100results about How to "Increase working temperature" patented technology

The invention belongs to the technical field of battery thermal management, and discloses a battery pack and a phase change material coupling liquid cooling composite thermal management system.The battery pack comprises a plurality of battery structures, each battery structure comprises a lithium battery, a fin structure, a phase change material filling area and a liquid cooling plate, and the fin structure is arranged on the periphery of the lithium battery; the liquid cooling plate is arranged on the periphery of the fin structure, a phase-change material filling area is formed between the liquid cooling plate and the fin structure, and the phase-change material filling area is filled with a phase-change material for absorbing redundant heat and generating phase change, so that the temperature fluctuation of the battery is reduced. The lithium bromide heat pump and the direct-current power supply are combined, and accurate adjustment of the temperature of the battery pack is achieved through efficient heat exchange and intelligent control. The system can be rapidly switched between a cooling mode and a heating mode, and it is ensured that the battery is always kept within the optimal temperature range in different working environments.

The utility model provides a hydraulic safety valve, which relates to the technical field of hydraulic safety valves and comprises a hydraulic safety valve body, an oil storage chamber is arranged at the top of the hydraulic safety valve body, and a heating structure is fixedly connected to the outer side of the oil storage chamber and can heat hydraulic oil in the oil storage chamber. Through the design of the heating structure and the heat dissipation structure, the temperature sensor can detect the temperature of hydraulic oil in real time, when the temperature of the hydraulic oil in the oil storage chamber is too low, the heating structure can be started and heat the hydraulic oil, so that the hydraulic oil can be located at the optimal working temperature, and when the temperature of the hydraulic oil is too high, the heat dissipation mechanism can be started; and a heating medium and hydraulic oil in the heating structure are subjected to synchronous heat dissipation, so that the heating structure can recover to the optimal working temperature.

The invention provides a new energy automobile battery temperature control system which comprises a battery pack, a battery pack, a liquid cooling pipeline, a backflow pipeline, an expansion water tank, a first circulating pump, a heat exchange body, a second circulating pump, a heat pump system, a resistance heater and a PTC heater. The battery pack is arranged in an inner cavity of the battery pack, the liquid cooling pipeline and the backflow pipeline are both located in the inner cavity of the battery pack and surround the battery pack, and a temperature sensor is arranged in the inner cavity of the battery pack; the liquid cooling pipeline and the backflow pipeline are provided with a plurality of branches, and each branch is provided with a temperature sensor. A three-way valve is arranged at one end of the liquid cooling pipeline and one end of the backflow pipeline; the liquid cooling pipeline is connected with the first circulating pump and penetrates through the heat exchange body to form a circulating loop with the expansion water tank, the heat exchange body is connected with the second circulating pump, the other end of the backflow pipeline is connected with the heat pump system, the other end of the heat pump system is connected with the PTC heater, and one end of the first circulating pump is connected with the resistance heater.

The invention provides a methanol preheating and catalytic cracking system for a methanol engine, a ship and a control method, and belongs to the technical field of ship methanol engines. The problems that an existing methanol engine is difficult in cold start and methanol gasification are solved. The system comprises a methanol engine, a methanol storage tank, a water storage tank, a heat exchanger, an inlet temperature sensor and an outlet temperature sensor, one passage of a third three-way valve is connected with the waste gas output end of the methanol engine, the other passage of the third three-way valve is connected with another cooling water pipeline, and the methanol output end of the heat exchanger is connected with the methanol input end of the methanol engine. The methanol input end is connected with the methanol storage tank, a methanol pump is arranged on a methanol conveying pipeline between the methanol storage tank and the heat exchanger, two passages of the first three-way valve are arranged between the methanol conveying pipelines, and the inlet temperature sensor and the outlet temperature sensor are respectively arranged at a methanol inlet and a methanol outlet of the heat exchanger. The method is mainly used for starting the methanol engine.

The invention is used for the technical field of 3D printers, and discloses a model 3D printer for cultural and creative product design, the model 3D printer comprises a base, a mounting frame is fixedly arranged at the upper end of the base, a transverse moving linear module and a lifting linear module are mounted at the upper end of the mounting frame, and a printing nozzle is fixedly mounted on the outer surface of the lifting linear module; a longitudinal moving linear module is installed on the outer surface of the base, a printing base plate is installed at the upper end of the longitudinal moving linear module, the printing base plate is slidably connected with the base, a demolding structure is arranged on the surface of the printing base plate, and deformation damage to a model in the demolding process is reduced in a mode of staged separation from the model; and the integrity of the model is ensured. According to the model 3D printer for cultural and creative product design, the mode that after product printing is completed, the supporting plate and the printing base plate are alternately separated from a product is adopted, so that the separating force borne by the product at a time can be reduced, and the product is not prone to deformation in the separating process.

The present invention belongs to the technical field of polyethylene preparation, and specifically relates to a cross-linked polyethylene insulated cable and a preparation method thereof. The cross-linked polyethylene insulated cable is composed of material A and material B, and the weight ratio of material A to material B is 95:5; material A is composed of the following raw materials: modified linear low-density polyethylene, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, di-tert-butylperoxyisopropylbenzene, vinyl tri(2-methoxyethoxy)silane, 1,2-polybutadiene; material B is composed of the following raw materials: linear low-density polyethylene, dibutyltin dilaurate, and antioxidant. In the cross-linked polyethylene insulated cable of the present invention, material A interacts with material B, so that the finally prepared cross-linked polyethylene insulated cable has excellent mechanical properties, chemical stability, and heat aging resistance.

The utility model provides a cutter cooling device and a cigarette cutting system. The cutter cooling device comprises an air source configured to provide compressed air; the refrigerating assembly comprises a vortex tube and a hot end adjusting mechanism, the vortex tube comprises an inlet nozzle, a cold port and a hot port, and the vortex tube receives compressed air from an air source through the inlet nozzle, outputs low-temperature cooling airflow through the cold port and outputs high-temperature hot airflow through the hot port; the hot end adjusting mechanism changes the flow of the hot airflow output by the hot port so as to change the temperature and flow of the cooling airflow output by the cold port. The cooling die head is communicated with the cold port to receive the cooling air flow, comprises a nozzle arranged opposite to the surface of the cutter, and is configured to spray the cooling air flow to the surface of the cutter; the temperature measuring element detects the working temperature of the surface of the cutter; and the temperature controller is in signal connection with the temperature measuring element and the hot end adjusting mechanism and controls the hot end adjusting mechanism to change the flow of the hot air flow output by the hot port according to the working temperature.

The methanol heater comprises a storage box, a conveying pipe and a heating cable, the front side of the storage box is communicated with a liquid conveying pipe, the left side of the liquid conveying pipe is communicated with a spiral spray head, and the spiral spray head and the liquid conveying pipe are matched with each other to form a methanol liquid atomization structure; the upper side and the lower side of the heating cable are each provided with an adjusting mechanism used for adjusting the screw pitch of the heating cable, and the adjusting mechanisms and the conveying pipe are matched with each other to form a structure for heating the conveying pipe. The purpose of more uniform thread adjustment of the heating cable is achieved, the function of preheating methanol is added, operation of workers is facilitated, the device runs more stably, the purpose of more uniform atomization and heating of methanol liquid is achieved, and the heating efficiency of the methanol liquid is improved.

The invention discloses a photovoltaic panel surface dust deposition resistant coating and a preparation method thereof, and belongs to the technical field of new materials. The dust deposition resistant coating for the surface of the photovoltaic panel is prepared from the following raw materials in percentage by mass: 1 to 8 percent of FEP, 3.5 to 7.5 percent of nano indium tin oxide, 0.08 to 0.8 percent of a surfactant, 0.02 to 0.5 percent of FC-4 and the balance of a solvent. When the anti-dust deposition coating is applied (sprayed) to the surface of a photovoltaic panel, an FEP-nano indium tin oxide composite coating can be formed, and the coating can show lasting anti-pollution ability and is easy to clean. When the photovoltaic cell coated with the special coating is used in a dusty environment, compared with a photovoltaic cell without a coating or only with a traditional antireflection coating, the photovoltaic cell coated with the special coating has unique advantages.

The invention belongs to the technical field of electrolytes, and particularly relates to an electrolyte suitable for low temperature, a preparation method and a lithium battery, the electrolyte comprises a solvent, a lithium source, a film-forming additive and surface modified magnetic particles; according to the invention, the magnetic particles are added in the electrolyte, then the permanent magnet on the turntable rotates to form a variable magnetic field, due to the change of the magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field, and due to the continuous change of the external magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field. The magnetic particles are uniformly distributed in the battery pack, so that the electrolyte can be continuously and uniformly heated, and even if the temperature of the external environment is relatively low, the magnetic domains in the magnetic particles continuously move, the magnetic hysteresis loss phenomenon occurs in the movement process, and the temperature of the magnetic particles is further increased; and therefore, the low-temperature applicability of the electrolyte is improved.

The utility model discloses a nozzle structure for a circular heater, which relates to the field of nozzles and comprises a nozzle body, the outer wall of the nozzle body is provided with a double-end circular heater and a thermocouple, and the left side and the right side of the outer wall of the nozzle body are symmetrically provided with shells. Mounting blocks are symmetrically and fixedly connected to the front faces and the back faces of the tops and the bottoms of the two shells, connecting rods are symmetrically and movably connected to the front faces and the back faces of the tops and the bottoms of the opposite sides of the two shells, and springs are wound around the outer walls of the connecting rods. According to the nozzle structure for the circular heater, the double-end circular heater and the nozzle body of the thermocouple are installed on the outer wall of the nozzle body, the heat utilization rate is high, the heat transfer speed is more direct and faster, the space of a mold can be saved, and when the mold is manufactured, if the space of the mold is limited, the mold can be conveniently replaced. And the nozzle body is arranged, so that a common nozzle structure can be replaced.

The invention provides a method, device and equipment for measuring the maximum power and the maximum current of an air conditioner, and is applied to the field of air conditioner control. The method comprises the steps that corresponding control instructions are sent to a to-be-measured air conditioner and a working condition machine, and measurement data of the to-be-measured air conditioner are obtained; the measurement data comprises operation power and operation current of the to-be-measured air conditioner under different working condition temperatures and different input voltages; the maximum operation power and the maximum operation current as well as the working condition temperature and the input voltage corresponding to the maximum operation power and the maximum operation current are screened out from the measurement data. According to the method and device for measuring the maximum power and the maximum current of the air conditioner and the measuring equipment, the input voltage and the working condition temperature are automatically adjusted through the measuring equipment, system stability is judged, data parameters are recorded, and the measuring efficiency and the measuring accuracy are greatly improved.

The application relates to the technical field of power supply circuits, and particularly discloses a self-adaptive constant-current control method and system for a DC-DC direct-current conversion power supply, wherein the output voltage is acquired in real time and compared with a plurality of preset voltage thresholds, the interval where the output voltage is located is identified, the input current constant-current given value is reduced according to a first step value in response to the output voltage rising in the voltage limiting zone, the input current constant-current given value is reduced according to a second step value in response to the output voltage rising in the current sharing zone, and the first step value is greater than the second step value, so that the voltage overshoot caused by load shedding is quickly inhibited, the stable control of the output voltage is brought, the dynamic response capability of the system is improved, and the risk of damage of power devices due to overvoltage is reduced.

The utility model relates to the technical field of low-voltage electrics, and discloses an intelligent molded case circuit breaker which comprises a circuit breaker body, a connecting block is fixedly connected to one side of the circuit breaker body, a wire is fixedly connected to one side, away from the circuit breaker body, of the connecting block, and an alarm is fixedly connected to one end, away from the connecting block, of the wire. One side of the circuit breaker body is fixedly connected with an intelligent module, one side of the circuit breaker body is provided with a plurality of heat dissipation grooves, one side of the circuit breaker body is fixedly connected with a supporting plate, a support is fixedly connected in the supporting plate, and one side of the support is fixedly connected with a fan. According to the intelligent molded case circuit breaker, through the arrangement of the heat dissipation groove and the fan, the intelligent module is actively cooled, so that the intelligent module is kept at a good working temperature, the intelligent module is more accurately judged, and an operator is accurately reminded through the alarm, so that the operator can accurately judge.

The utility model provides a kind of valve assembly and servo valve using runner heat dissipation, belong to servo valve technical field, including valve body and motor stator installed on valve body;The motor installation well is provided on the valve body, and motor stator is installed in the motor installation well;The valve body is internally provided with multiple fluid passages;Valve body inside is further provided with heat dissipation runner, and heat dissipation runner is at least one part of fluid passage in multiple fluid passages;Heat dissipation runner is set in the area of valve body inside close to motor installation well;Using such a kind of valve assembly and servo valve using runner heat dissipation, heat is generated in the operation process of motor, and heat is transferred to the well wall of motor installation well, and hydraulic oil passes through heat dissipation runner and plays the role of temperature reduction and heat dissipation in the area near motor installation well. It can significantly improve motor operating temperature, improve the reliability and life of servo valve, improve servo valve performance stability, and compact structure, high integration.

The invention discloses an efficient heat dissipation brushless motor, and relates to the technical field of brushless motors. The motor comprises a motor body, a rotor assembly is installed in the motor body, a stator assembly is installed in the motor body, a heat dissipation shell is fixedly connected to the outer wall of the motor body, the rotor assembly comprises a rotating shaft rotationally connected to the interior of the motor body, and a permanent magnet is fixedly connected to the rotating shaft. The motor is provided with the stator assembly, the rotor assembly, the heat dissipation shell, the heat-conducting fins, the cooling liquid pipeline and the temperature sensor, heat generated during operation of the motor body can be rapidly conducted into the heat dissipation shell through the heat-conducting fins, heat in the heat dissipation shell can be directly taken away through cooling liquid in the cooling liquid pipeline, and the heat dissipation efficiency is improved. And the temperature sensor can automatically control the operation of the circulating part according to the temperature change, so that the flow of the cooling liquid in the cooling liquid pipeline is adjusted, and the motor can be ensured to be always in the optimal working temperature range.

The present application belongs to the technical field of energy storage battery thermal management, and particularly relates to an energy storage battery thermal management system based on voltage and Soc average balance control. The energy storage battery thermal management system based on voltage and Soc average balance control comprises a thermal management control unit based on voltage change of the energy storage battery. The energy storage battery thermal management system based on voltage and Soc average balance control can be used in large-scale energy storage structure and new energy power system to realize heat dissipation optimization management of high-density energy storage module. By optimizing the operation mode of the energy storage battery and the module, the temperature state in the energy storage system is optimized, the temperature difference is reduced, the problems such as overheating and overcooling of the system are avoided, and each energy storage battery in the energy storage module is kept at the best working temperature as much as possible.

The invention provides a cobalt-doped nickel-zinc ferrite material and a preparation method and application thereof, the chemical general formula of the cobalt-doped nickel-zinc ferrite material is Ni < 0.5-x > Zn < 0.5-y > Co < x + y > Fe2O4, 0 < = x < = 0.4, 0 < = y < = 0.4, and 0 < x + y < = 0.4. According to the cobalt-doped nickel-zinc ferrite material disclosed by the invention, by doping cobalt, the material can better absorb incident electromagnetic waves, and the position of an absorption peak is changed, so that the wave-absorbing capacity of the nickel-zinc ferrite material in a high-frequency region is improved, and the wave-absorbing material is thin in thickness, wide in frequency band and high in absorption capacity.

The invention relates to an intelligent multi-power system which comprises an engine, a generator set, a fuel tank set and a heater set. Oil inlets and oil outlets of the engine and the generator set communicate with the fuel tank set. The heater set comprises a first heater and a second heater, and the first heater communicates with a cooling water cylinder body of the engine and is used for heating cooling water of the engine; the second heater is communicated with a cooling water cylinder body of the generator set and used for heating cooling water of the generator set, and the first heater and the second heater are both communicated with the fuel tank set. Cooling water of the engine and the generator set is heated, the working temperature of the engine and the generator set is increased, starting and working of a power system in the low-temperature environment are achieved, and normal transportation work of a vehicle in the low-temperature environment is guaranteed; in addition, the heater takes fuel oil from the vehicle for heating work, and redundant energy does not need to be provided; the intelligent starting can be realized according to the manually set temperature; the system is simple in overall structure and low in production cost.

The invention provides an SNCR device and method, and belongs to the technical field of waste gas treatment.The SNCR device comprises an ammonia gas detector, a nitrogen oxide concentration analyzer and an ammonia water vaporizer, the ammonia water vaporizer comprises a straight pipe section, a top inlet is formed in the top of the straight pipe section, the top inlet is connected with an ammonia water liquid inlet device, and a middle inlet is formed in the middle of the straight pipe section; the middle inlet is connected with a steam inlet device, the bottom of the straight pipe section is provided with a necking section, the bottom of the necking section is provided with a throat part, the bottom of the throat part is provided with a flaring section, the bottom of the flaring section is provided with a bottom outlet, and the bottom outlet is connected with a steam outlet device; according to the invention, the concentration of nitrogen oxide and the concentration of ammonia escape can be adjusted in real time, steam and ammonia water are fully atomized and gasified, and then are rotationally sprayed into flue gas, so that the denitration efficiency is greatly improved, the denitration ammonia consumption and the ammonia escape are reduced, and the denitration reaction temperature interval can be reduced to 750-1100 DEG C.

The invention discloses a copper coordination cationic cellulose nanofibril solid electrolyte as well as a preparation method and application thereof. The preparation method of the solid electrolyte comprises the following steps: (1) dissolving cellulose nanofibrils (CNF) into a NaOH / urea aqueous solution, and then adding glycidyl trimethyl ammonium chloride for etherification reaction to obtain cationic cellulose nanofibrils; (2) immersing the cationic cellulose nanofibrils into a NaOH solution containing saturated Cu < 2 + > to coordinate the cationic cellulose nanofibrils to obtain a copper coordination cationic cellulose nanofibril suspension; and (3) replacing a dispersion medium of the copper-coordinated cationic cellulose nanofibril suspension with anhydrous acetonitrile, then adding a lithium salt, uniformly mixing, casting into a mold, and drying to obtain the copper-coordinated cationic cellulose nanofibril solid electrolyte. The battery assembled by using the solid electrolyte prepared by the invention is high in ionic conductivity and excellent in mechanical property and electrochemical property.

The application relates to an inductor and an electronic device. The inductor comprises a magnetic column, a skeleton and a coil. The skeleton is arranged on both sides of the magnetic column along the axial direction of the magnetic column, and the coil is arranged outside the magnetic column. The skeleton has a first mounting hole, and a part of the magnetic column is sleeved in the first mounting hole. In a plane perpendicular to the axial direction of the magnetic column, the minimum distance L between the wall part surrounding the first mounting hole and the magnetic column satisfies L1 >= 2 mm. The buffer space between the skeleton and the magnetic column is increased, the risk of cracking of the part of the magnetic column located in the first mounting hole is reduced, the risk of performance deterioration, total energy consumption increase, abnormal temperature rise, electromagnetic interference increase, noise increase and other problems of the inductor is reduced, the temperature of the inductor during work is reduced, and the performance of the inductor is improved.

The invention discloses a preparation method of a copper-doped cerium oxide gas sensitive material, a gas sensor and application, the preparation method of the gas sensitive material comprises the following steps: adding cerium salt and copper salt into a mixed solution of ethanol and DMF or ethanol and deionized water, and stirring to form a transparent solution; adding PVP (Polyvinyl Pyrrolidone) into the solution, and stirring to form viscous liquid; performing electrostatic spinning on the viscous liquid to obtain nanofibers; and calcining the nano fiber to obtain the Cu doped CeO2 nano tube. According to the method, the in-situ Cu-doped CeO2 nanotube is prepared through electrostatic spinning-calcination, due to the oxygen storage performance and the Cu doping effect of CeO2, in the process of dynamically detecting the target gas H2S, the working temperature of the synthesized sensitive material is reduced, the good response-recovery characteristic can be kept in various oxygen content environments, and the sensitivity is high. And a new path is opened up for developing a novel metal oxide semiconductor gas sensor adapting to a complex environment.

The invention discloses a high-strength, ultra-high-temperature-resistant and ultra-low-temperature-resistant oil-resistant polyvinyl chloride flame-retardant sheath material and a preparation method thereof. The formula of the sheath material comprises the following components in parts by weight: 40-70 parts of PVC resin with the polymerization degree of 2500; 30 to 50 parts of PVC resin with a polymerization degree of 1300; 15 to 30 parts of ABS resin; 10-20 parts of powdered nitrile rubber; 30 to 50 parts of EVA resin; 40 to 70 parts of a Monocizer W-795 plasticizer; 5 to 10 parts of antimony trioxide; 8-12 parts of zinc borate; 20 to 40 parts of filler; 10-15 parts of a calcium-zinc heat stabilizer; 0.4 to 0.6 part of a lubricant; and 2-5 parts of a processing aid. PVC / ABS is used as a framework to provide material strength, EVA resin with high vinyl acetate content is added to increase cold resistance of the material, and EVA and nitrile rubber are used for synergistically improving oil resistance of the material. The device is suitable for rapid temperature difference change and high-oil environments.

The application relates to the technical field of gas sensor control devices, and discloses a gas sensor control device which comprises a sealed box, the outer wall of the sealed box is provided with a side plate, the inner cavity of the sealed box is provided with a reference cavity, and the inner cavity of the reference cavity is fixedly provided with a reference gas sensor. The gas sensor control device and the control method are characterized in that the reference cavity and the measuring cavity are arranged, the reference cavity is filled with high-purity nitrogen in a sealed mode, the reference gas sensor, the temperature and humidity sensor and the TEC temperature control module are arranged, and a stable zero point reference is formed; the zero point reference cavity is constructed, the reference cavity outputs a pure environmental interference signal, the measuring cavity outputs a mixed signal of concentration and interference, the controller performs difference operation, the environmental influence can be eliminated, the real gas concentration is output, the current of the TEC plate is controlled according to the environmental temperature, the direction of the current is changed, the hot end and the cold end of the TEC plate are changed, and the working temperature of the sensors in the measuring cavity and the reference cavity is adjusted.

The invention discloses an automatic adjusting device for a water-cooled frequency converter test bed, and relates to the technical field of heat dissipation, the automatic adjusting device comprises a frequency converter test bed function assembly, a water cooling unit and a control system, the frequency converter test bed function assembly comprises a power module, a capacitor, a laminated busbar and a radiator, and the capacitor and the power module are connected through a copper busbar. The power module is mounted on the radiator, a plurality of groups of coil flow channels are arranged in the radiator, and a medium for radiating flows in the coil flow channels; the water cooling unit is communicated with the frequency converter test bed functional assembly through a medium pipeline, and media in the water cooling unit and the frequency converter test bed functional assembly circularly flow; the control system is electrically connected with the frequency converter test bench functional assembly and used for controlling the medium flow. Due to the design of the flow channel of the radiator in the device, liquid can take away heat in the flow channel more easily, and heat exchange with higher efficiency is achieved; and due to the design of the heat dissipation aluminum plate, better optimal flow velocity and flow are provided for heat dissipation of the capacitor and the interior of the whole device.

The invention relates to a basalt fiber toughened low-expansion glass-based composite material and a preparation method thereof, and belongs to the technical field of composite materials, the basalt fiber toughened low-expansion glass-based composite material comprises the following components by weight: 30-48 wt% of beta-eucryptite, 0.2-6 wt% of basalt fiber and 51.5-67.5 wt% of high borosilicate glass powder, beta-eucryptite, basalt fibers and high borosilicate glass powder are subjected to ball milling, pulping, forming, drying and vacuum pressure sintering to prepare the basalt fiber toughened glass-based composite material. The basalt fiber toughened glass-based composite material prepared by the invention has the advantages of small density, compactness, high mechanical strength and low thermal expansion coefficient, and meets the requirements on mechanical properties and dimensional stability of the composite material in a special environment.

The utility model discloses a heat dissipation device, a liquid cooling heat dissipation assembly and a battery pack. The problem of thermal runaway of the battery pack caused by local heat accumulation due to uneven heat dissipation of a battery pack is solved. The heat dissipation device comprises a shell, the shell is provided with a liquid inlet end and a liquid outlet end which deviate from each other in the first direction, and a first side wall and a second side wall which are opposite to each other in the second direction; at least one flow choking structure sunken towards the second direction is arranged between the liquid inlet end and the liquid outlet end, and the at least one flow choking structure is located on the first side wall and / or the second side wall; the shell is internally provided with at least one first flow channel and a plurality of second flow channels, the second flow channels are located on the two sides of the flow blocking structure in the first direction, the second flow channels communicate with the first flow channel, and the second flow channels communicate with the second flow channel in the second direction; the flow choking structure is used for enabling cooling liquid in the multiple upstream second flow channels to converge into the first flow channel and then flow into the multiple downstream second flow channels.

The invention relates to a double-electric-drive-axle temperature control system and method and a vehicle. The system comprises a temperature collecting unit, a heat management loop, a heat pump unit and a main control unit. The temperature acquisition unit is at least arranged in the double-electric-drive bridge; the heat management loop comprises a cooling liquid storage unit, a water pump unit, a three-way valve unit and a heat exchange unit, the heat exchange unit is at least partially arranged on the double-electric-drive bridge, and the water pump unit is arranged between the cooling liquid storage unit and the three-way valve unit; the heat pump unit is in thermal communication with the heat exchange unit and is used for transferring heat of the double-electric-drive axle to an in-vehicle air conditioning system or a power battery under a preset condition; the main control unit is electrically connected with the above units and used for controlling the flow of the water pump unit and the opening degree of the three-way valve unit according to the oil temperature so as to adjust the flow of cooling liquid entering the heat exchange unit and / or controlling the output torque distribution ratio of the double-electric-drive bridge and / or controlling the working state of the heat pump unit. And the oil temperature of the double-electric-drive axle is maintained within the preset temperature range.