WO2012006882A1

WO2012006882A1 - Multifunctional super-silent fan

Info

Publication number: WO2012006882A1
Application number: PCT/CN2011/071556
Authority: WO
Inventors: 魏建峰
Original assignee: Wei Jianfeng
Priority date: 2010-07-12
Filing date: 2011-03-07
Publication date: 2012-01-19
Also published as: CN101865149A; CN101865149B

Abstract

A multifunctional super-silent fan includes a power source (0), a base (1), a supporting seat (2), a first air outlet part (3) and a second air outlet part (4), wherein an inner ring (32) and an outer ring (31) are provided on the first air outlet part (3). A n angle α which is formed between a plane formed between the inner ring (32) and the outer ring (31) and a plane where the fan is positioned is 65-80 degree. Multiple rows of air inlets (21, 22, 23) are arranged on a middle and lower part of the supporting seat (2) and the diameters of the air inlets (21, 22, 23) are sequentially increased from top to bottom. The diameters of the air inlets (21, 22, 23) satisfy a functional relationship D_n ₊₁=(1+cosα)D_n, wherein n is a natural number. The second air outlet part (4) is located in a middle part of the first air outlet part (3), and second air outlets (41, 42, 43) are provided in the second air outlet part (4). The diameters of the second air outlets (41, 42, 43) with an equal distance from the first air outlet part (3) are same and satisfy a functional relationship D_m+1=(1+cos²α)D_m, wherein D_m is the nearest diameter of the second air outlets (41, 42, 43) from the first air outlet part (3) and m is a natural number. The fan has the advantages that the inlet and outlet of the air are uniform, and the noise is reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan capable of generating an air flow and a control device thereof, and more particularly to a multi-function electronic remote control fan that is ultra-quiet and has no fan blades. Background technique

A fan is a cooling device that removes heat by circulating and flowing air. It is a traditional, environmentally friendly indoor appliance. The fan can be divided into three types according to the type of the air outlet. One is an axial flow fan that directly drives the air flow by a plurality of blades rotating around the axis by the motor. This fan is a conventional common electric fan. The form includes a fan with a ceiling fan and a table fan. The fan blades of the fan are exposed to the outside. In order to prevent the blade from falling off and injuring people, or to prevent external objects from contacting the fan blade, some protective sleeves are usually arranged around the blade. Or isolate the device, or lift the fan high and away from the crowd. This type of fan that directly disturbs the wind through the blades is usually driven by a common AC motor and uses a large blade-shaped blade, which generates a large noise. For example, Chinese patent application

200820002255. If a protective cover is placed outside the blade, it is more likely to generate noise and hinder the flow of the gas, reducing the flow of the wind. For example, Chinese Patent 200420066811, Chinese Patent 200620054116. Moreover, such a fan requires a relatively large fan blade to install the protective cover or the isolation device, so that the air in the room can flow, which also requires a relatively high-powered motor, which not only occupies a large indoor space, but also consumes A large amount of electric energy, because this fan is bulky and expensive to manufacture, it is neither economical nor economical. And these fans are prone to large noise in an indoor environment. And the air supply is uneven.

Another type of fan is a fan that generates wind through a centrifugal fan. The fan mainly uses a centrifugal air outlet structure, and the air outlet is realized by a centrifugal fan. For example, Chinese patent CN283669Y, CN2833186Y, etc., the fan is almost centrifugal. The deformation of the fan, but the rotating mechanism of the multi-drive wind of the fan is disposed in the casing, and does not hurt the blade due to the blade, and the blade of the fan is evenly arranged to have a small swing amplitude, thereby avoiding wear of the motor and other components. The operation is stable, the noise is relatively small, and the life is relatively large. However, the fan is centrifugal, and the internal structure is relatively complicated. When dust and other pollutants enter the fan, it is easy to adhere to the cleaning difficulty, which is not conducive to keeping clean. In the Chinese patent CN2740815Y, the outer casing design of such a fan allows the direction of the wind to be restrained, so that the range of the air supply angle is limited. Moreover, the fan is difficult to achieve a change in the angle of the air supply due to the arrangement of the components. In U.S. Patent No. 60/641,804, although there is a new change in the design of such a turbine, space is saved. However, the fan has a long air outlet and is restricted by the air inlet, resulting in uneven upper and lower winds. It is also impossible to clean easily. Moreover, these fans are prone to large noise and uneven air supply in an indoor environment.

Another type of fan, which is a fan that changes the airflow of the axial flow fan through the outer casing, is an improved fan using a conventional fan structure, and is usually of a type similar to a centrifugal fan, for example, Japanese Patent No. JP-A-56-167897A, The fan is basically the earlier one of the fans that uses the fan blades of the motor and the fan to be placed in the casing, which is a non-centrifugal air outlet device. For example, Chinese patent application 200810177844. 8 , 200910175867. X, 200810177843. 3 , US patent US5881685A, US20080247881A1, these fans use a brushless motor to drive the fan blades to generate wind, through a specific housing, internal structure and air outlet settings Out of the wind, the air outlet of the fan can provide a large angle of air supply. Although the fan is disposed inside the fan to ensure the safety of the fan, the fan has the air inlet only in the lower middle part of the base. The air inlet is small and uniform before and after. During the working process of the fan, the airflow convection formed by the air outlet forms different air pressure difference around the fan base, causing airflow. The flow is inconsistent and creates noise. The fan adopts a circular or elliptical air outlet, and although any proportional relationship can be set between the air outlet (nozzle) and the base, in practice, a certain proportional relationship tends to cause instability of the fan placement, and these The proportional relationship does not effectively send the wind to a greater distance. This kind of fan air outlet adopts the Coanda surface setting commonly used in fluidics, but the surface of the fan should be strictly combined with the wind flow system of the entire fan to produce good results, otherwise the wind will be produced. Uneven, and noisy and inefficient. And this fan is involved in the surface through the Coanda, which actually applies the Coanda effec also known as the Coanda effect). It is through the fluid (water flow or air flow) that there is a tendency to leave the original flow direction, and instead of the surface of the convex object, the flow velocity of the fluid will slow down when there is surface friction between the fluid and the surface of the object through which it flows. As long as the curvature of the surface of the object is not too large, according to the Bernoulli principle in fluid mechanics, the slowing of the flow rate causes the fluid to be adsorbed on the surface of the object. Therefore, the wind of the fan outlet using the Coanda effect is closely attached to the surface of the exit, but the wind is easily dispersed, and it is impossible to concentrate on one object to blow, the distance of the air supply is not long enough, and the noise is large, and the comprehensive effect Not ideal. These fans are mechanically controlled and not smart enough.

The invention combines the advantages of the three kinds of fans in the prior art, and designs a fan with simple structure, multiple functions, uniform air output, and long-distance conveying wind, large angle air outlet, and small fan size, super Silent, easy to clean fan.

The invention is a multifunctional electric fan. The fan of the present invention can be remotely controlled remotely.

It is also possible to have a hurricane in winter to meet the winter needs. This type of electric fan requires a heating device between the air outlet and the fan blade. Summary of the invention

It is an object of the present invention to provide an improved fan that overcomes the bulkiness and noise of the prior art fans. Large, low-angle, low-efficiency, single-function defects. The object of the present invention is to provide a compact, ultra-quiet, high-efficiency, multi-functional fan that can smoothly discharge air from the emission surface of the fan during use, and can also meet the need to adjust a little distance to the wind. Demand.

By placing the fan motor and the fan blade in the casing, the invention prevents the external object from touching the blade, prevents the object from being damaged by the blade, and surrounds the fan blade and the motor running noise, thereby reducing fan noise.

The way to achieve ultra-quiet, including or the use of centrifugal fans. Or a conventional fan method requires a specific blade blade and a brushless motor.

The way to achieve ultra-quietness includes, or adopting a specific air outlet, the air outlet includes an internal passage for receiving the airflow and a mouth for ejecting the airflow, and the air outlet extends around the axis to define an air outlet, the air outlet including the airflow guiding The surface, the air outlet is disposed on the surface of the guiding airflow, and has a guiding pattern on the surface, and the air outlet includes a guiding portion, a diffusing portion, a specific curved portion, and a quadratic function transition surface, and the like, and can form a low noise air outlet.

The way to achieve ultra-quietness includes, or adopting a specific air inlet at the air inlet, which can ensure the smooth entry of the wind and reduce the noise of the wind at the entrance.

A multi-functional ultra-quiet fan, the fan comprising a power source 0, a base 1, a support base 2, a first air outlet component 3, and a second air outlet component 4, wherein the first air outlet component 3 includes An acute angle α between the ring 32 and the outer ring 31, the inclined slope formed gradually between the inner ring 32 and the outer ring 31 and the plane of the fan is 65-80 degrees; the support base 2 The middle and lower portions are provided with a plurality of rows of air inlets 21, 22, 23, and the diameters of the holes 21, 22, 23 of the air inlet openings are sequentially increased from top to bottom, and satisfy the functional relationship D _n+1 = ( 1 + cos α D _n , where D _n is the diameter of the n-th row of holes arranged laterally on the support base 2, and D _n+1 is the top-down n+1th row of the top and bottom of the support base 2 Diameter, wherein n is a natural number; the second air outlet member 4 is located in a middle portion of the first air outlet member 3; The air outlets 4 have air outlets 41, 42 and 43. The air outlets on the second air outlet member 4 having the same distance from the first air outlet have the same size, and the air outlets on the second air outlet member are the same. The diameter of the tuyage satisfies the mathematical function relationship D _m+1 = ( 1+ cos ² a ) D _m , where Dm is the diameter of the hole closest to the first air outlet, and Dm+1 is the hole close to the first air outlet, the hole The diameter change is analogous, and m is a natural number; wherein the second air outlet member 4 has an electronic clock device in the middle.

The second air outlet component 4 is provided with a plurality of light emitting diodes 40, and the light emitting diodes 40 are evenly distributed and independently controlled by the electronic signal receiver 20.

The second air outlet component 4 is provided with an electronic clock 5, and the power source of the electronic clock 5 is an independent power source.

The second air outlet member 4 is a pentagonal star or a hexagonal star.

The electronic timepiece 5 is mounted in the center of the second air outlet member 4. DRAWINGS

1 is a side cross-sectional view of a portion of a prior art fan assembly.

2 is a front elevational view of an ultra-quiet fan in accordance with an embodiment of the present invention.

Figure 3 is a front elevational view of the ultra-quiet fan in the preferred embodiment of the present invention.

Fig. 4 is a diagram showing the relationship of the function of the hole in the support base of the present invention.

Figure 5 is a functional relationship diagram of the holes of the second air outlet member in the present invention.

Figure 6 is a noise diagram of the present invention. detailed description

1 is a prior art of the present invention. The fan in the prior art is mainly used to ensure the relationship between the width of the air outlet member, the width of the support member, and the height of the fan, in order to obtain the stability of the fan. Although, this kind of wind Although the fan can reduce the volume, in the case of ensuring a stable proportional relationship, the volume cannot be made smaller while ensuring a certain amount of airflow. The fan of the present invention can make the size of the electric fan smaller by improving the air intake member and/or the air outlet member. The prior art fan adopts a mechanical control device, which has complicated control methods, inaccurate control, inconvenience, and high power consumption. In the prior art, the fan has the disadvantage of large noise, and has a single function, which is not beautiful and practical.

The present invention is an ultra-quiet fan. Figure 2 shows a front view of the ultra-quiet fan. 2 is an embodiment of the present invention, the fan includes a base 1, a support base 2, a first air outlet component 3, a second air outlet port component 4, and the like. In a preferred embodiment, the base 1 is a cylindrical base body, and the base is larger than the support base, so that the base provided has a large support area and good stability. The upper surface of the base 1 is connected to the lower portion of the support base 2, and the support base 2 is supported and fixed by the base 1. The base 1 and the support base 2 have a common mechanical connection relationship. In order to ensure the sealing property of the connection relationship, it is preferred in the present invention to connect in the form of a threaded wire. It is common to rotate the support base 2 into the base 1. The outer portion of the lower portion of the outer periphery of the support base 2 is threaded, and the inside of the upper portion of the round table of the base 1 is threaded. The advantage of using a threaded connection is that it is sealed, and it can be sealed by glass glue after connection, and the sealing effect is good.

The support base 2 is a cylindrical cylindrical structure, and the motor and the fan blades and other connecting mechanisms can be placed inside. From the outside, the lower part of the support base 2 is provided with an electronic signal receiver 20 (also called electronic induction receiving). The device is configured to receive a signal from the remote controller to control the rotation speed of the motor in the support base 2. The rotation speed of the motor is the basis for ensuring the size of the air outlet of the fan. The higher the rotation speed, the larger the wind blown by the electric fan. The electronic signal receiver 20 can also receive signals that control the components within the support base 2 such that the first air outlet component 3 and the second air outlet component 4 rotate back and forth along the axis of the center of the fan. The electronic signal receiver 20 can also receive signals to control the light emitting diodes 40 on the second air outlet component. When the fan is running at night, the light-emitting diode 40 is used for guiding, aesthetic, practical, and the like in the present invention. The electronic signal receiver 20 can realize remote control of the fan, which facilitates precise control of the fan. Power supply 0 is lighting Use electricity.

The lower middle portion of the support base 2 includes an air inlet, and the air inlet holes form a row parallel to the base 1, and the holes of the air inlets of each column are different in size. The holes 21 of the first row of air inlets, the holes 22 of the second row of air inlets, the holes 23 of the third row of air inlets, and the holes 21, 22, 23 of the air inlets are different in size, and are distributed as holes 21, 22 of the air inlets. 23 is an approximately circular hole, and the holes are sequentially enlarged, that is, the hole of the air inlet 21 is smaller than the hole 22 of the air inlet, and the hole 22 of the air inlet is smaller than the hole 23 of the air inlet. This distribution allows for different wind speeds from the top to the bottom of the air inlet. This distribution hole ensures a reduction in the incoming air noise and also reduces the noise of the motor inside the fan through the hole. The hole of the air inlet is not limited to three lines in production, and can be set to more rows, but at the time of setting, the size of the hole of each column is still different, only in the same row, the size of the hole Are the same. That is to say, the sizes of the holes formed parallel to the base formed by the air inlet are the same. As shown in Figure 3.

In the embodiment of the present invention, the fan sets the angle at which the specific first air outlet member 3 is required to gradually extend outward from the outer ring 31 to the inner ring 32, and the angle perpendicular to the plane of the entire figure. When the air volume is used, a certain swirling airflow can be formed between the air inlet and the air inlet to reduce noise. The second air outlet part is arranged in a triangle and looks like an African lion. The appearance is not an object of the present invention, and it is intended to provide the second air outlet member 4, and the air outlet holes 41, 42, 43, 44 provided by the second air outlet member. The size of these holes gradually increases, and the arrangement of the holes in the second air outlet member also sets a specific functional relationship. The mathematical function relational expression used in the present invention is D _{m +1} = ( 1 + cos ² a ) D _m , where D _m is the diameter of the hole closest to the first air outlet member 3, and D _m+1 is the next closest The hole of the first air outlet member 3 has a diameter change similarly to that of the first air outlet member 3, and the hole having the same distance from the first air outlet member 3 has the same diameter. In Fig. 1, if 0 „ is the diameter of the hole 41, D _{m +1} is the diameter of the hole 42; if D _m is the diameter of the hole 42, D _m+1 is the diameter of the hole 43; if D _m is the hole 43 The diameter of D _{m +1} is the diameter of the hole 44. With the setting of this functional relationship, the noise of the fan can be ensured to be relatively small. Fig. 5 is a letter of the hole of the second air outlet part in the present invention. Number relationship diagram.

For example, in the present invention, the optimum blowing distance is set to 0.8-3 meters, and the inclined surface from the outer ring 31 to the inner ring 32 may be inclined from the plane of the fan in the figure according to the power of the fan motor (X, Y). The angle α of the acute angle of the angle formed by the plane of the shaft is set at 65-82 degrees. In the present invention, based on the experimental data, the angle of inclination of the inclined surface obtained is preferably 75 degrees. At this angle, the blown wind can satisfy the wind's feeling of flexibility. Below is a table of design parameters for the fan at a rated motor power.

If the power of the motor is adjusted, the other parameters should be changed accordingly. These changes can be realized by a person skilled in the art based on numerous tests. However, creative work is required to find the best value. The designer of the present invention has found a set of optimal data. That is, when the optimal blowing distance is a distance of 1.5-2 meters, the first air outlet member 3 is an acute angle which gradually extends outward from the outer ring 31 to the inner ring 32 at an angle which is inclined with the plane of the fan. The ct is 73. 5 degrees, and the air output is about 450 liters per second. People's feelings are the best. Therefore, it can be said that the motor of the same power sets different angles of the inclined surface, and the optimum sensing distance of the air is different. Therefore, in the case of adjusting the motor speed, depending on the size of the windshield, the different optimal wind distances are different for the fan to feel the wind.

In the present invention, the second air outlet member may be omitted. In this embodiment, the sound noise effect of the fan may not be as good as the embodiment with the second air outlet. However, the first air outlet member 3 that is required to be specified is outwardly When the angle between the inclined surface of the outer ring 31 and the inner ring 32 and the axis perpendicular to the plane of the whole figure is gradually extended, a certain swirling airflow can be formed with the air inlet to reduce noise. In the present invention, the angle α of the acute angle of the angle between the slope of the inclined portion from the outer ring 31 to the inner ring 32 and the plane of the fan in the figure is set at 70-88 degrees. Within the range, the change in the diameter D of the hole of the air inlet should conform to this functional relationship D ₂₂ = ( 1+cos a ) D ₂₁ , where D ₂₁ is the diameter of the hole 21 of the air inlet, and D ₂₂ is the air inlet. The diameter of the hole 22. Wherein, the general mathematical function relational expression is D _n+1 = ( 1+ cos a ) D _n , wherein _n in D _n is a top-down n-th row of holes arranged laterally on the support base 2. Each row of holes is parallel to the base 1, and the holes of the same row are the same size. In the setting of this functional relationship, the noise of the fan can be ensured to be relatively small.

Figure 4 is a graph showing the relationship of the function of the hole. Where the abscissa is, the ordinate is 0 „ ₊₁ .

In the use of the fan, consider the environment in which it is used. For example, if the fan is suitable for use in the office, it is usually constrained by space. The distance between the fan and the person is relatively small, usually within a distance of less than 2 meters. Therefore, the optimum blowing distance is usually preferably 1-2 meters. In one embodiment of the present invention, the optimum blowing distance is preferably 1.2 m, and the angle a from the outer ring 31 to the inner ring 32 is an acute angle of the angle between the inclined slope and the plane of the fan in the figure is set at 77 degrees. The hole of the first row of air inlets is set to 0.6 mm, and 5 rows of holes are provided, and the diameter of the 5th row of holes is close to the noise generated. The holes 21, 22, 23 of the air inlet in the present invention are sequentially enlarged, resulting in an optimum effect of reducing noise.

Different designs in the present invention result in different air intake or air intake effects. This effect is not only expressed in the amount of the incoming air, but more importantly, the amount of noise generated.

Another preferred embodiment of the invention employs a second air outlet component. The support seat 2 is connected to the first air outlet member 3, and the first air outlet member 3 is connected to the second air outlet member 4. The first air outlet member 3 is a ring shape that gradually extends outward. The front edge of the first air outlet member 3 is an outer ring 31, and the rear edge of the first air outlet member 3 is an inner ring 32. The inner diameter of 31 is larger than the inner diameter of inner ring 32, from outer ring 31 to inner ring 32 is a sloped inclined surface, and the angle of inclination is set according to the power of the fan, the optimum blowing distance, and the like. In order to ensure the sealing property of the connection relationship, it is preferable to connect in the form of a threaded wire in the present invention. The support base 2 is usually rotatably attached to the base 1. The outer portion of the lower portion of the outer periphery of the support base 2 is threaded, and the inner portion of the upper portion of the circular table of the base 1 is threaded. The advantage of using a threaded connection is that it is sealed, and it can be sealed by glass glue after connection, and the sealing effect is good. In a preferred embodiment, the base 1 is a truncated-type seat body having a small upper surface and a larger lower surface. In this way, the base has a large supporting area and good stability. The upper surface of the base 1 is connected to the lower portion of the support base 2, and the support base 2 is supported and fixed by the base 1. The base 1 and the support base 2 have a common mechanical connection relationship.

In the present invention, the second air outlet member 4 is provided as a pentagonal star, and the air outlet is provided at the corner end of the pentagonal star. As shown in the distribution form in Figure 1. In this shape, the air outlets are nearly symmetrically distributed in the space surrounded by the first air outlet members. If set to a hex star, it is completely symmetrically distributed. In the test, it is generally considered that in the case of the pentagonal star, in the case of the same air volume, the noise generated by the distributed hole is smaller than the distribution of the hexagonal star air outlet, and the overall noise of the fan is small.

In the present invention, in order to ensure that the wind is soft, people feel comfortable in a wider range and increase the effective radiation distance of the fan. Improvements and design of the air outlet of the fan are required. First employed in the present invention is the addition of the second air outlet member 4. In the present invention, in order to ensure that the motor is operated at a high power, the air outlet still blows a gentle wind, thereby improving the good feeling of the wind. By providing the air outlets 41, 42, 43 on the second air outlet member, the size of the air outlets can be uniform. The air outlets 41, 42, 43 may be in the shape of a bell mouth. However, in the preferred embodiment, the air outlets 41 to the air outlets 42 and the air outlets 43 are sequentially enlarged. In the arrangement of the air outlets, the noise is less than that of the air outlets. In the normal state, the air outlet is set to a round shape, and when it is set to a shape with a sharp corner, noise is likely to occur. The second air outlet can ensure the uniformity of the air volume as a whole, and the wind flows out in the circular range formed by the first air outlet component, and the air disturbance can be reduced. The phenomenon of flow.

In a preferred embodiment of the invention, the arrangement of the apertures in the second air outlet member is also set to a particular functional relationship. The mathematical function relational expression used in the present invention is D _m+1 = ( 1 + cos ² a ) D _m , where 0 „ is the diameter of the hole closest to the first air outlet member 3, and D _m+1 is the next closest The hole of the first air outlet member 3 has a diameter change similarly to that of the first air outlet member 3. In Fig. 1, if D _m is the diameter of the hole 41, D _{m +1} It is the diameter of the hole 42; if D _m is the diameter of the hole 42, D _{m +1} is the diameter of the hole 43. With this functional relationship setting, it is possible to ensure that the noise of the fan is relatively small. Fig. 5 is the second in the present invention. A function diagram of the holes of the air outlet component.

Figure 6 is a diagram showing the relationship between the angles of the acute angles from the outer ring 31 to the inner ring 32 which are inclined from the outer ring 31 to the plane of the fan in the preferred embodiment. The hole in the air outlet, the noise map produced. Among them, the lower curve shows the graph where the abscissa axis represents the angle a and the ordinate represents the noise level (decibel). The upper curve is the noise curve of the fan with a different number and different arrangement at a certain angle a.

When the best blowing distance is 1. 5-2 meters, at 450 liters per second, people feel the best. Therefore, it can be said that the motor of the same power has different optimum sensing distances for setting the different inclined surface angles. Therefore, in the case of adjusting the rotational speed of the motor, in the case of the size of the wind power, the feeling of the wind out of the fan is different for different distances.

The fan of the present invention is particularly suitable for use in offices because of its low noise and small construction. Therefore, in the present invention, the electronic timepiece 5 is also provided in the middle portion of the pentagram. The power supply of the electronic clock 5 is independent, or it can be powered by a power cord that is connected through a duct. This is preferably in the form of a power cord in the present invention, and this design is only easy to implement. This design is not only beautiful in appearance, but also very practical.

The fan of the present invention is particularly suitable for use in a home because of low noise and small structure. Therefore, in the present invention, the electron light emitting diode 40 is also provided. LEDs 40 are distributed at each end of the pentagram and connected The intersection, as shown in the figure. The power supply of the light-emitting diode 40 and the power supply of the fan motor are the same power source. The arrangement of the light-emitting diode 40 in the present invention can be adjusted according to the amount of airflow. The light-emitting diode 40 is particularly suitable for use at night, not only for aesthetics, but also for weak illumination at night. The light emitting diode 40 is separately regulated by the inductor 20. Even if the motor of the fan does not operate, that is, in the case where the fan does not operate, the light-emitting diode 40 can also emit light alone, which is equivalent to a night light at night, which is very convenient.

According to the fan of the present invention, if a heating device is installed between the air outlet and the blade, a hurricane can be generated to meet the winter demand. Any improvement in the basis of the present invention is as long as the fan or other air outlet system employing the structural design of the present invention incorporating the inlet and outlet systems of the present invention is within the scope of the present invention.

The ultra-quiet multi-function fan of the present invention has a simple and practical structure, and those skilled in the art can modify the structure according to different requirements, and it can be achieved without the creative labor.

Claims

, a multifunctional ultra-quiet fan, the fan includes a power supply (0), a base (1), a support base (2), a first air outlet component (3), and a second air outlet component (4), characterized by: , the first air outlet component (3) includes an inner ring (32) and an outer ring (31), and an inclined slope gradually formed between the inner ring (32) and the outer ring (31) is in contact with the position of the fan. The acute angle α formed by the plane is 65-80 degrees; the middle and lower parts of the support base (2) are provided with multiple rows of air inlets (21, 22, 23), and the holes of the air inlets (21, 22 , 23) The diameter increases sequentially from top to bottom, and satisfies the functional relationship D _n+1 = (1+cosa) D _n , where D _n is the diameter of the nth row of holes arranged laterally on the support base (2) diameter, D _n+1 is the support

(2) The diameter of the n+1th row of holes from top to bottom arranged laterally in the middle and lower part, where n is a natural number; the second air outlet component (4) is located in the middle of the first air outlet component (3) ; The second air outlet component (4) is provided with air outlets (41, 42, 43), and the air outlets on the second air outlet component (4) that are at the same distance from the first air outlet are the same size, The diameter of the air outlet on the second air outlet component satisfies the mathematical functional relationship D _m+1 = (1+ cos ² a ) D _m , where Dm is the diameter of the hole closest to the first air outlet, D _m+1 This is the hole that is close to the first air outlet, and the diameter of the hole changes by analogy, m is a natural number; wherein the second air outlet component (4) has an electronic clock device in the middle.

. The fan according to claim 2, wherein the base (1) is in the shape of a truncated cone. . The fan according to claim 2, wherein the support base (2) and the base (1) are threadedly connected, and an electronic signal for receiving remote control signals is installed below the air inlet of the support base (2). receiver(20).

. The fan according to claim 3, wherein the second air outlet component (4) is provided with a plurality of light-emitting diodes (40), the light-emitting diodes (40) are evenly distributed, and are received by the electronic signal The device (20) is independently controlled.

. The fan according to claim 3, wherein the power supply of the electronic clock (5) is an independent power supply. source.

. The fan according to claim 4 or 5, wherein the second air outlet component (4) is in the shape of a five-pointed star or a six-pointed star.

. The fan according to claim 5, wherein the electronic clock (5) is installed in the center of the second air outlet component (4).