| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem: for the purpose of preventing failure due to heat or the like, a conventional DC brushless motor has protective means included in two windings to cut off an electric current upon detection of generated heat; however, the conventional method requires two temperature detection means and there occur variations in detected temperatures because the protective means detects wiring temperatures. <P>SOLUTION: The DC brushless motor includes one protective means provided on the rear of a control board attached with an intelligent power module to reduce the number of parts for highly precise temperature detection, thereby preventing generation of failure or the like in the DC brushless motor. <P>COPYRIGHT: (C)2012,JPO&INPIT |
