Disclosure of Invention
The invention aims to solve the problems and provides a motor with a novel rotating structure and an assembling method thereof.
In order to solve the technical problem, the invention provides a motor with a novel rotating structure, which comprises a stator, a rotor and a transmission mechanism, wherein the rotor is annular; the stator is in a hollow ring shape, covers the rotor and is provided with a through hole; and the transmission mechanism is connected with the rotor through the through hole and is used for transmitting the kinetic energy generated by the rotor.
Optionally, the rotor comprises several rotor cores; the permanent magnet is arranged between every two rotor cores and forms a continuous ring shape with the rotor cores; and the gear teeth are positioned at the peripheries of the rotor iron core and the permanent magnet.
Optionally, the gear teeth are arranged in the middle of the periphery of the rotor, the tooth width of the gear teeth being smaller than the height of the rotor.
Optionally, the stator comprises a stator core and windings mounted within the stator core, wherein the windings surround the rotor.
Optionally, the rotor core and the stator core are made of soft magnetic materials; the rotor core and the stator core are formed by laminating annular sheets made of soft magnetic materials.
Optionally, the motor further comprises a motor casing, the stator core and the transmission mechanism are covered by the motor casing, the motor casing comprises a protruding portion, and the transmission mechanism is installed on the protruding portion.
Optionally, the transmission mechanism comprises a transmission shaft and a transmission gear fixed on the transmission shaft, wherein the transmission gear is matched with the gear teeth and used for driving the transmission shaft to rotate; the transmission shaft is rotatably arranged on the protruding portion in a penetrating mode and used for driving the external structure to perform mechanical movement.
Optionally, the number of the transmission mechanisms is multiple and the transmission mechanisms are uniformly arranged outside the rotor at intervals, and the number of the transmission mechanisms is the same as that of the through holes.
Optionally, the transmission gear is provided with a first bearing mounting groove, the periphery of the rotor facing the transmission gear is provided with a second bearing mounting groove, a bearing is mounted in the second bearing mounting groove, and one side of the bearing facing the transmission gear protrudes out of the second bearing mounting groove and is embedded into the first bearing mounting groove for fixing the rotor.
The invention also provides a motor assembling method of the novel rotating structure, which comprises the following steps:
s1, inserting the annular rotor into the hollow annular stator;
s2, connecting the transmission mechanism and the rotor through the through hole on the stator;
and S3, generating repulsion or attraction between the magnetic field formed by the rotor and the magnetic field formed by the stator, driving the rotor to rotate, and transmitting the kinetic energy generated by the rotation of the rotor out of the motor through a transmission mechanism.
According to the technical scheme, the rotor of the motor with the novel rotating structure is annular, a rotating shaft on a physical entity is not arranged, the annular rotor rotates around a geometric central shaft, the winding surrounds the rotor, and the stator core covers the winding and the rotor, so that the annular rotor can penetrate through the winding and rotate in a special mode that the stator covers the rotor, an included angle between the acting force of a stress point of the rotor and the rotating direction is small, the stress of a local stress point of the rotor is large, the moment for driving the rotor to rotate is large, and the motor can replace an internal combustion engine.
Detailed Description
Referring to fig. 1, the present invention provides a motor with a novel rotating structure, including a stator 100, a rotor 200 (see fig. 2 in detail), and a transmission mechanism 300, wherein the rotor 200 is in a ring shape; the stator 100 is in a hollow ring shape, covers the rotor 200, and is provided with a through hole 110; and a transmission mechanism 300 connected to the rotor 200 through the through hole 110 for transmitting kinetic energy generated by the rotor 200. The magnetic field formed by the rotor 200 and the magnetic field formed by the stator 100 generate a repulsive or attractive force to drive the rotor 200 to rotate. The motor with the novel rotating structure can be a synchronous or asynchronous motor or a generator with a novel structure, and the conversion between electric energy and mechanical energy is realized by a novel structure.
As shown in fig. 2, the rotor 200 includes a rotor core 210; permanent magnets 220 disposed between each two of the rotor cores 210 and forming a continuous ring shape with the rotor cores 210; gear teeth 230 are located at the periphery of the rotor core 210 and the permanent magnet 220, and preferably, the gear teeth 230 are herringbone gear teeth. N, S poles of the permanent magnets 220 on the rotor 200 are oppositely arranged, and each permanent magnet 220 can be independently detached; the permanent magnet 220 may be a winding, a tile-shaped magnetic steel, a rectangular magnetic steel, a rare earth permanent magnet, etc., as long as it can provide a permanent magnetic effect, and is not limited herein. It is understood that the permanent magnet 220 may also be a coil as long as it can provide a magnetic field. The rotor core 210 is made of a soft magnetic material, and in order to reduce the loss of the rotor core 210, the rotor core 210 is formed by laminating annular sheets made of the soft magnetic material, wherein the radii of the annular sheets in each layer may be different from each other. In a preferred embodiment of the present invention, the driving gear 320 is disposed at the center of the circumference of the ring-shaped rotor 200, and the tooth width is smaller than the height of the ring-shaped rotor 200. The particular tooth width of the drive gear 320 is determined based on the particular environment of use.
As shown in fig. 3, specifically, the stator 100 includes a stator core 120 and a winding 130 installed in the stator core 120, and the stator core 120 is a member made of a soft magnetic material. In order to reduce the loss of the stator core 120, the stator core 120 is formed by laminating annular sheets made of a soft magnetic material, wherein the radii of the annular sheets of each layer may be different from each other. A mounting groove 121 is provided in the stator core 120 for mounting the winding 130, and the winding 130 is caught in the mounting groove 121. In fig. 3, only one winding is numbered for clarity and simplicity of the drawing. In a preferred embodiment of the present invention, the central hole 131 of the winding 130 is rectangular, and it is understood that the shape thereof may be set according to actual use conditions, for example, it may also be circular ring shape or other irregular shape, as long as it has a shape allowing the rotor to pass therethrough and rotate, and the specific shape thereof is not limited herein. The number of the windings 130 may be one, two, or even multiple, and is not limited herein. In a preferred embodiment of the present invention, the number of the windings 130 is 6, but the number of the transmission mechanism 300 may be more than 6 for increasing the transmission torque, and the like, and may be determined according to the usage environment of the motor.
As shown in fig. 4, the rotor 200 is inserted into the winding 130, and the winding 130 is covered outside the rotor 200 and does not rotate with the rotation of the rotor 200. The transmission mechanism 300 is engaged with the rotor 200 to transmit kinetic energy generated by the rotor 200 to an external component. It can be understood that the wall of the central hole 131 of the winding 130 forms a physical gap with the rotor 200, so that the rotor 200 can continuously rotate in the stator, the physical gap varies according to the size of the motor, and the physical gap of the conventional motor is between 0.001mm and 100 mm; for an oversized motor, i.e., a motor with rotor 200 having a diameter greater than or equal to 5m, or a nanomotor, i.e., a motor with rotor 200 having a diameter less than 0.1m, the physical gap is increased or decreased in response to demand to ensure continuous rotation of rotor 200 within windings 130.
As shown in fig. 5, in order to transmit the kinetic energy generated by the rotor 200, a through hole 110 is provided at an outer side of the stator core 120 so that the transmission mechanism 300 can be connected to the rotor 200 through the through hole 110, thereby transmitting the kinetic energy generated by the rotor 200 out of the motor. It is understood that the through hole 110 may be disposed on the inner side, the upper side or the lower side of the stator core 120, and accordingly, the transmission mechanism 300 is engaged with the rotor 200 through the through hole 110 of the stator core 120, and the position of the through hole 110 is not particularly limited as long as it can achieve the purpose that the transmission mechanism 300 is connected with the rotor 200 through the through hole 110.
The motor further includes a motor case 400 coated outside the stator core 120 and the transmission mechanism 300, the motor case 400 further includes a protrusion 410, and the transmission mechanism 300 is mounted on the protrusion 410. Specifically, the protruding portion is provided with a mounting hole 411, and the transmission mechanism 300 is inserted into the mounting hole 411. For clarity and simplicity of fig. 5, only one boss 410 and its corresponding mounting hole 411 are shown. It is understood that a bearing end cap (not shown) may be further installed at the installation hole 411 for providing lubricant to the transmission 300 and also functioning to seal the transmission 300, prevent dust and fix the transmission 300. The number of the transmission mechanism 300 may be one or more, and when the transmission mechanism 300 is plural, the transmission mechanism is disposed outside the rotor 200 at an even interval to transmit the kinetic energy generated by the rotor 200, and at the same time, the transmission mechanism also has a supporting and fixing function for the rotor 200. Preferably, the motor housing 400 may have an annular hollow structure covering the stator 100 and the transmission mechanism 300 to facilitate the external transmission mechanism (not shown), and when the motor housing 400 has an annular hollow structure, a middle hole of the annular hollow structure may facilitate the external transmission mechanism to pass through. It is understood that the transmission mechanism 300 may be disposed outside the rotor 200 unevenly as long as it can perform a transmission function, and is not limited thereto. In a preferred embodiment of the present invention, the number of the transmission mechanisms 300 is 3, and in this case, the number of the through holes 110 is also 3, but for reasons such as increasing the transmission torque, the number of the transmission mechanisms 300 may be larger than 3, the number of the through holes 110 is correspondingly increased, and the specific number of the transmission mechanisms 300 needs to be determined according to the usage environment of the motor. It will be appreciated that the number of through-holes 110 is the same as the number of drive gear sets.
Each transmission gear set comprises a transmission shaft 310 and a transmission gear 320, the transmission shaft 310 penetrates through the transmission gear 320, and two ends of the transmission shaft 310 penetrate through the mounting hole 411 and extend out of the motor casing 400, so that mechanical energy generated by the motor is transmitted to an external structure. The transmission gear 320 is a herringbone gear matched with the gear teeth 230 to be meshed with the rotor 200, the rotor 200 rotates to drive the transmission gear 320 to rotate, the transmission gear 320 rotates to drive the transmission shaft 310 to rotate, and the transmission shaft 310 drives the external structure to perform mechanical motion to transmit kinetic energy generated by the rotor 200. The driving shaft 310 is rotatably mounted on the boss 410. Further, a first bearing mounting groove 330 is formed on the transmission gear 320, a second bearing mounting groove 240 is formed on a periphery of the rotor facing the transmission gear 320, and a bearing (not shown) is mounted in the first bearing mounting groove 330 such that the first bearing mounting groove 330 can freely rotate relative to the transmission gear 320, protrudes from the first bearing mounting groove 330 toward one side of the rotor 200, and is inserted into the second bearing mounting groove 240 to fix a position of the rotor 200. It is understood that the second bearing mounting groove 240 may be a boss and inserted into the first bearing mounting groove 330 of the boss to fix the rotor 200. The protrusion structure may also be located on the gear teeth 230, i.e., the protrusion protrudes from the surface of the gear teeth 230 and is inserted into the second bearing installation groove 240, which functions to fix the rotor 200. It is understood that a bearing (not shown) may be directly added to the inner ring of the rotor 200, and one end of the bearing is on the rotor 200 and the other end is on the stator 100, so as to fix the position of the rotor 200 without affecting the rotation of the rotor 200. Of course, a groove (not shown) may be respectively disposed on the rotor 200 and the stator 100, and a ball and a retainer may be added to the groove to achieve the effect of a bearing, as long as the groove can fix the position of the rotor 200 and does not affect the rotation of the rotor 200, which is not limited herein.
As shown in fig. 6, the present invention also provides a motor assembling method of a novel rotary structure, comprising the following steps:
s1, inserting the annular rotor 200 into the hollow annular stator 100;
s2, connecting the transmission mechanism 300 and the rotor 200 through the through hole 110 on the stator 100;
s3, the magnetic field formed by the rotor 200 and the magnetic field formed by the stator 100 generate repulsion or attraction force to drive the rotor 200 to rotate, and the kinetic energy generated by the rotation of the rotor 200 is transmitted out of the motor through the transmission mechanism 300.
In summary, in the motor with the novel rotating structure provided by the present invention, the rotor 200 is annular, there is no physically rotating shaft, the annular rotor 200 rotates around the geometrically central axis, the stator 100 and the winding 130 can surround the rotor 200, the annular rotor 200 passes through the winding 130 of the stator 100, and the stator 100 covers the rotor 200 in a special manner, so that the stress point of the rotor 200 is locally stressed greatly, and the torque for driving the rotor 200 to rotate is large.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.