WO2011160405A1 - 电子装置及其供电方法以及无线供电系统 - Google Patents

电子装置及其供电方法以及无线供电系统 Download PDF

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Publication number
WO2011160405A1
WO2011160405A1 PCT/CN2010/080161 CN2010080161W WO2011160405A1 WO 2011160405 A1 WO2011160405 A1 WO 2011160405A1 CN 2010080161 W CN2010080161 W CN 2010080161W WO 2011160405 A1 WO2011160405 A1 WO 2011160405A1
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WO
WIPO (PCT)
Prior art keywords
electronic device
wireless power
module
power supply
wired
Prior art date
Application number
PCT/CN2010/080161
Other languages
English (en)
French (fr)
Inventor
喻子达
白冰
迟荣红
李金良
Original Assignee
海尔集团公司
青岛海尔电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海尔集团公司, 青岛海尔电子有限公司 filed Critical 海尔集团公司
Priority to EP10853543.6A priority Critical patent/EP2587625A4/en
Priority to US13/701,171 priority patent/US9356476B2/en
Priority to JP2013515668A priority patent/JP5513682B2/ja
Publication of WO2011160405A1 publication Critical patent/WO2011160405A1/zh

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Classifications

    • 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
    • H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
    • 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
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads

Definitions

  • the present invention relates to wireless powering technology, and more particularly to an electronic device powered by wireless power, a method of powering the electronic device, and a wireless powering system to which the electronic device is applied. Background technique
  • Home electronics such as televisions that draw power from a power source typically need to be accessed by direct contact between conductors. Therefore, when the electronic device uses a power source, for example, an AC power source, a power cord needs to be connected to the power source. However, due to the limitation of the power cord, the placement position of the home electronic device such as a television is limited, which brings a great Inconvenience.
  • a wireless power supply technology using magnetic coupling resonance for power transmission which uses non-radiative magnetic coupling, that is, two resonant objects of the same frequency to generate strong mutual coupling, and a single layer coil is used to form a common
  • the resonant circuit does not emit electromagnetic waves, reducing energy waste.
  • the efficiency is about 40% when the transmission is 2 meters, and the efficiency can be as high as about 90% when the distance is 1 meter. It will be a widely used wireless power supply technology. .
  • Another object of the present invention is to provide a wireless power supply system suitable for use in an electronic device having a switchable wireless power supply mode and a wired power supply mode.
  • An electronic device includes: a wired power receiving module, a wireless power receiving module, and a switch.
  • the wired power receiving module is wired and externally The power source establishes a connection to provide an operating voltage of the electronic device;
  • the wireless power receiving module provides an operating voltage of the electronic device by receiving wireless power from the external wireless power transmitting device;
  • the switch is electrically coupled to the wired power receiving module and the wireless power receiving module, Switching between the wired power receiving module and the wireless power receiving module to supply the operating voltage.
  • the switch determines a wired power receiving module to supply an operating voltage to the electronic device when the wired power receiving module establishes a wired connection with the external power source, and the wired power receiving module and the external power source are not established.
  • the wireless power receiving module is determined to supply the operating voltage to the electronic device when the cable is connected.
  • the switch includes a normally closed contact and a normally open contact, wherein the normally closed contact is electrically coupled to the wireless power receiving module, and the normally open contact is electrically coupled to the wired power receiving module.
  • the switch is, for example, a relay, but the invention is not limited thereto.
  • the wired power receiving module includes an AC input terminal and a power line; wherein the AC input terminal is electrically coupled to the switch, and the power line is configured to establish a wired connection between the AC input terminal and the external power source.
  • the power cord may be pluggably disposed on the electronic device or may be non-pluggable on the electronic device.
  • the wireless power receiving module includes a wireless power receiving conversion unit, a detection control unit, and a wireless signal transceiving unit.
  • the wireless power receiving and converting unit is electrically coupled to the switching switch, and receives the wireless power. Performing electrical parameter adjustment on the received wireless power to output the above working voltage to the switch; the detection control unit detects whether the wired power receiving module has established a wired connection with the external power source; the wireless signal transceiver unit receives the control of the detection control unit, and When the detection control unit detects that the wired power receiving module has established a wired connection with the external power source, it transmits a close wireless power transmission request to the external wireless power transmitting device.
  • the wireless power receiving module forms a magnetic coupling resonance with the external wireless power transmitting device to receive the wireless power.
  • the electronic device further includes a status display system electrically connected to the switch and electrically connected to the internal functional circuit of the electronic device, and the electronic device operates in the wired power supply.
  • the status display system displays the current power state of the electronic device.
  • the status display system includes a status detection module, a micro control unit, a data storage module, a data processing module, and a display module, wherein the status detection module
  • the data storage module, the data processing module and the display module are electrically connected to the micro control unit, and the data processing module is also electrically connected to the data storage module and the display module respectively.
  • one end of the state detecting module is electrically connected to the switch, and the other end is electrically connected to the micro control unit, and the state detecting module receives the switch state signal from the switch, and the switch state is The signal is transmitted to the micro control unit, and the micro control unit processes the switch status signal to output a control signal to the data processing module.
  • the data storage module is electrically connected to the micro control unit for storing preset state information.
  • the data processing module is electrically connected to the micro control unit, the data storage module, and the display module, and the data processing module receives the control signal output by the micro control unit, and retrieves the data storage module. Matching status information.
  • the display module is respectively connected to the micro control unit and the data processing module, and is configured to display status information transmitted in the data processing module.
  • a wireless power supply system is applicable to an electronic device having a switchable wireless power supply mode and a wired power supply mode.
  • a wireless power transmitting system wireless power transmitting device and a wireless power receiving device provided separately from the wireless power transmitting device.
  • the wireless power receiving device includes a wireless power receiving conversion unit, a detection control unit, and a wireless signal transceiving unit; the wireless power receiving and converting unit receives (for example, receives by a magnetic coupling resonance) a high frequency AC signal from the wireless power transmitting device and is high The frequency AC signal is adjusted by electrical parameters to provide an operating voltage required for the electronic device to operate in the wireless power supply mode; the detection control unit is configured to detect whether the electronic device operates in a wired power supply mode; the wireless signal transceiver unit is controlled by the detection control unit, and The wireless power transmission transmission request is transmitted to the wireless power transmitting device when it is detected that the electronic device operates in the wired power supply mode to notify the wireless power transmitting device to stop transmitting the wireless power to the wireless power receiving conversion unit.
  • the wireless power receiving and converting unit receives (for example, receives by a magnetic coupling resonance) a high frequency AC signal from the wireless power transmitting device and is high The frequency AC signal is adjusted by electrical parameters to provide an operating voltage required for the electronic device to
  • the wireless power transmitting device includes a main controller, a wireless power generating transmitting unit, and a second wireless signal transmitting and receiving unit; the wireless power generating transmitting unit receives the control of the main controller to generate a high frequency alternating current according to the DC voltage.
  • the signal is sent out wirelessly to the wireless power receiving and transforming unit; the second wireless signal transmitting and receiving unit is in electrical communication with the main controller, and receives the closed wireless power transmission request and transmits the wireless power transmission request to the main controller.
  • the wireless power supply system further includes a power supply device for The AC input voltage provides the DC voltage and the operating voltage of the main controller and the wireless power transmitting unit.
  • a power supply method for an electronic device is applicable to an electronic device having a switchable wireless power supply module and a wired power supply module.
  • the power supply method of the electronic device includes the steps of: the preset electronic device receiving a power supply voltage from the wireless power supply module; and cutting off the wireless power supply module when the electronic device starts receiving the power supply voltage from the wired power supply module.
  • the method before the step of cutting off the wireless power supply module when the electronic device starts receiving the power voltage from the wired power supply module, the method further includes the steps of: detecting whether the electronic device starts receiving power from the wired power supply module. Voltage.
  • the method after detecting the step of receiving the power voltage from the wired power supply module, the method further includes the steps of: after detecting that the electronic device receives the power voltage from the wired power supply module, the detection result is wireless. The method is sent outside the electronic device.
  • the embodiment of the present invention can flexibly select a wireless power receiving module (wireless power receiving device) adapted to receive wireless power in an electronic device and switch a wireless power supply mode and a wired power supply mode of the electronic device by setting a switch.
  • the power supply mode of the electronic device greatly improves the convenience of use.
  • the external wireless power transmitting device can stop transmitting wireless power to protect the external wireless power transmitting device and/or save energy.
  • the status display system it can be displayed whether the current power supply status of the electronic device is wired or wireless, so that the user can intuitively and conveniently understand the power supply status of the electronic device, which increases convenience and practicability.
  • FIG. 1 is a block diagram showing the structure of an electronic device in accordance with an embodiment of the present invention.
  • FIG. 1 is a structural diagram of a wireless power supply system related to an embodiment of the present invention.
  • 3 is a flow chart of a power supply method related to an embodiment of the present invention.
  • FIG. 4 is a flow chart of a power supply method in accordance with another embodiment of the present invention.
  • Fig. 5 is a block diagram showing the structure of a state display system of an electronic device according to still another embodiment of the present invention.
  • the electronic device 10 includes a wired power receiving module 12, a wireless power receiving module 14, and a changeover switch 16.
  • the wired power receiving module 12 is electrically connected to the wireless power receiving module 14
  • the wired power receiving module 12 and the wireless power receiving module 14 are electrically connected to the switch 16
  • the switch 16 is connected to the internal function of the electronic device 10 .
  • Circuit such as audio and video processing circuits, etc.
  • a relay is used as the changeover switch 16.
  • the changeover switch 16 includes a normally open contact 1 and a normally closed contact 2.
  • the electronic device 10 in this embodiment is, for example, a home appliance such as a television set, but is not intended to limit the present invention.
  • the wired power receiving module 12 includes an AC input terminal 121 and a power line 123.
  • the AC input terminal 121 is electrically coupled to the normally open contact 1 of the switch 16 for connecting the AC input terminal 121 to an external power source (FIG. 1).
  • an AC power source establishes a wired connection to provide the operating voltage required for the electronic device 10 to operate in a wired power mode.
  • the power cord 123 may be pluggably disposed on the electronic device 10 or may be non-pluggable on the electronic device 10.
  • the wireless power receiving module 14 includes a wireless power receiving conversion unit 141, a detection control unit 143, and a wireless signal transceiving unit 145.
  • the wireless power receiving and converting unit 141 includes a receiving coil 140 and a high frequency converting circuit 142.
  • the receiving coil 140 is grounded at one end, and the other end is electrically connected to the high frequency converting circuit 142 for external wireless power transmitting device by magnetic coupling resonance.
  • the wireless power is received in FIG. 1 , and the high frequency conversion circuit 142 is electrically connected to the normally closed contact 2 of the changeover switch 16 for performing electrical parameters (eg, frequency, amplitude, etc.) on the wireless power received by the receiving coil 140. Adjusting the operating voltage required to operate the electronic device 10 in the wireless power mode.
  • the detection control unit 143 is electrically connected to the AC input end 121 of the wired power receiving module 12 for detecting wired power. Whether the force receiving module 12 has established a wired connection with the external power source, that is, whether the electronic device 10 operates in the wired power supply mode and generates a control signal according to the detection result.
  • the wireless signal transceiving unit 145 is electrically connected to the detection control unit 143 for accepting the control of the detection control unit 143 and to the external wireless power transmitting device when the detection control unit 143 detects that the wired power receiving module 12 has established a wired connection with the external power source.
  • the wireless power transmission request is turned off to allow the external wireless power transmitting device to stop transmitting wireless power to the wireless power receiving module 14.
  • the wireless signal transceiving unit 145 is, for example, an infrared signal transceiving unit, a Bluetooth signal transceiving unit, a radio frequency signal transceiving unit, etc., but is not intended to limit the present invention.
  • the electronic device 10 Since the wireless power receiving module 14 is connected to the normally closed contact 2 of the changeover switch 16, the electronic device 10 supplies the operating voltage thereto by the wireless power receiving module 14 under normal state (that is, in a preset state), that is, the electronic device 10 Works in normal mode in wireless power mode. Specifically, in the wireless power supply mode, the receiving coil 140 of the wireless power receiving module 14 receives the wireless power and transmits it to the high frequency converting circuit 142 for adjustment of corresponding electrical parameters (eg, frequency, amplitude, etc.), and then the high frequency converting circuit 142. The AC voltage Vac2 is output and supplied to the internal functional circuit of the electronic device 10 through the changeover switch 16 as an operating voltage.
  • the wireless power receiving module 14 under normal state (that is, in a preset state), that is, the electronic device 10 Works in normal mode in wireless power mode.
  • the receiving coil 140 of the wireless power receiving module 14 receives the wireless power and transmits it to the high frequency converting circuit 142 for adjustment of corresponding electrical parameters (eg, frequency
  • the AC input terminal 121 delivers the AC voltage Vacl (for example, 220V from the power outlet) transmitted from the power outlet to the normally open switch 16
  • the contact 1 causes the changeover switch 16 to be engaged to supply the AC voltage Vacc to the internal functional circuit of the electronic device 10 as the operating voltage, while the wireless power receiving module 14 stops supplying power to the internal functional circuit of the electronic device 10.
  • the detection control unit 143 will detect that the wired power receiving module 12 has established a wired connection with the external power source, that is, the electronic device 10 operates in the wired power supply mode, and controls the wireless signal transceiver unit 145 to transmit the wireless power transmission to the external wireless power transmitting device.
  • the request causes the wireless power transmitting device to stop transmitting wireless power to the wireless power receiving module 14, so that power consumption can be saved to some extent.
  • the switch 16 will be switched to the un-engaged state, and the wired power receiving module 12 stops supplying power to the internal functional circuit of the electronic device 10.
  • a small amount of electric energy is reserved as a buffer power source in the internal function circuit of the electronic device 10, and the buffer power supply is temporarily suspended for the internal function circuit after the power line 123 is removed from the power socket. powered by.
  • the detection control unit 143 will detect that the wired power receiving module 12 has not established a wired connection with the external power source, and control the wireless signal transceiver unit 145 to send an open wireless power transmission request to the external wireless power transmitting device.
  • the external wireless power transmitting device transmits wireless power to the wireless power receiving module 14, that is, the electronic device 10 is switched to the wireless power supply mode.
  • the wireless power supply system 20 is suitable for the electronic device 10 having a switchable wireless power supply mode and a wired power supply mode as shown in FIG.
  • the wireless power supply system 20 includes a power supply device 22, a wireless power transmitting device 24, and a wireless power receiving device 26 that is provided separately from the wireless power transmitting device 22; here, when the wireless power receiving device 26 is applied to the electronic device 10 At this time, the wireless power receiving device 26 can function as the wireless power receiving module 14.
  • the circuit configuration of the wireless power receiving module 14 since the circuit configuration of the wireless power receiving module 14 has been described above, the circuit configuration of the wireless power receiving device 26 will not be described again.
  • the power supply unit 11 is configured to supply a DC voltage Vdcl (e.g., 5-12V) and a DC voltage Vdc2 (e.g., 200V or more) based on an AC input voltage (e.g., 220V mains).
  • the power supply device 22 includes a first power supply path that is electrically connected in series by the step-down circuit 221, the rectifier filter 223, and the voltage regulator 225, and a first part that is electrically connected by the rectifier filter 222 and the output controller 224.
  • the second power supply path provides a DC voltage Vdcl, and the second power supply path provides a DC voltage Vdc2.
  • the output controller 224 may be constituted by an electronic switching circuit, and the output voltage Vdc2 of the output controller 224 may be adjusted by adjusting its switching duty ratio.
  • the wireless power transmitting device 24 includes a wireless power generating and transmitting unit 241, a main controller 243, and a wireless signal transmitting and receiving unit 245.
  • the wireless power generating and transmitting unit 241 includes a high frequency generating circuit 240 and a transmitting coil 242, and a high frequency generating circuit 240 and The power supply path and the output end of the second power supply path are electrically connected.
  • the high frequency generating circuit 240 is electrically connected to the voltage regulator 225 of the first power supply path and the output controller 224 of the second power supply path.
  • the high frequency generating circuit 240 receives the DC voltage Vdcl as its operating voltage and generates a high frequency alternating current signal Vac according to the DC voltage Vdc2, and then is sent out by the transmitting coil 242.
  • the high frequency generating circuit 240 mainly includes functional circuits such as an oscillator, an excitation circuit, and a power output circuit.
  • the main controller 243 is electrically connected to the output ends of the first power supply path and the second power supply path. In this embodiment, the output control of the main controller 243 and the voltage regulator 225 of the first power supply path and the second power supply path are controlled.
  • the device 224 is electrically connected, and is also electrically connected to the high frequency generating circuit 240.
  • the main controller 243 receives the DC voltage Vdcl as its The operating voltage, and the output voltage Vdc2 of the output controller 224 and the output Vac of the high frequency generating circuit 242 can be adjusted by obtaining the electrical parameters of the high frequency alternating current signal Vac output by the high frequency generating circuit 242, so that the high frequency alternating current output Vac can suit one's needs.
  • the wireless signal transceiving unit 245 is electrically connected to the main controller 243, for example, an infrared signal transceiving unit, a Bluetooth signal transceiving unit, etc., but is not intended to limit the present invention; when the wireless signal transceiving unit 245 receives from the wireless power receiving device 26 When the wireless power transmission request is turned off, the main controller 243 can cause the wireless power transmitting device 24 to no longer transmit power to the wireless power receiving device 26 by causing the high frequency generating circuit 240 to stop operating; and when the wireless signal transmitting and receiving unit 245 receives the wireless power receiving device When the device 26 receives the turn-on wireless power transfer request, the main controller 243 can transmit power to the wireless power receiving device 26 by the enable high frequency generating circuit 240.
  • the main controller 243 can transmit power to the wireless power receiving device 26 by the enable high frequency generating circuit 240.
  • the present invention further provides a power supply method for an electronic device 10, which is applicable to an electronic device 10 having a switchable wireless power supply module and a wired power supply module.
  • the power supply method includes the following steps: preset electronic device 10 Working in the wireless power supply mode, that is, in the wireless power supply mode, the electronic device 10 receives the power supply voltage from the wireless power supply module (step S301); and the step of cutting off the wireless when the electronic device starts receiving the power supply voltage from the wired power supply module
  • the power supply module that is, the detection control unit 143 detects whether the electronic device 10 starts receiving power voltage from the wired power supply module (step S302, ), and if the power line 123 is connected to the power socket, the AC voltage Vac is supplied to the electronic device.
  • the internal function circuit of 10 is used as the operating voltage.
  • the detection control unit 143 detects that the electronic device 10 receives the power supply voltage from the wired power supply module, and wirelessly transmits the detection result to the external wireless power of the electronic device 10.
  • the device transmits (step S303), and cuts off the wireless power receiving module 14 to stop Stopping the internal function circuit of the electronic device 10 wirelessly, causing the electronic device 10 to operate in the wired power supply mode, and controlling the wireless signal transceiving unit 145 to send a wireless power transmission request to the external wireless power transmitting device, so that the wireless power transmitting device stops.
  • the wireless power is transmitted to the wireless power receiving module 14 (step S304).
  • the detection control unit 143 detects whether the wired power receiving module establishes a wired connection with the external power source (step S401), and if the detection control unit 143 detects that the wired power receiving module 12 is not wired with the external power source.
  • step S402 Sending a wireless power transmission request to the wireless power supply module, switching the electronic device 10 to the wireless power supply mode, that is, controlling the wireless signal transceiver unit 145: Sending an open wireless power transmission request to the external wireless power transmitting device, and causing the external wireless power transmitting device to transmit the wireless power to the wireless power receiving module 14, that is, the electronic device 10 is switched back to the wireless power supply mode (step S402).
  • electronic device 10 may also include a status display system 18.
  • FIG. 5 it is a block diagram showing the structure of the state display system 18 of the electronic device 10 according to still another embodiment of the present invention.
  • the status display system 18 is electrically connected to the switch 16 and is electrically connected to the internal function circuit of the electronic device 10.
  • the status display system 18 displays the current power state of the electronic device 10 during operation of the electronic device 10 in the wired power mode or the wireless power mode.
  • the status display system 18 includes a status detection module 181, a micro control unit (MCU) 183, a data storage module 185, a data processing module 187, and a display module 189, a status detection module 181, and a data storage module 185.
  • MCU micro control unit
  • the data processing module 187 and the display module 189 are electrically connected to the MCU 183.
  • the data processing module 187 is also electrically connected to the data storage module 185 and the display module 189, respectively.
  • the state detecting module 181 is electrically connected to the switch 16 , and the state detecting module 181 receives the switch state signal from the switch 16 (for example, the normally open contact 1 is connected, the normally closed contact 1 is connected), and the switch state signal is transmitted.
  • the MCU 183 processes the switch state signal to output a control signal.
  • the data storage module 185 is connected to the MCU 183 and is used to store preset status information (for example, the wired power supply state when the normally open contact 1 is connected, and the wireless power supply state when the normally closed contact 2 is connected).
  • the data processing module 187 is connected to the MCU 183, the data storage module 185, and the display module 189, and is configured to receive the control signal output by the MCU 183 and retrieve the matching status information in the data storage module 187.
  • the display module 189 is coupled to the MCU 183 and the data processing module 187, respectively, for displaying status information transmitted in the data processing module 187.
  • the embodiment of the present invention switches a wireless power receiving mode (wireless power receiving device) adapted to receive wireless power in an electronic device and switches a wireless power supply mode and a wired power supply mode of the electronic device by setting a switch.
  • the user can flexibly select the power supply mode of the electronic device, which greatly improves the convenience of use.
  • the external wireless power transmitting device can stop transmitting wireless power to protect the external wireless power transmitting device and/or save energy.
  • the status display system it can be displayed whether the current power supply status of the electronic device is wired or wireless, so that the user can Intuitive and convenient understanding of the power supply status of the electronic device increases convenience and practicality.
  • the wireless power receiving module 14 (the wireless power receiving device 26) in the embodiment of the present invention is not limited to receiving wireless power by using a magnetic coupling resonance method, and can also use other wireless. Coupling method.
  • the changeover switch 16 in the embodiment of the present invention is not limited to a relay, and may also be a general multi-way selection switch and controlled by the detection control unit 143, for example, when the detection control unit 143 detects that the electronic device has a cable.
  • the wireless power receiving module When power is applied thereto, that is, when the electronic device starts receiving the operating voltage (ie, the power supply voltage) from the wired electronic receiving module (ie, the wired power supply module), the wireless power receiving module is cut off by controlling the multiple selection switch (ie, Wireless power supply module).
  • the multiple selection switch ie, Wireless power supply module
  • the present invention can flexibly select an electronic device by providing a wireless power receiving module (wireless power receiving device) adapted to receive wireless power in an electronic device and switching a wireless power supply mode and a wired power supply mode of the electronic device by setting a switching switch.
  • the power supply mode greatly improves the ease of use.
  • the external wireless power transmitting device can stop transmitting wireless power to protect the external wireless power transmitting device and/or save energy.
  • the status display system it can be displayed whether the current power supply status of the electronic device is wired or wireless, so that the user can intuitively and conveniently understand the power supply status of the electronic device, which increases convenience and practicability.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Near-Field Transmission Systems (AREA)

Description

电子装置及其供电方法以及无线供电系统 技术领域
本发明涉及无线供电技术， 且特别是一种釆用无线供电的电子装置、 该 电子装置的供电方法以及适用该种电子装置的无线供电系统。 背景技术
电视机等家用电子装置从电源获取电力， 通常需要通过导体之间直接接 触来实现。 因此， 电子装置在使用电源时， 例如使用交流电源， 需要有一条 电源线与电源相连， 然而由于电源线的限制， 使得电视机等家用电子装置的 放置位置受限， 给使用者带来很大的不便。
目前， 一种利用磁耦合共振来进行电力传输的无线供电技术被提出， 其 利用非辐射性磁耦合， 也即两个相同频率的谐振物体产生很强的相互耦合， 釆用单层线圈共同组成谐振回路， 不会发射电磁波， 减少能量浪费。 当使用 缠绕了 5圈粗铜线作为天线的线圈， 在进行 2米传输时效率约为 40% , 距离 为 1米时效率可高达约 90% , 其将是一种应用非常广泛的无线供电技术。
因此， 如能将此种无线供电技术应用于各种电子装置， 例如电视机等家 用电子装置， 将会给使用者提供非常大的便利性， 而且能到高效电力供给以 及低电磁干扰等目的。 发明内容
本发明的目的在于提供一种电子装置， 其可切换地工作在无线供电模式 和有线供电模式， 方便使用者使用。
本发明的另一目的在于提供一种无线供电系统， 适用于具有可切换的无 线供电模式和有线供电模式之电子装置。
本发明的又一目的在于提供一种电子装置的供电方法， 用于选择性地让 电子装置工作在有线供电模式或无线供电模式。
本发明的目的及解决其技术问题是釆用以下的技术方案来实现的。
本发明实施例提出的一种电子装置， 其包括： 有线电力接收模块、 无线 电力接收模块以及切换开关。 其中， 有线电力接收模块通过有线方式与外部 电源建立连接以提供电子装置的工作电压； 无线电力接收模块通过从外部无 线电力发送装置接收无线电力来提供电子装置的工作电压； 切换开关与有线 电力接收模块及无线电力接收模块电性耦接， 用于有线电力接收模块和无线 电力接收模块之间的切换以供给所述工作电压。
在本发明的一实施例中，所述切换开关在当有线电力接收模块与外部电 源建立有线连接时决定有线电力接收模块来向电子装置供给工作电压， 而当 有线电力接收模块与外部电源未建立有线连接时决定无线电力接收模块来向 电子装置供给工作电压。
在本发明的一实施例中， 切换开关包括常闭接点和常开接点， 其中常闭 接点与无线电力接收模块电性耦接，常开接点与有线电力接收模块电性耦接。 在此， 切换开关例如是继电器， 但本发明并不以此为限。
在本发明的一实施例中， 有线电力接收模块包括交流输入端与电源线； 其中， 交流输入端电性耦接至切换开关， 电源线用以使交流输入端与外部电 源建立有线连接。 在此， 电源线可以是可插拔地设置在电子装置上， 也可以 是不可插拔地设置在电子装置上。
在本发明的一实施例中，无线电力接收模块包括无线电力接受变换单元、 检测控制单元以及无线信号收发单元； 其中， 无线电力接收变换单元与切换 开关电性耦接， 且接收上述无线电力并对所接收到的无线电力进行电学参数 调整以输出上述工作电压至切换开关； 检测控制单元检测有线电力接收模块 是否已经与外部电源建立有线连接； 无线信号收发单元， 接受检测控制单元 之控制， 且当检测控制单元检测到有线电力接收模块已经与外部电源建立有 线连接时向外部无线电力发送装置发送关闭无线电力传送请求。
在本发明的一实施例中， 无线电力接收模块与外部无线电力发送装置形 成磁耦合共振以接收上述无线电力。
在本发明的一实施例中， 所述电子装置还包括一状态显示系统， 该状态 显示系统电性连接至切换开关， 并与电子装置的内部功能电路电性连接， 在 电子装置工作在有线供电模式或无线供电模式的过程中， 状态显示系统显示 出电子装置的当前供电状态。
在本发明的一实施例中， 所述状态显示系统包括状态检测模块、 微控制 单元、 数据存储模块、 数据处理模块及显示模块， 其中该状态检测模块、 该 数据存储模块、 该数据处理模块及该显示模块均与该微控制单元电性连接， 该数据处理模块还分别与数据存储模块及显示模块电性连接。
在本发明的一实施例中， 所述状态检测模块一端与切换开关电性连接， 另一端与微控制单元电性连接， 该状态检测模块从切换开关处接收开关状态 信号， 并将该开关状态信号传送至微控制单元， 微控制单元将该开关状态信 号经过处理后输出一个控制信号至该数据处理模块。
在本发明的一实施例中， 所述数据存储模块与微控制单元电性连接， 用 于存储预设的状态信息。
在本发明的一实施例中， 所述数据处理模块分别与微控制单元、 数据存 储模块及显示模块电性连接， 该数据处理模块接收微控制单元输出的控制信 号， 并调取数据存储模块中相匹配的状态信息。
在本发明的一实施例中， 其特征在于， 所述显示模块分别与微控制单元 和数据处理模块连接， 用于显示数据处理模块中传输的状态信息。
本发明另一实施例提出的一种无线供电系统， 适用于具有可切换的无线 供电模式和有线供电模式之电子装置。 本实施例中， 无线供电系统无线电力 发送装置以及与无线电力发送装置分离设置的无线电力接收装置。 其中， 无 线电力接收装置包括无线电力接收变换单元、 检测控制单元以及无线信号收 发单元； 无线电力接收变换单元从无线电力发送装置接收（例如以通过磁耦 合共振方式接收 ) 高频交流信号并对高频交流信号进行电学参数调整来提供 电子装置工作在无线供电模式下所需的工作电压； 检测控制单元用以检测电 子装置是否工作在有线供电模式； 无线信号收发单元接受检测控制单元的控 制， 并且当检测到电子装置工作在有线供电模式下时向所述无线电力发送装 置发送关闭无线电力传送请求， 以告知无线电力发送装置停止向无线电力接 收变换单元传送无线电力。
在本发明的一实施例中， 无线电力发送装置包括主控制器、 无线电力产 生发送单元以及第二无线信号收发单元； 无线电力产生发送单元接受主控制 器之控制以依据直流电压产生高频交流信号并以无线方式向外发送至无线电 力接收变换单元； 第二无线信号收发单元与主控制器电性相通， 且接收关闭 无线电力传送请求并传送至主控制器。
在本发明的一实施例中， 无线供电系统更包括电源供应装置， 用以依据 交流输入电压提供所述直流电压以及主控制器与无线电力发送单元的工作电 压。
本发明又一实施例提出的一种电子装置的供电方法， 适用于具有可切 换的无线供电模块和有线供电模块之电子装置。 所述电子装置的供电方法包 括步骤： 预设电子装置从无线供电模块接收电源电压； 以及当电子装置开始 从有线供电模块接收电源电压时， 切断无线供电模块。
在本发明的一实施例中， 在当电子装置开始从有线供电模块接收电源电 压时， 切断无线供电模块的步骤之前， 更包括步骤： 检测所述电子装置是否 从所述有线供电模块开始接收电源电压。
在本发明的一实施例中， 在检测电子装置是否从有线供电模块开始接收 电源电压的步骤之后， 更包括步骤： 当检测到电子装置从有线供电模块开始 接收电源电压后， 将检测结果以无线方式向电子装置之外发送。
本发明实施例通过在电子装置中设置适于接收无线电力的无线电力接收 模块（无线电力接收装置）并通过设置切换开关来切换电子装置的无线供电模 式和有线供电模式， 因此使用者可以弹性选择电子装置的供电模式， 大大提 高了使用便利性。 进一步地， 通过在无线电力接收模块中设置检测控制单元 来检测电子装置是否工作在有线供电模式并通过无线信号收发单元将检测结 果告知外部无线电力发送装置， 因此电子装置工作在有线供电模式下时， 可 让外部无线电力发送装置停止发送无线电力以实现保护外部无线电力发送装 置及 /或节省能耗之目的。 此外， 通过进一步设置状态显示系统， 可显示出电 子装置的当前供电状态是有线供电还是无线供电， 使使用者可以直观方便地 了解电子装置的供电状态， 增加了便利性和实用性。
上述说明仅是本发明技术方案的概述， 为了能够更清楚了解本发明的技 术手段， 而可依照说明书的内容予以实施， 并且为了让本发明的上述和其他 目的、 特征和优点能够更明显易懂， 以下特举较佳实施例， 并配合附图，详细 说明 ^下。 附图概述
图 1是相关于本发明实施例的一种电子装置的结构框图。
图 1是相关于本发明实施例的一种无线供电系统的结构图。 图 3是相关于本发明实施例的一种供电方法的流程图。
图 4是相关于本发明另一实施例的一种供电方法的流程图。
图 5 是相关于本发明又一实施例的电子装置的状态显示系统的结构框 图。
本发明的较佳实施方式
为更进一步阐述本发明为达成预定发明目的所釆取的技术手段及功效， 以下结合附图及较佳实施例， 对依据本发明提出的电子装置以及无线供电系 统其具体实施方式、 结构、 特征及其功效， 详细说明如后。
参见图 1 , 其示出相关于本发明实施例的一种电子装置的结构框图。 如 图 1所示， 电子装置 10包括有线电力接收模块 12、 无线电力接收模块 14以 及切换开关 16。 其中， 有线电力接收模块 12与无线电力接收模块 14电性连 接，且有线电力接收模块 12与无线电力接收模块 14均与切换开关 16电性连 接， 而切换开关 16连接至电子装置 10的内部功能电路（例如音视频处理电 路等）。 在本实施例中以继电器作为切换开关 16进行说明， 切换开关 16包括 常开接点 1和常闭接点 2。 此外， 本实施例中的电子装置 10例如为电视机等 家用电器， 但并不用来限制本发明。
有线电力接收模块 12包括交流输入端 121与电源线 123;交流输入端 121 电性耦接至切换开关 16的常开接点 1 , 电源线 123用以使交流输入端 121与 外部电源（图 1中未示出）例如交流电源建立有线连接以提供电子装置 10工 作在有线供电模式下所需的工作电压。 在此， 电源线 123可以是可插拔地设 置在电子装置 10上， 也可以是不可插拔地设置在电子装置 10上。
无线电力接收模块 14包括无线电力接收变换单元 141、检测控制单元 143 以及无线信号收发单元 145。 无线电力接收变换单元 141 包括接收线圈 140 与高频变换电路 142 , 接收线圈 140—端接地， 另一端与高频变换电路 142 电性连接， 用以通过磁耦合共振方式从外部无线电力发送装置 （图 1 中未示 出）接收无线电力，高频变换电路 142与切换开关 16的常闭接点 2电性连接， 用以对接收线圈 140所接收到的无线电力进行电学参数（例如频率， 幅度等） 调整以输出电子装置 10工作在无线供电模式下所需的工作电压。检测控制单 元 143与有线电力接收模块 12的交流输入端 121电性连接，用以检测有线电 力接收模块 12是否已经与外部电源建立有线连接， 也即检测电子装置 10是 否工作在有线供电模式并根据检测结果产生控制讯号。无线信号收发单元 145 与检测控制单元 143电性连接， 用以接受检测控制单元 143的控制且当检测 控制单元 143检测到有线电力接收模块 12已经与外部电源建立有线连接时向 外部无线电力发送装置发送关闭无线电力传送请求， 以让外部无线电力发送 装置停止向无线电力接收模块 14 传送无线电力。 在此， 无线信号收发单元 145 例如为红外信号收发单元、 蓝牙信号收发单元、 射频信号收发单元等， 但并非用来限制本发明。
下面将结合图 1具体描述本发明实施例提出的电子装置 10如何进行无线 供电模式与有线供电模式之间的切换。
由于无线电力接收模块 14是连接在切换开关 16的常闭接点 2 , 因此电 子装置 10在常态下 （也即预设状态下） 由无线电力接收模块 14向其供给工 作电压， 也即电子装置 10在常态下工作在无线供电模式。 具体地， 在无线供 电模式下，无线电力接收模块 14的接收线圈 140接收无线电力后传送至高频 变换电路 142进行相应的电学参数（例如频率、 幅度等）调整， 再由高频变 换电路 142输出交流电压 Vac2并通过切换开关 16供给电子装置 10的内部功 能电路以作为工作电压。
当使用者通过将电源线 123连接至电源插座（图 1中未示出） 时， 交流 输入端 121将从电源插座传递来的交流电压 Vacl (例如市电 220V )输送至切 换开关 16的常开接点 1 , 致使切换开关 16被吸合而将交流电压 Vacl供给电 子装置 10的内部功能电路作为工作电压， 同时无线电力接收模块 14停止向 电子装置 10的内部功能电路供电。检测控制单元 143将检测到有线电力接收 模块 12已经与外部电源建立了有线连接， 也即电子装置 10工作在有线供电 模式， 并控制无线信号收发单元 145向外部无线电力发送装置发送关闭无线 电力传送请求，使得无线电力发送装置停止向无线电力接收模块 14传送无线 电力， 因此可在一定程度上节省能耗。
之后， 若使用者将电源线 123从电源插座上拔除， 切换开关 16将会被切 换至未吸合状态， 有线电力接收模块 12停止向电子装置 10的内部功能电路 供电。 此时， 电子装置 10的内部功能电路中储备少量电能作为緩冲电源， 此 緩冲电源在电源线 123从电源插座上拔除后一定时间内为内部功能电路临时 供电。 在此緩冲电源的作用下， 检测控制单元 143将检测到有线电力接收模 块 12未与外部电源建立有线连接，并控制无线信号收发单元 145向外部无线 电力发送装置发送开启无线电力传送请求， 让外部无线电力发送装置向无线 电力接收模块 14发送无线电力， 也即电子装置 10被切换至无线供电模式。
参见图 2 , 其示出相关于本发明实施例的一种无线供电系统的结构框图。 如图 2所示，无线供电系统 20适用于图 1所示具有可切换的无线供电模式和 有线供电模式的电子装置 10。 本实施例中， 无线供电系统 20 包括电源供应 装置 22、 无线电力发送装置 24以及与无线电力发送装置 22分离设置的无线 电力接收装置 26; 在此， 当无线电力接收装置 26应用于电子装置 10时， 无 线电力接收装置 26 即可充当无线电力接收模块 14。 另外， 由于无线电力接 收模块 14的电路结构已在上文叙明， 故不再赘述无线电力接收装置 26的电 路结构。
电源供应装置 11用以根据交流输入电压 （例如市电 220V )提供直流电 压 Vdcl (例如 5—12V)和直流电压 Vdc2 (例如 200V以上；)。 具体的， 电源供应 装置 22包括由降压电路 221、 整流滤波器 223和稳压器 225依次电性连接构 成的第一供电路径以及由整流滤波器 222和输出控制器 224电性连接构成的 第二供电路径； 第一供电路径提供直流电压 Vdcl , 第二供电路径提供直流电 压 Vdc2。 在此， 输出控制器 224可以由电子开关电路构成， 通过调节其开关 占空比可调整输出控制器 224的输出电压 Vdc2大小。
无线电力发送装置 24包括无线电力产生发送单元 241、 主控制器 243以 及无线信号收发单元 245; 其中， 无线电力产生发送单元 241 包括高频产生 电路 240与发送线圈 242 , 高频产生电路 240与第一供电路径及第二供电路 径的输出端均电性连接， 在本实施例中， 高频产生电路 240与第一供电路径 的稳压器 225和第二供电路径的输出控制器 224电性连接，高频产生电路 240 接收直流电压 Vdcl作为其工作电压并依据直流电压 Vdc2产生高频交流信号 Vac , 再由发送线圈 242向外发送出去。 在此， 高频产生电路 240主要包括有 振荡器、 激励电路以及功率输出电路等功能电路。 主控制器 243与第一供电 路径及第二供电路径的输出端均电性连接， 在本实施例中， 主控制器 243与 第一供电路径的稳压器 225和第二供电路径的输出控制器 224电性连接， 同 时还与高频产生电路 240电性连接，主控制器 243接收直流电压 Vdcl作为其 工作电压， 并可通过获取高频产生电路 242输出的高频交流信号 Vac的电学 参数来调节输出控制器 224的输出电压 Vdc2与高频产生电路 242的输出 Vac , 以使高频交流输出 Vac能够满足需要。无线信号收发单元 245与主控制器 243 电性连接， 其例如为红外信号收发单元、 蓝牙信号收发单元等， 但并非用来 限制本发明； 当无线信号收发单元 245从无线电力接收装置 26接收到关闭无 线电力传送请求时， 主控制器 243可通过使高频产生电路 240停止工作来使 无线电力发送装置 24不再向无线电力接收装置 26传送电力； 而当无线信号 收发单元 245从无线电力接收装置 26接收到开启无线电力传送请求时，主控 制器 243可通过致能高频产生电路 240向无线电力接收装置 26传送电力。
参见图 3 , 本发明还提供一种电子装置 1 0的供电方法， 适用于具有可切 换的无线供电模块和有线供电模块的电子装置 1 0 ,此供电方法包括如下步骤： 预设电子装置 1 0 工作在无线供电模式， 即， 在无线供电模式下， 电子装置 1 0从无线供电模块接收电源电压 （步骤 S 301 ); 以及步骤当所述电子装置开 始从有线供电模块接收电源电压时， 切断无线供电模块， 即， 检测控制单元 143检测所述电子装置 1 0是否从所述有线供电模块开始接收电源电压（步骤 S 302 , ), 若电源线 123连接至电源插座， 交流电压 Vac l供给电子装置 1 0的 内部功能电路作为工作电压， 此时， 检测控制单元 143检测到电子装置 1 0从 有线供电模块开始接收电源电压， 将检测结果以无线方式向所述电子装置 1 0 的外部无线电力发送装置发送（步骤 S 303 ), 并切断无线电力接收模块 14以 停止向电子装置 1 0的内部功能电路无线供电， 使电子装置 1 0工作在有线供 电模式， 并控制无线信号收发单元 145向外部无线电力发送装置发送关闭无 线电力传送请求，使得无线电力发送装置停止向无线电力接收模块 14传送无 线电力 （步骤 S 304 )。
参见图 4 , 在另一实施例中， 若使用者将电源线 123从电源插座上拔除， 电子装置 1 0的内部功能电路中储备少量电能作为緩冲电源，此緩冲电源在电 源线 123从电源插座上拔除后一定时间内为内部功能电路临时供电。 在此緩 冲电源的作用下， 检测控制单元 143检测有线电力接收模块是否与外部电源 建立有线连接（步骤 S401 ), 若检测控制单元 143将检测到有线电力接收模 块 12未与外部电源建立有线连接，则向无线供电模块发送开启无线电力传送 请求， 将电子装置 1 0 切换至无线供电模式， 即， 并控制无线信号收发单元 145 向外部无线电力发送装置发送开启无线电力传送请求， 让外部无线电力 发送装置向无线电力接收模块 14发送无线电力， 也即电子装置 10被切换回 无线供电模式（步骤 S402 )。
在本发明的另一实施例中， 电子装置 10还可包括一个状态显示系统 18。 如图 5所示， 是本发明又一实施例的电子装置 10的状态显示系统 18的结构 框图。 状态显示系统 18电性连接至切换开关 16 , 并与电子装置 10的内部功 能电路电性连接。在电子装置 10工作在有线供电模式或无线供电模式的过程 中， 状态显示系统 18显示出电子装置 10当前的供电状态。 状态显示系统 18 包括状态检测模块 181、 微控制单元 ( Mi cro Cont ro l ler Uni t , MCU ) 183、 数据存储模块 185、 数据处理模块 187及显示模块 189 , 状态检测模块 181、 数据存储模块 185、数据处理模块 187及显示模块 189均与 MCU183电性连接， 同时， 数据处理模块 187还分别与数据存储模块 185及显示模块 189电性连 接。 其中， 状态检测模块 181与切换开关 16电性连接， 该状态检测模块 181 从切换开关 16处接收开关状态信号（例如常开接点 1连通，常闭接点 1连通 ), 并将该开关状态信号传送至 MCU183 , MCU183将该开关状态信号经过处理后输 出一个控制信号。 数据存储模块 185与 MCU183连接， 用于存储预设的状态信 息 （例如常开接点 1连通时为有线供电状态， 常闭接点 2连通时为无线供电 状态）。 数据处理模块 187分别与 MCU183、 数据存储模块 185及显示模块 189 连接， 用于接收 MCU183输出的控制信号， 并调取数据存储模块 187中相匹配 的状态信息。 显示模块 189分别与 MCU183和数据处理模块 187连接， 用于显 示数据处理模块 187中传输的状态信息。
综上所述， 本发明实施例通过在电子装置中设置适于接收无线电力的无 线电力接收模块（无线电力接收装置）并通过设置切换开关来切换电子装置 的无线供电模式和有线供电模式， 因此使用者可以弹性选择电子装置的供电 模式， 大大提高了使用便利性。 进一步地， 通过在无线电力接收模块中设置 检测控制单元来检测电子装置是否工作在有线供电模式并通过无线信号收发 单元将检测结果告知外部无线电力发送装置， 因此电子装置工作在有线供电 模式下时， 可让外部无线电力发送装置停止发送无线电力以实现保护外部无 线电力发送装置及 /或节省能耗之目的。此外，通过进一步设置状态显示系统， 可显示出电子装置的当前供电状态是有线供电还是无线供电， 使使用者可以 直观方便地了解电子装置的供电状态， 增加了便利性和实用性。
另外， 本领域技术人员可以理解的是， 本发明实施例中的无线电力接收 模块 14 (无线电力接收装置 26 )并不限于釆用磁耦合共振方式来接收无线电 力， 其也可釆用其他无线耦合方式。 再者， 本发明实施例中的切换开关 16并 不限于继电器， 其还可为一般的多路选择开关并通过检测控制单元 143对其 进行控制， 例如当检测控制单元 143检测到电子装置有有线电力施加于其上 时， 也即电子装置开始从有线电子接收模块（也即有线供电模块）接收工作 电压 （也即电源电压） 时， 通过控制多路选择开关来切断无线电力接收模块 (也即无线供电模块）。
以上所述， 仅是本发明的较佳实施例而已， 并非对本发明作任何形式上 的限制， 虽然本发明已以较佳实施例揭露如上， 然而并非用以限定本发明， 任何熟悉本专业的技术人员，在不脱离本发明技术方案范围内，当可利用上述 揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱 单修改、 等同变化与修饰，均仍属于本发明技术方案的范围内。
工业实用性
本发明通过在电子装置中设置适于接收无线电力的无线电力接收模块 (无线电力接收装置）并通过设置切换开关来切换电子装置的无线供电模式和 有线供电模式， 因此使用者可以弹性选择电子装置的供电模式， 大大提高了 使用便利性。 进一步地， 通过在无线电力接收模块中设置检测控制单元来检 测电子装置是否工作在有线供电模式并通过无线信号收发单元将检测结果告 知外部无线电力发送装置， 因此电子装置工作在有线供电模式下时， 可让外 部无线电力发送装置停止发送无线电力以实现保护外部无线电力发送装置及 /或节省能耗之目的。 此外， 通过进一步设置状态显示系统， 可显示出电子装 置的当前供电状态是有线供电还是无线供电， 使使用者可以直观方便地了解 电子装置的供电状态， 增加了便利性和实用性。

Claims

权 利 要 求 书
1、 一种电子装置， 其包括：
有线电力接收模块， 通过有线方式与外部电源建立连接， 以提供所述电 子装置的工作电压；
无线电力接收模块， 以无线方式接收从外部无线电力发送装置发送的电 力， 并提供所述电子装置的工作电压； 以及
切换开关， 分别与所述有线电力接收模块及所述无线电力接收模块电性 耦接， 用于所述有线电力接收模块和所述无线电力接收模块之间的切换以供 给所述电子装置的工作电压。
2、 根据权利要求 1所述的电子装置， 其特征在于， 在当所述有线电力接 收模块与所述外部电源建立有线连接时， 所述有线电力接收模块来供给所述 工作电压， 而当所述有线电力接收模块与所述外部电源未建立有线连接时， 所述无线电力接收模块来供给所述工作电压。
3、 根据权利要求 1所述的电子装置， 其特征在于， 所述切换开关包括常 闭接点和常开接点， 所述常闭接点与所述无线电力接收模块电性耦接， 且所 述继电器的常开接点与所述有线电力接收模块电性耦接。
4、 根据权利要求 3所述的电子装置， 其特征在于， 所述切换开关包括继 电器。
5、 根据权利要求 1所述的电子装置， 其特征在于， 所述有线电力接收模 块包括：
交流输入端， 其电性耦接至所述切换开关的常开接点。
6、 根据权利要求 1所述的电子装置， 其特征在于， 所述无线电力接收模 块包括：
无线电力接收变换单元， 与所述切换开关电性耦接， 且接收所述无线电 力并对所接收到的无线电力进行电学参数调整以输出所述工作电压至所述切 换开关；
检测控制单元， 检测所述有线电力接收模块是否已经与所述外部电源建 立有线连接； 以及
无线信号收发单元， 接受所述检测控制单元之控制， 且当所述检测控制 单元检测到所述有线电力接收模块已经与所述外部电源建立有线连接时向所 述外部无线电力发送装置发送关闭无线电力传送请求。
7、 根据权利要求 1所述的电子装置， 其特征在于， 所述无线电力接收模 块与所述外部无线电力发送装置形成磁耦合共振以接收所述无线电力。
8、 根据权利要求 1所述的电子装置， 其特征在于， 所述电子装置还包括 一状态显示系统， 该状态显示系统电性连接至切换开关， 并与电子装置的内 部功能电路电性连接， 在电子装置工作在有线供电模式或无线供电模式的过 程中， 状态显示系统显示出电子装置的当前供电状态。
9、 根据权利要求 8所述的电子装置， 其特征在于， 所述状态显示系统包 括状态检测模块、 微控制单元、 数据存储模块、 数据处理模块及显示模块， 其中该状态检测模块、 该数据存储模块、 该数据处理模块及该显示模块均与 该微控制单元电性连接， 该数据处理模块还分别与数据存储模块及显示模块 电性连接。
10、 根据权利要求 9所述的电子装置， 其特征在于， 所述状态检测模块 一端与切换开关电性连接， 另一端与微控制单元电性连接， 该状态检测模块 从切换开关处接收开关状态信号， 并将该开关状态信号传送至微控制单元， 微控制单元将该开关状态信号经过处理后输出一个控制信号至该数据处理模 块。
11、 根据权利要求 9所述的电子装置， 其特征在于， 所述数据存储模块 与微控制单元电性连接， 用于存储预设的状态信息， 该状态信息包括有线供 电状态的信息和无线供电状态的信息。
12、 根据权利要求 11所述的电子装置， 其特征在于， 所述数据处理模块 分别与微控制单元、 数据存储模块及显示模块电性连接， 该数据处理模块接 收微控制单元输出的控制信号， 并调取数据存储模块中相匹配的状态信息。
1 3、 根据权利要求 12所述的电子装置， 其特征在于， 所述显示模块分别 与微控制单元和数据处理模块连接， 用于显示数据处理模块中传输的状态信 息。
14、 一种无线供电系统， 其包括：
无线电力发送装置； 以及
无线电力接收装置， 与所述无线电力发送装置分离设置且包括： 无线电力接收变换单元， 与该无线电力发送装置感应生成电压； 检测控制单元， 用以检测所述电子装置是否工作在有线供电模式； 以及 无线信号收发单元， 接受所述检测控制单元的控制， 并且当所述检测控 制单元检测到所述电子装置工作在有线供电模式下时向所述无线电力发送装 置发送关闭无线电力传送请求。
15、 根据权利要求 14所述的无线供电系统， 其特征在于， 所述无线电力 接收变换单元与所述无线电力发送装置形成磁耦合共振以接收所述高频交流 信号。
16、 根据权利要求 14所述的无线供电系统， 其特征在于， 所述无线电力 发送装置包括：
主控制器；
无线电力产生发送单元， 接受所述主控制器之控制以依据直流电压产生 一高频交流信号并以无线方式向外发送至所述无线电力接收变换单元； 以及 第二无线信号收发单元， 与所述主控制器电性相通， 且接收所述关闭无 线电力传送请求并传送至所述主控制器。
17、 根据权利要求 16所述的无线供电系统， 其特征在于， 更包括： 电源供应装置， 用以依据交流输入电压提供所述直流电压以及所述主控 制器与所述无线电力发送单元之工作电压。
18、 一种电子装置的供电方法， 适用于具有可切换的无线供电模块和有 线供电模块之电子装置， 所述电子装置的供电方法包括步骤：
预设所述电子装置从无线供电模块接收电源电压； 以及
当所述电子装置开始从有线供电模块接收电源电压时， 切断无线供电模 块。
19、 根据权利要求 18所述的电子装置的供电方法， 其特征在于， 在当所 述电子装置开始从有线供电模块接收电源电压时， 切断无线供电模块的步骤 之前， 更包括步骤：
检测所述电子装置是否从所述有线供电模块开始接收电源电压。
20、 根据权利要求 21所述的电子装置的供电方法， 其特征在于， 在检测 所述电子装置是否从所述有线供电模块开始接收电源电压的步骤之后， 更包 括步骤： 当检测到所述电子装置从所述有线供电模块开始接收电源电压后， 将检 测结果以无线方式向所述电子装置之外发送。
21、 根据权利要求 18所述的电子装置的供电方法， 其特征在于， 在当所 述电子装置开始从有线供电模块接收电源电压时， 切断无线供电模块的步骤 之后， 更包括步骤：
检测有线电力接收模块是否与外部电源建立有线连接， 若有线电力接收 模块未与外部电源建立有线连接， 向外部无线供电模块发送开启无线电力传 送请求， 将电子装置切换至无线供电模式。
PCT/CN2010/080161 2010-06-24 2010-12-23 电子装置及其供电方法以及无线供电系统 WO2011160405A1 (zh)

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