公开(公告)号：US20230365006A1

公开(公告)日：2023-11-16

申请号：US18245162

申请日：2022-01-12

Applicant: SKC CO., LTD.

Inventor： Nah Young KIM ,  Seunghwan LEE ,  Jong Hak CHOI ,  Tae Kyoung KIM

IPC: B60L53/122 ,  H02J50/12 ,  C08K3/22 ,  C08L77/00 ,  C08K5/541 ,  C08K3/32

CPC classification number: B60L53/122 ,  H02J50/12 ,  C08K3/22 ,  C08L77/00 ,  C08K5/541 ,  C08K3/32 ,  C08K2003/2268 ,  C08K2201/003 ,  C08K2201/01 ,  C08K2003/329 ,  C08K2201/014

Abstract: A wireless charging apparatus according to an embodiment includes a magnetic unit with a low strain rate (thermal strain) at 180° C., wherein a position change (ΔDR1) at 180° C. is 0.07 or less, to thereby provide the magnetic unit with improved heat resistance and magnetic properties and prevent deformation and damage of the magnetic unit during wireless charging, and further improve the high temperature stability and charging efficiency. Therefore, the wireless charging apparatus can be efficiently used in personal transportation means such as electric motorcycles, electric kickboards, electric scooters, electric wheelchairs, and electric bicycles, as well as transportation means such as electric vehicles requiring large-capacity power transmission between a transmitter and a receiver.

公开(公告)号：US20230369894A1

公开(公告)日：2023-11-16

申请号：US18245546

申请日：2021-10-15

Applicant: SKC CO., LTD.

Inventor： Nah Young KIM ,  Seunghwan LEE ,  Jong Hak CHOI ,  Tae Kyoung KIM

IPC: H02J50/10 ,  B60L53/12

CPC classification number: H02J50/10 ,  B60L53/12

Abstract: The wireless charging device according to an embodiment allows adjustment of characteristics, including the distance between a coil and a magnetic material, to be within particular numerical ranges and thus has high charging efficiency, facilitates assembly, and can be improved in durability. Therefore, the wireless charging device is useful in a transportation means, such as an electric vehicle, requiring high-capacity power transmission between a transmitter and a receiver.

公开(公告)号：US20220416575A1

公开(公告)日：2022-12-29

申请号：US17762301

申请日：2020-10-06

Applicant: SKC CO., LTD.

Inventor： Nah Young KIM ,  Seunghwan LEE ,  Jong Hak CHOI ,  Tae Kyoung KIM

IPC: H02J50/00 ,  H02J50/10 ,  B60L53/12 ,  B60L53/302 ,  H05K7/20

Abstract: The present invention relates to a wireless charging device and a mobile means including same. Specifically, according to an embodiment of the present invention, a wireless charging device comprises: a coil unit, a magnetic unit arranged on the coil unit; and a heat transfer unit arranged in contact with at least a portion of the magnetic unit, thereby efficiently transferring heat generated in the magnetic unit to the outside and further improving heat dissipation and charging efficiency. Therefore, the wireless charging device can be advantageously used in a mobile means such as an electric vehicle requiring a large amount of power transmission between a transmitter and a receiver.

公开(公告)号：US20220351892A1

公开(公告)日：2022-11-03

申请号：US17764515

申请日：2020-10-30

Applicant: SKC CO., LTD.

Inventor： Tae Kyoung KIM ,  Jong Hak CHOI ,  Nah Young KIM ,  Seunghwan LEE

IPC: H01F27/255 ,  H02J50/10 ,  H01F27/36 ,  H01F27/28 ,  H01F27/08

Abstract: A wireless charging apparatus according to an embodiment may improve both the charging efficiency and the heat dissipation characteristics by use of a three-dimensional structure in a magnetic portion. In detail, the wireless charging efficiency may be increased and heat generated from the magnetic portion may be lowered by increasing the thickness of the magnetic portion near a coil portion, where electromagnetic energy is concentrated during wireless charging, and by reducing the thickness of the magnetic portion in the center, where the density of the electromagnetic energy is relatively low. Accordingly, the wireless charging apparatus can be efficiently used in a mobile means such as an electric vehicle that requires transmission of a large amount of power between a transmitter and a receiver.

公开(公告)号：US20240001790A1

公开(公告)日：2024-01-04

申请号：US18044577

申请日：2021-10-15

Applicant: SKC CO., LTD.

Inventor： Seunghwan LEE ,  Tae Kyoung KIM ,  Jong Hak CHOI ,  Nah Young KIM

IPC: B60L53/302 ,  B60L53/12 ,  H02J50/00 ,  H02J50/10 ,  H01F27/16

CPC classification number: B60L53/302 ,  B60L53/12 ,  H01F38/14 ,  H02J50/10 ,  H01F27/16 ,  H02J50/005

Abstract: A wireless charging device according to an embodiment can effectively dissipate heat generated in a magnetic part, without causing a short circuit of a coil part or degradation of charging efficiency by having the magnetic part placed in a cooling part separated from the coil part and circulating cooling water in the cooling part. Therefore, the wireless charging device can be usefully used in a transportation means, such as an electric vehicle, which requires high-capacity power transmission between a transmitter and a receiver.

公开(公告)号：US20230339337A1

公开(公告)日：2023-10-26

申请号：US18044788

申请日：2021-10-15

Applicant: SKC CO., LTD.

Inventor： Nah Young KIM ,  Seunghwan LEE ,  Jong Hak CHOI ,  Tae Kyoung KIM

IPC: B60L53/12 ,  H02J50/12 ,  H02J50/70 ,  H02J50/00

CPC classification number: B60L53/12 ,  H02J50/12 ,  H02J50/70 ,  H02J50/005

Abstract: A wireless charging device according to an embodiment can enhance charging efficiency and minimize heat generation while having an appropriate thickness by satisfying a specific expression in which characteristics including the distance between a magnetic part and a shield part and a Q factor are reflected. Therefore, the wireless charging device is useful for a mobility means, such as an electric vehicle, requiring high-capacity power transmission between a transmitter and a receiver.

公开(公告)号：US20220328232A1

公开(公告)日：2022-10-13

申请号：US17765819

申请日：2020-10-29

Applicant: SKC CO., LTD.

Inventor： Seunghwan LEE ,  Tae Kyoung KIM ,  Jong Hak CHOI ,  Nah Young KIM

IPC: H01F27/08 ,  H02J50/10 ,  H02J50/70 ,  H02J50/00 ,  H01F27/10 ,  B60L53/12 ,  B60L53/302

Abstract: A wireless charging device according to one implementation embodiment comprises a flow path arranged inside a magnetic unit or at an adjacent portion, and has cooling fluid flowing into the flow path so as to come in contact with the magnetic unit, and thus the heat generated during wireless charging can be readily discharged. Therefore, the wireless charging device can be effectively useful for a moving means such as an electric vehicle that requires high-capacity power transmission between a transmitter and a receiver.

公开(公告)号：US20230402874A1

公开(公告)日：2023-12-14

申请号：US18246856

申请日：2021-10-19

Applicant: SKC CO., LTD.

Inventor： Nah Young KIM ,  Seunghwan LEE ,  Jong Hak CHOI ,  Tae Kyoung KIM

IPC: H02J50/10 ,  H02J50/00 ,  B60L53/122

CPC classification number: H02J50/10 ,  H02J50/005 ,  B60L53/122

Abstract: A wireless charging device according to one embodiment has an inductance deviation at 80° C. of 0 or more, and has a magnetic part that has a permeability change rate (ΔP1) of 0/° C. or more, thus having excellent high-temperature stability, and being able to maintain excellent charging efficiency even at high temperature. Therefore, the wireless charging device can be useful in a transportation means such as an electric vehicle requiring large-capacity power transmission between a transmitter and a receiver.

公开(公告)号：US20230336026A1

公开(公告)日：2023-10-19

申请号：US18019481

申请日：2022-03-25

Applicant: SKC CO., LTD.

Inventor： Jong Hak CHOI ,  Tae Kyoung KIM ,  Nah Young KIM ,  Seunghwan LEE

IPC: H02J50/00 ,  B60L53/12 ,  H02J50/10

CPC classification number: H02J50/005 ,  B60L53/12 ,  H02J50/10

Abstract: A wireless charging apparatus for a transportation means according to an embodiment comprises a magnetic unit having a moisture absorption rate adjusted to a specific range, and accordingly, high magnetic properties and charging efficiency may be provided under a frequency and high power applied to wireless charging. Therefore, the wireless charging apparatus can be applied to a transportation means, such as an electric vehicle requiring a large amount of power transmission between a transmitter and a receiver.

公开(公告)号：US20220410730A1

公开(公告)日：2022-12-29

申请号：US17777844

申请日：2020-11-20

Applicant: SKC CO., LTD.

Inventor： Tae Kyoung KIM ,  Nah Young KIM ,  Jong Hak CHOI ,  Seunghwan LEE

IPC: B60L53/12 ,  B60L53/302 ,  H02J50/00 ,  H02J50/10 ,  H02J50/70 ,  H01F27/36 ,  H01F27/08

Abstract: A wireless charging device according to an embodiment, can effectively discharge heat by including an insulating heat dissipation part in the inner part of a magnetic part or between the magnetic part and a coil part. Therefore, the wireless charging device can be effectively used for a transportation means such as an electric vehicle that requires high-capacity power transmission between a transmitter and a receiver.