I 1111111111111111 11111 111111111111111 111111111111111 IIIII lll111111111111111
`
`US009806565B2
`
`US 9,806,565 B2
`
`c12) United States Patent
`(IO) Patent No.:
`(45)Date of Patent:
`Oct. 31, 2017
`
`
`An et al.
`
`(54)WIRELESS POWER RECEIVER AND
`
`METHOD OF MANUFACTURING THE SAME
`
`
`
`(71)Applicant: LG INNOTEK CO., LTD., Seoul (KR)
`
`(58)Field of Classification Search
`
`
`
`
`CPC ..... H04B 5/0037; H04B 5/0081; H01F 41/14;
`H0lF 38/14
`
`USPC ........................................... 307/104; 713/300
`
`
`
`See application file for complete search history.
`
`(72)Inventors: Jeong Wook An, Seoul (KR); Jung Oh
`
`Lee, Seoul (KR); Sung Hyun Leem,
`
`Seoul (KR); Yang Hyun Kim, Seoul
`(56)
`(KR)
`
`
`
`(73)Assignee: LG INNOTEK CO., LTD., Seoul (KR)
`
`
`
`
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`4,947,180 A * 8/1990 Schotz ..................... HOlQ 7/00
`
`
`
`the term ofthis ( *) Notice:Subject to any disclaimer,
`
`
`343/743
`
`
`
`patent is extended or adjusted under 35
`6,008,622 A 12/1999 Nakawatase
`
`
`
`U.S.C. 154(b) by 487 days.
`(Continued)
`
`(21)Appl. No.: 13/663,012
`
`
`
`(22)Filed:Oct. 29, 2012
`
`(65)
`
`Prior Publication Data
`
`US 2013/0249302 Al Sep. 26, 2013
`
`
`
`
`
`(30) Foreign Application Priority Data
`
`
`
`
`
`FOREIGN PATENT DOCUMENTS
`
`CN
`
`CN
`
`1784510 A 6/2006
`
`101256876 A 9/2008
`(Continued)
`
`OTHER PUBLICATIONS
`
`Murata (JP 2012-191134)-Translated patent; Oct. 2012.*
`
`
`
`
`
`
`Mar. 23, 2012 (KR) ........................ 10-2012-0029987
`(Continued)
`
`
`Jul. 19, 2012 (KR) ........................ 10-2012-0079004
`
`(51)Int. Cl.
`H04B 5100
`
`H02J 50/10
`
`H02J 50112
`
`B60L 11118
`
`Primary Examiner - Daniel Cavallari
`
`
`
`
`
`Assistant Examiner - James P Evans
`
`
`
`(74)Attorney, Agent, or Firm - Saliwanchik, Lloyd &
`Eisenschenk
`
`ABSTRACT
`
`(2006.01)
`(2016.01)
`(2016.01)
`(2006.01)
`(2006.01)
`G06K 19107
`(Continued)
`(57)
`(52)U.S. Cl.
`
`CPC ............. H02J 50/10 (2016.02); B60L 111182
`
`A wireless power receiver can include a magnetic substrate
`
`
`
`
`
`(2013.01); G06K 1910723 (2013.01); H0lF
`
`
`
`
`and a coil configu red to wirelessly receive power. The coil
`
`38/14 (2013.01); H0lF 41114 (2013.01); H02J
`
`
`51005 (2013.01); H02J 71025 (2013.01); H02J
`
`can be formed as a conductive layer on the magnetic
`
`
`17100 (2013.01); H02J 50112 (2016.02); H04B
`
`
`
`substrate. A connecting unit can be disposed in a receiving
`
`
`510037 (2013.01); H04B 510081 (2013.01);
`
`
`
`
`space of the magnetic substrate and can be connected to the
`
`
`
`H04W 4/008 (2013.01); Y02T 10/7005
`coil unit.
`
`
`
`(2013.01); Y02T 10/7072 (2013.01); Y02T
`90/122 (2013.01);
`(Continued)
`
`
`
`20 Claims, 21 Drawing Sheets
`
`
`
`210 220 230
`'------------v-
`
`200
`
`330 310 320
`'------------v-
`
`300
`
`Ex.1001
`APPLE INC. / Page 1 of 33
`
`

`

`US 9,806,565 B2
`
`Page 2
`
`FOREIGN PATENT DOCUMENTS
`
`(2016.01)
`(2016.01)
`(2006.01)
`(2006.01)
`(2006.01)
`(2009.01)
`
`CN
`
`(51)Int. Cl.
`H02J 5100
`
`H02J 7102
`
`H0JF 41114
`
`H02J 17100
`
`H0JF 38/14
`
`H04W 4/00
`
`12/2010
`101924398 A
`
`6/2011
`
`102083280 A
`CN
`2/2012
`102360718 A
`CN
`6/1981
`S-56-78415 U
`JP
`5/1986
`61-69811
`JP
`4/1992
`H-04-51115 U
`JP
`9/1994
`6-267746
`JP
`(52)U.S. Cl.
`3/1995
`
`H-07-74038 A
`JP
`CPC ................ Y02T 90/14 (2013.01); Y02T 90/16
`
`
`3/1996
`
`H08-79976 A
`JP
`10/1998
`
`Hl0282232 A
`JP
`
`
`(2013.01); YJOT 29/4902 (2015.01)
`1/2001
`
`2001027687 A
`JP
`10/2002
`2002-299138
`JP
`4/2004
`
`2004110854 A
`JP
`12/2004
`
`2004364199 A
`JP
`2/2006
`
`2006-042519 A
`JP
`2/2008
`2008-27015
`JP
`7/2008
`2008-172872
`JP
`7,259,672 B2 * 8/2007 Takei G06K 19/067
`9/2008
`2008-205215
`JP
`340/572.1
`9/2008
`2008-210861
`JP
`
`8,947,189 B2 * 2/2015 Maruyama .......... H0lF 17/0013
`2/2009
`
`2009033106 A
`JP
`29/602.1
`5/2011
`
`2011097 534 A
`JP
`1/2012
`
`2012-010533 A
`JP
`1/2012
`
`2012019302 A
`JP
`KR
`8/2008
`10-2008-0074640
`2/2012
`
`10-2012-0016778
`9/2014
`
`10-2014-0113205 A
`3/2012
`M424550 Ul
`1/2012
`
`2012008693 A2
`11/2012
`
`WO-2012150293 Al
`
`(56)
`
`
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`
`
`
`
`2003/0141590 Al
`
`7/2003 Kamiya et al.
`2005/0046573 Al
`
`3/2005 Velasco et al.
`
`2005/0072595 Al
`4/2005 Cho
`2005/0116874 Al
`
`6/2005 El-Mahdawy et al.
`
`2006/0166506 Al
`7/2006 Okawa et al.
`KR
`
`2007/0007661 Al
`
`1/2007 Burgess et al.
`TW
`
`2007 /0020932 Al
`
`1/2007 Maruyama et al.
`WO
`
`2007/0095913 Al*
`
`5/2007 Takahashi . G06K 7/10336
`WO
`235/451
`
`KR
`
`OTHER PUBLICATIONS
`
`Office Action dated Nov. 11, 2013 in Korean Application No.
`
`
`
`Office Action dated Nov. 12, 2013 in Japanese Application No.
`
`
`
`European Search Report dated Jul. 1, 2014 in European Application
`
`
`
`Office Action dated Dec. 21, 2015 in Chinese Application No.
`
`
`
`European Search Report dated Feb. 4, 2016 in European Applica­
`
`2007 /0254432 Al
`
`11/2007 Yamazaki et al.
`
`
`2007 /0279002 Al
`12/2007 Partovi
`
`2008/0122570 Al
`5/2008 Takaishi
`Dainippon Printing (JP 2008-027015 Translation F5; Feb. 2008.*
`
`
`
`
`
`2008/0129439 Al
`
`6/2008 Nishikawa et al.
`
`
`
`Office Action dated Oct. 7, 2014 in Japanese Application No.
`
`2008/0154178 Al
`
`6/2008 Carter et al.
`2012-238615.
`
`2008/0164840 Al *
`
`
`7 /2008 Kato ................... HO lF 27 /2804
`
`
`320/108
`10-2012-0123375.
`2008/0197957 Al
`
`8/2008 Kondo et al.
`
`2008/0200210 Al
`8/2008 Lim et al.
`
`
`
`
`2008/0266748 Al
`10/2008 Lee
`2012-238616.
`
`2009/0029185 Al
`1/2009 Lee et al.
`
`
`
`
`
`2009/0058358 Al
`3/2009 Inoue et al.
`No. 12190583.0.
`
`2009/0115681 Al*
`
`5/2009 Lai ........................... H0lQ 3/26
`
`343/850
`201380026460.5.
`2010/0277004 Al
`
`11/2010
`Suzuki et al.
`
`
`
`2010/0289341 Al
`11/2010
`Ozaki et al.
`tion No. 13763524.9.
`
`2010/0308187 Al
`12/2010
`Lin
`
`International Search Report dated Jul. 25, 2013 in International
`
`2011/0127070 Al
`6/2011
`Ahn et al.
`
`Application No. PCT/KR2013/002406.
`
`2011/0267248 Al
`11/2011
`Remski et al.
`
`
`
`International Search Report dated Jul. 26, 2013 in International
`
`2011/0285494 Al
`11/2011
`Jeong et al.
`
`Application No. PCT/KR2013/002412.
`
`2012/0019075 Al
`1/2012
`Cho et al.
`
`2012/0044114 Al
`2/2012
`Eom et al.
`
`Office Action dated Jun. 2, 2016 in U.S. Appl. No. 14/387,521.
`
`2012/0049986 Al
`3/2012
`Cho et al.
`
`
`
`Office Action dated Jun. 29, 2016 in Chinese Application No.
`
`2012/0057322 Al
`3/2012
`Waffenschmidt
`201510084340.1.
`
`2012/0187767 Al*
`7/2012
`
`Kanno et al. . . . . . . . . . . . . . . . . . . . 307 /82
`
`
`
`Office Action dated Aug. 10, 2016 in Japanese Application No.
`
`2012/0248981 Al*
`10/2012
`
`
`Karalis .................... H03H 7/40
`2015-172306.
`315/70
`
`
`2013/0106198 Al* 5/2013 Kuk et al ...................... 307/104
`
`103130766.
`
`
`
`2013/0200716 Al* 8/2013 Kesler et al. ................. 307/104
`
`
`
`2013/0271328 Al* 10/2013 Nickel G01R29/10
`2015501586.
`343/703
`
`
`2014/0091640 Al 4/2014 Scholz et al.
`
`
`tion No. 16206292.1.
`
`
`2014/0091758 Al* 4/2014 Hidaka ................... H0lF 38/14
`
`
`320/108
`
`cation No. 17157643.2.
`2014/0226293 Al* 8/2014 Sato . G06K 19/00769
`361/752
`*cited by examiner
`
`
`
`
`
`Office Action dated Aug. 24, 2016 in Taiwanese Application No.
`
`
`
`
`
`2016/0118711 Al 4/2016 Finnetal.
`
`
`
`Office Action dated Feb. 14, 2017 in Japanese Application No.
`
`European Search Report dated Aug. 8, 2017 in European Applica­
`
`European Search Report dated Aug. 29, 2017 in European Appli­
`
`Ex.1001
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`
`U.S. Patent Oct. 31, 2017 Sheet 1 of 21
`
`US 9,806,565 B2
`
`1000
`
`100
`
`330 310 320
`210 220 230
`
`300
`
`200
`
`FIG.1
`
`Ex.1001
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`U.S. Patent Oct. 31, 2017
`Sheet 2 of 21
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`US 9,806,565 B2
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`1000
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`100
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`300 A1
`
`FIG. 2
`
`Ex.1001
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`
`U.S. Patent
`Oct. 31, 2017 Sheet 3 of 21
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`US 9,806,565 B2
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`1000
`
`330
`
`10
`
`220
`
`230
`
`110 120
`210
`�
`100
`
`FIG. 3
`
`110 120
`�
`100
`
`FIG. 4
`
`Ex.1001
`APPLE INC. / Page 5 of 33
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`
`U.S. Patent Oct. 31, 2017
`Sheet 4 of 21
`
`US 9,806,565 B2
`
`I
`
`110 120
`'----v--"
`100
`
`FIG. 5
`
`500
`
`201
`
`110 120
`'----v--"
`100
`
`FIG. 6
`
`FIG. 7
`
`Ex.1001
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`
`U.S. Patent Oct. 31, 2017 Sheet 5 of 21
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`US 9,806,565 B2
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`20
`
`10
`
`FIG. 8
`
`1000
`
`20
`
`10
`
`220
`
`110 120 210
`
`100
`
`FIG. 9
`
`Ex.1001
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`U.S. Patent
`Oct. 31, 2017
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`Sheet 6 of 21 US 9,806,565 B2
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`1000
`
`100
`
`630 610 620
`
`600
`
`300
`
`FIG. 10
`
`Ex.1001
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`
`U.S. Patent Oct. 31, 2017
`Sheet 7 of 21
`
`US 9,806,565 B2
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`1000
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`210 220 230
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`200
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`330 310 320
`
`300
`
`FIG. 11
`
`Ex.1001
`APPLE INC. / Page 9 of 33
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`
`U.S. Patent Oct. 31, 2017
`Sheet 8 of 21
`
`US 9,806,565 B2
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`1000
`
`100
`
`300 B1
`
`FIG. 12
`
`Ex.1001
`APPLE INC. / Page 10 of 33
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`U.S. Patent Oct. 31, 2017
`Sheet 9 of 21
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`US 9,806,565 B2
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`1000
`
`220
`
`230
`
`100
`21 0 ,---------1'---
`110 120
`
`20
`
`10
`
`FIG.13
`
`1000
`
`100
`
`330 310 320
`�
`210 220 230
`�
`
`300
`
`200
`
`FIG.14
`
`Ex.1001
`APPLE INC. / Page 11 of 33
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`
`U.S. Patent Oct. 31, 2017
`Sheet 10 of 21
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`US 9,806,565 B2
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`1000
`
`100
`
`300 c
`
`l
`
`FIG. 15
`
`Ex.1001
`APPLE INC. / Page 12 of 33
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`
`U.S. Patent
`Oct. 31, 2017 Sheet 11 of 21
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`US 9,806,565 B2
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`1000
`
`330
`
`230
`
`20
`
`10
`
`220
`
`230 140
`
`110 120
`210
`'-------------v
`100
`
`FIG.16
`
`110 120
`�
`100
`
`FIG.17
`
`Ex.1001
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`
`U.S. Patent Oct. 31, 2017 Sheet 12 of 21
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`US 9,806,565 B2
`
`D
`
`D
`
`110 120
`
`'---------y---'
`100
`
`FIG. 18
`
`140
`
`110 120
`'---------y---'
`100
`
`FIG. 19
`
`Ex.1001
`APPLE INC. / Page 14 of 33
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`

`

`U.S. Patent
`Oct. 31, 2017 Sheet 13 of 21
`
`
`
`US 9,806,565 B2
`
`220
`
`230 140
`
`110 120
`210
`�
`100
`
`FIG. 20
`
`1000
`
`20
`
`10
`
`220
`
`230 140
`
`110 120
`210
`�
`100
`
`FIG. 21
`
`Ex.1001
`APPLE INC. / Page 15 of 33
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`

`

`
`
`U.S. Patent Oct. 31, 2017 Sheet 14 of 21 US 9,806,565 B2
`
`Q
`Inductance Resistance
`
`Freq[kHz]
`
`Setup1 : Sweep Setup 1 : Sweep Setup1 : Sweep
`
`130.000000
`10.012480
`10023.448082 0.809633
`
`
`
`131. 00000010021.543951 0.814464 10.028048
`
`132.000000
`0.819320 10. 043115
`10019.649417
`
`
`
`133.000000 10017.764376 0.824199 10.057691
`
`
`
`134.000000
`
`
`10015.888496 0.829101 10.071784
`
`10014.021426
`0.834027 10.085405
`135.000000
`
`136.000000
`
`10012. 163025 0.838976 10.098561
`
`
`10010. 312867 0.843948 10.111262
`137.000000
`
`
`
`
`
`138.000000 10008.470902 0.848942 10. 123517
`
`
`
`139.000000 10006.636764 0.853960 10. 135333
`
`
`
`
`
`
`
`140.000000 10004.810399 0.859000 10. 146721
`
`
`
`141. 00000010002.991358 0.864062 10. 157687
`
`
`
`142.000000 10001. 179585 0.869147 10. 168241
`
`0.874254 10. 178391
`143.000000 9999.374809
`
`
`
`
`
`144.000000 9997.577015
`
`10. 188142
`0.879383
`
`
`
`145.000000 9995.785687 0.884534 10. 197506
`
`
`
`
`
`146.000000 9994.000944 0.889706 10.206488
`
`0.894900 10.215097
`9992.222542
`147.000000
`
`
`
`148.000000 9990.450319 0. 900116 10.223339
`
`
`
`
`149.000000 9988.684063
`I 150.000000
`9986.923648
`151. 0000009985 . 169040
`
`10.231223
`0.905352
`10.238756 I
`0.910610
`10.245944
`0.915889
`
`
`
`
`
`152.000000 9983.419964 0.921189 10.252794
`
`9981 . 676290 0.926509 10.259313
`153.000000
`
`
`
`154.000000 9979.937950
`0.931850 10 .265510
`
`
`
`155.000000 9978.204783 0.937212 10.271388
`
`
`
`9976.476722
`156.000000
`0.942594 10.276956
`
`0.947996 10.282220
`157.000000
`9974.753596
`
`
`
`158.000000 9973.035485
`0.953418 10.287185
`
`
`
`159.000000 9971. 321833
`
`
`
`0.958860 10.291859
`
`10.296247
`160.000000 9969.613051
`0.964321
`
`FIG. 22
`
`Ex.1001
`APPLE INC. / Page 16 of 33
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`
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`U.S. Patent Oct. 31, 2017 Sheet 15 of 21 US 9,806,565 B2
`
`Q
`Inductance Resistance
`
`Freq[kHz]
`Setup1 : Sweep Setup 1 : Sweep Setup1 : Sweep
`130.000000
`
`10375.469101 0.760491 11.053420
`0.764922 11.072242
`131.000000
`10373.611592
`1 0371 . 760893 0.769376 11.090493
`132.000000
`
`133.000000 10369.916781 0.773853 11.108182
`
`10368.078898 0.778351 11. 125322
`134.000000
`0.782872 11. 141920
`10366.247102
`135.000000
`
`10364.421100 0.787415 11. 157989
`136.000000
`
`10362.600644 0.791979 11. 173537
`137.000000
`138.000000
`
`10360.785303 0.796565 11. 188574
`
`
`139.000000 10358.975165 0.801173 11.203109
`
`
`140.000000 10357. 169752 0.805802 11.217153
`
`141. 00000010355.369156 0.810452 11.230713
`
`
`142.00000010353.572957 0.815124 11.243801
`1 0351 . 780892 0.819816
`11.256422
`143.000000
`
`144.000000 10349.993078 0.824529 11.268591
`0.829263 11.280309
`145.000000
`10348.209063
`146.000000
`10346.428853 0.834018
`
`
`147.000000 10344.652133 0.838792 11.302441
`148.000000
`
`10342.878918 0.843587 11.312871
`
`149.000000 10341. 108850 0.848402 11.322886
`I 150.000000
`11.332499 I
`10339.342085 0.853237
`
`151. 000000 10337.578231 0.858092 11.341712
`152.000000
`
`10335.817245 0.862967 11.350536
`
`153.000000 10334.058946 0.867867 11.358980
`10332.303299
`0.872774 11.367050
`154.000000
`155.000000 10330.550019 0.877706
`
`156.000000 10328.799305
`0.882658 11.382099
`
`157.000000 10327.050748 0.887629 11.389091
`
`158.000000
`
`10325.304351 0.892618 11.395741
`159.000000
`
`10323.560143 0.897626 11.402053
`
`160.000000 1 0321 . 817935 0.902653 11.408035
`
`11.291589
`
`FIG. 23
`
`Ex.1001
`APPLE INC. / Page 17 of 33
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`U.S. Patent Oct. 31, 2017 Sheet 16 of 21 US 9,806,565 B2
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`600
`
`200
`
`FIG. 24
`
`600
`
`200
`
`FIG. 25
`
`Ex.1001
`APPLE INC. / Page 18 of 33
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`
`U.S. Patent Oct. 31, 2017 Sheet 17 of 21 US 9,806,565 B2
`
`FIG. 26
`
`Ex.1001
`APPLE INC. / Page 19 of 33
`
`

`

`U.S. Patent
`Oct. 31, 2017 Sheet 18 of 21
`
`
`
`US 9,806,565 B2
`
`200
`
`350 310 320 230
`
`FIG. 27
`
`120
`110
`100
`
`320
`
`310 350 340
`
`300
`
`0 0
`
`0
`O 0
`0
`
`O
`
`0
`
`700
`800
`
`720
`
`730
`
`FIG. 28
`
`Ex.1001
`APPLE INC. / Page 20 of 33
`
`

`

`
`
`U.S. Patent Oct. 31, 2017 Sheet 19 of 21 US 9,806,565 B2
`
`0}-201
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`700
`800
`
`FIG. 29
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`201
`700
`800
`
`FIG. 30
`
`g----..- 900
`�����i�i��z�z����z��������i����z�z����������
`201
`700
`800
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`FIG. 31
`
`Ex.1001
`APPLE INC. / Page 21 of 33
`
`

`

`
`U.S. Patent Oct. 31, 2017 Sheet 20 of 21
`
`US 9,806,565 B2
`
`910
`
`201
`
`700
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`800
`
`FIG. 32
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`800
`
`FIG. 33
`
`210
`
`600 600 230 220 230 620 610
`
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`+ + + + + + + + + + + + + + + + + + + + + +
`
`800
`
`700
`
`FIG. 34
`
`Ex.1001
`APPLE INC. / Page 22 of 33
`
`

`

`
`U.S. Patent
`Oct. 31, 2017
`Sheet 21 of 21
`
`US 9,806,565 B2
`
`320
`
`310 350
`340
`
`300
`
`700
`
`800
`
`30
`220
`
`FIG. 35
`
`100
`
`340
`310 350
`320
`o o oo Ir---------,---,-----;-------,----,
`o o o o
`O
`0 O O
`o o o o oo o o o I .....,_m:,,.,,--
`
`0
`
`-- ---,,,-=.----..,,.-,,\-,,,...,.-----.-,'7"7CT7,...---------�
`
`O O
`
`0
`
`300
`
`700
`
`800
`
`600 600
`
`FIG. 36
`
`Ex.1001
`APPLE INC. / Page 23 of 33
`
`

`

`US 9,806,565 B2
`
`METHOD OF MANUFACTURING THE SAME
`
`CROSS-REFERENCE TO RELATED
`APPLICATIONS
`
`BACKGROUND
`
`BRIEF SUMMARY
`
`1
`
`WIRELESS POWER RECEIVER AND
`
`
`2
`An embodiment provides a method capable of simplifying
`
`
`
`
`
`
`
`the manufacturing process for a wireless power receiver by
`
`
`
`
`
`disposing a coil unit inside a magnetic substrate.
`
`
`
`A wireless power receiver according to one embodiment
`
`
`
`
`
`5 includes a magnetic substrate and a coil configured to
`
`
`
`
`wirelessly receive power, wherein the coil is formed as a
`
`conductive layer on the magnetic substrate.
`
`
`
`This application claims the benefit under 35 U.S.C §119
`
`
`
`
`
`
`of Korean Patent Application Nos. 10-2012-0029987, filed A wireless power receiver according to one embodiment
`
`
`
`
`
`
`
`
`Mar. 23, 2012, and 10-2012-0079004, filed Jul. 19, 2012, includes a magnetic substrate and a coil a coil configured to
`10
`
`
`
`
`
`
`
`which are hereby incorporated by reference in their entirety. wirelessly receive power, wherein the coil is formed as a
`
`
`
`
`conductive layer at the magnetic substrate, wherein a part of
`
`
`
`
`the coil is disposed inside the magnetic substrate.
`
`
`
`
`A method of manufacturing a wireless power receiver for
`The embodiment relates to a wireless power receiver and
`
`
`
`
`
`
`wirelessly receiving power according to one embodiment
`15
`
`
`
`a method of manufacturing the same. In more particular, the
`
`
`
`
`includes forming a conductor on a protective film, forming
`
`
`
`
`embodiment relates to a wireless power receiver used for
`
`
`
`
`a conductive pattern by etching the conductor, connecting a
`
`
`
`wireless power transmission or an antenna to reduce a
`
`
`
`connecting unit to be connected to an external circuit to a
`
`
`
`thickness of the wireless power receiver and to simplify the
`
`
`
`
`
`connection terminal of the conductive pattern, obtaining a
`
`
`
`
`manufacturing process thereof and a method of manufac­
`
`
`
`space of a predeter­20 magnetic substrate having a receiving
`turing the same.
`
`
`
`mined shape corresponding to the connecting unit and
`
`
`
`
`A wireless power transmission or a wireless energy trans-
`
`
`
`
`disposing the magnetic substrate on the conductive pattern
`
`
`
`
`fer refers to a technology of wirelessly transferring electric
`
`
`while positioning the connecting unit in the receiving space.
`
`energy to desired devices. In the 1800's, an electric motor or
`
`
`
`
`
`
`
`According to one embodiment, the thickness of the wire-
`a transformer employing the principle of electromagnetic
`
`
`
`
`
`
`25 less power receiver can be remarkably reduced by directly
`induction has been extensively used and then a method of
`
`
`
`
`disposing the coil unit on a top surface of the magnetic
`
`transmitting electrical energy by irradiating electromagnetic
`
`
`
`
`
`substrate. According to one embodiment, the high power
`waves, such as radio waves or lasers, has been suggested.
`
`
`
`
`
`transmission efficiency can be ensured and communication
`
`
`Actually, electrical toothbrushes or electrical razors, which
`
`
`
`
`
`
`with external devices can be enabled by directly disposing
`
`
`
`30 the coil unit and the near field communication antenna on the
`are frequently used in daily life, are charged based on the
`
`
`
`principle of electromagnetic induction. The electromagnetic
`
`
`
`
`top surface of the magnetic substrate.
`
`induction refers to the generation of an electric current
`
`
`
`
`
`
`
`According to one embodiment, the manufacturing process
`
`
`
`
`through induction of a voltage when a magnetic field is
`
`
`
`for the wireless power receiver can be simplified by directly
`
`
`
`changed around a conductor. The electromagnetic induction
`
`
`
`
`disposing the coil unit on the magnetic substrate only
`35
`
`
`scheme has been successfully commercialized for electronic
`
`
`
`through laminating and etching processes.
`
`
`
`
`appliances having small sizes, but represents a problem in
`
`
`
`According to one embodiment, the thickness of the wire­
`
`that the transmission distance of power is too short.
`
`
`
`less power receiver can be remarkably reduced by forming
`
`
`
`
`Besides the electromagnetic induction scheme, the long­
`
`
`
`the conductive pattern inside the magnetic substrate.
`
`
`
`distance transmission using the resonance and the short-40
`
`
`According to one embodiment, the high power transmis-
`
`
`wavelength radio frequency has been suggested as the
`
`
`sion efficiency can be ensured by forming the conductive
`
`
`wireless energy transfer scheme.
`
`
`
`
`pattern inside the magnetic substrate and the communication
`
`
`
`
`However, in general, a wireless power receiver disposed
`
`
`
`
`with external devices can be enabled by using the near field
`in a terminal has a thick thickness and the manufacturing
`
`
`
`communication antenna.
`
`process thereof is complicated.
`According to one embodiment, the connecting unit is
`
`
`
`45
`
`
`
`
`disposed in the receiving space of the magnetic substrate so
`
`
`
`
`
`that the thickness of the wireless power receiver can be
`
`
`
`remarkably reduced as much as the thickness of the con­
`An embodiment provides a method capable of remarkably
`
`
`
`
`necting unit.
`
`
`
`
`reducing a thickness of a wireless power receiver by directly
`According to one embodiment, a tape substrate is used as
`
`
`
`
`50
`
`
`
`
`disposing a coil unit on a top surface of a magnetic substrate.
`
`
`the connecting unit so that the overall size of the wireless
`
`
`
`An embodiment provides a method capable
`
`power receiver of ensuring can be reduced.
`high power transmission efficiency and enabling communi­
`
`
`
`
`
`
`According to one embodiment, a lead frame is used as the
`
`
`
`
`
`
`cation with external devices by directly disposing a coil unit
`
`
`
`
`connecting unit, so the wiring layer included in the connect-
`
`
`
`and a near field communication antenna on a top surface of
`
`
`
`55 ing unit can be protected from the heat, external moisture or
`
`a magnetic substrate.
`
`
`impact and the mass production can be realized.
`
`
`
`An embodiment provides a method capable of simplifying
`
`
`
`According to one embodiment, the magnetic field directed
`
`
`
`the manufacturing process for a wireless power receiver by
`
`
`
`
`to the outside can be changed into the coil unit due to the
`
`
`
`
`directly disposing a coil unit on a magnetic substrate.
`
`
`
`conductive pattern formed in the magnetic substrate, so the
`
`
`
`An embodiment provides a method capable of remarkably
`
`
`
`60 power transmission efficiency can be improved, at the same
`
`
`
`
`reducing a thickness of a wireless power receiver by dis­
`
`
`
`
`time, the amount of the magnetic field leaked to the outside
`
`
`
`posing a coil unit inside a magnetic substrate.
`
`
`
`can be reduced so that the bad influence of the magnetic field
`
`
`
`An embodiment provides a method capable of ensuring
`
`
`exerted to the human body can be diminished.
`
`
`
`high power transmission efficiency and enabling communi­
`
`
`
`According to one embodiment, the wireless power
`
`
`
`
`cation with external devices by disposing a coil unit inside
`
`
`
`
`65 receiver can be manufactured only through the processes of
`
`
`
`a magnetic substrate and a near field communication antenna
`
`
`
`
`forming the pattern groove and inserting the coil unit, so that
`
`on a magnetic substrate.
`
`
`the manufacturing process can be simplified.
`
`Ex.1001
`APPLE INC. / Page 24 of 33
`
`

`

`3
`
`US 9,806,565 B2
`
`
`4
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`
`
`DETAILED DESCRIPTION
`Other various effects of the embodiments will be dis­
`
`
`
`
`closed directly or indirectly in the detailed description of the
`Hereinafter, exemplary embodiments will be described in
`
`
`
`embodiments.
`
`
`
`
`detail with reference to accompanying drawings so that
`
`
`5 those skilled in the art can easily work with the embodi­
`ments.
`Hereinafter, "conductive pattern" refers to the shape of a
`
`
`
`
`
`
`
`FIG. 1 is a perspective view illustrating a wireless power
`
`
`conductive layer and may be used to refer to a structure
`
`
`
`receiver 1000 according to the first embodiment;
`
`
`
`
`formed by a patterning process. "conductive layer" may be
`
`
`
`FIG. 2 is a plan view illustrating a wireless power receiver
`
`
`
`
`10 used interchangeably with "conductive pattern" and refers to
`
`
`1000 according to the first embodiment;
`
`
`
`
`a structure formed by methods including patterning, etching,
`
`
`FIG. 3 is a sectional view taken along line A-A' of a
`
`
`deposing, selective plating, and the like.
`
`
`
`connecting unit 300 of a wireless power receiver 1000
`FIG. 1 is a perspective view illustrating a wireless power
`
`
`
`shown in FIG. 2;
`
`
`
`
`receiver 1000 according to the first embodiment, FIG. 2 is a
`FIGS. 4 to 8 are views for explaining a method of
`
`
`
`
`15 plan view illustrating the wireless power receiver 1000
`
`
`
`
`manufacturing a wireless power receiver 1000 according to
`
`
`
`
`according to the first embodiment and FIG. 3 is a sectional
`one embodiment;
`
`
`view taken along line A-A' of a connecting unit 300 of the
`
`FIG. 9 is a sectional view taken along line A-A' of a
`
`
`wireless power receiver 1000 shown in FIG. 2.
`
`
`
`connecting unit 300 of a wireless power receiver 1000
`
`
`
`
`Referring to FIGS. 1 to 3, the wireless power receiver
`
`
`shown in FIG. 2 according to the second embodiment;
`
`
`
`20 1000 may include a magnetic substrate 100, a coil unit 200
`
`
`FIG. 10 is a plan view illustrating a wireless power
`
`and a connecting unit 300.
`
`
`
`receiver 1000 according to the third embodiment;
`The wireless power receiver 1000 may wirelessly receive
`
`
`
`
`
`
`FIG. 11 is a perspective view illustrating a wireless power
`
`
`power from a transmission side. According to one embodi­
`
`
`
`receiver 1000 according to the fourth embodiment;
`
`
`ment, the wireless power receiver 1000 may wirelessly
`
`
`FIG. 12 is a plan view illustrating a wireless power
`
`
`25 receive the power using electromagnetic induction. Accord­
`
`
`
`
`ing to one embodiment, the wireless power receiver 1000
`
`
`
`receiver 1000 according to the fourth embodiment;
`
`
`may wirelessly receive the power using resonance.
`
`FIG. 13 is a sectional view taken along line B-B' of a
`
`
`
`The electromagnetic induction and resonance may be
`
`
`
`connecting unit 300 of a wireless power receiver 1000
`used when transmitting the power using the magnetic field.
`
`
`
`shown in FIG. 12 according to the fourth embodiment;
`
`
`
`
`The magnetic substrate 100 may change the direction of
`
`
`FIG. 14 is a perspective view illustrating a wireless power 30
`
`
`
`the magnetic field received from the transmission side.
`receiver 1000 according to the fifth embodiment;
`
`
`
`
`The magnetic substrate 100 can reduce the amount of the
`
`
`FIG. 15 is a plan view illustrating a wireless power
`
`
`
`magnetic field to be leaked to the outside by changing the
`receiver 1000 according to the fifth embodiment;
`
`
`
`
`direction of the magnetic field received from the transmis-
`FIG. 16 is a sectional view taken along line C-C' of a
`
`35 sion side.
`
`wireless power receiver 1000 according to the fifth embodi­
`
`
`
`In detail, the magnetic substrate 100 changes the direction
`
`
`
`
`ment;
`
`
`
`
`of the magnetic field transferred from the transmission side
`FIGS. 17 to 21 are views for explaining a method of
`
`
`
`
`
`
`
`in the lateral direction such that the magnetic field can be
`
`
`
`
`manufacturing a wireless power receiver 1000 according to
`
`
`more concentrated onto the coil unit 200.
`
`the fifth embodiment;
`
`
`The magnetic substrate 100 can absorb some of the
`40
`
`
`FIG. 22 is a view for explaining variation of inductance,
`
`
`magnetic field received from the transmission side and
`resistance and Q values of a coil unit 200 as a function of a
`
`
`
`
`
`
`
`leaked to the outside to dissipate the magnetic field as heat.
`
`usable frequency when the coil unit 200 is disposed on a top
`
`
`
`
`
`
`If the amount of the magnetic field leaked to the outside is
`surface of a magnetic substrate according to the first
`
`
`
`
`
`
`
`
`
`reduced, the bad influence of the magnetic field exerted on
`embodiment;
`
`45 the human body can be reduced.
`
`
`FIG. 23 is a view for explaining variation
`
`
`
`Referring of inductance, to FIG. 3, the magnetic substrate 100 may
`
`
`include a magnet 110 and a support 120.
`resistance and Q values of a coil unit 200 as a function of a
`
`
`
`
`The magnet 110 may include a particle or a ceramic.
`usable frequency when the coil unit 200 is disposed in a
`
`
`
`
`The support 120 may include thermosetting resin or
`
`
`
`pattern groove formed in a magnetic substrate according to
`
`50 thermoplastic resin.
`
`the fifth embodiment;
`The magnetic substrate 100 may be prepared in the form
`
`
`
`
`
`
`
`FIG. 24 is an H-field for illustrating a radiation pattern of
`
`of a sheet and may have a flexible property.
`
`
`a magnetic field when a coil unit is disposed on a top surface
`
`
`
`Referring again to FIG. 1, the coil unit 200 may include
`
`
`
`of a magnetic substrate according to the first embodiment;
`
`
`
`
`
`a first connection terminal 210, a second connection termi­
`
`
`
`FIG. 25 is an H-field for illustrating a radiation pattern of
`
`nal 220 and a coil 230. The coil 230 may be formed as a
`
`a magnetic field when a coil unit is disposed in a pattern 55
`
`
`
`conductive layer or a conductive pattern.
`
`
`
`
`
`groove formed in a magnetic substrate according to the fifth
`
`
`
`
`The first connection terminal 210 is located at one end of
`embodiment;
`
`
`
`
`the coil 230 and the second connection terminal 220 is
`FIG. 26 is an exploded perspective view of a wireless
`
`
`
`
`
`provided at the other end of the coil 230.
`
`
`
`
`power receiver 1000 according to still another embodiment;
`The first and second connection terminals 210 and 220 are
`
`
`
`
`
`60
`
`
`FIG. 27 is a perspective view of a wireless power receiver
`
`
`
`necessary for connection with the connecting unit 300.
`
`
`
`1000 according to still another embodiment;
`
`
`
`The coil 230 may be formed as a conductive pattern which
`
`
`FIG. 28 is a sectional view of a wireless power receiver
`
`
`
`
`is obtained by winding a conductive line several times.
`
`
`
`
`1000 according to still another embodiment; and
`
`
`
`According to one embodiment, when viewed from the top,
`
`
`FIGS. 29 to 36 are views for explaining a method of 65
`
`
`
`the coil pattern may have a spiral shape. However, the
`
`
`
`
`manufacturing a wireless power receiver according to still
`
`
`
`embodiment is not limited thereto, and various patterns may
`
`another embodiment.
`be formed.
`
`Ex.1001
`APPLE INC. / Page 25 of 33
`
`

`

`5
`
`US 9,806,565 B2
`
`
`6
`
`A section taken along line A-A' of the connecting unit 3 00
`
`
`
`The coil unit 200 can be directly disposed on the top
`
`
`
`
`
`shown in FIG. 2 will be explained with reference to FIG. 3.
`
`
`surface of the magnetic substrate 100. According to one
`
`FIG. 3 is a sectional view taken along line A-A' of the
`
`
`embodiment, an adhesive layer (not shown) may be dis­
`
`
`
`connecting unit 300 of the wireless power receiver 1000
`
`
`
`posed between the coil unit 200 and the magnetic substrate
`5 shown in FIG. 2.
`100.
`Referring to FIG. 3, the first connection terminal 210, the
`
`
`
`
`The coil unit 200 may include a conductor. The conductor
`
`
`
`
`
`second connection terminal 220 and the coil 230 constituting
`
`
`
`
`
`may include a metal or an alloy. According to one embodi­
`
`
`
`
`the coil unit 200 are disposed on the top surface of the
`
`
`
`ment, the metal may include silver or copper, but the
`
`
`magnetic substrate 100.
`
`
`embodiment is not limited thereto.
`In the wireless power receiver 1000 according to the first
`
`
`
`
`The coil unit 200 may transfer the power, which is 10
`
`
`
`
`embodiment, the coil unit 200 is directly disposed on the top
`
`
`
`
`wirelessly received from the transmission side, to the con­
`
`
`
`
`
`
`surface of the magnetic substrate 100, so the overall thick­
`
`
`
`necting unit 300. The coil unit 200 can receive the power
`
`
`
`
`ness can be remarkably reduced when comparing with the
`
`
`
`from the transmission side using the electromagnetic induc­
`
`case in which the coil pattern is formed on an FPCB.
`tion or resonance.
`
`
`
`Preferably, the magnetic substrate 100 has a thickness of
`15
`
`
`
`The connecting unit 300 may include a first connection
`
`
`
`0.43 mm and the coil unit 200 has a thickness of0.1 mm, so
`
`
`
`terminal 310, a second connection terminal 320 and a
`
`
`
`the overall thickness is 0.53 mm. However, this numerical
`
`printed circuit board 330.
`
`value is illustrative purpose only.
`
`The first connection terminal 310 of the connecting unit
`
`
`
`
`That is, the thickness of the wireless power receiver 1000
`
`
`
`
`
`
`
`
`300 may be connected to the first connection terminal 210 of
`
`
`20 can be reduced by preparing the coil unit 200 in the form of
`
`
`
`the coil unit 200 and the second connection terminal 320 of
`
`
`
`a conductor, a conductive pattern or a thin film. Since the
`
`
`
`current trend has tended toward the slinmess, if the wireless
`
`
`
`the connecting unit 300 may be connected to the second
`
`
`
`
`power receiver 1000 is applied to the electronic device, such
`
`
`
`connection terminal 220 of the coil unit 200.
`
`
`
`
`as the portable terminal, the overall thickness of the portable
`
`
`
`
`The printed circuit board 330 may include a wiring layer
`
`
`25 terminal can be reduced and the power can be effectively
`
`
`
`
`and a receiver circuit, which will be described later, may be
`
`
`received from the transmission side.
`
`
`disposed on the wiring layer.
`
`
`
`The connecting unit 300 is directly disposed on the coil
`
`
`
`The connecting unit 300 connects the wireless power
`
`
`
`unit 200. Since the connecting unit 300 is directly disposed
`
`
`
`receiving circuit (not shown) with the coil unit 200 to
`
`
`on the coil unit 200, the coil unit 200 can be readily
`
`
`
`transfer the power received from the coil unit 200 to a load
`
`
`30 connected with the connecting unit 300.
`
`
`
`(not shown) through the wireless power receiving circuit.
`
`
`
`
`The first connection terminal 210 of the coil unit 200 is
`
`
`
`
`The wireless power receiving circuit may include a rectifier
`
`
`
`
`
`connected to the first connection terminal 310 of the con­
`
`
`circuit for converting AC power into DC power and a
`
`
`
`necting unit 300 through the solder 10.
`
`
`
`smoothing circuit for transferring the DC power to the load
`The second connection terminal 220 of the coil unit 200
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`after removing ripple components from the DC power.
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`FIGS. 2 and 3 are views for explaining
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`is connected the structure of the to the second connection termina