CN210693739U - Rare earth permanent magnet disc type motor for unmanned aerial vehicle - Google Patents
Rare earth permanent magnet disc type motor for unmanned aerial vehicle Download PDFInfo
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- CN210693739U CN210693739U CN201921878212.4U CN201921878212U CN210693739U CN 210693739 U CN210693739 U CN 210693739U CN 201921878212 U CN201921878212 U CN 201921878212U CN 210693739 U CN210693739 U CN 210693739U
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 26
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 26
- 230000005389 magnetism Effects 0.000 claims abstract description 20
- 241000463219 Epitheca Species 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model belongs to a rare earth permanent magnet disc type motor, in particular to a rare earth permanent magnet disc type motor for an unmanned aerial vehicle, which comprises a fixed shaft and a rotary shell arranged on the fixed shaft through a bearing, the fixed stator disc that is provided with on the fixed axle, the stator disc sets up in rotatory shell, and rotatory shell includes epitheca and inferior valve, and epitheca and inferior valve are close to the terminal surface of stator disc, all are that the annular array is provided with a plurality of tombarthite permanent magnetism piece, and two adjacent and relative tombarthite permanent magnetism piece are extremely opposite, the utility model discloses a set up tombarthite permanent magnetism piece in rotatory shell and just rotate along with motor work as rotor assembly, with the fixed stiff end of stator disc and fixed axle fixed, the very big axial dimensions who has reduced the motor of combination of rotatory shell and tombarthite permanent magnetism piece, the tombarthite permanent magnetism piece and the stator disc combination of motor guarantee the normal rotation of motor, ensure that the motor can regard as unmanned aerial.
Description
Technical Field
The utility model belongs to a tombarthite permanent magnetism disk motor specifically is to a tombarthite permanent magnetism disk motor for unmanned aerial vehicle.
Background
At present, the motor that drives the unmanned aerial vehicle screw generally sets up inside the unmanned aerial vehicle fuselage, and the output shaft of its motor is stretching out fuselage installation screw part, adopts this method to have following several drawbacks: 1, the inner space of the unmanned aerial vehicle body is occupied, and from another angle, the unmanned aerial vehicle body is forced to be enlarged, which is not beneficial to the design of the unmanned aerial vehicle; 2, the motor is arranged in the unmanned aerial vehicle, the heat dissipation effect is poor, and a heat dissipation device needs to be additionally arranged to ensure the normal work of the motor; 3 the maintenance and the dismounting are inconvenient, and the motor can be taken down only by dismounting the unmanned aerial vehicle.
The application number is CN 201820419499.3's chinese utility model patent application discloses a disk directly drives motor and industry ceiling fan, and above-mentioned disk directly drives the motor and includes pivot, upper cover, casing, drain pan, support hub and stator core, and the pivot is connected with the cooperation of supporting the hub, and both ends are equipped with suit respectively and are changeing epaxial front bearing, rear bearing around supporting the hub, upper cover, casing and drain pan connect gradually and form the oblate disk peripheral structure that the motor was directly driven to the disk, and stator core establishes to the annular structure pressure equipment on supporting the hub, is equipped with the permanent magnet between stator core and the casing, and above-mentioned motor is inside to be provided with and to support hub, stator core and cylindric permanent magnet, and its structural dimension of motor is equally great, can't accomplish light in weight, small, can't reach the requirement that is used for unmanned aerial vehicle propeller.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a light in weight, small and radiating effect are good to be used for unmanned aerial vehicle's tombarthite permanent magnetism disk motor.
The utility model discloses an content includes the fixed axle, sets up the rotatory shell on fixed epaxial through the bearing, fixed being provided with the stator disc on the fixed axle, the stator disc sets up in rotatory shell, and rotatory shell includes epitheca and inferior valve, and the terminal surface that epitheca and inferior valve are close to the stator disc all is that annular array is provided with a plurality of tombarthite permanent magnetism piece, and two adjacent and relative tombarthite permanent magnetism piece are extremely opposite.
Furthermore, the outer edges of the upper shell and the lower shell are provided with spacer bushes.
Furthermore, an air inlet hole penetrating to the stator disc is formed in the upper shell and the lower shell, an air outlet hole is formed in the outer ring of the spacer sleeve, and a gap between the stator disc and the rare earth permanent magnet block is communicated with the air inlet hole and the air outlet hole.
Furthermore, the air inlet holes and the air outlet holes are arranged in a plurality of groups in an annular array along the axis of the fixed shaft.
The utility model discloses still include the fixed lid of stator fixing base and stator, the stator dish is fixed to be set up between the fixed lid of stator fixing base and stator, and the stator fixing base is connected with the fixed axle key.
Furthermore, the stator fixing seat and the stator disc are fixed through a limiting boss.
Furthermore, the fixed shaft is provided with a locking nut at one side of the stator fixed cover.
Furthermore, the fixed shaft penetrates through the lower shell, and the end part of the fixed shaft is fixedly provided with a motor fixing seat.
Furthermore, the end of the upper shell is fixedly provided with a connecting flange.
Furthermore, the fixed shaft is a hollow shaft, a wire guide hole penetrating to the stator disc is formed in the fixed shaft, and a wire inlet hole is formed in the fixed shaft and located outside the lower shell.
The utility model has the advantages that the rare earth permanent magnet blocks are arranged in the rotating shell to be used as the rotor assembly and rotate along with the work of the motor, the stator disc and the fixed shaft are fixed to be used as the fixed end, and the axial size of the motor is greatly reduced; by arranging the shaft sleeve, the weight of the motor is reduced, and the cost is reduced; the air inlet hole and the air outlet hole are arranged, so that the motor can be cooled while rotating, and the heat dissipation directly dissipates two heating sources, namely a stator disc and a rare earth permanent magnet of the motor, and the heat dissipation effect is good; the stator fixing seat and the stator fixing cover are arranged, so that the mounting difficulty of the stator disc is simplified, and the stator disc is stably and reliably fixed; the motor fixing seat and the connecting flange are arranged, so that the motor can be conveniently fixed and connected with output equipment.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Fig. 3 is a top view of the present invention.
In the figure, 1 upper shell, 2 upper rare earth permanent magnet, 3 space ring, 4 lower shell, 5 lower rare earth permanent magnet, 6 stator disc, 7 stator fixing seat, 8 stator fixing cover, 9 standard flat key, 10 motor fixing seat, 11 wire inlet hole, 12 fixing shaft, 13 lower bearing, 14 locking nut, 15 air inlet hole, 16 air outlet hole, 17 lightening groove, 18 shaft snap spring, 19 upper bearing, 20 wire hole, 21 hole snap spring, 22 connecting flange, 23 spacing boss, 24 flange screw hole, 25 shaft fixing bolt and 26 shell fixing bolt.
Detailed Description
As shown in fig. 1-3, the utility model discloses a fixed axle 12, set up the rotating housing on fixed axle 12 through the bearing, fixed being provided with stator disc 6 on the fixed axle 12, stator disc 6 sets up in rotating housing, and rotating housing includes epitheca 1 and inferior valve 4, and the terminal surface that epitheca 1 is close to stator disc 6 is that the annular array bonds and is provided with rare earth permanent magnetism piece 2 on a plurality of, and inferior valve 4 is the terminal surface that is close to stator disc 6 and is rare earth permanent magnetism piece under the annular array bonding and be provided with a plurality of, and two adjacent and relative rare earth permanent magnetism piece are extremely opposite, have certain clearance between rare earth permanent magnetism piece and the stator disc 6 on epitheca 1 and the inferior valve 4, and the clearance equals.
One end of the upper shell 1 is provided with a bearing mounting step, and an upper bearing 19 is arranged in the step; a shaft clamp spring 18 is arranged in the fixed shaft 12 at the upper bearing 19 and used for limiting the axial displacement of the upper bearing 19 towards one side of the connecting flange 22, and a hole clamp spring 21 is also arranged in the bearing mounting step and used for limiting the axial displacement of the upper bearing 19 towards one side of the lower bearing 13; one end of the lower shell 4 is provided with a bearing mounting step and a lower bearing 13 is arranged in the step.
The utility model discloses a set up tombarthite permanent magnetism piece as rotor assembly and rotatory along with motor work in rotatory shell, with stator disc 6 and fixed axle 12 fixed as the stiff end, the very big axial dimensions who has reduced the motor of combination of rotatory shell and tombarthite permanent magnetism piece, the tombarthite permanent magnetism piece and the stator disc combination of motor guarantee the normal rotation of motor, ensure that the motor can regard as unmanned aerial vehicle screw driven power.
In order to facilitate the fixed connection of the upper shell 1 and the lower shell 4 and simultaneously to design consideration of light weight, the outer edges of the upper shell 1 and the lower shell 4 are provided with the spacer bushes 3, the upper shell 1, the spacer bushes 3 and the lower shell 4 are fixed through the shell fixing bolts 26, the spacer bushes 3 can be made of light weight materials, and the weight of the whole motor is reduced; and the upper shell 1 and the lower shell 4 are also provided with lightening grooves at the position of the spacer 3, so that the weight of the motor is further reduced, and the mounting position is also provided for the stator disc 6.
The upper shell 1 and the lower shell 4 are provided with air inlet holes 15 penetrating through the stator disc 6, air outlet holes 16 are formed in the outer ring of the spacer sleeve 3, a gap between the stator disc 6 and the rare earth permanent magnet block is communicated with the air inlet holes 15 and the air outlet holes 16, when the motor runs, the upper shell 1 and the lower shell 4 rotate with the rare earth permanent magnet block to drive the air at the back of the motor to generate negative pressure in a rotating mode, pressure difference is formed between the inside and the outside of the motor, air outside the motor enters the motor through the air inlet holes 15, the air is discharged from the air outlet holes 16 through the gap between the rare earth permanent magnet block and the stator disc 3 to take away heat generated inside the motor, the heat of a heat source inside the motor is directly taken away, the heat dissipation effect is greatly improved, and in order to prolong the service life of the motor, isolating nets used for preventing dust from flying in are further arranged.
In order to further improve the heat dissipation effect, the air inlet holes 15 and the air outlet holes 16 are arranged in a plurality of groups along the axis of the fixed shaft 12 in an annular array mode, the air inlet holes 15 and the air outlet holes 16 are arranged in a plurality of groups in an annular array mode, the air inflow and the air outflow of heat dissipation are greatly increased, and the heat dissipation effect is improved.
The utility model discloses still include stator fixing base 7 and the fixed lid 8 of stator, stator dish 6 is fixed to be set up between stator fixing base 7 and the fixed lid 8 of stator, and electronic disc 6 is fixed through stator fixing base 7 and the fixed lid 8 of stator, has simplified stator dish 6's the dismouting degree of difficulty, as figure 2, wherein fixed axle 12 is provided with the step with 7 cooperation departments of stator fixing base, and the one end block of stator fixing base 7 is spacing to stator fixing base 7, and stator fixing base 7 is connected through standard flat key 9 with fixed axle 12.
Stator fixing base 7 and stator dish 6 are fixed through spacing boss 23, and spacing boss 23 prevents that 6 axial rotations of stator dish from carrying out the fixed spacing of axis direction to stator dish 6, and stator fixed cover 8 and stator dish 6 are provided with spacing boss 23 equally, further increase structural strength, the stator of being convenient for simultaneously fixes the installation location of cover 8.
The fixed shaft 12 is provided with a locking nut 14 on one side of the stator fixing cover 8, the locking nut 14 axially positions the stator fixing cover 8 to prevent the stator fixing cover 8 from axially moving, and two locking nuts 14 can be used for double-nut locking and fixing.
For the convenience of fixed motor, fixed axle 12 runs through inferior valve 4, and the end fixing is provided with motor fixing base 10, and motor fixing base 10 is used for fixing this motor and sets up at the mounted position, for example unmanned aerial vehicle's screw position, and motor fixing base 10 is fixed through axle fixing bolt 25 with fixed axle 12, is provided with the screw hole that is used for fixed mounting on the motor fixing base 10.
In order to facilitate connecting the driving part, the end fixing of the upper shell 1 is provided with a connecting flange 22, and the connecting flange 22 is provided with a flange screw hole 24 which can be used for connecting and fixing the propeller of the unmanned aerial vehicle. The arrangement of the connecting flange 22 improves the expandability of the motor.
In order to provide a circuit wiring channel, the fixed shaft 12 is a hollow shaft, a wire guide hole 20 penetrating to the stator disc 6 is formed in the fixed shaft 12, a wire inlet hole 11 is formed in the fixed shaft 12 and located outside the lower shell 4, and an electric wire penetrates through the wire inlet hole 11 and is connected to the inside of the motor through the wire guide hole 20.
Claims (10)
1. The utility model provides a tombarthite permanent magnetism disk motor for unmanned aerial vehicle, characterized by includes fixed axle (12), sets up the rotating housing on fixed axle (12) through the bearing, fixed being provided with stator disc (6) on fixed axle (12), stator disc (6) set up in rotating housing, and rotating housing includes epitheca (1) and inferior valve (4), and the terminal surface that epitheca (1) and inferior valve (4) are close to stator disc (6) all is the annular array and is provided with a plurality of tombarthite permanent magnetism block, and two adjacent and relative tombarthite permanent magnetism block are opposite extremely.
2. The rare earth permanent magnet disc type motor for the unmanned aerial vehicle as claimed in claim 1, wherein spacer bushes (3) are arranged at the outer edges of the upper shell (1) and the lower shell (4).
3. The rare earth permanent magnet disc type motor for the unmanned aerial vehicle as claimed in claim 2, wherein the upper shell (1) and the lower shell (4) are provided with air inlet holes (15) penetrating to the stator disc (6), the outer ring of the spacer sleeve (3) is provided with air outlet holes (16), and a gap between the stator disc (6) and the rare earth permanent magnet blocks is communicated with the air inlet holes (15) and the air outlet holes (16).
4. A rare-earth permanent-magnet disc motor for unmanned aerial vehicles according to claim 3, wherein the air inlet holes (15) and air outlet holes (16) are arranged in groups along the axis of the fixed shaft (12) in an annular array.
5. The rare earth permanent magnet disc type motor for the unmanned aerial vehicle as claimed in claim 1, further comprising a stator fixing seat (7) and a stator fixing cover (8), wherein the stator disc (6) is fixedly arranged between the stator fixing seat (7) and the stator fixing cover (8), and the stator fixing seat (7) is connected with the fixed shaft (12) in a key manner.
6. A rare earth permanent magnet disc type motor for an unmanned aerial vehicle according to claim 5, wherein the stator fixing seat (7) and the stator disc (6) are fixed by a limit boss (23).
7. A rare earth permanent magnet disc motor for unmanned aerial vehicle according to claim 6, wherein the fixed shaft (12) is provided with a lock nut (14) at one side of the stator fixing cover (8).
8. A rare earth permanent magnet disc type motor for unmanned aerial vehicle according to any of claims 1 to 7, wherein the fixed shaft (12) penetrates through the lower shell (4), and the end part is fixedly provided with a motor fixing seat (10).
9. A rare-earth permanent-magnet disc motor for unmanned aerial vehicles according to claim 8, wherein the end of the upper shell (1) is fixedly provided with a connecting flange (22).
10. The rare earth permanent magnet disc type motor for the unmanned aerial vehicle as claimed in claim 9, wherein the fixed shaft (12) is a hollow shaft, a wire hole (20) penetrating to the stator disc (6) is formed in the fixed shaft (12), and a wire inlet hole (11) is formed in the fixed shaft (12) and located outside the lower shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921878212.4U CN210693739U (en) | 2019-11-01 | 2019-11-01 | Rare earth permanent magnet disc type motor for unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921878212.4U CN210693739U (en) | 2019-11-01 | 2019-11-01 | Rare earth permanent magnet disc type motor for unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210693739U true CN210693739U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921878212.4U Active CN210693739U (en) | 2019-11-01 | 2019-11-01 | Rare earth permanent magnet disc type motor for unmanned aerial vehicle |
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| Country | Link |
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| CN (1) | CN210693739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611412A (en) * | 2019-11-01 | 2019-12-24 | 湖南众联鑫创动力科技有限公司 | A rare-earth permanent disk motor for unmanned aerial vehicles |
-
2019
- 2019-11-01 CN CN201921878212.4U patent/CN210693739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611412A (en) * | 2019-11-01 | 2019-12-24 | 湖南众联鑫创动力科技有限公司 | A rare-earth permanent disk motor for unmanned aerial vehicles |
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