41results about How to "Control temperature rise" patented technology

The utility model discloses a waste heat recovery stove which comprises a burner, a stove body and a stove cover, a rechargeable battery module; the upper surface of the thermoelectric power generation module comprises a hot end, and the lower surface comprises a cold end; the heat collector is arranged close to the combustor, and the heat collector is connected with the hot end of the thermoelectric power generation module; the radiator is in contact with the cold end of the thermoelectric power generation module, and the radiator is located below the cold end of the thermoelectric power generation module; the shell comprises a bottom shell and a panel arranged on the bottom shell, the thermoelectric power generation module is arranged between the bottom surface of the bottom shell and the panel, a mounting hole is formed in the bottom surface, and at least part of the radiator protrudes out of the bottom surface downwards through the mounting hole; and a circulation part for airflow circulation is formed between the radiator and the mounting hole. The heat dissipation performance of the cold end of the thermoelectric power generation module can be effectively improved, and the large temperature difference between the hot end and the cold end is guaranteed.

The invention relates to a miniature transformer suitable for a low-power-consumption charger and a rapid assembling method of the miniature transformer. The miniature transformer comprises a fixed iron core and a movable iron core which are arranged on a base, and an air gap is reserved between the fixed iron core and the movable iron core; a limiting seat positioned at one end of the framework is detachably mounted on the base; the movable iron core is positioned between the limiting seat and the framework; a plurality of bimetallic strips are mounted on one side, close to the limiting seat, of the framework, and the bimetallic strips are configured to control the air gap to be increased during temperature rise; a plurality of shape memory alloy springs are arranged between the limiting seat and the movable iron core, and the shape memory alloy springs are configured to be converted into an austenite phase and softened when the temperature rise exceeds the phase change temperature of the shape memory alloy springs; and when the temperature is reduced to the phase transition temperature, the shape memory alloy spring is converted into a martensite phase and recovers elasticity to drive the movable iron core to be far away from the limiting seat, so that the air gap is reduced. According to the invention, the air gap is automatically adjusted along with the temperature rise, and the temperature rise is controlled, so that the electromagnetic efficiency in different load states is ensured.

The invention provides a diaphragm with an active coating for a battery and a preparation method of the diaphragm. The diaphragm is composed of a diaphragm substrate and a composite coating coated on the substrate, the composite coating comprises an outer coating and an inner coating, wherein the outer coating contains N-methyl-N-propyl pyrrolidine bis (trifluoromethanesulfonyl) imide, and the inner coating contains any one or more of polyacrylic acid, a metal organic framework compound, modified boehmite, polyvinylidene fluoride and polymethyl methacrylate. The N-methyl-N-propyl pyrrolidine bis (trifluoromethanesulfonyl) imide salt is coated on the diaphragm, so that the thermal stability and the ionic conductivity of the diaphragm can be enhanced, the internal resistance of the battery is reduced, the charge-discharge efficiency of the battery is improved, the cycle life of the battery is prolonged, and meanwhile, the potential harm to the environment is relatively small. The N-methyl-N-propyl pyrrolidine bis (trifluoromethanesulfonyl) imide salt has good compatibility with the electrolyte of the lithium ion battery and is not easy to generate chemical reaction, so that the performance stability and the safety of the battery are ensured.

The application provides a large vertical machine tool water-cooling oil-immersed direct-drive permanent magnet driving motor, which comprises a base and a work rotary table, an annular cavity is arranged in the base, a rotor assembly and a stator assembly are arranged in the annular cavity, the rotor assembly is installed on the work rotary table, the stator assembly is installed on the base, a cross roller bearing is arranged between the base and the rotor assembly, an inner ring of the cross roller bearing is installed on the base, and an outer ring is installed on the rotor assembly; an encoder is arranged between the base and the work rotary table; the annular cavity is filled with cooling machine oil to form an oil-immersed cooling system, a water cooling assembly is further arranged in the annular cavity, and an oil inlet and outlet interface is arranged at the bottom of the base and is communicated with the annular cavity. Through the above structure, the application has high cooling efficiency, direct driving without gap, high carrying capacity, and is suitable for heavy load high-precision machining above 10T.

The invention relates to the technical field of batteries, in particular to a battery charging current calculation method and device, a medium and a battery management system. The method mainly comprises the steps of obtaining battery basic information and battery charging information; substituting the battery basic information and the charging information into a function that the battery temperature changes along with the charging current, and calculating the charging current; correcting the charging current based on the battery aging state SOH; and feeding back a closed-loop control charging current according to the temperature deviation. According to the invention, the feedforward charging current calculated based on the battery thermal model and the aging state can adapt to different environment temperatures and the aging state of the battery; by setting different charging target cut-off SOC values and target boundary temperature limit values and combining the deviation between the battery temperature and the target temperature limit value, the charging current and temperature rise of the battery can be controlled, so that the aging speed of the battery is controlled, and over-temperature charging or lithium precipitation is avoided.

The utility model provides a kind of vibration platform structure of spherical graphite vibration grinding machine, belong to graphite vibration grinding machine technical field, the vibration platform structure of this spherical graphite vibration grinding machine, it include: vibration platform body, vibration excitation device, elastic support component, grinding vessel, transmission connecting mechanism and damping control device, vibration platform body is rectangular plate, and upper surface central fixed spherical grinding vessel;Excitation motor is fixed in the center of bottom surface, output shaft is coaxial with eccentric wheel component, and main, vice eccentric wheel is divided on the upper and lower ends of rotating shaft;Each elastic support unit is arranged in four corners, including support seat and helical compression spring, support seat bolt is fixed bottom surface, and spring lower end is connected ground surface;Vibration is transmitted to grinding vessel by platform by transmission connecting mechanism;The utility model can solve the technical problems that vibration transmission efficiency is low, grinding uniformity is poor and equipment stability is insufficient in the vibration platform structure of spherical graphite vibration grinding equipment in the prior art.

A compression type atomizer comprises a shell, a compression pump assembly, a silencing box and a heat dissipation exhaust fan, a filtering air inlet is connected with an inlet of the compression pump assembly through a pipeline via the silencing box, and an outlet of the compression pump assembly is connected with an air outlet through a pipeline; the bottom of the compression pump assembly is connected with the inner bottom surface of the shell through a buffer pad, and the top of the compression pump assembly is in compression fit with the inner top surface of the shell through a damping layer; the left end and the right end of the shell are each provided with a heat dissipation air inlet so that the heat dissipation air inlets can be aligned with the two ends of the compression pump assembly. The heat dissipation exhaust fan is arranged on the front side or the rear side of the compression pump assembly, a heat dissipation air outlet is formed in the position, opposite to the heat dissipation exhaust fan, of the shell, and therefore a heat dissipation structure with air inlet at the two ends and air outlet at the side is formed.

The utility model discloses a solenoid for electromagnetic valve, including support body and the skeleton of setting in support body inside, the support body includes U type frame and sets up the apron of U type frame open end, still include the electricity incoming subassembly of clamping in one side of U type frame, the electricity incoming subassembly includes circuit board and mounting bracket. The utility model adopts modularization design, and the circuit board and mounting bracket are integrated into electricity incoming subassembly, make from production to operation and maintenance whole process realized optimization: first, the assembly link is simplified operating procedure because of part integration, reduces the cumbersome process of scattered assembly, thereby greatly improves the assembly efficiency, second, when the later maintenance replacement, modularization design makes no need to the coil overall to be disassembled, only needs to carry out single operation to the electricity incoming subassembly, not only simplifies the maintenance process, reduces the maintenance threshold, can also complete the replacement fast, effectively reduces the downtime of equipment because of the failure.

The invention discloses a longitudinal magnetic contact structure of a vacuum interrupter. The structure comprises a contact cup (1), the opening end of the contact cup (1) being connected to a contact sheet (2); oblique grooves (3) are distributed along the circumferential direction on the wall of the contact cup (1), the oblique grooves (3) penetrate the opening end to form a notch (4) on the end surface of the opening end, the notch (4) is tangent to the inner wall (5) of the contact cup (1), and the portion obtained by cutting between two adjacent oblique grooves (3) on the wall of the contact cup (1) constitutes a coil (8); longitudinal magnetic grooves (6) are distributed along the circumferential direction on the edge of the contact sheet (2), the longitudinal magnetic grooves (6) can be axially aligned with the notch (4), and one end of the longitudinal magnetic grooves (6) penetrates the edge of the contact sheet (2). The invention can achieve the purpose of low resistance while maintaining the short-circuit current breaking capacity unchanged, and is also conducive to miniaturized design.

The invention discloses Ti-based alloy powder, which is prepared from the nominal components in percentage by atom: (5 to 10) of Ti, (2 to 5) of Al, (1 to 3) of V, (0.5 to 2.0) of Y2O3 and the balance of Ti and inevitable impurities, the preparation method comprises the following steps: 1, weighing raw material powder; 2, charging and sealing; 3, ball milling; and 4, discharging to obtain Ti-based alloy powder. According to the Ti-based alloy powder disclosed by the invention, high-volume nano Y2O3 is introduced and uniformly dispersed in a Ti matrix to form a dispersion strengthening phase, so that the room-temperature and high-temperature strength, creep resistance and thermal stability of the alloy are improved; according to the mechanical alloying process, the ball-to-material ratio, the rotating speed and the time of ball milling are strictly controlled, intermittent ball milling and external cooling are adopted to control temperature rise and pollution, it is guaranteed that Y2O3 forms nanocrystalline and a dispersion strengthening phase in a Ti matrix, the strength, hardness and thermal stability of the alloy are improved, the process is controllable, and repeatability is good.

A compression type atomizer comprises a shell, a compression pump assembly, a silencing box and a heat dissipation exhaust fan, a filtering air inlet is connected with an inlet of the compression pump assembly through a pipeline via the silencing box, and an outlet of the compression pump assembly is connected with an air outlet through a pipeline; the bottom of the compression pump assembly is connected with the inner bottom surface of the shell through a buffer pad, and the top of the compression pump assembly is in compression fit with the inner top surface of the shell through a damping layer; the left end and the right end of the shell are each provided with a heat dissipation air inlet so that the heat dissipation air inlets can be aligned with the two ends of the compression pump assembly. The heat dissipation exhaust fan is arranged on the front side or the rear side of the compression pump assembly, a heat dissipation air outlet is formed in the position, opposite to the heat dissipation exhaust fan, of the shell, and therefore a heat dissipation structure with air inlet at the two ends and air outlet at the side is formed.

The utility model discloses a drive axle for agricultural machinery, and belongs to the technical field of agricultural machinery. A drive axle for agricultural machinery comprises a shaft A, a shaft B and a shaft C, the shaft A is a power input shaft and is fixedly connected with a first gear; the shaft B is rotationally connected with a second gear, the second gear is in meshed connection with the first gear, a clutch is fixedly installed on the shaft B, the second gear is in clutch connection with the shaft B through the clutch, and a third gear is fixedly installed on the shaft B; the shaft C is a power output shaft, and a fourth gear is installed on the shaft C and connected with the third gear in a meshed mode. By installing the clutch on the shaft B, when the device is used as a driven axle, the shaft B is controlled to be separated from the second gear through the clutch, so that power transmitted by tires is not transmitted to the front end any more, the rotating speed of the shaft A and the motor or the motor basically tends to zero, and noise, vibration and temperature rise are effectively controlled.

The utility model discloses a molded case circuit breaker with a heat dissipation structure, the molded case circuit breaker with the heat dissipation structure comprises a base and wiring terminals arranged at two ends of the base, two ends of the base are provided with a plurality of grooves at equal intervals and are located below the wiring terminals, the wiring terminals are provided with heat dissipation pieces and are arranged in the grooves, and the heat dissipation pieces are arranged in the grooves. A wind tunnel is formed in the side edge of the base and penetrates through the multiple grooves to the other side of the base, and a strong heat dissipation assembly is arranged at an inlet of the wind tunnel and communicates with the wind tunnel. According to the utility model, the air flow speed in the wind tunnel is improved through the strong heat dissipation assembly, heat exchange is carried out with the heat dissipation piece, the temperature rise of the wiring terminal is further effectively reduced, and through the structural design of the concave cavity and the wind tunnel, stable cold air can be conveyed to the wind tunnels at the two sides of the base through only one centrifugal fan; therefore, the energy consumption during forced air cooling is reduced, and the product has the advantages of improving the heat dissipation effect and effectively controlling the temperature rise of the wiring terminal.

The utility model discloses an immersed liquid-cooled battery pack. The immersed liquid-cooled battery pack comprises a battery pack shell, a battery module and insulating oil, the battery pack shell is provided with an oil injection port, and is provided with a module accommodating cavity as well as a bottom plate, a circumferential side wall and a top cover which are enclosed to form the module accommodating cavity; the at least one battery module is arranged in the module accommodating cavity; the battery module comprises a module shell and a single battery arranged in the module shell; the module accommodating cavity is filled with the insulating oil, and the insulating oil is configured to immerse the single batteries; a liquid cooling channel is arranged in the bottom plate, the battery pack shell is provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling channel, and the liquid inlet and the liquid outlet are connected with a circulating pipeline. The bottom plate of the immersed liquid-cooled battery pack is provided with the liquid-cooled channel, the non-flowing insulating oil is in full contact with the single batteries in the battery pack and exchanges heat with the single batteries, and the heat exchange medium in the liquid-cooled channel exchanges heat with the battery pack, the battery module and the insulating oil, so that the temperature rise and the temperature difference of the battery pack are controlled.

The utility model relates to the technical field of electronic circuits, in particular to an over-temperature protection circuit, which is characterized by comprising a rectifying circuit, a filter circuit, a chip U1, a metal oxide semiconductor (MOS) tube Q1 driving control network, an intensifier circuit and an adjusting circuit. Wherein the rectifying circuit is used for converting input alternating current into direct current; the filter circuit is used for removing electromagnetic interference in the direct current converted by the rectifying circuit; the chip U1 is used for driving the on and off of the MOS tube Q1; the MOS tube Q1 drives the control network and is used for controlling energy storage and discharge of the energy storage inductor T1; the enhancement circuit is used for enhancing the driving capability of the MOS tube Q1; and the adjusting circuit is used for controlling the output power and temperature of the driving power supply. According to the over-temperature protection circuit provided by the utility model, temperature protection points can be conveniently set by adjusting parameters of components, and the reliability of the components is improved.

The utility model relates to a two-stage speed reducer for an electric drive axle of a light truck, which is mainly used for solving the technical problems that an existing three-stage speed reducer is complicated in structure, large in mass and size and incapable of being well applied to an electric drive axle system of the light truck. A two-stage speed reduction structure with three groups of parallel shafts is adopted, the parking brake is arranged, the transmission speed ratio is 16.098, and the maximum output torque is 5795N. M. Compared with a three-stage speed reducer in the prior art, under the condition that the speed ratio and the output torque are basically unchanged, the speed reducer is lighter in mass, smaller in size, compact in structure and higher in transmission efficiency; and the product manufacturing cost is reduced to the maximum extent, and the structure is better suitable for light truck drive axles.

The utility model relates to carbonaceous matter reactor technical field discloses a deslag heat exchange device and deslag system, include: protective cover, including cylinder and lid, the top wall of cylinder has opening, the lid with top wall is detachably connected and covers opening, the lid is through and is provided with mounting hole, heat exchange pipeline is connected with protective cover arrangement, heat exchange pipeline includes intercommunication setting cylinder pipeline and lid pipeline, cylinder pipeline is arranged in cylinder, lid pipeline is arranged in lid. The utility model passes through the heat exchange medium in the heat exchange pipeline and passes in, makes heat exchange medium to be able to absorb the heat that heat exchange pipeline and protective cover delivered, realizes heat recovery utilization while, controlled protective cover's temperature rise, avoids the deformation and burning loss of protective cover due to high temperature, and avoids other components to be damaged by the influence of protective cover high temperature, effectively improves the thermal efficiency and trouble-free operation cycle of deslag system.

The invention relates to the technical field of cooling of switching devices, in particular to a cubicle body of a gas-insulated switchgear and the gas-insulated switchgear. A containing space used for containing a primary main loop is formed in a closed cabinet body of the inflatable cabinet body, a configured heat exchange assembly comprises a heat exchange pipe, the two ends of the heat exchange pipe are connected with the opposite cabinet walls of the closed cabinet body in a sealed mode respectively and communicate with the exterior of the cabinet body, and then a heat exchange air duct is formed in the heat exchange pipe; the pipe wall of the heat exchange pipe is exposed in the containing space, and the heat exchange assembly further comprises a cooling fan which is arranged on the cabinet wall of the closed cabinet body and used for promoting flowing of air in the heat exchange air duct. According to the inflatable cabinet body, heat dissipated by the primary main loop can be transmitted to the heat exchange tubes through the insulating gas in the closed cabinet body, and when the heat dissipation fan operates, gas flows in the heat exchange air ducts formed in the heat exchange tubes to take away the heat on the heat exchange tubes, so that heat dissipation of the accommodating space is realized, the heat exchange path is shortened, and the heat dissipation efficiency is improved. The heat exchange efficiency is improved, and the temperature rise of the gas-insulated switchgear can be controlled.

The utility model provides a novel zinc cover plate eruption mold, and belongs to the technical field of metallized films for capacitors. The problem that an existing thin-film small-specification capacitor is large in loss is solved. The novel zinc cover plate eruption mold comprises a mold body and a plurality of mold margin areas, a plurality of mold common areas and a plurality of mold thickening areas which are formed on the mold body, a metallized film capacitor comprises a metallized film thickening area, a metallized film common area and a metallized film margin area, and the mold thickening area is provided with a plurality of reinforcing ribs. The utility model has the advantage of small loss of the thin-film small-specification capacitor.

The utility model relates to the technical field of motorized spindles, in particular to a water-cooling motorized spindle, which comprises a casing and a rotating shaft, a front bearing component and a rear bearing component are respectively mounted at the front and the rear of the rotating shaft, a cooling ring cavity is arranged in the wall of the casing, and the front bearing component comprises a front bearing seat, an adapter sleeve, a front bearing and a sealing element. The front bearing assembly comprises a front bearing seat, a front bearing and a sealing piece, a cooling annular cavity is formed in the front bearing seat, a cooling channel communicated with the cooling annular cavity is formed in the front bearing seat, an adapter sleeve is arranged between the front bearing seat and the front bearing, a cooling groove communicated with the cooling channel is formed in the adapter sleeve, and the front bearing and the sealing piece are arranged side by side. And the elastic pre-tightening mechanism is arranged on the front side of the rear bearing. The cooling and elastic pre-tightening mechanism arranged at the front bearing provides axial pre-tightening force for the rear bearing, the contact precision of the rear bearing and the rigidity of the motorized spindle are improved, the performance of the whole motorized spindle can be improved, and the requirement for high-speed and high-precision machining is met.

The present application relates to the technical field of brushed DC motors, and relates to a water-cooled motor, comprising a motor body, a plurality of hollow cavities arranged on the outer shell of the motor body, two annular cavities respectively arranged at the two ends of the outer shell of the motor body, a plurality of water inlets arranged on the motor body near its own head, and a plurality of water outlets arranged on the motor body away from its own head; the annular cavity is provided with a circle with the axis of the rotating shaft of the motor body as the axial direction, a plurality of the hollow cavities are connected to the annular cavity, the water inlet is connected to the annular cavity near the motor body head, the water outlet is connected to the annular cavity away from the head, and the water inlet of the motor body is connected to the existing condensate supply device. The present application has the effect of improving the fan cooling which can only cool the outer shell of the brushed DC motor, and the temperature inside it is still very high.

The utility model discloses a quartz crucible trolley device which comprises a platform frame, a crucible equipment trolley overturning assembly and a ventilation pipeline assembly, the crucible equipment trolley overturning assembly and the ventilation pipeline assembly are located on the platform frame, and in the quartz crucible machining process, a first motor assembly is matched with an overturning long shaft to drive the overturning long shaft to achieve overturning action; the output end of the rotating motor is in meshing transmission with the gear to drive the rotating main shaft to rotate, so that the crucible water jacket operates, and the manufacturing of the quartz crucible is completed; according to the quartz crucible production equipment, the quartz crucible is manufactured through the crucible equipment trolley overturning assembly, bubbles in the manufacturing process are removed through the ventilation pipeline assembly, meanwhile, the temperature of the quartz crucible in the high-speed rotating process is controlled to rise, after the quartz crucible is machined, the equipment is wholly moved to a discharging position and overturned to a corresponding angle through the crucible equipment trolley overturning assembly to assist discharging operation, and the production procedure of the quartz crucible is completed; and the process is repeated, so that automation of the process of producing the quartz crucible and transporting the processed quartz crucible finished product is realized, and meanwhile, the manufacturing quality and the production efficiency of the product are improved.

The utility model belongs to electrical technical field especially relates to a net side filter cabinet based on phase change cooling, including the cabinet body, setting in the phase change cooling electric reactor, filter capacitance, filter electric reactor, filter resistance, current sensor, circuit breaker, brake resistance, lightning arrester in the cabinet body, the phase change cooling electric reactor is fixed in the left lower part in the cabinet body, filter capacitance, filter electric reactor, filter resistance are fixed respectively in the phase change cooling electric reactor directly above, the circuit breaker is fixed in the right upper part in the cabinet body, the lightning arrester is fixed in the right side of cabinet body, and brake resistance is fixed in the right side of cabinet body through the insulating structural member, the phase change cooling electric reactor, filter resistance all adopt phase change cooling heat dissipation, and the gas collecting pipe of phase change cooling electric reactor, the liquid return pipe of phase change cooling electric reactor, the gas collecting pipe of filter resistance, the liquid return pipe of filter resistance are fixed on the cabinet body. Advantage: can effectively insulate the high salt fog, high humidity air in tower drum or fan bin, improves the service life of electrical components and structural components in the cabinet.

The utility model discloses a compact high -voltage outgoing line cabinet relates to transformer manufacturing technical field, aims at solving the low space utilization of existing equipment, poor heat dissipation, insufficient reliability and other problems. It includes cabinet body, top cover and base, and the cabinet body is divided into upper, middle, lower layer space through mounting panel, and the lower layer is equipped with lower disconnecting switch, and the contact blade is inner circular arc shape, and is matched with the linkage plate and lock catch structure, reduces the space occupation and promotes the operation accuracy, and the top cover is split type, and forms efficient heat dissipation system with the base cavity, and can switch heat dissipation mode according to temperature, and the integrated control panel, observation window and operating lever are convenient for operation and maintenance. The utility model improves space utilization, power transmission efficiency and equipment stability through the modularization stratification, structural innovation and heat dissipation optimization, and reduces the cost.

This invention relates to a myocardial repair patch based on multi-material printing, its preparation, and its application, belonging to the field of bio-3D printing and regenerative medicine technology. The invention uses PLCL and GelMA hydrogel loaded with active cardiomyocytes as bio-inks, and introduces gelatin gel as a heat buffer material. An orthogonal network structure is constructed using multi-material bio-3D printing technology to prepare a myocardial repair patch with excellent dynamic adaptability to the myocardial interface and good biocompatibility. The myocardial injury repair patch prepared by this invention achieves a structure-function integrated design through the synergistic effect of the three materials, significantly overcoming the limitations of single materials in terms of mechanical properties, biological function, or thermal compatibility. The mechanical properties of the myocardial injury repair patch prepared by this invention can precisely match those of natural myocardium, while possessing high cell activity, effectively inhibiting fibrosis, improving myocardial function, and achieving true active repair. Furthermore, the process conditions are controllable, demonstrating good translational potential.

The application relates to the field of rubber for oil seals, and discloses a fluororubber with low friction and low temperature rise and a preparation method thereof, the fluororubber is made of the following raw materials in parts by weight: modified FKM 100 parts; nickel-coated graphite 0.5-5 parts; flaky graphite 0.5-5 parts; modified PTFE micro powder 1-10 parts; high-activity magnesium oxide 1-10 parts; calcium hydroxide 0-6 parts; WS2800 2 parts; Brazil palm wax 0-2 parts; glass fiber 0-5 parts; modified calcium silicate 0-50 parts; BPP 0.2-1 part; bisphenol AF 0.5-2 parts. The flaky graphite and the modified PTFE micro powder form a lubricating film at the interface to reduce friction, and the nickel-coated graphite is used to build a heat conduction channel to conduct heat out, so that the friction coefficient is reduced and the temperature rise is controlled. In combination with the modified matrix and the reinforcing filler, the stability of the crosslinking network is improved, the material has excellent high-temperature anti-aging performance and rigidity, and the service life of the oil seal is prolonged.

The utility model discloses an explosion-proof axial flow fan with a temperature rise control function, which comprises an air duct, a supporting seat fixed in the air duct, and a fan fixed on the supporting seat, a first cavity is arranged in the supporting seat, the first cavity is provided with an input port and an output port, and the output port is provided with a second cavity. A plurality of heat dissipation fins are evenly distributed on the supporting base with the circle point as the axis, each heat dissipation fin is provided with a second cavity and communicated with the first cavity, and a damping device is arranged at the connecting position of the supporting base and the air duct and used for reducing noise generated when the draught fan operates. Cooling liquid media are continuously conveyed into the first cavity and the second cavity through the input port, the temperature of the fan is reduced, meanwhile, the temperature of the output air volume of the fan is reduced, radial movement or shaking generated when the fan operates is reduced through the damping device, and the product has the advantages of controlling temperature rise and reducing noise.

A steam generating system for a cooking device includes an inner pot, a mounting hole is formed on a bottom plate of the inner pot, a water inlet hole is formed around the mounting hole, a heating plate and a water guide ring are installed in the mounting hole, the water guide ring is arranged below the heating plate, and the water guide ring has an annular water flow channel connected to the water inlet hole inside, and the water entering the inner pot from the water inlet can flow into the heating plate after passing through the annular water flow channel. The advantage of the present invention is that the steam generating system of the cooking device can increase the heat dissipation area of ​​the heating plate by arranging a hollow water guide ring below the heating plate, when the water flows into the inner pot, it will first flow into the annular water flow channel of the water guide ring, and then flow to the heating plate to generate steam, and the water that is not evaporated in time will flow into the water guide ring again at the same time, there is continuous convection heat exchange between the water guide ring and the water flow, so that the temperature rise at the bottom of the machine is effectively controlled, and the excess heat heats the flowing water, reducing energy dissipation and waste.

This utility model discloses a royal jelly filtration device, comprising: a double-walled shell with an opening at the top, forming a sealed cooling liquid chamber between the inner and outer walls, with a cooling liquid inlet and outlet at the top and bottom of the cooling liquid chamber respectively; a separating filter element rotatably disposed within the double-walled shell, including a suspended support tube and a multi-layer filter screen sleeved on the outer wall of the support tube, with multiple through holes in the support tube wall; and a royal jelly collection tank detachably disposed at the bottom of the double-walled shell and connected to the bottom of the shell. This utility model maintains the royal jelly at a low temperature through circulating cooling in the cooling liquid chamber, preventing damage to its nutrients. The multi-layer filter screen, combined with the rotating separating filter element, significantly improves filtration efficiency. This device is mainly used for high-efficiency low-temperature filtration of royal jelly and can be widely applied in the bee product processing industry.

The invention discloses a parameter confirmation method and device for a fault current limiting and circuit breaking protection system, terminal equipment and a computer readable storage medium, and the method comprises the steps: constructing a resistance type superconducting current limiter simulation model and a sulfur hexafluoride circuit breaker simulation model, and setting an initial strip length and an initial parallel resistance value; under the condition of the initial strip length and the initial parallel resistance value, fault simulation of preset maximum expected short-circuit current is carried out, and the maximum target unit resistance of room temperature resistance which does not exceed a preset proportion when the sulfur hexafluoride circuit breaker is opened is solved; determining a target strip length corresponding to the resistance type superconducting current limiter according to the maximum target unit resistance; and taking the target strip length as the final strip length of the resistance type superconducting current limiter in the fault current limiting and circuit breaking protection system. According to the invention, the damage risk of the resistance type superconducting current limiter can be reduced, and the material waste caused by the overlarge margin determined by human experience is avoided.