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1. 发明公开

EP3176335A1 HYBRID-TYPE WORK MACHINE 有权
标题翻译：混合型汽车
公开(公告)号：EP3176335A1
公开(公告)日：2017-06-07
申请号：EP15826830.0
申请日：2015-05-13
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OTA Yasunori , OJIMA Mitsugu , EGAWA Shuji , AZUMA Yuji
IPC分类号： E02F9/20 , B60K1/00 , B60K1/04 , B60K5/04 , B60K6/24 , B60K6/28 , B60K6/442 , B60K11/04 , E02F9/00
CPC分类号： E02F9/2075 , B60K1/04 , B60K5/04 , B60K6/24 , B60K6/26 , B60K6/28 , B60K6/40 , B60K6/442 , B60K7/0015 , B60K11/04 , B60K11/06 , B60K17/10 , B60K17/14 , B60K2001/005 , B60K2001/0405 , B60K2006/266 , B60L1/02 , B60L15/007 , B60L50/51 , B60L58/26 , B60L2200/40 , B60L2210/40 , B60L2220/42 , B60L2240/525 , B60L2240/545 , B60Y2200/412 , B60Y2200/92 , E02F9/0858 , E02F9/0866 , E02F9/18 , E02F9/2095 , Y02T10/645 , Y02T10/7005 , Y02T10/705 , Y02T10/7241 , Y10S903/951
摘要： There are provided an electric motor (12) that is driven by an engine (8) to generate power or assists in a drive of the engine (8) by supply of power thereto, a heat exchanger (13) to which cooling air is supplied by a cooling fan (8A), a heat exchanger upstream room (28) positioned upstream of the heat exchanger (13) in a flow direction of the cooling air supplied to the heat exchanger (13), an electricity storage device (30) that stores power or discharges the power therein, and an inverter device (34) for controlling an operation of the electric motor (12). Besides, a radiator (42) for electricity storage device that cools the electricity storage device (30) and a radiator (46) for inverter that cools the inverter device (34) are separately provided to be independent from each other, and the radiator (42) for electricity storage device and the radiator (46) for inverter are arranged in parallel between the heat exchanger (13) and the electricity storage device (30) in the heat exchanger upstream room (28).
摘要翻译：设置有由发动机（8）驱动以通过向其供应动力来发电或辅助发动机（8）的驱动的电动机（12），供应冷却空气的热交换器（13）通过冷却风扇（8A），在供给到热交换器（13）的冷却空气的流动方向上位于热交换器（13）上游的热交换器上游室（28），蓄电装置（30）存储电力或放电，以及用于控制电动机（12）的操作的逆变器装置（34）。此外，冷却电力存储装置（30）的蓄电装置用散热器（42）和冷却逆变器装置（34）的逆变器用散热器（46）分别设置为彼此独立，散热器 42）和用于逆变器的散热器（46）并联设置在热交换器上游室（28）中的热交换器（13）和蓄电装置（30）之间。

2. 发明公开

EP3989424A1 WORK MACHINE 审中-公开
公开(公告)号：EP3989424A1
公开(公告)日：2022-04-27
申请号：EP20868052.0
申请日：2020-09-02
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： WATANABE Akira , OTA Yasunori , IMAI Yusuke , YANO Manabu
IPC分类号： H02M3/00 , E02F9/20 , H02J7/00 , H02M7/48
摘要： A work machine includes: a controller; a first electrical circuit provided with a first power supply that supplies power to the controller; an electric drive source necessary for operating the work machine; and a second electrical circuit provided with a second power supply that supplies power to the electric drive source. The work machine further includes: a capacitor provided to the second electrical circuit; a first precharge device that performs precharge of the capacitor by using power of the first power supply; and a second precharge device that performs precharge of the capacitor by using power of the second power supply. The controller performs precharge by using one of the precharge devices when it is determined that precharge by using the other one of the precharge devices is impossible.

3. 发明授权

EP2711468B1 CONSTRUCTION MACHINE 有权
标题翻译：施工机械
公开(公告)号：EP2711468B1
公开(公告)日：2017-03-08
申请号：EP12785497.4
申请日：2012-05-14
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： SATAKE Hidetoshi , KATO Shinji , EGAWA Shuji , HIROKI Takenori , WATANABE Toshihiko , OTA Yasunori , OJIMA Mitsugu
IPC分类号： E02F9/00 , E02F9/08 , H01R13/58
CPC分类号： E02F9/0866 , E02F3/3654 , E02F9/0858 , H01R13/6392 , H01R33/975

4. 发明公开

EP2568086A1 ELECTRIC WORK VEHICLE 有权
标题翻译： ELEKTRISCHES NUTZFAHRZEUG
公开(公告)号：EP2568086A1
公开(公告)日：2013-03-13
申请号：EP11809700.5
申请日：2011-07-21
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OKUMURA Shinya , OJIMA Mitsugu , OTA Yasunori , ISHIDA Toshihiko , HIROKI Takenori
IPC分类号： E02F9/08 , E02F9/20
CPC分类号： E02F9/08 , B60L2200/40 , B60L2210/40 , B60L2270/145 , E02F9/0858 , E02F9/123 , E02F9/20 , E02F9/2025 , E02F9/207 , E02F9/2075 , E02F9/2095 , H01L2924/00 , H01L2924/0002 , Y02T10/7241
摘要： [Problem] Provided is an electric work vehicle in which the length of a high-tension cable connecting an electric motor included in a slewing motor with an inverter for controlling the electric motor can be set to be comparatively short.
[Means for Resolution] The invention is configured in such a manner that a region on a main frame 1 is divided into three regions consisting of a center region S, a first side region L, and a second side region R, by means of a first vertical rib 1a and a second vertical rib 1b, a slewing hydraulic motor 8 and a slew assist electric motor 21, which constitute the slewing motor, are disposed in the center region S, and an inverter 22 for controlling the slew assist electric motor 21 is disposed in a position near the second vertical rib 1b in a second tool chamber 13 provided in the second side region R, i.e. the inverter 22 is disposed in a position close to the slew assist electric motor 21.
摘要翻译： [问题]提供一种电动作业车辆，其中连接包括在回转电动机中的电动机的高压电缆与控制电动机的逆变器的长度可以设置得相对较短。 [解决方法]本发明以这样的方式配置，即主框架1上的区域被分为由中心区域S，第一侧面区域L和第二侧面区域R构成的三个区域，借助于构成回转电动机的第一纵肋1a和第二纵肋1b，回转液压马达8和回转辅助电动机21设置在中心区域S中，以及用于控制回转电动机21的逆变器22 设置在设置在第二侧区域R中的第二工具室13中的靠近第二纵肋1b的位置，即逆变器22设置在靠近回转辅助电动机21的位置。

5. 发明授权

EP3176334B1 HYBRID-TYPE WORK MACHINE 有权
公开(公告)号：EP3176334B1
公开(公告)日：2020-01-01
申请号：EP15827955.4
申请日：2015-07-13
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OTA Yasunori , OJIMA Mitsugu , EGAWA Shuji , AZUMA Yuji
IPC分类号： E02F9/00 , B60K6/40 , B60K6/485 , B60K11/04 , E02F9/20

6. 发明授权

EP3176335B1 HYBRID-TYPE WORK MACHINE 有权
公开(公告)号：EP3176335B1
公开(公告)日：2019-07-10
申请号：EP15826830.0
申请日：2015-05-13
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OTA Yasunori , OJIMA Mitsugu , EGAWA Shuji , AZUMA Yuji
IPC分类号： E02F9/20 , B60K1/00 , B60K1/04 , B60K5/04 , B60K6/24 , B60K6/28 , B60K6/442 , B60K11/04 , E02F9/00

7. 发明公开

EP2711468A1 CONSTRUCTION MACHINE 有权
标题翻译： BAUMASCHINE
公开(公告)号：EP2711468A1
公开(公告)日：2014-03-26
申请号：EP12785497.4
申请日：2012-05-14
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： SATAKE Hidetoshi , KATO Shinji , EGAWA Shuji , HIROKI Takenori , WATANABE Toshihiko , OTA Yasunori , OJIMA Mitsugu
IPC分类号： E02F9/00 , E02F9/08 , H01R13/58
CPC分类号： E02F9/0866 , E02F3/3654 , E02F9/0858 , H01R13/6392 , H01R33/975
摘要： An electric motor (33) that is fixed to a revolving frame (5), an electrical equipment (36) that is supported by the revolving frame (5) by using a vibration absorption mount (38), and a cable (46) for establishing a connection between the electric motor (33) and the electrical equipment (36) are provided. A connector mounting member (39) having an outer shape smaller than that of a box (37) is provided in the box (37) of the electrical equipment (36), and an equipment-side connector (40) is provided in the connector mounting member (39). A cable-side connector (46A) of the cable (46) is connected to the equipment-side connector (40), and a cable end portion of the cable (46) is fixed to the box (37) by a clamp member (50). As a result, the vibration that is transmitted to the cable (46) can be matched with the vibration that is transmitted to the cable-side connector (46A).
摘要翻译： 1.一种固定在旋转框架（5）上的电动机（33），通过使用振动吸收装置（38）由所述回转框架（5）支撑的电气设备（36），以及用于设置电动机（33）和电气设备（36）之间的连接。在电气设备（36）的盒（37）中设置有外形小于盒（37）的外形的连接器安装构件（39），并且在连接器中设置设备侧连接器安装构件（39）。电缆（46）的电缆侧连接器（46A）连接到设备侧连接器（40），并且电缆（46）的电缆端部分通过夹紧件固定到箱体（37） 50）。结果，传递到电缆（46）的振动可以与传输到电缆侧连接器（46A）的振动相匹配。

8. 发明公开

EP2660395A1 COOLING SYSTEM FOR HYBRID WORK MACHINE 有权
标题翻译： KÜHLSYSTEMFÜREINE HYBRIDARBEITSMASCHINE
公开(公告)号：EP2660395A1
公开(公告)日：2013-11-06
申请号：EP11852371.1
申请日：2011-12-27
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OTA Yasunori , IWASAKI Satoshi
IPC分类号： E02F9/20 , B60K11/04 , B60L11/14 , F01P7/16 , H02K9/02
CPC分类号： E02F9/2058 , B60K11/02 , B60K2001/005 , B60K2001/006 , B60K2025/026 , B60L1/003 , B60L1/02 , B60L3/003 , B60L3/0061 , B60L11/005 , B60L11/14 , B60L11/1874 , B60L2200/40 , B60L2210/40 , B60L2240/36 , B60L2240/425 , B60L2240/445 , B60L2240/525 , B60L2240/545 , B60Y2200/412 , E02F9/128 , E02F9/2075 , E02F9/2091 , E02F9/2217 , E02F9/226 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , E02F9/26 , F01P3/20 , F01P2050/24 , Y02T10/642 , Y02T10/70 , Y02T10/7005 , Y02T10/7022 , Y02T10/705 , Y02T10/7077 , Y02T10/7241
摘要： When temperature is low, a low-temperature mode is selected, followed by the activation of the heating mode functionality 25a of a PCU 25. Specifically, the PCU 25 sets the ratio of energy recovered by a capacitor 23 to be equal to or greater than the largest value of the energy recovery ratios of the capacitor 23 in a normal mode (e.g., assist motor 22 : capacitor 23 = 2 : 8). Thus, more energy is stored on the capacitor 23 than in the normal mode, helping the capacitor 23 generates heat. As a result, the liquid temperature of the coolant is increased, and its viscosity is reduced accordingly. As above, the invention provides a simple cooling system to be mounted on a hybrid working machine, which is capable of preventing decreases in energy efficiency at low temperature.
摘要翻译：当温度低时，选择低温模式，然后激活PCU25的加热模式功能25a。具体地，PCU 25将由电容器23回收的能量的比率设置为等于或大于在正常模式下电容器23的能量回收率的最大值（例如，辅助电动机22：电容器23 = 2：8）。因此，与正常模式相比，在电容器23上存储更多的能量，有助于电容器23产生热量。结果，冷却剂的液体温度升高，其粘度相应降低。如上所述，本发明提供了一种要安装在混合式作业机上的简单冷却系统，其能够防止低温下的能量效率降低。

9. 发明授权

EP2527540B1 COOLING STRUCTURE FOR CONSTRUCTION MACHINE 有权
公开(公告)号：EP2527540B1
公开(公告)日：2019-07-17
申请号：EP11734541.3
申请日：2011-01-07
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： ATARASHI Takayuki , TERAKADO Shuichi , FUNABASHI Shigehisa , OKUMURA Shinya , KIEDA Shigekazu , OTA Yasunori
IPC分类号： B60L58/26 , E02F9/00 , B60K1/04 , B60K11/06 , E02F9/18 , B60K6/20 , B60K11/04 , E02F9/08 , B60K1/00

10. 发明授权

EP2660395B1 COOLING SYSTEM FOR HYBRID WORK MACHINE 有权
公开(公告)号：EP2660395B1
公开(公告)日：2018-12-12
申请号：EP11852371.1
申请日：2011-12-27
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OTA Yasunori , IWASAKI Satoshi
IPC分类号： E02F9/20 , B60K11/04 , B60L11/14 , F01P7/16 , H02K9/02 , B60K11/02
CPC分类号： E02F9/2058 , B60K11/02 , B60K2001/005 , B60K2001/006 , B60K2025/026 , B60L1/003 , B60L1/02 , B60L3/003 , B60L3/0061 , B60L11/005 , B60L11/14 , B60L11/1874 , B60L2200/40 , B60L2210/40 , B60L2240/36 , B60L2240/425 , B60L2240/445 , B60L2240/525 , B60L2240/545 , B60Y2200/412 , E02F9/128 , E02F9/2075 , E02F9/2091 , E02F9/2217 , E02F9/226 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , E02F9/26 , F01P3/20 , F01P2050/24 , Y02T10/642 , Y02T10/70 , Y02T10/7005 , Y02T10/7022 , Y02T10/705 , Y02T10/7077 , Y02T10/7241
摘要： When temperature is low, a low-temperature mode is selected, followed by the activation of the heating mode functionality 25a of a PCU 25. Specifically, the PCU 25 sets the ratio of energy recovered by a capacitor 23 to be equal to or greater than the largest value of the energy recovery ratios of the capacitor 23 in a normal mode (e.g., assist motor 22 : capacitor 23 = 2 : 8). Thus, more energy is stored on the capacitor 23 than in the normal mode, helping the capacitor 23 generates heat. As a result, the liquid temperature of the coolant is increased, and its viscosity is reduced accordingly. As above, the invention provides a simple cooling system to be mounted on a hybrid working machine, which is capable of preventing decreases in energy efficiency at low temperature.

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