DE1967764U - COIL ARRANGEMENT WITH TWO WINDINGS ATTACHED TO EACH OTHER ON A FERROMAGNETIC CORE. - Google Patents

Description

P.A.Ö03 065 * - /.!.

Dipl.-Ing. KORST OUER

Pafar.ranwdi
A ^ ffis'ilcr: philips Pateniverwaliung GmbH.

File: PHD- 979
dated Jan. 6, 1967

! Philips Patentverwaltung GmbH .. ", 2 Hamburg 1, Monckebergstrasse 7

'"Coil arrangement with two on a ferromagnetic core side by side windings ".

The hiring refers to a coil arrangement with two side by side on a ferromagnetic rod or tube core attached windings, especially antenna symmetry transformers

Bs are antenna symmetry transmitters close to the so-called Guanella attitude known, the two windings of which are applied to a rod or Eohrkern made of Weiehmagrietisehem ferrite are. Here, however, the coupling between the two windings is very large, so that this transformer is relatively poor Have symmetry properties with otherwise good damping and Reflection behavior "

There are also known antenna transmitters in which the two Windings each through a hole in a double hole core Ferrite .are. These transformers are technically good, ** can only be made by hand.

♦ * Tuck head parts are mentioned at the beginning of a coil arrangement Avoided kind according to the furnace by the fact that the windings with a see over them both extending envelope are covered from magnetised ferrite material.

Here are the technical advantages of the embodiment

PHD- 979

(EV-2754) -. ■ ■ »2 -

lr / 8 -

with lGppelloehkern and the borrowed windability of the Rod «or tubular core design combined with one another. Due to the sicla over both windings extending sheath made of magnetized magnetism Ferrite material becomes the line path in each of the windings practically closed, so that hardly nor can scatter lines from one weighing reach the other and thus an excessive magnetic coupling of the two windings is avoided * The ferrite sleeve also increases the inductivity of the windings *

Preferably, the magnetically soft ferrite material is in G-ummi © the plastic embedded »

The plastic-bound jerrican sleeve is useful elastisoh.

The sprayed-on cover made of rubber or plastic-bound Ferrite can completely surround the windings

:. . _. ■ '- ■ _ "■ ;; ■'. '""-.; -: - ■ ,. ■" ■ \ _ -.; / G-em According to a preferred embodiment of the innovation, the shell consists of one over the windings Slid longitudinally seated ears made of rubber or plastic-bonded ferrite. Here, the longitudinally slotted tube is preferably placed on the windings in such a way that the feed wires of the windings, which extend transversely to the coil axis, protrude through the pipe contactor ^: -

Also the rod * or tube core on which the windings are can be made from gmmmi-© the plastic-bonded ferrite stand *

The innovation is now shown on the basis of one in the drawing Embodiment explained in more detail

Figure 1 shows a ^ longitudinal section through a coil arrangement

■ ** 3

according to the innovation along line I-I of Figure 3 »

FIG. 2 is a "section through the coil assembly of FIG. 1 along the line U-II.

FIG. 3 is the side view of FIG.

The illustrated coil arrangement is an antenna symmetry transmitter according to the so-called- .. © uanella-Sehaltumg * Meser transmitter consists of two hifilaren Windings T and. 2, which are on the ends of a rod core 3 made of magnetized "ferrite, especially ÜTiekel" zinc ferritej are appropriate- ·. The upstream isolated from each other extension wires T to 12 of weighing lengths 1 and 2 extend, look in one plane towards the coil axis.

To decouple the two windings 1 and 2, a ferromagnetic sheath 5 in the form of a longitudinally slotted tube is pushed over them in such a way that the feed lines 7 to 12 of the windings 1, which extend transversely to the coil axis, protrude through the tube contactor 6, which simultaneously fixes them Feed wires done. The longitudinally seated tube 5 consists of rubber or plastic-bonded ferrite, eg * of 9 © G-ew. % Hiekel zinc ferrite powder and 10% by weight of thermoilastic plastic with a toroidal core permeability of about 10 * Due to the relatively high proportion of plastic, the slotted tube is elastic, so that it grips over the windings T ^ and 2 in a resilient manner. The length of the tube 5 preferably corresponds approximately to the length of the rod core 3 *

-.... ■■ - ■■ - - ■ ·

In practice, a 60 SL coaxial line is connected to the feed wires 9 and 10 * Me feed wires 7 and 12- are connected to one another and form the center of symmetry that may be earthed. In the Zufthr-angsdrraht 8 and

a balanced cable © is used for the inputs of a tuner or a dipole antenna with a wave impedance of 240 JL connected

Sweetness claims:

Claims (5)

Eye protection requirements: 1 · Coil arrangement with two on one ferromagnetic see Bar or tube core windings attached next to one another, in particular Anteimen symmetry transfer ^ he, characterized in, that the windings (1 "and 2) with a si oh fber they both extend sheath (5) made of magnetized perrit material "are concerned. 2. Coil arrangement according to Ansprmeli 1, marked by Dadurek, that the white magnetic Perritmaterial in Guiami or Plastic is embedded. 3 » Coil arrangement according to claim 2, characterized in that the rubber © the plastic-bound ferrite sleeve (5) is elastic» 4. Spialenanordmiiuig according to claims 2 or 3 »thereby characterized in that the sprayed-on sheath (5) made of rubber or plastic-bonded ferrite weighs; (1 and 2) completely surrounds. 5. coil arrangement according to claims 2 or 3 »thereby characterized in that the sheath consists of one over the windings pushed longitudinally slotted tube (5) made of rubber or plastic bonded Ferrite is made. 6 «coil arrangement according to claim 5» characterized in that that the longitudinally seated drill (5) is placed on the windings (1 and 2) in such a way that they look transversely to the coil neck extending guide wires (7 to 12) of the windings protrude through the pipe slot (6). 7 «Spnlenaiiortnmng after a de ^ Isisiierigeii insprolie, dadiarcli gekennze ± eliH.et that auek: the S-feaTb or tube core (3) Ordered from gtunmi- © der KTMst ^ toffgelDiamteifiem ferrite.