[go: up one dir, main page]

EP1665295B1 - Actionneur electromagnetique a forces initiale et de verrouillage ameliorees - Google Patents

Actionneur electromagnetique a forces initiale et de verrouillage ameliorees Download PDF

Info

Publication number
EP1665295B1
EP1665295B1 EP04783399A EP04783399A EP1665295B1 EP 1665295 B1 EP1665295 B1 EP 1665295B1 EP 04783399 A EP04783399 A EP 04783399A EP 04783399 A EP04783399 A EP 04783399A EP 1665295 B1 EP1665295 B1 EP 1665295B1
Authority
EP
European Patent Office
Prior art keywords
armature
gap
electromagnetic actuator
extension member
shaft
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
EP04783399A
Other languages
German (de)
English (en)
Other versions
EP1665295A1 (fr
Inventor
Arthur Lanni
Marty L. Trivette
V. R. Ramanan
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.)
ABB Technology AG
Original Assignee
ABB Technology AG
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 ABB Technology AG filed Critical ABB Technology AG
Publication of EP1665295A1 publication Critical patent/EP1665295A1/fr
Application granted granted Critical
Publication of EP1665295B1 publication Critical patent/EP1665295B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01F7/1638—Armatures not 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
    • H01F7/081—Magnetic constructions
    • 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
    • H01F2007/086—Structural details of the armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • 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
    • H01F7/124—Guiding or setting position of armatures, e.g. retaining armatures in their end position by mechanical latch, e.g. detent

Definitions

  • the invention relates to electromagnetic actuators, and more particularly, to high initial force electromagnetic actuators.
  • An electromagnetic actuator is a device that converts electrical energy into mechanical movement. It consists primarily of two parts, a solenoid coil and an armature. Generally, the coil is formed from wire that has been wound into a cylindrical shape. The armature is typically mounted to move or slide axially with respect to the cylindrically shaped coil. An electrical signal applied to the coil generates an electromagnetic field that imparts a force on the armature, thereby causing the armature to move.
  • An electromagnetic actuator may be used to actuate a mechanism, for example, a valve, a circuit breaker, a recloser, a switchgear, and the like.
  • a mechanism for example, a valve, a circuit breaker, a recloser, a switchgear, and the like.
  • Each mechanism needs a certain amount of force to operate the mechanism.
  • many of the mechanisms have a limited amount of space to contain the electromagnetic actuator and therefore, electromagnetic actuators are often designed to have a low profile to fit into a limited amount of space. Often, such low profile actuators cannot provide enough force to actuate the mechanism.
  • An example of a prior art solution is described in patent US 5,110, 087 which discloses an electromagnetic actuator having an armature which forms a first gap FF with a flange.
  • the armature forms also a second gap RR with a housing and a third gap GG with a lateral surface of the flange itself.
  • the second gap RR and the third gap GG
  • the invention is directed to an electromagnetic actuator having an increased initial force and improved latching force.
  • an electromagnetic actuator in accordance with one aspect of the present invention, includes a housing defining a cavity, a shaft, a solenoid coil, a clamp surface, an armature and an extension member.
  • the shaft extends through the housing and has a longitudinal axis.
  • the solenoid coil is disposed in the cavity of the housing and has a center axis that is substantially coaxial with the longitudinal axis of the shaft.
  • the armature is secured to the shaft and extends radially outward from the shaft to an outer peripheral surface. The armature is positioned such that the clamp surface is disposed between the solenoid coil and the armature.
  • the armature is movable between a first position disposed proximate to the clamp surface and a second position disposed distal to the clamp surface.
  • the first gap has a width in the direction of the longitudinal axis of the shaft.
  • the extension member extends in the direction of the longitudinal axis of the shaft to delimit the first gap in a direction radially outward from the longitudinal axis of the shaft.
  • the extension forms a second gap with the housing or the armature.
  • the second gap has a plurality of different widths that extend in directions radially outward from the longitudinal axis of the shaft. These widths are all smaller than the width of the first gap.
  • Figure 1 is a cut-away view of an illustrative electromagnetic actuator in the open position, in accordance with an embodiment of the invention
  • Figure 2 is a cut-away view of the actuator of Figure 1 in the closed position
  • Figure 3 is a cut-away view of a portion of another illustrative electromagnetic actuator, in accordance with another embodiment of the invention.
  • Figure 4 is a cut-away view of a portion of another illustrative electromagnetic actuator, in accordance with another embodiment of the invention.
  • Figure 5 is a cut-away view of a portion of yet another illustrative electromagnetic actuator, in accordance with another embodiment of the invention.
  • Figure 6 is a cut-away view of another illustrative electromagnetic actuator
  • Fig. 7 is a cut-away view of another illustrative electromagnetic actuator, wherein an armature of the actuator is in a second position;
  • Fig. 8 is a cut-away view of the electromagnetic actuator of Fig. 7 , wherein the armature of the actuator is in a first position;
  • Fig. 9 is a cut-away view of another illustrative electromagnetic actuator*
  • Fig. 10 is a cut-away view of another illustrative electromagnetic actuator
  • Fig. 11 is a cut-away view of another illustrative electromagnetic actuator in accordance with another embodiment of the invention.
  • Fig. 12 is a close-up view of a portion of the electromagnetic actuator of Fig. 11 .
  • the invention is directed to an electromagnetic actuator having an increased initial force.
  • Figure 1 is a cut-away view of an illustrative electromagnetic actuator in the open position, in accordance with an embodiment of the invention.
  • actuator 30 comprises a solenoid coil 5, a shaft 8, an armature 7, and a housing 20.
  • Solenoid coil 5 comprises a conductor wound into a cylindrical shape and lead wires (not shown) for connection of electrical power to the conductor. Connection of electrical power to solenoid coil 5 creates a magnetic field that exerts a force on some materials. The greater the number of conductor turns wound in solenoid coil 5, the greater the force exerted when the solenoid coil is energized. The direction of force depends on the polarity of electrical power applied to the lead wires. For example, applying positive voltage to the leads may result in an upward force on armature 7 and applying negative voltage may result in a downward force on armature 7. The strength of the force also depends on the stroke of armature 7. That is, when armature 7 is located distal of solenoid coil 5, the electromagnetic force on armature 7 is weaker than when armature 7 is proximate solenoid coil 5.
  • solenoid coil 5 is disposed between a base plate 11 and a clamp plate 3 and within a cavity defined by housing 20.
  • Base plate 11 is substantially planar, however, base plate 11 may be any shape that secures solenoid coil 5 within housing 20.
  • Base plate 11 comprises threaded holes for receiving fasteners 10 for securing clamp plate 3 and housing 20 to base plate 11; however, other fastening techniques are contemplated.
  • Base plate 11 has a passage for receiving shaft 8; however, such passage may not be included if shaft 8 does not extend past base plate 11.
  • Base plate 11 extends beyond housing 20 for mounting electromagnetic actuator 30 to another device, such as for example, a valve, a circuit breaker, a recloser, a switchgear, and the like.
  • Base plate 11 has holes for fasteners 12 and fasteners 13. While fasteners 12 and 13 are illustrated as countersunk screws and socket head screws, respectively, other fasteners and other mounting techniques are contemplated.
  • Core 1 comprises magnetically permeable material and is substantially annular shaped.
  • Core 1 has an annular recess for receiving solenoid coil 5 and an axial passage for receiving a bushing 4; however, core 1 may be any shape to provide a magnetic circuit for solenoid coil 5.
  • Core 1 has through-holes for receiving fasteners 10; however, core 1 may not include through-holes if fasteners 10 are located outside of core 1.
  • Core 1 is disposed on base plate 11 with its axial passage aligned with the passage of base plate 11 and with its through holes aligned with the threaded holes of base plate 11.
  • Permanent magnet 2 is substantially annularly shaped and has an axial passage for bushing 4; however, permanent magnet 2 may be any suitable shape. Permanent magnet 2 is aligned such that its magnetic poles provide a magnetic force biasing armature 7 towards solenoid coil 5. The force is strongest when permanent magnet 2 is proximate armature 7 and weakest when permanent magnet 2 is distal of armature 7. Permanent magnet 2 is disposed on core 1, typically proximate armature 7 to provide increased magnetic force on armature 7. Permanent magnet 2 is used with one technique for stroking actuator 30 but may be omitted with other techniques, as described in more detail below.
  • Housing 20 is substantially annularly shaped and defines a cavity that contains core 1, solenoid coil 5, permanent magnet 2, clamp plate 3, and bushing 4. Housing 20 has through-holes corresponding to the through-holes of core 1 for receiving fasteners 10. Housing 20 is disposed on core 1 with its through-holes aligned with the through-holes of core 1. Housing 20 comprises a substantially annular extension member 21 extending in an axial direction towards armature 7 and beyond solenoid coil 5 and clamp plate 3. Housing 20 and extension member 21 may be any suitable shape that can define a gap with armature 7, as described in more detail below. Extension member 21 may be integrally formed with housing 20 or may be a separate piece attached to housing 20.
  • Extension member 21 is composed of a magnetically permeable material and defines an annular inner surface 26. Extension member 21 provides increased initial magnetic force on armature 7, as described in more detail below.
  • Clamp plate 3 is substantially annularly shaped and has through-holes corresponding to the through holes of housing 20 and an axial passage corresponding to the passage of permanent magnet 2.
  • Clamp plate 3 may be any suitable shape and may utilize any fastening technique for securing permanent magnet 2, solenoid coil 5, and core 1 within housing 20.
  • Fasteners 10, shown as socket head cap screws, are disposed through the through-holes of clamp plate 3, the through-holes of housing 20, the through-holes of core 1, and are threaded into the threaded holes of base plate 11.
  • Bushing 4 is substantially cylindrically shaped and is disposed in the passage of core 1, the passage of permanent magnet 2, and the passage of clamp plate 3. Bushing 4 secures shaft 8 such that shaft 8 may move axially.
  • Shaft 8 is substantially cylindrically shaped and is disposed in bushing 4.
  • Shaft 8 comprises a shaft collar 23 at one end of shaft and threads 24 on the other end of shaft 8.
  • Shaft collar 23 is proximate core 1 and is larger than the passage of core 1 and therefore, limits the axial travel of shaft 8 in one direction.
  • Threads 24 are distal of core 1 and mate with a fastener 14 to limit the axial travel of shaft 8 in the other direction.
  • Fastener 14 is shown as a hex nut engaged to threads 24; however, other fastening techniques are contemplated.
  • Spring 9 is disposed over shaft 8 between clamp plate 3 and armature 7. Spring 9 is under compression and therefore biases armature 7 away from solenoid coil 5. Spring 9 is sized depending on the technique used for stroking actuator 30, as described in more detail below.
  • Armature 7 comprises magnetically permeable material and has an outer surface 25. Outer surface 25 may be substantially annularly shaped or may be any other shape suitable for defining a gap with the inner surface of extension member 21. Armature 7 has a passage that receives shaft 8 and is disposed substantially coaxially with solenoid coil 5. Armature 7 is secured to shaft 8 via fastener 14; however, armature 7 may be secured to shaft 8 with other techniques, such as welding and the like. Armature 7 has a cylindrical recess that receives spring 9; however, it is contemplated that armature 7 may not include a recess.
  • Figure 1 illustrates electromagnetic actuator 30 in the open position (i.e., armature 7 is located distal of solenoid coil 5) with no power, being delivered to solenoid coil 5.
  • armature 7 and the body of housing 20 define a gap having a width D1.
  • the outer surface 25 of armature 7 is located a distance D2 from inner surface 26 of housing extension member 21, thereby defining an annular air gap 27 having a width D2.
  • Width D2 is less than width D1, thereby increasing initial force, as described in more detail below.
  • a magnetic force acts on armature 7, pulling armature 7 towards solenoid coil 5.
  • a magnetic circuit exists around a cross section of solenoid coil 5. That is, a magnetic circuit exists from core 1, through housing 20, housing extension member 21, across air gap 27, through armature 7, across the air gap having width D1, through clamp plate 3 and permanent magnet 2, and back to core 1.
  • the magnetic circuit provides a path for the magnetic flux to create a magnetic force on armature 7.
  • the magnetic force from energized solenoid coil 5 is stronger than the force applied by spring 9 and therefore, armature 7 moves to the closed position, which is illustrated in Figure 2 .
  • extension member 21 extends beyond clamp plate 3 and defines a small annular air gap 27, rather than a large air gap (e.g., an air gap having a width D1), armature 7 moves towards solenoid coil 5 with a higher initial force. As such, electromagnetic actuator 30 may actuate larger mechanisms than if actuator 30 did not have extension member 21. As such, the same size solenoid coil and armature can actuate a larger mechanism than otherwise possible. Extension member 21, therefore, can increase the force delivered by electromagnetic actuator 30 without significantly increasing the space taken by actuator 30.
  • armature 7 remains in the closed position until another force acts on armature 7. Armature 7 remains in the closed position because permanent magnet 2 is now located proximate armature 7 and therefore, exerts a larger force than the opposing force exerted by spring 9. As such, even if power is removed from solenoid coil 5, armature 7 remains in the closed position.
  • an opposite direction current may be placed on solenoid coil 5.
  • Such current creates a magnetic field that exerts an upward magnetic force on armature 7 that is greater than the downward magnetic force from permanent magnet 2, thereby returning armature 7 to the open position.
  • Armature 7 remains in the open position because permanent magnet 2 is now located distal of armature 7 and therefore, exerts a smaller force than the opposing force exerted by spring 9. As such, even if power is removed from solenoid coil 5, armature 7 remains in the open position.
  • the initial force is 305 N.
  • the initial force increases to 563 N.
  • armature 7 may have a substantially constant acceleration, thereby resulting in consistent closing times, which is important in some actuator applications.
  • the force-displacement curve over the stroke of the actuator may be controlled by varying the shape of air gap 27, for example by varying the length and shape of the extension member.
  • the width of gap 27 can increase with increasing distance from clamp plate 3, such as shown in Figure 3 .
  • extension member 21' extends from housing 20'.
  • Extension member 21' has an inner annular surface 26"that forms an annular air gap 27'.
  • Air gap 27' becomes wider as the distance from clamp plate 3 increases. With such an air gap, the initial force is less than that of Figure 1 , but increases faster with increasing armature 7 stroke.
  • Figure 4 shows another actuator 30". As shown, extension member 21" extends from housing 20". Extension member 21" has an inner annular surface 26" that forms an annular air gap 27". Air gap 27" becomes narrower as the distance from clamp plate 3 increases. While linearly increasing and decreasing air gaps are illustrated, other shaped air gaps are also contemplated, such as for example, curved, saw-tooth shaped, square, and the like.
  • the outer surface 25 of the armature 7 is non-parallel to the inner annular surface (26', 26") of the extension member(21', 21"), which provides the air gap (27', 27") with different widths.
  • the outer surface 25 of the armature 7 is parallel with the longitudinal axis of the shaft 8 and the inner annular surface (26', 26") of the extension member (21', 21") is non-parallel with the longitudinal axis of the shaft 8.
  • stroking actuator 30 other techniques for stroking actuator 30 are contemplated.
  • permanent magnet 2 is not required for the operation of actuator 30. If permanent magnet 2 is not included in actuator 30, power is continuously applied to solenoid coil 5 to maintain actuator 30 in the closed position.
  • spring 9 is in tension and biases armature 7 towards solenoid coil 5.
  • FIG. 5 shows a portion of another illustrative electromagnetic actuator 50 that is similar to electromagnetic actuator 30.
  • electromagnetic actuator 50 comprises a housing 70 and a clamp plate 53.
  • Clamp plate 53 is similar to clamp plate 3 of Figure 1 .
  • Housing 70 is similar to housing 20 of Figure 1 ; however, in this embodiment, housing 70 does not have an extension member. Rather, in this embodiment, an actuator 57 comprises an extension member 58.
  • the extension member 58 may be integrally formed with the armature 57 or may be a separate piece attached to the armature 57. Such attachment may be, for example, a weld, an adhesive, a fastener, or the like.
  • a gap 59 is formed between an interior surface 58a of the extension member 58 and an outer peripheral surface 70a of the housing 70.
  • a recess 80 is formed in the outer peripheral surface 70a of the housing 70 and helps define the gap 59. In this manner, the recess 80 increases the width of the gap 59 so as to be greater than the width of the remaining portion of the gap 59.
  • the magnetic flux lines generated by the solenoid coil are concentrated in the region of the gap 59, thereby increasing the initial force on armature 57.
  • recess 80 other recesses may be formed in the outer peripheral surface 70a of the housing 70.
  • the outer peripheral surface 70a of the housing 70 may be provided with one or more protrusions.
  • a recess (such as recess 80) or a protrusion creates an irregularity in the outer peripheral surface 70a that concentrates the magnetic flux by channeling the flux to a particular location.
  • the irregularity (such as recess 80) in the outer peripheral surface 70a of the housing one or more irregularities may be formed in the interior surface 58a of the extension member 58.
  • one or more recesses and/or one or more protrusions may be formed in the interior surface 58a of the extension member 58.
  • irregularities may be formed in the armatures and/or extensions of the other actuator embodiments disclosed herein.
  • FIG. 6 shows another illustrative electromagnetic actuator.
  • electromagnetic actuator 60 comprises a housing 61, an armature 65, and a solenoid coil 82.
  • Solenoid coil 82 is similar to solenoid coil 5 of Figure 1 . As shown, solenoid coil 82 is disposed within a cavity 83 defined by housing 61.
  • Electromagnetic actuator 60 also comprises a permanent magnet 71.
  • Permanent magnet 71 is substantially annularly shaped and has an axial passage for armature 65; however, permanent magnet 71 may be any suitable shape. Permanent magnet 71 is aligned such that its magnetic poles provide a magnetic force biasing armature 65. Permanent magnet 71 is used with one technique for stroking actuator 60, but may be omitted with other techniques.
  • Armature 65 comprises magnetically permeable material and a protrusion or extension member 66.
  • Extension member 66 extends toward an end cap 63 of housing 61, thereby defining a gap between extension member 66 and housing 61. The gap is less than would otherwise exist and increases the initial force of electromagnetic actuator 60, as described above.
  • Extension member 66 is cylindrical and may be integrally formed with armature 65 or may be a separate piece attached to armature 65.
  • Armature 65 is substantially cylindrically shaped and is disposed radially inward of the solenoid coil 82; however armature 65 may be any shape to cooperate with solenoid coil 82 to produce axial motion.
  • Armature 65 is disposed between end caps 63 and 64 of housing 61. End caps 63 and 64 limit the axial travel of armature 65.
  • the armature 65 includes opposing first and second ends 65a, 65b.
  • the first end 65a includes an annular surface 67 disposed around the extension member 66.
  • the extension member 66 extends away from the annular surface 67 and includes an end surface 66a.
  • the annular surface 67 and the end surface 66a comprise two non-coplanar surfaces of the first end 65a of the armature 65, with the annular surface 67 being disposed closer to the second end 65b of the armature 65 than the end surface 66a.
  • the annular surface 67 and the end surface 66a are parallel to each other.
  • Housing 61 is substantially annularly shaped and defines the cavity 83 that contains solenoid coil 82, permanent magnet 71, and armature 65. Housing 61 also comprises the end caps 63 and 64 that substantially enclose armature 65.
  • the end cap 63 has an annular surface 63a that is disposed around a recess 62 for receiving extension member 66 of armature 65.
  • the recess 62 is cylindrical and is partially defined by a recessed interior surface 84 that is disposed farther away from the armature 65 than the annular surface 63a. In this manner, the annular surface 63a and the interior surface 84 are non-coplanar.
  • Housing 61 and recess 62 may be any suitable shape that can cooperate with extension member 66 of armature 65. In other embodiments, housing 61 may comprise an extension member and armature 65 may comprise a recess for receiving the extension member.
  • the armature 65 is movable between a first position disposed proximate to the end cap 63 of the housing 61 and a second position disposed distal to the end cap 63 of the housing.
  • the extension member 66 of the armature 65 is disposed in the recess 62 of the end cap 63.
  • the annular surface 63a of the end cap 63 is disposed closer to the second end 65b of the armature 65 than the end surface 66a of the extension member 66.
  • the extension member 66 is spaced from the end cap 63.
  • the irregular configuration of the first end 65a of the armature 65 and the end cap 63 concentrates the magnetic flux by channeling the flux into the recess 62, thereby increasing the initial force of the actuator 60.
  • Figs. 7 and 8 there is shown an actuator 86 having substantially the same construction and operation as the actuator 60, except for the differences set forth below. Due to the similarity of construction, components of the actuator 86 that are substantially the same as in the actuator 60 will have the same reference numerals. Instead of having only one extension member 66 extending from the armature 65 and only one recess 62 in the end cap 63, as in the actuator 60, the actuator 86 has a pair of extension members 66 extending from the armature 65 and a pair of recesses 62 in the end cap 63.
  • a rod 88 is secured to the armature 65 and extends from the second end 65b thereof and a rod 90 is secured to the armature 65 and extends from the first end 65a thereof.
  • the two extension members 66 define a valley 92 therebetween, through which the rod 90 extends.
  • the recesses 62 in the end cap 63 form a protrusion 94 through which the rod 90 extends.
  • the protrusion 94 has an end surface 94a, while the valley 92 is partially defined by an inner surface 96. Since there are two recesses 62 in the end cap 63, the surface 63a is not annular, but is, instead irregularly shaped.
  • the surface 63a includes the end surface 94a.
  • the extension members 66 of the armature 65 are disposed in the recesses 62 of the end cap 63.
  • the protrusion 94 of the end cap 63 is disposed in the valley 92.
  • the surface 63a of the end cap 63 is disposed closer to the second end 65b of the armature 65 than the end surfaces 66a of the extension members 66.
  • the extension members 66 are spaced from the end cap 63.
  • the recesses 62 and the extension members 66 are configured such that when the armature 65 is in the first position and the extension members 66 are disposed in the recesses 62 and the protrusion 94 is disposed in the valley 92, there are gaps between the interior surfaces 84 and the end surfaces 66a and a gap between the inner surface 96 in the valley 92 and the end surface 94a of the protrusion 94. Each of these gaps is preferably about 0.005 inches. It has been found that contaminants (such as metal particles) that may enter or form in the cavity 83 during the operation of the actuator 86 collect in the valley 92. It is believed that the collection of contaminants in the valley 92 improves the latching strength between the armature 65 and the end cap 63. Moreover, the irregular configuration of the first end 65a of the armature 65 and the end cap 63 concentrates the magnetic flux by channeling the flux into the recesses 62, thereby increasing the initial force of the actuator 86.
  • FIG. 9 there is shown an actuator 97 having substantially the same construction and operation as the actuator 60, except for the differences set forth below. Due to the similarity of construction, components of the actuator 97 that are substantially the same as in the actuator 60 will have the same reference numerals.
  • a rod 98 is secured to the armature 65 and extends from the second end 65b thereof and a rod 100 is secured to the armature 65. The rod 100 extends through the recess 62 and the extension member 66.
  • Fig.10 there is shown an actuator 104 having substantially the same construction and operation as the actuator 60, except for the differences set forth below. Due to the similarity of construction, components of the actuator 104 that are substantially the same as in the actuator 60 will have the same reference numerals.
  • the actuator 104 does not have the cylindrical extension member 66 and the cylindrical recess 62, as in the actuator 60. Instead, the armature 65 of the actuator 104 has a frusto-conical protrusion 110 and the end cap 63 has a corresponding frusto-conical recess 112.
  • the protrusion 110 has a frusto-conical outer surface 110a, while the recess 112 is defined by a frusto-conical interior surface 114.
  • a rod 106 is secured to the armature 65 and extends from the second end 65b thereof and a rod 108 is secured to the armature 65 and extends from the first end 65a thereof.
  • the rod 108 extends through the recess 112 and the protrusion 110.
  • the protrusion 110 of the armature 65 is disposed in the recess 112 of the end cap 63, with a small gap being formed between the outer surface 110a of the protrusion 110 and the interior surface 114 of the recess 112.
  • the protrusion 110 is spaced from the end cap 63.
  • Figs. 11 and 12 there is shown an actuator 118 having substantially the same construction and operation as the actuator 30, except for the differences set forth below. Due to the similarity of construction, components of the actuator 118 that are *substantially the same as in the actuator 30 will have the same reference numerals.
  • the actuator 118 does not have the extension member 21, as in the actuator 30. Instead, the actuator 118 has an annular extension member 120 with an interior surface 122 and an exterior surface 123.
  • the armature 7 does not have the outer surface 25, as in the actuator 30. Instead, the armature 7 has an outer peripheral surface 124.
  • the interior surface 122 of the extension member 120 slopes slightly outward as it exends downwardly from an upper rim of the extension member 120 toward the clamp plate 3. As a result, in a plane extending in a direction radially outward from the longitudinal axis of the shaft 8, the interior surface 122 of the extension member 120 is non-parallel to the exterior surface 123 of the extension member 120 and to the longitudinal axis of the shaft 8.
  • the outer peripheral surface 124 of the armature 7 also slopes slightly outward as it extends downwardly toward the clamp plate 3. As a result, in a plane extending in a direction radially outward from the longitudinal axis of the shaft 8, the outer peripheral surface 124 of the armature 7 is non-parallel to the longitudinal axis of the shaft 8.
  • the outer peripheral surface 124 of the armature 7, however, is parallel to the interior surface 122 of the extension member 120.
  • the outer peripheral surface 124 of the armature 7 cooperates with the interior surface 122 of the extension member 120 to define
  • a notch or recess 128 is formed in the outer peripheral surface 124 of the armature 7, toward a lower corner of the armature 7.
  • the recess 128 extends radially inward toward the longitudinal axis of the shaft 8 and helps define the gap 126. In this manner, the recess 128 increases the width of the gap 126 so as to be greater than the width of the remaining portion of the gap 126.
  • the outward slope of the interior surface 122 of the extension member 120 helps to channel magnetic flux into the recess 128, thereby increasing the initial force of the actuator 118.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Vehicle Body Suspensions (AREA)
  • Lock And Its Accessories (AREA)

Claims (14)

  1. Actionneur électromagnétique (30, 30', 30'', 50, 118) comportant :
    un boîtier (20, 20', 20", 70) définissant une cavité ; un arbre (8) s'étendant à travers le boîtier (20, 20', 20", 70) et présentant un axe longitudinal ;
    une bobine solénoïde (5) disposée dans la cavité du boîtier (20, 20', 20 ", 70) et présentant un axe de symétrie sensiblement coaxial à l'axe longitudinal de l'arbre (8) ;
    une surface (3, 53) de serrage ;
    une armature (7, 57) fixée à l'arbre (8) et s'étendant radialement vers l'extérieur, de l'arbre (8) à une surface périphérique extérieure, ladite armature (7, 57) étant positionnée de telle sorte que la surface (3, 53) de serrage soit disposée entre la bobine solénoïde (5) et l'armature (7, 57) et ladite armature (7, 57) pouvant être déplacée entre une première position à proximité de la surface (3, 53) de serrage et une deuxième position distale par rapport à la surface (3, 53) de serrage, l'armature (7, 57) et la surface (3, 53) de serrage définissant entre elles un premier interstice lorsque l'armature (7, 57) est dans la deuxième position, ledit premier interstice présentant une largeur (D1) dans la direction de l'axe longitudinal de l'arbre (8) ; et
    un élément prolongateur (21, 21', 21", 58, 120) s'étendant dans la direction de l'axe longitudinal de l'arbre (8) pour délimiter le premier interstice radialement en direction de l'extérieur à partir de l'axe longitudinal de l'arbre (8), ledit élément prolongateur (21, 21', 21", 58, 120) formant un deuxième interstice (27, 27', 27" , 59, 126) avec le boîtier (20, 20', 20", 70) ou l'armature (7, 57), caractérisé en ce que ledit deuxième interstice (27, 27', 27 " , 59, 126) présente une pluralité de largeurs différentes s'étendant dans des directions radiales vers l'extérieur à partir de l'axe longitudinal de l'arbre (8), les largeurs du deuxième interstice (27, 27', 27 " , 59, 126) étant toutes inférieures à la largeur du premier interstice.
  2. Actionneur électromagnétique (30, 30', 30 " , 50, 118) selon la revendication 1, l'élément prolongateur (21, 21', 21 " , 120) étant joint au boîtier (20, 20', 20 ") et s'étendant à partir de celui-ci.
  3. Actionneur électromagnétique (30, 30', 30 " , 50, 118) selon la revendication 1, le deuxième interstice (27, 27', 27" , 126) étant formé entre la surface périphérique extérieure (25, 124) de l'armature (7) et une surface intérieure (26, 26', 26" , 122) de l'élément prolongateur (21, 21', 21", 120).
  4. Actionneur électromagnétique (30, 30', 30" , 50, 118) selon la revendication 3, la surface périphérique extérieure (25, 124) de l'armature (7) n'étant pas parallèle à la surface intérieure (26, 26', 26" , 122) de l'élément prolongateur (21', 21" , 120).
  5. Actionneur électromagnétique (30, 30', 30" , 50, 118) selon la revendication 4, la surface périphérique extérieure (25) de l'armature (7) étant parallèle à l'axe longitudinal de l'arbre (8) et la surface intérieure (26', 26" , 122) de l'élément prolongateur (21', 21" , 120) n'étant pas parallèle à l'axe longitudinal de l'arbre (8), dans un plan s'étendant radialement en direction de l'extérieur à partir de l'axe longitudinal de l'arbre (8).
  6. Actionneur électromagnétique (30, 30', 30 " , 50, 118) selon la revendication 4, la plus grande largeur du deuxième interstice (27, 27', 27 " , 59, 126) étant située à proximité de la surface (3, 53) de serrage et la plus petite largeur du deuxième interstice étant disposée de façon distale par rapport à la surface (3, 53) de serrage.
  7. Actionneur électromagnétique (30, 30', 30 " , 50, 118) selon la revendication 4, la plus grande largeur du deuxième interstice (27, 27', 27", 59, 126) étant disposée de façon distale par rapport à la surface (3, 53) de serrage et la plus petite largeur du deuxième interstice étant située à proximité de la surface (3, 53) de serrage.
  8. Actionneur électromagnétique (30, 30', 30 " , 50, 118) selon la revendication 3, la surface périphérique extérieure (124) de l'armature (7) comprenant un évidement (128) formé dans celle-ci, ledit évidement (128) contribuant à définir le deuxième interstice (126).
  9. Actionneur électromagnétique (30, 30', 30" , 50, 118) selon la revendication 8, la surface périphérique extérieure (124) de l'armature (7) étant parallèle à la surface intérieure (122) de l'élément prolongateur (120).
  10. Actionneur électromagnétique (30, 30', 30 " , 50, 118) selon la revendication 9, la surface périphérique extérieure (124) de l'armature (7) et la surface intérieure (122) de l'élément prolongateur (120) n'étant pas parallèles à l'axe longitudinal de l'arbre (8), dans un plan s'étendant radialement en direction de l'extérieur à partir de l'axe longitudinal de l'arbre (8).
  11. Actionneur électromagnétique (30, 30', 30" , 50, 118) selon la revendication 1, l'élément prolongateur (58) étant joint à l'armature (57) et s'étendant à partir de celle-ci, et le deuxième interstice (59) étant formé entre une surface intérieure (58a) de l'élément prolongateur (58) et une surface périphérique extérieure (70a) du boîtier (70).
  12. Actionneur électromagnétique (30, 30', 30", 50, 118) selon la revendication 11, un évidement (80) étant formé dans la surface périphérique extérieure (70a) du boîtier (70) et étant situé dans le deuxième interstice (59).
  13. Actionneur électromagnétique (30, 30', 30", 50, 118) selon la revendication 1, la surface (3, 53) de serrage comportant une plaque (3, 53) de serrage et l'actionneur électromagnétique comportant en outre un aimant permanent (2) disposé radialement vers l'intérieur par rapport à la bobine solénoïde (5).
  14. Actionneur électromagnétique (30, 30', 30 " , 50, 118) selon la revendication 1, comportant en outre un ressort (9) disposé dans le boîtier (20, 20', 20" , 70) et susceptible d'agir pour solliciter l'armature (7, 57) en direction de la deuxième position.
EP04783399A 2003-09-05 2004-09-04 Actionneur electromagnetique a forces initiale et de verrouillage ameliorees Expired - Lifetime EP1665295B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50062903P 2003-09-05 2003-09-05
PCT/US2004/029129 WO2005024860A1 (fr) 2003-09-05 2004-09-04 Actionneur electromagnetique a forces initiale et de verrouillage ameliorees

Publications (2)

Publication Number Publication Date
EP1665295A1 EP1665295A1 (fr) 2006-06-07
EP1665295B1 true EP1665295B1 (fr) 2008-05-28

Family

ID=34272977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04783399A Expired - Lifetime EP1665295B1 (fr) 2003-09-05 2004-09-04 Actionneur electromagnetique a forces initiale et de verrouillage ameliorees

Country Status (11)

Country Link
EP (1) EP1665295B1 (fr)
CN (1) CN1846285B (fr)
AT (1) ATE397278T1 (fr)
AU (1) AU2004271641B9 (fr)
BR (1) BRPI0414123B1 (fr)
CA (1) CA2537475C (fr)
DE (1) DE602004014166D1 (fr)
ES (1) ES2308252T3 (fr)
RU (1) RU2380779C2 (fr)
WO (1) WO2005024860A1 (fr)
ZA (1) ZA200601724B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9514872B2 (en) 2014-12-19 2016-12-06 General Electric Company Electromagnetic actuator and method of use

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006021927A1 (de) * 2006-05-11 2007-11-15 Robert Bosch Gmbh Elektromagnet
US8201665B2 (en) 2007-03-23 2012-06-19 Otis Elevator Company Magnetic door coupling device for an elevator system
EP2624386B1 (fr) * 2012-02-01 2014-12-24 ABB Technology AG Dispositif d'interverrouillage pour appareillage électrique
EP2874169B1 (fr) 2013-11-18 2016-09-14 ABB Schweiz AG Actionneur pour appareillage de commutation moyenne tension
DE102014004843A1 (de) * 2014-04-02 2015-10-08 Schaltbau Gmbh Gleichstromschütz mit zusätzlicher Schalttauglichkeit für Wechselstromlasten und Polung entgegen der Vorzugsstromrichtung
DE102014109124B4 (de) * 2014-06-30 2016-05-19 Kendrion (Villingen) Gmbh Elektromagnetische Nockenwellenverstelleinrichtung
CN106787416A (zh) * 2017-02-04 2017-05-31 中国电子科技集团公司第二十研究所 具有大初始电磁吸力的双气隙多磁路电磁拨销器
JP7393125B2 (ja) * 2018-03-13 2023-12-06 フスコ オートモーティブ ホールディングス エル・エル・シー 中間状態を有する双安定ソレノイド

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3829676A1 (de) * 1988-09-01 1990-03-15 Olympia Aeg Tauchankermagnet, sowie dessen verwendung als druckhammer in einer druckhammervorrichtung
US5110087A (en) * 1990-06-25 1992-05-05 Borg-Warner Automotive Electronic & Mechanical Systems Corporation Variable force solenoid hydraulic control valve
DE4329760A1 (de) * 1993-09-03 1995-03-09 Bosch Gmbh Robert Elektromagnetisch betätigbares Proportionalventil
RU2089995C1 (ru) * 1995-06-05 1997-09-10 Акционерное общество открытого типа "Тесар-СО" Электромагнитный двигатель с горизонтальной тяговой характеристикой (варианты)
CN1360725A (zh) * 1999-07-05 2002-07-24 动力发展有限公司 电磁驱动装置
DE20100950U1 (de) * 2001-01-19 2002-05-23 Robert Bosch Gmbh, 70469 Stuttgart Elektromagnetische Stellvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9514872B2 (en) 2014-12-19 2016-12-06 General Electric Company Electromagnetic actuator and method of use

Also Published As

Publication number Publication date
AU2004271641A1 (en) 2005-03-17
CN1846285B (zh) 2011-10-05
BRPI0414123A (pt) 2006-10-31
ES2308252T3 (es) 2008-12-01
CA2537475A1 (fr) 2005-03-17
ZA200601724B (en) 2007-09-26
WO2005024860A1 (fr) 2005-03-17
AU2004271641B2 (en) 2008-03-20
AU2004271641B9 (en) 2008-08-14
ATE397278T1 (de) 2008-06-15
DE602004014166D1 (de) 2008-07-10
RU2380779C2 (ru) 2010-01-27
CN1846285A (zh) 2006-10-11
EP1665295A1 (fr) 2006-06-07
BRPI0414123B1 (pt) 2016-07-12
RU2006110945A (ru) 2006-08-10
CA2537475C (fr) 2010-08-10

Similar Documents

Publication Publication Date Title
US7053742B2 (en) Electromagnetic actuator having a high initial force and improved latching
US7280019B2 (en) Single coil solenoid having a permanent magnet with bi-directional assist
EP1225609B1 (fr) Electro-aimant et mécanisme d'actionnement pour un interrupteur
DE69714895T2 (de) Gekapselte Kontaktanordnung mit justierbarem Kontaktabstand
EP1665295B1 (fr) Actionneur electromagnetique a forces initiale et de verrouillage ameliorees
US6950000B1 (en) High initial force electromagnetic actuator
US7648119B2 (en) Magnetic drive for a valve
US10170227B2 (en) Electomagnetic driver
US8674795B2 (en) Magnetic actuator with a non-magnetic insert
US20190131048A1 (en) Universal solenoid actuator
AU2016259251B2 (en) Electromagnetic actuator with reduced performance variation
WO2003069299A3 (fr) Actionneur electromagnetique
JP2006222438A (ja) 電磁石およびそれを用いた開閉装置の操作機構
GB2547949B (en) Plunger for magnetic latching solenoid actuator
US7431263B2 (en) Solenoid arrangement
JP3811835B2 (ja) ソレノイド
JPH06215937A (ja) ソレノイド
DE102009025402B4 (de) Magnetostriktiver Aktor
WO2019048315A1 (fr) Ensemble électrovanne
JP2004072853A (ja) リニアモータ用可動子及びこれを用いたリニアモータ
JPS5976406A (ja) 電磁石装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060405

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20070108

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 602004014166

Country of ref document: DE

Date of ref document: 20080710

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2308252

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080828

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080930

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080828

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20090303

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081129

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080829

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004014166

Country of ref document: DE

Owner name: ABB SCHWEIZ AG, CH

Free format text: FORMER OWNER: ABB TECHNOLOGY AG, ZUERICH, CH

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004014166

Country of ref document: DE

Representative=s name: MARKS, FRANK DIETER, DIPL.-ING. PAT.-ING., DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: ABB SCHWEIZ AG

Effective date: 20171213

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20180426 AND 20180502

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: ABB SCHWEIZ AG, CH

Effective date: 20180912

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180920

Year of fee payment: 15

Ref country code: IT

Payment date: 20180925

Year of fee payment: 15

Ref country code: FR

Payment date: 20180924

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20180919

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20181022

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004014166

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190904

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190930

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190904

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20210127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190905