CH679191A5 - - Google Patents

Description

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CH 679191 A5

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Description

The present invention relates to an electrical connection member for electronic components, comprising a socket-shaped part intended to receive an electronic component conductor, and a rod-shaped part, intended to be plugged into a circuit support.

The invention also relates to a method of manufacturing the above-mentioned electrical connection member.

Such electrical connection members are known, in which the socket part is constituted by an elastic sleeve added in a tabular piece engaging in a support for electronic components. These items are expensive to manufacture and the fact that they are made of inserts makes them unreliable.

The object of the present invention is to remedy these drawbacks.

This object is achieved by the means defined in claims 1 and 7.

The drawing shows, by way of example, two embodiments of the subject of the invention.

Fig. 1 is a perspective view, partly in section, of a printed circuit adapter equipped with electrical connection members according to a first embodiment thereof.

Fig. 2 is an axial section of such a connection member, on a larger scale.

Fig. 3 is a section along the line III-III of FIG, 2, on an even larger scale.

Fig. 4 is an elevational view of the connection member during manufacture.

Fig. 5 is a profit view of this same connection member during manufacture.

Fig. 6 is an end view of a detail.

Fig. 7 is an axial section of a second embodiment of an electrical connection member.

Fig. 8 is a cross section along the line Vili-VIII of FIG. 7, on a larger scale.

Fig. 9 is an elevational view of this connection member during manufacture.

Fig. 10 is a side view.

Fig. 11 is an axial section of a third embodiment of a connection member, and

Fig. 12 is an elevational view of this connection member during manufacture.

The adapters of electronic components generally include a plate of insulating material, such as plate 1 in FIG. 1, in which are engaged connection members having a female part, in the form of a socket, in which the pins or the conductors of electronic components engage, and a male part, in the form of a pin, engaging in holes of the printed circuit board. In the case of the present invention, these two parts - male and female - are in one piece.

In the embodiment of figs, 1 to 6, the connection member, generally designated by 2, is constituted by a sheet of metal rolled on itself. This connection member has a part

2a in the form of a socket extending by a part 2b in the form of a pin.

The part 2a forming a socket has three cut tabs 2c, arranged 120 "from one another, folded outwards, ensuring assembly between the connection member 2 and the plate 1 of the adapter.

In part 2a are also provided three elastic tabs 2d, arranged 120 "apart, cut and folded inwards. The conductor of the electronic component, or tail, is introduced into the socket 2a, engaging between the three 2d tabs, which ensures good electrical contact, all the better since the 2d tabs are golden.

It should be noted that the internal face of the tongues 2d has been chamfered, by stamping, so that the tongues can be folded inwards until they come into contiguous contact with each other, as shown in particular in FIG. . 3.

The embodiment of the connection member 2 is obtained from a strip material from which blanks are cut as shown in FIGS. 4 and 5, having an enlarged part intended to constitute, once the connection member is finished, part 2a of the latter, in the form of a socket, and a narrower part intended to constitute part 2b of the member connection, pin-shaped. The tongues 2c and 2d, three in number, are cut-stamped in part 2a.

A selective gilding, obtained everywhere known means, such as, for example, electroplating, chemical gilding, or other, after saving the entire surface of the blank, with the exception of the tabs 2d, is then carried out. Then rolling is carried out in order to give the connection member its final shape. We could also start from a strip, an area of which the tabs will be cut out, would have been previously gilded.

It should be noted that, since the tails of the electronic components which engage in (the sockets 2a are generally flattened and not circular, the connection members must be mounted on the support plate 1 in the same angular orientation, in order to that these tails all engage in the same way in the sockets, namely their plane being parallel to one of the three tongues and not perpendicular to one of them, in which case they would engage between the other two tabs, at their junction line, which would not be happy. For this reason, and in order to obtain that the connection members are mounted on the plate 1 of the adapter all in the same orientation, these members are produced. connection without separating them from the strip from which they originate and they are engaged in the plate 1 even though they are still connected to this strip.

The embodiment of figs. 7 to 10 differs from the first essentially by the fact that the number of cut tabs, folded internally, is different, being four and not three.

In this embodiment, the connection member, generally designated by 3, pre5

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CH 679 191 A5

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feels, as in the first embodiment, a part 3a in the form of a socket extended by a part 3b in the form of a pin. It is obtained by cutting-folding-rolling from a strip material.

The tongues folded outwardly, designated by 3c, are three in number, distributed an-guide at 120 ° from each other. These tongues are intended to maintain the connection member in the adapter plate, as in the first embodiment.

As for the interior tabs, designated by 3d, they are four in number, distributed angularly at 90 ° from one another, and are golden.

However, so that there is enough material between them, these four 3d tabs are offset longitudinally, in pairs, along the connection member, which doubles the distance which separates them laterally from each other.

Since once folded inwards these tabs face each other, in pairs, their ends are cut in whistles, as shown in 4 in fig. 7.

The method of manufacturing this second embodiment of the connection member is similar to that described above concerning the first embodiment.

The third embodiment, shown in figs. 11 and 12, differs from the first two mainly by the fact that the connection member, generally designated by 4, is constituted by a socket whose front edge is not rusted but simply flared at 4a. This socket is engaged in a plate of insulating material, such as plate 5 in FIG. 11, in which it is held by three bosses 4b produced by stamping.

The external and internal tabs, designated by 4c and 4d respectively, three in number, are obtained by cutting, in the wall of the socket, H-shaped slots, indicated at 6 in FIG. 12, whose legs are parallel to the longitudinal axis of the sleeve and whose transverse parts are perpendicular to this axis. These H-shaped slots 6 thus spare the tabs 4c and 4d which only have to be folded outwards and inwards, respectively. The pairs of tabs 4c and 4d being each obtained from the same cutout 6, there are therefore only three cutouts located next to each other, which has the advantage that they are less close to each other. each other than in the previous embodiments, and that the material between them is sufficiently wide so that the wall of the sleeve is not excessively weakened, or even that one can provide four tongues instead of three.

The tabs 4b are gold-colored in order to ensure contact with the tail of the electronic component introduced into the socket.

Claims (9)

Claims 1. Electrical connection member for electronic components, comprising a part in the form of a socket intended to receive a conductor of electronic component, and a part in the form of rod intended to be plugged into a circuit support, characterized in that these two parts are in one piece, the sleeve part having at least one cut tongue, folded inwards, intended to come into elastic contact with said conductor in order to ensure electrical contact between the connection member and the latter . 2. Connection member according to claim 1, characterized in that said tongue folded inwards is golden. 3. Connection member according to claim 1, characterized in that its sleeve-forming part has several tongues folded inwards, angularly distributed evenly. 4. Connection member according to claim 3, characterized in that the tongues folded inwards are four in number and are offset longitudinally, in pairs, relative to each other, so that the distance which is increased laterally separates them from each other. 5. Connection member according to claim 1, characterized in that its socket-forming part has at least one cut tongue, folded outwards, intended to ensure the maintenance of the connection member on an insulating support element in which he is engaged. 6. Connection member according to claim 5, characterized in that it comprises several tongues folded outwards, angularly distributed evenly. 7. A method of producing the connection member according to claim 1, characterized in that it is obtained from a strip material by cutting-folding-rouiage operations. 8. Method according to claim 7, characterized in that one proceeds to the browning of the cut tabs before the rolling operation. 9. Method according to claim 7, applied to the production of an adapter for electronic components, characterized in that the connecting members are left in a strip, once the cutting-folding-rolling operations have been carried out, engage said members of connection in an insulating support element of the adapter while they are still in a strip, this so that they are all angularly oriented in the same way on said support, and finally detaches from the strip said connecting members in place on said support. 5 10 15 20 25 30 35 40 45 50 55 60 65