CN109510320B - Wireless power supply system for cooking appliance and cooking appliance - Google Patents
Wireless power supply system for cooking appliance and cooking appliance Download PDFInfo
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- CN109510320B CN109510320B CN201710834242.4A CN201710834242A CN109510320B CN 109510320 B CN109510320 B CN 109510320B CN 201710834242 A CN201710834242 A CN 201710834242A CN 109510320 B CN109510320 B CN 109510320B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Food Science & Technology (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Cookers (AREA)
Abstract
The invention discloses a wireless power supply system for a cooking appliance and the cooking appliance, wherein the wireless power supply system comprises: the receiving device comprises a receiving coil, a voltage processing circuit, an energy storage circuit, a power feedback circuit and a communication modulation circuit; the transmitting device comprises a transmitting coil, a coil driving circuit, a first control chip and a communication demodulation circuit; when the power failure of the stable power supply is caused by sudden increase of the load, the energy storage circuit supplies power to the power feedback circuit, the communication modulation circuit modulates the output power to load the power modulation signal to the receiving coil, the communication demodulation circuit demodulates the power modulation signal to send the output power to the first control chip, and the first control chip adjusts the transmitting power of the transmitting device according to the output power. The system can supply power to the power feedback circuit through the energy storage circuit when the power failure of the stable power supply is caused by sudden increase of the load, so that power adjustment can be continuously carried out, and the working reliability is improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a wireless power supply system for a cooking appliance and the cooking appliance.
Background
At present, in power control of a wireless power supply system of an electric cooking appliance, after a receiving device wirelessly supplies power, a main control chip of the receiving device sends output power data of the receiving device to a transmitting device, and a control chip of the transmitting device receives the output power data and adjusts transmitting power of the transmitting device according to requirements.
However, the above power control method needs to pass through the line disk carrier, the data transmission speed is slow, and usually the receiving device can feed back one-time output power to the transmitting device after more than 30ms, so that the generating device performs power regulation slowly. If the load of the receiving device suddenly becomes large, the voltage of a stable power supply provided for the main control chip is possibly pulled down, the power failure condition of the main control chip of the receiving device occurs, and then the power adjustment cannot be normally carried out, and the normal work of a wireless power supply system is influenced.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first object of the present invention is to provide a wireless power supply system for a cooking appliance, which can supply power to a power feedback circuit through an energy storage circuit when a stable power supply fails due to sudden load increase, so that power adjustment can be continued, thereby improving the reliability of operation.
A second object of the present invention is to provide a cooking appliance.
To achieve the above object, an embodiment of a first aspect of the present invention provides a wireless power supply system for a cooking appliance, including: the receiving device comprises a receiving coil, a voltage processing circuit, an energy storage circuit, a power feedback circuit and a communication modulation circuit, wherein the voltage processing circuit is connected with the receiving coil, the voltage processing circuit is connected with the energy storage circuit, the energy storage circuit is connected with the power feedback circuit, the power feedback circuit is connected to the receiving coil through the communication modulation circuit, and the power feedback circuit is used for detecting the output power of the receiving device; the transmitting device comprises a transmitting coil, a coil driving circuit, a first control chip and a communication demodulation circuit, wherein the transmitting coil is matched with the receiving coil, the coil driving circuit is connected with the transmitting coil, the first control chip is respectively connected with the coil driving circuit and the communication demodulation circuit, and the communication demodulation circuit is connected with the transmitting coil; the first control chip drives the transmitting coil to generate an alternating electromagnetic field by controlling the coil driving circuit, the receiving coil generates an induced voltage signal according to the alternating electromagnetic field, and the voltage processing circuit processes the induced voltage signal to output a stable power supply so as to supply power to a load and charge the energy storage circuit; and when the load suddenly becomes large to cause the power failure of the stable power supply, the energy storage circuit supplies power to the power feedback circuit, the communication modulation circuit modulates the output power to load a power modulation signal to the receiving coil, the communication demodulation circuit receives the power modulation signal through the transmitting coil and demodulates the power modulation signal to send the output power to the first control chip, and the first control chip adjusts the transmitting power of the transmitting device according to the output power to match the transmitting power with the output power.
According to the wireless power supply system for the cooking appliance of the embodiment of the invention, the first control chip drives the transmitting coil to generate the alternating electromagnetic field by controlling the coil driving circuit, the receiving coil generates the induced voltage signal according to the alternating electromagnetic field, the voltage processing circuit processes the induced voltage signal to output the stable power supply to supply power to the load and charge the energy storage circuit, and, when the power failure of the stable power supply is caused by sudden increase of the load, the energy storage circuit supplies power to the power feedback circuit, the communication modulation circuit modulates the output power to load a power modulation signal to the receiving coil, the communication demodulation circuit receives the power modulation signal through the transmitting coil, and demodulating the power modulation signal to send the output power to the first control chip, and adjusting the transmitting power of the transmitting device by the first control chip according to the output power so as to match the transmitting power with the output power. Therefore, when the power failure of the stable power supply is caused by sudden increase of the load, the system can supply power to the power feedback circuit through the energy storage circuit, so that power adjustment can be continuously carried out, and the working reliability is improved.
In addition, the wireless power supply system for the cooking appliance according to the present invention may further have the following additional technical features:
in one embodiment of the invention, the energy storage circuit comprises an energy storage capacitor or an energy storage battery.
In an embodiment of the present invention, the voltage processing circuit includes a rectifier bridge and a voltage stabilizing unit, a first input terminal of the rectifier bridge is connected to one end of the receiving coil, a second input terminal of the rectifier bridge is connected to the other end of the receiving coil, an output terminal of the rectifier bridge is connected to the voltage stabilizing unit, and the voltage stabilizing unit outputs the stabilized voltage power to the load and the energy storage circuit.
In an embodiment of the present invention, a diode is further connected between the voltage stabilizing unit and the energy storage circuit, an anode of the diode is connected to the output terminal of the voltage stabilizing unit, and a cathode of the diode is connected to the energy storage circuit.
In one embodiment of the invention, the cooking appliance comprises a pot cover and a pot body, wherein the receiving device is arranged on the pot cover and the transmitting device is arranged on the pot body.
In one embodiment of the invention, when the energy storage circuit comprises an energy storage capacitor, the capacity of the energy storage capacitor is determined according to the power consumption of the power feedback circuit.
In one embodiment of the invention, the transmitting coil is of comparable size and is arranged coaxially with the receiving coil.
In one embodiment of the invention, the distance between the transmitting coil and the receiving coil is 0-50 mm.
In order to achieve the above object, a cooking appliance according to an embodiment of a second aspect of the present invention is provided, which includes the wireless power supply system for a cooking appliance according to an embodiment of the first aspect of the present invention.
According to the cooking utensil provided by the embodiment of the invention, through the wireless power supply system, when the stable power supply is powered off due to sudden increase of the load, the power feedback circuit is powered on through the energy storage circuit, so that power adjustment can be continuously carried out, and the working reliability is improved.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a block schematic diagram of a wireless power supply system for a cooking appliance in the related art;
fig. 2 is a block schematic diagram of a wireless power supply system for a cooking appliance according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of the location of the transmit and receive coils according to one embodiment of the invention; and
fig. 4 is a block schematic diagram of a wireless power supply system for a cooking appliance according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the related art, as shown in fig. 1, a wireless power supply system for a cooking appliance generally includes: a receiving apparatus 10 and a transmitting apparatus 20, the receiving apparatus 10 may include: the receiving coil 101, the voltage processing circuit 102, the power feedback circuit 104 and the communication modulation circuit 105, the transmitting device 20 may include: the transmitting coil 201, the coil driving circuit 202, the first control chip 203 and the communication demodulation circuit 204 are connected in the manner shown in fig. 1, which is not described herein again.
The transmitting coil 201 is a power transmitting coil, the receiving coil 101 is a power receiving coil, the two coils are adjacently placed, and after a user powers on the cooking utensil, the first control chip 203 controls the coil driving circuit 202 to start working and drives the transmitting coil 201 to generate an alternating electromagnetic field. When the receiving coil 101 senses the alternating electromagnetic field, an induced voltage signal is generated according to the alternating electromagnetic field, and then the voltage processing circuit 102 processes the induced voltage signal to output a stable power supply so as to supply power to the load and the power feedback circuit 104. After the power feedback circuit 104 is powered on, the power feedback circuit 104 detects the output power of the receiving device 10, modulates the output power through the communication modulation circuit 105 to generate a power modulation signal, loads the power modulation signal on the receiving coil 101, generates mutual inductance on the transmitting coil 201, demodulates the power modulation signal through the communication demodulation circuit 204, and the first control chip 203 can obtain the output power of the receiving device 10 according to the demodulated power modulation signal and adjust the transmitting power of the transmitting device 20 according to the output power, so that the transmitting power is matched with the output power.
However, the transmitting coil 201 and the receiving coil 101 transmit both power and signals, and the modulation and demodulation of the power signal takes about 30ms at least to complete, so the output power feedback time of the receiving device 10 is long. If the load of the receiving device 10 is suddenly increased and the suddenly increased load power is much larger than the transmitting power of the transmitting device 20, it is very likely to cause the stable power source to be directly pulled down to zero, and then the power feedback circuit 104 is powered off, so that the power signal cannot be normally transmitted, the transmitting device 20 cannot receive the power data, the power adjustment cannot be normally completed, and the normal operation of the whole wireless power supply system is affected.
Therefore, the embodiment of the invention provides a novel wireless power supply system for a cooking appliance and the cooking appliance.
A wireless power supply system for a cooking appliance and a cooking appliance having the same proposed according to embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 2 is a block schematic diagram of a wireless power supply system for a cooking appliance according to one embodiment of the present invention. As shown in fig. 2, the wireless power supply system includes: a receiving device 10 and a transmitting device 20.
The receiving device 10 includes a receiving coil 101, a voltage processing circuit 102, an energy storage circuit 103, a power feedback circuit 104 and a communication modulation circuit 105, the voltage processing circuit 102 is connected to the receiving coil 101, the voltage processing circuit 102 is connected to the energy storage circuit 103, the energy storage circuit 103 is connected to the power feedback circuit 104, the power feedback circuit 104 is connected to the receiving coil 101 through the communication modulation circuit 105, and the power feedback circuit 104 is used for detecting output power of the receiving device 10. The transmitting device 20 comprises a transmitting coil 201, a coil driving circuit 202, a first control chip 203 and a communication demodulation circuit 204, wherein the transmitting coil 201 is matched with the receiving coil 101, the coil driving circuit 202 is connected with the transmitting coil 201, the first control chip 203 is respectively connected with the coil driving circuit 202 and the communication demodulation circuit 204, and the communication demodulation circuit 204 is connected with the transmitting coil 201.
The first control chip 203 drives the transmitting coil 201 to generate an alternating electromagnetic field by controlling the coil driving circuit 202, the receiving coil 101 generates an induced voltage signal according to the alternating electromagnetic field, and the voltage processing circuit 102 processes the induced voltage signal to output a stable power supply to supply power to a load and charge the energy storage circuit 103. And when the power failure of the stable power supply is caused by sudden increase of the load, the energy storage circuit 103 supplies power to the power feedback circuit 104, the communication modulation circuit 105 modulates the output power to load a power modulation signal to the receiving coil 101, the communication demodulation circuit 204 receives the power modulation signal through the transmitting coil 203 and demodulates the power modulation signal to send the output power to the first control chip 203, and the first control chip 203 adjusts the transmitting power of the transmitting device 201 according to the output power so that the transmitting power is matched with the output power.
In an embodiment of the present invention, as shown in fig. 3, the cooking appliance may include a lid 100 and a pot body 200, wherein the receiving device 10 may be disposed on the lid 100 and the emitting device 20 may be disposed on the pot body 200. The cooking pot can be an electric pressure cooker or an electric cooker and the like. Furthermore, the transmitting coil 201 has a size equivalent to that of the receiving coil 101 and is coaxially disposed so that the receiving coil 101 can well receive the alternating electromagnetic field generated by the transmitting coil 201. The distance between the transmitting coil 201 and the receiving coil 101 may be 0-50mm so that the receiving coil 101 can generate an induced voltage within the electromagnetic field radiation range of the transmitting coil 201. The frequency of the alternating electromagnetic field may be 80KHz-300 KHz.
It should be noted that, when the sizes of the transmitting coil 201 and the receiving coil 101 and the number of windings of the coils are substantially the same, the transmitting coil 201 and the receiving coil 101 have the same size. The size includes the diameter size, the coil thickness size, the shape size, and the like of the transmitting coil 201 and the receiving coil 101.
Specifically, as shown in fig. 3, it is ensured by mechanical positioning that the receiving coil 101 on the lid 100 and the transmitting coil 201 on the body 200 are coaxial when the user covers the lid 100.
After a user powers on the pot body 200 of the cooking appliance, the coil driving circuit 202 in the pot body 200 starts to work and drives the transmitting coil 201 arranged on the pot body 200 to generate an alternating electromagnetic field. When the receiving coil 101 disposed on the lid 100 senses the alternating electromagnetic field, an induced voltage signal is generated according to the alternating electromagnetic field, and then the voltage processing circuit 102 in the lid 100 processes the induced voltage signal to output a stable power supply, so as to supply power to the load and the power feedback circuit 104 disposed in the lid 100 and charge the energy storage circuit 103. The load may include a pressure detection sensor, a temperature detection sensor, a humidity detection sensor, a display, a signal processing module, and the like. The load that sets up in pot cover 100 begins work after getting it powered on, for example, the temperature value that the temperature detection sensor begins real-time detection cooking pot to can transmit the temperature value that detects to the display in pot cover 100, show through the display, make the user can know the temperature information of current cooking pot in real time. Meanwhile, the power feedback circuit 104 works after being powered on, the power feedback circuit 104 detects the output power of the receiving device 10, modulates the output power through the communication modulation circuit 105 to generate a power modulation signal, loads the power modulation signal on the receiving coil 101, and then generates mutual inductance on the transmitting coil 201, the communication demodulation circuit 204 receives the power modulation signal through the transmitting coil 201 and can demodulate the power modulation signal, and the first control chip 203 can obtain the output power of the receiving device 10 according to the demodulated power modulation signal and adjust the transmitting power of the transmitting device 20 according to the output power, so that the transmitting power is matched with the output power.
When the load suddenly increases to cause the power failure of the stable power supply, the power feedback circuit 104 can still maintain the power supply for a period of time due to the existence of the energy storage circuit 103, so that the receiving device 10 can continue to feed back the output power to the transmitting device 20, the power adjustment can be continued, and the reliability of the operation of the wireless power supply system is improved.
In embodiments of the present invention, the tank circuit 103 may comprise a tank capacitor or a tank battery. When the energy storage circuit 103 includes an energy storage capacitor, the capacity of the energy storage capacitor is determined according to the power consumption of the power feedback circuit 104. It should be noted that, when the power failure occurs in the stable power supply, the energy storage capacity or the energy storage battery can maintain the power supply of the power feedback circuit 104 for more than 50 ms.
According to an embodiment of the present invention, as shown in fig. 4, the voltage processing circuit 102 includes a rectifying bridge 1021 and a voltage stabilizing unit 1022. A first input end of the rectifier bridge 1021 is connected with one end of the receiving coil 102, a second input end of the rectifier bridge 1021 is connected with the other end of the receiving coil 101, an output end of the rectifier bridge 1021 is connected with the voltage stabilizing unit 1022, and the voltage stabilizing unit 1022 outputs a stabilized voltage power to the load and the energy storage circuit 103.
Specifically, the voltage stabilizing unit 1022 may include a 7805 three-terminal integrated voltage regulator, an input terminal of the voltage stabilizing unit 1022 is connected to an output terminal of the rectifier bridge 1021, an output terminal of the voltage stabilizing unit 1022 is connected to the energy storage circuit 103, and the voltage stabilizing unit 1022 may output a stable direct current (stabilized voltage power) to the load and the energy storage circuit 103, so as to supply power to the energy storage circuit 103 and the load.
Further, according to an embodiment of the present invention, as shown in fig. 4, a diode D is further connected between the voltage stabilizing unit 1022 and the energy storage circuit 103, an anode of the diode D is connected to the output terminal of the voltage stabilizing unit 1022, and a cathode of the diode D is connected to the energy storage circuit 103. The diode D can prevent the current from flowing backwards, and the working reliability of the wireless power supply system is further improved.
It is understood that the coil driving circuit 202 may include a driving unit, a bridge circuit connected to the driving unit, the driving unit may be a PWM (Pulse Width Modulation) driving circuit, and the bridge circuit may be a half-bridge circuit or a full-bridge circuit, which is not limited in particular. The communication demodulation circuit 204 and the communication modulation circuit 105 may be conventional modulation and demodulation circuits, and are not particularly limited.
In summary, according to the wireless power supply system for a cooking appliance of the embodiment of the present invention, a first control chip drives a transmitting coil to generate an alternating electromagnetic field by controlling a coil driving circuit, a receiving coil generates an induced voltage signal according to the alternating electromagnetic field, a voltage processing circuit processes the induced voltage signal to output a stable power source to supply power to a load and charge an energy storage circuit, and the stable power source is powered down when the load suddenly becomes large, the energy storage circuit supplies power to a power feedback circuit, a communication modulation circuit modulates output power to load a power modulation signal to the receiving coil, a communication demodulation circuit receives the power modulation signal through the transmitting coil and demodulates the power modulation signal to transmit the output power to the first control chip, the first control chip adjusts the transmitting power of a transmitting device according to the output power, to match the transmit power to the output power. Therefore, when the power failure of the stable power supply is caused by sudden increase of the load, the system can supply power to the power feedback circuit through the energy storage circuit, so that power adjustment can be continuously carried out, and the working reliability is improved.
In order to realize the embodiment, the invention further provides a cooking appliance.
The cooking appliance provided by the embodiment of the invention comprises the wireless power supply system for the cooking appliance provided by any one of the above embodiments of the invention. Wherein, the cooking utensil can be one of an electric pressure cooker or an electric cooker.
According to the cooking utensil provided by the embodiment of the invention, through the wireless power supply system, when the stable power supply is powered off due to sudden increase of the load, the power feedback circuit is powered on through the energy storage circuit, so that power adjustment can be continuously carried out, and the working reliability is improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A wireless power supply system for a cooking appliance, comprising:
the receiving device comprises a receiving coil, a voltage processing circuit, an energy storage circuit, a power feedback circuit and a communication modulation circuit, wherein the voltage processing circuit is connected with the receiving coil, the voltage processing circuit is connected with the energy storage circuit, the energy storage circuit is connected with the power feedback circuit, the power feedback circuit is connected to the receiving coil through the communication modulation circuit, and the power feedback circuit is used for detecting the output power of the receiving device;
the transmitting device comprises a transmitting coil, a coil driving circuit, a first control chip and a communication demodulation circuit, wherein the transmitting coil is matched with the receiving coil, the coil driving circuit is connected with the transmitting coil, the first control chip is respectively connected with the coil driving circuit and the communication demodulation circuit, and the communication demodulation circuit is connected with the transmitting coil;
the first control chip drives the transmitting coil to generate an alternating electromagnetic field by controlling the coil driving circuit, the receiving coil generates an induced voltage signal according to the alternating electromagnetic field, and the voltage processing circuit processes the induced voltage signal to output a stable power supply so as to supply power to a load and charge the energy storage circuit;
when the load suddenly becomes large to cause the power failure of the stable power supply, the energy storage circuit supplies power to the power feedback circuit, the communication modulation circuit modulates the output power to load a power modulation signal to the receiving coil, the communication demodulation circuit receives the power modulation signal through the transmitting coil and demodulates the power modulation signal to send the output power to the first control chip, and the first control chip adjusts the transmitting power of the transmitting device according to the output power to enable the transmitting power to be matched with the output power; when the power failure occurs to the stabilized power supply, the electric quantity stored in the energy storage circuit can enable the power supply of the power feedback circuit to be maintained for more than a preset time, and the preset time is longer than the time required by the modulation and demodulation of the power signal.
2. The wirelessly powered system for a cooking appliance of claim 1, wherein the energy storage circuit comprises an energy storage capacitor or an energy storage battery.
3. The wireless power supply system for the cooking appliance according to claim 1, wherein the voltage processing circuit includes a rectifier bridge and a voltage stabilizing unit, a first input terminal of the rectifier bridge is connected to one end of the receiving coil, a second input terminal of the rectifier bridge is connected to the other end of the receiving coil, an output terminal of the rectifier bridge is connected to the voltage stabilizing unit, and the voltage stabilizing unit outputs the stabilized power to the load and the energy storage circuit.
4. The wireless power supply system for the cooking appliance according to claim 3, wherein a diode is further connected between the voltage stabilizing unit and the energy storage circuit, an anode of the diode is connected to the output terminal of the voltage stabilizing unit, and a cathode of the diode is connected to the energy storage circuit.
5. The wireless power supply system for a cooking appliance according to claim 1, wherein the cooking appliance comprises a lid and a body, wherein the receiving means is disposed on the lid and the transmitting means is disposed on the body.
6. The wireless power supply system for the cooking appliance according to claim 2, wherein when the energy storage circuit includes an energy storage capacitor, a capacity of the energy storage capacitor is determined according to a power consumption amount of the power feedback circuit.
7. The wireless power supply system for a cooking appliance according to any one of claims 1 to 5, wherein said transmitting coil is of comparable size to said receiving coil and is coaxially arranged.
8. The wireless power supply system for the cooking appliance according to claim 6, wherein a distance between the transmitting coil and the receiving coil is 0-50 mm.
9. Cooking appliance, characterized in that it comprises a wireless power supply system for a cooking appliance according to any one of claims 1 to 8.
10. The cooking appliance of claim 9, wherein the cooking appliance is one of an electric pressure cooker or an electric rice cooker.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710834242.4A CN109510320B (en) | 2017-09-15 | 2017-09-15 | Wireless power supply system for cooking appliance and cooking appliance |
| PCT/CN2017/115480 WO2019037334A1 (en) | 2017-08-25 | 2017-12-11 | Wireless power supply system for cooking appliance, and cooking appliance |
| US16/630,699 US11478103B2 (en) | 2017-08-25 | 2017-12-11 | Wireless power supply system for cooking appliance and cooking appliance |
| CA3066024A CA3066024C (en) | 2017-08-25 | 2017-12-11 | Wireless power supply system for cooking appliance and cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710834242.4A CN109510320B (en) | 2017-09-15 | 2017-09-15 | Wireless power supply system for cooking appliance and cooking appliance |
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| Publication Number | Publication Date |
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| CN109510320A CN109510320A (en) | 2019-03-22 |
| CN109510320B true CN109510320B (en) | 2021-11-19 |
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| CN201710834242.4A Active CN109510320B (en) | 2017-08-25 | 2017-09-15 | Wireless power supply system for cooking appliance and cooking appliance |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102342178A (en) * | 2009-01-06 | 2012-02-01 | 捷通国际有限公司 | Smart cookware |
| CN206197741U (en) * | 2016-07-19 | 2017-05-31 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and its wireless control system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2858165B2 (en) * | 1990-07-05 | 1999-02-17 | 松下電器産業株式会社 | Electromagnetic cooker |
| CN202981538U (en) * | 2012-10-16 | 2013-06-12 | 广东新功电器有限公司 | Radio sensing power supply intellisense pan |
| CN104882971B (en) * | 2014-02-28 | 2017-10-27 | 广东美的生活电器制造有限公司 | Energy transmission platform, radio energy transmission system and the cooking system with it |
| CN206062877U (en) * | 2016-07-01 | 2017-04-05 | 佛山市顺德区美的电热电器制造有限公司 | A kind of interior pot power supply communication circuit, interior pot and cooking apparatus |
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2017
- 2017-09-15 CN CN201710834242.4A patent/CN109510320B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102342178A (en) * | 2009-01-06 | 2012-02-01 | 捷通国际有限公司 | Smart cookware |
| CN206197741U (en) * | 2016-07-19 | 2017-05-31 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and its wireless control system |
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