Induction cooker control circuit and induction cooker

Abstract

The utility model relates to the technical field of induction cookers, in particular to an induction cooker control circuit and an induction cooker, which comprise a power supply, a protection module, a conversion module, a high-frequency output module, a heating module, a control module, a storage battery, a heat dissipation module and a temperature sensing module, the storage battery is used for storing electric energy, the heat dissipation module is used for dissipating heat of the induction cooker, the temperature sensing module is used for detecting the operation temperature of the induction cooker, the water sensing module is used for detecting whether liquid exists on the cooker panel or not, the water sensing module is connected with the control module, the control module is connected with the heating module, and whether liquid exists on the cooker panel or not is judged through the water sensing module; and a cooling request is sent to the control module, and the heating module is controlled to reduce the output power, so that the problem that the soup in the cookware continuously scatters to the top of the induction cooker due to high temperature, and potential safety hazards easily occur is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of induction cookers, in particular to an induction cooker control circuit and an induction cooker. Background Art

[0002] The induction cooker is based on the phenomenon of electromagnetic induction. It uses alternating current to pass through a coil to generate an alternating magnetic field with a constantly changing direction. Eddy current will appear inside the conductor in the alternating magnetic field. The Joule heating effect of the eddy current will cause the conductor to heat up, thereby achieving heating.

[0003] However, in the actual use of the induction cooker, when cooking ingredients by stewing, the boiling soup may overflow from the pot due to the high temperature of the cooking ingredients, which is prone to safety hazards. The high temperature of the stove panel will quickly dry and solidify the soup, forming dirt that is difficult to be contaminated. Usually, after the induction cooker is used, the power supply cannot be disconnected immediately. The power supply needs to be maintained connected, and a cooling fan is provided to dissipate the residual heat inside the induction cooker, otherwise its life will be affected. In view of this, we propose an induction cooker control circuit and an induction cooker. Utility Model Content

[0004] The utility model aims to provide an induction cooker control circuit and an induction cooker, which solve the problem that boiling soup overflows from the pot due to the overly high temperature of the cooking ingredients, which easily causes a safety hazard, and the high temperature of the stove panel will cause the soup to be quickly dried and solidified, making it difficult to be contaminated.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Induction cooker control circuit and induction cooker, including power supply, protection module, conversion module, high-frequency output module, heating module, control module, battery, heat dissipation module, temperature sensing module; water sensing module;

[0007] The power supply is used to provide alternating current to the circuit of the device;

[0008] The protection module is used to cut off the current when the circuit current is abnormal;

[0009] A conversion module for converting AC power into DC power;

[0010] High-frequency output module, used to convert direct current into high-frequency alternating current;

[0011] A heating module, used for generating a high-frequency alternating magnetic field;

[0012] Batteries, used to store electrical energy;

[0013] A heat dissipation module, used for dissipating heat from the induction cooker;

[0014] The temperature sensing module is used to detect the operating temperature of the induction cooker;

[0015] Water sensing module, used to detect whether there is liquid on the furnace panel;

[0016] The control module is used to receive the temperature sensing module, the temperature sensing module detection information, the heating module and the heat dissipation module.

[0017] The water sensing module is connected to the control module, and the control module is connected to the heating module. The water sensing module is used to determine whether there is liquid on the stove panel, and the control module is used to intelligently control whether the heating module reduces the output power. The water sensing module is an infrared scattering rain sensor. When there is liquid on the outer surface of the stove panel, the light incident on the stove panel is partially scattered, and the light in the receiving tube becomes less after reflection. The greater the amount of liquid, the less light is reflected back. By comparing the received light intensity with that when the windshield is dry, it can be concluded whether there is liquid on the stove panel at this time, and a request for cooling is sent to the control module to control the heating module to reduce the output power, so as to avoid the soup in the pot from continuously scattering to the top of the induction cooker due to high temperature, which is prone to safety hazards.

[0018] Preferably, the high-frequency output module and the control module are used to control the output power, and are divided into intelligent control and manual control, so as to facilitate the operation and control of the cooking mode and the output power through the manually controlled touch panel.

[0019] Preferably, the conversion module is connected to a power source, the conversion module is connected to a high-frequency output module, and the heating module is connected to a high-frequency output module, and is used to convert current into heat for cooking.

[0020] Preferably, the temperature sensing module is connected to the control module, and the control module is connected to the heat dissipation module. The temperature sensing module is used to collect temperature information of the induction cooker and feed it back to the control module. The control module intelligently controls the start or stop of the heat dissipation module, and the temperature inside the induction cooker is collected by the electronic thermometer in the temperature sensing module. The control module intelligently controls the start of the fan in the heat dissipation module to cool down the temperature. When the temperature drops to a specified temperature, the heat dissipation module automatically stops, thereby reducing power consumption while ensuring the service life of the equipment.

[0021] Preferably, the battery is connected to a power source, and the battery is connected to a heat dissipation module. The electric energy stored in the battery is used to provide electric energy to the heat dissipation module when the power is disconnected. By setting the battery, the fan in the heat dissipation module can be provided with electric energy when the power is disconnected, so as to achieve the purpose of delayed shutdown.

[0022] Preferably, the protection module is arranged on the line of the input and output current of the power supply, and is used to cut off the current when the circuit current is abnormal, and promptly separate the part affected by the fault to protect other equipment from the short circuit fault, thereby playing a role in protecting the safe operation of the circuit.

[0023] By means of the above technical solution, the utility model provides an induction cooker control circuit and an induction cooker, which have at least the following beneficial effects:

[0024] 1. The water sensing module of the utility model is an infrared scattering rain sensor. When there is liquid on the outer surface of the stove panel, the light incident on the stove panel is partially scattered, and the light of the receiving tube becomes less after reflection. The greater the amount of liquid, the less light is reflected back. By comparing the received light intensity with that when the windshield is dry, it can be concluded whether there is liquid on the stove panel at this time, and a request for cooling is sent to the control module to control the heating module to reduce the output power, so as to avoid the soup in the pot from continuously scattering to the top of the induction cooker due to high temperature, which is prone to safety hazards.

[0025] 2. The utility model provides a battery to provide power to the fan in the heat dissipation module when the power is disconnected, so as to achieve the purpose of delayed shutdown, so as to avoid the situation where the residual heat in the induction cooker cannot be dissipated in time due to the fan stopping due to power cut off, thus affecting the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0027] Figure 1 It is a schematic diagram of the principle block diagram of the utility model. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] Induction cooker control circuit and induction cooker, such as Figure 1As shown, it includes an induction cooker control circuit and an induction cooker, including a power supply, a protection module, a conversion module, a high-frequency output module, a heating module, a control module, a battery, a heat dissipation module, a temperature sensing module and a water sensing module. The power supply is used to provide alternating current to the circuit of the device. The protection module is used to cut off the current when the circuit current is abnormal. The conversion module is used to convert the alternating current into direct current. The high-frequency output module is used to convert the direct current into high-frequency alternating current. The heating module is used to generate a high-frequency alternating magnetic field. The battery is used to store electric energy. The heat dissipation module is used to dissipate heat from the induction cooker. The temperature sensing module is used to detect the operating temperature of the induction cooker. The water sensing module is used to detect whether there is liquid on the stove panel. The control module is used to receive the temperature sensing module and the temperature sensing module detection information, the heating module and the heat dissipation module. The water sensing module is connected to the control module, and the control module is connected to the heating module. The water sensing module is used to judge whether there is liquid on the stove panel, and the control module is used to intelligently control The control module controls whether the heating module reduces the output power. The water sensing module is an infrared scattering rain sensor. When there is liquid on the outer surface of the furnace panel, the light incident on the furnace panel is partially scattered, and the light of the receiving tube becomes less after reflection. The larger the amount of liquid, the less light is reflected back. By comparing the received light intensity with the windshield when it is dry, it can be concluded whether there is liquid on the furnace panel at this time. A request for cooling is sent to the control module to control the heating module to reduce the output power to avoid the soup in the pot from continuously scattering to the top of the induction cooker due to high temperature, which is prone to safety hazards. The high-frequency output module and the control module are used to control the output power. They are divided into intelligent control and manual control to facilitate the operation of the manually controlled touch panel to control the cooking method and output power. The conversion module is connected to the power supply, the conversion module is connected to the high-frequency output module, and the heating module is connected to the high-frequency output module to convert current into heat for cooking.

[0031] In this embodiment, the alternating current is converted into direct current by the rectifier in the conversion module, and then the direct current is converted into high-frequency alternating current exceeding the audio frequency by the transformer in the high-frequency output module. The high-frequency alternating current is applied to the flat hollow spiral induction heating coil in the heating module, thereby generating a high-frequency alternating magnetic field, whose magnetic lines of force penetrate the ceramic table of the stove and act on the metal pot. Strong eddy currents are generated in the cooking pot body due to electromagnetic induction. When the eddy currents overcome the internal resistance of the pot body and flow, the conversion of electrical energy into thermal energy is completed. The generated Joule heat is the heat source for cooking. The water sensing module is an infrared scattering rain sensor. When there is liquid on the outer surface of the stove panel, the light incident on the stove panel is partially scattered, and the light of the receiving tube becomes less after reflection. The larger the amount of liquid, the less light is reflected back. By comparing the received light intensity with the dry windshield, it can be concluded whether there is liquid on the stove panel at this time, and a request for cooling is sent to the control module to control the heating module to reduce the output power, so as to avoid the soup in the pot from continuously scattering to the top of the induction cooker due to high temperature, which is prone to safety hazards.

[0032] Example 2

[0033] like Figure 1 As shown, the temperature sensing module is connected to the control module, and the control module is connected to the heat dissipation module. The temperature sensing module is used to collect temperature information of the induction cooker and feed it back to the control module. The control module intelligently controls the start or stop of the heat dissipation module. The temperature in the induction cooker is collected by the electronic thermometer in the temperature sensing module. The control module intelligently controls the start of the fan in the heat dissipation module to cool down. When the temperature drops to a specified temperature, the heat dissipation module automatically stops to reduce power consumption while ensuring the service life of the equipment. The battery is connected to the power supply, and the battery is connected to the heat dissipation module. The electric energy stored in the battery is used to provide electric energy for the heat dissipation module when the power is disconnected. By setting the battery, the fan in the heat dissipation module can be provided with electric energy when the power is disconnected to achieve delay. The purpose of shutdown is to avoid the situation where the residual heat in the induction cooker cannot be dissipated in time due to the fan stopping due to cutting off the power supply, which affects the service life of the equipment. The protection module is set on the line line of the input and output current on the power supply, and is used to cut off the current when the circuit current is abnormal. Overload protection: when the current in the circuit exceeds the rated current of the fuse in the protection module, the fuse will automatically blow to protect the circuit from being damaged by current overload. Short circuit protection: when a short circuit occurs in the circuit, the fuse will quickly and automatically disconnect the circuit to prevent the circuit from being damaged due to the fault, thereby isolating the faulty part. When a short circuit fault occurs in the power system, the fuse can separate the affected part of the fault in time to protect other equipment from the impact of the short circuit fault, thereby protecting the safe operation of the circuit.

[0034] In this embodiment, the temperature inside the induction cooker is collected by the electronic thermometer in the temperature sensing module, and the control module intelligently controls the fan in the heat dissipation module to start for cooling. When the temperature drops to a specified temperature, the heat dissipation module automatically stops, thereby reducing power consumption while ensuring the service life of the equipment. In addition, a battery is provided to provide power for the fan in the heat dissipation module when the power is disconnected, so as to achieve the purpose of delayed shutdown, thereby avoiding the situation where the residual heat in the induction cooker cannot be dissipated in time due to the fan stopping due to power cut-off, thereby affecting the service life of the equipment.

[0035] When the induction cooker control circuit and the induction cooker of the utility model are in use, the alternating current is converted into direct current by the rectifier in the conversion module, and then the direct current is converted into high-frequency alternating current exceeding the audio frequency by the transformer in the high-frequency output module. The high-frequency alternating current is applied to the flat hollow spiral induction heating coil in the heating module, thereby generating a high-frequency alternating magnetic field, whose magnetic lines of force penetrate the ceramic table of the stove and act on the metal pot. Strong eddy currents are generated in the cooking pot body due to electromagnetic induction. When the eddy currents overcome the internal resistance of the pot body and flow, the conversion of electrical energy into thermal energy is completed. The generated Joule heat is the heat source for cooking. The water sensing module is an infrared scattering rain sensor. When there is liquid on the outer surface of the stove panel, the light incident on the stove panel is partially scattered, and the light of the receiving tube after reflection is The amount of liquid increases, the less light is reflected back. By comparing the light intensity received when the windshield is dry, it can be concluded whether there is liquid on the stove panel at this time, and a cooling request is sent to the control module to control the heating module to reduce the output power. The temperature in the induction cooker is collected through the electronic thermometer in the temperature sensing module, and the control module intelligently controls the fan in the heat dissipation module to start and cool down. When the temperature drops to the specified temperature, the heat dissipation module automatically stops to reduce power consumption while ensuring the service life of the equipment. The battery can be set to provide power for the fan in the heat dissipation module when the power is disconnected, so as to achieve the purpose of delayed shutdown, so as to avoid the residual heat in the induction cooker from being unable to be dissipated in time due to the fan stopping when the power is cut off.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Induction cooker control circuit, characterized in that, Including power supply, protection module, conversion module, high-frequency output module, heating module, control module, battery, heat dissipation module, temperature sensing module, water sensing module; The power supply is used to provide alternating current to the circuit of the device; The protection module is used to cut off the current when the circuit current is abnormal; A conversion module for converting AC power into DC power; High-frequency output module, used to convert direct current into high-frequency alternating current; A heating module, used for generating a high-frequency alternating magnetic field; Batteries, used to store electrical energy; A heat dissipation module, used for dissipating heat from the induction cooker; The temperature sensing module is used to detect the operating temperature of the induction cooker; Water sensing module, used to detect whether there is liquid on the furnace panel; A control module, used for receiving the temperature sensing module, the temperature sensing module detection information, the heating module and the heat dissipation module; The water sensing module is connected to the control module, and the control module is connected to the heating module. The water sensing module is used to determine whether there is liquid on the furnace panel, and the control module is used to intelligently control whether the heating module reduces output power.

2. The induction cooker control circuit according to claim 1, characterized in that: The heating module and the control module are used to control the output power, which is divided into intelligent control and manual control.

3. The induction cooker control circuit according to claim 1, characterized in that: The conversion module is connected to a power source, the conversion module is connected to a high-frequency output module, and the heating module is connected to the high-frequency output module, and is used to convert current into heat for cooking.

4. The induction cooker control circuit according to claim 1, characterized in that: The temperature sensing module is connected to the control module, and the control module is connected to the heat dissipation module. The temperature sensing module is used to collect temperature information of the induction cooker and feed it back to the control module, and the control module intelligently controls the start or stop of the heat dissipation module.

5. The induction cooker control circuit according to claim 1, characterized in that: The storage battery is connected to a power source, and the storage battery is connected to a heat dissipation module. The electric energy stored in the storage battery is used to provide electric energy for the heat dissipation module when the power source is disconnected.

6. The induction cooker control circuit according to claim 1, characterized in that: The protection module is arranged on the line of the input and output current of the power supply, and is used to cut off the current when the circuit current is abnormal.

7. An induction cooker, comprising the induction cooker control circuit according to any one of claims 1 to 6.

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