CN207242018U - Propeller, Power Component and aircraft - Google Patents
Propeller, Power Component and aircraft Download PDFInfo
- Publication number
- CN207242018U CN207242018U CN201721218442.9U CN201721218442U CN207242018U CN 207242018 U CN207242018 U CN 207242018U CN 201721218442 U CN201721218442 U CN 201721218442U CN 207242018 U CN207242018 U CN 207242018U
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- Prior art keywords
- blade
- propeller
- paddle
- center
- attack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
- B64C11/20—Constructional features
Abstract
A kind of propeller, Power Component and aircraft.Wherein, the propeller, including：Paddle presss from both sides and blade, and the blade is connected on the paddle folder, and at apart from the center that the paddle presss from both sides for the 21.10% of the radius of the propeller, the angle of attack of the blade is 21 ° ± 2.5 °, and the chord length of the blade is 22.32mm ± 5mm；At apart from the center that the paddle presss from both sides for the 57.14% of the radius of the propeller, the angle of attack of the blade is 16.57 ° ± 2.5 °, and the chord length of the blade is 19.02mm ± 5mm；At apart from the center that the paddle presss from both sides for the 76.19% of the radius of the propeller, the angle of attack of the blade is 12.91 ° ± 2.5 °, and the chord length of the blade is 15.77mm ± 5mm.The utility model can optimize the structure of propeller, improve the flying quality of aircraft.
Description
Technical field
It the utility model is related to aircraft field, more particularly to propeller, Power Component and aircraft.
Background technology
Carry-on propeller, as the important Primary Component of aircraft, it is used for shaft in motor or engine
Rotation be converted into thrust or lift.
Propeller of the prior art, its outer shape is mostly rectangular, its resistance is big, efficiency is low, causes aircraft
Flying speed is small, after boat apart from short, seriously affected the flying quality of aircraft.
Utility model content
The utility model provides a kind of propeller, Power Component and aircraft.
A kind of propeller, including：Paddle presss from both sides and blade, and the blade is connected on the paddle folder, what is pressed from both sides apart from the paddle
Center is at the 21.10% of the radius of the propeller, and the angle of attack of the blade is 21 ± 2.5 °, and the chord length of the blade is
22.32mm±5mm；At apart from the center that the paddle presss from both sides for the 57.14% of the radius of the propeller, the angle of attack of the blade
For 16.57 ° ± 2.5 °, the chord length of the blade is 19.02mm ± 5mm；It is being the propeller apart from the center that the paddle presss from both sides
Radius 76.19% at, the angle of attack of the blade is 12.91 ° ± 2.5 °, and the chord length of the blade is 15.77mm ± 5mm.
Further, at apart from the center that the paddle presss from both sides for the 19.05% of the radius of the propeller, the blade
The angle of attack is 17.73 ° ± 2.5 °, and the chord length of the blade is 15.35mm ± 5mm.
Further, at apart from the center that the paddle presss from both sides for the 95.24% of the radius of the propeller, the blade
The angle of attack is 12.21 ° ± 2.5 °, and the chord length of the blade is 12.33mm ± 5mm.
Further, a diameter of 210mm ± 21mm of the propeller；At the center 40mm pressed from both sides apart from the paddle, institute
The angle of attack for stating blade is 21 °, and the chord length of the blade is 22.32mm；At the center 60mm pressed from both sides apart from the paddle, the blade
The angle of attack be 16.57 °, the chord length of the blade is 19.02mm；At the center 80mm pressed from both sides apart from the paddle, the blade
The angle of attack is 12.91 °, and the chord length of the blade is 15.77mm.
Further, a diameter of 210mm ± 21mm of the propeller；At the center 20mm pressed from both sides apart from the paddle, institute
The angle of attack for stating blade is 17.73 °, and the chord length of the blade is 15.35mm.
Further, a diameter of 210mm ± 21mm of the propeller；At the center 100mm pressed from both sides apart from the paddle, institute
The angle of attack for stating blade is 12.21 °, and the chord length of the blade is 12.33mm.
Further, the blade includes blade face directed downwardly, blade back upward, is connected to the blade back and the blade face one
First lateral margin of side, and it is connected to the second lateral margin of the blade back and the blade face opposite side；The blade face and the blade back
Cross section it is curved, and first lateral margin is located at below second lateral margin.
Further, the first lateral margin evagination of the blade is formed with protrusion.
Further, the blade is included with the connecting pin of paddle folder connection and away from the end of paddle folder, described
The thickness of blade is gradually reduced by the connecting pin to the end.
Further, the protruding parts in the blade at the connecting pin.
Further, the blade is at least two, and at least two blade is in center on the center that the paddle presss from both sides
Symmetrically.
Further, the pitch of the blade is 111.76mm.
A kind of Power Component, including actuator and propeller as described above, the propeller is pressed from both sides by the paddle and institute
State actuator connection.
Further, the actuator is motor, the KV values of the motor for 1400 turns/(minute volt).
A kind of aircraft, including fuselage and Power Component as described above, the Power Component are connected with the fuselage.
Further, the aircraft includes multiple Power Components, and the rotation direction of the multiple Power Component is different.
Further, the aircraft is multi-rotor aerocraft.
The propeller that the utility model embodiment provides, due to being the half of the propeller apart from the center that the paddle presss from both sides
At the 21.10% of footpath, the angle of attack of the blade is 21 ± 2.5 °, and the chord length of the blade is 22.32mm ± 5mm；Apart from institute
The center for stating paddle folder is at the 57.14% of the radius of the propeller, and the angle of attack of the blade is 16.57 ° ± 2.5 °, the paddle
The chord length of leaf is 19.02mm ± 5mm；It is described at apart from the center that the paddle presss from both sides for the 76.19% of the radius of the propeller
The angle of attack of blade is 12.91 ° ± 2.5 °, and the chord length of the blade is 15.77mm ± 5mm.Pass through the different parts to blade
The angle of attack design, therefore resistance of the propeller in rotation process can be reduced, reduce the flight during aircraft flight
Resistance, improves flight efficiency, increases endurance distance, improves the flying quality of aircraft.
Brief description of the drawings
Fig. 1 is a kind of top view for propeller that the utility model embodiment provides.
Fig. 2 is the sectional view for pressing from both sides the D-D sections at the 40mm of center in the propeller of embodiment illustrated in fig. 1 apart from paddle.
Fig. 3 be embodiment illustrated in fig. 1 propeller in apart from paddle folder center 60mm at C-C sections sectional view.
Fig. 4 be embodiment illustrated in fig. 1 propeller in apart from paddle folder center 80mm at B-B sections sectional view.
Fig. 5 be embodiment illustrated in fig. 1 propeller in apart from paddle folder center 20mm at E-E sections sectional view.
Fig. 6 be embodiment illustrated in fig. 1 propeller in apart from paddle folder center 100mm at A-A sections sectional view.
Fig. 7 is a kind of stereogram for propeller that the utility model embodiment provides.
Fig. 8 is a kind of lateral plan for propeller that the utility model embodiment provides.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent apparatus and method of some aspects be described in detail in the appended claims, the utility model.
It is only merely for the purpose of description specific embodiment in the term that the utility model uses, and is not intended to be limiting this reality
With new.In " one kind " of the utility model and singulative used in the attached claims, " described " and "the"
It is intended to include most forms, unless context clearly shows that other implications.It is also understood that term used herein " and/
Or " refer to and any or all may be combined comprising the associated list items purposes of one or more.
It will be appreciated that though various information may be described using term first, second, third, etc. in the utility model,
But these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not
In the case of departing from the scope of the utility model, the first information can also be referred to as the second information, and similarly, the second information can also
It is referred to as the first information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
The utility model embodiment provides a kind of propeller, can be positive paddle either anti-paddle.So-called positive paddle, refers to from driving
Part such as motor afterbody is seen to motor head direction, is rotated clockwise to produce the propeller of lift；So-called anti-paddle, refers to from motor tail
Portion is seen to motor head direction, is rotated counterclockwise to produce the propeller of lift.The structure and the knot of the anti-paddle of the positive paddle
Mirror symmetry between structure, therefore hereafter only illustrate the structure of the propeller by taking positive paddle as an example.
In addition, the orientation term such as upper and lower occurred in the present embodiment be with the propeller be installed on the aircraft with
The normal operational attitude of the propeller and the aircraft is reference afterwards, and be should not be considered as restrictive.
Below in conjunction with the accompanying drawings, the propeller, Power Component and aircraft of the utility model are described in detail.Do not rushing
In the case of prominent, the feature in following embodiment and embodiment can be mutually combined.
Referring to shown in Fig. 1 to Fig. 4, the utility model embodiment provides a kind of propeller, including：
Paddle folder 10 and blade 20, the paddle presss from both sides includes two mounting holes 101 on 10, and the blade 20 passes through the mounting hole
101 are connected on the paddle folder 10.Certainly, blade 20 can press from both sides 10 with paddle and be integrally formed, and can also process again fixed peace respectively
Dress up one.The D4 at apart from the center of paddle folder 10 for the 21.10% of the radius of the propeller, the blade 20 are attacked
Angle α 1 is 21 ° ± 2.5 °, and the chord length L1 of the blade 20 is 22.32mm ± 5mm.It is being described apart from the center of paddle folder 10
D3 at the 57.14% of the radius of propeller, the angle of attack 2 of the blade 20 is 16.57 ° ± 2.5 °, the chord length L2 of the blade 20
For 19.02mm ± 5mm.The D2 at apart from the center of paddle folder 10 for the 76.19% of the radius of the propeller, the blade
20 angle of attack 3 is 12.91 ° ± 2.5 °, and the chord length L3 of the blade 20 is 15.77mm ± 5mm.
In the present embodiment, due to apart from the paddle folder 10 center for the propeller radius 21.10% at D4,
The angle of attack 1 of the blade 20 is 21 ° ± 2.5 °, and the chord length L1 of the blade 20 is 22.32mm ± 5mm.Pressed from both sides apart from the paddle
10 center is D3 at the 57.14% of the radius of the propeller, and the angle of attack 2 of the blade 20 is 16.57 ° ± 2.5 °, described
The chord length L2 of blade 20 is 19.02mm ± 5mm.It is being the radius of the propeller apart from the center of paddle folder 10
D2 at 76.19%, the angle of attack 3 of the blade 20 are 12.91 ° ± 2.5 °, the chord length L3 of the blade 20 for 15.77mm ±
5mm.The blade for possessing given shape is limited by above-mentioned parameter, air drag can be reduced using the propeller of the blade, carried
High-tensile strength and efficiency, add aircraft after boat distance and improve the flying quality of aircraft.
Table 1 is referred to, the propeller that the present embodiment is provided and the comparison of the test result of existing propeller, by table
It can be seen that, when rotating speed is 3000RPM, 4000RPM, 5000RPM, 6000RPM, 7000PRM, 9360PRM, the present embodiment provides
The pulling force of propeller be all higher than the pulling force of existing propeller, i.e., propeller provided in this embodiment can be in same rotating speed
In the case of provide bigger pulling force.Thus, propeller provided in this embodiment is in the High aititude region that density reduces or low sea
Under the larger extreme case of area's take-off weight of rising sheer from level ground, it can significantly improve pulling force, when ensureing that enough power extends continuation of the journey at the same time
Between, improve flying quality.
| Common paddle | The utility model | ||
| Rotating speed (RPM) | Pulling force (g) | Rotating speed (RPM) | Pulling force (g) |
| 3000 | 46 | 3000 | 69 |
| 4000 | 96 | 4000 | 170 |
| 5000 | 158 | 5000 | 258 |
| 6000 | 190 | 6000 | 357 |
| 7000 | 320 | 7000 | 462 |
| 9360(Max) | 548 | 9360(Max) | 561 |
Table 1
Wherein, D4, the blade 20 at apart from the center of paddle folder 10 for the 21.10% of the radius of the propeller
Angle of attack 1 can be 18.5 ° or 21 ° or 23.5 °, or above-mentioned any any value therebetween, the chord length L1 of blade 20
Can be 17.32mm or 22.32mm or 27.32mm, or above-mentioned any numerical value therebetween.Apart from paddle folder 10
Center is D3 at the 57.14% of the radius of the propeller, the angle of attack 2 of the blade 20 can be 14.07 ° or 16.57 ° or
19.07 °, or above-mentioned any numerical value therebetween, the chord length L2 of the blade 20 can be 14.02mm or 19.02mm or
24.02mm, or above-mentioned any numerical value therebetween.It is being the radius of the propeller apart from the center of paddle folder 10
D2 at 76.19%, the angle of attack 3 of the blade 20 can be 10.41 ° or 12.91 ° or 15.41 °, or it is above-mentioned it is any the two it
Between numerical value, the chord length L3 of the blade 20 can be 10.77mm or 15.77mm or 20.77mm, or it is above-mentioned it is any the two it
Between numerical value.
Wherein, paddle folder 10 can be cylindrical shape, and paddle presss from both sides 10 centers and is equipped with connecting hole, and connecting hole is used to be set in the defeated of motor
In outlet.Blade 20 can be in strip, and blade 20 is connected with paddle folder 10, and radially extending along paddle folder 10.The angle of attack refers to paddle
Angle between the wing chord and speed of incoming flow of leaf 20, chord length refer to the length of 20 cross section of blade.
It is shown in Figure 5, it is being the propeller apart from the center of paddle folder 10 alternatively in the present embodiment
D5 at the 19.05% of radius, the angle of attack 4 of the blade 20 is 17.73 ° ± 2.5 °, and the chord length L4 of the blade 20 is
15.35mm±5mm.Further to reduce the air drag of propeller, pulling force and efficiency are improved.Wherein, the blade 20 is attacked
Angle α 4 can be 15.23 ° or 17.73 ° or 20.23 °, or above-mentioned any numerical value therebetween, and the chord length L4 of blade 20 can
Think 10.35mm or 15.35mm or 20.35mm, or above-mentioned any numerical value therebetween.
It is shown in Figure 6, it is being the propeller apart from the center of paddle folder 10 alternatively in the present embodiment
D1 at the 95.24% of radius, the angle of attack 5 of the blade 20 is 12.21 ° ± 2.5 °, and the chord length L5 of the blade 20 is
12.33mm±5mm.Further to reduce the air drag of propeller, pulling force and efficiency are improved.Wherein, the angle of attack 5 of blade 20
Can be 9.71 ° or 12.21 ° or 14.71 °, or above-mentioned any numerical value therebetween, the chord length L5 of blade 20 can be
7.33mm or 12.33mm or 17.33mm, or above-mentioned any numerical value therebetween.
Referring again to shown in Fig. 1 to Fig. 4, in the present embodiment, alternatively, a diameter of 210mm ± 21mm of propeller.Away from
From D4 at the center 40mm of paddle folder 10, the angle of attack 1 of the blade 20 is 21 °, and the chord length L1 of the blade 20 is
22.32mm.The D3 at the center 60mm apart from paddle folder 10, the angle of attack 2 of the blade 20 is 16.57 °, the blade 20
Chord length L2 be 19.02mm.The D2 at the center 80mm apart from paddle folder 10, the angle of attack 3 of the blade 20 is 12.91 °,
The chord length L3 of the blade 20 is 15.77mm.Thus, the air drag of propeller can be further reduced, improves pulling force and efficiency.
Wherein, the diameter of propeller can be 189mm or 210mm or 231mm, or above-mentioned any numerical value therebetween.
Referring again to shown in Fig. 5, in the present embodiment, alternatively, a diameter of 210mm ± 21mm of propeller.Apart from institute
D5 at the center 20mm of paddle folder 10 is stated, the angle of attack 4 of the blade 20 is 17.73 °, and the chord length L4 of the blade 20 is
15.35mm.Thus, the air drag of propeller can be further reduced, improves pulling force and efficiency.Wherein, the diameter of propeller can
Think 189mm or 210mm or 231mm, or above-mentioned any numerical value therebetween.
Referring again to shown in Fig. 6, in the present embodiment, alternatively, a diameter of 210mm ± 21mm of propeller.Apart from institute
D1 at the center 100mm of paddle folder 10 is stated, the angle of attack 5 of the blade 20 is 12.21 °, and the chord length L5 of the blade 20 is
12.33mm.Thus, the air drag of propeller can be further reduced, improves pulling force and efficiency.Wherein, the diameter of propeller can
Think 189mm or 210mm or 231mm, or above-mentioned any numerical value therebetween.
Refer to shown in Fig. 7 and Fig. 8, in the present embodiment, alternatively, blade 20 includes blade face 21 directed downwardly, leaf upward
The back of the body 22, be connected to the first edge 23 of 21 side of the blade back 22 and blade face, and is connected to the blade back 22 and blade face 21 is another
The second edge 24 of side.The blade face 21 and the cross section of blade back 22 are curved, and the first edge 23 is positioned at described
The lower section of second edge 24.Since blade face 21 and the cross section of blade back 22 are curved, and the first edge 23 is positioned at described the
The lower section of two edge 24, therefore the resistance of air can be reduced, improve the pulling force of blade 20.
In the present embodiment, alternatively, blade 20 includes the connecting pin being connected with paddle folder 10 and away from paddle folder 10
End, the thickness of the blade 20 is gradually reduced by the connecting pin to the end.Since nothing is drastically reversed on blade 20
Part, therefore stress is more uniform, avoids the occurrence of that the stress of respective location is excessive, and structural strength is higher, is not easily broken, so as to improve
The functional reliability of propeller.In addition, end of the blade 20 away from paddle folder 10 is the most thin part of blade 20, be conducive to reduce
Air drag.
In the present embodiment, alternatively, 23 evagination of first edge of blade 20 is formed with protrusion 231.Thus can be further
Improve the pulling force of blade 20.Wherein, protrusion 231 can be located at the blade 20 at the connecting pin, to play further
Improve the effect of the pulling force of high blade 20.
In the present embodiment, alternatively, blade 20 is at least two, and at least two blade 20 is on paddle folder 10
Center is centrosymmetric.Thus, the balance of propeller can be improved.
In the present embodiment, alternatively, the pitch of blade 20 is 111.76mm.Thus, the resistance of air can be reduced, improve paddle
The pulling force of leaf 20.
To sum up, drawing can be significantly improved in highlands using the propeller of the blade of the utility model above-described embodiment
Power, ensures enough power redundancies.Meanwhile performance is taken into account to a certain extent, increase the flight for after boat distance, improving aircraft
Performance.Existing propeller is compared on the market at present, and using the propeller of the blade, its pulling force can under same speed conditions
To improve more than 50%.Under the larger extreme case in the High aititude region that density reduces or low altitude area take-off weight,
It can significantly improve pulling force, ensure that enough power extends cruising time at the same time, improve flying quality.
Due to mirror symmetry between the structure of the anti-paddle and the structure of the positive paddle, the structure of anti-paddle is repeated no more.
The utility model embodiment provides a kind of Power Component, including described in actuator and the utility model any embodiment
Propeller, the propeller 10 is connected by paddle folder with the actuator.Wherein, the concrete structure of the propeller with
Previous embodiment is similar, and details are not described herein again.Retouching on the propeller in embodiment and embodiment i.e. as described above
State the Power Component that the utility model embodiment offer is provided.
In the present embodiment, due to apart from the paddle folder 10 center for the propeller radius 21.10% at D4,
The angle of attack 1 of the blade 20 is 21 ° ± 2.5 °, and the chord length L1 of the blade 20 is 22.32mm ± 5mm.Pressed from both sides apart from the paddle
10 center is D3 at the 57.14% of the radius of the propeller, and the angle of attack 2 of the blade 20 is 16.57 ° ± 2.5 °, described
The chord length L2 of blade 20 is 19.02mm ± 5mm.It is being the radius of the propeller apart from the center of paddle folder 10
D2 at 76.19%, the angle of attack 3 of the blade 20 are 12.91 ° ± 2.5 °, the chord length L3 of the blade 20 for 15.77mm ±
5mm, the blade for possessing given shape is limited by above-mentioned parameter, can be reduced air drag using the propeller of the blade, be carried
High-tensile strength and efficiency, add aircraft after boat distance and improve the flying quality of aircraft.
In the present embodiment, alternatively, the KV values of motor for 1400 turns/(minute volt).Thereby, it is possible to ensure power packages
The power performance of part.
The utility model embodiment provides a kind of aircraft, including fuselage and dynamic described in the utility model any embodiment
Power component, the Power Component are connected with the fuselage.The concrete structure of wherein described Power Component is similar with previous embodiment,
Details are not described herein again.The description as described in the propeller is equally applicable to this reality in embodiment and embodiment i.e. as described above
The aircraft provided with new embodiment.
In the present embodiment, alternatively, the aircraft includes multiple Power Components, the rotation side of the multiple Power Component
To difference.
In the present embodiment, alternatively, the aircraft is multi-rotor aerocraft.
In the present embodiment, due to apart from the paddle folder 10 center for the propeller radius 21.10% at D4,
The angle of attack 1 of the blade 20 is 21 ° ± 2.5 °, and the chord length L1 of the blade 20 is 22.32mm ± 5mm.Pressed from both sides apart from the paddle
10 center is D3 at the 57.14% of the radius of the propeller, and the angle of attack 2 of the blade 20 is 16.57 ° ± 2.5 °, described
The chord length L2 of blade 20 is 19.02mm ± 5mm.It is being the radius of the propeller apart from the center of paddle folder 10
D2 at 76.19%, the angle of attack 3 of the blade 20 are 12.91 ° ± 2.5 °, the chord length L3 of the blade 20 for 15.77mm ±
5mm, the blade for possessing given shape is limited by above-mentioned parameter, can be reduced air drag using the propeller of the blade, be carried
High-tensile strength and efficiency, add aircraft after boat distance and improve the flying quality of aircraft.
The above is only the preferred embodiment of the utility model, and not the utility model is done in any form
Limitation, although the utility model has been disclosed with preferred embodiment as above, but is not limited to the utility model, any to be familiar with
Professional and technical personnel, in the range of technical solutions of the utility model are not departed from, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still
Belong in the range of technical solutions of the utility model.
This patent document disclosure includes material protected by copyright.The copyright owns for copyright holder.Copyright
Owner does not oppose that anyone replicates the patent document in the presence of the proce's-verbal of Patent＆Trademark Office and archives or should
Patent discloses.
Claims (17)
1. a kind of propeller, including：Paddle presss from both sides and blade, and the blade is connected on the paddle folder, it is characterised in that：
At apart from the center that the paddle presss from both sides for the 21.10% of the radius of the propeller, the angle of attack of the blade for 21 ±
2.5 °, the chord length of the blade is 22.32mm ± 5mm；
At apart from the center that the paddle presss from both sides for the 57.14% of the radius of the propeller, the angle of attack of the blade is 16.57 °
± 2.5 °, the chord length of the blade is 19.02mm ± 5mm；
At apart from the center that the paddle presss from both sides for the 76.19% of the radius of the propeller, the angle of attack of the blade is 12.91 °
± 2.5 °, the chord length of the blade is 15.77mm ± 5mm.
2. propeller according to claim 1, it is characterised in that be the propeller apart from the center that the paddle presss from both sides
At the 19.05% of radius, the angle of attack of the blade is 17.73 ° ± 2.5 °, and the chord length of the blade is 15.35mm ± 5mm.
3. propeller according to claim 1, it is characterised in that be the propeller apart from the center that the paddle presss from both sides
At the 95.24% of radius, the angle of attack of the blade is 12.21 ° ± 2.5 °, and the chord length of the blade is 12.33mm ± 5mm.
4. propeller according to claim 1, it is characterised in that：
A diameter of 210mm ± 21mm of the propeller；
At the center 40mm pressed from both sides apart from the paddle, the angle of attack of the blade is 21 °, and the chord length of the blade is 22.32mm；
At the center 60mm pressed from both sides apart from the paddle, the angle of attack of the blade is 16.57 °, and the chord length of the blade is
19.02mm；
At the center 80mm pressed from both sides apart from the paddle, the angle of attack of the blade is 12.91 °, and the chord length of the blade is
15.77mm。
5. propeller according to claim 2, it is characterised in that：
A diameter of 210mm ± 21mm of the propeller；
At the center 20mm pressed from both sides apart from the paddle, the angle of attack of the blade is 17.73 °, and the chord length of the blade is
15.35mm。
6. propeller according to claim 3, it is characterised in that：
A diameter of 210mm ± 21mm of the propeller；
At the center 100mm pressed from both sides apart from the paddle, the angle of attack of the blade is 12.21 °, and the chord length of the blade is
12.33mm。
7. according to any propeller in claim 1-6, it is characterised in that：
The blade includes blade face directed downwardly, blade back upward, the first lateral margin for being connected to the blade back and the blade face side,
And it is connected to the second lateral margin of the blade back and the blade face opposite side；
The blade face and the cross section of the blade back are curved, and first lateral margin is located at below second lateral margin.
8. propeller according to claim 7, it is characterised in that the first lateral margin evagination of the blade is formed with protrusion
Portion.
9. propeller according to claim 8, it is characterised in that the blade includes the connecting pin with paddle folder connection
It is gradually reduced with the thickness away from the end that the paddle presss from both sides, the blade by the connecting pin to the end.
10. propeller according to claim 9, it is characterised in that the protruding parts is in the blade close to the company
Connect at end.
11. according to any propeller in claim 1-6 and 8-10, it is characterised in that the blade is at least two,
At least two blade is centrosymmetric on the center that the paddle presss from both sides.
12. according to any propeller in claim 1-6 and 8-10, it is characterised in that the pitch of the blade is
111.76mm。
A kind of 13. any propeller in Power Component, including actuator and claim 1-12, it is characterised in that institute
Propeller is stated to be connected with the actuator by paddle folder.
14. Power Component according to claim 13, it is characterised in that the actuator is motor, the KV of the motor
Be worth for 1400 turns/(minute volt).
A kind of 15. aircraft, it is characterised in that including the Power Component described in fuselage and claim 13 or 14, the power
Component is connected with the fuselage.
16. aircraft according to claim 15, it is characterised in that the aircraft includes multiple Power Components, described
The rotation direction of multiple Power Components is different.
17. aircraft according to claim 15, it is characterised in that the aircraft is multi-rotor aerocraft.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218442.9U CN207242018U (en) | 2017-09-20 | 2017-09-20 | Propeller, Power Component and aircraft |
| CN201780071175.3A CN109952247B (en) | 2017-09-20 | 2017-11-23 | Screw, power component and aircraft |
| PCT/CN2017/112691 WO2019056558A1 (en) | 2017-09-20 | 2017-11-23 | Propeller, power assembly and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218442.9U CN207242018U (en) | 2017-09-20 | 2017-09-20 | Propeller, Power Component and aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207242018U true CN207242018U (en) | 2018-04-17 |
Family
ID=61886073
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721218442.9U Expired - Fee Related CN207242018U (en) | 2017-09-20 | 2017-09-20 | Propeller, Power Component and aircraft |
| CN201780071175.3A Expired - Fee Related CN109952247B (en) | 2017-09-20 | 2017-11-23 | Screw, power component and aircraft |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780071175.3A Expired - Fee Related CN109952247B (en) | 2017-09-20 | 2017-11-23 | Screw, power component and aircraft |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN207242018U (en) |
| WO (1) | WO2019056558A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019223205A1 (en) * | 2018-05-25 | 2019-11-28 | 深圳市大疆创新科技有限公司 | Propeller, power assembly, and aircraft |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2253835A1 (en) * | 2009-05-18 | 2010-11-24 | Lm Glasfiber A/S | Wind turbine blade with base part having non-positive camber |
| CN203996873U (en) * | 2014-07-30 | 2014-12-10 | 深圳市大疆创新科技有限公司 | Aircraft and screw propeller thereof |
| CN105253295A (en) * | 2015-10-30 | 2016-01-20 | 深圳市道通智能航空技术有限公司 | Screw propeller and aerocraft |
| CN206297727U (en) * | 2016-12-01 | 2017-07-04 | 重庆零度智控智能科技有限公司 | Propeller, Power Component and aircraft |
| CN206394871U (en) * | 2016-12-22 | 2017-08-11 | 重庆零度智控智能科技有限公司 | Propeller, Power Component and aircraft |
| CN206394870U (en) * | 2016-12-22 | 2017-08-11 | 重庆零度智控智能科技有限公司 | Propeller, Power Component and aircraft |
-
2017
- 2017-09-20 CN CN201721218442.9U patent/CN207242018U/en not_active Expired - Fee Related
- 2017-11-23 CN CN201780071175.3A patent/CN109952247B/en not_active Expired - Fee Related
- 2017-11-23 WO PCT/CN2017/112691 patent/WO2019056558A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019223205A1 (en) * | 2018-05-25 | 2019-11-28 | 深圳市大疆创新科技有限公司 | Propeller, power assembly, and aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109952247A (en) | 2019-06-28 |
| CN109952247B (en) | 2022-05-10 |
| WO2019056558A1 (en) | 2019-03-28 |
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| 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: 20180417 |