CN214755926U - Redundant motor and unmanned aerial vehicle - Google Patents
Redundant motor and unmanned aerial vehicle Download PDFInfo
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- CN214755926U CN214755926U CN202120424873.0U CN202120424873U CN214755926U CN 214755926 U CN214755926 U CN 214755926U CN 202120424873 U CN202120424873 U CN 202120424873U CN 214755926 U CN214755926 U CN 214755926U
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Abstract
The utility model discloses a redundant motor and unmanned aerial vehicle, include: the motor is provided with an output shaft, and the number of the motors is at least two; the transmission mechanism is provided with a first transmission piece and a second transmission piece, the first transmission piece is in transmission connection with the second transmission piece, and the first transmission piece is fixedly connected with the output shaft; the main shaft, with second driving medium fixed connection, the motor passes through the drive mechanism drive the main shaft rotates, and when certain motor became invalid, at least one motor can rotate through drive mechanism drive main shaft, can prevent that certain motor became invalid and cause unmanned aerial vehicle whole power to become invalid to improve unmanned aerial vehicle's fault-tolerance and reliability.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to redundant motor and unmanned aerial vehicle.
Background
Compared with an outer rotor motor, an inner rotor motor in a single rotor has the characteristics of strong structural rigidity, easiness in fixation and high rotating speed. However, in the case of a single rotor requiring high rotation speed, an excessively high KV value (KV value is a parameter and a representation method representing gas flow characteristics) means that a high current matched with the KV value is required in a line, which may result in an increased requirement for electric wires or an excessively high temperature, which may cause fire easily, and for a single rotor, when a problem occurs in a rotor or a rotor bearing, the entire motor may be stuck to cause a halt, and the inner rotor motor has a characteristic of high rotation speed but low torque.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a redundant motor and unmanned aerial vehicle improves the fault-tolerance and the reliability of motor, and then prevents that certain motor from becoming invalid and causing the whole power failure of unmanned aerial vehicle.
According to the utility model discloses redundant motor of first aspect embodiment includes: the motor is provided with an output shaft, and the number of the motors is at least two; the transmission mechanism is provided with a first transmission piece and a second transmission piece, the first transmission piece is in transmission connection with the second transmission piece, and the first transmission piece is fixedly connected with the output shaft; the main shaft is fixedly connected with the second transmission piece, and the motor drives the main shaft to rotate through the transmission mechanism.
According to the utility model discloses a redundant motor has following beneficial effect at least: the motor has the output shaft, and the motor is provided with two at least, and drive mechanism has first driving medium and second driving medium, first driving medium and output shaft fixed connection, the output shaft can drive first driving medium and rotate, first driving medium is connected with the transmission of second driving medium, first driving medium can drive the rotation of second driving medium, main shaft and second driving medium fixed connection, two at least motors pass through drive mechanism drive main shaft and rotate, when certain motor became invalid, at least one motor can rotate through drive mechanism drive main shaft, can prevent that certain motor became invalid and cause whole power failure, thereby improve the fault-tolerance and the reliability of motor.
According to some embodiments of the utility model, still include the support base, the motor is fixed on the support base, the main shaft with the connected mode of support base is for rotating the connection.
According to some embodiments of the utility model, the motor has four, four the mounted position equipartition of motor is in the four corners of support base.
According to some embodiments of the invention, the motor is an inner rotor motor.
According to some embodiments of the invention, at least two the motors adopt a parallel circuit connection.
According to some embodiments of the invention, the transmission mechanism is a gear mechanism.
According to some embodiments of the invention, the first transmission member is a first gear, the second transmission member is a second gear, the first gear is engaged with the second gear, and the diameter of the second gear is greater than the diameter of the first gear.
According to the utility model discloses unmanned aerial vehicle of second aspect embodiment, including foretell redundant motor.
According to the utility model discloses an unmanned aerial vehicle has following beneficial effect at least: unmanned aerial vehicle adopts redundant motor, and the motor has the output shaft, and the motor is provided with two at least, and drive mechanism has first driving medium and second driving medium, first driving medium and output shaft fixed connection, the output shaft can drive first driving medium and rotate, first driving medium is connected with the transmission of second driving medium, first driving medium can drive the rotation of second driving medium, main shaft and second driving medium fixed connection, two at least motors pass through drive mechanism drive main shaft and rotate, when certain motor became invalid, at least one motor can rotate through drive mechanism drive main shaft, can prevent that certain motor from becoming invalid and causing the whole power failure of unmanned aerial vehicle, thereby improve unmanned aerial vehicle's fault-tolerance and reliability.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a redundant motor according to some embodiments of the present invention;
fig. 2 is a schematic structural diagram of the first transmission member in fig. 1 being a first gear and the second transmission member being a second gear.
The reference numbers are as follows: a motor 100; an output shaft 110;
a transmission mechanism 200; a first transmission member 210; a first gear 211; a second transmission member 220; a second gear 221;
a main shaft 300;
a stand base 400.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, in some embodiments, a redundant electric machine includes: the motor 100, the transmission mechanism 200 and the spindle 300, the motor 100 has an output shaft 110, and the motor 100 is provided with at least two, the transmission mechanism 200 has a first transmission member 210 and a second transmission member 220, the first transmission member 210 is fixedly connected with the output shaft 110, the output shaft 110 can drive the first transmission member 210 to rotate, the first transmission member 210 is in transmission connection with the second transmission member 220, the first transmission member 210 can drive the second transmission member 220 to rotate, the spindle 300 is fixedly connected with the second transmission member 220, at least two motors 100 drive the spindle 300 to rotate through the transmission mechanism 200, when a certain motor 100 fails, at least one motor 100 can drive the spindle 300 to rotate through the transmission mechanism 200, which can prevent the failure of the certain motor 100 from causing the overall power failure, thereby improving the fault tolerance and the reliability of the motor 100.
Referring to fig. 1, in some embodiments, the redundant motor further includes a bracket base 400, the motor 100 is fixed on the bracket base 400, the side wall of the bracket base 400 can surround the motor 100 and the transmission mechanism 200, and prevent the motor 100 and the transmission mechanism 200 from being damaged due to external force impact, the main shaft 300 is rotatably connected with the bracket base 400, the main shaft 300 can extend out of the bracket base 400 to provide driving force for an output end, the bracket base 400 is made of a resin material, and the resin material has good strength and heat dissipation performance, and can improve the heat dissipation effect of the redundant motor while ensuring the structural strength.
Referring to fig. 1, in some embodiments, four motors 100 are disposed in a bracket base 400, mounting positions of the four motors 100 are uniformly distributed at four corners of the bracket base 400, the four motors 100 are all fixedly connected to first transmission members 210, and second transmission members 220 are driven by the four first transmission members 210, so that the redundant motor axial load distribution is more reasonable, the four motors 100 drive a spindle 300 to rotate, when a certain motor 100 fails, and three motors 100 can drive the spindle 300 to rotate through a transmission mechanism 200, so that the failure of the certain motor 100 to cause the failure of the whole power can be prevented, and the fault tolerance and reliability of the motor 100 can be improved.
In some embodiments, the motor 100 employs an inner rotor motor, which has the characteristics of less number of poles, high rotation speed and small torque, and under the condition of the same weight of the rotor, the rotational inertia of the inner rotor motor is small, so that the KV value of the inside rotation is high, and the KV value is a gas flow characteristic parameter well known to those skilled in the art, and is not described herein any more, and the inner rotor motor is suitable for being applied to an unmanned aerial vehicle, and the unmanned aerial vehicle needs the motor 100 driven at high rotation speed to improve the powerful maneuverability.
In some embodiments, at least two motors 100 are connected in parallel, and the parallel connection between the motors 100 can ensure that when one motor 100 fails, at least one motor 100 can be further connected to a power supply, which can provide power for the parallel connected motors 100, and when a certain parallel motor 100 fails, at least one parallel motor 100 can drive the main shaft 300 to rotate through the transmission mechanism 200, which can prevent the failure of the certain motor 100 from causing the failure of the whole power, thereby improving the fault tolerance and reliability of the motors 100.
Referring to fig. 2, in some embodiments, the transmission mechanism 200 is a gear mechanism, the connection manner between the first transmission member 210 and the second transmission member 220 is a gear transmission connection, the transmission precision of the gear transmission mechanism 200 is high, the transmission ratio between the first transmission member 210 and the second transmission member 220 can be ensured, the transmission between two shafts of a parallel shaft and a crossed shaft can be realized, the redundant motor has a simple and reliable structure, the service life of the redundant motor is prolonged, and the transmission efficiency is high.
Referring to fig. 2, in some embodiments, the first transmission member 210 is a first gear 211, the second transmission member 220 is a second gear 221, the first gear 211 and the second gear 221 are engaged with each other, the first gear 211 is fixedly connected to the output shaft 110 of the motor 100, the second gear 221 is fixedly connected to the spindle 300, so that the motor 100 can drive the spindle 300 to rotate, and the diameter of the second gear 221 is greater than that of the first gear 211, so that the rotation speed of the second gear 221 is reduced, and thus the torque output by the spindle 300 can be increased.
According to the embodiment of the second aspect of the present invention, the driving module of the unmanned aerial vehicle adopts redundant motors, the motors 100 have output shafts 110, and at least two motors 100 are provided, the transmission mechanism 200 has a first transmission member 210 and a second transmission member 220, the first transmission member 210 is fixedly connected to the output shafts 110, the output shafts 110 can drive the first transmission member 210 to rotate, the first transmission member 210 is in transmission connection with the second transmission member 220, the first transmission member 210 can drive the second transmission member 220 to rotate, the main shaft 300 is fixedly connected to the second transmission member 220, the torque output by the main shaft 300 can be increased by adopting the gear transmission mechanism 200, the service life of the redundant motors is prolonged, the transmission efficiency is high, at least two motors 100 can drive the main shaft 300 to rotate through the transmission mechanism 200, when a certain motor 100 fails, at least one motor 100 can drive the main shaft 300 to rotate through the transmission mechanism 200, can prevent that certain motor 100 from becoming invalid and causing the whole power of unmanned aerial vehicle to become invalid to improve unmanned aerial vehicle's fault tolerance and reliability.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.
Claims (8)
1. A redundant electric machine, comprising:
a motor (100) having an output shaft (110), at least two of the motors (100);
the transmission mechanism (200) is provided with a first transmission piece (210) and a second transmission piece (220), the first transmission piece (210) is in transmission connection with the second transmission piece (220), and the first transmission piece (210) is fixedly connected with the output shaft (110);
the main shaft (300) is fixedly connected with the second transmission piece (220), and the motor (100) drives the main shaft (300) to rotate through the transmission mechanism (200).
2. The redundant motor according to claim 1, further comprising a bracket base (400), wherein the motor (100) is fixed on the bracket base (400), and the spindle (300) is connected with the bracket base (400) in a rotating manner.
3. The redundant motor according to claim 2, wherein the number of the motors (100) is four, and the four mounting positions of the motors (100) are uniformly distributed at four corners of the bracket base (400).
4. Redundant electric machine according to claim 1 or 3, characterized in that the electric machine (100) is an internal rotor machine.
5. A redundant electric machine according to claim 1 or 3, characterized in that the electric machine (100) is connected in parallel in an electric circuit.
6. The redundant electric machine according to claim 1, characterized in that the transmission mechanism (200) is a gear mechanism.
7. The redundant electric machine according to claim 6, wherein the first transmission member (210) is a first gear (211), the second transmission member (220) is a second gear (221), the first gear (211) is in meshing connection with the second gear (221), and the diameter of the second gear (221) is larger than the diameter of the first gear (211).
8. An unmanned aerial vehicle, its characterized in that: comprising a redundant electric machine according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120424873.0U CN214755926U (en) | 2021-02-26 | 2021-02-26 | Redundant motor and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120424873.0U CN214755926U (en) | 2021-02-26 | 2021-02-26 | Redundant motor and unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214755926U true CN214755926U (en) | 2021-11-16 |
Family
ID=78590202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120424873.0U Active CN214755926U (en) | 2021-02-26 | 2021-02-26 | Redundant motor and unmanned aerial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214755926U (en) |
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2021
- 2021-02-26 CN CN202120424873.0U patent/CN214755926U/en active Active
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Effective date of registration: 20220727 Address after: 110000 first floor of plant, No. 37-3, Shenbei Road, Shenbei New District, Shenyang City, Liaoning Province Patentee after: Shenyang Tianqing Aerospace Technology Co.,Ltd. Address before: 519000 Room 102, floor 1, No. 3 plant, No. 6898, Zhuhai Avenue, Hongqi Town, Jinwan District, Zhuhai City, Guangdong Province Patentee before: ZHUHAI TIANQING AEROSPACE TECHNOLOGY CO.,LTD. |