Discharge tube
AssigneeYazaki Corporation
InventorTetsuya Mitani
Life of this patent
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Abstract
This invention provides a discharge tube which is small and easy to manufacture, which prevents the discharge characteristics from being disturbed by a grounded body located nearby, and which makes creeping discharges unlikely to occur and at the same time enhances the degree of freedom in incorporating the discharge tube into devices. The discharge tube of this invention has electrode plates fixed at the ends of the enclosure so that the electrode plates have their discharge electrodes protruding inwardly to face each other. The central portion of one of the electrode plates is bulged outwardly, and the discharge plane of the discharge electrode is located close to a plane including the periphery of the electrode plate.
Claims7
A discharge tube comprising:
- an enclosure;
- and
- two electrode plates fixedly provided at opposite ends of said enclosure, said electrode plates each having a discharge electrode protruding inwardly so that the discharge electrodes face each other;
- wherein a first one of said electrode plates has a central portion thereof bulged outwardly and an innermost point of the discharge electrode of said first electrode plate is essentially coplanar with an innermost edge of an outer periphery of said first electrode plate;
- and wherein the discharge electrode of a second one of said electrode plates is elongated in correspondence with the retracted discharge electrode of said first electrode plate.
Dependencies are inferred from the claim text.