EP2498887B1 - Trägerblock für einen motor einer drehflüglerdrohne - Google Patents

Trägerblock für einen motor einer drehflüglerdrohne Download PDF

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Publication number
EP2498887B1
EP2498887B1 EP10785144.6A EP10785144A EP2498887B1 EP 2498887 B1 EP2498887 B1 EP 2498887B1 EP 10785144 A EP10785144 A EP 10785144A EP 2498887 B1 EP2498887 B1 EP 2498887B1
Authority
EP
European Patent Office
Prior art keywords
motor
electric motor
drone
support part
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10785144.6A
Other languages
English (en)
French (fr)
Other versions
EP2498887A1 (de
Inventor
Guillaume Savoye
Yoni Benatar
François CALLOU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parrot SA
Original Assignee
Parrot SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Parrot SA filed Critical Parrot SA
Publication of EP2498887A1 publication Critical patent/EP2498887A1/de
Application granted granted Critical
Publication of EP2498887B1 publication Critical patent/EP2498887B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H27/00—Toy aircraft; Other flying toys
    • A63H27/12—Helicopters ; Flying tops

Definitions

  • the present invention relates to a support block for an electric motor for driving a propulsion unit of a rotary wing drone.
  • the invention finds a particularly advantageous application in the field of radio controlled toys that can be used by children, especially in indoor environments, such as a room in a house or apartment, for example.
  • the CN 201 139 953 Y , CN 201 214 021 Y , US 2004/200924 A1 or WO 2007/052246 A1 describe such flying-wing RC flying toys.
  • the rotary wing consists of four propulsion units, each driven by an electric motor.
  • the motors used because of their very high speed of rotation, the motors used, in particular the brush motors, have a limited life and must be changed frequently by the user.
  • the engine change operation is tricky since it requires the dismantling and reassembly of a large number of parts such as a protective cover in which the engine is enclosed, as well as components of the group.
  • propellant itself such as the propeller and the system for reducing the rotational speed of the engine.
  • an object of the invention is to provide a support block for an electric drive motor of a propulsion unit of a rotary wing drone of the general type described by the CN 201 139 953 Y aforementioned, that is to say comprising at least one propulsion unit, an electric drive motor of the propulsion unit and a support block for this electric motor, which would allow the user of the drone to simply and quickly change the engine without dismantling and reassembling parts other than those strictly ensuring that the engine is kept in the operating position.
  • said support block comprises: a support piece on which the electric motor and at least one component of the propulsion unit intended to be coupled to said motor are fixed; a support foot on the ground of the drone; and a connecting element extending between the support member and the support foot, the support foot and the connecting element together having a clearance space for the electric motor when the fixing position is set motor on the support piece.
  • the change of electric drive motor of the powertrain comes down to the only change of the engine itself, possibly accompanied by its electronic control circuit, without it being necessary to change also other components such as the reduction system , the propeller, etc.
  • the support block constitutes a single piece providing a dual function, namely, on the one hand, that of support for the electric motor, as just described, but also foot for the drone, which avoids to provide additional feet on the hull. This results in a simpler embodiment, with less wind and a reduced mass for the hull.
  • said connecting element comprises two branches connecting the support member to the support foot and forming a stirrup with the support foot.
  • This arrangement makes it possible to arrange on a support block, between the foot and the support member, a large access surface to the motor offering the user a better grip and easier handling of the motors to be exchanged during the operation. replacement operation.
  • the invention provides that the component of the propulsion unit fixed on the support member is constituted by a ring gear of a propellant reduction system, said ring being coupled to the electric motor via a pinion mounted on the axis of the electric drive motor.
  • the electric motor is fixed on the support member by at least one fastening means disposed outside the ring.
  • this fastening means can be made directly accessible, without the user being obstructed by the components of the propulsion unit, and therefore without having to disassemble.
  • a quadrocopter 10 constituting a drone whose rotary wing is composed of four coplanar propellant groups 100 1 , 100 2 , 100 3 , 100 4 connected to the central structure 11 of the polypropylene hull of the drone 10 by carbon tubes, such as the tube 101 4 visible on the Figure 1 .
  • a propellant group comprising a propeller 110 integral with a ring gear 111, which meshes with a pinion gear 112 driven by an electric motor 120.
  • the pinion 112 and the ring gear 111 form a system for reducing the rotational speed , generally very high, of the electric motor 120.
  • the carbon tube 101 contains electrical conductors that extend between the central structure 11 of the hull and a connector 121 disposed at the end of the tube 101, and cables (not shown in the figures) provide the electrical connection between the connector 121. and an electronic card 122 of the engine 120.
  • the card 122 can thus be supplied with direct current from a battery housed in the central structure 11 of the drone and receive motor control signals 120 established by an electronic navigation card also located in the central structure 11.
  • the electric motors used may be brush motors which have the advantage of being inexpensive.
  • the brush motor can be advantageously replaced for example by a brushless motor.
  • the propulsion unit 100 is constituted around of a single piece, namely a multifunctional support block 130 composed of three elements.
  • the first element of the support block 130 is a support member 131 proper on which are fixed the electric motor 120 and the ring gear 111 of the reduction system of the rotational speed of the engine 120.
  • the pinion 112 meshing with the ring gear 111 is directly attached to the end of the axis 123 of the motor 120.
  • the support member 131 thus ensures alone the assembly function of the various components of the propulsion unit, this in a very compact manner and with perfect positioning.
  • the invention further assigns to the support block 130 another function which consists in providing a ground support foot for the drone 10 on landing or when placed on the ground. It is for this purpose that the support block 130 comprises a second element formed by a foot 132 connected to the support member 131 by a third connecting element 133.
  • the ground support foot 132 and the connecting element 133 have a clearance space 134 forming a passage for the motor 120 when it must be placed in the fixing position on the support member 131 during its assembly. or when it needs to be dismantled. It is understood that the clearance space 134 allows direct access of the engine to its fixing position, without disassembly of any other part such as a hood or components of the propulsion unit. In the example shown on the Figure 3 , the introduction of the motor 120 into the clearance space 134 is performed axially, parallel to the direction defined by the arrow F.
  • the connecting element 133 in the form of two branches 133a, 133b constituting a stirrup with the foot 132 support.
  • the user of the drone then has a large surface of lateral access to the motor 120 allowing him to hold it well in hand and to guide it accurately during its replacement.
  • the attachment of the motor 120 to the support member 131 is itself greatly simplified by means of two screws 124a, 124b passing through the support member 131 outside the ring 111, as indicated by FIG. Figure 4 .
  • This position of the screws 124a, 124b of attachment is ideal because their access is not impeded by the components of the propulsion unit, the propeller 110 can always be placed in a position that does not hide the screws.

Landscapes

  • Toys (AREA)

Claims (4)

  1. Drehflügeldrohne (10), die mindestens eine Antriebseinheit (100), einen Elektromotor (120) zum Antreiben der Antriebseinheit und einen Trägerblock (130) für diesen Elektromotor umfasst,
    dadurch gekennzeichnet, dass der Trägerblock Folgendes umfasst:
    - ein Trägerteil (131), auf dem der Elektromotor und mindestens eine Komponente (111) der Antriebseinheit, die mit dem Motor gekoppelt werden soll, befestigt sind;
    - einen Fuß (132) zur Anlage der Drohne am Boden; und
    - ein Verbindungselement (133), das sich zwischen dem Trägerteil und dem Anlagefuß erstreckt,
    wobei der Anlagefuß und das Verbindungselement zusammen einen Freiraum (134) für den Elektromotor bei der Positionierung des Motors in der Befestigungsposition auf dem Trägerteil bilden.
  2. Drohne nach Anspruch 1, wobei das Verbindungselement zwei Schenkel (133a, 133b) umfasst, die das Trägerteil mit dem Fuß verbinden und mit dem Anlagefuß einen Bügel bilden.
  3. Drohne nach Anspruch 1, wobei die Komponente der am Trägerteil befestigten Antriebseinheit durch einen Kranz (111) eines Übersetzungssystems der Antriebseinheit gebildet wird, wobei der Kranz mittels eines auf der Achse (123) des Elektroantriebsmotors angebrachten Zahnrads (112) mit dem Elektromotor gekoppelt ist.
  4. Drohne nach Anspruch 3, wobei der Elektromotor durch mindestens ein Befestigungsmittel (124a, 124b), das außerhalb des Kranzes angeordnet ist, am Trägerteil befestigt ist.
EP10785144.6A 2009-11-13 2010-10-20 Trägerblock für einen motor einer drehflüglerdrohne Not-in-force EP2498887B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0958013A FR2952549B1 (fr) 2009-11-13 2009-11-13 Bloc-support pour un moteur de drone a voilure tournante
PCT/FR2010/052230 WO2011058257A1 (fr) 2009-11-13 2010-10-20 Bloc-support pour un moteur de drone a voilure tournante

Publications (2)

Publication Number Publication Date
EP2498887A1 EP2498887A1 (de) 2012-09-19
EP2498887B1 true EP2498887B1 (de) 2014-02-19

Family

ID=42199995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10785144.6A Not-in-force EP2498887B1 (de) 2009-11-13 2010-10-20 Trägerblock für einen motor einer drehflüglerdrohne

Country Status (6)

Country Link
US (1) US20120241555A1 (de)
EP (1) EP2498887B1 (de)
JP (1) JP2013510614A (de)
CN (1) CN102844085B (de)
FR (1) FR2952549B1 (de)
WO (1) WO2011058257A1 (de)

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FR3012968B1 (fr) 2013-11-13 2016-01-08 Parrot Drone a voilure tournante avec helices a entrainement direct et montage rapide
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Also Published As

Publication number Publication date
CN102844085B (zh) 2015-01-21
JP2013510614A (ja) 2013-03-28
FR2952549B1 (fr) 2011-11-25
FR2952549A1 (fr) 2011-05-20
WO2011058257A1 (fr) 2011-05-19
US20120241555A1 (en) 2012-09-27
EP2498887A1 (de) 2012-09-19
CN102844085A (zh) 2012-12-26

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