CN100520121C - 油压回路装置及使用了它的混合动力驱动装置 - Google Patents

油压回路装置及使用了它的混合动力驱动装置 Download PDF

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CN100520121C
CN100520121C CNB2006800057342A CN200680005734A CN100520121C CN 100520121 C CN100520121 C CN 100520121C CN B2006800057342 A CNB2006800057342 A CN B2006800057342A CN 200680005734 A CN200680005734 A CN 200680005734A CN 100520121 C CN100520121 C CN 100520121C
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oil
mentioned
motor
valve
circuit device
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CN101128689A (zh
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榎本和人
三浦靖知
和久田聪
尾崎和久
长岛伸幸
足立昌俊
藤川雅人
丸山智之
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Aisin AW Co Ltd
Toyota Motor Corp
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Toyota Motor Corp
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    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
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    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
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Abstract

本发明提供一种油压回路装置及使用了它的混合动力驱动装置。其中，在从阀体(10a)的阀孔(20c、20d)偏移的位置上配置排油孔(25c、25d)。排油孔具有烟筒状的较长的空间，这样即使从电机剥离下来的绝缘材料(清漆等)漂浮于油中，仍可以减少从排油孔(25c、25d)向排油室(24c、24d)内侵入。

Description

油压回路装置及使用了它的混合动力驱动装置
技术领域
本发明涉及适合用在搭载于汽车中的动力传动系统，特别是适合用在混合动力驱动装置的阀体中的油压回路装置，具体地说是涉及油压回路装置的排油。
背景技术
一般情况下，在汽车所搭载的自动变速器或混合动力驱动装置等的动力传动系统中，均设有供给成为润滑油或液压油的机油的油压回路装置，该油压回路装置由阀体及配置于该阀体内的各种阀构成，而且该阀体被配置于：在自动变速器或混合动力驱动装置的箱体下部设置的油盘内。
上述阀体，在其下方配置有滤油器，并通过该滤油器来吸入油盘内的机油，并利用上述阀体内的换挡油阀等切换阀、调节器阀、调制管等调压阀、及止回阀等其它阀而适当调压并切换，并将上述机油作为液压油向上述自动变速器或混合动力驱动装置的各种液压伺服机构供给，或将上述机油作为润滑油向各需要润滑的部位供给。
在阀体中形成有容纳各种阀的圆筒状的阀孔、和连通各阀的油口的连通路、以及连通上述阀孔与外部的排油孔，基于切换阀的切换位置，来将入油口与排油口连通，而且将调压阀的过剩油从排油口中排出，并将机油从排油口向阀体的外部排出，回收到油盘中(例如参照日本专利特开平10-184859号公报)。
以往，上述排油孔被开设在阀体中的阀孔的中央部分，以将从各阀的排油口流出的排出油迅速地从排油孔向外部排出。
以往，在形成上述阀孔的阀体的圆筒凸出部的顶部附近(参照图3的符号25e)形成有排油孔，在这种构成中，从阀的排油口流出的机油的排出，是从对应于排油口的排油孔直接排出到油盘中的，作为机油的排出功能虽然很优异，但混杂在油盘的机油中的金属屑、树脂片等固体片(异物)容易从排油孔进入到阀孔，且该异物进入到阀的油口以及滑阀内而有时产生阀卡住。
特别是，在混合动力驱动装置的情况下，再加上因具备电机(控制用电机、驱动用电机)的关系，为了冷却该电机而流出润滑油，但此时被包覆在线圈上的清漆等的绝缘材料被剥离，并作为树脂(膜)片混入机油中。特别是，在FR用的混合动力驱动装置的情况下，随着搭载车辆的大型化，驱动用电机也就使用较大容量的电机，随之产生了大量的热，故大量的机油被该驱动用电机使用，再加上油盘配置在该驱动用电机的箱体下部，而导致混入有较多树脂片的机油容易直接回流到油盘中。
因比重的关系，金属屑会沉到油盘的底部，且从位于油盘上部的阀体的排油孔侵入到排油孔的情况比较少，但树脂片在机油中漂浮，而最终从排油孔侵入到阀孔的可能性较高。
发明内容
因此，本发明的目的在于，提供一种防止混杂于机油中的树脂片等异物从排油孔侵入的油压回路装置以及使用了它的混合动力驱动装置。
本发明(例如参照图3)的油压回路装置，具备在箱体(72)下部的油盘(9)内配置的阀体，且该阀体(10)具有：装配有阀的阀孔(20c、20d)、与上述阀的排油口连通的排油室(24c、24d)、以及将该排油室与外部连通的排油孔(25c、25d)，其特征在于，
形成上述排油室的下壁面，以包围上述阀孔的下方的方式凸出，且还具有沿上述阀孔向上方突出的壁部，
上述排油孔被配置在隔着上述壁部而从上述阀孔偏移的位置上，而且由在上下方向上延伸的壁面形成。
由此，由于将排油孔从装配有阀的阀孔偏移来配置，所以即使例如机油中混入有树脂片等异物，该异物也不会从排油孔直接侵入排油口中，能够减少阀卡住。
优选为，上述排油孔(25c、25d)具有烟筒状的较长的空间。
这样，由于排油孔具有烟筒状的较长的空间，所以即使在机油中漂浮有树脂片等异物，例如该异物漂入排油孔中，该异物也极有可能随着自阀排出的机油而从排油孔中被排出，这样就减少了上述异物在侵入到排油室后再侵入到排油口的滑阀部分，而产生阀卡住的现象。
更为优选的是，上述排油孔(25c、25d)的排油室侧(23c、23d)延伸至与该排油室的阀孔(20c、20d)上端(a、b)大致相同高度。
由此，即使例如上述异物在排油孔中漂浮而侵入到排油室中，也不会直接侵入到装配于排油孔的阀中，上述异物随着从排油口的机油的排出，而从排油室入口部分向排油孔被排出的可能性变高。
另外(例如参照图2)，在上述油盘(9)内装配有滤油器(11)，且将该滤油器的护罩(11a)上面与上述排油孔(25c、25d)的开口(e、f)接近地配置。
这样，由于将排油孔的开口与滤油器护罩上面接近地配置，所以可以阻止较大的异物达至排油孔的开口，从而可以减少异物从排油孔侵入的可能性。
而且(例如参照图4)，在上述排油孔(25h)的开口(i)的前后方向上形成堤部(j、k)，并利用这些前后堤部的间隔来形成在左右方向上连通的连通路(30)。
即，在将该油压回路搭载于车辆上时，随着车辆的起动及停止，油盘的油会在前后方向上移动，但混入于该油中的异物，因被前后方向的堤部所遮挡，而不会直接被引导到排油孔中，从而减少异物向排油孔侵入的可能性，而且从排油孔流出的机油也能够从左右的连通路迅速地排出。
此外，上述阀在通常状态下，排油口呈连通。
这样，通常(初始)时，排油口开着口的阀虽然因从排油口侵入的异物而容易产生阀卡住，但如上述的技术方案1～5所述那样，能够防止异物从排油孔侵入，而减少阀卡住的发生。
另外，本发明的混合动力驱动装置，具备电机(2、5)、变速装置(6)、和上述的油压回路装置，将上述电机及变速装置容纳于箱体(7)内，而且在该箱体的下部的油盘(9)内配置上述阀体(10)，将被该阀体内的调压阀调压后的润滑油供给到上述电机并冷却该电机后，回流至上述油盘中。
进而，本发明(例如参照图1)的混合动力驱动装置(1)，具备控制用电机(2)、动力分配用行星齿轮机构(3)、驱动用电机(5)及变速装置(6)，上述动力分配用行星齿轮机构(3)具有：传递有来自内燃发动机的输出的第一元件、与上述控制用电机连通的第二元件、以及与输出轴连动的第三元件，上述驱动用电机的输出经由上述变速装置(6)传递到上述输出轴上，该混合动力驱动装置(1)，具备上述的油压回路装置，并将上述控制用电机(2)、动力分配用行星齿轮机构(3)、驱动用电机(5)及变速装置(6)容纳于箱体(7)内，而且在该箱体的下部的油盘(9)内配置上述阀体(10)，将被该阀体内的调压阀调压后的润滑油供给到上述控制用及驱动用电机(2、5)并冷却这些电机后，回流至上述油盘(9)中。
即，对于具有控制用以及驱动用等电机的混合动力驱动装置而言，在作为电机的冷却用所使用的润滑油中，容易混入作为绝缘材料的树脂片，特别是在线圈上涂敷的清漆发生剥离后的树脂片，再加上具有变速装置的关系，就需要有切换阀，而且需要有即使在运行中也不会经常将机油排出的排油孔，虽然漂浮在机油中的上述树脂片(膜)易于从排油孔侵入，但如上述那样，则可以防止异物从排油孔侵入，并减少阀卡住的发生，由此能够提供可靠度较高的混合动力驱动装置。
另外，上述混合动力驱动装置中，将上述控制用电机(2)、动力分配用行星齿轮机构(3)、驱动用电机(5)、变速装置(6)及输出轴配置在一轴上，而且在容纳上述驱动用电机的电机箱体部(72)的下部，配置上述油盘(9)以及阀体(10)。
即，对于将各种装置配置在一轴上的、FR用的混合动力驱动装置而言，需要设置大型的驱动用电机，这就需要由平衡于发热量的大量的润滑油进行冷却，这样就增大了树脂片混入到机油中的可能性，而且，该树脂片漂浮在机油中而从电机箱体部直接回流至油盘及阀体中，从排油孔侵入的可能性变高，但如上述的技术方案1～6所记载的那样，则可以防止上述树脂片从排油孔侵入，并减少阀卡住的发生，由此能够提供可靠度较高的FR用混合动力驱动装置。
此外，上述括号内的符号，虽然是为与图对照用的，但不会因此而对技术方案的记载带来任何影响。
附图说明
图1是表示可应用本发明的混合动力驱动装置的润滑/冷却路径的示意图。
图2是表示将混合动力驱动装置的电机箱体部以及油盘部分切除一部分的侧视图。
图3是表示阀体的下部的剖视图。
图4是表示另一个实施方式的阀体的底面图。
具体实施方式
以下，按附图顺序对本发明的实施方式进行说明。图1表示应用了本发明的混合动力驱动装置的油压回路装置的图，混合动力驱动装置1为前置后驱用，在图中左侧连结有内燃发动机，从右侧朝向后车轮连结有传动轴。该混合动力驱动装置1中，配置有从发动机侧到曲轴排列的在一轴上依次配置的控制用电机2、动力分配用行星齿轮机构3、驱动用电机5，以及变速装置6，这些各装置被容纳在：将分割的各箱体71、72、73组装成一体的箱体7中。
在容纳驱动用电机5的电机箱体部72的下方结合有油盘9，在该油盘内配置有：安装固定在上述电机箱体部72下面的阀体10。而且，在该阀体10的下方的油盘9内还配置有滤油器11，在箱体7的隔壁及侧壁上形成有油路12、13，而且在作为中心旋转轴的输出轴上还形成有油路15。
在阀体10内，容纳有换挡油阀等切换阀、调节器阀、调制管等调压阀及止回阀等其它的阀等各种阀，而且，还形成有连通这些各阀的油路、与滤油器连通的入油路以及出油路等油路。另外，在来自滤油器11的上述油路上还夹设有由电动泵等构成的油泵16，由该油泵、上述阀体10等构成油压回路装置。
上述混合动力驱动装置1中，发动机的输出经由减震装置及输入轴而传递到行星齿轮机构3的第一元件(例如行星轮架)上，并由该行星齿轮机构3，将上述发动机的输出分别从第二元件(例如太阳齿轮)分配到控制用电机2，从第三元件(例如齿圈)分配到输出轴上。这里，通过控制控制用电机2，可对输出轴的输出转矩及旋转进行无级地调整。另一方面，驱动用电机5的输出，通过拉威挪式的行星齿轮机构以及由低速制动器、高速制动器等切换机构构成的变速装置6被切换成低、高速两级，并向输出轴输出。此外，在将控制用电机2的发电作为能量源，而且在该发电能量不足的情况下，也使用由专门用作发电机的控制用电机2所储存的蓄电池中的能量，来驱动驱动用电机5，而且该驱动用电机5在制动器作用时，发挥再生发电机的作用。
上述控制用以及驱动用电机2、5由无刷直流电机构成，且具有：缠绕有线圈2a、5a的定子、和具有永磁铁的转子，在该电机2、5中，较多地使用由合成树脂构成的绝缘部件，特别是在线圈2a、5a上涂敷有清漆等绝缘材料。
在上述混合动力驱动装置中，装配有由阀体10等构成的油压回路装置，在该油压回路装置中，虽然具有对低速制动器、高速制动器等的液压伺服的液压进行控制的液压油用控制部、和对各需要润滑部位供给润滑油的润滑油供给部，但图1中，表示润滑油供给部。
利用基于上述混合动力驱动装置1的驱动而产生的电动油泵16的动作，储存于油盘9内的机油，从滤油器11中被吸入，并通过阀体10内的润滑油调压阀被调压。该被调压后的润滑油，经由油路12、13被供给到控制用电机2及驱动用电机5中，而对这些电机2、5进行润滑的同时进行冷却。特别是电机2、5的线圈2a、5a，容易发热，需要利用充足的润滑油来冷却。另一方面，润滑油还被供给到作为中心旋转轴的中心油孔，并被引导给动力分配用行星齿轮机构3以及变速装置6，而对这些行星齿轮以及制动器等进行润滑。接着，对上述电机2、5及动力分配用行星齿轮机构3、变速装置进行润滑/冷却后的润滑油，沿着箱体7的底面流动，而从连通口17、17回流至油盘9内。
图2是将电机箱体部72以及油盘9部分予以切除一部分的侧视图，图中左侧是动力分配用行星齿轮3机构(前、发动机)侧，图中右侧是变速装置6(后)侧。在电机箱体部72中，形成有多个用于冷却/润滑驱动用电机5的油路13，在其下部配置有阀体10，该阀体中形成有多个阀孔20a、20b、20c、20d、20e、20f及油路。此外，图中21是用于防止液压震动的减震用的孔，另外阀孔20e是用于调整液压的调压阀用的，20g是其连接器。另外，一些阀孔表示为用螺丝关闭，另一些阀孔表示未关闭。
在上述阀体10的下方，与阀体10隔着狭小间隙即规定间隙来配置有滤油器11。该滤油器11，其上侧是由金属或合成树脂构成的护罩11a，在该护罩的下面固定安装有由无纺织布等构成的滤油器部11b。从该滤油器11的空间延伸有吸入孔22，该吸入孔22与油泵16以及调节器阀连通。
图3是表示阀体10的下部10a的剖视图，图中右侧为前(发动机)侧，左侧为后侧。在下部10a中，形成有上述的阀孔20a、20b、20c、20d、20e、20f，在阀孔20c、20d、20e部分形成有排油室24c、24d、24e。该排油室与各阀的排油口连通，并排出从各阀的排油口流出的机油。
在排油室24c、24d部分，以包围各阀孔20c、20d的方式，下部10a的下壁面23呈凸出状，并且与这些凸出部23a、23b邻接地形成有沿各阀孔20c、20d向上方突出的壁部23c、23d，且壁部23c、23d延伸至与阀孔20c、20d的上端a、b大致相同高度。而且，在从各阀孔20c、20d向前后方向(与阀孔的轴向交叉的方向)偏移的位置，形成有排油孔25c、25d。各排油孔25c、25d由与上述壁部23c、23d连续地延伸的隆起面26c、26d和下部10a的隔壁面27、27形成，并向下方延伸成烟筒状，且其下端开口部e、f隔着约3mm左右的狭小间隙g(参照图2)与滤油器的护罩11a上面相面对。此外，在具有上述偏移的排油孔25c、26c的阀孔20c、20d中装配有阀，该阀在通常状态(初始状态)下，排油口处于开启状态，当在排油室24c、24d内有异物漂浮时，就会从排油口侵入而容易产生阀卡住。
另一方面，阀孔20e的排油室24e，在形成阀孔20e的下部10a的凸出部23e的顶部部分也即在阀孔20e的正下方形成有排油孔25e。该排油孔25e，虽然是以往的技术涉及的排油孔，但装配在该阀孔20e的阀在非动作时(通常状态、初始状态)，由滑阀关闭其排油口，例如即使漂浮在机油中的树脂片等异物，从该正下方的排油孔25e侵入到排油室24e中，通常，由于阀的排油口处于关闭状态，所以不会从排油口侵入到滑阀，产生阀卡住的可能性较少。
下面，对本实施方式的作用进行说明。在混合动力驱动装置1中，对控制用电机2、动力分配用行星齿轮机构3、驱动用电机5及变速装置6进行润滑/冷却了的润滑油，从连通口17、17回流至油盘9内。在油盘9的机油中，虽然混入有由齿轮等的磨损产生的金属屑以及由电机的绝缘物片构成的树脂片等异物，但金属屑会因比重而沉入到油盘9的底面。而树脂片、特别是在线圈2a、5a上涂敷的清漆的剥离片，则形成为膜状，容易在机油中漂浮，另外在大型的驱动用电机5中，线圈5a的表面积也较大，而且发热量也较大，因此需要供给大量的冷却用润滑油，其结果，导致清漆的剥离较多，且包括该剥离树脂膜片的机油经过连通口17直接回流至位于电机箱体部72的正下方的油盘9中。
该油盘9内的机油，虽然漂浮有树脂片，但首先，具有排油孔的阀体10的下面被配置成与滤油器11的护罩11a上面接近，因此树脂片，特别是较大面积的清漆剥离树脂膜，很难进入到上述阀体10与滤油器11之间的间隙g部分中，这样，首先将较大的漂浮树脂片向排油孔的侵入由上述间隙g来排除。
接着，即使混杂有漂浮树脂片的机油侵入到上述间隙部分中，但由于将排油孔25c、25d从阀孔20c、20d偏移来配置，所以即使该混入有漂浮异物的机油侵入到排油孔25c、25d中，也不会立即从阀的排油口侵入到滑阀部分，而利用基于阀的切换而从排油口流出的排出油，则在排油孔部分或其附近的排油室中漂浮着的漂浮异物从排油孔中被排出。
而且，上述排油孔25c、25d因壁面隆起部26c、26d以及隔壁27而具有烟筒状的长度方向空间，当阀处于非排油状态即排油室24c、24d中没有机油的吸入及排出的滞留状态时，外部的漂浮片经过上述长的排油孔而侵入到排油室的可能性极小，例如即使漂浮片侵入直至到达长排油孔的中间部，也会因为基于对阀的排油室的切换所产生的、排出油向排油室24c、24d的排出，而与机油一起从排油孔25c、25d被排出到外部。
由此，即使清漆剥离片等树脂异物混入到机油中，该异物也不会从排油孔25c、25d以及排油室24c、24d侵入，而产生阀卡住。
图4是基于另一个实施方式的下阀体10a的仰视图，图中的左右为前后方向。图中23h，是形成在阀体下壁面23上的阀孔形成用的凸出部。形成有：偏移于位于该凸出部23h的阀孔，并与前面的排油孔25c、25d相同的排油孔25h。该排油孔25h由截面矩形状构成，而该截面矩形状是用从上述凸出部23h的末端部的壁面向下方隆起的隆起部26h、和隔壁27的隆起部27a及左右的侧面部27c、27d来形成的。该排油孔25h中，车辆前后方向的壁面即隆起部26h、27a被较高地构成，而左右的侧面壁27c、27d被构成为低于上述隆起部。由此，在排油孔25h的开口i部分，在前后方向上形成有由壁面26h、27a的较高部分构成的前后堤部j、k，而且这些堤部被配置成其上面与滤油器护罩11a的上面抵接或接近，其结果，由较低的侧面壁27c、27d形成有在左右方向上连通的连通路30。
在搭载有混合动力驱动装置1的车辆的起动以及停车时，油盘9内的机油，因其惯性以及车体倾斜而向前后方向移动。随着该机油的移动，侵入到该机油中的漂浮异物也会容易侵入到排油孔25h中，但在上述排油孔25h的开口i部分的前后形成有由前后隆起部构成的堤部j、k，而防止随着上述机油的移动而产生的漂浮异物直接侵入到排油孔25h中的情况。另一方面，从排油室流出的机油的流通可以经由左右方向上连通的连通路30并以快速的响应来进行。
此外，图4中，25i、25j也是排油孔。另外，上述排油孔25h中的前后堤部j、k，虽然在上述实施方式中形成在阀体10的壁面上，但也可以将其形成在相对的部分的滤油器护罩11a上。另外，本排油孔并不局限于混合动力驱动装置的油压回路装置，也可以通用于自动变速器的油压回路装置等其它油压回路装置中。另外，虽然上述实施方式应用在具有控制用电机、动力分配用行星齿轮机构、驱动用电机以及变速装置的混合动力驱动装置中，但并不局限于此，也可以同样地应用在具有电机以及变速装置的混合动力驱动装置中。
产业上的可利用性
本发明涉及的油压回路装置，可使用在搭载于轿车、卡车、公共汽车、农机等上的自动变速器、混合动力驱动装置等中，特别适合使用在如利用机油来冷却电机的混合动力驱动装置那样，树脂片等异物容易混杂在机油中的装置中，并适用于需要防止异物从排油孔中侵入的装置。

Claims (13)

1.一种油压回路装置，具备在箱体下部的油盘内配置的阀体，且该阀体具有：装配有阀的阀孔；与上述阀的排油口连通的排油室；将该排油室与外部连通的排油孔，该油压回路装置的特征在于，
形成上述排油室的下壁面，以包围上述阀孔的下方的方式凸出，且还具有沿上述阀孔向上方突出的壁部，
上述排油孔被配置在隔着上述壁部而从上述阀孔偏移的位置上，而且由在上下方向上延伸的壁面形成。
2.根据权利要求1所述的油压回路装置，其特征在于，上述排油孔具有烟筒状的较长的空间。
3.根据权利要求2所述的油压回路装置，其特征在于，上述排油孔的壁面，延伸至与该排油室的阀孔上端大致相同高度。
4.根据权利要求1至3的任意一项所述的油压回路装置，其特征在于，在上述油盘内装配有滤油器，且将该滤油器的护罩上面与上述排油孔的开口接近地配置。
5.根据权利要求1至3的任意一项所述的油压回路装置，其特征在于，在上述排油孔的开口的前后方向上形成堤部，且利用这些前后的堤部的间隔来形成在左右方向上连通的连通路。
6.根据权利要求4所述的油压回路装置，其特征在于，在上述排油孔的开口的前后方向上形成堤部，且利用这些前后的堤部的间隔来形成在左右方向上连通的连通路。
7.根据权利要求1至3的任意一项所述的油压回路装置，其特征在于，上述阀在通常状态下，排油口呈连通。
8.根据权利要求4所述的油压回路装置，其特征在于，上述阀在通常状态下，排油口呈连通。
9.根据权利要求5所述的油压回路装置，其特征在于，上述阀在通常状态下，排油口呈连通。
10.根据权利要求6所述的油压回路装置，其特征在于，上述阀在通常状态下，排油口呈连通。
11.一种混合动力驱动装置，其特征在于，具备电机、变速装置和权利要求1至10的任意一项所述的油压回路装置，将上述电机及变速装置容纳于箱体内，而且在该箱体的下部的油盘内配置上述阀体，将被该阀体内的调压阀调压后的润滑油，供给到上述电机并冷却该电机后，回流至上述油盘中。
12.一种混合动力驱动装置，具备控制用电机、动力分配用行星齿轮机构、驱动用电机、及变速装置，
上述动力分配用行星齿轮机构具有：传递有来自内燃发动机的输出的第一元件、与上述控制用电机连通的第二元件、以及与输出轴连动的第三元件，
上述驱动用电机的输出经由上述变速装置传递到上述输出轴上，该混合动力驱动装置的特征在于，
具备权利要求1至10的任意一项所述的油压回路装置，
将上述控制用电机、动力分配用行星齿轮机构、驱动用电机及变速装置容纳于箱体内，而且在该箱体的下部的油盘内配置上述阀体，
将被该阀体内的调压阀调压后的润滑油，供给到上述控制用及驱动用电机并冷却这些电机后，回流至上述油盘中。
13.根据权利要求12所述的混合动力驱动装置，其特征在于，将上述控制用电机、动力分配用行星齿轮机构、驱动用电机、变速装置及输出轴配置在一轴上，且在容纳上述驱动用电机的电机箱体部的下部，配置上述油盘以及阀体。
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