Parameter detection control circuit and method for electric kettle and electric kettle

Abstract

The present invention relates to the technical field of detection circuits, and discloses a parameter detection control circuit, method and electric kettle applied to an electric kettle. The circuit includes a detection circuit and a signal transmission circuit. The received first level signal is transmitted to the detection circuit through the signal transmission circuit. The detection circuit detects the target parameter signal corresponding to the electric kettle according to the received first level signal and second level signal and transmits it to the signal transmission circuit. The target parameter signal is then processed by the signal transmission circuit, and the processed target signal is transmitted to a control device to determine the water level parameter and temperature parameter corresponding to the electric kettle. It can be seen that the implementation of the present invention can reduce the development cost of the electric kettle product while improving the accuracy and flexibility of detecting the water level and temperature in the electric kettle, which is conducive to realizing the automatic water supply function of the electric kettle, so as to improve the convenience and safety of the electric kettle.

Description

Technical Field

[0001] The present invention relates to the technical field of detection circuits, and in particular to a parameter detection control circuit and method applied to an electric kettle, and the electric kettle. Background Art

[0002] At present, most of the existing automatic water-filling electric kettles use a 6-ring interface coupler for electrical connection and data transmission, of which 3-ring interfaces are used to connect the live wire, neutral wire and ground wire of the heating element at the bottom of the kettle body, and the remaining interfaces can be used to connect a water level probe and a temperature sensor to achieve real-time data transmission. However, if the electric kettle is only equipped with one water level probe, it may not be able to detect problems such as overflow caused by excessive water filling or water shortage; if the electric kettle is equipped with two water level probes, it may be necessary to develop a 7-ring interface coupler, resulting in excessively high product development costs.

[0003] Therefore, it is particularly important to propose a technical solution that can reduce the development cost of electric kettle products while improving the accuracy and flexibility of parameter detection of electric kettles to realize the automatic water filling function of electric kettles, thereby improving the convenience and safety of use of electric kettles. Summary of the invention

[0004] The present invention provides a parameter detection control circuit and method for an electric kettle, and the electric kettle, which can reduce the development cost of the electric kettle product and improve the accuracy and flexibility of parameter detection of the electric kettle, so as to realize the automatic water filling function of the electric kettle, thereby improving the convenience and safety of use of the electric kettle.

[0005] In order to solve the above technical problems, the first aspect of the present invention discloses a parameter detection control circuit applied to an electric kettle, the circuit comprising a detection circuit and a signal transmission circuit, wherein:

[0006] The first end of the detection circuit is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit; the second end of the detection circuit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit; the first output end of the signal transmission circuit is used to electrically connect the first input end of the control device; the first input end of the signal transmission circuit is used to electrically connect the first output end of the control device; the second output end of the signal transmission circuit is used to electrically connect the second input end of the control device; the third end of the detection circuit is used to electrically connect the third end of the coupler and the second output end of the control device;

[0007] The signal transmission circuit is used to receive the first level signal transmitted by the control device and transmit the first level signal to the detection circuit;

[0008] The detection circuit is used to receive the second level signal transmitted by the control device, and according to the received level signal, control the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmit the target parameter signal to the signal transmission circuit; wherein, the level signal includes the first level signal and the second level signal; the target parameter signal includes a target water level voltage and a target temperature voltage; the target water level voltage includes a first water level voltage and / or a second water level voltage; wherein, the water level detection height corresponding to the first water level voltage is not equal to the water level detection height corresponding to the second water level voltage;

[0009] The signal transmission circuit is also used to perform signal processing on the received target parameter signal to obtain a target signal, and transmit the target signal to the control device so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle.

[0010] As an optional embodiment, in the first aspect of the present invention, the detection circuit is arranged in the kettle body of the electric kettle, and the detection circuit includes a water level detection circuit and a temperature detection circuit, wherein:

[0011] The first end of the water level detection circuit is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit, the second end of the water level detection circuit is used to electrically connect the third end of the coupler, the first end of the temperature detection circuit and the second output end of the control device, and the second end of the temperature detection circuit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit;

[0012] The water level detection circuit is used to control the water level detection module corresponding to the level signal in the water level detection circuit to detect the target water level voltage corresponding to the electric kettle according to the received level signal;

[0013] The temperature detection circuit is used to detect the target temperature voltage in the electric kettle.

[0014] As an optional implementation, in the first aspect of the present invention, the water level detection circuit includes a first water level detection module and a second water level detection module, wherein:

[0015] The first end of the first water level detection module is electrically connected to the first end of the second water level detection module, the first end of the coupler and the first end of the signal transmission circuit respectively; the second end of the first water level detection module is electrically connected to the second end of the second water level detection module, the first end of the temperature detection circuit, the third end of the coupler and the second output end of the control device respectively;

[0016] The first water level detection module is used to turn on the branch where the first water level detection module is located and detect the first water level voltage corresponding to the electric kettle when the first level signal is a low level signal and the second level signal is a high level signal;

[0017] The second water level detection module is used to turn on the branch where the second water level detection module is located and detect the second water level voltage corresponding to the electric kettle when the first level signal is a high level signal and the second level signal is a low level signal.

[0018] As an optional embodiment, in the first aspect of the present invention, the first water level detection module includes a first conduction control unit and a first water level sensing unit, and the second water level detection module includes a second conduction control unit and a second water level sensing unit, wherein:

[0019] The first end of the first conduction control unit is electrically connected to the first end of the second conduction control unit, the first end of the coupler and the first end of the signal transmission circuit respectively; the second end of the first conduction control unit is electrically connected to the first end of the first water level sensing unit; the second end of the second conduction control unit is electrically connected to the first end of the second water level sensing unit; the second end of the first water level sensing unit is electrically connected to the second end of the second water level sensing unit, the first end of the temperature detection circuit, the third end of the coupler and the second output end of the control device respectively.

[0020] As an optional implementation, in the first aspect of the present invention, the temperature detection circuit includes a temperature sensing unit, wherein:

[0021] The first end of the temperature sensing unit is used to electrically connect the third end of the coupler, the second end of the water level detection circuit and the second output end of the control device, and the second end of the temperature sensing unit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit.

[0022] As an optional implementation, in the first aspect of the present invention, the signal transmission circuit includes a first signal processing circuit and a second signal processing circuit, wherein:

[0023] The first end of the first signal processing circuit is electrically connected to the first end of the detection circuit and the first end of the coupler respectively; the second end of the first signal processing circuit is used to electrically connect to the first input end of the control device; the third end of the first signal processing circuit is electrically connected to the first end of the second signal processing circuit and the first output end of the control device respectively;

[0024] The second end of the second signal processing circuit is electrically connected to the second end of the detection circuit and the second end of the coupler respectively; the third end of the second signal processing circuit is used to electrically connect to the second input end of the control device.

[0025] As an optional implementation, in the first aspect of the present invention, the first signal processing circuit includes a first clamping unit and a first current limiting unit, wherein:

[0026] The first end of the first clamping unit is electrically connected to the first end of the first current limiting unit, the first end of the detection circuit and the first end of the coupler respectively; the second end of the first current limiting unit is used to electrically connect to the first input end of the control device; the second end of the first clamping unit is electrically connected to the first end of the second signal processing circuit and the first output end of the control device respectively;

[0027] The second signal processing circuit includes a second clamping unit and a second current limiting unit, wherein:

[0028] The first end of the second clamping unit is electrically connected to the second end of the first clamping unit and the first output end of the control device respectively; the second end of the second clamping unit is electrically connected to the first end of the second current limiting unit, the second end of the detection circuit and the second end of the coupler respectively; the second end of the second current limiting unit is used to electrically connect to the second input end of the control device.

[0029] As an optional implementation, in the first aspect of the present invention, the first signal processing circuit further includes a first filtering unit, wherein:

[0030] The first end of the first filter unit is electrically connected to the second end of the first current limiting unit and the first input end of the control device respectively; the second end of the first filter unit is used for grounding;

[0031] The second signal processing circuit further includes a second filtering unit, wherein:

[0032] The first end of the second filtering unit is electrically connected to the second end of the second current limiting unit and the second input end of the control device respectively; the second end of the second filtering unit is used for grounding.

[0033] The second aspect of the present invention discloses a parameter detection control method applied to an electric kettle, the method is applied to a parameter detection control circuit, and the circuit includes a detection circuit and a signal transmission circuit, wherein: the first end of the detection circuit is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit; the second end of the detection circuit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit; the first output end of the signal transmission circuit is used to electrically connect the first input end of the control device; the first input end of the signal transmission circuit is used to electrically connect the first output end of the control device; the second output end of the signal transmission circuit is used to electrically connect the second input end of the control device; the third end of the detection circuit is used to electrically connect the third end of the coupler and the second output end of the control device; the method includes:

[0034] The signal transmission circuit receives the first level signal transmitted by the control device, and transmits the first level signal to the detection circuit;

[0035] The detection circuit receives the second level signal transmitted by the control device, and according to the received level signal, controls the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmits the target parameter signal to the signal transmission circuit; wherein, the level signal includes the first level signal and the second level signal; the target parameter signal includes a target water level voltage and a target temperature voltage; the target water level voltage includes a first water level voltage and / or a second water level voltage; wherein, the water level detection height corresponding to the first water level voltage is not equal to the water level detection height corresponding to the second water level voltage;

[0036] The signal transmission circuit processes the received target parameter signal to obtain a target signal, and transmits the target signal to the control device so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle.

[0037] A third aspect of the present invention discloses an electric kettle, comprising an electric kettle body and any parameter detection control circuit for use in an electric kettle as disclosed in the first aspect.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] In the present invention, the parameter detection control circuit applied to the electric kettle receives the first level signal transmitted by the control device through the signal transmission circuit and transmits it to the detection circuit, and then receives the second level signal transmitted by the control device through the detection circuit, and according to the received level signal, controls the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmits the target parameter signal to the signal transmission circuit, and then processes the received target parameter signal through the signal transmission circuit, and transmits the processed target signal to the control device, so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle. It can be seen that the implementation of the present invention can realize the function of simultaneously detecting the high and low water levels and the temperature of the electric kettle by providing a circuit with a simple structure and easy to implement, and only needs to use the remaining 3-ring interfaces of the coupler without developing a coupler with a 7-ring interface, thereby reducing the development cost of the electric kettle product while improving the detection accuracy and detection flexibility of the voltage value corresponding to the parameters such as the water level and temperature in the electric kettle, which is beneficial to improving the detection accuracy and detection flexibility of the parameters such as the water level and temperature in the electric kettle, and is beneficial to controlling the electric kettle to automatically fill water based on the accurately detected water level parameters or temperature parameters, so as to realize the automatic water filling function of the electric kettle in an intelligent manner, which is beneficial to improving the intelligence level of the electric kettle, and is beneficial to improving the convenience and safety of use of the electric kettle, so as to improve the user experience of the electric kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 It is a structural schematic diagram of a parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention;

[0042] Figure 2 It is a structural schematic diagram of another parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention;

[0043] Figure 3 It is a structural schematic diagram of another parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention;

[0044] Figure 4 It is a structural schematic diagram of another parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention;

[0045] Figure 5 It is a schematic diagram of the working principle of a parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention;

[0046] Figure 6 It is a flow chart of a parameter detection and control method applied to an electric kettle disclosed in an embodiment of the present invention;

[0047] Figure 7 The invention discloses an electric kettle according to an embodiment of the invention. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that, unless otherwise clearly specified and limited, the term "electrical connection" in the specification and claims of the present invention and the above-mentioned drawings should be understood in a broad sense. For example, it can be a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. In addition, the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. The terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Embodiment 1

[0051] See also Figure 1 , Figure 1 1 is a schematic diagram of a parameter detection control circuit for an electric kettle disclosed in an embodiment of the present invention. The circuit can be applied to an electric kettle, or to other water boiling devices or cooking devices with automatic water supply function, which is not limited in the embodiment of the present invention. Figure 1 As shown, the parameter detection control circuit 10 may include a detection circuit 101 and a signal transmission circuit 102, wherein:

[0052] The first end of the detection circuit 101 is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit 102; the second end of the detection circuit 101 is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit 102; the first output end of the signal transmission circuit 102 is used to electrically connect the first input end of the control device; the first input end of the signal transmission circuit 102 is used to electrically connect the first output end of the control device; the second output end of the signal transmission circuit 102 is used to electrically connect the second input end of the control device; the third end of the detection circuit 101 is used to electrically connect the third end of the coupler and the second output end of the control device;

[0053] The signal transmission circuit 102 is used to receive the first level signal transmitted by the control device and transmit the first level signal to the detection circuit 101;

[0054] The detection circuit 101 is used to receive the second level signal transmitted by the control device, and according to the received level signal, control the detection module corresponding to the level signal in the detection circuit 101 to detect the target parameter signal corresponding to the electric kettle, and transmit the target parameter signal to the signal transmission circuit 102; wherein the level signal includes a first level signal and a second level signal; the target parameter signal includes a target water level voltage and a target temperature voltage; the target water level voltage includes a first water level voltage and / or a second water level voltage; wherein the water level detection height corresponding to the first water level voltage is not equal to the water level detection height corresponding to the second water level voltage;

[0055] The signal transmission circuit 102 is also used to process the received target parameter signal to obtain the target signal, and transmit the target signal to the control device so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle.

[0056] Optionally, the control device may be a controller or a control chip. Further, the control device may be a single-chip microcomputer, which is not limited in the embodiments of the present invention. When the control device is a single-chip microcomputer, the single-chip microcomputer has an AD detection function, that is, a function of converting analog signals into digital signals.

[0057] Optionally, the first end of the coupler can also be used to connect the positive pole of the power supply of the control device, the second end of the coupler can also be used to connect the data transmission end of the control device, and the third end of the coupler can also be used to connect the negative pole of the power supply of the control device, which is not limited in the embodiment of the present invention. Optionally, the coupler can be a 6-ring coupler, and the remaining 3 rings of the coupler can be used to connect the live wire, the neutral wire and the ground wire, which is not limited in the embodiment of the present invention.

[0058] Among them, the first level signal can be received through the first input end of the signal transmission circuit 102, the second level signal can be received through the third end of the detection circuit 101, the target water level voltage can be output to the control device through the first output end of the signal transmission circuit 102, and the target temperature voltage can be output to the control device through the second output end of the signal transmission circuit 102.

[0059] Among them, exemplarily, the water level detection height corresponding to the first water level voltage can be higher than the water level detection height corresponding to the second water level voltage, that is, the first water level voltage is a high water level voltage, and the second water level voltage is a low water level voltage; or, the water level detection height corresponding to the first water level voltage can be lower than the water level detection height corresponding to the second water level voltage, which is not limited to the embodiments of the present invention.

[0060] Among them, the water level parameter corresponding to the electric kettle may include the current water level height of the liquid contained in the electric kettle, and the temperature parameter corresponding to the electric kettle may include the current temperature of the kettle body of the electric kettle or the current water temperature of the liquid contained in the electric kettle, which is not limited in the embodiment of the present invention.

[0061] Optionally, after the control device receives the target signal, the control device may determine, based on the determined water level parameters, whether the current water level height of the liquid contained in the electric kettle is higher than or equal to a first water level threshold and the current water level height is lower than or equal to a second water level threshold; wherein the first water level threshold is lower than the second water level threshold;

[0062] When it is determined that the current water level is higher than or equal to the first water level threshold and the current water level is lower than or equal to the second water level threshold, the control device controls the electric water heater to operate normally;

[0063] When it is determined that the current water level is lower than the first water level threshold, the control device determines that the electric kettle is in a water shortage state, and controls the electric kettle to perform a processing operation corresponding to the water shortage state (for example, automatic water filling operation, dry-boiling alarm operation, etc.);

[0064] When it is determined that the current water level is higher than the second water level threshold, the control device determines that the electric kettle is in a water overflow state, and controls the electric kettle to perform processing operations corresponding to the water overflow state (for example, overflow alarm operations, etc.), which are not limited in this embodiment of the present invention.

[0065] It can be seen that the parameter detection control circuit applied to the electric kettle described in the embodiment of the present invention can receive the first level signal transmitted by the control device through the signal transmission circuit and transmit it to the detection circuit, and then receive the second level signal transmitted by the control device through the detection circuit, and according to the received level signal, control the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmit the target parameter signal to the signal transmission circuit, and then perform signal processing on the received target parameter signal through the signal transmission circuit, and transmit the processed target signal to the control device, so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle, and can provide a circuit with a simple structure and easy to implement, and By using only the remaining 3-ring interfaces of the coupler without developing a coupler with a 7-ring interface, the function of simultaneously detecting the high and low water levels and the temperature of the electric kettle can be realized, thereby reducing the development cost of the electric kettle product while improving the detection accuracy and flexibility of the voltage values ​​corresponding to parameters such as the water level and temperature in the electric kettle, which is beneficial to improving the detection accuracy and flexibility of parameters such as the water level and temperature in the electric kettle, and is beneficial to controlling the electric kettle to automatically fill water based on the accurately detected water level parameters or temperature parameters, so as to realize the automatic water filling function of the electric kettle intelligently, which is beneficial to improving the intelligence level of the electric kettle, and is beneficial to improving the convenience and safety of using the electric kettle, so as to improve the user experience of the electric kettle.

[0066] In an optional embodiment, optionally, Figure 2 FIG. 1 is a schematic diagram of another parameter detection control circuit for an electric kettle disclosed in an embodiment of the present invention. Figure 2 As shown, the detection circuit 101 can be arranged in the kettle body of the electric kettle, which is not limited in the embodiment of the present invention.

[0067] In this way, by setting the detection circuit inside the kettle body of the electric kettle, the detection accuracy of the water level voltage and the temperature voltage can be improved; at the same time, there is no need to set the control device inside the kettle body, thereby reducing the parameter detection cost.

[0068] In an alternative embodiment, Figure 3 is a structural schematic diagram of another parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention, such as Figure 3 As shown, the detection circuit 101 may include a water level detection circuit 1011 and a temperature detection circuit 1012, wherein:

[0069] The first end of the water level detection circuit 1011 is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit 102, the second end of the water level detection circuit 1011 is used to electrically connect the third end of the coupler, the first end of the temperature detection circuit 1012 and the second output end of the control device, and the second end of the temperature detection circuit 1012 is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit 102;

[0070] The water level detection circuit 1011 is used to control the water level detection module corresponding to the level signal in the water level detection circuit 1011 to detect the target water level voltage corresponding to the electric kettle according to the received level signal;

[0071] The temperature detection circuit 1012 is used to detect the target temperature voltage in the electric kettle.

[0072] It can be seen that by setting a water level detection circuit and a temperature detection circuit in the detection circuit, the pertinence and accuracy of parameter detection in the electric kettle can be improved, and by controlling the water level detection module for detection based on different level signals, the control accuracy and control flexibility of the water level voltage detection in the electric kettle can be improved, which is beneficial to improving the detection accuracy of the water level voltage and the temperature voltage.

[0073] In this optional embodiment, optionally, as Figure 3 As shown, the water level detection circuit 1011 may include a first water level detection module 10111 and a second water level detection module 10112, wherein:

[0074] The first end of the first water level detection module 10111 is electrically connected to the first end of the second water level detection module 10112, the first end of the coupler and the first end of the signal transmission circuit 102; the second end of the first water level detection module 10111 is electrically connected to the second end of the second water level detection module 10112, the first end of the temperature detection circuit 1012, the third end of the coupler and the second output end of the control device;

[0075] The first water level detection module 10111 is used to turn on the branch where the first water level detection module 10111 is located and detect the first water level voltage corresponding to the electric kettle when the first level signal is a low level signal and the second level signal is a high level signal;

[0076] The second water level detection module 10112 is used to turn on the branch where the second water level detection module 10112 is located and detect the second water level voltage corresponding to the electric kettle when the first level signal is a high level signal and the second level signal is a low level signal.

[0077] It can be seen that by setting the first water level detection module and the second water level detection module in the water level detection circuit, different water level detection modules can be turned on when different first level signals and second level signals are received, so as to realize the function of flexibly and efficiently controlling different water level detection modules to detect the water level in the electric kettle. The water level detection module can be flexibly selected to improve the control flexibility, control efficiency and control accuracy of the water level detection module, thereby further improving the control accuracy and control flexibility of the water level voltage detection in the electric kettle, so as to flexibly detect the high and low water level voltages in the electric kettle, thereby further improving the detection accuracy of the water level voltage, which is conducive to improving the accuracy of determining the water level height.

[0078] In this optional embodiment, optionally, as Figure 3 As shown, the first water level detection module 10111 includes a first conduction control unit 101111 and a first water level sensing unit 101112, and the second water level detection module 10112 includes a second conduction control unit 101121 and a second water level sensing unit 101122, wherein:

[0079] The first end of the first conduction control unit 101111 is electrically connected to the first end of the second conduction control unit 101121, the first end of the coupler and the first end of the signal transmission circuit 102 respectively; the second end of the first conduction control unit 101111 is electrically connected to the first end of the first water level sensing unit 101112; the second end of the second conduction control unit 101121 is electrically connected to the first end of the second water level sensing unit 101122; the second end of the first water level sensing unit 101112 is electrically connected to the second end of the second water level sensing unit 101122, the first end of the temperature detection circuit 1012, the third end of the coupler and the second output end of the control device respectively.

[0080] Among them, optionally, the components included in the water level sensing unit (the first water level sensing unit and the second water level sensing unit) may be a water level probe or a water level probe, or other sensors that can detect water level, which is not limited in the embodiment of the present invention.

[0081] Further optional, Figure 4 is a structural schematic diagram of another parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention, such as Figure 4 As shown, the first conduction control unit 101111 may include a first diode D1, and the first water level sensing unit 101112 may include a first water level probe T1, wherein:

[0082] The cathode of the first diode D1 is connected to the first end of the second conduction control unit 101121 and the first end of the coupler (such as Figure 4The loop 1 shown in the figure is electrically connected to the first end of the signal transmission circuit 102; the anode of the first diode D1 is electrically connected to the first end of the first water level probe T1; the second end of the first water level probe T1 is respectively connected to the second end of the second water level sensing unit 101122, the first end of the temperature detection circuit 1012, and the third end of the coupler (as shown in the figure). Figure 4 The ring 3 shown is electrically connected to the second output terminal of the control device.

[0083] Further optionally, the second conduction control unit 101121 may include a second diode D2, and the second water level sensing unit 101122 may include a second water level probe T2, wherein:

[0084] The anode of the second diode D2 is electrically connected to the cathode of the first diode D1, the first end of the coupler and the first end of the signal transmission circuit 102; the cathode of the second diode D2 is electrically connected to the first end of the second water level probe T2; the second end of the second water level probe T2 is electrically connected to the second end of the first water level probe T1, the first end of the temperature detection circuit 1012, the third end of the coupler and the second output end of the control device.

[0085] In this way, by setting a diode in the conduction control unit and a water level probe in the water level sensor unit, the conduction control and water level voltage detection functions required by the circuit can be realized based on simple components, which can save the circuit implementation cost while improving the conduction control efficiency and conduction control accuracy of the water level detection module, as well as improving the water level voltage detection efficiency and detection accuracy of the water level sensor unit.

[0086] It can be seen that by respectively providing a conduction control unit and a water level sensing unit in the first water level detection module and the second water level detection module, the conduction control flexibility and conduction control accuracy of the water level detection module can be improved, so as to further improve the selection flexibility, selection efficiency and selection accuracy of the water level detection module, thereby further improving the control accuracy and control flexibility of the water level voltage detection in the electric kettle, so as to flexibly detect the high and low water level voltages in the electric kettle, and the detection of the water level voltage based on the sensing unit can further improve the detection accuracy of the water level voltage.

[0087] In this optional embodiment, optionally, the temperature detection circuit 1012 includes a temperature sensing unit 10121, wherein:

[0088] The first end of the temperature sensing unit 10121 is used to electrically connect the third end of the coupler, the second end of the water level detection circuit 1011 and the second output end of the control device, and the second end of the temperature sensing unit 10121 is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit 102.

[0089] Optionally, the components included in the temperature sensing unit may be a temperature sensor or a thermistor, which is not limited in the embodiment of the present invention.

[0090] Further optional, such as Figure 4 As shown, the temperature sensing unit 10121 may include a thermistor RT1, wherein:

[0091] The first end of the thermistor RT1 is electrically connected to the second end of the first water level probe T1, the second end of the second water level probe T2, the third end of the coupler and the second output end of the control device respectively; the second end of the thermistor RT1 is used to electrically connect the second end of the coupler (such as Figure 4 The ring 2 shown in FIG. 2 ) and the second end of the signal transmission circuit 102 .

[0092] In this way, by providing a thermistor in the temperature sensing unit to realize the temperature voltage detection function, it is possible to save circuit implementation costs while improving the simplicity and efficiency of temperature voltage detection.

[0093] It can be seen that by setting a temperature sensing unit in the temperature detection circuit, the temperature detection function in the electric kettle can be realized through the temperature sensing unit, thereby improving the convenience and accuracy of detecting the temperature voltage in the electric kettle, which is beneficial to improving the accuracy of determining the temperature of the electric kettle.

[0094] In another optional embodiment, Figure 3 As shown, the signal transmission circuit 102 may include a first signal processing circuit 1021 and a second signal processing circuit 1022, wherein:

[0095] The first end of the first signal processing circuit 1021 is electrically connected to the first end of the detection circuit 101 and the first end of the coupler respectively; the second end of the first signal processing circuit 1021 is used to electrically connect to the first input end of the control device; the third end of the first signal processing circuit 1021 is electrically connected to the first end of the second signal processing circuit 1022 and the first output end of the control device respectively;

[0096] The second end of the second signal processing circuit 1022 is electrically connected to the second end of the detection circuit 101 and the second end of the coupler respectively; the third end of the second signal processing circuit 1022 is used to electrically connect to the second input end of the control device.

[0097] Among them, the first signal processing circuit 1021 can be used to process the received signal containing the target water level voltage to obtain a first target signal; the second signal processing circuit 1022 can be used to process the received signal containing the target temperature voltage to obtain a second target signal; wherein the target signal includes the first target signal and the second target signal.

[0098] It can be seen that by arranging the first signal processing circuit and the second signal processing circuit in the signal transmission circuit, the parameter signals that need to be output to the different data terminals of the control device can be processed and then output to the control device, and the parameter signals can be processed in a targeted manner, thereby improving the processing flexibility and accuracy of the parameter signals, which is beneficial to improving the output accuracy and output stability of the target signal, and is beneficial to improving the accuracy of the control device in determining the water level parameters and temperature parameters corresponding to the electric kettle.

[0099] In this optional embodiment, optionally, as Figure 3 As shown, the first signal processing circuit 1021 may include a first clamping unit 10211 and a first current limiting unit 10212, wherein:

[0100] The first end of the first clamping unit 10211 is electrically connected to the first end of the first current limiting unit 10212, the first end of the detection circuit 101, and the first end of the coupler respectively; the second end of the first current limiting unit 10212 is used to electrically connect to the first input end of the control device; the second end of the first clamping unit 10211 is electrically connected to the first end of the second signal processing circuit 1022 and the first output end of the control device respectively;

[0101] The second signal processing circuit 1022 includes a second clamping unit 10221 and a second current limiting unit 10222, wherein:

[0102] The first end of the second clamping unit 10221 is electrically connected to the second end of the first clamping unit 10211 and the first output end of the control device respectively; the second end of the second clamping unit 10221 is electrically connected to the first end of the second current limiting unit 10222, the second end of the detection circuit 101 and the second end of the coupler respectively; the second end of the second current limiting unit 10222 is used to electrically connect to the second input end of the control device.

[0103] Among them, the first clamping unit 10211 is used to clamp the signal that needs to be transmitted to the first input terminal of the control device in a high level state to improve the stability of the signal output; the first current limiting unit 10212 is used to limit the current size of the branch to prevent excessive current from burning components.

[0104] Among them, the second clamping unit 10221 is used to clamp the signal that needs to be transmitted to the second input terminal of the control device in a high level state to improve the stability of the signal output; the second current limiting unit 10222 is used to limit the current size of the branch to prevent excessive current from burning components.

[0105] Further optional, such as Figure 4As shown, the first clamping unit 10211 may include a first pull-up resistor R2, the first current limiting unit 10212 may include a first current limiting resistor R1, the second clamping unit 10221 may include a second pull-up resistor R3, and the second current limiting unit 10222 may include a second current limiting resistor R4, wherein:

[0106] The first end of the first pull-up resistor R2 is electrically connected to the first end of the first current limiting resistor R1, the positive electrode of the second diode D2, the negative electrode of the first diode D1 and the first end of the coupler respectively; the second end of the first current limiting resistor R1 is used to electrically connect to the first input end of the control device; the second end of the first pull-up resistor R2 is electrically connected to the first end of the second pull-up resistor R3 and the first output end of the control device respectively;

[0107] The second end of the second pull-up resistor R3 is electrically connected to the first end of the second current limiting resistor R4, the second end of the thermistor RT1 and the second end of the coupler respectively; the second end of the second current limiting resistor R4 is used to electrically connect to the second input end of the control device.

[0108] In this way, by setting a pull-up resistor in the clamping unit and a current limiting resistor in the current limiting unit, the clamping function and current limiting function required by the circuit can be realized based on simple components, which can save the circuit implementation cost while improving the signal clamping accuracy and clamping flexibility to improve the signal output stability, as well as improve the current limiting efficiency and limiting flexibility to improve the circuit safety.

[0109] It can be seen that by respectively setting a clamping unit and a current limiting unit in the first signal processing circuit and the second signal processing circuit, the output signal can be clamped in a high level state to improve the signal output stability, and the current in the circuit can be limited to prevent excessive current from burning components, thereby improving the safety of the circuit.

[0110] In this optional embodiment, optionally, as Figure 3 As shown, the first signal processing circuit 1021 may further include a first filtering unit 10213, wherein:

[0111] The first end of the first filtering unit 10213 is electrically connected to the second end of the first current limiting unit 10212 and the first input end of the control device respectively; the second end of the first filtering unit 10213 is used for grounding.

[0112] Optionally, the second signal processing circuit 1022 further includes a second filtering unit 10223, wherein:

[0113] The first end of the second filtering unit 10223 is electrically connected to the second end of the second current limiting unit 10222 and the second input end of the control device respectively; the second end of the second filtering unit 10223 is used for grounding.

[0114] Among them, the first filtering unit 10213 is used to filter the signal that needs to be transmitted to the first input end of the control device to further improve the quality of the output signal; the second filtering unit 10223 is used to filter the signal that needs to be transmitted to the second input end of the control device to further improve the quality of the output signal.

[0115] Further optional, such as Figure 4 As shown, the first filtering unit 10213 may include a first filtering capacitor C1, and the second filtering unit 10223 may include a second filtering capacitor C2, wherein:

[0116] The first end of the first filter capacitor C1 is electrically connected to the second end of the first current limiting resistor R1 and the first input end of the control device respectively; the second end of the first filter capacitor C1 is used for grounding;

[0117] The first end of the second filter capacitor C2 is electrically connected to the second end of the second current limiting resistor R4 and the second input end of the control device respectively; the second end of the second filter capacitor C2 is used for grounding.

[0118] In this way, by setting a filter capacitor in the filter unit, the filtering function required by the circuit can be realized based on simple components, which can save the circuit implementation cost while improving the signal filtering efficiency and filtering flexibility, and further improve the quality of the output signal.

[0119] It can be seen that by providing filtering units in the first signal processing circuit and the second signal processing circuit respectively, the noise of the output signal can be filtered, thereby further improving the comprehensiveness of signal processing, thereby improving the quality of the output signal, and further improving the stability and accuracy of the output signal.

[0120] In the embodiment of the present invention, Figure 4 Taking the circuit described above as an example, the working principle of the parameter detection control circuit applied to the electric kettle can be as follows Figure 5 As shown, Figure 5 1 is a schematic diagram of the working principle of a parameter detection control circuit applied to an electric kettle disclosed in an embodiment of the present invention. Specifically, the working principle of the circuit is as follows:

[0121] S1: Power on and complete port initialization, set ports CN1 and CN3 as signal input ports of a control device (e.g., a control microcontroller) (i.e., the first input terminal and the second input terminal of the control device, respectively), and use them for voltage detection; set ports CN2 and CN4 as signal output ports of the control device (i.e., the first output terminal and the second output terminal of the control device, respectively).

[0122] S2: When the control device outputs a high level to the parameter detection control circuit through port CN2 and outputs a low level to the parameter detection control circuit through port CN4, the control device reads the voltage values ​​through port CN1 and port CN3 respectively; wherein, since the diode D1 acts as a barrier at this time, the voltage value read by port CN1 at this time is the voltage value of the water level probe T2, which is used to determine the water level threshold value corresponding to the probe T2, and the voltage value read by port CN3 is the voltage value of the thermistor RT1, which is used to determine the temperature of the kettle body.

[0123] S3: When the control device outputs a low level to the parameter detection control circuit through port CN2 and outputs a high level to the parameter detection control circuit through port CN4, the control device reads the voltage values ​​through port CN1 and port CN3 respectively; wherein, since the diode D2 acts as a barrier at this time, the voltage value read by port CN1 at this time is the voltage value of the water level probe T1, which is used to determine the water level threshold value corresponding to the probe T1, and the voltage value read by port CN3 is the voltage value of the thermistor RT1, which is used to determine the temperature of the kettle body.

[0124] Embodiment 2

[0125] See also Figure 6 , Figure 6 The embodiment of the present invention is disclosed Figure 6 1 is a flow chart of a parameter detection and control method for an electric kettle disclosed in an embodiment of the present invention. Figure 6 The parameter detection control method applied to an electric kettle described can be applied to a parameter detection control circuit, which may include a detection circuit and a signal transmission circuit, wherein: the first end of the detection circuit is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit; the second end of the detection circuit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit; the first output end of the signal transmission circuit is used to electrically connect the first input end of the control device; the first input end of the signal transmission circuit is used to electrically connect the first output end of the control device; the second output end of the signal transmission circuit is used to electrically connect the second input end of the control device; the third end of the detection circuit is used to electrically connect the third end of the coupler and the second output end of the control device; further, the parameter detection control circuit can be applied to an electric kettle, and can also be applied to other water boiling devices or cooking devices with an automatic water supply function, which is not limited by the embodiments of the present invention. Figure 6 As shown, the parameter detection control method applied to the electric kettle may include the following operations:

[0126] 201. A signal transmission circuit receives a first level signal transmitted by a control device, and transmits the first level signal to a detection circuit.

[0127] 202. The detection circuit receives the second level signal transmitted by the control device, and according to the received level signal, controls the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmits the target parameter signal to the signal transmission circuit.

[0128] In an embodiment of the present invention, the level signal includes a first level signal and a second level signal; the target parameter signal includes a target water level voltage and a target temperature voltage; the target water level voltage includes a first water level voltage and / or a second water level voltage; wherein the water level detection height corresponding to the first water level voltage is not equal to the water level detection height corresponding to the second water level voltage.

[0129] 203. The signal transmission circuit processes the received target parameter signal to obtain a target signal, and transmits the target signal to the control device so that the control device determines the water level parameter and the temperature parameter corresponding to the electric kettle.

[0130] It can be seen that the method described in the embodiment of the present invention can receive the first level signal transmitted by the control device through the signal transmission circuit and transmit it to the detection circuit, and then receive the second level signal transmitted by the control device through the detection circuit, and according to the received level signal, control the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmit the target parameter signal to the signal transmission circuit, and then perform signal processing on the received target parameter signal through the signal transmission circuit, and transmit the target signal obtained after processing to the control device, so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle, which can be achieved through a simple structure and easy to implement The existing circuit can realize the function of simultaneously detecting the high and low water levels and the temperature of the electric kettle, thereby reducing the development cost of the electric kettle product while improving the detection accuracy and detection flexibility of the voltage value corresponding to the water level and temperature and other parameters in the electric kettle, which is beneficial to improving the detection accuracy and detection flexibility of the water level and temperature and other parameters in the electric kettle, and is beneficial to controlling the electric kettle to automatically fill water based on the accurately detected water level parameters or temperature parameters, so as to realize the automatic water filling function of the electric kettle intelligently, which is beneficial to improving the intelligence level of the electric kettle, and is beneficial to improving the convenience and safety of use of the electric kettle, so as to improve the user experience of the electric kettle.

[0131] In an optional embodiment, after the control device determines the water level parameter, the method may further include the following operations:

[0132] The control device can determine whether the current water level height of the liquid contained in the electric kettle is higher than or equal to the first water level threshold value and the current water level height is lower than or equal to the second water level threshold value according to the determined water level parameter; wherein the first water level threshold value is lower than the second water level threshold value;

[0133] When it is determined that the current water level is higher than or equal to the first water level threshold and the current water level is lower than or equal to the second water level threshold, the control device controls the electric water heater to operate normally;

[0134] When it is determined that the current water level is lower than the first water level threshold, the control device determines that the electric kettle is in a water shortage state, and controls the electric kettle to perform a processing operation corresponding to the water shortage state (for example, automatic water filling operation, dry-boiling alarm operation, etc.);

[0135] When it is determined that the current water level height reaches the second water level threshold, the control device determines that the electric kettle is in a water overflow state, and controls the electric kettle to execute a processing operation corresponding to the water overflow state (for example, an overflow alarm operation, etc.).

[0136] It can be seen that this optional embodiment can, when it is judged that the current water level is higher than or equal to the first water level threshold and the current water level is lower than or equal to the second water level threshold, the control device controls the electric water heater to operate normally; when it is judged that the current water level is lower than the first water level threshold, the control device determines that the electric kettle is in a water shortage state and controls the electric kettle to perform processing operations corresponding to the water shortage state; when it is judged that the current water level is greater than the second water level threshold, the control device determines that the electric kettle is in a water overflow state, and controls the electric kettle to perform processing operations corresponding to the water overflow state, which can improve the accuracy of the analysis of the water level situation in the electric kettle, thereby improving the accuracy of determining the state of the electric kettle, which is beneficial to improving the control accuracy of the electric kettle, and further beneficial to further improving the intelligence level of the electric kettle.

[0137] In an optional embodiment, the detection circuit includes a water level detection circuit and a temperature detection circuit;

[0138] The specific manner in which the detection circuit controls the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle according to the received level signal may include:

[0139] The water level detection circuit controls the water level detection module corresponding to the level signal in the water level detection circuit to detect the target water level voltage corresponding to the electric kettle according to the received level signal;

[0140] The temperature detection circuit detects a target temperature voltage in the electric kettle.

[0141] It can be seen that this optional embodiment can improve the pertinence and accuracy of parameter detection in the electric kettle by setting a water level detection circuit and a temperature detection circuit in the detection circuit, and can improve the control accuracy and control flexibility of water level voltage detection in the electric kettle by controlling the water level detection module for detection based on different level signals, thereby helping to improve the detection accuracy of the water level voltage and the temperature voltage.

[0142] In this optional embodiment, optionally, the water level detection circuit includes a first water level detection module and a second water level detection module;

[0143] The specific manner in which the water level detection circuit controls the water level detection module corresponding to the level signal in the water level detection circuit to detect the target water level voltage corresponding to the electric kettle according to the received level signal may include:

[0144] When the first level signal is a low level signal and the second level signal is a high level signal, the first water level detection module turns on the branch where the first water level detection module is located, and detects the first water level voltage corresponding to the electric kettle;

[0145] When the first level signal is a high level signal and the second level signal is a low level signal, the second water level detection module turns on the branch where the second water level detection module is located, and detects the second water level voltage corresponding to the electric kettle.

[0146] It can be seen that this optional embodiment can also set the first water level detection module and the second water level detection module in the water level detection circuit, and can turn on different water level detection modules when receiving different first level signals and second level signals, so as to realize the function of flexibly and efficiently controlling different water level detection modules to detect the water level in the electric kettle, and can flexibly select the water level detection module to improve the control flexibility, control efficiency and control accuracy of the water level detection module, thereby further improving the control accuracy and control flexibility of the water level voltage detection in the electric kettle, so as to flexibly detect the high and low water level voltages in the electric kettle, thereby further improving the detection accuracy of the water level voltage, which is conducive to improving the accuracy of determining the water level height.

[0147] Embodiment 3

[0148] See also Figure 7 , Figure 7 1 is a schematic diagram of the structure of an electric kettle disclosed in an embodiment of the present invention, and the electric kettle includes any parameter detection control circuit applied to the electric kettle as in Embodiment 1. The functions that can be realized by the electric kettle include but are not limited to being able to flexibly and accurately detect the water level and temperature corresponding to the electric kettle. It should be noted that for a detailed description of the parameter detection control circuit applied to the electric kettle, please refer to the specific description of the relevant content in Embodiment 1, which will not be repeated in this embodiment.

[0149] It can be seen that the implementation Figure 7 The described electric kettle can receive the first level signal transmitted by the control device through the signal transmission circuit and transmit it to the detection circuit, and then receive the second level signal transmitted by the control device through the detection circuit, and according to the received level signal, control the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmit the target parameter signal to the signal transmission circuit, and then perform signal processing on the received target parameter signal through the signal transmission circuit, and transmit the processed target signal to the control device, so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle. It can provide a circuit with a simple structure and is easy to implement, and only needs to use the remaining 3 rings of the coupler The function of simultaneously detecting the high and low water levels and the temperature of the electric kettle can be realized without developing a coupler with a 7-ring interface, thereby reducing the development cost of the electric kettle product while improving the detection accuracy and detection flexibility of the voltage value corresponding to the water level and temperature and other parameters in the electric kettle, which is beneficial to improving the detection accuracy and detection flexibility of the water level and temperature and other parameters in the electric kettle, which is beneficial to controlling the electric kettle to automatically fill water based on the accurately detected water level parameters or temperature parameters, so as to realize the automatic water filling function of the electric kettle intelligently, which is beneficial to improving the intelligence level of the electric kettle, and thus is beneficial to improving the convenience and safety of using the electric kettle, so as to improve the user experience of the electric kettle.

[0150] The above is a detailed introduction to a parameter detection control circuit, method and electric kettle for electric kettles disclosed in an embodiment of the present invention. The principle and implementation mode of the present invention are explained in this article using specific embodiments. However, the above preferred embodiments are not used to limit the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and the scope of application without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A parameter detection control circuit for an electric kettle, characterized in that: The circuit comprises a detection circuit and a signal transmission circuit, wherein: The first end of the detection circuit is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit; the second end of the detection circuit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit; the first output end of the signal transmission circuit is used to electrically connect the first input end of the control device; the first input end of the signal transmission circuit is used to electrically connect the first output end of the control device; the second output end of the signal transmission circuit is used to electrically connect the second input end of the control device; the third end of the detection circuit is used to electrically connect the third end of the coupler and the second output end of the control device; The signal transmission circuit is used to receive the first level signal transmitted by the control device and transmit the first level signal to the detection circuit; The detection circuit is used to receive the second level signal transmitted by the control device, and according to the received level signal, control the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle, and transmit the target parameter signal to the signal transmission circuit; wherein the level signal includes the first level signal and the second level signal; the target parameter signal includes a target water level voltage and a target temperature voltage; the target water level voltage includes a first water level voltage or a second water level voltage; wherein the water level detection height corresponding to the first water level voltage is not equal to the water level detection height corresponding to the second water level voltage; The signal transmission circuit is also used to perform signal processing on the received target parameter signal to obtain a target signal, and transmit the target signal to the control device so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle.

2. The parameter detection control circuit for an electric kettle according to claim 1, characterized in that: The detection circuit includes a water level detection circuit and a temperature detection circuit, wherein: The first end of the water level detection circuit is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit, the second end of the water level detection circuit is used to electrically connect the third end of the coupler, the first end of the temperature detection circuit and the second output end of the control device, and the second end of the temperature detection circuit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit; The water level detection circuit is used to control the water level detection module corresponding to the level signal in the water level detection circuit to detect the target water level voltage corresponding to the electric kettle according to the received level signal; The temperature detection circuit is used to detect the target temperature voltage in the electric kettle.

3. The parameter detection control circuit for an electric kettle according to claim 2, characterized in that: The water level detection circuit includes a first water level detection module and a second water level detection module, wherein: The first end of the first water level detection module is electrically connected to the first end of the second water level detection module, the first end of the coupler and the first end of the signal transmission circuit respectively; the second end of the first water level detection module is electrically connected to the second end of the second water level detection module, the first end of the temperature detection circuit, the third end of the coupler and the second output end of the control device respectively; The first water level detection module is used to turn on the branch where the first water level detection module is located and detect the first water level voltage corresponding to the electric kettle when the first level signal is a low level signal and the second level signal is a high level signal; The second water level detection module is used to turn on the branch where the second water level detection module is located and detect the second water level voltage corresponding to the electric kettle when the first level signal is a high level signal and the second level signal is a low level signal.

4. The parameter detection control circuit for an electric kettle according to claim 3, characterized in that: The first water level detection module includes a first conduction control unit and a first water level sensing unit, and the second water level detection module includes a second conduction control unit and a second water level sensing unit, wherein: The first end of the first conduction control unit is electrically connected to the first end of the second conduction control unit, the first end of the coupler and the first end of the signal transmission circuit respectively; the second end of the first conduction control unit is electrically connected to the first end of the first water level sensing unit; the second end of the second conduction control unit is electrically connected to the first end of the second water level sensing unit; the second end of the first water level sensing unit is electrically connected to the second end of the second water level sensing unit, the first end of the temperature detection circuit, the third end of the coupler and the second output end of the control device respectively.

5. The parameter detection control circuit for an electric kettle according to claim 2, characterized in that: The temperature detection circuit comprises a temperature sensing unit, wherein: The first end of the temperature sensing unit is used to electrically connect the third end of the coupler, the second end of the water level detection circuit and the second output end of the control device, and the second end of the temperature sensing unit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit.

6. The parameter detection control circuit for an electric kettle according to any one of claims 1 to 5, characterized in that: The signal transmission circuit comprises a first signal processing circuit and a second signal processing circuit, wherein: The first end of the first signal processing circuit is electrically connected to the first end of the detection circuit and the first end of the coupler respectively; the second end of the first signal processing circuit is used to electrically connect to the first input end of the control device; the third end of the first signal processing circuit is electrically connected to the first end of the second signal processing circuit and the first output end of the control device respectively; The second end of the second signal processing circuit is electrically connected to the second end of the detection circuit and the second end of the coupler respectively; the third end of the second signal processing circuit is used to electrically connect to the second input end of the control device.

7. The parameter detection control circuit for an electric kettle according to claim 6, characterized in that: The first signal processing circuit includes a first clamping unit and a first current limiting unit, wherein: The first end of the first clamping unit is electrically connected to the first end of the first current limiting unit, the first end of the detection circuit and the first end of the coupler respectively; the second end of the first current limiting unit is used to electrically connect to the first input end of the control device; the second end of the first clamping unit is electrically connected to the first end of the second signal processing circuit and the first output end of the control device respectively; The second signal processing circuit includes a second clamping unit and a second current limiting unit, wherein: The first end of the second clamping unit is electrically connected to the second end of the first clamping unit and the first output end of the control device respectively; the second end of the second clamping unit is electrically connected to the first end of the second current limiting unit, the second end of the detection circuit and the second end of the coupler respectively; the second end of the second current limiting unit is used to electrically connect to the second input end of the control device.

8. The parameter detection control circuit for an electric kettle according to claim 7, characterized in that: The first signal processing circuit further includes a first filtering unit, wherein: The first end of the first filter unit is electrically connected to the second end of the first current limiting unit and the first input end of the control device respectively; the second end of the first filter unit is used for grounding; The second signal processing circuit further includes a second filtering unit, wherein: The first end of the second filtering unit is electrically connected to the second end of the second current limiting unit and the second input end of the control device respectively; the second end of the second filtering unit is used for grounding.

9. A parameter detection and control method applied to an electric kettle, characterized in that: The method is applied to a parameter detection control circuit, and the circuit includes a detection circuit and a signal transmission circuit, wherein: the first end of the detection circuit is used to electrically connect the first end of the coupler and the first end of the signal transmission circuit; the second end of the detection circuit is used to electrically connect the second end of the coupler and the second end of the signal transmission circuit; the first output end of the signal transmission circuit is used to electrically connect the first input end of a control device; the first input end of the signal transmission circuit is used to electrically connect the first output end of the control device; the second output end of the signal transmission circuit is used to electrically connect the second input end of the control device; the third end of the detection circuit is used to electrically connect the third end of the coupler and the second output end of the control device; the method includes: The signal transmission circuit receives the first level signal transmitted by the control device, and transmits the first level signal to the detection circuit; The detection circuit receives the second level signal transmitted by the control device, and controls the detection module corresponding to the level signal in the detection circuit to detect the target parameter signal corresponding to the electric kettle according to the received level signal, and transmits the target parameter signal to the signal transmission circuit; wherein the level signal includes the first level signal and the second level signal; the target parameter signal includes a target water level voltage and a target temperature voltage; the target water level voltage includes a first water level voltage or a second water level voltage; wherein the water level detection height corresponding to the first water level voltage is not equal to the water level detection height corresponding to the second water level voltage; The signal transmission circuit processes the received target parameter signal to obtain a target signal, and transmits the target signal to the control device so that the control device determines the water level parameter corresponding to the electric kettle and the temperature parameter corresponding to the electric kettle.

10. An electric kettle, characterized in that: The electric kettle comprises an electric kettle body and a parameter detection control circuit applied to the electric kettle as claimed in any one of claims 1 to 8.

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