Ducted turbofan frothing mechanism and milk frother equipment

The ducted turbine fan foaming mechanism uses high-pressure, high-speed airflow to cut air bubbles and form micro-foam, which solves the problem of milk foam and milk liquid separation, and achieves full mixing of milk liquid and air, thus improving the taste of the beverage.

CN223541815UActive Publication Date: 2025-11-14HUIZHOU GUANGYI KITCHEN INTELLIGENT PRODUCTS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422801401.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-11-14
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Existing handheld milk frothers are prone to causing milk foam and milk liquid to separate during the milk frothing process, which affects the taste of the beverage.

Method used

The system employs a ducted turbofan foaming mechanism, which drives the ducted turbofan components to rotate via a power unit. It utilizes a bubble cutting component and fan blades to generate high-pressure, high-speed airflow, cutting bubbles and carrying them into the milk. Combined with a bubble cutting filter, it forms tiny bubbles, achieving thorough mixing of milk and air.

Benefits of technology

It effectively avoids the separation of milk foam and milk liquid, and achieves full integration of milk liquid and air, producing rich milk or coffee drinks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a ducted turbofan foaming mechanism and milk frother equipment. The ducted turbofan foaming mechanism comprises a power assembly, a transmission connecting rod, a ducted turbofan part and a bubble cutting assembly. The power assembly provides power and drives the duct turbofan part to rotate through the transmission connecting rod. A gas circulation cavity and a plurality of fan blades are arranged in the duct turbofan part, external air can be sucked in, accelerated rotation is achieved, high-pressure and high-speed airflow is generated, bubbles are cut out and brought into water, and the foaming effect is achieved; the bubble cutting assembly is arranged at the bottom of the duct turbofan part and used for further cutting bubbles to form tiny foam, and milk foam and liquid are prevented from being layered. The duct shell is provided with the protruding part, so that the air suction efficiency is improved; according to the milk frother equipment, the ducted turbofan frothing mechanism is utilized, milk and air can be fully mixed, and a strong milk beverage or a coffee beverage is obtained.
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Description

Technical Field

[0001] This disclosure relates to the field of milk and coffee making technology, and in particular to a ducted turbine fan frother and milk frother device. Background Technology

[0002] Currently, with the continuous improvement of living standards, people have increasingly higher requirements for food preparation. In making coffee lattes, creating milk foam has become a crucial step in the process, and different methods of milk foam creation affect the flavor of the coffee. Therefore, some manufacturers have developed milk frothing machines specifically for this purpose.

[0003] For example, Chinese patent document CN217488387U discloses a handheld milk frother. The handheld milk frother includes a handheld shell, an output component inside the handheld shell, a connecting component connected to one end of the output component, and a frothing component connected to the other end of the connecting component. The output component includes a motor, which is installed through the handheld shell. An output shaft is connected to the end of the motor away from the handheld shell. The connecting component includes a connecting sleeve, which is installed around the outer periphery of the output shaft. A frothing rod is also installed inside the connecting sleeve. The frothing rod is in contact with the output shaft. The connection between the flat groove on the frothing rod and the connecting sleeve is achieved through a fit, thereby preventing the reaction force of the liquid during the frothing process from causing the frothing rod to come loose.

[0004] However, the design of the aforementioned handheld milk frother has the following problems:

[0005] The aforementioned handheld milk frother uses the flat groove on the frothing rod and the connecting sleeve to prevent the frothing rod from coming loose due to the reaction force of the liquid during the frothing process. However, the rotating head of the frothing component is made of a spring mesh, which can easily cause milk foam to separate when frothing milk into layers. This prevents the milk foam and milk from blending together properly during the frothing process, thus affecting the taste of the beverage. Utility Model Content

[0006] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a ducted turbine fan foaming mechanism and milk frother that fully integrates milk foam with milk liquid.

[0007] The purpose of this disclosure is achieved through the following technical solution:

[0008] A ducted turbofan foaming mechanism includes a power component and a transmission connecting rod, wherein the power output end of the power component is connected to the transmission connecting rod.

[0009] The ducted turbofan foaming mechanism further includes a ducted turbofan component and a bubble cutting assembly. The ducted turbofan component is installed on the transmission connecting rod, and the bubble cutting assembly is located at the bottom of the ducted turbofan component. The ducted turbofan component has a gas flow cavity, and a plurality of fan blades are arranged in the gas flow cavity. The plurality of fan blades are connected to the inner peripheral wall of the ducted turbofan component. The bubble cutting assembly has filter holes, and the filter holes are connected to the gas flow cavity.

[0010] In one embodiment, the ducted turbofan component further includes a duct housing and a connecting column, with one end of the fan blade connected to the inner peripheral wall of the duct housing and the other end of the fan blade connected to the outer peripheral wall of the connecting column.

[0011] In one embodiment, the connecting column has a threaded connection cavity, one end of the transmission connecting rod is threaded to the threaded connection cavity, and the other end of the transmission connecting rod is rotatably connected to the power output end of the power assembly.

[0012] In one embodiment, the ducted turbofan component is a one-piece molded structure.

[0013] In one embodiment, each of the fan blades is provided with a flow-guiding arc surface that is inclined downward along the position of the bubble cutting assembly.

[0014] In one embodiment, the duct housing has a protrusion at one end near the power component, the protrusion being arranged around the outer ring of the duct housing, and the protrusion having an arc-shaped flared mouth.

[0015] In one embodiment, the bubble cutting assembly includes a bubble cutting filter screen disposed at the bottom of the ducted turbofan component, the filter holes being formed in the bubble cutting filter screen and communicating with the gas flow chamber.

[0016] In one embodiment, the periphery of the bubble cutting filter protrudes downward along the center of the bubble cutting filter, and a conical protrusion is provided at the center of the bubble cutting filter, the conical protrusion being connected to the gas flow cavity.

[0017] In one embodiment, the bubble cutting assembly further includes a cutting mesh cover connected to the duct housing, wherein the bubble cutting filter is embedded in the inner peripheral wall of the cutting mesh cover.

[0018] A milk frother device includes the ducted turbofan frother mechanism described in any of the above embodiments.

[0019] Compared with the prior art, this disclosure has at least the following advantages:

[0020] Because the power output end of the power component is connected to the transmission connecting rod, and the ducted turbofan is installed on the transmission connecting rod, the ducted turbofan rotates when the power component provides power. Furthermore, because the bubble cutting component is located at the bottom of the ducted turbofan and has filter holes, and the ducted turbofan has a gas flow chamber and fan blades, when the ducted turbofan rotates, it draws in outside air into the gas flow chamber and accelerates the rotation through the fan blades, generating a high-pressure, high-speed airflow. This airflow cuts out bubbles and continuously carries them into the milk, which then flows into the cup through the filter holes of the bubble cutting component, achieving a frothing effect. This allows the protein in the milk to mix thoroughly with the air. The air enters the ducted turbofan in the air guide chamber, and through the vortex effect of the fan blades, the milk is drawn into the bubble cutting component. Large milk bubbles are cut by the bubble cutting component, forming many tiny bubbles, preventing the milk foam from separating from the milk liquid. This better integrates the milk foam and milk, resulting in a rich milk or coffee beverage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of a ducted turbofan foaming mechanism according to an embodiment of the present disclosure;

[0023] Figure 2 This is a schematic diagram of the structure of a ducted turbofan foaming mechanism according to an embodiment of the present disclosure;

[0024] Figure 3 This is an exploded view of a ducted turbofan foaming mechanism according to an embodiment of the present disclosure.

[0025] Reference numerals: 10, ducted turbofan bubble-making mechanism; 100, power component; 200, transmission connecting rod; 300, ducted turbofan component; 310, gas flow cavity; 320, fan blade; 3210, flow-guiding arc surface; 330, duct shell; 3310, protrusion; 340, connecting column; 3410, threaded connection cavity; 400, bubble cutting assembly; 410, bubble cutting filter screen; 4110, conical protrusion; 420, cutting screen cover. Detailed Implementation

[0026] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0030] like Figure 1 As shown, a ducted turbofan foaming mechanism 10 of one embodiment includes a power component 100 and a transmission connecting rod 200, wherein the power output end of the power component 100 is connected to the transmission connecting rod 200.

[0031] The ducted turbofan foaming mechanism 10 further includes a ducted turbofan component 300 and a bubble cutting assembly 400. The ducted turbofan component 300 is installed on the transmission connecting rod 200, and the bubble cutting assembly 400 is disposed at the bottom of the ducted turbofan component 300. The ducted turbofan component 300 has a gas flow cavity 310, and a plurality of fan blades 320 are disposed in the gas flow cavity 310. The plurality of fan blades 320 are connected to the inner peripheral wall of the ducted turbofan component 300. The bubble cutting assembly 400 has filter holes, and the filter holes are connected to the gas flow cavity 310.

[0032] It is understandable that, because the power output end of the power assembly 100 is connected to the transmission connecting rod 200, and the ducted turbofan component 300 is mounted on the transmission connecting rod 200, when the power assembly 100 provides power, it drives the ducted turbofan component 300 to rotate; and because the bubble cutting component 400 is located at the bottom of the ducted turbofan component 300 and has filter holes, while the ducted turbofan component 300 has a gas flow chamber 310 and fan blades 320 are installed inside, when the ducted turbofan component 300 rotates, it can draw outside air into the gas flow chamber 310 and accelerate its rotation through the fan blades 320, thereby... High-pressure, high-speed airflow is generated, which cuts out bubbles and continuously carries them into the milk. The bubbles then flow into the cup through the filter holes of the bubble cutting component 400, achieving a foaming effect. This allows the protein in the milk to mix thoroughly with the air. The air then enters the ducted turbine component 300 through the air guide cavity, and through the vortex effect of the fan blades 320, it draws the milk into the bubble cutting component 400. Large milk bubbles are cut by the bubble cutting component 400, forming many tiny bubbles. This prevents the milk foam from separating from the milk liquid, thus better blending the milk foam and milk to obtain a rich milk or coffee drink.

[0033] like Figure 1 As shown, in one embodiment, the ducted turbofan component 300 further includes a duct housing 330 and a connecting column 340, one end of the fan blade 320 is connected to the inner peripheral wall of the duct housing 330, and the other end of the fan blade 320 is connected to the outer peripheral wall of the connecting column 340. It is understandable that the duct housing 330, as the main airflow channel, ensures that air can smoothly stimulate the gas flow chamber 310 during rotation, and accelerate rotation under the stirring of the fan blades 320, forming a high-pressure, high-speed airflow, thereby causing the milk liquid to produce milk foam; in addition, the connecting column 340 plays the role of supporting the fan blades 320 and connecting the transmission connecting rod 200. It is located at the center of the duct housing 330, and the fan blades 320 are distributed around the outer wall of the connecting column 340, forming a complete rotation system, which allows air to flow at high speed in the inner cavity of the duct housing 330, enhancing the power and working efficiency of the ducted turbofan component 300, improving the aerodynamic performance of the ducted turbofan foaming mechanism 10, thereby enabling the fan blades 320 to produce milk foam in the inner cavity of the duct housing 330.

[0034] like Figure 1As shown, in one embodiment, the connecting column 340 has a threaded connecting cavity 3410, one end of the transmission connecting rod 200 is threaded to the threaded connecting cavity 3410, and the other end of the transmission connecting rod 200 is rotatably connected to the rotating shaft of the power assembly 100. It is understood that a threaded connection cavity 3410 is provided in the connecting column 340, and one end of the transmission connection is threaded into the threaded connection cavity 3410, so that the transmission connecting rod 200 is threadedly connected to the ducted turbofan component 300, and the other end of the transmission connecting rod 200 is rotatably connected to the shaft of the power assembly 100. When the shaft of the power assembly 100 rotates, the transmission connecting rod 200, due to its connection with the threaded connection cavity 3410, drives the ducted turbofan component 300 to rotate. This threaded connection ensures a stable connection between the power assembly 100 and the ducted turbofan component 300, facilitating installation, disassembly, maintenance, and replacement of the ducted turbofan component 300, and effectively transmitting the torque output by the power assembly 100, reducing energy loss. Furthermore, an appropriate amount of thread-locking agent can be applied between the threaded connection cavity 3410 and the transmission connecting rod 200 to prevent loosening due to vibration during long-term use.

[0035] Combination Figure 1 and Figure 2 As shown, the ducted turbofan component 300 is further described as a one-piece molded structure. It can be understood that because the ducted turbofan component 300 is a one-piece molded structure, this indicates that the duct housing 330, connecting column 340, and fan blade 320 are molded as a single unit during manufacturing, rather than being assembled from multiple parts. This eliminates assembly gaps between components, thereby reducing noise and vibration caused by loose or worn components, and improving the overall stability and durability of the equipment.

[0036] Combination Figure 1 and Figure 2 As shown, in one embodiment, each fan blade 320 is provided with a guiding arc surface 3210, which is inclined downward along the position of the bubble cutting assembly 400. It can be understood that the presence of a guiding arc surface 3210 on each fan blade 320, and the downward inclination of the guiding arc surface 3210 along the position of the bubble cutting assembly 400, means that when the ducted turbofan 300 rotates, the fan blade 320 not only adds and compresses air through its rotational motion, but the guiding arc surface 3210 also guides the accelerated airflow to flow more smoothly towards the bubble cutting assembly 400; specifically, the design of the guiding arc surface 3210 helps reduce the resistance of airflow when flowing between the fan blade 320 and the bubble cutting assembly 400.

[0037] Combination Figure 1 and Figure 2As shown, in one embodiment, a protrusion 3310 is provided at one end of the duct housing 330 near the power component 100. The protrusion 3310 is arranged around the outer ring of the duct housing 330 and has an arc-shaped horn mouth. It can be understood that by surrounding the duct housing 330 with the protrusion 3310, the airflow can be effectively guided to the gas flow chamber 310 of the ducted turbofan 300 when it is working. When the power component 100 drives the ducted turbofan 300 to rotate, air is drawn into the arc-shaped inlet of the protrusion 3310. Due to the horn mouth design, the air velocity increases and the pressure decreases, thereby enhancing the intake efficiency of the ducted turbofan 300. This not only improves the working efficiency of the ducted turbofan foaming mechanism 10 but also makes the mixing of air and milk more uniform, which is beneficial for producing fine and long-lasting milk foam.

[0038] like Figure 3 As shown, in one embodiment, the bubble cutting assembly 400 includes a bubble cutting filter 410, which is disposed at the bottom of the ducted turbine component 300. Filter holes are formed in the bubble cutting filter 410 and are connected to the gas flow chamber 310. It can be understood that by placing the bubble cutting filter 410 at the bottom of the ducted turbine component 300, when the ducted turbine component 300 rotates, the generated airflow carries tiny bubbles from the milk and impacts the bubble cutting filter 410, thus filtering the milk and bubbles from the bubble cutting filter 410 into the cup. Furthermore, the bubble cutting filter 410 has several filter holes. When the airflow and bubbles pass through the filter holes, due to the flow-limiting effect of the filter holes, the bubbles are further cut into smaller units, resulting in finer and more uniform milk foam.

[0039] like Figure 1 As shown, further, the periphery of the bubble-cutting filter 410 protrudes downwards along its center, and a conical protrusion 4110 is provided at the center of the bubble-cutting filter 410, which is connected to the gas flow chamber 310. It can be understood that the downward protrusion of the periphery of the bubble-cutting filter 410 along its center helps guide the airflow and bubbles to flow more smoothly towards the center area of ​​the filter. The conical protrusion 4110 at the center of the bubble-cutting filter 410, connected to the gas flow chamber 310, ensures that the airflow and bubbles flowing from the gas flow chamber 310 can directly impact the conical protrusion 4110, thereby cutting the bubbles more effectively.

[0040] like Figure 1As shown, in one embodiment, the bubble cutting assembly 400 further includes a cutting mesh cover 420, which is connected to the duct housing 330. The bubble cutting filter 410 is embedded in the inner peripheral wall of the cutting mesh cover 420. It can be understood that by connecting the cutting mesh cover 420 to the duct housing 330 in a detachable manner, it facilitates future maintenance of the components between the ducted turbofan bubble-forming mechanism 10. The components of the ducted turbofan bubble-forming mechanism 10 can be replaced by disassembly. Simultaneously, embedding the bubble cutting filter 410 in the inner peripheral wall of the cutting mesh cover 420 ensures that the airflow and bubbles flowing out of the gas flow chamber 310 can smoothly pass through the filter.

[0041] This application also provides a milk frother device, including the ducted turbofan frothing mechanism 10 described in any of the above embodiments. It is understood that when the ducted turbofan component 300 rotates, it draws outside air into the gas flow chamber 310 and accelerates its rotation through the fan blades 320, thereby generating a high-pressure, high-speed airflow. This airflow cuts out bubbles and continuously carries them into the water, achieving a frothing effect. This allows the protein in the milk to fully mix with the air, enabling the air to enter the ducted turbofan component 300 through the air guide chamber. Then, through the vortex effect of the fan blades 320, the milk is drawn into the bubble cutting component 400. Large milk bubbles are cut by the bubble cutting component 400, forming many tiny bubbles, preventing the milk foam from separating from the milk liquid, thus better blending the milk foam and milk to obtain a rich milk or coffee beverage.

[0042] Compared with the prior art, this disclosure has at least the following advantages:

[0043] Because the power output end of the power assembly 100 is connected to the transmission connecting rod 200, and the ducted turbofan component 300 is mounted on the transmission connecting rod 200, when the power assembly 100 provides power, it drives the ducted turbofan component 300 to rotate. Furthermore, because the bubble cutting component 400 is located at the bottom of the ducted turbofan component 300 and has filter holes, and the ducted turbofan component 300 has a gas flow chamber 310, and fan blades 320 are installed inside the ducted turbofan component 300, when the ducted turbofan component 300 rotates, it can draw outside air into the gas flow chamber 310 and accelerate it through the fan blades 320, thereby generating high-speed airflow. High-speed airflow cuts out bubbles and continuously carries them into the milk. The bubbles then flow into the cup through the filter holes of the bubble cutting component 400, achieving a foaming effect. This allows the protein in the milk to mix thoroughly with the air. The air then enters the ducted turbine component 300 through the air guide cavity, and through the vortex effect of the fan blades 320, it draws the milk into the bubble cutting component 400. Large milk bubbles are cut by the bubble cutting component 400, forming many tiny bubbles. This prevents the milk foam from separating from the milk liquid, thus better blending the milk foam and milk to create a rich milk or coffee drink.

[0044] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are 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 disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A ducted turbofan foaming mechanism, comprising a power component and a transmission connecting rod, wherein the power output end of the power component is connected to the transmission connecting rod; Its features are, The ducted turbofan foaming mechanism further includes a ducted turbofan component and a bubble cutting assembly. The ducted turbofan component is installed on the transmission connecting rod, and the bubble cutting assembly is located at the bottom of the ducted turbofan component. The ducted turbofan component has a gas flow cavity, and a plurality of fan blades are arranged in the gas flow cavity. The plurality of fan blades are connected to the inner peripheral wall of the ducted turbofan component. The bubble cutting assembly has filter holes, and the filter holes are connected to the gas flow cavity.

2. The ducted turbofan foaming mechanism according to claim 1, characterized in that, The ducted turbofan component also includes a duct housing and a connecting column. One end of the fan blade is connected to the inner peripheral wall of the duct housing, and the other end of the fan blade is connected to the outer peripheral wall of the connecting column.

3. The ducted turbofan foaming mechanism according to claim 2, characterized in that, The connecting column has a threaded connection cavity, one end of the transmission connecting rod is threaded to the threaded connection cavity, and the other end of the transmission connecting rod is rotatably connected to the power output end of the power assembly.

4. The ducted turbofan foaming mechanism according to claim 3, characterized in that, The ducted turbine fan component is a one-piece molded structure.

5. The ducted turbofan foaming mechanism according to claim 1, characterized in that, Each of the fan blades is provided with a flow-guiding arc surface, which is inclined downward along the position of the bubble cutting assembly.

6. The ducted turbofan foaming mechanism according to claim 2, characterized in that, The duct housing has a protrusion at one end near the power component. The protrusion surrounds the outer ring of the duct housing and is in the shape of an arc-shaped horn.

7. The ducted turbofan foaming mechanism according to claim 6, characterized in that, The bubble cutting assembly includes a bubble cutting filter screen, which is disposed at the bottom of the ducted turbine component. The filter holes are formed in the bubble cutting filter screen and are connected to the gas flow cavity.

8. The ducted turbofan foaming mechanism according to claim 7, characterized in that, The periphery of the bubble cutting filter protrudes downward along the center of the bubble cutting filter, and a conical protrusion is provided at the center of the bubble cutting filter, which is connected to the gas flow cavity.

9. The ducted turbofan foaming mechanism according to claim 8, characterized in that, The bubble cutting assembly also includes a cutting mesh cover, which is connected to the duct housing, and the bubble cutting filter is embedded in the inner peripheral wall of the cutting mesh cover.

10. A milk frother device, characterized in that, Includes the ducted turbofan foaming mechanism as described in any one of claims 1 to 9.

Citation Information

Patent Citations

  • Handheld milk frothing machine

    CN217488387U