Temperature change cold brew coffee cup

By combining a temperature-sensitive outer shell with a magnetic stirrer, the problem of uneven extraction and insufficient temperature indication in cold brew coffee is solved, achieving an efficient, convenient, and pure drinking experience with the portable cold brew coffee cup.

CN224483689UActive Publication Date: 2026-07-14CHINA AGRI UNIV

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA AGRI UNIV
Filing Date
2025-07-28
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Current cold brew coffee preparation processes suffer from uneven extraction, insufficient temperature indication, cumbersome structure, and difficulty in cleaning, making it difficult to meet the needs of portability and user experience.

Method used

The dual-layer structure with a temperature-sensitive outer shell, combined with thermochromic materials, a magnetic stirrer, and a removable filter layer, enables temperature sensing and uniform extraction. The lightweight design is achieved through food-grade aluminum materials.

Benefits of technology

It improves extraction uniformity and efficiency, enhances temperature feedback, simplifies the operation process, and improves drinking purity and user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224483689U_ABST
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Abstract

The utility model belongs to cold extraction coffee preparation technical field, concretely relates to a kind of temperature change cold extraction coffee cup, including cup body and temperature change shell, cup cover is arranged at the top of temperature change shell and cup body, the bottom of temperature change shell and cup body is provided with base, motor and battery are arranged in base, the surface of base is provided with button;The inside of cup body is provided with extraction inner layer, filter layer and magnetic stirrer are arranged in extraction inner layer, magnetic stirrer and motor magnetic coupling;Temperature change shell is double-layer structure, the bottom of two temperature change shells is closed to form sealed interlayer, heat-sensitive discoloration material is arranged in interlayer;The coffee cup can realize temperature perception by heat-sensitive discoloration material in temperature change shell, enhances user interaction experience, and magnetic stirrer can improve the mixing uniformity of coffee powder and water, accelerates the dissolution of flavoring material, improves extraction efficiency;Meanwhile, filter layer can filter coffee grounds, prevent it from entering coffee liquid, to improve the drinking purity and customer experience.
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Description

Technical Field

[0001] This utility model belongs to the field of cold brew coffee preparation technology, specifically relating to a temperature-sensitive cold brew coffee cup. Background Technology

[0002] Cold brew coffee refers to coffee brewed at room temperature (20-25℃ and below) for 8-24 hours. It is a coffee brewing method that has emerged in recent years. Due to its low acidity and mild flavor, as well as its convenient consumption attributes, it has been favored by consumers in the global consumer market and has become an important development direction for ready-to-drink coffee.

[0003] However, the traditional cold brew coffee preparation process is time-consuming and highly dependent on space and environment, making it inconvenient to carry around or prepare on-site, and failing to meet the diverse drinking needs of young consumers for "ready-to-drink + customized + fun interaction". Furthermore, during the static extraction process, the uniformity of contact between coffee grounds and water is difficult to control, resulting in low dissolution efficiency, uneven flavor, and sediment buildup, which are detrimental to the stable release of cold brew flavor. Changes in the coffee liquid temperature during cold brew directly affect the cold brew effect; currently, the lack of temperature indication and interactive feedback mechanisms hinders the standardization of extraction quality.

[0004] Currently, there are many portable cold brew coffee brewing cups available both domestically and internationally, such as the Mongdio cold brew pot and the Thermos coffee brewing machine. However, while these tools are highly specialized and have played a role in simplifying the extraction process and improving portability, they still have some shortcomings in terms of functionality and user experience.

[0005] Traditional cold brew coffee brewing cups mostly rely on static extraction, limiting extraction efficiency. The cumbersome disassembly and cleaning of the extraction filter also significantly reduces the user experience. Furthermore, while cold brew coffee is characterized by low-temperature extraction, existing products often lack integrated temperature indicators, failing to help users determine the optimal extraction temperature range. They also lack visual feedback or engaging design elements, failing to meet personalized user needs. Therefore, the research direction for portable cold brew coffee cup product design and functional integration lies in how to improve extraction uniformity and dissolution efficiency during the cold brew process while ensuring flavor expression, simplifying the structure to enhance cleaning and operational convenience, strengthening the temperature perception and interactive experience between the product and the user, and expanding its practicality and stability in diverse consumption scenarios. Utility Model Content

[0006] To address the aforementioned shortcomings of existing technologies, this invention provides a temperature-sensitive cold brew coffee cup, which solves the problems of uneven extraction and insufficient interactive feedback on temperature indication in existing cold brew cups.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A temperature-sensitive cold brew coffee cup is provided, comprising a cup body, an outer temperature-sensitive shell, a detachable lid connected to the top of the cup body, a base connected to the bottom of the cup body, a motor and a battery housed within the base, and a button on the surface of the base; an inner extraction layer is provided inside the cup body, the top of the inner extraction layer is threadedly connected to the inside of the lid, a detachable filter layer is provided at the bottom of the inner extraction layer, and a magnetic stirrer is provided above the filter layer, the magnetic stirrer being magnetically coupled to the motor;

[0009] The thermochromic shell has a double-layer structure, with the bottom ends of the two thermochromic shells closed to form a sealed interlayer, and a thermosensitive color-changing material is placed inside the interlayer.

[0010] The beneficial effects of adopting the above technical solution are as follows: the coffee cup combines functions such as magnetic stirring and temperature-changing color development, effectively solving the problems of uneven extraction, unstable flavor, and insufficient interactive feedback of temperature indication in existing cold brew cups. The thermochromic outer shell features a double-layer structure, with a thermosensitive color-changing material embedded in the interlayer. This material changes color when the water temperature reaches a specific range (e.g., 19Β±1℃), providing a clear indication of the current liquid temperature. This enhances the user experience and improves safety, preventing the cold brew effect from being affected by excessively high or low temperatures. The lid and the inner extraction layer are detachably connected by a threaded connection, facilitating the addition of coffee powder, cold water, and other ingredients, as well as the easy pouring out of the coffee after extraction. It also facilitates cleaning of the inner extraction layer. The motor and battery, located in the base, power the magnetic stirrer. The stirrer's speed can be controlled via buttons on the base, improving extraction uniformity and efficiency. A detachable filter layer at the bottom of the inner extraction layer prevents coffee grounds from mixing into the coffee, ensuring purity and flavor during consumption.

[0011] Furthermore, the filter layer includes a filter screen with a pore size of 160-200 mesh.

[0012] Furthermore, the height of the filter screen is 1 / 3 of the height of the inner extraction layer.

[0013] The beneficial effects of adopting the above technical solution are: the filter can filter coffee grounds and prevent them from entering the coffee liquid, thereby improving the purity of the drink and the customer experience.

[0014] Furthermore, the inner diameter of the temperature-changing outer shell is equal to the inner diameter of the cup lid, and the inner diameter of the extraction inner layer is consistent with the inner diameter of the cup lid, the width of the magnetic stirrer, and the filter screen.

[0015] Furthermore, the temperature-sensitive outer shell and the extraction inner layer are made of food-grade aluminum.

[0016] The beneficial effects of adopting the above technical solution are as follows: aluminum material has the characteristics of low density and light weight. Using food-grade aluminum material to make the temperature-changing outer shell and extraction inner layer can achieve a lightweight structure for coffee cups, making them easier for users to carry and use.

[0017] In summary, the temperature-sensitive cold brew coffee cup provided by this utility model has the following beneficial effects:

[0018] This coffee cup features a food-grade aluminum thermochromic outer shell, which is not only safe and non-toxic, but also uses a thermosensitive color-changing material in its double-layer structure to sense temperature, enhancing the user experience. The magnetic stirrer inside the extraction layer effectively improves the mixing uniformity of coffee powder and water, accelerates the dissolution of flavor substances, and improves extraction efficiency. At the same time, the filter layer inside the extraction layer filters out coffee grounds, preventing them from entering the coffee liquid, thereby improving the purity of the drink and the customer experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the combination for practical purposes;

[0021] Figure 3 This is a diagram showing the usage state of this utility model;

[0022] The components include: 1. Cup lid; 2. Base; 3. Temperature-sensitive outer shell; 4. Inner extraction layer; 5. Filter screen; 6. Magnetic stirrer; 7. Filter layer. Detailed Implementation

[0023] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0024] like Figures 1-3As shown, the temperature-sensitive cold brew coffee cup provided by this utility model includes a cup body, an external temperature-sensitive outer shell 3, a detachable cup lid 1 connected to the top of the cup body and the temperature-sensitive outer shell 3, and a base 2 connected to the bottom of the cup body. The base 2 contains a motor and a battery, and a button is provided on the surface of the base 2. An internal extraction layer 4 is provided inside the cup body. The top of the extraction layer 4 is connected to the inside of the cup lid 1 by a thread. A detachable filter layer 7 is provided at the bottom of the extraction layer 4. A magnetic stirrer 6 is provided above the filter layer 7. The magnetic stirrer 6 is magnetically coupled to the motor, and the rotation speed of the magnetic stirrer 6 is 200-500 r / min. The temperature-sensitive outer shell 3 has a double-layer structure. The bottom ends of the two temperature-sensitive outer shells 3 are closed to form a sealed interlayer, and a thermosensitive color-changing material is provided inside the interlayer.

[0025] In use, open the cup lid 1, remove the extraction inner layer 4 and filter layer 7, put the coffee powder into the dedicated coffee extraction bag, and place the coffee extraction bag inside the filter layer 7 of the coffee cup. The filter layer 7 is a detachable structure. The user fixes the filter layer 7 to the bottom of the extraction inner layer 4 through the threaded structure of the filter layer 7, then adds an appropriate amount of cold water to the extraction inner layer 4. The filter layer 7 containing the coffee extraction bag and the extraction inner layer 4 are then fixed to the cup lid 1 together through the threaded structure. After fixing, press the button on the base 2. The button is electrically connected to the magnetic stirrer 6, and the magnetic stirrer 6 is started. The speed of the magnetic stirrer is 200-500 r / min. This helps to accelerate the dissolution of substances in coffee powder, improves the uniformity and efficiency of extraction to a certain extent, and avoids the problem of over-extraction caused by excessive speed affecting the taste of coffee. During the stirring process, users can observe the color change of the temperature-sensitive outer shell 3. The temperature-sensitive outer shell 3 adopts a double-layer structure, and the sandwich of the double-layer structure is equipped with a thermosensitive color-changing material. This thermosensitive color-changing material is a liquid. When the water temperature reaches a specific range (such as 19Β±1℃), the temperature-sensitive outer shell 3 will produce a color change, thereby intuitively indicating the current liquid temperature to the user. When the extraction time is up, the user can press the button on the base 2 to stop stirring, open the cup lid 1, and pour out the extracted coffee liquid.

[0026] like Figure 1 and Figure 2 As shown, the filter layer 7 includes a filter screen 5 with a pore size of 160-200 mesh, and the height of the filter screen 5 is 1 / 3 of the height of the inner extraction layer 4. The filter screen 5 filters coffee grounds, preventing them from entering the coffee liquid, thereby improving the purity of the drink and the customer experience.

[0027] In this invention, the inner diameter of the temperature-sensitive outer shell 3 is equal to the inner diameter of the cup lid 1, and the inner diameter of the extraction inner layer 4 is consistent with the inner diameter of the cup lid 1, the width of the magnetic stirrer 6, and the filter screen 5. Furthermore, the body, the temperature-sensitive outer shell 3, and the extraction inner layer 4 are all made of food-grade aluminum. Food-grade aluminum is characterized by its low density and light weight. Using food-grade aluminum to manufacture the temperature-sensitive outer shell 3 and the extraction inner layer 4 achieves a lightweight structure for the coffee cup, making it easier for users to carry and use.

[0028] In summary, the temperature-sensitive cold brew coffee cup provided by this utility model can achieve temperature sensing through the thermosensitive color-changing material in the double-layer structure of the temperature-sensitive outer shell 3, enhancing the user interaction experience. The magnetic stirrer 6 set inside the extraction inner layer 4 can effectively improve the mixing uniformity of coffee powder and water, accelerate the dissolution of flavor substances, and improve extraction efficiency. In addition, the filter layer 7 set inside the extraction inner layer 4 can filter coffee grounds, preventing them from entering the coffee liquid, improving the purity of drinking and the customer experience.

Claims

1. A temperature-sensitive cold brew coffee cup, characterized in that: The cup includes a cup body, an external temperature-sensitive outer shell (3), a detachable cup lid (1) between the temperature-sensitive outer shell (3) and the top of the cup body, a base (2) between the temperature-sensitive outer shell (3) and the bottom of the cup body, a motor and a battery inside the base (2), and a button on the surface of the base (2); an internal extraction layer (4) is provided inside the cup body, the top of the extraction layer (4) is connected to the inside of the cup lid (1) by a thread, a detachable filter layer (7) is provided at the bottom of the extraction layer (4), and a magnetic stirrer (6) is provided above the filter layer (7), and the magnetic stirrer (6) is magnetically coupled to the motor; The thermochromic shell (3) has a double-layer structure. The bottom ends of the two thermochromic shells (3) are closed to form a sealed interlayer, and a thermochromic material is provided in the interlayer.

2. The temperature-sensitive cold brew coffee cup according to claim 1, characterized in that: The filter layer (7) includes a filter screen (5) with a pore size of 160-200 mesh.

3. The temperature-sensitive cold brew coffee cup according to claim 2, characterized in that: The height of the filter (5) is 1 / 3 of the height of the extraction inner layer (4).

4. The temperature-sensitive cold brew coffee cup according to claim 1, characterized in that: The inner diameter of the temperature-changing outer shell (3) is equal to the inner diameter of the cup lid (1), and the inner diameter of the extraction inner layer (4) is consistent with the inner diameter of the cup lid (1), the width of the magnetic stirrer (6), and the filter screen (5).

5. The temperature-sensitive cold brew coffee cup according to claim 1, characterized in that: The temperature-sensitive outer shell (3) and the extraction inner layer (4) are made of food-grade aluminum.