IMPROVING RELIABILITY OF STATOR COIL TEMPERATURE DETECTION IN ROTARY ELECTRIC MACHINE
PROBLEM TO BE SOLVED: To improve the reliability of stator coil temperature detection of a rotary electric machine.SOLUTION: A rotary electric machine includes a frame 105, and a stator fixed to the frame 105 by interference-fitting. A cooling water path 106 is arranged between an inner diameter sid...
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| description | PROBLEM TO BE SOLVED: To improve the reliability of stator coil temperature detection of a rotary electric machine.SOLUTION: A rotary electric machine includes a frame 105, and a stator fixed to the frame 105 by interference-fitting. A cooling water path 106 is arranged between an inner diameter side end surface and an outer diameter side end surface of the frame 105. A temperature detection element 180 is attached to a surface of a coil end of a stator coil 165, and a cavity is made between a coil end on the temperature detection element attaching side and the frame 105. A cavity between the coil end of the opposite temperature detection element attaching side and the frame 105 is filled with resin 190 having thermal conductivity higher than the thermal conductivity of air. Thermal resistance from a surface of the stator coil 165 with which the temperature detection element 180 contacts to the cooling water path 106 is larger than thermal resistance from the surface of the stator coil 165 with which the temperature detection element 180 does not contact to the cooling water path 106. |
| format | Patent |
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A cooling water path 106 is arranged between an inner diameter side end surface and an outer diameter side end surface of the frame 105. A temperature detection element 180 is attached to a surface of a coil end of a stator coil 165, and a cavity is made between a coil end on the temperature detection element attaching side and the frame 105. A cavity between the coil end of the opposite temperature detection element attaching side and the frame 105 is filled with resin 190 having thermal conductivity higher than the thermal conductivity of air. 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A cooling water path 106 is arranged between an inner diameter side end surface and an outer diameter side end surface of the frame 105. A temperature detection element 180 is attached to a surface of a coil end of a stator coil 165, and a cavity is made between a coil end on the temperature detection element attaching side and the frame 105. A cavity between the coil end of the opposite temperature detection element attaching side and the frame 105 is filled with resin 190 having thermal conductivity higher than the thermal conductivity of air. Thermal resistance from a surface of the stator coil 165 with which the temperature detection element 180 contacts to the cooling water path 106 is larger than thermal resistance from the surface of the stator coil 165 with which the temperature detection element 180 does not contact to the cooling water path 106.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE |
| title | IMPROVING RELIABILITY OF STATOR COIL TEMPERATURE DETECTION IN ROTARY ELECTRIC MACHINE |
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