Low-temperature extraction machine table

By introducing a constant-temperature cooling zone and sterilization components into the low-temperature extraction machine, the problem of unstable extraction in non-constant-temperature environments for iced drip coffee devices is solved, ensuring the consistency and stability of beverage quality and making it suitable for outdoor use.

CN224262053UActive Publication Date: 2026-05-19林建义
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
林建义
Filing Date
2025-04-29
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing cold drip coffee equipment is easily affected by temperature changes in outdoor or high-temperature environments, resulting in unstable extraction rates and flavor degradation, making it difficult to maintain beverage quality in non-constant temperature environments.

Method used

A low-temperature extraction machine was designed, comprising a constant-temperature cooling zone, a fermentation extraction zone, and a refrigerated liquid collection zone. It is equipped with refrigeration components and sterilization devices to ensure the stability and hygiene of the extraction process by controlling the liquid temperature and sterilization.

Benefits of technology

It achieves constant liquid temperature under different environments, improves the consistency and stability of beverage quality, is suitable for long-term outdoor use, and avoids the impact of environmental factors on the extraction process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224262053U_ABST
    Figure CN224262053U_ABST
Patent Text Reader

Abstract

The utility model discloses a low-temperature extraction machine table which comprises a machine table body, the machine table body is divided into a constant-temperature refrigeration area, a fermentation extraction area and a refrigeration liquid collection area, the outer surface of the machine table body is provided with a water inlet corresponding to the constant-temperature refrigeration area, a refrigeration assembly is arranged in the constant-temperature refrigeration area, and the water inlet is communicated with the refrigeration assembly. After liquid is poured in through the water inlet, the refrigeration assembly cools the liquid; the fermentation extraction area is connected with the constant-temperature refrigeration area, and a container filled with an ice drop extract is arranged in the fermentation extraction area and used for containing liquid cooled by a refrigeration assembly; the refrigeration liquid collection area is connected with the fermentation extraction area, a liquid collection container and a connecting pipe are arranged in the refrigeration liquid collection area, the two ends of the connecting pipe are communicated with the liquid collection container and the containing container respectively, and the connecting pipe is used for guiding extracted liquid to enter the liquid collection container.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a low-temperature extraction machine, specifically a machine used in the field of beverage ice drip extraction, which enables beverages to complete extraction and fermentation in a constant low-temperature environment. Background Technology

[0002] Fitness is the foundation for strengthening the body and ensuring a healthy life. In modern society, the trend of fitness is evident; it's common to see people carrying a cup of coffee on the street. With the increasing demand for coffee, the coffee market is booming. According to a global coffee market report, the market size will reach $170.8 billion by 2030, demonstrating its immense value. As living standards improve, people have higher expectations for coffee flavor. Besides using different varieties of coffee beans, various brewing methods have emerged. Common methods include pour-over coffee (brewed with hot water), cold brew coffee (brewed with cold water), and the increasingly popular iced drip coffee. Iced drip coffee is favored by consumers for its milder taste and more nuanced flavor profile, especially in hot climates and during the summer, where its market value is quite high.

[0003] Compared to cold brew coffee, which is also extracted at low temperatures, cold brew coffee involves a long, static steeping process, which can easily extract too much bitterness and caffeine. In contrast, cold drip coffee uses a slow, dripping extraction method, which effectively controls the contact time between the coffee grounds and the coffee, retaining more aromatic esters and natural fruit acids while reducing bitterness and irritants. This allows consumers to enjoy a more refreshing coffee flavor. Furthermore, scientific evidence has shown that cold drip coffee generally has a lower caffeine content because the coffee grounds dissolve less efficiently at low temperatures, resulting in a slower rate of caffeine release. The dripping extraction method also prevents the coffee grounds from becoming over-saturated. In short, cold drip coffee can extract coffee with a lower caffeine content while still maintaining a high level of flavor, making it highly attractive to consumers who need to control their caffeine intake or those who prefer a more delicate flavor profile.

[0004] Most commercially available cold drip coffee makers have a three-layer structure. The top layer is usually a container for holding the water-ice mixture, with a controllable valve to regulate the drip rate. The middle layer is typically a coffee powder container, filled with filter paper and coffee powder. The bottom layer is a collection container, connected to the middle and bottom layers by a guide tube, allowing the extracted coffee liquid to flow from the middle layer into the collection container to complete the cold drip extraction. This structure is relatively stable in air-conditioned environments, but in outdoor stalls, open-air markets, or mobile coffee stands, the ambient temperature and sunlight are uncontrollable, causing the ice to melt rapidly. This not only raises the temperature during the cold drip process but can also cause variations in the extraction rate and flavor degradation. In other words, the ice, influenced by the external environment, can cause the water temperature to deviate from the ideal cold drip conditions, affecting the stability of the final flavor. Furthermore, the reduction in ice volume can cause changes in water pressure, resulting in unstable dripping and inconsistent extraction processes, leading to varying coffee quality.

[0005] In view of this, how to provide a low-temperature extraction machine with cooling capabilities, so that the iced drip coffee process can still operate for a long time in high outdoor environments, is a key development direction for companies in related fields today. Utility Model Content

[0006] The purpose of this invention is to ensure that the water temperature is maintained within an ideal range during the ice drip extraction process, thereby maintaining the quality of the extracted beverage. This avoids the problem of conventional ice drip devices being easily affected by environmental factors, such as rapid melting of ice in outdoor, high-temperature environments, or even at room temperature, which disrupts the stable low-temperature ice drip extraction process and results in a beverage with poor flavor. To achieve the aforementioned objective and overcome the shortcomings of conventional methods, this invention provides a low-temperature extraction machine, comprising: a machine body, which is divided into a constant-temperature refrigeration zone, a fermentation extraction zone, and a cold-collection zone. The outer surface of the machine body has a water inlet corresponding to the location of the constant temperature refrigeration zone. The constant temperature refrigeration zone has a refrigeration component. The water inlet and the refrigeration component are connected. After a liquid is poured in through the water inlet, the refrigeration component performs a normal cooling operation on the liquid. The fermentation extraction zone is connected to the constant temperature refrigeration zone. The fermentation extraction zone has a container containing ice drop extract for holding the liquid cooled by the refrigeration component. The refrigerated liquid collection zone is connected to the fermentation extraction zone. The refrigerated liquid collection zone has a liquid collection container and a connecting pipe. The two ends of the connecting pipe are connected to the liquid collection container and the container, respectively. The connecting pipe is used to guide the extracted liquid into the liquid collection container.

[0007] According to the technology defined above, the advantages of this utility model are that the constant temperature refrigeration zone can keep the liquid constantly within the ideal temperature range for ice drop extraction, so that the quality of the extracted beverages is more consistent when the user performs ice drop extraction. In addition, because the machine has a stable cooling capacity, it can adapt to different ambient temperatures and is suitable for long-term placement. Unlike traditional ice drop devices, it is not easily affected by the environment and is not easy to commercialize or use for a long time. It is evident that this utility model is indeed practical and progressive, and is worthy of promotion in the industry. Attached Figure Description

[0008] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0009] Figure 2 This is a schematic diagram of the internal structure of the machine tool of this utility model;

[0010] Figure 3 for Figure 1 A three-dimensional diagram showing the disassembled parts;

[0011] Figure 4 This is a schematic diagram showing the usage state of this utility model;

[0012] Figure 5 A schematic diagram showing the opening of the first door, second door, and third door of this utility model;

[0013] Figure 6 A schematic diagram of the structure for sterilization of the sterilization component of this utility model;

[0014] Figure 7 A schematic diagram of the structure of the filter element of this utility model for filtration;

[0015] Explanation of markings in the diagram:

[0016] Machine body 1;

[0017] Constant temperature refrigeration zone 11;

[0018] Refrigeration component 111;

[0019] Container 112;

[0020] First phylum 113;

[0021] Fermentation and extraction zone 12;

[0022] Container 121;

[0023] Second gate body 122;

[0024] Refrigerated liquid collection area 13;

[0025] Liquid collection container 131;

[0026] Connecting pipe 132;

[0027] Third gate body 133;

[0028] Inlet 14;

[0029] Liquid 2;

[0030] Ice drop extract 3;

[0031] Valve assembly 4;

[0032] Valve 41;

[0033] Control component 42;

[0034] Filter component 5;

[0035] Sterilization component 6. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0038] The following is a reference to the appendix. Figure 1 To be continued Figure 7This invention describes a low-temperature extraction apparatus, comprising: an apparatus body 1, which internally comprises a constant-temperature refrigeration zone 11, a fermentation extraction zone 12, and a refrigerated liquid collection zone 13. The outer surface of the apparatus body 1 has a water inlet 14 corresponding to the position of the constant-temperature refrigeration zone 11. A refrigeration component 111 is located within the constant-temperature refrigeration zone 11. The water inlet 14 and the refrigeration component 111 are connected. After a liquid 2 is poured in through the water inlet 14, the refrigeration component 111 performs a normal cooling operation on the liquid 2. The fermentation extraction zone 12 is connected to the constant temperature refrigeration zone 11. The fermentation extraction zone 12 has a container 121 containing ice drop extract 3, used to hold the liquid 2 cooled by the refrigeration component 111. The refrigerated liquid collection zone 13 is connected to the fermentation extraction zone 12. The refrigerated liquid collection zone 13 has a collection container 131 and a connecting pipe 132. Both ends of the connecting pipe 132 are connected to the collection container 131 and the container 121, respectively. The connecting pipe 132 is used to guide the extracted liquid 2 into the collection container 131. The figures used in this document are for illustrative purposes only and are not intended to limit the scope of this invention.

[0039] When a user wishes to perform ice drip extraction, they can first place the ice drip extract 3, such as coffee powder or tea leaves, into the container 121. Then, the container 121 is placed in the fermentation extraction zone 12, and the collection container 131 is placed in the refrigerated collection zone 13. The container 121 and the collection container 131 are connected by a connecting tube 132, which is a spiral tube. The spiral tube's structure stabilizes the flow of liquid 2, reducing the possibility of it splashing directly to the bottom of the container and preventing disturbance to the liquid surface or coffee layer below. Then, liquid 2, such as pure water, is added from the inlet 14 at a manually controlled drip rate. Through the action of the refrigeration component 111, liquid 2 is cooled to 4-7 degrees Celsius to meet the ideal ice drip temperature conditions. Furthermore, to prevent the cooled liquid 2 from remaining at room temperature or... When setting up a stall outdoors, the temperature may deviate from the ideal range due to environmental factors. The constant-temperature cooling zone 11 ensures that the liquid 2 remains constant at ideal ice-drip conditions after cooling, allowing the ice-drip extracted coffee to maintain its optimal flavor. After cooling, the liquid 2 drips into the container 121 within the fermentation extraction zone 12, where the ice-drip extract 3 is extracted. Simultaneously, the ice-drip extract 3 ferments during the ice-drip process, further enhancing the flavor of the extracted beverage. To prevent the beverage from losing its flavor due to improper storage at the ideal temperature after ice-drip extraction, the machine body 1, corresponding to the refrigerated liquid collection zone 13, can be a refrigerator to maintain a constant temperature between 0 and 7 degrees Celsius, ensuring the ice-drip extracted liquid is stored at the ideal temperature. Figures 1 to 4 As shown.

[0040] Furthermore, to prevent the liquid 2 from directly impacting the ice-drop extract 3 and affecting the flavor of the extracted beverage, the constant-temperature refrigeration zone 11 further includes a container 112. This container 112 holds the liquid 2 cooled by the refrigeration unit 111. The liquid 2 drips from the container 112 into the container 121. The container 112 provides a buffering effect as the liquid 2 drips into the container 121. Figures 1 to 4 As shown.

[0041] Continuing from the previous explanation, to avoid instability in the manually controlled drip rate and flow rate fluctuations caused by uneven ice melting speed, a valve assembly 4 is provided. This valve assembly 4 is connected to the container 112. The valve assembly 4 further includes a plurality of valves 41 and a control element 42. The control element 42 is located on the outer surface of the machine body 1 and is electrically connected to each valve 41. The control element 42 controls the opening and closing of each valve 41. The valve assembly 4 controls the flow rate of the liquid 2, cooled by the refrigeration unit 111, from the container 112 into the container 121. Users can operate the control element 42 to set different ice drip parameters according to the desired beverage, enabling precise digital control and improving the consistency of ice drip extraction. Figures 1 to 4 As shown.

[0042] Furthermore, to ensure that the ideal ice-drop temperature range is maintained during the ice-drop process, the refrigeration component 111 is an ice maker or a cooling device. When liquid 2 flows in from the inlet 14, the cooling device rapidly lowers its temperature to between 4 and 7 degrees Celsius, or the ice maker freezes the liquid 2 to meet the low-temperature conditions for ice-drop extraction. The refrigeration component 111 also contains a heat exchange component to maintain a constant low temperature inside the machine body 1, further preventing the temperature from rising due to prolonged storage after the ice-drop process, which could affect the flavor of the extracted beverage. Figures 1 to 4 As shown.

[0043] Furthermore, for ease of operation and maintenance of the machine body 1, the machine body 1 is further equipped with a first door 113, a second door 122, and a third door 133 corresponding to the positions of the constant temperature refrigeration zone 11, the fermentation extraction zone 12, and the refrigerated liquid collection zone 13, respectively. The opening and closing of the first door 113, the second door 122, and the third door 133 allows for the periodic replacement of the refrigeration component 111, the filling or cleaning of the ice drop extract 3 in the container 121, and the cleaning of the liquid collection container 131. Users can perform maintenance, upkeep, or replacement / removal of specific components in specific areas as needed. Figures 1 to 5 As shown.

[0044] Continuing from the previous description, to facilitate user observation of the internal workings of the machine body 1, any one, two, or three of the first door 113, the second door 122, or the third door 133 are made of a light-transmitting material. This allows users to check the internal operation without opening the doors, such as the extraction status of the ice drop extract 3, the liquid collection level in the collection container 131, and whether the refrigeration component 111 is operating normally. This further improves the accuracy of the ice drop extraction operation. Figures 1 to 5 As shown.

[0045] Furthermore, to prevent the growth of bacteria or microorganisms among the ice-drip extracts 3 during prolonged ice-drip extraction, which would not only raise hygiene and safety concerns but also affect the flavor of the extracted beverage, the inner surface of the machine body 1, corresponding to the fermentation extraction zone 12, is further equipped with a plurality of sterilization elements 6. Each sterilization element 6 is an ultraviolet lamp, which sterilizes the ice-drip extracts 3 located in the container 121. Users can set the ultraviolet lamps to continuous irradiation, intermittent irradiation, or activation only before or after ice-drip extraction, depending on the type of ice-drip extracts 3 or different situations. By adjusting the sterilization mode, it is ensured that the liquid from prolonged low-temperature ice-drip extraction remains uncontaminated, improving hygiene and beverage safety, and simultaneously extending the shelf life of the ice-drip extracted liquid. Figure 6 As shown.

[0046] Furthermore, since direct ice dripping using pure water is too costly, a separate filter assembly 5 is provided. This filter assembly 5 is connected to the water inlet 14 and the cooling assembly 111, and is located above the water inlet 14. It is used to filter the liquid 2. The filter assembly 5 is an RO reverse osmosis system. With the installation of the filter assembly 5, users can directly use external water sources for ice dripping when needed. When the external water source passes through the filter assembly 5, impurities are filtered out. RO reverse osmosis further filters out impurities such as particles, organic matter, and heavy metals, further improving purity. This ensures that the flavor of the ice-dried beverage is not affected by water quality issues during subsequent ice dripping, while also reducing production costs. In addition, the filter assembly 5 can also be installed in the constant temperature cooling zone inside the machine body 1. When external water flows in from the water inlet 14, it will first be filtered by the filter assembly 5 and then cooled by the cooling assembly 111 to facilitate subsequent ice dripping operations. Figure 7 As shown.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A low-temperature extraction apparatus, comprising: A machine body, which is divided into a constant temperature refrigeration zone, a fermentation extraction zone and a cold storage liquid collection zone. The outer surface of the machine body has a water inlet corresponding to the position of the constant temperature refrigeration zone. The constant temperature refrigeration zone has a refrigeration component. The water inlet and the refrigeration component are connected. After a liquid is poured in through the water inlet, the refrigeration component performs normal cooling operation on the liquid. The fermentation extraction zone is connected to the constant temperature refrigeration zone. The fermentation extraction zone has a container for holding ice drop extract, which is used to hold the liquid cooled by the refrigeration component. The refrigerated liquid collection area is connected to the fermentation extraction area. The refrigerated liquid collection area has a liquid collection container and a connecting pipe. The two ends of the connecting pipe are respectively connected to the liquid collection container and the holding container. The connecting pipe is used to guide the extracted liquid into the liquid collection container.

2. The low-temperature extraction apparatus according to claim 1, wherein, The constant temperature refrigeration zone further includes a container for holding the liquid cooled by the refrigeration component, the liquid dripping from the container into the holding container.

3. The low-temperature extraction apparatus according to claim 2, wherein, A valve assembly is also provided, which is connected to the container and controls the flow rate of the liquid cooled by the refrigeration unit from the container into the container.

4. The low-temperature extraction apparatus according to claim 3, wherein, The valve assembly further includes a plurality of valves and a control element, which is disposed on the outer surface of the machine body and electrically connected to each valve, and controls the opening and closing of each valve.

5. The low-temperature extraction apparatus according to claim 1, wherein, The refrigeration component is an ice maker or a cooling device.

6. The low-temperature extraction apparatus according to claim 1, wherein, A filter assembly is provided, which is connected to the water inlet and the cooling assembly and is located above the water inlet, for filtering the liquid.

7. The low-temperature extraction apparatus according to claim 6, wherein, This filtration unit is an RO (reverse osmosis) filter.

8. The low-temperature extraction apparatus according to claim 1, wherein, The inner surface of the machine body has a plurality of sterilization elements corresponding to the position of the fermentation extraction zone. Each sterilization element is an ultraviolet lamp tube, which sterilizes the ice drop extract located in the container.

9. The low-temperature extraction apparatus according to claim 1, wherein, The machine body has a first door, a second door, and a third door respectively corresponding to the positions of the constant temperature refrigeration zone, the fermentation extraction zone, and the cold storage collection zone. The opening and closing of the first door, the second door, and the third door can be used to periodically replace the refrigeration components, fill or clean the ice drop extract in the container, and clean the collection container.

10. The low-temperature extraction apparatus according to claim 9, wherein, The first door, the second door, or the third door, any two or three of them, are made of a light-transmitting material.