TRANSFORMER FOR VEHICLES

WIPO Patent Application WO/2008/007513

A1

A transformer for vehicles comprises a core (1), a winding (2), a square tank (3) containing the core and the winding, a cooling device (7) for cooling a refrigerant (6) placed in the tank (3), and a circulation pump (8) for forcedly circulating the refrigerant (6). A partition member (9) is installed so that the inside of the tank (3) can be divided into two parts. A flow passage for the refrigerant (6) flowing inside the winding (2) is divided into a first refrigerant flow passage (10) and a second refrigerant flow passage (11) by the partition member (9). The both refrigerant flow passages (10, 11) are made to communicate with each other at one end of the tank (3), and the cooling device (7) connected to the both refrigerant flow passages (10, 11) is disposed at the other end so that the refrigerant (6) can circulate through the first refrigerant flow passage (10) and the second refrigerant flow passage (11). Consequently, the transformer for vehicles can be reduced in size and weight by simplifying the connection between the tank and the cooling device.

KIUCHI, Hiroshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 1008310, JP)
木内 浩司 (〒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)

JP2007/062093

January 17, 2008

June 15, 2007

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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)
KIUCHI, Hiroshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 1008310, JP)

H01F27/12; H01F27/10

OIWA, Masuo (14-1, Minamitsukaguchi-cho 2-chome Amagasaki-sh, Hyogo 12, 66100, JP)

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