Ring type rotator and propulsion force generator and drone using the rotator

Abstract

The present specification suggests an invention regarding a propulsion force generator and a drone using same. A propulsion force generator according to an embodiment of the present invention comprises: a motor (110); a driving shaft (120) rotatably driven by the motor (110); and a plurality of shells which are coupled to the driving shaft (120) using a central axis (X1) of the driving shaft (120) as a common rotary axis, wherein each of the plurality of shells has a plurality of inlet ports through which a fluid is introduced according to the rotation of the driving shaft, and the introduced fluid is branched and discharged by the plurality of shells.

Description

Ring-shaped rotor and propulsion and drone using the same

[0001] The present invention relates to a ring-shaped rotor and a propulsion system and drone using the same, and more specifically, to a rotor that is driven by electromagnetic force and manufactured in a ring shape to increase the rotation radius, and a propulsion system and drone using the same.

[0002] Propellers used in drones and other devices have thrust determined by their rotational radius and motor speed. Conventional propellers feature a centrally located rotational motor, with blades attached to this motor.

[0003] At this time, the area swept by the blade, which is close to the motor, is inefficient because the area swept is relatively small compared to the motor rotation speed.

[0004] Therefore, in order to obtain high thrust per rotational speed, the blades must be designed long, but there is a problem in that the blades cannot be designed arbitrarily long.

[0005] The present invention is an invention derived to solve the above-mentioned conventional problems, and aims to provide a rotating body capable of securing a large blade rotation radius without designing the blade to be long, and a propulsion system and drone using the rotating body.

[0006] According to one embodiment, the present invention provides a ring-shaped rotating body (100) including: a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface; a fixed ring (130) made of a magnetic material fixedly disposed in an inner space of the rotating ring (110) and having a plurality of electric coils (140) wound around it; and a control unit (150) that supplies current to the plurality of electric coils (140).

[0007] The above-mentioned rotary ring (110) may have a tube structure with a circular cross-section and may have a through hole (111) formed that extends 360° along the inner surface.

[0008] The above fixed ring (130) may be provided in a circular ring shape.

[0009] According to one embodiment, the present invention provides a propulsion system (201) including a ring-shaped rotor (101); and a plurality of blades (210) mounted on a rotating ring (110) of the ring-shaped rotor (101), wherein the ring-shaped rotor (101) includes a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and a control unit (150) for supplying current to the plurality of electric coils (140), wherein the plurality of blades (210) are provided in a propeller shape.

[0010] According to one embodiment, the present invention provides a drone (301) including a drone body (320); and a plurality of propellants (310) connected to the drone body (320) via a connecting frame (330), wherein each of the plurality of propellants (310) includes a ring-shaped rotating body (101); and a plurality of blades (210) mounted on a rotating ring (110) of the ring-shaped rotating body (101), wherein the ring-shaped rotating body (101) includes a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and a control unit (150) for supplying current to the plurality of electric coils (140), wherein the plurality of blades (210) are provided in the form of propellers.

[0011] According to one embodiment, the present invention is a drone (302) including a first propulsion body (341); and a second propulsion body (342) aligned with the first propulsion body (341) along a central axis (X), wherein the first propulsion body (341) and the second propulsion body (342) are driven to rotate in opposite directions when the drone is driven, and each of the first and second propulsion bodies (341, 342) includes a ring-shaped rotating body (101); and a plurality of blades (210) mounted on a rotating ring (110) of the ring-shaped rotating body (101), wherein the ring-shaped rotating body (101) includes a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; And a control unit (150) for supplying current to the plurality of electric coils (140); and a drone in which the plurality of blades (210) are provided in the form of a propeller.

[0012] According to one embodiment, the present invention provides a drone (303) including a single propulsion body (341), wherein the propulsion body (341) includes: a ring-shaped rotor (101); and a plurality of blades (210) mounted on a rotating ring (110) of the ring-shaped rotor (101); wherein the ring-shaped rotor (101) includes: a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and a control unit (150) for supplying current to the plurality of electric coils (140); wherein the plurality of blades (210) are provided in the form of a propeller.

[0013] According to one embodiment, the present invention provides a propulsion unit (202) including a ring-shaped rotor (101); and a plurality of blades (220) mounted on a rotating ring (110) of the ring-shaped rotor (101), wherein the ring-shaped rotor (101) includes a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and a control unit (150) for supplying current to the plurality of electric coils (140); wherein the plurality of blades (220) are provided as a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along a circumferential direction, or the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

[0014] According to one embodiment, the present invention provides a drone (304) including a drone body (320); and a plurality of propellants (360) connected to the drone body (320) via a connecting frame (330), wherein each of the plurality of propellants (360) includes a ring-shaped rotating body (101); and a plurality of blades (220) mounted on a rotating ring (110) of the ring-shaped rotating body (101), wherein the ring-shaped rotating body (101) includes a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; And a control unit (150) for supplying current to the plurality of electric coils (140); wherein the plurality of blades (220) are provided as a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along the circumferential direction, or a drone is provided in which the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

[0015] According to one embodiment, the present invention is a drone (305) including a first propulsion body (371); and a second propulsion body (372) aligned with the first propulsion body (371) along a central axis (X), wherein the first propulsion body (371) and the second propulsion body (372) are driven to rotate in opposite directions when the drone is driven, and each of the first and second propulsion bodies (371, 372) includes a ring-shaped rotating body (101); and a plurality of blades (220) mounted on a rotating ring (110) of the ring-shaped rotating body (101), wherein the ring-shaped rotating body (101) includes a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; And a control unit (150) for supplying current to the plurality of electric coils (140); wherein the plurality of blades (220) are provided as a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along the circumferential direction, or a drone is provided in which the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

[0016] An air inlet (380) may be provided between the center of the drone and the first propulsion body (371) so that air from above can be supplied to the second propulsion body (372).

[0017] According to one embodiment, the present invention is a drone (306) including a single propulsion body (371), wherein the propulsion body (371) includes: a ring-shaped rotor (101); and a plurality of blades (220) mounted on a rotating ring (110) of the ring-shaped rotor (101); wherein the ring-shaped rotor (101) includes: a rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on an inner surface thereof; a fixed ring (130) fixedly disposed in an inner space of the rotating ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; And a control unit (150) for supplying current to the plurality of electric coils (140); wherein the plurality of blades (220) are provided as a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along the circumferential direction, or a drone is provided in which the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

[0018] The ring-shaped rotor according to the present invention has a rotating ring and a fixed ring, each formed in a ring shape, thereby providing a significantly larger rotational radius than conventional motors. Therefore, a propulsion system and drone having a structure utilizing the ring-shaped rotor of the present invention can increase the efficiency of propulsion generation at the same rotational speed without designing longer blades compared to a case utilizing a conventional motor.

[0019] FIG. 1 is a drawing showing a ring-shaped rotor according to an embodiment of the present invention.

[0020] Figure 2 is a drawing showing a longitudinal cross-section of the rotating body of Figure 1.

[0021] Figure 3 is a drawing showing the internal structure of the rotating body of Figure 1.

[0022] Figures 4 and 5 are drawings showing the rotational operation and principle of a ring-shaped rotor according to the present invention.

[0023] Figure 6 is a drawing showing a propulsion system according to the first embodiment of the present invention.

[0024] Figure 7 is a cross-sectional drawing showing the propulsion system of Figure 6.

[0025] Figure 8 is a drawing showing a drone according to the first embodiment of the present invention.

[0026] Figure 9 is a drawing showing a drone according to a second embodiment of the present invention.

[0027] Fig. 10 is a cross-sectional drawing showing the drone of Fig. 9.

[0028] Fig. 11 is a drawing showing a drone according to a third embodiment of the present invention.

[0029] Figure 12 is a cross-sectional drawing showing the drone of Figure 11.

[0030] Fig. 13 is a drawing showing a propulsion system according to a second embodiment of the present invention.

[0031] Figure 14 is a cross-sectional drawing showing the propulsion system of Figure 13.

[0032] FIG. 15 is a drawing showing an alternative embodiment of the propellant illustrated in FIGS. 13 and 14.

[0033] FIG. 16 is a drawing showing another alternative embodiment of the propellant illustrated in FIGS. 13 and 14.

[0034] Fig. 17 is a drawing showing a drone according to the fourth embodiment of the present invention.

[0035] Fig. 18 is a drawing showing a drone according to the fifth embodiment of the present invention.

[0036] Figure 19 is a cross-sectional drawing showing the drone of Figure 18.

[0037] FIG. 20 is a drawing showing an alternative embodiment of the drone illustrated in FIGS. 18 and 19.

[0038] Fig. 21 is a drawing showing a drone according to the sixth embodiment of the present invention.

[0039] Figure 22 is a cross-sectional drawing showing the drone of Figure 21.

[0040] Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.

[0041]

[0042] 1. Example of a ring-shaped rotor

[0043] FIG. 1 is a drawing showing a ring-shaped rotor according to an embodiment of the present invention, FIG. 2 is a drawing showing a longitudinal cross-section of the rotor of FIG. 1, and FIG. 3 is a drawing showing the internal structure of the rotor of FIG. 1.

[0044] Referring to FIGS. 1 to 3, a ring-shaped rotating body (100) according to an embodiment of the present invention includes a rotating ring (110), a plurality of permanent magnets (120), a fixed ring (130), a plurality of electric coils (140), a control unit (150), and a cover member (160).

[0045] The rotating ring (110) is a structure that rotates by the electromagnetic force generated in the rotating body (100). Referring to Fig. 2, the rotating ring (110) has a tube structure with a circular cross-section. The rotating ring (110) is provided with a through hole (111) extending 360° along its inner circumference. The rotating ring (110) is made of a non-conductive material, and may be, for example, a plastic material.

[0046] A plurality of permanent magnets (120) are mounted on the inner surface of the rotating ring (110). Referring to FIG. 3, the plurality of permanent magnets (120) can be arranged at equal intervals. In this drawing, the number of permanent magnets (120) is illustrated as six, but the number can be changed according to the embodiment. The permanent magnets (120) have an arch-shaped curve so that they can be easily mounted on the inner surface of the rotating ring (110).

[0047] The fixed ring (130) is a component that acts as an iron core for generating electromagnetic force. Accordingly, the fixed ring (130) is made of a magnetic material, and may be a metal material such as iron (Fe), for example. The fixed ring (130) is made in a circular ring shape and may have a circular cross-section as illustrated in the drawing. The fixed ring (130) is fixedly arranged in the internal space of the rotating ring (110).

[0048] A plurality of electric coils (140) are wound and mounted on a fixed ring (130). Referring to FIG. 3, two electric coils (140) are provided for each permanent magnet. Accordingly, when six permanent magnets (120) are provided as in the drawing example, a total of twelve electric coils (140) are provided. The electric coils (140) have a length slightly shorter than half the length of the permanent magnets (120).

[0049] The above fixed ring (130) can be manufactured using a composite material manufacturing method in which only the portion where multiple electric coils (140) are mounted is composed of a magnetic material.

[0050] The control unit (150) is configured to control the operation of the rotating body (100) by supplying current to a plurality of electric coils (140) and controlling the current. Like the fixed ring (130), the control unit (150) is also fixedly arranged. Although not shown in the drawing, a connecting member (not shown) is provided to fix the control unit (150) to the fixed ring (130).

[0051] The cover member (160) is configured to cover the empty space formed in the center of the rotating ring (110). As illustrated in FIG. 2, the cover member (160) may be manufactured in a circular shape, and a control unit (150) may be mounted on its lower surface. The cover member (160) is an additional component for ensuring that the exterior of the rotating body (100) appears neat, and may be designed to have various sizes and shapes or may be omitted depending on the embodiment.

[0052] Figures 4 and 5 are drawings showing the rotational operation and principle of a ring-shaped rotor according to the present invention.

[0053] Referring to FIG. 4, the ring-shaped rotor (100) of the present invention is provided with wires (170) that connect a control unit (150) and a plurality of electric coils (140). Current is supplied from the control unit (150) to the plurality of electric coils (140) through these wires (170). As illustrated in FIG. 4, the ring-shaped rotor (100) may additionally be provided with a wire alignment member (180) to assist in wire wiring.

[0054] As shown in Fig. 4-(a), the rotary ring (110) may be driven to rotate clockwise, and as shown in Fig. 4-(b), the rotary ring (110) may be driven to rotate counterclockwise. The direction of the current applied to the plurality of electric coils (140) is controlled by the control unit (150), and the direction of rotation of the rotary ring (110) is controlled through the control of the current direction.

[0055] Referring to FIG. 5, when a current (I) is applied to a plurality of electric coils (140), electromagnetic forces (F) are generated by the interaction between the magnetic field formed accordingly and the magnetic fields provided by the plurality of permanent magnets (120), and the rotary ring (110) is driven to rotate by the rotational moment generated by the electromagnetic forces.

[0056] At this time, the direction of the current (I) applied to the plurality of electric coils (140) can be controlled in a manner that varies depending on the rotational position (angle) of the rotary ring (110). For example, as shown in Fig. 5-(a), the direction of the current (I) applied at a position where a pair of electric coils (140) face each other to a permanent magnet (120) and as shown in Fig. 5-(b), the direction of the current applied at a position where one electric coil (140) faces each permanent magnet (120) can be controlled to be opposite to each other.

[0057]

[0058] 2. First embodiment of the propulsion system

[0059] FIG. 6 is a drawing showing a propulsion body according to the first embodiment of the present invention, and FIG. 7 is a drawing showing a longitudinal cross-section of the propulsion body of FIG. 6.

[0060] Referring to FIGS. 6 and 7, the propulsion body (201) according to the first embodiment of the present invention includes a ring-shaped rotor (101) and a plurality of blades (210).

[0061] The ring-shaped rotating body (101) is provided with the ring-shaped rotating body (100) of the above-described embodiment. Therefore, the ring-shaped rotating body (101) is provided with a rotating ring (110) that is driven to rotate around the central axis (X).

[0062] A plurality of blades (210) are mounted on a rotary ring (110). Therefore, when the rotary ring (110) is driven to rotate, the plurality of blades (210) are also driven to rotate.

[0063] As shown in Fig. 7, as the plurality of blades (210) are driven to rotate, a propulsion force (P) is generated in the propulsion body (201). At this time, the propulsion force (P) acts in a direction along the central axis (X) of the propulsion body (201). In addition, the propulsion force (P) can act upward or downward depending on the rotation direction of the rotary ring (110).

[0064] As illustrated in FIGS. 6 and 7, the plurality of blades (210) can be manufactured in a conventionally known propeller blade shape.

[0065] According to the propulsion unit (201) of the present embodiment, since multiple blades (210) are mounted on a ring-shaped rotating ring (110), a large rotation radius (R) of the propulsion unit (201) can be secured even when blades (210) of short length are applied. Accordingly, the efficiency of propulsion force generation can be increased compared to the same rotational speed.

[0066] Unlike the present embodiment, in the case of a conventional propulsion system in which a conventional rotary motor is located at the center and a structure in which blades are attached to the motor is applied, the efficiency of generating thrust is low compared to the rotational speed.

[0067]

[0068] 3. First embodiment of the drone

[0069] Figure 8 is a drawing showing a drone according to the first embodiment of the present invention.

[0070] Referring to this, a drone (301) according to an embodiment of the present invention includes a drone body (320) and a plurality of propellants (310) connected thereto. The drone body (320) and the propellants (310) may be connected via a connecting frame (330).

[0071] A plurality of propulsion units (310) serve to generate the lift (propulsion) required for drone operation. The propulsion unit (201) of the first embodiment described above can be applied as the propulsion unit (310) for the drone (301).

[0072] The drone body (320) is configured to include an electric supply unit that supplies electricity necessary for drone operation and a control unit that controls drone operation.

[0073] In this embodiment, the drone (301) is shown as being equipped with four propulsion units (310), but the number of propulsion units (310) equipped in the drone (301) may be varied to 2, 3, 5, 6, etc.

[0074]

[0075] 4. Second embodiment of the drone

[0076] FIG. 9 is a drawing showing a drone according to a second embodiment of the present invention, and FIG. 10 is a drawing showing a longitudinal cross-section of the drone of FIG. 9.

[0077] Referring to this, the drone (302) according to the second embodiment of the present invention includes a first propulsion body (341) and a second propulsion body (342).

[0078] The first and second propulsion units (341, 342) are configured to generate the propulsion force (lift) required for drone operation, and may be provided with the propulsion unit (201) of the aforementioned embodiment shown in FIG. 6. However, the control unit (150) may not be provided separately for each propulsion unit (341, 342), but may be provided in an integrated form.

[0079] The drone (302) of this embodiment is equipped with a pair of propulsion bodies (341, 342) aligned along the central axis (X), and by controlling the pair of propulsion bodies (341, 342) to rotate in opposite directions when the drone is driven, the rotational force generated by the two propulsion bodies is offset, thereby making it easier to control the direction of the drone.

[0080] As illustrated in FIGS. 9 and 10 , a passenger compartment (350) may be provided in the center of a drone (302). The passenger compartment (350) provides a space for a person to board the drone (302) when the drone (302) is manufactured as a manned type. Alternatively, the drone (302) may be manufactured as an unmanned type, in which case the passenger compartment (350) is not necessary and is therefore omitted.

[0081]

[0082] 5. Third embodiment of the drone

[0083] FIG. 11 is a drawing showing a drone according to a third embodiment of the present invention, and FIG. 12 is a drawing showing a longitudinal cross-section of the drone of FIG. 11.

[0084] With reference to this, the drone (303) according to the third embodiment of the present invention includes a single propellant (341).

[0085] The single propulsion unit (341) is a configuration that generates the propulsion force (lift) required for drone operation, and can be equipped with the propulsion unit (201) of the aforementioned embodiment shown in FIG. 6.

[0086] The drone (303) of this embodiment may be configured to have only one propulsion body (341), but may use a separate device or a drone body direction control method to offset the rotational force generated in the opposite direction to the rotational direction of the propulsion body blade.

[0087] As illustrated in FIGS. 11 and 12 , a passenger compartment (350) may be provided in the central portion of the drone (303). The passenger compartment (350) provides a space for a person to board the drone (303) when the drone (303) is manufactured as a manned type. Alternatively, the drone (303) may be manufactured as an unmanned type, in which case the passenger compartment (350) is not necessary and is therefore omitted.

[0088]

[0089] 6. Second embodiment of the propulsion system

[0090] FIG. 13 is a drawing showing a propulsion body according to a second embodiment of the present invention, and FIG. 14 is a drawing showing a longitudinal cross-section of the propulsion body of FIG. 13.

[0091] Referring to this, the propulsion body (202) according to the second embodiment of the present invention includes a ring-shaped rotor (101) and a plurality of blades (220).

[0092] The ring-shaped rotating body (101) is provided with the ring-shaped rotating body (100) of the above-described embodiment. Therefore, the ring-shaped rotating body (101) is provided with a rotating ring (110) that is driven to rotate around the central axis (X).

[0093] A plurality of blades (220) are mounted on a rotary ring (110). Therefore, when the rotary ring (110) is driven to rotate, the plurality of blades (220) are also driven to rotate.

[0094] As shown in Fig. 14, as the plurality of blades (220) are driven to rotate, a propulsion force (P) is generated in the propulsion body (202).

[0095] As illustrated in FIGS. 13 and 14, the plurality of blades (220) are provided with a plurality of shells arranged at equal intervals along the central axis. The sizes of the plurality of shells are configured to gradually decrease inward. In these drawings, the plurality of blades (220) are configured with three shells, but the number of shells may be varied to four, five, six, etc., depending on the embodiment.

[0096] Each blade (220) is formed with eight fluid passages (230) arranged at equal intervals in the circumferential direction. The number of fluid passages (230) may vary depending on the embodiment. When the propulsion body is in operation, a plurality of blades (220) are rotated together with the rotary ring (110), and at this time, the fluid (e.g., air) on the upper part of the propulsion body flows into the propulsion body through the plurality of fluid passages (230), and the flowing fluid branches off through the plurality of shells and is discharged downward. According to this fluid flow, a greater pressure is formed on the lower side than on the upper side of the propulsion body (202), and an upward propulsive force is generated by the pressure difference.

[0097] It is preferable that the above fluid passage (230) be configured as close as possible to the rotary ring (110).

[0098] According to the propulsion unit (202) of this embodiment, since the shell-shaped blade (220) is structured to be mounted on a ring-shaped rotating ring (110), a larger rotation radius (R) can be secured compared to cases where a general rotary motor is applied as a means of generating rotational force. Accordingly, the efficiency of generating propulsive force can be increased compared to the same rotational speed.

[0099] FIG. 15 is a drawing showing an alternative embodiment of the propellant illustrated in FIGS. 13 and 14.

[0100] Referring to this, among the multiple cells of the blade (220), the innermost shell does not have a fluid passage (230), thereby preventing air backflow.

[0101] FIG. 16 is a drawing showing another alternative embodiment of the propellant illustrated in FIGS. 13 and 14.

[0102] Referring to this, it is preferable that the fluid passage (230) provided in the shell-shaped blade (220) be located as close to the center of the propellant (202) as possible. To this end, the fluid passage (230) may be located in an area of ​​the blade (220) that is close to the center of the propellant, i.e., an area expressed flat in FIG. 16.

[0103]

[0104] 7. Fourth embodiment of the drone

[0105] Fig. 17 is a drawing showing a drone according to the fourth embodiment of the present invention.

[0106] Referring to this, a drone (304) according to the fourth embodiment of the present invention includes a drone body (320) and a plurality of propellants (360) connected thereto. The drone body (320) and the propellants (360) may be connected via a connecting frame (330).

[0107] A plurality of propulsion units (360) serve to generate the lift (propulsion) required for drone operation. The propulsion unit (202) of the second embodiment shown in FIGS. 13 and 14 can be applied as the propulsion unit (360) for drone operation.

[0108] The drone body (320) may be configured to include an electric supply unit that supplies electricity necessary for drone operation and a control unit that controls drone operation.

[0109] In this embodiment, the drone (304) is shown as being equipped with four propulsion units (360), but the number of propulsion units (360) equipped on the drone (304) may be varied to include two, three, five, six, etc.

[0110]

[0111] 8. Fifth embodiment of the drone

[0112] FIG. 18 is a drawing showing a drone according to a fifth embodiment of the present invention, and FIG. 19 is a drawing showing a longitudinal cross-section of the drone of FIG. 18.

[0113] Referring to this, the drone (305) according to the fifth embodiment of the present invention includes a first propulsion body (371) and a second propulsion body (372).

[0114] The first and second propulsion units (371, 372) are configured to generate the propulsion force (lift) required for drone operation, and may be provided with the propulsion unit (202) of the second embodiment shown in FIGS. 13 and 14. However, the control unit (150) may not be provided separately for each propulsion unit (371, 372), but may be provided in an integrated form.

[0115] The drone (305) of this embodiment is equipped with a pair of propellants (371, 372) aligned along the central axis (X), and by controlling the pair of propellants (371, 372) to rotate in opposite directions when the drone is driven, the rotational force generated by the two propellants is offset, thereby making it easier to control the direction of the drone.

[0116] As illustrated in FIGS. 18 and 19, a passenger compartment (350) may be provided in the center of a drone (305). The passenger compartment (350) provides a space for a person to board the drone (305) when the drone (305) is manufactured as a manned type. Alternatively, the drone (305) may be manufactured as an unmanned type, in which case the passenger compartment (350) is not necessary and is therefore omitted.

[0117] FIG. 20 is a drawing showing an alternative embodiment of the drone illustrated in FIGS. 18 and 19.

[0118] Referring to this, an air inlet (380) is provided between the central portion where the cover member (160) or the passenger seat (350) of the drone (305) is located and the first propulsion body (371) so that air from the upper portion of the drone can be supplied to the second propulsion body (372). The air inlet (380) can be provided by appropriately changing the shape and size of the central portion of the drone, such as the cover member (160) and the passenger seat (350).

[0119]

[0120] 9. Sixth embodiment of the drone

[0121] FIG. 21 is a drawing showing a drone according to the sixth embodiment of the present invention, and FIG. 22 is a drawing showing a longitudinal cross-section of the drone of FIG. 21.

[0122] With reference to this, the drone (306) according to the sixth embodiment of the present invention includes a single propellant (371).

[0123] The single propulsion unit (371) is a configuration that generates the propulsion force (lift) required for drone operation, and can be equipped with the propulsion unit (202) of the second embodiment shown in FIGS. 13 and 14.

[0124] The drone (306) of this embodiment may be configured to have only one propulsion body (371), but may be configured to use a separate device or a method of controlling the direction of the drone body to offset the rotational force generated in the opposite direction to the rotational direction of the propulsion body blade.

[0125] As illustrated in FIGS. 21 and 22, a passenger compartment (350) may be provided in the central portion of a drone (306). The passenger compartment (350) provides a space for a person to board the drone (306) when the drone (306) is manufactured as a manned type. Alternatively, the drone (306) may be manufactured as an unmanned type, in which case the passenger compartment (350) is not necessary and is therefore omitted.

Claims

1. A rotating ring (110) made of a non-conductive material having multiple permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and A ring-shaped rotor including a control unit (150) that supplies current to the plurality of electric coils (140).

2. In claim 1, The above-mentioned rotary ring (110) is a ring-shaped rotary body having a tube structure with a circular cross-section and a perforation (111) extending 360° along the inner surface.

3. In claim 1, The above fixed ring (130) is a ring-shaped rotating body provided in a circular ring shape.

4. Ring-shaped rotor (101); and A propulsion unit (201) including a plurality of blades (210) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101), The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A propulsion system having the above plurality of blades (210) in the form of a propeller.

5. Drone body (320); and A drone (301) including a plurality of propellants (310) connected to the drone body (320) through a connecting frame (330); Each of the above multiple propellants (310) annular rotor (101); and It includes a plurality of blades (210) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101); The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A drone having the above plurality of blades (210) in the form of a propeller.

6. First propulsion unit (341); and A drone (302) including a first propulsion body (341) and a second propulsion body (342) aligned along a central axis (X); The above first propulsion body (341) and the above second propulsion body (342) are driven to rotate in opposite directions when the drone is driven. Each of the first and second propulsion units (341, 342) annular rotor (101); and It includes a plurality of blades (210) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101); The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A drone having the above plurality of blades (210) in the form of a propeller.

7. A drone (303) including a single propulsion unit (341), The above propulsion body (341) annular rotor (101); and It includes a plurality of blades (210) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101); The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A drone having the above plurality of blades (210) in the form of a propeller.

8. Ring-shaped rotor (101); and A propulsion unit (202) including a plurality of blades (220) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101), The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A propellant in which the above plurality of blades (220) are provided with a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along the circumferential direction, or the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

9. Drone body (320); and A drone (304) including a plurality of propellants (360) connected to the drone body (320) through a connecting frame (330); Each of the above multiple propellants (360) annular rotor (101); and It includes a plurality of blades (220) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101); The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A drone in which the above plurality of blades (220) are provided with a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along the circumferential direction, or the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

10. First propulsion unit (371); and A drone (305) including a first propulsion body (371) and a second propulsion body (372) aligned along a central axis (X); The above first propulsion body (371) and the above second propulsion body (372) are driven to rotate in opposite directions when the drone is driven. Each of the first and second propulsion units (371, 372) annular rotor (101); and It includes a plurality of blades (220) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101); The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A drone in which the above plurality of blades (220) are provided with a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along the circumferential direction, or the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

11. In claim 10, A drone having an air inlet (380) between the center of the drone and the first propulsion body (371) so that air from above can be supplied to the second propulsion body (372).

12. A drone (306) including a single propulsion unit (371), The above propulsion body (371) annular rotor (101); and It includes a plurality of blades (220) mounted on a rotating ring (110) of the above-mentioned ring-shaped rotating body (101); The above ring-shaped rotor (101) A rotating ring (110) made of a non-conductive material having a plurality of permanent magnets (120) mounted on the inner surface; A fixed ring (130) fixedly placed in the inner space of the above-mentioned rotary ring (110) and including a magnetic material having a plurality of electric coils (140) wound around it; and It includes a control unit (150) that supplies current to the plurality of electric coils (140); A drone in which the above plurality of blades (220) are provided with a plurality of shells, and a plurality of fluid passage holes (230) are formed in each shell at equal intervals along the circumferential direction, or the plurality of fluid passage holes (230) are formed in the remaining shells except for the innermost shell.

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