KR20080000179U - Magnetic floating shaft set and apparatus using same - Google Patents

Abstract

The present invention relates to a magnetic levitation rotary module and its application device, the magnetic levitation rotary module according to the present invention includes two guide members, a rotating shaft, a magnetic member and a conductive coil, the two guide members are spaced apart from each other One guiding member may move facing the other guiding member to change the distance between two guiding members, and a rotating shaft may be installed between the two guiding members, and both ends of the rotating shaft may be Facing the guiding member, a magnetic member is installed on the rotational shaft, and a conductive coil is installed coaxially around the rotational shaft, and generates a magnetic force to induce the magnetic member, causing the rotational shaft to float between the two guiding members, It also causes the magnetic member to rotate about the axis of rotation.

Maglev rotating module, guiding member, rotating shaft, magnetic member, conductive coil, annular wall, space, convex portion, recessed portion, spherical body, magnetic levitation bearing, working member.

Description

Magnetic levitation rotary module and its application device {MAGNETIC FLOATING SHAFT SET AND APPARATUS USING SAME}

1 is a three-dimensional combination diagram of a first preferred embodiment of the present invention.

2 is a cross-sectional view of the first preferred embodiment of the present invention.

3 is a partial cross-sectional view of the first preferred embodiment showing the relative operating relationship between the conductive coil and the magnetic member of the present invention.

Fig. 4 is a structural display diagram of the first preferred embodiment showing the relative relationship between the rotational axis of the present invention, the stationary state of the first guide member and the second guide member.

Fig. 5 is an operation indicator of the first preferred embodiment showing the relative relationship between the axis of rotation of the present invention, the first guiding member and the second guiding member.

6 is an operation display diagram of the first preferred embodiment showing the state of movement of the rotary shaft of the present invention.

Fig. 7 is an operation indicator of the first preferred embodiment showing a state in which the first guide member of the present invention moves while facing the second guide member.

FIG. 8 is a cross-sectional view of the same type as FIG. 2, in which a magnetic levitation bearing is wrapped around a rotating shaft.

9 is a cross-sectional view of a second preferred embodiment of the present invention.

10 is a cross-sectional view of a third preferred embodiment of the present invention.

11 is a cross-sectional view of a fourth preferred embodiment of the present invention.

FIG. 12 is a cross-sectional view of the same kind as in FIG. 11, illustrating a state in which a steel ball is inserted into a cross section of a rotating shaft.

13 is a cross-sectional view of a fifth preferred embodiment of the present invention.

14 is a cross-sectional view of a sixth preferred embodiment of the present invention.

FIG. 15 is a cross-sectional view of the same kind as in FIG. 14, showing that the bearing is separately added between the rotating shaft and the guiding member.

16 is a display diagram of a general fan.

Explanation of symbols on the main parts of the drawings

10, 61, 66, 72, 79, 86: Fan 20, 80: First frame

21: Central 22: No First Guidance

23: insertion part 24, 82: conductive coil

25, 83: circuit board 26: position limiting member

30: second frame 32: second delivery member

34: coupling part 40, 87: operating member

41: base 42, 64, 69, 76, 88: axis of rotation

43: magnetic levitation bearing 44: magnetic member

45: side wall 46: wings

47: hole

50, 60, 65, 71, 78, 85: Maglev rotating module

62, 67, 73, 91: absence of delivery

63: annular wall 68: convex portion

70, 74, 223, 322: recess 75: spherical body

81: stop 89: bearing

90: coil 221: adjusting member

222: position fixing member 431: inner ring

432: outer ring

The present invention relates to a magnetic levitation rotation module, and more particularly, to rotating a magnetic levitation rotation module of a high rotation speed.

The fan is widely applied in various technical fields, and mainly the air flows through the rotation of the fan, thereby showing the effects of flow induction and heat dissipation. Referring to FIG. 16, the fan 1 has a stator 2 and a rotor 3, the stator 2 having two bearings 4 and a coil (a) around the bearings 4. 5), the rotor 3 has a rotating shaft 6, a magnetic member 7 and several blades 8, the rotating shaft 6 penetrates into the bearing 4 The blades 8 are provided so as to extend outward in a radial form with the axis of rotation as their axis. When the fan 1 rotates, the coil 5 is guided with the magnetic member 7 in a manner of changing the magnetic poles, and further generates an action force, causing the rotation shaft 6 and the blade 8 to rotate. As a result, it is possible to achieve the purpose of causing air to flow to generate a flow inducing effect.

However, when the fan 1 rotates, the direction of action of the magnetic force generated by the coil 5 and the magnetic member 7 never coincides with the axial direction of the rotation shaft 6, and at the same time the fan 1 rotates, Deflected within the deflection angle 9, once the fan 1 is deflected, the bearing cannot be evenly applied, and if the bearing 4 is unbalanced in the long term, unnatural wear damage is likely to occur. do.

Moreover, as the degree of wear damage of the bearing 4 accumulates, the deflection angle 9 of the fan 1 becomes larger, the internal spacing increases, the mechanical efficiency of the bearing 4 decreases, and the service life of the bearing 4 increases. Since the fan 1 is also loosened parts, the friction area is increased to generate noise. In addition, since the bearing 4 has an open structure, dust accumulates well and affects the operation of the bearing 4, which is another cause of lowering the mechanical efficiency.

U.S. Patent No. 6,309,190 discloses a kind of support device for the shaft of an axial fan, wherein the shaft of the axial fan is positioned between two support members, and again uses a magnetic ring of the fan by using an induced magnetic force generated by the coil of the electronic control element. In this case, by rotating the fan with the induced magnetic force, the fan shaft and each support member are brought into contact with each other as the fan rotates, as well as reducing the frictional force of the fan operation.

The US patent replaces the structure of a general fan fixed by using a bearing by supporting the shaft of the fan using two support members. However, in addition to being used for the rotation of the fan, the magnetic force generated between the coil and the magnet ring also brings about an action to pull the axial fan to deflect. In addition, when the fan rotates, the air flows, and when the air flows, the fan generates a repulsive force in a direction opposite to the flow direction. If a difference occurs in the manufacture of the fan and the distance between the two support members is less than the length of the fan's shaft, the fan's shaft will rotate along the fan with the support member's support, but both ends of the fan's shaft The magnetic force and the repulsive force are very easily received, whereby a large contact force and a repulsive force are generated between one end and the support member, and when a relatively large force is applied to the one end, an abnormal wear state or the aforementioned various forces are applied to the main body of the shaft of the fan. When received, it will bend. Wear or deformation of the shaft of the fan causes the fan to not rotate at high speed, and also increases the noise and life of the fan as it rotates.

The main object of the present invention is to provide a magnetic levitation rotation module and application that can operate at a high rotational speed.

It is still another object of the present invention to provide a magnetic levitation rotating module and an application device having good mechanical efficiency, long life, and low noise.

In order to achieve the above object, the magnetic levitation rotating module provided by the present invention includes two guide members, a rotating shaft, a magnetic member and a conductive coil, the two guide members are spaced apart from each other, one guide member Is moved facing each other with other guiding members, so that the distance between the two guiding members can be changed, and the rotation axis is provided between the two guiding members, and both ends of the rotation shafts face two guiding members, respectively. And the magnetic member is installed on the rotating shaft, and the conductive coil is coaxially installed outside the rotating shaft, and the conductive coil generates a magnetic force to induce the magnetic member, thereby causing the rotating shaft to float between the two guide members. In addition, the magnetic member is rotated about the rotation axis, the magnetic levitation rotary module provided by the present invention and The application device is not only simple and simple in structure, but also the force between the rotating shaft, the first guiding member and the second guiding member is relatively small, which can increase the mechanical efficiency by reducing friction and repulsive force, and reduce the possibility of wear of the rotating shaft, It can extend the life and reduce the noise. In addition, the present invention adjusts the distance between the two guiding members to make the operation of the magnetic levitation rotating module smoother, making it an application state suitable for high speed rotation.

In order to describe in detail the structure, features and effects of the present invention, a preferred embodiment will be described below with reference to the drawings.

1 to 3 is a preferred embodiment of the magnetic levitation rotation module 50 and the heat dissipation fan 10 provided by the present invention, the fan 10 is a first frame 20 and the second frame 30 It can be seen that the magnetic levitation rotation module 50 is installed between the first frame 20 and the second frame 30.

As shown in FIG. 1, one side of the first frame 20 has four positioning members 26, and each of the positioning members 26 is concave and installed at corners of the first frame 20, respectively. It is. The second frame 30 has four coupling parts 34, and the outer end of each coupling part 34 is installed to fit within the position defining member 26 of the first frame 20, so that the second frame 30 is provided. 30 is fixedly covered with the first frame 20.

As shown in FIG. 2, the first frame 20 has a hollow central portion 21, a positioning member 222 is provided in the central portion 21, and the positioning member 222 has an insertion portion 23. ), The adjusting member 221 is provided on the positioning member 222, the adjusting member 221 is a male screw, and the adjusting member 221 is screwed to the positioning member 222, It is also inserted into the insert 23.

The magnetic levitation rotating module 50 includes a first guiding member 22, a second guiding member 32, a rotating shaft 42, an operating member 40, a magnetic member 44 and a conductive coil 24. have.

The first guiding member 22 and the second guiding member 32 are made of a wear resistant material such as diamond, graphite or porcelain. The first guiding member 22 and the second guiding member 32 have recesses 223 and 322, respectively, and the first guiding member 22 is provided in the insertion portion 23 of the position fixing member 222. The second guiding member 32 is coupled to each other and the second guiding member 32 is installed at a position corresponding to the first guiding member 22 inside the second frame 30, whereby the first guiding member 22 and the first guiding member 22 are formed. The two guide members 32 are provided in the first frame 20 and the second frame 30 so that the two recesses 223 and 322 face each other at intervals. When the adjusting member 221 of the first frame 20 moves facing the position fixing member 222, the adjusting member 221 is inserted into the insertion portion of the position fixing member 222 together with the first guide member 22. 23) it is possible to change the distance between the two guide members 22,32 by moving in.

The rotating shaft 42 is provided between the first guiding member 22 and the second guiding member 32, and both ends of the rotating shaft 42 are recessed portions 223 and 322 of the two guiding members 22 and 32, respectively. Towards).

The operating member 42 has a circular base 41, the base 41 has a number of heat dissipation holes 47, a circular side wall 45 is installed along the edge of the base 41, The rotating shaft 42 penetrates vertically through the center of the base 41. One end of the rotation shaft 42 protrudes to one side of the base 41, and the other end extends into the side wall 45. Several wings 46 are provided on the outer circumferential surface of the side wall 45, and the wings 46 extend radially outward from the side wall 45.

The magnetic member 44 is a magnetic ring, and by being installed on the inner circumferential surface of the side wall 45, the magnetic member 44 can operate synchronously with the operation member 40 and the rotation shaft 42.

The conductive coil 24 has an annular circuit board 25, and the coil 24 and the circuit board 25 are covered and installed in the central portion 21 of the first frame 20, so that the coil 24 has a rotating shaft 42. It is installed coaxially at the outer side of the magnetic member 44 and the rotating shaft 43, and the center line of the magnetic field of the magnetic member 44 is coincident with the center line of the magnetic field generated by the conductive coil 24.

Through the above-described structure, when the fan 10 is not operated, the operating member 40 is in a state of magnetic levitation through the magnetic force of the magnetic member 44, and both ends of the rotating shaft 42 are first guided. The member 22 and the second guide member 32 are not in contact with each other, and the coil 24 is electrically energized to excite each other, so that an induction potential is generated in the magnetic member 44, and the magnetic member ( An angular displacement is generated at 44, and furthermore, when the actuating member 40 is rotated and the actuating member 40 is rotated, the blades 46 are rotated to flow air to achieve a flow induction and heat dissipation effect. Done. The center line of the magnetic field that the magnetic member 44 has coincides with the center line of the magnetic field generated by the conductive coil 24, so that the magnetic force generated by the coil 24 and the magnetic force of the magnetic member 44 when the magnetic member 44 rotates. This stable and unbiased state can be ensured.

As shown in FIG. 3, if deflection occurs due to magnetic force or other factors when the rotational shaft 42 starts to operate, both ends of the rotational shaft 42 may be connected to the first guide member 22 and the second guide member 32. Guided and positioned through the concave portions 223 and 322, the rotational shaft 42 is subjected to reliable rotational motion by ensuring that the operation of the rotational shaft 42 maintains a solid straight line.

4 to 7, in the process of rotating the operating member 40, each blade 46 operates according to the repulsive force caused by the flow of air, and also operates along the operating member 40 to operate the rotary shaft 42. Linear movement along the axial direction. The length of the rotating shaft 42 is referred to as B, and the distance at which the rotating shaft 42 is moved by the repulsive force is referred to as C, and the recesses 223 and the second leading members 32 of the first guide member 22 are recessed. Assuming that the maximum distance between the sections 322 is A, the relative relationship between the above-mentioned lengths is A> B + C (as shown in Fig. 5). As a result, the rotational shaft 42 is positioned between the first guiding member 22 and the second guiding member 32 and unnecessary force and repulsive force are not generated between the rotational shaft 42 and each of the guiding members 22 and 32. Will not. After the detection process or use in the manufacture of the fan 10, the rotation shaft 42 and the first guide member 22 or the second guide member 32 are too close to or deformed, or the rotary shaft 42 and two When the gap between the guide members 22 and 32 is found to be too large, the first guide member 22 is adjusted by adjusting the position of the adjustment member 221 with respect to the position fixing member 222 as shown in FIG. The position of can achieve the purpose of adjusting the distance between both ends of the rotating shaft 42, the 1st guide member 22, and the 2nd guide member 32 according to the change of the adjustment member 221, By changing the contact area between the 42 and the two guide members 22 and 32, the rotation of the operating member 40 can be made smoother, and the rotary shaft 42 also easily supports the two guide members 22 and 32. Since the bent force is not bent, the rotational speed of the operating member 40 of the fan 10 can be further increased.

As a result, the magnetic levitation rotation module 50 and the application device of the present invention are relatively simple and simple in structure, and have a small acting force between the rotating shaft, the first guiding member, and the second guiding member, thereby lowering the frictional force and the repulsive force, thereby improving mechanical efficiency. Can increase the wear rate, reduce the possibility of abrasion, prolong the service life, lower the noise, and at the same time, the invention can adjust the distance between the two guiding members to further enhance the operation of the magnetic levitation rotating module. Smooth and suitable for high speed applications.

Referring to FIG. 8, when the magnetic levitation rotation module 50 provided by the present invention is applied to a fan, the magnetic levitation bearing 43 is disposed between the rotating shaft 42 of the magnetic levitation rotation module 50 and the conductive coil 24. It may further include. The magnetic levitation bearing 43 has an inner ring 431 and an outer ring 432, the inner ring 431 is installed to surround the rotation shaft 42, the outer ring 432 is the center of the first frame 20 And installed in the 21 and wrapped around the inner ring 431 at a certain distance, the magnetic levitation bearing 43 is limited to the rotary shaft 42 to move only in the axial direction using a magnetic force, the rotary shaft 42 This prevents the occurrence of axial deflection during operation, and further ensures smoothness and stability during operation of the rotary shaft 42.

The direction of the rotary shaft of the magnetic levitation rotary module is directed to the recesses of the two guiding members, so that the recesses have the effect of guiding and correcting the rotary shafts. Can match each other.

9 shows a state in which the magnetic levitation rotation module 60 of the second preferred embodiment of the present invention is applied to the fan 61, the main structure of which is substantially the same as the first preferred embodiment but has the following features. Each guide member 62 has an annular wall 63 extending from the surface, a space is formed inside the annular wall 63, and both ends of the rotating shaft 64 are annular of two guide members 62, respectively. Installed inside the wall 63, the annular wall surrounds the outer circumference of the rotational shaft 64.

10, the magnetic levitation rotary module 65 of the third preferred embodiment of the present invention is applied to the fan 66, and its features are as follows: Each guide member 65 has a convex portion ( 68, each having a concave portion 70 at both ends of the rotating shaft 69, the rotating shaft 69 between the two guide members 67 in such a way that the concave portion 70 faces the convex portion 68. Is installed on.

11, the magnetic levitation rotary module 71 of the fourth preferred embodiment of the present invention is applied to the fan 72, and its features are as follows. When the spherical body 75 is provided in the recessed part 74 of each guide member 73, and the both ends of the rotating shaft 76 face two guide members 73, respectively, when the rotating shaft 76 moves, An end of the rotation shaft 76 may support the sphere 75 and allow it to rotate on the surface of the sphere 75. Alternatively, as shown in FIG. 12, the spherical body 75 may be fitted to the end of the rotating shaft 76 so that the spherical body 75 of the rotating body is supported by the recess 74 of the guide member 73. In view of the above-mentioned features, each of the guide members has an effect of guiding and correcting the rotating shaft.

Referring to Fig. 13, the magnetic levitation rotation module 78 of the fifth preferred embodiment provided by the present invention is applied to the fan 79, and its features are as follows. Several stops 81 are provided in the first frame 80, and the conductive coils 82 of the magnetic levitation rotation module 78 are fitted to each alignment device through the circuit board 83. This makes the process of fitting the magnetic levitation rotation module 78 and the first frame 80 faster and easier.

In addition, in order to further increase the operation of the magnetic levitation rotation module and further reduce the frictional force, FIG. 14 shows a state in which the magnetic levitation rotation module 85 of the sixth preferred embodiment of the present invention is applied to the fan 86. The main construction is generally the same as in the first embodiment, but is characterized in that two bearings 89 are provided between the actuating member 87 and the rotating shaft 88 of the magnetic levitation rotary module 85. When the actuating member 87 rotates under the induced magnetic force of the coil 90, the actuating member 87 can not only rotate about the axis of rotation 88, but also the bearing 89 of the axis of rotation 88. The speed can be slower than the speed of the operating member 87, thereby reducing the friction and action forces that can occur between the two delivery members 91 of the rotating shaft 88, thereby further increasing the rotational speed of the operating member 87. Increase the service life. As shown in Fig. 15, the rotating shaft 88 may also provide several bearings 89 between the actuating member 87 and each guiding member 91 to achieve the effect of increasing the rotational speed as described above.

According to the magnetic levitation rotation module and the application of the present invention, it can operate at a high rotational speed.

Claims (19)

In the magnetic levitation rotating module, Two guide members which are installed at a distance from each other, and one guide member moves to face the other guide member to change the distance from each other, A rotation shaft provided between the two guide members, each end of which is directed toward the two guide members, A magnetic member provided on the rotation shaft, and A conductive coil is installed coaxially on the outer side of the rotating shaft and generates a magnetic force to induce the magnetic member so that the rotating shaft floats between the two guide members, and the magnetic member rotates about the rotating shaft. Maglev rotating module comprising a. The method of claim 1, At least one of the guide members has an annular wall extending from the surface, a space is formed inside the annular wall, and one end of the rotating shaft is located inside the space, whereby the annular wall surrounds the outer circumference of the rotating shaft. Magnetic levitation rotating module, characterized in that cheap The method of claim 1, At least one guide member has a convex portion, one end of the rotating shaft has a concave portion, the concave portion facing the convex portion, characterized in that the magnetic levitation rotation module. The method of claim 1, At least one end of the rotating shaft has a spherical body, the rotating shaft is supported on the guide member through the spherical body, the magnetic levitation rotation module. The method of claim 1, Maglev rotator module, characterized in that the distance between the two guide member is greater than the length of the rotation axis. The method of claim 1, The magnetic levitation rotary module further comprises a magnetic levitation bearing provided between the rotating shaft and the conductive coil. The method of claim 1, An actuating member is installed on the rotating shaft, and the magnetic member is mounted on the actuating member. The method of claim 7, wherein The operating member has a base, the base has at least one hole, the base is provided with a round sidewall, the rotary shaft is installed through the base, one end of the rotary shaft is The magnetic levitation rotation module, characterized in that it protrudes on one side of the other end is extended into the side wall, the magnetic member is installed on the inner peripheral surface of the side wall, the outer peripheral surface of the side wall has several wings. The method of claim 1, Maglev rotating module, characterized in that at least one bearing is installed between the operating member and the rotating shaft. The method of claim 1, The magnetic force center line of the magnetic member is aligned with the magnetic center line of the conductive coil, and after the magnetic force generated after electricity is conducted to the conductive coil and the magnetic force of the magnetic member are mutually induced, the rotation axis is between the two guide members. Magnetic levitation rotating module, characterized in that the floating in. In the fan, A magnetic levitation rotation module according to claim 1 is provided between the first frame and the second frame, and the two guiding members of the magnetic levitation rotation module are each a first frame. And a fan provided in the second frame. The method of claim 11, The first frame has an adjustment member and a position fixing member separately, the first guiding member of the magnetic levitation rotating module is provided on the position fixing member, and the adjustment member is installed on the position fixing member so as to be movable. And a fan connected with the guide member. In the magnetic levitation rotating module, Two delivery members spaced apart from each other, A rotation shaft provided between two guide members, each end of which is directed toward the two guide members, At least one bearing installed on the rotating shaft, An operation member installed on the bearings, A magnetic member provided on the operating member, and A conductive coil is installed coaxially to the outer side of the rotating shaft, and generates a magnetic force to induce the magnetic member, thereby causing the rotating shaft to float between the two guide members and further causing the operating member to rotate about the rotating shaft. Maglev rotating module comprising a. The method of claim 13, At least one of the guiding members has an annular wall extending from the surface, and a space is formed inside the annular wall, and one end of the rotating shaft is located inside the space, so that the annular wall surrounds the outer circumference of the rotating shaft. Maglev rotary module, characterized in that. The method of claim 13, At least one guide member has a convex portion, one end of the rotating shaft has a concave portion, the concave portion facing the convex portion, characterized in that the magnetic levitation rotation module. The method of claim 13, Maglev rotator module, characterized in that the distance between the two guide member is greater than the length of the rotation axis. The method of claim 13, The operating member has a base, the base has at least one hole, the base is provided with a round sidewall, the rotary shaft is installed through the base, one end of the rotary shaft is Magnetic levitation rotating module, characterized in that it protrudes to one side of the base, the other end is extended into the side wall, the magnetic member is installed on the inner peripheral surface of the side wall, the outer peripheral surface of the side wall has several wings . The method of claim 13, The magnetic force of the magnetic member is matched to the magnetic force of the conductive coil, and after the centerline of the magnetic force generated after electricity is conducted to the conductive coil and the centerline of the magnetic force of the magnetic member are guided to each other, the two shafts are guided to each other. The magnetic levitation rotation module, characterized in that floating between the members. The method of claim 13, And a guiding member and a position fixing member, wherein the guiding member is installed in the position fixing member, and the adjustment member is installed in the position fixing member so as to be movable and is connected to the guiding member. Maglev rotating module.

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