DE1515370A1 - Electrical connection sockets - Google Patents

Description

"R." Hll. "B.HA" eir Munich, December 13, 1961

linNCHBN-SOLLN

ηλλ «·. ai AjäP 1142/656

Brrfrspl.

AMP Incorporated Eisenhower Bonlevard, Harris birg, Penn./USA

Electrical connection sockets «

The present invention relates to electrical Connection sockets for the sliding reception of an electrical contact plate and also relates to assemblies from such sockets and plates.

If a number of such connection sockets in an Ieolierblook is arranged around with electrical contact plates that of

Another insulation block worn is the force required to be engaged in the. To separate blocks when bushings and plates are in engagement with one another, equal to the sum of the forces which are necessary to separate each individual bushing from the respective plate, it is therefore desirable that the contact pressure exerted between the bushing and the plate the effect comes, in the production can be precisely regulated,

108185/0259

especially where a considerable number, 3.B. 20 sockets are to be used in a lock. Although resilient devices can be arranged to exert a predetermined pressure against the wafer to bring it into electrical contact with the contact surfaces of the socket, the force necessary to insert or withdraw the wafer will not be proportionate to the predetermined pressure correspond when "klroh the plate when it is inserted into the connection socket pushes the walls apart, ie the plate acts as a wedge. Furthermore, a possibly existing corrosion-resistant coating, for example made of gold, on the plate or the socket is damaged by such a wedge effect.

It is furthermore desirable that the connection socket can be manufactured within wide tolerances.

According to one aspect of the invention, there is an electrical connector for slidably receiving an electrical connector Contact plate, which has rounded the edges of a surface and so two arc-shaped, longitudinally extending forms first contact surfaces, from a socket which is formed by a pair of contact parts which extend from a Base extend parallel to each other and so form a pair of adjacent, second contact surfaces, which as opposing arcs are formed and have tangential planes that converge outwards from the socket

109885/0268

and intersect between the second contact surfaces; the Connection socket also has resilient devices for exerting a pressure against the plate to the first To print contact areas in contact with the second contact areas.

According to another aspect of the invention has one electrical connection socket for slidably receiving an electrical contact plate, which the edges of one side has rounded and thus forms two longitudinally extending first contact surfaces, a socket consisting of one Bassis and two opposing contact parts that extend from the base at a parallel distance from one another and the plate between them, whereby the contact parts are a pair of oppositely tapered, arc-shaped cores Contact surfaces provide and resilient Torriehtua «s on the Baals ao arranged that they act on the tile and create a contact pressure between the first and second contact surfaces. The wide contact areas are arranged so that an essential component of the contact pressure a is directed generally at right angles to the base.

According to another aspect of the invention, there is an electrical connector for slidably receiving a elongated contact plate, the edges of which are on one side aur the formation of two arched, longitudinally extending "

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109 * 15/0259

the first contact surfaces are rounded, from a base, Devices around the base with an electrical conductor electrically to silt up, two oppositely curved, elongated ones Contact parts extending from the base at a parallel distance from one another and there;.; Platelets between can accommodate, a pair of oppositely arcuate second contact surfaces on the parts, a resilient part that extends from the base towards the contact parts for the purpose of exerting pressure on the wafer around the first To press contact surfaces in abutment with the second contact surfaces, the second contact surfaces being arranged so that the pressure exerted by the contact surfaces against each other, is essentially equal to the pressure exerted by the: resilient Part eegeii the platelet is exercised.

The invention also provides an electrical connection between an electrical contact plate and its edges one side are rounded to form two arcuate, longitudinally extending first contact surfaces and one electrical connection socket, consisting of two opposite parallel ^ ontrjktteile, which the plate between cal take up, wherein the plate is pressed by resilient devices, and thereby the first contact surfaces a contact pressure exercise against arcuate second contact surfaces on the contact parts, the tangential planes of the contact surfaces on the plate an intersection angle with one to the surface of the plate parallel

100IIS / 026I

- Have 5 levels of not more than 30 °.

■ The connection sockets and plates are preferably arranged in such a way that that they are fastened in insulating blocks in order to be brought into contact with one another. For this purpose the sockets can be provided with devices to fix them detachably in channels in an insulating block, whereby the platelets are conveniently cast in an insulating block that can be brought into a single grip ..

For a better understanding of the invention and to show how it can be practiced, reference is now made to the accompanying drawings: Figure 1 is a perspective view of one embodiment of an electrical connector block assembly showing the blocks of the assembly disengaged from one another ; Figure 2 is an enlarged side elevation in section of the assembly shown in Figure 1 with the blocks in operative engagement;

Figure 3 is a partial section along the lines III-III of Figure 2j

Figure 4 is a partial section, further enlarged, along the lines IV-IV of Figure 2;

FIG. 5 is an enlarged perspective view of an electrical connection socket of the assembly. FIG. 6 is a perspective view in section of another embodiment of an electrical connection block.

Assembly; Figure 7 is a perspective view in section of a Embodiment of an electrical die connection block; Figure 8 is a perspective view in section of a

further embodiment of an electrical plate connector dungablockes.

In the following, reference is first made to FIGS. 1 to * 5. An electrical connection block assembly consists of an electrical die connection block 2 which is attached to a printed circuit board 4 for the purpose of interacting with an electrical connection socket block 6 in order to produce printed circuit boards Line strips 8 on the plate 4 · with the cores of the insulated LeItCr ¹ IO of the block 6 to connect electrically.

Per block 2 has a body made of electrically insulating material and carries a number of electrical contact plates 12, which are preferably punched out of a flat metal, for example brass, and are preferably plated with gold. The contact plates 12, which are cast in the block 2, each have a base part 14 with a central opening 16 through which the block material extends. Two solder noses 18 (Fig. 2) on the part 14 protrude through the lower surface 2 ^{1 of} the block 2 (as can be seen from Fig. 2)

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and are received by a pair of openings 20 in plate 4 soldered to one of the printed wiring strips 8 at 2c. A rural electrical contact plate 24 protrudes from the part 14 through the front face of the block 2.

The plate 24 has the edges of one of its two wide edges Surfaces for forming a pair of longitudinally extending, arcuate electrical contact surfaces 26 rounded, as can best be seen in cross section from FIG. To achieve close tolerances, the plate 24 is in front of: ', ugswei se produced by embossing the edges of a flat sheet metal stamping piece with a right-angled cross-section. The Krümmutigsradii of the surfaces 26 are approximately half the thickness of the punched piece. For the purpose of easy assemblies are those Surfaces 26 of all platelets 24 aligned uniformly.

The block 6, which is also made of electrically insulating material consists, preferably of molded plastic, is generally rectangular and has a series of continuous "cannula 28, each of which the front surface 30 with outer rear face 32 of block 6 connects; these channels serve only for the future. e electrical connection sockets 34 with the platelets 24 are engaged. Any socket is preferably made from a stamped piece of resilient sheet metal, e.g. phosphor bronze, which is highly electrical

109ltt / Q2S!, .. ',.

conductive and corrosion-resistant coating, e.g. made of gold, punched out. The socket 34 consists of a elongated socket part 34 ',, dae isit the plate 24 in Is to be brought into engagement, and from one end of which a first, a clamp-forming part 50 extends, which at the core 54 of one of the lines 10 is clamped and a second part 52, which forms a clamp, which is attached to the insulation 56 of the conductor 10 is clamped; the part 34 * consists of a socket, which is connected by two elongated, opposite, arcuate contact portions 38 are formed which extend from a base 36 and are spaced parallel to one another are arranged * to accommodate the plate 24 between them to be able to. The free edges 40 of the 5 # ile 38 overlay the base 36 and are spaced from one another at a distance that is less than the width of the plate 24.

The parts «38 have a radius of curvature slightly larger than that of the contact surfaces 26 and provide arcuate inner contact surfaces 42 towards their free ends, for Gripping the contact surfaces 26. The surfaces 42 are such that that their tangential planes are outside the socket converge and intersect between surfaces 42. A resilient tongue 44 knocked out of the base 36 is, is curved in cross-section as well as in longitudinal section, as shown in figure 3 and extends in the Bushing wet forward, with its free end below the

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inner surface of the base 36, as shown in FIG is. Another 7ur> i; e 4 (>, which is also based on »the base 36 is knocked out extends in the socket in the opposite direction to the tongue 44 and its free ünde lies inside the socket.

Each channel 2Θ has an enlarged rear portion 3β 'through which the bushing 34 can be inserted so that the free end of a projection 47 in the channel 28 between the parts 38 passes. The tongue 46 is depressed by the projection 47 during the insertion of the socket 34, then returns to its non-depressed position and snaps into engagement with a shoulder 47 'dec protrusions 47 and prevents the socket 34 from being pulled out of the channel 28 in the substantially the same moment at which the front end of the bushing 34 strikes against the lips 48 at the front end of the channel 28, which prevent further introduction of the bushing 34. The assembly is dimensioned so that the bushing j4 can move in the channel 28, with slight deviations in its alignment with the plate 24, which is immovable in de:;. Block 2 is stuck, compensate. Since the projection 47 passes between the walls "58", the bushing 34 can only be inserted into the channel 28 if it is in essentially the correct orientation.

The rfiook ό ir ι «Λ, formed in unity with him, Befeatigimgs -

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lugs 64 and guide lugs 58 with guide grooves 58 ', the lugs 58 projecting from the surface 30 along which a guide slot 60 extends which is in communication with the grooves 58 *. The grooves 58 * and the slot 60 are aligned so that they can receive an A _113a tζ 62 on the plate 4 when the blocks are to be brought into engagement so as to align the plates 24 with the sockets 34.

When each of the «plates 24 between the parts 38 of one of the Sockets 34 is inserted, takes. The tongue 44 resiliently to push the plate around its contact surface 26 against the contact surfaces 42 of the socket> 4. The introduction of the Plate 24 is facilitated by the arcuate shape of the tongue. Because the free end of the tongue 44 is not in the socket

protrudes into it, it does not hinder the introduction of the plate. The tongue 44 drtiokt the flattening · »24 in a direction at right angles ζ χ ier base 36. Since the contact surfaces 26 of the small plate the Kontaktfläehen 42 against the free edges

of the parts 38 tu grasp, and since the contact surfaces de flap adjacent to the smaller of the broad flats litgen of the platelet, becomes an essential component of the Coatact force directed at right angles to the base of 4 and reduced

corresponding to that component of the contact pressure, “calibrated normal wise”, is exerted on the contact surfaces 26 and 42.

The plate is therefore prevented from doing the parts 38 with it BATH ORIGINAL

to take such a wedge effect that it forces the parts 38 apart, and the contact pressure is εο by the Dnick determines which is exercised by the tongue 44, and is therefore precisely adjustable during manufacture. Such a wedge effect, if it were present, would be undesirable Wise the introducer * required to do the Bring platelets into the socket 34, increase, and thereby scrape off the corrosion-resistant coating, if any and thus damage and would also increase the force, which is required to pull the plate out of its seat. Since the force that is necessary on blocks 2 and 6, corresponds to the sum of the forces required to separate each plate 24 from the socket 34, this is desirably low if the blocks are light should be separable,. «. B. where 20 sockets are provided in each block. Since the wedge effect with the cutting angle of the There are five extra levels of the contact surfaces on a plane parallel cn the broad surfaces of the plate increases, the cutting angle is desirably small, preferably less than 30 °, (t.B, -between 17 and 27 °), as in the case of the embodiment, shown in Figures 1 to 5 (see Figure 4).

Sa the tongues 44 and 46 are located within the socket it is protected from damage when the socket 34 is not arranged in the block 6.

1515J7O

4fonn the parts 38 are bent, electrical contact can still be made between the plate 24 and the socket 34 provided that the wafer can enter between the parts 38, since the adaptation of the contact surfaces 26 to the contact surfaces 42 is generally independent on the angle of the parts 38 or the thickness of the platelet, and the insertion of the platelet tends towards the walls 38 to return to their normal shape. It is therefore evident that the construction described above is also expansive Tolerances allowed in the manufacture of the flat surface and the connection socket. The complementary design of the walls 38 und'des plate 24 ensures that the plate can only be introduced in the correct orientation.

Reference is now made to FIG. 6, which shows an arrangement in which two socket connection blocks form one Platelet connection lock, which is arranged in such a way that it is carry single printed circuit board (not shown), can, can be connected. A die connector block 68 has poured into it a number of Flättchenverbindungsetüqken 66, each consisting of a bread rail 70 with Contact plates 74a and 74b, similar to the plates 24, which protrude from one side of the block and are connected to the busbar 70 by connecting strips 72. Furthermore, small plates 74c, which are also connected to the busbar 70 via strips 72, protrude from the opposite side of the block 68. Lctnaeen 76 straighten

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10988S / 02S9

extends from the connecting pieces 66 through a further area of block 68 to pass through holes in the printed circuit board introduced and soldered to the board circuit to -.verden, so that the board is electrically and mechanically connected to the block 68 connected is.

The parts 66 are fixed in the block 68 eo that the Platelets 74a to 74c are relatively offset to the singriff. ^ bring with sockets similar to sockets 34 in socket connection blocks 78a through 78c. The Bread Bars 70 can be expanded further to carry more plates, to interact with a larger number of connection points

bushes than in Figure 6 have increased.

Guide pins 80 (only one of which is shown) on block 68 are arranged to cooperate with holes 82 in the socket blocks to align the blocks and guide them into operative engagement. The block 68 has a fastening extension »QO ¹ , which is formed into one unit

The lugs 76, as shown in FIG. 7, can be omitted A block of 6 can only be used as an intermediate piece Find. In this case, bus bars 86 have an equal number of contact plates 88a to 88c, similarly the platelets 24 extending through opposite sides

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1515570

dea blocks 90 extend, and the connecting strips 84 connected to the bread bars 86 Bind.

As a result, two pairs of connecting pieces are provided for each electrical line to be produced (as under Referring to Figures 1 to 7, it is ensured that, Vshould be the connection between a pair of Connections fail, the line is not interrupted

I - -

will. Where soldering noses are used, these are for the same Purpose doubled.

Figure 8 shows an embodiment in which the connectors and solder noses are not duplicated. A block 92, mounted on a printed stone board 102, carries connecting strips 92 * and 92b which are arranged in pairs "Ind. The strips 92a and 92b have corresponding contact plates 9β * vm * 9β "# ätaüioa" en plates 94a, which are printed on 3-circle-ready ... lOOa? one side of the board

102 are soldered, the rabbits 94b being soldered to printed circle strips 100b on the other side of the board 102.

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109IU / 0259

Claims (1)

Claims t 1 »Electrical connection socket for the sliding reception of an electrical contact plate, characterized by a Socket »which is shaped in such a way that it has a contact plate (24) which can accommodate the edges of a surface to form two arcuate, longitudinally extending cones taktfläohen (26) has rounded »the socket is formed by a pair of contact parts (38)» which extend from a The base (36) extends parallel to one another to form a pair of adjacent contact surfaces (42) are designed as opposing arcs which have tangential planes which converge outside the socket and intersect between the contact surfaces (42) of the socket; also by a resilient part (44) for exercising a Pressure against the platelet (24) »around the contact surfaces (26) of the platelet in contact with the contact surfaces (42) of the Jack to press « 2 * Connection socket according to claim 1, characterized in that the resilient part consists of a tongue (44) which is knocked out of the base (36), the free end of the tongue (44) normally lying below the surface of the base (36) . 3. Ansohlußbuchne ßemäß claim 2, characterized in that the tongue (44) in longitudinal direction and arcuate in cross section BATH ORIGINAL 109885/0259 4 · Electrical connection socket block with a series of channels extending through it and communicating with opposite sides of the block, at least one of the openings receiving an electrical connection socket according to claim 1, characterized in that the socket (34) is axially Eewegnng is held in the channel (28) in one direction by a stop (46) which is attached to a projection (47) of the block (6), and in the other direction by anchoring against a lip (48) in the channel (28), and that the projection (47) extends between the contact parts (38) of the connecting piece i wherein the stop (46) is pressed down during the insertion of the socket (34) by the projection (47) and then rises to to be attached to a shoulder (47 *) of the projection (47) * 5 · block according to claim 4, characterized in that the lip (48) is adjacent to one end of the channel (28) , one end of the bushing (3Ί) is arranged so that it is against the lip (46) during the introduction of the strikes at the same time that the stop (46) rises. Gi Lin requires assembly of electrical connectors from an electrical socket connection block according to claim 4 or 5 and an electrical plate connection block, the one electrical plate connector gum BAD ORiGiNAU 109885/0259 Engage with the socket connector characterized in that the plate connector (12 or 66) is cast in the block (2 or 68) and the Edges of a surface to form two arcuate, aioh has rounded longitudinally extending contact surfaces (26), the plate connecting piece having solder noses (18 or 76) and contact plates (24 eggs 74a to 74o), which are passed through different surfaces of the connecting block (2 or 68), having" 7. Assembly according to claim 6, characterized in that the blook (2) connected to a printed circuit board (4) which has a protrusion (62) with edges that engage in guide grooves (58), which are lugs (58) which are provided as a unit with the block (2), the projection (62) having a further edge, in a Sohlitz (60) in the Buohuönvorbinüun ^ oblock (6) intervenes 8. Jiine electrical connection between an electrical Contact plate and an electrical socket connector according to claim 1 daduroh characterized in that the flat · » ohen (24) the edges of a surface to form two curved, has rounded longitudinally extending contact surfaces (26), and godrüokt by a resilient 'file (44) is, so that the contact surfaces (26) of the plate a BATH 1 0988S / 02S9 Apply contact pressure against the contact surfaces (42) of the socket, the tangential planes of the contact zones of the platelet forming an angle of intersection with a plane parallel to the surface have dee -flättchens (24) which is not greater than 30 ° « 9 a connection according to claim 8 dadμΓch characterized, that the cutting angle is between 17 ° and 27 °. 10. A connection according to claim 8 or 9 characterized in that » that the contact parts (38) have free ion & itudinal edges (40), which are at a distance from one another which is less than the width of the plate (24) 11. A compound according to claim 8 _t 9 or IO or an arrangement according to claim 6 or 7 characterized in that the radius of curvature of the contact surface (26) of each small plate in wonentliohen equal to the thickness of the Halfto Plättchcna (24) let · 10988S / 0259 // 9 Blank page