JPS61184293U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るヒーター線の一実施例を
示す横断面図、第２図は他の実施例を示す横断面
図、第３図は従来のヒーター線を示す横断面図で
ある。 １ａおよび１ｂは主電極導体、２は発熱抵抗体
、３は絶縁体、４はシース、５ａおよび５ｂは予
備電極導体である。 FIG. 1 is a cross-sectional view showing one embodiment of the heater wire according to the present invention, FIG. 2 is a cross-sectional view showing another embodiment, and FIG. 3 is a cross-sectional view showing a conventional heater wire. 1a and 1b are main electrode conductors, 2 is a heating resistor, 3 is an insulator, 4 is a sheath, and 5a and 5b are preliminary electrode conductors.

Claims (1)

【実用新案登録請求の範囲】 (1) 発熱抵抗体中に、一対の主電極導体および
少なくとも１本の予備電極導体を埋め込んだこと
を特徴とするヒーター線。 (2) 全ての主電極導体および予備電極導体を同
一間隔で配列した実用新案登録請求の範囲第１項
記載のヒーター線。 (3) 全ての主電極導体および予備電極導体を同
一サイズにした実用新案登録請求の範囲第２項記
載のヒーター線。 (4) 主電極導体のサイズを予備電極導体のサイ
ズよりも大きくし、前記予備電極導体を一対設け
た実用新案登録請求の範囲第１項または第３項記
載のヒーター線。 (5) 発熱抵抗体が正の温度係数特性を有する実
用新案登録請求の範囲第１項ないし第４項のいず
れか記載のヒーター線。[Claims for Utility Model Registration] (1) A heater wire characterized in that a pair of main electrode conductors and at least one preliminary electrode conductor are embedded in a heating resistor. (2) The heater wire according to claim 1 of the utility model registration claim, in which all the main electrode conductors and auxiliary electrode conductors are arranged at the same spacing. (3) The heater wire according to claim 2 of the utility model registration claim, in which all the main electrode conductors and the preliminary electrode conductors are of the same size. (4) The heater wire according to claim 1 or 3, wherein the size of the main electrode conductor is larger than the size of the preliminary electrode conductor, and a pair of the preliminary electrode conductors are provided. (5) The heater wire according to any one of claims 1 to 4, wherein the heating resistor has a positive temperature coefficient characteristic.