Shaftless disc type motor and rotor power system

Abstract

The utility model discloses a shaftless disc-type motor and a rotor power system, relates to the technical field of disc-type motors, and solves the technical problem that the conventional disc-type motor needs to be further improved in the aspects of light weight and heat dissipation. The axial suspension supporting device comprises a driving system and an axial suspension supporting assembly, the driving system comprises at least one rotor ring and at least one stator, the stator is arranged above and / or below the rotor ring, and the driving assembly is arranged between the rotor ring and the stator and used for driving the rotor ring to rotate relative to the stator. A through hole is formed in the middle of the rotor ring, and the axial magnetic suspension supporting assembly is arranged between at least one stator and the rotor ring in the axial direction and used for achieving suspension between the stators and the rotor ring. The LED lamp has the advantages of being light in weight, good in heat dissipation effect and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of disc motors, and in particular relates to a shaftless disc motor and a rotor power system. Background Art

[0002] The rotor power system is one of the core components of a rotorcraft, which generally includes a drive part, namely the motor, a rotor part, and a structure that can maintain rotational stability, such as axial and radial limit assemblies.

[0003] According to the different motor structures, it can be divided into disc motors and non-disc motors. The non-disc motor is a traditional cylindrical motor whose rotor and stator are arranged radially, while the rotor and stator of the disc motor are arranged axially.

[0004] Whether it is a disc motor or a non-disc motor, when it is used to drive a rotor power system, a central axis is generally set to ensure structural stability and rotational smoothness. For example, in the previous patent of this team, the publication number is CN118238996A, and the patent name is: A magnetic levitation power rotor system with a central drive of a disc motor and its aircraft. Although it also uses a disc motor, it has a central axis, and the upper and lower stators are fixedly connected to the central axis. A rotor ring is set between the upper and lower stators, and the rotor is connected to the rotor ring. When the rotation drive module set between the rotor ring and the stator drives the rotor ring to rotate, it will drive the rotor to rotate and generate lift.

[0005] Due to the design of the central axis, the weight will increase, and since the entire drive system is integrated near the central axis, heat dissipation will be difficult to a certain extent. In particular, when the motor is running at high speed, the motor drive system will generate a large amount of heat. If the large amount of heat generated is not discharged and dissipated in time, it will have a serious impact on the service life and various performances of the motor.

[0006] Based on the problems existing in the above-mentioned existing patents, it is necessary to study a disc motor that is lighter and has better heat dissipation. Utility Model Content

[0007] The technical problem to be solved by the present invention is that the existing disc motor still needs to be further improved in terms of lightness and heat dissipation.

[0008] In order to solve the above-mentioned technical problems, the technical solutions adopted by this invention are as follows:

[0009] A shaftless disc motor, comprising a drive system, an axial magnetic suspension support system,

[0010] The drive system includes at least one rotor ring and at least one stator. The stator is arranged above and / or below the rotor ring. A drive assembly is arranged between the rotor ring and at least one stator for driving the rotor ring to rotate relative to the stator. A through hole is provided in the middle of the rotor ring.

[0011] The axial magnetic suspension support assembly is arranged axially between at least one stator and the rotor ring to achieve suspension between the stator and the rotor ring.

[0012] In the present invention, the force driving the rotor ring to rotate is generated by the interaction between the rotor ring and the stator, thereby realizing the rotation of the rotor ring relative to the stator; by setting an axial magnetic levitation support component, magnetic levitation is generated between the rotor ring and the stator, thereby reducing the rotational friction; in the present invention, the rotor ring and the stator constitute the drive system of the disc motor, so that the central axis is removed from the present invention, making the entire disc motor lighter, and the axial magnetic levitation support component is used to enable the disc motor to start without friction and keep the rotor ring suspended during rotation, thereby reducing friction, lowering energy consumption, and making the rotation smoother; in the present invention, by setting a through hole, on the one hand, the overall weight of the disc motor can be reduced, and on the other hand, the heat generated by the drive system between the rotor ring and the stator can be diffused outward through the through hole and through the suspension gap between the stator and the rotor ring, thereby enhancing the heat dissipation effect, extending the life of the motor, and improving the reliability of the disc motor.

[0013] Furthermore, the axial magnetic suspension support assembly includes a first axial magnetic assembly arranged on the rotor ring and a second axial magnetic assembly cooperatively arranged on the stator.

[0014] The first axial magnetic assembly and the second axial magnetic assembly may constitute a controllable magnetic suspension system, or both of them may be permanent magnets constituting a permanent magnet system.

[0015] Furthermore, the axial magnetic suspension support assembly is a controllable magnetic suspension assembly, that is, the first axial magnetic assembly and the second axial magnetic assembly constitute a controllable magnetic suspension system.

[0016] Controllable magnetic levitation systems such as electromagnetic levitation systems or superconducting magnetic levitation systems.

[0017] In the present invention, by providing a controllable magnetic suspension system, the magnetic force of the magnetic suspension system can be controlled according to the actual working needs and status of the disc motor, thereby adapting to different speed conditions and ensuring the stability and reliability of the entire disc motor.

[0018] Furthermore, a heat dissipation structure is provided on the inner wall of the through hole to further improve the heat dissipation effect of the system.

[0019] After adopting this technical solution, it should be noted that the airflow is guided by the heat dissipation structure, which facilitates the heat generated by the disc motor to be directed to the suspension gap between the stator and the rotor, accelerating the heat exchange between the internal hot air and the external cold air, thereby improving the heat dissipation performance.

[0020] Furthermore, the stator is provided with a heat dissipation microchannel connected to the through hole and the outside.

[0021] After adopting this technical solution, it should be noted that the heat generated by the drive system between the stator and rotor rings gradually increases in the through-hole, causing the air to expand. The hot air flow will flow to the outside through the heat dissipation microchannels and gaps for heat exchange, reducing the heat of the drive system, improving the heat dissipation efficiency, and increasing the service life of the disc motor.

[0022] Furthermore, a concave portion is provided on one side of the stator close to the through hole, and the heat dissipation microchannel is communicated with the concave portion.

[0023] After adopting this technical solution, it should be noted that the inner recess expands the space at the through hole, and the setting of the heat dissipation microchannel increases the circulation of the hot air flow in the through hole and the outside world, so that the hot air flow in the through hole can be discharged more quickly, further improving the heat dissipation effect.

[0024] Furthermore, a radial limiting assembly is provided between the stator and the rotor ring to ensure that the stator and the rotor ring are supported and stable in the radial direction.

[0025] Furthermore, the radial limiting assembly includes a first radial assembly and a second radial assembly, the first radial assembly is arranged on the stator, and the second radial assembly is arranged on the rotor ring.

[0026] Furthermore, the first radial component and the second radial component constitute a magnetic suspension system. Preferably, the first radial component and the second radial component constitute a controllable magnetic suspension system.

[0027] After adopting this technical solution, it should be noted that the radial limit assembly ensures that the rotor ring is in a radial position corresponding to the stator, preventing the rotor ring from shifting or shaking during rotation, which affects the performance of the motor.

[0028] Furthermore, the rotor ring is provided with a groove or a raised track, and the stator is provided with a raised track or a groove, and the groove and the raised track correspond to and cooperate with each other.

[0029] After adopting this technical solution, it should be noted that the mutual cooperation between the groove and the raised track further limits the rotor ring in the radial direction. Even in extreme cases, the mutual cooperation between the groove and the raised track can prevent the rotor ring from being separated from the stator due to various external factors, causing the motor to fail to work normally or even cause damage.

[0030] Furthermore, the radial limiting component is provided in cooperation with the side wall of the groove and the side wall of the raised track, and the axial magnetic suspension support component is provided in cooperation between the groove and the raised track.

[0031] After adopting this technical solution, it should be noted that the matching structure of the groove and the raised track also makes it convenient to install the radial limit assembly and the axial magnetic levitation support assembly in the groove and the raised track in the radial and axial directions, making the structure more compact.

[0032] In another stator and rotor ring matching structure, the side wall of the stator is provided with an axial extension portion, the inner side wall of the extension portion and the outer side wall of the rotor ring are matched to set a radial limit assembly, and the inner top wall of the stator and the top of the rotor ring are matched to set the axial magnetic levitation support assembly.

[0033] In this embodiment, the outer extension of the stator encloses the upper part of the rotor ring, and a radial limiting assembly and an axial magnetic suspension support assembly are correspondingly provided, so that the axial support and radial limiting effects are good and the structure is compact.

[0034] Furthermore, the stator includes an upper stator and a lower stator, and the upper stator and the lower stator are respectively arranged on the upper and lower sides of the rotor ring. A driving assembly is provided between the rotor ring and the upper stator and / or the lower stator for driving the rotor ring to rotate relative to the stator.

[0035] After adopting this technical solution, it should be noted that the double stators and rotor rings cooperate to form a double stator structure. When drive components are set between the two stators and the rotor ring, the torque and power density of the disc motor can be improved, thereby improving the overall performance of the disc motor.

[0036] Furthermore, the drive assembly includes an iron core arranged at the lower end of the upper stator and / or the upper end of the lower stator, a drive coil wound around the iron core, and a permanent magnet arranged at the upper end and / or lower end of the rotor ring.

[0037] After adopting this technical solution, it should be noted that when the drive coil is energized, it can cooperate with the permanent magnet to generate a rotational driving force, so that the rotor ring can rotate relative to the stator. The through hole in the middle of the rotor ring and the gap between the rotor ring and the stator, as well as the connection with the outside world, can achieve good heat dissipation, extend the life of the motor, and improve the reliability of the disc motor.

[0038] As a preferred arrangement of the drive system, radial limit assembly and axial magnetic levitation support assembly, the lower end surfaces of the lower stator and rotor ring are cooperated to set the axial magnetic levitation support assembly, and the upper end surfaces of the upper stator and rotor ring are cooperated to set the drive assembly.

[0039] Preferably, the upper stator and the lower stator are fixedly connected via a connecting piece, and the connecting piece passes through the through hole.

[0040] After adopting this technical solution, it should be noted that a connecting piece is provided between the upper stator and the lower stator, and the connecting piece passes through the through hole to connect and fix the upper stator and the lower stator; in addition, it should be noted that the connecting piece can be a bolt, or a connecting rod or other structure that can achieve a fixed connection.

[0041] Preferably, the drive system includes N rotor rings and N+1 stators, which constitute N drive modules, where one or two stators and one rotor ring constitute one drive module, where N is greater than or equal to 2. It should be noted that after adopting this technical solution, a dual-stator structure is used as a drive module to drive the rotation of one rotor ring. Multiple drive modules can be combined according to actual needs to improve the overall performance of the drive system.

[0042] A rotor power system comprises the above-mentioned disc motor, wherein a rotor is provided on the outer side wall of the rotor ring.

[0043] After adopting this technical solution, it should be noted that when the present invention is used in a rotor power system, there are two ways to connect and fix the upper stator and the lower stator. One is that the upper stator and the lower stator are respectively connected to the frame of the rotor power system, and the positions of the upper stator and the lower stator are fixed by the frame; the other is by arranging a connecting piece between the upper stator and the lower stator, the connecting piece passes through the through hole, and the upper stator and the lower stator are fixed by this connecting piece, and the upper stator and / or the lower stator are then connected to the frame; finally, it should be noted that the connecting piece can be a bolt, or it can be a connecting rod or other structure that can achieve fixed connection.

[0044] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0045] 1. The utility model provides a shaftless disc motor, which adopts a decentralized shaft design, making the entire disc motor lighter. Through the axial magnetic suspension support assembly, the disc motor can be started without friction and the rotor ring can be kept suspended during rotation, thereby reducing friction, lowering energy consumption and making rotation smoother.

[0046] 2. The utility model provides a shaftless disc motor. By providing a through hole, on the one hand, the overall weight of the disc motor can be reduced. On the other hand, the heat generated by the drive system between the rotor ring and the stator can be diffused outward through the through hole and through the suspension gap between the stator and the rotor ring, thereby enhancing the heat dissipation effect, extending the life of the motor, and improving the reliability of the disc motor.

[0047] 3. The utility model provides a shaftless disc motor, which provides a heat dissipation structure at the through hole. The heat dissipation structure is driven to rotate under the action of the rotation of the rotor ring, thereby forming a gas diversion effect and further improving the heat dissipation performance.

[0048] 4. The utility model provides a shaftless disc motor, which is provided with stators on the upper and lower sides of a rotor ring, wherein the lower stator and the lower end surface of the rotor ring are cooperated with the axial magnetic levitation support assembly, and the upper stator and the upper end surface of the rotor ring are cooperated with the drive assembly, and a radial limit assembly is provided between the side wall of the extended part of the stator and the rotor ring. Through the reasonable configuration of various components, the structure is simplified while ensuring lightweight and reducing energy consumption.

[0049] 5. The utility model provides a shaftless disc motor, which can set the number of layers according to actual performance requirements by setting a multi-layer double-stator motor structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0051] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0052] Figure 2 For this utility model Figure 1 A schematic diagram of a half-section structure;

[0053] Figure 3 This is a schematic diagram of the rotor ring structure from a top view of the present invention;

[0054] Figure 4 This is a bottom view of the structure of the upper stator or the first stator of the present invention;

[0055] Figure 5 This is a schematic diagram of a half-section structure of a rotor ring of the utility model with raised rails arranged on the upper and lower sides;

[0056] Figure 6 This is a schematic diagram of a half-section structure of a heat dissipation structure provided in a through hole of the present invention;

[0057] Figure 7 This is a schematic diagram of a half-section structure of a stator provided with an inner recess in the present invention;

[0058] Figure 8 A schematic diagram of a half-section structure of a stator provided with heat dissipation microchannels according to the present invention;

[0059] Figure 9 This is a schematic diagram of the overall structure of the multi-layer rotor power system of the utility model;

[0060] Figure 10 This is a schematic diagram of the overall structure of the single-layer rotor power system of the utility model.

[0061] Reference numerals:

[0062] 1-rotor, 2-through hole, 201-heat dissipation structure, 202-upper inner recess, 203-lower inner recess, 3-radial limit assembly, 301-first radial assembly, 302-second radial assembly, 4-axial magnetic levitation support assembly, 401-first axial magnetic assembly, 402-second axial magnetic assembly, 5-rotor ring, 501-first rotor ring, 502-second rotor ring, 503-magnet, 6-stator, 601-extension, 602-iron core, 603-drive coil, 604-upper stator, 605-lower stator, 606-first stator, 607-second stator, 608-third stator, 7-heat dissipation microchannel, 8-groove, 9-raised track, 10-connector. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and indicated in the accompanying drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0064] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the practical product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0065] The following combination Figures 1-10 The utility model is described in detail.

[0066] like Figures 1-10 As shown, a shaftless disc motor includes a drive system and an axial suspension support assembly 4.

[0067] The drive system includes at least one rotor ring 5 and at least one stator 6. The stator 6 is arranged above and / or below the rotor ring 5. A through hole 2 is provided in the middle of the rotor ring 5.

[0068] The axial magnetic suspension support assembly 4 is axially arranged between at least one stator 6 and the rotor ring 5 to achieve suspension between the stator 6 and the rotor ring 5 .

[0069] In this embodiment, a rotor ring 5 and an upper stator 604 located above the rotor ring 5 constitute a driving system.

[0070] In this embodiment, the interaction between the rotor ring 5 and the stator 6 generates a force to drive the rotor ring 5 to rotate, thereby realizing the rotation of the rotor ring 5 relative to the stator 6; by providing an axial magnetic levitation support assembly 4, magnetic levitation is generated between the rotor ring 5 and the stator 6, thereby realizing low-friction rotation; in the present utility model, the rotor ring 5 and the stator 6 constitute a disc motor as the drive system of the rotor power system. The present utility model removes the central axis, making the entire disc motor lighter. Through the axial magnetic levitation support assembly 4, the rotor ring 5 of the disc motor remains suspended during rotation during operation, reducing friction, lowering energy consumption, and making the rotation smoother; in the present utility model, by providing a through hole 2, on the one hand, the overall weight of the disc motor can be reduced, and on the other hand, the heat generated by the drive system between the rotor ring 5 and the stator 6 can be diffused outward through the through hole 2 and through the suspension gap between the stator 6 and the rotor ring 5, thereby enhancing the heat dissipation effect, extending the motor life, and improving the reliability of the disc motor.

[0071] The axial magnetic levitation support assembly 4 includes a first axial magnetic assembly 401 arranged on the rotor ring 5 and a second axial magnetic assembly 402 arranged on the stator 6. The first axial magnetic assembly 401 and the second axial magnetic assembly 402 can constitute a controllable magnetic levitation system or both are permanent magnets to constitute a permanent magnet system.

[0072] In this embodiment, the axial magnetic suspension support assembly 4 is a controllable magnetic suspension assembly, that is, the first axial magnetic assembly 401 and the second axial magnetic assembly 402 constitute a controllable magnetic suspension system, such as an electromagnetic suspension system or a superconducting magnetic suspension system.

[0073] In this embodiment, the controllable magnetic levitation system adopts a superconducting magnetic levitation system, that is, the first axial magnetic component 401 is a superconducting magnet, and the second axial magnetic component 402 is a permanent magnet. The superconducting magnetic levitation system has a pinning effect, which can not only play an axial suspension role, but also a radial limiting role, thereby omitting the use of the radial limiting component 3.

[0074] In another embodiment, a radial limiting assembly 3 is further provided between the stator 6 and the rotor ring 5 to ensure the stable suspension of the stator 6 and the rotor ring 5 in the radial direction. The radial limiting assembly 3 includes a first radial assembly 301 and a second radial assembly 302. The first radial assembly 301 is provided on the stator 6, and the second radial assembly 302 is provided on the rotor ring 5. The first radial assembly 301 and the second radial assembly 302 constitute a magnetic suspension system.

[0075] In this embodiment, the first radial component 301 and the second radial component 302 constitute a permanent magnet system.

[0076] In this embodiment, the first radial component 301 and the second radial component 302 may also adopt a controllable magnetic suspension system.

[0077] In another embodiment, Figure 6 and Figure 8 As shown, the inner wall of the through hole 2 is provided with a heat dissipation structure 201, which guides the airflow through the heat dissipation structure 201, so as to facilitate the heat generated by the disc motor to be directed to the suspended gap between the stator 6 and the rotor ring 5, thereby accelerating the entry of external cold air and the discharge of internal hot air, and further improving the heat dissipation effect of the system.

[0078] In another embodiment, Figure 8 As shown, the stator 6 is provided with a heat dissipation micro-channel 7 connected to the through hole 2 and the outside world. The heat generated by the drive system between the stator 6 and the rotor ring 5 gradually increases, causing the air to expand. The hot air flow will flow to the outside world through the gap between the rotor ring 5 and the stator 6 and the heat dissipation micro-channel 7 for heat exchange, thereby reducing the heat of the drive system and increasing the service life of the disc motor.

[0079] In another embodiment, Figure 7 and Figure 8 As shown, an inner recess is provided on one side of the stator 6 close to the through hole 2, and the heat dissipation microchannel 7 is connected to the inner recess. The inner recess expands the space at the through hole 2. The setting of the heat dissipation microchannel 7 increases the flow of hot air in the through hole 2 and the outside world, so that the hot air in the through hole is discharged more quickly, further improving the heat dissipation effect.

[0080] In this embodiment, if Figure 8 As shown, when there are two stators 6, they are an upper stator 604 located above the rotor ring 5 and a lower stator 605 located below the rotor ring 5. An upper inner recess 202 is provided on the side of the upper stator 604 close to the through hole 2, and a lower inner recess 203 is provided on the side of the lower stator 605 close to the through hole 2.

[0081] In this embodiment, if Figure 2 and Figure 5-Figure 8As shown, the rotor ring 5 is provided with a raised track 9, and the stator 6 is provided with a groove 8. The groove 8 and the raised track 9 correspond to and cooperate with each other. Through the mutual cooperation between the groove 8 and the raised track 9, the rotor ring 5 is further restricted in the radial direction. Even in extreme cases, the mutual cooperation between the groove 8 and the raised track 9 can prevent the rotor ring 5 from being separated from the stator 6 due to various external factors, causing the motor to malfunction or even cause damage.

[0082] In this embodiment, the groove 8 and the raised track 9 can be interchanged as long as they can fit together.

[0083] In this embodiment, the radial limit assembly 3 is provided in cooperation with the side wall of the groove 8 and the side wall of the raised track 9, and the axial magnetic levitation support assembly 4 is provided between the groove 8 and the raised track 9, so that the radial limit assembly 3 and the axial magnetic levitation support assembly 4 can be conveniently installed in the radial and axial directions of the groove 8 and the raised track 9, making the structure more compact.

[0084] In another embodiment, the side wall of the stator 6 is provided with an axial extension portion 601, the inner side wall of the extension portion 601 cooperates with the outer side wall of the rotor ring 5 to set a radial limit component 3, and the inner top wall of the stator 6 cooperates with the top of the rotor ring 5 to set the axial magnetic levitation support component 4. In this embodiment, the extension portion 601 of the stator 6 encloses the upper part of the rotor ring 5, and the radial limit component 3 and the axial magnetic levitation support component 4 are correspondingly provided, with good axial support and radial limiting effects and a compact structure.

[0085] In another embodiment, Figure 1 、 Figure 2 and Figure 5-Figure 8 As shown, the drive system includes a rotor ring 5 and two stators 6, the stator 6 includes an upper stator 604 and a lower stator 605, the upper stator 604 and the lower stator 605 are respectively arranged on the upper and lower sides of the rotor ring 5, and a drive component is provided between the rotor ring 5 and the upper stator 604 and / or the lower stator 605. When the drive component is provided between the two stators and the rotor ring 5, the dual-stator structure formed in this embodiment can improve the torque and power density of the disc motor, thereby improving the overall performance of the disc motor.

[0086] In this embodiment, if Figure 2-Figure 8As shown, the drive assembly includes an iron core 602 arranged at the lower end of the upper stator 604 and / or the upper end of the lower stator 605, a drive coil 603 wound around the iron core 602, and a magnet 503 arranged at the upper end and / or lower end of the rotor ring 5. In this embodiment, the drive coil 603 can cooperate with the magnet 503 to generate a rotational driving force when energized, so that the rotor ring 5 can rotate relative to the stator 6. The through hole 2 in the middle of the rotor ring 5 and the gap between the rotor ring 5 and the stator 6, as well as the external connection, can achieve good heat dissipation, extend the life of the motor, and improve the reliability of the rotor 1 power system.

[0087] In this embodiment, the lower end surface of the lower stator 605 and the rotor ring 5 cooperate to set the axial magnetic suspension support assembly 4, and the upper end surface of the upper stator 604 and the rotor ring 5 cooperate to set the driving assembly.

[0088] In this embodiment, the upper stator 604 and the lower stator 605 are fixedly connected by a connecting member 10, and the connecting member 10 passes through the through hole 2. By arranging the connecting member 10 between the upper stator 604 and the lower stator 605, and the connecting member 10 passes through the through hole 2, the upper stator 604 and the lower stator 605 are fixed by the connecting member 10. In another embodiment, the upper stator 604 and the lower stator 605 are respectively connected to the frame of the rotor power system, and the positions of the upper stator 604 and the lower stator 605 are fixed by the frame.

[0089] In this embodiment, the connecting member 10 may be a bolt, or a connecting rod or other structure that can achieve a fixed connection.

[0090] In another embodiment, the drive system includes N rotor rings 5 ​​and N+1 stators 6, and the N rotor rings 5 ​​and N+1 stators 6 constitute N drive modules, wherein one or two stators 6 and one rotor ring 5 constitute a drive module, where N is a natural number greater than or equal to 2. Multiple drive modules can be combined according to actual needs to improve the overall performance of the drive system.

[0091] A rotor propulsion system, such as Figure 10 As shown, the drive system includes a rotor ring 5 and two stators. The stator includes an upper stator 604 and a lower stator 605. The upper stator 604 and the lower stator 605 are respectively arranged on the upper and lower sides of the rotor ring 5. Four rotors 1 distributed in a single layer are arranged on the outer side of the rotor ring 5.

[0092] In another rotor propulsion system, such as Figure 9As shown, N=2, the drive system includes two rotor rings 5 ​​and three stators 6, the rotor ring 5 includes a first rotor ring 501 and a second rotor ring 502, the stator 6 includes a first stator 606, a second stator 607 and a third stator 608, the first rotor ring 501 is provided with the first stator 606 and the second stator 607, and the second rotor ring 502 is provided with the second stator 607 and the third stator 608. In this embodiment, the outer walls of the first rotor ring 501 and the second rotor ring 502 are provided with rotor blades 1.

[0093] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shaftless disc motor, characterized in that: It includes a drive system and an axial magnetic suspension support assembly (4), The drive system comprises at least one rotor ring (5) and at least one stator (6), wherein the stator (6) is arranged above and / or below the rotor ring (5), and a drive assembly is arranged between the rotor ring (5) and the at least one stator (6) for driving the rotor ring (5) to rotate relative to the stator (6). A through hole (2) is provided in the middle of the rotor ring (5). The axial magnetic suspension support assembly (4) is arranged axially between at least one stator (6) and the rotor ring (5) to achieve suspension between the stator (6) and the rotor ring (5).

2. The shaftless disc motor according to claim 1, characterized in that: The axial magnetic suspension support component (4) is a controllable magnetic suspension component.

3. A shaftless disc motor according to claim 1 or 2, characterized in that: A radial limiting assembly (3) is provided between the stator (6) and the rotor ring (5) to ensure that the stator (6) and the rotor ring (5) are supported and stabilized in the radial direction.

4. A shaftless disc motor according to claim 1 or 2, characterized in that: The inner wall of the through hole (2) is provided with a heat dissipation structure (201).

5. A shaftless disc motor according to claim 1 or 2, characterized in that: The stator (6) is provided with a heat dissipation microchannel (7) that is in communication with the through hole (2) and the outside world.

6. The shaftless disc motor according to claim 5, characterized in that: An inner recess is provided on one side of the stator (6) close to the through hole (2), and the heat dissipation microchannel (7) is in communication with the inner recess.

7. A shaftless disc motor according to claim 1 or 2, characterized in that: The stator (6) comprises an upper stator (604) and a lower stator (605); the upper stator (604) and the lower stator (605) are respectively arranged on the upper and lower sides of the rotor ring (5); and a driving component is provided between the rotor ring (5) and the upper stator (604) and / or the lower stator (605).

8. The shaftless disc motor according to claim 7, characterized in that: The lower end surface of the lower stator (605) and the rotor ring (5) are cooperatively provided with the axial magnetic suspension support assembly (4), and the upper end surface of the upper stator (604) and the rotor ring (5) are cooperatively provided with the drive assembly.

9. The shaftless disc motor according to claim 1 or 2, characterized in that: The drive system comprises N rotor rings (5) and N+1 stators (6), wherein the N rotor rings (5) and N+1 stators (6) constitute N drive modules, wherein one or two stators (6) and one rotor ring (5) constitute one drive module, wherein N is a natural number greater than or equal to 2.

10. A rotor power system, characterized in that: The shaftless disc motor comprises the one described in any one of claims 1 to 9.

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