EP1124285A2 - Appliance plug socket - Google Patents

Abstract

The socket has a base body forming an electrically insulating contact bearer and conducting contact elements with a first contact end for a cable wire end and a second contact end for a counter contact element of an electrical unit. Each contact element is a flat strip and forms a combination contact element. Its first contact end has a blade contact with a wire insert slot and a clamp contact for a cable wire end that are optionally usable. The socket has a base body (1) forming a contact bearer of electrically insulating material and at least two electrically conducting contact elements (2) fixed in the base body with a first contact end (2a) for connection to a cable wire end (3) and a second contact end (2b) for plug contact with a counter contact element (4) of an electrical unit (5). Each contact element is a flat strip and forms a combination contact element. Its first contact end has a blade contact with a wire insert slot and a clamp contact for a cable wire end that are optionally usable.

Description

The invention relates to a device socket for manufacture an electrically conductive connection between Electrical components, according to the preamble of the claim 1.

In embodiments known from practice, can Device sockets can be designed very diverse, whereby their contact elements on the one hand firmly with electrical Connection wires are connected and on the other hand electrically conductive with suitable connectors or Device connectors are detachably pluggable. The electric conductive contact elements of these known designs are generally in a kind of contact carrier attached from electrically insulating material. Disadvantages of many known embodiments are seen in the fact that they are often proportional are cumbersome and relatively close to others electrical components adapted and firmly mounted with it are.

The invention has for its object a device socket the prerequisite in the preamble of claim 1 To create a kind that is characterized above all by one relatively simple and robust construction, due to its versatile, variable adaptability to other electrical Components as well as their relatively easy assembly and disassembly and thus by a easy interchangeability.

This object is achieved according to the invention by the indicator of claim 1 solved, advantageous embodiments and further developments of this invention in the Subclaims are specified.

An essential starting point of the present invention is seen in the fact that each contact element for example in the form of a flat sheet metal strip and in the form a combination contact element is designed in such a way that his first connection contact end on the one hand provided with a cable wire insertion slot Cutting contact and on the other hand one for clamping a contact device assigned to a cable wire end having, cutting contact and contact device can be used optionally. The device socket designed in this way is an extremely good prerequisite for this shows that it is used in a very versatile manner and easily interchangeable with the corresponding ones Provide contact elements and other electrical Components can be assembled.

According to an advantageous embodiment of the invention is the or each contact element in a continuous, appropriate slot in the base body and by an outwardly protruding, bent Fixing tabs axially immovable in the body fixed. The device socket according to the invention can in this way relatively easily and quickly with the for the number of contact elements required for each application (e.g. two, three or four contact elements) be equipped. In any case, however, is for it ensured that each contact element is axially immovable is fixed in the base body, so that during manufacture of detachable connector the contact elements be held immovably in the body.

As explained in detail using the drawing can be introduced cable wire ends of electrical cables very simple, reliable and at the same time always exchangeable conductive with the corresponding connection contact ends the associated contact elements connected become. This can either be done through the Cutting contact or through the terminal contact device every contact element happen. This is the terminal contact device essentially constructed so that in Basic body each approximately parallel to a contact element running, to the outside as well as to the contact element open cable wire receiving groove is provided and that they have a recorded in this basic body, by accessible from outside and in the area of the cable wire receiving groove against a side surface of the contact element has screwable screw terminal.

The same at the same contact end of each contact element provided cutting contact is simple Formed so that the cutting edges provided cable wire slot in the longitudinal direction of the contact element extends to the free end of the first Cutting contact open out and one has the slot width matched to the end of the cable wire, that when longitudinally inserting an associated cable wire end cutting through a cable wire insulation jacket an electrically conductive connection with manufactured the contact element and this cable wire end can be clamped.

A particularly advantageous development of this invention results from the fact that the first terminal contact end each contact element is designed as an insulating part Cable wire hold-down is assigned to the a receiving slot for the protruding from the base body (outstanding) free end section of the first Connection contacts as well as a transverse continuous cable wire insertion opening for receiving of the associated, provided with the insulating jacket Has cable wire end. This cable wire hold-down thus also ensures a secure fixing of the corresponding cable wire end in the slot the cutting contact. In addition, you can all hold downs of the same design also still at the same time as connecting elements to further with the first connection contact ends of the Contact elements connectable electrical components can be used, as will be shown later with some Examples or the drawing can be seen.

The device socket according to the invention also has all because of their relatively simple structure and their Versatile and variable design and adaptation options the requirements in an extremely advantageous manner for a standard-compliant version. In this Trap is characterized above all by a standard Arrangement and distribution of the contact elements, through standard-compliant design and main dimensions as well thanks to a dust and moisture-proof standard Execution.

Fig.1

eine Vertikalschnittansicht durch ein erstes Ausführungsbeispiel der erfindungsgemäßen Gerätesteckdose, bei Benutzung eines Schneidkontaktes;

Fig.2

eine im wesentlichen gleichartige Vertikalschnittansicht wie Fig.1 lediglich im Bereich eines Kontaktelementes, bei Benutzung einer Klemmkontakteinrichtung;

Fig.3

eine Perspektivansicht der Gerätesteckdose mit zugeordneten Kabeldraht-Niederhaltern vor dem Zusammenbau;

Fig.4

eine ähnliche Perspektivansicht wie Fig.3, bei montierten Kabeldraht-Niederhaltern;

Fig.5

eine vertikal geschnittene Perspektivansicht eines anderen Ausführungsbeispieles der Erfindung, im auseinandergezogenen Zustand von Gehäuseoberteil und Gehäuseunterteil;

Fig.6

eine ähnliche Perspektivansicht wie Fig.5, jedoch im zusammengebauten Zustand von Gehäuseoberteil und Gehäuseunterteil.

The invention is explained in more detail below with the aid of a few exemplary embodiments illustrated in the drawing. Show in this drawing

Fig. 1

a vertical sectional view through a first embodiment of the device socket according to the invention, when using a cutting contact;

Fig. 2

a substantially similar vertical sectional view as Figure 1 only in the area of a contact element when using a terminal contact device;

Fig. 3

a perspective view of the device socket with associated cable wire hold-down devices before assembly;

Fig. 4

a perspective view similar to Figure 3, with assembled cable wire hold-down;

Fig. 5

a vertically sectioned perspective view of another embodiment of the invention, in the exploded state of the upper housing part and lower housing part;

Fig. 6

a similar perspective view as Figure 5, but in the assembled state of the upper housing part and lower housing part.

The device socket according to the invention is - as such known - for the production of an electrically conductive Connection between corresponding electrical components built up. This device socket is initially based on of Figures 1 and 2 explained in their basic structure.

According to Figures 1 and 2 contains the invention Appliance socket essentially an externally approximately Cube-shaped or cuboid housing-like basic body 1, which is a type of contact carrier or contact element carrier forms for several electrically conductive contact elements 2 and a substantially electrically insulating Material is made, for example from a preferably polyamide reinforced with glass fibers (e.g. 30%) (e.g. PA6). Depending on the intended use of this device socket are usually at least in the base body 1 two, but a maximum of four contact elements 2 in a suitable manner Way set; in Fig.1 there are two such Contact elements 2 approximately at right angles to each other around their Longitudinal axis shown rotated to the base body 1.

These contact elements 2 are opposite to each other Ends formed as connection contact ends 2a, 2b. Here is the one, first connection contact end 2a, that is to say in FIGS. 1 and 2 upper connection contact end 2a, with a cable wire end 3 connectable, while in Figures 1 and 2 each lower, second connection contact end 2b with a in Fig.1 only indicated by dash-dotted counter contact element 4 of a likewise only indicated by dash-dotted lines, suitably trained electrical component 5 can be put together. Every contact element 2 expediently points to its - in Figures 1 and 2 - lower second contact end 2b one for free Open, roughly fork-shaped clamp opening 2b 'for receiving the mentioned plug-shaped counter-contact element 4 of the other electrical component 5.

As a comparison representations in the figures 1 and 2 clearly shows, is each contact element 2 of this device socket according to the invention approximately in shape a flat sheet metal strip and in the form of a combination contact element executed in such a way that his first Terminal contact end 2a one with one Cable wire insertion slot 6 provided cutting contact 7 and on the other hand one for clamping the cable wire end 3 has assigned clamping contact device 8, where cutting contact 7 and terminal contact device 8 can be used optionally as follows explained in more detail with reference to Figures 1 and 2 becomes.

Beforehand it should be mentioned that each contact element 2 in is essentially of the same design and in one matching, continuous receiving slot 9 in the Basic body 1 inserted and inserted in its Position by an outwardly protruding, bent Fixing tabs 9a axially immovable in the base body 1 is fixed (in advance of the explanations to Figures 3 and 4 already mentioned that there which are bent into a suitable recess of the base body 1 Fixing tab 9a can be seen particularly clearly are).

On the basis of FIG. 2, it will first be explained how the terminal contact device 8 for the upper terminal contact end 2a of or each contact element 2 is essentially formed be and can be used. This is in the main body 1 each approximately parallel to the / each contact element 2 running, to the outside and to the contact element 2 open cable wire receiving groove 10 is provided. The or each terminal contact device 8 has one accommodated in the base body 1, from the outside accessible and in the area of the cable wire receiving groove 10 against a side surface 2c of the contact element 2 screwable screw terminal, which is essentially a Clamping screw 11 with screw head accessible from the outside lla, a non-rotatably held in the base body 1 Screw nut (e.g. square nut) 12 and a Contains spring plate 13 against which the clamping screw 11 presses, which in the cable wire receiving groove 10th inserted, stripped cable wire end 3 against the Side surface 2c of the contact element 2 clamped is so that an electrically conductive contact with it is made.

The vertical sectional view in Fig.1 shows the two rotated approximately at right angles to one another in the base body 1 recorded contact elements 2 simultaneously in two different views. Although only next to that in Fig.1 right contact element 2 the previously described terminal contact device 8 - without pinched cable wire end - you can see, of course, both or all upper, first connection contact ends 2a in the same way assigned to a terminal contact device 8. At the same time, however - as already continues set out above - each contact element 2 on its upper, first terminal contact end 2a also the cutting contact 7 on. The opposite runs with each other Cutting edges 6a provided cable wire insertion slot 6 in the longitudinal direction of the or each contact element 2. It is also provided that this Cable wire insertion slot 6 to the (upper) free end this first connecting contact end 2a opens out (as especially with the left contact element 2 in Fig.1 can be seen) and that one of the cable wire end 3 adjusted slot width SW has that at Longitudinal insertion (from above in Fig. 1) of the associated one Cable wire end 3 in the contact area of this slot 6 or the cutting edges 6a of the cable wire insulating jacket 3a cut and thereby a electrically conductive connection with the contact element 2 is produced, at the same time - as also on left contact element 2 can be seen in Fig.1 - this partially stripped cable wire end 3 in the slot 6 can be clamped.

Although when using the cutting contact 7 the cable wire ends 3 already relatively reliable in Cable wire insertion slot 6 of the corresponding one Contact element 2 can be clamped, it will for viewed particularly useful if - in the drawing each upper - first terminal contact end 2a each Contact element 2 a formed as an insulating part Cable wire hold-down 14 is assigned. Every cable wire hold-down device 14 has a receiving slot 15 for that far enough from the base body 1 above free end portion of the associated first connecting contact 2a and one across it running, continuous cable wire insertion or Push-through opening 16 for receiving the associated, with the cable sheath 3 provided with the insulating jacket 3a, as in connection with the right contact element 2 is illustrated in more detail in Fig.1. Each of these similarly designed cable wire hold-down device 14 furthermore has a through-cable opening 16 and push-on cap 17 containing the receiving slot 15 to attach to the free one above End section of the associated first connection contact end 2a on. Furthermore, each hold-down 14 has one protruding downward from its push-on cap 17 Snap hook 18, which fits into the base body 1 incorporated hook groove 19 engages and therein - as is particularly illustrated in FIG. 4 - fixed in the assembled position of the hold-down device 14 is.

Each cable wire hold-down device 14 holds in the assembled state - as is particularly illustrated in Fig. 1 - the respective associated cable wire end 3 extremely reliable in slot 6. This is further supported by that the base body 1 in the area below the push-on cap 17 one into the cable wire push-through opening 16 above, the corresponding cable wire end 3 has particularly fixing projection 20, which is particularly clearly expressed in Fig.1 is coming.

By using this cable wire hold-down device 14 for fixing the cable wire ends in the cutting contacts 7 of the associated contact element 2 can however also the insertion and clamping of each cable wire end 3 in the insertion slot 6 of each cutting contact 7 be relieved. First, the one with the Insulating jacket 3a providing cable wire end 3 - about as shown in Fig.1 - far enough in the push-through opening 16 of the hold-down cap 17 pushed in. The hold-down 14 is then with the cable wire end 3 - according to Fig.1 - from above the free end portion of the associated terminal contact 2a plugged in and on this terminal contact end 2a pushed down so far vigorously that - as mentioned above - the insulating jacket 3a of the Cut through cutting edges 6a of the insertion slot 6, thereby an electrically conductive contact to the contact element 2 manufactured and at the same time the cable wire end 3 is clamped. In this assembly or Every cable wire hold-down device will be assembled 14 reliably with the help of its snap hook 18 or set in the base body 1, however, at any time easily detachable and removable if necessary to make any changes to the make electrical connections to be able to.

For the previously described assembly of the cable wire hold-down 14 or the handling of these at all Hold-down device 14 especially with relatively small dimensions each hold-down device 14 approximately in the manner illustrated in Figure 3 with a Holding or mounting lug 14a in one piece with the Be placed cap 17 that this assembly flag 14a after mounting the hold-down device 14 the associated terminal contact end 2a and on the base body 1 removed easily, e.g. canceled can be.

As in particular on the left contact element 2 in Fig.1, but can also be seen, for example, in Fig.3 the first terminal contact end protruding upwards 2a of each contact element 2 one next to the cable wire end 3 in the receiving slot 15 of the hold-down device 14 or the hold-down cap 17 protruding, tongue-shaped, freely extended to the outside Contact approach 2d. For this is the mentioned slot 15 in the plan area of the contact approach 2d by a cross-slit in cross section Through opening 21 extended outwards, into the on the one hand, the tongue-shaped contact projection 2d protrudes (see FIGS. 1 and 4) and on the other hand from the outside a kind of fork contact, such as the fork contact 22 in Figures 5 and 6) of another electrical component can be inserted such that this Fork contact 22 on the one hand in the hold-down device 14 is determinable and on the other hand producing one electrically conductive connection astride the contact approach 2d overlaps the first connection contact end 2a or astride this contact approach 2d can be plugged on. About this plugging a fork contact 22 or the like, it is useful if the tongue-shaped contact approach 2d for example in the manner illustrated in Figure 3 one is roughly cut-shaped upwards or outwards has tapering free end edge 2d '.

As has been mentioned before, with the help one from above on the contact approach 2d each first terminal contact 2a or each associated Contact element 2 attached fork contact 22 a electrically conductive connection to another electrical component getting produced. In this further Electrical component can be in accordance with that in FIGS and FIG. 6 illustrate another embodiment the invention, which is above all an advantageous embodiment or further development of the first embodiment represents, for example, an appropriately trained Act on circuit board 23. This electrical circuit board Accordingly, 23 is at the end of the first connection contacts 2a containing upper end side la of the base body 1 arranged. This circuit board 23 shows several in number and distribution of the contact elements 2 in the base body 1 corresponding to the associated Contact lugs 2d plug-on fork contacts 22 on. It is also considered appropriate if the base body 1 with all included therein and fixed elements, especially the contact elements 2 and the hold-down 14 and optionally the cable wire ends 3, in a lower housing part 24 is included. Furthermore, it is useful if the first connection contacts protruding upwards 2a of all contact elements 2 and the plugged on them Cable wire hold-down device 14 from base body 1 in an upper free housing space 24a of the lower housing part 24 protrude; it is also at least on one side or side wall 24b of this lower housing part 24 a socket-like cable bushing 25 for a electrical connection cable provided. Still is in this case the printed circuit board 23 in the base body 1 facing underside 26a of an approximately lid-shaped Upper housing part 26 set with its lower Edge 26b fits on the upward-facing edge 24c of the lower housing part 24 is fixed. To a high Tightness between lower housing part 24 and upper housing part 26 to achieve, for example, to fulfill a standard-compliant seal according to IP67 according to EN60529, is between the lower edge 26b of the upper housing part 26 and the upper edge 24c of the lower housing part 24 a corresponding profile seal 27 is arranged, i.e. is expedient - as shown in Figures 5 and 6 - This profile seal 27 in the lower edge 26a of the upper housing part 26 (in a corresponding groove) used.

Lower housing part 24 and upper housing part 26 are useful made of a suitable insulating plastic, the lid-shaped housing upper part 26 can be made of a transparent plastic, to e.g. a light-emitting diode attached to the circuit board 23 let it shine through. The circuit board 23 Even circuits can e.g. for a light emitting diode, Have protective circuits and the like. It can in this way a modular wiring system overall be created.

As for the constructive design of the in FIG 6 and 6 regarding the exemplary embodiment illustrated, it is also considered useful if, for example central and essentially vertical in the lower part of the housing 24 and in the upper housing part 26 - as in the drawing (e.g. Figures 5 and 6) - about tubular and slotted, pluggable and fasteners that can be snapped together 28, 29 are attached. On the outside circumference of the fixing member arranged in the upper housing part 26 29, i.e. in a kind of ring groove worked in there 29a is additionally the printed circuit board 23 via a corresponding one Location bore 23a interchangeably engaged, and this circuit board 23 is also still on its outer edge (outer peripheral edge) in marginal areas 26c of the upper housing part 26 releasably fixed. If necessary can thus a built-in circuit board 23 replaced with a different printed circuit board become.

In Figure 6 it can also be seen that in the tubular Fixing elements 28, 29 of the two housing parts 24, 26 additionally a locking screw 30 is received, those from the upper housing part 26 through both housing parts 26, 24 is inserted and for fastening these through the fixing elements 28, 29 as a kind of device socket unit prefixed housing parts 24, 26 another electrical component is determined.

The described device socket according to the invention offers almost ideal structural with a relatively simple construction Requirements for a standard-compliant arrangement and Distribution of the contact elements, a standard design at least in terms of their main dimensions as well a dust and moisture-proof, also compliant with standards Execution. With regard to the overall norm-compliant The German version is also an example Industry standard according to DIN 43650 or the corresponding one ISO standard pointed out by about the arrangement picture the contacts or contact elements and the corresponding Designs is determined. According to the one already mentioned EN60529 specifies the electrical protection class i.e. to what extent a device socket is safe to touch or protected against dust and moisture / water have to be. These standards can with the invention executed device socket can be easily met.

Claims (18)

Device socket for establishing an electrically conductive connection between electrical components, containing a) a base body (1) which forms a type of contact carrier and is made of an electrically insulating material, b) at least two electrically conductive contact elements (2) fixed in the base body (1), which are formed at their opposite ends as connection contact ends (2a, 2b), each of which has a first connection contact end (2a) with a cable wire end (3) can be connected and the second connection contact end (2b) can be plugged together with a mating contact element (4) of an electrical component (5), characterized in that
c) each contact element (2) is designed approximately in the form of a flat sheet metal strip and in the form of a combination contact element in such a way that its first connection contact end (2a) on the one hand has a cutting contact (7) provided with a cable wire insertion slot (6) and on the other hand one for Clamping a cable wire end (3) assigned clamping contact device (8), wherein cutting contact (7) and clamping contact device (8) can be used optionally. Device socket according to claim 1, characterized in that each contact element (2) in a suitable, continuous receiving slot (9) in the Basic body (1) inserted and by one externally projecting, bent fixing tabs (9a) axially is fixed immovably in the base body (1). Device socket according to claim 1, characterized in that each contact element (2) on its second connection contact end (2b) one for free Open, roughly fork-shaped clamp opening (2b ') for receiving a plug-shaped mating contact element (4) another electrical component (5). Device socket according to claim 1, characterized in that each in the base body (1) approximately parallel to a contact element (2) Cable wire receiving groove open to the outside and to the contact element (10) is provided and the terminal contact device (8) one accommodated in the base body (1), accessible from outside and in the area the cable wire receiving groove (10) against a side surface (2c) of the contact element (2) screwable Has screw terminal (11, 12, 13). Device socket according to claim 1 and / or 4, characterized characterized in that the one provided with cutting edges (6a) Cable wire insertion slot (6) in the longitudinal direction of the contact element (2) runs for free End of the first connection contact end (2a) open opens out and one of the cable wire end (3) so adapted Slot width (SW) has that at Insert the end of the cable wire lengthways, making a cut a cable wire insulation jacket (3a) one electrically conductive connection with the contact element manufactured and this cable wire end (3) can be clamped. Device socket according to claim 5, characterized in that the first connection contact end (2a) each contact element (2) is designed as an insulating part Assigned cable wire hold-down device (14) is that of a receiving slot (15) for from the Base body (1) projecting free end portion of the first contact contacts (2a) and a cross there is also a continuous, through-hole through-cable opening (16) to record the associated, with the cable sheath provided with the insulating jacket (3a) (3). Device socket according to claim 6, characterized in that everyone's essentially similar trained cable wire hold-down (14) a die Cable wire push-through opening (16) and the receiving slot (15) containing push-on cap (17) for pushing on on the above free end portion of the associated first terminal contact (2a) and one in a hook groove (19) of the base body (1) engaging and fixable snap hooks (18). Device socket according to claim 7, characterized in that the push-on cap (17) of the hold-down device (14) with a breakable assembly flag (14a) is made. Device socket according to claim 7, characterized in that the base body (1) in the area below the push-on cap (17) into the cable wire push-through opening (16) above, the corresponding Cable wire end (3) fixing projection (20) having. Device socket according to claim 6 or 7, characterized in that the first connection contact end (2a) each contact element (2) next to the end of the cable wire (3) in the receiving slot (15) of the hold-down device (14) protruding, freely extended to the outside, has tongue-shaped contact approach (2d) and this receiving slot (15) in the plan area of the contact approach (2d) by a cross section approximately cross-shaped through opening (21) is extended outwards into the one hand the tongue-shaped contact projection (2d) protrudes and on the other hand, a fork contact (22) from the outside other electrical component so plugged is that this fork contact (22) on the one hand the hold-down device (14) can be fixed and the other producing an electrically conductive connection about astride the contact approach (2d) of the first Terminal contact (2a) overlaps. Device socket according to claim 10, characterized in that the tongue-shaped contact approach (2d) an approximately tapered shape towards the outside has free end edge (2d '). Device socket according to claim 10, characterized in that at which the first connection contact ends (2a) containing end side (1a) of the base body (1) a circuit board (23) is arranged, the plurality in number and distribution of the contact elements (2) in Basic body (1) corresponding to the associated Contact lugs (2d) attachable fork contacts (22) having. Device socket according to claim 12, characterized in that the base body (1) with all in it recorded and defined elements in one Lower housing part (24) is added, the first Terminal contact ends (2a) of all contact elements (2) as well as cable hold-down devices attached to it (14) from the base body (1) into an upper free Project housing space (24a) and at least at one side (24b) of this lower housing part (24) a socket-like cable bushing (25) for one electrical connection cable is provided, and that the printed circuit board (23) in the base body (1) facing Underside (26a) of an approximately lid-shaped Upper housing part (26) is fixed, with its below the edge (26b) to match the one pointing upwards Edge (24c) of the lower housing part (24) fixed is. Device socket according to claim 13, characterized in that between the lower edge (26a) of the Housing upper part (26) and the upper edge (24c) of the Lower housing part (24) a profile seal (27) arranged is. Device socket according to claim 13, characterized in that about central and essentially vertical running in the lower housing part (24) and in the upper housing part (26) approximately tubular and slotted trained, nested and snap-in Fixing elements (28, 29) which can be locked together are arranged are. Device socket according to claim 15, characterized in that on the outer peripheral side of the in the upper housing part (26) arranged fixing member (29) additionally the printed circuit board (23) via a corresponding one Interchangeable mounting hole (23a) is, this circuit board also on their Outer edge in edge areas (26c) of the upper housing part (26) is releasably set. Device socket according to claim 15, characterized in that in the tubular fixing members (28, 29) both housing parts (24, 26) additionally one Locking screw (30) for fastening these assembled Device socket on another electrical component is added. Device socket according to at least one of the claims 1 to 17, characterized by a standard-compliant arrangement and distribution of the contact elements (2), through standard-compliant design and main dimensions as well thanks to a dust and moisture-proof standard Execution.

Images