JP7298257B2 - drive - Google Patents

drive Download PDF

Info

Publication number
JP7298257B2
JP7298257B2 JP2019075820A JP2019075820A JP7298257B2 JP 7298257 B2 JP7298257 B2 JP 7298257B2 JP 2019075820 A JP2019075820 A JP 2019075820A JP 2019075820 A JP2019075820 A JP 2019075820A JP 7298257 B2 JP7298257 B2 JP 7298257B2
Authority
JP
Japan
Prior art keywords
axle
connecting portion
motor housing
motor
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2019075820A
Other languages
Japanese (ja)
Other versions
JP2020174481A (en
Inventor
勇樹 石川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec America Corp
Original Assignee
Nidec America Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidec America Corp filed Critical Nidec America Corp
Priority to JP2019075820A priority Critical patent/JP7298257B2/en
Priority to CN202010207188.2A priority patent/CN111817498B/en
Publication of JP2020174481A publication Critical patent/JP2020174481A/en
Application granted granted Critical
Publication of JP7298257B2 publication Critical patent/JP7298257B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)

Description

本発明は、駆動装置に関する。 The present invention relates to a driving device.

従来から、特許文献１記載のように、モータと、モータの駆動トルクをデフギアに伝達する減速機構とを有する駆動装置が知られる。 2. Description of the Related Art Conventionally, as disclosed in Japanese Unexamined Patent Application Publication No. 2002-100000, there is known a drive device having a motor and a speed reduction mechanism that transmits drive torque of the motor to a differential gear.

特開２０１９－０２７５１２号公報JP 2019-027512 A

減速機構を収容するハウジングにおいて、デフギヤを収容するデフ収容部は、ハウジングの側面から車軸方向に筒状に突出する。デフ収容部は、外周面に補強用のリブを有する。高出力の駆動装置では、デフ収容部においてより高い強度が求められる。しかし、単にリブを大きくするとハウジングが大型化し、複雑な形状のリブは製造が困難になる課題があった。 In the housing that accommodates the speed reduction mechanism, the differential accommodating portion that accommodates the differential gear projects cylindrically from the side surface of the housing in the axle direction. The differential accommodating portion has reinforcing ribs on its outer peripheral surface. A high-power drive device requires a higher strength in the differential accommodating portion. However, simply increasing the size of the ribs would increase the size of the housing, making it difficult to manufacture complex shaped ribs.

本発明の１つの態様によれば、モータ軸を中心として回転するロータを有するモータと、前記モータの動力を車軸に伝達する伝達機構と、前記モータおよび前記伝達機構を収容するハウジングと、を備え、前記ハウジングは、前記モータ軸に沿って一方側から他方側へ延びる筒状のモータハウジングと、前記モータハウジングの軸方向他方側の端部から径方向に広がる連結部と、前記連結部との間に前記伝達機構を収容し、前記連結部と軸方向に接合されるギヤカバーと、車両の車軸が挿入される車軸挿入孔を有し前記連結部から軸方向一方側に突出する車軸接続部と、を有し、前記モータハウジングと前記連結部と前記車軸接続部とは単一部材の一部であり、前記車軸接続部は、前記車軸挿入孔と、前記連結部よりも軸方向一方側に位置するとともに、前記モータハウジング側へ延びて該モータハウジングの外周面に接続する、軸方向一方側を向く面を有する第１壁部と、前記第１壁部の外周端から軸方向他方側に延びて前記連結部と接続するとともに、前記モータハウジングの外周面に接続する筒状の第２壁部と、を有し、前記第２壁部は、前記モータハウジングとは反対側を向く領域に、第１のリブと、前記第１のリブと交差して格子状のリブを形成するとともに、前記モータハウジングとは反対側を向く領域のみに形成される第２のリブと、を有する。 According to one aspect of the present invention, a motor includes a motor having a rotor that rotates about a motor shaft, a transmission mechanism that transmits power of the motor to an axle, and a housing that accommodates the motor and the transmission mechanism. , the housing includes a cylindrical motor housing extending from one side to the other side along the motor shaft, a connecting portion extending radially from the end portion of the motor housing on the other side in the axial direction, and the connecting portion. a gear cover that accommodates the transmission mechanism therebetween and is axially joined to the connecting portion; and an axle connecting portion that has an axle insertion hole into which an axle of the vehicle is inserted and protrudes from the connecting portion to one side in the axial direction. , wherein the motor housing, the connecting portion, and the axle connecting portion are part of a single member, and the axle connecting portion is located on one side of the axle insertion hole and the connecting portion in the axial direction. a first wall portion extending toward the motor housing side and connected to the outer peripheral surface of the motor housing and having a surface facing one side in the axial direction; a cylindrical second wall portion extending to connect with the connecting portion and connected to the outer peripheral surface of the motor housing, the second wall portion being formed in a region facing away from the motor housing; , first ribs, and second ribs that intersect the first ribs to form grid-like ribs and are formed only in regions facing away from the motor housing.

本発明の１つの態様によれば、ハウジングの大型化を抑制しつつ強度を高めた駆動装置が提供される。 According to one aspect of the present invention, there is provided a driving device that has increased strength while suppressing an increase in housing size.

図１は、実施形態の駆動装置を上側から見た斜視図である。FIG. 1 is a perspective view of the drive device of the embodiment viewed from above. 図２は、実施形態の駆動装置を上側から見た斜視図である。FIG. 2 is a perspective view of the driving device of the embodiment as seen from above. 図３は、実施形態の駆動装置を軸方向から見た部分側面図である。FIG. 3 is a partial side view of the driving device of the embodiment as seen from the axial direction. 図４は、実施形態の駆動装置を径方向から見た部分側面図である。FIG. 4 is a partial side view of the driving device of the embodiment as seen from the radial direction. 図５は、実施形態の駆動装置を上側から見た斜視図である。FIG. 5 is a perspective view of the driving device of the embodiment viewed from above.

以下の説明では、図１に示す本実施形態の駆動装置１が水平な路面上に位置する車両に搭載された場合の位置関係を基に、鉛直方向を規定して説明する。また、図面においては、適宜３次元直交座標系としてＸＹＺ座標系を示す。ＸＹＺ座標系において、Ｚ軸方向は、＋Ｚ側を上側とし、－Ｚ側を下側とする鉛直方向である。Ｘ軸方向は、Ｚ軸方向と直交する方向であって駆動装置１が搭載される車両の前後方向である。本実施形態において、＋Ｘ側は、車両の前側であり、－Ｘ側は、車両の後側である。Ｙ軸方向は、Ｘ軸方向とＺ軸方向との両方と直交する方向であって、車両の左右方向である。本実施形態において、＋Ｙ側は、車両の左側であり、－Ｙ側は、車両の右側である。本実施形態において、右側は、軸方向一方側に相当し、左側は、軸方向他方側に相当する。また、本実施形態において、前後方向は、所定方向に相当する。 In the following description, the vertical direction is defined based on the positional relationship when the drive system 1 of the present embodiment shown in FIG. 1 is mounted on a vehicle positioned on a horizontal road surface. Also, in the drawings, an XYZ coordinate system is appropriately shown as a three-dimensional orthogonal coordinate system. In the XYZ coordinate system, the Z-axis direction is a vertical direction with the +Z side as the upper side and the -Z side as the lower side. The X-axis direction is a direction orthogonal to the Z-axis direction and is the front-rear direction of the vehicle on which the driving device 1 is mounted. In this embodiment, the +X side is the front side of the vehicle, and the -X side is the rear side of the vehicle. The Y-axis direction is a direction orthogonal to both the X-axis direction and the Z-axis direction, and is the lateral direction of the vehicle. In this embodiment, the +Y side is the left side of the vehicle and the -Y side is the right side of the vehicle. In this embodiment, the right side corresponds to one side in the axial direction, and the left side corresponds to the other side in the axial direction. Further, in the present embodiment, the front-rear direction corresponds to a predetermined direction.

なお、前後方向の位置関係は、本実施形態の位置関係に限られず、＋Ｘ側が車両の後側であり、－Ｘ側が車両の前側であってもよい。この場合には、＋Ｙ側は、車両の右側であり、－Ｙ側は、車両の左側である。 The positional relationship in the longitudinal direction is not limited to the positional relationship of this embodiment, and the +X side may be the rear side of the vehicle and the −X side may be the front side of the vehicle. In this case, the +Y side is the right side of the vehicle and the -Y side is the left side of the vehicle.

各図に適宜示すモータ軸Ｊ１は、Ｙ軸方向、すなわち車両の左右方向に延びる。以下の説明においては、特に断りのない限り、モータ軸Ｊ１に平行な方向を単に「軸方向」と呼び、モータ軸Ｊ１を中心とする径方向を単に「径方向」と呼び、モータ軸Ｊ１を中心とする周方向、すなわち、モータ軸Ｊ１の軸回りを単に「周方向」と呼ぶ。なお、本明細書において、「平行な方向」は略平行な方向も含み、「直交する方向」は略直交する方向も含む。 A motor shaft J1 appropriately shown in each figure extends in the Y-axis direction, that is, in the lateral direction of the vehicle. In the following description, unless otherwise specified, the direction parallel to the motor axis J1 is simply referred to as the "axial direction", the radial direction about the motor axis J1 is simply referred to as the "radial direction", and the motor axis J1 is referred to as the "radial direction". The circumferential direction around the center, that is, the circumference of the motor shaft J1 is simply referred to as the "circumferential direction". In this specification, "parallel directions" include substantially parallel directions, and "perpendicular directions" include substantially perpendicular directions.

駆動装置１は、ハイブリッド自動車（ＨＥＶ）、プラグインハイブリッド自動車（ＰＨＶ）、電気自動車（ＥＶ）等、モータを動力源とする車両に搭載され、その動力源として使用される。図１および図２に示すように、駆動装置１は、ハウジング１０と、モータ２０と、インバータユニット４０と、を備える。また、図示は省略するが、駆動装置１は、減速装置と、差動装置と、を備える。 The drive device 1 is mounted on a vehicle using a motor as a power source, such as a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHV), an electric vehicle (EV), and is used as the power source. As shown in FIGS. 1 and 2, the driving device 1 includes a housing 10, a motor 20, and an inverter unit 40. As shown in FIG. Although illustration is omitted, the driving device 1 includes a reduction gear and a differential gear.

ハウジング１０は、モータ２０、図示しない減速装置、および図示しない差動装置を収容する。図示は省略するが、ハウジング１０の内部には、オイルが収容される。図１および図２に示すように、ハウジング１０は、ハウジング本体１１と、ギヤカバー１２と、モータカバー１３と、を有する。 The housing 10 accommodates a motor 20, a reduction gear (not shown), and a differential gear (not shown). Although not shown, the housing 10 contains oil. As shown in FIGS. 1 and 2, the housing 10 has a housing body 11, a gear cover 12, and a motor cover 13. As shown in FIGS.

ハウジング本体１１は、モータハウジング１１ａと、連結部１１ｂと、を有する。モータハウジング１１ａは、モータ軸Ｊ１を囲んで軸方向に延びる筒状である。モータハウジング１１ａは、図示の－Ｙ側である右側に開口する。モータハウジング１１ａは、モータ２０を収容する。連結部１１ｂは、モータハウジング１１ａの左側（軸方向他方側）の端部から径方向に広がる。連結部１１ｂは、モータハウジング１１ａよりも後側に突出する。 The housing body 11 has a motor housing 11a and a connecting portion 11b. The motor housing 11a has a cylindrical shape surrounding the motor shaft J1 and extending in the axial direction. The motor housing 11a opens on the right side, which is the -Y side in the drawing. Motor housing 11 a accommodates motor 20 . The connecting portion 11b extends radially from the left end (the other side in the axial direction) of the motor housing 11a. The connecting portion 11b protrudes rearward from the motor housing 11a.

ギヤカバー１２は、ハウジング本体１１の左側に固定される。より詳細には、ギヤカバー１２の右側の端部は、連結部１１ｂにボルト締結される。図示は省略するが、ギヤカバー１２は、右側に開口する。ギヤカバー１２のうち、モータハウジング１１ａの左側に位置する部分は、図示しない減速装置を収容する。ギヤカバー１２のうち、連結部１１ｂの左側に位置する部分は、図示しない差動装置を収容する。すなわち、駆動装置１は、モータ２０の動力を車軸に伝達する伝達機構としての減速装置および差動装置を備える。ギヤカバー１２は、ハウジング本体１１の連結部１１ｂとともに、伝達機構である減速装置および差動装置を収容するギヤハウジング１５を構成する。 The gear cover 12 is fixed on the left side of the housing body 11 . More specifically, the right end of the gear cover 12 is bolted to the connecting portion 11b. Although not shown, the gear cover 12 opens on the right side. A portion of the gear cover 12 located on the left side of the motor housing 11a accommodates a reduction gear (not shown). A portion of the gear cover 12 located on the left side of the connecting portion 11b accommodates a differential gear (not shown). That is, the driving device 1 includes a reduction gear and a differential gear as a transmission mechanism for transmitting the power of the motor 20 to the axle. The gear cover 12, together with the connecting portion 11b of the housing body 11, constitutes a gear housing 15 that accommodates a reduction gear and a differential, which are transmission mechanisms.

モータカバー１３は、ハウジング本体１１の右側に固定される。より詳細には、モータカバー１３は、モータハウジング１１ａの右側の端部にボルト締結される。図１に示すように、モータカバー１３は、モータハウジング１１ａの右側の開口を塞ぐ。 The motor cover 13 is fixed to the right side of the housing body 11 . More specifically, the motor cover 13 is bolted to the right end of the motor housing 11a. As shown in FIG. 1, the motor cover 13 closes the right opening of the motor housing 11a.

モータ２０は、図示しないロータおよびステータを有する。モータ２０のロータは、モータ軸Ｊ１を中心として回転する。モータ２０のロータは、ギヤカバー１２に収容される図示しない減速装置と接続される。モータ２０の回転は、図示しない減速装置によって減速されて、図示しない差動装置に伝達される。差動装置は、モータ２０から出力されるトルクを車両の車軸に伝達する。差動装置は、モータ軸Ｊ１と平行な差動軸Ｊ２を中心として回転するリングギヤを有する。リングギヤには、モータ２０から出力されるトルクが減速装置を介して伝えられる。 The motor 20 has a rotor and a stator (not shown). The rotor of the motor 20 rotates about the motor shaft J1. A rotor of the motor 20 is connected to a reduction gear (not shown) housed in the gear cover 12 . The rotation of the motor 20 is decelerated by a deceleration device (not shown) and transmitted to a differential device (not shown). The differential transmits the torque output from motor 20 to the axle of the vehicle. The differential has a ring gear that rotates about a differential axis J2 parallel to the motor axis J1. Torque output from the motor 20 is transmitted to the ring gear via a reduction gear.

ハウジング１０は、図３から図５に示すように、連結部１１ｂから右側（軸方向一方側）へ突出する車軸接続部１１ｃを有する。車軸接続部１１ｃは、モータハウジング１１ａの後側を向く面と、連結部１１ｂの右側を向く面との角部に位置する。車軸接続部１１ｃは、モータハウジング１１ａと、連結部１１ｂの両方に接続される。モータハウジング１１ａと連結部１１ｂと車軸接続部１１ｃは、単一部材であるハウジング本体１１の一部である。ハウジング本体１１は、例えばダイカスト法により製造される。 As shown in FIGS. 3 to 5, the housing 10 has an axle connecting portion 11c that protrudes rightward (one side in the axial direction) from the connecting portion 11b. The axle connecting portion 11c is located at the corner between the rearward facing surface of the motor housing 11a and the rightward facing surface of the connecting portion 11b. The axle connecting portion 11c is connected to both the motor housing 11a and the connecting portion 11b. The motor housing 11a, the coupling portion 11b, and the axle connection portion 11c are part of the housing body 11, which is a single member. The housing main body 11 is manufactured by, for example, a die casting method.

車軸接続部１１ｃは、車両の車軸が挿入される車軸挿入孔１１５を有する。車軸挿入孔１１５は、差動軸Ｊ２を中心とする円形状の開口部である。車両の車軸は、車軸挿入孔１１５からギヤハウジング１５の内部に挿入される。車両の車軸は、車軸挿入孔１１５の内側において差動装置のリングギヤと接続される。車両の車軸は、差動軸Ｊ２を中心として軸回りに回転される。 The axle connection portion 11c has an axle insertion hole 115 into which an axle of the vehicle is inserted. The axle insertion hole 115 is a circular opening centered on the differential shaft J2. The axle of the vehicle is inserted into the gear housing 15 through the axle insertion hole 115 . The axle of the vehicle is connected to the ring gear of the differential gear inside the axle insertion hole 115 . The axles of the vehicle are rotated about the differential axis J2.

車軸接続部１１ｃは、右側（－Ｙ側）を向く面を有する第１壁部１０１と、第１壁部１０１の外周端から左側（＋Ｙ側）に延びる筒状の第２壁部１０２と、を有する。第１壁部１０１は、連結部１１ｂの右側を向く面よりも右側に位置する。第１壁部１０１の連結部１１ｂからの突出高さは、第２壁部１０２の軸方向長さに相当する。 The axle connection portion 11c includes a first wall portion 101 having a surface facing the right side (−Y side), a cylindrical second wall portion 102 extending from the outer peripheral end of the first wall portion 101 to the left side (+Y side), have The first wall portion 101 is located on the right side of the right-facing surface of the connecting portion 11b. The protrusion height of the first wall portion 101 from the connecting portion 11b corresponds to the length of the second wall portion 102 in the axial direction.

第１壁部１０１は、図３および図５に示すように、前後方向（Ｘ軸方向）に沿って延びる。第１壁部１０１の前側（＋Ｘ側）の端部は、モータハウジング１１ａの外周面に接続する。第１壁部１０１の後側（－Ｘ側）の端部は、軸方向に見て、連結部１１ｂの中央部に位置する。車軸挿入孔１１５は、第１壁部１０１の後側の端部に位置する。第１壁部１０１は、車軸挿入孔１１５の周囲を囲む円環状領域１０１ａと、円環状領域１０１ａから一定の幅で前側へ延びる帯状領域１０１ｂとを有する。 The first wall portion 101 extends in the front-rear direction (X-axis direction), as shown in FIGS. 3 and 5 . The front (+X side) end of the first wall portion 101 is connected to the outer peripheral surface of the motor housing 11a. The rear (−X side) end of the first wall portion 101 is located in the central portion of the connecting portion 11b when viewed in the axial direction. The axle insertion hole 115 is located at the rear end of the first wall portion 101 . The first wall portion 101 has an annular region 101a surrounding the axle insertion hole 115 and a band-shaped region 101b extending forward from the annular region 101a with a constant width.

図４に示す車軸接続部１１ｃの連結部１１ｂからの突出高さＨは、連結部１１ｂの表面から、帯状領域１０１ｂの表面までの高さである。図４および図５に示すように、本実施形態において、第１壁部１０１のうち、車軸挿入孔１１５を囲む円環状領域１０１ａの連結部１１ｂからの突出高さは、帯状領域１０１ｂの突出高さＨよりも低い。また、帯状領域１０１ｂは、前側に向かうに従って右側に傾斜する斜面である。すなわち、本実施形態において、車軸接続部１１ｃの連結部１１ｂからの突出高さは、車軸接続部１１ｃがモータハウジング１１ａから突出する方向（Ｘ軸方向）に沿って、モータハウジング１１ａ側に向かうに従って大きくなる。なお、車軸接続部１１ｃの連結部１１ｂからの突出高さは、前後方向に沿って一定の高さであってもよい。 A protruding height H of the axle connecting portion 11c shown in FIG. As shown in FIGS. 4 and 5, in the present embodiment, the protrusion height of the ring-shaped region 101a surrounding the axle insertion hole 115 in the first wall portion 101 from the connecting portion 11b is equal to the protrusion height of the band-shaped region 101b. lower than H. Moreover, the band-shaped region 101b is a slope that slopes rightward toward the front side. That is, in the present embodiment, the protruding height of the axle connecting portion 11c from the connecting portion 11b is as follows along the direction (X-axis direction) in which the axle connecting portion 11c protrudes from the motor housing 11a toward the motor housing 11a. growing. The height of the axle connection portion 11c protruding from the connecting portion 11b may be a constant height along the front-rear direction.

本実施形態の駆動装置１では、車両の車軸が接続される車軸接続部１１ｃが、モータハウジング１１ａおよび連結部１１ｂとともに単一部材で構成され、車軸挿入孔１１５から前側へ延びる第１壁部１０１が、モータハウジング１１ａの外周面に接続される。この構成によれば、第１壁部１０１の車軸挿入孔１１５に挿入される車軸から車軸接続部１１ｃに力が掛かったとしても、モータハウジング１１ａと一体の第１壁部１０１によって車軸接続部１１ｃの変形を抑制できる。これにより、車両駆動時の車軸の傾きが抑制され、減速機構のギヤの摩耗等を低減できる。 In the drive device 1 of the present embodiment, the axle connecting portion 11c to which the axle of the vehicle is connected is formed of a single member together with the motor housing 11a and the connecting portion 11b. is connected to the outer peripheral surface of the motor housing 11a. According to this configuration, even if a force is applied to the axle connection portion 11c from the axle inserted into the axle insertion hole 115 of the first wall portion 101, the first wall portion 101 integrated with the motor housing 11a allows the axle connection portion 11c to move. deformation can be suppressed. As a result, tilting of the axle when the vehicle is driven is suppressed, and wear of the gears of the speed reduction mechanism can be reduced.

第１壁部１０１は、車軸挿入孔１１５からモータハウジング１１ａ側へ延びているため、第１壁部１０１の大部分は、車軸とモータハウジング１１ａとの間に配置される。したがって、駆動装置１の外形が大型化することはない。また第１壁部１０１は、平板状であるため、製造も容易である。 Since the first wall portion 101 extends from the axle insertion hole 115 toward the motor housing 11a, most of the first wall portion 101 is arranged between the axle and the motor housing 11a. Therefore, the outer shape of the driving device 1 does not increase in size. Moreover, since the first wall portion 101 is flat, it is easy to manufacture.

本実施形態の駆動装置１では、第１壁部１０１を有する車軸接続部１１ｃを、前後方向（Ｘ軸方向）に移動可能な可動型を用いるダイカスト成型によって成形できる。すなわち、ダイカスト成型された車軸接続部１１ｃを、車軸接続部１１ｃが延びる方向に金型を移動させて離型できる。
また本実施形態のモータハウジング１１ａは、図４および図５に示すように、モータハウジング１１ａの外周面から後側に突出する格子状のリブ１１ｄを有する。リブ１１ｄは、図４に示すように、モータハウジング１１ａの外周面に沿ってモータ軸Ｊ１回りの周方向に延びる円弧板状のリブ１１０ａと、軸方向に延びる矩形板状のリブ１１０ｂとを含む。格子状のリブ１１ｄを構成するリブの板面は、前後方向に沿って配置される。
車軸接続部１１ｃが延びる前後方向に移動する可動型を用いることで、モータハウジング１１ａの外周面に、後側へ突出する格子状のリブ１１ｄを容易に成形できる。これにより、高強度のモータハウジング１１ａを容易に製造できる。 In the drive device 1 of the present embodiment, the axle connection portion 11c having the first wall portion 101 can be molded by die casting using a movable mold that can move in the front-rear direction (X-axis direction). That is, the die-cast axle connecting portion 11c can be released from the mold by moving the mold in the direction in which the axle connecting portion 11c extends.
In addition, as shown in FIGS. 4 and 5, the motor housing 11a of the present embodiment has grid-like ribs 11d projecting rearward from the outer peripheral surface of the motor housing 11a. As shown in FIG. 4, the rib 11d includes an arc plate-shaped rib 110a extending in the circumferential direction around the motor shaft J1 along the outer peripheral surface of the motor housing 11a and a rectangular plate-shaped rib 110b extending in the axial direction. . Plate surfaces of ribs forming the grid-like ribs 11d are arranged along the front-rear direction.
By using a movable die that moves in the front-rear direction along which the axle connection portion 11c extends, the grid-like ribs 11d that protrude rearward can be easily formed on the outer peripheral surface of the motor housing 11a. This makes it possible to easily manufacture the motor housing 11a with high strength.

車軸接続部１１ｃの第２壁部１０２は、図３および図４に示すように、上部壁１０２ａと、後部壁１０２ｂと、下部壁１０２ｃとを有する。
上部壁１０２ａは、第１壁部１０１の上側に位置し、上側を向く壁面を有する平板状である。上部壁１０２ａの前側の端部は、モータハウジング１１ａの外周面に接続される。
後部壁１０２ｂは、上部壁１０２ａの後側の端部から車軸挿入孔１１５を回り込んで下側へ延びる概略円筒状の壁部である。下部壁１０２ｃは、第１壁部１０１の下側に位置し、後部壁１０２ｂの下部前方側の端部から前側へ延びる。
下部壁１０２ｃは、下側を向く壁面を有する平板状である。本実施形態の場合、下部壁１０２ｃの前側の端部は、ポンプハウジング１７の後側を向く面に接続される。下部壁１０２ｃは、モータハウジング１１ａの外周面に接続されてもよい。 The second wall portion 102 of the axle connecting portion 11c has an upper wall 102a, a rear wall 102b and a lower wall 102c, as shown in FIGS.
The upper wall 102a is positioned above the first wall portion 101 and has a flat plate shape with a wall surface facing upward. The front end of the upper wall 102a is connected to the outer peripheral surface of the motor housing 11a.
The rear wall 102b is a substantially cylindrical wall portion extending downward around the axle insertion hole 115 from the rear end of the upper wall 102a. The lower wall 102c is positioned below the first wall 101 and extends forward from the lower front end of the rear wall 102b.
The lower wall 102c has a flat plate shape with a wall surface facing downward. In this embodiment, the front end of the lower wall 102c is connected to the rearward facing surface of the pump housing 17 . The lower wall 102c may be connected to the outer peripheral surface of the motor housing 11a.

本実施形態では、モータハウジング１１ａの外周面に接続される第２壁部１０２により、車軸接続部１１ｃの強度を高めることができる。これにより、車両駆動時の車軸の傾きが抑制され、減速機構のギヤの摩耗等を低減できる。後部壁１０２ｂは車軸挿入孔１１５の近傍に位置し、第２壁部１０２の上部壁１０２ａおよび下部壁１０２ｃは車軸挿入孔１１５よりもモータハウジング１１ａ側に位置するため、駆動装置１の外形が大型化することはない。 In this embodiment, the strength of the axle connection portion 11c can be increased by the second wall portion 102 connected to the outer peripheral surface of the motor housing 11a. As a result, tilting of the axle when the vehicle is driven is suppressed, and wear of the gears of the speed reduction mechanism can be reduced. The rear wall 102b is located near the axle insertion hole 115, and the upper wall 102a and the lower wall 102c of the second wall portion 102 are located closer to the motor housing 11a than the axle insertion hole 115, so that the outer shape of the drive device 1 is large. does not become

車軸接続部１１ｃは、第２壁部１０２の外周面に、複数のリブ１０５ａ、１０５ｂ、１０６ａ、１０６ｂ、１０６ｃ、１０７ａ、および１０７ｂを有する。
リブ１０５ａ、１０５ｂは、第２壁部１０２に沿って延びる。リブ１０５ａ、１０５ｂは、それぞれ、径方向と直交する平面上に位置する。リブ１０５ａ、１０５ｂは、上部壁１０２ａ上において前後方向に延びる。リブ１０５ａ、１０５ｂは、上部壁１０２ａの上面から上側へ突出する。リブ１０５ａ、１０５ｂは、後部壁１０２ｂ上において、後方から見て上下方向に延びる。リブ１０５ａ、１０５ｂは、後部壁１０２ｂの下端から前側へ回り込み、下部壁１０２ｃの下側を向く面に接続される。リブ１０５ａ、１０５ｂは、後部壁１０２ｂ上から、差動軸Ｊ２の径方向外側に向かって突出する。 Axle connection portion 11 c has a plurality of ribs 105 a, 105 b, 106 a, 106 b, 106 c, 107 a, and 107 b on the outer peripheral surface of second wall portion 102 .
Ribs 105 a and 105 b extend along second wall portion 102 . The ribs 105a and 105b are each located on a plane perpendicular to the radial direction. The ribs 105a, 105b extend longitudinally on the upper wall 102a. The ribs 105a, 105b protrude upward from the upper surface of the upper wall 102a. The ribs 105a, 105b extend vertically on the rear wall 102b as viewed from the rear. The ribs 105a, 105b wrap around from the lower end of the rear wall 102b to the front side and are connected to the downward facing surface of the lower wall 102c. The ribs 105a, 105b protrude outward in the radial direction of the differential shaft J2 from above the rear wall 102b.

リブ１０６ａ～１０６ｃは、図３および図４に示すように、第２壁部１０２の後側を向く領域に位置する。リブ１０６ａ～１０６ｃは、後部壁１０２ｂ上に位置する。リブ１０６ａ～１０６ｃは、差動軸Ｊ２に沿って直線状に延びる。３本のリブ１０６ａ～１０６ｃは、上下方向に等間隔に並ぶ。リブ１０６ａ～１０６ｃは、後部壁１０２ｂの外周面から後側に向かって突出する。リブ１０６ａ～１０６ｃは、後部壁１０２ｂの外周面から後側に向かうに従って幅が狭くなる形状を有する。 The ribs 106a-106c are located in the rearward facing region of the second wall portion 102, as shown in FIGS. Ribs 106a-106c are located on rear wall 102b. The ribs 106a-106c extend linearly along the differential axis J2. The three ribs 106a to 106c are arranged vertically at regular intervals. The ribs 106a-106c protrude rearward from the outer peripheral surface of the rear wall 102b. The ribs 106a to 106c have a shape whose width narrows from the outer peripheral surface of the rear wall 102b toward the rear side.

リブ１０６ａ～１０６ｃは、リブ１０５ａ、１０５ｂと交差し、格子状のリブを構成する。リブ１０５ａ、１０５ｂ、および１０６ａ～１０６ｃは、後部壁１０２ｂの後端において、いずれも後側に向かって突出する。すなわち、リブ１０５ａ、１０５ｂ、および１０６ａ～１０６ｃは、モータハウジング１１ａの格子状のリブ１１ｄと同じ方向に突出する。リブ１０５ａ、１０５ｂ、および１０６ａ～１０６ｃからなる格子状のリブが車軸接続部１１ｃから突出する方向と、リブ１１ｄがモータハウジング１１ａから突出する方向は、いずれも、車軸接続部１１ｃがモータハウジング１１ａから突出する前後方向に沿う方向である。
この構成によれば、車軸接続部１１ｃとモータハウジング１１ａの両方に、格子状のリブを同一の金型で成形できる。本実施形態の構成によれば、高強度のハウジング１０を効率よく製造できる。 The ribs 106a to 106c intersect with the ribs 105a and 105b to form grid-like ribs. Ribs 105a, 105b, and 106a-106c all project rearward at the rear end of rear wall 102b. That is, the ribs 105a, 105b, and 106a-106c protrude in the same direction as the lattice ribs 11d of the motor housing 11a. The direction in which the grid-shaped ribs composed of ribs 105a, 105b, and 106a to 106c protrude from the axle connecting portion 11c and the direction in which the rib 11d protrudes from the motor housing 11a are both the directions in which the axle connecting portion 11c protrudes from the motor housing 11a. It is a direction along the projecting front-rear direction.
According to this configuration, the grid-like ribs can be formed in the same mold on both the axle connecting portion 11c and the motor housing 11a. According to the configuration of this embodiment, the high-strength housing 10 can be efficiently manufactured.

また本実施形態の連結部１１ｂは、図４および図５に示すように、連結部１１ｂの後側を向く面から後側に突出する複数のリブ１１１ａ、１１１ｂ、１１１ｃを有する。リブ１１１ａ～１１１ｃは、連結部１１ｂの後側を向く面と、右側を向く面との角部に位置する三角板状のリブである。リブ１１１ａ～１１１ｃは、後側から見て軸方向に延びる。リブ１１１ａ～１１１ｃの板面は、前後方向に沿って配置される。すなわち、リブ１１１ａ～１１１ｃの突出方向は、車軸接続部１１ｃのリブ１０６ａ～１０６ｃおよびモータハウジング１１ａのリブ１１ｄの突出方向に一致する。
本実施形態の構成によれば、車軸接続部１１ｃおよびモータハウジング１１ａの格子状のリブに加えて、連結部１１ｂのリブ１１１ａ～１１１ｃについても、同一の金型で成形できる。本実施形態の構成によれば、高強度のハウジング１０を効率よく製造できる。 4 and 5, the connecting portion 11b of the present embodiment has a plurality of ribs 111a, 111b, and 111c projecting rearward from the surface facing the rear side of the connecting portion 11b. The ribs 111a to 111c are triangular plate-shaped ribs positioned at the corners of the rearward facing surface and the rightward facing surface of the connecting portion 11b. The ribs 111a-111c extend axially when viewed from the rear side. Plate surfaces of the ribs 111a to 111c are arranged along the front-rear direction. That is, the ribs 111a-111c protrude in the same direction as the ribs 106a-106c of the axle connecting portion 11c and the rib 11d of the motor housing 11a.
According to the configuration of this embodiment, the ribs 111a to 111c of the connecting portion 11b as well as the grid-like ribs of the axle connection portion 11c and the motor housing 11a can be molded with the same mold. According to the configuration of this embodiment, the high-strength housing 10 can be efficiently manufactured.

リブ１０７ａ、１０７ｂは、図３に示すように、第２壁部１０２の下側を向く面から下側に突出する。リブ１０７ａ、１０７ｂは、後部壁１０２ｂの下部に位置する。リブ１０７ａ、１０７ｂは、後側から見て三角板状のリブである。リブ１０７ａ、１０７ｂの板面は、軸方向に沿って配置される。リブ１０７ａ、１０７ｂは、前後方向に並ぶ。 The ribs 107a and 107b protrude downward from the downward facing surface of the second wall portion 102, as shown in FIG. Ribs 107a, 107b are located on the lower portion of rear wall 102b. The ribs 107a and 107b are triangular plate-shaped ribs when viewed from the rear side. Plate surfaces of the ribs 107a and 107b are arranged along the axial direction. The ribs 107a and 107b are arranged in the front-rear direction.

リブ１０７ａ、１０７ｂは、第２壁部１０２に沿って作動軸Ｊ２の周方向に延びるリブ１０５ａ、１０５ｂと交差し、車軸接続部１１ｃの下部において格子状のリブを構成する。したがって、車軸接続部１１ｃは、軸方向と直交する方向を向く外周面に、格子状のリブを有する。この構成によれば、車軸接続部１１ｃの上下方向への振れを抑制でき、車軸の支持強度を向上できる。 The ribs 107a and 107b intersect with the ribs 105a and 105b extending in the circumferential direction of the operating axis J2 along the second wall portion 102 to form a grid-like rib at the lower portion of the axle connecting portion 11c. Therefore, the axle connecting portion 11c has grid-like ribs on its outer peripheral surface facing in the direction orthogonal to the axial direction. According to this configuration, it is possible to suppress the vertical deflection of the axle connection portion 11c and improve the support strength of the axle.

本実施形態において、車軸接続部１１ｃの軸方向から見た幅は、図３および図４に示すように、後部壁１０２ｂの後方側の先端で最も小さく、モータハウジング１１ａ側に向かうに従って後部壁１０２ｂの曲面に沿って大きくなる。また上部壁１０２ａは、モータハウジング１１ａ側に向かうに従って上側に傾斜する斜面である。車軸接続部１１ｃの下部には、第２壁部１０２の下端から下側へ延びる板状のリブ１０７ａが位置する。リブ１０７ａは、前後方向（Ｘ軸方向）を向く板面を有する平板状である。 In this embodiment, as shown in FIGS. 3 and 4, the width of the axle connecting portion 11c when viewed in the axial direction is the smallest at the rear end of the rear wall 102b and increases toward the motor housing 11a side. increases along the curved surface of Further, the upper wall 102a is a slope that slopes upward toward the motor housing 11a. A plate-like rib 107a extending downward from the lower end of the second wall portion 102 is positioned below the axle connecting portion 11c. The rib 107a has a flat plate shape having a plate surface facing in the front-rear direction (X-axis direction).

上記構成によれば、本実施形態の車軸接続部１１ｃでは、第２壁部１０２の上側部分については後部壁１０２ｂの後方側先端からモータハウジング１１ａの外周面までの間、第２壁部１０２の下側部分については後部壁１０２ｂの後方側先端からリブ１０７ａまでの間において、軸方向から見た幅が、前後方向に沿ってモータハウジング１１ａ側に向かうに従って大きくなる。この構成によれば、第２壁部１０２を有する車軸接続部１１ｃを、前後方向に移動可能な可動型を用いるダイカスト成型によって成形できる。これにより、図４に示すように、モータハウジング１１ａの外周面に格子状のリブ１１ｄを容易に成形でき、モータハウジング１１ａの強度を高めることができる。 According to the above configuration, in the axle connection portion 11c of the present embodiment, the upper portion of the second wall portion 102 extends from the rear end of the rear wall 102b to the outer peripheral surface of the motor housing 11a. Regarding the lower portion, the width from the rear end of the rear wall 102b to the rib 107a when viewed in the axial direction increases toward the motor housing 11a along the front-rear direction. According to this configuration, the axle connection portion 11c having the second wall portion 102 can be molded by die casting using a movable mold that can move in the front-rear direction. Thereby, as shown in FIG. 4, the grid-like ribs 11d can be easily formed on the outer peripheral surface of the motor housing 11a, and the strength of the motor housing 11a can be increased.

駆動装置１は、補機としてオイルポンプ３０およびオイルクーラー３５を有する。オイルポンプ３０およびオイルクーラー３５はハウジング１０の下部に配置される。オイルポンプ３０は、モータハウジング１１ａの下側に位置するポンプハウジング１７に、モータ軸Ｊ１に沿う方向に挿入される。オイルクーラー３５は、駆動装置１の前端下部に位置する。オイルポンプ３０は、オイルクーラー３５の後側に位置する。駆動装置１は、パーキングロック機構用の電動アクチュエータを備えていてもよい。 The drive system 1 has an oil pump 30 and an oil cooler 35 as auxiliary machines. An oil pump 30 and an oil cooler 35 are arranged below the housing 10 . The oil pump 30 is inserted in a direction along the motor shaft J1 into the pump housing 17 positioned below the motor housing 11a. The oil cooler 35 is positioned below the front end of the driving device 1 . The oil pump 30 is positioned behind the oil cooler 35 . The drive device 1 may include an electric actuator for a parking lock mechanism.

図１および図２に示すように、インバータユニット４０は、ハウジング１０の後側に位置する。インバータユニット４０は、インバータケース４１を有する。インバータケース４１内には、図示しないインバータが収容される。インバータケース４１内のインバータは、モータ２０のステータと電気的に接続され、モータ２０を駆動する。 As shown in FIGS. 1 and 2, the inverter unit 40 is positioned on the rear side of the housing 10. As shown in FIG. The inverter unit 40 has an inverter case 41 . An inverter (not shown) is accommodated in the inverter case 41 . The inverter in inverter case 41 is electrically connected to the stator of motor 20 to drive motor 20 .

インバータケース４１は、ハウジング１０に固定される。すなわち、インバータケース４１はハウジングに一体的に設けられる。本実施形態においてインバータケース４１は、ハウジング１０の径方向外側面に固定される。より詳細には、インバータケース４１は、モータハウジング１１ａの径方向外側面のうち後側の部分に固定される。すなわち、インバータケース４１は、軸方向と直交する前後方向においてハウジング１０の後側に固定される。 Inverter case 41 is fixed to housing 10 . That is, the inverter case 41 is provided integrally with the housing. In this embodiment, the inverter case 41 is fixed to the radial outer surface of the housing 10 . More specifically, the inverter case 41 is fixed to the rear portion of the radial outer surface of the motor housing 11a. That is, the inverter case 41 is fixed to the rear side of the housing 10 in the front-rear direction perpendicular to the axial direction.

図１に示すように、インバータケース４１は、軸方向に延びる略矩形箱状である。インバータケース４１は、インバータケース本体部４２と、インバータカバー４３と、を有する。インバータケース本体部４２は、上側に開口し、軸方向に長い略矩形箱状である。
インバータカバー４３は、インバータケース本体部４２の上側の開口を塞ぐ。 As shown in FIG. 1, the inverter case 41 has a substantially rectangular box shape extending in the axial direction. The inverter case 41 has an inverter case body portion 42 and an inverter cover 43 . The inverter case main body 42 has a substantially rectangular box shape that is open upward and elongated in the axial direction.
The inverter cover 43 closes the upper opening of the inverter case main body 42 .

本明細書において説明した各構成は、相互に矛盾しない範囲内において、適宜組み合わせることができる。 Each configuration described in this specification can be appropriately combined within a mutually consistent range.

１…駆動装置、１０…ハウジング、１１ａ…モータハウジング、１１ｂ…連結部、１１ｃ…車軸接続部、１１ｄ，１０５ａ，１０５ｂ，１０６ａ～１０６ｃ，１０７ａ，１０７ｂ，１１０ａ，１１０ｂ，１１１ａ～１１１ｃ…リブ、１２…ギヤカバー、２０…モータ、１０１…第１壁部、１０２…第２壁部、１１５…車軸挿入孔、Ｈ…突出高さ、Ｊ１…モータ軸、Ｊ２…差動軸 REFERENCE SIGNS LIST 1 driving device 10 housing 11a motor housing 11b connecting portion 11c axle connecting portion 11d, 105a, 105b, 106a to 106c, 107a, 107b, 110a, 110b, 111a to 111c rib 12 Gear cover 20 Motor 101 First wall 102 Second wall 115 Axle insertion hole H Projection height J1 Motor shaft J2 Differential shaft

Claims (2)

モータ軸を中心として回転するロータを有するモータと、
前記モータの動力を車軸に伝達する伝達機構と、
前記モータおよび前記伝達機構を収容するハウジングと、
を備え、
前記ハウジングは、
前記モータ軸に沿って一方側から他方側へ延びる筒状のモータハウジングと、
前記モータハウジングの軸方向他方側の端部から径方向に広がる連結部と、
前記連結部との間に前記伝達機構を収容し、前記連結部と軸方向に接合されるギヤカバーと、
車両の車軸が挿入される車軸挿入孔を有し前記連結部から軸方向一方側に突出する車軸接続部と、
を有し、
前記モータハウジングと前記連結部と前記車軸接続部とは単一部材の一部であり、
前記車軸接続部は、
前記車軸挿入孔と、
前記連結部よりも軸方向一方側に位置するとともに、前記モータハウジング側へ延びて該モータハウジングの外周面に接続する、軸方向一方側を向く面を有する第１壁部と、
前記第１壁部の外周端から軸方向他方側に延びて前記連結部と接続するとともに、前記モータハウジングの外周面に接続する筒状の第２壁部と、を有し、
前記第２壁部は、
前記モータハウジングとは反対側を向く領域に、第１のリブと、
前記第１のリブと交差して格子状のリブを形成するとともに、前記モータハウジングとは反対側を向く領域のみに形成される第２のリブと、を有する、
駆動装置。 a motor having a rotor that rotates about a motor shaft;
a transmission mechanism that transmits power of the motor to an axle;
a housing that accommodates the motor and the transmission mechanism;
with
The housing is
a cylindrical motor housing extending from one side to the other side along the motor shaft;
a connecting portion extending radially from the other axial end of the motor housing;
a gear cover that accommodates the transmission mechanism between itself and the connecting portion and is joined to the connecting portion in the axial direction;
an axle connecting portion having an axle insertion hole into which an axle of a vehicle is inserted and projecting from the connecting portion to one side in the axial direction;
has
said motor housing, said coupling portion and said axle connection portion being part of a single member;
The axle connecting portion is
the axle insertion hole;
a first wall portion located on one side in the axial direction of the connecting portion and extending toward the motor housing side and connected to the outer peripheral surface of the motor housing, the first wall portion having a surface facing the one side in the axial direction;
a tubular second wall portion extending from the outer peripheral end of the first wall portion to the other side in the axial direction and connected to the connecting portion and connected to the outer peripheral surface of the motor housing;
The second wall portion is
a first rib in a region facing away from the motor housing;
and a second rib that intersects with the first rib to form a grid-like rib and is formed only in a region facing away from the motor housing,
drive. 前記モータハウジングは、前記モータハウジングの外周面のうち、前記車軸接続部側を向く領域にリブを有し、 The motor housing has ribs in a region of the outer peripheral surface of the motor housing facing the axle connecting portion,
前記格子状のリブが前記車軸接続部から突出する方向と、前記モータハウジングのリブが前記モータハウジングから突出する方向は、いずれも、前記車軸接続部が前記モータハウジングから突出する方向に沿う方向である、 Both the direction in which the grid-shaped rib protrudes from the axle connecting portion and the direction in which the rib of the motor housing protrudes from the motor housing are along the direction in which the axle connecting portion protrudes from the motor housing. be,
請求項１に記載の駆動装置。2. The driving device according to claim 1.
JP2019075820A 2019-04-11 2019-04-11 drive Active JP7298257B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019075820A JP7298257B2 (en) 2019-04-11 2019-04-11 drive
CN202010207188.2A CN111817498B (en) 2019-04-11 2020-03-23 Drive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019075820A JP7298257B2 (en) 2019-04-11 2019-04-11 drive

Publications (2)

Publication Number Publication Date
JP2020174481A JP2020174481A (en) 2020-10-22
JP7298257B2 true JP7298257B2 (en) 2023-06-27

Family

ID=72831796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019075820A Active JP7298257B2 (en) 2019-04-11 2019-04-11 drive

Country Status (2)

Country Link
JP (1) JP7298257B2 (en)
CN (1) CN111817498B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7414755B2 (en) 2021-02-24 2024-01-16 トヨタ自動車株式会社 drive device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017225296A (en) 2016-06-17 2017-12-21 ミネベアミツミ株式会社 Rotary device
JP2018027003A (en) 2016-08-09 2018-02-15 日本電産株式会社 Motor unit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6138106B2 (en) * 2014-11-27 2017-05-31 アイシン精機株式会社 Reducer lubrication structure
CN107531141B (en) * 2015-05-13 2019-11-19 爱知机械工业株式会社 Power transmission and the power output device for having the power transmission
DE112017004015T5 (en) * 2016-08-09 2019-05-02 Nidec Corporation MOTOR UNIT
JP7124699B2 (en) * 2016-08-12 2022-08-24 日本電産株式会社 Motor and electric power steering device
JP2019027512A (en) * 2017-07-31 2019-02-21 ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ Driving device for vehicle
CN109510364B (en) * 2017-09-15 2021-04-16 日本电产株式会社 Drive device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017225296A (en) 2016-06-17 2017-12-21 ミネベアミツミ株式会社 Rotary device
JP2018027003A (en) 2016-08-09 2018-02-15 日本電産株式会社 Motor unit

Also Published As

Publication number Publication date
JP2020174481A (en) 2020-10-22
CN111817498B (en) 2023-04-11
CN111817498A (en) 2020-10-23

Similar Documents

Publication Publication Date Title
WO2019188844A1 (en) Drive device
JP7491306B2 (en) Inverter unit and motor unit
WO2019216043A1 (en) Drive apparatus
US11365797B2 (en) Motor assembly
US11670993B2 (en) Motor unit
JP7298257B2 (en) drive
WO2015166841A1 (en) Transmission
CN111756131B (en) Motor and driving device
WO2019208096A1 (en) Motor unit
JP5900012B2 (en) Powertrain structure for electric vehicles
US20220345009A1 (en) Drive motor module
US11946543B2 (en) Parking mechanism and method of assembling parking mechanism
JPWO2020067260A1 (en) Drive device
US20230344303A1 (en) Motor and motor unit
JP2018016247A (en) Power unit structure of electric vehicle
US20220286025A1 (en) Rotary electric machine and drive device
US20220368203A1 (en) Motor and motor unit
US20230039195A1 (en) Motor unit and electric car
WO2020209244A1 (en) Motor unit
US20210276624A1 (en) Vehicle unit installation structure
JP7271937B2 (en) Drive system for hybrid vehicle
JP2022170497A (en) Drive device
US20240235319A9 (en) Drive motor module
US20220337134A1 (en) Drive motor module
WO2022180872A1 (en) Drive motor module

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20220330

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20230207

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230307

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230428

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20230516

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230529

R151 Written notification of patent or utility model registration

Ref document number: 7298257

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151