Method for producing an electromagnetic valve assembly and electromagnetic valve assembly

Patent metadata

Field	Value
Publication number	US-11092259-B2
Application number	US-201916959764-A
Country	US
Kind code	B2
Filing date	Jan 2, 2019
Priority date	Jan 4, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

The invention relates to a method for producing an electromagnetic valve assembly (10), a planar metal sheet (12), which has through-slots (16) extending parallel to a longitudinal axis (14) of the sheet, and a disc (18), which has disc projections (22) that are complementary in shape to the through-slots (16), being provided, the disc projections (22) being engaged with the through-slots (16), and a coil housing (38) then being formed by the planar metal sheet (12) being shaped by non-overlapping roller-deforming along the longitudinal axis (14) of the sheet, around a circumference (20) of the disc (18). The invention further relates to an electromagnetic valve assembly (10) which has been produced in particular by means of such a method.

First claim

The invention claimed is:

1. A method for producing an electromagnetic valve assembly ( 10 ), comprising the steps of:
providing a planar metal sheet ( 12 ) extending along a sheet longitudinal axis ( 14 ) that has at least one through-slot ( 16 ) extending parallel to the sheet longitudinal axis ( 14 );
providing a disc ( 18 ) having at least one disc projection ( 22 ) arranged on a circumference ( 20 ) of the disc ( 18 ) and complementary in shape to the through-slot ( 16 );
engaging the disc projection ( 22 ) with the through-slot ( 16 );
forming a coil housing ( 38 ) by non-overlapping roller-deforming the planar metal sheet ( 12 ) along the sheet longitudinal axis ( 14 ), around the circumference ( 20 ) of the disc ( 18 ) to a tube portion ( 24 ).

2. The method according to claim 1 , characterized by providing an engagement projection ( 28 ) at a first end region ( 26 ) of the planar metal sheet ( 12 ) along the sheet longitudinal axis ( 14 ) thereof, and an engagement recess ( 32 ) at a second end region ( 30 ) of the planar metal sheet ( 12 ) along the sheet longitudinal axis ( 14 ) thereof, said engagement recess being complementary in shape to the engagement projection ( 28 ), the engagement projection ( 28 ) form-fittingly engaging with the engagement recess ( 32 ) during the roller-deforming.

3. The method according to claim 1 , characterized by providing at least three through-slots ( 16 ) in the planar metal sheet ( 12 ) and at least three disc projections ( 22 ) on the disc ( 18 ), a length spacing (Δ 1 ) between any two through-slots ( 16 ) being equal to the length ( 1 ) of an arc between any two disc projections ( 22 ).

4. The method according to claim 1 , characterized by providing the at least one through-slot ( 16 ) in an edge region ( 36 ) of the planar metal sheet ( 12 ) that extends parallel to the sheet longitudinal axis ( 14 ).

5. The method according to claim 1 , characterized by providing the disc ( 18 ) as an annular disc ( 42 ).

6. The method according to claim 5 , characterized by inserting a sleeve ( 52 ) into the annular disc ( 42 ), said sleeve comprising an armature ( 54 ) and a pole piece ( 56 ).

7. The method according to claim 1 , characterized by introducing a coil assembly ( 40 ) into the coil housing ( 38 ).

8. An electromagnetic valve assembly ( 10 ), produced by a method according to claim 7 , comprising the coil housing ( 38 ) and the coil assembly ( 40 ) arranged in the coil housing ( 38 ), wherein the coil housing ( 38 ) comprises the tube portion ( 24 ) having equidistantly arranged through-slots ( 16 ) and the disc ( 18 ) having equidistantly arranged disc projections ( 22 ), wherein the disc projections ( 22 ) engage with the through-slots ( 16 ), and wherein the coil assembly ( 40 ) rests on the disc ( 18 ).

9. The electromagnetic valve assembly ( 10 ) according to claim 8 , characterized in that the tube portion ( 24 ) comprises a seam ( 34 ), with an engagement projection ( 28 ) and an engagement recess ( 32 ) form-fittingly engaging with one another at the seam ( 34 ) to hold the tube portion ( 24 ) together, said engagement recess being complementary in shape to the engagement projection ( 28 ).

10. Electromagnetic valve assembly ( 10 ) according to claim 8 , characterized in that the disc ( 18 ) is designed as an annular disc ( 42 ), wherein a sleeve ( 52 ) that comprises an armature ( 54 ) and a pole piece ( 56 ) is inserted into the annular disc ( 42 ).

Assignees

• Vitesco Tech Gmbh

Inventors

• Meissgeier Henry
• Muehlbauer Andreas

Classifications

• F02M51/0664

  having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding · CPC title

• B21D53/10 Primary

  parts of bearings; sleeves; valve seats or the like · CPC title

• H01F7/081

  Magnetic constructions · CPC title

• H01F7/1607

  Armatures entering the winding · CPC title

• H01F2007/083

  External yoke surrounding the coil bobbin, e.g. made of bent magnetic sheet · CPC title