Axial flux switch reluctance motor

Abstract

The invention discloses an axial magnetic flux switch reluctance motor, which comprises a motor shell, a motor operation controller, two symmetrically arranged stators and a rotor arranged between the two stators, the motor operation controller comprises a winding current trigger and a rotor positioner, and the stators and the rotor have a common rotating axis. According to the axial magnetic flux switch reluctance motor, the size of the motor can be reduced, the motor can be controlled by a direct-current power supply, meanwhile, the motor has good heat dissipation performance, a motor operation controller is not affected by strong electromagnetic interference, the motor is more suitable for the strong electromagnetic interference environment and the high-temperature working environment, and the service life of the motor is prolonged. Therefore, the axial magnetic flux switch reluctance motor has better stability and safety.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to an axial flux switched reluctance motor. Background Art

[0002] The switched reluctance motor drive system is a mechatronic AC speed control system with many advantages such as simple structure, reliable operation, flexible system control, good speed regulation performance, and high operating efficiency. It is particularly suitable for operation in harsh environments and occasions requiring ultra-high speed. Therefore, it is widely used in coal mining, aviation, automobiles and other fields. The power range is from a few watts to several megawatts, and the speed range is from a few rpm to tens of thousands rpm.

[0003] The switched reluctance motor follows the principle of minimum magnetic resistance of the magnetic circuit to generate electromagnetic torque and convert electrical energy into mechanical energy. At present, ordinary switched reluctance motors and permanent magnet switched reluctance motors are generally based on radial air gap flux structures, inner rotor and outer stator or inner stator and outer rotor hub motors. Compared with axial air gap flux motors, the electromagnetic torque density and power density of radial air gap flux motors are not as good as those of axial air gap flux motors. In addition, the controllers currently equipped with motors are mainly electronic and electrical, and such controllers are still insufficient in their ability to resist high temperatures and electromagnetic interference. Summary of the invention

[0004] The purpose of the present invention is to provide an axial flux switched reluctance motor. Existing switched reluctance motors are mostly radial flux motors, which make the motor diameter larger. The axial flux switched reluctance motor of the present invention can reduce the size of the motor. This motor can be controlled by a DC power supply, which is more advantageous in electric vehicles and can save components such as inverters.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] The present invention provides an axial flux switched reluctance motor, which includes a motor housing, a motor operation controller, two symmetrically arranged stators and a rotor installed between the two stators, wherein the motor operation controller includes a winding current trigger and a rotor positioner, and the stator and the rotor have a common rotation axis, and the stator includes:

[0007] An even number of slot-type magnetic poles are distributed in a circular array with the rotation axis as the center line, and have a fan-shaped projection on a plane perpendicular to the rotation axis, and have grooves facing the slot-type magnetic poles of the other stator;

[0008] A stator shaft seat, which is coaxially arranged with the rotating axis and is used for fixing and assembling the yoke bracket and the slot-shaped magnetic pole;

[0009] A yoke bracket, comprising a cylindrical yoke radially connecting the slot-shaped magnetic pole and the stator shaft seat, and a cylindrical yoke coaxially arranged with the cylindrical yoke; wherein two collinear yoke brackets on the same stator are a yoke bracket group, and the slot-shaped magnetic poles connected thereto are a slot-shaped magnetic pole group;

[0010] The winding structure includes a coil arranged on each yoke bracket group, wherein the coil is wound on the yoke bracket group under the condition that the direction of the current flowing through the coil remains the same, the coil is fully and evenly wound on each cylindrical yoke and cylindrical yoke in the yoke bracket group, and the coil wound on each yoke bracket group has only one pair of power supply terminals;

[0011] The rotor comprises:

[0012] An even number of magnetic conductive cores are distributed in a circular array with the rotation axis as the center line, each magnetic conductive core is vertically penetrated and assembled on the rotor disk, and can sequentially pass through the grooves of the slot-shaped magnetic poles along the rotation trajectory when the rotor disk rotates;

[0013] The rotor disk can rotate freely around the rotating shaft center and is provided with a through slot for assembling the magnetic conductive core; a transmission shaft is arranged at the center of the rotor disk, the transmission shaft passes through the rotor disk and rotates synchronously with the rotor disk, and the two ends of the transmission shaft pass through the stator shaft seats on both sides of the rotor disk and rotate in cooperation with the stator shaft seats;

[0014] The winding current trigger comprises:

[0015] The trigger boss mechanism comprises a trigger boss which is aligned with the slot-shaped magnetic pole in spatial position, and the trigger boss has a compressed state and a free state: in the free state, the trigger boss is in a raised state by an elastic structure, and in the compressed state, the elastic structure is compressed to make the trigger boss in a fallen state; the trigger boss controls the winding structure to be energized or de-energized in the raised state and the fallen state by setting an electrical contact;

[0016] A concave slide rail, wherein the concave slide rail is filled between the trigger bosses that are intermittently arranged in space, and together with the trigger bosses, forms a circular track;

[0017] The rotor positioner comprises a positioner body rigidly connected to the rotor disk and rotating synchronously, and further comprises:

[0018] The ball mechanism has a ball group that is aligned with the magnetic core of the rotor in spatial position, the ball group is assembled in a countersunk hole opened in the positioner body through a ball bracket, and a compression spring that pushes up the ball bracket is arranged in the countersunk hole so that the ball group always protrudes from the end surface of the positioner body;

[0019] The annular track formed by the concave slide rail and the trigger boss is configured to fit the rotation path of the ball group and match the contour of the ball group to maintain smoothness when the rotor positioner rotates;

[0020] When the ball group moves to the trigger boss, the trigger boss is in the compressed state, and when the ball group leaves the trigger boss, the trigger boss is in the free state;

[0021] Furthermore, when the ball assembly moves to any position, the electrical contacts provided by the trigger boss always energize only the winding structure that can continue to magnetically pull the rotor to rotate.

[0022] Furthermore, the central angle of the slot-type magnetic pole is 30°, and the angle between adjacent slot-type magnetic poles on the same stator is also 30°; the groove is in a fan-shaped ring that is concentric with the slot-type magnetic pole.

[0023] Furthermore, the elastic structure includes an inner mounting groove of the slide rail, a spring-loaded spring, and a pair of insulating transmission rods, the trigger boss is slidably assembled in the inner mounting groove of the slide rail through the pair of insulating transmission rods, the spring-loaded spring is sleeved outside the insulating transmission rods, and is tightly assembled between the inner mounting groove of the slide rail and the trigger boss;

[0024] The bottom of one of the insulating transmission rods corresponds to two normally open elastic contact points through a normally open connection fork, and the bottom of the other insulating transmission rod is provided with a normally closed connection fork and two normally closed elastic contact points connected by the normally closed connection fork;

[0025] When the trigger boss is pressed down and in a falling state, the normally open elastic contact point contacts the normally open connection fork to be connected, and the normally closed connection fork is pushed away by the insulating transmission rod and disconnected from the normally closed elastic contact point;

[0026] The two normally open elastic contact points and the two normally closed elastic contact points are used to control the on and off of the winding structure.

[0027] Furthermore, it also includes a controller housing, the winding current trigger also includes a positioning cover body, the trigger boss mechanism and the concave slide rail are assembled on the positioning cover body, the positioning cover body and the controller housing are threadedly assembled, the rotor positioner is arranged in a cavity between the positioning cover body and the controller housing, and the transmission shaft passes through the controller housing into the cavity and is threadedly connected to the positioner body.

[0028] Furthermore, the rotor positioner also includes a locking bolt for locking the transmission shaft and the positioner body. After locking, the locking bolt allows the magnetic core and the ball group to be aligned in space. The locking bolt also has a single-sided convex edge. The controller housing is provided with a controller bearing at the point where the transmission shaft passes through. The single-sided convex edge of the locking bolt is used to cooperate and tighten the inner ring of the controller bearing.

[0029] Furthermore, a positioning boss corresponding to the trigger boss is arranged at the edge of the positioning cover body, and the positioning boss is used to align the positioning boss with the slot-shaped magnetic pole when installed in the motor housing.

[0030] Furthermore, each of the yoke brackets includes at least one cylindrical yoke coaxially arranged with the cylindrical yoke, and the cylindrical yokes are nested with each other, and one end of the cylindrical yoke is provided with a threading hole for the coil to pass through, so that the coil can be fully and evenly wound between the cylindrical yokes or between the cylindrical yoke and the cylindrical yoke;

[0031] The coils wound on the two yoke brackets in the same yoke bracket group are arranged to bypass the stator shaft seat from one side when passing through the stator shaft seat, and the end of the cylindrical yoke is provided with a rib for limiting the coil.

[0032] Furthermore, the rotor disk is provided with ventilation openings facing the stators on both sides thereof along the circumferential direction; four ventilation openings are evenly provided, and each ventilation opening has a relative chamfered surface in the circumferential direction of the rotor disk, so that when the rotor disk rotates, the airflow can be axially pushed to penetrate the rotor disk;

[0033] The positioner body is evenly provided with ventilation windows, the positioning cover is provided with ventilation holes, the controller housing is provided with ventilation holes, and the ventilation openings, ventilation holes, ventilation holes and ventilation windows are arranged in a circular array along the axial direction.

[0034] Furthermore, the controller housing is filled with lubricating oil whose liquid level is lower than that of the vent and the air hole, a sealing ring is provided in the threaded assembly gap between the positioning cover and the controller housing, a sealing gasket is provided at the bottom of the mounting groove in the slide rail, an observation window and a sealing bolt are provided on the circumferential surface of the controller housing, and the openings of the vent and the air hole both have a downward inclination angle.

[0035] Furthermore, a permanent magnet is fixedly implanted in the magnetic permeable core, and the NS property of the magnetic pole of the permanent magnet is placed opposite to the NS property of the slot-type magnetic pole.

[0036] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0037] First, in the radial flux motor in the prior art, the stator winding is located on the outside of the rotor salient pole, which makes the overall diameter of the motor larger and the axial space utilization of the motor low. However, in the axial flux switched reluctance motor in the present invention, the motor diameter is smaller, which effectively reduces the size of the motor and improves the application efficiency of the motor.

[0038] And under the condition of the same outer diameter, the axial flux switched reluctance motor of the present invention has a greater torque, wherein the three surfaces where the magnetic core and the slot-type magnetic poles cooperate can produce a motor air gap, while the radial flux motor only has a motor air gap between the top surface of the rotor's salient pole and the stator winding, and the three-sided air gap structure can store more energy, making the motor have greater power.

[0039] The stator winding of the present invention adopts a multi-level nested structure and is arranged between the slot-type magnetic poles, so that the space between the slot-type magnetic poles can be fully utilized. Moreover, on the one hand, the magnetic flux density can be increased to the maximum extent and the magnetic field strength can be strengthened; on the other hand, the nested structure makes each layer of the winding structure thinner, which is beneficial to the heat dissipation of the winding structure; in addition, the gaps in the nested structure can also allow air to flow, thereby cooperating with the axial airflow running through the motor to achieve the effect of air cooling and heat dissipation.

[0040] In addition, the motor operation controller in the present invention adopts a mechanical structure. Compared with the electronic motor controller, it is not affected by strong electromagnetic interference and is more adaptable to strong electromagnetic interference environments. In particular, it can work normally when subjected to electromagnetic pulses and has higher stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0042] Figure 1 It is a structural schematic diagram of the axial flux switched reluctance motor of the present invention.

[0043] Figure 2 It is a schematic diagram of the matching structure of the stator and the rotor in the present invention.

[0044] Figure 3 It is a schematic diagram of the stator without winding assembly in the present invention.

[0045] Figure 4 It is an overall schematic diagram of the winding structure of the present invention assembled on the stator.

[0046] Figure 5 It is an overall schematic diagram of the winding structure in the present invention.

[0047] Figure 6 It is a schematic diagram of a single winding structure in the present invention.

[0048] Figure 7 It is a schematic diagram of the current direction within a single winding structure.

[0049] Figure 8 It is a schematic diagram of the structure of the rotor in the present invention.

[0050] Fig. 9 It is one of the cross-sectional schematic diagrams of the stator and rotor combination in the present invention.

[0051] Fig.10 This is the second schematic cross-sectional view of the stator and rotor combination in the present invention.

[0052] Fig.11 This is the third schematic cross-sectional view of the stator and rotor combination in the present invention.

[0053] Fig.12 It is a schematic diagram of the layered structure of the yoke bracket and the slot-type magnetic pole in the present invention.

[0054] Fig.13 It is a structural schematic diagram of the motor operation controller of the present invention.

[0055] Fig.14 It is a schematic diagram of the front and back structures of the winding current trigger in the present invention.

[0056] Fig.15 It is one of the structural schematic diagrams of the rotor positioner in the present invention.

[0057] Fig.16 This is the second structural schematic diagram of the rotor positioner in the present invention.

[0058] Fig.17 It is a schematic diagram of the coordination relationship between the winding current trigger and the rotor positioner in the present invention.

[0059] Fig.18 It is a structural schematic diagram of the controller housing in the present invention.

[0060] Fig.19 It is a structural schematic diagram of the elastic structure in the present invention.

[0061] Fig. 20 It is a schematic diagram of the positional relationship between the trigger boss and the ball assembly at different rotation moments in the present invention.

[0062] Fig.21 It is a motor control circuit diagram of the motor operation controller in the present invention.

[0063] Fig. 22 It is a structural schematic diagram of a magnetic permeable core in the present invention.

[0064] In the figure:

[0065] 100, motor housing, 200, motor operation controller, 300, stator, 400, rotor, 500, rotating shaft;

[0066] 210. Winding current trigger;

[0067] 211. trigger boss mechanism, 2111. trigger boss, 2112. elastic structure, 2113. mounting groove in the slide rail, 2114. spring top spring, 2115. insulating transmission rod, 2116. normally open connecting fork, 2117. normally open elastic contact point, 2118. normally closed connecting fork, 2119. normally closed elastic contact point;

[0068] 212, concave slide rail, 213, positioning cover body, 2131, positioning boss, 2132, ventilation hole, 2133, sealing ring, 2134, sealing gasket, 2135, cover body thread;

[0069] 220. Rotor positioner;

[0070] 221, positioner body, 2211, countersunk hole, 2212, compression spring, 2213, vent window;

[0071] 222, ball mechanism, 2221, ball group, 2222, ball bracket;

[0072] 223, locking nut, 2231, single-sided convex edge;

[0073] 230, controller housing, 231, controller bearing, 232, vent hole, 233, observation window, 234, blocking bolt;

[0074] 310, slot-type magnetic pole, 310S, slot-type magnetic pole group, 311, groove, 320, stator shaft seat, 330, yoke bracket, 331, cylindrical yoke, 332, cylindrical yoke, 333, rib, 330S, yoke bracket group, 340, winding structure, 341, coil, 342, power terminal, 343, threading hole;

[0075] 410, magnetic core, 411, permanent magnet, 420, rotor disk, 421, through slot, 422, transmission shaft, 423, vent, 424, magnetic isolation layer,

[0076] P1, fan-shaped projection;

[0077] R1, circular track. DETAILED DESCRIPTION

[0078] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0079] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0080] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0081] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0082] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] like Figure 1-Figure 22 The axial flux switched reluctance motor shown in the figure comprises a motor housing 100, a motor operation controller 200, two symmetrically arranged stators 300 and a rotor 400 installed between the two stators 300, the motor operation controller 200 comprises a winding current trigger 210 and a rotor positioner 220, the stator 300 and the rotor 400 have a common rotation axis 500, and are combined with Figure 3-Figure 6 As shown, the stator 300 includes:

[0084] The slot-type magnetic poles 310 are distributed in an even number in a circular array with the rotation axis 500 as the center line, and have a fan-shaped projection P1 on a plane perpendicular to the rotation axis 500, and have a groove 311 of the slot-type magnetic pole 310 facing the other stator 300; the groove 311 is fan-shaped and concentric with the slot-type magnetic pole 310;

[0085] The stator shaft seat 320 is coaxially arranged with the rotating axis 500 and is used for fixing and assembling the yoke bracket 330 and the slot-shaped magnetic pole 310;

[0086] The yoke bracket 330 includes a cylindrical yoke 331 radially connecting the slot-shaped magnetic pole 310 and the stator shaft seat 320, and also includes a cylindrical yoke 332 coaxially arranged with the cylindrical yoke 331; wherein the two collinear yoke brackets 330 on the same stator 300 are a yoke bracket group 330S, and the slot-shaped magnetic poles 310 connected thereto are a slot-shaped magnetic pole group 310S;

[0087] The winding structure 340 includes a coil 341 disposed on each yoke support group 330S, wherein the coil 341 is wound on the yoke support group 330S under the condition that the direction of the current flowing through the coil 341 remains the same, and the coil 341 is fully and evenly wound on each cylindrical yoke 332 and cylindrical yoke 331 in the yoke support group 330S, and each coil 341 wound on the yoke support group 330S has only a pair of power terminals 342;

[0088] The purpose of winding the coil 341 on the yoke bracket group 330S under the condition of keeping the current direction the same is that, according to the right-hand screw rule, by controlling the direction of the winding structure 340 on the cylindrical yoke 332 and the cylindrical yoke 331, a through magnetic pole with one end as an N pole and the other end as an S pole is formed between the slot-type magnetic pole group 310S after the stator 300 is energized. For details, see Figure 7 shown.

[0089] And if Figure 3 As shown, in a specific embodiment of the present invention, the central angle of the slot-type magnetic pole 310 is 30°, and the angle between adjacent slot-type magnetic poles 310 on the same stator 300 is also 30°, that is, a total of six slot-type magnetic poles 310 are arranged, and the slot-type magnetic poles 310 on the same axis are grouped and marked as three groups, namely slot-type magnetic pole groups 310S. For the convenience of subsequent description, the six slot-type magnetic poles 310 are respectively marked as A1 and A2 (coaxial), B1 and B2 (coaxial), and C1 and C2 (coaxial).

[0090] Therefore, in the present invention, the winding structure 340 is respectively wound on the yoke bracket group 330S between A1-A2, between B1-B2, and between C1-C2, that is, between A1-A2, between B1-B2, and between C1-C2. By controlling the current in the coil 341 to maintain the same direction, the stator 300 can form through magnetic poles in the directions of A1-A2, B1-B2, and C1-C2, such as Figure 5 , Figure 6 and Figure 7 As shown, current flows in from one power terminal 342 and flows out from another power terminal 342, so that multiple groups of winding structures 340 slot-type magnetic pole groups 310S on the stator 300 can generally form a magnetic field distribution with an N pole at one end and an S pole at the other end.

[0091] Combination Figure 8 As shown, the rotor 400 includes:

[0092] An even number of permeable cores 410 are distributed in a circular array with the rotation axis 500 as the center line. Each permeable core 410 is vertically penetrated and assembled on the rotor disk 420, and can sequentially pass through the grooves 311 of the slot-type magnetic poles 310 along the rotation trajectory when the rotor disk 420 rotates;

[0093] The rotor disk 420 can rotate freely around the rotating shaft 500, and is provided with a through slot 421 for assembling the magnetic conductive core 410; a transmission shaft 422 is provided at the center of the rotor disk 420, the transmission shaft 422 penetrates the rotor disk 420 and rotates synchronously with the rotor disk 420, and both ends of the transmission shaft 420 pass through the stator shaft seats 320 on both sides of the rotor disk 420, and rotate in cooperation with the stator shaft seats 320;

[0094] After the winding structure 340 of the stator 300 of the present invention is energized, a magnetic field is generated to form magnetic poles, thereby forming a magnetic force on the permeable core 410, so that the rotor disk 420 rotates. When the permeable core 410 rotates with the rotor disk 420, the permeable core 410 passes through the groove 311 of the slot-type magnetic pole 310. The groove 311 is a fan-shaped ring concentric with the slot-type magnetic pole 310, so that the upper and lower surfaces of the groove 311 and the upper and lower surfaces of the permeable core 410 form a motor air gap.

[0095] Specifically, combined Figure 2As shown, when the slot-type magnetic pole 310 cooperates with the permeable core 410, the three surfaces of the groove 311 of the slot-type magnetic pole 310 will generate air gaps with the permeable core 410 passing through. Compared with the conventional switched reluctance motor, which only generates a single-sided air gap between the rotor salient pole (top surface) and the magnetic pole, the three-sided air gap structure of the present invention can store more energy and make the motor have greater power. In addition, when the permeable core 410 passes through the groove 311 of the slot-type magnetic pole 310 at high speed, it also has the effect of accelerating the air flow in the area to guide and dissipate heat.

[0096] In order to form a uniform air gap between the permeable core 410 and the groove 311 when the permeable core 410 passes through the groove 311 of the slot-type magnetic pole 310, the permeable core 410 is configured to be a fan-shaped ring similar to the groove 311, and the central angle of each permeable core 410 is also 30°, but the adjacent permeable cores 410 are spaced 60° apart, such as Figure 8 As shown, there are four magnetic conductive cores 410 in the circumferential direction. For the convenience of explanation, they are labeled a, b, c, and d respectively.

[0097] It is worth noting that Fig.12 As shown, in order to further reduce eddy current loss, the slot-type magnetic pole 310, the magnetic yoke bracket 330 and the magnetic permeable core 410 can all adopt a layered magnetic isolation design.

[0098] When the winding structures 340 on the slot-type magnetic pole groups 310S (A1-A2, B1-B2, C1-C2) of the two stators 300 are energized in sequence, NS pole magnetic fields will be formed in sequence on A1-A2, B1-B2, and C1-C2. Fig. 9 , Fig.10 and Fig.11 As shown in the cross-sectional view of the stator 300 and the rotor 400, taking the moving direction of the rotor 400 as an example, according to the principle of the shortest magnetic line of force, at a certain moment Fig. 9 As shown, the winding structure 340 between C1 and C2 is energized to generate magnetic force on the b and d permeable cores 410, causing the rotor 400 to rotate in the direction shown in the figure; at the next moment, as shown in FIG. Fig.10 As shown, the winding structure 340 between B1 and B2 is energized to generate magnetic force on the a and c permeable cores 410, so that the rotor 400 continues to rotate in the direction shown in the figure; at the next moment, as shown in FIG. Fig.11 As shown, the winding structure 340 between A1 and A2 is energized to generate magnetic force on the b and d permeable cores 410, so that the rotor 400 keeps rotating in the direction shown in the figure; at the next moment, it returns to Fig. 9 The state is repeated over and over again, and the rotor 400 continues to rotate under the action of the rotating magnetic fields of the two stators 300.

[0099] If the rotor 400 is pressed Fig. 9The principle is the same as that of the reverse direction, which only needs to be energized in the order of B1-B2, C1-C2, and A1-A2. Thus, the present invention can control the energization sequence of the winding structure 340 to make the motor generate forward and reverse motion.

[0100] Then, in order to control the motor to perform forward and reverse motion according to the set method, and considering further improving the stability of the motor so that it can resist strong electromagnetic interference environment, especially maintain normal operation when subjected to electromagnetic pulses, the axial flux switched reluctance motor of the present invention also includes a winding current trigger 210 and a rotor positioner 220;

[0101] like Figures 13 to 19 As shown, the winding current trigger 210 includes:

[0102] The trigger boss mechanism 211 comprises a trigger boss 2111 which is aligned with the slot-shaped magnetic pole 310 in spatial position, and the trigger boss 2111 has a compressed state and a free state: in the free state, the trigger boss 2111 is in a raised state by the elastic structure 2112, and in the compressed state, the elastic structure 2112 is compressed to make the trigger boss 2111 in a dropped state; the trigger boss 2111 controls the winding structure 340 to be energized or de-energized in the raised state and the dropped state by setting an electrical contact;

[0103] A concave slide rail 212, wherein the concave slide rail 212 is filled between the trigger bosses 2111 that are intermittently arranged in space, and together with the trigger bosses 2111, forms a circular track R1;

[0104] The rotor positioner 220 has a positioner body 221 rigidly connected to the rotor disk 420 and rotating synchronously, and also includes:

[0105] The ball mechanism 222 has a ball group 2221 which is aligned with the magnetic core 410 of the rotor 400 in spatial position. The ball group 2221 is assembled in a counterbore 2211 provided in the positioner body 221 through a ball bracket 2222, and a compression spring 2212 is provided in the counterbore 2211 to push up the ball bracket 2222 so that the ball group 2221 always protrudes from the end surface of the positioner body 221.

[0106] The annular track R1 formed by the concave slide rail 212 and the trigger boss 2111 is configured to fit the rotation path of the ball group 2221 and match the profile of the ball group 2221 to maintain smoothness when the rotor positioner 220 rotates;

[0107] Specifically, the trigger boss 2111 has chamfers at both ends, which is beneficial to the movement of the ball group 2221 and reduces the impact of the ball group 2221 on the trigger boss 2111. In addition, the radial surface of the trigger boss 2111 has a curvature shape that matches the spherical surface of the ball group 2221, which is beneficial to the movement of the balls. Moreover, the curvature shape of the concave slide rail 212 matches the curvature shape of the spherical surface of the ball group 2221; the curvature shape of the circumferential surface of the trigger boss 2111 is consistent with the curvature shape of the concave slide rail 212, and also matches the curvature shape of the spherical surface of the ball group 2221; the width of the trigger boss 2111 is slightly narrower than the width of the concave slide rail 212, ensuring that the ball group 2221 is also supported by the concave slide rail 212 when passing through the trigger boss 2111, which is beneficial to the movement of the ball group 2221.

[0108] In addition, the opening of the countersunk hole 2211 should be designed with a tapered opening, and the diameter of the tapered opening should be smaller than the diameter of the balls in the ball group 2221 to prevent the balls from falling out of the countersunk hole 2211 during rolling. During assembly, an appropriate gap should be maintained between the winding current trigger 210 and the rotor positioner 220 so that the ball group 2221 is always pressed against the circular track R1.

[0109] When the ball group 2221 moves to the trigger boss 2111, the trigger boss 2111 is in the compressed state, and when the ball group 2221 leaves the trigger boss 2111, the trigger boss 2111 is in the free state;

[0110] Furthermore, when the ball assembly 2221 moves to any position, the electrical contacts provided by the trigger boss 2111 always only energize the winding structure 340 that can continue to magnetically pull the rotor 400 to rotate.

[0111] In the above, the stator 300 has six slot-shaped magnetic poles 310, and the motor rotor 400 has four magnetic permeable cores 410. Figure 8 As shown, they are marked as a, b, c, and d respectively.

[0112] Therefore, the trigger bosses 2111 are provided with six corresponding to the slot-shaped magnetic poles 310, such as Fig.14 As shown, for the convenience of explanation, they are marked as a1-a2 (coaxial), b1-b2 (coaxial), c1-c2 (coaxial). In order to make the concave slide rail 212 and the trigger boss 2111 together form the annular track R1, the trigger boss 2111 should maintain a cross-sectional shape with the same circular curvature as the concave slide rail 212, and the circumferential angle of each trigger boss 2111 is 30°, and the circumferential angle between two adjacent trigger bosses 2111 is also 30°.

[0113] In a specific embodiment, the rotor positioner 220 rotates synchronously with the motor rotor 400, and the ball group 2221 and the magnetic conductive core 410 of the motor rotor 400 are aligned in space. Fig.16 As shown, it is worth noting that each ball group 2221 is arranged in an arc shape with an arc of 30°, and the circumferential angle between the ball groups 2221 is 60°, so there are four ball groups 2221, which correspond to the magnetic core 410 and are marked as a', b', c', d' for ease of explanation.

[0114] Then, during a complete rotation of the ball group 2221 along with the motor rotor 400, the ball group 2221 will present several different typical positions relative to the trigger boss 2111, as shown in FIG. Fig. 20 As shown, the position of the ball set 2221 relative to the trigger boss 2111 also represents the position of the magnetic core 410 of the motor rotor 400 relative to the slot-shaped magnetic pole 310.

[0115] In order to control the rotation of the motor rotor 400, it is necessary that when the permeable core 410 appears at any position, the slotted magnetic pole 310 can provide the required magnetic traction for the permeable core 410 to keep it moving. Therefore, it is necessary to control the power-on sequence of the stator winding structure 340 by triggering the boss 2111 so that the winding structure 340 can always magnetically pull the permeable core 410 to rotate at the required position.

[0116] like Fig.19 As shown, as a specific means for realizing the above-mentioned control of the rotation of the motor rotor 400, the elastic structure 2112 includes a mounting groove 2113 in the slide rail, a spring-top spring 2114 and a pair of insulating transmission rods 2115, and the trigger boss 2111 is slidably assembled in the mounting groove 2113 in the slide rail through a pair of insulating transmission rods 2115, and the spring-top spring 2114 is sleeved outside the insulating transmission rod 2115 and tightly assembled between the mounting groove 2113 in the slide rail and the trigger boss 2111;

[0117] The bottom of one of the insulating transmission rods 2115 corresponds to two normally open elastic contact points 2117 through a normally open connection fork 2116, and the bottom of the other insulating transmission rod 2115 is provided with a normally closed connection fork 2118 and two normally closed elastic contact points 2119 connected by the normally closed connection fork 2118;

[0118] When the trigger boss 2111 is pressed down and in a falling state, the normally open elastic contact point 2117 contacts the normally open connecting fork 2116 to be connected, and the normally closed connecting fork 2118 is pushed away by the insulating transmission rod 2115 and disconnected from the normally closed elastic contact point 2119.

[0119] The two normally open elastic contact points 2117 and the two normally closed elastic contact points 2119 are used to control the on and off of the stator winding structure 340 .

[0120] And combined with Fig.19 as well as Fig.15 When the elastic force of the compression spring 2212 is greater than the elastic force of the top spring 2114, it is ensured that the ball group 2221 can always be in close contact with the concave slide rail 212 during the process of squeezing the trigger boss 2111 to descend.

[0121] In a specific embodiment, the process of the motor operation controller 200 controlling the rotor 400 of the motor to rotate is as follows:

[0122] Regardless of the initial state of the magnetic core 410 of the rotor 400 and the slot-type magnetic pole 310, Fig. 20 At any position of the motor, when the motor needs to rotate clockwise or counterclockwise, the winding structure 340 between the corresponding slot-shaped magnetic poles 310 can be turned on by triggering the boss 2111 according to a certain rule, thereby controlling the movement of the motor rotor 400. Fig. 20 As an example, assuming that the initial state of the motor rotor and stator is Fig. 20 In the (1) position, the control rules of the rotor position, the trigger boss start, and the energized winding are shown in the motion sequence 1 in Table 1. If the motor rotor and stator are initially in Fig. 20 For other positions in , the control rules are similar.

[0123] Table 1 Motor control process and logical relationship

[0124]

[0125] The motor control circuit designed according to the motor control process and logical relationship in Table 1 is shown in Fig.21 The controller triggers the circuit when the bosses a1, b1, and c1 control the motor to rotate counterclockwise (see the solid line portion in the figure); the controller triggers the circuit when the bosses a2, b2, and c2 control the motor to rotate clockwise (see the dotted line portion in the figure).

[0126] Combination Fig. 20 , Fig.21 As shown in Table 1 above, take the motor rotating counterclockwise as an example, refer to Fig. 20 As shown in (1), the ball groups a' and c' are located at the concave slide rail 212 and fail to contact the trigger boss 2111, while the ball groups b' and d' are located at the trigger boss b1-b2. Fig. 20 As shown in b1 state, when Fig.21b1 is compressed, so that the C1-C2 and B1-B2 windings are both in a power-off state, while the corresponding stator windings A1-A2 are in a power-on state, so that the magnetic core 410 corresponding to the magnetic traction ball groups a' and c' rotates counterclockwise;

[0127] Then in Fig. 20 In the middle (2) position, at this moment, the ball groups a', c', b', and d' can all contact their adjacent trigger bosses a1-a2 and b1-b2. Since it rotates counterclockwise, Fig.21 As shown in b1, a1 state, when Fig. 9 After b1 and a1 are compressed, the C1-C2 and B1-B2 windings are still in the power-off state, while the corresponding stator windings A1-A2 are in the power-on state, thereby continuing to magnetically pull the magnetic core 410 corresponding to the ball groups a' and c' to rotate counterclockwise;

[0128] exist Fig. 20 In the middle (3) position, at this moment, the ball groups b' and d' fail to trigger the trigger boss, while a' and c' just trigger the boss a1-a2. Since it rotates counterclockwise, the reference Fig.21 As shown, a1 is in a compressed state, at this time, the C1-C2 winding is energized, while the A1-A2 and B1-B2 windings are both in a de-energized state. According to the principle of the shortest magnetic lines of force, the C1-C2 winding can pull the magnetic core 410 corresponding to b' and d' to continue to move counterclockwise after being energized.

[0129] exist Fig. 20 In the middle (4) position, at this moment, the ball groups a', c', b', and d' can all contact their adjacent trigger bosses a1-a2 and c1-c2. Since it rotates counterclockwise, Fig.21 In the c1 and a1 states shown, when c1 and a1 are compressed, the corresponding C1-C2 windings are still energized, while the A1-A2 and B1-B2 windings are both in the de-energized state, so that the C1-C2 windings can pull the magnetic core 410 corresponding to b' and d' to continue to move counterclockwise after being energized.

[0130] exist Fig. 20 In the middle (5) position, at this moment, the ball groups a' and c' fail to trigger the trigger boss, while b' and d' can just press down the trigger boss c1-c2 at their positions. Since it rotates counterclockwise, the reference Fig.21 As shown, c1 is in a compressed state, at this time, the B1-B2 winding is energized, while the C1-C2 and A1-A2 windings are both in a de-energized state. According to the principle of the shortest magnetic lines of force, the B1-B2 winding can pull the magnetic core 410 corresponding to a' and c' to continue to move counterclockwise after being energized.

[0131] exist Fig. 20In the middle (6) position, at this moment, the ball groups a', c', b', and d' can all contact their adjacent trigger bosses b1-b2 and c1-c2. Since it rotates counterclockwise, refer to Fig.21 As shown, when b1 and c1 are pressed down, the B1-B2 winding is energized, while the C1-C2 and A1-A2 windings are in the power-off state. According to the principle of the shortest magnetic lines of force, the B1-B2 winding can pull the magnetic core 410 corresponding to a' and c' to continue to move counterclockwise after being energized.

[0132] The above is a description of the control process of controlling the motor rotor to rotate counterclockwise in the present invention. If the motor rotor and stator are initially in the Fig. 20 The control rules for other positions in are similar, which can be referred to Fig.21 When the motor rotor is controlled to rotate clockwise, refer to Fig.21 The circuit shown by the dotted line part is sufficient.

[0133] like Figures 3 to 6 As shown, considering the space utilization between the slot-type magnetic poles 310 and the density of the winding structure 340, each of the yoke brackets 330 includes at least one cylindrical yoke 332 coaxially arranged with the cylindrical yoke 331, and the cylindrical yoke 332 and the cylindrical yoke 331 are nested, and a threading hole 343 for the coil 341 to pass through is opened at one end of the cylindrical yoke 332, so that the coil 341 is fully and evenly wound between the cylindrical yokes 332 or between the cylindrical yoke 332 and the cylindrical yoke 331;

[0134] The coils 341 wound on the two yoke brackets 330 in the same yoke bracket group 330S are arranged to bypass the stator shaft seat 320 from one side when passing through the stator shaft seat 320 , and the end of the cylindrical yoke 332 is provided with a rib 333 for limiting the coils 341 .

[0135] In a specific embodiment of the present invention, the motor operation controller 200 also includes a controller housing 230, the winding current trigger 210 also includes a positioning cover body 213, the trigger boss mechanism 211 and the concave slide rail 212 are assembled on the positioning cover body 213, the positioning cover body 213 and the controller housing 230 are threadedly assembled through the cover body thread 2135, the rotor positioner 220 is arranged in the cavity between the positioning cover body 213 and the controller housing 230, and the transmission shaft 422 passes through the controller housing 230 into the cavity and is threadedly connected to the positioner body 221.

[0136] Combination Fig.13As shown, in this embodiment, the rotor positioner 220 also includes a locking bolt 223 for locking the transmission shaft 422 and the positioner body 221. After locking, the locking bolt 223 allows the magnetic core 410 and the ball group 2221 to correspond and align in space. The locking bolt 223 also has a single-sided flange 2231. The controller housing 230 is provided with a controller bearing 231 at the point where the transmission shaft 422 passes through. The single-sided flange 2231 of the locking bolt 223 is used to cooperate with and tighten the inner ring of the controller bearing 231.

[0137] In this embodiment, a positioning boss 2131 corresponding to the trigger boss 2111 is disposed at the edge of the positioning cover 213 , and the positioning boss 2131 is used to align the positioning boss 2131 with the slotted magnetic pole 310 when installed in the motor housing 100 .

[0138] like Figure 8 As shown, in this embodiment, the rotor disk 420 is provided with ventilation openings 423 along the circumferential direction toward the stators 300 on both sides thereof; four ventilation openings 423 are evenly provided, and each ventilation opening 423 has a relative chamfered surface in the circumferential direction of the rotor disk 420, so that when the rotor disk 420 rotates, the airflow can be axially pushed to penetrate the rotor disk 420;

[0139] like Fig.15 As shown, the positioner body 221 is evenly provided with ventilation windows 2213. Fig.13 As shown, the positioning cover 213 is provided with a ventilation hole 2132. Fig.18 As shown, the controller housing 230 is provided with a vent hole 232 , and the vent opening 423 , the vent hole 2132 , the vent hole 232 and the vent window 2213 are arranged in a circular array along the axial direction.

[0140] It is worth noting that the rotor disk 420 is preferably made of non-magnetic material. Figure 2 and Figure 8 As shown, the vent 423 has relative beveled surfaces in the circumferential direction of the rotor disk 420. When the rotor disk 420 rotates clockwise or counterclockwise at high speed, it can promote the airflow movement in the axial direction, so that a penetrating airflow is formed inside the motor to dissipate the heat of the motor, especially the airflow can be introduced between the cylindrical yokes 332, thereby enhancing the heat dissipation of the coil 341.

[0141] Based on the aforementioned structure of the stator 300 similar to the "M" shape, the axial airflow passes through the structural gap of the stator 300, which is beneficial to the heat dissipation of the stator 300 as a whole, and due to the nested winding structure design on the yoke bracket 330, when the axial airflow flows past the cylindrical yoke 331 close to the stator shaft seat 320, according to the Bernoulli principle, the airflow speed here is faster and the pressure is lower, thereby the airflow inside the cylindrical yoke 332 away from the stator shaft seat 320 will be led out; further, the cylindrical yoke 332 is not a closed structure, and a threading hole 343 is provided on it for the coil 341 to pass through. As the airflow is led out, the pressure decreases, and the airflow with slow flow rate and high pressure on the outside of the cylindrical yoke 332 will enter the inside of the cylindrical yoke 332 along the unclosed threading hole 343, thereby forming convection, which can effectively enhance the overall heat dissipation effect of the winding structure 340.

[0142] Combination Figure 8 As shown, a magnetic isolation layer 424 is provided at the through slot 421 of the rotor disk 420, which can gather the magnetic lines of force on the magnetic core 410, prevent the magnetic lines of force from entering the rotor disk 420, and reduce magnetic loss. At the same time, a stator bearing is provided in the stator shaft seat 320, and a magnetic isolation layer 424 is also provided between the outer ring of the bearing and the stator shaft seat 320 to prevent the magnetic lines of force from entering the transmission shaft 422.

[0143] like Fig. 22 As shown, in other embodiments, a permanent magnet 411 is fixedly implanted in the permeable core 410, and the magnetic pole NS property of the permanent magnet is placed opposite to the NS property of the slot-type magnetic pole. In this case, the motor can become a permanent magnet motor.

[0144] In order to ensure the smooth operation of the motor, the controller housing 230 is filled with lubricating oil whose liquid level is lower than the vent 423 and the vent hole 232. The threaded assembly gap between the positioning cover 213 and the controller housing 230 is provided with a sealing ring 2133. The bottom of the mounting groove in the slide rail is provided with a sealing gasket 2134. The circumferential surface of the controller housing 230 is provided with an observation window 233 and a blocking bolt 234. The openings of the vent hole 2132 and the vent hole 232 are both inclined downward. When the positioner body 221 rotates, the ball group 2221 and the concave slide rail 212 are lubricated by splashing, which is beneficial to the rolling and heat dissipation of the ball group 2221.

[0145] All thread designs and parts that cooperate with threads in this article, in addition to the functions of connection and fixing, also have the function of combining and installing parts so that the motor as a whole can be assembled smoothly.

[0146] In the motor, the relevant structural dimensions of the stator and the rotor can be adjusted as needed to meet the requirements of installation in spaces of different sizes.

[0147] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An axial flux switched reluctance motor, comprising a motor housing, a motor operation controller, two symmetrically arranged stators and a rotor installed between the two stators, characterized in that: The motor operation controller includes a winding current trigger and a rotor positioner. The stator and the rotor have a common rotation axis. The stator includes: An even number of slot-type magnetic poles are distributed in a circular array with the rotation axis as the center line, and have a fan-shaped projection on a plane perpendicular to the rotation axis, and have grooves facing the slot-type magnetic poles of the other stator; A stator shaft seat, which is coaxially arranged with the rotating axis and is used for fixing and assembling the yoke bracket and the slot-shaped magnetic pole; A yoke bracket, comprising a cylindrical yoke radially connecting the slot-shaped magnetic pole and the stator shaft seat, and a cylindrical yoke coaxially arranged with the cylindrical yoke; wherein two collinear yoke brackets on the same stator are a yoke bracket group, and the slot-shaped magnetic poles connected thereto are a slot-shaped magnetic pole group; The winding structure includes a coil arranged on each yoke bracket group, wherein the coil is wound on the yoke bracket group under the condition that the direction of the current flowing through the coil remains the same, the coil is fully and evenly wound on each cylindrical yoke and cylindrical yoke in the yoke bracket group, and the coil wound on each yoke bracket group has only one pair of power supply terminals; The rotor comprises: An even number of magnetic conductive cores are distributed in a circular array with the rotation axis as the center line, each magnetic conductive core is vertically penetrated and assembled on the rotor disk, and can sequentially pass through the grooves of the slot-shaped magnetic poles along the rotation trajectory when the rotor disk rotates; The rotor disk can rotate freely around the rotating shaft center and is provided with a through slot for assembling the magnetic conductive core; a transmission shaft is arranged at the center of the rotor disk, the transmission shaft passes through the rotor disk and rotates synchronously with the rotor disk, and the two ends of the transmission shaft pass through the stator shaft seats on both sides of the rotor disk and rotate in cooperation with the stator shaft seats; The winding current trigger comprises: The trigger boss mechanism comprises a trigger boss which is aligned with the slot-shaped magnetic pole in spatial position, and the trigger boss has a compressed state and a free state: in the free state, the trigger boss is in a raised state by an elastic structure, and in the compressed state, the elastic structure is compressed to make the trigger boss in a fallen state; the trigger boss controls the winding structure to be energized or de-energized in the raised state and the fallen state by setting an electrical contact; A concave slide rail, wherein the concave slide rail is filled between the trigger bosses that are intermittently arranged in space, and together with the trigger bosses, forms a circular track; The rotor positioner comprises a positioner body rigidly connected to the rotor disk and rotating synchronously, and further comprises: The ball mechanism has a ball group that is aligned with the magnetic core of the rotor in spatial position, the ball group is assembled in a countersunk hole opened in the positioner body through a ball bracket, and a compression spring that pushes up the ball bracket is arranged in the countersunk hole so that the ball group always protrudes from the end surface of the positioner body; The annular track formed by the concave slide rail and the trigger boss is configured to fit the rotation path of the ball group and match the contour of the ball group to maintain smoothness when the rotor positioner rotates; When the ball group moves to the trigger boss, the trigger boss is in the compressed state, and when the ball group leaves the trigger boss, the trigger boss is in the free state; Furthermore, when the ball assembly moves to any position, the electrical contacts provided by the trigger boss always energize only the winding structure that can continue to magnetically pull the rotor to rotate.

2. The axial flux switched reluctance motor according to claim 1, characterized in that: The center angle of the slot-shaped magnetic pole is 30°, and the angle between adjacent slot-shaped magnetic poles on the same stator is also 30°; the groove is in a fan-shaped ring shape concentric with the slot-shaped magnetic pole.

3. The axial flux switched reluctance motor according to claim 1, characterized in that: The elastic structure includes a mounting groove in the slide rail, a spring-loaded spring, and a pair of insulating transmission rods. The trigger boss is slidably assembled in the mounting groove in the slide rail through the pair of insulating transmission rods. The spring-loaded spring is sleeved outside the insulating transmission rods and tightly assembled between the mounting groove in the slide rail and the trigger boss. The bottom of one of the insulating transmission rods corresponds to two normally open elastic contact points through a normally open connection fork, and the bottom of the other insulating transmission rod is provided with a normally closed connection fork and two normally closed elastic contact points connected by the normally closed connection fork; When the trigger boss is pressed down and in a falling state, the normally open elastic contact point contacts the normally open connection fork to be connected, and the normally closed connection fork is pushed away by the insulating transmission rod and disconnected from the normally closed elastic contact point; The two normally open elastic contact points and the two normally closed elastic contact points are used to control the on and off of the winding structure.

4. The axial flux switched reluctance motor according to claim 1, characterized in that: It also includes a controller housing, the winding current trigger also includes a positioning cover body, the trigger boss mechanism and the concave slide rail are assembled on the positioning cover body, the positioning cover body and the controller housing are threadedly assembled, the rotor positioner is arranged in a cavity between the positioning cover body and the controller housing, and the transmission shaft passes through the controller housing into the cavity and is threadedly connected to the positioner body.

5. The axial flux switched reluctance motor according to claim 4, characterized in that: The rotor positioner also includes a locking bolt for locking the transmission shaft and the positioner body. After locking, the locking bolt allows the magnetic core and the ball group to align in spatial position. The locking bolt also has a single-sided convex edge. The controller housing is provided with a controller bearing at the point where the transmission shaft passes through. The single-sided convex edge of the locking bolt is used to cooperate and tighten the inner ring of the controller bearing.

6. The axial flux switched reluctance motor according to claim 4, characterized in that: A positioning boss corresponding to the trigger boss is arranged at the edge of the positioning cover body, and the positioning boss is used to align the positioning boss with the slot-shaped magnetic pole when installed in the motor housing.

7. The axial flux switched reluctance motor according to claim 1, characterized in that: Each of the yoke brackets includes at least one cylindrical yoke coaxially arranged with the cylindrical yoke, and the cylindrical yokes are nested with each other, and one end of the cylindrical yoke is provided with a threading hole for the coil to pass through, so that the coil can be fully and evenly wound between the cylindrical yokes or between the cylindrical yoke and the cylindrical yoke; The coils wound on the two yoke brackets in the same yoke bracket group are arranged to bypass the stator shaft seat from one side when passing through the stator shaft seat, and the end of the cylindrical yoke is provided with a rib for limiting the coil.

8. The axial flux switched reluctance motor according to claim 1, characterized in that: The rotor disk is provided with ventilation openings facing the stators on both sides thereof along the circumferential direction; four ventilation openings are evenly provided, and each ventilation opening has a relative chamfered surface in the circumferential direction of the rotor disk, so that when the rotor disk rotates, the airflow can be axially pushed to penetrate the rotor disk; The positioner body is evenly provided with ventilation windows, the positioning cover is provided with ventilation holes, the controller housing is provided with ventilation holes, and the ventilation openings, ventilation holes, ventilation holes and ventilation windows are arranged in a circular array along the axial direction.

9. The axial flux switched reluctance motor according to claim 4, characterized in that: The controller housing is filled with lubricating oil whose liquid level is lower than that of the vent and the air hole, a sealing ring is provided in the threaded assembly gap between the positioning cover and the controller housing, a sealing gasket is provided at the bottom of the mounting groove in the slide rail, an observation window and a sealing bolt are provided on the circumferential surface of the controller housing, and the openings of the vent and the air hole have a downward inclination angle.

10. The axial flux switched reluctance motor according to claim 1, characterized in that: A permanent magnet is fixedly implanted in the magnetic permeable core, and the NS property of the magnetic pole of the permanent magnet is opposite to the NS property of the slot-type magnetic pole.

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