Electromagnetic actuating apparatus with a D-shaped coil for a two-pin actuator

Abstract

An actuating apparatus having a first actuating unit and a second actuating unit arranged adjacent to the first actuating unit. The actuating units each have elongated tubular coil bodies, actuator coils which are wound around the coil bodies, electromagnetically actuatable actuators which are guided in the coil bodies and are movable relative to the actuator coils, and the coil bodies are D-shaped and face one another with the flattened sides thereof.

Claims

1. An actuating apparatus, comprising: a first actuating unit comprising: a first elongated tubular coil body, a first actuator coil, which is wound around the first elongated tubular coil body, a first actuator that is electromagnetically actuated by the first actuator coil, which first actuator is guided in the first elongated tubular coil body and movable relative to the first actuator coil, a second actuating unit arranged adjacent to the first actuating unit, the second actuating unit comprising: a second elongated tubular coil body, a second actuator coil, which is wound around the second coil body, a second actuator that is electromagnetically actuated by the second actuator coil, which second actuator is guided in the second coil body and movable relative to the second actuator coil, wherein the first actuator coil comprises an outer solid peripheral line with an arcuate section and a straight section configured as a chord along at least one section of a longitudinal axis of the first actuator coil and in cross section perpendicular to the longitudinal axis.

2. The actuating apparatus according to claim 1, wherein the longitudinal axis of the first coil body and a longitudinal axis of the second coil body are oriented parallel to one another.

3. The actuating apparatus according to claim 1, wherein the second actuator coil comprises an outer solid peripheral line with an arcuate section and a straight section configured as a chord along at least one section of a longitudinal axis and in cross section perpendicular to the longitudinal axis.

4. The actuating apparatus according to claim 1, wherein the circular arc of the arcuate section has a center point angle of at least 120 degrees.

5. The actuating apparatus according to claim 3, wherein the first actuating unit and the second actuating unit are arranged relative to one another such that their straight sections configured as chords are facing one another.

6. The actuating apparatus according to claim 1, wherein the first actuator coil on the first actuating unit and the second actuator coil on the second actuating unit are arranged at an offset from one another.

7. The actuating apparatus according to claim 1, wherein the first actuator coil and the second actuator coil are wound in the same winding direction.

8. The actuating apparatus according to claim 1, wherein the first actuator coil and the second actuator coil are electrically connected in series.

9. The actuating apparatus according to claim 1, wherein the first actuator and the second actuator comprise an outer solid peripheral line at least along a section of their respective longitudinal axes and in cross section perpendicular to their longitudinal axes, which peripheral line has an arcuate section and a straight section configured as a chord, wherein the sections configured as chords are preferably oriented facing one another.

10. The actuating apparatus according to claim 1, wherein the first actuating unit and the second actuating unit are controlled selectively, wherein the first actuator and the second actuator are substantially oriented axially parallel to one another.

11. A cam shaft adjusting apparatus, comprising at least one actuating apparatus according to claim 1.

12. An actuating apparatus, comprising: a first actuating unit comprising: a first coil body; a first actuator coil having a first actuator coil longitudinal axis, wherein the first actuator coil is wound around the first coil body; a first actuator that is electromagnetically actuated by the first actuator coil, wherein the first actuator is guided in the first coil body and movable relative to the first actuator coil; wherein the first actuator coil comprises an first arcuate section and a first straight section configured as a first chord along at least one section of first actuator coil longitudinal axis and in cross section perpendicular to the first actuator coil longitudinal axis; a second actuating unit arranged adjacent to the first actuating unit, the second actuating unit comprising: a second coil body; a second actuator coil having a second actuator coil longitudinal axis, wherein the second actuator coil is wound around the second coil body; a second actuator that is electromagnetically actuated by the second actuator coil, wherein the second actuator is guided in the second coil body and movable relative to the second actuator coil; wherein the second actuator coil comprises a second arcuate section and a second straight section configured as a second chord along at least one section of second actuator coil longitudinal axis and in cross section perpendicular to the second actuator coil longitudinal axis; and the first actuator coil longitudinal axis is parallel to the second actuator coil longitudinal axis.

13. The actuating apparatus according to claim 12, wherein the circular arc of the arcuate section has a center point angle of at least 120 degrees.

14. The actuating apparatus according to claim 12, wherein the circular arc of the arcuate section has a center point angle of between 180 degrees and 300 degrees.

15. The actuating apparatus according to claim 12, wherein the first actuating unit and the second actuating unit are arranged relative to one another such that the first straight section configured as a first chord is facing the second straight section configured as a second chord.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The actuating apparatus according to the present application is explained in greater detail below with reference to specific embodiments. Wherein:

(2) FIG. 1 shows a top view of an actuating apparatus in the direction of the two longitudinal axes of the coil bodies,

(3) FIG. 2 shows the actuating apparatus of FIG. 1 in the same sectional view,

(4) FIG. 3 shows a sectional view of a first embodiment of an actuating apparatus perpendicular to the top view along the longitudinal axes of the two coil bodies,

(5) FIG. 4 shows a sectional view of a second embodiment of an actuating apparatus perpendicular to the top view along the longitudinal axes of the two coil bodies.

DETAILED DESCRIPTION

(6) FIG. 1 shows an actuating apparatus 1 having a first actuating unit 2a and a second actuating unit 2b. The first actuating unit 2a comprises a first coil body 4a, the second actuating unit 2b comprises a second coil body 4b. A first actuator coil 6a is wound onto the first coil body 4a. A second actuator coil 6b is wound onto the second coil body 4b. The actuator coils 6a and 6b can be connected via electrical connecting lines 7. For example, a specific number of windings, for example four windings, can initially be applied onto the coil body 4a and for example form the first actuator coil 6a. At the end of these windings, the actuator coil 6a can be continued on the second coil body 4b, for example by also winding four windings onto the second coil body 4b, which then form the second actuator coil 6b. Another option is to conduct multiple windings around both coil bodies 4a, 4b, or fewer windings, but at least one winding. Another option is to alternately wind one or several windings around the first coil body 4a, then one of several around the second coil body 4b, then again one or several windings around the first coil body 4a and so on, such that the windings around the first coil body 4a form the first actuator coil 6a and the windings around the second coil body 4b form the second actuator coil 6b.

(7) The coil bodies 4a, 4b have a D-shaped structure and are directed toward one another or directed in opposition to one another with the flattened sides thereof. Actuators 8a, 8b are arranged in the interior of the coil bodies 4a. 4b and movably guided along the longitudinal axes of the coil bodies 4a, 4b.

(8) The coil bodies 4a, 4b each comprise outer peripheral lines 10, each having an arcuate section 12 and a straight section 14. The straight sections 14 of the two coil bodies 4a, 4b are oriented in this example such that they face one another. The first actuator 8a and the second actuator 8b have a cylindrical design. The two actuators 8a, 8b can also be D-shaped like the coil bodies 4a, 4b and be directed in opposition to one another with the flattened sides thereof.

(9) FIG. 2 shows another actuating apparatus 1. The coil bodies 4a, 4b are integrally formed into one coil body 4. The windings of the first actuator coil 6a and the windings of the second actuator coil 6b each orbit the two actuators 8a, 8b and can be arranged on top of one another or at an offset to one another on the coil body 4. The actuator coils 6a and 6b can be energized in opposite directions, such that the magnetic flux through the actuator coil 6b can neutralize the magnetic flux through actuator coil 6a.

(10) FIG. 3 shows a first embodiment of an actuating apparatus 1 having a first actuating unit 2a and a second actuating unit 2b. The first actuator coil 6a is in this case arranged at a spatial offset to the second actuator coil 6b in the actuating apparatus 1. The actuator coils 6a, 6b, which in this example may for example be wound in the same winding direction and electrically connected in series, partially cover one another in the viewing direction along the longitudinal axis of the first coil body 4a.

(11) FIG. 4 shows a second embodiment of an actuating apparatus 1 having a first actuating unit 2a and a second actuating unit 2b along the longitudinal axes of the coil bodies 4a, 4b. In this embodiment, the two actuator coils 6a and 6b are arranged in parallel next to one another and not at an offset to one another. Resetting springs 16 ensure that the electromagnetically deflected actuators 8a, 8b are returned to their initial positions when the electric magnets 6a, 6b are no longer energized.

(12) The present disclosure was explained with reference to two embodiments, without being limited to these embodiments. A person skilled in the art can conceive numerous modifications and designs of the apparatus according to the present disclosure without deviating from the inventive idea.

LIST OF REFERENCE SYMBOLS

(13) 1 actuating apparatus 2a first actuating unit 2b second actuating unit 4a first coil body 4b second coil body 4 coil body 6a first actuator coil 6b second actuator coil 7 electrical connecting lines 8a first actuator 8b second actuator 10 peripheral line 12 arcuate section 14 straight section 16 resetting springs