DE1926268U - SELF-INDUCTION COIL OF CHANGEABLE INDUCTIVITY WITH TAPS DISTRIBUTED OVER THE LENGTH OF THE WINDING. - Google Patents

Description

MO30726 3/31/65

T E L S F U N K KN

Patent collecting society

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U Xm / Danube
Bliaabethenstr «3

^{En / La} ['. ■' ■■ '■': ■■ '■ -Si AKtrn 1965

Self-induction coil with variable inductance via the Length of the winding distributed taps

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The innovation relates to a self-inducting <m @ coil ver » Changeable inductance is distributed over the length of the winding Tapped, parts of the winding can be short-circuited over «rich by means of switching contacts and switches«

l £ a self-induction @ pul @ of the specified type can preferably in the resonant circuit of a high-frequency transmitter amplifier be used, which is used for setting to different working frequencies @ n a changeable inductance required · by the Innovation results in an advantageous and space-saving con « construction with good electrical properties.

The self-induction coil is thus in accordance with the innovation marked »that the center line of the coil conductor is a forms a flat spiral and the taps carrying switch contacts at their ends facing away from this plane are perpendicular

the coil plane-.and are arranged in alignment with one another along a straight line parallel to the coil plane, and that a switch axis that can be rotated about parallel to the straight line deceives it "which, when it drifts in succession with the switching clocks "the taps come in Kingriff",. . . \. . .

According to a further refinement of the "innovation, the Einseiwindungen / de-r coil in approximation on the sides one inside the other, in essence, li: ch @ rs similar rectangle © « The coil conductor can consist of flat ribbon material, and di @ great. Areas of the Band Material®. be able . to the -Spuleneben® stand vertically, ». . - '..;.

Foraugsweis © contains each switching contact for safe contact «= there would be a pair of contact springs and the two springs of a pair press their contact elements with bias in the idle state against each other, so that they intervene when the associated Kontaktsegaient @ s are "cut open" by this are the lion clock feathers of a pair outwards from what are known as Spray hat »caps shielded. The contact segments of the switch are thereby through the common - »- electrically conductive ■ switch« = shaft to each other and to the ground connection of the arrangement

connected. - - "'" ■ - ■. . ,

The innovation will hub with reference to the © drawing described in more detail «- -

Fig. 1 shows a perspective view of the äpulenanord * - with the switch »whereby insignificant for the innovation Parts only indicated in their outlines or omitted "Fig. 2 shows a section through a contact spring = pair of a tap with the spherical spray protection caps,

In Figure 1 _e are di © side plates 1 and 2 by three ceramic * - rods 3 together .verbundene in the plates 1 and 2 Imt di © shaft 4 of electrically conductive material supported ,, what the © © iiont akts gmeat e carries out. 5 These ^ are arranged so that when the Schaitterwe-11-e 4 is rotated, they come into engagement one after the other with the switching contacts of the taps β and short-circuit parts of the coil winding one after the other. The large area of the switching segments is favorable because it ensures good cooling of the contacts. The contact segments 5 are conductively connected via the electrically conductive shaft 4 and the side plates I and 2 to the ground connection of the entire arrangement. on, whereby a good cleaning of the oomtakt »surfaces is achieved» From Fig. 2 it can be seen * that the

Spray shoe caps $ each * pair of springs, electret to the outside

statically shield and thus protect against spray carriages and in addition, the immediate capacities »wipe 4en Decrease coil taps · The parts of the taps 8 are mechanically τοη the two lower ceramic rods 3 held. In addition, the coil winding; with their individual turns attached to the taps 8 «

From Fig. 1 it can be seen that the coil conductor IO consists of Plachbanduuiterial which, with its large surfaces perpendicular to the coil plane, is wound up in the form of a spiral j whose individual turns have the "outlines, are superimposed, similar to each other" rectangles therefore .'öie coil forms a stable base for the whole construction _9, whereby not only the low Kauinbedarf _β but also -. the large mechanical and electrical stability results _β "_ ■ the taps 8 at the individual coil turns an axis in alignment longitudinally arranged .,. which lies parallel to the coil plane and which is also parallel to the switch axis x ~ x «

The illustrated coil arrangement can be used in a shielding housing if necessary.

Claims (6)

A-BO 30 726 31 3.65 β. 5 ■ · S e h α t s a ο. θ. ρ r ü e h e 1) Self-induction coil of variable inductance with taps distributed over the length of the v / ioklung, via which the winding can be short-circuited using sehaltkontakt © and switch feil © ₉ characterized in that the center line of the coil conductor (10) forms a flat spiral and the their ends facing away from this plane, holding contacts (6), project perpendicularly out of the coil plane and align with one another along a 25U3? Coil plane are arranged parallel straight lines, uad that © in around a to d @ a? called straight parallel axis (xx) rotatable switch carries contact segments (5) which come into engagement one after the other with the switching contacts (β) of the taps when it is rotated. 2) coil naoh claim 1 «characterized in that their Convolutions in approximation on the sides of "lying" pike toke, essentially similar to one another lie" . 3) coil after anaprueh 1 wire 2, characterized in that the Coil conductor (10) consists of flaehbandmaterial and the large areas of the strip material on the reel plane perpendicular stand" - ■ 6 ■ - ■ 4) coil according to one of claims 1 to J ₂ thereby characterizedυ that each switching contact is a contact spring pair (69?) And the two feathers of a pair Your contact elements in the cow country with MTor tension press against each other ^ so that they! Intervention of the associated contact segment (5) "cut open" by this will" · - ' - .: / .. - 5) coil according to claim 4 _? dadu2? eli gelceinizeiohnet _r that the contact springs are shielded by a pair near the outside of spray head caps (9) siad *. '~ ■■■ .. ■; "-.- ..:"; ■ - "". 6) coil Naeh one of INAP rüehe 1 ".. to ₉ -S -dadurch / gekennseiehnet _s AaB the contact segments (5) du ^ oh dljg common, electrically-conductive Sehalt © rwelle (4) ■■ '" -untereinander and are connected to the ground connection of the arrangement ₀ - - _ '