DE7406144U - Plug contact device for installation devices - Google Patents

Description

c- ACTIVITY CHARACTER I

Mp. No. 525/74 Mannheim, April 8, 1974

PAT-Mk / Vo

Plug contact device for installation devices

The innovation relates to a plug contact device for input and output connections in installation devices, in particular in Miniature circuit breakers, with device support plate and intermediate part.

So far, line protection, residual current circuit breakers or circuit breakers have been used screwed or snapped onto device mounting rails. Branches lead from the busbars to the individual ones Devices, whereby the connection via screw terminal connections is relatively complex and can only be carried out when the switch is already attached.

In order to manufacture connectors with screw provided with standard installation switches, was prepared in the utility model 7,309,133 at each Installationsgerr ⁴ · an additional part laterally. On the one hand, it is connected to the screw terminals and, on the other hand, it establishes the connection to the busbars via plug parts.

However, such adapters inevitably bring additional transition resistances to all branches and also provide one space-saving arrangement contrary.

An arrangement with a Steckvor direction has also become known for the power input side made of angled pieces of wire with flattened sticks. However, the mechanical reliability of this solution is low. The connector can therefore

also only be attached when the installation switch is already is mounted.

The innovation is therefore based on the task for the power supply and power removal under a plug contact device with functional electrical and mechanical reliability Use of standard installation switches equipped with screw terminals.

The current input and current output side contact plugs sol-O len establish the connection from the screw terminals on the installation switches to the busbars.

When inserting the installation switch in the device support plate is intended to ensure reliable contact between the contact plugs already attached to the switch and those attached to the device support plate Busbars can be achieved by an exact mounting of the contact plugs on the installation switch made beforehand will.

The innovation is seen in the fact that a U-shaped, hat-shaped intermediate carrier encompassing the base of the installation device / -λ current input and current output side with elastic plug socket enart-like guide arms are provided, which are designed as guides for the plug contact tongues and extend over the edge The double or multiple walls that are used for assembly are raised laterally in the direction of the installation devices, parallel to one another the device support plate extend.

Another advantageous solution results from the fact that at According to the innovation, the double or multiple walls of the device support plate are designed to be elastic with respect to their spacing from one another and between them form a chamber-like opening with a projection directed into the interior of the chamber and sloping towards the edge

, through which on the one hand the busbar to be arranged under the projection receives a firm seat and its inclined On the other hand, the surface is the guide element for the spring clip-like contact tongues that can be inserted from the open edge for contacting represents.

Another advantageous solution results from the fact that in the innovation for three-phase operation the individual, next to each other arranged installation devices on the power input side in each case one of the parallel to each other in the chamber-like openings Busbars is assigned, the socket-like guide arms with the associated contact angle upper parts have different lengths.

Further features and advantages of the innovation result from the Explanation in connection with the drawing. Show it

Fig. 1 shows the schematic structure of the plug contact device for alternating current

2 shows the schematic structure of the plug contact device for three-phase current.

The housing 14 of the automatic switch shown here engages with its lower base 15 in a U-shaped encompassing one Plastic intermediate carrier 17 via the locking lugs 18 a.

According to the modular principle, the unit created in this way is transferred from the top into the one which is also made of plastic Device support plate 1 snapped into place.

Angular contact plugs 20 provide the electrical contact between the respective switch 14 on the one hand and the power line 10 on the other hand.

-A-

According to FIG. 1, the power is supplied for alternating current operation Via the supply terminal 10, the clamping bracket 11 of which on not shown, rail profile-like formations in the chamber interior that of the elastic double walls raised at the sides 2.3 of the device support plate 1 formed kamnier-like opening 6 is snapped.

On the current input side, the clamping bracket 11 has electrical contact with the contact spring, not shown in detail, of the lower one Part of the chamber-like opening 6 running busbar 9, which is supported by the beveled projection 7 above is clamped.

Before installing the installation device in the device support plate v / ix d first the switch housing 14 with its base 15 in the intermediate carrier 17 inserted, the locking lugs 18 the proper Manufacture seat. The intermediate carrier 17 comprises the base 15 in a U-shape and has elastic, socket-like guide arms 19 on both sides.

At the lateral, step-shaped shoulder 16 of the housing 14 is the oestehende from reinforced material upper part 21 of the angular Contact plug 20 fastened with a screw 26 after the spring clip-like contact tongue part 22 through the socket-like Guide arm 19 was pushed. The exact mounting of the contact tongue 22 produced in this way is a prerequisite for that when installing the unit consisting of switch, intermediate carrier and contact bracket in the device support plate, the spring clip-like Contact tongue 22 hits the inclined surface 8 of the projection 7 and slides down a precisely defined path on this surface 8, until contact with the contact spring, not shown in detail, of the busbar 9 is established. The press fit between Housing base 15, intermediate support 17 and the raised wall 3 of the device support plate, also causes the tight fit of the electrical connector.

- 5 .., "..- 7406 HA-4.7.74

No conductor rail is inserted into the opening on the power outlet side between the raised double walls k, t>. Accordingly, a separate supply line is provided for each of the contact plugs, which are not designated in any more detail. Angled contact plugs are used that correspond in structure and dimensions to those already described. The clamping brackets 13 »13a, 13b of the terminals 12, 12a, 12b are in direct contact with the respective, unspecified contact tongues of the contact plugs on the output side.

According to FIG. 2, the device support plate 1 has the power input side 4-part walls to accommodate the busbars 9A., 9B, 9C strand. Every switch connection on the input side and thus every one the switch housing 14A, 14B, 14C is assigned a busbar.

According to the different phases and the spatial distances of the busbars to each other, the clamping brackets 11A, 11B, 11C of the terminals 1OA, 1OB, 1OC and the upper parts 21A, 21B, 21C the angled contact plugs 20A, 20B, 20C, including the socket-like guide arms of FIG. 19A> 19B, 19C of the intermediate carrier on different Läigpn.

Claims (3)

, Mp.-No. 525/74 Mannheim, April 1974 j 'Claims for protection 1. Plug contact device for input and output connections in front of « Installation devices, especially miniature circuit breakers, ^: with device support plate and intermediate part, characterized in that a U-shaped hat-shaped intermediate support (17) encompassing the base (15) of the installation device (14) is provided on the power input and output side with elastic, socket-like guide arms (19) which act as guides for the plug-in contact tongues (22) are formed and extend over the edge of the double or multiple walls (2, 3; 4, 5) of the device support plate (1) that are used for assembly and are laterally raised in the direction of the installation devices. 2. Plug contact device according to claim 1, characterized in that the double or multiple walls (2,3; 4,5) of the device support plate (1) are designed to be elastic with respect to their spacing from one another and between them form a chamber-like opening (6) with a Projection (7) directed into the interior of the chamber and sloping towards the edge ₍ through which, on the one hand, the busbar (9) to be arranged under the projection receives a firm seat and its inclined surface (8), on the other hand, the guide element for the spring clip-like contact tongues which can be inserted from the open edge for contacting (22) represents. 3. Plug contact device according to claim 2, characterized in that that for three-phase operation the one Zainen, next to each other - 2 - - 2 - arranged installation devices (V) A, 14B, IAC) on the stroine input side each one of the rabbit-like ^ n Openings (6A, OB, GC) are assigned, v / obei the socket-like Guide arms (19A, 19B, 19C) with the associated contact angle upper parts (21A, 21B, 21C) different Have lengths. A, plug contact device according to claim 2 or 3, characterized in that that the interior of the chamber between the laterally raised double or multi-walled walls (2, jü, 4,5) in the upper part with a rail-like profile to snap into place the clamp bracket (11, 13) is provided. /406144-4.7.74