WIRE-CONNECTION STRUCTURE OF MOTOR
First Claim
1. A wire-connection structure of a motor, comprising:
- an annular stator including coils of a plurality of phases, the coils being arranged alternately in a circumferential direction;
bus rings of a plurality of phases, each of the bus rings being formed by a bent wire material into a substantially annular shape and arranged along the stator;
windings of the coils of the same phase being arranged at predetermined intervals and wire-connected to each other by the corresponding bus ring, wherein the bus rings comprises;
a plurality of large diameter portions and a plurality of small diameter portions extending alternately in the circumferential direction; and
a plurality of link portions extending in a radial direction and connecting the adjacent large diameter portion and small diameter portion to each other, and wherein the windings of the coils are wire-connected to the link portions.
1 Assignment
0 Petitions
Accused Products
Abstract
In a wire-connection structure of a motor, bus rings each formed by a bent wire material into a substantially annular shape and arranged along a stator includes: a plurality of large diameter portions and a plurality of small diameter portions extending alternately in a circumferential direction; and a plurality of link portions extending in a radial direction and connecting the adjacent large diameter portion and small diameter portion to each other. Windings of the coils are wire-connected to the link portions. Therefore, it is unnecessary to form the link portions of the bus rings into a U-shape or double-wire overlapping shape, thereby facilitating processing. Moreover, the width of the wire-connection portion in the circumferential direction does not exceed the thickness of a single wire material, thereby facilitating connection work by a crimping tool in a narrow space. Thus, the structure of a crimping portion for fixing by crimping the winding of the coil to the bus ring is simplified, and a space for inserting the crimping tool is secured to improve workability.
-
Citations
6 Claims
-
1. A wire-connection structure of a motor, comprising:
-
an annular stator including coils of a plurality of phases, the coils being arranged alternately in a circumferential direction;
bus rings of a plurality of phases, each of the bus rings being formed by a bent wire material into a substantially annular shape and arranged along the stator;
windings of the coils of the same phase being arranged at predetermined intervals and wire-connected to each other by the corresponding bus ring, wherein the bus rings comprises;
a plurality of large diameter portions and a plurality of small diameter portions extending alternately in the circumferential direction; and
a plurality of link portions extending in a radial direction and connecting the adjacent large diameter portion and small diameter portion to each other, andwherein the windings of the coils are wire-connected to the link portions. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification