Electric-driven paramotor power device and electric-driven paramotor

Abstract

The present invention belongs to the technical field of aviation sports equipment. Specifically, the present invention relates to an electric-driven paramotor power device and an electric-driven paramotor power device. The electric-driven paramotor power device includes a fuselage, a power battery system, a propeller system and a control handle; the fuselage includes a center disk, a support arm and a guard frame; the center disk is connected to the support arm, and the support arm is connected to the guard frame; the cross-section of the support arm along the radial direction of the fuselage is an aerodynamic airfoil; the power battery system and the propeller system are installed on the center disk, the power battery system is connected to the propeller system, and the propeller system is connected to the control handle. The electric-driven paramotor power device includes an electric-driven paramotor power device, a parachute body and parachute ropes. Compared with the internal combustion engine power parachute, the present invention has the characteristics of low noise, low vibration, low pollution and easy operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation sports equipment, and in particular, the present invention relates to an electric-driven paramotor power device and an electric-driven paramotor power. Background Art

[0002] Powered paragliders are a kind of aviation sports equipment, suitable for aviation experience flights, flight performances, aerial advertising and aerial photography. They are a popular light powered aircraft in the field of aviation sports. For a long time, powered paragliders have been using internal combustion engines as their power source. However, internal combustion engines have problems such as large vibration, high noise, high emission pollution, and large size that is not easy to carry, which seriously affects the entertainment and comfort of powered paragliders and is not conducive to the popularization of powered paraglider aviation sports.

[0003] With the rapid development of battery technology, the trend of electricity replacing fossil fuels as the main energy source is becoming more and more obvious. In addition, the current battery and motor technology can already provide sufficient power for power parachutes, and the combination of power parachutes and electric drive has become a trend. Summary of the invention

[0004] The present invention provides an electric-driven paramotor power device and an electric-driven paramotor power, which can not only solve the technical problems of large vibration, large noise and large pollution of internal combustion engine paramotor power in the prior art, but also solve the technical problem of poor maneuverability of paramotor power in the prior art.

[0005] In order to solve the above problems, the present invention provides an electric-driven paramotor power device and an electric-driven paramotor power device, and the technical solutions thereof are as follows:

[0006] A power device for an electric-driven paramotor comprises a body, a power battery system, a propeller system and a control handle; the body comprises a central disk, a support arm and a guard frame; the central disk is connected to the support arm, and the support arm is connected to the guard frame; the support arm has an aerodynamic airfoil-shaped cross-section along the radial direction of the body, and is used to generate a torque to offset the reverse torque of the propeller system; the power battery system and the propeller system are mounted on the central disk, the power battery system is connected to the propeller system, and the propeller system is connected to the control handle.

[0007] The electric-driven paramotor power device as described above is further preferably configured such that: there are multiple support arms, and the multiple support arms are evenly distributed along the circumferential direction of the center disk; the support arms are rotatably connected to the center disk, and the rotation axis is along the radial direction of the center disk.

[0008] The electric-driven paramotor power device as described above is further preferably configured such that the aerodynamic airfoil of the support arm along the radial cross section of the fuselage is a NACA4112 airfoil.

[0009] The electric-driven paramotor power device as described above is further preferably configured such that the rotation angle range of the support arm is 0° to 45°.

[0010] The electric-driven paramotor power device as described above is further preferably configured as follows: the support arm is a foldable support arm, and the support arm is movably connected to the guard frame; the support arm is connected to the center disk via a first spring hinge, and the first spring hinge is used to realize the folding of the support arm.

[0011] The electric-driven paramotor power device as described above is further preferably configured such that the axis of the folding rotation of the support arm is along the tangent direction of the central disk, and the folding angle range of the support arm is 60° to 120°.

[0012] As for the electric-driven paramotor power device as mentioned above, it is further preferred that: the guard frame is ring-shaped, the axis of the ring coincides with the axis of the propulsion system, the guard frame includes a plurality of frame segments, and the support arms correspond to the frame segments one by one; the ends of the support arms are T-shaped, and the two lateral ends of each T are respectively connected to one of the frame segments to connect a plurality of the frame segments to form the guard frame.

[0013] The electric-driven paramotor power device as described above is further preferably configured such that the number of the frame segments and the number of the support arms are both 6.

[0014] The electric-driven paramotor power device as described above is further preferably configured such that: a parachute rope guide frame is provided on the end of the support arm and / or the guard frame, and there are two parachute rope guide frames, and the two parachute rope guide frames are symmetrically arranged, and the symmetry plane is the symmetry plane of the guard frame in a vertical manner.

[0015] As for the electric-driven paramotor power device as mentioned above, it is further preferred that: the parachute rope guide frame is connected to the end of the support arm and / or the guard frame by any one of magnetic adsorption connection, bolt connection, and clamping connection, and the connection position is adjustable.

[0016] As for the electric-driven paramotor power device as mentioned above, it is further preferred that: the power battery system includes a battery module, a battery management system and a contactor unit; the battery management system is connected to the battery module, the battery module is connected to the contactor, and the contactor is respectively connected to the control handle and the thruster system.

[0017] The electric-driven paramotor power device as described above is further preferably configured such that: the battery management system is also connected to a speaker, and the speaker is used for providing voice prompts of the temperature and charge state of the battery module.

[0018] The electric-driven paramotor power device as described above is further preferably configured such that: the battery module uses a lithium-ion battery, including a plurality of battery cells connected in series.

[0019] As for the electric-driven paramotor power device as mentioned above, it is further preferred that: the power battery system also includes a replaceable battery module box, the replaceable battery module box is detachably mounted on the central disk, and is used to accommodate the battery module and the data acquisition hub and temperature sensor of the battery management system; the replaceable battery module box is provided with a quick-connect plug, one end of the quick-connect plug is connected to the battery module, and the other end is connected to the contactor.

[0020] The electric-driven paramotor power device as described above is further preferably: the propulsion system includes a motor controller, a motor and a propeller; the motor is installed on the central disk, located above the power battery system, and the motor controller and the propeller are installed on the motor; the motor controller is connected to the motor, and is also connected to the power battery system and the control handle, and is used to monitor and control the working status of the motor.

[0021] The electric-driven paramotor power device as described above is further preferably: facing the propeller, the propeller provides forward power to the body when rotating counterclockwise, the propeller is a two-blade straight propeller or a three-blade propeller, and the propeller is made of carbon fiber reinforced composite material.

[0022] As for the electric-driven paramotor power device as mentioned above, it is further preferred that: the motor is a permanent magnet synchronous motor, and the motor controller is connected to the motor to form an integrated structure.

[0023] The electric-driven paramotor power device as mentioned above is further preferably: a Hall displacement sensor and a motor speed regulation PWM signal unit are installed in the control handle; the throttle button of the control handle is connected to the Hall displacement sensor, the Hall displacement sensor is connected to the motor speed regulation PWM signal unit, and the motor speed regulation PWM signal unit is connected to the propeller system; the Hall displacement sensor is used to generate a throttle amount signal according to the pressing angle of the throttle button, and input the throttle amount signal into the motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is used to output motor speed control square waves with different duty cycles to the propeller system.

[0024] The electric-driven paramotor power device as described above is further preferably configured such that: a display screen is also provided on the control handle, and the display screen is respectively connected to the power battery system and the Hall displacement sensor for displaying parameter information of the power battery system and the thruster system.

[0025] For the electric-driven paramotor power device as described above, it is further preferred that: the parameter information includes charge state and throttle amount.

[0026] The electric-driven paramotor power device as described above is further preferably configured as follows: a Hall displacement sensor and a motor speed regulation PWM signal unit are installed on the body; the control handle is connected to the Hall displacement sensor via a pull wire, and the pull wire is used to transmit the pressing angle of the throttle button of the control handle to the Hall displacement sensor; the Hall displacement sensor is connected to the motor speed regulation PWM signal unit, and the motor speed regulation PWM signal unit is connected to the thruster system.

[0027] The electric-driven paramotor power device as described above is further preferably configured as follows: a fixing hole is provided on the fuselage, the fixing hole is used to fix the seat bag; the center plate is connected to a machine foot and a boom, the machine foot is located below the boom, the machine foot is used to protect the propulsion system, the boom is connected to the parachute rope and the fuselage at the same time, and is used to bear the weight of the electric-driven paramotor power device and the operator during flight.

[0028] The electric-driven paramotor power device as described above is further preferably configured such that: the machine foot is hinged to the central disk, and the boom is hinged to the power battery system, and can be folded together with the support arm.

[0029] An electric powered parachute comprises an umbrella rope, an umbrella body respectively connected to two ends of the umbrella rope, and a power device of the electric powered parachute.

[0030] As for the electric powered parachute as mentioned above, it is further preferred that: the upper surface of the parachute body is covered with a flexible photovoltaic film panel, and the flexible photovoltaic film panel is connected to the power battery system through an electric wire, one end of the electric wire is connected to the flexible photovoltaic film panel and extends downward along the parachute rope, and the other end is connected to the battery module for charging the power battery system using solar energy.

[0031] It can be seen from the analysis that compared with the prior art, the advantages and beneficial effects of the present invention are:

[0032] Compared with the prior art, the present invention adopts electric drive as the power, which can solve the problems of high noise, high vibration and environmental pollution of the existing internal combustion engine powered parachutes; at the same time, the present invention designs the shape of the support arm of the fuselage and uses the aerodynamic wing shape of the support arm to generate torque to offset or partially offset the reverse torque of the propeller system on the fuselage, thereby improving the control performance of the electric-driven powered parachute.

[0033] At the same time, the windward surface area of ​​the support arm of the present invention is adjustable, which is convenient for adjusting the torque generated by the support arm; the support arm is a foldable support arm and is detachable from the protective frame, which can reduce the volume of the body and is convenient for storage and use; the present invention is also provided with an umbrella rope guide frame with adjustable position, which is convenient for raising the umbrella; it is powered by a battery module, and a replaceable battery module box is used to accommodate the battery module, which is convenient for replacement and maintenance of the battery module; when arranging components, the installation position of the Hall displacement sensor and the motor speed regulation PWM signal unit can be the body or the control handle, and the arrangement form is diverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The structure of the electric powered paramotor power device of the present invention is shown in FIG. Figure 1 .

[0035] Figure 2 The structure of the electric powered paramotor power device of the present invention is shown in FIG. Figure 2 .

[0036] Figure 3 It is a schematic diagram of the folded state of the electric-driven paramotor power device of the present invention.

[0037] Figure 4 It is a schematic diagram of the connection between the first spring hinge and the support arm of the present invention.

[0038] Figure 5 It is a schematic diagram of the connection between the base and the spring leaf of the first spring hinge of the present invention.

[0039] Figure 6 It is a schematic structural diagram of the connecting body of the first spring hinge of the present invention.

[0040] Figure 7 It is a connection diagram of the power device of the electric-driven paramotor of the present invention.

[0041] Figure 8 It is a structural schematic diagram of the frame segment of the present invention.

[0042] Fig. 9 It is a schematic structural diagram of the control handle of the present invention.

[0043] Fig.10 It is a schematic diagram of the connection between the support arm and the connector of the present invention.

[0044] In the figure: 1-protection frame; 2-parachute rope guide frame; 3-support arm; 4-propeller; 5-power battery system; 6-machine foot; 7-motor; 8-first spring hinge; 81-base; 82-spring leaf; 83-connector; 9-jib; 10-center disk; 11-frame segment; 12-control handle; 121-display screen; 13-pin. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0047] Please refer to Figures 1 to 10 ,in, Figure 1 The structure of the electric powered paramotor power device of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the electric powered paramotor power device of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the folded state of the power device of the electric-driven paramotor of the present invention; Figure 4 It is a schematic diagram of the connection between the first spring hinge and the support arm of the present invention; Figure 5 It is a schematic diagram of the connection between the base and the spring sheet of the first spring hinge of the present invention; Figure 6 It is a structural schematic diagram of a connecting body of a first spring hinge of the present invention; Figure 7 It is a connection diagram of the power device of the electric-driven paramotor of the present invention; Figure 8 It is a structural schematic diagram of a frame segment of the present invention; Fig. 9 It is a structural schematic diagram of the control handle of the present invention; Fig.10 It is a schematic diagram of the connection between the support arm and the connector of the present invention.

[0048] like Figures 1 to 3 , Fig. 9As shown, the present invention provides an electric-driven paramotor power device, which mainly includes a body, a power battery system 5, a propeller system and a control handle 12. The body includes a central disk 10, a support arm 3 and a guard frame 1; the central disk 10 is connected to one end of the support arm 3, and the other end of the support arm 3 is connected to the guard frame 1. The cross-section of the support arm 3 along the radial direction of the body is an aerodynamic airfoil, which can generate a torque to offset the reverse torque of the propeller system; the power battery system 5 and the propeller system are installed on the central disk 10, the power battery system 5 is connected to the propeller system, and the propeller system is connected to the control handle 12.

[0049] Specifically, the power device of the electric-driven power parachute of the present invention provides an installation position through the body, and the power battery system 5 and the propeller system are installed on the central disk 10 of the body. The power battery system 5 can provide power support for the operation of the propeller system, and the propeller system can generate thrust for the body to move forward, providing power for the operation of the electric-driven power parachute. At the same time, the body of the present invention includes a central disk 10, a support arm 3 and a protective frame 1. The central disk 10 can provide an installation position for the power battery system 5 and the propeller system; the protective frame 1 can protect the propeller system and prevent the parachute rope from being entangled in the propeller 4 of the propeller system and causing danger. When the propeller system is running, the propeller 4 of the propeller system rotates clockwise or counterclockwise. The unidirectional rotation can provide thrust for the body, but the body will be subjected to a reverse torque applied by the propeller 4 around the rotating shaft. This reverse torque affects the maneuverability of the electric-driven powered parachute. The cross section of the arm 3 along the radial direction of the body of the present invention is an aerodynamic airfoil. When the air flows through the two sides of the arm 3, a pressure difference can be generated, thereby generating a torque, which can offset or partially offset the reverse torque applied by the propeller 4 to the body, thereby improving the maneuverability. Compared with the prior art, the present invention adopts electric drive as the power, which can solve the problems of the existing internal combustion engine powered parachute with high noise, high vibration and environmental pollution; at the same time, the present invention designs the shape of the arm 3 of the body, and uses the aerodynamic airfoil of the arm 3 to generate a torque to offset or partially offset the reverse torque of the propeller system on the body, which can also improve the maneuverability of the electric-driven powered parachute, making the electric-driven powered parachute easy to operate.

[0050] Further, such as Figure 1 , Figures 4 to 6 As shown, in the present invention, there are multiple arms 3, and the multiple arms 3 are evenly distributed along the circumferential direction of the center disk 10, which can make the torque on the body more balanced. The arm 3 is rotatably connected to the center disk 10, and the rotation axis is along the radial direction of the center disk 10, so that the windward surface area of ​​the arm 3 can be adjusted, thereby adjusting the torque value generated by the arm 3. Preferably, the number of arms 3 is six, which are evenly distributed along the circumferential direction of the center disk 10, and the aerodynamic airfoil of the arm 3 along the radial section of the body is a NACA4112 airfoil, and the rotation angle range is 0° to 45°.

[0051] Furthermore, as shown in the figure, in the present invention, the arm 3 is a foldable arm, and the arm 3 is movably connected to the guard frame 1. Specifically, the arm 3 is connected to the center disk 10 through the first spring hinge 8, so that the arm 3 can be folded through the first spring hinge 8 to reduce the volume of the body and facilitate the storage of the electric-driven paramotor power device. When folding, the axis of the folding rotation of the arm 3 is along the tangent direction of the center disk 10, and the folding angle range of the arm 3 is 60° to 120°, preferably 90°. The folded electric-driven paramotor power device is similar to a cylinder, which is small in size, easy to carry and easy to use.

[0052] like Figures 4 to 6 As shown, in the present invention, the first spring hinge 8 is installed on the center disk 10 by bolts, and the first spring hinge 8 is movably connected to the support arm 3. The first spring hinge 8 includes a base 81, a spring sheet 82 and a connector 83; the base 81 is installed on the center disk 10, and can provide a mounting position for the spring sheet 82 and the connector 83; the spring sheet 82 is installed on the base 81, and abuts against the bottom of the connector 83; the connector 83 is provided with a rotating shaft and a connecting shaft, the rotating shaft is connected to the base 81, and can rotate on the base 81 along the axis of the rotating shaft, the connecting shaft is movably connected to one end of the support arm 3, and the support arm 3 can rotate around the axis of the connecting shaft.

[0053] Further, such as Figures 1 to 4 , Figure 8 , Fig.10 As shown, in the present invention, the protective frame 1 is annular, and the axis of the annular shape coincides with the rotation axis of the propeller 4 of the propulsion system, which can protect the propeller 4 while simplifying the volume of the body. In order to facilitate the disassembly of the protective frame 1, when designing the connection form between the protective frame 1 and the support arm 3, the protective frame 1 and the support arm 3 are plug-in settings, and positioning beads are installed at the joint to fix the relative connection position. Specifically, the protective frame 1 includes a plurality of frame segments 11, preferably six, and the number of frame segments 11 corresponds to the number of support arms 3. One end of the support arm 3 is movably connected to the first spring hinge 8, and the other end of the support arm 3 is T-shaped. The two ends of each T-shaped transverse direction are respectively connected to a frame segment 11 to connect multiple frame segments 11 to form the protective frame 1, which is convenient for plugging and unplugging the frame segment 11. A hemispherical groove is provided on the inner surface of the frame segment 11, and a positioning bead is provided on the outer surface of the place on the support arm 3 for connecting with the frame segment 11. When the frame segment 11 is connected to the support arm 3, the positioning bead is just located in the hemispherical groove. In one embodiment of the present invention, the lateral (arc segment) and vertical (aerodynamic airfoil) of the T-shape are both made of carbon fiber and can be bonded by high-strength adhesive. After the angle adjustment of the aerodynamic airfoil is completed, the fastening between the arc segment and the aerodynamic airfoil can be achieved. (The lateral and vertical parts of the T-shape are bonded and fixed, and the support arm 3 is positioned on the first spring hinge 8 by the pin 13; for motors with a certain thrust, the positioning angle is different; in actual use, this angle is not adjustable).

[0054] Further, such as Figure 1 and Figure 2 As shown, in the present invention, a parachute rope guide frame 2 is provided at the end of the support arm 3 and / or the protective frame 1, and there are two parachute rope guide frames 2, which are symmetrically arranged, and the symmetry plane is the symmetry plane of the protective frame 1 in a vertical manner. Before taking off, two or two groups of parachute ropes are respectively placed in the corresponding parachute rope guide frames 2 to facilitate the parachute.

[0055] Further, such as Figure 1 and Figure 2 As shown, in order to facilitate the adjustment of the installation position of the parachute rope guide frame 2 according to the actual use situation, in the present invention, the installation position of the parachute rope guide frame 2 is adjustable. The parachute rope guide frame 2 can be connected to the end of the support arm 3 and / or the protective frame 1 by any connection method of magnetic adsorption connection, bolt connection, and clamp connection. Among them, when the connection method adopts magnetic adsorption connection, multiple permanent magnetic materials are pre-embedded on the end of the support arm 3 and / or the protective frame 1, and the parachute rope guide frame 2 is adsorbed by the permanent magnetic material, and the permanent magnetic material is preferably neodymium iron boron; when the connection method adopts bolt connection, multiple bolt holes are pre-opened on the end of the support arm 3 and / or the protective frame 1, and one or more bolt holes are opened on the parachute rope guide frame 2, and the parachute rope guide frame 2 is fastened with the end of the support arm 3 and / or the protective frame 1 by bolts; when the connection method adopts clamp connection, multiple card slots are preset on the end of the support arm 3 and / or the protective frame 1, and the parachute rope guide frame 2 is clamped in the card slot to realize the installation and adjustment of the parachute rope guide frame 2.

[0056] Furthermore, in the present invention, the power battery system 5 includes a battery module, a battery management system and a contactor unit. The battery management system is connected to the battery module and can manage the operating status of the battery module; the battery module is connected to the contactor and can supply power to the thruster system; the contactor is respectively connected to the control handle 12 and the thruster system. Preferably, the battery module adopts a lithium-ion battery, including a plurality of battery cells connected in series. In one embodiment of the present invention, the battery module can adopt a 50Ah large-monomer lithium-ion battery including 24 battery cells connected in series.

[0057] Furthermore, in the present invention, the battery management system is also connected to a speaker, and the speaker can give voice prompts of the temperature and charge state of the battery module.

[0058] Further, such as Figure 1 and Figure 2As shown, in the present invention, the power battery system 5 also includes a replaceable battery module box. The replaceable battery module box is detachably mounted (for example, fastened by bolts) on the central disk 10, and can provide installation space for the battery module and the data acquisition hub and temperature sensor of the battery management system. The replaceable battery module box is provided with a quick-connect plug, and the battery module and the data acquisition hub and temperature sensor of the battery management system are installed in the replaceable battery module box. The battery module is connected to the quick-connect plug and is connected to the contactor through the quick-connect plug. The connection between the quick-connect plug and the contactor is detachable, so that the battery module is easy to remove from the power battery system 5, and the replacement and maintenance of the battery module are convenient.

[0059] Further, such as Figure 1 As shown, in the present invention, the propeller system includes a motor controller, a motor 7 and a propeller 4. The motor 7 is mounted on the central disk 10, located above the replaceable battery module box of the power battery system 5, and the motor controller and the propeller 4 are mounted on the motor 7. The motor controller is connected to the motor 7, and is also connected to the power battery system 5 and the control handle 12. The control handle 12 and the motor controller are connected by wire for signal transmission (the control handle 12 is held in the hands of the operator when in use, and the control handle 12 is installed on the body when not in use, or the control handle 12 is independently set and connected to the motor controller by wireless connection), which can monitor and control the working state of the motor 7. In an embodiment of the present invention, preferably when facing the propeller 4, the propeller 4 rotates counterclockwise to provide forward power to the body, and the propeller 4 can be selected in a variety of ways, for example, the propeller 4 is a two-blade straight propeller or a three-blade propeller. The motor 7 is preferably a permanent magnet synchronous motor, and the motor controller is connected to the motor to form an integrated structure.

[0060] Furthermore, in the invention, the throttle button of the control handle 12 is connected to a Hall displacement sensor, which is connected to a motor speed regulation PWM signal unit, which is connected to a motor controller of the propeller system. The Hall displacement sensor can generate a throttle amount signal according to the pressing angle of the throttle button, and input the throttle amount signal into the motor speed regulation PWM signal unit. The motor speed regulation PWM signal unit can output motor speed control square waves with different duty cycles to the motor controller of the propeller system, thereby driving the motor 7 to rotate.

[0061] Furthermore, in order to enrich the arrangement of the present invention, in the present invention, the installation positions of the Hall displacement sensor and the motor speed regulation PWM signal unit can be divided into two places. First, the Hall displacement sensor and the motor speed regulation PWM signal unit are installed in the control handle 12; second, the Hall displacement sensor and the motor speed regulation PWM signal unit are installed on the machine body. At this time, the control handle 12 is connected to the Hall displacement sensor through a pull wire, and the pull wire can transmit the pressing angle of the throttle button of the control handle 12 to the Hall displacement sensor.

[0062] Further, such as Fig. 9 As shown, in the present invention, the control handle 12 is also provided with a display screen 121, which is connected to the battery management system and the Hall displacement sensor respectively, and can display parameter information of the power battery system 5 and the thruster system. The parameter information includes but is not limited to the throttle amount and the charge state of the battery module.

[0063] Further, such as Figure 1 and Figure 2 As shown, in the present invention, the fuselage is also provided with a fixing hole, which can fix the seat bag (not shown in the figure). During flight, the operator sits in the seat bag to operate. The central disk 10 of the fuselage is connected to the machine foot 6 and the power battery system 5. The machine foot 6 is located below the boom 9, and the central disk 10 is fixedly connected to the box of the power battery system 5. A detachable battery module is installed in the box of the power battery system 5. The machine foot 6 can protect the propeller 4 of the propulsion system. The boom 9 is connected to the parachute rope and the fuselage at the same time, and can bear the weight of the electric-driven power parachute power device and the operator during flight. Preferably, the machine foot 6 is hinged to the center disk 10, and the boom 9 is hinged to the box of the power battery system 5, and can be folded together with the support arm 3. In one embodiment of the present invention, when the connection is hinged, bolts are installed on the box of the power battery system 5, and light holes are provided on the boom 9. The light holes are sleeved on the bolts and can cooperate with the bolts to rotate, thereby realizing the rotation (folding) of the boom 9; when the connection is hinged, the machine foot 6 is connected to the center disk 10 through a second spring hinge, and the structure of the second spring hinge is the same as that of the first spring hinge 8. When the machine foot 6 is connected to the second spring hinge, the connecting body of the machine foot 6 and the second spring hinge is welded.

[0064] Further, such as Figures 1 to 6 As shown, during implementation, the center plate 10, the parachute rope guide frame 2, the machine foot 6, and the boom 9 are preferably made of aluminum alloy; the support arm 3, the guard frame 1, and the propeller 4 are preferably made of carbon fiber reinforced composite material.

[0065] At the same time, the present invention also provides an electric powered parachute, comprising a parachute rope, a parachute body connected to both ends of the parachute rope, and an electric powered parachute power device. The electric powered parachute of the present invention uses the electric powered parachute power device of the present invention as a propulsion power, and has the characteristics of low vibration, low noise, low emission pollution, and easy control compared to an internal combustion engine powered parachute.

[0066] Furthermore, in one embodiment of the present invention, the upper surface of the umbrella body can also be covered with a flexible photovoltaic film panel, which is connected to the power battery system 5 through wires. One end of the wire is connected to the flexible photovoltaic film panel and extends downward along the umbrella rope, and the other end is connected to the battery module. Solar energy can be used to charge the power battery system 5, saving energy consumption.

[0067] In summary, the advantages and beneficial effects of the present invention are:

[0068] Compared with the prior art, the present invention adopts electric drive as the power source, which can solve the problems of high noise, high vibration and environmental pollution of the existing internal combustion engine powered parachutes; at the same time, the present invention designs the shape of the support arm 3 of the body, and uses the aerodynamic wing profile of the support arm 3 to generate torque to offset or partially offset the reverse torque of the propeller system on the body, thereby improving the control performance of the electric-driven powered parachute.

[0069] At the same time, the windward surface area of ​​the support arm 3 of the present invention is adjustable, which is convenient for adjusting the torque generated by the support arm 3; the support arm 3 is a foldable support arm 3 and is detachable from the protective frame 1, which can reduce the volume of the body and is convenient for storage and use; the present invention is also provided with an umbrella rope guide frame 2 with adjustable position, which is convenient for raising the umbrella; it is powered by a battery module, and a replaceable battery module box is used to accommodate the battery module, which is convenient for replacement and maintenance of the battery module; when arranging components, the installation position of the Hall displacement sensor and the motor speed regulation PWM signal unit can be the body or the control handle 12, and the arrangement form is diverse.

[0070] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. An electric-driven paramotor power device, characterized in that: include: Airframe, power battery system, propulsion system and control handle; The body comprises a central disk, a support arm and a guard frame; the central disk is connected to the support arm, and the support arm is connected to the guard frame; the support arm has an aerodynamic airfoil section along the radial direction of the body, which is used to generate a torque to offset the reverse torque of the propeller system; the support arm is rotatably connected to the central disk, and the rotation axis is along the radial direction of the central disk; There are multiple support arms, and the multiple support arms are evenly distributed along the circumferential direction of the central disk; The aerodynamic airfoil of the support arm along the radial cross section of the fuselage is a NACA4112 airfoil; The rotation angle range of the support arm is 0° to 45°; The support arm is a foldable support arm, and the support arm is movably connected to the guard frame; the support arm is connected to the central disk through a first spring hinge, and the first spring hinge is used to realize the folding of the support arm; The axis of the folding rotation of the support arm is along the tangent direction of the central disk, and the folding angle range of the support arm is 60° to 120°; The guard frame is annular, the axis of the annular shape coincides with the axis of the thruster system, the guard frame includes a plurality of frame segments, the support arms correspond to the frame segments one by one; the ends of the support arms are T-shaped, and the two transverse ends of each T-shaped arm are respectively connected to a frame segment to connect a plurality of frame segments to form the guard frame; The number of the frame segments and the number of the supporting arms are both 6; The power battery system and the propeller system are installed on the central disk, the power battery system is connected to the propeller system, and the propeller system is connected to the control handle.

2. The electric-driven paramotor power device according to claim 1, characterized in that: An umbrella rope guide frame is provided on the end of the support arm and / or the guard frame, and there are two umbrella rope guide frames, and the two umbrella rope guide frames are symmetrically arranged, and the symmetry plane is the symmetry plane of the guard frame in a vertical manner; The parachute rope guide frame is connected to the end of the support arm and / or the guard frame by any one of magnetic adsorption connection, bolt connection and clamping connection, and the connection position is adjustable.

3. The electric-driven paramotor power device according to claim 1, characterized in that: The power battery system includes a battery module, a battery management system and a contactor unit; The battery management system is connected to the battery module, the battery module is connected to the contactor, and the contactor is respectively connected to the control handle and the thruster system; The battery management system is also connected to a speaker, which is used to give voice prompts of the temperature and charge state of the battery module; The battery module adopts a lithium-ion battery and includes a plurality of battery cells connected in series.

4. The electric-driven paramotor power device according to claim 3, characterized in that: The power battery system further comprises a replaceable battery module box, which is detachably mounted on the central plate and is used to accommodate the battery module and a data acquisition hub and a temperature sensor of the battery management system; The replaceable battery module box is provided with a quick-connect plug, one end of the quick-connect plug is connected to the battery module, and the other end is connected to the contactor.

5. The electric-driven paramotor power device according to claim 1, characterized in that: The propulsion system includes a motor controller, a motor and a propeller; The motor is mounted on the central disk and is located above the power battery system. The motor controller and the propeller are mounted on the motor. The motor controller is connected to the motor, and is also connected to the power battery system and the control handle, and is used to monitor and control the working state of the motor. Facing the propeller, the propeller provides forward power for the body when rotating counterclockwise, the propeller is a two-blade straight propeller or a three-blade propeller, and the propeller is made of carbon fiber reinforced composite material; The motor is a permanent magnet synchronous motor, and the motor controller is connected to the motor to form an integrated structure.

6. The electric-driven paramotor power device according to claim 1, characterized in that: The control handle is equipped with a Hall displacement sensor and a motor speed regulation PWM signal unit; The throttle button of the control handle is connected to the Hall displacement sensor, the Hall displacement sensor is connected to the motor speed regulation PWM signal unit, and the motor speed regulation PWM signal unit is connected to the thruster system; the Hall displacement sensor is used to generate a throttle amount signal according to the pressing angle of the throttle button, and input the throttle amount signal into the motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is used to output motor speed control square waves with different duty cycles to the thruster system; The control handle is also provided with a display screen, which is respectively connected to the power battery system and the Hall displacement sensor, and is used to display parameter information of the power battery system and the thruster system; The parameter information includes the state of charge and the throttle amount.

7. The electric-driven paramotor power device according to claim 1, characterized in that: The machine body is equipped with a Hall displacement sensor and a motor speed regulation PWM signal unit; The control handle is connected to the Hall displacement sensor via a pull wire, and the pull wire is used to transmit the pressing angle of the throttle button of the control handle to the Hall displacement sensor; The Hall displacement sensor is connected to the motor speed regulation PWM signal unit, and the motor speed regulation PWM signal unit is connected to the propeller system; The central plate is connected to the machine foot and the boom, the machine foot is located below the boom, the machine foot is used to protect the propulsion system, and the boom is connected to the parachute rope and the machine body at the same time, and is used to bear the weight of the electric-driven power parachute power device and the operator during flight; The machine foot is hinged to the central plate, and the suspension arm is hinged to the power battery system, and can be folded together with the support arm.

8. An electrically driven paramotor, characterized in that: include: A parachute rope and a parachute body connected to both ends of the parachute rope respectively, and an electric-driven powered parachute power device as claimed in any one of claims 1 to 7.

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