Description: Field of Invention
The present Invention pertains to the human flight for short range and low altitudes using the Hover board with high efficiency ducted fans, minimum effort to manoeuvre and good stability and control. This invention resembles to a skateboard, but it allows the rider to hover in the air and travel short distances with minimum power.
Background of the Invention
The embodiment of the present invention provide an aerial hover board for short range, low altitude flight. The present invention is based on a skate board and is developed especially for compact use. It is designed is as small as it can be to promote compact use and also to carry enough equipment for the flight. The basic principle is to overcome weight on board. Mostly the flying hover boards are meant to fly in air for a short time. They are also made to propel forward or backwards by tilting. The flying format of a flying hover boards are similar to the helicopter. They can hover and they can propel forward, the same way an aerial hover board works. Hover boards are very useful in terms of search and rescue, sports, short distance travel etc. Although these don’t have high range because of the limits that comes with the propulsion system. The range of these vehicles depend on the propulsion system they are using. The hover boards are very costly. The companies who are working on building these things are spending more money in making these flying hover boards more efficient. So, generally the cost of building these flying vehicles is high. Currently many countries are thinking to introduce these vehicles in Defense sectors and to the police department. Then we get sufficient data whether these vehicles are good and safe to be used by the normal consumers. Very few companies are there who are working and building these vehicles. Some are using fuel and some are using electricity. In the patent US20150175031A1, the motor rotates an arrangement of magnets to induce eddy currents and generate magnetic lift which causes the hover board to hover in the air. The hover board can be tilted to propel it in a particular direction. The hover engines can each be coupled to a tilt mechanism which is coupled to a flexible rider platform. US20110272398A1 describes a permanent magnet thermal generator having a rotating chamber with an attached heat element in close proximity to one or more permanent magnets. The relative motion of the heat element to the magnetic flux from the magnets results in heat generation and in some cases in levitation. A digital control mechanism can be configured to detect a movement of a person or a movement of a device by the person. USD778782S1, provides details on the hover board with wheels for forward movement on the ground. The powered vehicles in which the operator is standing upon the vehicle and the vehicle is controlled by a user's feet. US9403573B1 is more particularly relates to a powered vehicle which is controlled by a user's feet but which, in contrast to self-balancing vehicles having only two wheels, embodiments of the US9403573B1 invention have an additional wheel for providing support and assisting a user in balancing the vehicle.US8225891B2 explains a mobile vehicle, such as a single-passenger coaxial two-wheel vehicle, that can turn with a short turning radius without causing pain to a rider or vehicle occupant, or allowing cargo or the like on the vehicle to shift or fall off the vehicle. JP2006131115A describes a vehicle going on two wheels with a human on board. Good braking can be achieved when braking is accomplished by supplying braking methods on a parallel two-wheeled vehicle.
The main goal of a hover board is to overcome the weight in the flight. It follows Newton’s third law. So, to hover in air, the vehicle should produce more thrust than the weight of the aircraft. Usually, the weight of the pilot is considered as 91kg and the vehicle might weigh other 50-100kg and the propulsion system is designed. The vehicle design consists of three different sections namely front, middle and rare sections .There are six electrical ducted fans on the vehicle to facilitate the pay load to lift, move and manoeuvre in the air. An aerial Hover board is a personal mobility vehicle which helps an individual to fly in the air for short distances.
Summary of Invention
This Invention uses a flat board on which the pilot stands to fly and hover. The flat board has the propulsion system and avionics system built in it. By providing electricity to the EDFs (Electric Ducted Fans). The fans rotate and propel air below or downwards and thus generating upward thrust. This is the basic model. The hover board design that we are using has ducted fans. It has a unique design.
Brief Description of Drawings
Figure 1: Aerial Hoverboard
Detailed Description of the Invention

The current invention is based on a skateboard and was developed with compactness in consideration. It is intended to be as tiny as possible in order to promote compact use while also carrying enough equipment for the flight. The primary idea will be to overcome the weight on vehicle which include the Operating Empty weight and payload .The majority of flying hover boards are designed to fly in the air for a limited period of time. They can also be tilted to propel forward or backward. A flying hover board's flying format is similar to that of a helicopter. They have the ability to hover and propel forward in the same way as an aerial hover board does. A frame with six electronic ducted rotors rotors, a pair of foot holders, and a basic hand throttle built out of modified pliers make up the an aerial Hoverboard.

The aerial hover board has three sections namely Front, middle and the end sections. The base part of the vehicle is made up of Kevlar fiber composite material.It has good strength,stiffness and high impact resistance.The propulsion system is one of the efficient systems to provide sufficient lift and maneuverability to the vehicle.The propulsion system produce the thrust required to propel the vehicle in the air.It is mounted on the front and end sections of the vehicle.

The front sub-assembly consists of the base, two small EDF and one large EDF. These EDF assemblies are placed on the front section. The middle section assembly is attached to the front section and the end section assembly is connected to the middle section of the hoverboard. The bottom section for landing take-off is assembled to the bottom of front and end sections. The complete assembly of the vehicle light in weight, compact and easy to ride in all weather conditions. The material selected for the complete assembly possess sufficient strength, fatigue resistance and high impact resistance.

There are three Electric Ducted Fans 1a which are installed on the front section of the vehicle figure1. One of them is big one which is suitable for hovering, altitude control and small EDFs similar in size are intended for the controlled flight. Ducted fans are more energy efficient compared to the propellers. The end section1c also has the same setup similar to the front section1a.This design is developed mostly for the purpose of stability in the air. The big EDF is designed to increase altitude and the other smaller EDFs are helpful for stability and control. An EDF - Electric Ducted Fan is a device in which the propeller or fan is installed in a tube or duct. Brushless motors are selected for the propulsion system. The efficiency of the fan selected for the EDF may vary from 80-85%.this ensures reduction in power losses during its operation.
A duct has an inlet, stators, motor housing and nozzle.This duct is more efficient than a shrouded propeller. The power loading, disc loading and exhaust velocity is more than the rotor aircraft.This hover board can fly in the air with a 200 lbs of pilot’s weight.The payload can be further increased to 240lbs.The total thrust produced by the propulsion system is estimated to be 771lbs of thrust is produced in the prototype. The total excess thrust available for the vehicle to hover in the air and to gain the altitude is 485lbs.In addition to that the onboard avionics system provides the thrust control based on the payload and maneuver
The middle part of the hover board has space for foot holders, battery and electronic equipment to guide and control the hover board. Foot holder(3) is mounted on the middle section of the hover board figure 3 .The foot holder(3) facilitates to hold the pilot on the vehicle. The foot holders are designed in such away that it reduces the fatigue of the pilot during the flight. It facilitates the rider a stress free ride for The Battery and avionic systems 1b are mounted on the middle section of the hover board figure1.It provides power to the fans and control system to manoeuvre the vehicle. In this design, the lithium ion batteries and the avionics board are installed on opposite sides to prevent heating. There have been reports of boards catching fire while being ridden, which are most likely the result of inadequate battery placement and insulation.
The middle section also has wings for stability and to increase the range. The wings can move up or down for stability purposes. The design and location of the wings(1d) which are attached to middle section of the vehicle are shown in the figure1.The wing structure is constructed from the light weight composite materials that provides sufficient strength during different types of maneovures. This is one of the power efficient ,safe and controlled vehicles suitable for short range, low altitude flights. The avionics part of the flying aerial hover board includes parts and extra sensors that allow greater control and greater safety when using it. If the hoverboard's inbuilt electronics, such as the flight controller, automated stabilizing mechanism, and accelerometer, fail, the manoeuvring is done via body movements. This is one of the important aspects of the design.
The end section is one of important parts of the hover board. It consists of three Electric Ducted Fans 2b as shown in Figure 2. One is a huge EDF for hovering and altitude control, while the other two are smaller EDF for controlled flight. The diameter of the large EDF is 15.45 inches and it rotates at 17400rpm.It produces the required thrust for the vehicle to move in the air. The fans rotate, propelling air downwards or rearward, providing forward propulsion.
The board features batteries that power two primary EDFs, and the pilot transports the other battery set, which is fitted in a backpack, to power the other four EDFs. The advantages of ducted fan include small diameter for the given thrust, low power motor to drive, less noise and safe compared to the other devices. The pressure larger than air pressure imposed against the fan disc area on the lower surface area of the fan blades forced forward is about equal to the additional thrust created by the Fan as a propeller. The bottom part of the vehicle is designed for smooth landing and take-off.

4 Claims and 1 Figure
, Claims: The scope of the invention is defined by the following claims:

Claim
1. An aerial hover board comprising
a) A three electric ducted fans (1a) which are used to produce the thrust are installed on the front section of the vehicle and battery with the electronic systems (1b) is mounted on the middle section of the hover board which provides power to the fans and control system to manoeuvre the vehicle.
b) The wings (1d) which are attached to middle section of the vehicle and the foot holder is mounted on the middle section of the hover board.

c) The electric ducted fans (1a) facilitates vertical take-off and landing, hover and forward motion of the vehicle

2. As specified in the claim1, the battery and electronic systems (1b) provides power to the fans and control system to manoeuvre the vehicle.

3. As mentioned in the claim1, the onboard electronic equipment (1b) controls the speed and maneuver the hover board.

4. As per the claim1, wings (1d) used to provide stability and control of the hover board in the air and the foot holder helps to hold the pilot legs.