CN116526693A - Power supply identification method, device, related equipment and medium - Google Patents

Power supply identification method, device, related equipment and medium Download PDF

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Publication number
CN116526693A
CN116526693A CN202210079903.8A CN202210079903A CN116526693A CN 116526693 A CN116526693 A CN 116526693A CN 202210079903 A CN202210079903 A CN 202210079903A CN 116526693 A CN116526693 A CN 116526693A
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CN
China
Prior art keywords
power supply
power
equipment
pulse signal
transmitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210079903.8A
Other languages
Chinese (zh)
Inventor
霍兆镜
张健彬
徐锦清
李明
岑长岸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Air Conditioning Equipment Co Ltd
Foshan Shunde Midea Electric Science and Technology Co Ltd
Original Assignee
GD Midea Air Conditioning Equipment Co Ltd
Foshan Shunde Midea Electric Science and Technology Co Ltd
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 GD Midea Air Conditioning Equipment Co Ltd, Foshan Shunde Midea Electric Science and Technology Co Ltd filed Critical GD Midea Air Conditioning Equipment Co Ltd
Priority to CN202210079903.8A priority Critical patent/CN116526693A/en
Publication of CN116526693A publication Critical patent/CN116526693A/en
Pending legal-status Critical Current

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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
    • 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
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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

Abstract

The invention discloses a power supply identification method, a device, related equipment and a medium, wherein the method comprises the following steps: driving the power supply equipment to work by adopting a first pulse signal, and collecting the current first transmission power of the power supply equipment; driving the power supply equipment to work by adopting a second pulse signal, and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, and/or the pulse width of the first pulse signal is larger than that of the second pulse signal; and when the second transmitting power meets the preset power condition, determining that the electric equipment currently powered by the power supply equipment supplies power for the cooking equipment. By adopting the invention, the current powered equipment or the type thereof can be conveniently and accurately identified.

Description

Power supply identification method, device, related equipment and medium
Technical Field
The invention belongs to the field of wireless power supply, and particularly relates to a power supply identification method, a device, related equipment and a medium.
Background
In recent years, wireless charging technology has been rapidly developed, and various wireless charging products (also called wireless electric devices) have been developed in succession because of their characteristics of non-contact, no electric connection, convenient operation, and the like.
However, in practice it has been found that the charging parameters (e.g. charging current or charging voltage etc.) required by different wireless consumers are different due to their different types. Therefore, when the power supply device (may also be referred to as a charging device) is required to supply/charge the wireless power consumption device, the type of the wireless power consumption device currently supported by the power supply device needs to be identified so as to avoid damaging the wireless power consumption device.
Disclosure of Invention
The invention provides a power supply identification method, a device, related equipment and a medium, which can conveniently and accurately identify electric equipment powered by power supply equipment currently supported.
In a first aspect, an embodiment of the present invention provides a power supply identification method, which is applied to a power supply device, including:
driving the power supply equipment to work by adopting a first pulse signal, and collecting the current first transmission power of the power supply equipment;
driving the power supply equipment to work by adopting a second pulse signal, and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, and/or the pulse width of the first pulse signal is larger than that of the second pulse signal;
When the second transmitting power meets the preset power condition, determining that the electric equipment currently powered by the power supply equipment is cooking equipment, wherein the preset power condition at least comprises that the second transmitting power is smaller than the first transmitting power.
According to the embodiment of the invention, different pulse signals are adopted to drive the power supply equipment to work, the corresponding transmitting power of the power supply equipment is acquired, and then the current power supply (namely, the current supported power supply) electric equipment and the type thereof of the power supply equipment are determined according to the acquired transmitting power, so that the type of the current power supply electric equipment of the power supply equipment can be intelligently and conveniently identified, the corresponding power supply mode/output power of the power supply equipment is automatically or manually regulated, the damage to the electric equipment when the current output power of the power supply equipment is larger is avoided, the safety of the electric equipment is guaranteed, and meanwhile, the power supply can be safely and reliably carried out for the electric equipment with different properties and different power (namely, different types).
In some embodiments, when the second transmitting power meets a preset power condition, determining that the electric device currently powered by the power supply device is a cooking device includes:
When the second transmitting power meets the preset power condition, the first pulse signal and the second pulse signal are adjusted;
repeatedly executing the steps of driving the power supply equipment to work by adopting a first pulse signal, collecting first transmission power of the power supply equipment, driving the power supply equipment to work by adopting a second pulse signal, and collecting second transmission power of the current power supply equipment;
and when the second transmitting power meets a preset power condition and the repetition number reaches a preset frequency threshold, determining that the electric equipment currently powered by the power supply equipment is cooking equipment.
In the embodiment of the invention, in order to avoid detection errors and ensure power supply safety, the method can repeatedly acquire the transmitting power of the power supply equipment under different pulse signals for a plurality of times, further determine the type of the electric equipment for a plurality of times according to each acquired transmitting power, thereby being beneficial to improving the power supply safety of the electric equipment and ensuring that the electric equipment is not damaged.
In some embodiments, the method further comprises:
and when the second transmitting power does not meet the preset power condition, determining that the electric equipment currently powered by the power supply equipment is electronic equipment, wherein the power supply power required by the electronic equipment and the power supply power required by the cooking equipment are different.
In the embodiment of the invention, if the second transmitting power is judged to not meet the preset power condition in each repeated execution process, the current powered electric equipment of the power supply equipment can be judged to be electronic equipment except cooking equipment. Therefore, the type of the current power supply electric equipment of the power supply equipment can be simply, conveniently, accurately and efficiently identified directly according to the transmitting power of the power supply equipment when different driving pulse signals are generated, so that the power supply of the electric equipment is not damaged, and the safety of the electric equipment is further guaranteed.
In some embodiments, the preset power condition further comprises: the second transmitting power is larger than a preset power threshold, and the preset power threshold is determined according to the exciting power of a wireless transmitting circuit in the power supply equipment.
In some embodiments, the wireless transmitting circuit comprises a transmitting coil, m contact leads of the transmitting coil and m switches connected with the m contact leads, the exciting power is generated by controlling the on-off of the m switches to control the inductance of the transmitting coil connected into the wireless transmitting circuit, and m is a positive integer.
In the embodiment of the invention, the inductance in the transmitting coil access circuit can be controlled by controlling the switch in the wireless transmitting circuit of the power supply equipment, so that the excitation power of the wireless transmitting circuit is controlled, and the type of the electric equipment currently powered by the power supply equipment is influenced and judged. Correspondingly, after the type of the electric equipment currently powered by the power supply equipment is determined, if the judged type of the equipment is different from the type of the electric equipment to be powered, the on-off of the m switches can be controlled again to switch the transmitting power of the power supply equipment, so that the power supply equipment can currently support the power supply of the electric equipment to be powered.
In some embodiments, before the driving the power supply device to operate by using the first pulse signal and collecting the current first transmission power of the power supply device, the method further includes:
detecting whether the power supply equipment establishes communication with electric equipment or not;
if not, the power supply equipment enters a target mode, and the steps of driving the power supply equipment to work by adopting the first pulse signal and collecting the current first transmission power of the power supply equipment are executed.
In the embodiment of the invention, whether the power supply equipment establishes communication with the electric equipment or not can be detected firstly, if not, the target mode, such as a pot detection mode, can be entered, and the scheme of the invention is executed so as to supply power to various electric equipment more simply, effectively and safely.
In some embodiments, the power supply device includes a wireless transmit circuit including a transmit coil having m contact leads and m switches connected to the m contact leads, m being a positive integer, the method further comprising, prior to the power supply device entering a target mode:
acquiring preset transmitting power of the power supply equipment;
and when the preset transmitting power is not in the preset power range, controlling a target switch in the m switches to be closed, so that the preset transmitting power of the power supply equipment is in the preset power range when the target switch is closed.
In the embodiment of the invention, the current transmitting power of the whole power supply equipment can be controlled by adjusting the opening and closing of the m switches, so that the power supply equipment can supply power in different power ranges, the power demand of different electric equipment can be met, and the use experience of users can be improved better.
In some embodiments, the power supply device includes a wireless transmit circuit including a transmit coil having at least a first contact lead and a second contact lead, a first switch connected to the first contact lead, and a second switch connected to the second contact lead, the method further comprising, prior to the power supply device entering a target mode:
acquiring preset transmitting power of the power supply equipment;
when the preset transmitting power is larger than a set value, the first switch is controlled to be opened, and the second switch is controlled to be closed, so that the preset transmitting power is smaller than or equal to the set value.
In the embodiment of the invention, the preset transmitting power of the power supply equipment can be adjusted by controlling the opening and closing of the first switch and the second switch respectively, so that the use requirements of different electric equipment are met, and the use experience of a user is better improved.
In some embodiments, the method further comprises:
when the power supply equipment and the electric equipment are detected to establish communication, acquiring equipment information of the electric equipment;
and determining the type of the electric equipment according to the equipment information of the electric equipment.
In the embodiment of the invention, when the power supply equipment and the electric equipment are in communication connection, the type of the electric equipment can be directly determined according to the equipment information of the electric equipment so as to better supply power to the electric equipment and ensure the safety of power supply of the electric equipment.
In a second aspect, an embodiment of the present invention provides a power supply identification apparatus, including:
the first processing module is used for driving the power supply equipment to work by adopting a first pulse signal and collecting the current first transmission power of the power supply equipment;
the second processing module is used for driving the power supply equipment to work by adopting a second pulse signal and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, and/or the pulse width of the first pulse signal is larger than that of the second pulse signal;
And the power supply determining module is used for determining that the electric equipment currently powered by the power supply equipment is cooking equipment when the second transmitting power meets the preset power condition, wherein the preset power condition at least comprises that the second transmitting power is smaller than the first transmitting power.
According to the embodiment of the invention, different pulse signals are adopted to drive the power supply equipment to work, the corresponding transmitting power of the power supply equipment is acquired, and the type of the current power supply equipment of the power supply equipment is determined according to the acquired transmitting power, so that the type of the current power supply equipment of the power supply equipment can be intelligently and conveniently identified, the damage to the power supply equipment when the current output power of the power supply equipment is larger is avoided, and the safety of the power supply equipment is guaranteed.
The descriptions or not described in the embodiments of the present invention may be referred to the relevant descriptions in the foregoing method embodiments, which are not repeated herein.
In a third aspect, an embodiment of the present invention provides a power supply device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the method according to any implementation manner of the first aspect when executing the program.
In a fourth aspect, embodiments of the present invention provide a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method provided in the first aspect.
In a fifth aspect, an embodiment of the present invention provides an electrical home appliance, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to implement the method according to any one of the embodiments of the first aspect.
In a sixth aspect, an embodiment of the present invention provides an air conditioner, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor executes the program to implement the method according to any one of the embodiments of the first aspect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a power supply system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a wireless charger according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a wireless energy storage device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a wireless mobile refrigeration air conditioner according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a wireless power supply system according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a wireless transmitting circuit according to an embodiment of the present invention.
Fig. 7 is a schematic plan view of a wire coil used in a wireless transmitting circuit according to an embodiment of the present invention.
Fig. 8 is a schematic flow chart of a power supply identification method according to an embodiment of the present invention.
Fig. 9 is a voltage variation curve of a power supply device during energy storage according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a power supply identification device according to an embodiment of the present invention.
Fig. 11 is a schematic structural diagram of an electrical device according to an embodiment of the present invention.
Detailed Description
In view of the technical problem that the type of a wireless power supply product (electric equipment) currently powered by power supply equipment cannot be accurately identified in the prior art, the embodiment of the invention provides a power supply identification method, a device, equipment and a medium, wherein a first pulse signal is adopted to drive the power supply equipment to work, and the first transmission power of the current power supply equipment is acquired; determining the power supply equipment to work by adopting a second pulse signal, and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, or the pulse width of the first pulse signal is larger than that of the second pulse signal; when the second transmitting power meets the preset power condition, the current powered electric equipment of the power supply equipment is determined to be the cooking equipment, so that the type of the current powered electric equipment of the power supply equipment can be conveniently and accurately identified, the power supply of the electric equipment is protected from being damaged, and the user experience is improved.
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The power supply identification method, device and system provided in the embodiments of the present specification will be described in detail below with reference to the accompanying drawings and with reference to specific embodiments.
Fig. 1 is a schematic structural diagram of a power supply system according to an embodiment of the present invention. Included in the system shown in fig. 1 are a power supply device 100 and a powered device 200 (also referred to as a wireless charging product, i.e., a device to be powered). The power supply device 100 can wirelessly supply power to the electric device 200 through a wireless power transmission technology. In practical applications, the power supply apparatus 100 may be any one of the following: wireless chargers, wireless energy storage devices, or other energy storage or power supply devices that support powering other devices, etc. The powered device 200 may be any one of the following: the invention is not limited by wireless energy storage devices, air conditioners, cooking devices (e.g., cookware), mobile devices (e.g., cell phones, notebooks, etc.), or other electronic devices that support electricity or energy storage.
For example, please refer to fig. 2-4 for schematic structural diagrams of the wireless charger, the wireless energy storage device and the air conditioner, respectively. The wireless charger shown in fig. 2 includes a transmitting coil 201 and a transmitting circuit 202 (also referred to as a transmitting control board) electrically connected, and an input end of the transmitting circuit is electrically connected to an external power source, for example, an ac power source of 220V in the drawing. In practical application, the external power supply transmits the electric energy signal to the transmitting coil through the transmitting circuit, and then the electric energy signal is transmitted through the transmitting coil, so that corresponding wireless electric energy transmission is realized.
The wireless energy storage device shown in fig. 3 includes a transmission coil 301 (specifically, a receiving/transmitting coil), a transmission circuit 302 (specifically, a receiving/transmitting circuit, also referred to as an electrical control board), and a battery pack 303, which may include a battery module and a battery management system (Battery Management System, BMS), electrically connected in sequence. The wireless energy storage device supports charging and discharging of electric energy, in other words, when the wireless energy storage device discharges, the wireless energy storage device plays a role of power supply equipment to supply power for other electric equipment. When the wireless energy storage device supplies power, the wireless energy storage device plays a role of electric equipment, and supplies power for the battery pack and stores electric energy.
The air conditioner shown in fig. 4 comprises a receiving coil 401, an air conditioner control circuit 402 (also referred to as an air conditioner control board) and air conditioner peripheral equipment 403, which are electrically connected in sequence, wherein the air conditioner peripheral equipment refers to other devices or equipment in the air conditioner except for the air conditioner control circuit, such as a fan, a motor, a display screen, a compressor and the like of the air conditioner. In practical application, the air conditioner receives the electric energy signal emitted by the wireless transmitting end (such as a wireless charger or wireless energy storage equipment) through the receiving coil, so as to drive the air conditioner control circuit and the air conditioner peripheral equipment to work normally by using the received electric energy signal.
Fig. 5 is a schematic circuit diagram of a wireless power supply system according to an embodiment of the invention. The wireless power supply system as shown in fig. 5 includes a wireless transmitting circuit 500 and a wireless receiving circuit 600. In practical applications, the wireless transmitting circuit 500 may be specifically an internal circuit of the power supply device 100, and the wireless receiving circuit 600 may be specifically an internal circuit of the electric device 200.
As shown in fig. 5, the wireless transmitting circuit 500 includes an inverter circuit 501 and a first resonant circuit 502 electrically connected, wherein the inverter circuit 501 includes, but is not limited to, a full bridge rectifier circuit, a half bridge rectifier circuit, or other rectifier circuits supporting direct to alternating current. As shown in the figure, the inverter circuit 501 is exemplified by a full-bridge rectifier circuit (also referred to as an inverter), and the rectifier circuit 501 includes 4 bridge-connected power devices, Q1 to Q4 are shown, but the present invention is not limited thereto. The power device may be any one of an IGBT (Insulated Gate Bipolar Transistor ), a field effect MOS transistor, a triode, and the like. The first resonant circuit 502 includes a transmitting coil (i.e., inductance LT) and a first capacitance CT connected in series, and is connected between two bridge arm center points of the inverter circuit.
The wireless receiving circuit 600 includes a second resonant circuit 602, a rectifying circuit 601 and a load device RL electrically connected in sequence, wherein the rectifying circuit 601 is similar to the inverter circuit 501, and the description thereof is omitted. The rectifying circuit 601 includes 4 bridge-connected power devices, shown as Q5-Q8, respectively. Optionally, the two output ends of the rectifying circuit may be further connected in parallel with a filter capacitor E1. The second resonant circuit 602 includes a receiving coil (i.e., inductance Lr) and a second capacitance Cr connected in series and is connected between two bridge arm center points of the rectifying circuit.
In practical use, the wireless transmitting circuit 500 rectifies a dc signal provided by the external power supply Pbus into a corresponding ac signal through the inverter circuit, and then wirelessly transmits the ac signal to the wireless receiving circuit 600 through the transmitting coil LT. Correspondingly, the wireless receiving circuit 600 receives the corresponding ac signal through the receiving coil Lr, and rectifies the ac signal into a corresponding dc signal through the rectifying circuit, so that the load device RL can work normally.
Fig. 6 is a schematic diagram of another possible wireless transmitting circuit according to an embodiment of the present invention. As shown in fig. 6, the wireless transmitting circuit 500 includes an inverter circuit 501 and a first resonant circuit 502 that are electrically connected, and the inverter circuit 501 may be correspondingly described with reference to fig. 5, which is not repeated herein. The first resonant circuit 502 includes a transmitting coil (i.e., an inductance LT), where the number of coils (i.e., inductance) that the transmitting coil is connected to the wireless transmitting circuit is adjustable, specifically, for example, m contact leads are disposed on the transmitting coil, and m switches that control the connection of the m contact leads are connected to the transmitting coil, where the switches and the contact leads are in a one-to-one correspondence, i.e., one switch controls one contact lead correspondingly, and m is a positive integer set by the system in a self-defining manner. The invention can control the access of the m contact leads by controlling the opening and closing of the m switches, thereby controlling the inductance of the transmitting coil access circuit to change/influence the transmission efficiency of the wireless transmitting circuit.
As illustrated in fig. 6, the description of the content is given by taking m=2 as an example, but the content is not limited thereto. Referring to fig. 7, a schematic diagram of a possible coil of the transmit coil LT is shown. The transmitting coil LT shown in fig. 7 may be specifically a coil composed of two coils (shown as coil 1 and coil 2), and three taps (i.e., contact leads) are provided on the coil, which are shown as lead 1, lead 2 and lead 3, respectively. Wherein coil 1 represents the wire coil between lead 1 and lead 2, and coil 2 represents the wire coil between lead 1 and lead 3.
Referring to fig. 6, the first resonant circuit 502 shown in fig. 6 includes a transmitting coil LT, 3 contact leads of the transmitting coil LT, and a lead 1, a lead 2, and a lead 3, respectively, a capacitor CT1, a capacitor CT2, a first switch S1, and a second switch S2 are shown. The first switch S1 and the capacitor CT1 are connected in series, and then electrically connected to the lead 2 of the transmitting coil LT. The second switch S2 and the capacitor CT2 are connected in series, and then connected to the transmitting coil LT at the point 1, and the first resonant circuit 502 is electrically connected between the two bridge arm center points of the inverter circuit 501.
In practical application, when the switch S1 is closed, the lead 1 and the lead 2 form a large-medium power transmission inductor (the power of the electric energy transmitted by the inductor exceeds the preset power) and are connected to the wireless transmitting circuit 500. The inverter circuit 501 in the wireless transmission circuit 500 operates to inject a high-frequency pulse signal into the transmission coil LT, and resonates with the transmission coil LT and the capacitor CT1, so that the transmission coil LT transmits wireless power to the outside. Conversely, when the switch S2 is closed, the lead 1 and the lead 3 form a low-power transmission inductor (which transmits electric energy power not exceeding the preset power) to be connected into the wireless transmitting circuit 500. The number of coils NT2 and the inductance LT2 between the lead 1 and the lead 3 are larger than the number of coils NT1 and the inductance LT1 between the lead 1 and the lead 2. Assuming that the distance d and the radius r of the coil disc remain unchanged, the mutual inductance M between the transmitting coil LT and the receiving coil Lr increases as the number of turns NT and Nr of the coil increases, wherein the calculation formula of the mutual inductance M is shown in the following formula (1):
Wherein M is the mutual inductance coefficient between the transmitting coil LT and the receiving coil Lr, D is the distance between coil discs, r T For the coil radius of the transmitting coil, r r For the coil radius of the receiving coil, N T For the number of turns of the coil of the transmitting coil, nr is the number of turns of the coil of the receiving coil, mu 0 Is vacuum magnetic permeability. Typically, μ 0 ＝4π×10 -7 N/A 2 。
It can be appreciated that the mutual inductance M and the excitation inductance exist as followsRelationship:where Lm is the excitation inductance of the transmitting coil LT, and LT is the excitation inductance of the receiving coil Lr. From this, it is known that when the mutual inductance M increases, the excitation inductance Lm will increase, and accordingly the excitation current will decrease. In this case, when the wireless transmitting circuit 500 is used to supply power to the electric device, in order to ensure the safety of the electric device, the type of the electric device needs to be identified and judged to supply power to the electric device corresponding to low power or high and medium power.
It should be noted that, in order to control the strength of the electric energy signal received by the wireless receiving circuit 600, the wireless receiving circuit 600 may also change the inductance value of the receiving coil (inductance Lr) connected to the circuit, and similarly, the invention may also set a plurality of contact leads and a plurality of switches in the receiving coil, and correspondingly control the inductance value of the circuit connected to the plurality of contact leads in the receiving coil by controlling the opening and closing of the plurality of switches, thereby affecting the resonant power and affecting the strength of the wireless receiving circuit 600 receiving the electric energy signal, which may be specifically referred to the related description in fig. 6 and 7 and will not be repeated here.
Based on the foregoing embodiments of fig. 1 to fig. 7, please refer to fig. 8, which is a schematic flow chart of a power supply identification method according to an embodiment of the present invention. The method as described in fig. 8 is applied to a power supply device, and comprises the following implementation steps:
s801, driving the power supply equipment to work by adopting a first pulse signal, and collecting the current first transmission power of the power supply equipment.
After detecting that the power supply equipment enters a preset target mode (such as a pot detection mode), the invention can drive the power supply equipment (namely a wireless transmitting circuit) to work by adopting a first pulse signal, and can acquire and record the current first transmitting power Pst of the power supply equipment.
S802, driving the power supply equipment to work by adopting a second pulse signal, and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, and/or the pulse width of the first pulse signal is larger than that of the second pulse signal.
Further, the invention can adopt a second pulse signal to drive the power supply equipment to work, and collect and record the second transmitting power Pck of the current power supply equipment. The first pulse signal is different from the second pulse signal, specifically, the first pulse signal may be a pulse signal with frequency f and/or pulse width D, and the second pulse signal may be a pulse signal with frequency f+f0 and/or pulse width D-D0. Wherein f0 and D0 are positive numbers, and f and D are parameters set by system customization, for example, set according to actual requirements of the system.
It will be appreciated that it is assumed that the power supply device uses the first pulse signal to supply power to the powered device. When the electric equipment is electronic equipment, because the energy storage capacitor is arranged in the electronic equipment, the voltage of the energy storage capacitor is increased and can be kept for a period of time, and the first transmission power of the recordable power supply equipment is Pst. Then, the second pulse signal is adopted to drive the power supply equipment (i.e. reduce the transmitting power), if the electric equipment is electronic equipment, the bus voltage of the receiving end is higher at this moment, i.e. the bus voltage of the load equipment RL of the wireless receiving circuit is higher, and the energy of the power supply equipment (i.e. the wireless transmitting circuit) cannot be transmitted to the wireless receiving circuit side, as shown in fig. 9, and the second transmitting power of the power supply equipment is recorded at this moment.
Fig. 9 is a schematic diagram showing a voltage variation curve of a wireless receiving circuit (also referred to as a receiving-end energy storage capacitor). As shown in fig. 9, in the period 0-T1 which belongs to the power supply stage of the storage capacitor in the wireless receiving circuit, the voltage increases with the increase of time. The period T1-T2 belongs to the high-voltage maintaining stage of the energy storage capacitor, and the voltage is unchanged along with the change of time. The period T2-T3 belongs to a load property detection stage, the energy storage capacitor releases electric energy to supply power for load equipment, and the voltage is reduced along with the increase of time. The period of T3-T4 is the normal operation period, the voltage of the energy storage capacitor is kept stable and does not change along with the change of time, and the period belongs to the period that the electric energy emitted by the wireless transmitting circuit can not be received and is kept stable for a long time.
S803, when the second transmitting power meets a preset power condition, determining that electric equipment currently powered by the power supply equipment is cooking equipment, wherein the preset power condition at least comprises that the second transmitting power is smaller than the first transmitting power.
After the first transmitting power Pst and the second transmitting power Pck are acquired, the type of the electric equipment can be judged by judging the size of the second transmitting power Pck. Specifically, when the second transmitting power Pck meets the preset power condition, the method determines that (the type of) the electric equipment currently powered by the power supply equipment is the cooking equipment, namely the electric equipment currently powered by the power supply equipment is the cooking equipment. Otherwise, when the second transmitting power Pck does not meet the preset power condition, it may be determined that (the type of) the electric equipment currently powered by the power supply device is an electronic device, and the power supply powers required by the electronic device and the cooking device are different.
In practical applications, the preset power condition is set by system customization, which may be, for example, that the second transmission power Pck is smaller than the first transmission power Pst, and the second transmission power Pck is greater than a preset power threshold (for example, pr+pm), etc. That is, the preset power threshold (pr+pm) < second transmission power Pck < first transmission power Pst. The preset power threshold is determined according to an excitation power Pm of a wireless transmitting circuit in the power supply device, where the excitation power Pm is generated by a transmitting coil LT in the wireless transmitting circuit 500. Referring to fig. 6, m contact leads and m switches are disposed on the transmitting coil LT in the wireless transmitting circuit 500, where m is a positive integer. The excitation power Pm may specifically be generated by controlling on/off of the m switches to control the inductance of the m contact leads into the wireless transmission circuit 500.
It can be appreciated that, when the electric device is a cooking device, the second transmitting power Pck will be greater than the exciting power Pm of the transmitting coil LT (i.e. the transmitting power Pm when there is no foreign matter between the coils of the transmitting coil LT), in order to ensure the detection without error or the accuracy of the detection, a preset residual value Pr may be added to Pm, where Pr is a positive number greater than 0, and the sum of Pm and Pr is smaller than the first transmitting power Pst. In other words, in order to ensure the accuracy of the identification of the electric equipment, the preset power threshold value in the invention may be the sum of Pm and Pr.
It can be understood that, in order to ensure the accuracy of detecting the type of the electric equipment currently powered by the power supply equipment, the present invention may repeatedly execute the above steps S801 and S802 multiple times, so as to avoid the occurrence of errors in detection caused by magnetic field interference or other factors. Specifically, in step S803, when it is determined that the second transmission power Pck meets the preset power condition, the present invention may repeat the steps of steps S801 to S802 without adjusting the first pulse signal and the second pulse signal. Or, to better and more accurately implement classification and identification of the electric equipment, the present invention may also adjust the first pulse signal and the second pulse signal, for example, change the frequencies and/or pulse widths of the first pulse signal and the second pulse signal, etc., specifically, for example, the adjusted first pulse signal may be a pulse signal with a frequency f 'and/or a pulse width D', and the adjusted second pulse signal may be a pulse signal with a frequency f '+f0 and/or a pulse width D' -D0, etc., where f, f ', D and D' are different, and the difference between each may be set by system customization, and the present invention is not limited thereto. After adjusting the first pulse signal and the second pulse signal, steps S801 to S802 may be repeatedly performed. When the second transmitting power Pck meets a preset power condition and the repetition number reaches a preset frequency threshold n (for example, n is equal to 5), the invention can determine that (the type of) the electric equipment currently powered by the power supply equipment is cooking equipment, such as cookware, etc. Otherwise, when the repetition number does not reach the preset number threshold, repeating steps S801-S803 until the repetition number reaches the preset number threshold.
Accordingly, in the process of repeatedly executing each time, when the second transmitting power Pck is judged to not meet the preset power condition, the invention can determine that (the type of) the electric equipment currently powered by the power supply equipment is electronic equipment, such as energy storage equipment, air conditioner or other mobile equipment.
Some alternative embodiments to which the invention relates are described below.
In some alternative embodiments, before step S801, the present invention may detect whether the power supply device establishes a communication connection with a powered device. If not, the power supply device may enter a preset target mode, for example, a pan detection mode, and continue to execute the step S801 of the present invention. On the contrary, when the power supply equipment and the electric equipment are in communication connection, the invention can acquire the equipment information of the electric equipment, directly analyze and acquire the type of the electric equipment of the current communication connection of the power supply equipment according to the equipment information of the electric equipment, for example, the electric equipment is an air conditioner or mobile equipment and the like.
In practical application, after the power supply device is turned on, the user can be supported to select a corresponding power supply mode. Correspondingly, the power supply equipment can receive the power supply mode selected by the user, so that the power supply equipment can conveniently supply power to the electric equipment according to the power supply mode. The power supply mode may also be called a power supply mode, and may be set by a system in a self-defining manner, for example, a high-power supply mode and a low-power supply mode, wherein the high-power supply mode supports power supply to high-power devices, for example, air conditioners, mobile devices and other electronic devices, and the low-power supply mode supports power supply to low-power devices, for example, cooking devices and the like.
Further optionally, the invention can control the power supply equipment to enter a communication mode, detect whether the power supply equipment is in communication connection with the electric equipment, and if so, acquire the equipment information of the electric equipment through communication, and directly analyze the type of the electric equipment according to the equipment information of the electric equipment. Otherwise, when the power supply device does not establish communication connection with the electric equipment, the scheme of steps S801-S803 of the scheme of the invention can be entered, and the type of the electric equipment currently powered by the power supply device can be detected offline.
In some alternative embodiments, the power supply device as described in fig. 6 includes a wireless transmit circuit including a transmit coil having m contact leads and m switches connected to the m contact leads, m being a positive integer. It can be appreciated that when any one of the m switches is turned on, the inductance of the transmitting coil connected to the wireless transmitting circuit is different, so as to affect the difference of the transmitting power of the wireless transmitting circuit (i.e. the power supply device), i.e. the power supply device is in different power supply modes. The present invention may also obtain a preset transmit power of the power supply device before the power supply device enters the target mode. When the preset transmitting power is detected not to be in the preset power range, the target switch in the m switches can be controlled to be closed, and the other switches are controlled to be opened, so that the preset transmitting power of the power supply equipment is in the preset power range when the target switch is closed, namely in a corresponding power supply mode, and the power supply equipment supplies power safely to electric equipment of a corresponding type.
In some alternative embodiments, referring to fig. 7, taking m as 2 as an example, the wireless transmitting circuit includes a transmitting coil having at least a first contact lead 1 and a second contact lead 2, a first switch S1 connected to the first contact lead, and a second switch S2 connected to the second contact lead 2. Before the power supply equipment enters a target mode, the invention can acquire the preset transmitting power of the power supply equipment, and when the preset transmitting power is detected to be larger than a preset set value, the first switch S1 can be controlled to be opened, and the second switch S2 can be controlled to be closed, so that the preset transmitting power is smaller than or equal to the set value, namely the power supply equipment is in a low-power supply mode for supplying power, and the low-power supply mode refers to a working mode that the transmitting power of the power supply equipment is smaller than or equal to the set value. When the preset transmitting power of the power supply equipment is larger than a set value, the power supply equipment is in a high-power supply mode for supplying power, and the high-power supply mode refers to a working mode that the transmitting power of the power supply equipment is larger than the set value.
By implementing the embodiment of the invention, the power supply equipment is driven to work by adopting the first pulse signal, and the current first transmission power of the power supply equipment is acquired; driving the power supply equipment to work by adopting a second pulse signal, and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, and/or the pulse width of the first pulse signal is larger than that of the second pulse signal; when the second transmitting power meets the preset power condition, determining that the electric equipment currently powered by the power supply equipment is cooking equipment, wherein the preset power condition at least comprises that the second transmitting power is smaller than the first transmitting power. In the scheme, the power supply equipment is driven to work by adopting different pulse signals, the transmitting power corresponding to the power supply equipment is collected, and the type of the electric equipment currently powered by the power supply equipment is determined according to the collected transmitting powers, so that the type of the electric equipment currently powered by the power supply equipment can be intelligently and conveniently identified, the corresponding power supply mode/output power of the power supply equipment is automatically or manually adjusted, the electric equipment is prevented from being damaged when the current output power of the power supply equipment is larger, the safety of the electric equipment is guaranteed, and meanwhile, the electric equipment can be safely and reliably powered by electric equipment with different properties and different powers (namely different types).
Based on the same inventive concept, the embodiments of the present disclosure provide a power supply identification device, as shown in fig. 10, including: a first processing module 901, a second processing module 902, and a power supply determination module 903, wherein:
the first processing module 901 is configured to drive the power supply device to work by using a first pulse signal, and collect a first transmission power of the current power supply device;
the second processing module 902 is configured to drive the power supply device to operate by using a second pulse signal, and collect a second transmission power of the current power supply device, where a frequency of the first pulse signal is smaller than a frequency of the second pulse signal, and/or a pulse width of the first pulse signal is larger than a pulse width of the second pulse signal;
the power supply determining module 903 is configured to determine that the electric device currently powered by the power supply device is a cooking device when the second transmitting power meets a preset power condition, where the preset power condition at least includes that the second transmitting power is smaller than the first transmitting power.
In some embodiments, the power supply determining module 903 is specifically configured to:
when the second transmitting power meets the preset power condition, the first pulse signal and the second pulse signal are adjusted;
Repeatedly executing the steps of driving the power supply equipment to work by adopting a first pulse signal, collecting first transmission power of the power supply equipment, driving the power supply equipment to work by adopting a second pulse signal, and collecting second transmission power of the current power supply equipment;
and when the second transmitting power meets a preset power condition and the repetition number reaches a preset frequency threshold, determining that the electric equipment currently powered by the power supply equipment is cooking equipment.
In some embodiments, the power determination module 903 is further configured to:
and when the second transmitting power does not meet the preset power condition, determining that the electric equipment currently powered by the power supply equipment is electronic equipment, wherein the power supply power required by the electronic equipment and the power supply power required by the cooking equipment are different.
In some embodiments, the preset power condition further comprises: the second transmitting power is larger than a preset power threshold, and the preset power threshold is determined according to the exciting power of a wireless transmitting circuit in the power supply equipment.
In some embodiments, the wireless transmitting circuit comprises a transmitting coil, m contact leads of the transmitting coil and m switches connected with the m contact leads, the exciting power is generated by controlling the on-off of the m switches to control the inductance of the transmitting coil connected into the wireless transmitting circuit, and m is a positive integer.
In some embodiments, the apparatus further comprises a detection module 904, wherein: before the power supply equipment is driven to work by adopting the first pulse signal and the current first transmission power of the power supply equipment is collected,
the detection module 904 is configured to detect whether the power supply device establishes communication with an electric device; if not, the power supply device enters a target mode, and notifies the first processing module 901 to execute the step of driving the power supply device to work by using the first pulse signal, and collecting the current first transmission power of the power supply device.
In some embodiments, the power supply device further comprises a wireless transmitting circuit, the apparatus further comprising a processing module 905, the wireless transmitting circuit comprising a transmitting coil provided with at least a first contact lead and a second contact lead, a first switch connected to the first contact lead and a second switch connected to the second contact lead, the processing module 905 further configured to, prior to the power supply device entering a target mode:
acquiring preset transmitting power of the power supply equipment;
when the preset transmitting power is larger than a set value, the first switch is controlled to be opened, and the second switch is controlled to be closed, so that the preset transmitting power is smaller than or equal to the set value.
In some embodiments, the apparatus further comprises a processing module 905, wherein:
the processing module 905 is configured to obtain device information of the electric device when it is detected that the power supply device and the electric device establish communication; and determining the type of the electric equipment according to the equipment information of the electric equipment.
With respect to the above-described apparatus, in which specific functions of the respective modules have been described in detail in the embodiments of the power supply identification method provided in the embodiments of the present specification, detailed description will not be made here.
Based on the same inventive concept, the embodiment of the invention provides an electrical device. As shown in fig. 11, the power supply identification system comprises a memory 104, a processor 102 and a computer program stored in the memory 104 and capable of running on the processor 102, wherein the processor 102 implements the power supply identification method when executing the processor 102.
In some embodiments, the electrical device may be a combination of any one or more of the following: the power supply device, the home appliance device, the air conditioner or other home appliance devices are not limited by the present invention.
Where in FIG. 11, a bus architecture (represented by bus 100), bus 100 may comprise any number of interconnected buses and bridges, with bus 100 linking together various circuits, including one or more processors, represented by processor 102, and memory, represented by memory 104. The bus 100 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be described further herein. Bus interface 105 provides an interface between bus 100 and receiver 101 and transmitter 103. The receiver 101 and the transmitter 103 may be the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 102 is responsible for managing the bus 100 and general processing, while the memory 104 may be used to store data used by the processor 102 in performing operations.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software that is executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated in one processing unit, each unit may exist alone physically, or two or more units may be integrated in one unit.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate components may or may not be physically separate, and components as control devices may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above description is only an example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (13)

1. A power supply identification method, characterized by being applied to power supply equipment, comprising:
driving the power supply equipment to work by adopting a first pulse signal, and collecting the current first transmission power of the power supply equipment;
driving the power supply equipment to work by adopting a second pulse signal, and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, and/or the pulse width of the first pulse signal is larger than that of the second pulse signal;
when the second transmitting power meets the preset power condition, determining that the electric equipment currently powered by the power supply equipment is cooking equipment, wherein the preset power condition at least comprises that the second transmitting power is smaller than the first transmitting power.
2. The method of claim 1, wherein determining that the powered device currently powered by the power supply device is a cooking device when the second transmit power meets a preset power condition comprises:
When the second transmitting power meets the preset power condition, the first pulse signal and the second pulse signal are adjusted;
repeatedly executing the steps of driving the power supply equipment to work by adopting a first pulse signal, collecting first transmission power of the power supply equipment, driving the power supply equipment to work by adopting a second pulse signal, and collecting second transmission power of the current power supply equipment;
and when the second transmitting power meets a preset power condition and the repetition number reaches a preset frequency threshold, determining that the electric equipment currently powered by the power supply equipment is cooking equipment.
3. The method according to claim 2, wherein the method further comprises:
and when the second transmitting power does not meet the preset power condition, determining that the electric equipment currently powered by the power supply equipment is electronic equipment, wherein the power supply power required by the electronic equipment and the power supply power required by the cooking equipment are different.
4. The method of claim 1, wherein the preset power condition further comprises: the second transmitting power is larger than a preset power threshold, and the preset power threshold is determined according to the exciting power of a wireless transmitting circuit in the power supply equipment.
5. The method of claim 4, wherein the wireless transmit circuit comprises a transmit coil, m contact leads of the transmit coil, and m switches connected to the m contact leads, wherein the excitation power is generated by controlling the on-off of the m switches to control the inductance of the transmit coil into the wireless transmit circuit, and m is a positive integer.
6. The method of claim 1, wherein prior to driving the power supply device in operation with the first pulse signal and collecting the current first transmit power of the power supply device, the method further comprises:
detecting whether the power supply equipment establishes communication with electric equipment or not;
if not, the power supply equipment enters a target mode, and the steps of driving the power supply equipment to work by adopting the first pulse signal and collecting the current first transmission power of the power supply equipment are executed.
7. The method of claim 6, wherein the power supply device comprises a wireless transmit circuit comprising a transmit coil having at least a first contact lead and a second contact lead, a first switch connected to the first contact lead, and a second switch connected to the second contact lead, the method further comprising, prior to the power supply device entering a target mode:
Acquiring preset transmitting power of the power supply equipment;
when the preset transmitting power is larger than a set value, the first switch is controlled to be opened, and the second switch is controlled to be closed, so that the preset transmitting power is smaller than or equal to the set value.
8. The method of claim 6, wherein the method further comprises:
when the power supply equipment and the electric equipment are detected to establish communication, acquiring equipment information of the electric equipment;
and determining the type of the electric equipment according to the equipment information of the electric equipment.
9. A power supply identification device, comprising:
the first processing module is used for driving the power supply equipment to work by adopting a first pulse signal and collecting the current first transmission power of the power supply equipment;
the second processing module is used for driving the power supply equipment to work by adopting a second pulse signal and collecting the second transmitting power of the current power supply equipment, wherein the frequency of the first pulse signal is smaller than that of the second pulse signal, and/or the pulse width of the first pulse signal is larger than that of the second pulse signal;
and the power supply determining module is used for determining that the electric equipment currently powered by the power supply equipment is cooking equipment when the second transmitting power meets the preset power condition, wherein the preset power condition at least comprises that the second transmitting power is smaller than the first transmitting power.
10. A power supply device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of the preceding claims 1-8 when executing the computer program.
11. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method according to any of the preceding claims 1-8.
12. An appliance comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of the preceding claims 1-8 when executing the computer program.
13. An air conditioner comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of the preceding claims 1-8 when executing the computer program.
CN202210079903.8A 2022-01-24 2022-01-24 Power supply identification method, device, related equipment and medium Pending CN116526693A (en)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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