Multi-gear smoothie machine based on motor current regulation and control function

Abstract

The utility model relates to the technical field of smoothie machines, in particular to a multi-gear smoothie machine based on a motor current regulation and control function, which comprises a main control module, a stirring module, an ice making module, a stirring detection module, an ice making detection module, a touch screen module and a power supply module, the stirring detection module, the ice-making detection module and the touch screen module are all in signal connection with the main control module, and the power supply module is used for supplying power. According to the utility model, the stirring detection module and the ice-making detection module monitor the working current of the motor in real time, the main control module accurately regulates and controls the power of the stirring motor and the compressor motor according to feedback signals, a user can conveniently set different working gears through the touch screen module, and the practicability is stronger.

Description

Technical Field

[0001] This utility model relates to the field of smoothie machine technology, and more specifically, to a multi-speed smoothie machine based on motor current regulation function. Background Technology

[0002] A slush machine is a small appliance specifically designed to make iced drinks. It mixes ice and liquid, using high-speed rotating blades to break the ice into small particles and mix them with the liquid to create a smooth slush.

[0003] As living standards improve, consumers have increasingly diverse requirements for the functions and performance of smoothie machines. Traditional smoothie machines often cannot flexibly adjust motor power according to different ingredients and user needs during the mixing and ice-making process, resulting in unstable ice-making effects, uneven mixing, and high energy consumption. At the same time, the lack of an effective current detection and control mechanism during motor operation makes it easy for excessive current to damage the motor and shorten the equipment's lifespan. In addition, the human-machine interaction of traditional smoothie machines is relatively simple and cannot meet the needs of modern users for convenient operation and personalized settings. Utility Model Content

[0004] The purpose of this invention is to provide a multi-speed smoothie machine based on motor current regulation function, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-speed smoothie maker based on motor current regulation includes a main control module, a stirring module, an ice-making module, a stirring detection module, an ice-making detection module, a touch screen module, and a power supply module. The stirring module and the ice-making module are electrically connected to the main control module, and the stirring detection module, the ice-making detection module, and the touch screen module are signal connected to the main control module. The power supply module is used to provide power.

[0007] Preferably, the main control module includes a main control chip U1, a +5V power supply, a resistor R1, and a capacitor C1;

[0008] The GND port of the main control chip U1 is grounded, the first end of capacitor C1 is grounded, the second end of capacitor C1 is connected to the first end of resistor R1, the second end of resistor R1 is connected to the +5V power supply, and the VCC port of the main control chip U1 is connected to the second end of capacitor C1.

[0009] Preferably, the stirring module includes a +10V power supply, resistors R2, R3, R4, R5, R6, and R7, capacitor C2, transistor Q1, and stirring motor M1.

[0010] The first end of resistor R2 is connected to the P06 port of the main control chip U1, the second end of resistor R2 is connected to the base of transistor Q1, the first end of resistor R3 is connected to the base of transistor Q1, the second end of resistor R3 is grounded, the emitter of transistor Q1 is grounded, the collector of transistor Q1 is connected to the second end of resistor R4, the first end of resistor R4 is connected to the +10V power supply, the first end of resistor R5 is connected to the second end of resistor R4, the second end of resistor R5 is connected to the first end of resistor R6, the second end of resistor R6 is connected to the speed control port of stirring motor M1, the first end of resistor R7 is connected to the P10 port of the main control chip U1, and the second end of resistor R7 is connected to the frequency detection port of stirring motor M1.

[0011] Preferably, the ice-making module includes a resistor R8, an optocoupler MOC3021, a resistor R9, a silicon controlled rectifier Q2, a compressor motor M2, an AC live wire ACL, and an AC neutral wire ACN, wherein the silicon controlled rectifier Q2 is a BT136.

[0012] The first terminal of resistor R8 is connected to the P11 port of the main control chip U1. Resistor R8 is connected to the anode of optocoupler MOC3021. The cathode of optocoupler MOC3021 is grounded. The first terminal of thyristor Q2 is connected to the AC live wire ACL. The second terminal of thyristor Q2 is connected to the live wire port of compressor motor M2. The control terminal of thyristor Q2 is connected to the first terminal of resistor R9. The second terminal of resistor R9 is connected to the second main port of optocoupler MOC3021. The first main port of optocoupler MOC3021 is connected to the second terminal of thyristor Q2. The neutral wire port of compressor motor M2 is connected to the AC neutral wire ACN.

[0013] Preferably, the stirring detection module includes a +3.3V power supply, resistors R10, R11, and R12, transistors Q3 and Q4, resistors R13, R14, R15, and R16, transistors Q5 and Q6, and a stirring detection unit PM50S.

[0014] The switch port of the stirring detection unit PM50S is connected to the P46 port of the main control chip U1. The stirring detection unit PM50S is used to detect the operating current of the stirring motor M1.

[0015] The TX port of the stirring detection unit PM50S is connected to the base of transistor Q3, the emitter of transistor Q3 is grounded, the collector of transistor Q3 is connected to the second terminal of resistor R10, the first terminal of resistor R10 is connected to the +5V power supply, the first terminal of resistor R11 is connected to the +5V power supply, the second terminal of resistor R11 is connected to the collector of transistor Q4, the base of transistor Q4 is connected to the second terminal of resistor R10, the emitter of transistor Q4 is grounded, the first terminal of resistor R12 is connected to the second terminal of resistor R11, and the second terminal of resistor R12 is connected to the P31 port of the main control chip U1.

[0016] The RX port of the stirring detection unit PM50S is connected to the first terminal of resistor R13. The second terminal of resistor R13 is connected to the collector of transistor Q6, and the emitter of transistor Q6 is grounded. The first terminal of resistor R14 is connected to a +3.3V power supply. The second terminal of resistor R14 is connected to the collector of transistor Q5, and the emitter of transistor Q5 is grounded. The base of transistor Q5 is connected to the second terminal of resistor R16. The first terminal of resistor R16 is connected to the P32 port of the main control chip U1. The first terminal of resistor R15 is connected to a +3.3V power supply. The second terminal of resistor R15 is connected to the collector of transistor Q6, and the base of transistor Q6 is connected to the second terminal of resistor R14.

[0017] Preferably, the ice-making detection module includes resistors R17, R18, R19, transistors Q7 and Q8, resistors R44, R20, R21, transistors Q9 and Q10, and an ice-making detection unit CPJK, which is used to detect the operating current of the compressor motor M2.

[0018] The T port of the ice-making detection unit CPJK is connected to the base of transistor Q7, the emitter of transistor Q7 is grounded, the collector of transistor Q7 is connected to the second terminal of resistor R17, the first terminal of resistor R17 is connected to the +5V power supply, the first terminal of resistor R18 is connected to the +5V power supply, the second terminal of resistor R18 is connected to the collector of transistor Q8, the base of transistor Q8 is connected to the second terminal of resistor R17, the emitter of transistor Q8 is grounded, the first terminal of resistor R19 is connected to the second terminal of resistor R18, and the second terminal of resistor R19 is connected to the P26 port of the main control chip U1.

[0019] The R port of the ice-making detection unit CPJK is connected to the collector of transistor Q10, and the emitter of transistor Q10 is grounded. The first end of resistor R44 is connected to a +3.3V power supply, and the second end of resistor R44 is connected to the base of transistor Q10. The first end of resistor R20 is connected to a +3.3V power supply, and the second end of resistor R20 is connected to the collector of transistor Q10. The first end of resistor R21 is connected to the P27 port of the main control chip U1, and the second end of resistor R21 is connected to the base of transistor Q9. The collector of transistor Q9 is connected to the second end of resistor R44, and transistor Q9 is grounded.

[0020] Preferably, the touch screen module includes resistors R22 and R23, transceiver chip U2, capacitors C3 and C4, resistors R24 and R25, diodes D1, R26, and R27, diode D2, and socket CN2. Diodes D1 and D2 are both Zener diodes. The touch screen is connected to socket CN2. The transceiver chip U2 is an SP3485.

[0021] Resistor R22's first terminal is connected to port P33 of the main control chip U1, and its second terminal is connected to port RO of the transceiver chip U2. Resistor R23's first terminal is connected to port P34 of the main control chip U1, and its second terminal is connected to port DI of the transceiver chip U2. The RE and DE ports of the transceiver chip U2 are connected to a +5V power supply. Capacitor C3's first terminal is grounded, and its second terminal is connected to a +5V power supply. Capacitor C4's first terminal is grounded, and its second terminal is connected to a +5V power supply. The VCC port of the transceiver chip U2 is connected to a +5V power supply, and the GND port of the transceiver chip U2 is also connected to a +5V power supply. With the port grounded, the B port of transceiver chip U2 is connected to the first terminal of resistor R25, the A port of transceiver chip U2 is connected to the first terminal of resistor R27, the second terminals of resistor R25 and R27 are connected to different ports of socket CN2, the first terminal of resistor R24 ​​is grounded, the second terminal of resistor R24 ​​is connected to the first terminal of resistor R25, the first terminal of diode D1 is grounded, the second terminal of diode D1 is connected to the first terminal of resistor R25, the first terminal of resistor R26 is connected to the first terminal of resistor R27, the second terminal of resistor R26 is grounded, the first terminal of diode D2 is connected to the first terminal of resistor R27, and the second terminal of diode D2 is grounded.

[0022] Preferably, the power supply module includes a rectifier unit, a first buck unit, a second buck unit, and a third buck unit connected in sequence, and the power supply module is used to provide power at different voltages.

[0023] Preferably, the rectifier unit includes a fuse F, a varistor ZR, a capacitor C5, a resistor R27, a resistor R28, a rectifier bridge, a capacitor C6, a filter LF, and a capacitor C7.

[0024] The first terminal of fuse F is connected to the AC live wire ACL. The first terminal of varistor ZR is connected to the second terminal of fuse F, and the second terminal of varistor ZR is connected to the AC neutral wire ACN. The first terminal of capacitor C5 is connected to the first terminal of varistor ZR, and the second terminal of capacitor C5 is connected to the second terminal of varistor ZR. The first terminal of resistor R27 is connected to the first terminal of capacitor C5, the second terminal of resistor R27 is connected to the first terminal of resistor R28, and the second terminal of resistor R28 is connected to the second terminal of capacitor C5. The two input terminals of the rectifier bridge are connected to the two ends of capacitor C5, and the two output terminals of the rectifier bridge are connected to the two ends of capacitor C6. The first terminal of filter LF is connected to the first terminal of capacitor C6, the third terminal of filter LF is connected to the second terminal of capacitor C6, the second terminal of filter LF is connected to the first terminal of capacitor C7, the fourth terminal of filter LF is connected to the second terminal of capacitor C7, and the second terminal of capacitor C7 is grounded.

[0025] Preferably, the first step-down unit includes resistor R29, resistor R30, capacitor C8, capacitor C9, resistor R31, resistor R32, resistor R33, diode D3, resistor R34, diode D4, control chip U3, resistor R35, resistor R36, capacitor C12, optocoupler 817, resistor R39, resistor R40, first primary coil, second primary coil, secondary coil, diode D5, capacitor C10, resistor R37, capacitor C11, resistor R38, resistor R43, capacitor C13, resistor R41, voltage regulator TL431, and resistor R42. The control chip U3 is model CR5269S.

[0026] The first terminal of resistor R29 is connected to the first terminal of capacitor C7. The second terminal of resistor R29 is connected to the first terminal of resistor R30. The second terminal of resistor R30 is connected to the first terminal of capacitor C8. The second terminal of capacitor C8 is grounded. The first terminal of capacitor C9 is connected to the first terminal of resistor R29. The first terminal of resistor R31 is connected to the first terminal of capacitor C9. The second terminal of resistor R31 is connected to the second terminal of capacitor C9. The first terminal of resistor R32 is connected to the first terminal of resistor R31. The second terminal of resistor R32 is connected to the second terminal of resistor R31. The first terminal of resistor R33 is connected to the second terminal of resistor R32. The first terminal of the first primary coil is connected to the first terminal of capacitor C7. The second terminal of the first primary coil is connected to the positive terminal of diode D3. Diode D3... The negative terminal is connected to the second terminal of resistor R33. The first terminal of the second primary coil is connected to the positive terminal of diode D4. The second terminal of the second primary coil is grounded. The negative terminal of diode D4 is connected to the second terminal of resistor R34. The first terminal of resistor R34 is connected to the second terminal of resistor R30. The VDD port of control chip U3 is connected to the first terminal of resistor R34. The GND port of control chip U3 is grounded. The SENSE port of control chip U3 is connected to the first terminal of resistor R35. The second terminal of resistor R35 is grounded. The first terminal of resistor R36 is connected to the first terminal of resistor R35. The second terminal of resistor R36 is grounded. The DRAIN port of control chip U3 is connected to the positive terminal of diode D3. The first terminal of the secondary coil... Connect the positive terminal of diode D5 to the ground, the second terminal of the secondary coil to the ground, the negative terminal of diode D5 to the first terminal of capacitor C11, the second terminal of capacitor C11 to the ground, the first terminal of resistor R38 to the first terminal of capacitor C11, the second terminal of resistor R38 to the ground, the first terminal of resistor R37 to the positive terminal of diode D5, the second terminal of resistor R37 to the first terminal of capacitor C10, the second terminal of capacitor C10 to the negative terminal of diode D5, the FB port of control chip U3 to the collector of optocoupler 817, the emitter of optocoupler 817 to the ground, the first terminal of capacitor C12 to the collector of optocoupler 817, the second terminal of capacitor C12 to the ground, and the first terminal of resistor R39 to the negative terminal of diode D5. The second terminal of resistor R39 is connected to the anode of optocoupler 817. The first terminal of resistor R40 is connected to the first terminal of resistor R39. The second terminal of resistor R40 is connected to the cathode of optocoupler 817. The first terminal of capacitor C13 is connected to the second terminal of resistor R40. The second terminal of capacitor C13 is connected to the first terminal of resistor R41. The second terminal of resistor R41 is connected to the second terminal of resistor R43. The first terminal of resistor R43 is connected to the negative terminal of diode D5. The anode of voltage regulator TL431 is grounded. The cathode of voltage regulator TL431 is connected to the second terminal of resistor R40. The reference terminal of voltage regulator TL431 is connected to the second terminal of resistor R43. The first terminal of resistor R42 is grounded. The second terminal of resistor R42 is connected to the second terminal of resistor R43.

[0027] Preferably, the second step-down unit includes capacitors C16, C17, C18, and C19, and a voltage regulator chip U5, model number LM78M05.

[0028] The first terminal of capacitor C16 is connected to the negative terminal of diode D5, and the second terminal of capacitor C16 is grounded. The first terminal of capacitor C17 is connected to the first terminal of capacitor C16, and the second terminal of capacitor C17 is grounded. The VIN port of voltage regulator chip U5 is connected to the first terminal of capacitor C17, and the GND port of voltage regulator chip U5 is grounded. The VOUT port of voltage regulator chip U5 is connected to the first terminal of capacitor C18, and the second terminal of capacitor C18 is grounded. The first terminal of capacitor C19 is connected to the first terminal of capacitor C18, and the second terminal of capacitor C19 is grounded.

[0029] Preferably, the third step-down unit includes capacitor C20, capacitor C21, and voltage regulator chip U6, wherein the voltage regulator chip U6 is model AMS1117;

[0030] The first terminal of capacitor C20 is connected to the first terminal of capacitor C19, and the second terminal of capacitor C20 is grounded. The VIN port of voltage regulator chip U6 is connected to the first terminal of capacitor C20, the GND port of voltage regulator chip U6 is grounded, the VOUT port of voltage regulator chip U6 is connected to the first terminal of capacitor C21, and the second terminal of capacitor C21 is grounded.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] This invention monitors the motor's operating current in real time by setting up a stirring detection module and an ice-making detection module. The main control module precisely adjusts the power of the stirring motor and the compressor motor based on the feedback signal. Users can easily set different operating levels through the touch screen module, making it more practical. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the power module in the utility model.

[0035] Figure 3 This is a circuit diagram of the main control module in the utility model.

[0036] Figure 4 This is a circuit diagram of the stirring module in the utility model.

[0037] Figure 5 This is a circuit diagram of the ice-making module in the utility model.

[0038] Figure 6 This is a circuit diagram of the stirring detection module in the utility model.

[0039] Figure 7 This is a circuit diagram of the ice-making detection module in the utility model.

[0040] Figure 8 This is a circuit diagram of the touch screen module in the utility model.

[0041] Figure 9 This is a circuit diagram of the rectifier unit in the utility model.

[0042] Figure 10 This is a circuit diagram of the first step-down unit in the utility model;

[0043] Figure 11 This is a circuit diagram of the second step-down unit in the utility model;

[0044] Figure 12 This is a circuit diagram of the third step-down unit in the utility model;

[0045] In the picture:

[0046] 1. Main control module;

[0047] 2. Stirring module;

[0048] 3. Ice-making module;

[0049] 4. Stirring detection module;

[0050] 5. Ice-making detection module;

[0051] 6. Touchscreen module;

[0052] 7. Power supply module; 70. Rectifier unit; 71. First step-down unit; 72. Second step-down unit; 73. Third step-down unit. Detailed Implementation

[0053] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0054] Please see Figures 1-12 The present invention provides the following technical solution:

[0055] The multi-speed slush machine based on motor current regulation includes a main control module 1, a stirring module 2, an ice-making module 3, a stirring detection module 4, an ice-making detection module 5, a touch screen module 6, and a power module 7. The stirring module 2 and the ice-making module 3 are electrically connected to the main control module 1. The stirring detection module 4, the ice-making detection module 5, and the touch screen module 6 are all signal connected to the main control module 1. The power module 7 is used to provide power. The main control module 1 controls the stirring module 2 and the ice-making module 3 to make slush, and the stirring detection module 4 and the ice-making detection module 5 assist the main control module 1 in precise control.

[0056] In this embodiment, the main control module 1 includes a main control chip U1, a +5V power supply, a resistor R1, and a capacitor C1;

[0057] The GND port of the main control chip U1 is grounded, the first end of capacitor C1 is grounded, the second end of capacitor C1 is connected to the first end of resistor R1, the second end of resistor R1 is connected to the +5V power supply, and the VCC port of the main control chip U1 is connected to the second end of capacitor C1. The main control module 1 can be a common microcontroller and is equipped with corresponding reset circuit and clock circuit.

[0058] Specifically, the stirring module 2 includes a +10V power supply, resistors R2, R3, R4, R5, R6, and R7, capacitor C2, transistor Q1, and stirring motor M1. Transistor Q1 is an NPN type transistor.

[0059] The first terminal of resistor R2 is connected to the P06 port of the main control chip U1, and the second terminal of resistor R2 is connected to the base of transistor Q1. The first terminal of resistor R3 is connected to the base of transistor Q1, and the second terminal of resistor R3 is grounded. The emitter of transistor Q1 is grounded, and the collector of transistor Q1 is connected to the second terminal of resistor R4. The first terminal of resistor R4 is connected to the +10V power supply. The first terminal of resistor R5 is connected to the second terminal of resistor R4, and the second terminal of resistor R5 is connected to the first terminal of resistor R6. The second terminal of resistor R6 is connected to the speed control port of stirring motor M1. The main control chip U1 outputs a PWM signal to control the speed of the main control chip U1. The first terminal of resistor R7 is connected to the P10 port of the main control chip U1, and the second terminal of resistor R7 is connected to the frequency detection port of stirring motor M1. The frequency can be measured by a Hall sensor.

[0060] Specifically, the ice-making module 3 includes resistor R8, optocoupler MOC3021, resistor R9, thyristor Q2, compressor motor M2, AC live wire ACL and AC neutral wire ACN, and the thyristor Q2 is model BT136.

[0061] The first terminal of resistor R8 is connected to the P11 port of the main control chip U1. Resistor R8 is also connected to the anode of optocoupler MOC3021, and the cathode of optocoupler MOC3021 is grounded. The first terminal of thyristor Q2 is connected to the AC live wire ACL, and the second terminal of thyristor Q2 is connected to the live wire port of compressor motor M2. The control terminal of thyristor Q2 is connected to the first terminal of resistor R9, and the second terminal of resistor R9 is connected to the second main port of optocoupler MOC3021. The first main port of optocoupler MOC3021 is connected to the second terminal of thyristor Q2. The neutral wire port of compressor motor M2 is connected to the AC neutral wire ACN. Optocoupler MOC3021 is used for isolation. The main control chip U1 outputs high and low levels to control the switch of thyristor Q2, thereby controlling compressor motor M2.

[0062] Specifically, the stirring detection module 4 includes a +3.3V power supply, resistors R10, R11, and R12, transistors Q3 and Q4, resistors R13, R14, R15, and R16, transistors Q5 and Q6, and a stirring detection unit PM50S. Transistors Q3, Q4, Q5, and Q6 are all NPN type transistors.

[0063] The switch port of the stirring detection unit PM50S is connected to the P46 port of the main control chip U1. The stirring detection unit PM50S is used to detect the operating current of the stirring motor M1. The operating current can be measured through a current transformer, and other operating parameters such as operating voltage and operating temperature can also be measured.

[0064] The TX port of the stirring detection unit PM50S is connected to the base of transistor Q3, the emitter of transistor Q3 is grounded, the collector of transistor Q3 is connected to the second terminal of resistor R10, the first terminal of resistor R10 is connected to the +5V power supply, the first terminal of resistor R11 is connected to the +5V power supply, the second terminal of resistor R11 is connected to the collector of transistor Q4, the base of transistor Q4 is connected to the second terminal of resistor R10, the emitter of transistor Q4 is grounded, the first terminal of resistor R12 is connected to the second terminal of resistor R11, and the second terminal of resistor R12 is connected to the P31 port of the main control chip U1.

[0065] The RX port of the stirring detection unit PM50S is connected to the first terminal of resistor R13. The second terminal of resistor R13 is connected to the collector of transistor Q6, and the emitter of transistor Q6 is grounded. The first terminal of resistor R14 is connected to a +3.3V power supply. The second terminal of resistor R14 is connected to the collector of transistor Q5, and the emitter of transistor Q5 is grounded. The base of transistor Q5 is connected to the second terminal of resistor R16. The first terminal of resistor R16 is connected to the P32 port of the main control chip U1. The first terminal of resistor R15 is connected to a +3.3V power supply. The second terminal of resistor R15 is connected to the collector of transistor Q6, and the base of transistor Q6 is connected to the second terminal of resistor R14.

[0066] Specifically, the ice-making detection module 5 includes resistors R17, R18, and R19, transistors Q7 and Q8, resistors R44, R20, and R21, transistors Q9 and Q10, and an ice-making detection unit CPJK. The ice-making detection unit CPJK is used to detect the operating current of the compressor motor M2. Transistors Q7, Q81, Q9, and Q10 are all NPN transistors, which can measure the operating current through a current transformer, and can also measure other operating parameters such as operating voltage and operating temperature.

[0067] The T port of the ice-making detection unit CPJK is connected to the base of transistor Q7, the emitter of transistor Q7 is grounded, the collector of transistor Q7 is connected to the second terminal of resistor R17, the first terminal of resistor R17 is connected to the +5V power supply, the first terminal of resistor R18 is connected to the +5V power supply, the second terminal of resistor R18 is connected to the collector of transistor Q8, the base of transistor Q8 is connected to the second terminal of resistor R17, the emitter of transistor Q8 is grounded, the first terminal of resistor R19 is connected to the second terminal of resistor R18, and the second terminal of resistor R19 is connected to the P26 port of the main control chip U1.

[0068] The R port of the ice-making detection unit CPJK is connected to the collector of transistor Q10, and the emitter of transistor Q10 is grounded. The first end of resistor R44 is connected to a +3.3V power supply, and the second end of resistor R44 is connected to the base of transistor Q10. The first end of resistor R20 is connected to a +3.3V power supply, and the second end of resistor R20 is connected to the collector of transistor Q10. The first end of resistor R21 is connected to the P27 port of the main control chip U1, and the second end of resistor R21 is connected to the base of transistor Q9. The collector of transistor Q9 is connected to the second end of resistor R44, and transistor Q9 is grounded.

[0069] Furthermore, the touch screen module 6 includes resistors R22 and R23, transceiver chip U2, capacitors C3 and C4, resistors R24 and R25, diodes D1, R26, and R27, diode D2, and socket CN2. Diodes D1 and D2 are both Zener diodes. The touch screen is connected to socket CN2. The transceiver chip U2 is an SP3485, which can transmit the operating parameters and status information of the slush machine to the touch screen for display. It can also receive commands input by the user through the touch screen and transmit them to the main control chip U1 for execution.

[0070] Resistor R22's first terminal is connected to port P33 of the main control chip U1, and its second terminal is connected to port RO of the transceiver chip U2. Resistor R23's first terminal is connected to port P34 of the main control chip U1, and its second terminal is connected to port DI of the transceiver chip U2. The RE and DE ports of the transceiver chip U2 are connected to a +5V power supply. Capacitor C3's first terminal is grounded, and its second terminal is connected to a +5V power supply. Capacitor C4's first terminal is grounded, and its second terminal is connected to a +5V power supply. The VCC port of the transceiver chip U2 is connected to a +5V power supply, and the GND port of the transceiver chip U2 is also connected to a +5V power supply. With the port grounded, the B port of transceiver chip U2 is connected to the first terminal of resistor R25, the A port of transceiver chip U2 is connected to the first terminal of resistor R27, the second terminals of resistor R25 and R27 are connected to different ports of socket CN2, the first terminal of resistor R24 ​​is grounded, the second terminal of resistor R24 ​​is connected to the first terminal of resistor R25, the first terminal of diode D1 is grounded, the second terminal of diode D1 is connected to the first terminal of resistor R25, the first terminal of resistor R26 is connected to the first terminal of resistor R27, the second terminal of resistor R26 is grounded, the first terminal of diode D2 is connected to the first terminal of resistor R27, and the second terminal of diode D2 is grounded.

[0071] Furthermore, the power module 7 includes a rectifier unit 70, a first buck unit 71, a second buck unit 72, and a third buck unit 73 connected in sequence. The power module 7 is used to provide power supplies of different voltages. The first buck unit 71, the second buck unit 72, and the third buck unit 73 output +10V power, +5V power, and +3.3V power respectively to meet the needs of different devices.

[0072] In addition, the rectifier unit 70 includes a fuse F, a varistor ZR, a capacitor C5, a resistor R27, a resistor R28, a rectifier bridge, a capacitor C6, a filter LF, and a capacitor C7.

[0073] Fuse F's first terminal is connected to the AC live wire ACL to prevent overcurrent. Varistor ZR's first terminal is connected to fuse F's second terminal, and varistor ZR's second terminal is connected to the AC neutral wire ACN to suppress overvoltage. Capacitor C5's first terminal is connected to varistor ZR's first terminal, and capacitor C5's second terminal is connected to varistor ZR's second terminal. Resistor R27's first terminal is connected to capacitor C5's first terminal, resistor R27's second terminal is connected to resistor R28's first terminal, and resistor R28's second terminal is connected to capacitor C5's second terminal. The two input terminals of the rectifier bridge are connected to the two ends of capacitor C5, and the two output terminals of the rectifier bridge are connected to the two ends of capacitor C6. The rectifier bridge is a full-bridge rectifier circuit that converts AC to DC. Filter LF's first terminal is connected to capacitor C6's first terminal, filter LF's third terminal is connected to capacitor C6's second terminal, filter LF's second terminal is connected to capacitor C7's first terminal, and filter LF's fourth terminal is connected to capacitor C7's second terminal, filtering out high-frequency noise and interference signals. Capacitor C7's second terminal is grounded.

[0074] It is worth noting that the first step-down unit 71 includes resistors R29 and R30, capacitors C8 and C9, resistors R31, R32, and R33, diodes D3, R34, and D4, control chip U3, resistors R35 and R36, capacitor C12, optocoupler 817, resistors R39 and R40, a first primary coil, a second primary coil, a secondary coil, diode D5, capacitor C10, resistors R37 and C11, resistors R38 and R43, capacitor C13, resistor R41, voltage regulator TL431, and resistor R42. The control chip U3 is model CR5269S.

[0075] Resistor R29's first terminal is connected to capacitor C7's first terminal; resistor R29's second terminal is connected to resistor R30's first terminal; resistor R30's second terminal is connected to capacitor C8's first terminal; capacitor C8's second terminal is grounded; capacitor C9's first terminal is connected to resistor R29's first terminal; resistor R31's first terminal is connected to capacitor C9's first terminal; resistor R31's second terminal is connected to capacitor C9's second terminal; resistor R32's first terminal is connected to resistor R31's first terminal; resistor R32's second terminal is connected to resistor R31's second terminal; resistor R33's first terminal is connected to resistor R32's second terminal; the first terminal of the first primary coil is connected to capacitor C7's first terminal; the second terminal of the first primary coil is connected to diode D3's anode; diode D3's cathode is connected to resistor R33's second terminal; the first terminal of the second primary coil is connected to diode D4's anode; the second terminal of the second primary coil is grounded. The cathode of diode D4 is connected to the second terminal of resistor R34, the first terminal of resistor R34 is connected to the second terminal of resistor R30, the VDD port of control chip U3 is connected to the first terminal of resistor R34, the GND port of control chip U3 is grounded, the SENSE port of control chip U3 is connected to the first terminal of resistor R35, the second terminal of resistor R35 is grounded, the first terminal of resistor R36 is connected to the first terminal of resistor R35, the second terminal of resistor R36 is grounded, the DRAIN port of control chip U3 is connected to the anode of diode D3, the first terminal of the secondary coil is connected to the anode of diode D5, the second terminal of the secondary coil is grounded, the cathode of diode D5 is connected to the first terminal of capacitor C11, the second terminal of capacitor C11 is grounded, the first terminal of resistor R38 is connected to the first terminal of capacitor C11, the second terminal of resistor R38 is grounded, and the first terminal of resistor R37 is connected to the first terminal of resistor R37. Connect the positive terminal of diode D5, the second terminal of resistor R37 to the first terminal of capacitor C10, the second terminal of capacitor C10 to the negative terminal of diode D5, the FB port of control chip U3 to the collector of optocoupler 817, the emitter of optocoupler 817 to ground, the first terminal of capacitor C12 to the collector of optocoupler 817, the second terminal of capacitor C12 to ground, the first terminal of resistor R39 to the negative terminal of diode D5, the second terminal of resistor R39 to the anode of optocoupler 817, the first terminal of resistor R40 to the first terminal of resistor R39, the second terminal of resistor R40 to the cathode of optocoupler 817, the first terminal of capacitor C13 to the second terminal of resistor R40, the second terminal of capacitor C13 to the first terminal of resistor R41, the second terminal of resistor R41 to the second terminal of resistor R43, and the first terminal of resistor R43 to the negative terminal of diode D5. The anode of the voltage regulator TL431 is grounded, the cathode of the voltage regulator TL431 is connected to the second terminal of resistor R40, the reference terminal of the voltage regulator TL431 is connected to the second terminal of resistor R43, the first terminal of resistor R42 is grounded, and the second terminal of resistor R42 is connected to the second terminal of resistor R43. The DC voltage output from the rectifier unit 70 enters the first step-down unit 71. The circuit composed of resistors R29 and R30, capacitors C8 and C9 participates in the power supply and related control of the primary coil. The control chip U3 adjusts the output according to the feedback signal to ensure a stable voltage output. The secondary coil is rectified by diode D5 and filtered by capacitor C11 to provide a stable DC voltage for subsequent circuits. The optocoupler 817, the voltage regulator TL431, and other components form a feedback circuit that feeds the output voltage back to the control chip U3.This allows it to adjust the output in real time to ensure voltage stability.

[0076] It is worth noting that the second step-down unit 72 includes capacitors C16, C17, C18, and C19, and a voltage regulator chip U5, model number LM78M05.

[0077] The first terminal of capacitor C16 is connected to the negative terminal of diode D5, and the second terminal of capacitor C16 is grounded. The first terminal of capacitor C17 is connected to the first terminal of capacitor C16, and the second terminal of capacitor C17 is grounded. The VIN port of voltage regulator chip U5 is connected to the first terminal of capacitor C17, and the GND port of voltage regulator chip U5 is grounded. The VOUT port of voltage regulator chip U5 is connected to the first terminal of capacitor C18, and the second terminal of capacitor C18 is grounded. The first terminal of capacitor C19 is connected to the first terminal of capacitor C18, and the second terminal of capacitor C19 is grounded. This converts the +10V power supply to a +5V power supply.

[0078] Finally, the third step-down unit 73 includes capacitor C20, capacitor C21 and voltage regulator chip U6, the voltage regulator chip U6 is model AMS1117;

[0079] The first terminal of capacitor C20 is connected to the first terminal of capacitor C19, and the second terminal of capacitor C20 is grounded. The VIN port of voltage regulator chip U6 is connected to the first terminal of capacitor C20, the GND port of voltage regulator chip U6 is grounded, and the VOUT port of voltage regulator chip U6 is connected to the first terminal of capacitor C21, and the second terminal of capacitor C21 is grounded, thus converting the +5V power supply to a +3.3V power supply.

[0080] When the multi-speed smoothie machine based on motor current regulation function of this utility model is in use, the power module 7 converts the AC mains power into the DC voltage required by each module of the smoothie machine. The rectifier unit 70 first performs rectification and preliminary filtering, the first step-down unit 71 further steps down and stabilizes the voltage, and the second step-down unit 72 and the third step-down unit 73 provide +5V power and +3.3V power respectively to power different chips and circuits.

[0081] The main control chip U1 outputs a PWM signal to control the stirring motor M1 and detects the frequency and operating current of the stirring motor M1. The main control chip U1 controls the compressor motor M2 through the optocoupler MOC3021 and the thyristor Q2, and simultaneously detects the operating current of the compressor motor M2.

[0082] Users operate and set the smoothie machine through the touch screen module. The touch screen operation signal is transmitted to the main control chip U1 after passing through the transceiver chip U2. The main control chip U1 processes the signal and controls the corresponding module to work. At the same time, the main control chip transmits the equipment's working status and parameter information to the touch screen for display, realizing human-machine interaction.

[0083] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-speed smoothie maker based on motor current regulation, characterized in that: It includes a main control module (1), a stirring module (2), an ice-making module (3), a stirring detection module (4), an ice-making detection module (5), a touch screen module (6), and a power supply module (7). The stirring module (2) and the ice-making module (3) are electrically connected to the main control module (1). The stirring detection module (4), the ice-making detection module (5), and the touch screen module (6) are signal connected to the main control module (1). The power supply module (7) is used to provide power.

2. The multi-speed smoothie machine based on motor current regulation function according to claim 1, characterized in that: The main control module (1) includes a main control chip U1, a +5V power supply, a resistor R1 and a capacitor C1; The GND port of the main control chip U1 is grounded, the first end of capacitor C1 is grounded, the second end of capacitor C1 is connected to the first end of resistor R1, the second end of resistor R1 is connected to the +5V power supply, and the VCC port of the main control chip U1 is connected to the second end of capacitor C1.

3. The multi-speed smoothie machine based on motor current regulation function according to claim 1, characterized in that: The stirring module (2) includes a +10V power supply, resistors R2, R3, R4, R5, R6, and R7, capacitor C2, transistor Q1, and stirring motor M1. The first end of resistor R2 is connected to the P06 port of the main control chip U1, the second end of resistor R2 is connected to the base of transistor Q1, the first end of resistor R3 is connected to the base of transistor Q1, the second end of resistor R3 is grounded, the emitter of transistor Q1 is grounded, the collector of transistor Q1 is connected to the second end of resistor R4, the first end of resistor R4 is connected to the +10V power supply, the first end of resistor R5 is connected to the second end of resistor R4, the second end of resistor R5 is connected to the first end of resistor R6, the second end of resistor R6 is connected to the speed control port of stirring motor M1, the first end of resistor R7 is connected to the P10 port of the main control chip U1, and the second end of resistor R7 is connected to the frequency detection port of stirring motor M1.

4. The multi-speed smoothie machine based on motor current regulation function according to claim 1, characterized in that: The ice-making module (3) includes resistor R8, optocoupler MOC3021, resistor R9, thyristor Q2, compressor motor M2, AC live wire ACL and AC neutral wire ACN, and the thyristor Q2 is model BT136. The first terminal of resistor R8 is connected to the P11 port of the main control chip U1. Resistor R8 is connected to the anode of optocoupler MOC3021. The cathode of optocoupler MOC3021 is grounded. The first terminal of thyristor Q2 is connected to the AC live wire ACL. The second terminal of thyristor Q2 is connected to the live wire port of compressor motor M2. The control terminal of thyristor Q2 is connected to the first terminal of resistor R9. The second terminal of resistor R9 is connected to the second main port of optocoupler MOC3021. The first main port of optocoupler MOC3021 is connected to the second terminal of thyristor Q2. The neutral wire port of compressor motor M2 is connected to the AC neutral wire ACN.

5. The multi-speed smoothie machine based on motor current regulation function according to claim 1, characterized in that: The stirring detection module (4) includes a +3.3V power supply, resistors R10, R11, and R12, transistors Q3 and Q4, resistors R13, R14, R15, and R16, transistors Q5 and Q6, and a stirring detection unit PM50S. The switch port of the stirring detection unit PM50S is connected to the P46 port of the main control chip U1. The stirring detection unit PM50S is used to detect the operating current of the stirring motor M1. The TX port of the stirring detection unit PM50S is connected to the base of transistor Q3, the emitter of transistor Q3 is grounded, the collector of transistor Q3 is connected to the second terminal of resistor R10, the first terminal of resistor R10 is connected to the +5V power supply, the first terminal of resistor R11 is connected to the +5V power supply, the second terminal of resistor R11 is connected to the collector of transistor Q4, the base of transistor Q4 is connected to the second terminal of resistor R10, the emitter of transistor Q4 is grounded, the first terminal of resistor R12 is connected to the second terminal of resistor R11, and the second terminal of resistor R12 is connected to the P31 port of the main control chip U1. The RX port of the stirring detection unit PM50S is connected to the first terminal of resistor R13. The second terminal of resistor R13 is connected to the collector of transistor Q6, and the emitter of transistor Q6 is grounded. The first terminal of resistor R14 is connected to a +3.3V power supply. The second terminal of resistor R14 is connected to the collector of transistor Q5, and the emitter of transistor Q5 is grounded. The base of transistor Q5 is connected to the second terminal of resistor R16. The first terminal of resistor R16 is connected to the P32 port of the main control chip U1. The first terminal of resistor R15 is connected to a +3.3V power supply. The second terminal of resistor R15 is connected to the collector of transistor Q6, and the base of transistor Q6 is connected to the second terminal of resistor R14.

6. The multi-speed smoothie machine based on motor current regulation function according to claim 1, characterized in that: The ice-making detection module (5) includes resistors R17, R18, R19, transistors Q7, Q8, R44, R20, R21, transistors Q9, Q10, and an ice-making detection unit CPJK. The ice-making detection unit CPJK is used to detect the operating current of the compressor motor M2. The T port of the ice-making detection unit CPJK is connected to the base of transistor Q7, the emitter of transistor Q7 is grounded, the collector of transistor Q7 is connected to the second terminal of resistor R17, the first terminal of resistor R17 is connected to the +5V power supply, the first terminal of resistor R18 is connected to the +5V power supply, the second terminal of resistor R18 is connected to the collector of transistor Q8, the base of transistor Q8 is connected to the second terminal of resistor R17, the emitter of transistor Q8 is grounded, the first terminal of resistor R19 is connected to the second terminal of resistor R18, and the second terminal of resistor R19 is connected to the P26 port of the main control chip U1. The R port of the ice-making detection unit CPJK is connected to the collector of transistor Q10, and the emitter of transistor Q10 is grounded. The first end of resistor R44 is connected to a +3.3V power supply, and the second end of resistor R44 is connected to the base of transistor Q10. The first end of resistor R20 is connected to a +3.3V power supply, and the second end of resistor R20 is connected to the collector of transistor Q10. The first end of resistor R21 is connected to the P27 port of the main control chip U1, and the second end of resistor R21 is connected to the base of transistor Q9. The collector of transistor Q9 is connected to the second end of resistor R44, and transistor Q9 is grounded.

7. The multi-speed smoothie machine based on motor current regulation function according to claim 1, characterized in that: The touch screen module (6) includes resistors R22 and R23, transceiver chip U2, capacitors C3 and C4, resistors R24 and R25, diodes D1, R26, and R27, diode D2, and socket CN2. Diodes D1 and D2 are Zener diodes. The touch screen is connected to socket CN2. The transceiver chip U2 is an SP3485. Resistor R22's first terminal is connected to port P33 of the main control chip U1, and its second terminal is connected to port RO of the transceiver chip U2. Resistor R23's first terminal is connected to port P34 of the main control chip U1, and its second terminal is connected to port DI of the transceiver chip U2. The RE and DE ports of the transceiver chip U2 are connected to a +5V power supply. Capacitor C3's first terminal is grounded, and its second terminal is connected to a +5V power supply. Capacitor C4's first terminal is grounded, and its second terminal is connected to a +5V power supply. The VCC port of the transceiver chip U2 is connected to a +5V power supply, and the GND port of the transceiver chip U2 is also connected to a +5V power supply. With the port grounded, the B port of transceiver chip U2 is connected to the first terminal of resistor R25, the A port of transceiver chip U2 is connected to the first terminal of resistor R27, the second terminals of resistor R25 and R27 are connected to different ports of socket CN2, the first terminal of resistor R24 ​​is grounded, the second terminal of resistor R24 ​​is connected to the first terminal of resistor R25, the first terminal of diode D1 is grounded, the second terminal of diode D1 is connected to the first terminal of resistor R25, the first terminal of resistor R26 is connected to the first terminal of resistor R27, the second terminal of resistor R26 is grounded, the first terminal of diode D2 is connected to the first terminal of resistor R27, and the second terminal of diode D2 is grounded.

8. The multi-speed smoothie machine based on motor current regulation function according to claim 1, characterized in that: The power module (7) includes a rectifier unit (70), a first step-down unit (71), a second step-down unit (72) and a third step-down unit (73) connected in sequence, and the power module (7) is used to provide power at different voltages; The rectifier unit (70) includes a fuse F, a varistor ZR, a capacitor C5, a resistor R27, a resistor R28, a rectifier bridge, a capacitor C6, a filter LF, and a capacitor C7. The first terminal of fuse F is connected to the AC live wire ACL. The first terminal of varistor ZR is connected to the second terminal of fuse F, and the second terminal of varistor ZR is connected to the AC neutral wire ACN. The first terminal of capacitor C5 is connected to the first terminal of varistor ZR, and the second terminal of capacitor C5 is connected to the second terminal of varistor ZR. The first terminal of resistor R27 is connected to the first terminal of capacitor C5, the second terminal of resistor R27 is connected to the first terminal of resistor R28, and the second terminal of resistor R28 is connected to the second terminal of capacitor C5. The two input terminals of the rectifier bridge are connected to the two ends of capacitor C5, and the two output terminals of the rectifier bridge are connected to the two ends of capacitor C6. The first terminal of filter LF is connected to the first terminal of capacitor C6, the third terminal of filter LF is connected to the second terminal of capacitor C6, the second terminal of filter LF is connected to the first terminal of capacitor C7, the fourth terminal of filter LF is connected to the second terminal of capacitor C7, and the second terminal of capacitor C7 is grounded.

9. The multi-speed smoothie machine based on motor current regulation function according to claim 8, characterized in that: The first step-down unit (71) includes resistors R29 and R30, capacitors C8 and C9, resistors R31, R32, and R33, diodes D3, R34, and D4, control chip U3, resistors R35 and R36, capacitor C12, optocoupler 817, resistors R39 and R40, a first primary coil, a second primary coil, a secondary coil, diode D5, capacitor C10, resistors R37 and C11, resistors R38 and R43, capacitor C13, resistor R41, voltage regulator TL431, and resistor R42. The control chip U3 is model CR5269S. The first terminal of resistor R29 is connected to the first terminal of capacitor C7. The second terminal of resistor R29 is connected to the first terminal of resistor R30. The second terminal of resistor R30 is connected to the first terminal of capacitor C8. The second terminal of capacitor C8 is grounded. The first terminal of capacitor C9 is connected to the first terminal of resistor R29. The first terminal of resistor R31 is connected to the first terminal of capacitor C9. The second terminal of resistor R31 is connected to the second terminal of capacitor C9. The first terminal of resistor R32 is connected to the first terminal of resistor R31. The second terminal of resistor R32 is connected to the second terminal of resistor R31. The first terminal of resistor R33 is connected to the second terminal of resistor R32. The first terminal of the first primary coil is connected to the first terminal of capacitor C7. The second terminal of the first primary coil is connected to the positive terminal of diode D3. Diode D3... The negative terminal is connected to the second terminal of resistor R33. The first terminal of the second primary coil is connected to the positive terminal of diode D4. The second terminal of the second primary coil is grounded. The negative terminal of diode D4 is connected to the second terminal of resistor R34. The first terminal of resistor R34 is connected to the second terminal of resistor R30. The VDD port of control chip U3 is connected to the first terminal of resistor R34. The GND port of control chip U3 is grounded. The SENSE port of control chip U3 is connected to the first terminal of resistor R35. The second terminal of resistor R35 is grounded. The first terminal of resistor R36 is connected to the first terminal of resistor R35. The second terminal of resistor R36 is grounded. The DRAIN port of control chip U3 is connected to the positive terminal of diode D3. The first terminal of the secondary coil... Connect the positive terminal of diode D5 to the ground, the second terminal of the secondary coil to the ground, the negative terminal of diode D5 to the first terminal of capacitor C11, the second terminal of capacitor C11 to the ground, the first terminal of resistor R38 to the first terminal of capacitor C11, the second terminal of resistor R38 to the ground, the first terminal of resistor R37 to the positive terminal of diode D5, the second terminal of resistor R37 to the first terminal of capacitor C10, the second terminal of capacitor C10 to the negative terminal of diode D5, the FB port of control chip U3 to the collector of optocoupler 817, the emitter of optocoupler 817 to the ground, the first terminal of capacitor C12 to the collector of optocoupler 817, the second terminal of capacitor C12 to the ground, and the first terminal of resistor R39 to the negative terminal of diode D5. The second terminal of resistor R39 is connected to the anode of optocoupler 817. The first terminal of resistor R40 is connected to the first terminal of resistor R39. The second terminal of resistor R40 is connected to the cathode of optocoupler 817. The first terminal of capacitor C13 is connected to the second terminal of resistor R40. The second terminal of capacitor C13 is connected to the first terminal of resistor R41. The second terminal of resistor R41 is connected to the second terminal of resistor R43. The first terminal of resistor R43 is connected to the negative terminal of diode D5. The anode of voltage regulator TL431 is grounded. The cathode of voltage regulator TL431 is connected to the second terminal of resistor R40. The reference terminal of voltage regulator TL431 is connected to the second terminal of resistor R43. The first terminal of resistor R42 is grounded. The second terminal of resistor R42 is connected to the second terminal of resistor R43.

10. The multi-speed smoothie machine based on motor current regulation function according to claim 9, characterized in that: The second step-down unit (72) includes capacitors C16, C17, C18, and C19, and a voltage regulator chip U5, model number LM78M05. The first terminal of capacitor C16 is connected to the negative terminal of diode D5, and the second terminal of capacitor C16 is grounded. The first terminal of capacitor C17 is connected to the first terminal of capacitor C16, and the second terminal of capacitor C17 is grounded. The VIN port of voltage regulator chip U5 is connected to the first terminal of capacitor C17, and the GND port of voltage regulator chip U5 is grounded. The VOUT port of voltage regulator chip U5 is connected to the first terminal of capacitor C18, and the second terminal of capacitor C18 is grounded. The first terminal of capacitor C19 is connected to the first terminal of capacitor C18, and the second terminal of capacitor C19 is grounded. The third step-down unit (73) includes capacitor C20, capacitor C21 and voltage regulator chip U6, the voltage regulator chip U6 being model AMS1117; The first terminal of capacitor C20 is connected to the first terminal of capacitor C19, and the second terminal of capacitor C20 is grounded. The VIN port of voltage regulator chip U6 is connected to the first terminal of capacitor C20, the GND port of voltage regulator chip U6 is grounded, the VOUT port of voltage regulator chip U6 is connected to the first terminal of capacitor C21, and the second terminal of capacitor C21 is grounded.

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