1003 results about "Electric cooling fan" patented technology

An electric fan includes: an electric motor that includes an output shaft extending along an axis line and a tubular housing centered on the axis line; an inner duct provided on a downstream side of the electric motor; a plurality of blades mounted on the output shaft; and a cooling member having a plurality of fins provided on an outer peripheral surface of the housing.

The utility model relates to the technical field of temperature control devices, in particular to a temperature control device for a lithium battery energy storage cabinet, which comprises a cabinet body, the inner wall of the cabinet body is fixedly connected with a containing frame, the inner wall of the containing frame is provided with a lithium battery pack, and the outer wall of the cabinet body is provided with a cabinet door. Through mutual cooperation of the motor, the threaded rod, the threaded sleeve and the circulating cooling mechanism, when the temperature of the cabinet body is too high, the motor is started to drive the threaded rod to rotate and drive the threaded sleeve on the outer wall to move up and down, so that an electric fan on the outer wall is driven to move up and down to cool a lithium battery pack, and meanwhile, a first water pump is started; the first water pump pumps cooling water into the cooling water pipe through the water pumping pipe, the cooling water pipe cools the containing frame where the lithium battery pack is placed, the second water pump is started to pump water back into the cooling water tank through the water return pipe to be cooled again, and the effect of controlling and reducing the temperature of the energy storage cabinet can be achieved through cooperation of air cooling and water cooling.

The invention relates to the technical field of heat dissipation, in particular to a piezoelectric fan which comprises an air blowing assembly and a control assembly, the air blowing assembly comprises fan blades and piezoelectric elements arranged on the fan blades, and the piezoelectric elements are attached to the fan blades and used for driving the fan blades to swing in a reciprocating mode; the one-way valve module is attached to the air blowing assembly and comprises a thin film valve which is opened in a one-way mode in the direction away from the air blowing assembly; a groove is formed in the face, facing the thin film valve, of each fan blade. The grooves are formed in the sides, facing the thin film valve, of the fan blades, on one hand, the amplitude of the fan blades is increased, and therefore the air volume is increased, and on the other hand, the air volume and the air pressure are improved; and through the arrangement of the thin film valve which is opened in the one-way direction away from the blowing assembly, backflow can be effectively restrained, compared with the prior art, the flowing direction of airflow can be effectively controlled, the air outlet amount can be increased, the overall airflow output amount is increased, and therefore the heat dissipation efficiency of the piezoelectric fan is improved.

The invention relates to the technical field of piezoelectric fans, in particular to a jet flow type miniature heat dissipation device which comprises an air inlet assembly and an air outlet assembly. The air inlet assembly comprises an air inlet plate, the air inlet plate is provided with fan blades and a vibration part attached to the fan blades and used for driving the fan blades to vibrate, and when the fan blades vibrate, external airflow is introduced and blown out in the direction away from the air inlet plate. The air outlet assembly comprises an air outlet layer attached to the air outlet side of the air inlet assembly and an air outlet plate attached to the air outlet layer. Wherein the air outlet layer is provided with a plurality of jet flow holes which are formed in the thickness direction in a penetrating mode, the air outlet plate is provided with air outlet channels corresponding to the jet flow holes, and the diameter d of the jet flow holes and the distance s between the jet flow holes meet the requirement that s / d is smaller than or equal to 5, so that airflow output from the jet flow holes is fused into a vortex ring in the air outlet channels and then discharged. The jet flow holes form a vortex ring structure and then are exhausted, the flow speed of gas is increased, the contact area of the gas and the gas outlet channel is increased, and the air outlet amount and the heat dissipation efficiency are improved.

The invention discloses an efficient heat dissipation system of a new energy automobile circuit board, and the system comprises a composite heat dissipation substrate which is formed by compounding a ceramic substrate layer, a graphene heat conduction layer and a copper alloy supporting layer through vacuum hot pressing, and the surface of the graphene heat conduction layer is provided with a micron-sized groove array; the dynamic heat dissipation assembly comprises a thermoelectric refrigeration module and a temperature sensor which are embedded in the composite heat dissipation substrate, the thermoelectric refrigeration module is linked with the temperature sensor through a PID controller, and active refrigeration based on temperature rise of the circuit board is achieved; the multi-layer heat dissipation channel comprises a micro-channel and a bionic fin structure, the micro-channel vertically penetrates through the composite heat dissipation substrate, the bionic fin structure covers the surface of the substrate, and the micro-channel is filled with a phase change material and is communicated with an external liquid cooling circulation system; the airflow adjusting module comprises a rotatable flow guide plate and a piezoelectric fan array, the flow guide plate dynamically adjusts the heat dissipation airflow direction according to the vehicle speed, and the frequency response range of piezoelectric fans is larger than or equal to 100 Hz.

The utility model relates to the technical field of glass production, and discloses a cooling device for glass production, which comprises a cooling box body, a glass uniform cooling movement assembly is arranged on the cooling box body, and the glass uniform cooling movement assembly is used for uniformly cooling glass. The glass uniform cooling movement assembly comprises a plurality of screw rods, a plurality of pin shafts, a plurality of small chain wheels and a convex shaft, when the two sets of circulating air control assemblies are driven to operate through the first chain, the two charging fans are oppositely arranged in a staggered mode, and the two charging fans can blow air around the glass plate containing frame in the cooling box body; the two charging fans can move up and down, so that air entering the cooling box body can continuously circulate in a gap between glass plates on the glass plate placing rack and forms a convection vortex, and the glass plates on the cooling box body can be uniformly cooled; and the condition that the glass plates at the corners of the glass plate placing rack cannot be uniformly cooled is avoided.

The invention provides an intelligent control method and system for the wind speed of an electric fan self-adaptive to the environment temperature, and relates to the technical field of intelligent household appliance control. The method comprises the steps that the average environment temperature is calculated based on a first temperature value, a second temperature value and a third temperature value, and meanwhile the wind speed correction value is combined; generating an initial wind speed gear parameter according to a preset temperature-wind speed mapping rule; superposing the wind speed correction value to the initial wind speed gear parameter to generate a final wind speed gear control parameter; converting the final wind speed gear control parameter into a motor rotating speed control instruction, and adjusting the rotating speed of an electric fan motor in real time; wherein the temperature-wind speed mapping rule meets the requirements that the wind speed gear is increased when the temperature is increased and the wind speed gear is reduced when the temperature is reduced. Through a closed-loop process of synchronous acquisition, real-time modeling and dynamic correction, temperature change is quickly converted into a motor rotating speed instruction, and intelligent control over the wind speed of the electric fan is achieved.

The utility model provides a pump body structure of a piezoelectric fan and the piezoelectric fan. The pump body structure of the piezoelectric fan comprises a piezoelectric vibrator, a pump body and a pump body, a vibrating diaphragm is arranged on one side of the piezoelectric vibrator; the vibrating membrane is provided with a first vent hole communicated with the interior of the piezoelectric vibrator; the piezoelectric vibrator is provided with a vibration node; a cavity; a first opening is formed in one side of the cavity; the side, close to the first vent hole, of the piezoelectric vibrator is located in the cavity, and the wall face of the first opening is connected with a vibration node through a flexible connecting piece so that the piezoelectric vibrator can be suspended in the first opening. A ventilation channel is formed in a space between the piezoelectric vibrator and the cavity; the cavity is provided with a second vent hole; the first ventilation hole, the ventilation channel, the second ventilation hole and the interior of the piezoelectric vibrator are communicated, and the second ventilation hole is formed below the vibrating membrane. According to the embodiment of the invention, vibration noise and airflow noise generated by the cavity due to vibration of the pump body of the piezoelectric fan can be reduced.

The invention relates to the technical field of electrical equipment temperature detection, and discloses an electrical equipment temperature measuring device for a power plant, which comprises a cabinet body, two sliding rods are fixedly connected to the two sides in the cabinet body, sliding sleeves are slidably connected to the outer sides of the multiple sliding rods, a fixing frame is fixedly connected to one side of each sliding sleeve, and the fixing frame is fixedly connected to the other side of the cabinet body. A threaded sleeve is fixedly connected between every two adjacent fixing frames, and a lead screw is arranged at the center position between every two sliding rods located on the same side. According to the invention, the occupation amount of the internal space of the cabinet body can be reduced, the utilization rate of the internal space of the cabinet body is greatly improved, and the circulation of air in the cabinet body can be accelerated, so that the interior of the cabinet body is rapidly cooled, the cooling effect of the interior of the cabinet body is improved, an electric fan can blow more electrical equipment, and the service life of the electrical equipment is prolonged. And more heat of the electrical equipment is blown out, so that the interior of the cabinet body is better cooled.

1. The name of the product of this design: Electric fan (hand-held sprayer). 2. Purpose of the product with this appearance design: The product with this appearance design is used as an electric fan. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention belongs to the technical field of piezoelectric fans, and relates to a piezoelectric fan device and a preparation method thereof. The device comprises a plurality of metal vibrating diaphragms and a plurality of stacked frame structures, a cavity is formed between the adjacent metal vibrating diaphragm and the frame structure; each metal vibrating diaphragm is provided with a plurality of metal substrates; each metal substrate is provided with a PZT film layer; the metal substrates are stacked, and one end of the frame structure is provided with an air port; the two adjacent metal vibrating diaphragms vibrate in opposite directions, and the air inlet state and the air outlet state of the adjacent cavities are opposite. Through the ingenious stacking design of the metal vibrating diaphragm and the frame structure, when the volumes of the cavities on the two sides are increased to suck air, the middle cavity is compressed and exhausts air, and the jet flow output efficiency is improved; each metal vibrating diaphragm adopts a metal substrate comprising a single-layer, double-layer or multi-layer PZT thin film, the multi-layer PZT thin film is used for driving the metal vibrating diaphragms to achieve the effect of improving the driving capacity, the jet flow output capacity is improved, and the air volume is greatly increased.

The utility model provides a pesticide spraying device for pest control in wheat cultivation, which belongs to the technical field of pest control in wheat cultivation and comprises a movable bottom plate, a plurality of universal wheels are mounted at the lower end of the movable bottom plate, a movable handle is fixedly connected to the upper end of the movable bottom plate, and the movable handle is fixedly connected to the lower end of the movable bottom plate. According to the spraying device, pesticide can be atomized through mutual cooperation of the spraying pipe, the electric fan and the atomizing nozzle, the atomized pesticide is blown off to the distance through strong wind of the electric fan, and therefore the purpose that spraying can be conducted on the central position of a wheat field without moving the whole spraying device into the wheat field is achieved; through mutual cooperation of the damping rotating shaft and the fixed mounting rod, the pitch angle of the spraying shell can be adjusted, the higher the pitch angle is, the farther the spraying distance is, and the lower the pitch angle is, the closer the spraying distance is, so that the spraying distance is adjusted, the overall structure is simple, and the manufacturing cost is low.

The utility model discloses a surface paint drying device for sports shoe production and processing, which belongs to the technical field of shoe production and drying, and comprises a workbench, a conveyor belt is rotatably arranged on the workbench, a drying box is arranged on the workbench, through grooves are arranged on both side walls of the drying box, a cover door is movably arranged on the outer side of the through groove, an object sensor and an air suction hood are arranged on the side wall of the drying box, the air suction hood is connected with the external filter box, an activated carbon filter layer and a gas filter membrane are arranged inside the filter box, a heating net is arranged above the air suction hood, a reciprocating screw rod is rotatably arranged above the heating net, and an electric fan is slidably arranged on the outer periphery of the reciprocating screw rod. The shoes are transported by the conveyor belt, and the drying box can be opened and closed quickly in conjunction with the movable cover door, the electric fan can move along the reciprocating screw rod, and the energy generated by the heating net can be diffused to every part of the drying box, so that the drying is more uniform, and the filter box cooperates with the air suction hood to absorb and filter the odor generated during the drying process in time.

The utility model relates to the technical field of constructional engineering, and discloses a multifunctional safety helmet for constructional engineering, which comprises a safety helmet body, the bottom of the safety helmet body is fixedly connected with a chin strap, a helmet lining is arranged in the safety helmet body, the front end of the safety helmet body is fixedly connected with a helmet brim, the safety helmet body is provided with a sleeve, and the sleeve is sleeved on the helmet body. An electric fan is fixedly connected into the sleeve, a filter screen assembly is arranged in the sleeve, a containing frame is arranged at the rear end of the safety helmet body, a battery electrically connected with the electric fan is arranged in the containing frame, a mounting base is arranged on one side of the safety helmet body, a rotating shaft is rotationally connected to the mounting base, and a clamp is fixedly connected to one end of the rotating shaft. Compared with the prior art, the safety helmet has the advantages that air exchange can be carried out in the safety helmet, so that the head is prevented from being stuffy, meanwhile, the irradiation angle of the electric lamp can be conveniently adjusted, and the safety helmet is convenient to use.

The utility model relates to the technical field of electric fans, and discloses a fan blade splicing structure which comprises a fan blade frame disc, first fan blades are distributed on the circumference of the upper end of the fan blade frame disc, the first fan blades are connected with the fan blade frame disc through screws, and second fan blades are movably connected to one sides of the first fan blades in an inserted mode. The long fan blade is divided into the first fan blade and the second fan blade, the insertion connection of the insertion connection block and the insertion connection groove and the cooperation of the clamping block and the clamping groove are adopted, packaging and transportation are conducted in a splicing mode, manual splicing installation is conducted on the hand of a user, the packaging and transportation cost can be effectively reduced, assembling is convenient and fast, and operation is easy.

The present invention relates to an elevator shaft drag reduction, pressure regulation and energy saving self-adjusting device and its adjustment method, comprising left / right drag reduction, pressure regulation and energy saving devices installed on both sides of the middle of the elevator shaft, the drag reduction, pressure regulation and energy saving device also comprising a displacement sensor, a controller, a speed monitoring device, a windshield, an adjustment plate and a power generation fan, the displacement sensor monitors the position of the car in real time and sends a displacement signal to the controller, the speed monitoring device monitors the wind speed in the shaft in real time and sends a wind speed signal to the controller, the controller sends a control signal to the left / right drag reduction, pressure regulation and energy saving device, and the left / right drag reduction, pressure regulation and energy saving device controls the inclination angle of the adjustment plate, the size of the ventilation area and the angle of the power generation fan. The elevator shaft drag reduction, pressure regulation and energy saving self-adjusting device and its adjustment method of the present invention can effectively reduce the aerodynamic resistance of the car, reduce the piston wind strength in the shaft, and increase the overall safety of the elevator.

The invention discloses a fan capable of supplying power to an LED lamp through wireless charging, and belongs to the field of power supply fans, the fan comprises a power supply assembly, the power supply assembly comprises an outer frame body, motor assembles are installed on the two sides of the interior of the outer frame body, a PCB assemblage is installed at the bottom end of the interior of the outer frame body, and a first coil PCB is connected to the side surface of each motor assemblage in a winding mode; a first magnetic ring is bonded to the upper end of the first coil PCB, a second magnetic ring is installed on the top of the outer frame body, and a second coil PCB is bonded to the upper end of the second magnetic ring. A motor assembly, a PCB assembly, a first coil PCB, a first magnetic ring, a second magnetic ring, a second coil PCB and a first corrosion coil in the power supply assembly are matched with a second corrosion coil, so that a magnetic field can be conveniently generated, wireless charging operation is conducted on LED lamp beads, and therefore the practicability of the fan can be remarkably improved; and meanwhile, through mutual cooperation of the structures, all parts of the whole fan can be protected conveniently, and therefore the service life of the fan can be prolonged.

The present invention relates to an electric fan with multiple mounting modes, including a fan head, a support frame, and a base. The base includes a clamping assembly and a suction cup assembly, the clamping assembly includes an upper clamping plate, a lower clamping plate, and an elastic component, and the upper clamping plate is elastically connected to the lower clamping plate through the elastic component. The suction cup assembly is fixed to a lower end of the upper clamping plate. The fan head is movably erected on the support frame, and the support frame is fixed to the upper clamping plate. The suction cup assembly and a force-returning binding band are designed between the upper clamping plate and the lower clamping plate. The fan is adsorbed onto a glass surface by using the suction cup assembly when clamped on a windshield of a golf cart.

The utility model discloses a mosquito-repelling electric fan which comprises a supporting seat, a fan device and a mosquito-repellent incense liquid heating device. The supporting seat is provided with an electric control device; the fan device comprises fan blades and a motor, the motor is arranged on the supporting base and connected with the electric control device, and the fan blades are installed on a rotating shaft of the motor. The mosquito-repellent incense liquid heating device comprises a shell and a heating piece, the shell is installed on the supporting base, a heating position is arranged in the shell, the shell is provided with a vent hole communicated with the heating position, the heating piece is arranged at the heating position and is in electric control connection with the electric control device, an installation position is arranged below the shell, the installation position is provided with a receding hole, and the receding hole extends to the heating position. The mounting position is used for mounting bottled electric mosquito-repellent incense liquid, and the avoiding hole is used for avoiding a liquid guide core of the electric mosquito-repellent incense liquid. According to the technical scheme, the mosquito-repelling electric fan can improve the mosquito-repelling effect.

The invention discloses a health management method for a GPU computing board card of an audio-frequency integrated signal processor, and belongs to the technical field of audio-frequency integrated signal processing. Multi-dimensional data of a GPU core, a video memory and a power supply module are collected in real time through a sensor, a three-dimensional temperature field is constructed by adopting an inverse distance weighted interpolation algorithm, and a thermal coupling area is accurately positioned; thermal field evolution is predicted based on an LSTM model, and a high-density instruction is dynamically scheduled to an NUMA core with sufficient heat dissipation allowance; aiming at sudden reading and writing of a video memory, a micro piezoelectric fan array is adopted to form vertical airflow (the wind speed is greater than or equal to 4m / s), and dynamic voltage reduction and graded heat dissipation strategies (phase change heat-conducting fins are pre-cooled to reduce the temperature by 8-10 DEG C, and the attack angle of centrifugal fan blades is 45 degrees) are combined. According to the scheme, the heat source recognition precision is improved by 40%, the heat dissipation delay is smaller than or equal to 45 microseconds, the calculation power loss is smaller than or equal to 0.8%, the video memory error rate is smaller than or equal to 1E-6, and high-density calculation heat management is remarkably optimized.

The invention discloses a new energy storage device and system, and relates to the technical field of energy storage equipment, the new energy storage device comprises a main body mechanism, the main body mechanism comprises a cabinet body, the inner wall of the cabinet body is fixedly provided with a placing plate, and the bottom of the cabinet body is provided with a cooling mechanism. By arranging a cooling unit, an auxiliary unit and a drying unit, air is driven by an electric fan to enter an inner cavity of a connecting pipe and exchanges heat with cooling liquid in a circulating pipe for air in an inner cavity of a cabinet body, the temperature in the cabinet body is reduced, the capacity of the bottom of a battery module is improved through cooling fins, and through cooperation with the cooling unit, the cooling effect is improved. The heat dissipation capacity of the battery module can be improved, so that it is guaranteed that the battery module works at the proper temperature, air entering the connecting pipe is dried through the drying agent, air in the cabinet body can be kept dry, the battery module is prevented from making contact with water in the air, and therefore normal work of the battery module is guaranteed.

To provide a portable electric fan with a predictable battery life. The solution includes a fan body, a circuit board assembly 1 and a storage battery 2 mounted within the housing of the fan body, a microprocessor and a current collector sealed within the circuit board assembly, and a load and display device 4 provided on the fan body, the display device including a function lighting display area and a battery run time display area. The display device indicates the currently activated operating mode of the fan body and the battery run time that the storage battery can provide for the corresponding operating mode, and displays the time in intuitive and standard time units, achieving a clear visual perception effect at a glance and providing users with accurate basis for deciding whether to use the portable fan and how to use it. Furthermore, the battery run time prediction method is accurate and adjustable, improving the user experience and practicality and effectively supporting the healthy and sustainable development of the portable fan industry.

1. The name of this design product: temperature difference power generation fan. 2. Purpose of the product of this design: a fan for blowing air. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The integrated air cooling heat dissipation structure based on the piezoelectric fan comprises a heat dissipation shell and a plurality of heat dissipation fins fixedly installed on the back face of the heat dissipation shell, the heat dissipation fins are distributed on the front face of the heat dissipation shell in a central symmetry mode, and installation supports are fixedly installed on the two sides of the bottom of the back face of the heat dissipation shell. A vibration reduction assembly is arranged on the surface of the mounting support, and a piezoelectric fan is connected to the top of the vibration reduction assembly in a clamped mode. According to the integrated air cooling heat dissipation structure based on the piezoelectric fan, through the arrangement of the piezoelectric fan device, the piezoelectric fan is driven to achieve air forced convection when the environment temperature is high, the upper limit of the heat dissipation capacity of the heat dissipation structure is greatly improved, the heat dissipation requirement of equipment is met, and through cooperation of the piezoelectric fan and the heat dissipation fins, the heat dissipation effect is good when the environment temperature is low. And when the piezoelectric fan device does not work, the piezoelectric fan device still has high natural heat dissipation capacity, the energy efficiency ratio of the system can be increased, and the service life of a driving component can be prolonged.

The invention discloses an enhanced immersion cooling heat dissipation method and device based on a piezoelectric fan. The method comprises the steps that a plurality of circuit boards are arranged in a heat dissipation box filled with a liquid cooling medium; and a piezoelectric fan is arranged in an area where the circuit board hinders the flowing of the liquid cooling medium. According to the invention, local enhanced heat dissipation can be carried out on the immersion cooling system, and a flowing dead zone in the immersion heat dissipation device is avoided, so that the heat dissipation efficiency of the system is greatly improved.

An electric fan comprises a fan body, and a controller and a main control board which are electrically connected with each other are arranged on the fan body. A key assembly electrically connected with the main control board is arranged on the controller; the key assembly comprises a switching key for regulating and controlling the real-time rotating speed, the real-time power and the real-time gear through long-press circulating switching, a lifting key for executing a numerical value lifting instruction and a lowering key for executing a numerical value lowering instruction; and the switching key, the lifting key and the lowering key are electrically connected with the main control board respectively. The switching key is an independent function key; or, the switching key is combined with other keys, and the switching key is triggered by long pressing. According to the electric fan, the real-time rotating speed, the real-time power, the real-time gears and the like can be circularly switched, so that the operation of the controller is more convenient, the display screen on the controller can display various parameters such as the real-time power, the real-time rotating speed, the real-time gears, the real-time temperature and numerical values, and the practicability is high.

The invention discloses an electric fan control method and device, an electric fan, a storage medium and a computer program product, and the method comprises the following steps: carrying out data fitting according to pre-stored sample data to obtain a relational expression among a comfort parameter, a human body temperature and an electric fan wind speed; the comfort parameters are used for evaluating whether the human body is in a comfortable state; the current human body temperature and the current wind speed of the electric fan are substituted into a relational expression between the comfort parameter and the human body temperature and the wind speed of the electric fan, and a current comfort parameter is obtained through calculation; and controlling the wind speed of the electric fan according to the current comfort parameter. According to the scheme, the comfort parameter is calculated by combining the human body temperature and the wind speed of the electric fan, the wind speed of the electric fan is controlled according to the comfort parameter, a user is always in a comfortable state, and use experience is improved.