WO2011069897A2 - Électroaimant pour régler un élément de positionnement et système de boîtier de collision correspondant - Google Patents

Électroaimant pour régler un élément de positionnement et système de boîtier de collision correspondant Download PDF

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Publication number
WO2011069897A2
WO2011069897A2 PCT/EP2010/068800 EP2010068800W WO2011069897A2 WO 2011069897 A2 WO2011069897 A2 WO 2011069897A2 EP 2010068800 W EP2010068800 W EP 2010068800W WO 2011069897 A2 WO2011069897 A2 WO 2011069897A2
Authority
WO
WIPO (PCT)
Prior art keywords
unit
electromagnet
coil
armature
spring
Prior art date
Application number
PCT/EP2010/068800
Other languages
German (de)
English (en)
Other versions
WO2011069897A3 (fr
Inventor
Willi Nagel
Bernd Goetzelmann
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 WO2011069897A2 publication Critical patent/WO2011069897A2/fr
Publication of WO2011069897A3 publication Critical patent/WO2011069897A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K26/00—Machines adapted to function as torque motors, i.e. to exert a torque when stalled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Definitions

  • the invention relates to an electromagnet for adjusting an actuator according to the preamble of independent claim 1.
  • the electromagnet for adjusting an actuator is known.
  • the electromagnet comprises an energizable coil unit, an armature unit which can be moved by the coil unit from a first end position into a second end position and which is operatively connected to the actuator, and a spring unit for resetting the armature unit from the second end position to the first end position.
  • the electromagnet comprises an armature unit with an armature which is surrounded by a coil unit.
  • the anchor unit includes a locking member engageable by pivoting the armature in a first direction into engagement with the teeth of a gear and pivoting the armature in a second direction out of engagement with the teeth of the gear.
  • a moment is exerted on the armature, which brings the locking element into engagement with the gear or removed from the engagement of the gear.
  • a pivoting movement direction of the armature can be effected by energizing the coil unit and an opposite pivotal movement of the armature can be effected by the spring force of a spring unit.
  • the electromagnet according to the invention with the features of independent claim 1 has the advantage that the armature unit is movable via the at least one spring unit in a starting position lying between the two end positions.
  • two different switching positions can be set with the electromagnet according to the invention from the initial position given by the spring unit.
  • three adjustment positions or switching positions of the armature unit or of the actuator are possible in a simple manner. In this way, short adjustment times of the armature unit or of the actuator can be achieved, wherein the electromagnet according to the invention can be advantageously exposed to high accelerations.
  • the armature unit comprises a pivotable about an axis anchor ring.
  • the coil unit comprises a coil ring arranged within the anchor ring.
  • electromagnet In a further embodiment of the electromagnet according to the invention four spaced-apart coils are arranged on the coil ring. In this case, in each case two essentially oppositely located coils can move the armature unit into a respective first end position or a second end position. In an advantageous manner, two different switching positions can thereby be switched in the reverse direction of rotation from the starting position, resulting in small adjustment times of the actuator. This results in a simple and inexpensive electromagnet, which can switch in two directions and at the same time can be exposed to high accelerations. In front Partially, the rapidly changing accelerations have no influence on the function and on the adjustment times of the actuator.
  • the coil ring is designed as a ferromagnetic core element.
  • a particularly good effect of the energized coil ring can be achieved by an electrically conductive material made of ferromagnetic steel.
  • the coil ring may for example be attached to the housing of the electromagnet.
  • the at least one spring unit comprises a leaf spring which is arranged in a slot extending in the anchor ring and in the coil ring.
  • the leaf spring is fixed in its center on the coil ring.
  • the at least one spring unit is attached to a housing fixed to the coil ring of the electromagnet and engages tangentially and / or radially from the outside and / or inside of the armature unit.
  • this embodiment allows a free space within the annular stator.
  • individual springs of the spring unit are arranged symmetrically axially to the armature unit, whereby transverse forces can be avoided on the armature unit during operation of the electromagnet when moving the armature unit by the coil unit.
  • the electromagnet according to the invention can be used for example as part of a crash box system of a motor vehicle in order to change the properties of the crash box system before and / or during an impact.
  • An embodiment of the invention is illustrated in the drawings and will be explained in more detail in the following description.
  • FIG. 1 shows a plan view of an electromagnet according to the invention with a coil unit, a spring unit and an armature unit in a starting position lying between a first end position and a second end position.
  • FIG. 2 shows the electromagnet from FIG. 1 with the armature unit in the first end position.
  • FIG. 3 shows the electromagnet from FIG. 1 with the armature unit in the second end position.
  • Figs. 1 to 3 show an electromagnet 10 for adjusting an actuator, not shown here.
  • the electromagnet 10 comprises an energizable coil unit 12, an armature unit 18 and at least one spring unit 20.
  • the coil unit 12 is designed as a stator and the armature unit 18 as a rotor of the electromagnet 10.
  • the coil unit 12 moves the armature unit 18 between two end positions 14, 16, a first end position 14 in FIG. 2 and a second end position 16 in FIG. 3 being illustrated.
  • the armature unit 18 is operatively connected to the actuator.
  • the at least one spring unit 20 is provided for resetting the armature unit 18.
  • the armature unit 18 via the at least one spring unit 20 in a lying between the two end positions 14, 16 starting position 30 is movable.
  • the armature unit 18 comprises an armature ring 24 pivotable about an axis 22 perpendicular to the plane of the sheet, and the coil unit 12 comprises a coil ring 26 arranged in the armature ring 24.
  • the coil ring 26 is fastened to a housing of the electromagnet 10, not shown here.
  • the coil ring 26 as ferromag- executed netic core element.
  • the armature unit 18 or the anchor ring 24 are rotatably or rotatably mounted in the housing of the electromagnet 10 or on the coil ring 26 of the coil unit 12, which is not apparent from the drawings.
  • coils 28a, 28b, 28c, 28c are arranged on the coil ring 26, wherein these are preferably arranged symmetrically to the two axes of symmetry of the coil ring 26.
  • Two each of the substantially opposite coils 28a, 28c; 28b, 28d move the armature unit 18 into respectively the first end position 14 and the second end position 16.
  • the at least one spring unit 20 comprises a leaf spring, which is arranged in a slot 32 extending in the anchor ring 24 and in the coil ring 26.
  • the leaf spring 20 is secured in its center 34 on the coil ring 26.
  • the at least one spring unit 20 may be fastened to the housing of the electromagnet fixed to the coil ring 26 and engage tangentially and / or radially from outside and / or inside the armature unit 18.
  • the at least one spring unit 20 as a leaf spring, a spiral spring, a torsion spring and / or a coil spring as a spring unit 20 is conceivable. If, for example, the space within the annular coil unit 12 remains free, then, for example, several spring units 20 designed as helical springs offer tangential engagement with the anchor unit 18 and are fastened to the housing of the electromagnet 10 fixed to the coil unit 12.
  • the anchor unit 18 can retract to its initial position 30.
  • the spring units 20 are arranged symmetrically axially to the armature unit 18, whereby during operation of the electromagnet 10 when moving the armature unit 18 through the coil unit
  • FIG. 1 shows the electromagnet 10 according to the invention in the rest position, wherein the armature unit 18 is in its initial position 30. As long as the coils 28a, 28b, 28c, 28d are not energized, the armature unit 18 is held by the spring unit 20 in its starting position 30.
  • the solenoid 10 is activated or the coils 28a, 28c or 28b, 28d are energized, whereby the armature unit 18 is located in one of the two end positions 14 or 16. If the coils 28a, 28c are energized and the coils 28b, 28d remain de-energized, the armature unit 18, as shown in FIG. 2, rotates to the right into its first end position 14 up to an end stop (not illustrated here). Thus, the armature unit 18 returns to its starting position 30 by the spring force applied by the spring unit 20. When the coils 28b, 28d are energized exclusively, the armature unit 18 correspondingly rotates in the opposite direction to its second end stop (not shown) to the left into its second end position 16. If the current is withdrawn, the armature unit 18 returns through the spring force applied by the spring unit 20 back to their starting position 30.
  • the electromagnet 10 according to the invention can be used for example as part of a crash box system of a motor vehicle, wherein the properties of the crash box system can be selectively changed by the actuator coupled to the armature unit 18.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

L'invention concerne un électroaimant (10) pour le réglage d'un élément de positionnement avec une unité de bobine (12) pouvant être alimentée en courant, une unité d'induit (18) déplaçable à travers l'unité de bobine (12) entre deux positions extrêmes (14), qui est en liaison active avec l'élément de positionnement, et au moins une unité à ressort (20) pour le rappel de l'unité d'induit (18) et un système de boîtier de collision associé pour un véhicule automobile doté d'un tel électroaimant (10). Selon l'invention, l'unité d'induit (18) peut être déplacée au moyen de la au moins une unité à ressort (20) dans une position de départ (30) située entre les deux positions extrêmes (14).
PCT/EP2010/068800 2009-12-07 2010-12-03 Électroaimant pour régler un élément de positionnement et système de boîtier de collision correspondant WO2011069897A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047597.4 2009-12-07
DE200910047597 DE102009047597A1 (de) 2009-12-07 2009-12-07 Elektromagnet zum Verstellen eines Stellglieds und korrespondierendes Crashboxsystem

Publications (2)

Publication Number Publication Date
WO2011069897A2 true WO2011069897A2 (fr) 2011-06-16
WO2011069897A3 WO2011069897A3 (fr) 2012-03-01

Family

ID=43618312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068800 WO2011069897A2 (fr) 2009-12-07 2010-12-03 Électroaimant pour régler un élément de positionnement et système de boîtier de collision correspondant

Country Status (2)

Country Link
DE (1) DE102009047597A1 (fr)
WO (1) WO2011069897A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013203133A1 (de) * 2013-02-26 2014-08-28 Schaeffler Technologies Gmbh & Co. Kg Aktoreinheit mit Rotationsstelleinrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006000746A1 (de) 2006-01-04 2007-07-05 Robert Bosch Gmbh Schaltbarer Freilauf und elektromechanische Fahrzeugbremse mit dem schaltbaren Freilauf
DE102006031508A1 (de) 2006-07-07 2008-01-17 Robert Bosch Gmbh Elektromechanisch schaltbarer, formschlüssiger Freilauf, elektromechanische Bremse für ein Kraftfahrzeug mit einem solchen Freilauf und Verfahren zur Lüftspieleinstellung einer solchen Bremse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507634A (en) * 1983-04-28 1985-03-26 Pneumo Corporation Force motor with null centering and null position bias
JP3887343B2 (ja) * 2003-04-03 2007-02-28 ミネベア株式会社 ロータリーアクチュエータ
KR100529946B1 (ko) * 2004-01-29 2005-11-22 엘지전자 주식회사 회전공진형 모터

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006000746A1 (de) 2006-01-04 2007-07-05 Robert Bosch Gmbh Schaltbarer Freilauf und elektromechanische Fahrzeugbremse mit dem schaltbaren Freilauf
DE102006031508A1 (de) 2006-07-07 2008-01-17 Robert Bosch Gmbh Elektromechanisch schaltbarer, formschlüssiger Freilauf, elektromechanische Bremse für ein Kraftfahrzeug mit einem solchen Freilauf und Verfahren zur Lüftspieleinstellung einer solchen Bremse

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Publication number Publication date
WO2011069897A3 (fr) 2012-03-01
DE102009047597A1 (de) 2011-06-09

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