DE202006013909U1 - Aircraft e.g. quadrocopter, has centrally fixed base unit, hoist arms detachably fixed at base unit by plug-in and screw connections, electronic components fixed at base unit, and landing frame formed from simple wires - Google Patents

Abstract

The aircraft has a centrally fixed base unit (1), and hoist arms (2) detachably attached at the base unit by plug-in and screw connections. Electronic components (4) are fixed at the base unit, and an impact protection unit fixed at the base unit. The plug-in connections are designed as form-fit and centrally detachable plug-in connections. Standard engines with gears and high power direct drives are fixed at the hoist arms. A landing frame is formed from simple wires.

Description

Technical environment

Disclosure of the invention

Technical problem

Technical solution

Short description of drawings

The Innovation relates to an aircraft, especially a quadrocopter.

Of the Innovation is based on the object, aircraft, in particular a quadrocopter, offer, which is advantageous mountable.

Operating principle Quadrocopter - Prinzipieller construction

One Quadrocopter defined by a preferably cross-shaped structure each with a drive unit including propeller at the four End up. By varying the thrust of the individual drive units is an almost unrestricted movement possible in three-dimensional space. A processor-based Electronics converts the pilot control signals for engine control and supports by sensors the position stabilization. The functional principle defined the structural implementation largely. The basis is the centrally arranged electronics and power supply in which the position sensor is integrated. The 4 motor units are crosswise point symmetrical with respect to the base.

Modular structure of the inventive quadrocopter

A essential property of the structure described here represents the modularity The elements are joined by easily detachable connections and can thereby be easily replaced in case of service or failure. Following the function were lightweight materials such as aluminum, magnesium or carbon fiber composites selected. Depending on requirements and design requirements (low weight / high Stiffness) it is through defined and compatible interfaces possible to use different material combinations.

Easy to solve, form-fitting plug-in system

The easily detachable Connections of the Quadrocopter can as form-fitting Plug system executed become. No gluing is necessary and all components are held together by positive locking. Fluctuations in material thickness (at CFRP up to + -10% have almost no negative effects with this type of connection on the rigidity of the construction. The fixation of the unit takes place only by a screw per strut connector.

Example of a modular constructed Quadrocopters according to the drawings

In the example shown ( 1 and 2 - Only central unit) forms the base of an approximately square plate (base element, base plate), for example made of carbon fiber composite material or magnesium (Part 1 ). On the base board sit the schematically illustrated electronic components (Part 4 ).

Several longitudinal and transverse spanning stirrups (Part 3 , Part 3.1 .) protect the electronics in the event of an impact. The central unit (plate and shock bar) is approximately spherically symmetric in order to ensure optimal rigidity with the lowest weight. The shock bars and their connecting elements are joined by a positive plug-in system. The temples (part 3.1 ) are in the load directions train outwards (in the direction of the boom) and shocks from above and below positively by the pins of the plug-in plate (Part 3.2 ) secured. The protection against slipping and lateral impacts ensures the cover plate (Part 3.3 ), which can be secured by a single central screw (not shown). The locking screw carries itself no load and can be dimensioned accordingly.

The cross-shaped outriggers (Part 2 ) made of, for example, CFK sandwich materials are joined by a combined plug-in and screw connection. Used plastic screws act as predetermined breaking points. The engine mounts (Part 5 ) when using brushed motors include the rotor shaft bearing, the motor gearbox and the engine mount. When using brushless direct drives (Part 6 ) These can also be attached. Due to the material-fit contact, the motor holder and arm act simultaneously as cooling elements to dispose of the engine waste heat.

One Landing frame can be constructed of spring steel wires. These Construction of the landing gear can be made quickly and inexpensively become. In addition, it absorbs hard land shocks optimally from one only very low weight. An exchange due to too hard Landings may occur immediately and without tools due to mounting in receptacles happen.

Claims (8)

Aircraft, in particular Quadrocopter, with egg nem centrally mounted base element and in particular via plug and screw detachably mounted on the base element arms. aircraft according to claim 1, wherein attached to the base element electronic components are. aircraft according to claim 1 or 2, wherein the base member at least one element as impact protection is appropriate. aircraft according to one or more of the preceding claims characterized that the connectors are form-fitting, and at the same time central releasable Plug connections executed are. aircraft according to one or more of the preceding claims characterized that the central unit approximates is constructed spherically symmetrical and thus optimal with minimum weight Has rigidity and protection for both battery and electronics offers. aircraft according to one or more of the preceding claims characterized that on the boom both standard motors with gearbox as well High performance direct attachments can be attached. aircraft according to one or more of the preceding claims characterized that the boom at the same time a impact protection for gears and / or Own engines. aircraft according to one or more of the preceding claims characterized that the landing gear is made of simple wires and tool-free can be exchanged.