Coronary brushless motor apparatus and method

Abstract

The coronal brushless motor includes: a stator; the rotor comprises a cylindrical core body part, the cylindrical core body part comprises a plurality of first extension parts extending from a first end part of the cylindrical core body part and a plurality of second extension parts extending from a second end part of the cylindrical core body part; and a static wire disposed around the cylindrical core member to magnetize the cylindrical core member to generate a magnetic flux in an axial direction of the cylindrical core member; wherein the plurality of first extension portions and the plurality of second extension portions are configured to separate and guide the magnetic flux when the cylindrical core member is magnetized by the static coil wires, and to change a direction of the magnetic flux from an axial direction to a direction different from the axial direction.

Description

TECHNICAL FIELD

[0001] The present invention relates generally to electric motor devices, and more particularly to brushless electric motor devices and driving devices thereof. BACKGROUND

[0002] Brushless electric motors typically include a plurality of magnets attached to a rotor. As the magnets rotate during operation of the motor, care must be taken to ensure that they are securely attached to the rotor to prevent vibration or detachment from the rotor, for example, to counteract centrifugal forces that can be generated during high speed rotation of the rotor. Adhesives such as glue, dovetail interfaces, or outer rings are typically used to secure the magnets to the rotor.

[0003] However, over the life of the motor, the magnets attached to the rotor are subject to centrifugal forces as the rotor rotates. In addition, permanent magnets used in brushless electric motors are an expensive motor component.

[0004] Accordingly, there is a need for a solution that allows for electric motor designs to avoid attaching permanent magnets to the rotor, or to avoid the use of permanent magnets in brushless motor arrangements. SUMMARY

[0005] Improvements and advantages of embodiments of the present invention can include avoiding the use of expensive permanent magnets or avoiding the need for any additional magnet support.

[0006] Embodiments of the present invention can improve the technology of brushless electric motors by improving the precision in the handling of the brushless electric motor, as the magnetic field and flux can be adjustable depending on the shape of the rotor, for example, through the use of extensions that can extend radially or axially from the rotor core, and in the magnetization of the rotor core, the magnetization of the rotor core can be separated from a single south / north pole polarization into multiple north and south pole magnetizations.

[0007] Improvements and advantages of embodiments of the present invention can also include increasing the torque of the brushless electric motor, as by placing electromagnets on a stator that axially surrounds the rotor, the stator can have a greater radial diameter than stators known in the art, and can provide a greater surface area for the presence of magnets than the rotor, and thus the interaction of the magnetic field between the stator and the rotor can be more precisely controlled.

[0008] One embodiment can include a crown brushless motor, the crown brushless motor comprising: a stator; a rotor, the rotor comprising a cylindrical core component, the cylindrical core component comprising: a plurality of first extensions extending from a first end of the cylindrical core component, and a plurality of second extensions extending from a second end of the cylindrical core component; and a wire, such as a coil or coil wire, disposed about the cylindrical core component.

[0009] In some embodiments, the plurality of first extensions and the plurality of second extensions are configured to direct magnetic flux when the cylindrical core component is magnetized.

[0010] In some embodiments, the plurality of first extensions comprises a number of extensions selected from the group consisting of 2, 4, 6, 8, 12, 32, 36, and 100.

[0011] In some embodiments, the plurality of second extensions comprises a number of extensions selected from the group consisting of 2, 4, 6, 8, 12, 32, 36, and 100.

[0012] In some embodiments, the plurality of first extensions and the plurality of second extensions are u-shaped extensions.

[0013] In some embodiments, the wire is stationary relative to the cylindrical core component and is configured to apply a magnetic excitation to the cylindrical core component by induction.

[0014] In some embodiments, the cylindrical core component, the first extensions, and the second extensions are axially magnetizable.

[0015] In some embodiments, the axially magnetizable cylindrical core component, the first extensions, and the second extensions form a single permanent magnet.

[0016] In some embodiments, the axial magnetization of the cylindrical core component is split between the first extensions and the second extensions.

[0017] In some embodiments, the cylindrical core component is freely rotatable within a coil (e.g., a static coil) disposed about the cylindrical core component.

[0018] In some embodiments, the cylindrical core component is selected from a group consisting of a laminated core, a permanent magnetic material, a soft magnetic composite (SMC), or a combination thereof.

[0019] In some embodiments, the cylindrical core component, the first extensions, and the second extensions are selected from a group consisting of a laminated core, a permanent magnetic material, an SMC, or a combination thereof.

[0020] In some embodiments, the first extensions are evenly disposed along a circumference of the first end portion of the cylindrical core component.

[0021] In some embodiments, the second extensions are evenly disposed along a circumference of the second end portion of the cylindrical core component.

[0022] In some embodiments, the motor comprises openings on a rotor flange between the rotor and the stator, the openings configured to ventilate the rotor and the stator.

[0023] In some embodiments, the wire arrangement is mounted on the stator.

[0024] In some embodiments, the plurality of first extensions and the plurality of second extensions extend towards a central layer plane of the cylindrical core component.

[0025] In some embodiments, the plurality of first extensions and the plurality of second extensions extend outwardly towards a central layer plane of the cylindrical core component.

[0026] In some embodiments, the plurality of first extensions and the plurality of second extensions extend inwardly towards a central layer plane of the cylindrical core component.

[0027] In some embodiments, the plurality of first extensions comprises a first component coupled to a first end of the cylindrical core component, the first component comprising a first circular base and the plurality of first extensions extending from the first circular base.

[0028] In some embodiments, the plurality of second extensions comprises a second component coupled to a second end of the cylindrical core component, the second component comprising a second circular base and the plurality of second extensions extending from the second circular base.

[0029] In some embodiments, the first extensions and the second extensions are configured to direct a flow of magnetic flux from the first extensions to the second extensions.

[0030] In some embodiments, the magnetic flux is located outside of the cylindrical core component.

[0031] In some embodiments, the magnetic flux is located inside of the cylindrical core component.

[0032] In some embodiments, the plurality of first extensions and the plurality of second extensions are staggered.

[0033] In some embodiments, each extension of the first extensions and each extension of the second extensions are separated by a groove, the groove separating each extension into pairs of extensions.

[0034] In some embodiments, the groove is configured to redirect the magnetic flux from the rotor to the stator.

[0035] In some embodiments, an output of mechanical energy of the crown brushless motor is controlled by one or more of: a shape of the first extensions and the second extensions, a direction of magnetic flux between the first extensions and the second extensions, a stator polarity, an electrical energy applied to each stator electromagnet, a distance between the first extensions and the stator electromagnets, and a distance between the second extensions and the stator electromagnets.

[0036] In some embodiments, the stator comprises a plurality of electromagnets.

[0037] In some embodiments, the electromagnets are arranged radially along an axis of rotation of the rotor.

[0038] In some embodiments, multiple electromagnets are attached to the stator.

[0039] In some embodiments, each of the electromagnets in the stator surrounds a portion of the first extension and a portion of the second extension.

[0040] In some embodiments, each of the plurality of electromagnets is polarizable to generate a repulsive force between the magnetic fields of one or more electromagnets and the magnetic field of the rotor.

[0041] In some embodiments, each of the plurality of electromagnets is polarizable to generate an attractive force between the magnetic fields of one or more electromagnets and the magnetic field of the rotor.

[0042] In some embodiments, the stator is configured to adjust the torque and / or rotational speed of the cylindrical core component by activating one or more of a plurality of electromagnets.

[0043] In some embodiments, each of the electromagnets is configured to periodically change its polarity and may be configured to interact with the magnetic field of the rotor to cause the cylindrical core component to rotate about the axial axis of the cylindrical core component.

[0044] One embodiment may include a method of activating a crown brushless motor, wherein the crown brushless motor includes: a stator, a rotor, the stator including: a plurality of electromagnets arranged radially along a rotor axis; the rotor including: a cylindrical core component including: a plurality of first extensions extending from a first end of the cylindrical core component, and a plurality of second extensions extending from a second end of the cylindrical core component, wherein the plurality of first extensions and the plurality of second extensions are separated by grooves that divide each extension into an extension pair; and wires arranged around the cylindrical core component, comprising the steps of: a) magnetically activating coil wires to polarize the first and second extension pairs of the rotor; b) magnetically activating one or more electromagnets of the stator to generate magnetization, thereby generating a repulsive force between the one or more electromagnets and the first portion of the extension pair, thereby rotating the rotor.

[0045] In some embodiments, the method includes the step of: magnetically activating one or more electromagnets of the stator to generate magnetization, thereby creating an attractive force between the one or more electromagnets and a second portion of the extension pair.

[0046] These, additional and / or other aspects and / or advantages of the invention are set forth in the following detailed description; may be inferred from the detailed description; and / or may be learned through practice of the invention. Attached Figure Description

[0047] The subject matter of this invention is specifically pointed out and explicitly claimed at the end of the specification. However, the organizational structure and method of operation of this invention, as well as its objects, features, and advantages, are best understood by reading the accompanying drawings in conjunction with the following detailed description:

[0048] FIG. 1A A conventional brushless motor rotor known in the art is shown.

[0049] FIG. 1B A brushless rotor is shown, which has four existing magnet arrangements attached to the rotor shaft.

[0050] FIG. 2A Examples of multiple first and second rotor extensions for a brushless motor are shown according to some embodiments of the present invention.

[0051] FIG. 2B An exploded view of three components of the rotor of a crown-shaped brushless motor according to some embodiments of the present invention is shown: a cylindrical core component, a plurality of first axial extensions, and a plurality of second axial extensions.

[0052] FIG. 2C Example components of a rotor according to some embodiments of the present invention.

[0053] FIG. 2D An example rotor in axial magnetization form according to some embodiments of the present invention is shown. The tubular rotor includes six first radial extensions and six second radial extensions.

[0054] FIG. 2E The magnetic field presented by a tubular permanent magnet is shown.

[0055] FIG. 2F A tubular rotor axially magnetized according to some embodiments of the present invention is shown, comprising a cylindrical core having a first extension and a second extension.

[0056] FIG. 2G A cylindrical core component according to some embodiments of the present invention is shown, including a first extension and a second extension, wherein the first extension and the second extension extend outwardly from an end of the cylindrical core component.

[0057] FIG. 2H A tubular rotor axially magnetized according to some embodiments of the present invention is shown, comprising a cylindrical core component and a plurality of first extensions and a plurality of second extensions.

[0058] FIG. 2IA tubular rotor axially magnetized according to some embodiments of the present invention is shown, including a cylindrical core component, the cylindrical core component including a plurality of first extensions and a plurality of second extensions extending inwardly from the cylindrical core component.

[0059] FIG. 2J The rotor of a crown-shaped brushless motor according to some embodiments of the present invention is shown, wherein the cylindrical core and a plurality of first extensions and a second extension are made of a single fixed permanent magnet component.

[0060] FIG. 2K A rotor according to some embodiments of the present invention is shown, comprising a plurality of first extensions and a plurality of second extensions, which are mounted to a cylindrical core and axially magnetized, and form a single fixed permanent magnet rotor.

[0061] FIG. 2L An example of a portion of a crown-shaped brushless motor according to some embodiments of the present invention is shown, wherein a plurality of first extensions and a plurality of second extensions are arranged alternately.

[0062] FIG. 3 A cross-sectional view of a crown-shaped brushless motor according to some embodiments of the present invention is shown.

[0063] FIG. 4 A crown-shaped rotor made of a soft iron lamination assembly is shown according to some embodiments of the present invention.

[0064] FIG. 5 A cross-sectional view of a crown-shaped brushless motor rotor according to some embodiments of the present invention is shown, indicating that the applied magnetic field, as magnetic field lines, propagates from a plurality of first extensions through a cylindrical core component to a plurality of second extensions.

[0065] FIG. 6 A rotor according to some embodiments of the present invention is shown, having six first extensions and six second extensions including magnetic field lines, to illustrate the flow from the first extensions to the second extensions.

[0066] FIG. 7 A rotor comprising a cylindrical core component is shown according to some embodiments of the present invention, wherein each extension of the first extension and each extension of the second extension are separated by a groove that divides each extension into a pair of extensions.

[0067] FIG. 8 A rotor according to some embodiments of the invention is shown, having primary and secondary splits and a rotor arrangement with twelve north poles and twelve south poles, and magnetic field lines flowing from the north pole to the south pole in a free air medium are shown.

[0068] FIG. 9A crown-shaped brushless motor according to some embodiments of the present invention is shown, comprising a plurality of electromagnets concentrically mounted to the stator and surrounding the rotor.

[0069] FIG. 10 A cross-sectional view of a rotor and surrounding electromagnets according to some embodiments of the present invention is shown.

[0070] FIG. 11A A cross-sectional view of a radial rotor having a plurality of six first extensions stacked according to some embodiments of the invention is shown, wherein each extension is divided into an extension pair by a groove, and wherein each extension is adjacent to five electromagnets.

[0071] FIG. 11B A soft iron lamination rotor according to some embodiments of the present invention is shown, wherein the rotor is unpolarized.

[0072] FIG. 11C A magnetized rotor surrounded by electromagnets is shown, with the electromagnet portion being activated.

[0073] FIG. 11D A magnetized rotor surrounded by electromagnets is shown according to some embodiments of the present invention, wherein each of the plurality of electromagnets is polarizable to generate a repulsive force or an attractive force between the magnetic fields of one or more electromagnets and the magnetic field of the rotor.

[0074] FIG. 12 A portion of a brushless motor according to some embodiments of the present invention is shown.

[0075] FIG. 13 A portion of a magnetized rotor according to some embodiments of the invention is shown, comprising a plurality of first extensions in the form of six poles, wherein the stator comprises three inactive electromagnets.

[0076] FIG. 14 A portion of a magnetized rotor according to some embodiments of the invention is shown, comprising a plurality of first extensions in the form of six poles, wherein the stator comprises three electromagnets, one of which is activated to a polarity opposite to that of the rotor, and two electromagnets are not activated.

[0077] FIG. 15 An example method for creating a neutral zone between two electromagnets near a plurality of first and second extensions, according to some embodiments of the present invention, is shown.

[0078] FIG. 16 A U-shaped electromagnet known in the prior art is shown.

[0079] FIG. 17A U-shaped electromagnet known in the prior art is shown, including a rotor segment that can rotate along a vertical axis.

[0080] FIG. 18 As an example of a crown-shaped brushless motor according to some embodiments of the present invention, the motor includes a radial crown-shaped rotor consisting of three axially magnetized cylindrical permanent magnets, three radial first extensions, and three radial second extensions.

[0081] It should be understood that, for the sake of brevity and clarity, the elements shown in the accompanying drawings do not necessarily have to be drawn to scale. For example, the dimensions of some elements may be exaggerated relative to others for clarity. Furthermore, where appropriate, reference numerals may be repeated in the drawings to indicate corresponding or similar elements. Detailed Implementation

[0082] Numerous specific details are set forth in the following detailed description of embodiments to provide a thorough understanding of the invention. However, it will be understood by those skilled in the art that the invention can be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the invention.

[0083] Before detailing at least one embodiment of the present invention, it should be understood that the application of the present invention is not limited to the details of the structures and the arrangement of components set forth in the following description or shown in the accompanying drawings. The present invention is applicable to other embodiments implemented or performed in various ways, as well as combinations of the disclosed embodiments. Furthermore, it should be understood that the words and terms used herein are for descriptive purposes only and should not be considered limiting.

[0084] As used herein, "magnetic pole" can refer to, for example, a region or area at each end of a magnet, such as a magnetized rotor, a magnetized cylindrical iron core component, or an electromagnet located at the stator, where the external magnetic field is strongest. There are two types of magnetic poles: "north pole" and "south pole." The interaction between these magnetic poles determines the behavior of the magnet, such as attraction and repulsion.

[0085] As used in this article, "north pole" can be, for example, the region of a magnet from which magnetic field lines emerge from the magnet and extend outward into the surrounding space. It can attract the south pole of another magnet and repel the north pole of other magnets.

[0086] As used in this article, "south pole" can refer, for example, to a region of a magnet from which magnetic field lines enter and converge. It can attract the north pole of another magnet and repel the south pole of other magnets.

[0087] As used in this article, "brushless motor" can refer to an electric motor that does not use brushes, such as an electric motor that uses electronic commutation instead of brushes.

[0088] FIG. 1A A conventional brushless motor rotor 100 known in the art is shown. The brushless motor rotor 100 may include a rotor core 102 and four permanent magnets 103. FIG. 1A The rotor 100 (which only mentions three magnets) forms a radial array around the rotor shaft 104, and two metal cups 101 are used to fix the magnets 103 to resist centrifugal forces that may be generated during the rotation of the rotor core 102. Typically, in an arrangement with four permanent magnets 103, the rotor 100 may have four magnetic poles, two negatively charged regions (also referred to herein as the north pole) and two positively charged regions (also referred to herein as the south pole).

[0089] FIG. 1B A brushless rotor is shown, having four prior art magnet arrangements 110, 111, 112, and 113 attached to a rotor shaft 115. In all four arrangements, multiple magnets 116, such as four, six, or eight magnets, are attached to the rotor shaft 115 and can be subjected to high forces, such as centrifugal forces, generated during the rotation of the rotor 115. This state of being subjected to rotational forces can cause the magnets 116 to loosen and potentially detach, thus posing a risk of serious damage to motor components.

[0090] This invention relates to brushless motors in which the magnetic flux of the motor is controlled by a single magnet that forms part of the cylindrical iron core component of the rotor and can interact with one or more magnets that form part of the stator or are mounted on the stator. The single magnet is, for example, a permanent magnet or a magnetizable electromagnet, and the one or more magnets are, for example, electromagnets. In an embodiment, a crown-shaped brushless motor includes a stator and a rotor.

[0091] The rotor may include a cylindrical core component. The rotor may be a magnet or made of a magnetizable material. For example, the cylindrical core of the rotor may be an electromagnet and can be activated by coil wires (e.g., coils) arranged around the cylindrical core component, such as a static activation coil. The static activation coil and the laminated cylindrical core may be concentric with each other and with the stator. The cylindrical core may be a permanent magnet of any kind and shape, or it may be made of soft magnetic composite material (SMC), whether it is made of a single element or a combination of multiple elements. When the cylindrical core component is a magnet such as a permanent magnet, coil wires (e.g., coils) cannot be arranged around the cylindrical core component because the magnet is already activated.

[0092] The cylindrical core component may include a plurality of first extensions extending from a first end of the cylindrical core component. The cylindrical core component may include a plurality of second extensions extending from a second end of the cylindrical core component. The plurality of first and second extensions may be crown-shaped, for example, they may be serrated and may divide the magnetic flux of the cylindrical core component into a plurality of magnetic extensions, for example, the magnetic flux of a single magnetic source. The plurality of first and second extensions may include axial extensions, and for example, the serrations of the axial extensions may have the same diameter as the cylindrical core component and extend outward or inward from the cylindrical core component.

[0093] For example, the cylindrical core component, multiple first extensions, and multiple second extensions may have the shape of a rod with crown-shaped ends and be magnetized in the axial direction of the rod. The cylindrical core component may be a solid permanent magnet or made of soft magnetic composite material (SMC) and may be located (e.g., sandwiched) between the multiple first extensions and multiple second extensions, which may be made of, for example, soft iron laminations, soft magnetic composite material (SMC), or permanent magnet material. In one example, the cylindrical core component, multiple first extensions, and multiple second extensions of the rotor may be made of soft iron laminations or SMC, which can be magnetically excited by coil wires, such as static coils.

[0094] For example, multiple first extensions and / or multiple second extensions may extend radially from the cylindrical core component. The multiple first extensions and / or multiple second extensions may be U-shaped extensions extending outward from the cylindrical core component, and the extension ends of the multiple first extensions may face the extension ends of the multiple second extensions. The multiple first extensions and / or multiple second extensions may also be U-shaped extensions extending inward from the cylindrical core component, and the extension ends of the multiple first extensions may face the extension ends of the multiple second extensions. The U-shaped extensions may guide or directionally guide magnetic flux between the multiple first extensions and the multiple second extensions, for example, the magnetic field between the multiple first extensions in the form of negative magnetic poles and the multiple second extensions in the form of positive magnetic poles. Depending on the inward or outward direction of the U-shaped extensions, the magnetic flux may be guided inward into the cylindrical core component or outward to the outside of the cylindrical core component.

[0095] In one instance, the number of first extensions and second extensions may be unlimited. In some cases, the number of first extensions and second extensions may be between 1 and 100, such as 4, 6, 8, 32 or 36 extensions.

[0096] The plurality of first extensions and / or the plurality of second extensions may include coronal elements, which may have a main branch with serrations in the shape of a coronal ring, the coronal ring having a plurality of serrations rigidly connected to each other. Since the plurality of first extensions and / or the plurality of second extensions may be mounted on or form portions of the cylindrical core component, they may not require supports to resist centrifugal forces, for example, unlike... FIG. 1A and FIG. 1B The magnet attached to the rotor is shown. The crown-shaped element can be designed to achieve optimal engagement with the stator electromagnet core. For example, the shape and size of the edges of each extension can be adjusted to differ from the shapes typically used in brushless motors using permanent magnets.

[0097] The rotor may include coil wires arranged around a cylindrical core component. The coil wires are stationary relative to the cylindrical core component and configured to apply magnetic excitation to the cylindrical core component through induction. For example, the coil wires may be coaxial static coils rigidly connected to any part of the stator or motor frame of the brushless motor. The inner diameter of the static coils may be slightly larger than the cylindrical core component to allow the cylindrical core component of the rotor to rotate freely and receive magnetic excitation during rotor rotation.

[0098] For example, the cylindrical core component can be rod-shaped, and multiple first extensions extending from a first end of the cylindrical core component and multiple second extensions extending from a second end of the cylindrical core component can be crown-shaped and magnetizable by wires, such as coaxial static coils surrounding the cylindrical core component. The shape of the extensions can be customized and can be formed into any three-dimensional shape suitable for use in a brushless motor. The cylindrical core component can be surrounded by a stator. The stator can include multiple magnets, such as electromagnets. Each of the electromagnets surrounding the stator can be polarizable, for example, forming a magnetic north pole and a magnetic south pole.

[0099] The relationship between the rotor and stator can be controlled by: the shape of the crown extension, the magnetic flux path between the extensions, by controlling the polarity of the stator electromagnet, by applying a certain power to each of the stator electromagnets, and by controlling the distance between the multiple first and second extensions located on the stator and the electromagnet core, such as the air gap size.

[0100] FIG. 2AExamples of a plurality of first extensions 202A and a plurality of second extensions 202B for a crown-shaped brushless motor according to some embodiments of the present invention are shown. Each plurality of extensions may have a central ring 204A or 204B and eight extensions 206A-206H or 208A-208H. For example, the central ring 204A and the eight extensions 206A-206E may be made of a rigid structure, such as a structure that withstands centrifugal force during rotor rotation at high speeds. Extensions 202A and 202B may have eight extensions, but the number of extensions is not limited to eight and may vary from one extension to multiple extensions.

[0101] FIG. 2B An exploded view of three components of a brushless motor rotor 210 according to some embodiments of the present invention is shown: a cylindrical core component 213, a plurality of first extensions 215, and a plurality of second extensions 217. The crown-shaped extensions 215 and 217 may be axial extensions of the cylindrical core component 213. The cylindrical core component 213 may be a solid permanent magnet or may be made of a soft magnetic composite material (SMC). In this case, coils, wires, or coil wires may not be required to magnetize the cylindrical core component. The cylindrical core component 213 may include an electromagnet (e.g., activated by coil wires, such as...). FIG. 3 The wire 314 shown is wrapped around FIG. 3 The cylindrical core component arrangement shown can serve as a solid magnet, having one axial negative polarity (e.g., north pole 219) and one axial positive polarity (e.g., south pole 221). The crown extensions 215 and 217 can be made of soft iron. The crown extensions 215 and 217 can each include a central ring 223 and 225, and multiple extensions surrounding it, such as six extensions. Extensions 215 or 217 can be part of the central ring 223 or 225 and can withstand centrifugal forces when the rotor rotates at high speed.

[0102] FIG. 2CThis is an example assembly of a rotor 210 according to some embodiments of the present invention. The rotor 210 may include an assembly of a cylindrical core component 213 and crown extensions 215 and 217. When a plurality of first extensions are attached to the north pole 219 of the magnetically polarized cylindrical core component 213, magnetic flux can flow through the crown ring 223 of the crown extension 215 and can split into extensions 215A-215F, such as the crown extension 215C, and the magnetically polarized cylindrical core component 213, such as a permanent magnet. In the case of six extensions 215A-215F, six axial, negatively polarized north poles 220 can be generated. In the polarized state, for example during motor operation, magnetic flux can flow in the axial direction of the cylindrical core component, for example, in the plane of the cross-section 227 of the magnet core. The magnetic flux can reach the crown ring 223 of the crown extension 215, and separates upon entering the crown ring 223, dividing into extensions 215A-215F. During motor operation, in the case of six extensions 217A-217F ( FIG. 2C The diagram only shows four poles (217A-217D), which can produce six axially positively polarized South Pole 222.

[0103] The surface area represented by the six regions, represented by the north pole 220 at the top of the extensions 215A-215F, relative to the polarization of the crown extension 215, can be smaller than the diameter of the cylindrical core component 227. Since magnetic flux density is inversely proportional to the area, the magnetic flux density emitted from the sum of the six regions represented by the north pole 220 may be significantly higher than the average magnetic flux density emitted from the cross-sectional area 227 represented by the diameter of the cylindrical core component 213. An innovation of some embodiments of the invention is that the shapes of the plurality of first extensions 215 and the plurality of second extensions 217 can be adjustable / customizable for application to the motor. For example, the magnetic flux generated during motor operation can be adjusted / changed according to the shapes of the extensions 215 and 217 to achieve a brushless motor design, thereby obtaining, for example, a high-performance motor.

[0104] FIG. 2D An example rotor 210 in axial magnetization form according to some embodiments of the present invention is shown. The tubular rotor includes six first extensions 215 and six second extensions 217. The six first extensions 215 and the six second extensions 217 can be attached to crown rings 223 and 225, respectively.

[0105] FIG. 2E Two views, 230 and 240, depict the magnetic field known in the art as that presented by a tubular permanent magnet 232. Magnetic flux can flow from the north pole 234 to the south pole 235 via an external path 236 and an internal path 237.

[0106] FIG. 2F Two views, 245 and 255, of an axially magnetized tubular rotor 246 according to some embodiments of the present invention are depicted. The tubular rotor 246 includes a cylindrical core component 248 having a first extension 249 and a second extension 250. The axially magnetized tubular rotor 246 may include a plurality of first extensions 249 and second extensions 250 in the form of U-shaped, crown-like extensions, extending outward from a first end of cylindrical core component 248A and a second end of cylindrical core component 248B. Since the plurality of first extensions 249 and second extensions 250 extend outward, the plurality of outwardly facing first extensions 2008 can guide the magnetic flux outside the cylindrical core component 248 from the north pole 251 to the south pole 252 located at the plurality of second extensions 250. Since the magnetic field lines are preferably located inside the ferromagnetic material rather than in the air, the orientation of the plurality of U-shaped first extensions 249 and the plurality of second extensions 250 can allow the creation of magnetic flux located inside or outside the cylindrical core component 248. Therefore, the magnetic flux of the future autonomous magnetic source can be separated into multiple first extensions 249 and second extensions 250, which allows for the design of the direction of magnetic field lines and control of the magnetic flux density at each cross-section along the path of magnetic flux in the magnetic field, such as the main magnetic source, which is a cylindrical core component 248.

[0107] FIG. 2G Two views, 260 and 265, are shown according to some embodiments of the invention. The cylindrical core component 248 includes a first extension 249 and a second extension 250, wherein the first and second extensions have U-shaped extensions extending outwardly from the ends of the cylindrical core component. The magnetic flux 253 may be located outside the cylindrical core component 248, from the north pole 251 to the south pole 252, and may also be located inside the cylindrical core component 248, from the south pole 252 to the north pole 251.

[0108] FIG. 2HA tubular rotor 270 axially magnetized according to some embodiments of the present invention is shown, comprising a cylindrical core component 273 and a plurality of first extensions 274 and a plurality of second extensions 275. The cylindrical core component 273 may be a solid permanent magnet or made of a soft magnetic composite material (SMC), and may be located (e.g., sandwiched) between the plurality of first extensions 274 and the plurality of second extensions 275, which may be made of, for example, soft iron such as soft iron laminations, soft magnetic composite material (SMC), or a permanent magnet material. Each extension of the plurality of first extensions 274 may be separated by a groove (e.g., groove 276) that separates each extension into a pair of extensions 278. Each extension of the plurality of second extensions 275 may be separated by a groove 276 that separates each extension into a pair of extensions 279. Therefore, the plurality of first extensions 274 and the plurality of second extensions 275 can have eight extensions 274A-274H and 275A-275H (in FIG. 2H (Not separately marked), can be divided into eight pairs of extensions by grooves 276, leading to 16 north poles of multiple first extensions and 16 south poles of multiple second extensions respectively. The extensions of the multiple first extensions 274 and multiple second extensions 275 can be attached to the crown rings 283 and 285 respectively, and can be segmented and bent, for example, the segments located at the north poles represented by segments 283A and 285A, and the segments located at the south poles represented by segments 283B and 285B, facing towards the central layer of the cylindrical core. FIG. 2H As shown, a plurality of first extensions 274 and a plurality of second extensions 275 can extend outward toward the central plane of the cylindrical core component 273. The magnetic flux of surfaces 281A and 282A located at the North Pole can be directed toward surfaces 281B and 282B located at the South Pole, for example, without causing any form of magnetic interference to other spatial directions. Arrows 280A and 280B can indicate how the magnetic flux is guided through the extensions located at the North and South Poles. Specifically, the magnetic flux can be guided outward from surfaces 281A and 282A located at the North Pole to surfaces 281B and 282B located at the South Pole. Surfaces 281A / B and 282A / B can be configured to be adjacent to the surface of the electromagnet core of the stator electromagnet. For example, the electromagnet core of the stator can be located between surfaces 281A and 281B. Since the shape of the extensions can be configurable, their shape can be adjusted, for example, according to a suitable or preferred arrangement of the electromagnets located on the stator. In this way, the dimensions of the extensions 274 and 275 can accommodate possible limitations in the configuration of the stator electromagnet or achieve effective counterbalance between the stator and rotor. For example, the outer diameter of the rotor can be precisely machined by adjusting the space requirements of the stator through the shapes of the multiple first extensions 274 and the multiple second extensions 275. Therefore, the distance between the rotor and stator can be less than 50 micrometers.

[0109] Since magnetic flux density is inversely proportional to the cross-sectional area of ​​an object, and the cross-sectional area of ​​each extension is much smaller than that of the cylindrical core component, the magnetic flux density at the top of the extension 282A or 282B can be higher than the magnetic flux density observed at the cross-section of the cylindrical core component, for example, as... FIG. 2B Surface 227 is shown.

[0110] The openings within the rotor flange and the space between the rotor and stator can be configured to allow ventilation of the rotor and stator, permitting air infiltration into the motor arrangement. This air infiltration further allows for cooling of the rotor and stator and prevents overheating of the crown brushless motor. These openings also reduce rotor weight and inertia.

[0111] FIG. 2I Two views, 288A and 288B, of an axially magnetized tubular rotor 270 according to some embodiments of the present invention are shown. The tubular rotor 270 includes a cylindrical core member 273 having a plurality of first extensions 274 and a plurality of second extensions 275 extending inwardly from the cylindrical core member 273. Each of the plurality of first extensions 274 and the plurality of second extensions 275 may be U-shaped and extend inwardly towards the center of the rotation axis of the cylindrical core member 273. FIG. 2I As shown, a plurality of first extensions 274 and a plurality of second extensions 275 can extend inward toward the central layer of the cylindrical core. Therefore, extensions 274 and 275 can guide magnetic flux from the north pole located at extension 274 back to the south pole located at extension 275.

[0112] FIG. 2J The rotor 270 of a crown-shaped brushless motor according to some embodiments of the present invention is shown, wherein the cylindrical core component 273 and a plurality of first extensions 274 and second extensions 275 are made of a single solid permanent magnet component.

[0113] FIG. 2K A rotor 270 according to some embodiments of the present invention is shown, comprising a plurality of first extensions 274 and a plurality of second extensions 275, which are mounted to a cylindrical core component 273 and magnetized in the axial direction. For example, the cylindrical core component 273, the extensions 274 and 275 may form a single solid permanent magnet rotor; or the cylindrical core component 273 may be a permanent magnet and the extensions 274 and 275 may be made of soft iron, and may form a single solid permanent magnet rotor. For example, as FIG. 2KAs shown, rotor 270 may include a first extension 274 and a second extension 275, which are attached back-to-back to crown rings 283 and 285. Crown rings 283 and 285 may form a cylindrical core component 273. The first extension 274 and the second extension 275 are located on crown rings 283 and 285, respectively, and may be magnetized in opposite axial directions, such that rotor 270 includes an extension 274 forming the north pole of rotor 270 and an extension 275 forming the south pole of rotor 270. For example, rotor 270 may be a single permanent magnet.

[0114] FIG. 2L Three views, 289A-289C, are shown as examples of portions of a crown-shaped brushless motor 290 according to some embodiments of the present invention, wherein a plurality of first extensions 291 and a plurality of second extensions 292 are arranged alternately. In view 289A, the brushless motor 290 may include a stator 293 and a rotor 294 having a cylindrical core component 295 sandwiched between the plurality of first extensions 291 and the plurality of second extensions 292. Each of the extensions 291 and 292 may include four extensions 291A-291D and 292A-292D. Extensions 291A-291D of the first extensions 291 may be axially rotated relative to extensions 292A-292D of the second extensions 292, for example, by 45°. Due to axial rotation, extensions 292A-292D of extension 292 can overlap with ring 296 of extension 291, and extensions 291A-291D of extension 291 can overlap with ring 297 of extension 292. View 289B shows that the rotor 294 and the cylindrical core component 295 of rotor 294 can be sandwiched between extensions 291 and 292, and shows the relative positions of extensions 291 and 292 when interleaved. View 289C shows the arrangement of cylindrical core component 295, extensions 291 and 292 within stator 293. Interleaved extensions, for example as... FIG. 2L As shown, additional excitation can be advantageously provided between the rotor and stator, for example, with... FIG. 1B Compared to the permanent magnets in existing brushless motors, this is shown. FIG. 2L The spatial positions of the ends of the extensions 291 and 292 shown can be related to FIG. 1B The permanent magnet 116 shown is in a similar position, but is similar to... FIG. 1B Compared to the rotors shown, they are less affected by centrifugal force.

[0115] FIG. 3A cross-sectional view of a portion of a crown-shaped brushless motor 300, including a stator 310 and a rotor 320, according to some embodiments of the present invention is shown. The brushless motor 300 may include a laminated rotor 320, for example made of soft iron, with coil conductors 314, such as static coils, arranged around a cylindrical core component 321, rigidly connected to the stator 310 via a frame 313 and a radial hysteresis member 312. In some embodiments, the coil conductor assembly 314, for example, the static coil, may be mounted on the stator 310. The diameter of the static coil 314 may be slightly larger than the diameter of the cylindrical core 321. This arrangement between the coil 314 and the cylindrical core 321 allows the rotor 320 to be magnetically excited, for example, by induction during motor operation, and to rotate freely within the coil conductors 314 located within the stator 310. Ventilation (e.g., air cooling) of the rotor 320 and stator 310 can be achieved through an opening 315 in the rotor flange and / or in the space between the cylindrical core component of the rotor 321 and the stator 310. For example, airflow 325 can be applied through the space between rotor 320 and stator 310 to cool rotor 320 and stator 310.

[0116] FIG. 4 A crown-shaped rotor 420 made of a soft iron lamination assembly is shown according to some embodiments of the present invention. The rotor 420 may have three parts: 1) a relatively small cylindrical rotor core 421; 2) a plurality of first extensions 422 extending from the rotor core 421, these extensions being polarizable, for example, generating a north pole using six north pole radial extensions 423; and 3) a plurality of second extensions 424 extending from the rotor core 421, these extensions being polarizable, for example, generating a south pole using six south pole radial extensions 425. Axial magnetization of the cylindrical core component may be distributed among the plurality of first extensions 422 and second extensions 424. The first extensions 422 may be uniformly arranged along the circumference of a first circular base, and the second extensions 424 may be uniformly arranged along the circumference of a second circular base. For example, the six radial extensions 423 of the first extensions 422 may be spaced at 60° intervals along the axis of rotation of the cylindrical core component.

[0117] FIG. 5 A cross-sectional view of the rotor 520 of a crown-shaped brushless motor according to some embodiments of the present invention is shown, with the applied magnetic field represented as magnetic field lines 525. Magnetic field lines 525 may originate from the north pole of the cylindrical core component 521, pass through the crown ring 522 and six radial north pole extensions 523 (only four of the six extensions are shown in the figure). Magnetic field lines 527 may lead to the south pole of the cylindrical core component 521 through six radial south pole extensions 524 (only four of the six extensions are shown in the figure) and the crown ring 528.

[0118] FIG. 6The rotor 620 is shown to have a cylindrical core component 621, six first extensions 623 located at the north pole 622A, and six second extensions 624 located at the south pole 622B. The first and second extensions can be configured to guide the flow of magnetic flux from the first extensions 623A-623F to the second extensions 624A-624F. The magnetic flux in this arrangement can be represented by magnetic fluxes 627A-627D: the magnetic flux located at the north pole 622A can be guided outward through extension 623A (step 627C) and can be transferred to extension 624A located at the south pole 622B (step 627D). Magnetic flux can be transferred inward to the south pole (step 627A) and can be transferred within the cylindrical core component 621 to the north pole 622A (step 627B).

[0119] FIG. 7 The rotor 720, as shown in some embodiments of the present invention, includes a cylindrical core component 721, wherein each extension of the first extension 723A-723F and each extension of the second extension 724A-724F ( FIG. 7 Only 724A-724D are shown. Extensions can be separated by grooves, such as groove 730, which divides each extension into a pair. First extensions 723A-723F may include six pairs of extensions, forming twelve north pole polarized magnetic poles when polarized. Second extensions 724A-724F may include six pairs of extensions, forming twelve south pole polarized magnetic poles when polarized. For example, each extension of the pair of extensions formed by the groove 730 in extension 724C can divide a single south pole polarized extension 724C into two polarizations as indicated by arrows 728A and 728B. Separating the first and second extensions into pairs allows for improved accuracy when the rotor 720 interacts with the stator electromagnet, such as... FIG. 9 The electromagnet 933 is shown. For example, the speed of the rotor 720 is adjusted to achieve the required mechanical output of the motor.

[0120] FIG. 8 The invention illustrates a rotor 820 having primary and secondary branches according to some embodiments thereof, thereby forming twelve north poles 822 and twelve south poles 824, and shows magnetic field lines 827 flowing from the north poles 822 to the south poles 824 through the air.

[0121] FIG. 9According to some embodiments of the invention, a crown-shaped brushless motor 900 includes a plurality of electromagnets 933, such as 36 electromagnets, concentrically mounted to a stator 911 and surrounding a rotor 920. For example, the electromagnets may be arranged radially about the rotor's axis of rotation. For example, a plurality of electromagnets may be attached to the stator. Each of the electromagnets 933 in the stator 911 may surround a portion of an extension of a first extension and a portion of an extension of a second extension. For example, as... FIG. 9 As shown, the north polarization extension 940 can be surrounded by electromagnets 933A-933E. Each of the plurality of electromagnets can be polarizable to generate a repulsive force between the magnetic fields of one or more electromagnets and the magnetic field of the rotor. Each of the plurality of electromagnets can be polarizable to generate an attractive force between the magnetic fields of one or more electromagnets and the magnetic field of the rotor. Therefore, the motor 900 can be configured to adjust the torque and / or rotational speed of the cylindrical core component by activating one or more of the plurality of electromagnets located at the stator 911.

[0122] Since the electromagnet 933 of the stator 911 can be located outside the cylindrical core component 920, the crown-shaped brushless motor 900 can realize the configuration of the stator 911, which includes... FIG. 1A and FIG. 1B The number of electromagnets shown is much greater than the number of electromagnets in the diagram. For example... FIG. 1A and FIG. 1B As shown, in the arrangement of the magnets: magnet 103 is located inside rotor 100, which limits the number of magnets 103 so that it is equal to the size of the cylindrical core component of the rotor, for example, the diameter of the cylindrical core component. Therefore, as FIG. 9 The brushless motor 900 shown or such FIG. 2H The rotor 270 shown allows the stator 911 to be fitted with a significantly greater number of electromagnets 933, for example, as FIG. 9 The stator shown can include 36 electromagnets, which is significantly higher than that shown. FIG. 1A or FIG. 1B The number of magnets 103 shown. A large number of electromagnets 933 allows the design of a crown brushless motor to have a high number of poles, and thus enables the brushless motor to operate with higher precision than motors known in the art.

[0123] FIG. 10A cross-sectional view of a rotor 1000 and surrounding electromagnets 1033 according to some embodiments of the present invention is shown. The rotor 1021 may include a laminated cylindrical core component 1021, surrounded by coil wires and portions of electromagnets, such as rotor coil 1014, and portions of electromagnets such as one of 36 electromagnets 1033 in the stator. For example, rotor coil 1014 may be activated, for example, by applying current to create magnetization of the rotor 1000, and a plurality of first extensions 1040 forming a north pole 1031 of the rotor 1000 and a plurality of second extensions 1042 forming a south pole 1032 of the rotor 1000. Activation of the electromagnets 1033, for example by applying current to electromagnet coil 1015, may result in the generation of polarity in the electromagnets 1033, and a north pole 1034A may be induced near the south pole 1032 of the rotor 1000, and a south pole 1034B may be induced near the north pole 1031 of the rotor 1000. In this arrangement, attractive forces can be generated between the north pole 1034A of the electromagnet and the south pole 1032 of the rotor, and between the south pole 1034B of the electromagnet and the north pole 1031 of the rotor. Activating the electromagnet 1033 in the opposite direction can generate repulsive forces between the rotor poles and the electromagnet poles: activation of the electromagnet 1033 can induce its polarity, and a south pole 1034A can be induced near the south pole 1032 of the rotor 1000, and a north pole 1034B can be induced near the north pole 1031 of the rotor 1000. In this arrangement, repulsive forces can be generated between the north pole 1034A of the electromagnet and the south pole 1032 of the rotor, and between the south pole 1034B of the electromagnet and the north pole 1031 of the rotor.

[0124] FIG. 11A , FIG. 11B , FIG. 11C , FIG. 11D The activation steps in the activation sequence of the stator electromagnet 1133 of the rotor 1140 and stator 1111 are shown to rotate the rotor 1140 of the motor 1100.

[0125] FIG. 11A A portion of a laminated radial rotor 1140 according to some embodiments of the present invention is shown, the rotor having a plurality of six first extensions 1131A-1131F (in) FIG. 11A Only extensions 1131A, 1131B, 1131C, 1131E, and 1131F are shown in the diagram. Each extension is divided into pairs by a groove, such as groove 1130. For example, six pairs of extensions are provided. Each pair of extensions can be close to five electromagnets. For example, the close proximity distance between the extension pairs and the electromagnets can be between 10 and 100 micrometers, such as 50 micrometers. For the sake of simplicity, FIG. 11AThe electromagnets surrounding the remaining extensions 1131B-1131F are omitted and... FIG. 11A Only electromagnets 1133A-1133E surrounding the extension pair 1131A are shown. Five electromagnets 1133A-1133E can be positioned close to the edges 1135A and 1135D of the extension pair 1133A, and these electromagnets 1133A-1133E can be activated, for example, in a preset sequence (e.g., a specific activation algorithm and timing) to generate thrust and / or pull, such as... FIG. 10 and FIG. 11B to FIG. 11D As shown, this allows rotor 1140 to achieve the desired torque and / or speed:

[0126] When the rotor 1140 is magnetized and the electromagnets of the stator 1111 are activated, electromagnets 1133A and 1133B can approach rotors 1140 at 1135C and 1135D (see [reference]). FIG. 12 (Viewed from an additional angle of the rotor 1140 arrangement) and can provide thrust and / or pull on edges 1135C and 1135D. Electromagnets 1133D and 1133E can be located close to edges 1135A and 1135B of the rotor 1140 and can generate thrust and / or pull on edges 1135A and 1135B. Electromagnet 1133C can be located above groove 1130, and its polarization can be neutralized. The neutralization of electromagnet 1133C can be caused by the following two effects: 1) groove 1130 below electromagnet 1133C can create an air gap between the core of electromagnet 1133C and rotor 1140; and 2) by activating electromagnet 1133C in a direction opposite to the main magnetic flux direction, for example as FIG. 6 As shown in step 627D, for example, further as FIG. 14 As shown, the magnetic field generated by the rotor 1140 in the direction of the groove 1130 is counteracted by controlling the magnetization of the electromagnet 1133C.

[0127] The shape and size of the grooves between the extensions, such as groove 1130, the air gap between the rotor electromagnets, and some obstructions in the stator electromagnets, can allow control of the pull / push vector angle, and thus control of the rotor's rotational speed, for example, by reverse polarization or the defined polarization intensity of the electromagnets, for example, rotor 1140. For example, stator electromagnet 1133 can be unpolarized at a specific vector angle, for example, vector angle 1160 derived from the radial direction pointing to vector angle 1162, for example, when the pull / push vector angle 1160 is greater than 75 radians (almost radial) and the rotational vector at that angle can be ignored, for example, by means of... FIG. 17 The attraction line 1705 and vector 1708 are shown.

[0128] FIG. 11BA soft iron lamination rotor 1140 according to some embodiments of the present invention is shown, wherein the rotor is unpolarized. In the unpolarized state of the rotor 1140, there may be no magnetic force between the rotor 1140 and the stator electromagnets 1133 (e.g., electromagnets 1133A-1133E). During the activation of the rotor 1140, for example, the rotor 1140 can be activated by applying electrical energy to coil wires arranged around the cylindrical core component 1121 of the rotor 1140, for example, from an unactivated, soft iron-based cylindrical core component 1121 to an activated cylindrical core component 1121, including a plurality of first extensions and a plurality of second extensions, the plurality of first extensions, for example, polarizing six extension pairs 1131A-1131F to form twelve north poles, and the plurality of second extensions, for example, polarizing six extension pairs 1132A-1132F to form twelve south poles, such as... FIG. 11A As shown. FIG. 11A An example motor arrangement is shown, in which extension pair 1131A acts as the north pole and is located close to electromagnets 1133A, 1133B, 1133D, and 1133E. The interaction between the polarized extension pair 1131A and the non-polarized electromagnets 1133A-1133E can result in a significant pulling force between the rotor and stator electromagnets (shown via 1137A and 1137B). Since electromagnet 1133C can be located opposite the recess 1130, the pulling force on electromagnet 1133C is negligible. In this activated state, the electromagnets 1133 of the rotor 1140 and stator 1111 can remain balanced and the rotor 1140 does not rotate; the electromagnets 1133 are, for example, magnets 1133A-1133E.

[0129] FIG. 11CA magnetized rotor 1140 according to some embodiments of the invention is shown, and the interaction between the rotor 1140 and the stator 1111 is illustrated for the extension pair 1131A, which is surrounded by five partially activated electromagnets 1133A-1133E. Stator electromagnets 1133C, 1133D, and 1133E may be unactivated (e.g., they are not polarized), and electromagnets 1133A and 1133B may be activated (e.g., they may be polarized). Therefore, the north poles of 1133A and 1133B may be very close to the north pole 1 / 1150A of the extension pair 1131A of the rotor 1140, and a repulsive force may be generated between the edges 1135C and 1135D of the electromagnets 1133A and 1133B and the north pole 1150A. Therefore, an attractive force can exist between electromagnets 1133D and 1133E and the edges 1135A and 1135B of the extension to 1131A, while a repulsive force can exist between electromagnets 1133A and 1133B and the edges 1135C and 1135D of the extension to 1131A. The interaction of the attractive and repulsive forces can cause the rotor 1140 to rotate, for example, in a clockwise direction.

[0130] Since an attractive force can exist between the rotor north pole 1150B of the extension 1131AA and electromagnets 1133D and 1133E, the rotation of rotor 1140 can be achieved by activating and controlling only electromagnets 1133A and 1133B, which can generate a repulsive force on the rotor north pole 1150A of the extension 1131A. Therefore, increasing the attractive force between rotor north pole 1150B and electromagnets 1133D and 1133E can initiate the rotation of rotor 1140.

[0131] FIG. 11D A magnetized rotor 1140 according to some embodiments of the invention is shown, and the interaction between the rotor 1140 and the stator 1111 is shown for an extension pair 1131A surrounded by five electromagnets 1133A-1133E, each of which is polarizable to generate a repulsive force or an attractive force between the magnetic field of the electromagnet and the magnetic field of the rotor. FIG. 11D An example layout is shown, which follows FIG. 11C The arrangement described in [the text]. But... FIG. 11D In this configuration, electromagnets 1133D and 1133E can be activated and can have a south pole near the north pole 1150B of the rotor of the extension pair 1131A. The attraction between electromagnets 1133D and 1133E and the rotor edges 1135A and 1135B of the extension pair 1131A can be greater than... FIG. 11CThe attractive force is greater in the arrangement shown. In summary, both attractive and repulsive forces can cause the rotor 1140 to rotate, and... FIG. 11C The rotational torque shown is greater than the rotor's rotational torque at this time.

[0132] For example, such as FIG. 9 As shown, for a stator with 36 electromagnets, the motor can produce maximum torque when all 36 electromagnets are activated (e.g., polarized). Electromagnet activation can be performed in subgroups; for example, when the stator includes 36 electromagnets, they can be divided into 6 subgroups, each with 6 electromagnets activated. Subgroups of electromagnets can be activated in parallel; for example, each subgroup can be activated individually by an activation method or sequence. Therefore, the motor can operate, for example, the rotor can rotate, only when one or more subgroups of all electromagnets are activated. The generated torque can depend on the number of activated electromagnet subgroups. For example, if the stator includes 36 electromagnets, the activation of 6 subgroups of electromagnets can only produce 1 / 6 of the torque that can be generated when all 36 electromagnets of the stator are activated.

[0133] like FIG. 11A to FIG. 11DAs shown, one embodiment may include a method of activating a crown-shaped brushless motor (e.g., motor 1100). For example, the crown-shaped brushless motor includes a stator (e.g., stator 1111) comprising: a plurality of electromagnets (e.g., electromagnet 1133) arranged radially around a rotor shaft of a rotor 1140; and a rotor 1140 having a cylindrical core component (e.g., core 1121), the cylindrical core component including: a plurality of first extensions (e.g., extension 1131) extending from a first end of the cylindrical core component and a plurality of second extensions (e.g., extension 1132) extending from a second end of the cylindrical core component, wherein each of the first extensions 1131 and each of the second extensions 1132 is separated by a groove (e.g., groove 1130). The groove 1130 divides a plurality of extensions 1131 and 1132 into pairs of extensions, such as pairs of extensions 1131A-1131F and 1132A-1132F; and coil wires 1114 arranged around the cylindrical core component 1121; including the steps of: a) activating the coil wires 1114 by magnetic force to polarize the first and second pairs of extensions of the rotor 1140, such as pairs of extensions 1131A-1131F and 1132A-1132F; and b) activating one or more electromagnets 1133 of the stator 1111 by magnetic force to generate magnetization, thereby generating a repulsive force between the one or more electromagnets 1133 and the first portions of the pairs of extensions 1131A-1131F and 1132A-1131F, thereby rotating the rotor 1140. In some embodiments, the method of activating a crown brushless motor (e.g., motor 1100) includes the following steps: magnetically activating one or more electromagnets 1133 of stator 1111 to generate magnetization, thereby generating an attractive force between the one or more electromagnets 1133 and a second portion of an extension pair, such as extension pairs 1131A-1131F and 1132A-1132F.

[0134] FIG. 12 An exploded view of portions of a brushless motor 1200 according to some embodiments of the present invention is shown. Stator electromagnets 1233A and 1233B may be located near the edges 1235C and 1235D of the extension pair of rotor 1240 and may apply push / pull forces to these edges. Stator electromagnets 1233D and 1233E may be located close to the edges 1235A and 1235B of the extension pair and may provide push / pull forces to these edges. Each electromagnet 1233 of the stator 1211 of the brushless motor 1200, as well as the first and second portions of the extension pair, such as edges 1235A-1235D, can operate independently and can function as a motor without any effect from magnetization generated at adjacent magnetic poles.

[0135] FIG. 13A portion of the magnetized rotor 1340 is shown, comprising a plurality of first extensions 1331 in the form of six north poles and a plurality of second extensions 1332 in the form of six south poles (only two extensions 1331A and 1332A are shown). The stator 1311 may include three inactive electromagnets 1333B, 1333C, and 1333D. Since electromagnets 1333B, 1333C, and 1333D are inactive, the magnetic flux generated from the first extensions 1331A can flow uniformly through the cores of electromagnets 1333B, 1333C, and 1333D to the second extensions 1332A, as indicated by arrows 1335A-1335C.

[0136] FIG. 14 A portion of the magnetized rotor 1440 is shown, comprising a plurality of first extensions 1431 in the form of six north poles and a plurality of second extensions 1432 in the form of six south poles (only two extensions 1431A and 1432A are shown in the figure). The stator 1411 may include three electromagnets 1433B-1433D. FIG. 13 Compared to the magnetic field lines 1335B shown, electromagnet 1433C can be activated with a polarity 1435 opposite to that of rotor 1440, while electromagnets 1433B-1433D cannot be activated. For example... FIG. 13 As shown, the activation direction / polarity of electromagnet 1433C is opposite to the polarity of rotor 1440, and the control polarity 1335B is applied to electromagnet 1433C, which decomposes magnetic flux 1335B into magnetic flux 1436 and magnetic flux 1437. Therefore, suppressing the flow of magnetic flux through the core of electromagnet 1433C can create a flux-free region between electromagnets 1433B and 1433D. Therefore, as an alternative to activating electromagnet 1433C to a polarity opposite to that of rotor 1440, a magnetic field sufficient to block magnetic flux 1335B can be applied to activate electromagnet 1433C without interfering with the magnetic flux generated from electromagnets 1433B and 1433D and the polarized rotor 1440.

[0137] FIG. 15 An example method according to some embodiments is shown for creating a region including neutral polarization between electromagnets 1533B and 1533D and extension pairs 1531A and 1532A. FIG. 15 Alternative methods for neutralizing electromagnet 1533C and creating free space between electromagnets 1533B and 1533D are shown. More specifically, and referring to… FIG. 12Between the two pairs of electromagnets, a region including neutral polarization can be created: 1233A / 1233B and 1233D / 1233E can be freely magnetically acted on the edges 1235A and 1235B, as well as 1235C and 1235D, of the extensions 1231A and 1231B, respectively.

[0138] The rotor 1540 may include a plurality of first extensions 1531A-1531F in the form of six north poles and a plurality of second extensions 1532A-1532F in the form of six south poles. FIG. 15 Only extensions 1531A and 1532A are shown in the diagram. Each extension can be divided into a pair of extensions by a groove 1530. Thus, the first extensions 1531A-1531F may include twelve north poles and the second extensions 1532A-1532F may include twelve south poles, and each pair of extensions may be closely spaced, for example, surrounded by five electromagnets 1533.

[0139] A groove, such as groove 1530, can form an air gap between each pair of extensions, for example, between the core of electromagnet 1533C and rotor 1540. Since magnetic flux tends to flow through ferromagnetic media rather than air, the magnetic field lines 1535 can be divided into two parts: flux lines 1535A and 1535B. No magnetic flux can be transmitted through the core of electromagnet 1533C, resulting in a neutral polarized region between electromagnets 1533B and 1533D, for example, when the stator electromagnet core 1533C is temporarily positioned above groove 1530. Therefore, the groove can redirect magnetic flux from the rotor to the stator, for example, by providing a neutral polarized region.

[0140] FIG. 16 A U-shaped electromagnet 1600 known in the prior art is shown. For example, the electromagnet 1600 can be implemented by generating a vertical force 1615 to vertically lift and hold a load and transfer the load between different positions.

[0141] FIG. 17 A U-shaped electromagnet 1700, known in the prior art, is shown, comprising a rotor segment 1702 rotatable along an axial shaft 1704. (Reference) FIG. 16 , FIG. 17 The same prior art U-shaped electromagnet 1700 is shown, but the electromagnet 1700 can pull the rotor segment 1702, which can rotate about the axis 1704. Since the rotor segment 1706 is at an angle to the U-shaped electromagnet 1700, the magnetic field lines 1705 can also be at an angle to the electromagnet 1700, and can generate a rotation vector 1708, which can cause the rotor segment 1706 to rotate along the vertical axis 1704.

[0142] The concept of this invention is not limited to such FIG. 17The arrangement shown is applicable to other motor arrangements as well. For example, the motor may include multiple electromagnets located on the stator surrounding the rotor, and the function of each stator electromagnet may be as follows: FIG. 17 Similar functionality as described, and as FIG. 17 As shown, the U-shaped electromagnet can pull the rotor poles and generate a rotational vector, causing rotor segment 1706 to rotate around axis 1704. Although the rotor can rotate continuously in a specific direction, each stator electromagnet, for example... FIG. 11A The magnet 1133 shown can independently change its polarity and generate thrust or pull, thereby rotating or pushing a rotor, such as rotor 1140.

[0143] FIG. 18 As an example of a radial crown rotor 1800 according to some embodiments, it is composed of three axially magnetized cylindrical core components 1801, three radial first extensions 1803 and three radial second extensions 1805.

[0144] The flowcharts and accompanying drawings above illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each part in the flowcharts or partial drawings may represent a portion of a module, segment, or code, including one or more executable instructions for implementing a specified logical function. It should also be noted that in the following alternative implementations, the functions mentioned in the parts may not be in the same order as shown in the drawings. For example, two parts shown consecutively may actually be executed substantially simultaneously, or, depending on the functions involved, these parts may sometimes be executed in reverse order. It should also be noted that each part shown in the partial drawings and / or flowcharts, and combinations of parts shown in the partial drawings and / or flowcharts, can be implemented by a dedicated hardware system that performs the specified function or behavior, or a combination of dedicated hardware and computer instructions.

[0145] Those skilled in the art will understand that certain aspects of the invention can be embodied as a system or apparatus. Therefore, various aspects of the invention can be implemented entirely in hardware or in a combination of software and hardware, all of which are generally referred to herein as “circuit,” “module,” or “system.”

[0146] The above figures illustrate the architecture, functionality, and operation of possible implementations of systems and devices according to various embodiments of the present invention. The embodiments mentioned above refer to examples or implementations of the present invention. The various appearances of "an embodiment," "an embodiment," or "some embodiments" do not necessarily refer to the same embodiment.

[0147] While various features of the invention may be described in the context of a single embodiment, these features may also be provided individually or in any suitable combination. Conversely, while the invention may be described in the context of independent embodiments for clarity, the invention may also be implemented in a single embodiment.

[0148] The terms "some embodiments," "embodiment," "one embodiment," or "other embodiments" used in this specification refer to specific features, structures, or characteristics related to an embodiment that are included in at least some, but not necessarily all, embodiments of the invention. Furthermore, it should be understood that the various aspects of the invention described above can be combined or otherwise coexist in embodiments of the invention.

[0149] While embodiments of the invention are not limited thereto, the terms "plurality" and "a plurality" as used herein can include, for example, "a plurality" or "two or more". The terms "plurality" and "a plurality" may be used in the specification to describe two or more components, devices, elements, units, parameters, etc. The term "set" as used herein can include one or more items.

[0150] It should be understood that the words and terms used in this article should not be interpreted as restrictive and are used for descriptive purposes only.

[0151] The principles and uses of this invention can be better understood by referring to the following description, drawings and examples.

[0152] It should be understood that the details described herein do not constitute a limitation on the application of this invention.

[0153] Furthermore, it should be understood that the present invention can be implemented or applied in various ways, and the present invention can be implemented in other ways than those described in the foregoing specification.

[0154] It should be understood that terms such as “including,” “comprising,” “constituting,” and their grammatical variations do not preclude the addition of one or more components, features, steps, or the whole or a combination thereof, and these words should be interpreted as specifying a component, feature, step, or the whole.

[0155] If the specification or claims refer to an “additional” element, this does not preclude the possibility that there may be more than one of the additional elements.

[0156] It should be understood that when an element is referred to as “a” or “an” in a claim or specification, such reference should not be construed as meaning that there is only one of that element.

[0157] It should be understood that if the specification states that a component, feature, structure, or characteristic is "may", "might", "can", or "could" be included, then that particular component, feature, structure, or characteristic is not necessarily required to be included.

[0158] Where applicable, while state diagrams, flowcharts, or both may be used to describe embodiments, the invention is not limited to these diagrams or corresponding descriptions. For example, the process does not need to go through every block or state shown in the diagrams, nor does it need to proceed in the exact order shown and described.

[0159] The method of the present invention can be implemented by performing or completing selected steps or tasks manually, automatically, or in a combination of both.

[0160] The term "method" can refer to the manner, means, techniques and procedures used to accomplish a particular task, including but not limited to manner, means, techniques and procedures known to those skilled in the art to which this invention pertains or that can be easily developed from known manner, means, techniques and procedures.

[0161] The descriptions, examples, and materials provided in the claims and specification should not be construed as restrictive, but are merely illustrative.

[0162] Unless otherwise defined, the technical and scientific terms used herein should be understood by one of ordinary skill in the art to which this invention pertains.

[0163] This invention can be applied to the testing or practice of materials equivalent to or similar to those described herein.

[0164] While the invention has been described with respect to a limited number of embodiments, these embodiments should not be construed as limiting the scope of the invention, but rather as examples of some preferred embodiments. Other or equivalent variations, modifications, and applications also fall within the scope of the invention. Therefore, the scope of the invention should not be limited to what has been described to date, but should be limited to the appended claims and their legal equivalents.

Claims

1. A crown-shaped brushless motor, comprising: stator; Rotor, comprising: Cylindrical core component; Multiple first extensions extend from the first end of the cylindrical core component, and Multiple second extensions extend from the second end of the cylindrical core component; and A static coil conductor is arranged around the cylindrical core component and configured to magnetize the cylindrical core component to generate magnetic flux in the axial direction of the cylindrical core component; When the cylindrical core component is magnetized by the static coil wire, the plurality of first extensions and the plurality of second extensions are configured to separate and guide the magnetic flux and change the direction of the magnetic flux from the axial direction to a direction different from the axial direction.

2. The crown-shaped brushless motor according to claim 1, wherein, The plurality of first extensions includes a number of extensions selected from the group consisting of 2, 4, 6, 8, 12, 32, 36 and 100.

3. The crown-shaped brushless motor according to claim 1, wherein, The plurality of second extensions includes a number of extensions, the number being selected from the group consisting of 2, 4, 6, 8, 12, 32, 36 and 100.

4. The crown-shaped brushless motor according to claim 1, wherein, The plurality of first extensions and the plurality of second extensions are U-shaped extensions.

5. The crown-shaped brushless motor according to claim 1, wherein, The static coil conductor is stationary relative to the cylindrical core component and is configured to magnetically excite the cylindrical core component through induction.

6. The crown-shaped brushless motor according to claim 1, wherein, The cylindrical core component, the first extension, and the second extension are axially magnetizable.

7. The crown-shaped brushless motor according to claim 6, wherein, The axially magnetizable cylindrical core component, the first extension, and the second extension form a single permanent magnet.

8. The crown-shaped brushless motor according to claim 1, wherein the axial magnetization of the cylindrical core is separated between the first extension and the second extension.

9. The crown-shaped brushless motor according to claim 1, wherein, The cylindrical core component can rotate freely within the static coil wires arranged around the cylindrical core component.

10. The crown-shaped brushless motor according to claim 1, wherein, The cylindrical core component is selected from iron laminations, soft magnetic composite materials, permanent magnet materials, or combinations thereof.

11. The crown-shaped brushless motor according to claim 1, wherein, The cylindrical core component, the first extension, and the second extension are selected from iron laminations, permanent magnet materials, soft magnetic composite materials, or combinations thereof.

12. The crown-shaped brushless motor according to claim 1, wherein, The first extension is evenly arranged along the circumference of the first end of the cylindrical core component.

13. The crown-shaped brushless motor according to claim 1, wherein, The second extension is evenly arranged along the circumference of the second end of the cylindrical core component.

14. The crown-shaped brushless motor according to claim 1, wherein, The motor includes an opening in a rotor flange between the rotor and the stator, the opening being configured to ventilate the rotor and the stator.

15. The crown-shaped brushless motor according to claim 1, wherein, The static coil conductors are arranged and installed on the stator.

16. The crown-shaped brushless motor according to claim 1, wherein, The plurality of first extensions and the plurality of second extensions extend toward the central layer of the cylindrical core.

17. The crown-shaped brushless motor according to claim 16, wherein, The plurality of first extensions and the plurality of second extensions extend outward toward the central surface of the cylindrical core.

18. The crown-shaped brushless motor according to claim 16, wherein, The plurality of first extensions and the plurality of second extensions extend inward toward the central surface of the cylindrical core.

19. The crown-shaped brushless motor according to claim 1, wherein, The plurality of first extensions include a first component connected to a first end of the cylindrical core component, the first component including a first circular base, and the plurality of first extensions extending from the first circular base.

20. The crown-shaped brushless motor according to claim 1, wherein, The plurality of second extensions include a second component connected to a second end of the cylindrical core component, the second component including a second circular base, and the plurality of second extensions extending from the second circular base.

21. The crown-shaped brushless motor according to claim 1, wherein, The first extension and the second extension are configured to guide the flow of magnetic flux from the first extension to the second extension.

22. The crown-shaped brushless motor of claim 21, wherein the magnetic flux is located outside the cylindrical core component.

23. The crown-shaped brushless motor of claim 21, wherein the magnetic flux is located inside the cylindrical core component.

24. The crown-shaped brushless motor according to claim 1, wherein the plurality of first extensions and the plurality of second extensions are arranged alternately.

25. The crown-shaped brushless motor according to claim 1, wherein, Each extension of the first extension and each extension of the second extension are separated by a groove, which divides each extension into a pair of extensions.

26. The crown-shaped brushless motor according to claim 1, wherein, The groove is configured to separate each extension portion of the plurality of first extensions and the plurality of second extensions into an extension pair and to redirect magnetic flux from the rotor through the extension pair to the stator.

27. The crown-shaped brushless motor according to claim 1, wherein, The mechanical energy output of the crown-shaped brushless motor is controlled by one or more of the following: the shape of the first extension and the second extension, the magnetic flux direction between the first extension and the second extension, the stator polarity, the electrical energy applied to each of the stator electromagnets, the distance between the first extension and the stator electromagnet, and the distance between the second extension and the stator electromagnet.

28. The crown-shaped brushless motor according to claim 1, wherein, The stator includes multiple electromagnets.

29. The crown-shaped brushless motor according to claim 28, wherein, The electromagnets are arranged radially around the rotating shaft of the rotor.

30. The crown-shaped brushless motor according to claim 28, wherein, Each of the electromagnets in the stator surrounds the portion of the extension of the first extension and the portion of the extension of the second extension.

31. The crown-shaped brushless motor according to claim 28, wherein, Each of the plurality of electromagnets is polarizable to generate a repulsive force between the magnetic fields of one or more of the electromagnets and the magnetic field of the rotor.

32. The crown-shaped brushless motor according to claim 28, wherein, Each of the plurality of electromagnets is polarizable to generate an attractive force between the magnetic fields of one or more of the electromagnets and the magnetic field of the rotor.

33. The crown-shaped brushless motor according to claim 28, wherein, The stator is configured to adjust the torque and / or rotational speed of the cylindrical core component by activating one or more of the plurality of electromagnets.

34. The crown-shaped brushless motor according to claim 28, wherein, Each of the electromagnets is configured to periodically change its polarity and can be configured to interact with the magnetic field of the rotor to cause the cylindrical core component to rotate about the axial axis of the cylindrical core component.

35. A method for activating a crown brushless motor, wherein the crown brushless motor comprises: Stator, including: Multiple electromagnets, The plurality of electromagnets are arranged radially around the rotor axis, and Rotor, comprising: The cylindrical core component includes: A plurality of first extensions extend from a first end of the plurality of cylindrical core components, and a plurality of second extensions extend from a second end of the cylindrical core components, wherein each of the plurality of first extensions and each of the plurality of second extensions is separated by a groove that divides each extension into a pair of extensions; Static coil wires are arranged around the cylindrical core component. The method includes the following steps: a) Activating the static coil wires magnetically to polarize the first and second extensions of the rotor; and b) Activate one or more electromagnets of the stator by magnetic force to generate magnetization, thereby generating a repulsive force between the one or more electromagnets and the first portion of the extension pair, thereby causing the rotor to rotate.

36. The method for activating a coronal brushless motor according to claim 36, wherein, The method includes the following steps: The one or more electromagnets of the stator are magnetically activated to generate magnetization, thereby creating an attractive force between the one or more electromagnets and the second portion of the extension pair.

37. A crown-shaped brushless motor, comprising: stator; Rotor, comprising: A cylindrical core component includes a permanent magnet that generates magnetic flux in the axial direction of the cylindrical core component; Multiple first extensions extend from the first end of the cylindrical core component, and Multiple second extensions extend from the second end of the cylindrical core component; The plurality of first extensions and the plurality of second extensions are configured to separate and guide the magnetic flux, and to change the direction of the magnetic flux from the axial direction to a direction different from the axial direction.

38. The crown-shaped brushless motor according to claim 37, wherein, The plurality of first extensions and the plurality of second extensions are selected from iron laminations, soft magnetic composite materials, permanent magnet materials, or combinations thereof.

39. The crown-shaped brushless motor according to claim 37, wherein, The cylindrical core component, the first extension, and the second extension form a single permanent magnet.

40. The crown-shaped brushless motor according to claim 37, wherein, The plurality of first extensions and the plurality of second extensions include a number of extensions selected from the group consisting of 2, 4, 6, 8, 12, 32, 36 and 100.

41. The crown-shaped brushless motor according to claim 37, wherein, The plurality of second extensions includes a number of extensions selected from the group consisting of 2, 4, 6, 8, 12, 32, 36 and 100.

42. The crown-shaped brushless motor according to claim 37, wherein, The plurality of first extensions and the plurality of second extensions are U-shaped extensions.

43. The crown-shaped brushless motor according to claim 37, wherein the cylindrical core is axially magnetized and separated into the first extension and the second extension.

44. The crown-shaped brushless motor according to claim 37, wherein, The first extension is evenly arranged along the circumference of the first end of the cylindrical core component.

45. The crown-shaped brushless motor according to claim 37, wherein, The second extension is evenly arranged along the circumference of the second end of the cylindrical core component.

46. ​​The crown-shaped brushless motor according to claim 37, wherein, The motor includes an opening on a rotor flange between the rotor and the stator, the opening being configured to ventilate the rotor and the stator.

47. The crown-shaped brushless motor according to claim 37, wherein, The plurality of first extensions and the plurality of second extensions extend toward the central layer of the cylindrical core.

48. The crown-shaped brushless motor according to claim 37, wherein, The plurality of first extensions and the plurality of second extensions extend outward toward the central surface of the cylindrical core.

49. The crown-shaped brushless motor according to claim 37, wherein, The plurality of first extensions and the plurality of second extensions extend inward toward the central surface of the cylindrical core.

50. The crown-shaped brushless motor according to claim 37, wherein, The plurality of first extensions include a first component connected to a first end of the cylindrical core component, the first component including a first circular base, and the plurality of first extensions extending from the first circular base.

51. The crown-shaped brushless motor according to claim 37, wherein, The plurality of second extensions include a second component connected to a second end of the cylindrical core component, the second component including a second circular base, and the plurality of second extensions extending from the second circular base.

52. The crown-shaped brushless motor according to claim 37, wherein, The first extension and the second extension are configured to guide the flow of magnetic flux from the first extension to the second extension.

53. The crown-shaped brushless motor of claim 52, wherein the magnetic flux is located outside the cylindrical core component.

54. The crown-shaped brushless motor of claim 52, wherein the magnetic flux is located inside the cylindrical core component.

55. The crown-shaped brushless motor of claim 37, wherein the plurality of first extensions and the plurality of second extensions are arranged alternately.

56. The crown-shaped brushless motor according to claim 37, wherein, Each extension of the first extension and each extension of the second extension are separated by a groove, which divides each extension into a pair of extensions.

57. The crown-shaped brushless motor according to claim 37, wherein, The groove is configured to redirect the magnetic flux from the rotor to the stator.

58. The crown-shaped brushless motor according to claim 38, wherein, The mechanical energy output of the crown-shaped brushless motor is controlled by one or more of the following: the shape of the first extension and the second extension, the magnetic flux direction between the first extension and the second extension, the polarity of the stator electromagnet, and the electrical energy applied to each of the stator electromagnets.

59. The crown-shaped brushless motor according to claim 37, wherein, The stator includes multiple electromagnets.

60. The crown-shaped brushless motor according to claim 59, wherein, The electromagnets are arranged radially around the rotation axis of the rotor.

61. The crown-shaped brushless motor according to claim 59, wherein, The electromagnet is attached to the stator.

62. The crown-shaped brushless motor according to claim 59, wherein, Each of the electromagnets in the stator surrounds the portion of the extension of the first extension and the portion of the extension of the second extension.

63. The crown-shaped brushless motor according to claim 59, wherein, Each of the plurality of electromagnets is polarizable to generate a repulsive force between the magnetic fields of one or more of the electromagnets and the magnetic field of the rotor.

64. The crown-shaped brushless motor according to claim 59, wherein, Each of the plurality of electromagnets is polarizable to generate an attractive force between the magnetic fields of one or more of the electromagnets and the magnetic field of the rotor.

65. The crown-shaped brushless motor according to claim 59, wherein, The stator is configured to adjust the torque and / or rotational speed of the cylindrical core component by activating one or more of the plurality of electromagnets.

66. The crown-shaped brushless motor according to claim 59, wherein, Each of the electromagnets is configured to periodically change its polarity and can be configured to interact with the magnetic field of the rotor to cause the cylindrical core component to rotate about the vertical axis of the cylindrical core component.

67. A method for activating a crown brushless motor, wherein the crown brushless motor comprises: Stator, including: Multiple electromagnets, The plurality of electromagnets are arranged radially around the rotor axis, and Rotor, comprising: Cylindrical core components, including permanent magnets; Multiple first extensions extend from the first end of the cylindrical core component, and Multiple second extensions extend from the second end of the cylindrical core component; Each of the plurality of first extensions and each of the plurality of second extensions are separated by a groove, the groove dividing each extension into a pair of extensions. The method includes the following steps: One or more electromagnets of the stator are magnetically activated to generate magnetization, thereby creating a repulsive force between the one or more electromagnets and the first portion of the extension pair, which in turn causes the rotor to rotate.

68. The method for activating a crown-shaped brushless motor according to claim 67, wherein, The method includes the following steps: One or more electromagnets of the stator are magnetically activated to produce magnetization, thereby generating an attractive force between the one or more electromagnets and the second portion of the extension pair.

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