165 results about "Hybrid heat" patented technology

The invention relates to the technical field of chip heat dissipation, and discloses a photoelectric co-packaging heterogeneous chip heat dissipation integration method, device and equipment, and the method comprises the steps: carrying out the finite element modeling analysis of a photoelectric co-packaging heterogeneous chip, and obtaining a three-dimensional thermal characteristic model; performing signal acquisition and frequency domain characteristic analysis on each functional module of the photoelectric co-packaged heterogeneous chip to generate power consumption prediction data; performing temperature field distribution calculation on the photoelectric co-packaging heterogeneous chip according to the power consumption prediction data and the three-dimensional thermal characteristic model, and constructing a temperature outer ring control model and a heat flow inner ring control model; and performing heat dissipation structure layout optimization calculation based on the temperature outer ring control model and the heat flow inner ring control model, and generating a hybrid heat dissipation layout scheme. Dynamic distribution of heat dissipation power and automatic threshold adjustment are realized, frequent mode switching is avoided, and the thermal characteristic stability of a chip is improved.

The invention provides a data center and pumped storage power station combined operation system and method. The system comprises an upper reservoir, a lower reservoir, a data center and a pumped storage power station. Wherein an air conditioning system is mounted in the data center; the air conditioning system comprises a heat exchange station, a hybrid heat exchanger and an air conditioning terminal. The system has the following advantages: 1, energy conservation and consumption reduction: a natural low-temperature water source is utilized, and the power consumption of a data center cooling system is greatly reduced; 2, the efficiency is improved: the cooling efficiency of the data center is obviously improved through an efficient heat exchange system; 3, the cost is reduced: the power use cost and the maintenance cost of air conditioning equipment are reduced, and the operation cost of the data center is reduced. And 4, environmental friendliness: the power consumption is reduced, the carbon emission is reduced, and the method is more environment-friendly. 5, initial investment is reduced: a natural cold source is utilized, and a refrigeration air-conditioning system of the data center is omitted, so that the initial investment is reduced; the pumped storage power station provides a UPS function for the data center, and initial investment is further reduced.

A hybrid heat pump system comprising a heat pump loop integrated with a hydronic loop. The hybrid heat pump system offers multiple modes of operation to provide increased versatility and improved performance. Each of the loops can operate independently. In addition, the loops can operate in conjunction with each other in both heating and cooling modes. Still further, the hydronic loop can provide a reheat function when the heat pump loop is operating in the cooling mode to provide improved dehumidification of the air delivered to the conditioned space. The heat pump loop may include a hot gas bypass functionality for capacity control and / or freeze protection. The hydronic heat exchanger and the space heat exchanger of the heat pump loop may be combined in a compact single slab construction with a slit fin preventing cross-conduction between the heat exchanger sections.

The invention discloses a hybrid heat dissipation type power transformer, and relates to the technical field of power transformers. The dry-type transformer comprises a mounting box, a dry-type transformer body and a mixed heat dissipation system. A cooling fan and an air outlet barrel are arranged at the rear end of the mounting box, a fan rotating shaft is connected with a self-cleaning filter barrel cover, vibration dust removal of the filter barrel cover is achieved through cooperation of a spring, a brush plate and a knocking spherical surface, and dust enters a detachable collecting box through a collecting opening. Profiling cooling fins are arranged in the mounting box and tightly attached to the transformer body, liquid cooling heat dissipation is carried out on the outer portion of the mounting box through a C-shaped cooling fin assembly, and cooling liquid is circularly cooled through the cooling box. The box door is provided with a dustproof air inlet and a rain shielding structure. By combining the air cooling and liquid cooling dual heat dissipation modes, the rotating shaft drives the brush plate to be matched with the filter cartridge cover supported by the spring, dust on the filter screen is automatically cleaned, blockage is avoided, continuous and efficient work of the heat dissipation fan is guaranteed, the internal temperature of the transformer is effectively reduced, equipment damage caused by heat accumulation is avoided, and the service life is remarkably prolonged.

The invention discloses an air energy-soil composite heat pump cross-seasonal energy storage and winter combined heating system and an application method, and relates to the technical field of building energy conservation. Comprising the following steps: acquiring quantitative data of heat unbalance; when a heat unbalance phenomenon exists, determining a soil initial temperature and a maximum rising temperature before heat compensation, and calculating a heat compensation amount; determining a heat compensation operation time period and a system type selection of an air source heat pump; determining an initial rising temperature, a heat compensation initial investment and a preset age limit; the operation cost is determined, when the number of times of heat compensation is larger than a preset year limit, the sum of the initial investment of heat compensation and the operation cost within the preset year limit is recorded, and when it is detected that the total soil temperature increasing value is not lower than the maximum temperature increasing value, the air source heat pump system is determined again; and the strategy with the minimum operation cost and the minimum initial heat compensation investment is used as the optimal soil heat compensation strategy. The system obviously improves the utilization rate of renewable energy sources, and has the advantages of high energy efficiency, wide adaptability and low whole life cycle cost.

The present invention relates to a laser-GMAW full-penetration backing welding method with pre-placed welding wire, belonging to the technical field of welding. The technical solution includes the following steps: (1) The workpieces to be welded are processed with bevels, assembled, and tack welded; (2) During welding, welding wire is pre-placed synchronously in the bevel of the workpiece to be welded to fill the assembly gap of the workpiece to be welded; (3) The laser-GMAW hybrid welding method is used for backing welding. The hybrid heat source first melts the pre-placed welding wire, and the molten pool metal fills the gap in the bevel of the workpiece. Under the action of the hybrid heat source of the laser beam and the GMAW arc, full-penetration backing welding is achieved. The present invention can meet the requirements of single-pass full-penetration backing welding under complex working conditions. By means of pre-placing welding wire, the adaptability of welding to working conditions is significantly increased, the precision requirements for pre-welding processing and assembly are reduced, and at the same time, the welding production efficiency is significantly improved, which is beneficial to the application of automated welding.

The invention discloses a hybrid heat dissipation system of a lightweight motor driver and a control method, and belongs to the technical field of motor heat management and energy-saving heat exchange control, and the hybrid heat dissipation system comprises a data acquisition module, a state estimation module, a threshold value dynamic adjustment module, a state grade determination module and an instruction execution control module. A loss model and a phase change kinetic model are adopted to estimate the melting proportion of the phase change material in each partition in real time, a system task instruction is analyzed to dynamically adjust a judgment threshold value, hierarchical logic comparison is achieved, and a heat dissipation instruction is generated; heat flow distribution is adjusted through space vector pulse width modulation, a boundary layer disturbance device is combined to destroy a fluid boundary layer, and phase change regeneration operation is executed. According to the method, the heat management strategy and the task target can be adaptively coupled, the heat dissipation energy consumption is reduced while high-performance output is ensured, and the continuous working capacity and the overall energy efficiency of the system under high load are improved.

The utility model discloses an edge intelligent agent applied to integration of collection, calculation, storage and transmission, which comprises an upper shell and a lower shell which are communicated with each other, wherein the upper part is provided with a first heat dissipation device which comprises uniform heat dissipation teeth and an area for mounting a top fan; a mounting cavity, a loading plate and a storage module are arranged in the lower part, second and third heat dissipation devices are respectively arranged on two sides, and through grooves in the left and right sides of the shell are correspondingly connected with the two devices. A three-dimensional structure of upper heat dissipation teeth, a top fan and heat dissipation devices on the two sides of the lower portion is adopted, active and passive mixed heat dissipation is combined, and full-area precise heat dissipation, low-load low-energy-consumption temperature control and high-load efficient cooling of a core module of equipment are achieved. The independent mounting cavity and the standardized mounting position are compatible with various domestic modules, are close to a heat dissipation source, optimize a heat flow field to prevent local high temperature, reduce the failure rate, prolong the service life of parts, are integrated, miniaturized and easy to maintain, are designed to adapt to edge scenes, and guarantee stable operation of equipment.

The invention relates to the technical field of heat pumps, and particularly discloses a hybrid heat pump system which comprises a heat source input module, a heat pump circulation module, an energy storage regulation and control module, a flow control module and a central control module. The heat source input module comprises an air source heat exchanger, a ground source heat exchanger and a solar heat collector which are connected in parallel; each heat source outlet is communicated with an evaporator inlet of the heat pump circulation module through a capacity adjusting valve; the heat pump circulation module is a closed loop formed by sequentially connecting a compressor, a condenser, an expansion valve and an evaporator through a refrigerant pipeline; according to the method, the dynamic weight distribution algorithm is set, fuzzy logic and a reinforcement learning model are combined, and the heat source contribution proportion of an air source, a ground source and solar energy is optimized in real time, so that full application of high heat contribution intervals of various heat sources, maximization of system energy efficiency and accurate control of operation cost are realized; and through the arrangement of synchronous control over the rotating speed of the phase change energy storage unit and the rotating speed of the compressor, the economical efficiency of energy utilization is remarkably improved.

The invention relates to the technical field of data processing, in particular to a liquid cooling and air cooling hybrid heat dissipation system for a high-density computing power cluster, and the system collects target heat sensing data through a heat sensing module and obtains a heat forecasting result through a heat forecasting module. The system also obtains a mixed heat dissipation decision by comparing a heat dissipation decision output module with a heat dissipation decision library, senses a potential risk that the heat dissipation capability is close to the limit in advance through a heat safety monitoring module, and judges the state of the rotating speed of the liquid cooling circulating pump. According to the system, a high-density computing power load coefficient is introduced and predictive optimization is carried out based on the state of the high-density computing power load coefficient, so that self-adaptive allocation of air cooling heat dissipation and liquid cooling heat dissipation is conveniently realized, and the heat dissipation efficiency and heat dissipation efficiency of the high-density computing power cluster are improved.

A multiple mode hybrid heat exchanger apparatus is disclosed. The heat exchange apparatus includes a frame assembly having a first end wall, a second end wall, a first side wall, a second side wall, an indirect heat exchange section, a spray system, an intermediate distribution basin, and a direct heat exchange section. A vertical passage is defined by the frame assembly and the direct heat exchange section. A lower air inlet is defined by a plurality of openings in the direct heat exchange section, and the lower air inlet is configured to provide an inlet for air into the vertical passage. The apparatus further includes a cold water collection basin and a fan to induce an airflow through the lower air inlet. The multiple mode hybrid heat exchanger apparatus is selectably configured to operate in an evaporative mode, a dry mode, and an adiabatic mode.

A hybrid cold-plate is configured to cool a processing unit and an adjacent heat-generating component. The hybrid cold-plate has an internally cooled cold plate and a passive heat-transfer component. The internally cooled cold plate has a first thermal interface region configured to be placed into thermal contact with the processing unit and a second thermal interface region configured to be placed into thermal contact with the passive heat-transfer component. The passive heat-transfer component has a first thermal interface region configured to placed into thermal contact with the adjacent heat-generating component and a second thermal interface region configured to be placed into thermal contact with the second thermal interface region of the internally cooled cold plate. A cover plate positioned overtop the internally cooled cold plate and the passive heat-transfer component can be configured to urge the internally cooled cold plate toward the processing unit, the passive heat-transfer component toward the heat-generating component, and the passive heat-transfer component toward the internally cooled cold plate.

A multiple mode hybrid heat exchanger apparatus includes a frame assembly, an indirect heat exchange section, a spray system, an intermediate distribution basin, a direct heat exchange section, a vertical passage, a lower air inlet, a cold water collection basin, and a fan. The direct heat exchange section is disposed below the indirect heat exchange section. The vertical passage is defined by the frame and the direct heat exchange section. The lower air inlet is defined by a plurality of openings in the direct heat exchange section and configured to provide an inlet for air into the vertical passage. The cold water collection basin is disposed below the direct heat exchange section. The fan is to induce a flow of air through the lower air inlet. The multiple mode hybrid heat exchanger is selectably configured to operate in an evaporative mode, a dry mode, and an adiabatic mode.

In one aspect, a hybrid heat exchanger that includes a metallic serpentine tube having an inlet end portion to receive a process fluid, an outlet end portion, and a series of runs and return bends directing the process fluid from the inlet end portion to the outlet end portion of the metallic serpentine tube. The hybrid heat exchanger further includes a thermally conductive polymer body thermally integrated with the serpentine tube. The thermally conductive polymer body has an outer surface to be contacted by a fluid, such as air and / or water. The thermally conductive polymer body is configured to transfer heat between the metallic serpentine tube and the fluid contacting the outer surface of the thermally conductive polymer body. The outer surface of the thermally conductive polymer body includes surface enhancement features that affect flow of the fluid across the outer surface of the thermally conductive polymer body.

The invention discloses an intelligent charging pile, and the pile comprises a central host system which comprises a multi-mode power module group, a triple-redundancy control unit, and a liquid cooling unit. The multi-mode power module group is used for realizing AC / DC (Alternating Current / Direct Current) conversion; the triple-redundancy control unit comprises a main PLC (Programmable Logic Controller), a standby PLC and an FPGA (Field Programmable Gate Array) coprocessor; the liquid cooling unit adopts a double-circulating-pump redundancy design and is used for ensuring the heat dissipation efficiency of the central host system; the intelligent auxiliary pile group comprises a plurality of auxiliary piles, and one auxiliary pile is provided with 1-3 charging terminals; each auxiliary pile comprises a local DC / DC module, an auxiliary controller, a hybrid cooling unit and a power divider; an intelligent charging gun; and a four-stage mixed heat dissipation scheme is adopted. The technical problem that the charging terminals of the whole station are paralyzed easily due to faults of a host and a control system is solved, the heat dissipation efficiency is improved, and the charging power of the charging gun is intelligently allocated and managed.

The invention relates to the technical field of FSRU heat source intelligent scheduling, and particularly discloses an FSRU regasification hybrid heat source scheduling method based on load prediction and rule learning, and the method comprises the steps: collecting basic operation data, marine environment data and coupling association data of an FSRU, and executing data cleaning and standardization preprocessing; and inputting the preprocessed data into a three-dimensional coupling load prediction model, dynamically switching the network structure complexity of the model based on the marine environment parameters acquired in real time, and outputting a load prediction value and a deviation probability. By constructing the environment-load-equipment three-dimensional coupling model and introducing the dynamic switching mechanism, a simplified or complex network structure can be intelligently selected according to the real-time sea condition, and the prediction precision of the influence on the nonlinear environment is remarkably improved while the calculation efficiency is guaranteed.

The invention discloses an efficient heat dissipation system of a small high-power direct-drive motor and a control method of the efficient heat dissipation system, and relates to a motor heat dissipation technology. The system comprises a hybrid heat dissipation assembly, a multi-source data acquisition module, a state prediction module and an optimization control module, the mixed heat dissipation assembly improves the heat dissipation efficiency through cooperation of air cooling and liquid cooling; the multi-source data acquisition module acquires motor temperature, environmental parameters and flight task data in real time, and the state prediction module constructs a dynamic heat dissipation model in combination with flight tasks and meteorological data to predict a future motor temperature change trend; and the optimization control module is used for dividing three heat dissipation modes of conventional heat dissipation, early warning heat dissipation and emergency heat dissipation based on a temperature prediction result, dynamically optimizing the rotating speed of the fan and the liquid cooling flow through a particle swarm algorithm, and realizing multi-target balance among temperature safety, energy consumption and life loss. The system solves the problems of poor environmental adaptability, control lag and high energy consumption of a traditional heat dissipation system, and has the advantages of dynamic heat dissipation efficiency improvement, predictive control and closed-loop life protection.

Embodiments of a hybrid heat sink are disclosed. The hybrid heat sink includes a dry base and a wet base spaced apart from the dry base. The wet base includes a fluid inlet and a fluid outlet. A plurality of air channels are formed between the dry base and the wet base; and a plurality of liquid channels are formed between the dry base and the wet base. The plurality of liquid channels are coupled to the fluid inlet and the fluid outlet, and the plurality of liquid channels are thermally coupled to the plurality of air channels. Other embodiments are disclosed and claimed.

Methods for applying hybrid heat transfer labels to an article are provided. The methods includes non-digitally printing a protective layer onto a carrier layer, digitally printing a graphics layer, non-digitally printing a backer layer, and printing an adhesive. The adhesive and the protective layer can be printed to overlap such that the adhesive and the protective layer bond with each other via chemical-physical interactions upon application of heat and pressure to the protective layer. Additionally, a hybrid heat transfer label assembly is provided that includes a plastic carrier layer, a non-digitally printed protective layer, a digitally printed layer disposed with the non-digitally printed protective layer between the digitally printed layer and the plastic carrier layer, and a non-digitally printed second layer disposed with the digitally printed layer between the non-digitally printed protective layer and the non-digitally printed second layer. The non-digitally printed second layer includes a rubber layer.

A double bypass control extraction steam type hybrid heat exchange frequency modulation system, including a high-pressure cylinder, a medium-pressure cylinder, a low-pressure cylinder, a condenser, a condensate pump, a lower-level low-pressure heater, a first bypass controller connected to the lower-level low-pressure heater through a main pipeline, an upper-level low-pressure heater, a second bypass controller connected to the upper-level low-pressure heater through a main pipeline, a deaerator, a high-pressure heater directly connected to the deaerator through a pipeline, and a reheater whose inlet is connected to the second bypass controller through a pipeline and to the high-pressure cylinder through a steam pipeline, and whose outlet is connected to the medium-pressure cylinder through a steam pipeline. The present invention can quickly respond to the frequency modulation requirements of the power grid to the load changes of the unit, avoid frequent switching of the steam inlet automatic regulating valve during turbine frequency modulation, operate stably and reliably, ensure safe operation of the turbine, significantly improve the life and flexibility of the unit, save energy significantly, and have a large frequency modulation range. It can be widely used in the field of flexible frequency modulation of power plants.

The invention relates to a hybrid heat exchanger comprising a 3D-printed central section (1) optimized for high-temperature heat transfer and surrounded by a tubular section (2) designed for lower-temperature heat transfer. The central section is integrated within the tubular section, thereby optimizing heat transfer while reducing production and operating costs. The 3D-printed central section may include finned layers and triply periodic minimum surface area (TPMS) structures to increase the exchange surface area and improve thermal efficiency. The tubular section may consist of several tubes (smooth, corrugated, or finned) arranged around the central section. The assembly is designed for a coaxial arrangement, ensuring uniform distribution of the heat transfer fluid and mechanical or welded fastening.The invention also minimizes heat loss through an optimized configuration and uses different materials adapted to the thermal conditions of each section. A manufacturing process for this hybrid heat exchanger is also described, including additive manufacturing by laser melting and assembly of components by vacuum brazing or welding. [Fig. 2]

The application belongs to the technical field of battery capacity detection, and particularly relates to a mixed heat dissipation system and a dynamic adjustment method of a multi-chemical system battery capacity detection device, wherein the system comprises a cabinet body, a stepped natural air inlet module, a variable-diameter forced air extraction module, a temperature sensing module and a control module arranged in the cabinet body. In the method, data are obtained through multi-point temperature sensing, and a median value average filtering algorithm is used for processing. The core is that the thermal time constant parameters and the graded temperature intervals of different battery types are preset, the EWMA-AR mixed model is used to predict the trend of the battery micro-environment temperature, and the operation power of the air extraction component is dynamically adjusted in advance. Through the combination of structural design and control algorithm, the application realizes accurate temperature control and energy consumption optimization of various battery capacity detection processes such as lithium ion, lead acid and nickel hydrogen, and effectively solves the problems of poor adaptability, response lag and high energy consumption of the traditional heat dissipation scheme.

The invention discloses a control method and device of a mixed type heat pump device and the mixed type heat pump device. The control method of the mixed type heat pump device comprises the steps that the operation mode of the mixed type heat pump device is obtained; when the operation mode is a simultaneous heating and water heating mode, a first outlet of the three-way valve is controlled to be closed, an inlet of the three-way valve is controlled to be communicated with a second outlet, and the heat pump is controlled to start to operate, so that the heat pump heats water in the water tank; and controlling the first inlet of the water mixing valve to be closed, controlling the second inlet of the water mixing valve to be communicated with the outlet of the water mixing valve, and controlling the boiler to start to operate, so that the boiler heats the liquid flowing into the indoor unit. According to the hybrid heat pump device, the situation that water storage of the water tank is insufficient or the indoor temperature fluctuates due to mutual influence of heating and water heating can be avoided, meanwhile, the problem that the indoor temperature of the environment where the indoor unit is located in an existing hybrid heat pump device is likely to drop or rise slowly is solved, and the user comfort and the user experience are improved.

A heat exchanger including a first component formed of aluminum and / or aluminum alloy and a second component formed of copper and / or copper alloy. The first element and the second element are fused together by furnace brazing. In some examples, the heat exchanger is an aluminum / copper hybrid heat exchanger including an aluminum and / or aluminum alloy component and a copper and / or copper alloy component. The aluminum and / or aluminum alloy component includes a body and / or cover of the hybrid heat exchanger and the copper and / or copper alloy component includes a heat transfer enhancement component, fixedly coupled to the aluminum and / or aluminum alloy component.

The invention discloses an air source and fuel gas hybrid heat pump system, and belongs to the technical field of heat supply. The system is provided with an air source heat pump and a steam type absorption heat pump; the energy storage water tank is connected between the air source heat pump and the steam type absorption heat pump, and the plate heat exchanger is connected between the steam type absorption heat pump and a heat consumer; wherein an outlet of the plate heat exchanger is connected with an inlet of the steam type absorption heat pump, then an outlet of the steam type absorption heat pump is connected with an inlet of the plate heat exchanger so as to form a loop, and an inlet and an outlet of the energy storage water tank are both communicated with a loop pipeline. The air source heat pump and the steam type absorption heat pump are organically combined, and efficient operation of the system under different load conditions is achieved by means of the dual energy advantages of off-peak electricity and steam.

The invention belongs to the technical field of battery capacity grading detection, and particularly relates to a mixed heat dissipation system of multi-chemical-system battery capacity grading equipment and a dynamic adjustment method, the system comprises a cabinet body, and a stepped natural air inlet module, a variable-diameter forced air draft module, a temperature sensing module and a control module which are arranged in the cabinet body. According to the method, data are obtained through multi-point temperature sensing, and a median average filtering algorithm is adopted for processing; the method is characterized in that thermal time constant parameters and grading temperature intervals of different battery types are preset, the trend of the microenvironment temperature of the battery is predicted through an EWMA-AR hybrid model, and then the operation power of an air draft assembly is dynamically adjusted in advance. Through combination of structural design and a control algorithm, accurate temperature control and energy consumption optimization in the capacity grading process of various batteries such as lithium ion batteries, lead acid batteries and nickel-metal hydride batteries are achieved, and the problems that a traditional heat dissipation scheme is poor in adaptability, lagged in response and high in energy consumption are effectively solved.

An information handling system includes a front door having a first frame, a main portion, and a rear portion. The main portion includes a second frame, a component node having multiple components, and a first channel. The rear portion includes a third frame, a cooling coil, a cooling fan, and a second channel. The information handling system is airtight when the first frame is in physical communication with a first end of the second frame and the third frame is in physical communication with a second end of the second frame. An airflow circulates within the information handling system to cool the components in the component node. The airflow circulates from the cooling coil to the cooling fan, through the second channel, through the first channel, through the component node, and back through the cooling coil.

This invention discloses an air-source-water source composite heat pump system and its operating method, solving the problems of low coefficient of performance and reliance on high-energy-consuming reverse-cycle defrosting methods in existing coupled systems, which are mostly simply set up in series or parallel. It has the beneficial effects of improving the coefficient of performance and ensuring the continuity and stability of industrial heating. The specific solution is as follows: An air-source-water source composite heat pump system includes a photovoltaic waste heat utilization unit: including a duct, the duct being placed on the back side of the photovoltaic module; a municipal greywater waste heat utilization unit: including a municipal greywater waste heat exchanger, the municipal greywater waste heat exchanger being connected to a municipal greywater pipeline; a low-temperature air-source-water source composite heat pump unit: including a photovoltaic-side evaporator, a first greywater-side evaporator, and a first-stage heating condenser located at the end of the duct, the municipal greywater waste heat exchanger being connected to the first greywater-side evaporator; and a high-temperature air-source-water source composite heat pump unit.

The invention discloses a hybrid thermal network modeling method and system for a journal sticking type synchronous generator, and belongs to the technical field of electrical excitation synchronous generator thermal network modeling analysis, and the method comprises the steps: dividing the journal sticking type synchronous generator into a solid heat transfer domain and a fluid heat transfer domain, and carrying out the node discretization of each region; establishing thermal resistance connection among the discrete nodes, and constructing a thermal network model comprising conduction thermal resistance, contact thermal resistance and initial convection heat transfer thermal resistance; setting a characteristic fluid heat transfer subdomain physical boundary condition, carrying out local three-dimensional steady-state fluid dynamic simulation, carrying out inversion calculation to extract a convective heat transfer coefficient, and correcting convective heat resistance of a corresponding node in the heat network model; and on the basis of the corrected thermal network model and the physical attributes of the nodes, establishing a global thermal balance differential equation set, and solving the global thermal balance differential equation set by adopting a temperature-loss coupling iteration method to obtain global steady-state temperature field data. The thermal management design precision and efficiency of the generator can be improved.

The utility model relates to the technical field of heat dissipation of a switch, and discloses a liquid cooling and air cooling mixed heat dissipation device for the switch, which comprises an upper heat dissipation box and a lower heat dissipation box, the upper heat dissipation box and the lower heat dissipation box are respectively fixed on the top surface and the bottom surface of the switch, and the right side of the upper heat dissipation box and the right side of the lower heat dissipation box are respectively communicated and fixed with a plurality of water inlet pipes. A water pump is fixedly communicated between each group of water inlet pipes, water outlet pipes are fixedly communicated with the left sides of the upper heat dissipation box and the lower heat dissipation box, and three four-way pipes are arranged in each of the upper heat dissipation box and the lower heat dissipation box; the left side and the right side of the upper heat dissipation box and the left side and the right side of the lower heat dissipation box are each provided with two air openings, and fans are fixed into the air openings. According to the cooling device, cooling water can be recycled, resource waste is reduced, cooling water can be added and discharged in time, normal use of the fan is guaranteed, and cooling efficiency is improved.