656 results about "Cooling power" patented technology

The invention discloses a machine tool control method and system based on mechatronics, and the method comprises the steps: outputting an optimal cutting track sequence according to the three-dimensional model features and material attribute parameters of a machined workpiece; based on the optimal cutting track sequence, motion interference among shafts of the machine tool is eliminated through dynamic weight distribution, and an anti-interference optimization machining instruction is generated; constructing a nonlinear vibration wave propagation model according to the coupling relation between the spindle rotating speed and the feeding speed, and generating a steady speed regulation and control signal; generating an energy efficiency optimal parameter set including motor torque, cooling power and lubricating frequency based on the energy consumption efficiency constraint condition and the steady speed regulation and control signal; and outputting a closed-loop control signal and synchronously updating the three-dimensional machining precision thermodynamic diagram according to the real-time data in the machining process and the predicted deviation of the digital twin model. According to the embodiment of the invention, global optimization, dynamic adaptation and efficient operation of the machine tool can be realized, and technical support is provided for intelligent upgrading of the modern manufacturing industry.

The invention provides a new energy automobile battery thermal management method and system based on big data. The method comprises the steps that real-time data flow and a historical temperature change curve in a battery pack are collected in real time through a distributed sensor array; inputting a pre-trained time sequence prediction model, outputting a predicted temperature change curve and calculating a real-time temperature rise slope; obtaining an environment comprehensive compensation amount according to the environment temperature and the battery health state, and subtracting the environment comprehensive compensation amount from the basic safety threshold value to obtain a dynamic safety threshold value; determining a dynamic temperature compensation amount through a preset slope grading mechanism, and subtracting the dynamic temperature compensation amount from the dynamic safety threshold to obtain an advanced intervention temperature point; and when the temperature of the battery pack reaches the advanced intervention temperature point, a graded cooling system is started, and cooling power grades are dynamically switched according to the growth interval where the real-time temperature rise slope is located. The battery temperature is accurately controlled, and the energy consumption is remarkably reduced.

The invention discloses a lithium ion power battery thermal management online regulation and control method comprising the following steps: obtaining battery pack temperature data, and carrying out statistical analysis on the battery pack temperature data to obtain temperature fluctuation distribution characteristics; according to the temperature fluctuation distribution characteristics, cooling power output information is obtained through a feedback control method; obtaining a power allocation weight according to the cooling power output information, and carrying out prediction simulation on the temperature field according to the power allocation weight to obtain predicted temperature field distribution; the heat conductivity coefficient of a variable thermal interface material in the cooling system is adjusted according to the predicted temperature field distribution, a thermal diffusion path optimization scheme is obtained, a dynamic thermal channel network is constructed according to the thermal diffusion path optimization scheme, and a cooling strategy is obtained through matching according to the dynamic thermal channel network in combination with the running state of the battery; hierarchical control parameters are extracted from the cooling strategy, and an energy distribution optimization scheme is obtained; and according to the energy distribution optimization scheme, controlling a cooling system of the lithium ion power battery to realize thermal management regulation and control.

The invention belongs to the technical field of intelligent building energy management, and particularly discloses and provides a dual-mode cold storage air conditioning system based on human flow dynamic cooperative regulation, which comprises the following steps: acquiring dynamic human flow thermodynamic diagram data in real time, and accurately calculating a multi-region linkage cold load demand value based on a density change correlation coefficient and a heat conduction model; the real-time sensing of the flow density fluctuation and the dynamic refrigeration demand matching are realized; the phase change state of the coolant of the cold storage tank and the power consumption data of the refrigerating unit are collected in real time, the cold storage release proportion, the refrigerating power increment and other key parameters are dynamically adjusted, and the energy utilization rate is increased; the inherent defect of non-uniform cold and heat in zone control is overcome by calculating inter-zone cooling capacity migration parameters; temperature feedback data and a people flow thermodynamic diagram are collected in real time, the proportionality coefficient of the fan rotating speed and the air valve opening degree is dynamically adjusted, a closed-loop learning mechanism is formed, and the matching precision of a temperature control strategy and people flow distribution is continuously optimized.

The invention provides a split type direct-current charging pile liquid cooling heat dissipation system, and belongs to the technical field of direct-current charging piles, a closed liquid cooling circulation system is constructed through equipment such as a liquid cooling circulation pump, a radiator assembly and a temperature sensor array, and active temperature control is realized by adopting a temperature pre-adjusting module as a core. The system firstly collects power and temperature data to establish a power heat effect function to describe a power-temperature relationship, and extracts temperature time sequence characteristics through a heat situation sensing model by adopting an improved time sequence convolutional network to configure a self-adaptive receptive field adjustment mechanism to capture different time scale change modes; and constructing a double-layer optimization framework in combination with a temperature control game model to solve a Nash equilibrium solution, and calculating an optimal cooling adjustment vector including advanced cooling time and cooling power parameters. And a change curve is generated through real-time monitoring and dynamic correction and is converted into a control instruction, the frequency converter is controlled to adjust the rotating speed of the circulating pump and the opening of the flow valve, and advanced adjustment before temperature change is achieved to eliminate response lag.

The invention, which relates to the technical field of energy system regulation and control, provides a seasonal multi-scene-driven adaptive regulation and control system for a park integrated energy system, comprising a seasonal feature intelligent extraction module, a multi-scene plan library construction module, a three-party non-cooperative game model module and an adaptive execution module. The seasonal feature intelligent extraction module is used for decomposing historical load data, extracting seasonal feature parameters and generating an energy supply priority sequence; the multi-scene pre-arranged plan library construction module is used for constructing a regulation and control pre-arranged plan for coping with electricity price fluctuation, equipment faults, extreme weather and production scheduling, and realizing multi-target dynamic balance; the three-party non-cooperative game model module is used for defining strategy spaces and revenue functions of an energy supply side, an energy consumption side and an energy storage side; according to the method, through dynamic operation of the seasonal feature vector and the load incidence matrix, accurate adjustment of the energy supply priority is achieved, the refrigeration power supply response time in summer is shortened, and the waste heat recovery efficiency in winter is improved.

The invention relates to the technical field of graphene, and discloses a deep skin anti-wrinkle beauty instrument applying a graphene electrothermal effect and a control method, the method comprises the following steps: pre-activating a graphene electrothermal film to obtain a negative temperature coefficient resistance characteristic parameter; performing contact state detection and multi-parameter analysis on the target area to obtain personalized temperature control parameters; pWM sectional power control is carried out on the graphene electrothermal film based on the personalized temperature control parameters and the negative temperature coefficient resistance characteristic parameters, and a staged heating temperature output strategy is obtained; real-time feedback adjustment is carried out based on a staged heating temperature output strategy, and a stable temperature control signal is obtained; the graphene electrothermal film is subjected to gradual cooling power adjustment according to the stable temperature control signal, meanwhile, the safe stop state of the beauty instrument is confirmed, the unique characteristic that the resistance value is reduced when the temperature of the graphene material rises is utilized, and compared with a traditional linear resistance material, the temperature control precision and the response speed are higher.

The invention discloses an orthogonally stacked double-sided cooling power module and a preparation method thereof. The orthogonally stacked double-sided cooling power module comprises a decoupling capacitor, a copper-clad ceramic substrate, a power chip and a metal cushion block, the metal cushion blocks and the power chips are stacked and connected layer by layer in a metal cushion block-power chip-metal cushion block mode to form a series chipset, and the copper-clad ceramic substrate is connected with the two sides of the metal cushion blocks in the series chipset and is perpendicular to the power chips. According to the invention, through the cooperative effect of orthogonal stacking packaging and double-face cooling of the double copper cushion blocks, the electrical and thermal performance of the cooling power module is cooperatively optimized, the parasitic inductance of the power module is significantly reduced, the transient over-current supporting capability is significantly improved, and the packaging technology has good flexibility and is suitable for large-scale production. The method is suitable for power modules of different packaging types.

Disclosed in the present invention are a liquid cooling system for a charging pile and a control method and control device for a liquid cooling system. The system comprises: a water pump, a water outlet of which is connected to a water inlet of a liquid cooling power module of a charging pile; a water tank, a water outlet of which is connected to a water inlet of the water pump, a coolant being stored in the water tank; a heat exchanger, which has a coolant inlet connected to a water outlet of the liquid cooling power module and a coolant outlet connected to a water inlet of the water tank; an output-coolant temperature sensor, which is arranged at the water outlet of the water pump and is configured to acquire the temperature of the output coolant; and N liquid cooling loops connected in parallel, wherein the N liquid cooling loops share one heat exchanger and one condenser, and the N liquid cooling loops are sequentially connected on the basis of the temperature of the output coolant, so as to cool the coolant that flows into the heat exchanger, where N is a positive integer greater than or equal to 2. The liquid cooling system of the present invention is constituted by the plurality of liquid cooling loops connected in parallel, so that the refrigeration and heat dissipation effects are good, and the reliability of the system is relatively high.

The invention provides an intelligent cooling capacity distribution method and system for a data center refrigeration system, and relates to the technical field of data center refrigeration. Through the thermal model based on data driving, airflow distribution and temperature field change are accurately simulated, thermal load prediction errors are effectively reduced, and high-precision data support is provided for cold distribution, so that the energy utilization efficiency and the refrigeration efficiency are improved, and energy efficiency improvement and reliable operation of a data center refrigeration system are achieved. And meanwhile, the interaction among heat transfer, power consumption and a control strategy is comprehensively considered, the overall efficiency loss caused by local optimization is avoided, and the comprehensive energy efficiency of the refrigerating system is improved. Besides, the cooling capacity distribution optimization model is constructed based on the power-cooling capacity characteristic curve, so that the optimal balance between the cooling power and the cooling index is realized, and the PUE is effectively reduced.

The invention provides a low-stress double-sided cooling power module and a manufacturing method thereof, the low-stress double-sided cooling power module comprises a first copper-clad ceramic substrate and a second copper-clad ceramic substrate which are oppositely arranged, the first copper-clad ceramic substrate is provided with at least two power chips, and two sides of each power chip are provided with C-shaped auxiliary support column connecting layers; and the lower surface of the second copper-clad ceramic substrate is provided with an inverted metal buffer cushion block which is arranged opposite to each power chip. The inverted metal buffer cushion block comprises a connecting frame with a groove, an auxiliary supporting column connected with the connecting frame is arranged at the position, corresponding to the auxiliary supporting column connecting layer, of the connecting frame, a protruding quadrangular frustum pyramid heat conduction structure is arranged in the groove of the connecting frame, and the bottom of the inverted quadrangular frustum pyramid heat conduction structure is connected with a power chip. The inverted metal cushion block constructs an optimized heat conduction path for the power module, so that heat generated in the working process of the chip can be efficiently conducted to an external heat dissipation environment through the metal cushion block, and the junction temperature of the chip is effectively reduced.

The invention belongs to the technical field of motors, and relates to a vertical magnetic suspension motor. On the basis of the magnetic bearing control module, the cooling control module and the control evaluation module, closed-loop control of the rotor stably suspending at the target position is achieved, oscillation and steady-state errors are reduced, and the control precision is effectively improved; by dynamically calculating the temperature gradient difference and the cooling power regulation and control value and combining the PID controller and the liquid cooling / air cooling cooperation strategy, on-demand cooling is achieved, the cooling energy consumption is reduced, the temperature balance is improved, and the problems of local overheating or too high energy consumption are avoided; by performing normalized weighted analysis on key parameters such as magnetic bearing energy efficiency and cooling efficiency, feeding back control evaluation coefficients in real time and guiding system parameter optimization, the stability and reliability of long-term operation of the motor are ensured, the failure rate of the motor is reduced, the functional integrity is ensured, and system-level optimization is facilitated.

The invention relates to the technical field of battery thermal management, in particular to an immersed liquid-cooled power battery thermal management system, which is provided with a data processing unit and integrates a plurality of modules such as a data storage module, a data analysis module, a data control module and the like, and the data storage module can store real-time data of a cooling unit and can also store normal operation data information. The data analysis module carries out comparative analysis on real-time data and normal operation data and accurately grasps the temperature change trend, and the data control module carries out intelligent control on the whole thermal management system according to a preset strategy and an analysis result, so that the working state of the cooling unit is accurately adjusted; the rotating speed of the circulating pump and the working strength of the radiator are adjusted according to the difference between the highest temperature of the battery cell and the initial temperature of the cooling liquid to ensure efficient operation of the system.

The present invention discloses a dynamic heat dissipation control method and system for a green clean energy intelligent energy storage cabinet, which relates to the technical field of temperature control of energy storage cabinets. Time periods are divided and nodes are set at equal intervals for real-time collection of actual data. An information-driven joint prediction network is used to consider the randomness and intermittency of wind power generation and photovoltaic power generation, and node wind power prediction and node photovoltaic power prediction are carried out. A time-frequency conversion trend enhancement network is used to enhance the temporal trend of the load power for node load prediction. A multi-modal integrated learning network is used to consider the correlation between the substation power and the temperature of the energy storage cabinet, and accurate node temperature prediction is performed. Whether to use the PID algorithm to confirm the predicted cooling power for temperature reduction regulation is decided through node state judgment, and the constraint supply-demand balance equation corresponding to the state is selected to predict the substation power, improving the utilization rate of renewable energy. Using the predicted cooling power for temperature reduction regulation also effectively reduces energy consumption, ensuring the stability, safety and environmental protection of the energy storage cabinet.

The invention discloses a battery thermal management strategy determination method, device and equipment, a medium and a vehicle, a plurality of working conditions of a battery and battery body heating power corresponding to each working condition are determined, temperature rise corresponding to each working condition is determined in sequence according to a descending order of closeness of the working conditions and a preset charging cut-off working condition, and the battery thermal management strategy is determined according to the temperature rise. And determining a first working condition in which the sum value of the set temperature included in the plurality of working conditions and the corresponding temperature rise is greater than the maximum temperature, and determining a cooling power starting temperature threshold corresponding to each set SOC in the plurality of working conditions according to the set temperature included in the first working condition. According to the embodiment, the cooling power starting temperature threshold values corresponding to the multiple set SOCs can be determined, transient thermal management of the battery can be achieved based on the cooling power starting temperature threshold values corresponding to the multiple set SOCs, and compared with a traditional method for determining thermal management based on an initial working condition for thermal management, transient thermal management is more accurate, and the reliability of thermal management is improved. And the battery charging rate can be effectively improved.

The utility model relates to a static immersion liquid cooling power battery pack in the field of battery packs, which comprises a box body and a box cover, an accommodating cavity for mounting a battery cell module is formed in the box body, a mounting groove is formed in the box cover through die casting, a heat dissipation plate is connected in the mounting groove through a heat preservation layer, a heat dissipation pipeline is arranged on the heat dissipation plate, and the heat dissipation pipeline is communicated with the accommodating cavity. A heat dissipation pipeline is arranged in the heat dissipation plate, a pipeline groove used for embedding the heat dissipation pipeline is formed in the contact face of the heat dissipation plate and the heat preservation layer, a refrigerant is guided into the heat dissipation pipeline through an inlet, and the containing cavity is filled with static cooling liquid. And a refrigerant flows along the heat dissipation pipeline, so that contact refrigeration is carried out on the heat dissipation plate, and heat exchange refrigeration is carried out on the cooling liquid through the heat dissipation plate, so that the heat in the accommodating cavity is carried out and is led out through a lead-out opening of the heat dissipation pipeline, and the temperature uniformity and the use stability of the battery cell module are further maintained.

The invention discloses a distributed parallel operation control system and method based on a high-power water-cooled power supply. A CAN interface is used for receiving and transmitting protocol signals output by each device in real time; the ARM control system is used for starting a CAN protocol control algorithm, analyzing data and signals received by the CAN interface, judging whether output current of an equipment system is changed or not, judging whether adjustment is needed or not, detecting equipment disconnection or adding of new equipment or the like, and determining the running parameter state of the water-cooling power supply; the power control system feeds back to the ARM control system in real time, calculates an output current value and sends the output current value to the power control system, and the power control system controls loop output power and generates a current sharing control signal. A control command is transmitted through a CAN parallel operation cable and a customized interface protocol to realize parallel operation of a plurality of power supplies and management of the number of the power supplies on the bus, the operation state and logic control. And reliable, stable and rapid data communication and autonomous and controllable distributed parallel operation control can be realized.

The invention relates to a semi-immersed semi-cold plate type mixed liquid cooling power supply module, which comprises a device cavity, a cooling liquid flowing cavity, a first heating assembly and a second heating assembly, the device cavity is filled with a gas medium, and the cooling liquid flowing cavity is filled with cooling liquid; the cooling liquid flowing cavity is arranged in the device cavity, the first heating assembly is contained in the cooling liquid flowing cavity and is immersed in the cooling liquid, and the second heating assembly is contained in the device cavity and is contained outside the cooling liquid flowing cavity. The second heating assembly is arranged on the outer wall of the cooling liquid flowing cavity. Through the cavity-in-cavity structure, the heat dissipation requirement of the first heating assembly contained in the cooling liquid flowing cavity and immersed in the cooling liquid is met, and the heat dissipation requirement of the second heating assembly arranged on the side wall, making contact with the gas medium, of the cooling liquid flowing cavity is also met; and the advantages of cold plate type liquid cooling and immersed liquid cooling can be combined respectively.

The invention discloses an axle staged cooling system, an axle staged cooling assembly and an engineering vehicle. The axle staged cooling system comprises an engine first-stage cooling system, an engine second-stage cooling system, an axle first-stage cooling system and an axle second-stage cooling system. Each stage of cooling system controls cooling water and oil path trend through a thermolator in each loop, controls axle cooling oil and engine cooling water to exchange heat, and meets different cooling requirements of an axle. The temperature sensor in each loop outputs water and oil temperature signals to a motor of the cooling fan, so that the rotating speed of the fan is increased to different degrees along with the temperature rise of each cooling system, and different cooling powers are matched. According to the grading system, the engine and the axles can work at the proper temperature at the same time, the two heat exchangers cool cooling oil of the front axle, cooling oil of the middle axle and cooling oil of the rear axle respectively, the cooling capacity of the front axle is improved, the braking effectiveness of the front axle is guaranteed, and rollover caused by serious backward movement of the gravity center of a vehicle during emergency braking is prevented.

The present disclosure relates to a water-cooled integrated charger and discharger, which provides a charger and discharger comprising: a charging and discharging jig configured to charge and discharge a battery; a water-cooled power supply part configured to supply a power source to the charging and discharging jig and configured to be cooled with water; and a chiller connected to the water-cooled power supply part through a water-supply pipe and a drainpipe, and configured to release heat energy generated from the water-cooled power supply part to an exterior environment.

The invention relates to an intelligent refrigeration control method based on dynamic computing power distribution, electronic equipment and a computer storage medium. The method comprises the following steps: acquiring a whole-network multi-dimensional data stream, acquiring data in real time through a distributed sensor network, and performing multi-source data fusion and space-time alignment to form a monitoring data set; according to the monitoring data set, a temperature field is generated based on computational fluid dynamics (CFD), and through automatic closing of a cold and hot channel, the air supply amount is adjusted to be matched with a thermal load; predicting a high-load area based on a load prediction model, and dynamically migrating computing power to a low-temperature area or dormant redundant nodes in combination with real-time temperature distribution; a multi-target optimal regulation and control model is constructed, and based on reinforcement learning, the coupling relation among the IT load, the environmental parameters and the refrigeration power consumption is continuously optimized; through energy consumption statistics and analysis, automatic early warning is carried out on abnormal energy consumption and local overheating, and a thermal anomaly area is dynamically displayed through a multi-dimensional chart. According to the invention, deep collaboration of the computing power of the data center and the refrigeration system is realized.

The invention relates to the technical field of power equipment, in particular to an intelligent thermal management system for a cleaning robot, which comprises a state sensing unit, a risk assessment unit, a thermal state calculation unit, a data decision unit, an execution unit and a feedback correction unit, and is characterized in that the state sensing unit is used for acquiring internal temperature and humidity and key component temperature; the risk assessment unit calculates the characterization values of the dew formation trend and the overheating trend; the thermal state calculation unit quantifies the overall thermal state of the system; the data decision-making unit determines the actual adjustment amount of the heating and cooling power according to the parameters; the execution unit comprises a heating module, a cooling module and a load management module and correspondingly adjusts output power. And the feedback correction unit corrects the thermal state according to the operation deviation. According to the invention, through multi-parameter fusion decision and dynamic power adjustment, collaborative management of heat dissipation and condensation prevention is realized, and the working reliability of the cleaning robot in a severe environment is improved.

The invention relates to a cooler for cooling power semiconductors by means of a cooling fluid, comprising a cover plate, which can be provided on a power semiconductor; a channel plate, which is designed to form, together with the cover plate, a closed cooling channel for the cooling fluid; an insert, which is provided in the cooling channel, said insert being designed to increase the contact surface between the cooling fluid and the cooler; and a stiffening plate, which lies opposite the cover plate on a connection surface on the channel plate, said stiffening plate having a specified thickness which is designed to adapt the stiffness of the cooler in order to allow a constant stiffness for different cooling channel geometries.

To provide a sintered compact production apparatus which can reduce the cooling power of a microwave oscillator and further can reduce the heating energy of an object to be heated caused by microwaves.SOLUTION: A sintered compact production apparatus 1 provided with a microwave heating device 2 having a microwave oscillator 21 which oscillates microwaves, a wave guide 22 which is connected to the microwave oscillator 21 and a microwave heating furnace 23 where the microwaves are propagated via the wave guide 22, and is configured to heat an object 5 to be heated in the microwave heating furnace 23 with the microwaves, comprises: an air cooling type cooling device 4 which feeds air to the microwave oscillator 21 and cools the same; and a preheater 3 which preheats the object 5 to be heated with the air which has fed from the air cooling type cooling device 4 to the microwave oscillator 21 and has recovered heat generated in the microwave oscillator 21.SELECTED DRAWING: Figure 1

The invention provides a water-oil combined heat dissipation power module. On the basis of an existing water-cooling power module, a circulating oil way defined by a second cavity, a flow guide cover, a heat dissipation device, a circulating oil pump and related necessary connecting pipelines is additionally arranged. When the power module works, cooling water flows in from the near end of the power module and flows out from the far end of the power module below the radiator, in the process, the water temperature rises while the cooling water dissipates heat of the bridge arm chips, and the heat dissipation effect of the cooling water on the bridge arm chips is sequentially decreased from the near end to the far end. Meanwhile, the cooling oil circularly flows, flows through a cavity formed by the flow guide cover and the radiator after flowing out of the circulating oil pump and is directly cooled on the surface of the power chip, the oil temperature is increased while the cooling oil dissipates heat of the bridge arm chips, the heat dissipation effect of the cooling oil on the bridge arm chips is sequentially decreased from the far end to the near end, and the heat dissipation efficiency of the cooling oil on the bridge arm chips is greatly improved. And the heat dissipation effect is just opposite to that of the cooling water path. According to the technical scheme, the problem that an existing power module is not uniform in heat dissipation can be solved.

The invention belongs to the technical field of semiconductors, and discloses a power semiconductor module packaging framework and a design and preparation method thereof. A first copper-clad ceramic substrate; interconnection of the upper surface and the lower surface of the power semiconductor chip is realized through the solder layer; the carbon reinforced metal matrix composite material cushion block is bonded with the upper surface of the chip through the solder layer; a second copper-clad ceramic substrate; a second heat sink base plate; compared with a traditional material, the heat dissipation performance is improved by more than 30%, the heat resistance can be remarkably reduced, and the heat dissipation performance is improved. The thermal expansion coefficients of the diamond / aluminum, the diamond / silver, the graphene / silver and the graphene / copper are better matched with those of the power semiconductor chip, so that the packaging framework can reduce the interface thermal stress by more than 35%, the possibility of interface layering caused by thermal circulation is reduced, and the reliability of the double-sided cooling power semiconductor device is greatly improved. According to the innovative scheme, the problem of heat-force mismatch in traditional double-sided cooling packaging is effectively solved.

The invention relates to the technical field of cabinet management, in particular to an intelligent cabinet temperature control management system and device and a using method. According to the method, the current cooling requirements of all the cabinets are effectively recognized by collecting the heat load related parameters of the cabinets, calculating the temperature difference between the interiors of the cabinets and the air inlet and outlet and combining the equipment operation power to analyze the matching degree between the heat dissipation capacity and the load state; and the cooling power required to be supplemented or reduced can be dynamically calculated when the running state of the system is not obviously changed, so that the perspectiveness and the accuracy of temperature control response are guaranteed. According to the method, the actual cooling requirements of the cabinets are associated with the power headroom of the corresponding cooling equipment, then a balance constraint condition is established, an optimization solution mode is adopted after slack variables are introduced, the optimal cooling power output of each cooling equipment under the requirements of the multiple cabinets can be dynamically calculated, and cooling power distribution is more coordinated and adaptive.

The invention belongs to the technical field of green traffic electric vehicles and aircrafts, particularly relates to an integrated electric duct power device and a cooling method thereof, and aims to improve the integration level of an air-ground maneuvering platform and an aerocar propulsion system and achieve the lightweight design target of a propulsion device. The integrated electric duct power device provided by the invention comprises a duct, propellers, a supporting bracket, a permanent magnet bracket, a carbon fiber sleeve, a permanent magnet, a stator iron core, a stator winding, a partition plate and a motor controller, a rotor of a motor and propeller blades are integrally designed, a motor stator and a motor controller are designed into a duct, shell sharing is achieved, meanwhile, through power device air-oil mixed cooling of motor stator and motor controller oil immersion and motor rotor air cooling, pipelines are reduced, an oil tank in a maneuvering platform is omitted, and cost is reduced. And therefore, the design of the light-weight integrated electric duct power device is realized.

The invention relates to a method for controlling the temperature of an X-ray device, comprising: - Acquiring planning information comprising at least one operating parameter of at least one component of the X-ray device for a planned operation of the X-ray device, - identifying a planning temperature of the at least one component of the X-ray device based on the at least one operating parameter, - Operating the X-ray machine according to the planning information, wherein a temperature control unit of the X-ray device is controlled before and / or during operation of the X-ray device based on the planning temperature such that the temperature control unit tempers the at least one component of the X-ray device to a predefined temperature or a predefined temperature range by providing a heating and / or cooling power. The invention further relates to an X-ray device and a computer program product.

The present invention relates to a cooling fin arrangement (1) of a cooler, through which fluid can flow, for cooling power electronics (200). The cooling fin arrangement (1) comprises at least one cooling fin (10), which is formed from a wave profile that periodically repeats in a direction of repetition (501), the direction of repetition (501) being perpendicular to a flow direction (500). The invention also relates to a cooler, through which fluid can flow, for cooling power electronics (200), the cooler comprising a cooling fin arrangement (1) of this type, and to a power electronic assembly (1000), comprising power electronics (200) and a cooler (100) of this type, through which fluid can flow.