Drive device
A driving device and motor technology, which is applied to electromechanical devices, cooling/ventilating devices, connecting with control/driving circuits, etc., can solve the problems of inability to use lubricating fluid to cool, and the rotating electrical machine is easy to increase in size, and achieve the effect of cooling suppression.
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no. 1 approach ＞
[0026] Such as Figure 1 to Figure 4 As shown, the drive device 10 of this embodiment includes a housing 20 , a motor 30 , an inverter unit 40 , a bus bar 70 , a liquid cooling unit 50 , piping units 61 and 62 , and a differential device 80 . The casing 20 accommodates the motor 30 and the differential device 80 . Such as image 3 As shown, the housing 20 has a first storage portion 21 and a second storage portion 22 .
[0027] The first housing portion 21 houses the motor 30 . The first housing portion 21 has a cylindrical portion 21a and a protruding portion 21b. The cylindrical part 21a has a substantially cylindrical shape extending in the axial direction X. As shown in FIG. exist image 3 Among them, the lower side of the protruding portion 21b protrudes slightly obliquely from the cylindrical portion 21a toward one side in the first direction. The cross-sectional shape of the protruding portion 21b perpendicular to the axial direction X is a trapezoid whose width d...
no. 2 approach ＞
[0066] Such as Figure 7 and Figure 8 As shown, in the driving device 110 of the present embodiment, a part of the piping portion 161 is arranged in the first housing portion 121 . In more detail, as Figure 8 As shown, the piping part 161 is inserted into the first receiving part 121 from one side of the axial direction of the first receiving part 121 , turns back in a U shape in the first receiving part 121 , and is turned from the axial direction of the first receiving part 21 One side protrudes toward the outside of the first storage portion 121 . Thereby, the piping part 161 passes through the inside of the casing 120 . Therefore, the inside of the casing 120 can be cooled through the piping portion 161 , and the oil O stored in the casing 120 can be easily cooled.
[0067] As described above, according to the present embodiment, the oil O in a storage state can be cooled through the piping portion 161 , and therefore it is easier to sufficiently cool the oil O than ...
no. 3 approach ＞
[0084] Such as Figure 10 As shown, in the driving device 310 of the present embodiment, the liquid cooling unit 350 is fixed to the lateral side of the protruding portion 21b on one side in the width direction. The first inverter unit 343 is fixed to a side surface of the liquid cooling unit 350 on one side in the width direction. The drive device 310 includes a second liquid cooling unit 356 . The second liquid cooling part 356 is fixed to the side surface on the other side in the width direction of the protruding part 21b. Thus, the second liquid cooling portion 356 is in thermal contact with the housing 20 . The refrigerant liquid passes through the inside of the second liquid cooling unit 356 . The configuration of the second liquid cooling part 356 may be, for example, Figure 6 The liquid cooling section 50 shown is of the same construction.
[0085] Such as Figure 10 As shown, the driving device 310 has piping portions 361 , 362 , and 363 . The piping part 361 ...
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