Stator and method for sealing the same

JP7639748B2Active Publication Date: 2025-03-05TOYOTA JIDOSHA KK
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Patent Information

Application Number
JP2022052601
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-28
Publication Date
2025-03-05
Estimated Expiration
2042-03-28

AI Technical Summary

Benefits of technology

【0014】 第1発明のステータによれば、(a)前記樹脂部は、前記コイルよりも前記ステータコアの径方向の一方側に位置するゲート痕を有し、(b)前記ゲート痕は、前記軸線方向における前記ステータコアの端面よりも外方側に位置し、且つ、前記巻回部の前記導線の整列方向と前記ステータコアの径方向に重なる位置にある。コイルの巻回部がステータコアの径方向の一方側とは反対向きの他方側であるヨーク側に押された状態で樹脂部に固定されやすいため、ステータの渦電流損の増加が抑制されやすい。

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Abstract

To provide a stator capable of suppressing an increase in an eddy current loss of the stator, and a method of sealing the stator.SOLUTION: A stator 10 comprises: a cylindrical stator core 20 centered at an axis line CL; a coil 52 provided being wound on a gear part 24 provided so as to project to one side in a radial direction of the stator core 20; and a resin part 72 sealing each of the stator core 20 and the coil 52. (a) The resin part 72 includes a burr mark (i.e., a gate mark) 74a positioned at one side of the radial direction of the stator core 20 relative to the coil 52, and (b) the burr mark 74a is positioned at an outer side relative to the other end surface 20b of the stator core 20 in the axis line CL direction, and is positioned at a position at which the coil 52 and the stator core 20 overlap each other in the radial direction.SELECTED DRAWING: Figure 7
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Citation Information

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