JPS643995U

JPS643995U -

Info

Publication number: JPS643995U
Application number: JP9793987U
Authority: JP
Priority date: 1987-06-26
Filing date: 1987-06-26
Publication date: 1989-01-11

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示した回路ブロツ
ク図、第２図は第１図の光結合構造を示した断面
図、第３図は本考案の他の実施例を示した回路ブ
ロツク図、第４図は第３図の磁気誘導結合構造を
示した断面図、第５図は第３図の実施例における
感知器本体の他の実施例を示した回路ブロツク図
、第６，７図は従来例を示した回路ブロツク図で
ある。１：スイツチング回路（発報用）、２：イオン
化式検煙部、３：ＦＥＴ、４：伝送回路、５：ア
ドレス設定回路、６，３０：トランジスタ、７：
感知器ベース、８：感知器本体、９：電流検出回
路、１０：発光ダイオード、１２：フオトダイオ
ード、１３：レベル判定回路、１４：天井面、１
５，１７：回路基板、１６，１８：通し穴、２０
：スイツチング回路、２２：磁気誘導コイル、２
４：ホール素子回路、２６：火災検出部、２８：
コンパレータ。 Fig. 1 is a circuit block diagram showing one embodiment of the present invention, Fig. 2 is a sectional view showing the optical coupling structure of Fig. 1, and Fig. 3 is a circuit block diagram showing another embodiment of the present invention. 4 is a sectional view showing the magnetic inductive coupling structure of FIG. 3, FIG. 5 is a circuit block diagram showing another embodiment of the sensor main body in the embodiment of FIG. 3, and FIGS. The figure is a circuit block diagram showing a conventional example. 1: Switching circuit (for alarm), 2: Ionization type smoke detector, 3: FET, 4: Transmission circuit, 5: Address setting circuit, 6, 30: Transistor, 7:
Sensor base, 8: Sensor main body, 9: Current detection circuit, 10: Light emitting diode, 12: Photo diode, 13: Level judgment circuit, 14: Ceiling surface, 1
5, 17: Circuit board, 16, 18: Through hole, 20
: Switching circuit, 22: Magnetic induction coil, 2
4: Hall element circuit, 26: Fire detection section, 28:
comparator.

Claims

[Claims for Utility Model Registration] Consisting of a sensor base installed on a ceiling surface, etc., and a sensor main body detachably attached to the sensor base, the sensor base includes a sensor base that transmits signals from a receiver into the sensor base. In a test device for a fire detector equipped with a transmission circuit for decoding a test signal, a test signal is provided in the sensor base and transmits the test signal received and decoded by the transmission circuit to the sensor main body in a non-contact manner. Testing of a fire detector, characterized in that a transmitting means is provided, and a test signal receiving means is provided in the detector main body to receive a test signal from the test signal transmitting means in a non-contact manner and perform a test operation. Device.