Power components and fans

Abstract

The present invention provides a power assembly and a fan, wherein the power assembly includes a first packaging cover, a stator assembly, a first rotor assembly, and at least two supporting components; the first packaging cover is buckled on one side of the stator assembly; the stator assembly is provided with a first channel; the first rotor assembly includes a first rotating shaft and a first rotor, the first rotor is connected to the first rotating shaft, the first rotor can drive the first rotating shaft to rotate, the first rotor is arranged on one side of the stator assembly, an axial air gap is formed between the first rotor and the stator assembly, and the first rotating shaft is provided with a second channel; the first supporting component is connected to the first rotating shaft, arranged in the first channel, and connected to the stator assembly; the second supporting component is connected to the first rotating shaft and connected to the first packaging cover. The power assembly provided by the present invention, especially for power assemblies that need to rotate at high speed, at least two supporting components can better share the force exerted on the first rotating shaft, thereby improving the axial strength of the first rotating shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of power components, and in particular to a power component and a fan. Background Art

[0002] Currently, in order to improve the functionality of a power assembly, two output shafts may be provided on the same power assembly, and the two output shafts may output power at different rotational speeds.

[0003] In related technologies, to achieve dual output shafts on the same power assembly, a single stator assembly and two rotor assemblies are used, thereby achieving dual output on the same or both sides of the same power assembly. However, because both rotor assemblies are supported radially inwardly of the stator assembly, the axial distance between the two bearings of each rotor assembly is small, which reduces the strength of the rotating shaft and affects the stability of the power assembly. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present invention provides a power assembly.

[0006] A second aspect of the present invention provides a wind turbine.

[0007] In view of this, a first aspect of the present invention provides a power assembly, comprising a first packaging cover, a stator assembly, a first rotor assembly and at least two supporting components; the first packaging cover is buckled on one side of the stator assembly; the stator assembly is provided with a first channel; the first rotor assembly comprises a first rotating shaft and a first rotor, the first rotor is connected to the first rotating shaft, the first rotor can drive the first rotating shaft to rotate, the first rotor is arranged on one side of the stator assembly, an axial air gap is formed between the first rotor and the stator assembly, and the first rotating shaft is provided with a second channel; the first supporting component is connected to the first rotating shaft, arranged in the first channel, and connected to the stator assembly; the second supporting component is connected to the first rotating shaft and connected to the first packaging cover.

[0008] The power assembly provided by the present invention has a stator assembly and a rotor assembly arranged in a housing. When the stator assembly is powered on, it drives the rotor assembly to rotate, thereby achieving power output.

[0009] The power assembly further includes at least two supporting components, and the at least two supporting components are used to support the rotation of the first rotating shaft, thereby ensuring the stability of the first rotating shaft during the rotation process.

[0010] Furthermore, since one of the at least two supporting components is disposed in the first channel of the stator assembly and the other supporting component is disposed on the first packaging cover, the supporting component of the first rotating shaft is no longer limited to the first channel of the stator assembly, thereby extending the axial distance between the two supporting components so that the axial distance between the two supporting components is no longer restricted by the axial length of the stator assembly, thereby improving the axial strength of the first rotating shaft and improving the stability of the first rotating shaft during rotation.

[0011] Furthermore, since one supporting component is arranged in the first channel of the stator assembly and the other supporting component is arranged on the first packaging cover, at least two supporting components are respectively arranged on both sides of the rotor. In the process of the stator assembly driving the rotor, and then driving the first rotating shaft to rotate through the rotor, the at least two supporting components can better share the force exerted on the first rotating shaft, thereby making the force exerted on the first rotating shaft more uniform, further improving the axial strength of the first rotating shaft, and improving the stability of the first rotating shaft during rotation.

[0012] Especially for power components that need to rotate at high speed, at least two support components can better share the force applied to the first rotating shaft, thereby making the force applied to the first rotating shaft more uniform, further improving the axial strength of the first rotating shaft, and improving the stability of the first rotating shaft during rotation.

[0013] The first support component and the second support component are respectively arranged on both sides of the rotor. In the process of the stator assembly driving the rotor, and then driving the first rotating shaft to rotate through the rotor, the force point on the first rotating shaft is located between the first support component and the second support component, so that the first support component and the second support component can better share the force exerted on the first rotating shaft, thereby making the force on the first rotating shaft more uniform, further improving the axial strength of the first rotating shaft, and improving the stability of the first rotating shaft during rotation.

[0014] The first rotating shaft is provided with a second channel, and the power assembly also includes at least one third supporting component and a second rotor assembly; at least one third supporting component is provided in the second channel and is connected to the first rotating shaft; the second rotor assembly includes a second rotating shaft, and the second rotating shaft is inserted in at least one third supporting component.

[0015] The power assembly also includes a second rotor assembly, so that the power assembly has two sets of rotor assemblies at the same time, thereby improving the functionality of the power assembly.

[0016] And because the first rotating shaft is provided with a second channel, the second rotating shaft is arranged in the second channel, and the second rotating shaft is connected to the first rotating shaft through the third supporting component, so that the first rotating shaft and the second rotating shaft can rotate independently of each other, and thus the first rotating shaft and the second rotating shaft can output at different speeds at the same time.

[0017] Since the second rotating shaft is connected to the first rotating shaft through the third supporting component, while the first rotating shaft and the second rotating shaft can rotate independently of each other, the second rotating shaft can also be supported by the third supporting component to ensure the stability of the second rotating shaft during rotation.

[0018] Since a third supporting component is provided between the first rotating shaft and the second rotating shaft, friction caused by the end jumping of the first rotating shaft and the second rotating shaft is avoided, thereby ensuring the coaxiality between the first rotating shaft and the second rotating shaft, making the first rotating shaft and the second rotating shaft rotate more flexibly.

[0019] The at least one third support member is a third support member.

[0020] The at least one third supporting component is two third supporting components.

[0021] The power assembly further includes a fourth supporting component, which is sleeved on the second rotating shaft and connected to the stator assembly.

[0022] The fourth supporting component is arranged on the stator assembly and is located in the first channel. The fourth supporting component and the third supporting component jointly support the second rotating shaft, further improving the stability of the second rotating shaft during the rotation process.

[0023] And because the third supporting component is located in the second channel of the first rotating shaft and the fourth supporting component is located in the first channel of the stator assembly, the supporting component of the second rotating shaft is no longer limited to the first channel of the stator assembly, thereby extending the axial distance between the third supporting component and the fourth supporting component, so that the axial distance between the third supporting component and the fourth supporting component is no longer limited by the axial length of the stator assembly, thereby improving the axial strength of the second rotating shaft and improving the stability of the second rotating shaft during rotation.

[0024] In addition, the power assembly in the above technical solution provided by the present invention may also have the following additional technical features:

[0025] In one technical solution of the present invention, the first support component includes at least one bearing; and / or the second support component includes at least one bearing; and / or at least one third support component includes at least one bearing; and / or the fourth support component includes at least one bearing.

[0026] In this technical solution, the first supporting component, the second supporting component, the third supporting component and the fourth supporting component can all be bearings, thereby ensuring that the first supporting component, the second supporting component, the third supporting component and the fourth supporting component can more stably support the first rotating shaft and the second rotating shaft.

[0027] In one technical solution of the present invention, at least one third supporting component is a rolling bearing or a sliding bearing.

[0028] In one technical solution of the present invention, the first support component and the at least one third support component are respectively located on both sides of the first rotor in the axial direction.

[0029] In this technical solution, the first support component and the third support component are respectively located on both sides of the first rotor in the axial direction, so that the support points of the first support component and the third support component are respectively located on both sides of the first rotor, further improving the uniformity of the axial force distribution of each support component, thereby improving the reliability of the support.

[0030] In one technical solution of the present invention, the power assembly further includes a bearing seat assembly, the bearing seat assembly is disposed in the first channel, and one of the at least two supporting components is connected to the bearing seat assembly.

[0031] In this technical solution, the bearing seat assembly is arranged in the first channel and connected to the stator assembly. Among the at least two supporting components, the supporting component arranged in the first channel is connected to the support seat assembly, thereby supporting the supporting component arranged in the first channel, ensuring the stability of the supporting component, and thus ensuring the stability of the first rotating shaft during rotation.

[0032] Furthermore, the support component is installed and positioned by arranging a support seat assembly in the first channel. The support seat assembly can be processed separately, which simplifies the processing difficulty of the power assembly.

[0033] In one technical solution of the present invention, the bearing seat assembly includes a first bearing seat and a second bearing seat; the first support component is arranged in the first bearing seat; the second bearing seat is spaced apart from the first bearing seat, and the fourth support component is arranged in the second bearing seat.

[0034] In this technical solution, the bearing seat assembly includes a first bearing seat and a second bearing seat. The first bearing seat and the second bearing seat can respectively support the first support component and the fourth support component, thereby ensuring the stability of the first bearing and the second bearing during rotation.

[0035] In one technical solution of the present invention, the bearing seat assembly includes a connecting component, one side of the connecting component is connected to the first bearing seat, and the other side of the connecting component is connected to the second bearing seat.

[0036] In one technical solution of the present invention, the bearing seat assembly further includes a first cover plate and a second cover plate; the first cover plate is disposed on the first bearing seat to position the first support component; the second cover plate is disposed on the second bearing seat to position the fourth support component.

[0037] In this technical solution, a first cover plate is provided on the first bearing seat to position the first support component and prevent it from falling out of the first bearing seat. A second cover plate is provided on the second bearing seat to position the fourth support component and prevent it from falling out of the second bearing seat.

[0038] In one technical solution of the present invention, the second rotor assembly further includes a second rotor, which is sleeved on the second rotating shaft; wherein the first rotor is located on one side of the stator assembly in the axial direction, and the second rotor is located on the other side of the stator assembly in the axial direction.

[0039] In this technical solution, the second rotor and the first rotor are respectively located on both sides of the stator assembly, so that the stator assembly can drive the first rotor and the second rotor respectively, so that the first shaft and the second shaft can output power at different speeds, thereby improving the functionality of the power assembly.

[0040] In one technical solution of the present invention, the stator assembly includes a housing, a first stator and a second stator; the first stator is arranged in the housing and is adapted to the first rotor; the second stator is arranged in the housing, axially arranged with the first stator, and is adapted to the second rotor.

[0041] In this technical solution, the first stator is adapted to the first rotor, and the second stator is adapted to the second rotor, so that the rotational speeds of the first rotor and the second rotor can be controlled separately, thereby making the control of the power assembly more convenient.

[0042] In one technical solution of the present invention, the first stator and the second stator are fixedly connected, non-coupled, independent functional units, and form independent drive units with the first rotor assembly and the second rotor assembly respectively.

[0043] In one technical solution of the present invention, the first rotating shaft passes through the first packaging cover and extends to the outside of the shell.

[0044] In this technical solution, the first rotating shaft passes through the first packaging cover and extends to the outside of the housing to achieve power output. The first rotating shaft located outside the first packaging cover is the first shaft extension end, which can be connected to a load.

[0045] In a technical solution of the present invention, the power assembly further includes a second packaging cover, which is buckled onto the other side of the shell; the second rotating shaft passes through the second packaging cover and extends to the outside of the shell.

[0046] In this technical solution, the second packaging cover is buckled onto the shell to achieve sealing of the shell, prevent dust or impurities in the external environment from entering the interior of the shell, and ensure the flexibility of rotation of the first rotor assembly and the second rotor assembly.

[0047] Furthermore, the second rotating shaft passes through the second packaging cover, and the second rotating shaft located outside the second packaging cover is a second shaft extension end, which can be connected to a load, thereby enabling the power component to output a shaft in both directions to drive loads located in different directions.

[0048] A second protective cover is provided on the outside of the second packaging cover and is sleeved on the second rotating shaft.

[0049] In one technical solution of the present invention, the second rotating shaft passes through the first rotating shaft and extends toward the outside of the first rotating shaft.

[0050] In this technical solution, after the second rotating shaft passes through the first rotating shaft, the part of the second rotating shaft extending out of the first rotating shaft is the second shaft extension end, which can be connected to the load, so that the power component has two output shafts in the same direction to drive loads located in different directions.

[0051] One end of the second rotating shaft passes through the second packaging cover and extends to the outside of the shell, and the other end of the second rotating shaft passes through the first rotating shaft and extends to the outside of the first rotating shaft, so that the power component has three output ends at the same time, thereby driving three loads at the same time.

[0052] In a technical solution of the present invention, the power assembly further includes a third rotating shaft, which is inserted into the second channel and connected to the first rotating shaft.

[0053] In this technical solution, by setting up a third rotating shaft, the diameter of the third rotating shaft can be adjusted according to the load requirements, avoiding the first rotating shaft having an excessively large diameter due to the need to support the third supporting component, thereby improving the applicability of the power assembly.

[0054] In one technical solution of the present invention, the housing is a plastic component that covers the outside of the stator assembly to fix the stator assembly and the bearing seat assembly.

[0055] In this technical solution, the shell is a plastic part and is covered on the outside of the stator assembly. While achieving the installation and fixation of the stator assembly, it simplifies the assembly process of the power assembly, thereby reducing the difficulty of the power assembly and improving the assembly efficiency of the power assembly.

[0056] Since the shell is a plastic part, the stator assembly can be pre-embedded in the mold and then injection molded in one step, so that the shell is directly covered on the outside of the stator assembly, further simplifying the assembly process of the power assembly, thereby reducing the difficulty of the power assembly and improving the assembly efficiency of the power assembly.

[0057] When the stator assembly and the bearing seat assembly are embedded in the mold and injection molded in one step, a bearing chamber can be formed radially inside the shell, without the need for subsequent mechanical processing of the bearing chamber. By embedding the first support component and the fourth support component in the bearing chamber, support for the first rotating shaft and the second rotating shaft can be achieved, thereby reducing the number of parts of the power assembly and reducing the manufacturing and assembly process. In addition, multiple bearings are arranged inside the plastic body, which can also effectively reduce the axial height of the entire power assembly.

[0058] The shell is an injection molded body, and the stator assembly including the stator core, insulating frame, mounting frame, multiple pins, and the bearing seat assembly are fixedly connected into a whole, ensuring the stability of the power assembly. The outer diameter of the shell is larger than the maximum radial outer contour surface formed by all the components of the stator assembly, ensuring that these components are enclosed within the radial outer surface of the shell, thereby ensuring the integrity and regularity of the appearance of the power assembly and its insulation from the outside world. At the same time, the axial end face of the radial part of the shell that encloses the first stator tooth and the second stator tooth cannot exceed the axial end face formed by the tooth shoulders on both sides. In other words, the shell overmolding must not cover the axial outer surface of the tooth shoulder of the stator core, so as to facilitate more precise and effective control of the axial air gap between the tooth shoulder and the permanent magnet.

[0059] In one technical solution of the present invention, the first rotor includes a first rotor disk and a plurality of first magnetic members; the first rotor disk is sleeved on the first rotating shaft; the plurality of first magnetic members are arranged along the circumference of the first rotor disk and fit into at least one end face of the plurality of end faces of the first rotor disk in the axial direction.

[0060] In this technical solution, the first magnetic part is attached to the first rotor disk. While ensuring the performance of the power assembly of the first rotor, the number of parts is reduced, the structure of the first rotor is simplified, the processing and assembly of the first rotor are easier, and the processing cost and parts cost of the first rotor are reduced, thereby making the cost of the first rotor lower.

[0061] Furthermore, since the plurality of first magnetic parts are arranged along the circumference of the first rotor disk and fit in with at least one of the plurality of end faces of the first rotor disk in the axial direction, standard tooling can be used to position the first magnetic part when assembling the first magnetic part. There is no need to machine a positioning structure on the first rotor disk to position the first magnetic part, which simplifies the processing technology of the first rotor disk and further reduces the processing difficulty and cost of the first rotor.

[0062] The first magnetic member is a permanent magnet, and the N poles and S poles of two adjacent permanent magnets are arranged alternately, or the two adjacent permanent magnets are arranged in a Halbach array.

[0063] The plurality of first magnetic members are arranged on the same end surface of the first rotor disk and arranged along the circumference of the first rotor disk. The N poles and S poles of two adjacent first magnetic members are arranged alternately, or the two adjacent first magnetic members are arranged in a Halbach array.

[0064] Multiple first magnetic members are disposed on the end surfaces of both sides of the first rotor disk. The first magnetic members on a single end surface are arranged along the circumference of the first rotor disk. The north and south poles of two adjacent first magnetic members on the same end surface are alternately arranged, or two adjacent first magnetic members are arranged in a Halbach array. The first magnetic members on the two end surfaces are symmetrically arranged relative to the first rotor disk.

[0065] The first rotor disk is disk-shaped, so that the first rotor disk has a simple structure and a regular shape.

[0066] In one technical solution of the present invention, the first rotor disk includes a first magnetic conductive portion and a first connecting portion, a plurality of first magnetic members are arranged on the first magnetic conductive portion, the first magnetic conductive portion is arranged on a plurality of first connecting portions, and the first connecting portion is connected to the first rotating shaft.

[0067] The first connecting portion and the first rotating shaft are made of the same material, and the first connecting portion and the first rotating shaft are an integrated structure or a split structure.

[0068] In one technical solution of the present invention, the first rotor disk is a magnetically conductive metal part.

[0069] In one technical solution of the present invention, the second rotor includes a second rotor disk and a plurality of second magnetic members; the second rotor disk is sleeved on the second rotating shaft; the plurality of second magnetic members are arranged along the circumference of the second rotor disk and fit into at least one end face of the plurality of end faces of the second rotor disk in the axial direction.

[0070] In this technical solution, the second magnetic part is attached to the second rotor disk. While ensuring the performance of the power assembly of the second rotor, the number of parts is reduced, the structure of the second rotor is simplified, the processing and assembly of the second rotor are easier, and the processing cost and parts cost of the second rotor are reduced, thereby making the cost of the second rotor lower.

[0071] Furthermore, since the plurality of second magnetic parts are arranged along the circumference of the second rotor disk and fit in with at least one of the plurality of end faces of the second rotor disk in the axial direction, standard tooling can be used to position the second magnetic parts when assembling the second magnetic parts. There is no need to machine a positioning structure on the second rotor disk to position the second magnetic parts, which simplifies the processing technology of the second rotor disk and further reduces the processing difficulty and cost of the second rotor.

[0072] The second magnetic member is a permanent magnet, and the N poles and S poles of two adjacent permanent magnets are arranged alternately, or the two adjacent permanent magnets are arranged in a Halbach array.

[0073] The plurality of second magnetic members are disposed on the same end surface of the second rotor disk and arranged along the circumference of the second rotor disk. The N poles and S poles of two adjacent second magnetic members are arranged alternately, or the two adjacent second magnetic members are arranged in a Halbach array.

[0074] Multiple second magnetic members are disposed on the end surfaces of both sides of the second rotor disk. The second magnetic members on a single end surface are arranged along the circumference of the second rotor disk. The north and south poles of two adjacent second magnetic members on the same end surface are arranged alternately, or two adjacent second magnetic members are arranged in a Halbach array. The second magnetic members on the two end surfaces are symmetrically arranged relative to the second rotor disk.

[0075] The second rotor disk is disk-shaped, so that the second rotor disk has a simple structure and a regular shape.

[0076] In one technical solution of the present invention, the second rotor disk includes a second magnetic conductive portion and a second connecting portion, a plurality of second magnetic members are arranged on the second magnetic conductive portion, the second magnetic conductive portion is arranged on a plurality of second connecting portions, and the second connecting portions are connected to the second rotating shaft.

[0077] The second connecting portion and the second rotating shaft are made of the same material, and the second connecting portion and the second rotating shaft are an integrated structure or a split structure.

[0078] In one technical solution of the present invention, the second rotor disk is a magnetically conductive metal part.

[0079] For the rotor assembly, the magnetic conductive part, connecting part and rotating shaft of the rotor disk are fixedly connected. The three can be made into an integral part, or the magnetic conductive part and the connecting part can be made into an integral part, or the connecting part and the rotating shaft can be made into an integral part, and then formed into an integral structure through injection molding or welding. Threaded connection and interference fit can also be used to form a fixed structure, where at least the magnetic conductive part connected to the permanent magnet must be made of magnetic conductive material.

[0080] In one technical solution of the present invention, a stator assembly includes a stator core, a first winding, and a second winding. The stator core includes a stator yoke, a first stator tooth, and a second stator tooth. The first stator tooth and the second stator tooth are respectively disposed on opposite sides of the stator yoke. The first winding is wound around the first stator tooth, and the second winding is wound around the second stator tooth. A first channel is disposed within the stator core.

[0081] The stator core includes a stator yoke, first stator teeth, and second stator teeth, which not only helps reduce the difficulty of machining the stator core but also reduces the difficulty of winding the first and second windings. The stator yoke can be formed by laminating multiple stator stampings, and the first and second stator teeth can also be formed by laminating multiple stator stampings. Of course, the stator core can also be a one-piece structure.

[0082] In one technical solution of the present invention, the stator yoke is provided with a plurality of slots along the circumferential direction, and any one of the plurality of slots extends radially along the stator yoke. The first stator tooth and the second stator tooth are engaged in the plurality of slots, so that the stator core structure is simple, easy to process, and easy to assemble.

[0083] The first stator tooth and the second stator tooth both include a body, a first clamping portion and a second clamping portion. The first clamping portion and the second clamping portion are respectively located on both sides of the body. The body is arranged along the axial direction of the rotating shaft, and the first winding or the second winding is wound on the body.

[0084] When the first winding or the second winding is wound on the main body, one side of the first winding or the second winding in the axial direction cooperates with the first clamping part, and the stator yoke is annular and clamped on the second clamping part, cooperating with the other side of the first winding or the second winding in the axial direction, so that the stator yoke and the first clamping part fix the first winding or the second winding on the main body.

[0085] The first stator tooth and the second stator tooth may be an integrated structure or a split structure.

[0086] In one technical solution of the present invention, the stator assembly further includes an insulating frame, a mounting frame and a plurality of pins.

[0087] The insulating frame is sleeved over the first stator tooth and / or the second stator tooth, and the first winding and / or the second winding are wound around the insulating frame. The mounting frame is fixedly connected to the insulating frame; a plurality of pins are inserted into the mounting frame, and the lead wires of the first winding and the second winding are fixedly connected to the plurality of pins.

[0088] The mounting frame is connected to the insulating frame sleeved over the first stator teeth or the insulating frame sleeved over the second stator teeth. It is a curved strip structure coaxial with the stator assembly, and the mounting frame and multiple pins are located radially outward of the first and second rotors. This makes the power assembly structure relatively neat, less likely to interfere with the internal magnetic field of the power assembly, and facilitates connection to external circuits.

[0089] In one technical solution of the present invention, the power assembly further includes an electric control board, which is built between the first rotor disk and the first packaging cover, or between the second rotor disk and the second packaging cover.

[0090] The setting of the electronic control board is conducive to the realization of automatic control of the power component; setting the electronic control board on either side of the power component and between the rotor component and the packaging cover on that side not only ensures the stability of the electronic control board, but also facilitates the circuit output of the electronic control board.

[0091] A second aspect of the present invention provides a wind turbine comprising a power assembly according to any of the above technical solutions, and thus the wind turbine comprises all the beneficial effects of the power assembly according to any of the above technical solutions.

[0092] The power component is the motor.

[0093] In one technical solution of the present invention, the fan also includes a first fan blade and a second fan blade. The first fan blade is mounted on the first shaft extension end of the first rotating shaft, and the second fan blade is mounted on the second shaft extension end of the second rotating shaft. The first fan blade and the second fan blade can rotate at different speeds according to actual needs.

[0094] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0096] Figure 1 A schematic structural diagram of a power assembly according to an embodiment of the present invention is shown;

[0097] Figure 2 A schematic structural diagram of a power assembly according to another embodiment of the present invention is shown;

[0098] Figure 3 A schematic structural diagram of a power assembly according to another embodiment of the present invention is shown;

[0099] Figure 4 A schematic structural diagram of a power assembly according to another embodiment of the present invention is shown;

[0100] Figure 5 A schematic structural diagram of a power assembly according to another embodiment of the present invention is shown;

[0101] Figure 6 shows an exploded view of a power assembly according to one embodiment of the present invention;

[0102] Figure 7 shows a schematic structural diagram of a stator assembly according to one embodiment of the present invention;

[0103] Figure 8A structural schematic diagram of a wind turbine according to an embodiment of the present invention is shown.

[0104] in, Figures 1 to 8 The corresponding relationship between the reference numerals and component names is as follows:

[0105] 100 Power assembly, 110 Housing, 122 First packaging cover, 124 Second packaging cover, 130 Stator assembly, 131 First stator, 132 Second stator, 133 Stator core, 1332 Stator yoke, 1334 First stator tooth, 1336 Second stator tooth, 134 Insulation frame, 135 Mounting frame, 136 Pin, 140 First rotor assembly, 142 First rotating shaft, 144 First rotor, 1442 First rotor disk, 1444 First magnetic member, 1446 First magnetic conductive portion, 1448 First connecting portion, 152 First protective cover, 154 Second protective cover, 160 bearing seat assembly, 161 first bearing seat, 162 connecting component, 163 second bearing seat, 164 first cover plate, 165 second cover plate, 172 first supporting component, 174 second supporting component, 176 third supporting component, 178 fourth supporting component, 180 second rotor assembly, 182 second rotor, 1822 second rotor disk, 1824 second magnetic member, 1826 second magnetic conductive portion, 1828 second connecting portion, 184 second rotating shaft, 192 third rotating shaft, 194 electronic control board, 200 first fan blade, 300 second fan blade. DETAILED DESCRIPTION

[0106] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0107] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0108] Refer to the following Figures 1 to 8 The power assembly 100 and the fan according to some embodiments of the present invention are described.

[0109] Example 1:

[0110] like Figure 1 and Figure 2As shown, the present invention provides a power assembly 100, including a first packaging cover 122, a stator assembly 130, a first rotor assembly 140 and at least two supporting components; the first packaging cover 122 is buckled on one side of the stator assembly 130; the stator assembly 130 is arranged in the shell 110 and is provided with a first channel; the first rotor assembly 140 includes a first rotating shaft 142 and a first rotor 144, the first rotor 144 is connected to the first rotating shaft 142, the first rotor 144 can drive the first rotating shaft to rotate 142, the first rotor 144 is arranged on one side of the stator assembly 130, and an axial air gap is formed between it and the stator assembly 130, and the first rotating shaft 142 is provided with a second channel; the first supporting component 172 is connected to the first rotating shaft 142, is arranged in the first channel, and is connected to the stator assembly 130; the second supporting component 174 is connected to the first rotating shaft 142 and is connected to the first packaging cover 122.

[0111] In this embodiment, a stator assembly 130 and a rotor assembly are disposed in the housing 110 . The stator assembly 130 drives the rotor assembly to rotate when powered, thereby achieving power output.

[0112] The power assembly 100 further includes at least two supporting components, and the at least two supporting components are used to support the rotation of the first rotating shaft 142, thereby ensuring the stability of the first rotating shaft 142 during the rotation process.

[0113] And because one of the at least two supporting components is arranged in the first channel of the stator assembly 130 and the other supporting component is arranged on the first packaging cover 122, the supporting component of the first rotating shaft 142 is no longer limited to the first channel of the stator assembly 130, thereby extending the axial distance between the two supporting components, so that the axial distance between the two supporting components is no longer limited by the axial length of the stator assembly 130, thereby improving the axial strength of the first rotating shaft 142 and improving the stability of the first rotating shaft 142 during rotation.

[0114] Furthermore, since one supporting component is disposed in the first channel of the stator assembly 130 and the other supporting component is disposed on the first packaging cover 122, at least two supporting components are respectively disposed on both sides of the rotor. In the process in which the stator assembly 130 drives the rotor, and then the rotor drives the first rotating shaft 142 to rotate, the at least two supporting components can better share the force exerted on the first rotating shaft 142, thereby making the force exerted on the first rotating shaft 142 more uniform, further improving the axial strength of the first rotating shaft 142, and improving the stability of the first rotating shaft 142 during rotation.

[0115] Especially for the power component 100 that needs to rotate at high speed, at least two support components can better share the force exerted on the first rotating shaft 142, thereby making the force exerted on the first rotating shaft 142 more uniform, further improving the axial strength of the first rotating shaft 142, and improving the stability of the first rotating shaft 142 during rotation.

[0116] The supporting components are bearings, and multiple bearings are disposed on both sides of the first rotor 144 in the axial direction of the first rotating shaft 142. This disperses support for multiple locations of the first rotating shaft 142, thereby improving the support reliability of the first rotating shaft 142 and significantly reducing the risk of the first rotating shaft 142 tilting, thereby improving the reliability of the rotor assembly.

[0117] There are two bearings, which can effectively improve the support reliability of the first rotating shaft 142 and reduce the number of components, thus saving production costs.

[0118] The supporting component is a needle roller. A plurality of needle rollers are arranged in the circumferential direction of the first rotating shaft 142 . The needle rollers cooperate with the stator assembly 130 or the first packaging cover 122 to support the first rotating shaft 142 .

[0119] The supporting component is a connecting ring, which is sleeved on the first rotating shaft 142. The inner wall of the connecting ring is a smooth surface, and the first rotating shaft 142 can rotate relative to the connecting ring.

[0120] The first packaging cover 122 is externally mounted on the first protective cover 152 , and the first protective cover 152 is sleeved on the first rotating shaft 142 .

[0121] The first support component 172 and the second support component 174 are respectively arranged on both sides of the rotor. When the stator assembly 130 drives the rotor, and then the rotor drives the first rotating shaft 142 to rotate, the force point on the first rotating shaft 142 is located between the first support component 172 and the second support component 174, so that the first support component 172 and the second support component 174 can better share the force exerted on the first rotating shaft 142, thereby making the force on the first rotating shaft 142 more uniform, further improving the axial strength of the first rotating shaft 142, and improving the stability of the first rotating shaft 142 during rotation.

[0122] like Figure 1 and Figure 2 As shown, the first rotating shaft 142 is provided with a second channel, and the power assembly 100 also includes at least one third support component 176 and a second rotor assembly 180; at least one third support component 176 is provided in the second channel and is connected to the first rotating shaft 142; the second rotor assembly 180 includes a second rotating shaft 184, and the second rotating shaft 184 is inserted in at least one third support component 176.

[0123] The power assembly 100 further includes a second rotor assembly 180 , so that the power assembly 100 has two sets of rotor assemblies, thereby improving the functionality of the power assembly 100 .

[0124] And since the first rotating shaft 142 is provided with a second channel, the second rotating shaft 184 is passed through the second channel, and the second rotating shaft 184 is connected to the first rotating shaft 142 through the third supporting component 176, so that the first rotating shaft 142 and the second rotating shaft 184 can rotate independently of each other, and thus the first rotating shaft 142 and the second rotating shaft 184 can output at different speeds at the same time.

[0125] Since the second rotating shaft 184 is connected to the first rotating shaft 142 through the third supporting component 176, while the first rotating shaft 142 and the second rotating shaft 184 can rotate independently of each other, the second rotating shaft 184 can also be supported by the third supporting component 176 to ensure the stability of the second rotating shaft 184 during rotation.

[0126] Since the third supporting component 176 is provided between the first rotating shaft 142 and the second rotating shaft 184, friction caused by the end jumping of the first rotating shaft 142 and the second rotating shaft 184 is avoided, thereby ensuring the coaxiality between the first rotating shaft 142 and the second rotating shaft 184, making the first rotating shaft 142 and the second rotating shaft 184 rotate more flexibly.

[0127] like Figure 1 As shown, the at least one third support member 176 is a third support member 176 .

[0128] like Figure 5 As shown, the at least one third support member 176 is two third support members 176 .

[0129] like Figure 1 and Figure 2 As shown, the power assembly 100 further includes a fourth support component 178 . The fourth support component 178 is sleeved on the second rotating shaft 184 and connected to the stator assembly 130 .

[0130] The fourth support member 178 is disposed on the stator assembly 130 and is located in the first channel. The fourth support member 178 and the third support member 176 jointly support the second rotating shaft 184 to further enhance the stability of the second rotating shaft 184 during rotation.

[0131] And because the third support component 176 is located in the second channel of the first rotating shaft 142 and the fourth support component 178 is located in the first channel of the stator assembly 130, the support component of the second rotating shaft 184 is no longer limited to the first channel of the stator assembly 130, thereby extending the axial distance between the third support component 176 and the fourth support component 178, so that the axial distance between the third support component 176 and the fourth support component 178 is no longer limited by the axial length of the stator assembly 130, thereby improving the axial strength of the second rotating shaft 184 and improving the stability of the second rotating shaft 184 during rotation.

[0132] Example 2:

[0133] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0134] The first support member 172 includes at least one bearing; and / or the second support member 174 includes at least one bearing; and / or the at least one third support member 176 includes at least one bearing; and / or the fourth support member 178 includes at least one bearing.

[0135] In this embodiment, the first support member 172, the second support member 174, the third support member 176 and the fourth support member 178 can all be bearings, thereby ensuring that the first support member 172, the second support member 174, the third support member 176 and the fourth support member 178 can more stably support the first rotating shaft 142 and the second rotating shaft 184.

[0136] Example 3:

[0137] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0138] The at least one third support member 176 is a rolling bearing or a sliding bearing.

[0139] Example 4:

[0140] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0141] The first support member 172 and the at least one third support member 176 are respectively located on both sides of the first rotor 144 in the axial direction.

[0142] In this embodiment, the first support component 172 and the third support component 176 are respectively located on both sides of the first rotor 144 in the axial direction, so that the support points of the first support component 172 and the third support component 176 are respectively located on both sides of the first rotor 144, further improving the uniformity of the axial force distribution of each support component, thereby improving the reliability of the support.

[0143] Embodiment 5:

[0144] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0145] like Figure 1 and Figure 2 As shown, the power assembly 100 further includes a bearing seat assembly 160 , which is disposed in the first channel, and one of the at least two supporting components is connected to the bearing seat assembly 160 .

[0146] In this embodiment, the bearing seat assembly 160 is disposed in the first channel and connected to the stator assembly 130. Among the at least two supporting components, the supporting component disposed in the first channel is connected to the support seat assembly, thereby supporting the supporting component disposed in the first channel, ensuring the stability of the supporting component, and further ensuring the stability of the first rotating shaft 142 during rotation.

[0147] Furthermore, the support component is installed and positioned by arranging a support seat assembly in the first channel. The support seat assembly can be processed separately, which simplifies the processing difficulty of the power assembly.

[0148] Example 6:

[0149] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0150] like Figure 1 As shown, the bearing seat assembly 160 includes a first bearing seat 161 and a second bearing seat 163; the first support component 172 is arranged in the first bearing seat 161; the second bearing seat 163 is spaced apart from the first bearing seat 161, and the third support component 176 is arranged in the second bearing seat 163.

[0151] In this embodiment, the bearing seat assembly 160 includes a first bearing seat 161 and a second bearing seat 163. The first bearing seat 161 and the second bearing seat 163 can respectively support the first support component and the third support component, thereby ensuring the stability of the first bearing and the second bearing during rotation.

[0152] The bearing seat assembly 160 includes a connecting component 162 , one side of the connecting component 162 is connected to the first bearing seat 161 , and the other side of the connecting component 162 is connected to the second bearing seat 163 .

[0153] The first bearing seat 161 and the second bearing seat 163 are connected by a connecting component 162. The connecting component 162 can axially position the first bearing seat 161 and the second bearing seat 163, thereby ensuring the position accuracy of the first bearing seat 161 and the second bearing seat 163.

[0154] The first bearing seat 161, the connecting part 162 and the second bearing seat 163 are an integrated structure to ensure the coaxiality between the first bearing seat 161 and the second bearing seat 163, thereby ensuring the rotation accuracy of the rotor system; and the first bearing seat 161, the connecting part 162 and the second bearing seat 163 are an integrated structure, so that the bearing seat assembly 160 has better structural rigidity, so that the support for the first bearing and the second bearing is more stable.

[0155] The first bearing seat 161, the connecting component 162 and the second bearing seat 163 are split structures, so that the first bearing seat 161, the connecting component 162 and the second bearing seat 163 can be processed separately and then assembled, which reduces the processing difficulty of the bearing seat assembly 160 and reduces the processing cost of the bearing seat assembly 160.

[0156] Embodiment seven:

[0157] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0158] like Figure 1 As shown, the bearing seat assembly 160 also includes a first cover plate 164 and a second cover plate 165; the first cover plate 164 is covered on the first bearing seat 161 to position the first support component 172; the second cover plate 165 is covered on the second bearing seat 163 to position the fourth support component 178.

[0159] In this embodiment, the first cover plate 164 is disposed on the first bearing seat 161 to position the first support member 172 and prevent the first support member 172 from falling out of the first bearing seat 161. The second cover plate 165 is disposed on the second bearing seat 163 to position the fourth support member 178 and prevent the fourth support member 178 from falling out of the second bearing seat 163.

[0160] Embodiment 8:

[0161] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0162] like Figure 1 and Figure 2 As shown, the second rotor assembly 180 further includes a second rotor 182 , which is sleeved on the second rotating shaft 184 ; wherein the first rotor 144 is located on one side of the stator assembly 130 in the axial direction, and the second rotor 182 is located on the other side of the stator assembly 130 in the axial direction.

[0163] In this embodiment, the second rotor 182 and the first rotor 144 are respectively located on both sides of the stator assembly 130, so that the stator assembly 130 can drive the first rotor 144 and the second rotor 182 respectively, so that the first rotating shaft 142 and the second rotating shaft 184 can output power at different speeds, thereby improving the functionality of the power assembly 100.

[0164] Embodiment 9:

[0165] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0166] like Figure 3 and Figure 4 As shown, the stator assembly 130 includes a housing 110, a first stator 131 and a second stator 132; the first stator 131 is arranged in the housing 110 and is adapted to the first rotor 144; the second stator 132 is arranged in the housing 110, axially arranged with the first stator 131, and is adapted to the second rotor 182.

[0167] In this embodiment, the first stator 131 is adapted to the first rotor 144 , and the second stator 132 is adapted to the second rotor 182 , so that the rotational speeds of the first rotor 144 and the second rotor 182 can be controlled separately, thereby making control of the power assembly 100 more convenient.

[0168] Specifically, a first stator 131 and a second stator 132 are provided at both axial ends of the stator assembly 130, respectively. A first encapsulating cover 122 is fixedly mounted on the side of the stator assembly 130 where the first stator 131 is located. The first stator 131 and the first rotor 144 are axially opposed to each other, forming an axial air gap. The second encapsulating cover 124 is fixedly mounted on the side of the stator assembly 130 where the second stator 132 is located. The second stator 132 and the second rotor 182 are axially opposed to each other, forming an axial air gap.

[0169] The first stator 131 and the second stator 132 are fixedly connected, non-coupled, independent functional units, and form independent driving units with the first rotor assembly 140 and the second rotor assembly 180 respectively.

[0170] Specifically, there is no electromagnetic connection between the first stator 131 and the second stator 132. An axial magnetic flux is generated between the first stator 131 and the first rotor 144, driving the first rotating shaft 142 to independently move the load. Simultaneously, an axial magnetic flux is generated between the second stator 132 and the second rotor 182, driving the second rotating shaft 184 to independently move the load. The first stator 131 and the second stator 132 are fixedly connected and form the stator assembly 130. The two can be fixedly connected by threaded connection, injection molding, or other methods.

[0171] This solution is equivalent to two independent power assemblies 100 connected in series, sharing a common power assembly 100 housing. Structurally, dual output functionality is achieved through the nested arrangement of two output shafts, allowing the two drive components to operate independently. The two electromagnetic components of this power assembly 100 are designed independently and can be implemented using traditional design methods, resulting in low design costs.

[0172] Embodiment 10:

[0173] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0174] like Figure 1 and Figure 2 As shown, the first rotating shaft 142 passes through the first packaging cover 122 and extends toward the outside of the housing 110 .

[0175] In this embodiment, the first rotating shaft 142 passes through the first packaging cover 122 and extends to the outside of the housing 110 to achieve power output. The first rotating shaft 142 located outside the first packaging cover 122 is a first shaft extension end that can be connected to a load.

[0176] Example 11:

[0177] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0178] like Figure 3 As shown, the power assembly 100 further includes a second packaging cover 124 , which is buckled onto the other side of the housing 110 ; the second rotating shaft 184 passes through the second packaging cover 124 and extends toward the outside of the housing 110 .

[0179] In this embodiment, the second packaging cover 124 is buckled onto the shell 110 to achieve sealing of the shell 110, preventing dust or impurities in the external environment from entering the shell 110, and ensuring the flexibility of rotation of the first rotor assembly 140 and the second rotor assembly 180.

[0180] Furthermore, the second rotating shaft 184 passes through the second packaging cover 124 . The second rotating shaft 184 outside the second packaging cover 124 is a second shaft extension end that can be connected to a load, thereby enabling the power assembly 100 to output a shaft in both directions to drive loads in different directions.

[0181] A second protective cover 154 is disposed outside the second packaging cover 124 and sleeved on the second rotating shaft 184 .

[0182] Example 12:

[0183] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0184] like Figure 1 and Figure 2 As shown, the second rotating shaft 184 passes through the first rotating shaft 142 and extends toward the outside of the first rotating shaft 142 .

[0185] In this embodiment, after the second rotating shaft 184 passes through the first rotating shaft 142, the portion of the second rotating shaft 184 extending from the first rotating shaft 142 is a second shaft extension end, which can be connected to a load, so that the power component 100 has two output shafts in the same direction to drive loads located in different directions.

[0186] One end of the second rotating shaft 184 passes through the second packaging cover 124 and extends to the outside of the shell 110. The other end of the second rotating shaft 184 passes through the first rotating shaft 142 and extends to the outside of the first rotating shaft 142, so that the power component 100 has three output ends at the same time, thereby driving three loads at the same time.

[0187] Example 13:

[0188] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0189] like Figure 4 As shown, the power assembly 100 further includes a third rotating shaft 192 . The third rotating shaft 192 is inserted into the second channel and connected to the first rotating shaft 142 .

[0190] In this embodiment, by providing the third rotating shaft 192, the diameter of the third rotating shaft 192 can be adjusted according to the load requirements, thereby avoiding the first rotating shaft 142 having an excessively large diameter due to the need for the first rotating shaft 142 to support the third supporting component 176, thereby improving the applicability of the power assembly 100.

[0191] When the third support component 176 adopts a sliding bearing, the third rotating shaft 192 and the first rotating shaft 142 can be set as an integrated structure, which can ensure the connection accuracy while ensuring that the radial interface size of the output end of the first rotor assembly 140 is not too large, thereby ensuring reliable connection of the load.

[0192] When third support member 176 utilizes a rolling bearing, third rotating shaft 192 and first rotating shaft 142 are configured as separate structures. This improves load-bearing capacity while ensuring that the radial interface dimension of the output end of first rotor assembly 140 is not excessively large. Of course, as long as the load interface dimension allows, third rotating shaft 192 and first rotating shaft 142 can also be configured as an integrated structure when using rolling bearings, thereby achieving both high load-bearing capacity and high connection precision.

[0193] Example 14:

[0194] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0195] like Figure 1 and Figure 2 As shown, the housing 110 is a plastic component, which covers the exterior of the stator assembly 130 to fix the stator assembly 130 and the bearing seat assembly 160 .

[0196] In this embodiment, the housing 110 is a plastic part and is covered on the outside of the stator assembly 130. While achieving the installation and fixation of the stator assembly 130, it simplifies the assembly process of the power assembly 100, thereby reducing the difficulty of the power assembly 100 and improving the assembly efficiency of the power assembly 100.

[0197] Since the shell 110 is a plastic part, the stator assembly 130 can be pre-embedded in the mold and then injection molded in one step, so that the shell is directly covered on the outside of the stator assembly 130, further simplifying the assembly process of the power assembly 100, thereby reducing the difficulty of the power assembly 100 and improving the assembly efficiency of the power assembly 100.

[0198] By pre-embedding the stator assembly 130 and the bearing seat assembly 160 in the mold and performing injection molding in one step, a bearing chamber can be formed radially inside the housing 110, without the need for subsequent mechanical processing of the bearing chamber. By embedding the first support component 172 and the fourth support component 178 in the bearing chamber, support for the first rotating shaft 142 and the second rotating shaft 184 can be achieved, thereby reducing the number of parts of the power component 100 and reducing the manufacturing and assembly process. In addition, multiple bearings are arranged inside the plastic body, which can also effectively reduce the axial height of the entire power component 100.

[0199] The housing 110 is an injection molded body, and the stator assembly 130 including the stator core 133, the insulating frame 134, the mounting frame 135, and the multiple pins 136 and the bearing seat assembly 160 are fixedly connected into a whole, thereby ensuring the stability of the power assembly 100. In addition, the outer diameter of the housing 110 is larger than the maximum radial outer contour surface formed by all the components of the stator assembly 130, ensuring that these components are covered within the radial outer surface of the housing 110, thereby ensuring the integrity and regularity of the appearance of the power assembly 100 and its insulation from the outside world. At the same time, the axial end face of the radial part of the housing 110 that encloses the first stator tooth 1334 and the second stator tooth 1336 cannot exceed the axial end face formed by the tooth shoulders on both sides. In other words, the housing 110 plastic wrapping must not cover the axial outer surface of the tooth shoulder of the stator core 133, so as to facilitate more precise and effective control of the axial air gap between the tooth shoulder and the permanent magnet.

[0200] Embodiment 15:

[0201] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0202] like Figure 6 and Figure 7 As shown, the first rotor 144 includes a first rotor disk 1442 and a plurality of first magnetic members 1444; the first rotor disk 1442 is sleeved on the first rotating shaft 142; the plurality of first magnetic members 1444 are arranged along the circumference of the first rotor disk 1442, and fit with at least one end face of the plurality of end faces of the first rotor disk 1442 in the axial direction.

[0203] In this embodiment, the first magnetic member 1444 is attached to the first rotor disk 1442. While ensuring the performance of the power assembly 100 of the function of the first rotor 144, the number of parts is reduced, the structure of the first rotor 144 is simplified, and the processing and assembly of the first rotor 144 are easier, thereby reducing the processing cost and parts cost of the first rotor 144, thereby making the cost of the first rotor 144 lower.

[0204] And because multiple first magnetic parts 1444 are arranged along the circumference of the first rotor disk 1442, they fit together with at least one of the multiple end faces of the first rotor disk 1442 in the axial direction. Therefore, when assembling the first magnetic part 1444, standard tooling can be used to position the first magnetic part 1444. There is no need to process a positioning structure on the first rotor disk 1442 to position the first magnetic part 1444, which simplifies the processing technology of the first rotor disk 1442 and further reduces the processing difficulty and processing cost of the first rotor 144.

[0205] The first magnetic member 1444 is a permanent magnet, and the north poles and south poles of two adjacent permanent magnets are arranged alternately, or the two adjacent permanent magnets are arranged in a Halbach array.

[0206] Multiple first magnetic members 1444 are disposed on the same end surface of the first rotor disk 1442 and arranged along the circumference of the first rotor disk 1442. The north and south poles of two adjacent first magnetic members 1444 are arranged alternately, or two adjacent first magnetic members 1444 are arranged in a Halbach array.

[0207] Multiple first magnetic members 1444 are disposed on the end surfaces of both sides of the first rotor disk 1442. The first magnetic members 1444 on a single end surface are arranged circumferentially along the first rotor disk 1442. The north and south poles of two adjacent first magnetic members 1444 on the same end surface are alternately arranged, or two adjacent first magnetic members 1444 are arranged in a Halbach array. The first magnetic members 1444 on the two end surfaces are symmetrically arranged relative to the first rotor disk 1442.

[0208] The first rotor disk 1442 is disk-shaped, so that the first rotor disk 1442 has a simple structure and a regular shape.

[0209] Example 16:

[0210] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0211] like Figure 2 and Figure 4 As shown, the first rotor disk 1442 includes a first magnetic conductive portion 1446 and a first connecting portion 1448 . A plurality of first magnetic members 1444 are disposed on the first magnetic conductive portion 1446 . The first magnetic conductive portion 1446 is disposed on a plurality of first connecting portions 1448 . The first connecting portion 1448 is connected to the first rotating shaft 142 .

[0212] The first connection portion 1448 and the first rotation shaft 142 are made of the same material, and the first connection portion 1448 and the first rotation shaft 142 are an integrated structure or a separate structure.

[0213] The first rotor disk 1442 is a magnetically conductive metal member.

[0214] Embodiment 17:

[0215] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0216] like Figure 2 and Figure 4As shown, the second rotor 182 includes a second rotor disk 1822 and a plurality of second magnetic members 1824; the second rotor disk 1822 is sleeved on the second rotating shaft 184; the plurality of second magnetic members 1824 are arranged along the circumference of the second rotor disk 1822, and fit with at least one end face of the plurality of end faces of the second rotor disk 1822 in the axial direction.

[0217] In this embodiment, the second magnetic member 1824 is attached to the second rotor disk 1822. While ensuring the performance of the power assembly 100 of the second rotor 182, the number of parts is reduced, the structure of the second rotor 182 is simplified, and the processing and assembly of the second rotor 182 are easier, thereby reducing the processing cost and parts cost of the second rotor 182, thereby making the cost of the second rotor 182 lower.

[0218] And because multiple second magnetic parts 1824 are arranged along the circumference of the second rotor disk 1822, they fit together with at least one of the multiple end faces of the second rotor disk 1822 in the axial direction. Therefore, when assembling the second magnetic part 1824, standard tooling can be used to position the second magnetic part 1824. There is no need to process a positioning structure on the second rotor disk 1822 to position the second magnetic part 1824, which simplifies the processing technology of the second rotor disk 1822 and further reduces the processing difficulty and processing cost of the second rotor 182.

[0219] The second magnetic member 1824 is a permanent magnet, and the north poles and south poles of two adjacent permanent magnets are arranged alternately, or the two adjacent permanent magnets are arranged in a Halbach array.

[0220] Multiple second magnetic members 1824 are disposed on the same end surface of the second rotor disk 1822 and arranged along the circumference of the second rotor disk 1822. The north and south poles of two adjacent second magnetic members 1824 are arranged alternately, or two adjacent second magnetic members 1824 are arranged in a Halbach array.

[0221] Multiple second magnetic members 1824 are disposed on the end surfaces of both sides of the second rotor disk 1822. The second magnetic members 1824 on a single end surface are arranged circumferentially along the second rotor disk 1822. The north and south poles of two adjacent second magnetic members 1824 on the same end surface are alternately arranged, or two adjacent second magnetic members 1824 are arranged in a Halbach array. The second magnetic members 1824 on the two end surfaces are symmetrically arranged relative to the second rotor disk 1822.

[0222] The second rotor disk 1822 is disk-shaped, so that the second rotor disk 1822 has a simple structure and a regular shape.

[0223] Embodiment 18:

[0224] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0225] like Figure 2 and Figure 4 As shown, the second rotor disk 1822 includes a second magnetic conductive portion 1826 and a second connecting portion 1828 . A plurality of second magnetic members 1824 are disposed on the second magnetic conductive portion 1826 . The second magnetic conductive portion 1826 is disposed on a plurality of second connecting portions 1828 . The second connecting portions 1828 are connected to the second rotating shaft 184 .

[0226] The second connection portion 1828 and the second rotation shaft 184 are made of the same material, and the second connection portion 1828 and the second rotation shaft 184 are an integral structure or a separate structure.

[0227] Embodiment 19:

[0228] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0229] The second rotor disk 1822 is a magnetically conductive metal member.

[0230] For the rotor assembly, the magnetic conductive part, connecting part and rotating shaft of the rotor disk are fixedly connected. The three can be made into an integral part, or the magnetic conductive part and the connecting part can be made into an integral part, or the connecting part and the rotating shaft can be made into an integral part, and then formed into an integral structure through injection molding or welding. Threaded connection and interference fit can also be used to form a fixed structure, where at least the magnetic conductive part connected to the permanent magnet must be made of magnetic conductive material.

[0231] Embodiment 20:

[0232] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0233] like Figure 7 As shown, stator assembly 130 includes a stator core 133, a first winding, and a second winding. Stator core 133 includes a stator yoke 1332, a first stator tooth 1334, and a second stator tooth 1336. First stator tooth 1334 and second stator tooth 1336 are respectively disposed on either side of stator yoke 1332. The first winding is wound around first stator tooth 1334, and the second winding is wound around second stator tooth 1336. A first channel is disposed within stator core 133.

[0234] The stator core 133 includes a stator yoke 1332, a first stator tooth 1334, and a second stator tooth 1336. This reduces both the difficulty of machining the stator core 133 and the difficulty of winding the first and second windings. The stator yoke 1332 can be formed by laminating multiple stator stampings, and the first and second stator teeth 1334, 1336 can also be formed by laminating multiple stator stampings. Alternatively, the stator core 133 can be a one-piece structure.

[0235] Embodiment 21:

[0236] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0237] like Figure 7 As shown, the stator yoke 1332 is provided with a plurality of slots along the circumferential direction, and any one of the plurality of slots extends radially along the stator yoke 1332. The first stator tooth 1334 and the second stator tooth 1336 are engaged in the plurality of slots, so that the stator core 133 has a simple structure, is easy to process, and is also easy to assemble.

[0238] The first stator tooth 1334 and the second stator tooth 1336 both include a body, a first clamping portion and a second clamping portion. The first clamping portion and the second clamping portion are respectively located on both sides of the body. The body is arranged along the axial direction of the rotating shaft, and the first winding or the second winding is wound on the body.

[0239] When the first winding or the second winding is wound on the main body, one side of the first winding or the second winding in the axial direction cooperates with the first clamping part, and the stator yoke 1332 is annular and clamped on the second clamping part, cooperating with the other side of the first winding or the second winding in the axial direction, so that the stator yoke 1332 and the first clamping part fix the first winding or the second winding on the main body.

[0240] The first stator tooth 1334 and the second stator tooth 1336 may be an integral structure or a split structure.

[0241] Embodiment 22:

[0242] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0243] like Figure 7 As shown, the stator assembly 130 further includes an insulating frame 134 , a mounting bracket 135 , and a plurality of pins 136 .

[0244] The insulating frame 134 is sleeved over the first stator tooth 1334 and / or the second stator tooth 1336, and the first winding and / or the second winding are wound around the insulating frame 134. The mounting frame 135 is fixedly connected to the insulating frame 134; a plurality of pins 136 are inserted into the mounting frame 135, and the lead wires of the first winding and the second winding are fixedly connected to the plurality of pins 136.

[0245] The mounting frame 135 is connected to the insulating frame 134 sleeved on the first stator tooth 1334 or the insulating frame 134 sleeved on the second stator tooth 1336. The mounting frame 135 is a curved strip structure coaxial with the stator assembly 130. The mounting frame 135 and the plurality of pins 136 are located radially outward of the first rotor 144 and the second rotor 182. This makes the structure of the power assembly 100 relatively regular, is less likely to interfere with the internal magnetic field of the power assembly 100, and facilitates connection with external circuits.

[0246] Embodiment 23:

[0247] This embodiment provides a power assembly 100 . In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0248] like Figure 3 and Figure 4 As shown, the power assembly 100 further includes an electric control board 194 , which is internally located between the first rotor 144 disk and the first packaging cover 122 , or between the second rotor 182 disk and the second packaging cover 124 .

[0249] The setting of the electric control board 194 is conducive to realizing the automatic control of the power component 100; the electric control board 194 is set on any side of the power component 100 and is located between the rotor assembly and the packaging cover on that side, which not only ensures the stability of the electric control board 194, but also facilitates the line output of the electric control board 194.

[0250] Embodiment 24:

[0251] The present invention provides a wind turbine including the power assembly 100 according to any one of the above embodiments. Therefore, the wind turbine includes all the beneficial effects of the power assembly 100 according to any one of the above embodiments.

[0252] The power assembly 100 is a motor.

[0253] Embodiment 25:

[0254] like Figure 8 As shown, this embodiment provides a wind turbine. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0255] The fan also includes a first fan blade 200 and a second fan blade 300. The first fan blade 200 is mounted on the first shaft extension end of the first rotating shaft 142, and the second fan blade 300 is mounted on the second shaft extension end of the second rotating shaft 184. The first fan blade 200 and the second fan blade 300 can rotate at different speeds according to actual needs.

[0256] In the claims, specification and drawings of the present invention, the term "plurality" refers to two or more. Unless otherwise expressly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the purpose of more conveniently describing the present invention and making the description process simpler. It is not intended to indicate or imply that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation. Therefore, these descriptions cannot be understood as limiting the present invention. The terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0257] In the claims, specification, and drawings of the present invention, the terms "one embodiment," "some embodiments," "a specific embodiment," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification, and drawings of the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0258] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A power assembly, characterized in that: include: a stator assembly, the stator assembly being provided with a first channel; a first packaging cover, wherein the first packaging cover is buckled on one side of the stator assembly; a first rotor assembly, the first rotor assembly comprising a first rotating shaft and a first rotor, the first rotor being connected to the first rotating shaft and capable of driving the first rotating shaft to rotate, the first rotor being disposed on one side of the stator assembly to form an axial air gap with the stator assembly, and the first rotating shaft being provided with a second channel; a first supporting member connected to the first rotating shaft, disposed in the first channel, and connected to the stator assembly; a second supporting member connected to the first rotating shaft and to the first packaging cover; at least one third supporting component, the at least one third supporting component being disposed in the second channel and connected to the first rotating shaft; a second rotor assembly, the second rotor assembly comprising a second rotating shaft, the second rotating shaft being inserted into the at least one third supporting member; a fourth supporting member, the fourth supporting member being sleeved on the second rotating shaft and connected to the stator assembly; a bearing seat assembly, the bearing seat assembly being disposed in the first channel; The bearing seat assembly comprises: a first bearing seat, wherein the first supporting member is disposed in the first bearing seat; a second bearing seat, the second bearing seat being spaced apart from the first bearing seat, and the fourth supporting member being disposed in the second bearing seat; a connecting component, one side of the connecting component being connected to the first bearing seat, and the other side of the connecting component being connected to the second bearing seat, wherein the first bearing seat, the connecting component and the second bearing seat are an integrated structure; The second rotor assembly further comprises: a second rotor, the second rotor being sleeved on the second rotating shaft; Wherein, the first rotor is located on one side of the stator assembly in the axial direction, and the second rotor is located on the other side of the stator assembly in the axial direction; The stator assembly comprises: case; a first stator, the first stator being disposed in the housing and adapted to the first rotor; The second stator is arranged in the housing, axially arranged with the first stator, and adapted to the second rotor. The first stator and the second stator are fixedly connected and non-coupling independent functional units.

2. The power assembly according to claim 1, characterized in that: The first support member comprises at least one bearing; and / or The second support member comprises at least one bearing; and / or The at least one third support member comprises at least one bearing; and / or The fourth support member includes at least one bearing.

3. The power assembly according to claim 1, characterized in that: The at least one third supporting component is a rolling bearing or a sliding bearing.

4. The power assembly according to claim 3, characterized in that: The first support component and the at least one third support component are respectively located on two sides of the first rotor in the axial direction.

5. The power assembly according to claim 1, characterized in that: The bearing seat assembly further comprises: a first cover plate, the first cover plate being disposed on the first bearing seat to position the first supporting member; A second cover plate is provided on the second bearing seat to position the fourth supporting component.

6. The power assembly according to claim 1, characterized in that: The first rotating shaft passes through the first packaging cover and extends toward the outside of the housing.

7. The power assembly according to claim 6, characterized in that: Also includes: a second packaging cover, the second packaging cover being buckled onto the other side of the housing; The second rotating shaft passes through the second packaging cover and extends toward the outside of the housing.

8. The power assembly according to claim 6, characterized in that: The second rotating shaft passes through the first rotating shaft and extends toward the outside of the first rotating shaft.

9. The power assembly according to claim 2, characterized in that: Also includes: A third rotating shaft is inserted into the second channel and connected to the first rotating shaft.

10. The power assembly according to claim 1, characterized in that: The housing is a plastic component and is covered on the outside of the stator assembly to fix the stator assembly and the bearing seat assembly.

11. A fan, characterized in that: The invention comprises a power assembly according to any one of claims 1 to 10.

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