DE8329717U1 - Power transmission cables such as speaker cables - Google Patents

Description

Ο ·? Β60 KARLSRUHE 4ICCRÖTZIN0EN) · DUR LACHER STR. 31! HIGH-RISE)

AUDlOFLAN

D-7502 Malaeh 1 6950/63 L

Cable to the Le! Exercise transmission, "rte Lautepreeherkabel

The invention relates to a cable sturdy power transmission, such as Loudspeaker cable for connecting a loudspeaker to an amplifier, with at least one conductor and connection elements.

As a connection cable between, for example, an amplifier and A loudspeaker is generally provided with two-core cables, the two cores or conductors being parallel to one another get lost. Such a transmission cable must possibly & a considerable Can transfer power. In addition, there is the problem that in addition to the transfer of power also the information to be transferred, For example, modulated music at the same time as undistorted as possible and should be transmitted undisturbed. The latter is hardly guaranteed with conventional speaker cables, because on the one hand the two conductors influence each other and, on the other hand, they are fully exposed to external interference. This leads to the fact that, for example, transmitted by such a cable and by the loudspeaker played music is corrupted etc. came.

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So far, these falsifications have generally been assigned to the loudspeaker itself. From the inventors of the present On the other hand, it was found that these deficiencies were also to a considerable extent caused by the conventional loudspeaker cables are conditional.

The invention is therefore based on the object of a cable To create the type mentioned at the beginning, which eliminates the mentioned shortcomings and, in particular, enables a high level of power transmission to be transmitted to modulated information as unadulterated as possible.

According to the invention, the above object is achieved in a cable for power transmission in that a conductor from a inner TelI conductor and a surrounding and against it separated by a dielectric outer part conductor consists, wherein inner and outer part conductors are electrically connected to each other at the connection elements.

The conductor structure, which is ring-shaped in cross section and made up of the inner and outer part of the conductor, improves the transmission properties in terms of quantity and quality, namely performance and authenticity achieved · External magnetic field influences, such as interference and influences from the normally present opposite conductor on the inner sub-conductor are practically switched off by the magnetic field shielding of the outer sub-conductor and thus an unhindered transmission of impulses is made possible by the space in between between the two individual conductors, the through a dielectric is filled, is kept free of magnetic fields. This will make the share

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the signal is transmitted to the inner conductor completely undisturbed, while at the same time by splitting into two individual conductors, one being an outer glider, a power transmission guaranteed let. According to a preferred embodiment it is provided that the outer conductor consists of two layers of single strands consists. Through this configuration, the transmission capabilities are • Improved insofar as at least the outer ring conductor is largely flat and not compact, and thus compared to a conventional, compact expansion of a conductor, fewer disturbances of the individual fields occur while at the same time the cross-section or the surface of the outer conductor is redit large and thus, as I said, a large power transfer is possible.

In a further embodiment it is provided that the outer cable is designed as a net-like braid. Another embodiment provides that those usually present in a loudspeaker cable Forward and return conductors are twisted or stranded in order to continue to switch off such inductive influences.

Overall, the advantages according to the invention that have been set out result regarding power transmission and quality of information transmission through the combination of a protected inner conductor and the performance of the outer conductor *.

Further advantages and features of the invention emerge from the claims and from the following description, in which a Exemplary embodiment of the cable according to the invention in detail is muted. It shows:

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Flgur 1 aina embodiment aform that according to the invention

Kabeia in Saitananalcnt, with partially gone • ehnittanan Valley lan}

Figure 2 air »schematleeha Daretallung aina · ß island directed Fig. 1; and

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a section corresponding to MI-III in FIG. 1.

The KaMI 1 according to the invention in the embodiment shown in FIG. 1 has two single conductors, namely alnan Hlnlelter 2 and alnen Gagmodar Backlelter 3, dia each ata twisted or stranded with one another Single cables 4, 6 are formed.

The structure of a single cable β is to be explained with reference to the individual cable 4 · Daa Kabel 4 waiat a central insane part conductor or inner conductor 7, which is surrounded by an insulating dielectric θ. A partial conductor, outer conductor or ring conductor 9, which surrounds the inner conductor 7, is arranged coaxially to the inner letter 7 and dielectric 8. The entire described arrangement 7 to 9 is surrounded by an outer insulation 11 * Inner and outer partial conductors 7 and 9 are now not electrically separated from one another, but are electrically connected to one another in the area of connection elements 12. As a result, the current can flow through both the inner conductor 7 and the outer conductor 9 and thus power can be transmitted through both partial conductors 7, 9, but on the other hand the information to be transmitted, for example the musical information modulated on, is not disturbed, especially on the inner conductor and in not impaired in any way, so that in the same way an optimal information and power transmission, as is required with such loudspeaker cables, is guaranteed.

Those in the above description, in the drawing as well as Features of the invention disclosed in the claims can be implemented both individually and in suitable combinations be essential to the invention.

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Claims (3)

DR. ING. HANS11LIC HTl "'DI PL.-VnG." HEINER LICHTI DIPL.-PHYS. DR.JOST LEMPERT PATE NTAN WALTE D-7S00 KARLSRUHE 41 (CROTZINGENI DUR LAC H ER STR. 31 (HOCH H AUS) TELEPHONE (0721) 485Π AUDIOPLAN Renate Kühn Postfach 1107 October 13, 1983 D-7502 Maisch 1 6950/83 Le MAN'S CHALLENGES 1. Cable for power transmission, such as speaker cable for Connection of a loudspeaker to an amplifier, with at least one conductor and connection elements, thereby characterized in that a conductor from an inner part head (7) and an outer conductor (9) surrounding it and separated from it by a dielectric, inner and outer sub-conductors (7, 9) on the connection elements (12) are electrically connected to each other. 2. Cable according to claim 1, characterized in that the outer conductor (9) consists of two layers of individual strands. 3. Cable according to claim 1 or 2, characterized in that the outer Tel Heiter (9) designed as a net-like braid is. ti lilt It Cable according to Claims 1 to 3, characterized in that the inner conductor (7) consists of islands. Cable according to one of the preceding claims, characterized in that two of the inner and outer part conductors existing conductors (4, 6) are twisted or stranded with one another in isolation from one another. Cable according to one of Claims 2 to 5, characterized in that the wires on the individual conductors are silver-plated. (· ■) ■ Ii > ■ iill I ···· • · f I Il I · • ·· «III Il I Ml ·