WO2022215971A1 - 와인딩 장치 및 이에 의해 제조된 안테나 코일 - Google Patents
와인딩 장치 및 이에 의해 제조된 안테나 코일 Download PDFInfo
- Publication number
- WO2022215971A1 WO2022215971A1 PCT/KR2022/004776 KR2022004776W WO2022215971A1 WO 2022215971 A1 WO2022215971 A1 WO 2022215971A1 KR 2022004776 W KR2022004776 W KR 2022004776W WO 2022215971 A1 WO2022215971 A1 WO 2022215971A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- loop
- jig
- winding
- metal wire
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/061—Winding flat conductive wires or sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/071—Winding coils of special form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/071—Winding coils of special form
- H01F41/074—Winding flat coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/082—Devices for guiding or positioning the winding material on the former
- H01F41/084—Devices for guiding or positioning the winding material on the former for forming pancake coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/082—Devices for guiding or positioning the winding material on the former
- H01F41/088—Devices for guiding or positioning the winding material on the former using revolving flyers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/096—Dispensing or feeding devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/098—Mandrels; Formers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
Definitions
- the present invention relates to a winding device for manufacturing an antenna coil used as a radiator for short-distance communication, wireless power transmission and reception, and the like, and an antenna coil manufactured thereby.
- the antenna coil is used as a radiator in a short-range communication antenna, a wireless power transmission antenna, a wireless power reception antenna, and the like.
- the antenna coil is mainly manufactured in a loop shape. Although the manufacture of the antenna coil was mainly performed manually, there was a problem in that an additional process such as flattening had to be performed due to irregular winding or protruding surface.
- an antenna coil is manufactured by automatically winding the coil through a winding device (ie, a winding device or a winding device).
- the present invention has been proposed in consideration of the circumstances, and a winding device for preventing unnecessary rotation of the metal wire when the metal wire is wound by forming a cut-out surface on the side surface of the rotation jig, and a loop-shaped antenna coil having at least one straight section aims to provide
- a winding device includes a jig for winding a metal wire by rotationally driving, the jig has a circular column shape having a first bottom surface and a second bottom surface and a side surface having a cut-out surface is formed, and is disposed in contact with the first bottom surface of the rotation jig and the rotation jig for winding the metal wire by rotating about the winding axis orthogonal to the first bottom surface and the second bottom surface, and the metal wire wound by the rotation jig is the same and a support plate for guiding it to be wound on a plane.
- the metal wire may be wound a plurality of times on the side surface of the rotating jig to form a loop-shaped flat coil having one or more straight sections.
- the cut surface may be orthogonal to the first bottom surface and the second bottom surface, and the rotary jig may have a straight section formed by the cut surface.
- the straight section may be a section parallel to the first base and the second base of the rotating jig and parallel to an imaginary straight line passing through the winding axis.
- the rotary jig may have a plurality of straight sections by forming a plurality of cut surfaces.
- the plurality of straight sections is a section parallel to one of the virtual straight lines passing through the winding axis and parallel to the first and second bottom surfaces of the rotating jig, and the plurality of straight sections may be parallel to different virtual straight lines. .
- the antenna coil manufactured by the winding device is a loop wound around a winding shaft a plurality of times on the same plane, a first end disposed in an inner circumferential area of the loop, and an outer circumferential area of the loop. and a second end disposed, wherein the loop has at least one straight section.
- the straight line section may be a section in which a virtual straight line parallel to the same plane and passing through the center point of the loop and the loop are arranged in parallel.
- the loop may have a plurality of straight line sections in which the loop is parallel to one of the imaginary straight lines that are parallel to the same plane and pass through the center point of the loop.
- the winding apparatus has an effect of improving workability while reducing the defect rate by uniformly winding the metal wire by forming a straight section on the rotating jig.
- the winding device forms a straight section on the rotating jig to prevent unnecessary rotation of the metal wire, thereby preventing the metal wire from being wound non-uniformly or from lowering the flatness during the winding process, thereby reducing the work flow of the operator and unnecessary mass production consumption time has the effect of shortening the
- the winding device has an effect of manufacturing an antenna coil in which a metal wire is uniformly wound to maintain flatness.
- FIG 1 and 2 are views for explaining a winding device according to an embodiment of the present invention.
- Figure 3 is a view for explaining the jig of Figure 1;
- Fig. 4 is a view for explaining an example of the rotation jig of Fig. 3;
- FIG. 5 is a view for explaining a modified example of the rotation jig of FIG.
- FIG. 6 is a view for explaining an example of an antenna coil manufactured by a winding device according to an embodiment of the present invention.
- FIG. 7 and 8 are views for explaining a modified example of the antenna coil manufactured by the winding device according to the embodiment of the present invention.
- the winding device is configured to include a wire supply device 100 , a jig 200 , and a driving device 300 .
- the wire supply device 100 supplies the metal wire 10 to the jig 200 .
- the wire supply device 100 supplies the metal wire 10 wound on the bobbin to the jig 200 .
- the wire supply device 100 may supply the metal wire 10 to the jig 200 through a separate driving source.
- the wire supply device 100 may supply the metal wire 10 to the jig 200 by tension generated as the jig 200 rotates.
- the jig 200 is rotated by the driving device 300 and winds the metal wire 10 supplied from the wire supply device 100 to manufacture a loop-shaped antenna coil.
- the antenna coil is a loop-shaped planar coil wound around an imaginary winding axis orthogonal to a plane a plurality of times.
- the jig 200 is configured to include a rotating jig 220 and a support plate 240 .
- a rotating jig 220 and a support plate 240 .
- it has been illustrated and described as including only the support plate 240 disposed on the first bottom surface of the rotation jig 220 in order to easily explain the embodiment of the present invention, but is not limited thereto.
- it may be configured to further include another support plate (not shown) disposed on the second bottom surface of the rotation jig 220 and facing the support plate 240 . .
- the rotating jig 220 is rotated by the driving device 300 and is formed in a cylindrical shape having a first bottom surface and a second bottom surface and a side surface facing each other.
- the rotation jig 220 is rotated by the driving device 300 , and rotates around a virtual rotation axis orthogonal to the first and second bottom surfaces of the rotation jig 220 .
- the metal wire 10 supplied from the wire supply device 100 is a loop-shaped antenna that winds the rotating jig 220 a plurality of times with the rotating jig 220 as a central axis as the rotating jig 220 rotates. to form a coil (ie, a planar coil).
- the rotating jig 220 When the rotating jig 220 is configured to have a height lower than the thickness of the metal wire 10 , the metal wire 10 may be loosened or smoothness may be lowered in the process of winding the metal wire 10 . Accordingly, the rotation jig 220 is configured to have a height equal to or greater than the thickness of the metal wire 10 .
- the fitting hole 223 is disposed on the inner periphery of the rotation jig 220 when the rotation jig 220 is viewed from the upper surface.
- the fitting hole 223 is formed by removing a portion of the second bottom surface of the rotating jig 220 , and fixedly supports the end of the metal wire 10 supplied from the wire supply device 100 .
- the fitting hole 223 may be formed in various shapes such as a circle, a rectangle, and the like.
- the guide groove 224 guides a path through which the metal wire 10 having an end fixed and supported in the fitting hole 223 is discharged to the outside of the rotation jig 220 .
- the guide groove 224 is formed from the fitting hole 223 to the outer periphery of the rotating jig 220 .
- the guide groove 224 is formed to communicate from the fitting hole 223 to the outer periphery of the rotating jig 220 .
- the rotating jig 220 When the rotating jig 220 is formed in a cylindrical shape (that is, a circular shape when viewed from the upper surface of the rotating jig 220), unnecessary rotation occurs in the metal wire 10 in the process of winding the metal wire 10.
- the winding uniformity may be deteriorated, or the flatness of the antenna coil may be deteriorated.
- the cut surface 221 is formed on the side surface of the rotating jig 220 .
- the cut surface 221 is formed by cutting a part of the rotation jig 220 .
- the cut surface 221 is formed on the side surface of the rotation jig 220 .
- the cut surface 221 forms a straight section A in a portion of the circular rotation jig 220 .
- the straight section (A) may be defined as a section in which an imaginary straight line passing through the center point of the rotation jig 220 and the cut surface 221 are parallel.
- the cut surface 221 has a rectangular shape formed by cutting a part of the rotation jig 220 in a direction orthogonal to the first and second bottom surfaces of the rotation jig 220 , and a straight section on the rotation jig 220 . (A) to form. Accordingly, the metal wire 10 is wound in a loop shape having a straight section (A) by winding the rotating jig 220 a plurality of times.
- the winding device can prevent unnecessary rotation of the metal wire 10 while minimizing the design change of the antenna coil by forming the straight section A on the rotating jig 220 .
- the winding device may improve workability while uniformly winding the metal wire 10 by forming the straight section A on the rotating jig 220 .
- the winding device prevents unnecessary rotation of the metal wire 10 by forming a straight section A on the rotating jig 220, so that the metal wire 10 is unevenly wound or flatness is reduced during the winding process. This can reduce the worker's work flow and shorten the unnecessary mass production consumption time.
- a plurality of cut surfaces 221 may be formed in the rotation jig 220 to form a plurality of straight sections A1 and A2 and A1 to A3 . Accordingly, the metal wire 10 may be wound in a loop shape having a plurality of straight sections A1 and A2 and A1 to A3 by winding the rotation jig 220 a plurality of times.
- the support plate 240 is disposed on the first bottom surface of the rotation jig 220 .
- the support plate 240 is formed of a plate-shaped base material and is disposed on the first bottom surface of the rotation jig 220 .
- the support plate 240 may be coupled to the rotating jig 220 and configured to rotate together with the rotating jig 220 .
- the support plate 240 supports the metal wire 10 that winds the rotation jig 220 by the rotation of the rotation jig 220 to guide the metal wire 10 to be wound on the same plane.
- the support plate 240 supports (guides) the metal wire 10 wound on the rotating jig 220 so that smoothness of the antenna coil is maintained during the winding process.
- the driving device 300 rotates the jig 200 by applying a rotational force to the jig 200 .
- the driving device 300 is configured as a motor to rotate the jig 200 as an example.
- the antenna coil 400 manufactured by the winding device according to an embodiment of the present invention is formed in a loop shape having a first end T1 and a second end T2 .
- the first end T1 of the antenna coil 400 is disposed in the inner circumferential area of the loop
- the second end T2 of the antenna coil 400 is disposed in the outer circumferential area of the loop.
- the antenna coil 400 is formed in a circular loop shape, and has a straight section 410 .
- the antenna coil 400 has a straight line section 410 arranged parallel to a virtual straight line passing through the center point of the loop shape formed by the antenna coil 400 .
- the antenna coil 400 is formed in a circular loop shape and may have a plurality of straight sections 410 .
- the antenna coil 400 has a plurality of straight line sections 410 arranged parallel to one of the virtual straight lines passing through the center point of the loop shape formed by the antenna coil 400 .
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims (10)
- 회전 구동하여 금속 와이어를 권취하는 지그를 포함하고,상기 지그는,제1 밑면, 제2 밑면, 절개면이 형성된 옆면을 갖는 원 기둥 형상으로 형성되고, 상기 제1 밑면 및 상기 제2 밑면과 직교하는 권취 축을 중심으로 회전하여 상기 금속 와이어를 권취하는 회전 지그; 및상기 회전 지그의 제1 밑면에 면접하여 배치되고, 상기 회전 지그에 의해 권취되는 상기 금속 와이어가 동일 평면 상에서 권취되도록 가이드하는 지지판을 포함하는 와인딩 장치.
- 제1항에 있어서,상기 금속 와이어는 상기 회전 지그의 옆면을 복수 회 권회하여 하나 이상의 직선 구간을 갖는 루프 형상의 평면 코일을 형성하는 와인딩 장치.
- 제1항에 있어서,상기 절개면은 상기 제1 밑면 및 상기 제2 밑면과 직교하는 와인딩 장치.
- 제1항에 있어서,상기 회전 지그는 상기 절개면에 의해 형성된 직선 구간을 갖는 와인딩 장치.
- 제4항에 있어서,상기 직선 구간은,상기 회전 지그의 제1 밑면 및 제2 밑면과 평행하고 상기 권취 축을 지나는 가상의 직선과 평행한 구간인 와인딩 장치.
- 제1항에 있어서,상기 회전 지그는 복수의 절개면이 형성되어 복수의 직선 구간을 갖는 와인딩 장치.
- 제6항에 있어서,상기 복수의 직선 구간은,상기 회전 지그의 제1 밑면 및 제2 밑면과 평행하고 상기 권취 축을 지나는 가상의 직선들 중에서 하나와 평행한 구간이고,상기 복수의 직선 구간은 서로 다른 가상의 직선과 평행한 와인딩 장치.
- 동일 평면 상에서 권취 축을 복수 회 권회하는 루프;상기 루프의 내주 영역에 배치된 제1 단부; 및상기 루프의 외주 영역에 배치된 제2 단부를 포함하고,상기 루프는 하나 이상의 직선 구간을 갖는 안테나 코일.
- 제8항에 있어서,상기 직선 구간은,상기 동일 평면과 평행하고 상기 루프의 중심점을 지나는 가상의 직선과 상기 루프가 평행하게 배치된 구간인 안테나 코일.
- 제8항에 있어서,상기 루프는,상기 동일 평면과 평행하고 상기 루프의 중심점을 지나는 가상의 직선들 중에서 하나와 상기 루프가 평행하게 배치된 복수의 직선 구간을 갖는 안테나 코일.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/285,845 US20240186063A1 (en) | 2021-04-06 | 2022-04-04 | Winding apparatus and antenna coil manufactured thereby |
| CN202280034004.4A CN117296113A (zh) | 2021-04-06 | 2022-04-04 | 卷绕装置及其制造的天线线圈 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210044390A KR20220138573A (ko) | 2021-04-06 | 2021-04-06 | 와인딩 장치 및 이에 의해 제조된 안테나 코일 |
| KR10-2021-0044390 | 2021-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022215971A1 true WO2022215971A1 (ko) | 2022-10-13 |
Family
ID=83545490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2022/004776 Ceased WO2022215971A1 (ko) | 2021-04-06 | 2022-04-04 | 와인딩 장치 및 이에 의해 제조된 안테나 코일 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240186063A1 (ko) |
| KR (1) | KR20220138573A (ko) |
| CN (1) | CN117296113A (ko) |
| WO (1) | WO2022215971A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090109790A (ko) * | 2008-04-16 | 2009-10-21 | 세우산전(주) | 모터 코일 및 자동 권선 장치용 권선 지그 |
| KR101622557B1 (ko) * | 2015-03-27 | 2016-05-20 | 주식회사 모비너스 | 박형 스파이럴 안테나 |
| US20170317517A1 (en) * | 2016-04-28 | 2017-11-02 | Cyntec Co., Ltd. | Wireless charging coil with a high q factor |
| KR101926594B1 (ko) * | 2015-08-20 | 2018-12-10 | 주식회사 아모텍 | 무선충전형 안테나유닛 및 이를 포함하는 무선전력 충전모듈 |
| CN209447679U (zh) * | 2019-01-31 | 2019-09-27 | 江苏伟正电气科技有限公司 | 一种干式变压器饼式线圈的专用绕线设备 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0804799B1 (de) * | 1995-01-20 | 1998-09-09 | David Finn | Vorrichtung und verfahren zum herstellen einer spulenanordnung |
| KR101943558B1 (ko) | 2018-07-18 | 2019-01-31 | (주)진영에이앤티 | 평면코일의 권취장치 |
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2021
- 2021-04-06 KR KR1020210044390A patent/KR20220138573A/ko not_active Ceased
-
2022
- 2022-04-04 WO PCT/KR2022/004776 patent/WO2022215971A1/ko not_active Ceased
- 2022-04-04 US US18/285,845 patent/US20240186063A1/en active Pending
- 2022-04-04 CN CN202280034004.4A patent/CN117296113A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090109790A (ko) * | 2008-04-16 | 2009-10-21 | 세우산전(주) | 모터 코일 및 자동 권선 장치용 권선 지그 |
| KR101622557B1 (ko) * | 2015-03-27 | 2016-05-20 | 주식회사 모비너스 | 박형 스파이럴 안테나 |
| KR101926594B1 (ko) * | 2015-08-20 | 2018-12-10 | 주식회사 아모텍 | 무선충전형 안테나유닛 및 이를 포함하는 무선전력 충전모듈 |
| US20170317517A1 (en) * | 2016-04-28 | 2017-11-02 | Cyntec Co., Ltd. | Wireless charging coil with a high q factor |
| CN209447679U (zh) * | 2019-01-31 | 2019-09-27 | 江苏伟正电气科技有限公司 | 一种干式变压器饼式线圈的专用绕线设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117296113A (zh) | 2023-12-26 |
| KR20220138573A (ko) | 2022-10-13 |
| US20240186063A1 (en) | 2024-06-06 |
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