Vertical VANE pivotable, magnetically levitated horizontal axis rotor, axial FLUX wind turbine

Abstract

The present invention related to magnetically levitated horizontal axis rotor, axial flux wind turbine that comprising air core coil rotor shaft and permanent magnets coupled on stators. It uses magnetic levitation to the air core coil rotor, eliminating rotor rotational contact friction. The present invention is generating electrical power from very low wind speed upward.

Description

[0001] VERTICAL VANE PIVOTABLE, MAGNETICALLY LEVITATED HORIZONTAL AXIS ROTOR, AXIAL FLUX WIND TURBINE

[0002] FIELD OF INVENTION

[0003] The present invention related to magnetically levitated horizontal axis rotor, axial flux wind turbine.

[0004] BACKGROUND ARTS

[0005] Patent WO 2023113590 (FIG. 1, FIG. 2, FIG. 3) discloses a “magnetically levitated horizontal axis rotor, axial flux wind turbine”. It comprises, briefly, an air-core-coils-rotor which is magnetically levitated horizontally by the mounted magnets on front and back portion of a support frame assembly. The support frame assembly also has permanent-magnet-stators mounted, having an air gap formed in between the two stators for magnetic levitation to horizontal axis rotor to rotate in between the air gap. During rotating of rotor by the wind force, the air-core-coils of horizontal axis rotor cut through alternating axial magnetic flux induced by the two permanent-magnet-stators, generate alternating current. The generated alternating current is then connected to external circuit board via electrically conductive members to external circuit board of devices. Rectifier is required inside the external circuit board so that alternating current is rectified into direct current, before use in devices.

[0006] The disclosed prior embodiment has magnetically levitated rotor that capture wind power as low as 1.2 m / s upward, if the wind direction W is parallel to the rotor axis X. However, the support frame assembly of the disclosed prior embodiment is at a fixed-position to provide magnetically levitation to the horizontal axis rotor. As such, the magnetically levitated horizontal axis rotor position is also fixed toward one direction only. The disclosed prior embodiment generates power from wind at maximum rate only at time when the wind direction W to the fixed-direction rotor is parallel to the rotor axis X. At places whereby wind direction W keeps changing, such as atmospheric wind, the disclosed prior embodiment generates power from wind far lower than its maximum rate, when the wind direction W is not parallel to the rotor axis X.

[0007] SUMMARY OF THE INVENTION

[0008] The following summary is provided to facilitate an understanding of some of the innovative features unique to the embodiments present and is not intended to be a full description. A full appreciation of the various aspects of the embodiments can be gained by taking the entire specifications, claims, drawings, and abstract as a whole. It is the primary object of the present invention to couple in rectifier into rotor member of the “magnetically levitated horizontal axis rotor, axial flux wind turbine” as disclosed in patent WO 2023113590, whereby the rectifier converts alternating current into direct current within the rotor. The direct current is then connected from rotor to externa circuit board of devices. As such, rectifier on external circuit board for devices is not necessary. Additionally, multiple units of axial flux wind turbines with direct current output of the present invention can be connected in parallel array manner with simplify wiring, enable scaling-up the power generation for devices that require high power. Existing prior embodiment as disclosed in patent WO 2023113590 still possible to be parallel array arranged into multiple units, however, it involves complex wirings, as each pair of alternating current wires connected from the prior embodiment need to go through each rectifying circuit, only then the output direct current wires are connected in parallel array manner.

[0009] It is another primary object of the present invention to provide an improved design to the “magnetically levitated horizontal axis rotor, axial flux wind turbine” as disclosed in patent WO 2023113590, to have vertical vane pivotable mechanism coupling-in. The vertical vane pivotable mechanism and components comprises pivot base members, pivot pin members and tail vane member mounted on the inner pivotable support frame assembly, as well as an outer rim fixed support frame assembly with pivot pin support mounted. The outer rim fixed support frame assembly provides pivotal mounting to the inner pivotable support frame assembly. The present invention capable of orienting the magnetically levitated horizontal axis rotor towards wind direction W, by the wind force applied to the vane, so that it generates power from wind at maximum rate at all time, at places whereby wind direction W keeps changing, such as atmospheric wind.

[0010] BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will become more fully understood from the subsequent detailed descriptions and accompanying drawings, which are given by way of illustration only, and thus are not limitative of the present invention, and wherein;

[0012] FIG. 1 is a perspective view of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” as disclosed in patent WO 2023113590;

[0013] FIG. 2 is an exploded view of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” as disclosed in patent WO 2023113590;

[0014] FIG. 3 is a cross-sectional view of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” as disclosed in patent WO 2023113590;

[0015] FIG. 4 is a perspective view of a rotor shaft 110 with the electrically-conductive and ferromagnetic tapered tip members 112 mounted on both end portions of the rotor shaft body 111, of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” as disclosed in patent WO 2023113590;

[0016] FIG. 5 is a perspective view of the air-core-coils rotor 140 of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” as disclosed in patent WO 2023113590;

[0017] FIG. 6 is a circuit diagram view of connection of conductive path from the coils 142 in series to the electrically-conductive and ferromagnetic tapered tip members 112 of the rotor, of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100 as disclosed in patent WO 2023113590;

[0018] FIG. 7 is a partial perspective view of a rotor shaft 110 magnetically levitated by the two electrically-conductive permanent magnets 153 mounted on the support frame assembly 150 of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” as disclosed in patent WO 2023113590;

[0019] FIG. 8 is a perspective view of air-core-coils with rectifier rotor 240 of a “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output” according to the preferred embodiment of the present invention;

[0020] FIG. 9 is the circuit diagram view of connection of air-core-coils 142 in series coupled with rectifier 241 in the air-core-coils with rectifier rotor 240 of a “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output” according to the preferred embodiment of the present invention;

[0021] FIG. 10 is a partial perspective view of a rotor shaft 110 magnetically levitated by the two electrically-conductive permanent magnets 153 mounted on the support frame assembly 150 of a “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output” according to the preferred embodiment of the present invention;

[0022] FIG. 11 is a perspective view of a “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 200” comprising axial wind turbine 100 improved with rectifier 241 coupled into rotor, according to the preferred embodiment of the present invention;

[0023] FIG. 11A shows an example of multiple “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 200” arranged in parallel array manner with simplify wiring;

[0024] FIG. 12 is a perspective view of a semi-finished “magnetically levitated horizontal axis rotor, axial flux wind turbine, with alternating current [AC] output 300” comprising axial wind turbine 100 improved with coupling with two electrically-non-conductive pivot base members 311, two electrically-conductive pivot pin members 312, and a vane member 321, according to the preferred embodiment of the present invention;

[0025] FIG. 13 is a perspective view of a semi-finished “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 400” comprising axial wind turbine 100 improved with rectifier 241 coupled into rotor, and coupling with two electrically-non-conductive pivot base members 311, two electrically-conductive pivot pin members 312, and a vane member 321, according to the preferred embodiment of the present invention;

[0026] FIG. 14 is a perspective view of a “vertical vane pivotable, magnetically levitated horizontal axis rotor, axial flux wind turbine with alternating current [AC] output 500” comprising a semifinished axial flux wind turbine 300 that pivotally mounted on the electrically-conductive pivot pin support members 511 that are mounted on the outer rim fixed-position support frame 521 and have two wires 531 for external circuit board connection, according to the preferred embodiment of the present invention;

[0027] FIG. 15 is a perspective view of a “vertical vane pivotable, magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 600” comprising a semi-finished axial flux wind turbine 400 that pivotally mounted on the electrically-conductive pivot pin support members 511 that are mounted on the outer rim fixed-position support frame 521, and have two wires 531 connected to external circuit board, according to the preferred embodiment of the present invention;

[0028] FIG. 16 shows an example of multiple “vertical vane pivotable, magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 600” arranged in parallel array manner with simplify wiring.

[0029] DETAILED DESCRIPTION OF THE INVENTION

[0030] The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided, so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The methods and examples provided herein are illustrative only, and not intended to be limiting.

[0032] FIG. 1, FIG. 2, FIG. 3 show a perspective view, an exploded view, a cross-sectional view respectively of a “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” according to the prior embodiment as disclosed in patent WO 2023113590.

[0033] The prior embodiment 100 comprising a rotor shaft 110, two permanent magnet stators 120, an air-core-coils rotor 140 with a plurality of blade 145 coupled with, a support frame assembly 150 and two wires 155. FIG. 4 shows a rotor shaft 110 according to the prior embodiment 100 as disclosed in patent WO 2023113590. The rotor shaft 110 comprising an electrically-non-conductive rotor shaft body 111 and electrically-conductive and ferromagnetic tapered tip member 112 on both end portions. The shape of the electrically-conductive and ferromagnetic tapered tip member 112 on both end portions of the rotor shaft 110 may be cone, multi -angular pyramid, sphere, hemisphere or combinations thereof without limitation herein.

[0034] FIG. 5 shows an air-core-coils rotor 140 according to the prior embodiment as disclosed in patent WO 2023113590. The air-core-coils rotor 140 comprising a rotor shaft 110, a rotor plate substrate 141, a plurality of blade 145 coupled to the outer rim of rotor plate substrate 141, and a plurality of air-core-coil 142 circumferentially mounted on the rotor plate substrate 141. The plurality of air-core-coil 142 are connected in series. One end lead of the air-core-coil 142 of the series connected air-core-coils 142 is coupled on the electrically-conductive and ferromagnetic tapered tip member 112, wherein the other end lead of the air-core-coil 142 of the series connected air-core-coil 142 is coupled on the other electrically-conductive and ferromagnetic tapered tip member 112 (not shown in FIG 5). The series connection of air-core-coil 142 to both electrically-conductive and ferromagnetic tapered tip member 112 can be understood by viewing on circuit diagram FIG. 6.

[0035] The electrical connections from the said electrically-conductive and ferromagnetic tapered tip members 112 of rotor shaft 110 is then further electrically connected to both electrically-conductive permanent magnet 153 on both side of the support frame assembly 150, as can be seen in FIG. 3. The electrical connections from the said electrically-conductive permanent magnets 153 is then further electrically connected to external circuit for direct current [DC] rectifying and / or load via both wires 155. The air-core-coils rotor 140 is disposed in the air gap between the two permanent magnet stators 120.

[0036] In the prior embodiment 100 as disclosed in patent WO 2023113590, for example, each of the two permanent magnet stators 120 comprising a stator plate substrate 121 and a plurality of permanent magnet 122 circumferentially mounted thereon and disposed in N-S-N arrangement. One of the permanent magnet stators 120 is coupled on the windward side support frame member 151, the other permanent magnet stator 120 is coupled on the leeward side support frame member 152. The two permanent magnet stators 120 are spaced apart from one another by an air gap, wherein the north pole of a permanent magnet 122 on one of the permanent magnet stators 120 is facing a south pole of a permanent magnet 122 on the other permanent magnet stator 120 and vice versa.

[0037] FIG. 1 and FIG. 3 show a support frame assembly 150 that providing magnetic levitation to the rotor shaft 110 and fixing two permanent magnet stators 120, according to the prior embodiment 100 of the disclosed patent WO 2023113590. The support frame assembly 150 comprising a windward side support frame member 151 with an electrically-conductive permanent magnet 153 mounted and a leeward side support frame member 152 with an electrically-conductive permanent magnet 153 mounted. The electrically-conductive and ferromagnetic tapered tip members 112 on both end portions of the rotor shaft 110 are attracted to the electrically-conductive permanent magnets 153 mounted on both windward side and leeward side support frame member 151, 152 as illustrated in FIG. 3 and FIG. 7, with a single point of contact. The electrically-conductive and ferromagnetic tapered tip member 112 must coincide with the axis of the two electrically-conductive permanent magnets 153 mounted on windward side and leeward side support frame members 151, 152, to achieve magnetic levitation to the rotor shaft 110 with a near zero rotational friction value. With a near zero rotational friction value, a very low starting force produced by a very low wind speed, such as 1.2m / s, is sufficient to rotate the rotor shaft 110 that coupled with an air-core-coils rotor 140 and a plurality of blade 145 and start to generate electrical power.

[0038] FIG. 1, FIG. 2, FIG. 3 show a nose cone 160 may be coupled on the windward side support frame member 151, providing a streamline wind directly flow through blades, instead of hitting on stator plate substrate 121 area which may cause turbulent and affecting performance, if without nose cone in used.

[0039] A plurality of fasteners 154 may be used for fastening both windward side and leeward side support frame member 151, 152 together as a support frame assembly 150. However, the fixing of the support frame assembly 150 from both windward side support frame member 151 and leeward side support frame member 152 can be also other methods of fixing, instead of fastening with a plurality of fasteners.

[0040] As disclosed in patent WO 2023113590, the prior embodiment 100 generates alternating current [AC] by the magnetically levitated horizontal axis, axial flux rotor. The alternating current [AC] is then connected to external circuit board. Rectifier is required in the external circuit board to convert alternating current [AC] to direct current [DC], before it can be used in device.

[0041] The present invention is to have a rectifier 241 coupled into the air-core-coils rotor 140, as disclosed in patent WO 2023113590. The air-core-coils with rectifier coupled-in rotor 240, as shown in FIG. 8, first generates alternating current [AC] through axial flux induction. The generated alternating current [AC] is then converted into direct current [DC] by the rectifier 241. The direct current [DC] is then connected from air-core-coils with rectifier rotor 240 to external circuit board for direct use by the device, without the need of having rectifier coupled into circuit board of the device.

[0042] FIG. 8 shows an air-core-coils with rectifier rotor 240 according to the preferred embodiment of the present inventions. The air-core-coils with rectifier rotor 240 comprising a rotor shaft 110, a rotor plate substrate 141, a plurality of blade 145 coupled to the outer rim of rotor plate substrate 141, a plurality of air-core-coil 142 circumferentially mounted on the rotor plate substrate 141, and a rectifier 241 coupled into rotor plate substrate 141. The rotor shaft 110 comprising an electrically-non- conductive rotor shaft body 111 and electrically-conductive and ferromagnetic tapered tip member 112 on both end portions. The plurality of air-core-coil 142 are connected in series. Both end leads of the series connected air-core-coils 142 are connected to the AC input terminals of rectifier 241, wherein the positive output terminal of rectifier 241 is electrically connected to the electrically-conductive and ferromagnetic tapered tip member 112 on one end portions of the rotor shaft 110, wherein the negative output terminal of rectifier 241 is electrically connected to the electrically-conductive and ferromagnetic tapered tip member 112 on the other end portion of the rotor shaft 110, as can be visualized by FIG. 9.

[0043] The electrically-conductive and ferromagnetic tapered tip members 112 on both end portions of the rotor shaft 110 are attracted to the electrically-conductive permanent magnets 153 mounted on both windward side and leeward side support frame member 151, 152 as illustrated in FIG. 10.

[0044] FIG. 11 shows the perspective view of “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 200” of the preferred embodiment of the present invention. The preferred embodiment 200 comprising two permanent magnet stators 120, a support frame assembly 150, two wires 155 and an air-core-coils with rectifier rotor 240. The air-core-coils with rectifier rotor 240 comprising a rotor shaft 110, a rotor plate substrate 141, a plurality of blade 145 coupled to the outer rim of rotor plate substrate 141, a plurality of air-core-coil 142 circumferentially mounted on the rotor plate substrate 141, and a rectifier 241 coupled on the rotor plate substrate 141.

[0045] Each of the two permanent magnet stators 120 comprising a stator plate substrate 121 and a plurality of permanent magnet 122 circumferentially mounted thereon and disposed in N-S-N arrangement. One of the permanent magnet stators 120 is coupled on the windward side support frame member 151, the other permanent magnet stator 120 is coupled on the leeward side support frame member 152. The two permanent magnet stators 120 are spaced apart from one another by an air gap, wherein the north pole of a permanent magnet 122 on one of the permanent magnet stators 120 is facing a south pole of a permanent magnet 122 on the other permanent magnet stator 120 and vice versa.

[0046] The air-core-coils with rectifier rotor 240 is disposed in the air gap between the two permanent magnet stators 120.

[0047] The support frame assembly 150 comprising a windward side support frame member 151 with an electrically-conductive permanent magnet 153 mounted and a leeward side support frame member

[0048] 152 with an electrically-conductive permanent magnet 153 mounted. The electrically-conductive permanent magnets 153 provide magnetically levitating support to rotor shaft 110.

[0049] One end of the first wire 155 is connected to the electrically-conductive permanent magnet

[0050] 153 on the windward side support frame member 151, while the other end of the first wire 155 is disposed for connecting to external circuit, wherein one end of the second wire 155 is connected to the electrically-conductive permanent magnet 153 on the leeward side support frame member 152, while the other end of the second wire 155 is disposed for connecting to external circuit. The preferred embodiment of the present invention “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 200” make a novel improvement on prior embodiment as disclosed in patent WO 2023113590 “magnetically levitated horizontal axis rotor, axial flux wind turbine 100” by coupling in rectifier on the air-core-coils rotor, so that the generated alternating current [AC] is converted into direct current [DC] internally within the air-corecoils with rectifier rotor 240, and connects direct current [DC] to external circuit board for direct use, without the need of having rectifier built inside external circuit board. Furthermore, multiple preferred embodiment 200 of the present invention can be connected in parallel array manner with simplify wiring, due to no further rectifying steps in between, enable scaling-up the power generation for devices that require high power. The parallel array of multiple units of preferred embodiment 200 can be visualized through FIG. 11 A.

[0051] Refer to the prior embodiment 100 as disclosed in patent WO 2023113590, it is clearly observed that support frame assembly 150 is fixed in its position to support magnetically levitation to the air-core-coils rotor 140. Subsequently, the air-core-coils rotor 140 is also fixed in its position, not pivotable to orient itself toward wind direction W. As such, the prior embodiment 100 generates power from wind at maximum rate only with condition that the wind direction W is parallel to the fixed-position rotor axis X, as shown in FIG. 1. If the wind direction W is not parallel to the fixed- position rotor axis X, such as atmospheric wind that keep changes direction, the prior embodiment 100 generates power from wind much lesser from its maximum rate.

[0052] It is another object of the present invention to provide vertical vane pivotable design for the air-core-coils rotor, so that the air-core-coils rotor orients itself toward wind direction W constantly.

[0053] FIG. 12 shows a semi-finished perspective view of a semi-finished “magnetically levitated horizontal axis rotor, axial flux wind turbine, with alternating current [AC] output 300” of the preferred embodiment of the present invention. The preferred embodiment 300 comprising an axial flux wind turbine 100, two electrically-non-conductive pivot base members 311, two electrically- conductive pivot pin members 312, a vane member 321. The electrically-non-conductive pivot base members 311 are mounted on top edge and bottom edge of the support frame assembly 150 of the axial flux wind turbine 100. The electrically-non-conductive pivot base members 311 provide mounting support to the electrically-conductive pivot pin members 312 and to the vane member 321.

[0054] The end portion shape of the electrically-conductive pivot pin member 312 may be either tapered, cone, multi-angular pyramid, sphere, hemisphere or combinations thereof without limitation herein, as long as it forms a single point of contact to the horizontal flat surface of the electrically- conductive pivot pin support members 511 that are mounted on the outer rim fixed-position support frame 521, as shown in FIG. 14. Single point of contact between electrically-conductive pivot pin member 312 and electrically-conductive pivot pin support members 511 reduces pivoting friction, so that vertical vane pivoting of the semi-finished axial flux wind turbine 300 is started from a very low wind speed. One end of the first wire 155 is connected to the electrically-conductive permanent magnet 153 on the windward side support frame member 151, while the other end of the first wire 155 is connected to the electrically-conductive pivot pin member 312 on top edge of support frame assembly 150, wherein one end of the second wire 155 is connected to the electrically-conductive permanent magnet 153 on the leeward side support frame member 152, while the other end of the second wire 155 is connected to the electrically-conductive pivot pin member 312 on bottom edge of support frame assembly 150, which cannot be viewed on FIG. 12 as it is on the back side of perspective view. The alternating current [AC] ~ sign on FIG. 12 on top and bottom of the electrically-conductive pivot pin member 312 indicates alternating current [AC] output from air-core-coils rotor 140, which has no rectifier coupled in.

[0055] FIG. 13 shows perspective view of a semi-finished “magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 400” of the preferred embodiment of the present invention. The preferred embodiment 400 comprising an axial flux wind turbine 200, two electrically-non-conductive pivot base members 311, two electrically-conductive pivot pin members 312, a vane member 321. The electrically-non-conductive pivot base members 311 are mounted on top edge and bottom edge of the support frame assembly 150 of the axial flux wind turbine 200. The electrically-non-conductive pivot base members 311 provide mounting support to the electrically- conductive pivot pin members 312 and to the vane member 321.

[0056] The end portion shape of the electrically-conductive pivot pin member 312 may be either tapered, cone, multi-angular pyramid, sphere, hemisphere or combinations thereof without limitation herein, as long as it forms single point of contact to the horizontal flat surface of the electrically- conductive pivot pin support member 511 that are mounted on the outer rim fixed-position support frame 521, as shown in FIG. 15. Single point of contact between electrically-conductive pivot pin member 312 and electrically-conductive pivot pin support members 511 reduces pivoting friction, so that vertical vane pivoting of the semi-finished axial flux wind turbine 200 is started from a very low wind speed.

[0057] One end of the first wire 155 is connected to the electrically-conductive permanent magnet 153 on the windward side support frame member 151, while the other end of the first wire 155 is connected to the electrically-conductive pivot pin member 312 on top edge of support frame assembly 150, wherein one end of the second wire 155 is connected to the electrically-conductive permanent magnet 153 on the leeward side support frame member 152, while the other end of the second wire 155 is connected to the electrically-conductive pivot pin member 312 on bottom edge of support frame assembly 150, which cannot be viewed on FIG. 13 as it is on the back side of perspective view.

[0058] The direct current [DC] + - sign on FIG. 13 on top and bottom electrically-conductive pivot pin member 312 indicates direct current [DC] output from air-core-coils with rectifier rotor 240.

[0059] FIG. 14 shows a “vertical vane pivotable, magnetically levitated horizontal axis rotor, axial flux wind turbine, with alternating current [AC] output 500” comprising a semi-finished axial flux wind turbine 300, an outer rim fixed-position support frame 521, two electrically-conductive pivot pin support members 511, and two wires 531.

[0060] The two electrically-conductive pivot pin support member 511 are mounted on top edge and bottom edge of the fixed-position support frame 521, provides pivotal support to the electrically-conductive pivot pin members 312, so that the semi-finished axial flux wind turbine 300 is pivoting around pivoting axis Y, and to orient rotor axis X parallel to wind direction W, upon having sufficient wind force imposed to the vane member 321. In the prototype of the preferred embodiment 500 of the present invention, vertical vane pivoting starts at 0.8 m / s wind speed, which is far lower than the 1.2 m / s wind speed that start to rotate the air-core-coils rotor 140. With the condition that vertical vane pivoting of the semi-finished axial flux wind turbine 300 activate earlier than start rotating of air-core coils rotor 140, the preferred embodiment 500 of the present invention generates power from wind at maximum rate constantly, from 1.2 m / s wind speed upwards. The alternating current [AC] connected from electrically-conductive pivot pin members 312 to the electrically-conductive pivot pin support members 511, and further connected out to external circuit board via the two wire 531.

[0061] FIG. 15 shows a perspective view of a “vertical vane pivotable, magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output 600” comprising a semifinished axial flux wind turbine 400, an outer rim fixed-position support frame 521, two electrically- conductive pivot pin support members 511, and two wires 531. The two electrically-conductive pivot pin support member 511 are mounted on top edge and bottom edge of the fixed-position support frame 521, provides pivotal support to the electrically-conductive pivot pin members 312, so that the semifinished axial flux wind turbine 400 is pivoting around pivoting axis Y, and to orient rotor axis X parallel to wind direction W, upon having sufficient wind force imposed to the vane member 321. In the prototype of the preferred embodiment 600 of the present invention, vertical vane pivoting starts at 0.8 m / s wind speed, which is far lower than the 1.2 m / s wind speed that start to rotate the air-core-coils with rectifier rotor 240. With the condition that vertical vane pivoting of the semi-finished axial flux wind turbine 400 activate earlier than start rotating of rotor 240, the preferred embodiment 600 of the present invention generates power from wind at maximum rate constantly, from 1.2 m / s wind speed upwards. The direct current [DC] connected from electrically-conductive pivot pin members 312 to the electrically-conductive pivot pin support members 511, and further connected out to external circuit board via the two wire 531. The preferred embodiment 600 of the present invention has an additional advantage in which multiple units of preferred embodiment 600 can be connected in parallel array manner with simplify wiring, due to no further rectifying steps in between, enable scaling-up the power generation for devices that require high power. The parallel array of multiple units of preferred embodiment 600 can be visualized through FIG. 16.

[0062] Finally, the forgoing examples are not intended to limit the scope of the inventions disclosed herein, which is set forth in the following claims. In particular, various equivalents and substitutions will be recognized by those of ordinary skill in the art in view of the foregoing disclosure, and these are contemplated to be within the scope of the invention disclosed herein.

Claims

What is claim is:

1. A magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current[DC] output (200) comprising: a rotor shaft (110) comprising an electrically-non-conductive rotor shaft body (111) and two electrically-conductive and ferromagnetic tapered tip members (112) on both end portions of the rotor shaft body (111), two permanent magnet stators (120), wherein each permanent magnet stator (120) comprising a stator plate substrate (121) with a plurality of permanent magnet (122) circumferentially mounted, wherein one permanent magnet stator (120) is coupled on the windward side support frame member (151), wherein the other permanent magnet stator (120) is coupled on the leeward side support frame member (152), wherein the two permanent magnet stators (120) are spaced apart from one another by an air gap, a support frame assembly (150) comprising a windward side support frame member (151) with an electrically-conductive permanent magnet (153) mounted therein and a leeward side support frame member (152) with an electrically-conductive permanent magnet (153) mounted therein, wherein the electrically-conductive permanent magnets (153) mounted on both windward side and leeward side support frame member (151, 152) are aligned on the same axis, provides magnetic levitation to the rotor shaft (110) by mean of ferromagnetic attraction formed by the electrically-conductive permanent magnets (153) to the electrically- conductive and ferromagnetic tapered tip member (112) on both end portions of the rotor shaft (HO),One end of the first wire (155) is connected to the electrically-conductive permanent magnet (153) mounted on the windward side support frame member (151), while the other end of the first wire (155) is disposed for connecting to external circuit and / or load, wherein one end of the second wire (155) is connected to the electrically-conductive permanent magnet (153) mounted on the leeward side support frame member (152), while the other end of the second wire (155) is disposed for connecting to external circuit and / or load, characterized in that an air-core-coils with rectifier rotor (240) comprising a rotor shaft (110), a rotor plate substrate (141), a plurality of blade (145) coupled to the outer edge of the rotor plate substrate (141), a plurality of air-core-coil (142) circumferentially mounted and series connected on rotor platesubstrate (141), a rectifier (241) coupled on rotor plate substrate (141), wherein the air-corecoils with rectifier rotor (240) is disposed in the air gap between the two permanent magnet stators (120), wherein both end leads of series connected air-core-coil (142) are connected to both AC input terminals of rectifier (241), wherein the positive output terminal of rectifier (241) is electrically connected to the electrically-conductive and ferromagnetic tapered tip member (112) on one end portions of the rotor shaft (110), wherein the negative output terminal of rectifier (241) is electrically connected to the other electrically- conductive and ferromagnetic tapered tip member (112) on the other end portion of the rotor shaft (110).

2. A vertical vane pivotable, magnetically levitated horizontal axis rotor, axial flux wind turbine, with alternating current [AC] output (500) comprising: a rotor shaft (110) comprising an electrically-non-conductive rotor shaft body (111) and two electrically-conductive and ferromagnetic tapered tip members (112) on both end portions of the rotor shaft body (111), two permanent magnet stators (120), wherein each permanent magnet stator (120) comprising a stator plate substrate (121) with a plurality of permanent magnet (122) circumferentially mounted, wherein one permanent magnet stator (120) is coupled on the windward side support frame member (151), wherein the other permanent magnet stator (120) is coupled on the leeward side support frame member (152), wherein the two permanent magnet stators (120) are spaced apart from one another by an air gap, an air-core-coils rotor (140) comprising a rotor shaft (110), a rotor plate substrate (141), a plurality of blade (145) coupled to the outer rim of rotor plate substrate (141), a plurality of air-core-coil (142) circumferentially mounted and series connected on rotor plate substrate (141), wherein one end lead of series connected air-core-coil (142) is connected to one of the electrically-conductive and ferromagnetic tapered tip member (112) at one end portion of the rotor shaft (110), wherein the other end lead of series connected air-core-coil (142) is connected to the other electrically-conductive and ferromagnetic tapered tip member (112) on the other end portion of the rotor shaft (110), wherein the air-core-coils rotor (140) is disposed in the air gap between the two permanent magnet stators (120), a support frame assembly (150) comprising a windward side support frame member (151) with an electrically-conductive permanent magnet (153) mounted therein and a leeward side support frame member (152) with an electrically-conductive permanent magnet (153)mounted therein, wherein the electrically-conductive permanent magnets (153) mounted on both windward side and leeward side support frame member (151, 152) are aligned on the same axis, providing magnetic levitation to the rotor shaft (110) by mean of ferromagnetic attraction formed by the electrically-conductive permanent magnets (153) to the electrically- conductive and ferromagnetic tapered tip member (112) on both end portions of the rotor shaft (HO), characterized in that two electrically-non-conductive pivot base members (311) are mounted on top edge and bottom edge of the support frame assembly (150), providing mounting support to two electrically-conductive pivot pin members (312) on top edge and bottom edge, and to a vane member (321), one end of the first wire (155) is connected to the electrically-conductive permanent magnet (153) mounted on windward side support frame assembly (151), while the other end of the first wire (155) is connected to electrically-conductive pivot pin member (312) on top edge of the support frame assembly (150), one end of the second wire (155) is connected to the electrically-conductive permanent magnet (153) mounted on leeward side support frame assembly (152), while the other end of the second wire (155) is connected to electrically- conductive pivot pin member (312) on bottom edge of the support frame assembly (150), an outer rim fixed-position support frame (521) with two electrically-conductive pivot pin supports members (511) mounted on top edge and bottom edge, wherein the two electrically- conductive pivot pin support members (511) provide pivotal support to the electrically- conductive pivot pin members (312), one end of the first wire (531) is connected to the electrically-conductive pivot pin support member (511) on top edge of outer rim fixed-position support frame (521), while the other end of the first wire (531) is disposed for connecting to external circuit and / or load, wherein one end of the second wire (531) is connected to the electrically-conductive pivot pin support member (511) on bottom edge of outer rim fixed-position support frame (521), while the other end of the second wire (531) is disposed for connecting to external circuit and / or load.

3. A vertical vane pivotable, magnetically levitated horizontal axis rotor, axial flux wind turbine, with direct current [DC] output (600) comprising:a rotor shaft (110) comprising an electrically-non-conductive rotor shaft body (111) and two electrically-conductive and ferromagnetic tapered tip members (112) on both end portions of the rotor shaft body (111), two permanent magnet stators (120), wherein each permanent magnet stator (120) comprising a stator plate substrate (121) with a plurality of permanent magnet (122) circumferentially mounted, wherein one permanent magnet stator (120) is coupled on the windward side support frame member (151), wherein the other permanent magnet stator (120) is coupled on the leeward side support frame member (152), wherein the two permanent magnet stators (120) are spaced apart from one another by an air gap, a support frame assembly (150) comprising a windward side support frame member (151) with an electrically-conductive permanent magnet (153) mounted therein and a leeward side support frame member (152) with an electrically-conductive permanent magnet (153) mounted therein, wherein the electrically-conductive permanent magnets (153) mounted on both windward side and leeward side support frame member (151, 152) are aligned on the same axis, providing magnetic levitation to the rotor shaft (110) by mean of ferromagnetic attraction formed by the electrically-conductive permanent magnets (153) to the electrically- conductive and ferromagnetic tapered tip member (112) on both end portions of the rotor shaft (HO), characterized in that an air-core-coils with rectifier rotor (240) comprising a rotor shaft (110), a rotor plate substrate (141), a plurality of blade (145) coupled to the outer edge of the rotor plate substrate (141), a plurality of air-core-coil (142) circumferentially mounted and series connected on rotor plate substrate (141), a rectifier (241) coupled on rotor plate substrate (141), wherein the air-corecoils with rectifier rotor (240) is disposed in the air gap between the two permanent magnet stators (120), wherein both end leads of series connected air-core-coil (142) are connected to both AC input terminals of rectifier (241), wherein the positive output terminal of rectifier (241) is electrically connected to the electrically-conductive and ferromagnetic tapered tip member (112) on one end portions of the rotor shaft (110), wherein the negative output terminal of rectifier (241) is electrically connected to the other electrically-conductive and ferromagnetic tapered tip member (112) on the other end portion of the rotor shaft (110), two electrically-non-conductive pivot base members (311) are mounted on top edge and bottom edge of the support frame assembly (150), provides mounting support to twoelectrically-conductive pivot pin members (312) on top edge and bottom edge, and to a vane member (321), one end of the first wire (155) is connected to the electrically-conductive permanent magnet (153) mounted on windward side support frame assembly (151), while the other end of the first wire (155) is connected to electrically-conductive pivot pin member (312) on top edge of the support frame assembly (150), one end of the second wire (155) is connected to the electrically-conductive permanent magnet (153) mounted on leeward side support frame assembly (152), while the other end of the second wire (155) is connected to electrically- conductive pivot pin member (312) on bottom edge of the support frame assembly (150), an outer rim fixed-position support frame (521) with two electrically-conductive pivot pin supports members (511) mounted on top edge and bottom edge, wherein the two electrically- conductive pivot pin support members (511) provide pivotal support to the electrically- conductive pivot pin members (312), one end of the first wire (531) is connected to the electrically-conductive pivot pin support member (511) on top edge of outer rim fixed-position support frame (521), while the other end of the first wire (531) is disposed for connecting to external circuit and / or load, wherein one end of the second wire (531) is connected to the electrically-conductive pivot pin support member (511) on bottom edge of outer rim fixed-position support frame (521), while the other end of the second wire (531) is disposed for connecting to external circuit and / or load.

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