An ice maker

Abstract

This utility model relates to the field of ice maker technology, and more particularly to an ice maker in which a power conversion module is electrically connected to a control core module, a sensor detection module, an actuator drive module, a display and interaction module, and a communication interface module, respectively, for providing power; the control core module is electrically connected to the sensor detection module, actuator drive module, display and interaction module, and communication interface module, respectively, for processing signals and coordinating the operation of each module; the sensor detection module is used to collect status signals, including temperature and water level, and transmit them to the control core module; the actuator drive module is used to drive components including a compressor, fan, and heating element; the display and interaction module is used to display the operating status in real time and receive user operation commands and transmit them to the control core module; the communication interface module is used to support external device connection or network communication. This utility model solves the technical problem of existing ice makers having low functionality and resulting in a poor user experience.

Description

Technical Field

[0001] This utility model relates to the field of ice maker technology, and in particular to an ice maker. Background Technology

[0002] Ice makers are essential products for hot weather, widely used in catering, medical, and supermarket settings. Their ability to quickly make and stably supply ice directly impacts user experience. However, existing ice makers have several shortcomings in practical applications: traditional models have long ice-making cycles, making it difficult to meet peak-hour ice demand; and the mismatch between the compressor and fan leads to high energy consumption. Some devices lack precise sensor control, making them prone to problems such as overflowing ice or dry burning due to insufficient water, affecting operational safety. The lack of communication functions prevents remote monitoring or program upgrades, limiting their applicability. Furthermore, most ice makers have low integration of actuator drive circuits, with independent control logic for each component, making them susceptible to interference and causing fluctuations in ice-making efficiency. Utility Model Content

[0003] The purpose of this invention is to propose an ice maker to solve the technical problem that existing ice makers have poor capabilities in making ice quickly and providing stable ice supply, resulting in a poor user experience.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An ice maker includes a power conversion module, a control core module, a sensor detection module, an actuator drive module, a display and interaction module, and a communication interface module;

[0006] The power conversion module is electrically connected to the control core module, sensor detection module, actuator drive module, display and interaction module and communication interface module respectively, and is used to provide power to each module.

[0007] The control core module is electrically connected to the sensor detection module, actuator drive module, display and interaction module and communication interface module respectively, and is used to process signals and coordinate the work of each module.

[0008] The sensor detection module is used to collect status signals, including temperature and water level, and transmit them to the control core module.

[0009] The actuator drive module is used to drive components including a compressor, a fan, and a heating wire;

[0010] The display and interaction module is used to display the running status in real time and to receive user operation commands and transmit them to the control core module;

[0011] The communication interface module is used to support external device connections or network communication.

[0012] Preferably, the power conversion module includes an AC input submodule, a rectification and filtering submodule, a power conversion submodule, and a voltage regulation output submodule connected in sequence;

[0013] The AC input submodule includes a live wire terminal ACL, a neutral wire terminal ACN, a fuse F1, a common mode inductor L1, a variable resistor ZR1, a resistor R1, a resistor R2, a capacitor CX1, and a capacitor CX4.

[0014] The live wire terminal ACL and the neutral wire terminal ACN are connected to 220V AC power. The live wire terminal ACL is connected to one end of the fuse F1, and the other end of the fuse F1 is connected to the second end of the common mode inductor L1. The neutral wire terminal ACN is connected to the third end of the common mode inductor L1. The second and third ends of the common mode inductor L1 are respectively one end of the two coils of the common mode inductor L1. The two ends of the variable resistor ZR1 and the two ends of the capacitor CX1 are respectively connected to the second and third ends of the common mode inductor. One end of the resistor R1 is connected in series with one end of the resistor R2. The other ends of the resistor R1 and the other ends of the resistor R2 are respectively connected to the second and third ends of the common mode inductor. The two ends of the capacitor CX4 are respectively connected to the first and fourth ends of the common mode inductor.

[0015] The rectifier and filter submodule includes a rectifier bridge DB1, a filter capacitor EC1, a filter capacitor EC2, and an inductor L2;

[0016] The first and third terminals of the rectifier bridge DB1 are connected to the fourth and first terminals of the common mode inductor, respectively. The fourth terminal of the rectifier bridge DB1 is connected to the positive terminal of the filter capacitor EC1 and one end of the inductor L2. The other end of the inductor L2 is connected to the positive terminal of the filter capacitor EC2. The second terminal of the rectifier bridge DB1, the negative terminal of the filter capacitor EC1, and the negative terminal of the filter capacitor EC2 are all grounded.

[0017] The power conversion submodule includes a power conversion chip U3 and a transformer T1;

[0018] The power conversion chip U3 is model AP8012 SOP8. The transformer T1 includes two sets of secondary coils and one set of primary coils. The SW terminal of the power conversion chip U3 is connected to one of the primary coils of the transformer T1. The VCC terminal of the power conversion chip U3 is connected to the other secondary coil of the transformer T1. The VCC and COMP terminals of the power conversion chip U3 are also connected to one end of the primary coil of the transformer T1 through an optical fiber coupler. The GND terminal of the power conversion chip U3 is grounded. The two ends of the primary coil of the transformer T1 are connected in parallel with a filter capacitor EC4 and a capacitor C4. The transformer T1 is connected to the 12V output terminal.

[0019] The voltage regulation output submodule includes a voltage regulation output chip U4;

[0020] The voltage regulator chip U4 is model XL1509-SOP8. The VIN terminal of the voltage regulator chip U4 is connected to the 12V output terminal. The SW terminal of the voltage regulator chip U4 is connected to one end of the inductor L3 and one end of the diode D4. The FB terminal of the voltage regulator chip U4, the other end of the inductor L3, and the positive terminal of the filter capacitor EC5 are connected to the 5V output terminal. The ON / OFF terminal and GND terminal of the voltage regulator chip U4, the negative terminal of the filter capacitor EC5, and the other end of the diode D4 are all grounded.

[0021] Preferably, the control core module includes a control core chip U1, the model of which is CALQFP32. The common ground terminal VSS of the control core chip U1 is grounded, and the power connection terminal VDD of the control core chip U1 is connected to a 5V voltage. The power connection terminal VDD of the control core chip U1 is connected in parallel with one end of capacitor EC1 and one end of capacitor C1, and the other end of capacitor EC1 and the other end of capacitor C1 are grounded.

[0022] Preferably, the sensor detection module includes a sensor socket CN1, which is used to connect a temperature sensor and a water level sensor;

[0023] The first end of the sensor socket CN1 is connected to the resistor R22. The other end of the resistor R22 is connected to one end of the button RL and one end of the capacitor C6. The other end of the button RL and the other end of the capacitor C6 are both grounded. The second, third, fourth, fifth, sixth and seventh ends of the sensor socket CN1 are all connected to the control core chip U1. The eighth end of the sensor socket CN1 is grounded.

[0024] Preferably, the actuator drive module includes a compressor drive submodule, a de-icing heating wire drive submodule, a fan start / stop drive submodule, and a fan speed drive submodule;

[0025] The compressor drive submodule includes a relay RL1, a transistor Q4, and a diode D7. The base of transistor Q4 is connected to the compressor control signal output terminal PTC1 of the control core chip U1 through a resistor R11, and the base of transistor Q4 is grounded through a resistor R13. The emitter of transistor Q4 is grounded, and the collector of transistor Q4 is connected to one end of the coil of relay RL1 and the positive terminal of diode D7. The other end of the coil of relay RL1 and the negative terminal of diode D7 are both connected to a 12V voltage. The common terminal of relay RL1 is connected to the power supply terminal ACL of the power conversion module. The normally open contact of relay RL1 and the power supply terminal ACL of the power conversion module are connected in series in the power supply circuit of the compressor.

[0026] The de-icing heating wire drive submodule includes a relay RL2, a transistor Q5, and a diode D8. The base of transistor Q5 is connected to the de-icing heating wire control signal output terminal PTC2 of the control core chip U1 through a resistor R12, and the base of transistor Q5 is grounded through a resistor R14. The emitter of transistor Q5 is also grounded.

[0027] The collector of the transistor Q5 is connected to one end of the coil of the relay RL2 and the positive terminal of the diode D8, respectively. The other end of the coil of the relay RL2 and the negative terminal of the diode D8 are both connected to a 12V voltage.

[0028] The common terminal of the relay RL2 is connected to the power supply terminal ACL of the power conversion module, and the normally open contact of the relay RL2 is connected in series in the power supply circuit of the de-icing heating wire.

[0029] The fan start / stop drive submodule includes a relay RL3, a transistor Q3, and a diode D5. The base of transistor Q3 is connected to the fan control signal output terminal FAN of the control core chip U1 through a resistor R10, and the base of transistor Q3 is grounded through a resistor R9. The emitter of transistor Q3 is also grounded. The collector of transistor Q3 is connected to one end of the coil of relay RL3 and the positive terminal of diode D5. The other end of the coil of relay RL3 and the negative terminal of diode D5 are both connected to a 12V voltage. The common terminal of relay RL3 is connected to the power supply terminal ACL of the power conversion module, and the normally open contact of relay RL3 is connected in series in the power supply circuit of the fan motor.

[0030] The fan speed drive submodule includes a fan socket FAN and a transistor Q2. The fan socket FAN is used to connect the fan. The fourth terminal of the fan socket FAN is grounded. The first terminal of the fan socket FAN is connected to a 10V voltage. The second terminal of the fan socket FAN is connected to one end of resistor R21 and one end of capacitor C5 through resistor R16. One end of resistor R21 and one end of resistor R20 are both connected to the collector of transistor Q2. The other end of resistor R20 is connected to a 10V voltage. The base of transistor Q2 is connected to one end of resistor R18 and one end of resistor R9. The other end of resistor R18 is connected to the fan speed control signal output terminal PWM of the control core chip U1. The other ends of capacitor C5, resistor R19, and the emitter of transistor Q2 are all grounded.

[0031] Preferably, the display and interaction module includes a display screen submodule, a button submodule, a buzzer submodule, and a display and interaction driver submodule;

[0032] The display screen submodule includes multiple display screens and display screen circuits, and the multiple display screens are connected to the display and interaction driving submodule.

[0033] The button submodule includes multiple buttons, and the multiple buttons are connected to the control core chip U1 through a one-to-one current-limiting resistor;

[0034] The buzzer submodule includes a buzzer BUZ and a current-limiting resistor Rb. One end of the buzzer BUZ is connected to the buzzer connection terminal BUZ of the control core chip U1 through the current-limiting resistor Rb, and the other end of the buzzer BUZ is grounded.

[0035] The display and interaction driver submodule includes a display and interaction driver chip U2, which is a TM1640. The DIN and SCLK terminals of the display and interaction driver chip U2 are connected to the data terminal DIN and clock terminal SCLK of the control core chip U1, respectively. The VDD terminal of the display and interaction driver chip U2 is connected to a 5V voltage.

[0036] Preferably, the communication interface module includes an external device connection submodule and a network communication submodule;

[0037] The external device connection submodule includes a socket WS, which is used for connecting external devices. The two connection terminals of the socket WS are respectively connected to the connection control terminal WS1 and the connection control terminal WS2 of the control core chip U1. The socket WS is connected to a 5V voltage.

[0038] The network communication submodule includes a socket WIFI, which is used for network communication. The two connection terminals of the socket WIFI are respectively connected to the connection control terminal TX and the connection control terminal RX of the control core chip U1, and the socket WIFI is grounded.

[0039] One of the above technical solutions has the following beneficial effects:

[0040] 1. High efficiency and energy saving: By controlling the core module to coordinate the matching operation of the compressor and fan, and combining the sensors for real-time adjustment, the ice-making cycle is shortened, energy consumption is reduced, and the problems of low efficiency and high energy consumption of traditional models are solved.

[0041] 2. Safe and reliable: The sensor detection module accurately monitors the water level and temperature, preventing ice overflow or dry burning due to lack of water. Combined with the protection circuit of the actuator drive module, it improves operational safety.

[0042] 3. Flexible expansion: The communication interface module supports external connections and network communication, enabling remote monitoring and program upgrades, and adapting to various scenario requirements;

[0043] 4. Stable and anti-interference: Modular design improves the integration of actuator drive circuit, reduces interference between components, and ensures stable ice-making efficiency. Attached Figure Description

[0044] Figure 1 This is a schematic diagram illustrating the principle of an ice maker according to this utility model;

[0045] Figure 2 This is a schematic diagram of the power conversion module in an ice maker according to the present invention;

[0046] Figure 3 This is a schematic diagram of the structure of the control core module in an ice maker according to this utility model;

[0047] Figure 4 This is a schematic diagram of the structure of a sensor detection module in an ice maker according to the present invention;

[0048] Figure 5 This is a schematic diagram of the actuator drive module in an ice maker according to the present invention;

[0049] Figure 6 This is a schematic diagram of the display and interaction module in an ice maker according to the present invention;

[0050] Figure 7 This is a schematic diagram of the communication interface module in an ice maker according to the present invention;

[0051] In the attached diagram: Power conversion module 1, AC input submodule 11, rectification and filtering submodule 12, power conversion submodule 13, voltage regulation output submodule 14, control core module 2, sensor detection module 3, actuator drive module 4, compressor drive submodule 41, de-icing heating wire drive submodule 42, fan start / stop drive submodule 43, fan speed drive submodule 44, display and interaction module 5, display screen submodule 51, button submodule 52, buzzer submodule 53, display and interaction drive submodule 54, communication interface module 6, external device connection submodule 61, network communication submodule 62. Detailed Implementation

[0052] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] An ice maker includes a power conversion module 1, a control core module 2, a sensor detection module 3, an actuator drive module 4, a display and interaction module 5, and a communication interface module 6.

[0057] The power conversion module 1 is electrically connected to the control core module 2, sensor detection module 3, actuator drive module 4, display and interaction module 5 and communication interface module 6 respectively, and is used to provide power to each module;

[0058] The control core module 2 is electrically connected to the sensor detection module 3, the actuator drive module 4, the display and interaction module 5, and the communication interface module 6 respectively, and is used to process signals and coordinate the work of each module.

[0059] The sensor detection module 3 is used to collect status signals, including temperature and water level, and transmit them to the control core module 2.

[0060] The actuator drive module 4 is used to drive components including a compressor, a fan, and a heating wire;

[0061] The display and interaction module 5 is used to display the running status in real time and to receive user operation instructions and transmit them to the control core module 2.

[0062] The communication interface module 6 is used to support external device connections or network communication.

[0063] like Figure 1-7 As shown, this ice maker achieves efficient and intelligent operation through modular collaboration: the power conversion module 1 converts 220V AC power into low-voltage DC power required by each module to power the system; the sensor detection module 3 collects status signals through temperature sensors (such as NTC and PTC) and water level sensors, and transmits them to the control core module 2 in real time; the control core module 2, acting as the "central hub," processes the sensor signals and sends commands to the actuator drive module 4 to drive the compressor for cooling, the fan for heat dissipation, and the heating wire for ice removal; the display and interaction module 5 displays the operating status (such as water temperature and water level) in real time and receives user operation commands (such as ice quantity selection) and feeds them back to the control core; the communication interface module 6 supports external device connection or network communication, enabling extended functions such as remote monitoring. All modules, through logical coordination by the control core, form a complete closed loop of "detection-decision-execution-interaction".

[0064] In summary, the beneficial effects of this ice maker include:

[0065] 1. High efficiency and energy saving: By controlling the core module 2 to coordinate the matching operation of the compressor and fan, and combining the sensors for real-time adjustment, the ice-making cycle is shortened, energy consumption is reduced, and the problems of low efficiency and high energy consumption of traditional models are solved.

[0066] 2. Safe and reliable: The sensor detection module 3 accurately monitors the water level and temperature to prevent ice overflow or dry burning due to lack of water. Combined with the protection circuit of the actuator drive module 4, it improves the safety of operation.

[0067] 3. Flexible expansion: Communication interface module 6 supports external connection and network communication, enabling remote monitoring and program upgrades, and adapting to multiple scenario requirements;

[0068] 4. Stable and anti-interference: Modular design improves the integration of actuator drive circuit, reduces interference between components, and ensures stable ice-making efficiency.

[0069] To further explain, the power conversion module 1 includes an AC input submodule 11, a rectification and filtering submodule 12, a power conversion submodule 13, and a voltage regulation output submodule 14 connected in sequence.

[0070] The AC input submodule 11 includes a live wire terminal ACL, a neutral wire terminal ACN, a fuse F1, a common mode inductor L1, a variable resistor ZR1, a resistor R1, a resistor R2, a capacitor CX1, and a capacitor CX4.

[0071] The live wire terminal ACL and the neutral wire terminal ACN are connected to 220V AC power. The live wire terminal ACL is connected to one end of the fuse F1, and the other end of the fuse F1 is connected to the second end of the common mode inductor L1. The neutral wire terminal ACN is connected to the third end of the common mode inductor L1. The second and third ends of the common mode inductor L1 are respectively one end of the two coils of the common mode inductor L1. The two ends of the variable resistor ZR1 and the two ends of the capacitor CX1 are respectively connected to the second and third ends of the common mode inductor. One end of the resistor R1 is connected in series with one end of the resistor R2. The other ends of the resistor R1 and the other ends of the resistor R2 are respectively connected to the second and third ends of the common mode inductor. The two ends of the capacitor CX4 are respectively connected to the first and fourth ends of the common mode inductor.

[0072] The rectifier and filter submodule 12 includes a rectifier bridge DB1, a filter capacitor EC1, a filter capacitor EC2, and an inductor L2;

[0073] The first and third terminals of the rectifier bridge DB1 are connected to the fourth and first terminals of the common mode inductor, respectively. The fourth terminal of the rectifier bridge DB1 is connected to the positive terminal of the filter capacitor EC1 and one end of the inductor L2. The other end of the inductor L2 is connected to the positive terminal of the filter capacitor EC2. The second terminal of the rectifier bridge DB1, the negative terminal of the filter capacitor EC1, and the negative terminal of the filter capacitor EC2 are all grounded.

[0074] The power conversion submodule 13 includes a power conversion chip U3 and a transformer T1;

[0075] The power conversion chip U3 is model AP8012 SOP8. The transformer T1 includes two sets of secondary coils and one set of primary coils. The SW terminal of the power conversion chip U3 is connected to one of the primary coils of the transformer T1. The VCC terminal of the power conversion chip U3 is connected to the other secondary coil of the transformer T1. The VCC and COMP terminals of the power conversion chip U3 are also connected to one end of the primary coil of the transformer T1 through an optical fiber coupler. The GND terminal of the power conversion chip U3 is grounded. The two ends of the primary coil of the transformer T1 are connected in parallel with a filter capacitor EC4 and a capacitor C4. The transformer T1 is connected to the 12V output terminal.

[0076] It should be noted that the specific circuit connections of the power conversion submodule 13 also include other electronic components, as shown in the attached diagram.

[0077] The voltage regulation output submodule 14 includes a voltage regulation output chip U4;

[0078] The voltage regulator chip U4 is model XL1509-SOP8. The VIN terminal of the voltage regulator chip U4 is connected to the 12V output terminal. The SW terminal of the voltage regulator chip U4 is connected to one end of the inductor L3 and one end of the diode D4. The FB terminal of the voltage regulator chip U4, the other end of the inductor L3, and the positive terminal of the filter capacitor EC5 are connected to the 5V output terminal. The ON / OFF terminal and GND terminal of the voltage regulator chip U4, the negative terminal of the filter capacitor EC5, and the other end of the diode D4 are all grounded.

[0079] like Figure 2 As shown, the functional logic of each submodule of power conversion module 1 is further explained:

[0080] The AC input submodule 11 and the rectifier-filter submodule 12 work together: 220V AC power is connected via ACL (live wire) and ACN (neutral wire), and after being connected in series with fuse F1, high-frequency interference is suppressed by inductor L2 before entering the rectifier bridge DB1 to rectify the AC power into pulsating DC power. The rectified voltage is then preliminarily filtered by filter capacitors EC1 and EC2 to reduce voltage fluctuations.

[0081] The power conversion submodule 13 and the voltage regulation output submodule 14 work together: the power conversion chip U3 serves as the primary power conversion chip, with the VCC terminal connected to the rectified voltage. Through the SW terminal, it forms a step-down circuit with inductor L1 and diode D4 to convert the high-voltage DC power into 12V voltage, which powers the relay of the actuator drive module 4.

[0082] The voltage regulator chip U4 receives the 12V voltage output from the power conversion chip U3, inputs it through its VIN terminal, and further steps it down to 5V through the SW terminal and external components to power the control core module 2, sensor detection module 3, and display and interaction module 5.

[0083] To further explain, the control core module 2 includes a control core chip U1, which is a CALQFP32. The common ground terminal VSS of the control core chip U1 is grounded, and the power connection terminal VDD of the control core chip U1 is connected to a 5V voltage. The power connection terminal VDD of the control core chip U1 is connected in parallel with one end of capacitor EC1 and one end of capacitor C1, and the other end of capacitor EC1 and the other end of capacitor C1 are grounded.

[0084] like Figure 3 As shown, specifically, the core control chip U1 (CALQFP32) serves as the control center of the ice maker, and its working logic is based on stable power supply and signal interaction.

[0085] Power supply guarantee: The VDD terminal is connected to a 5V voltage and grounded after being connected in parallel with capacitor EC1 (e.g., 4.7uF / 400V) and capacitor C1 (e.g., 104). The electrolytic capacitor (EC1) filters out low-frequency ripple and the ceramic capacitor (C1) filters out high-frequency noise, providing a stable DC power supply for the chip; the VSS terminal is grounded to ensure that the potential reference of each module is consistent and to avoid signal interference.

[0086] Signal interaction and control: The remaining terminals of the control core chip U1 are connected to the remaining modules to realize the control and coordination between the modules.

[0087] To further explain, the sensor detection module 3 includes a sensor socket CN1, which is used to connect a temperature sensor and a water level sensor;

[0088] The first end of the sensor socket CN1 is connected to the resistor R22. The other end of the resistor R22 is connected to one end of the button RL and one end of the capacitor C6. The other end of the button RL and the other end of the capacitor C6 are both grounded. The second, third, fourth, fifth, sixth and seventh ends of the sensor socket CN1 are all connected to the control core chip U1. The eighth end of the sensor socket CN1 is grounded.

[0089] like Figure 4 As shown, sensor detection module 3 integrates temperature and water level detection functions through socket CN1:

[0090] Terminal 1 of socket CN1, after being divided by resistor R22, forms a signal conditioning circuit with button RL (calibration button) and capacitor C6 (filtering function) to ensure stable signals from the connected temperature sensor and water level sensor; terminals 2-7 of socket CN1 are directly connected to the signal input pins of the control core chip U1 to transmit the collected raw temperature and water level signals to the control core chip U1; terminal 8 is grounded to ensure consistent signal reference potential.

[0091] Specifically, the temperature sensor (such as an NTC temperature sensor) converts temperature changes into a resistance signal via socket CN1. After processing by resistor R22 and capacitor C6, the signal is input to the control core chip U1. The control core chip U1 uses this signal to determine the ice-making / ice-removing stage and adjusts the operation of the compressor and heating element. The water level sensor (such as a float-type water level sensor) sends a water level signal to the control core chip U1 via socket CN1. The control core chip U1 controls water intake or shutdown based on the signal to prevent dry burning due to water shortage. The RL button can be used for sensor calibration to ensure detection accuracy.

[0092] To further explain, the actuator drive module 4 includes a compressor drive submodule 41, a de-icing heating wire drive submodule 42, a fan start / stop drive submodule 43, and a fan speed drive submodule 44.

[0093] The compressor drive submodule 41 includes a relay RL1, a transistor Q4, and a diode D7. The base of the transistor Q4 is connected to the compressor control signal output terminal PTC1 of the control core chip U1 through a resistor R11, and the base of the transistor Q4 is grounded through a resistor R13. The emitter of the transistor Q4 is grounded, and the collector of the transistor Q4 is connected to one end of the coil of the relay RL1 and the positive terminal of the diode D7. The other end of the coil of the relay RL1 and the negative terminal of the diode D7 are both connected to a 12V voltage. The common terminal of the relay RL1 is connected to the power supply terminal ACL of the power conversion module 1. The normally open contact of the relay RL1 and the power supply terminal ACL of the power conversion module 1 are connected in series in the power supply circuit of the compressor.

[0094] Specifically, one end is connected to the 220V AC live wire, the other end is connected to the compressor live wire input terminal, and the compressor neutral wire terminal is directly connected to the 220V AC neutral wire.

[0095] The de-icing heating wire drive submodule 42 includes a relay RL2, a transistor Q5, and a diode D8. The base of the transistor Q5 is connected to the de-icing heating wire control signal output terminal PTC2 of the control core chip U1 through a resistor R12, and the base of the transistor Q5 is grounded through a resistor R14. The emitter of the transistor Q5 is also grounded.

[0096] The collector of the transistor Q5 is connected to one end of the coil of the relay RL2 and the positive terminal of the diode D8, respectively. The other end of the coil of the relay RL2 and the negative terminal of the diode D8 are both connected to a 12V voltage.

[0097] The common terminal of the relay RL2 is connected to the power supply terminal ACL of the power conversion module 1, and the normally open contact of the relay RL2 is connected in series in the power circuit of the de-icing heating wire.

[0098] Specifically, one end is connected to the 220V AC live wire, the other end is connected to the heating wire input end, and the heating wire output end is directly connected to the 220V AC neutral wire.

[0099] The fan start / stop drive submodule 43 includes a relay RL3, a transistor Q3, and a diode D5. The base of the transistor Q3 is connected to the fan control signal output terminal FAN of the control core chip U1 through a resistor R10, and the base of the transistor Q3 is grounded through a resistor R9. The emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to one end of the coil of the relay RL3 and the positive terminal of the diode D5. The other end of the coil of the relay RL3 and the negative terminal of the diode D5 are both connected to a 12V voltage. The common terminal of the relay RL3 is connected to the power supply terminal ACL of the power conversion module 1, and the normally open contact of the relay RL3 is connected in series in the power supply circuit of the fan motor.

[0100] Specifically, one end is connected to the 220V AC live wire, the other end is connected to the live wire input terminal of the fan motor, and the neutral wire terminal of the fan motor is directly connected to the 220V AC neutral wire.

[0101] The fan speed drive submodule 44 includes a fan socket FAN and a transistor Q2. The fan socket FAN is used to connect the fan. The fourth terminal of the fan socket FAN is grounded. The first terminal of the fan socket FAN is connected to a 10V voltage. The second terminal of the fan socket FAN is connected to one end of resistor R21 and one end of capacitor C5 through resistor R16. One end of resistor R21 and one end of resistor R20 are both connected to the collector of transistor Q2. The other end of resistor R20 is connected to a 10V voltage. The base of transistor Q2 is connected to one end of resistor R18 and one end of resistor R9. The other end of resistor R18 is connected to the fan speed control signal output terminal PWM of the control core chip U1. The other ends of capacitor C5, resistor R19, and the emitter of transistor Q2 are all grounded.

[0102] like Figure 5 As shown, the functional logic of each sub-module of actuator driver module 4 is further explained:

[0103] Compressor drive submodule 41: When the control core chip U1 outputs a high level, transistor Q4 conducts, energizing the relay RL1 coil. This causes the normally open contact to close, allowing the compressor to connect to 220V and start cooling. When the control core chip U1 outputs a low level, transistor Q4 is cut off, causing the relay RL1 contact to open and the compressor to stop. Diode D7 absorbs the back electromotive force when the relay RL1 coil is de-energized, protecting transistor Q4.

[0104] Fan start / stop driver submodule 43: When the control core chip U1 outputs a high level, transistor Q3 conducts, energizing the coil of relay RL3, and the normally open contact closes to start the fan motor for heat dissipation; when the control core chip U1 outputs a low level, transistor Q3 is cut off, causing the RL3 contact to open and the fan to stop. Diode D5 is used to absorb the back electromotive force when the relay RL3 coil is de-energized, protecting transistor Q3.

[0105] Fan speed drive submodule 44: Works in conjunction with the basic fan start / stop submodule. The control core module 2, based on the temperature signal collected by the sensor detection module 3, first connects the main power supply of the fan through relay RL3, and then adjusts the fan speed through the PWM signal of transistor Q2, realizing dual control of "start / stop + speed adjustment".

[0106] Ice-removing heating wire drive submodule 42: After ice making is complete, when the control core chip U1 outputs a high level, transistor Q5 conducts, energizing the relay RL2 coil. The normally open contact then closes, energizing the heating wire to heat the ice mold. After ice removal is complete, when the control core chip U1 outputs a low level, transistor Q5 cuts off, opening the normally open contact of relay RL2 and stopping heating. Diode D8 protects transistor Q5 from the back electromotive force of the relay RL2 coil.

[0107] Each drive submodule achieves precise drive of different high-power actuators through the isolation design of "low-voltage control of high-voltage", and works independently without interfering with each other, which meets the functional requirements of "automatic ice making", "ice removal" and "energy-saving heat dissipation" in ice makers.

[0108] To further explain, the display and interaction module 5 includes a display screen submodule 51, a button submodule 52, a buzzer submodule 53, and a display and interaction driver submodule 54;

[0109] The display submodule 51 includes multiple displays (display SMG1, display SMG2, display SMG3, display SMG4) and display circuits, and the multiple displays are connected to the display and interaction driving submodule 54;

[0110] The button submodule 52 includes multiple buttons (button K1, button K2, button K3, button K4, button K5, button K6, button K7, button K8, button K9, button K10, button K11, and K12). The multiple buttons are connected to the control core chip U1 through corresponding current-limiting resistors (current-limiting resistors RK1, RK2, RK3, RK4, RK5, RK6, RK7, RK8, RK9, RK10, RK11, and RK12).

[0111] The buzzer submodule 53 includes a buzzer BUZ and a current-limiting resistor Rb. One end of the buzzer BUZ is connected to the buzzer connection terminal BUZ of the control core chip U1 through the current-limiting resistor Rb, and the other end of the buzzer BUZ is grounded.

[0112] The display and interaction driver submodule 54 includes a display and interaction driver chip U2, which is a TM1640. The DIN terminal and SCLK terminal of the display and interaction driver chip U2 are connected to the data terminal DIN and clock terminal SCLK of the control core chip U1, respectively. The VDD terminal of the display and interaction driver chip U2 is connected to a 5V voltage.

[0113] like Figure 6 As shown, the display submodule 51: SMG1-SMG4 displays are connected to the display and interaction driver chip U2 via a loop. The display and interaction driver U2 receives display commands from the control core chip U1 (CALQFP32) (transmitted via the DIN data terminal and SCLK clock terminal), and drives the SMG1-SMG4 displays to display the ice-making status (such as water temperature, water level, ice-making progress) in real time, meeting the requirement of real-time display of operating status.

[0114] Button submodule 52: Buttons K1-K12 are connected to the control core chip U1 through corresponding current-limiting resistors RK1-RK12. When the user operates the button, the voltage level signal generated by the resistor divider is transmitted to the control core chip U1 through the driver chip to realize the input of commands such as ice quantity selection and timer setting, thereby improving the convenience of operation.

[0115] Buzzer submodule 53: The buzzer BUZ is connected to the BUZ terminal of U1 via the current-limiting resistor Rb. When the sensor detects abnormalities such as full ice or water shortage, the control core chip U1 outputs a drive signal to make the buzzer BUZ sound an alarm, thus meeting the safety requirements for full ice and water shortage alarms.

[0116] Power supply for the driver chip: The VDD terminal of the display and interaction driver chip U2 is connected to a 5V voltage, sharing a stable power supply with the control core module 2 to ensure the synchronization of display and interaction signals.

[0117] To further explain, the communication interface module 6 includes an external device connection submodule 61 and a network communication submodule 62;

[0118] The external device connection submodule 61 includes a socket WS, which is used for connecting external devices. The two connection terminals of the socket WS are respectively connected to the connection control terminal WS1 and the connection control terminal WS2 of the control core chip U1. The socket WS is connected to a 5V voltage.

[0119] The network communication submodule 62 includes a socket WIFI, which is used for network communication. The two connection terminals of the socket WIFI are respectively connected to the connection control terminal TX and the connection control terminal RX of the control core chip U1, and the socket WIFI is grounded.

[0120] like Figure 7 As shown, the external device connection submodule 61 has a 5V socket WS that connects to the WS1 and WS2 control terminals of the control core chip U1 (CALQFP32) for connecting external devices (such as debugging tools and extended sensors). WS1 and WS2 serve as data transmission pins, enabling signal interaction between U1 and external devices (such as parameter debugging and data export), and the 5V power supply ensures stable operation of the external devices.

[0121] Network communication submodule 62: The socket is grounded for WIFI, and its two connection terminals are connected to the TX (transmitter) and RX (receiver) terminals of U1 respectively, for extending network communication functions (such as connecting to a WIFI module). U1 sends data through TX and receives data through RX, realizing wireless communication with the cloud platform or mobile APP (such as remotely monitoring the ice-making status and remotely starting and stopping the equipment). The grounding design reduces communication signal interference and ensures stable data transmission.

[0122] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An ice maker, characterized in that, It includes a power conversion module (1), a control core module (2), a sensor detection module (3), an actuator drive module (4), a display and interaction module (5), and a communication interface module (6); The power conversion module (1) is electrically connected to the control core module (2), sensor detection module (3), actuator drive module (4), display and interaction module (5) and communication interface module (6) respectively, and is used to provide power to each module; The control core module (2) is electrically connected to the sensor detection module (3), actuator drive module (4), display and interaction module (5) and communication interface module (6) respectively, and is used to process signals and coordinate the work of each module; The sensor detection module (3) is used to collect status signals including temperature and water level and transmit them to the control core module (2); The actuator drive module (4) is used to drive components including a compressor, a fan and a heating wire; The display and interaction module (5) is used to display the running status in real time and to receive user operation instructions and transmit them to the control core module (2); The communication interface module (6) is used to support external device connections or network communication.

2. An ice maker according to claim 1, characterized in that, The power conversion module (1) includes an AC input submodule (11), a rectification and filtering submodule (12), a power conversion submodule (13), and a voltage regulation output submodule (14) connected in sequence; The AC input submodule (11) includes a live wire terminal ACL, a neutral wire terminal ACN, a fuse F1, a common mode inductor L1, a variable resistor ZR1, a resistor R1, a resistor R2, a capacitor CX1, and a capacitor CX4. The live wire ACL and neutral wire ACN are connected to 220V AC power. The live wire ACL is connected to one end of the fuse F1, and the other end of the fuse F1 is connected to the second end of the common mode inductor L1. The neutral wire ACN is connected to the third end of the common mode inductor L1. The second and third ends of the common mode inductor L1 are respectively one end of the two coils of the common mode inductor L1. The two ends of the variable resistor ZR1 and the two ends of the capacitor CX1 are respectively connected to the second and third ends of the common mode inductor. One end of the resistor R1 is connected in series with one end of the resistor R2. The other ends of the resistor R1 and the other ends of the resistor R2 are respectively connected to the second and third ends of the common mode inductor. The two ends of the capacitor CX4 are respectively connected to the first and fourth ends of the common mode inductor. The rectifier and filter submodule (12) includes a rectifier bridge DB1, a filter capacitor EC1, a filter capacitor EC2 and an inductor L2; The first and third terminals of the rectifier bridge DB1 are connected to the fourth and first terminals of the common mode inductor, respectively. The fourth terminal of the rectifier bridge DB1 is connected to the positive terminal of the filter capacitor EC1 and one end of the inductor L2. The other end of the inductor L2 is connected to the positive terminal of the filter capacitor EC2. The second terminal of the rectifier bridge DB1, the negative terminal of the filter capacitor EC1, and the negative terminal of the filter capacitor EC2 are all grounded. The power conversion submodule (13) includes a power conversion chip U3 and a transformer T1; The power conversion chip U3 is model AP8012 SOP8. The transformer T1 includes two sets of secondary coils and one set of primary coils. The SW terminal of the power conversion chip U3 is connected to one of the primary coils of the transformer T1. The VCC terminal of the power conversion chip U3 is connected to the other secondary coil of the transformer T1. The VCC and COMP terminals of the power conversion chip U3 are also connected to one end of the primary coil of the transformer T1 through an optical fiber coupler. The GND terminal of the power conversion chip U3 is grounded. The two ends of the primary coil of the transformer T1 are connected in parallel with a filter capacitor EC4 and a capacitor C4. The transformer T1 is connected to the 12V output terminal. The voltage regulation output submodule (14) includes a voltage regulation output chip U4; The voltage regulator chip U4 is model XL1509-SOP8. The VIN terminal of the voltage regulator chip U4 is connected to the 12V output terminal. The SW terminal of the voltage regulator chip U4 is connected to one end of the inductor L3 and one end of the diode D4. The FB terminal of the voltage regulator chip U4, the other end of the inductor L3, and the positive terminal of the filter capacitor EC5 are connected to the 5V output terminal. The ON / OFF terminal and GND terminal of the voltage regulator chip U4, the negative terminal of the filter capacitor EC5, and the other end of the diode D4 are all grounded.

3. An ice maker according to claim 2, characterized in that, The control core module (2) includes a control core chip U1, the model of which is CALQFP32. The common ground terminal VSS of the control core chip U1 is grounded, and the power connection terminal VDD of the control core chip U1 is connected to a 5V voltage. The power connection terminal VDD of the control core chip U1 is connected in parallel with one end of the capacitor EC1 and one end of the capacitor C1. The other end of the capacitor EC1 and the other end of the capacitor C1 are grounded.

4. An ice maker according to claim 3, characterized in that, The sensor detection module (3) includes a sensor socket CN1, which is used to connect a temperature sensor and a water level sensor. The first end of the sensor socket CN1 is connected to the resistor R22. The other end of the resistor R22 is connected to one end of the button RL and one end of the capacitor C6. The other end of the button RL and the other end of the capacitor C6 are both grounded. The second, third, fourth, fifth, sixth and seventh ends of the sensor socket CN1 are all connected to the control core chip U1. The eighth end of the sensor socket CN1 is grounded.

5. An ice maker according to claim 3, characterized in that, The actuator drive module (4) includes a compressor drive submodule (41), a de-icing heating wire drive submodule (42), a fan start / stop drive submodule (43), and a fan speed drive submodule (44); The compressor drive submodule (41) includes a relay RL1, a transistor Q4, and a diode D7. The base of the transistor Q4 is connected to the compressor control signal output terminal PTC1 of the control core chip U1 through a resistor R11, and the base of the transistor Q4 is grounded through a resistor R13. The emitter of the transistor Q4 is grounded, and the collector of the transistor Q4 is connected to one end of the coil of the relay RL1 and the positive terminal of the diode D7. The other end of the coil of the relay RL1 and the negative terminal of the diode D7 are both connected to a 12V voltage. The common terminal of the relay RL1 is connected to the power supply terminal ACL of the power conversion module (1). The normally open contact of the relay RL1 and the power supply terminal ACL of the power conversion module (1) are connected in series in the power supply circuit of the compressor. The de-icing heating wire drive submodule (42) includes a relay RL2, a transistor Q5, and a diode D8. The base of the transistor Q5 is connected to the de-icing heating wire control signal output terminal PTC2 of the control core chip U1 through a resistor R12, and the base of the transistor Q5 is grounded through a resistor R14. The emitter of the transistor Q5 is also grounded. The collector of the transistor Q5 is connected to one end of the coil of the relay RL2 and the positive terminal of the diode D8, respectively. The other end of the coil of the relay RL2 and the negative terminal of the diode D8 are both connected to a 12V voltage. The common terminal of the relay RL2 is connected to the power supply terminal ACL of the power conversion module (1), and the normally open contact of the relay RL2 is connected in series in the power supply circuit of the de-icing heating wire. The fan start / stop drive submodule (43) includes a relay RL3, a transistor Q3, and a diode D5. The base of the transistor Q3 is connected to the fan control signal output terminal FAN of the control core chip U1 through a resistor R10, and the base of the transistor Q3 is grounded through a resistor R9. The emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to one end of the coil of the relay RL3 and the positive terminal of the diode D5. The other end of the coil of the relay RL3 and the negative terminal of the diode D5 are both connected to a 12V voltage. The common terminal of the relay RL3 is connected to the power supply terminal ACL of the power conversion module (1), and the normally open contact of the relay RL3 is connected in series in the power supply circuit of the fan motor. The fan speed drive submodule (44) includes a fan socket FAN and a transistor Q2. The fan socket FAN is used to connect the fan. The fourth terminal of the fan socket FAN is grounded. The first terminal of the fan socket FAN is connected to a 10V voltage. The second terminal of the fan socket FAN is connected to one end of resistor R21 and one end of capacitor C5 through resistor R16. One end of resistor R21 and one end of resistor R20 are both connected to the collector of transistor Q2. The other end of resistor R20 is connected to a 10V voltage. The base of transistor Q2 is connected to one end of resistor R18 and one end of resistor R9. The other end of resistor R18 is connected to the fan speed control signal output terminal PWM of the control core chip U1. The other end of capacitor C5, the other end of resistor R19, and the emitter of transistor Q2 are all grounded.

6. An ice maker according to claim 3, characterized in that, The display and interaction module (5) includes a display screen submodule (51), a button submodule (52), a buzzer submodule (53), and a display and interaction driver submodule (54); The display submodule (51) includes multiple displays and display circuits, and the multiple displays are connected to the display and interaction driving submodule (54); The button submodule (52) includes multiple buttons. The multiple buttons are connected to the control core chip U1 through current-limiting resistors that are connected in a one-to-one correspondence. The buzzer submodule (53) includes a buzzer BUZ and a current-limiting resistor Rb. One end of the buzzer BUZ is connected to the buzzer connection terminal BUZ of the control core chip U1 through the current-limiting resistor Rb, and the other end of the buzzer BUZ is grounded. The display and interaction driver submodule (54) includes a display and interaction driver chip U2, the model of which is TM1640. The connection terminal DIN and connection terminal SCLK of the display and interaction driver chip U2 are respectively connected to the data terminal DIN and the clock terminal SCLK of the control core chip U1. The VDD terminal of the display and interaction driver chip U2 is connected to a 5V voltage.

7. An ice maker according to claim 3, characterized in that, The communication interface module (6) includes an external device connection submodule (61) and a network communication submodule (62); The external device connection submodule (61) includes a socket WS, which is used for external device connection. The two connection terminals of the socket WS are respectively connected to the connection control terminal WS1 and the connection control terminal WS2 of the control core chip U1. The socket WS is connected to 5V voltage. The network communication submodule (62) includes a socket WIFI, which is used for network communication. The two connection terminals of the socket WIFI are respectively connected to the connection control terminal TX and the connection control terminal RX of the control core chip U1. The socket WIFI is grounded.

Images