Air Mobility Propulsion Module

Abstract

To provide a propulsion module for an air mobility which may use a single actuator to raise and lower a propeller while opening and closing a door at the same time, use the propeller when lifting the air mobility vehicle, and accommodate the propeller inside the propulsion module during cruising, reducing drag, and thereby improving aerodynamics by closing the door.SOLUTION: A propulsion module for an air mobility comprises: a housing having an internal space and an opening portion formed on one side of the housing: a door installed in the housing and opening or closing the opening portion by sliding motion of the door; a propeller arranged in the internal space of the housing and providing propulsion power to air mobility; a link assembly having one end connected to the housing and the other end connected to the propeller and pulling the propeller into the internal space of the housing or pulling the propeller to an external space of the housing through the opening portion; and a door opening and closing portion providing opening and closing force to the door in conjunction with inward-pulling motion or outward-pulling motion of the propeller.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an air mobility propulsion module that uses a single actuator to raise and lower a propeller while simultaneously opening and closing a door, using the propeller when lifting and storing the propeller inside when cruising to reduce drag and close the door, thereby improving aerodynamics. [Background technology]

[0002] The propellers of the air mobility vehicle consist of a lifting propeller and a cruising propeller. The lifting propeller used for lifting and lowering acts as a resistance during cruising, so the range of the air mobility vehicle can be extended by folding the propeller and hiding it inside the boom.

[0003] However, when the propeller assembly is raised and lowered and the boom door is opened and closed separately, an actuator must be further connected to each of them, which inevitably results in an increase in weight and cost.

[0004] Therefore, there is a demand for technology that can simultaneously link the raising and lowering of the propeller and the opening and closing of the door using a single actuator.

[0005] The matters described above as the background art are merely intended to enhance understanding of the background of the present invention, and should not be construed as an admission that they constitute prior art already known to those of ordinary skill in the art. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent No. 10-2122990 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been proposed to solve such problems, and its purpose is to provide an air mobility propulsion module that can raise and lower a propeller using a single actuator while simultaneously opening and closing a door, using the propeller when lifting and storing the propeller inside when cruising to reduce drag and close the door, thereby improving aerodynamics. [Means for solving the problem]

[0008] In order to achieve the above-mentioned objective, the air mobility propulsion module of the present invention includes a housing having an internal space and an opening on one side, a door installed in the housing and opening and closing the opening by a sliding motion, a propeller disposed in the internal space of the housing and providing propulsion for the air mobility, a link assembly having one end connected to the housing and the other end connected to the propeller, which draws the propeller into the internal space of the housing or draws it out to the external space of the housing through the opening, and a door opening / closing unit that provides an opening and closing force to the door in conjunction with the retracting or drawing out motion of the propeller.

[0009] The housing may be an air mobility boom or wing.

[0010] The opening is formed at the upper end of the housing, and the propeller can be pulled out to the outside of the housing through the opening when ascending, and can be pulled into the inside of the housing through the opening when descending.

[0011] The propeller may be a lifting propeller that lifts and lowers relative to the housing to provide vertical thrust.

[0012] The link assembly may comprise a link connected at one end to the housing and at the other end to the propeller, and an actuator that provides a rotational force to the link.

[0013] The actuator has one end connected to the housing and the other end connected to the link, so that when extended, the actuator can rotate the link in the direction in which the propeller is withdrawn.

[0014] The door may be a double door that opens and closes the opening of the housing on both sides.

[0015] A gas lifter is provided between the door and the housing, so that the door can always receive force in the closing direction.

[0016] The propeller and the door are connected by a wire, and when the propeller is extended, the wire pulls the door to open it, and when the propeller is retracted, the wire is let out to close the door.

[0017] The wire may be hung on a pulley provided in the housing, with one end extended to one side and connected to the propeller, and the other end extended in the same direction as the one end and connected to the door. Effect of the Invention

[0018] According to the air mobility propulsion module of the present invention, a single actuator can be used to raise and lower the propeller while simultaneously opening and closing the door; the propeller is used when lifting, and the propeller is stored inside when cruising to reduce drag and close the door, improving aerodynamics. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view of an air mobility propulsion module according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing an open state of an air mobility propulsion module according to one embodiment of the present invention. [Diagram 3] FIG. 2 is a diagram showing an open state of an air mobility propulsion module according to one embodiment of the present invention. [Figure 4]FIG. 2 is a diagram showing an open state of an air mobility propulsion module according to one embodiment of the present invention. [Diagram 5] FIG. 2 is a diagram showing a closed state of an air mobility propulsion module according to one embodiment of the present invention. [Figure 6] FIG. 2 is a diagram showing a closed state of an air mobility propulsion module according to one embodiment of the present invention. [Figure 7] FIG. 2 is a diagram showing a closed state of an air mobility propulsion module according to one embodiment of the present invention. [Figure 8] FIG. 2 is a diagram illustrating the operation of an air mobility propulsion module according to one embodiment of the present invention. [Figure 9] FIG. 2 is a diagram illustrating the operation of an air mobility propulsion module according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Figure 1 is an oblique view of an air mobility propulsion module according to one embodiment of the present invention, Figures 2 to 4 are figures showing an open state of an air mobility propulsion module according to one embodiment of the present invention, Figures 5 to 7 are figures showing a closed state of an air mobility propulsion module according to one embodiment of the present invention, and Figures 8 and 9 are figures showing the operation of an air mobility propulsion module according to one embodiment of the present invention.

[0021] FIG. 1 is a perspective view of an air mobility propulsion module according to an embodiment of the present invention. The air mobility propulsion module according to the present invention includes a housing 100 having an internal space and an opening H on one side thereof, a door 300 installed in the housing 100 and configured to open and close the opening H by a sliding motion, a propeller 500 disposed in the internal space of the housing 100 and provide propulsion for the air mobility, a link assembly 700 having one end connected to the housing 100 and the other end connected to the propeller 500, and configured to draw the propeller 500 into the internal space of the housing 100 or draw it out to the external space of the housing 100 through the opening H, and a door opening / closing unit 900 configured to provide an opening and closing force to the door 300 in conjunction with the drawing or drawing action of the propeller 500.

[0022] In the case of the air mobility of the present invention, it can be applied to a system that performs distributed propulsion through multiple propellers. In particular, the lifting propeller is suitable for a case where the air mobility needs to be deployed for propulsion when ascending or descending, but needs to be folded or stored to reduce air resistance when cruising.

[0023] Lifting propellers are generally mounted on a boom. In this respect, the housing of the present invention can be the boom or wing of an air mobility vehicle.

[0024] Specifically, the housing 100 has an internal space and an opening H on one side. A propeller 500 is provided in the internal space of the housing 100. The propeller 500 is extended to the outside of the housing 100 through the opening H or retracted into the housing 100. The propeller 500 provides a propulsive force for lifting when extended, and is stored inside when retracted to reduce air resistance during cruising.

[0025] In addition, a door 300 is installed in the opening H of the housing 100, and the opening H is opened and closed by a sliding movement. When the propeller 500 is extended, the door 300 is opened to allow the propeller 500 to be pulled out to the outside, and when the propeller 500 is retracted, the door 300 is closed to form the outer surface of the housing 100, thereby improving the aerodynamics of the housing 100 during cruising.

[0026] The propeller 500 is basically disposed in the interior space of the housing 100, and when pulled out to the outside, provides propulsion for lifting the air mobility.

[0027] The link assembly 700 has one end connected to the housing 100 and the other end connected to the propeller 500, and operates to draw the propeller 500 into the interior space of the housing and to draw the propeller 500 out to the exterior space of the housing 100 through the opening H.

[0028] The door opening / closing unit 900 provides an opening / closing force to the door 300 in conjunction with the retracting or extending operation of the propeller 500 .

[0029] Basically, in the present invention, an actuator 740 is provided on a link assembly 700, and the extension and retraction of the propeller 500 is controlled via the link assembly 700. A door opening / closing unit 900 connected to the link assembly 700 or the propeller 500 receives the movement of the link assembly 700 or the propeller 500 and opens and closes the door 300 in conjunction with the movement of the link assembly 700 or the propeller 500. Thus, the retraction of the propeller 500, the extension of the propeller 500, and the opening and closing of the door 300 are all controlled via a single actuator 740.

[0030] This is because when it is required to extend the propeller 500, the opening section H needs to be opened, and when it is required to retract the propeller 500, the door 300 also needs to be closed, so that the two operations can be linked via a single actuator 740.

[0031] Also, an opening H is formed at the upper end of the housing 100, and the propeller 500 may be pulled out to the outside of the housing 100 through the opening H when ascending, and may be pulled into the inside of the housing 100 through the opening H when descending. The propeller 500 may be a lifting propeller that moves up and down with respect to the housing 100 to provide a vertical propulsive force. The propeller 500 is composed of blades 520 and a motor 540, and the blades 520 may be folded or unfolded to be gathered together through a separate operating mechanism 560. The present invention controls the blades 520 to be folded and gathered together when the propeller 500 is retracted.

[0032] 2 to 4 are diagrams showing an open state of an air mobility propulsion module according to one embodiment of the present invention, and FIGS. 5 to 7 are diagrams showing a closed state of an air mobility propulsion module according to one embodiment of the present invention.

[0033] Specifically, link assembly 700 can be composed of link 720, one end of which is connected to housing 100 and the other end of which is connected to propeller 500, and actuator 740, which provides rotational force to link 720. As shown, actuator 740 has a cylindrical shape that can be extended or retracted, and can be of an electric or hydraulic type.

[0034] 2 shows a state in which the propeller 500 is pulled out to the outside, FIG. 3 is a cross-sectional view of the gas lifter 920 side of FIG. 2, and FIG. 4 is a cross-sectional view of the wire 940 side of FIG.

[0035] The actuator 740 has one end connected to the housing 100 and the other end connected to the link 720, and when extended, can rotate the link 720 in the direction of extending the propeller 500. In other words, when it is necessary to extend the propeller 500, the actuator 740 is extended as shown in Figures 2 to 4, and as a result, the link 720 is lifted and the propeller 500 is lifted upward as a whole.

[0036] Also, the door 300 may be a double door that opens and closes the opening H of the housing 100 from both sides. A gas lifter 920 is provided between the door 300 and the housing 100, so that the door can always receive a force in the closing direction. The gas lifter 920 usually always pushes out the door 300 and applies an elastic force so that the door 300 is in a closed state.

[0037] In this state, the propeller 500 and the door 300 are connected by a wire 940, and when the propeller 500 is extended, the wire 940 pulls the door to open it, and when the propeller 500 is retracted, the wire 940 is unreeled to close the door 300. The wire 940 is hung on a pulley 960 provided in the housing 100, and one end of the wire 940 is extended to one side to be connected to the propeller 500, and the other end is extended in the same direction as the one end to be connected to the door 300.

[0038] That is, as shown in Figures 2 to 4, when the actuator 740 is extended to pull out the propeller 500, the propeller 500 rises. At this time, as shown in Figure 4, the propeller 500 pulls the wire 940 as the propeller 500 rises, and since the wire 940 is connected to the door 300 via the pulley 960, the door 300 is pulled and the opening portion is opened. Therefore, the rise of the propeller 500 and the opening of the door 300 are linked together.

[0039] In this state, the gas lifter 920 constantly exerts a force to close the door 300, so that when the extended position of the actuator 740 is fixed, the door 300 is maintained in a stable open position without shaking.

[0040] 5 to 7 are diagrams showing a closed state of the air mobility propulsion module according to an embodiment of the present invention. In this case, conversely, the actuator 740 contracts and pulls the link 720. As a result, the propeller 500 descends into the housing 100. As the propeller 500 descends, the wire 940 begins to unwind, and the door 300 rises to the closed state by the force of the gas lifter 920. Therefore, in this case as well, the retraction of the propeller 500 and the closing of the door 300 are controlled together through one actuator 740.

[0041] According to the air mobility propulsion module of the present invention, a single actuator can be used to raise and lower the propeller while simultaneously opening and closing the door; the propeller is used when lifting, and the propeller is stored inside when cruising to reduce drag, and the door can be closed to improve aerodynamics.

[0042] While the present invention has been illustrated and described with respect to specific embodiments, it will be apparent to one having ordinary skill in the art that various modifications and changes can be made therein without departing from the spirit and scope of the invention as set forth in the following claims. [Explanation of symbols]

[0043] 100 Housing 300 Doors H Open part 500 Propeller 700 Link Assembly 900 Door opening and closing part

Claims

1. a housing having an internal space and an opening on one side; a door that is installed in the housing and that opens and closes the opening by a sliding movement; A propeller disposed in the interior space of the housing to provide a propulsive force for the air mobility vehicle; a link assembly having one end connected to the housing and the other end connected to the propeller, the link assembly adapted to draw the propeller into the interior space of the housing and to draw the propeller out of the housing through the opening; An air mobility propulsion module comprising: a door opening / closing unit connected to the link assembly or the propeller and configured to receive and cooperate with the retracting or extending motion of the propeller to provide an opening and closing force to the door.

2. A housing having an internal space and an opening on one side; a door that is installed in the housing and that opens and closes the opening by a sliding movement; A propeller disposed in the interior space of the housing to provide a propulsive force for the air mobility vehicle; a link assembly having one end connected to the housing and the other end connected to the propeller, the link assembly adapted to draw the propeller into the interior space of the housing and to draw the propeller out of the housing through the opening; a door opening / closing unit that provides an opening / closing force to the door in conjunction with a retracting or pulling out operation of the propeller; An air mobility propulsion module, characterized in that the housing is a boom or wing of the air mobility.

3. A housing having an internal space and an opening on one side; a door that is installed in the housing and that opens and closes the opening by a sliding movement; A propeller disposed in the interior space of the housing to provide a propulsive force for the air mobility vehicle; a link assembly having one end connected to the housing and the other end connected to the propeller, the link assembly adapted to draw the propeller into the interior space of the housing and to draw the propeller out of the housing through the opening; a door opening / closing unit that provides an opening / closing force to the door in conjunction with a retracting or pulling out operation of the propeller; An air mobility propulsion module, characterized in that the opening is formed at an upper end of the housing, and the propeller is pulled out to the outside of the housing through the opening when ascending, and pulled into the inside of the housing through the opening when descending.

4. The air mobility propulsion module according to claim 1 , wherein the propeller is a lifting propeller that lifts and lowers relative to the housing to provide vertical propulsion.

5. 2. The air mobility propulsion module as described in claim 1, characterized in that the link assembly is composed of a link having one end connected to the housing and the other end connected to the propeller, and an actuator that provides a rotational force to the link.

6. 6. The air mobility propulsion module according to claim 5, wherein the actuator has one end connected to the housing and the other end connected to the link, and when extended, rotates the link in the direction of withdrawing the propeller.

7. The air mobility propulsion module according to claim 1 , characterized in that the door is a double-leaf door that opens and closes the open portion of the housing on both sides.

8. A housing having an internal space and an opening on one side; a door that is installed in the housing and that opens and closes the opening by a sliding movement; A propeller disposed in the interior space of the housing to provide a propulsive force for the air mobility vehicle; a link assembly having one end connected to the housing and the other end connected to the propeller, the link assembly adapted to draw the propeller into the interior space of the housing and to draw the propeller out of the housing through the opening; a door opening / closing unit that provides an opening / closing force to the door in conjunction with a retracting or pulling out operation of the propeller; An air mobility propulsion module, characterized in that a gas lifter is provided between the door and the housing, and the door always receives force in the closing direction.

9. A housing having an internal space and an opening on one side; a door that is installed in the housing and that opens and closes the opening by a sliding movement; A propeller disposed in the interior space of the housing to provide a propulsive force for the air mobility vehicle; a link assembly having one end connected to the housing and the other end connected to the propeller, the link assembly adapted to draw the propeller into the interior space of the housing and to draw the propeller out of the housing through the opening; a door opening / closing unit that provides an opening / closing force to the door in conjunction with a retracting or pulling out operation of the propeller; An air mobility propulsion module, characterized in that the propeller and the door are connected by a wire, and when the propeller is extended, the wire pulls the door to open it, and when the propeller is retracted, the wire is unwound to close the door.

10. The air mobility propulsion module as described in claim 9, characterized in that the wire is hung on a pulley provided in the housing, one end is extended to one side and connected to the propeller, and the other end is extended in the same direction as the one end and connected to the door.

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