JPS61143293U - - Google Patents

Description

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

第１図はこの考案の一実施例の回路図、第２図
はその詳細な回路図、第３図および第４図はそれ
ぞれ従来の誘導灯用信号装置の回路図である。 １……商用電源、５……移動接点（外部接点）
、Ｆ……電流ヒユーズ、Ｚ……電流制限用インピ
ーダンス、６……リレー、７……コイル、１３…
…接点、１８，１８……負荷接続用の端子。 FIG. 1 is a circuit diagram of an embodiment of this invention, FIG. 2 is a detailed circuit diagram thereof, and FIGS. 3 and 4 are circuit diagrams of conventional guide light signaling devices, respectively. 1...Commercial power supply, 5...Moving contact (external contact)
, F... Current fuse, Z... Current limiting impedance, 6... Relay, 7... Coil, 13...
...Contact, 18, 18...Terminal for load connection.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外部接点を介して電源に接続したリレーのコイ
ルと、前記電源に前記リレーの接点を介して接続
した負荷接続端子と、前記電源から前記負荷接続
端子へ至る負荷給電経路中に直列介挿した電流ヒ
ユーズおよび電流制限用インピーダンスの直列回
路とを備え、前記負荷接続端子の短絡時に前記負
荷給電経路に流れる電流で前記電流ヒユーズが溶
断する前に前記リレーの接点が溶着しないように
前記電流制限用インピーダンスの抵抗値を設定し
た信号装置。 A coil of a relay connected to a power supply through an external contact, a load connection terminal connected to the power supply through the contact of the relay, and a current inserted in series in a load power supply path from the power supply to the load connection terminal. a series circuit of a fuse and a current-limiting impedance, and the current-limiting impedance is configured to prevent the contacts of the relay from welding before the current fuse is blown by the current flowing in the load power supply path when the load connection terminal is short-circuited. A signal device with a resistance value set.