12653 results about "Air cooling" patented technology

The invention discloses a magnetic suspension high-speed motor based on a centrifugal air cooling structure, and belongs to the technical field of magnetic suspension high-speed motors, the magnetic suspension high-speed motor comprises a main body assembly, the main body assembly comprises a front end cover, a motor shaft, two magnetic suspension bearings, a rotor, a stator core, a casing, a rear end cover, a protective cover, a protective net, a flow guide fan and an exhaust hole; the rotor is installed on the outer side wall of the motor shaft. When the motor shaft rotates, the flow guide fan is driven to rotate at a high speed, negative pressure is formed at the position of the exhaust hole, at the moment, external air flows into the heat dissipation flow channel through the air inlet flow channel, absorbs heat in the stator iron core, then flows into the machine shell, flows in the gap between the rotor and the stator iron core and is finally exhausted from the exhaust hole, and therefore heat dissipation is achieved. In the flowing process of the air, heat in the stator core and the rotor can be taken away, so that heat accumulation is avoided, and efficient heat dissipation of the stator and the rotor is realized.

The present invention relates to the technical field of brushless electric motor cooling, and specifically relates to a brushless electric motor cooling device, comprising an electric motor body, a transmission shaft, a liquid storage tank and a top cover, and further comprising a cooling assembly, wherein the transmission shaft is fixedly mounted in the electric motor body; the cooling assembly is fixedly mounted on the electric motor body; the liquid storage tank is fixedly mounted at one end of the cooling assembly; and the top cover is fixedly mounted at the other end of the cooling assembly. The present invention solves the problem of existing brushless electric motors being easily damaged during a high-load and high-speed rotation process caused by simple air cooling or water cooling being unable to provide a satisfactory cooling effect for excessive heat generated by the brushless electric motors when rotating at high speed for a long time. The present invention enables a brushless electric motor to be cooled rapidly, significantly improving the cooling effect for the brushless electric motor and prolonging the service life thereof.

The invention relates to the technical field of wind power operation and maintenance technologies, and discloses a combined heat dissipation system of a fan, the system comprises a multi-source sensing module, a decision control module, a heat dissipation execution module and a safety early warning module, and by setting multi-mode cooperative control, when fan heat dissipation regulation and control are carried out, the heat dissipation of the fan can be controlled in a multi-mode cooperative mode; a dynamic matching mechanism of temperature field characteristics and heat dissipation modes is established, and air cooling, liquid cooling and phase change strengthening modes are automatically switched in real time according to the temperature rise rate and the heat distribution gradient, so that the system can accurately adapt to heat dissipation requirements under different working conditions, timely heat dissipation of a high-temperature core area is guaranteed, the heat dissipation response accuracy is improved, and the service life of the system is prolonged. By arranging the three-dimensional thermal field balancing system, the hot area distribution difference of the bearing, the winding and the power module is recognized in real time, the cooling liquid flow and the airflow guide angle are dynamically adjusted, the three-dimensional thermal unbalance phenomenon in a traditional heat dissipation mode is eliminated, and it is guaranteed that the temperature gradient of all areas in the motor is always kept within a safety threshold value.

An electric machine includes a housing, a stator positioned in the housing and including a stator winding, and a rotor positioned in the housing configured to rotate about a machine axis and electromagnetically interactive with the stator across an air gap between the rotor and the stator. The rotor includes a rotor core, a plurality of permanent magnets located at the rotor core, and a rotor sleeve enclosing the rotor core and the plurality of permanent magnets. The stator is cooled via a flow of cooling oil, and the rotor is cooled via a flow of cooling air directed through the air gap between the rotor sleeve and the stator.

The invention discloses a dispersed transformer cooling system and method, and relates to the technical field of transformers, integration supporting rods are mounted on the inner side of a transformer integration box through fixing bolts, a treatment transformer box is welded to the top ends of the two integration supporting rods, a hollow supporting rod is clamped to the inner side of the treatment transformer box, and a transformer core is mounted at the top end of the hollow supporting rod; the device effectively solves the problems that in the prior art, due to the fact that oil cannot circulate, heat is concentrated at the position of a transformer core, the internal temperature cannot be homogenized, only external air cooling treatment is conducted, the heat removal efficiency is poor, meanwhile, oil overflow and oil liquid level control are utilized, and the heat removal efficiency is poor. And the heat exchange area is increased, and the influence of oil on the operation environment and the operation stability is avoided, so that the heat exchange area is increased, the heat exchange speed is increased, the overall temperature is balanced, and stable operation treatment of the transformer is realized.

The invention relates to the technical field of air-cooled air conditioner control, in particular to an air-cooled air conditioner control method and system based on deep learning, and the method comprises the following steps: obtaining sensor readings of indoor temperature, outdoor temperature and humidity and Wi-Fi channel state information, judging the position number and the activity state of personnel, calculating the position distribution of the personnel in combination with a time window, and calculating the position distribution of the personnel. And integrating to obtain a multi-dimensional environment and load state vector. According to the method, indoor and outdoor temperature, humidity, Wi-Fi channel state information and personnel position distribution and activity states are integrated through a multi-dimensional environment and load state vector, the personnel density change trend is dynamically calculated through a time window, the comprehensiveness and real-time performance of environment perception are enhanced, and high-dimensional data support is provided for control decision making. And a basic comfort degree deviation index is constructed based on the temperature deviation value and the humidity deviation value, and a multi-target performance index set is generated in combination with the wind speed value, the compressor start-stop frequency and the energy consumption power.

The invention discloses a liquid-cooled double-shaft-extension alternating current permanent magnet synchronous servo motor and a use method, and relates to the technical field of motors. According to the liquid-cooled double-shaft-extension alternating-current permanent magnet synchronous servo motor and the use method thereof, the two liquid cooling mechanisms can be driven to work along with rotation of two rotor shafts of the double-shaft synchronous rotor mechanism through mutual cooperation of the double-shaft synchronous rotor mechanism, the liquid cooling mechanisms, the cooling pipe mechanisms and the spiral heat dissipation pipes; the liquid cooling mechanisms are enabled to pump and drain cooling liquid, so that the cooling liquid in the cooling pipe mechanism, the spiral heat dissipation pipe and the two liquid cooling mechanisms circularly flows, heat generated by working of the motor can be taken away in time in the circulating flowing process of the cooling liquid, and meanwhile, along with rotation of the double-shaft synchronous rotor mechanism, the heat generated by working of the motor can be taken away in time. According to the motor cooling device, hot air in the shell can be rapidly pumped out, the motor is cooled by combining liquid cooling and air cooling, the cooling effect on the motor is greatly enhanced, and continuous normal operation of the motor is ensured.

The invention provides an air-liquid homologous liquid cooling system, a control method, equipment and a storage medium, the air-liquid homologous liquid cooling system comprises an outdoor heat dissipation device, a cooling water pump, a cooling capacity distribution unit, a cold plate type liquid cooling cabinet and a tail end air conditioner, the cooling capacity distribution unit is used for managing distribution of cooling liquid, and the cooling capacity distribution unit comprises a liquid cooling heat exchanger and a water fluorine heat exchanger; the primary side of the liquid cooling heat exchanger is connected with the outdoor heat dissipation device, the secondary side of the liquid cooling heat exchanger is connected with the cold plate type liquid cooling cabinet, the primary side of the water fluorine heat exchanger is connected with the outdoor heat dissipation device, and the secondary side of the water fluorine heat exchanger is connected with a refrigerant pipe of the tail end air conditioner; the cold plate type liquid cooling tail end and the air cooling air conditioner tail end in the machine room adopt the same outdoor primary side cold source, stepless adjustment of the cooling capacity is achieved, and the problem that two cold sources need to be deployed at the same time in a traditional cold plate type liquid cooling machine room is solved.

The invention discloses a high-power offshore semi-direct-drive permanent magnet wind driven generator cooling system which comprises an outer stator and an inner rotor, the outer stator comprises a motor base, a stator iron core and a stator winding assembled on the stator iron core are installed in the motor base, and an air-water cooler is installed on the upper portion of the motor base. A flow guide plate is arranged in the air-water cooler, a heat dissipation core body is installed at the position, located at the bottom of the flow guide plate, in the air-water cooler, and the flow guide plate is used for enabling hot air exhausted out of the motor to pass through the heat dissipation core body to form a plurality of parallel air paths in the air-water cooler. And the plurality of air paths connected in parallel respectively perform cold and heat exchange with the interior of the motor so as to reduce the air resistance in the motor and the air-water cooler. The cooling system has the characteristic of low wind resistance, the power of the air cooling driving motor used by the cooling system can be reduced, the cost of the cooling system is reduced, and the heat dissipation efficiency is improved.

The utility model relates to the technical field of hydraulic stations, and discloses an automatic temperature control system for a hydraulic station, which comprises an air-cooled radiator for radiating hydraulic oil, an oil inlet pipe and an oil outlet pipe for connecting the air-cooled radiator with the hydraulic station, a controller, a temperature sensor A, a temperature sensor B and an alarm, the temperature sensor monitors the temperature of hydraulic oil entering and exiting the air-cooled radiator in real time, and the controller adjusts the heat dissipation effect of the air-cooled radiator according to monitored data so as to maintain the oil temperature within a suitable range. And if the oil temperature exceeds a set threshold value, the controller can activate the alarm to prompt an operator to intervene. The system can monitor the oil temperature in real time and quickly respond to temperature changes, and it is guaranteed that the performance of hydraulic oil is in the optimal state all the time.

The invention provides an electronic device. The electronic equipment comprises a back shell, a decoration assembly, a heating device and a piezoelectric air cooling module. The back shell has a first opening. The decoration assembly is provided with a containing groove, a first air inlet and a first air outlet, the containing groove communicates with the first opening to form a containing space, and the first air inlet and the first air outlet communicate with the containing groove; the heating device is arranged in the accommodating space; the piezoelectric air cooling module is arranged in the containing space and corresponds to the heating device, the piezoelectric air cooling module comprises one or more piezoelectric air cooling assemblies, each piezoelectric air cooling assembly comprises one or more piezoelectric air cooling units, each piezoelectric air cooling unit comprises a vibration part and a piezoelectric part, the piezoelectric parts are borne on the vibration parts, and the piezoelectric parts are arranged on the piezoelectric air cooling units. And the piezoelectric piece is used for deforming under the control of the control signal and driving the vibration piece to deform so as to dissipate heat of the heating device. The thickness of the electronic equipment is small.

The invention discloses an air conditioner and a control method thereof. The air conditioner comprises a main body internally provided with an air duct, the air duct is provided with a front air outlet and a lower air outlet, the front air outlet is located in the front side wall of the main body, the lower air outlet is located in the front of the lower side wall of the main body, and the size of the front air outlet in the vertical direction is larger than that of the lower air outlet in the front-back direction; the opening and closing doors are sequentially arranged in the vertical direction and arranged at the front air outlet in a swinging mode, the opening and closing doors are arranged to be capable of jointly closing the front air outlet, the opening and closing door located at the lowest position is arranged to be capable of closing the lower air outlet, and the lower air outlet is in an open state on the basis that the front air outlet is jointly closed by the opening and closing doors. The air conditioner is matched with an engineering panel so that hot air and cold air can be supplied to the lower portion, and hot air and cold air can also be supplied to the front portion; in addition, the size of the front air outlet in the vertical direction is larger than that of the lower air outlet in the front-back direction, and therefore condensation caused by air backflow is not prone to occurring in the cold air discharging process of the lower air outlet.

The invention discloses a battery prefabricated cabin intelligent refrigeration control method and system based on data driving, and relates to the technical field of battery energy storage system thermal management, and the method comprises the steps: collecting the operation multi-source data of a battery prefabricated cabin, and constructing the current thermal environment state expression; constructing a battery cabin short-term internal heat change trend prediction model based on the operation multi-source data of the battery prefabricated cabin; and according to the current thermal environment state expression and the thermal trend prediction result of the battery compartment short-term internal thermal change trend prediction model, an optimal control strategy for an air cooling, liquid cooling or composite refrigeration mode is formulated. According to the method, a closed-loop thermal management system driven by data is formed by constructing a thermal state expression module, a thermal trend prediction module and an intelligent refrigeration decision module, accurate recognition and active regulation and control of the thermal risk of the battery prefabrication cabin are achieved, the temperature control precision and the response efficiency are improved, energy consumption and over-control risks are effectively reduced, and the method is suitable for popularization and application. And the system has the advantages of remarkable engineering practical value and system intellectualization.

The present invention relates to the technical field of control cabinets, and provides an electrical control cabinet for a thermal power plant, comprising an electrical control cabinet, wherein the electrical control cabinet is provided with a plurality of ventilation openings, a heat absorption plate is fixedly mounted on an inner wall of the electrical control cabinet, a heat dissipation structure is mounted on the heat absorption plate, four connecting bases are symmetrically and fixedly mounted on a top side of the electrical control cabinet, a ventilation structure is mounted on the four connecting bases, two mounting frames are symmetrically and fixedly mounted on the top side of the electrical control cabinet, and an anti-snow structure is mounted on the two mounting frames. According to the present invention, heat dissipation is achieved by means of a combination of heat conduction and air cooling, thereby further improving the heat dissipation effect of the electrical control cabinet. When the present invention is used in winter, if the ambient temperature is low, a fan and an electric heating tube can be turned on to heat internal equipment within the electrical control cabinet, so as to prevent any impact on the operation of the equipment due to excessively low temperatures; when the present invention is used outdoors, a protective metal roof can be employed for snow protection. Furthermore, the present invention also includes a snow removal function.

The self-cooled transformer comprises a base, a first heat dissipation mechanism and a second heat dissipation mechanism, a power transformation box is arranged at the upper end of the base, insulating oil is filled in the power transformation box, mounting frames are arranged at the upper ends of the front side and the rear side of the power transformation box, and connecting bottom pipes are arranged at the lower ends of the front side and the rear side of the power transformation box; the first heat dissipation mechanism comprises rotating joints, coil pipes and heat dissipation plates, the rotating joints are arranged in the middles of the opposite inner side faces of the vertically adjacent mounting frames and the connecting bottom pipe, the coil pipes are arranged between the rotating ends of the two vertically adjacent rotating joints, and the heat dissipation plates are arranged on the outer surface of a whole formed by the four coil pipes; the self-cooled transformer is provided with the two sets of heat dissipation mechanisms, air cooling and water cooling are achieved while internal circulation heat dissipation is achieved, the heat dissipation efficiency is improved, the heat dissipation devices can be automatically started step by step according to the equipment temperature, and energy waste is effectively avoided.

The invention relates to the technical field of planer type milling machines, and discloses a planer type milling machine with an air cooling mechanism, the planer type milling machine comprises a planer type milling machine, the top of the planer type milling machine is provided with a planer type cross beam, the outer wall of the planer type cross beam is slidably connected with a sliding seat, the surface of the sliding seat is provided with a ram, and the outer wall of the ram is fixedly connected with a mounting frame; the top of the mounting frame is fixedly connected with a driving motor; and a circumferential mechanism is arranged at the bottom of the mounting frame. According to the planer type milling machine with the air cooling mechanism, the circumferential mechanism is arranged, so that sprayed air rotationally blows towards a cutting tool bit, the sprayed air rotationally blows around the tool bit, chippings around the tool bit can be effectively helped to be removed, the chippings are pushed outwards through centrifugal force generated by rotating airflow, and the chippings can be effectively removed; by means of the design, it can be guaranteed that a cutting area is kept clean, the cutting efficiency is improved, and the situation that the cutting quality is reduced due to accumulation of the chippings is avoided.

The invention relates to the technical field of impeller injection molds, in particular to an efficient-cooling precise impeller injection mold which comprises a mold base, a fixed mold is arranged at the upper end of the mold base, a movable mold is movably installed over the fixed mold, and an injection hole is formed in the center of the movable mold. A supporting seat is arranged between the fixed mold and the mold base, and an air cooling cavity is formed in an inner cavity of the supporting seat; the impeller injection mold has the beneficial effects that the mode that water cooling and air cooling are combined is adopted, efficient cooling of the impeller injection mold is achieved, the forming effect is improved, efficient water cooling is conducted on the side face and the bottom of the impeller mold through cooperation of a first water tank, a second water tank and a circulating cooling mechanism, and the inner structure of a first water inlet pipe is optimized; exporting of gas in the water flow is ensured; while water cooling is conducted, the turbulent flow impeller is promoted to rotate, water flow is disturbed, the uniformity of the water flow is accelerated, and the cooling forming efficiency of the impeller injection mold is further improved.

The invention discloses an overvoltage protection assembly and system of a voltage-sensitive nonlinear element structure. The assembly comprises an insulating core tube, a plurality of nonlinear elements, a first electrode, a second electrode, an insulating cylinder, a cooling fan and a temperature sensor. The assembly can perform forced air cooling on the nonlinear element, and is timely in response, good in cooling effect, simple and compact in structure and easy to integrate.

The invention relates to a cathode closed type air-cooled fuel cell for an unmanned aerial vehicle and a working method of the cathode closed type air-cooled fuel cell. The fuel cell comprises a hydrogen supply subsystem, an oxygen supply subsystem, a cooling path subsystem and an electric pile, the hydrogen supply subsystem and the oxygen supply subsystem complete heat exchange between liquid hydrogen and high-temperature air through a liquid hydrogen vaporizer, and the effects of liquid hydrogen vaporization and high-temperature air cooling are achieved. By arranging the first vortex tube to replace a traditional pressure reducing valve, potential energy of vaporized high-pressure hydrogen is recovered by the first vortex tube, the vaporized high-pressure hydrogen is separated into cold flow and hot flow in the first vortex tube, and the hot flow partially enters an end plate of the galvanic pile to heat the end plate, so that the temperature distribution in the galvanic pile is optimized, and the voltage consistency between single cells is improved; therefore, the performance and durability of the stack are improved. When the fuel cell is used for the unmanned aerial vehicle, the fan of the fuel cell is also used as a propeller of the unmanned aerial vehicle, so that the system integration level is increased.

The invention relates to the technical field of electric workover rig thermal management, and discloses a workover pump truck electric drive thermal management method and system, and the system comprises a multi-source temperature collection module, an operation state monitoring module, a thermal management analysis module, a strategy matching engine module, a dynamic execution control module, a feedback optimization module, and a prediction decision module. The method comprises the following steps: acquiring environment temperature, motor temperature, battery temperature and cooling liquid temperature data; obtaining motor power, battery current and a vehicle operation mode; generating a thermal management demand level based on the temperature and the operating parameters; matching natural cooling, air cooling or liquid cooling strategies according to grades; cooling operation is executed, the temperature change rate is calculated in real time, and the cooling intensity is dynamically adjusted; when the threshold value is exceeded, liquid cooling cooperative control is started; predicting a thermal load trend through an LSTM model, generating a dynamic cooling plan, and optimizing an execution priority; and a thermal management efficiency evaluation report is output, so that the operation reliability and energy efficiency of the electrically-driven workover pump truck are improved.

The invention relates to the technical field of motors, and particularly discloses an efficient heat dissipation high-power motor, which comprises a casing, and a rotor assembly, a stator assembly and a rotating shaft which are arranged in the casing, and is characterized in that the stator assembly comprises a stator iron core for conducting magnetic flux and a stator winding which is wound on the stator iron core and is used for generating a magnetic field; the rotor assembly is rotationally matched with the stator assembly through the rotating shaft; the high-power motor further comprises a heat dissipation mechanism, and the heat dissipation mechanism is used for conveying refrigerating fluid to exchange heat with the stator iron core. The rotor assembly comprises a rotor seat and a magnet arranged on the rotor seat, the rotor seat is arranged on the rotating shaft in a sleeving mode, a heat dissipation air channel communicated with the outside of the machine shell is arranged in the rotor seat, and the heat dissipation air channel is used for heat dissipation of the rotor assembly. According to the invention, the heat dissipation mechanism is arranged to dissipate heat of the stator assembly, and air cooling heat dissipation is carried out on the interior of the rotor assembly through the heat dissipation air duct, so that rapid transfer and dissipation of heat are realized, and the operation stability of the motor is improved.

The invention provides an air-cooled energy storage converter and a converter unit. According to the air-cooled energy storage converter and the converter unit provided by the invention, on one hand, the flow direction of air can be controlled by optimizing the structural layout and the air duct structure, so that the smoothness of air flow and the high efficiency of cooling can be ensured, heat dissipation can be performed in a targeted manner, and the cooling efficiency can be improved under the condition that a fan is arranged in the converter unit; the air flows according to a set route, so that the purpose of heat dissipation is achieved, and the problem of an external fan or a plurality of internal fans is avoided; on the second aspect, different functional modules are installed at different positions, and heat dissipation paths of the power module and the reactor are separated, so that mutual interference of heat between different modules can be avoided, it is ensured that the heat cannot be gathered in the cabinet body, the overall heat dissipation efficiency can be improved, and the service life of the cabinet body is prolonged. And the special design of the air duct facilitates the disassembly and assembly of the air duct and the internal module, reduces the influence on the whole converter caused by the fault of a single module, and can improve the convenience of maintenance.

The invention discloses a device and a method for preparing an easy-to-penetrate cable protection pipe, and the device and the method are applied to the technical field of cable protection pipe preparation. A cooling channel formed in the protection pipe body through the internal air cooling assembly firstly makes contact with the interior of the just-extruded high-temperature protection pipe to rapidly absorb internal heat, meanwhile, the external spraying assembly sprays cooling liquid to the outer surface of the protection pipe body to further take away the heat, and the interior and the exterior of the protection pipe body are cooled at the same time; the internal air cooling assembly directly acts on the core part of the protection pipe main body and is combined with the external spraying assembly, so that the temperature gradient is effectively reduced, cooling of all parts of the protection pipe main body is more uniform, and size deviation and performance difference caused by uneven cooling are reduced.

The invention relates to the technical field of electric welding machines, in particular to a dynamic heat dissipation control method and system for an intelligent electric welding machine. A heat load real-time calculation and heat accumulation trend prediction step; a dynamic collaborative heat dissipation strategy generation and execution step: dynamically generating and executing an air cooling heat dissipation strategy, an air cooling and liquid cooling collaborative heat dissipation strategy or a protective heat dissipation strategy according to a comparison result; wherein the control parameters of the air cooling heat dissipation strategy are determined according to the difference value between the predicted temperature and the corresponding threshold value and the environment temperature; the control parameters of the air cooling and liquid cooling collaborative heat dissipation strategy are determined according to the difference value between the predicted temperature and the corresponding threshold value and the environment humidity; and a heat dissipation effect feedback and self-adaptive calibration step. Real-time sensing, thermal load prediction, a dynamic heat dissipation strategy and feedback calibration are combined, the heat dissipation strategy can be dynamically adjusted according to the working environment and the operation state of the electric welding machine, and the stability and reliability of equipment are improved.

The invention discloses an Internet of Things server heat dissipation system and method, and relates to the technical field of server heat dissipation, and the system comprises a cooling device, a heat dissipation device, a circulation device, a server housing, and a supporting device. According to the heat dissipation device, a water-cooling rotating shaft is driven by cooling liquid to rotate anticlockwise, at the moment, the air-cooling rotating shaft is limited by an arc-shaped ring to rotate anticlockwise, the water-cooling rotating shaft drives a second friction wheel to rotate anticlockwise through a limiting block and a semicircular lantern ring, the second friction wheel drives a first friction wheel and air-cooling fan blades to rotate, and therefore the deflection angle of the air-cooling fan blades is changed; when the air cooling fan blades are parallel to the end face of the air cooling rotating disc, the cleaning assembly can automatically pop up and clean the air cooling fan blades. According to the cooling device, cooling liquid in the circulating device enters a second cooling pipe or a third cooling pipe under the action of gravity, then the cooling liquid enters the flow control cylinder, and then the flow control cylinder is combined and communicated through a first cooling pipe or a fourth cooling pipe, so that integrated control over the cooling liquid and the air cooling fan blades is achieved.

The invention relates to a clean energy combustion technology, and aims to provide a rotational flow on-duty multi-element micro-mixing coupling type low-nitrogen combustion device for hydrogen-doped natural gas. Comprising an air cooling cavity, an air bin fixing cavity and a gas bin fixing cavity which are sequentially stacked from top to bottom. An on-duty combustion unit of a sleeve structure is arranged in the center of the burner in a penetrating mode, and micro-mixing combustion units, independent air bins and independent fuel gas bins are evenly arranged in the circumferential direction in a surrounding mode. A plurality of micro-mixing spray pipes are arranged in an air cooling sleeve of the micro-mixing combustion unit in the axial direction in an array mode, and fuel spray pipes are arranged on a second fixed disc in the axial direction in an array mode. The closed end of the fuel spray pipe extends into the micro-mixing spray pipe corresponding to the fuel spray pipe, and a fuel gas inlet is formed in the bottom of the fuel gas bin fixing cavity. After external air is introduced through an air circulation path from top to bottom to cool the head of the combustor, the heated air is mixed with fuel for combustion, and safe, efficient and low-emission application of natural gas large-proportion hydrogen-doped fuel is achieved.

The invention relates to a heat management waterway integration module, a vehicle heat management system and a control method, the heat management waterway integration module is provided with a plurality of interfaces, and a runner plate is internally provided with a plurality of runners communicating with the corresponding interfaces; the six-way valve and the five-way valve are arranged on one side surface of the runner plate and are used for controlling the on-off of the corresponding runners; the battery water pump and the electric drive water pump are arranged on the other side face of the flow channel plate and used for driving media in the corresponding flow channels to flow to the corresponding connectors. Wherein the plurality of interfaces are provided with interfaces used for being connected with at least one or more of an electric drive cooling liquid loop, a battery cooling liquid loop and an air conditioner warm air cooling liquid loop, so that the pump, the valve and the heat exchanger are integrated, connecting pipelines among parts are reduced, the arrangement space is compact, the parts are reduced, and the arrangement complexity is reduced; the assembly time is reduced; switching and coupling of control modes can be carried out by controlling the six-way valve and the five-way valve, series-parallel connection of different loops is achieved, and different thermal management requirements are met.

The invention relates to the technical field of explosion-proof permanent magnet motors, and discloses a low-voltage explosion-proof dust explosion-proof permanent magnet motor which comprises an explosion-proof shell, a front end cover and a rear end cover, the front end cover and the rear end cover are arranged on the two sides of the explosion-proof shell respectively, and the front end cover and the rear end cover are both attached to the explosion-proof shell. And a dustproof heat dissipation mechanism is arranged on the rear end cover. Through the design of a dustproof heat dissipation mechanism, a connecting rod drives fan blades and a U-shaped plate to rotate, after the fan blades rotate, external airflow is sucked from an air inlet hole to achieve the purpose of air cooling, before the airflow enters, a filter screen filters dust, a cleaning layer cleans away dust on the filter screen when passing through the filter screen, and when passing through a scraper blade, the dust on the filter screen is cleaned away by the cleaning layer; the scraper blade scrapes off dust on the cleaning layer, air-cooled gas is finally discharged through the exhaust hopper, the scraped-off dust can be quickly blown away, the situation that dust explosion is possibly caused by dust gathering is avoided, the application range is wider, and safety is higher.

Provided are a motor (100), a propulsion system and an aircraft. The motor (100) comprises a stator (110), a rotor (120), and a cooling system (200); the stator (110) comprises a housing (111); one end of the rotor (120) is rotatably connected to the housing (111) by means of a first bearing (600); the cooling system (200) comprises an air cooling structure (210) and a liquid cooling structure (220); the air cooling structure (210) is arranged on the rotor (120) and the stator (110); and the liquid cooling structure (220) is arranged on the stator (110).

The invention relates to the technical field of laser cutting machines, and discloses a laser cutting machine with a liquid cooling structure and a using method.The laser cutting machine comprises a machine tool, a laser is fixedly installed on a movable portal frame at the top of the machine tool, the side wall of the top of the laser is fixedly sleeved with a water tank, and a heat conduction cover is arranged under the water tank; and the heat conducting cover is rotationally sleeved at the bottom of the laser. According to the laser cutting machine of the liquid cooling structure and the using method, the motor transmission structure synchronously drives the liquid cooling component and the air cooling component to operate, air flow can conduct auxiliary cooling and plate surface cleaning while liquid cooling circulation cooling is conducted, the size of an air cooling nozzle of the device can be automatically adjusted, and the working efficiency is improved. The cooling structure is used for cooling a laser emission port and a metal plate cutting part in a large range, the risk of high-temperature deformation of the cutting part is reduced, and meanwhile, the cooling structure of the device can reciprocate within a certain angle so as to improve the heat dissipation uniformity.