718 results about "Electric cooling fan" patented technology

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 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 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 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 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.

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.

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 multifunctional outdoor fan comprises a fan base, a fan support and a fan head, the fan head is provided with a rotating shaft, fan blades installed on the rotating shaft and a fan grating installed outside the fan blades, a water tank body is installed on the fan grating, the water tank body is provided with a water injection opening, and the water injection opening is connected with a water tank cover; an atomization assembly is arranged on the rotating shaft and communicated with the water tank body through a water pipe, the water tank body supplies water to the atomization assembly through the water pipe, and the atomization assembly is provided with an atomization opening. The fan base is provided with a head shaking motor, a PCB (printed circuit board), sound equipment, a battery, an audio playing assembly, a power input socket and a power output socket, and the battery is electrically connected with the head shaking motor, the sound equipment, the PCB, the audio playing assembly, the power input socket and the power output socket. According to the electric fan, shaking can be achieved, cold air can be blown in all directions, and the air humidifying effect is achieved.

This invention proposes a piezoelectric fan, comprising: a blade assembly connected to a heat source, the blade assembly including a liquid-cooled heat dissipation module formed in a stacked structure, the blade assembly having a fixed region and a swinging region, the fixed region being fixed and the swinging region being suspended and capable of reciprocating swinging; and a piezoelectric actuation unit connected to the blade assembly, the piezoelectric actuation unit providing power for the swinging of the swinging region. According to the piezoelectric fan of this invention, the heat from the heat source can be quickly and evenly distributed onto the blade assembly. Simultaneously, the piezoelectric actuation unit vibrates under external periodic electrical signal excitation, driving the swinging region to reciprocate, thereby improving heat dissipation efficiency. Furthermore, the structure is more compact, occupies less space, and can adapt to the heat dissipation needs of confined spaces, thus solving the problems of large system size, low integration, complex structure, high manufacturing difficulty, and high cost in existing technologies.

The utility model discloses power distribution switch control equipment with a heat dissipation device, which comprises a cabinet body, two square openings are formed in the top of the cabinet body, clamping grooves are formed in the inner walls of the two sides of the two square openings, slots are formed in the inner walls of the two sides of the multiple clamping grooves, clamping blocks are slidably connected in the multiple clamping grooves, and the clamping blocks are connected with the heat dissipation device. Two sliding grooves are formed in the bottoms of the clamping blocks, receding holes are formed in the inner walls of one sides of the multiple sliding grooves, sliding plates are slidably connected into the multiple sliding grooves, inserting rods are fixedly connected to one ends of the sliding plates, one ends of the inserting rods penetrate through the receding holes to be inserted into the inserting grooves, and a square frame is fixedly connected between the two clamping blocks. Electric fans are fixedly connected in the two square frames, and a plurality of heat dissipation holes are formed in the two sides of the cabinet body. The detachable electric fan can be taken out of the device to be cleaned, and a large amount of dust can be prevented from entering the cabinet body to damage electronic elements in the cabinet body.

1. Name of the product in this design: Solar charging fan head. 2. Purpose of this design: For use in the head of a solar-powered charging fan. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a multifunctional multi-head electric fan which comprises a vertical supporting machine body (1), a plurality of fan head installation holes (a) which are arranged in a left-right staggered mode are formed in the vertical supporting machine body (1), a fan head (2) is installed at each fan head installation hole (a), and the upper end and the lower end of each fan head (2) are respectively provided with a left-right swing head assembly (3). The left-right swing head assembly (3) is rotationally connected with the corresponding inner side face of the fan head installation hole (a) and used for controlling left-right swing of the fan head (2). The two or more fan heads are arranged on the vertical supporting machine body, meanwhile, the left-right swing head assembly is installed on each fan head, the angles of the left-right swing head assembly of each fan head are controlled respectively, control over multiple air outlet directions is achieved, a user can experience incoming air in the multiple air outlet directions, the stereoscopic impression is high, and the user experience is improved. And the blowing range is larger.

The present invention relates to an electric fan providing an air-blowing function and, more specifically, to a waterproof fan which: has a waterproof structure applied to electrical components in a configuration where blades are rotated using electric power to generate airflow, thereby enabling simple cleaning with water without the need to disassemble the fan for contamination removal during use; is equipped with a rechargeable battery to enable wireless operation of the fan or to perform cleaning with water while rotating the blades, thereby maximizing cleaning effectiveness; and has an anti-static material applied thereto, so as to minimize contamination. To this end, the waterproof fan according to an embodiment of the present invention comprises a waterproof head unit for providing an air-blowing function, a stand provided below the waterproof head unit to support same, and a waterproof control unit connected to the waterproof head unit to control the operation thereof.

Novel ships A, B, C1 and C2 are provided. A, propeller propelling systems 3, 4 and 5 are arranged below waterlines on the two sides of a prow; b, arranging ice surface sliding plates on two sides of the ship body, and arranging a high-power electric fan above the waterline of the stern; c1, front, middle and rear sliding plates are arranged on the two sides of the ship body, and a plurality of sets of 50-meter trailer locking sliding plates are arranged on the high-speed rail. And C2, front, middle and rear sections of sliding plates are arranged on two sides of the ship body, a plurality of groups of electric high-speed rail wheels are arranged below the sliding plates, and the track gauge of each group of electric high-speed rail is 1.435 m. The method is comprehensively discussed in the specification of the specific development implementation scheme in the theoretical and technical fields.

The utility model relates to a floor pipe and a floor electric fan. The standing pipe is applied to the floor electric fan and comprises a standing pipe body, a connector connected with the head of the fan is arranged at the top end of the standing pipe body, and the head of the fan can rotate in a pitching mode relative to the connector. The stand pipe body and the connector are integrally formed. According to the vertical pipe provided by the utility model, the joint connected with the head part of the fan is integrally arranged at the top end of the vertical pipe body (namely, the top end of the vertical pipe body and the joint are integrally formed), so that only one set of die needs to be developed for the vertical pipe, and another set of head part joint die does not need to be opened, thereby reducing the die development; the production cost of the floor electric fan is reduced; meanwhile, the assembling steps of the floor electric fan are reduced, and then the manual assembling cost of the floor electric fan is reduced.

This product is a portable electric fan with a slide switch for adjusting the airflow volume. The slide switch can be slid between the position shown in Reference Perspective Figure 1 and the position shown in Reference Perspective Figure 2. As shown in the front view, a vertically long selector switch for switching the airflow on and off is located below the slide switch. As shown in the bottom view, an electrical connection part for receiving electricity from an external source is located.

The utility model discloses a fan blade fixing structure and discloses a fan with the fan blade fixing structure, the fan blade fixing structure is characterized in that a plurality of mounting parts which are sequentially distributed in the circumferential direction extend from a hub, and each mounting part is provided with a clamping head and a limiting rib; inserting cavities are formed in the ends of the blades, bayonets and limiting grooves are formed in the side walls of the inserting cavities, the mounting parts can be inserted into the inserting cavities in a one-to-one matching mode, the clamping heads can be clamped into the bayonets so as to limit the blades to be separated from the mounting parts in the radial direction of the hub, and the limiting ribs are inserted into the limiting grooves so as to limit the blades to deviate in the circumferential direction of the hub; the whole structure is simple, installation is convenient, different blades can be adapted, the blades and the hub can be rapidly positioned and fixed in the radial direction through cooperation of the clamping heads and the clamping openings, and the blades and the hub can be rapidly positioned and fixed in the circumferential direction through cooperation of the limiting grooves and the limiting ribs.

The utility model discloses a portable electric fan. A fan wheel and a wheel-shaped mounting seat are arranged in a first cylindrical shell, a front cover is arranged at a front port, and a rear cover is arranged at a rear port. A rotor magnet is arranged in a first barrel-shaped hub part of a fan wheel, and a motor rotating shaft is arranged in the center of a barrel bottom. The wheel-shaped mounting seat comprises a cylindrical contour part, a second cylindrical hub part and a plurality of first plate-shaped spokes. And a tubular mounting seat is arranged at the center of the barrel bottom of the second barrel-shaped hub part. A motor rotating shaft is assembled in the tubular mounting seat, and a stator coil is sleeved outside the tubular mounting seat. The front cover is embedded into the front end of the cylindrical contour part and comprises a front cover hub part and a plurality of second plate-shaped spokes. The first plate-shaped spokes and the second plate-shaped spokes form a plurality of flow guide plates in a one-to-one correspondence mode, and air outlet airflow can be concentrated.

The utility model relates to the technical field of electric fans, in particular to an intelligent fan with a movable base, which comprises a base main body, a support column is fixedly mounted at the top of the base main body, a movable mechanism is arranged on the surface of the base main body, and an electric push rod is fixedly mounted at the bottom of an inner cavity of the support column. A lifting column is fixedly mounted at the output end of the electric push rod, the top of the lifting column penetrates to the outer side of the supporting column and is provided with a mounting mechanism, a fan body is arranged at the top of the mounting mechanism, and a signal transceiver is fixedly mounted on the rear side of the supporting column. The supporting area of equipment can be adjusted, a user pulls an extension plate and an extension rod firstly, so that a second supporting block and a first supporting block can move towards the outer side, the supporting area of the equipment is increased, meanwhile, the user can replace fans with different powers through an installation cylinder and a fixed insertion plate, and the use is convenient. Therefore, the equipment can meet different use requirements.

An energy-saving motor and an electric fan relate to the field of energy-saving motors and comprise a motor shaft, a cooling fan and a blade cleaning device, the cooling fan is provided with fan blades, a rotating shaft lever and a blade seat, a plurality of mounting holes are arranged in the blade seat, limiting grooves and blade reset torsion springs are arranged in the blade mounting holes, and the rotating shaft lever is sleeved with the blade reset torsion springs. According to the energy-saving motor, the angle of the fan blades can be adjusted according to the rotating speed of the motor shaft, the dust on the fan blades can be cleaned in time, the rotating speed of the motor shaft can be adjusted, the rotating speed of the motor shaft can be adjusted, the rotating speed of the motor shaft can be adjusted, and the rotating speed of the motor shaft can be adjusted. The heat dissipation requirement of the motor can be met, the power consumption of the motor can be reduced, and the energy-saving effect of the motor is greatly improved.

1. The name of the design product: hand-held foldable electric fan. 2. The use of the design product: the product design is used for blowing and cooling. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model discloses a kind of wear-resistant hose and its extruding mechanism, it is related to extruder field, to solve the problem of uneven melting caused by the agglomerated raw material into extruder, resulting in hose appears inclusion, air hole, surface is not smooth and other defects, its technical scheme main point is: including: extrusion shell, the side of extrusion shell top is fixed with feed hopper.The utility model is driven cam rotation by servo motor, to make screening net shake and screen raw material, agglomerated raw material will not pass through screening net and enter drying shell due to volume problem, electric fan draws external air into drying shell, air is heated by electric heating wire and blows in drying shell, agglomerated raw material is dried, while electric fan is driven to rotate by connecting rod and mounting rod and drives to scatter paddle and scatter agglomerated raw material, accelerate raw material drying and scatter efficiency, dispersed raw material is returned to feed hopper by return pipe, avoid agglomerated raw material into extruding mechanism to cause uneven melting and make hose appear inclusion, air hole, surface is not smooth and other defects.

The invention relates to the technical field of intelligent control, in particular to an electric fan wind direction dynamic adjusting method and an electric fan. The method comprises the steps that environment sensing data and human body position information are obtained, the data are input into a preset deep learning model, and wind direction adjusting characteristics including human body thermal comfort demand characteristics and airflow coverage deviation characteristics are generated; determining a fan head-swinging angle adjusting parameter and a head-swinging speed compensation coefficient according to the wind direction adjusting characteristics; and dynamically adjusting the head swinging angle and the head swinging speed of the fan based on the head swinging angle adjusting parameter, the head swinging speed compensation coefficient and the current rotating speed signal of the fan so as to realize self-adaptive adjustment of the wind direction. According to the method, environment perception and human body position information are fused, a deep learning model is combined, user requirements are accurately recognized, and a fan head swinging strategy is dynamically optimized, so that the problem that the air supply range is not matched with the human body requirements due to a traditional fan fixed head swinging mode is solved, and the air supply efficiency and the user experience are remarkably improved.

The invention provides a temperature control device and method for AR glasses and the AR glasses, and the device comprises a temperature control module, a temperature detection module, a controller and a wearing detection module, and achieves the intelligent regulation and control of the face environment temperature in the wearing process of the AR glasses. The temperature control module is integrated with the piezoelectric fan and arranged on the inner side of the connecting position of the glasses legs and the lenses, a rhombic blowing area covering the whole face can be formed by matching with the air outlet in the specific direction, circulation of air around the face is effectively accelerated, and the sensible temperature is reduced. The wearing detection module can accurately recognize the wearing state of the user, and invalid operation of the device in a non-wearing state is avoided; the temperature detection module collects the face environment temperature in real time, and the controller matches the temperature control grade and controls the temperature control module to start and stop and adjust the air volume according to the comparison result of temperature data and a preset threshold value. The whole device is simple in structure and reasonable in design, the original appearance and wearing comfort of the AR glasses are not affected, the face environment temperature can be accurately adjusted, and the use experience of a user is remarkably improved.