Self-starting synchronous reluctance machine with high starting torque

Abstract

The application discloses a self-starting synchronous reluctance motor with high starting torque, which comprises a shell and a stator and a rotor arranged in the shell; the rotor comprises a rotor iron core, cast aluminum bars and a rotating shaft; the rotor iron core is formed by axially stacking core punching sheets with multiple levels and multiple magnetic barriers; in the application, the centrifugal force of the rotating shaft drives the flow guide assembly to move; the flow guide assembly guides air into the air groove; the rotor iron core is filled with flowing gas in the air groove; the flowing gas cooperates with the first magnetic barrier, the first magnetic barrier groove, the second magnetic barrier groove, the third magnetic barrier groove and the fourth magnetic barrier groove of the cast aluminum to form a non-uniform starting cage; the segmented processing of the magnetic barriers makes the magnetic barrier grooves of the cast aluminum independent, reduces the process requirement, improves the material utilization, reduces the loss and improves the motor efficiency; meanwhile, the structure reduces the slot leakage reactance of the motor, improves the power factor of the motor, increases the starting torque of the motor by increasing the surface of the cast aluminum bars and meets the load starting requirement of the motor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a self-starting synchronous reluctance motor with high starting torque. BACKGROUND

[0002] Synchronous reluctance motor has higher efficiency than asynchronous motor of the same capacity because of no rotor copper loss, and has lower cost than permanent magnet motor, so it is one of the important structural forms in the development of super high efficiency motor; but the traditional synchronous reluctance motor does not have self-starting capability and needs to be powered by a frequency converter.

[0003] For example, the patent with publication number CN103501094A and the name of "self-starting permanent magnet synchronous motor" includes a rotor core and a stator core, the stator core is provided with a winding, the winding is divided into a main winding and an auxiliary winding, the inner periphery of the stator core is provided with at least two pairs of tooth and slot structures, the tooth structure and the slot structure are staggered; so that the self-starting permanent magnet synchronous motor has unequal air gaps, so that the magnetic resistance between the stator and the rotor changes greatly, according to the principle of minimum magnetic resistance, the rotor core always remains at the position of minimum magnetic resistance, therefore, the rotor core will rotate with the rotation of the stator magnetic field, thereby starting the self-starting permanent magnet synchronous motor; the structure of the permanent magnet synchronous motor using uneven air gap for self-starting is simple and easy to process, but the starting torque is not high, and it is difficult to meet the original driving requirements of asynchronous motor, such as flywheel torque, uneven impact load, and many times of forward and reverse rotation;

[0004] The existing technology has the problem that it is difficult to balance high power density and high starting torque because the existing starting torque mainly comes from the asynchronous torque generated by the rotor squirrel cage, and the key to improving the starting torque lies in enhancing the torque generation capacity of the rotor squirrel cage during starting, but the squirrel cage strip has eddy current loss during the stable operation of the asynchronous motor in the prior art, and the squirrel cage strip is heated and broken, resulting in the technical problem that it is difficult to balance high power density and high starting torque. SUMMARY

[0005] The purpose of the present application is to provide a self-starting synchronous reluctance motor with high starting torque, which drives the flow guide assembly to move through the centrifugal force of the rotating shaft, so that the flow guide assembly guides air into the air slot, so that the rotor core air slot is filled with flowing gas cooperating with the first magnetic barrier, magnetic barrier slot one, magnetic barrier slot two, magnetic barrier slot three, and magnetic barrier slot four to form an uneven starting cage, and the segmented processing of each layer of magnetic barrier makes the magnetic barrier slot of cast aluminum independent, compared with the local cast aluminum method in the whole complete magnetic barrier, which reduces the process requirement, improves the material utilization rate, reduces the loss, improves the motor efficiency, and at the same time, the structure reduces the slot leakage reactance of the motor, improves the power factor of the motor, and increases the starting torque of the motor by increasing the cast aluminum bar surface, which meets the load starting requirements of the motor.

[0006] In order to achieve the above object, the application adopts the following technical scheme: a self-starting synchronous reluctance motor with high starting torque, comprising a casing and a stator and a rotor arranged in the casing; the rotor comprises a rotor core, cast aluminum bars and a rotating shaft, the rotor core is made of multiple levels and multiple layers of core laminations with magnetic barriers, a first magnetic barrier is arranged near the air gap, and magnetic barrier grooves are sequentially arranged from the first magnetic barrier to the rotating shaft center, the magnetic barrier grooves are divided into several sections, and the structure size of the slot opening near the air gap of the adjacent two layers of magnetic barrier grooves is greatly different; the cast aluminum bars are arranged in the specific slot openings at the edges of each layer of magnetic barrier grooves, and the uneven starting cage is formed by short-circuiting at the end of the motor to realize self-starting of the motor; the rotating shaft is provided with a fastening frame limiting the rotor core at both ends, a plurality of flow guide assemblies are fixedly connected to the fastening frame, and the flow guide assemblies are drivingly connected with linkage assemblies, the orientation of the flow guide plates in the flow guide assemblies is opposite to the rotating direction of the rotating shaft under the driving of the linkage assemblies, the flow guide assemblies adaptively guide the gas into the magnetic barrier grooves opened in the rotor core according to the rotating direction of the rotating shaft to enhance the starting torque.

[0007] Further description of the above technical scheme:

[0008] The cast aluminum bars are cast in the specific slot openings near the air gap to form the uneven starting cage, and are separated by the magnetic separation bridges fixed in the slot openings, and each layer is left empty by the magnetic separation bridges.

[0009] Further description of the above technical scheme:

[0010] The stator comprises a stator core and a stator winding, the stator winding is a three-phase integer slot distributed winding, and the stator core is separated from the rotor by an air gap.

[0011] Further description of the above technical scheme:

[0012] The magnetic barrier is a C-shaped structure, and the magnetic barrier has five layers, the slot opening size near the air gap of the second layer and the fourth layer of the magnetic barrier is similar, and the slot opening size near the air gap of the third layer and the fifth layer of the magnetic barrier is similar.

[0013] Further description of the above technical scheme:

[0014] The fastening frame comprises a gasket ring, and the gasket ring is arranged on the rotating shaft and fixedly connected with the rotor core by fastening bolts.

[0015] Further description of the above technical scheme:

[0016] The gasket ring is fixedly connected with a support seat, the support seat is symmetrically provided with flow guide plates at both ends, one end of the flow guide plate is drivingly provided with a linkage frame, and the angle of the flow guide plate is switched by the linkage frame to adapt to the gas flow in the empty slot opening of the rotor core.

[0017] As a further description of the above technical solutions:

[0018] The linkage frame is drivingly connected with an arc-shaped rack, and the arc-shaped rack is slidingly arranged on the support base. One end of the arc-shaped rack is engaged with a gear shaft, and the end of the gear shaft away from the arc-shaped rack is engaged with the linkage assembly.

[0019] As a further description of the above technical solutions:

[0020] The linkage assembly comprises a guide rail ring, a counterweight strip is fixedly connected to the outer ring of the guide rail ring, a tooth groove is formed in the inner side of the guide rail ring, and the tooth groove is engaged with the gear shaft. A bottom plate is arranged at the bottom end of the gear shaft, one end of the bottom plate is fixedly connected with a limiting sleeve, and the guide rail ring is slidingly connected in the limiting sleeve.

[0021] As a further description of the above technical solutions:

[0022] The support base is fixedly connected with a limiting strip at both ends, a sliding rail groove is formed in the limiting strip, and limiting pads are symmetrically arranged at both ends of the sliding rail groove and fixedly connected to the limiting strip.

[0023] As a further description of the above technical solutions:

[0024] The linkage frame comprises a linkage strip, a cross arm is fixedly connected to the top end of the linkage strip, a push rod is fixedly connected to one end of the cross arm, a limiting frame is arranged at one end of the linkage strip, a limiting column is arranged in the limiting frame, and the limiting column is fixedly connected to the arc-shaped rack.

[0025] The application provides a self-starting synchronous reluctance motor with high starting torque, which has the following beneficial effects:

[0026] In the application, the centrifugal force of the rotating shaft drives the guide component to move, so that the guide component guides air into the air groove, the air groove of the rotor core is filled with flowing gas, and the first magnetic barrier, the magnetic barrier groove I, the magnetic barrier groove II, the magnetic barrier groove III and the magnetic barrier groove IV made of cast aluminum form a non-uniform starting cage. The segmented processing of the magnetic barriers makes the magnetic barrier grooves made of cast aluminum independent, compared with the local cast aluminum method in the whole complete magnetic barrier, the process requirement is reduced, the material utilization rate is improved, the loss is reduced, the motor efficiency is improved, the motor slot leakage resistance is reduced, the motor power factor is improved, the starting torque of the motor is improved by increasing the cast aluminum bar surface, and the load starting requirement of the motor is met. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural schematic diagram of a self-starting synchronous reluctance motor with high starting torque is provided in the application;

[0028] Figure 2 A structural schematic diagram of a stator core in the application;

[0029] Figure 3 Fig. 1 is a structural schematic diagram of a rotor core in the present application;

[0030] Figure 4 Fig. 2 is a structural schematic diagram of a magnetic isolation bridge in the present application;

[0031] Figure 5 Fig. 3 is a structural schematic diagram of a limiting slot in the present application;

[0032] Figure 6 Fig. 4 is a structural schematic diagram of a fastening frame in the present application;

[0033] Figure 7 Fig. 5 is a structural schematic diagram of a flow guide plate in the present application;

[0034] Figure 8 Fig. 6 is a structural schematic diagram of an arc-shaped rack in the present application;

[0035] Figure 9 Fig. 7 is a structural schematic diagram of a linkage frame in the present application;

[0036] Figure 10 Fig. 8 is a structural schematic diagram of a support seat in the present application;

[0037] Figure 11 Fig. 9 is a structural schematic diagram of a bottom plate in the present application.

[0038] Fig. 1 is a structural schematic diagram of a rotor core in the present application; DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0040] Reference Signs List Figures 1-11The application discloses a self-starting synchronous reluctance motor with high starting torque, which comprises a shell 1 and a stator and a rotor arranged in the shell 1; the rotor comprises a rotor core 3, cast aluminum bars 31 and a rotating shaft 4; the rotor core 3 is formed by axially stacking core laminations with multiple levels and multiple magnetic barriers; a first magnetic barrier 32 is arranged on the side close to the air gap, and magnetic barrier grooves are sequentially arranged towards the axis of the rotating shaft 4 through the first magnetic barrier 32; the magnetic barrier grooves are divided into several sections, and the structure size of the slot opening on the side close to the air gap of the adjacent two layers of magnetic barrier grooves is greatly different; the cast aluminum bars 31 are arranged in the specific slot opening at the edge of each layer of magnetic barrier grooves, and the uneven starting cage is formed by short-circuiting the end part of the motor to realize self-starting of the motor; the rotating shaft 4 is provided with a fastening frame 5 for limiting the rotor core 3 at both ends; a plurality of flow guide assemblies 6 are fixedly connected to the fastening frame 5; the flow guide assemblies 6 are drivingly connected with linkage assemblies 7; the orientation of the flow guide plates 63 in the flow guide assemblies 6 is opposite to the rotating direction of the rotating shaft 4 through the rotation of the rotating shaft 4, so that the flow guide assemblies 6 can guide the gas into the magnetic barrier grooves in the rotor core 3 to enhance the starting torque; the cast aluminum bars 31 are filled with cast aluminum in the first magnetic barrier 32, and the cast aluminum bars 31 are only cast with aluminum in the specific slot opening on the side close to the air gap in the remaining layers to form the uneven starting cage; the magnetic barrier grooves are separated by the magnetic separation bridges 37 fixedly connected to the slot opening; each layer is separated by the magnetic separation bridges 37 to leave some slot openings; the stator comprises a stator core 2 and a stator winding 21; the stator winding 21 is a three-phase integral-slot distributed winding; the stator core 2 is separated from the rotor through the air gap; the magnetic barrier has a C-shaped structure, and the magnetic barrier has five layers except the first magnetic barrier 32; the slot opening size on the side close to the air gap of the second layer and the fourth layer of magnetic barriers is similar; the slot opening size on the side close to the air gap of the third layer and the fifth layer of magnetic barriers is similar.

[0041] Specific, the shell 1 installed in the stator and rotor, wherein the stator is composed of stator core 2 and stator winding 21, rotor is composed of rotor core 3, cast aluminum bar 31 and rotating shaft 4, rotor core 3 is transverse to the rotating shaft 4 multiple core lamination, each rotor core 3 on the opening of the multi-layer magnetic barrier, magnetic barrier is C type structure and by 5 groups of magnetic barrier in turn distributed on the rotor core 3, rotor every two levels between d axis, ahead of d axis 90 degrees electric angle for q axis; located in the magnetic barrier by magnetic bridge 37 is divided into two parts, close to the gap measuring the end of the slot is: the first magnetic barrier 32, magnetic barrier slot one 33, magnetic barrier slot two 34, magnetic barrier slot three 35, magnetic barrier slot four 36; and the size of magnetic barrier slot one 33 and magnetic barrier slot three 35 is similar, magnetic barrier slot two 34 and magnetic barrier slot four 36 structure is similar, and the first magnetic barrier 32, magnetic barrier slot one 33, magnetic barrier slot two 34, magnetic barrier slot three 35, magnetic barrier slot four 36 in cast full of aluminum, the first magnetic barrier 32, magnetic barrier slot one 33, magnetic barrier slot two 34, magnetic barrier slot three 35, magnetic barrier slot four 36 form uneven starting cage, then the other part of the separation is air slot, located in the air slot end is provided with flow guide assembly 6, flow guide assembly 6 is fixedly installed through the fastening frame 5 fixed on the rotating shaft 4, the transmission connection of flow guide assembly 6 in the rotating process of rotating shaft 4, the transmission of flow guide assembly 6 movement through the centrifugal force of rotating shaft 4, so that the flow guide assembly 6 will air into the air slot, so that the rotor core 3 air slot full of flowing gas with cast aluminum first magnetic barrier 32, magnetic barrier slot one 33, magnetic barrier slot two 34, magnetic barrier slot three 35, magnetic barrier slot four 36 form uneven starting cage, through the segmentation of each layer of magnetic barrier makes the magnetic barrier slot of cast aluminum independent, compared with the local cast aluminum way in the whole complete magnetic barrier, reduce the process requirement, improve the material utilization, reduce the loss, improve the motor efficiency, at the same time, the structure reduces the motor slot leakage resistance, improves the motor power factor, and through the increase of cast aluminum bar 31 surface improves the starting torque of motor, meets the load starting requirement of motor.

[0042] The fastening frame 5 comprises a gasket ring 51, which is arranged on the rotating shaft 4 and is fixed to the rotor core 3 by a fastening bolt 52; a support seat 61 is fixed to the circumferential surface of the gasket ring 51, and flow guide plates 63 are symmetrically arranged at both ends of the support seat 61; one end of each flow guide plate 63 is drivingly connected to a linkage frame 62, and the linkage frame 62 drives the flow guide plates 63 to switch the angle to adapt to the gas flow in the empty slot of the rotor core 3; the linkage frame 62 is drivingly connected to an arc-shaped rack 64, which is slidingly arranged on the support seat 61; one end of the arc-shaped rack 64 is engaged with a gear shaft 67, and the other end of the gear shaft 67 is engaged with a linkage assembly 7; the linkage assembly 7 comprises a guide rail ring 71, a counterweight strip 72 is fixed to the outer ring of the guide rail ring 71, a tooth groove 73 is formed in the inner side of the guide rail ring 71, and the tooth groove 73 is engaged with the gear shaft 67; a bottom plate 65 is arranged at the bottom end of the gear shaft 67, a limiting sleeve 66 is fixed to one end of the bottom plate 65, and the guide rail ring 71 is slidingly connected in the limiting sleeve 66; a limiting strip 611 is fixed to both ends of the support seat 61, a sliding rail groove 612 is formed in the limiting strip 611, limiting pads 613 are symmetrically arranged at both ends of the sliding rail groove 612, and the limiting pads 613 are fixed to the limiting strip 611; the linkage frame 62 comprises a linkage strip 621, a cross arm 622 is fixed to the top end of the linkage strip 621, a push rod 623 is fixed to one end of the cross arm 622, a limiting frame 624 is arranged at one end of the linkage strip 621, a limiting column 641 is arranged in the limiting frame 624, and the limiting column 641 is fixed to the arc-shaped rack 64;

[0043] Specifically, the gasket ring 51 in the fastening frame 5 is matched with the limiting groove 311 in the inner side of the rotor core 3 through the fastening bolt 52 arranged on the peripheral surface, so that the rotor core 3 with the punching structure is fastened on the rotating shaft 4, the gasket ring 51 is fixedly connected with the support seat 61 in the flow guide assembly 6, the limiting strips 611 fixedly connected at both ends of the support seat 61 are used for limiting the movement direction of the linkage frame 62, wherein the sliding rod 625 is movably arranged in the sliding rail groove 612 in the limiting strip 611, the linkage strip 621 is fixedly connected with the sliding rod 625, when the linkage strip 621 fixedly connected with the sliding rod 625 moves directionally in the sliding rail groove 612, the cross arm 622 fixedly connected with the linkage strip 621 and the push rod 623 fixedly connected with the cross arm 622 move directionally along the sliding rail groove 612, wherein the push rod 623 is matched with the movable groove 631 in the flow guide plate 63, and the support shaft 632 movably connected with the bottom end of the flow guide plate 63 is fixedly connected with the limiting strip 611; when the push rod 623 moves directionally along the sliding rail groove 612, the push rod 623 drives the flow guide plate 63 to rotate around the axis of the support shaft 632, so that the flow guide plate 63 can adjust the angle thereof, the rotating direction of the rotating shaft 4 is adapted to adjust the angle of the flow guide plate 63, air is conveniently introduced into the air groove, the limiting column 641 fixedly connected with the arc-shaped rack 64 is limited in the limiting frame 624 arranged at one end of the linkage strip 621, the sliding rail frame 614 is slidably connected with one end of the arc-shaped rack 64 away from the gear shaft 67, the sliding rail frame 614 is fixedly connected with the limiting strip 611, the guide rail ring 71 in the linkage assembly 7 is limited on the bottom plate 65 through the limiting sleeve 66 movably connected, the bottom plate 65 is fixedly connected with the gasket ring 51, when the rotating shaft 4 rotates, the counterweight strip 72 fixedly connected with the outer wall of the guide rail ring 71 drives the guide rail ring 71 to move in the opposite direction of the rotating shaft 4 under the action of the centrifugal force, the tooth groove 73 arranged in the inner wall of the guide rail ring 71 is engaged with the gear shaft 67, so that the arc-shaped rack 64 engaged with the gear shaft 67 moves in the opposite direction of the guide rail ring 71, then the movement direction of the arc-shaped rack 64 is the same as that of the rotating shaft 4, then the limiting column 641 fixedly connected with the top end of the arc-shaped rack 64 drives the linkage strip 621 to move directionally in the sliding rail groove 612 arranged in the limiting strip 611, so that the flow guide plate 63 automatically adjusts the inclination angle under the driving of the push rod 623, so that the gas is continuously introduced into the air groove of the rotor core 3, and the torque of the motor automatic starting is improved.

[0044] Working principle: the stator and rotor in the casing 1 are composed of: the stator is composed of stator core 2 and stator winding 21, the rotor is composed of rotor core 3, cast aluminum bar 31 and rotating shaft 4; Rotor core 3 is made of multiple core punching pieces transversely stacked on rotating shaft 4, multiple layers of magnetic barriers are provided on single rotor core 3, the magnetic barrier is C-shaped structure and is distributed on the rotor core 3 in five layers, the magnetic barrier is divided into two parts by the magnetic barrier 37, the slots near the gap measuring one end are: first magnetic barrier 32, magnetic barrier slot one 33, magnetic barrier slot two 34, magnetic barrier slot three 35, magnetic barrier slot four 36; And the size of magnetic barrier slot one 33 and magnetic barrier slot three 35 is similar, the structure of magnetic barrier slot two 34 and magnetic barrier slot four 36 is similar, and the first magnetic barrier 32, the magnetic barrier slot one 33, the magnetic barrier slot two 34, the magnetic barrier slot three 35, the magnetic barrier slot four 36 are filled with aluminum, the first magnetic barrier 32, the magnetic barrier slot one 33, the magnetic barrier slot two 34, the magnetic barrier slot three 35, the magnetic barrier slot four 36 form uneven starting cage, the other part is air slot, the air slot one end is provided with the guide assembly 6 for guiding gas, the guide assembly 6 moves by the centrifugal force of the rotating shaft 4 to drive the linkage assembly to move, so that the guide plate 63 of the guide assembly 6 driven by the linkage assembly 7 is angularly self-adapting to the rotating direction of the rotating shaft 4, when the rotating shaft 4 rotates, the counterweight strip 72 fixed on the outer wall of the guide rail ring 71 is driven by the centrifugal force to move in the opposite direction of the rotating shaft 4, the tooth groove 73 opened in the inner wall of the guide rail ring 71 is engaged with the gear shaft 67, so that the arc-shaped rack 64 engaged with the gear shaft 67 moves in the opposite direction of the guide rail ring 71, then the arc-shaped rack 64 moves in the same direction of the rotating shaft 4 along the sliding rail frame 614, then the limiting column 641 at the top of the arc-shaped rack 64 drives the linkage strip 621 to move directionally in the sliding rail groove 612 opened in the limiting strip 611, when the lever 623 moves directionally along the sliding rail groove 612, the lever 623 drives the guide plate 63 to rotate around the shaft 632, so that the guide plate 63 can adjust its angle, which is used for self-adapting to adjust the angle of the guide plate 63 in the rotating direction of the rotating shaft 4, so as to facilitate the air to be introduced into the air slot, the guide rail ring 71 in the linkage assembly 7 is limited on the bottom plate 65 by the movable connection of the limiting sleeve 66, so that the guide plate 63 is automatically adjusted in the inclination angle under the driving of the lever 623, the gas continuously flows into the air slot when the rotating shaft moves, and the torque of the self-starting motor is improved.

[0045] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A self-starting synchronous reluctance machine with high starting torque, characterized in that, The machine shell (1) is provided with a stator and a rotor inside the machine shell (1); The rotor comprises a rotor core (3), a cast aluminum bar (31) and a rotating shaft (4), the rotor core (3) is made of core punching sheets of multiple stages and multiple layers of magnetic barriers which are axially laminated, a first magnetic barrier (32) is arranged near the air gap side of the rotor core (3), and magnetic barrier grooves are sequentially arranged towards the rotating shaft (4) through the first magnetic barrier (32), the magnetic barrier grooves are divided into several sections, and the structure size of the slot opening near the air gap side of the adjacent two layers of magnetic barrier grooves has a large difference; the cast aluminum bar (31) is arranged in the specific slot opening at the edge of each layer of magnetic barrier grooves, and the uneven starting cage is formed by short-circuiting at the end of the motor to realize self-starting of the motor; the cast aluminum bar (31) is cast in the specific slot opening near the air gap side of each layer except the first magnetic barrier (32) to form the uneven starting cage, which is separated by the magnetic separation bridge (37) fixed in the slot opening, and each layer is separated by the magnetic separation bridge (37) to leave some slot openings; The rotating shaft (4) is provided with a fastening frame (5) limiting the rotor core (3) at both ends, a plurality of flow guide assemblies (6) are fixed on the fastening frame (5), the flow guide assemblies (6) are drivingly connected with linkage assemblies (7), the direction of the flow guide plates (63) in the flow guide assemblies (6) is opposite to the rotating direction of the rotating shaft (4) through the rotation of the rotating shaft (4) to drive the linkage assemblies (7) to drive the flow guide plates (63) in the flow guide assemblies (6), so that the flow guide assemblies (6) can adapt to the rotating direction of the rotating shaft (4) to guide the gas into the magnetic barrier grooves in the rotor core (3) to enhance the starting torque. The fastening frame (5) includes a gasket ring (51), which is mounted on the rotating shaft (4) and fixed to the rotor core (3) via fastening bolts (52). A support seat (61) is fixed to the circumference of the gasket ring (51), and guide plates (63) are symmetrically provided at both ends of the support seat (61). A linkage frame (62) is driven at one end of the guide plate (63), which drives the guide plate (63) to switch angles to accommodate the gas flow in the empty slot of the rotor core (3). The linkage frame (62) is driven to connect an arc. A toothed rack (64) is provided, and the arc-shaped rack (64) is slidably disposed on a support base (61). One end of the arc-shaped rack (64) is engaged with a gear shaft (67), and the end of the gear shaft (67) away from the arc-shaped rack (64) is engaged with a linkage assembly (7). The linkage assembly (7) includes a guide ring (71), and a counterweight bar (72) is fixedly connected to the outer ring of the guide ring (71). A toothed groove (73) is provided on the inner side of the guide ring (71), and the toothed groove (73) is engaged with the gear shaft (67). A base plate (6) is provided at the bottom end of the gear shaft (67). 5) One end of the base plate (65) is fixedly connected to a limiting sleeve (66), and a guide rail ring (71) is slidably connected inside the limiting sleeve (66); both ends of the support base (61) are fixedly connected to limiting strips (611), and a slide rail groove (612) is opened inside the limiting strip (611). The two ends of the slide rail groove (612) are symmetrically provided with limiting pads (613), and the limiting pads (613) are fixedly connected to the limiting strips (611); both ends of the support base (61) are fixedly connected to limiting strips (611), and a slide rail groove (612) is opened inside the limiting strip (611). 12) The slide rail groove (612) is provided with symmetrical limiting pads (613) at both ends, and the limiting pads (613) are fixed to the limiting strip (611); the linkage frame (62) includes a linkage strip (621), a cross arm (622) is fixed to the top of the linkage strip (621), a lever (623) is fixed to one end of the cross arm (622), a limiting frame (624) is provided at one end of the linkage strip (621), and a limiting post (641) is provided inside the limiting frame (624), and the limiting post (641) is fixed to the arc-shaped rack (64).

2. A self-starting synchronous reluctance machine with high start-up torque according to claim 1, characterized in that, The stator includes a stator core (2) and a stator winding (21). The stator winding (21) is a three-phase integer slot distributed winding. The stator core (2) is separated from the rotor by an air gap.

3. A self-starting synchronous reluctance machine with high start-up torque as claimed in claim 1, wherein, The magnetic barrier is a C-shaped structure and has five layers. Except for the first magnetic barrier (32), the slot sizes of the second and fourth magnetic barriers near the air gap are similar, and the slot sizes of the third and fifth magnetic barriers near the air gap are similar.

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