A new type of controllable heat power cooker heating control device

Abstract

The application relates to the technical field of power regulation, and discloses a novel controllable heat power cooking utensil heating control device, which comprises a control module, a silicon controlled board, a power module, a heating tube one, a heating tube two and a display module; the controller is connected with the input end of the silicon controlled board; the first output end of the silicon controlled board is connected with one end of the heating tube one; the second output end of the silicon controlled board is connected with the heating tube two; the controller and the display module are connected with the power module. The novel controllable heat power cooking utensil heating control device can conveniently adjust the output power, the heating power can be arbitrarily adjusted between 0 and 100%, the effect of adjusting the power and frequency conversion energy saving is achieved, the waiting time of customers is saved, the damage of the cooking utensil itself is reduced, the control part adopts an independent circuit and can separately control different heating tubes, and the overall heating power can be improved by using two heating tubes.

Description

Technical Field

[0001] This invention relates to the field of power regulation technology, and in particular to a novel cookware heating control device with controllable thermal power. Background Technology

[0002] Cooking utensils are appliances and containers used for cooking and boiling water. Both cooking and boiling require heating, which can be done via gas, electricity, or other methods. Electric cooking utensils typically have a heating element at the bottom to heat the underside. Generally, electric cooking utensils have a fixed heating power and are widely used in breakfast noodle shops. When customer traffic is high, the utensils are always on and heating. When customer traffic decreases, to save on electricity costs, the utensils are usually turned off and heating is stopped, only to be turned back on when needed. However, this causes customers to wait a long time, and the frequent on-and-off operation causes significant wear and tear on the utensils themselves. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a new type of cookware heating control device with controllable heat power, which makes it easy to adjust the output power. The heating power can be adjusted arbitrarily between 0 and 100%, achieving the effects of power adjustment and frequency conversion energy saving, while saving customers' waiting time and reducing damage to the cookware itself.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a novel controllable heat power cooking appliance heating control device, comprising a control module, a silicon controlled rectifier (SCR) plate, a power supply module, a first heating element, a second heating element, and a display module. The controller is connected to the input terminal of the SCR plate, the first output terminal of the SCR plate is connected to one end of the first heating element, the second output terminal of the SCR plate is connected to the second heating element, and both the controller and the display module are connected to the power supply module.

[0005] A further configuration of the present invention is as follows: the control module includes a control chip U1, pin 2 of which is grounded; the power supply module includes a low-voltage frequency converter T1, a bridge rectifier D1, and a three-terminal voltage regulator integrated circuit IC1; the low-voltage frequency converter T1 converts 220V AC voltage to 12V AC voltage; the bridge rectifier D1 converts 12V AC voltage to 12V DC voltage; the three-terminal voltage regulator integrated circuit converts 12V DC voltage to 5V DC voltage; the input terminal of the low-voltage frequency converter T1 is connected to 220V AC voltage; a fuse FUSE1 is connected between the input terminal of the low-voltage frequency converter T1 and the live wire; a power compensation capacitor C1 is connected in parallel to the input terminal of the low-voltage frequency converter T1; the output terminal of the low-voltage frequency converter T1 is connected to pins 1 and 3 of the bridge rectifier D1, respectively; the bridge rectifier D1... Pin 2 of rectifier D1 is the positive output terminal, and pin 4 of bridge rectifier D1 is the negative output terminal. Pin 2 of bridge rectifier D1 is connected to the anode of diode D2, and the cathode of diode D2 is connected to the input terminal of three-terminal voltage regulator IC1. Pin 4 of bridge rectifier D1 is grounded. Filter capacitors C2 and C3 are connected to the output terminal of bridge rectifier D1. One end of filter capacitors C2 and C3 is connected to the cathode of diode D2, and the other end is connected to pin 4 of bridge rectifier D1. Filter capacitor C4 is connected to the input terminal of three-terminal voltage regulator IC1, and filter capacitors C5 and C6 are connected to the output terminal of three-terminal voltage regulator IC1. The other ends of filter capacitors C4, C5, and C6 are all grounded. The output terminal of three-terminal voltage regulator IC1 is connected to pin 1 of control chip U1.

[0006] A further configuration of the present invention is as follows: pin 2 of the bridge rectifier D1 is connected to the base of transistor Q1 through a current-limiting resistor R1, the collector of transistor Q1 is connected to a +5V power supply through a pull-up resistor R2, the emitter of transistor Q1 is grounded, a capacitor C7 is connected between the base and emitter of transistor Q1, and the collector of transistor Q1 is connected to pin 3 of the control chip U1.

[0007] A further configuration of the present invention is as follows: the thyristor board includes a first power adjustment circuit and a second power adjustment circuit. The first power adjustment circuit and the second power adjustment circuit have the same structure and are connected in parallel. Both the first power adjustment circuit and the second power adjustment circuit include a resistor R1, an optocoupler, and a bidirectional thyristor. One end of the resistor R1 is connected to port 1 of connector CN1, and the other end is connected to the first input terminal of the optocoupler. The second input terminal of the optocoupler is connected to port 2 of connector CN1. The first output terminal of the optocoupler is connected to the first main electrode of the bidirectional thyristor, and the second output terminal of the optocoupler is connected to the gate of the bidirectional thyristor. The first main electrode of the bidirectional thyristor is connected to the live wire, and the second main electrode is a heating output port.

[0008] A further configuration of the present invention is as follows: the display module includes a rotary encoder switch, a display screen, a plug-in board, and a driver chip; the plug-in board is connected to the control chip U1; the rotary encoder switch is connected to the plug-in board; and the plug-in board is connected to the display screen through the driver chip.

[0009] A further provision of the present invention includes a power detection module and a leakage protection module. The power detection module is connected to the control module and is used to detect the power of the first heating element and the second heating element, and to feed the power data back to the control module so that the control module can adjust and control the heating power of the first heating element and the second heating element according to the power data. The leakage protection module is connected to the control module and is used to detect whether the coils of the first heating element and the second heating element are leaking current. When leakage current is detected, a signal is fed back to the control module so that the control module can take corresponding actions to cut off the power supply.

[0010] A further feature of the present invention is that it also includes a heat dissipation module, the input end of which is connected to the control module, and the output end of which is connected to a fan. The control module sends a drive signal to the heat dissipation module, and the heat dissipation module drives the fan to start and dissipate heat from the thyristor board.

[0011] A further feature of the present invention is that it also includes an alarm module, which is connected to the control module. When the control module receives a leakage current signal, it triggers the alarm module to sound an alarm.

[0012] The beneficial effects of this invention are: the novel controllable heat power cooking appliance heating control device of this invention makes it convenient to adjust the output power. The heating power can be arbitrarily adjusted between 0 and 100%, achieving the effects of power adjustment and frequency conversion energy saving. At the same time, it saves customers' waiting time and reduces damage to the cooking appliance itself. The control part adopts an independent circuit, which can control different heating tubes individually. Using two heating tubes at the same time can improve the overall heating power. The heating control device of this invention is suitable for various electric heating equipment such as noodle cooking, steaming buns, heat preservation, and instant heating cabinets. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a wiring diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the control module of the present invention;

[0016] Figure 3 This is a schematic diagram of the circuit structure of the power module of the present invention;

[0017] Figure 4 This is a schematic diagram of the circuit structure of the thyristor board of the present invention;

[0018] Figure 5 This is a schematic diagram of the circuit structure of the display module of the present invention;

[0019] Figure 6 This is a schematic diagram of the circuit structure of the power detection module of the present invention;

[0020] Figure 7 This is a schematic diagram of the circuit structure of the leakage current protection module of the present invention;

[0021] Figure 8 This is a schematic diagram of the circuit structure of the heat dissipation module of the present invention;

[0022] Figure 9 This is a schematic diagram of the circuit structure of the alarm module of the present invention. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] See Figure 1 A novel controllable heating power device for cookware includes a control module, a silicon controlled rectifier (SCR) plate, a power module, a first heating element, a second heating element, and a display module. The controller is connected to the input terminal of the SCR plate, the first output terminal of the SCR plate is connected to one end of the first heating element, and the second output terminal of the SCR plate is connected to the second heating element. Both the controller and the display module are connected to the power module. This novel controllable heating power device allows for convenient adjustment of the output power, with the heating power adjustable arbitrarily between 0% and 100%, achieving adjustable power and energy-saving frequency conversion. It also saves customer waiting time and reduces damage to the cookware. The control section uses an independent circuit, allowing for individual control of different heating elements. Using two heating elements simultaneously increases the overall heating power. This heating control device is suitable for various electric heating equipment such as noodle cookers, steamed bun cookers, heat preservation devices, and instant heating cabinets.

[0025] See Figure 2 and Figure 3 The control module includes a control chip U1, with pin 2 of the control chip U1 grounded. The power supply module includes a low-voltage frequency converter T1, a bridge rectifier D1, and a three-terminal voltage regulator IC1. The low-voltage frequency converter T1 converts 220V AC voltage to 12V AC voltage. The bridge rectifier D1 converts 12V AC voltage to 12V DC voltage. The three-terminal voltage regulator IC1 converts 12V DC voltage to 5V DC voltage. The input terminal of the low-voltage frequency converter T1 is connected to the 220V AC voltage. A fuse FUSE1 is connected between the input terminal of the low-voltage frequency converter T1 and the live wire. A power compensation capacitor C1 is connected in parallel to the input terminal of the low-voltage frequency converter T1. The output terminals of the low-voltage frequency converter T1 are connected to pins 1 and 3 of the bridge rectifier D1, respectively. Pin 2 is the positive output terminal, and pin 4 of the bridge rectifier D1 is the negative output terminal. Pin 2 of the bridge rectifier D1 is connected to the anode of diode D2, and the cathode of diode D2 is connected to the input terminal of the three-terminal voltage regulator IC1. Pin 4 of the bridge rectifier D1 is grounded. The output terminal of the bridge rectifier D1 is connected to filter capacitors C2 and C3. One end of filter capacitors C2 and C3 is connected to the cathode of diode D2, and the other end is connected to pin 4 of the bridge rectifier D1. The input terminal of the three-terminal voltage regulator IC1 is connected to filter capacitor C4, and the output terminal of the three-terminal voltage regulator IC1 is connected to filter capacitors C5 and C6. The other ends of filter capacitors C4, C5, and C6 are all grounded. The output terminal of the three-terminal voltage regulator IC1 is connected to pin 1 of the control chip U1.

[0026] Specifically, pin 2 of the bridge rectifier D1 is connected to the base of transistor Q1 through a current-limiting resistor R1. The collector of transistor Q1 is connected to the +5V power supply through a pull-up resistor R2. The emitter of transistor Q1 is grounded. A capacitor C7 is connected between the base and emitter of transistor Q1. The collector of transistor Q1 is connected to pin 3 of the control chip U1.

[0027] See Figure 4 The thyristor board includes a first power adjustment circuit and a second power adjustment circuit. The first power adjustment circuit and the second power adjustment circuit have the same structure and are connected in parallel. Both the first power adjustment circuit and the second power adjustment circuit include a resistor R3, an optocoupler, and a bidirectional thyristor. One end of the resistor R1 is connected to port 1 of connector CN1, and the other end is connected to the first input terminal of the optocoupler. The second input terminal of the optocoupler is connected to port 2 of connector CN1. The first output terminal of the optocoupler is connected to the first main electrode of the bidirectional thyristor, and the second output terminal of the optocoupler is connected to the gate of the bidirectional thyristor. The first main electrode of the bidirectional thyristor is connected to the live wire, and the second main electrode is the heating output port.

[0028] See Figure 5 The display module includes a rotary encoder switch, a display screen, a plug-in board, and a driver chip. The plug-in board is connected to the control chip U1, the rotary encoder switch is connected to the plug-in board, and the plug-in board is connected to the display screen via the driver chip. The control panel is an adjustable switch knob with a digital display. When powered on, the digital display shows "OFF". Pressing the knob turns on heating. Turning the knob to the right increases the digital display from "0" to the maximum "100", and the heating coil power also increases from 0% to 100%. When the desired heating power is reached, the heating stops. Turning the knob to the left decreases the heating power.

[0029] See Figure 6 and Figure 7 It also includes a power detection module and a leakage protection module. The power detection module is connected to the control module and is used to detect the power of heating tube one and heating tube two, and feed the power data back to the control module so that the control module can adjust and control the heating power of heating tube one and heating tube two according to the power data. The leakage protection module is connected to the control module and is used to detect whether the coils of heating tube one and heating tube two are leaking current. When leakage is detected, a signal is fed back to the control module so that the control module can take corresponding actions to cut off the power supply.

[0030] See Figure 8It also includes a heat dissipation module, the input end of which is connected to the control module, and the output end of which is connected to a fan. The control module sends a drive signal to the heat dissipation module, and the heat dissipation module drives the fan to start and dissipate heat from the thyristor board.

[0031] See Figure 9 It also includes an alarm module, which is connected to the control module. When the control module receives a leakage signal, it triggers the alarm module to sound an alarm.

Claims

1. A new type of cookware heating control device with controllable thermal power, characterized in that: The utility model provides a kind of heating device, including control module, thyristor board, power module, heating tube one, heating tube two and display module, the input end of the control module is connected with the thyristor board, the first output end of the thyristor board is connected with the one end of heating tube one, the second output end of the thyristor board is connected with the heating tube two, the control module and the display module are connected with the power module, control module includes control chip U1, the power module includes low-voltage frequency converter T1, bridge rectifier D1 and three-terminal voltage regulator integrated circuit IC1, the low-voltage frequency converter T1 is used to convert 220V alternating voltage into 12V alternating voltage, the bridge rectifier D1 is used to convert 12V alternating voltage into 12V direct current, and the three-terminal voltage regulator integrated circuit is used to convert 12V direct current into 5V direct current, the input end of the low-voltage frequency converter T1 is connected with 220V alternating voltage, the input end of the low-voltage frequency converter T1 is connected with fuse FUSE1 between fire line, the input end of the low-voltage frequency converter T1 is connected with power compensation capacitor C1 in parallel, the output end of the low-voltage frequency converter T1 is connected with the pin 1 and pin 3 of the bridge rectifier D1 respectively, the pin 2 of the bridge rectifier D1 is positive output end, the pin 4 of the bridge rectifier D1 is negative output end, the pin 2 of the bridge rectifier D1 is connected with the anode of diode D2, the cathode of diode D2 is connected to the input end of the three-terminal voltage regulator integrated circuit IC1, the pin 4 of the bridge rectifier D1 is grounded, the output end of the bridge rectifier D1 is connected with filter capacitor C2, C3, one end of filter capacitor C2, C3 is connected with the cathode of diode D2, and the other end is connected with the pin 4 of the bridge rectifier D1, the input end of the three-terminal voltage regulator integrated circuit IC1 is connected with filter capacitor C4, the output end of the three-terminal voltage regulator integrated circuit IC1 is connected with filter capacitor C5, C6, the other end of filter capacitor C4, C5 and C6 is grounded, and the output end of the three-terminal voltage regulator integrated circuit IC1 is connected to the pin 1 of the control chip U1; The thyristor board includes first power regulating circuit and second power regulating circuit, the first power regulating circuit and the second power regulating circuit are the same structure and are connected in parallel, the first power regulating circuit and the second power regulating circuit both include resistance R3, photoelectric coupler IC2 and bidirectional thyristor SCR, one end of the resistance R3 is connected with the port 1 of connector CN1, and the other end is connected with the first input end of the photoelectric coupler IC2, the second input end of the photoelectric coupler IC2 is connected with the port 2 of connector CN1, the first output end of the photoelectric coupler IC2 is connected with the first main electrode of bidirectional thyristor SCR, the second output end of the photoelectric coupler IC2 is connected to the gate of bidirectional thyristor SCR, the first main electrode of bidirectional thyristor SCR is connected to fire line, and the second main electrode is heating output port; The control device further comprises a power detection module and a leakage protection module, the power detection module is connected with the control module, and is used for detecting the power of the first heating tube and the second heating tube, and feeding back power data to the control module, so that the control module adjusts and controls the heating power of the first heating tube and the second heating tube according to the power data, the leakage protection module is connected with the control module, and is used for detecting whether the coils of the first heating tube and the second heating tube are leaking, and feeding back a signal to the control module when the leakage is detected, so that the control module makes corresponding action to cut off the power supply.

2. A novel controlled heat power cooking appliance heating control device according to claim 1 characterized in that: The pin 2 of the bridge rectifier D1 is connected with the base of the triode Q1 through the current-limiting resistor R1, the collector of the triode Q1 is connected with the +5V power supply through the pull-up resistor R2, the emitter of the triode Q1 is grounded, the capacitor C7 is connected between the base and the emitter of the triode Q1, and the collector of the triode Q1 is connected to the pin 3 of the control chip U1.

3. The novel controlled heat power cooking appliance heating control device according to claim 1, characterized in that: The display module comprises a rotary encoding switch, a display screen, a plug-in board P1 and a driving chip IC10, the plug-in board P1 is connected with the control chip U1, the rotary encoding switch is connected with the plug-in board P1, and the plug-in board P1 is connected with the display screen through the driving chip IC10.

4. The novel controlled heat power cooking appliance heating control device according to claim 1, characterized in that: Further comprising a heat dissipation module, the input end of the heat dissipation module is connected with the control module, and the output end of the heat dissipation module is connected to a fan; the control module sends a driving signal to the heat dissipation module, and the heat dissipation module drives the fan to start heat dissipation of the thyristor board.

5. The novel heat power controllable cooker heating control device according to any one of claims 1 to 4, characterized in that: Further comprising an alarm module, the alarm module is connected with the control module, and the control module makes the alarm module alarm when receiving a leakage signal.

Images