DE1943739C3

DE1943739C3 - Character-indicating gas discharge tube based on the glow light principle

Info

Publication number: DE1943739C3
Application number: DE19691943739
Authority: DE
Inventors: Guenther V. Dr. Foerster; Guenther Peppel
Original assignee: Licentia Patent Verwaltungs GmbH
Current assignee: Licentia Patent Verwaltungs GmbH
Priority date: 1969-08-28
Filing date: 1969-08-28
Publication date: 1974-08-08
Also published as: DE1943739B2; DE1943739A1

Description

3 43 4

durch Schweißen befestigt sein, oder aber es ist auch Sind die Ziffern verhältnismäßig groß und schwer,be fastened by welding, or it is also the digits are comparatively large and heavy,

möglich, daß die Ziffer 2 die Durchführung 3 und der so kann es zweckmäßig sein, sie an ihrem oberenpossible that the number 2 implements 3 and so it may be useful to put them at their top

Halterungsansatz 10 aus einem Teil besteht. Ende nochmals zu haltern. Zu diesem Zwecke ist anBracket attachment 10 consists of one part. To hold the end again. For this purpose is on

Der Sockel 4 kann aus einem Preßglassockel oder der Ziffer 2 nochmals ein Halterungsansatz 10 vorgeaus einen Quetschfußsockel bestehen und ist 5 sehen, der wiederum in eine Öffnung eines Isolierüblicherweise in Glas ausgeführt. teils 8 hineinragt. Die Öffnung dieses Isolierteils S istThe base 4 can be made of a pressed glass base or the number 2 again a mounting attachment 10 vorgeaus consist of a pinch foot base and can be seen 5, which in turn is usually in an opening of an insulating executed in glass. partly 8 protrudes. The opening of this insulating part S is

Um die Lage der Ziffer bezüglich der Lage der gemäß eines bevorzugten Ausführungsbeispiels der Ziffer 2 und der anderen Ziffer zu justieren, ist ge- Erfindung ebenfalls derart ausgebildet, daß ein ermaß der Erfindung innerhalb der Röhre ein Form- weiterter Teil 11 und ein den Fortsatz 10 eng umteil5 aus Isoliermaterial vorgesehen, durch dessen io schließender Teil 9 vorgesehen sind. Der erweiterte Öffnung die Zuführung 3 der Ziffer 2 hindurchge- TeU 11 der Öffnung ist der Ziffer 2 zugewandt und führt ist j_st wiederum so bemessen, daß er einerseits denIn order to adjust the position of the number in relation to the position of the number 2 and the other number according to a preferred embodiment example, the invention is also designed in such a way that a form-widening part 11 and the extension 10 are part of the tube closely umteil5 made of insulating material, through the io closing part 9 are provided. The widened opening, the feed 3 of the number 2 through TeU 11 of the opening faces the number 2 and leads is j _st again dimensioned so that it on the one hand the

Die Öffnung in dem Formteil S weist eine unter- Fortsatz 10 möglichst nicht berührt, so daß ein Ringschiedliche lichte Weite auf, wobei der der Ziffer 2 spalt entsteht, der andererseits nicht so groß ist, daß abgewandte Teil 6 der Öffnung die Zuführung 3 15 das Glimmen in diesen eindringen kann,
möglichst eng anliegend umgibt und der der Ziffer2 In der Fig. 2 ist eine Aufsicht auf ein erfindungszugewandte Teil der Öffnung eineir derart erweiter- gemäßes Formteil dargestellt, das 11 Öffnungen auften Querschnitt besitzt, daß möglichst keine Beruh- weist, das also in der Lage ist, 11 ziffernförmige Karung der Zuführung 3 und der Innenwandung der thoden bezüglich ihres Abstandes festzulegen. Dieses Öffnung stattfindet. Dieser Ringspalt zwischen dem ao Formteil 5 aus Isoliermaterial besitzt Öffnungen, die Isolierteil 5 und der Durchführung 3 soll aber auf der wiederum aus einem erweiterten Teil 7 und einem die anderen Seite so gering sein, daß ein Glimmen der Zuführungen eng umschließenden Teil 6 bestehen.
Zuführung 3 innerhalb dieser Öffnung nicht möglich Gegebenenfalls kann es auch zweckmäßig sein, an ist. Man erreicht dies dadurch, daß man diesen Ring- Stelle eines einzigen Formteils 5 für jede Durchfühspalt verhältnismäßig schmal ausbildet. Es ist zweck- 35 rung ein eigenes Formteil vorzusehen, dessen Öffmäßig, den Abstand zwischen der Innenwand des nung gemäß der Erfindung ausgebildet ist, bevorzugt Öffnungsteils 7 und der Durchführung etwa wird man aber Formteile mit mehreren Öffnungen < 1,0 mm zu wählen. Diesem erweiterten Teil 7 der wählen, da hierdurch eine bessere Justierung der einÖffnung kommt auch die Bedeutung zu, zu verhin- zelnen Kathoden erzielt wird. Als Material für das dem, daß sich etwa auf der Oberfläche des Form- 30 erfindungsgemäße Formteil wird Glas oder bevorteils 5 niederschlagendes Metall in leitende Verbin- zugt Keramik gewählt. Bei einem bevorzugten Ausdung mit der Zuführung 3 gelangt. Bevorzugt ist da- führungsbeispiel wird dieses Formteil 5 auf dem Sokfür Sorge zu tragen, daß der erweiterte Teil 7 der kel 4 der Röhre noch befestigt, beispielsweise indem Öffnung in dem Formteil 5 länger ausgebildet ist als man den Spalt 12 zwischen dem Formteil 5 und dem der eng an der Durchführung anliegende Teil 6 der 35 Sockel 4 mit einer Kittmasse, ζ B. einer keramischen öffnung. Kittmasse, ausfüllt.The opening in the molded part S has a lower extension 10 as far as possible not touched, so that a ring of different clear width, the gap of the number 2 is created, which on the other hand is not so large that facing away part 6 of the opening the feed 3 15 the Glow can penetrate into these,
As closely as possible and surrounds the number 2. In FIG. 2, a plan view of a part of the opening facing the invention is shown a shaped part which is expanded in such a way that has 11 openings in cross-section so that there is as little rest as possible, which is therefore capable , 11 figure-shaped Karung of the supply 3 and the inner wall of the method with respect to their distance. This opening takes place. This annular gap between the ao molded part 5 made of insulating material has openings, but the insulating part 5 and the bushing 3 should be so small on the turn of an enlarged part 7 and the other side that a glowing of the feeds tightly enclosing part 6 exist.
Feed 3 is not possible within this opening. It may also be useful if it is on. This is achieved by making this ring point of a single molded part 5 relatively narrow for each through-hole. It is expedient to provide a separate molded part, the opening of which, the distance between the inner wall of the opening according to the invention, preferably the opening part 7 and the passage, for example, but molded parts with several openings <1.0 mm will be selected. Select this extended part 7, since this results in better adjustment of the opening and the importance of preventing cathodes from being achieved. The material chosen for that which is approximately on the surface of the molded part according to the invention is glass or, advantageously, metal which is deposited in a conductive connection, ceramic. In a preferred Ausdung with the feed 3 arrives. In this exemplary embodiment, this molded part 5 is preferred to ensure that the widened part 7 of the angle 4 of the tube is still attached, for example by making the opening in the molded part 5 longer than the gap 12 between the molded part 5 and the the part 6 of the base 4, which rests closely on the bushing, is covered with a cement compound, e.g. a ceramic opening. Putty, fills out.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

ι 2 application of a voltage outside the tube he patent claims: possible. It is also known that the digit-shaped

1. Character-indicating gas discharge tube methods of number display tubes directly on the according to the glow light principle, which is to be attached within the 5 feedthroughs of the tube base. It Pipe feeds to the Glimmka- is further known to carry coffins for that methods at least partially with the participation of all those at cathode potential the supply lines glow largely suppressed parts that are not the actual digits Molded part made of insulating material represent a method to prevent that one are, wherein the molded part with one or more io surrounds these parts with an insulating material openings is provided, through each of which one happens in such a way that e.g. the feeds Feed is passed through, thereby being covered with a ceramic paste, or else, indicates that at least one opening can be reached via the feed lines within the tube has a changing cross-section that pushes insulating beads. It is also known at Röhart, that the glow cathode facing away from 15 reindeer base to attach a molded part that a variety Part of the opening has the feed as narrow as possible of openings through which the feeds encloses and which the glow cathodes pull to the cathodes are passed and close turned part of the opening with the feeder reaching up to the digits.

surrounds such a distance that on the one hand with a gas or vapor discharge tube with

there is no contact between the inner wall of the electrodes arranged concentrically to one another Opening and the supply takes place and other - it is also known, on one of the electrodes on the on the other hand, the end face that is created on the glow cathode and holds the insulating part for the purpose of a Do not put the glow skin in the gap between the concentric Leakage Current Extension and to attach the inner wall of the opening into the annular space between the penetrates 25 electrodes protrude.

2. Gas discharge tube according to claim 1, the object of which is the present invention characterized in that the molded part is made of glass, a gas discharge tube of the initially or preferably made of ceramic. named Art in terms of their structure in such a way

3. Gas discharge tube according to claim 1 or improve that on the one hand a shock-insensitive claim 2, characterized in that the 30 borrowed holder of the cathodes is guaranteed and supply non-contacting part of the opening in on the other hand a co-diminishing of the supplies to the molded part formed longer is than that which these cathodes are largely prevented.
According to the invention, it is proposed that at least one opening have a changing transverse

4. Gas discharge tube after one or more 35 sections, in such a way that the glow cathode Reren of claims 1 to 3, characterized by the facing away part of the opening, the supply as possible, that several molded parts within one lent tightly encloses and the glow cathode Tube are provided. facing part of the opening with the feed

5. Surrounds the gas discharge tube after one or more such a distance that on the one hand none Reren of claims 1 to 4, characterized thereby 40 contact between the inner wall of the opening records that the molded part takes place on the inner wall and the feed and others * 's on of the tube base, through which the leads of the glow cathode do not enter the glowing cathode are passed through in a gas-tight manner, preferably with the gap between the feed and the inner part a putty or the like. Is attached. wall of the opening penetrates.

6. Gas discharge tube according to one or more 45 The molded part provided according to the invention possesses reren of claims 1 to 4, characterized in that it shows the cathodes in defined lines, that the molded part resists one another as a tube base and that it is shock-sensitive and the speed of the cathode structure surrounding the leads is reduced. Another Part of the openings as a gas-tight implementation is the advantage that by the erfindungsgeder Feeds is formed. 50 moderate formation of the openings of these molded parts

Members of the parts that shouldn't glow

is largely prevented.

On the basis of the FIGS. 1 and 2 illustrated preferred embodiments of the invention

The invention relates to a gas zeichenanzeigendc ₅₅ of the registration object erentladungsröhre in more detail below after the Glimmlichtprinzip, clears the.

feed lines located within the tube to the Fig. 1 shows a cross section through a ge

Glimmkathoden at least partially with a the _m AESS the invention constructed numeric display tube Mitglimmen the feeds largely suppress for clarity only part of the Röhrenkenden molding are surrounded of insulating material in which, 60 wall, and only a single digit cathode dargewobei the shaped part with one or more openings have is. The F i g. 2 shows a plan view of a begen, through each of which a feed preferred molded part according to the invention,
is passed through. Inside a vacuum envelope that emerges from the

It is known that the Kakel4 formed as digits and the piston 1 is located methods of digit indicator tubes isolated on stacked 65 digit cathode 2, of which during operation in the growing to be lined up and thus the position of the essential only the number, but not the feed 3 to define individual cathodes. The individual cathode and the attachment approach 10 is supposed to glow. This these are then provided with feeders, which can be a digit2 on the feedthrough3, e.g.