CN212114931U - Rotor structure of surface-mounted outer rotor permanent magnet motor, rotor and motor thereof - Google Patents
Rotor structure of surface-mounted outer rotor permanent magnet motor, rotor and motor thereof Download PDFInfo
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- CN212114931U CN212114931U CN201922314037.2U CN201922314037U CN212114931U CN 212114931 U CN212114931 U CN 212114931U CN 201922314037 U CN201922314037 U CN 201922314037U CN 212114931 U CN212114931 U CN 212114931U
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Abstract
The utility model relates to a rotor structure of a surface-mounted outer rotor permanent magnet motor in the technical field of motors, which comprises a magnetic steel and a rotor; the inner surface of the rotor is provided with a magnetic steel groove, the shape of the inner surface of the magnetic steel groove is matched with that of the outer surface of the magnetic steel, and the magnetic steel is arranged on the magnetic steel groove. The utility model also provides a rotor adopts surface-mounted external rotor permanent-magnet machine's rotor structure. Compared with the prior art, the utility model, can reduce the magnet steel quantity under the prerequisite that magnetism does not reduce to change tile shape magnet steel into square magnet steel, reduce the processing cost.
Description
Technical Field
The utility model relates to the technical field of electric machines, concretely relates to surface-mounted external rotor permanent-magnet machine's rotor structure and rotor thereof.
Background
The magnetic steel mounting modes of the existing outer rotor permanent magnet motor are mainly three, and the first type is as follows: make outer back of body profile and the identical shape of circle in the rotor yoke with the magnet steel, paste directly with glue, separate the magnetism strip of making with non-magnetic conductive material between magnetic pole and the adjacent opposite magnetic pole, glue that the installation of separating the magnetic strip is some pastes on the rotor yoke, also some is to open the through-hole on separating the magnetism strip, evenly open the screw according to the motor pole number on the rotor yoke, then will separate the magnetism strip fastening on the rotor yoke with the screw, however, this kind of magnet steel mounting means can exist: after the glue is aged, the magnetic steel falls off or shifts; the second method is as follows: make outer back profile and the identical shape of rotor yoke inner circle with the magnet steel, then open the through-hole in the middle of the magnet steel, evenly open the screw according to the motor number of poles on the rotor yoke, then directly fix the magnet steel on the rotor yoke with the screw, however, this kind of magnet steel mounting means can exist: when the rotor magnet yoke drills a screw hole, indexing is troublesome, and a screw on the magnetic steel can cause inaccurate circumferential indexing or damage to the magnetic steel; the third is: the magnetic steel is made into a shape with the outline of the outer back matched with the inner circle of the rotor, and is directly and fully adhered by glue, but the magnetic steel in the mode has higher cost.
Found through prior art retrieval, chinese utility model patent number is 201621358304.6, the name is a surface mounting formula external rotor assembly of segmentation magnet steel, including the rotor shell, rotor core and magnet steel, rotor core installs in the rotor shell, set up the subsides groove that a plurality of can supply the magnet steel installation on the rotor core, be provided with draw-in groove and fastening structure of mutual interval respectively between a plurality of subsides groove, fastening structure is last to have seted up two inside open-ended steel nail holes, the magnet steel is installed in the subsides inslot and fixed with its rise through wearing to establish the steel nail downthehole steel nail of pasting, rotor core's inner circle card is equipped with the stainless steel bushing, the outer lane of stainless steel bushing is provided with the reference column that cooperatees with the draw-in groove, the reference column card is gone into to fix the stainless steel bushing. The utility model discloses an though establish stainless steel bushing through the card in rotor core can play protection motor magnet steel and prevent magnet steel wearing and tearing, nevertheless use the magnet steel more, the magnet steel cost is high at present, and the preparation technology is comparatively loaded down with trivial details simultaneously.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a surface mounting formula external rotor permanent-magnet machine's rotor structure, rotor and electrode.
According to the utility model provides a rotor structure of a surface-mounted outer rotor permanent magnet motor, which comprises magnetic steel and a rotor;
the inner surface of the rotor is provided with a magnetic steel groove, the shape of the inner surface of the magnetic steel groove is matched with that of the outer surface of the magnetic steel, and the magnetic steel is arranged on the magnetic steel groove.
In some embodiments, the magnetic steel is attached to the inner surface of the steel groove in a fitting manner.
In some embodiments, the magnetic steel is fixed on the inner surface of the steel groove by glue bonding.
In some embodiments, the rotor inner surface includes a plurality of pairs of the magnetic steel slots, and the plurality of pairs of the magnetic steel slots form a polygonal structure of the rotor inner surface.
In some embodiments, the magnetic steel is rectangular.
The utility model also provides a rotor adopts surface mounted external rotor permanent-magnet machine's rotor structure.
The utility model also provides a motor, include the rotor.
Compared with the prior art, the utility model discloses following beneficial effect has:
compared with the prior art, the utility model, can reduce the magnet steel quantity under the prerequisite that magnetism does not reduce to change tile shape magnet steel into square magnet steel, reduce the processing cost.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the magnetic steel structure of the present invention;
fig. 3 is a schematic view of the rotor structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-3, the rotor structure of a surface-mounted outer rotor permanent magnet motor according to the present invention includes a magnetic steel 1 and a rotor 2;
the inner surface of the rotor 2 is provided with a magnetic steel groove 21, the shape of the inner surface of the magnetic steel groove 21 is matched with that of the outer surface of the magnetic steel 1, and the magnetic steel 1 is arranged on the magnetic steel groove 21.
Preferably, the magnetic steel 1 is attached to the inner surface of the steel groove 21 in a fitting manner; meanwhile, the magnetic steel 1 is fixed on the inner surface of the steel groove 21 in a glue bonding mode.
Further, the inner surface of the rotor 2 comprises a plurality of pairs of the magnetic steel grooves 21, and the plurality of pairs of the magnetic steel grooves 21 form the inner surface of the rotor 2 with a polygonal structure. Preferably, the magnetic steel 1 is rectangular.
For making outer back of the body profile and the identical structure of circle in the rotor with the magnet steel, adopt the utility model discloses a structure can reduce the magnet steel quantity under the prerequisite that magnetism does not reduce to change tile shape magnet steel into square magnet steel, reduce the processing cost.
Example 2
As shown in fig. 1-3, the present invention further provides a rotor, the main structure of the rotor adopts the rotor structure of the surface-mounted external rotor permanent magnet motor, and the corresponding structural components and parts thereof have been correspondingly illustrated in embodiment 1 and are not described herein again.
Additionally, the utility model also provides a motor, including adopting in this embodiment 2 the rotor structure.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (4)
1. A rotor structure of a surface-mounted outer rotor permanent magnet motor is characterized by comprising magnetic steel (1) and a rotor (2);
the inner surface of the rotor (2) is provided with a magnetic steel groove (21), the inner surface of the magnetic steel groove (21) is matched with the outer surface of the magnetic steel (1) in shape, and the magnetic steel (1) is arranged on the magnetic steel groove (21);
the magnetic steel (1) is connected to the inner surface of the steel groove (21) in a fitting manner;
the magnetic steel (1) is fixed on the inner surface of the steel groove (21) in a glue bonding mode;
the inner surface of the rotor (2) comprises a plurality of pairs of magnetic steel grooves (21), and the plurality of pairs of magnetic steel grooves (21) form the inner surface of the rotor (2) with a polygonal structure.
2. The rotor structure of a surface-mounted external rotor permanent magnet motor according to claim 1, wherein the magnetic steel (1) is rectangular.
3. A rotor comprising a rotor structure using the surface-mount outer rotor permanent magnet motor according to any one of claims 1 to 2.
4. An electrical machine comprising a rotor according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314037.2U CN212114931U (en) | 2019-12-20 | 2019-12-20 | Rotor structure of surface-mounted outer rotor permanent magnet motor, rotor and motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314037.2U CN212114931U (en) | 2019-12-20 | 2019-12-20 | Rotor structure of surface-mounted outer rotor permanent magnet motor, rotor and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212114931U true CN212114931U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922314037.2U Active CN212114931U (en) | 2019-12-20 | 2019-12-20 | Rotor structure of surface-mounted outer rotor permanent magnet motor, rotor and motor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212114931U (en) |
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2019
- 2019-12-20 CN CN201922314037.2U patent/CN212114931U/en active Active
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