JP5045497B2 - Electric drive - Google Patents

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JP5045497B2
JP5045497B2 JP2008050898A JP2008050898A JP5045497B2 JP 5045497 B2 JP5045497 B2 JP 5045497B2 JP 2008050898 A JP2008050898 A JP 2008050898A JP 2008050898 A JP2008050898 A JP 2008050898A JP 5045497 B2 JP5045497 B2 JP 5045497B2
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oil
oil reservoir
electric drive
drive device
rotor
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JP2009209965A (en
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弘之 平野
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Nissan Motor Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • General Details Of Gearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

本発明は、潤滑および冷却箇所にオイルを供給する機構を具えた電動式駆動装置に関するものである。   The present invention relates to an electric drive device having a mechanism for supplying oil to lubrication and cooling points.

従来、回転部材および該回転部材に連結されるシャフトをケースに収納すると共に該ケースの下方に設けられたオイル溜りのオイルをその回転部材にて掻き上げることにより潤滑箇所にオイルを供給するドライブユニットの潤滑装置が知られている。   Conventionally, a rotary unit and a shaft connected to the rotary member are housed in a case and an oil reservoir provided below the case is scraped up by the rotary member to supply oil to a lubrication point. Lubricating devices are known.

そして前述のような潤滑装置の一例として、回転部材が低速回転しておりオイル掻き上げ量が少ない場合であってもオイルを充分に且つ素早く潤滑箇所に供給することができるように、ケースの一側面にシャフトの一端を包囲するボスを形成し、それらボス及びシャフトにて囲まれるケース側空部に上方に開口を有するオイルリザーバ部を形成し、そのオイルリザーバ部を潤滑必要箇所に連通した潤滑装置、およびガイド用リブや滴下用リブをケースに設けた潤滑装置が知られている（例えば、特許文献１参照）。
特開２００１−１７３７６２号公報 As an example of the lubrication device as described above, even if the rotating member is rotating at a low speed and the amount of oil scraping is small, the case can be supplied with a sufficient amount of oil quickly and quickly. A boss that surrounds one end of the shaft is formed on the side surface, and an oil reservoir portion that has an upper opening is formed in the case-side empty portion that is surrounded by the boss and the shaft, and the oil reservoir portion is communicated with a location that requires lubrication. There is known a lubrication device in which a device and a guide rib or a dropping rib are provided in a case (see, for example, Patent Document 1).
JP 2001-173762 A

しかし、従来技術に係るドライブユニットの潤滑装置では、オイルリザーバ部へオイルを導入するための開口をボスの一部を切り欠いて形成するため、該切り欠きによりボスのシャフト支持部の剛性が大幅に低下するという問題があった。   However, in the drive unit lubrication device according to the prior art, since the opening for introducing oil into the oil reservoir portion is formed by cutting out a part of the boss, the notch greatly increases the rigidity of the shaft support portion of the boss. There was a problem of lowering.

また、オイルリザーバ部の開口部にシャフトの軸線方向にオイルを堰き止める構造が設けられていないので、リブを用いて回収したオイルの大部分がオイルリザーバ部に供給される前に零れてしまう可能性が高く、効率的にオイルの収集が出来ないという問題もあった。   In addition, since the oil reservoir section is not provided with a structure for blocking oil in the axial direction of the shaft, most of the oil recovered using the ribs may spill before being supplied to the oil reservoir section. There was also a problem that the oil was not collected efficiently.

本発明の電動式駆動装置は、ロータと、そのロータを支持するロータ軸と、ステータとをケースに収納して具えると共に、そのケース内に第１オイル貯留部と、第２オイル貯留部とを具え、前記ロータ軸は、前記ケースに設けられた軸受ボスを用いて回転可能に支持されると共に、前記オイルを潤滑箇所および冷却箇所へと供給する供給油路を有し、前記第１オイル貯留部は、前記ケースの下部に設けられ、前記第２オイル貯留部は、少なくとも一部が前記ロータ軸の一端部と前記ケースとの間に位置して前記供給油路と連通しており、前記ロータの回転により前記第１オイル貯留部に貯留されたオイルを掻き上げて、掻き上げられたオイルの少なくとも一部を前記第２オイル貯留部および前記供給油路を介して前記潤滑箇所および前記冷却箇所へと供給する電動式駆動装置であって、前記第２オイル貯留部よりケースの上部側であって前記ロータ軸の前記軸受ボスの外周縁部に第３オイル貯留部が設けられ、その第３オイル貯留部が、前記第２オイル貯留部と連通油路を介して連通されているとともに、前記ケースには、前記ロータの回転を検出する回転検出器が更に収納されており、前記回転検出器は、固定子と回転子とを備え、前記第３オイル貯留部の一部が、前記固定子の側面の一部で形成される、ことを特徴とするものである。 The electric drive device of the present invention includes a rotor, a rotor shaft that supports the rotor, and a stator accommodated in a case, and a first oil reservoir, a second oil reservoir in the case, The rotor shaft is rotatably supported using a bearing boss provided in the case, and has a supply oil passage for supplying the oil to a lubrication location and a cooling location, and the first oil The reservoir is provided in a lower portion of the case, and the second oil reservoir is at least partially located between one end of the rotor shaft and the case and communicates with the supply oil path, The oil stored in the first oil storage unit is scraped up by the rotation of the rotor, and at least a part of the scraped oil is removed from the lubrication point and the oil via the second oil storage unit and the supply oil passage. cooling And a third oil reservoir is provided on the outer peripheral edge of the bearing boss of the rotor shaft on the upper side of the case from the second oil reservoir. A three oil reservoir is communicated with the second oil reservoir via a communication oil passage, and a rotation detector for detecting rotation of the rotor is further accommodated in the case, and the rotation detection The container includes a stator and a rotor, and a part of the third oil reservoir is formed by a part of a side surface of the stator .

本発明の電動式駆動装置によれば、第２オイル貯留部よりケースの上部側であってロータ軸の軸受ボス外周縁部に、第２オイル貯留部と連通油路を介して連通された第３オイル貯留部を設けているので、ロータ軸受ボスに開口部となる切り欠きを設ける必要が無く、ロータ軸の支持剛性を確保することができる。また、連通油路が上述した従来技術の開口部に相当するので、第２オイル貯留部に開口部を設ける必要がなく、シャフトの軸線方向に回収したオイルが零れることを防止することができる。更に、連通油路に対して十分に大きな面積を持つ第３オイル貯留部の壁部をオイル回収面とすることが出来るので、第２オイル貯留部への回収油量を増大させることができる。その上、第３オイル貯留部にも回収したオイルを一時的に貯留することが可能であるので、ロータの回転数変動等により掻き上げオイル量にムラが生じても第３オイル貯留部がバッファの役割を果たして回収したオイルを第２オイル貯留部に安定的に供給することができる。   According to the electric drive device of the present invention, the second oil reservoir is connected to the outer peripheral edge of the bearing boss of the rotor shaft on the upper side of the case with the second oil reservoir via the communication oil passage. Since the three oil storage portion is provided, it is not necessary to provide a notch serving as an opening in the rotor bearing boss, and the support rigidity of the rotor shaft can be ensured. In addition, since the communication oil passage corresponds to the above-described opening of the prior art, it is not necessary to provide an opening in the second oil reservoir, and oil collected in the axial direction of the shaft can be prevented from spilling. Furthermore, since the wall portion of the third oil storage portion having a sufficiently large area with respect to the communication oil passage can be used as the oil recovery surface, the amount of oil recovered in the second oil storage portion can be increased. In addition, since the recovered oil can also be temporarily stored in the third oil storage section, the third oil storage section is buffered even if unevenness occurs in the amount of oil scraped up due to fluctuations in the rotational speed of the rotor. The oil recovered by fulfilling the role of can be stably supplied to the second oil reservoir.

以下、本発明の実施の形態を、図面に基づき詳細に説明する。ここに図１は、本発明にかかる電動式駆動装置の第１実施例の断面図であり、図２（ａ），（ｂ）は、第１実施例の電動式駆動装置の第２オイル貯留部および第３オイル貯留部周辺の構造を説明する説明図および固定子の形状を示す正面図である。図３は、本発明にかかる電動式駆動装置の第２実施例の断面図であり、図４（ａ），（ｂ）は、第２実施例の電動式駆動装置の第２オイル貯留部および第３オイル貯留部周辺の構造を説明する説明図および固定子の形状を示す正面図である。図５は、本発明にかかる電動式駆動装置の第３実施例の断面図であり、図６は、第３実施例の電動式駆動装置の第２オイル貯留部および第３オイル貯留部周辺の構造を説明する説明図である。そして図７は、本発明にかかる電動式駆動装置の第４実施例の断面図であり、図８は、第４実施例の電動式駆動装置の第２オイル貯留部および第３オイル貯留部周辺の構造を説明する説明図である。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a first embodiment of the electric drive device according to the present invention, and FIGS. 2 (a) and 2 (b) show a second oil reservoir of the electric drive device of the first embodiment. It is explanatory drawing explaining the structure around a part and a 3rd oil storage part, and a front view which shows the shape of a stator. FIG. 3 is a cross-sectional view of a second embodiment of the electric drive device according to the present invention, and FIGS. 4 (a) and 4 (b) show the second oil reservoir and the electric drive device of the second embodiment. It is explanatory drawing explaining the structure of a 3rd oil storage part periphery, and a front view which shows the shape of a stator. FIG. 5 is a cross-sectional view of a third embodiment of the electric drive device according to the present invention, and FIG. 6 shows the vicinity of the second oil storage portion and the third oil storage portion of the electric drive device of the third embodiment. It is explanatory drawing explaining a structure. FIG. 7 is a cross-sectional view of a fourth embodiment of the electric drive device according to the present invention, and FIG. 8 shows the vicinity of the second oil storage portion and the third oil storage portion of the electric drive device of the fourth embodiment. It is explanatory drawing explaining the structure.

図１に示すように、本発明の第１実施例の電動式駆動装置１は、第１ケース３と第２ケース４とをボルト５で固定してなるケース２の内部に、ロータ６と、ロータ軸７と、ステータ８と、オイル９と、第１オイル貯留部１０と、第２オイル貯留部１１と、第３オイル貯留部１２とを具えている。   As shown in FIG. 1, the electric drive device 1 according to the first embodiment of the present invention includes a rotor 6 in a case 2 formed by fixing a first case 3 and a second case 4 with bolts 5; The rotor shaft 7, the stator 8, the oil 9, the first oil reservoir 10, the second oil reservoir 11, and the third oil reservoir 12 are provided.

この電動式駆動装置１は、例えばステータ８に複数のマグネットコイル１３を巻設し、交流電流をマグネットコイル１３に供給することでステータ８に回転磁界を発生させてロータ６を駆動する、磁界を利用した駆動装置である。そして、ロータ６を駆動して得られた回転は、ロータ軸７から減速機１４を介して出力軸１５へと伝達されることによりケース２の外部へと出力される。   For example, the electric drive device 1 has a plurality of magnet coils 13 wound around the stator 8 and supplies an alternating current to the magnet coil 13 to generate a rotating magnetic field in the stator 8 to drive the rotor 6. It is the drive device used. Then, the rotation obtained by driving the rotor 6 is transmitted from the rotor shaft 7 to the output shaft 15 via the speed reducer 14 and is output to the outside of the case 2.

ここで、ロータ軸７は、ケース２内部の略中心を通り、第１ロータ軸受１６および第２ロータ軸受１７を介して、第１ケース３および第２ケース４にそれぞれ設けられた軸受ボス３ａ、４ａに回転自在に支持されている。そして、ロータ軸７の先端部には減速機１４への入力部材であるサンギア１８が形成されている。また、ロータ軸７の長手方向略中央には、ロータ軸７の半径方向外方に延在してロータ６とロータ軸７とを結合する結合部１９が設けられている。更に、ロータ軸７の内部には、そのロータ軸７の中心を通ってケース２内の各部（ベアリング、歯車等）へとオイル９を供給する供給油路としての各部潤滑油路２０が設けられている。   Here, the rotor shaft 7 passes through the approximate center inside the case 2, and the bearing bosses 3 a provided on the first case 3 and the second case 4 via the first rotor bearing 16 and the second rotor bearing 17, respectively. 4a is rotatably supported. A sun gear 18 that is an input member to the speed reducer 14 is formed at the tip of the rotor shaft 7. A coupling portion 19 that extends outward in the radial direction of the rotor shaft 7 and couples the rotor 6 and the rotor shaft 7 is provided at substantially the center in the longitudinal direction of the rotor shaft 7. Further, inside the rotor shaft 7, there are provided lubricating oil passages 20 as supply oil passages for supplying the oil 9 to the respective portions (bearings, gears, etc.) in the case 2 through the center of the rotor shaft 7. ing.

ロータ６は、円筒形状で、前述した結合部１９を介してロータ軸７に取り付けられている。また、ロータ６の半径方向内方では、可能な限り空間を有することができるように結合部１９の幅がロータ６の幅より小さくされている。そして、そのロータ６の内側の空間には、固定子２１と回転子２２とよりなる回転検出器２３と、第１ロータ軸受１６を支持する軸受ボス３ａの外周縁上で上方向に形成された第３オイル貯留部１２の一部とが、ロータ軸７の軸線方向にロータ６とオーバーラップして設置されている。   The rotor 6 has a cylindrical shape and is attached to the rotor shaft 7 via the coupling portion 19 described above. In addition, the width of the coupling portion 19 is made smaller than the width of the rotor 6 so as to have as much space as possible inside the rotor 6 in the radial direction. In the inner space of the rotor 6, the rotation detector 23 including the stator 21 and the rotor 22 and the outer periphery of the bearing boss 3 a that supports the first rotor bearing 16 are formed upward. A part of the third oil reservoir 12 is installed so as to overlap the rotor 6 in the axial direction of the rotor shaft 7.

ステータ８は、円筒形状で、ステータ８の内周面とロータ６の外周面とが微小な隙間を有するように設置されている。また、そのステータ８は、外周部を第２ケース４に固設されることにより、ロータ６に発生する駆動力の反力を受けるようにされている。   The stator 8 has a cylindrical shape and is installed so that the inner peripheral surface of the stator 8 and the outer peripheral surface of the rotor 6 have a minute gap. Further, the stator 8 is configured to receive a reaction force of the driving force generated in the rotor 6 by fixing the outer peripheral portion to the second case 4.

減速機１４は、第２ケース４に固設されたインターナルギア２４、出力軸１５を兼ねるキャリア、ロータ軸７の先端部に形成された上記サンギア１８、並びに、インターナルギア２４およびサンギア１８と噛合いインターナルギア２４内で自転しながら公転するピニオンギア２６からなる。このような構成により減速機１４は、ロータ軸７に設けられたサンギア１８を介して伝達されたロータ６の回転を、適切な回転数まで減速して出力軸１５から出力することができる。   The reduction gear 14 meshes with an internal gear 24 fixed to the second case 4, a carrier that also serves as the output shaft 15, the sun gear 18 formed at the tip of the rotor shaft 7, and the internal gear 24 and the sun gear 18. It consists of a pinion gear 26 that revolves while rotating within the internal gear 24. With such a configuration, the speed reducer 14 can reduce the rotation of the rotor 6 transmitted through the sun gear 18 provided on the rotor shaft 7 to an appropriate rotational speed and output it from the output shaft 15.

第１オイル貯留部１０は、ケース２内の下部に設けられている。そして、その第１オイル貯留部１０には、ロータ６の一部が浸漬するレベルまでオイル９が貯留されている。   The first oil reservoir 10 is provided in the lower part in the case 2. And the oil 9 is stored in the 1st oil storage part 10 to the level which a part of rotor 6 immerses.

第２オイル貯留部１１は、出力軸１５側とは反対側のロータ軸７の一端部に取り付けられたオイルガイド２７と、第１ケース３の壁面とで形成されて、第１オイル貯留部１０の上方に設けられている。   The second oil reservoir 11 is formed by an oil guide 27 attached to one end of the rotor shaft 7 on the side opposite to the output shaft 15 side, and the wall surface of the first case 3, and the first oil reservoir 10 It is provided above.

第３オイル貯留部１２は、図２（ａ），（ｂ）に示すように、回転検出器２３の固定子２１の取り付け面（固定子２１の外周を保持する嵌め合い部３ｂおよび固定子２１の側面を保持する側面保持部３ｃ）の一部をロータ軸７の軸線方向内方に削り取って形成されて、第２オイル貯留部１１の上方に設けられている。換言すれば、第３オイル貯留部１２は、第１ケース３の壁面とドーナツ型の固定子２１の側壁の一部とにより形成されている。また、固定子２１用の取り付け面３ｂ、３ｃの削り取られた部分の両側には、オイルを収集する目的でガイドリブ２８が形成されている。そして、第３オイル貯留部１２と第２オイル貯留部１１との間は、連通油路２９にて連通され、第３オイル貯留部１２から第２オイル貯留部１１へとオイルが供給可能にされている。なお、第３オイル貯留部１２の容積は第２オイル貯留部１１の容積より大きくされている。   As shown in FIGS. 2A and 2B, the third oil storage unit 12 includes an attachment surface of the stator 21 of the rotation detector 23 (the fitting portion 3 b that holds the outer periphery of the stator 21 and the stator 21. A part of the side surface holding portion 3 c) that holds the side surfaces of the rotor shaft 7 is formed by scraping inward in the axial direction of the rotor shaft 7, and is provided above the second oil storage portion 11. In other words, the third oil reservoir 12 is formed by the wall surface of the first case 3 and a part of the side wall of the donut-shaped stator 21. In addition, guide ribs 28 are formed on both sides of the scraped portions of the mounting surfaces 3b and 3c for the stator 21 for the purpose of collecting oil. The third oil reservoir 12 and the second oil reservoir 11 are communicated with each other through a communication oil passage 29 so that oil can be supplied from the third oil reservoir 12 to the second oil reservoir 11. ing. Note that the volume of the third oil reservoir 12 is larger than the volume of the second oil reservoir 11.

このような構成にすることにより、本発明の第１実施例の電動式駆動装置１では、マグネットコイル１３に通電することによりロータ６を回転させると、その回転により第１オイル貯留部１０に溜められたオイル９がロータ６によりケース２内の上部に掻き上げられる。そしてロータ６の回転により第１ケース３側へ飛散したオイル、並びに、ロータ６およびステータ８の第１ケース３側の内周面から滴下したオイルの一部は、一時的に第３オイル貯留部１２に収集されることとなる。ここで、第３オイル貯留部１２は、下面および三方の側面を第１ケース３の壁面で、残る一面を回転検出器２３の固定子２１の側面で形成されているので、確実にオイルを収集することができる。そして、第３オイル貯留部１２に収集されたオイル９は、連通油路２９を通ってオイルガイド２７および第１ケース３の壁面で形成される第２オイル貯留部１１へと供給される。第２オイル貯留部１１に貯留されたオイル９は、供給穴３０を通ってロータ軸７に設けられた各部潤滑油路２０へと流入し、ケース２内の潤滑および冷却が必要な各部へと供給される。   With this configuration, in the electric drive device 1 according to the first embodiment of the present invention, when the rotor 6 is rotated by energizing the magnet coil 13, the rotation is stored in the first oil reservoir 10 by the rotation. The oil 9 is scraped up by the rotor 6 to the upper part in the case 2. The oil splashed to the first case 3 side by the rotation of the rotor 6 and a part of the oil dripped from the inner peripheral surface of the rotor 6 and the stator 8 on the first case 3 side are temporarily stored in the third oil reservoir. 12 will be collected. Here, the third oil reservoir 12 is formed with the lower surface and the three side surfaces being the wall surface of the first case 3, and the remaining one surface is the side surface of the stator 21 of the rotation detector 23. can do. The oil 9 collected in the third oil reservoir 12 is supplied to the second oil reservoir 11 formed by the oil guide 27 and the wall surface of the first case 3 through the communication oil passage 29. The oil 9 stored in the second oil storage portion 11 flows into the lubricating oil passages 20 provided in the rotor shaft 7 through the supply holes 30, and into the portions in the case 2 that require lubrication and cooling. Supplied.

従って、この電動式駆動装置１によれば、ロータ軸受ボス３ａに切り欠きを設ける必要が無いのでロータ軸支持剛性を確保できるだけでなく、連通油路２９に対して十分に大きなオイル回収面積を有する第３オイル貯留部１２を設けることにより第２オイル貯留部１１への回収油量を増大させることができる。また、第３オイル貯留部１２に一時的にオイルを溜めておくことにより、ロータ６の回転数変動等により掻き上げオイル量にムラが生じても、第３オイル貯留部１２がバッファとなって安定的にオイルを第２オイル貯留部１１に供給することができる。更に、第３オイル貯留部１２の容積が第２オイル貯留部１１の容積より大きいので、第２オイル貯留部１１へのオイルの供給を確実かつ安定的に行うことができる。   Therefore, according to the electric drive device 1, since it is not necessary to provide a notch in the rotor bearing boss 3 a, not only can the rotor shaft support rigidity be ensured, but the oil recovery area 29 is sufficiently large. By providing the third oil reservoir 12, the amount of oil recovered in the second oil reservoir 11 can be increased. In addition, by temporarily storing oil in the third oil storage unit 12, even if the amount of oil scraped up due to fluctuations in the rotational speed of the rotor 6 is uneven, the third oil storage unit 12 serves as a buffer. Oil can be stably supplied to the second oil reservoir 11. Furthermore, since the volume of the 3rd oil storage part 12 is larger than the volume of the 2nd oil storage part 11, the supply of the oil to the 2nd oil storage part 11 can be performed reliably and stably.

また、第３オイル貯留部１２を構成する側壁の一部に回転検出器２３の固定子２１の側面を利用しているので、第３オイル貯留部１２の側壁を別途設ける必要が無く、構成部品点数を増やすことなく第３オイル貯留部１２からのオイル零れ量を大幅に低減できる。また、追加の部品および空間を必要とせずに比較的大面積のオイル収集面を確保することが可能となるので、ロータ６の回転数が低い場合であってもオイルを確実に収集することができる。   Moreover, since the side surface of the stator 21 of the rotation detector 23 is used as a part of the side wall that constitutes the third oil storage part 12, there is no need to separately provide the side wall of the third oil storage part 12, and the component parts The oil spill amount from the third oil reservoir 12 can be greatly reduced without increasing the score. In addition, since a relatively large oil collecting surface can be secured without requiring additional parts and space, oil can be reliably collected even when the rotational speed of the rotor 6 is low. it can.

更に、回転検出器２３の固定子２１用の取り付け面３ｂ、３ｃの一部を切り欠いて第３オイル貯留部１２が形成されているので、型割が可能な通常の鋳物部品のケース２に回転検出器２３の固定子２１の側面を組み合わせるだけで第３オイル貯留部１２を形成でき、部品点数削減に加えて製造コストの低減を図ることができる。   Further, since the third oil storage portion 12 is formed by cutting out part of the attachment surfaces 3b, 3c for the stator 21 of the rotation detector 23, the case 2 of a normal casting part that can be divided into molds is formed. The third oil storage portion 12 can be formed only by combining the side surfaces of the stator 21 of the rotation detector 23, and the manufacturing cost can be reduced in addition to the reduction in the number of components.

図３は、本発明の第２実施例の電動式駆動装置３１を示す。本実施例の電動式駆動装置３１は、図３および図４（ａ），（ｂ）に示すように、回転検出器２３の固定子３２用の取り付け面３ｂ、３ｃをロータ軸７の軸線方向内方に一部削り取るとともに、その切り欠きされた部分の両側の接触面３３を上方に延長した上でガイドリブ２８が形成されている点、および回転検出器２３の固定子３２の形状が異なる点で第１実施例と異なるが、他の点では第１実施例と同様に構成されている。   FIG. 3 shows an electric drive device 31 according to a second embodiment of the present invention. As shown in FIG. 3 and FIGS. 4A and 4B, the electric drive device 31 of the present embodiment has the mounting surfaces 3 b and 3 c for the stator 32 of the rotation detector 23 in the axial direction of the rotor shaft 7. The inner ribs are partially cut away, and the contact ribs 33 on both sides of the cut-out portions are extended upward to form guide ribs 28, and the shape of the stator 32 of the rotation detector 23 is different. However, although different from the first embodiment, it is configured in the same manner as the first embodiment in other respects.

ここで、図４（ａ），（ｂ）に示すように、本実施例における回転検出器２３の固定子３２の形状は、ドーナツ形状の上部に扇形状の突出部３２ａを重ね合わせた形状をしている。そして、その扇形状の突出部３２ａは、その両側の傾斜部の傾きが切り欠き部の両側の延長された接触面３３に対応した角度とされている。   Here, as shown in FIGS. 4A and 4B, the shape of the stator 32 of the rotation detector 23 in the present embodiment is a shape in which a fan-shaped protrusion 32a is superimposed on an upper portion of a donut shape. is doing. In the fan-shaped protrusion 32a, the inclination of the inclined portions on both sides is an angle corresponding to the extended contact surfaces 33 on both sides of the cutout portion.

このような構成にすることにより、本発明の第２実施例の電動式駆動装置３１では、先の第１実施例において記載したのと同様の効果に加え、第３オイル貯留部１２の深さを突出部３２ａによって大きくすることができ、第３オイル貯留部１２のオイル貯留量を大きくすることができる。更に、第３オイル貯留部１２の深さ方向への寸法が大きいので、例えば自動車等の非定置型伝動装置に本実施例の電動式駆動装置３１を適用した場合であっても、装置の傾斜によって第３オイル貯留部１２からオイルが全て零れてしまうという不具合を防止することができる。   By adopting such a configuration, in the electric drive device 31 of the second embodiment of the present invention, in addition to the same effects as described in the first embodiment, the depth of the third oil storage portion 12 is obtained. Can be increased by the protrusion 32a, and the amount of oil stored in the third oil storage unit 12 can be increased. Furthermore, since the dimension in the depth direction of the third oil reservoir 12 is large, even if the electric drive device 31 of the present embodiment is applied to a non-stationary transmission device such as an automobile, for example, the inclination of the device Therefore, it is possible to prevent the problem that all the oil is spilled from the third oil storage unit 12.

図５は、本発明の第３実施例の電動式駆動装置４１を示す。本実施例の電動式駆動装置４１は、図５および図６に示すように、ロータ軸７の内部に設けられた各部潤滑油路２０を境に第２オイル貯留部１１を、各部潤滑油路２０より上側の上部第２オイル貯留部４２と、各部潤滑油路２０の下側の下部第２オイル貯留部４３とに分割し、その下部第２オイル貯留部４３でオイルガイド２７と第１ケース３の壁面との間の距離を短くすることにより下部第２オイル貯留部４３の容積を減少させている点において先の第１実施例と異なり、他の点では先の第１実施例と同様に構成されている。   FIG. 5 shows an electric drive device 41 according to a third embodiment of the present invention. As shown in FIG. 5 and FIG. 6, the electric drive device 41 of the present embodiment is configured so that the second oil storage portion 11 is connected to each part lubricating oil path 20 with each part lubricating oil path 20 provided inside the rotor shaft 7 as a boundary. The upper second oil reservoir 42 above 20 and the lower second oil reservoir 43 below the lubricating oil passage 20 are divided into the oil guide 27 and the first case at the lower second oil reservoir 43. 3 is different from the first embodiment in that the volume of the lower second oil reservoir 43 is reduced by shortening the distance between the wall surface 3 and the first wall in other respects. It is configured.

このような構成にすることにより、本発明の第３実施例の電動式駆動装置４１では、先の第１実施例において記載したのと同様の効果に加え、下部第２オイル貯留部４３の容積が小さく少量のオイルで下部第２オイル貯留部４３が満たされるので、電動式駆動装置４１の始動時等に第３オイル貯留部１２から第２オイル貯留部１１へと供給されるオイル量が少なくても比較的短時間で下部第２オイル貯留部４３を満たすことができる。これにより、各部潤滑油路２０にオイルが供給されるまでの時間を短縮できると共に、潤滑および冷却を必要としている部分が無潤滑で回転し続ける等の不具合を解消することができる。このような構成は、例えば車両用ユニットとして使用された場合の渋滞路走行時等に特に効果がある。   With this configuration, in the electric drive device 41 according to the third embodiment of the present invention, in addition to the same effects as described in the first embodiment, the volume of the lower second oil storage portion 43 is increased. Since the lower second oil reservoir 43 is filled with a small amount of oil, the amount of oil supplied from the third oil reservoir 12 to the second oil reservoir 11 when starting the electric drive device 41 is small. However, the lower second oil reservoir 43 can be filled in a relatively short time. As a result, the time until the oil is supplied to the respective lubricating oil passages 20 can be shortened, and problems such as the part requiring lubrication and cooling continuing to rotate without lubrication can be solved. Such a configuration is particularly effective when traveling on a congested road when used as a vehicle unit, for example.

図７は、本発明の第４実施例の電動式駆動装置５１を示す。本実施例の電動式駆動装置５１は、図７および図８に示すように、ロータ６の半径方向内方（内周側）に空間部５２を設け、該空間部５２内に回転検出器２３および第３オイル貯留部１２の一部を配置している点、およびロータ軸７の軸線方向第１ケース３側へとロータ６から外れた位置に別体の第４オイル貯留部５３を設置すると共にその第４オイル貯留部５３にオイル滴下穴５４を設けて第３オイル貯留部１２上、または連通油路２０上へと第４オイル貯留部５３からオイル９を滴下供給可能としている点において先の第３実施例と異なり、他の点において先の第３実施例と同様に構成されている。   FIG. 7 shows an electric drive device 51 according to a fourth embodiment of the present invention. As shown in FIGS. 7 and 8, the electric drive device 51 of the present embodiment is provided with a space 52 on the inner side (inner peripheral side) in the radial direction of the rotor 6, and the rotation detector 23 in the space 52. In addition, a separate fourth oil reservoir 53 is installed at a position where a part of the third oil reservoir 12 is disposed and at a position away from the rotor 6 toward the first case 3 in the axial direction of the rotor shaft 7. In addition, an oil dripping hole 54 is provided in the fourth oil reservoir 53 so that the oil 9 can be supplied dropwise from the fourth oil reservoir 53 onto the third oil reservoir 12 or the communication oil passage 20. Unlike the third embodiment, the second embodiment is configured in the same manner as the third embodiment.

このような構成にすることにより、本発明の第４実施例の電動式駆動装置５１では、先の第３実施例において記載したのと同様の効果に加え、ロータ６の内周側に設けた空間部５２内に回転検出器２３および第３オイル貯留部１２の一部を配置したので、ロータ６の回転が低回転時であってもロータ６の内周部およびステータ８内周部から滴下するオイルを確実に第３オイル貯留部１２上に滴下させることができる。また、ステータ８の内径まで拡大することにより回収面の面積を大きくすることができる第４オイル貯留部５３と、ロータ６の回転が低回転の時であってもオイルの回収効率を高めることができる第３オイル貯留部１２とを組み合わせることにより、ロータ６の回転域のほぼ全域にわたってオイル回収効率を向上でき、それによって第１オイル貯留部１０のオイル量（オイルレベル）が低くても装置内を十分に潤滑可能になることから、第１オイル貯留部１０のオイルレベルを低下させることができ、ロータ回転の撹拌抵抗を大幅に低減することができる。   By adopting such a configuration, the electric drive device 51 of the fourth embodiment of the present invention is provided on the inner peripheral side of the rotor 6 in addition to the same effects as described in the third embodiment. Since the rotation detector 23 and a part of the third oil storage unit 12 are disposed in the space 52, even when the rotation of the rotor 6 is low, it drops from the inner periphery of the rotor 6 and the inner periphery of the stator 8. The oil to be dropped can be reliably dropped onto the third oil reservoir 12. In addition, the fourth oil reservoir 53 that can increase the area of the recovery surface by expanding to the inner diameter of the stator 8 and the oil recovery efficiency can be improved even when the rotation of the rotor 6 is low. By combining with the third oil reservoir 12 that can be produced, the oil recovery efficiency can be improved over almost the entire rotation range of the rotor 6, thereby allowing the inside of the apparatus even if the oil amount (oil level) of the first oil reservoir 10 is low. Can be sufficiently lubricated, the oil level of the first oil reservoir 10 can be reduced, and the stirring resistance of the rotor rotation can be greatly reduced.

なお、上記の実施例以外にも、本発明の電動式駆動装置は、更に複数のオイル貯留部を設けても良く、また、第２ケース側に貯留部を設けて各部潤滑油路へとオイルを供給するようにしても良い。   In addition to the above-described embodiments, the electric drive device of the present invention may further include a plurality of oil storage portions, and a storage portion may be provided on the second case side to supply oil to each lubricating oil passage. May be supplied.

かくして、本発明の電動式駆動装置によれば、第２オイル貯留部よりケースの上部側であってロータ軸の軸受ボス外周縁部に、第２オイル貯留部と連通油路を介して連通された第３オイル貯留部を設けているので、ロータ軸受ボスに開口部となる切り欠きを設ける必要が無く、ロータ軸の支持剛性を確保することができる。また、連通油路が上述した従来技術の開口部に相当するので、第２オイル貯留部に開口部を設ける必要がなく、シャフトの軸線方向に回収したオイルが零れることを防止することができる。更に、連通油路に対して十分に大きな面積を持つ第３オイル貯留部の壁部をオイル回収面とすることが出来るので、第２オイル貯留部への回収油量を増大させることができる。その上、第３オイル貯留部にも回収したオイルを一時的に貯留することが可能であるので、ロータの回転数変動等により掻き上げオイル量にムラが生じても第３オイル貯留部がバッファの役割を果たして回収したオイルを第２オイル貯留部に安定的に供給することができる。   Thus, according to the electric drive device of the present invention, the second oil reservoir is communicated with the outer peripheral edge of the bearing boss of the rotor shaft via the second oil reservoir via the communication oil passage. In addition, since the third oil storage portion is provided, it is not necessary to provide a notch serving as an opening in the rotor bearing boss, and the support rigidity of the rotor shaft can be ensured. In addition, since the communication oil passage corresponds to the above-described opening of the prior art, it is not necessary to provide an opening in the second oil reservoir, and oil collected in the axial direction of the shaft can be prevented from spilling. Furthermore, since the wall portion of the third oil storage portion having a sufficiently large area with respect to the communication oil passage can be used as the oil recovery surface, the amount of oil recovered in the second oil storage portion can be increased. In addition, since the recovered oil can also be temporarily stored in the third oil storage section, the third oil storage section is buffered even if unevenness occurs in the amount of oil scraped up due to fluctuations in the rotational speed of the rotor. The oil recovered by fulfilling the role of can be stably supplied to the second oil reservoir.

なお、本発明の電動式駆動装置においては、ケースに、ロータの回転を検出する回転検出器が更に収納されており、回転検出器は、固定子と回転子とを備え、第３オイル貯留部の一部が、固定子の側面の一部で形成されていても良い。このような構成とすれば、構成部品点数を増やすことなく第３オイル貯留部の側壁を塞ぐことができ、第３オイル貯留部からのオイル零れ量を大幅に低減できる。また、追加の部品および空間を必要とせずに比較的大面積のオイル収集面を確保することが可能となり、ロータの回転数が低い場合でもロータが掻き上げたオイルを確実に第２オイル貯留部へ供給することが可能となる。   In the electric drive device of the present invention, the case further includes a rotation detector for detecting the rotation of the rotor, and the rotation detector includes a stator and a rotor, and includes a third oil storage unit. May be formed by a part of the side surface of the stator. With such a configuration, the side wall of the third oil reservoir can be closed without increasing the number of components, and the amount of oil spilling from the third oil reservoir can be greatly reduced. In addition, it is possible to secure a relatively large oil collecting surface without requiring additional parts and space, and the second oil storage section can reliably ensure that the oil scooped up by the rotor is low even when the rotational speed of the rotor is low. It becomes possible to supply to.

更に、上述のように第３オイル貯留部の一部が固定子の側面の一部で形成されている、本発明の電動式駆動装置においては、ケースの一部に、固定子の外周を保持する嵌め合い部と、固定子の側面を保持する側面保持部とが形成され、第３オイル収納部が、嵌め合い部の一部および側面保持部の一部の所定範囲に、軸受ボスの外周縁部に内周方向へ切り欠き凹部を設けることにより形成されていても良い。このような構成とすれば、通常の型割が可能な鋳物部品形状に回転検出器の側面を組み合わせるだけで第３オイル貯留部を形成できるので、部品点数を削減すると共に、製造コストの低減を図ることができる。   Furthermore, in the electric drive device of the present invention in which a part of the third oil reservoir is formed as a part of the side surface of the stator as described above, the outer periphery of the stator is held in a part of the case. And a side holding part that holds the side face of the stator are formed, and the third oil storage part is located within a predetermined range of a part of the fitting part and a part of the side holding part. You may form by providing a notch recessed part in an inner peripheral direction in a peripheral part. With such a configuration, the third oil reservoir can be formed simply by combining the side surface of the rotation detector with a cast part shape that can be divided into ordinary parts, thereby reducing the number of parts and reducing the manufacturing cost. Can be planned.

更に、上述のように第３オイル貯留部の一部が固定子の側面の一部で形成されている、本発明の電動式駆動装置においては、ケースの一部に、固定子の外周を保持する嵌め合い部と、固定子の側面を保持する側面保持部とが形成され、第３オイル収納部が、嵌め合い部の一部および側面保持部の一部の所定範囲に、軸受ボスの外周縁部に内周方向へ切り欠き凹部を設けると共に、切り欠き凹部に合わせて固定子の外周の一部をロータ軸の半径方向外方へ向けて突出させてガイドリブを設けることにより形成されていても良い。このような構成とすれば、第３オイル貯留部の深さを大きくすることができ、第３オイル貯留部のオイル貯留量を大きくすることができる。更に、第３オイル貯留部の深さ方向への寸法が大きいので、電動式駆動装置が傾斜した場合にも第３オイル貯留部へのオイル捕捉が確実になり、各部へのオイル供給が安定的に行えるので、非定置式の電動式駆動装置として利用することもできる。   Furthermore, in the electric drive device of the present invention in which a part of the third oil reservoir is formed as a part of the side surface of the stator as described above, the outer periphery of the stator is held in a part of the case. And a side holding part that holds the side face of the stator are formed, and the third oil storage part is located within a predetermined range of a part of the fitting part and a part of the side holding part. It is formed by providing a notch recess in the inner peripheral direction at the peripheral edge and providing a guide rib by projecting a part of the outer periphery of the stator outward in the radial direction of the rotor shaft in accordance with the notch recess. Also good. With such a configuration, the depth of the third oil reservoir can be increased, and the amount of oil stored in the third oil reservoir can be increased. Furthermore, since the dimension in the depth direction of the third oil reservoir is large, oil capture to the third oil reservoir is ensured even when the electric drive device is inclined, and the oil supply to each part is stable. Therefore, it can be used as a non-stationary electric drive device.

更に、本発明の電動式駆動装置においては、ロータの内周側に空間を設け、その空間内に、回転検出器および第３オイル貯留部の一部をロータ軸の軸線方向へ突出させて配置しても良い。このような構成とすれば、ロータの掻き上げたオイルが第３オイル貯留部へと滴下する確立を高めることができ、ロータの低回転時においても第３オイル貯留部へのオイル回収効率を高めることができる。   Furthermore, in the electric drive device according to the present invention, a space is provided on the inner peripheral side of the rotor, and a part of the rotation detector and the third oil reservoir is protruded in the axial direction of the rotor shaft in the space. You may do it. With such a configuration, it is possible to increase the probability that the oil scooped up by the rotor will drip into the third oil reservoir, and increase the oil recovery efficiency to the third oil reservoir even when the rotor rotates at a low speed. be able to.

更に、本発明の電動式駆動装置においては、第２オイル貯留部が、ロータ軸の水平中心線より下の部分の体積より、ロータ軸の水平中心線より上の部分の体積が大きくなるように構成されていても良い。このような構成とすれば、ロータ軸の水平中心線より下側の第２オイル貯留部が少量のオイルで満たされるので、潤滑油路にオイルが供給されるまでの時間を短縮することが出来ると共に、潤滑および冷却を必要としている部分が無潤滑で回転し続ける等の不具合を解消することができる。   Furthermore, in the electric drive device according to the present invention, the volume of the second oil reservoir is larger than the volume of the portion below the horizontal center line of the rotor shaft, and the volume of the portion above the horizontal center line of the rotor shaft. It may be configured. With such a configuration, since the second oil reservoir below the horizontal center line of the rotor shaft is filled with a small amount of oil, the time until the oil is supplied to the lubricating oil passage can be shortened. At the same time, it is possible to eliminate problems such as that the portion requiring lubrication and cooling keeps rotating without lubrication.

更に、本発明の電動式駆動装置においては、第３オイル貯留部の体積を、第２オイル貯留部の体積より大きくしても良い。このような構成とすれば、第３オイル貯留部から第２オイル貯留部へのオイル供給を確実かつ安定的に行うことができる。   Furthermore, in the electric drive device of the present invention, the volume of the third oil reservoir may be larger than the volume of the second oil reservoir. With such a configuration, the oil supply from the third oil reservoir to the second oil reservoir can be reliably and stably performed.

そして、本発明の電動式駆動装置においては、第４オイル貯留部を前記ケース内に更に具え、その第４オイル貯留部は、ロータの軸線方向外側であって第３オイル貯留部の上方に設けられ、そして第４オイル貯留部から第３オイル貯留部または連通油路へとオイルを供給するオイル供給手段を具えても良い。このような構成とすれば、オイル回収効率を向上することができ、第１オイル貯留部のオイル量（オイルレベル）が低くても装置を十分に潤滑可能となるから、第１オイル貯留部のオイルレベルを低下させてロータ回転の撹拌抵抗が低い状態で運転することができる。   In the electric drive device according to the present invention, a fourth oil reservoir is further provided in the case, and the fourth oil reservoir is provided outside the rotor in the axial direction and above the third oil reservoir. And oil supply means for supplying oil from the fourth oil reservoir to the third oil reservoir or the communication oil passage. With such a configuration, the oil recovery efficiency can be improved, and the device can be sufficiently lubricated even if the oil amount (oil level) of the first oil reservoir is low. It is possible to operate in a state where the oil level is lowered and the stirring resistance of the rotor rotation is low.

本発明の第１実施例の電動式駆動装置の断面を示す断面図である。It is sectional drawing which shows the cross section of the electric drive device of 1st Example of this invention. 図２（ａ）は第１実施例の電動式駆動装置の第２オイル貯留部および第３オイル貯留部の構成を説明する説明図であり、図２（ｂ）は第１実施例の電動式駆動装置の固定子の形状を示す正面図である。FIG. 2A is an explanatory view for explaining the configuration of the second oil storage portion and the third oil storage portion of the electric drive device of the first embodiment, and FIG. 2B is the electric type of the first embodiment. It is a front view which shows the shape of the stator of a drive device. 本発明の第２実施例の電動式駆動装置の断面を示す断面図である。It is sectional drawing which shows the cross section of the electric drive device of 2nd Example of this invention. 図４（ａ）は第２実施例の電動式駆動装置の第２オイル貯留部および第３オイル貯留部の構成を説明する説明図であり、図４（ｂ）は第２実施例の電動式駆動装置の固定子の形状を示す正面図である。FIG. 4A is an explanatory diagram for explaining the configuration of the second oil storage section and the third oil storage section of the electric drive unit of the second embodiment, and FIG. 4B is the electric drive system of the second embodiment. It is a front view which shows the shape of the stator of a drive device. 本発明の第３実施例の電動式駆動装置の断面を示す断面図である。It is sectional drawing which shows the cross section of the electric drive device of 3rd Example of this invention. 第３実施例の電動式駆動装置の第２オイル貯留部および第３オイル貯留部の構成を説明する説明図である。It is explanatory drawing explaining the structure of the 2nd oil storage part of the electric drive device of 3rd Example, and a 3rd oil storage part. 本発明の第４実施例の電動式駆動装置の断面を示す断面図である。It is sectional drawing which shows the cross section of the electric drive device of 4th Example of this invention. 第４実施例の電動式駆動装置の第２オイル貯留部、第３オイル貯留部および第４オイル貯留部の構成を説明する説明図である。It is explanatory drawing explaining the structure of the 2nd oil storage part of the electric drive device of 4th Example, a 3rd oil storage part, and a 4th oil storage part.

符号の説明Explanation of symbols

１ 電動式駆動装置
２ ケース
３ 第１ケース
４ 第２ケース
５ ボルト
６ ロータ
７ ロータ軸
８ ステータ
９ オイル
１０ 第１オイル貯留部
１１ 第２オイル貯留部
１２ 第３オイル貯留部
１３ マグネットコイル
１４ 減速機
１５ 出力軸（キャリア）
１６ 第１ロータ軸受
１７ 第２ロータ軸受
１８ サンギア
１９ 結合部
２０ 各部潤滑油路
２１ 固定子
２２ 回転子
２３ 回転検出器
２４ インターナルギア
２５ 噛合いインターナルギア
２６ ピニオンギア
２７ オイルガイド
２８ ガイドリブ
２９ 連通油路
３０ 供給穴
３１ 電動式駆動装置
３２ 固定子
３３ 接触面
４１ 電動式駆動装置
４２ 上部第２オイル貯留部
４３ 下部第２オイル貯留部
５１ 電動式駆動装置
５２ 空間部
５３ 第４オイル貯留部
５４ オイル滴下穴 DESCRIPTION OF SYMBOLS 1 Electric drive device 2 Case 3 1st case 4 2nd case 5 Bolt 6 Rotor 7 Rotor shaft 8 Stator 9 Oil 10 1st oil storage part 11 2nd oil storage part 12 3rd oil storage part 13 Magnet coil 14 Reduction gear 15 Output shaft (carrier)
16 1st rotor bearing 17 2nd rotor bearing 18 Sun gear 19 Coupling part 20 Each part lubricating oil path 21 Stator 22 Rotor 23 Rotation detector 24 Internal gear 25 Engagement internal gear 26 Pinion gear 27 Oil guide 28 Guide rib 29 Communication oil path 30 Supply hole 31 Electric drive device 32 Stator 33 Contact surface 41 Electric drive device 42 Upper second oil reservoir 43 Lower second oil reservoir 51 Electric drive device 52 Space 53 Fourth oil reservoir 54 Oil dripping hole

Claims (7)

ロータと、そのロータを支持するロータ軸と、ステータとをケースに収納して具えると共に、そのケース内に第１オイル貯留部と、第２オイル貯留部とを具え、
前記ロータ軸は、前記ケースに設けられた軸受ボスを用いて回転可能に支持されると共に、前記オイルを潤滑箇所および冷却箇所へと供給する供給油路を有し、
前記第１オイル貯留部は、前記ケースの下部に設けられ、
前記第２オイル貯留部は、少なくとも一部が前記ロータ軸の一端部と前記ケースとの間に位置して前記供給油路と連通しており、
前記ロータの回転により前記第１オイル貯留部に貯留されたオイルを掻き上げて、掻き上げられたオイルの少なくとも一部を前記第２オイル貯留部および前記供給油路を介して前記潤滑箇所および前記冷却箇所へと供給する電動式駆動装置であって、
前記第２オイル貯留部よりケースの上部側であって前記ロータ軸の前記軸受ボスの外周縁部に第３オイル貯留部が設けられ、その第３オイル貯留部が、前記第２オイル貯留部と連通油路を介して連通されているとともに、
前記ケースには、前記ロータの回転を検出する回転検出器が更に収納されており、
前記回転検出器は、固定子と回転子とを備え、
前記第３オイル貯留部の一部が、前記固定子の側面の一部で形成される、電動式駆動装置。 A rotor, a rotor shaft that supports the rotor, and a stator are housed and provided in a case, and a first oil reservoir and a second oil reservoir are provided in the case.
The rotor shaft is rotatably supported using a bearing boss provided in the case, and has a supply oil passage that supplies the oil to a lubrication point and a cooling point.
The first oil reservoir is provided at a lower portion of the case,
The second oil reservoir is located at least partially between one end of the rotor shaft and the case and communicates with the supply oil passage;
The oil stored in the first oil storage unit is scraped up by the rotation of the rotor, and at least a part of the scraped oil is removed from the lubrication point and the oil via the second oil storage unit and the supply oil passage. An electric drive device for supplying to a cooling point,
A third oil reservoir is provided on the outer peripheral edge of the bearing boss of the rotor shaft on the upper side of the case with respect to the second oil reservoir, and the third oil reservoir is connected to the second oil reservoir. In addition to being communicated through a communication oil passage ,
The case further houses a rotation detector for detecting the rotation of the rotor,
The rotation detector includes a stator and a rotor,
The electric drive device in which a part of the third oil storage part is formed by a part of a side surface of the stator . 請求項１に記載の電動式駆動装置において、
前記ケースの一部には、前記固定子の外周を保持する嵌め合い部と、前記固定子の側面を保持する側面保持部とが形成され、
前記第３オイル収納部が、前記嵌め合い部の一部および前記側面保持部の一部の所定範囲に、前記軸受ボスの外周縁部に内周方向へ切り欠き凹部を設けることにより形成される、電動式駆動装置。 The electric drive device according to claim 1 ,
In a part of the case, a fitting portion that holds an outer periphery of the stator and a side surface holding portion that holds a side surface of the stator are formed.
The third oil storage part is formed by providing a notch in the outer peripheral edge part of the bearing boss in the inner peripheral direction in a predetermined range of a part of the fitting part and a part of the side surface holding part. Electric drive device. 請求項１に記載の電動式駆動装置において、
前記ケースの一部には、前記固定子の外周を保持する嵌め合い部と、前記固定子の側面を保持する側面保持部とが形成され、
前記第３オイル貯留部が、前記嵌め合い部の一部および前記側面保持部の一部の所定範囲に、前記軸受ボスの外周縁部に内周方向へ切り欠き凹部を設けると共に、前記切り欠き凹部に合わせて前記固定子の外周の一部を前記ロータ軸の半径方向外方へ向けて突出させてガイドリブを設けることにより形成される、電動式駆動装置。 The electric drive device according to claim 1 ,
In a part of the case, a fitting portion that holds an outer periphery of the stator and a side surface holding portion that holds a side surface of the stator are formed.
The third oil reservoir is provided with a notch in the outer peripheral edge of the bearing boss in a predetermined range of a part of the fitting part and a part of the side surface holding part, and the notch An electric drive device formed by providing a guide rib by projecting a part of the outer periphery of the stator toward the radially outward direction of the rotor shaft in accordance with the recess. 請求項１に記載の電動式駆動装置において、
前記ロータの内周側に空間を設け、
前記空間内に、前記回転検出器および前記第３オイル貯留部の一部を前記ロータ軸の軸線方向へ突出させて配置した、電動式駆動装置。 The electric drive device according to claim 1 ,
A space is provided on the inner peripheral side of the rotor,
An electric drive device in which the rotation detector and a part of the third oil storage portion are arranged to protrude in the axial direction of the rotor shaft in the space. 請求項１に記載の電動式駆動装置において、
前記第２オイル貯留部が、前記ロータ軸の水平中心線より下の部分の体積より、前記ロータ軸の水平中心線より上の部分の体積が大きくなるように構成されている、電動式駆動装置。 The electric drive device according to claim 1,
The electric drive device in which the second oil reservoir is configured such that the volume of the portion above the horizontal center line of the rotor shaft is larger than the volume of the portion below the horizontal center line of the rotor shaft. . 請求項１に記載の電動式駆動装置において、
前記第３オイル貯留部の体積が、前記第２オイル貯留部の体積より大きい、電動式駆動装置。 The electric drive device according to claim 1,
The electric drive device in which the volume of the third oil reservoir is larger than the volume of the second oil reservoir. 請求項１または請求項２に記載の電動式駆動装置において、
第４オイル貯留部を前記ケース内に更に具え、
前記第４オイル貯留部は、前記ロータの軸線方向外側であって前記第３オイル貯留部の上方に設けられ、そして
前記第４オイル貯留部から前記第３オイル貯留部または前記連通油路へとオイルを供給するオイル供給手段を具える、電動式駆動装置。 In the electric drive device according to claim 1 or 2 ,
A fourth oil reservoir in the case;
The fourth oil reservoir is provided on the outer side in the axial direction of the rotor and above the third oil reservoir, and from the fourth oil reservoir to the third oil reservoir or the communication oil passage. An electric drive device comprising oil supply means for supplying oil.
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