ELASTQMERIC CONNECTOR TECHNICAL FIELD The present invention relates to an elastomeric, elastomeric, electrically deformable electrical connector having electrically conductive elements extending parallel between the opposite ends of said conductor. The invention also relates to the use of the elastomeric connector for assembling and electrically connecting a piece of radio communication equipment to an electrical circuit. BACKGROUND OF THE INVENTION Radio communication devices such as mobile telephones always include at least one microphone unit and a listening pod or a loudspeaker. The assembly of a microphone requires, for example, that the following demands be met: vibrations, scratches and noise that enters through the plastic cover of a mobile phone must be absorbed; the speech voice that enters through the loudspeaker cover, which is mounted on the same cover, also needs to be absorbed in order to avoid effects of such an electrical connection needs to be articulated between the microphone and the printed circuit board; multiplex access noise in time sharing should be suppressed; Both a circulation and resistance to production and a favorable efficiency with respect to cost must be achieved. Nowadays, the most common way to connect a microphone is to weld two wires between the microphone and the printed circuit board carrying the amplifier. Subsequently, the microphone is placed in a plastic package, which has the capacity to absorb the disturbances mentioned above. However, welding has the disadvantage of being too difficult to automate and that, in this case, it needs to be done by hand. Consequently, the production rate decreases and unwanted costs increase. There is also the risk of inadvertently joining the cables to each other. In order to facilitate their welding, the wires must be sufficiently long. However, this can cause problems in the final assembly, since there is a risk that too long a wire is pressed between the mechanical parts, thereby causing the lead wires to cut or shorten to an undesirable signal, for example Earth. Another method for connecting a microphone results when welding the end of a fle film part: < to the microphone, while the other end is disconnected or pressed into the connector pads of the printed circuit board.
US-A-5 205 751 handles an elastomeric, electrically conductive connector for electrically connecting a portion of a first substrate to a portion of a second substrate, said conductor having a tubular shape with two claw arms. Welding is not necessary, since the elastically deformable connector remains in position when compressed between the two substrates. In order to suppress multiplexing access noise in distributed time, which occurs frequently, specifically in GSM terminals, a capacitor needs to be soldered directly to the microphone. As a result of this, the microphone becomes more expensive and its sensitivity decreases when heated during welding. US-A-5 200 717 discloses an apparatus for interconnecting and protecting active electrical fields, wherein an electrically conductive elastomeric material uses it instead of metal for the purpose of protecting and at the same time with the advantage of being compressible. It is obvious that none of the above techniques is capable of fulfilling all the requirements mentioned above. THE INVENTION The object of the present invention is to provide a method of protection and electrical connection of a piece of radio communication equipment with an electrical circuit. According to the invention, this can be achieved by means of a copector the s omé i a, elastically deformable, electrically conductive, of low resistance, with the features described in the rei indication 1. Preferred embodiments of said elastomeric connector are defined in claims 2-7. Another object of the present invention is to obtain a method for assembling a microphone in a radio communication equipment without the need to mount a capacitor directly on the microphone in order to suppress the access noise of mu ti t ip le in time distributed. A further object of the present invention is the obtaining of an assembly method which allows to increase the miniaturization of the radio communication equipment. In order to obtain the aforementioned objects, it is further suggested, according to the invention, the use of the elastomeric connection in the ways defined in the indications 3-10.
THE FIGURES The preferred embodiments of this invention will be described in detail in the subsequent paragraphs, the reference being made with respect to the accompanying drawings, wherein FIG. 1 is a perspective view of the first embodiment of the elastapco connector according to FIG. The invention, Fig. 2 is a perspective view of a second embodiment of elastomeric canector according to the invention, Fig. 3 is a cross-sectional view of the assembly of a microphone with an elastomer connecting according to Fig.
FIG. 4 is a view of the end of the mount of an elastomeric connection with the micro tone according to FIG.
Fig. 5 is a cross-sectional view of an alternative assembly of the microphone by means of an elastomeric connector according to Fig. 2, Fig. 6 is an end view of an alternative mounting of an elastomeric connector with the microphone in accordance to Fig. 5, Fig. 7 is a cross-sectional view of a second alternative assembly of the microphone by means of an elastomeric connector according to Fig. 2, Fig. 8 is an end view of a second alternative assembly of an elastomeric connector with the microphone according to Fig. 7, Fig. 9 is a cross-sectional view of a third embodiment of elastomeric connector according to the invention, and Fig. 1 is a perspective view of a fourth embodiment of elastomeric connector according to the invention. DESCRIPTION OF THE MODALITIES OF THE INVENTION FIG. 1 shows an electrically conductive elastomerically elastomeric connection 10 of low resistance, composed of an elastomeric material filled with metal wires of high conductivity, separated, preferably made of gold or metal rolled in gold. A useful property of such elastomeric conductors is that they contain a plurality of small conductors that conduct linearly through the matepal without driving laterally into the material. The elastomeric connectors can have any shape: circular, rectangular, etc. By shorting the respective ends of said canector, conductor wires made of conductive material form conductors extending in parallel from a first to a second end of the conductor. If said ends are shorted by an annular member, the wires together form a single conduction path. Normally, electrical units are connected to electrical circuits and to other units by two or more paths. A trajectory can provide protection for the second trajectory. Such a "twin advancement" connection can be achieved according to the invention. If more trajectories are desired, more annular members can be added. FIG. 2 shows a second embodiment according to the invention of a connector 3 stamé LCO 10, elastically deformable, the thermally conductive, of resistance, cu-'s > It finds cop Doubt DOG cacas -ordue toras alternantes or μ l aquilas tlb and intermediate sliquitas nonconductive LS, ^ n where all the plaquids are preferably made of sil icón. According to this embodiment, two or more openings 32 are shrouded outside the stamped connector 10. Said openings are found through holes extending in parallel with respect to said driving plots 11b. Both openings 12 interrupt at least one common insert tlb, thereby forming an island of at least one insert with an extension between them. The cut slice 1 rcu 1 to is used as a first path ie conduit 13 for connecting a medium electrical ppmer to a first conductive element or to a cushion in a second electrical means or to a circuit board. A second conductive path 14 e forms by securing the elastomeric connector 10 to a second substantially annular conductive element that encloses or surrounds the cut-off insert. Preferably, said second conductor element is connected to ground, forming with this a protection around the cut-off insert. The protection is effective in all directions even if there are no conductive layers in some planes parallel to a line connecting said openings or if the annular shape of said second conductive element is partially interrupted. Figs. "• 4 show an example of equipment assembly of radio communication such as a microphone 15, buzzer, capsule for listening, etc. in a telephone or telephone, where the microphone is arranged in a rubber package 1 ¿>; The elastomeric connector 10 with openings is provided between the rear side of the microphone and a substrate, preferably in the form of a printed circuit board 17, where it is in contact with a central connection socket and a peripheral connection cushion. in the microphone and, correspondingly, in an electrical circuit of the printed circuit board by mechanically compressing the elastomer to an extent of about 7-12 V *. The first conductive path of the center 13 in this case is constituted by five plates of circuit breaker planes. The other layers of the connector together form the second conduction path 14, which constitutes a protection for the first central conduction path 13. A connecting cushion in the microphone and one in the circuit board are both connected to said first path central driving 13. A second annular connection cushion in the microphone and one in the circuit board are both connected to said second driving path 14, said annular cone cushions form a cor or ircui o in the layers We have to form »the second tray c oria * > driver, the elasba épco 10 connector was found pro "with the conduction layers IIb oriented in an orthogonal direction to the first one of the circle 17. Sometimes it is desirable that a microphone 15 or a buzzer, etc., be mounted in a direction perpendicular to the printed circuit board 17, making it possible to make available the sound input at the bottom of the telephone to the sound output of the upper part of the telephone, as illustrated in Figs. 5 and 6. In such cases, the connection pads on the printed circuit board are provided in a portion of orifice 18 therein. The elastomeric connector 10 is arranged with its conductive layers 11b oriented in a direction perpendicular to the edge portion 18.
A further example of mounting of microphone 15 or buzzer perpendicular to printed circuit board 17 appears in Figs. 7 and 8. In this case, a spring contact 19 welded to the printed circuit board forms an electrical connection between the printed circuit board and the elastomeric connector 10, which is connected to the microphone or the buzzer. The ground signal from the microphone or the buzzer is connected through the elastomer directly to the connection pads of the circuit board. In order to obtain the connection to ground, the conductive layers of the elastomeric conductor must be oriented in such a way that the alternating passages of conductive and non-conductive silicone are perpendicular to the printed circuit board. A third elastomeric connector embodiment according to the present invention appears in FIG. 9. In this case, an elastomeric conductor 10 is manufactured by molding an electrically conductive elastomer, for example, a silos containing silver or copper capsules. . A package 16 is formed as an integral part of the elastomeric connector, which comprises a central cylinder, which forms the first conduit path 13 surrounded by a coaxial tube, which forms the second conduit path 14 with an insulator 20 provided in an interval 21 between the two electrically conductive elastomer parts. This solution has several advantages since the elastomer provides an electrical conductor, a protection, a holder for the microphone or buzzer as well as a package. With an alternative (not shown here) the package 1 6 can be formed as a cylinder of non-conductive elastomeric material, which receives the microphone, said microphone is then connected to a printed circuit board by means of a connector the rich lct ie amenté sndu tio. As shown in Fig, *? , the e? The front side of the edstomeric connection 10 can be located optionally outside the cover 22 of the radio communication antenna. As a result of this, when the apparatus is placed on a flat surface, the sound input to the microphone is completely exhausted. This is a very common way of handling the problem of acoustic instability. Fig. 10 shows a fourth embodiment of the present invention, wherein connecting l < j? ster? co comprises an elongate blade 23 of elastomeric material with one or more layers of conductive metal wires ll = t, spaced apart. The elongated hole is wound and can be connected to a microphone 15, thereby forming the first and second driving paths 13, 14. According to the present intention, the elastomeric copector offers various sales, over the previous techniques, including: excellent vibration and speech absorption; good electrical contact; good protection against radiated HF; the lack of need to solder a capacitor to the microphone; possible improved compact design; current and high production resistance; favorable economy. While the present invention has been described in connection with the preferred embodiments, the various modifications and substitutions that may be made will be apparent to those skilled in the art. Accordingly, it is understood that the present invention has been described as an illusion and a limitation.