Thermal packaging type low-temperature plasma electrode

Abstract

The utility model relates to a thermal packaging type low-temperature plasma electrode, and belongs to the field of electrodes. Comprising a metal rod located in the center and a glass tube located outside the metal rod, one end of the metal rod is exposed out of the glass tube, the manufacturing tolerance of the outer diameter of the metal rod and the inner diameter of the glass tube can ensure that the metal rod and the glass tube are in slight contact, and hot packaging materials are arranged at the tube opening position after the glass tube and the metal rod are combined and tightly bonded with the metal rod and the glass tube respectively. According to the low-temperature plasma electrode, gas between a glass tube and a metal rod of an existing low-temperature plasma electrode is greatly reduced by reducing a gap between the glass tube and metal and thermally packaging, so that the corrosion of plasma generated by the gas at the part in use to the metal rod is reduced; the problem that a traditional low-temperature plasma electrode is damaged quickly in the using process is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of electrodes, in particular to a thermally packaged low-temperature plasma electrode. Background Art

[0002] As is known to all, low-temperature plasma is highly corrosive to metals and other objects. Existing low-temperature plasma devices mostly use dual dielectric barrier discharge technology, using metal rods with glass tubes as electrodes. Although such electrodes have glass tubes to protect the metal rods from being corroded by plasma outside the electrodes, there is a gap between the glass tube and the metal rod, which is filled with gas. During use, a small amount of gas in the gap inside the electrode is also ionized into plasma, which still corrodes the metal rods, causing the electrodes to be damaged quickly. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a thermally packaged low-temperature plasma electrode, which effectively reduces damage during use.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a heat-sealed low-temperature plasma electrode, including a metal rod located at the center and a glass tube located outside the metal rod, characterized in that one end of the metal rod is exposed outside the glass tube, the manufacturing tolerance of the outer diameter of the metal rod and the inner diameter of the glass tube can ensure that the two are slightly in contact, and the tube mouth after the glass tube and the metal rod are combined has a heat-sealed material that is tightly bonded to the metal rod and the glass tube respectively.

[0005] The beneficial effect of the utility model is that, by reducing the gap between the glass tube and the metal and the heat packaging, the gas between the glass tube and the metal rod of the existing low-temperature plasma electrode is greatly reduced, thereby reducing the corrosion of the metal rod by the plasma generated by the gas in this part during use, and greatly reducing the problem of rapid damage during the use of traditional low-temperature plasma electrodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0007] Figure 1 A schematic structural diagram of the utility model.

[0008] In the figure, 1. glass tube, 2. metal rod, 3. thermal packaging material. DETAILED DESCRIPTION

[0009] In the figure, the utility model includes a metal rod 2 located in the center and a glass tube 1 located outside the metal rod 2, one end of the metal rod 2 is exposed outside the glass tube 1, and the manufacturing tolerance of the outer diameter of the metal rod 2 and the inner diameter of the glass tube 1 can ensure that the two are slightly in contact; the tube mouth after the glass tube 1 and the metal rod 2 are combined has a heat packaging material 3 that is tightly bonded to the metal rod 2 and the glass tube 1 respectively.

Claims

1. A heat-sealed low-temperature plasma electrode, comprising a metal rod at the center and a glass tube outside the metal rod, characterized in that: One end of the metal rod is exposed outside the glass tube, and the manufacturing tolerance of the outer diameter of the metal rod and the inner diameter of the glass tube can ensure that the two are slightly in contact. The tube mouth after the glass tube and the metal rod are combined has heat packaging material that is tightly bonded to the metal rod and the glass tube respectively.

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