Coffee cold extraction system

The cold brew coffee system uses the ice gill module to generate cold water to cool the coffee, which solves the problem of insufficient temperature of ice coffee, ensures the consistent taste of ice coffee, and achieves high-quality production of ice coffee.

CN223068362UActive Publication Date: 2025-07-08GUANGDONG ENAITER ELECTRICAL APPLIANCES CO LTD
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Patent Information

Application Number
CN202422170495.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-07-08
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

In the existing iced coffee making methods, ice water loses temperature after passing through the water pump, resulting in insufficient temperature of iced coffee and affecting the taste of the coffee.

Method used

A cold brew coffee system is designed, including a water tank module, an ice gill module, an extraction module, a hot water module, a cooling module and a booster module. The ice gill module generates cold water to cool the coffee in the extraction chamber, and then cold brewing is performed to ensure that the coffee temperature reaches the standard of ice coffee.

Benefits of technology

Maintain the taste of the coffee, preventing the difference in the flavor of the coffee before and after the ice cubes melt, and enhancing the taste of the ice coffee.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223068362U_ABST
    Figure CN223068362U_ABST
Patent Text Reader

Abstract

The utility model relates to a cold extraction coffee system which comprises a water tank module which comprises a water bucket and a first water pump connected with the water bucket. The ice liner module comprises an ice bucket, a refrigeration sheet arranged in the ice bucket, an ice liner water level gauge and an ice liner temperature sensor; the extraction module comprises an extraction bin, an extraction temperature sensor used for detecting the temperature of coffee in the extraction bin, an extraction water level gauge arranged in the extraction bin, a water outlet nozzle arranged at the bottom of the extraction bin and a valve used for closing or opening the water outlet nozzle; the hot water module comprises a hot water flow channel communicated with the water tank and the extraction bin, an electric heating module arranged on the hot water flow channel, and a fourth water pump. The utility model provides a coffee cold extraction system which prevents the situation that the taste of coffee is influenced by the difference of the taste of the coffee before and after ice cubes are melted.
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Description

Technical Field

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

[0002] At present, most of the methods for making iced coffee on the market are made by adding ice cubes to the prepared coffee, and its taste is not good. There are also methods that use a refrigeration mechanism to cool water to the freezing point and then pump the ice water to brew coffee by a water pump. However, the ice water loses a lot of temperature after passing through the water pump and cannot reach the temperature of iced coffee. The iced coffee made by this method has a light taste and affects the coffee taste. Content of the Utility Model

[0003] To solve the above problems, the technical solution provides a cold brew coffee system.

[0004] To achieve the above purpose, the technical solution is as follows:

[0005] A cold brew coffee system, comprising

[0006] A water tank module, which includes a water bucket and a first water pump connected to the water bucket;

[0007] An ice tank module, which includes an ice bucket, a refrigeration sheet, an ice tank water level gauge and an ice tank temperature sensor arranged in the ice bucket;

[0008] An extraction module, which includes an extraction chamber, an extraction temperature sensor for detecting the coffee temperature in the extraction chamber, an extraction water level gauge arranged in the extraction chamber, a water outlet nozzle arranged at the bottom of the extraction chamber, and a valve for closing or conducting the water outlet nozzle;

[0009] A hot water module, which includes a hot water flow channel connecting the water tank and the extraction chamber, an electric heating module arranged on the hot water flow channel, and a fourth water pump;

[0010] A cooling module, which includes a cooling pipe with two ends respectively communicating with the water inlet and outlet of the ice bucket, and a third water pump arranged between the cooling pipe and the ice bucket;

[0011] A pressurization module, which includes an air pump and an exhaust valve connected to the extraction chamber;

[0012] A cold brew button;

[0013] A hot brew button.

[0014] For the cold brew coffee system as described above, the extraction module further includes a coupling connected to the valve, and a motor for driving the coupling.

[0015] A cold brew coffee system as described above, wherein the electric heating module includes an inlet water temperature sensor, an outlet water temperature sensor, and a self-resetting thermostat or a manual-resetting thermostat.

[0016] A cold brew coffee system as described above, wherein a third one-way valve is provided between the air pump and the extraction chamber, and the exhaust valve is provided between the third one-way valve and the extraction chamber.

[0017] A cold brew coffee system as described above, wherein a first one-way valve is provided between the second water pump and the extraction chamber.

[0018] A cold brew coffee system as described above, wherein a second one-way valve is provided between the electric heating module and the extraction chamber.

[0019] A cold brew coffee system as described above, wherein an air passage communicating the ice bucket with the outside is provided on the ice tank water level gauge.

[0020] A cold brew coffee system as described above, wherein a radiator is provided on the refrigeration chip, and a fan is provided on the radiator.

[0021] A cold brew coffee system as described above, wherein the extraction module further includes a heat insulation sleeve, an extraction chamber cover that is lid-closed with the extraction chamber, and a cover. The heat insulation sleeve is provided with an opening for the extraction chamber and the cooling pipe to be placed in. The cover is used to close the opening. The extraction chamber is provided in the heat insulation sleeve, and the cooling pipe is provided outside the extraction chamber and is used for heat exchange with the extraction chamber.

[0022] The beneficial effects of this application are:

[0023] The present utility model provides a cold brew coffee system, which has two modes of cold brewing and hot brewing. Before cold brewing, the coffee in the extraction chamber is cooled by the cold water generated by the ice tank module, and then the cold water is injected into the extraction chamber, and then cold brewing is carried out, so that the extracted coffee can reach the temperature of iced coffee, thus maintaining the taste of the coffee and preventing the difference in the concentration of the coffee taste caused by the melting of ice cubes before and after, which affects the coffee taste. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments.

[0025] Figure 1 It is a schematic diagram of the structural connection relationship of the present utility model;

[0026] Figure 2 It is a semi-sectional view of the extraction module;

[0027] Figure 3 It is an exploded view of the structure of the extraction module;

[0028] Reference numerals: water bucket 1, first water pump 2, tee 3, manual reset temperature controller 4, self-resetting temperature controller 5, outlet water temperature sensor 6, tee 7, tee 8, ice tank water level gauge 9, air duct 10, second water pump 11, first check valve 12, second check valve 13, tee 14, extraction water level gauge 15, extraction chamber cover 16, exhaust valve 17, air pump 18, third check valve 19, tee 20, extraction chamber 21, cooling pipe 22, extraction temperature sensor 23, valve 24, coupling 25, motor 26, third water pump 27, fan 28, refrigeration chip 29, radiator 30, ice bucket 31, ice tank temperature sensor 32, electric heating module 33, inlet water temperature sensor 34, fourth water pump 35, water outlet nozzle 36, filter screen 43, upper layer 431, lower layer 432. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] A cold brew coffee system includes

[0031] A water tank module, which includes a water bucket 1 and a first water pump 2 connected to the water bucket 1;

[0032] An ice tank module, which includes an ice bucket 31, a refrigeration chip 29, an ice tank water level gauge 9 and an ice tank temperature sensor 32 arranged in the ice bucket 31;

[0033] An extraction module, which includes an extraction chamber 21, an extraction temperature sensor 23 for detecting the coffee temperature in the extraction chamber 21, an extraction water level gauge 15 arranged in the extraction chamber 21, a water outlet nozzle 36 arranged at the bottom of the extraction chamber 21, and a valve 24 for closing or conducting the water outlet nozzle 36;

[0034] A hot water module, which includes a hot water flow channel connecting the water tank and the extraction chamber 21, an electric heating module 33 arranged on the hot water flow channel, and a fourth water pump 35;

[0035] A cooling module, which includes a cooling pipe 22 with two ends respectively communicating with the water inlet and the water outlet of the ice bucket 31, and a third water pump 27 arranged between the cooling pipe 22 and the ice bucket 31;

[0036] A pressurization module, which includes an air pump 18 and an exhaust valve 17 connected to the extraction chamber 21;

[0037] A cold brew button;

[0038] A hot brew button;

[0039] The cold brew coffee system includes the following steps:

[0040] S1: The Peltier cooler 29 starts to cool, the first water pump 2 pumps the water in the water bucket 1 into the ice bucket 31, the water level in the ice bucket 31 rises, and the ice tank water level gauge 9 triggers the first water pump 2 to stop working;

[0041] S2: After the ice tank temperature sensor 32 detects that the water temperature in the ice bucket 31 reaches the preset temperature, it triggers the third water pump 27 to work, so that the water in the ice bucket 31 circulates between the ice bucket 31 and the cooling pipe 22. After the extraction temperature sensor 23 detects that the coffee temperature in the extraction chamber 21 reaches the preset temperature, it triggers the third water pump 27 to stop working;

[0042] S3: Trigger the cold brew button to enter step S4; or trigger the hot brew button to enter step S6;

[0043] S4: The cold brew button triggers the exhaust valve 17 to open, exhaust the extraction chamber 21, and the second water pump 11 pumps the water in the ice bucket 31 into the extraction chamber 21 until the extraction water level gauge 15 triggers the second water pump 11 to stop working and triggers the exhaust valve 17 to close;

[0044] S5: The air pump 18 starts to work, stops working after pressurizing for the first preset time, keeps the pressure for the second preset time, then triggers the valve 24 to open, and the air pump 18 works until the coffee in the extraction chamber 21 is drained, and the step ends;

[0045] S6: The hot brew button triggers the exhaust valve 17 to open, the fourth water pump 35 starts to work, and the water in the water bucket 1 is heated by the electric heating module 33 and then injected into the extraction chamber 21;

[0046] S7: The extraction water level gauge 15 triggers the fourth water pump 35 to stop working and triggers the exhaust valve 17 to close; the air pump 18 starts to work, stops working after pressurizing for the first preset time, keeps the pressure for the second preset time, then triggers the valve 24 to open, and the air pump 18 works until the coffee in the extraction chamber 21 is drained, and the step ends.

[0047] The present utility model provides a cold brew coffee system, which has two modes of cold brew and hot brew. Before cold brewing, the coffee in the extraction chamber 21 is cooled by the cold water generated by the ice tank module, and then the cold water is injected into the extraction chamber 21, and then cold brewing is performed, so that the extracted coffee can reach the temperature of iced coffee, thus maintaining the taste of the coffee and preventing the difference in the concentration of the coffee taste caused by the melting of ice cubes before and after, which affects the coffee taste.

[0048] Further, as a preferred implementation manner rather than a limitation of this solution, the extraction module further includes a coupling 25 connected to the valve 24 and a motor 26 for driving the coupling 25.

[0049] Further, as a preferred implementation manner rather than a limitation of this solution, the electric heating module 33 includes an inlet water temperature sensor 34, an outlet water temperature sensor 6, and a self-resetting thermostat 5 or a manual-resetting thermostat 4.

[0050] Further, as a preferred implementation manner rather than a limitation of this solution, a third one-way valve 19 is provided between the air pump 18 and the extraction chamber 21, and the exhaust valve 17 is provided between the third one-way valve 19 and the extraction chamber 21.

[0051] Further, as a preferred implementation manner rather than a limitation of this solution, a first one-way valve 12 is provided between the second water pump 11 and the extraction chamber 21.

[0052] Further, as a preferred implementation manner rather than a limitation of this solution, a second one-way valve 13 is provided between the electric heating module 33 and the extraction chamber 21.

[0053] Further, as a preferred implementation manner rather than a limitation of this solution, an air passage 10 communicating the ice bucket 31 with the outside is provided on the ice bucket water level gauge 9.

[0054] Further, as a preferred implementation manner rather than a limitation of this solution, a radiator 30 is provided on the refrigeration chip 29, and a fan 28 is provided on the radiator 30.

[0055] This embodiment has multiple three-way pipes, such as a first three-way pipe 3, a second three-way pipe 7, a third three-way pipe 8, a fourth three-way pipe 14, and a fifth three-way pipe 20, for connecting different pipes.

[0056] Further, as a preferred implementation manner rather than a limitation of this solution, the extraction module further includes a heat insulation sleeve 41, an extraction chamber 21 provided in the heat insulation sleeve 41, an extraction chamber cover 16 covering the extraction chamber 21, a cooling pipe 22 provided outside the extraction chamber 21 and used for heat exchange with the extraction chamber 21, and a cover 42. The heat insulation sleeve 41 is provided with an opening 411 for the extraction chamber 21 and the cooling pipe 22 to be placed in, and the cover 42 is used to close the opening 411. The extraction chamber is provided in the heat insulation sleeve, and the cooling pipe is provided outside the extraction chamber and used for heat exchange with the extraction chamber.

[0057] Further, as a preferred implementation manner rather than a limitation of this solution, a filter screen 43 is further provided in the extraction chamber 21, and the filter screen 43 includes an upper layer 431 and a lower layer 432.

[0058] Further, as a preferred implementation manner of this solution rather than a limitation, a partition net 44 is provided on the extraction chamber cover 16. When the extraction chamber cover 16 is combined with the extraction chamber cover 16, the partition net 44 divides the upper layer 431 and the lower layer 432. The coffee powder is in the upper layer, and the extraction liquid enters the extraction chamber after passing through the lower layer for filtration.

[0059] Further, as a preferred implementation manner of this solution rather than a limitation, a bayonet 211 is provided on the side wall of the extraction chamber 21, and a clamping position 161 is provided on the extraction chamber cover 16. When the extraction chamber cover 16 rotates relative to the extraction chamber 21, the clamping position 161 enters the bayonet 211 to limit the separation of the extraction chamber 21 and the extraction chamber cover 16. It is convenient for detachable connection.

[0060] Further, as a preferred implementation manner of this solution rather than a limitation, a positioning groove 212 is provided on the bayonet 211. Provide resistance to limit the rotation of the extraction chamber cover relative to the extraction chamber.

[0061] Further, as a preferred implementation manner of this solution rather than a limitation, a water outlet nozzle 36 is provided at the bottom of the extraction chamber 21, a valve 24 for closing or conducting the water outlet nozzle 36, a coupling 25 connected to the valve 24, and a motor 26 for driving the coupling 25. The valve rotates to conduct or close the water outlet nozzle.

[0062] Further, as a preferred implementation manner of this solution rather than a limitation, an inner ring 162 is provided on the extraction chamber cover 16, an outer ring 163 sleeved outside the inner ring 162, and the clamping position 161 is provided on the outer ring 163.

[0063] Further, as a preferred implementation manner of this solution rather than a limitation, the edge of the opening 411 of the extraction chamber 21 is inserted between the outer ring 163 and the inner ring 162, and a sealing ring 164 is provided between the inner ring 162 and the inner side wall of the extraction chamber 21. Prevent the coffee liquid from leaking out.

[0064] Further, as a preferred implementation manner of this solution rather than a limitation, the cooling pipe 22 is wound around the outer periphery of the extraction chamber 21 in a spiral shape. Increase the cooling effect.

[0065] Further, as a preferred implementation manner of this solution rather than a limitation, an air inlet 213 and a water inlet 214 communicating the inside of the extraction chamber 21 with the outside are provided on the side wall of the extraction chamber 21.

[0066] The above are only the preferred embodiments of this application, and are not used to limit the scope of implementation of this application. All those whose principles and basic structures are the same as or similar to this application are within the protection scope of this application.

Claims

1. A cold brew coffee system, characterized in that: including a water tank module, which includes a water bucket and a first water pump connected to the water bucket; an ice tank module, which includes an ice bucket, a refrigerating sheet, an ice tank water level gauge and an ice tank temperature sensor arranged in the ice bucket; an extraction module, which includes an extraction chamber, an extraction temperature sensor for detecting the coffee temperature in the extraction chamber, an extraction water level gauge arranged in the extraction chamber, a water outlet nozzle arranged at the bottom of the extraction chamber, and a valve for closing or opening the water outlet nozzle; a hot water module, which includes a hot water flow channel connecting the water tank and the extraction chamber, an electric heating module arranged on the hot water flow channel, and a fourth water pump; a cooling module, which includes a cooling pipe with two ends respectively communicating with the water inlet and the water outlet of the ice bucket, and a third water pump arranged between the cooling pipe and the ice bucket; a pressurization module, which includes an air pump and an exhaust valve connected to the extraction chamber; a cold extraction button; a hot extraction button.

2. The cold brew coffee system according to claim 1, characterized in that: The extraction module further includes a coupling connected to the valve, and a motor for driving the coupling.

3. The cold brew coffee system according to claim 1, wherein: The electric heating module includes an inlet water temperature sensor, an outlet water temperature sensor, and a self-resetting thermostat or a manual-resetting thermostat.

4. The cold brew coffee system according to claim 1, wherein: A third one-way valve is arranged between the air pump and the extraction chamber, and the exhaust valve is arranged between the third one-way valve and the extraction chamber.

5. The cold brew coffee system according to claim 1, characterized in that: A second water pump is arranged between the ice bucket and the extraction chamber, and a first one-way valve is arranged between the second water pump and the extraction chamber.

6. The cold brew coffee system according to claim 1, wherein: A second one-way valve is arranged between the electric heating module and the extraction chamber.

7. The cold brew coffee system according to claim 1, wherein: An air passage communicating the ice bucket with the outside is arranged on the ice tank water level gauge.

8. The cold brew coffee system according to claim 1, wherein: A radiator is arranged on the refrigerating sheet, and a fan is arranged on the radiator.

9. The cold brew coffee system according to claim 1, wherein: The extraction module further includes a heat insulation sleeve, an extraction chamber cover covering the extraction chamber, and a cover. The heat insulation sleeve is provided with an opening for placing the extraction chamber and the cooling pipe, the cover is used for closing the opening, the extraction chamber is arranged in the heat insulation sleeve, and the cooling pipe is arranged outside the extraction chamber and is used for heat exchange with the extraction chamber.