Temperature control loop system of coffee machine

Abstract

The utility model discloses a temperature control loop system of a coffee machine, which comprises a water pump, a heating unit, a brewing unit, a beverage outlet unit, a main control unit and a beverage temperature detection feedback unit for detecting the temperature of a beverage in a beverage cup in real time, and the beverage temperature detection feedback unit comprises an infrared temperature sensor and a photoelectric detector; the main control unit adjusts the heating power parameter of the heating unit according to the real-time beverage temperature and controls the heating unit to operate; or the main control unit adjusts the flow parameter of the water pump and controls the water pump to operate, so that real-time adjustment and control of the drink cup outlet temperature are realized. The heating power of the hot water assembly and / or the steam assembly and the water supply flow of the water pump can be adjusted in real time according to temperature changes of drinks, real-time adjustment and control over the cup outlet temperature of the drinks are achieved, each cup of drinks produced by the coffee machine is within a proper preset temperature interval, the taste of the drinks is improved, and the coffee machine is suitable for popularization and application. And the consistency of the quality of the beverage is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine temperature control technical field, in particular to a coffee machine's temperature control loop system. BACKGROUND

[0002] The full automatic coffee machine on the market only adopts the traditional temperature sensor to detect the temperature of hot water, and the NTC of hot water electric heating disc / hot water boiler and the NTC of steam electric heating disc / steam boiler in the machine can only detect the local temperature in real time, but cannot detect the temperature of black coffee, milk coffee and other drinks made in real time. Therefore, when using the coffee machine to make drinks, especially continuously making drinks, due to the instability of the heating and water supply system of the coffee machine, the temperature of the drinks is prone to drop and warm water extraction occurs, which greatly affects the taste of the drinks, reduces the performance of the whole machine and customer satisfaction, and there is room for improvement. SUMMARY

[0003] To solve the above technical problems, one technical scheme of the utility model is as follows:

[0004] A temperature control loop system of a coffee machine is provided, which comprises:

[0005] A water pump for pumping a water source;

[0006] A heating unit comprising a hot water assembly and a steam assembly, the hot water assembly and the steam assembly are connected with the water pump respectively, the hot water assembly heats the water delivered by the water pump to generate hot water, and the steam assembly heats the water delivered by the water pump to generate steam;

[0007] A brewing unit connected with the heating unit, for brewing and extracting after pressing coffee bean powder into a powder cake;

[0008] A drink outlet unit connected with the heating unit and the brewing unit, for outputting drinks;

[0009] A main control unit electrically connected with the water pump, the heating unit and the brewing unit respectively;

[0010] It also includes a beverage temperature detection feedback unit for detecting the temperature of the beverage in the beverage cup in real time, which is electrically connected with the main control unit, and includes an infrared temperature sensor and a photoelectric detector, the infrared temperature sensor is used for capturing the infrared energy emitted by the beverage in real time, and the photoelectric detector is used for converting the captured infrared energy into an electrical signal and sending it to the main control unit, so that the main control unit converts the electrical signal into the real-time beverage temperature of the beverage; the main control unit adjusts the heating power parameter of the heating unit according to the real-time beverage temperature, and controls the heating unit according to the adjusted heating power parameter when making the next cup of coffee; or when the heating power parameter cannot be adjusted, the main control unit adjusts the flow parameter of the water pump, and controls the water pump according to the adjusted flow parameter when making the next cup of coffee, so as to realize the real-time adjustment and control of the beverage out-of-cup temperature.

[0011] In a preferred embodiment of the present application, the hot water assembly includes a hot water electric heating disc or a hot water boiler, the water inlet of the hot water electric heating disc or the hot water boiler is connected with the water pump, and the generated hot water is output through the water outlet of the hot water electric heating disc or the hot water boiler.

[0012] In a preferred embodiment of the present application, the hot water assembly further includes a hot water temperature detection feedback unit for detecting the hot water heating temperature of the hot water assembly in real time, and the hot water temperature detection feedback unit is connected with the main control unit to send the detected real-time hot water heating temperature to the main control unit.

[0013] In a preferred embodiment of the present application, the steam assembly includes a steam electric heating disc or a steam boiler, the water inlet of the steam electric heating disc or the steam boiler is connected with the water pump, and the generated steam is output through the water outlet of the steam electric heating disc or the steam boiler.

[0014] In a preferred embodiment of the present application, the steam assembly further includes a steam temperature detection feedback unit for detecting the steam heating temperature of the steam assembly in real time, and the steam temperature detection feedback unit is connected with the main control unit to send the detected real-time steam heating temperature to the main control unit.

[0015] In a preferred embodiment of the present application, the brewing unit includes a brewing cavity and a powder pressing mechanism for pressing coffee bean powder into a powder cake in the brewing cavity, the brewing cavity is connected with the hot water assembly and the beverage outlet unit respectively, so that the hot water output by the hot water assembly passes through the powder cake in the brewing cavity to generate coffee liquid, and the coffee liquid flows from the brewing cavity to the beverage outlet unit.

[0016] In a preferred embodiment of the utility model, still include milk frothing unit, milk frothing unit respectively with the steam assembly and the beverage outlet unit connection, make the steam assembly output steam enters milk frothing unit, to heat milk or beat milk froth.

[0017] In a preferred embodiment of the utility model, the beverage outlet unit includes beverage output casing and beverage output port, the beverage output port is arranged at the bottom of the beverage output casing, for discharging beverage.

[0018] In a preferred embodiment of the utility model, the bottom of the beverage output casing is provided with mounting holes for the infrared temperature sensor and the photoelectric detector respectively at a position close to the beverage output port, and the infrared temperature sensor and the photoelectric detector are arranged in the mounting holes respectively.

[0019] In a preferred embodiment of the utility model, it further includes a display screen, which is electrically connected to the main control unit and used for displaying real-time beverage temperature and other control information.

[0020] The utility model has the advantages that the heating power of the hot water assembly and / or the steam assembly and the water supply flow of the water pump can be adjusted in real time according to the temperature change of the beverage, the real-time adjustment and control of the beverage outlet temperature are realized, each cup of beverage produced by the coffee machine is within the appropriate preset temperature range, the taste of the beverage is improved, and the consistency of the beverage quality is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0022] Figure 1 It is a system structure schematic view of a preferred embodiment of the temperature control loop system of the coffee machine of the utility model;

[0023] Figure 2 It is a connection structure schematic view of the heating unit and the beverage outlet unit in a preferred embodiment of the temperature control loop system of the coffee machine of the utility model;

[0024] Figure 3 It is an explosion structure schematic view of the heating unit and the beverage outlet unit in a preferred embodiment of the temperature control loop system of the coffee machine of the utility model;

[0025] Figure 4 It is a flow schematic view of embodiment 1 in the utility model.

[0026] Figure 5 is a flowchart of embodiment 2 of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0028] Please refer to Figures 1-5 The present application comprises:

[0029] A temperature control loop system of a coffee machine comprises a water pump 1, a heating unit 2, a brewing unit 3, a beverage outlet unit 4, a main control unit 5 and a beverage temperature detection feedback unit 6. The heating unit 2 is connected with the brewing unit 3. The beverage outlet unit 4 is connected with the heating unit 2 and the brewing unit 3. The main control unit 5 is electrically connected with the water pump 1, the heating unit 2 and the brewing unit 3 respectively. The beverage temperature detection feedback unit 6 is electrically connected with the main control unit 5, for sending the detected real-time beverage temperature to the main control unit 5. The beverage temperature detection feedback unit 6 comprises an infrared temperature sensor 61 and a photoelectric detector 62. The infrared temperature sensor 61 is used for capturing the infrared energy emitted by the beverage in real time. The photoelectric detector 62 is used for converting the captured infrared energy into an electric signal and sending it to the main control unit 5, so that the main control unit 5 converts the electric signal to obtain the real-time beverage temperature of the beverage. The main control unit 5 adjusts the heating power parameter of the heating unit 2 according to the real-time beverage temperature, and controls the heating unit 2 during the production of the next cup of coffee according to the adjusted heating power. Or when the heating power parameter cannot be adjusted, the main control unit 5 adjusts the flow parameter of the water pump 1, and controls the water pump 1 during the production of the next cup of coffee according to the adjusted flow, so as to adjust and control the temperature of the beverage, so that the temperature of each cup of beverage remains stable.

[0030] Further, the water pump 1 comprises a pump body, an impeller and an impeller motor. The impeller motor drives the impeller to rotate in the pump body, so as to realize the delivery of water for the coffee machine. The impeller motor is connected with the main control unit 5. The main control unit 5 controls the rotating speed of the impeller motor and the impeller according to the water pump flow adjustment parameter, so as to adjust and control the water inlet amount of the water pump per unit time.

[0031] In some embodiments of the present application, the water inlet of the water pump 1 can be connected with an external water delivery mechanism or water source through a joint or a pipeline, or can be connected with a water storage mechanism or water source in the coffee machine.

[0032] Further, the heating unit 2 comprises a hot water assembly 21 for generating hot water and a steam assembly 22 for generating steam.

[0033] In some embodiments of the present application, the hot water assembly 21 comprises a hot water electric heating plate, a water inlet of the hot water electric heating plate being connected to the water pump through a water channel to heat the water delivered by the water pump to generate hot water, the generated hot water being discharged from a water outlet of the hot water electric heating plate.

[0034] In some embodiments of the present application, the hot water assembly 21 comprises a hot water boiler, a water inlet of the hot water boiler being connected to the water pump through a water channel to heat the water delivered by the water pump to generate hot water, the generated hot water being discharged from a water outlet of the hot water boiler.

[0035] In some embodiments of the present application, the hot water assembly further comprises a hot water temperature detection feedback unit 211 for detecting the hot water heating temperature of the hot water assembly in real time, the hot water temperature detection feedback unit 211 being connected to the main control unit 5 to send the detected real-time hot water heating temperature to the main control unit 5.

[0036] In some embodiments of the present application, the steam assembly 22 comprises a steam electric heating plate, a water inlet of the steam electric heating plate being connected to the water pump through a water channel to heat the water delivered by the water pump to generate steam, the generated steam being discharged from a water outlet of the steam electric heating plate.

[0037] In some embodiments of the present application, the steam assembly 22 comprises a steam boiler, a water inlet of the steam boiler being connected to the water pump through a water channel to heat the water delivered by the water pump to generate steam, the generated steam being discharged from a water outlet of the steam boiler.

[0038] In some embodiments of the present application, the steam assembly further comprises a steam temperature detection feedback unit 221 for detecting the steam heating temperature of the steam assembly in real time, the steam temperature detection feedback unit 221 being connected to the main control unit 5 to send the detected real-time steam heating temperature to the main control unit 5.

[0039] Further, the brewing unit 3 is connected to the heating unit 2 and the beverage outlet unit 4 respectively, for brewing and extracting coffee powder after being pressed into a powder cake.

[0040] In some embodiments of the present application, the brewing unit 3 comprises a brewing cavity and a powder pressing mechanism for pressing coffee powder into a powder cake in the brewing cavity, a water inlet of the brewing cavity being connected to the hot water assembly through a water channel, so that the hot water output by the hot water assembly passes through the powder cake in the brewing cavity to generate coffee liquid, a water outlet of the brewing cavity being connected to the beverage outlet unit through a water channel, so that the coffee liquid flows to the beverage outlet unit.

[0041] Further, the temperature control loop system further comprises a milk frothing unit 7, which comprises a container for storing milk or other beverage, and the steam output by the steam assembly 22 is connected to or extends into the container through a pipe in the beverage outlet unit 4 or the beverage outlet unit 4, so as to heat the milk or froth the milk by steam.

[0042] Optionally, the milk frothing unit 7 is independent of the coffee machine, and in this case, the container can be a special peripheral structure of the coffee machine, or a milk bottle or a milk frothing cup or other household items; or the milk frothing unit 7 is integrated in the coffee machine.

[0043] Optionally, the discharge port on the container can be connected to the beverage outlet unit through a pipe and a pump to realize automatic extraction of hot milk or milk froth and output through the beverage outlet unit.

[0044] Further, the beverage outlet unit 4 comprises a beverage output housing 41, a plurality of delivery pipes 42, and a plurality of beverage output ports, the beverage output ports are arranged at the bottom of the beverage output housing 41, one end of the delivery pipes 42 is connected to the beverage output ports, and the other end is connected to the hot water assembly 21 / steam assembly 22 / brewing unit 3 / milk frothing unit 7, so as to deliver different types of beverages and make the beverages output through the corresponding beverage output ports.

[0045] Optionally, the beverage output ports comprise a plurality of hot water output ports, coffee liquid output ports, steam output ports, hot milk output ports, and milk froth output ports.

[0046] In some embodiments of the present application, the main control unit 5 can adopt a chip or circuit structure with data processing and storage capabilities such as MCU.

[0047] In some embodiments of the present application, a display screen 8 is further included, which is connected to the main control unit 5 for displaying real-time beverage temperature and other control information. Optionally, the display screen 8 is arranged on the beverage outlet unit 4 or other positions of the coffee machine.

[0048] Specifically, when measuring the temperature, the beverage (such as black coffee, milk coffee, or hot water) in the measured object-beverage cup 9 emits infrared energy, which is collected by the optical system of the infrared temperature sensor 61 in its field of view, and the infrared energy is focused on the photodetector 62 to be converted into an electrical signal. The signal is converted into the temperature value of the measured target by the main control unit 5.

[0049] Optionally, the beverage temperature detection feedback unit 6 can be arranged below the beverage outlet unit or at the bottom of the beverage output housing 41; preferably, as Figures 2-3As shown, the beverage temperature detection feedback unit 6 is arranged at the bottom of the beverage output housing 41. Specifically, the bottom of the beverage output housing 41 is provided with two mounting holes 63 close to the beverage output port, and the infrared temperature sensor 61 and the photoelectric detector 62 are arranged in the mounting holes 63 respectively to more accurately obtain the temperature of the beverage.

[0050] When the temperature control loop system of the coffee machine detects and controls, the beverage temperature detection feedback unit 6 first detects the temperature change of the beverage in real time. When it is detected that the temperature of the beverage in the beverage cup 9 during the brewing process is lower than the preset temperature threshold, the beverage temperature detection feedback unit 6 feeds back the signal to the main control unit 5. The main control unit 5 first determines whether the heating power of the hot water assembly 21 needs to be increased according to the temperature of the hot water assembly 21. If it is monitored that the temperature is less than the threshold value such as 93℃, the heating power of the hot water assembly 21 is increased. If the heating power of the hot water assembly 21 cannot be increased, the main control unit determines whether the flow of the water pump needs to be reduced according to the real-time rotating speed of the water pump 1. If it is monitored that the real-time rotating speed is greater than the minimum rotating speed of the water pump 1, the rotating speed of the water pump 1 is reduced for low-frequency work, so as to reduce the water inflow per unit time to increase the temperature of the beverage and ensure the uniform taste of the beverage and the quality of the beverage.

[0051] Similarly, during the preparation of the milk coffee, the main control unit 5 can first control the temperature of the hot water assembly 21 and / or the steam assembly 22 to adjust, so as to increase the temperature of the beverage in the beverage cup 9. If the heating power of the hot water assembly 21 and / or the steam assembly 22 cannot be increased, the main control unit 5 increases the temperature of the beverage by reducing the flow of the water pump. Embodiment

[0052] When hot water or pure coffee liquid is prepared, the control steps of the temperature control loop system of the coffee machine include:

[0053] Step S1, according to the preset frequency or time interval, the beverage temperature detection feedback unit 6 obtains the real-time beverage temperature of the beverage in the beverage cup 9 in real time.

[0054] Step S2, obtain the preset beverage temperature threshold, and compare the beverage temperature threshold with the real-time beverage temperature to determine whether to control the temperature adjustment.

[0055] (2.1) When the real-time beverage temperature is greater than or equal to the beverage temperature threshold, no temperature control adjustment is performed, and the temperature detection of the beverage is continuously performed.

[0056] (2.2) When the real-time beverage temperature is less than the beverage temperature threshold, step S3 is performed.

[0057] Step S3, obtain the real-time hot water heating temperature of the hot water assembly 21 and the preset hot water heating temperature threshold, and compare the real-time hot water heating temperature with the hot water heating temperature threshold.

[0058] (3.1) When the real-time hot water heating temperature is greater than or equal to the hot water heating temperature threshold, step S4 is performed.

[0059] (3.2) When the real-time hot water heating temperature is less than the hot water heating temperature threshold, the power of the hot water assembly 21 is increased according to the preset power adjustment parameter, so as to increase the beverage temperature.

[0060] In some embodiments of the present application, the hot water heating temperature threshold is equal to the value of the beverage temperature threshold.

[0061] In some embodiments of the present application, a plurality of temperature intervals representing the beverage temperature are preset, and each temperature interval corresponds to a power adjustment parameter, so as to select different power adjustment parameter values according to the real-time beverage temperature. Optionally, the power adjustment parameter includes a specific power value, a gear representing different power, or a power increase percentage.

[0062] In some embodiments of the present application, in step (3.2), the main control unit obtains the current power of the hot water assembly 21, and determines whether the power can be adjusted according to the preset power threshold. If the current power is already greater than the preset maximum power threshold, the power cannot be adjusted, and step S4 is performed.

[0063] Step S4: Obtain the real-time flow rate of the water pump 1 and the preset minimum flow rate, and compare the real-time flow rate with the minimum flow rate.

[0064] (4.1) When the real-time flow rate is greater than the minimum flow rate, the flow rate of the water pump 1 is reduced according to the preset flow rate adjustment parameter, so as to increase the beverage temperature.

[0065] In some embodiments of the present application, the flow rate of the water pump can be adjusted by controlling the rotating speed of the impeller in the water pump.

[0066] In some embodiments of the present application, a plurality of temperature intervals representing the beverage temperature are preset, and each temperature interval corresponds to a flow rate adjustment parameter, so as to select different flow rate adjustment parameter values according to the real-time beverage temperature. Optionally, the flow rate adjustment parameter includes a specific flow rate value, a gear representing different flow rate, or a flow rate increase percentage.

[0067] (4.2) When the real-time flow rate is less than or equal to the minimum flow rate, the main control unit issues a reminder or an alarm. Embodiments

[0068] When making milk coffee, the control steps of the temperature control loop system of the coffee machine of the present application include:

[0069] Step S1, the beverage temperature detection feedback unit 6 acquires the real-time beverage temperature of the beverage in the beverage cup 9 in real time according to a preset frequency or time interval.

[0070] Step S2, a preset beverage temperature threshold is acquired, and the real-time beverage temperature is compared with the beverage temperature threshold to determine whether to perform temperature control adjustment.

[0071] (2.1) When the real-time beverage temperature is greater than or equal to the beverage temperature threshold, no temperature control adjustment is performed, and the temperature detection of the beverage is continuously performed.

[0072] (2.2) When the real-time beverage temperature is less than the beverage temperature threshold, step S3 is performed.

[0073] Step S3, the real-time hot water heating temperature of the hot water assembly 21 and the preset hot water heating temperature threshold are acquired, and the real-time hot water heating temperature is compared with the hot water heating temperature threshold.

[0074] (3.1) When the real-time hot water heating temperature is greater than or equal to the hot water heating temperature threshold, step S4 is performed.

[0075] (3.2) When the real-time hot water heating temperature is less than the hot water heating temperature threshold, the power of the hot water assembly is increased according to the preset hot water power adjustment parameter, so as to increase the water temperature.

[0076] In some embodiments of the present application, in step (3.2), the main control unit acquires the current hot water heating power of the hot water assembly 21, and judges whether the power adjustment can be performed according to the preset maximum hot water power threshold: if the current hot water heating power is less than the preset maximum hot water power threshold, the hot water heating power is increased; if the current hot water heating power is already greater than or equal to the preset maximum hot water power threshold, the power cannot be adjusted, and step S4 is performed.

[0077] In some embodiments of the present application, the hot water heating temperature threshold is equal to the value of the beverage temperature threshold.

[0078] In some embodiments of the present application, a plurality of temperature intervals representing the beverage temperature are preset, each temperature interval corresponds to a hot water power adjustment parameter, so as to select different hot water power adjustment parameter values according to the real-time beverage temperature. Optionally, the hot water power adjustment parameter includes a specific hot water power value, a gear representing different hot water power, or a hot water power increase percentage.

[0079] Step S4, the real-time steam heating temperature of the steam assembly 22 and the preset steam heating temperature threshold are acquired, and the real-time steam heating temperature is compared with the steam heating temperature threshold.

[0080] (4.1) When the real-time steam heating temperature is greater than or equal to the steam heating temperature threshold, then step S5 is performed.

[0081] (4.2) When the real-time steam heating temperature is less than the steam heating temperature threshold, then the power of the steam assembly is increased according to a preset steam power adjustment parameter, so as to increase the temperature of the milk tea.

[0082] In some embodiments of the present application, in step (4.2), the main control unit acquires the current steam heating power of the steam assembly 22, and judges whether the power adjustment can be performed according to a preset maximum steam power threshold: if the current steam heating power is less than the maximum steam power threshold, then the steam heating power is increased; if the current steam heating power is already greater than or equal to the maximum steam power threshold, then the power cannot be adjusted, and step S5 is performed.

[0083] In some embodiments of the present application, the steam heating temperature threshold is equal to the value of the beverage temperature threshold.

[0084] In some embodiments of the present application, a plurality of temperature intervals representing the temperature of the beverage are preset, and each temperature interval corresponds to a steam power adjustment parameter, so as to select different steam power adjustment parameter values according to the real-time beverage temperature. Optionally, the steam power adjustment parameter includes a specific steam power value, a gear representing different steam powers, or a steam power increase / decrease percentage.

[0085] Step S5: Acquire the real-time flow rate of the water pump 1 and a preset minimum flow rate, and compare the real-time flow rate with the minimum flow rate.

[0086] (5.1) When the real-time flow rate is greater than the minimum flow rate, then the flow rate of the water pump 1 is reduced according to a preset flow rate adjustment parameter, so as to increase the temperature of the beverage.

[0087] In some embodiments of the present application, the flow rate of the water pump can be adjusted by controlling the rotation speed of the impeller in the water pump.

[0088] In some embodiments of the present application, a plurality of temperature intervals representing the temperature of the beverage are preset, and each temperature interval corresponds to a flow rate adjustment parameter, so as to select different flow rate adjustment parameter values according to the real-time beverage temperature. Optionally, the flow rate adjustment parameter includes a specific flow rate value, a gear representing different flow rates, or a flow rate increase / decrease percentage.

[0089] (5.2) When the real-time flow rate is less than or equal to the minimum flow rate, the main control unit issues a reminder or an alarm.

[0090] The temperature control loop system of the coffee machine has the beneficial effects that the heating power of the hot water assembly and / or the steam assembly and the water supply flow of the water pump can be adjusted in real time according to the temperature change of the beverage, the real-time adjustment and control of the beverage cup-out temperature are realized, each cup of beverage brewed by the coffee machine is in the proper preset temperature range, the taste of the beverage is improved, and the consistency of the beverage quality is maintained.

[0091] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification content, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A temperature control circuit system for a coffee machine, comprising: A water pump is used to pump water from a source. A heating unit includes a hot water component and a steam component, which are respectively connected to the water pump. The hot water component heats the water delivered by the water pump to generate hot water, and the steam component heats the water delivered by the water pump to generate steam. The brewing unit, connected to the heating unit, is used to press coffee bean powder into a cake for brewing and extraction. A beverage outlet unit is connected to the heating unit and the brewing unit for dispensing beverages; The main control unit is electrically connected to the water pump, the heating unit, and the brewing unit, respectively. The invention is characterized by further comprising: a beverage temperature detection feedback unit for real-time detection of the beverage temperature in the beverage cup, wherein the beverage temperature detection feedback unit is electrically connected to the main control unit, the beverage temperature detection feedback unit includes an infrared temperature sensor and a photodetector, the infrared temperature sensor is used to capture the infrared energy emitted by the beverage in real time, and the photodetector is used to convert the captured infrared energy into an electrical signal and send it to the main control unit, so that the main control unit can obtain the real-time beverage temperature based on the electrical signal; the main control unit adjusts the heating power parameters of the heating unit according to the real-time beverage temperature, and controls the heating unit according to the adjusted heating power parameters when making the next cup of coffee; or, when the heating power parameters cannot be adjusted, the main control unit adjusts the water pump flow parameters, and controls the water pump according to the adjusted flow parameters when making the next cup of coffee, so as to realize real-time adjustment and control of the beverage dispensing temperature.

2. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, The hot water assembly includes a hot water heating plate or a hot water boiler. The inlet of the hot water heating plate or the hot water boiler is connected to the water pump, and the generated hot water is output through the outlet of the hot water heating plate or the hot water boiler.

3. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, The hot water assembly also includes a hot water temperature detection feedback unit, which is used to detect the hot water heating temperature of the hot water assembly in real time. The hot water temperature detection feedback unit is connected to the main control unit to send the detected real-time hot water heating temperature to the main control unit.

4. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, The steam assembly includes a steam heating plate or a steam boiler. The inlet of the steam heating plate or the steam boiler is connected to the water pump, and the generated steam is output through the outlet of the steam heating plate or the steam boiler.

5. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, The steam assembly also includes a steam temperature detection feedback unit for real-time detection of the steam heating temperature of the steam assembly. The steam temperature detection feedback unit is connected to the main control unit to send the detected real-time steam heating temperature to the main control unit.

6. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, The brewing unit includes a brewing chamber and a tamping mechanism that presses coffee bean powder into a cake within the brewing chamber. The brewing chamber is connected to the hot water assembly and the beverage outlet unit, respectively, so that the hot water output from the hot water assembly passes through the cake in the brewing chamber to produce coffee liquid, and the coffee liquid flows from the brewing chamber to the beverage outlet unit.

7. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, It also includes a milk foaming unit, which is connected to the steam assembly and the beverage outlet unit, respectively, so that the steam output from the steam assembly enters the milk foaming unit to heat the milk or froth the milk.

8. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, The beverage outlet unit includes a beverage outlet housing and a beverage outlet, the beverage outlet being located at the bottom of the beverage outlet housing for discharging beverages.

9. The temperature control circuit system for a coffee machine according to claim 8, characterized in that, The beverage temperature detection feedback unit is located below the beverage outlet unit or at the bottom of the beverage output housing. When the beverage temperature detection feedback unit is located at the bottom of the beverage output housing, the bottom of the beverage output housing has mounting holes for the infrared temperature sensor and the photodetector near the beverage outlet, and the infrared temperature sensor and the photodetector are respectively installed in the mounting holes.

10. The temperature control circuit system for a coffee machine according to claim 1, characterized in that, It also includes a display screen, which is electrically connected to the main control unit and is used to display the real-time beverage temperature and other control information.

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