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1.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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公开(公告)号：EP3779517A1
公开(公告)日：2021-02-17
申请号：EP19823098.9
申请日：2019-02-27
发明人： HE, Mou , CHEN, Wei , ZHU, Yongfa
IPC分类号： G01V3/10
摘要： A detection coil, a detection apparatus, and a detection system are used to resolve a prior-art problem that a metal foreign matter detection method has relatively low efficiency. In this application, the detection coil is a planar coil, and includes a first group of coils, a second group of coils, and a third group of coils that are continuously wound and coaxial, and the second group of coils is located between the first group of coils and the third group of coils. The first group of coils, the second group of coils, and the third group of coils each include one turn of coil or a continuously wound multi-turn coil, and the continuously wound multi-turn coil is coaxial. A sum of induced electromotive forces generated by the first group of coils and the third group of coils in a first magnetic field is equal to a value of an induced electromotive force generated by the second group of coils in the first magnetic field, and directions are opposite. A coil that generates the first magnetic field is coaxial with the first group of coils, the second group of coils, and the third group of coils. When a metal foreign matter exists, a sum of the induced electromotive forces of the first group of coils, the second group of coils, and the third group of coils is not zero.
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公开(公告)号：EP2871761A1
公开(公告)日：2015-05-13
申请号：EP14809745.4
申请日：2014-03-11
发明人： ZHENG, Feng , PEI, Changsheng , ZHU, Yongfa
IPC分类号： H02M1/44
CPC分类号： H02M1/44 , H01F27/02 , H02M1/126 , H02M3/155 , H02M2001/0064 , H02M2001/123
摘要： The present invention provides a voltage conversion device and a method for adjusting common mode noise impedance, which relates to the circuit field, and enables a common mode impedance value of a noise source and an impedance value of an EMI filter to enter a mismatch state, so as to reduce a restriction on design of the EMI filter, so that a size of the EMI filter is smaller and utilization efficiency of the EMI filter is higher. The method is: adjusting an impedance value of a common mode noise source by adjusting a balanced impedance value in a balanced winding on a voltage conversion device, so as to enable the impedance value of the common mode noise source and an impedance value of an EMI filter to enter a mismatch state. Embodiments of the present invention are used to enable an impedance value of a common mode noise source and an impedance value of an EMI filter to enter a mismatch state.
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公开(公告)号：EP4030586A1
公开(公告)日：2022-07-20
申请号：EP20869667.4
申请日：2020-06-16
发明人： FENG, Shaojie , ZENG, Zhiqiang , ZHU, Yongfa , QIU, Jin
IPC分类号： H02J50/05
摘要： This application discloses a wireless charging system, and pertains to the field of wireless charging technologies. The system includes: a transmit apparatus and a receive apparatus; the transmit apparatus includes an inverter circuit and two transmit electrodes, an input terminal of the inverter circuit is connected to a direct-current power supply, and two output terminals of the inverter circuit are connected to the two transmit electrodes respectively; the receive apparatus includes two receive electrodes and a rectifier circuit, two input terminals of the rectifier circuit are connected to the two receive electrodes respectively, and an output terminal of the rectifier circuit is connected to a load. In this application, one transmit electrode of the two transmit electrodes is coupled to one receive electrode of the two receive electrodes through a first transmission medium whose electric conductivity is greater than electric conductivity of air, so as to increase equivalent coupling capacitance between the transmit electrode and the receive electrode, thereby effectively increasing a wireless charging transmission distance and improving flexibility of wireless charging.
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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CIRCUIT BOARD AND POWER CONVERSION DEVICE WITH SAME 有权LEITERPLATTE UND LEISTUNGSWANDLUNGSVORRICHTUNG MIT DER LEITERPLATTE
公开(公告)号：EP2825005A1
公开(公告)日：2015-01-14
申请号：EP13863666.7
申请日：2013-09-28
发明人： GUO, Quan , ZHU, Yongfa , HAN, Chengzhang
CPC分类号： H01F27/2804 , H01F5/00 , H01F17/0013 , H01F17/06 , H01F2027/2809 , H02M3/06 , H02M3/158 , H02M3/1588 , H05K1/0218 , H05K1/0298 , H05K1/115 , H05K1/165 , H05K1/18 , H05K3/429 , H05K7/02 , H05K2201/086 , H05K2201/10015 , Y02B70/1466
摘要： The present invention is applicable to the field of circuit board technologies, and discloses a circuit board and a power conversion apparatus having the circuit board. The foregoing circuit board includes a substrate and a magnetic core, where the magnetic core is embedded into the substrate, at least one turn of a winding conductor wound around the magnetic core is arranged on the substrate, each turn of the winding conductor includes a first end-surface conductor and a second end-surface conductor that are separately arranged on two ends of the magnetic core, and each turn of the winding conductor further includes a first side-surface conductor that penetrates through the magnetic core from an inner side of the magnetic core and a second side-surface conductor that penetrates through the magnetic core from an outer side of the magnetic core. The power conversion apparatus includes the foregoing circuit board. According to the circuit board and the power conversion apparatus having the circuit board provided by the present invention, the magnetic core is embedded and different manners of winding the magnetic core are used to reduce the usage area of the substrate and flexibly use a wire routing space of a conductive layer of the substrate, which achieves larger inductance, saves materials, and reduces cost for fabricating a power conversion apparatus.
摘要翻译： 本发明可应用于电路板技术领域，并且公开了具有电路板的电路板和电力转换装置。 上述电路板包括基板和磁芯，其中磁芯被嵌入到基板中，缠绕在磁芯上的绕组导体的至少一圈设置在基板上，绕组导体的每一圈都包括第一 端面导体和第二端面导体，其分开设置在磁芯的两端上，并且绕组导体的每一圈还包括第一侧面导体，其从第二侧面导体的内侧穿过磁芯 磁芯和从磁芯的外侧穿过磁芯的第二侧面导体。 电力转换装置包括上述电路板。 根据本发明的具有电路板的电路板和电力转换装置，嵌入磁芯，并且使用不同的卷绕磁芯的方式来减少基板的使用面积，并且灵活地使用布线空间 的基板的导电层，其实现更大的电感，节省材料，并降低制造电力转换装置的成本。
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公开(公告)号：EP2658354A1
公开(公告)日：2013-10-30
申请号：EP12861057.3
申请日：2012-10-26
发明人： YAO, Kai , ZHU, Yongfa , HUANG, Yingpei
CPC分类号： H05K1/117 , H05K1/0265 , H05K1/0298 , H05K3/4046 , H05K2201/0919 , H05K2201/09481 , H05K2201/0979 , H05K2201/10416
摘要： Embodiments of the present invention provide a golden finger and a board edge interconnecting device, where the golden finger includes a printed circuit board PCB surface layer and at least one PCB inner layer, where a metal foil of the PCB inner layer is connected to a metal foil of the PCB surface layer through a current-carrying structure, so that a current-carrying channel of the golden finger passes through the PCB surface layer and the PCB inner layer. The board edge interconnecting device includes the foregoing golden finger. In the embodiments, a current-carrying capacity of a PCB in the golden finger is increased without increasing a size and thickness of a copper foil of the PCB in the golden finger, thereby effectively improving the current-carrying capacity of the PCB in the golden finger.
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公开(公告)号：EP4054055A1
公开(公告)日：2022-09-07
申请号：EP20889527.6
申请日：2020-11-20
发明人： DING, Tao , ZHU, Yongfa , CHEN, Zhensheng , LIU, Kaijun
摘要： Embodiments of this application disclose a wireless charging system and a wireless charging method, and relate to the field of wireless charging technologies, to resolve a problem that user experience is poor because an intelligent accessory needs to be detached when a wireless charging transmit end device or a wireless charging receive end device is replaced. Specific solutions are as follows: The wireless charging system includes a first electronic device, a wireless charging device, and a second electronic device. The wireless charging device is located between the first electronic device and the second electronic device. The wireless charging device is an auxiliary device of the first electronic device and is physically connected to the first electronic device, the wireless charging device includes a receiver circuit and a housing, the receiver circuit includes a receiver coil, and the receiver coil is located on an inner side of the housing. The first electronic device is configured to: charge the wireless charging device, charge the second electronic device through the wireless charging device, and receive power from the second electronic device through the wireless charging device.
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公开(公告)号：EP3780337A1
公开(公告)日：2021-02-17
申请号：EP19827113.2
申请日：2019-04-08
发明人： CHEN, Hongliang , CHEN, Wei , PEI, Changsheng , ZHU, Yongfa
IPC分类号： H02J50/40
摘要： Embodiments of this application disclose a wireless charging apparatus and method, and relates to the field of wireless power transmission system technologies. The apparatus includes a voltage conversion circuit, an excitation coil, n first resonance coils, and a controller, where n is greater than or equal to 3. The voltage conversion circuit is connected to the excitation coil and is configured to convert a power grid voltage into a high-frequency alternating current voltage; the excitation coil is configured to generate a magnetic field based on the high-frequency alternating current voltage; the n first resonance coils are arranged in different directions and are configured to conduct the magnetic field; and the controller is configured to: monitor power statuses of the first resonance coils, and enable or disable the first resonance coils based on the power statuses.
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公开(公告)号：EP3065276B1
公开(公告)日：2020-04-22
申请号：EP15812933.8
申请日：2015-08-10
发明人： YANG, Dan , WANG, Qinghai , ZHU, Yongfa
IPC分类号： H02M1/15
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