EP1368814B1 - Actionneur - Google Patents

Actionneur Download PDF

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Publication number
EP1368814B1
EP1368814B1 EP02748309A EP02748309A EP1368814B1 EP 1368814 B1 EP1368814 B1 EP 1368814B1 EP 02748309 A EP02748309 A EP 02748309A EP 02748309 A EP02748309 A EP 02748309A EP 1368814 B1 EP1368814 B1 EP 1368814B1
Authority
EP
European Patent Office
Prior art keywords
armature
actuator according
magnetic
path element
magnetic return
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
EP02748309A
Other languages
German (de)
English (en)
Other versions
EP1368814A2 (fr
Inventor
Erwin Krimmer
Wolfgang Schulz
Christian Lorenz
Matthias Brendle
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 EP1368814A2 publication Critical patent/EP1368814A2/fr
Application granted granted Critical
Publication of EP1368814B1 publication Critical patent/EP1368814B1/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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding

Definitions

  • Electric actuators for valves or relays have at least three iron parts in a magnetic circuit, a magnetic armature and a two-part magnetic yoke, which consists of a magnet pot and a magnetic core.
  • the possibility of being able to make better use of the working capacity of the magnet by adapting the magnetic characteristic to the required force-path profile of the respective valve or relay draws complex armature / armature counterpart geometries and high demands on accuracy and tolerances in conventional magnets.
  • the US Pat. No. 6,175,291 B1 discloses an electromagnet, consisting of a magnetic coil which receives an armature rod movable along the coil axis, and a bearing of the armature or the anchor rod in a core also guiding the magnetic field, wherein a direct mounting of the armature or the anchor rod on a surface of the core is provided.
  • an electromagnet with an armature whose rod serves to carry out control operations.
  • the manufacture of the anchor is simplified by the rod engages the anchor over its entire length and consists of plastic.
  • the actuator according to the invention with the characterizing features of claim 1 has the advantage that in a simple manner, an actuator can be produced, which consists only of two iron parts in the magnetic circuit, and also reaches a consistently high magnetic force over a long path. It is thereby exploited the force-displacement curve of two different types of magnet.
  • the actuator is a simple and inexpensive construction, which is particularly advantageous in terms of the number of components and the required manufacturing accuracy and machining processes.
  • the return element has a sufficiently large proportional radial surface.
  • a sleeve is arranged in a coil.
  • the pressed-in in the coil sleeve combines the securing and centering of a coil in the return element and limited with high accuracy a radial distance between the armature and the magnetic yoke, whereby the magnetic forces in the radial direction over the entire armature stroke are effectively limited. It also serves for magnetic isolation.
  • a drawn sleeve enables a high surface quality coupled with good sliding properties and high strength at low production costs.
  • the return element is advantageous to manufacture as a stamped and bent part because this is a simple and inexpensive manufacturing process for the return element.
  • the anchor is advantageously a hollow cylinder, which is advantageously produced as a stamped and bent part.
  • beads are embossed on the outer surface of the armature, which can be calibrated by cold forming in order to achieve a certain geometry / tolerance.
  • the actuator can be used advantageously for a valve if a sealing plug is arranged in the armature, which seals in each case an opening in a three-way channel.
  • FIG. 1 shows parts of an inventive actuator 1 ( FIG. 3a . 3b ).
  • the actuator 1 consists at least of a magnetic return element 3, which is produced as a stamped and bent part and, for example, consists of a single piece.
  • the return element 3 has a first surface 21 and a second surface 24, which are arranged parallel to one another and extend perpendicular to an axial direction 18.
  • the return element 3 further includes, for example, a first, second, third side surface 27, 28, 29 connecting the first and second surfaces 21, 24. For example, there is a gap 30 between the side surfaces 27, 28, 29, respectively.
  • the first surface 21 has, for example, a feeder 38, which extends annularly in the axial direction 18 to the outside.
  • An armature 9 is in the assembled state of the actuator 1 (FIG. Fig. 3a ) is arranged in the sleeve 6 and is displaceable in this sleeve 6 in the axial direction 18 between two end points.
  • the armature 9 is for example a hollow cylinder and is produced, for example, as a stamped and bent part. Often, an outer diameter must be adjusted in the anchor 9, so that it is well movable in the sleeve 6. Therefore, the armature 9, for example, on an outer lateral surface 41 outwardly embossed beads 12, which can be calibrated by removing or reshaping to produce a certain outer diameter.
  • a sealing plug 15 may be attached.
  • FIG. 2 shows a coil 45 which is wound on a bobbin 48.
  • On the bobbin 48 also electrical connections 51 are arranged, through which the coil 45 can be electrically energized from the outside.
  • the coil 45 is, for example, laterally through the gap 30 between the first side surface 27 and the third side surface 29 in the return element 3 of FIG. 1 introduced, in which case a coil opening 46 is aligned with the openings 32 and 35 of the return element 3 ( Fig. 3a ).
  • FIG. 3a shows an inventive actuator 1 in axial cross section in with its armature 9 a first end position.
  • the sleeve 6 is close to the return element 3 and the coil 45 and the bobbin 48.
  • the coil 45 is energized in this position, so that a spring (not shown) of a valve which acts on the armature 9 is tensioned.
  • a second end 66 of the return element 3 of the indentation 38 is formed, which forms a sufficiently large radial surface, so that a magnetic resistance between the radial surface of the return element 3 and the armature 9 is low.
  • the force-displacement (stroke) curve of the armature 9 is therefore predominantly determined by a first end 63 of the return element 3 lying on the second surface 24.
  • the armature 9 is completely disposed in the sleeve 6 and rests on a stop surface 54 of the return element 3, which extends in a radial direction 72 beyond the sleeve 6, i. the opening 35 of the second surface 24 has a smaller inner diameter than the opening 32 of the first surface 21.
  • the stop surface 54 is perpendicular to the axial direction 18.
  • the magnetic flux extends largely at the first end 63 through an end face 57 of the armature 9 and the abutment surface 54, since this is the shortest distance to the return key element 3.
  • the distance to the return element 3 in the radial direction 72 is larger by the sleeve.
  • the magnetic flux profile is indicated by arrows 60.
  • FIG. 3b shows the armature 9 in a second end position.
  • the magnetic force is smaller than the spring restoring force, wherein the armature 9 in comparison to the position according to FIG. 3a is displaced by a stroke and protrudes from the sleeve 6 at the end 66. This is done, for example, by engaging a spring (not shown) of a valve on the armature 9, which in this position is more relaxed than in the first end position according to FIG. 3a is.
  • the sleeve 6 can also be designed so that the armature 9 is arranged completely in the sleeve 6 despite a movement. However, the magnetic flux path 60 at the first end 63 of the return element 3 differs in this position from that of the FIG.
  • the magnetic flux curve 60 begins at the end face 57 of the armature 9 and then extends over a radial proportional surface 69 of the magnetic return element 3, since this profile has the lowest magnetic resistance.
  • the magnetic flux curve 60 is curved here. This magnetic flux curve corresponds to that of a proportional magnet and leads to its characteristic force-stroke curve.
  • the magnetic flux gradient here has a particularly high axial component.
  • An actuator according to the prior art has an end surface 75, which is shown here by dashed lines.
  • the end face 75 is approximately at the same axial height 18 as one end of the coil 45 or the bobbin 48 in the region of its second end position.
  • the actuator 1 has on the return element 3 an offset 90, for example, the height h ', which projects beyond the second surface 24.
  • a distance between the end face 75 and the abutment surface 54 of the return element 3 in the axial direction 18 corresponds approximately to the maximum stroke h of the armature 9.
  • FIG. 4 shows an application example of the inventive actuator 1 as a 3/2-way valve.
  • the sealing plug 15 of the actuator 1 according to the invention is arranged, for example, in a three-connection channel 78 with a first, second and third channel opening 81, 84, 87.
  • the sealing plug 15 can be moved back and forth in the axial direction 18 and optionally closes the first channel opening 81 or the second channel opening 84, so that either a connection from the channel opening 81 to the channel opening 87 is made or a connection from the second channel opening 84 to the third channel opening 87.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Linear Motors (AREA)

Claims (11)

  1. Actionneur, en particulier pour une soupape ou un relais,
    constitué au moins
    d'une bobine électrique (45),
    d'un élément de culasse magnétique (3) pour la bobine,
    d'un induit (9), qui est disposé au moins en partie dans la bobine (45),
    l'induit (9) pouvant être déplacé entre deux positions de fin de course dans une direction axiale (18),
    l'allure du flux magnétique dans une première position de fin de course de l'induit (9) s'étendant principalement à travers une surface au niveau d'une première extrémité (63) de l'élément de culasse (3) perpendiculairement à la direction axiale (18), et
    l'allure du flux magnétique dans une deuxième position de fin de course s'étendant depuis l'induit (9) principalement à travers une surface au niveau de la première extrémité (63) de l'élément de culasse (3) qui s'étend parallèlement à la direction axiale (18),
    caractérisé en ce que
    l'élément de culasse (3) est une pièce estampée/cintrée qui présente une première et une deuxième surface (21, 24), qui sont disposées parallèlement l'une à l'autre, s'étendent perpendiculairement à une direction axiale (18) et sont connectées par le biais de surfaces latérales (27, 28, 29), une première ouverture (32) étant prévue dans la première surface (21), à travers laquelle une douille (6) recevant de manière mobile l'induit (9) est introduite dans l'élément de culasse (3).
  2. Actionneur selon la revendication 1,
    caractérisé en ce que
    l'induit (9) a une surface frontale (57) et en ce que l'élément de culasse (3) présente, à une première extrémité (63), une surface radiale (69) proportionnelle suffisamment grande vers laquelle la surface frontale (57) est orientée, de sorte qu'une résistance magnétique entre la surface radiale proportionnelle (69) et la surface frontale (57) soit aussi petite que possible.
  3. Actionneur selon la revendication 1,
    caractérisé en ce que
    l'élément de culasse (3) présente une entrée (38) à une deuxième extrémité (66).
  4. Actionneur selon la revendication 1,
    caractérisé en ce qu'
    une douille (6) est disposée dans la bobine (45).
  5. Actionneur selon la revendication 1,
    caractérisé en ce que
    l'induit (9) est un cylindre creux.
  6. Actionneur selon la revendication 1,
    caractérisé en ce que
    l'induit (9) est une pièce estampée-cintrée.
  7. Actionneur selon la revendication 1 ou 6,
    caractérisé en ce que
    l'induit (9) a des moulures (12) sur la surface d'enveloppe extérieure (41).
  8. Actionneur selon la revendication 1,
    caractérisé en ce que
    l'on dispose dans l'induit (9) un bouchon d'étanchéité (15).
  9. Actionneur selon la revendication 8,
    caractérisé en ce que
    l'on dispose dans l'actionneur (1) un canal à trois raccords (78) avec trois ouvertures (81, 84, 87), et
    en ce que le bouchon d'étanchéité (15) ferme hermétiquement, dans chaque position d'extrémité de l'induit (9) une ouverture respective (81, 84) du canal à trois raccords (78).
  10. Actionneur selon la revendication 1,
    caractérisé en ce que
    l'élément de culasse (3) présente pour l'induit (9) une surface de butée (54) dans la direction axiale.
  11. Actionneur selon la revendication 10,
    caractérisé en ce que
    l'induit (9) et l'élément de culasse (3) sont en regard l'un de l'autre en partie dans la direction radiale (18), lorsque l'induit (9) s'applique sur la surface de butée (54).
EP02748309A 2001-03-03 2002-02-28 Actionneur Expired - Lifetime EP1368814B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10110342 2001-03-03
DE10110342A DE10110342A1 (de) 2001-03-03 2001-03-03 Aktuator
PCT/DE2002/000752 WO2002071421A2 (fr) 2001-03-03 2002-02-28 Actionneur

Publications (2)

Publication Number Publication Date
EP1368814A2 EP1368814A2 (fr) 2003-12-10
EP1368814B1 true EP1368814B1 (fr) 2009-02-25

Family

ID=7676240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02748309A Expired - Lifetime EP1368814B1 (fr) 2001-03-03 2002-02-28 Actionneur

Country Status (5)

Country Link
US (1) US6919786B2 (fr)
EP (1) EP1368814B1 (fr)
JP (1) JP4130773B2 (fr)
DE (2) DE10110342A1 (fr)
WO (1) WO2002071421A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20050059U1 (it) * 2005-05-11 2006-11-12 Elbi Int Spa Attuatore elettrico in corrente continua, in particolare per elettrodomestici.
JP5307517B2 (ja) * 2008-11-14 2013-10-02 カヤバ工業株式会社 ソレノイド
CN110525635A (zh) * 2018-05-25 2019-12-03 空中客车德国运营有限责任公司 用于飞行器的机翼和飞行器
US11345459B2 (en) * 2018-05-28 2022-05-31 Airbus Operations Gmbh Wing for an aircraft
US11370526B2 (en) * 2018-05-31 2022-06-28 Airbus Operations Gmbh Latching device for a wing arrangement for an aircraft
US11319054B2 (en) * 2018-05-31 2022-05-03 Airbus Operations Gmbh Wing arrangement for an aircraft
CN110550187A (zh) * 2018-06-01 2019-12-10 空中客车德国运营有限责任公司 用于飞行器的机翼装置和飞行器
EP3587252A1 (fr) * 2018-06-28 2020-01-01 Airbus Operations GmbH Système d'arrêt pour arrêter un premier composant d'aéronef par rapport à un second composant d'aéronef

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH396551A (de) * 1962-10-02 1965-07-31 Wwe Rud Wandfluh Fa Elektromagnet
US5032812A (en) * 1990-03-01 1991-07-16 Automatic Switch Company Solenoid actuator having a magnetic flux sensor
DE4217871A1 (de) * 1992-05-29 1993-12-02 Thomas Magnete Gmbh Elektromagnet mit mit einer Stange versehenem Anker
US5734310A (en) * 1995-08-09 1998-03-31 Borg-Warner Automotive, Inc. Magnetic latching solenoid assembly
US6175291B1 (en) * 1998-12-21 2001-01-16 Dipl- Ing. Wolfgang E. Schultz Electromagnet

Also Published As

Publication number Publication date
DE50213315D1 (de) 2009-04-09
WO2002071421A3 (fr) 2003-04-24
US20030155839A1 (en) 2003-08-21
EP1368814A2 (fr) 2003-12-10
US6919786B2 (en) 2005-07-19
JP2004519109A (ja) 2004-06-24
JP4130773B2 (ja) 2008-08-06
DE10110342A1 (de) 2002-09-12
WO2002071421A2 (fr) 2002-09-12

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