Rolling rotor reluctance motor or permanent magnet rolling rotor generator

Abstract

Shallow grooves and deep grooves are formed in the inner surface of a stator at intervals in the circumferential direction, stator teeth are arranged between the shallow grooves and the deep grooves, coils are wound around the stator teeth, and a magnetic field is generated between the two stator teeth corresponding to the shallow grooves; two stator teeth corresponding to the shallow slots are marked as a group, coils on odd groups of stator teeth are sequentially connected in series, coils on even groups of stator teeth are sequentially connected in series, N rotors are arranged, each rotor comprises a rotor body and a connecting shaft penetrating through the rotor body along the axis of the rotor body, each rotor body comprises four surfaces, and a smooth chamfer structure is formed at the joint of every two adjacent surfaces. A positioning protruding part is arranged in the middle of each face and arranged in the length direction of the corresponding face, and when the rotors rotate on the inner surface of the stator, one face of each rotor is always kept to be tightly attached to the inner surface of the stator, so that the air gap is zero, the magnetic flux is increased, and the efficiency of the motor or the generator is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors and generators, and in particular to a rolling rotor reluctance motor or a permanent magnet rolling rotor generator. Background Art

[0002] Since the invention of the electric motor, it has promoted the great development of industry and other industries. Various power equipment and various electrical appliances use electric motors. In particular, small electric vehicles and new energy vehicles are all driven by electric motors, which are environmentally friendly, cost-saving, simple in structure, easy to operate, and generally popular.

[0003] Due to the extensive use of various motors, the power consumption has also increased significantly. In order to save electric energy, the efficiency of the motor has been paid attention to. Because improving the efficiency of the motor will save electricity; saving electricity will save a lot of coal and various energy for power generation. Because most of the total power generation currently relies on burning coal, this process not only pollutes the air, but also consumes limited natural resources. Based on this, a rolling rotor reluctance motor is urgently needed to improve the efficiency of the motor and reduce the cost of using the motor. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present application proposes a rolling rotor reluctance motor or a permanent magnet rolling rotor generator.

[0005] In order to achieve the above-mentioned purpose, one aspect of the present application proposes a rolling rotor reluctance motor, including a shell, wherein the left and right ends of the shell are respectively fixedly connected with a left end cover and a right end cover, the left end of the main shaft is rotatably connected to the left end cover via a left bearing, and the right end of the main shaft is rotatably connected to the right end cover via a right bearing; a stator is fixedly connected to the inner wall of the shell, the stator is cylindrical, and shallow grooves and deep grooves are arranged on the inner surface of the stator at intervals along the circumferential direction, and the shallow grooves and deep grooves are alternately arranged, and the length directions of the shallow grooves and the deep grooves are arranged along the length direction of the stator, and the shallow grooves and the deep grooves are arranged. The depth direction is arranged along the radial direction of the stator, the structure between the shallow groove and the deep groove is a stator tooth, a coil is wound around each stator tooth, and a magnetic field is generated between two stator teeth corresponding to the shallow groove; the stator includes an even number of stator teeth, and the two stator teeth corresponding to the shallow groove are recorded as a group, the coils on the odd-numbered stator teeth are connected in series in sequence, and two terminals are led out at both ends of the series circuit, which are respectively recorded as A1 terminals and A2 terminals, and the coils on the even-numbered stator teeth are connected in series in sequence, and two terminals are led out at both ends of the series circuit, which are respectively recorded as B1 terminals and B2 terminals, and the odd-numbered stator teeth are controlled by the control circuit. The coils on the even-numbered stator teeth are alternately powered by the coils on the even-numbered stator teeth to rotate the rotor of the motor; N rotors are arranged in the space surrounded by the inner surface of the stator, N≥2, N is an integer, each rotor comprises a rotor body and a connecting shaft passing through the rotor body along the axis of the rotor body, the connecting shaft is fixedly connected to the rotor body, the rotor body comprises four faces, the length direction of each face is arranged along the length direction of the stator, a smooth chamfered structure is formed at the connection between two adjacent faces, a positioning protrusion is arranged in the middle of each face, and the positioning protrusion is arranged along the opposite The surface is arranged in the length direction, when the rotor rotates at the inner surface of the stator, there is always a surface in each rotor that is close to the inner surface of the stator. At this time, the two chamfered structures on the surface and the positioning protrusion in the middle correspond to the two deep grooves on the stator and the shallow groove in the middle of the two deep grooves respectively. The left and right ends of the main shaft inside the shell are respectively fixedly connected with a rotor left bracket and a rotor right bracket, and the structures of the two are arranged in a mirror-symmetrical manner. The left and right ends of the rotor are respectively installed on the rotor left bracket and the rotor right bracket, and the structures after installation are arranged in a mirror-symmetrical manner.

[0006] In some embodiments, the bottom of the deep groove is 1 mm±0.5 mm away from the outer surface of the stator.

[0007] In some embodiments, the rotor left bracket includes a tubular connecting portion and an annular bracket fixedly connected to the tubular connecting portion, the annular bracket is coaxially arranged with the tubular connecting portion, and both are sleeved on the main shaft, the tubular connecting portion is used to be fixedly connected to the main shaft, the annular bracket is provided with N elliptical assembly holes along the circumferential direction, the major axis of each elliptical assembly hole is arranged along the radial direction of the annular bracket, each elliptical assembly hole is connected to the end of the connecting shaft in the corresponding rotor through a corresponding bearing, and the annular bracket is also provided with N columns at intervals along the circumferential direction, each column is provided with a torsion Spring, N torsion spring arm mounting holes are arranged on the annular bracket at intervals along the circumferential direction, one arm of the torsion spring is located at the torsion spring arm mounting hole, and the other arm is against the connecting shaft in the corresponding rotor, a column, a torsion spring and a torsion spring arm mounting hole constitute a connecting shaft positioning structure, and a total of N connecting shaft positioning structures are provided, corresponding to the N rotors, the connecting shaft positioning structures are used to make the connecting shaft in the rotor always have a tendency to be in the position closest to the outer circumference of the annular bracket in the elliptical assembly hole, so that the surface in the rotor can be tightly attached to the inner surface of the stator to form a non-air gap fitting state.

[0008] In some embodiments, a left baffle is fixedly connected to the left surface of the annular bracket of the left rotor bracket, and a right baffle is fixedly connected to the right surface of the annular bracket of the right rotor bracket to prevent the connecting shaft and bearing of the rotor from moving left and right.

[0009] In some embodiments, N shielding holes are provided along the circumference on the left baffle plate, and N shielding holes are provided along the circumference on the right baffle plate. The shielding holes partially shield the connecting shaft and bearings of the rotor, and the torsion spring, connecting shaft and bearings can be observed through the shielding holes.

[0010] In some embodiments, at each surface of each rotor, the surfaces on both sides of the positioning protrusion are recessed to form mounting grooves, each mounting groove is arranged along the length direction of the rotor, and a permanent magnet is provided at each mounting groove. The polarities of the two permanent magnets corresponding to one surface are opposite, and the polarities of the two adjacent permanent magnets on two adjacent surfaces of the rotor are opposite. Each permanent magnet forms a spacing space between its two ends along its own width direction and the side walls of the mounting groove, and the cross-section of the spacing space is semicircular.

[0011] The beneficial effect of the solution of the present application is that the above-mentioned rolling rotor reluctance motor can improve the efficiency of the motor and reduce the cost of using the motor; further, it is conducive to energy conservation and emission reduction, reducing carbon emissions and promoting industrial development.

[0012] Another aspect of the present application provides a permanent magnet rolling rotor generator, comprising a shell, wherein the left and right ends of the shell are respectively fixedly connected with a left end cover and a right end cover, the left end of the main shaft is rotatably connected to the left end cover via a left bearing, and the right end of the main shaft is rotatably connected to the right end cover via a right bearing; a stator is fixedly connected to the inner wall of the shell, the stator is cylindrical, and shallow grooves and deep grooves are arranged on the inner surface of the stator at intervals along the circumferential direction, and the shallow grooves and deep grooves are arranged alternately, the length direction of the shallow grooves and the deep grooves are arranged along the length direction of the stator, and the depth direction of the shallow grooves and the deep grooves are arranged along the radial direction of the stator, and the structure between the shallow grooves and the deep grooves is a stator tooth, and each stator tooth is wound with Coil, a magnetic field is generated between two stator teeth corresponding to the shallow groove; the stator includes an even number of stator teeth, the two stator teeth corresponding to the shallow groove are recorded as a group, the coils on the odd-numbered stator teeth are connected in series in sequence, two terminals are led out at both ends of the series circuit, respectively recorded as A1 terminal and A2 terminal, the coils on the even-numbered stator teeth are connected in series in sequence, two terminals are led out at both ends of the series circuit, respectively recorded as B1 terminal and B2 terminal, N rotors are arranged in the space enclosed by the inner surface of the stator, N≥2, N is an integer, each rotor includes a rotor body and a connecting shaft passing through the rotor body along the axis of the rotor body, the connecting shaft is fixedly connected to the rotor body, The rotor body includes four faces, the length direction of each face is arranged along the length direction of the stator, a smooth chamfered structure is formed at the connection between two adjacent faces, a positioning protrusion is provided in the middle position of each face, and the positioning protrusion is arranged along the length direction of the corresponding face. When the rotor rotates at the inner surface of the stator, there is always one face in each rotor that is close to the inner surface of the stator. At this time, the two chamfered structures on the face and the positioning protrusion in the middle correspond to the two deep grooves on the stator and the shallow groove in the middle of the two deep grooves respectively. The left and right ends of the main shaft inside the shell are respectively fixedly connected with a rotor left bracket and a rotor right bracket, and the two structures are mirror-symmetrical. The left and right ends of the rotor are respectively installed on the left bracket of the rotor and the right bracket of the rotor, and the structure after installation is arranged in a mirror symmetric manner; on each surface of each rotor, the surfaces on both sides of the positioning protrusion are recessed to form installation grooves, each installation groove is arranged along the length direction of the rotor, and a permanent magnet is arranged at each installation groove, the polarities of the two permanent magnets corresponding to one surface are opposite, and the polarities of the two adjacent permanent magnets in the two adjacent surfaces of the rotor are opposite, and each permanent magnet forms a spacing space between its two ends along its own width direction and the side wall of the mounting groove, and the cross section of the spacing space is semicircular; a driving mechanism is assembled on the main shaft to drive the main shaft to rotate.

[0013] In some embodiments, the rotor left bracket includes a tubular connecting portion and an annular bracket fixedly connected to the tubular connecting portion, the annular bracket is coaxially arranged with the tubular connecting portion, and both are sleeved on the main shaft, the tubular connecting portion is used to be fixedly connected to the main shaft, the annular bracket is provided with N elliptical assembly holes along the circumferential direction, the major axis of each elliptical assembly hole is arranged along the radial direction of the annular bracket, each elliptical assembly hole is connected to the end of the connecting shaft in the corresponding rotor through a corresponding bearing, and the annular bracket is also provided with N columns at intervals along the circumferential direction, each column is provided with a torsion Spring, N torsion spring arm mounting holes are arranged on the annular bracket at intervals along the circumferential direction, one arm of the torsion spring is located at the torsion spring arm mounting hole, and the other arm is against the connecting shaft in the corresponding rotor, a column, a torsion spring and a torsion spring arm mounting hole constitute a connecting shaft positioning structure, and a total of N connecting shaft positioning structures are provided, corresponding to the N rotors, the connecting shaft positioning structures are used to make the connecting shaft in the rotor always have a tendency to be in the position closest to the outer circumference of the annular bracket in the elliptical assembly hole, so that the surface in the rotor can be tightly attached to the inner surface of the stator to form a non-air gap fitting state.

[0014] In some embodiments, a left baffle is fixedly connected to the left surface of the annular bracket of the left rotor bracket, and a right baffle is fixedly connected to the right surface of the annular bracket of the right rotor bracket to prevent the connecting shaft and bearing of the rotor from moving left and right.

[0015] In some embodiments, N shielding holes are provided along the circumference on the left baffle plate, and N shielding holes are provided along the circumference on the right baffle plate. The shielding holes partially shield the connecting shaft and bearings of the rotor, and the torsion spring, connecting shaft and bearings can be observed through the shielding holes.

[0016] The beneficial effect of the solution of the present application is that the above-mentioned permanent magnet rolling rotor generator can improve the efficiency of the generator and reduce the cost of using the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An exploded schematic diagram of a rolling rotor reluctance motor in an embodiment is shown.

[0018] Figure 2 A cross-sectional view of a rolling rotor reluctance motor and a schematic diagram of a rotor in an embodiment are shown.

[0019] Figure 3 The stator teeth and rotor magnetic circuit diagram of the rolling rotor reluctance motor in the embodiment are shown.

[0020] Figure 4 A schematic diagram of a stator coil winding method for a rolling rotor reluctance motor in an embodiment is shown.

[0021] Figure 5 The side view and the perspective view of the left rotor bracket in the embodiment are shown.

[0022] Figure 6 A cross-sectional view and a perspective view of a rotor in an embodiment are shown.

[0023] Figure 7 An enlarged view of the arrangement of the torsion spring on the left bracket of the rotor in the embodiment is shown.

[0024] Figure 8 A side view of the left fender in the embodiment is shown.

[0025] Fig. 9 The schematic diagram of the permanent magnet rolling rotor motor in the embodiment is shown.

[0026] Figure numerals: 01-left end cover, 02-housing, 03-stator, 04-coil, 05-first screw, 06-left baffle, 07-torsion spring, 08-rotor left bracket, 09-bearing, 010-rotor, 012-rotor right bracket, 014-right baffle, 015-second screw, 016-left bearing, 017-spindle, 018-right bearing, 019-right end cover, 010A-connecting shaft, 010B-positioning protrusion, 010C-chamfered knot Structure, 020-shallow groove, 021-deep groove, 022-first stator tooth, 023-second stator tooth, 024-third stator tooth, 025-fourth stator tooth, 026-statator tooth, 06-1-first screw mounting hole, 06-2-shielding hole, 08-1-column, 08-2-second screw mounting hole, 08-3-torsion spring arm mounting hole, 08-4-assembly hole, 08-5-elliptical assembly hole, 027-permanent magnet, 028-interval space. DETAILED DESCRIPTION

[0027] The specific implementation of the present application is further described below in conjunction with the accompanying drawings.

[0028] In the description of the present application, it should be understood that the terms "first", "second", etc. are used to distinguish similar objects, rather than to describe or indicate a specific order or sequence. The terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0029] like Figures 1 to 8As shown, the rolling rotor reluctance motor involved in the present application includes a shell 02, and the left and right ends of the shell 02 are respectively fixedly connected with a left end cover 01 and a right end cover 019, the left end of the main shaft 017 is rotatably connected to the left end cover 01 via a left bearing 016, and the right end of the main shaft 017 is rotatably connected to the right end cover 019 via a right bearing 018.

[0030] The inner wall of the housing 02 is fixedly connected with a stator 03, which is cylindrical. Shallow grooves 020 and deep grooves 021 are arranged on the inner surface of the stator 03 at intervals along the circumferential direction, and the shallow grooves 020 and deep grooves 021 are arranged alternately. The length direction of the shallow grooves 020 and the deep grooves 021 is arranged along the length direction of the stator 03, and the depth direction of the shallow grooves 020 and the deep grooves 021 is arranged along the radial direction of the stator 03. The bottom of the deep groove 021 is 1mm±0.5mm away from the outer surface of the stator 03 to block the magnetic circuit. The structure between the shallow grooves 020 and the deep grooves 021 is a stator tooth 026, and a coil 04 is wound around each stator tooth 026. With the above structural design, the deep groove 021 blocks the magnetic circuit of the magnetic field generated by the coil 04, forcing the magnetic field to be generated between the two stator teeth 026 corresponding to the shallow groove 020. The stator 03 includes an even number of stator teeth 026, and two stator teeth 026 corresponding to the shallow grooves 020 are recorded as a group, such as Figure 4 As shown, for example, the two stator teeth 026 corresponding to the first shallow groove 020 are respectively recorded as the first stator tooth 022 and the second stator tooth 023, and the two stator teeth 026 corresponding to the second shallow groove 020 are respectively recorded as the third stator tooth 024 and the fourth stator tooth 025. A deep groove 021 is provided between the first shallow groove 020 and the second shallow groove 020. By analogy, each shallow groove 020 corresponds to a group of stator teeth 026, that is, two stator teeth. The coils 04 on the odd-numbered stator teeth 026 are connected in series in sequence, and two ends of the series circuit are led out. Terminals are respectively recorded as A1 terminal and A2 terminal, which are used to connect to the power supply through the on-off controller, and the coils 04 on the even-group stator teeth 026 are connected in series in sequence. Two terminals are led out at both ends of the series line, which are respectively recorded as B1 terminal and B2 terminal, which are used to connect to the power supply through the on-off controller. The on-off controller is used to control the coils 04 on the odd-group stator teeth 026 and the coils 04 on the even-group stator teeth 026 to be alternately powered, so that the rotor 010 of the motor can be rotated during the continuous power-on and power-off process. For the convenience of wiring, the A2 terminal and the B2 terminal can also be combined into one terminal, recorded as C1 terminal, which is used to connect to the negative pole of the power supply. The specific on-off controller belongs to the prior art and is not the focus of protection of this patent application, so it will not be described in detail here.

[0031] N rotors 010 are arranged in the space enclosed by the inner surface of the stator 03, N≥2, N is an integer, each rotor 010 includes a rotor body and a connecting shaft 010A passing through the rotor body along the axis of the rotor body, the connecting shaft 010A is fixedly connected to the rotor body, the rotor body can be formed by stacking silicon steel sheets, the rotor body includes four faces, the cross-section of the rotor body is similar to a square, the length direction of each face is arranged along the length direction of the stator 03, and a smooth chamfered structure 010C is formed at the connection between two adjacent faces, and a positioning protrusion 010B is arranged in the middle position of each face, and the positioning protrusion 010B is arranged along the length direction of the corresponding face. When the rotor 010 is in the stator When the inner surface of the stator 03 rotates, there is always a surface of each rotor 010 that is in close contact with the inner surface of the stator 03. At this time, the two chamfered structures 010C on the surface and the positioning protrusion 010B in the middle correspond to the two deep grooves 021 on the stator 03 and the shallow groove 020 in the middle of the two deep grooves 021, so that the corresponding surface of the rotor 010 is in close contact with the inner surface of the stator 03. Since the magnetic field is generated between the two stator teeth 026 corresponding to the shallow groove 020, it becomes a shortest magnetic circuit. Because the corresponding surface of the rotor 010 is in close contact with the inner surface of the stator 03, not only the magnetic loss is small, but also the magnetic induction intensity is strong, so that the torque of the motor rotor 010 is also large, and the efficiency of the motor will be improved.

[0032] The left and right ends of the main shaft 017 inside the shell 02 are respectively fixedly connected to the left rotor bracket 08 and the right rotor bracket 012, and the structures of the two are arranged in a mirror-symmetrical manner. The left and right ends of the rotor 010 are respectively installed on the left rotor bracket 08 and the right rotor bracket 012, and the structures after installation are arranged in a mirror-symmetrical manner. The rotor left bracket 08 includes a tubular connecting portion and an annular bracket fixedly connected to the tubular connecting portion. The annular bracket is coaxially arranged with the tubular connecting portion, and both are sleeved on the main shaft 017. The tubular connecting portion is used to be fixedly connected to the main shaft 017. Specifically, the tubular connecting portion is fixedly connected to the main shaft 017 by matching the connecting piece with the assembly hole 08-4 provided on the tubular connecting portion and the main shaft 017. N elliptical assembly holes 08-5 are provided on the annular bracket along the circumferential direction. The major axis of each elliptical assembly hole 08-5 is arranged along the radial direction of the annular bracket. Each elliptical assembly hole 08-5 is connected to the end of the connecting shaft 010A in the corresponding rotor 010 through the corresponding bearing 09. The number N is adapted to the number of rotors 010. The reason why the elliptical assembly hole 08 - 5 is designed is to reduce the processing accuracy and allow the rotor 010 to have a slight wobble in the elliptical assembly hole 08 - 5 , and the wobble is moving toward the main axis 017 or away from the main axis 017 . The annular bracket is also provided with N columns 08-1 spaced apart along the circumferential direction, and each column 08-1 is provided with a torsion spring 07. The annular bracket is also provided with N torsion spring arm mounting holes 08-3 spaced apart along the circumferential direction, one arm of the torsion spring 07 is located at the torsion spring arm mounting hole 08-3, and the other arm is against the corresponding connecting shaft 010A in the rotor 010. One column 08-1, one torsion spring 07 and one torsion spring arm mounting hole 08-3 constitute a connecting shaft positioning structure, so there are a total of N connecting shaft positioning structures corresponding to the N rotors 010. The connecting shaft positioning structure is used to make the connecting shaft 010A in the rotor 010 always tend to be in the position closest to the outer circumference of the annular bracket in the elliptical assembly hole 08-5, so that the surface in the rotor 010 can be tightly attached to the inner surface of the stator 03 to form a gap-free fitting state.

[0033] In order to prevent the connecting shaft 010A and the bearing 09 of the rotor 010 from moving left and right, a left baffle 06 is fixedly connected to the left surface of the annular bracket of the rotor left bracket 08, and a right baffle 014 is fixedly connected to the right surface of the annular bracket of the rotor right bracket 012. Specifically, a plurality of (for example, three) first screw mounting holes 06-1 are provided on the left baffle 06, and a second screw mounting hole 08-2 is provided at a corresponding position on the annular bracket of the rotor left bracket 08. The left baffle 06 is fixed to the left surface of the annular bracket of the rotor left bracket 08 by the cooperation of the first screw 05, the first screw mounting hole 06-1 and the second screw mounting hole 08-2. The arrangement of the left baffle 06 and the right baffle 014 can prevent the connecting shaft 010A and the bearing 09 of the rotor 010 from moving left and right. In order to prevent the connecting shaft 010A and the bearing 09 of the rotor 010 from moving left and right while being able to observe whether the torsion spring 07 needs to be replaced during maintenance, N shielding holes 06-2 are provided along the circumferential direction on the left baffle plate 06, and N shielding holes 06-2 are provided along the circumferential direction on the right baffle plate 014. The shielding holes 06-2 partially shield the connecting shaft 010A and the bearing 09 of the rotor 010, and the torsion spring 07, the connecting shaft 010A and the bearing 09 can be observed through the shielding holes 06-2.

[0034] In the specific use process, the connection shaft positioning structure is set so that the connection shaft 010A in the rotor 010 is located in the position closest to the outer circumference of the annular bracket in the elliptical assembly hole 08-5, so that there is always a surface in the rotor 010 that is in close contact with the inner surface of the stator 03, forming a gap-free fit state. By alternately supplying power to the coils 04 on the odd-group stator teeth 026 and the coils 04 on the even-group stator teeth 026, the rotor 010 of the motor can be rotated during the continuous power-on and power-off process, thereby driving the main shaft 017 to rotate. Since the magnetic field is generated between the two stator teeth 026 corresponding to the shallow groove 020, it becomes a shortest magnetic circuit. And because the corresponding surface in the rotor 010 is in close contact with the inner surface of the stator 03, not only the magnetic loss is small, but also the magnetic induction strength is strong, so that the torque of the motor rotor 010 is also large, and the efficiency of the motor will be improved.

[0035] The rolling rotor reluctance motor involved in the present application has a rotor that does not rotate in the air in the stator, but rolls on the stator teeth, directly contacts the stator teeth, rolls on the stator tooth surface, and has a zero air gap. Such a structural design greatly improves the magnetic flux, increases the magnetic induction intensity of the stator teeth, strengthens the rotational torque of the motor, improves the efficiency of the motor, and reduces the cost of using the motor; further, it is conducive to energy conservation and emission reduction, reduces carbon emissions, and promotes industrial development.

[0036] like Fig. 9As shown, the present application also relates to a permanent magnet rolling rotor motor, which includes the above-mentioned rolling rotor reluctance motor, at each face of each rotor 010, the faces on both sides of the positioning protrusion 010B are recessed to form mounting grooves, each mounting groove is arranged along the length direction of the rotor 010, and a permanent magnet 027 is arranged at each mounting groove, and the polarities of the two permanent magnets 027 corresponding to one face are opposite. In order to prevent magnetic short circuit, each permanent magnet 027 forms a separation space 028 between the two ends along its own width direction and the side wall of the mounting groove, and the cross section of the separation space 028 is semicircular. The polarities of the two adjacent permanent magnets 027 on two adjacent faces of the rotor 010 are opposite.

[0037] If in Fig. 9 On the basis of the invention, a driving mechanism is installed on the main shaft 017 to drive the main shaft 017 to rotate, so as to generate electricity, thus forming a permanent magnet rolling rotor generator. The driving mechanism can be a fan blade or a diesel engine, etc.

[0038] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A rolling rotor reluctance motor, characterized in that: The invention comprises a shell, wherein the left and right ends of the shell are respectively fixedly connected with a left end cover and a right end cover, the left end of the main shaft is rotatably connected to the left end cover via a left bearing, and the right end of the main shaft is rotatably connected to the right end cover via a right bearing; a stator is fixedly connected to the inner wall of the shell, the stator is cylindrical, and shallow grooves and deep grooves are arranged on the inner surface of the stator at intervals along the circumferential direction, and the shallow grooves and deep grooves are arranged alternately, the length direction of the shallow grooves and the deep grooves are arranged along the length direction of the stator, the depth direction of the shallow grooves and the deep grooves are arranged along the radial direction of the stator, and the shallow grooves and the deep grooves are arranged along the radial direction of the stator. The structure between them is a stator tooth, each stator tooth is wound with a coil, and a magnetic field is generated between two stator teeth corresponding to the shallow groove; the stator includes an even number of stator teeth, and the two stator teeth corresponding to the shallow groove are recorded as a group, the coils on the stator teeth of the odd group are connected in series in sequence, and two terminals are led out at both ends of the series circuit, which are respectively recorded as A1 terminal and A2 terminal, and the coils on the stator teeth of the even group are connected in series in sequence, and two terminals are led out at both ends of the series circuit, which are respectively recorded as B1 terminal and B2 terminal, and the coils on the stator teeth of the odd group are connected in series with the stator teeth of the even group. The coils on the stator are alternately powered to rotate the rotor of the motor; N rotors are arranged in the space surrounded by the inner surface of the stator, N≥2, N is an integer, each rotor includes a rotor body and a connecting shaft passing through the rotor body along the axis of the rotor body, the connecting shaft is fixedly connected to the rotor body, the rotor body includes four faces, the length direction of each face is arranged along the length direction of the stator, a smooth chamfered structure is formed at the connection between two adjacent faces, a positioning protrusion is arranged in the middle position of each face, and the positioning protrusion is arranged along the length direction of the corresponding face, when the rotor rotates at the inner surface of the stator, one face of each rotor is always kept close to the inner surface of the stator, at this time, the two chamfered structures on the face and the positioning protrusion in the middle correspond to the two deep grooves on the stator and the shallow groove in the middle of the two deep grooves, respectively, the left and right ends of the main shaft inside the shell are fixedly connected with a rotor left bracket and a rotor right bracket, the structures of the two are arranged in a mirror-symmetrical manner, the left and right ends of the rotor are respectively installed on the rotor left bracket and the rotor right bracket, and the structure after installation is arranged in a mirror-symmetrical manner.

2. The rolling rotor reluctance motor according to claim 1, characterized in that: The bottom of the deep groove is 1 mm±0.5 mm away from the outer surface of the stator.

3. The rolling rotor reluctance motor according to claim 1, characterized in that: The rotor left bracket includes a tubular connecting portion and an annular bracket fixedly connected to the tubular connecting portion, the annular bracket is coaxially arranged with the tubular connecting portion, and both are sleeved on the main shaft, the tubular connecting portion is used to be fixedly connected to the main shaft, the annular bracket is provided with N elliptical assembly holes along the circumferential direction, the major axis of each elliptical assembly hole is arranged along the radial direction of the annular bracket, each elliptical assembly hole is connected to the end of the connecting shaft in the corresponding rotor through a corresponding bearing, the annular bracket is also provided with N columns at intervals along the circumferential direction, each column is provided with a torsion spring, the N torsion spring arm mounting holes are also provided on the annular bracket at intervals along the circumferential direction. One arm of the torsion spring is located at the torsion spring arm mounting hole, and the other arm is against the connecting shaft in the corresponding rotor. A column, a torsion spring and a torsion spring arm mounting hole constitute a connecting shaft positioning structure. A total of N connecting shaft positioning structures are provided, corresponding to the N rotors. The connecting shaft positioning structures are used to ensure that the connecting shaft in the rotor always has a tendency to be in the position closest to the outer circumference of the annular bracket in the elliptical assembly hole, so that the surface in the rotor can be tightly attached to the inner surface of the stator to form a gap-free fitting state.

4. The rolling rotor reluctance motor according to claim 3, characterized in that: A left baffle is fixedly connected to the left surface of the annular bracket of the left rotor bracket, and a right baffle is fixedly connected to the right surface of the annular bracket of the right rotor bracket to prevent the connecting shaft and bearing of the rotor from moving left and right.

5. The rolling rotor reluctance motor according to claim 4, characterized in that: N shielding holes are provided on the left baffle plate along the circumferential direction, and N shielding holes are provided on the right baffle plate along the circumferential direction. The shielding holes partially shield the connecting shaft and the bearings of the rotor, and the torsion spring, the connecting shaft and the bearings can be observed through the shielding holes.

6. The rolling rotor reluctance motor according to any one of claims 1 to 5, characterized in that: On each surface of each rotor, the surfaces on both sides of the positioning protrusion are recessed to form mounting grooves, each mounting groove is arranged along the length direction of the rotor, and a permanent magnet is provided at each mounting groove. The polarities of the two permanent magnets corresponding to one surface are opposite, and the polarities of the two adjacent permanent magnets in two adjacent surfaces of the rotor are opposite. Each permanent magnet forms a spacing space between its two ends along its own width direction and the side walls of the mounting groove, and the cross-section of the spacing space is semicircular.

7. A permanent magnet rolling rotor generator, characterized in that: The invention comprises a shell, wherein the left and right ends of the shell are respectively fixedly connected with a left end cover and a right end cover, the left end of the main shaft is rotatably connected to the left end cover via a left bearing, and the right end of the main shaft is rotatably connected to the right end cover via a right bearing; a stator is fixedly connected to the inner wall of the shell, the stator is cylindrical, and shallow grooves and deep grooves are arranged on the inner surface of the stator at intervals along the circumferential direction, and the shallow grooves and deep grooves are arranged alternately, the length direction of the shallow grooves and the deep grooves are arranged along the length direction of the stator, and the depth direction of the shallow grooves and the deep grooves is arranged along the radial direction of the stator, and the structure between the shallow grooves and the deep grooves is a stator tooth, each stator tooth is wound with a coil, and the magnetic field is at two stator teeth corresponding to the shallow grooves. The stator comprises an even number of stator teeth, and the two stator teeth corresponding to the shallow grooves are recorded as a group. The coils on the odd number of stator teeth are connected in series in sequence, and two terminals are led out at both ends of the series circuit, which are respectively recorded as A1 terminal and A2 terminal. The coils on the even number of stator teeth are connected in series in sequence, and two terminals are led out at both ends of the series circuit, which are respectively recorded as B1 terminal and B2 terminal. N rotors are arranged in the space surrounded by the inner surface of the stator, N≥2, N is an integer, each rotor comprises a rotor body and a connecting shaft passing through the rotor body along the axis of the rotor body, the connecting shaft is fixedly connected to the rotor body, and the rotor body comprises four surfaces. The length direction of each face is arranged along the length direction of the stator, and a smooth chamfered structure is formed at the connection between two adjacent faces. A positioning protrusion is provided in the middle position of each face, and the positioning protrusion is arranged along the length direction of the corresponding face. When the rotor rotates at the inner surface of the stator, there is always one face in each rotor that is close to the inner surface of the stator. At this time, the two chamfered structures on the face and the positioning protrusion in the middle correspond to the two deep grooves on the stator and the shallow groove in the middle of the two deep grooves, respectively. The left and right ends of the main shaft inside the shell are respectively fixedly connected with a rotor left bracket and a rotor right bracket, and the two structures are arranged in a mirror-symmetrical manner. The left and right ends of the rotor are respectively installed on the left bracket and the right bracket of the rotor, and the structure after installation is arranged in a mirror symmetric manner; on each surface of each rotor, the surfaces on both sides of the positioning protrusion are recessed to form installation grooves, each installation groove is arranged along the length direction of the rotor, and a permanent magnet is provided at each installation groove, the polarities of the two permanent magnets corresponding to one surface are opposite, and the polarities of the two adjacent permanent magnets in the two adjacent surfaces of the rotor are opposite, and each permanent magnet forms a spacing space between its two ends along its own width direction and the side wall of the mounting groove, and the cross-section of the spacing space is semicircular; a driving mechanism is assembled on the main shaft to drive the main shaft to rotate.

8. The permanent magnet rolling rotor generator according to claim 7, characterized in that: The rotor left bracket includes a tubular connecting portion and an annular bracket fixedly connected to the tubular connecting portion, the annular bracket is coaxially arranged with the tubular connecting portion, and both are sleeved on the main shaft, the tubular connecting portion is used to be fixedly connected to the main shaft, the annular bracket is provided with N elliptical assembly holes along the circumferential direction, the major axis of each elliptical assembly hole is arranged along the radial direction of the annular bracket, each elliptical assembly hole is connected to the end of the connecting shaft in the corresponding rotor through a corresponding bearing, the annular bracket is also provided with N columns at intervals along the circumferential direction, each column is provided with a torsion spring, the N torsion spring arm mounting holes are also provided on the annular bracket at intervals along the circumferential direction. One arm of the torsion spring is located at the torsion spring arm mounting hole, and the other arm is against the connecting shaft in the corresponding rotor. A column, a torsion spring and a torsion spring arm mounting hole constitute a connecting shaft positioning structure. A total of N connecting shaft positioning structures are provided, corresponding to the N rotors. The connecting shaft positioning structures are used to ensure that the connecting shaft in the rotor always has a tendency to be in the position closest to the outer circumference of the annular bracket in the elliptical assembly hole, so that the surface in the rotor can be tightly attached to the inner surface of the stator to form a gap-free fitting state.

9. The permanent magnet rolling rotor generator according to claim 8, characterized in that: A left baffle is fixedly connected to the left surface of the annular bracket of the left rotor bracket, and a right baffle is fixedly connected to the right surface of the annular bracket of the right rotor bracket to prevent the connecting shaft and bearing of the rotor from moving left and right.

10. The permanent magnet rolling rotor generator according to claim 9, characterized in that: N shielding holes are provided on the left baffle plate along the circumferential direction, and N shielding holes are provided on the right baffle plate along the circumferential direction. The shielding holes partially shield the connecting shaft and the bearings of the rotor, and the torsion spring, the connecting shaft and the bearings can be observed through the shielding holes.

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