WO2011042472A1 - Actionneur à moteur électrique - Google Patents

Actionneur à moteur électrique Download PDF

Info

Publication number
WO2011042472A1
WO2011042472A1 PCT/EP2010/064936 EP2010064936W WO2011042472A1 WO 2011042472 A1 WO2011042472 A1 WO 2011042472A1 EP 2010064936 W EP2010064936 W EP 2010064936W WO 2011042472 A1 WO2011042472 A1 WO 2011042472A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric motor
rotor
electronics
electromotive actuator
actuator according
Prior art date
Application number
PCT/EP2010/064936
Other languages
German (de)
English (en)
Inventor
Volker Schulmayer
Julia Hilz
Original Assignee
Zf Friedrichshafen Ag
Kett, Juergen
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 Zf Friedrichshafen Ag, Kett, Juergen filed Critical Zf Friedrichshafen Ag
Publication of WO2011042472A1 publication Critical patent/WO2011042472A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • 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
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor

Definitions

  • the invention relates to an electromotive actuator according to the preamble of claim 1.
  • Electromotive actuators are used in a variety of different applications, such as in automated manual transmissions, active transfer gears, active suspensions, power steering systems or other applications, to provide a linear and / or rotational actuator movement for an actuator-actuated actuator using the electromotive actuators.
  • electromotive actuators have an electric motor, a sensor for detecting the rotation of a rotor of the electric motor, an electronics for controlling and / or regulating the electric motor and a mechanism for implementing the rotation of the rotor of the electric motor in the translational and / or rotational adjustment movement of the actuator actuated actuator.
  • Such electromotive actuators increasingly displace hydraulic or pneumatic actuators, wherein the actuators either fixedly attached to a housing or in a moving component, for example, in a shaft, can be integrated.
  • electromotive actuators known from practice, at least the electric motor, the sensor system and the electronics are each designed as separate, functionally and spatially separate subsystems of the electromotive actuator. This makes it necessary to cabling the electric motor with the electronics and the sensors with the electronics each consuming.
  • electromotive actuators on the one hand have a complex and therefore expensive construction, on the other hand, the same are susceptible to interference, since the wiring on the one hand between the electric motor and electronics and on the other hand between electronics and sensors in operation can unintentionally solve.
  • a brushless electric motor with associated sensor wherein a rotor-side rotor of the brushless electric motor via a shaft in two bearings, namely in an A-bearing and a B-bearing, is mounted, and wherein a Sensor for detecting the rotation of the rotor of the electric motor by a housing wall thereof extends, which is positioned adjacent to the B-bearing of the brushless electric motor.
  • the present invention based on the problem of creating a novel electromotive actuator.
  • the electric motor is designed as a brushless electric motor which is positioned together with the sensor system and the electronics in a common housing, the sensor system comprising at least two digital Hall sensors.
  • an electric motor actuator is proposed for the first time, the electric motor is positioned together with the sensor and the electronics in a common housing, wherein the electric motor of the electromotive actuator is designed as a brushless electric motor, and wherein the sensor at least two digital Hall sensors for detecting the rotation and thus the position of the rotor of the electric motor comprises.
  • Such an electromotive actuator requires no cumbersome wiring between the electric motor and electronics and between sensors and electronics. It is characterized by a simple and compact design and is particularly suitable for integration in moving or rotating systems. Thus, it is possible, for example, to integrate the electromotive actuator according to the invention in rotating at a high speed rotating shafts. Preferred embodiments of the invention will become apparent from the dependent claims and the description below. An embodiment of the invention will be described, without being limited thereto, with reference to the drawing. Showing:
  • FIG. 1 is a schematic representation of an electromotive actuator according to a first embodiment of the invention
  • 2 is a schematic representation of an electromotive actuator according to a second embodiment of the invention
  • Fig. 3 shows a detail, namely a B-bearing plate, the electromotive
  • FIG. 4 shows a further detail, namely a unit of sensor technology and electronics, of the electromotive actuator of FIG. 1 or 2.
  • Fig. 1 shows a highly schematic representation of an inventive electromotive actuator 1 according to a first embodiment of the invention.
  • the electromotive actuator 1 of FIG. 1 has an electric motor 2, a sensor 3 and an electronics 4, with the aid of the sensor 3, the rotation of a rotor 5 of the electric motor 2 relative to a stator 6 thereof can be detected, and wherein the electronics 4 of Control and / or regulation of the electric motor 2 is used.
  • the electromotive actuator 1 has a mechanism, in the illustrated embodiment via a shaft 7, by means of which the rotation of the rotor 5 of the electric motor 2 can be converted or implemented in an actuating movement of an actuator actuated by the actuator 1 according to the invention.
  • the electric motor 2, the sensors 3 and the electronics 4 of the electromotive actuator 1 according to the invention are positioned in a common housing 8 as shown in FIG.
  • the electric motor 2 according to the invention is a brushless electric motor, preferably a brushless DC motor, which is also referred to as an electrically commutating motor or power converter motor.
  • the sensor system 3, by means of which the rotation of the rotor 5 of the electric motor 2 can be detected, comprises at least two digital Hall sensors, namely three digital Hall sensors 9 in the exemplary embodiment shown.
  • the rotor 5 of the brushless electric motor 3, namely the brushless DC motor, is mounted in the common housing 8 via an A-bearing 10 and a B-bearing 11.
  • A-bearing 10 is the output side bearing
  • the B-bearing 1 1 to the output side bearing opposite bearing.
  • the A-bearing 10 is accommodated in a so-called A-bearing plate 12, the B-bearing in a so-called B-bearing plate 13.
  • the Hall sensors 9 of the sensor 3 are positioned directly at the B-bearing plate 13.
  • the digital Hall sensors 9 are preferably positioned between the B-end shield 13 and the electronics 4.
  • the B-end shield 13 covers a detected by the digital Hall sensors 9 magnetic field of the rotor 5 of the brushless DC motor 2, the rotor 5 of the electric motor 2, a Magnetgeberrad 14 is assigned.
  • the Magnetgeberrad 14 rotates together with the rotor 5 of the brushless DC motor 2, so then the digital Hall sensors 9 detect the magnetic field of the Magnetgeberrads 14 so as to determine the position of the rotor 5 of the electric motor 2 indirectly.
  • the Magnetgeberrad 14 is preferably positioned between the digital Hall sensors 9 of the sensor 3 and the B-bearing 1 1. In contrast to the exemplary embodiment shown in FIG.
  • the B-end shield 13 does not obscure a magnetic field of the rotor 5 of the brushless DC motor 2 to be detected by the digital Hall sensors 9.
  • the digital Hall sensors 9 detect the magnetic field of the rotor 5 directly, so as to determine its position directly.
  • Fig. 2 shows a second embodiment of an electromotive actuator 15 according to the invention
  • the rotor 5 of the brushless DC motor 2 is mounted exclusively via an A-bearing 10 with associated A-bearing plate 12 in the common housing 8.
  • the digital Hall sensors 9 of the sensor 3 can detect the magnetic field of the rotor 5 directly, so as to determine its location again directly.
  • the Hall sensors 9 are then positioned immediately adjacent to an end remote from the A-end shield 12 of the rotor 5 of the electric motor 2, in such a way that they are arranged between this end of the rotor 5 of the electric motor 2 and the electronics 4.
  • a B-bearing plate 13 which serves to receive the B-bearing 1 1, the same may, for example, as shown in Fig. 3, executed.
  • a B-end shield is typically made of a magnetically ineffective material, for example made of aluminum or plastic.
  • Fig. 3 which shows a view of a front side 16 in a variant of a B-bearing plate 13
  • the B-bearing plate 13 has at this front side 1 6 via a pin 17, which serves to receive the B-bearing 1 1.
  • the front side 1 6 of the B-bearing plate 13, which has the pin 17 is in the assembled state, the electric motor 2, namely the brushless DC motor, the electromotive actuator 1 faces.
  • the B-bearing plate 13 has a reduced wall thickness.
  • the wall thickness of the B-bearing plate 13 in the recesses 18 is so small that the Hall sensors 9 through the B-bearing plate 13 through the magnetic field of the rotor 5 of the electric motor 2 can detect directly, in which case optionally on the Magnetgeberrad 14th can be waived. Due to the closed front side 1 6 of the B-end shield 13, however, the Hall sensors 9 are protected from damage and / or contamination.
  • the sensors 3 and the electronics 4 of the electromotive actuator 1 according to the invention are formed as a unit.
  • This unit of electronics 4 and sensor 3 is, as already stated, positioned together with the brushless DC motor 2 of the actuator 1 according to the invention in the housing 8, wherein the relative position of the unit of electronics 4 and sensor 3 in the housing 8 via slots 1 9 defined is, in which in the assembled state of the actuator 1 according to the invention webs of the housing 8 engage.
  • the bearing plate 13, which in the assembled state of the electromotive actuator 1 according to the invention between the unit of electronics 4th and sensor 3 and the electric motor 2 is positioned as shown in FIG. 3 has a plurality of slots 20 which are distributed over the circumference of the B-bearing plate 13. Via these slots 20, it is possible in a simple manner to contact the electronics 4 with the electric motor 2, namely windings of the stator 6 of the electric motor 2. This contacting of the electronics 4 with the windings of the stator 6 viatechnischtechnischs reconstructe 21, which extend through the slots 20 in the B-end shield 13 in the assembled state of the actuator 1. There are two pairs ofmaschinetechnischsconfigen 21 for contacting the electronics 4 with the three phases of the brushless DC motor 2.
  • the B-bearing plate 13 shown in Fig. 3 therefore has a pin 17 for receiving the actual B-bearing 1 1, via recesses 18 for receiving the digital Hall sensors 9 of the sensor 3 and via slots 20 through which for contacting the electronics. 4 with the windings of the stator 6 of the electric motor 2 and for contacting a temperature sensor with the electronics 4 Mulltechnische 21 and 22 extend.
  • the B-bearing plate 13 is made of a magnetically inactive material, wherein if the material thickness or wall thickness in the region of the recesses 18 is low enough, if necessary, directly through the B-bearing plate 13, a magnetic field of the rotor 5 of the electric motor 2 are detected can, in which case can be dispensed with a Magnetgeberrad 14.
  • the electronics 4 and the sensors 3 together form one unit.
  • the electronics 4 can be designed as a thick-film hybrid circuit, in which case the electronics 4 is inserted into the B-end shield and after contacting the windings of the stator 6 of the electric motor 2 is shed with these. In this case, then form electronics 4, sensor 3, B-bearing plate 13 and the windings of the stator 6 of the electric motor 2 is a unit.
  • the electronics 4 can also be designed as a board with the interior of the same introduced active components, in which case the electronics forms a so-called active multilayer electronics.
  • the electronics may in this case have a metallized surface to press the same directly into the B-end shield.
  • the electronics 4 can also be designed as a populated FR4 board. In this case, in turn, after contacting the electronics 4 with the windings of the stator 6 of the electric motor 2, electronics 4 with the end shield 13 can be cast into one unit.
  • Electromotive actuators according to the invention are particularly suitable for integration in moving assemblies, for example in a shaft rotating at high speed.
  • the electromotive actuator according to the invention can be connected to a data bus via a bus interface (not shown in the drawing).
  • a bus interface (not shown in the drawing).
  • the electromotive actuator 1 or 15 can be supplied with voltage or current, for example with direct current or direct current, via a further, not-shown interface, wherein the voltage supply or current supply can have any voltage level or current level which depends on the voltage level Application is in which the electromotive actuator 1 or 15 is installed.
  • the electronics 4 a rectification of the supply voltage can be integrated, so that the actuator 1, 15 can be supplied with AC voltage of any frequency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Brushless Motors (AREA)

Abstract

La présente invention concerne un actionneur à moteur électrique (1) comportant un moteur électrique (2), un ensemble de détection (3) permettant de détecter la rotation d'un rotor (5) du moteur électrique (2), un ensemble électronique (4) permettant de commander et/ou de réguler le moteur électrique (2), et un ensemble mécanique (7) permettant le transfert, voire la conversion, de la rotation du rotor (5) du moteur en un mouvement de positionnement par translation et/ou rotation d'un élément de positionnement pouvant être actionné par l'actionneur. En l'occurrence, le moteur électrique (2) est un moteur électrique sans balais (2) qui est implanté dans le même logement (8) que l'ensemble de détection (3) et l'ensemble électronique, l'ensemble de détection (3) comprenant au moins deux capteurs à effet Hall (9).
PCT/EP2010/064936 2009-10-09 2010-10-06 Actionneur à moteur électrique WO2011042472A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009045505.1 2009-10-09
DE102009045505A DE102009045505A1 (de) 2009-10-09 2009-10-09 Elektromotorischer Aktuator

Publications (1)

Publication Number Publication Date
WO2011042472A1 true WO2011042472A1 (fr) 2011-04-14

Family

ID=43415215

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/064936 WO2011042472A1 (fr) 2009-10-09 2010-10-06 Actionneur à moteur électrique

Country Status (2)

Country Link
DE (1) DE102009045505A1 (fr)
WO (1) WO2011042472A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2709262A2 (fr) 2012-09-14 2014-03-19 Aktiebolaget SKF Actionneur électromécanique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977093B1 (fr) * 2011-06-21 2016-09-02 Faurecia Bloc Avant Moteur electrique comprenant au moins un capteur de flux magnetique
DE102016208767A1 (de) 2016-05-20 2017-11-23 Zf Friedrichshafen Ag Magnetfeldaufnehmermodul und elektrische Maschine

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EP1126582A2 (fr) * 2000-01-26 2001-08-22 Pierburg Aktiengesellschaft Actionneur linéaire
JP2002349137A (ja) * 2001-05-22 2002-12-04 Keihin Corp 車両用パワースライドドアの制御装置
DE10239557A1 (de) * 2002-08-23 2004-03-11 Sew-Eurodrive Gmbh & Co Kg Elektromotor und Baureihe von Elektromotoren
WO2006039968A1 (fr) * 2004-10-02 2006-04-20 Schaeffler Kg Dispositif de réglage d'arbre à cames
EP1758230A2 (fr) * 2005-08-25 2007-02-28 Sanyo Denki Co., Ltd. Machine électrique tournante ayant un ou plusieurs capteurs magnétiques
US20070178723A1 (en) * 2006-02-01 2007-08-02 Nidec Corporation Busbar Unit, Electric Motor and Electrohydraulic Power Steering System Furnished With the Busbar Unit, and Method of Manufacturing the Busbar Unit
EP1821390A2 (fr) * 2006-02-21 2007-08-22 Zf Friedrichshafen Ag Entraînement électrique pour un stabilisateur réglable
DE102007000446A1 (de) 2006-08-29 2008-03-20 Denso Corp., Kariya Bürstenloser Motor und zugehöriger Sensor
WO2008146502A1 (fr) * 2007-05-25 2008-12-04 Mitsubishi Electric Corporation Moteur sans balai

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126582A2 (fr) * 2000-01-26 2001-08-22 Pierburg Aktiengesellschaft Actionneur linéaire
JP2002349137A (ja) * 2001-05-22 2002-12-04 Keihin Corp 車両用パワースライドドアの制御装置
DE10239557A1 (de) * 2002-08-23 2004-03-11 Sew-Eurodrive Gmbh & Co Kg Elektromotor und Baureihe von Elektromotoren
WO2006039968A1 (fr) * 2004-10-02 2006-04-20 Schaeffler Kg Dispositif de réglage d'arbre à cames
EP1758230A2 (fr) * 2005-08-25 2007-02-28 Sanyo Denki Co., Ltd. Machine électrique tournante ayant un ou plusieurs capteurs magnétiques
US20070178723A1 (en) * 2006-02-01 2007-08-02 Nidec Corporation Busbar Unit, Electric Motor and Electrohydraulic Power Steering System Furnished With the Busbar Unit, and Method of Manufacturing the Busbar Unit
EP1821390A2 (fr) * 2006-02-21 2007-08-22 Zf Friedrichshafen Ag Entraînement électrique pour un stabilisateur réglable
DE102007000446A1 (de) 2006-08-29 2008-03-20 Denso Corp., Kariya Bürstenloser Motor und zugehöriger Sensor
WO2008146502A1 (fr) * 2007-05-25 2008-12-04 Mitsubishi Electric Corporation Moteur sans balai

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* Cited by examiner, † Cited by third party
Title
RICHARD CROWDER: "Electric Drives and Electromechanical Systems", 2006, REFEREX, pages: 178 - 181, XP040426010 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2709262A2 (fr) 2012-09-14 2014-03-19 Aktiebolaget SKF Actionneur électromécanique
DE102012216366A1 (de) * 2012-09-14 2014-03-20 Aktiebolaget Skf Elektromechanischer Aktuator
US9678510B2 (en) 2012-09-14 2017-06-13 Aktiebolaget Skf Electromagnetic actuator
EP2709262A3 (fr) * 2012-09-14 2018-01-03 Aktiebolaget SKF Actionneur électromécanique

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