DE2362301A1 - ELECTRICAL CONTACTS FOR CONNECTING PINS - Google Patents

Description

The invention; concerns Fgdgrkontakte to elektrisehe.n. Connection with a connector pin,

The pen correspondence, which are described in the following, are s, o carried out, that they are in view of the situation ^ Vrerd ^ n can, especially if you have a large number of contacts arranged and at their rear ends in sequence or -. s ^ nkr ^ ght parallel verb, .und.n are .. with a two.ekmis-, sig§n connection becomes an eriEite liorita ^ t series with 4em pgsitiY§n Pole of an electrical voltage supply (| uelle and te borrow with the negative pole of the same ^ vepbund§n. Then a © 4§r ie} ar§re äuler§ iehalt = · circles with four voltage sources by plugging in the

connecting pins are connected to the contacts. Another useful application of the, contact field is. Resistances, as well as inductive and capacitive components between the extended To connect contact ends, and to use these .circuit components in external circuits. Many other Types of application for such an insert are known.

Known spring contacts were generally connected via their sockets, whereby the spring contacts had less elasticity and the connection work on the back impaired. Sometimes additional steel springs were added, but these made the contacts more bulky.

A spring contact according to the invention is characterized by two opposite jaws, each designed with a sloping end face to create a wedge-shaped opening between them, a bridge that connects the two jaws at their hands and is elastically pretensioned around the two To press the jaws against each other and thereby hold the terminal pin in place, a connecting end piece which connects the two jaws to an external circuit and which, starting from the bridge, runs away from the jaw and through cut-out parts at the lower ends of the jaws in order to support them against an insulating surface, if the spring contact is installed in a hole in it.

The spring contact can be made from a single piece

able alloy. which has a lateral connection between the jaws. This will make the entire necessary Achieves elasticity and additionally allows a long thin connecting end piece to be used, which is integral with connected to the rest of the contact.

The jaws are formed with the wedge-shaped opening so that they allow easy entry of a terminal pin enable. Several parts of the contact, such as the end piece and the base of the jaws, can be provided with a protruding Pvillung for reinforcement.

An embodiment according to the invention is described below, reference being made to the drawings will. Show it:

Fig. 1 is a perspective view of a metal plate partially cut through .Parts, corrugations and shear lines pre-formed is;

Figure 2 is another perspective view showing the spring contact in its final form shows before it has been cut from the base strip;

Fig. 3 is a plan view of the spring contact on a larger scale and in a hole of an insulating

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shown installed;

Fig. 4 is an end view of the spring contact built into the insulator plate and is held by a locking strip. The plate and the strip are in Cross section shown;

Figure 5 is a side view similar to Figure 4 but showing the side of the contact piece;

Figure 6 is a cross-sectional view of the two spring members taken along line 6-6 of Figure 5; and

Fig. 7 is another cross-sectional view of the

Spring contact along line 7-7 of Fig.

The spring contact is made from a flat piece of conductive material Metal formed, and Fig. 1 shows the contact after several operations in a punching die. All contacts are held together by an end strip 10 which is perforated through a number of guide holes 11 to guide the blank through the die and ensure proper alignment with the molded parts. As in Fig. As shown, punch holes 12 are cut into the strip so that ridges 13 remain to hold the spring blanks in place hold through the molds for further operations. There are two parts 14 that lead to the shape of the jaws be bent, flat and by a shear line 15, a

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Opening 16 and a connecting end piece 17 are separated. the Corrugations 18 are formed on the lower ends of the jaws to stiffen them and a single long one. Curl 20 is formed in the contact end piece 17 to it to make it less flexible. In order to ensure a secure electrical contact, a thin one is used, as stated Strips 21 made of gold or silver either by metallizing or any other convenient plating method applied.

The blank is then bent to close the jaws 22 form, and then one jaw is turned around so that it facing the other jaw, with the two jaws 22 in the position as shown in Fig. 2 by a bridge part 2.3 are held elastically in order to grasp a connecting pin 19 (Fig. 4), Fig. 3 shows a plan view of spring contact with the jaws 22 opposite each other, making elastic contact only at their edges do. A small opening remains in the middle of the jaws 24 to facilitate entry of a connector pin.

A number of spring contacts are loaded as above * Written, trained and along the base stripe. 10 spaced apart, being in their position by the Web 13 are held. This strip with contacts is then inserted into a number of holes 25 formed in a flat dielectric 26. The lo-.

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rather 25 are equally spaced, arranged around the spacing of the spring contacts on the strip 10 to correspond so that all contacts in any row can be used at the same time. After they have been inserted into their holes there may be a retaining strip 27 on the lower side the isolator plate 26 and through holes 16 in each spring can be used. If the spring contacts are to be connected independently of one another, the strip 27 an insulator such as Bakelite or vulcanized fiber. If the spring contacts are to be connected together, the Retaining strip 27 can be a ladder. The strip can be bent into a chosen shape, as in Fig. 4, around its Increase elasticity.

As shown in Figures 3, 4 and 6, the corrugations 18 pressed elastically against the inner surface of the holes 25, so that they cannot move out of alignment when in use. The length of the contact end pieces 17 can be made as long as desired, depending on the width of the initial die cut strip.

A large number of spring contacts, up to several Hundreds, can be placed on a single isolator sock to accommodate many types of applications in a slot Communication networks, computers and laboratory test facilities form.

One characteristic of the contact described above is

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a uniform design, making a punch press the entire spring contact in a progressively acting form, can manufacture without manual operations.

Another property of the contact allows the contact to be completely fabricated before it has been removed from the socket strip. In this way it can be a long range of contacts, 20 or more, can be inserted into their holes in the insulator plate in a single operation. if the contacts are in their end position, the base strip is broken away.

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Claims (7)

Claims 1, y spring contact for electrical connection with a Terminal pin marked by two Opposite jaws (22), which are each formed with a sloping end surface in order to have a To create a wedge-shaped opening, a bridge (23) that connects the two jaws at their edges and resiliently forward. is stretched to press the two jaws against each other and thereby holding the terminal pin (19) in place, a connecting end piece (17) which connects the two jaws with one external circuit connects and that runs from the bridge away from the jaws, and through cut out Parts on the lower ends of the jaws to support them against an insulator surface (26) when in one Hole (25) the spring contact is installed. 2. Spring contact according to claim T, characterized in that a hole (16) above the bridge (23) is designed to receive a retaining strip (27), to thereby hold the spring contact in a secure position after it has been inserted into a hole in an insulating plate. 3. Spring contact according to one of claims 1 or 2, characterized in that the entire arrangement is formed from a single piece of conductive material. 409832/0687 4. Spring contact according to one of claims 1 to 3, characterized in that a gold strip (21) Before bending on the spring material is applied to a gold-plated, conductive surface at the points of the jaws where a terminal pin engages. 5 · spring contact according to one of claims 1 to 4, characterized marked that the jaws, the bridge and the connecting end piece are chosen to their Increase stiffness and limit flexibility. 6. Spring contact according to one of claims 1 to 5, characterized characterized in that the jaws have a normal opening therebetween for receiving are formed by matching connecting pins, the opening being reached by bending the jaw edges against each other so that there is contact between the two jaws when there is no pin between the jaws. 7. Spring contact arrangement according to claim 2, characterized in that a number of spring contacts are installed aligned on an insulating plate and that a conductive retaining strip in all holes the spring contacts engage to hold them in place and connect them to one another. 4 09832/0687 / ο Blank page