CN216564667U - Disk type motor based on modularized stator tooth yoke structure - Google Patents
Disk type motor based on modularized stator tooth yoke structure Download PDFInfo
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- CN216564667U CN216564667U CN202123125066.8U CN202123125066U CN216564667U CN 216564667 U CN216564667 U CN 216564667U CN 202123125066 U CN202123125066 U CN 202123125066U CN 216564667 U CN216564667 U CN 216564667U
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- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 27
- 238000010030 laminating Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a disk type motor based on a modularized stator tooth yoke structure, and belongs to the technical field of disk type motors. The motor comprises a motor rotor and a motor stator which are arranged on a motor shaft, wherein the motor stator comprises a stator shell, stator teeth, a stator yoke and a coil; the stator teeth are of a modular structure formed by laminating a plurality of silicon steel sheets along the radial direction of the motor shaft, and the stator yoke is of a modular structure formed by laminating a plurality of silicon steel sheets along the axial direction of the motor shaft; the stator teeth and the stator yokes are arranged in a staggered manner along the circumferential direction and are arranged in a circular stator shell; the coil is arranged on the stator teeth. The rotor adopts a structure that permanent magnets are directly attached to a rotor shell. When magnetic lines of force axially enter the stator teeth, eddy current loss cannot be generated on the axially laminated stator yoke part, the modularized stator teeth and the modularized stator yoke have the advantages of easiness in cutting, high efficiency in processing, simple structure and convenience in winding, and the processing difficulty and cost of the disc motor are greatly reduced.
Description
Technical Field
The utility model relates to the technical field of disk motors, in particular to a disk motor based on a modularized stator tooth yoke structure.
Background
The disc type motor has the characteristics of high diameter-length ratio, high torque density and high operation efficiency, is similar to a flat disc in shape, is particularly suitable for occasions with strict limitation on installation space, and is widely applied to many fields. The stator of the disk motor is adhered with a plurality of fan-shaped or cylindrical permanent magnets which are alternately arranged according to N, S polarities and fixed on the end cover at one side or two sides of the armature. The permanent magnets are magnetized axially to produce a multi-polar axial magnetic field in the air gap plane. The effective conductors of the armature winding are radially distributed in space.
The existing processing mode of a disc type motor stator is generally that a silicon steel sheet strip is wound and welded to form a stator iron core blank; fixing the stator core blank on an indexing device, and performing linear cutting processing on the stator disc side to form a groove shape; after the corresponding stator groove shape is processed for one time, adjusting the indexing device by one tooth pitch to process the next groove shape; and repeating the steps to process in sequence until all the stator slots on the stator iron core are processed. The conventional disc type motor processing method is difficult to position and process a datum plane, and the wire cutting processing is difficult and expensive; and the stator slots need to be processed in sequence, so that the efficiency is low.
Disclosure of Invention
Aiming at the defects of the existing disc type motor processing method, the utility model provides a disc type motor based on a modularized stator tooth yoke structure, silicon steel sheet strips are laminated and then subjected to planar wire cutting, and a motor stator tooth module and a stator yoke module are obtained. Meanwhile, the stator yoke module and the stator tooth module are assembled and then fixed on the stator shell, so that the structure is simple, the processing is convenient and efficient, and the eddy current loss is low.
The utility model is realized by the following technical scheme:
a disk motor based on a modular stator tooth yoke structure comprises a motor rotor and a motor stator which are arranged on a motor shaft, wherein the motor rotor is fixedly connected with the motor shaft, and the motor stator is in rolling connection with the motor shaft; the motor stator is characterized by comprising a stator shell, stator teeth, a stator yoke and a coil;
the stator teeth are of a modular structure formed by laminating a plurality of silicon steel sheets along the radial direction of the motor shaft, and the stator yoke is of a modular structure formed by laminating a plurality of silicon steel sheets along the axial direction of the motor shaft; the stator teeth and the stator yokes are arranged in a staggered manner along the circumferential direction and are arranged in a circular stator shell; the coil is arranged on the stator teeth;
the motor stator is arranged on the motor shaft through a bearing assembly.
Preferably, each silicon steel sheet in the stator tooth is of a T-shaped structure, and each silicon steel sheet in the stator yoke is of an isosceles trapezoid structure.
Preferably, the height of the isosceles trapezoid of each silicon steel sheet in the stator yoke is equal to the radial superposed thickness of all the silicon steel sheets in the stator teeth.
Preferably, the stator teeth and the stator yoke are provided with first assembling holes, and the stator shell is provided with second assembling holes; the first assembly hole and the second assembly hole are connected through a bolt.
Preferably, the motor rotor comprises a rotor outer frame, a rotor back iron and a permanent magnet, the rotor outer frame is fixed on the motor shaft, and the rotor back iron and the permanent magnet are fixedly connected together and embedded in the rotor outer frame.
Preferably, the bearing assembly comprises a bearing chamber and a pair of deep groove ball bearings, the bearing chamber is in a sleeve shape, one end of the bearing chamber is provided with a mounting ring, two ends of the inner wall of the bearing chamber are provided with annular positioning grooves, and the groove width is equal to the width of the deep groove ball bearings.
Preferably, the deep groove ball bearing is installed on a motor shaft, and the bearing chamber is fixedly connected with a stator shell in a motor stator through an installation ring.
In the utility model, the single modules of the stator teeth and the single modules of the stator yoke are staggered along the circumferential direction and are directly fixed on the stator shell, and when magnetic lines of force axially enter the stator teeth, eddy current loss cannot be generated on the axially laminated stator yoke.
Compared with the prior art, the stator of the disc type motor is formed by laminating silicon steel sheets and then performing planar linear cutting to obtain the stator tooth module and the stator yoke module of the motor, and fixing the stator tooth module and the stator yoke module on the stator shell after assembling, and has the advantages of simple structure, high processing efficiency, convenience in winding and low eddy current loss.
Drawings
Fig. 1 is a schematic overall structure diagram of a disk motor based on a modular stator tooth yoke structure according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a disk motor based on a modular stator tooth yoke structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a modular stator tooth configuration according to an embodiment of the present invention;
FIG. 4 is a schematic view of a modular stator yoke configuration shown in accordance with an embodiment of the present invention;
wherein: 1-rotor outer frame, 2-rotor back iron, 3-permanent magnet, 4-stator shell, 5-stator teeth, 6-stator yoke, 7-coil, 8-bearing chamber, 9-deep groove ball bearing and 10-motor shaft.
Detailed Description
The following embodiments of the present invention are described in detail with reference to the accompanying drawings, and the embodiments and specific operations of the embodiments are provided on the premise of the technical solution of the present invention, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 to 2, the disk motor based on the modular stator tooth yoke structure disclosed in the present embodiment includes a rotor outer frame 1, a rotor back iron 2, a permanent magnet 3, a stator housing 4, stator teeth 5, a stator yoke 6, a coil 7, a bearing chamber 8, a deep groove ball bearing 9, and a motor shaft 10.
The rotor outer frame 1, the rotor back iron 2 and the permanent magnet 3 are coaxially arranged and fixed on a motor shaft 10 to form a motor rotor. The rotor outer frame 1 is fixed with one end of a motor shaft 10, and the rotor back iron 2 and the permanent magnet 3 are fixedly connected together and embedded into the rotor outer frame 1; in this embodiment, first, the rotor back iron 2 is in interference fit with the rotor outer frame 1, so that the rotor back iron 2 is completely fixed in the rotor outer frame 1, and then the permanent magnet 3 is adhered to the end face of the rotor back iron 2. The rotor permanent magnet 3 is magnetized axially to drive the rotor back iron 2 and the rotor outer frame 1 to rotate, so that the motor shaft 10 is driven to rotate together, and power is output to an external load.
The stator teeth 5 and the stator yokes 6 are alternately arranged along the circumferential direction and are arranged on the stator shell 4 with the assembly holes, and the coils 7 are arranged on the stator teeth 5 to form the stator of the motor. The motor stator is installed on the motor shaft through a bearing assembly.
In order to control the air gap distance between the permanent magnets 3 in the rotor of the machine and the coils 7 in the stator of the machine, a step is provided on the machine shaft, by means of which the bearing assembly is positioned.
In this embodiment, the bearing assembly includes a bearing chamber 8 and a pair of deep groove ball bearings 9, the bearing chamber 8 is in a sleeve shape and has a mounting ring at one end, annular positioning grooves are formed at two ends of the inner wall of the bearing chamber 8, and the groove width is equal to the width of the deep groove ball bearings 9. The pair of deep groove ball bearings 9 are arranged in annular positioning grooves at two ends of the inner wall of the bearing chamber 8, and the bearing chamber 8 is in rolling contact with the deep groove ball bearings 9. The motor stator is sleeved on the bearing assembly, namely the outer wall of the bearing chamber 8, the bearing chamber 8 and the stator shell 4 are fixed together through a mounting ring at the end part of the bearing chamber 8, the assembled bearing assembly and the motor stator are sleeved on the motor shaft, one deep groove ball bearing 9 in the bearing assembly is axially positioned through a step part on the motor shaft and a positioning groove of the bearing chamber 8, and the other deep groove ball bearing 9 is axially positioned through a positioning groove of the bearing chamber 8. When the motor works, the motor stator is fixed, the air gap distance between the motor stator and the motor rotor is kept unchanged, the motor can be realized by designing a reasonable motor shell, and the utility model is not particularly limited.
In one embodiment of the present invention, 12 modularized stator teeth 5 (see fig. 3) and a stator yoke 6 (see fig. 4) are assembled on the stator casing 4, the stator teeth 5 are formed by radially laminating silicon steel sheets, and each silicon steel sheet has a rectangular T-shaped structure with external teeth; the stator yoke 6 is formed by silicon steel sheets in an axial laminating mode, each silicon steel sheet is of an isosceles trapezoid structure, and the height of each trapezoid is equal to the thickness of the silicon steel sheets in the stator teeth 5 in a radial laminating mode. As shown in fig. 3, 11 layers of T-shaped silicon steel sheets are laminated in the radial direction of the motor shaft to form modular stator teeth, as shown in fig. 4, 12 layers of isosceles trapezoid silicon steel sheets are laminated in the axial direction of the motor shaft to form modular stator yokes, as shown in fig. 2, 12 modular stator teeth 5 and 12 modular stator yokes 6 are alternately assembled on the stator housing to form a circular motor stator.
In the implementation process of the utility model, silicon steel sheet strips are laminated and then subjected to planar linear cutting processing to obtain modularized stator teeth 5 and stator yokes 6, and assembling holes are processed and correspond to the assembling holes on the stator shell 4. The stator teeth 5 modules and the stator yoke 6 modules are arranged in a staggered mode along the circumferential direction and are fixed on the circular stator shell 4 through bolts after assembly.
When the motor works, the rotor permanent magnet 3 is axially magnetized, and magnetic flux enters the silicon steel sheets of the stator teeth 5 in parallel, so that eddy current loss is reduced. In the stator yoke 6, the magnetic flux direction is the circumferential direction, and is parallel to the silicon steel sheets of the stator yoke 6, so that the stator yoke 6 which is laminated in the axial direction cannot generate eddy current loss.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, but various changes and modifications within the scope of the claims by those skilled in the art are also included in the scope of the present invention.
Claims (7)
1. A disk type motor based on a modularized stator tooth yoke structure comprises a motor rotor and a motor stator which are arranged on a motor shaft (10), wherein the motor rotor is fixedly connected with the motor shaft (10), and the motor stator is in rolling connection with the motor shaft (10); the motor stator is characterized by comprising a stator shell (4), stator teeth (5), a stator yoke (6) and a coil (7);
the stator teeth (5) are of a modular structure formed by laminating a plurality of silicon steel sheets along the radial direction of a motor shaft, and the stator yoke (6) is of a modular structure formed by laminating a plurality of silicon steel sheets along the axial direction of the motor shaft; the stator teeth (5) and the stator yokes (6) are arranged in a staggered manner in the circumferential direction in the circular stator shell (4); the coil (7) is arranged on the stator teeth (5);
the motor stator is arranged on the motor shaft through a bearing assembly.
2. The disk motor based on the modular stator tooth yoke structure as claimed in claim 1, characterized in that each silicon steel sheet in the stator teeth (5) is in a T-shaped structure, and each silicon steel sheet in the stator yoke (6) is in an isosceles trapezoid structure.
3. A disk motor based on modular stator tooth yoke structure according to claim 2, characterized in that the height of the isosceles trapezoid of each silicon steel sheet in the stator yoke (6) is equal to the radial overlapping thickness of all the silicon steel sheets in the stator teeth (5).
4. A disk motor based on modular stator tooth yoke structure according to claim 1 or 2, characterized in that the stator teeth (5) and the stator yoke (6) are provided with first assembly holes, and the stator shell (4) is provided with second assembly holes; the first assembly hole and the second assembly hole are connected through a bolt.
5. The disc motor based on the modular stator tooth yoke structure is characterized in that the motor rotor comprises a rotor outer frame (1), a rotor back iron (2) and permanent magnets (3), the rotor outer frame (1) is fixed on a motor shaft (10), and the rotor back iron (2) and the permanent magnets (3) are fixedly connected together and embedded in the rotor outer frame (1).
6. The disc motor based on the modular stator tooth yoke structure is characterized in that the bearing assembly comprises a bearing chamber (8) and a pair of deep groove ball bearings (9), the bearing chamber (8) is sleeve-shaped, a mounting ring is arranged at one end of the bearing chamber, annular positioning grooves are formed in two ends of the inner wall of the bearing chamber (8), and the groove width is equal to the width of the deep groove ball bearings (9).
7. A disc motor based on a modular stator yoke construction according to claim 6 characterized in that the deep groove ball bearing (9) is mounted on the motor shaft (10) and the bearing housing (8) is attached to the stator housing (4) of the motor stator by means of a mounting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123125066.8U CN216564667U (en) | 2021-12-13 | 2021-12-13 | Disk type motor based on modularized stator tooth yoke structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123125066.8U CN216564667U (en) | 2021-12-13 | 2021-12-13 | Disk type motor based on modularized stator tooth yoke structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216564667U true CN216564667U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123125066.8U Active CN216564667U (en) | 2021-12-13 | 2021-12-13 | Disk type motor based on modularized stator tooth yoke structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216564667U (en) |
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2021
- 2021-12-13 CN CN202123125066.8U patent/CN216564667U/en active Active
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