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公开(公告)号：EP4180169B1
公开(公告)日：2024-09-18
申请号：EP22772397.0
申请日：2022-01-24
IPC分类号： B23P19/027 , E02F9/00 , E02F9/22 , F16C3/03 , F16C11/04
CPC分类号： E02F9/006 , E02F9/2271 , B23P19/027 , F16C3/03 , F16C11/045
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公开(公告)号：EP4424922A1
公开(公告)日：2024-09-04
申请号：EP22887118.2
申请日：2022-10-27
摘要： An upper revolving structure (3) of an electric hydraulic excavator (1) includes an electric motor (13) that serves as a power source, a battery (15) for storing electric power to be supplied to the electric motor (13), a power feeding port (16) to which a power feeding cable (17) for feeding electric power to the electric motor (13) or the battery (15) is connected via a relay cable (18), and a camera (23) that monitors the surroundings of a lower traveling structure (2) and the upper revolving structure (3). The camera (23) is attached to the upper revolving structure (3) in a position higher than the power feeding port (16) to capture an image of the power feeding port (16). With this configuration, it is possible to confirm through a monitor (10) the power feeding port (16), the connecting state of the relay cable (18) with respect to the power feeding port (16), and the treading, the catching-in, or the like of the power feeding cable (17) at the working of the electric hydraulic excavator (1).
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公开(公告)号：EP4424920A1
公开(公告)日：2024-09-04
申请号：EP22886572.1
申请日：2022-09-28
申请人： Nabtesco Corporation
发明人： NAKAMURA, Kazuhito
摘要： A driving apparatus 1 of an electric construction machine including a lower traveling body 101, an upper rotating body 102 that is attached to the lower traveling body 101, a boom 104 attached to the upper rotating body 102, an arm 105 that is attached to the boom 104, and a bucket 106 that is attached to the arm 105, includes: a battery 10 that generates DC power, DC/AC converters 121 and 131 that convert the DC power generated by the battery 10 into AC power, a contactless transmission unit 122 to 124, and 132 that contactlessly transmit the AC power converted by the DC/AC converters 121 and 131 in joint components of the electric construction machine, and an actuator 2 that drives the joint component based on the AC power transmitted from the contactless transmission unit 122 to 124, and 132.
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公开(公告)号：EP3951068B1
公开(公告)日：2024-04-03
申请号：EP20815508.5
申请日：2020-05-18
发明人： TANAKA, Hiroki , KURAMOTO, Shigeki , WADA, Ichiro , MIYANO, Yukio
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公开(公告)号：EP3892780B1
公开(公告)日：2024-02-07
申请号：EP20773042.5
申请日：2020-02-17
发明人： YASUDA, Yutaka , KUMATA, Daisuke , AIKAWA, Ryouta
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公开(公告)号：EP4286598A1
公开(公告)日：2023-12-06
申请号：EP21923246.9
申请日：2021-12-23
申请人： KUBOTA CORPORATION
发明人： HORII, Hiroshi
摘要： To ease work of transferring a fuel from a fuel supply tank (54) to a fuel tank (T1), a fuel supply guide (55) to be used to supply the fuel by using the fuel supply tank (54) to the fuel tank (T1) having a tank body (T1A) for storing the fuel and a fuel supply port (T1a) on the upper side of the tank body (T1A) includes a support member (56) provided on an upper portion of the fuel tank (T1), and a body member (57) projecting from the support member (56) in a direction away from the fuel supply port (T1a) as the body member extends upward and projecting higher than the fuel supply port (T1a). The body member is capable of receiving the fuel supply tank (T1a) by an upper portion thereof to support the fuel supply tank (T1a).
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公开(公告)号：EP4286197A1
公开(公告)日：2023-12-06
申请号：EP22832460.4
申请日：2022-03-11
摘要： A fuel filling device (18) for refueling a fuel tank (14) is disposed in the vicinity of an exhaust gas post-treatment device (10). Specifically, the fuel filling device (18) is disposed over a hydraulic pump (11) provided to an engine (9) and at a height position equivalent to the exhaust gas post-treatment device (10). Therefore, the fuel filling device (18) can be heated for a short period of time by the exhaust gas post-treatment device (10) which is exposed to high temperature soon after the start of the engine (9).
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公开(公告)号：EP4265455A1
公开(公告)日：2023-10-25
申请号：EP21906318.7
申请日：2021-11-30
摘要： The present invention discloses a configuration for cooling both an electric motor as a drive source and a device for supplying electric power to the electric motor using a cooling medium such as water with a view to achieving efficient cooling without any cost increase. The present invention comprises: an electric motor 12 serving as a drive source; a power feeder 46 for supplying electric power to the electric motor 12 from outside; a cooling flow channel 60 through which coolant water is circulated for cooling the electric motor 12 and the power feeder 46; and a radiator 61 which cools the coolant water flowing through the cooling flow channel 60. The cooling flow channel 60 has a bypass flow channel section 65: that branches from a first flow channel section 60a connected to an inflow side of an intra-power-feeder flow channel, which is a coolant water flow channel disposed in the power feeder 46; that joins a second flow channel section 60b connected to an outflow side of the intra-power-feeder flow channel; and that causes the coolant water to skirt around the power feeder 46.
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公开(公告)号：EP4223941A1
公开(公告)日：2023-08-09
申请号：EP21875723.5
申请日：2021-09-29
发明人： YONEKURA Kiyoshi , OKAZAKI Kohei
摘要： This construction machine (100) comprises: a lower traveling body (200); an upper swiveling body (300); and a rotary coupling member (400) that swivels, together with the upper swiveling body (300), with respect to the lower traveling body (200). The rotary coupling member (400) has a swivel joint (410); a rotary joint (420) that includes a slip ring; a cable (320); a coupling part (430); and a detent part (440) that is fixed to the body (412) of the swivel j oint (410) and that restricts the rotation of a terminal part (426) of the slip ring.
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