SOLENOID VALVE CONTROL DEVICE

WIPO Patent Application WO/2011/077818

A1

Disclosed is a solenoid valve control device provided with: a first relay (20) connected in series to a drive coil of a solenoid valve (30) between output terminals (11a, 11b) of a rectifier circuit (11); a photocoupler (31) which outputs a voltage level (GND) when a predetermined level or higher of a current flows to a contact (20a) in the first relay (20), and which outputs a voltage level (V5) when a predetermined level or higher of a current does not flow to the contact (20a) in the first relay (20); and a rectifier circuit (40) which smooths and outputs an output voltage (Va1) from the photocoupler (31). When an output voltage (Vb1) from the rectifier circuit (40) is not higher than a first threshold (Vt1), a microcomputer (1a) detects that the first relay (20) is on.

KAMADA, Kazuya (2-26 Fukuzumi-cho, Nakagawa-ku, Nagoya-sh, Aichi 02, 〒4540802, JP)
鎌田　和也 (〒02 愛知県名古屋市中川区福住町２番２６号　リンナイ株式会社内 Aichi, 〒4540802, JP)
HIROTA, Kazuya (2-26 Fukuzumi-cho, Nakagawa-ku, Nagoya-sh, Aichi 02, 〒4540802, JP)

JP2010/068496

June 30, 2011

October 20, 2010

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RINNAI CORPORATION (2-26, Fukuzumi-cho Nakagawa-ku, Nagoya-sh, Aichi 02, 〒4540802, JP)
リンナイ株式会社 (〒02 愛知県名古屋市中川区福住町２番２６号 Aichi, 〒4540802, JP)
KAMADA, Kazuya (2-26 Fukuzumi-cho, Nakagawa-ku, Nagoya-sh, Aichi 02, 〒4540802, JP)
鎌田　和也 (〒02 愛知県名古屋市中川区福住町２番２６号　リンナイ株式会社内 Aichi, 〒4540802, JP)

F16K31/06; F16K37/00

SATO & ASSOCIATES (Nishi-Shinjuku Mitsui Building 18F, 24-1 Nishi-Shinjuku 6-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)

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