DE1202376B - Plug-like connecting element - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

HOIr

German class: 21c-22

1 202 376
T20903VIIId / 21c

October 6, 1961

October 7, 1965

The invention relates to a plug-like connecting element for making a contact between electrical conductors that are provided with the same elements or counter-elements, where the connecting element has a longitudinally slotted, radially resilient tubular part which extends in the axial direction is resiliently connected to a rigid conductor connection part.

Connecting elements which are easily detachable in the manner of a plug are known in many embodiments. You meet however, either does not adequately meet the demands for an extremely low one, at Vibrations largely require constant contact resistance or when using ground contact organs high manufacturing costs. In particular, the majority of shows so far known plug connections only a number of small-area contacts at the contact point, the have point or line contact. Even with high resilient contact pressure, which cause a certain stiffness of the plug connection, the favorable electrical values the cable lug screw or contact cone connections not reached.

The invention is based on the objective of producing a plug-like connecting element to create a contact between electrical conductors that have the same elements or counter-elements are provided, the connecting element having a longitudinally slotted, radially resilient Has pipe part which is resiliently connected in the axial direction with a rigid conductor connection part. That Characteristic of the invention is to be seen in the fact that the contact part of the connecting element with the rigid connecting part is connected by an intermediate piece which has a plurality of slots, which are designed as recesses evenly distributed over the pipe circumference.

As a result, starting from simple tubular components with little manufacturing effort, create a connecting element which is justified in terms of its functional properties Wishes fulfilled. In the case of the plug-type connecting element According to the invention are a longitudinally slotted tubular part with a predominantly radially directed Resilience, furthermore an intermediate piece provided with a plurality of slots and an im essential rigid conductor connection part designed as a one-piece component made of resilient material. Due to the even distribution of elasticity created by the arrangement and design of the Slots or in any other way, e.g. by means of a Ma-plug-like connecting element

Applicant:

Dipl.-Ing. Karl Albert Turban,

Karlsruhe, Hebelstr. 19th

Named as inventor:

Dipl.-Ing. Karl Albert Turban, Karlsruhe

Material weakening that is caused occurs when the plug-type connecting elements are pushed into one another or when making contact with counter-elements, a snug fit with extensive contact on the circumference of the longitudinally slotted pipe part. There are already transversely slits for inclusion certain connecting elements known from plugs, but the essential feature is missing there elasticity evenly distributed over the circumference of the pipe, which facilitates the favorable distribution of the contact pressure in the contact section. A large-area contact occurs with the previously known Versions with a transverse slot are not included, but this is a prerequisite for creating flawless ones Contact connections.

In a further embodiment of the invention, it can be expedient to make the longitudinal slot in the radially resilient To make pipe part at least partially helical. Through this helical Design results in an extension of the slot groove and thereby an improvement in the elastic Properties in the area of the radially resilient pipe part. It can also be useful to use the Longitudinal slot to be toothed at least in sections. Such a toothing, which is already used in so-called Alligator clips are known, increases the application possibilities of the connecting element,

The slots provided on the pipe circumference can also advantageously be designed in a helical manner be. Another advantage can be achieved in that a number of the slots run in opposite directions Has screw pitches. To improve the mating properties, the edge of the Pipe part be appropriately beveled.

The tube part can also be circular, elliptical, spiral or S-shaped or made up of these Have curves combined leading curve. With such a design, the effective con

509 690/340

3 4

increase the tact area. You can also get a particularly good fit and low transitional resistance the contact surface with high current contact. They are for extremely high demands th or designed to produce several contacts coaxial to the contacting. The application arrangements use where several pipe area extends with special connections from parts are nested coaxially. The rigid 5 from subminiature technology to heavy current technology. The connecting part advantageously has an insulating material. The particular advantages of connecting elements on. ten according to FIG. 2 space-saving in the execution

According to an expedient development of the Er bridge connections (short-circuit plug) is located can be indicated on the pipe part, preferably in particular. It should be mentioned that Rich in a zone of uniformly around the circumference ver io the connecting elements according to FIG. 1 also with split slots, resilient claws provided the connecting elements according to FIG. 2 contacted be, which can be with a thread-shaped groove.

an adapted counter element in operative connection F i g. 6 shows a further embodiment of FIG

step. Invention, where the specified connection

In the following, exemplary embodiments of the element are described both for coaxial technology and for

Finding with reference to the schematic drawing, the high-current technology seems meaningful. One

1 to 11 described in more detail: Number of slotted circular pipe parts 1 are in

Fig. 1 shows a connecting element according to the various ways formed from spring steel sheet and Invention, in which a pipe part 1 with a longitudinal slot 2 is fastened coaxially on the rigid base 9. All pipe over an intermediate piece with slots 3 in a rigid 20 parts 1 have a slot 3 equipped, the ren connector passes. The connecting element spring compensation serving Zonell-III and are zwiist I and V are made in one piece from a resilient metal alloy and are cut off at an angle to the cylinder axis. A zone I-II serves the large-area th. Such connecting organs are contacted Making contact, this is followed by a spring - expediently with their peers. In the case of the zone II-III, which are used as a high-current connection, are rigidly used Zone III-IV of the connection part follows. In this pipe parts 1 in the base 9 stiffen together conductively Connection part changes the pipe element when tied. Then there is the advantage that one too Establishing and releasing the connection its shape has the same structure, but with a smaller one not. In zone I-II, the pipe part 1 is intended to be connected to a number of pipe parts its interior located circular cylindrical 30 elements on the connecting element according to FIG. 6th Solid pin of the same outer diameter or can contact. It can be, for example, a create a circular cylindrical rigid socket of the same series of connections such that Quickly nestle inside diameter. There should also be the connection for 50 A only the innermost cylinder It may be possible to use two identical connecting elements, those for 150 A the two innermost According to Fig. 1 over their zone I-II quickly suitable for 35 cylinders, those for 300 A the three inner cylinders, to contact. For this purpose, the connecting element must The connecting element according to FIG. 6 with four cylinders the zone I-II increases in diameter or ultimately forms in the event of a load capacity can spring together, which is the upper limit of the series due to the longitudinal slot 2 of 500 A. All in connection with a type of the series evenly described around the circumference can be individually distributed number of even slots 3 reaches 40 at the largest type in turn contact that lie in the intermediate piece. If the con-stipulation of the current that you want to take. One clocking by plugging in, so is to make this easier - such type series saves the cumbersome Eintern, the connecting member according to FIG. 1 between set of conversion connections and is able to I and V cut off at an angle to the cylinder axis. One of the activities in test fields of heavy current engineering insulating jacket 4, which is shown in section 45 to facilitate considerably.

and ranges from II to IV, enables the touch- In the field of high-frequency technology

safe handling. At 5, the metal wire of a connecting element according to FIG. 6 suitable several

Test lead 6 soldered on. The rear end of the pipe streams separately to transmit coaxially. Straight up

element results in a rigid socket at 7. The compounds used in this area are preferred

Socket 7 is also used for the multiple branch. 50 genes, which are no longer between plug and socket

Another embodiment of the invention differ. The embodiment according to FIG. 6 is suitable

is in Fig. 2 shown. The shown there not only as a cable connection, but also

binding element contains a cylinder piece 8 as a coaxial tube connector, in particular

S-shaped guide curve and is made from the sheet metal of a cylinder cut off in steps, namely so-

well resilient metal alloy made. Furthermore, it is probably too high for high frequencies as well as for high

firmly connected to a rigid base 9 and significant benefits.

sits in a zone serving for spring balancing. Fig. 7 shows an embodiment of the invention

II-III also slots 3 and is to the beginning manure, which as a maximum current connection on the one hand

to make it easier when plugging in, at an angle between I and V and on the other hand as a lockable connection.

cut off to the cylinder axis. The large area 60 is formed. One made of springy sheet metal

Here, too, the contact part lies between I and II. The spiral cylinder 13 is fixed to the rigid base 9

F i g. 3 shows schematically the contacting of a connected. In the one used for spring balancing

Connecting element according to F i g. The slots 3 are provided on a pair of zones II-III. the

solid circular cylindrical pins 10, 11, F i g. 4 on slots 3 are designed in a helical manner

a rigid bush 12 and Fi g. 5 in his own kind. 65 and have half the number of slots opposite

The screw pitches, which are continuous with the connecting elements according to FIG. 2. Between I and V

Equipped electrical connections are against the spiral cylinder 13 is oblique to the cylinder axis

Secured against twisting and characterized by being clipped.

5 6

Two similar spiral cylinders 13 according to FIG. 7, springs 18, which are pressed against the solid body 20 one of which is right-handed, the other left-handed. The connector according to FIG. 9 stands out from the is neatly wound, one can clearly see axially interlocking leaf spring cross connectors to lead. If you then twist the two spirals so that one of the large-area contacts makes the cylinder gently in opposite directions, so press the two 5 ends zone VI-VII, to which both spirals are attached firmly to one another, and as a result of the side of the spring compensation serving zones VI-VIII geometric decomposition of the moderate torsion and VII-IX. With the leaf spring cross connector force between the spiral cylinders 13, on the other hand, one cannot move between such zones neatly high holding forces, which are impossible to distinguish, and only occur there point or make the spiral io small-area contacts by pulling in the axial direction. Sockets according to fig. 8 and to move cylinder 13 apart again. By plug according to FIG. 9 together form a gentle one counter-rotating backwards but relaxed protruding plug connection with extremely low overman effortlessly the spiral cylinder 13 and can reduce the resistance and high vibration resistance, loosen the bond again. The principle according to FIG. 7 is A lockable connector can be used with also with several coaxially arranged spirals, 15 using the connecting elements F i g. 10 (socket) and so with coaxial connections, possible. It allows Fig. 11 (connector pin) to be executed. The socket after a quick connection for highest currents, Fig. 10 being the socket of Fig. 8 so largely Very small dimensions of the connection are similar, that verelemente on a detailed description result. can be drawn. A difference between both

Almost the entire volume of the connection bears 20 den can only be seen in the fact that in Fig. 10 the end here for contact. The intermediate space between springs is designed as spring claws 21. Of the see the spirals can be with gas or liquid solid pen according to Fig. 11 is at 22 with a short Media equipped for the purpose of improved and threaded pull in which the spring claws strong cooling. The resulting 21 (see. Fig. 10) snap into place when plugging. So that can Current heat is no longer exclusively at the 25 of the pin according to FIG. 11 deducted from the entire contacted area. This is done by pulling out of the socket according to FIG. 10 appears especially significant for high current remote. By pulling and right-handed three-way connections, which, however, can be loosened at high ambient temperatures of the pen, door should work, for example with induction ovens and because the spring claws 21 are out of the short pluggable melting electrodes. Because of the extra- 30 thread pull at 22 lift out, ordinary adhesive force of the organs of a connection A socket according to F i g. 8 appears regarding according to FIG. 7 it stands to reason that these are also cheaper than one outside of their electrical properties of the area of electrical contacting as a purely socket according to FIG. 10, because twice as in FIG. 8 to apply mechanical quick connection. many end springs are pressed against the solid body.

The execution to be discussed in the following. Such a disadvantage can be avoided by the

Examples demonstrate the advantageous applicability of the embodiments according to FIG. 8 and 10 loading

ability of the basic principle of the invention even with external ones, as in the case of the embodiment according to FIG. 8th

spoken connectors. between the right-hand end springs 18, respectively

Fig. 8 shows a resilient bushing for circular cylindrical spring claws 21 according to FIG. 10, drical connector, partly in section. The body of the 40 peculiar to all execution socket discussed consists of a tubular body 14 with example it is that, if they are with their peers, Pressed base plate 15 and on the plug side (left) with suitable spring bushings, solid bushings, spring-pressed parts Retaining ring 16. A resilient, thin-pin or solid pin can be contacted, currents walled metal cylinder 17 with longitudinal slot 2 and over snug, softly resilient large-area con-slots 3 is designed 45 clock parts on both sides with end springs 18 transferred. They therefore have lowest det. These end springs 18 are between the pipe transition resistances, highest constancy of the same, body 14 and the base plate 15 on the one hand, the insensitivity to vibrations, the slightest Tube body 14 and the retaining ring 16 on the other hand thermoelectric voltage of the movement and a strong vermit pressed in. Reduced wear on the thin-walled metal cylinder. Compared to the tough The 17 results in one of the large area contacts - 50 resilient small area contacts is soft in the case of the there would be serving zone VI-VII, to which both resilient large contact surfaces the friction side the spring compensation serving zones VI-VIII stress less, whereby the abrasion of the and VII-IX. The thin-walled metal-mostly existing precious metal coating is considerable cylinder 17 is thus resiliently held on both sides is reduced. The remaining abrasion can be in the massive socket body. He can hardly touch the contact path when touching over a large area Insertion of a plug resiliently expand, leaving it and is therefore essentially new again the connector in zone VI-VII is quickly plated over a large area. Instead of the harmful hobein at the clutched. But it can also be observed in certain small area contact with large area boundaries move relative to the socket body and make contact with a compensatory polishing. The one with it Vibrations caused by the plug over the connecting elements according to the invention wear, compensate without making the contact fit cable lug screw and contact cone loosening. Connections can be dispensed with because they are electrical

F i g. 9 shows, in reverse of the principle of goodness achieved, in some respects even over-

F i g. 8 a plug 19, which is met on sockets after. The plug-in connections remain

F i g. 8 can be contacted. A solid body 65 fully achieves its own convenience in handling

20 carries a thin-walled metal cylinder 17 with hold.

Longitudinal slot 2 and slots 3. These thin-walled all of the embodiments discussed are

Metal cylinder 17 ends here on both sides in the end with little material expenditure, simply and inexpensively

to manufacture. It is thus possible to create connecting elements that are not only electrical, but also in terms of the manufacturing price are equal to the connections that can be detached with the aid of tools.

Claims (11)

Patent claims: 1. Plug-like connecting element for making contact between electrical Ladders that are provided with the same elements or counter-elements, the connecting element has a longitudinally slotted, radially resilient tube part, which in the axial direction with a rigid conductor connection part is resiliently connected, characterized in that the contact part of the connecting element connected to the rigid connecting part by an intermediate piece is, which has a plurality of slots that are uniform over the pipe circumference distributed recesses are formed. 2. Connecting element according to claim 1, characterized in that the longitudinal slot (2) of the pipe part (1) is designed at least in sections in a helical manner. 3. Connecting element according to claim 1 or 2, characterized in that the longitudinal slot (2) is toothed at least in sections. 4. Connecting element according to claim 1, 2 or 3, characterized in that the slots (3) are helical in shape. 5. Connecting element according to claim 4, characterized in that a number of Has slots (3) opposite screw pitches. 6. Connecting element according to one or more of the preceding claims, characterized characterized in that the edge of the pipe part (1) to be inserted is beveled. 7. Connecting element according to one or more of the preceding claims, characterized characterized in that the pipe part (1) is circular, elliptical, spiral or S-shaped or has a leading curve combined from these curves. 8. Connecting element according to one or more of the preceding claims, characterized by a coaxial arrangement of several pipe parts (1). 9. Connecting element according to claim 1, characterized in that the rigid connecting part has a known insulating jacket (4). 10. Connecting element according to one or more of the preceding claims, characterized characterized in that at both ends of the longitudinally slotted, radially resilient tubular part (1) one Variety of recesses is provided. 11. Connecting element according to claim 10, characterized in that the tubular part (1), preferably in the area of the recesses (3), resilient claws (21), which with a thread-shaped groove (22) of an adapted connecting element in operative connection step. Considered publications:
German Patent No. 816 111;
French Patent No. 1104117;
French additional patent specification No. 56 397. 1 sheet of drawings 509 690/340 9.65 © Bundesdruckerei Berlin