A multi-compartment cold brew tea device

By designing a multi-compartment cold brew tea device, which uses a refrigeration compressor and ultrasonic vibration, combined with water circulation and temperature sensor control, the problem that a single-compartment cold brew tea machine cannot meet the needs of multiple flavors is solved, and efficient and automated cold brew tea production is achieved.

CN224387216UActive Publication Date: 2026-06-23SICHUAN SUNRAIN SIGN & DISPLAY SYST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SUNRAIN SIGN & DISPLAY SYST
Filing Date
2025-06-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing single-compartment cold brew tea machine cannot meet the demand of cold beverage shops for different flavors or types of tea under high customer traffic conditions.

Method used

Design a multi-compartment cold brew tea device, including a cabinet, refrigeration components and multiple cold brew units. It uses a refrigeration compressor and evaporator for cooling, combined with an ultrasonic generator to vibrate the tea powder, and achieves automated control through water circulation and temperature sensors to ensure rapid fusion of tea essence.

Benefits of technology

It enables the simultaneous extraction of cold brew tea of ​​different flavors or types, with fast cooling speed, short extraction time, and optimal taste. It also achieves automated production and water circulation cleaning of cold brew tea.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224387216U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of cold-brew tea device of multiple warehouse, including cabinet, refrigeration assembly and multiple cold-brew unit, the upper end of cabinet is provided with working groove, the working groove is divided into multiple side-by-side soup pools, the cold-brew unit includes 1 the soup pool and tea strainer, the upper end of the soup pool is provided with tea bin for the tea strainer inserts soup pool, the side wall of the tea bin is provided with water inlet, the side wall of soup pool is equipped with ultrasonic generator, the upper of soup pool is equipped with one corresponding water outlet faucet, the water outlet faucet of the water outlet of soup pool bottom is connected, and the water inlet is connected to water purifier;The refrigeration assembly includes refrigeration compressor and evaporator connected with refrigeration compressor pipeline, and the evaporator is coiled pipe arranged in each soup pool.
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Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a multi-compartment cold brew tea device. Background Technology

[0002] Cold brew tea has a fresher, sweeter taste compared to hot brewed tea, with significantly reduced bitterness. When brewed with hot water, the alkaline substances in the tea leaves are released rapidly, resulting in bitterness. However, brewing with cold water reduces the release of alkaline substances, eliminating noticeable bitterness and creating a smoother, more delicate flavor. It offers a unique and refreshing experience, perfect for cooling down in the summer. Cold brew shops often need to extract different flavors or types of tea at once to handle high customer volume, and existing single-compartment cold brew machines cannot meet this demand. Summary of the Invention

[0003] To address the aforementioned technical problems, this utility model provides a multi-compartment cold brew tea device.

[0004] To achieve the objective of this utility model, the technical solution adopted by this utility model is as follows:

[0005] A multi-compartment cold brew tea device includes a cabinet, a refrigeration component, and multiple cold brew units. The upper end of the cabinet has a working trough, which is divided into multiple parallel brewing pools. Each cold brew unit includes one brewing pool and a tea strainer. The upper end of each brewing pool has a tea compartment for inserting the tea strainer into the pool. The side wall of the tea compartment has a water inlet. An ultrasonic generator is installed on the side wall of each brewing pool. Each brewing pool has a corresponding water tap installed above it. The water outlet at the bottom of each pool is connected to the water tap, and the water inlet is connected to a water purifier. The refrigeration component includes a refrigeration compressor and an evaporator connected to the compressor via piping. The evaporator is a coiled tube located in each brewing pool.

[0006] The water inlet of the hot spring pool described in this utility model is connected to the main water inlet pipe through a water inlet branch pipe, and a water inlet valve is installed on the water inlet branch pipe. The main water inlet pipe is connected to the water source pipe and the drainage pipe through a three-way solenoid valve. The water outlet of the hot spring pool is connected to the main water outlet pipe through an water outlet branch pipe, and a water outlet valve is installed on each of the water outlet branch pipes. The main water outlet pipe is connected to the main drinking water pipe and the drainage pipe through a three-way solenoid valve. The main drinking water pipe is connected to the drinking water branch pipe, and the drinking water branch pipe is connected to the water faucet. A water inlet pump is installed on the main water inlet pipe, and a water outlet pump is installed on the main drinking water pipe.

[0007] Preferably, the cold extraction unit further includes a water level probe one, a water level probe two, and a temperature sensor. The water level probe one is installed on the upper part of the soup tank, and the water level probe two is installed on the lower part of the soup tank. The water level probe one, the water level probe two, and the temperature sensor are connected to the input terminal of the controller. The water inlet valve, the water outlet valve, the three-way solenoid valve one, the three-way solenoid valve two, the water inlet pump, and the water outlet pump are connected to the output terminal of the controller.

[0008] The refrigeration compressor described in this utility model is installed in the cabinet below the working slot.

[0009] The present invention provides a partition between the tea strainer and the evaporator in the soup pool, and the partition has multiple overflow holes evenly distributed on it.

[0010] The coiled tube described in this utility model is a stainless steel tube.

[0011] The working groove of this utility model is provided with a cover plate on the top, and the tea compartment is provided with a tea compartment cover.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model adopts a multi-compartment structure, which can simultaneously extract cold brew tea of ​​different flavors or different types of tea according to different customer tastes.

[0014] 2. This utility model uses a refrigeration compressor and evaporator for cooling, which results in a fast cooling speed. It also uses high-frequency ultrasonic vibration to vibrate the tea powder, which greatly improves the rapid fusion of tea essence and ice water, reduces the tea extraction time, and allows for the production of cold-brewed tea with the best taste in a short time.

[0015] 3. This utility model forms a closed loop between the inlet and outlet of the tea pool. During the extraction process, the water pump controls the water flow to keep it flowing from the outlet to the inlet, realizing water circulation in the tea pool. This allows the essence of the tea leaves to be quickly blended into the ice water through the flow of the tea soup.

[0016] 4. By installing temperature sensors and upper and lower water level probes in the hot water tank, the entire cold brewing process is automated, ensuring that the hot water tank always contains freshly brewed cold brew tea. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the multi-compartment cold brew tea device of this utility model.

[0018] Figure 2 This is a schematic diagram of the cold extraction unit.

[0019] Figure 3 This is a schematic diagram of the piping connection of the cold brew tea apparatus in Example 2.

[0020] Figure 4This is a control principle diagram of the cold brew tea device in Example 3.

[0021] Attached reference numerals: 1. Cabinet, 2. Working tank, 3. Ultrasonic generator, 4. Tea strainer, 5. Tea hopper, 6. Water tap, 7. Evaporator, 8. Refrigeration compressor, 9. Water purifier, 10. Main inlet pipe, 11. Main outlet pipe, 12. Main drinking water pipe, 13. Drain pipe, 14. Three-way solenoid valve one, 15. Three-way solenoid valve two, 16. Inlet valve, 17. Outlet valve, 18. Inlet, 19. Outlet, 20. Cold brewing unit, 21. Soup basin, 22. Cover plate, 23. Water source pipe, 30. Temperature sensor, 31. Water level probe one, 32. Water level probe two, 40. Inlet pump, 50. Outlet pump, 60. Partition plate, 101. Inlet water pipe, 111. Outlet water pipe, 121. Drinking water branch pipe. Detailed Implementation

[0022] To more clearly and in detail illustrate the objective technical solution of this utility model, the present utility model will be further described below through relevant embodiments. The following embodiments are merely illustrative of the implementation methods of this utility model and do not limit the scope of protection of this utility model.

[0023] Example 1

[0024] like Figure 1 and 2 As shown, a multi-compartment cold brew tea device includes a cabinet 1, a refrigeration component, and multiple cold brew units 20. The upper end of the cabinet 1 is provided with a working trough 2, which is divided into multiple parallel brewing pools 21. Each cold brew unit 20 includes one brewing pool 21 and a tea strainer 4. The upper end of each brewing pool 21 is provided with a tea chamber 5 for inserting the tea strainer 4 into the brewing pool 21. A water inlet 18 is provided on the side wall of the tea chamber 5. An ultrasonic generator 3 is installed on the side wall of each brewing pool 21. A corresponding water faucet 6 is installed above each brewing pool 21. A water outlet 19 at the bottom of each brewing pool 21 is connected to the water faucet 6, and the water inlet 18 is connected to a water purifier 9. The refrigeration component includes a refrigeration compressor 8 and an evaporator 7 connected to the refrigeration compressor 8 via pipes. The evaporator 7 is a coiled tube installed in each brewing pool 21.

[0025] Different flavored tea powders can be placed in the tea strainer 4 of each cold extraction unit 20. Then, the tea strainer 4 is placed into the soup pool 21 through the tea chamber 5. Water is introduced through the water inlet 18. After the soup pool 21 is filled with water, the refrigeration compressor 8 starts to work. When the liquid refrigerant of the refrigeration component flows through the evaporator 7, it will absorb the heat of the external tea water to cool the soup pool 21. The ultrasonic generator 3 is turned on, and the tea powder is vibrated at a high frequency to make the essence inside the tea powder quickly dissolve in the water. After the extraction is completed, the ultrasonic generator stops working.

[0026] After extraction, the cold-brewed tea in pool 21 is ready for sale and consumption. Turn on tap 6, and the brewed tea will be dispensed from the tap.

[0027] Example 2

[0028] This embodiment is based on embodiment 1:

[0029] like Figure 3 As shown, the water inlet 18 of the hot spring pool 21 is connected to the main water inlet pipe 10 via a water inlet branch pipe 101. A water inlet valve 16 is installed on the water inlet branch pipe 101. The main water inlet pipe 10 is connected to the water source pipe 23 and the drainage pipe 13 via a three-way solenoid valve 14. The water outlet 19 of the hot spring pool 21 is connected to the main water outlet pipe 11 via a water outlet branch pipe 111. Each water outlet branch pipe 111 is equipped with a water outlet valve 17. The main water outlet pipe 11 is connected to the main drinking water pipe 12 and the drainage pipe 13 via a three-way solenoid valve 15. The main drinking water pipe 12 is connected to the drinking water branch pipe 121, and the drinking water branch pipe 121 is connected to the water faucet 6. A water inlet pump 40 is installed on the main water inlet pipe 10, and a water outlet pump 50 is installed on the main drinking water pipe 12.

[0030] The main inlet pipe 10, the drain pipe 13, and the main outlet pipe 11 are connected. Each water tank 21 is connected to the main pipe via branch pipes, forming a closed loop between the water inlet 18 and the water outlet 19 of each water tank 21. During the extraction process, the water pump 40 operates, ensuring that the water flows from the outlet to the inlet, thus achieving water circulation within the water tank. This reciprocating circulation allows for faster cold extraction. Furthermore, the circulation of water tanks can be controlled at will via the inlet and outlet valves on the branch pipes.

[0031] The water pump 50 starts drawing water when the water tap 6 is opened, and the brewed tea is dispensed from the tap. When the water tap is closed, the water pump 50 stops working, and the tea is no longer dispensed.

[0032] Example 3

[0033] This embodiment is based on embodiment 2:

[0034] like Figure 4 As shown, the cold extraction unit 20 also includes a water level probe 31, a water level probe 32, and a temperature sensor 30. The water level probe 31 is installed on the upper part of the soup tank 21, and the water level probe 32 is installed on the lower part of the soup tank 21. The water level probe 31, the water level probe 32, and the temperature sensor 30 are connected to the input terminal of the controller. The water inlet valve 16, the water outlet valve 17, the three-way solenoid valve 14, the three-way solenoid valve 15, the water inlet pump 40, and the water outlet pump 50 are connected to the output terminal of the controller.

[0035] Once the water level reaches its upper limit, water level probe 31 sends a signal to the controller to stop water injection and initiate internal water circulation. The refrigeration compressor 8 starts working, the tea bath cools, and the ultrasonic generator 3 starts working, vibrating the tea powder at high frequency to quickly dissolve its essence in the water. Under the internal water circulation, the rapid flow of water quickly mixes the tea essence. The water temperature is rapidly cooled by the refrigeration compressor 8. When the water temperature reaches the set temperature, the temperature sensor 30 sends a signal to the controller, and the refrigeration compressor 8 stops working. Similarly, when the water temperature exceeds the set temperature, the refrigeration compressor 8 starts cooling again, repeating the cycle to quickly achieve the cold extraction effect. During this period, the ultrasonic operation can be controlled independently, allowing the ultrasonic and refrigeration cycles to operate simultaneously, or the ultrasonic can be turned off, running only the internal circulation and refrigeration. By controlling the cold extraction time, the ultrasonic operation stops after extraction is complete.

[0036] After extraction, the cold-brewed tea in pool 21 can be sold and consumed. When the water level reaches the lower limit, water level probe 32 sends a signal to the controller, and water is injected into the inlet, filling pool 21 with water again and repeating the cold-brew process.

[0037] The tea strainer can be cleaned separately or returned to its original position after the tea leaves are emptied. Water enters through inlet 18 to rinse the tea strainer, which then flows into the soup basin. Use a cleaning brush to clean the inner wall of the soup basin. Turn on the water tap 6, and the cleaned water will flow out from the bottom of the soup basin and through the water tap 6. This cycle is repeated for a period of time to ensure that the soup basin and pipes are thoroughly cleaned.

[0038] Example 4

[0039] This embodiment is based on embodiment 1:

[0040] A partition 60 is provided between the tea strainer 4 and the evaporator 7 in the soup pool 21, and multiple overflow holes are evenly distributed on the partition 60.

[0041] Adding a baffle between the tea strainer and the evaporator creates a buffer zone for the water flow, allowing it to be evenly distributed and flow through the overflow hole of the baffle. This ensures that the tea soup, after being vibrated by ultrasound, is evenly carried into the cooling zone, further ensuring that the tea soup is mixed more evenly and thus ensuring that the extracted tea has the same concentration and taste.

[0042] The coiled tube is made of stainless steel.

[0043] Example 5

[0044] This embodiment is based on embodiment 1:

[0045] The refrigeration compressor 8 is located in the cabinet 1 below the working slot 2.

[0046] A cover plate 22 is provided above the working trough 2, and a tea trough cover 51 is provided on the tea trough 5.

[0047] The ultrasonic generator used in this invention is an ultrasonic transducer with a power of 28KHz~100W; the refrigeration compressor is model ST35W24V; the inlet and outlet pumps are model 683K / ZL; the controller is ESB-STM32-PUMP V1.0; the water level probes are model M3x50-304; and the temperature sensor is model NTC 10K.

[0048] Connections not mentioned in this utility model employ conventional connection methods such as snap-fitting, bonding, riveting, threading, welding, or integral molding.

[0049] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A multi-compartment cold brew tea device, characterized by: The system includes a cabinet, a refrigeration assembly, and multiple cold brewing units. The upper part of the cabinet has a working slot, which is divided into multiple parallel brewing pools. Each cold brewing unit includes one brewing pool and a tea strainer. The upper part of each brewing pool has a tea container for inserting the tea strainer into the pool. The side wall of the tea container has a water inlet. An ultrasonic generator is installed on the side wall of each brewing pool. Each brewing pool has a corresponding water tap installed above it. The water outlet at the bottom of each pool is connected to the water tap, and the water inlet is connected to a water purifier. The refrigeration assembly includes a refrigeration compressor and an evaporator connected to the compressor via piping. The evaporator is a coiled tube located in each brewing pool.

2. The multi-compartment cold brew tea apparatus according to claim 1, characterized in that: The water inlet of the hot spring pool is connected to the main water inlet pipe via a branch inlet pipe, and a water inlet valve is installed on the branch inlet pipe. The main water inlet pipe is connected to the water source pipe and the drainage pipe via a three-way solenoid valve. The water outlet of the hot spring pool is connected to the main water outlet pipe via a branch outlet pipe, and a water outlet valve is installed on each branch outlet pipe. The main water outlet pipe is connected to the main drinking water pipe and the drainage pipe via a three-way solenoid valve. The main drinking water pipe is connected to the branch drinking water pipe, and the branch drinking water pipe is connected to the water faucet. A water inlet pump is installed on the main water inlet pipe, and a water outlet pump is installed on the main drinking water pipe.

3. The multi-compartment cold brew tea apparatus according to claim 2, characterized in that: The cold extraction unit also includes a water level probe one, a water level probe two, and a temperature sensor. The water level probe one is installed on the upper part of the soup tank, and the water level probe two is installed on the lower part of the soup tank. The water level probe one, the water level probe two, and the temperature sensor are connected to the input terminal of the controller. The water inlet valve, the water outlet valve, the three-way solenoid valve one, the three-way solenoid valve two, the water inlet pump, and the water outlet pump are connected to the output terminal of the controller.

4. The multi-compartment cold brew tea apparatus according to claim 1, characterized in that: The refrigeration compressor is located in the cabinet below the working slot.

5. The multi-compartment cold brew tea apparatus according to claim 1, characterized in that: A partition is installed between the tea strainer and the evaporator in the soup pool, and multiple overflow holes are evenly distributed on the partition.

6. The multi-compartment cold brew tea apparatus according to claim 1, characterized in that: The coiled tube is made of stainless steel.

7. The multi-compartment cold brew tea apparatus according to claim 1, characterized in that: The working trough is equipped with a cover plate, and the tea trough is equipped with a tea trough cover.