Title:
DISCHARGE TYPE SURGE ABSORBER
Document Type and Number:
Japanese Patent JP3199088
Kind Code:
B2
Abstract:
PURPOSE: To provide a surge absober which can simply be assembled in a small size with a less number of component parts, excels in the mass-productivity, can absorb a next W surge voltage, and which can prevent overheat or firing of electronic component etc., automatically stopping electric discharge when an overcurrent or overvoltage is applied.
CONSTITUTION: A surge absorber 10 of electric discharge type is so structured that a pair of electrodes 12, 13 are installed and sealed at the two ends of an insulated tube 11 in such a positioning as opposing each other, wherein a surge absorber 20 is interposed according to necessity. An inert gas 14 is encapsulated in the space bounded by the electrodes 12, 13 and the insulated tube 11. Hole's) 15 is formed in at least either of the mating electrodes 12, 13 and is sealed with a low melting point metal 16. This metal 16 melts with the heat emitted by an electric discharge of the surge absorber 10, and the hole 15 is opened to allow the air to flow via hole 15 into the insulated tube 11 filled with the inert gas 14, and the discharge hold voltage becomes higher than the overvoltage so that the discharge is stopped which is achieved by a simple and small-sized configuration.
Inventors:
Matsuzawa Isao
Yoshiyuki Tanaka
Masatoshi Abe
Mikio Harada
Yoshiyuki Tanaka
Masatoshi Abe
Mikio Harada
Application Number:
JP20676993A
Publication Date:
August 13, 2001
Filing Date:
August 23, 1993
Export Citation:
Assignee:
Mitsubishi Materials Corporation
International Classes:
H01C7/12; H01T4/12; H02H9/06; (IPC1-7): H01T4/12
Domestic Patent References:
| JP3214580A | ||||
| JP1176689A | ||||
| JP1235179A | ||||
| JP5069635U | ||||
| JP5520123U | ||||
| JP339292U | ||||
| JP339291U | ||||
| JP226150Y2 | ||||
| JP439673Y2 | ||||
| JP439674Y2 |
Attorney, Agent or Firm:
Masayoshi Suda