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WO2017008384A1 - 一种天线结构及移动终端 - Google Patents

一种天线结构及移动终端 Download PDF

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Publication number
WO2017008384A1
WO2017008384A1 PCT/CN2015/089203 CN2015089203W WO2017008384A1 WO 2017008384 A1 WO2017008384 A1 WO 2017008384A1 CN 2015089203 W CN2015089203 W CN 2015089203W WO 2017008384 A1 WO2017008384 A1 WO 2017008384A1
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WO
WIPO (PCT)
Prior art keywords
contact
terminal
wireless charging
radio
circuit
Prior art date
Application number
PCT/CN2015/089203
Other languages
English (en)
French (fr)
Inventor
刘世伟
陈涛
宁金星
王建成
马彦青
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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 WO2017008384A1 publication Critical patent/WO2017008384A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—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

Definitions

  • the utility model relates to the field of mobile terminal design, in particular to an antenna structure and a mobile terminal.
  • the wireless charging technology of the mobile terminal is very mature, and the wireless charging function of the mobile terminal needs to have a specific coil as the receiving antenna; and most mobile terminals have FM (Frequency Modulation) FM radio function, FM of the mobile terminal.
  • FM Frequency Modulation
  • the radio function also requires a specific antenna to receive radio and broadcast signals.
  • FIG. 1 is a schematic structural diagram of the wireless charging antenna and the FM radio receiving antenna in the prior art, as shown in FIG. 1 .
  • the wireless charging coil and the FM radio receiving antenna are independently arranged, which not only increases the design cost, but also increases the weight and volume of the mobile terminal, and reduces resource utilization.
  • the embodiments of the present invention are expected to provide an antenna structure and a mobile terminal, which can realize reasonable multiplexing of the wireless charging antenna and the FM radio receiving antenna, reduce the design cost of the mobile terminal, and improve the utilization efficiency of resources.
  • An embodiment of the present invention provides an antenna structure, where the antenna structure includes: a coil structure for receiving a wireless charging signal and an FM radio signal, and an adjustment circuit for adjusting an FM radio signal;
  • the coil structure includes a first contact that provides a wireless charging signal to a wireless charging receiving circuit And a second contact, and a third contact for providing an FM radio signal to the FM radio; wherein the first contact and the second contact are respectively connected to a wireless charging receiving circuit, the third contact and the adjusting circuit Connected
  • the adjustment circuit includes a first terminal and a second terminal, the first terminal being coupled to the FM radio via a matching circuit, and the second terminal being coupled to the third contact of the coil structure.
  • the coil structure includes a metal coil that receives a wireless charging signal and an FM radio signal, and a ferrite that shields the metal coil signal, and the metal coil is pasted on the ferrite.
  • the first contact and the second contact of the coil structure are respectively connected to the wireless charging receiving circuit through two metal domes.
  • the first contact and the second contact of the coil structure are two terminals of the metal coil; and the third contact of the coil structure is a tap in the middle of the coil structure.
  • a resonant capacitor is connected between the first terminal and the second terminal of the adjusting circuit
  • the adjustment circuit further includes a third terminal connected to the second contact of the coil structure
  • a parallel inductor is connected between the third terminal of the adjusting circuit and the resonant capacitor
  • a series inductance is further connected between the first terminal of the adjustment circuit and the resonant capacitor.
  • the embodiment of the present invention further provides a mobile terminal, wherein the mobile terminal includes: a main processor CPU that controls the antenna structure to implement a wireless charging function and an FM radio function, a wireless charging receiving circuit, an FM radio, and an FM radio signal matching.
  • a main processor CPU that controls the antenna structure to implement a wireless charging function and an FM radio function
  • a wireless charging receiving circuit to implement a wireless charging function and an FM radio function
  • a wireless charging receiving circuit to implement a wireless charging receiving circuit
  • an FM radio and an FM radio signal matching.
  • An antenna structure for receiving a wireless charging signal and an FM radio signal wherein
  • the CPU is connected to a wireless charging receiving circuit and an FM radio;
  • the antenna structure includes a coil structure for receiving a wireless charging signal and an FM radio signal, and an adjustment circuit for adjusting an FM radio signal;
  • the coil structure includes a first contact and a second contact that provide a wireless charging signal for a wireless charging receiving circuit, and a third contact that provides an FM radio signal to the FM radio; wherein the first contact and the second contact The contacts are respectively connected to the wireless charging receiving circuit, and the third contact is connected to the adjusting circuit;
  • the adjustment circuit includes a first terminal and a second terminal, the first terminal is connected to the matching circuit, and the second terminal is connected to the third contact of the coil structure;
  • the first terminal of the matching circuit is connected to the second terminal of the adjusting circuit, and the second terminal is connected to the FM radio.
  • the coil structure includes a metal coil that receives a wireless charging signal and an FM radio signal, and a ferrite that shields the metal coil signal, and the metal coil is pasted on the ferrite.
  • the first contact and the second contact of the coil structure are respectively connected to the wireless charging receiving circuit through two metal domes.
  • the first contact and the second contact of the coil structure are two terminals of the metal coil; and the third contact of the coil structure is a tap in the middle of the coil structure.
  • a resonant capacitor is connected between the first terminal and the second terminal of the adjusting circuit
  • the adjustment circuit further includes a third terminal connected to the second contact of the coil structure
  • a parallel inductor is connected between the third terminal of the adjusting circuit and the resonant capacitor
  • a series inductance is further connected between the first terminal of the adjustment circuit and the resonant capacitor.
  • the antenna structure and the mobile terminal provided by the embodiments of the present invention include a coil structure for receiving a wireless charging signal and an FM radio signal, and an adjustment circuit for adjusting an FM radio signal; wherein the coil structure includes providing a wireless charging signal for the wireless charging receiving circuit a first contact and a second contact, and a third contact for providing an FM radio signal to the FM radio; wherein the a contact and a second contact are respectively connected to the wireless charging receiving circuit, and the third contact is connected to the adjusting circuit; the adjusting circuit includes a first terminal and a second terminal, and the first terminal passes through the matching circuit The FM radio is connected and the second terminal is connected to the third contact of the coil structure.
  • the function of the wireless charging antenna and the FM radio receiving antenna can be realized by one coil structure, and the reasonable multiplexing of the wireless charging antenna and the FM radio receiving antenna can be realized, so that the mobile terminal does not need to design too many antenna structures, and the mobile terminal is lowered. Design costs and improve the efficiency of resource utilization.
  • FIG. 1 is a schematic structural diagram of a wireless charging antenna and an FM radio receiving antenna in the prior art
  • FIG. 2 is a schematic structural view of an antenna of the present invention
  • Figure 3 is a schematic view showing the structure of the coil of the present invention.
  • Figure 4 is a schematic structural view of the adjustment circuit of the present invention.
  • FIG. 5 is a schematic structural view of a mobile terminal of the present invention.
  • the mobile terminal includes: a main processor CPU that controls an antenna structure to implement a wireless charging function and an FM radio function, a wireless charging receiving circuit, an FM radio, a matching circuit for adjusting an FM radio signal, and a receiving wireless charging.
  • An antenna structure of a signal and an FM radio signal wherein the CPU is connected to a wireless charging receiving circuit and an FM radio; the antenna structure includes a coil structure for receiving a wireless charging signal and an FM radio signal, and an adjusting circuit for adjusting an FM radio signal;
  • the coil structure includes a first contact and a second contact that provide a wireless charging signal for the wireless charging receiving circuit, and a third contact that provides an FM radio signal to the FM radio; wherein the first contact and the first contact The two contacts are respectively connected to the wireless charging receiving circuit, the third contact is connected to the adjusting circuit;
  • the adjusting circuit comprises a first terminal and a second terminal, the first terminal is connected with the matching circuit, the second terminal and the coil a third contact of the structure is connected; the first terminal of the matching circuit is opposite to the second terminal of the regulating circuit , And a second terminal The FM radio is connected.
  • the CPU manages and controls the wireless charging receiving circuit and the FM radio through commands, unified scheduling management, and implements a wireless charging function and an FM radio function.
  • the matching circuit and the adjusting circuit match and adjust the FM radio signal to adjust the performance of the FM radio; the coil structure acts as an antenna, and the wireless charging receiving circuit and the FM radio receive signals transmitted from an external transmitting end, thereby implementing wireless charging.
  • Reasonable multiplexing of the receiving circuit and the FM radio receiving antenna are examples of the receiving circuit and the FM radio receiving antenna.
  • the antenna structure includes: a coil structure 21 and an adjustment circuit 22;
  • the coil structure 21 is configured to receive a wireless charging signal and an FM radio signal
  • the coil structure 21 includes a metal coil 211 that receives a wireless charging signal and an FM radio signal, and an iron that shields a metal coil signal.
  • the oxygen coil 212 is adhered to the ferrite 212 by a backing; the ferrite 212 is located between the mobile terminal main board and the metal coil 211, so that the signal on the metal coil 211 can be shielded to avoid the metal coil.
  • the signal on 211 interferes with other functions of the mobile terminal.
  • the metal coil 211 includes three contacts, wherein the first contact and the second contact are connected to a wireless charging receiving circuit to provide a wireless charging signal for the wireless charging receiving circuit; the third contact and the adjusting circuit Connected to provide an FM radio signal for the FM radio; here, since the FM radio receiving antenna is shorter than the metal coil required for the wireless charging receiving circuit receiving antenna, the first contact and the second contact of the coil structure are metal
  • the two terminals of the coil 211; the third contact of the coil structure is a tap in the middle of the metal coil.
  • the third contact is merely taken as an example of the tapping method shown in FIG. 3, and is not limited to this range.
  • the first contact, the second contact, and the third contact of the coil structure 21 may be connected to the wireless charging receiving circuit and the FM radio through a metal dome, or may be connected by other wireless methods.
  • the charging receiving circuit is connected to the FM radio, and the present invention is not limited to the connection method herein.
  • the first contact and the second contact of the coil structure 21 are connected to the wireless charging receiving circuit through a metal dome.
  • the coil structure 21 serves as a receiving antenna of the wireless charging receiving circuit.
  • the wireless charging receiving circuit receives the signal.
  • the number of turns, the material, and the like of the metal coil 211 in the coil structure 21 can be determined according to the wireless charging debugging situation;
  • the third contact of the coil structure 21 is connected to the FM radio by a metal dome.
  • the coil structure 21 serves as a receiving antenna of the FM radio and receives signals for the FM radio.
  • the reason why the center tap of the coil is used as the third contact is because the length of the coil required for the FM radio receiving antenna is shorter than that of the wireless receiver receiving antenna; in practical applications, the third touch The position of the tap of the point depends on the commissioning situation.
  • the adjustment circuit 22 is configured to adjust an FM radio signal to adjust performance when the coil structure is improved as an FM antenna;
  • the adjustment circuit 22 includes a first terminal 221 and a second terminal 222, wherein between the first terminal 221 and the second terminal 222 A resonant capacitor 223 is connected, the first terminal 221 is connected to the FM radio through a matching circuit, and the second terminal 222 is connected to the third contact of the coil structure.
  • the adjustment circuit 22 further includes a third terminal 224, and the third terminal 224 is connected to the second contact of the coil structure 21; the third terminal 224 of the adjustment circuit and the resonant capacitor 223 Connected to the connected parallel inductor 225; a series inductor 226 is further connected between the first terminal 221 of the regulating circuit and the resonant capacitor.
  • connection between the third terminal and the second contact of the coil structure 21 can be broken, as shown by the dashed line in FIG. 4;
  • the resonant capacitor 223 is configured to isolate the influence of the signal frequency during wireless charging operation on the FM radio. Since wireless charging works, the wireless charging protocol stipulates that its operating frequency is 115KHZ to 205KHZ, and usually the operating frequency of the FM radio is 70MHZ to 90MHZ or 87.5MHZ to 108MHZ. Therefore, by properly selecting the capacitance value of the resonant capacitor 223, the wireless can be wirelessly charged. The low frequency signal in the charging signal is isolated.
  • the FM radio signal at the third contact of the coil structure 21 may be considered to increase the series inductance 226 between the resonant capacitor 223 and the first terminal, or at the resonant capacitor 223 and A parallel inductor 225 is added between the third terminals.
  • the inductance of the series inductor 226 and the shunt inductor 225 By adjusting the inductance of the series inductor 226 and the shunt inductor 225, a higher quality FM radio signal is obtained.
  • FIG. 5 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 5, the mobile terminal main processor CPU 51, a wireless charging receiving circuit 52, an FM radio 53, a matching circuit 54, and an antenna structure 55;
  • the CPU 51 is connected to the wireless charging receiving circuit 52 and the FM radio 53 and configured to control the antenna structure to implement a wireless charging function and an FM radio function;
  • the antenna structure 55 is configured to receive a wireless charging signal and an FM radio signal
  • the antenna structure 55 includes a coil structure 551 and an adjustment circuit 552, wherein the coil structure 551 is configured to receive a wireless charging signal and an FM radio signal;
  • the coil structure 551 includes a metal coil configured to receive a wireless charging signal and an FM radio signal, and a ferrite configured to shield the metal coil signal; the metal coil The adhesive is adhered to the ferrite; the ferrite is located between the mobile terminal main board and the metal coil, so that the signal on the metal coil can be shielded to prevent the signal on the metal coil from interfering with other functions of the mobile terminal.
  • the coil structure 51 includes three contacts, wherein the first contact and the second contact are connected to a wireless charging receiving circuit to provide a wireless charging signal for the wireless charging receiving circuit; the third contact and the adjusting circuit Connected to provide an FM radio signal for the FM radio; here, since the FM radio receiving antenna is shorter than the metal coil required for the wireless charging receiving circuit receiving antenna, the first contact and the second contact of the coil structure are metal The two terminals of the coil; the third contact of the coil structure is a tap in the middle of the metal coil.
  • the first contact, the second contact, and the third contact of the coil structure 551 may be connected to the wireless charging receiving circuit and the FM radio through a metal dome, and may also adopt other connection methods and wireless.
  • the charging receiving circuit is connected to the FM radio, and the present invention is not limited to the connection method herein.
  • the first contact and the second contact of the coil structure 551 are connected to the wireless charging receiving circuit through a metal dome.
  • the coil structure 551 serves as a receiving antenna of the wireless charging receiving circuit.
  • the wireless charging receiving circuit receives the signal.
  • the number of turns, the material, and the like of the metal coil in the coil structure 551 can be determined according to the wireless charging debugging situation;
  • the third contact of the coil structure 551 is connected to the FM radio by a metal dome.
  • the coil structure 551 serves as a receiving antenna of the FM radio and receives signals for the FM radio.
  • the reason why the center tap of the coil is used as the third contact is because the length of the coil required for the FM radio receiving antenna is shorter than that of the wireless receiver receiving antenna; in practical applications, the third The position of the tap of the contact depends on the commissioning situation.
  • the adjustment circuit 552 is configured to adjust an FM radio signal to adjust performance when the coil structure is improved as an FM antenna;
  • the adjustment circuit 552 includes a first terminal and a second terminal, wherein a resonant capacitor is connected between the first terminal and the second terminal, the first terminal is connected to the matching circuit, and the second The terminal is connected to the third contact of the coil structure;
  • the adjustment circuit 553 further includes a third terminal, the third terminal and the second structure of the coil The contacts are connected; a parallel inductor is connected between the third terminal of the adjusting circuit and the resonant capacitor; and a series inductor is further connected between the first terminal of the adjusting circuit and the resonant capacitor.
  • the resonant capacitor 3 is configured to isolate the influence of the signal frequency during wireless charging operation on the FM radio. Due to the wireless charging operation, the wireless charging protocol stipulates that its operating frequency is 115KHZ to 205KHZ, and usually the FM radio operates at 70MHZ to 90MHZ or 87.5MHZ to 108MHZ. Therefore, the capacitor value of the resonant capacitor 3 can be reasonably selected to be wireless. The low frequency signal in the charging signal is isolated.
  • the FM radio signal at the third contact of the coil structure 551 may be considered to increase the series inductance 6 between the resonant capacitor and the first terminal, or in the resonant capacitor and the third A parallel inductance is added between the terminals, and the FM radio signal of higher quality is obtained by adjusting the series inductance and the parallel inductance value.
  • the matching circuit 54 is configured to adjust an FM radio signal, the first terminal of the matching circuit is connected to the second terminal of the adjusting circuit, and the second terminal is connected to the FM radio, as shown in FIG. 5, the matching circuit 54 An inductor is connected between the first terminal and the second terminal, and the first terminal and the second terminal are grounded through a capacitor respectively.
  • the embodiment of the present invention is merely an example of the matching circuit shown in FIG. 5, but the scope is not limited. The components and the connection relationship of the matching circuit can be set according to actual conditions, and the embodiment of the present invention is incorrect. This is limited.
  • the antenna structure and the working process of the mobile terminal of the utility model are as follows:
  • the CPU When the user operates the mobile terminal through an IO interface (such as a button or a touch screen) and enables the FM radio application, the CPU receives the task of turning on the FM radio and issues a command to call the FM radio function. After the FM radio receives the command from the CPU, it starts to work and is received through the antenna structure. From external radio station signals. At this time, the coil structure serves as an FM radio receiving antenna, receives a broadcast station signal from the outside, and transmits the signal to the receiving end of the FM radio through a contact such as a shrapnel. By properly selecting the inductance and capacitance parameters of the adjustment circuit and the matching circuit, the effective signal can be transmitted to the FM radio to adequately filter the excess invalid noise signal to avoid false or invalid signals.
  • an IO interface such as a button or a touch screen
  • the antenna structure When the antenna structure is used as a wireless charging receiving circuit to receive the antenna:
  • the CPU When the user places the mobile terminal on the wireless charging transmitting end (such as the wireless charging stand), the CPU initiates the wireless charging function by command, the wireless charging receiving circuit opens the receiving path, and starts receiving the signal from the wireless charging transmitting end through the antenna structure. At this time, the antenna structure is charged with a wireless charging receiving antenna;
  • the working process is as follows:
  • the inductance and capacitance parameters of the adjustment circuit and the matching circuit can be effectively used to effectively operate the FM radio.
  • the signal is isolated from the wireless charging signal so that it does not affect the completion of both functions.
  • the antenna structure of the present invention can be used as a receiving antenna of a wireless charging receiving circuit, and can also be reused as an FM radio receiving antenna, which can meet the requirements of wireless charging and realize the function of FM radio, thereby simplifying the mobile terminal.
  • the antenna structure reduces the production cost of the mobile terminal and improves the utilization of resources.

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Abstract

本实用新型实施例公开了一种天线结构，包括：接收无线充电信号和FM收音机信号的线圈结构、调节FM收音机信号的调节电路；所述线圈结构包括为无线充电接收电路提供无线充电信号的第一触点和第二触点、以及为FM收音机提供FM收音机信号的第三触点；其中，所述第一触点和第二触点分别与无线充电接收电路相连，所述第三触点与调节电路相连；所述调节电路包括第一端子和第二端子，所述第一端子通过匹配电路与FM收音机相连，第二端子与线圈结构的第三触点相连。本实用新型实施例还公开了一种移动终端。

Description

一种天线结构及移动终端 技术领域
本实用新型涉及移动终端设计领域，特别涉及一种天线结构及移动终端。
背景技术
目前移动终端的无线充电技术已经很十分成熟，移动终端的无线充电功能需要有特定的线圈作为接收天线；并且，大部分移动终端都具备调频(FM，Frequency Modulation)FM收音机功能，移动终端的FM收音机功能也需要有特定天线接收电台和广播信号。
现有的移动终端中，支持无线充电的接收天线以及支持FM收音机功的接收天线分别独立设置在移动终端中，图1为现有技术中无线充电天线和FM收音机接收天线结构示意图，如图1所示，无线充电线圈与FM收音机接收天线独立设置，这不仅增加了设计成本，也会增大移动终端的重量和体积，降低资源利用率。
实用新型内容
有鉴于此，本实用新型实施例期望提供一种天线结构及移动终端，能够实现无线充电天线和FM收音机接收天线的合理的复用，降低移动终端设计成本，提高资源的利用效率。
为达到上述目的，本实用新型实施例的技术方案是这样实现的：
本实用新型实施例提供了一种天线结构，所述天线结构包括：接收无线充电信号和FM收音机信号的线圈结构、调节FM收音机信号的调节电路；
所述线圈结构包括为无线充电接收电路提供无线充电信号的第一触点 和第二触点、以及为FM收音机提供FM收音机信号的第三触点；其中，所述第一触点和第二触点分别与无线充电接收电路相连，所述第三触点与调节电路相连；
所述调节电路包括第一端子和第二端子，所述第一端子通过匹配电路与FM收音机相连，第二端子与线圈结构的第三触点相连。
上述方案中，所述线圈结构包括接收无线充电信号和FM收音机信号的金属线圈以及屏蔽金属线圈信号的铁氧体，所述金属线圈粘贴在铁氧体上。
上述方案中，所述线圈结构的第一触点和第二触点分别通过两个金属弹片与无线充电接收电路相连。
上述方案中，所述线圈结构的第一触点和第二触点为金属线圈的两个端子；所述线圈结构的第三触点为线圈结构中间的抽头。
上述方案中，所述调节电路的第一端子和第二端子之间连接有谐振电容；
所述调节电路还包括第三端子，所述第三端子与线圈结构的第二触点相连；
所述调节电路的第三端子与谐振电容之间连接有并联电感；
所述调节电路的第一端子与谐振电容之间还连接有串联电感。
本实用新型实施例还提供了一种移动终端，所述移动终端包括：控制天线结构实现无线充电功能和FM收音机功能的主处理器CPU、无线充电接收电路、FM收音机、调节FM收音机信号的匹配电路、接收无线充电信号和FM收音机信号的天线结构；其中，
所述CPU与无线充电接收电路和FM收音机相连；
所述天线结构包括接收无线充电信号和FM收音机信号的线圈结构、调节FM收音机信号的调节电路；其中，
所述线圈结构包括为无线充电接收电路提供无线充电信号的第一触点和第二触点、以及为FM收音机提供FM收音机信号的第三触点；其中，所述第一触点和第二触点分别与无线充电接收电路相连，所述第三触点与调节电路相连；
所述调节电路包括第一端子和第二端子，所述第一端子与匹配电路相连，第二端子与线圈结构的第三触点相连；
所述匹配电路的第一端子与调节电路的第二端子相连，第二端子与FM收音机相连。
上述方案中，所述线圈结构包括接收无线充电信号和FM收音机信号的金属线圈以及屏蔽金属线圈信号的铁氧体，所述金属线圈粘贴在铁氧体上。
上述方案中，所述线圈结构的第一触点和第二触点分别通过两个金属弹片与无线充电接收电路相连。
上述方案中，所述线圈结构的第一触点和第二触点为金属线圈的两个端子；所述线圈结构的第三触点为线圈结构中间的抽头。
上述方案中，所述调节电路的第一端子和第二端子之间连接有谐振电容；
所述调节电路还包括第三端子，所述第三端子与线圈结构的第二触点相连；
所述调节电路的第三端子与谐振电容之间连接有并联电感；
所述调节电路的第一端子与谐振电容之间还连接有串联电感。
本实用新型实施例提供的天线结构及移动终端，包括接收无线充电信号和FM收音机信号的线圈结构、调节FM收音机信号的调节电路；其中，所述线圈结构包括为无线充电接收电路提供无线充电信号的第一触点和第二触点、以及为FM收音机提供FM收音机信号的第三触点；其中，所述第 一触点和第二触点分别与无线充电接收电路相连，用所述第三触点与调节电路相连；所述调节电路包括第一端子和第二端子，所述第一端子通过匹配电路与FM收音机相连，第二端子与线圈结构的第三触点相连。如此，能够通过一个线圈结构同实现无线充电天线和FM收音机接收天线的功能，实现无线充电天线和FM收音机接收天线的合理的复用，使得移动终端中无需设计过多的天线结构，降低移动终端设计成本，提高资源的利用效率。
附图说明
图1为现有技术中无线充电天线和FM收音机接收天线结构示意图；
图2为本实用新型天线结构示意图；
图3为本实用新型线圈结构示意图；
图4为本实用新型调节电路结构示意图；
图5为本实用新型移动终端结构示意图。
具体实施方式
在本实用新型实施例中，所述移动终端包括：控制天线结构实现无线充电功能和FM收音机功能的主处理器CPU、无线充电接收电路、FM收音机、调节FM收音机信号的匹配电路、接收无线充电信号和FM收音机信号的天线结构；其中，所述CPU与无线充电接收电路和FM收音机相连；所述天线结构包括接收无线充电信号和FM收音机信号的线圈结构、调节FM收音机信号的调节电路；其中，所述线圈结构包括为无线充电接收电路提供无线充电信号的第一触点和第二触点、以及为FM收音机提供FM收音机信号的第三触点；其中，所述第一触点和第二触点分别与无线充电接收电路相连，所述第三触点与调节电路相连；所述调节电路包括第一端子和第二端子，所述第一端子与匹配电路相连，第二端子与线圈结构的第三触点相连；所述匹配电路的第一端子与调节电路的第二端子相连，第二端子与 FM收音机相连。
在一实施例中，CPU通过命令对无线充电接收电路和FM收音机进行管理和控制，统一调度管理并实现无线充电功能和FM收音机功能。所述匹配电路和调节电路，匹配和调节FM收音机信号，以调节FM收音机的性能；所述线圈结构作为天线，为无线充电接收电路以及FM收音机接收来自外部发送端发送的信号，从而实现无线充电接收电路以及FM收音机接收天线的合理复用。
下面结合附图及实施例，对本实用新型实施例天线结构和移动终端进行详细的说明。
图2为本实用新型实施例天线结构示意图，本实施例中，所述天线结构包括：线圈结构21、调节电路22；
其中，所述线圈结构21配置为接收无线充电信号和FM收音机信号；
图3为本实用新型实施例线圈结构示意图，如图3所示，本实用新型实施例中，所述线圈结构21包括接收无线充电信号和FM收音机信号的金属线圈211以及屏蔽金属线圈信号的铁氧体212，所述金属线圈211通过背胶粘贴在铁氧体212上；所述铁氧体212位于移动终端主板与金属线圈211中间，从而可以屏蔽金属线圈211上的信号，避免金属线圈211上的信号对移动终端的其他功能产生干扰。
所述金属线圈211包括三个触点，其中，所述第一触点和第二触点与无线充电接收电路相连，为无线充电接收电路提供无线充电信号；所述第三触点与调节电路相连，为FM收音机提供FM收音机信号；这里，由于FM收音机接收天线比无线充电接收电路接收天线所需的金属线圈要短，因此，所述线圈结构的第一触点和第二触点为金属线圈211的两个端子；所述线圈结构的第三触点为金属线圈中间的抽头。本实用新型实施例中，所述第三触点仅仅是以图3所示抽头方式为例，并不限于此范围。
本实用新型实施例中，所述线圈结构21的第一触点、第二触点、第三触点可以通过金属弹片与无线充电接收电路和FM收音机相连，也可以采用其他的连接方式与无线充电接收电路和FM收音机相连，本实用新型并不限定这里的连接方式。
例如，本实用新型实施例中，所述线圈结构21的第一触点、第二触点通过金属弹片与无线充电接收电路相连，此时，线圈结构21作为无线充电接收电路的接收天线，为无线充电接收电路接收信号。这里，所述线圈结构21中的金属线圈211的匝数、材质等可以依照无线充电调试情况确定；
所述线圈结构21的第三触点通过金属弹片与FM收音机相连，此时，线圈结构21作为FM收音机的接收天线，为FM收音机接收信号。本实用新型实施例中，之所以从线圈的中间抽头作为第三触点是因为相比无线充器接收天线而言，FM收音机接收天线所需要的线圈长度更短；实际应用中，第三触点的抽头的位置依照调试情况而定。
所述调节电路22配置为调节FM收音机信号，调节改善线圈结构作为FM天线时的性能；
图4为本实用新型实施例调节电路结构示意图，如图4所示，所述调节电路22包括第一端子221和第二端子222，其中，所述第一端子221和第二端子222之间连接有谐振电容223，所述第一端子221通过匹配电路与FM收音机相连，第二端子222与线圈结构的第三触点相连。
本实用新型实施例中，所述调节电路22还包括第三端子224，所述第三端子224与线圈结构21的第二触点相连；所述调节电路的第三端子224与谐振电容223之间连接有相连并联电感225；所述调节电路的第一端子221与谐振电容之间还连接有串联电感226。
在实际应用中，如果不需要并联电感225，则可以将第三端子与线圈结构21的第二触点之间的连接断开，在图4中，以虚线表示；
无线充电接收电路和FM收音机有可能同时使用，本实用新型实施例中，所述谐振电容223配置为隔离无线充电工作时的信号频率对FM收音机的影响。由于无线充电工作时，无线充电协议规定其工作频率为115KHZ至205KHZ，而通常FM收音机的工作频率为70MHZ至90MHZ或87.5MHZ至108MHZ，因此，合理选择谐振电容223的电容值，即可将无线充电信号中的低频信号进行隔离。在调试FM阶段，如果线圈结构21的第三触点处的FM收音机信号和目标值仍然有偏差，可以考虑在谐振电容223和第一端子之间增加串联电感226，或者在在谐振电容223和第三端子之间增加并联电感225，通过调整串联电感226和并联电感225电感值，获得质量较高的FM收音机信号。
本实用新型实施例中，仅仅是以图4所示的调节电路结构为例，并不限于此范围。
图5为本实用新型实施例移动终端结构示意图，如图5所示，所述移动终端主处理器CPU51、无线充电接收电路52、FM收音机53、匹配电路54、天线结构55；其中，
所述CPU51与无线充电接收电路52和FM收音机53相连，配置为控制天线结构实现无线充电功能和FM收音机功能；
所述天线结构55配置为接收无线充电信号和FM收音机信号；
本实用新型实施例中，所述天线结构55包括线圈结构551和调节电路552，其中，所述线圈结构551配置为接收无线充电信号和FM收音机信号；
在一实施例中，所述线圈结构551包括金属线圈以及铁氧体，所述金属线圈配置为接收无线充电信号和FM收音机信号；所述铁氧体配置为屏蔽金属线圈信号；所述金属线圈通过背胶粘贴在铁氧体上；所述铁氧体位于移动终端主板与金属线圈中间，从而可以屏蔽金属线圈上的信号，避免金属线圈上的信号对移动终端的其他功能产生干扰。
所述线圈结构51包括三个触点，其中，所述第一触点和第二触点与无线充电接收电路相连，为无线充电接收电路提供无线充电信号；所述第三触点与调节电路相连，为FM收音机提供FM收音机信号；这里，由于FM收音机接收天线比无线充电接收电路接收天线所需的金属线圈要短，因此，所述线圈结构的第一触点和第二触点为金属线圈的两个端子；所述线圈结构的第三触点为金属线圈中间的抽头。
本实用新型实施例中，所述线圈结构551的第一触点、第二触点、第三触点可以通过金属弹片与无线充电接收电路和FM收音机相连，也可以采用其他的连接方式与无线充电接收电路和FM收音机相连，本实用新型并不限定这里的连接方式。
例如，本实用新型实施例中，所述线圈结构551的第一触点、第二触点通过金属弹片与无线充电接收电路相连，此时，线圈结构551作为无线充电接收电路的接收天线，为无线充电接收电路接收信号。这里，所述线圈结构551中的金属线圈的匝数、材质等可以依照无线充电调试情况确定；
所述线圈结构551的第三触点通过金属弹片与FM收音机相连，此时，线圈结构551作为FM收音机的接收天线，为FM收音机接收信号。本实用新型实施例中，之所以从线圈的中间抽头作为第三触点是因为相比无线充器接收天线而言，FM收音机接收天线所需要的线圈长度更短；在实际应用中，第三触点的抽头的位置依照调试情况而定。
所述调节电路552配置为调节FM收音机信号，调节改善线圈结构作为FM天线时的性能；
在一实施例中，所述调节电路552包括第一端子和第二端子，其中，所述第一端子和第二端子之间连接有谐振电容，所述第一端子与匹配电路相连，第二端子与线圈结构的第三触点相连；
所述调节电路553还包括第三端子，所述第三端子与线圈结构的第二 触点相连；所述调节电路的第三端子与谐振电容之间连接有并联电感；所述调节电路的第一端子与谐振电容之间还连接有串联电感。
在实际应用中，如果不需要并联电感225，则可以将第三端子与线圈结构21的第二触点之间的连接断开；
无线充电接收电路和FM收音机有可能同时使用，本实用新型实施例中，所述谐振电容3配置为隔离无线充电工作时的信号频率对FM收音机的影响。由于无线充电工作时，无线充电协议规定其工作频率为115KHZ至205KHZ，而通常FM收音机的工作频率为70MHZ至90MHZ或87.5MHZ至108MHZ，因此，合理选择谐振电容3的电容值，即可将无线充电信号中的低频信号进行隔离。在调试FM阶段，如果线圈结构551的第三触点处的FM收音机信号和目标值仍然有偏差，可以考虑在谐振电容和第一端子之间增加串联电感6，或者在在谐振电容和第三端子之间增加并联电感，通过调整串联电感和并联电感值，获得质量较高的FM收音机信号。
所述匹配电路54配置为调节FM收音机信号的，所述匹配电路的第一端子与调节电路的第二端子相连，第二端子与FM收音机相连，如图5所示，所述匹配电路54的第一端子和第二端子之间连接有一个电感，同时所述第一端子和第二端子分别通过一个电容接地。本实用新型实施例仅仅是以图5中所示的匹配电路为例，但并不限定此范围，所述匹配电路内部的部件和连接关系可根据实际情况进行设定，本实用新型实施例不对此进行限定。
本实用新型所述天线结构及移动终端的工作过程如下：
当天线结构作为FM收音机接收天线时的工作过程：
当用户通过IO界面(如按键或触摸屏)操作移动终端并启用FM收音机应用时，CPU接受到开启FM收音机的任务，发出命令调用FM收音机功能。FM收音机收到CPU的命令后开始工作，通过所述天线结构接收来 自外部的广播电台信号。此时线圈结构作为FM收音机接收天线，接收来自外部的广播电台信号，并将该信号通过弹片等触点传输至FM收音机的接收端。合理选择调节电路和匹配电路的电感与电容参数，可以将有效信号传输至FM收音机，将多余的无效噪声信号进行充分的过滤，以避免出现假台或无效信号。
当天线结构作无线充电接收电路接收天线时的工作过程：
当用户将移动终端放置在无线充电发射端(如无线充电座)上时，CPU通过命令启动无线充电功能，无线充电接收电路打开接收通路，并通过所述天线结构开始接收来自无线充电发射端的信号，此时天线结构充电无线充电接收天线；
当天线结构同时作无线充电接收电路接收天线和FM收音机接收天线时时的工作过程：
与上述两个过程相同，当用户在收听FM收音机的同时进行无线充电时，由于两个功能的工作频率相差甚远，理选择调节电路和匹配电路的电感与电容参数，可以有效的将FM收音机信号和无线充电信号隔离，从而互不影响完成两种功能。
本实用新型所述天线结构，在被用作无线充电接收电路接收天线的同时，还可以复用作为FM收音机接收天线，既可以满足无线充电的需求，又可以实现FM收音机功能，从而简化移动终端的天线结构，降低了移动终端的生产成本，提高了资源的利用率。
虽然本实用新型以一种较佳的实施例揭露如上，然而并非限定本实用新型，在背离本实用新型实质的情况下，可以对本实用新型做出各种相应的改变和变形，这些改变和变形都属于本实用新型的权利要求保护范围。
以上所述，仅为本实用新型的较佳实施例而已，并非用于限定本实用新型的保护范围。

Claims (10)

  1. 一种天线结构，包括：接收无线充电信号和FM收音机信号的线圈结构、调节FM收音机信号的调节电路；
    所述线圈结构包括为无线充电接收电路提供无线充电信号的第一触点和第二触点、以及为FM收音机提供FM收音机信号的第三触点；其中，所述第一触点和第二触点分别与无线充电接收电路相连，所述第三触点与调节电路相连；
    所述调节电路包括第一端子和第二端子，所述第一端子通过匹配电路与FM收音机相连，第二端子与线圈结构的第三触点相连。
  2. 根据权利要求1所述天线结构，其中，所述线圈结构包括接收无线充电信号和FM收音机信号的金属线圈以及屏蔽金属线圈信号的铁氧体，所述金属线圈粘贴在铁氧体上。
  3. 根据权利要求2所述天线结构，其中，所述线圈结构的第一触点和第二触点分别通过两个金属弹片与无线充电接收电路相连。
  4. 根据权利要求1至3任一项所述天线结构，其中，所述线圈结构的第一触点和第二触点为金属线圈的两个端子；所述线圈结构的第三触点为线圈结构中间的抽头。
  5. 根据权利要求1所述天线结构，其中，所述调节电路的第一端子和第二端子之间连接有谐振电容；
    所述调节电路还包括第三端子，所述第三端子与线圈结构的第二触点相连；
    所述调节电路的第三端子与谐振电容之间连接有并联电感；
    所述调节电路的第一端子与谐振电容之间还连接有串联电感。
  6. 一种移动终端，包括：控制天线结构实现无线充电功能和FM收音 机功能的主处理器CPU、无线充电接收电路、FM收音机、调节FM收音机信号的匹配电路、接收无线充电信号和FM收音机信号的天线结构；其中，
    所述CPU与无线充电接收电路和FM收音机相连；
    所述天线结构包括接收无线充电信号和FM收音机信号的线圈结构、调节FM收音机信号的调节电路；其中，
    所述线圈结构包括为无线充电接收电路提供无线充电信号的第一触点和第二触点、以及为FM收音机提供FM收音机信号的第三触点；其中，所述第一触点和第二触点分别与无线充电接收电路相连，所述第三触点与调节电路相连；
    所述调节电路包括第一端子和第二端子，所述第一端子与匹配电路相连，第二端子与线圈结构的第三触点相连；
    所述匹配电路的第一端子与调节电路的第二端子相连，第二端子与FM收音机相连。
  7. 根据权利要求6所述移动终端，其中，所述线圈结构包括接收无线充电信号和FM收音机信号的金属线圈以及屏蔽金属线圈信号的铁氧体，所述金属线圈粘贴在铁氧体上。
  8. 根据权利要求7所述移动终端，其中，所述线圈结构的第一触点和第二触点分别通过两个金属弹片与无线充电接收电路相连。
  9. 根据权利要求6至8任一项所述移动终端，其中，所述线圈结构的第一触点和第二触点为金属线圈的两个端子；所述线圈结构的第三触点为线圈结构中间的抽头。
  10. 根据权利要求6所述移动终端，其中，所述调节电路的第一端子和第二端子之间连接有谐振电容；
    所述调节电路还包括第三端子，所述第三端子与线圈结构的第二触点相连；
    所述调节电路的第三端子与谐振电容之间连接有并联电感；
    所述调节电路的第一端子与谐振电容之间还连接有串联电感。
PCT/CN2015/089203 2015-07-16 2015-09-08 一种天线结构及移动终端 WO2017008384A1 (zh)

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CN107655500B (zh) * 2017-09-18 2020-05-05 青岛海信移动通信技术股份有限公司 终端设备
CN109495138B (zh) * 2018-10-29 2021-01-26 Oppo广东移动通信有限公司 天线装置和电子设备
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