摘要:
A busbar (10) has a plurality of straight portions (14) circumferentially arranged at intervals. Several such busbars (10) are tied at a plurality of circumferential spaced positions by connecting the straight positions (14) in parallel with one another. The, the busbars (10) can be positioned with high precision and will not be circumferentially displaced from each other. This can avoid the deviation of intervals between the tabs (16) and those between terminals (18) from correct ones.
摘要:
A busbar (10) has a plurality of straight portions (14) circumferentially arranged at intervals. Several such busbars (10) are tied at a plurality of circumferential spaced positions by connecting the straight positions (14) in parallel with one another. The, the busbars (10) can be positioned with high precision and will not be circumferentially displaced from each other. This can avoid the deviation of intervals between the tabs (16) and those between terminals (18) from correct ones.
摘要:
A centralized power distribution unit for a vehicular thin brushless motor includes a plurality of bus bars, an insulating holder that holds the bus bars to form a predetermined gap between the bus bars, and a resin insulating layer that covers the bus bars. Each of the bus bars has a terminal portion to be connected to a power source, such as a battery, and a tab to be connected to a winding of a stator. The bus bars are disposed correspondingly with phases of the motor. A plurality of holding grooves are formed in the insulating holder. The bus bars, which are pre-bent in a thickness direction to be shaped into a substantially annular shape, are respectively accommodated in the holding grooves. The pre-bending is preferably carried out by a bending machine.
摘要:
A centralized power distribution unit for a vehicular thin brushless motor includes a plurality of bus bars and a resin insulating layer that covers the bus bars. The bus bars are disposed correspondingly with phases of the motor. Each of the bus bars has a terminal portion to be connected to a battery and one or more tabs to be connected respectively to one or more windings of a stator. Each of the bus bars is shaped into a substantially annular shape by bending a molded material in a thickness direction. The molded material is obtained by stamping out a conductive metal plate into a strip-like shape. Diameters of the annular shapes of the bus bars are set to be different from one another depending on the corresponding phase of the motor. The bus bars are stacked in a radial direction of the centralized power distribution unit, mutually separated by a predetermined gap.
摘要:
A centralized power distribution unit for a vehicular thin brushless motor includes a plurality of bus bars, a resin insulation layer that covers the bus bars, and an insulating holder having a plurality of holding grooves that hold the bus bars. The bus bars are pre-bent in a thickness direction to be formed into a substantially annular shape. Each of the bus bars is provided correspondingly with a phase of the motor. The holding grooves are formed in parallel extending along a circumferential direction of the centralized power distribution unit. The bus bars are respectively inserted into the holding grooves, and are thus stacked in a radial direction of the centralized power distribution unit. The insulating holder and the bus bars are covered by the resin insulation layer.
摘要:
To produce bus bars, a conductive metal plate is stamped out into a plurality of strips simultaneously by press molding. Each strip has a tab having an L-shaped cross-section defined by a curved section and a distal end. The plurality of strips are bent in a thickness direction to obtain a plurality of rings, respectively. The rings are mutually different in diameter and have substantially the same center. The L-shaped tab of each of the rings is disposed such that the distal end of each tab is disposed substantially at a same distance from the center.
摘要:
A vehicle headlamp includes a lamp unit having a bulb attaching portion into which a bulb is inserted and attached, an outer housing configured to engage with the lamp unit at a location behind the bulb attaching portion, an inner housing disposed inside the outer housing such that a clearance is provided in a radial direction between the outer housing and the inner housing and such that, relative to the outer housing, the inner housing is movable in an axial direction and is rotatable about an axis extending in the axial direction, and a spring disposed between the outer housing and the inner housing to bias the inner housing toward the bulb in the axial direction. When the outer housing is engaged with the lamp unit, the spring biases the inner housing such that a flange of the bulb is pressed against the bulb attaching portion.
摘要:
A vehicle headlamp includes a lamp unit having a bulb attaching portion into which a bulb is inserted and attached, an outer housing configured to engage with the lamp unit at a location behind the bulb attaching portion, an inner housing disposed inside the outer housing such that a clearance is provided in a radial direction between the outer housing and the inner housing and such that, relative to the outer housing, the inner housing is movable in an axial direction and is rotatable about an axis extending in the axial direction, and a spring disposed between the outer housing and the inner housing to bias the inner housing toward the bulb in the axial direction. When the outer housing is engaged with the lamp unit, the spring biases the inner housing such that a flange of the bulb is pressed against the bulb attaching portion.
摘要:
A bus bar base member 55W is integrally joined to a holder body 51 by insert molding, thereby forming a bus bar structure 50, and the bus bar base member 55W is severed at a portion thereof into a plurality of bus bars. One side (surface) of an interconnecting portion 56 is exposed at those regions, corresponding respectively to punching holes 54, and those regions, each disposed between the adjacent punching holes 54, at an entire area thereof to provide an entire exposure surface 56A. When there is used a die 71 adapted to be held against this exposed surface, there is no need to form any convex portion of a low strength on the die 71.