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drive unit

A driver and radiator technology, which is applied in the direction of electromechanical devices, connection with control/drive circuits, electric components, etc., can solve the problem of large welded parts, and achieve the effect of small size and tool area saving

Active Publication Date: 2019-06-21
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the welding process, the part to be welded must be held by a jig or the like, which may result in a larger part to be welded in order to provide some place on the part to be clamped by the jig

Method used

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Experimental program
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Effect test

no. 1 approach

[0039] based on Figure 1 to Figure 7 The driver device in the first embodiment of the present disclosure will be described. Figure 1 to Figure 7 The figures in the drawings are illustrative and exemplary. The figures in the second embodiment and subsequent figures are likewise explanatory and exemplary figures.

[0040] Such as figure 1 As shown, the driver device 1 in the first embodiment of the present disclosure is applied to, for example, an electric power steering device of a vehicle. The driver device 1 is provided with a motor 10 and a control unit 30 . The driver device 1 of the present embodiment is formed as an integrated device that accommodates the control unit 30 and the motor 10 in one body and arranges the control unit 30 on one axial end side of the motor 10 .

[0041] The motor 10 includes a motor housing 11, a stator 12, a rotor 14, a shaft 15, a first frame 21, a second frame 22, and the like. The motor 10 of this embodiment is a three-phase brushless...

no. 2 approach

[0113] exist Figure 8 and Figure 9 A driver device in a second embodiment of the present disclosure is shown in . Figure 8 and Figure 9 corresponding to the first embodiment Figure 4 and Figure 5 . exist Figure 8 The motor terminal 53 and the motor wiring 133 are omitted in FIG. This also applies to other embodiments.

[0114] In this embodiment, the module mounting surface 37 of the heat sink 35 is inclined so that the motor 10 side end of the surface 37 is radially outward with respect to the rotation center axis S of the motor 10 than the opposite end of the surface 37 . That is, the distance between the motor 10 side end portions of the surface 37 is larger than the distance between the opposite side end portions of the surface 37 . Therefore, when the heat sink 35 is manufactured by die casting, the heat sink 35 can be properly pulled out from the metal mold without requiring additional processes such as cutting burrs.

[0115] Furthermore, even when the m...

no. 3 approach

[0123] The driver device in the third embodiment of the present disclosure is Figure 10 and Figure 11 shown in .

[0124] Figure 10 and Figure 11 corresponding to the first embodiment Figure 4 and Figure 5 Since the power terminal 46 and the power terminal connection hole 322 in this embodiment are different from the power terminal 46 and the power terminal connection hole 322 in the first embodiment, the description of the power terminal 46 and the power terminal connection hole is concentrated in this embodiment. 322.

[0125] The power terminal connection hole 323 drilled in the power board 32 is positioned inside the terminal protrusion position T where the power terminal 46 protrudes from the molded body 42 . The power terminal connection hole 323 of this embodiment takes a substantially circular shape.

[0126] When the power supply terminal 46 is divided into two sides—that is, the tip side of the terminal 46 connected by the bent portion 465 and the molded...

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PUM

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Abstract

The invention provides a drive device (1) having a semiconductor module (40) in which a motor terminal (51) protrudes from a molded body (42) and is connected to a motor connection (131). The heat sink (35) of the driver device has a module mounting surface (36) extending axially outward from the axial end of the motor part (10) on which the semiconductor module is fastened . The motor terminal (51) includes a base region (511) on the molded body side in the bent position (513) and an extension region (512) on the tip side in the bent position. The extension area has a connection portion (514) on which the insertion hole (515) receives the motor wiring (131). The terminal angle (α1) between the extended area and a vertical line (P) perpendicular to the motor wiring is greater than zero degrees. Thus, the volume of the driver device is reduced.

Description

technical field [0001] The present disclosure generally relates to a driver device. Background technique [0002] Generally, in a rotating electrical machine having a motor and a controller in a single body, the controller can be positioned on the axial end of the motor, as shown in Patent Document 1 (ie, Japanese Patent No. JP-A-2011-177000) . Additionally, the power modules in such rotating electrical machines can be connected to the motor wiring extending from the three-phase windings. The extension of the motor wiring from the windings may or may not have a circuit board interposed therebetween. [0003] In Patent Document 1, the motor has a flat-shaped terminal that surface-contacts motor wiring to allow soldering or the like. However, during the welding process, the part to be welded must be held by a jig or the like, which may result in a larger part to be welded in order to provide some place on the part to be clamped by the jig. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/33H02K3/50
CPCH02K3/50H02K2213/03H02K11/33H02K5/225H02K11/05H02K5/22H02K11/38
Inventor 平峯干大山崎雅志藤田敏博
Owner DENSO CORP