JP2011133017A - Driving device - Google Patents

Driving device Download PDF

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JP2011133017A
JP2011133017A JP2009292365A JP2009292365A JP2011133017A JP 2011133017 A JP2011133017 A JP 2011133017A JP 2009292365 A JP2009292365 A JP 2009292365A JP 2009292365 A JP2009292365 A JP 2009292365A JP 2011133017 A JP2011133017 A JP 2011133017A
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region
communication hole
convex
drive device
filter member
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Keiichi Kanashige
慶一 金重
Hirotsugu Tanaka
寛嗣 田中
Masahiro Sakai
雅宏 酒井
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Toyota Motor Corp
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Toyota Motor Corp
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    • 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
    • Y02T10/62—Hybrid vehicles
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Hybrid Electric Vehicles (AREA)
  • General Details Of Gearings (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To further controls the invasion of foreign matters to an electric motor side from a gear mechanism side in a driving device in which a communication hole that makes both sides communicate with each other is formed in a section member that divides the region where the electric motor is disposed and that where the gear mechanism is disposed. <P>SOLUTION: In the communication hole 42 formed in the section member 40, a filter member 60 is attached that allows the movement of fluids, such as cooling oil and air, and limits the movement of the solid foreign matters, such as an iron rubbish, between the motor region Tm and the gear region Tg. As a result, the foreign matters, such as iron rubbish, in gear region Tg are further controlled to invade the motor region Tm. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

従来、この種の駆動装置としては、車両に搭載され、モータジェネレータとモータジェネレータからの動力を車輪側に伝達する自動変速機とを備えるものにおいて、モータジェネレータのロータに取り付けられた永久磁石に作動油が接触するようにオイル通路を形成するものが提案されている（例えば、特許文献１参照）。この装置では、オイル通路に流す作動油に鉄粉などの異物が含まれているときには、その異物を永久磁石によって吸着することができる。   Conventionally, this type of drive device is mounted on a vehicle and includes a motor generator and an automatic transmission that transmits power from the motor generator to the wheel side. The drive device operates on a permanent magnet attached to the rotor of the motor generator. There has been proposed one in which an oil passage is formed so that oil comes into contact (see, for example, Patent Document 1). In this apparatus, when foreign matter such as iron powder is contained in the hydraulic oil flowing through the oil passage, the foreign matter can be adsorbed by the permanent magnet.

特開２００５−２５７００９号公報JP 2005-257005 A

しかしながら、上述の駆動装置において、モータジェネレータ側と自動変速機などのギヤ側とを区分する部材に、両側を連通する連通孔が形成されている場合、ギヤ機構側の鉄くずなどの異物がモータジェネレータ側に進入するのを十分に制限できないことがある。   However, in the above-described drive device, if a member that separates the motor generator side and a gear side such as an automatic transmission is formed with a communication hole that communicates both sides, foreign matters such as iron scraps on the gear mechanism side are It may not be possible to sufficiently restrict entry into the generator.

本発明の駆動装置は、電動機が配置された領域とギヤ機構が配置された領域とを区分する区分部材に両側を連通する連通孔が形成されているものにおいて、ギヤ機構側から電動機側に異物が侵入するのをより制限することを主目的とする。   In the drive device according to the present invention, a communicating member that communicates both sides is formed in a partitioning member that divides a region where the motor is disposed and a region where the gear mechanism is disposed. The main purpose is to further limit the intrusion.

本発明の駆動装置は、上述の主目的を達成するために以下の手段を採った。   The drive device of the present invention employs the following means in order to achieve the main object described above.

本発明の駆動装置は、
動力を入出力可能な電動機と、該電動機の回転軸に接続されたギヤ機構と、を備え、前記電動機が配置された領域である電動機領域と前記ギヤ機構が配置された領域であるギヤ領域とを区分する区分部材に両領域を連通する連通孔が形成されてなる駆動装置であって、
前記連通孔には、前記電動機領域と前記ギヤ領域との間での流体の移動を許容すると共に固体の移動を制限するフィルタ部材が取り付けられてなる、
を備えることを要旨とする。 The drive device of the present invention is
An electric motor capable of inputting and outputting power; and a gear mechanism connected to a rotating shaft of the electric motor, and an electric motor region in which the electric motor is disposed and a gear region in which the gear mechanism is disposed A driving device in which a communicating hole that communicates both regions is formed in a sorting member that classifies
The communication hole is attached with a filter member that allows movement of fluid between the electric motor region and the gear region and restricts movement of the solid.
It is a summary to provide.

この本発明の駆動装置では、電動機が配置された領域である電動機領域とギヤ機構が配置された領域とを区分する区分部材に形成された両領域を連通する連通孔に、電動機領域とギヤ領域との間での流体の移動を許容すると共に固体の移動を制限するフィルタ部材を取り付ける。これにより、電動機領域と前記ギヤ領域との間で固体の異物が移動するのをより制限することができる。即ち、ギヤ領域内の鉄くずなどが電動機領域に進入するのをより制限することができる。   In the drive device according to the present invention, the motor region and the gear region are formed in the communication hole that communicates the two regions formed in the partitioning member that separates the motor region where the motor is disposed and the region where the gear mechanism is disposed. A filter member is attached that allows movement of fluid between the two and restricts movement of the solid. Thereby, it can restrict | limit more that a solid foreign material moves between an electric motor area | region and the said gear area | region. That is, it is possible to further restrict the iron scraps and the like in the gear region from entering the motor region.

こうした本発明の駆動装置において、前記連通孔は、内周面のうち前記ギヤ領域側の端部よりも前記電動機領域側に、全周に亘って凸部が形成されてなり、前記フィルタ部材は、前記連通孔の凸部に嵌合可能に形成されてなる、ものとすることもできる。こうすれば、連通孔には、ギヤ領域側から見て段差が形成されていることになるから、段差が形成されていないものに比して、フィルタ部材が連通孔に取り付けられているときに、連通孔の内周面とフィルタ部材との隙間を通ってギヤ領域から電動機領域に異物が進入するのをより制限することができる。この態様の本発明の駆動装置において、前記フィルタ部材は、平板部と、該平板部に略垂直に形成され外周側に前記連通孔の凸部の内径よりも大きい外径の凸部が形成された凸部有脚部と、を有する、ものとすることもできる。ここで、平板部は、環状のフレーム部と、フレーム部の内側に形成されて流体を通過させるための流体通過部と、からなるものとすることもできる。また、フィルタ部材は、凸部有脚部の端部が電動機領域側となると共に平板部がギヤ領域側となり凸部有脚部の凸部と平板部とによって連通孔の凸部が挟まれるように連通孔に取り付けられる。この態様の本発明の駆動装置において、前記フィルタ部材は、前記平板部と前記凸部有脚部とに加えて、前記平板部に対して前記凸部有脚部と同一側で外周側に凸部が形成されていない凸部無脚部を有する、ものとすることもできる。こうすれば、連通孔の内周面とフィルタ部材との隙間を通ってギヤ領域から電動機領域に異物が進入するのをより制限することができる。   In such a drive device of the present invention, the communication hole is formed with a convex portion over the entire circumference on the electric motor region side rather than the end portion on the gear region side of the inner peripheral surface, and the filter member is Further, it can be formed so as to be able to be fitted to the convex portion of the communication hole. In this way, since the step is formed in the communication hole when viewed from the gear region side, when the filter member is attached to the communication hole as compared with the case where the step is not formed. Further, it is possible to further restrict the entry of foreign matter from the gear region into the electric motor region through the gap between the inner peripheral surface of the communication hole and the filter member. In this aspect of the drive device of the present invention, the filter member has a flat plate portion and a convex portion formed substantially perpendicular to the flat plate portion and having an outer diameter larger than the inner diameter of the convex portion of the communication hole on the outer peripheral side. And a convex leg portion. Here, the flat plate portion may be composed of an annular frame portion and a fluid passage portion that is formed inside the frame portion and allows fluid to pass therethrough. In addition, the filter member has an end portion of the convex leg portion on the motor region side and a flat plate portion on the gear region side so that the convex portion of the communication hole is sandwiched between the convex portion of the convex leg portion and the flat plate portion. It is attached to the communication hole. In this aspect of the drive device of the present invention, in addition to the flat plate portion and the convex leg portion, the filter member protrudes on the outer peripheral side on the same side as the convex leg portion with respect to the flat plate portion. It can also have a convex no-leg part in which a part is not formed. In this way, it is possible to further limit the entry of foreign matter from the gear region into the motor region through the gap between the inner peripheral surface of the communication hole and the filter member.

また、本発明の駆動装置において、前記フィルタ部材は、平板部と、該平板部に略垂直に形成され外周側に前記連通孔の内径よりも大きい外径の凸部が形成された凸部有脚部と、を有する、ものとすることもできる。この場合、フィルタ部材は、凸部有脚部の端部が電動機領域側となると共に平板部がギヤ領域側となり凸部有脚部の凸部と平板部とによって連通孔の凸部が挟まれるように連通孔に取り付けられる。この態様の本発明の駆動装置において、前記フィルタ部材は、前記平板部と前記凸部有脚部とに加えて、前記平板部に対して前記凸部有脚部と同一側で外周側に凸部が形成されていない凸部無脚部を有する、ものとすることもできる。こうすれば、連通孔の内周面とフィルタ部材との隙間を通ってギヤ領域から電動機領域に異物が進入するのをより制限することができる。   In the driving device of the present invention, the filter member includes a flat plate portion and a convex portion formed substantially perpendicular to the flat plate portion and having a convex portion having an outer diameter larger than the inner diameter of the communication hole on the outer peripheral side. And a leg portion. In this case, in the filter member, the end portion of the protruding leg portion is on the motor region side and the flat plate portion is on the gear region side, and the protruding portion of the communication hole is sandwiched between the protruding portion of the protruding leg portion and the flat plate portion. It is attached to the communication hole. In this aspect of the drive device of the present invention, in addition to the flat plate portion and the convex leg portion, the filter member protrudes on the outer peripheral side on the same side as the convex leg portion with respect to the flat plate portion. It can also have a convex no-leg part in which a part is not formed. In this way, it is possible to further limit the entry of foreign matter from the gear region into the motor region through the gap between the inner peripheral surface of the communication hole and the filter member.

さらに、本発明の駆動装置において、前記電動機領域および前記ギヤ領域には、液体の冷却媒体が該冷却媒体の液面が前記区分部材の複数の連通孔の一部よりも上方となる程度に貯留されており、前記複数の連通孔の各々に取付けられる複数のフィルタ部材のうち前記冷却媒体の液面よりも下方となる位置の連通孔に取り付けられるフィルタ部材は、流体が通過可能な総面積である開口面積が第１の面積となるよう形成されてなり、前記複数の連通孔の各々に取り付けられる複数のフィルタ部材のうち前記冷却媒体の液面よりも上方となる位置の連通孔に取り付けられるフィルタ部材は、前記開口面積が前記第１の面積よりも小さい第２の面積となるよう形成されてなる、ものとすることもできる。   Further, in the driving device according to the present invention, the liquid coolant is stored in the motor region and the gear region so that the liquid level of the coolant is above a part of the plurality of communication holes of the partition member. Among the plurality of filter members attached to each of the plurality of communication holes, the filter member attached to the communication hole at a position below the liquid level of the cooling medium has a total area through which fluid can pass. A certain opening area is formed to be the first area, and is attached to the communication hole at a position above the liquid level of the cooling medium among the plurality of filter members attached to each of the plurality of communication holes. The filter member may be formed such that the opening area is a second area smaller than the first area.

本発明の一実施例としてハイブリッド自動車２０に搭載された駆動装置３０の構成の概略を示す構成図である。1 is a configuration diagram showing an outline of a configuration of a drive device 30 mounted on a hybrid vehicle 20 as an embodiment of the present invention. 駆動装置３０の構成の一例を示す構成図である。3 is a configuration diagram illustrating an example of a configuration of a driving device 30. FIG. 区分部材４０に形成された連通孔４２の様子を示す説明図である。It is explanatory drawing which shows the mode of the communicating hole formed in the division member. フィルタ部材６０の外観を示す外観図である。4 is an external view showing an external appearance of a filter member 60. FIG. フィルタ部材６０の外観を示す外観図である。4 is an external view showing an external appearance of a filter member 60. FIG. 図４のフィルタ部材６０のＡ−Ａ断面を示すと共に図５のフィルタ部材６０のＢ−Ｂ断面を示す断面図である。It is sectional drawing which shows the AA cross section of the filter member 60 of FIG. 4, and shows the BB cross section of the filter member 60 of FIG. 連通孔４２にフィルタ部材６０が取り付けられた様子を示す説明図である。It is explanatory drawing which shows a mode that the filter member 60 was attached to the communicating hole. 比較例の連通孔４２ｂにフィルタ部材６０が取り付けられた様子を示す説明図である。It is explanatory drawing which shows a mode that the filter member 60 was attached to the communicating hole 42b of a comparative example. フィルタ部材７０の外観を示す外観図である。3 is an external view showing an external appearance of a filter member 70. FIG.

次に、本発明を実施するための形態を実施例を用いて説明する。   Next, the form for implementing this invention is demonstrated using an Example.

図１は、本発明の一実施例としてハイブリッド自動車２０に搭載された駆動装置３０の構成の概略を示す構成図であり、図２は、駆動装置３０の構成の一例を示す構成図である。実施例の駆動装置３０は、図１に示すように、ガソリンや軽油などを燃料とするエンジン２２と共にハイブリッド自動車２０に搭載され、エンジン２２のクランクシャフト２６にダンパ２８を介してキャリアが接続されると共に駆動輪３９ａ，３９ｂにデファレンシャルギヤ３８，ギヤ機構３７を介して連結された駆動軸３６にリングギヤが接続されたプラネタリギヤ３２と、例えば同期発電電動機として構成されて回転子がプラネタリギヤ３２のサンギヤに接続されたモータＭＧ１と、例えば同期発電電動機として構成されて回転子が駆動軸３６に接続されたモータＭＧ２と、を備える。なお、ハイブリッド自動車２０では、モータＭＧ１，ＭＧ２は、図示しないバッテリと電力をやりとりしている。   FIG. 1 is a configuration diagram showing an outline of the configuration of a drive device 30 mounted on a hybrid vehicle 20 as an embodiment of the present invention, and FIG. 2 is a configuration diagram showing an example of the configuration of the drive device 30. As shown in FIG. 1, the drive device 30 of the embodiment is mounted on a hybrid vehicle 20 together with an engine 22 that uses gasoline or light oil as fuel, and a carrier is connected to a crankshaft 26 of the engine 22 via a damper 28. A planetary gear 32 having a ring gear connected to a drive shaft 36 coupled to the drive wheels 39a and 39b via a differential gear 38 and a gear mechanism 37, and a rotor connected to the sun gear of the planetary gear 32, for example, configured as a synchronous generator motor. And a motor MG2 configured as a synchronous generator motor and having a rotor connected to the drive shaft 36, for example. In hybrid vehicle 20, motors MG1 and MG2 exchange power with a battery (not shown).

この駆動装置３０では、図２に示すように、モータＭＧ１が配置された領域とギヤ機構３７が配置された領域，モータＭＧ２が配置された領域とギヤ機構３７が配置された領域，がそれぞれ区分部材４０によって区分されており、各領域には、液体の冷却媒体としての冷却オイルが貯留されている（図２中、破線は冷却オイルの油面を示す）。以下、モータＭＧ１が配置された領域とモータＭＧ２が配置された領域とをまとめてモータ領域Ｔｍといい、ギヤ機構３７が配置された領域をギヤ領域Ｔｇという。   In this drive device 30, as shown in FIG. 2, the region where the motor MG1 is disposed and the region where the gear mechanism 37 is disposed, and the region where the motor MG2 is disposed and the region where the gear mechanism 37 is disposed are divided. It is divided by the member 40, and cooling oil as a liquid cooling medium is stored in each region (the broken line in FIG. 2 indicates the oil level of the cooling oil). Hereinafter, the region where the motor MG1 is disposed and the region where the motor MG2 is disposed are collectively referred to as a motor region Tm, and the region where the gear mechanism 37 is disposed is referred to as a gear region Tg.

区分部材４０には、モータ領域Ｔｍとギヤ領域Ｔｇとを連通する複数の連通孔４２（図２では４つ）が形成されており、この複数の連通孔４２のうち冷却オイルの油面よりも下方となる位置の連通孔（図２では２つ）には、モータ領域Ｔｍとギヤ領域Ｔｇとの間での冷却オイルの移動を許容すると共に鉄くずなどの固体の異物の移動を制限するフィルタ部材６０が取り付けられており、複数の連通孔４２のうち冷却オイルの油面よりも上方となる位置の連通孔（図２では２つ）には、モータ領域Ｔｍとギヤ領域Ｔｇとの間での空気の移動を許容すると共に異物の移動を制限するフィルタ部材７０が取り付けられている。   The dividing member 40 is formed with a plurality of communication holes 42 (four in FIG. 2) that communicate the motor region Tm and the gear region Tg. A filter that allows the movement of cooling oil between the motor region Tm and the gear region Tg and restricts the movement of solid foreign matters such as iron scraps in the communication holes (two in FIG. 2) at the lower position. A member 60 is attached, and communication holes (two in FIG. 2) at positions above the oil level of the cooling oil among the plurality of communication holes 42 are between the motor region Tm and the gear region Tg. A filter member 70 that allows the movement of air and restricts the movement of foreign matter is attached.

図３は、区分部材４０に形成された連通孔４２の様子を示す説明図である。連通孔４２は、断面が円形となるよう形成されており、図３に示すように、ギヤ領域Ｔｇ側の端部（以下、ギヤ側端部という）から長さＬｈ１（例えば、１ｍｍなど）の位置からモータ領域Ｔｍ側に、ギヤ側端部の内径Ｒｈ１（例えば、１８．５ｍｍなど）よりも小さい内径Ｒｈ２（例えば、１５．５ｍｍなど）で幅Ｗｈ１（例えば、１．５ｍｍなど）の凸部（以下、孔内周凸部という）４４が全周に亘って形成されている。   FIG. 3 is an explanatory view showing a state of the communication hole 42 formed in the sorting member 40. The communication hole 42 is formed to have a circular cross section. As shown in FIG. 3, the communication hole 42 has a length Lh1 (for example, 1 mm) from an end on the gear region Tg side (hereinafter referred to as a gear side end). From the position toward the motor region Tm, a convex portion having an inner diameter Rh2 (for example, 15.5 mm) smaller than an inner diameter Rh1 (for example, 18.5 mm) at the gear side end and a width Wh1 (for example, 1.5 mm). 44 (hereinafter referred to as a hole inner circumferential convex portion) is formed over the entire circumference.

図４および図５は、フィルタ部材６０の外観を示す外観図であり、図６は、図４のフィルタ部材６０のＡ−Ａ断面を示すと共に図５のフィルタ部材６０のＢ−Ｂ断面を示す断面図である。フィルタ部材６０は、樹脂や金属などによって形成されており、図４〜図６に示すように、環状のフレーム部６２とフレーム部６２の内側に形成されて流体を通過させるための流体通過部６４とを有する平板部６１と、平板部６１に略垂直に形成されて外周側に凸部（以下、脚部外周凸部という）６７が形成された凸部有脚部６６（実施例では４つ）と、平板部６１に対して凸部有脚部６６と同一側で外周側に凸部６７が形成されていない凸部無脚部６８（実施例では８つ）と、からなる。フレーム部６２は、連通孔４２のギヤ側端部と孔内周凸部４４との間の長さＬｈ１よりも大きな厚みＤｆ１で且つ連通孔４２のギヤ側端部の内径Ｒｈ１よりも僅かに小さく孔内周凸部４４の内径Ｒｈ２よりも大きい外径Ｒｆ１の環状に形成されている。流体通過部６４は、空気や冷却オイルなどの流体は通過できるが鉄くずなどの固体の異物は通過できない程度の大きさの格子状に形成されており、冷却オイルが十分に通過できるようにするために、連通孔４２の最小断面積（孔内周凸部４４における断面積）に対する流体が移動可能な総面積（以下、開口面積割合という）が第１の割合（例えば、７０％など）となるように形成されている。凸部有脚部６６は、フレーム部６２への付け根から孔内周凸部４４の幅Ｗｈ１よりも長い長さＬｆ１の位置（中間位置）までについては外径Ｒｆ２が孔内周凸部４４の内径Ｒｈ２よりも僅かに小さくなるよう形成されており、中間位置よりも端部側については外周側に孔内周凸部４４の内径Ｒｈ２よりも大きい外径Ｒｆ３の脚部外周凸部６７が形成されている。凸部無脚部６８は、外径Ｒｆ２が内径Ｒｈ２よりも僅かに小さくなるよう形成されている。   4 and 5 are external views showing the external appearance of the filter member 60, and FIG. 6 shows an AA cross section of the filter member 60 of FIG. 4 and a BB cross section of the filter member 60 of FIG. It is sectional drawing. The filter member 60 is formed of resin, metal, or the like. As illustrated in FIGS. 4 to 6, the filter member 60 is formed inside the annular frame portion 62 and the frame portion 62 to allow fluid to pass therethrough. And a flat leg portion 66 (four in the embodiment) which is formed substantially perpendicular to the flat plate portion 61 and has a convex portion (hereinafter referred to as a leg outer peripheral convex portion) 67 formed on the outer peripheral side. ) And convex no-leg portions 68 (eight in the embodiment) on the same side of the flat plate portion 61 as the convex leg portions 66 and having no convex portions 67 on the outer peripheral side. The frame portion 62 has a thickness Df1 larger than the length Lh1 between the gear side end portion of the communication hole 42 and the inner circumferential convex portion 44 and is slightly smaller than the inner diameter Rh1 of the gear side end portion of the communication hole 42. The circumferential convex portion 44 is formed in an annular shape having an outer diameter Rf1 larger than the inner diameter Rh2. The fluid passage portion 64 is formed in a lattice shape having such a size that a fluid such as air or cooling oil can pass but a solid foreign matter such as iron scrap cannot pass through, so that the cooling oil can sufficiently pass therethrough. Therefore, the total area (hereinafter referred to as the opening area ratio) in which the fluid can move with respect to the minimum cross-sectional area of the communication hole 42 (the cross-sectional area of the hole inner circumferential convex portion 44) is the first ratio (for example, 70%). Is formed. The convex leg portion 66 has an outer diameter Rf2 larger than an inner diameter Rh2 of the hole inner circumferential convex portion 44 from the root to the frame portion 62 to a position (intermediate position) having a length Lf1 longer than the width Wh1 of the hole inner circumferential convex portion 44. A leg outer peripheral convex portion 67 having an outer diameter Rf3 larger than the inner diameter Rh2 of the hole inner peripheral convex portion 44 is formed on the outer peripheral side on the end side with respect to the intermediate position. The convex legless portion 68 is formed such that the outer diameter Rf2 is slightly smaller than the inner diameter Rh2.

図７は、連通孔４２にフィルタ部材６０が取り付けられた様子を示す説明図である。フィルタ部材６０は、図７に示すように、脚部外周凸部６７とフレーム部６２とによって連通孔４２の孔内周凸部４４が挟まれるように、凸部有脚部６６や凸部無脚部６８の端部を先端としてギヤ領域Ｔｇ側から連通孔４２に挿入されることにより、連通孔４２に取り付けられる。実施例では、連通孔４２の孔内周凸部４４（ギヤ領域Ｔｇ側から見て段差となる）が形成されていてこの孔内周凸部４４に嵌合するよう（孔内周凸部４４が脚部外周凸部６７とフレーム部６２とによって挟まれるよう）フィルタ部材６０が取り付けられるから、内周面に凸部が形成されていない連通孔４２ｂにフィルタ部材６０が取り付けられる場合（図８参照）に比して、連通孔４２の内周面とフィルタ部材６０との隙間を通ってギヤ領域Ｔｇ内の異物がモータ領域Ｔｍに進入するのをより制限することができる。しかも、フィルタ部材６０は、凸部有脚部６６（実施例では４つ）だけでなく凸部無脚部６８（実施例では８つ）も形成するから、凸部有脚部６６だけを形成して凸部無脚部６８を形成しないものに比して、フィルタ部材６０が連通孔４２に取り付けられたときに連通孔４２に対向する壁の部分（フレーム部６２や凸部有脚部６６，凸部無脚部６８）の面積をより大きくすることができ、連通孔４２の内周面とフィルタ部材６０との隙間を通ってギヤ領域Ｔｇ内の異物がモータ領域Ｔｍに進入するのをより制限することができる。なお、実施例では、フィルタ部材６０の凸部有脚部６６は、連通孔４２の孔内周凸部４４の内径Ｒｈ２よりも小さい外径となるよう端部が形成されると共に端部から中間位置に向けて滑らかに外径が大きくなるよう形成されており、フィルタ部材６０がギヤ領域Ｔｇ側から連通孔４２に取り付けられる際に凸部有脚部６６が内側に変形しながら取り付けられることができるようになっている。   FIG. 7 is an explanatory view showing a state in which the filter member 60 is attached to the communication hole 42. As shown in FIG. 7, the filter member 60 has a convex legged portion 66 and a convex no-leg portion so that the inner peripheral convex portion 44 of the communication hole 42 is sandwiched between the leg outer peripheral convex portion 67 and the frame portion 62. It is attached to the communication hole 42 by being inserted into the communication hole 42 from the gear region Tg side with the end of 68 as a tip. In the embodiment, a hole inner circumferential convex portion 44 (a step when viewed from the gear region Tg side) of the communication hole 42 is formed and fitted into the hole inner circumferential convex portion 44 (the hole inner circumferential convex portion 44 is a leg outer circumferential convex portion. Since the filter member 60 is attached (so as to be sandwiched between 67 and the frame portion 62), as compared with the case where the filter member 60 is attached to the communication hole 42b where the convex portion is not formed on the inner peripheral surface (see FIG. 8). Further, it is possible to further restrict the foreign matter in the gear region Tg from entering the motor region Tm through the gap between the inner peripheral surface of the communication hole 42 and the filter member 60. Moreover, since the filter member 60 forms not only the convex legged portions 66 (four in the embodiment) but also the convex no-leg portions 68 (eight in the embodiment), only the convex legged portions 66 are formed. As compared with the case where the convex part no leg part 68 is formed, the wall part (the frame part 62 or the convex leg part 66 that faces the communication hole 42 when the filter member 60 is attached to the communication hole 42). , The protruding legless portion 68) can be made larger, and foreign matter in the gear region Tg can enter the motor region Tm through the gap between the inner peripheral surface of the communication hole 42 and the filter member 60. More restrictive. In the embodiment, the convex legged portion 66 of the filter member 60 is formed with an end portion having an outer diameter smaller than the inner diameter Rh2 of the inner circumferential convex portion 44 of the communication hole 42, and at an intermediate position from the end portion. The outer diameter of the filter member 60 is formed so as to be smoothly increased toward the outer periphery, and when the filter member 60 is attached to the communication hole 42 from the gear region Tg side, the protruding leg portion 66 can be attached while being deformed inward. It has become.

図９は、フィルタ部材７０の外観を示す外観図である。フィルタ部材７０は、図９に例示するように、フレーム部７２や凸部有脚部７６，凸部無脚部７８についてはフィルタ部材６０のフレーム部６２や凸部有脚部６６，凸部無脚部６８と同一形状に形成されており、流体通過部７４については開口面積割合がフィルタ部材６０の開口面積割合（第１の割合）よりも小さい第２の割合（例えば、３０％など）となるように、流体は通過できるが鉄くずなどの固体の異物は通過できない大きさの複数の孔７５が平板に開けられたものとして形成されている。このフィルタ部材７０は、フィルタ部材６０と同様に連通孔４２に取り付けられる。したがって、フィルタ部材７０が連通孔４２に取り付けられた箇所については、開口面積割合が異なる点を除いて、フィルタ部材６０が連通孔４２に取り付けられた箇所と同様の効果を奏することができる。また、フィルタ部材７０の開口面積割合をフィルタ部材６０の開口面積割合よりも小さく形成することにより、フィルタ部材６０が取り付けられる箇所では冷却オイルの通過量を多くすることができ、フィルタ部材７０が取り付けられる箇所ではギヤ領域Ｔｇからモータ領域Ｔｍに異物が侵入するのをより制限することができる。   FIG. 9 is an external view showing the external appearance of the filter member 70. As illustrated in FIG. 9, the filter member 70 has a frame portion 72, a convex legged portion 76, and a convex portion legless portion 78, and the filter member 60 has a frame portion 62, a convex portion legged portion 66, and no convex portion. The leg portion 68 is formed in the same shape, and the fluid passage portion 74 has a second ratio (for example, 30%) in which the opening area ratio is smaller than the opening area ratio (first ratio) of the filter member 60. In this way, a plurality of holes 75 are formed in the flat plate so that fluid can pass through but solid foreign matters such as iron scrap cannot pass through. The filter member 70 is attached to the communication hole 42 similarly to the filter member 60. Therefore, the portion where the filter member 70 is attached to the communication hole 42 can achieve the same effect as the portion where the filter member 60 is attached to the communication hole 42 except that the opening area ratio is different. In addition, by forming the opening area ratio of the filter member 70 smaller than the opening area ratio of the filter member 60, it is possible to increase the passing amount of the cooling oil at a place where the filter member 60 is attached. The foreign material can be further restricted from entering the motor region Tm from the gear region Tg.

以上説明した実施例の駆動装置３０によれば、連通孔４２にフィルタ部材６０やフィルタ部材７０を取り付けることにより、ギヤ領域Ｔｇ内の鉄くずなどの異物がモータ領域Ｔｍに進入するのをより制限することができる。しかも、連通孔４２の内周面に孔内周凸部４４（ギヤ領域Ｔｇから見て段差となる）を形成してこれと嵌合するように形成したフィルタ部材６０，７０を連通孔４２に取り付けることにより、連通孔４２の内周面に凸部を形成しないものに比して、連通孔４２の内周面とフィルタ部材６０との隙間を通ってギヤ領域Ｔｇからモータ領域Ｔｍに異物が進入するのをより制限することができる。また、フィルタ部材６０，７０に、凸部有脚部６６，７６だけでなく凸部無脚部６８，７８も形成することによっても、連通孔４２の内周面とフィルタ部材６０との隙間を通ってギヤ領域Ｔｇ側からモータ領域Ｔｍに異物が侵入するのをより制限することができる。さらに、冷却オイルの油面よりも上方となる位置に形成された連通孔４２には、冷却オイルの油面よりも下方となる位置に形成された連通孔に取り付けるフィルタ部材７０よりも開口面積割合が小さいフィルタ部材６０を取り付けることにより、ギヤ領域Ｔｇ側からモータ領域Ｔｍに異物が進入するのをより制限することができる。   According to the drive device 30 of the embodiment described above, by attaching the filter member 60 and the filter member 70 to the communication hole 42, foreign matter such as iron scrap in the gear region Tg is further restricted from entering the motor region Tm. can do. In addition, the hole inner peripheral convex portion 44 (which is a step when viewed from the gear region Tg) is formed on the inner peripheral surface of the communication hole 42 and the filter members 60 and 70 formed so as to be fitted to the hole are attached to the communication hole 42. As a result, as compared with a case where no convex portion is formed on the inner peripheral surface of the communication hole 42, foreign matter enters the motor region Tm from the gear region Tg through the gap between the inner peripheral surface of the communication hole 42 and the filter member 60. Can be more restricted. Further, by forming not only the protruding leg portions 66 and 76 but also the protruding legless portions 68 and 78 in the filter members 60 and 70, the gap between the inner peripheral surface of the communication hole 42 and the filter member 60 can be reduced. It is possible to further limit the entry of foreign matter from the gear region Tg side to the motor region Tm. Furthermore, the communication hole 42 formed at a position above the oil level of the cooling oil has a larger opening area ratio than the filter member 70 attached to the communication hole formed at a position below the oil level of the cooling oil. By attaching the filter member 60 having a small size, it is possible to further limit the foreign matter from entering the motor region Tm from the gear region Tg side.

実施例の駆動装置３０では、フィルタ部材６０，７０は、凸部有脚部６６，７６と凸部無脚部６８，７８とを形成するものとしたが、凸部無脚部６８，７８を形成しないものとしてもよい。   In the driving device 30 of the embodiment, the filter members 60 and 70 are formed with the protruding leg portions 66 and 76 and the protruding legless portions 68 and 78. It is good also as what does not form.

実施例の駆動装置３０では、フィルタ部材６０，７０は、平板部６１，７１と凸部有脚部６６，７６と凸部無脚部６８，７８とからなるものとしたが、これに限られず、連通孔４２の孔内周凸部４４に嵌合するよう形成するものであればよい。   In the driving device 30 of the embodiment, the filter members 60 and 70 are composed of the flat plate portions 61 and 71, the convex legged portions 66 and 76, and the convex no-leg portions 68 and 78, but are not limited thereto. Any material may be used as long as it is formed so as to be fitted to the inner circumferential convex portion 44 of the communication hole 42.

実施例の駆動装置３０では、フィルタ部材６０，７０は、流体通過部６４，７４の形状が異なる点を除いて同一形状に形成するものとしたが、流体通過部６４，７４を含めて即ち全体として同一形状に形成するものとしてもよい。   In the driving device 30 of the embodiment, the filter members 60 and 70 are formed in the same shape except that the shapes of the fluid passage portions 64 and 74 are different. It is good also as what forms in the same shape.

実施例の駆動装置３０では、区分部材４０の連通孔４２の内周面に孔内周凸部４４を形成するものとしたが、図８に例示したように、連通孔４２ｂの内周面に凸部を形成しないものとしてもよい。この場合、フィルタ部材６０，７０は、凸部有脚部６６，７６の脚部外周凸部６７，７７の外径が連通孔４２ｂの内径よりも大きくなるよう形成すればよい。   In the driving device 30 of the embodiment, the hole inner peripheral convex portion 44 is formed on the inner peripheral surface of the communication hole 42 of the sorting member 40. However, as illustrated in FIG. 8, the convex portion is formed on the inner peripheral surface of the communication hole 42b. It is good also as what does not form. In this case, the filter members 60 and 70 may be formed such that the outer diameters of the leg outer peripheral convex portions 67 and 77 of the convex legged portions 66 and 76 are larger than the inner diameter of the communication hole 42b.

実施例の駆動装置３０では、２つのモータを備えるものとしたが、モータの数は１つであるものとしてもよいし、３つ以上であるものとしてもよい。   In the driving device 30 of the embodiment, two motors are provided. However, the number of motors may be one, or may be three or more.

実施例では、ハイブリッド自動車２０に搭載された駆動装置３０について説明したが、自動車以外の車両や船舶，航空機などの移動体に搭載される駆動装置の形態や建設設備などの移動しない設備に組み込まれた駆動装置の形態としてもよい。   In the embodiment, the drive device 30 mounted on the hybrid vehicle 20 has been described. However, the drive device 30 is mounted on a moving body such as a vehicle other than the vehicle, a ship, an aircraft, or the like, or incorporated in a non-moving facility such as a construction facility. It may be in the form of another driving device.

実施例の主要な要素と課題を解決するための手段の欄に記載した発明の主要な要素との対応関係について説明する。実施例では、モータＭＧ１，ＭＧ２が「電動機」に相当し、プラネタリギヤ３２やギヤ機構３７が「ギヤ機構」に相当し、区分部材４０が「区分部材」に相当し、フィルタ部材６０，７０が「フィルタ部材」に相当する。   The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the motors MG1 and MG2 correspond to “electric motors”, the planetary gear 32 and the gear mechanism 37 correspond to “gear mechanisms”, the sorting member 40 corresponds to “sorting members”, and the filter members 60 and 70 “ It corresponds to a “filter member”.

ここで、「電動機」としては、同期発電電動機として構成されたモータＭＧ１，ＭＧ２に限定されるものではなく、誘導電動機など、動力を入出力可能なものであれば如何なるタイプの電動機であっても構わない。「ギヤ機構」としては、プラネタリギヤ３２やギヤ機構３７に限定されるものではなく、電動機の回転軸に接続されたものであれば如何なるものとしても構わない。「区分部材」としては、区分部材４０に限定されるものではなく、電動機が配置された領域である電動機領域とギヤ機構が配置された領域であるギヤ領域とを区分するものであれば如何なるものとしても構わない。「フィルタ部材」としては、フィルタ部材６０，７０に限定されるものではなく、電動機領域とギヤ領域との間での流体の移動を許容すると共に固体の移動を制限するものであれば如何なるものとしても構わない。   Here, the “motor” is not limited to the motors MG1 and MG2 configured as the synchronous generator motor, and may be any type of motor that can input and output power, such as an induction motor. I do not care. The “gear mechanism” is not limited to the planetary gear 32 or the gear mechanism 37, and may be anything as long as it is connected to the rotating shaft of the electric motor. The “segment member” is not limited to the segment member 40, and any member can be used as long as it classifies the motor region where the motor is disposed and the gear region where the gear mechanism is disposed. It does not matter. The “filter member” is not limited to the filter members 60 and 70, and any filter member that allows fluid movement between the motor region and the gear region and restricts solid movement. It doesn't matter.

なお、実施例の主要な要素と課題を解決するための手段の欄に記載した発明の主要な要素との対応関係は、実施例が課題を解決するための手段の欄に記載した発明を実施するための形態を具体的に説明するための一例であることから、課題を解決するための手段の欄に記載した発明の要素を限定するものではない。即ち、課題を解決するための手段の欄に記載した発明についての解釈はその欄の記載に基づいて行なわれるべきものであり、実施例は課題を解決するための手段の欄に記載した発明の具体的な一例に過ぎないものである。   The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the same as that of the embodiment described in the column of means for solving the problem. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. That is, the interpretation of the invention described in the column of means for solving the problems should be made based on the description of the column, and the examples are those of the invention described in the column of means for solving the problems. It is only a specific example.

以上、本発明を実施するための形態について実施例を用いて説明したが、本発明はこうした実施例に何等限定されるものではなく、本発明の要旨を逸脱しない範囲内において、種々なる形態で実施し得ることは勿論である。   As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited at all to such an Example, In the range which does not deviate from the summary of this invention, it is with various forms. Of course, it can be implemented.

本発明は、駆動装置の製造産業に利用可能である。   The present invention is applicable to the drive device manufacturing industry.

２０ ハイブリッド自動車、２２ エンジン、２６ クランクシャフト、２８ ダンパ、３０ 駆動装置、３２ プラネタリギヤ、３６ 駆動軸、３７ ギヤ機構、３８ デファレンシャルギヤ、３９ａ，３９ｂ 駆動輪、４０ 区分部材、４２ 連通孔、４２ｂ 連通孔、４４ 凸部、５０ バッテリ、６０，７０ フィルタ部材、６２，７２ フレーム部、６４，７４ 流体通過部、６６，７６ 凸部有脚部、６７，７７ 凸部、６８，７８ 凸部無脚部。   20 Hybrid vehicle, 22 Engine, 26 Crankshaft, 28 Damper, 30 Drive device, 32 Planetary gear, 36 Drive shaft, 37 Gear mechanism, 38 Differential gear, 39a, 39b Drive wheel, 40 Separating member, 42 Communication hole, 42b Communication hole , 44 Convex part, 50 Battery, 60, 70 Filter member, 62, 72 Frame part, 64, 74 Fluid passage part, 66, 76 Convex part leg part, 67, 77 Convex part, 68, 78 Convex part legless part .

Claims (6)

動力を入出力可能な電動機と、該電動機の回転軸に接続されたギヤ機構と、を備え、前記電動機が配置された領域である電動機領域と前記ギヤ機構が配置された領域であるギヤ領域とを区分する区分部材に両領域を連通する連通孔が形成されてなる駆動装置であって、
前記連通孔には、前記電動機領域と前記ギヤ領域との間での流体の移動を許容すると共に固体の移動を制限するフィルタ部材が取り付けられてなる、
駆動装置。 An electric motor capable of inputting and outputting power; and a gear mechanism connected to a rotating shaft of the electric motor, and an electric motor region in which the electric motor is disposed and a gear region in which the gear mechanism is disposed A driving device in which a communicating hole that communicates both regions is formed in a sorting member that classifies
The communication hole is attached with a filter member that allows movement of fluid between the electric motor region and the gear region and restricts movement of the solid.
Drive device. 請求項１記載の駆動装置であって、
前記連通孔は、内周面のうち前記ギヤ領域側の端部よりも前記電動機領域側に、全周に亘って凸部が形成されてなり、
前記フィルタ部材は、前記連通孔の凸部に嵌合可能に形成されてなる、
駆動装置。 The drive device according to claim 1,
The communication hole is formed with a convex portion over the entire circumference on the motor region side of the inner peripheral surface rather than the end portion on the gear region side,
The filter member is formed so as to be fitted to a convex portion of the communication hole.
Drive device. 請求項２記載の駆動装置であって、
前記フィルタ部材は、平板部と、該平板部に略垂直に形成され外周側に前記連通孔の凸部の内径よりも大きい外径の凸部が形成された凸部有脚部と、を有する、
駆動装置。 The drive device according to claim 2,
The filter member includes a flat plate portion, and a convex leg portion that is formed substantially perpendicular to the flat plate portion and has a convex portion having an outer diameter larger than the inner diameter of the convex portion of the communication hole on the outer peripheral side. ,
Drive device. 請求項１記載の駆動装置であって、
前記フィルタ部材は、平板部と、該平板部に略垂直に形成され外周側に前記連通孔の内径よりも大きい外径の凸部が形成された凸部有脚部と、を有する、
駆動装置。 The drive device according to claim 1,
The filter member includes a flat plate portion, and a convex leg portion which is formed substantially perpendicular to the flat plate portion and has a convex portion having an outer diameter larger than the inner diameter of the communication hole on the outer peripheral side.
Drive device. 請求項３または４記載の駆動装置であって、
前記フィルタ部材は、前記平板部と前記凸部有脚部とに加えて、前記平板部に対して前記凸部有脚部と同一側で外周側に凸部が形成されていない凸部無脚部を有する、
駆動装置。 The drive device according to claim 3 or 4,
In addition to the flat plate portion and the convex legged portion, the filter member has a convex no-leg on which no convex portion is formed on the outer peripheral side on the same side as the convex legged portion with respect to the flat plate portion. Having a part,
Drive device. 請求項１ないし５のいずれか１つの請求項に記載の駆動装置であって、
前記電動機領域および前記ギヤ領域には、液体の冷却媒体が該冷却媒体の液面が前記区分部材の複数の連通孔の一部よりも上方となる程度に貯留されており、
前記複数の連通孔の各々に取り付けられる複数のフィルタ部材のうち前記冷却媒体の液面よりも下方となる位置の連通孔に取り付けられるフィルタ部材は、流体が通過可能な総面積である開口面積が第１の面積となるよう形成されてなり、
前記複数の連通孔の各々に取り付けられる複数のフィルタ部材のうち前記冷却媒体の液面よりも上方となる位置の連通孔に取り付けられるフィルタ部材は、前記開口面積が前記第１の面積よりも小さい第２の面積となるよう形成されてなる、
駆動装置。 The drive device according to any one of claims 1 to 5,
In the electric motor region and the gear region, the liquid cooling medium is stored so that the liquid level of the cooling medium is above a part of the plurality of communication holes of the partition member,
Of the plurality of filter members attached to each of the plurality of communication holes, the filter member attached to the communication hole at a position below the liquid level of the cooling medium has an opening area that is a total area through which fluid can pass. Formed to have a first area,
Of the plurality of filter members attached to each of the plurality of communication holes, the filter member attached to the communication hole at a position above the liquid level of the cooling medium has a smaller opening area than the first area. Formed to have a second area,
Drive device.
JP2009292365A 2009-12-24 2009-12-24 Driving device Pending JP2011133017A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020128794A (en) * 2019-02-08 2020-08-27 ジヤトコ株式会社 Power transmission device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020128794A (en) * 2019-02-08 2020-08-27 ジヤトコ株式会社 Power transmission device
JP7383859B2 (en) 2019-02-08 2023-11-21 ジヤトコ株式会社 power transmission device

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