Disclosure of Invention
The present invention is directed to a wireless receiving and heating system with communication function, wherein a wireless charging related device used for charging a mobile phone is a market trend, a wireless charging product will become a trend in the future, and a wireless charging transmitting device will be visible at any time.
The invention relates to a wireless receiving and heating system with a communication function, which comprises a wireless charging and transmitting device and a wireless receiving and heating device; the wireless charging transmitter comprises a shell, a transmitter coil and a transmitter magnetic isolation disc. A transmitting end coil is arranged at the top in the shell; a transmitting end magnetic isolation disc is arranged in the shell and below the transmitting end coil. The wireless receiving and heating device is arranged on the upper surface of the wireless charging and transmitting device and comprises a containing part, a metal heating plate, a receiving end magnetic separating disc, a receiving end wireless communication device and a receiving end coil. A metal heating plate is arranged at the bottom of the accommodating part; a receiving end magnetism isolating disc is arranged on the lower surface of the metal heating plate; a receiving end coil is arranged below the magnetic isolation disc of the receiving end and corresponds to the transmitting end coil; and the receiving end wireless communication device is arranged on the lower surface of the receiving end separated disk. The wireless charging and transmitting device transmits energy to the wireless receiving and heating device through near-field induction, and objects contained in the containing part in the wireless receiving and heating device can be heated; and the wireless receiving and heating device informs the wireless charging and transmitting device to increase or decrease the energy transmission through digital communication.
In one embodiment, the wireless receiving heating device includes a temperature sensor and a control unit. The temperature sensor is arranged below the metal heating plate and used for detecting the temperature of the metal heating plate; a control unit coupled to the temperature sensor, coupled to the receiving end coil, and arranged below the receiving end magnetic disk; the control unit transmits the temperature information to the transmitting end coil through the receiving end coil by backscattering modulation.
In an embodiment, the control unit includes a rectifying unit, a voltage-reducing unit, a voltage-stabilizing unit and a microcontroller. A rectification unit coupled to the receiving end coil for rectifying the electric signal of the receiving end coil; the voltage reduction unit is coupled to the rectification unit and used for reducing the output voltage of the rectification unit; the voltage stabilizing unit is coupled with the voltage reducing unit and used for stabilizing the output voltage of the voltage reducing unit; and the microcontroller is coupled with the voltage stabilizing unit, the temperature sensor and the two ends of the receiving end coil and is used for executing temperature regulation control and wireless communication transmission after temperature sensing.
In one embodiment, when the wireless charging transmitter and the wireless receiving and heating device perform bidirectional communication, the wireless charging transmitter transmits information to the receiving coil by transmitting a frequency modulation signal; the receiving coil transmits the control signal required for information transmission to the transmitting coil by the backscatter modulation.
In one embodiment, the wireless receiving and heating device is a cup or a bowl.
In an embodiment, the wireless receiving and heating device is a metal plate structure, and the accommodating portion is an upper surface of the metal heating plate.
The invention also discloses a wireless receiving and heating system with communication, which comprises: the wireless charging device comprises a wireless communication transmitting device, a wireless charging transmitting device and a wireless receiving and heating device. The wireless communication transmitting device comprises an outer shell, a communication transmitting end coil and a communication transmitting end magnetic isolation disc. A communication transmitting end coil is arranged at the top in the outer shell; a communication transmitting end magnetic isolation disc is arranged in the outer shell and below the communication transmitting end coil; the wireless charging transmitting device comprises a shell, a transmitting end coil and a transmitting end magnetic isolation disc. A transmitting end coil is arranged at the top in the shell; a transmitting end magnetic isolation disc is arranged in the shell and below the transmitting end coil; the wireless receiving and heating device is arranged on the upper surface of the wireless charging and transmitting device and comprises a metal heating plate, a receiving end magnetic isolation disc, a receiving end wireless communication device and a receiving end coil. The upper surface of the metal heating plate is used for placing a heated object; a receiving end magnetism isolating disc is arranged on the lower surface of the metal heating plate; a receiving end wireless communication device is arranged on the lower surface of the receiving end separated disk; a receiving end coil is arranged below the magnetic disk of the receiving end and corresponds to the communication transmitting end coil; the wireless charging and transmitting device transmits energy to the wireless receiving and heating device through near-field induction, and the heated object in the wireless receiving and heating device can be heated; and the wireless receiving heating device informs the wireless communication transmitting device to increase or decrease the energy transmission by digital communication.
In one embodiment, the wireless receiving heating device includes a temperature sensor and a control unit. The temperature sensor is arranged below the metal heating plate and used for detecting the temperature of the metal heating plate; a control unit coupled to the temperature sensor, coupled to the receiving end coil, and arranged below the receiving end magnetic disk; the control unit transmits the temperature information to the communication transmitting end coil through the receiving end coil by backscattering modulation.
In an embodiment, the control unit includes a rectifying unit, a voltage-reducing unit, a voltage-stabilizing unit and a microcontroller. A rectification unit coupled to the receiving end coil for rectifying the electric signal of the receiving end coil; the voltage reduction unit is coupled to the rectification unit and used for reducing the output voltage of the rectification unit; the voltage stabilizing unit is coupled with the voltage reducing unit and used for stabilizing the output voltage of the voltage reducing unit; and the microcontroller is coupled with the voltage stabilizing unit, the temperature sensor and the two ends of the receiving end coil and is used for executing temperature regulation control and wireless communication transmission after temperature sensing.
In one embodiment, when the wireless communication transmitting device performs bidirectional communication with the wireless receiving and heating device, the wireless communication transmitting device transmits information to the receiving end coil by frequency modulation signal transmission; the receiving end coil transmits the control signal required for information transmission to the communication transmitting end coil by the backscattering modulation.
Through the above description, the present invention can effectively achieve cost reduction and energy conversion efficiency improvement, effectively achieve simple, convenient and practical heat preservation and heating effects without spending much money, completely meet the cost consideration of economic benefits, and can be widely applied.
Detailed Description
The invention discloses a wireless receiving and heating system with a communication function, which can obtain the transmitting energy of a wireless charging transmitting device as the energy required by the heating of an upper device by the wireless charging transmitting device used by an intelligent handheld device, and then uses the electromagnetic induction heating principle of the wireless charging transmitting device, wherein the heating principle is the relevant action of eddy current; wherein the electric energy is converted into heat energy in the ferromagnetic metal above through the change of the magnetic field. That is, the wireless charging transmitter transmits energy to the upper sensor by using near-field sensing, i.e. inductive coupling, and the sensor uses the received energy for its own operation and can detect the temperature of the ferromagnetic metal conversion heat energy at the upper side, and then transmits the data of energy control to the lower wireless charging transmitter, and uses the temperature value as the basis of energy control, thereby achieving the control of the transmitted energy of the wireless charging transmitter. The method of communication is that the upper heating device informs the wireless charging transmitting device to increase or decrease the power in a digital communication mode so as to achieve the effect of stabilizing the heating temperature. The digital communication may be implemented in one-way or two-way communication.
Various exemplary embodiments are described more fully hereinafter with reference to the accompanying drawings, in which some exemplary embodiments are shown. The inventive concept may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. In the figures, the size and relative dimensions of the coils, heating plates and control unit may be exaggerated for clarity. Like numbers refer to like elements throughout.
It will be understood that, although the terms upper, lower, upper or top, etc. may be used herein to describe various elements' positions, these elements should not be limited by these terms. These terms are used to clearly distinguish one element from another element and their differing positions. Thus, the upper (or lower) component discussed below may be referred to as the upper (or lower) component without departing from the teachings of the present concepts; the same reference to "top" as used herein is merely to illustrate the relative positioning of the components and does not necessarily refer to the correspondence of the top to the bottom of each component. The terms "first" or "second" are used herein merely to clearly distinguish one element from another, and do not necessarily have a sequential relationship. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Also, the terms "at least one" or "a plurality" may be used herein to describe a plurality of components having more than a single, but such plurality of components is not limited to practice with only one, two, three, or more than four component numbers to indicate the technology being practiced. The interpretation of these terms is in conjunction with the description.
Fig. 1 is a perspective view of a wireless receiving and heating system with communication function according to a first embodiment of the present invention, which includes a wireless charging and transmitting device 10 and a wireless receiving and heating device 20, wherein the wireless receiving and heating device 20 is disposed on an upper surface of the wireless charging and transmitting device 10. The wireless charging/transmitting device 10 of the present invention is used to obtain the transmitting energy of the wireless charging/transmitting device 10 as the energy source for heating the upper device, for example, the wireless charging/transmitting device related to the Qi standard of WPC or the wireless charging/transmitting device related to the A4WP standard of AFA can be used.
The wireless receiving and heating device 20 of the present invention utilizes the electromagnetic induction heating principle in the wireless charging and transmitting device 10, and the heating principle is related to the eddy current; the electric energy is changed through the magnetic field and then converted into heat energy in the ferromagnetic metal above the electric energy. Fig. 2 is a perspective view of an implementation device of the wireless charging and transmitting device 10.
In fig. 3 and 4, the first embodiment of the wireless receiving and heating system with communication function of the present invention includes the wireless charging and transmitting device 10 and the wireless receiving and heating device 20, wherein the wireless charging and transmitting device 10 includes a housing 11, a transmitting coil 16 and a transmitting disc 14, and the housing 11 is the housing 11 shown in the appearance of the wireless charging and transmitting device 10 shown in fig. 2. The transmitting end coil 16 is arranged at the top in the shell 11; a transmitting side antipad 14 is disposed within the housing 11 and below the transmitting side coil 16. The wireless receiving and heating device 10 is disposed on the upper surface of the wireless charging and transmitting device 10, that is, on the upper surface of the housing 11 of the wireless charging and transmitting device 10, and includes a receiving portion 21 (as shown in fig. 1), a metal heating plate 22, a receiving-end magnetic separating disc 24, a receiving-end wireless communication device 25, and a receiving-end coil 26. The accommodating part 21 can accommodate beverage or liquid needing heating and heat preservation or objects in a thick liquid state; wherein the metal heating plate 22 is disposed at the bottom of the accommodating portion 21; the receiving end is arranged on the lower surface of the metal heating plate 22 through a magnetic disc 24; the receiving end wireless communication device 25 is arranged on the lower surface of the receiving end magnetic isolation disc 24; the receiving-end coil 26 is provided below the receiving-end partition plate 24 and is disposed at a position corresponding to the transmitting-end coil 16 in the wireless charging and transmitting device 10.
In one embodiment, the receiving wireless communication device 25 is disposed between the receiving magnetic isolation disc 24 and the receiving coil 26; the receiving-side wireless communication device 25 and the receiving-side coil 26 may be disposed on the same plane, that is, the receiving-side wireless communication device 25 may be disposed on both sides of the receiving-side coil 26. The receiving-end wireless communication device 25 can perform communication between the wireless reception heating device 20 of the present invention and the wireless charging transmission device 10 to transmit temperature data and transmit a signal controlling temperature.
The wireless charging and transmitting device 10 of the present invention transmits energy to the wireless receiving and heating device 20 by near-field induction, i.e. inductive coupling, and enables the contents of the accommodating portion 21 in the wireless receiving and heating device 20 to be heated; and the wireless receiving and heating device 20 can perform the function of informing the wireless charging and transmitting device 10 to increase or decrease the energy transmission in digital communication so as to control the heating temperature adjustment.
The metal heater plate 22 functions primarily as a heating region, and outside the region of the receiving end separated from the disk 24, when the changing magnetic field encounters a conductor such as metal, which is a monolithic piece of metal, an eddy current effect is created. The eddy current generates a large amount of heat, and like an induction cooker, the eddy current effect can be utilized to convert electric energy into heat energy.
The transmitting end magnetic isolation disc 14 and the receiving end magnetic isolation disc 24 have the functions of magnetic conduction and magnetic blocking. The magnetic conduction function is explained by taking the Qi wireless charging standard as an example, and the principle is electromagnetic induction. The transmitting end of the wireless charging generates an interactive magnetic field, and in order to enable the magnetic field energy transmitted by the primary coil to act on the receiving end of the wireless charging as much as possible, the magnetic of the coil 16 of the transmitting end needs to be guided. In addition, after the receiving-end magnetic shielding disc 24 is added to the receiving-end coil 26, the magnetic lines of force will be concentrated, and the magnetic lines of force will be relatively dispersed in the area without the magnetic shielding disc guide. The magnetic shield disk 24 region at the receiving end should not only be able to conduct magnetism effectively, but also play a role in magnetic shield. The purpose of the magnetic shield is to constrain the magnetic field generated by the wireless charging transmitter so that the magnetic field can only act on the receiver coil 26.
The receiving end coil 26 adopts a non-contact close-range coil resonance principle to transmit energy and communication transmission, wherein a coil is arranged at each of the transmitting end and the receiving end, and the transmitting end coil 16 is used for generating electromagnetic signals; the receiving coil 26 is small and generates power by inducing the electromagnetic signal of the transmitting end to provide power for the operation of the wireless receiving heating device 20.
Fig. 5 is a view from V to V of fig. 4, that is, fig. 5 is a schematic view of a bottom implementation of the wireless receiving and heating device of fig. 4, in which the metallic heating plate 22, the receiving-end magnetic separation disc 24 and the receiving-end coil 26 are related, and a temperature sensor 28 and a control unit 27 are included in the wireless receiving and heating device 20; the temperature sensor 28 is disposed below the metal heating plate 22 for detecting the temperature of the metal heating plate 22; the control unit 27 is coupled to the temperature sensor 28, coupled to the receiving coil 26, and disposed under the receiving diaphragm 24. The control unit 27 can transmit the temperature information to the transmitting end coil by a backscatter modulation through the receiving end coil 26, which can be a transmission mode of one-way communication.
The control unit 27 and the temperature sensor 28 in fig. 5 are mainly used for temperature sensing and wireless communication transmission. When the standard wireless charging and transmitting device 10 below performs energy transmission on the wireless receiving and heating device 20, the electromagnetic signal of the transmitting end generates power supply through the action of the receiving end coil 26, and the power supply is provided to the control unit 27, and the control unit 27 starts to detect the temperature through the temperature sensor 28. When the temperature is higher than the set value, the control unit 27 transmits the temperature information to the transmitting terminal coil 16 through the receiving terminal coil 26 by backscattering modulation to inform the transmitting terminal of reducing power transmission; when the temperature is lower than the set value, the control unit 27 transmits the temperature information to the transmitting end coil 16 through the receiving end coil 26 by backscatter modulation to inform the transmitting end of transmitting of increasing power, thereby achieving the effect of stabilizing the temperature.
Fig. 6 mainly illustrates the circuit blocks inside the control unit 27, and the control unit 27 includes a rectifying unit 32, a voltage reducing unit 34, a voltage stabilizing unit 36 and a microcontroller 30. The rectifying unit 32 is coupled to the receiving end coil 26, and is used for rectifying the electrical signal of the receiving end coil 26; the voltage reducing unit 34 is coupled to the rectifying unit 32, and mainly reduces the output voltage of the rectifying unit 32 to reduce the output voltage; the voltage stabilizing unit 36 is coupled to the voltage reducing unit 34, and is used for stabilizing the voltage value output by the voltage reducing unit 34, so as to avoid the unstable voltage; the microcontroller 30 is coupled to the voltage stabilizing unit 36, the temperature sensor 28, and both ends of the receiving end coil 26, as shown in fig. 6, for performing temperature control after temperature sensing and wireless communication transmission.
Furthermore, the present invention transmits energy to the upper wireless receiving and heating device 20 by the transmission of the wireless charging and transmitting device 10, and provides the energy received by the sensing devices such as the control unit 27 and the temperature sensor 28 for its operation, and at the same time, the control unit 27 detects the temperature of the upper ferromagnetic metal converted thermal energy, and transmits the data of energy control to the lower wireless charging and transmitting device 10, and the temperature value can be used as the basis of energy control, thereby achieving the purpose of controlling the magnitude of the transmitted energy of the wireless charging device.
The working mode of the invention on communication is that the upper heating device informs the wireless charging transmitting device to increase or decrease the electric quantity in a digital communication mode so as to achieve the effect of stabilizing the heating temperature. The digital communication mode can be one-way or two-way communication; during two-way communication, the wireless charging and transmitting device 10 transmits the temperature information to the receiving coil 26 in a Frequency Modulation (FM) transmission manner, and then transmits the temperature information back to the transmitting coil 16 of the wireless charging and transmitting device 10 in a backscatter modulation manner to generate a required control signal. Furthermore, unidirectional communication can also be performed using the backscatter modulation alone.
In fig. 1 of the present invention, the whole structure of the wireless receiving and heating device 20 is a cup structure, which can be used for carrying beverages or liquids to be heated. Fig. 7 is a perspective view schematically illustrating a second embodiment of the present invention, except that the wireless receiving and heating device 20 in fig. 7 has an overall structure of a bowl body structure of a soup bowl 50, and can be used for carrying soup noodles, porridge, fried rice, etc. In the bottom part there is also a metal heating plate 52 and the same components as in fig. 3, which are not described in detail here.
Fig. 8 shows a third embodiment of the present invention, which can be used for heating food to be thawed. The third embodiment is different from the first embodiment except that the external structure of the wireless receiving heating device 40 is a metal plate of a metal heating plate 42, and the accommodating portion is the upper surface of the metal heating plate 42. In addition to this implementation, a single wireless charging and transmitting device 10 can be implemented in the third embodiment. On the other hand, the present invention can be implemented with an embodiment of a wireless charging transmission device 10 and a wireless communication transmission device 10a, which becomes an embodiment of the fourth embodiment, as shown in fig. 9.
In the third embodiment of fig. 8, when a single wireless charging/transmitting device 10 is implemented, the wireless receiving/heating system with communication function includes a wireless charging/transmitting device 10 and a wireless receiving/heating device 40, and the wireless charging/transmitting device 10 also includes a housing (not shown in fig. 8), a transmitting coil 16 and a transmitting disc 14. Wherein the transmitting end coil 16 is arranged at the top in the shell; a transmitting end magnetic shield 14 is provided within the housing 11 and below the transmitting end coil 16. The wireless receiving and heating device 40 is also disposed on the upper surface of the wireless charging and transmitting device 10, and the wireless receiving and heating device 40 includes a metal heating plate 42, a receiving-end magnetic separating disc 44, a receiving-end wireless communication device (not shown) and a receiving-end coil 46; wherein the upper surface of the metal heating plate 42 is directly placed with the heated object, such as the whole fish, beef strips or chicken legs to be defrosted, and the invention can defrosted the food; a receiving end magnetic disk 44 is arranged on the lower surface of the metal heating plate 42; the receiving-end wireless communication device is arranged on the lower surface of the receiving-end magnetic isolation disc 44, as shown in the embodiments of fig. 3 and 4; the receiving-end coil 46 is provided below the receiving-end diaphragm 44 and corresponds to the transmitting-end coil 16. Wherein, the wireless charging and transmitting device 10 transmits energy into the wireless receiving and heating device 40 by near-field induction, and enables the heated object in the wireless receiving and heating device 40 to be heated; and the wireless receiving and heating device 40 performs the transmission of informing the wireless charging transmission device 10 to increase or decrease the power in digital communication.
On the other hand, when implementing the embodiment of a wireless charging transmission device 10 and a wireless communication transmission device 10a as shown in fig. 9, the difference is that: the receiving end coil 46 and the metal heating plate 42 of the wireless receiving and heating device 40 of the present invention can belong to different corresponding positions. The wireless communication transmitter 10a includes an outer housing (not shown in fig. 9), a communication transmitter coil 16a and a communication transmitter magnetic shield 14 a. A communication transmitting end coil 16a is arranged at the top in the outer shell; a communication transmitting terminal magnetic shield 14a is disposed in the outer case below the communication transmitting terminal coil 16 a.
Fig. 9 mainly separates the communication transmitting end coil 16a of the wireless communication transmitting device 10a from the transmitting end coil 16 for heating in the wireless charging transmitting device 10 at different positions, and transmits the energy to the metal heating plate 42 above by using the transmitting end coil 16 of the wireless charging transmitting device 10 as a heating coil. In addition, the wireless communication transmitter 10a provides the energy received by the control unit 27 and the temperature sensor 28 for its operation, the control unit 27 and the temperature sensor 28 are configured in the same manner as the first embodiment, and the control unit 27 detects the temperature of the ferromagnetic metal-to-heat energy conversion at the upper side, and transmits the data of the energy control to the wireless communication transmitter 10a at the lower side to use the temperature value as the energy control basis, thereby achieving the control of the transmitted energy of the wireless charging device.
Similarly, the digital communication method of the fourth embodiment may be one-way or two-way communication, and during two-way communication, the wireless communication transmitter 10a transmits information to the receiving coil 46 by frequency modulation, and transmits temperature information back to the communication transmitter 16a by backscatter modulation to provide the wireless communication transmitter 10a with the required control signal. Unidirectional communication may also be performed using backscatter modulation alone.
In summary, the present invention discloses a wireless receiving and heating system with communication function, which is described in the above modes, energy is transmitted by inductive coupling between the wireless charging and transmitting device 10 and the upper wireless receiving and heating device 20, and the two devices do not need to be connected by wires, so that no conductive contact is exposed in both the wireless charging and transmitting device 10 and the upper wireless receiving and heating device 20, and thus, the present invention is more convenient compared with the way of transmitting energy by wires. Moreover, the technology of the invention can expand the application range of wireless charging products or devices, is not limited to being used as wireless charging products, but expands the application of the products to daily necessities, such as: vacuum cups, vacuum bottles, heat-retaining bowls, child feeding bowls, food thawing plates, and the like. It is obvious that the technical content of the invention has powerful patent requirements such as novelty, creativity and practicability.
However, the above description of the present invention is only illustrative of the preferred embodiments, and the scope of the present invention should not be limited by the description, and any local variations, modifications, or additions may be made without departing from the scope of the present invention.