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1.发明申请公开(公告)号：US20250102059A1
公开(公告)日：2025-03-27
申请号：US18294667
申请日：2022-05-16
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Jianwen LI , Yang LIU , Fayu PAN
IPC: F16H57/04
Abstract: A cooling and lubrication device of an electric drive assembly and an electric drive assembly are disclosed. The cooling and lubrication device includes an oil pumping unit, an oil pumping passage, and an oil returning passage. Outlets of oil distribution passages correspond to parts to be cooled and parts to be lubricated inside the motor housing, as well as parts to be cooled and parts to be lubricated. The oil pumping unit pumps the lubricating oil inside the first housing into the oil pumping passage, and transfers the lubricating oil to the parts to be cooled and the parts to be lubricated. The oil returning passage allows the lubricating oil inside the second housing to flow back into the first housing. This cooling and lubrication device can achieve active and directional cooling and lubrication of the parts to be cooled and the parts to be lubricated.
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公开(公告)号：US20240026939A1
公开(公告)日：2024-01-25
申请号：US18193305
申请日：2023-03-30
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Yang CAO , Ping Yu , Jianwen Li , Guoshan Liu , Pengyuan Zhou
IPC: F16D27/14
CPC classification number: F16D27/14 , F16D2027/001
Abstract: A monostable electromagnetic clutch is disclosed, which comprises a movable member, a magnetic assembly, a fixed disc, and a plurality of iron cores, wherein the magnetic assembly is connected to the fixed disc, the iron cores cross through the magnetic assembly and are connected to the fixed disc, the movable member is provided thereon with an spring member, and under an action of an electromagnetic force of the magnetic assembly and an spring force of the spring member, the movable member can reciprocate at a side of the magnetic assembly to keep the movable member and the iron cores in an engaged state or a disengaged state. The structural design of the present disclosure is flexible and compact, and can be combined in a different way according to different applications and different structural spaces. The electromagnetic clutch basic units can be used separately, or a plurality of electromagnetic clutch basic units can be combined freely, and after combination, they can be freely arranged in a variety of installation positions and spaces as required, and the use of space can be fully optimized.
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公开(公告)号：US11879505B2
公开(公告)日：2024-01-23
申请号：US18245376
申请日：2020-12-30
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Ping Yu , Changqi Yang , Jianwen Li , Yang Cao
Abstract: An electromagnetic clutch is provide that includes a fixed component, a driven component and an elastic component. The fixed component includes a magnetic yoke provided thereon with multiple iron cores, and each iron core is provided thereon with a coil. The driven component includes an armature disc provided thereon with multiple magnets. The armature disc and the magnetic yoke are disposed correspondingly, and the iron cores and the magnets are disposed correspondingly. The elastic component is used to keep the armature disc at a disengaged position from magnetic yoke. When the coil is energized in a forward direction, the iron core attracts the magnet and when the coil is energized in a reverse direction, the iron core generates an electromagnetic force to reduce an attractive force of the magnet.
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公开(公告)号：US20230258261A1
公开(公告)日：2023-08-17
申请号：US18005125
申请日：2020-08-14
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Jianwen LI , Xudong YANG , Xianwen ZENG , Jiaqi LI
CPC classification number: F16H57/0415 , F16H57/02
Abstract: A gearbox casing is provided in which a bottom part or a side part of the gearbox casing has a number of first coolant tanks. The gearbox casing above a bottom part of the first coolant tanks is provided therein with a lubricating liquid, and the first coolant tanks are used to cool the lubricating liquid. A first coolant tank is provided therein with a number of parallel partition walls, by which the first coolant tank is separated into at least two communicated sub-tanks that are provided with first fixed guide ribs and first suspended guide ribs to divide the coolant.
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公开(公告)号：US11686356B2
公开(公告)日：2023-06-27
申请号：US17439213
申请日：2020-03-16
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Ping Yu , Haitao Jin , Zhengqiang Pei , Yuxia Hei
IPC: F16D27/118 , F16D27/108 , F16D27/14
CPC classification number: F16D27/118 , F16D27/108 , F16D27/14
Abstract: An electromagnetic dog clutch is disclosed to solve the technical problem in conventional electromagnetic dog clutches that the friction is easy to occur between a bearing seat and an end cap of a movable gear sleeve. The electromagnetic dog clutch comprises a movable gear sleeve (5) and a fixed gear sleeve (12) that mesh with each other for transmission. A first end cap (6) is provided on an outer side of the movable gear sleeve (5), a bearing (1) is provided on an outer circumference of the movable gear sleeve (5), the bearing (1) is embedded in a bearing seat (7), a rear end of the bearing seat (7) is provided with a positioning surface, and a front end of the first end cap (6) is a vertical plane that matches the positioning surface of the bearing seat (7). The front end of the first end cap (6) is provided with a positioning pin (15), the rear end of the bearing seat (7) is provided with a positioning hole to cooperate with the positioning pin (15), and the positioning pin (15) is inserted into the positioning hole to limit the bearing seat (7) and the first end cap (6) so that they can move in an axial direction relative to each other but cannot rotate relative to each other, thereby preventing the occurrence of friction between them.
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Patent Agency Ranking
公开(公告)号：US20230145255A1
公开(公告)日：2023-05-11
申请号：US17860929
申请日：2022-07-08
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Yang CAO , Ping YU , Jianwen LI
IPC: F16D27/14 , F16D27/112
CPC classification number: F16D27/14 , F16D27/112 , F16D2027/005
Abstract: A bistable electromagnetic clutch is provided that includes a first part, a second part and an spring part. The first part includes a yoke with a plurality of iron cores, and an electromagnetic coil on each of the iron cores. The second part includes a moving carrier disc and a magnetic conductive disc that is fixed on a side of the moving carrier disc that is away from the yoke. Several magnets are fixed on the moving carrier disc, and the iron cores and the magnets are provided in a correspondence relation. The spring part is configured to keep the moving carrier disc and the yoke in normally separated positions. Two adjacent electromagnetic coils form a group, two electromagnetic coils in a same group are wound to form a group of windings with identical magnetic polarities, and corresponding two magnets form a group of magnetomotive forces with identical magnetic polarities.
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公开(公告)号：US20230049064A1
公开(公告)日：2023-02-16
申请号：US17798007
申请日：2020-04-08
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Defeng Hou , Jianwen Li , Ran Sun , Guodong Mu
Abstract: A mechanical unlocking mechanism for electronic parking is provided, which comprises a parking cam assembly, a pawl assembly, a parking gear, a pull cord assembly and an actuating assembly. The parking cam assembly comprises a parking guide shaft and a parking cam. The parking cam is sleeved on the parking guide shaft. The outer side of the parking cam is provided with an arc protrusion along a circumferential direction, so that with the rotation of the parking cam, the pawl assembly is in a first position where the parking gear parks in and a second position where the parking gear parks out. One end of the pull cord assembly is connected with the actuating assembly, and the other end of the pull cord assembly is connected with the parking guide shaft. The actuating assembly drives, via the pull cord assembly, the parking guide shaft to translate, thereby driving the pawl to move from the first position to the second position. The mechanical unlocking mechanism according to the present disclosure provides an emergent mechanical unlocking function when the parking motor is powered off, and the driver can perform manual mechanical unlocking in the cab without getting off the vehicle, so it has high safety and good operation comfort.
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公开(公告)号：US20220349460A1
公开(公告)日：2022-11-03
申请号：US17371986
申请日：2021-07-09
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Ping YU , Yang CAO , Jianwen LI
Abstract: The present disclosure discloses a locking structure of a differential. The locking structure comprises a bi-stable electromagnetic clutch sleeved on an output axle shaft on one side of the differential. The bi-stable electromagnetic clutch comprises a movable locking disc and a fixed locking disc; the fixed locking disc is fixedly connected to a differential housing or integrated with differential housing, and the movable locking disc and the fixed locking disc have face teeth that can engage with each other. The movable locking disc is sleeved on the output axle shaft, the bi-stable electromagnetic clutch drives the movable locking disc to move axially after being energized, the output axle shaft and the differential housing are locked when the movable face teeth engaged with the fixed face teeth so that the output axle shaft on either side of the differential and the differential housing have a same rotational speed and output torque. The locking structure has the advantages of bi-stable or bi-state, controllability, and a long service life.
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公开(公告)号：US11448681B2
公开(公告)日：2022-09-20
申请号：US15733650
申请日：2019-03-13
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Yuxia Qu , Fuxiang Wan , Lingling Tan
Abstract: An insulation monitoring electric circuit of an electric-motor controller, includes: a first voltage sampling circuit and a second voltage sampling circuit; the first voltage sampling circuit is connected to an input anode (+VBUS) of a busbar, an input cathode (PGND) of the busbar and a busbar-voltage sampled-signal (HV_VDC) line, and a busbar-voltage sampled-signal (HV_VDC) line is connected to the electric-motor controller; the second voltage sampling circuit is connected to the input anode (+VBUS) of the busbar, the input cathode (PGND) of the busbar and an insulation-voltage sampled signal (HV_VDC) line, and an insulation-voltage sampled signal (HV_VISO) line is connected to the electric-motor controller; and the electric-motor controller is configured to compare a busbar-voltage value gathered by the first voltage sampling circuit and an insulation-voltage value gathered by the second voltage sampling circuit, and when the busbar-voltage value and the insulation-voltage value are different, emit an insulation monitoring alarming signal.
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公开(公告)号：US11444505B2
公开(公告)日：2022-09-13
申请号：US15733636
申请日：2018-11-06
Applicant: Jing-Jin Electric Technologies Co., Ltd.
Inventor： Zhengqiang Pei , Ping Yu , Haitao Jin , Pengfei Liu
Abstract: The present disclosure relates to the field of shaft sealing, and particularly relates to a sealing structure of an electric-machine-shaft extension end. The sealing structure of an electric-machine-shaft extension end includes an electric-machine end cap and an electric-machine-shaft extension end, the electric-machine-shaft extension end is mounted to the electric-machine end cap via a bearing, a double-oil-seal structure is provided between the electric-machine end cap and the electric-machine-shaft extension end, the double-oil-seal structure includes an oil-seal seat that is connected to the electric-machine end cap and an outer-side oil seal and an inner-side oil seal that are provided inside the oil-seal seat, the outer-side oil seal and the inner-side oil seal are provided face to face, and are interference-fitted to the oil-seal seat, and an oil storing chamber and an oil-seal spacer ring contained inside the oil storing chamber are provided between the outer-side oil seal and the inner-side oil seal.
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