JPH01111447U - - Google Patents

Description

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

第１図は本考案の欠相保護用短絡装置を示す回
路図、第２図は短絡回路を示す斜視図、第３図ａ
，ｂは短絡回路を示す平面図および正面図、第４
図はカバー体をヒユーズ取付台に装着した状態を
示す断面図、第５図および第６図は第４図の平面
図および斜視図、第７図は可動接点の変形例を示
す断面図、第８図ａ，ｂはその作動を示す断面図
、第９図は従来の欠相保護用短絡装置の外形を示
す斜視図。 符号の説明、１……ヒユーズ取付台、２……カ
バー体、３……ボルト、４……パツキン、５Ｕ，
５Ｖ，５Ｗ……電源側分岐線、６Ｕ，６Ｖ，６Ｗ
……メインヒユーズ、７Ｕ，７Ｖ，７Ｗ……負荷
側分岐線、８Ｕ，８Ｖ，８Ｗ……負荷側配電線、
９Ｕ，９Ｖ，９Ｗ……トリガヒユーズ、１０……
短絡回路、１１，１１Ｕ，１１Ｖ，１１Ｗ……可
動接点、１２Ｕ，１２Ｖ，１２Ｗ……接続線、１
３，１３Ｕ，１３Ｖ，１３Ｗ……固定接点、１４
……トリガ、１５……ヒユーズ取付台、１６Ｕ，
１６Ｖ，１６Ｗ……カバー体、１７，１８……吸
引鉄片、１９……ブラケツト、２０……ボルト、
２１……フツク部、２２……パツキング、２３…
…リード端子、２４……シヤフト、２５……コイ
ルばね。 Fig. 1 is a circuit diagram showing the short circuit device for protection against phase loss of the present invention, Fig. 2 is a perspective view showing the short circuit, and Fig. 3 a.
,b is a plan view and a front view showing a short circuit, 4th
5 and 6 are a plan view and a perspective view of FIG. 4, and FIG. 7 is a sectional view showing a modification of the movable contact. 8a and 8b are cross-sectional views showing its operation, and FIG. 9 is a perspective view showing the external shape of a conventional short-circuiting device for protection against open phase. Explanation of symbols, 1... Fuse mounting base, 2... Cover body, 3... Bolt, 4... Packing, 5U,
5V, 5W...Power supply side branch line, 6U, 6V, 6W
...Main fuse, 7U, 7V, 7W...Load side branch line, 8U, 8V, 8W...Load side distribution line,
9U, 9V, 9W...Trigger fuse, 10...
Short circuit, 11, 11U, 11V, 11W...Movable contact, 12U, 12V, 12W...Connection line, 1
3, 13U, 13V, 13W...Fixed contact, 14
...Trigger, 15...Fuse mount, 16U,
16V, 16W...Cover body, 17, 18...Suction iron piece, 19...Bracket, 20...Bolt,
21... Hook part, 22... Packing, 23...
...Lead terminal, 24...Shaft, 25...Coil spring.

Claims (1)

【実用新案登録請求の範囲】 (1) ヒユーズ取付台に着脱可能に装着される複
数のカバー体とを備え、 前記カバー体には、配電線に直列に接続される
メインヒユーズと、このメインヒユーズの溶断に
基づいて突出するトリガを有して前記メインヒユ
ーズと並列となるように接続されるトリガヒユー
ズとが各相ごとに収納され、 前記ヒユーズ取付台には、全体が扁平ブスバー
の組立体からなり前記トリガの突出により可動接
点が固定接点と接触して各相を一括して、あるい
は所定の相間を短絡させる短絡回路が収納されて
いることを特徴とする欠相保護用短絡装置。 (2) 前記可動接点および固定接点には相互に吸
引する吸引鉄片が設けられている実用新案登録請
求の範囲第１項記載の欠相保護用短絡装置。 (3) 前記可動接点はばねによつて固定接点と離
れるように付勢されている実用新案登録請求の範
囲第１項記載の欠相保護用短絡装置。 (4) 前記扁平ブスバーは相間において垂直に配
置され、離隔相の接続は平面配置によつて行われ
る実用新案登録請求の範囲第１項記載の欠相保護
用短絡装置。[Claims for Utility Model Registration] (1) A plurality of cover bodies are provided which are removably attached to a fuse mount, and each of the cover bodies includes a main fuse connected in series to a power distribution line, and a main fuse connected to the power distribution line in series. A trigger fuse is housed for each phase and is connected in parallel with the main fuse, and has a trigger that protrudes based on the melting of the fuse. A short-circuiting device for protecting an open phase, characterized in that a short-circuiting circuit is housed in which a movable contact contacts a fixed contact upon protrusion of the trigger to short-circuit each phase all at once or between predetermined phases. (2) The short circuit device for protecting an open phase according to claim 1, wherein the movable contact and the fixed contact are provided with suction iron pieces that attract each other. (3) The short-circuiting device for protection against an open phase according to claim 1, wherein the movable contact is urged to separate from the fixed contact by a spring. (4) The short-circuiting device for protecting an open phase according to claim 1, wherein the flat bus bar is arranged vertically between the phases, and the connection of the separated phases is performed by a planar arrangement.