CN112535409A - Control method of steam cooking equipment - Google Patents
Control method of steam cooking equipment Download PDFInfo
- Publication number
- CN112535409A CN112535409A CN202011236085.5A CN202011236085A CN112535409A CN 112535409 A CN112535409 A CN 112535409A CN 202011236085 A CN202011236085 A CN 202011236085A CN 112535409 A CN112535409 A CN 112535409A
- Authority
- CN
- China
- Prior art keywords
- grid frequency
- current
- power grid
- timer
- time value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000010411 cooking Methods 0.000 title claims abstract description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 22
- 239000010703 silicon Substances 0.000 claims abstract description 22
- 230000003247 decreasing effect Effects 0.000 claims description 8
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000010025 steaming Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009246 food effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- 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
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
-
- 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
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
-
- 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
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
- A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a control method of steam cooking equipment, which adopts chopping control, has more stable chopping control mode and higher control precision compared with a wave loss control mode, drives silicon controlled rectifier by matching different modes according to different power grid frequencies, controls an evaporator to generate steam with more stages through the silicon controlled rectifier, and judges the power frequency of a power grid by simultaneously adopting cycle time and the number of sine waves in unit time, thereby greatly improving the accuracy of power grid frequency judgment, further automatically adapting to different power grids, being simple and feasible, effectively solving the problem of discontinuity of control steam, and achieving the steam concentration control with higher precision.
Description
Technical Field
The invention relates to the technical field of kitchen electricity, in particular to a control method of steam cooking equipment.
Background
With the increasing standard of living, many people have increasing demands for home appliances. Along with the higher and higher requirements of people on the steaming and baking integrated machine, the steaming and baking integrated machine is better, and steam is controlled to be good and precise. In the correlation technique, most steaming and baking all-in-one machine is controlled with the relay, on-off control is second level, usually, on-off control is performed for several seconds, so that the discontinuous steam control mode can be effectively solved by using the silicon controlled rectifier, the silicon controlled rectifier control is divided into a chopping control mode and a wave-losing control mode, the chopping control frequency is higher, the control periods are all millisecond levels, the control periods matched according to different power grid frequencies are respectively 10ms (the power grid frequency is 50HZ, the period is 20 ms) or 8ms (the power grid frequency is 60HZ, the period is 16 ms), so that the precision control of chopping display on steam is better, thereby the steam gears can be more to meet the requirements of users for cooking foods, and further, the better cooking effect is achieved.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore, the invention provides a control method of steam cooking equipment, which is simple and feasible and can effectively solve the problem of discontinuous control of steam, thereby achieving higher-precision steam concentration control.
The above purpose is realized by the following technical scheme:
a control method of a steam cooking apparatus, the control method of the cooking apparatus comprising the steps of:
endowing the gear information as an actual steam gear to complete the setting of the current steam gear;
the first timer carries out the increment operation;
judging whether a zero-crossing signal is detected or not, determining whether a first power grid frequency corresponding to the current period time is acquired or not according to a judgment result, and resetting the first timer;
the second timer carries out the increment operation;
comparing the time value of the second timer with a first preset time value to determine whether to clear the second timer or not and acquire a second power grid frequency corresponding to the number of sine waves in the current unit time;
comparing the first power grid frequency, the second power grid frequency and a standard power grid frequency, determining whether a time value corresponding to the current steam gear is endowed as a delayed conduction time value or not according to a comparison result, and obtaining a half-wave period corresponding to the current power grid frequency;
the silicon controlled rectifier controls the voltage of the evaporator through chopping to adjust the power of the evaporator, so that the concentration of the steam is controlled.
In some embodiments, the determining whether the zero-crossing signal is detected or not, determining whether to acquire the first grid frequency corresponding to the current cycle time according to the determination result, and resetting the first timer includes:
judging whether a zero-crossing signal is detected;
if so, performing an incremental operation by a zero-crossing frequency counter, and acquiring a first power grid frequency corresponding to the current cycle time by judging whether the time value of the first timer meets a first preset condition;
if not, the second timer carries out the increment operation.
In some embodiments, the step of obtaining the first grid frequency corresponding to the current cycle time by determining whether the time value of the first timer satisfies a first preset condition includes:
judging whether the time value of the first timer meets the first preset condition, wherein the first preset condition is that A is ≧ 10+ 8/2, A is the time value of the first timer, 10 is the working frequency half-cycle time value when the power grid power frequency is 50HZ, 8 is the working frequency half-cycle time value when the power grid power frequency is 60HZ, and 2 is a coefficient;
if so, judging that the first power grid frequency corresponding to the current cycle time is 60HZ, and then resetting the first timer;
if not, judging that the first power grid frequency corresponding to the current cycle time is 50HZ, assigning a time value corresponding to the current steam gear to a register, and then resetting the first timer;
in some embodiments, the step of comparing the time value of the second timer with a first preset time value to determine whether to clear the second timer, and acquiring the second grid frequency corresponding to the number of sine waves in the current unit time includes:
judging whether the time value of the second timer is greater than or equal to the first preset time value or not;
if so, resetting the second timer, and acquiring a second power grid frequency corresponding to the number of sine waves in the current unit time by judging whether the number of times of the zero-crossing number counter meets a second preset condition;
and if not, comparing the first power grid frequency, the second power grid frequency and the standard power grid frequency.
In some embodiments, the step of obtaining a second grid frequency corresponding to the number of sine waves in the current unit time by determining whether the number of times of the zero-crossing number counter satisfies a second preset condition includes:
judging whether the number of times of the zero-crossing number counter meets a second preset condition, wherein the second preset condition is that Ccnt is greater than or equal to (50+60)/2, wherein Ccnt is the number of times of the zero-crossing number counter, 50 is a standard power grid frequency value 50HZ, 60 is a standard power grid frequency value 60HZ, and 2 is a coefficient;
if so, judging that the first power grid frequency corresponding to the number of the sine waves in the current unit time is 60 HZ;
if not, the first grid frequency corresponding to the number of the sine waves in the current unit time is judged to be 50HZ, and a time value corresponding to the current steam gear is assigned to the register.
In some embodiments, the step of comparing the first grid frequency, the second grid frequency and a standard grid frequency, deciding whether to assign a time value corresponding to the current steam notch as a delayed on-time value according to a comparison result, and obtaining a half-wave period corresponding to the current grid frequency includes:
judging whether the first power grid frequency and the second power grid frequency are both equal to 60 HZ;
if so, judging whether the current half-wave period is equal to a first preset threshold value or not, assigning a time value corresponding to the current steam gear to the delay conduction time when the current half-wave period is equal to the first preset threshold value, judging that the current half-wave period is a second preset time value, and directly judging that the current half-wave period is the second preset time value when the current half-wave period is not equal to the first preset threshold value;
if not, judging whether the first power grid frequency and the second power grid frequency are both equal to 50 HZ.
In some embodiments, the step of determining whether the first grid frequency and the second grid frequency are both equal to 50HZ comprises:
judging whether the first power grid frequency and the second power grid frequency are both equal to 50 HZ;
if so, judging whether the current half-wave period is equal to a second preset threshold value or not, assigning a time value corresponding to the current steam gear to the delay conduction time when the current half-wave period is equal to the second preset threshold value, judging that the current half-wave period is a third preset time value, and directly judging that the current half-wave period is the third preset time value when the current half-wave period is not equal to the second preset threshold value;
if not, returning to continuously judge whether the zero-crossing signal is detected.
In some embodiments, the step of controlling the concentration of the vapor by the thyristor controlling the voltage of the evaporator by chopping to regulate the power of the evaporator comprises:
judging whether a zero-crossing signal is detected again;
if so, judging that the time value of the half-wave period timer is consistent with the half-wave period, assigning the time value corresponding to the current steam gear to the delay conduction time again, and then returning to continuously judge whether a zero-crossing signal is detected;
and if not, performing decrement operation on the half-wave period timer, and then comparing the time value of the half-wave period timer after decrement with a third preset threshold value.
In some embodiments, the step of comparing the decremented time value of the half-wave cycle timer with a third preset threshold comprises:
judging whether the time value of the decreased half-wave period timer is equal to a third preset threshold value or not;
if yes, the silicon controlled rectifier driving signal is turned off, and then the control circuit returns to continuously judge whether the zero-crossing signal is detected;
if not, the delay conduction time is subjected to decrement operation, and then the decremented delay conduction time is compared with a fourth preset threshold value.
In some embodiments, the step of comparing the decremented delay on-time to a fourth preset threshold comprises:
judging whether the decreased delay on-time is equal to a fourth preset threshold value or not;
if so, enabling the time for driving the silicon controlled signal to reach a fourth preset time value, and then returning to continuously judging whether a zero-crossing signal is detected;
if not, the time for driving the silicon controlled signal is reduced, the silicon controlled driving signal is output, and then the operation returns to continuously judge whether the zero-crossing signal is detected.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the control method of the steam cooking equipment is simple and feasible, and can effectively solve the problem of discontinuity of control steam, thereby achieving higher-precision steam concentration control.
2. The control frequency of the silicon controlled rectifier can be effectively improved, so that the cooking effect of food is further improved.
Drawings
Fig. 1 is a flowchart illustrating a control method of a steam cooking apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a thyristor driver circuit according to an embodiment of the invention;
FIG. 3 is a circuit schematic of a zero crossing detection circuit in an embodiment of the present invention;
FIG. 4 is a diagram of the relationship between the output of the zero crossing detection circuit and the grid voltage in accordance with an embodiment of the present invention;
fig. 5 is a diagram showing the relationship between the commercial power, the thyristor driving signal and the load output according to the embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of the claims of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 5, the present embodiment provides a control method of a steam cooking device, which employs chopping control, and compared with a wave-losing control mode, the chopping control mode is more stable, and the control precision is higher, silicon controlled rectifiers are driven in different modes according to different power grid frequencies, and the silicon controlled rectifiers are used to control an evaporator to generate steam concentration with more stages, and the mode of judging the power grid power frequency is judged by simultaneously employing cycle time and the number of sine waves in unit time, so that the accuracy of judging the power grid frequency is greatly improved, and further, the control method can automatically adapt to different power grids, is simple and feasible, and can effectively solve discontinuity of control steam, and thereby achieve steam concentration control with higher precision.
In this embodiment, the cooking device may be a steam box, a micro-steam box, an all-in-one steaming and baking machine, an all-in-one micro-steaming and baking machine, but is not limited to the above cooking devices, and other more suitable cooking devices may be selected according to actual requirements.
As shown in fig. 2, fig. 2 is a schematic circuit diagram of the thyristor driving circuit, in the diagram, Q7 is a triac, and other devices are part of the components in the thyristor driving circuit. As shown in fig. 3, fig. 3 is a circuit schematic diagram of a zero-crossing detection circuit, in which a pc814a chip is a bidirectional input optocoupler. As shown in fig. 4, fig. 4 is a relationship diagram between the commercial power, the thyristor driving signal and the load output, wherein the pulse signal is an inverted signal output by the bidirectional optical coupler, and the intermediate point t3 can be calculated by calculating the width from the rising edge t1 to the falling edge t2, and the t3 is a zero-crossing point.
The control method of the steam box in the embodiment specifically comprises the following steps:
and step S101, endowing the gear information as an actual steam gear to complete the setting of the current steam gear.
In this embodiment, after the steam box is powered on, the user sets a steam gear and then presses the start key to enter the next step.
In step S102, the first timer performs an increment operation.
In this embodiment, the first timer increments by 1 for an increment operation.
Step S103, judging whether a zero-crossing signal is detected, determining whether to acquire a first power grid frequency corresponding to the current period time according to a judgment result, and resetting the first timer.
In this embodiment, it is determined whether a zero-crossing signal is detected;
if so, performing an incremental operation by the zero-crossing frequency counter, and judging whether the time value of the first timer meets a first preset condition, where in this embodiment, the first preset condition is that a is ≧ (10+8)/2, where a is the time value of the first timer, 10 is the working frequency half-cycle time value when the power frequency of the power grid is 50HZ, 8 is the working frequency half-cycle time value when the power frequency of the power grid is 60HZ, and 2 is a coefficient; when a first preset condition is met, judging that the first power grid frequency corresponding to the current cycle time is 60HZ, then resetting the first timer, and entering the step S104 after the first timer is reset; when the first preset condition is not met, judging that the first power grid frequency corresponding to the current cycle time is 50HZ, assigning a time value corresponding to the current steam gear to a register, then resetting the first timer, and entering the step S104 after the first timer is reset;
if not, the process proceeds to step S104, and the second timer performs an increment operation.
In step S104, the second timer performs an increment operation.
In this embodiment, the second timer increments by 1 for an increment operation.
And step S105, comparing the time value of the second timer with a first preset time value to determine whether to clear the second timer or not, and acquiring a second power grid frequency corresponding to the number of sine waves in the current unit time.
In this embodiment, it is determined whether the time value of the second timer is greater than or equal to a first preset time value;
if so, resetting the second timer, and determining whether the number of times of the zero-crossing frequency counter meets a second preset condition, where the second preset condition is that Ccnt ≧ (50+60)/2, where Ccnt is the number of times of the zero-crossing frequency counter, 50 is a standard grid frequency value 50HZ, 60 is a standard grid frequency value 60HZ, and 2 is a coefficient; when a first preset condition is met, judging that the first power grid frequency corresponding to the number of sine waves in the current unit time is 60HZ, and then entering the step S106; when the first preset condition is not met, judging that the first power grid frequency corresponding to the number of sine waves in the current unit time is 50HZ, assigning a time value corresponding to the current steam gear to a register, and then entering the step S106;
if not, the process goes to step S106 to compare the first grid frequency, the second grid frequency and the standard grid frequency.
In this embodiment, the first preset time value is preferably 1S, but is not limited to the above time value, and other more suitable time values may be selected according to actual requirements.
And step S106, judging whether the first power grid frequency and the second power grid frequency are both equal to 60 HZ.
If yes, go to step S116, determine whether the current half-wave period is equal to the first preset threshold;
if not, step S126 is performed to determine whether the first grid frequency and the second grid frequency are both equal to 50 HZ.
Step S116, judging whether the current half-wave period is equal to a first preset threshold value or not, assigning a time value corresponding to the current steam gear to the delay conduction time when the current half-wave period is equal to the first preset threshold value, judging that the current half-wave period is a second preset time value, and then entering step S107; when the current half-wave period is not equal to the first preset threshold, the current half-wave period is directly determined to be the second preset time value, and then the step S107 is performed. In this embodiment, the first preset threshold is preferably 0, but not limited to the above value, and other more suitable values may be selected according to actual requirements, and in addition, the second preset time value is preferably 8ms, and of course, other more suitable values may also be selected according to actual requirements.
Step S126, judging whether the first power grid frequency and the second power grid frequency are both equal to 50HZ, if so, judging whether the current half-wave period is equal to a second preset threshold, and if so, assigning a time value corresponding to the current steam gear to the delay conduction time, and judging that the current half-wave period is a third preset time value, and then entering step S107; when the current half-wave period is not equal to the second preset threshold, directly judging that the current half-wave period is a third preset time value, and then entering step S107;
if not, the process returns to step S103 to continuously determine whether a zero-crossing signal is detected.
In this embodiment, the second preset threshold is preferably 0, but is not limited to the above value, and other more suitable values may be selected according to actual requirements, and in addition, the third preset time value is preferably 10ms, and of course, other more suitable values may also be selected according to actual requirements.
Step S107, judging whether a zero-crossing signal is detected again;
if so, judging that the time value of the half-wave period timer is consistent with the half-wave period, assigning the time value corresponding to the current steam gear to the delay conduction time again, and then returning to the step S103 to continuously judge whether a zero-crossing signal is detected;
if not, the process proceeds to step S109, where the half-wave cycle timer performs a decrement operation.
In this embodiment, if the zero-crossing signal is detected again, it is determined that the time value of the half-wave period timer is consistent with the half-wave period, that is, the half-wave period is 8ms if the current grid frequency is 60HZ, and the half-wave period is 10ms if the current grid frequency is 50 HZ.
Step S109, the half-wave period timer performs decrement operation, and then whether the time value of the decremented half-wave period timer is equal to a third preset threshold value is judged;
if yes, the silicon controlled rectifier driving signal is turned off, then the step S103 is returned, and whether a zero-crossing signal is detected or not is continuously judged;
if not, the process goes to step S110, and the delay conducting time is decreased.
In this embodiment, the third preset threshold is preferably 0, but is not limited to the above value, and other more suitable values may be selected according to actual requirements.
Step S110, the delay conducting time is subjected to decrement operation, and then whether the decremented delay conducting time is equal to a fourth preset threshold value is judged;
if so, enabling the time for driving the silicon controlled signal to reach a fourth preset time value, then returning to the step S103, and continuously judging whether a zero-crossing signal is detected;
if not, the time for driving the silicon controlled signal is decreased, the silicon controlled driving signal is output, and then the step S103 is returned to continuously judge whether the zero-crossing signal is detected.
In this embodiment, the fourth preset threshold is preferably 0, but not limited to the above value, and other more suitable values may be selected according to actual requirements, when the time for driving the thyristor signal is decreased to 0, the thyristor control may be exited, and the thyristor controls the voltage of the evaporator through chopping to control the power of the evaporator, so as to control the concentration of the steam, and in addition, the fourth preset time value is preferably 1ms, but of course, more suitable values may be selected according to actual requirements.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A control method of a steam cooking apparatus, characterized in that the control method of the cooking apparatus comprises the steps of:
endowing the gear information as an actual steam gear to complete the setting of the current steam gear;
the first timer carries out the increment operation;
judging whether a zero-crossing signal is detected or not, determining whether a first power grid frequency corresponding to the current period time is acquired or not according to a judgment result, and resetting the first timer;
the second timer carries out the increment operation;
comparing the time value of the second timer with a first preset time value to determine whether to clear the second timer or not and acquire a second power grid frequency corresponding to the number of sine waves in the current unit time;
comparing the first power grid frequency, the second power grid frequency and a standard power grid frequency, determining whether a time value corresponding to the current steam gear is endowed as a delayed conduction time value or not according to a comparison result, and obtaining a half-wave period corresponding to the current power grid frequency;
the silicon controlled rectifier controls the voltage of the evaporator through chopping to adjust the power of the evaporator, so that the concentration of the steam is controlled.
2. The control method of the steam cooking device as claimed in claim 1, wherein the step of judging whether the zero-crossing signal is detected or not, deciding whether the first grid frequency corresponding to the current cycle time is acquired or not according to the judgment result, and resetting the first timer comprises the steps of:
judging whether a zero-crossing signal is detected;
if so, performing an incremental operation by a zero-crossing frequency counter, and acquiring a first power grid frequency corresponding to the current cycle time by judging whether the time value of the first timer meets a first preset condition;
if not, the second timer carries out the increment operation.
3. The control method of the steam cooking apparatus according to claim 2, wherein the step of obtaining the first grid frequency corresponding to the current cycle time by determining whether the time value of the first timer satisfies a first preset condition comprises:
judging whether the time value of the first timer meets the first preset condition, wherein the first preset condition is that A is ≧ 10+ 8/2, A is the time value of the first timer, 10 is the working frequency half-cycle time value when the power grid power frequency is 50HZ, 8 is the working frequency half-cycle time value when the power grid power frequency is 60HZ, and 2 is a coefficient;
if so, judging that the first power grid frequency corresponding to the current cycle time is 60HZ, and then resetting the first timer;
if not, judging that the first power grid frequency corresponding to the current cycle time is 50HZ, assigning a time value corresponding to the current steam gear to a register, and then resetting the first timer.
4. The method as claimed in claim 2, wherein the step of comparing the time value of the second timer with a first preset time value to determine whether to clear the second timer, and acquiring the second grid frequency corresponding to the number of sine waves in the current unit time comprises:
judging whether the time value of the second timer is greater than or equal to the first preset time value or not;
if so, resetting the second timer, and acquiring a second power grid frequency corresponding to the number of sine waves in the current unit time by judging whether the number of times of the zero-crossing number counter meets a second preset condition;
and if not, comparing the first power grid frequency, the second power grid frequency and the standard power grid frequency.
5. The control method of a steam cooking apparatus according to claim 4, wherein the step of obtaining the second grid frequency corresponding to the number of sine waves in the current unit time by judging whether the number of times of the zero-crossing number counter satisfies the second preset condition comprises:
judging whether the number of times of the zero-crossing number counter meets a second preset condition, wherein the second preset condition is that Ccnt is greater than or equal to (50+60)/2, wherein Ccnt is the number of times of the zero-crossing number counter, 50 is a standard power grid frequency value 50HZ, 60 is a standard power grid frequency value 60HZ, and 2 is a coefficient;
if so, judging that the first power grid frequency corresponding to the number of the sine waves in the current unit time is 60 HZ;
if not, the first grid frequency corresponding to the number of the sine waves in the current unit time is judged to be 50HZ, and a time value corresponding to the current steam gear is assigned to the register.
6. The method of claim 1, wherein the step of comparing the first grid frequency, the second grid frequency and a standard grid frequency to determine whether to assign the time value corresponding to the current steam gear as the delayed on-time value according to the comparison result and obtaining the half-wave period corresponding to the current grid frequency comprises:
judging whether the first power grid frequency and the second power grid frequency are both equal to 60 HZ;
if so, judging whether the current half-wave period is equal to a first preset threshold value or not, assigning a time value corresponding to the current steam gear to the delay conduction time when the current half-wave period is equal to the first preset threshold value, judging that the current half-wave period is a second preset time value, and directly judging that the current half-wave period is the second preset time value when the current half-wave period is not equal to the first preset threshold value;
if not, judging whether the first power grid frequency and the second power grid frequency are both equal to 50 HZ.
7. The control method of the steam cooking device as claimed in claim 6, wherein the step of determining whether the first grid frequency and the second grid frequency are both equal to 50HZ comprises:
judging whether the first power grid frequency and the second power grid frequency are both equal to 50 HZ;
if so, judging whether the current half-wave period is equal to a second preset threshold value or not, assigning a time value corresponding to the current steam gear to the delay conduction time when the current half-wave period is equal to the second preset threshold value, judging that the current half-wave period is a third preset time value, and directly judging that the current half-wave period is the third preset time value when the current half-wave period is not equal to the second preset threshold value;
if not, returning to continuously judge whether the zero-crossing signal is detected.
8. The control method of the steam cooking apparatus as claimed in claim 7, wherein the silicon controlled rectifier controls the voltage of the evaporator by chopping to adjust the power of the evaporator, thereby controlling the concentration of the steam comprising:
judging whether a zero-crossing signal is detected again;
if so, judging that the time value of the half-wave period timer is consistent with the half-wave period, assigning the time value corresponding to the current steam gear to the delay conduction time again, and then returning to continuously judge whether a zero-crossing signal is detected;
and if not, performing decrement operation on the half-wave period timer, and then comparing the time value of the half-wave period timer after decrement with a third preset threshold value.
9. The control method of a steam cooking apparatus as claimed in claim 8, wherein the step of comparing the decremented time value of the half-wave period timer with a third preset threshold value comprises:
judging whether the time value of the decreased half-wave period timer is equal to a third preset threshold value or not;
if yes, the silicon controlled rectifier driving signal is turned off, and then the control circuit returns to continuously judge whether the zero-crossing signal is detected;
if not, the delay conduction time is subjected to decrement operation, and then the decremented delay conduction time is compared with a fourth preset threshold value.
10. The method of claim 9, wherein the step of comparing the decreased delay on-time with a fourth preset threshold comprises:
judging whether the decreased delay on-time is equal to a fourth preset threshold value or not;
if so, enabling the time for driving the silicon controlled signal to reach a fourth preset time value, and then returning to continuously judging whether a zero-crossing signal is detected;
if not, the time for driving the silicon controlled signal is reduced, the silicon controlled driving signal is output, and then the operation returns to continuously judge whether the zero-crossing signal is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011236085.5A CN112535409A (en) | 2020-11-09 | 2020-11-09 | Control method of steam cooking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011236085.5A CN112535409A (en) | 2020-11-09 | 2020-11-09 | Control method of steam cooking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112535409A true CN112535409A (en) | 2021-03-23 |
Family
ID=75013964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011236085.5A Pending CN112535409A (en) | 2020-11-09 | 2020-11-09 | Control method of steam cooking equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112535409A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741233A (en) * | 2021-07-21 | 2021-12-03 | 三门康创电子科技有限公司 | Control circuit of steaming and baking machine, steaming and baking machine and control method of steaming and baking machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0656174A1 (en) * | 1993-12-04 | 1995-06-07 | AEG Hausgeräte GmbH | Baking and roasting oven with a cooking chamber and a steam generator for the cooking chamber |
| CN2625424Y (en) * | 2003-04-08 | 2004-07-14 | 朱湛培 | Standing steam ironing machine with power regulation |
| CN103892698A (en) * | 2014-03-28 | 2014-07-02 | 广东美的厨房电器制造有限公司 | Control method, control device and steam cooking device |
| CN105528007A (en) * | 2015-12-22 | 2016-04-27 | 珠海格力电器股份有限公司 | Power control device and method of disinfection cabinet and disinfection cabinet |
| CN106490964A (en) * | 2016-12-30 | 2017-03-15 | 广东美的厨房电器制造有限公司 | The control method of electric cooking pot, device and electric cooking pot |
| CN106788004A (en) * | 2016-11-29 | 2017-05-31 | 杭州九阳小家电有限公司 | A kind of cooking equipment starts the mains supply adaptive approach of control |
| CN108170042A (en) * | 2018-01-09 | 2018-06-15 | 厦门芯阳科技股份有限公司 | A kind of Garment Steamer Machine steam amount control circuit and control method |
| CN109085870A (en) * | 2018-08-23 | 2018-12-25 | 杭州老板电器股份有限公司 | Control method, device and the intelligent appliance of intelligent appliance |
| CN109907649A (en) * | 2019-04-23 | 2019-06-21 | 小熊电器股份有限公司 | Electric steamer |
| CN109976410A (en) * | 2018-12-03 | 2019-07-05 | 广东美的厨房电器制造有限公司 | Temprature control method and Temperature-controlled appliance for cooking equipment |
| CN211321597U (en) * | 2019-12-31 | 2020-08-21 | 珠海雷特科技股份有限公司 | Chopping constant-voltage controller for power grid |
-
2020
- 2020-11-09 CN CN202011236085.5A patent/CN112535409A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0656174A1 (en) * | 1993-12-04 | 1995-06-07 | AEG Hausgeräte GmbH | Baking and roasting oven with a cooking chamber and a steam generator for the cooking chamber |
| CN2625424Y (en) * | 2003-04-08 | 2004-07-14 | 朱湛培 | Standing steam ironing machine with power regulation |
| CN103892698A (en) * | 2014-03-28 | 2014-07-02 | 广东美的厨房电器制造有限公司 | Control method, control device and steam cooking device |
| CN105528007A (en) * | 2015-12-22 | 2016-04-27 | 珠海格力电器股份有限公司 | Power control device and method of disinfection cabinet and disinfection cabinet |
| CN106788004A (en) * | 2016-11-29 | 2017-05-31 | 杭州九阳小家电有限公司 | A kind of cooking equipment starts the mains supply adaptive approach of control |
| CN106490964A (en) * | 2016-12-30 | 2017-03-15 | 广东美的厨房电器制造有限公司 | The control method of electric cooking pot, device and electric cooking pot |
| CN108170042A (en) * | 2018-01-09 | 2018-06-15 | 厦门芯阳科技股份有限公司 | A kind of Garment Steamer Machine steam amount control circuit and control method |
| CN109085870A (en) * | 2018-08-23 | 2018-12-25 | 杭州老板电器股份有限公司 | Control method, device and the intelligent appliance of intelligent appliance |
| CN109976410A (en) * | 2018-12-03 | 2019-07-05 | 广东美的厨房电器制造有限公司 | Temprature control method and Temperature-controlled appliance for cooking equipment |
| CN109907649A (en) * | 2019-04-23 | 2019-06-21 | 小熊电器股份有限公司 | Electric steamer |
| CN211321597U (en) * | 2019-12-31 | 2020-08-21 | 珠海雷特科技股份有限公司 | Chopping constant-voltage controller for power grid |
Non-Patent Citations (2)
| Title |
|---|
| 樊月珍等: "双向可控硅过零调功调速的技术实现方法", 《中国农业大学学报》 * |
| 颜景龙等: "可控硅电加热器控制方法研究", 《测试技术学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741233A (en) * | 2021-07-21 | 2021-12-03 | 三门康创电子科技有限公司 | Control circuit of steaming and baking machine, steaming and baking machine and control method of steaming and baking machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107302809B (en) | Electromagnetic heating cooking system and heating control device and control method thereof | |
| US11064573B2 (en) | Determining resonant frequency for quasi-resonant induction cooking devices | |
| CN109936883B (en) | Heating control method, heating control device, heating appliance and computer-readable storage medium | |
| CN112535409A (en) | Control method of steam cooking equipment | |
| CN108513381B (en) | Electromagnetic heating device and power control method | |
| CN106788004A (en) | A kind of cooking equipment starts the mains supply adaptive approach of control | |
| CN108141922B (en) | Induction heating method and system | |
| EP3038431A1 (en) | Circuit for driving cooker, system for driving cooker, cooker, and method for driving cooker | |
| CN111387812A (en) | Anti-overflow method and device without anti-overflow electrode | |
| CN111728482B (en) | Self-adaptive anti-overflow control method and device | |
| CN113795062A (en) | Electromagnetic heating control method and device and electromagnetic heating equipment | |
| CN102612186B (en) | Heating device as well as control system and method of quasi-resonant mode inverter of heating device | |
| CN210053343U (en) | Drive control circuit and household electrical appliance | |
| CN108307552B (en) | Device and method for reducing electromagnetic noise and cooking utensil | |
| JPWO2013094109A1 (en) | Induction heating device | |
| CN208337449U (en) | Food processor motor drive circuit and food processor comprising same | |
| CN205726492U (en) | A kind of Electromagnetic Heating soft start structure | |
| CN111246611B (en) | Electromagnetic heating cooking utensil | |
| CN109392206B (en) | Heating control method, heating control device and cooking appliance | |
| CN112713885B (en) | Driving method and driving device of silicon controlled rectifier and heating appliance | |
| CN111397764B (en) | Boiling detection method and device | |
| CN110972344B (en) | Electromagnetic heating circuit, electromagnetic heating appliance and protection method of electromagnetic heating circuit | |
| CN110376946A (en) | Control method, electric appliance and the computer readable storage medium of electric appliance output power | |
| CN111830854A (en) | Embedded remote intelligent electric cooker | |
| KR20200100473A (en) | Cooker improving operation stability and operating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210323 |