LINEAR MOTOR COOLING DEVICE

WIPO Patent Application WO/2006/040913

A1

Cooling performance of a device for cooling a linear motor in which a movable section has a coil is improved. A circular tube-like coil (32) is covered with a heat collection section (66) of each of two heat radiation plates (64) and with a resin mold (40). Heat radiation sections (68) that are extended from the heat collection sections (66) in the direction departing away from the center line of the coil (32) are projected to the outside of the resin mold section (40). Fins (78) are arranged on both upper and lower surfaces (80, 82) of projection sections (74). A duct (86) is stationarily provided along a stator (14) so as to cover a movement space for the heat radiation sections (68) and the fins (78), and fans are arranged on both end sections of the duct (86). Heat generated in the coil (32) while a moving element (16) moves is collected by the heat collection sections (66) and radiated from the heat radiation sections (68) and the fins (78). Transmission of heat to peripheral members is prevented by the duct (86), the fins (78) are cooled by cooling wind produced in the duct (86) by the fans, and high-temperature air in the duct (86) is forcibly discharged. The moving element may have a duct and a fan.

NAGASAKA KEIJI (JP)
YE JIANMING (JP)
KAWAI TAKAYOSHI (JP)

PCT/JP2005/017366

April 20, 2006

September 21, 2005

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FUJI MACHINE MFG (JP)
NAGASAKA KEIJI (JP)
YE JIANMING (JP)
KAWAI TAKAYOSHI (JP)

H02K9/04; H02K41/02; H02K9/22

JP2001008430A	2001-01-12
JPH04183258A	1992-06-30
JP2004072910A	2004-03-04
JP2003309963A	2003-10-31

Kando, Norikazu (Nagoya-Bldg. Higashikan 7th Floor 2-25, Meieki 4-chome, Nakamura-k, Nagoya-shi Aichi, JP)

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