WO2014117481A1 - Electromagnetic induction plug and socket - Google Patents

Electromagnetic induction plug and socket Download PDF

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Publication number
WO2014117481A1
WO2014117481A1 PCT/CN2013/079116 CN2013079116W WO2014117481A1 WO 2014117481 A1 WO2014117481 A1 WO 2014117481A1 CN 2013079116 W CN2013079116 W CN 2013079116W WO 2014117481 A1 WO2014117481 A1 WO 2014117481A1
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WO
WIPO (PCT)
Prior art keywords
plug
coil
socket
magnetic
induction
Prior art date
Application number
PCT/CN2013/079116
Other languages
French (fr)
Chinese (zh)
Inventor
蒋克勤
陈发泉
朱维钧
陈力
Original Assignee
上海蔻林半导体照明有限公司
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Application filed by 上海蔻林半导体照明有限公司 filed Critical 上海蔻林半导体照明有限公司
Publication of WO2014117481A1 publication Critical patent/WO2014117481A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • 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
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Definitions

  • the present invention relates to the field of electrical plugs and sockets, and in particular to an electromagnetic induction plug socket.
  • the electromagnetic induction plug socket is an electromagnetic coupling to transfer electrical energy, so it has no metal conductive contact points and is very safe and reliable in use.
  • some inductive devices that transmit electrical energy have poor carrying capacity and low efficiency, which has limited applications.
  • An object of the present invention is to provide an electromagnetic induction plug socket which has a unique structure, strong electromagnetic coupling induction force and high transmission efficiency.
  • an electromagnetic induction plug socket comprising a plug and a socket
  • the plug comprises a plug housing
  • the plug housing is provided with a central shaft core, a central shaft core
  • the plug coil is wound around
  • the socket comprises a socket shell, a loop coil is arranged in the socket shell, and a toroidal core is matched with the loop coil.
  • the loop coil is sleeved outside the plug coil.
  • the toroidal core includes a magnetic sleeve, and the toroidal coil is disposed in the magnetic sleeve, and a magnetic ring is further disposed on both sides of the toroidal coil.
  • the plug is further provided with an induction coil matched with the plug coil, and the plug coil is connected to the power input terminal through a switch circuit, and the induction coil is connected to the control end of the switch circuit or the positive feedback excitation end.
  • the loop coil of the socket When the plug is inserted into the socket, the loop coil of the socket is sleeved outside the plug coil and its central axis core.
  • the coupling coefficient between the primary and secondary of such a structure is the largest and relatively constant, because the primary and secondary mutual inductance are in the same magnetic
  • the magnetic flux of the iron core, the magnetic permeability of the iron core, etc. does not matter.
  • the magnetic circuit formed by the iron core acts on the primary and secondary coils only determines its inductance, as long as the driving frequency or pulse width time matches it. Therefore, the core magnetic circuit in the plug and socket does not affect the transmission power and efficiency due to the existence of the core gap (plug, the wall thickness of the outer casing of the socket).
  • the transmission efficiency can be increased by more than 50%.
  • the invention has the advantages that the electromagnetic coupling has strong induction force and the transmission efficiency is high.
  • FIG. 1 is a schematic view showing the structure of a plug of the present invention.
  • FIG. 2 is a schematic structural view of a socket of the present invention.
  • Figure 3 is a schematic view of the plug inserted into the socket.
  • Figure 4 is a circuit diagram of the present invention.
  • An electromagnetic induction plug socket comprising a plug 1 and a socket 2, characterized in that the plug 1 comprises a plug housing 3, and the plug housing 3 is provided with a central shaft core 4, which is arranged around the central shaft core 4 a plug coil L1, the socket 2 includes a socket shell, a loop coil L4 is disposed in the socket shell, and a toroidal core is matched with the loop coil L4. After the plug is inserted into the socket, the loop coil is sleeved outside the plug coil, and the primary and secondary Coupling is formed on the same magnetic axis.
  • the toroidal core includes a magnetic sleeve 14, a toroidal coil L4 is disposed in the magnetic sleeve 14, and a magnetic ring 13 is further disposed on both sides of the toroidal coil L4.
  • the plug is further provided with induction coils L2 and L3 which cooperate with the plug coil L1.
  • the plug coil L1 is connected to the power input terminal through a switch circuit, and the control coils L2 and L3 and the control terminal or positive feedback excitation end of the switch circuit connection.
  • FIG. 1 is a schematic view showing the structure of a plug of the present invention.
  • a cylindrical central shaft core 4 is disposed in the plug housing 3, and the central shaft core 4 is provided with two recesses, in which the plug coil L1 and the two positive windings are respectively disposed.
  • a feedback coil (a first positive feedback coil L2 and a second positive feedback coil L3) is further provided with a circuit board 6 in the plug housing 3, and the plug coil and the two positive feedback coils both pass through the coil lead line 7 and the circuit board 6
  • the circuit board 6 is also connected to the power input line 8 at the same time.
  • the power supply is converted into a relatively high frequency driving plug coil by the power line input through the switching circuit conversion circuit board, and a corresponding alternating magnetic field is generated in the magnetic core, and two positive feedback coils are used as switching circuit to convert the self-oscillation on the circuit board. Or feedback control of the excitation signal.
  • the resin is potted.
  • FIG. 2 is a schematic structural view of a socket of the present invention.
  • the socket is provided with a toroidal coil and a toroidal core that cooperates therewith.
  • the socket housing 10 is provided with a socket 11 for inserting a plug, and a ring bobbin 15 is disposed around the periphery of the socket 11, and a toroidal coil L4 is disposed around the toroidal coil bobbin 15, and two sides of the toroidal coil L4 are disposed.
  • the toroidal coil L4 is connected to the power output line 16 through a set of rectifying and filtering circuits 12.
  • FIG. 3 is a schematic view of the plug 1 inserted into the socket 2. Since the plug and socket are transmitted by magnetic induction, the plug is converted into magnetic energy by the input electric energy through the plug coil L1 (the primary of the equivalent transformer), and the magnetic energy of the socket is converted into the electric energy output by the loop coil L4 (the secondary of the equivalent transformer). The electric energy consumed by the load is the magnetic energy consumed by the loop coil L4, so the magnetic coupling and the magnetic leakage inductance of the plug coil L1 and the loop coil L4 are essential for the power of the transmitted electric energy.
  • the primary coil and the inner secondary coil are outside (as shown in Figure 3), as if they are all coupled around the central axis core.
  • the coupling coefficient between the primary and secondary components of this structure is The largest and relatively constant (the secondary coil can also be outside the primary coil), because the primary and secondary mutual inductance are on the same magnetic axis, and the magnetic flux of the iron core, the magnetic permeability of the iron core, etc., the core composition
  • the magnetic circuit acts on the primary and secondary coils only determines its inductance. As long as the driving frequency or pulse width time matches it, the core magnetic circuit in the plug socket will not be affected by the existence of the core gap. Pass power and efficiency.
  • the primary and secondary gaps are relatively large, and the core gap is relatively large, so that the primary and secondary leakage inductances are relatively large, and the magnetic resistance at the core gap is relatively large. Make the following compensation.
  • the magnetic sleeve, the magnetic ring and the central shaft core are formed to form a center magnetic core as a center, the magnetic ring and the magnetic sleeve are the entire magnetic conductive loop of the magnetic circuit, so as to overcome or compensate for the leakage caused by the primary and secondary gaps. Feeling, closed the magnetic leakage.
  • Increasing the area of the magnetic joint surface reduces the magnetic resistance caused by the gap of the magnetic core, and increases the magnetic flux of the magnetic circuit because
  • the magnetic circuit is evenly distributed on the circumference of the magnetic sleeve (axial direction), so the wall thickness of the magnetic sleeve can be thin, which is advantageous for reducing the volume of the socket.
  • the wall of the plug socket is about 1 mm, the gap between the plug core coil and the loop coil of the socket reaches 23 mm, therefore, we conducted an experiment on this, and it was proved that when The diameter of the central shaft core is 14 18
  • the depth of the groove of the plug coil L1 is set to be T5mm, the length is 8 12mm, and the axial length of the toroidal coil is 2 (T24mm, the axial length and center of the magnetic ring at both ends of the toroidal coil
  • the axial length of the shaft core without the groove is 8 12mm, the wall thickness of the magnetic ring is T5mm, the wall thickness of the magnetic sleeve is 3mm wide, and the plug and socket with such structure can achieve the transmission power of more than 25w.
  • FIG. 4 is a circuit diagram of the present invention.
  • the plug as an input part does not stop when the plug and socket are separated In operation, not only energy but also magnetic pollution is consumed.
  • a feedback coil that cooperates with the plug coil (primary) is also added to the plug in the present invention.
  • the feedback coil includes a first feedback coil L2 and a second feedback coil L3, the switch circuit includes a first electronic switch and a second electronic switch, the first feedback coil L2 is connected to the control end of the first electronic switch, and the second feedback coil L3 is The control end of the second electronic switch is connected, the power input end is connected to the input end of the rectifier circuit, and the output end of the rectifier circuit is connected to the plug coil through the first electronic switch and the second electronic switch, respectively.
  • the central axis core 4 and the toroidal core form a magnetic circuit
  • the first coil L1 and the second coil L4 and the feedback coil L2L3 are in the same magnetic circuit
  • the first coil L1 is energized
  • the second coil L4 The induced electromotive force is generated to make the socket energized
  • the feedback coil generates an induced electromotive force
  • the control switch circuit is turned on or the excitation switch circuit is oscillated, so that the first coil is continuously energized.
  • the magnetic core in the plug and the magnetic core in the socket form a magnetic circuit 3.
  • the first electronic switch and the second electronic switch are respectively a first transistor T1 and a second transistor T2, and one end of the first feedback coil L2 and the first transistor T1 are emitted.
  • the other end of the first feedback coil L2 is connected to the base of the first transistor T1 through a capacitor and a resistor.
  • One end of the second feedback coil L3 is connected to the emitter of the second transistor ,2, and the second feedback coil is connected.
  • the other end of L3 is connected to the base of the second transistor ⁇ 2 through a capacitor and a resistor.
  • One end of the rectifier circuit is connected to the emitter of the first transistor T1, and the collector and the second three pole of the first transistor T1 are connected.
  • the emitter of the tube 2 is connected, the collector of the second transistor 2 is connected to the other end of the rectifier circuit, and the collector of the first transistor T1 is connected to the first end of the first coil L1, and the first coil L1 is The two ends are connected to the two output ends of the rectifier circuit through the first capacitor and the second capacitor, respectively.
  • the plug is provided with a primary coil and a feedback coil
  • the socket is provided with a secondary coil

Abstract

An electromagnetic induction plug and socket comprise a plug (1) and a socket (2). The plug comprises a plug housing (3), the plug housing is provided with a central shaft magnetic core (4), and a plug coil (L1) is wound around the central shaft magnetic core. The socket comprises a socket housing, an annular coil (L4) and an annular magnetic core coordinating with the annular coil are provided in the socket housing, and after the plug is inserted in the socket, the annular coil is sleeved on the plug coil. Mutual induction of primary and secondary coils formed by the plug coil and the socket coil occurs on a same magnetic axis, which is irrelevant to the magnetic flux, magnetic permeability, and the like of an iron core, and the effect of a magnetic loop, formed by the iron core, on the primary coil only decides the amount of induction of the primary coil, as long as the driving frequency or pulse width time of the magnetic loop matches with that of the primary coil; therefore, the iron core magnetic loop in the plug and socket does not affect the transmission power and efficiency due to the existence of iron core gaps. The electromagnetic induction plug and socket have advantages of strong electromagnetic coupling induction capability and high transmission efficiency.

Description

电磁感应插头插座 技术领域  Electromagnetic induction plug socket
本发明涉及电插头插座领域， 具体涉及一种电磁感应插头插座。  The present invention relates to the field of electrical plugs and sockets, and in particular to an electromagnetic induction plug socket.
背景技术 Background technique
电磁感应插头插座是一种靠电磁耦合来传递电能的， 因此它没有金属导电 接触点， 使用中非常安全可靠。但是以往一些传递电能的感应装置承载能力差， 效率也不高， 使应用受到了局限。  The electromagnetic induction plug socket is an electromagnetic coupling to transfer electrical energy, so it has no metal conductive contact points and is very safe and reliable in use. However, some inductive devices that transmit electrical energy have poor carrying capacity and low efficiency, which has limited applications.
发明内容 Summary of the invention
本发明的目的是提供一种结构独特， 电磁偶合感应力强， 传递效率高的电 磁感应插头插座。  SUMMARY OF THE INVENTION An object of the present invention is to provide an electromagnetic induction plug socket which has a unique structure, strong electromagnetic coupling induction force and high transmission efficiency.
为了实现上述目的， 本发明的技术方案为： 一种电磁感应插头插座， 包括 插头和插座， 其特征在于所述插头包括插头外壳， 所述插头外壳内设有中心轴 磁芯， 中心轴磁芯上绕设有的插头线圈， 所述插座包括插座外壳， 插座外壳内 设有环形线圈， 以及与所述环形线圈配合的环形磁芯， 插头插入插座后， 环形 线圈套设在插头线圈外。所述环形磁芯包括一磁套， 环形线圈设置在该磁套内， 环形线圈的两侧还设有磁环。 所述插头还设有与插头线圈相配合的感应线圈， 插头线圈通过一开关电路与电源输入端连接， 所述感应线圈与开关电路的控制 端或正反馈激励端连接。  In order to achieve the above object, the technical solution of the present invention is: an electromagnetic induction plug socket, comprising a plug and a socket, wherein the plug comprises a plug housing, wherein the plug housing is provided with a central shaft core, a central shaft core The plug coil is wound around, the socket comprises a socket shell, a loop coil is arranged in the socket shell, and a toroidal core is matched with the loop coil. After the plug is inserted into the socket, the loop coil is sleeved outside the plug coil. The toroidal core includes a magnetic sleeve, and the toroidal coil is disposed in the magnetic sleeve, and a magnetic ring is further disposed on both sides of the toroidal coil. The plug is further provided with an induction coil matched with the plug coil, and the plug coil is connected to the power input terminal through a switch circuit, and the induction coil is connected to the control end of the switch circuit or the positive feedback excitation end.
当插头插入插座时， 插座的环形线圈套在插头线圈及其中心轴磁芯外， 这 样的结构初次级间的耦合系数是最大的且相对不变的， 因为初次级的互感是在 同一个磁轴上， 和铁芯的磁通量， 铁芯的导磁率等没关系， 铁芯构成的磁回路 作用在初次级线圈上只是决定了它的电感量， 只要驱动的频率或者脉宽时间与 之相匹配就行了， 所以插头插座内的铁芯磁回路不会因为存在铁芯间隙（插头， 插座的外壳壁厚） 而影响传递功率和效率， 经实验， 传递效率可提高 50%以上。 本发明的优点在于电磁耦合感应力强， 传递效率高。  When the plug is inserted into the socket, the loop coil of the socket is sleeved outside the plug coil and its central axis core. The coupling coefficient between the primary and secondary of such a structure is the largest and relatively constant, because the primary and secondary mutual inductance are in the same magnetic On the shaft, the magnetic flux of the iron core, the magnetic permeability of the iron core, etc., does not matter. The magnetic circuit formed by the iron core acts on the primary and secondary coils only determines its inductance, as long as the driving frequency or pulse width time matches it. Therefore, the core magnetic circuit in the plug and socket does not affect the transmission power and efficiency due to the existence of the core gap (plug, the wall thickness of the outer casing of the socket). Through experiments, the transmission efficiency can be increased by more than 50%. The invention has the advantages that the electromagnetic coupling has strong induction force and the transmission efficiency is high.
附图说明 图 1为本发明的插头的结构示意图。 DRAWINGS Figure 1 is a schematic view showing the structure of a plug of the present invention.
图 2为本发明的插座的结构示意图。  2 is a schematic structural view of a socket of the present invention.
图 3为插头插入插座的示意图。  Figure 3 is a schematic view of the plug inserted into the socket.
图 4为本发明的电路图。  Figure 4 is a circuit diagram of the present invention.
具体实施方式  detailed description
下面结合附图和实例对本发明作详细说明。  The invention will now be described in detail in conjunction with the drawings and examples.
一种电磁感应插头插座， 包括插头 1和插座 2， 其特征在于所述插头 1包括插 头外壳 3， 所述插头外壳 3内设有中心轴磁芯 4， 中心轴磁芯 4上绕设有的插头线 圈 Ll， 所述插座 2包括插座外壳， 插座外壳内设有环形线圈 L4， 以及与所述环形 线圈 L4配合的环形磁芯， 插头插入插座后， 环形线圈套设在插头线圈外， 初次 级在同一个磁轴上形成耦合。 所述环形磁芯包括一磁套 14， 环形线圈 L4设置在 该磁套 14内， 环形线圈 L4的两侧还设有磁环 13。 所述插头还设有与插头线圈 L1 相配合的感应线圈 L2、 L3， 插头线圈 L1通过一开关电路与电源输入端连接， 所 述感应线圈 L2、 L3与开关电路的控制端或正反馈激励端连接。  An electromagnetic induction plug socket comprising a plug 1 and a socket 2, characterized in that the plug 1 comprises a plug housing 3, and the plug housing 3 is provided with a central shaft core 4, which is arranged around the central shaft core 4 a plug coil L1, the socket 2 includes a socket shell, a loop coil L4 is disposed in the socket shell, and a toroidal core is matched with the loop coil L4. After the plug is inserted into the socket, the loop coil is sleeved outside the plug coil, and the primary and secondary Coupling is formed on the same magnetic axis. The toroidal core includes a magnetic sleeve 14, a toroidal coil L4 is disposed in the magnetic sleeve 14, and a magnetic ring 13 is further disposed on both sides of the toroidal coil L4. The plug is further provided with induction coils L2 and L3 which cooperate with the plug coil L1. The plug coil L1 is connected to the power input terminal through a switch circuit, and the control coils L2 and L3 and the control terminal or positive feedback excitation end of the switch circuit connection.
图 1为本发明的插头的结构示意图。 如图所示， 插头外壳 3内设有一圆柱形 的中心轴磁芯 4， 该中心轴磁芯 4设有两个凹槽， 在所述凹槽内分别绕设有插头 线圈 L1和两个正反馈线圈 （第一正反馈线圈 L2和第二正反馈线圈 L3 ) 该插头外 壳 3内还设有一线路板 6，所述插头线圈和两个正反馈线圈均通过线圈引出线 7与 该线路板 6连接， 同时该线路板 6还与电源输入线 8连接。 电源由电源线输入经开 关电路转换线路板转换成比较高的频率驱动插头线圈， 在磁芯内产生出相对应 的交变磁场， 两个正反馈线圈用作开关电路转换线路板上自激振荡或者反馈控 制的激励信号。 为了防水整个壳体内用树脂灌封。  Figure 1 is a schematic view showing the structure of a plug of the present invention. As shown in the figure, a cylindrical central shaft core 4 is disposed in the plug housing 3, and the central shaft core 4 is provided with two recesses, in which the plug coil L1 and the two positive windings are respectively disposed. a feedback coil (a first positive feedback coil L2 and a second positive feedback coil L3) is further provided with a circuit board 6 in the plug housing 3, and the plug coil and the two positive feedback coils both pass through the coil lead line 7 and the circuit board 6 The circuit board 6 is also connected to the power input line 8 at the same time. The power supply is converted into a relatively high frequency driving plug coil by the power line input through the switching circuit conversion circuit board, and a corresponding alternating magnetic field is generated in the magnetic core, and two positive feedback coils are used as switching circuit to convert the self-oscillation on the circuit board. Or feedback control of the excitation signal. In order to waterproof the entire housing, the resin is potted.
图 2为本发明的插座的结构示意图。插座设有环形线圈及与其配合的环形磁 芯。 如图所示， 插座外壳 10设有一用于插入插头的插孔 11， 在插孔 11外围设有 一环形线圈骨架 15， 环形线圈骨架 15内绕设有环形线圈 L4， 环形线圈 L4的两侧 设有两个磁环 13， 在所述环形线圈 L4和磁环 13外套有一磁套 14， 所述环形线圈 L4通过一套整流滤波电路 12与电源输出线 16连接。 为了防水整个壳体内用树脂 灌封。 来自插头的交变磁场在作为次级的环形线圈内产生磁感电势， 与之相对 应的交变电势经整流， 滤波由电源输出线输出。 图 3为插头 1插入插座 2时的示意图。由于插头插座是通过磁感应来传递电能 的， 插头由输入的电能经插头线圈 L1 (等效变压器的初级） 转换成磁能， 插座 感应磁能由环形线圈 L4 (等效变压器的次级） 转换成电能输出， 负载所消耗的 电能也就是环形线圈 L4消耗的磁能， 所以插头线圈 Ll、 环形线圈 L4的磁耦合和 磁漏感对传递电能的功率， 效率至关重要， 2 is a schematic structural view of a socket of the present invention. The socket is provided with a toroidal coil and a toroidal core that cooperates therewith. As shown in the figure, the socket housing 10 is provided with a socket 11 for inserting a plug, and a ring bobbin 15 is disposed around the periphery of the socket 11, and a toroidal coil L4 is disposed around the toroidal coil bobbin 15, and two sides of the toroidal coil L4 are disposed. There are two magnetic rings 13, and a magnetic sleeve 14 is mounted on the toroidal coil L4 and the magnetic ring 13. The toroidal coil L4 is connected to the power output line 16 through a set of rectifying and filtering circuits 12. In order to waterproof the entire housing, the resin is potted. The alternating magnetic field from the plug generates a magnetic induction potential in the toroidal coil as the secondary, and the alternating potential corresponding thereto is rectified, and the filtering is outputted by the power supply output line. FIG. 3 is a schematic view of the plug 1 inserted into the socket 2. Since the plug and socket are transmitted by magnetic induction, the plug is converted into magnetic energy by the input electric energy through the plug coil L1 (the primary of the equivalent transformer), and the magnetic energy of the socket is converted into the electric energy output by the loop coil L4 (the secondary of the equivalent transformer). The electric energy consumed by the load is the magnetic energy consumed by the loop coil L4, so the magnetic coupling and the magnetic leakage inductance of the plug coil L1 and the loop coil L4 are essential for the power of the transmitted electric energy.
当插头插座插在一起时， 初级线圈在内次级线圈在外 （如图 3所示） ， 就好 像都是绕设在中心轴磁芯上那样形成耦合， 这样的结构初次级间的耦合系数是 最大的且相对不变的 （也可以次级线圈在内初级线圈在外） ， 因为初次级的互 感是在同一个磁轴上， 和铁芯的磁通量， 铁芯的导磁率等没关系， 铁芯构成的 磁回路作用在初次级线圈上只是决定了它的电感量， 只要驱动的频率或者脉宽 时间与之相匹配就行了， 所以插头插座内的铁芯磁回路不会因为存在铁芯间隙 而影响传递功率和效率。  When the plug and socket are plugged together, the primary coil and the inner secondary coil are outside (as shown in Figure 3), as if they are all coupled around the central axis core. The coupling coefficient between the primary and secondary components of this structure is The largest and relatively constant (the secondary coil can also be outside the primary coil), because the primary and secondary mutual inductance are on the same magnetic axis, and the magnetic flux of the iron core, the magnetic permeability of the iron core, etc., the core composition The magnetic circuit acts on the primary and secondary coils only determines its inductance. As long as the driving frequency or pulse width time matches it, the core magnetic circuit in the plug socket will not be affected by the existence of the core gap. Pass power and efficiency.
由于插头插座所形成的 （壳体壁厚） 使得初级和次级间隙比较大， 磁芯 间隙比较大， 因此会使初级和次级漏感比较大， 磁芯间隙处磁阻比较大， 为此 作以下弥补。  Due to the thickness of the plug socket (the wall thickness of the casing), the primary and secondary gaps are relatively large, and the core gap is relatively large, so that the primary and secondary leakage inductances are relatively large, and the magnetic resistance at the core gap is relatively large. Make the following compensation.
采用磁套， 磁环和中心轴磁芯， 形成以中心轴磁芯为圆心， 磁环， 磁套为 磁回路的整个导磁环路，这样可以克服或补偿由于初次级的间隙所造成的漏感， 封闭了磁外泄。 加大了磁合面的面积 （磁环的轴向长度和中心轴磁芯王字形两 端轴向长度） 减小了由于磁芯的间隙所造成的磁阻， 提高了磁回路的磁通量， 因为磁回路均布在整个磁套的圆周上 （轴向） ， 所以磁套的壁厚可以较薄， 有 利减小插座的体积。适当提高驱动频率， 改善初次级的耦合度和电感量的要求， 提高承载能力。 根据本发明的优选实施例， 由于插头插座的壳壁约 lmm， 使得插 头磁芯线圈与插座的环形线圈之间的间隙达到 2 3mm时， 因此， 我们对此进行实 验， 实践证明， 当所述中心轴磁芯的直径为 14 18 设置插头线圈 L1的凹槽的 深度为; T5mm， 长度为 8 12mm， 环形线圈的轴向长度为 2(T24mm， 环形线圈两端 磁环的轴向长度和中心轴磁芯两端未设置凹槽处的轴向长度为 8 12mm， 磁环的 壁厚为; T5mm， 磁套的壁厚为广 3mm， 采用这样结构的插头插座能达到 25w以上的 传递功率。  The magnetic sleeve, the magnetic ring and the central shaft core are formed to form a center magnetic core as a center, the magnetic ring and the magnetic sleeve are the entire magnetic conductive loop of the magnetic circuit, so as to overcome or compensate for the leakage caused by the primary and secondary gaps. Feeling, closed the magnetic leakage. Increasing the area of the magnetic joint surface (the axial length of the magnetic ring and the axial length of the central axis of the central axis core) reduces the magnetic resistance caused by the gap of the magnetic core, and increases the magnetic flux of the magnetic circuit because The magnetic circuit is evenly distributed on the circumference of the magnetic sleeve (axial direction), so the wall thickness of the magnetic sleeve can be thin, which is advantageous for reducing the volume of the socket. Appropriately increase the drive frequency, improve the coupling and inductance requirements of the primary and secondary, and improve the load carrying capacity. According to a preferred embodiment of the present invention, since the wall of the plug socket is about 1 mm, the gap between the plug core coil and the loop coil of the socket reaches 23 mm, therefore, we conducted an experiment on this, and it was proved that when The diameter of the central shaft core is 14 18 The depth of the groove of the plug coil L1 is set to be T5mm, the length is 8 12mm, and the axial length of the toroidal coil is 2 (T24mm, the axial length and center of the magnetic ring at both ends of the toroidal coil The axial length of the shaft core without the groove is 8 12mm, the wall thickness of the magnetic ring is T5mm, the wall thickness of the magnetic sleeve is 3mm wide, and the plug and socket with such structure can achieve the transmission power of more than 25w.
图 4为本发明的电路图。在插头插座分离时， 作为输入部件的插头没有停止 工作， 不仅消耗了能源， 还有磁污染， 为了避免这种情况的发生， 在本发明中 还在插头中加入了与插头线圈 （初级） 相配合的反馈线圈。 其中反馈线圈包括 第一反馈线圈 L2和第二反馈线圈 L3， 开关电路包括第一电子开关和第二电子开 关， 第一反馈线圈 L2与第一电子开关的控制端连接， 第二反馈线圈 L3与第二电 子开关的控制端连接， 电源输入端与整流电路的输入端连接， 整流电路的输出 端分别通过第一电子开关和第二电子开关与插头线圈连接。 Figure 4 is a circuit diagram of the present invention. The plug as an input part does not stop when the plug and socket are separated In operation, not only energy but also magnetic pollution is consumed. In order to avoid this, a feedback coil that cooperates with the plug coil (primary) is also added to the plug in the present invention. The feedback coil includes a first feedback coil L2 and a second feedback coil L3, the switch circuit includes a first electronic switch and a second electronic switch, the first feedback coil L2 is connected to the control end of the first electronic switch, and the second feedback coil L3 is The control end of the second electronic switch is connected, the power input end is connected to the input end of the rectifier circuit, and the output end of the rectifier circuit is connected to the plug coil through the first electronic switch and the second electronic switch, respectively.
当插头插入插座时中心轴磁芯 4和环形磁芯形成磁回路，第一线圈 L1和第二 线圈 L4及反馈线圈 L2L3处在同一个磁回路中， 第一线圈 L1通电， 则第二线圈 L4 产生感生电动势， 使得插座得电， 同时反馈线圈产生感生电动势， 控制开关电 路导通或激励开关电路震荡， 使得第一线圈持续通电。 如图所示， 此时插头内 的磁芯和插座内的磁芯形成磁回路 3。  When the plug is inserted into the socket, the central axis core 4 and the toroidal core form a magnetic circuit, the first coil L1 and the second coil L4 and the feedback coil L2L3 are in the same magnetic circuit, and the first coil L1 is energized, and the second coil L4 The induced electromotive force is generated to make the socket energized, and the feedback coil generates an induced electromotive force, and the control switch circuit is turned on or the excitation switch circuit is oscillated, so that the first coil is continuously energized. As shown, the magnetic core in the plug and the magnetic core in the socket form a magnetic circuit 3.
根据本发明的具体实施例， 其中第一电子开关和第二电子开关分别为第一 三极管 T1和第二三极管 T2， 第一反馈线圈 L2的一端与第一三极管 T1的发射极连 接， 第一反馈线圈 L2的另一端通过电容和电阻与第一三极管 T1的基极连接， 第 二反馈线圈 L3的一端与第二三极管 Τ2的发射极连接， 第二反馈线圈 L3的另一端 通过电容和电阻与第二三极管 Τ2的基极连接， 整流电路的一端与第一三极管 T1 的发射极连接， 第一三极管 T1的集电极与第二三极管 Τ2的发射极连接， 第二三 极管 Τ2的集电极与整流电路的另一端连接， 第一三极管 T1的集电极与第一线圈 L1的第一端连接， 第一线圈 L1的第二端分别通过第一电容和第二电容与整流电 路的两个输出端连接。  According to a specific embodiment of the present invention, the first electronic switch and the second electronic switch are respectively a first transistor T1 and a second transistor T2, and one end of the first feedback coil L2 and the first transistor T1 are emitted. The other end of the first feedback coil L2 is connected to the base of the first transistor T1 through a capacitor and a resistor. One end of the second feedback coil L3 is connected to the emitter of the second transistor ,2, and the second feedback coil is connected. The other end of L3 is connected to the base of the second transistor 通过2 through a capacitor and a resistor. One end of the rectifier circuit is connected to the emitter of the first transistor T1, and the collector and the second three pole of the first transistor T1 are connected. The emitter of the tube 2 is connected, the collector of the second transistor 2 is connected to the other end of the rectifier circuit, and the collector of the first transistor T1 is connected to the first end of the first coil L1, and the first coil L1 is The two ends are connected to the two output ends of the rectifier circuit through the first capacitor and the second capacitor, respectively.
根据本发明的实施例， 由于电源输入端为插头， 因此插头设置的是初级线 圈和反馈线圈， 而插座设置的是次级线圈， 本领域的技术人员应当理解， 当电 源输入端为插座时， 初级线圈和反馈线圈则是设置在插座上的， 插头设置的就 应为次级线圈。  According to an embodiment of the present invention, since the power input terminal is a plug, the plug is provided with a primary coil and a feedback coil, and the socket is provided with a secondary coil, and those skilled in the art should understand that when the power input terminal is a socket, The primary coil and the feedback coil are placed on the socket, and the plug should be set as the secondary coil.

Claims

权 利 要 求 书 claims
1、 一种电磁感应插头插座， 包括插头和插座， 其特征在于所述 插头包括插头外壳， 所述插头外壳设有中心轴磁芯， 中心轴磁芯上 绕设有的插头线圈， 所述插座包括插座外壳， 插座外壳内设有环形 线圈， 以及与所述环形线圈配合的环形磁芯， 插头插入插座后， 环 形线圈套设在插头线圈外。 1. An electromagnetic induction plug and socket, including a plug and a socket, characterized in that the plug includes a plug shell, the plug shell is provided with a central axis magnetic core, and a plug coil is wound around the central axis magnetic core. The socket It includes a socket shell, a ring coil is provided in the socket shell, and a ring magnetic core matched with the ring coil. After the plug is inserted into the socket, the ring coil is set outside the plug coil.
2、 按权利要求 1所述的磁感应插头插座， 其特征在于： 所述环 形磁芯包括一磁套， 环形线圈设置在该磁套内， 环形线圈的两侧还 设有磁环。 2. The magnetic induction plug and socket according to claim 1, characterized in that: the annular magnetic core includes a magnetic sleeve, the annular coil is arranged in the magnetic sleeve, and magnetic rings are also provided on both sides of the annular coil.
3、 按权利要求 2所述的磁感应插头插座， 其特征在于： 所述插 头还设有与插头线圈相配合的感应线圈， 插头线圈通过一开关电路 和电源输入端连接， 所述感应线圈与开关电路的正反馈激励端连接。 3. The magnetic induction plug and socket according to claim 2, characterized in that: the plug is also provided with an induction coil that matches the plug coil, the plug coil is connected to the power input end through a switch circuit, and the induction coil is connected to the switch. The positive feedback excitation end of the circuit is connected.
4、 按权利要求 3所述的磁感应插头插座， 其特征在于： 其中反 馈线圈包括第一反馈线圈和第二反馈线圈， 开关电路包括第一电子 开关和第二电子开关， 第一反馈线圈与第一电子开关的控制端连接， 第二反馈线圈与第二电子开关的控制端连接， 电源输入端与整流电 路的输入端连接， 整流电路的输出端分别通过第一电子开关和第二 电子开关与插头线圈连接。 4. The magnetic induction plug and socket according to claim 3, characterized in that: the feedback coil includes a first feedback coil and a second feedback coil, the switching circuit includes a first electronic switch and a second electronic switch, and the first feedback coil and the second feedback coil The control end of an electronic switch is connected, the second feedback coil is connected to the control end of the second electronic switch, the power input end is connected to the input end of the rectifier circuit, and the output end of the rectifier circuit is connected to the first electronic switch and the second electronic switch respectively. Plug coil connection.
PCT/CN2013/079116 2013-02-04 2013-07-10 Electromagnetic induction plug and socket WO2014117481A1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106025688A (en) * 2016-07-22 2016-10-12 赵亦洲 Safety socket
US9544964B2 (en) 2015-04-30 2017-01-10 S.R. Smith, Llc Lighting devices employing class-E power amplifier for inductive power and data transfer in high-moisture operating environments
EP3182425A1 (en) * 2015-12-16 2017-06-21 Jiang, Keqin Electromagnetic induction apparatus for power transfer
WO2018140065A1 (en) * 2017-01-25 2018-08-02 Jiang Keqin Electromagnetic induction apparatus for power transfer
CN111725898A (en) * 2019-03-18 2020-09-29 蔻林科技发展(上海)有限公司 Non-metal contact electric energy transmission connecting device
US11326363B2 (en) 2019-01-25 2022-05-10 Guangzhou Rising Dragon Recreation Industrial Co. Wireless swimming pool LED lighting device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104319544B (en) * 2014-10-09 2016-06-01 王春阳 Isolation induction type bayonet joint
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1134636A (en) * 1995-04-26 1996-10-30 王则林 Electromagnetic inductive contactless data transmission interface
CN1362770A (en) * 2000-12-27 2002-08-07 东光株式会社 Contactless charger
CN1378331A (en) * 2001-03-26 2002-11-06 株式会社村田制作所 Switch power device and electronic device for using said switch power device
JP4112474B2 (en) * 2003-10-31 2008-07-02 米沢電線株式会社 Contactless rechargeable equipment
CN202076854U (en) * 2011-04-20 2011-12-14 九阳股份有限公司 Safe coupler and cooking utensil using the same
CN102447200A (en) * 2010-10-14 2012-05-09 修武县电业公司 Inductive plugging device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3247328B2 (en) * 1997-12-09 2002-01-15 浩 坂本 Non-contact power transmission device
CN201259911Y (en) * 2008-07-18 2009-06-17 联芯科技有限公司 Contactless charging equipment
CN102097869A (en) * 2009-12-15 2011-06-15 台达电子工业股份有限公司 Connecting structure of power adapter and electronic device
JP2011249229A (en) * 2010-05-28 2011-12-08 Sharp Corp Power feeding socket
CN102570202B (en) * 2012-03-12 2013-12-25 浙江大学 Underwater equipment interface based on inductive power transmission and wireless local area network (WLAN) signal transmission

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1134636A (en) * 1995-04-26 1996-10-30 王则林 Electromagnetic inductive contactless data transmission interface
CN1362770A (en) * 2000-12-27 2002-08-07 东光株式会社 Contactless charger
CN1378331A (en) * 2001-03-26 2002-11-06 株式会社村田制作所 Switch power device and electronic device for using said switch power device
JP4112474B2 (en) * 2003-10-31 2008-07-02 米沢電線株式会社 Contactless rechargeable equipment
CN102447200A (en) * 2010-10-14 2012-05-09 修武县电业公司 Inductive plugging device
CN202076854U (en) * 2011-04-20 2011-12-14 九阳股份有限公司 Safe coupler and cooking utensil using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9544964B2 (en) 2015-04-30 2017-01-10 S.R. Smith, Llc Lighting devices employing class-E power amplifier for inductive power and data transfer in high-moisture operating environments
EP3182425A1 (en) * 2015-12-16 2017-06-21 Jiang, Keqin Electromagnetic induction apparatus for power transfer
US20170179728A1 (en) * 2015-12-16 2017-06-22 Keqin Jiang Electromagnetic induction apparatus for power transfer
CN106025688A (en) * 2016-07-22 2016-10-12 赵亦洲 Safety socket
WO2018140065A1 (en) * 2017-01-25 2018-08-02 Jiang Keqin Electromagnetic induction apparatus for power transfer
US11326363B2 (en) 2019-01-25 2022-05-10 Guangzhou Rising Dragon Recreation Industrial Co. Wireless swimming pool LED lighting device
CN111725898A (en) * 2019-03-18 2020-09-29 蔻林科技发展(上海)有限公司 Non-metal contact electric energy transmission connecting device

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