WO1990002870A1 - Actuateur rotatif electrique - Google Patents

Actuateur rotatif electrique Download PDF

Info

Publication number
WO1990002870A1
WO1990002870A1 PCT/DE1989/000543 DE8900543W WO9002870A1 WO 1990002870 A1 WO1990002870 A1 WO 1990002870A1 DE 8900543 W DE8900543 W DE 8900543W WO 9002870 A1 WO9002870 A1 WO 9002870A1
Authority
WO
WIPO (PCT)
Prior art keywords
pole
stator
rotor
poles
width
Prior art date
Application number
PCT/DE1989/000543
Other languages
German (de)
English (en)
Inventor
Corneliu Lungu
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to DE8989909163T priority Critical patent/DE58902723D1/de
Publication of WO1990002870A1 publication Critical patent/WO1990002870A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures
    • H01F7/145—Rotary electromagnets with variable gap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator

Definitions

  • the invention relates to an electric rotary actuator for driving an actuator, in particular a throttle valve in the air intake pipe of an internal combustion engine, the type defined in the preamble of claim 1.
  • Such a rotary actuator is described for example in DE-OS 37 43 309.
  • E-gas rotary actuators it is essential that if the power supply fails, the rotary actuator returns to its starting position, in which the throttle valve largely closes the cross section of the air intake pipe.
  • a return spring acting on the actuating shaft or on the throttle valve connected in a rotationally fixed manner is provided for this purpose.
  • such a return spring adversely affects the useful torque available on the actuating shaft.
  • stator and rotor poles are designed identically and symmetrically and are evenly distributed on the stator and rotor.
  • the turntable according to the invention with the characterizing features of claim 1 has the advantage that a maximum due to the asymmetrical design of the stator and rotor poles in the manner mentioned within the predetermined angle of rotation range of the rotor
  • Magnetic flux change is caused, which generally leads to high efficiency.
  • the torque curve can be specifically measured depending on the angle of rotation.
  • the air gap is additionally formed asymmetrically such that the radial width of the air gap sections between the rotor and stator poles is minimal in the starting position of the rotor when the excitation winding is without current and is maximal in the end position reached by stator excitation, then occurs in the After switching off the stator excitation, the end position of the rotor has a magnetic restoring torque which turns the rotor back into its starting position.
  • a rotatable with the throttle valve connected to the control shaft automatically returns to its closed position. This eliminates the need for a return spring and by eliminating it, the useful torque on the actuating shaft is improved.
  • the rotor poles abut one another on an axial longitudinal side and extend in the circumferential direction over approximately 120 ° to 130 ° and that the pole width of the one stator pole is approximately 130 ° and that of the other is approximately 230 °, the surface section of the pole surface of the stator pole, which extends from the leading edge of this stator pole over approximately 100 °, being set back from the remaining surface section.
  • the drawing shows a side view of an electric turntable, partially sectioned and in a schematic representation.
  • the rotary actuator shown schematically in the drawing • serves to drive a throttle valve in the air intake pipe of an internal combustion engine, which minimally releases the cross section of the air intake pipe in an idling position and completely in a full throttle position. Idle and full throttle positions are indicated in the drawing by a dash-dotted line. The transition from idle to full throttle is achieved by rotating the throttle valve by approx. 90 °.
  • the throttle valve is connected to an actuating shaft 10 of the rotary actuator.
  • the rotary actuator consists in a known manner of a stator 11 and a rotor 12 rotating in the stator 11, which rotor is connected in a rotationally fixed manner to the actuating shaft 10.
  • the stator 11 carries two distinct stator poles 13, 14, which are designed asymmetrically with pole widths that differ greatly from one another (measured in the circumferential direction).
  • the two stator poles 13, 14 are connected to one another via a yoke 17.
  • the yoke 17 is surrounded by a coil 18 having a single-stranded excitation winding 19, the predetermined desired to ⁇ rotation of the rotor 12 with a direct current size is Bestro t.
  • the polarity of the excitation winding 19 is chosen so that the stator pole 14 with the larger pole width forms the south pole and the stator pole 13 with the smaller pole width the north pole.
  • the rotor 12 carries two permanent magnetic rotor poles 20 and 21, which are formed by shell-shaped permanent magnet segments.
  • the identically designed permanent magnet segments 22, 23 are fastened on a support 24, which is connected in a rotationally fixed manner to the adjusting shaft 10, in an asymmetrical arrangement, the two permanent magnet segments 22, 23 abutting each other with one of their axial longitudinal sides 22a and 23a.
  • the magnetization of the rotor poles 20, 21 is such that, in the starting position of the rotor 12 shown in the drawing, the permanent magnetic north pole 22 is essentially overlapped by that stator pole 13 which also represents the north pole and the permanent magnetic south pole 23 in the region of the the south pole 0 forming stator pole 14.
  • An annular air gap 25 is formed between the stator poles 13, 14 and the rotor poles 20, 21.
  • the air gap section 251 under the pole face 15 of the stator pole 13 is essentially constant, there are two air gap sections 252 and 253 with a widely differing radial air gap width below the pole face 16 of the stator pole 14. While the air gap section 252 has the same air gap width as the air gap section 251 under the stator pole 13, the radial air gap width in the region of the air section 253 is greatly increased.
  • the stator pole 14 with the larger pole width has a pole surface section 161 which extends approximately over half the pole width and is radially set back with respect to the remaining surface section 162 of the pole surface 16.
  • the arrangement of the asymmetrical stator poles 13 and 14 and the asymmetrical rotor poles 20, 21 seated on the carrier 24 is such that in the starting position of the rotor 12 shown in the drawing, with the excitation winding 19 deenergized, the rotor and stator poles 13, 14 and 20, respectively , 21 are opposite one another at the air gap 25 with a minimal air gap width and when the rotor 12 is rotated by approximately 90 ° the rotor pole 20 forming the north pole is essentially covered by the recessed surface section 161 of the pole face 16 of the stator pole 14 forming the south pole with the larger pole width.
  • This has the effect that in this state, when the energization of the excitation winding 19 is switched off, the rotor 12 returns to the starting position shown in the drawing.
  • the pole width of the rotor poles 20, 21 measured in the circumferential direction bears approximately 130 °
  • the pole width of the stator pole 13 with the smaller pole width 13 also measured in the circumferential direction likewise approximately 130 ° and
  • Pole width of the stator pole 14 with the larger pole width about 230 °.
  • the set-back surface section 161 of the pole surface 16 of the latter stator pole 14 extends from the pole edge running up with respect to the rotor rotation over approximately 100 °. Due to the asymmetrical design of the rotor and stator poles 20, 21, 13, 14, a torque-dependent curve of the torque can be achieved. A maximum change in magnetic flux is brought about within the predetermined rotation angle range of 90 °, which leads to high efficiency.
  • the rotor 12 Due to the minimum air gap width in the starting position of the rotor 12 and the maximum air gap width in the end position of the rotor 12, the rotor 12 returns to its starting position when the stator excitation is switched off by the magnetic moment, so that a separate, reducing the useful torque on the actuating shaft 10 Return spring for the rotor 12 can be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

Un actuateur rotatif électrique d'entraînement d'un élément de réglage, notamment d'une soupape d'étranglement agencée dans la tubulure d'aspiration d'air d'un moteur à combustion interne, comprend un stator bipolaire (11) excité par courant continu et un rotor bipolaire (12) à aimants permanents. Afin d'augmenter son efficacité et d'obtenir une courbe de couple mesurable en fonction de l'angle de rotation, les deux pôles (13, 14) du stator sont asymétriques et les pôles (20, 21) du rotor (12) sont asymétriquement agencés et s'étendent sur un angle circonférentiel supérieur à 90°.
PCT/DE1989/000543 1988-09-05 1989-08-19 Actuateur rotatif electrique WO1990002870A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8989909163T DE58902723D1 (de) 1988-09-05 1989-08-19 Elektrischer drehsteller.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3830114A DE3830114A1 (de) 1988-09-05 1988-09-05 Elektrischer drehsteller
DEP3830114.8 1988-09-05

Publications (1)

Publication Number Publication Date
WO1990002870A1 true WO1990002870A1 (fr) 1990-03-22

Family

ID=6362310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1989/000543 WO1990002870A1 (fr) 1988-09-05 1989-08-19 Actuateur rotatif electrique

Country Status (3)

Country Link
EP (1) EP0432181B1 (fr)
DE (2) DE3830114A1 (fr)
WO (1) WO1990002870A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558362A1 (fr) * 1992-02-28 1993-09-01 Moving Magnet Technologies S.A. Actionneur rotatif électromagnétique monophasé de course entre 60 et 120 degrés
WO1994004807A1 (fr) * 1992-08-11 1994-03-03 Robert Bosch Gmbh Organe correcteur pour ajuster l'angle de rotation d'un element de reglage
WO1995034903A1 (fr) * 1994-06-10 1995-12-21 Philips Electronics N.V. Dispositif d'entrainement d'un element de regulation
GB2290911A (en) * 1994-06-28 1996-01-10 Dafydd Roberts Rotary electromagnetic actuator
WO1996024761A1 (fr) * 1995-02-10 1996-08-15 Philips Electronics N.V. Dispositif pour actionner un element de commande
WO1998022956A1 (fr) * 1996-11-15 1998-05-28 Philips Electronics N.V. Dispositif d'actionnement comportant un aimant auxiliaire d'une taille minime, et dispositif de commande des gaz faisant appel a ce dispositif d'actionnement
KR19980081760A (ko) * 1997-04-28 1998-11-25 요트.게.아.롤페즈 안정화 정자기 토크를 갖는 전기 액츄에이터, 및 이러한 액츄에이터를 구비한 교축 장치

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038761A1 (de) * 1990-12-05 1992-06-11 Bosch Gmbh Robert Drehsteller
DE4038760A1 (de) * 1990-12-05 1992-06-11 Bosch Gmbh Robert Drehsteller
DE4215011B4 (de) * 1991-05-10 2006-10-12 Papst Licensing Gmbh & Co. Kg Elektromagnetischer Verstellantrieb
DE4245077B4 (de) * 1991-05-10 2007-09-27 Papst Licensing Gmbh & Co. Kg Elektromagnetischer Verstellantrieb
DE4443618C5 (de) * 1993-12-17 2004-02-05 Siemens Ag Winkelstellantrieb
WO1996027323A1 (fr) * 1995-03-07 1996-09-12 John Dumergue Charters Appareil de dilatation d'une cavite du corps

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909685A (en) * 1955-08-08 1959-10-20 Ericsson Telefon Ab L M Magnet core for pulse motors
US3991332A (en) * 1972-07-31 1976-11-09 Kabushiki Kaisha Suwa Seikosha Stepping motor
US4276499A (en) * 1976-11-30 1981-06-30 Denki Onkyo Company, Limited Rotary actuator
US4698535A (en) * 1985-04-04 1987-10-06 Aisin Seiki Kabushiki Kaisha Electric motor operated throttle valve
DE3743309A1 (de) * 1987-12-21 1989-06-29 Bosch Gmbh Robert Verfahren und einrichtung zur erkennung und lockerung verklemmter stellelemente

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909685A (en) * 1955-08-08 1959-10-20 Ericsson Telefon Ab L M Magnet core for pulse motors
US3991332A (en) * 1972-07-31 1976-11-09 Kabushiki Kaisha Suwa Seikosha Stepping motor
US4276499A (en) * 1976-11-30 1981-06-30 Denki Onkyo Company, Limited Rotary actuator
US4698535A (en) * 1985-04-04 1987-10-06 Aisin Seiki Kabushiki Kaisha Electric motor operated throttle valve
DE3743309A1 (de) * 1987-12-21 1989-06-29 Bosch Gmbh Robert Verfahren und einrichtung zur erkennung und lockerung verklemmter stellelemente

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558362A1 (fr) * 1992-02-28 1993-09-01 Moving Magnet Technologies S.A. Actionneur rotatif électromagnétique monophasé de course entre 60 et 120 degrés
FR2688105A1 (fr) * 1992-02-28 1993-09-03 Moving Magnet Tech Actionneur rotatif electromagnetique monophase de course entre 60 et 120 degres.
WO1994004807A1 (fr) * 1992-08-11 1994-03-03 Robert Bosch Gmbh Organe correcteur pour ajuster l'angle de rotation d'un element de reglage
WO1995034903A1 (fr) * 1994-06-10 1995-12-21 Philips Electronics N.V. Dispositif d'entrainement d'un element de regulation
US5624100A (en) * 1994-06-10 1997-04-29 U.S. Philips Corporation Device for actuating a control member
GB2290911A (en) * 1994-06-28 1996-01-10 Dafydd Roberts Rotary electromagnetic actuator
WO1996024761A1 (fr) * 1995-02-10 1996-08-15 Philips Electronics N.V. Dispositif pour actionner un element de commande
WO1998022956A1 (fr) * 1996-11-15 1998-05-28 Philips Electronics N.V. Dispositif d'actionnement comportant un aimant auxiliaire d'une taille minime, et dispositif de commande des gaz faisant appel a ce dispositif d'actionnement
KR19980081760A (ko) * 1997-04-28 1998-11-25 요트.게.아.롤페즈 안정화 정자기 토크를 갖는 전기 액츄에이터, 및 이러한 액츄에이터를 구비한 교축 장치

Also Published As

Publication number Publication date
DE3830114A1 (de) 1990-03-15
EP0432181B1 (fr) 1992-11-11
EP0432181A1 (fr) 1991-06-19
DE58902723D1 (de) 1992-12-17

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