964 results about "Cooling channel" patented technology

The invention provides an automobile balance block die-casting mould, which comprises a push cylinder, an upper mould base, an upper mould, a lower mould and a lower mould base, wherein the upper mould is arranged on the lower end of the upper mould base; the lower mould is arranged on the upper end of the lower mould base; the upper mould base is connected to the upper end of the lower mould base through a guide pillar; cooling holes are formed in the upper end face and the lower end face of the upper mould base in a penetrating way; a guide sleeve is connected onto each cooling hole. According to the automobile balance block die-casting mould, each cooling channel is communicated with a blind hole, each blind hole is communicated with a cooling hole, and each guide sleeve is arranged on the corresponding cooling hole, so that the mould can be cooled conveniently and quickly through injecting cooling water in the guide sleeves; the cooling channels are arranged at equal distances and in parallel, so that cooling is uniform, the cooling effect can be further improved, and the product quality is improved; the automobile balance block die-casting mould is simple in structure, convenient to operate, and good in cooling effect.

An electric vehicle including a frame; at least one ground-engaging member operatively connected to the frame; an electric motor operatively connected to the at least one ground-engaging member; an electric powerpack supported by the frame, the powerpack including: a battery pack defining a battery cooling channel; and a plurality of battery cells housed in the battery housing; a charger defining a charger cooling channel; an inverter including an inverter cooling channel, the battery cooling channel, the charger cooling channel, and the inverter cooling channel being fluidly connected together by rigid fluid connections; radiators fluidly connected to the battery cooling channel; a cooling circuit being formed at least in part by the battery cooling channel, the charger cooling channel, the inverter cooling channel, and the at least one radiator; and a pump fluidly connected to the cooling circuit for pumping liquid coolant through the cooling circuit.

The invention relates to the technical field of gear boxes, and discloses an efficient heat dissipation gear box with a built-in magnetic fluid cooling channel, which comprises a reduction gear box, an input shaft, an output shaft, a transmission gear and a planet carrier, the magnetofluid cooling assembly comprises an annular cooling pipe filled with magnetofluid, a radiator and two sets of connecting frames, the cooling pipe is partially arranged in the reduction gear box, and the other part of the cooling pipe penetrates through the reduction gear box and extends to the outside. The radiator is fixedly arranged on the outer side of the reduction gear box to radiate the other part of the cooling pipe, the connecting frame is in transmission connection with the input shaft or the output shaft, and a permanent magnet is fixedly arranged at the outer end of the connecting frame. By means of the built-in magnetofluid cooling assembly, the permanent magnet is driven to rotate by means of the input shaft or the output shaft, magnetofluid is driven to circularly absorb heat and radiate heat through the radiator, extra power is not needed, heat transfer is fast, and no cooling dead angle exists.

A battery structure includes a first battery cell, a first support plate having a first cooling channel for cooling the first battery cell and supporting the first battery cell, a second battery cell spaced downward from the first support plate, and a second support plate having a second cooling channel for cooling the second battery cell and supporting the second battery cell. A fire extinguishing nozzle may be formed in the first cooling channel, and the fire extinguishing nozzle may supply a fire extinguishing agent toward the second battery cell.

The invention discloses a thermal management control method and system for a lithium ion battery pack, and relates to the field of thermal management control, and the method comprises the steps: obtaining a heat production limit value of the lithium ion battery pack under the condition of a configuration combination scheme; simulating a reaction state when the lithium ion battery pack is subjected to thermal runaway, and evaluating the heat burst and combustion speed of the lithium ion battery pack in combination with a temperature change curve in the thermal runaway process; screening out an optimal arrangement mode of the lithium ion battery pack, and establishing test sample points taking the number of cooling channels and the thickness of the phase change material as design quantities; simulating the heat absorption process of the lithium ion battery pack in the optimal arrangement mode, and obtaining the optimal number of cooling channels and the thickness of a phase change material in a target range according to a simulation result; and establishing a target optimization model relationship according to the optimal number of cooling channels, adjusting the structure of the liquid cooling plate, and optimizing the thermal management process of the lithium ion battery pack. According to the invention, the battery pack can be kept in a safe temperature range in the rapid charging and discharging process.

The invention relates to the technical field of superconducting cyclotrons, and discloses a spiral resonant cavity for a superconducting cyclotron, which comprises an upper resonant cavity body and a lower resonant cavity body, and the upper resonant cavity body is positioned right above the lower resonant cavity body; through distributed waterway design and structural optimization, the cooling system can effectively process heat generated in the accelerator; efficient heat dissipation of the system is ensured through design means such as a multi-directional cooling channel, an oxygen-free copper brazing pipeline and a double-path independent cooling pipe, excessive accumulation in a high-temperature area is avoided, and meanwhile the stability of equipment can be kept in long-time operation; the structure of the single inner rod is convenient for voltage distribution adjustment, the structure is simple and compact, and the processing complexity and the manufacturing cost are greatly reduced; a core component solution with high reliability and low operation and maintenance cost is provided for the superconducting cyclotron, and application efficiency upgrading in the fields of medical treatment, scientific research and the like is promoted.

The invention discloses a die-casting die oil cylinder piston rod with a built-in high-pressure air cooling channel, relates to the technical field of automobile non-ferrous metal casting, and aims to solve the technical problem that high-temperature transmission in the piston rod is difficult to solve fundamentally by adopting an external cooling mode. One end of the piston rod body is connected with a driving end connector, the other end of the piston rod body is connected with a tail barrel, the air inlet end of the tail barrel is connected with a vortex cooling pipe, a control frame is arranged on the side of the tail barrel, and an inner cavity of the piston rod body is provided with a direction adjusting unit and an airflow channel. A transfer groove, a plurality of cylinder direction cooling channels and a plurality of die direction cooling channels are formed in an inner cavity of the driving end connector, the direction adjusting unit comprises an adjusting block arranged in the transfer groove in a sliding mode, the side wall of the adjusting block is connected with an adjusting rod, and a driving piece is arranged at the end of the adjusting rod. The piston rod has the advantages that air cooling is conducted on the interior of the piston rod body, and secondary heat exchange is achieved through residual cooling capacity of cold air flow.

The invention belongs to the technical field of engineering machinery, and discloses a transmission system and engineering machinery. The transmission system comprises an integrated shell, a motor assembly, a brake assembly and a speed reducer assembly, the motor assembly, the brake assembly and the speed reducer assembly are arranged in the integrated shell and distributed in the first direction, an output piece of the motor assembly is in transmission connection with an input piece of the speed reducer assembly through the brake assembly, and an output piece of the speed reducer assembly is connected with the hub. The integrated shell is provided with a cooling channel set, and the cooling channel set can conduct heat dissipation on the motor assembly, the brake assembly and the speed reducer assembly at the same time. By arranging the integrated shell, the structure of a transmission system can be simplified, the cost can be reduced, the machining consistency is good, the supporting rigidity is better, and transmission errors caused by structural deformation are reduced; the cooling channel group is arranged on the integrated shell, so that the motor assembly, the brake assembly and the speed reducer assembly can be cooled at the same time by only one cooling system, the utilization rate of the cooling system is improved, the cooling efficiency is high, and the service life of the system is prolonged.

Various embodiments of the teachings herein include a stator housing for an axial flux machine with a rotor to rotate about an axis of rotation, a stator spaced apart from the rotor along the axis of rotation, and a fluidtight interior space containing coil receiving locations in a circumferential direction around the axis of rotation to receive electromagnetic coil assemblies, wherein each coil assembly has at least one coil wound axially around a stator tooth. An example includes: a liquid cooling system having a first cooling channel extending circumferentially in the stator housing; and a second cooling channel separate from the first and extending circumferentially in the stator housing; wherein the interior space holds a cooling liquid in thermal contact with cooling liquid in the first and the second cooling channel.

In an embodiment, a package includes an encapsulant laterally surrounding a first integrated circuit device and a second integrated circuit device, wherein the first integrated circuit device includes a die and a heat dissipation structure over the die; a sealant disposed over the heat dissipation structure; an adhesive disposed over the second integrated circuit device; and a lid disposed over the sealant and the adhesive, wherein the lid includes a first cooling passage and a second cooling passage, the first cooling passage including an opening at a bottom of the lid and aligned to the heat dissipation structure, the second cooling passage including channels aligned to the second integrated circuit device and being distant from the bottom of the lid.

The utility model belongs to a liquid cooling assembly, a battery module and a battery pack in the technical field of power batteries. The liquid cooling assembly comprises a cold plate group which comprises at least two liquid cooling plates, an accommodating space is formed between the adjacent liquid cooling plates, and cooling channels are arranged in the liquid cooling plates; the head end and the tail end of each liquid cooling plate are respectively provided with an independent current collector, a current collecting channel is arranged in each current collector, and the current collecting channels are communicated with the cooling channels in the corresponding liquid cooling plates; the head ends and the tail ends of the plurality of liquid cooling plates of the same cold plate group are directly assembled and connected through a plurality of corresponding current collectors, and the current collecting channels of the plurality of current collectors connected with at least one end are communicated. The independent current collectors are arranged at the head end and the tail end of each liquid cooling plate, so that the liquid cooling plates can be mounted in sequence to reduce the assembly difficulty, pipelines can be shared, the on-off of cooling channels among the liquid cooling plates can be flexibly arranged, and the requirement for diversification of the flowing direction of a cooling medium is met.

An atomic layer deposition apparatus including an atomic layer deposition reactor and a reactor door. The reactor door is arranged against the end edge of the reactor in a closed position of the reactor. The apparatus having a cooling arrangement for cooling the reactor door having a shell structure surrounding the reactor from the outside of the reactor such that a cooling channel is formed between the shell structure and the at least one side wall of the reactor; a heat exchanger element arranged in the cooling channel in an area of the end edge; and a ventilation discharge connection in connection with the cooling channel provided at a distance from the edge end.

The invention relates to an electric drive device (1) for a vehicle, comprising an electric machine (12), an inverter (13) electrically connected to the electric machine (12), and a refrigerant compressor (14), wherein the electric drive device (1) has a housing (10) having a first chamber (22) in which the electric machine (12) is arranged, and a second chamber (23) in which the inverter (13) is arranged, and having a partition (45) separating the first chamber (22) from the second chamber (23), wherein a cooling channel (30) for cooling the inverter (13) is provided in the partition (45), wherein the cooling channel (30) has an inlet (31) and an outlet (32), and wherein the refrigerant compressor (14) is arranged in a refrigerant compressor housing (24) of the electric drive device (1).wherein the refrigerant compressor housing (24) has a refrigerant inlet (25) for the inlet of the refrigerant (70) to be compressed into the refrigerant compressor housing (24) and a refrigerant outlet (26) for the outlet of the compressed refrigerant (70) from the refrigerant compressor housing (24). The outlet (32) of the cooling channel (30) is connected to the refrigerant inlet (25) of the refrigerant compressor housing (24).

This utility model discloses a high-temperature resistant cooling circulation structure for a fluoroplastic magnetic pump, specifically relating to the field of magnetic pumps. It includes a base, pump body, pump cover, connecting frame, isolation sleeve, inner magnetic rotor, outer magnetic rotor, motor, and impeller. The isolation sleeve, inner magnetic rotor, and outer magnetic rotor are all housed inside the connecting frame. The high-temperature resistant cooling circulation structure of this fluoroplastic magnetic pump features a spiral cooling channel inside the isolation sleeve. The coolant flows directly through the core area of ​​the heat source, rapidly absorbing heat transferred by magnetic eddy currents and high-temperature media through forced convection, thus improving cooling efficiency and effectively blocking heat transfer to the outer magnetic rotor, preventing permanent magnets from demagnetizing and failing due to high temperatures. Copper-nickel alloy heat-conducting fins are welded to the inner wall of the isolation sleeve, combined with a layer of thermally conductive silicone grease, accelerating the conduction of heat from the inner magnetic rotor to the cooling channel. A vacuum cavity is provided between the spiral cooling channel and the outer wall of the isolation sleeve to suppress heat conduction to the outer magnetic rotor, achieving double thermal isolation.

The invention relates to a contacting system (5) for individual battery cells (2) of a battery module (1) with cell connectors (8, 10, 11) for contacting the cell terminals (3, 4) of at least two of the individual battery cells (2) of the battery module (1). The contacting system according to the invention is characterized in that at least one of the cell connectors (8, 10, 11) has an internal cooling channel (9) for receiving a cooling medium.

The application relates to the technical field of high-speed centrifugal blowers, and discloses a single-stage air-floating blower which comprises an outer shell body, an inner shell body, a first end cover, a second end cover, a third end cover, a fourth end cover, a stator, a rotor shaft, a thrust disc, a volute body, a gas compression impeller, a main fan, an auxiliary fan, a radial air-floating bearing and an axial air-floating bearing. The main fan is arranged to cool the stator, the rotor and the radial air-floating bearing, the auxiliary fan is arranged to cool the axial air-floating bearing, and after the auxiliary fan cools the axial air-floating bearing, the cooling gas in the channel can flow into the cooling channel of the main fan. Compared with the previous air-floating blower scheme, the cooling efficiency between the stator and the rotor is improved, and the air amount entering the axial air-floating bearing is increased by arranging the auxiliary fan.

The utility model relates to the field of motors, in particular to a motor heat dissipation structure, which comprises an outer cylinder arranged at the rear end of a casing, an air inlet casing is arranged at the rear end of the outer cylinder, an inner cylinder is arranged in the outer cylinder, the outer cylinder and the inner cylinder are separated from each other, and a cooling channel for cooling airflow to pass through is formed between the outer cylinder and the inner cylinder. A supporting pipe for fixedly connecting the outer cylinder and the inner cylinder is arranged between the outer cylinder and the inner cylinder, air outlet holes communicated with the supporting pipe are formed in the outer cylinder and the inner cylinder, an air baffle is arranged on the front side of the inner cylinder, the air baffle and the air inlet shell are mutually spaced, an avoiding hole for a motor rotor to penetrate through is formed in the air baffle, and a fan impeller is installed on the motor rotor. The fan impeller is located at the front portion of the air inlet shell, a motor stator is installed in the machine shell, the motor stator and the machine shell are arranged in a spaced mode to form an air outlet channel for cooling airflow to pass through, the motor heat dissipation structure optimizes the circulation path of the cooling airflow, and the cooling effect on heating components in the motor is enhanced. The problem that the cooling airflow cannot enter the motor for cooling is solved.

The invention provides a battery box assembly, and relates to the technical field of batteries, the battery box assembly comprises a bottom protection plate and a side frame; a plurality of cooling channels are formed in the bottom protection plate, the cooling channels are arranged in the first direction, and the multiple cooling channels are sequentially arranged in the second direction; the side frame comprises two first side plates and a second side plate, the two first side plates are connected to the two sides, in the first direction, of the bottom protection plate correspondingly, the second side plate is connected to one side, in the second direction, of the bottom protection plate and connected to the two first side plates correspondingly, and liquid passing channels formed in the second direction are formed in the two first side plates correspondingly. The liquid passing channel of one first side plate is communicated with one ends of the multiple cooling channels, the liquid passing channel of the other first side plate is communicated with the other ends of the multiple cooling channels, and a liquid inlet channel and a liquid outlet channel which are correspondingly communicated with the two liquid passing channels are formed in the second side plate. The vertical height of the battery box assembly can be reduced, and the cost of the battery box assembly can be reduced.

The present invention comprises a chip, a cooling substrate is formed over the first surface of the cooling substrate, a cooling channel is formed on the cooling substrate to dissipate the heat generated by the chip, wherein the cooling channel includes a cooling liquid or gas; a power substrate is provided and the power substrate includes a power grid to provide power to the chip from the second surface of the chip. The chip, the cooling substrate, and the power substrate are stacked together.

This invention relates to an atomic layer deposition apparatus and process based on multidimensional electric field vector control, comprising a reaction chamber assembly, a gas distribution assembly, an electric field generating assembly, a substrate rotation mechanism, and a multidimensional electric field control system. The reaction chamber assembly includes an upper chamber and a lower chamber. The upper chamber is provided with a first reaction source inlet, a second reaction source inlet, and a carrier gas inlet. The lower chamber is provided with a tail gas outlet. The gas distribution assembly includes a spray nozzle located at the bottom of the upper chamber. A flow equalization plate is provided between the spray nozzle and the carrier gas inlet. A cooling channel is provided inside the spray nozzle, which is connected to a spray cooling water inlet and a spray cooling water outlet. This invention not only achieves precise control of the adsorption, migration, and reaction process of reaction source atoms on the substrate surface, improving thin film deposition efficiency, uniformity, conformability, and quality, but also meets the needs of high-precision thin film preparation in fields such as semiconductors and optoelectronic devices.

The invention belongs to the technical field of machine tools, and particularly relates to a five-axis cradle rotary table and a machine tool, the five-axis cradle rotary table comprises an A-axis mechanism, a C-axis mechanism, a tailstock pipeline distributor and a C-axis pipeline distributor, the tailstock pipeline distributor comprises a first fixing part and a first rotating part, the first fixing part is installed on a tailstock, and the first rotating part is installed in a tailstock rotating shaft; the C-axis pipeline distributor comprises a second fixing part and a second rotating part, the second fixing part is installed on the C-axis machine body, and the second rotating part is installed in the C-axis rotating shaft. The first rotating channel communicates with the cooling channel through a first pipeline and communicates with the second fixed channel through a second pipeline. According to the five-axis cradle rotary table and the machine tool, the tailstock pipeline distributor and the C-axis pipeline distributor are arranged, so that the first pipeline and the second pipeline are not forced to twist due to the fact that the C-axis machine body rotates around the A axis any more, pipelines in the C-axis machine body are not twisted or leaked due to the fact that the C-axis rotary disc rotates around the C axis any more, the use safety of the rotary table is improved, and the service life of the rotary table is prolonged.

Fluid-permeable cooling plate (1) for arrangement on a vehicle battery component, comprising a plate-shaped base plate (2) and a plate-shaped top plate (3) which are spaced apart from each other and which are joined together by an adhesive bond (7, 8), wherein at least one fluid-permeable cooling channel (9) is arranged between the base plate (2) and the spaced-apart top plate (3), characterized in that at least one fluid-carrying wall (8) of the cooling channel (9) is formed by the adhesive bond (7, 8), wherein the adhesive bond (7, 8), in particular an adhesive for forming it, is applied directly to a surface of the base plate (2) and a surface of the top plate (3).

The utility model relates to the technical field of gear dies, and discloses a gear hot die forging die with a cooling channel, a lower die is mounted at the center of the upper surface of a bottom plate, a positioning column for positioning is fixedly mounted at the side end, corresponding to the lower die, of the upper surface of the bottom plate, and a top plate for supporting is fixedly mounted at the upper end of the positioning column; the upper heat conduction layer is in close contact with the cooling water pipe, and the lower heat conduction layer is connected with the cooling water pipe through a connecting pipe, so that the double heat conduction structure greatly improves the heat conduction efficiency, and the mold can be rapidly cooled in cooperation with the heat dissipation effect of the ventilation opening; and the cooling water pipe, the auxiliary pipe and the annular pipe are arranged in a surrounding manner, so that all parts of the mold can be uniformly cooled, the local overheating or supercooling condition is avoided, the uniformity of a mold temperature field is ensured, and the consistency and stability of gear forming are favorably improved.

A system (1) for casting metal (2), the system (1) comprising a mold (6) with a feeder (4) supplying a casting section (3). The system (1) comprises an insulating sleeve (10) surrounding at least a portion of the feeder (4) and an induction coil element (20) for placement outside the insulating sleeve (10). The induction coil element (20) comprises an induction coil (21) and a cooling channel (22) for controlling the temperature of the metal (2) within the feeder (4). The system (1) comprises a control unit (30) connected to the induction coil element (20) for controlling power to the induction coil (21) and for providing a flow of coolant to the cooling channel (22). The system further comprises a temperature sensor (40) for sensing a temperature at a fixed location within the feeder (4), the temperature sensor (40) being in communication with the control unit (30).

The invention relates to the technical field of aero-engines, in particular to a baffle connecting structure which comprises a turbine blade, a turbine disc, an elastic check ring, a baffle and a pre-swirl nozzle. An annular groove is formed in the turbine disc; the elastic check ring is provided with an opening and arranged in the annular groove in a contracted mode. The two ends of the baffle are connected with the turbine disc, one end of the baffle is inserted into the annular groove, and the elastic check ring is clamped between the baffle and the groove wall of the annular groove. A cooling channel is defined by the baffles and the turbine disc. A cooling cavity is defined by the prewhirl nozzle and the baffle; a receiving hole is formed in the baffle, and the cooling channel communicates with the cooling cavity through the receiving hole. The pressure of cold air entering the cooling channel can be improved, the sealing pressure is guaranteed, the cooling effect is improved, the deformation probability of the baffle and the turbine disc is reduced, the temperature gradient of the turbine disc is reduced, thermal stress is reduced, the temperature level of the connecting position of all parts is reduced, and the service life of the turbine rotor is prolonged.

The application discloses a high-temperature and high-pressure combustion chamber spectrum characteristic transmission device based on a special optical fiber probe head, which comprises an optical fiber probe head, a light guide optical fiber, a light emitting characteristic analysis device and a cooling liquid pump; the optical fiber probe head comprises high-transmittance optical glass, a metal cooling sleeve and an optical flange; the high-transmittance optical glass can transmit ultraviolet-visible light with a wavelength of 100-760 nm; the metal cooling sleeve comprises a cylindrical sleeve and a connecting cap; the cylindrical sleeve is coaxially arranged on the outer periphery of the high-transmittance optical glass and is sealingly arranged in a probe head mounting hole; the light guide optical fiber can collect the ultraviolet-visible light transmitted through the high-transmittance optical glass and is connected with the light emitting characteristic analysis device; and the cylindrical sleeve and the connecting cap are both provided with cooling channels connected with the cooling liquid pump. The application can analyze the chemical reaction light emitting characteristics in the high-temperature and high-pressure combustion chamber in real time, is especially suitable for monitoring the spontaneous radiation characteristics of OH*, CH* and C2* groups generated in the combustion process, and thus can determine the reaction region and the reaction heat release.

Example embodiments provide a pack housing. The pack housing includes a first cooling plate including a first cooling channel extending in a first direction and first and second vias connected to the first cooling channel, a second cooling plate including a plurality of second cooling channels extending in the first direction and third and fourth vias connected to the second cooling channel, and a refrigerant coupler between the first and second cooling plates, and the refrigerant coupler includes a first distribution port connected to the first via, a second distribution port connected to the second via, a third distribution port connected to the third via, and a fourth distribution port connected to the fourth via.

The utility model discloses a kind of cooling mechanisms for vacuum machine, it is related to vacuum machine technical field, including body, the right side lower end of body is perforated and is provided with mounting port, the inside fixed mounting of mounting port has fan, the inside lower end of body is fixedly connected with cooling plate, the upside of cooling plate is fixedly connected with several first heat-conducting plates, the upside of first heat-conducting plate is fixedly connected with several second heat-conducting plates, the inside of cooling plate is provided with cooling channel, the left side lower end of body is perforated and is provided with several ventilation grooves, the downside central position of cooling plate is fixedly connected with circulation tank, the downside fixed mounting of circulation tank has semiconductor refrigeration piece.The utility model is provided with cooling plate, first heat-conducting plate, second heat-conducting plate, cooling channel, ventilation groove, circulation tank, semiconductor refrigeration piece and fan, can effectively improve the cooling effect of mechanism, prevent equipment temperature excessively high influence normal operation of equipment, avoid temperature excessively high when equipment operation increase energy consumption.

The utility model discloses a new energy automobile radiator with a double-channel heat dissipation structure, which comprises a liquid inlet header pipe, a liquid outlet header pipe, a heat dissipation module and a fan, a first cooling channel and a second cooling channel which are mutually independent are arranged in the heat dissipation module, and the first cooling channel and the second cooling channel are communicated with the liquid inlet header pipe through a three-way valve. The double-channel cooling liquid circulation structure is matched with the three-way valve and the temperature sensor, and the flow direction and flow of cooling liquid can be intelligently adjusted according to different working conditions and heating differences of parts of the new energy automobile. When the load is low, the first cooling channel with the large sectional area realizes primary heat dissipation; when the load is high, the second cooling channel with the small sectional area accelerates the flowing speed of cooling liquid and enhances local heat dissipation, compared with a single-channel structure, the problem of uneven heat dissipation is effectively solved, and the temperature difference of all areas of the heat dissipation module is remarkably reduced.

The application discloses a cooling micro-mixing nozzle, a combustor and a gas turbine. The cooling micro-mixing nozzle comprises a nozzle body, a gas outlet and a plurality of cooling holes are arranged at a gas injection end of the nozzle body, the gas outlet is arranged to spray combustible gas, and the cooling holes are arranged to spray cooling air to cool the gas injection end; a micro-mixing channel, a cooling channel and a cooling cavity are arranged in the nozzle body, the micro-mixing channel is arranged to convey the combustible gas, and an outlet end of the micro-mixing channel is the gas outlet, the cooling channel, the cooling cavity and the cooling holes are sequentially communicated, so that the cooling channel provides the cooling air to the cooling cavity, and the cooling air in the cooling cavity is sprayed from the cooling holes. The scheme provided by the application can effectively protect the gas injection end of the micro-mixing nozzle by the cooling air, and prolong the service life of the micro-mixing nozzle.