CN218569924U - Permanent magnet motor - Google Patents
Permanent magnet motor Download PDFInfo
- Publication number
- CN218569924U CN218569924U CN202222371184.5U CN202222371184U CN218569924U CN 218569924 U CN218569924 U CN 218569924U CN 202222371184 U CN202222371184 U CN 202222371184U CN 218569924 U CN218569924 U CN 218569924U
- Authority
- CN
- China
- Prior art keywords
- ring
- mounting
- iron
- permanent magnet
- iron ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The application provides a permanent-magnet machine, permanent-magnet machine includes: an iron ring; a rim fixed to an outer ring of the iron ring, the rim including a contact portion fixed to the iron ring; and the two mounting rings are fixed on the outer ring of the iron ring and positioned on two sides of the contact part, and are provided with screw holes for mounting the end cover. The outer ring fixed on the iron ring is arranged on the mounting ring, the mounting ring is positioned on two sides of the contact part, the screw holes used for mounting the end cover are formed in the mounting ring, the end cover can be mounted on the mounting ring, the iron ring does not need to be driven into a screw to fix the end cover, the thickness of the iron ring can be further reduced, the inner diameter of the iron ring can be further increased, the diameter of the motor rotor and the diameter of the stator can be redesigned, and the torque of the motor is further improved.
Description
Technical Field
The application relates to the technical field of motor equipment, in particular to a permanent magnet motor.
Background
At present, the permanent magnet motor of the domestic two-wheel vehicle is fixed by screws after the end cover is buckled into the inner side of the iron ring, therefore, the iron ring needs to keep certain thickness to install the screws, the thickness of the iron ring is limited and cannot be further reduced, the size of the rim of the permanent magnet motor with the same specification and the outer diameter of the iron ring are limited, the inner diameter of the iron ring is limited, the diameter of a motor rotor and the diameter of a stator are limited, and the torque of the motor cannot be further improved.
Therefore, the end cover mounting structure of the permanent magnet motor is improved to further improve the inner diameter of the iron ring, so that the torque of the motor is increased.
SUMMERY OF THE UTILITY MODEL
An it is not enough to above-mentioned prior art, the utility model aims to provide a permanent-magnet machine makes the improvement to its inside structure to further promote the internal diameter of iron ring, thereby the torque of increase motor.
According to the utility model discloses an embodiment provides first scheme and is: a permanent magnet electric machine, comprising:
an iron ring;
a rim fixed to an outer ring of the iron ring, the rim including a contact portion fixed to the iron ring;
and the two mounting rings are fixed on the outer ring of the iron ring and positioned on two sides of the contact part, and the mounting rings are provided with screw holes which are used for mounting the end cover.
Preferably, the permanent magnet motor further comprises:
and the laser welding part is positioned between the iron ring and the mounting ring and is formed on two sides of the iron ring.
Preferably, the rim further comprises:
an outer ring portion, the mounting ring being located between the outer ring portion and the iron ring;
a connection side portion connecting the outer ring portion and the contact portion.
Preferably, the mounting ring is in contact with the connecting side portion, wherein a portion of the mounting ring in contact with the connecting side portion is a curved line.
Preferably, the mounting ring is in contact with the connecting side portion, wherein a portion of the mounting ring in contact with the connecting side portion is a face.
Preferably, a plurality of the screw holes are arranged in a circumferential direction at a side portion of the mounting ring.
Preferably, the inner ring of the mounting ring is attached to the outer ring of the iron ring.
Preferably, the iron ring is further provided with:
the mounting grooves are formed in two sides of the outer ring of the iron ring, and the mounting ring is clamped in the mounting grooves.
Preferably, the mounting groove is composed of a side groove wall and an outer ring wall, wherein the inner ring of the mounting ring is attached to the outer ring wall, and the side end of the mounting ring is attached to the side groove wall.
Preferably, the material of the mounting ring is iron.
The utility model discloses following beneficial effect has:
the outer ring fixed on the iron ring is arranged on the mounting ring, the mounting ring is positioned on two sides of the contact part, the screw holes used for mounting the end cover are formed in the mounting ring, the end cover can be mounted on the mounting ring, the iron ring does not need to be driven into a screw to fix the end cover, the thickness of the iron ring can be further reduced, the inner diameter of the iron ring can be further increased, the diameter of the motor rotor and the diameter of the stator can be redesigned, and the torque of the motor is further improved.
Drawings
Fig. 1 is a perspective view of an improved structure of a permanent magnet motor according to an embodiment of the present invention;
fig. 2 is a schematic view of an improved structure of a permanent magnet motor according to an embodiment of the present invention, viewed from the side of an iron ring;
fig. 3 is a schematic cross-sectional structure view of a mounting ring, an iron ring and a rim according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mounting groove on an iron ring according to an embodiment of the present invention.
Reference numerals: 1. an iron ring; 11. laser welding the part; 12. mounting grooves; 13. side groove walls; 14. an outer annular wall; 2. a rim; 21. a contact portion; 22. connecting the side parts; 23. an outer ring portion; 3. a mounting ring; 31. a screw hole;
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left"
The references to "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, are not essential to the technology, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
Referring to fig. 1 to 4, an embodiment of the present invention provides a permanent magnet motor, including: iron ring 1, rim 2 and mounting ring 3. Wherein, rim 2 is fixed in the outer lane of iron ring 1, and rim 2 includes the contact site 21 fixed with iron ring 1, and two collars 3 are fixed in the outer lane of iron ring 1, and two collars 3 are located the both sides of contact site 21 respectively, and collar 3 is equipped with screw 31, and screw 31 is used for the installation end cover.
In this embodiment, the outer ring of the iron ring 1 is provided with the mounting ring 3 with the screw hole 31, so that the end cover is mounted on the side surface of the iron ring 1, and then the screw can be driven into the screw hole 31 of the mounting ring 3 through the end cover to fix the end cover, so that the iron ring 1 does not need to keep a certain thickness to mount the screw, the iron ring 1 can be further thinned, namely, the inner diameter of the iron ring 1 is further increased, the diameters of a rotor and a stator of the motor can be redesigned, and the torque of the motor is further improved.
In a specific embodiment, for example, in a 14-inch permanent magnet motor, the maximum size limit of the end cover seam allowance, that is, the limit size of the inner diameter of the iron ring 1, can only be 215 mm, at this time, the maximum torque of the motor is generally about 45 n.m., after structural improvement, the inner diameter of the iron ring 1 can further reach 220 mm, and after the diameters of the rotor and the stator of the motor are redesigned, the maximum torque of the motor can be increased by 10% or even more.
In a possible embodiment, referring to fig. 2 and 3, the permanent magnet motor further comprises a laser welding part 11, the laser welding part 11 is formed by laser welding, the laser welding part 11 is located between the iron ring 1 and the mounting ring 3, and the laser welding part 11 is formed on both sides of the iron ring 1, and in this embodiment, the laser welding part 11 fixes the iron ring 1 and the mounting ring 3 together.
In a particular embodiment, the rim 2 further comprises an outer annular portion 23 and a connecting side portion 22. Wherein, the connecting side portion 22 is located at both sides of the contact portion 21 and connects the outer ring portion 23 and the contact portion 21, and the mounting ring 3 is located between the outer ring portion 23 and the iron ring 1.
In one possible embodiment, to make the installation of the mounting ring 3 more stable, the mounting ring 3 contacts the connecting side 22 at a corner near the connecting side 22, wherein the contact portion of the mounting ring 3 and the connecting side 22 is a curved line.
In one possible embodiment, to make the installation of the mounting ring 3 more stable, the mounting ring 3 is in contact with the connecting side 22 at an end close to the connecting side 22, wherein the portion of the mounting ring 3 in contact with the connecting side 22 is a face. For example, a corner of the mounting ring 3 near the connecting side 22 may be chamfered to engage the connecting side 22, or the angle of the connecting side 22 may drive a side of the mounting ring 3 to engage directly.
In a specific embodiment, referring to fig. 1 and 2, a plurality of screw holes 31 are arranged in a circumferential direction at a side of the mounting ring 3, so that the end cap can be stably mounted to the mounting ring 3 by using a plurality of screws.
In a possible embodiment, the inner ring of the mounting ring 3 directly engages the outer ring of the iron ring 1.
In a possible embodiment, in order to allow the mounting ring 3 to be more firmly mounted to the outer ring of the iron ring 1 and also to facilitate the mounting of the end cap, the iron ring 1 is further provided with a mounting groove 12.
Specifically, referring to fig. 4, the mounting grooves 12 are disposed on two sides of the outer ring of the iron ring 1, the mounting ring 3 is clamped in the mounting grooves 12, the mounting grooves 12 limit the mounting ring 3 to continue to move toward the position close to the connecting side portion 22, so that the mounting is more stable, and the mounting ring 3 cannot slide inwards when the end cover is mounted, thereby facilitating the mounting of the end cover.
In a more specific embodiment, referring to fig. 4, the mounting groove 12 is formed by a side groove wall 13 and an outer annular wall 14. In a specific fit, the inner ring of the mounting ring 3 is attached to the outer annular wall 14, and the side end of the mounting ring 3 is attached to the side groove wall 13.
In a preferred embodiment, the material of the mounting ring 3 is preferably iron.
Borrow this, be fixed in the outer lane of iron ring 1 and be located the collar 3 of the both sides of contact site 21 through the setting, and set up the screw 31 that is used for the installation end cover on collar 3, make the end cover can install on collar 3, iron ring 1 need not to squeeze into the screw and goes the fixed end cover, its thickness just also can further reduce, so can further increase iron ring 1's internal diameter, the diameter that makes motor rotor and stator can redesign, thereby the moment of torsion that makes the motor further promotes.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A permanent magnet electric machine, comprising:
an iron ring;
a rim fixed to an outer ring of the iron ring, the rim including a contact portion fixed to the iron ring;
and the two mounting rings are fixed on the outer ring of the iron ring and positioned on two sides of the contact part, and the mounting rings are provided with screw holes which are used for mounting the end cover.
2. The permanent magnet electric machine of claim 1, further comprising:
and the laser welding part is positioned between the iron ring and the mounting ring and is formed on two sides of the iron ring.
3. The permanent magnet electric machine of claim 1, wherein the rim further comprises:
an outer ring portion, the mounting ring being located between the outer ring portion and the iron ring;
a connection side portion connecting the outer ring portion and the contact portion.
4. The permanent magnet electric machine according to claim 3, wherein the mounting ring is in contact with the connection side, wherein the portion of the mounting ring in contact with the connection side is a curved line.
5. The permanent magnet electric machine according to claim 3, wherein the mounting ring is in contact with the connection side, wherein a portion of the mounting ring in contact with the connection side is a face.
6. The permanent magnet electric machine of claim 1, wherein a plurality of said screw holes are arranged circumferentially at a side of said mounting ring.
7. The permanent magnet electric machine of claim 1 wherein the inner ring of the mounting ring is engaged with the outer ring of the iron ring.
8. The permanent magnet electric machine according to claim 1, characterized in that the iron ring is further provided with:
the mounting groove is arranged on two sides of the outer ring of the iron ring, and the mounting ring is clamped in the mounting groove.
9. The permanent magnet electric machine of claim 8, wherein the mounting groove is formed by a side groove wall and an outer ring wall, wherein the inner ring of the mounting ring abuts the outer ring wall and the side end of the mounting ring abuts the side groove wall.
10. The permanent magnet electric machine according to claim 1, wherein the mounting ring is made of iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222371184.5U CN218569924U (en) | 2022-09-07 | 2022-09-07 | Permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222371184.5U CN218569924U (en) | 2022-09-07 | 2022-09-07 | Permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218569924U true CN218569924U (en) | 2023-03-03 |
Family
ID=85311721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222371184.5U Active CN218569924U (en) | 2022-09-07 | 2022-09-07 | Permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218569924U (en) |
-
2022
- 2022-09-07 CN CN202222371184.5U patent/CN218569924U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2705554B1 (en) | Battery cover assembly and battery having the same | |
| CN107528418A (en) | A kind of steering wheel | |
| CN114824589A (en) | Battery cover plate and battery | |
| CN218569924U (en) | Permanent magnet motor | |
| CN104638820A (en) | Casing and actuator provided with same | |
| US20050264125A1 (en) | Rotor of motor | |
| US20220216745A1 (en) | Motor and assembly structure thereof | |
| CN210806911U (en) | Drainage motor and drainage pump comprising same | |
| CN213578063U (en) | Heating assembly | |
| CN216407200U (en) | Rotating ring reinforcing structure and magnetic pump | |
| CN212412904U (en) | Motor outer barrel, motor and sewage submersible pump | |
| CN217282391U (en) | Novel stator-rotor structure | |
| CN220544760U (en) | Oblique pole rotor assembly with adjustable axial pretightening force | |
| CN214887758U (en) | Centrifugal water pump and water-cooling permanent magnet motor share wall cover device | |
| CN111371256A (en) | Starting and power generation integrated machine | |
| CN216252396U (en) | Motor and electric equipment | |
| CN216390612U (en) | Stator punching sheet monomer structure, stator punching sheet and iron core combined structure | |
| CN215580586U (en) | Outer rotor and inner stator assembly of motor | |
| CN216530821U (en) | Flange structure of axial magnetic motor | |
| CN216086320U (en) | End cover and motor using same | |
| CN212304974U (en) | Front end cover for connecting generator and gasoline engine | |
| CN217873454U (en) | Centrifugal pump installation fixed knot constructs | |
| CN219221002U (en) | Locknut, fan system and range hood | |
| CN212930434U (en) | Heating assembly | |
| CN210404910U (en) | End cover and plastic package motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |