Electrical connectors – With supporting means for coupling part – Coupling part or mating part extending into panel opening
Reexamination Certificate
1999-08-11
2001-09-18
Luebke, Renee (Department: 2833)
Electrical connectors
With supporting means for coupling part
Coupling part or mating part extending into panel opening
C439S273000, C439S271000, C277S370000
Reexamination Certificate
active
06290537
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to an arrangement for electrical plug-in connection of an electronic module fitted in an automatic transmission for motor vehicles, especially a selector unit with one feed line situated outside the transmission.
In automatic transmissions, such as have been variously produced by the applicant, the transmission electronics is usually situated inside the transmission housing and connected, via a plug-in connection which penetrates the transmission housing, with the feed line that is outside the automatic transmission. In this regard, it has proved advantageous that the plug-in connection usually consisting of a plug and a matching plug being disposed in the housing perpendicularly, i.e. in the assemblage direction of the selector unit placed in the transmission with the electronic module.
The problem arises here that there have to be compensated manufacturing tolerances which result in a play between the bore in the transmission housing and the plug penetrating said bore. One possibility of compensating the manufacturing tolerances consists in that the plug-in connection be floatingly supported in the transmission housing, but such a floating support has the added disadvantage of considerable space needed vertically; difficulties also appear in contacting the pressed screen customarily used in the electronic module as electrical conductor with the junctions in the case of a floating support of said plug-in connection.
The problem to be solved by this invention is to provide an electrical plug-in connection which overcomes said disadvantages and makes possible for a rigid connection with the transmission housing while, at the same time, contacting the stamped screen without problem placed in the electronic module inside the transmission.
SUMMARY OF THE INVENTION
The plug-in connection according to the invention, which is shaped as a rigid connection with the transmission housing, makes possible an easy and economic contacting of the stamped screen in the transmission housing and, at the same time, reduce total height by virtue of said direct contacting. The plug inserted with play in the bore of the transmission housing and connected with the stamped screen in the electronic module has, on its outside, several grooves or ribs which extend forming an angle with the longitudinal axis. While the matching plug in the form of a bushing, which is superimposed on the plug creates the connection with the current supply disposed outside the housing. The matching plug has on its inner wall ribs or grooves adapted to the grooves and ribs of the plug. A bayonet interlocking is implementing when the matching plug is superimposed on the plug.
The tolerance between plug and bore is compensated by the inserted molded seal, wherein it is possible, almost without effort by virtue of the bayonet interlocking, to superimpose the matching plug with deformation of the molded seal.
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Japanese Abstract, No. 08031501A dated Feb. 2, 1996 to Matsumoto Masaji Aitatsuku:KK.
Japanese Abstract, No. 10064618 A dated Mar. 6, 1998 to Yazaki Corp.
Davis & Bujold P.L.L.C.
Hammond Briggitte R.
Luebke Renee
ZF Friedrichshafen AG
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