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35results about How to "Reduce burn out" patented technology
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Nozzle for minisize gas-turbine combustor
ActiveCN101206029ACompact structureGood atomization qualityBurnersContinuous combustion chamberPollutantCombustion chamber
The invention discloses a nozzle of a combustion chamber of a miniature gas turbine, relates to the gas turbine technology, and in particular to a small size fluid fuel nozzle used in a combustion chamber of a 100 kW level miniature gas turbine. The nozzle consists of three parts which are a fuel oil passage, a fuel air passage and an air channel at the root of a burner, comprehensively utilizes the advantages of pneumatic nebulization and pressure atomization, and is a combined type high performance pneumatic atomizing nozzle. The nozzle of the invention has the characteristics that: the nozzle adopts a conventional processing method to realize excellent atomization of the fuel in small scale space, so as to meet the requirement for the quality of fuel atomization under a quite wide burden of the combustion chamber of the miniature gas turbine; the nozzle can avoid burnout and overcomes the defect of nozzle blockage caused by high temperature coking of the fuel; meanwhile, the nozzle can make the fuel in the combustion chamber to be combusted more fully and reduce discharge of pollutants such as smoke black and so on.
Owner:江苏中国科学院能源动力研究中心 +1
Engine test running power output tooling
The invention discloses an engine test running power output tooling, which aims to solve the problems of unreliable coaxiality and large vibration in the engine test running power output of the prior art. The engine test running power output tooling comprises a clutch shell, a transmission spline shaft and an elastic coupling. One end of the spline shaft is connected with one end of the elastic coupling. The clutch shell is sleeved on the transmission spline shaft. The other end of the transmission spline shaft is connected with the power output part of an engine. The other end of the elastic coupling is connected with the power receiving part of a test-bed frame. The clutch shell is connected with the flywheel shell of the engine. The coaxiality of the tooling of the invention can be ensured easily, the power output does not tend to deviate and the vibration is small.
Owner:GUANGXI YUCHAI MASCH CO LTD
Textile cloth spray-drying system
InactiveCN106995992AGood effectUniform spray holeSucessive textile treatmentsLiquid/gas/vapor removal by squeezing rollersEngineeringUtilization rate
The invention discloses a textile cloth spray-drying system, comprising a dye box (1); a plurality of dye nozzles (2) are arranged in the dye box (1); one end of the dye box (1) is provided with a heating box (3); the other end of the heating box (1) correspond to the dye box (1) is provided with a rinsing box (5); a dye filter (9) is connected below the bottom of the dye box (1); the other end of the rinsing box (5) corresponding to the heating box (3) is provided with a dewatering box (7); the other end of the dewatering box (7) corresponding to the rinsing box (5) is provided with a drying box (19); two cloth feeding rollers (20) and two cloth drawing rollers (21) are connected to two ends of the drying box (19) respectively; an electric heating plate (22) is arranged in the drying box (19); a controller (23) is arranged at the top end of the drying box (19). The textile cloth spray-drying system is good in dyeing uniformity, lower in cost, higher in dye utilization rate, and good in environment-protecting and dyeing effect, and also has the advantages of good cloth-drying effect and zero cloth deformation.
Owner:湖州南浔凯普纺织有限公司
Temperature control terminal and temperature control method
PendingCN109307355AIncrease self-cleaning maintenance functionLow failure rateMechanical apparatusTemperature controlComputer module
The invention discloses a temperature control terminal and a temperature control method. The temperature control terminal comprises a control module, a display screen and an input module, wherein thedisplay screen and the input module are both connected to the control module; an output terminal for controlling a fan and a valve is arranged on the temperature control terminal; the input module isused for inputting an instruction or parameters; the input module is arranged to be capable of setting the mode, setting the target temperature and setting the temperature locking value, and the temperature locking value is the minimum locking refrigerating value or the maximum locking heating value; when the target temperature is set in a refrigerating mode and the control module detects that theset target temperature reaches the minimum locking refrigerating value, the control module does not respond to further reduce the set target temperature; and when the target temperature is set in a heating mode and the control module detects that the set target temperature reaches the maximum locking heating value, the control module does not respond to further set the target temperature. The temperature control terminal and the temperature control method are easily carried out, and the energy consumption can be obviously saved.
Owner:湖南同能机电科技有限公司
Systems and methods for gas supply and usage
InactiveCN102200217ASolution to short lifeReduce interventionContainer filling methodsGas handling/storage effectsSequence controlControl manner
The invention discloses systems and methods for gas supply and usage. This invention relates to gas vaporization and supply system that includes (a) a vessel suitable for holding a bulk quantity of a liquefied gas; (b) at least one heating source positioned on or near the vessel to supply energy to, or remove energy from, the liquefied gas; and (c) a heating source controller adapted to use process variables feedback for dynamically regulating the heating source and maintaining and regulating gas output. The process variables feedback results from cascading sequence control of at least two process variables. The process variables include pressure, temperature, and / or gas output flow rate. This invention also relates to a method for delivery of a gas, e.g., ultra high purity gases, from a liquefied state in a controlled manner to a usage site, e.g., a semiconductor manufacturing facility. This invention provides faster heating system response to fluctuations in customer demand, a longer heater life, and improved reliability.
Owner:PRAXAIR TECH INC
Charging method, circuit and system of mobile power source
InactiveCN107785958AGood user experienceReduce burn outSecondary cells charging/dischargingElectric powerOutbreakBurning out
The invention relates to a charging method, circuit and system of a mobile power source. The charging method of the mobile power source comprises the steps that the real-time temperature of an electric cell is acquired and compared with the preset temperature threshold value, so that detection signals which reflect the difference value between the real-time temperature and the temperature threshold value are generated; according to the detection signals, the input power and / or output power are / is adjusted based on a preset strategy until the real-time temperature is kept within the preset temperature threshold value range. According to the charging method, the acquired real-time temperature of the electric cell is acquired and compared with the preset temperature threshold value, and the input power or the output power is adjusted so that the real-time temperature can be kept within the preset temperature threshold value range when the mobile power source works at the adjusted and determined input power and the output power. Due to the fact that the temperature generated in working is limited within the preset temperature threshold value, the number of accidents such as IC chip burning-out, short circuit and battery fire outbreak caused by excessively high working temperature is reduced.
Owner:SHENZHEN ASCHIP TECH CO LTD
Powder feeding device and using method thereof
InactiveCN105803451AHigh flexibilityImprove cladding qualityMetallic material coating processesEngineeringNozzle
The invention relates to a powder feeding device and a using method thereof and belongs to the technical field of laser cladding. The powder feeding device comprises a fixing part and a powder feeding nozzle, wherein a regulation device is arranged between the fixing part and the powder feeding nozzle and is composed of a horizontal regulation part and a vertical regulation part; and the vertical regulation part is arranged in the horizontal regulation part. The powder feeding device is capable of regulating the distance between a powder outlet and the surface of a substrate, has the characteristics of high regulation accuracy, convenience and rapidness in operation, strong practicability and high economic benefit and is beneficial to improving the effective availability of cladding powder and the cladding quality.
Owner:SHANDONG ENERGY HEAVY EQUIP GRP DAZU REMANUFACTURING CO LTD
Method for preventing water leakage of base of coherent oxygen lance of electric furnace and water cooling plate under base
InactiveCN101709352AImprove heat exchange capacityReduce water leakage accidentsProcess efficiency improvementElectric furnaceWater leakageElectric arc furnace
The invention relates to a water leakage preventing method in the metallurgical field, in particular to a method for preventing water leakage of the base of a coherent oxygen lance of an electric furnace and a water cooling plate under the base. The mounted water cooling plate of the coherent oxygen lance is divided into an upper water cooling plate and a lower water cooling plate; the upper water cooling plate is made of steel, the original radian at the middle part of the upper water cooling plate is straightened to ensure that the base of the coherent oxygen lance bulges about 30 mm to the inner part of the electric furnace, so as to enlarge the distance between the coherent oxygen lance and a lower furnace liner and the distance between the lower water cooling plate and the lower furnace liner; the lower water cooling plate is made of copper; the mounting position of the base of the coherent oxygen lance is raised by 200 mm upwards on the original basis, and both the upper water cooling plate and the lower water cooling plate are changed. The method can basically solve the problem of water leakage of the base of the coherent oxygen lance and the water cooling plate under the base, greatly reduce erosion and depletion to the lower liner of the furnace by the coherent oxygen lance, obviously prolong the electric furnace life, reduce the labor intensity of workers, improve the production rhythm and reduce the production cost.
Owner:NANJING IRON & STEEL CO LTD
Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty
This invention provides a replaced torque changeable clutch action valve for automatic speed variator and method for restoring the hydraulic integrity. Said action valve consists of extensible valve plug of oil seal ring made from Teflon (or other similar material) installed on the main wearing place in valve to reduce the ATF leakage. Said valve plug contains inner liquid path way radial extended in radiation direction forming mutual communication with circular concave groove of oil seal ring. Said action valve driven by electromagnetic valve, the TCC signal pressure forcing ATF entering the path way of valve plug, making oil seal ring expansion to contact with hole and minimizing the ATF leakage in operation of torque changeable clutch.
Owner:SONNAX INDS
Manufacture process of low-flourine mica tape
The present invention relates to the mica tape manufacturing field, and especially relates to a manufacture process of low-flourine mica tapes. The manufacture process comprises the steps of coating brushing, mixed layer manufacturing, drying, cooling and tape cutting, wherein mica paper used in mixed layer manufacturing is tested low-flourine mica paper. With adoption of the manufacturing process provided by the present invention, a fluorine content of the manufactured mica tape is greatly reduced, requirements for environment protection are met, harms to human bodies are reduced, and the amount of release of fluorine especially in high-voltage cable application is lowered.
Owner:PINGJIANG XINGKE MICA PRODS
Heating control system of electric heater
InactiveCN103453583AExtended service lifeReduce burn outLighting and heating apparatusSpace heating and ventilation detailsControl systemSwitching signal
The invention discloses a heating control system of an electric heater, comprising a control unit and a heating part, wherein the control unit is used for controlling the heating part; the heating part comprises a first heating unit and a second heating unit. When the control unit receives a third signal from a switch unit, a timing unit is started to begin timing, and one of the first heating unit and the second heating unit is started; when the time counted by the timing unit reaches the preset time, the timing unit sends a switching signal to the control unit, and the timing unit is cleared and the time is counted again; when the control unit receives the switching signal from the timing unit, the control unit makes one, which is opened, of the first heating unit and the second heating unit closed, and makes one, which is closed, of the first heating unit and the second heating unit opened, so that the opening and the closing of the first heating unit and the second heating unit are switched.
Owner:余姚市泗门印刷厂
Gas heater
PendingCN110006171AImprove heat utilization efficiencyExtended service lifeAir heatersGas heaterEngineering
The invention provides a gas heater. The heater comprises a PTC heating core body and a heat conduction structure used for assembling the PTC heating core body, wherein the PTC heating core body and the heat conduction structure are axially arranged in a three-dimensional fin heat exchange tube, the three-dimensional fin heat exchange tube is axially arranged in an outer cylinder, a cold medium enters the outer cylinder through an air inlet, and realizes heat exchange with the three-dimensional fin heat exchange tube and the heat conduction structure, and a heat medium obtained through heat exchange flows out through an exhaust port. According to the gas heater, the heat utilization efficiency of the heater can be improved on one hand, the service life of the heater can be prolonged on theother hand, and the heater has good safety performance and excellent temperature equalizing performance.
Owner:重庆龙归换热器科技有限公司
Nozzle for minisize gas-turbine combustor
ActiveCN101206029BReduce manufacturing costThe atomization effect remains unchangedBurnersContinuous combustion chamberCombustion chamberCombustor
Owner:江苏中国科学院能源动力研究中心 +1
Plate rolling machine with cooling function
InactiveCN105436264AReduce burn outSave electricityShaping toolsCooling effectPulp and paper industry
The invention belongs to metal plates bent along the straight line, and particularly discloses a plate rolling machine with the cooling function. The plate rolling machine comprises a rack, an upper roller, a lower roller, a side roller and a power source driving the upper roller to rotate. The upper roller, the lower roller and the side roller are all rotationally connected to the rack. The plate rolling machine further comprises a first connecting shaft and first fan blades. The first connecting shaft is coaxially connected with the upper roller. The first fan blades are installed on the first connecting shaft. According to the scheme, the fan blades are installed on the first connecting shaft, and therefore when the power source drives the upper roller, the fan blades can be driven to rotate without additional power, and electric energy is saved. Meanwhile, when the fan blades rotate, a good cooling effect is achieved, in addition, dust or impurities on rolled plates can be blown away, and a certain cleaning function can be achieved for the rolled plates. Compared with a traditional plate rolling machine, the plate rolling machine in the scheme has a good heat dissipation effect, and the probability of burnout of sealing rings and side plates is effectively reduced.
Owner:CHONGQING HUTONG PIPELINE TECH EQUIP
Automobile headlamp
InactiveCN107859967AReduce burn outSimplify the layout of the spaceVehicle headlampsRoad vehiclesLaser lightOptoelectronics
The invention discloses an automobile headlamp. The automobile headlamp comprises a laser light source, a fluorescent piece, a rotating mechanism, and a reflecting mirror, wherein the central part ofthe fluorescent piece is connected with the rotating mechanism; the laser light source is positioned on one side of the fluorescent piece; and the reflecting mirror is arranged on the other side of the fluorescent piece. The automobile headlamp has the benefits as follows: during work, the fluorescent piece is driven by the rotating mechanism to rotate, the laser light source projects laser onto the fluorescent piece, so as to activate the fluorescent material on the fluorescent piece to generate diffusion light, the diffusion light is projected onto the reflecting mirror on the periphery of the fluorescent piece and further projected outwards; besides, the principle that the laser light source activates the fluorescent material to emit light is fully utilized on the whole structure, the spatial arrangement of laser lamps is greatly simplified, the probability that the fluorescent piece is burnt out is effectively reduced, and a heat dissipating function is achieved at the same time.
Owner:深圳市齐尚光科技有限公司
Heating control system of electric blanket
InactiveCN103458538ADoes not heat continuouslyExtended service lifeSleeping rugTravelling rugStart timeControl system
A heating control system of an electric blanket comprises a control unit and a heating part. The control unit is used for controlling the heating part. The heating part comprises a first heating unit and a second heating unit. When receiving a third signal from a switch unit, the control unit starts a timing unit to start timing and starts one of the first heating unit and the second heating unit. When keeping time to the preset time, the timing unit sends a switch signal to the control unit, is reset and restarts timing. When receiving the switch signal from the timing unit, the control unit enables the first heating unit or the second heating unit which is opened to be closed, and enables the first heating unit or the second heating unit which is closed to be opened, and accordingly opening and closing of the first heating unit and the second heating unit are switched.
Owner:王波兰
Active interconnection base material for high-efficiency high-power LED flip chip
PendingCN114131114AReduce noise pollutionReduce burn outMetal-working feeding devicesPositioning apparatusEngineeringElectrical and Electronics engineering
The invention discloses an active interconnection base material for a high-efficiency high-power LED flip chip, which is applied to the technical field of cutting equipment, and is characterized in that the active interconnection base material comprises a support frame and an operation platform arranged on the support frame, and a fixing frame of an L-shaped structure is arranged on the operation platform close to the edge; a cutting knife driven by a motor is arranged on the side, facing the operation platform, of the fixing frame. A servo motor is arranged on the operation platform close to the fixing frame. The cutting device has the technical effects that materials can be conveniently and quickly cut off, and the possibility that hands are injured when being cut by a cutting knife is reduced.
Owner:江苏康芯微电子科技有限公司
x-ray detector assembly
ActiveCN107110986BImprove securityReduce burn outRadiation intensity measurementOptical attenuatorScintillator
Owner:GENERAL ELECTRIC CO
Novel electric energy meter with temperature measurement function
InactiveCN113820518AAvoid burning outReduce the chance of burnoutThermometer applicationsTime integral measurementElectric energyAutomation
The invention discloses a novel electric energy meter with a temperature measurement function, and the electric energy meter comprises an incoming line and outgoing line looseness judgment module, a line diameter and power matching module, an electric energy meter burnout judgment module, and an incoming line and outgoing line temperature measurement module. The novel electric energy meter can monitor the temperature of incoming and outgoing lines in real time, the electricity consumption of the user everyday derived by a metering automation system is compared with the operation temperature of the user at the corresponding moment everyday, so that the electric energy meter is prevented from being burnt out, the probability of burning out of the electric energy meter is effectively reduced, and the safety coefficient of the circuit is improved.
Owner:GUIZHOU POWER GRID CO LTD
a lift device
Owner:高威
Thermal Buffer Sintering Furnace
Owner:WUHU HANGTIAN SPECIAL CABLE FACTORY
Dynamic adjustment method and system for working parameters of computer, terminal and storage medium
PendingCN114416461AImprove performanceReduce burn outDigital data processing detailsHardware monitoringControl engineeringSoftware engineering
The invention discloses a dynamic adjustment method and system for working parameters of a computer, a terminal and a storage medium, and relates to the technical field of computers.The method comprises the steps that a computer starting-up instruction is responded, and a user automatically responds after starting up the computer; dynamically acquiring an external temperature value according to the starting instruction; judging whether the external temperature value is consistent with the reference temperature value; if not, forming a re-judgment instruction; judging whether the external temperature value is lower than the reference temperature value or not according to the re-judgment instruction; if the judgment result is yes, a power consumption increasing instruction is formed, and the power consumption increasing instruction is used for controlling and increasing the power consumption of the chip; if the judgment result is no, a power consumption lowering instruction is formed, and the power consumption lowering instruction is used for controlling and lowering the power consumption of the chip. The purpose that the power consumption of the chip can be adjusted according to different environment temperatures can be achieved.
Owner:ARMORLINK
Electric heater heating control system
InactiveCN103453583BExtended service lifeReduce burn outLighting and heating apparatusSpace heating and ventilation detailsControl systemSwitching signal
The invention discloses a heating control system of an electric heater, comprising a control unit and a heating part, wherein the control unit is used for controlling the heating part; the heating part comprises a first heating unit and a second heating unit. When the control unit receives a third signal from a switch unit, a timing unit is started to begin timing, and one of the first heating unit and the second heating unit is started; when the time counted by the timing unit reaches the preset time, the timing unit sends a switching signal to the control unit, and the timing unit is cleared and the time is counted again; when the control unit receives the switching signal from the timing unit, the control unit makes one, which is opened, of the first heating unit and the second heating unit closed, and makes one, which is closed, of the first heating unit and the second heating unit opened, so that the opening and the closing of the first heating unit and the second heating unit are switched.
Owner:余姚市泗门印刷厂
Method for preventing water leakage of base of coherent oxygen lance of electric furnace and water cooling plate under base
InactiveCN101709352BImprove heat exchange capacityImprove leak resistanceProcess efficiency improvementElectric furnaceElectric arc furnaceWater leakage
The invention relates to a water leakage preventing method in the metallurgical field, in particular to a method for preventing water leakage of the base of a coherent oxygen lance of an electric furnace and a water cooling plate under the base. The mounted water cooling plate of the coherent oxygen lance is divided into an upper water cooling plate and a lower water cooling plate; the upper water cooling plate is made of steel, the original radian at the middle part of the upper water cooling plate is straightened to ensure that the base of the coherent oxygen lance bulges about 30 mm to theinner part of the electric furnace, so as to enlarge the distance between the coherent oxygen lance and a lower furnace liner and the distance between the lower water cooling plate and the lower furnace liner; the lower water cooling plate is made of copper; the mounting position of the base of the coherent oxygen lance is raised by 200 mm upwards on the original basis, and both the upper water cooling plate and the lower water cooling plate are changed. The method can basically solve the problem of water leakage of the base of the coherent oxygen lance and the water cooling plate under the base, greatly reduce erosion and depletion to the lower liner of the furnace by the coherent oxygen lance, obviously prolong the electric furnace life, reduce the labor intensity of workers, improve the production rhythm and reduce the production cost.
Owner:NANJING IRON & STEEL CO LTD
Pistons with clearance paired energy-saving and environment-friendly piston rings
ActiveCN103397950BReduce direct impactReduce the working environment temperatureMachines/enginesPistonsManufacturing technologyCombustion
Owner:CHONGQING JIANGRUN PISTON RING
A kind of manufacturing process of low fluorine mica tape
ActiveCN105070350BReduce releaseHarm reductionInsulated cablesMicaPulp and paper industryHigh pressure
The present invention relates to the mica tape manufacturing field, and especially relates to a manufacture process of low-flourine mica tapes. The manufacture process comprises the steps of coating brushing, mixed layer manufacturing, drying, cooling and tape cutting, wherein mica paper used in mixed layer manufacturing is tested low-flourine mica paper. With adoption of the manufacturing process provided by the present invention, a fluorine content of the manufactured mica tape is greatly reduced, requirements for environment protection are met, harms to human bodies are reduced, and the amount of release of fluorine especially in high-voltage cable application is lowered.
Owner:PINGJIANG XINGKE MICA PRODS
Dry-type transformer with high safety performance
InactiveCN114255967AImprove securityReduce the temperatureTransformers/inductances coolingThermodynamicsExternal energy
The invention relates to the technical field of dry-type transformers, and discloses a dry-type transformer with high safety performance, which comprises a cooling mechanism, and the cooling mechanism comprises a small turntable; according to the distance between the heat conduction block and a heat source, low-boiling-point evaporated liquor in the heat conduction block is converted between vaporization and liquefaction, the large rotating disc rotates, the heat absorption belt synchronously rotates, heat generated by operation of the dry-type transformer is absorbed and transferred, external energy is not needed, energy conservation and environmental protection are achieved, it is guaranteed that the dry-type transformer can be continuously and normally used, and the possibility of burnout is reduced; a small rotating disc drives a rotating column to rotate, a rotating rod set drives a piston to move up and down in the vertical direction, the movement of the piston changes the space in an exhaust pipe, generated airflow accelerates air flow in the exhaust pipe and takes away heat adsorbed on the surface of a heat absorption belt, the effect of cooling the exhaust pipe is achieved, and circulating heat absorption of the exhaust pipe is facilitated; heat dissipation can be continuously carried out on the dry-type transformer, and normal operation of the dry-type transformer is facilitated.
Owner:怀化联蔚科技有限公司
Heat dissipation device for switch power supply
InactiveCN107332432AImplement shading operationsReduce heatCooling/ventilation/heating modificationsPower conversion systemsElectronic componentEnergy consumption
The invention relates to the field of a switch power supply, is to solve the problem that energy consumption of the switch power supply can be increased when the switch power supply is cooled through a heat radiation fan, and provides a heat dissipation device for a switch power supply. The heat dissipation device comprises a housing. The housing is equipped with an electronic component of the switch power supply. A cover plate is arranged above the housing. The cover plate comprises a fixation portion and an extensible movable portion. The fixation portion of the cover plate is uniformly provided with connection holes; and the connection holes are used for connecting the movable portion. A retractable heat dissipation member is arranged between the cover plate and the housing. The heat dissipation member is arranged on the upper end surface of the housing and is internally provided with a cavity filled with water. The heat dissipation member can extends along the side surface of the housing under the function of the movable portion.
Owner:CHONGQING LUGE TECH CO LTD
Thermal buffer type sintering furnace
ActiveCN107270711AEvenly heatedReduce burn outCharge treatment typeFurnace typesFailure rateMetallurgy
The invention discloses a thermal buffer type sintering furnace. The thermal buffer type sintering furnace comprises a furnace body (1), stainless steel pipes (3) and a heating wire (5). The multiple stainless steel pipes (3) are arranged in the axial direction of the furnace body (1) and uniformly distributed in the furnace body (1) in the circumferential direction. The heating wire (5) is spirally laid on the inner wall of the furnace body (1) in the length direction of the furnace body (1). A heating mechanism is connected to the heating wire (5). By the adoption of the thermal buffer type sintering furnace, the sintering failure rate can be reduced.
Owner:WUHU HANGTIAN SPECIAL CABLE FACTORY
A frequency converter with an overheat protection system
InactiveCN109066585AExtended service lifeReduce burn outEmergency protective arrangements for automatic disconnectionFrequency changerExecution unit
The invention discloses a frequency converter with an overheat protection system, relates to a frequency converter, and solves the problem that the main circuit of the frequency converter is easy to be damaged due to the temperature rise of the frequency converter in operation, The technical scheme comprises the following points: a temperature detecting unit, a frequency converter quarterly temperature threshold database provided with temperature reference values of different quarters, a quarterly switching unit for detecting the quarter in which the frequency converter is located in real timeand outputting the corresponding quarter number, a central processing unit, a comparison unit and an execution unit; The invention discloses a frequency converter with an overheat protection system.When the temperature at a main circuit is higher than a temperature threshold value, the execution unit immediately cuts off the loop where the main circuit is located, reduces the probability of burning out the main circuit under the condition of high temperature, and prolongs the service life of the frequency converter.
Owner:TAIZHOU LINGSHIDA ELECTRIC APPLIANCES
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