CN110960106B - Electric oven control system and method and electric oven - Google Patents
Electric oven control system and method and electric oven Download PDFInfo
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- CN110960106B CN110960106B CN201811140511.8A CN201811140511A CN110960106B CN 110960106 B CN110960106 B CN 110960106B CN 201811140511 A CN201811140511 A CN 201811140511A CN 110960106 B CN110960106 B CN 110960106B
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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
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
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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
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
- A47J37/0641—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements with forced air circulation, e.g. air fryers
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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
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0658—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity specially adapted for cooking pizza
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- Food Science & Technology (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The embodiment of the invention provides an electric oven control system and method and an electric oven, which can reduce the electric energy consumption of the electric oven. The system comprises: a temperature sensor for detecting a current temperature within the heating cavity; and the controller is used for determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the detected current temperature and the expected temperature in the heating cavity, and circularly controlling the heating tube to work and stop working according to the ratio of the working time to the stopping time so as to maintain the temperature in the heating cavity to be close to the expected temperature.
Description
Technical Field
The invention relates to the field of household appliances, in particular to an electric oven control system, an electric oven control method and an electric oven comprising the electric oven control system.
Background
The electric oven is a kitchen appliance for baking food by using the radiant heat emitted by an electric heating element. The electric oven can be used for processing certain wheaten foods, such as bread and pizza, can also be used for making snacks such as egg tarts and cookies, and can also be used for cooking meat.
Fig. 1a is a schematic structural view of a conventional electric oven. As shown in fig. 1a, the conventional electric oven includes a cavity 1 for containing a heated object to be cooked, heating pipes (such as a rear heating pipe, an upper heating pipe 3, and a lower heating pipe 4), devices for promoting thermal circulation (such as a hot air motor 5 and a hot air hood 5), a cold air motor, a temperature sensor 7 for detecting a temperature inside the cavity 1, and a controller for controlling the heating pipes and the devices for promoting thermal circulation according to the temperature inside the cavity detected by the temperature sensor 7 and in combination with a corresponding control instruction input by a user.
Fig. 1b is a schematic diagram illustrating the operation of a conventional electric oven. The current hot air convection working mode of the electric oven is as shown in fig. 1b, in the first stage (preheating), the rear heating tube 2 and the hot air motor 5 work simultaneously, and when the temperature sensor 7 and the feedback controller 8 reach the set temperature, the program enters the second stage; in the second stage, the controller 8 controls the on/off of the rear heating tube 2 according to the temperature of the cavity 1 fed back by the temperature sensor 7, so that the temperature of the furnace core is stabilized in a set temperature area. In the second stage, the hot air motor 5 and the cooling motor 9 are operated all the time.
Fig. 1c is a schematic diagram of the change of temperature in the cavity of the conventional electric oven with time. As shown in fig. 1c, the temperature in the cavity of the conventional electric oven can fluctuate within a range of X1-X2, and the fluctuation range is large. This greater float range results in more power being consumed by the electric oven at the same set temperature.
The electric oven is the electric energy consumed in the cooking process of the oven, and is one of important indexes concerned by users when purchasing oven products. The existing oven product optimizes materials and structures of heat insulation materials and the like for reducing the electric energy consumed by the oven, but the feasibility of changing the product is greatly limited along with the problems of high part cost, difficult production and assembly and the like. How to reduce the power consumption of an electric oven while achieving a better cooking effect is a problem to be solved in the field.
Disclosure of Invention
An object of an embodiment of the present invention is to provide an electric oven control system, an electric oven control method and an electric oven including the same, which can reduce electric energy consumption of the electric oven.
In order to achieve the above object, an embodiment of the present invention provides a control system for an electric oven, the control system for an electric oven including a heating cavity and a heating tube located in the heating cavity, the control system comprising: a temperature sensor for detecting a current temperature within the heating cavity; and the controller is used for determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the detected current temperature and the expected temperature in the heating cavity, and circularly controlling the heating tube to work and stop working according to the ratio of the working time to the stopping time so as to maintain the temperature in the heating cavity to be close to the expected temperature.
Optionally, the electric oven further includes a fan for circulating heat in the heating cavity, and the controller is further configured to control the fan to operate during operation and stop of the heating tube.
Optionally, the controller is further configured to perform the following operations: judging whether the electric oven needs to work in a non-linkage working mode or not according to the expected temperature; and under the condition that the electric oven is determined to be required to work in a non-linkage working mode, determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the detected temperature in the heating cavity and the expected temperature, circularly controlling the heating tube to work and stop working according to the ratio of the working time to the stopping time, and controlling the fan to run during the working and stopping of the heating tube so as to maintain the temperature in the heating cavity to be close to the expected temperature.
Optionally, when the desired temperature is within a central temperature range, the electric oven is controlled to be in the non-linked operating mode.
Optionally, the heating tube is a rear heating tube of the electric oven.
Optionally, the fan is a hot air fan of the electric oven, which is located near the rear heating tube.
Correspondingly, an embodiment of the present invention further provides a method for controlling an electric oven, where the electric oven includes a heating cavity and a heating tube located in the heating cavity, and the method includes: receiving a current temperature and a desired temperature within the heating cavity; determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the current temperature and the expected temperature in the heating cavity; and circularly controlling the heating tube to work and stop working according to the ratio of the working time to the stopping time so as to maintain the temperature in the heating cavity to be close to the expected temperature.
Optionally, the electric oven further comprises a fan for circulating heat in the heating cavity, and the method further comprises: and controlling the fan to operate during the working and the stopping of the heating tube.
Optionally, the method further includes: and judging whether the electric oven needs to work in a non-linkage working mode or not according to the expected temperature, determining the ratio of the working time to the stopping time of the heating pipe in a unit control period according to the detected temperature in the heating cavity and the expected temperature under the condition that the electric oven needs to work in the non-linkage working mode, circularly controlling the heating pipe to work and stop working according to the ratio of the working time to the stopping time, and controlling the fan to run during the working and stopping of the heating pipe so as to maintain the temperature in the heating cavity to be close to the expected temperature.
Optionally, when the desired temperature is within a central temperature range, the electric oven is controlled to be in the non-linked operating mode.
Optionally, the heating tube is a rear heating tube of the electric oven.
Optionally, the fan is a hot air fan of the electric oven, which is located near the rear heating tube.
According to another aspect of the present invention, an embodiment of the present invention further provides an electric oven comprising the above-mentioned electric oven control system.
According to another aspect of the present invention, there is also provided a machine-readable storage medium having stored thereon instructions for causing a machine to execute the above-described electric oven control method.
By the technical scheme, the electric energy consumed by the electric oven can be reduced only by a control logic method under the condition that any structure and parts of the electric oven are not changed. The heating pipe arranged in the heating cavity can be controlled to heat through the on-off time mode, so that the floating range X of the central temperature in the heating cavity is reduced, and the electric energy consumed by the oven is reduced.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1a is a schematic structural view of a conventional electric oven;
FIG. 1b is a schematic diagram of a conventional electric oven;
FIG. 1c is a schematic diagram of the temperature inside the cavity of the prior art electric oven as a function of time;
fig. 2 is a schematic structural diagram of a control system of an electric oven according to an embodiment of the present invention;
FIG. 3a is a flowchart illustrating a control system of an electric oven according to an embodiment of the present invention;
FIG. 3b is a schematic diagram of the operation of a control system of an electric oven according to an embodiment of the present invention;
FIG. 4a is a flowchart illustrating the operation of a control system of an electric oven according to another embodiment of the present invention;
FIG. 4b is a schematic diagram illustrating the operation of a control system of an electric oven according to another embodiment of the present invention;
FIG. 4c is a schematic view showing the heat cycle inside the electric oven;
FIG. 5a is a schematic diagram illustrating an operation of a control system of an electric oven according to another embodiment of the present invention;
FIG. 5b is a schematic diagram of the operation of a control system of an electric oven according to another embodiment of the present invention at a desired temperature of K1-K2 ℃; and
fig. 5c is a schematic diagram of the operation of the control system of the electric oven according to another embodiment of the present invention at the expected temperatures Min-K1 ℃ and K2-Max ℃.
Description of the reference numerals
1 cavity 2 rear heating tube
3 upper heating tube 4 lower heating tube
5 hot air motor 6 hot air cover
7 temperature sensor 8 controller
9 Cooling fan
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 2 is a schematic structural diagram of an electric oven control system according to an embodiment of the present invention, and fig. 3a is a flowchart illustrating a work process of the electric oven control system according to an embodiment of the present invention. As shown in fig. 2 and 3a, an embodiment of the present invention provides a control system for an electric oven, where the electric oven includes a heating cavity and a heating tube located in the heating cavity, and the system includes: a temperature sensor 7 for detecting the current temperature in the heating cavity; and the controller 8 is used for determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the detected current temperature in the heating cavity and the expected temperature, and circularly controlling the heating tube to work and stop working according to the ratio of the working time to the stopping time so as to maintain the temperature in the heating cavity to be close to the expected temperature.
The desired temperature may be calculated by the controller according to instructions input by the user, for example, the user may directly select a heating gear of the electric oven, the user may select a type of object to be heated, etc., and the controller may calculate the temperature to be heated according to the instructions. The "set temperature" appearing hereinafter and in the drawings is the "desired temperature".
By the scheme, the electric energy consumed by the electric oven can be reduced only by a control logic method under the condition of not changing any structure and parts. The heating pipe arranged in the heating cavity can be controlled to heat through the on-off time mode, so that the floating range X of the central temperature in the heating cavity is reduced, and the electric energy consumed by the oven is reduced. Compared with the fixed on-time of the heating tube in the prior art, the ratio of the working time to the stop time of the heating tube in the scheme of the invention is variable, for example, the ratio of the working time to the stop time of the heating tube can be reduced under the condition that the temperature in the heating cavity is closer to the expected temperature. This allows the center temperature in the heating cavity in the solution of the present invention to be closer to the desired temperature, reducing the temperature floating range and reducing the power consumed by the oven. The scheme not only enables the floating range X to be controllable and adjustable, but also can compress the floating range to approach 0 which is difficult to achieve at present.
Fig. 3b is a schematic diagram of an electric oven control system according to an embodiment of the present invention. As shown in fig. 3b, the controller can divide the on-off time of the heating tube into T1 seconds and T2 seconds, and the controller controls the action of the heating tube until the end of the work through the time rule of working for T1 seconds/off for T2 seconds. The time of T1 and T2 varies according to different overall structures and different temperature gears, and the time proportion of the on-off time of the heating tube T1 to the time proportion of the on-off time of the heating tube T2 enables the central temperature to be in a balanced state without being too high or too low.
The power consumption calculation formula of the scheme provided by this embodiment is as follows:
W＝P*T
P＝P1+P2
T＝T1+T2
W＝P1*T1+P2*T2
wherein, W is the electric energy consumed by the electric oven, P is the power of the electric oven, T is the total working time of the heating tube, P1 is the working power of the heating tube, P2 is the off-time power of the heating tube, T1 is the working time of the heating tube, and T2 is the off-time of the heating tube.
The heating tube in the above scheme may refer to a heating element in an electric oven or any combination thereof, such as any one of the rear heating tube, the upper heating tube 3, and the lower heating tube 4 shown in fig. 1a or any combination thereof. During the period of controlling the heating tube, the fan which can make the heat in the heating cavity circulate is always kept on, the hot air motor can drive the fan to rotate, and therefore the generated air can be blown out to the cavity 1 through the hot air cover 6, and the heat in the cavity 1 can circulate.
Preferably, the heating tube controlled in the above scheme is a rear heating tube of the electric oven, and the fan is a hot air fan of the electric oven located near the rear heating tube. Experiments show that the efficiency of the heating mode is the highest, and the scheme can effectively reduce the electric energy consumption of the electric oven by 20 percent.
Fig. 4a is a flowchart illustrating the operation of a control system of an electric oven according to another embodiment of the present invention, and fig. 4b is a schematic diagram illustrating the operation of the control system of the electric oven according to another embodiment of the present invention. As shown in fig. 4a, another embodiment of the present invention provides an electric oven control system, which is an electric oven control system, wherein the electric oven includes a heating cavity, a heating tube located in the heating cavity, and a fan for circulating heat in the heating cavity, and the electric oven control system includes: a temperature sensor for detecting a current temperature within the heating cavity; and the controller is used for determining the ratio of the working time to the stopping time of the heating pipe in a unit control period according to the detected current temperature and the expected temperature in the heating cavity, and circularly controlling the heating pipe and the fan to synchronously work and synchronously stop working according to the ratio of the working time to the stopping time so as to maintain the temperature in the heating cavity to be close to the expected temperature.
The difference from the embodiment shown in fig. 3a and 3b is that the controller of this embodiment not only controls the heating of the rear heating tube arranged in the cavity in a time on-off manner, but also the heating tube and the fan are in linkage operation, i.e. synchronous operation/synchronous stop. When the heating tube does not work, the fan stops working in sequence to stop the circulation of heat in the cavity (fig. 4c shows a schematic diagram of heat circulation in the electric oven), and the heat preservation performance and the electric energy consumption of the heat in a static state are lower than the electric energy consumption of the heat in a heat circulation state, so that when the heating tube does not work, the fan stops working together to ensure that the heat preservation time of the temperature in the cavity is longer, and the purpose of further reducing the heat consumption is achieved.
As shown in fig. 4b, the scheme of the present embodiment can be divided into two stages, a first stage (i.e., a preheating stage) and a second stage (i.e., an operating stage).
The heating pipe and the fan are in linkage work, namely synchronous work or synchronous stop. The on-off time of the heating tube is divided into T1 seconds and T2 seconds by the controller, and the heating tube and the fan are controlled by the controller through a time rule of working for T1 seconds/cutting off for T2 seconds until the work is finished. The time of T1 and T2 varies according to different overall structures and different temperature gears, and the time proportion of the on-off time of the heating tube T1 to the time proportion of the on-off time of the heating tube T2 enables the central temperature to be in a balanced state without being too high or too low.
The power consumption calculation formula of the scheme provided by this embodiment is as follows:
W＝P*T
P＝P1+P2
T＝T1+T2
W＝P1*T1+P2*T2
wherein, W is the electric energy consumed by the electric oven, P is the power of the electric oven, T is the total working time of the heating tube, P1 is the working power of the heating tube, P2 is the off-time power of the heating tube, T1 is the working time of the heating tube, and T2 is the off-time of the heating tube.
The heating tube in the above scheme may refer to a heating element in an electric oven or any combination thereof, such as any one of the rear heating tube, the upper heating tube 3, and the lower heating tube 4 shown in fig. 1a or any combination thereof. During the period of controlling the heating tube, the fan for circulating heat in the heating cavity can synchronously work and stop along with the work and stop of the heating tube. At the heating tube workplace, the fan can make the heat that the heating tube produced circulate in the cavity, and when the heating tube during out-of-work, the fan also can stop working, and heat endless loop in this moment cavity, heat insulating ability and electric energy consumption under quiescent condition are less than the electric energy consumption under the thermal cycle state, and consequently the fan is static when the back heating tube is out of work together and can make temperature heat preservation time in the cavity more of a specified duration, electric energy consumption can be reduced to lower under the same time.
Preferably, the heating tube controlled in the above scheme is a rear heating tube of the electric oven, and the fan is a hot air fan of the electric oven located near the rear heating tube. Experiments show that the efficiency of the heating mode is the highest, and the scheme can effectively reduce the electric energy consumption of the electric oven by 38 percent.
Fig. 5a is a schematic diagram of a control system of an electric oven according to another embodiment of the present invention. As shown in fig. 5a, another embodiment of the present invention provides a control system for an electric oven, the electric oven including a heating cavity, a heat generating pipe located in the heating cavity, and a fan for circulating heat in the heating cavity, the system comprising: a temperature sensor for detecting a current temperature within the heating cavity; and a controller for determining that the electric oven is in one of the following operating modes according to a desired temperature: the non-linkage working mode comprises the following steps: determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the detected temperature in the heating cavity and the expected temperature, circularly controlling the heating tube to work and stop according to the ratio of the working time to the stopping time, and controlling the fan to operate during the working and stopping of the heating tube so as to maintain the temperature in the heating cavity to be close to the expected temperature; and a linkage working mode: according to the detected temperature in the heating cavity and the expected temperature, determining the ratio of the working time to the stopping time of the heating tube in a unit control period, and according to the ratio of the working time to the stopping time, cyclically controlling the heating tube and the fan to synchronously work and synchronously stop working so as to maintain the temperature in the heating cavity to be close to the expected temperature.
According to the temperature range of food cooked by the electric oven, the range of K1-K2 ℃ (K1-K2 ℃, such as 150-. Because the thermal cycle in the oven has a crucial influence on the uniformity and cooking effect of the noodle cooking items of the oven, the present embodiment is divided into two types according to the thermal cycle, the first type is the temperature range K1-K2 ℃ that needs thermal cycle cooking during the period when the heating tube does not work, the second type is the temperature ranges Min-K1 ℃ and K2-Max that do not need thermal cycle cooking during the period when the heating tube does not work, and the control modes are different according to the different temperature ranges, namely the non-linkage working mode and the linkage working mode.
Specifically, the controller may control the electric oven to be in the non-linked operation mode when the desired temperature is within a central temperature range (e.g., K1-K2 ℃); controlling the electric oven to be in the linkage working mode when the expected temperature is between zero and the lower limit of the central temperature range (for example, Min-K1 ℃); or when the expected temperature is between the upper limit of the central temperature range and infinity (for example, K2-Max ℃), controlling the electric oven to be in the linkage working mode.
Fig. 5b is a schematic diagram illustrating the operation of the control system of the electric oven according to another embodiment of the present invention at a desired temperature ranging from K1 to K2 ℃. As shown in fig. 5b, the controller divides the on-off time of the heating tube into T1 seconds and T2 seconds, and controls the heating tube to operate until the operation is finished through the time rule of operating T1 seconds/off T2 seconds, the time of T1 and T2 is changed according to different overall structures and different temperature gears, and the time ratio of the on-off time of the heating tube T1 to the time of T2 enables the central temperature to be in a balanced state without being too high or too low. In the process, the fan for heat circulation in the heating cavity can be controlled to be always in an open state, so that the problem that the cooking effect of cooking in the oven is poor due to the fact that the heat circulation in the cavity is staggered with the heat circulation stopping is avoided.
Fig. 5c is a schematic diagram of the operation of the control system of the electric oven according to another embodiment of the present invention at the expected temperatures Min-K1 ℃ and K2-Max ℃. As shown in fig. 5c, the controller divides the on-off time of the heating tube into T1 seconds and T2 seconds, and controls the heating tube to operate until the operation is finished through the time rule of operating T1 seconds/off T2 seconds, the time of T1 and T2 is changed according to different overall structures and different temperature gears, and the time ratio of the on-off time of the heating tube T1 to the time of T2 enables the central temperature to be in a balanced state without being too high or too low. During the working period of the scheme, the heating tube and the fan work in a linkage mode, namely, the heating tube and the fan work synchronously or stop synchronously. When the heating tube works, the fan also works; when the heating tube is out of work, the fan also stops working in succession, so that heat in the cavity stops circulating, the heat preservation performance and the electric energy consumption of the heat in a static state are lower than the electric energy consumption of the heat in a thermal circulation state, therefore, when the heating tube is out of work, the fan stops working together, so that the temperature preservation time in the cavity is longer, and the purpose of further reducing the heat consumption is achieved.
In the schemes shown in fig. 5a to 5c, in order to consider the actual cooking effect of the oven and reduce the consumption of electric energy, the desired temperature is divided into two temperature ranges of K1-K2 ℃, 0-K1 ℃ and K2-Max ℃ according to the requirement of the cavity thermal cycle.
The temperature range of K1-K2 ℃ is controlled by the on-off of time T1/T2 to maximally reduce the temperature floating range X, so that the cooking effect of flour is ensured, and the electric energy consumption is reduced.
When the expected temperature is in the temperature range of 0-K1 ℃ or K2-Max ℃, when the heating tube and the fan do not work, the heat in the cavity stops circulating, the heat preservation performance and the electric energy consumption of the heat in a static state are lower than the electric energy consumption of the heat in a thermal circulation state, therefore, when the heating tube does not work, the heating tube and the fan are static together, the temperature preservation time in the cavity is longer, and the electric energy consumption can be reduced to be lower in the same time.
Preferably, the heating tube controlled in the above scheme is a rear heating tube of the electric oven, and the fan is a hot air fan of the electric oven located near the rear heating tube. Experiments show that the efficiency of the heating mode is the highest, and the scheme can effectively reduce the electric energy consumption by 32 percent and ensure the high-quality cooking effect of the oven.
The controller 8 may be a general purpose processor, a special purpose processor, a conventional processor, a Digital Signal Processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) Circuit, any other type of Integrated Circuit (IC), a state machine, and so forth.
The invention is a method for reducing the electric energy consumption of the electric oven only by a logic control method under the condition of not changing any whole structure and parts, the scheme not only can lead a user to consume less electric energy in the process of using a product so as to improve the product competitiveness, but also can avoid uncertain risk items caused by cost rise, difficult structure assembly after change and the like due to newly opening parts.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (8)
1. The utility model provides an electric oven control system, the electric oven contains heating cavity and is located the heating tube in this heating cavity, its characterized in that, this system includes:
a temperature sensor for detecting a current temperature within the heating cavity; and
a controller for determining the ratio of the on-time to the off-time of the heating tube in a unit control period according to the detected current temperature and the expected temperature in the heating cavity, and controlling the heating tube to operate and stop according to the ratio of the on-time to the off-time in a circulating manner so as to maintain the temperature in the heating cavity near the expected temperature,
the electric oven further comprises a fan for circulating heat in the heating cavity,
the controller is also used for controlling the electric oven to be in an uncoupled working mode when the expected temperature is within a central temperature range, determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the detected temperature in the heating cavity and the expected temperature in the uncoupled working mode, circularly controlling the heating tube to work and stop working according to the ratio of the working time to the stopping time, and controlling the fan to run during the working and stopping of the heating tube so as to maintain the temperature in the heating cavity to be close to the expected temperature,
wherein the central temperature range is a temperature range suitable for a dough cooking item of the oven.
2. The electric oven control system of claim 1, wherein the heat pipe is a rear heat pipe of the electric oven.
3. The electric oven control system of claim 2 wherein the air mover is a hot air mover of the electric oven located proximate the rear heat pipe.
4. A control method of an electric oven comprises a heating cavity and a heating tube positioned in the heating cavity, and is characterized by comprising the following steps:
receiving a current temperature and a desired temperature within the heating cavity;
determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the current temperature and the expected temperature in the heating cavity; and
according to the ratio of the working time to the stopping time, the heating tube is controlled to work and stop working circularly so as to maintain the temperature in the heating cavity to be close to the expected temperature,
the electric oven further comprises a fan for circulating heat in the heating cavity,
the method further comprises the following steps: when the expected temperature is within a central temperature range, controlling the electric oven to be in an uncoupled working mode, in the uncoupled working mode, determining the ratio of the working time to the stopping time of the heating tube in a unit control period according to the detected temperature in the heating cavity and the expected temperature, circularly controlling the heating tube to work and stop working according to the ratio of the working time to the stopping time, and controlling the fan to operate during the working and stopping of the heating tube so as to maintain the temperature in the heating cavity to be close to the expected temperature,
wherein the central temperature range is a temperature range suitable for a dough cooking item of the oven.
5. The method of controlling an electric oven according to claim 4, wherein the heat pipe is a rear heat pipe of the electric oven.
6. The method of controlling an electric oven according to claim 5, wherein the fan is a hot air fan of the electric oven located near the rear heat pipe.
7. An electric oven comprising an electric oven control system according to any of claims 1 to 3.
8. A machine-readable storage medium having stored thereon instructions for causing a machine to perform the electric oven control method of any one of the preceding claims 4-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811140511.8A CN110960106B (en) | 2018-09-28 | 2018-09-28 | Electric oven control system and method and electric oven |
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