EP2059994A1 - Mecanisme de commande electromotorise - Google Patents

Mecanisme de commande electromotorise

Info

Publication number
EP2059994A1
EP2059994A1 EP06791874A EP06791874A EP2059994A1 EP 2059994 A1 EP2059994 A1 EP 2059994A1 EP 06791874 A EP06791874 A EP 06791874A EP 06791874 A EP06791874 A EP 06791874A EP 2059994 A1 EP2059994 A1 EP 2059994A1
Authority
EP
European Patent Office
Prior art keywords
drive
actuator
drive train
output member
housing
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.)
Withdrawn
Application number
EP06791874A
Other languages
German (de)
English (en)
Inventor
Dieter Palm
Bernd Buchholz
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.)
Elodrive GmbH
Original Assignee
Elodrive GmbH
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 Elodrive GmbH filed Critical Elodrive GmbH
Publication of EP2059994A1 publication Critical patent/EP2059994A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes

Definitions

  • the invention relates to an electromotive actuator, preferably for to be pivoted actuators, such.
  • Flaps, valves and the like with a housing consisting of at least two shell-shaped housing parts in a flat construction, and in which at least one housing wall is equipped with electrical components in which in the housing an electric motor and a motor speed reducing, equipped with a driven member drive train is installed , Which has a plurality of gear stages, a manual adjusting shaft for adjusting the output member and / or the actuator coupled thereto, wherein one of the gear stages is equipped with a brake element such that at least the leading of this gear stage to the output member of the drive train is locked against reverse.
  • the electromotive actuators in question are used for adjusting mechanical actuators in a wide variety of designs, but flaps in the heating, ventilation and air conditioning technology are preferably driven in a controlled manner.
  • the operating speeds of the drive motors said
  • Actuators are relatively high, the speeds of the actuators to be driven or the speeds of the output members are relatively low, so that a plurality of speed reducing gear stages are necessary.
  • the individual gear stages usually consist of two gears with an extremely large ratio of the numbers of teeth.
  • the actuators are provided with an energy storage device that can be put into operation independently of electrical energy, in order, for example, to move the actuator connected to the positioning drive into a specific position in the event of a power failure.
  • the drives must be equipped with a manual adjustment, so that the output member and / or the actuator coupled thereto can be moved in at least one predetermined end position, which is preferably to be approached with the switched-electric motor.
  • a known actuator is the manual adjustment with a brake spring operatively connected, which is inserted into a socket. While during operation of the actuator by means of the electric motor, the brake spring is set in rotation, there is no friction between the brake spring and the socket.
  • Brake spring is a control part consisting of an inner control part and an outer control part used, which causes after the switching off of the electric motor, the brake spring is expanded and thus effectively prevented by the braking torque occurring a return of the actuator or the entire drive train.
  • the actuator is forcibly and forcibly manipulated, for example, by means of a tool. This can also damage not only the actuator, but also damage the drive parts of the actuator.
  • a particular disadvantage, however, is that the basic setting of the actuator can be changed, so that the function is no longer given.
  • the electromotive actuator according to the invention is designed so that in normal operation, an adjustment of the actuator is only possible when the electric motor is switched on.
  • the direction of rotation of the electric motor is reversible, so that the adjustment of the actuator takes place in both directions by means of the electric motor.
  • the actuator remains in the respective position. Even if acting on the actuator forces, this remains in the respective position, since the brake element is designed so that an adjustment is not possible.
  • the energy storage is activated or relaxed, so that the actuator is moved to a predetermined position.
  • the combination of the energy accumulator with the brake element is provided in the adjusting drive.
  • the brake element is not in operative connection with the manual adjusting shaft.
  • the brake element cooperates with one of the gear stages of the drive train. In the output range of this drive train, however, the torques to be transmitted are greatest. It must therefore be intercepted high forces.
  • the brake element is designed as an expandable, several windings
  • Brake spring is formed and is operatively connected to a lying between the manual adjusting and the output member of the drive train gear stage. In the direction of the output member of the drive train, the torque increases in each gear stage. Since the spring forming the brake element is now mounted in the region between the manual adjusting shaft and the output member, it can bring about a reliable locking of the actuator or of the output member. It is further provided that the brake spring is coupled to the associated gear stage. As a result, the brake spring with the electric motor and rotating drive parts according to the speed of the gear stage - A -
  • the brake spring associated with a non-rotatable sleeve preferably inserted therein.
  • the brake spring is activated after switching off the electric motor, it is provided that it surrounds a control part such that after switching off the electric motor, the brake spring is expandable.
  • a holding force is generated, so that between the brake spring and the bush, a frictional connection is created, which causes the actuator remains in the respective position.
  • the control part consists of a control inner part and a control outer part which surrounds this in a form-fitting manner, and in which the brake spring engages around the outer control part.
  • the control inner part and the control outer part cooperate in such a way that after switching off the electric motor, the brake spring widened and can contract freely again when switching on.
  • the brake spring corresponds to the diameter of the gear with the larger diameter of a gear stage.
  • the diameter of the brake spring compared to the previously known embodiments is significantly increased, so that the achieved braking torque is correspondingly high.
  • Actuator or the output member of the drive train or the adjustment of the actuator or the output member of the drive train is determined so that, for example, a specific position of the actuator is reproducible. This is usually done by potentiometer. Since the actuators in question are constructed in an extremely compact design, it is provided that the output member of the drive train is associated with a flat-type potentiometer in functional terms. Such a potentiometer is in a preferred embodiment, a film potentiometer or a magnetic pot. As a result, the paths or the angles can be made as actual value detection. Since the output member of the drive train is driven in rotation, in a preferred embodiment, a rooted tative potentiometer is used. As already stated, electrical components are installed on a housing wall. Preferably cable glands, function switches, adjusting devices for auxiliary switches and potentiometers come into question.
  • the electrical components are associated with a front-side housing.
  • the electrical components are now arranged close to each other in the front wall of the housing wall. As a result, the total height is not increased. This is particularly advantageous because the actuators in question are installed in ventilation ducts and the like.
  • the construction is simplified as a whole, since the electrical components are now at relatively short distances from each other.
  • the electrical components are arranged in the adjacent to the electric motor, the output member of the drive train opposite end face housing.
  • the connection between the electric motor and the power supply cable becomes particularly short. In addition, they are not disturbing in this frontal housing.
  • the assembly and possibly any inspection or repair work can be carried out particularly easily if the end-side housing wall is designed as a lid which is detachably fixed to the other housing parts. This is done for example by mechanical fasteners, preferably by screws.
  • an intermediate piece is arranged.
  • the length of the housing is increased.
  • the length of the intermediate piece can be varied. can, ie for different applications intermediate pieces of different lengths are used.
  • cable glands, adjusting devices for auxiliary switches and potentiometers, function switches and, moreover, mechanical components such as venting plugs are arranged in the end-side housing wall.
  • the remaining housing parts are designed shell-shaped and at least one housing part springs in the region of the output member in the direction of the parting plane of the two housing parts.
  • both housing parts jump in the region of the output member of the drive train by the same amount in the direction of the parting plane.
  • the output member of the drive train is in engagement with a centering and clamping device, so that the centering and clamping device follows the rotational movement of the output member and transmits this movement to the element leading to the actuator.
  • Figure 1 shows an actuator according to the invention in a perspective view showing the housing
  • Figure 2 shows the actuator according to the invention with cut housing.
  • the actuator 10 includes a housing to be regarded as closed, which consists of two elongated and cup-shaped housing parts 11, 12 and a cover 13 fixed thereto, which is detachably connected to the two housing parts 11, 12. This connection can be, for example done by screws.
  • the two housing parts 11, 12 are formed symmetrically and firmly connected to each other, for example, also by screws or by locking elements.
  • the parting plane of the two housing parts 11, 12 is indicated by the reference numeral 14.
  • a drive motor and a plurality of gear stages exhibiting drive train is installed in the space bounded by the housing parts 11, 12 interior.
  • the lid 13 a plurality of electrical components are arranged. So there are two function switches 15, 16 installed. Furthermore, the cover 13 contains two cable glands 17, 18, which are referred to in the industry as PG glands. Furthermore, an adjusting device 19 for auxiliary switch and for a potentiometer is still arranged in the lid. In addition, a vent plug 20 is inserted into the cover 13 yet.
  • the actuator 10 is kept as low as possible. This is particularly advantageous when the actuator 10 is mounted in a shaft or a similar tubular structure.
  • the drive motor is located in the interior of the housing parts 11, 12 adjacent to the cover 13. If it is necessary that a space for more functional parts is needed, it is quite possible that between the frontal surfaces of the housing parts 11, 12 and the lid 13 an unillustrated adapter is mounted.
  • the housing parts 11, 12 jump on the opposite side of the cover 13 in the direction of the parting plane 14. This creates free space on both sides to accommodate an unspecified explained centering and clamping device 21.
  • this centering and clamping device a rod can be fixed, which is in communication with an actuator to be adjusted.
  • the centering and clamping device 21 itself is positively connected to the sleeve-shaped output member of the drive train.
  • the popping of both housing parts 11, 12 in the direction of the parting plane 14 offers the advantage that in the case of a continuous sleeve-shaped output member, the centering and
  • Clamping device 21 either one of the housing parts 11, 12 can be assigned.
  • the drive train includes a rotationally drivable driven member 22, which is designed as a hollow bushing and provided with an internal toothing. In a manner not shown, the actuator can be adjusted via a rod inserted therein.
  • the actuator 10 is equipped with a manual adjustment shaft 23 in order to make an adjustment of the actuator when the electric motor is switched off.
  • the drive train includes a plurality of spur gears 24, which mesh with each other and form gear stages. Each gear stage contains two gears rotating at the same speed with different numbers of teeth.
  • the output member 22 is preceded by a gear stage which is functionally assigned to a brake spring 25 consisting of several turns.
  • the brake spring 25 is located within a cup-shaped housing 26.
  • the brake spring 25 is coupled to the associated gear stage so that it follows the movement of the gear stage upon rotation by means of the electric motor, not shown.
  • the brake spring 25 is inserted into a sleeve 27.
  • the brake spring 25 is activated by a control part, which is formed from a control inner part 28 and a control outer part 29.
  • the control outer part surrounds the control inner part 28, while the brake spring 25 surrounds the control outer part 29.
  • the drive-engineering arrangement is such that the drive train is not self-locking, but that immediately after switching off the electric motor, the control outer part 29 causes the brake spring 25 is widened and a frictional engagement with the inner surface of the
  • the brake spring 25 is designed and placed in such a position that an adjustment is no longer possible even when external forces act on the actuator.
  • the actuator 10 is therefore designed as a so-called spring return and equipped with a mainspring 30.
  • This may be, for example, a spiral spring, which spans or relaxes when the electric motor is switched on, depending on the direction of rotation of the output member 22 of the drive train, wherein the arrangement must be such that it relaxes during a power failure.
  • a plate 31 is still arranged inside the housing, which plate consists of an electrically insulating material, for example of a plastic.
  • the invention is not limited to the illustrated embodiment. It is essential that the drive train formed from the individual spur gears 24 is not self-locking, but that the adjustment of the actuator when switched off
  • Electric motor is prevented by the brake spring 25, which is activated via the control inner part 28 and the control outer part 29 accordingly.
  • the actuator 10 is formed as a spring return, so that the actuator or the output member 22 of the drive train can be moved in a predetermined position by a mainspring 30 in case of power failure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un mécanisme de commande électromotorisé pour des éléments de commande à faire pivoter, par exemple des clapets, des vannes ou similaires qui sont réalisés sous la forme de mécanismes à rappel à ressort. L'objet de l'invention doit être conçu de telle sorte qu'aucun changement de position de l'élément de commande et ainsi un retour du train d'entraînement ne soit possible, même en cas d'influence d'une force extérieure sur l'élément de commande et ainsi également sur l'élément (22) de sortie du train d'entraînement. Conformément à l'invention, le mécanisme (10) de commande est conçu de telle sorte que le train d'entraînement formé de pignons (24) droits n'est pas autobloquant et qu'un ressort (25) de freinage est en liaison active avec un étage d'engrenage monté avant l'élément (22) de sortie du train d'entraînement de manière à empêcher efficacement un changement de position de l'élément de commande lorsque le moteur d'entraînement est éteint, et ce même en cas de tentative de changement de la position de celui-ci par une force extérieure ou par contrainte. Le mécanisme (10) de commande est en outre réalisé sous la forme d'un mécanisme de rappel à ressort et équipé d'un ressort (30) moteur qui est disposé de telle sorte qu'il se détend en cas de panne de courant et fait ainsi office d'élément d'entraînement. Il est en outre important pour une construction compacte que les composants électriques soient disposés dans une paroi de boîtier côté frontal. Cette paroi de boîtier se trouve à l'opposé de l'élément de sortie du train d'entraînement. Le mécanisme (10) de commande conforme à l'invention peut notamment être utilisé en technique de chauffage, de climatisation et de ventilation.
EP06791874A 2006-09-06 2006-09-06 Mecanisme de commande electromotorise Withdrawn EP2059994A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/008688 WO2008028503A1 (fr) 2006-09-06 2006-09-06 Mécanisme de commande électromotorisé

Publications (1)

Publication Number Publication Date
EP2059994A1 true EP2059994A1 (fr) 2009-05-20

Family

ID=37907036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791874A Withdrawn EP2059994A1 (fr) 2006-09-06 2006-09-06 Mecanisme de commande electromotorise

Country Status (3)

Country Link
US (1) US20100039003A1 (fr)
EP (1) EP2059994A1 (fr)
WO (1) WO2008028503A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2842825C (fr) 2011-07-26 2017-01-24 Moog Inc. Systeme de serrage a moteur electrique
CN107429849A (zh) * 2014-12-15 2017-12-01 贝利莫控股公司 控制装置
CN108599455B (zh) * 2018-04-28 2019-09-06 上海交通大学 一种用于电机的无输入断电自锁装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518462A (en) * 1994-08-12 1996-05-21 Jordan Controls, Inc. Spring return electric actuator
EP0697571B1 (fr) * 1994-08-17 1997-12-17 Johnson Service Company Actionneur avec dispositif de rappel à ressort
US6084365A (en) * 1999-04-29 2000-07-04 Siemens Building Technologies, Inc. Actuator having timer-controlled power switching device
DE10120832B4 (de) * 2001-04-27 2006-03-02 Rk Rose + Krieger Gmbh & Co Kg Verbindungs- Und Positioniersysteme Elektromotorischer Stelltrieb
DE20107324U1 (de) * 2001-04-27 2001-06-28 Rose & Krieger Gmbh Co Kg Verstellantrieb
DE20107326U1 (de) * 2001-04-27 2001-06-28 Rose & Krieger Gmbh Co Kg Elektromotorische Verstelleinrichtung
US7066301B2 (en) * 2002-03-20 2006-06-27 Invensys Building Systems, Inc. Linear actuator having manual override and locking mechanism
US6725976B2 (en) * 2002-03-20 2004-04-27 Invensys Building Systems Inc. Manual override and locking mechanism and actuator including same
DE20207519U1 (de) * 2002-05-13 2002-07-25 Rose & Krieger Gmbh Co Kg Elektromotorischer Stellantrieb
JP2006230046A (ja) * 2005-02-15 2006-08-31 Jidosha Denki Kogyo Co Ltd アクチュエータ装置
JP4750461B2 (ja) * 2005-04-26 2011-08-17 株式会社 五十嵐電機製作所 回転制御機能付モータ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008028503A1 *

Also Published As

Publication number Publication date
WO2008028503A1 (fr) 2008-03-13
US20100039003A1 (en) 2010-02-18

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