CN1743262A - Long-life cathode for air plasma generator - Google Patents
Long-life cathode for air plasma generator Download PDFInfo
- Publication number
- CN1743262A CN1743262A CN 200410040585 CN200410040585A CN1743262A CN 1743262 A CN1743262 A CN 1743262A CN 200410040585 CN200410040585 CN 200410040585 CN 200410040585 A CN200410040585 A CN 200410040585A CN 1743262 A CN1743262 A CN 1743262A
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- cathode
- cathode head
- plasma generator
- air plasma
- cylindrical
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Abstract
The invention relates to a long-life cathode of air plasma generator. At the central axle of the cathode is thru provided with a cylindrical hollow cavity in which there is a cylindrical cathode head. The cathode head is tightly sealed with the hollow cavity wall through the thin layer of solidified lubrication conductive glue on the cathode head surface. On the top of the cathode head is fitted with an insulation flat board on which is fitted with a mini-size two-direction step-by step motor the vertical output-axle of which is connected integrally with the insulation flat board. The length of the cathode head can be determined according to requirement. When air plasma generator work, even though the cathode head is continually oxygenated and burn out, as the cathode head can slowly move downward under the action of the motor, so the normal electron emission of the cathode head can be ensured and the service life of cathode head can be largely prolonged.
Description
Technical field
The present invention relates to a kind of negative electrode of gas ions producer, the long life cathode that exactly relates to a kind of air plasma generator and adopted.
Background technology
Present air plasma generator in usefulness; the cathode taps of its emitting electrons; is enclosed in the cathode by being set, owing to be to make of cerium tungsten material, and the end of its emitting electrons is to expose to the open air in air ambient during work; very easily oxidized and ablate; caused the negative electrode of existing air plasma generator in usefulness, work-ing life is very short, and general work just needed to shut down to change in tens hours; not only maintain and replace bothers, and has seriously influenced its non-stop run.
Summary of the invention
A kind of long life cathode of air plasma generator, it is characterized in that: at the axis position of cathode, be provided with the perforation cylindrical cavity of both ends of the surface up and down, at this cavity a cylindrical female cartridge is housed, cathode taps is by the lubricated conductive resin thin layer of solidified on its cylindrical surface, wall tight seal with the cylindrical cavity of cathode, it is dull and stereotyped that the top of cathode taps is fixed with an insulation, a miniature two-way stepping motor is housed on this flat board end face, and the vertical output axle of this motor connects firmly with the insulation flat board and is integral.
The invention has the advantages that: different with existing negative electrode, because cathode taps is not set and is enclosed in the cathode, but run through cathode, its length can be determined as required, can be tens times of cathode taps length in the existing negative electrode, when air plasma generator is worked, although its cathode taps in the emitting electrons process constantly by oxygen candle, but, this cathode taps is under the promotion of the miniature two-way stepping motor in top, can promote cathode taps lentamente and move down, continue to ensure the normal electron emission of cathode taps, thereby negative electrode is improved work-ing life significantly.
Description of drawings
Fig. 1 is a cathode construction sectional side elevation of the present invention
Mark among the figure: 1 is the air plasma generator cathode, 2 is the air plasma generator cathode taps, 3 for being solidificated in the lubricated conductive resin thin layer on the cathode taps cylindrical surface, 4 for being fixed on the insulation flat board of cathode taps Top end, 5 for being contained in the miniature two-way stepping motor that the dull and stereotyped upward promotion of insulation cathode taps slowly moves down, and 6 is miniature two-way stepping motor output shaft.
Embodiment
A kind of long life cathode of air plasma generator, the axis position of its cathode 1, be provided with the perforation cylindrical cavity of both ends of the surface up and down, at this cavity a cylindrical female cartridge 2 is housed, this cathode taps 2 is by the lubricated conductive resin thin layer 3 of solidified on its periphery, wall tight seal with the cylindrical cavity of cathode 1, the top of cathode taps 2 is embedded in the groove of dull and stereotyped 4 bottom surfaces of insulation, a miniature two-way stepping motor 5 is housed on this dull and stereotyped end face that insulate, and the vertical output axle 6 of this motor 5 connects firmly with insulation dull and stereotyped 4 and is integral; When air plasma generator is worked, cathode taps 2 emitting electrons that it is made by cerium tungsten material, because expose to the open air in air working gas environment this cathode taps bottom, ablated by oxygen, but this cathode taps is under the slowly promotion of either-rotation motor 5, constantly replenish the ablated room of falling and continue emitting electrons, thereby the working life of negative electrode is prolonged greatly.Concrete parameter of the present utility model as an example is as follows:
Cathode 1: the red copper material is made, be the bottle cap shape that has protruding top, axis cylindrical cavity with two ends about connecting, protruding end face external diameter Ф 20mm, high 10mm, cylinder edge external diameter Ф 34mm, edge height 3mm below the protruding top, cylinder external diameter Ф 30mm, the high 12mm of cylinder, the groove internal diameter Ф 15mm of cylinder bottom center, depth of groove 2mm, axis cylindrical cavity internal diameter Ф 9mm, cavity height 23mm.
Cathode taps 2:: cerium tungsten material is made, and is shaped as elongated cylinder, and diameter Ф 9mm, length are 200mm.
Lubricated conductive resin thin layer 3: be solidificated on the cathode taps cylinder cylindrical surface thickness of thin layer 0.1mm.
Insulation dull and stereotyped 4: insulating composite material is made, cylindric, diameter Ф 40mm, height 15mm, and there is circular groove the bottom surface, groove internal diameter Ф 9mm, groove depth 4mm.
Miniature two-way stepping motor 5: power 2W, per minute reciprocal 0.5 changes.
Claims (1)
1, a kind of long life cathode of air plasma generator, it is characterized in that: at the axis position of cathode (1), be provided with the perforation cylindrical cavity of both ends of the surface up and down, at this cavity a cylindrical female cartridge (2) is housed, cathode taps (2) is by the lubricated conductive resin thin layer (3) of solidified on its cylindrical surface, wall tight seal with the cylindrical cavity of cathode (1), the top of cathode taps (2) is fixed with an insulation dull and stereotyped (4), a miniature two-way stepping motor (5) is housed on the end face of this flat board (4), and the vertical output axle (6) of this motor (5) connects firmly with insulation dull and stereotyped (4) and is integral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040585 CN1743262A (en) | 2004-09-01 | 2004-09-01 | Long-life cathode for air plasma generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040585 CN1743262A (en) | 2004-09-01 | 2004-09-01 | Long-life cathode for air plasma generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1743262A true CN1743262A (en) | 2006-03-08 |
Family
ID=36138815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040585 Pending CN1743262A (en) | 2004-09-01 | 2004-09-01 | Long-life cathode for air plasma generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1743262A (en) |
-
2004
- 2004-09-01 CN CN 200410040585 patent/CN1743262A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |