DE600018C - Electron tubes, in particular high vacuum tubes, with an electrode holder resiliently mounted in the axial direction - Google Patents
Electron tubes, in particular high vacuum tubes, with an electrode holder resiliently mounted in the axial directionInfo
- Publication number
- DE600018C DE600018C DES95237D DES0095237D DE600018C DE 600018 C DE600018 C DE 600018C DE S95237 D DES95237 D DE S95237D DE S0095237 D DES0095237 D DE S0095237D DE 600018 C DE600018 C DE 600018C
- Authority
- DE
- Germany
- Prior art keywords
- electrode holder
- axial direction
- tubes
- high vacuum
- electron tube
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
Landscapes
- Electron Sources, Ion Sources (AREA)
Description
Die Erfindung betrifft Elektronenröhren, insbesondere Hochvalniumröhren, mit in axialer
Richtung federnd gelagertem Elektrodenhalter, beispielsweise Glühfadenspanner.
Bei Glühkathoden von Elektronenröhren erweist es sich, namentlich, wenn die Elektronenröhren
mit hoher Spannung betrieben werden, als notwendig, den Heizfaden mechanisch zu spannen, da er sonst durch, die
Querkräfte, die von dem elektrostatischen Felde zwischen Anode und Kathode auf ihn
ausgeübt werden, aus seiner richtigen Lage gebracht wird. Es ist deshalb wesentlich, daß
die glühenden Kathodenteile einerseits vor den starken Feldkräften geschützt werden und
daß andererseits ein Ausgleich der durch, die thermische Beanspruchung verursachten
Änderungen der Länge und der Plastizität des glühenden Materials beim Bau der Hochvakuumröhre
erzielt wird. Es wurde deshalb bereits vorgeschlagen, die Elektrodenhalter bzw. Glühfadenspanner in axialer Richtung
federnd zu lagern. Die bisherigen Anordnungen hatten jedoch den Nachteil, daß während
des Betriebes in der Querrichtung auftretende Kräfte die Elektronenhalterung und
die Elektrode in solchem Maße beanspruchen, daß die Lebensdauer der Elektronenröhren
verhältnismäßig gering war.The invention relates to electron tubes, in particular high-valnium tubes, with an electrode holder, for example a filament tensioner, which is resiliently mounted in the axial direction.
In the case of hot cathodes of electron tubes, especially when the electron tubes are operated with high voltage, it turns out to be necessary to mechanically tension the filament, as otherwise the transverse forces exerted on it by the electrostatic field between anode and cathode, is brought out of its correct position. It is therefore essential that the glowing cathode parts are protected from the strong field forces on the one hand and that the changes in the length and plasticity of the glowing material caused by the thermal stress during the construction of the high vacuum tube are compensated for. It has therefore already been proposed to mount the electrode holder or filament tensioner in a resilient manner in the axial direction. The previous arrangements, however, had the disadvantage that forces occurring in the transverse direction during operation stress the electron holder and the electrode to such an extent that the life of the electron tubes was relatively short.
Gemäß der vorliegenden Erfindung werden die erwähnten Nachteile dadurch behoben, daß der Elektrodenhalter auch quer zu seiner axialen Richtung federnd gelagert wird. Der Elektrodenhalter kann zu diesem Zweck von einer an ihren Enden an dem Elektrodenhalter befestigten Schraubenfeder umgeben sein, die an dem zwischen ihren Enden liegenden Teil durch an sich, gegenüberliegenden Stellen und in radialer Richtung verlaufende, an feststehenden Teilen der Röhre befestigten Teilen gehaltert wird. Es empfiehlt sich, die Schraubenfedern zwischen an dem Elektrodenhalter befestigten teBerartigen Muffen anzubringen und gegebenenfalls über Federn mit feststehenden Elektrodenhaltern zu verbinden. Die die Schraubenfedern haltenden Federn befestigt man beispielsweise mittels Schellen an den feststehenden Elektrodenhaltern. According to the present invention, the disadvantages mentioned are eliminated by that the electrode holder is also resiliently mounted transversely to its axial direction. For this purpose, the electrode holder can be attached to the electrode holder at its ends fastened coil spring be surrounded, which on the part lying between their ends by per se, opposite Place and extending in the radial direction, attached to fixed parts of the tube parts is supported. It recommends the coil springs between tar-like elements attached to the electrode holder To attach sleeves and, if necessary, by means of springs with fixed electrode holders connect to. The springs holding the coil springs are attached, for example using clamps on the fixed electrode holders.
Die neue Anordnung bietet den Vorteil, daß während des Betriebes der Elektronenröhren auftretende Stöße von den federnden Lagern restlos aufgenommen werden und sich so weder an den Halterungsteilen noch an dem Glühfaden schädlich auswirken können.The new arrangement has the advantage that during operation of the electron tubes occurring shocks are completely absorbed by the resilient bearings and so neither on the holder parts nor on harmful to the filament.
In der Zeichnung ist ein Ausführungsbeispiel dargestellt.An exemplary embodiment is shown in the drawing.
Abb. ι zeigt einen Längsschnitt durch eine Hochvakuumröhre undFig. Ι shows a longitudinal section through a high vacuum tube and
Abb. 2 einen Längsschnitt senkrecht dazu.Fig. 2 is a longitudinal section perpendicular to it.
Die Glühkathode mit der zugehörigen Halterungsvorrichtung besteht aus den beiden zueinander parallelen Heizfäden 1 und 2, die an zwei Halterungsstäben 3 und 4 angeschlos-The hot cathode with the associated mounting device consists of the two heating filaments 1 and 2 parallel to each other, which are connected to two support rods 3 and 4.
600OiS600OiS
sen sind, über die auch, der Heizstrom zu- und abgeführt wird. Die beiden Halterungsstäbe durchdringen an den Einschmelzstellen 5 und 6 die Gefäßwandung. Zur Spannung des Glühfadens sind ein Stab 7 und Federn 8 vorgesehen. Die Federn 8 wirken als Zugfedern auf den Stab 7, an dem Schellen 9 befestigt sind, mit denen er an einer Feder 10, die über elastische Verbindungen 11 mit den Halterungen 3 verbunden ist, befestigt ist.which are also used to supply the heating current and is discharged. The two retaining rods penetrate the melt-down points 5 and 6 the vessel wall. A rod 7 and 7 are used to tension the filament Springs 8 provided. The springs 8 act as tension springs on the rod 7 on the clamps 9 are attached, with which he is attached to a spring 10, which has elastic connections 11 is connected to the brackets 3, is attached.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES95237D DE600018C (en) | 1929-11-27 | 1929-11-27 | Electron tubes, in particular high vacuum tubes, with an electrode holder resiliently mounted in the axial direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES95237D DE600018C (en) | 1929-11-27 | 1929-11-27 | Electron tubes, in particular high vacuum tubes, with an electrode holder resiliently mounted in the axial direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE600018C true DE600018C (en) | 1934-07-13 |
Family
ID=7519232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES95237D Expired DE600018C (en) | 1929-11-27 | 1929-11-27 | Electron tubes, in particular high vacuum tubes, with an electrode holder resiliently mounted in the axial direction |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE600018C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE932859C (en) * | 1951-07-17 | 1955-09-12 | Philips Nv | Metal discharge tubes for very short waves, with a glass protective cap surrounding one or more supply lines melted into the wall |
-
1929
- 1929-11-27 DE DES95237D patent/DE600018C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE932859C (en) * | 1951-07-17 | 1955-09-12 | Philips Nv | Metal discharge tubes for very short waves, with a glass protective cap surrounding one or more supply lines melted into the wall |
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