An unmanned aerial vehicle includes a body, a first wing, a second wing, a first rotor assembly, a third rotor assembly, and a fourth rotor assembly. The body has a first accommodating cavity and a second accommodating cavity. The first wing and the second wing are disposed on two sides of the body. The first rotor assembly is mounted to the first wing, and the second rotor assembly is mounted to the second wing. The third rotor assembly includes a third motor and a third propeller connected to the third motor. The third motor is mounted in the first accommodating cavity and partially exposed to the body. The fourth rotor assembly includes a fourth motor and a fourth propeller connected to the fourth motor. The fourth motor is mounted in the second accommodating cavity and partially exposed to the body.

An unmanned aerial vehicle includes a body, a first wing, a second wing, a first rotor assembly, a third rotor assembly, and a fourth rotor assembly. The body has a first accommodating cavity and a second accommodating cavity. The first wing and the second wing are disposed on two sides of the body. The first rotor assembly is mounted to the first wing, and the second rotor assembly is mounted to the second wing. The third rotor assembly includes a third motor and a third propeller connected to the third motor. The third motor is mounted in the first accommodating cavity and partially exposed to the body. The fourth rotor assembly includes a fourth motor and a fourth propeller connected to the fourth motor. The fourth motor is mounted in the second accommodating cavity and partially exposed to the body.

Heating a battery and cooling an electric power conversion device are achieved together. This mobile body includes an electric motor, a battery, a thermoelectric conversion element, an electric power conversion device, and a controller. The electric motor is a driving source. The electric power conversion device is configured to convert electric power outputted from the battery into driving electric power for the electric motor. The electric power conversion device is disposed in direct contact or in indirect contact with the battery with the thermoelectric conversion element interposed therebetween. The controller is configured to control electric power to be supplied to the thermoelectric conversion element. The controller controls, in a case where the battery is in a predetermined low-temperature state, the electric power to be supplied to the thermoelectric conversion element to cause a surface of the thermoelectric conversion element coupled to the battery to serve as a heat dissipation surface.

Heating a battery and cooling an electric power conversion device are achieved together. This mobile body includes an electric motor, a battery, a thermoelectric conversion element, an electric power conversion device, and a controller. The electric motor is a driving source. The electric power conversion device is configured to convert electric power outputted from the battery into driving electric power for the electric motor. The electric power conversion device is disposed in direct contact or in indirect contact with the battery with the thermoelectric conversion element interposed therebetween. The controller is configured to control electric power to be supplied to the thermoelectric conversion element. The controller controls, in a case where the battery is in a predetermined low-temperature state, the electric power to be supplied to the thermoelectric conversion element to cause a surface of the thermoelectric conversion element coupled to the battery to serve as a heat dissipation surface.

Problems to be Solved

To provide an unmanned aerial vehicle capable of achieving both of equipping a pruning structure capable of pruning trees and enhancing safety.

Solution

An unmanned aerial vehicle 2 according to the present invention includes a pruning structure 23 capable of pruning a tree; a housing structure 24 capable of housing the pruning structure 23 inside; and a state control section 212 capable of controlling the state of the pruning structure 23 between a housed state in which the pruning structure 23 is housed inside the housing structure 24 and an exposed state in which the pruning structure 23 is exposed to the outside of the housing structure 24, wherein the state control section 212 can control the state of the pruning structure 23 to the housed state on landing. The state control section 212 preferable to control the state of the pruning structure 23 to the exposed state when a distance from the unmanned aerial vehicle 2 to a target tree to be pruned equal to or shorter than the predetermined distance, and to control the state of the pruning structure 23 to the housed state when a distance from the unmanned aerial vehicle 2 to the target tree longer than the predetermined distance.

An aircraft that can improve cruising speed by making the body shape of the airframe (especially, multicopter) into a shape that has less unnecessary positive lift force by the main body and less drag in the cruising posture of the airframe. An aircraft equipped with a plurality of rotary blades including a propeller and a motor, wherein the aircraft comprises a main body with an inverted airfoil shape. The main body has an attack angle that does not generate a lift force or produces a negative lift force during cruising. The main body has a positive attack angle of 12 degrees or less. Further, it is provided with a mounting unit on which a mounted object can be mounted. The mounting unit is connected to the main body via the connection unit.

The operational efficiency of a rotorcraft in cruising. The rotary wing aircraft, according to the present disclosure, has a main body and a plurality of motors provided in the main body for rotating each of the rotors, which are parallel to a reference plane. When the main body is inclined with respect to one direction of travel and flying in the direction of travel, the rotational speed of each of the plurality of motors is approximately the same.

The operational efficiency of a rotorcraft in cruising. The rotary wing aircraft, according to the present disclosure, has a main body and a plurality of motors provided in the main body for rotating each of the rotors, which are parallel to a reference plane. When the main body is inclined with respect to one direction of travel and flying in the direction of travel, the rotational speed of each of the plurality of motors is approximately the same.

A method of assembling a delivery payload assembly configured to be deployed from an aircraft and travel along a flight path to a predetermined landing destination includes attaching a tail-kit assembly to a first end of a payload, the tail-kit assembly including a rotor blade assembly including a plurality of rotor blades having a central axis of rotation, and a flight control and navigation system configured to control a collective pitch angle of each of the plurality of rotor blades of the rotor blade assembly, configured to control an axial thrust force of the rotor blade assembly, the axial thrust force being at an angle with respect to the central axis of rotation of the rotor blade assembly, and configured to navigate the delivery payload assembly along the flight path to the predetermined landing destination. The method further includes removing the tail-kit assembly from the payload after the payload is delivered to the predetermined landing destination.

A vehicle includes a first rotor system having a rotor blade having an axis of rotation, a rotatable inboard drive component, and a rotatable outboard drive component. The first rotor system further includes a flexible closed loop component associated with each of the inboard drive component and the outboard drive component. Movement of the closed loop component can selectively cause at least one of rotation of the rotor blade about the axis of rotation and movement of the axis of rotation.