105results about How to "Improve thermal management efficiency" patented technology

The invention relates to the technical field of microelectronic packaging, and discloses a packaging method of a multi-layer stacked memory chip, which comprises the following steps: constructing a 3D packaging structure layout of a memory chip to be packaged; constructing a physical field of the 3D packaging structure layout, and integrating the physical field and the field action relationship into the 3D packaging structure layout to obtain a coupled 3D packaging structure layout; calculating a hot spot, a high stress area and a high electric field area of the coupled 3D packaging structure layout, and optimizing the coupled 3D packaging structure layout to obtain a target packaging structure layout; performing multi-layer stacking on the to-be-packaged storage chip to obtain a multi-layer stacked storage chip; and packaging the multi-layer stacked memory chip to obtain a packaged multi-layer stacked memory chip, activating packaging repair of the self-repair material by using a preset material repair algorithm to obtain a packaging repair material, and performing multi-layer stacked packaging of the to-be-packaged memory chip based on the packaging repair material. According to the invention, the packaging stability of the multi-layer stacked storage chip can be improved.

The invention provides a liquid cooling partition intelligent control method for an energy storage system, and relates to the technical field of intelligent control, and the method comprises the steps: obtaining the real-time operation data of the energy storage system, and analyzing the current heat demand of the energy storage system based on the temperature data of an energy storage converter and a battery pack; a real-time temperature control target is determined, then a liquid cooling working mode is selected, a corresponding liquid cooling control instruction is generated, the operation rotating speed of a water pump of the water cooling unit is adjusted according to the instruction, corresponding cooling liquid flow is generated, cooling liquid is distributed to an energy storage converter and a battery pack loop by adjusting and controlling the opening and closing angle of a three-way valve, and an initial liquid cooling path is formed; cooling simulation and optimization are carried out by establishing a real-time twinborn model, the problems that the energy efficiency is low and the system performance is unstable due to the fact that dynamic and independent refrigeration control cannot be provided for different thermal load requirements through liquid cooling and heating management are solved, and the effects of improving the thermal management efficiency and the system energy utilization efficiency and optimizing the system stability are achieved.

The invention provides a solid hydrogen storage thermal management system and method, and relates to the technical field of thermal management, and the system comprises a solid hydrogen storage module, a heating liquid storage module, a heat exchanger and a cooling module. The solid hydrogen storage module is composed of a plurality of solid hydrogen storage units connected in parallel, a first control valve and a second control valve. The heating liquid storage module comprises a liquid storage tank and a heater and is communicated with each solid hydrogen storage unit; and the cooling module comprises a water chilling unit and is used for cooling the medium flowing out of the liquid storage tank during hydrogen filling. And in the hydrogen charging and discharging operation, a control valve of the target solid hydrogen storage unit is opened, so that the target solid hydrogen storage unit, the heating liquid storage module and the heat exchanger form a communication loop. The heater heats the heat exchange medium to a first temperature range required by hydrogen desorption, and the water chilling unit cools the heat exchange medium to a second temperature range during hydrogen charging. The temperature of the solid hydrogen storage system can be effectively controlled in the hydrogen charging and discharging process.

The invention belongs to the technical field of power battery cooling, and particularly relates to a flow control method and system for a liquid cooling system of an electric vehicle-mounted power battery, and the method comprises the steps: carrying out the parameterization of a geometric model of the liquid cooling system; establishing an equipment resistance model based on the equipment flow resistance characteristics; initializing flow distribution, constructing a dynamic flow distribution model, calculating the flow of each node and judging whether the flow meets a target requirement or not, and if not, readjusting the flow; calculating the resistance of each section, determining the total resistance of the pipeline, and checking the water pump lift; the flow uniformity is judged by calculating the pipeline resistance between the nodes, and if the flow is not uniform, the flow is redistributed or the pipeline design is optimized until the flow is uniform. Through flow control, the problems of non-uniform flow distribution and poor temperature consistency of multiple battery packs in the prior art are solved, the optimal working state of the power battery is ensured, overheating and overlarge temperature difference are avoided, and the operation efficiency, stability, durability and safety are improved.

The embodiment of the invention provides a heat management device and an energy storage cabinet. The heat management device is used for the energy storage cabinet and comprises a first loop unit, a second loop unit, a multi-way valve and a phase change heat storage unit. The first loop unit comprises a first heat exchange pipeline, and the first heat exchange pipeline is used for exchanging heat with an energy storage device of the energy storage cabinet; the second loop unit comprises a second heat exchange pipeline; the phase change heat storage unit comprises a first flow channel, a second flow channel and a phase change part, the first flow channel can selectively communicate with the first heat exchange pipeline through a multi-way valve, and the second flow channel directly communicates with the second heat exchange pipeline; the phase change part is in heat conduction contact with the first flow channel and the second flow channel. The heat management device is arranged, and the phase change part is in heat conduction contact with the flow channel, so that efficient heat exchange between the phase change material and the cooling liquid in the flow channel can be realized. When the temperature of the cooling liquid in the flow channel rises, the phase change material absorbs heat and generates phase change, and vice versa, so that the temperature fluctuation in the flow channel is balanced.

The invention relates to the technical field of energy conservation and new energy, and discloses an electric vehicle integrated heat management system which comprises a refrigerant loop and a cooling liquid loop. The refrigerant loop and the cooling liquid loop realize heat interaction through the plate heat exchanger; a compressor, an eight-way valve, an in-cabin heat exchanger, a gas-liquid separator, a first heating assembly, a first electronic expansion valve, a second electronic expansion valve, a third electronic expansion valve, a battery direct cooling plate and a first external heat exchanger are arranged on the refrigerant loop; a radiator, a three-way water valve, an electric driving system, a motor water pump, an expansion water tank, a second external heat exchanger and a second heating assembly are arranged on the cooling liquid loop. The problems that a battery electric vehicle thermal management system is numerous in component, complex in loop and high in failure rate are solved.

The invention relates to the technical field of energy storage management, and discloses a comprehensive energy storage management system which comprises an energy storage box and a heat management assembly, a plurality of battery bins are arranged on the upper portion in the energy storage box, energy storage batteries are inserted into the battery bins in a one-to-one correspondence mode, and annular gaps exist between the energy storage batteries and the battery bins; a charging and discharging circuit board is further arranged in the energy storage box and located on the lower portions of the multiple battery bins, the bottoms of the multiple battery bins are connected with the charging and discharging circuit board through connectors, a charging and discharging interface electrically connected with the charging and discharging circuit board is further formed in the side face of the energy storage box, and charging and discharging of the multiple energy storage batteries are achieved through the charging and discharging interface and the charging and discharging circuit board. The heat management assembly comprises a temperature monitoring unit and a temperature diffusion unit, the temperature monitoring unit comprises a first temperature sensor and a second temperature sensor, and the temperature of the battery and the connector is accurately monitored, and a cooling medium is circularly conveyed to a cooling plate and a spiral cooling pipe, so that the energy storage battery and the connector are effectively cooled.

The invention discloses a TPMS structure-based phase change liquid cooling coupling battery thermal management device, and relates to the technical field of battery thermal management, the TPMS structure-based phase change liquid cooling coupling battery thermal management device comprises a plurality of battery packs, a battery box body, a first liquid cooling pipeline, a second liquid cooling pipeline and a plurality of cooling plates; the battery packs and the cooling plates are sequentially arranged in the battery box body at intervals; the cooling plate comprises a plate core and a shell, the plate core of a three-period minimum curved surface structure is arranged in the shell, and a liquid cooling area and a phase change cooling area which are isolated from each other are defined by the plate core and the shell. The liquid cooling area is communicated with a liquid cooling inlet and a liquid cooling outlet of the shell to form a liquid cooling channel, and is communicated with an external liquid cooling circulating device through a first liquid cooling pipeline and a second liquid cooling pipeline to realize liquid cooling; and a phase-change material is injected into the phase-change cooling area to realize phase-change cooling. According to the invention, the plate core with a small specific surface area and a three-period extremely-small curved surface structure is adopted to manufacture the cooling plate, so that effective coupling of liquid cooling and phase change cooling is realized, and high heat exchange efficiency and good temperature uniformity can be realized.

The invention provides a method and device for vehicle thermal management and a computer readable storage medium. The method comprises the following steps: according to vehicle navigation data and / or a vehicle driving state, judging whether a vehicle driving mode meets the requirement of a thermal management mode or not; when it is judged that the vehicle running mode meets the requirement of the heat management mode, the environment temperature and the upper temperature limit and the lower temperature limit of a heat management component in the heat management mode are obtained, and the remaining running distance and / or the remaining running time from the vehicle to the destination are / is estimated; and performing thermal management on the thermal management part of the vehicle according to the acquired environment temperature, the temperature upper limit and the temperature lower limit of the thermal management part and the estimated residual driving distance and / or the residual driving time.

The invention provides a thermal management assembly, a thermal management system and a battery. The heat management assembly comprises a plurality of heat management parts, one heat management part is a first heat management part, and the other heat management parts are second heat management parts; the area of at least part of the overflowing cross section of the main flow channel of the first heat management part is smaller than that of the overflowing cross section of the main flow channel of the second heat management part. According to the application, the flow of the heat exchange medium in the first heat management part can be reduced, and the flow in the second heat management part can be increased, so that the consistency of the heat management efficiency of the isolated zero battery cell column and the heat management efficiency of the grouped battery cell column can be improved. Therefore, on the basis of ensuring the energy density of the battery and ensuring that each battery cell column is provided with the thermal management part, the uniformity of the thermal management assembly on the temperature management of the battery cells can be improved, so that the consistency of the grouped battery cell columns and the isolated zero battery cell columns in the aspects of charging and discharging, battery capacity attenuation, mechanical stress and the like is improved. Finally, the reliability of the battery can be improved.

The present invention provides a method for manufacturing a satellite navigation three-dimensional chip, and relates to the field of three-dimensional chip manufacturing. The method is based on a method for manufacturing a satellite navigation three-dimensional chip, and includes: S1. First, three-dimensional structure design is performed using professional design software, and the optimization of electrical performance, thermal management and physical size is considered. Silicon via technology is used to achieve vertical integration between chip layers to ensure rapid signal transmission and high-density integration. At the same time, graphene and carbon nanotube composite materials are selected to prepare high thermal conductivity nanomaterials for use as thermal interface materials. By using professional design software for three-dimensional structure design and using silicon via technology to achieve vertical integration between chip layers, this solution can ensure rapid signal transmission and high-density integration, and graphene and carbon nanotube composite materials are selected as thermal interface materials. Combined with a carefully designed heat diffusion layer layout and micro-cooling channels, the thermal management efficiency of the chip is significantly improved.

The invention discloses a solid laser with a heat effect reducing structure, and relates to the technical field of lasers, the solid laser comprises a laser gain medium, a pump light source and a heat management module, the laser gain medium is arranged in a laser resonant cavity formed by at least one reflector, the pump light source is used for exciting the laser gain medium, and the heat management module is used for controlling the heat effect reducing structure. The heat management module comprises a heat conduction substrate, a plurality of micro-channel cooling structures arranged in parallel along the interior of the heat conduction substrate, a heat diffusion layer and a heat interface material. By installing the rectangular micro-channel cooling structure, local heat generated by the laser gain medium is efficiently absorbed and conducted, uniform cooling is achieved, local overheating, hot plate and thermal lens effects are effectively prevented, optical distortion and device deformation caused by thermal gradient on the surface are avoided, the overall thermal management efficiency is improved, and the service life of the laser is prolonged. The laser is ensured to work stably under a high-power operation condition, the service life of the device is prolonged, and the output beam quality is improved.

The present invention provides a battery system with efficient thermal management capability, comprising: a battery pack comprising a plurality of cells connected in series; the temperature adjusting unit comprises a plurality of semiconductor chilling plates which are in one-to-one correspondence with the battery cells, each semiconductor chilling plate is provided with a first heat exchange end and a second heat exchange end, and the first heat exchange ends are in direct / indirect contact with the battery cells so as to adjust the temperature of the battery cells; the temperature acquisition unit is used for monitoring temperature data of each battery cell in real time and transmitting the monitored temperature data to the control unit; and the control unit is used for receiving the temperature data transmitted by the temperature acquisition unit and controlling the refrigeration / heating mode of each semiconductor refrigeration sheet according to a preset temperature equalization strategy so as to maintain the temperatures of all the battery cells within a set equalization range. The method has the advantages that the temperature of the battery cell can be maintained within a set equalization range, battery performance degradation caused by temperature fluctuation is reduced, and the service life of the battery cell and the whole battery system is prolonged.

The invention provides a thermal management method and system of an energy storage device, the energy storage device comprises a plurality of battery modules and at least one exhaust fan, each battery module comprises a plurality of single cells, and the thermal management method is characterized by comprising the following steps: judging whether the plurality of battery modules are in a working state or not through a control center; if the control center judges that the plurality of battery modules are in the working state, the control center continues to obtain the working states of the plurality of battery modules; and if the control center judges that the plurality of battery modules are not in the working state, the control center starts thermal management on the plurality of battery modules. According to the thermal management method and system of the energy storage device, the power consumption of the whole machine can be reduced, and the service life of the single battery cells in the battery module is prolonged.

The utility model discloses an energy storage system, which comprises an energy storage box body, the energy storage box body is provided with a battery cabin, a battery cabin door, a comprehensive cabin and a comprehensive cabin door, the battery cabin is used for accommodating a battery module, and the comprehensive cabin is used for accommodating an energy storage converter, a confluence cabinet and an electrical cabinet; the battery compartment liquid cooling unit is arranged on the battery compartment door, and the battery compartment liquid cooling unit is used for performing thermal management on the battery compartment; the comprehensive cabin heat management unit is arranged on the comprehensive cabin door, and the comprehensive cabin heat management unit is used for carrying out heat management on the comprehensive cabin; wherein the battery cabin liquid cooling unit and the comprehensive cabin heat management unit are of a split structure and are mutually independent. According to the energy storage system, heat dissipation of the battery cabin and heat dissipation of the comprehensive cabin can be independently managed, that is, the temperature of the battery side and the temperature of the energy storage converter side can be independently controlled, the short-plate effect can be eliminated, and the heat management efficiency of the energy storage system is improved; the power density of the energy storage system can be maintained or further improved.

The invention provides a phase change composite material. The phase change composite material comprises an inner core; the inner core is formed by hollow polymer fibers filled with a phase change material; tensioning 1-3% of graphitized carbonaceous yarn, and spirally winding the graphitized carbonaceous yarn on the surface of the inner core; the hollow polymer fibers comprise at least one of thermoplastic polyurethane fibers, polypropylene fibers, polyvinyl alcohol fibers, polyvinylidene fluoride fibers or polycaprolactone fibers. The invention also provides a preparation method of the phase change composite material, which comprises the following steps: graphitizing the carbonaceous yarn, and winding the graphitized carbonaceous yarn around the inner core to obtain the phase change composite material. The invention further provides application of the phase-change composite material, and the phase-change composite material is particularly applied to heat management, temperature regulation, heat dissipation of electronic equipment, energy storage and conversion equipment or temperature control and maintenance of medical equipment.

The utility model relates to the technical field of heavy truck thermal management systems, and particularly discloses a new energy heavy truck integrated thermal management system which comprises a passenger compartment loop, a battery heating loop and an electric drive cooling loop, and energy distribution between the passenger compartment loop and the battery loop is adjusted through an electronic expansion valve. A four-way valve is arranged between the battery heating loop and the electric drive cooling loop; the passenger compartment loop comprises an HVAC system, the output end of the HVAC system is connected with a liquid-gas separator, the output end of the liquid-gas separator is connected with an electric compressor, and the output end of the electric compressor is connected with a condenser; the battery heating loop comprises a heat exchanger, the output end of the heat exchanger is connected with a four-way valve, the output end of the four-way valve is connected with a first PTC, the output end of the first PTC is connected with a battery, the output end of the battery is connected with a battery water pump, and the output end of the battery water pump is connected to the input end of the heat exchanger. The occupied space of the new energy heavy truck heat management system is reduced, overall truck layout is facilitated, and meanwhile energy consumption and manufacturing cost are reduced.

The utility model relates to the technical field of energy storage cabinets, in particular to a heat dissipation device and an energy storage cabinet. The air guiding component is provided with an air guiding channel, an air guiding air inlet and an air guiding air outlet, wherein the air guiding air inlet and the air guiding air outlet communicate with the air guiding channel. The heat dissipation component is provided with a cooling air duct, a cooling air inlet and a cooling air outlet, wherein the cooling air inlet and the cooling air outlet communicate with the cooling air duct, and the cooling air inlet communicates with the air guide air outlet. According to the heat dissipation device provided by the invention, an inherent cooling air channel in an original energy storage cabinet is independent, so that the number of the heat dissipation components can be increased or decreased according to the actual number of battery columns, that is, the heat dissipation channels can be adaptively adjusted according to the actual number of battery columns, and air is reasonably distributed to each heat dissipation component through the air guide component; therefore, each battery column can be well cooled, the cooling effect is greatly improved, the heat management efficiency is further improved, and the device is simple in structure and low in cost.

The invention belongs to the technical field of three-dimensional ceramic network reinforced composite phase-change materials, and particularly relates to a high-thermal-conductivity and insulating three-dimensional ceramic network reinforced composite phase-change material and a preparation method thereof.The high-thermal-conductivity and insulating three-dimensional ceramic network reinforced composite phase-change material comprises an organic solid-liquid phase-change material serving as a working component, an inorganic solid-liquid phase-change material serving as a working component and an inorganic solid-liquid phase-change material serving as a working component, the polyhydric alcohols are selected from paraffin, polyethylene glycol, stearic acid and polyhydric alcohols; an encapsulating component: a steady-state polymer material selected from epoxy resin and polyurethane; the reinforcing filler is a high-thermal-conductivity insulating inorganic filler and is selected from boron nitride, aluminum oxide and silicon nitride.The preparation method has the advantages that compared with a traditional porous ceramic preparation process, controllable preparation of the high-thermal-conductivity insulating porous ceramic with a complex structure is achieved by adopting a 3D printing technology, and designability and repeatability of the structure of the high-thermal-conductivity insulating porous ceramic can be achieved easily.

The utility model relates to the technical field of energy storage, and discloses a liquid cooling and energy storage integrated cabinet. Comprising a cabinet body, and the interior of the cabinet body is divided into a battery chamber and an electrical chamber; a battery rack is fixed in the battery chamber, a plurality of liquid cooling battery packs are fixed on the battery rack, and liquid cooling pipelines communicated with liquid cooling plates of the liquid cooling battery packs are fixed on the battery rack; an electrical equipment mounting rack is fixed in the electrical room; a cabinet body distribution box, a bidirectional converter, a liquid cooling unit, a high-voltage box, a fire-fighting controller, a battery management master controller, an energy management unit, a UPS (Uninterrupted Power Supply) and a travel switch are mounted on the electrical equipment mounting rack; the liquid cooling unit is communicated with the liquid cooling pipeline, and the high-voltage box is communicated with the positive electrode and the negative electrode of the battery pack. The liquid cooling and energy storage integrated cabinet is compact in structure; modular design is adopted; the capacity is large; the capacity topology is simple and can be used in a single machine or a combined cabinet; disassembly, assembly and maintenance are convenient, and operation and maintenance cost is low.

The invention relates to a thermal management liquid storage structure of an energy storage system, a thermal management system and a control method, the liquid storage structure is arranged above a battery pack, and the control method comprises the following steps: receiving charge and discharge information, and obtaining pre-cooling time and cooling time matched with charge and discharge duration according to the charge and discharge information; according to the precooling time, a three-way valve is controlled to communicate with a first pipeline and a second pipeline, a third pipeline is turned off, and the liquid cooling unit is controlled to operate, so that cooling liquid in a liquid storage structure is precooled; controlling a three-way valve to communicate with a first pipeline and a third pipeline according to the cooling time, turning off a second pipeline, and controlling the liquid cooling unit to continuously operate so as to efficiently cool the battery pack; and closing the liquid cooling unit and the three-way valve when the cooling time is finished. The problems that the upper temperature and the lower temperature in the energy storage battery cabinet are not uniform, and the short-time heating value is large under the fast charging and fast discharging working conditions can be solved.

The utility model discloses a fully-immersed cooling battery system. The fully-immersed cooling battery system comprises a lower box body, an upper cover, a flow equalizing plate and a battery module, the battery module is located in the lower box body, the flow equalizing plate is arranged between the battery module and the upper cover, the upper cover is provided with a liquid inlet assembly, the liquid outlet end of the liquid inlet assembly is connected with a spraying device, the lower box body is provided with a liquid outlet, and the flow equalizing plate is provided with a flow channel used for conducting flow guiding, flow dividing or flow equalizing on cooling liquid sprayed out by the spraying device. Therefore, the cooling liquid entering in a radial manner is subjected to flow equalizing and guiding, so that the cooling liquid uniformly flows to the top of the battery module, then flows through the gaps of the battery module and flows out of the liquid outlet. According to the utility model, the spraying device and the flow equalizing plate are matched with each other, an upper-inlet lower-outlet flow direction is adopted, a circulating flow channel with high uniformity and a short circulating path is provided, a cooling liquid flowing path is short, the distribution is uniform, all-directional cooling is realized, the temperature of a battery system under a fast charging condition can be effectively controlled, and the system achieves the effects of efficient heat exchange and excellent temperature equalization.

The invention discloses a hydrogen storage tank filled with a hydrogen adsorption material, and belongs to the technical field of hydrogen storage tanks. The hydrogen storage tank filled with the hydrogen adsorption material comprises a tank body, a tank cover is installed at one end of the tank body, a heat exchange pipe is arranged in the tank body, the two ends of the heat exchange pipe penetrate through the other end of the tank body, the heat exchange pipe is in a U shape, a plurality of cooling fins are installed on the outer side of the heat exchange pipe, and the hydrogen storage material is arranged among the cooling fins. Supporting bases are installed on the two sides of the bottom end of the tank body, a bottom box is installed at the bottom ends of the supporting bases, a limiting mechanism is arranged in the bottom box, universal wheels are installed on the two sides of the bottom end of the bottom box, one end face of the tank cover communicates with a gas inlet and outlet pipe, a valve is installed at one end of the gas inlet and outlet pipe, and a gas inlet and outlet connecting pipe is installed at one end of the valve. The thermal management efficiency of the hydrogen storage tank can be effectively improved, the problem that an existing hydrogen storage tank is poor in thermal management effect is solved, and high practical value is achieved.

The invention provides an underground engineering thermal infrared characteristic suppression method based on thermal insulation and temperature control. The underground engineering thermal infrared characteristic inhibition method comprises the following steps that S1, a flue gas emission model used for an underground engineering target area is constructed, the flue gas emission model comprises a flue, and a thermal insulation layer and a rock-soil layer are sequentially arranged outside the flue; s2, acquiring parameters of a heat insulation layer through conjugate heat transfer analogue simulation, and enabling the temperature difference between an outlet of the flue and a surrounding rock-soil layer to be not greater than 2K; and S3, a temperature control system is arranged on the outer side of the heat insulation layer, the temperature of the flue is adjusted through the temperature control system, and the temperature difference between an outlet of the flue and the surrounding rock-soil layer is controlled to be not larger than 2K. The underground engineering thermal infrared characteristic inhibition method can well meet specific thermal insulation and temperature control requirements under different environment conditions, the underground engineering thermal infrared characteristic inhibition capability is remarkably improved, intelligent temperature control and dynamic adjustment are achieved, and good economic benefits and social benefits are achieved.

The embodiment of the present application discloses a battery module and a vehicle, which relates to the field of vehicle engineering. A heat dissipation component is arranged at the pole, and the heat dissipation component and the pole exchange heat, directly cooling or heating the pole of the battery, improving the thermal management efficiency, and being applicable to the universal and modular design of the battery module, and applicable to battery packs of different series-parallel structures, and the arrangement is simple, flexible and reliable. The battery module includes a battery and a heat dissipation component, wherein the battery includes a pole; the heat dissipation component is arranged on the pole, and is used to dissipate heat from the battery. The battery module is used to provide electrical energy.

The utility model relates to a car technical field especially, it is a kind of central hand box refrigeration structure, including central hand box, condenser pipe, semiconductor refrigeration module, shroud and heat dissipation pipeline, wherein, central hand box inside is equipped with refrigeration space;Condenser pipe is embedded in the lateral wall of refrigeration space, and its both ends are communicated with the refrigerant circulation pipeline of car air conditioning system by pipeline;Semiconductor refrigeration module cold end is embedded in the lateral wall of refrigeration space, and hot end is placed in the inside of shroud;Shroud is fixed in the inside of central hand box;One end of heat dissipation pipeline is communicated inside shroud, and the other end is communicated to engine cabin, and exhaust fan is embedded in the inside of heat dissipation pipeline;The utility model proposes a kind of central hand box refrigeration structure, it is additionally equipped with semiconductor refrigeration module as auxiliary cold source, can carry out cold supplement to refrigeration space under the condition that vehicle is temporarily extinguished, effectively inhibits the temperature rise in refrigeration space, and reduces temperature fluctuation, guarantees the continuity and stability of refrigeration effect.

The invention belongs to the technical field of vehicle heat management, and particularly relates to a vehicle heat management system, a vehicle-mounted air conditioner and an electric automobile, the vehicle heat management system comprises a compressor, a heated object, a passenger compartment evaporator, a plurality of electronic expansion valves and a plurality of heat exchangers, and at least one heat exchanger is located in a loop on the side of the heated object; a high-temperature refrigerant flowing out of the compressor enters the heat exchanger in the heated object side loop through an electronic expansion valve for heat exchange to obtain a low-temperature refrigerant, the low-temperature refrigerant enters the passenger compartment evaporator through another electronic expansion valve, and refrigerating of a passenger compartment is achieved. The problems of user comfort and refrigerator volume utilization rate are solved.

This utility model discloses a thermal management system suitable for containerized energy storage systems, comprising an air conditioning refrigerant circuit and a battery thermal management circuit, both of which include plate heat exchangers. Through this structure, the integration of the air conditioning refrigerant circuit and the battery thermal management circuit reduces system complexity and cost, while also reducing space requirements and maintenance costs. The battery thermal management system utilizes the plate heat exchanger to form a heat exchange with the air conditioning refrigerant circuit, effectively dissipating the heat absorbed from the energy storage battery module through the air conditioning system. The air conditioning refrigerant circuit dynamically adjusts the refrigerant distribution to regulate the heat exchange distribution between the air conditioning refrigerant circuit and the battery thermal management circuit. The battery thermal management circuit includes a phase change thermal storage unit connected in parallel with the plate heat exchanger, releasing stored heat / cold energy during charging and discharging intervals, reducing the frequent start-stop of the compressor and PTC heater.

The application provides a kind of high efficiency DC-DC power module of power saving type for tractor, it is related to power module technical field, including substrate, DC-DC power module, top plate, air-cooled heat sink and at least one heat conducting piece.The application, by setting heat conducting piece between the heat generating element of DC-DC power module and top plate, the equivalent thermal conductivity of the heat conducting piece from first end (heat source end) to second end (top plate end) shows decreasing trend;It is realized that the equivalent thermal conductivity is high near the heat generating element, the heat can be quickly exported from heat source, avoid heat accumulation to cause element junction temperature too high;With the heat transfer along the heat conducting piece to top plate direction, the equivalent thermal conductivity gradually reduces, and the heat flow transmission capacity weakens, to make heat more dissipate through the side wall of heat conducting piece to the surrounding environment (especially the airflow driven by air-cooled heat sink).

The utility model discloses a double-sided liquid-cooling external water-cooling pipeline battery pack structure, which comprises a box body and a plurality of battery modules arranged on the box body, a side cold plate is arranged on one side surface of each battery module, a side cold plate adapter is arranged at the rear tail end of each battery module, the side cold plate comprises a side cold plate main body, and the side cold plate main body is connected with the side cold plate adapter. Limiting blocks are tightly attached to the side faces, facing the side cold plate adapters, of the rear tail ends of the side cold plate bodies, two spaced box adapters are welded to the rear wall of the box, and through holes penetrating through the rear wall and allowing the side cold plate adapters to be installed therein are formed in the positions, located on the two sides of the box adapters, of the rear wall of the box. A waterway plate is installed on the outer side face of the rear wall of the box body, a side cold plate water cooling connector is welded to the position, opposite to the side cold plate adapter, of the waterway plate, and a box body water cooling connector is welded to the position, opposite to the box body adapter, of the waterway plate. The problem of short circuit of the battery pack caused by leakage of cooling liquid can be avoided.