CN111789479B

CN111789479B - Cooking appliance and control method for cooking appliance

Info

Publication number: CN111789479B
Application number: CN201910282129.9A
Authority: CN
Inventors: 樊杜平; 陈建化; 曹凯
Original assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2022-11-25
Anticipated expiration: 2039-04-09
Also published as: CN111789479A

Abstract

The invention discloses a cooking appliance and a control method for the same. The cooking utensil comprises a cooker body, a cover body and a control device. An inner pot is arranged in the cooker body. The cover body can be arranged above the cooker body in a covering manner, and a cooking space is formed between the cover body and the inner pot when the cover body covers the cooker body. The control device has a real-time timing function and a common timing function, wherein the control device is powered by the timing power supply to realize the real-time timing function, and the control device is configured to be capable of detecting the voltage of the timing power supply and selecting one of the real-time timing function and the common timing function to perform timing according to the detection result. According to the cooking appliance and the control method for the cooking appliance, the control device can detect the voltage of the timing power supply and select one of the real-time timing function and the common timing function to time according to the detection result, so that timing confusion caused by undervoltage or non-installation of the timing power supply can be avoided, and the influence on the cooking function is avoided.

Description

Cooking appliance and control method for cooking appliance

Technical Field

The invention relates to the field of electric heating appliances, in particular to a cooking appliance and a control method for the cooking appliance.

Background

Some existing electric cooking appliances, such as electric cookers and electric pressure cookers, are provided with batteries for supplying power for a long time. Therefore, the electric cooking appliance can accurately run for Beijing time when the electric cooking appliance is plugged with commercial power or not. Therefore, the user does not need to calculate the appointment time when using the appointment function of the electric cooking appliance, and the electric cooking appliance is convenient to use. However, when the battery is used for a long time and the voltage is reduced, the function of the cooking appliance for running the beijing time cannot be supported, the timing is easily disordered, the normal use of the electric cooking appliance is influenced, and great troubles are brought to the user.

Therefore, there is a need to provide a cooking appliance and a control method for a cooking appliance to at least partially solve the above-mentioned problems.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description section. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to at least partially solve the above-mentioned problems, according to an aspect of the present invention, there is provided a cooking appliance including:

a pot body;

the inner pot is arranged in the pot body;

the cover body is arranged above the cooker body in a covering manner, and when the cover body covers the cooker body, a cooking space is formed between the cover body and the inner pot; and

the control device has a real-time timing function and a common timing function, wherein the control device is powered by a timing power supply to realize the real-time timing function, and the control device is configured to be capable of detecting the voltage of the timing power supply and selecting one of the real-time timing function and the common timing function to perform timing according to the detection result.

According to the cooking appliance, the control device can detect the voltage of the timing power supply and select one of the real-time timing function and the common timing function to time according to the detection result, so that timing disorder caused by undervoltage or no installation of the timing power supply can be avoided, and the influence on the cooking function is avoided.

Optionally, when the detection result is greater than or equal to a predetermined voltage, the control device selects a real-time timing function to time; and when the detection result is smaller than the preset voltage, the control device selects a common timing function to time. Therefore, the electric quantity of the timing power supply can be accurately judged by taking the preset voltage as a standard.

Optionally, the predetermined voltage is greater than or equal to 2.2V and less than or equal to 3V. Therefore, the preset voltage is suitable for judging the electric quantity of various timing power supplies.

Optionally, the cooking appliance further comprises a prompting device, the prompting device is electrically connected with the control device, and when the detection result is smaller than the predetermined voltage, the control device controls the prompting device to send out prompting information. Therefore, the user can be prompted when the electric quantity is insufficient.

Optionally, the control means detects the voltage of the timing power supply through an analog/digital converter. Therefore, the detection result is reliable by the detection method.

Optionally, the control device executes the real-time timing function by taking beijing time as a reference; and/or the timing manner of the ordinary timing function comprises countdown. Therefore, the cooking utensil is suitable for being used in areas timed by Beijing time, and the countdown is not limited by actual time, thereby being convenient and practical.

Optionally, the cooking appliance further comprises a display device electrically connected with the control device, and the display device can display information timed by the control device. Thereby, the user can acquire the timing information through the display device.

Optionally, the control device performs an appointment cooking function based on the real-time timing function or the general timing function. Thereby, the function of the reserved cooking can be executed according to the selected timing function.

According to another aspect of the present invention, there is also provided a control method for the cooking appliance as described above, the method including:

the control device detects the voltage of the timing power supply and selects one of the real-time timing function and the ordinary timing function to time according to the detection result.

According to the control method, the control device can detect the voltage of the timing power supply and select one of the real-time timing function and the common timing function to time according to the detection result, so that timing disorder caused by undervoltage or non-installation of the timing power supply can be avoided, and the influence on the cooking function is avoided.

Optionally, when the detection result is greater than or equal to a predetermined voltage, the control device selects a real-time timing function; when the detection result is smaller than the predetermined voltage, the control device selects a normal timing function. Therefore, the electric quantity of the timing power supply can be accurately judged by taking the preset voltage as a standard.

Optionally, when the detection result is smaller than the predetermined voltage, a prompting device sends a prompting message. Therefore, the user can be prompted when the electric quantity is insufficient.

Alternatively, the control means performs the reserved cooking function based on a real-time timing function or a general timing function. Thereby, the function of the reserved cooking can be executed according to the selected timer function.

Drawings

The following drawings of embodiments of the invention are included as part of the present application for an understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a schematic view of a cooking appliance according to a preferred embodiment of the present invention;

fig. 2 is a control schematic diagram of a cooking appliance according to a preferred embodiment of the present invention;

FIG. 3 is a schematic diagram of a circuit for detecting the voltage of a timing power supply; and

fig. 4 is a flowchart illustrating a control method for a cooking appliance according to a preferred embodiment of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to obscure the embodiments of the invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

According to a preferred embodiment of the present invention, there are provided a cooking appliance and a control method for the same.

The cooking utensil can be an electric cooker, an electric pressure cooker, an electric stewpan and the like.

As shown in fig. 1, the cooking appliance 100 according to the present invention includes a cover 120 and a pot body 110. The pot body 110 is substantially in a rounded rectangular parallelepiped shape and has a cylindrical inner pot receiving portion into or from which the inner pot 111 can be freely put or taken out to facilitate cleaning of the inner pot 111. The upper surface of the inner pot 111 has a circular opening for containing a material to be heated, such as rice, soup, etc., therein. The bottom of the inner pan 111 is typically also provided with heating means 180 for heating the inner pan. It is understood that the cooking appliance 100 according to the present invention may cook other miscellaneous grain rice such as bean rice, in addition to rice. The cooking appliance 100 will be described in detail below, taking rice cooking as an example.

The cover 120 has a substantially rounded rectangular parallelepiped shape and substantially corresponds to the shape of the pot body 110. The lid body 120 is pivotally connected to the pot body 110 in an openable and closable manner for covering the pot body 110 and constituting a cooking space between the inner pot 111 and the lid body 120.

As shown in fig. 2, the cooking appliance 100 further includes a control device 130. The control device 130 includes a main control chip, which may be electrically connected to functional elements of the cooking appliance 100, such as the heating device 180, and send signals to control the functional elements to perform corresponding operations. According to the present invention, a Real-Time Clock (RTC) module is disposed in the main control chip, so that the control device 130 can implement a Real-Time timing function.

It can be understood that the main control chip needs to consume electric energy when executing the real-time timing function. As shown in fig. 2, the cooking appliance 100 includes a timing power source 140 for supplying power to the control device 130. In one embodiment, the timing power source 140 may be a battery disposed on the cooking appliance 100. In addition, the cooking appliance 100 is also connected with a main power supply 150 for supplying power to the cooking appliance 100 for performing a cooking function. Wherein the main power supply 150 may be mains power. The control device 130 may also implement a timing function when it is powered solely by the main power supply 150. However, since the cooking appliance 100 does not maintain a continuously connected state with the main power supply 150, the control device 130 cannot time in real time when only the main power supply 150 supplies power, and thus it is inconvenient to adopt a real-time timing function. The normal timing function may be selected at this time. The timing manner of the ordinary timing function may include a countdown or other timing manner that is not limited by actual time.

Preferably, the real-time timing function of the control device 130 can be synchronized with Beijing time. However, the timing of the control device 130 can also be synchronized with the times of other time zones, if desired.

In addition, the cooking appliance 100 further includes a prompt device 160 and a display device 170. The display device 170 may be a display screen for displaying information, or the like. The prompting device 160 is used for sending out prompting information for prompting the user. For example, the prompting device 160 can be a diode, a speaker, a buzzer, and/or the like. Accordingly, the prompt may be light and/or sound. In addition, the display device 170 may also function as a presentation device, that is, it has both display and presentation functions. For example, the display device 170 may display the prompt information by text.

Since the control device 130 has a timing function, the user can conveniently make cooking reservation through the control device 130. To avoid that the timing power source 140, such as a battery, affects the timing function of the control device 130 due to a reduced power level. According to the present invention, the control device 130 is configured to be able to detect the voltage of the timing power source 140 and select one of the real-time timing function or the ordinary timing function for timing according to the detection result.

Fig. 3 shows a circuit schematic of the control device 130 measuring the voltage of the timing power supply 140. Wherein D1, D2, D3, D4 and D5 are diodes, and C1, C2 and C3 are filter capacitors. The positive electrode of the timing power source 140 is connected to the positive electrode of the diode D3, and the negative electrode of D3 is connected to the detection interface 131 of the main control chip of the control device 130. The detection interface 131 is an analog/digital converter in the main control chip. By detecting the AD value of the analog/digital converter, the main control chip converts the AD value into a corresponding voltage value, and thereby detects the voltage value of the timer power supply 140. The primary function of the D1, D2, D3 diodes is to isolate and prevent the +5V power supply and the timing power supply 140 from interacting. AVREF is the power supply for the detection interface 131 and VDD is the power supply for the main control chip. The voltage of the timing power supply 140 is below 5V. When the main power 150 is connected to the cooking appliance 100, +5V supplies power to VDD of the main control chip through the diode D1, and +5V supplies power to the detection interface 131 in the main control chip through the diodes D4 and D5. When the main power 150 is not connected to the cooking appliance 100, the power 140 supplies power to VDD of the main control chip through the diode D2.

The control method will be described in detail with reference to the flowchart shown in fig. 4.

First, when the cooking appliance 100 turns on the main power 150, the control device 130 first detects the voltage of the timing power 140 and compares the detection result with a predetermined voltage. If the detection result is greater than or equal to the predetermined voltage, it indicates that the timing power source 140 has sufficient power, which can support the control device 130 to perform the real-time timing function. Thus, the control device 130 can select the real-time timer function to perform timing. If the detected result is less than the predetermined voltage, it indicates that the timing power 140 is under-voltage, the power is insufficient, or the timing power 140 is not mounted to the cooking appliance 100. Thus, the control device 130 can perform only a normal timing function, for example, a countdown manner, with the power supply of the main power supply 150. Preferably, when the detection result of the control device 130 is less than the predetermined voltage, it may control the prompting device 160 to issue the prompting message. Therefore, the user is reminded that the timing power supply 140 is insufficient in electric quantity and is replaced in time.

It will be appreciated that the voltage of a power source such as a battery is typically less than 3.8V. The predetermined voltage V1 for measuring the power of the timing power source 140 may have a value range of: v1 is more than or equal to 2.2V and less than or equal to 3.0V. For example, V1 may take the value 2.2V, 2.5V, 2.7V or 3V. Thus, the degree of the electric power in the timer power supply 140 can be accurately determined.

After the control device 130 selects a certain timing function, the user can perform cooking reservation according to the timing function selected by the control device 130. Preferably, the control device 130 may display the currently selected time keeping function thereof through the display device 170.

Specifically, if the control apparatus 130 selects the real-time timer function, the control apparatus 130 can keep the timing synchronized in real time with a time such as beijing time regardless of the state (standby state, set state, whether or not on with the main power supply 150, and the like). If the user sets a cooking function with a reserved time at a time point of the beijing time t1, the reserved time t1 displayed on the display device 170 refers to a time at which the reserved cooking function starts or completes.

For example: the current Beijing time of the electric cooking appliance is 13 o ' clock 45 minutes, the user selects the cooking function, and selects the reservation time to be 18 o ' clock 00 minutes, which means that the cooking function (cooking) is finished at the moment of 18 o ' clock 00 of the Beijing time. Under the Beijing time mode, a user can directly select the time point of 18 points and 00 minutes of the Beijing time when using the reservation function without calculating the reservation time, so that the reservation function is more convenient for the user to use, and the use experience is improved.

On the other hand, if the control device 130 selects the ordinary time counting function, the display device 170 cannot display the time point of the beijing time, which is displayed as a time period after a certain time point has elapsed. If the customer sets the reserved time t2, the reserved time t2 displayed on the display device 170 refers to a time period required for reserving the completion of the cooking function, that is: and the reserved cooking function is just finished after the time t2 is up.

For example: the user selects the cooking function, the current Beijing time is 13 hours and 45 minutes, the user wants to finish cooking at 18 hours and 00 minutes in the Beijing time, the user needs to calculate at the moment, the required reservation time is 4 hours and 15 minutes after calculation, and then the user sets the reservation time to be 4 hours and 15 minutes. The control means 130 counts time by a general timing function (e.g., countdown) and controls the cooking function (cooking) to be completed after 4 hours and 15 minutes.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. It will be appreciated by those skilled in the art that many variations and modifications may be made to the teachings of the invention, which fall within the scope of the invention as claimed.

Claims

1. A cooking appliance (100), characterized in that the cooking appliance (100) comprises:

a pot body (110);

an inner pot (111) disposed in the pot body (110);

the cover body (120) is arranged above the pot body (110) in a covering mode, and when the cover body (120) covers the pot body (110), a cooking space is formed between the cover body (120) and the inner pot (111); and

the control device (130) is provided with a real-time timing function and a common timing function, wherein the control device (130) is powered by a timing power supply (140) to realize the real-time timing function, and the control device (130) is configured to be capable of detecting the voltage of the timing power supply (140) and selecting one of the real-time timing function and the common timing function to perform timing according to the detection result.

2. The cooking appliance (100) according to claim 1, wherein the control means (130) selects a real-time timing function for timing when the detection result is greater than or equal to a predetermined voltage; when the detection result is smaller than the predetermined voltage, the control device (130) selects a normal timing function for timing.

3. The cooking appliance (100) according to claim 2, wherein the predetermined voltage is greater than or equal to 2.2V and less than or equal to 3V.

4. The cooking appliance (100) according to claim 2, wherein the cooking appliance (100) further comprises a prompting device (160), the prompting device (160) is electrically connected with the control device (130), and when the detection result is less than the predetermined voltage, the control device (130) controls the prompting device (160) to give out a prompting message.

5. The cooking appliance (100) according to claim 1, wherein the control device (130) detects the voltage of the timing power source (140) through an analog/digital converter.

6. The cooking appliance (100) according to claim 1, wherein the control device (130) performs the real-time timing function with respect to Beijing time; and/or the timing of the normal timing function comprises a countdown.

7. The cooking appliance (100) according to claim 1, wherein the cooking appliance (100) further comprises a display device (170) electrically connected to the control device (130), the display device (170) being capable of displaying information on the timing of the control device (130).

8. The cooking appliance (100) according to claim 1, wherein the control means (130) performs a scheduled cooking function based on the real-time timing function or the general timing function.

9. A control method for a cooking appliance (100) according to claim 1, characterized in that the method comprises:

the control device (130) detects the voltage of the timing power supply (140), and selects one of the real-time timing function and the ordinary timing function to perform timing according to the detection result.

10. The control method according to claim 9, wherein the control device (130) selects a real-time timing function when the detection result is greater than or equal to a predetermined voltage; when the detection result is less than the predetermined voltage, the control device (130) selects a normal timer function.

11. The control method according to claim 10, characterized in that when the detection result is less than the predetermined voltage, a prompt device (160) issues a prompt message.

12. The control method according to claim 9, wherein the control device (130) performs the reserved cooking function based on a real-time timer function or a general timer function.