CN207809774U - A kind of unmanned plane - Google Patents
A kind of unmanned plane Download PDFInfo
- Publication number
- CN207809774U CN207809774U CN201820125503.5U CN201820125503U CN207809774U CN 207809774 U CN207809774 U CN 207809774U CN 201820125503 U CN201820125503 U CN 201820125503U CN 207809774 U CN207809774 U CN 207809774U
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- CN
- China
- Prior art keywords
- unmanned plane
- blade
- shaftless screw
- screw paddle
- motor
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Abstract
This application discloses a kind of unmanned planes, including fuselage, propeller and motor, the motor is hollow structure annular in shape without spindle motor, and the propeller is shaftless screw paddle, and the blade outer end of the shaftless screw paddle is fixed on the inner ring rotor of the no spindle motor.The blade outer end of shaftless screw paddle is directly rigidly connected with the rotor of no spindle motor and fixes, and can increase the axial width of blade outer end, and therefore, the vibrations of the higher blade outer end of linear velocity reduce, to reduce noise.The inner end of blade becomes blade tip, and linear velocity is small, is equally beneficial for damping.And air-flow is more suitable after removing shaft, is conducive to reduce noise.
Description
Technical field
The utility model is related to vehicle technology field, more particularly to a kind of unmanned plane.
Background technology
In recent years, unmanned air vehicle technique was fast-developing, especially in civilian unmanned plane field, was increasingly liked by consumer
Love.Unmanned plane includes mainly fuselage, horn and propeller, and propeller is set on horn, and propeller rotation is driven by motor.
Wherein, DC brushless motor is the mainstream motor that current unmanned plane uses comprising rotor, stator and shell.Turn
Son is the permanent magnet around a middle shaft rotation, is connected with shell by bearing.Stator is coil more than two, annular in shape solid
Determine on the shell around rotor.Motor controls inverter input exchange signal by hall device inductiopn rotor position
To motor.Existing unmanned plane is commonly installed DC brushless motor more than two and drives propeller, propeller and DC brushless motor
Shaft connection, by fly control program controlled motor rotating speed achieve the purpose that lifting, pitching, rotation.
But for using the unmanned plane of driven by Brush-Less DC motor propeller, propeller close to motor shaft one
End is known as blade root, and one end far from motor shaft is known as blade tip.In order to increase the rigidity of propeller, blade root axially needs to thicken, but
Blade tip cannot be too thick.Obviously when propeller rotational, most thin blade tip is the maximum place of linear velocity, therefore is easiest to shake,
Bring noise.
Therefore, the vibrating noise for how reducing unmanned plane propeller, becomes that those skilled in the art are urgently to be resolved hurrily to be asked
Topic.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of unmanned plane, to reduce the vibrations of unmanned plane propeller
Noise.
In order to achieve the above objectives, the utility model provides following technical scheme：
A kind of unmanned plane, including fuselage, propeller and motor, the motor are hollow structure annular in shape without spindle motor,
The propeller is shaftless screw paddle, and the inner ring rotor of the no spindle motor is fixed in the blade outer end of the shaftless screw paddle
On.
Preferably, in above-mentioned unmanned plane, the outer end axial width of the blade of the shaftless screw paddle is more than the paddle
The inner end axial width of leaf.
Preferably, in above-mentioned unmanned plane, the blade quantity at least two of the shaftless screw paddle.
Preferably, in above-mentioned unmanned plane, the quantity at least two of the shaftless screw paddle.
Preferably, further include the horn being set on the fuselage in above-mentioned unmanned plane, the no spindle motor and institute
Shaftless screw paddle is stated to be set on the horn.
Preferably, further include the camera being set on the fuselage in above-mentioned unmanned plane.
Preferably, further include the high sensor of survey being set on the fuselage in above-mentioned unmanned plane.
Preferably, in above-mentioned unmanned plane, the battery of the unmanned plane is rechargeable battery or disposable battery.
Compared with prior art, the utility model has the beneficial effects that：
For unmanned plane provided by the utility model using circular hollow structure without spindle motor, propeller is shaftless screw paddle,
The blade outer end of shaftless screw paddle is fixed on the inner ring rotor of no spindle motor.Therefore, the blade outer end of shaftless screw paddle is direct
It is rigidly connected and fixes with the rotor of no spindle motor, the axial width of blade outer end can be increased, therefore, the higher blade of linear velocity
The vibrations of outer end reduce, to reduce noise.The inner end of blade becomes blade tip, and linear velocity is small, is equally beneficial for damping.And
Air-flow is more suitable after removing shaft, is conducive to reduce noise.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of structural schematic diagram for unmanned plane that the utility model embodiment provides.
Wherein, 1 it is fuselage, 2 be horn, 3 be no spindle motor, 301 be inner ring rotor, 4 be shaftless screw paddle, 401 is paddle
Leaf.
Specific implementation mode
There is provided a kind of unmanned planes for the core of the utility model, reduce the vibrating noise of unmanned plane propeller.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to FIG. 1, the utility model embodiment provides a kind of unmanned plane, including fuselage 1, propeller and motor,
In, motor is hollow structure annular in shape without spindle motor 3, and propeller is the shaftless screw paddle 4 of not shaft, and shaftless screw paddle
4 401 outer end of blade is fixed on the inner ring rotor 301 of no spindle motor 3.
No spindle motor 3 includes inner ring rotor 301, stator and shell.Its inner ring rotor 301 be annular shape, by bearing with
Shell is connected.Stator is similarly cyclic annular and fixes on the shell.It rotates, is formed to inner ring rotor through magnetic fields after energization
301 driving force.Stator and enclosure are hollow space, the blade 401 for installing shaftless screw paddle 4.
It is fixed since 401 outer end of blade of shaftless screw paddle 4 is directly rigidly connected with the inner ring rotor 301 of no spindle motor 3,
The axial width of 401 outer end of blade can be increased, it therefore reduces the vibrations of highest 401 outer end of blade of linear velocity, to
Reduce noise.The inner end of blade 401 becomes blade tip, and linear velocity is small, is equally beneficial for damping.And air-flow is more after removing shaft
It is suitable, be conducive to reduce noise.
Further, in this embodiment, the outer end axial width of the blade 401 of shaftless screw paddle 4 is more than the interior of blade 401
Axial width is held, while increasing by 401 outer end rigidity of blade, mitigates the weight of 401 inner end of blade, further decreases vibrations and make an uproar
Sound.
In the present embodiment, 401 quantity at least two of blade of each shaftless screw paddle 4, and be arranged symmetrically, to improve
The uniformity and stationarity that shaftless screw paddle 4 rotates.Preferably, 401 quantity of blade of shaftless screw paddle 4 be three, four, five
It is a or more.
In the present embodiment, the quantity at least two of shaftless screw paddle 4, each shaftless screw paddle 4 correspond to and a nothing
Spindle motor 3 connects.The quantity of shaftless screw paddle 4 be specially two, three, four, five, six or more, shaftless spiral shell
The surrounding in fuselage 1 symmetrically is arranged in rotation paddle 4.
Further, unmanned plane further includes the horn 2 being set on fuselage 1 in the present embodiment, is corresponded on each horn 2
Setting one is without spindle motor 3 and shaftless screw paddle 4, to further increase the flight stability of unmanned plane.
In the present embodiment, unmanned plane further includes the camera being set on fuselage 1, and high-altitude or low is carried out by camera
The floating shooting of hovering.
In the present embodiment, unmanned plane further includes the high sensor of survey being set on fuselage 1, can be by surveying high sensor
Detect the flying height of unmanned plane.
In the present embodiment, the battery of unmanned plane is rechargeable battery or disposable battery, and rechargeable battery can charge,
Energy saving, certainly, quick-replaceable may be implemented in disposable battery.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (8)
1. a kind of unmanned plane, including fuselage, propeller and motor, which is characterized in that the motor is hollow structure annular in shape
Without spindle motor, the propeller is shaftless screw paddle, and the no spindle motor is fixed in the blade outer end of the shaftless screw paddle
Inner ring rotor on.
2. unmanned plane according to claim 1, which is characterized in that the outer end axial width of the blade of the shaftless screw paddle
More than the inner end axial width of the blade.
3. unmanned plane according to claim 1, which is characterized in that the blade quantity of the shaftless screw paddle is at least two
It is a.
4. unmanned plane according to claim 1, which is characterized in that the quantity at least two of the shaftless screw paddle.
5. unmanned plane according to claim 1, which is characterized in that further include the horn being set on the fuselage, it is described
No spindle motor and the shaftless screw paddle are set on the horn.
6. unmanned plane according to claim 1, which is characterized in that further include the camera being set on the fuselage.
7. unmanned plane according to claim 1, which is characterized in that further include the survey high sensing being set on the fuselage
Device.
8. unmanned plane according to claim 1, which is characterized in that the battery of the unmanned plane is for rechargeable battery or disposably
Battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820125503.5U CN207809774U (en) | 2018-01-25 | 2018-01-25 | A kind of unmanned plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820125503.5U CN207809774U (en) | 2018-01-25 | 2018-01-25 | A kind of unmanned plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207809774U true CN207809774U (en) | 2018-09-04 |
Family
ID=63325016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820125503.5U Active CN207809774U (en) | 2018-01-25 | 2018-01-25 | A kind of unmanned plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207809774U (en) |
-
2018
- 2018-01-25 CN CN201820125503.5U patent/CN207809774U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |