DE937540C - High vacuum rectifier tubes for high and extremely high voltages - Google Patents
High vacuum rectifier tubes for high and extremely high voltagesInfo
- Publication number
- DE937540C DE937540C DEL12043A DEL0012043A DE937540C DE 937540 C DE937540 C DE 937540C DE L12043 A DEL12043 A DE L12043A DE L0012043 A DEL0012043 A DE L0012043A DE 937540 C DE937540 C DE 937540C
- Authority
- DE
- Germany
- Prior art keywords
- anode
- shielding body
- face
- cathode
- valve 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
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H01J5/06—Vessels or containers specially adapted for operation at high tension, e.g. by improved potential distribution over surface of vessel
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Description
Bei Hochvakuumgleichrichtern mit Glühkathode für hohe und höchste Spannungen ist es bekannt, Anoden mit ebener Stirnfläche und abgerundetem Rand zu verwenden, wobei die ebene Stirnfläche der Glühkathode gegenübersteht. Bei einer derartigen Anordnung treffen durch -Streuwirkung Ladungsteilchen auf die aus Isolierstoff bestehende Gefäßwand und laden diese auf, was zu unerwünschten Nebenerscheinungen führt und - die Sperrspannungsfestigkeit der Röhre herabsetzt. Zur Verhinderung dieser Wandladungen ist es bereits bekannt, den Kathodenheizdraht innerhalb einer zylindrischen oder becherförmigen Anode anzuordnen,- aber auch diese Maßnahme befriedigte bisher nicht die immer höher geschraubten Ansprüche.For high vacuum rectifiers with hot cathode for high and highest It is known to apply voltages to anodes with a flat face and rounded edge with the flat end face facing the hot cathode. At a Such an arrangement hit by scattering effect charged particles on those made of insulating material existing vessel wall and charge it, which leads to undesirable side effects leads and - reduces the reverse voltage strength of the tube. To prevent of these wall charges, it is already known, the cathode heating wire within a to arrange cylindrical or cup-shaped anode, - but this measure also satisfied so far not the increasingly stringent demands.
Die Erfindung betrifft eine Hochvakuum-Gleichrichterröhre mit Glühkathode für hohe und höchste Spannungen, bei der erfindungsgemäß die Kathodenwendel von einem becherförmigen Abschirmkörper umgeben ist; in den die ebene Anodenstirnfläche hineinragt. Um eine weitgehende Streuung zu vermeiden, ist es zweckmäßig, daß der Abstand Kathode-Anodenstirnfläche größer ist als der geringste Abstand des Abschirmkörpers von der Anode.The invention relates to a high vacuum rectifier tube with a hot cathode for high and very high voltages, at which, according to the invention, the cathode coil of is surrounded by a cup-shaped shielding body; in which the flat anode face protrudes. In order to avoid wide spread, it is advisable that the The distance between the cathode and the anode face is greater than the smallest distance between the shielding body from the anode.
Die Figuren zeigen in zum Teil schematischer Darstellung Ausführungsbeispiele der Erfindung. Nach Fig. i ist in dem hochevakuierten Glaskolben i der Kathodenheizdraht 2 in einem becherförmigen Abschirmkörper 3 untergebracht. In den. Becher ist die Anode 4 mit ebener Stirnfläche eingesetzt: Bekanntlich muß bei Hochvakuumglühkathoden-Gleichrichtern für hohe und höchste Spannungen jede Spitzenwirkung vermieden werden. Es dürfen deshalb keine scharfen Kanten vorhanden sein. Aus diesem Grunde sind in den Figuren die Ränder 5 bzw. 6 des Abschirmkörpers und der Anodenscheibe kreisförmig umgebogen.The figures show exemplary embodiments in a partially schematic representation the invention. According to FIG. I, the cathode heating wire is in the highly evacuated glass bulb i 2 housed in a cup-shaped shielding body 3. In the. Mug is that Anode 4 with a flat face is used: As is well known, must in high vacuum incandescent cathode rectifiers any peak effect can be avoided for high and highest voltages. It may therefore there are no sharp edges. For this reason are in the figures the edges 5 and 6 of the shielding body and the anode disk are bent over in a circle.
Fig. 2 zeigt eine weitere Ausbildungsform der Anode. Sie besteht aus einem ebenen Blech, das in der Mitte der Stirnfläche mit einer Ausbuchtung 7 versehen ist, die in den Abschirmkörper 3 hineinragt.Fig. 2 shows a further embodiment of the anode. it consists of a flat sheet metal provided with a bulge 7 in the middle of the end face which protrudes into the shielding body 3.
Bei beiden Anordnungen ist der Abstand a zwischen der Kathode :2 und der Stirnfläche der Anode 4 größer als der Abstand b an der Stelle der geringsten Entfernung des Abschirmkörpers von der Anodenoberfläche. So hat es sich bei der Anordnung nach Fig. 2 als vorteilhaft erwiesen, das Abstandsverhältnis in der Größenordnung von etwa 5 :4 zu wählen, indem beispielsweise der Abständ a = 25 mm und b = 2o mm beträgt.In both arrangements, the distance a between the cathode: 2 and the end face of the anode 4 is greater than the distance b at the point of the smallest distance between the shielding body and the anode surface. In the case of the arrangement according to FIG. 2, it has proven to be advantageous to select the spacing ratio in the order of magnitude of approximately 5: 4, in that for example the spacing is a = 25 mm and b = 20 mm.
Bei der Anordnung nach Fig. 3 schließt die Anodenstirnfläche mit der Wulst des Kathodenabschirmkörpers ab.In the arrangement according to FIG. 3, the anode face closes with the Bulge of the cathode shielding body.
Durch die Ausbildung der Anode nach Fig.2 und 3 wird eine Sperrspannungsfestigkeit über 300 kV erreicht.By designing the anode according to FIGS. 2 and 3, a blocking voltage strength of over 300 kV is achieved.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL12043A DE937540C (en) | 1952-04-09 | 1952-04-09 | High vacuum rectifier tubes for high and extremely high voltages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL12043A DE937540C (en) | 1952-04-09 | 1952-04-09 | High vacuum rectifier tubes for high and extremely high voltages |
Publications (1)
Publication Number | Publication Date |
---|---|
DE937540C true DE937540C (en) | 1956-01-12 |
Family
ID=7259052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL12043A Expired DE937540C (en) | 1952-04-09 | 1952-04-09 | High vacuum rectifier tubes for high and extremely high voltages |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE937540C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1564506B1 (en) * | 1966-08-27 | 1970-08-20 | Philips Patentverwaltung | High voltage high vacuum discharge tubes |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486134A (en) * | 1946-05-21 | 1949-10-25 | Gen Electric | Electric discharge device |
-
1952
- 1952-04-09 DE DEL12043A patent/DE937540C/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486134A (en) * | 1946-05-21 | 1949-10-25 | Gen Electric | Electric discharge device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1564506B1 (en) * | 1966-08-27 | 1970-08-20 | Philips Patentverwaltung | High voltage high vacuum discharge tubes |
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