A domestic noodle cooking machine

Abstract

The application discloses a household powder cooking machine, which comprises a machine body with an open top, a top cover arranged at the opening of the machine body, a containing cavity arranged in the machine body, and a powder cooking assembly arranged in the containing cavity. The powder cooking assembly comprises an inner container, a powder bin, a heating element, a water storage barrel, a waste water barrel and a water pumping device. The inner container and the powder bin are in a cylindrical shape with an open top. The powder bin is embedded in the inner container. The side wall and the bottom of the powder bin are provided with a plurality of water filtering holes. The heating element is arranged on the outer wall of the inner container. The water storage barrel and the waste water barrel are arranged below the inner container. The bottom of the inner container is provided with a water outlet. The water outlet is communicated with the waste water barrel through a water discharge pipe. The application has the advantages of simple structure, small size and reasonable layout. The inner container, the water storage barrel and the waste water barrel are arranged in a vertical mode. The powder bin is arranged in the inner container. When cooking or soaking the rice powder, the rice powder is put into the machine body from the top. When changing the water, the water storage barrel or the waste water barrel is taken out from the side of the machine body. The application has the advantages of reasonable layout, small floor space and suitability for being used as a small household electrical appliance.

Description

Technical Field

[0001] This invention belongs to the field of rice noodle cooking machines, and specifically relates to a household rice noodle cooking machine. Background Technology

[0002] Art and food are indispensable parts of people's lives. We not only want to eat well, but also conveniently. Therefore, various cooking machines have emerged on the market to meet diverse needs. Liuzhou snail rice noodles are a popular national delicacy, its unique spicy, refreshing, fresh, sour, and hot flavors deeply loved by diners. However, the soaking and cooking process for snail rice noodles is relatively complex, requiring two rounds of soaking and cooking to achieve the desired chewy texture. Currently, most rice noodle cooking machines on the market are commercial machines, such as the rapid automatic rice noodle cooking machine (application number 201410212445.6), a rice noodle cooking machine (application number 201821004143.X), and a rice noodle processing machine (application number 201921029369.X). These are not for home use, are relatively large, have limited functions, and are quite restrictive. In addition, we found some other patents for rice noodle cooking machines, such as patent number 201610145953.6, which describes a rotary continuous soaking and cooking rice noodle drying machine. This machine includes a soaking and cooking tank, a conveying wheel, and a storage hopper. The soaking and cooking tank comprises a base frame, a soaking tank, and a cooking tank. The soaking tank is located in the middle of the base frame and has a soft rice noodle channel. The cooking tank is located in the middle of the soaking tank and has a cooked rice noodle transfer hopper, a turning device, and a rice noodle cooking bowl. The conveying wheel is fitted into the base frame and has a soft rice noodle transfer groove and a drive wheel rail. The storage hopper is installed on top of the cooking tank and has a quantitative transfer valve. This embodiment can be easily installed on the street and in various restaurants. Operators simply need to put the rice noodles directly into the soaking tank and put the oil, salt, soy sauce, vinegar, and vegetables into the seasoning and auxiliary material storage tanks respectively. By controlling the switch, multiple flavors of rice noodles can be continuously cooked. Therefore, this rotary continuous soaking and cooking rice noodle drying machine has a reasonable structure, is easy to use, and is suitable for entrepreneurs. This device is not designed for home use, and its size is relatively large. Furthermore, this structure cannot quickly select and operate for both dry-cooking and soup-cooking methods of snail rice noodles. Application number 201410493571.3 discloses an integrated rice washing, noodle cooking, and noodle boiling machine and its control system. It includes a stainless steel casing, with a control cabinet at one end and a working chamber at the other. The working chamber is located inside the casing, and its four side walls are sealed with stainless steel panels. The top opening forms a raw material inlet / outlet. Two opposing flushing ports are located at the bottom of opposite ends of the working chamber. These ports are connected to a high-pressure water pump inside the control cabinet via water pipes. A drain hole is located on the bottom panel of the working chamber. A water inlet is located on the upper part of the panel at one end of the working chamber, and several overflow holes are located on the upper part of the panel at the other end. A drain pipe is located on one side of the bottom of the casing. The control panel of the control cabinet includes a rotary switch, a counter, and a display screen. A heater is located at the bottom of the working chamber. A water level detector is located on the upper part of one side wall of the working chamber. This solution has a simple structure, is easy to operate, and saves time and effort. However, this structure also cannot quickly select and operate for the two forms of snail rice noodles: dry-tossed and boiled in soup.Patent No. 201920840004.9 discloses an automatic noodle / rice cooker, comprising a pot body and several hanging rods longitudinally fixed to the top of the pot body. A heating device is installed at the bottom of the pot body. Each hanging rod has a miniature guide rail installed along its axial direction. A hook plate is slidably connected to the miniature guide rail. A timer is installed in the hook plate. A driver is installed at the top of the hanging rod to drive the hook plate to slide along the miniature guide rail. A mesh basket is hung on the hook plate. A control panel is installed on the outer wall of the pot body. A controller is installed in the control panel. The controller is connected to the driver and the timer respectively. Compared with the prior art, the advantages of this utility model are: by controlling the lifting and lowering of the hooks on each miniature guide rail, the lifting and lowering of the mesh basket hanging on the hook plate is realized. Moreover, each hook plate is equipped with a timer. After receiving the signal from the timer, the control panel promptly controls the driver to drive the hook plate to lift the mesh basket, automatically raising the mesh basket out of the hot soup, preventing the food from being overcooked and becoming mushy. However, this device is quite bulky, making water replacement inconvenient and unsuitable for home use. Furthermore, it relies heavily on manual operation, requiring pre-soaking of the powder, and the cooking process is time-consuming and labor-intensive. Currently, we have not found a suitable powder cooking machine for home use. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a household rice noodle cooker that is simple in structure, compact in size, quick to switch, easy to clean, and has a more reasonable heating method.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A household rice noodle cooker includes a body with an opening at the top and a top cover at the opening. The body has an internal cavity containing a rice noodle cooking assembly. The assembly includes an inner pot, a powder container, a heating element, a water tank, a wastewater tank, and a pumping device. The inner pot and powder container are cylindrical with openings at the top. The powder container is embedded in the inner pot, and its side walls and bottom have several filter holes. The heating element is located on the outer wall of the inner pot. The water tank and wastewater tank are located below the inner pot, and the bottom of the inner pot has a drain outlet connected to the wastewater tank via a drain pipe. The drain pipe has a valve for controlling the flow. The pumping device includes an inlet pipe and a pump. The inlet pipe is connected to the pump and the water tank at both ends, respectively. The pump is located next to the inner pot, and its outlet leads into the inner pot. The outer shell of the body has openable and closable side covers corresponding to the water tank and wastewater tank, and these side covers are hinged to the body.

[0006] As a further technical solution, the above-mentioned powder bin includes an inner powder bin and an outer powder bin. The inner powder bin is nested inside the outer powder bin. The water filtering holes are evenly distributed on the side walls and the bottom of the inner powder bin and the outer powder bin. A limiting component is provided at the top of the inner powder bin. The limiting component includes a limiting block and an adjusting block arranged in sequence from the inside to the outside. The limiting block is in a shape of a Chinese character 'gan' (dry). The front end of the limiting block is fixedly connected to the top edge of the inner powder bin. The adjusting block is connected to the rear end of the limiting block. The limiting component further includes an upper handle and a lower handle. A groove for embedding the limiting block and an adjusting hole for the adjusting block to pass through are provided at the bottom of the front end of the upper handle. Among them, the length of the groove is greater than the length of the limiting block, which is convenient for the movement of the limiting block. When the limiting block moves to one end of the groove, the water filtering holes of the inner powder bin and the outer powder bin coincide. When the limiting block moves to the other end of the groove, the water filtering holes of the inner powder bin and the outer powder bin are blocked by the side walls of each other. The front end of the lower handle is fixedly connected to the side wall of the outer powder bin. The rear ends of the upper handle and the lower handle are sleeved together by a handle sleeve. When adjusting, hold the handle sleeve. The outer powder bin is fixed, and the adjusting block can push the limiting block to move in the groove to realize the relative adjustment of the inner and outer powder bins.

[0007] As a further technical solution, the two transverse blocks of the above-mentioned limiting block are set as arc-shaped blocks.

[0008] As a further technical solution, the top cover corresponding to the limiting component is set as a flip structure.

[0009] As a further technical solution, the above-mentioned heating element is set as an annular heating element, and the annular heating element is sleeved on the outer side wall of the inner tank.

[0010] As a further technical solution, a plurality of ultrasonic transducers are provided at the bottom of the above-mentioned inner tank.

[0011] As a further technical solution, a first partition board, a second partition board and a third partition board are sequentially arranged below the above-mentioned inner tank. The first partition board is arranged between the ultrasonic transducer and the valve to separate the two. The valve is arranged between the first partition board and the second partition board. The wastewater bucket is arranged between the second partition board and the third partition board. The water storage bucket is arranged between the third partition board and the bottom plate of the machine body. Arc-shaped support blocks are provided between the bottom of the inner tank and the first partition board, between the first partition board and the second partition board, between the second partition board and the third partition board, and between the third partition board and the bottom plate. The first partition board is set as a heat insulation board to prevent damage to electrical components caused by heating of the inner tank. The power supply and the circuit board need to be arranged at the bottom of the noodle cooking machine and are separated by the heat insulation board.

[0012] As a further technical solution, the above-mentioned valve is an electromagnetic valve.

[0013] As a further technical solution, the above-mentioned household rice noodle cooker also includes a controller and an input device. The input device is installed on the outer casing of the machine body and is electrically connected to the controller. The ultrasonic transducer, valve, water pump, and heating element are respectively electrically connected to the controller.

[0014] As a further technical solution, the controller mentioned above is the STC8H1K08 controller.

[0015] As a further technical solution, the input device described above is a touch screen.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. This invention has a simple structure and a compact size. The inner tank, water tank, and wastewater tank of this invention are arranged vertically, with the powder compartment located inside the inner tank. When cooking or soaking rice noodles, the rice noodles are put in from the top of the machine. When changing the water, the water tank or wastewater tank is removed from the side of the machine. The layout is reasonable, occupies a small area, and is suitable for use as a small household appliance.

[0018] 2. This invention offers quick switching. Since snail rice noodles are mainly eaten in two ways: dry-mixed and soup-cooked, this invention, designed with a unique two-compartment structure, caters to different taste preferences. To cook dry-mixed noodles, pushing the adjusting block moves the limiting block to one end of the groove, aligning the filter holes of the inner and outer noodle compartments. Water drains from the inner compartment and flows into a wastewater tank through the drain outlet of the inner liner, effectively filtering the wastewater generated during the initial cooking or soaking of the noodles. To cook soup-cooked noodles, pushing the adjusting block moves the limiting block to the other end of the groove, blocking the filter holes of the inner and outer noodle compartments against each other's sidewalls. This allows the soup-cooked noodles to be poured out and seasonings added for consumption. This noodle compartment design enables rapid switching between the two cooking methods.

[0019] 3. This invention is easy to clean and features a more efficient heating method. Existing rice noodle cookers are difficult to clean due to two main issues: firstly, the heating method is at the bottom, causing the rice noodles to stick to the pot; secondly, small crevices are difficult to clean effectively. Therefore, this invention uses a ring-shaped heating element (such as a mica electric heating coil) with a circumferential heating method. This provides a wider heating range, better cooking results, and prevents rice noodles from sticking to the pot, making cleaning much easier. Secondly, this invention also incorporates an ultrasonic transducer at the bottom of the inner pot. Using the ultrasonic transducer replaces manual washing. After use, pressing a button activates the cleaning function, and the ultrasonic cleaner, positioned between the insulation layer and the bottom of the inner pot, cleans the inside of the inner pot. After cleaning, the wastewater from the inner pot is discharged into the wastewater tank via a bottom solenoid valve, effectively removing stains from the inner pot, reducing the user's workload, and improving cleaning efficiency. Furthermore, considering that the ultrasonic transducer is located at the bottom of the inner pot, the large amount of heat released by traditional bottom heating methods could damage the ultrasonic transducer. Therefore, this invention uses a ring-shaped heating element to avoid this damage problem.

[0020] 4. This invention achieves energy conservation and environmental protection. The invention uses a water pump to add water from the storage tank into the inner liner. Wastewater generated during the cooking process and wastewater generated after ultrasonic cleaning can be collected in the wastewater tank using a solenoid valve at the bottom. The wastewater in the tank can be used to water plants or flush toilets, achieving water reuse and making it very energy-efficient and environmentally friendly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a household rice noodle cooker according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the fuselage of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the cavity in this invention;

[0024] Figure 4 This is a schematic diagram of the structure of the rice noodle cooking assembly of the present invention, including the first heat insulation plate;

[0025] Figure 5 This is a schematic diagram of the powder cooking assembly of the present invention with the first heat insulation plate hidden.

[0026] Figure 6 This is a schematic diagram of the powder hopper structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the upper handle of the present invention;

[0028] Figure 8 This is the power supply circuit diagram for the present invention;

[0029] Figure 9 This is a circuit diagram of the input device of the present invention;

[0030] Figure 10 This is a circuit diagram of the controller of the present invention;

[0031] Figure 11 This is a driving circuit diagram of the ultrasonic transducer of the present invention;

[0032] Figure 12 This is the control circuit diagram of the valve of the present invention;

[0033] Figure 13 This is the control circuit diagram of the water pump of the present invention;

[0034] Figure 14 This is a control circuit diagram of the heating element of the present invention.

[0035] Reference numerals: 1-Body, 2-Top cover, 3-Cavity, 4-Inner liner, 5-Powder hopper, 501-Inner powder hopper, 502-Outer powder hopper, 6-Heating element, 7-Water storage tank, 8-Waste water tank, 9-Pumping device, 901-Inlet pipe, 902-Pump, 10-Filter hole, 11-Drain outlet, 12-Drain pipe, 13-Valve, 14-Side cover structure, 15-Limiting component, 1501-Limiting block, 1502-Adjusting block, 1503-Upper handle, 1504-Lower handle, 1505-Groove, 1506-Adjusting hole, 1507-Handle glove, 16-Flip cover structure, 17-Ultrasonic transducer, 18-First partition, 19-Second partition, 20-Third partition, 21-Bottom plate, 22-Arc-shaped support block, 23-Input device. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited to the scope shown in the embodiments.

[0037] Example 1:

[0038] like Figure 1-5As shown, a household rice noodle cooker includes a body 1 with an opening at the top, a top cover 2 at the opening of the body 1, a cavity 3 inside the body 1, and a rice noodle cooking assembly inside the cavity 3. The rice noodle cooking assembly includes an inner tank 4, a powder container 5, a heating element 6, a water storage tank 7, a wastewater tank 8, and a water pumping device 9. The inner tank 4 and the powder container 5 are cylindrical with openings at the top. The powder container 5 is embedded in the inner tank 4. Several water filter holes 903 are provided on the side walls and bottom of the powder container 5 to facilitate water entering / leaking out of the powder container 5. The heating element 6 is located on the outer wall of the inner tank 4. The water storage tank 7 and the wastewater tank 8 are located below the inner tank 4. A drain outlet 1 is provided at the bottom of the inner tank 4. 1. The drain outlet 11 is connected to the wastewater tank 8 through the drain pipe 12 for discharging the collected wastewater. The drain pipe 12 is equipped with a valve 13 to control the on / off state. The water pumping device 9 includes an inlet pipe 901 and a water pump 902. The two ends of the inlet pipe 901 are connected to the water pump 902 and the water storage tank 7, respectively. The water pump 902 is located next to the inner tank 4, and the outlet of the water pump 902 is connected to the inner tank 4. The outer shell of the machine body 1 is provided with an openable and closable side cover structure 14 at the corresponding positions of the water storage tank 7 and the wastewater tank 8. The side cover structure 14 is hinged to the machine body 1. This design facilitates filling the water storage tank 7 with water and emptying the water in the wastewater tank 8. Below the inner tank 4, a first partition 18, a second partition 19, and a third partition 20 are arranged sequentially. The first partition 18 is located between the ultrasonic transducer 17 and the valve 13, separating them. The valve 13 is located between the first partition 18 and the second partition 19. The wastewater tank 8 is located between the second partition 19 and the third partition 20 (the wastewater tank 8 is placed on the third partition 20). The water storage tank 7 is located between the third partition 20 and the bottom plate 21 of the machine body 1 (the water storage tank 7 is placed on the bottom plate 21). Arc-shaped support blocks 22 are provided between the bottom of the inner tank 4 and the first partition 18, the first partition 18 and the second partition 19, the second partition 19 and the third partition 20, and the third partition 20 and the bottom plate 21. The arc length can be set to fully enclosed or semi-open, which can be selected as needed. The first partition 18 is a heat insulation plate to prevent damage to electrical components caused by heating of the inner tank 4. The power supply and circuit board need to be located at the bottom of the rice noodle cooker. The valve 13 is a solenoid valve. The 902 water pump is a diaphragm pump.

[0039] Furthermore, the heating element 6 is set as a ring-shaped heating element 6, namely a mica electric heating ring. The ring-shaped heating element 6 is fitted on the outer wall of the inner pot 4, which has a wide heating range, better rice noodle cooking effect, and will not cause rice noodles to stick to the pot, making it easier to clean.

[0040] Furthermore, two ultrasonic transducers 17 are provided at the bottom of the inner liner 4, which can effectively remove stains from the inner liner 4, reduce the user's labor intensity, and improve cleaning efficiency. At the same time, considering that the ultrasonic transducers 17 are located at the bottom of the inner liner 4, the large amount of heat released by the traditional bottom heating method would damage the ultrasonic transducers 17. Therefore, the present invention selects the annular heating element 6 to avoid the problem of damage to the ultrasonic transducers 17.

[0041] Example 2:

[0042] As Figure 6-7 shown, in order to achieve a quick selection and conversion between the two eating methods of dry-fried and soup-boiled, on the basis of Example 1, the powder bin 5 is set as an inner powder bin 501 and an outer powder bin 502. The inner powder bin 501 is nested inside the outer powder bin 502. The water filtering holes 903 are evenly distributed on the side walls and bottom of the inner powder bin 501 and the outer powder bin 502. A limiting component 15 is provided at the top of the inner powder bin 501. The limiting component 15 includes a limiting block 1501 and an adjusting block 1502 arranged in sequence from inside to outside. The limiting block 1501 is in the shape of a character "Gan" (dry). The front end of the limiting block 1501 is fixedly connected to the top edge of the inner powder bin 501. The adjusting block 1502 is connected to the rear end of the limiting block 1501. In order to make the adjustment of the limiting block 1501 smoother, the two horizontal blocks of the limiting block 1501 are set as arc-shaped blocks; the limiting component 15 further includes an upper handle 1503 and a lower handle 1504. At the bottom of the front end of the upper handle 1503, there is a groove 1505 for embedding the limiting block 1501 and an adjusting hole 1506 for the adjusting block 1502 to pass through for adjustment. Among them, the length of the groove 1505 is greater than the length of the limiting block 1501, which is convenient for the movement of the limiting block 1501; when the limiting block 1501 moves to one end of the groove 1505, the water filtering holes 903 of the inner powder bin 501 and the outer powder bin 502 coincide, and the water in the inner powder bin 501 can be drained out and flows into the waste water bucket 8 through the drain port 11 of the inner liner 4, realizing the filtration of the waste water generated during the first boiling or soaking of the powder during the cooking process; when the limiting block 1501 moves to the other end of the groove 1505, the water filtering holes 903 of the inner powder bin 501 and the outer powder bin 502 are blocked by the side walls of each other, and then the soup powder in the powder bin 5 can be poured out and seasonings can be added for eating; the front end of the lower handle 1504 is fixedly connected to the side wall of the outer powder bin 502; the rear ends of the upper handle 1503 and the lower handle 1504 are sleeved together by a handle sleeve 1507. When adjusting, hold the handle sleeve 1507, the outer powder bin 502 is fixed, and by pushing the adjusting block 1502, the limiting block 1501 can be made to move in the groove 1505, realizing the relative adjustment of the inner and outer powder bins 502. The top cover 2 is set as a flip structure 16 corresponding to the limiting component 15, which is convenient for pushing the adjusting block 1502.

[0043] The household powder cooking machine further includes a controller and an input device 23. The input device 23 is installed on the outer shell of the machine body 1. The input device 23 is electrically connected to the controller. The ultrasonic transducer 17, the valve 13, the water pump 902, and the heating element 6 are respectively electrically connected to the controller. The controller is an STC8H1K08 controller. The input device 23 is a touch screen.

[0044] As Figure 8As shown, the power supply of this invention consists of linear regulators U6 (7812), U7 (7805), and U8 (7812) and capacitors C11 and C12. The +24V power supply is provided by an external switching power supply to power the entire circuit. Capacitors C11 and C12 are the filter capacitor and bypass capacitor, respectively. Capacitors C11 and C12 are connected in parallel to the 24V power supply to filter out power supply noise and improve the dynamic response capability of the power supply. U6 and U8 are two 7812 regulators used to step down the 24V to 12V. Their output pins (pin 3) are connected in parallel to provide a 3A output current to power the gate drive in the subsequent ultrasonic drive circuit and the relay coil in other circuits. U7 is a 7805 regulator that steps down the 24V to 5V to power the control chip and other +5V circuits. Pin 1 (IN) of U6, U7, and U8 are all connected to +24V, and pin 2 (GND) is connected to the negative terminal of the power supply. The capacitances of C11 and C12 are 1000μF and 10μF, respectively.

[0045] like Figure 9 As shown, the circuit of the input device 23 of the present invention: the connector CN1 of the input device 23 (UART serial port touch screen) is model XH-4AW, which is responsible for the connection of power supply and communication. The touch screen is a general component.

[0046] like Figure 10 As shown, the controller circuit of the present invention: The present invention uses a main control microcontroller of model STC8H1K08 (U1), which has the advantages of simple peripheral circuit and rich interface.

[0047] Since the STC8H1K08 integrates a crystal oscillator and reset circuit, no external connection is needed. Pin 8 is the positive terminal of the chip's 5V power supply; pin 9 is the internal ADC reference voltage input connected to pin 8 (Vcc); pin 10 is the chip's power ground; capacitor C1 is the chip's decoupling capacitor, connected between the +5V power supply and GND (negative power supply) to filter high-frequency interference; C2 is the +5V power supply filter capacitor, connected in parallel with C1, used to filter out noise and glitches on the +5V bus, making the power supply stable and smooth, providing a stable power supply for the microcontroller; pins 11 and 12 are the chip's Dbug interface for program download and debugging; pins 14 and 15 are PWM output pins, configured in push-pull output mode, outputting a set of complementary PWM signals as the driving signal source for ultrasonic transducer 17, which is connected to the driving circuit of ultrasonic transducer 17 (…). Figure 11The PWM_P and PWM_N ports of the device are connected; pins 16, 17, and 18 are the control signal outputs for the heating element 6, water pump 902, and valve 13, respectively, and the outputs are boolean signals to control the on / off state of the relays; pins 19 and 20 are the communication serial ports of the control panel (HMI), connected to the UART serial port of the control panel. The HMI Tx (transmit pin) is connected to the control panel (HMI) Rx (receive pin), and the HMI Rx (transmit pin) is connected to the control panel (HMI) Tx (transmit pin). The capacitances of C1 and C2 are 0.1μF and 100μF, respectively.

[0048] like Figure 11As shown, the driving circuit of the ultrasonic transducer 17 of the present invention mainly consists of a gate driver UCC27524DR (U5), power transistors IRF540 (Q4, Q5), and an impedance matching transformer T1. PWM_N and PWM_P are from pins 14 and 15 of STC8H1K08. One end of resistors R9 and R10 is connected to PWM_N and PWM_P respectively, and the other end is grounded to pull down pins 14 and 15 to keep them at a low level to ensure that false triggering does not occur when the device is not in operation. One end of R1 and R2 is connected to C3 and C4, and the other end of C3 and C4 is grounded, forming two RC low-pass filters. The PWM signal is connected to the signal input pins pin3 (INA) and pin4 (INB) of the UCC27524DR after passing through the two analog DACs of the RC low-pass filters. Pin1 (ENA) and pin8 (ENB) of the UCC27524DR are the enable pins (active high) of the two channels of the driver. Pin1 and pin8 are connected in parallel and then connected to +12V through R8 to enable channels A and B. Pin4 and pin6 are the 0V ground and positive power supply of the UCC27524DR, respectively. Capacitor C10 is the bypass capacitor of the UCC27524DR. Pin5 and pin7 are the output pins of the UCC27524DR and are connected to the gates of the switching transistors Q4 and Q5 through gate resistors R6 and R7. D1 and D2 are two Zener diodes connected in reverse parallel between the gate and source of the switching transistors to protect the switching transistors from breakdown. The sources of Q4 and Q5 are connected to ground in parallel. The drain of Q4 is connected to primary side 1 of the transformer, and the drain of Q5 is connected to primary side 3 of the transformer. Tap 2 on the primary side of T1 is connected to the positive terminal of the 24V power supply, forming a push-pull structure. C5, C6, and C7 are DC support capacitors for the bus. C8 and C9 are absorption capacitors that absorb spikes and provide protection. Because the ultrasonic transducer 17 has a high input impedance, it needs to be matched by impedance matching transformer T1 to drive it. The resistance of resistor R1 is 100Ω, the resistance of R2 is 100Ω, the resistance of resistors R6 and R7 is 5.1Ω, the resistance of R8 is 1kΩ, the resistance of R9 is 10kΩ, the resistance of R10 is 10kΩ, the capacitance of C3 and C4 is 0.01μF, the capacitance of C5, C6, and C7 is 10μF, the capacitance of C8 and C9 is 0.1μF, and the capacitance of C10 is 1μF.

[0049] like Figure 12-14As shown, the control circuits for valve 13, water pump 902, and heating element 6 are basically the same, consisting of optocouplers TLP183 (U2, U3, U4), 1k current-limiting resistors (R3, R4, R5), switching transistors SS8050 (Q1, Q2, Q3), and relays (K1, K2, K3). Pin 1 of the TLP183 is connected to +5V, and pin 3 is connected to the output signal terminal of the microcontroller. By default, pin 3 is high, pins 1 and 3 have equal potential, and the optocoupler is not working. Pin 6 is connected to +12V through a 1k resistor. When pin 3 of the optocoupler is low, pin 4 outputs a high level, the switching transistor SS8050 conducts, the relay coil is energized, and the contacts close to control valve 13, water pump 902, and heating element 6. H1, H2, and H3 are electrical wiring terminals, model HDR-F-2.54_1x2. H1 is the water pump wiring terminal, H2 is the heating element wiring terminal, and H3 is the valve solenoid coil wiring terminal.

[0050] Operating method: When the automatic rice noodle cooker is working, first put the rice noodles into the inner rice noodle chamber 501, push the adjusting block 1502 so that the water filter holes 903 of the inner and outer rice noodle chambers 501 are aligned, close the valve 13, turn on the power, and the water pump 902 will pump water from the water storage tank into the rice noodle chamber 5 through the inner tank 4. Under the action of the controller, when a certain water volume is reached, the water pump 902 will automatically turn off, soaking the rice noodles. After soaking, the heating element 6 will be turned on to heat the water in the inner tank 4 (or heat after changing the water) to cook the rice noodles. After the noodles are cooked, if you choose to eat dry noodles, simply lift the handle 1507 to drain the water from the noodle compartment 5, open valve 13, and let the water flow into the wastewater tank 8 through the drain outlet 11 of the inner tank 4. If you choose to eat soup noodles, push the adjusting block 1502, and the limiting block 1501 is moved to the other end of the groove 1505. The filter holes 903 of the inner and outer noodle compartments 501 are blocked by each other's side walls, and the soup in the inner noodle compartment 501 is retained. Then pour out the soup noodles from the inner noodle compartment 501 and add seasonings for consumption. Then start the diaphragm pump to add water to the inner tank 4. The high-frequency vibration of the ultrasonic cleaner at the bottom of the inner tank 4 achieves a cleaning effect. Finally, drain the water in the inner tank 4 into the wastewater tank at the bottom through valve 13.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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 limiting the scope of protection of this invention. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "connected" and "linked" should be interpreted broadly. For example, it can refer to a fixed connection; a detachable connection; a point connection; a direct connection; or an indirect connection through an intermediate medium, allowing communication between the internal parts of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Device connection methods not described in detail in this invention are understood according to conventional connection methods in the art.

[0052] The above embodiments are merely specific examples to further illustrate the purpose, technical solution, and beneficial effects of the present invention, and the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc., made within the scope of the disclosure of the present invention are included within the protection scope of the present invention.

Claims

1. A household rice noodle cooking machine, comprising a body with an opening at the top, and a top cover provided at the opening of the body, characterized in that: The fuselage has a cavity inside, and a noodle-cooking component is arranged in the cavity. The noodle-cooking component includes an inner container, a powder bin, a heating element, a water storage bucket, a waste water bucket and a water pumping device. The inner container and the powder bin are cylindrical with openings at the top. The powder bin is embedded in the inner container, and a plurality of water filtering holes are provided on the side wall and the bottom of the powder bin. The heating element is arranged on the outer wall of the inner container. The water storage bucket and the waste water bucket are arranged below the inner container. A drain port is provided at the bottom of the inner container, and the drain port is connected to the waste water bucket through a drain pipe. A valve for controlling on / off is provided on the drain pipe. The water pumping device includes a water inlet pipe and a water pump. The two ends of the water inlet pipe are respectively connected to the water pump and the water storage bucket. The water pump is arranged beside the inner container, and the water outlet of the water pump leads into the inner container. The corresponding parts of the outer shell of the fuselage and the water storage bucket and the waste water bucket are provided with an openable side cover structure, and the side cover structure is hinged to the fuselage. The powder bin includes an inner powder bin and an outer powder bin. The inner powder bin is nested in the outer powder bin. The water filtering holes are evenly distributed on the side walls and the bottom of the inner powder bin and the outer powder bin. A limiting component is provided at the top of the inner powder bin. The limiting component includes a limiting block and an adjusting block arranged in sequence from inside to outside. The limiting block is in the shape of a "dry" character. The front end of the limiting block is fixedly connected to the top edge of the inner powder bin, and the adjusting block is connected to the rear end of the limiting block. The limiting component further includes an upper handle and a lower handle. A groove for embedding the limiting block and an adjusting hole for the adjusting block to pass through are provided at the bottom of the front end of the upper handle. Among them, the length of the groove is greater than the length of the limiting block. When the limiting block moves to one end of the groove, the water filtering holes of the inner powder bin and the outer powder bin coincide. When the limiting block moves to the other end of the groove, the water filtering holes of the inner powder bin and the outer powder bin are blocked by the side walls of each other. The front end of the lower handle is fixedly connected to the side wall of the outer powder bin. The rear ends of the upper handle and the lower handle are sleeved together by a handle sleeve.

2. A household rice noodle cooking machine according to claim 1, characterized in that: The two transverse blocks of the limiting block are arc-shaped blocks.

3. A household rice noodle cooking machine according to claim 1, characterized in that: The top cover corresponding to the limiting component is provided with a flip structure.

4. A household rice noodle cooking machine according to claim 1, characterized in that: The heating element is a ring-shaped heating element, and the ring-shaped heating element is sleeved on the outer side wall of the inner container.

5. A household rice noodle cooking machine according to claim 1, characterized in that: A plurality of ultrasonic transducers are provided at the bottom of the inner container.

6. A household rice noodle cooking machine according to claim 5, characterized in that: A first partition board, a second partition board and a third partition board are sequentially arranged below the inner container. The first partition board is arranged between the ultrasonic transducer and the valve to separate the two. The valve is arranged between the first partition board and the second partition board. The waste water bucket is arranged between the second partition board and the third partition board. The water storage bucket is arranged between the third partition board and the bottom plate of the fuselage. Arc-shaped support blocks are provided between the bottom of the inner container and the first partition board, between the first partition board and the second partition board, between the second partition board and the third partition board, and between the third partition board and the bottom plate. The first partition board is an insulating board.

7. A household rice noodle cooking machine according to claim 6, characterized in that: The valve is an electromagnetic valve.

8. A household rice noodle cooking machine according to claim 7, characterized in that: The household noodle-cooking machine further includes a controller and an input device. The input device is installed on the outer shell of the fuselage and is electrically connected to the controller. The ultrasonic transducer, the valve, the water pump and the heating element are respectively electrically connected to the controller.

9. A household rice noodle cooking machine according to claim 8, characterized in that: The controller is an STC8H1K08 controller.

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