CN211253047U

CN211253047U - Power umbrella based on electric multi-propeller power device

Info

Publication number: CN211253047U
Application number: CN201922295470.6U
Authority: CN
Inventors: 高洪江; 杜明洹
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-14
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a power umbrella based on electronic many oars power device, power umbrella include the organism and install power battery system, propulsion system and the brake valve lever on the organism with electronic many oars power device. The propulsion system comprises a motor controller, a driving motor and a propeller which are connected in sequence; the number of the motor controllers, the number of the driving motors and the number of the propellers are even and are in one-to-one correspondence; the propeller rotates under the control of the motor controller and provides power for the power umbrella; half of the propellers rotate clockwise, the other half of the propellers rotate anticlockwise, and blade profiles of the propellers rotating clockwise are opposite to blade profiles of the propellers rotating anticlockwise. The utility model solves the problems of the prior internal combustion engine power umbrella, such as high noise, large vibration and pollution emission, by using the electric driving technology of the electric multi-propeller power device for the power umbrella; meanwhile, the reverse resistance brought by a single-paddle power device is eliminated.

Description

Power umbrella based on electric multi-propeller power device

Technical Field

The utility model relates to a power umbrella technical field, concretely relates to power umbrella based on electronic many oars power device.

Background

The power umbrella is used as an aviation sport equipment, has the characteristics of easy operation and high safety, and is an aviation sport equipment widely applied; meanwhile, the power parachute can be used as a flight platform for aerial photography, aerial survey, advertising, emergency survey and the like, and has certain industrial application value. For a long time, power umbrellas have used internal combustion engines as the driving propellers as the power plant. The internal combustion engine has the problems of large vibration, large noise, large emission pollution and the like, and seriously influences the entertainment and the comfort of the movement of the power umbrella.

With the development of secondary battery technology, power umbrellas have emerged that use electric power as a source of power. The electric power umbrella uses the secondary battery to drive the motor, drives the propeller to generate thrust, can solve the partial problem that the internal combustion engine is used as the power device of the power umbrella, but still has the problems of low safety and reliability and being not beneficial to control.

Meanwhile, no matter the power umbrella is an internal combustion engine or an electrically driven single-propeller power umbrella, reverse moment caused by driving a propeller exists, the problem is solved by bias installation of a power device and special flight operation training, and the effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a power umbrella based on electronic many oars power device, can solve at least that the vibration of current power umbrella is big, the noise is big, the pollution is serious and the reverse moment that single oar electric power umbrella exists is big, be difficult for controlling the scheduling problem.

In order to achieve the above object, the present invention provides the following technical solutions: a power umbrella based on an electric multi-paddle power device comprises:

the device comprises a machine body, and a propulsion system, a power battery system and a control handle which are arranged on the machine body;

the propulsion system is used for providing power for the machine body; the power battery system is connected with the propulsion system and is used for transmitting electric power to the propulsion system; the control handle is connected with the propulsion system and used for adjusting the power of the propulsion system;

the propulsion system comprises a motor controller, a driving motor and a propeller which are connected in sequence; the motor controllers, the driving motors and the propellers are all in even number and are in one-to-one correspondence; the propeller is used for realizing rotation under the control of the motor controller and providing power for the power umbrella; half of the propellers rotate clockwise, the other half of the propellers rotate anticlockwise, and blade airfoils of the propellers rotating clockwise are opposite to blade airfoils of the propellers rotating anticlockwise.

Based on the above, the clockwise rotating driving motor and the counterclockwise rotating driving motor are alternately and circumferentially installed on the machine body according to the rotation direction, and the distance between the center point of the rotor of each driving motor and the center point of the machine body is equal.

Based on the above, the power battery system comprises a battery management unit, a battery module and a contactor, wherein the battery management unit is connected with the battery module, the battery module is connected with the contactor, and the contactor is connected with the motor controller;

preferably, the power battery system comprises two battery modules, two battery management units and two contactors, wherein the battery modules, the battery management units and the contactors are electrically connected in a one-to-one correspondence mode, and the contactors are connected to the motor controller.

On the basis, a switch button is arranged on the control handle, connected with the contactor and used for controlling the on-off of the contactor so as to realize the power output of the battery module.

Based on the above, a Hall angle sensor and a motor speed regulation PWM signal unit are installed in the control handle; the Hall angle sensor is used for generating an accelerator amount signal according to a handle pressing angle and inputting the accelerator amount signal into the motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is used for being electrically connected with a motor controller of the propulsion system and outputting motor speed control square waves with different duty ratios to the motor controller.

Based on the above, a mechanical steel cable is installed in the control handle, and a hall angle sensor and a motor speed regulation PWM signal unit are arranged on the machine body; the pressing angle of the control handle is transmitted to a Hall angle sensor through the mechanical steel cable, the Hall angle sensor generates an accelerator amount signal, and the accelerator amount signal is input into a motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is electrically connected with a motor controller of the propulsion system and outputs motor speed control square waves with different duty ratios to the motor controller.

Based on the above, be provided with the display screen on the brake valve lever, the display screen passes through bus connection the battery management unit for show the state of charge and the throttle volume signal of battery module.

Based on the above, the number of the driving motors is four or six, wherein one half of the driving motors rotate clockwise, and the other half of the driving motors rotate anticlockwise.

Based on the above, the battery module is provided with a temperature sensor, and the battery management unit is connected with the corresponding battery module and the temperature sensor through a data acquisition concentrator; the battery management unit is connected with a loudspeaker and is used for carrying out sound prompt on the temperature and the charge state of the battery module.

Based on the above, the driving motor is a three-phase permanent magnet synchronous motor; the motor controller is electrically connected with the corresponding driving motor and is integrated with the driving motor.

Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:

the utility model discloses can provide a power umbrella based on electronic many oars power device adopts the secondary cell module, like lithium ion battery as the electric power source, carries out power transform back driving motor through machine controller, drives the screw and produces thrust, has effectively solved traditional internal combustion type power umbrella's vibration, noise and emission pollution problem.

The safety level of the electric power umbrella is improved by arranging the plurality of battery modules, the parallel connection of the battery modules for outputting electric power is realized through the contactor, and the battery modules can be timely closed after problems such as discharge faults and abnormal rise of battery temperature occur in one of the battery modules, so that the hidden danger is prevented from further expanding; meanwhile, after one battery module is closed, the characteristic that the discharge power of the secondary battery module is large is utilized, and the other battery module is used for continuously providing power for the motor, so that the flight safety is guaranteed.

And thirdly, the multi-propeller contra-rotating propeller layout is adopted, so that the reverse torque of the motor can be eliminated, and the controllability of the power umbrella is improved. The power umbrella provided with the electric multi-propeller power device adopts the positive and negative rotation of a motor and the corresponding installation of positive and negative propellers to generate forward thrust; meanwhile, the configuration can also offset the reverse torque of each motor, eliminate the reverse torque of the driving propeller and greatly improve the controllability of the power umbrella.

Drawings

FIG. 1 is a schematic diagram of a double-battery module four-paddle power device for a power umbrella in the embodiment of the present invention;

FIG. 2 is a schematic diagram of a single cell module four-paddle power device for a power umbrella in the embodiment of the present invention;

FIG. 3 is a schematic diagram of a dual-battery module six-paddle power plant for a power umbrella in an embodiment of the present invention;

FIG. 4 is a schematic diagram of a single cell module six-paddle power device for a power umbrella in the embodiment of the present invention;

FIG. 5 is a first schematic structural view of a control handle according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a control handle in an embodiment of the present invention;

FIG. 7 is a front view of an electric multi-paddle power device for a power umbrella in an embodiment of the present invention;

fig. 8 is a rear view of the power umbrella in the embodiment of the present invention.

In the figure: 1 is a machine body; 2 is a charging port; 3 is a data acquisition concentrator; 4 is a battery module; 5 is a temperature sensor; 6 is a contactor; 7 is a Hall current sensor;

8 is a direct current bus; 9 is a control handle; 10 is a switch button; 11 is a display; 12 is a battery management unit; 13 is a loudspeaker; 14 is a CAN bus;

15 to 20 are all motor controllers; 21 is a data acquisition concentrator; 22 is a battery module; 23 is a temperature sensor; 24 is a Hall current sensor; 25 is a contactor; 26 is a battery management unit;

27 is an outer ring; 28 is an inner ring; 29 is a connecting rod; 30 is a driving motor; 31 is a mounting ring; 32 and 33 are both mounting plates; 34 is a pull rope displacement sensor; 35 is a mounting frame; 36 is a suspension arm; 37 is a handle main body; 38 is a pressing handle; and 39 is a mounting box body.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "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 drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.

The utility model discloses well power umbrella includes organism, power battery system, advancing system and brake valve lever, and power battery system includes secondary battery module, battery management unit, contactor unit for provide electric power to advancing system.

The number of the driving motors, the propellers and the motor controllers of the propulsion system is even, preferably the even number is an even number larger than 2, and one driving motor is electrically connected with one motor controller and drives one propeller; in the even number of the driving motors, one half of the driving motors rotate clockwise, and the other half of the driving motors rotate anticlockwise; the utility model discloses well screw quantity also is the even number, is the thrust screw, and the wing section of installing the screw on clockwise rotation's driving motor is opposite with the wing section of installing the screw on counter-clockwise rotation's driving motor.

The power battery system is provided with a replaceable battery module, and the battery module is connected with the battery management unit and is electrically connected with the contactor unit to output electric power.

The control handle is electrically connected with an even number of motor controllers of the propulsion system, and the motor controllers adjust the rotating speed of the driving motor according to the action condition of the control handle.

The control handle is provided with a switch button and is electrically connected with the power battery system, and the power output of any group of replaceable battery modules is disconnected by controlling the contactor unit. The control handle is connected with the battery management unit through a bus, and a display screen is further mounted on the control handle and used for displaying the charge state and the throttle proportion of the battery module.

When the control handle is designed integrally, a Hall angle sensor and a motor speed regulation PWM signal unit are arranged in the control handle; the Hall angle sensor generates an accelerator amount signal according to the handle pressing angle and inputs the accelerator amount signal into a motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is electrically connected with a motor controller of the propulsion system.

The other type of control handle is that a mechanical steel cable is arranged in the control handle, and a Hall angle sensor and a motor speed regulation PWM signal unit are arranged on the machine body; the pressing angle of the control handle is mechanically transmitted to a Hall angle sensor through a steel cable, and an accelerator amount signal is generated by the Hall angle sensor and is input into a motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is electrically connected with a motor controller of the propulsion system.

The battery management unit carries out voice prompt on the temperature and the charge state of the battery module through the loudspeaker.

Four specific examples are given below, depending on the number of propellers and the number of battery modules.

Example one

In the embodiment, four driving motors are arranged in a vertical plane of the machine body, and the axes of the driving motors are horizontal; the four driving motors are circumferentially and uniformly distributed in 360 degrees. The driving motors are connected with the motor controllers in a one-to-one correspondence mode, and the motor controllers are installed on the machine body and are electrically connected with the driving motors.

Another type of motor controller is structurally integrated with a driving motor, for example, a driving motor of a good X8 model can be selected; the motor controller is arranged at the rear part of the driving motor and is of an integrated structure. The driving motors are connected with the motor controllers in a one-to-one correspondence mode, and the motor controllers are electrically connected with the driving motors.

Specifically, as shown in fig. 1, the switch button 10 on the control handle 9 is used to switch on the contactor 6 and the contactor 25 in the power battery system, and the battery module 4 and the battery module 22 simultaneously output direct current to the direct current bus 8; the control handle 9 is pressed, a Hall angle sensor on the control handle 9 converts the pressing input quantity of the control handle 9 into 0-5V voltage, the voltage is input into a motor speed regulation PWM signal generator positioned in the control handle 9, PWM outputs motor speed control square waves with different duty ratios to the motor controllers 15-18, the motor controllers output three-phase alternating current to the motors M1-M4, and the motors drive the propellers to generate thrust.

In order to eliminate reverse torque caused by a single-propeller driving mode, the number of the driving motors is even, the rotating speeds are the same, and the driving motors are uniformly distributed along the circumferential direction of the machine body; two circumferentially adjacent motors are opposite in rotation direction, and the installed propellers are opposite in aerodynamic shape, namely, opposite in wing shape.

In different phases of flight, the pilot can adjust the thrust of the propulsion system by pressing the control handle 9, ensuring different postures. The control handle 9 is provided with a display 11 which is connected with a data bus of the battery management unit and displays the voltage, the charge quantity, the highest temperature of the battery and the lowest temperature of the battery of the replaceable battery module in real time.

Along with the increase of flight time, battery power continuously descends, and when any battery module electric charge is less than 30%, battery management unit output signal gives the speaker, through being located the speaker 13 of fuselage, carries out low-power voice prompt to the pilot, and the suggestion cycle is 60 s. After low-power alarming, the pilot needs to find the parachute landing condition as soon as possible and land as soon as possible to ensure the flight safety.

In the flight process, the highest temperature and the lowest temperature of a certain replaceable battery module exceed threshold values, or discharge current is abnormal, and the battery management unit performs voice alarm through a loudspeaker; and the pilot cuts off the standard-exceeding battery module through the combined switch positioned on the control handle.

The battery module 4 and the battery module 22 are formed by connecting 6 20Ah ternary lithium battery units with high-rate discharge capacity in series, and the temperature sensors 5 and 23 are used for monitoring the temperatures of the two battery units respectively; after one group of battery modules fails, the other group can continue to ensure safe flight.

Example two

As shown in fig. 2, the present embodiment is different from the first embodiment in that only one battery module 4 and one battery management unit 12 are provided, and correspondingly, only one temperature sensor 5, one contactor 6 and one hall current sensor 7 are provided. A power umbrella based on a single battery module electric four-paddle power device comprises a machine body, a power battery system, a propulsion system and a control handle.

The power battery system consists of a secondary lithium ion battery module, a battery management unit and a contactor unit and provides electric power for the propulsion system.

The propulsion system consists of four motors, four propellers and four motor controllers; each motor is electrically connected with one motor controller and drives one propeller; two of the four motors rotate clockwise and the other two rotate counterclockwise, for example, in fig. 2, the driving motors M1 and M3 rotate clockwise, and M2 and M4 rotate counterclockwise; the four propellers are thrust propellers, and the wing profiles of the two propellers arranged on the clockwise rotating motor are opposite to those of the other two propellers.

The control handle 9 is electrically connected to four motor controllers 15 to 18 of the propulsion system for adjusting the rotational speed of the motors. The replaceable battery module 4 is connected to the battery management unit 12 to form a battery pack, and outputs electric power to the four motor controllers and the four motors by being electrically connected to the contactor 6.

The battery management unit is mounted on the body.

The control handle 9 is provided with a switch button 10 which is electrically connected with the battery pack, and the power output of the battery module 4 is disconnected through the control contactor 6. The control handle 9 is provided with a display screen 11 for displaying the charge state of the battery pack and the throttle quantity signal.

The structure of the handle has two forms, the first handle is internally provided with a Hall angle sensor and a motor speed regulation PWM signal unit; the Hall angle sensor generates an accelerator amount signal according to the handle pressing angle and inputs the accelerator amount signal into a motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is electrically connected with the propulsion system.

A mechanical steel cable is arranged in the control handle, and a Hall angle sensor and a motor speed regulation PWM signal unit are arranged on the machine body; the pressing angle of the control handle is mechanically transmitted to a Hall angle sensor through a steel cable, and the Hall angle sensor generates an accelerator amount signal which is input into a motor speed regulation PWM signal unit arranged on the machine body; the motor speed regulation PWM signal unit is electrically connected with the propeller system.

The battery management unit 12 in the power battery system provides an audio indication of the temperature and the state of charge of the battery module 4 through the speaker 13. The number of the motors is four, the motors are arranged in a vertical plane of the machine body, and the axes of the motors are horizontal; the distance between the central point of the motor rotor and the central point of the machine body is equal; the four motors are uniformly arranged in the circumferential direction at 360 degrees.

The motors are connected with the motor controllers in a one-to-one correspondence mode, and the motor controllers are installed on the machine body.

Specifically, a switch button 10 on a control handle 9 is used for switching on a contactor 6 of the power battery system, and the battery module 4 outputs direct current to a direct current bus 8; the control handle 9 is pressed, a Hall angle sensor on the control handle 9 converts the pressing input quantity of the control handle 9 into 0-5V voltage, the voltage is input into a motor speed regulation PWM signal generator positioned in the control handle 9, PWM outputs motor speed control square waves with different duty ratios to a motor controller, the motor controller outputs three-phase alternating current to a motor, the rotating speed of the motor is adjusted, and a propeller is driven to generate thrust.

In order to eliminate reverse torque caused by a single-propeller driving mode, the four motors have the same rotating speed and are uniformly distributed along the circumferential direction of the machine body; the two circumferentially adjacent motors have opposite rotation directions and the installed propellers have opposite pneumatic shapes.

As shown in fig. 5 and 6, the control handle 9 includes a handle main body 37 and a pressing handle 38, the pressing handle 38 is operated by pressing the pressing handle 38 on the control handle 9, and the hall angle sensor converts the pressing input amount of the pressing handle 38 into a voltage signal; the positions of the display screen 11 and the switch knob 10 on the handle main body 37 are shown in the figure.

Fig. 7 is a front view of a body of an electric multi-paddle power device for a power umbrella in two embodiments, wherein the body in fig. 7 comprises an outer ring 27 and an inner ring 28, the relative positions of the outer ring 27 and the inner ring 28 are coaxially arranged and are not concentric, four connecting rods 29 are arranged between the outer ring 27 and the inner ring 28, and the connecting rods 29 are provided with radians so as to connect the outer ring 27 and the inner ring 28; the four connecting rods 29 are respectively provided with driving motors 30, the positions of the four connecting rods are set to enable the four driving motors to be uniformly distributed in the circumferential direction of 360 degrees, and each driving motor is provided with a corresponding propeller (not shown in the figure). A mounting plate 32 is arranged on the inner ring 28, and motor controllers for four drive motors, one motor controller 15 being indicated in fig. 7, are arranged on the mounting plate 32.

A mounting ring 31 is provided outside the inner ring 28, the mounting ring 31 is provided coaxially and concentrically with the inner ring 28 and the diameter of the mounting ring 31 is larger than that of the inner ring 28, and in other embodiments, the positions of the mounting ring 31 and the inner ring 28 may be appropriately adjusted, for example, not concentrically but coaxially. A protective screen (not shown in the figure) is arranged between the mounting ring 31 and the outer ring 27 to prevent the propeller from hurting people and prevent clothes and sundries from being sucked into the propeller.

As shown in fig. 8, which is a rear view of the body of the electric multi-paddle power device for the power umbrella in the two embodiments, it can be seen from fig. 8 that, as seen from the back of the body, the inner ring 28 is provided with a mounting plate 33, and the mounting plate 33 is provided with a speaker 13 and a pull rope displacement sensor 34 connected with a pull rope. The lower part of the inner ring 28 is arranged on the mounting frame 35, the mounting frame 35 is provided with a mounting box 39, a battery module, a data acquisition concentrator, a battery management unit and related circuits are arranged in the mounting box 39, two sides of the mounting box 39 are respectively provided with a power umbrella hanging arm 36, and the two hanging arms can rotate around a fixed shaft on two sides of the mounting box 39.

EXAMPLE III

The present embodiment is different from the first embodiment in that six propellers are provided, and six driving motors M1 to M6 and six motor controllers 15 to 20 are provided on the machine body 1, as shown in fig. 3, three of the six motors in fig. 3 rotate clockwise, and the other three rotate counterclockwise, for example, M1, M3, and M5 rotate clockwise in fig. 3, and M2, M4, and M6 rotate counterclockwise.

Example four

The present embodiment is different from the second embodiment in that six propellers are provided, six driving motors M1 to M6 and six motor controllers 15 to 20 are provided on the machine body 1, as shown in fig. 3, three of the six motors in fig. 3 rotate clockwise, and the other three rotate counterclockwise, for example, M1, M3 and M5 rotate clockwise in fig. 3, and M2, M4 and M6 rotate counterclockwise.

For the above embodiment, the pilot can adjust the thrust of the propulsion system by pressing the control handle at different stages of flight to ensure different attitudes. The control handle is provided with a display which is connected with the battery pack data bus and displays the voltage, the charge quantity, the highest temperature of the battery and the lowest temperature of the battery module in real time.

Along with the increase of the flight time, the electric quantity in the battery pack continuously drops, when the electric quantity of charge of any battery unit of the battery pack is lower than 30%, the battery management unit outputs a signal to the loudspeaker, low-electric-quantity voice prompt is carried out on a pilot through the loudspeaker located on the airplane body, and the prompt period is 60 s. After low-power alarming, the pilot needs to find the parachute landing condition as soon as possible and land as soon as possible to ensure the flight safety.

In the flight process, the highest temperature and the lowest temperature of a certain battery unit exceed threshold values, a ternary lithium battery module is taken as an example, the normal working range of the battery is minus 10 ℃ to minus 55 ℃, and the battery management unit carries out voice alarm through a loudspeaker; and the pilot cuts off the power output of the battery module through the combined switch positioned on the control handle.

The battery module is formed by connecting 6 80Ah ternary lithium battery units with high discharge rate in series, and the temperature sensor monitors the temperature of each battery unit. The battery module direct current output bus is provided with a Hall sensor, detects output current and outputs a measured value to the battery management unit for estimating available remaining working time.

The replaceable battery module is of a quick reloading structure, 6 single batteries of 80Ah are connected in series, and the replaceable battery module and a data acquisition concentrator and a temperature sensor of the battery management unit are installed in the replaceable battery module together. The replaceable battery module is electrically connected with the battery management unit arranged on the machine body through the connector.

The replaceable battery module shell is of an aluminum alloy structure, and the protection grade is IP 67;

the motor is a three-phase permanent magnet synchronous motor with maximum continuous power of 2800w, and the speed is 180 RPM/v.

The controller is a three-phase permanent magnet synchronous motor controller with the maximum current of 80A, the input voltage is 22V, and the weight is 180 g.

The propeller is a 22-inch diameter double-blade propeller.

The machine body of the power umbrella of the utility model comprises a protective frame, a protective net, a spoke plate, a central plate, an umbrella head suspension arm, a seat bag and a base bracket; the machine body is preferably of a carbon fiber reinforced composite material structure, and a protective net is arranged between the machine body protective frame and the inner frame to prevent other objects from flying in the flying process.

Further, the battery module is for integrating the grafting structure: the data acquisition concentrator and the temperature sensor of the battery management unit are jointly installed in the replaceable battery module and are electrically connected with the contactor unit through the replaceable battery module interface.

Other embodiments of the present technology will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the technology following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the technology pertains and as may be applied to the essential features hereinbefore set forth. The specification and examples are to be considered as exemplary only, and the technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the present application.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is only limited by the content of the appended representative protection scope.

Claims

1. The utility model provides a power umbrella based on electronic many oars power device which characterized in that includes:

2. The umbrella of claim 1, wherein the driving motors rotating clockwise and the driving motors rotating counterclockwise are installed on the body in a circumferential direction alternately according to the rotation direction, and the center point of the rotor of each driving motor is equidistant from the center point of the body.

3. The umbrella of claim 1 or 2, wherein:

the power battery system comprises a battery management unit, a battery module and a contactor, wherein the battery management unit is connected with the battery module, the battery module is connected with the contactor, and the contactor is connected with the motor controller;

the power battery system comprises two battery modules, two battery management units and two contactors, wherein the battery modules are electrically connected with the battery management units in a one-to-one correspondence mode, and the contactors are connected to the motor controller.

4. The power umbrella based on the electric multi-paddle power device as claimed in claim 3, wherein a switch button is arranged on the control handle, and the switch button is connected with the contactor and used for controlling the on-off of the contactor so as to realize the power output of the battery module.

5. The power umbrella based on the electric multi-paddle power device as claimed in claim 1, wherein a Hall angle sensor and a motor speed regulation PWM signal unit are installed in the control handle; the Hall angle sensor is used for generating an accelerator amount signal according to a handle pressing angle and inputting the accelerator amount signal into the motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is used for being electrically connected with a motor controller of the propulsion system and outputting motor speed control square waves with different duty ratios to the motor controller.

6. The power umbrella based on the electric multi-paddle power device as claimed in claim 1, wherein a mechanical steel cable is installed in the control handle, and a Hall angle sensor and a motor speed regulation PWM signal unit are arranged on the machine body; the pressing angle of the control handle is transmitted to a Hall angle sensor through the mechanical steel cable, the Hall angle sensor generates an accelerator amount signal, and the accelerator amount signal is input into a motor speed regulation PWM signal unit; the motor speed regulation PWM signal unit is electrically connected with a motor controller of the propulsion system and outputs motor speed control square waves with different duty ratios to the motor controller.

7. The power umbrella based on the electric multi-paddle power device as claimed in claim 3, wherein a display screen is arranged on the control handle, and the display screen is connected with the battery management unit through a bus and used for displaying the state of charge and the throttle amount signal of the battery module.

8. The umbrella of claim 1, wherein the number of the driving motors is four or six, and half of the driving motors rotate clockwise and the other half of the driving motors rotate counterclockwise.

9. The power umbrella based on the electric multi-paddle power device as claimed in claim 3, wherein the battery modules are provided with temperature sensors, and the battery management unit is connected with the corresponding battery modules and the temperature sensors through a data acquisition hub; the battery management unit is connected with a loudspeaker and is used for carrying out sound prompt on the temperature and the charge state of the battery module.

10. The power umbrella based on an electric multi-paddle power device as claimed in claim 1, wherein the driving motor is a three-phase permanent magnet synchronous motor; the motor controller is electrically connected with the corresponding driving motor and is integrated with the driving motor.