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Surge absorber

A surge absorber, outstanding technology, applied in the direction of overvoltage protection resistors, varistors, etc., can solve the problems of rising discharge starting voltage, unable to fully complete the surge absorber, and difficult to obtain discharge starting voltage, etc. Achieve the effect of a wide discharge area

Inactive Publication Date: 2007-10-03
MITSUBISHI MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, in the above-mentioned surge absorber S, it is difficult to obtain a stable discharge start voltage, and when a sharp surge is applied, the discharge start voltage rises, and there is a possibility that the function as a surge absorber cannot be fully performed. sex

Method used

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Embodiment

[0097] The discharge characteristics of the surge absorber of the fourth embodiment described above were compared with those of metals other than Ag and measured.

[0098] Fig. 14 is a graph showing response voltage characteristics when the material of the discharge electrode is Ag, Ni, Cu, or Fe. As the surge voltage, a pulse voltage of a maximum value of 10 KV was applied for 1.2 microseconds, and a pulse voltage of a maximum value of 5 KV was applied for 50 microseconds. The discharge initiation voltage at this time was measured as a response voltage. In Fig. 14, the response voltages of each material are shown in parallel.

[0099] As can be seen from Figure 14, the discharge electrode made of Ag of the present invention has the lowest response voltage (discharge voltage) compared with discharge electrodes made of other materials, and its fluctuation range is also small, so that a stable and high-precision discharge start can be obtained. starting voltage.

[0100] In a...

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PUM

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Abstract

In a surge absorber, a pair of protrusion electrodes is fixed to a pair of terminal electrode members at positions shifted from the center of the terminal electrode members to be point-symmetrical with the center of a ceramic insulator tube and a distance between the protrusion electrodes is adjusted so as to obtain a desired discharge starting voltage. As a result, it is possible to easily change the distance between the discharge electrodes without changing the length of the discharge electrodes.

Description

technical field [0001] The present invention relates to a surge absorber used to protect various equipment impacted by abnormal voltage (surge voltage) and to prevent accidents before they occur. This surge absorber is used, for example, as a countermeasure against surges or static electricity of various electronic devices or various devices equipped with electronic devices. [0002] This application is related to the Japanese patent application No. 2006-89955 filed on March 29, 2006, the Japanese patent application No. 2006-336882 filed on December 14, 2006, and the Japanese patent application filed on December 28, 2006. National patent application No. 2006-356115 claims priority, and its content is quoted here. Background technique [0003] The part where electronic equipment for communication equipment such as telephones, facsimile machines, and modems is connected to the communication line, and the part where the electronic equipment is connected to the power line, is s...

Claims

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Application Information

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IPC IPC(8): H01C7/12
Inventor 社藤康弘原田宏一郎尾木刚
Owner MITSUBISHI MATERIALS CORP