Title:
PROTECTIVE DEVICE OF THREE-PHASE MOTOR
Document Type and Number:
WIPO Patent Application WO/2010/052750
Kind Code:
A1
Abstract:
A protective device of three-phase motor comprises a protrusion (35) provided in a housing (22) constituting an enclosed container (21), three conductive terminal pins (26) secured airtightly to a metal plate (23) constituting the enclosed container (21), three fixed contacts (27) bonded to the conductive terminal pin (26), a thermal response plate (32) drawn into the shape of a plate and reversing the curving direction at a predetermined temperature, three movable contacts (33) bonded to the thermal response plate (32) and constituting three pairs of opening/closing contact along with the fixed contacts (27), and a resilient member (34) for clamping the central portion of the thermal response plate (32) between the protrusion (35) and urging the thermal response plate (32) in the direction receding from the fixed contact (27).
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Inventors:
HIGASHIKATA, Isao (4-30, Hosho-cho Minami-ku, Nagoya-sh, Aichi 28, 45708, JP)
Application Number:
JP2008/003177
Publication Date:
May 14, 2010
Filing Date:
November 05, 2008
Export Citation:
Assignee:
UBUKATA INDUSTRIES CO., LTD. (4-30, Hosho-cho Minami-ku, Nagoya-sh, Aichi 28, 45708, JP)
株式会社生方製作所 (〒28 愛知県名古屋市南区宝生町４丁目３０番地 Aichi, 45708, JP)
株式会社生方製作所 (〒28 愛知県名古屋市南区宝生町４丁目３０番地 Aichi, 45708, JP)
International Classes:
H01H37/54
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (Fourteen Hills Center Building, 6-15 Sakae 4-chome, Naka-ku, Nagoya-sh, Aichi 08, 46000, JP)
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