Electromagnetic actuating device with adaptable plunger arrangement

Patent metadata

Field	Value
Publication number	US-11705262-B2
Application number	US-202017415891-A
Country	US
Kind code	B2
Filing date	Feb 11, 2020
Priority date	Mar 8, 2019
Publication date	Jul 18, 2023
Grant date	Jul 18, 2023

Abstract

The invention relates to an electromagnetic actuating device (20) having at least two actuator units (1a, 1b) which are arranged adjacently in a housing (10) and which each have electrically energizable static coil means (2a, 2b), armature means (3a, 3b) mounted so as to be movable relative to said coil means, and a plunger (4a, 4b) which interacts with the armature means (3a, 3b) and which is mounted so as to be movable along axial plunger direction (S1, S2) and which has a free end portion (5a, 5b) for engagement into an actuation partner, in particular a guide groove of a camshaft, wherein the plungers (4a, 4b) of the actuator units (1a, 1b) of the actuating device (20) are preferably arranged such that the plunger directions (S1, S2) thereof run parallel to one another, and wherein the device (20) has adjustment means (6) which are integrated in the housing (10) and which serve for varying the arrangement of at least one plunger along a plane (E) perpendicular to the respective plunger direction (S1, S2).

First claim

The invention claimed is:

1. An electromagnetic positioning device ( 20 ) comprising at least two actuator units ( 1 a , 1 b ) arranged adjacent to one another in a housing ( 10 ), the actuator units ( 1 a , 1 b ) each comprising energizable stationary coil means ( 2 a , 2 b ), armature means ( 3 a , 3 b ) mounted so as to be movable in relation to the stationary coil means ( 2 a , 2 b ), and a plunger ( 4 a , 4 b ) interacting with the armature means ( 3 a , 3 b ) and mounted so as to be movable along an axial plunger direction (S 1 , S 2 ) and having a free end section ( 5 a , 5 b ) for engaging into a positioning partner,
and the device ( 20 ) comprising adjustment means ( 6 ) integrated into the housing ( 10 ) for changing the arrangement of at least one plunger along a plane (E) perpendicular to the respective plunger direction (S 1 , S 2 ), wherein the adjustment means ( 6 ) are configured in such a manner that they enable a change in the relative arrangement of the plungers ( 4 a , 4 b ) with respect to each other independent of a relative arrangement of the respective associated armature means ( 3 a , 3 b ) and/or stationary coil means ( 2 a , 2 b ).

2. The electromagnetic positioning device according to claim 1 , wherein the adjustment means ( 6 ) are configured in such a manner that they enable a change in an axial distance (d) of the plungers ( 4 a , 4 b ) to one another and/or a change in the position of at least one respective plunger ( 4 a , 4 b ) relative to the respective other plunger ( 4 a , 4 b ) and/or relative to the housing ( 10 ).

3. The electromagnetic positioning device according to claim 1 , wherein the adjustment means ( 6 ) are configured in such a manner that they enable a movement of at least one plunger ( 4 a , 4 b ) in relation to another plunger ( 4 a , 4 b ) in a direction (R 1 , R 2 , R 3 , R 4 , R 5 ) which is perpendicular to the respective plunger direction (S 1 , S 2 ).

4. The electromagnetic positioning device according to claim 1 , wherein the adjustment means ( 6 ) comprise an adaptable bearing ( 17 a , 17 b ) of at least one plunger ( 4 a , 4 b ) of an actuator unit ( 1 a , 1 b ) in the housing ( 10 ) of the device ( 20 ).

5. The electromagnetic positioning device according to claim 1 , wherein the adjustment means ( 6 ) comprise at least one groove-shaped recess ( 7 a , 7 b ) for a displaceable bearing of a plunger ( 4 a , 4 b ) inside a bottom plate ( 10 b ) of the housing ( 10 ).

6. The electromagnetic positioning device according to claim 5 , wherein the groove-shaped recess ( 7 a , 7 b ) is linear and/or curved.

7. The electromagnetic positioning device according to claim 1 , wherein the adjustment means ( 6 ) comprise securing means ( 8 a , 8 b ) by means of which a respective plunger ( 4 a , 4 b ) and/or a plunger guide ( 9 a , 9 b ) receiving the plunger is secured to the housing ( 10 ) of the positioning device ( 20 ).

8. The electromagnetic positioning device according to claim 1 , wherein the plungers ( 4 a , 4 b ) of the actuator units ( 1 a , 1 b ) are arranged on the housing ( 10 ) by means of provided plunger guides ( 9 a , 9 b ).

9. The electromagnetic positioning device according to claim 1 , wherein at least one of the plungers ( 4 a , 4 b ) is arranged so as to be changeable with respect to its radial position in relation to the stationary coil means ( 2 a , 2 b ) and/or the armature means ( 3 a , 3 b ) of the respective actuator unit ( 1 a , 1 b ).

10. The electromagnetic positioning device according to claim 1 , wherein at least one of the plungers ( 4 a , 4 b ) is arranged eccentrically in relation to the stationary coil means ( 2 a , 2 b ) and/or the armature means ( 3 a , 3 b ) of the respective actuator unit ( 1 a , 1 b ).

11. The electromagnetic positioning device according to claim 1 , wherein at least one of the plungers ( 4 a , 4 b ) is arranged displaceable by means of magnetic force on the armature means ( 3 a , 3 b ) of the respective actuator unit ( 1 a , 1 b ).

12. The electromagnetic positioning device according to claim 11 , wherein the at least one of the plungers ( 4 a , 4 b ) is arranged radially displaceable by means of magnetic force on the armature means ( 3 a , 3 b ) of the respective actuator unit ( 1 a , 1 b ).

13. The electromagnetic positioning device according to claim 1 , wherein at least one of the plungers ( 4 a , 4 b ) is fixed to the respective armature means ( 3 a , 3 b ) and the respective armature means are arranged in the housing ( 10 ) displaceable in relation to the associated stationary coil means ( 2 a , 2 b ).

14. The electromagnetic positioning device according to claim 13 , wherein the respective armature means are arranged in the housing ( 10 ) radially displaceable in relation to the associated stationary coil means ( 2 a , 2 b ).

15. The electromagnetic positioning device according to claim 1 , wherein the positioning device ( 20 ) comprises a common connector or plug unit ( 30 ) for energizing the stationary coil means ( 2 a , 2 b ) of the actuator units ( 1 a , 1 b ).

16. A use of the electromagnetic positioning device ( 20 ) according to claim 1 for the installation on a combustion engine of a motor vehicle in order to adjust its camshaft.

17. The electromagnetic positioning device according to claim 1 , wherein the plungers ( 4 a , 4 b ) of the actuator units ( 1 a , 1 b ) of the positioning device ( 20 ) are arranged in such a manner that their plunger directions (S 1 , S 2 ) run parallel to one another.

18. The electromagnetic positioning device according to claim 1 , wherein the positioning partner is a guide groove of a cam shaft.

Assignees

• Eto Magnetic Gmbh

Inventors

• Klotz Alexander
• Rigling Timo
• Bölling Sebastian

Classifications

• H01F7/122 Primary

  by permanent magnets {(H01F7/1615, H01F7/1646 take precedence)} · CPC title

• H01F7/126 Primary

  Supporting or mounting · CPC title

• H01F7/1638

  Armatures not entering the winding · CPC title

• H01F2007/163

  with axial bearing · CPC title

• H01F2007/1692

  Electromagnets or actuators with two coils · CPC title