Drive device and method for manufacturing drive device

Abstract

A drive device for a vehicle is provided. A drive device for a vehicle includes: a motor including a motor shaft; the motor shell is used for accommodating the motor; a first housing that accommodates the gear unit mechanically connected to the motor; and a second housing that accommodates the power conversion unit electrically connected to the motor. The first housing and the second housing are respectively fixed on one side of the motor housing in the axial direction of the motor shaft.

Description

Technical Field

[0001] This application claims priority based on Japanese Patent Application No. 2023-182701, filed on October 24, 2023. The entire contents of that application are incorporated herein by reference. The technology disclosed in this specification relates to a drive system for a vehicle and a method for manufacturing the drive system. Background Technology

[0002] The vehicle drive unit disclosed in Japanese Patent Application Publication No. 2014-24489 has an integrated structure of motor, gear unit and power conversion unit. Summary of the Invention

[0003] The problem that the invention aims to solve

[0004] In integrated structures that combine motors, gear units, and power conversion units, the space available for the power conversion unit is sometimes limited. As a result, the assemblability of the power conversion unit may be compromised.

[0005] Methods for solving problems

[0006] The vehicle drive unit disclosed in this specification includes: an electric motor with a motor shaft; a motor housing that houses the motor; a first housing that houses a gear unit mechanically connected to the motor; and a second housing that houses a power conversion unit electrically connected to the motor. The first and second housings are respectively fixed to one side of the motor housing along the axial direction of the motor shaft.

[0007] According to the above structure, the first housing housing the gear unit and the second housing housing the power conversion unit can be assembled independently. Since the power conversion unit can be installed with the second housing detached from the motor housing, installation of the power conversion unit is not affected by the second housing. This improves the assemblability of the power conversion unit. Attached Figure Description

[0008] Figure 1 This is a cross-sectional view showing the general structure of the drive unit 1.

[0009] Figure 2 This is a three-dimensional view of drive unit 1.

[0010] Figure 3 This is an exploded plan view of drive unit 1.

[0011] Figure 4 This is a flowchart illustrating the assembly process of the power conversion unit 21.

[0012] Figure 5 This is a perspective view of the drive unit 1001 of the comparative example.

[0013] Figure 6 This is a perspective view of the drive unit 201.

[0014] Figure 7 This is a perspective view of the drive unit 301. Detailed Implementation

[0015] The first housing can be configured to be assembled to one side of the motor housing while the second housing is fixed to one side of the motor housing. The second housing can be configured to be assembled to one side of the motor housing while the first housing is fixed to one side of the motor housing.

[0016] Based on the above structure, the first housing and the second housing can be assembled independently of each other.

[0017] At least a portion of the second housing may overlap with the first housing in a direction perpendicular to the axial direction of the motor shaft.

[0018] According to the above structure, the axial protrusion of the second housing towards the motor shaft can be reduced. This enables the miniaturization of the drive unit.

[0019] One side of the motor housing may have a first fixing surface for fixing the first housing and a second fixing surface for fixing the second housing. The first fixing surface and the second fixing surface may be located in the same plane.

[0020] Based on the above structure, the mounting surfaces of the first housing and the second housing can be shared, which simplifies the assembly process.

[0021] The power conversion unit can be fixed to one side of the motor housing. The second housing can be configured to be assembled to one side of the motor housing while the power conversion unit is fixed to one side of the motor housing.

[0022] Based on the above structure, the assembly freedom of the power conversion unit can be increased.

[0023] The power conversion unit can be fixed to the second housing. The second housing can be configured to be assembled on one side of the motor housing while the power conversion unit is fixed to the second housing.

[0024] Based on the above structure, the assembly freedom of the power conversion unit can be increased.

[0025] The power conversion unit may include a first component containing a converter and a second component, namely an electronic component electrically connected to the converter. The first component may be configured to be assembled onto one side of the motor housing or the second housing while the second component is fixed to one side of the motor housing or the second housing. The second component may be configured to be assembled onto one side of the motor housing or the second housing while the first component is fixed to one side of the motor housing or the second housing.

[0026] Based on the above structure, by configuring the segmented power conversion units so that they can be assembled independently, the installation space can be effectively utilized. This simplifies the installation process of the power conversion units.

[0027] One of the first and second components can be fixed to one side of the motor housing. The other of the first and second components can be fixed to the second housing.

[0028] Based on the above structure, the segmented power conversion units can be fixed to different locations, simplifying the installation process of the power conversion units.

[0029] The second housing may include a housing body portion having an opening and a cover portion covering the opening. The other of the first and second components may be fixed to the cover portion.

[0030] Based on the above structure, the segmented power conversion units can be fixed to different locations, simplifying the installation process of the power conversion units.

[0031] The second component may include a sensor that detects at least one of voltage, current, and temperature within the power conversion unit.

[0032] One embodiment of the manufacturing method for a vehicle drive unit disclosed in this specification is a method for manufacturing a vehicle drive unit comprising: a motor housing housing a motor; a first housing housing a gear unit mechanically connected to the motor; and a second housing housing a power conversion unit electrically connected to the motor. The manufacturing method includes a step of mounting the first housing to one side of the motor housing along the axial direction of the motor. The manufacturing method also includes a step of mounting the power conversion unit to one side of the motor housing while the first housing is mounted to one side. Finally, the manufacturing method includes a step of mounting the second housing to one side of the motor housing while the first housing and the power conversion unit are mounted to one side.

[0033] Based on the above structure, the power conversion unit can be installed before the second housing is installed, thus avoiding interference from the second housing during installation. This improves the assemblability of the power conversion unit.

[0034] Example 1

[0035] (Structure of drive unit 1)

[0036] Figure 1This is a cross-sectional view showing the schematic structure of the drive unit 1 in this embodiment. The drive unit 1 is an integrated device that houses the motor, gear unit, and power conversion unit for controlling the motor within the same housing. Directions FR, RH, and UP indicate the orientation of the drive unit 1 relative to a vehicle (electric vehicle) when it is mounted on the vehicle. Direction FR indicates the front in the vehicle's longitudinal direction. Direction RH indicates the right side in the vehicle's left-right direction (or width direction). Direction UP indicates the upper side in the vehicle's vertical direction. The same applies in other figures. Furthermore, in... Figure 1 In the diagram, multiple axes (motor shaft 43, secondary shaft 52, drive shafts 57L and 57R) are shown unfolded in the same plane.

[0037] The drive unit 1 is controlled by the control unit 2. The control unit 2 includes a CPU, RAM, ROM, input / output interfaces, etc. The control unit 2 is connected to the power conversion unit 21, etc., via signal lines not shown.

[0038] The drive unit 1 includes a housing 10. The housing 10 includes a first housing 11, a second housing 12, and a motor housing 13. The first housing 11, the second housing 12, and the motor housing 13 may be castings.

[0039] The motor housing 13 includes a motor compartment 31. A motor 40 is housed within the motor compartment 31. In other words, the motor housing 13 houses the motor 40. The motor 40 includes a stator 41, a rotor 42, and a motor shaft 43. The stator 41 has a cylindrical shape. The rotor 42 is rotatably disposed inside the stator 41. The motor shaft 43 has a central shaft CA.

[0040] Additionally, the motor housing 13 has a facing surface 13s opposite to the first housing 11 and the second housing 12. A motor shaft hole MH and a drive shaft hole DH1 are formed on the facing surface 13s. The motor shaft 43 passes through the motor shaft hole MH. The drive shaft 57L on the left side passes through the drive shaft hole DH1.

[0041] The first housing 11 has a box shape with one open side. The first housing 11 is fastened to the opposing surface 13s such that the open side is blocked by the opposing surface 13s. The fastening method will be described later. Thus, a first space SP1 is defined between the motor housing 13 and the first housing 11. The gear unit 50 is housed in the first space SP1. In other words, the first housing 11 houses the gear unit 50.

[0042] The gear unit 50 includes a shaft gear 51, a countershaft 52, a first countershaft gear 53, a second countershaft gear 54, a gear ring 55, and a differential gear 56. The shaft gear 51 is mounted on the motor shaft 43. Thus, the gear unit 50 is mechanically connected to the motor 40. The first countershaft gear 53 and the second countershaft gear 54 are mounted on the countershaft 52. The first countershaft gear 53 meshes with the shaft gear 51. The second countershaft gear 54 meshes with the gear ring 55. The gear ring 55 is mounted on the differential gear 56. A pair of drive shafts 57L and 57R extend from the differential gear 56 in the vehicle width direction. The drive shaft 57R passes through a drive shaft hole DH2 formed in the first housing 11. A storage section 58 is provided in the lower part of the first space SP1. Oil 57 is stored in the storage section 58. A portion of the gear unit 50 is immersed in the oil 57 stored in the storage section 58.

[0043] The second housing 12 has a box shape with one open side. The second housing 12 is fastened to the opposing surface 13s such that the open side is blocked by the opposing surface 13s. The fastening method will be described later. Thus, a second space SP2 is defined between the motor housing 13 and the second housing 12. The power conversion unit 21 is housed in the second space SP2. In other words, the second housing 12 houses the power conversion unit 21. The power conversion unit 21 is a component used to control the power supplied to the motor 40 and the power generated. Examples of components included in the power conversion unit 21 include converters and transducers. The power conversion unit 21 is electrically connected to the motor 40 via a busbar 22.

[0044] (Structure of outer shell 10)

[0045] Figure 2 A perspective view showing drive unit 1. Figure 2 The image shows the state after the second housing 12 has been removed. Additionally, the position of the motor shaft 43 is indicated by a dashed line. Figure 3 This is an exploded plan view of drive unit 1.

[0046] The first housing 11 has a first flange 11f extending along the outer periphery of the first housing 11. The second housing 12 has a second flange 12f extending along the outer periphery of the second housing 12. The motor housing 13 has a motor housing flange 13f extending along the outer periphery of the motor housing 13. A plurality of fastening holes 11h are provided on the first flange 11f. A plurality of fastening holes 12h are provided on the second flange 12f. A plurality of fastening holes 13h are provided on the motor housing flange 13f and the opposing surface 13s. In this embodiment, the first flange 11f extends annularly along the outer periphery of the first housing 11, and the second flange 12f extends annularly along the outer periphery of the second housing 12, but is not limited to this arrangement. The first flange 11f and the second flange 12f may extend at least along the motor housing flange 13f. That is, in the opposing region OR (refer to) where the first housing 11 and the second housing 12 are radially opposed. Figure 3 In this configuration, the first flange 11f and the second flange 12f may not be configured.

[0047] The first housing 11 and the second housing 12 are fastened to the motor housing 13 by a plurality of bolts 60. The longitudinal direction of the plurality of bolts 60 is approximately parallel to the central axis CA of the motor shaft 43. Both the first housing 11 and the second housing 12 are fixed to the opposing surface 13s of the motor housing 13. The opposing surface 13s is one side (direction RH side) of the motor housing 13. In this embodiment, the first housing 11 and the motor housing 13 are fixed by the plurality of bolts 60 in a manner in which they are respectively connected, but this method is not limited to. For example, an adhesive material such as a liquid gasket (FIPG) may be sandwiched between the first housing 11 and the motor housing 13 for fixation. Similarly, an adhesive or the like may be sandwiched between the second housing 12 and the motor housing 13 for fixation.

[0048] The opposing surface 13s has a first fixing surface MS1 for fixing the first housing 11 and a second fixing surface MS2 for fixing the second housing 12. The first fixing surface MS1 and the second fixing surface MS2 are located in the same plane. This allows the mounting surfaces of the first housing 11 and the second housing 12 to be shared, simplifying the assembly process. Furthermore, the end face 11u of the first housing 11 in the central axis direction D2 and the end face 12u of the second housing 12 in the central axis direction D2 are also located in the same plane PL (see reference). Figure 1 ).

[0049] When viewed from the direction of the central axis CA of the motor shaft 43, the first housing 11 and the second housing 12 are respectively fixed to the motor housing 13. That is, the first flange 11f and the second flange 12f do not have overlapping areas. Thus, the first housing 11 is configured to be detachable from the opposing surface 13s of the motor housing 13 while the second housing 12 is fixed to it. Similarly, the second housing 12 is configured to be detachable from the opposing surface 13s of the motor housing 13 while the first housing 11 is fixed to it.

[0050] (Positional relationship between the first shell 11 and the second shell 12)

[0051] like Figure 1 As shown, a space is formed in the region opposite to the gear unit 50 relative to the motor shaft 43 due to the size difference between the motor 40 and the gear unit 50. A second housing 12 is disposed in this space. That is, at least a portion of the second housing 12 overlaps with the first housing 11 in the direction D1 perpendicular to the central axis CA of the motor shaft 43. In other words, the second housing 12 is disposed above the central axis CA of the motor shaft 43 in the vertical direction. This allows for efficient utilization of the space around the motor shaft 43. Consequently, the protrusion of the second housing 12 in the central axis direction D2 of the motor shaft 43 can be reduced. This enables miniaturization of the drive unit 1.

[0052] Furthermore, at least a portion of the second housing 12 overlaps with the motor 40 in the central axis direction D2. This allows for efficient use of the space around the motor shaft 43. Consequently, the amount of protrusion of the second housing 12 in the direction D1 perpendicular to the central axis CA can be reduced.

[0053] like Figure 2 As shown, when viewed from the central axis direction D2 of the motor shaft 43, the second housing 12 is arranged along a portion of the circumference centered on the motor shaft 43. Furthermore, the arrangement range of the second housing 12 in the direction of motor rotation is more than 180° around the motor shaft 43. Therefore, the capacity of the second housing 12 can be sufficiently ensured.

[0054] (Assembly process of power conversion unit 21)

[0055] use Figure 4The flowchart below describes the assembly process of the power conversion unit 21. In step S10, a motor housing 13 housing the motor 40 is prepared. In step S20, a first housing 11 is installed on the opposing surface 13s of the motor housing 13. The gear unit 50 is housed inside the first housing 11 after the first housing 11 is installed. Alternatively, the gear unit 50 can be installed on the motor housing 13 before step S20, or the gear unit 50 and the first housing 11 can be integrally installed on the motor housing 13 in step S20.

[0056] In step S30, the power conversion unit 21 is fixed to the opposing surface 13s of the motor housing 13. The power conversion unit 21 is fixed while the first housing 11 is mounted on the opposing surface 13s of the motor housing 13. The method of fixing the power conversion unit 21 to the motor housing 13 can be varied. For example, it can be fastened using bolts (not shown). Additionally, in step S30, the power conversion unit 21 is electrically connected to the motor 40 via the busbar 22. For example, the busbar 22 can be fastened to a terminal block (not shown) of the power conversion unit 21 using bolts (not shown).

[0057] In step S40, the second housing 12 is installed on the opposing surface 13s of the motor housing 13. This step is performed with the first housing 11 and the power conversion unit 21 installed on the opposing surface 13s. As a result, the power conversion unit 21 is housed inside the second housing 12.

[0058] The effects of the assembly process will be explained. Since the power conversion unit 21 is a precision component, it is necessary to prevent the intrusion of oil, foreign matter, etc. In this assembly process, the power conversion unit 21 can be assembled while the first housing is already assembled. Oil and other contaminants that splash during the assembly of the first housing will not intrude into the power conversion unit 21. Furthermore, immediately after assembling the power conversion unit 21, the second housing 12 can be used to cover it. Since this shortens the time the power conversion unit 21 is exposed to the atmosphere, it prevents foreign matter from intruding into the power conversion unit 21.

[0059] (Effect)

[0060] First, use Figure 5 The topic will be explained using a comparative example drive device 1001. The comparative example drive device 1001 ( Figure 5 ) and the driving device 1 of this embodiment ( Figure 2Compared to the first housing 11, the second housing 12 is absent. Furthermore, a second space SP2 for housing the power conversion unit 21 is formed in the first housing 11. Additionally, a cover 15 is provided to block the opening AP2 of the second space SP2. In the comparative example drive device 1001, the case where the power conversion unit 21 is mounted on the opposing surface 13s of the motor housing 13 is described. The opposing surface 13s is located at the bottom of the second space SP2. Therefore, the approach direction of the assembly tool towards the opposing surface 13s is limited to the central axis direction D2 via the opening AP2 (refer to arrow A0). Consequently, it is difficult for the tool to approach the contact portion between the power conversion unit 21 and the opposing surface 13s, thus resulting in poor assembly.

[0061] Therefore, in this embodiment, the first housing 11 housing the gear unit 50 and the second housing 12 housing the power conversion unit 21 are separately constructed and configured to not overlap each other in the central axis direction D2. Thus, as... Figure 2 As shown, the power conversion unit 21 can be installed with only the second housing 12 removed from the motor housing 13, thus avoiding interference from the second housing 12 during installation. That is, the power conversion unit 21 can be installed with the opposing surface 13s exposed (step S30). Therefore, the tool can be extended in the approach direction of the contact portion between the power conversion unit 21 and the opposing surface 13s to the vertical direction of the vehicle and the rear (refer to arrow A1). This improves the assemblability of the power conversion unit 21.

[0062] (A variation of Example 1)

[0063] The power conversion unit 21 can be fixed in various ways. For example, in step S30 described above, the power conversion unit 21 can be fixed to the inner surface of the second housing 12. This allows the second housing 12 to be mounted and detached from the opposing surface 13s of the motor housing 13 while the power conversion unit 21 is fixed to the inner surface of the second housing 12. Then, in step S40 described above, the second housing 12 with the power conversion unit 21 fixed to its inner surface is mounted to the opposing surface 13s. At this time, for example, the busbar 22 can be inserted into the insertion port (not shown) of the power conversion unit 21. This allows the power conversion unit 21 to be electrically connected to the motor 40 via the busbar 22. This method also increases the assembly flexibility of the power conversion unit 21.

[0064] Example 2

[0065] The difference between Embodiment 2 and Embodiment 1 is that the power conversion unit 21 is divided into a first component 21_1 and a second component 21_2. Common parts in Embodiments 1 and 2 are labeled with the same reference numerals, thus omitting further description.

[0066] Figure 6 This is a perspective view showing the drive device 201 of Embodiment 2. Figure 6 The diagram shows the state after the second housing 12, the first component 21_1, and the second component 21_2 have been removed. The first component 21_1 is the component that includes the converter. In other words, the first component 21_1 is the component connected to the busbar 22. The second component 21_2 is an electronic component electrically connected to the converter of the first component 21_1. The second component 21_2 may also include at least one of various sensors, DC-DC converters, coils, and capacitors. As examples of various sensors, a sensor that detects at least one of voltage, current, and temperature within the power conversion unit 21 can be given. The first component 21_1 and the second component 21_2 are electrically connected by a wiring 23. The wiring 23 may also be a busbar. Furthermore, as a variation, other components may be placed between the first component 21_1 and the second component 21_2.

[0067] The first component 21_1 and the second component 21_2 can be fixed to the opposing surface 13s of the motor housing 13 or the inner surface of the second housing 12, respectively. Specifically, the following four fixing methods can be adopted: (1) Both the first component 21_1 and the second component 21_2 are fixed to the opposing surface 13s. (2) Both the first component 21_1 and the second component 21_2 are fixed to the inner surface of the second housing 12. (3) The first component 21_1 is fixed to the opposing surface 13s, and the second component 21_2 is fixed to the inner surface of the second housing 12. (4) The first component 21_1 is fixed to the inner surface of the second housing 12, and the second component 21_2 is fixed to the opposing surface 13s.

[0068] Therefore, it is possible to configure the first component 21_1 to be attached to or detached from the opposing surface 13s or the inner surface of the second housing 12 while the second component 21_2 is fixed to the opposing surface 13s or the inner surface of the second housing 12. Furthermore, it is possible to configure the second component 21_2 to be attached to or detached from the opposing surface 13s or the inner surface of the second housing 12 while the first component 21_1 is fixed to the opposing surface 13s or the inner surface of the second housing 12.

[0069] (Effect)

[0070] Compared to the case where the power conversion unit 21 is an integral unit, the case where it is divided into a first component 21_1 and a second component 21_2 allows the power conversion unit 21 to be configured according to the shape of the installation space. This makes efficient use of the installation space.

[0071] When both the first component 21_1 and the second component 21_2 are fixed to the opposing surface 13s or to the inner surface of the second housing 12, they sometimes interfere with each other, making installation difficult. Therefore, by fixing one of the first component 21_1 and the second component 21_2 to the opposing surface 13s and the other to the inner surface of the second housing 12, the mutual interference during installation of the first component 21_1 and the second component 21_2 can be eliminated. This simplifies the installation of the power conversion unit 21.

[0072] Example 3

[0073] Embodiment 3 differs from Embodiment 2 in that the second housing 12 includes a housing body portion 12b and a cover portion 12c. The same reference numerals are used to denote common parts in Embodiments 2 and 3, thus omitting further description.

[0074] Figure 7 This is a perspective view showing the drive device 301 of Embodiment 3. Figure 7 The image shows the state after the second housing 12, the first component 21_1, and the second component 21_2 have been removed. The second housing 12 includes a housing body portion 12b having an opening AP and a cover portion 12c covering the opening AP.

[0075] The first component 21_1 and the second component 21_2 can be fixed to the opposing surface 13s of the motor housing 13 or the back surface of the cover 12c, respectively. Specifically, the following four fixing methods can be adopted: (1) Both the first component 21_1 and the second component 21_2 are fixed to the opposing surface 13s. (2) Both the first component 21_1 and the second component 21_2 are fixed to the back surface of the cover 12c. (3) The first component 21_1 is fixed to the opposing surface 13s, and the second component 21_2 is fixed to the back surface of the cover 12c. (4) The first component 21_1 is fixed to the back surface of the cover 12c, and the second component 21_2 is fixed to the opposing surface 13s.

[0076] According to the method of Example 3, the same effect as that of Example 2 described above can also be obtained.

[0077] The embodiments have been described in detail above, but these are merely illustrative and do not limit the scope of the claims. The technology described in the claims includes technologies obtained by various modifications and alterations to the specific examples described above. The technical elements illustrated in this specification or drawings exert their technical usefulness individually or in various combinations, and are not limited to the combinations described in the claims at the time of application. Furthermore, the technology illustrated in this specification or drawings achieves multiple objectives simultaneously, and achieving one of these objectives is itself technically useful.

[0078] (Variation example)

[0079] exist Figure 3 In this case, the first fixed surface MS1 and the second fixed surface MS2 are not limited to being located on the same plane. For example, the first fixed surface MS1 and the second fixed surface MS2 may be located in different planes, and a step may be formed at their boundary.

[0080] The power conversion unit 21 can be divided in various ways; for example, the power conversion unit 21 can be composed of three or more components.

[0081] Vehicles equipped with the drive unit described in this specification are not limited to electric vehicles. The drive unit described in this specification can be used in, for example, hybrid vehicles and plug-in hybrid vehicles. In this case, the drive unit can house multiple motors within a housing, or it can house a planetary gear mechanism. Furthermore, the drive unit described in this specification can also be applied to vehicles such as fuel cell vehicles that use an electric motor for at least a portion of their driving operation.

Claims

1. A drive unit, a drive unit for a vehicle, wherein, have: An electric motor, equipped with a motor shaft; Motor housing, which houses the motor; A first housing, which houses a gear unit mechanically connected to the motor; and The second housing houses the power conversion unit that is electrically connected to the motor. The first housing and the second housing are respectively fixed to one side of the motor housing in the axial direction of the motor shaft.

2. The driving device according to claim 1, wherein, The first housing is configured to be assembled onto one side of the motor housing while the second housing is fixed to that side. The second housing is configured to be assembled onto one side of the motor housing while the first housing is fixed to one side of the motor housing.

3. The driving device according to claim 1 or 2, wherein, At least a portion of the second housing overlaps with the first housing in a direction perpendicular to the axial direction of the motor shaft.

4. The driving device according to any one of claims 1-3, wherein, The motor housing has a first fixing surface for fixing the first housing and a second fixing surface for fixing the second housing on one side. The first fixing surface and the second fixing surface are located on the same plane.

5. The driving device according to any one of claims 1-4, wherein, The power conversion unit is fixed to one side of the motor housing. The second housing is configured to be assembled on one side of the motor housing while the power conversion unit is fixed to one side of the motor housing.

6. The drive device according to any one of claims 1-4, wherein, The power conversion unit is fixed to the second housing. The second housing is configured to be able to be assembled onto one side of the motor housing while the power conversion unit is fixed to the second housing.

7. The drive device according to any one of claims 1-6, wherein, The power conversion unit includes a first component comprising a converter and a second component, namely an electronic component electrically connected to the converter. The first component is configured to be assembled onto one side of the motor housing or the second housing while the second component is fixed to one side of the motor housing or the second housing. The second component is configured to be assembled onto one side of the motor housing or the second housing while the first component is fixed to one side of the motor housing or the second housing.

8. The driving device according to claim 7, wherein, One of the first component and the second component is fixed to one side of the motor housing. The first component and the other of the second component are fixed to the second housing.

9. The driving device according to claim 7 or 8, wherein, The second housing includes a housing body portion having an opening and a cover portion covering the opening. The other of the first component and the second component is fixed to the cover.

10. The drive device according to any one of claims 7-9, wherein, The second component includes a sensor for detecting at least one of voltage, current, and temperature within the power conversion unit.

11. A method for manufacturing a drive unit, which is a method for manufacturing a drive unit for a vehicle, the drive unit for a vehicle comprising: Motor housing, which houses the motor; A first housing, which houses a gear unit mechanically connected to the motor; and The second housing houses the power conversion unit electrically connected to the motor, wherein... The method for manufacturing the drive device includes: The process of installing the first housing on one side of the motor housing along the axial direction of the motor; The process of installing the power conversion unit on one side of the motor housing while the first housing is installed on the same side of the motor housing; as well as The process of installing the second housing on one side of the motor housing while the first housing and the power conversion unit are installed on the same side of the motor housing.

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