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Motor generator for vehicle

A technology for motor generators and vehicles, applied in the fields of reliability improvement such as insulation resistance, high cooling performance, miniaturization of control devices, and vibration resistance, can solve problems such as insufficient cooling of heat sinks, and improve cooling performance. , the effect of suppressing temperature rise

Active Publication Date: 2008-12-24
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the cooling air cools the heat dissipation plate corresponding to the drain side of the upper arm switch located downstream after exchanging heat with the heat sink plate corresponding to the drain side of the lower arm switch located upstream, so Corresponding heatsink does not cool sufficiently

Method used

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  • Motor generator for vehicle
  • Motor generator for vehicle
  • Motor generator for vehicle

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0057] figure 1 It is a longitudinal sectional view showing the overall configuration of the vehicle motor generator according to the embodiment of the present invention, and FIG. 2 is a circuit diagram for explaining the operation of the vehicle motor generator according to Embodiment 1 of the present invention, image 3 It is a rear end view of the vehicle motor generator according to Embodiment 1 of the present invention viewed from the rear, Figure 4 It is a rear end view of the motor generator for a vehicle according to Embodiment 1 of the present invention when the cover is removed, as seen from the rear, Figure 5 is a plan view showing the vehicle motor generator control device according to Embodiment 1 of the present invention, Figure 6 yes Figure 4 A-A sectional view, Figure 7 yes Figure 4 The B-B direction sectional view, Figure 8 yes Figure 4 The C-C cross-sectional view.

[0058] Figure 1 to Figure 3 Among them, the motor 60 constituting a part of ...

Embodiment approach 2

[0103] Figure 9 is a longitudinal sectional view showing the overall composition of a motor generator for a vehicle according to Embodiment 2 of the present invention, Figure 10 It is a rear end view of the motor generator for a vehicle according to Embodiment 2 of the present invention when the cover is removed, as seen from the rear, Figure 11 is a plan view showing a control device for a motor generator for a vehicle according to Embodiment 2 of the present invention, Figure 12 yes Figure 10 The D-D cross-sectional view, Figure 13 yes Figure 10 E-E to see the sectional view.

[0104] Figure 9 to Figure 13 Among them, in the control device 30A, the second circuit board 45A is formed into a substantially fan-shaped cross section composed of the base portion 45a and the flange portion 45b having an L-shape. Moreover, the first to third separate heat sinks 41 to 43 constituting the second heat sink 40 are arranged in a substantially fan-like shape, and molded inte...

Embodiment approach 3

[0116] Figure 14 is a longitudinal sectional view showing the overall composition of a motor generator for a vehicle according to Embodiment 3 of the present invention, Figure 15 It is a rear end view of the motor generator for a vehicle according to Embodiment 3 of the present invention viewed from the rear, Figure 16 It is a rear end view of the motor generator for a vehicle according to Embodiment 3 of the present invention when the cover is removed, as seen from the rear, Figure 17 is a plan view showing a control device for a motor generator for a vehicle according to Embodiment 3 of the present invention, Figure 18 yes Figure 16 The F-F cross-sectional view, Figure 19 yes Figure 16 G-G cross-sectional view.

[0117] Figure 14 to Figure 19 In the control device 30B, the first to third separate heat dissipation plates 41 to 43 constituting the second heat dissipation plate 40 are arranged in a substantially fan-like (C-shape) on the outer periphery of the fi...

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PUM

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Abstract

A motor generator for vehicle in which sufficient cooling performance of a heat slinger can be attained by ensuring a sufficient ventilation trunk of cooling wind within limited axial dimensions or radial dimensions. Each of first and second heat slingers having a fan-like shape is mounting an N channel power MOSFET and has the drain potential of the power MOSFET. A first circuit board comprises an insert conductor for connecting power MOSFETs in series, and a second circuit board comprises an insert conductor connected with the source terminal of the power MOSFET and having a negative potential. The first heat slinger, the second heat slinger, the first circuit board, and the second circuit board are juxtaposed radially on a plane intersecting a shaft on the outside of one axial end of a rear housing perpendicularly and arranged in a fan-like shape about the shaft.

Description

technical field [0001] The present invention relates to a motor generator for a vehicle with a built-in control device that is mounted on a vehicle to start and boost the engine and has a generator function. In particular, it relates to the miniaturization of the control device with power semiconductor elements, and also relates to high cooling performance, Improved reliability such as vibration resistance and insulation resistance. Background technique [0002] In recent years, with the background of preventing global warming, reduction of carbon dioxide emissions has been demanded, and efforts have been made to develop hybrid vehicles or idling-stop vehicles. In these vehicles, when the control device is connected to the vehicle motor generator, the distance between the control device and the vehicle motor generator is long, and the wiring becomes long. Therefore, the resistance of the wiring between the control device and the vehicle motor generator increases, and the vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00H02K5/22H02K9/02
Inventor 日野泰成浅尾淑人
Owner MITSUBISHI ELECTRIC CORP