DE19917644A1 - Changing plugs for electrical devices, involves using plug that is suitable for changed plug - Google Patents

Abstract

The method involves changing over plug-in housings so that current sources can be connected with extension lines. A plug is used that is suitable for the changed plug, in which a plug is altered so that it can function as a socket/coupling for the altered plug. The plug has a filling material which encloses the sealed contact sleeve. The filling material has a groove next to the sealed contact sleeve, above the sleeve, and has a geometric form such that the plug fits snugly into the attached special plug.

Description

field of use

So that electrical equipment does not pose any danger to users go out, these funds with the protective measures according to the prior art be equipped.

Certain special line sockets and special line plugs are characterized by that two identically constructed plugs can be electrically connected. An example this is the plug DIN 56 905.

Disadvantages of the connector are:

• 1. You can use an extension cord two sockets, d. H. two power sources connect and thereby trigger risks from fire, arcing or the like. source and consumer connections are confused.
• 2. For example, with the plug according to DIN 56 905, the protective contact sleeves are used with a hanging one Coupling of the plug (plug in plug for extension cables or similar) mechanically heavily burdened. If these break off, live parts are exposed.
• 3. The protective contact sleeves (as described under 2.) are also protective conductors. According to the state of the art, protective conductors have to be protected against mechanical influences be protected.

Object of the invention

The changes to the special cable plugs and sockets mentioned are intended to eliminate the dangers described under "Disadvantages". The changes are intended to make it possible to continue to use special socket outlets that have already been installed; replacement of the sockets is not necessary due to safety concerns. Using the example of DIN 56 905 / DIN 56 906, the changes to the plug-socket and socket system are as follows:

• a) The connector according to DIN 56 905 receives a filler body, the outer protective contact sleeves encloses. The packing has a groove next to the protective contact sleeve over the Contact sleeve, as well as such a geometric shape that the connector continues fits into the special mounting socket according to DIN 56 906. The packing is solid connected to the connector components to increase the stability of the connector.
• b) The plug according to DIN 56 905 is changed to a socket by using the Collar covering protective contact sleeves, as it receives on the housing Special socket according to DIN 56 906 is described.

Advantage of the invention is in addition to the above-described improvement in the security of Plug under further usability z. T. existing equipment the possibility Plug by supplementing or replacing housing parts or built-in parts on the To be able to raise the state of the art. The user can use a low financial Design your electrical equipment safely.  

Example description of a patent application

An embodiment of the invention is based on the plug-socket or socket system described in accordance with DIN 56 905 / DIN 56 906 as an example.

Show it

Fig. 1a: Sketch of the connector according to DIN 56 905;

Fig. 1b: plug with filler;

Fig. 2a: Sketch of the connector according to DIN 56 905;

Fig. 2b: plug changed to the socket.

It is advantageous if the locking pawl of the modified plug is designed such that it engages in a correspondingly arranged recess on the housing on the housing of the socket according to FIG. 2b.

It is also an advantage if the filler body on the plug ( Fig. 1b) is shaped so that it fits positively in the socket ( Fig. 2b) or the special mounting socket according to DIN 56 905. It should be built so stable that the tensile forces generated by pulling on the cable are absorbed. This can e.g. B. can be achieved in that the protective contact sleeve described in DIN 56 905 is integrated via the contact pin in the filler body made of conductive material, for. B. by one-piece production.

Claims (6)

1. Technical change of technical equipment, here of plug devices, which are characterized by the fact that the plugs can be plugged into one another as couplings and thus, among other things, there is a risk that power sources can be connected to extension lines, characterized in that by changing the housing parts of the plug - on the one hand - the possibility is removed of electrically connecting two plugs by plugging them into one another, - on the other hand - the plug is changed so that it is suitable as a socket / coupling for the changed plug. 2. Technical change according to claim 1, characterized in that - on the one hand - the Plug is provided with a filler, in particular the connection contacts (Contact sleeves / contact pins) of the connector and on the other hand Socket / coupling modified plug is arranged a collar, which in particular the Connection contacts of the plug covers. 3. Technical change according to claims 1 and 2, characterized in that the Protective contacts of the plug due to the changed design against the effects of outside - especially mechanical influences - are protected. 4. Technical change according to one of the preceding claims, characterized in that Equipment already installed, in particular sockets, continues to be used with the modified plug can be operated 5. Technical change according to one of the preceding claims, characterized in that for the described changes to the plug, the plug is supplemented by attachments or only parts of the connector need to be replaced. 6. Technical change according to one of the preceding claims, characterized in that the system of plugs / sockets / couplers operated in connection with the modified plugs the technical prerequisites that the electrical equipment can be operated according to the current state of security technology.