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公开(公告)号：EP4439925A1
公开(公告)日：2024-10-02
申请号：EP22914221.1
申请日：2022-12-13
发明人： FENG, Shaojie , QIAN, Zhongnan , ZHU, Yongfa , CHEN, Xiaowei , SUN, Quanhao , DUAN, Zhiqiang , YANG, Jiangtao
IPC分类号： H02J50/05
摘要： This application provides a wireless charging transmitting apparatus, a wireless charging receiving apparatus, and a system thereof. The wireless charging transmitting apparatus includes an inverter circuit, a first transmitting plate, and a second transmitting plate. The wireless charging receiving apparatus includes a first receiving plate, a second receiving plate, and a rectifier circuit. An input end of the inverter circuit is connected to a direct current power supply, a first output end of the inverter circuit is connected to the first transmitting plate, and a second output end of the inverter circuit is connected to the second transmitting plate. A first contact is disposed on the first transmitting plate, and a second contact is disposed on the first receiving plate. When the first contact is in contact with the second contact, the first transmitting plate establishes an electrical connection with the first receiving plate. The second transmitting plate performs electric field coupling with the second receiving plate. The first receiving plate is connected to a first input end of the rectifier circuit, the second receiving plate is connected to a second input end of the rectifier circuit, and an output end of the rectifier circuit is connected to a load. In this application, a deviation capability of wireless charging is improved.
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公开(公告)号：EP4243267A1
公开(公告)日：2023-09-13
申请号：EP21896345.2
申请日：2021-07-19
发明人： ZHU, Yongfa , ZENG, Zhiqiang , CAI, Jinsen , YANG, Heqian , CHEN, Xiaowei , DING, Tao
IPC分类号： H02M3/158
摘要： This application provides a conversion circuit, a switching power supply, and an electronic device. The conversion circuit mainly includes a first branch circuit and a second branch circuit. Input sides of the first branch circuit and the second branch circuit are connected in series, and output sides of the first branch circuit and the second branch circuit are connected in parallel; or input sides of the first branch circuit and the second branch circuit are connected in parallel, and output sides of the first branch circuit and the second branch circuit are connected in series. This implementation helps improve efficiency of the conversion circuit. When an inductor is disposed in the conversion circuit, a size of the inductor is further reduced, to improve integration.
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公开(公告)号：EP3809430A1
公开(公告)日：2021-04-21
申请号：EP19917242.0
申请日：2019-10-10
发明人： ZHU, Yongfa , CHEN, Xiaowei , DING, Tao , ZENG, Zhiqiang , YANG, Chang , HE, Zhaodong
IPC分类号： H01F27/28
摘要： This application discloses a coil module, a wireless charging transmitting apparatus, a wireless charging receiving apparatus, a wireless charging system, and a mobile terminal. The coil module includes a first planar coil winding, and the first planar coil winding includes a plurality of turns of coils; at least one turn of first coil in the plurality of turns of coils of the first planar coil winding includes at least one first cutting opening, and the first cutting opening divides the first coil into a first outer side part and a first inner side part along an extension direction of the coil; the first outer side part has a first connection end, and the first inner side part has a second connection end; and a first target side part includes a first cutting groove, the first target side part is at least one of the first outer side part and the first inner side part, an extension direction of the first cutting groove is the same as an extension direction of the first target side part, and a width of a single first cutting groove is less than or equal to a width of a single first cutting opening. An eddy current path on the first target side part is cut off to reduce an area through which a magnetic flux passes, so as to reduce a magnetic flux. In this way, an eddy current loss and a circulating current loss are reduced, and charging efficiency is increased.
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公开(公告)号：EP3761329A1
公开(公告)日：2021-01-06
申请号：EP19774272.9
申请日：2019-01-07
发明人： PEI, Changsheng , ZHU, Yongfa , ZENG, Zhiqiang , CHEN, Xiaowei
IPC分类号： H01F38/14
摘要： This application belongs to the field of wireless charging technologies, and discloses a coil module. The module includes: an insulation layer, a first planar coil winding, and a second planar coil winding, where at least one turn of coil of the first planar coil winding includes a first portion, a second portion, and a first connection part, and at least one turn of coil of the second planar coil winding includes a third portion, a fourth portion, and a second connection part. In this application, the first connector is configured to connect an outer side part of the first portion and an inner side part of the second portion, the second connector is configured to connect an inner side part of the third portion and an outer side part of the fourth portion, and there is an overlap between a projection of the first connector on a plane of the insulation layer and a projection of the second connector on the plane of the insulation layer. Correspondingly, this application further discloses a wireless charging transmitting apparatus, a receiving apparatus, and a system in which the coil module is used, and a terminal in which the wireless charging system is used.
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公开(公告)号：EP3764506A1
公开(公告)日：2021-01-13
申请号：EP19833800.6
申请日：2019-04-06
发明人： ZHU, Yongfa , CHEN, Xiaowei , QIU, Jin , HUANG, Xueyan , DING, Tao
IPC分类号： H02J7/00
摘要： This application provides a charging pad used in a wireless charger. The charging pad can be wound. Specifically, the charging pad includes a rigid region and a flexible region, and a structure of the rigid region is different from a structure of the flexible region. A rigid support plate is disposed in the rigid region, and a metal line in the flexible region is in a metal hinge structure or is a bendable metal conducting wire. In addition, this application further provides a wireless charger to which the charging pad is applied.
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6.发明公开
公开(公告)号：EP3809431A1
公开(公告)日：2021-04-21
申请号：EP19930245.6
申请日：2019-12-26
发明人： ZHU, Yongfa , CHEN, Xiaowei , ZENG, Zhiqiang
摘要： This application discloses a coil winding, and belongs to the field of wireless charging technologies. The coil winding includes: an insulation layer, a first part of coils located on one side of the insulation layer, and a second part of coils located on the other side of the insulation layer. The first part of the coil comprises a first segment of conducting wire, the second part of the coil comprises a second segment of conducting wire. The first segment of conducting wire and the second segment of conducting wire each are provided with N cutting openings. The first segment of conducting wire is divided into N+1 first sub conducting wires by the N cutting openings provided on the first segment of conducting wire. The second segment of conducting wire is divided into N+1 second sub conducting wires by the N cutting openings provided on the second segment of conducting wire. The N+1 first sub conducting wires and the N+1 second sub conducting wires are electrically connected in a one-to-one manner, to form N+1 pairs of sub conducting wires. At least one crossover structure is formed in the N+1 pairs of sub conducting wires. In this application, a circulating current loss in the coil winding can be reduced, and wireless charging efficiency can be improved. In addition, this application further discloses a corresponding coil module, a wireless charging transmitting apparatus, a wireless charging receiving apparatus, a wireless charging system, and a terminal.
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