CN111917264A - Ultrathin axial motor stator structure with stamping back plate and disc motor - Google Patents
Ultrathin axial motor stator structure with stamping back plate and disc motor Download PDFInfo
- Publication number
- CN111917264A CN111917264A CN202010769024.9A CN202010769024A CN111917264A CN 111917264 A CN111917264 A CN 111917264A CN 202010769024 A CN202010769024 A CN 202010769024A CN 111917264 A CN111917264 A CN 111917264A
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- back plate
- permanent magnet
- motor
- bearing support
- coil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The stator structure comprises a back plate, a coil bearing support and bearings, wherein the back plate is provided with coil holes in an annular array, coils are installed in the coil holes, the center of the back plate is provided with a bearing support installation hole, the bearing support is inserted into the bearing support installation hole in an interference fit manner, the bearing support is of a hollow structure, two bearings are arranged in the hollow structure of the bearing support, and a rotating shaft is inserted into the two bearings; the back plate is of a hollow circular ring structure, and the inner circular surface rotating shaft of the central circular ring of the back plate is tightly matched. The hollow part of the back plate has the function of fixing a coil and is used for replacing a wire slot; the back plate is processed in a punch forming mode. Because the backboard is formed by punching, and the material is the electrolytic galvanized steel sheet, compared with the conventional stator core, the material is cheaper and easier, and the cost of the motor can be reduced.
Description
Technical Field
The invention relates to the technical field of disc motors, in particular to an ultrathin axial motor stator structure with a stamping back plate and a disc motor.
Background
The disc type motor adopts the axial magnetic field design, the stator and the rotor are both disc structures, and the disc type motor has larger radial size and smaller axial size, large rotational inertia and stable operation. Compared with the traditional radial magnetic field motor, the radial magnetic field motor has the characteristics of short axial size, small volume, light weight and high power density. Meanwhile, in order to improve the utilization rate of the permanent magnet material, a Halbach array is mostly adopted to improve the use efficiency of the magnet material. The disc type motor is widely applied to driving motors of transportation equipment and private clothes systems, and has wide market application prospect. However, the magnetic field intensity at the gap between the permanent magnets of the existing disc motor is relatively weak, so that the power density of the motor is low, and a disc motor with a larger volume is needed to reach the motor rotating speed with the same power. The existing disc type motor adopts a tooth part structure, and is large in size and low in motor power.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an object of the present invention is to propose an ultra-thin axial motor stator structure and a disc motor with a stamped back plate. By arranging the auxiliary permanent magnets between the permanent magnets, the magnetic field intensity of the air gap side between the rotor and the stator is greatly improved, so that the size of the motor can be effectively reduced, and the power density of the motor is improved. The air gap magnetic field has higher sine distribution degree and small harmonic content, and can further improve the stability of the motor. Meanwhile, the magnetic field intensity at the non-air gap side can be weakened, the self electromagnetic shielding effect is achieved, and the electromagnetic shielding device is more suitable for occasions with strict requirements on electromagnetic interference.
In a first aspect, the application provides an iron core-free ultrathin axial motor stator structure, which comprises a back plate, coils, a bearing support and bearings, wherein the back plate is provided with coil holes in an annular array, the coils are installed in the coil holes, the center of the back plate is provided with a bearing support installation hole, the bearing support is inserted into the bearing support installation hole in an interference fit manner, the bearing support is of a hollow structure, two bearings are arranged in the hollow structure of the bearing support 7, and a rotating shaft 1 is inserted into the two bearings; the back plate is of a hollow circular ring structure, and the inner circular surface rotating shaft of the central circular ring of the back plate is tightly matched. The hollow part of the back plate has the function of fixing a coil and is used for replacing a wire slot; the back plate is processed in a punch forming mode.
In some embodiments, the material of the back plate can be an electrolytic galvanized steel plate, or a non-oriented silicon steel sheet or a common steel plate; the shape of the coil on the back plate can be fan-shaped, diamond-shaped, trapezoid or triangular.
In some embodiments, the bearing may be an oil bearing, a ball bearing, or a fluid bearing.
In a second aspect, the present application provides an iron core-free ultrathin axial disc motor, including a rotor structure and the stator structure of the first aspect, where the rotor structure includes a rotating shaft, a rotor disc, and permanent magnets, the permanent magnets are trapezoidal, and a certain gap is present between every two permanent magnets; the rotor disc integrally forms the rotating shaft and the permanent magnet into a rotor structure through an injection molding processing technology; the stator structure and the rotor structure are matched and fixed by the rotating shaft (1) and the back plate (6-2), and the air gap can be adjusted.
In some embodiments, the coreless ultrathin axial disc type motor further includes auxiliary permanent magnets, the permanent magnets are distributed in a circular array, a plurality of auxiliary permanent magnets are arranged in gaps between adjacent permanent magnets, a certain included angle is formed between each permanent magnet and the magnetizing direction of each auxiliary permanent magnet, the permanent magnets and the auxiliary permanent magnets are embedded in the bottom of the rotor disc, and the rotating shaft 1 penetrates through the center of the rotor disc and is integrally formed with the rotor disc.
In some embodiments, the angle between the magnetizing directions of the permanent magnet and the auxiliary permanent magnet ranges from 45 degrees to 135 degrees.
In some embodiments, the angle between the magnetizing directions of the permanent magnet and the auxiliary permanent magnet is 45 °, 90 ° or 135 °.
In some embodiments, 1-3 auxiliary permanent magnets are arranged at the gaps between the adjacent permanent magnets.
In some embodiments, the permanent magnet is trapezoidal, fan-shaped, or rectangular in shape, and the auxiliary permanent magnet is rectangular, oval, or cylindrical in shape.
In some embodiments, the permanent magnet and the auxiliary permanent magnet are one of a sintered neodymium iron boron magnet, a bonded neodymium iron boron magnet, a ferrite magnet, an injection molded magnet, or a rubber magnet.
In the invention, 1, the disc type motor has an ultrathin structure with the height of 6mm, the back plate is made of a magnetic conductive material and is replaced by a PCB (printed Circuit Board), a stator tooth part structure is cancelled, and meanwhile, when the included angle between the permanent magnet and the auxiliary permanent magnet in the magnetizing direction is 90 degrees, a Halbach array is adopted in magnetic field arrangement, so that the purposes of improving the motor efficiency and the rotation precision are achieved. The auxiliary permanent magnets are arranged between the permanent magnets, and the magnetic field intensity on the air gap side is greatly improved, so that the size of the motor can be effectively reduced, and the power density of the motor is improved.
2. The auxiliary permanent magnets are arranged between the permanent magnets, and the magnetic field intensity of the air gap side between the rotor and the stator is greatly improved, so that the size of the motor can be effectively reduced, and the power density of the motor is improved. The air gap magnetic field has higher sine distribution degree and small harmonic content, and can further improve the stability of the motor. Meanwhile, the magnetic field intensity at the non-air gap side can be weakened, the self electromagnetic shielding effect is achieved, and the electromagnetic shielding device is more suitable for occasions with strict requirements on electromagnetic interference.
3. The maximum value of the leakage magnetic flux of the motor can be reduced due to the ultrathin structure of the motor, and the Halbach array is adopted for arranging the permanent magnets and the auxiliary permanent magnets, so that the main magnetic flux of the motor passing through the winding coil can be increased to the state of the structure with the tooth part. Meanwhile, the motor has no cogging torque influence caused by a stator tooth part, and finally the purpose of improving the efficiency and the rotation precision of the motor is achieved.
4. The rotating shaft and the rotor disc are integrally cast, and then the permanent magnet and the auxiliary permanent magnet are embedded in the bottom of the rotor disc, so that the four components form an integral structure, the motor assembling procedures are reduced during assembly, the production efficiency of the motor is improved, and the production cost of the motor is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is an exploded view of an ultra-thin axial disc motor without an iron core according to an embodiment of the present invention;
fig. 2 is an assembled structural schematic view of an iron core-free ultrathin axial disc type motor according to an embodiment of the present invention;
FIG. 3 is an exploded view of a coreless ultra-thin axial motor rotor structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a back plate of an ironless ultrathin axial motor according to an embodiment of the present invention;
fig. 5 is an exploded view of a coreless ultra-thin axial motor stator structure according to an embodiment of the present invention;
fig. 6 is an exploded view of an ultra-thin axial disc motor without an iron core according to another embodiment of the present invention.
In the figure: 1. a rotating shaft; 2. a rotor disk; 3. a permanent magnet; 3-1, auxiliary permanent magnets; 4. a coil; 6-1, a back plate; 7. a bearing support; 8. and a bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The first embodiment is as follows:
as shown in fig. 1 and 2, the disc motor structure according to the embodiment of the present invention includes a rotor structure and a stator structure.
As shown in fig. 3, the rotor structure includes a rotating shaft 1, a rotor disk 2, and a permanent magnet 3. The permanent magnets 3 are trapezoidal, and a certain gap is formed between every two permanent magnets 3. The rotor disc 2 integrally forms the rotating shaft 1 and the permanent magnet 3 in an injection molding mode, so that the permanent magnet can be effectively prevented from being subjected to position deviation in the rotating process of the rotor, and the reliability of the motor is ensured. The motor assembly procedures are reduced, and the labor cost is reduced.
As shown in fig. 4, the stator structure includes a coil 4, a back plate 6-1, a bearing support 7, and a bearing 8. The coil 4 is fixed on the back plate 6-1 in a mode of injection molding or pouring molding and the like, can play a role in fixing the coil, and can also enhance the insulativity between the coil and the back plate. The back plate can play a role in enhancing the air gap magnetic field intensity under the condition of only generating weak cogging torque, and can also enhance the structural strength of the rotor structure. The outer circular surface of the bearing support 7 and the inner circular surface of the back plate 6-1 are fixed together in a tight fit mode. The bearings 8 are pressed in from two ends of the center of the bearing support 7, a step can be designed in the middle of the inner circular surface of the bearing support 7, the bearings at two ends are fixed without collision and friction, and unnecessary mechanical loss is reduced.
The back plate 6-1 is a hollow circular ring structure, and the inner circular surface of the central circular ring of the back plate 6-1 is tightly matched with the outer ring of the bearing 8 support. The hollow part of the back plate 6-1 is used for fixing a coil and is used for replacing a wire groove.
The center of the rotor disc 2 is in a circular ring structure, and the inner circular surface of the central circular ring of the rotor disc 2 is tightly matched with the rotating shaft 1.
The bottom of the rotating shaft 1 is provided with a groove which is fixedly matched with the bearing and used for fixing the size of an air gap between the stator and rotor structures.
In some embodiments, the rotor disc 2 is formed by injection molding to fix the permanent magnet 3 and the rotating shaft 1 integrally, so as to ensure that the permanent magnet does not shift during the rotation of the rotor part. The motor assembly procedures are reduced, and the labor cost is reduced.
As shown in fig. 5, the back plate is formed by stamping, and the material is an electrolytic galvanized steel plate, so that the material is cheaper and easier than the conventional stator core, and the cost of the motor can be reduced.
The backplate material magnetic conduction, but backplate tooth portion height is less than the coil height, reduces the tooth's socket torque by a wide margin, according to reasonable calculation, designs different cross-sections and number of turns and the winding coil of height, can reduce the vibrations and the noise of motor, can realize higher control accuracy.
The back plate tooth part is of a hollow structure, and blank positions in the middle of the tooth part can accommodate hall position sensing components and parts, so that the internal space of the motor is fully utilized, and the miniaturization of the motor can be realized.
The rotor structure is closely matched with the bearing 8 in the stator structure through the groove on the rotating shaft 1, and the size of the air gap can be controlled by adjusting the position or the width of the groove and adding a gasket.
Example two:
referring to fig. 6, the iron core-free ultrathin axial motor rotor structure provided by the invention comprises a rotor disc 2, a rotating shaft 1, permanent magnets 3 and auxiliary permanent magnets 3-1, wherein the permanent magnets 3 are distributed in an annular array, a plurality of auxiliary permanent magnets 3-1 are arranged at gaps between adjacent permanent magnets 3, the permanent magnets 3 and the auxiliary permanent magnets 3-1 form a certain included angle in the magnetizing direction, the permanent magnets 3 and the auxiliary permanent magnets 3-1 are embedded at the bottom of the rotor disc, and the rotating shaft 1 penetrates through the center of the rotor disc 2 and is integrally formed with the rotor disc.
The stator tooth structure is used for guiding magnetic flux generated by the permanent magnet to pass through the winding coil, so that the leakage magnetic flux of the motor is reduced, and the torque and the efficiency of the motor can be improved. However, the existence of the stator tooth structure can also cause the motor to generate the negative influence of the cogging torque, and the rotation precision of the motor is reduced. The structure of a stator tooth part is eliminated, the main magnetic flux of the motor passing through a winding coil is reduced, the leakage magnetic flux is increased, and the efficiency of the motor can be reduced. However, the maximum value of the leakage magnetic flux of the motor can be reduced due to the ultrathin structure of the motor, and the auxiliary permanent magnet 3-1 is added, so that the main magnetic flux of the motor passing through the winding coil can be increased to the state of the structure with the tooth part. Meanwhile, the influence of the cogging torque caused by the stator tooth part of the motor is reduced, and the aim of improving the efficiency and the rotation precision of the motor is finally fulfilled.
The permanent magnet 3 and the rotating shaft can be fixed in an integrated mode, and the permanent magnet 3 is guaranteed not to be displaced in the rotating process of the rotor part.
The backboard is made of a PCB material, so that the weight of the motor is reduced, and the motor is light.
The included angle between the magnetizing directions of the permanent magnet 3 and the auxiliary permanent magnet 3-1 is 45-135 degrees.
When the included angle between the magnetizing directions of the permanent magnet 3 and the auxiliary permanent magnet 3-1 is 90 degrees, the magnetic fields of the permanent magnet 3 and the auxiliary permanent magnet 3-1 are arranged into a Halbach array, so that the main flux of the motor passing through the winding coil can be increased to the state of a toothed structure. The magnetic field intensity at the air gap side is greatly improved, so that the size of the motor can be effectively reduced, and the power density of the motor is improved. The air gap magnetic field has higher sine distribution degree and low harmonic content, and can further improve the stability of the motor
And 1-3 auxiliary permanent magnets 3-1 are arranged at the gap between the adjacent permanent magnets 3. Preferably one.
The permanent magnet 3 is trapezoidal, fan-shaped or rectangular, and the auxiliary permanent magnet 3-1 is rectangular, elliptical or cylindrical.
The permanent magnet 3 and the auxiliary permanent magnet 3-1 are one of sintered neodymium iron boron magnet, bonded neodymium iron boron magnet, ferrite magnet, injection molding magnet or rubber magnet. The two materials are selected from the same material, and preferably, Ru Fe B magnet is sintered.
The invention provides a coreless ultrathin axial motor stator structure, which comprises a back plate 6-1, a coil 4, a bearing support 7 and bearings 8, wherein the back plate 6-1 is provided with a ring-shaped array of coil holes, the coil 4 is arranged in the coil hole, the center of the back plate 6-1 is provided with a bearing support mounting hole, the bearing support 7 is inserted into the bearing support mounting hole in an interference fit manner, the bearing support 7 is of a hollow structure, two bearings 8 are arranged in the hollow structure of the bearing support 7, and a rotating shaft 1 is inserted into the two bearings 8.
The back plate 6-1 is of a hollow circular ring structure, and the inner circular surface of the central circular ring of the back plate 6-1 is tightly matched with the outer ring of the bearing support 7. The hollow-out part of the back plate has the function of fixing the coil and is used for replacing the wire slot.
The coil 4 is fixed on the back plate 6-1 through an injection molding processing technology, and the outer circular surface of the bearing support 7 and the inner circular surface of the back plate 6-1 are fixed together in a tight fit mode. The bearings 8 are pressed in from two ends of the center of the bearing support 7, a step can be designed in the middle of the inner circular surface of the bearing support 7, the bearings at two ends are fixed without collision and friction, and unnecessary mechanical loss is reduced. A distance is left between the two bearings 8, so that the stability of the rotating shaft 1 installed on the two bearings 8 is improved.
The bottom of the rotating shaft 1 is provided with a groove, the groove is fixedly matched with the bearing 8, the size of an air gap between the fixed rotor disks is fixed, the rotor structure is tightly matched with the bearing 8 in the stator structure through the groove on the rotating shaft 1, and the size of the air gap can be controlled by adjusting the position or the width of the groove and increasing the gasket.
The invention provides an iron core-free ultrathin axial disc motor, which comprises the rotor structure and the disc motor with the stator structure. The disc motor has the ultra-thin structure of 6mm height, and the backplate material is changed to the PCB material by the magnetic conduction material, cancels stator tooth structure. The auxiliary permanent magnets are arranged between the permanent magnets, and the magnetic field intensity on the air gap side is greatly improved, so that the size of the motor can be effectively reduced, and the power density of the motor is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides an ultra-thin axial motor stator structure with punching press backplate which characterized in that: the coil winding device comprises a back plate (6-1), a coil (4), a bearing support (7) and bearings (8), wherein the back plate (6-1) is provided with a ring array of coil holes, the coil (4) is installed in the coil holes, the center of the back plate (6-1) is provided with a bearing support installation hole, the bearing support (7) is inserted into the bearing support installation hole in an interference fit manner, the bearing support (7) is of a hollow structure, two bearings (8) are arranged in the hollow structure of the bearing support (7), and the rotating shaft (1) is inserted into the two bearings (8); the back plate is of a hollow circular ring structure, and the inner circular surface rotating shaft of the central circular ring of the back plate is tightly matched. The hollow part of the back plate has the function of fixing a coil and is used for replacing a wire slot; the back plate (6-1) is processed in a punch forming mode.
2. The ultra-thin axial motor stator structure with the stamping back plate as claimed in claim 1, wherein the back plate (6-1) can be made of an electrolytic galvanized steel plate, a non-oriented silicon steel sheet or a common steel plate; the shape of the coil on the back plate (6-1) can be fan-shaped, diamond-shaped, trapezoid or triangle.
3. Ultra thin axial motor stator structure with stamped back plate according to claim 1, characterized in that the bearing (8) can be an oil bearing, a ball bearing or a hydraulic bearing.
4. An ultra-thin axial disc motor with a stamped back plate, comprising a stator structure and a rotor structure according to any one of claims 1 to 3, wherein the rotor structure comprises a rotating shaft (1), a rotor disc (2) and permanent magnets (3), the permanent magnets (3) are trapezoidal, and a certain gap is reserved between every two permanent magnets (3); the rotor disc (2) integrally forms the rotating shaft (1) and the permanent magnet (3) into a rotor structure through an injection molding processing technology; the stator structure and the rotor structure are matched and fixed by the rotating shaft (1) and the back plate (6-2), and the air gap can be adjusted.
5. The ultra-thin axial disc motor with stamped back plate of claim 4, wherein: still include supplementary permanent magnet (3-1), permanent magnet (3) form annular array and distribute, and is adjacent clearance department between permanent magnet (3) is equipped with a plurality of supplementary permanent magnet (3-1), permanent magnet (3) and supplementary permanent magnet (3-1) magnetize the direction and form certain contained angle, permanent magnet (3) and supplementary permanent magnet (3-1) are embedded in the rotor dish bottom, pivot (1) run through rotor dish (2) central point and rather than integrated into one piece.
6. The ultra-thin axial disc motor with stamped back plate of claim 4, wherein: the included angle between the magnetizing directions of the permanent magnet (3) and the auxiliary permanent magnet (3-1) is 45-135 degrees.
7. The ultra-thin axial motor rotor structure with stamped back plates of claim 6, wherein: the included angle of the magnetizing directions of the permanent magnet (3) and the auxiliary permanent magnet (3-1) is 45 degrees, 90 degrees or 135 degrees.
8. The ultra-thin axial disc motor with stamped back plate of claim 4, wherein: and 1-3 auxiliary permanent magnets (3-1) are arranged at the gap between every two adjacent permanent magnets (3).
9. The ultra-thin axial disc motor with stamped back plate of claim 4, wherein: the permanent magnet (3) is trapezoidal, fan-shaped or rectangular, and the auxiliary permanent magnet (3-1) is rectangular, oval or cylindrical.
10. The ultra-thin axial disc motor with stamped back plate of claim 4, wherein: the permanent magnet (3) and the auxiliary permanent magnet (3-1) are one of sintered neodymium iron boron magnet, bonded neodymium iron boron magnet, ferrite magnet, injection molding magnet or rubber magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769024.9A CN111917264A (en) | 2020-08-03 | 2020-08-03 | Ultrathin axial motor stator structure with stamping back plate and disc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769024.9A CN111917264A (en) | 2020-08-03 | 2020-08-03 | Ultrathin axial motor stator structure with stamping back plate and disc motor |
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| Publication Number | Publication Date |
|---|---|
| CN111917264A true CN111917264A (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010769024.9A Pending CN111917264A (en) | 2020-08-03 | 2020-08-03 | Ultrathin axial motor stator structure with stamping back plate and disc motor |
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| CN (1) | CN111917264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106696A (en) * | 2019-12-06 | 2020-05-05 | 广东沃顿科技有限公司 | Longitudinal mixed reluctance motor |
-
2020
- 2020-08-03 CN CN202010769024.9A patent/CN111917264A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106696A (en) * | 2019-12-06 | 2020-05-05 | 广东沃顿科技有限公司 | Longitudinal mixed reluctance motor |
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