CN216851544U - Large-particle protection device for brushless permanent magnet outer rotor motor - Google Patents
Large-particle protection device for brushless permanent magnet outer rotor motor Download PDFInfo
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- CN216851544U CN216851544U CN202123002185.4U CN202123002185U CN216851544U CN 216851544 U CN216851544 U CN 216851544U CN 202123002185 U CN202123002185 U CN 202123002185U CN 216851544 U CN216851544 U CN 216851544U
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- end cover
- outer rotor
- external rotor
- stator
- motor
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Abstract
The utility model discloses a large granule protector for brushless permanent magnet external rotor electric machine, this protector include the external rotor, the upper portion of external rotor is equipped with the external rotor end cover, the external rotor end cover is a spoke structure, the upper portion central authorities of external rotor end cover are connected with the rotor fixed plate, the lower part central authorities of external rotor end cover are connected with the pivot, the lower part of external rotor end cover is equipped with the external rotor protection network, the periphery of external rotor protection network pass through external rotor protection network mounting with the external rotor end cover is connected. The utility model discloses a protector not only dead weight is lighter, can prevent brushless permanent magnetism external rotor electric machine moreover in the use large granular nature material get into inside the motor to avoid the appearance of trouble, ensure the operation of lasting stable of motor.
Description
Technical Field
The utility model relates to a motor protection technical field particularly, relates to a large granule protector for brushless permanent magnet external rotor electric machine.
Background
At present, brushless permanent magnetism external rotor electric machine on the market mainly is applied to unmanned aerial vehicle, and the weight requirement is particularly important to unmanned aerial vehicle, and the motor that this kind of unmanned aerial vehicle adopted simultaneously mostly adopts cold wind, in order to alleviate the weight of self and the radiating effect who increases the motor for the end cover designs the structure of fretwork on unmanned aerial vehicle's the motor about mostly. But when using the structure of this kind of fretwork, inside large particulate matter got into the motor very easily, lead to the motor to appear some trouble problems in the use, and then lead to the unable normal use of motor, greatly reduced the work efficiency of motor like this.
No effective solution to this problem has been proposed so far.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a large granule protector for brushless permanent magnet external rotor electric machine can overcome the above-mentioned not enough of prior art.
In order to achieve the technical purpose, the technical scheme of the utility model is that:
a large-particle protection device for a brushless permanent magnet outer rotor motor comprises an outer rotor, wherein an outer rotor end cover is arranged at the upper part of the outer rotor, the outer rotor end cover is of a spoke structure, the center of the upper part of the outer rotor end cover is connected with a rotor fixing plate, the center of the lower part of the outer rotor end cover is connected with a rotating shaft, an outer rotor protective net is arranged at the lower part of the outer rotor end cover, and the periphery of the outer rotor protective net is connected with the outer rotor end cover through an outer rotor protective net fixing piece;
the upper end and the lower end of the rotating shaft are respectively sleeved with a bearing, the inner ring of the bearing is connected with the rotating shaft, the outer ring of the bearing is connected with the motor stator, and the bottom of the rotating shaft is connected with the circular pressing plate;
the bottom of the motor stator is fixedly connected with a stator end cover, a stator protective net is arranged on the lower portion of the stator end cover, and the inner side or the outer side of the stator end cover is connected with the stator protective net through the protective net fixing piece.
Furthermore, the outer rotor is of an annular structure with a permanent magnet inside.
Further, the outer rotor protective net fixing piece and the outer rotor protective net are connected in a bolt connection mode, a riveting mode or a gluing mode.
Further, the outer rotor end cover, the rotating shaft and the rotor fixing plate are fixedly connected through bolts.
Further, the bottom of the rotating shaft is connected with the circular pressing plate through bolts.
Furthermore, an iron core penetrating up and down is arranged inside the motor stator, and an outer ring of the motor stator is a winding coil.
Further, a gap is formed between the motor stator and the outer rotor.
Further, the bottom of the motor stator is connected with the stator end cover through bolts.
The utility model has the advantages that: the utility model discloses a protector not only deadweight is lighter, can prevent moreover that brushless permanent magnetism external rotor electric machine large granule nature material from getting into inside the motor in the use to avoid the appearance of trouble, ensure the continuous stable operation of motor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a large particle protector according to an embodiment of the present invention;
FIG. 2 is a top schematic view of a large particle guard according to an embodiment of the present invention;
FIG. 3 is a bottom schematic view of a large particle guard according to an embodiment of the present invention;
in the figure: 1. the motor comprises an outer rotor end cover, 2, a rotor fixing plate, 3, an outer rotor protective net, 4, an outer rotor protective net fixing piece, 5, a motor stator, 6, a rotating shaft, 7, a stator protective net fixing piece, 8, a circular pressing plate, 9, a bearing, 10, a stator protective net, 11, a stator end cover, 12 and an outer rotor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1, the large particle protector for a brushless permanent magnet external rotor motor according to an embodiment of the present invention includes an external rotor 12, an external rotor end cover 1 is disposed on an upper portion of the external rotor 12, the external rotor end cover 1 is in a spoke structure, an upper center of the external rotor end cover 1 is connected to a rotor fixing plate 2, a lower center of the external rotor end cover 1 is connected to a rotating shaft 6, an external rotor protection net 3 is disposed on a lower portion of the external rotor end cover 1, and a periphery of the external rotor protection net 3 is connected to the external rotor end cover 1 through an external rotor protection net fixing member 4;
the upper end and the lower end of the rotating shaft 6 are respectively sleeved with a bearing 9, the inner bearing ring of each bearing 9 is connected with the rotating shaft 6, the outer bearing ring of each bearing 9 is connected with the motor stator 5, and the bottom of the rotating shaft 6 is connected with the circular pressing plate 8;
the bottom of the motor stator 5 is fixedly connected with a stator end cover 11, a stator protection net 10 is arranged on the lower portion of the stator end cover 11, and the inner side or the outer side of the stator end cover 11 is connected with the stator protection net 10 through the protection net fixing piece 7.
In this embodiment, the outer rotor 12 is an annular structure with permanent magnets inside.
In this embodiment, as shown in fig. 2, the external rotor protection net fixing member 4 and the external rotor protection net 3 are not limited to being connected by bolts, rivets or cements.
In this embodiment, as shown in fig. 2, the external rotor protective net 3 is a thin metal net structure, which can ensure that air can smoothly pass through, but large particles cannot pass through, thereby ensuring good heat dissipation of the motor.
In this embodiment, the outer rotor end cover 1, the rotating shaft 6 and the rotor fixing plate 2 are fixedly connected together by bolts.
In the embodiment, the bottom of the rotating shaft 6 is connected with the circular pressing plate 8 through a bolt, and the inner ring of the bearing 9 is limited to move along the axial direction of the rotating shaft 6 through the circular pressing plate 8.
In this embodiment, the rotating shaft 6 is in a rotating relationship with the motor stator 5.
In this embodiment, the motor stator 5 has an iron core penetrating vertically inside, and the outer ring of the motor stator 5 is a winding coil, which can ensure smooth airflow to ensure good heat dissipation effect of the iron core.
In this embodiment, a gap is formed between the motor stator 5 and the outer rotor 12, so as to ensure that the outer rotor 12 and the motor stator 5 are in a rotating relationship when the motor stator 5 is fixed.
In the present embodiment, the bottom of the motor stator 5 is bolted to the stator cover 11.
In this embodiment, as shown in fig. 3, the stator protection net 10 is a thin metal net structure, which can ensure that air can smoothly pass through, but large particulate matters cannot pass through, thereby ensuring that the heat dissipation of the motor is good.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When the brushless permanent magnet outer rotor motor works, air can smoothly pass through the outer rotor protective net 3 and the stator protective net 10, large granular substances in the air can be blocked by the outer rotor protective net 3 and the stator protective net 10 and cannot enter the motor, so that the damage of the large granular substances entering the motor to the motor is effectively avoided, and the normal use of the motor is ensured.
To sum up, with the help of the above technical scheme of the utility model, the utility model discloses a protector not only deadweight is lighter, can prevent brushless permanent magnetism external rotor electric machine moreover in the use large granular material get into inside the motor to avoid the appearance of trouble, ensure the continuous stable operation of motor.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The large-particle protection device for the brushless permanent magnet outer rotor motor is characterized by comprising an outer rotor (12), wherein an outer rotor end cover (1) is arranged at the upper part of the outer rotor (12), the outer rotor end cover (1) is of a spoke structure, the center of the upper part of the outer rotor end cover (1) is connected with a rotor fixing plate (2), the center of the lower part of the outer rotor end cover (1) is connected with a rotating shaft (6), an outer rotor protective net (3) is arranged at the lower part of the outer rotor end cover (1), and the periphery of the outer rotor protective net (3) is connected with the outer rotor end cover (1) through an outer rotor protective net fixing piece (4);
the upper end and the lower end of the rotating shaft (6) are respectively sleeved with a bearing (9), the inner bearing ring of each bearing (9) is connected with the rotating shaft (6), the outer bearing ring of each bearing (9) is connected with the motor stator (5), and the bottom of the rotating shaft (6) is connected with the circular pressing plate (8);
the bottom of the motor stator (5) is fixedly connected with a stator end cover (11), a stator protective net (10) is arranged on the lower portion of the stator end cover (11), and the inner side or the outer side of the stator end cover (11) is connected with the stator protective net (10) through a protective net fixing piece (7).
2. Guard according to claim 1, characterized in that the outer rotor (12) is of an annular configuration with permanent magnets inside.
3. The protective device according to claim 1, wherein the external rotor protective mesh fixing member (4) and the external rotor protective mesh (3) are connected by means of bolts, rivets or cement.
4. The protective device according to claim 1, characterized in that the outer rotor end cover (1) is fixedly connected with the rotating shaft (6) and the rotor fixing plate (2) by bolts.
5. Guard device according to claim 1, characterized in that the bottom of the rotating shaft (6) is bolted to the circular pressure plate (8).
6. The protection device according to claim 1, wherein an iron core penetrating up and down is arranged inside the motor stator (5), and an outer ring of the motor stator (5) is a winding coil.
7. Guard device according to claim 1, characterized in that a gap is provided between the motor stator (5) and the outer rotor (12).
8. Guard device according to claim 1, characterized in that the bottom of the motor stator (5) is bolted to the stator end cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123002185.4U CN216851544U (en) | 2021-12-02 | 2021-12-02 | Large-particle protection device for brushless permanent magnet outer rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123002185.4U CN216851544U (en) | 2021-12-02 | 2021-12-02 | Large-particle protection device for brushless permanent magnet outer rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216851544U true CN216851544U (en) | 2022-06-28 |
Family
ID=82104939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123002185.4U Active CN216851544U (en) | 2021-12-02 | 2021-12-02 | Large-particle protection device for brushless permanent magnet outer rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216851544U (en) |
-
2021
- 2021-12-02 CN CN202123002185.4U patent/CN216851544U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230809 Address after: Room 202, No. 11 Dexing Lane, Chong'an District, Wuxi City, Jiangsu Province, 214000 Patentee after: Yang Haiyan Address before: 215143 Building 2, No. 18, Qianghua Road, Huayang village, Wangting Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: HELIPELLER GENERAL AIRCRAFT CO.,LTD. |