High-power single-motor driven three-bladed electric paraglider

Abstract

This utility model discloses a high-power single-motor driven three-bladed electric paraglider, including a frame, a power supply mounted on the frame, and a propulsion mechanism mounted on the frame. The power supply is electrically connected to the propulsion mechanism to provide power. The propulsion mechanism propels the paraglider forward. The propulsion mechanism includes a ring-shaped mounting base, a brushless motor, and a blade assembly. The ring-shaped mounting base has a cylindrical structure. The stator of the brushless motor is fixed to the cylindrical structure, and the power supply line is located inside the cylindrical structure. The rotor of the brushless motor is rotatably sleeved around the stator, and the blade assembly is connected to the rotor. The blade assembly is integrated with the brushless motor through a quick-detachable structure. In this application, the three blades are evenly distributed and work with the high-power motor to increase the propulsion force. In addition, the blades are mounted on the rotor of the motor through a detachable structure, and the power is directly output through the rotor, avoiding the use of a complex transmission structure. This has the advantages of compact structure and high transmission efficiency, and the detachable installation also provides favorable conditions for subsequent operation and maintenance.

Description

Technical Field

[0001] This utility model relates to electric paragliders, and more particularly to a high-power single-motor driven three-bladed electric paraglider. Background Technology

[0002] Powered paragliding is a fashionable sport that combines skill, physical fitness, and intelligence; it is also a sport for the brave. The equipment used in powered paragliding is, to date, the smallest and most easily mastered powered manned aircraft. As an aircraft, powered paragliders are characterized by long endurance, low cost, small radar cross-section, and large payload capacity.

[0003] Patent application number 2023232769110 discloses a manned electric-powered glider, as shown in its appendix. Figure 2 As shown, its fan blades are directly fixed on the output shaft of the motor. This type of transmission often requires a gearbox or other structure. Moreover, the distance between the motor and the blades is relatively large, making it not compact enough and taking up a lot of space. Installation and disassembly are also more troublesome, affecting later operation and maintenance. Utility Model Content

[0004] In view of the shortcomings of existing technologies, such as the relatively complex and not compact indirect transmission structure, and the troublesome installation and disassembly, this utility model provides a high-power single-motor driven three-bladed electric paraglider.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A high-power, single-motor-driven, three-bladed electric paraglider includes a frame, a power supply mounted on the frame, and a propulsion mechanism mounted on the frame. The power supply is electrically connected to the propulsion mechanism to provide power. The propulsion mechanism propels the paraglider forward. The propulsion mechanism includes a ring-shaped mounting base, a brushless motor, and a blade assembly. The ring-shaped mounting base has a cylindrical structure. The stator of the brushless motor is fixed to the cylindrical structure, and a power supply line is located inside the cylindrical structure. The rotor of the brushless motor is rotatably mounted around the stator, and the blade assembly is connected to the rotor. The blade assembly includes:

[0007] End cap one, which is rotatably fitted with a cylindrical structure via a bearing, and has several heat dissipation holes on it;

[0008] End cap two, which is rotatably engaged with a cylindrical structure through a bearing, has several heat dissipation holes, and has three first mounting posts and three second mounting posts. The first mounting posts and the second mounting posts are arranged in a circular array and are alternately distributed.

[0009] An annular seat is located between end cap one and end cap two and is fixedly connected to both by screws. The rotor is fixed to the inner side wall of the annular seat.

[0010] The blade comprises three blades, each with a left mounting foot, a middle mounting foot, and a right mounting foot at its inner end. Each left mounting foot is a protruding structure, and each mounting foot has a mounting hole. The mounting holes on the right and left mounting feet of adjacent blades share a first mounting post, and the protruding structure of the right blade presses against the right mounting foot of the left blade.

[0011] A pressure plate that presses against the raised structure;

[0012] Fasteners are detachably connected to the first mounting post and, when fastened, press the pressure plate against the top surface of the upper convex mechanism.

[0013] Preferably, the fastener is a fastening nut that is threaded to the first mounting post. Its end has several sets of grooves extending outward from the end of the first mounting post and several sets of limiting slots. The fastener has radial pin holes with limiting pins passing through the limiting slots to prevent the fastening nut from falling off.

[0014] Preferably, the limiting pin includes an insertion part, a curling part, and a flanged part in sequence. The flanged part is parallel to the insertion part and its end is provided with a hook. The hook hooks onto the insertion part to form a ring structure. The curling part is curled into a circular structure to provide elasticity to one end of the hook so that the hook is tightly hooked onto the insertion part.

[0015] Preferably, the second mounting post has a boss at the top, and the pressure plate has an insertion hole for the boss to extend into. After installation, the boss extends into the insertion hole.

[0016] Preferably, both the first and second mounting posts are fitted with hollow I-shaped gaskets, and the blades are fitted onto the outer wall of the I-shaped gaskets through mounting holes.

[0017] Preferably, a soft washer is provided between the pressure plate and the fastener, and the soft washer is fitted onto the first limiting post.

[0018] Preferably, the annular seat has several outwardly extending mounting ears on its side wall, and the mounting ears have mounting screw holes, which are fixed to the frame by screws.

[0019] Preferably, the inner sidewall of the annular seat is provided with an annular step, and fixing holes are provided on the annular step, the sidewall of the annular seat, and the cylindrical structure. After the cylindrical structure is inserted into the annular seat and abuts against the annular step, the sidewall and end of the cylindrical structure are fixed to the sidewall of the annular seat and the annular step respectively by two sets of screws.

[0020] Preferably, the outer end of the cylindrical structure is provided with an end cap three, and an ultrasonic sensor for detecting obstacles is provided at the end cap three.

[0021] Preferably, the raised structure comprises a three-section structure formed by bending, wherein the first and third sections are parallel and the second section is inclined to create a height difference between the first and third sections, the height difference being the same as the thickness of the right mounting foot.

[0022] Compared with the prior art, the advantages of this utility model are: the three blade arrays are evenly distributed and cooperate with a high-power motor to increase the propulsion force. In addition, the blades are set on the rotor of the motor through a detachable structure, and the power is directly output through the rotor, avoiding the use of a complex transmission structure. It has the advantages of compact structure and high transmission efficiency. The detachable installation also provides favorable conditions for subsequent operation and maintenance. Attached Figure Description

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 This is a perspective view of the present application;

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 and Figure 4 Three-dimensional views of the blade assembly (from different directions);

[0027] Figure 5 This is a rear view of the blade assembly;

[0028] Figure 6 This is a sectional view of AA.

[0029] Figure 7 This is a sectional view of BB;

[0030] In the diagram: 10, frame; 20, power supply; 30, propulsion mechanism; 300, blade; 3001, right mounting foot; 3002, middle mounting foot; 3003, left mounting foot; 301, mounting base; 3011, annular step; 3012, mounting ear; 302, end cap one; 303, annular seat; 304, end cap two; 3041, first mounting post; 3042, second mounting post; 305, fastening screw; 3051, limit slot assembly; 3052, limit pin; 306, pressure plate; 307, end cap three; 308, ultrasonic sensor. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0032] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0033] This embodiment mainly describes the title of the high-power single-motor driven three-bladed electric paraglider, as follows:

[0034] See attached document Figures 1-7 A high-power, single-motor driven, three-bladed electric paraglider includes a frame 10, a power supply 20 mounted on the frame 10, and a propulsion mechanism 30 mounted on the frame 10. The power supply 20 is electrically connected to the propulsion mechanism 30 to supply power to the propulsion mechanism 30, and the power supply 20 forms a counterweight to reduce the impact of the rotation of the blade assembly. The propulsion mechanism 30 propels the paraglider forward. The propulsion mechanism 30 includes an annular mounting base 301, a brushless motor, and a blade assembly. The annular mounting base 301 has a cylindrical structure. The stator of the brushless motor is fixed to the cylindrical structure, and a power supply line is provided inside the cylindrical structure. The rotor of the brushless motor is rotated and sleeved around the stator, and the blade assembly is connected to the rotor. The blade assembly includes:

[0035] End cap 302, which is rotatably coupled to a cylindrical structure via a bearing, and has several heat dissipation holes;

[0036] End cap 304 is rotatably fitted with a cylindrical structure via a bearing. It has several heat dissipation holes and three first mounting posts 3041 and three second mounting posts 3042 at its end. The first mounting posts 3041 and the second mounting posts 3042 are arranged in a circular array and are alternately distributed.

[0037] An annular seat 303 is disposed between end cover one 302 and end cover two 304 and is fixedly connected to both by screws. The rotor is fixed to the inner side wall of the annular seat 303.

[0038] The blade 300 includes three blades, each of which has a left mounting foot 3003, a middle mounting foot 3002 and a right mounting foot 3001 at its inner end. Each left mounting foot 3003 is a protruding structure. Each mounting foot has a mounting hole. The mounting holes on the right mounting foot 3001 and the left mounting foot 3003 of adjacent blades share a first mounting post 3041. The protruding structure of the right blade presses against the right mounting foot 3001 of the left blade.

[0039] Pressure plate 306, which presses against the raised structure;

[0040] Fastener 305 is detachably connected to the first mounting post 3041, and when fastened, it presses the pressure plate 306 against the top surface of the protruding structure. In this design, the three blades 300 are evenly distributed in an array, which, compared to ordinary two-bladed aircraft, can increase thrust when combined with a high-power motor. In addition, the blades 300 are detachably mounted on the rotor of the motor, and the power is directly output through the rotor, avoiding the use of a complex transmission structure. This design has the advantages of compact structure and high transmission efficiency, and the detachable installation also provides favorable conditions for subsequent operation and maintenance.

[0041] Preferably, the fastener 305 is a fastening nut and is threadedly connected to the first mounting post 3041. Its end is provided with several sets of limiting slots 3051 extending outward from the end of the first mounting post 3041. The fastener 305 is provided with radial pin holes and limiting pins 3052 passing through the limiting slots 3051 in the pin holes to prevent the fastening nut from falling off.

[0042] Preferably, the limiting pin 3052 includes an insertion part, a curling part and a flanged part in sequence. The flanged part is parallel to the insertion part and its end is provided with a hook. The hook hooks onto the insertion part to form a ring structure. The curling part is curled into a circular structure to provide elasticity to one end of the hook so that the hook is tightly hooked onto the insertion part.

[0043] Preferably, the second mounting post 3042 has a boss at the top, and the pressure plate 306 has an insertion hole for the boss to extend into. After installation, the boss extends into the insertion hole.

[0044] Preferably, both the first mounting post 3041 and the second mounting post 3042 are fitted with hollow I-shaped gaskets, and the blade 300 is fitted onto the outer wall of the I-shaped gasket through the mounting hole.

[0045] Preferably, a soft washer is provided between the pressure plate 306 and the fastener 305, and the soft washer is sleeved on the first mounting post 3041.

[0046] Preferably, the annular seat 303 has several outwardly extending mounting ears 3012 on its side wall, and the mounting ears 3012 are provided with mounting screw holes, which are fixed to the frame 10 by screws.

[0047] Preferably, the inner sidewall of the annular seat 303 is provided with an annular step 3011. Fixing holes are provided on the annular step 3011, the sidewall of the annular seat 303, and the cylindrical structure. After the cylindrical structure is inserted into the annular seat 303 and abuts against the annular step 3011, the sidewall and end of the cylindrical structure are fixed to the sidewall of the annular seat 303 and the annular step 3011 respectively by two sets of screws.

[0048] Preferably, the outer end of the cylindrical structure is provided with an end cap 307, and an ultrasonic sensor 308 for detecting obstacles is provided at the end cap 307.

[0049] Preferably, the protruding structure comprises a three-section structure formed by bending, wherein the first and third sections are parallel and the second section is inclined to create a height difference between the first and third sections, the height difference being the same as the thickness of the right mounting foot 3001.

[0050] In this embodiment, during disassembly, first pull out the limiting pin 3052, then tighten the fastening nut to remove the pressure plate 306, then remove the blade 300. The end cover and annular seat 303 can then be removed in sequence. The mounting base 301 and the cylindrical structure can also be disassembled. The entire structure is detachable, and the internal wiring of the cylindrical structure is concealed. Simultaneously, the end cover 307 is provided with heat dissipation holes, allowing the internal structure of the cylindrical structure to also be used for heat dissipation. The cylindrical structure and mounting base 301 can be an integral structure or a separate structure. Additionally, it should be noted that... Figure 3-5 The pressure plate 306 has been hidden.

[0051] The above provides a detailed description of the high-power single-motor driven three-bladed electric paraglider provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-power single-motor driven three-bladed electric paraglider, comprising a frame, a power supply mounted on the frame, and a propulsion mechanism mounted on the frame. The power supply is electrically connected to the propulsion mechanism to provide power to the propulsion mechanism, which propels the paraglider forward. The propulsion mechanism includes an annular mounting base, a brushless motor, and a blade assembly. The annular mounting base has a cylindrical structure. The stator of the brushless motor is fixed to the cylindrical structure, and a power supply line is provided inside the cylindrical structure. The rotor of the brushless motor is rotatably sleeved around the stator, and the blade assembly is connected to the rotor. The paraglider is characterized in that... The blade assembly includes: End cap one, which is rotatably fitted with a cylindrical structure via a bearing, and has several heat dissipation holes on it; End cap two, which is rotatably engaged with a cylindrical structure through a bearing, has several heat dissipation holes, and has three first mounting posts and three second mounting posts. The first mounting posts and the second mounting posts are arranged in a circular array and are alternately distributed. An annular seat is located between end cap one and end cap two and is fixedly connected to both by screws. The rotor is fixed to the inner side wall of the annular seat. The blade comprises three blades, each with a left mounting foot, a middle mounting foot, and a right mounting foot at its inner end. Each left mounting foot is a protruding structure, and each mounting foot has a mounting hole. The mounting holes on the right and left mounting feet of adjacent blades share a first mounting post, and the protruding structure of the right blade presses against the right mounting foot of the left blade. A pressure plate that presses against the raised structure; Fasteners are detachably connected to the first mounting post and, when fastened, press the pressure plate against the top surface of the upper convex mechanism.

2. The high-power single-motor driven three-bladed electric glider according to claim 1, characterized in that, The fastener is a fastening nut that is threaded to the first mounting post. Its end has several sets of limiting slots extending outward from the end of the first mounting post. The fastener has radial pin holes with limiting pins passing through the limiting slots to prevent the fastening nut from falling off.

3. The high-power single-motor driven three-bladed electric glider according to claim 2, characterized in that, The limiting pin includes an insertion part, a curling part, and a flanged part in sequence. The flanged part is parallel to the insertion part and its end is provided with a hook. The hook hooks onto the insertion part to form a ring structure. The curling part is curled into a circular structure to provide elasticity to one end of the hook so that the hook is tightly hooked onto the insertion part.

4. The high-power single-motor driven three-bladed electric glider according to claim 1, characterized in that, The second mounting post has a boss at the top, and the pressure plate has an insertion hole for the boss to extend into. After installation, the boss extends into the insertion hole.

5. The high-power single-motor driven three-bladed electric paraglider according to claim 1, characterized in that, Hollow I-shaped gaskets are fitted onto both the first and second mounting posts, and the blades are fitted onto the outer wall of the I-shaped gaskets through mounting holes.

6. The high-power single-motor driven three-bladed electric paraglider according to claim 1 or 5, characterized in that, A soft washer is provided between the pressure plate and the fastener, and the soft washer is sleeved on the first limiting post.

7. The high-power single-motor driven three-bladed electric paraglider according to claim 1, characterized in that, The annular seat has several outwardly extending mounting ears on its side wall, and the mounting ears are provided with mounting screw holes, which are fixed to the frame by screws.

8. The high-power single-motor driven three-bladed electric glider according to claim 7, characterized in that, The inner wall of the annular seat is provided with an annular step. Fixing holes are provided on the annular step, the side wall of the annular seat, and the cylindrical structure. After the cylindrical structure is inserted into the annular seat and abuts against the annular step, the side wall and end of the cylindrical structure are fixed to the side wall of the annular seat and the annular step respectively by two sets of screws.

9. The high-power single-motor driven three-bladed electric glider according to claim 1, characterized in that, The outer end of the cylindrical structure is provided with end cap three, and ultrasonic sensors for detecting obstacles are provided at end cap three.

10. The high-power single-motor driven three-bladed electric glider according to claim 1, characterized in that, The raised structure comprises a three-section structure formed by bending, with the first and third sections parallel and the second section inclined to create a height difference between the first and third sections, which is the same as the thickness of the right mounting foot.

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