DE1790230A1 - Busbar contact arrangement for printed circuit boards - Google Patents

Description

DIPL-ING. HORST RUSE DIPL-ING. PETER KOSEL PATENT LAWYERS 1 7 Q Π 9 "3 Π

■■■ .. '3353 B «d G.nd.r, h.im, January 5, 1970

Hohenhöfen S.

Telephone: (05382) 2842

Telagram address: Sledpatant Ginderehelm Our file number: 2494/13.

i'lco Corporation

Patent application dated January 5, 1970 Exclusion from P 16 40 024.1-34

Elco Corporation

998 B Easton Road Warrington, Pa. 18976 U.S.A.

Busbar contact arrangement for printed » circuit boards

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The invention relates to an arrangement for printed circuit boards, with an elongated flat strip forming a main part,

In assemblies having multiple printed circuit boards, it is often necessary to apply multiple operating voltages to each circuit board. "The usual procedure is to supply the same contact tracks on all circuit boards with the same operating voltage, e.g. contact track t with +12 Y, contact track 2 with -12 V, contact track 3 with ground, etc. it then necessary, these operating voltages (or other signals too) s for each circuit board to provide the same place at your disposal "

To do this, you can connect the corresponding connections to raeurerer contact strips with each other, but what An eagle owl requires the corresponding effort and the risk so.ii eight connections, e.g. through cold Iötstelien,

-.issi "fc irioii brings.

Sankkor.i ^ .BrsurudiAilolacinSHaUbank, branch B »dQ» nderih »lni, account number 22. (1i.970 ■ PottMheckkento: Hannover 06718

.- »■■. ' $ 1 9 3/7 7 0

8A omrnmi

It is therefore an object of the invention to provide a rail contact assembly that is simple is to be made and results in a good electrical connection.

According to the invention, this is achieved in a busbar contact arrangement mentioned at the outset in that several support members are provided which lie in one plane with the main part and are spaced apart from one another and extend perpendicular to the longitudinal direction of this strip away from the main part, so that each one curved finger is connected to one of these support members and forms a curved surface, W which runs perpendicular to the longitudinal direction of the flat strip, and that the grazing i'inger is each designed for tangential contact against one of several printed circuit boards, which are perpendicular to the .longitudinal direction of the flat Strip oriented parallel planes are arranged. In this way, a contact arrangement is obtained which is very easy to manufacture and install and which ensures very good contact with the individual circuit boards. If no contact is to be made at one point, this can easily be achieved by removing the corresponding contact finger for this point.

£ The contact arrangement according to the invention is advantageous

also designed so that a support member each over a U-shaped arch with a parallel to the support member, the grazing i'inger supporting swivel arm is connected, and that the swivel arm in an approximately perpendicular to the plane of the S support plate is, with the practical der.streifende finger with the Swivel arm is connected via a 90 ° bend.

Further details and advantageous further training of the invention emerge from the execution document shown below and in the drawing, as well as from the subareas.

BAD ORIßlWAL

Show it*

Fig. 1 is a perspective representation of a number parallel connecting parts embodying the contacts according to the invention with fastened in the connecting parts, schematize !! illustrated printed circuit boards,;

I ¹ Ig. 2 is an enlarged sectional view along the line I 2-2 of JIg. 1, j

Pig. 3 a cut to the line 3-3 of Pig. 2,

fig. 4 is an enlarged sectional view taken along line M 4-4 of the Pig. 1 _t s ^

Pig. 5 is a sectional view taken along line 5-5 of FIG

Pig. 6 is a view of the in Pig. 4 contact shown from behind, ■.

Pig. 7 is a view of the in Pig. 4 from the \ front, and '

Pig. 8 a sectional view along the line 8-8 of Pig * 7 »j

■ ■ - ■ ■ ■ '.-- ■ "-.- ■■ -" ■■■■■■■' (

In Pig. 1 is an embodiment embodying the invention, generally I.

shown with 10 designated connecting part, which has a 1 question plate 12, in which the end-side receiving struts 14 J and inner Aufnähmerinnen 16 are attached. The recording IM troughs are made of an elastic thermoplastic material and in G 'groups aligned and arranged for receiving the respective edges of a number of printed Söhaltungsplatten 66, contacts 18 siad la the end receiving channels H attached. Contacts 20 (fig * 4, 6, 7 and 8) are fastened in the inner »receiving channels» The washers of the contacts 18 and 20 are the same, and: the contacts differ only in that the l $ as © nteil The contacts 18 protrude from a continuous strip or fine rail 22, while the contacts 20 are separated from one another.

109603/0700

As shown in FIGS. 4 to 8, the nose portion of the contacts

18th

and 20 a grazing finger 24, which by a

• The pivot arm 26 is connected to the support leg 28. Of the Finger 24 is forked and has two legs 30 and 32 which are connected by a continuous strip portion 34. As shown in FIGS. 6 and 7, the legs 30 and 32 are in the ^ Width slightly different to ensure that the resonance frequencies the pendulums are different. The overall width of the grazing contact finger 24 is approximately equal to that Width of the conductive xselags on the printed circuit board, with the result that there will always be at least one of the

»Both legs in mechanical and electrical contact
with the conductive covering, no matter which vibration frequency the connection part is exposed to. As shown in Fig. 4, the grazing contact finger 24 is convex and forms a curved surface which is tangent to the plane of the printed circuit board, thereby facilitating the insertion of the printed circuit board into the connection part.

In FIG. 8, the continuous strip part 34 of the contact finger 24 is connected to one end of the pivot arm 26 by a 90 bend 38 which merges into the continuous strip 36 of the pivot arm 26. As a result, the pivot arm 26 lies in a plane which is perpendicular to the jjbene W of the printed circuit board. The other end of the pivot arm 26 is connected to the support leg 28 by a U-shaped arch 39 so that the drag leg 28 and the pivot arm 26 lie in planes that are parallel but spaced from one another. The widened section 44 near the continuous strip 36 on the pivot arm 26 as well as relaxation incisions 42 and 46 offer a possibility of slightly modifying the spring properties of the nose of the contact.

As shown in Fig. 4, the main part of the contact consists of the strip 48 and the attachment sent-ukel 50, both of which are co-planar are and an extension of the 'jjragscüenkels 28

109883/0700 _BAD

"The width of the" strip 48 is about three times the width of the supporting leg 28, while the width of the fastening leg 50 is about half the width of the ijtreixeixs 48. The lower jJnd 52 of the main part is ν er j Un ₁ Jt uiiu passes over into the square end section 54 of the iionLakto. As shown in some 6 and 7, the main part of the coutatcts has the same thickness as the end section 54. The ivasei part of the contact is, however, somewhat thinner in order to increase the peaeruri . The contact is einstüc-vi ';., and is of a stamped blank by enta it xiiegeii a single stripe ens of resilient ζ Ά phosphor bronze or Berylliumicupfer formed...

The contacts 20 are used in the inner receptacles 16, each of which has end walls 84, side walls 86 and a base 8b. In addition, the upper cord of the end walls 84 'has partitions 100 which form a channel 1Θ2 with beveled jjixilasskaiiten 104 "to facilitate insertion of the printed circuit board into the channel 102. From the base 88 protrusions 90 extend downwardly through apertures whether to pass in the iragplatte twelfth the warts 90 habüxx aogellε> cute side walls 10ό and run as Pig. 4, ends 92 into tapered n / and form a Üperrscxiulter 94 "iit the underside of the -xragplatte 12 comes into engagement in order to hold onto the support plate 12. As shown in FIG. 4, the lugs 90 can either be solid through a central bore S 6 for opening This arrangement is used when conductive pads are provided on the printed circuit board only on one side, and when conductive pads are provided on both sides, two contacts facing each other must be used, and in the sem i'all both warts 90 holes 96 would have. In addition, the receiving channel 16 has two opposing recesses 98 formed in the base 88 for receiving the strip 48 of the contact. The contact 20 is secured in the receiving channel 16 by inserting the end section 54 into the bore 96 until the tire 48 is seated in the recess 98. The ■ fastening

10 988 3/0700 IAD

supply leg 50 is frictionally in engagement with the .bore 96 » where the contact is securely attached to the recording screen.

The contacts 18 are grounded at the end receptacles 14 used, the And walls 58 and 60 have side walls. jjine Guide 62 is designed as an extension of an end wall 58 and has a downwardly facing slot 64 with a bevel 65 to facilitate entry of the printed circuit board 66. The base 68 of the contacts 1b v / e is a number Recesses 70 on which the grazing contaictf ing he 24 eggs Receive contacts 18, as well as a number of slots 72 which pass through the side walls 60 and each with the recesses 70 are connected to receive the strip 22 of the contacts 18, partitions 74 parallel to the end walls 58 divide the recesses 70 into individual contact chambers. Of the central channel 76 in the partition walls 74 provides space for the Edge of the printed circuit board. From the base 68 protrude downwardly provided with openings 78 protruding pass through openings 56 in the support plate 12 and in tapered ends 80 run out, which trains a locking he 82 oilden, which engages under the underside of the support plate 12 and holds the receiving groove on the support plate. Each V / arze 78 has a central hole, which the j3efungsstenkel 50 des Contact 18 receives and is connected to the slot 72. .

Pur any printed circuit board 66 used is a pair of end receiving grooves 14 on the support plate 12 by pressing the lugs 78 into the openings 56 in the manner attached that the channels 76 are aligned in the end receiving grooves 14 and the distance zv / isohen the Guides 62 are sufficient to hold the printed circuit board in question to record. The tapered free ends 80 of the lugs 78 and the elasticity of the thermoplastic material, e.g. nylon or a polycarbonate resin, facilitate the insertion of the lugs 78 into the openings 56. Thereafter, the Slots 72 in all end receiving grooves on one side of the support plate 12 aligned so that, as fig. 3 shows the contacts 18 inserted into the receptacles can be made by inserting the end portions 54 into the

. _{BAD0Rl (älN} * L

Holes of the warts 78 are pressed in until the legs 50 sit in it and the strip in the aligned Slots 72 rests.

In this way, the contacts 18 at the end Aui'iiaiime channels 14 attached and isolated from the support panel 12. The space between an aligned pair of ends Aui'iiiJaaerinxien 14 v / ird is filled in with inner AufxLaliiiierinneii 16, which are fastened to the support plate 12 in the manner already described. By using IIiodular admitters can post printed circuit boards practically any width can be accommodated.

-When the edges of the printed circuit splat th into the aligned channels 76 of the end Äuinahmeriiinen 14 and the aligned channels 102 of the inner receptacles 16 are introduced, the grazing contact fingers 24 of the contacts 18 and 20 are bent towards the neighboring ones Side walls 60 and 86 of the receiving channels. Additionally can both the [Cragscherikel 28 and the pivot arm 26 yield, being abutted the trailing edge of the section 44 against the side wall of the receiving channel contributes to the production of the spring force of the contact arc. This spring force can γόη bends over a range made essentially independent of the turn, to allow the grazing contact finger on printed circuit boards of different thicknesses are the same 'Exercise grip.

The number of strip contacts 18 used depends on the requirements of the circuits on the printed circuit boards. The arrangement of end receptacles shown in Hg. 1 enables the use of a total of five contact strips in order to apply five different voltages to the conductive coverings of the printed circuit boards. If a bestinuute printed Sehaltuiigsplatte to the _# about vorhaiideuen conductive coating loading no Iieistenverbindung ■ ". '

is necessary. the contact nose can be separated at this point ^w fat0mtaaw (nim

be like in Pig. 2 shown.

OtpL-Infl. Horst Röt " ΟΙρΙ, -Ιης. Peter Kosel

109883/0700 '

Claims (2)

DIPL-ING. HORST ROSE DIPL-ING. PETER KOSEL PATENT AGENCIES 17QD ?? !! 3353 Bad G.ndersheim, 5. J 811Uf Γ 1 Q J / Hohenhöfen 5 Telephone: (05382) 2842 Telegram address: Siedpatent Ganderehelm Our file number: 2494/15 Elco Corporation Patentgesucii of January 5, 1§7o Eliminated from P 16 40 024.1-34 O patent claims
Overhead contact arrangement for printed circuit boards, with an elongated flat strip forming a main part, characterized in that a plurality of mutually coincident with the main part (22). Distance 'having l'ragegegiieder (28) are provided, which extend perpendicular to the longitudinal direction of this strip away from the main part (22), since each a curved grazing finger (24) is connected to one of these I-support members (26) and one forms curved surface which runs perpendicular to the longitudinal direction of the flat strip, and that the striking linger (24) each to the tangential; Facility against one of several printed scnaltuu. plates (6u) formed ίεΐ, which are arranged in perpendicular to the longitudinal direction of the flat Streifeut oriented * parallel planes. 2. Busbar contact arrangement, na cn claim 1, marked by the fact that the main part (22) several of one another having a distance, themselves . extending perpendicular to the longitudinal direction of the ötreifena . Connection elements (54) are provided. iia / Rg. Bank account: Braunachwalglach State Bank, Bad Ganderaheim branch, account no. 22,118,970 ■ Poetecheckkonto: Hannover 66715 109883/0700 ORIGINAL 3 » dar.aiielachieneii-Kontak.ta.uordij.un ^ according to claim 1 or 2.,. aadurcii, that there is one carrying song (2b) in each case. ü.bt: r a u-förmitjen £ 0 _o : en (59) ^ it a parallel 2um jjx'3, 'e ^ j.ied (2.δ) veri; .. ui'eij.deii, the strip end jj'iiiger (24) trs. Oi-ueij- jciiv-exj-karμ. (2ό) verbunueu iat, and da ^ der öc-hv.enkis-i · ..; (^ 6) lü an approximately Bexiicrecüt zur .üDc-ue der dchaltungsoir.tte (6g) verlc: .ui'endeij. practiced lies * . 4 · o;: _-:; iae.lschierien-ivontai: Ltanordnurig according to claim 3, characterized dudurcu * DAT the roaming finger (20) is connected to * dea pomvenkarm (26) via a 9ö ° -i3Ogen (38) * PatenlanwSlt « .-Ing. Horst Röte DipL-tog. Peter Kosöl , 10.9 8 83/070