Driving device and electric power steering device including driving device
A technology of driving device and driving components, which is applied in the field of driving device and electric power steering device, and can solve problems such as the phase arrangement sequence of three-phase inverters that are not mentioned
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no. 1 approach
[0033] exist Figure 1 to Figure 11 The drive device and the electric power steering device in the first embodiment of the present disclosure are shown in . Hereinafter, in all the embodiments described below, the same reference numerals denote the same components for the purpose of concise description.
[0034] Such as figure 1 As shown, the drive device 1 is applied to an electric power steering device 8 for assisting the steering operation by the driver. The drive device 1 is an integral combination of an electric motor 10 serving as a rotating electric machine and an ECU 40 serving as a controller for controlling the electric motor 10 .
[0035] figure 1 A system diagram of a steering system 100 having an electric power steering device 8 is shown. The electric power steering system 100 includes a steering wheel 101 , a column shaft 102 , a pinion 104 , a rack shaft 105 , wheels 106 , and an electric power steering device 8 , etc., which serve as components of the sys...
no. 2 approach
[0154] exist Figure 12 to Figure 17 The drive device in the second embodiment of this embodiment is shown in . Figure 12 is the driving device along the Figure 15 Sectional view of line XII-XII. In the drawings related to this embodiment, the capacitors 86 and 87 are omitted in some cases.
[0155] The driving device 2 is provided with a motor 210 as a rotating electric machine, a front frame end 215, a rear frame end 220, an ECU 240 as a controller, a connector 280, a cover member 290, and the like. According to the present embodiment, the rear frame end 220 corresponds to a "substrate" in the claims. Since the electrical configuration of the driving device 2 is the same as that of the above-described embodiment, description of the electrical configuration is omitted.
[0156] as in Figure 12 to Figure 15 As shown in , the motor 210 is provided with a stator 212, a rotor 15, a shaft 16, and the like.
[0157] The stator 212 has a front frame end 215 and a rear frame...
no. 3 approach
[0190] refer to Figure 18 A third embodiment of the present disclosure will be described. Figure 18 is an explanatory cross section of the drive device 3 from which the connector and the like are omitted. In addition, hatching of SW elements is also omitted. Figure 19 with Figure 20 There is also the same treatment.
[0191] The ECU 340 of the driving device 3 is different from the above-mentioned embodiment. The ECU 340 has a substrate 341 , an intermediate member 350 , and a radiator 355 arranged in writing order from the motor 10 side. The heating element mounting surface 342 of the substrate 341 facing the motor 10 has the SW elements 51-56, 61-66 mounted thereon. The arrangement of SW elements 51-56, 61-66 on the surface 342 and Figure 10 The layout is the same. That is, like the above-described embodiment, in terms of phase arrangement from the power supply region Rin side, the arrangement of the first motor wire 135 and the SW elements 51-56 is different fro...
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