公开(公告)号：US20200313376A1

公开(公告)日：2020-10-01

申请号：US16836318

申请日：2020-03-31

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： H01R39/02 ,  H01R39/04 ,  H01R39/22 ,  H01R39/26 ,  H02K13/10 ,  C04B35/52 ,  C22C32/00

摘要： A DC motor is provided that can suppress a commutator from wearing. A DC motor including a commutator formed of copper or a copper alloy of 99% or more copper, and a brush pressed against and in contact with the commutator, wherein the brush is composed of a sintered compact including graphite and copper powder, hard compound particles higher in hardness than any of the copper or the copper alloy and the graphite or the copper powder are contained in at least one of the commutator and the brush and are scattered on or near a contact surface of the commutator with the brush at least during use.

公开(公告)号：US20180149130A1

公开(公告)日：2018-05-31

申请号：US15821239

申请日：2017-11-22

申请人： DENSO CORPORATION

发明人： Tatsuya FUJITA ,  Takashi HIRABAYASHI ,  Tasuku YAMADA ,  Mitsuhiro MURATA

IPC分类号： F02N15/06

CPC分类号： F02N15/063 ,  F02N11/00 ,  F02N15/006 ,  F02N15/022 ,  F02N15/065 ,  F02N15/067 ,  F02N2015/061

摘要： A starter for an internal combustion engine includes a rotating shaft formed with a helical spline on an outer periphery thereof and which rotates by a rotation of a motor, a pinion gear helically splined to the rotating shaft and movable in an axial direction of the rotating shaft along a tooth surface of the helical spline, a lever receiving member disposed opposing an end surface in an axial direction of the pinion gear, moved by receiving an axial pushing force by a pushing member, and causing the pinion gear to engage with a ring gear of the internal combustion engine by a movement thereof, and a buffer member for restricting a movement of the pinion gear in a rotational direction when the pinion gear moves along the teeth surface of the helical spline.

公开(公告)号：US20140311436A1

公开(公告)日：2014-10-23

申请号：US14257495

申请日：2014-04-21

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： F02N11/00

CPC分类号： F02N11/00 ,  F02N11/0851 ,  F02N11/087 ,  F02N15/067 ,  H01H50/543 ,  H01H51/065

摘要： An electromagnetic solenoid that controls a motor current of a starter includes: a first switch including a pair of first fixed contacts and a first movable contact, intermitting the motor current; a suppression resistor that suppresses the motor current; a second switch including a pair of second fixed contacts and a second movable contact, making a short circuit path to bypass the suppression resistor; a regulation member being driven by a sub solenoid, regulating the second switch being closed and releasing the second switch from being regulated after predetermined time elapses when a plunger is pulled by a main electromagnet. The regulation member is disposed between a regulated position and a released position to regulate the second switch.

摘要翻译： 控制起动机的电动机电流的电磁螺线管包括：第一开关，包括一对第一固定触点和第一可动触点，其间隔电动机电流; 抑制电动机电流的抑制电阻; 第二开关，包括一对第二固定触点和第二可动触点，使短路路径旁路抑制电阻; 调节构件由副螺线管驱动，当柱塞被主电磁体拉动时，调节第二开关被关闭并释放第二开关以在经过预定时间之后被调节。 调节构件设置在调节位置和释放位置之间以调节第二开关。

公开(公告)号：US20190305652A1

公开(公告)日：2019-10-03

申请号：US16361922

申请日：2019-03-22

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI ,  Taro FUKUDA

IPC分类号： H02K13/10 ,  H01R39/02 ,  H01R39/04 ,  H01R39/22 ,  F02N11/00

摘要： A starter includes a motor configured with a direct current motor. The direct current motor has a brush and a commutator. The brush is a sintered material formed of graphite and a copper powder. The commutator is formed of either copper or a copper alloy that has a copper content of 99% or more. A surface of is a sliding portion of the commutator which has sliding movement with the brush is provided with a graphite cover-layer that contains graphite as a main component. The graphite cover-layer contains a hard compound which has a Vickers hardness higher than 10 GPa and a metal sulfide solid lubricant.

公开(公告)号：US20190097487A1

公开(公告)日：2019-03-28

申请号：US16205739

申请日：2018-11-30

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： H02K5/14 ,  H01R39/38

CPC分类号： H02K5/148 ,  H01R39/385

摘要： In order to facilitate the assembly of the brush assembly and to improve the productivity, the brush device includes a positive side brush subassembly having a positive side brush for feeding a commutator, a positive side brush holder for holding the positive side brush, and a positive side plate to which the positive side brush holder is attached, and a negative side brush subassembly having a negative side brush for feeding the commutator, a negative side brush holder for holding the negative side brush, and a negative side plate to which the negative side brush holder is attached. The positive side brush subassembly and the negative side brush subassembly are combined with each other.

公开(公告)号：US20160268865A1

公开(公告)日：2016-09-15

申请号：US15062464

申请日：2016-03-07

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： H02K5/14

CPC分类号： H02K5/148 ,  H01R39/385

摘要： A first brush holder is assembled to a core-side connection plate by inserting a slit insertion portion into a slit from an outer circumferential side of the core-side connection plate, and a radial outside position of the first brush holder to the core-side connection plate is regulated by both sides in a circumferential direction of a first slit being inserted into a pair of guiding grooves. A radial outside position of the brush holder is regulated by being fixed to a counter-core-side connection plate by press-fitting a convex portion provided on a counter-core-side of the first brush holder into a second slit of a counter-core-side connection plate. A second brush holder is assembled to the counter-core-side connection plate from an outer circumferential side of the counter-core-side connection plate, and a radial outside position is regulated by the core-side connection plate.

摘要翻译： 通过从芯侧连接板的外周侧将缝隙插入部分插入狭缝中并将第一电刷架的径向外侧位置插入芯侧，将第一电刷架组装到芯侧连接板 连接板由插入一对导向槽的第一狭缝的圆周方向的两侧调节。 电刷架的径向外部位置通过将设置在第一电刷架的反铁心侧的凸部压配合到反向芯侧侧连接板的第二狭缝中而被固定在反铁心侧连接板上， 芯侧连接板。 第二电刷架从反铁心侧连接板的外周侧组装到反铁心侧连接板，并且径向外侧位置由铁芯侧连接板调节。

公开(公告)号：US20140311434A1

公开(公告)日：2014-10-23

申请号：US14256362

申请日：2014-04-18

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： F02N11/08

CPC分类号： F02N11/087 ,  F02N11/0825 ,  F02N11/0851 ,  F02N11/108 ,  F02N15/067 ,  F02N2200/14 ,  Y02T10/48

摘要： An electromagnetic solenoid that controls a motor current of a starter includes: a first switch including first fixed contacts and a first movable contact, intermitting the motor current; a suppression resistor that suppresses the motor current; a second switch including second fixed contacts and a second movable contact, making a short circuit path to bypass the suppression resistor; a first regulation member being driven by a first solenoid, regulating the first switch being closed and releasing the first switch from being regulated after predetermined time elapses; and a second regulation member being driven by a second solenoid, regulating the second switch being closed and releasing the second switch from being regulated after predetermined time elapses when the first switch is released from regulated state. The first and second regulation members are disposed between a regulated position and a released position to regulate the first and second switches.

摘要翻译： 控制起动机的电动机电流的电磁螺线管包括：第一开关，包括第一固定触点和第一可动触点，间隔电动机电流; 抑制电动机电流的抑制电阻; 第二开关，包括第二固定触点和第二可动触点，使短路路径绕过抑制电阻; 第一调节构件由第一螺线管驱动，将第一开关调节为闭合，并且在预定时间过去之后释放第一开关以进行调节; 第二调节构件由第二螺线管驱动，当第一开关从调节状态释放时，调节第二开关被关闭并释放第二开关以在经过预定时间之后被调节。 第一和第二调节构件设置在调节位置和释放位置之间以调节第一和第二开关。

公开(公告)号：US20170005540A1

公开(公告)日：2017-01-05

申请号：US15201827

申请日：2016-07-05

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： H02K5/14 ,  H02K13/14

CPC分类号： H02K5/143 ,  H02K5/225 ,  H02K7/20 ,  H02K11/40

摘要： A positive connection plate of a DC motor includes a fitting groove to enable assembling a specific brush holder thereto. The specific brush holder includes a convex part that fits in the fitting groove and a stepped surface having a step at a radially outer side of the convex part, and located at the opposite-core side of its armature from a core-side end surface of the convex part. A space existing in an axial stepped area which is located at the core side from the stepped surface and in which the step is formed is a stepped space. A drawing member is drawn from a position which circumferentially overlaps with the specific brush holder to the outside of a motor case, and is disposed so as to overlap with the stepped space in the axial direction.

摘要翻译： 直流电动机的正极连接板包括能够将特定的电刷架组装到其上的配合槽。 具体的电刷架包括嵌合在嵌合槽中的凸部和在凸部的径向外侧具有台阶的阶梯面，并且位于电枢的与铁心侧端面相反的芯侧 凸部。 位于从台阶表面的芯侧的轴向阶梯区域中形成台阶的空间是台阶空间。 拉拔构件从与特定的电刷架周向重叠的位置到电动机壳体的外部被拉出，并且设置成与轴向上的台阶空间重叠。

公开(公告)号：US20160268751A1

公开(公告)日：2016-09-15

申请号：US14980960

申请日：2015-12-28

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： H01R39/38 ,  H02K13/00 ,  H02K11/40

CPC分类号： H01R39/381 ,  H01R39/38 ,  H01R39/41 ,  H02K5/148 ,  H02K23/02 ,  H02K23/08

摘要： A brush holder has a core side position regulator engaged with a first connection plate to regulate a relative position. The core side position regulator has a projection part projected toward an armature core in the axial direction, and a fitting groove portion defined on both sides of the projection part in a circumferential direction. The relative position in the circumferential direction is regulated by an engagement between the projection part and a slit of the first connection plate. The relative position in the axial direction is regulated by an engagement between sides of the slit and the fitting groove portion. A width of the projection part in the circumferential direction is larger than a width of a brush in the circumferential direction.

摘要翻译： 电刷架具有与第一连接板接合以调节相对位置的芯侧位置调节器。 芯侧位置调节器具有沿轴向朝向电枢铁心突出的突出部，以及沿周向限定在突出部的两侧的嵌合槽部。 圆周方向上的相对位置由第一连接板的突出部和狭缝之间的接合来调节。 轴向的相对位置通过狭缝的侧面和配合槽部之间的接合来调节。 突起部在圆周方向上的宽度大于刷沿圆周方向的宽度。

公开(公告)号：US20150354523A1

公开(公告)日：2015-12-10

申请号：US14726891

申请日：2015-06-01

申请人： DENSO CORPORATION

发明人： Takashi HIRABAYASHI

IPC分类号： F02N11/08

CPC分类号： F02N11/087 ,  F02N11/0851 ,  F02N15/023 ,  F02N15/046 ,  F02N15/067 ,  F02N2015/061 ,  F02N2200/023 ,  F02N2200/044 ,  F02N2300/102 ,  F02N2300/104 ,  F02N2300/2011

摘要： An engine starting apparatus is provided which is equipped with a starter, an inrush current reducer, and a starter mode switch. The inrush current reducer works to reduce an inrush current flowing through an electric motor installed in the starter when the electric motor is energized. The starter mode switch works to change a starter characteristic that is an output characteristic of the starter continuously or selectively at least between a low-torque/high-speed mode and a high-torque/low-speed mode. The starter mode switch places the starter in the high-torque/low-speed mode at least at a time when a piston of the engine is passing a top dead center, and the engine friction has been just maximized for the first time after the starter is actuated to crank the engine. This shortens a period of time required to start up the engine without sacrificing beneficial effects offered by the inrush current reducer.

摘要翻译： 提供一种发动机启动装置，其配备有起动器，浪涌电流减少器和起动器模式开关。 当电动机通电时，浪涌电流减小器用于减少流过安装在起动机中的电动机的浪涌电流。 起动器模式开关用于至少在低扭矩/高速模式和高扭矩/低速模式之间连续或选择性地改变作为起动器的输出特性的起动器特性。 起动器模式开关至少在发动机的活塞通过上止点的时候将起动器置于高扭矩/低速模式中，并且发动机摩擦在启动器之后首次被最大化 被启动以起动发动机。 这缩短了起动发动机所需的时间，而不牺牲浪涌电流减速器提供的有益效果。