Power assembly and fan

Abstract

This invention provides a power assembly and a fan. The power assembly includes a stator assembly, a first rotor assembly, and at least one first support component. The stator assembly has a first channel. The first rotor assembly includes a first shaft and a first rotor, with the first rotor connected to the first shaft and capable of driving the first shaft to rotate. The first rotor is positioned on one side of the stator assembly, forming an axial air gap with the stator assembly. The first shaft has a second channel. At least one first support component is sleeved on the first shaft and disposed within the first channel, connected to the stator assembly. The power assembly provided by this invention reduces the space occupied by the first support components, allowing each support component to have more space, improving the support effect of the first support components on the shaft, and thus improving the stability of the power assembly during rotation.

Description

Technical Field

[0001] This invention relates to the field of power component technology, and more specifically, to a power component and a wind turbine. Background Technology

[0002] Currently, to enhance the functionality of the power unit, two output shafts can be installed on the same power unit, and the two output shafts can output power at different speeds.

[0003] In related technologies, to achieve two output shafts on the same power unit, a stator assembly and two rotor assemblies are used, thereby realizing the dual output function on the same side or both sides of the same power unit. However, since both rotor assemblies need to be supported radially inside the stator assembly, the installation space for the bearings of each rotor assembly is small, affecting the support effect on the shaft and thus affecting the stability of the power unit. 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] Therefore, a first aspect of the present invention provides a power assembly.

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

[0007] In view of the above, a first aspect of the present invention provides a power assembly, including a stator assembly, a first rotor assembly, and at least one first support member; the stator assembly is provided with a first channel; the first rotor assembly includes a first shaft and a first rotor, the first rotor being connected to the first shaft and capable of driving the first shaft to rotate, the first rotor being disposed on one side of the stator assembly and forming an axial air gap with the stator assembly, the first shaft being provided with a second channel; at least one first support member is sleeved on the first shaft, and at least one first support member is disposed within the first channel and connected to the stator assembly.

[0008] The power assembly provided by the present invention has a stator assembly and a rotor assembly disposed inside the housing. When the stator assembly is energized, it drives the rotor assembly to rotate, thereby realizing the output of power.

[0009] The power assembly also includes at least one first support component, which supports the rotation of the first shaft to ensure stability during the rotation of the first shaft.

[0010] Because the first shaft is supported by at least one first support component, the number of first support components required to support the first shaft is reduced, thereby reducing the space occupied by the first support components. This allows each support component to have more space, improving the support effect of the first support component on the shaft and thus enhancing the stability of the power assembly during rotation. Especially for power assemblies with multiple rotor assemblies, reducing the number of first support components reduces the space occupied by them, allowing the support components for other shafts to be more rationally distributed within the stator assembly, further improving the stability of the power assembly during rotation. Furthermore, since the first shaft is supported by at least one first support component, the number of support components is reduced, lowering the cost of the power assembly. This is particularly true for low-speed power assemblies; by supporting the first shaft with at least one first support component, the cost of the power assembly is reduced while ensuring stable power output, thus enhancing the market competitiveness of the power assembly.

[0011] The first rotating shaft is provided with a second channel, and the power assembly also includes at least one second support component and a second rotor assembly; at least one second support component is disposed in the second channel and connected to the first rotating shaft; the second rotor assembly includes a second rotating shaft, which is inserted into at least one second support component.

[0012] The power assembly also includes a second rotor assembly, so that the power assembly has two sets of rotor assemblies at the same time, which improves the functionality of the power assembly.

[0013] Furthermore, since the first rotating shaft is provided with a second channel, the second rotating shaft passes through the second channel, and the second rotating shaft is connected to the first rotating shaft through a second support component, the first rotating shaft and the second rotating shaft can rotate independently of each other, thereby enabling the first rotating shaft and the second rotating shaft to output at different speeds simultaneously.

[0014] Since the second rotating shaft is connected to the first rotating shaft through the second supporting component, the first and second rotating shafts can rotate independently of each other, while the second supporting component can also support the second rotating shaft to ensure the stability of the second rotating shaft during rotation.

[0015] Because a second support component is provided between the first and second rotating shafts, friction caused by the end jump of the first and second rotating shafts is avoided, thereby ensuring the coaxiality between the first and second rotating shafts and making the first and second rotating shafts rotate more flexibly.

[0016] At least one second support component is a second support component.

[0017] At least one second support component is two second support components.

[0018] The power assembly also includes a third support component, which is sleeved on the second rotating shaft and connected to the bearing housing assembly.

[0019] The third support component is mounted on the bearing housing assembly and located within the first channel. The third support component and the second support component together support the second rotating shaft, further enhancing the stability of the second rotating shaft during rotation.

[0020] Furthermore, since the second support component is located within the second channel of the first rotating shaft and the third support component is located within the first channel of the stator assembly, the support components of the second rotating shaft are no longer confined to the first channel of the stator assembly. This extends the axial distance between the second and third support components, so that the axial distance between the second and third support components is no longer limited by the axial length of the stator assembly, thereby improving the axial strength of the second rotating shaft and enhancing its stability during rotation.

[0021] In addition, the power component in the above-mentioned technical solution provided by the present invention may also have the following additional technical features:

[0022] In one embodiment of the present invention, at least one first support component includes at least one bearing; and / or at least one second support component includes at least one bearing; and / or a third support component includes at least one bearing.

[0023] In this technical solution, the first support component, the second support component, and the third support component can all be bearings, thereby ensuring that the first support component, the second support component, and the third support component can more stably support the first rotating shaft and the second rotating shaft.

[0024] In one embodiment of the present invention, at least one second support component is a rolling bearing or a sliding bearing, and at least one first support component is offset from at least one second support component in the axial direction.

[0025] In this technical solution, the first support component and the second support component are not aligned in the axial direction, which makes the force support points of each support component more evenly distributed in the axial direction, thereby improving the reliability of the support.

[0026] In one embodiment of the present invention, at least one first support member and at least one second support member are respectively located on both sides of the first rotor in the axial direction.

[0027] In this technical solution, the first support component and the second support component are located on both sides of the first rotor in the axial direction, so that the support points of the first support component and the second support component are located on both sides of the first rotor, which further improves the uniformity of the force distribution of each support component in the axial direction, thereby improving the reliability of the support.

[0028] In one embodiment of the present invention, the power assembly further includes a bearing housing assembly disposed within a first channel, and one of the at least one first support components is connected to the bearing housing assembly.

[0029] In this technical solution, the bearing housing assembly is disposed in the first channel and connected to the stator assembly. In at least one first support component, the first support component disposed in the first channel is connected to the support base assembly, thereby supporting the first support component disposed in the first channel, ensuring the stability of the first support component, and thus ensuring the stability of the first rotating shaft during rotation.

[0030] Furthermore, the support components are installed and positioned by setting a support base assembly in the first channel. The support base assembly can be processed separately, which simplifies the processing difficulty of the power component.

[0031] In one technical solution of the present invention, the number of at least one first support component is one, and the first support component is sleeved on one end of the first rotating shaft.

[0032] In this technical solution, the number of first support components is one, which further reduces the cost of the first support components. In turn, while ensuring that the power component can output power stably, the cost of the power component can be reduced and the market competitiveness of the power component can be improved.

[0033] The first support component is sleeved on one end of the first rotating shaft, and the other end of the first rotating shaft extends out of the first encapsulation cover. That is, the other end of the first rotating shaft is the shaft extension end, which can be connected to the load.

[0034] The first rotor is sleeved on the first shaft and located between the first support component and the shaft extension end, so that the first rotor is closer to the shaft extension end, thereby shortening the distance between the first rotor and the load, improving the torsional resistance of the first shaft, and thus improving the strength of the first shaft.

[0035] In one technical solution of the present invention, the bearing housing assembly includes a first bearing housing and a second bearing housing; a first support member is disposed in the first bearing housing; the second bearing housing is spaced apart from the first bearing housing; and a third support member is disposed in the second bearing housing.

[0036] In this technical solution, the bearing housing assembly includes a first bearing housing and a second bearing housing. The first bearing housing and the second bearing housing 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.

[0037] In one embodiment of the present invention, the bearing housing assembly includes a connecting component, one side of which is connected to a first bearing housing and the other side of which is connected to a second bearing housing.

[0038] In one embodiment of the present invention, the bearing housing assembly further includes a first cover plate and a second cover plate; the first cover plate is disposed on the first bearing housing to position the first support member; the second cover plate is disposed on the second bearing housing to position the third support member.

[0039] In this technical solution, a first cover plate is placed on the first bearing housing to position the first support component and prevent it from coming out of the first bearing housing. A second cover plate is placed on the second bearing housing to position the third support component and prevent it from coming out of the second bearing housing.

[0040] In one embodiment 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.

[0041] In this technical solution, the second rotor and the first rotor are located on both sides of the stator assembly, so that the stator assembly can drive the first rotor and the second rotor respectively, and the first shaft and the second shaft can output power at different speeds, thereby improving the functionality of the power assembly.

[0042] 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 disposed inside the housing and adapted to a first rotor; the second stator is disposed inside the housing, arranged axially with the first stator and adapted to the second rotor.

[0043] 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 speeds of the first rotor and the second rotor can be controlled separately, thereby making the control of the power components more convenient.

[0044] In one technical solution of the present invention, the first stator and the second stator are fixedly connected, uncoupled, independent functional units, which respectively form independent drive units with the first rotor assembly and the second rotor assembly.

[0045] In one embodiment of the present invention, the power assembly further includes a first encapsulation cover, which is fastened to one side of the stator assembly.

[0046] In one embodiment of the present invention, the first rotating shaft passes through the first encapsulation cover and extends to the outside of the housing.

[0047] In this technical solution, the first rotating shaft passes through the first encapsulation cover and extends to the outside of the housing, thereby realizing the output of power. The first rotating shaft located outside the first encapsulation cover is the first shaft extension end, which can be connected to the load.

[0048] In one embodiment of the present invention, the power assembly further includes a second encapsulation cover, which is fastened to the other side of the housing; the second rotating shaft passes through the second encapsulation cover and extends to the outside of the housing.

[0049] In this technical solution, the second encapsulation cover is fastened to the housing to seal the housing, preventing dust or impurities from the external environment from entering the housing and ensuring the flexibility of rotation of the first rotor assembly and the second rotor assembly.

[0050] Furthermore, the second rotating shaft passes through the second encapsulation cover, and the second rotating shaft located outside the second encapsulation cover is the second shaft extension end, which can be connected to the load, thereby enabling the power component to output shafts in both directions to drive loads located in different directions.

[0051] A second protective cover is provided on the outside of the second encapsulation cover and is fitted onto the second rotating shaft.

[0052] In one embodiment of the present invention, the second rotating shaft passes through the first rotating shaft and extends outward from the first rotating shaft.

[0053] In this technical solution, after the second shaft passes through the first shaft, the part of the second shaft that extends out of the first shaft is the second shaft extension end, which can be connected to the load, so that the power assembly has two output shafts in the same direction to drive loads located in different directions.

[0054] One end of the second shaft passes through the second encapsulation cover and extends to the outside of the housing, while the other end of the second shaft passes through the first shaft and extends to the outside of the first shaft, so that the power assembly has three output terminals at the same time, thereby driving three loads simultaneously.

[0055] In one embodiment 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.

[0056] In this technical solution, by setting a third rotating shaft, the diameter of the third rotating shaft can be adjusted according to the load requirements, avoiding the first rotating shaft diameter being too large due to the need to support the second support component, thereby improving the applicability of the power assembly.

[0057] In one embodiment of the present invention, the housing is a plastic part that covers the outside of the stator assembly to fix the stator assembly and the bearing housing assembly.

[0058] In this technical solution, the housing is made of plastic and covers the outside of the stator assembly. While realizing 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.

[0059] Since the housing is made of plastic, the stator assembly can be pre-embedded in the mold and then injection molded in one go, so that the housing can directly cover 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.

[0060] When the stator assembly and bearing housing assembly are pre-embedded in the mold and injection molded in one go, a bearing chamber can be formed in the radial interior of the housing, eliminating the need for subsequent mechanical processing of the bearing chamber. Furthermore, by embedding the first support component and the third support component in the bearing chamber, the support for the first and second rotating shafts can be achieved, thereby reducing the number of components in the power assembly and simplifying the manufacturing and assembly process. Moreover, the multiple bearings located inside the plastic-coated body can also effectively reduce the axial height of the entire power assembly.

[0061] The housing is injection molded and securely connects the stator assembly, including the stator core, insulating frame, mounting bracket, multiple pins, and bearing housing assembly, into a single unit, ensuring the stability of the power assembly. Furthermore, the outer diameter of the housing is larger than the maximum radial outer contour surface formed by all components of the stator assembly, ensuring that these components are encased within the radial outer surface of the housing, thereby guaranteeing the integrity, regularity, and insulation of the power assembly's appearance from the external environment. Simultaneously, the axial end face of the radial portion of the housing covering the first and second stator teeth cannot exceed the axial end face formed by the tooth shoulders on both sides. In other words, the housing coating must not cover the axial outer surface of the stator core tooth shoulders, facilitating more precise and effective control of the axial air gap between the tooth shoulders and the permanent magnet.

[0062] In one technical solution of the present invention, the first rotor includes a first rotor disk and a plurality of first magnetic elements; the first rotor disk is sleeved on a first rotating shaft; the plurality of first magnetic elements are arranged circumferentially along the first rotor disk and are in contact with at least one end face of a plurality of end faces of the first rotor disk in the axial direction.

[0063] In this technical solution, the first magnetic component is attached to the first rotor disk. While ensuring the performance of the power component that functions 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 made easier, the processing cost and part cost of the first rotor are reduced, and thus the cost of the first rotor is lower.

[0064] Furthermore, since multiple first magnetic components are arranged circumferentially along the first rotor disk and fit into at least one of the multiple end faces of the first rotor disk in the axial direction, standard tooling can be used to position the first magnetic components during assembly. There is no need to machine a positioning structure on the first rotor disk to position the first magnetic components, which simplifies the machining process of the first rotor disk and further reduces the machining difficulty and cost of the first rotor.

[0065] The first magnetic component is a permanent magnet, with the N and S poles of two adjacent permanent magnets arranged alternately, or two adjacent permanent magnets arranged in a Halebeck array.

[0066] Multiple first magnetic elements are disposed on the same end face of the first rotor disk and arranged circumferentially along the first rotor disk. The N poles and S poles of two adjacent first magnetic elements are arranged alternately, or two adjacent first magnetic elements are arranged in a Halebeck array.

[0067] Multiple first magnetic elements are disposed on the end faces of both sides of the first rotor disk, with the first magnetic elements on the same end face arranged circumferentially along the first rotor disk. The N poles and S poles of two adjacent first magnetic elements on the same end face are arranged alternately, or two adjacent first magnetic elements are arranged in a Halebeck array. The first magnetic elements on the two end faces are symmetrically arranged relative to the first rotor disk.

[0068] The first rotor disk is disc-shaped, which makes the structure of the first rotor disk simple and the shape regular.

[0069] In one technical solution of the present invention, the first rotor disk includes a first magnetic conductive part and a first connecting part, a plurality of first magnetic elements are disposed on the first magnetic conductive part, the first magnetic conductive part is disposed on a plurality of first connecting parts, and the first connecting parts are connected to the first rotating shaft.

[0070] The first connecting part and the first rotating shaft are made of the same material, and the first connecting part and the first rotating shaft are either an integral structure or a separate structure.

[0071] In one embodiment of the present invention, the first rotor disk is a magnetically conductive metal component.

[0072] In one technical solution of the present invention, the second rotor includes a second rotor disk and a plurality of second magnetic elements; the second rotor disk is sleeved on the second rotating shaft; the plurality of second magnetic elements are arranged circumferentially along the second rotor disk and are in contact with at least one end face of the second rotor disk in the axial direction.

[0073] In this technical solution, the second magnetic component is attached to the second rotor disk. While ensuring the performance of the power component for the function 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 made easier, the processing cost and part cost of the second rotor are reduced, and thus the cost of the second rotor is lower.

[0074] Furthermore, since multiple second magnetic components are arranged circumferentially along the second rotor disk and fit against at least one of the multiple end faces of the second rotor disk in the axial direction, standard tooling can be used to position the second magnetic components during assembly. There is no need to machine a positioning structure on the second rotor disk to position the second magnetic components, which simplifies the machining process of the second rotor disk and further reduces the machining difficulty and cost of the second rotor.

[0075] The second magnetic component is a permanent magnet, with the N and S poles of two adjacent permanent magnets arranged alternately, or two adjacent permanent magnets arranged in a Halebeck array.

[0076] Multiple second magnetic elements are disposed on the same end face of the second rotor disk and arranged circumferentially along the second rotor disk. The N poles and S poles of two adjacent second magnetic elements are arranged alternately, or two adjacent second magnetic elements are arranged in a Halebeck array.

[0077] Multiple second magnetic elements are disposed on the end faces of both sides of the second rotor disk, with the second magnetic elements on the same end face arranged circumferentially along the second rotor disk. The N poles and S poles of two adjacent second magnetic elements on the same end face are arranged alternately, or two adjacent second magnetic elements are arranged in a Halebeck array. The second magnetic elements on the two end faces are symmetrically arranged relative to the second rotor disk.

[0078] The second rotor disk is disc-shaped, which makes its structure simple and its shape regular.

[0079] In one embodiment of the present invention, the second rotor disk includes a second magnetic conductive part and a second connecting part, a plurality of second magnetic elements are disposed on the second magnetic conductive part, the second magnetic conductive part is disposed on a plurality of second connecting parts, and the second connecting parts are connected to the second rotating shaft.

[0080] The second connecting part and the second rotating shaft are made of the same material, and the second connecting part and the second rotating shaft are either an integral structure or a separate structure.

[0081] In one embodiment of the present invention, the second rotor disk is a magnetically conductive metal component.

[0082] For the rotor assembly, the magnetic conductive part, the connecting part and the rotating shaft of the rotor disk are fixedly connected. The three can be made into one part, or the magnetic conductive part and the connecting part can be made into one part, or the connecting part and the rotating shaft can be made into one part, and then injection molded and welded into a single structure. Alternatively, threaded connection and interference fit can be used to form a fixed structure. At least the magnetic conductive part connected to the permanent magnet must be made of magnetic conductive material.

[0083] In one embodiment of the present invention, the 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 both 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 provided inside the stator core.

[0084] The stator core includes a stator yoke, first stator teeth, and second stator teeth. This design reduces both the machining difficulty of the stator core and the winding difficulty of the first and second windings. The stator yoke can be formed by stacking multiple stator laminations, and the first and second stator teeth can also be formed by stacking multiple stator laminations. Alternatively, the stator core can be a single, integral structure.

[0085] In one technical solution of the present invention, the stator yoke is provided with multiple slots along the circumferential direction, and any one of the multiple slots extends radially along the stator yoke. The first stator tooth and the second stator tooth are engaged in the multiple slots, which makes the stator core structure simple, easy to process, and easy to assemble.

[0086] Both the first stator tooth and the second stator tooth include a body, a first engaging part and a second engaging part. The first engaging part and the second engaging part are 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.

[0087] When the first winding or the second winding is wound on the body, the first winding or the second winding engages with the first snap-fit ​​part on one side of the axial direction, and the stator yoke is ring-shaped and snaps onto the second snap-fit ​​part, engaging with the first winding or the second winding on the other side of the axial direction. Thus, the stator yoke and the first snap-fit ​​part fix the first winding or the second winding onto the body.

[0088] The first stator tooth and the second stator tooth can be an integral structure or a separate structure.

[0089] In one embodiment of the present invention, the stator assembly further includes an insulating frame, a mounting bracket, and a plurality of pins.

[0090] An insulating frame is fitted over the outside of the first stator tooth and / or the second stator tooth, and the first winding and / or the second winding is wound around the insulating frame. A mounting bracket is fixedly connected to the insulating frame; multiple pins are inserted into the mounting bracket, and the leads of the first winding and the second winding are fixedly connected to the multiple pins.

[0091] The mounting bracket is connected to the insulating frame sleeved on the first stator tooth or the insulating frame sleeved on the second stator tooth. The mounting bracket is an arc-shaped strip structure coaxial with the stator assembly, and the mounting bracket and multiple pins are located radially outside the first rotor and the second rotor. This makes the structure of the power assembly relatively regular, less likely to interfere with the internal magnetic field of the power assembly, and facilitates connection with external wiring.

[0092] In one technical solution of the present invention, the power assembly further includes an electronic control board, which is built between the first rotor disk and the first encapsulation cover, or built between the second rotor disk and the second encapsulation cover.

[0093] The placement of the electronic control board facilitates the automated control of the power components. Positioning the electronic control board on any side of the power components, between the rotor assembly and the encapsulation cover on that side, ensures the stability of the electronic control board and facilitates its circuit output.

[0094] A second aspect of the present invention provides a fan that includes a power component as described in any of the above technical solutions, and thus the fan includes all the beneficial effects of the power component as described in any of the above technical solutions.

[0095] The power component is an electric motor.

[0096] In one technical solution of the present invention, the fan further includes a first fan blade and a second fan blade. The first fan blade is sleeved on the first shaft extension end of the first rotating shaft, and the second fan blade is sleeved 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.

[0097] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0098] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0099] Figure 1 A schematic diagram of the structure of a power assembly according to an embodiment of the present invention is shown;

[0100] Figure 2 A schematic diagram of the structure of a power assembly according to another embodiment of the present invention is shown;

[0101] Figure 3 A schematic diagram of the structure of a power assembly according to another embodiment of the present invention is shown;

[0102] Figure 4 A schematic diagram of the structure of a power assembly according to another embodiment of the present invention is shown;

[0103] Figure 5 A schematic diagram of the structure of a power assembly according to another embodiment of the present invention is shown;

[0104] Figure 6 An exploded view of a power assembly according to an embodiment of the present invention is shown;

[0105] Figure 7 A schematic diagram of a stator assembly according to an embodiment of the present invention is shown;

[0106] Figure 8 A schematic diagram of a fan according to an embodiment of the present invention is shown.

[0107] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0108] 100 Power assembly, 110 Housing, 122 First encapsulation cover, 124 Second encapsulation 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 Insulating frame, 135 Mounting bracket, 136 Pin, 140 First rotor assembly, 142 First shaft, 144 First rotor, 1442 First rotor disk, 1444 First magnetic component, 1446 First magnetic conductor, 1448 First connecting part, 152 First protective cover 154 Second protective cover, 160 Bearing housing assembly, 161 First bearing housing, 162 Connecting component, 163 Second bearing housing, 164 First cover plate, 165 Second cover plate, 172 First support component, 176 Second support component, 178 Third support component, 180 Second rotor assembly, 182 Second rotor, 1822 Second rotor disk, 1824 Second magnetic component, 1826 Second magnetic conductive part, 1828 Second connecting part, 184 Second rotating shaft, 192 Third rotating shaft, 194 Electrical control board, 200 First fan blade, 300 Second fan blade. Detailed Implementation

[0109] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0110] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0111] The following reference Figures 1 to 8The power assembly 100 and the fan are described according to some embodiments of the present invention.

[0112] Example 1:

[0113] like Figure 1 and Figure 2 As shown, the present invention provides a power assembly 100, including a stator assembly 130, a first rotor assembly 140, and at least one first support member 172; a first encapsulation cover 122 is fastened to one side of a housing 110; the stator assembly 130 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 disposed on one side of the stator assembly 130, forming an axial air gap with the stator assembly 130, the first rotating shaft 142 is provided with a second channel; at least one first support member 172 is sleeved on the first rotating shaft 142, and at least one first support member 172 is disposed in the first channel and connected to the stator assembly 130.

[0114] In this embodiment, a stator assembly 130 and a rotor assembly are provided inside the housing 110. When the stator assembly 130 is energized, it drives the rotor assembly to rotate, thereby realizing the output of power.

[0115] The power assembly 100 also includes at least one first support member 172, which supports the rotation of the first rotating shaft 142, thereby ensuring the stability of the first rotating shaft 142 during rotation.

[0116] Since the first shaft 142 is supported by at least one first support member 172, the number of first support members 172 required to support the first shaft 142 is reduced, thereby reducing the space occupied by the first support members 172. This allows each support member to have more space, improving the support effect of the first support member 172 on the shaft, and thus improving the stability of the power assembly 100 during rotation. Especially for a power assembly 100 with multiple rotor assemblies, reducing the number of first support members 172 reduces the space occupied by the first support members 172, allowing the support members of other shafts to be more rationally distributed within the stator assembly 130, thereby improving the stability of the power assembly 100 during rotation. Furthermore, since the first shaft 142 is supported by at least one first support member 172, the number of support members is reduced, lowering the cost of the power assembly 100. Especially for low-speed power assemblies 100, supporting the first shaft 142 with at least one first support member 172 reduces the cost of the power assembly 100 while ensuring stable power output, thus enhancing the market competitiveness of the power assembly 100.

[0117] The first support component is a bearing, with multiple bearings respectively disposed on both sides of the first rotor 144 along the axial direction of the first shaft 142. This allows for distributed support of multiple parts of the first shaft 142, thereby improving the reliability of the support for the first shaft 142, significantly reducing the risk of tilting or other issues, and thus improving the reliability of the rotor assembly.

[0118] The first support component is a needle roller. Multiple needle rollers are arranged circumferentially on the first rotating shaft 142. The needle rollers cooperate with the stator assembly 130 or the first encapsulation cover 122 to support the first rotating shaft 142.

[0119] The first support 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 encapsulation cover 122 is disposed on the outside of the first protective cover 152, and the first protective cover 152 is sleeved on the first rotating shaft 142.

[0121] 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 second support member 176 and a second rotor assembly 180; at least one second support member 176 is disposed in the second channel and connected to the first rotating shaft 142; the second rotor assembly 180 includes a second rotating shaft 184, which is inserted into at least one second support member 176.

[0122] The power assembly 100 also includes a second rotor assembly 180, so that the power assembly 100 has two sets of rotor assemblies at the same time, which improves the functionality of the power assembly 100.

[0123] Furthermore, since the first rotating shaft 142 is provided with a second channel, the second rotating shaft 184 passes through the second channel, and the second rotating shaft 184 is connected to the first rotating shaft 142 through the second support member 176, so that the first rotating shaft 142 and the second rotating shaft 184 can rotate independently of each other, thereby enabling the first rotating shaft 142 and the second rotating shaft 184 to output at different speeds simultaneously.

[0124] Since the second rotating shaft 184 is connected to the first rotating shaft 142 through the second support member 176, the first rotating shaft 142 and the second rotating shaft 184 can rotate independently of each other, while the second rotating shaft 184 can also be supported by the second support member 176 to ensure the stability of the second rotating shaft 184 during rotation.

[0125] Because a second support component 176 is provided between the first rotating shaft 142 and the second rotating shaft 184, friction is avoided due to the end jump of the first rotating shaft 142 and the second rotating shaft 184, 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.

[0126] like Figures 1 to 5 As shown, the second support component 176 is a bearing, needle roller, or connecting ring.

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

[0128] At least one second support member 176 is two second support members 176.

[0129] like Figure 1 and Figure 2 As shown, the power assembly 100 also includes a third support component 178, which is sleeved on the second rotating shaft 184 and connected to the bearing housing assembly 160.

[0130] The third support component 178 is disposed on the bearing housing assembly 160 and located in the first channel. The third support component 178 and the second support component 176 jointly support the second rotating shaft 184, further improving the stability of the second rotating shaft 184 during rotation.

[0131] Furthermore, since the second support member 176 is located in the second channel of the first rotating shaft 142 and the third support member 178 is located in the first channel of the stator assembly 130, the support members of the second rotating shaft 184 are no longer limited to the first channel of the stator assembly 130. This extends the axial distance between the second support member 176 and the third support member 178, so that the axial distance between the second support member 176 and the third support member 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 enhancing the stability of the second rotating shaft 184 during rotation.

[0132] The third support component 178 is a bearing, needle roller, or connecting ring.

[0133] Example 2:

[0134] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0135] At least one first support member 172 includes at least one bearing; and / or at least one second support member 176 includes at least one bearing; and / or a third support member 178 includes at least one bearing.

[0136] In this embodiment, the first support member 172, the second support member 176, and the third support member 178 can all be bearings, thereby ensuring that the first support member 172, the second support member 176, and the third support member 178 can support the first and second rotating shafts more stably.

[0137] Example 3:

[0138] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0139] At least one second support member 176 is a rolling bearing or a sliding bearing, and at least one first support member 172 is axially offset from at least one second support member 176.

[0140] In this embodiment, the first support component 172 and the second support component 176 are not aligned in the axial direction, which makes the force support points of each support component more evenly distributed in the axial direction, thereby improving the reliability of the support.

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

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

[0143] Example 4:

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

[0145] like Figure 1 and Figure 2 As shown, the power assembly 100 also includes a bearing housing assembly 160, which is disposed in the first channel, and at least one of the support members 172 is connected to the bearing housing assembly 160.

[0146] In this embodiment, the bearing housing assembly 160 is disposed in the first channel and connected to the stator assembly 130. In at least one first support member 172, the support member disposed in the first channel is connected to the support housing assembly, thereby supporting the support member disposed in the first channel, ensuring the stability of the support member, and thus ensuring the stability of the first rotating shaft 142 during rotation.

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

[0148] Example 5:

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

[0150] like Figure 1 and Figure 2 As shown, the number of at least one first support member 172 is one, and one first support member 172 is sleeved on one end of the first rotating shaft 142.

[0151] In this embodiment, the number of first support components 172 is one, which further reduces the cost of the first support components 172. In this way, the cost of the power component 100 can be reduced while ensuring that the power component 100 can output power stably, thereby enhancing the market competitiveness of the power component 100.

[0152] The first support component 172 is sleeved on one end of the first rotating shaft 142, and the other end of the first rotating shaft 142 extends out of the first encapsulation cover. That is, the other end of the first rotating shaft 142 is the shaft extension end, which can be connected to the load.

[0153] The first rotor is sleeved on the first shaft 142 and located between the first support member 172 and the shaft extension end, so that the first rotor 144 is closer to the shaft extension end, thereby shortening the distance between the first rotor 144 and the load, improving the torsional resistance of the first shaft 142, and thus improving the strength of the first shaft 142.

[0154] Example 6:

[0155] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0156] like Figure 1As shown, the bearing housing assembly 160 includes a first bearing housing 161 and a second bearing housing 163; a first support member 172 is disposed in the first bearing housing 161; the second bearing housing 163 is disposed at a distance from the first bearing housing 161; and a third support member 178 is disposed in the second bearing housing 163.

[0157] In this embodiment, the bearing housing assembly 160 includes a first bearing housing 161 and a second bearing housing 163. The first bearing housing 161 and the second bearing housing 163 can respectively support the first support member and the third support member, thereby ensuring the stability of the first bearing and the second bearing during rotation.

[0158] The bearing housing assembly 160 includes a connecting member 162, one side of which is connected to a first bearing housing 161 and the other side is connected to a second bearing housing 163.

[0159] The first bearing housing 161 and the second bearing housing 163 are connected by a connecting component 162. The connecting component 162 can axially position the first bearing housing 161 and the second bearing housing 163, thereby ensuring the positional accuracy of the first bearing housing 161 and the second bearing housing 163.

[0160] The first bearing housing 161, the connecting component 162, and the second bearing housing 163 are integrated into one structure to ensure the coaxiality between the first bearing housing 161 and the second bearing housing 163, thereby ensuring the rotational accuracy of the rotor system. Furthermore, the integrated structure of the first bearing housing 161, the connecting component 162, and the second bearing housing 163 gives the bearing housing assembly 160 better structural rigidity, making the support for the first and second bearings more stable.

[0161] The first bearing housing 161, the connecting component 162, and the second bearing housing 163 are separate structures, which allows the first bearing housing 161, the connecting component 162, and the second bearing housing 163 to be processed separately before assembly, reducing the processing difficulty of the bearing housing assembly 160 and reducing the processing cost of the bearing housing assembly 160.

[0162] Example 7:

[0163] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0164] like Figure 1 As shown, the bearing housing assembly 160 also includes a first cover plate 164 and a second cover plate 165; the first cover plate 164 is disposed on the first bearing housing 161 to position the first support member 172; the second cover plate 165 is disposed on the second bearing housing 163 to position the third support member 178.

[0165] In this embodiment, a 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. A second cover plate 165 is disposed on the second bearing seat 163 to position the third support member 178 and prevent the third support member 178 from falling out of the second bearing seat 163.

[0166] Example 8:

[0167] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0168] like Figure 1 and Figure 2 As shown, the second rotor assembly 180 also 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.

[0169] In this embodiment, the second rotor 182 and the first rotor 144 are 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 shaft 142 and the second shaft 184 can output power at different speeds, thereby improving the functionality of the power assembly 100.

[0170] Example 9:

[0171] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0172] 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 disposed inside the housing 110 and is adapted to the first rotor 144; the second stator 132 is disposed inside the housing 110, is axially arranged with the first stator 131, and is adapted to the second rotor 182.

[0173] 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 the control of the power assembly 100 more convenient.

[0174] Specifically, the stator assembly 130 has a first stator 131 and a second stator 132 at its two axial ends, respectively. A first encapsulation cover 122 is fixedly disposed on the side of the stator assembly 130 where the first stator 131 is disposed. The first stator 131 and the first rotor 144 are axially opposed to each other to form an axial air gap. The second encapsulation cover 124 is fixedly disposed on the side of the stator assembly 130 where the second stator 132 is disposed. The second stator 132 and the second rotor 182 are axially opposed to each other to form an axial air gap.

[0175] The first stator 131 and the second stator 132 are fixedly connected, uncoupled, independent functional units, forming independent drive units with the first rotor assembly 140 and the second rotor assembly 180, respectively.

[0176] Specifically, there is no electromagnetic connection between the first stator 131 and the second stator 132. An axial magnetic flux is formed between the first stator 131 and the first rotor 144, driving the first rotating shaft 142 to move the load independently. At the same time, an axial magnetic flux is formed between the second stator 132 and the second rotor 182, driving the second rotating shaft 184 to move the load independently. The first stator 131 and the second stator 132 are fixedly connected and serve as stator assembly 130. The two can be fixedly connected by means of threaded connection, injection molding, etc.

[0177] This scheme is equivalent to two independent power components 100 connected in series, sharing a single housing. Structurally, dual-output functionality is achieved through a nested arrangement of two output shafts, with the two drive components operating independently. The two electromagnetic schemes of this power component 100 are designed independently and can be implemented using traditional design methods, resulting in low design costs.

[0178] Example 10:

[0179] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0180] like Figure 1 and Figure 2 As shown, the power assembly 100 also includes a first encapsulation cover 122, which is fastened to one side of the stator assembly.

[0181] like Figure 1 and Figure 2 As shown, the first rotating shaft 142 passes through the first encapsulation cover 122 and extends to the outside of the housing 110.

[0182] In this embodiment, the first rotating shaft 142 passes through the first encapsulation cover 122 and extends to the outside of the housing 110, thereby realizing the output of power. The first rotating shaft 142 located outside the first encapsulation cover 122 is the first shaft extension end, which can be connected to the load.

[0183] Example 11:

[0184] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0185] like Figure 3 As shown, the power assembly 100 also includes a second encapsulation cover 124, which is fastened to the other side of the housing 110; the second rotating shaft 184 passes through the second encapsulation cover 124 and extends to the outside of the housing 110.

[0186] In this embodiment, the second encapsulation cover 124 is fastened to the housing 110 to seal the housing 110, preventing dust or impurities from the external environment from entering the housing 110 and ensuring the flexibility of rotation of the first rotor assembly 140 and the second rotor assembly 180.

[0187] Furthermore, the second rotating shaft 184 passes through the second encapsulation cover 124. The second rotating shaft 184 located outside the second encapsulation cover 124 is the second shaft extension end, which can be connected to the load, thereby enabling the power assembly 100 to output shafts in both directions to drive loads located in different directions.

[0188] A second protective cover 154 is provided on the outside of the second encapsulation cover 124 and is sleeved on the second rotating shaft 184.

[0189] Example 12:

[0190] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0191] like Figure 1 and Figure 2 As shown, the second rotating shaft 184 passes through the first rotating shaft 142 and extends outward from the first rotating shaft 142.

[0192] 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 out of the first rotating shaft 142 is the second shaft extension end, which can be connected to the load, so that the power assembly 100 has two output shafts in the same direction to drive loads located in different directions.

[0193] One end of the second rotating shaft 184 passes through the second encapsulation cover 124 and extends to the outside of the housing 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 assembly 100 has three output terminals at the same time, thereby driving three loads at the same time.

[0194] Example 13:

[0195] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0196] like Figure 4 As shown, the power assembly 100 also includes a third rotating shaft 192, which is inserted into the second channel and connected to the first rotating shaft 142.

[0197] In this embodiment, by setting a third rotating shaft 192, the diameter of the third rotating shaft 192 can be adjusted according to the load requirements, avoiding the first rotating shaft 142 having an excessively large diameter due to the need for the first rotating shaft 142 to support the second support component 176, thereby improving the applicability of the power assembly 100.

[0198] When the second support component 176 adopts a sliding bearing, the third rotating shaft 192 and the first rotating shaft 142 can be set as an integral 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 the reliable connection of the load.

[0199] When the second support component 176 uses a rolling bearing, setting the third shaft 192 and the first shaft 142 as a separate structure can improve the load-bearing capacity while ensuring that the radial interface size of the output end of the first rotor assembly 140 is not too large. Of course, as long as the interface size of the load allows, when using a rolling bearing, the third shaft 192 and the first shaft 142 can also be set as an integral structure, which can simultaneously have high load-bearing capacity and high connection accuracy.

[0200] Example 14:

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

[0202] like Figure 1 and Figure 2 As shown, the housing 110 is a plastic part that covers the outside of the stator assembly 130 to fix the stator assembly 130 and the bearing housing assembly 160.

[0203] In this embodiment, the housing 110 is a plastic part and covers the outside of the stator assembly 130. While realizing 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.

[0204] Since the housing 110 is a plastic part, the stator assembly 130 can be pre-embedded in the mold and then injection molded in one go, so that the housing can directly cover 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.

[0205] When the stator assembly 130 and bearing housing assembly 160 are pre-embedded in the mold and injection molded in one go, a bearing chamber can be formed in the radial interior of the housing 110 without the need for subsequent mechanical processing of the bearing chamber. Furthermore, by embedding the first support component 172 and the third support component 178 in the bearing chamber, the support for the first rotating shaft 142 and the second rotating shaft 184 can be achieved, thereby reducing the number of parts in the power assembly 100 and reducing the manufacturing and assembly process. Moreover, the fact that multiple bearings are set inside the plastic body can also effectively reduce the axial height of the entire power assembly 100.

[0206] The housing 110 is injection molded and fixes the stator assembly 130, including the stator core 133, insulating frame 134, mounting bracket 135, and multiple pins 136, and the bearing housing assembly 160 into a whole, ensuring the stability of the power assembly 100. Furthermore, 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 guaranteeing the integrity, regularity, and insulation of the power assembly 100's appearance from the outside world. Simultaneously, the axial end face of the radial portion of the housing 110 covering 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 plastic coating of the housing 110 must not cover the axial outer surface of the tooth shoulders of the stator core 133, facilitating more precise and effective control of the axial air gap between the tooth shoulders and the permanent magnet.

[0207] Example 15:

[0208] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0209] like Figure 6 and Figure 7 As shown, the first rotor 144 includes a first rotor disk 1442 and a plurality of first magnetic elements 1444; the first rotor disk 1442 is sleeved on the first rotating shaft 142; the plurality of first magnetic elements 1444 are arranged along the circumference of the first rotor disk 1442 and are in contact with at least one end face of the first rotor disk 1442 in the axial direction.

[0210] In this embodiment, the first magnetic element 1444 is attached to the first rotor disk 1442. While ensuring the performance of the power assembly 100 that functions the first rotor 144, the number of parts is reduced, the structure of the first rotor 144 is simplified, the processing and assembly of the first rotor 144 is made easier, the processing cost and part cost of the first rotor 144 are reduced, and thus the cost of the first rotor 144 is lower.

[0211] Furthermore, since multiple first magnetic components 1444 are arranged circumferentially along the first rotor disk 1442 and fit into at least one of the multiple end faces of the first rotor disk 1442 in the axial direction, standard tooling can be used to position the first magnetic components 1444 when assembling them. There is no need to machine a positioning structure on the first rotor disk 1442 to position the first magnetic components 1444, which simplifies the machining process of the first rotor disk 1442 and further reduces the machining difficulty and cost of the first rotor 144.

[0212] The first magnetic component 1444 is a permanent magnet, with the N and S poles of two adjacent permanent magnets arranged alternately, or two adjacent permanent magnets arranged in a Halebeck array.

[0213] Multiple first magnetic elements 1444 are disposed on the same end face of the first rotor disk 1442 and arranged circumferentially along the first rotor disk 1442. The N poles and S poles of two adjacent first magnetic elements 1444 are arranged alternately, or two adjacent first magnetic elements 1444 are arranged in a Halebeck array.

[0214] Multiple first magnetic elements 1444 are disposed on the end faces of both sides of the first rotor disk 1442, with the first magnetic elements 1444 on the same end face arranged circumferentially along the first rotor disk 1442. The N poles and S poles of two adjacent first magnetic elements 1444 on the same end face are arranged alternately, or two adjacent first magnetic elements 1444 are arranged in a Halebeck array. The first magnetic elements 1444 on the two end faces are symmetrically arranged relative to the first rotor disk 1442.

[0215] The first rotor disk 1442 is disk-shaped, which makes the structure of the first rotor disk 1442 simple and the shape regular.

[0216] Example 16:

[0217] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0218] like Figure 2 and Figure 4As shown, the first rotor disk 1442 includes a first magnetic conductive part 1446 and a first connecting part 1448. A plurality of first magnetic elements 1444 are disposed on the first magnetic conductive part 1446, and the first magnetic conductive part 1446 is disposed on a plurality of first connecting parts 1448. The first connecting parts 1448 are connected to the first rotating shaft 142.

[0219] The first connecting part 1448 and the first rotating shaft 142 are made of the same material. The first connecting part 1448 and the first rotating shaft 142 are either an integral structure or a separate structure.

[0220] The first rotor disk 1442 is a magnetically conductive metal component.

[0221] Example 17:

[0222] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0223] like Figure 2 and Figure 4 As shown, the second rotor 182 includes a second rotor disk 1822 and a plurality of second magnetic elements 1824; the second rotor disk 1822 is sleeved on the second rotating shaft 184; the plurality of second magnetic elements 1824 are arranged along the circumference of the second rotor disk 1822 and are in contact with at least one end face of the second rotor disk 1822 in the axial direction.

[0224] In this embodiment, the second magnetic element 1824 is attached to the second rotor disk 1822. While ensuring the performance of the power assembly 100 that functions the second rotor 182, the number of parts is reduced, the structure of the second rotor 182 is simplified, the processing and assembly of the second rotor 182 are made easier, the processing cost and part cost of the second rotor 182 are reduced, and thus the cost of the second rotor 182 is lower.

[0225] Furthermore, since multiple second magnetic components 1824 are arranged circumferentially along the second rotor disk 1822 and fit into at least one of the multiple end faces of the second rotor disk 1822 in the axial direction, standard tooling can be used to position the second magnetic components 1824 when assembling them. There is no need to machine a positioning structure on the second rotor disk 1822 to position the second magnetic components 1824, which simplifies the machining process of the second rotor disk 1822 and further reduces the machining difficulty and cost of the second rotor 1822.

[0226] The second magnetic component 1824 is a permanent magnet, with the N and S poles of two adjacent permanent magnets arranged alternately, or two adjacent permanent magnets arranged in a Halebeck array.

[0227] Multiple second magnetic elements 1824 are disposed on the same end face of the second rotor disk 1822 and arranged circumferentially along the second rotor disk 1822. The N poles and S poles of two adjacent second magnetic elements 1824 are arranged alternately, or two adjacent second magnetic elements 1824 are arranged in a Halebeck array.

[0228] Multiple second magnetic elements 1824 are disposed on the end faces of both sides of the second rotor disk 1822, with the second magnetic elements 1824 on the same end face arranged circumferentially along the second rotor disk 1822. The N poles and S poles of two adjacent second magnetic elements 1824 on the same end face are arranged alternately, or two adjacent second magnetic elements 1824 are arranged in a Halebeck array. The second magnetic elements 1824 on the two end faces are symmetrically arranged relative to the second rotor disk 1822.

[0229] The second rotor disk 1822 is disk-shaped, which makes the structure of the second rotor disk 1822 simple and the shape regular.

[0230] Example 18:

[0231] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0232] like Figure 2 and Figure 4 As shown, the second rotor disk 1822 includes a second magnetic conductive part 1826 and a second connecting part 1828. A plurality of second magnetic elements 1824 are disposed on the second magnetic conductive part 1826, and the second magnetic conductive part 1826 is disposed on a plurality of second connecting parts 1828. The second connecting parts 1828 are connected to the second rotating shaft 184.

[0233] The second connecting part 1828 and the second rotating shaft 184 are made of the same material. The second connecting part 1828 and the second rotating shaft 184 are either an integral structure or a separate structure.

[0234] Example 19:

[0235] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0236] The second rotor disk 1822 is a magnetically conductive metal component.

[0237] For the rotor assembly, the magnetic conductive part, the connecting part and the rotating shaft of the rotor disk are fixedly connected. The three can be made into one part, or the magnetic conductive part and the connecting part can be made into one part, or the connecting part and the rotating shaft can be made into one part, and then injection molded and welded into a single structure. Alternatively, threaded connection and interference fit can be used to form a fixed structure. At least the magnetic conductive part connected to the permanent magnet must be made of magnetic conductive material.

[0238] Example 20:

[0239] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0240] like Figure 7 As shown, the stator assembly 130 includes a stator core 133, a first winding, and a second winding. The stator core 133 includes a stator yoke 1332, a first stator tooth 1334, and a second stator tooth 1336. The first stator tooth 1334 and the second stator tooth 1336 are respectively disposed on both sides of the stator yoke 1332. The first winding is wound around the first stator tooth 1334, and the second winding is wound around the second stator tooth 1336. A first channel is provided inside the stator core 133.

[0241] The stator core 133 includes a stator yoke 1332, a first stator tooth 1334, and a second stator tooth 1336. This design reduces both the machining difficulty of the stator core 133 and the winding difficulty of the first and second windings. The stator yoke 1332 can be formed by stacking multiple stator laminations, and the first stator tooth 1334 and second stator tooth 1336 can also be formed by stacking multiple stator laminations. Alternatively, the stator core 133 can be a single, integral structure.

[0242] Example 21:

[0243] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0244] like Figure 7 As shown, the stator yoke 1332 is provided with multiple slots along the circumference. Any one of the multiple slots extends radially along the stator yoke 1332. The first stator tooth 1334 and the second stator tooth 1336 are engaged in the multiple slots, which makes the stator core 133 simple in structure, easy to process, and easy to assemble.

[0245] The first stator tooth 1334 and the second stator tooth 1336 both include a body, a first engaging part and a second engaging part. The first engaging part and the second engaging part are 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.

[0246] When the first winding or the second winding is wound on the body, the first winding or the second winding engages with the first snap-fit ​​part on one side in the axial direction. The stator yoke 1332 is ring-shaped and snaps onto the second snap-fit ​​part, engaging with the first winding or the second winding on the other side in the axial direction. Thus, the stator yoke 1332 and the first snap-fit ​​part fix the first winding or the second winding onto the body.

[0247] The first stator tooth 1334 and the second stator tooth 1336 can be an integral structure or a separate structure.

[0248] Example 22:

[0249] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0250] like Figure 7 As shown, the stator assembly 130 also includes an insulating frame 134, a mounting bracket 135, and a plurality of pins 136.

[0251] An insulating frame 134 is sleeved on the outside of the first stator tooth 1334 and / or the second stator tooth 1336, and the first winding and / or the second winding is wound on the insulating frame 134. A mounting bracket 135 is fixedly connected to the insulating frame 134; a plurality of pins 136 are inserted into the mounting bracket 135, and the leads of the first winding and the second winding are fixedly connected to the plurality of pins 136.

[0252] The mounting bracket 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 bracket 135 is an arc-shaped strip structure coaxial with the stator assembly 130, and the mounting bracket 135 and the plurality of pins 136 are located radially outside the first rotor 144 and the second rotor 182. This makes the structure of the power assembly 100 relatively regular and less likely to interfere with the internal magnetic field of the power assembly 100, while facilitating connection with external wiring.

[0253] Example 23:

[0254] This embodiment provides a power assembly 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0255] like Figure 3 and Figure 4 As shown, the power assembly 100 also includes an electronic control board 194, which is built between the first rotor 144 disk and the first encapsulation cover 122, or built between the second rotor 182 disk and the second encapsulation cover 124.

[0256] The placement of the electronic control board 194 facilitates the automated control of the power assembly 100. By placing the electronic control board 194 on any side of the power assembly 100 and between the rotor assembly and the encapsulation cover on that side, the stability of the electronic control board 194 is ensured, and the circuit output of the electronic control board 194 is also facilitated.

[0257] Example 24:

[0258] The present invention provides a fan including a power component 100 as described in any of the above embodiments, and thus the fan includes all the beneficial effects of the power component 100 as described in any of the above embodiments.

[0259] The power component 100 is an electric motor.

[0260] Example 25:

[0261] like Figure 8 As shown, this embodiment provides a fan, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0262] The fan also includes a first fan blade 200 and a second fan blade 300. The first fan blade 200 is sleeved on the first shaft extension end of the first rotating shaft 142, and the second fan blade 300 is sleeved 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.

[0263] In the claims, description, and accompanying drawings of this invention, the term "plural" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the descriptive process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limiting the invention. The terms "connected," "installed," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection between multiple objects, 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 those skilled in the art, the specific meaning of the above terms in this invention can be understood based on the specific circumstances described above.

[0264] In the claims, description, and accompanying drawings of this invention, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In the claims, description, and accompanying drawings of this invention, illustrative expressions 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 one or more embodiments or examples.

[0265] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A power component, characterized in that, include: A stator assembly, wherein 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 and can drive the first rotating shaft to rotate. The first rotor is disposed on one side of the stator assembly and forms an axial air gap with the stator assembly. The first rotating shaft is provided with a second channel. At least one first support component is sleeved on the first rotating shaft, disposed within the first channel, and connected to the stator assembly; At least one second support component is disposed within the second channel and connected to the first rotating shaft; The second rotor assembly includes a second rotating shaft, which is inserted into the at least one second support member; The third support component is sleeved on the second rotating shaft and disposed within the first channel; A bearing housing assembly disposed within the first channel; The bearing housing assembly includes: A first bearing housing, wherein the first supporting component is disposed within the first bearing housing; The second bearing housing is spaced apart from the first bearing housing, and the third support member is disposed inside the second bearing housing; A connecting component, one side of which is connected to the first bearing housing and the other side of which is connected to the second bearing housing; The second rotor assembly also includes: The second rotor 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; The stator assembly includes: case; The first stator is disposed within the housing and is adapted to the first rotor; The second stator is disposed within the housing and is axially arranged with the first stator. It is adapted to the second rotor. The first stator and the second stator are fixedly connected, uncoupled, independent functional units.

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

3. The power assembly according to claim 1, characterized in that, The at least one second support component is a rolling bearing or a sliding bearing, and the at least one first support component is offset from the at least one second support component in the axial direction.

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

5. The power assembly according to claim 1, characterized in that, The number of the at least one first support component is one, which is sleeved on one end of the first rotating shaft.

6. The power assembly according to claim 1, characterized in that, The bearing housing assembly also includes: A first cover plate is placed on the first bearing seat to position the first support component; The second cover plate is placed on the second bearing seat to position the third support component.

7. The power assembly according to claim 1, characterized in that, Also includes: A first encapsulation cover is fastened to one side of the stator assembly.

8. The power assembly according to claim 7, characterized in that, The first pivot passes through the first encapsulation cover and extends outward from the housing.

9. The power assembly according to claim 8, characterized in that, Also includes: A second encapsulation cover is fastened to the other side of the housing; The second pivot passes through the second encapsulation cover and extends outward from the housing.

10. The power assembly according to claim 8, characterized in that, The second shaft passes through the first shaft and extends outward from the first shaft.

11. The power assembly according to claim 1, characterized in that, Also includes: The third rotating shaft is inserted into the second channel and connected to the first rotating shaft.

12. The power assembly according to any one of claims 8 to 10, characterized in that, The housing is a plastic component that covers the outside of the stator assembly to secure the stator assembly and the bearing housing assembly.

13. A fan, characterized in that, Includes the power assembly as described in any one of claims 1 to 12.

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