WO2022104911A1 - 电子设备及无线充电系统 - Google Patents

电子设备及无线充电系统 Download PDF

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Publication number
WO2022104911A1
WO2022104911A1 PCT/CN2020/133089 CN2020133089W WO2022104911A1 WO 2022104911 A1 WO2022104911 A1 WO 2022104911A1 CN 2020133089 W CN2020133089 W CN 2020133089W WO 2022104911 A1 WO2022104911 A1 WO 2022104911A1
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WIPO (PCT)
Prior art keywords
annular
magnetic steel
annular magnetic
steel
assembly
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Application number
PCT/CN2020/133089
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English (en)
French (fr)
Inventor
邹习习
周凯琦
钟文
周卓帆
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声精密制造科技(常州)有限公司
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Publication of WO2022104911A1 publication Critical patent/WO2022104911A1/zh

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • One of the objectives of the present application is to provide an electronic device, which can effectively improve the magnetic attraction force and the electromagnetic shielding effect of the first annular positioning assembly.
  • the first annular positioning assembly is formed by splicing several sub-positioning assemblies end to end.
  • the induction coil is formed on the support member by sticking or a laser process.
  • the wireless charging device further includes a second annular positioning assembly surrounding the outer circumference of the transmitting coil, the second annular positioning assembly including a second annular soft magnetic base plate and a second annular soft magnetic
  • the polarity of the steel facing the side of the second annular soft magnetic base plate is opposite to the polarity of the first annular magnetic steel facing the side of the first annular soft magnetic base plate, and the fifth annular magnetic steel faces the first annular soft magnetic base plate.
  • the polarity of one side of the second annular soft magnetic base plate is opposite
  • the radial width of the fourth annular magnetic steel is the same as the radial width of the first annular magnetic steel, and the radial width of the fifth annular magnetic steel is the same as that of the third annular magnetic steel.
  • the radial width is the same.
  • the embodiments of the present application are arranged and charged on the first annular soft magnetic base plate by setting the first annular soft magnetic base plate and the first annular magnetic steel, the second annular magnetic steel and the third annular magnetic steel on the first annular soft magnetic base plate.
  • the magnetic direction improves the magnetic attraction force of the first annular positioning assembly, which facilitates the center alignment between the induction coil and the transmitting coil acting with the induction coil, thereby improving the charging efficiency, and the first annular positioning assembly can form a better shielding effect, The mutual electromagnetic interference between the electronic components inside and outside the first annular positioning assembly is reduced.
  • FIG. 2 is a schematic structural diagram of an induction coil assembly according to an embodiment of the present application.
  • FIG. 3 is a schematic view of the section A-A in FIG. 2 .
  • FIG. 4 is a schematic structural diagram of a transmitting coil assembly according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram illustrating a comparison between the magnetic attraction force of the first annular positioning assembly proposed in the embodiment of the present application and the existing solution.
  • FIG. 8 is a schematic diagram illustrating a comparison between the average magnetic flux density outside the first annular positioning component proposed in the embodiment of the present application and the existing solution.
  • FIG. 9 is a schematic diagram illustrating the variation of the magnetic attraction force of the first annular positioning assembly with the thickness ratio of the first annular magnetic steel assembly and the first annular positioning assembly according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram showing the variation of the shielding effect of the first annular positioning assembly according to the thickness ratio of the first annular magnetic steel assembly and the first annular positioning assembly according to the embodiment of the application.
  • an implementation of the present application proposes a wireless charging system 100 , including an electronic device 10 and a wireless charging device 20 , the wireless charging device 20 is used for wirelessly charging the electronic device 10 , and the electronic device 10 includes an induction coil assembly 11 .
  • the coil assembly 11 includes an induction coil 111
  • the wireless charging device 20 includes a transmit coil assembly 21 including a transmit coil 211
  • the induction coil 111 is configured to receive power from the transmit coil 211 .
  • the electronic device 10 is a mobile phone
  • the wireless charging device 20 is a mobile phone wireless charging stand.
  • the transmitting coil 211 When the mobile phone is placed on the mobile phone wireless charging stand for charging, the transmitting coil 211 generates a certain current in the induction coil 111 through electromagnetic induction based on alternating current of a certain frequency. Thereby, the energy is transferred from the transmitting end to the receiving end, and power is supplied to the mobile phone from the wireless charging stand of the mobile phone.
  • both the first annular positioning assembly 112 and the second annular positioning assembly 212 are annular.
  • the first annular positioning assembly 112 is provided with a first gap 1121 , and the first gap 1121 is used for the connection line of the induction coil 111 to extend to the outside of the first annular positioning assembly 112 .
  • the second annular positioning assembly 212 is provided with a second notch 2121 , and the second notch 2121 is used for the connecting wire of the transmitting coil 211 to extend to the outside of the second annular positioning assembly 212 .
  • the electronic device 10 includes a support member 12 , and the induction coil assembly 11 is provided on the support member 12 .
  • the support 12 can be a back shell of an electronic device.
  • the induction coil 111 is formed on the support member 12 by sticking or laser processing.
  • the first annular positioning assembly 112 includes a first annular soft magnetic base plate 113 and a first annular magnetic steel assembly 114 stacked with the first annular soft magnetic base plate 113 .
  • the assembly 114 includes a first annular magnetic steel 1141, a second annular magnetic steel 1142 and a third annular magnetic steel 1143.
  • the first annular magnetic steel 1141, the second annular magnetic steel 1142 and the third annular magnetic steel 1143 extend from the inside to the radial direction.
  • first annular magnetic steel 1141 and the third annular magnetic steel 1143 are magnetized along the axial direction X, and the polarity of the first annular magnetic steel 1141 toward the first annular soft magnetic base plate 113 is the same as the polarity of the third annular magnetic steel 1141.
  • the polarity of the annular magnetic steel 1143 toward the side of the first annular soft magnetic base plate 113 is opposite, and the second annular magnetic steel 1142 is magnetized along the radial direction Y.
  • the side of the first annular magnetic steel 1141 facing the first annular soft magnetic base plate 113 is at the S level
  • the side of the first annular magnetic steel 1141 facing away from the first annular soft magnetic base plate 113 is an N-pole
  • the third annular The side of the magnetic steel 1143 facing the first annular soft magnetic base plate 113 is the N pole
  • the side of the third annular magnetic steel 1143 facing away from the first annular soft magnetic base plate 113 is the S pole
  • the second annular magnetic steel 1142 is facing the first annular
  • One side of the magnetic steel 1141 is the N pole
  • the side of the second annular magnetic steel 1142 facing the third annular magnetic steel 1143 is the S pole.
  • FIG. 7 shows a schematic comparison of the magnetic attraction force of the first annular positioning assembly 112 proposed in the embodiment of the present application and the magnetic attraction force of the first annular positioning assembly in the prior art.
  • FIG. 8 shows the first annular positioning assembly proposed in the embodiment of the present application. A comparison of the average magnetic flux density in the outer test area of the positioning assembly 112 and the average magnetic flux density in the outer test area of the first annular positioning assembly in the prior art is shown. It can be seen from FIG. 7 that the magnetic attraction force of the first annular positioning assembly 112 proposed in the embodiment of the present application is improved by 32.0% compared to the existing solution. It can be seen from FIG. 8 that the shielding effect of the first annular positioning assembly 112 proposed in the embodiment of the present application is improved by 85.0% compared to the existing solution.
  • the first annular soft magnetic base plate 113 is made of metal soft magnetic material or ferrite soft magnetic material.
  • the optional metal soft magnetic materials include electromagnetic pure iron, silicon steel sheet, iron-nickel alloy and iron-aluminum alloy.
  • FIG. 9 shows the variation of the magnetic attraction force of the first annular positioning component 112 with the thickness ratio of the first annular magnetic steel component 114 to the first annular positioning component 112
  • FIG. 10 shows the shielding effect of the first annular positioning component 112 It is shown with the change of the thickness ratio of the first annular magnetic steel component 114 and the first annular positioning component 112 .
  • the first annular positioning assembly 112 is formed by splicing several sub-positioning assemblies 112a end to end.
  • the second annular positioning assembly 212 includes a second annular soft magnetic base plate 213 and a second annular magnetic steel assembly 214 stacked with the second annular soft magnetic base plate 213 .
  • the second annular magnetic steel The assembly 214 includes a fourth annular magnetic steel 2141 and a fifth annular magnetic steel 2142.
  • the fourth annular magnetic steel 2141 and the fifth annular magnetic steel 2142 are arranged in turn from the inside to the outside along the radial direction Y, and the fourth annular magnetic steel 2141 and The fifth annular magnetic steel 2142 is arranged at intervals; wherein, the fourth annular magnetic steel 2141 and the fifth annular magnetic steel 2142 are magnetized along the axial direction X, and the fourth annular magnetic steel 2141 faces the pole on the side of the second annular soft magnetic base plate 213
  • the polarity of the first annular magnetic steel 1141 toward the first annular soft magnetic base plate 113 is opposite
  • the polarity of the fifth annular magnetic steel 2142 toward the second annular soft magnetic base plate 213 is opposite to the polarity of the third annular magnetic steel 1142 toward the side of the second annular soft magnetic base plate 213.
  • the polarities on the side of the first annular soft magnetic base plate 113 are opposite.
  • the side of the fourth annular magnetic steel 2141 facing the second annular soft magnetic base plate 213 is the N pole
  • the side of the fourth annular magnetic steel 2141 facing away from the second annular soft magnetic base plate 213 is the S pole
  • the fifth annular magnetic steel 2141 is the S pole
  • the side of the magnetic steel 2142 facing the second annular soft magnetic base plate 213 is the S pole
  • the side of the fifth annular magnetic steel 2142 facing away from the second annular soft magnetic base plate 213 is the N pole.
  • the second annular soft magnetic base plate 213 is made of metal soft magnetic material or ferrite soft magnetic material.
  • the optional metal soft magnetic materials include electromagnetic pure iron, silicon steel sheet, iron-nickel alloy and iron-aluminum alloy.
  • the second annular positioning assembly 212 is formed by splicing several sub-positioning assemblies 212a end to end.
  • the fourth ring magnet 2141 is opposite to the first ring magnet 1141
  • the fifth ring magnet 2142 is opposite to the third ring magnet 1143 .
  • the radial width E1 of the fourth annular magnetic steel 2141 is the same as the radial width F1 of the first annular magnetic steel 1141, and the radial width E2 of the fifth annular magnetic steel 2142 is the same as that of the third annular magnetic steel 1143.
  • the radial width F2 is consistent.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种电子设备(10)及无线充电系统(100),其中,电子设备(10)包括支撑件(12)和设于支撑件(12)的感应线圈组件(11),感应线圈组件(11)包括感应线圈(111)和环绕于感应线圈(111)外周的第一环形定位组件(112),第一环形定位组件(112)包括第一环形软磁底板(113)和与第一环形软磁底板(113)层叠的第一环形磁钢组件(114),第一环形磁钢组件(114)包括第一环形磁钢(1141)、第二环形磁钢(1142)及第三环形磁钢(1143),第一环形磁钢(1141)、第二环形磁钢(1142)及第三环形磁钢(1143)沿径向由里向外依次排布;其中,第一环形磁钢(1141)和第三环形磁钢(1143)沿轴向充磁,且第一环形磁钢(1141)朝向第一环形软磁底板(113)一侧的极性与第三环形磁钢(1143)朝向第一环形软磁底板(113)一侧的极性相反,第二环形磁钢(1142)沿径向充磁。能够有效提升第一环形定位组件(112)的磁吸力和电磁屏蔽效果。

Description

电子设备及无线充电系统 技术领域
本申请涉及无线充电领域,尤其涉及电子设备及无线充电系统。
背景技术
现有的无线充电系统通过在电子设备设置第一磁性定位组件,在无线充电设备设置第二磁性定位组件,电子设备和无线充电设备之间通过第一磁性定位组件和第二磁性定位组件的磁吸实现发射线圈与感应线圈之间的自动对准,以提高充电效率,并通过磁性定位组件实现电磁屏蔽,避免磁性定位组件内外侧的电子部件受到电磁影响。然而,现有电子设备的第一磁性定位组件由于结构限制,形成的磁吸力小,电磁屏蔽效果不佳。
因此,有必要提出一种电子设备来解决上述问题。
技术问题
现有电子设备的第一磁性定位组件由于结构限制,磁吸力小,不利于发射线圈与感应线圈之间的自动对准且电磁屏蔽效果不佳。
技术解决方案
本申请的目的之一在于提出一种电子设备,其可以有效提升第一环形定位组件的磁吸力和电磁屏蔽效果。
本申请的目的之一采用如下技术方案实现:一种电子设备,包括支撑件和设于所述支撑件的感应线圈组件,所述感应线圈组件包括感应线圈和环绕于所述感应线圈外周的第一环形定位组件,所述第一环形定位组件包括第一环形软磁底板和与所述第一环形软磁底板层叠的第一环形磁钢组件,所述第一环形磁钢组件包括第一环形磁钢、第二环形磁钢及第三环形磁钢,所述第一环形磁钢、第二环形磁钢及第三环形磁钢沿径向由里向外依次排布;其中,所述第一环形磁钢和第三环形磁钢沿轴向充磁,且所述第一环形磁钢朝向所述第一环形软磁底板一侧的极性与所述第三环形磁钢朝向所述第一环形软磁底板一侧的极性相反,所述第二环形磁钢沿径向充磁。
作为一种改进方式,所述第一环形定位组件的厚度为t m,所述第一环形磁钢组件的厚度为t p,其中t p/t m=0.35-0.75。
作为一种改进方式,所述第二环形磁钢的一端与所述第一环形磁钢抵接,所述第二环形磁钢的另一端与所述第三环形磁钢抵接。
作为一种改进方式,所述第一环形定位组件由若干个子定位组件首尾拼接形成。
作为一种改进方式,所述感应线圈组件还包括磁隔离层,所述磁隔离层贴附于所述支撑件并覆盖所述感应线圈和所述第一环形定位组件。
作为一种改进方式,所述磁隔离层为纳米晶层或软磁层。
作为一种改进方式,所述感应线圈通过粘贴或者激光镭射工艺成型于所述支撑件。
本申请的目的之二在于提出了一种无线充电系统,包括无线充电设备和上述的电子设备,所述无线充电设备包括发射线圈组件,所述发射线圈组件包括发射线圈,其中,所述感应线圈被配置为从所述发射线圈接收功率。
作为一种改进方式,所述无线充电设备还包括环绕于所述发射线圈外周的第二环形定位组件,所述第二环形定位组件包括第二环形软磁底板和与所述第二环形软磁底板层叠的第二环形磁钢组件,所述第二环形磁钢组件包括第四环形磁钢和第五环形磁钢,所述第四环形磁钢和第五环形磁钢沿径向由里向外依次排布,且所述第四环形磁钢和第五环形磁钢间隔设置;其中,所述第四环形磁钢和第五环形磁钢沿轴向充磁,且所述第四环形磁钢朝向所述第二环形软磁底板一侧的极性与所述第一环形磁钢朝向所述第一环形软磁底板一侧的极性相反,所述第五环形磁钢朝向所述第二环形软磁底板一侧的极性与所述第三环形磁钢朝向所述第一环形软磁底板一侧的极性相反。
作为一种改进方式,所述第四环形磁钢的径向宽度与所述第一环形磁钢的径向宽度一致,所述第五环形磁钢的径向宽度与所述第三环形磁钢的径向宽度一致。
有益效果
本申请实施方式相对于现有技术而言,通过设置第一环形软磁底板以及第一环形磁钢、第二环形磁钢和第三环形磁钢在第一环形软磁底板上排布和充磁方向,提升了第一环形定位组件的磁吸力,便于感应线圈和与感应线圈作用的发射线圈之间的中心对齐,从而提高充电效率,而且第一环形定位组件可以形成较好的屏蔽效果,减小了第一环形定位组件内外侧的电子部件之间相互的电磁干扰。
附图说明
图1为本申请实施例提出的无线充电系统的示意图。
图2为本申请实施例提出的感应线圈组件的结构示意图。
图3为图2中A-A截面示意图。
图4为本申请实施例提出的发射线圈组件的结构示意图。
图5为图4中B-B截面示意图。
图6为感应线圈组件与发射线圈组件的配合示意图。
图7为本申请实施例提出的第一环形定位组件的磁吸力与现有方案的对比示意图。
图8为本申请实施例提出的第一环形定位组件外侧的平均磁通密度与现有方案的对比示意图。
图9为本申请实施例提出的第一环形定位组件的磁吸力随第一环形磁钢组件与第一环形定位组件的厚度比的变化示意图。
图10为本申请实施例提出的第一环形定位组件的屏蔽效果随第一环形磁钢组件与第一环形定位组件的厚度比的变化示意图。
本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
如图1所示,本申请实施提出一种无线充电系统100,包括电子设备10和无线充电设备20,无线充电设备20用于给电子设备10无线充电,电子设备10包括感应线圈组件11,感应线圈组件11包括感应线圈111,无线充电设备20包括发射线圈组件21,发射线圈组件21包括发射线圈211,感应线圈111被配置为从发射线圈211接收功率。
例如,电子设备10为手机,无线充电设备20为手机无线充电座,手机放置在手机无线充电座上充电时,发射线圈211基于一定频率的交流电通过电磁感应在感应线圈111中产生一定的电流,从而将能量从发射端转移到接收端,实现从手机无线充电座向手机进行供电。
可选地,感应线圈组件11还包括环绕于感应线圈111外周的第一环形定位组件112,发射线圈组件21还包括环绕于发射线圈211外周的第二环形定位组件212。第一环形定位组件112和第二环形定位组件212用于电子设备10和无线充电设备20的磁吸定位,使得电子设备10和无线充电设备20之间通过磁吸力进行对准,并且在一定区域内提出回复力自动校准中心位置,保证感应线圈111和发射线圈211之间中心对齐,以提高充电效率,此外,第一环形定位组件12和第二环形定位组件212还用于屏蔽其他方向的磁场以保护其余电子部件不受电磁干扰。
可选地,第一环形定位组件112和第二环形定位组件212均呈圆环状。
可选地,第一环形定位组件112设有第一缺口1121,第一缺口1121用于感应线圈111的连接线延伸到第一环形定位组件112的外部。第二环形定位组件212设有第二缺口2121,第二缺口2121用于发射线圈211的连接线延伸到第二环形定位组件212的外部。
可选地,电子设备10包括支撑件12,感应线圈组件11设于支撑件12。该支撑件12可以为电子设备的背壳。
可选地,感应线圈111通过粘贴或者激光镭射工艺成型于支撑件12。
如图2-10所示,可选地,第一环形定位组件112包括第一环形软磁底板113和与第一环形软磁底板113层叠的第一环形磁钢组件114,第一环形磁钢组件114包括第一环形磁钢1141、第二环形磁钢1142及第三环形磁钢1143,第一环形磁钢1141、第二环形磁钢1142及第三环形磁钢1143沿径向由里向外依次排布;其中,第一环形磁钢1141和第三环形磁钢1143沿轴向X充磁,且第一环形磁钢1141朝向第一环形软磁底板113一侧的极性与第三环形磁钢1143朝向第一环形软磁底板113一侧的极性相反,第二环形磁钢1142沿径向Y充磁。
示例性地,第一环形磁钢1141朝向第一环形软磁底板113的一侧为S级,第一环形磁钢1141背对第一环形软磁底板113的一侧为N极,第三环形磁钢1143朝向第一环形软磁底板113的一侧为N极,第三环形磁钢1143背对第一环形软磁底板113的一侧为S极,第二环形磁钢1142朝向第一环形磁钢1141的一侧为N极,第二环形磁钢1142朝向第三环形磁钢1143的一侧为S极。
图7展示的本申请实施例提出的第一环形定位组件112的磁吸力与现有方案的第一环形定位组件的磁吸力的对比示意,图8展示的是本申请实施例提出的第一环形定位组件112的外侧测试区域内的平均磁通密度和现有方案的第一环形定位组件的外侧测试区域内的平均磁通密度的对比示意。由图7可以看出,本申请实施例提出的第一环形定位组件112的磁吸力相对于现有方案有32.0%的提升。由图8可以看出,本申请实施例提出的第一环形定位组件112的屏蔽效果相对于现有方案有85.0%的提升。
因而,通过设置第一环形软磁底板113以及第一环形磁钢1141、第二环形磁钢1142和第三环形磁钢1143在第一环形软磁底板113上排布和充磁方向,提升了第一环形定位组件112的磁吸力,便于感应线圈111和与感应线圈111作用的发射线圈211之间的中心对齐,从而提高充电效率,而且第一环形定位组件112可以形成较好的屏蔽效果,减小了第一环形定位组件112内外侧的电子部件之间相互的电磁干扰。
可选地,第一环形软磁底板113采用金属软磁材料或铁氧体软磁材料制成。可选用的金属软磁材料有电磁纯铁、硅钢片、铁镍合金和铁铝合金。
可选地,第一环形定位组件112的厚度为t m,第一环形磁钢组件114的厚度为t p,其中t p/t m=0.35-0.75。
图9展示的是第一环形定位组件112的磁吸力随第一环形磁钢组件114与第一环形定位组件112的厚度比的变化示意,图10展示的是第一环形定位组件112的屏蔽效果随第一环形磁钢组件114与第一环形定位组件112的厚度比的变化示意。图9和图10表明,第一环形软磁底板113占比越大,第一环形定位组件112的屏蔽效果越好,但磁吸力的增强效果会有一定的减弱;第一环形磁钢组件114占比越大,第一环形定位组件112的磁吸力增强效果明显,但屏蔽效果会减弱。通过将第一环形磁钢组件114与第一环形定位组件112的厚度比设定为0.35-0.75可以较好地兼顾第一环形定位组件112的磁吸力和屏蔽效果的问题。可选地,第一环形磁钢组件114与第一环形定位组件112的厚度比可以为0.5-0.7。可选地,第一环形磁钢组件114与第一环形定位组件112的厚度比可以为0.5或0.6或0.7。
可选地,第二环形磁钢1142的一端与第一环形磁钢1141抵接,第二环形磁钢1142的另一端与第三环形磁钢1143抵接。
可选地,第一环形定位组件112由若干个子定位组件112a首尾拼接形成。
可选地,感应线圈组件11还包括磁隔离层115,磁隔离层115贴附于支撑件12并覆盖感应线圈111和第一环形定位组件112。磁隔离层115采用粘贴的方式固定于支撑件12,工艺简单,提高了成品的良率,而且,该固定方式便于磁隔离层115的调整,后期可以通过调整磁隔离层115的材料来实现感应线圈自感值的调整。
可选地,磁隔离层115为纳米晶层或软磁层。可选地,软磁层采用金属软磁材料或铁氧体软磁材料制成。可选用的金属软磁材料有电磁纯铁、硅钢片、铁镍合金和铁铝合金。
如图2-6所示,可选地,第二环形定位组件212包括第二环形软磁底板213和与第二环形软磁底板213层叠的第二环形磁钢组件214,第二环形磁钢组件214包括第四环形磁钢2141和第五环形磁钢2142,第四环形磁钢2141和第五环形磁钢2142沿径向Y由里向外依次排布,且第四环形磁钢2141和第五环形磁钢2142间隔设置;其中,第四环形磁钢2141和第五环形磁钢2142沿轴向X充磁,且第四环形磁钢2141朝向第二环形软磁底板213一侧的极性与第一环形磁钢1141朝向第一环形软磁底板113一侧的极性相反,第五环形磁钢2142朝向第二环形软磁底板213一侧的极性与第三环形磁钢1142朝向第一环形软磁底板113一侧的极性相反。
示例性地,第四环形磁钢2141朝向第二环形软磁底板213的一侧为N极,第四环形磁钢2141背对第二环形软磁底板213的一侧为S极,第五环形磁钢2142朝向第二环形软磁底板213的一侧为S极,第五环形磁钢2142背对第二环形软磁底板213的一侧为N极。
可选地,第二环形软磁底板213采用金属软磁材料或铁氧体软磁材料制成。可选用的金属软磁材料有电磁纯铁、硅钢片、铁镍合金和铁铝合金。
可选地,第二环形定位组件212由若干个子定位组件212a首尾拼接形成。
当感应线圈组件11与发射线圈组件21对准进行充电时,第四环形磁钢2141与第一环形磁钢1141相对,第五环形磁钢2142与第三环形磁钢1143相对。
可选地,第四环形磁钢2141的径向宽度E 1与第一环形磁钢1141的径向宽度F 1一致,第五环形磁钢2142的径向宽度E 2与第三环形磁钢1143的径向宽度F 2一致。
以上所述的仅是本申请的实施方式,在此应当指出,对于本领域的普通技术人员来说,在不脱离本申请创造构思的前提下,还可以做出改进,但这些均属于本申请的保护范围。

Claims (10)

  1. 一种电子设备,包括支撑件和设于所述支撑件的感应线圈组件,其特征在于,所述感应线圈组件包括感应线圈和环绕于所述感应线圈外周的第一环形定位组件,所述第一环形定位组件包括第一环形软磁底板和与所述第一环形软磁底板层叠的第一环形磁钢组件,所述第一环形磁钢组件包括第一环形磁钢、第二环形磁钢及第三环形磁钢,所述第一环形磁钢、第二环形磁钢及第三环形磁钢沿径向由里向外依次排布;
    其中,所述第一环形磁钢和第三环形磁钢沿轴向充磁,且所述第一环形磁钢朝向所述第一环形软磁底板一侧的极性与所述第三环形磁钢朝向所述第一环形软磁底板一侧的极性相反,所述第二环形磁钢沿径向充磁。
  2. 根据权利要求1所述的电子设备,其特征在于,所述第一环形定位组件的厚度为t m,所述第一环形磁钢组件的厚度为t p,其中t p/t m=0.35-0.75。
  3. 根据权利要求1所述的电子设备,其特征在于,所述第二环形磁钢的一端与所述第一环形磁钢抵接,所述第二环形磁钢的另一端与所述第三环形磁钢抵接。
  4. 根据权利要求1所述的电子设备,其特征在于,所述第一环形定位组件由若干个子定位组件首尾拼接形成。
  5. 根据权利要求1所述的电子设备,其特征在于,所述感应线圈组件还包括磁隔离层,所述磁隔离层贴附于所述支撑件并覆盖所述感应线圈和所述第一环形定位组件。
  6. 根据权利要求5所述的电子设备,其特征在于,所述磁隔离层为纳米晶层或软磁层。
  7. 根据权利要求1所述的电子设备,其特征在于,所述感应线圈通过粘贴或者激光镭射工艺成型于所述支撑件。
  8. 一种无线充电系统,其特征在于,包括无线充电设备和权利要求1至7任一项所述的电子设备,所述无线充电设备包括发射线圈组件,所述发射线圈组件包括发射线圈,其中,所述感应线圈被配置为从所述发射线圈接收功率。
  9. 根据权利要求8所述的无线充电系统,其特征在于,所述发射线圈组件还包括环绕于所述发射线圈外周的第二环形定位组件,所述第二环形定位组件包括第二环形软磁底板和与所述第二环形软磁底板层叠的第二环形磁钢组件,所述第二环形磁钢组件包括第四环形磁钢和第五环形磁钢,所述第四环形磁钢和第五环形磁钢沿径向由里向外依次排布,且所述第四环形磁钢和第五环形磁钢间隔设置;
    其中,所述第四环形磁钢和第五环形磁钢沿轴向充磁,且所述第四环形磁钢朝向所述第二环形软磁底板一侧的极性与所述第一环形磁钢朝向所述第一环形软磁底板一侧的极性相反,所述第五环形磁钢朝向所述第二环形软磁底板一侧的极性与所述第三环形磁钢朝向所述第一环形软磁底板一侧的极性相反。
  10. 根据权利要求9所述的无线充电系统,其特征在于,所述第四环形磁钢的径向宽度与所述第一环形磁钢的径向宽度一致,所述第五环形磁钢的径向宽度与所述第三环形磁钢的径向宽度一致。
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