric arcs when the contacts are opened orclosed is reduced, so that the phenomena of damage to the contacts of the circuit breaker and high-temperature burnout of the contacts of the circuit breaker are reduced; secondly, a combined installation structure is adopted, the installation processing between the shell cover and the shell body is facilitated, and the convenience of the installation and disassembly operation of the circuit breaker is improved, thereby facilitating the early-stage processing and manufacturing and later-stage disassembly and maintenance of the circuit breaker.

An automotive film is made from, 6 to 9 parts of floating aluminum paste, 3 to 8 parts of copolymer solution, 5 to 10 parts of phosphate emulsifier, 1 to 5 parts of lubricant, 3 to 5 parts of maleic anhydride, 6 to 8 parts of methyl phenyl siloxane branched-chain prepolymer, 0.5 to 2 parts of antioxidant CB, 1 to 4 parts of barium-zinc compound stabilizer 4 to 9 parts of polyurethane, 3 to 8 parts of nano-filler, 2 to 8 parts of lauryl sodium sulfate, 7 to 9 parts of plasticizer, 1.5 to 5 parts of polystyrene-polyisobutene-polystyrene block copolymer, and 6 to 12 parts of PVC (polyvinyl chloride). The automotive film is good in adhesive power and strength, preventive for automotive glass burnout, and capable of cooling vehicular interior.

The invention belongs to the technical field of motor fault detection, and discloses an AC motor stalling fault detection system and method, and an information data processing terminal, and the methodcomprises the steps that a zero-crossing chopping upper limit value is adjusted to a maximum value X when a motor is started; after the motor is started, the chopping value is gradually increased, ifthe rotating speed is still K rpm/min when the chopping value is increased to the upper limit value, it is indicated that the motor is likely to be locked, chopping is directly adjusted to the maximum value and continuously output for T1 seconds, and a locked-rotor object is removed through inertia; if the rotating speed still cannot reach the target value after T2 seconds of continuous output, it is judged that the motor stalls; all loads are turned off by the electric appliance after entering protection; and meanwhile, the protection can be recovered only by turning off and then turning on,or the protection can be recovered after power-down and power-on. According to the invention, motor stalling can be rapidly and effectively detected, and the consequence of motor burnout is avoided.A reliable detection means is provided for an electric appliance using the alternating current motor, and the safety coefficient of the system is improved through the means.

The invention belongs to the technical field of machine tools and relates to a headstock, in particular to a motor embedded type headstock which comprises a headstock body with a mounting hole and a main shaft arranged in the mounting hole. In the mounting hole, the outside of the main shaft is sleeved with a motor rotor, the motor rotor is sleeved with a motor stator provided with a motor coil, the upper end of one side of the headstock body is provided with an installation hole, and the installation hole is provided with a temperature sensor used for monitoring the temperature in the headstock body. A machined product is good in smoothness, high in size precision and high in working efficiency; an encoder is used for feeding back the rotating speed of the main shaft, so that the rotatingspeed of the main shaft can be accurately mastered and controlled, and the machining stability and the transmission precision are improved; and a temperature and current monitoring device monitors the headstock, and an air cooling or water cooling device can quickly dissipate heat of the headstock, so that the conditions of bearing pretightening failure and electric spindle motor burnout caused by overhigh temperature are avoided, and the service life of the headstock is prolonged.

The invention provides a load switch. The load switch is characterized by comprising a motor-driven reduction gear assembly (200), a moving contact assembly (400), an operation assembly (300), a static contact assembly (500), at least one connecting rod (600) and an arc extinguishing device, wherein the operation assembly (300) and the static contact assembly (500) are rotatably connected with themotor-driven reduction gear assembly (200) and the moving contact assembly (400) respectively; the moving contact assembly (400) can rotate around a shaft (800), and when the motor drives the reduction gear assembly (200) to drive the moving contact assembly (400) to rotate through the operation assembly (300) and the connecting rod (600), a moving contact (420) on the moving contact assembly (400) is connected with or disconnected from the static contact assembly (500).According to the invention, rapid and reliable contact of the switch contact can be realized, and contact burnout and melting caused by arc discharge are avoided.

The invention relates to the technical field of cooling fans, and discloses a variable frequency motor cooling fan capable of preventing motor burnout. The variable frequency motor cooling fan comprises a shell, a support column, a mounting block, fan blades and a protection assembly; the inner wall of the shell is fixedly connected with the support column; the outer wall of the mounting block is fixedly connected with the support column; the right side of the mounting block is movably connected with the protection assembly; and the fan blades are movably connected with the right side of the protection assembly. According to the variable frequency motor cooling fan capable of preventing motor burnout and a method provided by the invention, when a driving motor normally stops running and gradually decelerates until the driving motor stops running, an output shaft of the driving motor rotates reversely to enable a ball to enter a chute from an annular groove, so that an inner column moves leftwards, and a convex block is separated from a special-shaped block, therefore, the driving motor is protected, when the fan blades are blocked, an inner rod is blocked, at the moment, a connecting sleeve still bears rotating force from the driving motor, then the connecting sleeve overcomes the acting force of a jacking spring and continues to rotate, and the driving motor is prevented from being overloaded and burnt due to the fact that the fan blades are blocked.

The invention provides a diesel vehicle DPF pre-diagnosis system and method, and relates to the technical field of DPF pre-diagnosis. The diesel vehicle DPF pre-diagnosis system comprises a remote vehicle-mounted terminal, a vehicle networking cloud platform, a mobile terminal, an ECU and a WEB terminal, the vehicle networking cloud platform communicates with the mobile terminal through TCP/IP, the WEB terminal communicates with the vehicle networking cloud platform through TCP/IP, the vehicle networking cloud platform communicates with the remote vehicle-mounted terminal through 4G/5G, and the ECU communicates with the remote vehicle-mounted terminal through CAN. According to the diesel vehicle DPF pre-diagnosis system and the method, oil consumption and emission deterioration caused by large-degree blockage of the DPF can be avoided, DPF burnout or corresponding serious faults caused by DPF blockage and OBD fault missing report can be avoided, the consistency of the DPF can be evaluated, DPF batch accidents can be avoided, early warning and driver guidance can be performed in advance, and DPF blockage faults can be avoided.

The invention discloses a stainless steel vibration motor with a recirculating cooling water system. A bearing is embedded into a bearing housing of an end cover; a rotor shaft is arranged in a cylindrical inner shell and is fixed on the bearing and penetrates through the end cover; the tail end of the rotor shaft is fastened with an eccentric block through a key; a spiral channel is arranged in the outer wall of the cylindrical inner shell along a circumferential direction; a stainless steel cylindrical outer shell and the cylindrical inner shell have a seal fit through O-shaped sealing rings; a stainless steel fan housing and a sealing element at the end of the stainless steel cylindrical outer shell have an interference fit and are fastened through bolts; a water inlet pipe is connected to one end of the spiral channel through a water inlet; and a water outlet pipe is connected to the other end of the spiral channel through a water outlet. According to the stainless steel vibration motor, a problem of motor burnout caused by loss of bearing oil in the motor due to inadequate heat dissipation of the existing vibration motor is effectively solved, and meanwhile, a sealing cavity formed by the stainless steel fan housing and the stainless steel fan housing is used, so that the service life of the motor in the high-temperature and corrosive environments can be effectively prolonged.