公开(公告)号：US20180258935A1

公开(公告)日：2018-09-13

申请号：US15916344

申请日：2018-03-09

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Masato TSUKAHARA ,  Kazuhiro ONARA ,  Shigehiro KASHO ,  Tatsuya KOIDE

IPC: F04C29/06 ,  F16F15/02 ,  F04C18/02

CPC classification number: F04C29/06 ,  F04C18/02 ,  F04C18/0215 ,  F04C23/008 ,  F04C2240/807 ,  F04C2270/125 ,  F16F15/02

Abstract: An electrically-driven compressor is installed in an engine. Refrigerant is compressed with rotation of a rotating shaft in a compression unit. An electric motor is coupled to the rotating shaft and drives the compression unit through the rotating shaft. A housing accommodates the compression unit, the electric motor, and the motor drive circuit aligned in the listed order in the axial direction of the rotating shaft. The housing is internally provided with the discharge chamber through which the refrigerant compressed by the compression unit is discharged. The weight is attached to the housing and disposed in the discharge chamber in a manner that a resonance frequency of the electrically-driven compressor is shifted relative to a resonance frequency of the engine, the weight including a material having a specific gravity greater than a specific gravity of a constituent material of the housing.

公开(公告)号：US20170276136A1

公开(公告)日：2017-09-28

申请号：US15468518

申请日：2017-03-24

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Yusuke KINOSHITA ,  Tatsuya KOIDE ,  Junya YANO

IPC: F04C29/04 ,  F04B39/06 ,  F04B39/12 ,  F04C29/00 ,  F04C18/34 ,  F04C27/00 ,  F04C29/12 ,  F04B35/04 ,  F04C18/02

CPC classification number: F04C29/047 ,  F04B35/04 ,  F04B39/06 ,  F04B39/12 ,  F04B39/121 ,  F04C18/0215 ,  F04C18/34 ,  F04C27/00 ,  F04C29/0085 ,  F04C29/12 ,  F04C2240/30 ,  F04C2240/40

Abstract: A fluid machine includes a housing, an electric motor, a drive circuit that includes a heat-generating component and drives the electric motor, a cover that defines an accommodation chamber, which accommodates the drive circuit, with the housing, and a fastener that fastens the cover to the housing. The cover is configured to press the heat-generating component or a heat transfer member, to which heat of the heat-generating component is transferred, against the housing in a fastening direction of the fastener when fastened by the fastener. The fluid machine further includes a seal that is held between the first opposing surface of the housing and the second opposing surface of the cover in the direction intersecting the fastening direction of the fastener.

公开(公告)号：US20160032930A1

公开(公告)日：2016-02-04

申请号：US14813821

申请日：2015-07-30

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Yusuke KINOSHITA ,  Ken SUITOU ,  Tatsuya KOIDE ,  Akio FUJII

IPC: F04D25/06

CPC classification number: F04D25/0693 ,  F04B53/16 ,  F04B53/22 ,  F04C23/02 ,  F04C2240/30 ,  F04C2240/803 ,  F04C2240/808

Abstract: An electric compressor is provided to more securely suppress breakage of an electric component. An inverter cover forms an accommodation space. A bus bar constituting a portion of an electric circuit for driving an electric motor is accommodated in the accommodation space. The inverter cover has a rib projecting into the accommodation space. The bus bar is placed on the rib.

Abstract translation: 提供电动压缩机以更可靠地抑制电气部件的破损。 逆变器盖形成容纳空间。 构成用于驱动电动机的电路的一部分的母线容纳在容纳空间中。 逆变器盖具有突出到容纳空间中的肋。 母线放在肋条上。

公开(公告)号：US20180180046A1

公开(公告)日：2018-06-28

申请号：US15852984

申请日：2017-12-22

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Kenji MOMMA ,  Tatsuya KOIDE ,  Shingo ENAMI ,  Junya YANO ,  Yusuke KINOSHITA ,  Masato TSUKAHARA ,  Kazuhiro ONARA ,  Atsuhiro ISHIDA

IPC: F04C29/00

CPC classification number: F04C29/00 ,  B60H1/3226 ,  F01C21/10 ,  F04C18/0215 ,  F04C2210/26 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/808 ,  F04C2270/70

Abstract: An electric compressor includes a compression portion, an electric motor, a drive circuit, a housing having a cylindrical shape and accommodating the compression portion and the electric motor, a cover attached to the housing and cooperating with the housing to accommodate the drive circuit, and a protector. The protector is configured to protect the cover from an external force. The protector includes a fixing portion that is fixed to the housing and a protection portion that is formed in a plate-like shape. The protection portion is disposed to face and to be spaced from the cover. The protector extends in a diametrical direction of the housing. A plurality of recesses is formed in the protection portion toward the cover such that the protection portion projects toward the cover. The recesses extend in an extending direction of the protector.

公开(公告)号：US20160281698A1

公开(公告)日：2016-09-29

申请号：US15077361

申请日：2016-03-22

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Yusuke KINOSHITA ,  Ken SUITOU ,  Tatsuya KOIDE ,  Junya YANO

IPC: F04B35/04 ,  F04C29/00 ,  F04B39/12

CPC classification number: F04B35/04 ,  F01C21/10 ,  F04B39/121 ,  F04C18/0207 ,  F04C18/30 ,  F04C2240/808 ,  F05C2251/046

Abstract: An electric compressor includes a compression mechanism, an electric motor, an inverter, a housing, and a cover attached to the housing to accommodate the inverter between the cover and the housing. The cover is constituted of a metal frame portion and a resin portion covering the frame portion to surround surfaces of the frame portion.The frame portion has a plate-like portion and a peripheral wall portion extending from an outer peripheral edge of the plate-like portion toward the housing. The peripheral wall portion has concaves and convexes including at least one of a concave portion recessed in a thickness direction of the plate-like portion and a convex portion protruding in the thickness direction of the plate-like portion, at an end portion which is far from the plate-like portion. The resin portion is engaged with the concaves and convexes.

Abstract translation: 框架部分具有从板状部分的外周边缘向壳体延伸的板状部分和周壁部分。 周壁部具有凹部和凸部，该凹凸包括在板状部分的厚度方向上凹陷的凹部和在板状部分的厚度方向上突出的凸部中的至少一个， 从板状部分。 树脂部分与凹凸接合。

公开(公告)号：US20150357844A1

公开(公告)日：2015-12-10

申请号：US14731483

申请日：2015-06-05

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Tatsuya KOIDE ,  Takuro MIZUNO ,  Hiroshi FUKASAKU

IPC: H02J7/00 ,  H02P27/06

CPC classification number: F04C23/008 ,  F04B35/04 ,  F04B39/00 ,  F04B39/121 ,  F04C18/0215 ,  F04C2240/808 ,  H05K1/0254 ,  H05K2201/10015

Abstract: There is provided a vehicular electric compressor capable of discharging electric charges of a capacitor surely and quickly in the event of an impact. The vehicular electric compressor includes: a compressing unit; an electric motor for rotating the compressing unit; and a driving circuit for driving the electric motor. The driving circuit includes: a capacitor; a circuit board provided with an electrically discharging circuit for discharging electric charges accumulated in the capacitor; and a positive electrode interconnection and a negative electrode interconnection configured to electrically connect the capacitor and the circuit board to each other. The vehicular electric compressor further includes a conductive member configured to come into contact with the positive electrode interconnection and the negative electrode interconnection, which are connected to the capacitor, when the positive electrode interconnection and the negative electrode interconnection are moved upon application of external force to the capacitor.

Abstract translation: 提供了一种能够在发生冲击的情况下能够快速地放电电容器的车用电动压缩机。 车用电动压缩机包括：压缩单元; 用于使压缩单元旋转的电动机; 以及用于驱动电动机的驱动电路。 驱动电路包括：电容器; 电路板，设置有放电电路，用于放电蓄积在电容器中的电荷; 以及被配置为将电容器和电路板彼此电连接的正极互连和负极互连。 车辆用电动压缩机还包括：当正电极互连和负极互连在施加外力时移动时，导电构件被配置为与正电极互连和负电极互连接触，所述正电极互连和负电极互连连接到电容器 电容器。

公开(公告)号：US20150322948A1

公开(公告)日：2015-11-12

申请号：US14699238

申请日：2015-04-29

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Akio FUJII ,  Yusuke KINOSHITA ,  Kazuhiro KUROKI ,  Tatsuya KOIDE

IPC: F04C23/02 ,  F04C29/00 ,  F04C18/02

CPC classification number: F04B35/04 ,  F04C18/0215 ,  F04C23/02 ,  F04C29/0085 ,  H02K5/22 ,  H02K5/225 ,  H02K11/022

Abstract: An electric compressor includes a housing a compression mechanism, an electric motor and a motor driving circuit. The motor driving circuit includes a circuit board and an electronic component mounted on the circuit board. The electric compressor further includes a bus bar, a shield plate having a bolt hole and an intervening portion interposed between the bus bar and the shield plate. The bus bar, intervening portion and the shield plate are integrated by a resin member. A part of the intervening portion on a side thereof opposite from the shield plate and/or a part of the bus bar on a side thereof opposite from the shield plate is exposed without being covered with the resin member. A surface of the shield plate around the bolt hole on a side thereof opposite from the intervening portion is exposed without being covered with the resin member.

Abstract translation: 电动压缩机包括壳体，压缩机构，电动马达和马达驱动电路。 马达驱动电路包括安装在电路板上的电路板和电子部件。 电动压缩机还包括汇流条，具有螺栓孔的屏蔽板和介于汇流条和屏蔽板之间的中间部分。 母线，中间部分和屏蔽板由树脂部件一体化。 与屏蔽板相对的一侧的中间部分的一部分和/或其与屏蔽板相对的一侧上的汇流条的一部分被暴露而不被树脂部件覆盖。 屏蔽板周围的螺栓孔的与中间部分相反的一侧的表面暴露而不被树脂部件覆盖。

公开(公告)号：US20150159658A1

公开(公告)日：2015-06-11

申请号：US14558975

申请日：2014-12-03

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Junya YANO ,  Tsuyoshi YAMAGUCHI ,  Tatsuya KOIDE ,  Ken SUITOU ,  Yoshiki NAGATA

IPC: F04D15/02 ,  F04D13/06

CPC classification number: F04D15/0263 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/06 ,  F04C2270/19 ,  F04C2270/70 ,  F04D13/06 ,  H02P23/009 ,  H02P27/08 ,  H02P29/0241 ,  H02P29/68

Abstract: A motor-driven compressor includes an electric motor driven by a motor driver, which includes a switching element that converts DC voltage from a battery to AC voltage. A temperature detector detects the temperature of the switching element. A voltage detector detects DC voltage applied to the switching element from the battery. A control unit suspends the switching operation of the switching element when the detected temperature rises to a temperature threshold. The control unit reduces counter electromotive force generated by the electric motor. The controller changes the temperature threshold such that the temperature threshold gradually increases from when the detected DC voltage is the highest voltage in the applicable voltage range of the battery to when the detected DC voltage is the lowest voltage in the applicable voltage range.

Abstract translation: 电动压缩机包括由电动机驱动器驱动的电动机，其包括将来自电池的DC电压转换为AC电压的开关元件。 温度检测器检测开关元件的温度。 电压检测器检测从电池施加到开关元件的DC电压。 当检测到的温度升高到温度阈值时，控制单元暂停开关元件的切换操作。 控制单元减少由电动机产生的反电动势。 控制器改变温度阈值，使得当检测到的直流电压是电池的适用电压范围中的最高电压时，当检测到的直流电压是适用电压范围内的最低电压时，温度阈值逐渐增加。

公开(公告)号：US20150159655A1

公开(公告)日：2015-06-11

申请号：US14558811

申请日：2014-12-03

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Junya YANO ,  Tsuyoshi YAMAGUCHI ,  Tatsuya KOIDE ,  Ken SUITOU ,  Yoshiki NAGATA

IPC: F04D13/06 ,  F04D15/02

CPC classification number: F04D13/06 ,  F04C18/06 ,  F04C2240/808 ,  F04C2240/81 ,  F04C2270/10 ,  F04C2270/19 ,  F04D15/0263

Abstract: A motor-driven compressor includes an electric motor driven by a motor driver, which includes a switching element that converts DC voltage from a battery to AC voltage. A control unit controls the switching operation of the switching element. A temperature detector detects the temperature of the switching element. The control unit suspends the switching operation of the switching element when the temperature detected by the temperature detector rises to a temperature threshold. The temperature threshold includes a first temperature threshold, corresponding to a withstand temperature of the switching element, and a second temperature threshold, which is higher than the first temperature threshold. The control unit switches the temperature threshold from the first temperature threshold to the second temperature threshold when the control unit activates a field weakening control that reduces counter electromotive force generated by the electric motor.

Abstract translation: 电动压缩机包括由电动机驱动器驱动的电动机，其包括将来自电池的DC电压转换为AC电压的开关元件。 控制单元控制开关元件的开关动作。 温度检测器检测开关元件的温度。 当由温度检测器检测到的温度升高到温度阈值时，控制单元暂停开关元件的开关操作。 温度阈值包括对应于开关元件的耐受温度的第一温度阈值和高于第一温度阈值的第二温度阈值。 当控制单元激活减弱由电动机产生的反电动势的弱磁控制时，控制单元将温度阈值从第一温度阈值切换到第二温度阈值。

公开(公告)号：US20150159651A1

公开(公告)日：2015-06-11

申请号：US14558881

申请日：2014-12-03

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Junya YANO ,  Tsuyoshi YAMAGUCHI ,  Tatsuya KOIDE ,  Ken SUITOU ,  Yoshiki NAGATA

IPC: F04C28/28 ,  F04C18/02 ,  F04C28/08

CPC classification number: F04C28/28 ,  F04C18/0207 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/08 ,  F04C2240/808 ,  F04C2240/81 ,  F04C2270/10 ,  F04C2270/19

Abstract: A motor-driven compressor includes an electric motor driven by a motor driver, which includes a switching element that converts DC voltage from a battery to AC voltage. A control unit controls the switching operation of the switching element. A temperature detector detects the temperature of the switching element. A voltage detector detects DC voltage applied to the switching element from the battery. The control unit suspends the switching operation of the switching element when the temperature detected by the temperature detector rises to a predetermined temperature threshold. The control unit also reduces counter electromotive force generated by the electric motor. The temperature threshold includes a first temperature threshold, corresponding to a withstand temperature of the switching element, and a second temperature threshold, which is higher than the first temperature threshold. The control unit switches the temperature threshold between the first and second temperature thresholds.

Abstract translation: 电动压缩机包括由电动机驱动器驱动的电动机，其包括将来自电池的DC电压转换为AC电压的开关元件。 控制单元控制开关元件的开关动作。 温度检测器检测开关元件的温度。 电压检测器检测从电池施加到开关元件的DC电压。 当由温度检测器检测到的温度上升到预定温度阈值时，控制单元暂停开关元件的切换操作。 控制单元还减少了电动马达产生的反电动势。 温度阈值包括对应于开关元件的耐受温度的第一温度阈值和高于第一温度阈值的第二温度阈值。 控制单元切换第一和第二温度阈值之间的温度阈值。