TWM550342U - Cooling fan structure of self-rotating cylindrical blade - Google Patents

Description

Cooling fan structure of self-rotating cylindrical fan blade

This creation is about the fan field, especially the cooling fan structure of a self-rotating cylindrical fan blade.

Generally, the fan blades of the fan have a difference in speed caused by the airflow passing through the designed airflow angle so that the airflow flows on the lower surface of the airfoil due to the difference in surface distance length. Because the airflow on the upper wing surface is faster, the corresponding gas pressure is smaller, and the airflow velocity is slower on the lower wing surface, so the corresponding surrounding gas pressure is larger, and the pressure difference of different sizes makes the lower airfoil The pressure pushes the pressure on the upper airfoil and thus generates lift. The reaction force of the lift forms the airflow thrust, and the airflow turns through the airfoil to produce a work effect, thereby exhibiting fan characteristics. However, the traditional dynamic and static leaf structure, or the single-moving blade with the rib structure outer frame, due to the interaction of the blade-wing structure, the noise and narrow-band noise on the noise are generally large. Furthermore, the conventional fan structure causes the airflow to flow out in a divergent manner due to the influence of the blade wing shape, so that the heat-dissipating element directly behind the fan in the system is insufficient in heat dissipation. Therefore, how to solve the above problems and deficiencies, that is, the creators of the case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

The purpose of the present invention is to provide a rotating fan that can rotate each rotating cylinder on the rotating body when the rotating body rotates, so that the rotating cylinder rotates by itself. Another object of the present invention is to provide a blade provided with a plurality of cylinders at the top of the hub, which in addition to rotating with the hub, also rotates self-rotating to cause airflow to flow radially toward the hub. . Another object of the present invention is to provide a plurality of cylindrical blades on the side of the hub, which in addition to rotating with the hub, will also self-rotate to flow the airflow toward the axial direction of the hub. . Another object of the present invention is to provide a cooling fan structure of a self-rotating cylindrical fan blade. The airflow derived through the rotating cylinder is not subjected to the interaction of the conventional wing blade, and the noise level is relatively the same under the same heat. Smaller. Another object of the present invention is to provide a cooling fan structure of a self-rotating cylindrical fan blade. The airflow derived through the rotating cylinder is convergent and wide-ranging, so that the heating element in the system can be directly guided by the airflow to the heat source. Or take the heat away directly. Another object of the present invention is to provide a cooling fan structure for a self-rotating cylindrical fan blade, which applies the Magnus effect to a cooling fan to generate a corresponding airflow. Another purpose of the present invention is to provide the radii of the respective rotating cylinders to different sizes, thereby generating different magnitudes of thrust so that the directional thrust of the rotating cylinders is offset to one side, and the wind direction is also biased to one side, and thus applied to the heat source. Does not dissipate heat directly behind the cooling fan. In order to achieve the above object, the present invention provides a cooling fan structure of a self-rotating cylindrical fan blade, comprising a rotating body and a plurality of rotating cylinders, the rotating body comprising a rotor group and a certain subgroup, the rotor group corresponding to the stator group The rotor set that drives the rotating body rotates, and the rotor set includes a hub having a top portion and a side portion, the plurality of rotating cylindrical systems being pivoted on a top or side opposite the hub, the rotating cylinder The body is driven as the rotating body rotates, causing the rotating cylinders to rotate themselves. In one embodiment, the hub includes a plurality of linkages disposed on the top or the side of the hub, one end of the rotating cylinders being pivotally coupled to the linkages. In one embodiment, the rotor assembly includes a first inner space and a second inner space, the second inner space is disposed outside the first inner space, and the first inner space is provided with a hub axle connecting the hub. And the first inner space is provided with a shell portion and a magnetic element, and the magnetic element is disposed on an inner side of the shell portion. In an embodiment, an annular partition wall is disposed between the first inner space and the second inner space. In one embodiment, the stator assembly includes a base, the base is provided with a central shaft cylinder, and the central shaft cylinder is provided with at least one bearing for supporting the hub axle, and the stator winding group is sleeved at the center An outer side of the barrel corresponds to the magnetic element. In one embodiment, the plurality of through holes are disposed at the top or the side of the hub for receiving the linking members, and the linking members are received in the through holes of the top or at the side portions. These through holes. In one embodiment, the rotating cylinders have a shaft rod, and one end of the shaft rod of the rotating cylinder is inserted into a hole corresponding to the linking member and penetrates through the hole. The extension extends into the second inner space, and the other end of the shaft rod is fixed in the rotating cylinder. In an embodiment, the linkages are a bearing. In an embodiment, the rotating cylinders are arranged in an asymmetrical arrangement. In one embodiment, an outer peripheral surface of the rotating cylinder is provided with at least one rib, and the ribs include a spiral or a wing or a waterwheel or a segmented radial distribution. In one embodiment, the radius of the rotating cylinders is the same or different. In one embodiment, the rotational speeds of the rotating cylinders are the same or different. In one embodiment, the shaft rod is provided with a groove formed on the outer peripheral side of one end of the shaft rod, and the groove is provided for the opposite side with respect to an inner surface of the hub A fastener is connected.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings. This creation is a cooling fan structure of a self-rotating cylindrical fan blade. Referring to Figures 1A, 1B, and 1C, a schematic diagram of the three-dimensional decomposition and combination and combination of the present invention is shown. The cooling fan 10 includes a rotating body 20 and a plurality of rotating cylinders 30. The rotating body 20 includes a rotor group 21 and a certain subset 22, the rotor group 21 includes a hub 210, a plurality of linking members 211, and a first inner space. 212 and a second inner space 213, the hub 210 has a top portion 2101, a side portion 2102 extending from the outer periphery of the top portion 2101, and a plurality of through holes 219, the side portions 2102 are relatively perpendicular to the top portion 2101, and the through holes 219 The through hole 219 is disposed on the hub 210 in the embodiment. The through hole 219 extends through the top portion 2101 of the hub 210 to communicate with the second inner space 213. The through holes 219 are used to accommodate the linking members 211. . These linkages 211 are shown as a bearing 223 in this embodiment, but are not limited thereto. The linkages 211 are disposed in the hub 210. In the present embodiment, the linkages 211 are received in the through holes 219 of the top portion 2101 of the hub 210, and the top surface of the linkages 211 is flush with the hub. The top surface of 210 (i.e., the outer surface of the top 2101 of the hub 210), and the linkages 211 are provided with a hole 2111. The first inner space 212 and the second inner space 213 are arranged in a concentric circle. The second inner space 213 is outside the first inner space 212, and the first and second inner spaces 212 and 213 are disposed. An annular partition wall 217 is provided for spacing the two inner spaces (i.e., the first and second inner spaces 212, 213). The first inner space 212 is provided with a hub axle 214, the hub axle 214 is connected to the hub 210, and the first inner space 212 is provided with a shell portion 218 (such as an iron shell) and a magnetic element 216 (such as a magnet). The magnetic element 216 is annularly disposed on an inner side of the shell portion 218. The stator assembly 22 includes a base 221, and the base 221 is provided with a central shaft barrel 222. The central shaft barrel 222 is provided with at least one bearing 223 for supporting the hub axle 214, and the hub shaft 214 is inserted. The bearing 223 in the central shaft barrel 222 is disposed (or pivoted) and then fastened by a clasp (for example, a C-shaped loop piece) to allow the rotor set 21 to be disposed on the stator set 22. The stator winding group 215 is disposed on an outer side of the central shaft barrel 222 and corresponds to the magnetic element 216 of the first inner space 212. When the stator winding group 215 is energized, the magnetic element 216 generates a magnetic induction effect. The rotor group 21 that drives the rotating body 20 rotates. The stator winding group 215 includes a stacked steel sheet group 2151, an insulating frame group 2152, a circuit board 2154, and a winding group 2153. The insulating frame group 2152 is disposed above and below the silicon steel sheet group 2151. The winding group 2153 is wound on the insulating frame group 2152. The circuit board 2154 is disposed under the insulating frame group 2152 and electrically connected to the winding group 2153. The circuit board 2154 is connected to the wire (not shown). An external power source (not shown) is connected to provide power to the stator winding set 215. The hub 210 and the base 221 are made of an insulating material, such as a plastic material. The plurality of rotating cylinders 30 are vertically disposed on the top portion 2101 of the hub 210, and one ends of the rotating cylinders 30 are pivotally connected to the linking members 211 to allow the rotating cylinders to be pivoted. 30 can be rotated on the corresponding linking member 211, and the linking member 211 can effectively increase the rotational efficiency of the rotating cylinder 30, and a center line c2 of the rotating cylinder 30 is parallel to the hub 210. Center line c1. The rotating cylinders 30 are rotated by the rotor group 21 of the rotating body 20 about the center line c1 of the hub 210. In one embodiment, the interlocking members 211 may be omitted, and one end of the rotating cylinders 30 is inserted into the through holes 219 corresponding to the hub 210, so that the rotating cylinders 30 follow The rotor group 21 of the rotating body 20 is rotated to be driven to rotate the rotating cylinders 30 themselves. Continuing to refer to FIGS. 1A, 1C, and 2A, the rotating cylinders 30 have a shaft rod 301. One end of the shaft rod 301 of the rotating cylinder 30 is inserted into the hole 2111 of the corresponding linking member 211. And extending through the hole 2111 to the second inner space 213, and the other end of the shaft rod 301 is fixed in the rotating cylinder 30, by the linking member 211 To support the shaft rod 301 corresponding to the rotating cylinder 30, the rotating cylinders 30 are positioned above the top 2101 of the hub 210, and when the rotating cylinders 30 rotate with the rotor assembly 21 of the rotating body 20 When the rotating cylinders 30 are interlocked, the interlocking members 211 are self-rotating, wherein the rotating direction D1 of the rotating cylinders 30 is in the same direction as the rotating direction D2 of the rotor group 21. The outer circumferential surface of each of the rotating cylinders 30 is provided with at least one rib 303. In the present embodiment, the rib 303 is spirally wound and spirally wound around the outer circumferential surface of the rotating cylinder 30. Continuing to refer to FIGS. 2A and 2B, when the hub 210 of the rotor assembly 21 rotates to rotate the rotating cylinder 30 about the center line c1 of the hub 210, the inertia of the hub 210 of the rotor assembly 21 will be rotated. Forcing the rotating cylinders 30 in an asymmetrical arrangement to be driven (or tilted or vibrated or biased or rotated by gravity) with the direction of rotation D2 of the hub 210, so that each of the rotating cylinders 30 The shaft rod 301 will rotate together with each of the linking members 211, and since the hub 210 is continuously rotated, the inertia continues to accelerate to cause the rotating cylinder 30 to surround the center line c1 of the hub 210 on the corresponding linking member 211. Self-rotation, at this time, a side of the rotating cylinder 30 has a lateral airflow to the rotating cylinder 30 (as shown in FIG. 2B, flowing from the right side to the left side in the figure) to generate a Magnus type effect. That is, the sum of the speeds above A of the rotating cylinder 30 is the additive effect (the lateral velocity F1 and the tangential velocity F2 are in the same direction), the velocity becomes faster, and the pressure is smaller (according to Bernoulli's principle), in rotation Below the cylinder 30 The sum of the degrees is the subtractive effect (the transverse velocity F1 and the tangential velocity F2 are opposite), the velocity is slower, the pressure is larger (according to Bernoulli's principle); the pressure of the last two pressures is small and the pressure is small. In the past, a lateral thrust Y perpendicular to the cross-flow direction will be produced. Under such action, the heat radiating fan 10 generates a radial airflow H (e.g., a centrifugal airflow), that is, the airflow H radially flows toward the radial direction of the heat radiating fan 10. Referring to FIG. 3, in another embodiment, the shaft rod 301 is provided with a recess 302 formed on the outer peripheral side of one end of the shaft rod 301 and opposite to the top of the hub 210. The inside of the 2101 is such that the groove 302 is connected to an opposite fastener 40 (for example, a C-ring fastener), and the fastener 40 is effectively prevented from being disengaged. 4A, 4B, and 4C, in another embodiment, the rotating cylinders 30 are radially disposed in an asymmetric arrangement on the side portion 2102 of the hub 210 of the rotating body 20, and The through holes 219 are also designed to extend through the side portions 2102 of the hub 210 such that the linking members 211 are received in the through holes 219 corresponding to the side portions 2102 to correspond to the corresponding rotating cylinders 30. Pivot. When the hub 210 of the rotating body 20 rotates and the rotating cylinder 30 self-rotates due to the inertia of the rotation of the hub 210 of the rotating body 20, the sum of the speeds above the rotating cylinder 30 is the subtractive effect (lateral velocity F1 and tangent) When the speed F2 is reversed, the speed becomes slower, and the pressure is larger (according to Bernoulli's principle), the sum of the speeds of B below the rotating cylinder 30 is an additive effect (the lateral speed F1 and the tangential speed F2 are in the same direction). When the speed is faster, the pressure is smaller (according to Bernoulli's principle); the pressure with a large pressure under the last two pressure differences is pushed forward, and a lateral thrust Y perpendicular to the cross flow direction is generated. The heat radiating fan 10 is caused to generate an axial airflow V, that is, the airflow V flows toward the axial direction of the heat radiating fan. The rotation direction D1 of the rotating cylinders 30 is the same direction as the rotation direction D2 of the rotor group 21. Referring to Figures 5A, 5B, the radius of the rotating cylinders 30 in the illustration of the previously described embodiments is a representation of the same size, but in some alternative embodiments, disposed on the hub 210 of the rotating body 20. The radius of each of the rotating cylinders 30 of the top portion 2101 (as in Figure 5A) or the side portion 2102 (as in Figure 5B) is of a different size, such as three rotating cylinders 30a, 30b, 30c in the illustration, the rotating cylinder 30a The radius of the rotating cylinder 30b is larger than the radius of the rotating cylinder 30c, whereby each of the rotating cylinders 30a, 30b, 30c generates different output air volumes, thereby generating different magnitudes of thrust, and the output air volume can be adjusted so that the When the directional thrust of the rotating cylinder 30 is shifted to the side, it is applied to the heat source which is not decooled directly behind the heat radiating fan 10. 6A, 6B, and 6C, the foregoing embodiment shows that the ribs 303 (shown in the previous figures) of the outer circumferential surface of the rotating cylinder 30 are spiral, but in other alternative embodiments, The ribs 303a are wing-shaped (as shown in FIG. 6A) or the ribs 303b are waterwheel-shaped (as shown in FIG. 6B) or the ribs 303c are segmented and radially distributed (as shown in FIG. 6C). . Continuing to refer to FIG. 7, the rotating cylinders 30a, 30b, 30c disposed vertically on the top portion 2101 of the hub 210 are arranged in an asymmetrical arrangement. The asymmetric arrangement is such that the linear distances between the two rotating cylinders 30a, 30b, and 30c are not equal. As shown in FIG. 7, the three straight distances L11 to L13 are not equal. Continuing to refer to FIG. 8, the rotating cylinders 30a, 30b, 30c radially disposed on the side portion 2102 of the hub 210 of the rotating body 20 are arranged in an asymmetrical arrangement. The asymmetric arrangement is such that the angles α, β, and γ of the two rotating cylinders 30a, 30b, and 30c are different, for example, the angle α is 120 degrees, the angle β is 140 degrees, and the angle γ is 100 degrees. And as shown in Fig. 8, the axial lines c21, c22, c23 of the respective rotating cylinders 30a, 30b, 30c extend to the center line c1 of the hub 210, and the angle γ between the rotating cylinder 30a and the rotating cylinder 30b is defined Between the axial lines c21, c22; the angle α between the rotating cylinder 30b and the rotating cylinder 30c is defined between the axial lines c22, c23; the angle β between the rotating cylinder 30c and the rotating cylinder 30a is defined Between the axial lines c21, c23. In summary, the present invention has the following advantages: 1. When the rotating body 20 of the cooling fan 10 rotates, it can drive each rotating cylinder 30 on the top portion 2101 (or the side portion 2102) of the rotating body 20 to rotate, so that each A rotating cylinder 30 rotates itself. 2. The rotating cylinders 30 are disposed on the top 2101 of the hub 210 to create a radial radiating flow, or the side portions 2102 disposed in the hub 210 may cause axial flow. 3. The airflow exited via the rotating cylinder 30, because of the interaction of the conventional wing-shaped blade changes, the noise level is relatively small under the same anti-heating. 4. The airflow derived through the rotating cylinder 30 is more convergent and has a wider range. Therefore, the heating element in the system can be directly guided by the airflow to the heat source or directly circulate and take away the heat source. The present invention has been described in detail above, but the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited. That is, all changes and modifications made in accordance with the scope of this creation application shall remain covered by the patents of this creation.

10‧‧‧ cooling fan
20‧‧‧ rotating body
21‧‧‧Rotor group
210‧‧·wheels
2101‧‧‧ top
2102‧‧‧ side
211‧‧‧ linkages
2111‧‧‧ hole
212‧‧‧First inner space
213‧‧‧Second inner space
214‧‧‧Wheel axle
215‧‧‧Stator winding group
2151‧‧‧矽Steel sheet group
2152‧‧‧Insulation frame set
2153‧‧‧ Winding group
2154‧‧‧Circuit board
216‧‧‧Magnetic components
217‧‧‧ annular partition
218‧‧‧Shell Department
219‧‧‧through holes
22‧‧‧stator group
221‧‧‧Base
222‧‧‧ center shaft tube
223‧‧‧ bearing
30, 30a, 30b, 30c‧‧‧ rotating cylinder
301‧‧‧axis rod
302‧‧‧ Groove
303, 303a, 303b, 303c‧‧ s ribs
40‧‧‧fasteners
C1, c2‧‧‧ center line
L11~L13‧‧‧ Straight line distance α, β, γ‧‧‧ angle
C21, c22, c23‧‧‧ axial line
D1, D2‧‧‧ direction of rotation
H‧‧‧ radial airflow
V‧‧‧ axial airflow
Y‧‧‧ lateral thrust

Figure 1A is a schematic exploded view of the present creation. Figure 1B is a schematic diagram of the three-dimensional combination of the present creation. The 1C figure is a schematic cross-sectional view of the creation combination. Figure 2A is a schematic view of the creation of the present plan. Figure 2B is a schematic diagram of the self-rotation of the rotating cylinder of the present creation. Figure 3 is a schematic cross-sectional view showing another embodiment of the present creation. Fig. 4A is a perspective exploded view showing another embodiment of the present creation. Figure 4B is a schematic diagram of the stereoscopic operation of another embodiment of the present creation. Figure 4C is a schematic diagram of the front view of another implementation of the present creation. Figures 5A and 5B are schematic diagrams of other alternative implementations of the present creation. Figures 6A, 6B, and 6C are schematic views of various implementations of the inventive rotating cylinder. Figure 7 is a schematic view showing the asymmetric arrangement of the rotating cylinders at the top of the hub. Figure 8 is a schematic view showing the asymmetric arrangement of the rotating cylinders on the side of the hub.

10‧‧‧ cooling fan

20‧‧‧ rotating body

21‧‧‧Rotor group

210‧‧·wheels

2101‧‧‧ top

2102‧‧‧ side

211‧‧‧ linkages

2111‧‧‧ hole

215‧‧‧Stator winding group

2151‧‧‧矽Steel sheet group

2152‧‧‧Insulation frame set

2153‧‧‧ Winding group

2154‧‧‧Circuit board

219‧‧‧through holes

22‧‧‧stator group

221‧‧‧Base

222‧‧‧ center shaft tube

223‧‧‧ bearing

30‧‧‧Rotating cylinder

301‧‧‧axis rod

303‧‧ ‧ ribs

C1, c2‧‧‧ center line

Claims (12)

A cooling fan structure for a self-rotating cylindrical fan blade, comprising: a rotating body comprising a rotor group and a certain subgroup, the rotor group corresponding to the stator group to drive the rotor group of the rotating body, and the rotor group includes a hub having a top portion and a side portion; and a plurality of rotating cylinders pivotally mounted on the top portion or the side portion of the hub, the rotating cylinders being driven as the rotating body rotates, Let the rotating cylinders rotate themselves. The heat dissipation fan structure of the self-rotating cylindrical fan blade of claim 1, wherein the hub comprises a plurality of linkages disposed at the top or the side of the hub, one end of the rotating cylinders The pivotal members are pivotally connected to each other. The heat dissipation fan structure of the self-rotating cylindrical fan blade of claim 2, wherein the rotor group includes a first inner space and a second inner space, and the second inner space ring is disposed outside the first inner space. The first inner space is provided with a hub axle connected to the hub, and the first inner space is provided with a shell portion and a magnetic element, and the magnetic element is disposed on an inner side of the shell portion. The cooling fan structure of the self-rotating cylindrical fan blade of claim 3, wherein an annular partition wall is disposed between the first inner space and the second inner space. The cooling fan structure of the self-rotating cylindrical fan blade of claim 3, wherein the stator assembly comprises a base, the base is provided with a central shaft cylinder, and the central shaft cylinder is provided with at least one bearing for supporting the The hub axle, the stator winding group is sleeved on an outer side of the central shaft cylinder to correspond to the magnetic component. The heat dissipation fan structure of the self-rotating cylindrical fan blade of claim 2, wherein a plurality of through holes are disposed at the top or the side of the hub for receiving the linkages, and the linkages The pieces are received in the through holes of the top or in the through holes of the side. The cooling fan structure of the self-rotating cylindrical fan blade according to claim 6, wherein the rotating cylinder has an axial rod, and one end of the shaft rod of the rotating cylinder is tightly coupled to match The piece has a hole and protrudes through the hole to extend into the second inner space, and the other end of the shaft is fixed in the rotating cylinder. The cooling fan structure of the self-rotating cylindrical fan blade according to claim 2, wherein the linking member is a bearing. The cooling fan structure of the self-rotating cylindrical fan blade according to claim 1, wherein the rotating cylinders are arranged in an asymmetric arrangement. A cooling fan structure of a self-rotating cylindrical fan blade according to claim 1, wherein an outer peripheral surface of the rotating cylinder is provided with at least one ridge, the ribs including a spiral or a wing or a waterwheel or a minute The segments are radially distributed. The cooling fan structure of the self-rotating cylindrical fan blade according to claim 1, wherein the radius of the rotating cylinders is the same or different. The cooling fan structure of the self-rotating cylindrical fan blade according to claim 7, wherein the shaft rod is provided with a groove formed concavely on an outer peripheral side of one end of the shaft rod, and opposite to the hub An inner side of the groove is for connecting with an opposite fastener.