| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit board unit capable of accurately arranging a light emitting part and a light receiving part of a sensor in prescribed attitudes, and a manufacturing method of the circuit board unit. <P>SOLUTION: The circuit board unit 104 includes: a circuit board 141 for controlling the rotation of a motor; and the sensor 142 provided on the circuit board 141. The sensor 142 includes: a sensor body part 105; and a plurality of terminal pins 106. On the upper surface of the sensor body part 105, the light emitting part 151 and the light receiving part 152 are arranged in parallel. The plurality of terminal pins 106 are extended downwards from the sensor body part 105, and are also directly fixed to the circuit board 141. Also, the plurality of terminal pins 106 include a pair of terminal pin groups 161 and 162 symmetrically arranged with a virtual plane 153 including an optical axis 151a of the light emitting part 151 and an optical axis 152a of the light receiving part 152 as a reference. <P>COPYRIGHT: (C)2012,JPO&INPIT |
