Permanent magnet three-phase synchronous motor

Abstract

The invention provides a permanent magnet three-phase synchronous motor, and belongs to the technical field of motors, the permanent magnet three-phase synchronous motor comprises a shell, a plurality of stator windings are uniformly distributed and fixedly mounted on the inner wall of the shell in a circumferential manner, and a swing assembly is arranged among the plurality of stator windings; the swing assembly comprises a plurality of rotor discs which are linearly and uniformly distributed in the middles of the stator windings, two U-shaped arc-shaped grooves are symmetrically and uniformly distributed in the surfaces of the rotor discs, and two arc-shaped elastic plates are symmetrically and uniformly distributed and fixedly connected to the inner walls of the U-shaped arc-shaped grooves; and two sliding rods are symmetrically and uniformly distributed and movably connected to the inner wall of the U-shaped arc-shaped groove. The U-shaped arc-shaped grooves are formed in the rotor disc, the sliding rods arranged in the U-shaped arc-shaped grooves are guided to move along with rotation of the rotor disc, the sliding rods are driven by the disc to move, and load torque is resisted under cooperation of centrifugal force and inertia.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a permanent magnet three-phase synchronous motor. Background Art

[0002] A permanent magnet three-phase synchronous motor, or three-phase permanent magnet synchronous motor, is a synchronous motor that uses permanent magnets as rotor poles. This motor efficiently converts electrical energy into mechanical energy through the interaction between the rotation of the electromagnetic field and the magnetic field of the permanent magnet.

[0003] When the motor is rotating, current flows into the stator winding to generate magnetism, which cooperates with the magnets in the rotor to drive the rotation. However, since the number of coils in the stator winding is fixed, a larger current is required to get rid of the load torque during the starting process, which easily causes a large power consumption.

[0004] For example, the "three-phase synchronous motor" disclosed in the Chinese invention patent (application number: 201910948930.2) discloses in its specification: In the existing industrial production field, common necessary equipment of motors, such as spinning machinery, requires motors to drive the yarn roll to swing up, which requires a large torque at startup. Once the startup is stable, the output power after startup is not required. The current spinning machinery generally uses three-phase asynchronous motors. Since the stator coil of the motor is fixed, after the yarn roll is started and works stably, it still maintains a state close to the rated power, so the power consumption is large. In the current environment where the profit margin of industrial products needs to be refined through management, this type of motor obviously does not meet the production needs of enterprises; the above patents can prove the defects of the existing technology; Therefore, we made improvements to this problem and proposed a permanent magnet three-phase synchronous motor. Summary of the invention

[0005] The purpose of the present invention is to address the problems raised by the current background technology.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides a permanent magnet three-phase synchronous motor to improve the above-mentioned problem.

[0007] The specific application is as follows: A permanent magnet three-phase synchronous motor comprises a shell, wherein a plurality of stator windings are evenly distributed and fixedly mounted on the inner wall of the shell in a circumferential manner, a swing assembly is arranged in the middle of the plurality of stator windings, a mounting assembly is arranged in the middle of the swing assembly, and an auxiliary assembly is arranged on one side of the shell; The swing assembly includes a plurality of rotor disks evenly distributed in a straight line in the middle of a plurality of stator windings, the surfaces of the plurality of rotor disks are symmetrically and evenly distributed with two U-shaped arc grooves, the inner walls of the U-shaped arc grooves are symmetrically and evenly distributed and fixedly connected with two arc spring plates, the inner walls of the U-shaped arc grooves are symmetrically and evenly distributed and movably connected with two sliding rods, both ends of the sliding rods penetrate the rotor disk and are fixedly connected with a disc, and four magnets are evenly distributed circumferentially inside the rotor disk.

[0008] As a preferred technical solution of the present application, the mounting assembly includes a rotating shaft movably mounted in the middle of several rotor disks, side grooves are provided on both sides of the rotating shaft, and several springs are fixedly connected to the inner walls of the side grooves in a straight line and evenly distributed, and a trapezoidal key pin is fixedly connected to one end of the spring away from the rotating shaft, and two semi-frame grooves are symmetrically and evenly distributed in the middle of the rotor disk, and inner oblique grooves are provided above and below the semi-frame grooves, and a slider is movably connected to the inner wall of the inner oblique groove, one end of the slider is fixedly connected to an extension rod, and the other end of the extension rod is fixedly connected to a side spring plate, and the side spring plate is located on the inner wall of the U-shaped arc groove, and arc baffles are fixedly connected to both ends of the inner wall of the U-shaped arc groove in a symmetrically and evenly distributed manner.

[0009] As a preferred technical solution of the present application, internal threaded holes are provided at the opposite ends of the two discs, a threaded rod is movably connected to the inner wall of the internal threaded hole, a bearing frame is provided at the end of the threaded rod away from the disc, and a middle rod is fixedly connected between the two bearing frames on the same axis.

[0010] As a preferred technical solution of the present application, the auxiliary component includes an inner shell movably mounted on the outer wall of the outer shell, the outer wall of the outer shell is evenly distributed circumferentially and fixedly connected with a plurality of heat sinks, several of the heat sinks are movably connected to the inner shell, several of the heat sinks are fixedly connected with an annular plate in the middle, a positioning cylinder is fixedly connected with the upper side of the annular plate, a threaded rod is sleeved on the inner wall of the positioning cylinder, one of the threaded rods is provided with a protrusion at the end away from the bearing frame, and the other threaded rod is provided with a groove at the end away from the bearing frame.

[0011] As a preferred technical solution of the present application, a locating bearing is provided in the middle of one side of the shell, the inner ring of the locating bearing is fixedly connected to an internal threaded ring, the inner wall of the internal threaded ring is movably connected to the outer wall of the rotating shaft, and the rotating shaft passes through the internal threaded ring.

[0012] As a preferred technical solution of the present application, the other end of the rotating shaft is provided with a plurality of positioning grooves evenly distributed in a circle, the inner wall of the positioning groove is movably connected to a limiting block, the other ends of the plurality of limiting blocks are fixedly connected to an auxiliary cone cylinder, and the auxiliary cone cylinder is fixedly connected to an extension shaft at one end away from the rotating shaft.

[0013] As a preferred technical solution of the present application, the auxiliary cone is fixedly connected to an auxiliary ring plate at one end away from the extension shaft, the outer wall of the auxiliary ring plate is movably connected to a limiting ring sleeve, the limiting ring sleeve is fixedly installed with a conical cover, the conical cover is fixedly installed on the inner wall of the inner shell, the inner shell is fixedly connected to a bearing ring in the middle part of a side away from the outer shell, and the bearing ring is movably connected to the extension shaft.

[0014] As a preferred technical solution of the present application, the outer wall of the extension shaft is fixedly connected with a beveled ring plate, and the side surface of the beveled ring plate is fixedly connected with a plurality of arc plates evenly distributed in a circumference.

[0015] As a preferred technical solution of the present application, a plurality of arc-shaped heat dissipation windows are evenly distributed in a circumference on one side of the inner shell away from the outer shell, and a frame is provided at the edge of the arc-shaped heat dissipation window.

[0016] As a preferred technical solution of the present application, two side panels are symmetrically and evenly distributed and fixedly connected below the outer wall of the shell, and a mounting plate is fixedly connected below the side panels.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: 1. In order to solve the problem in the prior art that due to the fixed number of coils in the stator winding, a large current is required to get rid of the load torque during the starting process, which easily causes a large power consumption, a U-shaped arc groove is provided on the rotor disk. As the rotor disk rotates, the slide bar arranged in the U-shaped arc groove is guided to move. The slide bar moves with the drive of the disk, and the load torque is resisted under the cooperation of centrifugal force and inertia, thereby reducing the load torque of the motor during the starting process and reducing the current required to be provided during the starting process, thereby realizing energy saving; 2. The present application uses the trapezoidal key pin to contact the half-frame slot in the rotor disk for quick installation, and cooperates with the slider in the inner inclined slot to move, and the trapezoidal key pin in the half-frame slot can be quickly removed, so that the rotor of the motor can be quickly installed and disassembled, increasing the convenience of its use process; 3. During the rotation, the slide bar slides in the U-shaped arc groove, so that the movable disc can move, thereby guiding the disc to move to the edge of the rotor disc. During the disassembly and assembly process, the slide bar is driven by the disc to push the side spring plate, so that the swing structure and the extrusion structure can be switched; 4. The present application expands the space inside the motor by rotating the shaft and pushing the inner shell to move with the cooperation of the inner threaded rod. While expanding the space, the area of ​​the heat sink exposed on the outer wall of the outer shell becomes larger, so that the space inside the motor can be expanded in accordance with the number of rotors and the heat dissipation area can be increased; 5. During the transportation of the rotor disc, the two threaded rods connected to the middle rod are placed in the middle of the two discs and aligned with the internal threaded holes in the discs. The bearing frame is rotated, and the threaded rod rotates. Due to the arc structure of the U-shaped arc groove, the sliding rod moving toward the middle is locked in the U-shaped arc groove. At this time, the rotor disc can be disassembled by the middle rod. During the shell adjustment process, the rod body structure removed between the two discs in the rotor disc is placed in the auxiliary cylinder to limit the extension length of the outer shell and the inner shell. Multiple rod body structures can be spliced ​​by the protrusions and grooves at the ends of the two threaded rods, so that it can be flexibly switched between the disassembly auxiliary structure and the limiting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the permanent magnet three-phase synchronous motor provided in this application is shown in FIG. Figure 1 ; Figure 2 The overall structure of the permanent magnet three-phase synchronous motor provided in this application is shown in FIG. Figure 2 ; Figure 3 A schematic diagram of a half-section structure of a casing in a permanent magnet three-phase synchronous motor provided in the present application; Figure 4 Schematic diagram of the structure of the swing assembly and the mounting assembly in the permanent magnet three-phase synchronous motor provided in this application Figure 1 ; Figure 5 Schematic diagram of the structure of the swing assembly and the mounting assembly in the permanent magnet three-phase synchronous motor provided in this application Figure 2 ; Figure 6 Schematic diagram of the structure of the swing assembly and the mounting assembly in the permanent magnet three-phase synchronous motor provided in this application Figure 3 ; Figure 7 A schematic diagram of the partial structure of the swing assembly and the mounting assembly in the permanent magnet three-phase synchronous motor provided in the present application; Figure 8 A schematic diagram of a portion of the structure of an auxiliary component in a permanent magnet three-phase synchronous motor provided in the present application; Fig. 9 A partial structural schematic diagram of auxiliary components in the permanent magnet three-phase synchronous motor provided in this application.

[0019] Indicated in the figure: 1. Outer shell; 2. Inner shell; 3. Rotating shaft; 4. Curved heat dissipation window; 5. Side panel; 6. Swinging assembly; 601. Disc; 602. U-shaped arc groove; 603. Arc spring plate; 604. Sliding rod; 7. Rotor disc; 8. Mounting assembly; 801. Side groove; 802. Spring; 803. Trapezoidal key pin; 804. Internal threaded hole; 805. Half frame groove; 806. Threaded rod; 807. Bearing frame; 808. Middle rod; 809. Arc baffle; 810. Extension rod; 811. Internal oblique groove; 812. Sliding block; 813. Side spring plate; 9. Auxiliary components; 901. Conical cover; 902. Annular plate; 903. Heat sink; 904. Internal thread ring; 905. Positioning bearing; 906. Limiting ring sleeve; 907. Positioning cylinder; 908. Positioning groove; 909. Auxiliary ring plate; 910. Auxiliary cone cylinder; 911. Limiting block; 912. Extension shaft; 913. Bevel ring plate; 914. Arc plate; 915. Groove; 916. Protrusion; 10. Mounting plate; 11. Bearing ring; 12. Magnet; 13. Stator winding; 14. Frame. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] As described in the background art, since the number of coils in the stator winding is fixed, a larger current is required to get rid of the load torque during the startup process, which easily causes a larger power consumption.

[0022] In order to solve this technical problem, the present invention provides a permanent magnet three-phase synchronous motor, which is applied in the technical field of motors.

[0023] Specifically, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The inner wall of the specific housing 1 of the permanent magnet three-phase synchronous motor is evenly distributed in a circumference and fixedly installed with a plurality of stator windings 13, a swing component 6 is arranged in the middle of the plurality of stator windings 13, a mounting component 8 is arranged in the middle of the swing component 6, and an auxiliary component 9 is arranged on one side of the housing 1; The swing assembly 6 includes a plurality of rotor disks 7 evenly distributed in a straight line in the middle of a plurality of stator windings 13. The surfaces of the plurality of rotor disks 7 are evenly and symmetrically provided with two U-shaped arc grooves 602. The inner walls of the U-shaped arc grooves 602 are evenly and symmetrically provided with two arc spring plates 603 fixedly connected. The inner walls of the U-shaped arc grooves 602 are evenly and symmetrically provided with two slide bars 604 movably connected. Both ends of the slide bars 604 penetrate the rotor disk 7 and are fixedly connected with a disk 601. Four magnets 12 are evenly distributed in a circumference inside the rotor disk 7. After the stator windings 13 are energized, they cooperate with the magnets 12 in the stator disks. After being energized, the magnetic poles repel the magnetic poles of the magnet 12, which drives the rotor disk 7 to rotate. The disk 601 in the rotor disk 7 moves along the U-shaped arc groove 602 with the rotational force. As the disk 601 moves to the edge of the rotor disk 7, the speed of the rotor disk 7 is increased due to its inertia, and the power output during the starting process is reduced. During the stopping process, the elastic arc plate installed on the inner wall of the U-shaped arc groove 602 squeezes the slide bar 604, so that it drives the disk 601 to gradually move away from the edge of the rotor disk 7. With the cooperation of inertia, the rotor disk 7 can also stop moving quickly.

[0024] The permanent magnet three-phase synchronous motor provided by the present invention has a U-shaped arc groove 602 on the rotor disk 7. As the rotor disk 7 rotates, the slide bar 604 arranged in the U-shaped arc groove 602 is guided to move. The slide bar 604 follows the movement driven by the disk 601, and resists the load torque under the cooperation of centrifugal force and inertia, thereby reducing the load torque of the motor during the starting process and reducing the current required to be provided during the starting process, thereby achieving energy saving.

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] Example 1, please refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig. 9A permanent magnet three-phase synchronous motor, wherein the mounting assembly 8 comprises a rotating shaft 3 movably mounted in the middle of a plurality of rotor disks 7, side grooves 801 are arranged on both sides of the rotating shaft 3, a plurality of springs 802 are fixedly connected to the inner wall of the side grooves 801 in a straight line and evenly distributed, a trapezoidal key pin 803 is fixedly connected to the end of the spring 802 away from the rotating shaft 3, two half-frame grooves 805 are symmetrically and evenly distributed in the middle of the rotor disk 7, and inner inclined grooves 811 are arranged above and below the half-frame grooves 805, and the inner The inner wall of the inclined groove 811 is movably connected with a slider 812, one end of the slider 812 is fixedly connected with an extension rod 810, and the other end of the extension rod 810 is fixedly connected with a side spring plate 813, and the side spring plate 813 is located on the inner wall of the U-shaped arc groove 602, and the two ends of the inner wall of the U-shaped arc groove 602 are symmetrically and evenly distributed and fixedly connected with arc baffles 809. When the rotor disk 7 to be installed is passed through the rotating shaft 3, the semi-frame grooves 805 in the rotor disk 7 will contact the trapezoidal key pins 803 in the rotating shaft 3 one by one until they are limited by the installed rotor disk 7, and the corresponding trapezoidal key pins 803 will enter the semi-frame grooves 805 to lock the rotor disk 7. When the rotor disk 7 is removed, the two threaded rods 806 connected to the middle rod 808 are placed between the two discs 601 and aligned with the internal threaded holes 804 in the discs 601. The bearing frame 807 therein is rotated, and the threaded rods 806 rotate, and the distance between the two discs 601 is reduced. The slide bar 604 is driven to move in the U-shaped arc groove 602. With the cooperation of the arc baffle 809, the slide bar 604 moving along the U-shaped arc groove 602 will squeeze the side spring plate 813, so that the extension rod 810 connected to it pushes the slide bar 812 to move in the inner inclined groove 811. The two slide bars 812 move relative to each other to push out the trapezoidal key pin 803 in the half-frame groove 805. At this time, the middle rod 808 is pulled to remove the rotor disk 7 to be disassembled from the rotating shaft 3.

[0029] Beneficial effect: The trapezoidal key pin 803 is brought into contact with the half-frame slot 805 in the rotor disk 7 for quick installation, and moves in coordination with the slider 812 in the inner inclined slot 811, and the trapezoidal key pin 803 in the half-frame slot 805 can be quickly removed, so that the rotor of the motor can be quickly installed and disassembled, increasing the convenience of its use process.

[0030] Further, such as Figure 4 and Fig. 9 As shown, the two disks 601 have internal threaded holes 804 at opposite ends, and the inner wall of the internal threaded hole 804 is movably connected with a threaded rod 806. A bearing frame 807 is provided at the end of the threaded rod 806 away from the disk 601. A middle rod 808 is fixedly connected between the two bearing frames 807 on the same axis. The threaded rod 806 is connected to the internal threaded hole 804 in the disk 601, so that the rotor disk 7 can be moved by the middle rod 808.

[0031] Embodiment 2 further optimizes the permanent magnet three-phase synchronous motor provided in Embodiment 1. Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig. 9 As shown, the auxiliary component 9 includes an inner shell 2 movably mounted on the outer wall of the outer shell 1, and the outer wall of the outer shell 1 is evenly distributed and fixedly connected with a plurality of heat sinks 903 in a circumferential manner, and the plurality of heat sinks 903 are movably connected to the inner shell 2, and an annular plate 902 is fixedly connected to the middle of the plurality of heat sinks 903, and a positioning cylinder 907 is fixedly connected to the upper side of the annular plate 902, and a threaded rod 806 is sleeved on the inner wall of the positioning cylinder 907, and one of the threaded rods 806 is provided with a protrusion 916 at one end away from the bearing frame 807, and the other threaded rod ... A groove 915 is provided at one end of the threaded rod 806 away from the bearing frame 807 to lock the positioning bearing 905. By rotating the rotating shaft 3, with the cooperation of the internal threaded ring 904, the inner shell 2 will be pushed gradually toward the outer shell 1, and the heat sink 903 connected to the outer wall of the outer shell 1 will also be gradually exposed. At this time, the rod body structure removed from the two disks 601 is placed in the auxiliary cylinder to limit the extension length of the outer shell 1 and the inner shell 2. Multiple rod body structures can be spliced ​​by the protrusions 916 and grooves 915 at the ends of the two threaded rods 806.

[0032] Beneficial effect: By rotating the shaft 3, with the cooperation of the internal threaded rod 806, the inner shell 2 is pushed to move, so as to expand the space inside the motor. While expanding the space, the area of ​​the heat sink 903 exposed on the outer wall of the outer shell 1 becomes larger, so that the space inside the motor can be expanded in accordance with the number of rotors and its heat dissipation area can be increased.

[0033] Further, such as Figure 3 As shown, a positioning bearing 905 is provided in the middle of one side of the outer shell 1, and the inner ring of the positioning bearing 905 is fixedly connected to an internal threaded ring 904, the inner wall of the internal threaded ring 904 is movably connected to the outer wall of the rotating shaft 3, and the rotating shaft 3 passes through the internal threaded ring 904, and the internal threaded ring 904 cooperates with the rotating shaft 3. Rotating the rotating shaft 3 can drive the inner shell 2 to move in the outer shell 1.

[0034] Further, such as Figure 4 and Figure 8 As shown, the other end of the rotating shaft 3 is provided with a plurality of positioning grooves 908 evenly distributed in a circle, the inner wall of the positioning groove 908 is movably connected to a limiting block 911, the other end of the plurality of limiting blocks 911 is fixedly connected to an auxiliary cone cylinder 910, and the end of the auxiliary cone cylinder 910 away from the rotating shaft 3 is fixedly connected to an extension shaft 912, and the limiting grooves in the rotating shaft 3 are connected to the limiting blocks 911 in the auxiliary cylinder, so that the rotating shaft 3 can provide power for the rotation of the extension shaft 912.

[0035] Further, such as Figure 3 Figure 8As shown, the auxiliary cone 910 is fixedly connected to the end away from the extension shaft 912 with an auxiliary ring plate 909, the outer wall of the auxiliary ring plate 909 is movably connected to a limiting ring sleeve 906, the limiting ring sleeve 906 is fixedly installed with a conical cover 901, the conical cover 901 is fixedly installed on the inner wall of the inner shell 2, the inner shell 2 is fixedly connected to a bearing ring 11 in the middle of the side away from the outer shell 1, the bearing ring 11 is movably connected to the extension shaft 912, and the auxiliary ring plate 909 connected to the conical cover 901 is positioned by the limiting ring sleeve 906 to prevent the extension shaft 912 from being disconnected from the rotating shaft 3.

[0036] Further, such as Figure 3 and Figure 8 As shown, the outer wall of the extension shaft 912 is fixedly connected to a beveled ring plate 913, and the side of the beveled ring plate 913 is fixedly connected to a plurality of arc plates 914 evenly distributed in a circle. The rotating extension shaft 912 will drive the beveled ring plate 913 to rotate, and then the plurality of arc plates 914 will rotate, generating airflow and reducing the heat on the surface of the heat sink 903 during operation.

[0037] Further, such as Figure 1 and Figure 3 As shown, a plurality of arc-shaped heat dissipation windows 4 are evenly distributed in a circle on one side of the inner shell 2 away from the outer shell 1 , and a frame 14 is provided at the edge of the arc-shaped heat dissipation window 4 , through which the air entering the inner shell 2 is filtered.

[0038] Further, such as Figure 1 As shown, two side panels 5 are symmetrically and evenly distributed and fixedly connected to the lower part of the outer wall of the housing 1, and a mounting plate 10 is fixedly connected to the lower part of the side panels 5. By cooperating with the side panels 5 and the mounting plate 10, the overall structure can be installed at a desired position.

[0039] The use process of the permanent magnet three-phase synchronous motor provided by the present invention is as follows: Working principle: During use, the staff can use the mounting plate 10 to position and install it on the required position; Rotor installation: The staff will pick up the rotor disk 7 to be installed and pass it through the shaft 3. The semi-frame grooves 805 in the rotor disk 7 will contact the trapezoidal key pins 803 in the shaft 3 one by one until they are limited by the installed rotor disk 7, and the corresponding trapezoidal key pins 803 will enter the semi-frame grooves 805 to lock the rotor disk 7. When removing the rotor disk 7, the two threaded rods 806 connected to the middle rod 808 are placed between the two discs 601 and aligned with the internal threaded holes 804 in the discs 601. The bearing frame 80 is rotated. 7. The threaded rod 806 rotates, and the distance between the two discs 601 is reduced, driving the slide bar 604 to move in the U-shaped arc groove 602. With the cooperation of the arc baffle 809, the slide bar 604 moving along the U-shaped arc groove 602 will squeeze the side spring plate 813, so that the extension rod 810 connected to it pushes the slide block 812 to move in the inner inclined groove 811. The two slide blocks 812 move relative to each other, pushing out the trapezoidal key pin 803 in the half frame groove 805. At this time, the middle rod 808 is pulled to remove the rotor disc 7 to be disassembled from the rotating shaft 3; Shell adjustment: After completing the installation of the rotor structure, the staff will lock the positioning bearing 905 in the outer shell 1 and rotate the shaft 3. With the cooperation of the internal threaded ring 904, the inner shell 2 will be pushed gradually toward the outer shell 1, and the heat sink 903 connected to the outer wall of the outer shell 1 will also be gradually exposed. At this time, the rod structure removed from the two discs 601 is placed in the auxiliary cylinder to limit the extension length of the outer shell 1 and the inner shell 2. Multiple rod structures can be spliced ​​by the protrusions 916 and the grooves 915 at the ends of the two threaded rods 806, so as to change the space of the shell to adapt to its rotor structure. After the adjustment is completed, the rotor structure is installed in the shell; Rotation assistance: After the stator winding 13 distributed on the inner wall of the housing 1 is energized, it cooperates with the magnet 12 in the stator disk. Since the magnetic poles after being energized repel the magnetic poles of the magnet 12, the rotor disk 7 is driven to rotate, and the disk 601 in the rotor disk 7 moves along the U-shaped arc groove 602 with the rotational force. As the disk 601 moves to the edge of the rotor disk 7, the speed of the rotor disk 7 is increased due to its inertia, and the power output during the starting process is reduced. During the stopping process, the elastic arc plate installed on the inner wall of the U-shaped arc groove 602 squeezes the slide bar 604, so that it drives the disk 601 to gradually move away from the edge of the rotor disk 7. With the cooperation of inertia, the rotor disk 7 can also stop moving quickly.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A permanent magnet three-phase synchronous motor, characterized in that: It comprises a shell (1), a plurality of stator windings (13) are fixedly mounted on the inner wall of the shell (1) in a circumferentially evenly distributed manner, a swing assembly (6) is provided between the plurality of stator windings (13), a mounting assembly (8) is provided in the middle of the swing assembly (6), and an auxiliary assembly (9) is provided on one side of the shell (1); The swing assembly (6) comprises a plurality of rotor disks (7) evenly distributed in a straight line in the middle of a plurality of stator windings (13); the surfaces of the plurality of rotor disks (7) are evenly and symmetrically provided with two U-shaped arc grooves (602); the inner walls of the U-shaped arc grooves (602) are evenly and symmetrically provided with two arc spring plates (603) fixedly connected; the inner walls of the U-shaped arc grooves (602) are evenly and symmetrically provided with two sliding rods (604) movably connected; both ends of the sliding rods (604) penetrate the rotor disk (7) and are fixedly connected with a disk (601); and four magnets (12) are evenly and circumferentially provided inside the rotor disk (7).

2. A permanent magnet three-phase synchronous motor according to claim 1, characterized in that: The mounting assembly (8) comprises a rotating shaft (3) movably mounted in the middle of a plurality of rotor disks (7), side grooves (801) are provided on both sides of the rotating shaft (3), a plurality of springs (802) are fixedly connected to the inner wall of the side groove (801) in a straight line and evenly distributed, a trapezoidal key pin (803) is fixedly connected to one end of the spring (802) away from the rotating shaft (3), two half-frame grooves (805) are symmetrically and evenly distributed in the middle of the rotor disk (7), and the half-frame grooves (80 5) An inner inclined groove (811) is provided at the top and the bottom, and a slider (812) is movably connected to the inner wall of the inner inclined groove (811), one end of the slider (812) is fixedly connected to an extension rod (810), and the other end of the extension rod (810) is fixedly connected to a side spring plate (813), and the side spring plate (813) is located on the inner wall of the U-shaped arc groove (602), and arc baffles (809) are fixedly connected to the inner wall of the U-shaped arc groove (602) in a symmetrical and evenly distributed manner at both ends.

3. A permanent magnet three-phase synchronous motor according to claim 2, characterized in that: Internal threaded holes (804) are provided at opposite ends of the two disks (601); a threaded rod (806) is movably connected to the inner wall of the internal threaded hole (804); a bearing frame (807) is provided at one end of the threaded rod (806) away from the disk (601); and a middle rod (808) is fixedly connected between the two bearing frames (807) on the same axis.

4. A permanent magnet three-phase synchronous motor according to claim 1, characterized in that: The auxiliary component (9) comprises an inner shell (2) movably mounted on the outer wall of the outer shell (1); the outer wall of the outer shell (1) is evenly distributed circumferentially and fixedly connected with a plurality of heat sinks (903); the plurality of heat sinks (903) are movably connected to the inner shell (2); an annular plate (902) is fixedly connected to the middle of the plurality of heat sinks (903); a positioning cylinder (907) is fixedly connected to the upper side of the annular plate (902); a threaded rod (806) is sleeved on the inner wall of the positioning cylinder (907); a protrusion (916) is provided at one end of the threaded rod (806) away from the bearing frame (807); and a groove (915) is provided at another end of the threaded rod (806) away from the bearing frame (807).

5. A permanent magnet three-phase synchronous motor according to claim 2, characterized in that: A positioning bearing (905) is provided in the middle of one side of the housing (1); the inner ring of the positioning bearing (905) is fixedly connected to an internal threaded ring (904); the inner wall of the internal threaded ring (904) is movably connected to the outer wall of the rotating shaft (3); and the rotating shaft (3) passes through the internal threaded ring (904).

6. A permanent magnet three-phase synchronous motor according to claim 2, characterized in that: The other end of the rotating shaft (3) is provided with a plurality of positioning grooves (908) evenly distributed in a circumference, the inner wall of the positioning groove (908) is movably connected to a limit block (911), the other ends of the plurality of limit blocks (911) are fixedly connected to an auxiliary cone cylinder (910), and the end of the auxiliary cone cylinder (910) away from the rotating shaft (3) is fixedly connected to an extension shaft (912).

7. A permanent magnet three-phase synchronous motor according to claim 6, characterized in that: An auxiliary ring plate (909) is fixedly connected to one end of the auxiliary cone (910) away from the extension shaft (912); the outer wall of the auxiliary ring plate (909) is movably connected to a limiting ring sleeve (906); a conical cover (901) is fixedly installed on the limiting ring sleeve (906); the conical cover (901) is fixedly installed on the inner wall of the inner shell (2); a bearing ring (11) is fixedly connected to the middle part of a side of the inner shell (2) away from the outer shell (1); and the bearing ring (11) is movably connected to the extension shaft (912).

8. A permanent magnet three-phase synchronous motor according to claim 6, characterized in that: The outer wall of the extension shaft (912) is fixedly connected to a beveled edge ring plate (913), and the side surface of the beveled edge ring plate (913) is fixedly connected to a plurality of circular arc plates (914) evenly distributed in a circumference.

9. A permanent magnet three-phase synchronous motor according to claim 4, characterized in that: A plurality of arc-shaped heat dissipation windows (4) are evenly distributed in a circumference on a side of the inner shell (2) away from the outer shell (1), and a frame (14) is provided at the edge of the arc-shaped heat dissipation window (4).

10. A permanent magnet three-phase synchronous motor according to claim 1, characterized in that: Two side panels (5) are symmetrically and evenly distributed and fixedly connected to the lower part of the outer wall of the housing (1), and a mounting plate (10) is fixedly connected to the lower part of the side panels (5).

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