`Park et al.
`
`c12) United States Patent
`(45)Date of Patent:
`Dec. 30, 2014
`
`US008922162B2
`
`I 1111111111111111 11111 1111111111 11111 1111111111 1111111111111111 IIII IIII IIII
`
`(IO) Patent No.: US 8,922,162 B2
`
`(54)PORTABLE TERMINAL HAVING A
`WIRELESS CHARGER COIL AND AN
`ANTENNA ELEMENT ON THE SAME PLANE
`
`(51)
`Int. Cl.
`HOJM 10146
`
`(2006.01)
`(2006.01)
`
`H02J7/00
`(52)
`U.S. Cl.
`CPC ........................................ H02J 7100 (2013.01)
`
`(75)Inventors: Jin-Hyoung Park, Gangwon-do (KR);
`
`
`
`
`USPC .......................................................... 320/108
`
`
`Ki-Hyun Kim, Gyeonggi-do (KR);
`
`
`(58) Field of Classification Search
`
`
`Kil-Soo Ko, Gyeonggi-do (KR); Se-Ho
`
`
`USPC .................................. 320/107, 108,114,115
`
`Park, Gyeonggi-do (KR); Sung-Kweon
`
`
`
`See application file for complete search history.
`
`Park, Gyeonggi-do (KR)
`
`
`
`(73)Assignee: Samsung Electronics Co., Ltd (KR)
`
`
`
`(56)
`
`
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`
`
`
`
`2011/0050164 Al* 3/2011 Partovi et al .................. 320/108
`
`( * ) Notice:Subject to any disclaimer, the term ofthis
`
`
`
`
`
`
`
`patent is extended or adjusted under 35
`
`
`U.S.C. 154(b) by 479 days.
`*cited by examiner
`
`
`
`2012/0146576 Al* 6/2012 Partovi .......................... 320/108
`
`
`
`(21) Appl. No.: 13/312,359
`
`Primary Examiner - Edward Tso
`
`
`
`
`(74)Attorney, Agent, or Firm - The Farrell Law Firm, P.C.
`
`
`
`(22) Filed: Dec. 6, 2011
`
`(65)
`
`
`
`Prior Publication Data
`
`
`
`US 2013/0038278 Al Feb. 14, 2013
`
`(57)
`ABSTRACT
`A portable terminal having a wireless charger coil and an
`
`
`
`
`
`
`antenna element on the same plane is provided, in which a
`
`
`shielding member is attached to an inner surface of an exter­
`
`
`
`nal part, a first coil is attached to one surface of the shielding
`
`
`
`
`member, facing the inner surface of the external part, and a
`
`
`
`second coil is attached to the one surface of the shielding
`
`
`
`
`member, surrounding the first coil on the same plane.
`
`(30)
`
`
`
`Foreign Application Priority Data
`
`Aug.8,2011 (KR) ........................ 10-2011-0078611
`
`
`
`
`
`15 Claims, 4 Drawing Sheets
`
`102
`
`133
`
`135
`
`Rectifier
`
`>-------<
`
`r�
`Load Switch
`
`147
`147
`
`NFC coil Rectifier
`
`f-------l
`
`Ex.1006
`APPLE INC. / Page 1 of 9
`
`

`

`
`
`U.S. Patent Dec. 30, 2014 Sheet 1 of 4 US 8,922,162 B2
`
`121
`
`111
`
`FIG.I
`
`Ex.1006
`APPLE INC. / Page 2 of 9
`
`

`

`
`U.S. Patent Dec. 30, 2014
`Sheet 2 of 4
`
`US 8,922,162 B2
`
`103
`
`135
`
`137
`
`133
`
`FIG.2
`
`139
`
`131
`
`FIG.3
`
`Ex.1006
`APPLE INC. / Page 3 of 9
`
`

`

`
`
`U.S. Patent Dec. 30, 2014 Sheet 3 of 4 US 8,922,162 B2
`
`102
`
`101
`
`145
`
`145
`
`ommunicat1on
`Processor
`
`143
`
`135
`
`133
`
`145
`
`143
`
`135
`
`133
`
`149
`
`143
`149
`
`149
`
`149
`
`WCIC
`
`NFC coil
`
`Battery
`
`FIG.4
`
`FIG.5
`
`102
`
`101
`
`145
`
`149
`143
`
`ommunicat1on
`Processor
`
`149
`
`149
`
`149
`
`NFC coil
`
`Battery
`
`FIG.6
`
`FIG.7
`
`Ex.1006
`APPLE INC. / Page 4 of 9
`
`

`

`
`U.S. Patent Dec. 30, 2014 Sheet 4 of 4
`
`US 8,922,162 B2
`
`102
`
`133
`
`Rectifier
`
`147
`147
`
`I
`
`135
`
`Load Switch
`
`NFC coil Rectifier
`
`FIG.8
`
`101
`
`149
`149I
`
`WCIC Battery
`
`Communication
`NFCIC
`Processor
`
`FIG.9
`
`Ex.1006
`APPLE INC. / Page 5 of 9
`
`

`

`
`
`US 8,922,162 B2
`
`1
`2
`recognition distance for NFC. Moreover, since the shielding
`
`
`
`PORTABLE TERMINAL HAVING A
`
`
`
`
`body is usually formed by rolling to be in a planar form, it is
`WIRELESS CHARGER COIL AND AN
`
`
`
`difficult to fix a spirally wound coil or an antenna element
`
`ANTENNA ELEMENT ON THE SAME PLANE
`
`having the same structure.
`
`PRIORITY
`
`BACKGROUND OF THE INVENTION
`
`S UMMARY OF THE INVENTION
`This application claims priority under 35 U.S.C. § 119( a) to
`
`
`
`
`
`
`
`a Korean Patent Application filed in the Korean Intellectual
`An aspect of embodiments of the present invention is to
`
`
`
`
`
`
`
`Property Office on Aug. 8, 2011, and assigned S erial No.
`
`
`
`address at least the problems and/or disadvantages and to
`
`
`10-2011-0078611, the contents of which are incorporated
`10
`
`
`
`
`provide at least the advantages described below. Accordingly,
`
`herein by reference.
`
`
`
`
`
`an aspect of embodiments of the present invention is to pro­
`
`
`vide a portable terminal having a structure that facilitates
`
`and a Near mounting of a secondary coil for wireless charging
`
`
`
`F ield Communication (NFC) antenna element, without
`1.F ield of the Invention
`
`15
`
`
`
`increasing the thickness of the portable terminal.
`The present invention relates to a portable terminal, and
`
`
`
`
`
`
`
`
`Another aspect of embodiments of the present invention is
`
`
`
`
`more particularly, to a portable terminal having a secondary
`
`
`
`
`
`to provide a portable terminal having a structure that can
`
`
`coil for wireless charging, as well as a plurality of antenna
`
`
`
`achieve a sufficient wireless charging efficiency and a suffi-
`elements.
`
`
`20 cient recognition distance for NFC.
`
`2.Description of the R elated Art
`A further aspect of embodiments of the present invention is
`
`
`
`
`
`
`
`
`
`In general, a portable terminal is a device capable of per­
`
`
`
`
`
`to provide a portable terminal having a structure that facili­
`
`
`
`
`
`forming a mobile communication function, an electronic note
`
`
`
`
`tates fixing of a spirally wound coil or an antenna element
`
`
`
`
`
`function, Internet access, and a multimedia function, among
`
`
`as the coil. having the same configu ration
`
`
`
`other functions, while being carried by a user. R ecently, vari­
`
`
`
`
`
`
`
`
`ous functions have been integrated in a single mobile com-In accordance with an embodiment of the present inven-
`25
`
`munication terminal called a smart phone.
`
`
`
`
`tion, there is provided a portable terminal in which a shielding
`
`
`
`
`Meanwhile, a transport card, a security card, a credit card,
`
`
`
`member is attached to an inner surface of an external part, a
`
`
`
`and the like can be used to make payment or to authenticate a
`
`
`
`
`
`first coil is attached to a surface of the shielding member that
`
`user by a Near F ield Communication (NFC) function. As
`
`
`
`
`faces the inner surface of the external part, and a second coil
`
`portable terminals have become a daily commodity, they are
`
`
`
`
`
`
`30 is attached to the surface of the shielding member, with the
`
`equipped with the NFC function. Accordingly, a portable
`
`
`
`
`second coil surrounding the first coil on a same plane.
`terminal is provided with an additional antenna for perform­
`
`
`
`
`
`
`ing the NFC function. Compared to short-range wireless
`
`
`
`communication, such as Bluetooth™ or Zigbee™ functions,
`
`
`
`the NFC technology provides an advantage of fast commu-35
`T he above and other objects, features and advantages of
`
`
`
`
`
`
`
`nication setup between communication devices. Despite this
`
`
`
`
`
`certain embodiments of the present invention will be more
`
`
`
`advantage, the NFC function communicates at a relatively
`
`
`
`apparent from the following detailed description taken in
`
`
`low frequency of 13.56 MHz, making it important to be
`
`
`
`conjunction with the accompanying drawings, in which:
`
`
`
`
`
`within recognition distance to implement the NFC function in
`
`
`FIG. 1 is an exploded perspective view of a portable ter-
`
`a portable terminal.
`
`
`
`
`40 minal according to an embodiment of the present invention;
`
`
`To supply power to the portable terminal, a detachable
`
`FIG. 2 is a plan view of a coil module in the portable
`battery pack or a built-in battery pack is used. A user charges
`
`
`terminal of FIG. 1;
`the remaining amount ofbattery the battery pack according to
`
`
`
`FIG. 3 is a sectional view of the coil module of FIG. 2;
`
`
`
`
`
`
`power, generally, using a separate charger. To increase user
`
`
`
`FIG. 4 illustrates mounting of the coil module of FIG. 2 to
`
`
`
`convenience, efforts have been made to commercialize wire-
`
`
`
`an a battery cover of the portable terminal according to
`45
`
`less charging. For wireless charging, inductive coupling
`
`
`embodiment of the present invention;
`
`
`electrical using a macapacitive coupling using an gn etic field,
`
`
`
`FIG. 5 illustrates the portable terminal with which the
`
`
`
`field, and radio frequency wave radiation are available.
`battery cover illustrated in FIG. 4 is combinable;
`
`
`Among them, the inductive coupling scheme is suitable for
`
`
`
`FIG. 6 illustrates mounting of the coil module of FIG. 2 to
`
`
`
`wireless charging in terms of power efficiency. According to 50
`
`
`
`
`the battery cover of the portable terminal according to another
`
`
`
`the inductive coupling scheme, a battery pack is wirelessly
`
`
`embodiment of the present invention;
`
`with a sec­charged by align ing a primary coil of a charger
`
`
`
`
`
`FIG. 7 illustrates the portable terminal with which the
`
`
`ondary coil of a portable terminal.
`
`battery cover illustrated in FIG. 6 is combinable;
`
`
`To implement both the NFC function and the wireless
`
`
`
`FIG. 8 illustrates mounting of the coil module of FIG. 2 to
`
`
`
`
`
`charging function in a single portable terminal, an NFC 55
`
`
`the battery cover of the portable terminal according to a
`
`
`
`
`antenna element taking the form of a loop antenna and a
`
`
`
`
`further embodiment of the present invention; and
`
`
`
`
`should be mounted in the secondary coil for wireless charging
`
`
`FIG. 9 illustrates the portable terminal with which the
`
`
`
`portable terminal. A shielding body is used to prevent inter­
`
`battery cover of FIG. 8 is to be combined.
`
`
`
`ference between the antenna element and the secondary coil,
`DETAILED DESCRIPTION OF EMBODIMENTS
`
`
`
`
`
`and to protect from interference caused by the secondary coil 60
`OF THE INVENTION
`
`
`
`
`
`on other circuits of the portable terminal when the antenna
`
`
`
`
`operate. How­element and the secondary coil simultaneously
`R eference will now be made in detail to embodiments of
`
`
`
`
`ever, the use of a shielding body for each of the antenna
`
`
`
`the present invention with reference to the accompanying
`
`
`
`the thickness of the element and the secondary coil increases
`
`
`
`
`
`drawings. In the drawings, the same reference numerals will
`
`
`
`portable terminal. Although the secondary coil for wireless
`65
`
`
`be understood to refer to the same elements, features and
`
`
`
`
`charging may be utilized as the NFC antenna element, it is
`
`
`
`structures. In addition, a detailed description of a generally
`
`
`
`
`difficult to achieve both wireless charging efficiency and a
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`Ex.1006
`APPLE INC. / Page 6 of 9
`
`

`

`
`
`US 8,922,162 B2
`
`3
`
`4
`
`known function and structure of the present invention will be 133 and 135. The first and second coils 133 and 135 have
`
`
`
`
`
`
`
`
`
`
`
`
`avoided lest it should obscure the subject matter of the present
`
`
`
`connection ends 143 and 145, respectively, extended from
`invention.
`
`
`one side of the shielding member 131. The connection ends
`
`
`
`
`Referring to FIGS. 1-3, a portable terminal 100 according
`
`
`
`143 and 145 are connected to circuits of the portable terminal
`to an embodiment of the present invention includes a shield­
`
`
`
`
`
`
`
`5 100 via the plurality of terminals 149 provided on the housing
`
`
`ing member 131 attached to an inner surface of an external
`101.
`
`
`101, and a pair part such as a battery cover 102 or a housing
`When installed, the first and second coils 133 and 135 are
`
`
`
`
`
`
`of coils 133 and 135 attached to the shielding member 131.
`
`
`
`exposed from one surface of the shielding member 131. How­
`
`
`
`
`The coils 133 and 135 are mounted on the same plane. The
`ever, the first and second coils 133 and 135 face the inner
`
`
`shielding member 131 and the coils 133 and 135 are collec-
`10
`
`
`
`shielding member surface of the battery cover 102 when the
`
`
`
`
`tively referred to herein as a coil module 103.
`
`
`
`covering the 131 is attached to the battery cover 102, thereby
`
`
`
`
`Referring to FIG. 1, the portable terminal 100 is a bar type
`
`
`
`
`first and second coils 133 and 135. Consequently, the first and
`
`
`
`
`
`terminal having a touch screen display. While not shown, the
`
`
`second coils 133 and 135 are covered by the shielding mem-
`
`
`
`
`display, function keys such as Start/End and Select keys, a
`
`ber 131 and the battery cover 102.
`
`
`
`
`transmitter, and a receiver are installed on a front surface of 15
`One of the first and second coils 133 and 135 may be used
`
`
`
`the housing 101.
`
`
`
`charging and the other coil as a secondary coil for wireless
`
`
`
`
`
`The housing 101 is provided on a rear surface of the por­
`
`may be used as an NFC antenna element. The coils 133 and
`
`recess 111 for table terminal 100, with a battery mounting
`
`
`
`
`
`135 may also be used as antennas for short-range wireless
`
`accommodating a battery pack. The battery cover 102 covers
`
`
`
`communication, e.g. Bluetooth™ or terrestrial multimedia
`
`
`
`of terminals 149 20 the battery mounting recess 111. A plurality
`
`
`
`
`broadcasting antennas, the embodiments of the present inven-
`
`
`and a camera module 119 are installed at one side of the
`
`
`
`tion utilize the first coil 133 as a secondary coil for wireless
`
`
`
`149 also battery mounting recess 111, with the terminals
`
`
`being covered by the battery cover 102. An opening
`121
`
`
`charging and utilize the second coil 135 as an NFC antenna
`
`
`
`
`penetrates through both surfaces of the battery cover 102. The
`element.
`
`
`camera module 119 is accommodated in the opening 121, 25
`For wireless charging, the portable terminal 100 may be
`
`
`
`
`
`
`
`
`thereby securing a capturing path. A connector terminal, a
`
`
`
`cradled on a charging cradle (not shown) to align a prima
`ry
`
`
`
`
`(not switch memory slot, a volume key, and a camera shutter
`
`
`
`coil of a charger with the secondary coil of the portable
`
`
`
`
`
`shown) may be arranged on a side surface of the housing 101.
`
`
`
`terminal 100 corresponding to the first coil 133. Alternatively,
`
`
`The coil module 103 is attached to the inner surface of the
`
`
`the primary coil is movably mounted in the charging cradle
`battery cover 102 and connected to circuits of the portable
`
`
`
`
`
`30 such that when the portable terminal 100 is positioned on the
`
`
`
`
`terminal 100, for example, a communication circuit or a
`
`
`
`
`charging cradle, the primary coil is moved to align with the
`
`
`
`
`charging circuit via the plurality of terminals 149. As illus­
`
`portable terminal 100.
`
`
`
`trated in FIGS.1-3, the coil module 103 includes the shielding
`charging cradle with the To align the primary coil of the
`
`
`
`
`
`member 131 and the coils 133 and 135.
`
`
`
`
`first coil 133 of the portable terminal 100, the shielding mem­
`
`The shielding member 131 may be formed by injection
`35
`
`
`ber 131 may have a protrusion portion 139. The protrusion
`molding, having first and second accommodation grooves
`
`
`
`
`
`
`portion 139 protrudes from the first accommodation groove
`141 and 142 on a surface thereof. The first and second accom­
`
`
`
`
`
`
`141 of the shielding member 131. Since the shielding member
`
`modation grooves 141 and 142 are circular in shape and
`
`
`
`
`
`131 contains the iron component, the protrusion portion 139
`recessed into one surface of the shielding member 131. The
`
`
`
`
`
`
`the protru­That is, because 40 also contains an iron component.
`second accommodation groove 142 surrounds the first
`
`
`
`
`
`
`sion portion 139 contains a paramagnetic material, i.e. the
`
`
`accommodation groove 141, being concentric with the first
`
`
`
`iron component, when the protrusion portion 139 is posi­
`
`
`accommodation groove 141. A shielding wall 137 is inter­
`
`
`
`
`
`
`
`
`posed between the first and second accommodation grooves tioned within the magnetic field of a permanent magnet, an
`
`
`
`
`attraction force of the permanent magnet pulls on the protru-
`141 and 142.
`
`
`
`
`
`A pellet being a mixture of metal powder containing an
`
`45 sion portion 139.
`
`
`
`iron (Fe) component and synthetic resin is injection-molded
`The permanent magnet is attached to the primary coil of the
`
`
`
`
`
`
`
`
`into the shielding member 131. The synthetic resin is prefer­
`
`
`
`
`charging cradle. When the portable terminal 100 is mounted
`
`
`
`ably Poly Carbonate (PC), Poly Amide (PA), Acry lonitrile­
`
`
`
`
`on the charging cradle, the attraction force between the per­
`
`
`Butadiene-Styrene ( ABS) copolymer, or Nylon. As stated
`
`manent magnet and the shielding member 131, particularly
`
`
`
`above, the shielding member 131 contains the iron compo­
`
`
`
`
`the 50 the protrusion portion 139, aligns the primary coil of
`
`
`nent which prevents mutual interference between the coils
`
`
`
`charging cradle with the first coil 133 of the portable terminal
`
`133 and 135, and prevents the coils 133 and 135 from impact­
`
`
`
`100. Meanwhile, while the protrusion portion 139 contains
`
`
`
`
`
`ing circuits within the portable terminal 100, caused by elec­
`
`
`
`the iron component and thus has a paramagnetic property, the
`
`
`
`
`tronic waves generated from high-frequency waves, low-fre­
`
`
`
`
`protrusion portion 139 may have an additional magnetic por-
`
`
`
`quency waves, or power applied to the coils 133 and 135.
`
`
`
`55 tion attached on the first accommodation groove 141 to
`
`
`As shown in FIGS. 2-3, the first coil 133 is accommodated
`
`
`
`
`increase the attraction force between the permanent magnet
`
`
`in the first accommodation groove 141 and the second coil
`
`
`
`of the primary coil and the shielding member 131. Preferably,
`
`
`
`
`135 is accommodated in the second accommodation groove
`
`
`the additional magnetic portion is formed of a paramagnetic
`
`142. The first and second coils 133 and 135 are formed by
`material.
`
`
`
`
`spirally winding enamel-insulated conductor wires.
`60 FIGS. 4 to 9 illustrate configurations of a portable terminal
`
`
`
`
`As the first and second coils 133 and 135 are accommo­
`
`
`
`
`that implements both a wireless charging function and an
`
`
`
`dated in the first and second accommodation grooves 141 and
`
`NFC function using the coil module 103, with the first coil
`
`
`142, respectively, and the second coil 135 surrounds the first
`
`
`
`charging and the 133 as a secondary coil used for wireless
`
`
`
`coil 133. Herein, the shielding wall 137 between the first and
`
`
`second coil 135 as an antenna element for NFC, by way of
`
`
`second coils 133 and 135 provides a shielding effect between
`65 example.
`
`
`
`the coils. In other words, the shielding wall 137 shields inter­
`FIG. 4 illustrates mounting of the coil module 103 on the
`
`
`
`
`
`ference of electronic waves between the first and second coils
`
`
`battery cover 102 of the portable terminal 100 according to an
`
`Ex.1006
`APPLE INC. / Page 7 of 9
`
`

`

`
`
`US 8,922,162 B2
`
`6
`
`a shielding member attached to an inner surface of an
`
`5
`embodiment of the present invention and FIG. 5 illustrates the minal. Since grooves for accommodating the first and second
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`member, spirally wound first coils are formed in a shielding housing 101 to be combined with the battery cover 102 illus­
`
`trated in FIG. 4.
`
`
`
`and second coils can be readily fixed herein. Furthermore, a
`
`
`
`
`FIG. 6 illustrates mounting of
`
`shielding the coil module 103 on the wall being a part of the shielding member isolates
`
`to 100 according battery cover 102 of the portable terminal
`
`
`
`
`
`
`
`5 the first and second coils from each other, thereby preventing
`
`
`
`
`
`another embodiment of the present invention and FIG. 7
`
`
`
`mutual interference between the first and second coils. As a
`
`
`
`illustrates the housing 101 to be combined with the battery
`
`
`
`consequence, high power efficiency and a sufficient recogni­
`
`cover 102 illustrated in FIG. 6.
`
`
`
`
`tion distance can be achieved for the wireless charging func-
`
`
`
`
`To implement the wireless charging function and the NFC
`
`
`tion and the NFC function, respectively.
`
`
`function using the first and second coils 133 and 135, the first
`
`
`
`While the present invention has been particularly shown
`10
`
`and second coils 133 and 135 are connected to a communi-
`
`
`
`
`and described with reference to embodiments thereof, it will
`
`
`
`
`
`cation processor and a charge Integrated Circuit (IC), respec­
`
`
`
`be understood by those of ordinary skill in the art that various
`
`
`
`
`tively. An NFC IC or a Wireless Charger (WC) IC is disposed
`
`
`
`changes in form and details may be made therein without
`on a connection of the first or
`
`
`
`
`
`departing second coil 133 or 135 to a from the spirit and scope of the present invention as
`
`
`
`
`
`
`
`
`circuit of the portable terminal 100. These I Cs control current 15 defined by the following claims.
`
`
`and voltage during charging.
`What is claimed is:
`
`In accordance with the embodiment of the present inven­
`
`
`
`
`
`
`1. A portable terminal comprising:
`
`
`
`tion illustrated in FIGS. 4 and 5, the NFC IC is connected to
`
`
`
`
`
`
`
`
`the communication processor of the portable terminal 100
`
`external part;
`
`
`
`and to the second coil 135 mounted to the battery cover 102 20
`a first coil attached to a surface of the shielding member
`
`
`
`
`
`
`
`
`
`via the plurality of terminals 149. The charger IC is installed
`
`
`that faces the inner surface of the external part;
`
`
`
`
`
`inside the portable terminal 100 and connected to the battery
`
`
`
`
`
`a second coil attached to the surface of the shielding mem­
`
`
`
`
`pack. In addition, the WC IC is connected to the charger IC
`
`
`ber, wherein the second coil surrounds the first coil on a
`
`
`
`
`inside the portable terminal 100 and to the first coil 133
`
`same plane; and
`
`
`
`
`plu-25 the remaining mounted to the battery cover 102 through
`a load switch providing a first connection line for connect­
`
`
`
`
`
`
`rality of terminals 149.
`
`
`ing the first coil to a batteterminal ry pack of the portable
`
`
`
`The embodiments illustrated in FIGS. 4 and 5 and in FIGS.
`
`and a second connection line for connecting the second
`
`
`
`
`6 and 7 are substantially identical in configuration, except that
`
`
`
`coil to a communication circuit of the portable terminal,
`
`
`
`the WC IC is installed to the battery cover 102 in the latter
`
`
`
`
`wherein the load switch prevents signal or power interfer­
`
`
`
`
`embodiment. Thus further detail of the embodiment illus-
`30
`
`
`trated in FIGS. 6 and 7 is not repeated herein.
`
`
`ence between the first connection line and the second
`
`connection line.
`
`
`
`FIG. 8 illustrates mounting of the coil module 103 on the
`2. The portable terminal of claim 1, wherein the first coil is
`
`
`
`
`
`
`
`
`
`to a 100 according battery cover 102 of the portable terminal
`
`
`
`a charger and the a secondary coil for inductive coupling with
`
`
`
`
`
`further embodiment of the present invention, and FIG. 9
`
`second coil is an antenna element.
`
`
`
`illustrates the housing 101 to be combined with the battery
`35
`3. The portable terminal of claim 1, wherein the first coil is
`
`
`
`
`
`
`cover 102 of FIG. 8.
`
`
`
`Referring to FIGS. 8 and 9, the first and second coils 133
`
`
`
`
`an antenna element and the second coil is a secondary coil for
`
`and 135 share connection ends 147 and only a pair of termi­
`
`
`
`
`inductive coupling with a charger.
`nals 149 are installed on the housing 101. In this case, even
`
`
`
`
`4.The portable terminal of claim 1, further comprising a
`
`
`
`
`
`
`
`of the portable 40 battery mounting recess formed on a housing
`
`
`though power is supplied and signals are transmitted through
`
`
`
`
`
`
`
`terminal, wherein the external part is a battery cover detach­
`
`
`
`the shared connection ends 147 and the pair of terminals 149,
`
`
`
`
`ably engaged with the housing, for opening or covering the
`
`
`
`
`a load switch may prevent signal or power interference on
`battery mounting recess.
`
`
`
`lines. Since more power is supplied through a line during
`
`
`5.The portable terminal of 1, wherein a battery pack con-
`
`
`
`
`wireless charging than during powering of a sign al for the
`
`
`
`
`45 nected to the first coil is accommodated in the portable ter­
`
`
`
`NFC function, the load switch prevents the wireless charging
`
`
`inductive minal and the first coil is a secondary coil for
`
`
`
`power from influencing the NFC line or the second coil 135.
`
`
`
`As illustrated in FIGS. 4 to 9, those of skill
`
`
`
`
`coupling in the art will with a charger, connected to the battery pack.
`recognize that a rectifier or a charger IC can be selectively
`
`
`
`
`
`
`
`
`6. The portable terminal of claim 1, wherein the second coil
`
`
`
`disposed in connecting the first and second coils 133 and 135
`
`
`is a Near Field Communication (NFC) antenna element.
`
`
`
`
`charging and an 50 configured as a secondary coil for wireless
`
`
`
`
`
`7.The portable terminal of claim 1, further comprising an
`
`
`
`
`
`
`antenna element for the NFC function to circuits of the por­
`
`
`
`NFC control circuit built in the portable terminal, wherein
`
`table terminal 100.
`
`
`one of the first and second coils is connected to a communi­
`
`
`
`When the wireless charging function and the NFC function
`
`
`
`cation circuit of the portable terminal through the NFC con­
`
`
`
`are implemented using the coil module of the present inven­
`trol circuit.
`
`
`
`tion, approximately 71 % power efficiency can be achieved
`8.The portable terminal of claim 1, further comprising a
`
`
`
`
`55
`
`
`
`
`
`during wireless charging and a recognition distance of about
`
`
`
`
`
`wireless charging control circuit built in the external part or
`
`
`
`25 mm can be secured for the NFC function. As the first and
`
`
`
`
`
`the portable terminal, wherein one of the first and second coils
`
`
`
`
`second coils are positioned on a same plane, the increase of
`
`
`
`
`is connected to a battery pack of the portable terminal via the
`
`
`
`the thickness of the portable terminal is minimized and both
`
`
`
`wireless charging control circuit.
`
`
`
`
`
`the wireless charging function and the NFC function can be 60
`
`
`
`
`9.The portable terminal of claim 1, further comprising a
`
`
`implemented in a single terminal.
`
`
`
`
`mem­of the shielding magn etic piece attached to the surface
`
`
`
`As is apparent from the above description, the portable
`
`
`ber, in an area surrounded by the first coil.
`
`
`
`
`terminal according to the present invention has a first coil for
`
`10. A portable terminal comprising:
`
`
`
`
`wireless charging and a second coil for the NFC function on
`
`
`
`
`
`
`
`
`the same plane. Therefore, both the wireless charging func-65
`
`external part;
`
`
`tion and the NFC function can be implemented in the portable
`a first coil attached to a surface of the shielding member
`
`
`
`
`
`
`
`
`
`
`terminal without increasing the thickness of the portable ter-
`
`
`that faces the inner surface of the external part; and
`
`a shielding member attached to an inner surface of an
`
`Ex.1006
`APPLE INC. / Page 8 of 9
`
`

`

`
`
`US 8,922,162 B2
`
`7
`
`8
`
`a second coil attached to the surface of the shielding mem­
`
`
`
`
`
`
`
`
`
`ber, wherein the second coil surrounds the first coil on a
`same plane,
`wherein the shielding member comprises:
`
`
`
`
`a first accommodation groove formed into the surface of 5
`
`
`the shielding member; and
`a second accommodation groove surrounding the first
`
`
`
`
`
`accommodation groove on the surface of the shield­
`ing member,
`wherein the first coil is accommodated in the first 10
`
`
`
`
`
`
`accommodation groove and the second coil is accom­
`
`
`
`modated in the second accommodation groove.
`
`
`
`11.The portable terminal of claim 10, wherein the shield­
`
`
`
`
`ing member further comprises a protrusion portion formed of
`
`
`a paramagnetic material, surrounded by the first accommo-15
`
`dation groove.
`12. The portable terminal of claim 10, further comprising a
`
`
`
`
`
`
`magnetic piece formed of a paramagnetic material, attached
`
`
`to an area surrounded by the first accommodation groove.
`
`
`
`
`13. The portable terminal of claim 10, wherein the shield-20
`
`
`
`
`ing member further comprises a shielding wall between the
`
`
`first and second accommodation grooves.
`
`
`
`14.The portable terminal of claim 10, wherein the shield­
`
`
`ing member is formed by injection-molding a mixture of an
`
`iron powder and synthetic resin.
`25
`
`
`
`15.The portable terminal of claim 14, wherein the syn­
`
`
`thetic resin is one of Poly Carbonate (PC), Poly Amide (PA),
`
`
`Acrylonitrile-Butadiene-Styrene (ABS) copolymer, and
`Nylon.
`
`30
`* * * * *
`
`Ex.1006
`APPLE INC. / Page 9 of 9
`
`