(12) United States Patent
`Hidaka et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 9,306.411 B2
`Apr. 5, 2016
`
`USOO9306411 B2
`
`(54) ELECTRONIC DEVICE INCLUDING
`NON-CONTACT CHARGING MODULE
`
`(75) Inventors: Akio Hidaka, Oita (JP): Takumi
`Naruse, Miyazaki (JP); Munenori
`Fujimura, Oita (JP); Kenichiro Tabata,
`Oita (JP): Tokuji Nishino, Oita (JP)
`(73) Assignee: Panasonic Intellectual Property
`Management Co., Ltd., Osaka (JP)
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 197 days.
`14/125,294
`Jun. 14, 2012
`PCT/UP2O12AOO3914
`
`(*) Notice:
`
`(21) Appl. No.:
`(22) PCT Filed:
`(86). PCT No.:
`S371 (c)(1),
`(2), (4) Date:
`Dec. 10, 2013
`(87) PCT Pub. No.: WO2012/172812
`PCT Pub. Date: Dec. 20, 2012
`Prior Publication Data
`US 2014/OO91758 A1
`Apr. 3, 2014
`Foreign Application Priority Data
`
`(65)
`
`(30)
`
`Jun. 14, 2011
`Jun. 14, 2011
`Jul. 13, 2011
`Jul. 13, 2011
`Jul. 13, 2011
`Jul. 14, 2011
`Aug. 31, 2011
`(51) Int. Cl.
`H02. 7/00
`H02. 7/02
`
`(JP) ................................. 2011-131948
`(JP) ................................. 2011-131950
`(JP) ................................. 2011-15455O
`(JP) ................................. 2011-154554
`(JP) ................................. 2011-154555
`(JP) ................................. 2011-155334
`(JP) ................................. 2011-188413
`
`(2006.01)
`(2006.01)
`(Continued)
`
`(52) U.S. Cl.
`CPC ................ H02J 7/025 (2013.01); H0IF38/14
`
`
`
`(2013.01); H04B5/0037 (2013.01); H04B
`5/0093 (2013.01); H01F 27/2871 (2013.01);
`H01 F.27/365 (2013.01); H04B5/0062
`(2013.01)
`
`(58) Field of Classification Search
`CPC ........ H02J 7/025; H01F 38/14: YO2T 90/122;
`B60L 11/182; Y02E 60/12
`USPC .......................................................... 32Of 108
`See application file for complete search history.
`References Cited
`
`(56)
`
`U.S. PATENT DOCUMENTS
`
`5, 198,647 A
`8,055.310 B2
`
`3, 1993 Mizuta
`11/2011 Beart et al.
`(Continued)
`FOREIGN PATENT DOCUMENTS
`
`CN
`CN
`
`T 2010
`101771283. A
`4/2011
`102O17353. A
`(Continued)
`OTHER PUBLICATIONS
`
`Brooke Crothers, Getting a look inside the iPhone 4, Nanotech The
`Circuits Blog CNET News, Jun. 22, 2010, 5 pages.
`(Continued)
`Primary Examiner — Arun Williams
`(74) Attorney, Agent, or Firm – Seed IP Law Group PLLC
`(57)
`ABSTRACT
`This communication apparatus makes it possible to have a
`non-contact charging module and a sheet antenna coexist,
`even in the case where there the non-contact charging module
`and the sheet antenna in the communication apparatus. The
`apparatus is provided with: a housing; a secondary-side non
`contact charging module, which is housed in the housing,
`receives power by means of electromagnetic induction, and
`has a first coil having a conducting wire wound thereon, and
`a first magnetic sheet facing the first coil; and an NFC
`antenna, which is housed in the housing, and has a second coil
`having a conducting wire wound thereon, and a second mag
`netic sheet facing the second coil. The secondary-side non
`contact charging module and the NFC antenna are not lami
`nated to each other.
`20 Claims, 29 Drawing Sheets
`
`Ex.1017
`APPLE INC. / Page 1 of 65
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`

`

`(51) Int. Cl.
`HOIF 38/14
`H04B5/00
`HOIF 27/28
`HOIF 27/36
`
`(2006.01)
`(2006.01)
`(2006.01)
`(2006.01)
`
`(56)
`
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`US 9,306.411 B2
`Page 2
`
`E.
`JP
`JP
`JP
`JP
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`JP
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`WO
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`FOREIGN PATENT DOCUMENTS
`obi. A
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`20110721 16 A
`4/2009
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`OTHER PUBLICATIONS
`
`nation Sh Report list, 4, So for corresponding
`Internationa App Ication No. PCT/JP2012/003914, 8 pages.
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`for corresponding CNApplication No. 201280039867.7, 3 pages.
`Extended European Search Report, dated Oct. 8, 2014, for corre
`sponding European Application No. 1280 1388.5-1556/2712053, 8
`pageS.
`
`* cited by examiner
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`.
`
`. 320, 108
`
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`Apr. 5, 2016
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`US 9,306.411 B2
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`\
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`to
`
`FIG. 1A
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`Ex.1017
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`U.S. Patent
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`Apr. 5, 2016
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`US 9,306.411 B2
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`FIG. fB
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`Ex.1017
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`Apr. 5, 2016
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`Sheet 3 of 29
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`US 9,306.411 B2
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`\
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`101
`
`FIG. 1 C
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`Apr. 5, 2016
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`4.
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`15
`
`FIG. 1D
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`30
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`FIG. 3
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`Apr. 5, 2016
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`Sheet 11 of 29
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`US 9,306.411 B2
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`
`
`---------------------------- 41
`211s 3-211
`
`i.
`2b
`: It 4th 42
`212
`22
`FIG. 8A
`
`211
`
`4.
`--21:-2a
`
`--------------------
`
`2b
`
`- Zi-N-42
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`Apr. 5, 2016
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`Sheet 12 of 29
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`US 9,306.411 B2
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`
`
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`
`
`
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`
`--MAGNET IS NOTUSED
`Yx
`
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`
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`KX
`g
`
`COLINNERDIAMETER (min)
`
`{X L VALUE OBTAINED WHEN MAGNET IS NOTUSED
`
`{} WALUE OBTAENED WHEN MAGNET IS USED
`
`FIG. 9
`
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`Apr. 5, 2016
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`US 9,306.411 B2
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`- 808
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`Sheet 14 of 29
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`US 9,306.411 B2
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`Ex.1017
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`U.S. Patent
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`Apr. 5, 2016
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`Sheet 15 Of 29
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`US 9,306.411 B2
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`Ex.1017
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`U.S. Patent
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`Apr. 5, 2016
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`Sheet 16 of 29
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`US 9,306.411 B2
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`FIG. 13
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`Apr. 5, 2016
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`Sheet 17 of 29
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`US 9,306.411 B2
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`58
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`Ex.1017
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`Apr. 5, 2016
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`Sheet 18 Of 29
`
`US 9,306.411 B2
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`3b
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`Apr. 5, 2016
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`Sheet 19 Of 29
`
`US 9,306.411 B2
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`
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`Ex.1017
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`U.S. Patent
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`Apr. 5, 2016
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`Sheet 20 Of 29
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`US 9,306.411 B2
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`100
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`105b
`
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`Apr. 5, 2016
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`Sheet 21 of 29
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`US 9,306.411 B2
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`100
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`Sheet 22 of 29
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`100
`N
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`5
`UPPER SURFACE 1-4
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`100
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`FIG. 26
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`FIG. 27
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`Sheet 25 of 29
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`5x
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`151y
`
`
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`103
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`FIG. 3OA
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`FIG. 3OB
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`Sheet 27 of 29
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`US 9,306.411 B2
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`1 O3
`
`O6
`
`REGION P
`
`REGION Q.
`
`REGON R
`
`O4
`
`O5
`
`SUBSTRATE AND BATTERY PACK MAYBE STACKED
`
`FIG 31
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`Sheet 28 Of 29
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`FIG. 32A
`
`FIG. 32B
`
`FIG. 32C
`
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`
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`
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`
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`
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`
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`Sheet 29 of 29
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`
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`FIG, 33A
`
`103
`
`105a
`
`3b
`
`2b
`
`106
`
`FIG. 33B
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`

`1.
`ELECTRONIC DEVICE INCLUDING
`NON-CONTACT CHARGING MODULE
`
`TECHNICAL FIELD
`
`The present invention relates to a communication appara
`tus including a plurality of plane coils and, more particularly,
`to a communication apparatus including non-contact charg
`ing modules and an antenna for near field communication.
`BACKGROUND ART
`
`In recent years, communication apparatuses such as por
`table terminal apparatuses have been provided with a sheet
`antenna for near field communication. As the sheet antenna,
`an NFC (Near Field Communication) antenna or the like is
`known, for example, which employs an RFID (Radio Fre
`quency IDentification) technique and uses a radio wave in a
`13.56 MHz band (see, for example, Patent Literature 1).
`Recently, a communication apparatus has also been pro
`posed, which includes a non-contact charging module
`mounted thereon and is configured to be charged in a non
`contact manner. In this charging system, a coil for power
`transmission and a coil for power reception are provided on a
`charger side and on a communication apparatus side, respec
`tively, and electric power is transmitted from the charger side
`to the communication apparatus side using electromagnetic
`induction between both the coils (see, for example, Patent
`Literature 2).
`As described above, in the communication apparatus, near
`field communication is enabled by the sheet antenna and
`non-contact charging is also enabled by the non-contact
`charging module,
`
`CITATION LIST
`
`Patent Literature
`
`10
`
`15
`
`25
`
`30
`
`35
`
`PTL 1
`Japanese Patent Application Laid-Open Publication No.
`2007-214754
`PLT 2
`Japanese Patent Application Laid-Open Publication No.
`2006-42519
`
`SUMMARY OF INVENTION
`
`Technical Problem
`
`40
`
`45
`
`In general, a reception-side non-contact charging module
`and a sheet antenna include coils and magnetic sheets. When
`non-contact charging is performed, aligning of a transmis
`Sion-side non-contact charging module (a primary-side) and
`50
`the reception-side non-contact charging module (a second
`ary-side) is performed. In general, the aligning of the modules
`is performed using the magnetic sheets or the coils. For this
`reason, when the aligning is not successful and the transmis
`Sion-side non-contact charging module is misaligned with the
`sheet antenna, the problem is that transmission efficiency of
`the non-contact charging is deteriorated.
`It is an object of the present invention to provide a com
`munication apparatus that can Suppress deterioration in trans
`mission efficiency of non-contact charging even when a non
`contact charging module and an NFC antenna are present in
`the communication apparatus.
`
`55
`
`60
`
`Solution to Problem
`
`A communication apparatus according to the present
`invention includes: a housing; a non-contact module housed
`
`65
`
`US 9,306,411 B2
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`2
`in the housing and configured to receive electric power
`through electromagnetic induction, the non-contact module
`including a first coil composed of a wound electrical line and
`a first magnetic sheet facing the first coil; and a sheet antenna
`housed in the housing and including a second coil composed
`of a wound electrical line and a second magnetic sheet facing
`the second coil. The non-contact charging module and the
`sheet antenna are not stacked.
`
`Advantageous Effects of Invention
`
`According to embodiments of the claimed communication
`apparatus, since hollow portions of the first and second coils
`face each other, it is possible to Suppress an error in aligning
`for non-contact charging and the first coil tends to receive a
`magnetic flux. Therefore, it is possible to Suppress deteriora
`tion in efficiency of power transmission of the non-contact
`charging.
`
`BRIEF DESCRIPTION OF DRAWINGS
`
`FIG. 1A is an assembled perspective view of a portable
`terminal apparatus in an embodiment of the present invention
`in the case where a secondary-side non-contact charging
`module is disposed between an NFC antenna and a battery
`pack;
`FIG. 1B is an assembled perspective view of the portable
`terminal apparatus in the embodiment of the present inven
`tion in the case where the NFC antenna is disposed between
`the secondary-side non-contact charging module and the bat
`tery pack;
`FIG. 1C is an assembled perspective view of the portable
`terminal apparatus in the embodiment of the present inven
`tion in the case where the secondary-side non-contact charg
`ing module is not stacked on the NFC antenna;
`FIG. 1D is an assembled perspective view of the portable
`terminal apparatus in the embodiment of the present inven
`tion in the case where the NFC antenna is a stick type:
`FIG. 2 is a block diagram showing a non-contact power
`transmitting apparatus in the embodiment of the present
`invention;
`FIG.3 is a perspective view showing the configuration of a
`non-contact charger in the embodiment of the present inven
`tion;
`FIG. 4 is a diagram showing a primary-side non-contact
`charging module in the embodiment of the present invention;
`FIGS. 5A to 5D are detailed diagrams showing the pri
`mary-side non-contact charging module in the embodiment
`of the present invention;
`FIG. 6 is a diagram showing the secondary-side non-con
`tact charging module in the embodiment of the present inven
`tion;
`FIGS. 7A to 7D are detailed diagrams showing the second
`ary-side non-contact charging module in the embodiment of
`the present invention;
`FIGS. 8A to 8D are diagrams showing a relation between
`the primary-side non-contact charging module including a
`magnet and the secondary-side non-contact charging module:
`FIG. 9 is a diagram showing a relation between the inner
`diameter of a coil and an L value of the coil;
`FIGS. 10A and 10B are schematic diagrams showing a
`positional relation of a magnet included in the other non
`contact charging module that performs power transmission
`with a non-contact charging module in the embodiment of the
`present invention;
`
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`3
`FIGS. 11A to 11E are conceptual diagrams of a magnetic
`sheet of the non-contact charging module in the embodiment
`of the present invention;
`FIG. 12 is a diagram showing a relation between an L value
`and the thickness of a center portion of a coil of the non
`contact charging module in the case where a magnet is used
`for aligning in the other non-contact charging module and the
`case where the magnet is not used in present embodiment;
`FIG. 13 is a perspective view of the NFC antenna in the
`embodiment of the present invention;
`FIG. 14 is a structural sectional view of the NFC antenna in
`the embodiment of the present invention;
`FIG. 15 is a conceptual diagram of a coil section of the
`stick-type NFC antenna in the embodiment of the present
`invention;
`FIG. 16 is a conceptual diagram of the stick-type NFC
`antenna in the embodiment of the present invention;
`FIG. 17 is a sectional view showing an arrangement
`example of non-contact charging modules and an NFC
`antenna in an embodiment of the present invention;
`FIG. 18 is a sectional view showing an arrangement
`example of non-contact charging modules and an NFC
`antenna in an embodiment of the present invention;
`FIG. 19 is a sectional view showing an arrangement
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`example of non-contact charging modules and an NFC
`antenna in an embodiment of the present invention;
`FIG. 20 is a sectional view showing an arrangement
`example of non-contact charging modules and an NFC
`antenna in an embodiment of the present invention;
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`FIG. 21 is a sectional view showing an arrangement
`example of non-contact charging modules and an NFC
`antenna in an embodiment of the present invention;
`FIG. 22 is a sectional view showing an arrangement
`example of the non-contact charging modules and the NFC
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`antenna in the embodiment of the present invention;
`FIG. 23 is a sectional view showing an arrangement
`example of non-contact charging modules and an NFC
`antenna in an embodiment of the present invention;
`FIG. 24 is a sectional view showing an arrangement
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`example of the non-contact charging modules and the NFC
`antenna in the embodiment of the present invention;
`FIG.25 is a diagram showing a first example of a coil shape
`in an embodiment of the present invention;
`FIG. 26 is a diagram showing a second example of the coil
`shape in the embodiment of the present invention;
`FIG. 27 is a diagram showing a third example of the coil
`shape in the embodiment of the present invention;
`FIG. 28 is a conceptual diagram showing lines of magnetic
`force generated from the NFC antenna and the secondary
`side non-contact charging module shown in FIG. 15:
`FIG. 29 is a diagram showing a positional relation between
`an NFC antenna and a metal plate in an embodiment of the
`present invention;
`FIGS. 30A and 30B are diagrams showing arrangement in
`a housing of the secondary-side non-contact charging module
`and the NFC antenna in the embodiment of the present inven
`tion;
`FIG.31 is a diagram showing the arrangement of a second
`ary-side non-contact charging module and an NFC antenna in
`the embodiment;
`FIGS. 32A to 32C are diagrams showing a lower housing
`and the secondary-side non-contact charging module in the
`embodiment; and
`FIGS. 33A and 33B are diagrams showing the lower hous
`ing, a camera module, and the secondary-side non-contact
`charging module in the embodiment.
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`DESCRIPTION OF EMBODIMENTS
`
`A communication apparatus according to the present
`invention includes: a housing; a non-contact charging module
`housed in the housing and configured to receive electric
`power through electromagnetic induction, the non-contact
`charging module including a first coil composed of a wound
`electrical line and a first magnetic sheet facing the first coil;
`and a sheet antenna housed in the housing and including a
`second coil composed of a wound electrical line and a second
`magnetic sheet facing the second coil. The non-contact charg
`ing module and the sheet antenna are not stacked.
`(Embodiment 1)
`Description of a Communication Apparatus
`An overview of a communication apparatus in an embodi
`ment of the present invention will be described below with
`reference to FIGS. 1A to 1D. FIG. 1A is an assembled per
`spective view of a portable terminal apparatus in an embodi
`ment of the present invention in the case where a secondary
`side non-contact charging module is disposed between an
`NFC antenna and a battery pack. FIG. 1B is an assembled
`perspective view of a portable terminal apparatus in the
`embodiment of the present invention in the case where the
`NFC antenna is disposed between the secondary-side non
`contact charging module and the battery pack. FIG. 1C is an
`assembled perspective view of the portable terminal appara
`tus in the embodiment of the present invention in the case
`where the secondary-side non-contact charging module is not
`stacked on the NFC antenna. FIG. 1D is an assembled per
`spective view of the portable terminal apparatus in the
`embodiment of the present invention in the case where the
`NFC antenna is a stick type. In FIGS. 1A to 1D, to facilitate
`understanding, the fronts and the backs of the secondary-side
`non-contact charging module and the NFC antenna are set in
`the opposite directions. That is, in the secondary-side non
`contact charging module and the NFC antenna, coils rather
`than magnetic sheets would essentially be disposed on lower
`housing 105a side.
`Portable terminal apparatus 100, which is an example of a
`communication apparatus, includes liquid crystal panel (dis
`play) 101, operation button (an input unit) 102, substrate 103.
`battery pack 104, and housing 105 (lower housing 105a and
`upper housing 105b) and further includes secondary-side
`non-contact charging module 42 and NFC antenna 51. Por
`table terminal apparatus 100 can perform near field commu
`nication using NFC antenna 51 and can be charged in a
`non-contact manner by secondary-side non-contact charging
`module 42. Of course, a function of performing call, elec
`tronic mail, or the like other than the near field communica
`tion may be added to portable terminal apparatus 100. The
`display is not limited to liquid crystal panel 101 and may
`employ a system different from the liquid crystal panel. Such
`as an organic EL display. In present embodiment, a largest
`control substrate (a main substrate) is referred to as substrate
`103
`Liquid crystal panel 101 is provided in upper housing
`105b. Liquid crystal panel 101 is a display unit that displays
`an image, a moving image, or the like. Liquid crystal panel
`101 is provided on the same surface as operation button 102
`in upper housing 105b.
`Operation button 102 is a button for operating portable
`terminal apparatus 100. A user can operate portable terminal
`apparatus 100 by pressing operation button 102. For example,
`the user can use operation button 102 to perform input of a
`telephone number of a counterpart, creation of a text of an
`electronic mail, or the like. Operation button 102 need not be
`an operation button of a mechanical structure as in the present
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`embodiment. Liquid crystal panel 101 may be a touch panel
`and may employ a soft key with which the user can operate
`portable terminal apparatus 100 by touching liquid crystal
`panel 101.
`Substrate 103 is provided on the rear surface of upper
`housing 105b in which liquid crystal panel 101 (or operation
`button 102) is provided. On substrate 103, circuit components
`for performing control of portable terminal apparatus 100, for
`example, receives information input from operation button
`102 and displays necessary information on the liquid crystal
`panel. Substrate 103 has a shape Such as a Substantial square
`shape, a Substantial rectangular shape, or a Substantial L
`shape. However, substrate 103 is not limited to such shapes
`and may have any other polygonal shape.
`Battery pack 104, which is an example of an electricity
`storing unit, can store electricity and Supply electric power to
`portable terminal apparatus 100 (e.g., liquid crystal panel 101
`or substrate 103). That is, portable terminal apparatus 100 is
`driven by electric power stored in battery pack 104.
`Secondary-side non-contact charging module (reception
`side non-contact charging module) 42 is Supplied with elec
`tric power from a primary-side non-contact charging module
`(a transmission-side non-contact charging module) described
`below using electromagnetic induction and transmits the
`received electric power to battery pack 104. Consequently,
`battery pack 104 can be charged without being directly con
`nected to a non-contact charger (details are described below)
`mounted with the primary-side non-contact charging module.
`NFC antenna 51, which is an example of a sheet antenna, is
`used as an antenna for near field communication. NFC
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`antenna 51 can also perform communication by performing
`transmission and reception using electromagnetic induction.
`The sheet antenna is not limited to NFC antenna 51 and only
`has to be an antenna of a magnetic field type that includes a
`plane coil and performs communication using a magnetic
`field. Driving power of NFC antenna 51 is obtained from a
`communication counterpart by electromagnetic induction in
`some case and is obtained from battery pack 104 in portable
`terminal apparatus 100 in other cases.
`In housing 105, substrate 103, battery pack 104, second
`ary-side non-contact charging module 42, and NFC antenna
`51 are housed.
`A camera unit is sometimes housed in housing 105. Pho
`tographing direction of the camera unit is Substantially the
`same as a power transmitting direction (a charging direction)
`45
`of secondary-side non-contact charging module 42 or a com
`munication direction of NFC antenna 51 and is a direction
`apart from housing 105 on the rear surface (lower housing
`105a that is the surface opposite to liquid crystal panel 101)
`side of housing 105. Therefore, photographing is difficultifa
`component is interposed between the camera unit and lower
`housing 105.a. It is possible to maintain high power transmis
`sion efficiency by bringing secondary-side non-contact
`charging module 42 as close as possible to primary-side non
`contact charging module 41 (see FIG. 3). That is, it is neces
`sary to place secondary-side non-contact charging module 42
`as close as possible to lower housing 105.a. Further, it is also
`necessary to place NFC antenna 51 close to lower housing
`105a in order to secure a large communication distance of
`NFC communication.
`In portable terminal apparatus 100 described above, in
`FIGS. 1A and 1B, secondary-side non-contact charging mod
`ule 42 and NFC antenna 51 are disposed to be placed one on
`top of the other. Consequently, it is possible to Suppress an
`alignment error for non-contact charging. That is, it is pos
`sible to Suppress deterioration in power transmission effi
`ciency of the non-contact charging.
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`In FIG. 1C, in portable terminal apparatus 100, secondary
`side non-contact charging module 42 is not disposed in the
`communication direction of NFC antenna 51. NFC antenna
`51 is not disposed in the charging direction of secondary-side
`non-contact charging module 42. Consequently, in portable
`terminal apparatus 100, secondary-side non-contact charging
`module 42 and NFC antenna 51 are allowed to coexist with
`each other.
`In FIG. 1D, portable terminal apparatus 100, which is an
`example of a communication apparatus, includes liquid crys
`tal panel (display) 101, operation button (input unit) 102.
`substrate 103, which is, for example, a metal body, battery
`pack 104, and housing 105 (lower housing 105a and upper
`housing 105b) and further includes secondary-side non-con
`tact charging module 42 and NFC antenna 151. The control
`substrate and metal body 103 may be separate. That is, a
`communication range of NFC antenna 151 of the present
`invention depends on an arrangement relation between the
`metal body and NFC antenna 151. Therefore, when only
`substrate 103, which is not a metal body, is provided, it is
`difficult to expand the communication range of NFC antenna
`151. In the present embodiment, metal body 103 will be
`described as a control Substrate. However, the communica
`tion range of NFC antenna 151 may be expanded using an
`alternative metal body of portable terminal apparatus 100,
`other than metal body 103.
`In portable terminal apparatus 100, housing 105 is a hexa
`hedron, the bottom surface of which is substantially rectan
`gular. Housing 105 is formed thin in a stack direction of lower
`housing 105a and upper housing 105b. In the present embodi
`ment, NFC antenna 151 is disposed on one end portion 105c
`side on the short side of the rectangular bottom surface.
`Secondary-side non-contact charging module 42 is disposed
`on the other end portion 105d side on the short side of the
`bottom surface. Battery pack104 is disposed on the other end
`portion 105d side.
`NFC antenna 151 is placed on lower housing 105.a. A
`terminal extends from metal body 103 to NEC antenna 151.
`Therefore, NFC antenna 151 is connected to metal body 103
`by fitting lower housing 105a and upper housing 105b
`together. Of course, NFC antenna 151 may be placed on metal
`body 103. NFC antenna 151 may be disposed on upper hous
`ing 105b side of metal body 103. This is because NFC antenna
`151 of the present invention can generate a magnetic flux on
`the opposite side around metal body 103. This will be
`described in detail below.
`With the structure described above, portable terminal appa
`ratus 100 can be mounted with both of secondary-side non
`contact charging module 42 and NFC antenna 151.
`Before describing a reason why secondary-side non-con
`tact charging module 42 and NFC antenna 151 can be allowed
`to coexist with each other, the non-contact powertransmitting
`apparatus (including secondary-side non-contact charging
`module 42), NFC antenna 51 (the sheet antenna), and NFC
`antenna 151 (the stick type) are described. In the following
`description, the non-contact power transmitting apparatus
`will be described with reference to FIGS. 2 to 9, NFC antenna
`51 will be described with reference to FIGS. 13 and 14, and
`NFC antenna 151 will be described with reference to FIGS.
`15 and 16.
`Description of System of Non-contact Charging Module
`FIG. 2 is a block diagram illustrating a non-contact power
`transmitting apparatus according to an embodiment of the
`present invention.
`The non-contact power transmitting apparatus includes
`primary-side non-contact charging module 41 (transmission
`side non-contact charging module) and secondary-side non
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`contact charging module 42 (reception-side non-contact
`charging module). The non-contact power transmitting appa
`ratus transmits power from primary-side non-contact charg
`ing module 41 to secondary-side non-contact charging mod
`ule 42 using an electromagnetic induction action. The non
`contact power transmitting apparatus is used in transmitting
`power of about 1 W to about 5 W or less. The frequency of
`power transmission is about 110 to 205 kHz. Primary-side
`non-contact charging module 41 is mounted to a charger and
`secondary-side non-contact charging module 42 is mounted
`to, for example, a mobile phone, a digital camera, or a per
`sonal computer (PC).
`Primary-side non-contact charging module 41 is consti
`tuted by including primary-side coil 2a, primary-side mag
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`netic sheet 3a, resonance capacitor (not illustrated), and
`power input section 71. Power input section 71 is connected
`to commercial power Supply 300 functioning as an external
`power supply, receives power of about 100 to 240 V, converts
`the power into a first predetermined current (direct current 12
`V. 1 A), and Supplies the current to primary-side coil 2a.
`Primary-side coil 2a generates a magnetic field according to
`the shape thereof, the winding number thereof, and the Sup
`plied current. The resonance capacitor is connected to pri
`mary-side coil 2a. The resonance frequency of the magnetic
`field generated from primary-side coil 2a is determined
`according to the resonance capacitor with primary-side coil
`2a. The electromagnetic induction action from primary-side
`non-contact charging module 41 to secondary-side non-con
`tact charging module 42 is performed by the resonance fre
`quency.
`Meanwhile, secondary-side non-contact charging module
`42 inclu