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WO2012100431A1 - 一种无线充电装置 - Google Patents

一种无线充电装置 Download PDF

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Publication number
WO2012100431A1
WO2012100431A1 PCT/CN2011/070773 CN2011070773W WO2012100431A1 WO 2012100431 A1 WO2012100431 A1 WO 2012100431A1 CN 2011070773 W CN2011070773 W CN 2011070773W WO 2012100431 A1 WO2012100431 A1 WO 2012100431A1
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WO
WIPO (PCT)
Prior art keywords
wireless charging
charging device
electronic switch
transmitting coil
electronic
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
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PCT/CN2011/070773
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English (en)
French (fr)
Inventor
向智勇
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Individual
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Individual
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Filing date
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Priority to EP11856970.6A priority Critical patent/EP2670024B1/en
Priority to CN201180002811.XA priority patent/CN102884710B/zh
Priority to PCT/CN2011/070773 priority patent/WO2012100431A1/zh
Priority to JP2013550730A priority patent/JP5767342B2/ja
Priority to US13/519,859 priority patent/US9018899B2/en
Publication of WO2012100431A1 publication Critical patent/WO2012100431A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/90—Arrangements or methods specially adapted for charging batteries thereof

Definitions

  • the present invention relates to wireless charging, and in particular to a low cost and high efficiency wireless charging device, and is particularly suitable for electronic cigarettes.
  • the wireless charging device includes a power source, an electronic switch and a transmitting coil which are electrically connected in sequence, and the electronic switch is pulse width modulated (PWM)
  • PWM pulse width modulated
  • the controller controls its conduction or cut-off, and the transmitting coil is directly connected to the power source through the electronic switch.
  • the above-mentioned electronic switch generally adopts a high-power field effect switching tube, and the electronic switch generates a high heat due to its dynamic resistance, and must be adopted for stable operation. Large-area heat sinks increase product cost, especially for low-cost and miniaturized products.
  • the object of the present invention is to overcome the deficiencies in the prior art described above and to provide a wireless charging device. It can reduce the heat generated by the electronic switch, so that no special heat sink is needed or the area of the heat sink is greatly reduced.
  • the object of the present invention can be achieved by the following measures:
  • the wireless charging device comprises an electronic switch and a transmitting coil electrically connected to the power source in sequence, the electronic switch control end is connected to the emission control unit, and further comprises a current limiting resistor connected in series with the transmitting coil, thereby breaking the traditional thinking and increasing the limit.
  • the current resistance which limits and reduces the current through the electronic switch, is very effective in reducing the heat generation of the electronic switch, and plays a decisive role in preventing the burning of the electronic switch.
  • the current limiting resistor only has 1-5 ohm (electronic switch static resistance 0.01-0.5 ohm is small), relative to electronic switch dynamic resistance 20-100 Europe is basically negligible, so the loss power that traditional thinking is concerned about, especially with respect to receiving conduction efficiency and emission efficiency, is actually very low, and basically has no effect. In addition, there is no case of high resistance heat that is concerned about traditional thinking.
  • the object of the invention can also be achieved by the following measures:
  • the compensation capacitor is a single capacitor or a combined capacitor.
  • the electronic switch adopts a small-area heat sink, including but not limited to: the electronic switch is an in-line component that is in close contact with the heat sink or does not use a special heat sink, and preferably does not use a special heat sink: the electronic switch is a patch
  • the component has a large area on the internal circuit board corresponding to the position of the heat-generating electronic switch ( 2*2 cm2)
  • the heat sink copper replaces the special heat sink, and the cost is reduced to about 0.3 yuan.
  • the wireless charging device is an electronic cigarette wireless charging device, and further comprises an electronic cigarette jack or a sleeve matched with the transmitting coil, so that a plug-in full electromagnetic coupling structure is adopted.
  • the receiving efficiency is greatly improved, and the electronic switching current is also effectively reduced.
  • a light detecting device that is electrically connected to the emission control unit and that is inserted at the electronic cigarette jack or sleeve.
  • the transmitting coil and its corresponding jack or sleeve are one or more, and can simultaneously charge a plurality of electronic cigarettes.
  • the electronic switch includes, but is not limited to, a field effect transistor or a triode.
  • the current limiting resistor is a single resistor or a combined resistor. Dividing into two resistors can further reduce the heating of a single resistor.
  • the invention breaks through the traditional thinking to increase the current limiting resistor on the transmitting loop, and further increases the compensation capacitor.
  • the use of plug-in full electromagnetic coupling structure and insertion detection, especially for electronic cigarettes, has the following advantages over the prior art:
  • FIG. 1 is a schematic structural view of an electronic cigarette of the present invention
  • FIG. 2 is a schematic structural view of an electronic cigarette wireless charging device of the present invention
  • FIG. 3 is a schematic diagram of the wireless charging device of the present invention and its electronic cigarette power principle
  • Figure 4 is a schematic view showing the electrical structure of the electronic cigarette in Figure 3;
  • Figure 5 is a schematic diagram showing the electrical structure of the wireless charging device of Figure 3.
  • the electronic cigarette component of the present invention includes a battery 12 on the body of the cigarette, and a receiving coil of the cigarettehead portion in front of the battery 12. 11 , ie the receiving coil L2 in Figures 3 and 4.
  • the components of the electronic cigarette wireless charging device of the present invention include a circuit board 21 and a sleeve 23 a light detecting device 24 and a transmitting coil 22 for detecting whether or not the electronic cigarette is inserted, that is, the transmitting coil L1 in Figs. 3 and 5; the transmitting coil 22 is wound around the sleeve 23
  • the receiving coil 11 is located inside the transmitting coil 22 when inserted, and the axial directions of the two coils are the same.
  • the electronic cigarette circuit of the present invention comprises a battery, a heating wire R, and a receiving coil L2. And a receiving circuit and a controller of the built-in rectifying unit;
  • the electronic cigarette wireless charging device circuit of the present invention comprises an electronic switch with a transmitting control unit and a transmitting coil L1 sequentially connected to the power source; the transmitting coil L1 Used in conjunction with the receiving coil L2.
  • the radiation detecting coil L1 current can be reduced, thereby saving the heat sink, and further comprising a light detecting device 24 electrically connected to the emission control chip U1, the light detecting device 24
  • the light emitting component and the light receiving component are included. After the power is plugged in, the light emitting component is always bright. Once the light receiving component does not receive the light, the transmitting control chip U1 is activated to perform charging control.
  • the wireless charging device of the invention is especially suitable for the electronic cigarette product, meets the user's wireless charging demand, and is convenient for the user to absorb while sucking, so that the electronic cigarette can be further promoted, so that the smokers who are poisoned by the traditional tobacco can enjoy the fun of non-toxic smoking at low cost. .

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

Description

一种无线充电装置 技术领域
本发明涉及无线充电，具体涉及一种成本低且效率高的无线充电装置，尤其适用于电子烟。
背景技术
目前，无线充电装置包括依次电连接的电源、电子开关和发射线圈，电子开关由脉冲宽度调制（ PWM ）控制器控制其导通或截至，发射线圈通过电子开关直接连接电源，上述电子开关一般都采用高功率场效应开关管，由于其动态电阻造成电子开关发热量较高，为稳定工作都必须采用大面积散热片，提高产品成本，尤其不利于低成本和小型化的产品。而若 采用传统方式设计电子烟 无线充电装置，必须采用散热片，其有效散热面积 >3*3 平方厘米， 成本约 2 元人民币。进一步，当前的所有无线充电装置在电子开关关闭时发射线圈不发射且接收传导效率低，都造成一定额外的场效应开关管发热量。
技术问题
本发明的目的在于克服上述现有技术中的不足之处，提供一种 无线充电装置 ，能减少电子开关发热，从而无须专门散热片或大大减少散热片的面积。
技术解决方案
本发明的目的可以通过以下措施来达到：
这种无线充电装置，包括与电源依次电连接的电子开关和发射线圈，所述电子开关控制端连接发射控制单元，还包括与所述发射线圈串联的限流电阻，这样突破传统思维，增加限流电阻，从而限制并降低通过电子开关的电流，非常有效减少电子开关发热，对防止烧电子开关起了决定性作用，同时这种限流电阻仅有 1-5 欧（电子开关静态电阻 0.01-0.5 欧很小），相对于电子开关动态电阻 20-100 欧基本忽略不计，因此传统思维所担心的损耗功率，尤其相对于接收传导效率和发射效率实际很低，基本没有影响，另外也不存在传统思维所担心的电阻高发热的情况。
本发明的目的还可以通过以下措施来达到：
还包括与所述发射线圈并联的补偿电容，这样发射线圈在 PWM 控制下，不仅在电子开关导通的时候发射有效，另外在电子开关关闭的期间，发射线圈与补偿电容形成回路，发射仍然有效（提高发射效率），但是电子开关因为关断无电流不发热， 在相同的发射功率下（可以减少开关管占空比方），显著减少电子开关电流，从而减少电子开关发热 , 增加电路稳定性。
所述补偿电容是单体电容或组合电容。
所述电子开关采用小面积散热片，包括但不限制于：所述电子开关是贴紧散热片的直插元件或不采用专门散热片，优选不采用专门散热片：所述电子开关是贴片元件，在内部电路板对应所述发热电子开关的位置敷大面积（ 2*2 平方厘米）散热铜片替代专门散热片，成本降到约 0.3 元人民币 。
该 无线充电装置是电子烟无线充电装置，还包括与所述发射线圈配合的电子烟插孔或套筒，这样采用插入式全电磁耦合结构 , 大大提高接收效率，也有效减少电子开关电流。
还包括与发射控制单元电连接的设置在所述电子烟插孔或套筒处的电子烟插入的光检测装置。
所述发射线圈及其对应的插孔或套筒是一个或一个以上，可同时充多根电子烟。
所述电子开关包括但不限制于是场效应管或三极管。
所述限流电阻是单体电阻或组合电阻，分成二个电阻还可进一步减少单个电阻发热 。
 有益效果
本发明突破传统思维在发射回路上增加限流电阻，进一步增加补偿电容， 采用插入式全电磁耦合结构和插入检测，尤其适用于电子烟， 相比现有技术具有如下优点：
1 、 效率高；
2 、 工作稳定；
3 、 发热小，无须专门散热片或大大减少其面积；
4 、 能自动检测识别充电，节能环保。
 附图说明
图 1 是本实用新型的电子烟结构示意图；
图 2 是本实用新型的电子烟无线充电装置结构示意图；
图 3 是本实用新型的无线充电装置及其电子烟电原理示意图；
图 4 是图 3 中电子烟的电结构示意图；
图 5 是图 3 中无线充电装置的电结构示意图 。
 本发明的最佳实施方式
如图 1 所示，本实用新型的电子烟组成部件包括烟身上的电池 12 、电池 12 前方烟头部位的接收线圈 11 ，即：图 3 和 4 中的接收线圈 L2 。
如图 2 所示，本实用新型的电子烟无线充电装置组成部件包括电路板 21 、套筒 23 、用于检测电子烟是否插入的光检测装置 24 和发射线圈 22 ，即：图 3 和 5 中的发射线圈 L1 ；发射线圈 22 绕在套筒 23 外对应插入电子烟接收线圈 11 的位置，插入式全电磁耦合结构：插入时接收线圈 11 位于发射线圈 22 内部，两线圈轴心方向一致。
如图 3 所示，本实用新型的电子烟电路包括电池、发热丝 R 、接收线圈 L2 以及内置整流单元的接收电路和控制器；本实用新型的电子烟无线充电装置电路包括与电源依次电连接的带发射控制单元的电子开关和发射线圈 L1 ；发射线圈 L1 和接收线圈 L2 配合使用。
该无线充电装置及其电子烟，具体电路结构如图 4 和 5 所示，其中：电子烟在原有电路（电池、控制芯片 U2 、发热丝 R 和雾化开关 S1 ）基础上增加了用于充电的接收线圈 L2 、整流二极管 D7 、电容和稳压二极管 ZD4 ；无线充电装置包括发射控制芯片 U1 、电子开关 Q1 、发射线圈 L1 ，还包括与发射线圈 L1 并联的补偿电容 C1 ，能提高发射效率，还包括与发射线圈 L1 串联的限流电阻 R1 ，能减少发射线圈 L1 电流，从而可以节省散热器，还包括与发射控制芯片 U1 电连接的光检测装置 24 ，该光检测装置 24 包括光发射组件和光接收组件，插上电源后光发射组件常亮，一旦光接收组件未接收到光，启动发射控制芯片 U1 进行充电控制。
最后，在本领域普通技术人员理解范围内，在本发明权利要求范围内，各种变化都属于本实用新型的保护范围。
 本发明的实施方式
工业实用性
本发明无线充电装置尤其适用于电子烟产品，满足用户无线充电需求、方便用户边充边吸，让电子烟可进一步推广，使广大受传统烟草毒害的烟民可以低成本享受无毒抽烟的乐趣。
序列表自由内容

Claims (10)

1 、 一种无线充电装置，包括与电源依次电连接的电子开关和发射线圈 (L1) ，所述电子开关控制端连接发射控制单元，其特征在于，还包括与所述发射线圈串联的限流电阻 (R1) 。
2 、根据权利要求 1 所述无线充电装置，其特征在于，还包括与所述发射线圈并联的补偿电容 (C1) 。
3 、根据权利要求 1 所述无线充电装置，其特征在于，所述补偿电容 (C1) 是单体电容或组合电容。
4 、根据权利要求 1 或 2 所述无线充电装置，其特征在于，所述电子开关是贴片元件，在内部电路板对应所述发热电子开关的位置敷散热铜片。
5 、 根据权利要求 1 或 2 所述无线充电装置，其特征在于，所述电子开关是贴紧散热片的直插元件 。
6 、根据权利要求 1 或 2 所述无线充电装置，其特征在于， 该无线充电装置是电子烟无线充电装置，还包括与所述发射线圈配合的电子烟插孔或套筒 (23) 。
7 、根据权利要求 5 所述无线充电装置，其特征在于，还包括与发射控制单元电连接的设置在所述电子烟插孔或套筒处的电子烟插入的光检测装置 (24) 。
8 、根据权利要求 5 所述无线充电装置，其特征在于，所述发射线圈及其对应的插孔或套筒是一个或一个以上。
9 、根据权利要求 1 所述无线充电装置，其特征在于，所述电子开关是场效应管 (Q1) 或三极管。
10 、根据权利要求 1 所述无线充电装置，其特征在于，所述限流电阻 (R1) 是单体电阻或组合电阻 。
PCT/CN2011/070773 2011-01-28 2011-01-28 一种无线充电装置 Ceased WO2012100431A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11856970.6A EP2670024B1 (en) 2011-01-28 2011-01-28 Wireless charging device
CN201180002811.XA CN102884710B (zh) 2011-01-28 2011-01-28 一种无线充电装置
PCT/CN2011/070773 WO2012100431A1 (zh) 2011-01-28 2011-01-28 一种无线充电装置
JP2013550730A JP5767342B2 (ja) 2011-01-28 2011-01-28 ワイヤレス充電装置
US13/519,859 US9018899B2 (en) 2011-01-28 2011-01-28 Wireless charging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/070773 WO2012100431A1 (zh) 2011-01-28 2011-01-28 一种无线充电装置

Publications (1)

Publication Number Publication Date
WO2012100431A1 true WO2012100431A1 (zh) 2012-08-02

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PCT/CN2011/070773 Ceased WO2012100431A1 (zh) 2011-01-28 2011-01-28 一种无线充电装置

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US (1) US9018899B2 (zh)
EP (1) EP2670024B1 (zh)
JP (1) JP5767342B2 (zh)
CN (1) CN102884710B (zh)
WO (1) WO2012100431A1 (zh)

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WO2014125479A1 (en) * 2013-02-12 2014-08-21 Sis Resources Ltd. Inductive charging for an electronic cigarette
CN105268057A (zh) * 2014-06-04 2016-01-27 格雷斯海姆雷根斯堡股份有限公司 用于给药的设备

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