FR2585195A1 - TECHNIQUE AND APPARATUS FOR SOLDERLESS CONNECTOR - Google Patents

Abstract

A TECHNIQUE AND AN APPARATUS FOR A SEAMLESS CONNECTOR ARE PROPOSED, ALLOWING TO ESTABLISH AN ELECTRICAL CONTACT BETWEEN A FLEXIBLE CIRCUIT AND ANOTHER CIRCUIT DEVICE BY USING A RELATIVE MOVEMENT BETWEEN THEM IN ORDER TO REMOVE OR REMOVE ALL THE DEBRIS OR OTHER FOREIGN MATERIALS PRESENTED ON THE TERMINALS AND WHICH COULD HAVE A HARMFUL EFFECT ON ELECTRICAL CONTACT. IN A FIRST EMBODIMENT SPECIFIC TO THE PRESENT INVENTION, THE RELATIVE MOVEMENT BETWEEN THE CORRESPONDING CIRCUIT DEVICES IS PROVIDED BY MALE AND FEMALE HOUSINGS 12, 14 INCLUDING A CAM-EFFECT DEVICE. THE CAM EFFECT DEVICE EFFECTIVELY REMOVES ALL FOREIGN MATERIALS OR DEBRIS LOCATED ON THE CORRESPONDING TERMINAL DEVICES. IN AN ALTERNATIVE EMBODIMENT OF THE PRESENT INVENTION, MECHANICAL SPRINGS 84, 86 ARE USED TO PROVIDE LATERAL MOVEMENT TO THE CIRCUIT DEVICES, SO AS TO REMOVE DIRT, DUST OR DEBRIS. PREFERENCE, A DEVICE 130, 132 IS PROVIDED FOR PERFORMING A PRELIMINARY REMOVAL, SUCH AS, FOR EXAMPLE, A CLEANING PAD, IN ORDER TO FACILITATE THE REMOVAL OF DEBRIS.

Description

"1 Technique and apparatus for solderless connector" The present

  The invention relates to a method and an apparatus for interconnecting electrical circuit elements. More particularly, the invention relates to a connector.

  new and improved seamless and method for using

  ser this to establish an electrical contact between a

  flexible circuit and another circuit device, in use

  reading a relative movement between them, in order to tear off

  all debris or other foreign matter (e.g.

  (corrosive films) which can have a harmful effect

ble on the electrical contact.

  Conventional processes for interconnecting components

  electrical or electronic circuits include the use

  creation of separate connector and / or terminal structures

  nes to be welded on the components, to the conductors of which is applied a current coming from or towards the components. Although generally suitable for

  envisaged objectives, the interconnection of electrical components

  triques by means of separate connector structures pre-

  there are certain drawbacks and shortcomings, including high manufacturing and purchasing costs, as well as an increase in the cost and labor required for assembly and connection. Similarly, the terminals to be welded are undesirable when the substrate which supports a clear terminal must be able to withstand relatively high temperatures, without consequences.

  disadvantageous. On the other hand, the connections to be welded can-

  wind require a lot of manpower and therefore be covered

  from this point of view. Another difficulty relating to

  soldered connections is a relative difficulty A disconnected

  ter a terminal welded during repairs and in progress

Manufacturing.

  1 In some applications, it has been found desirable to replace the use of separate connection structures and / or soldering as the technique to be used for making connections with flexible or other circuits. For these applications, the required electrical contact can be created by mechanical compression of the terminal portions of the circuit against the terminal pads on the connector, device, or other circuit. These pressure connections

  specific to the prior art are generally

  with a massive, elastic pressure applicator

  some element made of elastomer material which is put in compression in order to press at least one of the components

  to electrically interconnect to the other component, a-

  end of keeping the terminal parts thereof in con-

  electric tact. A seamless connection system of this

  genre has been described in US patent 4,468,074.

  US patent 4,468,074 describes an apparatus where the

  contact ties of a first set of conductive elements are pressed against the corresponding contacts of a second

  set of conductive elements by a press applicator

  sion comprising an elastic plastic material with cell

  open, to establish and maintain an electrical connection

  stick between them. The use of elastic material

  open cell like this allows multiple conduc-

  Bare electric torques arranged close to each other, or starting from a pair of substrates, can be aligned and then pressed effectively against each other, the electrical connections being ensured by a necessary contact pressure which is applied to the substrates. The seamless connector specific to patent 4,468,074 can be used to interconnect flexible circuits, for

  connect flexible circuits to circuits or sub-

  rigid trats, to establish connections between the conduits

  tors starting from an integrated circuit in a circuit device

  1 cooked on a flexible or rigid circuit board, and for

still other applications.

  It is well known that devices with an electrical connector

  than conventional, such as those of the male / female type, use a

  reciprocal or relative sliding movement during the o

  connection peration. This relative movement between the con-

  matching male and female nectors is desirable, given

  that it makes it possible to uproot all debris or foreign matter

  res connectors. This debris could, in fact, adversely affect the quality of the electrical contact. Although suitable for the envisaged objectives, the seamless connectors specific to patent 4,468,074 do not necessarily ensure the relative movement between the flexible circuit and other circuit devices which must be interconnected.

  results from the fact that the circuit devices are interconnected

  nected when a device is pushed in and placed on another device, this prevents any lateral movement which

  could remove unwanted foreign matter

  rables. Therefore, dirt, debris and all

  foreign matter can remain present on the different

  electrical contact after interconnection, this can

  before harming the quality of contacts.

  Another area of concern related to connectors without

  "non-tearing" type welding described in the US patent

  ricain 4.468.074 is the air deterioration of the circuits before assembly. As a result of exposure to normal corrosive gas contents in the air, metallic contact surfaces may corrode, with decrease

  electrical characteristics after assembly. As-

  mentioned above, a conventional method for improving the characteristics of the connectors consists in ensuring a sliding movement between the contacts when they

  are assembled. This sliding action destroys the

  1 non-conductive corrosion blanks that may have formed and

  therefore improves the electrical characteristics of the connector.

  The difficulties mentioned above, and still others specific to the prior art, are overcome or alleviated by means of the seamless connection technique and the apparatus specific to the present invention. In accordance with

  the present invention, there is provided a connector without sou-

  hard to establish electrical contact between a circuit

  baked flexible and another circuit device using

  a relative movement between them to tear off or eliminate

  remove any debris or other foreign material from the

  terminals and may adversely affect the quality of the electrical contact.

  In a first embodiment of the present invention,

  the relative movement between the circuit devices respec-

  This is ensured by male and female housings in which a cam device is incorporated. This cam device can effectively remove any foreign matter or debris located on the corresponding terminal devices. In one

  Another embodiment of the present invention is used

  mechanical springs to give lateral movement

  ral to the circuit device, so as to tear off the dirty-

tees, dust or debris.

  Preferably, a pre-lifting device, that is to say a cleaning pad, is provided in the case of the present

  invention, to facilitate removal of debris.

  The advantages mentioned above and others,

  pres to the present invention, will appear and be understood by all those skilled in the art on examining the

  detailed description below and of the figures, o

  similar elements are numbered similarly in j5 the various figures, which respectively represent: 1 Figure 1, a cross-sectional elevation view of a solder connector according to the prior art; FIG. 2, a perspective view of a solderless connector before connection and in accordance with the present invention; Figure 3 is a cross-sectional elevation view of the solderless connector of Figure 2 after connection; 0 Figure 4, an exploded perspective view of another mode of

  realization of a seamless conductor

  form to the present invention; Figure 5 is an elevational view, partially in cross section, of the seamless connector of Figure 4; Figure 6, a perspective view, partially broken away

  of yet another embodiment of a

  seamless nector specific to this in-

  Figure 7, Figure 8, Figure 9, Figure 10 Figure 11 vention; a cross-sectional elevation view of the seamless connector of FIG. 6, before connection; a cross-sectional elevation view of the seamless connector of Figure 6 after connection; a cross-sectional elevation view of yet another embodiment of the solderless connector according to the present invention a cross-sectional elevation view of a first embodiment of an element

  pre-uprooting in accordance with this invention

  tion; and a cross-sectional elevation view of a second embodiment of an element

  pre-uprooting in accordance with this invention

  tion. L 1 If we refer first to Figure 1, we see a seamless connector according to the prior art and generally designated by 10. The seamless connector has a clamping frame 12, which is designed to pinch a flexible circuit 14, comprising a substrate 16 having a conductive contact area 18 thereon, with a protective covering film 20, disposed on

  the conductive contact zone 18, against a flexible circuit

  ble 22 which comprises, in a similar manner, a substrate 24 comprising a conductive contact zone 26, to which a protective covering film 28 is applied

  on the conductive contact area 26. The clamping frame

  ge 12 ensures effective electrical contact between the two

  flexible circuit layers 14 and 22, as a result of the con-

  drawstring transmitted by an elastic pad 29 of material e-

the lastomer.

  Therefore, the mechanical clamping device 12 hand-

  maintains a certain minimum contact pressure between the exposed terminal portions 30 and 32 of the conductive contacts 18 and 26 respectively by means of the elastomeric element

  28, in order to make an electrical connection between them.

  Preferably, at least one alignment upright designated by 34 is provided, making it possible to ensure correct alignment.

  between the conductive contacts 18 and 26 of the flexible circuits

corresponding cores 14 and 22.

  Although it is suitable for the envisaged objectives, the

  seamless nector specific to the prior art and re-

  shown in Figure 1 does not provide movement

  relative between the pair of flexible circuits when the par-

  exposed terminals 30 and 32 are brought into electrical contact

  stick. As already mentioned above, this lack of movement

  relative sliding or tearing present certainly

Z585195

  1 few drawbacks. Thus, for example, debris or any other foreign matter present on the part of

  terminal connectors will remain there even after interconnection

  electric xion, this having a disadvantageous effect on the reliability of said connection. On the other hand, the corrosion films which may have formed on the corresponding terminal parts 30 and 32 will remain on the surfaces.

  terminal in question, even after their electrical interconnection

  that, this having a detrimental effect on the quality of said

connection.

  The disadvantages mentioned above and specific to the connection

  solderless according to the prior art and re-

  shown in Figure 1. are overcome or mitigated by

  the technique of seamless interconnection of flexible circuits

  xibles according to the present invention. If we now examine Figures 2 and 3, we see a first mode of

  realization of a solderless connector specific to the present

  The invention is generally designated by 10. The seamless connector 10 comprises a female housing 12, which is designed to receive a male insert 14 by ramps 16 and 18 located on the housing 12. The male insert 14 comprises a

  flexible circuit 20 having electrical contacts 21

  due to the terminal parts 23 and an elastic pad made of elastomeric material 22. The flexible circuit 20 is wound

  around insert 14 and shoe 22, as shown in Figure

  gure 2. It will be understood that the male insert 14 is made up

  rigid material, such as suitable plastic

  ée. The flexible circuit 20 is fixed to the male insert 14 by

  the nesting slot 24 and / or an appropriate adhesive. Linen-

  serves male 14 also includes a guide ramp 26 on an upper surface 28 thereof and a shoulder 30

  on a lower surface 32 thereof. The upper surface

  28 of the insert 154 also comprises a pawl 29.

  1 The female housing 12 comprises a rigid base 34, parts

  lateral kings 36 starting from it with extensions

  cantilever 38 which define the ramps 16 and 18 res-

  pectively. The base 34 of the housing 12 comprises a flexible circuit 40 having electrical contacts 42 leading to

  part of terminal 44 thereof.

  overhang 38 each have a ramp 46 which is designed

  to come into contact with the ramp 26 of the male insert 14.

  The ramps 46 have a pawl 48, which corresponds to the

  pawl 29 of the insert 14. Finally, the female housing 12

carries stops 50.

  During operation, the male insert 14 is inserted into

  the female housing 12 by the corresponding ramps 16-18.

  When a male insert 14 is inserted, the ramps 26 come into contact with the ramps 46 causing a cam effect which has

  as a result of exerting pressure on the elastomer pad

  re 22 and create electrical contact between the parts

  terminals 44 of the flexible circuit 40 and the terminal parts

  nes 23 of the flexible circuit 20. At a preselected point, the stops 50 of the female housing 12 will abut against the shoulders 30 of the insert 14, thereby preventing the insert 14 from being able to penetrate further. Simultaneously, the pawls 29 and 48 will lock to each other, this preventing any other relative movement between the circuits

flexible 20 and 40.

  It will be understood that, during the insertion of the mixed insert 14 into the female housing 12 and the resulting cam effect, the corresponding terminal parts 23 and 44 will be subjected to a lateral or relative movement between those -this. This relative movement will tear off

  dust, dirt, dandruff or other debris

  foreign breakage, thus creating an electrical connection ef-

between these terminals.

  1 It will be understood that, although FIGS. 2 and 3 relate to

  to an embodiment using an elastomer element on the

  serves as male 14, an elastomer element could just as easily be placed on the female housing 12, or alternatively both on the female housing 12 and on the insert 14. It will also be understood that, although the female housing 12 shown has a other flexible circuit, the housing 12 could

  be just as well designed to hold a circlet

  baked rigid printed or insulated electronic component.

  If we now examine Figures 4 and 5, we see that another embodiment of the present invention is designed to create an electrical connection on either side of a printed circuit board, generally designated by 52 The seamless connector 52 has a structural housing and a bevel structure, which is mechanically locked.

  as in Figure 4, in a preferred embodiment.

  In FIGS. 4 and 5, the structural housing 54, comprising a

  orifice in communication with a cavity 55, is provided with a

  do pair of cam devices that are similar to the

  cam structure 46 of the female housing 12 of FIG. 2.

  Consequently, a pair of flexible circuits 56 and 56 'are wound respectively around the upper and lower rigid structures 58, 58', so as to define

  strip parts 57 and 57 'with pads 60 and 60' elasticated

  only suitable, made of elastomeric material. The structures ri-

  gides or the molded parts 58 and 58 'are in turn provided with inclined surfaces 62 and 62' (similar to the ramps 46 in Figure 2). The bevel structure 55 is provided

  a set of guide surfaces 66, 66 ', which serve to receive

  see and correctly orient the rigid printed circuit board 68 and the locking pawls 64 and 64 ', in order to hold the printed circuit board 68. The printed circuit board 68, comprising conductive devices 70 and 70', has a beveled edge 72. It will be understood that 1 the beveled edge 72 of the circuit board 68 is somewhat

  not very analogous to the male insert 14 in FIG. 2. Therefore

  quent, when the printed circuit board 68 is inserted between the guide surfaces 66, 66 ', the chamfered edge 72, which is opposite to the inclined surfaces 62, 62' of the structural housing 54 when the elastomeric elements 60,60 '' are moved, while a pressure is thus exerted on the corresponding electrical terminals by creating a contact

  electric between terminals 57, 57 'and 70, 70' respectively-

  is lying. As in the embodiment of FIG. 1, the printed circuit board 68 will be inserted in the bevel housing, then in the structural housing 54, until the

  locking pawls 64, 64 'come into contact with the

  65 steps or steps of the circuit board 68.

  It will be understood that, during the insertion of the plate to

  rigid circuit 68 in the structural housing 54, it

  gives a cam effect between the chamfered edge 72 and the

  inclined surfaces 62, 62 '. This results in a movement re-

  lative between the corresponding electrical terminals, which has the effect of removing all dirt, dandruff or other unwanted foreign debris, thereby creating between

  these terminals an efficient electrical connection.

  If we now look at Figures 6-8, we see another

  still another embodiment of the present invention, which uses the tearing effect of the contacts of a connector

  seamless. In Figures 6-8, a pair of circlets

  baked rigid printed 74 and 78, oriented at right angles to each other, are shown with interconnection

  by a solderless connector, generally designated by 78.

  The solderless connector 78 comprises a pair of rigid elements 80 and 82, interconnected by a pair of springs

  with blades 84 and 86. A flexible circuit 88 interconnects electro

  trically the rigid elements 80 and 82, while the 1 guide pins 89 mechanically interconnect the rigid elements. Each of the rigid elements 80 and

  82 has a structure which is somewhat analogous to the struc-

  ture of the insert 14 of Figure 2, in that it comprises a rigid part, generally made of plastic, comprising a

  elastomer shoe 90 with a flexible circuit 88 wound up

  around the elastomer shoe 90 and the rigid part, so that the electrical contacts are located face to face with the corresponding contacts of each of the two plates to

  circuit 74 and 76. Consequently, when each of the plates

  that circuit 74 and 76 abuts against the rigid element

  corresponding 80, 82, the pad of elastomeric material exer-

  this a pressure and creates an effective electrical contact in-

  be the corresponding contacts of the flexible circuit 88 and of each of the circuit plates 74 and 76. As can be seen in FIG. 6, the guide pin 89 may include an elbow at 900 and have a threaded end 92, capable of receiving

  the nut 94 and fix the rigid circuit plate 74 to the element

rigid 80.

  If we now examine Figure 7, representing the function

  operation of a seamless connector 78, it can be seen that the upper rigid element 80 is pressed down into

  the direction indicated by arrow 91, so that the

  blade spells 84 and 86 are energized and distorted.

  As a result, the lower rigid element 82 moves-

  ra in lateral direction, as indicated by arrow 93, causing the interconnection of the corresponding contacts

  of the flexible circuit 88 and of the rigid circuit plates 76.

  It will be understood that when a force is exerted downwards

  on the rigid element 80, the leaf springs 84 and 86 pro-

  then evoke a sliding effect and a movement

  latif between the respective contacts of the flexible circuit 88

  and from circuit board 76, with tearing off of the push-button

  dirt, dirt and other foreign debris. Simul-

  1 temporarily, guide pin 89 will line up with the ori-

  corresponding parts 98 in the circuit board 76, as shown in FIG. 8 (it should be noted that the rigid element 82 is located between the guide pins 89, as shown in FIG. 6). At this time, a cam 100, or any other tightening device such as a nut, can come into action to keep the leaf springs under tension

  and prevent any further displacement of the connector without

  lasts 78. It will be understood that, when a force is exerted

  on the rigid element 82, the elastomeric pad 90 thereof

  this will exert pressure on the flexible circuit 98, this causing effective electrical contact between the flexible circuit 88 and the contacts located on the circuit plate 76. In FIG. 9 is represented yet another embodiment of the present invention, o the tear-off effect between the electrical contacts is generally designated

  par 104. The solderless connector 104 comprises a structure

  similar to. solderless connector described above in Figures 68, and has a lower rigid element

  106 and an upper rigid element 108, which are interconnected

  electrically connected by a flexible circuit 110. Like the solderless connector 78, the solderless connector

  solder 104 is shown while ensuring interconnection

  connection between a pair of rigid circuit plates 112 and 114, each being perpendicular to the other. However, unlike the sliding mechanism controlled by a

  leaf spring shown in Figures 6-8, the mode of re-

  Figure 9 uses a sliding mechanism.

  ment controlled by a conventional cam and designated by 116.

  So therefore, when the cam 116 rotates in the direction

  indicated by the arrow, the lower rigid element 106 slides

  will be along the rigid circuit plate 104, creating a tearing effect between the corresponding contacts 2585i95 1 of the flexible circuit 110 and the circuit plate 114. At a preselected point, the guide pin 118 will engage in the orifices 120 and 122 of the lower rigid element 106 and of the circuit board 104 respectively, this preventing any other displacement of the connector 104. At this time, the pin

  guide 118 can be locked in place by any device

  suitable locking device, such as that shown in 124.

  As indicated for the embodiment of FIGS. 6-8, each rigid element 106, 108 comprises an elastomeric pad with the flexible circuit 110 wound around it and the

  guide pin 118 exerts sufficient force on the

  elastomeric tin to create effective electrical contact

  be the corresponding terminals of flexible circuit 110 and the

  two rigid circuit boards 112 and 114.

* It is understood that, although the connectors without sou-

  lasts 78 and 104 of Figures 6 and 9 have been shown

  while interconnecting a pair of boards

  that rigid circuits perpendicular to each other, the solderless connectors can also be used to interconnect a flexible circuit to another circuit

  flexible, another rigid circuit board, oriented

  to a different angle or an electronic component, or

  another pair of perpendicular circuit boards, such as

the ones shown here.

  In a preferred embodiment of the present invention

  separate tear-out elements, i.e.

  cleaning pads, are provided on the connector bodies

  to ensure an initial or preliminary removal

  foreign debris mine. A separate pull-out element

  adorned with this kind is shown in Figure 10, where it is

  mounted on the 10 'solderless connector, where it is

  killed cleaning pads 130 and 132. The seamless connector 10 ′ in FIG. 10 is essentially identical 1 to the seamless connector 10 in FIG. 2, except for

  the addition of at least one cleaning pad to the edge of the guide

  dage of each connector body, which has the effect of rear

  initially expensive any debris or dirt and, especially, relatively large dirt. Preferably, a separate cleaning element is provided for cleaning

  first of all the two contact sets to be interconnected

  nected. Such a tear-off element can present any

  suitable arrangement, such as tear-out elements

  rectangular 130 and 132 of Figure 10, each comprising

  bearing an oblique guide edge 134 and 136.

  In FIG. 11, another embodiment of a device

  tif performing a pr6-tearing in a solderless connector is also shown. In Figure 11, we see

  a classic solderless connector, comprising a provision

  rigid clamping device 138, interconnected by a pair of

  bolts or any other connection device 140, and

  carrying between them an elastic pad of elastomeric material

  re 142, a flexible circuit 144 having electric circuits

  ques 146 and a rigid printed circuit board 148,

  carrying electrical circuits 150. In this embodiment

  sation, a cleaning pad 152 is inserted and driven during the connection operation, that is to say when a

  force is exerted by the elastomer shoe 142. In this way

  Lastly, it provides a pre-tearing action to remove all unwanted debris or other foreign matter. Any suitable device can be used to insert and remove the cleaning pad 152, including

manual or mechanical devices.

  In accordance with the present invention, various embodiments of solderless connectors have been described,

  with the use of devices allowing the creation of a

  relative bearing between the corresponding contact surfaces

  1 tes to remove particles or dandruff from the surfaces

  these contact. Contacts of this kind which have been previously torn off are especially desirable under conditions which are encountered in the use of computers, where paper dust can interfere with electrical contacts. Cleaning the contacts by pulling out, with

  mutual contact as described above, is also suitable

  very good for applications with the connector

  seamless of the type described in US Patent 4,468.

  074. The present invention therefore provides an electrical contact.

  efficient between a flexible circuit and another flexible circuit, a rigid circuit plate or a

electric circuit.

  According to the present invention, the material which

  nit the elastic pad made of elastomeric material 22 of the figures

  res 2 and 3, 60 and 60 'of figure 5, 90 of figure 6, 22' of figure 10 and 142 of figure 11 is made up,

  preferably a visco-elastic polymer with a cell or

  green and, in the preferred embodiment, a soft

  polyurethane. Particularly interesting results-

  health benefits were obtained using a urea formulation

  thane comprising a mixed polyester / polyether composition.

  An open cell material suitable for practicing the present invention is FCD 2200, sold by Rogers Corporation. This material is characterized by a

  bending under compression in the range of 0.34.

  PA at 3.4. 10 PA for 25% compression. An elastic material which can be used for the present invention

  is preferably characterized by a compressibility

  dual less than 5%. The residual compressibility is controlled in accordance with ASTM D-1564 o a 2 inch side and 1 inch thick pile, made up

  of material plates (plates approximately 0.025 mm) is com-

  awarded 50% up to i inch thick, the material

  1 prize being subjected, for 22 hours, to a temperature of "C, the compression then being removed and the thickness measured. The residual compressibility of the FCD 2200 material after 5 hours of stay in the steam autoclave before carrying out the The ASTM D-1564 test is less than 10%.

Claims (1)

1 CLAIMS 1. Solderless connector characterized in that a mechanical device exerts a force on an elastomeric material element to create electrical contact between the terminal parts of circuit devices, at least one of said devices being a flexible circuit device, the improvement comprising a device for creating a cam effect on said element made of elastomeric material, while said terminal parts of circuit devices undergo a relative movement during their interconnection electric. 2. A solderless connector according to claim 1, characterized in that said device for creating a cam effect comprises: a female housing (12), comprising an orifice; a male insert (14) which is adapted to be inserted into said female housing (12); and said female housing and said male insert having devices cooperating with each other to create said cam effect. - 3. A solderless connector according to claim 2, characterized in that said devices cooperating to create the cam effect comprise: a ramp (26) along the guide edge of said male insert (14) and a ramp corresponding (46) along the guide edge of said female housing (12); said insert ramp (26) being designed to come into contact with said housing ramp (46) when said circuit devices are electrically connected under the resulting cam effect. 1 4. A solderless connector according to claim 2, comprising devices (29, 48) for locking said male insert (14) and said female insert (12) together. 5. A solderless connector according to claim 3, comprising a device (50) for positioning said male insert (14) and said female housing (12) in a preselected location, after insertion of said male insert (14) in said female housing (12). 6. A solderless connector according to claim 2, characterized in that said elastomeric element (22) is disposed on said male insert (14) or on said female housing (12), or both on said male insert (14) and on said female housing (12). 7. A solderless connector according to claim 2, charac- terized in that said flexible circuit device (20) is wound around said male insert (14). 8. A solderless connector according to claim 1, characterized in that said device for creating a cam effect comprises: a housing (54) having an orifice, said housing having a cavity (55) which is in communication with the- said orifice, said housing comprising a device for receiving a rigid circuit device (68); at least one flexible circuit device (56) disposed in said housing cavity (55); an elastomeric member (60) between said flexible circuit device (56) and said housing (54); and said housing opening having means for creating said cam effect. 1 9. A solderless connector according to claim 8, characterized in that said rigid circuit device (68) has terminals (70, 70 ') on the opposite surfaces thereof and comprising: at least one device for flexible circuit (56, 56 ') arranged on the opposite surfaces of said housing cavity (55); an element of elastomeric material (60, 60 ') between each of said flexible circuit devices (56, 56') and said housing (54); and said housing opening having devices for creating said cam effect. 10. A solderless connector according to claim 8, characterized in that said device for creating a cam effect comprises an inclined surface (62) along the guide edge of said housing orifice and associated with a part of said device awith flexible circuit (56), the rigid circuit device (68) being designed to come into contact with said inclined surface of the housing (62), while said circuit devices (56,68) are connected electrically under the resulting cam effect. 11. A solderless connector according to claim 9, characterized in that said device for creating the cam effect comprises a pair of inclined surfaces opposite one another (62, 62 ') along the edges of guiding said housing orifice, each of the inclined surfaces (62, 62 ') being associated with at least part of one of said flexible circuit devices (56, 56'), the rigid circuit device (68 ) being designed to come into contact with said inclined surfaces of the housing (62, 62 '), said circuit devices (56, 56', 68) being electrically connected under the resulting cam effect. 1 12. A solderless connector according to claims 8 or 9, characterized in that the rigid circuit device (68) has a chamfered guide edge (72). 13. A solderless connector according to claim 8 or 9, comprising a device (66) for receiving and orienting the rigid circuit device in said housing orifice. 14. A solderless connector according to claim 8 or 9, comprising a device for locking the rigid circuit device (68) in said cavity of the housing. 15. A solderless connector according to claim 1, characterized in that said device for creating a cam action comprises: first and second rigid elements (80, 82), said rigid elements (80, 82) being mechanically interconnected by at least one spring and being electrically interconnected by an interconnection device for flexible circuit (88), each of said first and second rigid elements (80, 82) being designed to be connected to the first and second corresponding rigid or flexible circuit devices; an elastomeric material pad (90), disposed between each of said rigid elements (80, 82) and said flexible circuit interconnection device (88); and a force being applied to said first rigid element (80) and transmitted to said spring, causing a lateral movement between said flexible circuit interconnection device (88) on said second rigid element (82), and the flexible or rigid circuit device being designed to be connected to that -this. 16. A solderless connector according to claim 15, charac- terized in that said spring comprises at least one leaf spring (84, 86). 17. A solderless connector according to claim 15, characterized in that said first and second rigid elements are perpendicular to each other. 18. A solderless connector according to claim 15, characterized in that said first and second rigid elements perpendicular to one another (80, 82) are designed to be connected to the first and second rigid circuit devices. perpendicular to each other (74, 76). 19. A solderless connector according to claim 15, comprising a device (89) for aligning and blocking said first and second rigid elements (80, 82) after the connection between said first and second circuit devices (74, 76 ). 20. A solderless connector according to claim 1, characterized in that the device for creating a cam effect comprises: first and second rigid elements (106, 108), said rigid elements (106, 108) being mechanically interconnected by a sliding device (116) controlled by cam and being electrically interconnected by a flexible circuit interconnection device (110), each of said first and second rigid elements (106, 108) being designed to be connected to the first or second rigid or flexible circuit device (112, 114); a pad of elastomeric material being disposed between each of said rigid elements (106, 108) and said flexible circuit interconnection device (110); and the action of said sliding device (116) controlled by cam causing a lateral movement between the interconnection device with flexible circuit (110) and one of said rigid elements and the device with rigid circuit or flexible being designed to be connected thereto. 21. A solderless connector according to claim 20, characterized in that said first and second rigid elements (106, 108) are perpendicular to each other. 22. A solderless connector according to claim 20, characterized in that the first and second rigid elements perpendicular to one another (106, 108) are designed to be connected to the first and second perpendicular rigid circuit devices l to one another (112,114). 23. The solderless connector as claimed in claim 20, comprising a device (12) for aligning and blocking said first and second rigid elements (106, 108) after the connection between the first and second circuit devices (112, 114 ). 24. The solderless connector as claimed in claim 1, comprising at least one separate tearing element (130, 132) used in combination with said device creating a cam effect and giving rise to a preliminary tearing. 25. A solderless connector according to claim 24, characterized in that said tear-off element comprises a pad, said pad being fixed to said device creating a cam effect. 26. The solderless connector as claimed in claim 24, characterized in that said tearing element comprises   1 a skate, said skate being independent of said arrangement   tif creating a cam effect, while said pad is   inserted and removed during the electrical connection in-   be said circuit devices which must be con- nected.