CN218733582U - External rotor brushless motor with novel structure - Google Patents
External rotor brushless motor with novel structure Download PDFInfo
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- CN218733582U CN218733582U CN202222866617.4U CN202222866617U CN218733582U CN 218733582 U CN218733582 U CN 218733582U CN 202222866617 U CN202222866617 U CN 202222866617U CN 218733582 U CN218733582 U CN 218733582U
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- stator
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- rotating shaft
- end cover
- rotor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses an external rotor brushless motor with a novel structure, which comprises an external rotor, a rotating shaft and an internal stator; the inner stator comprises a rear end cover, a stator seat, a winding stator and a first screw; the outer rotor comprises a rotor cup, magnetic steel and a front end cover; the left end of the rotating shaft is connected with the rear end cover, and the right end of the rotating shaft penetrates through the front end cover; the rear end cover is fixedly connected with the stator seat through a first screw, a first bearing is arranged between the left end of the stator seat and the rotating shaft, and a second bearing is arranged between the right end of the stator seat and the rotating shaft; the brushless motor also comprises an adapter plate and a third bearing, wherein the adapter plate is arranged between the stator seat and the rotor cup, and the rotor cup is fixedly connected with the adapter plate through a second screw; and a third bearing is arranged between the adapter plate and the stator seat. The utility model discloses adopted on the basis of original structure to increase two parts of a bearing and keysets, turned into the structure of both ends supporting with original cantilever beam structure, can effectively improve motor operation stationarity.
Description
Technical Field
The utility model discloses a novel outer rotor brushless motor of structure belongs to motor technical field.
Background
As shown in figure 1, the external rotor motor with a conventional structure adopts a cantilever beam structure, the length-diameter ratio of the motor is greater than 1.4, and the internal space is compact, so that the produced motor is not stable in operation, and even the stator and the rotor of the motor are rubbed with each other, so that the motor cannot work normally.
Disclosure of Invention
In order to overcome the defects, the utility model discloses an external rotor brushless motor with a novel structure. The cantilever beam structure is converted into a stable structure supported at two ends by adopting a scheme of adding one bearing, so that the problems are solved.
The technical scheme of the utility model as follows:
an outer rotor brushless motor with a novel structure comprises an outer rotor, a rotating shaft and an inner stator; the inner stator comprises a rear end cover, a stator seat, a winding stator and a first screw; the outer rotor comprises a rotor cup, magnetic steel and a front end cover;
the left end of the rotating shaft is connected with the rear end cover, and the right end of the rotating shaft penetrates through the front end cover; the rear end cover is fixedly connected with the stator seat through a first screw, a first bearing is arranged between the left end of the stator seat and the rotating shaft, and a second bearing is arranged between the right end of the stator seat and the rotating shaft; a winding stator is arranged on the outer side of the stator seat; the right end of the rotor cup is connected with the front end cover, magnetic steel is installed inside the rotor cup, the magnetic steel is arranged opposite to the winding stator, and a gap is reserved between the magnetic steel and the winding stator;
the brushless motor also comprises an adapter plate and a third bearing, wherein the adapter plate is arranged between the stator seat and the rotor cup, and the rotor cup is fixedly connected with the adapter plate through a second screw; the adapter plate is connected with the stator seat through a third bearing.
Preferably, the first bearing and the second bearing are in interference fit with the rotating shaft.
The utility model has the advantages that:
the utility model discloses adopted on the basis of original structure to increase two parts of a bearing and keysets, turned into the structure of both ends supporting with original cantilever beam structure, can effectively improve motor operation stationarity.
Drawings
FIG. 1 is a view showing a structure of a conventional motor;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 2, an outer rotor brushless motor with a novel structure comprises an outer rotor, a rotating shaft 10 and an inner stator; the inner stator comprises a rear end cover 1, a stator seat 11, a winding stator 7 and a first screw 2; the outer rotor comprises a rotor cup 5, magnetic steel 6 and a front end cover 8;
the left end of the rotating shaft 10 is connected with the rear end cover 1, and the right end of the rotating shaft penetrates through the front end cover 8; the rear end cover 1 is fixedly connected with a stator seat 11 through a first screw 2, a first bearing 3 is arranged between the left end of the stator seat 11 and a rotating shaft 10, and a second bearing 9 is arranged between the right end of the stator seat and the rotating shaft 10; a winding stator 7 is arranged on the outer side of the stator seat 11; the right end of the rotor cup 5 is connected with a front end cover 8, a magnetic steel 6 is installed inside the rotor cup, the magnetic steel 6 is arranged opposite to the winding stator 7, and a gap is reserved between the magnetic steel 6 and the winding stator;
the brushless motor further comprises an adapter plate 13 and a third bearing 12, wherein the adapter plate 13 is arranged between the stator seat 11 and the rotor cup 5, and the rotor cup 5 is fixedly connected with the adapter plate 13 through a second screw 4; the adapter plate 13 is connected with the stator seat 11 through a third bearing 12.
Preferably, the first bearing 3 and the second bearing 9 are in interference fit with the rotating shaft 10.
The foregoing 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 variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (2)
1. An outer rotor brushless motor with a novel structure comprises an outer rotor, a rotating shaft (10) and an inner stator; the inner stator is characterized by comprising a rear end cover (1), a stator seat (11), a winding stator (7) and a first screw (2); the outer rotor comprises a rotor cup (5), magnetic steel (6) and a front end cover (8);
the left end of the rotating shaft (10) is connected with the rear end cover (1), and the right end of the rotating shaft penetrates through the front end cover (8); the rear end cover (1) is fixedly connected with a stator seat (11) through a first screw (2), a first bearing (3) is arranged between the left end of the stator seat (11) and the rotating shaft (10), and a second bearing (9) is arranged between the right end of the stator seat (11) and the rotating shaft (10); a winding stator (7) is arranged on the outer side of the stator seat (11); the right end of the rotor cup (5) is connected with the front end cover (8), magnetic steel (6) is installed inside the rotor cup, the magnetic steel (6) is arranged opposite to the winding stator (7), and a gap is reserved between the magnetic steel and the winding stator;
the brushless motor further comprises an adapter plate (13) and a third bearing (12), the adapter plate (13) is arranged between the stator seat (11) and the rotor cup (5), and the rotor cup (5) is fixedly connected with the adapter plate (13) through a second screw (4); the adapter plate (13) is connected with the stator seat (11) through a third bearing (12).
2. The external rotor brushless motor with a novel structure according to claim 1, wherein the first bearing (3) and the second bearing (9) are in interference fit with the rotating shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222866617.4U CN218733582U (en) | 2022-10-30 | 2022-10-30 | External rotor brushless motor with novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222866617.4U CN218733582U (en) | 2022-10-30 | 2022-10-30 | External rotor brushless motor with novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218733582U true CN218733582U (en) | 2023-03-24 |
Family
ID=85594639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222866617.4U Active CN218733582U (en) | 2022-10-30 | 2022-10-30 | External rotor brushless motor with novel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218733582U (en) |
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2022
- 2022-10-30 CN CN202222866617.4U patent/CN218733582U/en active Active
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