US3202955A - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
US3202955A
US3202955A US261967A US26196763A US3202955A US 3202955 A US3202955 A US 3202955A US 261967 A US261967 A US 261967A US 26196763 A US26196763 A US 26196763A US 3202955 A US3202955 A US 3202955A
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United States
Prior art keywords
board
contacts
bodies
resilient
connector
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US261967A
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English (en)
Inventor
William H Mckee
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United Carr Inc
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United Carr Inc
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Priority to GB1047487D priority Critical patent/GB1047487A/en
Application filed by United Carr Inc filed Critical United Carr Inc
Priority to US261967A priority patent/US3202955A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits

Definitions

  • the present invention relates to an improved electrical connector and more specifically it relates to an improved edge connecter construction intended to at least minimize sliding wear on the printed circuit portions of circuit boards and on the contacts of the connectors during insertion and withdrawal of the boards into and from said edge connectors or establish or allow no more than a relatively low amount of friction between the sliding surfaces suflicient for a wiping action without excessive wear.
  • the electrical connector or connector construction or" the present invention accordingly, is directed to the pro vision of an improved connector adapted to at least minimize or hold within allowable limits abrasive or sliding wear upon the printed circuit portions of the boards and on the contacts.
  • the edge connector of the present invention involves a two part construction wherein a printed circuit board is inserted between the two parts and the latter then placed in a clamping relation with said board. The board, therefore, is inserted between the connector parts when the latter are loose or unclamped.
  • a further object of'the present invention is the provision of an improved electrical connector construction for printed circuit boards wherein wear upon the printed circuit portions of the boards and on the contacts of the connectors is at least minimized or held within allowable limits providing for Wiping during insertion and removal of the boards within and from the connectors.
  • Another object of the present invention is the provision of an' improved connector construction for printed circuit boards wherein a single board for example is insertable into the connector and the latter placed in a clamped condition with said board to realizedelectrical interconnection between the circuit portions ofsaid board and said connector.
  • a further object of a preferred form of the present invention is the provision of an improved two part electrical connector wherein both parts are identical in construction.
  • Another object of a preferred form of the present invention is the provision of an improved two part edge connector for printed circuit boards wherein each of said ice parts is identical in construction and adapted to be assembled in loosely opposed relation to receive a circuit board, said parts to be brought into clamped relation with an interposed circuit board after at least relatively easy insertion of said board to at least minimize sliding wear upon the printed circuit portions of said board and contacts of the connector.
  • FIGURE 1 is a view, in perspective, of a preferred form of connector of the present invention showing a printed circuit board received therewithin in electrically connected relation therewith;
  • FIGURE 2 is a face view of one of the L shaped insulating bodies of the connector together with its resilient pad and contacts, the side leg only of another such insulating body being shown fragmentarily in dotted lines;
  • FIGURE 3 is a greatly enlarged cross sectional view of a mid portion of the base leg of the insulating body of the connector shown in FIGURE 2 without the resilient material and contacts thereon;
  • FIGURE 4 is a greatly enlarged cross sectional view taken along the line 4--4 of FIGURE 2 and in the direction of the arrows;
  • FIGURE 5 is a greatly enlarged side view of a slightly different form of electrical contact for the connector illustrated in FIGURE 1;
  • FIGURE 6 is an enlarged fragmentary cross sectional view of a portion of the edge connector in the spaced condition it would normally be in when the connector is in a vertical position (even though illustrated horizontally), the figure also showing a pair of slightly different insulating bodies and slightly different contacts therefor;
  • FIGURE 7 is a view similar to FIGURE 6 but showing the printed circuit board in electrically connected relation with the connector;
  • FIGURE 8 is a top plan view of a preferred form of multiple connector for a number of printed circuit boards according to the present invention.
  • the connector generally designated 10 comprises a pair of identical though reversely positioned to each other electrically insulative bodies 12 and 14 of a suitable plastic for instance.
  • Each of the bodies 12 and 14 has a side leg 16 and a base leg 18.
  • the side leg 16 of each insulating body defines a groove 20 (illustrated in FIGURE 6) extending most of the way therealong and terminating at a shoulder surface 21 (see FIG. 6) near the base leg.
  • Each side leg 16 has a series of fingers 22 extending inwardly from each side of the groove 20 thereof to provide additional support for the printed circuit board 24,
  • Each insulating body 12 and 14 of the connector is generally L shaped in configuration as indicated in FIG- URES 1 and 2.
  • the base leg 18 of each of the insulating bodies defines a central recess 26 extending along a major distance of the length thereof as shown in FIGURE 2 for one of the base legs.
  • a first series of uniformly spaced openings 28 extend along each base leg for about the length of the recesses 26 thereof, each of said openings extending fully through the thickness of the leg and further opening through the rear face of the leg as indicated at 30 in FIGURE 3 for instance.
  • a wall- 32 of insulating material is defined between the recess 26 and the inner faces of the openings 28.
  • a second series of q a openings 34 extend through the thickness of each base leg 18 near the front face of the leg, said openings being equal in number and width to the openings 38 and opposite thereto.
  • a shoulder 36 is defined in each of the openings 34 of the base legs.
  • a V a A body of resilient material 38 of a suitable rubber or synthetic for instance is received within the recess 26 of each base leg 18, said material extending along substantially the full length of the recess.
  • the outer face 48 of each body of resilient material is slightly beyond the inner face 19 of each base leg 18.
  • An electric'alcontact or prong 42 is received within each pair of opposite openings 28 and 34 of the series of openings hereinabove defined in each base leg 18.
  • Each contact 42 includes a hook portion 44, body portion 46 and tailportion 48.
  • the hook portion 44 of each contact is received in one of the openings 34 of one of the insulating bodies with the terminal portion of the hook 44 preferably engaging the shoulder 36 of the opening 34 to retain the contact within said opening.
  • the body 46 of each contact 42 extends out of its opening 34 and then along the outer face of one of the resilient bodies 38.
  • the body section' td of each contact then extends into one of the openings 28 of one of the insulating bodies 18 with the tail portion 48 of the contact extending 'rearwardly of the portion30 of the opening 28 of the insulating body.
  • the insulating bodies 12 and 14 are assembled by placing the base leg portionslS thereof in face-to-face, coextensive relation.
  • the base leg 18 of each of th insulating bodies is proyided with openings 50 and 52 (seeFIGURE 2) exte nding therethroug h.
  • the openings at each end of the base legs 18 are in registration with each other.
  • a clamping and mounting bracket 54 is positioned over the base legs, the bracket 54 being provided with openings therein which register with the openings 58 and 52' of each I of the base legs.
  • Bolts or the like are inserted through the openings in the bracket 54, the openings 58 and 52 of the base legs and also registering openings'in a metal support plate extending across the lower base leg 18, the bolts being fastened at the opposite ends against the support plate 56 by means of nuts (not shown), the base legs together with'their resilient bodies 38 and contacts being clampable against the interposed board 24 (as shown in FTGURE 1) into electrical engagement betweenthe contacts and conductive strips of the board, respectively, by the use of the members 54 and 56 and the screw and bolt units upon tightening of the latter.
  • the upstanding legs 58 of ,the bracket 54 maybe utilized for mounting the connector tov a supporting structure which may be a 'moth r circuit board within holes of which, extending through conductive strips thereof, the .tails of the contacts extend respectively, in electrical engagement with the strips'respectively.
  • FIGURE 6 illustrates a portion of the connector Without a circuit board positioned'therein. As indicated, the
  • each of the contacts 42 is held in spaced relation to the inner surface of the base leg 18 of the insulating body with which it isassociated by the body of resilient material 38 positioned within the base leg.
  • FIGURES 1 and 7 illustrate the connector with a printed circuit board fully inserted therein with the co planar transverse edges 24 (only one being indicated in FIGURE '7) of a pair of terminal notches or right angle cut off corners of'thefboard, one on each side'of the board (not shown) in endwise' abutting engagement with the aforesaid shoulders at the ends of the grooves 28, re-
  • The" conductive strips are provided on both surfaces of the circuit board 24.
  • FIGURE 2 is out of scale relative to the size and nurn-
  • the board 24 also, of course, is of a suitable dielectric material to prevent elec trical flow between adjacent circuit portions by transference through the board itself.
  • the connector is actually provided with a matingcontact 42 for each of the separate strips 68 of the printed circuit board considering both sides of the board although her of contacts.
  • the strips 68 on the surfaces of the board 24 are usually of the order of from one to a very few thousandths of an inch in thickness and that these strips are also normally or most often gold plated (at least over the contact area thereof) to a. thickness measured in millionths of an inch. Care must be observed in the use of the circuit boards in order to prevent abrasive wearing of the strips. It can readily be seen that even slight abrasive wear of the electrically con .ductive strips may result in an appreciable effect upon the electrical characteristics of the strip and thereby upon the effectiveness 'of the board in use.
  • the connector perrnits insertion and removal of the circuit board Without excessive friction or abrasive action upon the strips and contacts due to contact making pressure as by clamping or otherwise during said insertion and removal.
  • the desired or finally established electrical interconnection between the strips on'the circuit board and the contacts of the connector, respectively, is'had after the connector is positioned fully within the connector.
  • the desired lelectricalconnection is realized by clamping the base legs'l8 of the insulating bodies of the connector together with the resilient bodies 38 and contacts thereof against the interposed circuit board with its conductive strips. This clamping action is removed prior to with drawal of the board from the connector sothat the frictional or abrasive action may be minimized during removal.
  • The'board 24 is inserted into the connector by positioning the opposite side edge portions of said board within the open. ends of the grooves 28 defined within the side legs 16 of the insulating bodies. The board then is slidably moved along the groovesuntil it abutts against the surfaces 21 of the bodies 12 and 14 and rests fully within the. board receiving area defined-Within the connector. In the latter position the inner end portion of'the board will be positioned in the area defined between the facing surfaces of the base legs 18 of the insulating bodies together with their resilient bodies 38 and. contacts and laterally between the inwardly raised facing surfaces 25 of l the legs 16 beyond the grooves thereof.
  • the bodies of resilient material 38 are caused to resiliently yield, after any looseness or spaced between the strips 60, contacts, resilient-bodies, and base legs is taken up, with v the contacts at least tending to move farther within the base legs or otherwise shift relatively thereto against the action of the .resilient bodies.
  • the contacts move or shift individually against the resilient bodies as necessary to in turn individually accommodate the strips as the contacts are brought into clamping, good electrical contact making engagement with the strips. Yielding of the resilient bodies 38 therefore, permits individual adjustment or adaptation of the contacts to their respective circuit strips and also provides a resilient pressure therebetween for the establishment and maintenance of the desired good electrical engagement therebetween, while at the same time cushioning the clamping forces upon the strips.
  • the connector is constructed such that both sections or insulating bodies 12 and 14 thereof are identical in construction through rotated 180 relative to each other. In this manner manufacturing costs are minimized in that only one insulating body need be manufactured. Storage and supply overhead are also minimized in that different mating components for each connector need not be stored.
  • Pairs'of insulative bodies 12 and 14 may be assembled in a stack as illustrated in FIGURE 8 of the drawings.
  • a stack of five pairs generally designated 19 is shown.
  • the connector shown in this figure is able to receive five circuit boards 24, as illustrated.
  • the stacked pairs 10 are unitized by passing rods 62 through each of the openings in the base legs of the pairs 10 and through openings in the metal plate 64 at the end and four similar metal plates separating the pairs 10, nuts being threaded on the ends of the rods adjacent the plate 64.
  • the rods 62 also pass through a forward and thicker plate 66, a tensioning spring 72 and a front plate 68, nuts being threaded on the forward ends of the rods.
  • a threaded tensioning assembly member 70 is passed through a bore in the front portion of the plate 66 and within a slot therethrough, being secured therewithin by a snap ring received within an annular groove around the end portion of the member 70.
  • the tensioning spring 72 is disposed in curvilinear fashion between the spaced rods 62.
  • the middle pressed out section 74 of the rear half or leaf of the tensioning spring 72 is threadedly received on the member 70 while the spring 72 is loosely received on the rods 62 and abutts the end plate 68.
  • the tensioning spring 72 moves forwardly along the member 70 upon turning the latter by means of a screw driver received within a slot (not shown) in the front end of the member to load the spring 72 and thus provide for the clamping forces upon the stacked pairs 10 when the circuit boards 24 are fully Within the connector between the respective bodies 12 and 14 of the pairs It).
  • the clamping force is, of course, exerted through the member 70 and the engaged plate 66, ultimately against the back up plate 64 being held firm by the rods 62 against which the spring 72 pushes in the opposite direction through the plate 68 and front nuts.
  • the overall clamping means including the rods 62 and backing plate 64 is such as to be able to close up all looseness within the stacked connector and clamp even asingle board within one of the pairs 12 and 114 or any number of boards within the connector less than the total receivable number ofboards.
  • grooves in the side legs 16 of the insulative bodies 12 and 14 have been disclosed as being continuous with portions 22 extending inwardly therefrom along each side of each groove to add to the grooves, it should be clearly understood that the groove in each side leg may also be intermittent defined solely by portions like 22, for instance, of the side leg, either in staggered or in directly'opposite, paired relation to each other, extending inwardly from the unrecessed back or rest of the side leg.
  • Use of the words groove or grooves or the like in the appended claims is therefore intended to include or cover such intermittent or interdupted grooves as well as the continuous variety.
  • the recesses 26 could extend the entire lengths of the base legs 18 opening out to the opposite ends thereof.
  • a resilient body such as 38 in the disclosure, is in contact with an insulating body or a portion thereof as a face or as the back of a recess is intended to include any instance in which the resilient body is mounted on the insulating body or portion thereof by cement, adhesive, or similar unitizing of the two as well as where the resilient body is merely resting against the insulating body or portion thereof in abutting contact therewth uncemented or the like.
  • the clamping means need not necessarily be normally not functioning to urge or bring the insulative bodies 12 and 14 towards each other except when operated so as to effect this for the clamping action after insertion of the circuit board or boards but may normally urge the bodies 12 and 14 at least to some extent towards each other but which means can be caused not to so urge said bodies towards each other by a tool or otherwise at least while the board is or boards are moved between the base legs of said bodies 12 and 14 after which insertion the clamping means is freed or allowed to resume its normal base legs urging action which is then effective to clamp the board or boards between said base legs and carried resilient bodies 38 and contacts.
  • clamping means or the like are intended to include all structure that is necessary to effect the clamping of a pair or pairs of insulative bodies such as 12 and 14, for instance, together with their resilient bodies 38 and contacts, and inserted circuit board or boards together including other pairs of bodies such as 12 and 14 so far as one claimed pair of bodies such as 12 and 14, for instance, is concerned and also any separating transverse plates, for instance, in the case of stacked forms of connectors.
  • the spaced means receiving the opposite side edge portions of the circuit board prior to as well as after insertion of the board between the base legs 18 of the insulating bodies 12 and 14 are the groove defining side legs 16 of said bodies in the disclosed forms of the invention, such means do not necessarily have to be integral with what has been disclosed as the base legs of the insulating bodies.
  • the insulating bodies may consist largely or entirely of what has been disclosed at the base legs of the bodies with members generally similar to or the equivalent of disclosed side legs 16 but separated from the insulating bodies being independently supported or being secured to, or even formed integral with, where these means are metal, one of the clamp bars, for instance, as 54 in the drawing but modified for the purpose.
  • An electrical connector adapted to electrically connect a printed circuit componentvto associated. circuitry whereby sliding action upon the printed circuit strips of the component isrninimized, said connector comprising: a pair of insulating bodies each of said bodies defining a side leg and a base leg, the base leg of each body adapted to be assembled in mating face-to-facerelation with respect to each other, the mating face of which faces towards the other base leg along at least a substantial portion threof having a recess therein at least a substantial part of which is opposite at least a substantlal part of the recess in the other base, leg, each of the recesses having' a body of resilient material such as for example resilient rubber therein at least a substantial part of which each of said base legs having a recess therein, each of said recesses having .a body of resilient material therein, said side legs each defining a groove extend ing therealong, said grooves adapted to receive the
  • Anrelectrical edge connector adapted to electrically connect a printed circuit component to associated circuitry 7 the edges of the circuit component, said base legs ;each having electrical contacts therein, at least one portion of eachof the contacts adapted to extend over the mating face of the body of resilient material; and clamping means operatively associated with said-mating base legs .to elampsaidjbase legs together, where;
  • each of the resilient bodies being in contact with the back of the recess receiving the body at least in the course of the clamping of the circuit board for final desired electrical interconnection between the board and con nector and thereafter as long as' said interconnection remains made
  • said side legs each having a groove extending at least a substantial distance therealong, said side legs be-' ing at least towards opposite sides respectively of the .two base legs considered as a unit, said grooves being located to and suitable to receive the two opposite side edge portions of the circuit board, the two base leg and resilient body units carrying electrical contacts for engagement with said conductors respectively on the two faces of said board at least a board conductor engageable portion of each of which contacts extends over a portion of one of the resilient bodies, facing towards the other resilient body, and is so in engagement with such portion of the resilient bodyin the course of the clamping of the base legs, together withthe resilient bodies thereof and the contacts, against said board after the latter has been at least generally predeterminately interposed between the
  • the clamping means then being placed in such a condition as to in turn place said base legs 'together'with the resilient bodies and contacts thereof in a, V desired condition" of clamping the board therebetwee'n to establish desired final electrical engagement between said contacts and said conductors of the board respectively, sald bodies resiliently deformingfto'permit accommoda- 'tion of said conductors of the boardjbyesaid contacts respectively and resiliently urge the contacts into desired final electrical engagement with said conductors of the board respectively in the course of said clamping. 4.
  • An electrical connector for electrically connecting a ductors on.
  • the connector comprising afpa'ir of insulative bodies each having a side'leg and a base leg, the base 7 legs of said bodies facing'towards'each other at least along QB.
  • An electrical connector for electrically connecting a printed circuit board having a plurality of printed conductors on each of the two opposite faces thereof to conductor means within which connector the board is insertable with at most relatively low resistance to any sliding movement between the conductors of the board and the contacts of the connector, the connector comprising a pair of insulating bodies facing towards each other at least along a substantial portion of each, the side of each body which faces towards the other body along at least a substantial portion thereof having a recess therein atleast a substantial part of which is opposite at least a substantial part of the recess in the other body, each of the recesses having a body of resilient material such as for example resilient rubber therein at least a substantial part of which faces towards the other body of resilient material, the back of each of the re silient bodies being in contact with the back of the recess receiving the body at least in the course of the clamping of the circuit board for desired final electrical interconnection between the board and connector and thereafter as long as said final interconnection remains made, the two insulating body and
  • An electrical connector for electrically connecting a printed circuit board having a plurality of printed conductors on a face thereof to conductor means within which connector the board is insertable with at most relatively low resistance to any sliding movement between the conductors of the board and the contacts of the connector, the connector comprising a pair of insulative bodies facing towards each other at least along a substantial portion of each, the side of one of the bodies which faces towards the other body along at least a sub stantial portion of each, the side of one of the bodies,
  • said one insulative body and resilient body unit carrying electrical contacts for engagement with said conductors respectively of said board at least a board conductor engageable portion of each of which contacts extends over a portion of the resilient body, facing towards the other insulative body not'receiving said resilient body, and is so in en-' gagernent with such portion of the resilient body in the course of the clarnping of the insulative bodies, together with the resilient body of said one
  • the board is inserted into the connector by moving it within and along said grooves of said board receivable means until the board extends within the space between said insulative bodies together with the resilient body of said one of them and said contacts in at least a generally predetermined relation therebetween, at least the movement of the board between the insulative bodies together with the resilient body of 'said one of them and the contacts being carried out when the clamping means is not so functioning as to so keep the insulative bodies together with the resilient body'of'said one of them and said contacts at least close to each other as to prevent said movement of the board with no more than relatively low resistance to any sliding movement between the consliding movement between the conductors of the board and the contacts of the connector, the connector comprising a pair of insulating bodies facing towards each other at least along a substantial portion of each, the
  • the clamping means then being placed in such a condition as to in turn place said insulative bodies together with the resilient body of said one of them and said contacts in a desired condition of clamping the board therebetween to establish desired final electrical engagement between said contacts and said conductors. of the board respectively; said resilient body resiliently deforming to permit accommodation of said conductors of the board by said contacts respectively and resiliently urge the conside of each body which faces towards the other body along at least a substantial portion thereof having a recess therein at least a substantial part of which is opposite at least a substantial part of the recess in the other body, each of therecesses having a body of resilient material such as for example resilient rubber therein at least a substantial part of which faces towards the other body of resilient material, the back of each of the resilient bodies being in contact with the back of the recess receiving the body at least in the course of the clamping of the circuit board for desired final electrical interconnection between the board and connector and thereafter as long as said final interconnection remains made, the two insulating body and resilient body units carrying electrical
  • An electrical connector for electrically connecting a printed circuit board having a plurality of printed conductors on each of the two, opposite faces thereof to conductor means within which connector the board is insertable with at most relatively low resistance to any deforming to permit accommodation of said conductors of the board by said contacts respectively and resiliently urge the contacts into desired final electrical engagement with said conductors of the board respectively in the courseof said clamping.
  • An electrical connector for electrically connecting a printed circuit board having a plurality of printed conduc tors on a face thereof to conductor means within which connector the board is insertable with at most relatively low resistance to any sliding movement between the coni ductors of the board and the contacts of the connector, the connector comprising a pair of insulative bodies facing towards each other at least along a substantial portion of each, the side of one of the bodies which faces towards the other body along at least a substantial portion thereof having a recess therein at least a substantial part of which is opposite at least part of the other body, the recess having a body of resilient material such as for example resilient rubber therein at least a substantial part of which faces towards the insulative body not having said recess and body of resilient material, the back of the resilient body being in contact with the back of the recess at least in the course of the clamping of the circuit board for desired final electrical interconnection between the board and connector and thereafter as long as said final interconnection remains made, said one insulative body and resilient body unit carrying electrical contacts for engagement
  • An electrical connector for electrically connecting a printed circuit board having a plurality of printed conductors on each of the two opposite faces thereof to conduct-or means Within which connector the board is insertable with at most relativelylow resistance to any sliding movement between'the conductors of the board and the contacts of the connecton'the connector comprising a pair of insulating bodies each having a side leg and a base leg, the base legs of said bodies facing towards each other at least along a substantial portion of each, a body of resilient material such-as for example resilient rubber at t least loosely mounted on each base leg on the side thereof facing, along at least a substantial portion thereof, to: Wards the other base leg, said bodies of resilient material facing towards each other at least along a substantial portion of each, said side legs each having a groove extending at least a substantial distance therealong, said side legs being at least towards opposite sides respectively of the two base legs considered as a unit, said grooves being located to and suitable to receive the two opposite side edge portions of the circuit board, the two base leg and resilient body units
  • An electrical connector for electrically connecting a printed circuit board having a plurality of conductors on a face thereof to conductor means within which connector the board is insertable with at most relatively low resistance to any sliding movement between the conductors of the board and the contacts of the connector, the connector comprising a pair of insulative bodies each having a side leg and a base leg, the base legs of said bodies facing towards each other at least along a substantial portion of each, a body of resilient material such as for example resilient rubber at least loosely mounted on one of the base legs on the side thereof facing, along at least a substantial portion thereof, towards the other base leg, said' body of resilient material facing, at least along a substantial portion thereof, towards the base leg not having the body of resilient material, said side legs each having a groove extending at least a substantial distance therealong, said side legs being at least towards opposite sides respectively of the two base legs considered as a unit, said grooves being located to and suitable to receive thetwo opposite side edge portions of the circuit board, said one base leg and resilient body unit carrying electrical contacts for
  • 'Anelectric'al connector for electrically connecting a printed circuit'boardhaving a plurality of printed conductors on each of the twoopposite faces thereof to conductors means within which connector the board is insertable with at mostrelatively'low resistance to any sliding movement between the conductors of thetboard and .the contacts of the connector, the connector comprising a pair of insulating bodies facing towards each other at least along a substantial portion of each, a body of resilient material such as for example resilient rubber at least loosely mounted on each'insulating body on the side there of facing, along atleast 'a' substantial portion thereof, towards the other insulating body, each 'of said bodies of resilient material facing, at least along a substantial por- 7 tion thereof, towards the other body of resilient material, the two insulating body'and resilient body .units carryr ing electrical contacts for engagement with said conductors respectively on the two faces of said board at least a board conductor engageable portion of each of which contacts extends over a portion of one of the resilient bodies,
  • said resilient bodies resiliently deforming to permit accommodation of said conductors of the board by said contacts respectively and resiliently urge the contacts into desired final electrical engagement with said conductors of the board respectively in the course of said clamping.
  • An electrical connector for electrically connecting a printed circuit board having a plurality of printed conductors-on a face ithereofjto conductor means within which connector the board is insertable with at most relatively low resistance to any sliding movement between the conductors of the board and the contacts of the connector, the connector comprising a pair of insulative bodies facing towardseach other at least along asubstantial portion of each, a bodyof resilient material such a as for example resilient rubber at least loosely mounted on one of the insulative bodieson the side thereof facing, along at least a substantial portion thereof, towards againstsaidboardafter the latterhas been atleast gen- 7 erally predeterminatelyinterposed between the insulating I bodies and the'r esilient bodies thereof as to help cause at least some resilient deformation of the resilient body, a pair of spaced board receivable means each defining a grooveextending at least a substantial distance" therealong, said means and: grooves thereof being so located withrespect to the insulating bodies and constructed as to be .
  • said one insulative body and resilient body unit carrying electrical contacts for engagement with said conductors respectivelyof said board at 'leas ta board conductor engageable portion of each of which contacts extends over a portion 'of the resilient body, facing towards'theiother insulative bodyinot having said resilient body, and is so in engagement with such portion of'the resilient body in'the course'of the clamping of the'insulative bodies, together with the resilient body of said one ofthem and the contacts, against said board after the latter has been at least generally predeterminately interposed between the insulative bodies as to help cause at least some resilient deformation ofthe resilient body, a
  • pair of spaced board receivable means each defining a groove extending at least a substantial distance there-"r along, said'means and grooves thereof being so located with respect to the insulative bodies and constructed as to be able to receive the two opposite side edge portions a of said boardandallow the board to be inserted between said insulative bodies together with the resilient body of said oneof them and said contacts, and clamping means operatively associated with said insulative bodies effective to cl amp the same, togetherwith the resilient body 17 of said one of them and the contacts, and interposed board together into desired final electrical engagement between said contacts and said conductors of the board respectively after the board has been at least generally predeterminately placed between the insulative bodies together with the resilient body of said one of them and 'the contacts, whereby, for electrically interconnecting said board and connector, the board is inserted into the connector by moving it within and along said grooves of said board receivable means until the board extends within the space between said insulative bodies together with the resilient body of said
  • An electrical connector for electrically connecting a printed circuit board having a plurality of printed conductors on a face thereof to conductor means within which connector the board is insertable with at most relatively low resistance to any sliding movement between the conductors of the board and the contacts of the connector, the connector comprising a pair of insulative bodies facing towards each other at least along a substantial portion of each, a body of resilient material such as for eX- ample resilient rubber at least loosely mounted on one of the insulative bodies on the side thereof facing, along at least a substantial portion thereof, towards the other insulative body, said body of resilient material facing, at least along a substantial portion thereof, towards the insulative body not having the body of resilient material, said one insulative body and resilient body unit carrying electrical contacts for engagement with said conductors respectively of said board at least a board conductor engageable portion of each of which contacts extends over a portion of the resilient body, facing toward the other insulative body not having said resilient body, and is so in engagement with such portion of the resilient body in the course of the clamp

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US261967A 1963-03-01 1963-03-01 Electrical connector Expired - Lifetime US3202955A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1047487D GB1047487A (enrdf_load_stackoverflow) 1963-03-01
US261967A US3202955A (en) 1963-03-01 1963-03-01 Electrical connector

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336561A (en) * 1964-12-30 1967-08-15 Ibm Electrical connection means
US3693135A (en) * 1970-12-21 1972-09-19 James E Vavrick Printed circuit board socket and holding frame
US3704394A (en) * 1971-07-06 1972-11-28 Teradyne Inc Receptacle for printed circuit structures with bus bar mounting means
US3825878A (en) * 1973-09-10 1974-07-23 Motorola Inc Flexible flat cable system
US3887260A (en) * 1972-06-16 1975-06-03 Guiseppe Codrino Multiple coupling connector for electrical connection between flexible ribbon-like conductors and circular cross-section cables
US3924915A (en) * 1971-11-26 1975-12-09 Teledyne Inc Electrical connector
US4091440A (en) * 1976-01-29 1978-05-23 Cgee Alsthom S.A. Mechanical support system for printed circuit boards
US4368821A (en) * 1980-06-10 1983-01-18 Rose Elektrotechnik Gmbh & Co. Kg Arrangement for mounting printed circuit boards, partitions and the like in a housing
USD287006S (en) 1983-07-29 1986-12-02 Termiflex Corporation Housing for electrical components and the like
US4823952A (en) * 1983-07-29 1989-04-25 Termiflex Corporation Modular packaging system, particularly for electronics
US5160278A (en) * 1990-10-22 1992-11-03 Miles Inc. Reagent strip calibration system
US6638076B2 (en) 2001-02-14 2003-10-28 Donglei Wang Plug/socket assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858515A (en) * 1954-08-12 1958-10-28 Westinghouse Electric Corp Electrical connector with resilient gripping means
US2874363A (en) * 1953-09-15 1959-02-17 Merrill J Ainsworth Electrical connector with flexible contacts
US2881404A (en) * 1952-06-28 1959-04-07 Lawrence J Kamm Multiple electrical connector with yieldable contacts
US2994056A (en) * 1955-12-13 1961-07-25 Fox Benjamin Printed circuit board connector
US3037181A (en) * 1959-04-01 1962-05-29 Burroughs Corp Electrical connector for circuit board
US3038140A (en) * 1960-11-16 1962-06-05 Hughes Aircraft Co Electrical connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881404A (en) * 1952-06-28 1959-04-07 Lawrence J Kamm Multiple electrical connector with yieldable contacts
US2874363A (en) * 1953-09-15 1959-02-17 Merrill J Ainsworth Electrical connector with flexible contacts
US2858515A (en) * 1954-08-12 1958-10-28 Westinghouse Electric Corp Electrical connector with resilient gripping means
US2994056A (en) * 1955-12-13 1961-07-25 Fox Benjamin Printed circuit board connector
US3037181A (en) * 1959-04-01 1962-05-29 Burroughs Corp Electrical connector for circuit board
US3038140A (en) * 1960-11-16 1962-06-05 Hughes Aircraft Co Electrical connector

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336561A (en) * 1964-12-30 1967-08-15 Ibm Electrical connection means
US3693135A (en) * 1970-12-21 1972-09-19 James E Vavrick Printed circuit board socket and holding frame
US3704394A (en) * 1971-07-06 1972-11-28 Teradyne Inc Receptacle for printed circuit structures with bus bar mounting means
US3924915A (en) * 1971-11-26 1975-12-09 Teledyne Inc Electrical connector
US3887260A (en) * 1972-06-16 1975-06-03 Guiseppe Codrino Multiple coupling connector for electrical connection between flexible ribbon-like conductors and circular cross-section cables
US3825878A (en) * 1973-09-10 1974-07-23 Motorola Inc Flexible flat cable system
US4091440A (en) * 1976-01-29 1978-05-23 Cgee Alsthom S.A. Mechanical support system for printed circuit boards
US4368821A (en) * 1980-06-10 1983-01-18 Rose Elektrotechnik Gmbh & Co. Kg Arrangement for mounting printed circuit boards, partitions and the like in a housing
USD287006S (en) 1983-07-29 1986-12-02 Termiflex Corporation Housing for electrical components and the like
US4823952A (en) * 1983-07-29 1989-04-25 Termiflex Corporation Modular packaging system, particularly for electronics
US5160278A (en) * 1990-10-22 1992-11-03 Miles Inc. Reagent strip calibration system
US6638076B2 (en) 2001-02-14 2003-10-28 Donglei Wang Plug/socket assembly

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