CN212258638U - Unmanned aerial vehicle and driving motor thereof - Google Patents
Unmanned aerial vehicle and driving motor thereof Download PDFInfo
- Publication number
- CN212258638U CN212258638U CN201922226355.3U CN201922226355U CN212258638U CN 212258638 U CN212258638 U CN 212258638U CN 201922226355 U CN201922226355 U CN 201922226355U CN 212258638 U CN212258638 U CN 212258638U
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- outer rotor
- aerial vehicle
- unmanned aerial
- driving motor
- rotor shell
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- 230000005540 biological transmission Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a motor waterproof technology field provides an unmanned aerial vehicle and driving motor thereof. The driving motor comprises an outer rotor shell, a base of the outer rotor shell is provided with a disc-shaped airflow channel, an air inlet of the disc-shaped airflow channel is positioned at the center of the base, the edge of the disc-shaped airflow channel is provided with an annular air inlet, and the annular air inlet is communicated with the edge of an inner cavity of the outer rotor shell; a plurality of exhaust holes are circumferentially distributed in the top of the outer rotor shell, and fans are arranged in the exhaust holes and used for generating upward air flow. By the above, through set up airflow channel in the outer rotor shell to set up the gas vent that has the fan at the top of casing, make the top side of casing form the air current barrier that blows upwards, prevent rainwater from the louvre and the motor shaft infiltration of outer rotor shell top, thereby to a great extent has improved the security of motor, prevents to take place the short circuit, makes the aircraft can safe, stable operation.
Description
Technical Field
The utility model relates to a waterproof technical field of motor, concretely relates to unmanned aerial vehicle and driving motor thereof.
Background
Unmanned aerial vehicle's motor cooling hole is up, like this at the flight in-process, because rotor full skirt edge diameter is less than the motor housing diameter, as long as there is a small amount of drop of water, at rotatory in-process, the drop of water can directly take into the motor cooling hole, and this motor belongs to the direct current operation mode, in case intake, will probably lead to short circuit or contact failure, seriously influences the motor and exert oneself to lead to the aircraft crash to cause the flight accident.
If the umbrella skirt marginal portion in the middle of the rotor is slightly bigger, the umbrella skirt external diameter is greater than the motor diameter, that is to say the motor just under the protection of "umbrella skirt" of rotor, though can prevent to a certain extent that the rainwater from getting into, unmanned aerial vehicle is at the flight of higher speed, and the rainwater is probably from the below of oblique injection umbrella skirt, and then gets into the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can increase probably to reduce the driving motor for unmanned aerial vehicle in the rainwater gets into the unmanned aerial vehicle motor.
In order to achieve the above object, the present invention provides a driving motor for an unmanned aerial vehicle, which includes an outer rotor housing, wherein a base of the outer rotor housing is provided with a disk-shaped airflow channel, an air inlet of the disk-shaped airflow channel is located at a central position of the base, an annular air inlet is arranged at an edge of the disk-shaped airflow channel, and the annular air inlet is communicated with an edge of an inner cavity of the outer rotor housing; a plurality of exhaust holes are circumferentially distributed in the top of the outer rotor shell, and fans are arranged in the exhaust holes and used for generating upward air flow.
Preferably, a plurality of flow guide grooves are longitudinally formed in the inner wall of the outer rotor shell, the flow guide grooves are circumferentially and uniformly distributed, and two ends of each flow guide groove are correspondingly communicated with the annular air inlet and the exhaust hole.
Preferably, the longitudinal position of the exhaust hole corresponds to the gap between two adjacent magnetic steels in the driving motor.
Preferably, the rotating shaft is in transmission connection with an output shaft of the driving motor through a transmission device.
Preferably, a first gear is arranged on a rotating shaft of the fan, a second gear is arranged on an output shaft of the driving motor, the transmission device is a gear set arranged in the outer rotor shell, and the first gear is in transmission connection with the second gear through the gear set.
Preferably, the thickness of the disc-shaped airflow channel is 0.5 mm-1 mm.
The utility model also provides an unmanned aerial vehicle, include as above driving motor for the unmanned aerial vehicle.
By the above, through set up airflow channel in the outer rotor shell to set up the gas vent that has the fan at the top of casing, make the top side of casing form the air current barrier that blows upwards, prevent rainwater from the louvre and the motor shaft infiltration of outer rotor shell top, thereby to a great extent has improved the security of motor, prevents to take place the short circuit, makes the aircraft can safe, stable operation.
Drawings
Fig. 1 is a schematic view of a driving motor for an unmanned aerial vehicle according to an embodiment of the present invention.
Reference numerals:
1. an air inlet; 2. an annular gas inlet; 3. an outer rotor housing; 4. magnetic steel; 5. a fan; 6. A bearing; 7. an inner cavity; 8. a base; 9. a disk-shaped airflow channel; 10. the motor is driven.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are some, but not all embodiments of the invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
As shown in fig. 1, the embodiment of the present invention provides a driving motor for an unmanned aerial vehicle, including an outer rotor housing 3, a base 8 of the outer rotor housing 3 is provided with a disk-shaped airflow channel 9, an air inlet 1 of the disk-shaped airflow channel 9 is located at a central position of the base 8, an edge of the disk-shaped airflow channel 9 is provided with an annular air inlet 2, the annular air inlet 2 is communicated with an edge of an inner cavity 7 of the outer rotor housing 3, and a thickness of the disk-shaped airflow channel 9 is preferably 0.5mm to 1mm, so as to form a labyrinth structure, even if there is a small amount of water at a lower portion of the; a plurality of exhaust holes are circumferentially distributed at the top of the outer rotor shell 3, the exhaust holes are positioned outside a bearing 6 of the motor output shaft, a fan 5 is arranged in each exhaust hole, and the fan 5 is used for generating upward airflow. Through set up airflow channel in the outer rotor shell to set up the gas vent that has fan 5 at the top of casing, make the top side of casing form the air current protective screen that upwards blows, prevent rainwater from the louvre and the infiltration of motor shaft department at outer rotor shell top, thereby to a great extent has improved the security of motor, prevents to take place the short circuit, makes the aircraft can be safe, stable operation.
In some embodiments, a plurality of flow guide grooves are longitudinally formed in the inner wall of the outer rotor housing 3, the flow guide grooves are circumferentially and uniformly distributed, and two ends of each flow guide groove are correspondingly communicated with the annular air inlet 2 and the exhaust hole. Even if a small amount of water enters from the bottom of the motor, the water is blown upwards along the diversion trench from the annular air inlet 2 by the airflow until the water is discharged from the exhaust hole.
In a further embodiment, the longitudinal position of the exhaust hole corresponds to the gap between two adjacent magnetic steels 4 in the driving motor 10, i.e. the position of the flow guide groove is staggered with the position of the magnetic steel 4, and the spatial arrangement is reasonable.
In some embodiments, the rotating shaft is in transmission connection with an output shaft of the driving motor 10 through a transmission device, and the fan 5 is driven to rotate synchronously by the rotating shaft of the motor.
Specifically, a first gear is arranged on a rotating shaft of the fan 5, a second gear is arranged on an output shaft of the driving motor 10, the transmission device is a gear set arranged in the outer rotor shell 3, and the first gear is in transmission connection with the second gear through the gear set.
The utility model also provides an unmanned aerial vehicle, driving motor for the unmanned aerial vehicle as above.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A driving motor for an unmanned aerial vehicle is characterized by comprising an outer rotor shell, wherein a base of the outer rotor shell is provided with a disc-shaped airflow channel, an air inlet of the disc-shaped airflow channel is positioned at the center of the base, the edge of the disc-shaped airflow channel is provided with an annular air inlet, and the annular air inlet is communicated with the edge of an inner cavity of the outer rotor shell; a plurality of exhaust holes are circumferentially distributed in the top of the outer rotor shell, and fans are arranged in the exhaust holes and used for generating upward air flow.
2. The driving motor for the unmanned aerial vehicle of claim 1, wherein a plurality of flow guide grooves are longitudinally formed in an inner wall of the outer rotor housing, the flow guide grooves are circumferentially and uniformly distributed, and two ends of each flow guide groove are correspondingly communicated with the annular air inlet and the exhaust hole.
3. The driving motor for the unmanned aerial vehicle of claim 2, wherein the longitudinal position of the air vent corresponds to a gap between two adjacent magnetic steels in the driving motor.
4. The drive motor for the unmanned aerial vehicle of claim 1, wherein the rotating shaft of the fan is in transmission connection with an output shaft of the drive motor through a transmission device.
5. The driving motor for the unmanned aerial vehicle of claim 4, wherein a first gear is provided on a rotating shaft of the fan, a second gear is provided on an output shaft of the driving motor, the transmission device is a gear set provided in the outer rotor housing, and the first gear is in transmission connection with the second gear through the gear set.
6. The drive motor for the unmanned aerial vehicle according to claim 1, wherein the thickness of the disk-shaped airflow passage is 0.5mm to 1 mm.
7. An unmanned aerial vehicle comprising the drive motor for an unmanned aerial vehicle according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226355.3U CN212258638U (en) | 2019-12-12 | 2019-12-12 | Unmanned aerial vehicle and driving motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226355.3U CN212258638U (en) | 2019-12-12 | 2019-12-12 | Unmanned aerial vehicle and driving motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212258638U true CN212258638U (en) | 2020-12-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922226355.3U Active CN212258638U (en) | 2019-12-12 | 2019-12-12 | Unmanned aerial vehicle and driving motor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212258638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112750597A (en) * | 2021-01-07 | 2021-05-04 | 南京爱慕新商贸有限公司 | Disaster-resistant bottom-protecting power grid equipment |
-
2019
- 2019-12-12 CN CN201922226355.3U patent/CN212258638U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112750597A (en) * | 2021-01-07 | 2021-05-04 | 南京爱慕新商贸有限公司 | Disaster-resistant bottom-protecting power grid equipment |
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