 Electric motor and electric power steering apparatus employing the electric motor |
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| Electrical angle detecting apparatus and method, and motor control apparatus |
| The invention is intended to solve the aforementioned problems. It is an object of the invention to ... |
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| Motor |
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| Permanent magnet motor |
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| Interior permanent magnet synchronous motor |
| The present invention has been made in view of the foregoing disadvantage of the prior art. A... |
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| Electric machine with integrated power electronics |
| Referring now to FIG. 1, an electric machine 10 is illustrated in a circumference mount ... |
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| Brushless motor for partable electronic equipment with wire treatment technique of coils |
| Thus, the present invention has an object to provide a wire treatment technique which can make ... |
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| Spindle motor |
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| Lanced strip and edgewise wound core |
| Among the several objects of the present invention may be noted the provision of an improved ... |
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Insulating member for a core of a motor
| Details |
Inventors: Uchida, Hiroyuki; Yamamoto, Tomonaga; Tamaki, Takeshi;
Assignee: Fanuc Ltd. (Yamanashi, JP)
Primary Examiner: Stephan; Steven L.
Assistant Examiner: Enad; Elvin G.
Attorney, Agent or Firm: Staas & Halsey
An insulating member (10), which is disposed in each of slots (20) in a stator core (16) of a motor in order to insulate electrically the core (16) and windings (22) set in the slots (20), comprises a main insulating section 30, which covers the inner wall surface of the slot (20), and auxiliary insulating sections (32) having desired flexibility and flexural repulsiveness to substantially close and opening (26) of the slot. The auxiliary insulating sections (32) are easily deformed to allow the slot opening (26) to open partially when it is subjected to an external force, and are restored to their original state such that the opening (26) is closed when the external force is removed. |
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DETAILED DESCRIPTION We claim: 1.
A single insulating member for a core of a motor, the single insulating member electrically insulating a stator core of the motor, formed with a plurality of sets of slots and slot openings arranged in a circumferential direction thereof so that teeth are formed between the adjacent slots, and windings are set in the slots, comprising: n main insulating sections which have boundary lines on either side thereof, extending substantially parallel to the axial direction of the stator, and a region capable of covering the whole inner wall surface of a slot extending parallel to the axial direction of the stator; and n auxiliary insulating sections integrally extending from said individual boundary lines on either side of each of the main insulating sections, in directions perpendicular to the axial direction of the stator, and having the respective distal end edges thereof butting on or overlapping each other in the center of the slot opening, thereby substantially closing said slot opening, wherein said n auxiliary insulating sections are formed of a material such that a region thereof or a region in the vicinity thereof is deformed to open the slot opening partially when an external force of a magnitude of at least a predetermined level is applied to the region and is restored to the original form thereof to close the slot opening when the external force is removed, and wherein n is equal to the number of slots in the core.
2.
A single insulating member for a core of a motor according to claim 1, wherein said main insulating sections cover an inner peripheral surface of the core, side faces of the teeth, and respective inner surfaces of hoods projecting individually from the opposite sides of the respective distal ends of the teeth in the circumferential direction around an axis of a rotor which comprise the inner wall surface of the slot, and said boundary lines on both sides defining regions for the main insulating sections, being substantially in line with the positions of the respective distal end edges of said hooks, so that proximal end edges of the auxiliary insulating sections, extending individually from said boundary lines on both sides of the main insulating section, are substantially in line with positions of respective distal end edges of said hooks
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Generators or Motors 
