Title:
MAGNETIZING DEVICE AND METHOD FOR MANUFACTURING PERMANENT MAGNET MOTOR
Document Type and Number:
WIPO Patent Application WO/2011/048652
Kind Code:
A1
Abstract:
A permanent magnet type magnetizing power supply that enables magnetization without using a magnetizing power supply comprises: a magnetic field generation space (3) having a dimension that enables a magnetized piece (5) to pass through; and a magnetic circuit (4) that includes at least a pair of permanent magnets (1a, 1b) provided at positions facing each other with the magnetic field generation space in between and having mutually the same magnetic field direction and that forms a circulatory magnetic field (4a) passing through the magnetic field generation space from one of the permanent magnets, entering the other one of the permanent magnet, and finally returning to the one of the permanent magnets. The magnetic circuit (4) can further include, for example, pole pieces (2a, 2b) provided on the magnetic field generation space sides of the pair of permanent magnets (1a, 1b), having one end contacting the permanent magnet and the other end contacting the magnetic field generation space, and having such a shape that the cross-sectional area of a plane orthogonal to the magnetic field direction decreases from the one end toward the other end and a yoke (2) connecting between the opposite sides of the respective permanent magnets with respect to the pole pieces.
Inventors:
KOMATSU, Takanori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
小松 孝教 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TAKIGUCHI, Ryuichi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
瀧口 隆一 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
YAMASHIRO, Satoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
小松 孝教 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TAKIGUCHI, Ryuichi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
瀧口 隆一 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
YAMASHIRO, Satoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2009/068003
Publication Date:
April 28, 2011
Filing Date:
October 19, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
KOMATSU, Takanori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
小松 孝教 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TAKIGUCHI, Ryuichi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
瀧口 隆一 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
KOMATSU, Takanori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
小松 孝教 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TAKIGUCHI, Ryuichi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
瀧口 隆一 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
International Classes:
H01F13/00; H02K15/03
Attorney, Agent or Firm:
SOGA, Michiharu et al. (S. Soga & Co, 8th Floor Kokusai Building, 1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)