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公开(公告)号：US20210249907A1
公开(公告)日：2021-08-12
申请号：US17244562
申请日：2021-04-29
Applicant: LG ELECTRONICS INC.
Inventor： Jinmoo PARK , Jeongkyo SEO , Beomseok CHAE , Jaesung LEE , Jihyun LEE
IPC: H02J50/12 , H01F38/14 , B60L53/38 , B60L53/122 , B60L53/124 , B60L53/126 , H02J50/90
Abstract: A wireless power transmitter that transfers power to a wireless power receiver includes a coil assembly comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; a series capacitance; a shielding extending to at least 2 mm beyond an outer boundary of the coil assembly, has a thickness of at least 1.5 mm and being composed of Mn—Zn; and a full-bridge inverter driving each of coils included in the coil assembly individually.
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公开(公告)号：US20230285783A1
公开(公告)日：2023-09-14
申请号：US18016476
申请日：2021-06-25
Applicant: LG ELECTRONICS INC.
Inventor： Minsoo KIM , Hyengcheul CHOI , Jinmoo PARK , Seonghun LEE , Junchan KWON , Taewook KWON
CPC classification number: A62B18/08 , A62B18/025 , A62B18/006 , H04R3/12 , H04R1/028 , H04R1/2811 , H04R1/403 , G10K11/17823 , G10K11/17873 , A41D13/11
Abstract: A mask apparatus according to the present disclosure includes a mask body provided with a microphone; a mask body cover coupled to a front surface of the mask body and having a front opening through which sound is output forward; a sealing portion coupled to a rear surface of the mask body and forming a breathing space; and a first speaker fixed to one of the mask body and the mask body cover and outputting a sound input by the microphone; in which a first resonance space in which the first speaker is accommodated is formed between the mask body and the mask body cover to amplify the sound output from the first speaker and output the sound to the front opening.
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公开(公告)号：US20200244108A1
公开(公告)日：2020-07-30
申请号：US16627200
申请日：2018-06-28
Applicant: LG Electronics Inc.
Inventor： Sungkyu KIM , Jeongkyo SEO , Jinmoo PARK , Seonghun LEE , Bongsik KWAK , Jaesung LEE , Jihyun LEE , Gyunghwan YOOK , Joonho PARK , Youngchan CHO
Abstract: The present invention relates to a multi-coil based wireless power transmission device and method. Disclosed in the present specification is a wireless power transmission device comprising: a primary coil array forming a magnetic coupling with a secondary coil, which is provided in a wireless power reception device, so as to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one so as to selectively drive each of the plurality of primary coils; a communication and control unit, which controls the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven on the basis of the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils. In an intermediate power level wireless power transmission system, a non-chargeable state due to coil misalignment can be compensated for on the basis of multi-coils, an extended design of a charging area at low cost is simple, and the degree of freedom of the position or the alignment of a reception device can be increased.
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公开(公告)号：US20190109494A1
公开(公告)日：2019-04-11
申请号：US16215080
申请日：2018-12-10
Applicant: LG ELECTRONICS INC.
Inventor： Jaesung LEE , Jinmoo PARK , Jihyun LEE
Abstract: A wireless power transfer device includes an inverter configured to convert DC input to an AC waveform that drives a resonant circuit, a primary coil configured to generate a magnetic field, a shield material placed below the primary coil, a current sensor configured to monitor current in the primary coil, and a communications and control unit configured to communicate with a wireless power receiver device and control power transfer, wherein the primary coil consists of a single layer of which a number of turns is 12, and consists of 105 strands Litz wire of which the diameter is 0.08 mm, wherein the shield material is at least 1.5 mm thick and extends at least 2.5 mm beyond the outside of the primary coil, and wherein the primary coil and the shield material has a self-inductance 10.0 μH.
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公开(公告)号：US20170368945A1
公开(公告)日：2017-12-28
申请号：US15541180
申请日：2016-11-04
Applicant: LG ELECTRONICS INC.
Inventor： Jinmoo PARK , Jeongkyo SEO , Beomseok CHAE , Jaesung LEE , Jihyun LEE
CPC classification number: H02J50/12 , B60L53/12 , B60L53/38 , H01F38/14 , H02J5/005 , H02J7/025 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T90/12 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/14
Abstract: According to an embodiment of present invention, a wireless power transmitter for a vehicle that transfers power to a wireless power receiver includes: a coil assembly comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; and a full-bridge inverter driving each of the coils included in the coil assembly individually, wherein the first and second bottom coils and the top coil have a substantially rectangular frame structure with a through hole in the center, the top coil lies on a plane surface in the middle between the first and second bottom coils, and a distance from the center of the first and second bottom coils to the center of the top coil is set to a range of 23 mm to 25 mm.
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Patent Agency Ranking
公开(公告)号：US20230231419A1
公开(公告)日：2023-07-20
申请号：US18186627
申请日：2023-03-20
Applicant: LG ELECTRONICS INC.
Inventor： Jinmoo PARK , Jeongkyo SEO , Beomseok CHAE , Jaesung LEE , Jihyun LEE
IPC: H02J50/12 , H01F38/14 , B60L53/38 , B60L53/122 , B60L53/124 , B60L53/126 , H02J7/00 , H02J50/90
CPC classification number: H02J50/12 , B60L53/38 , B60L53/122 , B60L53/124 , B60L53/126 , H01F38/14 , H02J7/00304 , H02J7/00308 , H02J50/90 , H02J7/00309
Abstract: A wireless power transmitter configured to transfer power to a wireless power receiver including primary coils comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; a shielding; and a full-bridge inverter, wherein the first and second bottom coils and the top coil have a substantially rectangular frame structure with a through hole in the center, wherein the top coil lies on a plane surface in the middle between the first and second bottom coils, wherein a distance from the center of the first and second bottom coils to the center of the top coil is set to a range of 21 mm to 25 mm, wherein the first and second bottom coils have a height of 48 mm to 50 mm and a width of 43 mm to 45 mm, and the through hole in the first and second bottom coils has a height of 25 mm to 27 mm and a width of 21 mm to 23 mm, wherein the top coil has a height of 45 mm to 47 mm and a width of 48.5 mm to 50.5 mm, and the through hole in the top coil has a height of 20 mm to 22 mm and a width of 24.5 mm to 26.5 mm, wherein the first and second bottom coils and the top coil have a thickness of 0.9 mm to 1.3 mm, wherein an amount of power which is transferred is controlled based on an input voltage of the full-bridge inverter, wherein the input voltage has a range of 1 V to 18 V, wherein an operating frequency to control the amount of the power is within a range of 140 kHz to 150 kHz, wherein an assembly of the primary coils and the shielding has a self-inductance value of 11.3 µH, wherein the full-bridge invertor drives a series capacitance, and wherein a value of the series capacitance is 139 nF.
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公开(公告)号：US20210203193A1
公开(公告)日：2021-07-01
申请号：US17268407
申请日：2019-08-06
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Gyunghwan YOOK , Yongcheol PARK , Jinmoo PARK
Abstract: Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit for receiving wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device and transforming, into a direct current signal, an alternating current signal generated by wireless power; a communication/control unit for receiving the direct current signal from the power pickup unit, transmitting, to the wireless power transmission device, a first power transmission suspension packet for temporarily suspending transmission of the wireless power in order to detect a foreign object, and performing a foreign object detection procedure within a predetermined time window when the transmission of the wireless power is temporarily suspended; and a load for receiving the direct current signal from the power pickup unit.
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公开(公告)号：US20170297438A1
公开(公告)日：2017-10-19
申请号：US15639665
申请日：2017-06-30
Applicant: LG ELECTRONICS INC.
Inventor： Jinmoo PARK , Jeongkyo SEO , Beomseok CHAE , Jaesung LEE , Jihyun LEE , Dohyeon SON
CPC classification number: H02J50/12 , B60L53/12 , B60L53/38 , H01F38/14 , H02J5/005 , H02J7/025 , H02J50/90 , Y02T10/7005 , Y02T10/7072 , Y02T90/12 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/14
Abstract: According to an embodiment of present invention, a wireless power transmitter for a vehicle that transfers power to a wireless power comprising: a resonance circuit comprising a coil assembly and/or a capacitor, wherein the coil assembly comprises first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; a frequency full bridge driver driving each of coils included in the coil assembly individually, and a placement detection unit detecting a placement of the wireless power receiver.
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9.发明申请公开(公告)号：US20130307468A1
公开(公告)日：2013-11-21
申请号：US13651001
申请日：2012-10-12
Applicant: LG ELECTRONICS INC.
Inventor： Jaesung LEE , JungJoon LEE , Jinmoo PARK , Jeongkyo SEO , Dohyeon SON
CPC classification number: H02J7/0052 , H01F27/365 , H01F38/14 , H02J7/0004 , H02J7/0047 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/70 , H02J50/80 , H02J50/90 , H04B5/0037
Abstract: The present disclosure provides the structure of a transmission and reception unit in a wireless charging system. To this end, according to an embodiment, there is provided a wireless power receiver configured to receive a wireless power signal from a wireless power transmitter to receive wireless power, and the wireless power receiver may include a receiving coil unit comprising a primary coil and a secondary coil receiving the wireless power signal; and a charger configured to charge power which is a sum of wireless power received by the primary coil and the secondary coil, respectively, based on the wireless power signal.
Abstract translation: 本公开提供了无线充电系统中的发送和接收单元的结构。 为此，根据实施例，提供了一种无线电力接收器，被配置为从无线电力发射器接收无线电力信号以接收无线电力，并且无线电力接收器可以包括接收线圈单元，其包括初级线圈和 次级线圈接收无线电力信号; 以及充电器，被配置为基于所述无线功率信号分别对作为所述初级线圈和所述次级线圈的次级线圈的无线功率的总和进行充电的功率。
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公开(公告)号：US20220016449A1
公开(公告)日：2022-01-20
申请号：US17245534
申请日：2021-04-30
Applicant: LG Electronics Inc.
Inventor： Hyengcheul CHOI , Jinmoo PARK , Seonghun LEE , Junchan KWON , Taewook KWON , Minsoo KIM
Abstract: A mask apparatus includes a mask body having a fan module, a seal defining a breathing space, a pressure sensor sensing air pressure in the breathing space, a mask body cover coupled to the mask body, and a controller that controls a rotation speed of the fan module based on pressure values. The controller is configured to determine breathing information including a maximum pressure value and time point, and a minimum pressure value and time point, determine a breathing state of a user based on the breathing information, determine whether the breathing state is a steady state, determine a tidal volume of the user based on the breathing information, and control the rotation speed of the fan module based on the tidal volume.
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