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Stator For Electric Rotary Machine

A technology for rotating electrical machines and stators, applied in the shape/style/structure of winding conductors, etc., can solve problems such as temperature rise, and achieve the effect of suppressing performance degradation and temperature rise.

Active Publication Date: 2017-12-08
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the case of cooling the stator coils by supplying refrigerant from above, the refrigerant does not spread to the lower coils in the vertical direction, which may cause a local temperature rise.

Method used

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  • Stator For Electric Rotary Machine
  • Stator For Electric Rotary Machine
  • Stator For Electric Rotary Machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] Hereinafter, an embodiment of a stator of a rotating electrical machine according to the present invention will be described based on the drawings. It should be noted that the drawings are viewed along the direction of the symbols.

[0075] [stator]

[0076] Such as figure 1 and figure 2 As shown, the stator 10 of the rotating electrical machine according to this embodiment includes a stator core assembly 20 and a pair of base plate assemblies 30L, 30R. The base plate assemblies 30L, 30R are arranged and assembled on both sides of the stator core assembly 20 . An insulating sheet 65 such as a silicon wafer is arranged between the stator core assembly 20 and the base plate assemblies 30L, 30R to insulate the stator core assembly 20 and the base plate assemblies 30L, 30R.

[0077] [1 stator core assembly]

[0078] The stator core assembly 20 includes a stator core 21 and a plurality (108 in the illustrated embodiment) of slot coils 25 .

[0079] [1-1 stator core]

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PUM

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Abstract

A stator for an electric rotary machine includes: a stator core which has plural slots; and segmented coils of a plurality of phases, wherein: the stator core is provided with a base plate at least one side thereof in an axial direction; the segmented coils of the plurality of phases include plural slot coils which are individually disposed in the plural slots of the stator core and which extend substantially linearly, and plural connection coils which are individually disposed in the base plate and which make up bridge portions by connecting the slot coils of a same phase together; the connection coil is accommodated in a connection coil accommodating groove formed on a front surface of the base plate; and the base plate is provided with a communication portion on an outer circumferential surface thereof for communicating with the connection coil accommodating groove.

Description

technical field [0001] The present invention relates to a stator that can be mounted on a rotating electric machine such as an electric vehicle, a hybrid vehicle, or the like. Background technique [0002] As a stator of a rotary electric machine, a rotary electric machine using segmented coils has been proposed. For example, in Patent Document 1, a coil loop is formed by caulking a slot coil arranged in a slot of the stator core and a connecting coil arranged outside the stator core as an overlapping portion by caulking. [0003] On the other hand, in recent years, the output of rotating electric machines has increased. The performance of rotating electric machines deteriorates as the temperature of the stator coils rises, so countermeasures such as cooling the stator coils are being studied. For example, it has been proposed to supply a refrigerant from above the coil end toward the coil end to cool the stator coil. [0004] prior art literature [0005] patent documen...

Claims

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Application Information

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IPC IPC(8): H02K3/28
CPCH02K3/28H02K3/12H02K3/24
Inventor 田中宏树
Owner HONDA MOTOR CO LTD