EP2172949A1 - Stellantrieb - Google Patents

Stellantrieb Download PDF

Info

Publication number
EP2172949A1
EP2172949A1 EP08164071A EP08164071A EP2172949A1 EP 2172949 A1 EP2172949 A1 EP 2172949A1 EP 08164071 A EP08164071 A EP 08164071A EP 08164071 A EP08164071 A EP 08164071A EP 2172949 A1 EP2172949 A1 EP 2172949A1
Authority
EP
European Patent Office
Prior art keywords
actuator
housing
pin element
position member
yoke
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.)
Granted
Application number
EP08164071A
Other languages
English (en)
French (fr)
Other versions
EP2172949B1 (de
Inventor
Tom Ocket
Guus Mertens
Hans De Brauwer
Jan Van Cauwenberge
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.)
TE Connectivity Belgium BVBA
Original Assignee
Tyco Electronics Belgium EC BVBA
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 Tyco Electronics Belgium EC BVBA filed Critical Tyco Electronics Belgium EC BVBA
Priority to AT08164071T priority Critical patent/ATE488018T1/de
Priority to DE602008003451T priority patent/DE602008003451D1/de
Priority to EP08164071A priority patent/EP2172949B1/de
Publication of EP2172949A1 publication Critical patent/EP2172949A1/de
Application granted granted Critical
Publication of EP2172949B1 publication Critical patent/EP2172949B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • 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
    • H01F7/081—Magnetic constructions
    • H01F2007/083—External yoke surrounding the coil bobbin, e.g. made of bent magnetic sheet

Definitions

  • the invention relates to an actuator according to claim 1.
  • Actuators are used in various technical fields in order to move movable components.
  • Known actuators comprise a position member and a drive mechanism designed to move the position member.
  • the position member is rotatable around a longitudinal axis of the position member.
  • the objective of the invention is to provide an improved actuator. This objective is achieved by an actuator according to claim 1.
  • an actuator comprises a housing and a drive mechanism arranged therein.
  • the drive mechanism is provided for moving a position member.
  • An outer end of the position member is designed to move a movable component.
  • the actuator further comprises a pin element that projects from the housing.
  • the pin element has a face that is designed to rest against the movable component to prevent a rotation of the movable component.
  • An advantage of this actuator is that an undesired rotation of the position member and the movable component can be prevented.
  • the actuator comprises a metallic yoke and the pin element is part of the metallic yoke. That way, no additional components are needed and no extra assembly process step is necessary for producing the actuator.
  • the metallic yoke is U-shaped with a front section, a lower section and a rear section, wherein the yoke embraces the drive mechanism between the front section and the rear section of the yoke, and the position member is fed through an opening provided in the front section of the yoke.
  • the pin element is connected to the front section of the yoke.
  • the pin element is a metallic pin mounted in the housing of the actuator.
  • the pin element is made of plastic material.
  • the plastic material is polyamide.
  • the plastic material comprises a friction reduction, for example Teflon.
  • the pin element is made in one part with the housing.
  • the pin element is arranged in parallel with the position member.
  • the pin element has a cross-section with the shape of the letter T.
  • Figure 1 shows a sectional drawing of an actuator 100.
  • the actuator 100 comprises a housing 101.
  • the housing 101 may, for example, be made of plastic material.
  • a front surface 107 of the housing 101 comprises an opening 108.
  • a position member 103 is fed through the opening 108 in the front surface 107 of the housing 101, such that a longitudinal axis 130 of the position member 103 is oriented perpendicular to the front surface 107 of the housing 101. In the direction of the longitudinal axis 130 of the position member 103 the position member 103 is partially located inside the housing 101 and partially located outside the housing 101.
  • the position member 103 is rotationally symmetric with respect to the longitudinal axis 130 of the position member 103.
  • the position member 103 may for example comprise a cylindrical shape. In any case, the position member 103 is rotatable around the longitudinal axis 130 of the position member 103.
  • the position member may be made of a metal.
  • the position member 103 may, for example, be an armature of an electromagnet.
  • the position member 103 is movable in the direction of the longitudinal axis 130 of the position member 103.
  • the position member 103 can be moved farther into the housing 101 or farther out of the housing 101.
  • Two discrete positions of the position member 103 may be provided, one farther inside the housing 101, one farther outside the housing 101.
  • the position member 103 may then be movable between the two discrete positions.
  • the position member 103 is encircled by a coil spring 109.
  • One end of the coil spring 109 is connected to or supported by the position member 103, the other end of the coil spring 109 is connected to or supported by the housing 101.
  • the coil spring 109 may support moving the position member 103 into the housing 101 or out of the housing 101.
  • An outer end 105 of the position member 103 may be connected to a movable component in order to move the movable component with the position member 103.
  • An upper surface 121 of the housing 101 comprises a common edge with the front surface 107 of the housing 101. Near this common edge an opening 122 is provided on the upper surface 121 of the housing 101.
  • a pin element 120 is fed through the opening 122 in the upper surface 121 of the housing 101.
  • the pin element 120 may comprise the shape of a cuboid arranged in parallel with the position member 103.
  • the pin element 120 may, for example, be made of a metal.
  • the pin element 120 may comprise a length such that the pin element 120 projects over the position member 103.
  • the housing 101 On a side of the housing 101 that is opposed to the front surface 107, the housing 101 comprises an electrical connector 123.
  • the electrical connector 123 may electrically connect the actuator 100 to an external device to provide the actuator 100 with electric energy and to control movements of the position member 103 of the actuator 100.
  • Figure 2 shows a sectional drawing of the actuator 100 where the actuator 100 is sliced on a plane that is parallel to the longitudinal axis 130 of the position member 103 and perpendicular to the upper surface 121 of the housing 101.
  • the housing 101 houses a drive mechanism 102.
  • the drive mechanism 102 may be an electromagnet. In alternative embodiments, the drive mechanism may be a piezoelectric drive mechanism or another kind of drive mechanism.
  • the drive mechanism 102 comprises a position member guiding 104.
  • the position member guiding 104 houses the position member 103 which may be an armature.
  • the drive mechanism 102 is designed to move the position member 103 in the position member guiding 104 along the longitudinal axis 130 of the position member 103.
  • the drive mechanism 102 may drive the position member 103 to a first position in which the position member 103 protrudes farther out of the housing 101 and to a second position in which the position member 103 protrudes to a lesser extend out of the housing 101.
  • the housing 101 further houses a yoke 110.
  • the yoke 110 may, for example, be made of a metal.
  • the yoke 110 comprises the shape of the letter U with a front section 111, a lower section 112 and a rear section 113.
  • the front section 111 of the yoke 110 is arranged in parallel to the front surface 107 of the housing 101.
  • the lower section 112 of the yoke 110 is arranged in parallel to a lower surface 124 of the housing 101 that is opposed to the upper surface 121 of the housing 101.
  • the yoke 110 embraces the drive mechanism 102 between the front section 111 and the rear section 113 of the yoke 110.
  • the yoke 110 may guide a magnetic field of the drive mechanism 102.
  • the front section 111 of the yoke 110 comprises an opening 114 that is arranged next to the opening 108 of the front surface 107 of the housing 101 such that the opening 108 and the opening 114 provide a common opening.
  • the position member 103 is fed through the opening 108 in the front surface 107 of the housing 101 and the opening 114 on the front section 111 of the yoke 110.
  • the pin element 120 is connected to the front section 111 of the yoke 110. To this end, the front section 111 of the yoke 110 extends through the opening 122 on the upper surface 121 of the housing 101 to form the pin element 120. Outside the housing 101 the pin element 120 extends in parallel to the position member 103.
  • the pin element 120 is made of the same material as the yoke 110. An advantage of this embodiment is that only one member is necessary to form the yoke 110 and the pin element 120.
  • the outer end 105 of the position member 103 is connected to a movable component 106.
  • the outer end 105 of the position member 103 may comprise a smaller diameter than the rest of the position member 103.
  • the movable component 106 may be clipped onto the outer end 105 of the position member 103.
  • the position member 103 may be used to move the movable component 106.
  • the position member 103 is rotatable around the longitudinal axis 130 of the position member 103. Since the movable component 106 is connected to the position member 103, a rotation of the position member 103 leads to a rotation of the movable component 106 around the longitudinal axis 130 of the position member 103 as well.
  • the movable component 106 may also be rotatable around the position member 103.
  • the pin element 120 is provided to prevent a rotation of the movable component 106 and/or the position member 103.
  • the pin element 120 rests against the movable component 106. Since the pin element 120 is fixed on the actuator 100, the pin element 120 resting against the movable component 106 prevents a rotation of the movable component 106.
  • the pin element 120 may, for example, rest against a flat surface of the movable component 106. This may have the advantage of low friction between the pin element 120 and the movable component 106.
  • the pin element 120 may as well be bound in a recess of the movable component 106. This may provide a higher friction between the pin element 120 and the movable component 106 but may allow for a better suppression of a rotation of the movable component 106.
  • the pin element 120 may as well be fed through an opening of the movable component 106. This may suppress a rotation of the movable component 106 even better.
  • Figure 3 displays a perspective view of another embodiment of the actuator 100.
  • the pin element 120 projects from the front surface 107 of the housing 101 of the actuator 100.
  • the pin element 120 is arranged at a position of the front surface 107 of the housing 101 that is near a common edge of the front surface 107 and the lower surface 124 of the housing 101.
  • the pin element 120 comprises a cross-section having the shape of the letter T. This may stabilize the pin element 120 against a bending or skewing the pin element 120.
  • the pin element 120 of figure 3 may, for example, be made of a plastic material.
  • the pin element 120 may, for example, be made of the same material as the housing 101 of the actuator 100. This is depicted in the sectional drawing of figure 4 .
  • the actuator 100 is sliced on a plane that is parallel to the longitudinal axis 130 of the position member 103 and perpendicular to the lower surface 124 of the housing 101.
  • Figure 4 shows that the pin element 120 is connected to the housing 101.
  • An advantage of this embodiment is that for the pin element 120 and the housing 101, only one member is necessary. No additional members or processing steps are necessary for providing the pin element 120.
  • Figure 5 shows a sectional drawing of another embodiment of the actuator 100.
  • the actuator 100 is sliced on a plane that is parallel to the longitudinal axis 130 of the position member 103 and perpendicular to the lower surface 124 of the housing 101.
  • the pin element 120 is assembled into the housing 101 or overmolded into the housing 101.
  • the front surface 107 of the housing 101 comprises an opening 125 that is arranged near a common edge of the front surface 107 and the lower surface 124 of the housing 101.
  • the pin element 120 is fed through the opening 125 in the front surface 107 of the housing 101 and jammed inside the housing 101.
  • the pin element 120 may be made of a metal or a plastic material.
  • the pin element 120 may comprise a ripping arranged at an end of the pin element 120 that is inserted into the housing 101 to support the pin element 120 getting jammed in the housing 101.
  • the pin element may, for example, comprise a cuboid or a cylindrical shape.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Fluid-Damping Devices (AREA)
  • Valve Device For Special Equipments (AREA)
  • Fluid-Driven Valves (AREA)
  • Actuator (AREA)
EP08164071A 2008-09-10 2008-09-10 Stellantrieb Not-in-force EP2172949B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT08164071T ATE488018T1 (de) 2008-09-10 2008-09-10 Stellantrieb
DE602008003451T DE602008003451D1 (de) 2008-09-10 2008-09-10 Stellantrieb
EP08164071A EP2172949B1 (de) 2008-09-10 2008-09-10 Stellantrieb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08164071A EP2172949B1 (de) 2008-09-10 2008-09-10 Stellantrieb

Publications (2)

Publication Number Publication Date
EP2172949A1 true EP2172949A1 (de) 2010-04-07
EP2172949B1 EP2172949B1 (de) 2010-11-10

Family

ID=40332890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08164071A Not-in-force EP2172949B1 (de) 2008-09-10 2008-09-10 Stellantrieb

Country Status (3)

Country Link
EP (1) EP2172949B1 (de)
AT (1) ATE488018T1 (de)
DE (1) DE602008003451D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3611741A1 (de) * 2018-08-13 2020-02-19 Honeywell International Inc. Magnetschalteranker mit drehsicherungsstruktur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2482840A (en) * 1945-07-25 1949-09-27 Bendix Aviat Corp Electric motor brake
US4518939A (en) 1984-04-12 1985-05-21 Regdon Corporation Solenoid with retainer stop
US20020130745A1 (en) 2001-03-17 2002-09-19 Wolfgang Kobow Electromagnet switching device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2482840A (en) * 1945-07-25 1949-09-27 Bendix Aviat Corp Electric motor brake
US4518939A (en) 1984-04-12 1985-05-21 Regdon Corporation Solenoid with retainer stop
US20020130745A1 (en) 2001-03-17 2002-09-19 Wolfgang Kobow Electromagnet switching device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3611741A1 (de) * 2018-08-13 2020-02-19 Honeywell International Inc. Magnetschalteranker mit drehsicherungsstruktur
US10943720B2 (en) 2018-08-13 2021-03-09 Honeywell International Inc. Solenoid including armature anti-rotation structure

Also Published As

Publication number Publication date
ATE488018T1 (de) 2010-11-15
DE602008003451D1 (de) 2010-12-23
EP2172949B1 (de) 2010-11-10

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