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公开(公告)号：US20210151250A1
公开(公告)日：2021-05-20
申请号：US17158538
申请日：2021-01-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yongfa Zhu , Xiaowei Chen , Tao Ding , Zhiqiang Zeng , Chang Yang , Zhaodong He
Abstract: A coil module includes a first planar coil winding that includes a plurality of turns of coils, at least one turn of first coil in the plurality of turns of coils 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, 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.
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12.发明申请公开(公告)号：US20210151247A1
公开(公告)日：2021-05-20
申请号：US17158629
申请日：2021-01-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yongfa Zhu , Xiaowei Chen , Zhiqiang Zeng
Abstract: A coil winding includes a first part of coils and a second part of coils located on opposite sides of an insulation layer, where the first part of coils comprises a first segment of conducting wire, and the second part of coils comprises a second segment of conducting wire. The first segment of conducting wire and the second segment of conducting wire each includes N cutting openings. Both the first segment of conducting wire and the second segment of conducting wire are divided into N+1 sub conducting wires by the N cutting openings. The N+1 sub conducting wires in the first segment of conducting wire and the N+1 sub conducting wires in the second segment of conducting wire are electrically coupled in a one-to-one manner to form N+1 pairs of sub conducting wires including a crossover structure.
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公开(公告)号：US20210063599A1
公开(公告)日：2021-03-04
申请号：US17096054
申请日：2020-11-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mou He , Wei Chen , Yongfa Zhu
Abstract: A detection coil 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. 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. 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 zero. 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：US20180301270A1
公开(公告)日：2018-10-18
申请号：US16015930
申请日：2018-06-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Heqian Yang , Yongfa Zhu , Xiaolong Luo
Abstract: A thin film inductor is disclosed, which includes a thin film magnetic core. The thin film magnetic core includes at least one magnetic thin film. In each magnetic thin film, at least one type-1 gap is provided. A length direction of the type-1 gap is parallel to a direction of hard magnetization of the magnetic thin film. If the thin film magnetic core comprises at least two magnetic thin films, the at least two magnetic thin films are laminated and overlap each other. A sum of widths of all type-1 gaps in each magnetic thin film is the same.
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公开(公告)号：US11978583B2
公开(公告)日：2024-05-07
申请号：US17158538
申请日：2021-01-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yongfa Zhu , Xiaowei Chen , Tao Ding , Zhiqiang Zeng , Chang Yang , Zhaodong He
CPC classification number: H01F38/14 , H01F27/2871 , H01F27/36 , H02J7/04 , H02J50/10
Abstract: A coil module includes a first planar coil winding that includes a plurality of turns of coils, at least one turn of first coil in the plurality of turns of coils 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, 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.
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Patent Agency Ranking
公开(公告)号：US11870274B2
公开(公告)日：2024-01-09
申请号：US17160730
申请日：2021-01-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yongfa Zhu , Tao Ding , Heqian Yang , Changsheng Pei , Zhi Zhang
CPC classification number: H02J50/402 , H02J50/10 , H02J50/80 , H02J50/90
Abstract: A wireless charging device is disclosed, which includes: a charging pad and a first controller. The charging pad includes a plurality of charging units, the plurality of charging units include a first charging unit and a second charging unit. When a first electromagnetic coupling strength between the first charging unit and the to-be-charged device is greater than or equal to a first threshold, the first controller is configured to control the first charging unit to separately charge the to-be-charged device. When both the second electromagnetic coupling strength between the second charging unit and the to-be-charged device and the first electromagnetic coupling strength are less than a first threshold, and are greater than or equal to a second threshold, the first controller is configured to control the first charging unit and the second charging unit to jointly charge the target to-be-charged device.
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公开(公告)号：US11532420B2
公开(公告)日：2022-12-20
申请号：US16015930
申请日：2018-06-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Heqian Yang , Yongfa Zhu , Xiaolong Luo
IPC: H01F3/14 , H01F27/24 , H02M3/155 , H01F17/00 , H01F27/30 , H01F27/38 , H01F17/04 , H01F27/245 , H01F27/28 , H01F41/02
Abstract: A thin film inductor is disclosed, which includes a thin film magnetic core. The thin film magnetic core includes at least one magnetic thin film. In each magnetic thin film, at least one type-1 gap is provided. A length direction of the type-1 gap is parallel to a direction of hard magnetization of the magnetic thin film. If the thin film magnetic core comprises at least two magnetic thin films, the at least two magnetic thin films are laminated and overlap each other. A sum of widths of all type-1 gaps in each magnetic thin film is the same.
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公开(公告)号：US20210142942A1
公开(公告)日：2021-05-13
申请号：US17155579
申请日：2021-01-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changsheng Pei , Yongfa Zhu , Zhiqiang Zeng
Abstract: A coil module includes a first planar coil winding and a second planar coil winding. A first coil of the first planar coil winding includes a first outer side part and a first inner side part. A first coil of the second planar coil winding includes a second outer side part and a second inner side part. An end part of the first outer side part is connected to an end part of the second inner side part, and an end part of the second outer side part is connected to an end part of the first inner side part.
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公开(公告)号：US20160163447A1
公开(公告)日：2016-06-09
申请号：US15046656
申请日：2016-02-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Quan Guo , Yongfa Zhu , Chengzhang Han
CPC classification number: 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
Abstract: The present invention discloses a circuit board, including 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 circuit board and the power conversion apparatus having the circuit board provided by the present invention, achieve larger inductance, save materials, and reduce cost for fabricating a power conversion apparatus.
Abstract translation: 本发明公开了一种电路板，包括基板和磁芯，其中磁芯嵌入基板中，缠绕在磁芯上的绕组导体的至少一圈设置在基板上，绕组的每一圈 导体包括分开布置在磁芯的两端上的第一端面导体和第二端面导体，绕组导体的每一圈还包括从第一侧面导体和第二端面导体穿过磁芯的第一侧面导体， 磁芯的内侧和从磁芯的外侧穿过磁芯的第二侧面导体。 具有本发明提供的电路板的电路板和电力转换装置实现更大的电感，节省材料并降低制造电力转换装置的成本。
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20.发明申请VOLTAGE CONVERSION DEVICE AND METHOD FOR ADJUSTING COMMON MODE NOISE IMPEDANCE 有权电压转换装置和调整通用模式噪声阻抗的方法公开(公告)号：US20150103571A1
公开(公告)日：2015-04-16
申请号：US14577773
申请日：2014-12-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Feng Zheng , Changsheng Pei , Yongfa Zhu
IPC: H02M1/44
CPC classification number: H02M1/44 , H01F27/02 , H02M1/126 , H02M3/155 , H02M2001/0064 , H02M2001/123
Abstract: 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 a common mode impedance value of a noise source by adjusting a balanced impedance value in a balanced winding on a voltage conversion device, so as to enable the common mode impedance value of the noise source and an impedance value of an EMI filter to enter a mismatch state.
Abstract translation: 本发明提供了一种与电路领域相关的用于调节共模噪声阻抗的电压转换装置和方法，并且使得噪声源的共模阻抗值和EMI滤波器的阻抗值能够进入失配状态， 以减少对EMI滤波器的设计的限制，使得EMI滤波器的尺寸更小，并且EMI滤波器的利用效率更高。 该方法是：通过调整电压转换装置的平衡绕组中的平衡阻抗值来调整噪声源的共模阻抗值，以使噪声源的共模阻抗值和EMI的阻抗值 过滤器进入不匹配状态。
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