EP0607378A1 - Stellantrieb zur drehwinkelverstellung eines stellgliedes. - Google Patents
Stellantrieb zur drehwinkelverstellung eines stellgliedes.Info
- Publication number
- EP0607378A1 EP0607378A1 EP93914632A EP93914632A EP0607378A1 EP 0607378 A1 EP0607378 A1 EP 0607378A1 EP 93914632 A EP93914632 A EP 93914632A EP 93914632 A EP93914632 A EP 93914632A EP 0607378 A1 EP0607378 A1 EP 0607378A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- points
- sheet metal
- winding
- pole
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M3/00—Idling devices for carburettors
- F02M3/06—Increasing idling speed
- F02M3/07—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M3/00—Idling devices for carburettors
- F02M3/06—Increasing idling speed
- F02M2003/067—Increasing idling speed the valve for controlling the cross-section of the conduit being rotatable, but not being a screw-like valve
Definitions
- the invention is based on an actuator for adjusting the angle of rotation of an actuator according to the preamble of the main claim.
- An actuator is already known (DE 30 39 521 A1), in which a rotor in the circumferential direction is partially enclosed by a stator provided with asymmetrically designed pole shoes, into which a magnetic field can be induced via an excitation winding. Since the stator in this solution is either designed in two parts or the excitation winding must be applied directly to the stator and due to the asymmetrical configuration of the stator poles, this solution is associated with a complex manufacturing process which is very costly, particularly in series production.
- the actuator according to the invention with the characterizing features of the main claim has the advantage that the stator enclosing the rotor is made in one piece, thereby ensuring simple insertion of the excitation winding into the stator. This is achieved in that the stator completely surrounds the rotor and the field winding between two on the outside the stator trained legs is used. In addition, the formation of weak points in the stator poles enables the torque / angle of rotation characteristic of the actuator to be optimized.
- stator from individual laminations, each of which has cutouts and / or separation points in the region of the poles and which are assembled to form a one-piece stator package.
- the separating points having laminations are desirably affects the properties of the stator magne ⁇ tables while maintaining about the recesses having laminations of the cohesion of the stator and thus a fertigungsfreund ⁇ Liche further processing is ensured.
- FIG. 1 shows a longitudinal section through a rotary actuator designed according to the invention
- FIG. 2 shows a section along the line II-II in FIG. 1.
- FIG. 1 shows a rotary actuator for controlling the opening cross section of a flow line for internal combustion engines carrying a medium.
- a rotary actuator of this type is used, for example, to control the idle speed of the internal combustion engine and is arranged in a bypass line bridging a throttle valve.
- the rotary actuator is made up of an actuator driven and assembled an actuator housing 22.
- the actuator 1 has a drive housing 2 made of plastic, which encloses a stator 3 consisting, for example, of laminations 6 and a winding 5 arranged around an induction core 4.
- a holding body 9 which has a bore 10 into which one end of an axis 11 is inserted.
- a carrier body 17 On the axis 11, which on the other hand is fixed in the actuator housing 22, for example by overmolding, a carrier body 17 is rotatably mounted, for example, via a roller bearing 15 and a sliding seat 16. In the circumferential direction, the carrier body 17 is surrounded by a diametrically magnetized permanent magnet 18 and a control member 19, the parts 17 and 18 together forming a rotor 14 of the actuator 1, which rotates the control member 19.
- a control arm 23 is formed on the control member 19, which projects into a control chamber 25 located in the actuator housing 22 and whose outer surface 24 is shaped in such a way that it fits as precisely as possible into the inner diameter of an adjusting window (not shown in the drawing)
- Control chamber 25 corresponds to the flow opening and, depending on the angular position of the rotor 14, more or less opens the flow opening.
- the drive housing 2 and the actuator housing 22 are positively connected in the axial direction via a bayonet connection 28 and clamped without play with the aid of a spring washer 29.
- a disk 30 located on the axis 11 between the actuator housing 22 and the carrier body 17 ensures that the rotor 14 can be rotated with little friction.
- FIG. 2 shows a section along the line II-II in FIG. 1.
- the carrier body 17 is located on the axis 11, on which the permanent magnet 18 is arranged concentrically and which is surrounded by the stator 3 in the circumferential direction.
- the stator 3 has a through opening 13 into which the rotor 14 projects.
- On an indoor Surface of the through opening 13 of the stator 3 are two opposite poles 33, 34 which are arranged at a distance from one another and which form an air gap 12 which is as narrow as possible in the radial direction with the rotor 14.
- a yoke 35 is formed on the outside of the stator 3, which has two legs 38, 39 which run approximately parallel to one another at a distance, between which an induction core 4 is inserted in a known manner, for example via a dovetail connection 36.
- the poles 33, 34 encircle the rotor 14 in such a way that a pole 33 connects the two legs 38 and 39 on the side of the passage opening 13 facing the induction core 4 and a pole 34 lies on the side of the rotor 14 facing away from the induction core 4.
- the induction core 4 is surrounded by at least one winding 5 which can be supplied with a voltage via plug elements 37.
- the weak points 40 are advantageously arranged opposite one another.
- Each recess 41 is characterized by a reduction in the cross-sectional area of the stator 3 in the radial direction in the region formed by the poles 33, 34 to a residual cross-section 43, over which there is still a material bond.
- the recesses 41 can take any shape, for example semicircular, corrugated, grooved or ring-shaped and can be opened or closed on the inside or outside of the stator 3.
- FIG. 2 shows semicircular recesses 41 which are open to the outside of the stator 3.
- each separation point 42 is characterized by a complete separation of the cross-sectional area of the stator 3 in the area formed by the poles 33, 34 in the radial direction.
- each metal plate 6 When the stator 3 is formed by means of metal plates 6, more than one separation point 42 can be formed on each metal plate 6, so that each metal plate 6 consists of several parts.
- an alternate layering of sheet metal laminations 6, which have separation points, is provided.
- a sheet metal plate 6 with separating points 42 can be arranged between two sheet metal plates 6 with cutouts 41, but several sheet metal plates 6 with separating points 42 can also be located between two sheet metal plates 6 with cutouts.
- two sheet metal lamellae 6 with separating points 42 are arranged by way of example between two sheet metal lamellae 6 with cutouts 41.
- the alternately layered laminations 6 are packaged in a known manner, for example by pressing, to form a one-piece stator 3.
- the fabric is held together by the sheet metal fins 6 which do not have a plurality of separation points 42.
- the induction core 4 with the winding 5 is inserted into the packaged stator.
- the drive housing 2 is then formed by extrusion coating with plastic.
- a voltage to the plug elements 37
- a magnetic field is induced in the induction core 4 and in the stator 3 by the winding 5, which leads to a rotation of the rotor 14 and thus of the control element 19.
- the magnetic field is therefore guided over the pole 33 lying between the two legs 38, 39 and the pole 34 lying between the projection of the two legs and facing away from the induction core 4, with a strengthened one as desired due to the weak point 40
- the magnetic field acts via the air gap 12 on the permanent magnet 18 and thus on the rotor 14.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4226548A DE4226548A1 (de) | 1992-08-11 | 1992-08-11 | Stellantrieb zur Drehwinkelverstellung eines Stellgliedes |
DE4226548 | 1992-08-11 | ||
PCT/DE1993/000630 WO1994004807A1 (de) | 1992-08-11 | 1993-07-17 | Stellantrieb zur drehwinkelverstellung eines stellgliedes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0607378A1 true EP0607378A1 (de) | 1994-07-27 |
EP0607378B1 EP0607378B1 (de) | 1997-03-05 |
Family
ID=6465305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93914632A Expired - Lifetime EP0607378B1 (de) | 1992-08-11 | 1993-07-17 | Stellantrieb zur drehwinkelverstellung eines stellgliedes |
Country Status (7)
Country | Link |
---|---|
US (1) | US5554901A (de) |
EP (1) | EP0607378B1 (de) |
JP (1) | JPH07500240A (de) |
BR (1) | BR9305601A (de) |
DE (2) | DE4226548A1 (de) |
ES (1) | ES2098756T3 (de) |
WO (1) | WO1994004807A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4443618C5 (de) * | 1993-12-17 | 2004-02-05 | Siemens Ag | Winkelstellantrieb |
US6240735B1 (en) | 2000-02-18 | 2001-06-05 | Robertshaw Controls Company | Rotary damper assembly |
US6302747B1 (en) | 2000-05-02 | 2001-10-16 | Buehler Products, Inc. | Two-position (on-off) actuator with modular connector |
JP2003077722A (ja) | 2001-08-31 | 2003-03-14 | Mitsubishi Electric Corp | 積層コアの形成方法および電磁式バルブ駆動装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1538196A (en) * | 1921-12-06 | 1925-05-19 | Safety Car Heating & Lighting | Construction for dynamo-electric machines |
US2323114A (en) * | 1942-02-26 | 1943-06-29 | Gen Motors Corp | Pole piece assembly |
FR2263632B1 (de) * | 1974-03-07 | 1980-08-14 | Seiko Instr & Electronics | |
US4262353A (en) * | 1978-09-07 | 1981-04-14 | Kabushiki Kaisha Suwa Seikosha | Transducer for electronic timepiece |
DE3039521A1 (de) * | 1980-10-20 | 1982-05-19 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Einrichtung zur regelung der leerlaufdrehzahl von otto-motoren, insbesondere von kraftfahrzeugmotoren |
US4618792A (en) * | 1984-09-26 | 1986-10-21 | Westinghouse Electric Corp. | Dynamoelectric machine with a laminated pole permanent magnet rotor |
DE3830114A1 (de) * | 1988-09-05 | 1990-03-15 | Bosch Gmbh Robert | Elektrischer drehsteller |
-
1992
- 1992-08-11 DE DE4226548A patent/DE4226548A1/de not_active Withdrawn
-
1993
- 1993-07-17 ES ES93914632T patent/ES2098756T3/es not_active Expired - Lifetime
- 1993-07-17 WO PCT/DE1993/000630 patent/WO1994004807A1/de active IP Right Grant
- 1993-07-17 US US08/211,612 patent/US5554901A/en not_active Expired - Fee Related
- 1993-07-17 EP EP93914632A patent/EP0607378B1/de not_active Expired - Lifetime
- 1993-07-17 JP JP6505742A patent/JPH07500240A/ja active Pending
- 1993-07-17 BR BR9305601A patent/BR9305601A/pt not_active IP Right Cessation
- 1993-07-17 DE DE59305625T patent/DE59305625D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9404807A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5554901A (en) | 1996-09-10 |
JPH07500240A (ja) | 1995-01-05 |
ES2098756T3 (es) | 1997-05-01 |
DE59305625D1 (de) | 1997-04-10 |
WO1994004807A1 (de) | 1994-03-03 |
BR9305601A (pt) | 1994-11-22 |
DE4226548A1 (de) | 1994-02-17 |
EP0607378B1 (de) | 1997-03-05 |
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