EP0859380B1 - Electro-aimant de commande à double effet - Google Patents

Electro-aimant de commande à double effet Download PDF

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Publication number
EP0859380B1
EP0859380B1 EP97117126A EP97117126A EP0859380B1 EP 0859380 B1 EP0859380 B1 EP 0859380B1 EP 97117126 A EP97117126 A EP 97117126A EP 97117126 A EP97117126 A EP 97117126A EP 0859380 B1 EP0859380 B1 EP 0859380B1
Authority
EP
European Patent Office
Prior art keywords
armature
double
solenoid actuator
actuator according
poles
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.)
Expired - Lifetime
Application number
EP97117126A
Other languages
German (de)
English (en)
Other versions
EP0859380A3 (fr
EP0859380A2 (fr
Inventor
Volkmar Leutner
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.)
Robert Bosch GmbH
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
Publication of EP0859380A2 publication Critical patent/EP0859380A2/fr
Publication of EP0859380A3 publication Critical patent/EP0859380A3/fr
Application granted granted Critical
Publication of EP0859380B1 publication Critical patent/EP0859380B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F7/17—Pivoting and rectilinearly-movable armatures
    • 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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1684—Armature position measurement using coils

Definitions

  • the invention is based on an electromechanical Double stroke magnet according to the preamble of claim 1.
  • the electromechanical double stroke magnet according to the invention has the characteristic features of the main claim in contrast, the advantage that it is simple and compact Design achieves increased functionality by addition to a double-acting stroke an additional Rotational movement is generated. This additional function leaves make use of a single electrical axis.
  • the Double stroke magnet can be extremely inexpensive Realize construction, using existing components are largely usable. It is particularly advantageous further that for the additional function of the rotary movement the full magnetic flux is always used.
  • FIG. 1 shows a longitudinal section through an electromechanical double solenoid in a simplified Representation and Figure 2 shows a partial cross section II-II in Figure 1.
  • FIG. 1 shows a longitudinal section through a electromechanical double stroke magnet 10, which is essentially from a double-acting proportional magnet 11 and one Position measuring system 12 exists in a common housing 13 are arranged from magnetically conductive material.
  • the Housing has a valve-side, first end face 14, in the manner known per se e.g. one not closer drawn proportional valve can be attached.
  • the housing 13 extends from the valve side End face 14 in the longitudinal direction a continuous Hollow bore 15 to an opposite, valve-facing, second end face 16.
  • This hollow bore 15 is set down several times and forms a valve-side end face 14 open first section 17 with a larger diameter, which among other things two electromagnetic coils 18 and 19 of the Proportional magnet 11 takes.
  • a second section 20 closes in the hollow bore 15 with a smaller diameter in which a pressure tube 21 of the Double solenoid 10 is guided and stored.
  • the second Section 20 of the hollow bore 15 goes into a third Section 22 with larger diameter over to the second End face 16 is open.
  • the pressure pipe inserted into the stepped hollow bore 15 21 consists of several parts, so put together, soldered together and then are processed that the pressure pipe 21 after his Processing results in a one-piece component.
  • the one-piece pressure tube 21 therefore consists essentially of a multi-section anchor tube 23 and one fixed connected, one-piece sensor tube 24 with a smaller one Diameter.
  • the pressure pipe section 25 has one outwardly projecting ring flange 34 with which the Pressure pipe 21 in the first section 17 of the hollow bore 15 is guided, while on the other hand the pressure pipe part 26 its outer circumference in the region of the second section 19 of the Hollow bore 15 is guided.
  • the two electromagnetic coils 18, 19 arranged on the outer circumference of the pressure tube 21 are in the annular Space between the first section 17 of the hollow bore 15 and the anchor tube 23, the two electromagnetic coils 18, 19 arranged. Both coils are identical to each other, are concentric to each other and are one behind the other on the anchor tube 23 arranged, being separated from each other by a center disc 35 are separated from magnetic flux-conducting material radially between the inner wall of the housing 13 and the Outer diameter of the middle piece 29 extends.
  • the armature 33 is double with the aid of a plunger 36 stored.
  • the protruding through the pressure pipe section 25 to the outside Part of the plunger 36 forms a first bearing 37 in a magnetic core 38 which in the pressure pipe section 25 of the first end face 14 is inserted here.
  • On opposite end 39 of the plunger 36 is in a second bearing 41 performed in the pressure pipe part 26 is formed.
  • Adjacent to the second depository the transducer tube 24 is tightly fastened in the pressure tube part 26, the one inside which is operatively connected to the plunger 26 Ferrite core 42 receives.
  • the pickup coils 43 are arranged by a protective Sheath 44 are surrounded.
  • the ferrite core 42 and the Pickup coils 43 are parts of the Position measuring system 12.
  • a in the third section 22 inserted cover 45 protects the measuring system 12 in Housing 13 to the outside.
  • a Spring device 46 On the plunger 36 protruding on the end face 14 is a Spring device 46 arranged, the spring 47 in Connection with an attached unit the anchor 33 in of the drawn middle layer.
  • the spring 47 additionally be designed so that they anchor 33rd in relation to its angular position in a starting position holds.
  • the spring device 46 can preferably be designed in this way be that their spring 47 the armature 33 in relation to its Rotational position in the starting position shown in Figure 2 centered, in which the stator poles 51 and the armature poles 54 seen offset in the direction of rotation to each other.
  • the mode of operation of the double solenoid 10 corresponds with regard to its axial stroke movement Function of known double solenoids, so that only briefly it will be discussed.
  • Armature 33 using the two coils 18, 19 with two magnetic circuits separated from one another, which each create a force in the working air gaps.
  • the two coils 18, 19 of their Control flows in opposite directions, so that this too two forces are directed against each other.
  • the drawn center position with excited coils 18, 19th half the nominal current flows to a corresponding one To achieve pre-magnetization of the coils 18, 19.
  • the forces acting opposite to the armature 33 keep it in the drawn center position.
  • the additional functionality of the double solenoid 10, the depending on the energization of the two coils 18, 19 generates a torque for rotary adjustment can also be used in other ways. So can be between the double solenoid 10 and one arrange an additional valve to the assigned control valve, which evaluates the rotary movement of the double solenoid 10 so that a hydraulic additional signal - also as so-called "enable signal" is called - arises to Example system pressure with energized coils, return pressure for non-energized coils, which on the flange surface of the control valve and from there, for example a hydraulic check valve is forwarded.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnets (AREA)

Claims (9)

  1. Electro-aimant de commande à double effet notamment pour actionner un distributeur à tiroir, comprenant deux bobines électriques coaxiales, installées l'une à côté de l'autre dans un boítier sur un corps essentiellement tubulaire et séparées par un disque intermédiaire conducteur de flux magnétique, le corps recevant intérieurement un induit guidé en coulissement et mobile axialement, cet induit étant séparé des pièces polaires solidaires du boítier par des entrefers de travail, situés du côté frontal ou du côté de l'extrémité, et auxquels est associé un poussoir traversant au moins une pièce polaire,
    caractérisé en ce que
    dans le plan radial défini par le disque médian (35), des découpes (49) s'étendant dans la direction de rotation forment des pôles de stator (51) solidaires du boítier, et dans ce plan, l'induit (33) comporte des découpes (53) s'étendant dans la direction périphérique et formant les pôles (54) de l'induit, associés aux pôles (51) du stator.
  2. Electro-aimant à double effet selon la revendication 1,
    caractérisé en ce que
    le corps tubulaire est un tube de pression (21) séparant le côté du fluide du côté électrique et les découpes (49) formant les pôles (51) du stator se situent dans le disque médian (35) séparé du tube de pression (21) notamment au niveau de son diamètre intérieur (48).
  3. Electro-aimant à double effet selon la revendication 1 ou 2,
    caractérisé en ce que
    les découpes (53) de l'induit (33) s'étendent dans la direction axiale, suivant la plage de la course respective qui en fonctionnement, vient sous le disque médian (35).
  4. Electro-aimant à double effet selon l'une des revendications 1 à 3,
    caractérisé en ce que
    les pôles de stator (51) et les pôles d'induit (54) s'étendent respectivement sur un angle de rotation essentiellement égal.
  5. Electro-aimant à double effet selon la revendication 4,
    caractérisé en ce que
    le nombre de pôles de stator (51) et celui des pôles d'induit (54) sont égaux et correspondent à au moins à deux.
  6. Electro-aimant selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    l'induit (33) avec son poussoir (36) est monté des deux côtés solidairement au boítier notamment dans les deux pièces polaires (38, 26).
  7. Electro-aimant à double effet selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce qu'
    un système de mesure de course (12) est associé à l'induit (33).
  8. Electro-aimant à double effet selon l'une quelconque des revendications 1 à 7,
    caractérisé par une installation à ressort (46) assurant le centrage de l'induit (33) dans sa position médiane.
  9. Electro-aimant à double effet selon l'une quelconque des revendications 1 à 8,
    caractérisé par un ressort (47) rappelant l'induit (33) dans sa position de rotation de départ.
EP97117126A 1997-02-14 1997-10-02 Electro-aimant de commande à double effet Expired - Lifetime EP0859380B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705598 1997-02-14
DE19705598A DE19705598A1 (de) 1997-02-14 1997-02-14 Elektromechanischer Doppelhubmagnet

Publications (3)

Publication Number Publication Date
EP0859380A2 EP0859380A2 (fr) 1998-08-19
EP0859380A3 EP0859380A3 (fr) 1998-11-18
EP0859380B1 true EP0859380B1 (fr) 2002-06-05

Family

ID=7820191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117126A Expired - Lifetime EP0859380B1 (fr) 1997-02-14 1997-10-02 Electro-aimant de commande à double effet

Country Status (3)

Country Link
EP (1) EP0859380B1 (fr)
JP (1) JPH10233312A (fr)
DE (2) DE19705598A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9819844D0 (en) * 1998-09-12 1998-11-04 Kelsey Hayes Co Electromagnetic actuator
DE10320729A1 (de) 2003-05-08 2004-11-18 Bosch Rexroth Ag Hubmagnetanordnung
DE102006007157A1 (de) * 2005-07-20 2007-01-25 Continental Teves Ag & Co. Ohg Elektrisch ansteuerbares Ventil
DE102006010913B3 (de) * 2006-03-09 2007-06-21 Hydac Electronic Gmbh Betätigungsvorrichtung zum Durchführen von Steuerfunktionen, insbesondere zur Steuerung von Druckventilen
DE102008038455A1 (de) 2007-08-20 2009-02-26 Robert Bosch Gmbh Axialkolbenmaschine in Schrägscheibenbauweise mit einer Stellvorrichtung
DE102015003672A1 (de) * 2015-03-20 2016-09-22 Hydac Electronic Gmbh Betätigungsvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943155A (fr) * 1972-09-02 1974-04-23
US4501981A (en) * 1981-10-15 1985-02-26 Haydon Switch & Instrument, Inc. Return-to-zero stepper motor
DE4208367A1 (de) * 1992-03-16 1993-09-23 Bosch Gmbh Robert Elektromechanischer doppelhubmagnet

Also Published As

Publication number Publication date
EP0859380A3 (fr) 1998-11-18
DE19705598A1 (de) 1998-08-20
JPH10233312A (ja) 1998-09-02
DE59707411D1 (de) 2002-07-11
EP0859380A2 (fr) 1998-08-19

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