CN103248092B - Adjustable wireless charging coil and application method thereof - Google Patents

Adjustable wireless charging coil and application method thereof Download PDF

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Publication number
CN103248092B
CN103248092B CN201310158325.8A CN201310158325A CN103248092B CN 103248092 B CN103248092 B CN 103248092B CN 201310158325 A CN201310158325 A CN 201310158325A CN 103248092 B CN103248092 B CN 103248092B
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coil
worm
controller
plate
wireless charging
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CN201310158325.8A
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CN103248092A (en
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陈新
吴永祥
宋英博
周元玲
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湖南人文科技学院
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Abstract

本发明提供一种可调节的无线充电线圈,它包括有发条线圈、线圈底板、提醒装置、控制器,其中,发条线圈采用导电材料制成螺旋发条状;步进电机安装在线圈底板下端,步进电机由控制器的电机驱动线连接驱动,步进电机的输出轴通过联轴器与蜗杆联接,蜗杆与蜗轮啮合,蜗轮的轴杆穿过线圈底板通过盖帽与安装在线圈底板上的发条线圈内圈联接,线圈内圈同时连接,发条线圈外端穿过线圈底板与线圈连线的中其中一条电源线联接,控制器安装在线圈底板上,提醒装置联接在控制器上。 The present invention provides an adjustable wireless charging coil which comprises a coil spring, the coil plate, reminder device controller, wherein the spring coil using the coil made of a conductive material strip; stepper motor mounted on the coil plate the lower end, connected to the stepping motor driven by the motor drive controller of the line, the output shaft of the stepping motor is coupled via a coupling with the worm, the worm wheel meshed with the worm, the worm shaft through the coil base cap by a coil mounted on the base plate the inner coil spring coupling, while the inner coil are connected, the outer end of the coil through the coil spring and the coil connection in the base plate wherein a power supply line coupled to the controller mounted on the coil plate, alert means coupled to the controller . 本结构调节方便、快捷,调节范围精度高。 This structure modulating convenient, fast, high precision adjustment range.

Description

一种可调节的无线充电线圈及其使用方法 An adjustable wireless charging coil and method of use

技术领域 FIELD

[0001] 本发明涉及无线充电技术领域,尤其是指一种可调节的无线充电线圈及其使用方法。 [0001] The present invention relates to the field of wireless charging technology, particularly to an adjustable wireless charging coil and method of use.

背景技术 Background technique

[0002] 面向无线充电的技术主要大致有如下四种方式:电磁感应方式、电波方式、磁共振方式和电场耦合方式。 [0002] The main technology for wireless charging four substantially as follows: an electromagnetic induction method, a radio wave, and the electric field resonance mode coupling. 其中磁共振方式由美国麻省理工学院(MIT)物理学家马林•索尔贾希克(Marin Soljacic)于2007年进行了验证,自此受到了广泛关注。 Wherein the magnetic resonance mode by the Massachusetts Institute of Technology (MIT) • 索尔贾希克 physicist Marin (Marin Soljacic) was validated in 2007 and has since received widespread attention. 这项技术利用了共振的原理,这表现为两个振动频率相同的物体能高效传输能量。 This technique utilizes the principle of resonance, which is reflected in the same vibration frequency of two objects to efficiently transfer energy. 利用磁共振方法可以在充电器与设备之间的空气中传输电荷,线圈和电容器则在充电器与设备之间形成共振,实现电能高效传输的技术。 Charge air may be transmitted between the charger and the device utilizing magnetic resonance method, a resonance coil and a capacitor is formed between the charger and the equipment, techniques to achieve efficient power transmission. 当两个物体的振动频率相同时,它们传递能量的强度不会受到周围事物的影响。 When the vibration frequencies of the two objects are the same, the intensity of the energy transfer are not affected by the surroundings. 电量只在以同一频率共振的线圈之间传输,这项技术允许设备在距离适配器最远可达几米远的地方进行无线充电。 Power transmission only at the same frequency between the resonance coils, the apparatus for wireless charging technology allows the adapter at a distance of up to several meters farthest away. 电磁共振充电的距离、效率都能满足大部分使用的需要。 Electromagnetic resonance charging distance, efficiency can meet most needs to use. 美国WiTricity在输出功率为3.3kW、传输距离为20cm的情况下使综合效率达到了90%。 In the United States WiTricity output power of 3.3kW, the overall efficiency of the transmission distance of 20cm case reached 90%. 磁共振方法在理论上虽然不错,不过在实际设计中还是遇到了很多麻烦。 The magnetic resonance method is good in theory, but in practical design still encountered a lot of trouble. 发送线圈和接收线圈的谐振频率必须保持一致,如果两个线圈的谐振频率有差异,系统的整个无线传输效率会有很大程度的降低。 Resonance frequency transmission coil and the receiving coil must be consistent, if the resonance frequencies of the two coils are different, the overall efficiency of the wireless transmission system will be reduced to a great extent. 但是由于制造工艺等原因,在量产中系统设计将发射与接收线圈共振频率设计成一致非常困难,成品合格率难以控制,而且电路本身、寄生电容和外部物体等,都会影响到线圈的谐振频率的变化,从而造成充电效率降低,导致电能的浪费。 However, due to the manufacturing process or the like, the resonant frequency of the mass production system designed to transmit and receive coil resonant frequency designed to conform very difficult rate of qualified products is difficult to control, and the circuit itself, the parasitic capacitance and the external object and the like, will affect the coils changes, resulting in reduced charging efficiency, resulting in waste of energy.

[0003] 在线圈设计中调整线圈共振频率的方式,还可以在电路中添加电感或电容的方法、或者在线圈外部添加铁氧体、金属片等方法来改变线圈的共振频率,但是上述这几种方法对线圈的品质因子可能造成很大的影响,而且在实际设计和使用中并不容易完成,所以一般不被采用。 [0003] In the design of the coil to adjust the resonant frequency of the coil embodiment, a method may be added inductance or capacitance in the circuit, the ferrite coil or external addition, a metal sheet or the like to change the resonant frequency of the coil, but these above method may cause a great impact on the quality factor of the coil, and is not easy to accomplish in the actual design and use, it is generally not employed. 目前在无线充电过程中输出功率进行调节时,目前一般是通过调节输出电压或者调节电源的输出频率达到输出功率的控制,而调节电压或者调节电源的输出频率也存在难以实现、反应缓慢等问题。 When the current output power adjustment in a wireless charging process in general is by adjusting the output voltage or adjust the output frequency of the power supply to control the output power, the regulated voltage or regulated supply output frequency is difficult to achieve, slow response and other issues.

[0004]目前的无线充电线圈设计一开始谐振频率就已经固定,但是由于制造和设计等的误差,往往两个线圈不会同时达到最佳谐振点,充电期间调节线圈的谐振频率调节目前存在很多难题。 [0004] Current wireless charging coil design has a fixed resonant frequency beginning, but because of the design and manufacturing errors or the like, two coils are often not the best resonance point is adjusted while the coil current during charging, there are many resonance frequency adjustment problem.

发明内容 SUMMARY

[0005] 本发明的目的在于克服现有技术的不足,提供一种结构简单、可有效提高无线充电的效率,并且可以方便快捷的调节无线充电功率输出的无线充电线圈设计及其使用方法。 [0005] The object of the present invention is to overcome the disadvantages of the prior art by providing a simple structure, can effectively improve the efficiency of wireless charging, and can easily and quickly adjusting the power output of the wireless charging wireless charging coil designs and methods of use.

[0006] 为实现上述目的,本发明所提供的技术方案为:一种可调节的无线充电线圈,它包括有步进电机、蜗轮、蜗杆、发条线圈、线圈底板、电机驱动线、提醒装置、控制器和线圈连线,其中,发条线圈采用导电材料制成螺旋发条状;步进电机安装在线圈底板下端,步进电机由控制器的电机驱动线连接驱动,步进电机的输出轴通过联轴器与蜗杆连接,蜗杆与蜗轮啮合,蜗轮的轴杆穿过线圈底板通过盖帽与安装在线圈底板上的发条线圈内圈连接,发条线圈外端穿过线圈底板与线圈连线的其中一条电源线连接,控制器安装在线圈底板上,提醒装置连接在控制器上。 [0006] To achieve the above object, the technical solution of the present invention provides: an adjustable wireless charging coil, comprising a stepping motor, worm, the worm, the coil spring, the coil plate, the motor driving line, prompting device , the controller and the coil wiring, wherein the spring coil using the coil made of a conductive material strip; stepper motor mounted on the lower end of the coil plate, driven by a stepper motor connected to the motor drive controller of the line, the output of the stepping motor via a coupling shaft connected with the worm, the worm wheel meshed with the worm, the worm shaft through the coil plate connected via a coil spring cap mounted on the bottom plate of the inner coil, the outer end of the coil spring and the coil plate is connected through the coil wherein a line connecting the power supply line, the controller is mounted on the coil plate, alert means connected to the controller.

[0007] 上述装置的使用方法为:通过驱动电机带动蜗轮、蜗杆传动,从而引起发条线圈的转动,发条线圈形状发生变化,使得线圈的谐振频率在一定范围发生变化,当调节到发射端线圈谐振频率和接收端线圈谐振频率达到一致时,发射端通过LED、数码管或声音进行提示;在需要调节输出功率时,也可以通过改变线圈的谐振频率来得到实现。 [0007] The method of using the apparatus described above is as follows: driven by a drive motor worm, worm gear, causing rotation of the coil spring, a coil spring shape changes, so that the resonance frequency of the coil is changed in a certain range, when adjusted to the transmitting end when the resonance frequency of the coil and the receiver coil resonant frequency of the same, through the LED transmitter, or a digital voice prompt; when necessary to adjust the output power can also be achieved by changing the resonance frequency of the coil.

[0008] 所述盖帽通过粘连方式和发条线圈内圈相连。 [0008] The blocking cap is connected by way of the coil spring and the inner ring.

[0009] 所述发条线圈外圈通过线圈底板上的固定销固定,并与线圈连线的其中一条电源线连接。 The [0009] outer coil winding on the coil by a fixing pin fixed to the base plate, and wherein a connection of the coil connected to the power supply line.

[0010] 所述蜗轮、蜗杆传动均带有自锁功能。 [0010] The worm and worm gear with both self-locking feature.

[0011] 所述所述发条线圈是由条状、实心圆、空心圆或扁平状导线构成的螺旋形状线圈,其螺旋状的绕组匝数为4-50匝,内径为1-lOOmm,外径为50-1000mm。 [0011] the coil spring is a strip, solid round, hollow round or flat wire coil formed of a spiral shape, which is 4-50 spiral turns of winding turns, an inner diameter of 1-lOOmm, outer diameter 50-1000mm is.

[0012] 本发明通过控制电机来实现线圈固有谐振频率的变化,使接收与发送线圈谐振频率一致,当谐振频率达到一致时,系统通过LED、数码管或者声音等进行提示,从而无线传输效率得到显著提高。 [0012] The present invention is achieved by controlling the motor changes the natural resonant frequency of the coil, the reception and transmission coil resonance same frequency, when the resonant frequency of the same, the system prompts through the LED, digital or sound, etc., thereby transmission efficiency obtained Significantly increased. 通过调节线圈的谐振频率可以避免因为生产工艺问题、外部干扰、或者不同厂家的设备等造成的共振频率差异问题,使得的无线充电效率降低问题得到一个很好的解决方案。 Reducing the resonant frequency by adjusting the discrepancies can be avoided because the resonant frequency of the coil production process issues, external interference, or the like caused by equipment of different manufacturers, so that the charging efficiency of the radio obtained a good solution. 且本结构调节方便、快捷,调节范围精度高。 This structure and easy adjustment, fast, high precision adjustment range.

附图说明 BRIEF DESCRIPTION

[0013] 图1为本发明的结构示意图。 [0013] FIG. 1 is a schematic structural diagram of the present invention.

[0014] 图2为本发明位于无线充电接收端时的调节流程图。 [0014] FIG 2 is located in the radio receiving side adjust a charging flow chart of the present invention.

[0015] 图3为本发明位于无线充电发射端时的调节流程图。 [0015] FIG. 3 is located in the radio transmitter adjusting a charging time of a flowchart of the present invention.

具体实施方式 Detailed ways

[0016] 下面结合所有附图对本发明作进一步说明,本发明的较佳实施例为: [0016] below with reference to the drawings of the present invention will be further described, the preferred embodiment of the present invention is:

[0017] 实施例1本装置位于无线充电接收端时: When the [0017] embodiment of a device located in a wireless charging receiver side:

[0018] 参见附图1和附图2,本实施例所述的无线充电线圈装置包括它包括有步进电机 The wireless charging coil means [0018] Referring to Figures 1 and 2, the embodiment of the present embodiment includes a stepping motor comprising

1、蜗轮2、蜗杆3、发条线圈4、线圈底板5、电机驱动线6、提醒装置7、控制器8,线圈连线9,其中,步进电机I可采用直流电机或其它电机进行替代,本实例例选择步进电机,通过控制脉冲个数来控制角位移量,从而达到准确定位转动角度的目的。 1, worm wheel 2, the worm 3, the coil spring 4, the coil plate 5, a motor 6 driving line, prompting device 7, a controller 8, the coil wires 9, wherein the stepping motor can be I DC motor or other alternative , examples of the present embodiment selection stepper motor, the angular displacement is controlled by controlling the number of pulses, so as to achieve accurate positioning of the angle of rotation. 步进电机I安装在线圈底板5下端,线圈底板5可以根据实际需要制成方形,圆形等形状,其制造材料包括高频铁氧体、铝板等屏蔽材料等。 I stepping motor 5 is mounted on the lower end of the coil plate, the coil base plate 5 can be made according to actual needs square, or circular, which includes a high frequency ferrite material manufacture, aluminum and other shielding material. 线圈底板5主要起到隔离与屏蔽作用,避免线圈和底板其它设备相互干扰,或者对外部环境造成影响。 Coil base plate 5 mainly plays the role of isolated and shielded, the coil and the bottom plate to avoid mutual interference to other equipment, or impact on the external environment. 而步进电机I的输出轴通过联轴器与蜗杆连接,蜗杆传动相当于螺旋传动,为多齿啮合传动,传动平稳、噪音很小,而且传动具有自锁性,其反向自锁性可起避免发条线圈由于张力而导致反向转动,甚至导致电机的反转。 I stepper motor output shaft and the worm is connected via a coupling, the equivalent of a worm drive screw drive, gear transmission multidentate, smooth transmission, noise is small, and having a self-locking gear, the reverse may be self-locking Since the tension coil spring avoids reverse rotation result, even lead to reversal of the motor. 发条线圈4可以由条状、实心圆、空心圆、扁平状、编织带等组成螺旋形状,并且螺旋部分的绕组的匝数根据需要可以从4-50西,内径可以根据需要从1-1OOmm以上,内径可以根据需要从50-1000mm以上。 4 may be a coil spring, a flat strip, solid circles, open circles, etc. braid a spiral shape, and the coil portion of the winding turns needed from west 4-50, the inner diameter may be required from 1-1OOmm above, the inner diameter may be required from the above 50-1000mm. 发条线圈4的内圈和外圈外端部通过线圈连线分别连接,其中线圈外端通过底板固定销固定,发条线圈4内圈和蜗轮2的轴杆之间通过铁氧体盖帽相连接。 Inner and an outer coil spring ends of the loop coil 4 is connected by wires, respectively, wherein the coil outer end is fixed by the fixing pin between the bottom plate, the coil spring 4 and the inner ring 2 by the worm wheel shaft with a ferrite cap connection. 盖帽可以采用塑料、尚频铁氧体等非金属材料制作。 Plastic caps may be employed, yet the frequency of non-metallic materials such as ferrite. 控制器8主要包括整流电路和稳压电路、电机的驱动、无线通信模块等。 The controller 8 includes a rectifier circuit and a voltage regulator circuit, the driving motor, a wireless communication module. 整流电路和稳压电路对接收线圈接收到的电流进行整流和稳压等,电机驱动主要控制电机的转动,接收端无线通信模块负责发射端的无线通信。 A rectifier circuit and the regulator circuit receiving coil and rectifying the current regulators and the like, the main drive motor control rotation of the motor, the wireless communication module is responsible for receiving a wireless communication transmitting end.

[0019] 其调节流程为: [0019] which regulates the flow is:

[0020] 一、开始无线充电,接收端控制器测试当前的接收电量的电流和电压; [0020] First, the wireless charging begins, the receiver controller test current and voltage of the current reception power;

[0021] 二、接收端控制器驱动电机调节线圈; [0021] Second, the controller drives the motor to adjust the receiving end of the coil;

[0022] 三、接收端控制器将调节情况无线反馈给发射端控制器,发射端控制器在显示板上声光提示调节情况; [0022] Third, the controller will adjust the receiving end is fed back to the radio control transmitter, the transmitter controller of the display panel sound and light tips reconciliations;

[0023] 四、接收端控制器比较接收电量的电流和电压,并记录对应的调节角度,比较是否达到最大功率或者所需功率? [0023] Fourth, the controller receiving terminal compares the received power of the current and voltage, and adjust the angle corresponding to the record, whether the comparison reaches a maximum power or a desired power?

[0024] 五、当达到最大功率或者所需功率时,接收端控制器停止调节线圈; [0024] Fifth, when the required power or the maximum power, the controller stops adjustment coil receiving end;

[0025] 六、接收端控制器将调节完毕信号无线反馈给发射端控制器,发射端控制器在显示板上声光提示调节完毕; [0025] Sixth, the receiving end wireless controller adjustment completion signal back to the transmitter controller, a transmitter controller displays light tips sound board has been adjusted;

[0026] 七、无线充电继续。 [0026] VII wireless charging continues.

[0027] 实施例2本装置位于无线充电发射端时: [0027] Example transmitting end is in wireless charging apparatus 2:

[0028] 参见附图1和附图3,本实施例2与实施例1所不同的是:控制器8主要包括线圈的高频电源输出模块、电机的驱动、无线通信模块和显示面板的驱动线路,控制器为了避免干扰可以放置在底板之下。 [0028] Referring to Figures 1 and 3, the present embodiment 2 in Example 1 except that: the main controller 8 includes a drive coil is high-frequency power output modules, the driving motor, the wireless communication module and a display panel line, in order to avoid interference controller may be placed under the floor. 高频电源输出模块输出高频交变电流分别通过线圈连线连接线圈4的外圈和内圈;电机驱动主要控制电机的转动;电机的转动带动涡轮、蜗杆的转动并导致线圈结构的变化;发射端无线通信模块负责和接收端的无线模块进行无线信号通信;显示面板的驱动线路主要为了显示面板的LED、数码管和蜂鸣器等的驱动电路。 High-frequency power output module outputs the high frequency alternating current through the coil wires are connected to the coil 4 of the outer and inner rings; main motor drive control of the motor rotation; rotation of the motor driven turbine, the rotation of the worm and resulting in a change of the coil structure; the wireless communication module is responsible transmitting end and the receiving end of the wireless module performs wireless communication signal; main display panel driving circuit for a display panel LED, the buzzer and the LED driving circuit. 显示面板通过排线与控制器连接,主要为了通过声光方式提示用户无线充电的状态、包括目前无线模块通信情况,充电是否正常、是否达到最佳充电效率等提示情况。 The display panel is connected via cable to the controller, mainly to prompt the user by way of sound and light wireless charging state, including the current wireless communication module, the charging is normal, the charging efficiency is the best situation and other tips.

[0029] 本实施例的调节流程为: [0029] The flow regulator of the present embodiment is:

[0030] 一、开始无线充电,发射端控制器驱动电机调节线圈; [0030] First, the wireless charging begins, the controller drives the motor to adjust the transmitter coil;

[0031] 二、接收端控制器测试当前的接收电量的电流和电压; [0031] Second, the test controller receiving terminal current and voltage of the current reception power;

[0032] 三、接收端控制器将测试的接收电量的电流和电压通过无线反馈给发射端控制器; [0032] Third, the received power controller receiving end of the test current and voltage feedback to the transmitting end via a wireless controller;

[0033] 四、发射端控制器比较接收电量的电流和电压,并记录对应的调节角度,比较是否达到最大功率或者所需功率; [0033] Fourth, the controller compares the received transmitter power of the current and voltage, and to adjust the angle corresponding to the record, whether the comparison reaches a maximum power or a desired power;

[0034] 五、如果发射端控制器输出交变电源频率可以调节,可以通过调节电源频率达到更加高的输出效率,发射端控制器输出交变电源频率进行调节; [0034] Fifth, if the transmitter power controller output alternating frequency can be adjusted, it is possible to achieve even higher efficiency by adjusting the output power frequency, the output of the transmitter controller to adjust the frequency of the alternating power supply;

[0035] 六、接收端控制器测试当前的接收电量的电流和电压; [0035] Sixth, the receiving side controller test current and voltage of the current reception power;

[0036] 七、接收端控制器将测试的接收电量的电流和电压通过无线反馈给发射端控制器; [0036] VII, the controller receives the power receiving end of the test current and voltage feedback to the transmitting end via a wireless controller;

[0037] 八、发射端控制器比较接收电量的电流和电压,并记录对应的调节角度,比较是否达到最大功率或者所需功率; [0037] VIII, the controller compares the received transmitter power of the current and voltage, and to adjust the angle corresponding to the record, whether the comparison reaches a maximum power or a desired power;

[0038] 九、如果达到最大功率或者所需功率,发射端控制器将调节完毕信号无线反馈给接收端控制器,发射端控制器在显示板上声光提示调节完毕;并继续充电。 [0038] IX maximum power is reached or if the required power, the transmitter controller has been adjusted feedback signal wirelessly to the receiver controller, transmitter controller displays light tips sound board has been adjusted; and continue charging.

Claims (5)

1.一种可调节的无线充电线圈,其特征在于:它包括有步进电机(I)、蜗轮(2)、蜗杆(3)、发条线圈(4)、线圈底板(5)、电机驱动线(6)、提醒装置(7)、控制器(8)和线圈连线(9),其中,发条线圈(4)采用导电材料制成螺旋发条状;步进电机(I)安装在线圈底板(5)下端,步进电机由控制器(8)的电机驱动线(6)连接驱动,步进电机(I)的输出轴通过联轴器与蜗杆(3)连接,蜗杆(3)与蜗轮(2)啮合,蜗轮(2)的轴杆穿过线圈底板(5)通过盖帽与安装在线圈底板(5)上的发条线圈(4)内圈连接,发条线圈(4)外端穿过线圈底板(5)与线圈连线(9)的其中一条电源线连接,控制器(8)安装在线圈底板(5)上,提醒装置(7)连接在控制器(8)上;所述发条线圈(4)是由条状、实心圆、空心圆或扁平状导线构成的螺旋形状线圈,其螺旋状的绕组匝数为4-50匝,内径为1-lOOmm,外径为50-1000mm。 1. An adjustable wireless charging coil, characterized in that: it comprises a stepper motor (the I), worm gear (2), a worm (3), the coil spring (4), a coil plate (5), a motor drive line (6), reminding means (7), the controller (8) and the coil connections (9), wherein the coil spring (4) made of a conductive material strip coil; stepper motor (I) installed online ring plate (5) lower, driven by a stepper motor connected to the controller (8) of the motor drive line (6), an output shaft of the stepping motor (I) is connected through a coupling with the worm (3), the worm (3) meshing with the worm wheel (2), worm gear (2) of the shaft through the coil base (5) by the coil spring cap mounted on the coil plate (5) (4) connected to the inner ring, the coil spring (4) through the coil end of the base plate (5) connecting the coil (9), wherein a power supply line connected to the controller (8) is mounted on the coil plate (5), reminding means (7) connected to the controller (8); said coil spring (4) is a helical coil formed of a strip-like shape, solid round, hollow round or flat wire, its winding turns of the helical turns of 4-50, an inner diameter of 1-lOOmm, outer diameter of 50-1000mm.
2.根据权利要求1所述的一种可调节的无线充电线圈,其特征在于:所述盖帽通过粘连方式和发条线圈(4)内圈相连。 1 2. The one of the wireless charging coil adjustable claims, characterized in that: said cap is connected to the inner ring and by way of blocking coil spring (4).
3.根据权利要求1所述的一种可调节的无线充电线圈,其特征在于:所述发条线圈(4)外圈通过线圈底板(5)上的固定销固定,并与线圈连线(9)的其中一条电源线连接。 1 according to one of said adjustable wireless charging coil claim, wherein: said coil spring (4) by the outer coil fixing pin fixed on the base plate (5), and connecting the coil ( 9), wherein a power cable.
4.根据权利要求1所述的一种可调节的无线充电线圈,其特征在于:所述蜗轮(2)、蜗杆(3)传动均带有自锁功能。 1 according to one of the wireless charging coil adjustable claims, characterized in that: the worm wheel (2), a worm (3) are drive with self-locking function.
5.—种可调节的无线充电线圈的使用方法,其特征在于:通过驱动电机带动蜗轮、蜗杆传动,从而引起发条线圈的转动,发条线圈形状发生变化,使得线圈的谐振频率在一定范围发生变化,当调节到发射端线圈谐振频率和接收端线圈谐振频率达到一致时,发射端通过LED、数码管或声音进行提示;在需要调节输出功率时,通过改变线圈的谐振频率来得到实现。 5.- species adjustable use of wireless charging coil, comprising: a drive motor driven by a worm, worm gear, causing rotation of the coil spring, a coil spring shape changes, so that the resonance frequency of the coil in a certain range changes, when adjusted to the transmitting end of the coil resonant frequency and the receiver coil resonant frequency of the same, the transmitting end the LED, digits or voice prompt by; when necessary to adjust the output power to be achieved by the resonance frequency changes of the coil.
CN201310158325.8A 2013-05-02 2013-05-02 Adjustable wireless charging coil and application method thereof CN103248092B (en)

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CN103730925B (en) * 2013-12-17 2016-02-03 昆山欣海韵贸易有限公司 A coil number of turns of the wireless charger may be adjusted
WO2016026095A1 (en) * 2014-08-20 2016-02-25 黄智� Thin high-efficiency wireless charging coil and wireless charging system thereof
CN104752046B (en) * 2015-04-21 2017-03-01 浙江东尼电子股份有限公司 A radio reception coil charger
CN106130196B (en) * 2016-08-23 2019-04-26 李志忠 Wireless charging method, apparatus and system
CN106785459A (en) * 2016-12-15 2017-05-31 云南科威液态金属谷研发有限公司 Coil used for wireless charging device antenna

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