DE10104239B4 - Solenoid valve - Google Patents

Abstract

Solenoid valve, consisting of a valve housing which carries a magnetic disc and a valve spool, which is surrounded by a yoke, which is supported with one end on the magnetic disk, and arranged in a valve housing magnet armature on which a towards a valve seat in the Valve housing movable valve closure member is mounted to produce depending on an electromagnetic excitation fluid connection between several in the valve housing and opening pressure medium channels 13, 14, characterized in that the magnetic disc (1) by means of a spring force on the valve housing (2) is what the magnetic disc (1) is provided with a spring property.

Description

The The invention relates to a solenoid valve according to the preamble of claim 1

From the DE 199 17 756 A1 already a solenoid valve has become known. The solenoid valve consists of a valve housing which carries a magnetic disk and a valve spool, which is surrounded by a yoke plate, which is supported with one end on the magnetic disk. In the valve housing, a magnet armature is arranged on which a valve seat in the direction of a valve seat movable valve closing member is mounted to produce depending on an electromagnetic excitation a pressure medium connection between several in the valve housing and opening out pressure medium channels or interrupt. The magnetic disk is centered on the slender sleeve portion of the valve housing and is supported on the support surface of the cartridge-shaped extended valve housing. Depending on manufacturing tolerances for the valve housing and for the magnetic disk thus the fit between the aforementioned parts varies, which can lead to a plastic deformation in the region of the contact points or the detachment of the magnetic disk.

Therefore It is the object of the present invention, a solenoid valve of the type mentioned above to improve that the aforementioned Disadvantages are avoided. It should therefore in the simplest possible way a independent of fitting tolerances, consistently secure arrangement of the magnetic disk created on the valve housing that will work out as well through a particularly cost-effective Production distinguishes.

These Task is according to the invention for a solenoid valve of the type mentioned by the characterizing features of Claim 1 solved.

Further Features, advantages and applications of the invention go in the following from the description of some embodiments with reference to several Drawings forth.

It demonstrate:

1 an overall view of a solenoid valve in cross section,

2 a top view of the in 1 in a side view shown magnetic disk,

3 a perspective view of two magnetic disks as a lot before the actual assembly process.

The 1 shows a solenoid valve, consisting of a valve housing 2 that is a magnetic disk 1 and a valve spool 8th carries by a yoke plate 9 is surrounded, with one end on the magnetic disk 1 supported. In the valve housing 2 is a magnet armature 10 arranged on the one towards a valve seat 11 in the valve housing 2 movable valve closing member 12 is mounted in dependence on an electromagnetic excitation, a pressure medium connection between a plurality in the valve housing 2 inflowing or outflowing pressure medium channels 13 . 14 produce or interrupt.

The invention provides in detail that, regardless of fitting tolerances and possibly also independent of temperature changes between the magnetic disk 1 and the valve housing 2 a radial force of constant size is effective, including as an essential feature of the magnetic disk 1 is provided with an elastic property, for example in the form of an elastic widening. The elastic property of the magnetic disk 1 becomes essential due to the location and size of a slot 3 determined, extending from the inner wall 4 the magnetic disk 1 radially in the direction of the outer wall 5 the magnetic disk 1 extends. The slot 3 extends with a constant width B from the inner wall 4 to the outer wall 5 the magnetic disk, which in detail in the plan view of the magnetic disk after 2 is shown.

The 2 illustrates the annular contour of the magnetic disk 1 , which is preferably made by punching strip steel. The at the slot 3 adjacent end sections 6 . 7 the magnetic disk 1 are preferably rounded to prevent jamming or damage to the contacting parts during assembly. The width B of the slot 3 is suitably smaller than the thickness of the magnetic disk 1 chosen, before the actual assembly of the solenoid valve meshing or snagging the supplied as loose parts for mounting magnetic disks 1 to prevent.

The 2 shows for the purpose of valve assembly only a single out of a lot set exposed magnetic disk 1 passing through the selected width B of the slot 3 , which is smaller than the thickness D of the magnetic disk 1 , do not mess with other magnetic disks 1 can hook, so that in this way an essential task to provide the loose parts is solved for a vending machine-compatible production process.

Alternatively to the above problem in the 3 in spatial representation of a lot of two with their slots 3 magnetic disks rotated 90 degrees to each other 1 ge shows, which deviate from the already explained features for magnetic disk 1 to 2 now each at the end sections 6 . 7 and are thus provided in the slot area with an embossment, wherein the size of the slot 3 essentially by the embossing depth T of a perpendicular to both sides of the magnetic disk 1 effective embossing tool is determined. Also by this measure is based on the 3 recognizable that both magnetic disks 1 remain separated from each other, so that also by the characteristics of the magnetic disk 1 to 3 the prerequisites for a vending machine-compliant delivery of the loose parts are met.

1

magnetic disk

2

valve housing

3

slot

4

inner wall

5

outer wall

6

end

7

end

8th

valve spool

9

yoke plate

10

armature

11

valve seat

12

Valve closure member

13

Pressure fluid channel

14

Pressure fluid channel

Claims (6)

Solenoid valve, consisting of a valve housing which carries a magnetic disc and a valve spool, which is surrounded by a yoke, which is supported with one end on the magnetic disk, and arranged in a valve housing magnet armature on which a towards a valve seat in the Valve housing movable valve closure member is mounted in response to an electromagnetic excitation a pressure medium connection between a plurality of in the valve housing and opening out pressure medium channels 13 . 14 produce or interrupt, characterized in that the magnetic disc ( 1 ) by means of a spring force on the valve housing ( 2 ), what the magnetic disk ( 1 ) is provided with a spring property. Electromagnetic valve according to claim 1, characterized in that the spring property of the magnetic disk ( 1 ) by the position and size of a slot ( 3 ), which extends from the inner wall ( 4 ) of the magnetic disc ( 1 ) radially in the direction of the outer wall ( 5 ) of the magnetic disc ( 1 ). Electromagnetic valve according to claim 2, characterized in that the slot ( 3 ) with a constant width (B) from the inner wall ( 4 ) to the outer wall ( 5 ) of the magnetic disc ( 1 ). Electromagnetic valve according to claim 2 or 3, characterized in that the width (B) of the slot ( 3 ) is smaller than the thickness (D) of the magnetic disk ( 1 ). Electromagnetic valve according to one of the preceding claims, characterized in that the magnetic disc ( 1 ) is produced by punching strip steel. Electromagnetic valve according to one of the preceding claims, characterized in that the on the slot ( 3 ) end sections ( 6 . 7 ) of the magnetic disc ( 1 ) are produced by a stamping process, wherein the size of the slot ( 3 ) by the impressions deep (T) of a perpendicular to the magnetic disk ( 1 ) effective embossing tool is determined.