CN206389198U - Energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine - Google Patents
Energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine Download PDFInfo
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- CN206389198U CN206389198U CN201720083590.8U CN201720083590U CN206389198U CN 206389198 U CN206389198 U CN 206389198U CN 201720083590 U CN201720083590 U CN 201720083590U CN 206389198 U CN206389198 U CN 206389198U
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Abstract
The utility model is related to technical field of motors, more particularly to a kind of energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine, including stator support frame, stator module, rotor back iron, permanent magnet, housing and rotating shaft.Energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine of the present utility model, only need the unmanned plane external rotor permanent magnet synchronous machine that very little electric current can just start, reduce instant starting currents, motor uses amorphous alloy strips as the stator-rotor iron core of motor, reduction core loss is to reduce loss of electric machine heating, so as to improve efficiency, extension motor endurance.
Description
Technical field
The utility model is related to technical field of motors, more particularly to a kind of energy-efficient plant protection unmanned plane with outer rotor forever
Magnetic-synchro motor.
Background technology
China is as large agricultural country, and 1,800,000,000 mu of basic farmlands need substantial amounts of agricultural plant protection operation, the annual agriculture of China every year
Medicine Poisoning Number has 100,000 crowd, fatal rate about 20%.The number of dying of illness that residues of pesticides and pollution are caused there is no official to unite so far
Count, presumably even more one surprising numeral.
Plant protection unmanned plane serving agriculture is developed rapidly in developed countries such as Japan, the U.S..Nineteen ninety, Japanese mountain leaf
Company takes the lead in releasing first unmanned plane in the world, is mainly used in spraying insecticide.South China is initially applied to paddy fields
Pesticide spraying.2016, agricultural plant protection unmanned plane was increasingly becoming industry new lover, and various regions occur being used to plant using unmanned plane successively
The case of guarantor.According to Ministry of Agriculture's recent statistics, by June 5th, 2016, the company that China produces professional unmanned plane had more than 300
Family, wherein there is family more than 200 to be plant protection unmanned plane manufacturer, produces all kinds of plant protection unmanned planes totally 178 kinds, recoverable amount exceedes
5000 framves.Flourish in Chinese unmanned plane market.
Current plant protection unmanned plane is typically divided to oil dynamic and electronic two kinds, when servomotor has price big compared with high but load-carrying, operation
Between it is long, the characteristics of require high to operation, generally single rotor；It is electronic to be divided into helicopter and the main trend of many rotors two, in China
For agricultural plant protection using many rotors as Main Trends of The Development, because multi-rotor unmanned aerial vehicle is simple to operate, technical difficulty is low, flight is steady
It is fixed and with low cost.Using the even 8 axles design of 4 axles, 6 axles more than general multi-rotor unmanned aerial vehicle, motor direct-drive blade is utilized
Rotation obtains lift load-carrying operation, direct current is converted into high-frequency alternating current using Brushless DC drive system each motor is entered
Row driving.Maximum buoyance lift ability, i.e. carrying force are obtained according to the cooperation of blade and rotating speed.Motor is played electricity in the entire system
The key player of kinetic energy can be converted to, quality and the stability of motor performance directly determine the final performance of unmanned plane.
Motor performance is mainly embodied by the reactive loss degree of motor, and the loss of electric machine is damaged by iron loss, copper loss, machinery
The composition such as rubbed with wind, under current level of processing, iron loss and copper loss often turn into the topmost composition of the loss of electric machine, for low
For frequency motor both loss ratios quite, but when excitation frequency is increased to more than 200Hz, silicon steel motor must take into consideration due to
Core loss is excessive to cause the degradation problem of heating tape, and understands more serious with the rise heating of frequency.
Multiaxis unmanned plane motors all at present uses silicon steel sheet as stator core and provides magnetic circuit for winding, in order to subtract
Few motor deadweight, it is many using by design of electrical motor, into the scheme of many pole external-rotors, and unmanned plane is more in order to obtain larger climbing power
Using the means for improving motor speed, so motor driving can only use high frequency (ranging up to 3000Hz) scheme.Many rotors
Motor stator material is used as using the silicon steel sheet of 0.2mm thickness more than unmanned plane motor.
Electric machine iron core loss includes magnetic hystersis loss and misfortune stream two aspects of loss, and this partition losses is converted into heat energy, made
Device efficiency reduction, temperature rise, therefore the core loss for the reduction motor that should try one's best in design of electrical motor.Generally go through change
The means such as material composition, internal organizational structure increase magnetic conductivity, reduction coercivity to reduce magnetic hystersis loss, by increasing material electricity
Resistance rate and reduction material thickness reduction eddy-current loss.
Because silicon steel motor is driven to three-phase alternating current high-frequency drive, instant starting currents are than larger, and even stable state is several
Times, silicon steel unmanned plane motor invariably accompany in use heating serious, inefficiency, load-carrying not enough, endurance not
The shortcoming of foot.It is exactly because due to electric machine iron core own loss mistake after being improved due to the excitation frequency of motor to entangle its basic reason
Cause many electric energy to be used for excitation loss greatly to generate heat and be wasted, and may proceed to deteriorate iron after electric machine iron core heating
The magnetic property of core also increases copper loss simultaneously so as to further increase loss, this vicious circle.Usual silicon steel is unmanned electromechanical
Machine is made up of silicon steel stator, winding, stator case, permanent magnet, rotor case, axle bumper, is characterized in that the high silicon steel of high-frequency loss is determined
Son and the direct Surface Mount of permanent magnet are in rotor case, and housing is often aluminum alloy material, and motor flux leakage is serious, is also to cause motor magnetic
One reason of degraded performance.
Utility model content
The technical problems to be solved in the utility model is：It is big in order to solve unmanned electric machine iron core loss in the prior art, leak
The serious technical problem of magnetic, the utility model provides a kind of energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine.
The utility model solves the technical scheme that its technical problem used：A kind of energy-efficient plant protection unmanned plane is used
External rotor permanent magnet synchronous machine, including stator support frame, stator module, rotor back iron, permanent magnet, housing and rotating shaft, it is described
Stator module is sleeved on stator support frame, stator support frame by bearing holder (housing, cover) in the rotating shaft, rotor back iron in a ring, rotor
Back iron is sleeved on the outer ring of stator module, and permanent magnet is uniformly arranged the inner ring in rotor back iron, and housing is fixedly set in rotating shaft
On, and housing is fixedly connected with the rear end face of rotor back iron, the rotor back iron is the ring wound by amorphous alloy strips
Shape rotor back iron, the radial section of ring-shaped rotor back iron is in multi-layer annular structure.Rotor is arranged on into stator module periphery can
Bigger torsion is obtained, so as to obtain bigger rising buoyancy, it is to avoid the lengthy and jumbled gear of internal rotor.In addition, non-crystaline amorphous metal
Also known as glassy metal, is a kind of excellent green engineering material of soft magnet performance.The production of non-crystaline amorphous metal uses planar flow casting technology,
With about 1,000,000 degree per second of cooldown rate from molten steel to strip finished product one-shot forming, general cold rolled metal manufacture work is eliminated
Many intermediate steps in skill, greatly save the energy.Amorphous alloy material is compared with traditional silicon steel, with higher resistivity
Thinner thickness of strip, so the core loss with equivalent to silicon steel about 1/8.And wider frequency (50~
Amorphous iron loss ascensional range very little in the range of 5000Hz), work magnetic is close almost unchanged, and this crosses high workload magnetic with silicon steel high-frequency loss
It is close it is low be it is entirely different, amorphous magnetic conductivity is about 2~3 times of silicon steel, coercivity only have its 1/5, can be largely
Upper reduction starting current.
Further, specifically, the stator module includes stator core and iron core winding.
The thickness range of the amorphous alloy strips is：0.015-0.1mm.Strip is more beneficial for the reduction of iron loss, because
The resistance of more thin material itself is bigger, and the eddy-current loss produced under high frequency will be smaller, and iron loss is also smaller.
The outside of the housing is also fixedly connected with blade.Enable to rotating shaft makes revolving force be converted to rising buoyancy.
In order to mitigate motor weight and be easy to radiating, the stator support frame has the sleeve part of annular, sleeve part inner ring
By bearing holder (housing, cover) on the front end of rotating shaft, the outer ring of sleeve part front end has the clamshell of hollow out, and clamshell is located at stator module
Front end face on.
The beneficial effects of the utility model are that energy-efficient plant protection unmanned plane of the present utility model is same with external rotor permanent magnet
Motor is walked, the unmanned plane external rotor permanent magnet synchronous machine for only needing very little electric current just to start reduces instant starting currents, electricity
Machine uses amorphous alloy strips as the stator-rotor iron core of motor, and reduction core loss is to reduce loss of electric machine heating, so as to carry
High efficiency, extension motor endurance.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the knot of the energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine optimum embodiment of the utility model
Structure schematic diagram.
Fig. 2 is Fig. 1 configuration schematic diagram.
Fig. 3 is the another of the energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine optimum embodiment of the utility model
One configuration schematic diagram.
In figure：1st, stator support frame, 11, sleeve part, 12, clamshell, 2, stator module, 21, stator core, 3, the rotor back of the body
Iron, 4, permanent magnet, 5, housing, 6, rotating shaft, 7, blade.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As Figure 1-3, be the utility model optimum embodiment, a kind of energy-efficient plant protection unmanned plane with outer rotor forever
Magnetic-synchro motor, including stator support frame 1, stator module 2, rotor back iron 3, permanent magnet 4, housing 5 and rotating shaft 6, stator pack
Part 2 is sleeved on stator support frame 1, stator support frame 1 by bearing holder (housing, cover) in the rotating shaft 6, rotor back iron 3 in a ring, rotor
Back iron 3 is sleeved on the outer ring of stator module 2, and permanent magnet 4 is uniformly arranged the inner ring in rotor back iron 3, and housing 5 is fixedly set in
In rotating shaft 6, and housing 5 is fixedly connected with rotor back iron 3, and rotor back iron 3 is that the annular wound by amorphous alloy strips turns
Sub- back iron, the radial section of ring-shaped rotor back iron is in multi-layer annular structure.Stator module 2 include stator core 21 and iron core around
Group.The thickness range of amorphous alloy strips is：0.015-0.1mm.The outside of housing 5 is also fixedly connected with blade 7.
Stator support frame 1 has the sleeve part 11 of annular, and the inner ring of sleeve part 11 is mounted in the front end of rotating shaft 6 by bearing holder (housing, cover)
On, the outer ring of the front end of sleeve part 11 has the clamshell 12 of hollow out, and clamshell 12 is located on the front end face of stator module 2.
The energy-efficient plant protection unmanned plane of the utility model with external rotor permanent magnet synchronous machine using amorphous stator core 21,
Amorphous iron core winding (being not drawn into figure), amorphous stator support frame 1, amorphous permanent magnet 4, amorphous rotor are wound with stator core 21
Back iron 3 and amorphous housing 5 and axle bumper device.
Amorphous iron core winding is according to certain rule wound on the teeth portion of amorphous stator core 21, and stator core 21 is comprising extremely
Few 1 pair of tooth, leaching insulation adhesive curing；Stator core 21 is fixed on stator support frame 1, and shell axle center part has the axle of support armature spindle
Hold；At least 1 pair tile permanent magnet 4 (an inside N poles with a S extremely a pair), N poles turn with S interpolars every Surface Mount in amorphous
On the inner ring surface of sub- back iron 3；The outer ring surface of amorphous rotor back iron 3 is fixed on housing 5；The axle of housing 5 can be assemblied in stator casing
In the bearing of axle portion, the head passed in armature spindle can install fixing axle blocking means.
Stator core 21 is fixedly connected with stator support frame 1, is not rotated during work, and the iron core winding on stator core 21 leads to
Electric energy enough produces rotating excitation field, and rotating excitation field rotor driven back iron 3 is rotated, and housing 5 is to be fixedly connected with rotor back iron 3, housing 5
It is fixedly connected with rotating shaft 6, rotor back iron 3 can drive rotating shaft 6 and blade 7 to rotate.
Appropriate adjustment (including motor is carried out to unmanned plane with external rotor permanent magnet synchronous machine according to the characteristic of non-crystalline material
Size, driver design etc.), with reach bigger torque (buoyancy) is resulted under equivalent motor weight, rotating speed, it is higher
Efficiency and longer endurance.
The motor is used for many rotor plant protection unmanned planes, former silicon steel motor and the amorphous of the same appearance and size of our independent researches
Motor contrast test is as follows：
The patent be equally applicable to various different purposes unmanned plane external rotor permanent magnet synchronous machine (for example take photo by plane, model plane,
Toy, cable erection etc. have mutually isostructural unmanned plane motor).
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (5)
1. a kind of energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine, it is characterised in that：Including stator support frame
(1), stator module (2), rotor back iron (3), permanent magnet (4), housing (5) and rotating shaft (6), stator module (2) suit
On stator support frame (1), stator support frame (1) by bearing holder (housing, cover) in the rotating shaft (6), rotor back iron (3) in a ring, rotor
Back iron (3) is sleeved on the outer ring of stator module (2), and permanent magnet (4) is uniformly arranged the inner ring in rotor back iron (3), housing (5)
It is fixedly set in rotating shaft (6), and housing (5) is fixedly connected with rotor back iron (3), the rotor back iron (3) is to be closed by amorphous
The ring-shaped rotor back iron of gold ribbon material winding, the radial section of ring-shaped rotor back iron is in multi-layer annular structure.
2. energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine as claimed in claim 1, it is characterised in that：Institute
Stating stator module (2) includes stator core (21) and iron core winding.
3. energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine as claimed in claim 1, it is characterised in that：Institute
The thickness range for stating amorphous alloy strips is：0.015-0.1mm.
4. energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine as claimed in claim 1, it is characterised in that：Institute
The outside for stating housing (5) is also fixedly connected with blade (7).
5. energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine as claimed in claim 1, it is characterised in that：Institute
Stating stator support frame (1) has the sleeve part (11) of annular, and sleeve part (11) inner ring is mounted in the front end of rotating shaft (6) by bearing holder (housing, cover)
On, the outer ring of sleeve part (11) front end has the clamshell (12) of hollow out, and clamshell (12) is located at the front end face of stator module (2)
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083590.8U CN206389198U (en) | 2017-01-22 | 2017-01-22 | Energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083590.8U CN206389198U (en) | 2017-01-22 | 2017-01-22 | Energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206389198U true CN206389198U (en) | 2017-08-08 |
Family
ID=59494615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720083590.8U Expired - Fee Related CN206389198U (en) | 2017-01-22 | 2017-01-22 | Energy-efficient plant protection unmanned plane external rotor permanent magnet synchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206389198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399431A (en) * | 2017-09-19 | 2017-11-28 | 合肥工业大学 | Applied to the motor on electric drive helicopter tail rotor and reducer integrated device and its control method |
-
2017
- 2017-01-22 CN CN201720083590.8U patent/CN206389198U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399431A (en) * | 2017-09-19 | 2017-11-28 | 合肥工业大学 | Applied to the motor on electric drive helicopter tail rotor and reducer integrated device and its control method |
| CN107399431B (en) * | 2017-09-19 | 2019-07-19 | 合肥工业大学 | Applied to the motor and reducer integrated device and its control method on electric drive helicopter tail rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20220122 |