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Rotary electric machine

A technology of rotating motors and rotating shafts, which is applied in the direction of motors, electromechanical devices, electric vehicles, etc. It can solve the problems of difficult output characteristics and heavy weight of rotating motors, and achieve the effect of accurate output characteristics and accurate control

Active Publication Date: 2010-04-07
YAMAHA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the rotor usually has coils and is heavy, it is difficult to move the entire stator with a low-output actuator
Therefore, it is also difficult to accurately change the position of the heavy-weight stator in order to accurately control the output characteristics of the rotating electric machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0054] Next, a first embodiment of the present invention will be described with reference to the drawings.

[0055] figure 1 is a side view of a motorcycle 1 equipped with a rotating electrical machine 20 having a stator 25 of the present invention, figure 2 is a side view of the rear of the motorcycle 1, image 3 is along figure 2 A cross-sectional view taken on line III-III, Figure 4 is has image 3 An enlarged view of the rotating electrical machine 20 with the stator 25 shown, Figure 5 is an exploded perspective view of the rotary electric machine 20 .

[0056] Such as figure 1 As shown, the motorcycle 1 has a front wheel 3 at the front lower part of the vehicle body, and the front wheel 3 is rotatably supported by the lower end of the front fork 5 . A steering shaft 7 extending upward is connected to an upper end portion of the front fork 5 . A handle 9 extending in the vehicle width direction is attached to an upper end portion of the steering shaft 7 . A bo...

no. 2 approach

[0108] Next, a second embodiment of the present invention will be described based on the drawings.

[0109] Figure 20 is a cross-sectional view of a rotating electrical machine 200 having a stator 250 according to a second embodiment of the present invention, Figure 21 is an exploded perspective view of the rotary electric machine 200 . Figure 22 yes Figure 20 magnified view of . In addition, in Figure 21 The crankshaft 51 is omitted. In addition, in Figure 20 The cylinder 50a etc. which are arrange|positioned at the center side of the crankshaft 51 are omitted in FIG. exist Figure 20 and Figure 21 In , the same reference numerals are assigned to the same parts as those of the stator 25 and the rotary electric machine 20 having the stator 25 described above, and description thereof will be omitted.

[0110] The rotating electrical machine 200 is a radial gap rotating electrical machine, that is, a rotating electrical machine in which a stator is disposed radia...

no. 3 approach

[0131] Next, a third embodiment of the present invention will be described based on the drawings.

[0132] Figure 26 is a cross-sectional view of a rotating electrical machine 220 having a stator 225 according to a third embodiment of the present invention, Figure 27 is an exploded perspective view of the rotary electric machine 220 . Figure 28 yes Figure 26 An enlarged view of the stator 225. In addition, in Figure 27 The crankshaft 51 is omitted in the Figure 26 The cylinder 50a etc. which are arrange|positioned at the center side of the crankshaft 51 are omitted in FIG. exist Figure 26 to Figure 28 In , the same reference numerals are assigned to the same parts as those of the rotary electric machine 200 described above, and description thereof will be omitted.

[0133] The rotating electrical machine 220 is substantially the same as the radial gap rotating electrical machine described above, and is characterized in that the stator 225 has a first stator 330 a...

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PUM

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Abstract

The invention provides the stator of a rotary electric machine in which the output characteristics can be controlled accurately. The stator (25) of an axial gap rotary electric machine comprises a first annular stator (30) having a plurality of first teeth (34) arranged annularly to surround the axis of a crankshaft (51), and a second annular stator (40) having a plurality of second teeth (41) arranged oppositely to the plurality of first teeth (34) in the axial direction and rotatable about the axis by being attracted to the first stator (30) side by magnetic force. A coil (31) is wound around each of the plurality of first teeth (34), the first stator 30 has a face 36h abutting against the second stator (40), and the clearance k in the axial direction is regulated between the surface ofthe first stator (30) facing the second stator (40) and the surface of the second stator (40) facing the first stator (30).

Description

technical field [0001] The present invention relates to a stator of a rotating electric machine, a rotating electric machine, an engine connected to the rotating electric machine, and a vehicle mounted with the rotating electric machine, and particularly relates to a technique for changing output characteristics of the rotating electric machine. Background technique [0002] So far, as rotating electrical machines (electric motors that also function as generators) used in straddle-type vehicles, mainly motorcycles, there are: a type that assists the driving force of the engine to drive the vehicle; The type of vehicle driven by its own driving force. [0003] Generally, output characteristics such as rotational speed and torque of a rotary electric machine are limited within a narrow range by the mechanism of the rotary electric machine. For example, a rotating electric machine driven with a high torque having a field magnet emitting a strong magnetic flux cannot be driven ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/116
CPCY02T10/7077Y02T10/641
Inventor 日野阳至中岛真澄
Owner YAMAHA MOTOR CO LTD
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