EP0618647B1 - Electrical receptacle box - Google Patents

Abstract

The plug socket box (multiple plug-socket adaptor) has an elongated plastic housing which is formed from a lower part (1) and an upper part (which is detachably connected thereto and is in the form of a cover), in which housing a plurality of plug sockets (3) are arranged in a row, and two electrical conductors (SL) are arranged parallel and at a distance from one another on the lower part (1) in the box longitudinal direction and an earth conductor (EL) is located such that it runs in between them, said conductors running in the form of flat strips, and the two contact sockets (5) of each plug socket (3) make contact with the electrical conductors (SL) while the plug socket's earthing clip (10) makes electrical contact with the earth conductor (EL), and the plug sockets (3) are inserted with their pair (5) of contact sockets optionally longitudinally, transversely or diagonally with respect to the box longitudinal direction. Each contact socket (15) is fixed in and/or on the electrical conductor (SL) by means of a contact tab (6) and, in so doing, the contact socket pair (5) of each plug socket (3) is fixed, corresponding to its installation position, in or transversely or diagonally with respect to the longitudinal direction of the electrical conductors (SL) located on the same, by plugging, riveting, screwing or spot-welding. <IMAGE>

Description

The invention relates to a socket box with one a lower part and a detachably connected, hood-shaped Upper part, elongated plastic housing, in which several sockets are arranged in series, and on the Lower part at a parallel distance from each other in the longitudinal direction of the boxes two current conductors and an earth conductor in between Flat strip shape lie and each socket with their two Contact sockets and with their earthing bracket with the current conductors and the earth wire is electrically contacted, and the sockets with your contact socket pair either lengthways, crossways or diagonally to Longitudinal boxes are used.

Such a socket box is known from DE 39 02 124 C2. A problem with this socket box is the contacting between the sockets of the sockets and those in the housing arranged conductors for the mains voltage due slight pressure contact.

Based on this state of the art, it is the task of Invention, an outlet box of the type mentioned above to improve that the electrical contacting of the Contact sockets with the conductors in a safe and flawless Way with easy handling and inexpensive execution he follows.

This object is achieved by the characterizing Features of the two independent claims 1 and 4 alternatively solved.

The socket box is of an elongated plastic housing with a lower part and a detachably connected, hood-shaped top formed. There are several in this housing Sockets arranged. On the lower part lie in Flat strip shape in parallel spacing two Current conductor and an earth conductor running between them. Each Socket has a grounding bracket with a middle one Earth contact and two diagonally opposite, with the Sockets of the socket connected contact tabs. This Contact tabs are in the slots of the current conductor under a press fit enclosing tabs formed or as on the conductors tabs fastened by rivets, creating a secure and durable electrical contact has been achieved is.

The strip-shaped current conductors with the contact sockets and the strip-shaped earth conductors with its earthing bracket can be used as Place the pre-assembled components in the box and fix them in place. The Current conductor with contact sockets and the earth conductor with earthing bracket are between, on or under insulating bodies in one or two-part form electrically isolated from each other.

Another object of the invention is the current conductors and the Equip earth conductors with connecting contacts that are simple and inexpensive to manufacture and safe and flawless with Connectors or plug pins can be contacted.

This object is achieved by the characterizing Features of claims 10 to 15 solved.

The current conductor and the earth conductor are made of metal Flat strip shape made in one piece and have on both of them Length ends of connecting contacts for plug connectors or plug pins on. These contacts are in one piece on the conductor rails molded and designed as a plug and / or socket. The plug and socket of the connection contacts are off Flat metal material cylindrically shaped and by slitting radially resilient. The conductor rails with the Terminal contacts are inexpensive in the stamping and bending process producible.

The end contacts with plugged in or plugged in Connector pins are also in one or two parts Insulating body arranged electrically insulated.

Advantageous and beneficial configurations of the Inventive ideas are from the other subclaims remove.

Fig. 1

eine perspektivische Draufsicht auf das nach oben offene Unterteil einer Steckdosenbox mit drei Steckdosen in gleicher axialer Einbaulage,

Fig. 2

eine perspektivische Draufsicht wie in Fig. 1, jedoch mit den Steckdosen in drei verschiedenen, axial verdrehten Einbaulagen,

Fig. 3

eine perspektivische Unteransicht der beiden Stromleiter und des Erdleiters mit eingesteckten Steckdosen,

Fig. 4

eine perspektivische Unteransicht einer Steckdose mit Isoliergehäuse für die Kontaktbuchsen, Erdungsbügel, Steckzungen und Erdleiter,

Fig. 5

eine perspektivische Draufsicht auf eine eingesetzte Steckdose mit Kontaktbuchsen, Isoliergehäuse, Erdungsbügel und Steckzungen,

Fig. 6

eine perspektivische Ansicht der Kontaktbuchse mit angeformter Steckzunge,

Fig. 7

eine Seitenansicht eines Stromleiters mit angenieteten Kontaktbuchsen und ausgeformten Anschlußfahnen,

Fig. 8

eine Draufsicht auf die beiden Stromleiter nach Fig. 7,

Fig. 9 und Fig. 10

Seitenansichten der Nietverbindung zwischen Stromleiter und Kontaktbuchse im unverbundenen und verbundenen Zustand,

Fig. 11

eine Seitenansicht der Stromleiter und des Erdleiters mit Isoliergehäusen,

Fig. 12

eine Draufsicht auf Stromleiter und den Erdleiter mit Isoliergehäusen gem. Fig. 11,

Fig. 13

eine Draufsicht auf einen ausgestanzten Stromleiter mit gebogenen Anschlußkontakten,

Fig. 14

eine Seitenansicht des fertigen Stromleiters mit für die Anschlußkontakte hochgebogenen Stegen,

Fig. 15

eine Draufsicht auf einen endseitigen Abschnitt des Stromleiters mit Einsteckschlitzen,

Fig. 16

eine Stirnansicht des Stromleiters gemäß Richtung "X" in Fig. 14, welche eine zylindrisch geformte Steckbuchse als Anschlußkontakt hat,

Fig. 17

eine Draufsicht auf zwei Stromleiter und einen Erdleiter mit endseitig angeformten Anschlußkontakten und damit verbindbaren Kontaktstiften im noch nicht angesteckten Zustand der Kontaktstifte,

Fig. 18

eine Stirnansicht der beiden Stromleiter und des Erdleiters mit angeformten, buchsenförmigen Anschlußkontakten,

Fig. 19 bis 24

Draufsichten und Stirnansichten der Stromleiter und des Erdleiters mit in Variationen angeformten Anschlußkontakten und Kontaktstiften,

Fig. 25 und 26

Querschnitte durch geteilte Isoliergehäuse für die Kontaktstifte in Variation,

Fig. 27

eine Draufsicht auf einen in der Box verrasteten Isolierkörper für die Kontaktstifte,

Fig. 28 und 29

Querschnitte in Variation eines zweigeteilten Isoliergehäuses für die Stromleiter und den Erdleiter,

Fig. 30

eine Perspektive der Steckdosenbox mit in axial verdrehten Stellungen eingebauten Steckdosen.

Exemplary embodiments of the invention are shown in the drawings and are explained in more detail below. It shows:

Fig. 1

2 shows a perspective top view of the lower part of a socket box with three sockets in the same axial installation position,

Fig. 2

2 shows a perspective top view as in FIG. 1, but with the sockets in three different, axially rotated installation positions,

Fig. 3

2 shows a perspective bottom view of the two current conductors and the earth conductor with plug-in sockets,

Fig. 4

a bottom perspective view of a socket with an insulating housing for the contact sockets, earthing clip, tongues and earth conductor,

Fig. 5

a perspective top view of an inserted socket with contact sockets, insulating housing, earthing clip and tongues,

Fig. 6

a perspective view of the contact socket with molded tongue,

Fig. 7

2 shows a side view of a current conductor with riveted contact sockets and shaped connecting lugs,

Fig. 8

7 shows a plan view of the two current conductors according to FIG. 7,

9 and 10

Side views of the rivet connection between the current conductor and contact socket in the unconnected and connected state,

Fig. 11

a side view of the current conductor and the earth conductor with insulating housings,

Fig. 12

a plan view of the current conductor and the earth conductor with insulating housing acc. Fig. 11

Fig. 13

a plan view of a punched-out current conductor with bent connection contacts,

Fig. 14

2 shows a side view of the finished current conductor with webs bent up for the connection contacts,

Fig. 15

2 shows a plan view of an end section of the current conductor with insertion slots,

Fig. 16

14 shows an end view of the current conductor in the direction “X” in FIG. 14, which has a cylindrically shaped socket as the connection contact,

Fig. 17

2 shows a top view of two current conductors and an earth conductor with terminal contacts formed on the end and contact pins that can be connected to them when the contact pins are not yet plugged in,

Fig. 18

3 shows an end view of the two current conductors and the earth conductor with molded, socket-shaped connecting contacts,

19 to 24

Top views and end views of the current conductor and the earth conductor with connection contacts and contact pins molded in variations,

25 and 26

Cross sections through divided insulating housings for the contact pins in variation,

Fig. 27

a plan view of an insulated body for the contact pins, which is locked in the box,

28 and 29

Cross sections in variation of a two-part insulating housing for the current conductor and the earth conductor,

Fig. 30

a perspective of the socket box with sockets installed in axially rotated positions.

The socket box has an elongated housing Plastic that can be detached from a lower part (1) and one connected, hood-shaped upper part (2) is formed. One or more sockets (3) are in this housing (1, 2) arranged. There is also at least one of the Length ends of the housing (1, 2) a connector (SV) for Contact to the power lines or to connect one another socket box. On the lower part (1) parallel distance from each other two conductors (SL) and one earth conductor (EL) running in between each in Flat strip shape. Each socket (3) has one Insulating housing (9) with a grounding bracket (10) and one middle ground contact (4) and two opposite Contact sockets (5) with sockets (5a) for plug pins on. The contact sockets (5) are with contact lugs (6) axially non-rotatably used positions with the current conductors (SL) electrically contacted.

The contact lugs (6) according to FIGS. 1 to 6 are in slots (7) the current conductor (SL) under the press fit Plug tongues (8) formed. Have the slots (7) preferably an elongated hole shape. The tabs (8) are preferably fork-like and resilient transversely to the direction of insertion educated. The tongues (8) have one keyhole-like recess (8a) on. Furthermore, the tongues (8) have on the insertion side beveled on both sides of the recess (8a) and / or arcuate insertion edge (8b). The slots (7) can, however, also be arcuate, the Tongues (8) are curved accordingly. The tongues (8) are angled parts of the contact tabs (6).

Both current conductors (SL) contain for each socket (3) in each case several, preferably three slots (7) for different, axially rotated installation positions of the Sockets (3). These slots (7) are for each socket (3) opposite each other in pairs in the current conductors (SL) arranged so that each socket (3) in preferably three different, axially rotated positions can be installed. The sockets (5a) are preferably in the longitudinal direction of the lower part (1), transversely to the longitudinal direction or under one Angles of 45 ° are arranged.

The tongues (8) are in one piece on the contact sockets (5) molded from metal and through the insulating housing (9) Plastic or ceramic inserted. The earthing bracket (10), the are arranged in the insulating housing (9) of the socket (3) with their grounding contacts (4) preferably over one Flare bushing (11) with the earth conductor (EL) electrically fixed connected. The socket (3) is so opposite the ground wire (EL) axially rotatably connected to the same.

The current conductors (SL) are in holding pockets (12) of the lower part (1) loosely inserted. On the current conductors (SL) and the earth conductor (EL) there are contact points (13) in the form of bent connection lugs. These are used for connection other electrical devices, such as switches or the like.

In another preferred embodiment, each Contact socket (5) with its molded contact tab (6) the current conductors (SL) by riveting, screwing or welding (Spot welding) attached.

The contact tab (6) is a rivet, screw or Welding lug perpendicular to the direction of insertion of the contact socket (Socket 5a) and is in one piece on the contact socket (5) molded.

7 to 12, both current conductors have (SL) for each contact socket (5) several, preferably three molded rivet domes (14) for different, axial twisted installation positions of the sockets (3) and each Contact flag (6) is with a hole (6a) over a rivet dome (14) and by flanging the rivet dome (14) with the Current conductor (SL) riveted (Fig. 7 to 10).

On each conductor (SL) there is preferably one or are several connection lugs (15) for flat receptacles (16) electrical cable (17) for connecting electrical devices, such as switches, connectors or the like shown in Figs. 7-12.

The two current conductors (SL) are with their contact socket (5), and the earth conductor (EL) is in the area of each socket (3) a one-piece or two-part insulating body (18) arranged electrically isolated. This is from Fig. 11, 12, 28 can be seen and the two current conductors (SL) with its contact socket (5) from a base (18a) of the two-part insulating body (18) and the earth conductor (EL) lies in a groove (19) on two in alignment with the Contact sockets (5) whose sockets 5a are arranged Push-through holes (20) on the base plate (18b).

28 also shows the recess (41) in the base (18a) can be seen with which the base (18a) the contact socket (5) and their contact tab (6) and the current conductor (SL) covers, as is also in Fig. 11 and 12 and also in 5 is the case.

Furthermore, the two current conductors (SL) and the earth conductor (EL) between an upper and lower part (18a, 18b) of the Insulating body (18) can be held, as shown in Fig. 29, wherein these two parts (18a, 18b) by means of fixing pins (21) are held fixed in position in the box. The pins (21) engage in corresponding holes in the lower or upper part (18a, 18b) and for connection (Screw together) the lower part (1) and upper part (2) the insulating body parts (18a, 18b) are also compressed.

In addition, only the two conductors (SL) between the Insulator halves (18a, 18b) and the earth conductor (EL) under the one insulating body part (18a) 29 dash-dotted lines Presentation- run.

The two current conductors (SL) and the earth conductor (EL) are on one, preferably in one piece at both length ends molded connection contacts (22) for insertion into one electrical connector (SV) or for connection to 7, 8, 13 to 24 show contact pins (23).

The connection contacts (22) are of cylindrically shaped, partially open bushings (24) are formed, in which the Contact pins (23) with pins (25) are inserted (Fig. 17, 18).

Furthermore, the connection contacts (22) of cylindrical, partially open, but in Diameter smaller than the bushings (24) (26) form on which the contact pins (23) with sockets (27) are attached.

There is also the option of connecting contacts (22) of cylindrically shaped bushings (26) or flat or To form round pins (28) on which the contact pins (23) Plug sockets (27) plugged in and by screws (29) are fixed (Fig. 21 to 24).

13 to 16 shows an embodiment in which the Connection contacts (22) in one piece as a connector (30) and / or Socket (31) on the current conductors (SL) and earth conductors (EL) molded and bent by the conductor rail (SL / EL) Webs (32) at a distance from the conductor rail (SL / EL) and in Rail lengthways held and cylindrical Flat metal material shaped and radial through slot (33) are springy.

The current conductor (SL) with the contacts (22) and Connection lugs (15) and the earth conductor (EL) with the Connection contacts (22) are each made of one Flat metal strips made in one piece by stamping bending.

On the end contact pins (23) can by Insulated housing inserted into the front opening (34) of the box (35) are plugged in, which with locking tongues (36) behind the end wall edge (2a) of the upper box part (2) locked and in front of a paragraph (37) of the current conductor (SL) or the Ground conductor (EL) supports, as shown in Fig. 27.

26, the end contact pins (23) between a two-part, by clips (39) held together insulating body (38), which with its Lower part (38a) opposite the lower part of the box (1) by pins, Webs (40) or the like is fixed in position.

Furthermore, the end contact pins (23) between a two-part, on the lower part (1) and upper part (2) molded insulating housing (38) lie, as Fig. 25 shows.

Claims (18)

1. Socket-outlet box, having an elongate plastics enclosure constituted by a lower part (1) and a hood-type upper part (2) joined thereto in a removable manner, in which enclosure are arranged a plurality of socket-outlets (3) in series, and situated on the lower part (1), in parallel spacing with one another in the longitudinal direction of the box, are two current conductors (SL) and extending between them is an earth conductor (EL) in flat ribbon form, and each socket-outlet (3) is in electrical contact, by its two contact tubes (5) and by its earthing clip (10), with the current conductors (SL) and the earth conductor (EL), and the socket-outlets (3) are inserted with their pair of contact tubes longitudinally, transversely or diagonally to the longitudinal direction of the box, as necessary,
   characterised in that
   the contact lug (6) of each contact tube (5) is constituted by a tab (8) which is press-fitted into a slot (7) in the current conductors (SL) and the two current conductors (SL) for each socket-outlet (3) in each case have a plurality of slots (7), preferably three, for different, axially twisted positions of installation of the socket-outlets (3) and at the same time the slots (7) for each socket-outlet (3) are arranged in parallel opposing pairs in the current conductors (SL).
2. Socket-outlet box according to claim 1, characterised in that the tab (8) is formed as a single bent piece of bent metal onto the contact tube (5) and is configured as a fork with resilience at right angles to the plug-in direction.
3. Socket-outlet box, having an elongate plastics enclosure constituted by a lower part (1) and a hood-type upper part (2) joined thereto in a removable manner, in which enclosure are arranged a plurality of socket-outlets (3) in series, and situated on the lower part (1), in parallel spacing with one another in the longitudinal direction of the box, are two current conductors (SL) and extending between them is an earth conductor (EL) in flat ribbon form, and each socket-outlet (3) is in electrical contact, by its two contact tubes (5) and by its earthing clip (10), with the current conductors (SL) and the earth conductor (EL), and the socket-outlets (3) are inserted with their pair of contact tubes longitudinally, transversely or diagonally to the longitudinal direction of the box, as necessary,
   characterised in that the two current conductors (SL) for each contact tube (5) in each case incorporate a plurality of rivet domes (14), preferably three, for different axially twisted positions of installation of the socket-outlets (3), and each contact lug (6) is pushed with a hole (6a) over a rivet dome (14) and is riveted to the current conductor (SL) by flangeing the rivet dome (14).
4. Socket-outlet box according to any of claims 1 to 3, characterised in that the two contact tubes (5) are pushed by contact lugs (6) of each box (3) through an insulating enclosure (9) made out of plastic or ceramic, and the earthing clip (19) is situated between the contact tubes (5) in the insulating enclosure (10) and is joined by its earth terminal (4) to the earth conductor (EL) via a flange jack (11) or hollow rivet.
5. Socket-outlet box according to any of claims 1 to 4, characterised in that the current conductors (SL) are positioned loosely in holding pockets (12) in the lower part (1).
6. Socket-outlet box according to any of claims 1 to 5, characterised in that formed integrally on each current conductor (SL) are one or more terminal lugs (15) for push-on receptacles (16) with electric cable (17) for connecting electrical equipment such as switches, plug connectors, or the like.
7. Socket-outlet box according to any of claims 1 to 6, characterised in that the two current conductors (SL) with their contact tube (5), and the earth conductor (EL), are arranged in an electrically insulated manner in a one-part or two-part insulating body (18) in the region of each socket-outlet (3).
8. Socket-outlet box according to any of claims 1 to 7, characterised that a base (18a) of the two-part insulating body (18) fits over the two current conductors (SL) with their contact tube (5), and the earth conductor (EL) is situated in a groove (19) on a base plate (18b) incorporating two through-holes (20) arranged in line with the contact tubes (5).
9. Socket-outlet box according to any of claims 1 to 7, characterised in that the two current conductors (SL) and the earth conductor (EL) are held between an upper and a lower part (18a, 18b) of the insulating body (18), said two parts (18a, 18b) being held in the box by locating pins (21) in a positionally fixed manner with respect to one another or being formed on the lower and upper part (1, 2) of the box.
10. Socket-outlet box according to any of claims 1 to 9, characterised in that the two current conductors (SL) and the earth conductor (EL) have integrally formed terminal contacts (22) at one, preferably both longitudinal extremities, for insertion into an electrical plug-in connector (SV) or for connection to contact pins (23).
11. Socket-outlet box according to claim 10, characterised in that the terminal contacts (22) are formed by cylindrically shaped, partially open tubes (24), into which the contact pins (23) are pushed with push-in pins (25).
12. Socket-outlet box according to claim 10, characterised in that the terminal contacts (22) are formed by cylindrically shaped, partially open tubes (24), onto which the contact pins (23) are pushed with socket-contacts (25).
13. Socket-outlet box according to claim 10, characterised in that the terminal contacts (22) are formed by cylindrically shaped tubes (24, 26) or flat or round pins (28), onto which the contact pins (23) are pushed with socket-contacts (27) and located using screws (29).
14. Socket-outlet box according to claim 10, characterised in that the terminal contacts (22) are integrally formed as a plug (30) and/or socket-contact (31) on the current conductors (SL) and earth conductors (EL) and held spaced apart from the conductor rail (SL, EL) and in the longitudinal direction of the conductor rail by cross-pieces (32) bent away from the conductor rail (SL, EL) and are cylindrically formed from flat metallic material and constructed so as to be radially resilient by being slotted (33).
15. Socket-outlet box according to any of claims 10 to 14, characterised in that the current conductors (SL) with the terminal contacts (22) and the terminal lugs (15), and the earth conductor (EL) with the terminal contacts (22), are respectively made by being punched out of a flat metallic strip.
16. Socket-outlet box according to any of claims 10 to 16, characterised in that pushed onto the end terminal contacts (30, 31) or the contact pins (23) is an insulating body (35) which is inserted through the opening (34) in the front end of the box (1, 2), locked behind the front wall edge (2a) of the box's upper part (2) and is supported by a shoulder (37) of the current conductors (SL) or of the earth conductor (EL).
17. Socket-outlet box according to any of claims 10 to 16, characterised in that the end contact pins (23) are situated between a two-part insulating body (38) held together by clips (39), which is positionally fixed by its lower part (1) using pins, cross-pieces (40) or the like.
18. Socket-outlet box according to any of claims 10 to 17, characterised in that the end contact pins (23) are situated between a two-part insulating enclosure (38) formed on the lower part (1) and upper part (2).

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