EP0872857A2 - Elektromagnet zur Betätigung des Stellglieds eines Ventils - Google Patents
Elektromagnet zur Betätigung des Stellglieds eines Ventils Download PDFInfo
- Publication number
- EP0872857A2 EP0872857A2 EP98105058A EP98105058A EP0872857A2 EP 0872857 A2 EP0872857 A2 EP 0872857A2 EP 98105058 A EP98105058 A EP 98105058A EP 98105058 A EP98105058 A EP 98105058A EP 0872857 A2 EP0872857 A2 EP 0872857A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- electromagnet
- sensor element
- coils
- anchor
- valve
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
Definitions
- the invention relates to an electromagnet for actuation of the actuator of a valve according to that in the preamble of claim 1 specified genus.
- a 4/3-way valve in Compact design known that a double stroke magnet as a drive having.
- This double stroke magnet is its anchor via a cross pin with a plunger-like, hollow, longitudinally movable Control spool connected by a reset device with two opposing springs in is centered and by the double solenoid deflectable to both sides in working positions is.
- the anchor can be moved longitudinally inside an anchor tube stored on the outer circumference of the magnetic flux Parts of the housing are in contact.
- the housing shows a ring-shaped yoke part between the two coils lying close together and that in the magnetic circuits both coils of the double solenoid is switched.
- the disadvantage here is that no sensor element for magnetic flux detection is present, so that the energization of the two coils in the double solenoid can not be influenced depending on it is.
- valve device is known from DE 41 05 705 A1 known, in which the one used to control the pressure medium Actuator carries a permanent magnet and an associated one Field sensor or Hall generator the position of the actuator can be queried or regulated via the electromagnet can. Installation of the sensor in pressurized rooms of the valve as well as the wiring with the control electronics of the electromagnet increases the construction effort and makes it vulnerable against malfunctions.
- the electromagnet according to the invention for actuating the actuator of a valve with the characteristic features of the main claim has the advantage that he at Actuation of a valve with a three-position Actuator manages with a single sensor element. This enables a particularly simple and inexpensive Construction, because the effort for sensor, its assembly, the evaluation electronics and the wiring significantly reduced. Nevertheless, the basic advantages a flow measurement in the magnetic circuit and thus the possibility the flow control can be fully used. So the lifting work of the electromagnet can be optimally used. Further controlled overexcitation of the magnetic circuits achieve with time-optimized current reduction, whereby on the one hand, shorten the operating times of the valve, in Switching positions energy savings can be achieved and the hydraulic switching performance can be improved overall can.
- the electromagnet with Flow control can be implemented in a space-saving and cost-effective manner.
- FIG. 1 shows a longitudinal section through a double stroke magnet 10 in a simplified representation, the usual 4/3-way valve 11 is attached.
- the double stroke magnet 10 is designed here as a plunger armature electromagnet, whose housing 12 has a pressure tube 13, the front screwed into the valve housing 14 of the directional control valve 11 is.
- the pressure tube 13 is in one piece in a manner known per se formed and consists of a fastening thread 15 load-bearing, cylindrical inner yoke part 16, on the one after the other a first intermediate ring 17, a central tube section 18, a second intermediate ring 19 and an outer Connect pipe section 20. While the two intermediate rings 17, 19 are made of non-magnetic material the remaining parts of the pressure tube 13 made of magnetically conductive Material made.
- the pressure tube 13 In the area of the outer pipe section 20 is the pressure tube 13 through a cylindrical outer yoke 21 closed, whereby an interior 22 is formed in the pressure tube 13 is that receives an anchor 23.
- the anchor 23 is via a cross pin 24 on an axially extending plunger 25 fixed in the inner yoke part 16 and in the outer yoke part 21 is movably mounted.
- first coil 26 and a second coil 27 of the electromagnet On the outer circumference of the pressure tube 13 are one behind the other a first coil 26 and a second coil 27 of the electromagnet arranged, the spatially close together Coils 26, 27 through an annular flux guide 28 are separated.
- On the directional valve 11 facing The end face of the first coil 26 is part of the Housing 12 a first annular end plate 29 arranged, while on the opposite end the second coil 27 facing outward is one second end plate 31 abuts.
- Both coils 26, 27 and both end plates 29, 31 and the flux guide plate 28 are surrounded by a cylindrical tube part 32, which also part of the housing 12 and made of magnetic conductive material is made to the magnetic circuits for the close both coils 26 and 27.
- the outer yoke part 21 is not shown in detail fastened in the pressure pipe 13 and carries a ring nut 33, which overlaps the free end of the pressure tube 13 and the two coils 26, 27 of the electromagnet on the valve housing 14 holds tight.
- the sensor element 34 is located directly on the outer diameter of the pressure tube 13, in particular the middle pipe section 18 and is thus in a Point assigned to the magnetic circuits of both coils 26 and 27 is.
- the sensor element 34 with which the magnetic flux is applied a point representative of both magnetic circuits is preferably carried out as a Hall generator.
- the directional valve 11 confirmed by the double stroke magnet 10 is a known valve for four ways and three positions, its serving as actuator spool 35 by a mechanical reset device 36 with two opposite mutually acting springs 37, 38 in the drawn Center position is centered.
- the one carrying the anchor 23 Tappet 25 penetrates the inner yoke part 16 and lies with its end 39 on the front on the spool 35.
- the actuator can with no current Coils through a mechanical reset device be centered in a middle position and by alternating Current supply to one of the two coils in both working positions be deflected. It is also possible by partially energizing both coils their opposite Balancing forces on the anchor in a middle position and to deflect the armature, the energization of the increase one coil and energize the other coil lower at the same time.
- Directional control valve 11 a reset device with different strong springs to use, so that when the Actuator from a central position in one direction a coil works against a weak spring while at the deflection in the opposite direction the other coil against one Differential force of both springs works.
- a connector 41 is grown, in which the Control electronics for the sensor element 34 and the two Coils 26, 27 housed simple, compact and inexpensive can be.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
Claims (7)
- Elektromagnet zur Betätigung des Stellglieds eines Ventils, insbesondere des Steuerschiebers eines Wegeventils, mit einem Gehäuse, in dem ein einen beweglich gelagerten Anker des Elektromagneten aufnehmendes Ankerrohr angeordnet ist, und welcher Elektromagnet mit einer Schaltung zur Veränderung bzw. Regelung des Erregerstroms der Spulen für verschiedene Anzugskräfte und Ankerstellungen versehen und ferner mit einem in Abhängigkeit von der magnetischen Flußdichte des Elektromagneten eine elektrische Steuergröße erzeugenden Sensorelements verbunden ist, wobei das Sensorelement außerhalb des Ankerrohrs und innerhalb des magnetischen Flusses des Elektromagneten im Bereich von Flußleitteilen angeordnet ist, dadurch gekennzeichnet, daß der Elektromagnet als Doppelhubmagnet (10) ausgebildet ist und eine zweite Spule (27) aufweist, die neben der ersten Spule (26) auf dem Ankerrohr (13) angeordnet ist, daß zwischen den beiden Spulen (26, 27) ein den Magnetflüssen beider Spulen zugeordnetes, gemeinsames Flußleitteil (28) angeordnet ist und daß das Sensorelement (34) im Bereich dieses gemeinsamen Flußleitteils (28) liegt.
- Elektromagnet nach Anspruch 1, dadurch gekennzeichnet, daß er als Tauchanker-Magnet ausgebildet ist, dessen Ankerrohr ein innen von Druckmittel beaufschlagtes Druckrohr (13) ist.
- Elektromagnet nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gehäuse (12) des Doppelhubmagneten (10) eine zwischen den beiden Spulen (26, 27) angeordnete Flußleitscheibe (28) aufweist, die sich insbesondere radial zwischen dem Druckrohr (13) und einem außenliegenden, zylindrischen Rohrteil (32) erstreckt.
- Elektromagnet nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß das Sensorelement (34) zwischen dem Außendurchmesser des Druckrohrs (13) und dem Innendurchmesser des gemeinsamen Flußleitteils (28) insbesondere der Flußleitscheibe, angeordnet ist.
- Elektromagnet nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Sensorelement (34) ein magnetfeldabhängiger Widerstand ist.
- Elektromagnet nach Anspruch 5, dadurch gekennzeichnet, daß das Sensorelement (34) ein Hall-Generator ist.
- Elektromagnet nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Anker (23) mit dem Steuerschieber (35) eines Wegeventils (11) in Wirkverbindung steht, der wenigstens drei Schaltstellungen aufweist und in seiner Mittelstellung durch eine mechanische Rückstelleinrichtung (36) zentriert ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19716540 | 1997-04-19 | ||
| DE19716540A DE19716540A1 (de) | 1997-04-19 | 1997-04-19 | Elektromagnet zur Betätigung des Stellglieds eines Ventils |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0872857A2 true EP0872857A2 (de) | 1998-10-21 |
| EP0872857A3 EP0872857A3 (de) | 1999-04-14 |
| EP0872857B1 EP0872857B1 (de) | 2003-03-12 |
Family
ID=7827103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98105058A Expired - Lifetime EP0872857B1 (de) | 1997-04-19 | 1998-03-20 | Elektromagnet zur Betätigung des Stellglieds eines Ventils |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0872857B1 (de) |
| DE (2) | DE19716540A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2375115A1 (de) | 2010-04-07 | 2011-10-12 | MOOG GmbH | Magnetbetätiges Mehrweghydraulikventil |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19914594B4 (de) * | 1999-03-31 | 2005-09-22 | Conti Temic Microelectronic Gmbh | Aktor zur elektromagnetischen Ventilsteuerung |
| DE10006318A1 (de) * | 2000-02-12 | 2001-08-23 | Daimler Chrysler Ag | Aktor zur elektromagnetischen Ventilsteuerung mit zwei Elektromagneten |
| DE102005058376B4 (de) * | 2004-12-06 | 2014-03-06 | Kendrion (Villingen) Gmbh | Geräuschoptimierter Hubaktor |
| CN116025610B (zh) * | 2023-01-16 | 2026-04-03 | 江苏五洋自控技术股份有限公司 | 一种双电磁铁驱动的高速开关阀 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01269768A (ja) * | 1988-04-22 | 1989-10-27 | Tokyo Keiki Co Ltd | 電磁切換弁 |
| DE3905023A1 (de) * | 1989-02-18 | 1990-08-30 | Voith Gmbh J M | Elektromagnet mit einem tauchanker |
| DE3934287A1 (de) * | 1989-10-13 | 1991-04-18 | Eckehart Schulze | Magnetventil |
| FR2684251B1 (fr) * | 1991-11-26 | 1995-07-28 | Hutchinson | Moteur lineaire asservi a reluctance variable. |
-
1997
- 1997-04-19 DE DE19716540A patent/DE19716540A1/de not_active Withdrawn
-
1998
- 1998-03-20 EP EP98105058A patent/EP0872857B1/de not_active Expired - Lifetime
- 1998-03-20 DE DE59807427T patent/DE59807427D1/de not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2375115A1 (de) | 2010-04-07 | 2011-10-12 | MOOG GmbH | Magnetbetätiges Mehrweghydraulikventil |
| DE102010014069A1 (de) | 2010-04-07 | 2011-10-13 | Moog Gmbh | Magnetbetätigtes Mehrwegehydraulikventil |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59807427D1 (de) | 2003-04-17 |
| EP0872857B1 (de) | 2003-03-12 |
| DE19716540A1 (de) | 1998-10-22 |
| EP0872857A3 (de) | 1999-04-14 |
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