CN211089408U - Outer-rotating multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle - Google Patents
Outer-rotating multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle Download PDFInfo
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- CN211089408U CN211089408U CN201922417410.7U CN201922417410U CN211089408U CN 211089408 U CN211089408 U CN 211089408U CN 201922417410 U CN201922417410 U CN 201922417410U CN 211089408 U CN211089408 U CN 211089408U
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Abstract
The utility model relates to an outer-rotating multistage parallel-serial permanent magnet coreless motor for an unmanned aerial vehicle, which comprises a housing part, a rotor part and a stator part, wherein the housing part comprises two end covers and a housing, a plurality of heat dissipation holes are arranged on the end covers in the circumferential direction, and the end faces of the two end covers are provided with the housing; the rotor part comprises a single-sided magnetic yoke permanent magnet rotor and a double-sided magnetic yoke permanent magnet rotor, the single-sided magnetic yoke permanent magnet rotor is respectively arranged in the two end covers, and the double-sided magnetic yoke permanent magnet rotor is positioned between the single-sided magnetic yoke permanent magnet rotors on the two sides; the motor shaft is fixedly provided with the winding stator through the shaft sleeve, and the two winding stators are respectively positioned between the single-side magnetic yoke permanent magnet rotor and the double-side magnetic yoke permanent magnet rotor. The utility model discloses have good radiating effect, can increase its moment of torsion, guarantee unmanned aerial vehicle's steady flight.
Description
Technical Field
The utility model relates to an unmanned aerial vehicle motor technical field especially relates to an unmanned aerial vehicle is with outer multistage parallel connection in series permanent magnetism coreless motor of commentaries on classics.
Background
Along with the development of the unmanned aerial vehicle industry in recent years, the unmanned aerial vehicle has been widely applied in civil or military fields such as plant protection, fire control, frontier defense patrol, reconnoitring, etc., the operation of the unmanned aerial vehicle needs the high-efficient driving motor to drive the rotor to rotate at a high speed, so that the design of the driving motor needs to be more rigorous, and the design requirements of light dead weight, simple structure, easy maintenance, constant torque, etc. need to be met.
Traditional unmanned aerial vehicle motor decide, be equipped with iron core and coil in the rotor winding, when the motor operation, its loss is big, inefficiency, easily produce the metal loss, thereby make the inside temperature of casing rise, receive its mounted position, the restriction of factors such as the mode of being qualified for the next round of competitions causes the unable effective discharge of high temperature, and then influence the control by temperature change performance of motor complete machine, traditional unmanned aerial vehicle motor exists weight greatly simultaneously, and is bulky, the moment of torsion is little and take off the limitation such as weight is limited, restrict the development in unmanned aerial vehicle field. Therefore, the outer-rotating multistage parallel-serial permanent magnet coreless motor for the unmanned aerial vehicle is provided.
Disclosure of Invention
The utility model discloses a solve traditional unmanned aerial vehicle motor installation inconvenient, the poor problem of radiating effect provides an unmanned aerial vehicle with outer multistage parallel connection in series permanent magnetism coreless motor of commentaries on classics, has realized the convenient equipment of unmanned aerial vehicle motor, has good radiating effect simultaneously, guarantees unmanned aerial vehicle's steady flight.
In order to achieve the above object, the utility model adopts the following technical scheme:
an outer-rotating multistage parallel-serial permanent magnet coreless motor for an unmanned aerial vehicle comprises a housing part, a rotor part and a stator part, wherein the housing part comprises two end covers and a housing shell which are distributed at intervals, a plurality of heat dissipation holes are annularly formed in the end covers, the end faces of the two end covers are coaxially arranged on the housing shell, and a mounting hole for mounting a rotor wing of the unmanned aerial vehicle is formed in one end cover;
the rotor part comprises a single-sided magnetic yoke permanent magnet rotor and a double-sided magnetic yoke permanent magnet rotor, the single-sided magnetic yoke permanent magnet rotor is respectively arranged in the two end covers, the double-sided magnetic yoke permanent magnet rotor is positioned between the single-sided magnetic yoke permanent magnet rotors on the two sides, and the double-sided magnetic yoke permanent magnet rotor, the two end covers and the shell are connected and fastened through a plurality of fixing bolts;
the stator part comprises a motor shaft, a shaft sleeve and two winding stators, the motor shaft is rotationally connected with the end cover, one end of the motor shaft extends out of the end cover at the other end, a wire outlet hole is formed in the motor shaft, the motor shaft is fixedly provided with the winding stators through the shaft sleeve, and the two winding stators are respectively positioned between the single-sided magnetic yoke permanent magnet rotor and the double-sided magnetic yoke permanent magnet rotor.
Furthermore, the casing is circular, a cavity is formed inside the end cover and the casing after the end cover and the casing are connected, the rotor part and the stator part are both located in the cavity, and one end of the motor shaft penetrates through the end cover on the other side and extends out of the cavity.
Furthermore, the single-sided magnetic yoke permanent magnet rotor comprises a single-sided rotor magnetic yoke disc and a plurality of permanent magnets which are circumferentially arranged on the inner side surface of the single-sided rotor magnetic yoke disc, and the single-sided rotor magnetic yoke disc is connected with the end cover through screws; the double-sided magnetic yoke permanent magnet rotor comprises a double-sided rotor magnetic yoke disc and a plurality of permanent magnets which are annularly arranged on two end faces of the double-sided rotor magnetic yoke disc.
Further, gaps exist among the single-sided rotor magnetic yoke disc, the winding stator and the double-sided rotor magnetic yoke disc; the permanent magnets are in a fan ring shape, and N poles and S poles of the permanent magnets are distributed in an annular and alternate mode.
Furthermore, the motor shaft is connected with the end cover through a ball bearing, the number of the shaft sleeves is two, the shaft sleeves are connected with the motor shaft key, and the two shaft sleeves are respectively provided with the winding stators; the outlet holes are distributed along the axial direction of the motor shaft and then radially extend out of the motor shaft.
Further, the winding stator comprises a stator disc and a plurality of stator coils which are annularly arranged on the stator disc, and the stator coils are solidified in the stator disc.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model has the advantages of reasonable design, through the relative rotation of rotor portion and stator portion at the during operation, rotor portion rotates and makes casing portion rotate, makes the high-speed flow of end cover surface air under the effect of centrifugal force to reach the effect of natural cooling, simultaneously under the condition of the limited increase of volume, weight, improve the moment of torsion and the rotational speed of motor by a wide margin, thereby effectively improve unmanned aerial vehicle's load-carrying capacity.
The plurality of radiating holes provided by the utility model ensure the normal heat radiation when the motor operates; the winding stator is distributed between the single-sided magnetic yoke permanent magnet rotor and the double-sided magnetic yoke permanent magnet rotor, the whole structure is compact, the magnetic field intensity can be improved, N poles and S poles of the permanent magnets of the double-sided magnetic yoke permanent magnet rotor are fully utilized, the running energy consumption of the motor is reduced, the torque of the motor is increased, and the efficiency is improved.
The utility model discloses the casing portion that sets up passes through ball bearing and is connected with the motor shaft rotation, and ball bearing bears radial load when the motor operation, can guarantee the high-speed stability of rotating down in the casing portion to guarantee unmanned aerial vehicle's steady flight, the wire hole of seting up in the motor shaft simultaneously can alleviate motor weight on the one hand, and on the other hand can regard as the wiring passageway in order to reduce the influence to rotor portion pivoted.
Drawings
Fig. 1 is an overall view of the external-rotation multistage parallel-serial permanent magnet coreless motor for the unmanned aerial vehicle of the present invention.
Fig. 2 is a cross-sectional view of the external-rotation multistage parallel-serial permanent magnet coreless motor for the unmanned aerial vehicle of the present invention.
Fig. 3 is an exploded view of an external rotating multi-stage parallel-serial permanent magnet coreless motor for an unmanned aerial vehicle.
The reference numbers in the drawings are as follows: the motor comprises an end cover 1, a shell 2, heat dissipation holes 3, mounting holes 4, a single-sided rotor magnetic yoke disc 501, a double-sided rotor magnetic yoke disc 601, fixing bolts 7, a motor shaft 8, a shaft sleeve 9, a winding stator 10, a stator disc 101, a stator coil 102, a wire outlet hole 11, a screw 12 and a ball bearing 13.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in fig. 1 to 3, an external-rotation multistage parallel-serial permanent magnet coreless motor for an unmanned aerial vehicle comprises a housing portion, a rotor portion and a stator portion, wherein the housing portion comprises two end covers 1 and a housing 2 which are distributed at intervals, a plurality of heat dissipation holes 3 are circumferentially formed in the end covers 1, the housing 2 is coaxially arranged on the end surfaces of the two end covers 1, the housing 2 is annular, and a mounting hole 4 for mounting a rotor wing of the unmanned aerial vehicle is formed in one end cover 1;
the rotor part comprises a single-sided magnetic yoke permanent magnet rotor and a double-sided magnetic yoke permanent magnet rotor, the single-sided magnetic yoke permanent magnet rotor is respectively arranged inside the two end covers 1, the double-sided magnetic yoke permanent magnet rotor is positioned between the single-sided magnetic yoke permanent magnet rotors on the two sides, and the double-sided magnetic yoke permanent magnet rotor, the two end covers 1 and the machine shell 2 are connected and fastened through a plurality of fixing bolts 7;
the stator part comprises a motor shaft 8, a shaft sleeve 9 and two winding stators 10, the motor shaft 8 is rotatably connected with the end cover 1, one end of the motor shaft 8 extends out of the end cover 1 at the other end, a wire outlet hole 11 is formed in the motor shaft 8, the wire outlet holes 11 are distributed along the axial direction of the motor shaft 8 and then radially extend out of the motor shaft 8, the motor shaft 8 is fixedly provided with the winding stators 10 through the shaft sleeve 9, and the two winding stators 10 are respectively positioned between the single-side magnetic yoke permanent magnet rotor and the double-side magnetic yoke permanent magnet rotor.
Specifically, a cavity is formed inside the end cover 1 and the shell 2 after the end cover and the shell are connected, the rotor part and the stator part are both positioned in the cavity, and one end of the motor shaft 8 penetrates through the end cover 1 on the other side and extends out of the cavity.
Specifically, in this embodiment, the single-sided magnetic yoke permanent magnet rotor includes a single-sided rotor magnetic yoke disc 501 and a plurality of permanent magnets circumferentially arranged on an inner side surface of the single-sided rotor magnetic yoke disc 501, and the single-sided rotor magnetic yoke disc 501 is connected with the end cover 1 through a screw 12; the double-sided magnetic yoke permanent magnet rotor comprises a double-sided rotor magnetic yoke disc 601 and a plurality of permanent magnets which are annularly arranged on two end faces of the double-sided rotor magnetic yoke disc 601, the permanent magnets are in a fan-shaped ring shape, and N and S poles of the permanent magnets are annularly and alternately distributed.
In this embodiment, the motor shaft 8 is connected to the end cap 1 through the ball bearing 13, and the ball bearing 13 bears a radial load when the motor operates, so that stability of the housing portion in high-speed rotation can be ensured.
In this embodiment, the number of the shaft sleeves 9 is two, the shaft sleeves 9 are connected with a motor shaft 8 in a key manner, the winding stators 10 are respectively arranged on the two shaft sleeves 9, specifically, the winding stators 10 include a stator disc 101 and a plurality of stator coils 102 annularly arranged on the stator disc 101, the stator coils 102 are solidified in the stator disc 101, and specifically, gaps exist among the single-sided rotor yoke disc 501, the winding stators 10 and the double-sided rotor yoke disc 601.
The fixing bolt 7 in this embodiment includes a screw rod and a nut, the screw rod passes through the end cover 1, the casing 2 and the double-sided rotor magnetic yoke disc 601, and two ends of the screw rod extend out of the end covers 1 at two sides respectively and are in threaded connection with the nut.
When the unmanned aerial vehicle is in operation, one end of an electric wire penetrates into the wire outlet hole 11 in advance to be connected with the stator coil 102 to supply power to the stator coil 102, the other end of the electric wire penetrates out of the wire outlet hole 11 to be connected with a power supply, then the motor is installed on the unmanned aerial vehicle through the motor shaft 8, when the unmanned aerial vehicle is in operation, a rotating magnetic field is formed among the single-side magnetic yoke permanent magnet rotor, the winding stator 10 and the double-side magnetic yoke permanent magnet rotor, and the rotating magnetic field acts on the single-side magnetic yoke permanent magnet rotors on two sides and the double-side.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (6)
1. An outer-rotating multistage parallel-serial permanent magnet coreless motor for an unmanned aerial vehicle comprises a housing part, a rotor part and a stator part, and is characterized in that the housing part comprises two end covers (1) and a housing (2) which are distributed at intervals, a plurality of heat dissipation holes (3) are circumferentially formed in each end cover (1), the housing (2) is coaxially arranged on the end surfaces of the two end covers (1), and a mounting hole (4) for mounting a rotor wing of the unmanned aerial vehicle is formed in one end cover (1);
the rotor part comprises a single-sided magnetic yoke permanent magnet rotor and a double-sided magnetic yoke permanent magnet rotor, the single-sided magnetic yoke permanent magnet rotor is respectively arranged inside the two end covers (1), the double-sided magnetic yoke permanent magnet rotor is positioned between the single-sided magnetic yoke permanent magnet rotors on the two sides, and the double-sided magnetic yoke permanent magnet rotor, the two end covers (1) and the machine shell (2) are connected and fastened through a plurality of fixing bolts (7);
the motor comprises a stator part and is characterized in that the stator part comprises a motor shaft (8), a shaft sleeve (9) and two winding stators (10), the motor shaft (8) is rotatably connected with an end cover (1), one end of the motor shaft (8) extends out of the end cover (1) at the other side, a wire outlet hole (11) is formed in the motor shaft (8), the motor shaft (8) is fixedly provided with the winding stators (10) through the shaft sleeve (9), and the two winding stators (10) are respectively positioned between a single-side magnetic yoke permanent magnet rotor and a double-side magnetic yoke permanent magnet rotor.
2. An external-rotation multistage parallel-serial permanent magnet coreless motor for an unmanned aerial vehicle according to claim 1, wherein the housing (2) is circular, a cavity is formed inside the housing (2) after the end cover (1) is connected with the housing, the rotor portion and the stator portion are both located in the cavity, and one end of the motor shaft (8) penetrates through the end cover (1) at the other end and extends out of the cavity.
3. The external-rotation multistage parallel-series permanent magnet coreless motor for the unmanned aerial vehicle as claimed in claim 1, wherein the single-sided yoke permanent magnet rotor comprises a single-sided rotor yoke disc (501) and a plurality of permanent magnets circumferentially arranged on an inner side surface of the single-sided rotor yoke disc (501), and the single-sided rotor yoke disc (501) is connected with the end cover (1) through a screw (12); the double-sided magnetic yoke permanent magnet rotor comprises a double-sided rotor magnetic yoke disc (601) and a plurality of permanent magnets which are annularly arranged on two end faces of the double-sided rotor magnetic yoke disc (601).
4. An external rotor multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle according to claim 3, wherein a gap exists between the single-sided rotor yoke disc (501), the winding stator (10) and the double-sided rotor yoke disc (601); the permanent magnets are in a fan ring shape, and N poles and S poles of the permanent magnets are distributed in an annular and alternate mode.
5. An external-rotation multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle as claimed in claim 1, wherein the motor shaft (8) is connected to the end cap (1) through a ball bearing (13), the number of the shaft sleeves (9) is two, the shaft sleeves (9) are connected to the motor shaft (8) in a key manner, and the winding stators (10) are respectively disposed on the two shaft sleeves (9); the wire outlet holes (11) are axially distributed along the motor shaft (8) and then radially distributed to extend out of the motor shaft (8).
6. An external rotor multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle as claimed in claim 5, wherein said winding stator (10) includes a stator plate (101) and a plurality of stator coils (102) circumferentially arranged on the stator plate (101), said stator coils (102) being solidified in the stator plate (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922417410.7U CN211089408U (en) | 2019-12-30 | 2019-12-30 | Outer-rotating multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922417410.7U CN211089408U (en) | 2019-12-30 | 2019-12-30 | Outer-rotating multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle |
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| CN211089408U true CN211089408U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922417410.7U Active CN211089408U (en) | 2019-12-30 | 2019-12-30 | Outer-rotating multistage parallel-serial permanent magnet coreless motor for unmanned aerial vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112104180A (en) * | 2020-08-21 | 2020-12-18 | 石镇德 | Asynchronous starting permanent magnet auxiliary type synchronous reluctance motor |
| CN113648566A (en) * | 2021-09-15 | 2021-11-16 | 江苏智远智能驱动技术研究院有限公司 | Special motor that security performance is high |
| CN113824244A (en) * | 2021-08-30 | 2021-12-21 | 鑫磊压缩机股份有限公司 | Spinning device adopting coreless winding |
-
2019
- 2019-12-30 CN CN201922417410.7U patent/CN211089408U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112104180A (en) * | 2020-08-21 | 2020-12-18 | 石镇德 | Asynchronous starting permanent magnet auxiliary type synchronous reluctance motor |
| CN113824244A (en) * | 2021-08-30 | 2021-12-21 | 鑫磊压缩机股份有限公司 | Spinning device adopting coreless winding |
| CN113648566A (en) * | 2021-09-15 | 2021-11-16 | 江苏智远智能驱动技术研究院有限公司 | Special motor that security performance is high |
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