WO2014176856A1 - Method and system for wireless electric energy transmission - Google Patents

Method and system for wireless electric energy transmission Download PDF

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Publication number
WO2014176856A1
WO2014176856A1 PCT/CN2013/083315 CN2013083315W WO2014176856A1 WO 2014176856 A1 WO2014176856 A1 WO 2014176856A1 CN 2013083315 W CN2013083315 W CN 2013083315W WO 2014176856 A1 WO2014176856 A1 WO 2014176856A1
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WO
WIPO (PCT)
Prior art keywords
wireless power
wireless
alternating current
transmitter
signal
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Application number
PCT/CN2013/083315
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French (fr)
Chinese (zh)
Inventor
李聃
张衍昌
龙海岸
Original Assignee
海尔集团技术研发中心
海尔集团公司
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Application filed by 海尔集团技术研发中心, 海尔集团公司 filed Critical 海尔集团技术研发中心
Publication of WO2014176856A1 publication Critical patent/WO2014176856A1/en

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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
    • H02J50/20Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • 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

Definitions

  • the present invention relates to the field of radio energy transmission technologies, and in particular, to a radio energy transmission method and system.
  • BACKGROUND OF THE INVENTION Conventional electrical equipment usually uses a power supply line to draw power from a socket. This power supply mode has many safety hazards during use, such as in a watery scene such as a kitchen, which can easily cause a user to get an electric shock, and the book
  • An object of the present invention is to provide a radio energy transmission method and system, which realizes universal use of a radio energy receiver on different kitchen appliances through a universal standardized interface, thereby reducing design cost and facilitating radio energy transmission technology in kitchen electrical equipment.
  • the present invention provides the following technical solution for achieving the object of the present invention - a radio energy transmission method, comprising:
  • the radio energy receiver converts magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling
  • the radio energy receiver converts the high frequency alternating current into a direct current whose voltage is a sinusoidal one-way pulse voltage
  • the radio energy receiver outputs the DC power of the above voltage as a sinusoidal one-way pulse voltage to the electrical load.
  • the sinusoidal unidirectional pulse voltage has an effective value of 220V and a frequency of 100 Hz.
  • the above method further includes:
  • the wireless power receiver receives the working state information of the electrical load
  • the radio energy receiver processes the above working state information to obtain working state data
  • the radio energy receiver transmits a wireless signal to the radio energy transmitter according to the above working state data, so that the radio energy transmitter intelligently adjusts the transmission power according to the wireless signal.
  • the wireless energy transmitter intelligently adjusts the transmit power according to the wireless signal, specifically:
  • the wireless power transmitter receives the wireless signal
  • the radio energy transmitter identifies the working state information of the electrical load according to the wireless signal, and intelligently adjusts the transmitting power according to the working state information.
  • the radio energy receiver converts the magnetic energy received from the radio energy transmitter into the high frequency alternating current by magnetic field coupling, the radio energy receiver further includes:
  • the radio energy transmitter filters out high frequency interference clutter in the input power frequency alternating current
  • the radio energy transmitter rectifies and filters the power frequency alternating current that filters out high frequency interference clutter to obtain direct current;
  • the radio energy transmitter inverts the above-mentioned rectified and filtered direct current into alternating current; the radio energy transmitter transmits the above-mentioned inverted alternating current to the radio energy receiver in the form of magnetic energy.
  • a radio energy transmission system comprising: a radio energy transmitter and a radio energy receiver; the radio energy receiver comprising: a receiving coil, a rectifying and filtering circuit, and a power bus interface;
  • a receiving coil for converting magnetic energy received from the wireless energy transmitter into high frequency alternating current by magnetic field coupling
  • a rectifying and filtering circuit for converting the high-frequency alternating current into a direct current having a sinusoidal unidirectional pulse voltage
  • a power bus interface for transmitting the DC power of the above voltage to a sinusoidal one-way pulse voltage to an electrical load.
  • the sinusoidal unidirectional pulse voltage has an effective value of 220V and a frequency of 100 Hz.
  • the above wireless energy receiver further comprises: a signal bus interface, a receiving end control circuit and a signal wireless transmitting circuit;
  • the signal bus interface is a universal serial port circuit, including a data line interface, a power line and a ground line; wherein the data line interface is used for receiving working status information of the electrical load;
  • a receiving end control circuit configured to process the working state information to obtain working state data
  • a signal wireless transmitting circuit configured to send a wireless signal to the wireless energy transmitter according to the working state data, so that the wireless energy transmitter transmits according to the wireless signal pair
  • the power is intelligently adjusted.
  • the radio energy transmitter comprises: a signal wireless receiving circuit and a transmitting end control circuit; and a signal wireless receiving circuit, configured to receive the wireless signal;
  • the transmitting end control circuit is configured to identify the working state information of the electrical load according to the wireless signal, and intelligently adjust the transmitting power according to the working state information.
  • the radio energy transmitter further includes: an EMI filter circuit, a rectification filter circuit, an inverter circuit, and a transmitting coil;
  • An EMI filter circuit for filtering high frequency interference clutter in the input power frequency alternating current
  • a rectifying and filtering circuit for rectifying and filtering a power frequency alternating current that filters out high frequency interference clutter to obtain direct current
  • An inverter circuit configured to invert the DC power obtained by the above rectification and filtering into an alternating current
  • the beneficial effects of the present invention are: converting the high frequency alternating current into a direct current having a sinusoidal unidirectional pulse voltage Directly to the electrical load, the above-mentioned voltage is a sinusoidal unidirectional pulse voltage of DC power as standard power, transmitted by a standardized power bus interface, to achieve universal use of the wireless energy receiver on different kitchen appliances.
  • the standardized signal bus interface receives the working state information of the electrical load, and is processed into working state data, according to which the wireless signal is transmitted, so that the wireless energy transmitter intelligently adjusts the transmitting power according to the wireless signal to implement the wireless energy receiver. Universal on kitchen appliances of different powers.
  • FIG. 1 is a flow chart of a first embodiment of a method for transmitting radio energy according to the present invention
  • FIG. 2 is a flow chart of a second embodiment of a method for transmitting radio energy according to the present invention.
  • FIG. 3 is a flow chart of an embodiment of a method for intelligently adjusting transmit power in the present invention
  • FIG. 4 is a block diagram showing the structure of a radio energy receiver in the first embodiment of the radio energy transmission system of the present invention
  • Figure 5 is a block diagram showing the structure of a wireless power transmitter in a second embodiment of the wireless power transmission system of the present invention
  • 5B is a structural block diagram of a wireless power receiver in a second embodiment of the wireless power transmission system of the present invention
  • Figure 6 is a waveform diagram of a sinusoidal unidirectional pulse voltage in the present invention.
  • the flow of the first embodiment of the radio energy transmission method of the present invention includes:
  • Step S101 The radio energy receiver converts the magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling.
  • Step S102 The radio energy receiver converts the high frequency alternating current into a direct current whose voltage is a sinusoidal one-way pulse voltage.
  • Fig. 6 The waveform of the above sinusoidal unidirectional pulse voltage is shown in Fig. 6, which is also called McDonald's wave.
  • the sinusoidal unidirectional pulse voltage has an effective value of 220V and a frequency of 100 Hz.
  • Step S103 The radio energy receiver outputs the direct current of the voltage as a sinusoidal one-way pulse voltage to the electrical load.
  • the kitchen appliances that usually have the power cord are powered by the mains (220V/50HZ AC point), and the power received by the radio receiver is high-frequency AC. If the power supply mode of the kitchen electrical equipment with the traditional power cord is adopted, the high-frequency alternating current needs to be first converted into direct current, and then converted into the main power. Since the power transmitted by the system is too large, the rectification and filtering circuit and the inverter circuit are in a volume. It needs to be done very much, and the heat dissipation effect is not good. It is difficult to assemble these circuit modules into kitchen appliances.
  • One of the key points of the present invention is the use of a sinusoidal unidirectional pulse voltage.
  • the high-frequency alternating current is converted into a direct current with a sinusoidal unidirectional pulse voltage, which is directly transmitted to the electrical load, and does not require an inverter process, which can greatly reduce the volume of the circuit module at the receiving end, and the heat dissipation performance of the system is greatly improved, and the high power can be satisfied.
  • the above voltage is a sinusoidal unidirectional pulse voltage of DC power as standard power Yes, to realize the universal use of radio energy receivers on different kitchen appliances.
  • the above-mentioned voltage is a sinusoidal unidirectional pulse voltage DC power for the three basic types of kitchen electrical load, namely resistive load, inductive load and hybrid load, can be applied.
  • the flow of the second embodiment of the radio energy transmission method of the present invention includes:
  • Step S201 The radio energy transmitter filters out high frequency interference clutter in the input power frequency alternating current.
  • Step S202 The radio energy transmitter rectifies and filters the power frequency alternating current that filters out the high frequency interference clutter to obtain direct current.
  • Step S203 The radio energy transmitter inverts the rectified and filtered DC power into an alternating current.
  • Step S205 The radio energy receiver converts the magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling.
  • Step S206 The radio energy receiver converts the high frequency alternating current into a direct current whose voltage is a sinusoidal one-way pulse voltage.
  • Step S207 The radio energy receiver outputs the direct current of the voltage as a sinusoidal one-way pulse voltage to the electrical load.
  • the purpose of the wireless energy transmitter to transmit power to the wireless power receiver is achieved.
  • the invention adopts measures for intelligently adjusting the transmission power of the radio energy transmitter for different working states of different electrical loads and electrical loads.
  • a flow of an embodiment of the method for intelligently adjusting transmit power in the present invention includes - Step S301:
  • the wireless power receiver receives the working state information of the electrical load.
  • the above operational status information includes, but is not limited to, voltage, current, and power information of the electrical load.
  • Step S302 The radio energy receiver processes the working state information to obtain working state data.
  • the above working state data is a digital signal converted into an analog signal of the working state information, which is convenient for transmission.
  • Step S303 The wireless power receiver transmits a wireless signal to the wireless power transmitter according to the working state data.
  • Step S304 The wireless power transmitter receives the wireless signal.
  • Step S305 The radio energy transmitter identifies the working state information of the electrical load according to the wireless signal, and intelligently adjusts the transmitting power according to the working state information.
  • the working state of the electrical load can be known in time, and then the measures for intelligently adjusting the transmitting power are taken, thereby protecting the safety of the electrical load from being damaged by the influence of high voltage, etc.;
  • the transmit power is intelligently adjusted to avoid unnecessary power consumption.
  • the present invention also provides a radio energy transmission system.
  • a radio energy receiver in a first embodiment of the radio energy transmission system of the present invention includes: a radio energy transmitter (not shown) and a radio energy receiver 400.
  • the wireless power receiver 400 includes a receiving coil 401, a rectifying and filtering circuit 402, and a power bus interface 403.
  • a receiving coil 401 configured to convert magnetic energy received from the wireless energy transmitter into high frequency alternating current by magnetic field coupling; a rectifying and filtering circuit 402, configured to convert the high frequency alternating current into a direct current with a voltage of a sinusoidal one-way pulse voltage;
  • the bus interface 403 is configured to output the DC power of the voltage as a sinusoidal one-way pulse voltage to the electrical load.
  • the power bus interface 403 includes a power positive interface and a power negative interface. Standardized power bus interface 403 transmits a standardized voltage to a sinusoidal unidirectional pulse voltage The direct current, the universal realization of the wireless energy receiver on different kitchen appliances.
  • the radio energy transmitter 500A includes an EMI filter circuit 501 for filtering high frequency interference clutter in the input power frequency alternating current; and a rectification filter circuit 502 for filtering
  • the power frequency alternating current of the high frequency interference clutter is rectified and filtered to obtain a direct current
  • the inverter circuit 503 is configured to invert the direct current obtained by the rectification and filtering into an alternating current
  • the transmitting coil 504 is configured to convert the alternating current into the magnetic energy form. Transmitted to the radio energy receiver.
  • the signal wireless receiving circuit 505 is further configured to receive the wireless signal
  • the transmitting end control circuit 506 is configured to identify the working state information of the electrical load according to the wireless signal, and intelligently adjust the transmitting power according to the working state information. .
  • the radio energy receiver 500B of the second embodiment of the present invention includes: a receiving coil 507 for converting magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling; and a rectifying and filtering circuit 508 for The high-frequency alternating current is converted into a direct current whose voltage is a sinusoidal one-way pulse voltage; and a power bus interface 509 is used for transmitting the direct current of the above-mentioned voltage to a sinusoidal one-way pulse voltage to the electrical load.
  • the power bus interface 509 includes a power positive interface and a power negative interface.
  • the standardized power bus interface 509 transmits a standardized DC voltage with a sinusoidal unidirectional pulse voltage to achieve universal use of the radio energy receiver on different kitchen appliances.
  • the utility model further comprises: a signal bus interface 510, which is a universal serial port circuit, comprising a data line interface, a power line and a ground line, wherein the data line interface is used for receiving working state information of the electrical load; and the receiving end control circuit 511 is configured to process the above
  • the working status information obtains the working status data;
  • the signal wireless transmitting circuit 512 is configured to send the wireless signal to the wireless power transmitter according to the working status data, so that the wireless power transmitter intelligently adjusts the transmitting power according to the wireless signal.
  • the process of intelligently adjusting the transmit power involved by the above signal bus interface 510 is as follows:
  • the data line interface of the signal bus interface 510 of the wireless power receiver 500B receives the working state information (including information such as voltage, current, and power) of the electrical load to the receiving end control circuit 511;
  • the receiving end control circuit 511 receives the working state information, and Processing it into working state data, which is transmitted to the signal wireless transmitting circuit 512;
  • the signal wireless transmitting circuit 512 transmits a wireless signal to the signal wireless receiving circuit 505 of the wireless power transmitter 500A according to the above working state data;
  • the signal wireless receiving circuit 505 receives the wireless
  • the signal is sent to the transmitting end control circuit 506;
  • the transmitting end control circuit 506 identifies the working state information of the electrical load according to the wireless signal, and intelligently adjusts the transmitting power according to the working state information.
  • the standardized power bus interface 509 and the standardized signal bus interface 510 not only standardize the power supply mode of the wireless power transmission system to the electrical load, but also realize the universality of the wireless energy receiver on different kitchen electrical appliances.
  • the intelligent adjustment of the transmission power in real time can improve the flexibility of the wireless energy transmission technology, reduce the design cost, and facilitate the promotion of the wireless energy transmission technology in the kitchen electrical equipment.

Abstract

A method and system for wireless electric energy transmission. The method comprises: a wireless electric energy receiver converts by means of magnetic field coupling magnetic energy received from a wireless electric energy transmitter into a high frequency alternating current (S101); the wireless electric energy receiver converts the high frequency alternating current into a direct current of a sinusoidal unidirectional pulse voltage (S102); and, the wireless electric energy receiver transmits the direct current of the sinusoidal unidirectional pulse voltage to an electric appliance load (S103). The system comprises: the wireless electric energy receiver. The wireless electric energy receiver comprises: a receiving coil (401) used for converting by means of magnetic field coupling the magnetic energy received from the wireless electric energy transmitter into the high frequency alternating current; a rectifier filter circuit (401) used for converting the high frequency alternating current into the direct current of the sinusoidal unidirectional pulse voltage; and a power supply bus interface (403) used for transmitting the direct current of the sinusoidal unidirectional pulse voltage to the electric appliance load. The method and system for wireless electric energy transmission allow for implementation of universality of the wireless electric energy receiver on different kitchen electric appliances, thus achieving the goal of reduced design costs.

Description

无线电能传输方法及系统 技术领域 本发明涉及无线电能传输技术领域, 尤其涉及一种无线电能传输方法及系 统。 背景技术 传统的电器设备通常采用电源说线从插座取电, 这种供电模式在使用过程中 存在诸多安全隐患, 例如在厨房等有水的场景中很容易导致使用者触电, 并且 书  TECHNICAL FIELD The present invention relates to the field of radio energy transmission technologies, and in particular, to a radio energy transmission method and system. BACKGROUND OF THE INVENTION Conventional electrical equipment usually uses a power supply line to draw power from a socket. This power supply mode has many safety hazards during use, such as in a watery scene such as a kitchen, which can easily cause a user to get an electric shock, and the book
随着电器设备数量的增加, 大量的电器设备会导致电源线错综复杂, 不便于使 用。 针对上述问题, 目前已经提出了一些应用于厨房电器设备的无线电能传输 技术方案。 通过在橱柜中安装一个发射端装置把电能转化为磁能进行电能的无 线发射, 在电器设备内部集成一个无线电能接收模块(又称无线电能接收器), 通过将磁能转化为电能为厨房电器设备供电。 这些方案虽然可以实现厨房电器 设备的无线供电, 但是存在很多弊端。 比如, 厨房电器设备五花八门、 种类繁 多, 而目前的方案由于没有与厨房电器设备建立统一的通用标准化接口, 只能 针对每一种厨房电器设备进行无线电能接收模块的定制化设计, 设计成本大大 提高, 浪费了大量的人力、 物力和财力。 无线电能接收模块的通用性差, 也不 利用无线电能传输技术在厨房电器设备中的大力推广。 发明内容 本发明目的在于提供一种无线电能传输方法及系统, 通过通用标准化接口 实现无线电能接收器在不同的厨房电器设备上的通用, 达到降低设计成本, 并 利于无线电能传输技术在厨房电器设备中的大力推广的目的。 为实现本发明的目的本发明提供以下技术方案- 一种无线电能传输方法, 包括: As the number of electrical equipment increases, a large number of electrical equipment can cause the power cord to be intricate and inconvenient to use. In response to the above problems, some wireless energy transmission technology solutions for kitchen appliances have been proposed. By installing a transmitter device in the cabinet to convert electrical energy into magnetic energy for wireless transmission of electrical energy, a radio energy receiving module (also called a radio energy receiver) is integrated inside the electrical device, and the kitchen electrical equipment is powered by converting magnetic energy into electrical energy. . Although these solutions can achieve wireless power supply for kitchen appliances, there are many drawbacks. For example, kitchen appliances are various and varied, and the current scheme does not have a universal standardized interface with kitchen appliances. It can only be customized for each type of kitchen electrical equipment, and the design cost is greatly improved. , wasting a lot of manpower, material resources and financial resources. The radio-receiving module has poor versatility and does not utilize the power transmission technology to be widely promoted in kitchen appliances. SUMMARY OF THE INVENTION An object of the present invention is to provide a radio energy transmission method and system, which realizes universal use of a radio energy receiver on different kitchen appliances through a universal standardized interface, thereby reducing design cost and facilitating radio energy transmission technology in kitchen electrical equipment. The purpose of vigorous promotion. The present invention provides the following technical solution for achieving the object of the present invention - a radio energy transmission method, comprising:
无线电能接收器通过磁场耦合将从无线电能发射器接收到的磁能转化为高 频交流电;  The radio energy receiver converts magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling;
无线电能接收器将上述高频交流电转化为电压为正弦单向脉冲电压的直流 电;  The radio energy receiver converts the high frequency alternating current into a direct current whose voltage is a sinusoidal one-way pulse voltage;
无线电能接收器将上述电压为正弦单向脉冲电压的直流电输给电器负载。 优选地, 上述正弦单向脉冲电压的有效值为 220V, 频率为 100Hz。  The radio energy receiver outputs the DC power of the above voltage as a sinusoidal one-way pulse voltage to the electrical load. Preferably, the sinusoidal unidirectional pulse voltage has an effective value of 220V and a frequency of 100 Hz.
优选地, 上述方法还包括:  Preferably, the above method further includes:
无线电能接收器接收电器负载的工作状态信息;  The wireless power receiver receives the working state information of the electrical load;
无线电能接收器处理上述工作状态信息得到工作状态数据;  The radio energy receiver processes the above working state information to obtain working state data;
无线电能接收器根据上述工作状态数据发送无线信号给无线电能发射器, 以使无线电能发射器根据上述无线信号对发射功率进行智能调整。  The radio energy receiver transmits a wireless signal to the radio energy transmitter according to the above working state data, so that the radio energy transmitter intelligently adjusts the transmission power according to the wireless signal.
优选地, 上述无线电能发射器根据上述无线信号对发射功率进行智能调整 具体为:  Preferably, the wireless energy transmitter intelligently adjusts the transmit power according to the wireless signal, specifically:
无线电能发射器接收上述无线信号;  The wireless power transmitter receives the wireless signal;
无线电能发射器根据上述无线信号识别上述电器负载的工作状态信息, 并 根据上述工作状态信息对发射功率进行智能调整。  The radio energy transmitter identifies the working state information of the electrical load according to the wireless signal, and intelligently adjusts the transmitting power according to the working state information.
优选地, 无线电能接收器通过磁场耦合将从无线电能发射器接收到的磁能 转化为高频交流电之前还包括:  Preferably, before the radio energy receiver converts the magnetic energy received from the radio energy transmitter into the high frequency alternating current by magnetic field coupling, the radio energy receiver further includes:
无线电能发射器滤除输入的工频交流电中的高频干扰杂波;  The radio energy transmitter filters out high frequency interference clutter in the input power frequency alternating current;
无线电能发射器对滤除高频干扰杂波的工频交流电进行整流滤波得到直流 电; 无线电能发射器将上述整流滤波得到的直流电逆变成交流电; 无线电能发射器将上述逆变成的交流电以磁能形式发射给无线电能接收 器 The radio energy transmitter rectifies and filters the power frequency alternating current that filters out high frequency interference clutter to obtain direct current; The radio energy transmitter inverts the above-mentioned rectified and filtered direct current into alternating current; the radio energy transmitter transmits the above-mentioned inverted alternating current to the radio energy receiver in the form of magnetic energy.
一种无线电能传输系统, 包括: 无线电能发射器和无线电能接收器; 所述 无线电能接收器包括: 接收线圈、 整流滤波电路和电源总线接口;  A radio energy transmission system comprising: a radio energy transmitter and a radio energy receiver; the radio energy receiver comprising: a receiving coil, a rectifying and filtering circuit, and a power bus interface;
接收线圈, 用于通过磁场耦合将从无线电能发射器接收到的磁能转化为高 频交流电;  a receiving coil for converting magnetic energy received from the wireless energy transmitter into high frequency alternating current by magnetic field coupling;
整流滤波电路, 用于将上述高频交流电转化为电压为正弦单向脉冲电压的 直流电;  a rectifying and filtering circuit for converting the high-frequency alternating current into a direct current having a sinusoidal unidirectional pulse voltage;
电源总线接口, 用于将上述电压为正弦单向脉冲电压的直流电输给电器负 载。  A power bus interface for transmitting the DC power of the above voltage to a sinusoidal one-way pulse voltage to an electrical load.
优选地, 上述正弦单向脉冲电压的有效值为 220V, 频率为 100Hz。  Preferably, the sinusoidal unidirectional pulse voltage has an effective value of 220V and a frequency of 100 Hz.
优选地, 上述无线电能接收器还包括: 信号总线接口、 接收端控制电路和 信号无线发射电路;  Preferably, the above wireless energy receiver further comprises: a signal bus interface, a receiving end control circuit and a signal wireless transmitting circuit;
信号总线接口为通用串口电路, 包括数据线接口、 电源线及地线; 其中数 据线接口, 用于接收电器负载的工作状态信息;  The signal bus interface is a universal serial port circuit, including a data line interface, a power line and a ground line; wherein the data line interface is used for receiving working status information of the electrical load;
接收端控制电路, 用于处理上述工作状态信息得到工作状态数据; 信号无线发射电路, 用于根据上述工作状态数据发送无线信号给无线电能 发射器, 以使无线电能发射器根据上述无线信号对发射功率进行智能调整。  a receiving end control circuit, configured to process the working state information to obtain working state data; a signal wireless transmitting circuit, configured to send a wireless signal to the wireless energy transmitter according to the working state data, so that the wireless energy transmitter transmits according to the wireless signal pair The power is intelligently adjusted.
优选地, 无线电能发射器包括: 信号无线接收电路和发射端控制电路; 信号无线接收电路, 用于接收所述无线信号;  Preferably, the radio energy transmitter comprises: a signal wireless receiving circuit and a transmitting end control circuit; and a signal wireless receiving circuit, configured to receive the wireless signal;
发射端控制电路, 用于根据上述无线信号识别上述电器负载的工作状态信 息, 并根据上述工作状态信息对发射功率进行智能调整。 优选地, 无线电能发射器还包括: EMI滤波电路、 整流滤波电路、 逆变电 路和发射线圈; The transmitting end control circuit is configured to identify the working state information of the electrical load according to the wireless signal, and intelligently adjust the transmitting power according to the working state information. Preferably, the radio energy transmitter further includes: an EMI filter circuit, a rectification filter circuit, an inverter circuit, and a transmitting coil;
EMI滤波电路, 用于滤除输入的工频交流电中的高频干扰杂波;  An EMI filter circuit for filtering high frequency interference clutter in the input power frequency alternating current;
整流滤波电路, 用于对滤除高频干扰杂波的工频交流电进行整流滤波得到 直流电;  a rectifying and filtering circuit for rectifying and filtering a power frequency alternating current that filters out high frequency interference clutter to obtain direct current;
逆变电路, 用于将上述整流滤波得到的直流电逆变成交流电;  An inverter circuit, configured to invert the DC power obtained by the above rectification and filtering into an alternating current;
发射线圈, 用于将上述逆变成的交流电以磁能形式发射给无线电能接收 由以上技术方案可以看出, 本发明的有益效果为: 将高频交流电转化为电 压为正弦单向脉冲电压的直流电, 直接输给电器负载, 上述电压为正弦单向脉 冲电压的直流电作为标准电能, 由标准化的电源总线接口传输, 实现无线电能 接收器在不同的厨房电器设备上的通用。 此外, 标准化的信号总线接口接收电 器负载的工作状态信息, 经处理成为工作状态数据, 据此发送无线信号, 以使 无线电能发射器根据上述无线信号对发射功率进行智能调整, 实现无线电能接 收器在不同功率的厨房电器设备上的通用。  A transmitting coil for transmitting the above-mentioned inverted alternating current in the form of magnetic energy to the radio energy receiving. As can be seen from the above technical solution, the beneficial effects of the present invention are: converting the high frequency alternating current into a direct current having a sinusoidal unidirectional pulse voltage Directly to the electrical load, the above-mentioned voltage is a sinusoidal unidirectional pulse voltage of DC power as standard power, transmitted by a standardized power bus interface, to achieve universal use of the wireless energy receiver on different kitchen appliances. In addition, the standardized signal bus interface receives the working state information of the electrical load, and is processed into working state data, according to which the wireless signal is transmitted, so that the wireless energy transmitter intelligently adjusts the transmitting power according to the wireless signal to implement the wireless energy receiver. Universal on kitchen appliances of different powers.
附图说明 DRAWINGS
图 1是本发明无线电能传输方法第一实施例的流程图;  1 is a flow chart of a first embodiment of a method for transmitting radio energy according to the present invention;
图 2是本发明无线电能传输方法第二实施例的流程图;  2 is a flow chart of a second embodiment of a method for transmitting radio energy according to the present invention;
图 3是本发明中对发射功率智能调整的方法一个实施例的流程图;  3 is a flow chart of an embodiment of a method for intelligently adjusting transmit power in the present invention;
- 图 4 是本发明无线电能传输系统第一实施例中无线电能接收器的结构框 图;  - Figure 4 is a block diagram showing the structure of a radio energy receiver in the first embodiment of the radio energy transmission system of the present invention;
图 5Α是本发明无线电能传输系统第二实施例中无线电能发射器的结构框 图; 图 5B 是本发明无线电能传输系统第二实施例中无线电能接收器的结构框 图; Figure 5 is a block diagram showing the structure of a wireless power transmitter in a second embodiment of the wireless power transmission system of the present invention; 5B is a structural block diagram of a wireless power receiver in a second embodiment of the wireless power transmission system of the present invention;
图 6是本发明中正弦单向脉冲电压的波形图。  Figure 6 is a waveform diagram of a sinusoidal unidirectional pulse voltage in the present invention.
具体实施方式 detailed description
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。  The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
请参考图 1, 本发明无线电能传输方法第一实施例的流程包括:  Referring to FIG. 1, the flow of the first embodiment of the radio energy transmission method of the present invention includes:
步骤 S101 : 无线电能接收器通过磁场耦合将从无线电能发射器接收到的磁 能转化为高频交流电。  Step S101: The radio energy receiver converts the magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling.
步骤 S102: 无线电能接收器将所述高频交流电转化为电压为正弦单向脉冲 电压的直流电。  Step S102: The radio energy receiver converts the high frequency alternating current into a direct current whose voltage is a sinusoidal one-way pulse voltage.
上述正弦单向脉冲电压的波形如图 6所示, 又称为麦当劳波。 作为优选, 上述正弦单向脉冲电压的有效值为 220V, 频率为 100Hz。  The waveform of the above sinusoidal unidirectional pulse voltage is shown in Fig. 6, which is also called McDonald's wave. Preferably, the sinusoidal unidirectional pulse voltage has an effective value of 220V and a frequency of 100 Hz.
步骤 S103 : 无线电能接收器将所述电压为正弦单向脉冲电压的直流电输给 电器负载。  Step S103: The radio energy receiver outputs the direct current of the voltage as a sinusoidal one-way pulse voltage to the electrical load.
通常有电源线的厨房电器设备都是采用市电(220V/50HZ交流点)来进行供 电, 而无线电能接收器接收过来的电能为高频交流电。 如果采用传统有电源线 的厨房电器设备的供电模式, 就需要将高频交流电先转化为直流电, 然后再逆 变成市电, 由于系统传输的功率太大, 整流滤波电路及逆变电路体积就需要做 得很大, 且散热效果不好, 很难将这些电路模块装配到厨房电器中。  The kitchen appliances that usually have the power cord are powered by the mains (220V/50HZ AC point), and the power received by the radio receiver is high-frequency AC. If the power supply mode of the kitchen electrical equipment with the traditional power cord is adopted, the high-frequency alternating current needs to be first converted into direct current, and then converted into the main power. Since the power transmitted by the system is too large, the rectification and filtering circuit and the inverter circuit are in a volume. It needs to be done very much, and the heat dissipation effect is not good. It is difficult to assemble these circuit modules into kitchen appliances.
本发明关键点之一在于釆用正弦单向脉冲电压。 将高频交流电转化为电压 为正弦单向脉冲电压的直流电, 直接输给电器负载, 不需要逆变过程, 这样可 以大大减少接收端电路模块的体积, 且系统散热性能大大提高, 能满足大功率 厨房电器设备的供电需求。 上述电压为正弦单向脉冲电压的直流电作为标准电 能, 实现无线电能接收器在不同的厨房电器设备上的通用。 上述电压为正弦单 向脉冲电压的直流电对厨房电器负载的三种基本类型, 即阻性负载、 感性负载 和混合型负载, 都能适用。 One of the key points of the present invention is the use of a sinusoidal unidirectional pulse voltage. The high-frequency alternating current is converted into a direct current with a sinusoidal unidirectional pulse voltage, which is directly transmitted to the electrical load, and does not require an inverter process, which can greatly reduce the volume of the circuit module at the receiving end, and the heat dissipation performance of the system is greatly improved, and the high power can be satisfied. Power supply requirements for kitchen appliances. The above voltage is a sinusoidal unidirectional pulse voltage of DC power as standard power Yes, to realize the universal use of radio energy receivers on different kitchen appliances. The above-mentioned voltage is a sinusoidal unidirectional pulse voltage DC power for the three basic types of kitchen electrical load, namely resistive load, inductive load and hybrid load, can be applied.
为了更详尽的解释本发明的技术方案, 请参考图 2, 本发明无线电能传输 方法第二实施例的流程包括:  In order to explain the technical solution of the present invention in more detail, referring to FIG. 2, the flow of the second embodiment of the radio energy transmission method of the present invention includes:
步骤 S201 : 无线电能发射器滤除输入的工频交流电中的高频干扰杂波。 步骤 S202: 无线电能发射器对滤除高频干扰杂波的工频交流电进行整流滤 波得到直流电。  Step S201: The radio energy transmitter filters out high frequency interference clutter in the input power frequency alternating current. Step S202: The radio energy transmitter rectifies and filters the power frequency alternating current that filters out the high frequency interference clutter to obtain direct current.
步骤 S203 : 无线电能发射器将所述整流滤波得到的直流电逆变成交流电。 步骤 S204: 无线电能发射器将所述逆变成的交流电以磁能形式发射给无线 电能接收器。  Step S203: The radio energy transmitter inverts the rectified and filtered DC power into an alternating current. Step S204: The radio energy transmitter transmits the inverted AC power to the wireless power receiver in the form of magnetic energy.
步骤 S205 : 无线电能接收器通过磁场耦合将从无线电能发射器接收到的磁 能转化为高频交流电。  Step S205: The radio energy receiver converts the magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling.
步骤 S206: 无线电能接收器将所述高频交流电转化为电压为正弦单向脉冲 电压的直流电。  Step S206: The radio energy receiver converts the high frequency alternating current into a direct current whose voltage is a sinusoidal one-way pulse voltage.
步骤 S207: 无线电能接收器将所述电压为正弦单向脉冲电压的直流电输给 电器负载。  Step S207: The radio energy receiver outputs the direct current of the voltage as a sinusoidal one-way pulse voltage to the electrical load.
通过上述步骤即实现了无线电能发射器向无线电能接收器发射电能的目 的。  Through the above steps, the purpose of the wireless energy transmitter to transmit power to the wireless power receiver is achieved.
本发明针对不同的电器负载及电器负载的不同工作状态, 采取对无线电能 发射器的发射功率进行智能调整的措施。  The invention adopts measures for intelligently adjusting the transmission power of the radio energy transmitter for different working states of different electrical loads and electrical loads.
请参考图 3, 本发明中对发射功率智能调整的方法一个实施例的流程包 括- 步骤 S301 : 无线电能接收器接收电器负载的工作状态信息。 Referring to FIG. 3, a flow of an embodiment of the method for intelligently adjusting transmit power in the present invention includes - Step S301: The wireless power receiver receives the working state information of the electrical load.
上述工作状态信息包括但不限于电器负载的电压、 电流和功率信息。  The above operational status information includes, but is not limited to, voltage, current, and power information of the electrical load.
步骤 S302: 无线电能接收器处理所述工作状态信息得到工作状态数据。 上述工作状态数据是由工作状态信息的模拟信号转换成的数字信号, 便于 传输。  Step S302: The radio energy receiver processes the working state information to obtain working state data. The above working state data is a digital signal converted into an analog signal of the working state information, which is convenient for transmission.
步骤 S303 : 无线电能接收器根据所述工作状态数据发送无线信号给所述无 线电能发射器。  Step S303: The wireless power receiver transmits a wireless signal to the wireless power transmitter according to the working state data.
步骤 S304: 无线电能发射器接收所述无线信号。  Step S304: The wireless power transmitter receives the wireless signal.
步骤 S305 : 无线电能发射器根据所述无线信号识别所述电器负载的工作状 态信息, 并根据所述工作状态信息对发射功率进行智能调整。  Step S305: The radio energy transmitter identifies the working state information of the electrical load according to the wireless signal, and intelligently adjusts the transmitting power according to the working state information.
通过上述步骤, 可以及时了解电器负载的工作状态, 然后采取对发射功率 进行智能调整的措施, 一方面保护了电器负载的安全, 免于受到高压等的影响 而发生损坏; 另一方面, 通过对发射功率进行智能调整, 避免不必要的电能消 耗。  Through the above steps, the working state of the electrical load can be known in time, and then the measures for intelligently adjusting the transmitting power are taken, thereby protecting the safety of the electrical load from being damaged by the influence of high voltage, etc.; The transmit power is intelligently adjusted to avoid unnecessary power consumption.
相应于本发明无线电能传输方法, 本发明还提供无线电能传输系统。  Corresponding to the radio energy transmission method of the present invention, the present invention also provides a radio energy transmission system.
请参考图 4, 本发明无线电能传输系统第一实施例中无线电能接收器包 括: 无线电能发射器(未示出)和无线电能接收器 400。 无线电能接收器 400包 括: 接收线圈 401、 整流滤波电路 402和电源总线接口 403。  Referring to Figure 4, a radio energy receiver in a first embodiment of the radio energy transmission system of the present invention includes: a radio energy transmitter (not shown) and a radio energy receiver 400. The wireless power receiver 400 includes a receiving coil 401, a rectifying and filtering circuit 402, and a power bus interface 403.
接收线圈 401, 用于通过磁场耦合将从无线电能发射器接收到的磁能转化 为高频交流电; 整流滤波电路 402, 用于将上述高频交流电转化为电压为正弦 单向脉冲电压的直流电; 电源总线接口 403, 用于将上述电压为正弦单向脉冲 电压的直流电输给电器负载。 其中电源总线接口 403包括电源正极接口和电源 负极接口。 标准化的电源总线接口 403 传输标准化的电压为正弦单向脉冲电压 的直流电, 实现无线电能接收器在不同的厨房电器设备上的通用。 a receiving coil 401, configured to convert magnetic energy received from the wireless energy transmitter into high frequency alternating current by magnetic field coupling; a rectifying and filtering circuit 402, configured to convert the high frequency alternating current into a direct current with a voltage of a sinusoidal one-way pulse voltage; The bus interface 403 is configured to output the DC power of the voltage as a sinusoidal one-way pulse voltage to the electrical load. The power bus interface 403 includes a power positive interface and a power negative interface. Standardized power bus interface 403 transmits a standardized voltage to a sinusoidal unidirectional pulse voltage The direct current, the universal realization of the wireless energy receiver on different kitchen appliances.
为了更详尽的解释本发明的无线电能传输系统, 请参考图 5A和图 5B。 本发明无线电能传输系统第二实施例中无线电能发射器 500A包括- EMI 滤波电路 501, 用于滤除输入的工频交流电中的高频干扰杂波; 整流 滤波电路 502, 用于对滤除高频干扰杂波的工频交流电进行整流滤波得到直流 电; 逆变电路 503, 用于将上述整流滤波得到的直流电逆变成交流电; 发射线 圈 504, 用于将上述逆变成的交流电以磁能形式发射给无线电能接收器。 还包 括- 信号无线接收电路 505, 用于接收所述无线信号; 发射端控制电路 506, 用 于根据上述无线信号识别上述电器负载的工作状态信息, 并根据上述工作状态 信息对发射功率进行智能调整。  For a more detailed explanation of the wireless power transmission system of the present invention, please refer to Figs. 5A and 5B. In the second embodiment of the radio energy transmission system of the present invention, the radio energy transmitter 500A includes an EMI filter circuit 501 for filtering high frequency interference clutter in the input power frequency alternating current; and a rectification filter circuit 502 for filtering The power frequency alternating current of the high frequency interference clutter is rectified and filtered to obtain a direct current; the inverter circuit 503 is configured to invert the direct current obtained by the rectification and filtering into an alternating current; the transmitting coil 504 is configured to convert the alternating current into the magnetic energy form. Transmitted to the radio energy receiver. The signal wireless receiving circuit 505 is further configured to receive the wireless signal, and the transmitting end control circuit 506 is configured to identify the working state information of the electrical load according to the wireless signal, and intelligently adjust the transmitting power according to the working state information. .
本发明无线电能传输系统第二实施例中无线电能接收器 500B包括: 接收线圈 507, 用于通过磁场耦合将从无线电能发射器接收到的磁能转化 为高频交流电; 整流滤波电路 508, 用于将上述高频交流电转化为电压为正弦 单向脉冲电压的直流电; 电源总线接口 509, 用于将上述电压为正弦单向脉冲 电压的直流电输给电器负载.。 其中电源总线接口 509包括电源正极接口和电源 负极接口。 标准化的电源总线接口 509传输标准化的电压为正弦单向脉冲电压 的直流电, 实现无线电能接收器在不同的厨房电器设备上的通用。 还包括: 信 号总线接口 510, 它是通用串口电路, 包括数据线接口、 电源线及地线, 其中 数据线接口, 用于接收电器负载的工作状态信息; 接收端控制电路 511, 用于 处理上述工作状态信息得到工作状态数据; 信号无线发射电路 512, 用于根据 上述工作状态数据发送无线信号给无线电能发射器, 以使无线电能发射器根据 上述无线信号对发射功率进行智能调整。  The radio energy receiver 500B of the second embodiment of the present invention includes: a receiving coil 507 for converting magnetic energy received from the radio energy transmitter into high frequency alternating current by magnetic field coupling; and a rectifying and filtering circuit 508 for The high-frequency alternating current is converted into a direct current whose voltage is a sinusoidal one-way pulse voltage; and a power bus interface 509 is used for transmitting the direct current of the above-mentioned voltage to a sinusoidal one-way pulse voltage to the electrical load. The power bus interface 509 includes a power positive interface and a power negative interface. The standardized power bus interface 509 transmits a standardized DC voltage with a sinusoidal unidirectional pulse voltage to achieve universal use of the radio energy receiver on different kitchen appliances. The utility model further comprises: a signal bus interface 510, which is a universal serial port circuit, comprising a data line interface, a power line and a ground line, wherein the data line interface is used for receiving working state information of the electrical load; and the receiving end control circuit 511 is configured to process the above The working status information obtains the working status data; the signal wireless transmitting circuit 512 is configured to send the wireless signal to the wireless power transmitter according to the working status data, so that the wireless power transmitter intelligently adjusts the transmitting power according to the wireless signal.
上述信号总线接口 510参与的对发射功率进行智能调整的过程具体如下: 无线电能接收器 500B的信号总线接口 510的数据线接口接收电器负载的工作状 态信息(包括电压、 电流和功率等信息), 给接收端控制电路 511 ; 接收端控制 电路 511 接收工作状态信息, 并将其处理成为工作状态数据, 传输给信号无线 发射电路 512; 信号无线发射电路 512根据上述工作状态数据发送无线信号给无 线电能发射器 500A的信号无线接收电路 505 ; 信号无线接收电路 505接收上述 无线信号给发射端控制电路 506; 发射端控制电路 506根据上述无线信号识别上 述电器负载的工作状态信息, 并根据上述工作状态信息对发射功率进行智能调 整。 The process of intelligently adjusting the transmit power involved by the above signal bus interface 510 is as follows: The data line interface of the signal bus interface 510 of the wireless power receiver 500B receives the working state information (including information such as voltage, current, and power) of the electrical load to the receiving end control circuit 511; the receiving end control circuit 511 receives the working state information, and Processing it into working state data, which is transmitted to the signal wireless transmitting circuit 512; the signal wireless transmitting circuit 512 transmits a wireless signal to the signal wireless receiving circuit 505 of the wireless power transmitter 500A according to the above working state data; the signal wireless receiving circuit 505 receives the wireless The signal is sent to the transmitting end control circuit 506; the transmitting end control circuit 506 identifies the working state information of the electrical load according to the wireless signal, and intelligently adjusts the transmitting power according to the working state information.
由以上技术方案可以看出, 标准化的电源总线接口 509和标准化的信号总 线接口 510不但使无线电能传输系统向电器负载的供电模式标准化, 实现无线 电能接收器在不同厨房电器设备上的通用, 还能实时地对发射功率进行智能调 整, 提高了无线电能传输技术的灵活性, 降低设计成本, 并利于无线电能传输 技术在厨房电器设备中的大力推广的目的。  It can be seen from the above technical solution that the standardized power bus interface 509 and the standardized signal bus interface 510 not only standardize the power supply mode of the wireless power transmission system to the electrical load, but also realize the universality of the wireless energy receiver on different kitchen electrical appliances. The intelligent adjustment of the transmission power in real time can improve the flexibility of the wireless energy transmission technology, reduce the design cost, and facilitate the promotion of the wireless energy transmission technology in the kitchen electrical equipment.
以上结合具体实施例描述了本发明的技术原理。 这些描述只是为了解释本 发明的原理, 而不能以任何方式解释为对本发明保护范围的限制。 基于此处的 解释, 本领域的技术人员不需要付出创造性的劳动即可联想到本发明的其它具 体实施方式, 这些方式都将落入本发明的保护范围之内。  The technical principles of the present invention have been described above in connection with specific embodiments. The descriptions are only intended to explain the principles of the invention and are not to be construed as limiting the scope of the invention. Based on the explanation herein, those skilled in the art will be able to contemplate other specific embodiments of the present invention without departing from the scope of the invention.

Claims

权 利 要 求 书 claims
1、 一种无线电能传输方法, 其特征在于, 包括: 1. A wireless power transmission method, characterized by including:
无线电能接收器通过磁场耦合将从无线电能发射器接收到的磁能转化为高 频交流电; The wireless power receiver converts the magnetic energy received from the wireless power transmitter into high-frequency alternating current through magnetic field coupling;
无线电能接收器将所述高频交流电转化为电压为正弦单向脉冲电压的直流 电; The wireless power receiver converts the high-frequency alternating current into direct current whose voltage is a sinusoidal unidirectional pulse voltage;
无线电能接收器将所述电压为正弦单向脉冲电压的直流电输给电器负载。 The wireless power receiver supplies the direct current whose voltage is a sinusoidal unidirectional pulse voltage to the electrical load.
2、 根据权利要求 1 所述的无线电能传输方法, 其特征在于, 所述正弦单 向脉冲电压的有效值为 220V, 频率为 100Hz。 2. The wireless power transmission method according to claim 1, wherein the effective value of the sinusoidal unidirectional pulse voltage is 220V and the frequency is 100Hz.
3、 根据权利要求 1 所述的无线电能传输方法, 其特征在于, 所述方法还 包括: 3. The wireless power transmission method according to claim 1, characterized in that the method further includes:
无线电能接收器接收电器负载的工作状态信息; The wireless power receiver receives the working status information of the electrical load;
无线电能接收器处理所述工作状态信息得到工作状态数据; The wireless power receiver processes the working status information to obtain working status data;
无线电能接收器根据所述工作状态数据发送无线信号给所述无线电能发射 器, 以使所述无线电能发射器根据所述无线信号对发射功率进行智能调整。 The wireless power receiver sends a wireless signal to the wireless power transmitter according to the working status data, so that the wireless power transmitter intelligently adjusts the transmission power according to the wireless signal.
4、 根据权利要求 3 所述的无线电能传输方法, 其特征在于, 所述无线电 能发射器根据所述无线信号对发射功率进行智能调整具体为: 4. The wireless power transmission method according to claim 3, wherein the wireless power transmitter intelligently adjusts the transmission power according to the wireless signal as follows:
无线电能发射器接收所述无线信号; A wireless power transmitter receives the wireless signal;
无线电能发射器根据所述无线信号识别所述电器负载的工作状态信息, 并 根据所述工作状态信息对发射功率进行智能调整。 The wireless power transmitter identifies the working status information of the electrical load based on the wireless signal, and intelligently adjusts the transmission power based on the working status information.
5、 根据权利要求 1 所述的无线电能传输方法, 其特征在于, 无线电能接 收器通过磁场耦合将从无线电能发射器接收到的磁能转化为高频交流电之前还 包括: 5. The wireless power transmission method according to claim 1, characterized in that, before the wireless power receiver converts the magnetic energy received from the wireless power transmitter into high-frequency alternating current through magnetic field coupling, it also includes:
无线电能发射器滤除输入的工频交流电中的高频干扰杂波; 无线电能发射器对滤除高频干扰杂波的工频交流电进行整流滤波得到直流 电; The wireless power transmitter filters out high-frequency interference clutter in the input power frequency alternating current; The wireless power transmitter rectifies and filters the power frequency alternating current that filters out high-frequency interference clutter to obtain direct current;
无线电能发射器将所述整流滤波得到的直流电逆变成交流电; The wireless power transmitter inverts the rectified and filtered direct current into alternating current;
无线电能发射器将所述逆变成的交流电以磁能形式发射给无线电能接收 器。 The wireless power transmitter transmits the inverted alternating current to the wireless power receiver in the form of magnetic energy.
6、 一种无线电能传输系统, 其特征在于, 包括: 无线电能发射器和无线 电能接收器; 所述无线电能接收器包括: 接收线圈、 整流滤波电路和电源总线 接口; 6. A wireless power transmission system, characterized in that it includes: a wireless power transmitter and a wireless power receiver; the wireless power receiver includes: a receiving coil, a rectifier filter circuit and a power bus interface;
所述接收线圈, 用于通过磁场耦合将从无线电能发射器接收到的磁能转化 为高频交流电; The receiving coil is used to convert the magnetic energy received from the wireless power transmitter into high-frequency alternating current through magnetic field coupling;
所述整流滤波电路, 用于将所述高频交流电转化为电压为正弦单向脉冲电 压的直流电; The rectifier and filter circuit is used to convert the high-frequency alternating current into a direct current whose voltage is a sinusoidal unidirectional pulse voltage;
所述电源总线接口, 用于将所述电压为正弦单向脉冲电压的直流电输给电 器负载。 The power bus interface is used to transmit DC power whose voltage is a sinusoidal unidirectional pulse voltage to the power supply load.
7、 根据权利要求 6 所述的无线电能传输系统, 其特征在于, 所述正弦单 向脉冲电压的有效值为 220V, 频率为 100Hz。 7. The wireless power transmission system according to claim 6, wherein the effective value of the sinusoidal unidirectional pulse voltage is 220V and the frequency is 100Hz.
8、 根据权利要求 6 所述的无线电能传输系统, 其特征在于, 所述无线电 能接收器还包括: 信号总线接口、 接收端控制电路和信号无线发射电路; 8. The wireless power transmission system according to claim 6, wherein the wireless power receiver further includes: a signal bus interface, a receiving end control circuit and a signal wireless transmitting circuit;
所述信号总线接口为通用串口电路, 包括数据线接口、 电源线及地线; 所 述数据线接口, 用于接收电器负载的工作状态信息; The signal bus interface is a universal serial port circuit, including a data line interface, a power line and a ground wire; the data line interface is used to receive working status information of the electrical load;
所述接收端控制电路, 用于处理所述工作状态信息得到工作状态数据; 所述信号无线发射电路, 用于根据所述工作状态数据发送无线信号给所述 无线电能发射器, 以使所述无线电能发射器根据所述无线信号对发射功率进行 智能调整。 The receiving end control circuit is used to process the working status information to obtain working status data; the signal wireless transmission circuit is used to send a wireless signal to the wireless power transmitter according to the working status data, so that the The wireless power transmitter adjusts the transmit power according to the wireless signal. Smart adjustment.
9、 根据权利要求 8 所述的无线电能传输系统, 其特征在于, 所述无线电 能发射器包括: 信号无线接收电路和发射端控制电路; 9. The wireless power transmission system according to claim 8, characterized in that the wireless power transmitter includes: a signal wireless receiving circuit and a transmitter control circuit;
所述信号无线接收电路, 用于接收所述无线信号; The signal wireless receiving circuit is used to receive the wireless signal;
所述发射端控制电路, 用于根据所述无线信号识别所述电器负载的工作状 态信息, 并根据所述工作状态信息对发射功率进行智能调整。 The transmitter control circuit is used to identify the working status information of the electrical load according to the wireless signal, and intelligently adjust the transmission power according to the working status information.
10、 根据权利要求 6所述的无线电能传输系统, 其特征在于, 所述无线电 能发射器还包括: EMI滤波电路、 整流滤波电路、 逆变电路和发射线圈; 10. The wireless power transmission system according to claim 6, wherein the wireless power transmitter further includes: an EMI filter circuit, a rectifier filter circuit, an inverter circuit and a transmitting coil;
所述 EMI滤波电路, 用于滤除输入的工频交流电中的高频干扰杂波 ·' 所述整流滤波电路, 用于对滤除高频干扰杂波的工频交流电进行整流滤波 得到直流电; The EMI filter circuit is used to filter out high-frequency interference clutter in the input power-frequency alternating current. The rectifier filter circuit is used to rectify and filter the power-frequency alternating current that filters out high-frequency interference clutter to obtain direct current;
所述逆变电路, 用于将所述整流滤波得到的直流电逆变成交流电; 所述发射线圈, 用于将所述逆变成的交流电以磁能形式发射给无线电能接 The inverter circuit is used to invert the rectified and filtered direct current into alternating current; the transmitting coil is used to transmit the inverted alternating current to the wireless power interface in the form of magnetic energy.
PCT/CN2013/083315 2013-04-28 2013-09-11 Method and system for wireless electric energy transmission WO2014176856A1 (en)

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