Multi-ducted fan hovercar

Abstract

According to the multi-ducted fan hovercar provided by the invention, streamline flat box structures with airfoil characteristics are arranged on the two sides of the cabin, so that air resistance can be effectively reduced and lift force except a power system can be obtained during flight, and more targeted aerodynamic layout optimization is provided for the hovercar; the fixed or tiltable ducted fans at a plurality of positions of the aircraft body are matched with one another, so that not only can multiple take-off and landing modes including vertical and skating be realized, but also the power loss during conversion from vertical flight to horizontal flight can be effectively reduced, the energy consumption in flight can be reduced, and the skating boosting distance can be shortened by independently controlling the tiltable ducted fans in groups; the wings and the empennage assembly adopt foldable and telescopic design structures, so that the external size of the hovercar can be reduced, and the hovercar is beneficial to running or parking on land.

Description

Technical Field

[0001] The present invention belongs to the field of autonomous flying cars, and particularly relates to a flying car provided with multiple ducted fans and capable of providing multiple take-off and landing methods. Background Art

[0002] At present, many aircraft and new energy vehicle production and research units are very enthusiastic about the layout of flying car technology and have introduced various flying car configuration schemes. However, there are still some relatively obvious defects in the existing flying car configurations and power layouts. For example, the lift during flight solely depends on the performance of power systems such as rotors and ducted fans, and the airframe itself lacks better designs for reducing drag and increasing lift. This makes some existing flying car demonstrators still unable to meet the actual requirements of low-altitude transportation in terms of endurance and payload. Due to the significant differences between the vehicle use functions of flying cars and the power systems based on power batteries and conventional aircraft, simple conversion cannot be carried out in configuration design. Therefore, how to provide a more suitable aerodynamic layout and optimized design of power components according to the characteristics of flying cars is an urgent technical problem to be solved in this field. Summary of the Invention

[0003] In view of this, aiming at the technical problems existing in this field, the present invention provides a multi-ducted fan flying car, including: a fuselage main body, a left wing, a right wing, a cabin, a horizontal tail, a vertical tail, and multiple fixed or tiltable ducted fans;

[0004] Among them, the fuselage main body consists of a cabin arranged in the center and extending from the front end to the rear end of the fuselage main body, and wing-shaped flat boxes on both sides of the cabin; several nose-fixed ducted fans are arranged at the front of the wing-shaped flat boxes; several fuselage-fixed ducted fans are arranged in the middle of the wing-shaped flat boxes, and at the same time, they serve as left and right wing boxes to respectively connect and install the left wing and the right wing; both the nose and fuselage-fixed ducted fans are used to provide vertical thrust during vertical take-off and landing;

[0005] Both the left and right wings are composed of an inner flap section and an outer aileron section; several flap-tiltable ducted fans are arranged on the flap section, which are used to provide vertical thrust when swinging downward during the vertical take-off and landing stage, and to provide horizontal thrust when swinging to the horizontal during the level flight stage; each left and right flap-tiltable ducted fan can perform an independent tilting action; a swingable control surface is arranged on the aileron section;

[0006] One tail-push tiltable ducted fan is respectively arranged on the left and right sides of the rear end of the wing-shaped flat box and the tail vertebra of the cabin, which is used to provide vertical thrust when swinging downward during the vertical take-off and landing stage, and to provide horizontal thrust when swinging to the horizontal during the level flight stage;

[0007] On the outer sides of the left and right airfoil-shaped flat boxes at the rear of the fuselage main body, there are respectively provided side beams extending backward, and at the end of each side beam, there is respectively provided a vertical tail, and a rudder is provided on each vertical tail; the horizontal tail is respectively connected to the upper ends of the left and right vertical tails, and an elevator is provided thereon.

[0008] Furthermore, the aileron sections of the left and right wings adopt a foldable design and are used to swing upward when driving or parking on land to reduce the lateral dimension of the flying car; the left and right side beams adopt a telescopic design and are used to contract when driving or parking on land to reduce the longitudinal dimension of the flying car and adjust the moment during flight.

[0009] Furthermore, winglets are provided at the ends of the left and right wings to reduce flight resistance.

[0010] According to the needs of passenger or freight transportation, a bubble-shaped cabin or a blunt-nosed cylindrical cabin is specifically selected for the cabin.

[0011] In the multi-ducted fan flying car provided by the present invention, streamlined flat box structures with airfoil characteristics are provided on both sides of the cabin, which can effectively reduce air resistance during flight and obtain lift outside the power system, providing a more targeted aerodynamic layout optimization for the flying car; the fixed or tiltable ducted fans at multiple positions of the fuselage cooperate with each other, which can not only achieve multiple takeoff and landing methods including vertical and taxiing, but also effectively reduce the power loss during the conversion from vertical flight to horizontal flight, reduce the energy consumption during flight, and shorten the taxiing boost distance through the grouped independent control of the tiltable ducted fans; the wing and tail assemblies adopt foldable and telescopic design structures, which can reduce the external dimensions of the flying car and are beneficial for driving or parking on land. Description of the Drawings

[0012] Figure 1 It is a top view of the multi-ducted fan flying car provided by the present invention;

[0013] Figure 2 It is a side view of the multi-ducted fan flying car provided by the present invention;

[0014] Figure 3 It is a three-dimensional structure diagram of the vertical takeoff, vertical flight-horizontal flight conversion, and horizontal flight stages of the multi-ducted fan flying car provided by the present invention;

[0015] Figure 4 It is an optional structure diagram of a 20-ducted fan flying car based on the present invention. Detailed Embodiments

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] The multi-ducted fan flying car provided by the present invention, as Figure 1 , 2 shown, includes: a fuselage main body 1, a left wing 2, a right wing 3, a cabin 4, a horizontal tail 5, a vertical tail 11, and a plurality of fixed or tiltable ducted fans;

[0018] Among them, the fuselage main body 1 is composed of a cabin 4 arranged in the center thereof and extending from the front end to the rear end of the fuselage main body 1, and airfoil flat boxes 6 on both sides of the cabin 4; a total of 4 nose fixed ducted fans 7 are arranged on the front part of the airfoil flat box 6, with 2 on the left and 2 on the right; a total of 4 fuselage fixed ducted fans are arranged in the middle of the airfoil flat box 6, and at the same time, they serve as left and right wing boxes respectively to connect and install the left wing 2 and the right wing 3; both the nose and fuselage fixed ducted fans are used to provide vertical thrust during vertical takeoff and landing;

[0019] Both the left and right wings are composed of an inner flap section and an outer aileron section; a total of 6 flap tiltable ducted fans 8 are arranged on the flap section, with 3 on the left and 3 on the right, which are used to provide vertical thrust when swinging downward during the vertical takeoff and landing stage, and to provide horizontal thrust when swinging to the horizontal during the level flight stage; each of the left and right flap tiltable ducted fans 8 can perform an independent tilting action; a swingable rudder surface 14 is arranged on the aileron section;

[0020] One tail thrust tiltable ducted fan 9 is arranged on each side of the left and right sides of the tail cone of the rear end of the airfoil flat box 6 and the cabin 4, which is used to provide vertical thrust when swinging downward during the vertical takeoff and landing stage, and to provide horizontal thrust when swinging to the horizontal during the level flight stage;

[0021] On the outer sides of the left and right airfoil flat boxes 6 at the rear of the fuselage main body 1, there are side beams extending backward respectively, and a vertical tail 11 is arranged at the end of each side beam, and a rudder 12 is arranged on each vertical tail 11; the horizontal tail 5 is respectively connected to the upper ends of the left and right vertical tails, and an elevator 10 is arranged thereon.

[0022] In a preferred embodiment of the present invention, the aileron sections of the left wing 2 and the right wing 3 adopt a foldable design, which is used to swing upward to reduce the lateral dimension of the flying car when driving or parking on land; the left and right side beams adopt a telescopic design, which is used to contract to reduce the longitudinal dimension of the flying car when driving or parking on land, and to adjust the moment during flight.

[0023] In a preferred embodiment of the present invention, winglets 13 are arranged at the ends of the left wing 2 and the right wing 3, which are used to reduce flight resistance.

[0024] Figure 3 It shows the configuration changes of the flying car provided by the present invention during the vertical take-off, vertical flight-to-horizontal flight conversion, and horizontal flight stages achieved through the coordinated control of fixed and tiltable ducted fans. Group-independent control of the ducted fans can achieve various beneficial effects, including increasing lift, reducing energy consumption, and shortening the take-off run distance. For example:

[0025] ① As Figure 3 (a) shows, during the vertical take-off stage, all flap-tiltable ducted fans and tail-thrust tiltable ducted fans swing vertically downward to provide thrust to quickly lift the whole machine;

[0026] ② As Figure 3 (b) shows, during the vertical take-off to horizontal flight stage, after the flying car reaches an appropriate height, the 4 inner flap-tiltable ducted fans turn horizontal. At this time, the remaining 12 ducted fans are still sufficient to provide the hovering pull force of the whole machine;

[0027] ③ As Figure 3 (c) shows, during the horizontal flight acceleration stage, when the 4 inner left and right flap-tiltable ducted fans provide horizontal thrust to accelerate the whole machine until the lift is equal to the weight of the whole machine, the power of the remaining ducted fans is gradually reduced until they are turned off;

[0028] ④ During the acceleration climb or high-speed cruise stage, 1 flap-tiltable ducted fan on each of the left and right sides turns horizontal, and the tail-thrust tiltable ducted fan turns horizontal to provide power for the whole machine to accelerate climb or high-speed cruise;

[0029] ⑤ During the deceleration and height reduction stage, all tiltable ducted fans remain horizontal and the power is gradually reduced, so that the whole machine decelerates and reduces height, and ensures that the whole machine does not stall;

[0030] ⑥ During the horizontal flight to vertical descent stage, 1 flap-tiltable ducted fan on each of the left and right sides and the tail-thrust tiltable ducted fan turn vertical. The whole machine gradually changes from gliding to hovering, and then the other 4 left and right flap-tiltable ducted fans turn vertical to ensure the stable attitude of the whole machine to complete the vertical descent.

[0031] During specific implementation, the number and specifications of the ducted fans at the fuselage, wings, and tail can also be flexibly selected according to the actual power indicators. For example Figure 4 the optional structural form of a flying car with 20 ducted fans shown.

[0032] It should be understood that the magnitudes of the sequence numbers of the steps in the embodiments of the present invention do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-ducted fan flying car, characterized in that: Comprising: A fuselage main body, a left wing, a right wing, a cabin, a horizontal tail, a vertical tail, and multiple fixed or tiltable ducted fans; Among them, the fuselage main body consists of a cabin arranged in the center and extending from the front end to the rear end of the fuselage main body, and airfoil-shaped flat boxes on both sides of the cabin; several nose-fixed ducted fans are arranged at the front of the airfoil-shaped flat boxes; several fuselage-fixed ducted fans are arranged in the middle of the airfoil-shaped flat boxes, and at the same time serve as left and right wing boxes to respectively connect and install the left wing and the right wing; the nose and fuselage-fixed ducted fans are both used to provide vertical thrust during vertical takeoff and landing; Both the left and right wings are composed of an inner flap section and an outer aileron section; several flap-tiltable ducted fans are arranged on the flap section, which are used to provide vertical thrust when swinging downward during the vertical takeoff and landing stage, and to provide horizontal thrust when swinging to the horizontal during the level flight stage; each left and right flap-tiltable ducted fan can perform an independent tilting action; a swingable control surface is arranged on the aileron section; One tail-thrust tiltable ducted fan is respectively arranged on the left and right sides of the rear end of the airfoil-shaped flat box and on both sides of the cabin tail cone, which is used to provide vertical thrust when swinging downward during the vertical takeoff and landing stage, and to provide horizontal thrust when swinging to the horizontal during the level flight stage; Side beams extending backward are respectively arranged on the outer sides of the left and right airfoil-shaped flat boxes at the rear of the fuselage main body, a vertical tail is respectively arranged at the end of each side beam, and a rudder is arranged on each vertical tail; the horizontal tail is respectively connected to the upper ends of the left and right vertical tails, and an elevator is arranged thereon.

2. The multi-ducted fan flying car according to claim 1, characterized in that: The aileron sections of the left and right wings adopt a foldable design, which is used to swing upward to reduce the lateral dimension of the flying car when driving or parking on land; the left and right side beams adopt a telescopic design, which is used to contract to reduce the longitudinal dimension of the flying car when driving or parking on land, and to adjust the moment during flight.

3. The multi-ducted fan flying car according to claim 1, characterized in that: Winglets are arranged at the ends of the left and right wings, which are used to reduce flight resistance.

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