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US 2007/0182265 A1Published application
Stator
AssigneeAsmo Co., Ltd.
InventorsTakashi Makino, Atsushi Fujiyama
Life of this patent
Estimating the term…
Abstract
A connecting wire extends from a first tooth to a second tooth so as to connect a plurality of coils. An extension portion is provided to an insulator so as to extend in the axial direction. The extension portion has a distal end in the axial direction, a proximal end, notches which extend from the distal end to the proximal end, and a radially outer surface. The connecting wire extends from the first tooth and is positioned by the bottom surface and the side surfaces of a notch. The connecting wire is led out from the notch in the radial direction of the extension portion, and arranged along the radially outer surface so as to run toward the second tooth. Accordingly, the connecting wire can be arranged with ease.
Claims20
A stator, comprising:
- a stator core having an annular portion defining an axial direction and a plurality of teeth which extend inward from the annular portion in the radial direction;
- an insulator having an annular coating portion for coating the annular portion and a plurality of tooth coating portions which extend inward from the annular coating portion in the radial direction in order to coat the respective teeth;
- a plurality of coils, each of which is formed of a lead wire wound around a tooth from among the teeth in such a state as to be coated with the tooth coating portions, wherein the teeth include a first tooth and a second tooth around which the lead wire is wound after being wound around the first tooth;
- a connecting wire which includes a portion of the lead wire which extends from the first tooth to the second tooth so as to connect the coils;
- and
- an extension portion which is provided to the annular coating portion so as to extend in the axial direction, wherein the extension portion has:
- a distal end in the axial direction;
- a proximal end;
- a notch which extends from the distal end toward the proximal end;
- a bottom surface and side surfaces for defining the notch;
- and a radially outer surface, and the connecting wire is arranged so as to extend from the first tooth, be positioned by the bottom surface and the side surfaces, be led out from the notch in the radial direction of the extension portion, run along the radially outer surface, and be directed to the second tooth.
8 more elements
A stator, comprising:
- a stator core having an annular portion defining an axial direction and a plurality of teeth which extend inward from the annular portion in the radial direction;
- an insulator having an annular coating portion for coating the annular portion and a plurality of tooth coating portions which extend inward from the annular coating portion in the radial direction in order to coat the respective teeth, wherein the annular coating portion has an engaging portion which extends in the radial direction;
- a plurality of coils, each of which is formed of a lead wire wound around a tooth from among the teeth in such a state as to be coated with the tooth coating portions, wherein the teeth include a first tooth and a second tooth around which the lead wire is wound after being wound around the first tooth;
- a connecting wire which includes a portion of the lead wire which extends from the first tooth to the second tooth so as to connect the coils;
- and
- an extension portion which is provided to the annular coating portion so as to extend in the axial direction, wherein the extension portion has a radially outer surface, and the connecting wire is arranged so as to extend from the first tooth, be positioned by engaging with the engaging portion, be led outward in the radial direction of the extension portion, and run along the radially outer surface in order to be directed to the second tooth.
3 more elements
A stator, comprising:
- a stator core having an annular portion defining an axial direction and a plurality of teeth which extend inward from the annular portion in the radial direction, wherein the teeth are formed integrally with the annular portion;
- an insulator having an annular coating portion for coating the annular portion and a plurality of tooth coating portions which extend inward from the annular coating portion in the radial direction in order to coat the respective teeth;
- a plurality of coils, each of which is formed of a lead wire wound around a tooth from among the teeth in such a state as to be coated with the tooth coating portions, wherein the coils include a first tooth and a second tooth around which the lead wire is wound after being wound around the first tooth;
- a connecting wire which includes a portion of the lead wire which extends from the first tooth to the second tooth so as to connect the coils;
- and
- an extension portion which is provided to the annular coating portion so as to extend in the axial direction, wherein the extension portion has:
- a distal end in the axial direction;
- a proximal end;
- a first notch which extends from the distal end toward the proximal end;
- a first bottom surface and first side surfaces for defining the first notch;
- a second notch which extends from the distal end toward the proximal end;
- a second bottom surface and second side surfaces for defining the second notch;
- and a radially outer surface,
- wherein the connecting wire is arranged so as to extend from the first tooth, be positioned by the first bottom surface and the first side surfaces, and thus, be led outward from the inside in the radial direction of the extension portion and run along the radially outer surface in order to be directed to the second tooth, and is positioned by the second bottom surface and the second side surfaces, and thus, is led inward from the outside in the radial direction of the extension portion.
11 more elements
A stator, comprising:
- a stator core having an annular portion defining an axial direction and a plurality of teeth which extend inward from the annular portion in the radial direction, wherein the teeth are formed integrally with the annular portion;
- an insulator having an annular coating portion for coating the annular portion and a plurality of tooth coating portions which extend inward from the annular coating portion in the radial direction in order to coat the respective teeth, wherein the annular coating portion has a first engaging portion and a second engaging portion which extend in the radial direction;
- a plurality of coils, each of which is formed of a lead wire wound around a tooth from among the teeth in such a state as to be coated with the tooth coating portions, wherein the teeth include a first tooth and a second tooth around which the lead wire is wound after being wound around the first tooth;
- a connecting wire which includes a portion of the lead wire which extends from the first tooth to the second tooth so as to connect the coils;
- and
- an extension portion which is provided to the annular coating portion so as to extend in the axial direction, wherein the extension portion has a radially outer surface, and the connecting wire is arranged so as to be led out in the radial direction from the coil which is wound around the first tooth starting from the inside in the radial direction, positioned by engaging with the first engaging portion and run along the radially outer surface in order to be directed to the second tooth, and is positioned by engaging with the second engaging portion, and thus, is led inward from the outside in the radial direction of the extension portion.
3 more elements
A stator, comprising:
- a stator core having an annular portion defining an axial direction and a plurality of teeth which extend inward from the annular portion in the radial direction;
- an insulator having an annular coating portion for coating the annular portion and a plurality of tooth coating portions which extend inward from the annular coating portion in the radial direction in order to coat the respective teeth;
- a plurality of coils, each of which is formed of a lead wire wound around a tooth from among the teeth in such a state as to be coated with the tooth coating portions, wherein the teeth include a first tooth and a second tooth around which the lead wire is wound after being wound around the first tooth;
- a connecting wire which includes a portion of the lead wire which extends from the first tooth to the second tooth so as to connect the coils;
- and
- an extension portion which extends from the annular coating portion in the axial direction, wherein the extension portion has:
- a distal end in the axial direction;
- a proximal end;
- a first notch and a second notch which extend from the distal end toward the proximal end;
- a side wall;
- and a radially outer surface, and the connecting wire is led out from the first notch in the radial direction of the extension portion, arranged so as to run along the radially outer surface in order to be directed to the second tooth, and bent by the side wall to an angle which exceeds 90°, and thus, led inward from the second notch in the radial direction of the extension portion.
8 more elements
A stator, comprising:
- a stator core having an annular portion defining an axial direction and a plurality of teeth which extend inward from the annular portion in the radial direction, wherein the teeth are formed integrally with the annular portion;
- an insulator having an annular coating portion for coating the annular portion and a plurality of tooth coating portions which extend inward from the annular coating portion in the radial direction in order to coat the respective teeth, wherein the annular coating portion has a first engaging portion and a second engaging portion which extend in the radial direction;
- a plurality of coils, each of which is formed of a lead wire wound around a tooth from among the teeth in such a state as to be coated with the tooth coating portions, wherein the teeth include a first tooth and a second tooth around which the lead wire is wound after being wound around the first tooth;
- a connecting wire which includes a portion of the lead wire which extends from the first tooth to the second tooth so as to connect the coils;
- and
- an extension portion which is provided to the annular coating portion so as to extend in the axial direction, wherein the extension portion has a radially outer surface, and the connecting wire is arranged so as to be led out in the radial direction from the coil which is wound around the teeth starting from the inside in the radial direction, positioned by engaging with the engaging portion and run along the radially outer surface in order to be directed to the second tooth, and positioned so as to be bent to an angle which exceeds 90° by engaging with the second engaging portion, and thus, led inward from the outside in the radial direction of the extension portion.
3 more elements
A stator, comprising:
- a stator core having an annular portion defining an axial direction and a plurality of teeth which extend inward from the annular portion in the radial direction;
- an insulator having an annular coating portion for coating the annular portion and a plurality of tooth coating portions which extend inward from the annular coating portion in the radial direction in order to coat the respective teeth, wherein the annular coating portion has a first engaging portion and a second engaging portion which extend in the radial direction;
- a plurality of coils, each of which is formed of a lead wire wound around a tooth from among the teeth in such a state as to be coated with the tooth coating portions, wherein the teeth include a first tooth and a second tooth around which the lead wire is wound after being wound around the first tooth;
- a connecting wire which includes a portion of the lead wire which extends from the first tooth to the second tooth so as to connect the coils;
- and
- an extension portion which is provided to the annular coating portion so as to extend in the axial direction, wherein the extension portion has a radially outer surface, and the connecting wire is arranged so as to extend from the first tooth, be positioned by engaging the first engaging portion, led outward in the radial direction of the extension portion and run along the radially outer surface in order to be directed to the second tooth, and positioned so as to be bent to an angle which exceeds 90° by engaging with the second engaging portion, and thus, led inward from the outside in the radial direction of the extension portion.
3 more elements
Dependencies are inferred from the claim text.