Coffee machine with milk foam structure
By innovatively combining a single boiler and valve body assembly with a detachable foaming component design, the problems of high energy consumption and lack of milk frothing structure in coffee machines are solved, resulting in an energy-saving and environmentally friendly high-performance coffee machine that enhances market competitiveness and user satisfaction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HAOJIA ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
Existing coffee machines are energy-intensive and lack milk frothing mechanisms, leading to increased electricity costs for users and weak market competitiveness.
It adopts an innovative combination of a single boiler and valve body assembly, which achieves high performance while reducing energy consumption by precisely controlling the steam flow direction. It is also equipped with detachable foaming and storage components to ensure stable steam delivery and milk foam quality.
Significantly reduces energy consumption, carbon emissions, enhances the market competitiveness and user satisfaction of coffee machines, provides a high-quality coffee-making experience, and extends equipment lifespan.
Smart Images
Figure CN224166112U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical appliances, and in particular to a coffee machine with a milk foaming structure. Background Technology
[0002] In current technology, coffee machines often employ a dual-boiler structure, resulting in high energy consumption and increased electricity bills for users. Furthermore, high energy consumption increases carbon emissions, placing greater pressure on the environment. Moreover, most coffee machines on the market lack a milk frothing mechanism, limiting their ability to produce a wide variety of coffees and thus weakening their competitiveness in the market. Utility Model Content
[0003] Therefore, it is necessary to provide a coffee machine with a milk frothing mechanism to address the problems of high energy consumption and lack of milk frothing mechanism in coffee machines.
[0004] A coffee machine with a milk foaming structure includes: a housing; a boiler disposed on the housing, the boiler having a boiler outlet; a brewing assembly disposed on the housing, the brewing assembly having a brewing air inlet and a brewing air outlet, the brewing air inlet communicating with the boiler outlet; a valve body assembly disposed on the housing, the valve body assembly having a first air inlet and a second air outlet, the first air inlet communicating with the brewing air outlet; and a foaming assembly disposed on the housing, the foaming assembly having a foaming air inlet channel and a foaming channel, the second air outlet, the foaming air inlet channel, and the foaming channel being sequentially connected.
[0005] The aforementioned coffee machine features a milk frothing structure. Through an innovative combination of a single boiler and valve assembly, it achieves high performance while demonstrating outstanding energy-saving advantages. Compared to commonly available dual-boiler coffee machines, this product is equipped with only one boiler. Precise control of the valve assembly allows steam to enter through the first air inlet and exit through the second air outlet, flexibly adapting to brewing and frothing needs. This design significantly reduces the overall power consumption, effectively reducing energy consumption while meeting users' diverse needs for coffee and milk frothing. This aligns with the current trend of energy conservation and environmental protection, saving users operating costs and reducing carbon emissions. The boiler, as the core heat source, generates steam that is systematically delivered to the brewing and frothing components via the boiler outlet. The brewing component receives steam through the brewing air inlet, and the brewing air outlet ensures smooth steam flow, maintaining a stable brewing process and imparting a rich flavor and aroma to the coffee. The frothing component's frothing air inlet channel connects with other components, fully utilizing steam to produce delicate and rich milk foam, enhancing the taste of the coffee beverage. Furthermore, all components are integrated into the housing, resulting in a compact structure with minimal space occupation. The gas path system is rationally laid out, facilitating daily maintenance and cleaning. The overall design balances functionality, practicality, and environmental friendliness, providing users with an efficient, convenient, and high-quality coffee-making experience, significantly enhancing the product's market competitiveness and user satisfaction.
[0006] In one embodiment, the foaming assembly includes a connecting pipe, a storage component, and a foaming pipe. The connecting pipe is mounted on the housing, the storage component is mounted on the connecting pipe, and the foaming pipe is mounted on the connecting pipe. The connecting pipe has a foaming air inlet channel, and the foaming pipe has the foaming channel. By securely mounting the connecting pipe to the housing, its internal foaming air inlet channel can smoothly communicate with components such as the boiler outlet, ensuring stable and efficient steam input. This stable steam transmission lays a solid foundation for the subsequent foaming process. The storage component is detachable from the connecting pipe, a design with multiple advantages. On the one hand, its detachable nature allows users to add or replace storage components of different capacities according to actual needs, flexibly adapting to whether making small quantities of fine coffee or serving beverages to multiple people simultaneously. On the other hand, it facilitates cleaning and maintenance of the storage component, preventing milk residue from breeding bacteria and ensuring the hygiene and safety of coffee beverages. The foaming tube also features a detachable design. Its internal foaming channels work in conjunction with the connecting tube to transform the input steam into fine, dense milk foam. The detachable foaming tube facilitates timely cleaning after milk foaming, preventing milk residue buildup that could affect foaming results and coffee machine performance. Furthermore, when the foaming tube becomes damaged or worn, users can easily disassemble and replace it with a new one, reducing maintenance costs and difficulty, extending the overall lifespan of the coffee machine, and further enhancing the product's practicality and economy.
[0007] In one embodiment, the connecting pipe includes a connecting block, a main pipe, and a mixing foaming component. The connecting block is disposed on the housing, the main pipe is disposed on the connecting block, the mixing foaming component is disposed on the main pipe, the storage component, and the foaming pipe are disposed on the main pipe. The main pipe has a pressurization channel and a feeding chamber, the mixing foaming component has a mixing foaming chamber, the pressurization channel communicates with the mixing foaming chamber, the feeding chamber communicates with the storage component, the feeding chamber communicates with the mixing foaming chamber, and the mixing foaming chamber communicates with the foaming channel. By securely mounting the connecting block on the housing, the stability of subsequent component installation is ensured, preventing leakage or instability during steam transmission due to shaking. The main pipe, mounted on the connecting block, has a pressurization channel inside that communicates with the mixing foaming chamber of the mixing foaming component, forming the core path for steam pressurization. When steam generated by the boiler enters the pressurization channel, it undergoes secondary pressurization in the mixing foaming chamber, enabling it to be delivered to the foaming pipe at a higher pressure and flow rate. This pressurized design allows for more thorough mixing of steam and milk, resulting in a rapid and fine foam that improves both foam quality and production efficiency. Simultaneously, the main feed chamber of the main pipe connects to both the storage component and the mixing and foaming chamber, achieving a rational separation and fusion of steam and milk. On one hand, the milk in the storage component is introduced into the feed chamber via the Venturi principle, and then into the steam transmission path for thorough mixing with the pressurized steam. On the other hand, the mixed milk foam is smoothly transported to the foaming channel for discharge through the connection between the feed chamber and the mixing and foaming chamber, ensuring a smooth milk foam production process. Furthermore, the storage component and foaming tube are detachable from the main pipe. This not only facilitates cleaning of the components and prevents milk residue buildup from affecting performance, but also allows for timely replacement of damaged parts, reducing maintenance costs and extending the lifespan of the connecting pipes and the entire coffee machine.
[0008] In one embodiment, the main pipe includes a pressurizing component and a transition pipe. The pressurizing component is disposed on the connecting block, the transition pipe is disposed on the pressurizing component, the mixing and foaming component is disposed on the transition pipe, the foaming pipe is disposed on the transition pipe and / or the mixing and foaming component, and the storage component is disposed on the pressurizing component and / or the transition pipe. The pressurizing component has the pressurizing channel, and the transition pipe has the feeding chamber. By directly disposing of the pressurizing component on the connecting block, its internal pressurizing channel becomes the first acceleration channel for steam to enter the main pipe. The steam generated by the boiler is initially pressurized through this channel, laying the foundation for the subsequent formation of high-quality milk foam, effectively increasing the initial pressure and flow rate of the steam, and enhancing the efficiency of steam-milk mixing. The transition pipe is disposed above the pressurizing component, and its internal feeding chamber plays a key role in the milk foam making process. On one hand, it connects to the storage component, allowing the milk to flow smoothly from the feeding chamber into the steam transmission path; on the other hand, it connects to the mixing and foaming chamber of the mixing and foaming component, ensuring that the initially mixed milk and steam are further pressurized and fully integrated in the mixing and foaming chamber, ultimately forming a fine and dense milk foam. The integrated design of the pressurizing component and the transition pipe not only significantly enhances the structural strength and stability of the main component, reduces the risk of steam leakage that may be caused by component splicing, and ensures the efficiency and sealing of steam transmission, but also simplifies the manufacturing process and reduces production difficulty and cost. At the same time, the foaming pipe can be flexibly installed on the transition pipe and / or the mixing and foaming component, and the storage component can be installed on the pressurizing component and / or the transition pipe. This versatile disassembly and assembly design allows users to adjust the component combination according to actual needs, and also facilitates targeted cleaning and maintenance of each component, greatly improving user convenience and the durability of the coffee machine.
[0009] In one embodiment, the cross-sectional area of the pressurizing channel near the feed chamber is smaller than the cross-sectional area of the pressurizing channel away from the feed chamber. By utilizing the design where the cross-sectional area of the pressurizing channel near the feed chamber is smaller than the cross-sectional area away from the feed chamber, from a fluid dynamics perspective, when steam flows from the end with the larger cross-sectional area to the end with the smaller cross-sectional area, according to the continuity equation, the steam flow rate through each cross-section of the channel remains constant per unit time, and the steam velocity will be significantly increased. This increased velocity allows the steam to acquire higher kinetic energy before entering the feed chamber, enabling it to mix with the milk more quickly and powerfully. As the steam passes through the gradually narrowing channel, the pressure increases accordingly. This pressurization effect provides a good foundation for subsequent secondary pressurization in the mixing and foaming chamber, further ensuring that the steam can participate in milk foam making at appropriate pressure and state, ensuring the stability and consistency of the milk foam, and meeting users' needs for different milk foam textures.
[0010] In one embodiment, the cross-sectional area of the mixing and foaming chamber near the feed chamber is smaller than the cross-sectional area of the mixing and foaming chamber away from the feed chamber. This design of varying cross-sectional area in the mixing and foaming chamber allows for a secondary increase in steam pressure. As the steam flows through the gradually narrowing channel, the pressure continuously accumulates, eventually entering the feed chamber under high pressure. This not only ensures that the steam fully disperses and emulsifies the milk, but also allows the mixed milk foam to tightly aggregate under high pressure, preventing problems such as collapse and defoaming due to insufficient pressure during output. This ensures that the milk foam exits the foaming channel in a full and firm state, enhancing the visual and taste experience of the coffee beverage.
[0011] In one embodiment, the storage component includes a storage box and a dispensing pipe. The storage box is mounted on the connecting pipe and has a storage cavity. One end of the dispensing pipe is detachable from the connecting pipe and extends toward the storage cavity. The storage cavity communicates with the foaming channel through the dispensing pipe. By detachably mounting the storage box on the connecting pipe, this detachable structure provides users with great flexibility: on the one hand, users can freely choose storage boxes of different capacities according to their actual needs, easily meeting the requirements of storing small amounts of milk for a single cup of coffee or preparing large-capacity drinks for a group gathering; on the other hand, it facilitates timely disassembly and cleaning after use, preventing milk residue from breeding bacteria and effectively ensuring the hygiene and safety of coffee drinks. The storage cavity inside the storage box provides ample storage space for the milk. Its regular spatial design ensures that the milk can be stored in a relatively stable environment, reducing the risk of spillage or spoilage due to shaking, collisions, or other factors. The detachable dispensing pipe, extending toward the storage cavity, cleverly achieves directional delivery of the milk. Utilizing the Venturi principle, the milk in the storage chamber flows smoothly into the feeding chamber along the discharge pipe and enters the foaming channel with the airflow, where it mixes thoroughly with steam to form milk foam. The detachable design makes the discharge pipe easy to clean after use, preventing milk residue buildup from affecting milk delivery efficiency and quality.
[0012] In one embodiment, the foaming assembly further includes an air inlet valve disposed on the connecting pipe. The air inlet valve is used to adjust the airflow rate of the connecting pipe, thereby adjusting the foaming effect. By installing the air inlet valve on the connecting pipe and precisely adjusting the airflow rate, the output intensity of steam and the milk foaming effect are directly affected. In actual use, different types of coffee drinks have different requirements for milk foam texture. For example, when making cappuccino, a fine, dense milk foam with a certain thickness is required. In this case, the airflow rate can be appropriately reduced by the air inlet valve, allowing the steam to enter the foaming channel at a relatively stable flow rate, slowly and fully blending with the milk to form a uniform and fine milk foam. When making latte, a lighter and smoother milk foam is required. In this case, the airflow rate of the air inlet valve can be increased, allowing the steam to quickly impact the milk, producing a more fluffy milk foam. This flexible airflow adjustment meets diverse coffee making needs, allowing users to easily make high-quality coffee that suits different taste preferences. In addition, the presence of the air inlet valve can also effectively cope with steam pressure fluctuations under different usage scenarios. When a coffee machine operates continuously for a long time, the steam pressure generated by the boiler may change. The air intake valve can adjust the air flow in time to maintain a stable steam output and ensure the consistency of milk foam quality.
[0013] In one embodiment, the valve body assembly includes a first valve body and a second valve body, both of which are mounted on the housing. The first valve body has a first air inlet and a first air outlet, and the second valve body has a second air inlet and a second air outlet. The first air outlet communicates with the second air inlet. By incorporating the first and second valve bodies, precise control of the steam flow direction and flow rate is achieved. At different operating stages, the corresponding valve body is opened or closed as needed, ensuring smooth operation of the machine during preheating, draining residual water from the pipes, and milk frothing, thus improving the quality and efficiency of coffee making and ensuring the stable operation of the entire coffee machine system. Furthermore, this precise control can be flexibly adjusted according to different coffee making needs, providing users with a diverse selection of coffee beverages.
[0014] In one embodiment, a drain element is also included, disposed on the housing, and the valve body assembly has a drain outlet, with the drain element communicating with the drain outlet. By connecting the drain outlet of the valve body assembly to the drain element, condensation inside the coffee machine is drained. When the specialty coffee function is activated, the first valve body opens, while the second valve body closes. At this time, steam enters the first air inlet from the boiler through the boiler outlet. Because the second valve body is closed, the steam can only be discharged through the drain outlet. This design aims to use the pressure of steam to drain residual water from the pipes. After the machine has been out of use for a period of time, some condensate may remain in the pipes; if this water is not drained, it will affect the quality of subsequent coffee and milk foam production. This method ensures the cleanliness and dryness of the pipes, preparing for the production of high-quality coffee beverages.
[0015] In one embodiment, a water tank is also included, disposed on the housing, and the water tank has a water outlet connected to the boiler. By placing the water tank on the housing, a continuous and stable water source is provided for the coffee machine's operation. The water tank stores a certain amount of water, which flows out from the water tank outlet into the boiler for heating when the coffee machine is started, meeting the hot water or steam requirements for coffee making. Whether making espresso or creating milk foam using steam, a sufficient water supply is essential, and the water tank ensures that the coffee machine can operate continuously without frequent water refills. Attached Figure Description
[0016] Figure 1 A 3D diagram of a coffee machine;
[0017] Figure 2 A first perspective view of the boiler, brewing components, valve body components, and foaming components;
[0018] Figure 3 A second perspective view of the boiler, brewing components, valve body components, and foaming components;
[0019] Figure 4 This is a third perspective view of the boiler, brewing components, valve body components, and foaming components.
[0020] Figure 5 This is a first perspective view of the foaming component;
[0021] Figure 6 This is a second perspective view of the foaming component;
[0022] Figure 7 This is a first cross-sectional view of the foaming component;
[0023] Figure 8 This is a second cross-sectional view of the foaming component;
[0024] Figure 9This is a third-dimensional view of the foaming component;
[0025] Figure 10 This is a third cross-sectional view of the foaming component;
[0026] Figure 11 This is an exploded view of the foaming component;
[0027] Figure 12 This is the fourth cross-sectional view of the foaming component.
[0028] The correspondence between the reference numerals and the component names is as follows:
[0029] 1. Shell;
[0030] 2 boilers, 201 boiler outlet;
[0031] 3 brewing components, 301 brewing air inlet, 302 brewing air outlet;
[0032] 4 Valve body assembly, 41 First valve body, 42 Second valve body, 401 First air inlet, 402 First air outlet, 403 Second air inlet, 404 Second air outlet, 405 Drain outlet;
[0033] 5. Foaming component, 51. Connecting pipe fitting, 511. Connecting block, 512. Main pipe fitting, 5121. Pressurizing component, 5122. Transition pipe fitting, 513. Mixing foaming component, 52. Storage component, 521. Storage box, 522. Discharge pipe, 53. Foaming pipe fitting, 54. Air inlet valve, 501. Foaming air inlet channel, 502. Pressurizing channel, 503. Feeding chamber, 504. Mixing foaming chamber, 505. Foaming channel, 506. Storage chamber;
[0034] 6. Drainage components;
[0035] 7. Water tank. Detailed Implementation
[0036] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0037] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0038] The following describes some embodiments of the coffee machine with a milk foam structure according to the present invention, with reference to the accompanying drawings.
[0039] Example
[0040] like Figures 1 to 12 As shown, this embodiment discloses a coffee machine with a milk foaming structure, including: a housing 1; a boiler 2, which is disposed on the housing 1 and has a boiler outlet 201; a brewing assembly 3, which is disposed on the housing 1 and has a brewing air inlet 301 and a brewing air outlet 302, the brewing air inlet 301 being connected to the boiler outlet 201; a valve body assembly 4, which is disposed on the housing 1 and has a first air inlet 401 and a second air outlet 404, the first air inlet 401 being connected to the brewing air outlet 302; and a foaming assembly 5, which is disposed on the housing 1 and has a foaming air inlet channel 501 and a foaming channel 505, the second air outlet 404, the foaming air inlet channel 501, and the foaming channel 505 being sequentially connected.
[0041] This application discloses a coffee machine with a milk frothing structure. Through an innovative combination of a single boiler 2 and a valve assembly 4, it achieves high performance while demonstrating outstanding energy-saving advantages. Compared to commonly available dual-boiler coffee machines, this product is equipped with only one boiler 2. Through precise control of the valve assembly 4, steam enters through the first air inlet 401 and exits through the second air outlet 404, flexibly adapting to brewing and frothing needs. This design significantly reduces the overall power consumption, effectively reducing energy consumption while meeting users' diverse needs for making coffee and frothing milk. It aligns with the current trend of energy conservation and environmental protection, saving users operating costs while also reducing carbon emissions. Boiler 2 serves as the core heat source, and the steam it generates is systematically transported to brewing component 3 and foaming component 5 via boiler outlet 201. Brewing component 3 receives steam through brewing inlet 301, and brewing outlet 302 ensures smooth steam flow, maintaining a stable brewing process and imparting a rich flavor and aroma to the coffee. Foaming component 5's foaming inlet channel 501 connects to other components, fully utilizing steam to generate fine and rich milk foam, enhancing the taste of the coffee beverage. Furthermore, all components are integrated into the housing, resulting in a compact structure, minimal space occupation, and a rationally laid-out gas system for easy daily maintenance and cleaning. The overall design balances functionality, practicality, and environmental friendliness, providing users with an efficient, convenient, and high-quality coffee-making experience, significantly enhancing the product's market competitiveness and user satisfaction.
[0042] like Figure 2 , Figure 5 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the foaming component 5 includes a connecting pipe 51, a storage component 52, and a foaming pipe 53. The connecting pipe 51 is disposed on the housing 1, the storage component 52 is disposed on the connecting pipe 51, and the foaming pipe 53 is disposed on the connecting pipe 51. The connecting pipe 51 is provided with a foaming air inlet channel 501, and the foaming pipe 53 is provided with a foaming channel 505. By securely mounting the connecting pipe 51 on the housing 1, its internal foaming air inlet channel 501 can smoothly communicate with components such as the boiler outlet 201, ensuring stable and efficient steam input. This stable steam transmission lays a solid foundation for the subsequent foaming process. The storage component 52 can be detachably mounted on the connecting pipe 51, a design with multiple advantages. On the one hand, the detachable design allows users to add or replace storage components of different capacities according to their actual needs, flexibly adapting to both making small batches of fine coffee and serving beverages to multiple people simultaneously. On the other hand, it facilitates cleaning and maintenance of the storage components, preventing milk residue from breeding bacteria and ensuring the hygiene and safety of coffee beverages. The foaming tube 53 also features a detachable design. Its internal foaming channel 505 works in conjunction with the connecting tube 51 to convert the input steam into fine, dense milk foam. The detachable foaming tube facilitates timely cleaning after milk foaming, preventing milk residue buildup from affecting the foaming effect and the coffee machine's performance. Furthermore, when the foaming tube is damaged or aged, users can easily disassemble and replace it with a new one, reducing maintenance costs and difficulty, extending the overall lifespan of the coffee machine, and further enhancing the product's practicality and economy.
[0043] like Figure 5 , Figure 7 , Figure 8 and Figure 9As shown, in addition to the features of the above embodiments, this embodiment further defines: the connecting pipe 51 includes a connecting block 511, a main pipe 512, and a mixing and foaming component 513. The connecting block 511 is disposed on the housing 1, the main pipe 512 is disposed on the connecting block 511, the mixing and foaming component 513 is disposed on the main pipe 512, the storage component 52 and the foaming pipe 53 are disposed on the main pipe 512. The main pipe 512 is provided with a pressurizing channel 502 and a feeding chamber 503. The mixing and foaming component 513 is provided with a mixing and foaming chamber 504. The pressurizing channel 502 communicates with the mixing and foaming chamber 504, the feeding chamber 503 communicates with the storage component 52, the feeding chamber 503 communicates with the mixing and foaming chamber 504, and the mixing and foaming chamber 504 communicates with the foaming channel 505. By securely mounting the connecting block 511 on the housing 1, the stability of subsequent component installation is ensured, preventing leakage or instability during steam transmission due to shaking. The main pipe component 512 is mounted on the connecting block 511, and its internal pressurization channel 502 is connected to the mixing and foaming chamber 504 of the mixing and foaming component 513, forming the core path for steam pressurization. When the steam generated by the boiler enters the pressurization channel 502, it undergoes secondary pressurization in the mixing and foaming chamber 504, enabling it to be delivered to the foaming pipe component 53 at a higher pressure and flow rate. This pressurization design allows the steam to mix more thoroughly with the milk, thereby quickly producing fine and dense milk foam, improving the quality and production efficiency of the milk foam. At the same time, the feeding chamber 503 of the main pipe component 512 is connected to the storage component 52 and the mixing and foaming chamber 504, respectively, realizing the rational separation and fusion of steam and milk. On the one hand, the milk in the storage component 52 can be introduced into the feeding chamber 503 via the Venturi principle, and then introduced into the steam transmission path to be fully mixed with the pressurized steam. On the other hand, the mixed milk foam can be smoothly transported to the foaming channel 505 for discharge through the connecting structure between the feeding chamber 503 and the mixing and foaming chamber 504, ensuring a smooth milk foam making process. Furthermore, the storage component 52 and the foaming tube 53 can be detached from the main tube 512. This not only facilitates the user's cleaning of each component and prevents milk residue buildup from affecting performance, but also facilitates timely replacement when components are damaged, reducing maintenance costs and extending the service life of the connecting tubes and even the entire coffee machine.
[0044] like Figures 7 to 10As shown, in addition to the features of the above embodiments, this embodiment further defines: the main pipe component 512 includes a pressure boosting component 5121 and a transition pipe component 5122. The pressure boosting component 5121 is disposed on the connecting block 511, the transition pipe component 5122 is disposed on the pressure boosting component 5121, the mixing and foaming component 513 is disposed on the transition pipe component 5122, the foaming component 53 is disposed on the transition pipe component 5122 and / or the mixing and foaming component 513, and the storage component 52 is disposed on the pressure boosting component 5121 and / or the transition pipe component 5122. The pressure boosting component 5121 is provided with a pressure boosting channel 502, and the transition pipe component 5122 is provided with a feed chamber 503. By directly disposing of the pressure boosting component 5121 on the connecting block 511, its internal pressure boosting channel 502 becomes the first acceleration channel for steam to enter the main pipe component. The steam generated by the boiler is initially pressurized through this channel, laying the foundation for the subsequent formation of high-quality milk foam, effectively improving the initial pressure and flow rate of the steam, and enhancing the efficiency of steam and milk mixing. The transition pipe 5122 is mounted on top of the pressurizing component 5121, and its internal feed chamber 503 plays a crucial role in the milk foam making process. On one hand, it connects to the storage component 52, allowing the milk to flow smoothly from the feed chamber 503 into the steam transmission path; on the other hand, it connects to the mixing and foaming chamber 504 of the mixing and foaming component 513, ensuring that the initially mixed milk and steam are further pressurized and fully integrated in the mixing and foaming chamber 504, ultimately forming a fine and dense milk foam. The integrated design of the pressurizing component 5121 and the transition pipe 5122 not only significantly enhances the structural strength and stability of the main component 512, reduces the risk of steam leakage that may be caused by component splicing, and ensures the efficiency and sealing of steam transmission, but also simplifies the manufacturing process and reduces production difficulty and cost. Meanwhile, the foaming tube 53 can be flexibly installed on the transition tube 5122 and / or the mixing foaming component 513, and the storage component 52 can be installed on the pressurizing component 5121 and / or the transition tube 5122. This versatile disassembly and assembly design makes it convenient for users to adjust the component combination according to actual needs, and also facilitates targeted cleaning and maintenance of each component, greatly improving the user's convenience and the durability of the coffee machine.
[0045] like Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that the cross-sectional area of the pressurizing channel 502 near the feeding chamber 503 is smaller than the cross-sectional area of the pressurizing channel 502 away from the feeding chamber 503. By utilizing the design that the cross-sectional area of the pressurizing channel 502 near the feeding chamber 503 is smaller than the cross-sectional area away from the feeding chamber 503, from a fluid dynamics perspective, when steam flows from the end with the larger cross-sectional area to the end with the smaller cross-sectional area, according to the continuity equation, the steam flow rate through each cross-section of the channel remains constant per unit time, and the steam velocity will be significantly increased. This increase in velocity allows the steam to obtain higher kinetic energy before entering the feeding chamber 503, enabling it to mix with the milk more quickly and powerfully. When the steam passes through the gradually narrowing channel, the pressure will increase accordingly. This pressurization effect provides a good foundation for the subsequent secondary pressurization in the mixing and foaming chamber 504, further ensuring that the steam can participate in milk foam making at a suitable pressure and state, ensuring the stability and consistency of the milk foam, and meeting the user's needs for different milk foam textures.
[0046] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the cross-sectional area of the mixing and foaming chamber 504 near the feeding chamber 503 is smaller than the cross-sectional area of the mixing and foaming chamber 504 away from the feeding chamber 503. By adopting this cross-sectional area variation design of the mixing and foaming chamber 504, a secondary increase in steam pressure can be achieved. As the steam flows through the gradually narrowing channel, the pressure continuously accumulates, eventually entering the feeding chamber 503 under high pressure. This not only ensures that the steam can fully disperse and emulsify the milk, but also allows the mixed milk foam to tightly aggregate under high pressure, avoiding problems such as collapse and defoaming due to insufficient pressure during the output process. This ensures that the milk foam can be discharged from the foaming channel 505 in a full and firm state, enhancing the visual and taste experience of the coffee beverage.
[0047] like Figure 5 , Figure 8 and Figure 12As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the storage component 52 includes a storage box 521 and a discharge pipe 522. The storage box 521 is disposed on the connecting pipe 51 and has a storage cavity 506. One end of the discharge pipe 522 is detachably attached to the connecting pipe 51 and extends toward the storage cavity 506. The storage cavity 506 is connected to the foaming channel 505 through the discharge pipe 522. By detachably attaching the storage box 521 to the connecting pipe 51, this detachable structure provides users with great flexibility: on the one hand, users can freely choose storage boxes of different capacities according to their actual needs, easily meeting the needs of storing a small amount of milk when making a single cup of coffee or the large capacity required for preparing drinks for a group of people; on the other hand, it is convenient for users to disassemble and clean it in time after use, avoiding the growth of bacteria from milk residue and effectively ensuring the hygiene and safety of coffee drinks. The storage chamber 506 inside the storage box 521 provides ample storage space for the milk. Its well-organized space design ensures that the milk can be stored in a relatively stable environment, reducing the risk of spillage or spoilage due to shaking, collisions, or other factors. One end of the discharge pipe 522 is detachable from the connecting pipe 51 and extends towards the storage chamber 506. This ingenious design achieves directional milk delivery. Utilizing the Venturi principle, the milk in the storage chamber 506 flows smoothly along the discharge pipe 522 into the inlet chamber 503 and enters the foaming channel 505 with the airflow, where it mixes thoroughly with steam to form milk foam. The detachable design makes the discharge pipe 522 easy to clean after use, preventing milk residue buildup from affecting milk delivery efficiency and quality.
[0048] like Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that the foaming assembly 5 also includes an air inlet valve 54, which is disposed on the connecting pipe 51. The air inlet valve 54 is used to adjust the air flow rate of the connecting pipe 51 and adjust the foaming effect. By installing the air inlet valve 54 on the connecting pipe 51 and precisely adjusting the air flow rate of the connecting pipe 51, the output intensity of steam and the milk foam making effect are directly affected. In actual use, different types of coffee drinks have different requirements for the texture of milk foam. For example, when making cappuccino, a fine, dense milk foam with a certain thickness is required. At this time, the air flow rate can be appropriately reduced by the air inlet valve 54, so that the steam enters the foaming channel 505 at a relatively stable flow rate and slowly and fully blends with the milk to form a uniform and fine milk foam. When making latte, a lighter and smoother milk foam is required. At this time, the air flow rate of the air inlet valve 54 can be increased, so that the steam quickly impacts the milk to produce a more fluffy milk foam. This flexible airflow adjustment meets diverse coffee-making needs, allowing users to easily create high-quality coffee that suits different taste preferences. Furthermore, the air intake valve 54 effectively addresses steam pressure fluctuations under varying usage scenarios. When the coffee machine operates continuously for extended periods, the steam pressure generated by the boiler may change; the air intake valve 54 can promptly adjust the airflow to maintain stable steam output and ensure consistent milk froth quality.
[0049] like Figure 2 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the valve body assembly 4 includes a first valve body 41 and a second valve body 42, both of which are disposed on the housing 1. The first valve body 41 is provided with a first air inlet 401 and a first air outlet 402, and the second valve body 42 is provided with a second air inlet 403 and a second air outlet 404, with the first air outlet 402 communicating with the second air inlet 403. By providing the first valve body 41 and the second valve body 42, precise control of the steam flow direction and flow rate is achieved. At different working stages, the corresponding valve body is opened or closed as needed, ensuring smooth operation of the machine during preheating, draining residual water from the pipes, and milk frothing, thus improving the quality and efficiency of coffee making and ensuring the stable operation of the entire coffee machine system. Furthermore, this precise control can be flexibly adjusted according to different coffee making needs, providing users with a diverse selection of coffee beverages.
[0050] like Figure 1 and Figure 4As shown, in addition to the features of the above embodiments, this embodiment further includes a drain component 6, which is disposed on the housing 1. The valve body assembly 4 has a drain port 405, and the drain component 6 is connected to the drain port 405. By connecting the drain port 405 of the valve body assembly 4 to the drain component 6, the condensate inside the coffee machine is drained. When the specialty coffee function is activated, the first valve body 41 is opened, while the second valve body 42 is closed. At this time, steam enters the first air inlet 401 from the boiler 2 through the boiler outlet 201. Since the second valve body 42 is closed, the steam can only be discharged through the drain port 405. The purpose of this design is to use the pressure of steam to drain the water remaining in the pipes. Because after the machine has been stopped for a period of time, some condensate may remain in the pipes. If this water is not drained, it will affect the quality of subsequent coffee and milk foam making. In this way, the cleanliness and dryness of the pipes can be ensured, preparing for the making of high-quality coffee drinks.
[0051] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further includes a water tank 7, which is mounted on the housing 1 and has a water outlet connected to the boiler 2. By mounting the water tank 7 on the housing 1, a continuous and stable water source is provided for the coffee machine's operation. The water tank 7 stores a certain amount of water, which flows out from the water tank outlet and enters the boiler 2 for heating when the coffee machine is started, meeting the demand for hot water or steam when making coffee. Whether making espresso or creating milk foam with steam, a sufficient water supply is essential. The water tank ensures that the coffee machine can operate continuously without frequent refills.
[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the 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 all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A coffee machine with a milk foaming structure, characterized in that, The coffee machine with a milk foaming structure includes: Shell (1); Boiler (2), the boiler (2) is mounted on the shell (1), and the boiler (2) is provided with a boiler air outlet (201); A brewing component (3) is disposed on the housing (1). The brewing component (3) is provided with a brewing air inlet (301) and a brewing air outlet (302). The brewing air inlet (301) is connected to the boiler air outlet (201). Valve body assembly (4), the valve body assembly (4) is disposed on the housing (1), the valve body assembly (4) is provided with a first air inlet (401) and a second air outlet (404), the first air inlet (401) is connected to the brewing air outlet (302); A foaming component (5) is disposed on the housing (1). The foaming component (5) is provided with a foaming air inlet channel (501) and a foaming channel (505). The second air outlet (404), the foaming air inlet channel (501) and the foaming channel (505) are connected in sequence.
2. The coffee machine with a milk foaming structure according to claim 1, characterized in that, The foaming component (5) includes a connecting pipe (51), a storage component (52), and a foaming component (53). The connecting pipe (51) is disposed on the housing (1), the storage component (52) is disposed on the connecting pipe (51), and the foaming component (53) is disposed on the connecting pipe (51). The connecting pipe (51) is provided with a foaming air inlet channel (501), and the foaming component (53) is provided with a foaming channel (505).
3. The coffee machine with a milk foaming structure according to claim 2, characterized in that, The connecting fitting (51) includes a connecting block (511), a main fitting (512), and a mixed foaming component (513). The connecting block (511) is disposed on the housing (1), the main fitting (512) is disposed on the connecting block (511), the mixed foaming component (513) is disposed on the main fitting (512), the storage component (52) and the foaming fitting (53) are disposed on the main fitting (512), and the main fitting... The component (512) is provided with a pressurizing channel (502) and a feeding chamber (503). The mixing foaming component (513) is provided with a mixing foaming chamber (504). The pressurizing channel (502) is connected to the mixing foaming chamber (504). The feeding chamber (503) is connected to the storage component (52). The feeding chamber (503) is connected to the mixing foaming chamber (504). The mixing foaming chamber (504) is connected to the foaming channel (505).
4. The coffee machine with a milk foaming structure according to claim 3, characterized in that, The main component (512) includes a pressure booster (5121) and a transition pipe (5122). The pressure booster (5121) is disposed on the connecting block (511), the transition pipe (5122) is disposed on the pressure booster (5121), the mixing foaming component (513) is disposed on the transition pipe (5122), the foaming pipe (53) is disposed on the transition pipe (5122) and / or the mixing foaming component (513), and the storage component (52) is disposed on the pressure booster (5121) and / or the transition pipe (5122). The pressure booster (5121) is provided with the pressure boosting channel (502), and the transition pipe (5122) is provided with the feed chamber (503).
5. The coffee machine with a milk foaming structure according to claim 3, characterized in that, The cross-sectional area of the pressurizing channel (502) near the feed chamber (503) is smaller than the cross-sectional area of the pressurizing channel (502) away from the feed chamber (503); And / or the cross-sectional area of the mixing foaming cavity (504) near the feed cavity (503) is smaller than the cross-sectional area of the mixing foaming cavity (504) away from the feed cavity (503).
6. The coffee machine with a milk foaming structure according to claim 2, characterized in that, The storage component (52) includes a storage box (521) and a discharge pipe (522). The storage box (521) is disposed on the connecting pipe (51). The storage box (521) has a storage cavity (506). One end of the discharge pipe (522) is detachably disposed on the connecting pipe (51) and extends toward the storage cavity (506). The storage cavity (506) is connected to the foaming channel (505) through the discharge pipe (522).
7. The coffee machine with a milk foaming structure according to claim 2, characterized in that, The foaming component (5) also includes an air inlet valve (54), which is disposed on the connecting pipe (51). The air inlet valve (54) is used to adjust the air flow of the connecting pipe (51) and adjust the foaming effect.
8. The coffee machine with a milk foaming structure according to claim 1, characterized in that, The valve body assembly (4) includes a first valve body (41) and a second valve body (42). The first valve body (41) and the second valve body (42) are both disposed on the housing (1). The first valve body (41) is provided with a first air inlet (401) and a first air outlet (402). The second valve body (42) is provided with a second air inlet (403) and a second air outlet (404). The first air outlet (402) is connected to the second air inlet (403).
9. The coffee machine with a milk foaming structure according to claim 1, characterized in that, It also includes a drain component (6), which is disposed on the housing (1), and the valve body assembly (4) is provided with a drain port (405), and the drain component (6) is connected to the drain port (405).
10. The coffee machine with a milk foaming structure according to claim 1, characterized in that, It also includes a water tank (7), which is disposed on the shell (1). The water tank (7) is provided with a water tank outlet, which is connected to the boiler (2).