WO2012013054A1 - 一种近场通信天线装置及手持终端设备 - Google Patents

一种近场通信天线装置及手持终端设备 Download PDF

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Publication number
WO2012013054A1
WO2012013054A1 PCT/CN2011/073149 CN2011073149W WO2012013054A1 WO 2012013054 A1 WO2012013054 A1 WO 2012013054A1 CN 2011073149 W CN2011073149 W CN 2011073149W WO 2012013054 A1 WO2012013054 A1 WO 2012013054A1
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WO
WIPO (PCT)
Prior art keywords
field communication
near field
sliding
communication antenna
battery case
Prior art date
Application number
PCT/CN2011/073149
Other languages
English (en)
French (fr)
Inventor
范景云
程红朝
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012013054A1 publication Critical patent/WO2012013054A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/088—Quick-releasable antenna elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Definitions

  • the present invention relates to an electronic handheld terminal device technology, and more particularly to a near field communication terminal device and an NFC (Near Field Communication) antenna device.
  • NFC Near Field Communication
  • NFC Near Field Communication
  • RFID Radio Frequency Identification
  • RFID Radio Frequency Identification
  • RFID Radio Frequency Identification
  • the transmission range of RFID is large, which can reach 0 ⁇ lm. Since near field communication draws a unique signal attenuation technology, its transmission range is smaller than that of RFID, so near field communication has low cost compared with RFID. High bandwidth and low energy consumption.
  • RFID is more widely used in production, logistics, tracking, and asset management, while near-field communication plays a huge role in access control, public transportation, and mobile payment.
  • NFC technology and RFID technology are essentially a kind of non-contact automatic identification technology, which uses space electromagnetic induction or electromagnetic propagation to communicate, so as to achieve automatic identification of objects.
  • NFC technology has gradually become the mainstream technology for mobile contactless applications, and has broad prospects for applications such as public applications, business card exchanges, reading posters, access control exhibitions, personnel tracking management, food inspection and security, electronic wallets, and credit cards.
  • Handheld terminal manufacturers, especially mobile phone manufacturers, have paid more and more attention to its development and confidence in its market prospects.
  • NFC antennas rely on magnetic field coupling to transfer energy, exchange data, and synchronize information.
  • the current practice is generally to attach a flexible printed circuit board (FPC) printed with an antenna coil to the components of the handheld terminal, and then cover the ferrite material to avoid metal on the terminal (such as The metal material on the battery or motherboard absorbs magnetic field energy, which affects the performance of the NFC antenna.
  • the disadvantage of this is that the ferrite material that must be used is usually expensive, which greatly increases the manufacturing cost of the NFC-enabled handheld terminal device. Second, even if the ferrite material is used, it cannot be completely eliminated. The effect of the battery and the metal on the motherboard is not very satisfactory. There is still a certain gap between the performance of the ordinary non-contact IC card (Integrated Card). This will affect the user's sense of use
  • the present invention provides a handheld terminal using a near field communication antenna, including a near field communication antenna device, a near field communication master device, and a battery case member, wherein:
  • the battery case member includes a battery case and a slider mounted on the battery case;
  • the near field communication antenna device is slidably coupled to the sliding seat, and is fixable to the first position and the second position in the sliding seat, and is slidable between the first position and the second position;
  • the near field communication antenna device When the near field communication antenna device is in the second position, the near field communication antenna device protrudes out of the battery case member and is electrically connected to the near field communication master device; when the near field communication antenna device is in the first position, The near field communication antenna device is retracted in the battery case member.
  • the near field communication antenna device comprises a sliding sheet and a flexible printed circuit board including a near field communication antenna, wherein:
  • the sliding sheet is laminated with a flexible printed circuit board including a near field communication antenna and slidable on a slider on the battery case member;
  • a flexible printed circuit board having a near field communication antenna is printed with a coil of a near field communication antenna and is provided with a feed point in contact with a feed foot of the near field communication master.
  • the first end of the sliding piece forms a convex portion, and the convex portion is pushed to slide the second end of the sliding piece opposite to the first end out of the battery case member;
  • a hole is formed in the battery case to mount the slider, and an elongated sliding hole allowing the sliding piece to pass therethrough is formed in a portion of the battery case outside the second end of the sliding piece.
  • the sliding seat is provided with a pair of sliding slots or a pair of sliding rails;
  • the sliding piece is slidably engaged with the pair of sliding grooves in the corresponding sliding grooves by a pair of protruding strips, or is slidably engaged with the pair of sliding rails on the corresponding sliding rails by a pair of concave strips.
  • the sliding piece is made of an insulating material and is adhesively bonded to the flexible printed circuit
  • the boards are stacked together;
  • a protective film is sprayed on the flexible printed circuit board, and the winding shape of the coil of the printed near field communication antenna is any one of a circular shape, an elliptical shape, and a rectangular geometric shape.
  • the handheld terminal further includes a middle case, and the portion of the middle case that is in contact with the sliding piece is upwardly lifted and has elasticity;
  • the first end of the sliding plate abuts against a flange formed on the inner side of the battery case, and the second end of the sliding piece is at a position corresponding to the second end of the sliding seat and the middle case
  • the feeding point of the flexible printed circuit board on the sliding sheet is separated from the feeding foot of the near field communication main control device; in the second position, the convex portion of the sliding sheet faces the end of the second end of the sliding piece Abutting on the inner edge of the sliding seat or the battery casing corresponding to the second end, the other end of the convex portion abuts on the inner edge of the raised portion of the middle casing; and simultaneously sliding the flexible printed circuit board on the sheet
  • the feed point is in contact with the feed pin of the near field communication master.
  • the present invention also provides a near field communication antenna device for use in a handheld terminal, comprising a sliding sheet and a flexible printed circuit board including a near field communication antenna, wherein:
  • a flexible printed circuit board comprising a near field communication antenna, a coil printed with a near field communication antenna, and a feed point in contact with a near field communication master of the handheld terminal;
  • a sliding sheet laminated with a flexible printed circuit board including a near field communication antenna, slidably coupled to a sliding seat on the battery case of the handheld terminal, and fixed to the first position and the second position in the sliding seat, and The first position and the second position slide.
  • the first end of the sliding sheet forms a raised portion that is pushed to slide the second end of the sliding sheet opposite the first end out of the battery compartment of the hand-held terminal.
  • the sliding sheet is made of an insulating material and is laminated with the flexible printed circuit board by adhesive bonding;
  • a protective film is sprayed on the flexible printed circuit board, and the winding shape of the coil of the printed near field communication antenna is any one of a circular shape, an elliptical shape, and a rectangular geometric shape.
  • the first end of the sliding plate abuts on a flange formed on the inner side of the battery case, and the second end of the sliding piece is in the middle of the sliding seat and the handheld terminal and the second Corresponding position On the inner edge; at the same time, the feeding point of the flexible printed circuit board is electrically separated from the near field communication main control device of the handheld terminal;
  • the convex portion of the sliding piece abuts against the inner end of the second end of the sliding piece on the inner edge of the sliding seat or the battery casing corresponding to the second end, and the other end of the convex portion abuts
  • the top is on the inner edge of the raised portion of the middle casing; at the same time, the feeding point of the flexible printed circuit board is in electrical contact with the near field communication master of the handheld terminal.
  • the retractable NFC antenna designed by the present invention can hide the antenna in the battery case member of the handheld terminal when the NFC function is not used, and pull the antenna out of the battery when the NFC function is required
  • the shell member is used, so that the adverse effects of the battery and the main board of the handheld terminal can be effectively avoided when the antenna is used, thereby improving the performance of the NFC antenna; and at the same time, the ferrite material used in the conventional NFC antenna is saved, which greatly saves the economy. Manufacturing costs of terminal equipment.
  • FIG. 1 is an exploded view of an embodiment of an NFC antenna provided by the present invention
  • FIG. 2 is a schematic diagram of an embodiment of a positioning mechanism for an NFC antenna in an inactive position according to the present invention
  • FIG. 3 is a schematic diagram of an embodiment of a positioning mechanism for an NFC antenna in an enabled position according to the present invention
  • FIG. 4 is a left and right push-pull NFC provided by the present invention. Schematic diagram of the antenna;
  • FIG. 5 is a schematic diagram of the up-and-down push-pull NFC antenna provided by the present invention.
  • An embodiment of a handheld terminal using a near field communication antenna includes an NFC antenna device, an NFC master device (which can be disposed on a main board of the handheld terminal), and a battery case member, wherein: the battery case member includes a battery case and a slider mounted on the battery case; The NFC antenna device is slidably coupled to the slider, and is fixable to the first position and the second position in the carriage, and is slidable between the first position and the second position.
  • FIG. 2 A schematic view of the first and second positions of the NFC antenna assembly secured within the carriage can be seen in Figures 2 and 3, respectively.
  • the NFC antenna device When the NFC antenna device is in the second position, the NFC antenna device protrudes out of the battery case member and is electrically connected to the NFC master device; when the NFC antenna device is in the first position, the NFC antenna device is retracted In the battery case member.
  • the NFC antenna device further includes a sliding piece and an FPC including an NFC antenna, and the sliding seat on the battery case member is provided with a pair of sliding grooves or a pair of sliding rails, wherein:
  • the sliding piece is laminated with the FPC containing the NFC antenna (for example, bonded together), and slid on the matching sliding seat on the battery case member;
  • one side of the sliding piece may form a convex portion (such as the left side of the figure) to facilitate pushing the sliding piece, and the other side of the sliding piece (the right side of the figure) can slide out of the battery case member.
  • a hole is formed in the battery case to mount the sliding seat and the sliding piece, and on the battery case on the side on which the sliding piece can slide, an elongated slit is formed to allow the sliding piece to pass therethrough. Slide out the hole.
  • the sliding piece When the sliding block is a sliding slot, the sliding piece is slidably engaged with the sliding slot in the sliding slot; when the sliding block is a sliding rail, the sliding piece is slidably engaged with the sliding rail on the sliding rail by the concave strip.
  • the FPC with NFC antenna is printed with an NFC antenna coil and is equipped with a feed point that contacts the feed leg of the master when the NFC antenna is used.
  • the FPC is attached to the inside of the terminal after the mounting of the slider.
  • the sliding piece is made of an insulating material, such as a plastic piece, which can be bonded to the FPC by a backing to support the FPC, and a protective film is sprayed on the FPC to protect the NFC antenna.
  • the color of the protective film can be Same as the slide to ensure the aesthetics of the entire NFC antenna.
  • the winding shape of the NFC antenna coil printed on the FPC is any one of a circular, elliptical, rectangular, and rectangular regular geometry with rounded corners.
  • the area of the winding coil is equal to or larger than 8 cm 2
  • the width of the winding coil is equal to or larger than 2 cm.
  • the specific area and width are as large as possible under the allowable condition of the size of the smartphone.
  • the sliding piece of the FPC containing the NFC antenna is bonded as a unitary member, and is normally located in the first position when the NFC function is not used, and is hidden in the battery terminal member of the hand-held terminal including the slider, when the NFC is needed. In function, the NFC antenna can be pushed out to the second position by pushing the sliding piece outward in the sliding seat. After use, the sliding piece is pushed inward in the sliding seat to push the NFC antenna back to the original first position.
  • the portion of the hand-held terminal in contact with the slider in the middle of the terminal is tilted upward and has elasticity.
  • the sliding piece may protrude from a first end of the battery case, a flange formed on the inner side of the battery case (the stop portion 2 in FIG. 2), and a second end opposite to the first end
  • the inner edge of the position corresponding to the second end of the slider and the middle case (which may also be any one or more of the slider, the middle case, and the battery case) (the stop portion 1 in FIG. 2) on.
  • the sliding piece When the NFC function is to be used, the sliding piece is slid out along the sliding seat by pressing the sliding piece downward and pushing the sliding piece outward. As shown in FIG. 3, the sliding piece is fixed by the stop portion 3 and the stop portion 4. In the second position, at the same time, the feeding point of the FPC on the sliding sheet is in contact with the feeding foot of the main control device to ensure electrical connection.
  • the slide piece When the NFC function is used, the slide piece is slid along the slide by pushing down the slide piece and pushing the slide piece that has been pulled inward, as shown in FIG. 2, through the stop portion 1 and the stop portion 2
  • the sliding piece is fixed in the first position, and the feeding point of the FPC on the sliding piece is separated from the feeding foot of the main control device to ensure electrical disconnection.
  • the slide can be independently fixed to the battery case by means of blanching, super welding or the like.
  • the invention designs the NFC antenna to push and pull left and right, or designs the NFC antenna to push up and down.
  • the sliding piece slides out along the sliding seat to the left or right and is fixed in the second position in the sliding seat, or the sliding piece slides in the opposite direction along the sliding seat and is fixed in the sliding seat.
  • the sliding piece slides up or down along the sliding seat and is fixed in the second position outside the sliding seat.
  • Upper, or the slide slides in the opposite direction along the slide and is fixed in the first position in the slide.
  • the NFC antenna provided by the present invention can achieve a minimum working field strength of 0.8 A/m (the smaller the parameter, the better), which is close to the performance of an ordinary non-contact IC card; and the current minimum of the near field communication handheld terminal The field strength is generally 1.8 A/m, indicating that the performance of the NFC antenna is significantly improved.
  • both the card mode and the reader mode can increase the card swipe distance, reduce the dead zone, and meet the swipe requirements in a small structure space.
  • the present invention can hide the antenna in the battery case member of the handheld terminal when the NFC function is not used, and pull the antenna out of the battery case member when the NFC function is required, so that the antenna can be used when the antenna is used. Effectively avoiding the adverse effects of the battery and the motherboard of the handheld terminal, the performance of the NFC antenna is improved; at the same time, the manufacturing cost of the terminal device is greatly saved by saving the ferrite material used in the conventional NFC antenna.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)

Abstract

本发明提供近场通信天线装置及使用该近场通信天线的手持终端，该手持终端包括近场通信天线装置、近场通信主控装置以及电池壳构件，其中：所述电池壳构件包括电池壳和安装在该电池壳上的滑座；所述近场通信天线装置与所述滑座滑动连接，可固定于所述滑座内的第一位置和第二位置，并可在该第一位置和第二位置之间滑动；其中，当所述近场通信天线装置位于所述第二位置时，该近场通信天线装置伸出于所述电池壳构件之外，且与所述近场通信主控装置电连接；当所述近场通信天线装置位于所述第一位置时，所述近场通信天线装置收回在所述电池壳构件中。本发明可大大节约终端设备的生产制造成本。

Description

一种近场通信天线装置及手持终端设备
技术领域
本发明涉及电子手持终端设备技术， 尤其涉及近场通信终端设备及其使 用的近场通信 ( NFC, Near Field Communication )天线装置。
背景技术
近场通信（ NFC ) ^^于射频识另 'Κ RFID, Radio Frequency Identification ) 技术发展起来的一种近距离无线通信技术。 与 RFID技术相同， 近场通信信 息也是通过频谱中无线频率部分的电磁感应耦合方式传递， 但两者之间存在 着 4艮大的区别。 通常 RFID的传输范围较大， 可以达到 0~lm; 而由于近场通 信釆取了独特的信号衰减技术，故其传输范围比 RFID要小，因此相对于 RFID 来说近场通信具有成本低、 带宽高以及能耗低等特点。 RFID更多地被应用在 生产、 物流、 跟踪、 资产管理上， 而近场通信则在门禁、 公交、 手机支付等 领域内发挥着巨大的作用。
NFC技术与 RFID技术本质上又都是一种非接触式自动识别技术， 都是 利用空间电磁感应或电磁传播进行通信， 以达到自动识别对象的目的。 NFC 技术逐渐成为移动式非接触应用的主流技术， 在公共应用、 名片互换、 阅读 海报、 门禁展会、 人员跟踪管理、 食品检验防伪、 电子钱包以及***等应 用上都有广阔的发展前景。 手持终端厂商， 尤其是手机厂商， 已经越来越关 注它的发展， 对其市场前景充满信心。
NFC天线依靠磁场耦合来传递能量、 交换数据及同步信息。 目前的做法 一般都是把印有天线线圈的柔性印刷电路板 ( FPC, Flexible Printed Circuit ) 以粘贴的方式贴在手持终端的部件上， 上面再覆盖铁氧体材料以避免终端上 的金属 (譬如电池或主板上的金属材料）吸收磁场能量， 从而影响 NFC天线 的性能。 这样做的弊端， 一是必须使用的铁氧体材料通常价格昂贵， 由此会 大大增加了具有 NFC功能的手持终端设备的制造成本； 二是即便使用了铁氧 体材料， 也并不能完全消除电池以及主板上金属的影响， 故使用效果并不是 很理想， 距离普通的非接触式 IC卡（ Integrated Card ) 的性能还有一定差距， 由此会影响用户的使用感
发明内容
本发明的目的是提供一种近场通信天线及使用该天线的手持终端设备， 以避免使用昂贵的铁氧体材料， 从而降低设备成本。
本发明提供一种使用近场通信天线的手持终端，包括近场通信天线装置、 近场通信主控装置以及电池壳构件， 其中：
电池壳构件包括电池壳和安装在该电池壳上的滑座；
近场通信天线装置与滑座滑动连接， 可固定于滑座内的第一位置和第二 位置， 并可在该第一位置和第二位置之间滑动； 其中，
当近场通信天线装置位于第二位置时， 该近场通信天线装置伸出于电池 壳构件之外， 且与近场通信主控装置电连接； 当近场通信天线装置位于第一 位置时， 近场通信天线装置收回在电池壳构件中。
优选地， 近场通信天线装置包括滑动片及含近场通信天线的柔性印刷电 路板， 其中：
滑动片与含近场通信天线的柔性印刷电路板层叠在一起， 并可滑动在电 池壳构件上的滑座上；
含近场通信天线的柔性印刷电路板上印制有近场通信天线的线圈， 并配 有与近场通信主控装置的馈电弹脚相接触的馈电点。
优选地， 滑动片的第一端形成一个凸起部， 推动该凸起部可将滑动片的 与该第一端相对的第二端滑出电池壳构件外；
电池壳上开有一孔以安装该滑座， 且在电池壳的位于滑动片的第二端外 的部分上形成有允许该滑动片从中穿过的一狭长的滑出孔。
优选地， 滑座设置有一对滑槽或一对滑轨；
滑动片通过一对凸起条与一对滑槽配合滑动在相应的滑槽中， 或通过一 对凹下条与一对滑轨配合滑动在相应的滑轨上。
优选地， 滑动片用绝缘材料制成， 并通过背胶粘接方式与柔性印刷电路 板层叠在一起；
柔性印刷电路板上喷涂保护膜， 印制的近场通信天线的线圈的绕线形状 是圓形、 椭圓形以及矩形几何形状中的任意一种。
优选地， 该手持终端还包括中壳， 中壳与滑动片接触的部分向上翘起并 具有弹性； 其中，
在第一位置， 滑动片的第一端抵顶在电池壳内侧形成的一凸缘上， 滑动 片的第二端 ·ί氐顶在滑座和中壳的与该第二端相对应的位置的内沿上， 同时滑 动片上柔性印刷电路板的馈电点与近场通信主控装置的馈电弹脚相分离； 在第二位置， 滑动片的凸起部朝向滑动片的第二端的一端抵顶在滑座或 电池壳的与该第二端相对应的位置的内沿上， 凸起部的另一端则抵顶在中壳 翘起部分的内沿上； 同时滑动片上柔性印刷电路板的馈电点与近场通信主控 装置的馈电弹脚相接触。
本发明还提供一种使用在手持终端中的近场通信天线装置， 包括滑动片 及含近场通信天线的柔性印刷电路板， 其中：
含近场通信天线的柔性印刷电路板， 印制有近场通信天线的线圈， 并配 有与手持终端的近场通信主控装置相接触的馈电点；
滑动片， 与含近场通信天线的柔性印刷电路板层叠在一起， 滑动连接于 手持终端电池壳上的一滑座内， 可固定于滑座内的第一位置和第二位置， 并 可在该第一位置和第二位置之间滑动。
优选地， 滑动片的第一端形成一个凸起部， 推动该凸起部可将滑动片的 与所述第一端相对的第二端滑出手持终端电池壳外。
优选地， 滑动片用绝缘材料制成， 通过背胶粘接方式与柔性印刷电路板 层叠在一起；
柔性印刷电路板上喷涂保护膜， 印制的近场通信天线的线圈的绕线形状 是圓形、 椭圓形以及矩形几何形状中的任意一种。
优选地， 在第一位置， 滑动片的第一端抵顶在电池壳内侧形成的一凸缘 上， 滑动片的第二端 ·ί氏顶在滑座和手持终端中壳的与该第二端相对应的位置 的内沿上； 同时柔性印刷电路板的馈电点与手持终端的近场通信主控装置电 气分离；
在第二位置， 滑动片的凸起部朝向滑动片的第二端的一端抵顶在滑座或 电池壳的与该第二端相对应的位置的内沿上， 凸起部的另一端则抵顶在中壳 翘起部分的内沿上； 同时柔性印刷电路板的馈电点与手持终端的近场通信主 控装置电气接触。
通过本发明设计的可伸缩式的 NFC天线， 包括其安装定位机构， 由于可 以在不使用 NFC功能时将天线隐藏在手持终端的电池壳构件中， 而在需要使 用 NFC功能时将天线拉出电池壳构件使用，故可在使用天线时有效地避免手 持终端的电池及主板的不利影响， 从而提高了 NFC天线性能； 同时， 由于节 省了传统的 NFC天线中使用的铁氧体材料， 大大节约了终端设备的生产制造 成本。 附图概述
图 1是本发明提供的 NFC天线实施例的***图；
图 2是本发明提供的 NFC天线处于禁能位置的定位机构实施例示意图； 图 3是本发明提供的 NFC天线处于使能位置的定位机构实施例示意图； 图 4是本发明提供的左右推拉 NFC天线的示意图；
图 5是本发明提供的上下推拉 NFC天线的示意图。
本发明的较佳实施方式
以下结合附图和优选实施例对本发明的技术方案进行详细地阐述。 以下 例举的实施例仅仅用于说明和解释本发明， 而不构成对本发明技术方案的限 制。
本发明提供的使用近场通信天线的手持终端的实施例， 包括 NFC天线装 置、 NFC主控装置 （可设置在手持终端的主板上） 以及电池壳构件， 其中： 电池壳构件， 包括电池壳和安装在该电池壳上的滑座； 该 NFC天线装置与该滑座滑动连接，可固定于该滑座内的第一位置和第 二位置， 并可在该第一位置和第二位置之间滑动。
NFC天线装置固定于滑座内的第一位置和第二位置的示意图可分别参见 图 2和图 3。
当该 NFC天线装置位于该第二位置时， 则该 NFC天线装置伸出于电池 壳构件之外， 且与 NFC主控装置电连接； 当 NFC天线装置位于第一位置时， 该 NFC天线装置收回在该电池壳构件中。
如图 1所示， NFC天线装置进一步包括滑动片及含 NFC天线的 FPC, 电 池壳构件上的滑座设置有一对滑槽或一对滑轨， 其中：
滑动片与含 NFC天线的 FPC层叠在一起（譬如粘接在一起）， 滑动在电 池壳构件上相配合的滑座上；
如图 2所示， 该滑动片的一侧可以形成一个凸起部 （如该图左侧）方便 推动滑动片， 该滑动片的另一侧 （该图右侧）可以滑出电池壳构件外。 相应 地， 电池壳上开有一孔以安装该滑座及推动滑动片， 且在该滑动片可以滑出 的这一侧的电池壳上， 还形成有允许该滑动片从中穿过的一狭长的滑出孔。
当滑座为滑槽， 则滑动片通过凸起条与滑槽配合滑动在滑槽中； 当滑座 为滑轨， 则滑动片通过凹下条与滑轨配合滑动在滑轨上。
含 NFC天线的 FPC印制有 NFC天线线圈，并配有在使用 NFC天线时与 主控装置的馈电弹脚相接触的馈电点。 该 FPC是贴在滑动片的安装后朝向终 端内部的一面。
其中， 滑动片用绝缘材料制成， 譬如用塑料片， 可以通过背胶与 FPC粘 接， 起到支撑 FPC的作用， 并且在 FPC上喷涂保护膜， 以保护 NFC天线， 该保护膜的颜色可与滑动片相同， 以保证整个 NFC天线的美观。
其中， FPC上印制的 NFC天线线圈的绕线形状是圓形、 椭圓形、 矩形以 及带有圓角的矩形规则几何形状中的任意一种。 绕线线圈的面积等于或大于 8平方厘米， 绕线线圈的宽度等于或大于 2厘米， 具体的面积和宽度在智能 手机的体积尺寸的允许的条件下越大越好。 在上述实施例中， 粘接含 NFC天线的 FPC的滑动片作为一个整体构件， 平时不使用 NFC功能时位于第一位置， 隐藏在含滑座的手持终端电池壳构件 中， 当需要使用该 NFC功能时， 可通过在滑座中向外推动滑动片将 NFC天 线推出到第二位置使用， 使用完毕后， 在滑座中向内推动滑动片将 NFC天线 推回到原来的第一位置。
如图 2所示， 手持终端中壳与滑动片接触的部分向上翘起并具有弹性。 在第一位置， 滑动片可伸出电池壳的第一端 ·ί氐顶在电池壳内侧形成的一 凸缘（图 2中的止位部 2 )上， 与第一端相对的第二端抵顶在滑座和中壳（也 可以是滑座、 中壳和电池壳的任一个或多个） 的与该第二端相对应的位置的 内沿 （图 2中的止位部 1 )上。
在第二位置， 如图 3所示， 滑动片凸起部的朝向滑出孔的一端抵顶在滑 座（或电池壳） 的与该滑出孔相对应的位置的内沿 （图 3中的止位部 3 )上， 该凸起部的另一端抵顶在中壳翘起部分的内沿 （图 3中的止位部 4 )上。
当要使用 NFC功能时， 通过下按滑动片并向外推动滑动片， 使滑动片沿 滑座滑出， 如图 3所示， 通过止位部 3和止位部 4使滑动片固定在第二位置 上， 同时滑动片上 FPC的馈电点与主控装置的馈电弹脚相接触， 保证电气连 接。
当用毕 NFC功能时， 通过下按滑动片并向内推动已被拉出的滑动片， 使 滑动片沿滑座滑入， 如图 2所示， 通过止位部 1和止位部 2将滑动片固定在 第一位置上， 同时滑动片上 FPC的馈电点与主控装置的馈电弹脚相脱离， 保 证电气断开。
滑座可以通过热烫、 超焊等方式独立固定在电池壳上。
本发明将 NFC天线设计为左右推拉， 或将 NFC天线设计为上下推拉。 如图 4所示， 滑动片沿滑座向左或向右滑出并固定在滑座内的第二位置 上， 或者滑动片沿滑座向相反方向滑入并固定在滑座内的第一位置上。
如图 5所示， 滑动片沿滑座向上或向下滑出并固定在滑座外的第二位置 上， 或者滑动片沿滑座向相反方向滑入并固定在滑座内的第一位置上。
由于本发明不需要使用铁氧体材料， 故每个手持终端可以节约 1美金以 上的铁氧体材料的成本。 并且， 本发明提供的 NFC天线其最小工作场强可以 达到 0.8A/m (该参数越小越好） ， 已接近普通的非接触式 IC卡的性能； 而 目前的近场通信手持终端的最小工作场强一般为 1.8A/m,说明该 NFC天线性 能得到明显提高。 按照本发明提供的 NFC天线结构安装的手机， 在 NFC天 线性能测试中， 无论是卡模式还是阅读器模式， 都可以增大刷卡距离， 减少 盲区， 在较小的结构空间中满足了刷卡要求。
以上仅为本发明的实施例而已， 并非用于限定本发明的保护范围。 凡在 本发明的精神和原则之内所作的任何修改、 等同替换、 改进等， 均应包含在 本发明的保护范围之内。
工业实用性
与现有技术相比，本发明可以在不使用 NFC功能时将天线隐藏在手持终 端的电池壳构件中， 而在需要使用 NFC功能时将天线拉出电池壳构件使用， 故可在使用天线时有效地避免手持终端的电池及主板的不利影响， 提高了 NFC天线性能； 同时， 由于节省了传统的 NFC天线中使用的铁氧体材料， 大 大节约了终端设备的生产制造成本。

Claims

权 利 要 求 书
1、 一种使用近场通信天线的手持终端， 包括近场通信天线装置、 近场通 信主控装置以及电池壳构件， 其中：
所述电池壳构件包括电池壳和安装在该电池壳上的滑座；
所述近场通信天线装置与所述滑座滑动连接， 可固定于所述滑座内的第 一位置和第二位置， 并可在该第一位置和第二位置之间滑动； 其中，
当所述近场通信天线装置位于所述第二位置时， 该近场通信天线装置伸 出于所述电池壳构件之外， 且与所述近场通信主控装置电连接； 当所述近场 通信天线装置位于所述第一位置时， 所述近场通信天线装置收回在所述电池 壳构件中。
2、 按照权利要求 1所述的手持终端， 其中， 所述近场通信天线装置包括 滑动片及含近场通信天线的柔性印刷电路板， 其中： 所述滑动片与所述柔性印刷电路板层叠在一起， 并可在在所述电池壳构 件的所述滑座上滑动；
所述柔性印刷电路板上印制有所述近场通信天线的线圈， 并配有与所述 近场通信主控装置的馈电弹脚相接触的馈电点。
3、 按照权利要求 2所述的手持终端， 其中，
所述滑动片的第一端形成一个凸起部， 推动该凸起部可将所述滑动片的 与所述第一端相对的第二端滑出所述电池壳构件外；
所述电池壳上开有一孔以安装所述滑座， 且所述电池壳的位于所述滑动 片的第二端外的部分形成有允许滑动片从中穿过的一狭长的滑出孔。
4、 按照权利要求 2所述的手持终端， 其中，
所述滑座设置有一对滑槽或一对滑轨；
所述滑动片通过一对凸起条与所述一对滑槽配合滑动在相应的滑槽中， 或通过一对凹下条与所述一对滑轨配合滑动在相应的滑轨上。
5、 按照权利要求 2所述的手持终端， 其中，
所述滑动片用绝缘材料制成， 并通过背胶粘接方式与所述柔性印刷电路 板层叠在一起；
所述柔性印刷电路板上喷涂保护膜， 印制的所述近场通信天线的线圈的 绕线形状是圓形、 椭圓形以及矩形几何形状中的任意一种。
6、 按照权利要求 3或 4所述的手持终端， 还包括中壳， 所述中壳与所述 滑动片接触的部分向上翘起并具有弹性； 其中，
在所述第一位置， 所述滑动片的第一端 ·ί氐顶在所述电池壳内侧形成的一 凸缘上， 所述滑动片的第二端 ·ί氏顶在所述滑座和所述中壳的与所述第二端相 对应的位置的内沿上， 同时所述滑动片上柔性印刷电路板的馈电点与所述近 场通信主控装置的馈电弹脚相分离；
在所述第二位置， 所述滑动片的凸起部的朝向所述滑动片的第二端的一 端 ·ί氏顶在所述滑座或所述电池壳的与所述第二端相对应的位置的内沿上， 所 述凸起部的另一端则抵顶在中壳翘起部分的内沿上； 同时所述滑动片上柔性 印刷电路板的馈电点与所述近场通信主控装置的馈电弹脚相接触。
7、一种使用在手持终端中的近场通信天线装置， 包括滑动片及含近场通 信天线的柔性印刷电路板， 其中：
所述柔性印刷电路板印制有所述近场通信天线的线圈， 并配有与所述手 持终端的近场通信主控装置相接触的馈电点；
所述滑动片与所述柔性印刷电路板层叠在一起， 滑动连接于所述手持终 端的电池壳上的一滑座内， 可固定于所述滑座内的第一位置和第二位置， 并 可在该第一位置和第二位置之间滑动。
8、 按照权利要求 7所述的装置， 其中，
所述滑动片的第一端形成一个凸起部， 推动该凸起部可将所述滑动片的 与所述第一端相对的第二端滑出所述手持终端的电池壳外。
9、 按照权利要求 7所述的装置， 其中，
所述滑动片用绝缘材料制成， 通过背胶粘接方式与所述柔性印刷电路板 层叠在一起；
所述柔性印刷电路板上喷涂保护膜， 印制的所述近场通信天线的线圈的 绕线形状是圓形、 椭圓形以及矩形几何形状中的任意一种。
10、 按照权利要求 8或 9所述的装置， 其中，
在所述第一位置， 所述滑动片的第一端 ·ί氐顶在所述电池壳内侧形成的一 凸缘上， 所述滑动片的第二端 ·ί氏顶在所述滑座和所述手持终端的中壳的与所 述第二端相对应的位置的内沿上； 同时所述柔性印刷电路板的馈电点与所述 手持终端的近场通信主控装置电气分离；
在所述第二位置， 所述滑动片的凸起部的朝向所述滑动片的第二端的一 端 ·ί氏顶在所述滑座或所述电池壳的与所述第二端相对应的位置的内沿上， 所 述凸起部另一端则抵顶在中壳的翘起部分的内沿上； 同时所述柔性印刷电路 板的馈电点与所述手持终端的近场通信主控装置电气接触。
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