Kitchen appliance linkage control system

Abstract

The utility model discloses a kitchen appliance linkage control system, which comprises a kitchen air conditioner and an intelligent cooker, the kitchen air conditioner comprises a detection module, a first controller and a first wireless communication module, and the detection module is used for detecting the smoke concentration of a kitchen and outputting a corresponding first electric signal; the first controller is used for outputting a first state control signal through the first wireless communication module when the first electric signal is not greater than a preset voltage; the intelligent cooker comprises a second wireless communication module, a second controller, a switch module, an electromagnetic valve and an adjusting module; the second controller is used for receiving the first state control signal through the second wireless communication module and controlling the switch module to be conducted according to the first state control signal so as to be connected with the electromagnetic valve; the adjusting module is used for outputting adjusting voltage to the electromagnetic valve when the electromagnetic valve is switched on, so that the opening degree of the electromagnetic valve is adjusted according to the adjusting voltage; according to the invention, the intelligent cooker can be effectively monitored, so that the safety of a kitchen is improved.

Description

Technical Field

[0001] This application relates to the field of electronic technology, specifically to a kitchen appliance linkage control system. Background Technology

[0002] Currently, kitchen air conditioners have been introduced to provide appropriate cooling during cooking; however, in actual cooking, the operating status of kitchen equipment needs to be manually set, making it impossible to automatically monitor the equipment, which poses a safety hazard. Therefore, it is essential to have safety monitoring equipment in the kitchen.

[0003] Therefore, the technology still needs to be improved and enhanced. Utility Model Content

[0004] This application provides a kitchen air conditioner and kitchen appliance linkage control system, which can effectively monitor smart stoves and improve kitchen safety.

[0005] This application provides a kitchen appliance linkage control system, which includes a kitchen air conditioner and a smart cooktop:

[0006] The kitchen air conditioner includes a detection module, a first controller, and a first wireless communication module connected in sequence. The detection module is used to detect the concentration of kitchen smoke and output a corresponding first electrical signal. The first controller is used to output a first state control signal through the first wireless communication module when the first electrical signal is not greater than a preset voltage.

[0007] The smart cooktop includes a second wireless communication module, a second controller, a switch module, and a solenoid valve connected in sequence; the second controller is used to receive a first state control signal via the second wireless communication module, and control the switch module to turn on according to the first state control signal so as to connect with the solenoid valve;

[0008] The smart cooktop also includes an adjustment module, which is connected to the second controller and the solenoid valve respectively. The adjustment module is used to output an adjustment voltage to the solenoid valve when the solenoid valve is turned on, so that the solenoid valve adjusts the opening degree according to the adjustment voltage.

[0009] In some embodiments of the kitchen appliance linkage control system, the switching module includes a connection interface, a switching unit, and a feedback unit; both the switching unit and the feedback unit are connected to the second controller, and the switching unit is also connected to the solenoid valve through the connection interface.

[0010] The switching unit is used to energize the solenoid valve according to the conduction control signal output by the second controller;

[0011] The feedback unit outputs a corresponding status feedback signal to the second controller based on the conduction control signal output by the second controller.

[0012] In some embodiments of the kitchen appliance linkage control system, the switching unit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first switching transistor, a second switching transistor, a first diode, and a second diode.

[0013] One end of the first resistor is connected to the first terminal of the first switching transistor and the cathode of the first diode. The other end of the first resistor is connected to the second controller. One end of the second resistor is connected to the first terminal of the first switching transistor. The anode of the first diode, the other end of the second resistor, and the second terminal of the first switching transistor are all grounded. The third terminal of the first switching transistor is connected to the first terminal of the second switching transistor through the third resistor. One end of the fourth resistor is connected to the first terminal of the second switching transistor. The other end of the fourth resistor is energized. The second terminal of the second switching transistor is energized. The third terminal of the second switching transistor is connected to the connection interface. The cathode of the second diode and one end of the fifth resistor are both connected to the third terminal of the second switching transistor. The anode of the second diode is grounded.

[0014] In some embodiments of the kitchen appliance linkage control system, the feedback unit includes a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a third switch. One end of the sixth resistor is connected to the second controller, and the other end of the sixth resistor and one end of the seventh resistor are both connected to the first end of the third switch. The second end of the third switch is grounded, and the third end of the third switch is connected to one end of the eighth resistor and one end of the ninth resistor. The other end of the eighth resistor is connected to the second controller, and the other end of the ninth resistor is energized.

[0015] In some embodiments of the kitchen appliance linkage control system, the adjustment module includes a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a first capacitor, a second capacitor, a third diode, a fourth switching transistor, and a driver chip.

[0016] One end of the tenth resistor is connected to the second controller, and the other end of the tenth resistor is connected to the first end of the fourth switch. One end of the eleventh resistor and one end of the first capacitor are both connected to the first end of the fourth switch. The other end of the eleventh resistor, the other end of the first capacitor, and the second end of the fourth switch are all grounded. The third end of the fourth switch is connected to the driver chip through the twelfth resistor. One end of the thirteenth resistor is connected to the driver chip, and the other end of the thirteenth resistor is powered. The cathode of the third diode is connected to the driver chip, and the anode of the third diode is grounded. One end of the second capacitor and the driver chip are both connected to the connection interface, and the other end of the second capacitor is grounded. One end of the fourteenth resistor and one end of the fifteenth resistor are both connected to the connection interface, and the other ends of the fourteenth resistor and the fifteenth resistor are both grounded.

[0017] In some embodiments of the kitchen appliance linkage control system, the smart stove also includes one or more burners and a protection module corresponding to the number of burners, the protection module being connected to a second controller;

[0018] The protection module is used to detect the heating temperature of the corresponding burner head and output a corresponding second electrical signal based on the heating temperature;

[0019] The second controller is used to control the switching state of the switching module according to the second electrical signal, so as to control the energization state of the solenoid valve.

[0020] In some embodiments of the kitchen appliance linkage control system, the protection module includes a thermocouple and a voltage follower unit, wherein the thermocouple is connected to the voltage follower unit and the voltage follower unit is connected to a second controller.

[0021] Thermocouples are used to detect the heating temperature of the corresponding burner head and output a corresponding second electrical signal based on the heating temperature;

[0022] The voltage follower unit is used to output the second electrical signal to the second controller.

[0023] In some embodiments of the kitchen appliance linkage control system, the voltage follower unit includes a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a third capacitor, a fourth capacitor, a fifth capacitor, and an operational amplifier;

[0024] One end of the sixteenth resistor is electrically connected to the thermocouple. The other end of the sixteenth resistor and one end of the seventeenth resistor are both connected to the inverting input of the operational amplifier. One end of the third capacitor is connected to one end of the sixteenth resistor, and the other end of the third capacitor is grounded. The other end of the seventeenth resistor is connected to the output of the operational amplifier. One end of the eighteenth resistor is connected to the non-inverting input of the operational amplifier, and the other end of the eighteenth resistor is grounded. One end of the fourth capacitor is connected to the power supply of the operational amplifier. One end of the nineteenth resistor is connected to the output of the operational amplifier, and the other end of the nineteenth resistor is connected to the second controller. One end of the fifth capacitor is connected to the second controller, and the other ends of the fifth capacitor and the other ends of the fourth capacitor are grounded.

[0025] In some embodiments of the kitchen appliance linkage control system, the detection module includes a detection unit and a comparison unit, the detection unit is connected to the comparison unit, and the comparison unit is also connected to the first controller.

[0026] The detection unit is used to detect the concentration of kitchen smoke and output a corresponding first electrical signal based on the concentration of kitchen smoke; the comparison unit is used to compare the voltage value corresponding to the first electrical signal with a preset voltage. When the voltage value corresponding to the electrical signal is greater than the preset voltage, the first controller is controlled to output a second state control signal through the first wireless communication module.

[0027] In some embodiments of the kitchen appliance linkage control system, the comparison unit includes an adjustable resistor and a comparator. The first fixed terminal of the adjustable resistor is energized, the second fixed terminal of the adjustable resistor is grounded, the variable terminal of the adjustable resistor is connected to the non-inverting input terminal of the comparator, the inverting input terminal of the comparator is connected to the detection unit, and the output terminal of the comparator is connected to the first controller.

[0028] This application provides a kitchen appliance linkage control system. In this system, the kitchen air conditioner establishes a communication connection with the smart stove through a wireless communication module, so as to realize automatic monitoring of the smart stove and improve kitchen safety. Attached Figure Description

[0029] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0030] Figure 1 This is a structural block diagram of the first embodiment of the kitchen appliance linkage control system provided in this application.

[0031] Figure 2 This is a structural block diagram of the second embodiment of the kitchen appliance linkage control system provided in this application.

[0032] Figure 3 This is a structural block diagram of the third embodiment of the kitchen appliance linkage control system provided in this application.

[0033] Figure 4 This is a structural block diagram of the fourth embodiment of the kitchen appliance linkage control system provided in this application.

[0034] Figure 5 This is a structural block diagram of the switch module in the kitchen appliance linkage control system provided in an embodiment of this application.

[0035] Figure 6 This is a structural block diagram of the protection module in the kitchen appliance linkage control system provided in an embodiment of this application.

[0036] Figure 7 This is a structural block diagram of the detection module in the kitchen appliance linkage control system provided in an embodiment of this application.

[0037] Figure 8 The circuit diagram of the switch module in the kitchen appliance linkage control system provided in the embodiments of this application.

[0038] Figure 9 The circuit diagram of the voltage follower unit in the kitchen appliance linkage control system provided in the embodiments of this application.

[0039] Figure 10The circuit diagram of the detection module and alarm module in the kitchen appliance linkage control system provided in the embodiments of this application. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features thus defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0042] Please see Figure 1 This application provides a kitchen appliance linkage control system, which includes a kitchen air conditioner 10 and a smart stove 20. The kitchen air conditioner 10 includes a detection module 11, a first controller 12, and a first wireless communication module 13. Both the detection module 11 and the first wireless communication module 13 are connected to the first controller 12. The smart stove 20 includes a solenoid valve 21, a second wireless communication module 22, a second controller 23, and a switch module 24. The second wireless communication module 22 is connected to the second controller 23, the second controller 23 is connected to the switch module 24, and the switch module 24 is also connected to the solenoid valve 21.

[0043] The detection module 11 is used to detect the concentration of kitchen smoke and output a corresponding first electrical signal; the first controller 12 is used to output a first state control signal via the first wireless communication module 13 when the first electrical signal is not greater than a preset voltage.

[0044] Specifically, the detection module 11 detects the concentration of kitchen smoke and outputs a corresponding first electrical signal based on the concentration. When the voltage value corresponding to the first electrical signal is not greater than a preset voltage, it outputs a first level to the first controller 12; when the voltage value corresponding to the first electrical signal is greater than the preset voltage, it outputs a second level to the first controller 12. The first controller 12 then outputs a first state control signal via the first wireless communication module 13 based on the first level, or outputs a second state control signal via the first wireless communication module 13 based on the second level.

[0045] The second controller 23 receives a first state control signal via the second wireless communication module 22 and controls the switch module 24 to turn on according to the first state control signal, so as to connect with the solenoid valve 21. When the smart stove 20 receives an external start signal, it can enter the working state according to the gas input through the solenoid valve 21. The second controller 23 can also receive a second state control signal via the second wireless communication module 22 and control the switch module 24 to turn off according to the second state control signal, so as to disconnect the gas input passage of the solenoid valve 21.

[0046] In this embodiment, the kitchen appliance linkage control system establishes a communication connection between the kitchen air conditioner 10 and the smart stove 20 by setting wireless communication modules in the kitchen air conditioner 10 and the smart stove 20, so as to realize effective monitoring of the smart stove 20 and thus improve kitchen safety.

[0047] Please see Figure 2 In some embodiments, the kitchen air conditioner 10 is further provided with an alarm module 14, which is connected to the detection module 11. The alarm module 14 is used to output an alarm signal according to a second level. Specifically, when the detection module 11 outputs a second level, it indicates that the smoke concentration in the kitchen is too high, and the alarm module 14 outputs an alarm signal according to the second level to provide timely alarm prompts.

[0048] In some embodiments, the smart cooktop 20 may have one or more solenoid valves 21, depending on the number of burners required in the smart cooktop 20, with one solenoid valve 21 for each burner.

[0049] Please see Figure 3 The smart stove 20 also includes an adjustment module 25, which is used to output an adjustment voltage to the solenoid valve 21 when the solenoid valve 21 is turned on, so that the solenoid valve 21 adjusts the opening degree according to the adjustment voltage.

[0050] When the solenoid valve 21 of the corresponding burner in the smart stove 20 is in the conducting state, the second controller 23 can output an adjustment signal to the adjustment module 25. The adjustment module 25 outputs a corresponding adjustment voltage to the solenoid valve 21 according to the adjustment signal. The solenoid valve 21 maintains an opening degree corresponding to the adjustment voltage, thereby realizing the adjustment of the opening degree of the solenoid valve 21, so as to control the firepower of the burner and avoid the firepower of the burner opening being too high, which may cause the pot to dry out or misfire.

[0051] Please see Figure 4In some embodiments, the smart stove 20 further includes a protection module 26, the number of which is the same as the number of burners. The protection module 26 is connected to the second controller 23; the protection module 26 detects the heating temperature of the corresponding burner and outputs a corresponding second electrical signal based on the heating temperature; the second controller 23 controls the switching state of the switch module 24 based on the second electrical signal to control the energization state of the solenoid valve 21, thereby preventing the burner temperature from becoming too high and achieving monitoring and protection of the burner.

[0052] As one embodiment, the first wireless communication module 13 and the second wireless communication module 22 can both be WIFI communication modules.

[0053] Please see Figure 5 In some embodiments, the switching module 24 includes a connection interface CN2, a switching unit 241, and a feedback unit 242. The switching unit 241 is connected to the connection interface CN2, which is connected to the solenoid valve 21. The feedback unit 242 is connected to the second controller 23. Each furnace head is provided with one solenoid valve 21, and each solenoid valve 21 is provided with one switching unit 241 and one feedback unit 242, to facilitate individual control and feedback of the state of each solenoid valve 21. The following embodiments use any one of the furnace heads as an example to illustrate the control process of the switching unit 241 and the feedback unit 242.

[0054] The second controller 23 outputs a high-level signal based on the first state control signal, and the switching unit 241 is turned on according to the high level, so that the solenoid valve 21 is energized and turned on, thus opening the gas passage of the smart stove 20. The second controller 23 outputs a low-level signal based on the second state control signal, and the switching unit 241 is turned off according to the low level, so that the solenoid valve 21 is de-energized, thus cutting off the gas passage of the smart stove 20. At the same time, the corresponding feedback unit 242 outputs a corresponding state feedback signal to the second controller 23 based on the high or low level output by the second controller 23, so as to provide feedback on the gas on / off status of the smart stove to the kitchen air conditioner.

[0055] Please see Figure 6 In some embodiments, the protection module 26 includes a thermocouple 261 and a voltage follower unit 262. The thermocouple 261 is connected to the voltage follower unit 262, and the voltage follower unit 262 is connected to the second controller. The thermocouple 261 is used to detect the heating temperature of the corresponding burner head and output a corresponding second electrical signal according to the heating temperature; the voltage follower unit 262 is used to output the second electrical signal to the second controller 23.

[0056] In this embodiment, the smart stove 20 is equipped with a corresponding thermocouple 261 for each burner. When the heating temperature of the burner rises to a certain value, the resistance of the corresponding thermocouple 261 decreases to a certain value, and then the voltage follower unit 262 outputs a low-level signal. The second controller detects that the burner is currently in a heating state based on the low-level signal. When the heating temperature of the burner drops below a certain value, the resistance of the corresponding thermocouple 261 rises to a certain value, and then the voltage follower unit 262 outputs a high-level signal. The second controller 23 detects that the burner is currently in an off state or a low-temperature heating state based on the high-level signal, thereby realizing effective monitoring of the working status of the burners in the smart stove 20.

[0057] Please see Figure 7 In some embodiments, the detection module 11 includes a detection unit 111 and a comparison unit 112, the detection unit 111 being connected to the comparison unit 112, and the comparison unit 112 being connected to the first controller 12.

[0058] The detection unit 111 detects the concentration of kitchen smoke and outputs a corresponding first electrical signal based on the smoke concentration. The comparison unit 112 compares the voltage value corresponding to the first electrical signal with a preset voltage. When the voltage value corresponding to the first electrical signal is not greater than the preset voltage, it outputs a first level, causing the first controller 12 to output a first state control signal based on the first level. Conversely, when the voltage value corresponding to the first electrical signal is greater than the preset voltage, the comparison unit 112 outputs a second level, causing the first controller 12 to output a second state control signal based on the second level, so as to facilitate subsequent control of the smart stove's operating state.

[0059] Please see Figure 8In one embodiment, the switching unit 241 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first switching transistor Q1, a second switching transistor Q2, a first diode D1, and a second diode D2. One end of the first resistor R1 is connected to the first terminal of the first switching transistor Q1 and the cathode of the first diode D1, and the other end of the first resistor R1 is connected to the second controller 23 (connected to the IO_RF1 signal terminal in this embodiment). One end of the second resistor R2 is connected to the first terminal of the first switching transistor Q1, and the cathode of the first diode D1 is connected to the cathode of the second diode D2. The other end of resistor R2 and the second end of the first switching transistor Q1 are both grounded. The third end of the first switching transistor Q1 is connected to the first end of the second switching transistor Q2 through the third resistor R3. One end of the fourth resistor R4 is connected to the first end of the second switching transistor Q2. The other end of the fourth resistor R4 is energized, and the second end of the second switching transistor Q2 is energized. The third end of the second switching transistor Q2 is connected to the connection interface CN2 (connected to the RF1 signal terminal in this embodiment). The negative terminal of the second diode D2 and one end of the fifth resistor R5 are both connected to the third end of the second switching transistor Q2. The positive terminal of the second diode D2 is grounded.

[0060] When the second controller 23 receives the first state control signal, its IO_RF1 signal terminal is high, the first switch Q1 and the second switch Q2 are turned on, and the solenoid valve 21 is energized through the connection interface CN2. When the second controller 23 receives the second state control signal, its IO_RF1 signal terminal is shortly low, the first switch Q1 is turned off, and the second switch Q2 is also turned off, thereby disconnecting the power supply to the solenoid valve 21, closing the solenoid valve 21, and cutting off the gas output.

[0061] In one embodiment, the feedback unit includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a third switch Q3. One end of the sixth resistor R6 is connected to the second controller 23 (connected to the IO_RF1 signal terminal in this embodiment). The other end of the sixth resistor R6 and one end of the seventh resistor R7 are both connected to the first end of the third switch Q3. The second end of the third switch Q3 is grounded. The third end of the third switch Q3 is connected to one end of the eighth resistor R8 and one end of the ninth resistor R9. The other end of the eighth resistor R8 is connected to the second controller 23 (connected to the IO_FJC signal terminal in this embodiment). The other end of the ninth resistor R9 is powered.

[0062] When IO_RF1 is low, the third switch Q3 is off, causing IO_FJC to be a high-level signal. The second controller 23 detects this high-level signal, indicating that the solenoid valve 21 is in the off state. When IO_RF1 is high, the third switch Q3 is on, causing IO_FJC to be a low-level signal. The second controller 23 detects this low-level signal, indicating that the solenoid valve 21 is in the on state. This allows the second controller 23 to obtain the status of the solenoid valve 21 and provide corresponding status feedback signals to the kitchen air conditioner 10.

[0063] As one embodiment, the adjustment module 25 includes a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a first capacitor C1, a second capacitor C2, a third diode D3, a fourth switch Q4, and a driver chip U3.

[0064] One end of the tenth resistor R10 is connected to the second controller 23 (connected to the IO_BLF1 signal terminal in this embodiment), and the other end of the tenth resistor R10 is connected to the first terminal of the fourth switch Q4. One end of the eleventh resistor R11 and one end of the first capacitor C1 are both connected to the first terminal of the fourth switch Q4. The other ends of the eleventh resistor R11, the first capacitor C1, and the fourth switch Q4 are all grounded. The third terminal of the fourth switch Q4 is connected to the fourth pin of the driver chip U3 through the twelfth resistor R12. One end of the thirteenth resistor R13 is connected to the fourth pin of the driver chip U3. The other end is powered; the negative terminal of the third diode D3 is connected to pin 5 of the driver chip U3, and the positive terminal of the third diode D3 is grounded; one end of the second capacitor C2 and pins 5 and 8 of the driver chip U3 are both connected to the connection interface CN2 (in this embodiment, connected to the BLF+ signal terminal); the other end of the second capacitor C2 is grounded; one end of the fourteenth resistor R14 and one end of the fifteenth resistor R15 are both connected to the connection interface CN2 (in this embodiment, connected to the BLF+ signal terminal); the other ends of the fourteenth resistor R14 and the fifteenth resistor R15 are both grounded; pins 1, 2, and 3 of the driver chip U3 are all powered.

[0065] The driver chip U3 can be AO4443. Of course, in other embodiments, a driver chip U3 with the same function can also be selected. This application does not limit this.

[0066] In this embodiment, the second controller 23 can output IO_BLF1 signals with different duty cycles, so that the driver chip U3 can output different adjustment voltages, so that the solenoid valve can maintain an opening degree corresponding to the adjustment voltage.

[0067] Please see Figure 9In one embodiment, the voltage follower unit 262 includes a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and an operational amplifier OP1. One end of the sixteenth resistor R16 is electrically connected to the thermocouple 261 (in this embodiment, it is connected to the L_RDO signal terminal). The other end of the sixteenth resistor R16 and one end of the seventeenth resistor R17 are both connected to the inverting input terminal of the operational amplifier OP1. One end of the third capacitor C3 is connected to one end of the sixteenth resistor R16, and the other end of the third capacitor C3 is grounded. The other end of resistor R17 is connected to the output of operational amplifier OP1. One end of resistor R18 is connected to the non-inverting input of operational amplifier OP1, and the other end of resistor R18 is grounded. One end of capacitor C4 and the power supply of operational amplifier OP1 are both energized. One end of resistor R19 is connected to the output of operational amplifier OP1, and the other end of resistor R19 is connected to the second controller 23 (in this embodiment, it is connected to the IO_RDO1 signal terminal). One end of capacitor C5 is connected to the second controller 23, and the other ends of capacitor C5 and capacitor C4 are grounded.

[0068] When the heating temperature of the burner head rises to a certain value, the resistance of the corresponding thermocouple 261 decreases to a certain value. At this time, the L_RDO signal terminal is a low-level signal. After isolation by the voltage follower unit 262, the second controller 23 detects that the IO_RDO1 signal terminal is a low-level signal. When the heating temperature of the burner head drops below a certain value, the resistance of the corresponding thermocouple 261 rises to a certain value. At this time, the L_RDO signal terminal is a high-level signal. After isolation by the voltage follower unit 262, the second controller 23 detects that the IO_RDO1 signal terminal is a high-level signal.

[0069] Please see Figure 10 As one embodiment, the detection unit 111 includes a smoke sensor U2. Pins 1, 3 and 2 of the smoke sensor U2 are all powered, pins 4 and 6 of the smoke sensor U2 are both connected to the comparison unit 112, and pin 5 of the smoke sensor U2 is grounded.

[0070] When the smoke sensor U2 detects smoke, pins 4 and 6 of the smoke sensor U2 will output a DC signal that changes with the ambient smoke concentration. The comparison unit 112 will compare the voltage value of the DC signal with a preset voltage in order to output the corresponding level signal.

[0071] As one embodiment, the comparison unit 112 includes an adjustable resistor RT and a comparator U1. The first fixed terminal of the adjustable resistor RT1 is energized, the second fixed terminal of the adjustable resistor RT1 is grounded, the variable terminal of the adjustable resistor RT1 is connected to the non-inverting input terminal of the comparator U1, the inverting input terminal of the comparator U1 is connected to the detection unit 111, and the output terminal of the comparator U1 is connected to the first controller 12.

[0072] The voltage value of the adjustable resistor RT serves as the preset voltage for comparator U1. When the voltage value of the first electrical signal is not greater than the preset voltage, comparator U1 outputs a first level signal, such as a high-level signal, which is obtained by the first controller 12 through connection port CN1. Conversely, when the voltage value of the first electrical signal is greater than the preset voltage, comparator U1 outputs a second level signal, such as a low-level signal, which is obtained by the first controller 12 through connection port CN1. The preset voltage value can be set by adjusting the adjustable resistor RT to adjust the detection sensitivity.

[0073] In one embodiment, the alarm module 14 includes a light-emitting diode (LED1). The positive terminal of LED1 is energized, and the negative terminal of LED1 is connected to the detection module 11. When the comparator U1 outputs a high-level signal, LED1 remains off. When the comparator U1 outputs a low-level signal, a voltage difference is formed between the positive and negative terminals of LED1, causing LED1 to light up and serve as an indicator.

[0074] In another embodiment, the alarm module 14 further includes a fifth switch Q5, a sixth switch Q6, and a buzzer BUZ1. The first end of the fifth switch Q5 is connected to the detection module 11, the second end of the fifth switch Q5 is energized, the third end of the fifth switch Q5 is connected to the first end of the sixth switch Q6, the second end of the sixth switch Q6 is grounded, the third end of the sixth switch Q6 is connected to pin 1 of the buzzer BUZ1, and pin 2 of the buzzer BUZ1 is energized.

[0075] When comparator U1 outputs a high level, the fifth switch Q5 is off, and correspondingly the sixth switch Q6 is off, so buzzer BUZ1 is not working. When comparator U1 outputs a low level signal, the fifth switch Q5 is on, which in turn turns on the sixth switch Q6, energizing buzzer BUZ1 to sound, thus serving as an alarm.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0077] The above provides a detailed description of the intelligent stove provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A kitchen appliance linkage control system, characterized in that, The kitchen appliance linkage control system includes kitchen air conditioning and smart cooktops: The kitchen air conditioner includes a detection module, a first controller, and a first wireless communication module connected in sequence. The detection module is used to detect the concentration of smoke in the kitchen and output a corresponding first electrical signal. The first controller is used to output a first state control signal through the first wireless communication module when the first electrical signal is not greater than a preset voltage. The smart stove includes a second wireless communication module, a second controller, a switch module, and a solenoid valve connected in sequence. The second controller is used to receive the first status control signal via the second wireless communication module, and control the switch module to turn on according to the first status control signal so as to connect with the solenoid valve; The smart stove also includes an adjustment module, which is connected to the second controller and the solenoid valve respectively. The adjustment module is used to output an adjustment voltage to the solenoid valve when the solenoid valve is turned on, so that the solenoid valve adjusts its opening degree according to the adjustment voltage.

2. The kitchen appliance linkage control system according to claim 1, characterized in that, The switching module includes a connection interface, a switching unit, and a feedback unit; both the switching unit and the feedback unit are connected to the second controller, and the switching unit is also connected to the solenoid valve through the connection interface; The switching unit is used to energize the solenoid valve according to the conduction control signal output by the second controller; The feedback unit outputs a corresponding status feedback signal to the second controller based on the conduction control signal output by the second controller.

3. The kitchen appliance linkage control system according to claim 2, characterized in that, The switching unit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first switching transistor, a second switching transistor, a first diode, and a second diode; One end of the first resistor is connected to the first terminal of the first switching transistor and the cathode of the first diode. The other end of the first resistor is connected to the second controller. One end of the second resistor is connected to the first terminal of the first switching transistor. The anode of the first diode, the other end of the second resistor, and the second terminal of the first switching transistor are all grounded. The third terminal of the first switching transistor is connected to the first terminal of the second switching transistor through the third resistor. One end of the fourth resistor is connected to the first terminal of the second switching transistor. The other end of the fourth resistor is energized. The second terminal of the second switching transistor is energized. The third terminal of the second switching transistor is connected to the connection interface. The cathode of the second diode and one end of the fifth resistor are both connected to the third terminal of the second switching transistor. The anode of the second diode is grounded.

4. The kitchen appliance linkage control system according to claim 3, characterized in that, The feedback unit includes a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a third switch. One end of the sixth resistor is connected to the second controller. The other end of the sixth resistor and one end of the seventh resistor are both connected to the first end of the third switch. The second end of the third switch is grounded. The third end of the third switch is connected to one end of the eighth resistor and one end of the ninth resistor. The other end of the eighth resistor is connected to the second controller. The other end of the ninth resistor is energized.

5. The kitchen appliance linkage control system according to any one of claims 2-4, characterized in that, The adjustment module includes a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a first capacitor, a second capacitor, a third diode, a fourth switching transistor, and a driver chip; One end of the tenth resistor is connected to the second controller, and the other end of the tenth resistor is connected to the first end of the fourth switch. One end of the eleventh resistor and one end of the first capacitor are both connected to the first end of the fourth switch. The other end of the eleventh resistor, the other end of the first capacitor, and the second end of the fourth switch are all grounded. The third end of the fourth switch is connected to the driver chip through the twelfth resistor. One end of the thirteenth resistor is connected to the driver chip, and the other end of the thirteenth resistor is energized. The negative terminal of the third diode is connected to the driver chip, and the positive terminal of the third diode is grounded. One end of the second capacitor and the driver chip are both connected to the connection interface, and the other end of the second capacitor is grounded. One end of the fourteenth resistor and one end of the fifteenth resistor are both connected to the connection interface, and the other ends of the fourteenth resistor and the fifteenth resistor are both grounded.

6. The kitchen appliance linkage control system according to claim 1, characterized in that, The smart stove also includes one or more burners and a protection module corresponding to the number of burners, the protection module being connected to the second controller; The protection module is used to detect the heating temperature of the corresponding burner head and output a corresponding second electrical signal according to the heating temperature; The second controller is used to control the switching state of the switching module according to the second electrical signal, so as to control the energization state of the solenoid valve.

7. The kitchen appliance linkage control system according to claim 6, characterized in that, The protection module includes a thermocouple and a voltage follower unit, wherein the thermocouple is connected to the voltage follower unit, and the voltage follower unit is connected to the second controller; The thermocouple is used to detect the heating temperature of the corresponding furnace head and output a corresponding second electrical signal according to the heating temperature; The voltage follower unit is used to output the second electrical signal to the second controller.

8. The kitchen appliance linkage control system according to claim 7, characterized in that, The voltage follower unit includes a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a third capacitor, a fourth capacitor, a fifth capacitor, and an operational amplifier; One end of the sixteenth resistor is electrically connected to the thermocouple. The other ends of the sixteenth resistor and one end of the seventeenth resistor are both connected to the inverting input of the operational amplifier. One end of the third capacitor is connected to one end of the sixteenth resistor, and the other end of the third capacitor is grounded. The other end of the seventeenth resistor is connected to the output of the operational amplifier. One end of the eighteenth resistor is connected to the non-inverting input of the operational amplifier, and the other end of the eighteenth resistor is grounded. One end of the fourth capacitor is connected to the power supply of the operational amplifier. One end of the nineteenth resistor is connected to the output of the operational amplifier, and the other end of the nineteenth resistor is connected to the second controller. One end of the fifth capacitor is connected to the second controller, and the other ends of the fifth capacitor and the other end of the fourth capacitor are grounded.

9. The kitchen appliance linkage control system according to claim 1, characterized in that, The detection module includes a detection unit and a comparison unit, the detection unit is connected to the comparison unit, and the comparison unit is also connected to the first controller; The detection unit is used to detect the concentration of kitchen smoke and output a corresponding first electrical signal based on the concentration of kitchen smoke. The comparison unit is used to compare the voltage value corresponding to the first electrical signal with the preset voltage. When the voltage value corresponding to the electrical signal is greater than the preset voltage, the first controller is controlled to output a second state control signal through the first wireless communication module.

10. The kitchen appliance linkage control system according to claim 9, characterized in that, The comparison unit includes an adjustable resistor and a comparator. The first fixed terminal of the adjustable resistor is energized, the second fixed terminal of the adjustable resistor is grounded, the variable terminal of the adjustable resistor is connected to the non-inverting input terminal of the comparator, the inverting input terminal of the comparator is connected to the detection unit, and the output terminal of the comparator is connected to the first controller.

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