Control drive device, control method, electronic cooking appliance and storage medium

Abstract

This application provides a control drive device, a control method, an electronic cooking appliance, and a storage medium, belonging to the field of electronic technology. The control drive device includes a power supply circuit, a drive circuit, and a control circuit. The power supply circuit includes a high-voltage output terminal, a first low-voltage output terminal, and a second low-voltage output terminal for supplying power to the drive circuit. The drive circuit includes at least two parallel drive branches, each drive branch including a reed switch and a magnetron. The reed switch is connected between the high-voltage output terminal of the power supply circuit and the high-voltage input terminal of the magnetron. The high-voltage input terminal of the magnetron is connected to the first low-voltage output terminal of the power supply circuit, and the low-voltage input terminal of the magnetron is connected to the second low-voltage output terminal of the power supply circuit. The reed switch controls the on / off state of the drive branch. The control circuit controls the on / off state of the reed switch. This control drive device can save costs for electronic cooking appliances.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a control drive device, a control method, an electronic cooking appliance and a storage medium. Background Art

[0002] With the development of electronic technology, magnetrons that can convert electrical energy into microwave energy have been widely used in various electrical appliances. For example, microwave ovens are used to heat food and have become a popular household appliance. Among them, the microwave oven contains a magnetron, which converts electrical energy into microwave energy to achieve heating of objects.

[0003] In the related art, a microwave oven operates by using multiple power supplies to control multiple magnetrons. Specifically, one power supply controls one magnetron, and multiple magnetrons are controlled to work alternately by switching the multiple power supplies on and off.

[0004] However, the above technical solution often requires providing multiple power supplies in order to enable the microwave oven to work normally, which makes the structure of the microwave oven more complicated and leads to excessively high cost of the microwave oven. Summary of the invention

[0005] The embodiments of the present application provide a control drive device, a control method, an electronic cooking appliance and a storage medium, which can save the cost of the electronic cooking appliance.

[0006] On the one hand, an embodiment of the present application provides a control driving device, the control driving device comprising: a power supply circuit, a driving circuit and a control circuit;

[0007] The power supply circuit comprises a high voltage output terminal, a first low voltage output terminal and a second low voltage output terminal, and is used to supply power to the drive circuit;

[0008] The driving circuit includes at least two parallel driving branches, each of which includes a reed switch and a magnetron, the reed switch is connected between the high-voltage output end of the power supply circuit and the high-voltage input end of the magnetron, the high-voltage input end of the magnetron is connected to the first low-voltage output end of the power supply circuit, and the low-voltage input end of the magnetron is connected to the second low-voltage output end of the power supply circuit, and the reed is used to control the on and off of the driving branch;

[0009] The control circuit is used to control the on and off of the reed switch.

[0010] In some embodiments, the control circuit includes: a voltage control device;

[0011] The voltage control device is connected in parallel to the two ends of the reed switch and is used to provide a control voltage to the reed switch, and the control voltage is used to control the on and off of the reed switch.

[0012] In some embodiments, the control circuit includes: a magnetic field generating device;

[0013] The magnetic field generating device is used to provide a magnetic field to the reed switch, and the magnetic field is used to control the on and off of the reed switch.

[0014] In some embodiments, the power supply circuit includes: a first rectifier circuit and a second rectifier circuit;

[0015] The first output end of the first rectifier circuit is the high voltage output end of the power supply circuit, and the second output end of the first rectifier circuit is grounded;

[0016] The first output end of the second rectifier circuit is the first low-voltage output end of the power supply circuit, and the second output end of the second rectifier circuit is the second low-voltage output end of the power supply circuit;

[0017] The first rectifier circuit is used to provide a first voltage for the drive circuit, and the first voltage is used to drive the magnetron to generate microwaves; the second rectifier circuit is used to provide a second voltage for the drive circuit, and the second voltage is used to heat the filament of the magnetron.

[0018] In some embodiments, the control drive device further includes: a voltage regulating circuit;

[0019] The voltage regulating circuit is connected to the power supply circuit and the AC power supply respectively, and the voltage regulating circuit is used to regulate the voltage of the AC power output by the AC power supply.

[0020] On the other hand, an embodiment of the present application provides a control method for a control drive device, the method is used to control any of the control drive devices described above, the method comprising:

[0021] In response to the target control operation, a microwave control instruction is generated, wherein the microwave control instruction is used to indicate the working order and working duration of at least two magnetrons in the control drive device;

[0022] According to the microwave control instruction, the working state of at least two reed switches in the control drive device is controlled so that the at least two magnetrons work alternately, and the working state includes on and off.

[0023] In some embodiments, generating a microwave control instruction in response to the target control operation includes:

[0024] In response to the target control operation, obtaining an operation instruction;

[0025] The operation instruction is parsed based on the microwave control program to generate the microwave control instruction.

[0026] In some embodiments, parsing the operation instruction based on the microwave control program to generate the microwave control instruction includes:

[0027] Parsing the operation instruction based on the microwave control program to determine the total working time of at least two magnetrons in the control drive device and the working order of each magnetron;

[0028] Based on the working order of each magnetron and the total working time, the working time of each magnetron is determined to obtain the microwave control instruction.

[0029] On the other hand, an embodiment of the present application provides an electronic cooking appliance, the electronic cooking appliance comprising: a cooking appliance body, a control drive device and an interaction module;

[0030] The control drive device and the interaction module are located inside the cooking appliance body;

[0031] The control and driving device comprises a power supply circuit, a driving circuit and a control circuit, and is used to control the working state of the electronic cooking appliance;

[0032] The power supply circuit includes a high-voltage output end, a first low-voltage output end and a second low-voltage output end, which are used to supply power to the drive circuit; the drive circuit includes at least two parallel drive branches, each of which includes a reed switch and a magnetron, the reed switch is connected between the high-voltage output end of the power supply circuit and the high-voltage input end of the magnetron, the high-voltage input end of the magnetron is connected to the first low-voltage output end of the power supply circuit, and the low-voltage input end of the magnetron is connected to the second low-voltage output end of the power supply circuit, the reed switch is used to control the on-off of the drive branch; the control circuit is used to control the on-off of the reed switch;

[0033] The interaction module is used to receive a control operation, the control operation is used to generate a microwave control instruction, and the microwave control instruction is used to indicate the working sequence and working duration of at least two magnetrons in the control drive device.

[0034] On the other hand, an embodiment of the present application provides a computer-readable storage medium, in which at least one computer program is stored. The at least one computer program is loaded and executed by a processor to implement the control method of the control drive device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 is a circuit diagram of a control drive device provided in an embodiment of the present application;

[0037] Figure 2 is a schematic diagram of a drive circuit and a control circuit provided in an embodiment of the present application;

[0038] Figure 3 is a schematic diagram of another driving circuit and a control circuit provided in an embodiment of the present application;

[0039] Figure 4 is a schematic diagram of a power supply circuit provided in an embodiment of the present application;

[0040] Figure 5 is a circuit diagram of another control drive device provided in an embodiment of the present application;

[0041] Figure 6 is a flow chart of a control method for controlling a driving device provided in an embodiment of the present application;

[0042] Figure 7 It is a structural diagram of an electronic cooking appliance provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0044] The present application embodiment takes the electronic cooking appliance as a microwave oven as an example. Common household microwave ovens usually use a power supply and a magnetron to heat items. However, since a single magnetron can only be placed on one side of the microwave oven, the magnetron's microwave uniformity is poor, resulting in poor heating effect of the microwave oven. For example, when the magnetron is located at the bottom of the microwave oven, when the microwave oven heats bread, after a period of heating, the bottom of the bread is very hot, but the top of the bread is still cold, resulting in uneven heating of the bread. It can be seen that the heating effect of the microwave oven is poor.

[0045] Therefore, it is necessary to increase the number of magnetrons inside the microwave oven to improve the heating effect of the microwave oven. Since multiple magnetrons are added, in order for the microwave oven to work normally, multiple power supplies are often required to control the multiple magnetrons to work, which makes the structure of the microwave oven more complicated, thereby resulting in excessively high costs for the microwave oven.

[0046] In order to save the cost of microwave ovens, reduce the number of power supplies, and enable a single power supply to control multiple magnetrons to work alternately, it is usually necessary to first study the working principle of the magnetron. Magnetrons are the basis of microwave ovens. Electric energy is converted into microwave energy by magnetrons to heat the oven cavity of the microwave oven. In order for the magnetron to work properly, it is necessary to provide the magnetron with a stable 3.3V filament heating voltage and a -4kV driving voltage.

[0047] The embodiment of the present application provides a control drive device, which includes a power supply circuit, a drive circuit and a control circuit. The drive circuit includes at least two parallel drive branches, each drive branch includes a reed switch and a magnetron, that is, the control drive device includes at least two reed switches and at least two magnetrons. In the following embodiment, the drive circuit includes two parallel control branches as an example for description.

[0048] Figure 1 is a circuit diagram of a control drive device provided in an embodiment of the present application. Figure 1 The control driving device includes: a power supply circuit 10, a driving circuit 20 and a control circuit 30.

[0049] The power supply circuit 10 includes a high-voltage output terminal A1, a first low-voltage output terminal A2, and a second low-voltage output terminal A3, which are used to supply power to the drive circuit 20. The first low-voltage output terminal A2 and the second low-voltage output terminal A3 are used to provide a 3.3V voltage to the drive circuit 20, and the magnetron in the drive circuit 20 can generate electrons under the action of the 3.3V voltage; the high-voltage output terminal A1 is used to provide a -4kV voltage to the drive circuit 20, and the magnetron in the drive circuit 20 can control the movement of electrons under the action of the -4kV voltage, thereby generating microwaves.

[0050] The driving circuit 20 includes two parallel driving branches 21a and 21b, each driving branch includes a reed switch and a magnetron. The driving branch 21a includes a reed switch 211a and a magnetron 212a, the reed switch 211a is connected between the high-voltage output terminal A1 of the power supply circuit 10 and the high-voltage input terminal B1a of the magnetron 212a, the high-voltage input terminal B1a of the magnetron 212a is connected to the first low-voltage output terminal A2 of the power supply circuit 10, and the low-voltage input terminal B2a of the magnetron 212a is connected to the second low-voltage output terminal A3 of the power supply circuit 10, and the reed switch 211a is used to control the on and off of the driving branch 21a. The driving branch 21b includes a reed switch 211b and a magnetron 212b. The reed switch 211b is connected between the high-voltage output terminal A1 of the power supply circuit 10 and the high-voltage input terminal B1b of the magnetron 212b. The high-voltage input terminal B1b of the magnetron 212b is connected to the first low-voltage output terminal A2 of the power supply circuit 10, and the low-voltage input terminal B2b of the magnetron 212b is connected to the second low-voltage output terminal A3 of the power supply circuit 10.

[0051] Among them, the reed switch can also be called a reed switch, which usually includes two magnetic reeds, which are usually made of two kinds of metals and sealed in a glass tube. The reed switch is an electric switch operated by an applied magnetic field. The two magnetic reeds in the reed switch are magnetized under the action of the applied magnetic field, so that they attract each other and contact, making the reed switch conductive.

[0052] In addition, the magnetron includes a cylindrical central cathode and a cylindrical anode. The cathode of the magnetron is the filament of the magnetron, and the anode of the magnetron is the shell of the magnetron. The magnetron includes three connection terminals, namely a high voltage input terminal, a low voltage input terminal and a ground terminal. Among them, the high voltage input terminal and the low voltage input terminal are the two ends of the magnetron cathode, the high voltage input terminal is also the low voltage output terminal of the magnetron, and the ground terminal is on the anode of the magnetron, and the ground terminal is connected to the ground wire.

[0053] When the magnetron is working normally, the filament of the magnetron is turned on under the action of the 3.3V heating voltage, the temperature of the filament rises and emits electrons. Under the action of the -4kV driving voltage, the electrons move from the cathode of the magnetron to the anode of the magnetron, converting electrical energy into microwave energy to achieve the heating function.

[0054] The control circuit is used to control the on and off of the reed switch, so as to switch the working state of the magnetron connected to the reed switch. That is, in the embodiment of the present application, the control drive device can control the reed switch in any branch to be turned on through the control circuit, and the magnetron connected to the reed switch in the branch is in a working state. Alternatively, the control drive device can also control the reed switch in any branch to be turned off through the control circuit, and the magnetron connected to the reed switch in the branch is in a non-working state, so as to switch the magnetron between a working state and a non-working state.

[0055] For example, see Figure 1 , when the control drive device works normally, the control circuit 30 controls the reed switch 211a to be turned on and controls the reed switch 211b to be turned off, then the magnetron 212a connected to the reed switch 211a is in working state, and the magnetron 212b connected to the reed switch 211b is in non-working state. Afterwards, the control circuit 30 controls the reed switch 211a to be turned off and controls the reed switch 211b to be turned on, then the magnetron 212a connected to the reed switch 211a stops working and switches from working state to non-working state, and the magnetron 212b connected to the reed switch 211b starts working and switches from non-working state to working state. This is repeated to realize the alternating operation of the two magnetrons. When the control drive device stops working, the control circuit 30 controls both reed switches to be turned off, at which time, both magnetrons are in non-working state.

[0056] In some embodiments, the reed switch is obtained by integrating a common reed switch and a coil, and the coil is used to provide a magnetic field for the reed switch. The control circuit 30 provides a control voltage for the reed switch, and controls the on and off of the reed switch through the control voltage. Figure 2 is a schematic diagram of a driving circuit and a control circuit provided in an embodiment of the present application. Figure 2 , the control circuit 30 includes: a voltage control device 301. The voltage control device 301 is connected in parallel at both ends of the reed switch 211a and the reed switch 211b, and is used to provide a control voltage to the reed switch 211a and the reed switch 211b, and the reed switch 211a and the reed switch 211b are turned on under the action of the control voltage. That is, when the voltage control device 301 applies a control voltage to the reed switch, the reed switch is turned on; when the voltage control device 301 does not apply a control voltage to the reed switch, the reed switch is disconnected, thereby achieving the purpose of controlling the on and off of the reed switch based on the control voltage. Among them, the control voltage is a rated voltage, which can be a DC voltage such as 8V, 10V, 12V or 15V, which is not specifically limited here. By providing a control voltage to the reed switch based on the voltage control device 301, the reed switch is controlled to be turned on, and then the magnetron can be controlled to enter the working state. After the control voltage is no longer provided, the reed switch is disconnected, so that the magnetron is switched from the working state to the non-working state, thereby realizing flexible switching of the working state of the magnetron.

[0057] For example, taking the rated voltage as 12V as an example, when the voltage control device 301 inputs a 12V control voltage to the reed switch 211a, the coil inside the reed switch 211a forms a magnetic field under the action of the 12V control voltage, and the two magnetic reed pieces inside the reed switch 211a are magnetized under the action of the magnetic field, thereby attracting and contacting each other. When the two magnetic reed pieces are in contact, the reed switch 211a is in a conducting state, so that the drive branch 21a where the reed switch 211a is located is conducting, and then the reed switch 211a is connected to the drive branch 21a. The magnetron 212a connected to the reed switch 211a is in working state; when the voltage control device 301 stops providing the 12V control voltage to the reed switch 211a, the magnetic field inside the reed switch 211a disappears, and the two magnetic reed plates separate due to the loss of the magnetic field. At this time, the reed switch 211a is in a disconnected state, so that the drive branch 21a where the reed switch 211a is located is disconnected, and then the magnetron 212a connected to the reed switch 211a stops working, switching from a working state to a non-working state.

[0058] In some embodiments, the reed switch is an ordinary reed switch, and the control circuit 30 can provide a magnetic field for the reed switch, and the on and off of the reed switch is controlled by the magnetic field. Figure 3 is a schematic diagram of another driving circuit and control circuit provided in an embodiment of the present application. Figure 3 , the control circuit 30 includes: a magnetic field generating device 302. The magnetic field generating device 302 is used to provide a magnetic field to the reed switch 211a or the reed switch 211b, and the reed switch 211a or the reed switch 211b is turned on under the action of the magnetic field. That is, when the magnetic field generating device 302 only provides a magnetic field to the reed switch 211a, the reed switch 211a is turned on and the reed switch 211b is turned off; when the magnetic field generating device 302 only provides a magnetic field to the reed switch 211b, the reed switch 211b is turned on and the reed switch 211a is turned off; when the magnetic field generating device 302 no longer provides a magnetic field to the reed switch 211a or the reed switch 211b, the reed switch 211a and the reed switch 211b are both turned off, thereby realizing the on-off control of the reed switch based on the magnetic field. By providing a magnetic field to the reed switch based on the magnetic field generating device 302, the reed switch can be controlled to conduct under the action of the magnetic field, and then the magnetron in the same branch as the reed switch can be controlled to enter the working state. After the magnetic field is no longer provided, the reed switch is disconnected, so that the magnetron in the same branch as the reed switch is switched from the working state to the non-working state, thereby realizing flexible switching of the working state of the magnetron.

[0059] For example, the reed switch is an ordinary reed switch. When the magnetic field generating device 302 is working, a magnetic field is formed. Since the reed switch 211a is within the range of the magnetic field, the two magnetic reed pieces inside the reed switch 211a are magnetized under the action of the magnetic field, thereby attracting and contacting each other. When the two magnetic reed pieces are in contact, the reed switch 211a is in a conducting state, so that the drive branch 21a where the reed switch 211a is located is conducting, and then the magnetron 212a connected to the reed switch 211a is in a working state; when the magnetic field generating device 302 is not working, the magnetic field around the reed switch 211a disappears, and the two magnetic reed pieces inside the reed switch 211a separate due to the loss of the magnetic field. At this time, the reed switch 211a is in a disconnected state, so that the drive branch 21a where the reed switch 211a is located is disconnected, and then the magnetron 212a connected to the reed switch 211a stops working, switching from a working state to a non-working state.

[0060] It should be noted that the power supply circuit includes: a first rectifier circuit and a second rectifier circuit. The first output end of the first rectifier circuit is the high-voltage output end of the power supply circuit, and the second output end of the first rectifier circuit is grounded; the first output end of the second rectifier circuit is the first low-voltage output end of the power supply circuit, and the second output end of the second rectifier circuit is the second low-voltage output end of the power supply circuit. The first rectifier circuit is used to provide a first voltage for the drive circuit, and the first voltage is used to drive the magnetron to generate microwaves; the second rectifier circuit is used to provide a second voltage for the drive circuit, and the second voltage is used to heat the filament of the magnetron.

[0061] The power supply circuit 10 is described in detail below. Figure 4 is a schematic diagram of a power supply circuit provided in an embodiment of the present application. Figure 4 The first rectifier circuit 11 includes: a first high-voltage diode 111, a second high-voltage diode 112, a first high-voltage capacitor 113 and a second high-voltage capacitor 114.

[0062] Among them, the output end of the first high-voltage diode 111 and the input end of the second high-voltage diode 112 are connected to the first input end of the first rectifier circuit 11, the input end of the first high-voltage diode 111 is connected to the first end of the first high-voltage capacitor 113, the output end of the second high-voltage diode 112 is connected to the first end of the second high-voltage capacitor 114, the second end of the second high-voltage capacitor 114 and the second end of the first high-voltage capacitor 113 are connected to the second input end of the first rectifier circuit 11, the input end of the first high-voltage diode 111 is connected to the first output end of the first rectifier circuit 11, and the output end of the second high-voltage diode 112 is grounded.

[0063] The first high-voltage diode 111 and the second high-voltage diode 112 are both electronic devices made of semiconductor materials (silicon, selenium, germanium, etc.) and have unidirectional conductivity. For example, when a forward voltage is applied to the anode and cathode of the first high-voltage diode 111, the first high-voltage diode 111 is turned on. When a reverse voltage is applied to the anode and cathode, the first high-voltage diode 111 is turned off. The first high-voltage capacitor 113 and the second high-voltage capacitor 114 are both composed of two conductors (plates) close to each other with a non-conductive insulating medium in between. When a voltage is applied between the two plates, the capacitor will store charge.

[0064] The first rectifier circuit 11 can convert an AC voltage into a DC voltage. When an AC voltage is input to the input end of the first rectifier circuit 11, in the positive half cycle of the AC voltage, the second high-voltage diode 112 is turned on, the first high-voltage diode 111 is turned off, and the second high-voltage capacitor 114 is in a charging state. In the negative half cycle of the AC voltage, the second high-voltage diode 112 is turned off, the first high-voltage diode 111 is turned on, and the second high-voltage capacitor 113 is in a charging state. When the capacitor is fully charged, the capacitor discharges, and provides a DC voltage for driving the magnetron to generate microwaves to the drive circuit 20 connected to the first rectifier circuit 11.

[0065] Continue to see Figure 4 The second rectifier circuit 12 includes a third high-voltage diode 121 and a third high-voltage capacitor 122. The input end of the third high-voltage diode 121 is connected to the first input end of the second rectifier circuit 12, the output end of the third high-voltage diode 121 and the first end of the third high-voltage capacitor 122 are connected to the second output end of the second rectifier circuit 12, and the second end of the third high-voltage capacitor 122 and the second input end of the second rectifier circuit 12 are connected to the first output end of the second rectifier circuit 12.

[0066] Among them, the third high-voltage diode 121 is an electronic device made of semiconductor materials (silicon, selenium, germanium, etc.) and has unidirectional conductivity; the third high-voltage capacitor 122 is composed of two conductors (plates) close to each other with a layer of non-conductive insulating medium in between. When a voltage is applied between the two plates, the third high-voltage capacitor 122 will store charge.

[0067] The second rectifier circuit 12 can also convert AC voltage into DC voltage. When AC voltage is applied to the input end of the second rectifier circuit 12, in the positive half cycle of the AC voltage, the third high-voltage diode 121 is turned on, and the third high-voltage capacitor 122 is in a charging state. In the negative half cycle of the AC voltage, the third high-voltage diode 121 is turned off, and no power is applied to the third high-voltage capacitor 122. When the third high-voltage capacitor 122 is fully charged, the third high-voltage capacitor 122 is discharged to provide a DC voltage for heating the magnetron filament to the drive circuit 20 connected to the first rectifier circuit 11.

[0068] Another point that needs to be explained is that in order for the magnetron inside the microwave oven to work properly, it is necessary to provide the magnetron with a -4kV driving voltage and a 3.3V filament heating voltage. However, the power supply used in daily life is mostly 220V AC, which requires the voltage to be adjusted to the voltage required for the normal operation of the magnetron through voltage regulation. Figure 5 is a circuit diagram of a control drive device provided in an embodiment of the present application. Figure 5 The control driving device further includes: a voltage regulating circuit, wherein the voltage regulating circuit is connected to the power supply circuit and the AC power supply respectively, and the voltage regulating circuit is used to regulate the voltage of the AC power output by the AC power supply.

[0069] The voltage regulating circuit provides two AC voltages to the power supply circuit, and the power supply circuit can convert the two AC voltages into two DC voltages to provide 3.3V filament heating voltage and -4kV driving voltage for the magnetron in the driving circuit, so that the magnetron can work normally. Among them, the voltage output from the voltage regulating circuit to the power supply circuit is a fixed value. For example, if the AC power supply is 220V, the voltage output to the power supply circuit through the voltage regulating circuit is -4kV and 3.3V.

[0070] Continue to see Figure 5 The voltage regulating circuit 40 includes: a primary winding 401, a first secondary winding 402 and a second secondary winding 403. The primary winding 401 is connected to an AC power source, a first output end of the first secondary winding 402 is connected to a first input end of the first rectifier circuit 11, a second output end of the first secondary winding 402 is connected to a second input end of the first rectifier circuit 11, a first output end of the second secondary winding 403 is connected to a first input end of the second rectifier circuit 12, and a second output end of the second secondary winding 403 is connected to a second input end of the second rectifier circuit 12.

[0071] The AC power source is converted into high-voltage AC power through the primary winding 401 and the first secondary winding 402, and is input into the first rectifier circuit 11. The first rectifier circuit 11 converts the high-voltage AC power into high-voltage DC power to provide a driving voltage for the magnetron 212 of the drive circuit 20. The AC power source is converted into low-voltage AC power through the primary winding 401 and the second secondary winding 403, and is input into the second rectifier circuit 12. The second rectifier circuit 12 converts the low-voltage AC power into low-voltage DC power to provide a filament heating voltage for the magnetron 212 of the drive circuit 20.

[0072] Another point to note is that Figure 5, the second output end of the second rectifier circuit 12 and the low voltage input end B2a of the magnetron 212a are always in a conductive state, the first output end of the second rectifier circuit 12 and the high voltage input end B1a of the magnetron 212a are always in a conductive state, the current emitted from the second output end of the second rectifier circuit 12 returns from the first output end of the second rectifier circuit 12 after passing through B2a and B1a, forming a loop. Similarly, the second output end of the second rectifier circuit 12 and the low voltage input end B2b of the magnetron 212b are always in a conductive state, the first output end of the second rectifier circuit 12 and the high voltage input end B2b of the magnetron 212b are always in a conductive state, the current emitted from the second output end of the second rectifier circuit 12 returns from the first output end of the second rectifier circuit 12 after passing through B2b and B1b, forming a loop. That is, when the microwave oven is powered on, the magnetron can obtain a 3.3V filament heating voltage. Therefore, by controlling the on-off of the circuit that provides a -4kV driving voltage to the magnetron, the switching of the magnetron's working state can be controlled. That is, by controlling the on-off of the circuit between the high-voltage output end of the power supply circuit and the high-voltage input end of the magnetron, the switching of the magnetron's working state can be controlled.

[0073] Since the reed switch is located in the circuit between the high-voltage output end of the power supply circuit and the high-voltage input end of the magnetron, the switching of the working state of the magnetron in the same branch as the reed switch can be controlled by controlling the on and off of the reed switch. For example, when the reed switch 211a is turned on, the driving branch 21a where the reed switch 211a is located is turned on, and the magnetron 212a connected to the reed switch 211a is in a working state, that is, a driving voltage of -4kV is applied to the magnetron 212a. Since the filament heating voltage of 3.3V has been connected to the magnetron 212a, the magnetron 212a generates microwaves under the action of these two voltages, thereby achieving heating of the object. When the reed switch 211a is disconnected, the magnetron 212a has no driving voltage, and the electrons emitted by the cathode of the magnetron 212a cannot be driven to move toward the anode, so microwaves cannot be generated, and the object cannot be heated. At this time, the magnetron 212a stops working.

[0074] In the embodiment of the present application, since the filament of the magnetron is always in a heated state, when the working state of the magnetron is switched, the magnetron can be flexibly switched between the working state and the non-working state by controlling the on and off of the reed switch in the same branch as the magnetron, and the filament does not need to be reheated. Therefore, when there are multiple magnetrons in the drive control device, the multiple magnetrons can be flexibly switched to work alternately. At the same time, a single power supply is used to control multiple magnetrons, which reduces the complexity of the drive control device and saves the cost of the electronic cooking appliance.

[0075] Figure 6is a flow chart of a control method for controlling a driving device provided in an embodiment of the present application. The execution subject of the embodiment of the present application is an electronic cooking appliance, see Figure 6 , the method comprising:

[0076] 601. The electronic cooking appliance generates a microwave control instruction in response to a target control operation.

[0077] The microwave control instruction is used to indicate the working order and working duration of at least two magnetrons in the control driving device. This process can be implemented through the following two steps, including:

[0078] (1) The electronic cooking appliance responds to the target control operation and obtains the operation instruction.

[0079] Different target control operations correspond to different operation instructions. The operation instructions can control the electronic cooking appliance to perform the corresponding operation. For example, when the user uses the electronic cooking appliance to heat milk, he sets the medium heat for 3 minutes on the control panel of the cooking appliance body. At this time, the electronic cooking appliance responds to the user's operation and obtains the operation instruction corresponding to the medium heat for 3 minutes; or the user sets the high heat for 1 minute. At this time, the electronic cooking appliance responds to the user's operation and obtains the operation instruction corresponding to the high heat for 1 minute.

[0080] (2) The electronic cooking appliance parses the operation instructions based on the microwave control program and generates microwave control instructions.

[0081] In order to enable the electronic cooking appliance to perform the operation corresponding to the operation instruction, the electronic cooking appliance needs to use a microwave control program to parse the operation instruction and generate a microwave control instruction. The microwave control instruction can be the control logic of the magnetron inside the electronic cooking appliance, which can control whether the magnetron in the control drive device is in a working state. Accordingly, the process of the electronic cooking appliance parsing the operation instruction based on the microwave control program and generating the microwave control instruction is as follows: the electronic cooking appliance parses the operation instruction based on the microwave control program, determines the total working time of at least two magnetrons in the control drive device and the working order of each magnetron; determines the working time of each magnetron based on the working order and the total working time of each magnetron, and obtains the microwave control instruction.

[0082] For example, a control drive device of an electronic cooking appliance includes two magnetrons, which are the first magnetron and the second magnetron. When a user uses the electronic cooking appliance to heat a cup of milk, he sets the heating to medium heat for 3 minutes. At this time, the electronic cooking appliance responds to the user's operation and obtains an operation instruction corresponding to heating to medium heat for 3 minutes. The electronic cooking appliance parses the operation instruction and determines that the total working time of the two magnetrons is 3 minutes, and the working order of the two magnetrons is to start from the first magnetron and alternate every 30 seconds, that is, after the first magnetron works for 30 seconds, it is switched to the second magnetron, and after the second magnetron works for 30 seconds, it is switched to the first magnetron. The two magnetrons work alternately in this way repeatedly until the total working time reaches 3 minutes.

[0083] 602. According to the microwave control instruction, the electronic cooking appliance controls the working state of at least two reed switches in the driving device to make at least two magnetrons work alternately.

[0084] Among them, the working state includes on and off. Continuing with the above example, according to the microwave control instruction, the control drive device is controlled, that is, within the first 30 seconds, the reed switch connected to the first magnetron in the control drive device is controlled to be on, so that the first magnetron is in the working state; within the second 30 seconds, the reed switch connected to the first magnetron in the control drive device is controlled to be disconnected, so that the first magnetron stops working and switches from the working state to the non-working state, and the reed switch connected to the second magnetron is controlled to be on, so that the second magnetron starts working and switches from the non-working state to the working state; within the third 30 seconds, the reed switch connected to the first magnetron in the control drive device is controlled to be on, so that the first magnetron starts working and switches from the non-working state to the working state; the reed switch connected to the empty box and the second magnetron is disconnected, and the second magnetron stops working and switches from the working state to the non-working state; in this way, the two magnetrons work alternately until the total working time reaches 3 minutes. When the total working time reaches 3 minutes, both magnetrons are disconnected, and the electronic cooking appliance stops heating at this time.

[0085] In the embodiment of the present application, by controlling the on and off of the reed switch, flexible switching between the working state and the non-working state of the magnetron can be achieved. Therefore, when controlling multiple magnetrons, multiple magnetrons can be flexibly switched to work alternately, thereby improving the working flexibility of the electronic cooking appliance.

[0086] Figure 7 A structural diagram of an electronic cooking appliance provided in an embodiment of the present application. Figure 7 The electronic cooking appliance comprises: a cooking appliance body 1, a control driving device 2 and an interaction module 3. The control driving device 2 and the interaction module 3 are located inside the cooking appliance body 1.

[0087] The control drive device 2 includes a power supply circuit, a drive circuit and a control circuit, and is used to control the working state of the electronic cooking appliance. The power supply circuit includes a high-voltage output end, a first low-voltage output end and a second low-voltage output end, and is used to supply power to the drive circuit; the drive circuit includes at least two parallel drive branches, each drive branch includes a reed switch and a magnetron, the reed switch is connected between the high-voltage output end of the power supply circuit and the high-voltage input end of the magnetron, the high-voltage input end of the magnetron is connected to the first low-voltage output end of the power supply circuit, and the low-voltage input end of the magnetron is connected to the second low-voltage output end of the power supply circuit, the reed switch is used to control the on and off of the drive branch; the control circuit is used to control the on and off of the reed switch.

[0088] The interaction module 3 is used to receive control operations, and the received control operations are used to generate microwave control instructions, and the microwave control instructions are used to indicate the working order and working duration of at least two magnetrons in the control drive device 2.

[0089] In the embodiment of the present application, a reed switch 211 is added between the high-voltage input end of the magnetron 212 and the high-voltage output end A1 of the power supply circuit. According to the control operation, the on-off of the reed switch 211 is controlled by the control circuit 30, thereby controlling the switching of the working state of the magnetron 212 connected thereto, that is, when the reed switch 211 is turned on, the magnetron 212 connected thereto is in a working state, and when the reed switch 211 is turned off, the magnetron 212 connected thereto stops working and switches from a working state to a non-working state. By switching the on-off of multiple reed switches 211, a single power supply can flexibly control multiple magnetrons 212 to work alternately, thereby reducing the complexity of the circuit of the electronic cooking appliance, thereby saving the cost of the electronic cooking appliance.

[0090] The embodiment of the present application also provides a computer-readable storage medium, in which at least one computer program is stored, and the at least one computer program is loaded and executed by a processor to implement the control method of the control drive device of the above embodiment. The computer-readable storage medium can be a memory. For example, the computer-readable storage medium can be a ROM (Read-Only Memory), a RAM (Random Access Memory), a CD-ROM (Compact Disc Read-Only Memory), a magnetic tape, a floppy disk, an optical data storage device, etc.

[0091] The embodiments of the present application further provide a computer program or a computer program product, wherein the computer program or the computer program product comprises a computer program code, and when the computer program code is executed by a computer, the computer implements the control method of the control drive device in the above embodiments.

[0092] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A control drive device, characterized in that: The control drive device comprises: a power supply circuit (10), a drive circuit (20) and a control circuit (30); The power supply circuit (10) comprises a high-voltage output terminal (A1), a first low-voltage output terminal (A2) and a second low-voltage output terminal (A3), and is used to supply power to the drive circuit (20); The drive circuit (20) comprises at least two parallel drive branches (21), each of the drive branches (21) comprising a reed switch (211) and a magnetron (212), the reed switch (211) being connected between a high-voltage output end (A1) of the power supply circuit (10) and a high-voltage input end (B1) of the magnetron (212), the high-voltage input end (B1) of the magnetron (212) being connected to a first low-voltage output end (A2) of the power supply circuit (10), and the low-voltage input end (B2) of the magnetron (212) being connected to a second low-voltage output end (A3) of the power supply circuit (10), and the reed switch (211) being used to control the on / off of the drive branch (21); The control circuit (30) is used to control the on and off of the reed switch (211): The reed switch (211) comprises a coil, the coil is used to provide a magnetic field for the reed switch (211), the control circuit (30) comprises a voltage control device (301), the voltage control device (301) is connected in parallel to both ends of the reed switch (211), and is used to provide a control voltage to the reed switch (211), and the control voltage is used to control the on and off of the reed switch (211); or, The reed switch (211) does not include a coil, and the control circuit (30) includes a magnetic field generating device (302). The magnetic field generating device (302) is used to provide a magnetic field to the reed switch (211), and the magnetic field is used to control the on and off of the reed switch (211).

2. The control drive device according to claim 1, characterized in that: The power supply circuit (10) comprises: a first rectifier circuit (11) and a second rectifier circuit (12); The first output end of the first rectifier circuit (11) is the high-voltage output end (A1) of the power supply circuit (10), and the second output end of the first rectifier circuit (11) is grounded; The first output end of the second rectifier circuit (12) is the first low-voltage output end (A2) of the power supply circuit (10), and the second output end of the second rectifier circuit (12) is the second low-voltage output end (A3) of the power supply circuit (10); The first rectifier circuit (11) is used to provide a first voltage for the drive circuit (20), and the first voltage is used to drive the magnetron (212) to generate microwaves; and the second rectifier circuit (12) is used to provide a second voltage for the drive circuit (20), and the second voltage is used to heat the filament of the magnetron (212).

3. The control drive device according to claim 1, characterized in that: The control drive device further comprises: a voltage regulating circuit (40); The voltage regulating circuit (40) is respectively connected to the power supply circuit (10) and the AC power supply, and the voltage regulating circuit (40) is used to regulate the voltage of the AC power output by the AC power supply.

4. A control method for controlling a driving device, characterized in that: The method is used to control the control drive device according to any one of claims 1 to 3, and the method comprises: In response to the target control operation, a microwave control instruction is generated, wherein the microwave control instruction is used to indicate the working order and working duration of at least two magnetrons in the control drive device; According to the microwave control instruction, the working state of at least two reed switches in the control drive device is controlled so that the at least two magnetrons work alternately, and the working state includes on and off.

5. The method according to claim 4, characterized in that The step of generating a microwave control instruction in response to the target control operation comprises: In response to the target control operation, obtaining an operation instruction; The operation instruction is parsed based on the microwave control program to generate the microwave control instruction.

6. The method according to claim 5, characterized in that The step of parsing the operation instruction based on the microwave control program to generate the microwave control instruction includes: Parsing the operation instruction based on the microwave control program to determine the total working time of at least two magnetrons in the control drive device and the working order of each magnetron; Based on the working order of each magnetron and the total working time, the working time of each magnetron is determined to obtain the microwave control instruction.

7. An electronic cooking appliance, characterized in that: The electronic cooking appliance comprises: a cooking appliance body (1), a control drive device (2) and an interactive module (3); The control drive device (2) and the interaction module (3) are located inside the cooking appliance body (1); The control drive device (2) comprises a power supply circuit (10), a drive circuit (20) and a control circuit (30), and is used to control the working state of the electronic cooking appliance; The power supply circuit (10) comprises a high-voltage output terminal (A1), a first low-voltage output terminal (A2) and a second low-voltage output terminal (A3), and is used to supply power to the drive circuit (20); the drive circuit (20) comprises at least two parallel drive branches (21), each of the drive branches (21) comprises a reed switch (211) and a magnetron (212), and the reed switch (211) is connected to the high-voltage output terminal (A1) of the power supply circuit (10) and the magnetron (212). The high-voltage input end (B1) of the magnetron (212) is connected to the first low-voltage output end (A2) of the power supply circuit (10), the low-voltage input end (B2) of the magnetron (212) is connected to the second low-voltage output end (A3) of the power supply circuit (10), the reed switch (211) is used to control the on-off of the drive branch (21); and the control circuit (30) is used to control the on-off of the reed switch (211); The interaction module (3) is used to receive a control operation, the control operation is used to generate a microwave control instruction, and the microwave control instruction is used to indicate the working sequence and working duration of at least two magnetrons in the control drive device (2); The reed switch (211) comprises a coil, the coil is used to provide a magnetic field for the reed switch (211), the control circuit (30) comprises a voltage control device (301), the voltage control device (301) is connected in parallel to both ends of the reed switch (211), and is used to provide a control voltage to the reed switch (211), and the control voltage is used to control the on and off of the reed switch (211); or, The reed switch (211) does not include a coil, and the control circuit (30) includes a magnetic field generating device (302). The magnetic field generating device (302) is used to provide a magnetic field to the reed switch (211), and the magnetic field is used to control the on and off of the reed switch (211).

8. A computer-readable storage medium, characterized in that: At least one computer program is stored in the computer-readable storage medium, and the at least one computer program is loaded and executed by the processor to implement the control method of the driving device according to any one of claims 4 to 6.

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