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Rotary electric machine unit having rotary electric machine with cooling part and electric power conversion device

專(zhuān)利號(hào)
US11888376B2
公開(kāi)日期
2024-01-30
申請(qǐng)人
DENSO CORPORATION（JP Kariya）
發(fā)明人
Ryota Tanabe; Yuta Hashimoto; Tomohisa Sano; Tomoyuki Shinkai
IPC分類(lèi)
H02K5/20; H02K11/33; H02K5/22
技術(shù)領(lǐng)域
terminals,70e,main,in,70c,capacitor,power,direction,housing,cooling
地域： Kariya

摘要

A rotary electric machine unit including a rotary electric machine, and an electric power conversion device having a plurality of power modules. The rotary electric machine includes a stator, a rotor, and a housing. The housing includes a housing flow path through which a refrigerant flows. The power modules of the electric power conversion device and the rotary electric machine are configured to be cooled by the refrigerant.

說(shuō)明書(shū)

According to the present embodiment, the power module 110 is accommodated in the housing flow path 711 in a state where the refrigerant flows along both sides of the power module 110. In this configuration, since both the one surface 181 and the rear surface 182 of the power module 110 are directly cooled by the refrigerant, the cooling effect of the power module 110 by the refrigerant flowing through the housing flow path 711 can be enhanced. Further, in the state where the plurality of power modules 110 are immersed in the refrigerant in the housing flow path 711, all of the power modules 110 are directly cooled by the refrigerant. Therefore, it is possible to suppress that the cooling effect of the refrigerant varies between the power modules 110.

The power module 110 may be accommodated in the housing flow path 711 in a state of extending in the radial direction α. For example, as shown in FIG. 45, it is assumed that the insertion hole 703a is provided in the outer cooling part 713. In this configuration, the power module 110 is inserted into the housing flow path 711 through the insertion hole 703a in a state of extending in the radial direction β, and the output bus bar 150 is provided radially outside the housing 703. Further, the power module 110 may be housed in the housing flow path 711 in a direction in which the output bus bar 150 is arranged side by side in the housing 703 in the radial direction β.

權(quán)利要求

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