JPS59117045U - Fixing structure of element unit in cylindrical cutout with current limiting element - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は限流素子ユニットを絶縁支持部材に一定した場
合の本案の実施例を示す限流素子付円筒形カットアウト
の要部を破断した断面図、第２図Ａ−Ｆは限流素子ユニ
ットの正面図、平面図、底面図、ａ−ａ’断面図、ｂ−
ｂ’断面図、ｃ−ｃ’断面図を各々示す。第３図は絶縁
支持部材に限流素子ユニットを嵌入して固定した状態の
縦断面図、第４図は第３図における左側面図、第５図は
第４図を上方よりみた一部省略してなる平面図、第６図
は限流素子ユニットを下部カバーに固定した場合の本案
の他の実施例を示す限流素子付円筒形カップアウトの要
部破断図である。 １・・・・・・本体、１ａ・・・・・・下端開口部、３
・・・・・・接着材、４・・・・・・絶縁支持部材、４
ｄ・・・・・・収納部、４ｄ′・・・・・・内壁面、６
・・・・・・限流素子ユニット、７′・・・・・・限流
素子、７ａ・・・・・・上部端面、７ｂ・・・・・・下
部端面、８・・・・・・上部端子、８ａ・・・・・・接
続部、９・・・・・・下部端子、９ａ・・・・・・接続
部、１０・・・・・・絶縁物、１０ａ・・・・・・係合
***部。Figure 1 is a cross-sectional view of the main part of a cylindrical cut-out with a current-limiting element showing an embodiment of the present invention in which the current-limiting element unit is fixed to an insulating support member, and Figures 2 A-F are cross-sectional views of the current-limiting element. Unit front view, top view, bottom view, a-a' sectional view, b-
A b' cross-sectional view and a c-c' cross-sectional view are shown, respectively. Fig. 3 is a longitudinal cross-sectional view of the current limiting element unit fitted and fixed into the insulating support member, Fig. 4 is a left side view of Fig. 3, and Fig. 5 is a partially omitted view of Fig. 4 from above. FIG. 6 is a cutaway view of a main part of a cylindrical cup-out with a current-limiting element, showing another embodiment of the present invention in which the current-limiting element unit is fixed to the lower cover. 1...Main body, 1a...Lower end opening, 3
...Adhesive material, 4...Insulating support member, 4
d...Storage section, 4d'...Inner wall surface, 6
...Current limiting element unit, 7'... Current limiting element, 7a... Upper end surface, 7b... Lower end surface, 8... Upper terminal, 8a...Connection part, 9...Lower terminal, 9a...Connection part, 10...Insulator, 10a... Engagement ridge.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 酸化亜鉛等を主成分とする焼結体よりなる限流素子の上
下端面に上下各端子を接続し、これら端子の接続部を除
く両端子と上記素子外周面を合成樹脂あるいはゴム等の
絶縁物で一体に被覆成形した限流素子ユニットを円筒形
の本体の下端開口部に固着した合成樹脂性の絶縁支持部
材あるいは下部カバーに一体に形成した凹状の収納部に
対し嵌入して同ユニットを固定するようにしたものにお
いて、上記限流素子ユニットの絶縁物の外周面には成形
時係合***部を一体に形成し、かかる係合***部を上記
ユニットの嵌入時収納部の内壁面に対し圧接して同ユニ
ットを固定するようにした限流素子付円筒形カットアウ
トにおける素子ユニットの固定構造。The upper and lower terminals are connected to the upper and lower end surfaces of a current-limiting element made of a sintered body whose main component is zinc oxide, etc., and both terminals and the outer circumferential surface of the element are covered with an insulating material such as synthetic resin or rubber. The current limiting element unit, which is integrally coated and molded, is fixed by fitting it into a synthetic resin insulating support member fixed to the lower end opening of the cylindrical body or into a recessed storage part formed integrally with the lower cover. In this device, an engaging protrusion is integrally formed on the outer peripheral surface of the insulator of the current limiting element unit, and the engaging protrusion is formed against the inner wall surface of the storage portion when the unit is inserted. A fixing structure for an element unit in a cylindrical cutout with a current limiting element that fixes the unit by pressure contact.