Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/46—Bases; Cases
  • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
  • H01R13/521—Sealing between contact members and housing, e.g. sealing insert

Definitions

• the invention relates to an actuating device, in particular actuating magnet, for driving valves, with a housing and a coil body arranged therein, in which a switching part is guided and which is provided with the winding of a conductor which is connected by means of a holding device with contact parts of a connector plate, which is placed while maintaining a distance by means of a plug on theticianêtsflä- surface of the housing, wherein the plug insert for the installation of an annular sealing member has a contact surface which extends groove-like within the plug insert and wherein in the installed state by pressing the sealing member at least in the direction the bobbin occurring gap between the plug plate and the outer peripheral surface of the housing is sealingly closed.
• actuating devices which are also referred to as actuation magnets
• the switching part is essentially formed from a tubular bolt, which can be predetermined given electrical excitation of the coil via a device plug which can be connected to the connector plate Traveling distance covers this and triggers an actuation or switching operation, for example, in a valve shutting off and guiding fluid flows triggers. If these known actuators used in areas of high humidity, as it results, inter alia, in the condensation and condensation, the penetrates
• the plug-in insert has an internal thread and two cutting inserts which are each provided with a spline. see and are separated from each other by a groove-shaped abutment shoulder for receiving the annular sealing part.
• the plug-in insert can be firmly connected with the connector plate and then together with the connector plate with the housing of the actuator with a simple production.
• the gap formation in the region of the plug plate between the potting compound and the outer peripheral surface of the housing is very narrow and is closed by the annular sealing part in the compressed state then the sealing part is stretched very strongly in the direction of the gap and compressed in a pressing manner , which leads to a high material load in the annular sealing part and in particular due to the sharp-edged design of the cutting inserts damage to the sealing part can not be excluded, which may affect the sealing function such that it comes in later operation to failure of the actuator and thus to failures in hydraulic circuits to which the actuator is operatively connected.
• the present invention seeks to provide a small-scale as possible actuating device, which is particularly suitable for use in vehicle technology and still functional at high humidity in operation - even over a long period of use - is , This object is achieved by an actuator with the features of claim 1 in its entirety.
• the groove depth is selected such that in the unpressed state about half of the sealing part is received in the groove and that in the installed state, the groove is completely filled with the sealing part to a supernatant, the sealing closes the gap occurring, the moisture at the location of the attachment of the connector plate can no longer get into the housing interior and in particular not to the bobbin with the winding.
• the annular sealing part is chambered in a groove of the plug insert, which also has a large volume of displacement space into which the sealing part can be displaced during encapsulation with the plastic potting compound, harmful compression, shear and shear forces are on the sealing part largely excluded, which ensures that even over long periods of use ' the sealing function is maintained in a reliable manner.
• the chambered sealing part retains, in particular outwardly, its part-annular sealing surface and can thus make the said gap seal with a high degree of elasticity. Since the groove in the plug-in insert on the groove bottom can be provided with rounded transitions to the transverse side walls, sharp-edged, edge-geometries which possibly impair the sealing effect are avoided within the plug-in insert. Without being displaced or pressed in, as shown in the prior art, in a sealing gap extending parallel to the longitudinal axis of the plug insert, the preferably O-ring-shaped cross section of the sealing part is maintained, which can best fulfill its sealing function for the gap.
• FIG. 2 shows a partially sectioned end view of the actuating device according to Fig.1.
• the switching device comprises a bobbin 10 made of plastic material, wherein the bobbin 10 has two annular flanges 12 end, between which the winding package 14 of a conductor 16 extends, the pertinent coil has been omitted for ease of illustration in FIG.
• a switching part (not shown) out, in particular with the pertinent switching part control and actuate hydraulic valves.
• the bobbin 10 is surrounded by a substantially cylindrically shaped housing 18 made of metallic material.
• the pertinent structure is common in solenoid actuators, so that will not be discussed in more detail here at this point.
• the annular flange 12 of the bobbin 10 which faces the environment, forms a ring plate 20 ( Figure 2), which engages with a molded-on holding means 22 an end-side groove-shaped recess 24 in the housing 18, wherein both the ring plate 20 as Also, the holding device 22 at least partially leave free along its outer contour a radial gap 26 to the housing parts facing them 18, which is ausspritzbar with a plastic potting compound 28.
• the potting compound 28 is likewise removed in FIG. to let.
• the ring plate 20 For centering the ring plate 20 within the inner periphery of the housing 18, it can be kept at a distance and center-centered for the encapsulation or encapsulation with the potting compound 28 over radial projections 30 protruding along its outer circumference.
• the radial projections 30 are dimensioned such that they center the holding device 22 sufficiently accurately for insertion into the encapsulation or extrusion mold. After insertion into the mold, however, a gap is formed between the housing 18 and the holding device 22.
• the holding device 22 has a center piece 32, which is designed as a flat plate and projects radially beyond the groove-shaped recess 24.
• the holding device 22 has at its end on the plate-shaped center piece 32, two pin-like extensions 34, around which the ends of the conductor 16 are wound in order to ensure such a firm connection of the conductor 16 with the holding device 22.
• two pairs of webs 36 are provided on the upper side of the middle piece 32 in each outer region, each having a receptacle with a V-shaped cross section, in which the conductor 16 can be inserted.
• a guide device (not shown in detail), by means of which the conductor 16 intersects in the addressed region and without touching the winding package 14 at this point is led running.
• the conductor 16 is guided by means of the holding device 22 over a predetermined distance between the respective pairs of webs 36 such that they for direct contact with two contact parts 38 of a connector plate 40 of at least one side, but preferably of all Pages off, freely accessible.
• the respective contact part 38 of the connector plate 40 has a roof-like connecting piece 42 which can be placed from above onto the conductor piece between the two pairs of webs 36.
• the two free leg pieces of each connecting piece 42 which include the conductor 16 within the holding device 22, can be compressed and then welded together, wherein a conductive connection between the respective contact part 38 and the associated conductor piece of the conductor 16 is established.
• the roof-like connecting pieces 42 are each arranged outwardly offset from the respective extension 34 and are each connected to a flat contact track 44, which is arranged perpendicular to it and has a plug tab 46 of the plug plate 40 connected to it the top of the switching device protrudes.
• a pertinent contact path 40 is shown in FIG. 1 only for the ground connection, which is likewise designed as a plug lug 46, which, like the other connector lugs 46, is upwards and for connection to female plug parts of a device plug (not shown) for the subsequent power supply is provided.
• All contact tracks 44 and plug lugs 46 can be cut or punched out of a planar board and are then encapsulated with the plastic material of the connector board 40.
• the plug plate 40 has substantially centrally a plug insert 48 which is formed in the manner of a cylindrical sleeve. In the case of this plug-in insert 48, the plug-in plate 40 can be placed on the outer peripheral surface 50 while maintaining a distance as the outer wall of the housing 18.
• the plug insert 48 has a contact surface 54 for the contact of an annular sealing part 52 (FIG. 1), which extends in a groove shape within the plug insert 48.
• the groove depth of the groove 56 is selected such that compressed state according to the illustration of Figure 1 only about half of the sealing member 52 is added.
• the cross section of the groove 56 is rectangular, in particular square, wherein in the unpressed state, the sealing part 52 abuts at least along two diametrically opposed sealing lines 60 on the inside of the groove 56.
• the two side walls 62 and 64 of the groove 56 are perpendicular to the
• a displacement chamber 68 is formed.
• the displacement chamber 68 itself is in turn subdivided via the annular sealing part 52 into two partial spaces 68a, b.
• the groove 56 in the region of the transition between their respective side walls 62,64 and the groove bottom 66 seen in cross-section arcuate transitions.
• an additional sealing line with the walls of the groove 56 is realized to that extent.
• the plug insert 48 is subdivided by the outer peripheral side introduced groove 56 into two areas 70,72, of which the one portion 70 is received in the housing 18 such that the groove 56 with its one lower side wall 64 by a step 74 offset with the outer peripheral surface 50th of the housing 18 closes. Insofar, the step 74 also limits the gap 58 to be sealed later.
• the other region 72 of the plug insert 48 is stepped in the direction of the plug plate 40 and on the side facing away from the groove 56 of the shoulder 76 thus formed is a contact surface 78 for serving as a ground terminal contact portion 38 of the connector plate 40 is present.
• the plug insert 48 is formed from an electrically conductive, in particular metallic material and the plug insert 48 penetrates the said ground connection in the form of the contact part 38. The height of the plug insert 48 is selected such that it extends between the inner wall 80 of the housing 18 to the Top 82 of the connector plate 40 extends.
• an inlet space 84 is limited, which serves for supplying the potting compound 28 for sealing purposes, wherein the molded part 52 is pressed into the displacement space 68 of the groove 56 during encapsulation of the parts shown in Figure 1, until the elastic parts of the sealing part 52 are in abutment with the side walls 62,64 and with the groove bottom 66 of the groove 56.
• inlet passages 86 are present.
• the plug insert 48 is formed on the outer peripheral side as a smooth socket part; However, it would also be conceivable od a corrugation. Like. Provide to facilitate the connection with the plastic potting compound 28.

Landscapes

• Magnetically Actuated Valves (AREA)
• Electromagnets (AREA)
• Lift Valve (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Vehicle Body Suspensions (AREA)
• Massaging Devices (AREA)
• Valve Device For Special Equipments (AREA)
• Iron Core Of Rotating Electric Machines (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=34962603

Family Applications (1)

Country Status (7)

Families Citing this family (2)

Family Cites Families (8)

• 2004
  • 2004-06-16 DE DE102004029185A patent/DE102004029185A1/de not_active Withdrawn
• 2005
  • 2005-04-01 PL PL05716489T patent/PL1756916T3/pl unknown
  • 2005-04-01 DE DE502005010388T patent/DE502005010388D1/de active Active
  • 2005-04-01 WO PCT/EP2005/003419 patent/WO2005124934A1/fr not_active Application Discontinuation
  • 2005-04-01 JP JP2007515791A patent/JP2008503074A/ja active Pending
  • 2005-04-01 AT AT05716489T patent/ATE484863T1/de active
  • 2005-04-01 US US11/597,419 patent/US7471177B2/en not_active Expired - Fee Related
  • 2005-04-01 EP EP05716489A patent/EP1756916B1/fr not_active Not-in-force

Non-Patent Citations (1)

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