DE2423233A1 - DEVICE FOR ELECTRICAL AND MECHANICAL CONNECTION OF COAXIAL CABLES - Google Patents

Description

DIPL.-ING. HORST ROSE DIPL.-ING. PETER KOSEL PATENT LAWYERS

3353 Bad Gandersheim, May 13, 1974

P.O. Box 129 Hohenhöfen 5 Telephone: (05382) 2842

Telegram address: Siedpatent Badgandershelm

Our file no. 2167/3 ^ 8

Hans Kolbe & Co.

Patent application dated May 13, 1974

Hans Kolbe & Co.
5202 Bad Salzdetfurth Bodenburger Strasse 32

Device for the electrical and mechanical connection of coaxial cables

The invention relates to a device for the electrical and mechanical connection of coaxial cables on electrical devices and components with simultaneous strain relief with a contact element for the connection the inner conductor and a contact and fastening element for the outer conductor of the coaxial cable, which is detachable can be pressed against the outer conductor.

There are many in a wide variety of electrical devices, and especially in high-frequency devices Places required to introduce coaxial cable into the device and connect it there both electrically and mechanically, both a connection for the inner conductor of the coaxial cable and a connection and a mechanical fastening of the outer conductor of the coaxial cable is necessary. In particular, such devices are used in the sockets for radio and television systems, where the coaxial cable is inserted into the socket body and there must be electrically and mechanically connected in order to then make the necessary electrical contact to the

Bank account: Norddeutsche Landesbank, Bad Gandersheim branch, account no. 22.118.970 - Postal checking account: Hannover 66715

509848/0104 ^{m / Rs} '

To be able to produce socket sockets.

The connection of coaxial cables with the help of such devices entails considerable installation effort, so that one must constantly strive to make this connection as simple as possible, around one at the same time secure, but to achieve connection to be carried out quickly. Particularly secure contact must be ensured; will. In the known devices of this type are both for the connection and the attachment of the inner conductor as well as for the connection and fastening of the outer conductor of the coaxial cable to be connected Screw clamps or screw terminals provided. Such screw clamps or screw terminals do not only bring one time-consuming assembly work with it, since the respective conductors are always introduced into the respective connection points and then the respective connections have to be made using the screw terminals or screw clamps, but there are also relatively numerous components on the device or on the device necessary, which also must be secured against loss because of their large number of screws and the like. Especially with sockets with their very limited space, such parts and assembly operations are highly disadvantageous.

Even with an antenna socket, it is a contact and fastening element for the outer cable conductor known, which is designed in the manner of a lockable swivel clamp. It is used as a contact element for the Inner cable conductor is provided with a contact spring terminal guided in the socket body and deflectable during assembly. These Components are complicated in design and require considerable structural effort in the housing, Storage and guidance in the can body. In particular, these components and their arrangement are not different Cable diameter suitable. The cable connection itself

509848/0104

ultimately requires cumbersome handling.

The invention is based on the object of providing a device of the type specified at the outset, which with the greatest possible security of electrical contact with some components a simple connection of Allows coaxial cables and reduces the required assembly operations to a minimum. This will be after the invention achieved in that the contact and fastening element for the outer conductor from one arranged coaxially to the inner conductor socket, displaceable against spring action in the radial direction and when released, there is a clamp that is automatically placed against the outer cable conductor under the action of the spring. Through this it is achieved that only a simple component is required for the connection of the outer cable conductor, namely the Clamp for the outer conductor that works solely under the action of a spring. It is achieved that only after movement The previously exposed coaxial cable can be inserted into the clamp against the spring action must and then only the clamp with its spring must be released, after which both the contact as well as the mechanical mounting of the outer cable conductor on the clamp with constant, secure spring action is reached. Such a device enables a safe operation even with different cable diameters and assembly is easy to use.

In many electrical devices and in the sockets described, the contact and fastening elements are held on a support plate. One embodiment of the invention is special for such arrangements advantageous in which the clamp is formed from an approximately U-shaped bracket, the bracket legs through the support plate passed through and that on the side of the support plate opposite the bracket by finger pressure

5098A8 / 0104

to release the clamp bracket can be deflected against the action of at least one compression spring and at Release presses the inserted coaxial cable against the support plate via the clamp bracket. That beforehand accordingly The cut and stripped end of the coaxial cable is pushed through against the action of the compression spring after finger pressure inserted the bracket, and it then only needs the compression spring to be released to both the flawless contact as well as the secure attachment and mounting as well as strain relief of the entire cable on the Ensure bracket.

In a further development, the bracket legs are zv / corner-wise on the side opposite the bracket connected to at least one compression spring supported on the support plate. But it is also possible just a finger actuator with the bracket legs closed connect and apply a spring to the bracket itself below the support plate in a suitable manner. It is particularly useful if, according to a further embodiment of the invention, the compression spring for the The clamp bracket is designed as a curved leaf spring which is supported on the support plate and can be deformed with the pressure of the finder is. On such a leaf spring, the bracket legs can be passed through the support plate particularly easy to attach, and this curved leaf spring also forms a simple finder support for actuating the clamp bracket during the insertion process.

According to a further advantageous embodiment of the invention, the contact element is for the inner conductor of the coaxial cable is designed as a socket arranged coaxially to the clamp or to the clamp bracket. One Such a design is particularly suitable for sockets for radio and television systems and high-frequency cables there especially suitable for antenna sockets. It is

509848/01 (K

With the help of the invention, especially with such sockets, it is possible to give the respective cable ends an optimal cut length and then the connection and the fastening Can be achieved by just one insertion process. It is then namely due to the coaxial arrangement of the socket and. Clamp and its spring actuation only after moving the clamp against the spring action previously uncovered coaxial cables plugged in and released the clamp with its spring, after which already at the same time the necessary contact has been made in the socket for the inner conductor and the contact has been made as well as the mechanical mounting of the outer cable conductor on the clamp or on the clamp bracket under constant safe spring action. This can or the like without the aid of additional measuring tools. be performed. Even if several coaxial cables are connected, the simple plug-in installation results in considerable savings reached at assembly time. Especially with sockets, because of the limited space available for installation fastening with screw terminals or screw clamps very hinder, is that achieved according to the invention Complete plug-in assembly of the coaxial cables is a great advantage.

A particularly useful for this plug-in assembly of the socket of this device according to the Invention is achieved in a further embodiment of the invention in that the socket for the inner conductor of the coaxial cable from a plastic support part with an insertion opening for the inner conductor and at least one The contact spring is embedded in the plastic support part and detects the inner conductor in the insertion opening in a contact-making manner exists, which at the same time the electrical connection

509848/0104

forms contact outside of the plastic support part. A Such plastic support part can be shaped according to the respective application conditions and certainly the Clamp bracket be held coaxially opposite and also take on other connection and support functions. ·

In a further embodiment, the compression spring for the clamp bracket is expedient as one on the support plate designed supporting and deformable with finger pressure arched leaf spring. On such a leaf spring the bracket legs can be attached particularly easily after passing through the support plate, and it this arched leaf spring also forms a simple finger rest for operating the clamp bracket E instal process.

Are the contact and Fastening elements in connection with a cable feed-through opening arranged in an electrically conductive housing wall, so it is to ensure a flawless HF-tight cable entry is particularly advantageous if the clamp bracket is a further embodiment of the invention has resilient tongues for the outer cable conductor, which rest resiliently on the inside of the housing wall. To this In this way, the entire cable lead-through opening is safely shielded, and it also becomes the electrical contact between the outer cable conductor, clamp bracket and the housing wall serving as ground

If the device according to the invention for a socket for the connection of coaxial cables with a the support plate for the sockets of the socket forming the front plate and at least one cable insertion opening is used in a wall of the can body running perpendicular to the front panel, then according to another Embodiment of the invention a particularly simple design and particularly simple assembly in further

509848/0104

Formation of the invention achieved in that the plastic support part with the insertion opening and the contact spring for the inner conductor (s) of the coaxial cable or the coaxial cable is shaped so that it at the same time receives at least the inner conductor pins or socket socket the entire internal structure of the socket _o If cable insertion openings are provided on two opposite walls in such a socket, as is the case with most antenna sockets, then in a further embodiment of the invention each insertion opening is appropriately assigned a clamp bracket with a leaf spring and is also the plastic support part Provided on both sides with an insertion opening with a contact spring assigned to a clamp bracket. This results in a simple, compact embodiment that is particularly suitable for insertion assembly.

The connection ends of the contact springs and the socket sockets are expediently passed through the plastic support part and then end in a support plate, in particular a printed circuit board, for electrical components and circuit elements Socket allows. In this case, in a further simplification of the overall structure and in a further development of the invention, the plastic support part itself can be designed as a support plate, in particular a printed circuit board, for electrical components and circuit elements, _etc.

According to a further embodiment of the invention, the outer conductors are two or more coaxial cables to be connected captured by a common clamp or a common U-shaped bracket or "pressed against the support plate", This allows two or more cables to be connected with a single component and with a single press of a finger will".

509848/0104 ■

In the drawing, embodiments of the invention are shown, namely the drawing shows embodiments of antenna sockets with two sockets, which with
the device according to the invention are provided _o They show:

Figo 1 is a diagrammatic view of the entire socket \ socket with devices according to the invention,

2 shows a sectional view through the socket according to
Figc 1 with representation of the clamp bracket for the contact! and the attachment of the outer conductor of the coaxial cable, ■

Pig. 3 is another sectional view showing the plastic \

supporting part and the socket for the inner conductor of the>

Coaxial cable, '^;

FIG. 4 shows a view according to FIG. 3 with a particular j Embodiment of the plastic support part, j

FIG. 5 is a sectional view corresponding to FIG. 2 of a | ■ Another embodiment for simultaneous contact and j fastening of the outer conductors of two coaxial cables. \

The socket shown points to opposite- | the housing walls 1 cable entry openings 2,> in each of which a coaxial cable 3 is to be plugged in, i in order to achieve the respective connection to the sockets 4 »I

j The device according to the invention consists according to ■ j

Figc 2 and 3 basically in one as a socket 5 j

formed contact element for the inner conductor 6 of the j

Coaxial cable 3 and a contact and fastening element j

for the outer conductor 7 of the coaxial cable 3, which contact ι

and fastening element made of a coaxial to the inner conductor Socket 5 arranged, against spring action in radial

■ seal slidable and automatically when released;

under the spring action against the outer cable conductor 7;

legging clamp 8 "'

509848/0104

The socket outlet, like many electrical housings and devices, has a metal support plate 9. The clamp is, as Fig. 2 shows, formed from an approximately U-shaped bracket, the bracket legs 8a through the support plate 9 passed through and on the opposite side of the support plate 9 from the bracket 8 with a the support plate at the two ends supporting arched leaf spring 10 connected. This leaf spring 10 is through Finger pressure deflectable against the support plate 9 and, when released, presses the clamp bracket 8 with the inserted Coaxial cable 3 against the support plate 9 from the inside when the coaxial cable 3 with its inner conductor 6 in the socket 5 is inserted and its outer conductor 7 has reached the area of the clamp bracket 8.

The clamp bracket 8 for the outer cable conductor 7 is also provided with resilient tongues 11 which, as FIG. _{1 shows, rest resiliently on the inside of the housing wall}

The socket 5 for the inner conductor 6 of the coaxial cable 3 consists, according to FIG. 3, of a plastic support part 12 with an insertion opening for the inner conductor and at least one contact spring 13 embedded in the plastic support part 12 and detecting the inner conductor 6 in the insertion opening, which simultaneously, as shown in FIG shows that the electrical connection contact 14 outside the plastic support part 12 forms ₀

In the socket shown in FIG. 1, cable bushings are provided on both opposite socket walls. openings 2 provided, then the plastic support part on its two sides facing the respective housing walls with a socket 5 and the associated one Contact spring 13 is provided, which are offset from one another To be able to accommodate coaxial cable »Furthermore, the clamp brackets 8 with the compression springs 10 are arranged on both sides, as Figo 1 showed

509848/0104

As FIG. 3 shows, the plastic support part 12 is with the sin plug opening 5 and the contact spring 13 "or, the two of which are shaped on each side so that it at the same time, at least the inner conductor pins 15 of the receptacle sockets records. The connection ends, that is to say at least the connection ends 14 and 15, are penetrated by the plastic support part 12 passed through, as shown in FIG. 3, and end in a support plate, in particular a printed circuit board 16, for electrical components and circuit elements that are not shown to simplify the drawing «,

As FIG. 4 shows, however, the plastic support part 12 ^! for the sockets 5 for the inner conductor of the coaxial cable itself as a support plate, in particular a printed circuit board, for the electrical components and circuit elements, "with at least the connection ends 14 of the contact springs 13 and the pins 15 then also in the manner shown in FIG the sockets end on the plastic support part 12 ¹ on the circuit board side.

V / ie from the foregoing description and the drawings, and particularly FIG _o 1 of the drawing can be seen, can use the device according to the invention take place by a simple insertion operation, a terminal of a coaxial cable in terms of both electrical contact as well as to the fastening and command _c It the respective associated leaf spring 10 is deflected against the support plate, so that the clamp bracket 8 moves towards the inside of the socket, and the coaxial cable 3 with its inner conductor 6 can then be plugged into the associated socket 5, with the corresponding prior cutting and stripping the outer conductor 7 of the coaxial cable 3 in the area of the clamp bracket 8, "If the leaf spring 10 is now released, this leaf spring presses the clamp bracket 8 firmly against the outer conductor 7 of the coaxial cable and on the one hand establishes and secures the necessary contact

503848/0104

on the other hand, the coaxial cable in the socket or on the support plate 9 · The tongues 11 of the bracket secure a Contact between bracket 8 and G-ehausewandung and thus seal the cable lead-through opening 2 securely against high-frequency radiation.

In order to monitor the safe introduction of the inner conductor into the respective sockets 5, the Support plate. Viewing window 17 may be provided.

As is already clear from this description, the device according to the invention is not suitable only for such sockets, but also for all electrical devices and in particular electrical housings and especially HP devices that require coaxial cables to be connected. In a small space and before In particular, a device according to the invention can be attached even in places that are difficult to access, since none additional screw connections must be provided and operated with the aid of tools » Both the structure and, above all, the cable connection are extremely simplified, as in particular Pigο 3 shows, the plastic support part can also be used for the inner conductor sockets adapt to the most varied of applications in order to use it for further functions suitable to make * Pur the socket shown offers the device according to the invention has the particular advantage that the protruding from the flush box used Cable ends can already be optimally cut to length and stripped so that they can simply be inserted into the socket 1 to be plugged in "A respective adaptation to any screw terminals Oedgl" is no longer necessary

509848/0104

Fig. 5 shows a further embodiment of the invention, the outer conductor of two / one coaxial cables to simplify both the structure and the contour 3 by a common U-shaped bracket 18 with the help of the otherwise corresponding Pig. 2 constructed and effective Leaf spring 10 'can be pressed against the support plate 9. Depending on the application, it is possible to have more than two To grasp and fix coaxial cables at the same time through such a common clamp bracket associated socket is similar to socket 5 then with the necessary contact springs u ,, like. equipped so that the entire socket the inner conductor 6 of the individual coaxial cables to be determined together records.

Patent attorneys

Dipl.-Ing. Horst Rose DipJ.-lng. Peter Kos el

509848/0104

Claims (15)

DlPL-ING. HORST RdSE DIPL.-ING. PETER KOSEL PATENT LAWYERS 3353 Bad Gandershelm, 1 3. May 1 P.O. Box 129 Hohenhöfen5 Telephone: (05382) 2842 Telegram address: Siedpatent Badgandershelm Our file no. 2167 / 34-8 Hans Kolbe & Co.
Patent application dated May 15, 1974 Patent claims Vi ^ // device for the electrical and mechanical connection of coaxial cables to electrical devices and components with simultaneous strain relief with a contact element for connecting the inner conductor and a contact and fastening element for the outer conductor of the coaxial cable, which can be releasably pressed against the outer conductor, characterized that the contact and fastening element for the outer conductor (7) consists of a clamp (8) which can be displaced against the spring action (10) in the radial direction and when released automatically under the spring action against the cable outer conductor. 2. Apparatus according to claim 1, in which the contact and fastening elements are held on a support plate, characterized in that the clamp is formed from an approximately U-shaped bracket (8,8a), the bracket legs (8a) through the support plate ( 9) and which on the side of the support plate opposite the bracket can be deflected by finger pressure to release the clamp bracket (8,8aJ [against the action of at least one compression spring (10) and when released the inserted coaxial cable (3 _f 7) over the clamp bracket ( 8.8a) presses against the support plate. Rö / Rg, Bank account: Norddeutsche Landesbank, Bad Gandershelm branch, account no. 22.118.970 Postal checking account: Hannover 66715 S09848 / 01JH 3. Apparatus according to claim 2, characterized in that the bracket legs (8a) on the bracket opposite side are connected to at least one compression spring (10) which is worn on the support plate. 4. Device according to claims 2 and 3, characterized in that the compression spring as one on the Support plate (9) supporting and deformable with finger pressure arched leaf spring (10) is formed. 5. Device according to one of claims 1 to 4, wherein the contact and fastening elements in the connection are arranged on a cable feed-through opening in an electrically conductive housing wall, characterized in that that the clamp bracket (8) for the outer cable conductor (7) has resilient tongues (11) which are attached to the inside the housing wall rest resiliently. 6. Device according to one of claims 1 to 5, characterized in that the contact element for the Inner conductor (6) is designed as a socket (5, 12, 13) arranged coaxially with the clamp or with the clamp bracket (8) is. 7. Apparatus according to claim 6, characterized in that the socket (5) for the inner conductor of the Coaxial cable from a plastic support part (12, 12 ·) with an insertion opening for the inner conductor and at least one embedded in the plastic support part and the Inner conductor in the insertion opening contact-making detecting contact spring (13) exists, which at the same time forms the electrical connection contact (14) outside of the plastic support part. 8. Device according to claims 1 to 7 for a Socket for the connection of coaxial cables with a supporting plate for the socket of the socket 509848/0104 t - Front plate and at least one cable insertion opening in a direction perpendicular to the front plate wall of the can body, characterized in that the plastic support member (12) for the or the inner conductor of the \ coaxial cable or coaxial cable is shaped with the insertion opening (5) and the contact spring (13) that it at the same time receives at least the inner conductor pins (15) of the receptacle sockets. ·; 9. Apparatus according to claim 8 for a socket with provided on two opposite walls Cable insertion openings, characterized in that each Insertion opening (2) is assigned a clamp bracket (8) with leaf spring (10) and the plastic support part (12) has both each side is provided with an insertion opening (5) with contact spring (13) assigned to a clamp bracket j is. j 10.Vorrichtung according to claims 8 and 9, characterized in that the connecting ends (14) of the contact spring (13) and the socket sockets (15) through the _; Plastic support part (12) are passed and end in a support plate (16), in particular a printed circuit board, for electrical sow and circuit elements. 11. Device according to claims 8 and 9, characterized in that the plastic support part (12 ¹ ) itself is designed as a support plate, in particular a printed circuit board, for electrical components and circuit elements. 12o device according to one or more of claims 1 to 11, characterized in that the outer conductor or of two or more to be connected coaxial cables (3,6) by a common clamp, a common U-shaped bracket (18) detects or _o against the support plate 9 to be pressed. Patent attorneys Dipl.-Ing. Horst Rose Dipl.-Ing. Peter Kosel 609848/0104 Blank page