DE1141355B - Electrical connectors - Google Patents

Description

The invention relates to an electrical connector at the rear of its contact member a device for holding and connecting an electrical part and on the front part of the Contact member has spring fingers, which with the spring fingers of a contact member formed in the same way a corresponding connector counterpart can be brought into engagement.

The invention has the task of producing an electrical connection that consists of a Insulator or connector body with one or more contact members that connect to the end or the Ends of one or more conductor wires or one or more cables are connected, and one corresponding connector counterpart with one or more designed in the same way and on the same way there is contact members connected to conductors. The two are generally the same connector are intended to be able to be brought into engagement with one another in such a way that an effective and permanent electrical Connection is created, wherein each of the connectors can serve as a coupling or a plug. The rear part of the connector is intended to connect to an existing conductor wire, as the case may be or can produce cables, while the front part has contact-making members that an unintentional Prevent the parts making the contact from being pulled out of the connector. The connection is said to be particularly suitable for connectors for closing multiple electrical circuits.

So far it has been customary to make electrical connections e.g. B. to produce that the appropriately shaped Contact members moved towards each other up to their end position and then withdrawn were, whereby contact-making parts were caught with each other. This had the disadvantage that both two movements had to be made when establishing and when disconnecting, while the Invention provides only a single closing movement, and that no contraction when making the connection the contacts took place. Another type of connection is that by means of clamp connectors, in which Pincer-like contact-making parts interlock and snap the same recesses in them are provided. This is also due to the requirement of two when making and breaking the connection movements to be carried out and characterized in that for each contact only a single, wavy shaped clamp is provided; a resilient abutment of the contact members after There is no contact between them. Other electrical connectors are through

Applicant:

Cannon Electric Company,
Los Angeles, Calif. (V. St. A.)

Representative: Dr.-Ing. H. Ruschke, patent attorney,
Berlin-Grunewald, Auguste-Viktoria-Str. 65

Claimed priority:
V. St. v. America of February 10, 1959 (No. 792 287)

Gordon-Willard Dean, Alhambra, CaUf. (V. St. A.), has been named as the inventor

Spade-like interlocking plug and socket parts marked, their form-fitting Connection by a spiral spring in a housing enclosing the contact pieces is still improved becomes, which again has the disadvantage of a somewhat more complicated structure and therefore a more expensive production brings with it. Above all, none of the electrical connectors previously used there is a train of the contact members towards one another which occurs when the connection is made been, which may be sufficient, on a locking device that the cohesion of the contact members contained insulator or connector body ensures that you can do without.

According to the invention it is proposed that the contact members as arranged side by side, in the direction towards the connector counterpart, that is, to form spring fingers running forward. At least one of these fingers has a rearward part that extends from the longitudinal axis of the limb extends outside, and to equip a flat contact part, which from the rear part to the front and inclined inwardly from said axis. This allows when plugging together of the connector pieces, the contact fingers of one connector piece with those formed in the same way Bring fingers of the connector counterpart into a contact position in which the flat contact part of the one contact finger with the corresponding flat contact part of the other contact finger lies together and the above-mentioned train of the two contact members is exerted on each other.

In a particularly important embodiment of the invention, the contact members are in the form of three

209 748/243

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adjacent fingers formed, of which are designated, formed electrical connector,

the flat contact-making part of the middle finger as provided by the invention. In the illustrated

the one direction and the two flat contact embodiment, the two connector parts in the

giving parts of the side fingers in the opposite essentially the same structure and can, set direction against the axis of the Kontaktgüedes 5 as shown in Fig. 2, by interlocking the

are inclined. In this embodiment, the invention contact members 12 and 13 of the part 10 in the ent-

The connection is made to the connector piece and connector-opposing contact members 14 and 15 of part 11

piece exerted a certain mediating effect and brought into engagement with one another. How after-

as a result, a possible incorrect setting can still be explained in detail standing upright of the relevant contact members on top of one another, each of the contact members with the ends of the relevant

by connecting the opposing central ends of conductors 16, whereby the

finger of the contact members a pressure in the one electrical connector for connecting the conductors of the

Direction towards each other and the side fingers of both - one connector part with the conductors of the other

side contact members can serve in an opposite connector part.

Direction to exert pressure on each other. 15 Each connector part has a body or block The invention further proposes at least 19 made of non-conductive material. For manufacturing the mentioned spring finger has a rear part, the block is made of a synthetic polymeric vein against the longitudinal axis of the Kontaktgüedes after tion product, z. B. nylon, preferred. The block 19 is is inclined towards the outside, and a flat contact-giving substantially cylindrical shape, in the Querden Part to be provided, the section of said rear 20 rectangular, and has a front end face Part of the front and against the mentioned longitudinal 20, a rear end surface 21 and the side surfaces axis is inclined inwards, with one of the 22, 23, 24 and 25 on.

two flat contact-making parts against the axis The block shown consists of four strips of the Kontaktgüedes inclined in one direction, which is composed of non-conductive material, whereby this is the direction of inclination of the other contact-making 25 strips for the block 19 of the connector part 11 according to part opposite. 1 consisting of a lower strip 26, a strip 27 lying over one another in order to facilitate the introduction of the contact-making parts in this lower strip, are e.g. B. in the case of the three-lying strip 28 and a strip 29 finger arrangement of the middle finger on his in the following. The strips 27 and 28 are identical to one another in their conformation of the front edges 30 lying on the side fingers, in terms of construction details,
and the side fingers beveled at their edges lying in the vicinity of the middle finger. One also consists of four strips, which are provided with reference numbers to facilitate the introduction of the contact members, which correspond to those legs in each other through an introduction part on the train number, which causes the respective strips of the front end of each finger, which is 35 blocks 19 of the connector part 11 denote. The Beauf the same side of the axis as the planar contact numbers for the individual strips of the block of the giving part of this finger of this planar connector part 10 are marked by a (') marked part to the front and to the outside, which the components of the Connector part 10 of tends. the corresponding components of the connector part

The invention is particularly suitable for a 40 11 differs. As you can see, the stripe appears

electrical connector with several contact parts, fen 26 'of the connector part 10 in the upper part of the

which close a number of electrical circuits. Fig. 1, while the corresponding strip 26 of the

provided by the present invention connector connector part 11 when it is shown as in Fig. 1

The parts can be viewed from a number of structural parts, as a strip at the bottom.

shape that seems the easy union of any 45. In the same way, the other strikes

desired number of contact parts, from which a fen that form the block of part 10, as in relation

Connector part should exist, allow. on the corresponding strips in the block

On the basis of the drawings, an extension of the connector part 11 is now to be turned upside down. Everyone

exemplary embodiment of the invention are described. Klotz is designed in such a way that it can be combined with another Klotz

Fig. 1 shows a longitudinal section through one of the Er- 5o fits together when it is 180 ° against the other

finding is rotated about its axis according to executed electrical connector so that, for. B. the side

is, whose two connector parts separated from each other surface 23 'of the block of the connector part 10 according to

are reproduced; the mating of the connector parts with the

FIG. 2 shows a side surface 22 of the block 19 of the connector part 11 in the same plane as in FIG. 1

longitudinally cut electrical connector, but 55 lies flush,

in the closed position of the connector parts; Looking now at Fig. 4, 5 and 6 of the drawing

Fig. 3 is a view taken along line 3-3 of the voltage documents, so it can be seen that a contact member

Fig. 2 is shown through the connector made section 14, as it is for example from a long, flat

know; metal strips with end edges 32 and 33

Can be Fig. 4 is a plan view of an electrical con- ^e represents °. In order to provide guidance in the present

clock element according to the present invention; Description on the drawing documents

Fig. 5 is a taken along line 5-5 of Fig. 4 by making this easier, it is assumed that the contact strip

Contact member laid longitudinal section and an end part 34, which is designed as the contact

6 shows a perspective view of this contact-leading end part and that of the end member with connected conductor. 65 edge 32 of the contact strip ends, one with the

Upon closer inspection of the drawings, conductors connecting end portion 35 result, the one at the end edge

this ends as representations of one of two connectors 33 of the contact strip, and between them

parts, which with the reference numerals 10 and 11 generally end portions a central portion 36 has.

in the opposite direction, d. i.e., when a contacting stripe appears in FIG. 6, the Side finger from bending line 55 downwards, then at bending line 56 upwards again and then from there on 5 bent down again at bend line 57 so that end insertion parts 58 'are made which have a enable easier interlocking in corresponding side fingers of a contact member. The corner edges of the front finger ends will be

The connecting to the conductor end portion 35 of the illustrated embodiment is designed so that one
the side edges of the contact strip against each other
bends in, so that someone at the extreme end hangs out
tubular part or a sleeve 37 is formed, which around
the outer surface of a jacket or cladding
38 of the conductor 16 is pressed around. The wire core
of conductor 16 is denoted by reference number 39.
The contact strip is provided with incisions 40, whereby a piece of tubular part io with preference, as can best be seen from FIG. 4,

41 is formed of a smaller diameter, with beveled to ensure the engagement of the contacts in one another.

which the end of the wire 39 of the conductor crimps other to facilitate.

The way in which the contact elements of the connector connection between the contact strip and the conductor are connected to the corresponding contact elements of the connection. Of course, derteiles 11 can intervene with the conductor 15 or lie against it, the connecting end portion of the contact strip can also best be seen in FIG. In particular, if one considers conventional embodiments, e.g. B. find a special the contact member 14 of the connector part 11 solder cup construction, application. and the contact member 12 of the connector part 10, which, it is an important feature of the present invention, in order to be able to engage with one another, finding that the contact members are directed at the ends of FIG. 20 and are mirror images of one another, conductors are connected and then into the the connector so you can see that the end lip 58 of the middle finger share contained blocks are used, where it is inclined downward of the contact member 14, whereas are secured against pulling out. For this purpose, the end lip of the middle finger of the contact member 12 is directed upwards from the middle part 36 of the contact strip, so that when the interlocking spring finger 43 is knocked out, an opening 44 remains in the metal 25 of the middle finger of the contact member 14 under the strip . The resilient middle finger of the contact member 12 slides, with a retaining finger running longitudinally against each other, until the inner surfaces of the contact strips, the finger end 45, which delips on corresponding inner surfaces of the opposite to the conductor connecting end portion of the strip inclined parts of the Finger lies between the flexural joints, merges into the strip, while the lines 55 and 56 apply. The fingers are then whose finger end 46 is free. This way, these fingers can stick to each other evenly. In the same way, bend its opening towards or partially into it- the side fingers of the contact member 14 are first pressed, e.g. B. when the contact strip is inserted into the through and then lie against the corresponding Sei-insulating block, and then the tenfinger of the connector part 12 jumps when the contact fingers, if this is possible, are plugged together outward into the 35 members, in Fig. 5 reproduced position, whereby the order now to speak again to construction details of the end 46 of the finger against a shoulder (which is to be identified in more detail in the block 19 and on the thin strips 26 to 29) , from which the block forms the inside of the block so that it is out, the strips are designed so that they are prevented after the contact member has been pulled out of the block. 40 they have been laid one on top of the other, a number of open-The contact-making end portion 34 of the contact strip form well, which through the block of is narrower than the central portion 36, whereby shoulders extend from one end of the same to the other and 48 arise from the side edges 49 of the member can take up the respective contact members. The telteiles extend axially inward. The shoulders cross-sectional views of FIGS. 1 and 2 show only 48 shoulders on the inside of the 11 that are complementary to them (two contact members 14 and 15 for the connector part described in more detail in 45 below); the block shown, however, is so constructed, block and thus limit the extent to which it is pushed into the block 14 and 15 in the plane or row of contact members of the contact strips, which can be referred to below as row α. In the contact-making end part of the net should be able to accommodate three contact members. Contact strips are two at a distance from each other 50.Around the construction details of the inner walls, parallel slots 51 are provided, which can better break through the end edge 32 that form the block openings 61 and thus show a middle finger 52 and an opening at the bottom 61 a 3 two side fingers 53 let arise. The middle finger of the series α for the connector part 11 without it being reproduced by the axis of the strip between its ends sensitive contact member. Also at the line 55, where it merges into the strip, after 55, if you look at Fig. 3 of the drawing, you can see that it is bent outwards, so that it extends from the strip axis of the block 19 of the embodiment shown to a transverse bending line 56 to the outside a row arranged next to the row α or inclines, from where the finger can again pick up the strip layer b of contact members, but the axis is inclined. In the vicinity of the end edge 32 there is again a block opening 61 b 1 of the row b without middle finger along the bending line 57 again outwardly 60 therein lying contact member, bent so that an end or lip-shaped opening 61 for the contact members are Guide part 58 arises, which a slight interlocking by forming longitudinal depressions in the grip of the middle finger of a contact strip with the lower and upper surface of the number of thin strips of the middle finger of another contact strip, with fen, from which the block is formed, made where it comes into contact is to be brought, made possible by z. B. can borrow a recess in the overhead. The side fingers 53 are also depressed from the surface of the intermediate strip 28 exactly with a verder axis of the contact strip outwardly, which bent into the lower surface of the upper strip 29, but is formed in one for the bend of the middle fin, and thus an opening.

has a protruding or male portion 74 which protrudes outwardly beyond the front wall 20. Such outwardly protruding parts 74 serve to protect the outer ends of the contact fingers of the contact members. The outer ends of the parts 74 are denoted by the reference numeral 75. A protruding part 76 serves to separate a block opening 61'a'l in the α series or layer of contact members from the block opening 6Γ V 1 of the series lying next to it

or groove parts 63 are just wide enough, the edge io of contact members, parts 49 to be able to accommodate, whereby the side The other half of the Klotzöfinung61 al for the

walls of the guides a contact member on the Dre contact member 14 is through a recess in the

Forms normally for the contact member 14. Since the Openings 61 can accommodate the respective contact members after the members are at the ends of the conductors have been attached, opposing guide parts 63 are provided in the block openings, which begin on the rear end face 21 of the block and on rearward shoulders 64, which receive the side edge portions 49 of the central portion 36 of a contact member, terminate. This leadership

35

can prevent hung around its longitudinal axis. The guide grooves 63 are also deep enough, only the middle part a contact member to create a good fit between the reasons of these grooves, whereby the Side edges 49 of a contact member hold the contact member in its Klotzöfinung so that it is against this block cannot have a misalignment of the axis. Butt shoulders 48 on the contact members against shoulders 64 of the block openings and thus prevent axial movement of a contact member in its opening towards the front end 20 of the block.

The recesses forming the openings 61 are recessed or countersunk in 66 and 67, around the tubular To be able to accommodate parts 37 and 41 of a contact member. In the illustrated embodiment the contact elements are completely inside the insulation block. Of course do not need the conductor connection parts of the contact members completely inside the insulating block to lie, because in some systems such end parts can also be on the rear end surface 21 of the Protrude out of the block.

At the inner end of the recess 66 for the lower surface of the block strip 29 is a protruding surface 68 which extends to the inner end of a recessed part 69. This construction detail can best be seen in the lower left part of FIG. 3, which reproduces an opening 61'b'l of the connector part 10, this being shown without a contact member located therein. This part of a block opening, which is designated by the reference number 61'b'l , is formed on the upper surface of the block strip 27 ', which is always identical to the lower surface of the strip 29. If a contact member is inserted into its block opening, the spring finger 43 on the contact member is pressed toward or into the opening 44 by sliding contact with the protruding surface 68. When the shoulders 48 of the contact members then reach the shoulders 64, the spring finger can snap into the recess 69, where its free end 46 will rest against the adjacent shoulder 70 which forms the bottom or the inner end of the recess 69. Thus, when a contact member is inserted into its opening in the manner just described, the spring finger 43, by abutment against shoulder 70, will prevent the contact member from being pulled out of its block opening in the axial direction towards the rear surface 21 of the block.

In front of the recess 69 , the block opening a1 is set in the lower surface of the block strip 29 for the contact member 14 (as does the opening 61'b'l) as a recessed part 72 of larger cross-sectional dimensions.

55

60

Solutions for receiving the conductor connecting end part of a contact member continued. Each of the block strips forms the upper surface of the intermediate strip 28 of the block, and the details of construction thereof are best seen in the lower right-hand part of FIG. 3 as opening 61 oil. The recess 61 b 1 in the strip 28 is generally similar to the recess 61 'V 1 described above, but there is no recess in it which corresponds to the recess 69. The two recesses for the block openings 61 a1 and 61 1 1 in the upper surface of the block strip 28 are separated by a protruding part 78 which ends at the bottom wall 79 of a recess 80 arranged at the front. The recess 80 runs between the two adjacent block openings of the a- and ö-row and thus provides a base part formed by the recess 80 which can receive a plug-in part 74 'at the front end of the strip 27'. The block parts 74 are narrower than the dimension between the side walls 24 and 25 of the block 19, so that they can be lifted from corresponding recesses 80.

From the above description it follows that each block 19 consists of a number of strips lying one on top of the other, with indentations in one area for the intermediate strips 27 and 28, as described above for 61b 1, and indentations in the other area, as above for 61'b ' l described, are molded. In the outermost parts 26 and 29 of the stack of strips, depressions, as described above for 61'b'l, are formed in one, 29, while in the other, outermost strips, 26 depressions, as above for 61'b'l, are formed b 1 described, are molded. Thus z. B. the upper surface of the openings separating the protruding part 78 of the intermediate strip 28 with the protruding part 76 of the strip 29 separating the openings from one another. Before the contact members are inserted into their respective block openings, the various block strips z. B. combined with one another to form a stack with a suitable solvent acting as an adhesive.

In some systems it may be desirable to have the blocks encased by a jacket, e.g. B. Jacket 83 for the block of the connector part 11 and jacket 84 for the block 10. The jacket 83 has an end flange 85 which overlaps the outer surface 21 of the block, and has a bead 86 which is in a provided in the outer surfaces of the strips 26 and 29 Groove 87 fits therein; The end flange and bead serve to hold the jacket on the block. The jacket 83 can also have an outwardly extending flange 88 at its front end, with which the connector part 11 can be fastened in an opening 89 of a field 90. For a plant in which the flange 88 is used, the connector part 11 serves as a receiving part and the Connector part 10 as a plug, however, well

45

stood, the blocks also without a coat and also as devices with coats, but without any structural parts can be used, which identify one as a coupling part and the other as a plug part became.

It is also contemplated that the blocks 19 are also combined to form a block battery. So is in Fig. 3 along one side of the block 19 is a corresponding block 92 and on its other side another corresponding block 93 is reproduced. To allow the blocks 19, 92 and 93 to move axially prevent, they are provided with tongue and groove constructions as shown at 94. With a system, with using a number of juxtaposed blocks, the jacket 83 will be best accommodate all of these blocks to serve as a connector part with a large number of contact members can.

While the present invention has been illustrated and described above with reference thereto what is believed to be the most practical and preferred embodiment is, on the other hand, admitted, that one also develop different embodiments within the scope of the invention can, which the latter should therefore not be restricted to the details given here, but rather the the features identified in the claims are to be included in their entirety.

Claims (5)

PATENT CLAIMS: 1. Contact member for an electrical connector with a device for holding and connecting an electrical part on the rear part of the contact member and with spring fingers on the front part .4es contact member, which are brought into engagement with the spring fingers of a similarly designed contact member of a corresponding connector counterpart can, characterized in that the spring fingers (52, 53) extend forward and run side by side in the longitudinal direction, of which at least one spring finger (52) has a rear part which extends outward from the longitudinal axis of the contact member, and that at least said one spring finger (52) has a flat contact-making part which inclines from said rear part forwards and inwards to said longitudinal axis, so that when contact is made the flat contact-making parts of the corresponding spring fingers of both contact members rest against one another and the F Lock the contact members together. 2. Contact member according to claim 1, characterized in that at least two of said Spring fingers (52, 53) have said rear part, which extends from the longitudinal axis of the contact member extends outwards, as well as a flat contact-making part, which extends from said rear part inclines forward and inward to said longitudinal axis, the one of said flat contact-making parts with respect to the axis of the contact member inclines in a direction opposite to the direction of inclination of the other flat contact-making part is. 3. Contact member according to claim 1 with three adjacent spring fingers, of which one represents a middle finger and the other fingers on both sides of the middle finger represent side fingers, characterized in that both the middle finger and the side fingers with said rear part and the flat contact-making part are provided, the flat the contacting part of the middle finger is inclined to the axis of the contact member in one direction, which is opposite to the direction of inclination of the flat contact parts of the side fingers. 4. Contact member according to claim 1, characterized in that the front end of the middle finger (52) is beveled near the side fingers (53) and that the front ends of the Side fingers are beveled near the middle finger. 5. Contact member according to one of claims 1 to 4, characterized by an insertion part at the front end of each finger, which extends from the flat contacting part of the relevant Fingers (52, 53) tilts forward and outward on the same side of the axis like the flat contacting part of the finger in question. Considered publications:
U.S. Patents Nos. 2,682,038, 2,497,523,
736 1 sheet of drawings © 209 748/243 12.62