CN102832719B - The wireless power supply system of electric equipment and method - Google Patents
The wireless power supply system of electric equipment and method Download PDFInfo
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- CN102832719B CN102832719B CN201110162607.6A CN201110162607A CN102832719B CN 102832719 B CN102832719 B CN 102832719B CN 201110162607 A CN201110162607 A CN 201110162607A CN 102832719 B CN102832719 B CN 102832719B
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Abstract
The invention discloses a kind of wireless power supply system and method for electric equipment, this system comprises at least one wireless power transmitting end equipment, and, wireless power transmitting end equipment is arranged in seat, wherein, wireless power transmitting end equipment is used for needing the electric equipment charged to identify, and determines the power supply parameter of electric equipment; Wireless power transmitting end equipment comprises power management module and transmitting coil; Wherein, power management module is used for powering to transmitting coil according to the power supply parameter determined; Transmitting coil, for receiving the power supply of power management module and producing magnetic field, is powered to electric equipment.The magnetic field that the present invention is produced by the transmitting coil of the wireless power transmitting end equipment be arranged in seat identifies the electric equipment being furnished with receiving coil and rationally powers, as long as the electric equipment of user just can accept wireless power close to seat, thus effectively can overcome the problem of wireless power by place restriction, realize effective power supply management.
Description
Technical Field
The present invention relates to the field of electrical devices, and in particular, to a wireless power supply system and method for an electrical device.
Background
Wireless power transmission is a technology with promising future. The technology can eliminate the limitation that the wired charging is controlled by the length of the circuit and the complexity caused by the circuit layout, so that the electronic product is more convenient to use.
However, the basic power source of the current occasions adopting wireless power supply or wireless charging is mainly commercial power or a battery, but in the occasions such as a general room, a waiting hall (and similarly, a waiting hall) and a vehicle, the electric equipment of a user cannot be conveniently supplied with power.
Therefore, no effective solution has been proposed at present as to how to effectively wirelessly power the electrical devices of the user in a simple manner.
Disclosure of Invention
The invention provides a wireless power supply system and a wireless power supply method for electrical equipment, aiming at the problem that the electrical equipment of a user cannot be effectively and wirelessly powered in a simple and convenient mode in the related art, and the wireless power supply system and the wireless power supply method can respectively and reasonably power supply different electrical equipment in various occasions.
The technical scheme of the invention is realized as follows:
according to one aspect of the invention, a wireless power supply system for an electrical device is provided.
The system comprises at least one wireless power supply transmitting terminal device, wherein the wireless power supply transmitting terminal device is arranged in a seat and is used for identifying the electrical equipment needing to be charged and determining the power supply parameters of the electrical equipment; the wireless power supply transmitting terminal equipment comprises a power supply management module and a transmitting coil; the power supply management module is used for supplying power to the transmitting coil according to the determined power supply parameters; the transmitting coil is used for receiving power supply of the power management module and generating a magnetic field to supply power to the electrical equipment.
The wireless power supply transmitting terminal equipment comprises a wireless power transmission module, the wireless power transmission module comprises a control circuit, a driving circuit and a transmitting coil, the control circuit is connected to the power management module and is used for identifying the electrical equipment through a handshaking protocol based on the transmitting coil and a receiving coil of the electrical equipment, receiving an identification signal from the electrical equipment through the transmitting coil after the electrical equipment is successfully identified, determining a power supply parameter required by the electrical equipment according to the identification signal, and informing the power management module of the determined power supply parameter, wherein the identification signal is used for indicating the identification of the electrical equipment, and/or the type of the electrical equipment, and/or the power supply parameter required by the electrical equipment;
and the power management module is used for supplying power to the driving circuit according to the power supply parameters notified by the control circuit, and the driving circuit is used for driving the transmitting coil to generate a magnetic field meeting the requirements of the electrical equipment based on the power supply of the power management module.
The system may further comprise: and the load detection module is used for detecting the voltage and the current at the transmitting coil, judging whether the electrical equipment needing power supply exists according to the detection result, and identifying the electrical equipment by the control circuit under the condition that the judgment result is yes.
In addition, each wireless power supply transmitting terminal device further comprises a load identification module, a device code identification module, a control circuit and a driving circuit, wherein the control circuit comprises a storage module and a processor,
the load identification module is used for reading the identifier of the electrical equipment in a wireless mode;
the equipment code identification module is used for demodulating according to the identification information read by the load identification module and determining the identification of the electrical equipment;
the storage module stores the identification of the electrical equipment and the corresponding power supply parameters;
the processor is used for determining the power supply parameters corresponding to the electrical equipment identification according to the content stored by the storage module and informing the power management module of the determined power supply parameters;
the identification signal is used for indicating the identification of the electrical equipment, and/or the type of the electrical equipment, and/or the required power supply parameter of the electrical equipment.
The load identification module is an RFID reader, and the RFID reader reads the identification of the electrical equipment by reading a label preset on the electrical equipment; or the load identification module is a bar code reader, and the bar code reader reads the identifier of the electrical equipment by reading a bar code arranged on the electrical equipment.
Further, optionally, the system may further comprise: and the electric energy recording module is used for detecting the voltage and the current at the transmitting coil during the power supply of the electrical equipment by the system, and obtaining the power consumption generated by the power supply of the electrical equipment according to the monitored current and voltage.
In addition, the electric energy recording module is also used for determining the cost corresponding to the power consumption according to a preset charging mode.
In addition, the power management module of the wireless power supply transmitting terminal equipment is connected with a preset power supply part, the power management module is used for receiving power supply of the power supply part, the power supply part comprises a storage battery and/or solar energy receiving equipment, and the wireless power supply transmitting terminal equipment is connected with the power supply part through a wire led out from a chair back, a seat part, an armrest or chair legs of the chair.
Optionally, the seat is provided in a vehicle or room, and the battery and solar energy receiving device are provided in or attached to the vehicle or room.
The power management module of the wireless power supply transmitting terminal equipment is arranged in a backrest, a seat part, an armrest or a storage plate arranged on the seat, and the transmitting coil of the wireless power supply transmitting terminal equipment is arranged in the backrest, the seat part, the armrest or the storage plate arranged on the seat.
Preferably, the wireless power supply transmitting terminal device further includes a switch module, and the switch module is configured to control whether the power management module of the wireless power supply transmitting terminal device supplies power to the transmitting coil of the wireless power supply transmitting terminal device.
According to another aspect of the invention, a wireless power supply method of the electric appliance is also provided.
The method comprises the following steps: under the condition that at least one wireless power supply transmitting terminal device is required to supply power to the electrical equipment, the wireless power supply transmitting terminal device identifies the electrical equipment required to be charged and determines power supply parameters of the electrical equipment, wherein the wireless power supply transmitting terminal device is arranged in a seat; the power management module of the wireless power supply transmitting terminal equipment supplies power to the transmitting coil of the wireless power supply transmitting terminal equipment according to the determined power supply parameters; the transmitting coil receives the power supply of the power supply management module and generates a magnetic field to supply power to the electrical equipment.
The wireless power supply transmitting terminal equipment identifies the electrical equipment, and the processing for determining the power supply parameters of the electrical equipment comprises the following steps: the control circuit of the wireless power supply transmitting terminal equipment is based on the transmitting coil of the wireless power supply transmitting terminal equipment and the receiving coil of the electrical equipment and is identified with the electrical equipment through a handshake protocol; after the identification is successful, the transmitting coil of the wireless power supply transmitting terminal equipment receives the identification signal from the electrical equipment; the control circuit determines power supply parameters required by the electrical equipment according to the received identification signals and informs the power supply parameters to a power supply management module of the wireless power supply transmitting terminal equipment; the power management module supplies power to a driving circuit of the wireless power supply transmitting terminal equipment according to the power supply parameters notified by the control circuit; the driving circuit drives the transmitting coil of the wireless power supply transmitting terminal equipment to generate a magnetic field meeting the requirements of electrical equipment based on the power supply of the power management module.
On the other hand, the processing that at least one wireless power supply transmitting terminal device identifies the electrical equipment and determines the power supply parameters of the electrical equipment comprises: the load identification module of the wireless power supply transmitting terminal equipment acquires the identification of the electrical equipment in a wireless mode; the processor of the wireless power supply transmitting terminal equipment determines a power supply parameter corresponding to the acquired electrical equipment identifier according to a corresponding relation between the pre-stored electrical equipment identifier and the corresponding power supply parameter, and notifies the determined power supply parameter to a power supply management module of the wireless power supply transmitting terminal equipment; the power management module supplies power to a driving circuit of the wireless power supply transmitting terminal equipment according to the power supply parameters notified by the processor; the driving circuit drives the transmitting coil of the wireless power supply transmitting terminal equipment to generate a magnetic field meeting the requirements of electrical equipment based on the power supply of the power management module.
The invention identifies the electrical equipment with the receiving coil and reasonably supplies power (including charging) through the magnetic field generated by the transmitting coil of the wireless power supply transmitting terminal equipment arranged in the seats in various occasions, so that the electrical equipment of a user can receive wireless power supply as long as the electrical equipment approaches the seat, thereby effectively overcoming the problem that the wireless power supply is limited by places in the related art and realizing effective power supply management.
Drawings
FIG. 1 is a diagram of a wireless power supply system for an electrical device according to an embodiment of the present invention;
FIG. 2a is a block diagram of an example of a wireless power supply system of an electrical device according to an embodiment of the present invention;
fig. 2b is a schematic diagram of a specific example of a connection manner of a power management module and other modules in a wireless power supply system of an electrical device according to an embodiment of the present invention;
FIG. 3a is a side view of a seat structure of example 1 with a wirelessly powered transmitting end device disposed in the seat according to an embodiment of the present invention;
FIG. 3b is a top view of the structure of one of the seats of example 1 with a wirelessly powered transmitting end device disposed in the seat in accordance with an embodiment of the present invention;
FIG. 4a is a side view of a seat structure of example 2 in which a wirelessly powered transmitting end device is disposed in the seat according to an embodiment of the present invention;
FIG. 4b is a top view of a seat structure of example 2 with a wirelessly powered transmitting end device disposed in the seat according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the connection between the transmission power management center and the power recording module in the wireless power supply system of the electric appliance according to the present invention;
fig. 6 is a structural diagram of one specific example of an electric energy recording module in the wireless power supply system of the electric appliance according to the present invention;
fig. 7 is a block diagram illustrating a connection relationship of a power management module with other modules in a wireless power supply system of an electric device according to the present invention;
fig. 8 is a flowchart of wireless power transmission by the wireless power supply system of the electric device according to the present invention;
FIG. 9 is a flow chart of a system for device identification and power transfer recording according to an embodiment of the present invention;
fig. 10 is a flowchart of a wireless power supply method of an electric device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides that electric energy is supplied to wireless power supply transmitting terminal equipment arranged in seats in various occasions, so that the electric equipment provided with the receiving coil is identified and reasonably supplied with power (including charging) by means of the magnetic field generated by the transmitting coil, therefore, the electric equipment of a user can receive wireless power supply as long as the electric equipment approaches the seats, the problem that the wireless power supply is limited by places in the related art can be effectively overcome, and effective power supply management is realized.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
According to an embodiment of the present invention, there is provided a wireless power supply system of an electric appliance.
As shown in fig. 1, the wireless power supply system of the electrical equipment according to the embodiment of the present invention includes a plurality of wireless power supply transmitting end devices 1, 2, a., N, in this embodiment, a storage battery 12 and a solar energy receiving device (the number of the solar energy receiving devices may also be at least one) 13 may be used as a power supply portion storage battery 12, and further, a solar energy receiving device (the number of the solar energy receiving devices may also be at least one) 13 may be further included, of course, the storage battery 12 may also be replaced by an existing power supply system installed on a vehicle, each of the wireless power supply transmitting end devices 1, 2, a., N may supply power (including charging) to one electrical equipment, specifically, may supply power to a wireless charging device receiving end on the electrical equipment, and one wireless power supply transmitting end device may be installed in one seat, the seat can be located in vehicles such as automobiles, trains, ships, airplanes and the like, and can also be located in other public places such as a waiting hall, a cinema, a library and the like. The solar receiving device 13 may be connected to the storage battery 12 to convert light energy into electric energy and store the electric energy in the storage battery 12, and then at least one wireless power supply transmitting terminal device is connected to the storage battery 12 to obtain the electric energy, where the storage battery 12 may also be an original storage battery or a power supply system on a vehicle without the solar receiving device.
As shown in fig. 2a, the wireless power supply system of the electrical equipment according to the embodiment of the present invention includes a solar energy receiving device 13, a storage battery 12, and at least one wireless power supply transmitting end device, wherein, for the sake of clarity, only one wireless power supply transmitting end device 1 is shown, and the electrical equipment needing power supply is not shown, and power supply and other related processes for other wireless power supply transmitting end devices are similar to those of the wireless power supply transmitting end device 1 and are not repeated herein.
In the system shown in fig. 2a, the solar receiving device 13 is used for converting solar energy into electric energy; the storage battery 12 is connected to the solar receiving device 13, and is used for storing the electric energy converted by the solar receiving device 13 and supplying power to the wireless power supply transmitting terminal device 1; the wireless power supply transmitting terminal equipment 1 is connected to the storage battery 12, and each wireless power supply transmitting terminal equipment is used for identifying electric equipment needing to be charged and determining power supply parameters of the electric equipment; each wireless power supply transmitting terminal device comprises a power supply management module 14 and a transmitting coil 15, and for the identification of the electrical equipment and the control of power supply, the identification and the control of power supply can be completed by other modules and circuits in the wireless power supply transmitting terminal device, and specifically, how to identify the electrical equipment and how to control the power supply management module to supply power will be described in detail below; the power management module 14 is configured to receive power supplied by the battery 12 and supply power to the transmitting coil 15 according to the determined power supply parameter; the transmitting coil 15 is used for receiving the power supply of the power management module 14 and generating a magnetic field to supply power to the electrical equipment. In the embodiment of the present invention, the power management module 14 may provide electric energy required for operation for each module or entity in the wireless power supply transmitting end device.
Alternatively, the power management module may be disposed in the wireless power supply transmitting terminal device as shown in the figure, or may be disposed outside the wireless power supply transmitting terminal device (for example, the wireless power supply transmitting terminal device is disposed in a seat, and the power management module is disposed in the ground where the seat is located, or is attached to the outside of the seat, or is disposed in a wall near the seat, specific disposing manners are not listed one by one herein, and in the following description, a case where the power management module is disposed in the wireless power supply transmitting terminal device is mainly described as an example, and for a case where the power management module is disposed outside the seat, functions and structures of the power management module are similar, and only the locations of the power management module are different).
It should be noted that although fig. 1 and fig. 2a show that the wireless power supply transmitting end device obtains electric energy through the storage battery and/or the solar energy receiving device and supplies power to the respective transmitting coil, this is only a specific example, and in practical applications, the wireless power supply transmitting end device in the seat may be supplied with power in other various manners, for example, the wireless power supply transmitting end device may be supplied with power through a plurality of devices capable of generating electric energy, such as a storage battery, a commercial power, a generator, and the like, so as to complete power supply to the electrical equipment by means of the wireless power supply transmitting end device, which is not listed herein.
By means of the system, the electric energy acquired by the solar receiving equipment is stored by the storage battery, and the stored electric energy is provided for the wireless power supply transmitting terminal equipment, so that the electric equipment provided with the receiving coil is identified and reasonably powered (including charging) by means of the magnetic field generated by the transmitting coil, and the solar receiving equipment and the storage battery are adopted, so that the electric energy can be stored by means of solar energy under the condition of no mains supply, and the stored electric energy is reasonably provided for the identified electric equipment, the problem that the wireless power supply is limited by the mains supply in the related technology can be effectively solved, the time of the wireless power supply can be effectively prolonged, reasonable power supply can be performed by identifying each electric equipment, and effective power supply management is realized. Similarly, the similar effects described above can be achieved by means of an on-vehicle battery, or a combination of an on-vehicle battery and a solar energy receiving device.
The number of the solar receiving devices can be one or more, and the solar receiving devices are connected to the storage battery; the number of the storage battery may be one, or may include a plurality of battery units, and the storage battery may uniformly supply power to the wireless power supply transmitting terminal device, or each battery unit may respectively supply power to one or more wireless power supply transmitting terminal devices corresponding to each battery unit.
The system of the invention can identify the electrical devices in a number of ways, two of which are described in detail below:
as shown in fig. 2b, in the system according to the embodiment of the present invention, each wireless power supply transmitting end device may include a wireless power transmission module and a power transmission recording module (hereinafter also referred to as a power recording module), the power management module supplies power to the wireless power transmission module and the power transmission recording module, and the wireless power transmission module includes a control circuit, a driving circuit, the transmitting coil, and a load detection module. The driving circuit is connected between the control circuit and the transmitting coil, the power management module is connected with the control circuit, and the control circuit is further connected to the transmitting coil through the load detection module. The control circuit is used for identifying the electrical equipment through a handshaking protocol based on the transmitting coil and the receiving coil of the electrical equipment, receiving an identification signal from the electrical equipment through the transmitting coil after the identification is successful, determining a power supply parameter required by the electrical equipment according to the identification signal, and notifying the determined power supply parameter to the power supply management module; and the power management module is used for supplying power to the driving circuit according to the power supply parameters notified by the control circuit, and the driving circuit is used for driving the transmitting coil to generate a magnetic field meeting the requirements of the electrical equipment based on the power supply of the power management module. Therefore, information interaction can be realized by the aid of the transmitting coil of the wireless power supply transmitting terminal equipment and the receiving coil of the electrical equipment coupled with the transmitting coil, information such as identification and power grade of the electrical equipment is determined through parameters such as signal waveforms, and identification of the electrical equipment is completed.
And, if there is the foreign matter to place near wireless power supply transmitting terminal equipment, although can arouse the change of transmitting coil medium voltage electric current, these changes can not accord with the signal change rule that transmitting terminal equipment and receiving terminal equipment required, so control circuit can not consequently regard as the electrical equipment who recognises to need the power supply, and wireless charging transmitting terminal equipment still can not work to can avoid the wrong execution of power supply, the energy can be saved.
And the load detection module in the system is connected with the transmitting coil and the control circuit and used for detecting the voltage and the current at the transmitting coil, judging whether the electrical equipment needing power supply exists according to the detection result, namely, whether the electrical equipment is close to the transmitting coil and waits for power supply, and controlling the control circuit to identify the electrical equipment under the condition that the judgment result is yes.
In consideration of implementation complexity, only the power level of the electrical device or the type of the electrical device (e.g., a mobile phone, a laptop, etc.) may be identified when performing the identification, without obtaining a specific identifier of the electrical device, and a specific process will be described below with reference to fig. 8.
If only the device identification is needed by the method, the load identification module and the device code identification circuit may be omitted, and optionally, the power transmission recording circuit in the power transmission recording module may include a voltage recording circuit and a current recording circuit, or may not include a voltage recording circuit and a current recording circuit, and the calculation is performed according to the current and the voltage detected by the load detection module.
(mode two) the power supply system according to the present invention can also identify the electrical appliance that needs to be supplied with power by other means. Specifically, the wireless power supply transmitting terminal device further comprises a load identification module (not shown), a storage module (not shown), a processor (not shown) and a driving circuit. The load identification module is used for acquiring the identifier of the electrical equipment in a wireless mode; the storage module stores the identification of the electrical equipment and the corresponding power supply parameters; the processor is used for determining the power supply parameters corresponding to the electrical equipment identification according to the content stored by the storage module and informing the power management module of the determined power supply parameters; and the power management module is used for supplying power to the driving circuit according to the power supply parameters notified by the processor, and the driving circuit is used for driving the transmitting coil to generate a magnetic field meeting the requirements of the electrical equipment based on the power supply of the power management module.
Optionally, the load identification module may be an RFID reader, and the RFID reader obtains an identifier of the electrical equipment by reading a tag preset on the electrical equipment; or, the load identification module may be a barcode reader, and the barcode reader obtains the identifier of the electrical equipment by reading a barcode set on the electrical equipment.
Similarly, if the load identification module does not identify the electrical equipment, the wireless charging transmitting terminal equipment does not work, so that the power supply can be prevented from being performed mistakenly, and energy is saved.
In practical application, the structure according to this embodiment may be as shown in fig. 2b, the power transmission recording module includes a load identification module, an apparatus code identification circuit, and a power transmission recording circuit (the power transmission recording circuit may include a voltage recording circuit and a current recording circuit, or may not include a voltage recording circuit and a current recording circuit, and performs calculation according to the current and voltage detected by the load detection module), and may be configured to record the total power (total power supplied) of the transmitted power, the apparatus code identification circuit is connected between the power transmission recording circuit and the load identification module, the load identification module can read a barcode or an RFID tag on the electrical apparatus, and the apparatus code identification circuit can determine the identifier of the electrical apparatus according to the content read by the load identification module, so that the processor can determine the identifier of the electrical apparatus stored in the storage module and the corresponding relationship between the power supply parameters of the electrical apparatus And determining the power supply parameters of the electrical equipment needing power supply currently. In the configuration shown in fig. 2b, the storage module and the processor are omitted, but it will be understood by those skilled in the art that these two modules should also be connected in a suitable manner with the power transmission record, the module wireless power transmission module, or the modules contained in these two modules, and that the processor and the storage module may optionally be integrated in the control circuit.
The power supply parameters of the electrical equipment may include a voltage value, a current voltage value, a coil frequency value, a power level, and the like required by the electrical equipment, or may be a combination of all or part of the above parameters and other parameters not listed.
In addition, in the system according to the embodiment of the present invention, each wireless power transmission end device may also have a function of identifying an electrical device according to the first and second modes, and the structure thereof may refer to the principle shown in fig. 2 b.
Other ways of obtaining the identifier of the electrical device or the related power supply parameter are many and are not listed here.
The system according to the embodiment of the present invention may further include: and the electric energy recording module is connected with the wireless electric energy transmission module and used for detecting the voltage and the current at the transmitting coil during the power supply period of the electrical equipment by the system, obtaining the power consumption generated by the power supply of the electrical equipment according to the monitored current and voltage and determining the cost corresponding to the power consumption according to a preset charging mode. In addition, the first mode and the second mode can be used alternatively, and in the first mode, the electric energy recording module (also called as an electric energy transmission recording module) and the load detection module can be integrated or cooperate with each other to perform power statistics when detecting the voltage and the current. In the second mode, the power recording module needs to include a voltage detection circuit and a current detection circuit connected to the transmitting coil to obtain power consumption. The system of the invention can be provided with a transmission electric energy management center for receiving the charge information returned by the electric energy recording module, and in addition, the electric energy transmission module can inform the transmission electric energy management center of the power consumption condition without calculating the charge, and the transmission electric energy management center calculates the charge. And when the deduction is carried out, a manual charging mode can be adopted, preferably, when the second mode is adopted, the card swiping operation can be directly carried out on the wallet card on the electrical equipment by means of the RFID reader, and the deduction is finished.
Specifically, as shown in fig. 5, the system of the present invention may further include a transmission power management center, and a power recording module corresponding to each wireless power supply transmitting end device, and, in practical applications, it may be considered to integrate the load identification module described earlier into the power recording module for identifying a unique code assigned to a device, the power recording module records a device identification code, and information indicating consumed power, and the power recording module may transmit the information indicating power consumption and a device identification (and/or a seat identification) to the management center in real time through a signal line.
And if the transmission power management center is not arranged, the power recording module records the information representing the consumed power in the memory card, and the maintenance personnel reads the information in the memory card at regular time.
Each of the at least one wireless power supply transmitting terminal device further comprises a switch module, and each switch module is used for controlling whether the power management module of the wireless power supply transmitting terminal device supplies power to the transmitting coil of the wireless power supply transmitting terminal device.
If the user turns on the switch module, the wireless power supply transmitting terminal equipment works so as to supply power to the electrical equipment, and if the user does not turn on the switch, the electrical equipment is not charged; or the user can manage own equipment to perform charging operation or not, and if the charging operation is not performed, the receiving end circuit on the electric equipment side can be disconnected.
The wireless power supply system of the present invention may be provided in a vehicle or a room, such as an airplane, an automobile, or a seat in a hall, etc., and a folding plate provided at a seat back, or an armrest or a seat portion, or an armrest or a backrest serves as a storage plate. The storage battery and the solar energy receiving device are arranged in or attached to an automobile or a room, and a wireless power supply transmitting terminal device is arranged in a seat in the automobile or the room, wherein a power management module of the wireless power supply transmitting terminal device is arranged in a backrest, a seat part, or an armrest of the seat, or a storage board arranged on the seat, and a transmitting coil of the wireless power supply transmitting terminal device is arranged in the backrest, the seat part, or the armrest of the seat, or the storage board arranged on the seat (for example, a folding table board at the back of the seat or a folding table board arranged at an assistant hand of the seat); and the wireless power supply transmitting terminal equipment is connected with the storage battery through a lead wire led out from a chair back, a seat part, an armrest or chair legs of the chair.
In particular, when the system is installed on a car, the solar receiving device can be installed on the roof and/or the two sides of the car body, the storage battery is used for supplying power to the whole compartment, and a storage battery (or a battery unit, wherein each storage battery or battery unit is independent) can be arranged at each desk. In addition, solar energy can be used for wireless power supply only, a storage battery can be connected to a vehicle-mounted storage battery to supplement vehicle-mounted electricity, and the storage battery and the vehicle-mounted storage battery can be integrated; the wireless power supply system can adopt the mode of solar energy and storage battery to supply power, and also can directly adopt the storage battery on the vehicle to directly supply power.
The solar energy is converted into electric energy to be stored in the storage battery, the storage battery is connected with a power line to each desk, and each desk is provided with a power management module, a wireless transmitting end module and an electric energy recording module. The user can put electric equipment such as cell-phone or notebook on the desktop and carry out wireless charging.
The following is a detailed description with reference to specific examples.
Fig. 3a is a side view of a seat structure of example 1 in which a wirelessly powered transmitting end device according to the present invention is provided in the seat. As shown in fig. 3a, in example 1, a foldable small table (a table) is disposed behind a backrest of a seat, a module 31 is disposed in the small table, and a module 32 is disposed in the backrest, where the module 31 may include a transmitting coil, so as to ensure that a user can charge an electrical device at a closer distance when placing the electrical device on the small table, and in addition, in the second way, a load recognition module may be disposed in the module 31, so as to ensure that an identifier of the electrical device is read at a close distance; in the module 32, a power management module, an electric energy recording module, a driving circuit, and the like may be included, and for the above-described first and second modes, a control circuit, a load detection module, a processor, a storage module, and the like may be further provided in the module 32. The wires of the storage battery connected to the circuit part can be routed in the legs of the chair, the circuit in the backrest and the coil and the identification module on the small table are connected through flexible wires, and a user on the back seat can use the device on the front seat to charge the electric equipment.
Fig. 3b is a top view of the seat structure of example 1 with a wirelessly powered transmitting end device according to the present invention disposed in the seat. As shown in fig. 3b, relevant circuits, such as a control circuit and a driving circuit, connected to the transmitting coil in the wireless power transmitting end circuit may be provided at the position a; a transmitting coil may be provided at position B in the table, a load identification module may be provided at position C in the table, a power recording module may be provided at position D, a power management module may be provided at position E, and a load detection module, a processor, a memory module, etc. may be provided in the backrest as well.
Fig. 4a is a side view of a seat structure of example 2 in which a wirelessly powered transmitting end device according to the present invention is provided in the seat. As shown in fig. 4a, in example 2, a small table (a placing table) which can be folded or not is arranged on the armrest of the chair, and a module 41 is arranged in the small table, wherein all the components in the wireless power supply transmitting terminal device can be arranged in the module 41. In addition, as for the second mode, the load identification module may be disposed in the module 41 to ensure that the identifier of the electrical device is read in a short distance.
Fig. 4b is a top view of a seat structure of example 2 in which a wirelessly powered transmitting end device according to the present invention is disposed in the seat. As shown in fig. 4b, in a similar manner to the arrangement of fig. 3b, relevant circuits, e.g., a control circuit, a driving circuit, connected to the transmitting coil in the wireless power supply transmitting end circuit may be arranged at the position a; a transmitting coil may be provided at position B in the table, a load identification module may be provided at position C in the table, a power logging module may be provided at position D, a power management module may be provided at position E, and a load detection module, processor, memory module, etc. may likewise be provided in the armrest.
In fig. 4b, the circuit part can be arranged on the armrest, the connection of the accumulator can be routed in the chair leg, and the connection of the circuit part and the coil and the identification module is also made by a flexible wire.
Moreover, it should be noted that the above is only a few examples, and in fact, the specific positions of the modules in the wireless power supply transmitting terminal device may be arbitrarily set in the seat, for example, each module may be set in the backrest, the armrest, the small table (object placing table), and the seat, as long as it is ensured that the modules can be reasonably connected with each other, and the wiring manner of the connection line from the storage battery to the wireless power supply transmitting terminal device is flexible, and is not limited to the wiring manner from the leg of the seat shown in the figure.
In addition, it should be noted that once the load identification module or the control circuit identifies information such as an identifier on the load, the information is sent to the electric energy recording module to record an identification code of the device, and at the same time, the electric energy recording module records electric energy and electric quantity information of the wireless electric energy transmission module, which is transmitted for the load, and packages the electric energy and electric quantity information with the device identification code, so that the packaged information can be stored on the storage module, and the information can also be transmitted to a transmission electric energy recording management center of a vehicle compartment through a wired network.
As shown in fig. 6, the power transmission recording circuit may be connected to the transmitting coil through a voltage detection circuit and a current detection circuit, and after the load identification module obtains the identifier of the electrical equipment, the identifier of the electrical equipment is identified by using a specially-configured equipment code identification circuit, and the transmitted power is calculated according to the voltage and current detection results of the voltage detection circuit and the current detection circuit on the transmitting coil.
In addition, in an example, a schematic diagram of the power management module and a connection relationship between the power management module and the wireless power transmission module are shown in fig. 7, the power management module may be divided into two parts, one is a power management chip, and the other is a power module, the power module is responsible for supplying power, the power management chip can control the power module to provide corresponding voltage for a driving circuit of a transmitting terminal, and the voltage output by the storage battery provides a working power for the power management chip; the transmitting end control circuit outputs corresponding signals to the power management chip according to the load level, and the transmitting end control circuit (namely, the control circuit) also provides frequency signals to the driving circuit; the power module converts the power provided by the storage battery into a working voltage provided by the transmitting end control circuit and the electric energy transmission recording module, so that the driving circuit provides corresponding driving voltage according to different loads. In another example, the power management chip of the power management module in the previous example may be integrated into the control circuit of the transmitting end, so that the power management module in this example is only used for supplying power, and the power supply control for the power management module is completely performed by the control circuit.
In order to simplify the circuit, the power supply module can also be managed by the MCU of the transmitting end driving circuit while managing energy transmission.
Fig. 8 shows a flow of wireless power transmission based on the first method. As shown in fig. 8, the following processing is specifically included:
the load detection module is used for detecting the load, and if the load detection module finds that the voltage and the current in the coil change and the handshaking between the system (the transmitting end) and the electrical equipment (the receiving end) is successful, the load is considered to be detected; then the transmitting end and the receiving end transmit signals, the transmitting end and the receiving end load information onto the coil to perform signal transmission, the signals are modulated onto the coil, the frequency of the coil is used as a carrier when energy is transmitted, and the transmitting end can judge the power level range of the load according to the frequency; if only the voltage and the current are changed, no signal is transmitted, and energy transfer cannot be carried out.
The transmitting end adjusts the voltage and the coil frequency of the driving circuit according to the power required by the load, and ensures that energy transmission is carried out according to the optimal parameters;
during the energy transmission process, load detection is continuously carried out, and once the load is changed, the load is taken away or replaced, and the system carries out load identification again.
Fig. 9 shows a flow of the system according to the embodiment of the present invention for device identification and power transmission recording based on the above-mentioned method two. As shown in fig. 9, the following processing is specifically included:
when equipment is identified, once the identification code (label information) of the electrical equipment is read, the code of the electrical equipment is recorded; if the identification code is not detected and the detection is not overtime, the detection of the identification code is continuously waited, if the identification code is not detected and the detection is overtime, the wireless power supply transmitting terminal equipment enters a standby state, and then once a load is placed near the wireless power supply transmitting terminal equipment, the identification code of the electrical equipment is read, and the standby state is released.
After the identification code is detected, recording the identification code, and simultaneously recording energy transmission electric quantity information transmitted by an MCU of the wireless power transmission module, or calculating the transmitted electric quantity according to an independent voltage and current test circuit;
once a change in load or a change in identification code is found, the device identification is re-performed and the identification code and amount of power transmitted is re-recorded.
The process of recording the power transmission in the first mode is similar to that shown in fig. 9, and is not described in detail herein.
According to the embodiment of the invention, the invention further provides a wireless power supply method of the electrical equipment.
As shown in fig. 10, the wireless power supply method of an electric appliance according to the present invention includes:
step S1001, under the condition that at least one wireless power supply transmitting terminal device needs to supply power to the electrical equipment, the wireless power supply transmitting terminal device identifies the electrical equipment needing to be charged and determines power supply parameters of the electrical equipment, wherein the wireless power supply transmitting terminal device is arranged in a seat;
step S1003, the power management module of the wireless power supply transmitting terminal equipment supplies power to the transmitting coil of the wireless power supply transmitting terminal equipment according to the determined power supply parameters;
step S1005, the transmitting coil receives the power supply from the power management module and generates a magnetic field to supply power to the electrical equipment.
The solar receiving device and/or the vehicle-mounted storage battery can store electric energy in the storage battery, and the storage battery provides the electric energy to the wireless power supply transmitting terminal device.
The processing of identifying the electrical equipment in at least one wireless power supply transmitting terminal device and determining the power supply parameters of the electrical equipment comprises the following steps: the control circuit of the wireless power supply transmitting terminal equipment identifies the electrical equipment through a handshake protocol based on a transmitting coil of the wireless power supply transmitting terminal equipment and a receiving coil of the electrical equipment; after the identification is successful, the transmitting coil of the wireless power supply transmitting terminal equipment receives the identification signal from the electrical equipment; the control circuit determines power supply parameters required by the electrical equipment according to the received identification signals and informs the power supply parameters to a power supply management module of the wireless power supply transmitting terminal equipment; the power management module supplies power to a driving circuit of the wireless power supply transmitting terminal equipment according to the power supply parameters notified by the control circuit; the driving circuit drives the transmitting coil of the wireless power supply transmitting terminal equipment to generate a magnetic field meeting the requirements of electrical equipment based on the power supply of the power management module.
On the other hand, the processing that at least one wireless power supply transmitting terminal device identifies the electrical equipment and determines the power supply parameters of the electrical equipment comprises: the load identification module of the wireless power supply transmitting terminal equipment acquires the identification of the electrical equipment in a wireless mode; the processor of the wireless power supply transmitting terminal equipment determines a power supply parameter corresponding to the acquired electrical equipment identifier according to a corresponding relation between the pre-stored electrical equipment identifier and the corresponding power supply parameter, and notifies the determined power supply parameter to a power supply management module of the wireless power supply transmitting terminal equipment; the power management module supplies power to a driving circuit of the wireless power supply transmitting terminal equipment according to the power supply parameters notified by the processor; the driving circuit drives the transmitting coil of the wireless power supply transmitting terminal equipment to generate a magnetic field meeting the requirements of electrical equipment based on the power supply of the power management module.
The method according to the present invention may further comprise other process flows, which have been described above for the system according to an embodiment of the present invention and will not be repeated here.
In summary, according to the technical solution of the present invention, the storage battery stores the electric energy obtained by the solar receiving device, and provides the stored electric energy to the wireless power supply transmitting terminal device, so that the electric device equipped with the receiving coil is identified and reasonably powered (including charging) by the magnetic field generated by the transmitting coil, thereby implementing effective power supply management. Meanwhile, the scheme of the invention can be applied to various rooms, vehicles and other environments, can be arranged in a seat, reduces the occupied space and is convenient for users to use; in addition, the power supply of the electrical equipment can be charged, and more effective and reasonable power supply management is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A wireless power supply system of electric equipment is characterized by comprising at least one wireless power supply transmitting terminal device, wherein the wireless power supply transmitting terminal device is arranged in a seat,
the wireless power supply transmitting terminal equipment is used for identifying the electrical equipment needing to be charged and determining power supply parameters of the electrical equipment; the wireless power supply transmitting terminal equipment comprises a power supply management module and a transmitting coil; the power management module is used for supplying power to the transmitting coil according to the determined power supply parameters; the transmitting coil is used for receiving the power supply of the power management module, generating a magnetic field and supplying power to the electrical equipment;
the power management module of the wireless power supply transmitting terminal equipment is connected with a preset power supply part, the power management module is used for receiving power supply of the power supply part, the power supply part comprises a storage battery and/or solar energy receiving equipment, and the wireless power supply transmitting terminal equipment is connected with the power supply part through a wire led out from a chair back, a seat part, an armrest or chair legs of the chair;
the seat is disposed in a vehicle or room in which the battery and the solar energy receiving device are disposed or attached;
the power management module of the wireless power supply transmitting terminal equipment is arranged in a backrest, a seat part, an armrest or a storage plate arranged on the seat, and a transmitting coil of the wireless power supply transmitting terminal equipment is arranged in the backrest, the seat part, the armrest or the storage plate arranged on the seat;
the wireless power supply transmitting terminal equipment comprises a wireless power transmission module, the wireless power transmission module comprises a control circuit, a driving circuit and the transmitting coil, wherein,
the control circuit is connected to the power management module, and is used for identifying the electrical equipment through a handshake protocol based on the transmitting coil and the receiving coil of the electrical equipment, receiving an identification signal from the electrical equipment through the transmitting coil after the electrical equipment is successfully identified, determining a power supply parameter required by the electrical equipment according to the identification signal, and notifying the determined power supply parameter to the power management module, wherein the identification signal is used for representing the identification of the electrical equipment, and/or the type of the electrical equipment, and/or the power supply parameter required by the electrical equipment;
the power management module is used for supplying power to the driving circuit according to the power supply parameters notified by the control circuit, and the driving circuit is used for driving the transmitting coil to generate a magnetic field meeting the requirements of the electrical equipment based on the power supply of the power management module;
and the load detection module is used for detecting the voltage and the current at the transmitting coil, judging whether electrical equipment needing power supply exists according to the detection result, and identifying the electrical equipment by the control circuit under the condition that the judgment result is yes.
2. The wireless power supply system of claim 1, wherein each wireless power supply transmitting terminal device further comprises a load identification module, a device code identification module, a control circuit and a driving circuit, the control circuit comprises a storage module and a processor, wherein,
the load identification module is used for reading the identifier of the electrical equipment in a wireless mode;
the equipment code identification module is used for demodulating according to the identification information read by the load identification module and determining the identification of the electrical equipment;
the storage module stores the identification of the electrical equipment and the corresponding power supply parameters;
the processor is used for determining a power supply parameter corresponding to the electrical equipment identifier according to the content stored by the storage module and notifying the determined power supply parameter to the power management module;
the identification signal is used for representing the identification of the electrical equipment, and/or the type of the electrical equipment, and/or the power supply parameter required by the electrical equipment.
3. The wireless power supply system according to claim 2, wherein the load identification module is an RFID reader, and the RFID reader reads an identifier of the electrical equipment by reading a tag preset on the electrical equipment; or,
the load identification module is a bar code reader, and the bar code reader reads the identification of the electrical equipment by reading a bar code arranged on the electrical equipment.
4. The wireless power supply system according to claim 1, further comprising:
and the electric energy recording module is used for detecting the voltage and the current at the transmitting coil during the power supply of the electrical equipment by the system, and obtaining the power consumption generated by the power supply of the electrical equipment according to the monitored current and voltage.
5. The wireless power supply system of claim 1, wherein the power recording module is further configured to determine a charge corresponding to the power consumption according to a predetermined billing method.
6. The wireless power supply system according to claim 1, wherein the wireless power supply transmitting end device further comprises a switch module, and the switch module is configured to control whether the power management module of the wireless power supply transmitting end device supplies power to the transmitting coil of the wireless power supply transmitting end device.
7. A wireless power supply method of an electrical device, comprising:
under the condition that at least one wireless power supply transmitting terminal device is required to supply power to the electrical equipment, the wireless power supply transmitting terminal device identifies the electrical equipment required to be charged and determines power supply parameters of the electrical equipment, wherein the wireless power supply transmitting terminal device is arranged in a seat;
the power management module of the wireless power supply transmitting terminal equipment supplies power to the transmitting coil of the wireless power supply transmitting terminal equipment according to the determined power supply parameters;
the transmitting coil receives the power supply of the power supply management module, generates a magnetic field and supplies power to the electrical equipment;
the power management module of the wireless power supply transmitting terminal equipment is connected with a preset power supply part, the power management module is used for receiving power supply of the power supply part, the power supply part comprises a storage battery and/or solar energy receiving equipment, and the wireless power supply transmitting terminal equipment is connected with the power supply part through a wire led out from a chair back, a seat part, an armrest or chair legs of the chair;
the seat is disposed in a vehicle or room in which the battery and the solar energy receiving device are disposed or attached;
the power management module of the wireless power supply transmitting terminal equipment is arranged in a backrest, a seat part, an armrest or a storage plate arranged on the seat, and a transmitting coil of the wireless power supply transmitting terminal equipment is arranged in the backrest, the seat part, the armrest or the storage plate arranged on the seat;
the wireless power supply transmitting terminal equipment comprises a wireless power transmission module, the wireless power transmission module comprises a control circuit, a driving circuit and the transmitting coil, wherein,
the control circuit is connected to the power management module, and is used for identifying the electrical equipment through a handshake protocol based on the transmitting coil and the receiving coil of the electrical equipment, receiving an identification signal from the electrical equipment through the transmitting coil after the electrical equipment is successfully identified, determining a power supply parameter required by the electrical equipment according to the identification signal, and notifying the determined power supply parameter to the power management module, wherein the identification signal is used for representing the identification of the electrical equipment, and/or the type of the electrical equipment, and/or the power supply parameter required by the electrical equipment;
the power management module is used for supplying power to the driving circuit according to the power supply parameters notified by the control circuit, and the driving circuit is used for driving the transmitting coil to generate a magnetic field meeting the requirements of the electrical equipment based on the power supply of the power management module;
the voltage and the current at the transmitting coil are detected, whether electrical equipment needing power supply exists is judged according to the detection result, and the control circuit identifies the electrical equipment under the condition that the judgment result is yes.
8. The wireless power supply method according to claim 7, wherein the processing of identifying the electrical equipment by the wireless power supply transmitting end equipment and determining the power supply parameter of the electrical equipment comprises:
the control circuit of the wireless power supply transmitting terminal equipment is based on a transmitting coil of the wireless power supply transmitting terminal equipment and a receiving coil of the electrical equipment and is identified with the electrical equipment through a handshake protocol;
after the identification is successful, the transmitting coil of the wireless power supply transmitting terminal equipment receives the identification signal from the electrical equipment;
the control circuit determines power supply parameters required by the electrical equipment according to the received identification signals and informs the power supply parameters to a power supply management module of the wireless power supply transmitting terminal equipment;
the power management module supplies power to a driving circuit of the wireless power supply transmitting terminal equipment according to the power supply parameters notified by the control circuit;
the driving circuit drives the transmitting coil of the wireless power supply transmitting terminal equipment to generate a magnetic field meeting the requirements of the electrical equipment based on the power supply of the power management module.
9. The wireless power supply method according to claim 7, wherein the at least one wireless power supply transmitting terminal device identifies the electrical device, and the process of determining the power supply parameter of the electrical device comprises:
the load identification module of the wireless power supply transmitting terminal equipment acquires the identifier of the electrical equipment in a wireless mode;
the processor of the wireless power supply transmitting terminal equipment determines a power supply parameter corresponding to the acquired electrical equipment identifier according to a corresponding relation between the pre-stored electrical equipment identifier and the corresponding power supply parameter, and notifies the determined power supply parameter to a power supply management module of the wireless power supply transmitting terminal equipment;
the power management module supplies power to a driving circuit of the wireless power supply transmitting terminal equipment according to the power supply parameters notified by the processor;
the driving circuit drives the transmitting coil of the wireless power supply transmitting terminal equipment to generate a magnetic field meeting the requirements of the electrical equipment based on the power supply of the power management module.
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| TWI506912B (en) * | 2013-08-02 | 2015-11-01 | Simplo Technology Co Ltd | System of wireless power transmission and method thereof |
| CN104505957A (en) * | 2014-12-25 | 2015-04-08 | 新东圳（苏州）智能科技有限公司 | Wireless power supply communication device |
| CN106033200A (en) * | 2015-03-17 | 2016-10-19 | 联想(北京)有限公司 | Control method and power supply equipment |
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| CN111600294A (en) * | 2020-07-10 | 2020-08-28 | 苏州鼎威新能源有限公司 | Starting control method and device of solar energy utilization equipment and storage medium |
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