73results about How to "Guaranteed temperature rise" patented technology

The invention discloses a special automatic vehicle coaxial combination brushes DC motor with functions of power self-regulating and temperature control. The motor has the following technical points: more than two stators with the same structure are mounted in a motor base, and more than two rotors with the same structure are correspondingly mounted on a rotary shaft; a wind cover is mounted outside the end cover of non-shaft stretch end, an air vent is formed in the middle of the wind cover, and is communicated with a blast pump; another air vent is formed at the end cover of the non-shaft stretch end, and a ventilation port is formed on the motor base; a temperature sensor is arranged in the motor base, and is connected to a temperature controller, and the temperature controller is connected with the blast pump and a power supply; the phase line of the stator winding of each stator and a control line are respectively connected to a corresponding sub-frequency conversion controller, each sub-frequency conversion controller is connected with a circuit controller, and the circuit controller is connected with the power supply. The motor disclosed by the invention can enlarge start torque, saves energy, lowers the cost of the frequency conversion controllers, and reduces the temperature rise of the motor.

The invention belongs to the technical field of dish-washing machine control, and provides a dish-washing machine and a washing control method and system for the same. During a dish washing process conducted by the dish-washing machine, a washing motor runs in a high-speed and low-speed alternate switch mode controlled by a motor drive circuit, the dish cleaning effect can be improved during high speed running of the washing motor, and an average working current of the washing motor can be reduced through the high-speed and low-speed switch at the same time, so that non standard-exceeding of temperature rise of the motor drive circuit is guaranteed; meanwhile, the working current of the washing motor is subjected to successive detection according to preset detection times, the normal times of the motor current are subjected to superposition counting if overflowing does not occur in the working current of the washing motor; after the completion of the detection, if it is concluded that overload running occurs in the washing motor according to the normal times of the motor current and the preset detection times, the motor drive circuit is controlled to stop working, so that overloading of the washing motor is accurately judged and the motor drive circuit is timely shut off to avoid the component damage due to the temperature rise.

This invention discloses a digital-controlled wire stripping machine characterized by that each step motor is electrically connected with the said step motor corresponding constant current chopper driver separately. after being fitted with constant chopping drive and static and dynamic current adjustment, the step motor has more powerful driving force, quicker rotating speed and more stable operation, and a gripping device is set up at the terminal for orderly and regular operation guided by a single-chip computer to increase the stripping quality.

The invention relates to a control method of an ethylene carbonate synthesis process. According to the invention, ethylene carbonate is synthesized through a gas-liquid-solid three-phase reaction with carbon dioxide and ethylene oxide. The method is mainly provided for solving the problems of temperature runaway and low product purity of prior arts. According to the invention, key process control indicators of the reaction are controlled with an automatic control system. A catalyst is fixed with porous baffles in a reaction bed layer. Liquid-phase and gas-phase raw materials respectively enter from the upper part and the lower part of the reactor. Catalyst bed layer temperature rise in the reactor is controlled with outer circulation material flow, such that the bed layer temperature rise is controlled within a certain range. Product purity is controlled with secondary reactor outlet liquid phase output amount. With the technical scheme, the problems are well solved. The method can be applied in industrial productions of ethylene carbonate synthesis.

The invention discloses a domestic photovoltaic control system which comprises a rotating frame, a solar panel, a charge-discharge controller, a storage battery and a photovoltaic inverter. The solar panel is reversibly arranged on the rotating frame, a first motor drives the rotating frame to rotate, a second motor drives the solar panel to turn over, a solar tracker is arranged at the center of the surface of the solar panel in a matching manner and controls the first motor and the second motor to work, so that the solar panel obtains the largest optical radiation orthographic area, solar energy is received by as much as possible and efficiently collected and used, a three-phase main reactor and a three-phase auxiliary reactor share a middle yoke, the sectional area of the middle yoke is specifically designed, so that the sectional area of the middle yoke can be decreased, material cost is reduced, temperature rise of the shared middle yoke can meet requirements, noise can be reduced, and overall efficiency can be improved.

The disclosed intelligent fast charger with control cabinet structure comprises: a fuzzy controller as the main, an operation panel (8) with a red lamp (6) and green lamp (7) and a display (17) and a keyboard (18), a CPU and interface module (15) arranged on the back panel (5), an isolation plate (3) with guide rail (12) on middle to hang a large-power device (13), and a control module (14) included a transformer and a rectifier diode. Wherein, all of (15), (6), (7), (17) and (18) are connected by plugging or pulling pipeline. This invention has ideal charge curve and fit to charge the direct power or standby power.

The invention discloses a thick-film coating process for preparing a TSV three-dimensional integrated RDL electroplated mask. The technology comprises the following steps: a Ti adhesion layer and a Cu seed layer are sequentially sputtered on the surface of an insulated layer of a TSV blind hole electroplated wafer; a thick film is prepared in a mode of gluing for two times and baking for two times, a thick photoresist is coated at low speed for the first time, a thin photoresist is coated at high speed for the second time, time and temperature of the two-time baking vary according to the thickness ratio of the upper glue layer to the lower glue layer, and the ratio of the accumulated baking time of the bottom glue layer to the baking time of the surface glue layer is the thickness ratio of the two; and exposure, development and hardbaking are then carried out for preparing the RDL electroplated mask. Through adjusting parameters of two-time gluing and conditions of baking, uniformity of the thick film layer and resolution of lithography can be ensured; through strong exposure, quick development and low-temperature and long-time hardbaking, the mask which is high in precision, steep in side wall, higher in thickness and higher in uniformity can be manufactured; and the technology of the invention can be applied to RDL interconnecting wire whose electroplated layer is higher than 20mum and appearance is clear and neat.

The invention discloses a catalytic combustion purification process and device. According to the catalytic combustion purification process and device, firstly, organic waste gas and air and/or oxygen are mixed, and the mixing ratio of the organic waste gas and the air and/or the oxygen can be flexibly regulated and controlled according to the requirement for the subsequent catalytic combustion technology; it is guaranteed that the concentration of the organic waste gas in the mixed gas is within the explosion limit; more importantly, the subsequent catalytic combustion temperature is regulated and controlled, and the phenomenon of temperature runaway of catalytic combustion sections is eradicated; secondly, the mixed gas is divided into two parts, one part is used for catalytic combustion, and the remaining part conducts heat exchange with mixed gas at outlets of all the stages of the catalytic combustion sections. In this manner, the amount of the two parts can be regulated flexibly in time; the temperature of the mixed gas going in the next stage of catalytic combustion is maintained by using the remaining part; finally, catalytic combustion can be smoothly carried out, and the phenomenon of temperature runaway is prevented.

The invention discloses an air conditioner. The air conditioner comprises a compressor, an indoor unit casing, an evaporator, a condenser and an air guiding duct, wherein the indoor unit casing comprises a separating cavity, a first sealing cavity and a second sealing cavity; one end of the air guiding duct is connected to the separating cavity, and the other end of the air guiding duct is connected to the outside; the evaporator is arranged in the first sealing cavity; the condenser is arranged in the second sealing cavity; the separating cavity is arranged between the first sealing cavity and the second sealing cavity; a guide adjusting device is arranged in the separating cavity; when the guide adjusting device is positioned at a first position, the first sealing cavity communicates with an air ducting hose through the separating cavity and is separated from the inside; the second sealing cavity communicates with the inside through the separating cavity and is separated from the air ducting hose; when the guide adjusting device is positioned at a second position, the second sealing cavity communicates with the air ducting hose through the separating cavity and is separated from the inside; the first sealing cavity communicates with the inside through the separating cavity and is separated from the air ducting hose. According to the air conditioner disclosed by the invention, the problem that the air conditioner is greatly influenced by the outside and is poor in operation effect in the prior art can be solved.

The invention discloses a transformer copper pipe lead with an internal cooling structure. The transformer copper pipe lead comprises lead joints which are fixed at two ends of the copper pipe lead, and crepe paper which is bound in the middle of the copper pipe lead, wherein the copper pipe lead adopts the internal cooling structure; cooling oil circularly flows in the copper pipe lead; a plurality of oil inlet and outlet groove openings are respectively formed at the two ends of the copper pipe lead; binding tapes and the crepe paper are sequentially bound at the two ends of the copper pipe lead and outside the lead joints from inside to outside; a plurality of insulating cylinders are sleeved outside the crepe paper; and a plurality of supporting strips are arranged between the crepe paper and the insulating cylinders and between the two adjacent insulating cylinders. The transformer copper pipe lead has the advantages of simple structure, convenience for operation and good cooling effect, the operation reliability of a transformer is improved, the sectional area of a transformer lead can be reduced, the consumption of raw materials is reduced, the temperature of the oil can rise by the lead, and the design of a high-voltage and high-capacity transformer lead is facilitated.

The invention relates to a through-flow submersible electric pump which comprises a cylindrical pump body, an impeller and a motor, wherein the two ends of the pump body are penetrated. The motor comprises a supporting shaft. The middle of the supporting shaft is sleeved by a stator. The stator is sleeved by a rotor, namely an outer rotor structure is adopted. The two axial ends of the rotor are fixedly connected with a front end cover and a rear end cover respectively. The portion between the front end cover and the supporting shaft and the portion between the rear end cover and the supporting shaft are respectively provided with a bearing through a bearing seat. The outer side end portion of the front end cover is connected with an impeller shaft of the impeller. The impeller shaft of the impeller is a hollow shaft and sleeved on the supporting shaft in a hollow mode. The two ends of the supporting shaft are respectively fixed in the pump body and coaxial to the pump body. The outer rotor structure is adopted, a motor shell of a traditional submersible motor and a gear reducer are removed, so that manufacturing accuracy is reduced; the gear reducer and the motor shell are not required, so that the structure is compact and a large amount of manufacturing cost is saved.

The invention discloses a novel inflatable switch cabinet in the technical field of inflatable switch cabinets, which comprises a primary switch element, the primary switch element comprises a sealing thick aluminum plate, and one side of the sealing thick aluminum plate is provided with an isolation grounding operation mechanism and a circuit breaker mechanism. A multi-station isolation grounding switch and a plurality of solid-sealed polar pole assemblies controlled by the multi-station isolation grounding switch are mounted on the other side; the isolation grounding operation mechanism can control the multi-station isolation grounding switch to be closed and grounded, a transmission mechanism and an operation mechanism are integrated on the circuit breaker mechanism, and the operation mechanism can simultaneously control the plurality of solid-sealed polar pole assembly open circuits to be closed through the transmission mechanism. According to the novel inflatable switch cabinet provided by the invention, the mechanism is directly fixed on the sealing thick aluminum plate, a transmission mechanism and an operating mechanism of the vacuum circuit breaker are integrated, a mechanism frame is cancelled, and the mechanism is directly fixed on the sealing thick aluminum plate, so that the mechanism cost of the circuit breaker is reduced.

The invention discloses a cooling fan drive circuit and a cooking utensil. The cooling fan drive circuit comprises a current sampling circuit, a signal amplification circuit and a drive circuit body which are connected in sequence. The current sampling circuit is used for detecting real-time currents of a heating device in the heating process. The signal amplification circuit is used for conducting signal amplification on the real-time currents detected by the current sampling circuit. The drive circuit body is used for controlling the rotating speed of a cooling fan according to current signals output by the signal amplification circuit. According to the cooling fan drive circuit and the cooking utensil, the fan can be driven with the help of the current sampling signals, the number of temperature wrap sampling circuits can be decreased, MUC resource consumption is reduced, power dissipation is also reduced, and meanwhile the rotating speed of the fan can be adjusted.

The invention relates to a high precision adjustable automatic constant temperature test system for a pump and belongs to the pump production technology field. The system comprises a liquid storage case, test medium, a temperature rising device, a cooling device, a compulsory convection device, a temperature measurement and analysis system, a temperature acquisition and control system, a pump inlet pipeline and a pump outlet pipeline, wherein the test medium is stored in the liquid storage case, the temperature rising device, the cooling device, the compulsory convection device, temperature sensors, the pump inlet pipeline and the pump outlet pipeline are mounted on the liquid storage case, the temperature rising device is mounted at the lower portion of the inner side of the liquid storage case, the cooling device is mounted at the upper portion of the inner side of the liquid storage case, the temperature measurement and analysis system is a sensor, the compulsory convection device is mounted at the bottom portion of the inner side of the liquid storage case, the temperature sensors are respectively mounted on the pump inlet pipeline, the upper portion of the temperature rising device and the lower portion of the cooling device, and the temperature acquisition and control system is for control. The system has advantages of high precision, high automation degree, long medium service life and wide market prospects.