| 摘要 |
PROBLEM TO BE SOLVED: To provide a terminal block structure for efficiently wiring four poles to terminal strips, and directly connecting the four poles to a power supply land on a circuit board in a state that they can be solder-reflowed since tap wires of winding coils in a DC three-phase brushless motor are star-connected as a neutral point and U, V, W phases. SOLUTION: Six penetration holes into which a welding jig is inserted are provided at hexagonal locations in the thickness direction at which power supply terminals of the terminal block are disposed. Symbols of N1-N6 are assigned to the six through holes in the clockwise direction. The through holes N1, N4, N6 are connection locations of power supply terminals for the neutral point. One tap wire of a magnetic field coil in each phase is connected at the neutral point. The remaining through holes N2, N3, N5 are connection locations of power supply terminals for the U, V, W phases. The other tap wire is star-connected as the U, V, W phases. The six tap wires are connected to the power supply terminals in a bonding region of the six through holes N1-N6. COPYRIGHT: (C)2007,JPO&INPIT |
