Circuit system of induction cooker appliance with sound / light cue

Abstract

The utility model discloses an induction cooker appliance circuit system with sound / light prompt, which comprises an induction cooker circuit module arranged on an induction cooker and a heated appliance circuit module arranged on a heated appliance, and the induction cooker circuit module comprises a heating wire coil and a power supply circuit connected with the heating wire coil; the heated appliance circuit module comprises an induction coil, an induction module and a sound / light module, the induction coil and the heating wire coil are oppositely arranged, the induction module and the sound / light module are connected to the induction coil, and the sound / light module comprises at least one sound production unit and / or at least one light emitting unit; a magnetic field formed by the positive heating wire coil can enable the induction coil to generate induced electromotive force, the induced electromotive force is used for supplying power to the acoustic / optical module, and when the induction module is triggered, the acoustic / optical module sends out a set acoustic / optical signal to remind a user of the current working condition of the heated appliance, so that the user can conveniently and accurately judge the working state of the heated appliance; and the use of the induction cooker heating appliance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of induction cooker application technology, and in particular to a circuit system for an induction cooker appliance with sound / light prompts. Background Technology

[0002] Using an induction cooker to heat cookware, kettles, and other appliances can effectively achieve indirect heating and separate water and electricity. However, the induction elements of current induction cookers are generally only located on the cooktop, which differs from the actual working conditions inside the heated appliance. This causes a certain delay or error in the induction cooker's perception of the actual working conditions inside the appliance. Therefore, the reminders and warnings issued by the induction cooker based on its cooktop's induction elements are unreliable, affecting normal use and even potentially leading to safety accidents. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a circuit system for an induction cooker with audible / visual cues, capable of providing relatively accurate audible / visual cues based on the operating conditions of the heated appliance.

[0004] According to a first aspect of the present invention, a circuit system for an induction cooker appliance with sound / light cues includes an induction cooker circuit module disposed in the induction cooker and a heating appliance circuit module disposed in the heating appliance. The induction cooker circuit module includes a heating coil and a power supply circuit connected to the heating coil. The heating appliance circuit module includes an induction coil, an induction module, and a sound / light module. The induction coil is disposed opposite to the heating coil. The induction module and the sound / light module are connected to the induction coil. The sound / light module includes at least one sound-emitting unit and / or at least one light-emitting unit. The induction module includes at least one induction unit.

[0005] The circuit system of the induction cooker appliance with sound / light prompts according to the embodiments of the present utility model has at least the following beneficial effects: During normal use, the magnetic field formed by the heating coil can induce an electromotive force in the induction coil, which is used to power the sound / light module. When the induction module is triggered, the sound / light module emits a set sound / light signal to remind the user of the current working condition of the heated appliance, so that the user can accurately judge the working status of the heated appliance, such as temperature, pressure, dry burning, water level, etc., and facilitate the use of the induction cooker appliance.

[0006] According to some embodiments of the present invention, the sensing unit is a normally open inductive switch, and the normally open inductive switch is connected in series with the inductive coil and the sound / light module.

[0007] According to some embodiments of the present invention, the sensing unit is a normally open inductive switch, and the sensing module includes at least two normally open inductive switches, which are connected in parallel and then connected in series with the inductive coil and the sound / light module.

[0008] According to some embodiments of the present invention, the sensing unit is a normally closed inductive switch, and the sensing module includes at least two normally closed inductive switches, which are connected in series with the inductive coil and the sound / light module.

[0009] According to some embodiments of the present invention, the sensing unit is a normally open inductive switch, the sensing module includes at least two normally open inductive switches, each normally open inductive switch is connected in series with at least one sound-emitting unit and / or at least one light-emitting unit to form a prompting circuit, and multiple prompting circuits are connected in parallel to the inductive coil.

[0010] According to some embodiments of this utility model, the sensing unit is a temperature control switch, a thermistor, a dry-burning protection switch, a water level switch, a steam switch, a pressure switch, a deformation switch, a limit switch, or an electronic switch circuit.

[0011] According to some embodiments of the present invention, the sensing unit is a temperature control switch, the sensing module includes at least two temperature control switches with different temperature control temperatures, and the sound / light module includes a sound-emitting unit and / or a light-emitting unit configured one-to-one with the temperature control switch. The temperature control switch can control the switching of the sound-emitting unit and / or the light-emitting unit configured with it.

[0012] According to some embodiments of this utility model, the heated appliance circuit module further includes a voltage regulator circuit and a voltage comparator. The induction coil is connected to the voltage regulator circuit and can output a power supply voltage VCC. The induction unit is an induction variable resistor. The power supply voltage VCC is connected to the non-inverting input terminal of the voltage comparator via a first voltage divider circuit, which includes the induction variable resistor. The power supply voltage VCC is connected to the inverting input terminal of the voltage comparator via a second voltage divider circuit. The power supply voltage VCC is connected to the sound / light module through a control on / off circuit. The output terminal of the voltage comparator is connected to the control on / off circuit to control the on / off state of the sound / light module.

[0013] According to some embodiments of the present invention, the circuit module of the heated appliance is disposed inside the housing of the heated appliance.

[0014] According to some embodiments of the present invention, the circuit module of the heated appliance is located at the bottom of the heated appliance. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a control principle diagram of the circuit system of an induction cooker appliance with sound / light prompts according to an embodiment of the present utility model.

[0017] Figure 2 This is a circuit diagram of a circuit system using a single inductive switch, according to an embodiment of the present invention.

[0018] Figure 3 This is one of the circuit diagrams of a circuit system employing multiple inductive switches according to an embodiment of the present invention;

[0019] Figure 4 The second circuit diagram is a circuit system employing multiple inductive switches according to an embodiment of this utility model;

[0020] Figure 5 The third circuit diagram of the circuit system employing multiple inductive switches is an embodiment of this utility model.

[0021] Figure 6 This is a circuit diagram of the circuit system using a voltage comparator in an embodiment of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the heating appliance circuit module in an embodiment of the present invention when it is disposed in the housing of the heating appliance;

[0023] Figure 8 This is a schematic diagram of the structure of the heating appliance circuit module in an embodiment of the present invention when it is located at the bottom of the heating appliance.

[0024] Figure label:

[0025] The heated appliance consists of a main body 900, a cavity 901, a shell 910, and a circuit board assembly 920. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] The following is for reference. Figures 1 to 8 The circuit system of an induction cooker appliance with sound / light cues according to an embodiment of the present invention is described.

[0031] like Figure 1 As shown, the circuit system of the induction cooker appliance with sound / light prompts according to an embodiment of the present invention includes an induction cooker circuit module disposed in the induction cooker and a heating appliance circuit module disposed in the heating appliance. The induction cooker circuit module includes a heating coil and a power supply circuit connected to the heating coil. The heating appliance circuit module includes an induction coil, an induction module and a sound / light module. The induction coil is disposed opposite to the heating coil. The induction module and the sound / light module are connected to the induction coil. The sound / light module includes at least one sound-emitting unit and / or at least one light-emitting unit. The induction module includes at least one induction unit.

[0032] During normal use, the magnetic field generated by the heating coil can induce an electromotive force in the induction coil. The induced electromotive force is used to power the sound / light module. When the induction module is triggered, the sound / light module emits a set sound / light signal to remind the user of the current working condition of the heated appliance, so that the user can accurately judge the working status of the heated appliance, such as temperature, pressure, dry burning, water level, etc., which facilitates the use of the induction cooker heating appliance.

[0033] Specifically, the sensing module includes at least one sensing unit, which can be a temperature control switch / thermometer, a dry-burn protection switch, a water level switch, a steam switch, a pressure switch, a deformation switch, a limit switch, or an electronic switch circuit, etc., to issue prompt light / electric signals based on changes in the state of temperature, dry burning, water level, steam, pressure, deformation of the set object, and travel of the set object.

[0034] In some embodiments of this utility model, the heated appliance may be a kettle, a pot (such as a pressure cooker, a frying pan, etc.).

[0035] In some embodiments of this utility model, the sound-generating unit may be a loudspeaker, a buzzer, or the like.

[0036] In some embodiments of this utility model, the light-emitting unit may be a light-emitting diode, a display panel, a bulb, etc.

[0037] In some embodiments of this utility model, the sensing unit is a normally open inductive switch, which is connected in series with the inductive coil and the sound / light module. When the normally open inductive switch is triggered, it closes, and the induced electromotive force generated by the inductive coil powers the sound / light module. The sound / light module then emits a set sound / light signal to achieve the set prompting effect.

[0038] Specifically, such as Figure 2 As shown, the heating coil IH corresponds to the position of the induction coil L. When the heating coil IH is working, it can generate an electromotive force in the induction coil L. When the normally open induction switch K is triggered, it closes. The induced electromotive force generated by the induction coil L powers the sound unit B and / or the light-emitting unit VD. The sound unit B and / or the light-emitting unit VD emits the set sound / light signal.

[0039] It is understood that in some embodiments of this utility model, in Figure 2 The normally open induction switch can also be replaced with a normally closed induction switch. When the induction cooker is working normally, the induced electromotive force generated by the induction coil powers the sound / light module. The sound / light module continuously emits the set sound / light signal. When the normally closed induction switch is triggered, it opens, the sound / light module is powered off, and the sound / light signal disappears, which can also achieve the corresponding prompting effect.

[0040] In some embodiments of this utility model, the sensing unit is a normally open inductive switch, and the sensing module includes at least two normally open inductive switches. The at least two normally open inductive switches are connected in parallel and then connected in series with the induction coil and the sound / light module. When one or more of the normally open inductive switches are triggered, they close. The induced electromotive force generated by the induction coil powers the sound / light module, and the sound / light module emits a set sound / light signal to achieve the set prompting effect.

[0041] Specifically, such as Figure 3 As shown, the heating coil IH corresponds to the position of the induction coil L. When the heating coil IH is working, it can generate an electromotive force in the induction coil L. When one or more normally open induction switches K are triggered, they close. The induced electromotive force generated by the induction coil L powers the sound unit B and / or the light-emitting unit VD. The sound unit B and / or the light-emitting unit VD emits the set sound / light signal.

[0042] In some embodiments of this utility model, the sensing unit is a normally closed inductive switch, and the sensing module includes at least two normally closed inductive switches. The at least two normally closed inductive switches are connected in series with the inductive coil and the sound / light module. When one or more normally open inductive switches are triggered, they open, the sound / light module is de-energized, and the set sound / light signal of the sound / light module disappears, thereby achieving the set prompting effect.

[0043] Specifically, such as Figure 4 As shown, the heating coil IH corresponds to the position of the induction coil L. When the heating coil IH is working, it can generate an electromotive force in the induction coil L. During normal operation, the normally closed induction switch K is closed, and the induced electromotive force generated by the induction coil L powers the sound unit B and / or the light-emitting unit VD. The sound unit B and / or the light-emitting unit VD emits a set sound / light signal. When one or more normally open induction switches K are triggered, they open, the sound unit B and / or the light-emitting unit VD are de-energized, and the set sound / light signal of the sound unit B and / or the light-emitting unit VD disappears.

[0044] In some embodiments of this utility model, the sensing unit is a normally open inductive switch, and the sensing module includes at least two normally open inductive switches. Each normally open inductive switch is connected in series with at least one sound-emitting unit and / or at least one light-emitting unit to form a prompting circuit. Multiple prompting circuits are connected in parallel to the induction coil. When a normally open inductive switch is triggered, it closes, and the corresponding sound-emitting unit and / or light-emitting unit is energized. The corresponding sound-emitting unit and / or light-emitting unit emits a corresponding light / electric prompting signal.

[0045] Specifically, such as Figure 5 As shown, the heating coil IH corresponds to the position of the induction coil L. When the heating coil IH is working, it can generate an electromotive force in the induction coil L. During normal operation, the normally open induction switch K is open. When a normally open induction switch K is triggered and closed (such as when the set temperature, steam condition, pressure condition, etc. are reached), the corresponding sound unit B and / or light-emitting unit VD is energized, and the corresponding sound unit B and / or light-emitting unit VD emits a corresponding light / electric prompt signal.

[0046] In some embodiments of this utility model, a corresponding sound / light receiving unit may also be configured in the control circuit of the induction cooker, so that the control circuit can control the operation of the heating coil according to the light / electric prompt signal emitted by the sound unit and / or light-emitting unit.

[0047] Specifically, such as Figure 5 As shown, the control circuit of the induction cooker includes a control unit MCU. The control unit MCU is connected to a microphone corresponding to the sound-emitting unit and / or a photoresistor corresponding to the light-emitting unit. The control unit MCU controls the operation of the heating coil according to the obtained light / electric prompt signal.

[0048] It is understood that in some embodiments of this utility model, the heating appliance circuit module is configured with a signal transmitting module, and the induction cooker circuit module is configured with a signal receiving module corresponding to the signal transmitting module. The signal receiving module is connected to the control circuit of the induction cooker. The control circuit of the induction cooker can control the operation of the heating coil according to the signal received by the signal receiving module. When the sensing unit is triggered, the signal transmitting module sends a set signal, and the signal receiving module receives the signal. The control circuit of the induction cooker controls the operation of the heating coil according to the signal received by the signal receiving module, thereby realizing the automatic control of the induction cooker.

[0049] Specifically, the signal transmitting module can be a mutual inductance transmitting coil, a radio transmitting unit, etc., and the signal receiving module can be a corresponding mutual inductance receiving coil, a radio receiving unit, etc.

[0050] In some embodiments of this utility model, the sensing unit is a temperature control switch, a thermistor, a dry-burning protection switch, a water level switch, a steam switch, a pressure switch, a deformation switch, a limit switch, or an electronic switch circuit, for detecting the set operating conditions of the heated appliance.

[0051] In some embodiments of this utility model, the sensing unit is a temperature control switch, the sensing module includes at least two temperature control switches with different temperature control temperatures, and the sound / light module includes a sound-emitting unit and / or a light-emitting unit configured one-to-one with the temperature control switch. The temperature control switch can control the switching of the sound-emitting unit and / or light-emitting unit configured with it. Multiple temperature control switches with different temperature control temperatures, together with independent sound-emitting units and / or light-emitting units, can emit different light / electric signals at different temperatures.

[0052] Specifically, multiple temperature control switches can be like Figure 5 The circuit diagram shown depicts normally open sensor switches K as temperature control switches. Each switch is independently configured with a sound unit and / or a light-emitting unit via parallel circuits. Each temperature control switch has a different temperature. For example, if the heated appliance is a kettle, three temperature control switches are configured with temperature control values ​​of 100℃, 85℃, and 45℃, corresponding to a buzzer sound unit, a blue light-emitting unit, and a green light-emitting unit. When the kettle temperature reaches 100℃, the corresponding temperature control switch closes, the buzzer sound unit is powered on, and a buzzer sound is emitted to remind the user. When the temperature drops to 85℃, the corresponding temperature control switch closes, and the blue light-emitting unit emits a blue light to remind the user. When the temperature drops to 45℃, the corresponding temperature control switch closes, and the green light-emitting unit emits a green light to remind the user.

[0053] In some embodiments of this utility model, the heating appliance circuit module further includes a voltage regulator circuit and a voltage comparator. The induction coil is connected to the voltage regulator circuit and can output a power supply voltage VCC. The induction unit is an induction variable resistor. The power supply voltage VCC is connected to the non-inverting input terminal of the voltage comparator via a first voltage divider circuit, which includes the induction variable resistor. The power supply voltage VCC is connected to the inverting input terminal of the voltage comparator via a second voltage divider circuit. The power supply voltage VCC is connected to the sound / light module via a control on / off circuit. The output terminal of the voltage comparator is connected to the control on / off circuit to control the on / off state of the sound / light module. When the resistance value of the induction variable resistor changes, it affects the voltage at the non-inverting input terminal of the voltage comparator. The voltage comparator compares the voltages at the non-inverting input terminal and the inverting input terminal, and outputs a control signal at the output terminal of the voltage comparator to control the operation of the sound / light module.

[0054] like Figure 6 As shown, in some embodiments of this utility model, the heating appliance circuit module includes a voltage comparison switch circuit, employing an LM393 voltage comparator, and a thermistor RT as the inductive variable resistor. The induction coil L is configured correspondingly to the heating coil IH. A power supply voltage VCC is generated through a voltage regulator circuit. The light-emitting unit VD serves as the light signal transmitter. The power supply voltage VCC is connected to the output terminal of the LM393 and the input terminal of the light-emitting unit VD through a voltage divider resistor R4, forming a control on / off loop. The thermistor RT and resistor R1 form a first voltage divider circuit. The input terminal of resistor R1 is connected to the power supply voltage VCC, and the output terminal of resistor R1 is connected to the thermistor RT and the non-inverting input terminal of the LM393, respectively. Resistors R2 and R3 are connected in a... The second voltage divider circuit is formed. The input terminal of resistor R2 is connected to the power supply voltage VCC, and the output terminal of resistor R2 is connected to resistor R3 and the inverting input terminal of LM393. Thermistor RT is set in the corresponding heated appliance. When the temperature of the heated appliance changes (or reaches the set temperature), the resistance value of thermistor RT changes, affecting the voltage of the non-inverting input terminal of LM393. When the voltage of the non-inverting input terminal of LM393 is higher than the voltage of the inverting input terminal of LM393, the output terminal of LM393 outputs a high-level voltage. When the voltage of the non-inverting input terminal of LM393 is lower than the voltage of the inverting input terminal of LM393, the output terminal of LM393 outputs a low-level voltage, thereby controlling the light emission of the light-emitting unit VD.

[0055] Of course, in the specific implementation process, other switching circuits can also be used for electronic switching circuits, which will not be described in detail here.

[0056] In some embodiments of this utility model, the circuit module of the heated appliance is disposed inside the housing of the heated appliance to conceal the circuit module.

[0057] Specifically, such as Figure 7As shown, the side wall of the heated appliance body 900 is provided with a housing 910, and the housing 910 has a space for accommodating the circuit board assembly 920 or electronic components.

[0058] In some embodiments of this utility model, the circuit module of the heated appliance is located at the bottom of the heated appliance to conceal the circuit module.

[0059] Specifically, such as Figure 8 As shown, the bottom of the heated appliance body 900 is provided with a cavity 901 for accommodating the circuit board assembly 920 or electronic components.

[0060] In some embodiments of this utility model, the heated appliance is a kettle, and the sensing unit can be a temperature control switch, a thermistor, a dry-boil protection switch, a water level switch, a steam switch, etc., employing methods such as... Figures 2 to 5 The circuit diagram shown can be configured to control the operation of the induction cooker by adjusting the kettle's temperature, dry-boiling status, water level, and steam levels, thereby improving the safety and reliability of using the kettle on the induction cooker.

[0061] In some embodiments of this utility model, the heated appliance is a pressure cooker, and the sensing unit can be a temperature control switch, a thermistor, a dry-burning protection switch, a pressure switch, etc., employing methods such as... Figures 2 to 5 The circuit diagram shown can be configured to control the operation of the induction cooker by adjusting the temperature, dry burning, and pressure of the pressure cooker, thereby improving the safety and reliability of using the pressure cooker on the induction cooker.

[0062] Of course, this invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A circuit system for an induction cooker appliance with sound / light cues, characterized in that, include: An induction cooker circuit module is provided in an induction cooker, the induction cooker circuit module including a heating coil and a power supply circuit connected to the heating coil; A circuit module for a heated appliance is provided on the heated appliance. The circuit module includes an induction coil, an induction module, and a sound / light module. The induction coil is disposed opposite to the heating coil. The induction module and the sound / light module are connected to the induction coil. The sound / light module includes at least one sound-emitting unit and / or at least one light-emitting unit. The induction module includes at least one induction unit.

2. The circuit system of the induction cooker appliance with sound / light prompts according to claim 1, characterized in that, The sensing unit is a normally open inductive switch, which is connected in series with the inductive coil and the sound / light module.

3. The circuit system of the induction cooker appliance with sound / light prompts according to claim 1, characterized in that, The sensing unit is a normally open inductive switch, and the sensing module includes at least two normally open inductive switches. The at least two normally open inductive switches are connected in parallel and then connected in series with the induction coil and the sound / light module.

4. The circuit system of the induction cooker appliance with sound / light prompts according to claim 1, characterized in that, The sensing unit is a normally closed inductive switch, and the sensing module includes at least two normally closed inductive switches, which are connected in series with the inductive coil and the sound / light module.

5. The circuit system of the induction cooker appliance with sound / light prompts according to claim 1, characterized in that, The sensing unit is a normally open inductive switch, and the sensing module includes at least two normally open inductive switches. Each normally open inductive switch is connected in series with at least one sound-emitting unit and / or at least one light-emitting unit to form a prompting circuit, and multiple prompting circuits are connected in parallel to the inductive coil.

6. The circuit system of the induction cooker appliance with audible / visual cues according to any one of claims 1 to 5, characterized in that, The sensing unit is a temperature control switch, a thermistor, a dry-burning protection switch, a water level switch, a steam switch, a pressure switch, a deformation switch, a limit switch, or an electronic switch circuit.

7. The circuit system of the induction cooker appliance with sound / light prompts according to claim 1, characterized in that, The sensing unit is a temperature control switch, and the sensing module includes at least two temperature control switches with different temperature control temperatures. The sound / light module includes a sound-emitting unit and / or a light-emitting unit configured one-to-one with the temperature control switch. The temperature control switch can control the switching of the sound-emitting unit and / or the light-emitting unit configured with it.

8. The circuit system of the induction cooker appliance with sound / light prompts according to claim 1, characterized in that, The heated appliance circuit module also includes a voltage regulator circuit and a voltage comparator. The induction coil is connected to the voltage regulator circuit and can output a power supply voltage VCC. The sensing unit is a variable resistor. The power supply voltage VCC is connected to the non-inverting input terminal of the voltage comparator via a first voltage divider circuit, which includes the variable resistor. The power supply voltage VCC is connected to the inverting input terminal of the voltage comparator via a second voltage divider circuit. The power supply voltage VCC is connected to the sound / light module via a control on / off circuit. The output terminal of the voltage comparator is connected to the control on / off circuit to control the on / off state of the sound / light module.

9. The circuit system of the induction cooker appliance with sound / light prompts according to claim 1, characterized in that, The circuit module of the heated appliance is located inside the housing of the heated appliance.

10. The circuit system of the induction cooker appliance with sound / light cues according to claim 1, characterized in that, The circuit module of the heated appliance is located at the bottom of the heated appliance.

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