TWI634266B - Magnetic levitation fan device - Google Patents

Abstract

A magnetic floating fan device includes a drive motor, a magnetic rotating member and a magnetic fan unit. The drive motor includes a housing and a rotating shaft extending out of the housing. The rotating shaft of the driving motor is threaded through the magnetic rotating member. The magnetic rotating member includes a plurality of first surfaces and a plurality of second surfaces alternately arranged. These first surfaces are different from the magnetic poles of these second surfaces. The magnetic fan unit is disposed opposite to the magnetic rotating member. The magnetic fan unit includes a plurality of third surfaces and a plurality of fourth surfaces that are alternately arranged. These third surfaces are different from the magnetic poles of these fourth surfaces. These first surfaces are identical to the magnetic poles of the third surfaces, and these second surfaces are identical to the magnetic poles of the fourth surfaces.

Description

Magnetic floating fan device

The present invention relates to a magnetic floating fan unit device, and more particularly to a magnetic floating fan unit device which can effectively improve energy conversion efficiency.

The fan unit includes a seat body, a stator, and a rotor. The stator and the rotor are all disposed in the seat body. The stator includes a bearing and a coil, wherein the coil is disposed around the bearing. The rotor comprises a rotating member, a rotating shaft, a magnetic member and a plurality of blades, wherein the rotating shaft is disposed in the bearing, the rotating shaft and the rotating member are connected to each other, the magnetic member is disposed on the rotating member, and the fan blade rotates radially with the rotating shaft as an axis. The pieces extend outward. When the fan device is energized, the coil will sense each other with the magnetic member by switching the magnetic pole, thereby generating a force to drive the rotating shaft and the rotating member to drive the fan blade to rotate, so as to drive the air to generate a flow guiding effect.

The fan device mainly connects a rotating member having a plurality of blades to a rotating shaft. When the driving force drives the rotating shaft, the rotating shaft drives the rotating member having a plurality of blades to rotate. Such structural design and driving manner are also the most common at present. The fan device structure and the driving method, however, the energy conversion efficiency is not good by the structure and the driving mode in which the rotating shaft is connected to the rotating member having a plurality of blades and the rotating member is driven by the driving shaft. That is to say, the conventional fan device consumes more power during use, and therefore, how to improve the energy conversion efficiency of the fan device is really relevant to those in the field. The focus of attention.

One of the objects of the present invention is to provide a magnetic floating fan device having good energy conversion efficiency.

To achieve the above advantages, the present invention provides a magnetic floating fan device including a drive motor, a magnetic rotating member, and a magnetic fan unit. The drive motor includes a housing and a rotating shaft extending out of the housing. The rotating shaft of the driving motor is disposed through the magnetic rotating member, and the magnetic rotating member includes a plurality of first surfaces and a plurality of second surfaces alternately arranged. These first surfaces are different from the magnetic poles of these second surfaces. The magnetic fan unit is disposed opposite to the magnetic rotating member. The magnetic fan unit includes a plurality of third surfaces and a plurality of fourth surfaces alternately arranged, and the third surfaces are different from the magnetic poles of the fourth surfaces. These first surfaces are identical to the magnetic poles of the third surfaces, and these second surfaces are identical to the magnetic poles of the fourth surfaces.

In an embodiment of the present invention, the magnetic floating fan device further includes a first cover disposed on the housing of the drive motor, and the rotating shaft and the magnetic rotating member are received in the first cover, and the first cover has opposite The inner surface and the outer surface, the inner surface faces the magnetic rotating member and the rotating shaft, and the magnetic fan unit is disposed above the outer surface.

In an embodiment of the invention, the magnetic floating fan device further includes a second cover disposed on an outer surface of the first cover, and the magnetic fan unit is received in the second cover.

In an embodiment of the invention, the second cover has a plurality of hollowed out regions exposing the magnetic fan unit.

In an embodiment of the invention, the magnetic fan unit further includes a disk magnet, a hub, and a plurality of blades. Disc magnet has magnetic orientation A bottom surface of the rotating member, the bottom surface including the third surface and the fourth surface. The hub is sleeved on a disc magnet. The blades are respectively connected to the hubs, and the blades extend radially outward from the hub.

In an embodiment of the invention, the magnetic rotating member further includes a top surface, the top surface and the bottom surface of the disk magnet face each other, and the top surface includes the first surface and the second surface, the area of the top surface It is roughly equal to the area of the bottom surface.

In an embodiment of the invention, the magnetic rotating member comprises a circular disk magnet, a rectangular disk magnet or a polygonal disk magnet.

In the magnetic floating fan device of the present invention, the magnetic fan unit is disposed opposite to the magnetic rotating member, and the magnetic fan unit and the magnetic rotating member are not connected by any connecting member, and the magnetic rotating member includes a plurality of alternately arranged a surface and a plurality of second surfaces, and the first surfaces are different from the magnetic poles of the second surfaces. The magnetic fan unit includes a plurality of third surfaces and a plurality of fourth surfaces alternately arranged, and the third surfaces are different from the magnetic poles of the fourth surfaces. Under such a structural design, the magnetic rotating member drives the magnetic fan unit to rotate by the attraction and repulsive force generated between the magnetic fan unit and the magnetic rotating member, and the driving method can further improve the energy conversion efficiency of the device. And at the same time achieve the power saving effect.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

1, 1a‧‧‧ magnetic floating fan device

11‧‧‧Drive motor

12‧‧‧Magnetic rotating parts

13‧‧‧Magnetic fan unit

14‧‧‧First cover

15‧‧‧Second cover

111‧‧‧Shell

112‧‧‧ shaft

120‧‧‧ top surface

121‧‧‧ first surface

122‧‧‧ second surface

123‧‧‧First magnet unit

124‧‧‧Second magnet unit

131‧‧‧ third surface

132‧‧‧ fourth surface

133‧‧‧disk magnet

134‧‧·wheels

135‧‧‧ fan leaves

136‧‧‧3rd magnet unit

137‧‧‧fourth magnet unit

141‧‧‧ inner surface

142‧‧‧ outer surface

150‧‧‧ hollow area

1330‧‧‧ bottom surface

201‧‧‧ Roof

202‧‧‧ ceiling

1 is a cross-sectional view showing a magnetic floating fan device according to an embodiment of the present invention; Schematic diagram.

2 is a schematic view showing the three-dimensional structure and relative position of the magnetic rotating member and the magnetic fan unit shown in FIG. 1.

3 is a cross-sectional view showing a magnetic floating fan device according to another embodiment of the present invention.

1 and FIG. 2, FIG. 1 is a cross-sectional view of a magnetic floating fan device 1 according to an embodiment of the present invention. 2 is a schematic view showing the three-dimensional structure and relative position of the magnetic rotating member 12 and the magnetic fan unit 13 shown in FIG. 1. It should be particularly noted that Fig. 2 only shows the member of the disk magnet 133 of the magnetic fan unit 13, and the member of the disk magnet 133 will be described in the following description. As shown in FIGS. 1 and 2, the magnetic floating fan device 1 of the present embodiment includes a drive motor 11, a magnetic rotating member 12, and a magnetic fan unit 13. The drive motor 11 includes a housing 111 and a rotating shaft 112 extending from the housing 111. The rotating shaft 112 of the driving motor 11 is disposed through the magnetic rotating member 12. Specifically, the rotating shaft 112 is disposed at a central position of the magnetic rotating member 12. The magnetic rotating member 12 includes a plurality of first surfaces 121 and a plurality of second surfaces 122 alternately arranged, and magnetic poles of the first surfaces 121 are different from magnetic poles of the second surfaces 122, and the first surfaces 121 The magnetic poles are, for example, N poles, and the second surfaces 122 are, for example, S poles, but the invention is not limited thereto. The magnetic fan unit 13 is disposed opposite to the magnetic rotating member 12 . The magnetic fan unit 13 includes a plurality of third surfaces 131 and a plurality of fourth surfaces 132 alternately arranged, and the magnetic poles of the third surfaces 131 are different from the magnetic poles of the fourth surface 132, and the third surfaces 131 are, for example, N poles. These fourth surfaces 132 are, for example, S poles, but the invention is not limited thereto. In addition, these third tables of the magnetic fan unit 13 The magnetic poles of the faces 131 are identical to the magnetic poles of the first surfaces 121 of the magnetic rotating member 12 (for example, N poles respectively), the magnetic poles of the fourth surfaces 132 of the magnetic fan unit 13 and the second surfaces 122 of the magnetic rotating member 12. The magnetic poles are the same (for example, the S poles respectively).

In the present embodiment, the magnetic rotating member 12 is, for example, a circular disk magnet, but the invention is not limited thereto. In other embodiments, the magnetic rotating member 12 is, for example, a rectangular disk magnet or a polygonal disk. magnet.

It should be particularly noted that, in this embodiment, the first surface 121 and the second surface 122 of the magnetic rotating member 12 are the surfaces of the first magnet unit 123 and the second magnet unit 124, respectively, and the first surface 121 and the second surface The number of surfaces 122 is, for example, four, that is, the number of the first magnet unit 123 and the second magnet unit 124 is four, respectively. In contrast, the third surface 131 and the fourth surface 132 of the magnetic fan unit 13 are the surfaces of the third magnet unit 136 and the fourth magnet unit 137, respectively, and the number of the third surface 131 and the fourth surface 132 is, for example, four That is, the number of the third magnet unit 136 and the fourth magnet unit 137 is four, respectively. The number of the first surface 121, the second surface 122, the third surface 131, and the fourth surface 132 is only one of the embodiments of the present invention. The first surface 121 is not limited thereto. The number of the second surface 122, the third surface 131, and the fourth surface 132 may be increased or decreased depending on the actual situation. Further, the first magnet units 123 and the second magnet units 124 are connected to each other, and the third magnet units 136 and the fourth magnet units 137 are connected to each other.

The magnetic floating fan device 1 of the present embodiment is in an activated state between the first surface 121 of the magnetic rotating member 12 and the second surface 122 and the third surface 131 and the fourth surface 132 of the magnetic fan unit 13 The attractive force and repulsive force generated, therefore, when the drive motor 11 drives the rotating shaft 112 When the rotation of the magnetic rotating member 12 is rotated, the magnetic rotating member 12 further drives the magnetic fan unit 13 to rotate by the continuous attraction and repulsive force between the magnetic rotating member 12 and the magnetic fan unit 13, and the driving method can Further improving the energy conversion efficiency of the maglev fan device 1, in other words, by driving the magnetic fan unit 13 by the attraction and repulsive force between the magnetic rotating member 12 and the magnetic fan unit 13, the power saving can be better. efficacy.

The detailed structure of the maglev fan device 1 described in this embodiment will be further described below.

Referring to FIG. 1 again, the magnetic fan unit 13 of the embodiment further includes a disk magnet 133, a hub 134 and a plurality of blades 135. The disc magnet 133 has a bottom surface 1330 facing the magnetic rotating member 12, and the bottom surface 1330 includes the third surface 131 and the fourth surface 132 (shown in FIG. 2). The hub 134 is sleeved on the disc magnet 133. The blades 135 are respectively connected to the hub 134. Specifically, in the embodiment, the blades 135 extend radially from the hub 134, and the blades 135 and the hub 134 are integrally formed, for example, but the present invention Not limited to this.

As described above, as shown in FIG. 1, the magnetic rotating member 12 of the embodiment further includes a top surface 120. The top surface 120 and the bottom surface 1330 of the disc-shaped magnet 133 face each other, and the top surface 120 includes the first surface 121 and the second surface 122 described above. It should be noted that, in this embodiment, the area of the top surface 120 of the magnetic rotating member 12 is, for example, substantially equal to the area of the bottom surface 1330 of the disc-shaped magnet 133, but the invention is not limited thereto, and the other In the embodiment, the area of the top surface 120 of the magnetic rotating member 12 is, for example, smaller or larger than the area of the bottom surface 1330 of the disk magnet 133.

According to the above, as shown in FIG. 1, the magnetic floating fan described in this embodiment The device 1 further includes a first cover 14. The first cover 14 is disposed in the housing 111 of the drive motor 11, and the rotating shaft 112 of the drive motor 11 and the magnetic rotating member 12 are housed in the first cover 14. The first cover 14 has an opposite inner surface 141 and an outer surface 142, the inner surface 141 faces the magnetic rotating member 12, and the magnetic fan unit 13 is disposed above the outer surface 142.

As shown in FIG. 1 , the magnetic floating fan device 1 of the present embodiment further includes a second cover 15 . The second cover 15 is disposed on the outer surface 142 of the first cover 14, and the magnetic fan unit 13 is received in the second cover 15. Specifically, the second cover 15 has, for example, a plurality of hollow regions 150 exposing the magnetic fan unit 13 , and the magnetic rotating member 12 drives the magnetic fan unit 13 by the attraction and repulsive force generated between the magnetic fan unit 13 and the magnetic fan unit 13 . Rotating, the rotating magnetic fan unit 13 causes the air to flow to generate an air flow, and the generated air flow can be derived from the hollowed areas 150.

Please refer to FIG. 3, which is a cross-sectional view of a magnetic floating fan device 1a according to another embodiment of the present invention. As shown in FIG. 3, the magnetic floating fan device 1a of the present embodiment is similar to the magnetic floating fan device 1 shown in FIG. 1, except that the driving motor 11 and the magnetic rotating member of the magnetic floating fan device 1a according to the present embodiment are different. The 12 series is disposed in a space between the roof 201 and the ceiling 202, and the magnetic fan unit 13 is disposed on the ceiling 202. When the maglev fan device 1a has not been activated, the magnetic fan unit 13 is attracted to the surface of the ceiling 202 by the attraction force with the magnetic rotating member 12. When the maglev fan device 1a is in the activated state, due to the attraction between the first surface 121 of the magnetic rotating member 12 and the second surface 122 and the third surface 131 and the fourth surface 132 of the magnetic fan unit 13 Repulsive force (as shown in FIG. 2), therefore, when the driving motor 11 drives the rotating shaft 112 to rotate to drive the magnetic rotating member 12 to rotate, the magnetic rotating member 12 is rotated by the magnetic rotating member 12 and the magnetic wind The continuous attraction and repulsive force between the fan units 13 further drives the rotation of the magnetic fan unit 13.

In summary, the magnetic floating fan device of the present invention, wherein the magnetic fan unit is disposed opposite to the magnetic rotating member, and the magnetic fan unit and the magnetic rotating member are not connected by any connecting member, and the magnetic rotating member includes alternating The plurality of first surfaces and the plurality of second surfaces are arranged, and the first surfaces are different from the magnetic poles of the second surfaces. The magnetic fan unit includes a plurality of third surfaces and a plurality of fourth surfaces alternately arranged, and the third surfaces are different from the magnetic poles of the fourth surfaces. Under such a structural design, the magnetic rotating member drives the magnetic fan unit to rotate by the attraction and repulsive force generated between the magnetic fan unit and the magnetic rotating member, and the driving method can further improve the energy conversion efficiency of the device. And at the same time achieve the power saving effect.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

Claims (7)

A magnetic floating fan device comprising: a driving motor comprising a housing and a rotating shaft extending from the housing; a magnetic rotating member, the rotating shaft of the driving motor is disposed on the magnetic rotating member, the magnetic rotating member comprises a plurality of The first magnet unit and the second magnet unit are alternately arranged, and the adjacent first magnet unit and the second magnet unit are connected to each other, each of the first magnet units includes a first surface, and each of the second magnet units includes a a second surface, wherein the first surface is different from the magnetic poles of the second surfaces; and a magnetic fan unit disposed opposite the magnetic rotating member, the magnetic fan unit including a plurality of alternately arranged third magnet units And the fourth magnet unit, and the adjacent third magnet unit and the fourth magnet unit are connected to each other, each third magnet unit includes a third surface, each fourth magnet unit includes a fourth surface, and the The three surfaces are different from the magnetic poles of the fourth surfaces, wherein the first surfaces are identical to the magnetic poles of the third surfaces, and the second surfaces are the same as the magnetic poles of the fourth surfaces The first surface of the magnetic rotating member, the second surfaces, and the third surfaces of the magnetic fan unit, the fourth portion, when the driving motor drives the rotating shaft to rotate the magnetic rotating member A continuous attraction and repulsive force is generated between the surfaces, thereby causing the magnetic rotating member to drive the magnetic fan unit to rotate. The magnetic floating fan device of claim 1, further comprising a first cover disposed on the housing of the drive motor, the rotating shaft and the magnetic rotating member being received in the first cover, The first cover has an opposite inner surface And an outer surface facing the magnetic rotating member and the rotating shaft, the magnetic fan unit being disposed above the outer surface. The magnetic floating fan device of claim 2, further comprising a second cover disposed on the outer surface of the first cover, the magnetic fan unit being received in the second cover. The magnetic floating fan device of claim 3, wherein the second cover has a plurality of hollowed out regions exposing the magnetic fan unit. The magnetic fan unit of claim 1, wherein the magnetic fan unit further comprises: a disk magnet having a bottom surface facing the magnetic rotating member, the bottom surface including the third surface and the a fourth surface; a hub disposed on the disc magnet; and a plurality of blades respectively coupled to the hub, the blades extending radially outward from the hub. The magnetic floating fan device of claim 5, wherein the magnetic rotating member further comprises a top surface, the top surface and the bottom surface of the disc magnet face each other, the top surface including the first And a surface of the second surface having an area substantially equal to an area of the bottom surface. The magnetic floating fan device according to claim 1, wherein the magnetic rotating member comprises a circular disk magnet, a rectangular disk magnet or a polygonal disk magnet.