Coffee cold extraction system

Abstract

The utility model relates to the technical field of cold extraction of coffee, in particular to a cold extraction system for coffee. The system comprises an instant extraction system, a shock cooling system and a controller. According to the coffee cold extraction system provided by the utility model, the instant heating assembly is arranged, so that water flowing to the coffee extractor can be heated, the water can be rapidly heated to be boiled, and then hot water is input into the coffee extractor, so that the coffee extraction efficiency is improved, and the coffee extraction time is shortened; by arranging a TDS testing assembly, a cold water tank, a refrigeration assembly, a third water pump and a gravity sensor, the TDS testing assembly is used for monitoring the concentration of extracted coffee in real time, the concentration of the currently extracted coffee is judged according to a preset coffee concentration threshold value, and if the current extraction concentration is high or low, the concentration of the coffee can be detected through the synergistic effect of the third water pump and the gravity sensor. And the injection amount of cold water is adjusted to ensure the taste of the cold-extracted coffee.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-brew coffee, in particular to a coffee cold-brew system. Background Art

[0002] As people's living standards continue to improve, they are pursuing higher and higher quality coffee, and the unique taste of cold brew coffee is deeply loved by people. When making cold brew coffee, you first need to grind the coffee beans into coffee powder, then put it in an extraction container, add water and stir it evenly, make coffee liquid after extraction, and then add cold water or ice cubes to complete the preparation of cold brew coffee. However, the existing extraction container requires a long extraction waiting time during the extraction preparation process (usually the static extraction time can be up to 20 hours), which has the problem of long extraction time; and in the process of adding cold water, there is a lack of a device to adjust the amount of cold water injection according to the concentration of the extracted coffee, which makes the amount of cold water injection unstable, thereby affecting the taste of the cold brew coffee.

[0003] To this end, the utility model provides a coffee cold extraction system. Utility Model Content

[0004] Based on this, it is necessary to provide a coffee cold brew system to address the above technical problems.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A coffee cold brewing system, comprising:

[0007] An instant hot extraction system, the instant hot extraction system comprising a water storage tank, a first water pump, an instant hot component and a coffee extractor which are sequentially connected through a pipeline, the instant hot component being used to heat water flowing to the coffee extractor;

[0008] A quenching system, the quenching system comprising a liquid collecting box, a cold water tank with a built-in refrigeration component, a stirring component and a gravity sensor, the output end of the coffee extractor is connected to the input end of the liquid collecting box through a pipeline, a TDS test component for detecting coffee concentration and a second water pump are provided on the pipeline between the coffee extractor and the liquid collecting box, the output end of the cold water tank is connected to the input end of the liquid collecting box through a pipeline, a third water pump is provided on the pipeline between the cold water tank and the liquid collecting box, a gravity sensor is provided on the inner bottom surface of the liquid collecting box, a driving component is provided on the top of the liquid collecting box, the stirring component is provided inside the liquid collecting box, and the upper end of the stirring component passes through the top of the liquid collecting box and is connected to the output end of the driving component, and a drain pipe is provided at the output end of the liquid collecting box;

[0009] The controller, the first water pump, the instant heating component, the temperature sensor, the TDS test component, the second water pump, the refrigeration component, the third water pump, the gravity sensor and the driving component are electrically connected to the controller respectively.

[0010] Furthermore, the instant heating component is a rare earth thick film heater.

[0011] Furthermore, it also includes a condenser, one end of which is connected to the output end of the rare earth thick film heater through a pipeline, and the other end is connected to the input end of the coffee extractor through a pipeline, the input end and the output end of the condenser are respectively provided with a first temperature sensor for detecting the inlet water temperature and a second temperature sensor for detecting the outlet water temperature, the pipeline between the rare earth thick film heater and the condenser and the pipeline between the condenser and the coffee extractor are respectively provided with a first solenoid valve and a second solenoid valve, the first temperature sensor, the second temperature sensor, the first solenoid valve and the second solenoid valve are respectively electrically connected to the controller.

[0012] Furthermore, the refrigeration component is a semiconductor refrigeration plate.

[0013] Furthermore, the TDS testing component is a TDS tester.

[0014] Furthermore, a third temperature sensor and a third solenoid valve electrically connected to the controller are provided on the pipeline between the cold water tank and the liquid collecting box.

[0015] Furthermore, the driving assembly includes a driving motor and a rotating shaft, one end of the rotating shaft is connected to the output shaft end of the driving motor, and the other end is connected to the stirring assembly.

[0016] Furthermore, the stirring assembly includes a stirring shaft and a plurality of stirring blades arranged on the stirring shaft.

[0017] Furthermore, a fourth temperature sensor electrically connected to the controller is also provided on the inner bottom surface of the liquid collecting box, and a fourth solenoid valve electrically connected to the controller is also provided on the pipeline between the liquid collecting box and the coffee extractor.

[0018] Furthermore, the drain pipe is provided with a fifth solenoid valve electrically connected to the controller.

[0019] The advantages and beneficial effects of the utility model are as follows: the utility model provides a coffee cold brew system, which can heat the water flowing to the coffee extractor by setting an instant heating component, and can quickly heat the water to boiling, and then input the hot water into the coffee extractor, so as to improve the coffee extraction efficiency and shorten the coffee extraction time; by setting a TDS test component, a cold water tank, a refrigeration component, a third water pump and a gravity sensor, the TDS test component is used to monitor the concentration of the extracted coffee in real time, and according to a preset coffee concentration threshold, the concentration of the current extracted coffee is judged. If the current extraction concentration is high or low, the injection amount of cold water can be adjusted through the synergistic effect of the third water pump and the gravity sensor to ensure the taste of the cold brew coffee. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a coffee cold extraction system in an embodiment of the utility model.

[0021] Figure numerals: water tank 1, first water pump 2, rare earth thick film heater 3, first solenoid valve 4, first temperature sensor 5, condenser 6, second temperature sensor 7, second solenoid valve 8, coffee extractor 9, fourth solenoid valve 10, TDS test assembly 11, second water pump 12, liquid collecting box 13, drive motor 14, rotating shaft 15, stirring shaft 16, stirring blade 17, gravity sensor 18, fourth temperature sensor 19, fifth solenoid valve 20, drain pipe 21, cold water tank 22, semiconductor refrigeration sheet 23, third temperature sensor 24, third solenoid valve 25, third water pump 26. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below through specific implementation methods combined with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Reference Figure 1 , a coffee cold extraction system, comprising: an instant hot extraction system, a quenching system and a controller.

[0024] The instant extraction system comprises a water storage tank 1, a first water pump 2, an instant component and a coffee extractor 9 which are sequentially connected through a pipeline, and the instant component is used to heat the water flowing to the coffee extractor 9.

[0025] Among them, the instant heating component involved in the utility model is a rare earth thick film heater 3.

[0026] Among them, the utility model also includes a condenser 6, one end of the condenser 6 is connected to the output end of the rare earth thick film heater 3 through a pipeline, and the other end is connected to the input end of the coffee extractor 9 through a pipeline, the input end and the output end of the condenser 6 are respectively provided with a first temperature sensor 5 for detecting the inlet water temperature and a second temperature sensor 7 for detecting the outlet water temperature, the pipeline between the rare earth thick film heater 3 and the condenser 6 and the pipeline between the condenser 6 and the coffee extractor 9 are respectively provided with a first solenoid valve 4 and a second solenoid valve 8, the first temperature sensor 5, the second temperature sensor 7, the first solenoid valve 4 and the second solenoid valve 8 are respectively electrically connected to the controller.

[0027] In this embodiment, the water in the water storage tank 1 is transported to the rare earth thick film heater 3 by the first water pump 2 and heated to boiling, and then the hot water flows to the condenser 6 and is cooled in the condenser 6. A first temperature sensor 5 and a second temperature sensor 7 are respectively arranged at the input end and the output end of the condenser 6, respectively, for detecting the water inlet temperature and the water outlet temperature, and the two real-time water temperature values ​​are fed back to the controller for processing and analysis. The controller presets the water temperature threshold of entering the condenser 6 as 95°C and the water temperature threshold of discharging the condensed water as 93°C. The controller performs temperature comparison and judgment. If the water inlet temperature exceeds 95°C, the controller controls the first The solenoid valve 4 is disconnected and the first water pump 2 stops supplying water. After the water inlet temperature drops to 95°C, the controller controls the first solenoid valve 4 and the first water pump 2 to continue working. If the water outlet temperature exceeds 93°C, the controller controls the second solenoid valve 8 to disconnect and the first water pump 2 to stop supplying water. After the water outlet temperature drops to 93°C, the controller controls the second solenoid valve 8 and the first water pump 2 to continue working. It should be understood here that the ideal extraction temperature of coffee in the industry is 92°C; then the hot water flows to the coffee extractor 9, and the coffee powder is extracted by hot water in the coffee extractor 9. In addition, the coffee extractor 9 can be manually filled with ground coffee powder.

[0028] Furthermore, the coffee extractor 9 involved in the present invention is a prior art, and its structure includes but is not limited to the coffee extractor disclosed in reference CN202198442U, which will not be described in detail here.

[0029] A quenching system, the quenching system includes a liquid collecting box 13, a cold water tank 22 with a built-in refrigeration component, a stirring component and a gravity sensor 18, the output end of the coffee extractor 9 is connected to the input end of the liquid collecting box 13 through a pipeline, a TDS test component 11 and a second water pump 12 for detecting coffee concentration are provided on the pipeline between the coffee extractor 9 and the liquid collecting box 13, the output end of the cold water tank 22 is connected to the input end of the liquid collecting box 13 through a pipeline, a third water pump 26 is provided on the pipeline between the cold water tank 22 and the liquid collecting box 13, a gravity sensor 18 is provided on the inner bottom surface of the liquid collecting box 13, a driving component is provided on the top of the liquid collecting box 13, the stirring component is arranged inside the liquid collecting box 13, and the upper end of the stirring component passes through the top of the liquid collecting box 13 and is connected to the output end of the driving component, and a drain pipe 21 is provided at the output end of the liquid collecting box 13.

[0030] The refrigeration component is a semiconductor refrigeration sheet 23 .

[0031] The TDS test component 11 is a TDS tester.

[0032] A third temperature sensor 24 and a third solenoid valve 25 electrically connected to the controller are also provided on the pipeline between the cold water tank 22 and the liquid collecting box 13 .

[0033] The driving assembly includes a driving motor 14 and a rotating shaft 15 , one end of the rotating shaft 15 is connected to the output shaft end of the driving motor 14 , and the other end of the rotating shaft 15 is connected to the stirring assembly.

[0034] The stirring assembly includes a stirring shaft 16 and a plurality of stirring blades 17 disposed on the stirring shaft 16. By arranging a driving motor 14, a rotating shaft 15, a stirring shaft 16 and stirring blades 17, the extracted coffee and cold water can be fully mixed.

[0035] The inner bottom surface of the liquid collecting box 13 is also provided with a fourth temperature sensor 19 electrically connected to the controller, and the pipeline between the liquid collecting box 13 and the coffee extractor 9 is also provided with a fourth solenoid valve 10 electrically connected to the controller.

[0036] A fifth solenoid valve 20 electrically connected to the controller is provided on the drain pipe 21 .

[0037] In this embodiment, the extracted coffee is delivered to the liquid collecting box 13 by the second water pump 12, and the quality of the coffee extracted in the liquid collecting box 13 is monitored in real time by the gravity sensor 18, and the quality value is fed back to the controller. At the same time, the concentration of the extracted coffee is monitored in real time by the TDS tester, and the coffee concentration value is fed back to the controller. The coffee concentration threshold is preset in the controller in advance, for example: the preset coffee concentration threshold range is 1 to 1.5%. The controller performs a comparison and judgment on the coffee concentration. If the concentration of the currently extracted coffee exceeds the preset coffee concentration threshold range, the third water pump 26 and the gravity sensor 18 are used to compare and judge the coffee concentration. The synergistic effect of the third water pump 26 and the gravity sensor 18 is used to increase the injection amount of cold water. If the concentration of the current extracted coffee exceeds the preset coffee concentration threshold range, the synergistic effect of the third water pump 26 and the gravity sensor 18 is used to reduce the injection amount of cold water to ensure the taste of the cold-brewed coffee; the fourth temperature sensor 19 can monitor the mixed temperature of the extracted coffee and cold water in real time, and feed the mixed temperature value back to the controller, and compare it with the preset cold-brew temperature (for example: cold-brew temperature 10-15°C). If the mixed temperature value reaches the cold-brew temperature, the controller can control the fifth solenoid valve 20 to work so as to discharge the cold-brewed coffee from the liquid collecting box 13.

[0038] Obviously, it should be understood by those skilled in the art that the above-mentioned various steps of the present invention can be performed in a manner different from the present invention, and the simulation method and experimental equipment include but are not limited to the above description. The above-mentioned various steps of the present invention can be performed in a different order than here in some cases, and the steps shown or described above can be performed separately. Therefore, the present invention is not limited to any specific combination of hardware and software.

[0039] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A coffee cold brew system, characterized in that: include: An instant hot extraction system, the instant hot extraction system comprising a water storage tank, a first water pump, an instant hot component and a coffee extractor which are sequentially connected through a pipeline, the instant hot component being used to heat water flowing to the coffee extractor; A quenching system, the quenching system comprising a liquid collecting box, a cold water tank with a built-in refrigeration component, a stirring component and a gravity sensor, the output end of the coffee extractor is connected to the input end of the liquid collecting box through a pipeline, a TDS test component for detecting coffee concentration and a second water pump are provided on the pipeline between the coffee extractor and the liquid collecting box, the output end of the cold water tank is connected to the input end of the liquid collecting box through a pipeline, a third water pump is provided on the pipeline between the cold water tank and the liquid collecting box, a gravity sensor is provided on the inner bottom surface of the liquid collecting box, a driving component is provided on the top of the liquid collecting box, the stirring component is provided inside the liquid collecting box, and the upper end of the stirring component passes through the top of the liquid collecting box and is connected to the output end of the driving component, and a drain pipe is provided at the output end of the liquid collecting box; The controller, the first water pump, the instant heating component, the temperature sensor, the TDS test component, the second water pump, the refrigeration component, the third water pump, the gravity sensor and the driving component are electrically connected to the controller respectively.

2. A coffee cold brew system according to claim 1, characterized in that: The instant heating component is a rare earth thick film heater.

3. A coffee cold brew system according to claim 2, characterized in that: It also includes a condenser, one end of which is connected to the output end of the rare earth thick film heater through a pipeline, and the other end is connected to the input end of the coffee extractor through a pipeline, the input end and the output end of the condenser are respectively provided with a first temperature sensor for detecting the inlet water temperature and a second temperature sensor for detecting the outlet water temperature, the pipeline between the rare earth thick film heater and the condenser and the pipeline between the condenser and the coffee extractor are respectively provided with a first solenoid valve and a second solenoid valve, the first temperature sensor, the second temperature sensor, the first solenoid valve and the second solenoid valve are respectively electrically connected to the controller.

4. The coffee cold brew system according to claim 1, characterized in that: The refrigeration component is a semiconductor refrigeration sheet.

5. The coffee cold brew system according to claim 1, characterized in that: The TDS testing component is a TDS tester.

6. The coffee cold brew system according to claim 1, characterized in that: A third temperature sensor and a third electromagnetic valve electrically connected to the controller are also provided on the pipeline between the cold water tank and the liquid collecting box.

7. The coffee cold brew system according to claim 1, characterized in that: The driving assembly comprises a driving motor and a rotating shaft, one end of the rotating shaft is connected to the output shaft end of the driving motor, and the other end of the rotating shaft is connected to the stirring assembly.

8. The coffee cold brew system according to claim 7, characterized in that: The stirring assembly comprises a stirring shaft and a plurality of stirring blades arranged on the stirring shaft.

9. The coffee cold brew system according to claim 1, characterized in that: A fourth temperature sensor electrically connected to the controller is also provided on the inner bottom surface of the liquid collecting box, and a fourth solenoid valve electrically connected to the controller is also provided on the pipeline between the liquid collecting box and the coffee extractor.

10. The coffee cold brew system according to claim 1, characterized in that: The drain pipe is provided with a fifth solenoid valve electrically connected to the controller.

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