Electrical connecting block

BACKGROUND OF THE INVENTION The present invention relates to an electrical connection block comprising a socket for receiving a plug through a first opening, where an electrical connection is made through the socket after insertion of the plug, and a sealing material is provided within the socket to provide environmental resistance.

FIELD OF THE INVENTION The present invention relates to electrical connectors, in particular devices for modular telephone connection, in particular modular electrical connectors. The present invention essentially proposes a method and arrangement for protecting modular telephone connectors against moisture, environmental contamination and corrosion, particularly in wet, waterfront, island and similar areas.

Telephone subscriber connections are being implemented with RJ-type connectors in the ever-growing AT&T systems. The most common of these is the RJ 11 connector, which is manufactured in a variety of sizes to accommodate many different telephone wires. The basic disadvantage of these connectors is that they are very resistant to oxidation, corrosion, severe damage to the environment, salts and the like, and are particularly intense during operation of the telephone network in the presence of current in the connector.

The required intensity protection mechanisms for environmental effects are particularly difficult to maintain with spring-loaded, easily removable plugs of RJ 11 connectors, especially when connecting wires starting from this plug. In this case, moisture and contaminants in the ambient air will easily penetrate the plug, causing corrosion and other effects to break the electrical contact between the contacts and, if necessary, break them. Sockets for RJ 11 connectors are also sensitive to moisture and corrosion, with the additional disadvantage that dust from the environment can easily accumulate inside. In wet, hot climates, such as Florida or parts of the state of Texas along the Gulf of Mexico, malfunctions are common within a few months of installation. These inconvenience telephony subscribers, and cause costs for both them and the telephone company.

On several occasions, it has been observed that specific problems have arisen in the case of telecommunication equipment connected to the subscriber network, such as remote stations connected to the subscriber equipment, causing these failures to occur.

-3tek. It is often desirable to install the RJ 11 telephone connector in a configuration known in the art, or similar telephone connectors to external telephone subscribers, such as junction boxes for connecting cables to houses or remote stations, as discussed above. In the case of known arrangements, access is then ensured by installing the RJ 11 telephone jack at these locations and inserting the appropriate plug into it. Ringing and other wires or other connections in this case are connected from the socket to the corresponding wires of the plug and are connected to the subscriber device. If a test device is to be connected to the RJ 11 telephone socket, the plug shall be pulled out and replaced with a similar connector but connected to the test device. Thus, the quality of the various wires can be checked. The test apparatus can be configured with a suitable housing, but these arrangements are nevertheless less resistant to moisture and other corrosion effects.

Accordingly, there appears to be a need for an arrangement and a method of protecting the electrical wiring of the socket and the associated plug, in particular from telephone network connectors, from environmental influences. In particular, it is desirable to provide a plug and socket that provides, above all, a structure that provides environmental resistance to RJ 11 telephone connectors.

It is our intention to provide a connector to meet the above requirement. Accordingly, it is our task to provide connectors that are highly resistant to environmental influences, and are highly protected against moisture and corrosion, especially telephone network connection arrays, taking into account the fact that these connectors may require repeated interruptions and interruptions. Thus, in the case of RJ 11 telephone connectors, the object is achieved by providing a structure capable of protecting the telephone network equipment to and from the network, which retains its protection even after repeated wiring and disconnection operations.

To accomplish this object, there is provided an electrical connection block comprising a receptacle portion receiving a plug through a first opening and having an electrical connection socket thereafter, and a sealing material for resisting the environment within the receptacle portion, elastic diaphragm for substrate 95 02191

-4ma is provided which defines a space formed in the substrate, passing through a second opening forming a passageway, receiving at least a portion of the sealing material, and deforming in the flexible diaphragm outwardly during movement of the sealing material and exerting a force to prevent the sealing material from moving a recess is provided.

It is particularly advantageous to fill the container portion in the connector block of the present invention with a sealant made of a silicone-based gel that is environmentally resistant and insulates. Typically, this sealant has a Voland hardness of about 15 g to about 40 g, while the elastic diaphragm 10 is formed with Santoprene rubber having a Shore A hardness of about 45 g to about 75 g.

Particularly advantageous for establishing a reliable electrical connection is the embodiment of the electrical connection block according to the invention, wherein the substrate comprises at least one electrical contact, the end face of which is coated with a silicone rubber based adhesive and the electrical contact is connected with at least one wire.

Effective protection against various effects is provided by the embodiment of the electrical connector block according to the invention, wherein the sealing material is formed from about 15 g to about 50 g, preferably about 25 g to about 35 g, of Voland 20 hardness material, which is generally preferred. wood stickiness of about 12 g to about 22 g is typical.

A variety of sealants are suitable for the intended purpose, and it has been found that the sealing material comprises at least one of aliphatic urethanes and styrene-ethylene-butylene-styrenes, or contains a silicone-based gel. present.

Particularly preferred for telephone network electrical connection blocks is an embodiment wherein the electrical connection path to the socket comprises at least one wire, in particular a wire, connected to a contact coated with a silicone rubber based adhesive.

Likewise, in connection with telephone network connections, it is expedient to provide an electrical connector block according to the invention wherein the container portion is elastomeric, wherein the resilient support structure comprises at least one resilient diaphragm having a Shore A hardness of about 45 g to about 75 g.

P 95 02191

-5Also, a very important method for solving the problem of the present invention is the use of a spring-type plug in the connector socket of an RJ-type telephone connector in which a sealing material is pre-arranged and creating a resistance and insulating connection, when inserting the plug used in the multi-contact RJ telephone connector into a space filled with sealing material inside the connector socket, the space is filled with a quantity of non-pre-solidified gel used in the RJ telephone connector, the gel is solidified and the plug used in the RJ telephone connector . and removing the solidified gel from the space and thereby permanently encircling the plug used in the RJ-type telephone connector with the solidified gel.

The object of the present invention is to provide a telephone connection plug which is very novel in the everyday practice of telephone network work, which is designed as a flexible structure fitting into an RJ type telephone connector and has a plurality of RJ-type telephone contacts in its housing. electrically connected to multiple telephone wires, wherein, according to the invention, the housing and at least a plurality of contacts for implementing the RJ-type telephone connection comprise a jelly-receiving receptacle and the housing, together with the contacts, is adapted to provide an environmentally-friendly connection.

Also, in the realization of telephone and telecommunications subscriber networks, an electrical connector block, which according to the invention has at least two mating sockets, can be used, whereby each plug can be fitted with a plug, furthermore, the first plug of the plugs is inserted into an amount of gels insulating against the environment and inserts a second plug into the socket upon insertion into the socket, whereby the first plug is preferably formed as an elastic joint block, if the second plug is designed as a plug suitable for implementing an RJ 11 telephone connector.

P 95 02191

The embodiment of the electrical connector block according to the invention, wherein the first plug has a plurality of contacts, the socket comprises an internal comb connector, in which the contact fixing teeth are formed. tooth height between about 2.5 mm and about 5.1 mm, the substrate being arranged in an arrangement for holding the first plug within the first aperture and at the same time forming a gel-filled recess between the end of the first plug and the end of the first aperture, the recess extending at least about 2.5 mm from the end of the first plug.

Particularly suitable for practical use is the sealed plug for solving the problem of the present invention, which is essentially a telephone network electrical connection which according to the invention has a tear elongation of at least about 100% and a Voland hardness of about 15 g to about 50 g. surrounded by the required amount of jelly, wherein the gel is arranged in a sealing amount around the plug and a second plug when using a matching socket. It is highly desirable for this connector to have an embodiment where the combined gel and plug volume are at least about 10% larger than the plug volume.

The invention will now be further exemplified. with reference to the accompanying drawings. In the drawing it is

First Fig. 4A is a rear view of a wall-mounted version of an electrical connector block according to the invention in the form of a RJ 11 telephone connector;

Second Figure 2 is a cross-sectional view of the RJ 11 wall telephone connector of Figure 1 along line 2-2;

Third Fig. 4A is a side elevational view of a socket used in a modular RJ 11 type telephone connector according to the present invention.

4th Figure 4A is a sectional view taken along line 4-4 of the socket of the telephone connector of Figure 3; FIG. 3A is an embodiment of an operation for encapsulating a spring-loaded plug in an embodiment of the present invention,

5B. FIG. 4A is another embodiment of an operation for encapsulating a spring-loaded plug in one embodiment of the present invention;

6A. Fig. 4A is a front view of a jelly-shaped version of a spring-loaded connector according to the invention;

P 95 02191

-76Β. Fig. 3A is a side view of a gelled version of a spring-loaded connector according to the invention, showing typical dimensions;

7A. FIG. 4A is an insertion of a variant of the plug connector of the present invention surrounded by a gel into a particular type of socket;

7B. FIG. 4A is an insertion of a variant of the plug connector of the present invention surrounded by a gel into a different type of socket;

7C. FIG. 4A is an insertion of a further embodiment of a plug connector of the present invention surrounded by a gel into a particular type of socket;

7D. FIG. 4A is an insertion of a further embodiment of a plug connector of the present invention surrounded by a gel into a different type of socket;

8A. Figure 8B is a modified version of the RJ 11 telephone connector housing to improve the conditions for sealing with a gel according to the present invention; Figure 8A. Figure 3 is a side elevational view of the housing of an RJ 11 telephone connector shown in Fig. 2A, a

8C. Figure 8A. Fig. 6A is a side elevational view of the housing of the RJ 11 telephone connector shown in Fig. 6a, after inserting a spring-loaded plug connector surrounded by a gel;

9th Fig. 4A is a perspective view of a plug used as an RJ 11 telephone connector in the electrical connector block of the present invention;

10th FIG. 4A is a perspective view of a preferred embodiment of a diaphragm adapted to the housing of an electrical connector block of the present invention as an RJ 11 telephone connector.

According to the invention, the electrical connection block is essentially designed to provide subscriber connections in telephone and other telecommunications networks. Above all, we wanted to improve the design features of AT&T's telephone connectors, commonly known as RJ 11s, by developing solutions to increase their resistance to environmental influences. Figure 1 is a rear view of a telephone wall jack RJ 11. The figure shows a connecting block 10 comprising a front plate 20 and a rear socket 30. Only a portion of the rear socket 30 is shown in Figure 1, since it is substantially covered by an elastic diaphragm 40 in accordance with the present invention. The elastic diaphragm 40 has a retracting recess 50, the role of which is hereinafter referred to

P 95 02191

8 is still returning and has a through hole 60 for receiving telephone wires 70.

Figure 2 is a partial sectional view showing a cross-sectional view of the RJ 11 telephone connector of Figure 1, taken along line 2-2 of Figure 1. As can be seen, the telephone wires 70 are connected to the spring block 80 and the spring block 80 is provided with wire connectors 85. The RJ 11 telephone connector includes a socket 100 into which a plug 90 can be pushed in and its position is secured by a stop bridge 110. In this way, the wire connectors 85 provide electrical connection along the telephone wires 70. Behind the collision bridge 110, a passageway 120 is provided which connects the space receiving the socket 100 to the back cavity 130. The back cavity 130 is closed by the rear seat 30 and the resilient diaphragm 40 disposed thereon.

The protection of the wire connectors 85 and of the electrical connections in general from moisture and other corrosion is provided by the presence of the passage 120 in the present invention by filling the back cavity 130 with a sealing material 140 permeable to the passage 120. Preferably, the sealant 140 is a hydrophobic insulating composition or composition that is capable of retaining moisture and at the same time insulating the conductors and contacts. For this purpose, gels known in many forms, and above all silicone-based gels, are particularly recommended. Gels are required to have greater cohesiveness, i.e. better adhesion to themselves than to other surfaces, i.e., when the plug 90 is removed from the socket 100, the gel-like sealant 140 is released from the plug 90 and retained within the socket 100, engage with the rest of the sealing material 140. However, in the case of a gel, the adhesive should be selected so as to provide adequate closure and sealing along the contacts, wires, electrical connections, and sensitive components located within the connector block 10.

Hardness requirements for sealant 140 should be selected based on the need to provide the necessary protection against contaminants in the environment. However, the sealing material 140 must also be soft enough to be displaced when the plug 90 is inserted, to take the shape of the connector portions of the socket 100 and to adequately secure it. The hardness of the gel is also important to the user. The RJ 11 telephone connector P 95 02191 is recommended when inserting the 90 plug

-9 A complete snapping sound is produced when fully inserted into the socket. If the sealing material 140 is too rigid, no such indication is given.

The resilience of the sealing material 140 is also a very important feature, as it is properly selected to return to the protective position when the plug 90 is removed.

A wide variety of sealing materials 140 useful in carrying out the connector block 10 of the present invention are known and commercially available. These include various flexible melts, ointments and flexible epoxy resins. It is highly desirable that the sealant 140 is selected from the group consisting of gels having dielectric properties, for this purpose an aliphatic urethane gel, a urea gel, a silicone-based gel or a thermoplastic gel, optionally supplemented with an oil or other fluxing agent. Thermoplastic gels may include styrene-ethylene-butylene-styrene or styrene-ethylene-propylene-styrene gels. Many other variants of various soft gelatinous materials are known, which may or may not be used with or without an oil or flux. Such are described, for example, in US-PS 4,634,207; 4,600,261; 4,643,924; 4,865,905; 4,662,692; 4,595,635; 4,680,233; 4,716,183; 4,718,678; Nos. 4,777,063 and 4,942,270; U.S. Pat. Another particularly recommended gel is Dow Corning's Sylgard (Dysylgard).

The basic physical characteristics of the gels that have been found useful in creating the electrical connector block of the present invention are summarized below. Penetration of conical test tool about 50 x 10 '¹ and about 350 x 10 '¹, preferably about 100 x 10 '¹ and about 300 x 10 '¹, more preferably about 100 x 10 '¹ and about 250 x 10 '¹ . The elongation at break will generally be at least about 50%, but preferably at least about 100% to about 200%, most preferably between about 400% and about 800%. Another method for determining the hardness of a conical test tool penetration is the Voland hardness, which is determined by a Voland-type texture analyzer. Voland hardness values ​​of about 15 g to about 50 g are desirable for the electrical connector block of the present invention, with Voland hardness values ​​of about 20 g to about 40 g being particularly preferred.

In the embodiments shown in Figures 1 and 2, a silicone-based gel was used which had a Voland hardness of about 31 ± 6 g, a sagging range of about 28 ± 10%, and a wood hardness of about 17 ± 5 g. The 140 sealing material is a telephone connector of the RJ type

P 95 02191

It is expedient to fully fill the 120 passages associated with the -1090 plug, the 130 cavities and the other internal cavities and spaces. The substrate 100 was also filled with the sealant 140 in its full volume, but in practice it was sufficient for the sealant 140 to completely cover the surface of the wire connectors 85 prior to inserting the plug.

After inserting the plug 90 into the socket 100, a portion of the sealing material 140 is displaced. The displaced sealing material 140 flows through passage 120 into back cavity 130. As a result of this overpressure, the retracting recess 50 is deformed outwardly so that excess sealant 140 can be received by the rear cavity 130. The elastic diaphragm 40, which seals the container portion including the cavity 130, is preferably formed of a rubber-like elastic material, such as Monsanto's Santoprene. Other suitable materials include elastic plastics, rubberized fabrics, but optionally any elastic material which is used in the art to form a diaphragm or membrane. The resilient diaphragm 40 must be sufficiently resilient to accommodate the sealing material 140 which is inserted during insertion of the plug 90, but must also be sufficiently rigid to force the sealing material 140 back into the space of the socket 100 after removal of the plug 90, in at least an amount sufficient to provide protection for the wire connectors 85. The resilient force of the elastic diaphragm 40 acts on the sealing material 140 even when the plug 90 is fitted in place, this overpressure being required to keep away the corrosive impurities. The Shore A hardness of the flexible diaphragm 40 is preferably in the range of about 20 g to about 100 g, particularly preferred is in the range of about 45 g to about 75 g, and is most preferably hardness in the range of about 55 g to about 65 g. it is. The flexible diaphragm 40, in cooperation with the sealing material 140, also provides a suitable seal in the vicinity of the telephone wires 70 where they are led out of the connector block. In most known configurations, the sealing of a single wire has been a problem, not only the conventional four wires, while the arrangement of the present invention can provide effective protection of up to eight or more wires. The seal formed by the gel and the elastic diaphragm 40 is particularly effective for telephone wires 70, but this purpose can also be achieved by the use of ointments, which, however, has the disadvantage that the effectiveness of the seal is impaired by repeated movements.

P 95 02191

A further advantage of the connector block 10 according to the invention is that the protection of the wire connectors 85 is also provided. The sealing material 140 covers a portion of the surface of the wire connectors 85, forming a coating 150 which is well bonded thereto. Wire connectors 85 are generally gold plated metal plates and most sealing materials 140 do not adhere well to gold. The coating 150 is applied to the face of the wire connectors 85. Preferably, the coating 150 adheres well to the surface of the wire connectors 85 and is also bonded to the sealant 140. In the case of gels, mixtures with a high tack or adhesive are particularly useful. When the plug 90 is inserted, a portion of the gel remains on the front surface of the wire connectors 85. In this case, the gel elongates, the main portion of the material is deflected by the plug 90, but thin strips remain. As the plug 90 is pulled out, the gel contracts and contacts the surface of the wire connectors 85 to provide protection. However, a substantial part of the surface of the wire connectors 85 must be left open to reliably establish the electrical connection so that it can perform the function of the plug 90. In a preferred embodiment, the coating 150 comprises a silicone rubber adhesive component and is applied to the wire connectors 85. For example, it is convenient to use Dow Corning's room temperature vulcanizing, generally RTV-labeled, silicone-based gums, such as Silastic T silicone rubber having a Dow Corning hardness of 20.

The coating 150 is preferably formed on the wire connectors 85 at an earlier stage of design, for example, prior to inserting the spring block 80 into the rear socket 30 and allowing it to harden. The rear socket 30 can later be filled with silicone-based gel. When the gel solidifies, it is bonded to the coating. Obviously, any composition well bonded to the wire connectors 85 and adhering to the sealant 140 can be used to form the coating 150. At the same time, the coating 150 serves a utility function by sealing the openings of the wire connectors 85 in a carrier body made of plastic. Therefore, the coating 150 does not have to be bonded to the gel.

Another important feature of the embodiment of Fig. 2 is that a spring-supported dust cover 160 is shown, which is shown in part, and can be pivoted about 170 screws so that the cover 100 is retained after removing the plug 90.

Figures 3 and 4 show another embodiment of the electrical connection block according to the invention, which in many respects is similar to that shown in Figures 1 and 2.

P 95 02191

<img file="HUT72243A_D0001.tif" />

- 12 solutions. Fig. 3 is a perspective view of a socket 30 'for implementing a partial connector RJ 11 telephone connector. The rear socket 30 receives a socket and is provided with an alignment projection 200 and 210, whereby the socket 30 'is snap-on and secured therein to an end plate not shown in the drawing. The socket 30 'is provided with a ridge 220 for fixing a flexible diaphragm 40' to the surface. FIG. 4A is a cross-sectional view of the modular unit of FIG. From this it is clear that the adapter 210 forms a separate protruding member which can be bent by force and thereby ensure that the socket 30 'can be snapped into the base plate of the substrate.

Again, the sealing material 140 may be inserted into the structure by filling the interior of the socket 30 '; alternatively, the spring-loaded connecting members may be surrounded with the sealing material 140 prior to insertion into the socket 30'. This approach has the advantage that FIG. 5B and 5B. As shown in Figures 1 to 4, it simplifies production and reduces its cost. 5A. FIG. 3B is made of 300 mounting plates in which gel consolidation is possible. In this, a plurality of recesses 310 having a rectangular cross-section are formed. In each socket 310 of rectangular cross-section, a spring-loaded block of wires and contacts is inserted and subsequently filled with gel. After solidification of the gel material and its attachment to the spring-loaded connector block, the latter, except for the rectangular socket 310, are provided with connector blocks 320 surrounded by a gel. The shape of the sockets is of secondary importance for the invention, e.g. 1 to 3, a fastening plate 300 'having circular cross sections 310' is formed and the gel is inserted into the latter. The shape and size of the gel is selected so as to produce a body of at least 10%, possibly 25% larger than the volume of the spring-loaded connector block, but it is particularly desirable that this volume be at least 50% larger, as the volume of the connected block inserted. The increase in volume is of course limited by the fact that the connection block must be inserted into the socket as a plug.

Because substrates are available in a wide variety of designs on the market, the size of spring-loaded junction blocks encased in gel can also vary widely. Some embodiments of the gel-encapsulated 330 spring-loaded connecting blocks are illustrated in FIG. 6A. 6B and 6B. Figure 3B. The spring block assembly 330 shown herein has a gel coating on its outer surface, defined by an upper inclined surface 331 extending from the front to the rear, and a lower inclined surface 332 extending from the front to a center centered on the rear surface.

P 95 02191

-13333 flat front face. The spring-loaded coupling block 330 is completely gel-encapsulated, but for the sake of clarity, the connection features are not shown in the drawing, although it is clear that they must be in contact from the front, bottom, and rear. Alternatively, the upper inclined surface 331 may engage the lower inclined surface 332 without intervening the flat end face 333.

In this embodiment, the spring-shaped coupling block 330 surrounded by the gel is characterized by height h, width w and length t, as well as vertical distance s1 of upper inclined surface 331, vertical distance s2 of lower inclined surface 332, vertical distance s3 of flat face 333, and 332 is the horizontal distance 54 of the horizontal portion associated with the lower inclined surface. Based on the size of most RJ 11 telephone connectors, the dimensions of the spring-loaded connector block 330 enclosed in the gel may be as follows: Height h is about 12.7 mm to about 20.3 mm, aw width is about 7.6 mm and about Between 16.5 mm and a length t of about 12.7 mm to about

18.5 mm, the vertical distance s1 is about 1.3 mm to about

7.6 mm, the vertical distance s2 is about 6.9 mm to about

11.4 mm, the vertical distance s3 is between 0 mm and about 5.8 mm, and the horizontal distance 54 is between 4.6 mm and about 8.4 mm. The silicone-based gel, with the dimensions defined above, has a coating gel weight of about 1.6 ± 0.05 g at a 330 spring coupling block.

7A, 7B, 7C. and 7D. Figures 1 to 8 show two copies of shapes obtained by gel coating of different sockets. 7A. 3A to 5B illustrate a block of 350 spring terminals surrounded by a gel which can be inserted into a 360 socket. The 360 ​​port is part of the RJ 11 telephone jack. 7B. Fig. 6A shows how the spring block 350 can be inserted into the socket 360 of the RJ 11 telephone connector after coating with the gel. 7C. Fig. 4A similarly shows a spring block 370 surrounded by a gel which can be inserted into a socket 380 which is part of a RJ 11 telephone connector. 7D. Fig. 4A is a front view showing how the spring-loaded connector block 370 of the RJ 11 telephone connector is connected to the socket 380 after coating with the gel.

8A. FIG. 4A also illustrates a possible embodiment of the present invention for modifying the RJ 11 telephone connector. Environment 95 02191

- This solution is also sealed against gel effects. The connector socket 400 of the RJ 11 telephone connector is provided with a connector opening 405 which can be fitted with a suitable plug from the plane of the figure. The connector opening 405 is modified by inserting a central notch 415 at its lower edge 410 adjacent to the spring connector block and its contacts, extending along the length of the lower edge 410, approximately 0.8 mm deep and having 420 corners at each end. there is a spacer. If the structure of the RJ 11 telephone connector is not altered, its socket is filled with jelly, which tends to drain along the bottom edge 410 of the connector opening 405 and is therefore sheared against the bottom edge 410 by the insertion of the plug. If the gel is sheared, there is no elastic contact with the gel when the plug is reinserted, the gel retracts along the face of the connector block and cannot return to its protective position at the contact surface of the connector block after removal of the plug. Creating a central notch 415 and securing the corner spacers 420 allows the plug to remain in its designated position after insertion, leaving a space between it and the edge of the receiving body that reduces the amount of shear applied to the gel, i.e. the gel it retains the desired characteristics when inserting and removing the plug, which must be repeated several times in practice. 8A. FIG. 4A shows that an inner comb coupling 425 has teeth 430. This allows the contacts of the inserted block to be held in place. Compared to known solutions, the length of the teeth 430 has been shortened to a height of about 1.3 mm, so that the gel can flow through a larger space when inserting the plug, and this larger space allows better return flow conditions when the plug is pulled out. From the same point of view, the number of teeth 430 is smaller than usual. If the number of telephone wires is n, then a total of n + 1 teeth are required to hold them. By reducing the number of teeth, the effect of shortening the length is strengthened, that is, the conditions for the flow and movement of the gel are improved.

8B. Fig. 4A is a partial sectional side view of a housing housing the RJ-type telephone connector socket. In this view, it is clearly seen that a side wall spacer portion 435 is provided on which, after insertion, the spring-loaded connector block is supported and also has a notch 440 into which a lateral extension of the spring-loaded connector block can be inserted. With this solution, the position of the inserted spring block block can be secured, in such a way that the previously known elP 95 02191 &lt;· · · &lt;

It is about 1.3 mm lower than -15 layouts. In the rear upper part of the connector socket 400 there is provided a passage 445 through which wires can be passed and these wires communicate with the inserted spring connector block. 8B. Figure 4A also shows that a modified latch 450 is used, which is not a raised step, but rather a notch, so that the insertion movement of the spring block can be controlled in both directions, i.e. insertion, not only to prevent accidental extraction. possible.

The significance of these modifications is, above all, the importance of the requirements of Section 8C. 4A, which shows a side sectional view of the connector socket 400 of the RJ 11 telephone connector after inserting the spring connector 455. The latter is embedded in 460 gels. Due to the smaller length of the tooth 430 of the inner comb engagement member 425, also considering the lowered position of the spring engagement member 455, a passageway 465 is formed through which the gel may flow during insertion or withdrawal of the plug. The latch 450 is configured to provide a spacing between the spring member 455 and the socket 400 to provide a gel-filled recess 470. The gel in recess 470 facilitates an elastic connection between its material and the face of the spring-loaded connector 455, which is essential for the properties of the moving material when inserting the plug, so that the previously relocating gel 475 retracts to its previous position when the plug is removed. The dimensions of the recess 470 are preferably between about 2.5 mm and 5.1 mm, particularly preferably about 3 mm deep.

Figure 9 illustrates a plug 500 for an RJ 11 telephone connector that plays an important role in establishing a telephone connection. The plug 500 has contacts 505 in a space filled with jelly and solidified after application of the jelly. Before or after the gel has been solidified, wires 510 are fitted and adjusted to position within the plug 500 by applying pressure at anchorage 515. Thus, the RJ 11 telephone connector provided with plug 500 has three zones in which insulation against the environmental influences is required, namely the contact zone 505, the wire entry point 510, and the attachment point 515. The plug 500 is filled with gel to seal both the wire entry point 510 and the attachment point 515. By placing the plug 500 in a gel-filled socket, a seal is also provided in the zone of the contacts 505, i.e. a suitable seal is formed at any location sensitive to environmental damage at the contact utilizing the plug 500.

P 95 02191 • ···· *

• · · ·

Fig. 10 illustrates a further embodiment of a flexible diaphragm that fits into the socket of a telephone connector of the RJ 11 type which also provides a solution to the present invention. The socket includes an elastic diaphragm 600 formed by a rectangular plastic frame 605 with an elastic diaphragm 610 attached to the interior thereof. It is particularly advantageous to have a foam covered wire on both sides of the elastic membrane 610 which engages with both the rectangular plastic frame 605 and the socket. In the elastic diaphragm 600, a lateral cutout is made which fits into the recess which receives the wires in the socket so that the position of the wires can be secured and their surface sealed. The diaphragm 600 may also be provided with inner ribs which, in conjunction with the ribs formed on the side walls of the socket, provide a firm grip.

As described above, the present invention provides effective protection against environmental damage to electrical connection blocks. It will be understood that the present invention has been described above with reference to preferred embodiments and non-exclusive possibilities. A person skilled in the art will obtain a great deal of information from the description, which will enable him to develop further solutions based on his knowledge. For example, although the invention has been described above based primarily on the example of a RJ 11 telephone connector, the teachings apply to other RJ telephone connectors, including, for example, RJ 14 or RJ 48, and other electrical connector blocks, such as electrical terminals used in high humidity environments. . Another embodiment may be that the resilient diaphragm surrounding the substrate or socket is disposed at a different point to the insertion point of the plug, i.e., the entire socket is not wrapped around or inserted against the insertion point of the plug. Alternatively, the role of the substrate and plug in the sealing is reversed. It follows that the present invention does not essentially relate to the embodiments described herein by way of example, but to the features which follow from the appended claims and is capable of implementing the latter with the knowledge of one skilled in the art.