CN110801145A - Control method and system of cooking device and cooking device - Google Patents
Control method and system of cooking device and cooking device Download PDFInfo
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- CN110801145A CN110801145A CN201810885890.7A CN201810885890A CN110801145A CN 110801145 A CN110801145 A CN 110801145A CN 201810885890 A CN201810885890 A CN 201810885890A CN 110801145 A CN110801145 A CN 110801145A
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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
- A47J27/004—Cooking-vessels with integral electrical heating means
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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
- A47J27/0802—Control mechanisms for pressure-cookers
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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
- A47J36/00—Parts, details or accessories of cooking-vessels
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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
- A47J2201/00—Devices having a modular construction
Abstract
The invention discloses a cooking device and a control method and system thereof. The control method of the cooking device comprises the following steps: gradually reducing the resonant frequency of the resonant module from an interval upper limit value to an interval lower limit value in a preset frequency detection interval; detecting a real-time voltage of the resonance module; determining the optimal resonant working frequency of the ultrasonic vibrator according to the real-time voltage; and performing ultrasonic cooking at the optimal resonance working frequency. The control method of the cooking device can enable the ultrasonic vibrator to be in the optimal working state, and improves the working efficiency of the ultrasonic vibrator. And, look for the best resonance operating frequency in the detection interval of relatively less frequency to produce loud noise when avoiding looking for the best resonance operating frequency, have the advantage that the noise is relatively less when looking for the best resonance operating frequency, effectively reduced the influence of noise to the user.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a cooking device and a control method and system thereof.
Background
For cooking devices adopting ultrasonic cooking technology, such as electric cookers, electric pressure cookers and other cooking appliances with cooking cavities inside, an ultrasonic heating device comprising ultrasonic vibrators has low working efficiency because of processing and assembly deviation, the inherent vibration frequency of each vibrator can have deviation, the inherent vibration frequency can have deviation from a fixed frequency, the ultrasonic heating device does not work in an optimal state, and the optimal working frequency needs to be found by changing the working frequency of the ultrasonic vibrators.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
To this end, a first object of the present invention is to propose a control method of a cooking apparatus. The method can enable the ultrasonic vibrator to be in the best working state and improve the working efficiency of the ultrasonic vibrator. And, look for the best resonance operating frequency in the detection interval of the relatively minor frequency, thus avoid producing the loud noise while looking for the best resonance operating frequency, have the advantage that the noise is relatively minor while looking for the best resonance operating frequency.
A second object of the present invention is to provide a control system for a cooking apparatus.
A third object of the present invention is to provide a cooking apparatus.
In order to achieve the above object, an embodiment of a first aspect of the present invention discloses a method for controlling a cooking apparatus, the cooking apparatus including an inverter module, a resonance module connected to the inverter module, a driving module for driving the inverter module, a control module for controlling the driving module, and a sampling circuit, the method including: gradually adjusting the resonant frequency of the resonant module within a preset frequency detection interval by a preset frequency variation; detecting a real-time voltage of the resonance module; determining the optimal resonant working frequency of the ultrasonic vibrator according to the real-time voltage; and performing ultrasonic cooking at the optimal resonance working frequency.
According to the control method of the cooking device, the optimal vibration frequency of the ultrasonic vibrator can be simply, conveniently and accurately detected, frequency deviation influenced by processing, process, assembly, material abnormity and the like is reduced, the ultrasonic vibrator can be in the optimal working state, and the working efficiency of the ultrasonic vibrator is improved. And, look for the best resonance operating frequency in the detection interval of relatively less frequency to produce loud noise when avoiding looking for the best resonance operating frequency, have the advantage that the noise is relatively less when looking for the best resonance operating frequency, effectively reduced the influence of noise to the user.
In some examples, the gradually adjusting the resonant frequency of the resonant module by a preset frequency change amount in a preset frequency detection interval includes: and gradually reducing the resonant frequency of the resonant module from the interval upper limit value to the interval lower limit value of the frequency detection interval.
In some examples, the gradually adjusting the resonant frequency of the resonant module by a preset frequency change amount in a preset frequency detection interval includes: and gradually increasing the resonant frequency of the resonant module from the lower limit value of the interval to the upper limit value of the interval.
In some examples, the gradually adjusting the resonant frequency of the resonant module by a preset frequency change amount in a preset frequency detection interval includes: gradually increasing the resonant frequency of the resonant module from the middle value of the preset frequency detection interval to the interval upper limit value; and gradually reducing the resonant frequency of the resonant module from the middle value of the interval to the lower limit value of the interval.
An embodiment of a second aspect of the present invention discloses a control system of a cooking apparatus, including: the contravariant module, with the resonance module that the contravariant module links to each other for the drive module of drive the contravariant module, the system includes: the control module is used for gradually adjusting the resonant frequency of the resonant module within a preset frequency detection interval by a preset frequency variation, determining the optimal resonant working frequency of the ultrasonic vibrator according to the real-time voltage, and controlling the cooking device to perform ultrasonic cooking by the optimal resonant working frequency; and the sampling circuit is connected with the control module and used for detecting the real-time voltage of the resonance module and feeding back the real-time voltage to the control module.
According to the control system of the cooking device, the optimal vibration frequency of the ultrasonic vibrator can be simply, conveniently and accurately detected, frequency deviation influenced by processing, process, assembly, material abnormity and the like is reduced, the ultrasonic vibrator can be in the optimal working state, and the working efficiency of the ultrasonic vibrator is improved. And, look for the best resonance operating frequency in the detection interval of relatively less frequency to produce loud noise when avoiding looking for the best resonance operating frequency, have the advantage that the noise is relatively less when looking for the best resonance operating frequency, effectively reduced the influence of noise to the user.
In some examples, the control module is configured to gradually decrease the resonant frequency of the resonance module from an upper interval limit value to a lower interval limit value of the frequency detection interval.
In some examples, the control module is configured to gradually increase the resonant frequency of the resonant module from the lower interval limit to the upper interval limit.
In some examples, the control module is configured to gradually increase the resonant frequency of the resonant module from a middle value of the preset frequency detection interval to the interval upper limit value, and gradually decrease the resonant frequency of the resonant module from the middle value of the interval to the interval lower limit value.
A third aspect of the present invention discloses a cooking apparatus, comprising: the control system of the cooking device according to the embodiment of the second aspect described above. The cooking device can enable the ultrasonic vibrator to be in the best working state, and the working efficiency of the ultrasonic vibrator is improved. And, look for the best resonance operating frequency in the detection interval of relatively less frequency to produce loud noise when avoiding looking for the best resonance operating frequency, have the advantage that the noise is relatively less when looking for the best resonance operating frequency, effectively reduced the influence of noise to the user.
Wherein, the cooking device comprises an electric cooker and an electric pressure cooker.
Drawings
Fig. 1 is a flowchart of a control method of a cooking apparatus according to an embodiment of the present invention;
fig. 2 is a block diagram of a control system of a cooking apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a control system of a cooking appliance according to one embodiment of the present invention;
fig. 4 is a detection diagram of a control method of a cooking apparatus according to an embodiment of the present invention;
fig. 5 is a detection diagram of a control method of a cooking apparatus according to another embodiment of the present invention.
Description of reference numerals:
the ultrasonic transducer comprises a power supply 10, a filtering module 20, a rectifying module 30, an inverting module 40, a resonance module 50, a sampling circuit 60, a control module 70, a driving module 80 and an ultrasonic vibrator 90.
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.
A method and a system for controlling a cooking apparatus and a cooking apparatus according to embodiments of the present invention will be described with reference to the accompanying drawings.
First, referring to fig. 2 in conjunction with fig. 3, the cooking apparatus includes a power supply 10, a filter module 20, a rectifier module 30, an inverter module 40, a resonance module 50, a sampling circuit 60, a control module 70, a driving module 80, and an ultrasonic vibrator 90.
The power supply 10 is connected to an ac power supply, such as a household commercial power, and is filtered by the filtering module 20, the rectifying module 30 is configured to rectify the ac power supply into a dc power, the dc power is inverted into a high-frequency power supply by the inverting module 40, and the inverted high-frequency power supply and the T2 form a resonance, where the resonance frequency is the same as the frequency of the high-frequency power supply of the inverting power supply. In a specific example, T2 is a high frequency transformer, its secondary winding and rectifier diode, capacitor, resistor, etc. form a sampling circuit 60, the sampling circuit 60 is connected to the control module 70, and the sampling circuit 60 is used to detect the voltage of the resonant module 50, so that the amplitude of the whole resonant circuit can be indirectly known.
As shown in fig. 1, a method for controlling a cooking apparatus according to an embodiment of the present invention includes the steps of:
s101: and gradually adjusting the resonant frequency of the resonant module from the interval upper limit value to the interval lower limit value by a preset frequency variation in a preset frequency detection interval. Namely: the frequency reduction is controlled to find the optimum resonant operating frequency of the ultrasonic vibrator.
First, a preset frequency detection interval may be predetermined, for example: and acquiring the inherent vibration frequency of the ultrasonic vibrator in the resonance module, and determining a frequency detection interval according to the inherent vibration frequency.
Specifically, the ultrasonic transducer has a natural frequency F, but the natural frequency is usually varied due to processing, process, assembly, material abnormality, and the like, and therefore, a frequency range in which the natural frequency F ± △ F is located may be used as the frequency detection interval, where F + △ F is an upper limit value of the interval, F- △ F is a lower limit value of the interval, and F is an intermediate value.
In this step, the resonant frequency of the resonant module can be gradually decreased from the upper limit value to the lower limit value of the frequency detection interval, i.e. the control frequency gradually decreases from F + △ F to F- △ F, so as to find the optimal resonant operating frequency of the ultrasonic vibrator.
In this example, △ F refers to the value of the frequency deviation affected by machining, process, assembly, material anomalies, etc., which may be determined empirically or experimentally.
In a specific example, the resonant frequency of the resonant module may be gradually decreased by a preset frequency change amount, where the preset frequency change amount may be calibrated in advance.
Referring to fig. 4, the time T1 < T2 < T3 < T4 < T5 corresponds to the optimum resonant operating frequency of the ultrasonic transducer in this example, T4. Wherein the abscissa is time and the ordinate is voltage.
S102: the real-time voltage of the resonant module is detected.
Namely: in the process of adjusting the resonant frequency of the resonant module in a preset frequency detection interval, the real-time voltage of the resonant module can be acquired through the sampling circuit.
S103: and determining the optimal resonant working frequency of the ultrasonic vibrator according to the real-time voltage.
For example: and acquiring the peak voltage in the real-time voltage, and taking the resonance frequency corresponding to the peak voltage as the optimal resonance working frequency of the ultrasonic vibrator.
Specifically, the control module controls the resonance frequency of the resonance module to change within F + - △ F, and when the voltage fed back by the resonance circuit is detected to be the maximum value within the frequency range of F + - △ F, the control module calculates the resonance frequency F0 corresponding to the maximum value of the voltage, and then F0 is the optimal vibration frequency of the ultrasonic vibrator, namely the optimal resonance working frequency.
S104: ultrasonic cooking is performed at the optimum resonant operating frequency.
In other examples of the present invention, for step S101, the resonant frequency of the resonant module may be gradually increased from the interval lower limit value to the interval upper limit value, so as to detect a real-time voltage of the resonant module in the process, determine an optimal resonant operating frequency of the ultrasonic vibrator according to the real-time voltage, and perform ultrasonic cooking at the optimal resonant operating frequency.
That is, the optimum resonance operating frequency of the ultrasonic transducer is detected in the opposite direction to the above-described embodiment.
For example, as shown in fig. 5, the control frequency gradually increases from F- △ F to F + △ F to find the optimal resonant frequency, and the time T1 > T2 > T3 > T4 > T5, wherein the time T4 corresponds to the optimal resonant operating frequency of the ultrasonic vibrator, the abscissa is time, and the ordinate is voltage.
Of course, in other examples of the present invention, for step S101, the resonant frequency of the resonant module may be gradually increased from the middle value of the preset frequency detection interval to the interval upper limit value, so as to find the optimal resonant operating frequency of the ultrasonic vibrator between the middle value of the interval and the interval upper limit value; and gradually reducing the resonance frequency of the resonance module from the middle value of the interval to the lower limit value of the interval so as to search the optimal resonance working frequency of the ultrasonic vibrator between the middle value of the interval and the lower limit value of the interval.
Namely: the optimum resonant operating frequency of the ultrasonic vibrator is determined by gradually detecting from the intermediate value to the high frequency and then detecting from the intermediate value to the low frequency.
For example, the control frequency is increased from F to F + △ F to find the optimum resonance frequency, and then decreased to F- △ F to find the optimum resonance working frequency of the ultrasonic vibrator.
According to the control method of the cooking device, the optimal vibration frequency of the ultrasonic vibrator can be simply, conveniently and accurately detected, frequency deviation influenced by processing, process, assembly, material abnormity and the like is reduced, the ultrasonic vibrator can be in the optimal working state, and the working efficiency of the ultrasonic vibrator is improved. And, look for the best resonance operating frequency in the detection interval of relatively less frequency to produce loud noise when avoiding looking for the best resonance operating frequency, have the advantage that the noise is relatively less when looking for the best resonance operating frequency, effectively reduced the influence of noise to the user.
It will be appreciated that the cooking device described above may be a variety of cooking devices including those employing ultrasonic cooking techniques, such as: electric rice cookers, electric pressure cookers, and the like.
Fig. 2 is a block diagram of a control system of a cooking apparatus according to an embodiment of the present invention. As shown in fig. 2 in conjunction with fig. 3, a control system of a cooking apparatus includes: the ultrasonic transducer comprises a power supply 10, a filtering module 20, a rectifying module 30, an inverting module 40, a resonance module 50, a sampling circuit 60, a control module 70, a driving module 80 and an ultrasonic vibrator 90.
The power supply 10 is connected to an ac power supply, such as a household commercial power, and is filtered by the filtering module 20, the rectifying module 30 is configured to rectify the ac power supply into a dc power, the dc power is inverted into a high-frequency power supply by the inverting module 40, and the inverted high-frequency power supply and the T2 form a resonance, where the resonance frequency is the same as the frequency of the high-frequency power supply of the inverting power supply. In a specific example, T2 is a high frequency transformer, its secondary winding and rectifier diode, capacitor, resistor, etc. form a sampling circuit 60, the sampling circuit 60 is connected to the control module 70, and the sampling circuit 60 is used to detect the voltage of the resonant module 50, so that the amplitude of the whole resonant circuit can be indirectly known.
The control module 70 is configured to gradually adjust the resonant frequency of the resonant module by a preset frequency variation within a preset frequency detection interval, determine the optimal resonant operating frequency of the ultrasonic vibrator according to the real-time voltage, and control the cooking device to perform ultrasonic cooking by using the optimal resonant operating frequency. The sampling circuit 60 is used for detecting the real-time voltage of the resonance module and feeding back the real-time voltage to the control module.
In an embodiment of the present invention, the control module 70 is configured to gradually decrease the resonant frequency of the resonant module from an upper interval limit value to a lower interval limit value of the frequency detection interval.
In an embodiment of the present invention, the control module 70 is further configured to gradually increase the resonant frequency of the resonant module from the interval lower limit value to the interval upper limit value, so as to determine an optimal resonant operating frequency of the ultrasonic vibrator according to the real-time voltage of the resonant module detected by the sampling circuit, and perform ultrasonic cooking at the optimal resonant operating frequency.
In an embodiment of the present invention, the control module 70 is further configured to gradually increase the resonant frequency of the resonant module from the middle value of the preset frequency detection interval to the interval upper limit value, so as to search for the optimal resonant operating frequency of the ultrasonic vibrator between the middle value of the interval and the interval upper limit value, and gradually decrease the resonant frequency of the resonant module from the middle value of the interval to the interval lower limit value, so as to search for the optimal resonant operating frequency of the ultrasonic vibrator between the middle value of the interval and the interval lower limit value.
According to the control system of the cooking device, the optimal vibration frequency of the ultrasonic vibrator can be simply, conveniently and accurately detected, frequency deviation influenced by processing, process, assembly, material abnormity and the like is reduced, the ultrasonic vibrator can be in the optimal working state, and the working efficiency of the ultrasonic vibrator is improved. And, look for the best resonance operating frequency in the detection interval of relatively less frequency to produce loud noise when avoiding looking for the best resonance operating frequency, have the advantage that the noise is relatively less when looking for the best resonance operating frequency, effectively reduced the influence of noise to the user.
It should be noted that the specific implementation manner of the control system of the cooking device in the embodiment of the present invention is similar to the specific implementation manner of the control method of the cooking device in the embodiment of the present invention, and please refer to the description of the method part specifically, and no further description is given for reducing redundancy.
Further, an embodiment of the present invention discloses a cooking apparatus, including: the control system of the cooking device according to the above embodiments. In specific examples, cooking devices include, but are not limited to, electric cookers and electric pressure cookers. The cooking device can enable the ultrasonic vibrator to be in the best working state, and the working efficiency of the ultrasonic vibrator is improved. And, look for the best resonance operating frequency in the detection interval of relatively less frequency to produce loud noise when avoiding looking for the best resonance operating frequency, have the advantage that the noise is relatively less when looking for the best resonance operating frequency, effectively reduced the influence of noise to the user.
In addition, other configurations and functions of the cooking apparatus according to the embodiment of the present invention are known to those skilled in the art, and are not described herein in detail in order to reduce redundancy.
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. 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.
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 method for controlling a cooking apparatus, the cooking apparatus including an inverter module, a resonance module connected to the inverter module, a driving module for driving the inverter module, a control module for controlling the driving module, and a sampling circuit, the method comprising:
gradually adjusting the resonant frequency of the resonant module within a preset frequency detection interval by a preset frequency variation;
detecting a real-time voltage of the resonance module;
determining the optimal resonant working frequency of the ultrasonic vibrator according to the real-time voltage;
and performing ultrasonic cooking at the optimal resonance working frequency.
2. The control method of a cooking apparatus according to claim 1,
gradually adjusting the resonant frequency of the resonant module within a preset frequency detection interval by a preset frequency variation, including: and gradually reducing the resonant frequency of the resonant module from the interval upper limit value to the interval lower limit value of the frequency detection interval.
3. The method for controlling a cooking apparatus according to claim 1, wherein the gradually adjusting the resonant frequency of the resonant module by a preset frequency change amount in a preset frequency detection interval comprises:
and gradually increasing the resonant frequency of the resonant module from the lower limit value of the interval to the upper limit value of the interval.
4. The method for controlling a cooking apparatus according to claim 1, wherein the gradually adjusting the resonant frequency of the resonant module by a preset frequency change amount in a preset frequency detection interval comprises:
gradually increasing the resonant frequency of the resonant module from the middle value of the preset frequency detection interval to the interval upper limit value; and
and gradually reducing the resonant frequency of the resonant module from the middle value of the interval to the lower limit value of the interval.
5. A control system for a cooking device, comprising: the contravariant module, with the resonance module that the contravariant module links to each other for the drive module of drive the contravariant module, the system includes:
the control module is used for gradually adjusting the resonant frequency of the resonant module within a preset frequency detection interval by a preset frequency variation, determining the optimal resonant working frequency of the ultrasonic vibrator according to the real-time voltage, and controlling the cooking device to perform ultrasonic cooking by the optimal resonant working frequency;
and the sampling circuit is connected with the control module and used for detecting the real-time voltage of the resonance module and feeding back the real-time voltage to the control module.
6. The control system of the cooking apparatus according to claim 5, wherein the control module is configured to gradually decrease the resonant frequency of the resonant module from an upper interval limit value to a lower interval limit value of the frequency detection interval.
7. The control system of claim 5, wherein the control module is further configured to gradually increase the resonant frequency of the resonant module from the lower interval limit to the upper interval limit.
8. The control system of the cooking apparatus according to claim 5, wherein the control module is further configured to gradually increase the resonant frequency of the resonant module from a middle value of the preset frequency detection interval to the interval upper limit value, and gradually decrease the resonant frequency of the resonant module from the middle value of the interval to the interval lower limit value.
9. A cooking device, comprising: the control system of the cooking apparatus according to any one of claims 5 to 8.
10. The cooking device of claim 9, wherein the cooking device comprises an electric rice cooker and an electric pressure cooker.
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| US11627834B2 (en) | 2017-08-09 | 2023-04-18 | Sharkninja Operating Llc | Cooking system for cooking food |
| US11751710B2 (en) | 2019-02-25 | 2023-09-12 | Sharkninja Operating Llc | Guard for cooking system |
| US11134808B2 (en) | 2020-03-30 | 2021-10-05 | Sharkninja Operating Llc | Cooking device and components thereof |
| US11647861B2 (en) | 2020-03-30 | 2023-05-16 | Sharkninja Operating Llc | Cooking device and components thereof |
| US11678765B2 (en) | 2020-03-30 | 2023-06-20 | Sharkninja Operating Llc | Cooking device and components thereof |
| CN112910109A (en) * | 2021-01-20 | 2021-06-04 | 宁波方太厨具有限公司 | Working method of passive sensing system and system applying method |
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