DE648266C - Disk-shaped spacer made of mica for air-space-insulated high-frequency lines - Google Patents
Disk-shaped spacer made of mica for air-space-insulated high-frequency linesInfo
- Publication number
- DE648266C DE648266C DEM133616D DEM0133616D DE648266C DE 648266 C DE648266 C DE 648266C DE M133616 D DEM133616 D DE M133616D DE M0133616 D DEM0133616 D DE M0133616D DE 648266 C DE648266 C DE 648266C
- Authority
- DE
- Germany
- Prior art keywords
- mica
- metal
- rings
- edges
- conductors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000010445 mica Substances 0.000 title claims description 19
- 229910052618 mica group Inorganic materials 0.000 title claims description 19
- 125000006850 spacer group Chemical group 0.000 title claims description 11
- 239000002184 metal Substances 0.000 claims description 18
- 239000004020 conductor Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims 2
- 239000012212 insulator Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1834—Construction of the insulation between the conductors
- H01B11/1856—Discontinuous insulation
- H01B11/186—Discontinuous insulation having the shape of a disc
Landscapes
- Inorganic Insulating Materials (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Insulated Conductors (AREA)
- Insulating Bodies (AREA)
Description
Bur. fed. Eigen-Bur. fed. Own
2 1 AUG. 19372 1 AUG. 1937
AUSGEGEBEN AM
27. JULI 1937ISSUED ON
JULY 27, 1937
Die Erfindung betrifft einen scheibenförmigen Abstandhalter für luftraumisolierte Hochfrequenzleitungen zum Gebrauch bei sehr hohen Frequenzen.The invention relates to a disc-shaped spacer for air space insulated High frequency cables for use at very high frequencies.
Ausgedehnte Versuche mit verschiedenen Abstandhalten! aus .Porzellan und anderen keramischen Materialien haben gezeigt, daß bei sehr hohen Frequenzen große Verluste auftreten und daß insbesondere die dielektrischen Verluste so groß. sind, daß die erwähnten Isolatoren nicht brauchbar waren. Glimmer ist bekanntlich in diesem Punkte wesentlich besser und ist daher als Isolator für Ultrahochfrequenz mit Vorteil vorgeschlagen worden. In diesem Zusammenhang kann aber erwähnt werden, daß Glimmer in mechanischer Hinsicht nicht leicht zu Abstandhaltern verarbeitet werden kann, die dabei eine genügende mechanische Festigkeit besitzen.Extensive experiments with different distances! made of porcelain and others ceramic materials have shown that large losses occur at very high frequencies and that in particular the dielectric losses are so great. are that the mentioned Isolators were not usable. As is well known, mica is much better in this respect and has therefore been proposed with advantage as an isolator for ultra-high frequency. In this However, it can be mentioned that mica is not easy mechanically can be processed into spacers that have sufficient mechanical strength own.
Die Erfindung befaßt sich daher mit der konstruktiven Ausbildung eines scheibenförmigen Abstandhalters aus Glimmer für luftraumisolierte Hochfrequenzleitungen, der mechanisch fest ist, dabei aber einfach und wirtschaftlich in der Herstellung ist.The invention is therefore concerned with the structural design of a disk-shaped Spacer made of mica for air-space-insulated high-frequency lines that mechanically is solid, but is simple and economical to manufacture.
Erfindungsgemäß besteht der scheibenförmige Abstandhalter aus mindestens zwei in der Mitte durchbohrten, senkrecht oder annähernd senkrecht zur Richtung der zu. isolierenden Leiter stehenden dünnen Glimmerscheiben, die beide am äußeren und inneren Rand in je einen Ring oder in ein Rohrstück eingefaßt sind. Die metallischen Teile sind so geformt, daß die Glimmerplatten hochkant oder annähernd hochkant zwischen ihnen eingespannt sind.According to the invention, the disc-shaped spacer consists of at least two in the middle pierced, perpendicular or approximately perpendicular to the direction of the to. insulating conductor standing thin mica discs, both of which are bordered on the outer and inner edge in a ring or in a piece of pipe. the metallic parts are shaped so that the mica plates are edgewise or almost edgewise are clamped between them.
Vorzugsweise sind die beiden Glimmerplatten ringförmig und so angeordnet, daß sie an ihrem äußeren Umfang aneinander anstoßen, während sie an ihren ,inneren Bohrungen voneinander distanziert sind. Der äußere Umfang kann durch eine in dem äußeren metallischen Teil eingefräste Nut oder auf andere Weise befestigt sein. Der innere Teil der Glimmerplatten, der den inneren metallischen Teil umgibt, ist so befestigt, daß die Glimmerplatten in der Mitte voneinander entfernt sind und zwischen innerem und äußerem Metallteil einen Luftraum frei lassen.Preferably, the two mica plates are annular and are arranged so that they are on their outer circumference abut one another, while they abut one another at their inner bores are distant. The outer circumference can be milled into the outer metallic part through a Be grooved or fastened in some other way. The inner part of the mica sheets that make up the inner metallic part surrounding it is attached so that the mica plates are in the middle of each other are removed and leave an air space between the inner and outer metal part.
An Hand der Figuren soll die Erfindung näher beschrieben werden. Die Fig. 1 und 2 zeigen eine Ausführungsform des Abstandhalters im Querschnitt und im Längsschnitt. 1 ist ein kurzes metallisches Rohrstück, dessen äußerer Durchmesser an den beiden Enden verkleinert ist, so daß zwischen den Enden xa ein Mittelteil xb von größerem Durchmesser ist. Die beiden Enden des Rohrstückes können mit Gewinden versehen sein. Der äußere metallische Teil besteht aus einem X-förmigen Ring oder wie in der Figur aus einem Ring 2 mit L-f örmigem Querschnitt mit einer schrägen Kante und einem Ring 3, der ebenfalls eine schräge Kante hat und so geformt ist, daß er auf den Ring 2 aufgeschraubt werden kann, wie die Fig. 2 zeigt. Die schrägen Kanten der beiden Ringe stehen ein-The invention is to be described in more detail with the aid of the figures. 1 and 2 show an embodiment of the spacer in cross section and in longitudinal section. 1 is a short metal pipe section, the outer diameter of which is reduced at the two ends, so that between the ends x a there is a central part x b of larger diameter. The two ends of the pipe section can be provided with threads. The outer metallic part consists of an X-shaped ring or, as in the figure, of a ring 2 with an Lf shaped cross-section with an inclined edge and a ring 3, which also has an inclined edge and is shaped so that it fits onto the ring 2 can be screwed on, as FIG. 2 shows. The sloping edges of the two rings are
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB563535A GB446549A (en) | 1935-02-21 | 1935-02-21 | Improvements in or relating to electric insulators for use on very high radio frequencies |
Publications (1)
Publication Number | Publication Date |
---|---|
DE648266C true DE648266C (en) | 1937-07-27 |
Family
ID=9799774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM133616D Expired DE648266C (en) | 1935-02-21 | 1936-02-22 | Disk-shaped spacer made of mica for air-space-insulated high-frequency lines |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE648266C (en) |
GB (1) | GB446549A (en) |
-
1935
- 1935-02-21 GB GB563535A patent/GB446549A/en not_active Expired
-
1936
- 1936-02-22 DE DEM133616D patent/DE648266C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB446549A (en) | 1936-05-01 |
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