263results about How to "Avoid temperature rise" patented technology

The invention is suitable for the technical field of solar cells, and provides a back contact solar cell, a cell assembly and a photovoltaic system, and the solar cell comprises a silicon substrate, the backlight surface of which is provided with a first region and a second region; the first passivation layer is arranged in the first region; the first doping layer is arranged on one surface, deviating from the silicon substrate, of the first passivation layer; the second passivation layer is arranged in the second region; the second doping layer is arranged on one surface, deviating from the silicon substrate, of the second passivation layer; at a preset position, an electric leakage contact layer is arranged in at least partial region between the first doping layer and the second doping layer, the electric leakage contact layer is connected with the first doping layer and the second doping layer, the thickness of the electric leakage contact layer is greater than that of the second passivation layer, and the ratio of the thickness of the electric leakage contact layer to the thickness of the second passivation layer is less than 4. According to the back contact solar cell, hot spot effect management and control can be achieved, normal power generation under a certain weak light condition is not affected, and hot spot effect management and control and power generation capacity of the back contact solar cell can be well balanced.

The invention discloses a fluid optimization method for a hydraulic torque converter, which comprises the following steps of: constructing a geometric model of the hydraulic torque converter, generating a hydraulic torque converter model, and further performing grid division on the hydraulic torque converter model; setting a preset fluid model, setting fluid attributes of the preset fluid model, and further setting a preset boundary condition and an initial flow field condition; calculating an internal flow field of the hydraulic torque converter by adopting a preset solving method, analyzing a flow field result and identifying an abnormal region with energy loss exceeding a preset range; carrying out preset structure optimization on the hydraulic torque converter, generating a hydraulic torque converter optimization model, carrying out fluid dynamic simulation, and verifying an optimization result; and circulating the optimization process until the optimization model of the hydraulic torque converter meets a preset optimization requirement. According to the fluid optimization method for the hydraulic torque converter, the distribution of the flow field in the hydraulic torque converter can be deeply researched through analogue simulation, an energy loss source is found out, and a targeted optimization scheme is put forward.

The invention relates to the technical field of comprehensive treatment of industrial solid wastes, and particularly discloses a comprehensive utilization method of secondary aluminum ash, which specifically comprises the following steps: deoxidizing the secondary aluminum ash; carrying out hydrolysis treatment on the deoxidized secondary aluminum ash, and carrying out solid-liquid separation to obtain mixed gas, a hydrolysis slurry solid phase and high-salt-alkali ammonia nitrogen hydrolysate; separating and purifying the mixed gas to obtain hydrogen; carrying out at least two times of acid washing treatment and at least one time of alkali washing treatment on the hydrolyzed slurry solid phase to obtain a solid phase product for the concrete admixture; and carrying out ammonia-nitrogen separation on the high-salt-alkali ammonia-nitrogen hydrolysate, and carrying out gradient acidification treatment to obtain aluminum hydroxide and inorganic salt crystals. By implementing the method, high-added-value overall utilization of the secondary aluminum ash can be realized.

A disclosed stirring and mixing device for composite material production comprises a stirring tank body, the outer wall of the top of the stirring tank body is provided with a sealing cover plate, the inner wall of the bottom of the stirring tank body is communicated with a discharging pipe, the bottom of the discharging pipe is fixedly provided with an electric control ball valve through a bolt, and the outer wall of the stirring tank body is sleeved with a cylindrical cooling shell; supporting legs distributed at equal intervals are welded to the outer wall of the bottom of the cylindrical cooling shell, the inner wall of one side of the cylindrical cooling shell communicates with a water inlet pipe, and the bottom of the inner wall of the other side of the cylindrical cooling shell communicates with a water drainage pipe. In the process of mixing and stirring silicon carbide, in order to reduce an interface reaction, a continuously flowing cooling medium is matched with mutual contact of a cylindrical cooling shell, a rotating sleeve and a stirring shaft, so that efficient cooling of the stirring shaft and the rotating sleeve can be realized, and temperature rise caused by heat generated by friction in the stirring process is inhibited; therefore, the interface reaction is inhibited.

The invention relates to the field of sealing, and provides a sealing structure which is applied to a rotating part, the rotating part comprises a rotor and a bearing box, a rotating shaft of the rotor is in running fit with a bearing in the bearing box, and the sealing structure comprises a first annular seal, a second annular seal, an isolation cavity and a sealing unit. The first annular seal and the rotating shaft are coaxially arranged, the first annular seal is located on the side, close to the rotor, of the bearing box, and the first annular seal is used for forming seal between the bearing box and the rotating shaft; the second annular seal and the rotating shaft are coaxially arranged, the second annular seal is located on the side, close to the rotor, of the first annular seal, and the second annular seal is used for forming seal between the bearing box and the rotating shaft; the isolation cavity is located between the first annular seal and the second annular seal and communicates with the atmosphere. The sealing unit is arranged between the isolation cavity and the first annular seal. According to the sealing structure, the sealing unit is additionally arranged in the bearing box, so that lubricating oil mist in the bearing box can be effectively prevented from entering the motor.

The invention relates to a two-phase cooling heat dissipation energy storage box and a refrigerant control method, the two-phase cooling heat dissipation energy storage box comprises a box body and a battery group, a liquid accumulation cavity is arranged at the bottom of the box body, and a refrigerant medium is contained in the liquid accumulation cavity; the battery group comprises a plurality of battery cells which are arranged in sequence, and a containing gap is formed between every two adjacent battery cells; a cooling layer and a gas channel are arranged in the accommodating gap; the capillary action of the cooling layer between the adjacent battery cells sucks the refrigerant medium, so that the refrigerant medium covers the surfaces of the battery cells, and the refrigerant part of the cooling layer is evaporated to absorb heat, thereby avoiding excessive temperature rise, effectively inhibiting heat spread after thermal runaway of the battery cells, and satisfying safe and reliable operation of the battery cells. The heat exchange efficiency of immersion liquid is improved, meanwhile, the liquid consumption is greatly reduced, and the manufacturing cost of the whole energy storage system is greatly reduced on the premise that the extreme heat dissipation performance of a semi-immersion cooling mode is kept.

The invention relates to the technical field of metal cutting, and discloses a multifunctional metal cutting machine which comprises a first bottom plate, a first shell is fixedly connected to the top of the first bottom plate, a first connecting plate is fixedly connected to the outer wall of the first shell, and the bottom of the first connecting plate is fixedly connected with the first bottom plate. The end, away from the first shell, of the first connecting plate is fixedly connected with a first connecting column, the bottom of the first connecting column is fixedly connected with the first bottom plate, the end, away from the first connecting plate, of the first connecting column is fixedly connected with a push rod, the inner wall of the first shell is fixedly connected with a first moving device, and the inner wall of the first moving device is movably connected with a cutting assembly. And by arranging the pushing assembly, under the limitation of the track, the sliding column III is pushed to move along with the fixing assembly, so that the distances of pushing out the raw material columns by the equipment every time are consistent, the condition of different lengths during cutting every time is avoided, and the cutting effect of the equipment is ensured.

The invention discloses a treatment process for removing impurities in neodymium-iron-boron oil sludge. The treatment process comprises the following steps: step 1, sieving the neodymium-iron-boron oil sludge, washing the neodymium-iron-boron oil sludge in an organic mixed solution, and removing liquid; 2, washing in a weakly acidic mixed aqueous solution, and removing liquid; 3, washing in an alkaline mixed aqueous solution, and removing liquid; 4, washing in water, and removing liquid; and 5, washing in an organic solvent, removing liquid, and drying to obtain purified neodymium iron boron oil sludge powder. According to the treatment process, the neodymium-iron-boron oil sludge is sequentially cleaned through the organic mixed solution, the weakly acidic mixed aqueous solution, the alkaline mixed aqueous solution, the water and the organic solvent, impurity elements such as Si, Mn and Ca and impurity particles in the neodymium-iron-boron oil sludge can be effectively removed, and the treatment process is suitable for the technical field of preparation of regenerated neodymium-iron-boron magnetic powder.

An electric vehicle battery cooling device effectively solves the problem that an existing cooling mode of an electric vehicle battery is poor in cooling effect. Comprising a battery bin with an upward opening, a battery is placed in the battery bin, a rectangular containing groove is formed in the lower side in the battery bin, an annular cooling groove is formed in the battery bin, a piston cylinder with a backward opening is arranged on the right side in the containing groove in the front-back axial direction, and a piston plate capable of moving front and back is coaxially arranged in the piston cylinder; bent cooling pipes are arranged at the left end and the right end of the front side of the piston cylinder respectively, a plurality of heat dissipation fins evenly distributed in the front-back direction are arranged on the cooling pipes, liquid suction pipes inserted into the cooling grooves are arranged at the left ends of the cooling pipes, and liquid outlet pipes inserted into the cooling grooves are arranged at the right ends of the cooling pipes; the device is simple in structure, novel in conception, convenient to use and high in practicability.

The invention discloses a UV ink curing degree detection device, and relates to the technical field of UV ink detection.The UV ink curing degree detection device comprises a chassis and a detection assembly, a detection box is arranged above the chassis, and the detection assembly is arranged on one side of the interior of the detection box; the detection assembly comprises downward pressing rods, a base, buffer springs, a bottom plate, a rubber roller, a light supplementing lamp, a bottom frame, a scraping plate, a feeding opening, a rolling shaft, a guide plate, a collecting frame, a baffle and a weight meter, one side of the detection box is symmetrically connected with the downward pressing rods, one ends of the downward pressing rods are connected with the base, and one side of the base is symmetrically connected with the buffer springs. During use, the curing degree of UV printing ink can be detected and distinguished, and the position of the UV lamp is adjusted according to a detection result, so that the irradiation light intensity is adjusted, an irradiation area is cooled while detection is carried out, the temperature is prevented from being too high, materials can be stably clamped during detection, and detection misalignment caused by material deviation is avoided.

The invention discloses a high-efficiency heat dissipation structure of a motor. The high-efficiency heat dissipation structure of the motor comprises a shell, an end cover, a stator winding, a stator core and a slot wedge, the casing, the end cover, the stator core and the slot wedge are mutually matched, sealed and clamped, the stator winding is arranged on the stator core, a central cooling path is arranged between the stator winding and the stator core to allow cooling fluid to circulate, and a plurality of tooth side paths are arranged on the stator core to allow the cooling fluid to circulate. The slot wedge is provided with a plurality of slot wedge paths for circulation of cooling fluid. According to the motor heat dissipation structure, the contact area between the cooling medium and the stator winding is further increased through a plurality of cooling paths of the tooth sides and the slot wedges arranged around the stator winding, and the heat dissipation capability of the motor is improved. Due to the shell, the end cover, the stator core and the slot wedge which are mutually clamped and sealed, the motor does not need to be sealed by installing an oil separation sleeve in an air gap like a traditional motor in the sealing process, the structure of the motor is simplified, and improvement of the performance of the motor is facilitated.

The utility model provides a battery pack. The battery pack comprises a battery box, the battery box is provided with a first mounting cavity and a pressure discharge channel, the pressure discharge channel is constructed to be capable of being communicated with the outside of the battery box, at least one side wall of the battery box is provided with a plurality of first air guide ports, and the plurality of first air guide ports are communicated with the pressure discharge channel; the battery module is mounted in the first mounting cavity, the battery module comprises a plurality of battery cells which are sequentially arranged, a battery cell explosion-proof valve is arranged on the side surface of each battery cell, and the plurality of first air guide ports and the plurality of battery cell explosion-proof valves are arranged in a one-to-one correspondence manner. The battery pack provided by the technical scheme of the utility model can effectively reduce the risk of heat diffusion.

The invention belongs to the technical field of asphalt production, and discloses granular asphalt screening equipment for petroleum asphalt production and a screening method.The equipment comprises a mounting cylinder, a screening cylinder, a supporting rod, a fixing ring, a scraper and a material guiding ring arranged in the mounting cylinder in a sleeved mode, and the screening cylinder is rotationally connected to the two ends of the material guiding ring; a plurality of annular grooves are formed in the inner wall of the screening cylinder, a plurality of screening holes used for screening granular asphalt are formed in the inner walls of the annular grooves, the supporting rod is arranged in the material guiding ring and the screening cylinder in a sleeved mode, and the fixing ring is arranged on the supporting rod in a sleeved mode and fixedly connected with the supporting rod. When the screening cylinder rotates, the scraper slides along the inner wall of the annular groove in the screening cylinder, and when sliding, the scraper can extrude asphalt particles blocked in the screening holes through the multiple screening holes, so that the asphalt particles are extruded out along the inclined plane on the scraper, and due to the design, the blocked asphalt particles can be quickly cleaned out; the deeper and deeper asphalt is avoided, and the cleaning efficiency and the cleaning effect are improved.

The utility model relates to the technical field of smoke exhaust devices, and discloses a smoke exhaust device for fire protection engineering, which solves the problem that the existing smoke exhaust device for fire protection engineering is poor in use effect, and comprises a smoke exhaust main pipeline, and a smoke dust filtering mechanism is fixedly arranged at one end of the smoke exhaust main pipeline; a smoke exhaust main fan is fixedly arranged at the end, away from the smoke exhaust main pipeline, of the smoke dust filtering mechanism, a plurality of branch smoke exhaust fans are fixedly arranged on the two sides of the smoke exhaust main pipeline, L-shaped smoke exhaust branch pipes are fixedly arranged at one ends of the branch smoke exhaust fans, and smoke suction hoods are fixedly arranged at the ends, away from the smoke exhaust main pipeline, of the L-shaped smoke exhaust branch pipes. The L-shaped smoke exhaust branch pipe is fixedly provided with a plurality of fire-fighting branch pipes, one end of each fire-fighting branch pipe is connected with a fire-fighting system water pipe, and a spraying mechanism is arranged at the top end in the L-shaped smoke exhaust branch pipe; by means of the smoke exhaust device, cooling and fire extinguishing of the smoke exhaust pipeline can be achieved, flames are prevented from being exhausted along the smoke exhaust pipeline, safety is improved, and meanwhile smoke dust in smoke can be filtered.

The invention discloses an indoor plant lighting and breeding device and a plasma lamp. The plasma lamp comprises a resonant cavity heat dissipation device, a light-emitting assembly, a radio frequency driving heat dissipation device, a direct-current power source and a heat isolation plate. According to the working temperature and the heat dissipation requirement of each component, a heat separation mode is adopted, and the resonant cavity device and the light-emitting assembly are arranged in an accommodating space; the radio frequency driving heat dissipation device and the direct-current power supply are arranged in the other accommodating space, and the resonant cavity heat dissipation device is connected with the radio frequency driving heat dissipation device through a wire; wherein the light-emitting assembly is arranged at the front end of the resonant cavity heat dissipation device, and the thermal isolation plate is arranged between the radio frequency driving heat dissipation device and the direct-current power supply; the plasma lamp further comprises a horizontal connecting plate, the two ends of the horizontal connecting plate are fixedly connected with the resonant cavity heat dissipation device and the radio frequency driving heat dissipation device respectively, and the problems that in the prior art, heat of all components in a plasma lamp is mutually crossed and transferred, the service life is affected, and the size of a large heat dissipation device is needed are solved.

The invention relates to the technical field of feed processing, and provides a farm self-made fermented feed production system which comprises a production platform, a smashing device is installed on one side of the production platform, the upper end of the smashing device is connected with a feeding device, and the feeding device is obliquely and fixedly installed on the production platform; a fermentation device is fixedly mounted in the middle of the production platform. Cereal forage is crushed through the crushing device, then the crushed cereal forage is put upwards into the fermentation device through the feeding device, the crushed cereal forage, raw materials of feed and fermentation bacteria liquid are subjected to sealed fermentation in the fermentation device, and full mixing and stirring are performed through the stirring mechanism in the sealing process. Raw materials are prevented from being burnt and deteriorated due to too high center temperature of the feed, constant and uniform temperature, low fermentation speed and insufficient fermentation of the feed in the fermentation device are effectively ensured, and a large batch of feed cannot be fermented at the same time and cannot be processed into feed with sufficient nutrition for feeding in a farm.

The invention discloses a mobile AC charging pile tester and a test method, the mobile AC charging pile tester comprises a box body, the bottom of the box body is provided with moving wheels through bolts, and the top of a power box is electrically connected with a test mechanism; the supporting seats are symmetrically arranged on the two sides of the upper end of the box body, a box cover is rotationally installed on the outer sides of the supporting seats, and the grab rail is connected with the box body through a limiting mechanism; and the cooling fan is installed on the inner wall of the box body, air inlet holes are reserved in the inner wall of the box body, and the connecting cavity is formed in the box body. According to the mobile alternating current charging pile tester and the testing method, mobile pushing is adopted, the tester can be conveniently and rapidly transferred when charging piles at different positions are tested, repeated switching and stooping for tester operation are not needed, a testing interface can be protected in rainy days, the interface is prevented from being affected by dust and rainwater, and the testing efficiency is improved. Meanwhile, heat generated by equipment can be dissipated in the testing process, and stable operation of the tester is guaranteed.

This utility model discloses a cream whipping device for cake processing, including a whipping bucket. The whipping bucket comprises an outer bucket with an opening at the top and an inner bucket. The inner bucket is detachably embedded in the outer bucket, and a cavity exists between the outer and inner buckets. The top of the inner bucket has a flange, and symmetrical insertion rods are arranged at the bottom of the flange. A connecting block is provided at the upper end of the outer bucket corresponding to the position of the insertion rods, and the connecting block has a slot for inserting the insertion rods. A retaining block is also elastically provided at the bottom of the insertion rods. This utility model, through the cavity formed by the gap between the outer and inner buckets, and with an inlet and outlet, allows for the introduction of cooling or heating media, thereby indirectly exchanging heat with the cream in the inner bucket. This effectively avoids temperature rise caused by changes in ambient temperature and heat generated by mechanical friction, ensuring that the cream is always within the optimal whipping temperature range.

The utility model discloses an egg laying box for breeding in the technical field of egg laying boxes, which comprises a closed egg laying box body, a top cover of the egg laying box body is provided with a skylight and a side window, and the outer side of each egg laying chamber is provided with an isolation door capable of being turned over inwards to be opened. The step plates can be separately clamped in the clamping grooves between any adjacent clamping tables, a temperature sensor is arranged in each egg laying chamber, the temperature can be detected in time, an independent egg laying chamber can be provided for each hen, the multiple egg laying chambers are integrated in one egg laying box body, a large number of egg laying chambers are effectively arranged in a small space, and the egg laying efficiency is improved. The ventilation openings are formed in the outer side and the top of the egg laying box body, air circulation of the egg laying chamber in the egg laying box body is facilitated, the interior of the egg laying chamber is effectively cooled, stress of hens caused by high temperature is avoided, the isolation door is additionally arranged, the hens cannot open the isolation door again after the isolation door is closed, laid eggs can be isolated, and tracing of family information of the eggs is facilitated.

The invention relates to an energy storage and saving device and method for a construction hoist, an intelligent terminal and a storage medium, and relates to the field of construction equipment. The device comprises a supporting frame, a driving mechanism, a lifting box body, energy conversion equipment and energy storage equipment; the energy storage device comprises a bidirectional DC / DC controller and an energy storage medium. The driving mechanism is installed on the supporting frame and used for driving the lifting box body to ascend and descend, and the supporting frame is used for providing a lifting path of the lifting box body; the energy conversion equipment is used for converting potential energy of the lifting box body into electric energy in the descending process of the lifting box body; the bidirectional DC / DC controller is used for controlling the charging and discharging states of the energy storage medium; the energy storage medium in the charging state is used for storing electric energy generated by the energy conversion equipment in the charging state; the energy storage medium in the discharging state is used for providing electric energy for the driving mechanism in the lifting process of the lifting box body. The construction hoist has the effects of reducing the energy consumption of the construction hoist and saving the power consumption cost.

The invention relates to the technical field of rocket engine high-altitude simulation tests, and discloses a diffuser thermal protection design method, which comprises the following steps: determining a gas supersonic flow and gas subsonic flow switching position in a diffuser; the interior of the diffuser is divided into a fuel gas supersonic speed section, a fuel gas subsonic speed straight barrel section and a fuel gas subsonic speed expansion section; a cooling liquid jacket is arranged around the diffuser; the cooling liquid jackets corresponding to the fuel gas supersonic velocity section, the fuel gas subsonic velocity straight barrel section and the fuel gas subsonic velocity expansion section are respectively an A-section cooling liquid jacket, a B-section cooling liquid jacket and a C-section cooling liquid jacket; the diameter of the outer wall of the A-section cooling liquid jacket is larger than that of the outer wall of the B-section cooling liquid jacket. The cooling liquid jackets with different thicknesses surround the fuel gas supersonic speed section and the fuel gas subsonic speed straight barrel section respectively, so that the flowing speed and the heat exchange coefficient of the cooling liquid are increased, heat is transmitted out more quickly, the temperature of the fuel gas subsonic speed straight barrel section is prevented from rising quickly, and then the diffuser obtains more reliable thermal protection.

The invention discloses a wheat breeding material storage device and relates to the technical field of warehousing, the wheat breeding material storage device comprises a storage tank, an annular support, an upper cover, a stirring assembly, a ventilation assembly and a cleaning assembly.According to the wheat breeding material storage device, the stirring assembly and the ventilation assembly can be operated by controlling forward rotation and reverse rotation of a driving shaft, the stirring assembly is used for stirring the wheat breeding materials in the storage tank, so that the situation that the temperature is too high due to accumulation of the wheat breeding materials is avoided, the ventilation assembly accelerates flowing of air in the storage tank, and the reciprocating lead screw can be driven to rotate regardless of forward rotation or reverse rotation of the driving shaft; and then the cleaning assembly is driven to scrape dust at the air inlet holes in the outer wall of the storage tank, and cleanliness of the air inlet holes is kept.

The utility model discloses a high-voltage isolating switch, which belongs to the technical field of switches, and comprises an electric pole, one side of the electric pole is connected with a box body, one side of the box body is provided with a ventilation assembly, and the upper part of the electric pole is connected with a bracket; the protective assembly is arranged, the protective cover is moved towards the switch body, the protective cover moves to drive the moving block to move, after the moving block is attached to the side wall of the moving opening, the rotating rod is held by hand to apply force to drive the sealing cylinder to rotate and move, and the sealing cylinder rotates and moves to drive the connecting block to rotate and move. When a sealing ring on a sealing cylinder is attached to the side wall of a support and rotation of a rotating rod is stopped, rainwater can be prevented from falling on a switch body under the action of a protective cover in rainy days, and meanwhile moisture in the protective cover can be absorbed under the action of absorbent cotton, so that the moisture in the switch body can be prevented from falling on the switch body, and the service life of the switch body is prolonged. And the switch body is prevented from being damaged by rainwater erosion.

In a thin film rotating type stirring device, a side surface of a cylindrical part is configured from a first region which is divided into a belt shape along the circumferential direction of the cylindrical part and in which a plurality of holes penetrating in the inside-outside direction are formed, and a second region which is divided into a belt shape along the circumferential direction of the cylindrical part and in which a plurality of holes penetrating in the inside-outside direction are formed. And a plurality of holes penetrating in the inside-outside direction are formed so as to have an aperture ratio smaller than that of the first region or so as to be non-porous. The first region is disposed in a portion including the center of the cylindrical portion in the height direction, and the second region is disposed at a position from the upper end of the first region to the upper end of the cylindrical portion and from the lower end of the first region to the lower end of the cylindrical portion. When the width of the first region is Wp and the total height of the rotating member is H, the relationship 0 < Wp < 0.5 H is satisfied.

The invention discloses an emergency cooling system and method for a reactor pressure vessel of an ocean nuclear power platform, and the system comprises a pressure vessel external cooling system which comprises a metal or alloy plate and an emergency cooling channel, the metal or alloy plate is arranged between the reactor pressure vessel and the pressure vessel supporting structure surrounding the reactor pressure vessel; the emergency cooling channel is arranged at the bottom of the pressure vessel lower sealing head. And the bottom cooling channel is of a double-layer bottom closed structure, is arranged below the pressure container, and comprises a double-layer bottom platform plate and a double-layer bottom coaming. And the water taking system is communicated with the bottom cooling channel through a pipeline. And the exhaust system is communicated with the bottom cooling channel through a pipeline. According to the invention, the inherent characteristic of low melting point of specific metal is utilized, lead absorbs heat and melts at the initial stage of an accident and coats the lower sealing head of the reactor pressure vessel, an emergency cooling channel is established, the heat of a reactor core is passively transmitted to seawater, and further deterioration of the accident is prevented.

This invention relates to a transverse induction heating device, wherein coils (230, 330) are respectively disposed on the surface side and the back side of a conveying predetermined surface (CP). The coils (230, 330) are configured with main magnetic cores (211, 311), edge magnetic cores (212, 213, 312, 313), and bridge magnetic cores (220a, 220b, 320a, 330b). The bridge magnetic cores (220a, 220b, 320a, 330b) are disposed on the back side of the main magnetic cores (211, 311) and the edge magnetic cores (212, 213, 312, 313). The main magnetic cores (211, 311) and the edge magnetic cores (212, 213, 312, 313) are magnetically coupled through the bridge magnetic cores (220a, 220b, 320a, 320b).

The present invention provides a wind turbine generator set. The wind turbine generator set includes a heat dissipation system arranged in a nacelle. The heat dissipation system includes: an air inlet, arranged on the side wall of the nacelle, for introducing outside air into the interior of the nacelle; an air outlet, arranged on the bottom wall of the nacelle; a first exhaust duct, one end of which is connected to the interior of the generator; a cooling fan, the inlet of the cooling fan is connected to the other end of the first exhaust duct; a second exhaust duct, one end of which is connected to the outlet of the cooling fan, and the other end of the second exhaust duct is connected to the air outlet. According to the wind turbine generator set of the present invention, the heat can be effectively dissipated, the length of the nacelle cover can be shortened, the weight of the nacelle can be reduced, the load and cost of the unit can be controlled, and the reliability of the unit can be ensured by adopting the side air inlet and bottom air outlet.

The invention particularly relates to a control method for preventing condensation of a refrigerator and the refrigerator. The anti-condensation control method for the refrigerator comprises the steps that the initial opening rate of a heater of a beam structure between two adjacent door bodies of the refrigerator is set to be 0 in the preset environment temperature T environment when the refrigerator is in the running state; the surface temperature T surface of the beam structure when the opening rate is 0 is obtained, and the difference value T surface-T dew point n between the T surface and the T dew point n is calculated; when the T surface-T dew point n is obtained, judging whether the T surface-T dew point n meets the condition that the T surface-T dew point n is greater than or equal to 0; and when T surface-T dew point n is greater than or equal to 0, obtaining the minimum value Tmin of the difference value of T surface-T dew point n, and setting the gear of the environment humidity corresponding to Tmin as the base point K of the opening rate of the heater in the T environment. The refrigerator has the advantages of being energy-saving, efficient, good in refrigerating and fresh-keeping effect, good in anti-condensation effect and tidy and clean in the refrigerator.

The utility model belongs to the technical field of new energy batteries, and particularly relates to a new energy automobile power battery cooling device which comprises a battery holder and a cooling assembly arranged in the battery holder. The cooling assembly comprises a plurality of groups of mounting grooves formed in the battery holder, a plurality of groups of transverse grooves formed in the battery holder and a plurality of groups of longitudinal grooves formed in the battery holder, battery mounting blocks are fixed in the mounting grooves, and a plurality of groups of cooling fins are fixed on the outer surfaces of the battery mounting blocks; the plurality of groups of cooling fins are arranged in an annular array, the mounting grooves are communicated with the transverse grooves, and the mounting grooves are communicated with the longitudinal grooves, so that the internal heat dissipation of the battery holder is uniform, the overall temperature is ensured, the local temperature is prevented from being too high, and the service life of the battery holder is prolonged. The communication groove is communicated with the battery mounting block, so that the outer wall of the battery mounting block is cooled, and the heat dissipation area can be increased by the heat dissipation fins.

According to the instant ruditapes philippinarum food and the processing method thereof, ruditapes philippinarum is used as a raw material, and vacuum rolling, TG enzyme-ultrasonic coupling treatment, vacuum impregnation and far infrared drying and dehydration technologies are combined in the main steps of raw material pretreatment, pre-dehydration, seasoning, drying and the like. The allergen of the clam meat instant product is effectively reduced, the elasticity of the clam meat instant product is increased, the taste of the clam meat is ensured, and the clam meat instant product has certain reference significance for development of instant shellfish products.