EP2936510A1 - Elektromechanische antriebseinrichtung und magnetventil - Google Patents
Elektromechanische antriebseinrichtung und magnetventilInfo
- Publication number
- EP2936510A1 EP2936510A1 EP12812869.1A EP12812869A EP2936510A1 EP 2936510 A1 EP2936510 A1 EP 2936510A1 EP 12812869 A EP12812869 A EP 12812869A EP 2936510 A1 EP2936510 A1 EP 2936510A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring portion
- ring
- section
- drive device
- electromechanical drive
- 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
Links
- 230000005291 magnetic effect Effects 0.000 claims description 78
- 230000033001 locomotion Effects 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000001419 dependent effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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
- H01F7/14—Pivoting armatures
Definitions
- the invention relates to an electromechanical drive device, in particular for moving a valve member, comprising at least one hollow wound magnet coil and a ring ⁇ yoke, which comprises a first ring portion and a second ring ⁇ section, wherein the at least one magnetic coil surrounds the first ring portion partially and wherein the second ring portion is pivotally mounted to the first ring portion. Furthermore, the invention relates to a solenoid valve with such an electromechanical drive device.
- a switching magnet for DC and AC in which a fes ⁇ ter magnetic core is provided with a magnetic coil and a movable armature is attached to a cantilever of the magnetic core.
- a movable connection between the armature and the arm of the magnetic core is produced by means of a pin hinge.
- DE 1 972 126 U discloses a hinged armature magnet, in which a magnetic coil is mounted on a central leg of an E-shaped yoke and a pivotable armature is provided, which can perform a pivoting movement in response to energization of Mag ⁇ net coil.
- the pivoting ⁇ bare armature is arranged on the side of the yoke, rectangular frame-shaped cover plates by means of a riveted joint pivotally mounted, wherein the contact of armature ensured to the cover plates, that regardless of the Schwenkstel- Development of the armature always the same magnetic resistance zwi ⁇ rule anchor and yoke in the rivet connection is present.
- the object of the invention is to provide an electromechanical drive device and a solenoid valve, which have an improved switching behavior.
- the first ring portion and the second ring portion are formed such that the first air gap ⁇ completely in a space surrounded by the magnetic coil volume, in particular in a middle third of this volume space, is arranged.
- the first air gap is arranged in a central region of the volume surrounded by the magnetic coil, in particular in a middle third of this volume, to ensure a low-loss coupling of the magnetic field generated by the magnetic coil in both ring sections. It is advantageous if the air gap is always completely absorbed, regardless of the functional position of the electromechanical drive device, in the volume of space surrounded by the magnet coil, since this is dependent on the size of the air gap
- Variations for the coupling of the magnetic field from the magnetic coil can be kept low in the yoke. Ins ⁇ particular scattering losses for the magnetic field to be coupled can be kept low by this arrangement of the air gap.
- ring sections are preferably arranged such that the two air gaps in a pivoting movement of the second ring section with respect to the first ring section depending ⁇ one, preferably in the same direction, change in size experience.
- a proportional or non-proportional change in size of the two air gaps can be provided for this purpose.
- a pivot axis for the second ring portion is disposed at an end portion of the second ring portion. It can thus be achieved that the second air gap is always smaller than the first air gap.
- a magnetic resistance between the first and the second ring section in the region of the second air gap is at least almost exclusively, in particular exclusively, dependent on the size of the second air gap and / or that the second ring section is in the region of the second Air gap always rests at least with a line contact on the first ring section.
- a particularly simple structure for the Ringj och can be realized, since no measures must be taken to ensure an air gap with a constant size.
- the magnetic resistance between the two ring sections in the region of the second air gap does not exceed a predetermined level, wherein the maximum magnetic resistance by the line contact between the first and second ring section at maximum size of the Air gap is determined and reduced with decreasing size of the air gap.
- a second air gap formed between the second annular section and the first annular section is arranged completely in a volume of space surrounded by a second magnetic coil, in particular in a middle third of this volume.
- first ring portion and the second ring portion are hinged together and a hinge connection between the first ring portion and the second ring portion is formed for a motion-independent, constant magnetic resistance between the first ring portion and the second ring portion.
- the magnetic resistance in Ringj och at least largely determined by the size of the first air gap, while the magnetic resistance in the region of the hinge connection is at least largely independent of the position of the two ring sections to each other.
- the first ring portion is U-shaped, in particular with a first U-leg, which is longer than a second U-leg. This will ox at a ⁇ pose a compact construction of a central Ringj Arrangement of the solenoid and the first air gap ensured.
- both the first and the second ring section may be U-shaped. It can preferably be provided that the U-legs of the respective ring sections are each the same length.
- the first ring portion are assigned two, in particular parallel to each other and spaced from each other, magnetic coils. As a result, a significant increase in performance can be achieved without a significant increase in the overall volume of the electromechanical drive device, which is advantageous, for example, for carrying out rapid switching operations.
- the second ring portion between the first ring portion and a, in particular cutting-like design, bearing means and / or a, in particular elastically formed, pressure means is arranged, for an alignment of the second ring portion and / or for a force is formed on the second and first ring portion.
- the bearing means serves to ensure a respectively definable position of the second ring portion relative to the first ring portion in all pivot positions, which can occupy the second ring portion.
- the bearing means may in particular be a blade-like geometry whose cutting edge is aligned parallel to the pivot axis of the second ring section.
- a pressure means may be provided, which exerts a pressure force on the second ring portion in the direction of the first ring portion, thereby ensuring a reliable positioning of the second ring portion relative to the first ring portion.
- the pressure means is at least partially made of an elastic material.
- a permanent magnet is arranged, which is assigned ⁇ assigned to the first or second ring portion and / or that the Ringj och a third ring portion is assigned , which forms at least one, in particular size-variable, air gap with the first or the second ring portion and forms a second magnetic circuit with the first and / or the second ring portion.
- a magnetic bias in the Ringj och can be caused, which can be used, for example, that the second ring portion opposite the first ring portion without a power supply to the solenoid assumes a predetermined preferred position.
- a third ring section is provided, an additional magnetic circuit is thereby formed, which is preferably arranged such that the second ring section remains in at least one switching position, preferably in two different switching positions, without the need for an additional energy input into the solenoid coil is required.
- the second ring portion associated with a spring device which is operatively connected to the first ring portion and determines a preferred position for the second ring portion relative to the first ring portion, when no energization of the solenoid is provided.
- a bistable drive device can be provided, in which the second ring portion remains in two different switching positions without energy input to the magnetic coil.
- the second ring section has at least one curved surface in the region of the first air gap and / or that the ring sections consist of several Metal sheet layers are constructed and / or that at least one of the ring sections has a rectangular, in particular square, cross-section.
- the at least one ge ⁇ curved surface may, in particular concentrically to the
- the object of the invention is achieved according to a second aspect by a solenoid valve according to claim 11.
- the solenoid valve comprises a valve housing which has at least one inlet connection for a fluid supply and at least one outlet connection for a fluid removal and in which a valve member is movably received, which for a sealing abutment at one of the inlet connection or the outlet connection associated valve seat for influencing ei ⁇ nes fluid flow between the at least one smartsan ⁇ circuit and the at least one output terminal is formed through the valve housing, with an electromechanical drive device according to any one of the preceding claims.
- valve member is formed as a sealing means on a side facing away from the first ring portion surface of the second ring ⁇ section or by a movement-coupled with the second ring portion actuator actuated ⁇ bar.
- Figure 1 is a schematic sectional view of a first
- Embodiment of an electromechanical drive ⁇ device Embodiment of an electromechanical drive ⁇ device
- Figure 2 is a schematic sectional view of a second
- FIG. 4 shows a second valve embodiment for the solenoid valve according to FIG. 3
- Figure 5 shows a third valve embodiment for the solenoid valve according to Figure 3 and
- FIG. 6 shows a fourth valve embodiment for the solenoid valve according to FIG. 3.
- a shown in Figure 1 electromechanical drive device 1 comprises a hollow wound magnetic coil 2, which is made of a conductive magnetic fields for Mate ⁇ rial, in particular from a ferromagnetic material, associated with a ring yoke.
- the Ringj och 3 is an example of a first ring portion 4 and a second ring portion 5 on ⁇ built, which are pivotally mounted to each other, wherein a pivot axis 6 is aligned perpendicular to the plane of representation of Figure 1 and is indicated by an axis symbol.
- the magnet coil 2 is assigned to the first ring section 4, in particular fixed to the first ring section 4, so that the second ring section 5 is designed to be movable relative to the magnet coil 2.
- a spring device 7 is provided by way of example that engages projections on the ring portions 4 and 5 and this forcing apart.
- an example of an elastic hose 8 formed of an elastic material pressure means is provided, which is supported on a housing, not shown, for the electromechanical drive device 1.
- the hose 8 is received between the housing, not shown, and the second ring section 5 such that the hose 8 can press the second ring section 5 against the first ring section 4.
- a first air gap 9 and a second air gap 10 are formed between the ring sections 4 and 5. Since the pivot axis 6 extends exemplarily along a contact line between the first and the second ring section 4, 5, a ratio between the size of the first air gap 9 and the size of the second air gap 10 during a pivoting movement from the open position shown in one Closed position in which the two air gaps 9, 10 at least almost completely disappear, at least almost constant.
- the pivoting movement of the second ring section 5 relative to the first ring section 4 about the pivot axis 6 and against the spring force applied by the spring device 7 is effected by energizing the magnetic coil 2.
- the first air gap is located in a space surrounded by the example hollow magnetic coil 2 space volume, whereby an advantageous coupling of the magnetic flux is ensured in the yoke 3.
- the second ring section 5 is moved back into the rest position according to FIG. 1 due to the restoring force of the spring device 7.
- FIG. 2 The second embodiment of an electromechanical drive device 21 shown in FIG. 2 comprises components having the same function as the electromechanical drive device 1, so that these components are designated by reference numerals increased by 20 and will not be explained again below.
- FIG. 2 omits an illustration of the spring device and the pressure device.
- the permanent magnet 31st Preferably, the permanent magnet is magnetized such that the outgoing field lines extend along the longer leg 32 of the U-shaped annular portion 24, as indicated by the arrow in Figure 2.
- a third, exemplarily U-shaped trained annular portion 33 is provided, which is spaced and immovable relative to the ring yoke
- the fourth air gap 35 is formed in particular variable in size due to the mobility of the second ring portion 25.
- the forces of attraction produced by the permanent magnet 31 between the first and second annular sections 24, 25 are insufficient to overcome the restoring force of the spring device, not shown, so that the second annular section without restoring the magnetic coil 22, the illustrated rest position occupies.
- the outgoing magnetic flux from the permanent magnet 31 flows through the third and fourth air gaps 34, 35 through the third ring portion 33, since the magnetic resistance of this second magnetic circuit is less than the magnetic resistance of the annular yoke 22 certain first magnetic circuit.
- the respective drive means is provided in accordance with the drive device 1 according to the figure 1 with a spring means, not shown, which is rich ⁇ tet, without a power supply to the respective magnetic coil a spacing of the respective second Ring section opposite the respective first ring section cause. Accordingly, the illustrations of Figures 3 to 6 are so to understand that the respective magnetic coil or the jewei ⁇ ligen solenoid coils are energized, so that the air gap or the air gaps between the respective first ring portion and the respective second ring portion is minimal or are.
- an electromechanical drive device 41 which, with the exception of a second magnet coil 42, corresponds to the electromechanical drive device 1, so that the same reference numerals as for the electromechanical drive device 1 are used here for functionally identical components.
- the magnetic coils 2, 42 and the first ring portion 4 are surrounded by a drive housing 43, which is provided for electrical insulation and mechanical protection of these components.
- the drive housing 43 is adjoined by a valve housing 44, on which an inlet connection 45 and an outlet connection 46 for a supply or removal of a fluid, in particular a gaseous or liquid medium, are formed.
- a valve chamber 47 is formed between the input port 45 and the output port 46, which is traversed by the fluid.
- a valve seat 48 is formed in the valve chamber 47 at the output port 46, which serves as a contact surface for a sealing engagement of serving as a valve member 49 sealing element made of a rubber-elastic material.
- the valve member 49 is attached to an outer surface of the second ring portion 5.
- valve member 49 from the second Ringab ⁇ section 5 between a rest position in which the valve member 49 sealingly abuts the valve seat 48 due to the action of a spring device, not shown, without energization of the magnetic coils 2, 42, and a functional position in which a free fluid flow between the input port 45 and the output terminal 46 is made possible by appropriate energization of the magnetic coils 2, 42 are moved.
- a bearing means 50 with a substantially triangular cross-section is exemplarily formed on the valve housing 44.
- the bearing means 50 extends with a uniform cross-section transverse to the plane of representation of Figure 3 and thereby forms a bearing blade 51.
- the bearing blade 51 is in a linear contact with the second ring section 5 and presses the second ring section 5 against the first ring section 4. Due to the interaction of the bearing blade 51 with the second ring section 5, this is held in a predeterminable position relative to the first ring section 4. In view of the small pivot angle range which is required for the movement of the second ring section 5 between the functional position shown in FIG. 3 and a rest position (not shown), this type of mounting is sufficient.
- valve housing 64 which can be grown in the same manner as the valve housing 44 to the Antriebsgeophu ⁇ se 43, the valve member 69 is formed as Memb ⁇ rane which the valve chamber 67 between the on input terminal 65 and the Output terminal 66 limited.
- the membrane is sealed peripherally on the valve housing 64.
- a plunger 60 On a second ring portion 5 supplied ⁇ facing surface area of the valve member 69 is a plunger 60, in particular integrally formed. This plunger 60 allows a central introduction of force from the second ring section 5 to the membrane, which can thus be pressed surface-sealingly onto the valve seat 68 in the functional position.
- valve housing 74 shown in FIG. 5 is an alternative development of the valve housing 64, wherein the valve member 79 is also formed as a membrane and peripherally circumferentially sealed in the valve housing 74 is added. An introduction of movement from the second ring section 5 to the valve member 79 takes place with a rocker 70 mounted pivotably in the valve housing 74.
- This rocker 70 is supported by a spring element designed as spring ⁇ 71 and a cam 72 on the second ring section 5. Since the spring means 71 and the cam 72 are arranged on different sides of a pivot axis 73, with appropriate selection of the spring means 71, the rocker 70 and the valve member 79 is energized upon energization of the at least one, not shown, magnetic coil in the illustrated functional position in which a fluid flow from the input port 75 to the output port 76 is possible.
- valve member and the rocker allow a mutual sealing of two gel-like arranged to the pivot axis of the rocker output terminals, so that in the rest position in the same manner as in the embodiment of Figure 5, a seal of the first output terminal results and when energized the two magnetic coils due to the restoring action of the spring means a pivoting movement of the rocker takes place. This seals the second output port. at Cancellation of the energization of the two magnetic coils, the release of the second output terminal and the re-closure of the first output terminal.
- the bearing means 90 is configured by way of example as a solid-body bearing between a bearing tongue 92 formed on the valve housing 84 and the second annular section 5.
- the bearing means 90 is made as a flexurally elastic plate, for example of a plastic or metal material and in each case with the valve housing 84 and the second ring portion 5, in particular cohesively connected.
- this is designed as a solid-body joint between the first and the second ring portion.
- valve member 89 is designed as a diaphragm peripherally sealed and is movably coupled to the second ring section 5 by a slide 91 mounted so as to slide in the valve housing 84.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2012/005356 WO2014094809A1 (de) | 2012-12-21 | 2012-12-21 | Elektromechanische antriebseinrichtung und magnetventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2936510A1 true EP2936510A1 (de) | 2015-10-28 |
EP2936510B1 EP2936510B1 (de) | 2018-11-21 |
Family
ID=47522466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12812869.1A Active EP2936510B1 (de) | 2012-12-21 | 2012-12-21 | Elektromechanische antriebseinrichtung und magnetventil |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2936510B1 (de) |
CN (1) | CN105190797A (de) |
WO (1) | WO2014094809A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE536909C (de) | 1931-10-28 | Bbc Brown Boveri & Cie | Schaltmagnet fuer Gleich- und Wechselstrom | |
US3323090A (en) * | 1964-06-04 | 1967-05-30 | Obrien D G Inc | Fluid seal for a torque motor |
DE1972126U (de) | 1967-08-11 | 1967-11-09 | Binder Magnete K G | Klappankermagnet. |
US3587016A (en) * | 1970-01-29 | 1971-06-22 | Abex Corp | Null adjuster for magnetically operated torque motors |
US7021603B2 (en) * | 1998-10-08 | 2006-04-04 | Wladyslaw Wygnaski | Electromagnetic actuator and integrated actuator and fluid flow control valve |
FR2790593B1 (fr) * | 1999-03-02 | 2001-05-04 | Schneider Electric Ind Sa | Actionneur magnetique a palette en particulier pour disjoncteur et disjoncteur equipe d'un tel actionneur |
-
2012
- 2012-12-21 EP EP12812869.1A patent/EP2936510B1/de active Active
- 2012-12-21 CN CN201280077951.8A patent/CN105190797A/zh active Pending
- 2012-12-21 WO PCT/EP2012/005356 patent/WO2014094809A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2014094809A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN105190797A (zh) | 2015-12-23 |
WO2014094809A1 (de) | 2014-06-26 |
EP2936510B1 (de) | 2018-11-21 |
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