Control method for heating a heating cup by a wireless charging transmitter and wireless charging transmitter
By measuring and adjusting the quality factor, resonant frequency and transmission power of the wireless charging transmitter, the problem that the traditional wireless charging heating cup system cannot adapt to different styles is solved, and universal heating of most heating cups is achieved, expanding the scope of adaptability.
Patent Information
- Application Number
- CN201910453393.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-05-28
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2039-05-28
AI Technical Summary
Traditional wireless charging heating cup systems cannot adapt to different styles of heating cups, resulting in poor versatility and a small adaptability range of the wireless charging transmitter.
By measuring the quality factor Q1 of the wireless charging transmitter, adjusting the transmission frequency and obtaining the resonant frequency F1, setting the transmission power P1, and judging whether these characteristic values are within the set threshold range, the properties of the heating cup are determined and the heating mode is entered.
The wireless charging transmitter has achieved universal heating capability for most heating cups, expanding its scope of application.
Smart Images

Figure CN110224504B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wireless charging, and in particular to a control method for heating a heating cup using a wireless charging transmitter and a wireless charging transmitter. Background Art
[0002] In recent years, health care has become a major trend in people's lives, and drinking warm water has become a common habit. However, traditional wireless charging heating cup systems can only heat specific cups and cannot achieve universal application. The reason for this is that traditional heating cups cannot prevent interference from environmental factors. To prevent interference from environmental factors and misheating, the wireless charging heating cup system can only be bound to the same cup type and cannot adapt to heating different types of heating cups. In addition, because traditional heating cups usually use wireless charging receiving systems, the heating cups are usually equipped with wireless receivers, batteries, and heating elements. The heating element is heated by the power provided by the battery to heat the heating cup. In order to achieve this effect, the wireless charging transmitter and the wireless charging receiver are usually set to the same resonant frequency to achieve a good charging effect. As a result, the wireless charging transmitter has a small adaptability range and poor universality. Summary of the Invention
[0003] Based on the above, a control method for a wireless charging transmitter that can be adapted to heat most heating cups is provided, namely, a control method for heating a heating cup by a wireless charging transmitter.
[0004] In addition, a wireless charging transmitter is provided that can be adapted to heat most heating cups.
[0005] A method for controlling a wireless charging transmitter to heat a heating cup, the method comprising: obtaining a quality factor value Q1 of the wireless charging transmitter, and determining whether the quality factor value Q1 is within a set quality factor threshold range; if so, controlling the wireless charging transmitter to enter a heating mode for the heating cup; or adjusting the transmission frequency of the wireless charging transmitter and obtaining a resonant frequency F1, and determining whether the resonant frequency F1 is within a set resonant frequency threshold range; if so, controlling the wireless charging transmitter to enter a heating mode for the heating cup; or setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, obtaining the transmission power P1 of the wireless charging transmitter, and determining whether the transmission power P1 is within a set transmission power threshold range; if so, controlling the wireless charging transmitter to enter a heating mode for the heating cup.
[0006] In one embodiment, it is determined whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver. If so, entering the heating mode for the heating cup is prohibited.
[0007] In one embodiment, if it is determined that the quality factor value Q1 is not within a set quality factor threshold range, it is determined whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver. If so, the wireless charging transmitter enters a charging mode.
[0008] In one embodiment, a control method for a wireless charging transmitter to heat a heating cup includes: obtaining a quality factor value Q1 of the wireless charging transmitter; determining whether the quality factor value Q1 is within a set quality factor threshold range, and if so, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver, and if not, adjusting the transmission frequency of the wireless charging transmitter to obtain a resonant frequency F1; determining whether the resonant frequency F1 is within a set resonant frequency threshold range, and if so, setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter; determining whether the transmission power P1 is within a set transmission power threshold range, and if so, entering a heating mode for the heating cup.
[0009] In one embodiment, a control method for a wireless charging transmitter to heat a heating cup includes: obtaining a quality factor value Q1 of the wireless charging transmitter; determining whether the quality factor value Q1 is within a set quality factor threshold range, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain a resonant frequency F1; determining whether the resonant frequency F1 is within a set resonant frequency threshold range, and if so, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver, and if not, setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter; determining whether the transmission power P1 is within a set transmission power threshold range, and if so, entering a heating mode for the heating cup.
[0010] In one embodiment, the wireless charging transmitter includes a pressure switch, and the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0011] In one embodiment, before adjusting the transmission frequency of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain the resonant frequency F1.
[0012] In one embodiment, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0013] In one embodiment, the method for obtaining the quality factor value Q1 includes: setting the transmission frequency of the wireless charging transmitter to a second transmission frequency, setting the duty cycle of the transmission frequency of the wireless charging transmitter to a first duty cycle, and obtaining the characteristic impedance and loop impedance of the wireless charging transmitter in this state; and recording the ratio of the characteristic impedance to the loop impedance as the quality factor value Q1.
[0014] In one embodiment, the second transmission frequency has a frequency value between 1 Hz and 5 Hz.
[0015] In one embodiment, the second transmission frequency has a frequency value between 2 Hz and 4 Hz.
[0016] In one embodiment, the second transmission frequency has a frequency value between 2.5 Hz and 3.5 Hz.
[0017] In one embodiment, the frequency value of the second transmitting frequency is 1 Hz.
[0018] In one embodiment, the first duty cycle is greater than 30%.
[0019] In one embodiment, the first duty cycle is 50%.
[0020] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping.
[0021] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping, and the frequency range of the frequency sweeping is between 80KHz and 250KHz.
[0022] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping, and the frequency range of the frequency sweeping is between 100 KHz and 180 KHz.
[0023] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping, and the frequency range of the frequency sweeping is between 200 KHz and 500 KHz.
[0024] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping, and the frequency range of the frequency sweeping is between 100 KHz and 200 KHz.
[0025] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency hopping, and during the process of adjusting the transmission frequency of the wireless charging transmitter, any two frequency values are not equal. This embodiment can save time in adjusting the frequency to obtain the resonant frequency F1.
[0026] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1.
[0027] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1 and less than 250 KHz.
[0028] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1 and less than 180 KHz.
[0029] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1 and less than 500 KHz.
[0030] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1 and less than 200 KHz.
[0031] In one embodiment, the method further includes a method for setting the quality factor threshold range, comprising: setting the wireless charging transmitter under the same conditions, setting the transmission frequency of the wireless charging transmitter to a third transmission frequency, setting the duty cycle of the transmission frequency of the wireless charging transmitter to a second duty cycle, and obtaining the characteristic impedance and loop impedance of the wireless charging transmitter in this state; recording the ratio of the characteristic impedance to the loop impedance as a quality factor value Q2; setting the range from the quality factor value Q2-N1 to the quality factor value Q2+N2 as the quality factor threshold range; wherein both N1 and N2 are positive numbers.
[0032] In one embodiment, the third transmission frequency has a frequency value between 1 Hz and 5 Hz.
[0033] In one embodiment, the third transmission frequency has a frequency value between 2 Hz and 4 Hz.
[0034] In one embodiment, the third transmission frequency has a frequency value between 2.5 Hz and 3.5 Hz.
[0035] In one embodiment, the frequency value of the third transmission frequency is 1 Hz.
[0036] In one embodiment, the second duty cycle is greater than 30%.
[0037] In one embodiment, the second duty cycle is 50%.
[0038] In one embodiment, the N1 is equal to the N2.
[0039] In one embodiment, N1 is smaller than N2.
[0040] In one embodiment, N1 is greater than N2.
[0041] In one embodiment, the N1 is 0.05; the N2 is 0.05.
[0042] In one embodiment, the method further includes a method for setting the resonant frequency threshold range, comprising: setting the wireless charging transmitter under the same conditions, adjusting the transmission frequency of the wireless charging transmitter and obtaining the resonant frequency F2; setting the range from the resonant frequency F2-N3 to the resonant frequency F2+N4 as the resonant frequency threshold range; wherein N3 and N4 are both positive numbers.
[0043] In one embodiment, N3 is equal to N4.
[0044] In one embodiment, N3 is smaller than N4.
[0045] In one embodiment, N3 is greater than N4.
[0046] In one embodiment, the N3 is 0.05; the N4 is 0.05.
[0047] In one embodiment, the method further includes a method for setting the transmission power threshold range, comprising: setting the wireless charging transmitter under the same conditions, setting the transmission frequency of the wireless charging transmitter to a fourth transmission frequency, and obtaining the transmission power P2 of the wireless charging transmitter; setting the range of the transmission power P2-N5 to the transmission power P2+N6 as the transmission power threshold range; and both N5 and N6 are positive numbers.
[0048] In one embodiment, the fourth transmitting frequency is greater than the resonant frequency F2.
[0049] In one embodiment, the fourth transmitting frequency is lower than the resonant frequency F2.
[0050] In one embodiment, the N5 is equal to the N6.
[0051] In one embodiment, the N5 is smaller than the N6.
[0052] In one embodiment, the N5 is greater than the N6.
[0053] In one embodiment, the N5 is 0.05; the N6 is 0.05.
[0054] In one embodiment, the wireless charging transmitter is a mobile phone wireless charging transmitter.
[0055] In one embodiment, the method further includes controlling the frequency range of the transmission frequency of the wireless charging transmitter to be within the inductive zone (safe zone)
[0056] In one embodiment, the operating frequency band of the wireless charging transmitter includes a first operating frequency band and a second operating frequency band; the first operating frequency band is used for wireless charging; and the second operating frequency band is used for wireless heating of the heating cup. The method further includes controlling the wireless charging transmitter to transmit at the second operating frequency band when entering a heating mode to heat the heating cup.
[0057] The above-mentioned control method for heating a heating cup using a wireless charging transmitter measures any one of three characteristic values after the heating cup is placed on the wireless charging transmitter: the quality factor value Q1 of the wireless charging transmitter, or adjusts the transmission frequency of the wireless charging transmitter and obtains the resonant frequency F1, or sets the transmission frequency of the wireless charging transmitter to a first transmission frequency and obtains the transmission power P1 of the wireless charging transmitter. The method then determines whether the quality factor value Q1, the resonant frequency F1, or the transmission power P1 is within a set threshold range to uniquely determine the nature of the heating cup, and then enters the heating mode to heat the heating cup. This method not only enables the wireless charging transmitter to heat the heating cup, but also greatly expands the versatility of wireless charging transmitters for heating cups.
[0058] This application also provides another control method for heating a heating cup using a wireless charging transmitter.
[0059] A method for controlling a wireless charging transmitter to heat a heating cup, the method comprising: obtaining a quality factor value Q1 of the wireless charging transmitter; determining whether the quality factor value Q1 is within a set quality factor threshold range, and if so, adjusting the transmission frequency of the wireless charging transmitter and obtaining a resonant frequency F1; determining whether the resonant frequency F1 is within a set resonant frequency threshold range, and if so, setting the transmission frequency of the wireless charging transmitter to a first transmission frequency and obtaining a transmission power P1 of the wireless charging transmitter; determining whether the transmission power P1 is within a set transmission power threshold range, and if so, entering a heating mode for the heating cup.
[0060] In one embodiment, the first transmitting frequency is greater than the resonant frequency F1.
[0061] In one embodiment, the first transmitting frequency is lower than the resonant frequency F1.
[0062] The above-mentioned control method for heating a heating cup using a wireless charging transmitter measures the quality factor Q1 of the wireless charging transmitter after the heating cup is placed on the wireless charging transmitter, adjusts the transmission frequency of the wireless charging transmitter and obtains the resonant frequency F1, sets the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtains the transmission power P1 of the wireless charging transmitter. The method then determines whether the quality factor Q1, the resonant frequency F1, and the transmission power P1 are within a set threshold range to uniquely determine the nature of the heating cup, thereby entering the heating mode to heat the heating cup. This method not only enables the wireless charging transmitter to heat the heating cup, but also greatly expands the versatility of wireless charging transmitters for heating cups.
[0063] This application also provides another control method for heating a heating cup using a wireless charging transmitter.
[0064] A method for controlling a wireless charging transmitter to heat a heating cup comprises: obtaining a quality factor value Q1 of the wireless charging transmitter; and determining whether the quality factor value Q1 is within a set quality factor threshold range. If so, entering a heating mode for the heating cup.
[0065] In one embodiment, the method further includes: before or after obtaining the quality factor value Q1 of the wireless charging transmitter, determining whether the wireless charging transmitter has received a charging request signal sent by a wireless charging receiver; if so, prohibiting entering a heating mode for the heating cup.
[0066] In one embodiment, the method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting the heating cup from entering a heating mode.
[0067] In one embodiment, the method further includes: after determining that the quality factor value Q1 of the wireless charging transmitter is within a set quality factor threshold range, adjusting the transmission frequency of the wireless charging transmitter and obtaining the resonant frequency F1; judging whether the resonant frequency F1 is within the set resonant frequency threshold range, and if so, entering the heating mode for the heating cup.
[0068] In one embodiment, the method further includes: after determining that the quality factor value Q1 of the wireless charging transmitter is within a set quality factor threshold range, setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter; judging whether the transmission power P1 is within the set transmission power threshold range, and if so, entering a heating mode for the heating cup.
[0069] In one embodiment, the first transmitting frequency is greater than the resonant frequency F1.
[0070] In one embodiment, the first transmitting frequency is lower than the resonant frequency F1.
[0071] In one embodiment, the wireless charging transmitter includes a pressure switch, and the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0072] In one embodiment, before or after adjusting the transmission frequency of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain the resonant frequency F1.
[0073] In one embodiment, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0074] The aforementioned method for controlling a wireless charging transmitter heating a heated cup measures the wireless charging transmitter's quality factor (Q1) after the cup is placed on the transmitter and determines whether Q1 is within a set threshold. This uniquely determines the cup's properties and then activates heating mode to heat the cup. This method not only enables the wireless charging transmitter to heat the cup but also significantly expands the versatility of wireless charging transmitters for heating cups.
[0075] This application also provides another control method for heating a heating cup using a wireless charging transmitter.
[0076] A method for controlling a wireless charging transmitter to heat a heating cup, the method comprising: adjusting the transmission frequency of the wireless charging transmitter and obtaining a resonant frequency F1; determining whether the resonant frequency F1 is within a set resonant frequency threshold range; and if so, entering a heating mode for the heating cup.
[0077] In one embodiment, after determining that the resonant frequency F1 of the wireless charging transmitter is within a set resonant frequency threshold range, the transmission frequency of the wireless charging transmitter is set to a first transmission frequency, and the transmission power P1 of the wireless charging transmitter is obtained; it is determined whether the transmission power P1 is within the set transmission power threshold range. If so, the heating mode for the heating cup is entered.
[0078] In one embodiment, the method further includes: before or after adjusting the transmission frequency of the wireless charging transmitter, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver; if so, prohibiting entering a heating mode for the heating cup.
[0079] In one embodiment, the method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting the heating cup from entering a heating mode.
[0080] In one embodiment, the wireless charging transmitter includes a pressure switch, and the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0081] In one embodiment, before adjusting the transmission frequency of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain the resonant frequency F1.
[0082] In one embodiment, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0083] The aforementioned method for controlling a wireless charging transmitter to heat a heated cup measures the transmitter's resonant frequency F1 after the cup is placed on the transmitter and determines whether F1 is within a set threshold. This uniquely determines the nature of the heated cup and then activates heating mode to heat the cup. This method not only enables the wireless charging transmitter to heat the cup but also significantly expands the versatility of wireless charging transmitters for heating cups.
[0084] This application also provides another control method for heating a heating cup using a wireless charging transmitter.
[0085] A method for controlling a heating cup using a wireless charging transmitter, the method comprising: setting the transmission frequency of the wireless charging transmitter to a first transmission frequency and obtaining the transmission power P1 of the wireless charging transmitter; and determining whether the transmission power P1 is within a set transmission power threshold range. If so, entering a heating mode for the heating cup.
[0086] In one embodiment, the method further includes: before or after setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver; if so, prohibiting entering the heating mode for the heating cup.
[0087] In one embodiment, the method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting the heating cup from entering a heating mode.
[0088] In one embodiment, the wireless charging transmitter includes a pressure switch, and the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0089] In one embodiment, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0090] The aforementioned method for controlling a wireless charging transmitter heating a heating cup involves measuring the heating cup's position on the wireless charging transmitter, setting the transmitter's transmission frequency to a first transmission frequency, and obtaining the transmitter's transmission power P1. By determining whether the transmission power P1 falls within a set transmission power threshold, the wireless charging transmitter is determined to have entered heating mode for the heating cup. This method significantly expands the versatility of wireless charging transmitters for heating cups.
[0091] Based on the above content, the present application also provides a wireless charging transmitter.
[0092] A wireless charging transmitter comprises a transmitting module, a driving module and a control module; the transmitting module is connected to the driving module; the driving module is connected to the control module; the transmitting module is used to convert electrical energy into electromagnetic waves and radiate them out according to the driving signal of the driving module; the control module is used to comprehensively process the information data of each functional module and control each functional module, and is characterized in that it also includes a frequency modulation module, a quality factor detection circuit and a storage module; the frequency modulation module is connected to the control module and the driving module respectively; the quality factor detection circuit is connected to the transmitting module; the storage module is connected to the control module; the frequency modulation module is used to adjust the frequency of the electromagnetic waves emitted by the transmitting module; the quality factor detection circuit is used to measure and output data information related to the calculation of the quality factor value Q of the transmitting module; the storage module stores a computer program that can be read and executed by the control module, and when the control module executes the program, it implements the method described in any one of the above embodiments.
[0093] In one embodiment, it further includes a first switch and a second switch; the first state of the first switch is used to control the wireless charging transmitter to perform relevant detection and control of whether to enter the heating mode to heat the heating cup; the second state of the first switch is used to control the wireless charging transmitter to execute the learning mode, learn and bind the relevant detection and control of a specific heating cup; the second switch is used to detect the weight of the item placed on the wireless charging transmitter, or to detect whether the weight of the item placed on the wireless charging transmitter exceeds the set value.
[0094] In one embodiment, the first switch is a dip switch;
[0095] In one embodiment, the second switch is a pressure switch;
[0096] In one embodiment, the wireless charging transmitter further includes a signal transceiver module; the signal transceiver module is connected to the control module; and the signal transceiver module is used to transmit charging information with the wireless charging receiver.
[0097] In one embodiment, the wireless charging transmitter is a mobile phone wireless charging transmitter.
[0098] The wireless heater provided above, by setting a transmitting module, a driving module, a control module, a frequency modulation module, a quality factor detection circuit and a storage module, enables the wireless heater to have a frequency modulation detection function, a quality factor detection function, and a function of storing later added operating data. The wireless heater also has the function of learning, binding and confirming specific items, thereby enabling the wireless heater to be suitable for wireless charging or wireless heating of more items and more categories of items, thereby increasing the versatility and scope of use of the wireless heater.
[0099] In addition, the present application also provides a computer storage medium.
[0100] A computer storage medium stores a computer program that, when executed by a processor, implements the method described in any of the above embodiments. This computer storage medium stores both a wireless charging program and a wireless heating program, facilitating program upgrades and modifications for wireless chargers.
[0101] In the foregoing, at least in some embodiments, the present invention aims to overcome or improve at least one disadvantage of the prior art, or to provide a useful alternative. A collection of summarized embodiments is provided to foreshadow potential patent claims based on a selection of technical features disclosed in the following "Detailed Description of the Invention," and these collections of summarized embodiments are not intended to limit the scope of the claims that may be expanded in any way. BRIEF DESCRIPTION OF THE DRAWINGS
[0102] Figure 1 A schematic diagram of the control flow of a wireless charging transmitter heating a heating cup provided in one embodiment;
[0103] Figure 2 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0104] Figure 3 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0105] Figure 4 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0106] Figure 5 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0107] Figure 6A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0108] Figure 7 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0109] Figure 8 A schematic diagram of a control flow for obtaining a quality factor of a wireless charging transmitter according to an embodiment;
[0110] Figure 9 A schematic diagram of a control flow for obtaining the transmission power of a wireless charging transmitter provided in one embodiment;
[0111] Figure 10 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0112] Figure 11 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0113] Figure 12 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0114] Figure 13 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0115] Figure 14 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0116] Figure 15 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0117] Figure 16 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0118] Figure 17 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0119] Figure 18 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0120] Figure 19 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0121] Figure 20 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0122] Figure 21 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0123] Figure 22 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0124] Figure 23 A schematic diagram of the control flow of heating a heating cup using a wireless charging transmitter according to an embodiment;
[0125] Figure 24 A schematic diagram of a control flow of a self-learning and binding process of a wireless charging transmitter to a heating cup provided in one embodiment;
[0126] Figure 25 A schematic diagram of a control flow of a wireless charging transmitter identifying a heating cup according to an embodiment;
[0127] Figure 26 A schematic diagram of the structure of a wireless charging transmitter system provided by an embodiment;
[0128] Explanation of reference numerals: 10. Transmitting module; 20. Driving module; 30. Control module; 40. Frequency modulation module; 50. Storage module; 60. First switch; 70. Second switch; 80. Signal transceiver module. DETAILED DESCRIPTION
[0129] In this patent document, the following discussion Figure 1-26 The various embodiments used to describe the principles or methods of the present disclosure are for illustration only and should not be interpreted in any way as limiting the scope of the present disclosure. It should be understood by those skilled in the art that the principles or methods of the present disclosure can be implemented in any appropriately arranged wireless charger. With reference to the accompanying drawings, preferred embodiments of the present disclosure will be described below. In the following description, detailed descriptions of well-known functions or configurations will be omitted so as not to obscure the subject matter of the present disclosure with unnecessary details. Moreover, the terms used herein will be defined according to the functions of this application. Therefore, the terms may differ depending on the intention or usage of the user or operator. Therefore, the terms used herein must be understood based on the description made herein.
[0130] A control method for heating a heating cup by a wireless charging transmitter, such as Figure 1As shown, the method includes: obtaining a quality factor value Q1 of the wireless charging transmitter; judging whether the quality factor value Q1 is within a set quality factor threshold range, and if so, adjusting the transmission frequency of the wireless charging transmitter and obtaining the resonant frequency F1; judging whether the resonant frequency F1 is within a set resonant frequency threshold range, and if so, setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter; judging whether the transmission power P1 is within a set transmission power threshold range, and if so, entering the heating mode for the heating cup.
[0131] More specifically, Figure 1 As shown, the method specifically includes the following steps S110-S180:
[0132] S110: Obtaining the quality factor Q1 of the wireless charging transmitter. In this step, the quality factor represents the ratio of a device's stored energy to the energy lost in the entire circuit during the same cycle. It refers to a physical quantity in electricity or magnetism that serves as a quality indicator. In a wireless charging resonant circuit, the quality factor can be expressed as the ratio of the characteristic impedance to the loop impedance. In the present invention, the material and size of the thermally conductive metal in different heating cups, as well as the distance between the thermally conductive metal and the wireless charging transmitter (usually the distance from the transmitting coil within the wireless charging transmitter), can result in different quality factors for the wireless charging transmitter. For example, for heating cups containing a thermally conductive metal sheet of the same material and size, the farther the heating cup is from the coil within the wireless charging transmitter, the greater the quality factor and the lower the transmission power. Therefore, the characteristics of the thermally conductive metal in the heating cup and the characteristic that the distance from the coil within the wireless charging transmitter causes the quality factor to vary can be used as a characteristic quantity of a specific cup relative to the wireless charging transmitter.
[0133] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, proceed to step S130; otherwise, proceed to step S180. In this step, placing the same heating cup on the wireless charging transmitter theoretically results in the same quality factor. However, in practice, the quality factor can vary due to environmental factors (e.g., different placements of the heating cup, dust on the bottom of the cup resulting in different distances between the bottom of the cup and the transmitting coil, metal dust in the air, etc.). Therefore, using a quality factor threshold range determination method is beneficial for practical applications.
[0134] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1. Due to the material and size of the heat-conducting metal in different heating cups, the resonant frequency of the wireless charging transmitter may vary. Therefore, the resonant frequency can be used as a characteristic quantity of a specific cup relative to the wireless charging transmitter.
[0135] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180. In this step, the determination method based on the resonant frequency threshold range is beneficial for practical applications.
[0136] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency and obtaining the transmission power P1 of the wireless charging transmitter. Because the heat-conducting metal in different heating cups has different materials and sizes, and thus absorbs different amounts of energy per unit time, the transmission power of the wireless charging transmitter varies. Therefore, the transmission power of the wireless charging transmitter can be used as a characteristic quantity of a specific cup relative to the wireless charging transmitter.
[0137] S160: Determine whether the transmit power P1 is within a set transmit power threshold range. If so, execute step S170; otherwise, execute step S180. The determination method based on the transmit power threshold range is beneficial for practical applications.
[0138] S170: Enter the heating mode for the heating cup.
[0139] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0140] In one embodiment, the first transmitting frequency is greater than the resonant frequency F1. This configuration can avoid the resonant frequency and ensure system security and data accuracy.
[0141] In one embodiment, the first transmitting frequency is lower than the resonant frequency F1. This configuration can avoid the resonant frequency and ensure the security of the system and the accuracy of the data.
[0142] In one embodiment, Figure 2 As shown, the control method for heating a heating cup by a wireless charging transmitter further includes: determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver, and if so, prohibiting the heating mode for the heating cup and outputting a prompt message indicating that the heating mode is not to be entered. More specifically, as Figure 2 As shown, the method specifically includes the following steps:
[0143] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S110.
[0144] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0145] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S130; otherwise, execute step S180.
[0146] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0147] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180.
[0148] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0149] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0150] S170: Enter the heating mode for the heating cup.
[0151] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0152] In one embodiment, Figure 3 As shown, if it is determined that the quality factor value Q1 is not within the set quality factor threshold range, it is determined whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, the wireless charging transmitter enters the charging mode.
[0153] In one embodiment, Figure 3 As shown, the control method of heating a heating cup by a wireless charging transmitter includes the following steps:
[0154] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0155] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S190; otherwise, execute step S180.
[0156] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S130.
[0157] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0158] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180.
[0159] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0160] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0161] S170: Enter the heating mode for the heating cup.
[0162] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0163] In one embodiment, a control method for a wireless charging transmitter to heat a heating cup includes: obtaining a quality factor value Q1 of the wireless charging transmitter; determining whether the quality factor value Q1 is within a set quality factor threshold range, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain a resonant frequency F1; determining whether the resonant frequency F1 is within a set resonant frequency threshold range, and if so, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver, and if not, setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter; determining whether the transmission power P1 is within a set transmission power threshold range, and if so, entering a heating mode for the heating cup.
[0164] In one embodiment, the wireless charging transmitter includes a pressure switch, such as Figure 4 As shown, the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0165] In one embodiment, before adjusting the transmission frequency of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain the resonant frequency F1.
[0166] Specifically, such as Figure 4 As shown, the control method of heating a heating cup by a wireless charging transmitter includes the following steps:
[0167] S191: Detect whether the pressure switch is turned on. If so, execute step S110; otherwise, execute step S180.
[0168] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0169] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S130; otherwise, execute step S180.
[0170] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0171] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180.
[0172] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0173] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0174] S170: Enter the heating mode for the heating cup.
[0175] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0176] In one embodiment, Figure 5 As shown, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0177] Specifically, such as Figure 5 As shown, the control method of heating a heating cup by a wireless charging transmitter includes the following steps:
[0178] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0179] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S130; otherwise, execute step S180.
[0180] S191: Detect whether the pressure switch is turned on. If so, execute step S130; otherwise, execute step S180.
[0181] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0182] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180.
[0183] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0184] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0185] S170: Enter the heating mode for the heating cup.
[0186] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0187] In one embodiment, the method includes determining a pressure switch and whether a wireless charging request is received.
[0188] like Figure 6 As shown, specific embodiments are as follows:
[0189] S191: Detect whether the pressure switch is turned on. If so, execute step S190; otherwise, execute step S180.
[0190] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S110.
[0191] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0192] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S130; otherwise, execute step S180.
[0193] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0194] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180.
[0195] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0196] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0197] S170: Enter the heating mode for the heating cup.
[0198] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0199] like Figure 7 As shown, specific embodiments are as follows:
[0200] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0201] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S130; otherwise, execute step S180.
[0202] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S191.
[0203] S191: Detect whether the pressure switch is turned on. If so, execute step S130; otherwise, execute step S180.
[0204] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0205] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180.
[0206] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0207] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0208] S170: Enter the heating mode for the heating cup.
[0209] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0210] In one embodiment, the method for obtaining the quality factor value Q1 includes: Figure 8 As shown,
[0211] S210: Setting the transmission frequency of the wireless charging transmitter to the second transmission frequency, and setting the duty cycle of the transmission frequency of the wireless charging transmitter to the first duty cycle.
[0212] S220: Obtain the characteristic impedance and loop impedance of the wireless charging transmitter in the state of S210.
[0213] S230: Record the ratio of the characteristic impedance to the loop impedance as the quality factor value Q1.
[0214] In one embodiment, the second transmission frequency has a frequency value between 1 Hz and 5 Hz.
[0215] In one embodiment, the second transmission frequency has a frequency value between 2 Hz and 4 Hz.
[0216] In one embodiment, the second transmission frequency has a frequency value between 2.5 Hz and 3.5 Hz.
[0217] In one embodiment, the frequency value of the second transmitting frequency is 1 Hz.
[0218] In one embodiment, the first duty cycle is greater than 30%.
[0219] In one embodiment, the first duty cycle is 50%.
[0220] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping.
[0221] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping, and the frequency range of the frequency sweeping is between 80KHz and 250KHz.
[0222] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping, and the frequency range of the frequency sweeping is between 100 KHz and 180 KHz.
[0223] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping, and the frequency range of the frequency sweeping is between 200 KHz and 500 KHz.
[0224] In one embodiment, the transmission frequency of the wireless charging transmitter is adjusted by frequency hopping, and during the process of adjusting the transmission frequency of the wireless charging transmitter, any two frequency values are not equal. This embodiment can save time in adjusting the frequency to obtain the resonant frequency F1.
[0225] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1.
[0226] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1 and less than 250 KHz.
[0227] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1 and less than 180 KHz.
[0228] In one embodiment, in the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is greater than the resonant frequency F1 and less than 500 KHz.
[0229] In one embodiment, Figure 9 As shown, the method further includes a method for setting the quality factor threshold range, including steps S310-S340:
[0230] S310: The wireless charging transmitter is set under the same conditions, the transmission frequency of the wireless charging transmitter is set to a third transmission frequency, and the duty cycle of the wireless charging transmitter transmission frequency is set to a second duty cycle.
[0231] S320: Obtain the characteristic impedance and loop impedance of the wireless charging transmitter in the state of S310.
[0232] S330: Recording the ratio of the characteristic impedance to the loop impedance as a quality factor value Q2;
[0233] S340: Setting the quality factor value range from Q2-N1 to Q2+N2 as the quality factor threshold range; both N1 and N2 are positive numbers.
[0234] In one embodiment, the third transmission frequency has a frequency value between 1 Hz and 5 Hz.
[0235] In one embodiment, the third transmission frequency has a frequency value between 2 Hz and 4 Hz.
[0236] In one embodiment, the third transmission frequency has a frequency value between 2.5 Hz and 3.5 Hz.
[0237] In one embodiment, the frequency value of the third transmission frequency is 1 Hz.
[0238] In one embodiment, the second duty cycle is greater than 30%.
[0239] In one embodiment, the second duty cycle is 50%.
[0240] In one embodiment, the N1 is equal to the N2.
[0241] In one embodiment, N1 is smaller than N2.
[0242] In one embodiment, N1 is greater than N2.
[0243] In one embodiment, the N1 is 0.05; the N2 is 0.05.
[0244] In one embodiment, the method further includes a method for setting the resonant frequency threshold range, comprising: setting the wireless charging transmitter under the same conditions, adjusting the transmission frequency of the wireless charging transmitter and obtaining the resonant frequency F2; setting the range from the resonant frequency F2-N3 to the resonant frequency F2+N4 as the resonant frequency threshold range; wherein N3 and N4 are both positive numbers.
[0245] In one embodiment, N3 is equal to N4.
[0246] In one embodiment, N3 is smaller than N4.
[0247] In one embodiment, N3 is greater than N4.
[0248] In one embodiment, the N3 is 0.05; the N4 is 0.05.
[0249] In one embodiment, the method further includes a method for setting the transmission power threshold range, comprising: setting the wireless charging transmitter under the same conditions, setting the transmission frequency of the wireless charging transmitter to a fourth transmission frequency, and obtaining the transmission power P2 of the wireless charging transmitter; setting the range of the transmission power P2-N5 to the transmission power P2+N6 as the transmission power threshold range; and both N5 and N6 are positive numbers.
[0250] In one embodiment, the fourth transmitting frequency is greater than the resonant frequency F2.
[0251] In one embodiment, the fourth transmitting frequency is lower than the resonant frequency F2.
[0252] In one embodiment, the N5 is equal to the N6.
[0253] In one embodiment, the N5 is smaller than the N6.
[0254] In one embodiment, the N5 is greater than the N6.
[0255] In one embodiment, the N5 is 0.05; the N6 is 0.05.
[0256] In one embodiment, the wireless charging transmitter is a mobile phone wireless charging transmitter.
[0257] In one embodiment, the method further includes controlling the frequency range of the transmission frequency of the wireless charging transmitter to be within the inductive zone (safe zone)
[0258] In one embodiment, the operating frequency band of the wireless charging transmitter includes a first operating frequency band and a second operating frequency band; the first operating frequency band is used for wireless charging; and the second operating frequency band is used for wireless heating of the heating cup. The method further includes controlling the wireless charging transmitter to transmit at the second operating frequency band when entering a heating mode to heat the heating cup.
[0259] The aforementioned control method for heating a heating cup using a wireless charging transmitter measures the quality factor Q1 of the wireless charging transmitter after the heating cup is placed on the wireless charging transmitter, adjusts the transmission frequency of the wireless charging transmitter and obtains the resonant frequency F1, and sets the transmission frequency of the wireless charging transmitter to a first transmission frequency and obtains the transmission power P1 of the wireless charging transmitter. The method then determines whether the quality factor Q1, the resonant frequency F1, and the transmission power P1 are within a set threshold range to uniquely determine the nature of the heating cup and enter a heating mode to heat the heating cup. This method not only enables the wireless charging transmitter to heat the heating cup, but also greatly expands the versatility of wireless charging transmitters for heating cups.
[0260] This application also provides another control method for heating a heating cup using a wireless charging transmitter.
[0261] A control method for heating a heating cup by a wireless charging transmitter, such as Figure 11 As shown, the method includes: obtaining a quality factor value Q1 of the wireless charging transmitter; judging whether the quality factor value Q1 is within a set quality factor threshold range, and if so, entering a heating mode for the heating cup.
[0262] In one embodiment, Figure 10 As shown, the wireless charging transmitter includes a pressure switch, and the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0263] In one embodiment, Figure 10 As shown, before adjusting the transmission frequency of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain the resonant frequency F1.
[0264] In one embodiment, after adjusting the transmission frequency of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain the resonant frequency F1.
[0265] A specific implementation example Figure 10 As shown:
[0266] S191: Detect whether the pressure switch is turned on. If so, execute step S110; otherwise, execute step S180.
[0267] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0268] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S170; otherwise, execute step S180.
[0269] S170: Enter the heating mode for the heating cup.
[0270] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0271] In one embodiment, Figure 11 As shown, the method further includes: before obtaining the quality factor value Q1 of the wireless charging transmitter, determining whether the wireless charging transmitter has received a charging request signal sent by a wireless charging receiver, and if so, prohibiting entering the heating mode for the heating cup.
[0272] In one embodiment, Figure 11 As shown, the method further includes: after obtaining the quality factor value Q1 of the wireless charging transmitter, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver, and if so, prohibiting entering the heating mode for the heating cup.
[0273] In one embodiment, Figure 11 As shown, the method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting the heating cup from entering a heating mode.
[0274] A specific implementation example Figure 11 As shown:
[0275] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S110.
[0276] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0277] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S170; otherwise, execute step S180.
[0278] S170: Enter the heating mode for the heating cup.
[0279] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0280] A specific implementation example Figure 12 As shown:
[0281] S191: Detect whether the pressure switch is turned on. If so, execute step S190; otherwise, execute step S180.
[0282] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S110.
[0283] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0284] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S170; otherwise, execute step S180.
[0285] S170: Enter the heating mode for the heating cup.
[0286] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0287] A specific implementation example Figure 13 As shown:
[0288] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S191.
[0289] S191: Detect whether the pressure switch is turned on. If so, execute step S110; otherwise, execute step S180.
[0290] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0291] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S170; otherwise, execute step S180.
[0292] S170: Enter the heating mode for the heating cup.
[0293] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0294] A specific implementation example Figure 14 As shown:
[0295] S192: Detect whether the pressure switch is on, if so, execute step S110, otherwise execute step S180. Alternatively, determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, if so, execute step S180, otherwise execute step S110.
[0296] S110: Obtain a quality factor value Q1 of the wireless charging transmitter.
[0297] S120: Determine whether the quality factor value Q1 is within a set quality factor threshold range. If so, execute step S130; otherwise, execute step S180.
[0298] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0299] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S170; otherwise, execute step S180.
[0300] S170: Enter the heating mode for the heating cup.
[0301] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0302] In one embodiment, the method further includes: after determining that the quality factor value Q1 of the wireless charging transmitter is within a set quality factor threshold range, adjusting the transmission frequency of the wireless charging transmitter and obtaining the resonant frequency F1; judging whether the resonant frequency F1 is within the set resonant frequency threshold range, and if so, entering the heating mode for the heating cup.
[0303] In one embodiment, Figure 15 As shown, the method includes:
[0304] S191: Detect whether the pressure switch is turned on. If so, execute step S130; otherwise, execute step S180.
[0305] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0306] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S170; otherwise, execute step S180.
[0307] S170: Enter the heating mode for the heating cup.
[0308] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0309] In one embodiment, Figure 16 As shown, the method includes:
[0310] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S130.
[0311] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0312] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S170; otherwise, execute step S180.
[0313] S170: Enter the heating mode for the heating cup.
[0314] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0315] In one embodiment, Figure 17 As shown, the method includes:
[0316] S191: Detect whether the pressure switch is turned on. If so, execute step S190; otherwise, execute step S180.
[0317] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S130.
[0318] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0319] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S170; otherwise, execute step S180.
[0320] S170: Enter the heating mode for the heating cup.
[0321] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0322] In one embodiment, Figure 18 As shown, the method includes:
[0323] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S191.
[0324] S191: Detect whether the pressure switch is turned on. If so, execute step S130; otherwise, execute step S180.
[0325] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0326] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S170; otherwise, execute step S180.
[0327] S170: Enter the heating mode for the heating cup.
[0328] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0329] In one embodiment, Figure 19 As shown, the method includes:
[0330] S192: Detect whether the pressure switch is on, if so, execute step S130, otherwise execute step S180. Alternatively, determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, if so, execute step S180, otherwise execute step S130.
[0331] S130: Adjust the transmission frequency of the wireless charging transmitter and obtain the resonant frequency F1.
[0332] S140: Determine whether the resonant frequency F1 is within a set resonant frequency threshold range. If so, execute step S150; otherwise, execute step S180.
[0333] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0334] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0335] S170: Enter the heating mode for the heating cup.
[0336] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0337] In one embodiment, Figure 20 As shown, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0338] A specific implementation example Figure 20 As shown:
[0339] S191: Detect whether the pressure switch is turned on. If so, execute step S150; otherwise, execute step S180.
[0340] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0341] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0342] S170: Enter the heating mode for the heating cup.
[0343] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0344] In one embodiment, Figure 21 As shown, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if not, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0345] A specific implementation example Figure 21 As shown:
[0346] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S150.
[0347] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0348] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0349] S170: Enter the heating mode for the heating cup.
[0350] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0351] A specific embodiment is also as follows Figure 22 As shown:
[0352] S191: Detect whether the pressure switch is turned on. If so, execute step S190; otherwise, execute step S180.
[0353] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S150.
[0354] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0355] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0356] S170: Enter the heating mode for the heating cup.
[0357] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0358] A specific embodiment is also as follows Figure 23 As shown:
[0359] S190: Determine whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver. If so, execute step S180; otherwise, execute step S191.
[0360] S191: Detect whether the pressure switch is turned on. If so, execute step S150; otherwise, execute step S180.
[0361] S150: Setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0362] S160: Determine whether the transmit power P1 is within the set transmit power threshold range. If so, execute step S170; otherwise, execute step S180.
[0363] S170: Enter the heating mode for the heating cup.
[0364] S180: Output a prompt message indicating that the heating mode is not to be entered, and / or execute S110.
[0365] In one embodiment, the method further includes: after determining that the quality factor value Q1 of the wireless charging transmitter is within a set quality factor threshold range, setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter; judging whether the transmission power P1 is within the set transmission power threshold range, and if so, entering a heating mode for the heating cup.
[0366] In one embodiment, the first transmitting frequency is greater than the resonant frequency F1.
[0367] In one embodiment, the first transmitting frequency is lower than the resonant frequency F1.
[0368] The aforementioned method for controlling a wireless charging transmitter heating a heated cup measures the wireless charging transmitter's quality factor (Q1) after the cup is placed on the transmitter and determines whether Q1 is within a set threshold. This uniquely determines the cup's properties and then activates heating mode to heat the cup. This method not only enables the wireless charging transmitter to heat the cup but also significantly expands the versatility of wireless charging transmitters for heating cups.
[0369] This application also provides another control method for heating a heating cup using a wireless charging transmitter.
[0370] A control method for heating a heating cup by a wireless charging transmitter, such as Figure 19 As shown, the method includes: adjusting the transmission frequency of the wireless charging transmitter and obtaining the resonant frequency F1; judging whether the resonant frequency F1 is within a set resonant frequency threshold range, and if so, entering the heating mode for the heating cup.
[0371] In one embodiment, Figure 19 As shown, after determining that the resonant frequency F1 of the wireless charging transmitter is within the set resonant frequency threshold range, the transmission frequency of the wireless charging transmitter is set to the first transmission frequency, and the transmission power P1 of the wireless charging transmitter is obtained; it is determined whether the transmission power P1 is within the set transmission power threshold range. If so, the heating mode for the heating cup is entered.
[0372] In one embodiment, Figure 16 As shown, the method further includes: before adjusting the transmission frequency of the wireless charging transmitter, determining whether the wireless charging transmitter has received a charging request signal sent by a wireless charging receiver, and if so, prohibiting entering the heating mode for the heating cup.
[0373] In one embodiment, the method further includes: after adjusting the transmission frequency of the wireless charging transmitter, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver; if so, prohibiting the heating cup from entering a heating mode.
[0374] In one embodiment, the method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting the heating cup from entering a heating mode.
[0375] In one embodiment, the wireless charging transmitter includes a pressure switch, and the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0376] In one embodiment, Figure 15 As shown, before adjusting the transmission frequency of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, adjusting the transmission frequency of the wireless charging transmitter to obtain the resonant frequency F1.
[0377] In one embodiment, Figure 20 As shown, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0378] The aforementioned method for controlling a wireless charging transmitter to heat a heated cup measures the transmitter's resonant frequency F1 after the cup is placed on the transmitter and determines whether F1 is within a set threshold. This uniquely determines the nature of the heated cup and then activates heating mode to heat the cup. This method not only enables the wireless charging transmitter to heat the cup but also significantly expands the versatility of wireless charging transmitters for heating cups.
[0379] This application also provides another control method for heating a heating cup using a wireless charging transmitter.
[0380] A control method for heating a heating cup by a wireless charging transmitter, such as Figure 20 As shown, the method includes: setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter; judging whether the transmission power P1 is within a set transmission power threshold range, and if so, entering a heating mode for the heating cup.
[0381] In one embodiment, Figure 21 As shown, the method further includes: before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting entering the heating mode for the heating cup.
[0382] In one embodiment, the method further includes: after setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, determining whether the wireless charging transmitter receives a charging request signal sent by a wireless charging receiver; if so, prohibiting entering a heating mode for the heating cup.
[0383] In one embodiment, the method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting the heating cup from entering a heating mode.
[0384] In one embodiment, the wireless charging transmitter includes a pressure switch, and the method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting entering the heating mode for the heating cup.
[0385] In one embodiment, Figure 20 As shown, before setting the transmission frequency of the wireless charging transmitter to the first transmission frequency to obtain the transmission power P1 of the wireless charging transmitter, the method further includes: detecting whether the pressure switch is turned on, and if so, setting the transmission frequency of the wireless charging transmitter to the first transmission frequency, and obtaining the transmission power P1 of the wireless charging transmitter.
[0386] The aforementioned method for controlling a wireless charging transmitter heating a heating cup involves measuring the heating cup's position on the wireless charging transmitter, setting the transmitter's transmission frequency to a first transmission frequency, and obtaining the transmitter's transmission power P1. By determining whether the transmission power P1 falls within a set transmission power threshold, the wireless charging transmitter is determined to have entered heating mode for the heating cup. This method significantly expands the versatility of wireless charging transmitters for heating cups.
[0387] In order to express this solution more clearly, a specific working situation is described in detail below. It can be understood that the following description is relatively detailed and should not be construed as the scope of protection of this application or a limitation on the scope of protection of this application.
[0388] The wireless charging controller heating cup control method in the present invention mainly includes two steps: the first is the self-learning signal binding process, and the second is the working process of identifying the bound cup. The self-learning mode and working mode can be selected by the DIP switch.
[0389] 1. The process of self-study letter binding cup Figure 24 As shown:
[0390] S410: Set the DIP switch to self-learning mode.
[0391] S420: Place cup CUP1 on the wireless charging transmitter.
[0392] S430: The wireless charging transmitter transmits a specific frequency f0 above the operating frequency range, at a frequency of 1 Hz and a 50% duty cycle, with a specific ping power. The power transmission time pattern is t = ton + toff: during the ton time, the power at the frequency f0 is transmitted, and at the toff time, the power output is stopped.
[0393] S440: Measure the quality factor Q1 of the wireless charging transmitter within the ton time.
[0394] S450: Enter the frequency sweep mode to obtain the resonant frequency F1 (different metals will cause different resonant frequencies of the circuit). For example, sweep the frequency within the frequency range of 100kHz-180kHz, sweep the frequency speed (frequency 500Hz-1KHz), and select the frequency point with the highest efficiency, that is, the resonant frequency F1. In order to improve the safety and stability of the system, the system heating should work in the inductive zone, that is, the working frequency F of the heating cup is F1 <F<180kHz。
[0395] S460: Set the drive frequency to f1 (e.g., 140kHz) and record the transmitted power P1 at this time. Based on P1, one can distinguish between heating cups of different heating materials and two can distinguish between coins and heating cups. Furthermore, for heating cups made of the same material and size and using the same thermally conductive metal sheet, the farther away they are, the greater the Q value and the smaller the P1.
[0396] S470: Write Q1, F1, and P1 to Flash via I2C. Using these three characteristic values, the wireless charging transmitter can exclude other cups and other metal debris and bind to a unique heating cup.
[0397] S480: The quality factor value Q1±0.05, the resonance power F1±0.05 and the transmission power P1±0.05 are used as three characteristic thresholds to bind a unique heating cup, thereby achieving the purpose of learning and binding a unique heating cup.
[0398] 2. The working process of identifying the bound cup is as follows Figure 25 As shown:
[0399] S510: Select the operating mode using the DIP switch. In this mode, you can charge your phone and heat your cup. Phone charging complies with the Qi standard, which I won't explain here.
[0400] S520: Place cup CUP1 on the wireless charging transmitter.
[0401] S530: The wireless charging transmitter transmits a specific frequency f0 greater than the operating frequency range, at a frequency of 1 Hz and a 50% duty cycle, with a specific ping power. The power transmission time pattern is t = ton + toff. During the ton time, the power at the frequency f0 is transmitted, and at the toff time, the power output is stopped.
[0402] S540: A pressure switch is provided on the wireless charging transmitter. Determine whether the pressure switch is turned on. If so, execute step 550; otherwise, execute step 530.
[0403] S550: Measure and record the quality factor value Q2 of the wireless charging transmitter.
[0404] S551: Determine whether the quality factor value Q2 meets the condition: Q1-0.05<=Q2<=Q1+0.05. If so, execute step 560; otherwise, execute step 530.
[0405] S560: Whether the analysis signal is received within 1 second, that is, no charging request is received from the wireless charging receiver. If so, execute step 530; otherwise, execute step 570. If the wireless charging transmitter detects that the Q2 value is within the charging range of the mobile phone within the ton range and receives a charging request signal from the wireless charging receiver, the wireless charging transmitter enters the mobile phone charging mode.
[0406] S570: Enter the sweep mode to obtain the resonant frequency F2 (different metals will cause different resonant frequencies of the circuit). For example, sweep the frequency within the frequency range of 100kHz-180kHz, sweep the frequency speed (frequency 500Hz-1KHz), and select the frequency point with the highest efficiency, that is, the resonant frequency F2. In order to improve the safety and stability of the system, the system heating should work in the inductive zone, that is, the operating frequency F of the heating cup is F2 <F<180kHz。
[0407] S571: Determine whether the quality factor value F2 meets the condition: F1-0.05<=F2<=F1+0.05. If so, execute step 580; otherwise, execute step 530.
[0408] S580: Set the drive frequency to f2 (e.g., 140kHz) and record the transmitted power P2 at this time. Based on P2, one can distinguish between heating cups of different heating materials and two can distinguish between coins and heating cups. Furthermore, for heating cups made of the same material and size and using the same thermally conductive metal sheet, the farther away they are, the greater the Q value and the smaller the P2.
[0409] S581: Determine whether the quality factor value P2 meets the condition: P1-0.05<=P2<=P1+0.05. If so, execute step 590; otherwise, execute step 530.
[0410] S590: Control the wireless charging transmitter to enter a working mode for heating the heating cup.
[0411] In addition, based on the above content, the present application also provides a wireless charging transmitter.
[0412] A wireless charging transmitter, such as Figure 26 As shown, it includes a transmitting module 10, a driving module 20 and a control module 30; the transmitting module 10 is connected to the driving module 20; the driving module 20 is connected to the control module 30; the transmitting module 10 is used to convert electrical energy into electromagnetic waves and radiate them according to the driving signal of the driving module 20; the control module 30 is used to comprehensively process the information data of each functional module and control each functional module, and is characterized in that it also includes a frequency modulation module 40, a quality factor detection circuit and a storage module 50; the frequency modulation module 40 is connected to the control module 30 and the driving module 20 respectively; the quality factor detection circuit is connected to the transmitting module 10; the storage module 50 is connected to the control module 30; the frequency modulation module 40 is used to adjust the frequency of the electromagnetic waves emitted by the transmitting module 10; the quality factor detection circuit is used to measure and output data information related to calculating the quality factor value Q of the transmitting module 10; the storage module 10 stores a computer program that can be read and executed by the control module, and when the control module 30 executes the program, the method described in any one of the above embodiments is implemented.
[0413] In one embodiment, Figure 26 As shown, the wireless charging transmitter also includes a first switch 60 and a second switch 70; the first state of the first switch 60 is used to control the wireless charging transmitter to perform relevant detection and control of whether to enter the heating mode to heat the heating cup; the second state of the first switch 60 is used to control the wireless charging transmitter to execute the learning mode, and learn and bind the relevant detection and control of a specific heating cup; the second switch 70 is used to detect the weight of the object placed on the wireless charging transmitter, or to detect whether the weight of the object placed on the wireless charging transmitter exceeds a set value.
[0414] In one embodiment, the first switch 60 is a dip switch;
[0415] In one embodiment, the second switch 70 is a pressure switch;
[0416] In one embodiment, the wireless charging transmitter further includes a signal transceiver module; the signal transceiver module is connected to the control module; and the signal transceiver module is used to transmit charging information with the wireless charging receiver.
[0417] In one embodiment, the wireless charging transmitter is a mobile phone wireless charging transmitter.
[0418] The wireless heater provided above, by setting a transmitting module 10, a driving module 20, a control module 30, a frequency modulation module 40, a quality factor detection circuit and a storage module 50, enables the wireless heater to have a frequency modulation detection function, a quality factor detection function, and a function of storing later added operating data, so that the wireless heater has the function of learning, binding and confirming specific items, so that the wireless heater can be applied to more items and more categories of items for wireless charging or wireless heating, thereby increasing the versatility and scope of use of the wireless heater.
[0419] In addition, the present application also provides a computer storage medium.
[0420] A computer storage medium stores a computer program that, when executed by a processor, implements the method described in any of the above embodiments. This computer storage medium stores both a wireless charging program and a wireless heating program, facilitating program upgrades and modifications for wireless chargers.
[0421] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.
Claims
1. A control method for heating a heating cup with a wireless charging transmitter, characterized in that: The method includes: obtaining a quality factor value Q1 of the wireless charging transmitter, and determining whether the quality factor value Q1 is within a set quality factor threshold range; if so, controlling the wireless charging transmitter to enter a heating mode for the heating cup; or adjusting the transmission frequency of the wireless charging transmitter and obtaining a resonant frequency F1, and determining whether the resonant frequency F1 is within a set resonant frequency threshold range; if so, controlling the wireless charging transmitter to enter a heating mode for the heating cup; or setting the transmission frequency of the wireless charging transmitter to a first transmission frequency, obtaining a transmission power P1 of the wireless charging transmitter, and determining whether the transmission power P1 is within a set transmission power threshold range; if so, controlling the wireless charging transmitter to enter a heating mode for the heating cup; The method for obtaining the quality factor value Q1 includes: setting the transmission frequency of the wireless charging transmitter to the second transmission frequency, setting the duty cycle of the transmission frequency of the wireless charging transmitter to the first duty cycle, and obtaining the characteristic impedance and loop impedance of the wireless charging transmitter in this state; recording the ratio of the characteristic impedance to the loop impedance as the quality factor value Q1; the method for setting the quality factor threshold range includes: setting the wireless charging transmitter under the same conditions, setting the transmission frequency of the wireless charging transmitter to the third transmission frequency, setting the duty cycle of the transmission frequency of the wireless charging transmitter to the second duty cycle, and obtaining the characteristic impedance and loop impedance of the wireless charging transmitter in this state; recording the ratio of the characteristic impedance to the loop impedance as the quality factor value Q2; setting the range of the quality factor value Q2-N1 to the quality factor value Q2+N2 as The quality factor threshold range; the N1 and the N2 are both positive numbers; the method for setting the resonant frequency threshold range includes: setting the wireless charging transmitter under the same conditions, adjusting the transmission frequency of the wireless charging transmitter and obtaining the resonant frequency F2; setting the range of the resonant frequency F2-N3 to the resonant frequency F2+N4 as the resonant frequency threshold range; the N3 and the N4 are both positive numbers; the method for setting the transmission power threshold range includes: setting the wireless charging transmitter under the same conditions, setting the transmission frequency of the wireless charging transmitter to a fourth transmission frequency, and obtaining the transmission power P2 of the wireless charging transmitter; setting the range of the transmission power P2-N5 to the transmission power P2+N6 as the transmission power threshold range; the fourth transmission frequency is greater than or less than the resonant frequency F2; the N5 and the N6 are both positive numbers.
2. The method according to claim 1, characterized in that The method further includes: determining whether the wireless charging transmitter receives a charging request signal sent by the wireless charging receiver, and if so, prohibiting the heating cup from entering a heating mode.
3. The method according to any one of claims 1-2, wherein the wireless charging transmitter includes a pressure switch, characterized in that: The method further includes: detecting whether the pressure switch is turned on, and if not, prohibiting the heating cup from entering a heating mode.
4. The method according to claim 1, wherein The frequency value of the second transmitting frequency is between 1 Hz and 5 Hz; and the first duty cycle is greater than 30%.
5. The method according to claim 1, wherein The transmission frequency of the wireless charging transmitter is adjusted by frequency sweeping.
6. The method according to claim 1, characterized in that In the heating mode for the heating cup, the transmission frequency of the wireless charging transmitter is controlled to be greater than the resonant frequency F1.
7. A wireless charging transmitter, comprising a transmitting module, a driving module, and a control module; the transmitting module is connected to the driving module; the driving module is connected to the control module; the transmitting module is used to convert electrical energy into electromagnetic waves according to the driving signal of the driving module and radiate them; the control module is used to comprehensively process information data of each functional module and control each functional module, characterized in that: It also includes a frequency modulation module, a quality factor detection circuit and a storage module; the frequency modulation module is connected to the control module and the driving module respectively; the quality factor detection circuit is connected to the transmitting module; the storage module is connected to the control module; the frequency modulation module is used to adjust the frequency of the electromagnetic waves emitted by the transmitting module; the quality factor detection circuit is used to measure and output data information related to the calculation of the quality factor value Q of the transmitting module; the storage module stores a computer program that can be read and executed by the control module, and when the control module executes the program, it implements the method described in any one of claims 1 to 6.
8. The wireless charging transmitter according to claim 7, characterized in that: It also includes a first switch; the first switch is connected to the control module; the first state of the first switch is used to control the wireless charging transmitter to perform the method described in any one of claims 1-6; the second state of the first switch is used to control the wireless charging transmitter to perform the method of setting a threshold range in claim 1.
9. The wireless charging transmitter according to claim 7 or 8, characterized in that: It also includes a second switch; the second switch is connected to the control module; the second switch is used to detect the weight of the item placed on the wireless charging transmitter, or to detect whether the weight of the item placed on the wireless charging transmitter exceeds a set value.
10. A computer storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the control method according to any one of claims 1 to 6 is implemented.
Citation Information
Patent Citations
Heating cup wireless charging transmitting system and wireless charging transmitter
CN210041443U
Heating cup wireless charging transmitting system and wireless charging transmitter
CN210053253U