Electrical connectors – With insulation other than conductor sheath – Insulating body having plural mutually insulated terminals...
Patent
1997-05-29
1998-09-22
Paumen, Gary F.
Electrical connectors
With insulation other than conductor sheath
Insulating body having plural mutually insulated terminals...
439835, 439441, H01R 922
Patent
active
058106251
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an electronic device, and in particular to an automatic control device.
BACKGROUND INFORMATION
A conventional electronic device is described in a publication "Handbuch des 19"-Aufbausystem" (Handbook of the 19" Modular System) by Dr. Dirk Hesse, Markt & Technik Verlag, pages 286 to 293. The electronic device of this publication includes a basic unit and a connector unit for connecting external leads, which is structured as a multiple contact strip there. The basic unit is made up of electronic modules which are arranged in module carriers. The multiple contact strip has a housing, in which spring clips are mounted. These spring clips are electrically connected with springs of the multiple contact strip which lie on the outside of the housing and which correspond to an electronic module of the basic unit, using a bus bar. Apertures through which a suitable tool, for example a screwdriver, can be inserted in the plugged-in state of the multiple contact strip, to open the spring clips, as well as apertures through which external leads can be inserted into the spring clip, are located next to one another on the side of the housing facing away from the springs. Before an insulated external lead is introduced, the spring clip is in the closed position. It is opened by pressing down a cage tension spring with a tool. After the external lead is introduced and the tool is removed, the conductor is pressed flat against the bus bar by a clip surface of the spring clip. Since the aperture for introduction of the tool and the aperture for the external lead are arranged next to one another, on the same side of the housing, the conventional connector unit for external leads has the disadvantage that the wiring process is time-consuming and difficult, because of the small amount of space. Likewise, since the view of the apertures for the external leads can be obscured by the tool, wiring errors can occur, such that one spring clip is mistaken for another.
SUMMARY OF THE INVENTION
The present invention relates to a task of creating an electronic device, in particular an automatic control device, which makes it possible to connect external leads in simple and error-free manner.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows an exemplary embodiment of a device according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
An electronic device according to the present invention has a basic unit, not shown in the drawing, which can be composed in known manner of modules plugged into a module carrier. Furthermore, the basic unit is provided with a connector unit for connecting external leads, the cross-section of which is shown in the FIG. 1. In an automatic control device, the connector unit is needed, for example, for connecting actuators and sensors to peripheral modules. The necessary wiring work takes place at the site of use. In a housing 1 of the device, several spring clips are arranged behind one another, perpendicular to the plane of the drawing; only a spring clip 2 is shown in FIG. 1. The spring clip 2 is connected with a spring 4, which serves to contact a front plug, not shown, of a peripheral module, via a flat contact 3. A lever 5, which is rotatably mounted, rests on the back of the flexible shank of the spring clip 2. On the back of the lever 5, in turn, there is a driving surface for a tool 6, 7 or 8, for example a screwdriver, which can be inserted into the housing 1 through apertures A, B or C, glides down the back of the lever 5, and presses it down at most up to a contact surface 9. The tip of a screwdriver as the tool in the apertures, as well as the position of the rotary-mounted lever 5 and the spring clip 2 in the contact position, are shown with broken lines in FIG. 1. When the spring clip 2 is open, a wire 10, also shown with a broken line, can be inserted through an aperture 11, which is also accessible from the direction A. To hold several wires one behind the other in the device, a cable channel 12 is provided above t
REFERENCES:
patent: 4576429 (1986-03-01), Hardouin et al.
patent: 4768981 (1988-09-01), Hohorst
patent: 5449300 (1995-09-01), Yoon
patent: 5679021 (1997-10-01), Kramer
patent: 5685735 (1997-11-01), Hohorst
Hess, Dirk, "Handbuch des 19--Aufbausystems", Markt & Technik Verlag, No. 286 (1986), pp. 286-293.
Klein Klaus
Mittnacht Franz
Paumen Gary F.
Siemens Aktiengesellschaft
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