Milk foam making device and coffee machine

Abstract

The embodiment of the utility model provides a milk foam making device and a coffee machine, and relates to the field of household appliances. The milk foaming device comprises a milk bottle, a foaming part, a steam connector and an air adjusting connector, the foaming part is arranged on the milk bottle, the foaming part is provided with an air inlet, a steam inlet and a milk inlet which are communicated with one another, the milk inlet is communicated with the milk bottle, the steam connector is arranged at the steam inlet, and the air adjusting connector is rotatably connected with the air inlet. The air conditioning connector is provided with an air inlet channel, the air inlet channel is communicated with the air inlet, and the air conditioning connector is used for adjusting the size of a communication area of the air inlet channel and the air inlet under the rotating condition so as to adjust the air inlet amount of air entering the foaming part. By rotating the air adjusting connector, the size of the communicating area of the air inlet channel and the air inlet is adjusted, and then the air inlet amount of air entering the foaming part is adjusted, so that the purpose of adjusting the thickness and density of milk foam is achieved, and the effect of automatically foaming milk foam is improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and more specifically, to a milk frothing device and a coffee machine. Background Technology

[0002] Currently, with the growing demand for high-quality coffee beverages, automatic milk dispensers on coffee machines are gaining popularity due to their ability to automatically froth milk. In existing technology, automatic milk dispensers typically include a high-temperature steam system that injects high-temperature steam mixed with air into the milk to create foam. This process aims to mimic the hand-frothing method to meet coffee enthusiasts' demands for fineness and consistency in the milk foam.

[0003] Existing coffee machines have a technical problem: they cannot adjust the air intake, which in turn makes it impossible to adjust the density and thickness of the milk foam. Utility Model Content

[0004] This invention provides a milk frothing device and a coffee machine that can automatically adjust the air intake to regulate the density and thickness of the milk foam, resulting in better performance.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] An embodiment of this utility model provides a milk frothing device, which includes:

[0007] Baby bottle;

[0008] The foaming section is disposed on the baby bottle and has an air inlet, a steam inlet and a milk inlet that are interconnected. The milk inlet is connected to the baby bottle.

[0009] A steam connector is provided at the steam inlet;

[0010] An air conditioning connector is provided, which is rotatably connected to the air inlet. The air conditioning connector is provided with an air intake passage, which is connected to the air inlet. The air conditioning connector is used to adjust the size of the connecting area between the air intake passage and the air inlet when rotating, so as to adjust the amount of air entering the foaming section.

[0011] Optionally, the air conditioning connector includes a connector body and a knob. The knob is installed on the connector body, and the air intake duct is disposed on the connector body. The knob is used to drive the connector body to rotate, thereby driving the air intake duct to rotate, so as to adjust the size of the communication area between the air intake duct and the air inlet.

[0012] Optionally, the air intake duct includes a first air intake duct and a second air intake duct that are connected to each other. The first air intake duct is arranged in a vertical direction, and the second air intake duct is arranged in a circumferential direction. The second air intake duct has a variable cross-section arc structure. The second air intake duct is used so that the cross-sectional area of ​​the second air intake duct and the air intake port are different when rotating, thereby changing the size of the area connected by the second air intake duct and the air intake port.

[0013] Optionally, the foaming section includes a foaming cavity and a sealing sleeve that are interconnected. The air inlet, steam inlet and milk inlet are all located in the foaming cavity. The sealing sleeve is located in the air inlet. The connector body is fitted inside the sealing sleeve.

[0014] Optionally, the inner wall of the sealing sleeve is provided with a through hole, which communicates with both the air intake channel and the air inlet.

[0015] Optionally, the foaming cavity further includes an air inlet pipe, which is disposed at the air inlet, and the sealing sleeve is fitted onto the inner wall of the air inlet pipe.

[0016] Optionally, the intake pipe is provided with a groove, and the outer wall of the sealing sleeve is provided with a buckle, the buckle and the groove cooperating to connect the sealing sleeve and the intake pipe; or,

[0017] The air intake pipe is provided with a buckle, and the sealing sleeve is provided with a groove. The buckle and the groove cooperate to connect the sealing sleeve and the air intake pipe.

[0018] Optionally, the top surface of the sealing sleeve is provided with a stepped surface.

[0019] Optionally, the milk frothing device further includes a milk outlet connector, which is connected to the frothing section.

[0020] An embodiment of this utility model also provides a coffee machine, including a body and a milk frothing device, wherein the milk frothing device is connected to the body.

[0021] The beneficial effects of the milk frothing device and coffee machine of this utility model embodiment include, for example:

[0022] The milk frothing device includes a baby bottle, a foaming section, a steam connector, and an air conditioning connector. The foaming section is disposed on the baby bottle and has an air inlet, a steam inlet, and a milk inlet that are interconnected. The milk inlet is connected to the baby bottle. The steam connector is disposed on the steam inlet. The air conditioning connector is rotatably connected to the air inlet. The air conditioning connector has an air intake channel that is connected to the air inlet. The air conditioning connector is used to adjust the size of the connecting area between the air intake channel and the air inlet when rotated, so as to adjust the amount of air entering the foaming section. In use, the foaming section is located inside the baby bottle. The steam connector is connected to the steam inlet of the foaming section, allowing steam to be introduced into the foaming section. The air intake channel of the air conditioning connector is connected to the air inlet of the foaming section, allowing air to be introduced into the foaming section. The air, high-temperature steam, and milk mix to create foam. During the foaming process, the size of the connecting area between the air intake channel and the air inlet is adjusted by rotating the air conditioning connector, thereby adjusting the amount of air entering the foaming section. This achieves the purpose of adjusting the thickness and density of the milk foam, improving the automatic milk frothing effect, and resulting in better performance.

[0023] This coffee machine includes a main body and a milk frothing device connected to the main body. In use, the frothing section is located inside the milk bottle. A steam connector connects to the steam inlet of the frothing section, allowing steam to be introduced into the frothing section. An air intake duct of an air conditioning connector connects to the air inlet of the frothing section, allowing air to be introduced into the frothing section. The air, high-temperature steam, and milk mix to create foam. During the frothing process, rotating the air conditioning connector adjusts the size of the connection area between the air intake duct and the air inlet, thereby regulating the amount of air entering the frothing section. This adjusts the thickness and density of the milk foam, improving the automatic milk frothing effect and resulting in better performance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a first-view structural schematic diagram of the milk frothing device provided in this embodiment;

[0026] Figure 2 This is a second-view structural schematic diagram of the milk frothing device provided in this embodiment;

[0027] Figure 3This is a third-view structural diagram of the milk frothing device provided in this embodiment;

[0028] Figure 4 This is a fourth-view structural diagram of the milk frothing device provided in this embodiment;

[0029] Figure 5 This is a fifth-view structural diagram of the milk frothing device provided in this embodiment;

[0030] Figure 6 This is a sixth-angle structural diagram of the milk frothing device provided in this embodiment;

[0031] Figure 7 This is a structural schematic diagram of the milk frothing device provided in this embodiment from a seventh perspective;

[0032] Figure 8 This is a schematic diagram of the milk frothing device provided in this embodiment from an eighth-angle perspective.

[0033] Icons: 10-Baby bottle; 20-Foaming section; 21-Foaming chamber; 22-Sealing sleeve; 221-Through hole; 222-Snap fastener; 223-Stepped surface; 23-Air inlet pipe; 231-Slot; 201-Air inlet; 202-Steam inlet; 203-Milk inlet; 30-Steam connector; 40-Air conditioning connector; 41-Connector body; 42-Knob; 411-Air inlet channel; 401-First air inlet channel; 402-Second air inlet channel; 50-Milk outlet connector; 60-Milk straw; 101-Top cover; 102-Lower shell. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0040] Currently, with the growing demand for high-quality coffee beverages, automatic milk dispensers on coffee machines are gaining popularity due to their ability to automatically froth milk. In existing technology, automatic milk dispensers typically include a high-temperature steam system that injects high-temperature steam mixed with air into the milk to create foam. This process aims to mimic the hand-frothing method to meet coffee enthusiasts' demands for fineness and consistency in the milk foam.

[0041] Coffee machines in the relevant technology have a technical problem: they cannot adjust the air intake, thus making it impossible to adjust the density and thickness of the milk foam.

[0042] Please refer to Figures 1-8 This embodiment provides a milk frothing device and a coffee machine, which can effectively improve the technical problems mentioned above. It can automatically adjust the air intake volume, thereby adjusting the density and thickness of the milk foam, resulting in better performance.

[0043] The coffee machine includes a body and a milk frothing device, which is connected to the body. The body includes an upper cover 101 and a lower shell 102, which are detachably connected.

[0044] Please refer to Figures 1-8The milk frothing device includes a baby bottle 10, a foaming section 20, a steam connector 30, and an air conditioning connector 40. The foaming section 20 is disposed on the baby bottle 10 and has interconnected air inlet 201, steam inlet 202, and milk inlet 203. The milk inlet 203 is connected to the baby bottle 10. The steam connector 30 is disposed on the steam inlet 202. The air conditioning connector 40 is rotatably connected to the air inlet 201 and has an air intake channel 411 that is connected to the air inlet 201. The air conditioning connector 40 is used to adjust the size of the connecting area between the air intake channel 411 and the air inlet 201 while rotating, so as to adjust the amount of air entering the foaming section 20. The foaming section 20 is installed in the receiving space formed by the upper cover 101 and the lower shell 102, which is located on top of the baby bottle 10.

[0045] Specifically, the air conditioning connector 40 includes a connector body 41 and a knob 42. The knob 42 is mounted on the connector body 41, and an air intake duct 411 is disposed on the connector body 41. The knob 42 is used to drive the connector body 41 to rotate, thereby driving the air intake duct 411 to rotate, so as to adjust the size of the communication area between the air intake duct 411 and the air intake port 201. The knob 42 is located on the top of the connector body 41, outside the upper cover 101, and can rotate relative to the upper cover 101. The connector body 41 is disposed in the receiving space enclosed by the upper cover 101 and the lower shell 102. The outer surface of the knob 42 has multiple protrusions to increase the friction during rotation.

[0046] Furthermore, the surface of the top cover 101 is provided with an air intake volume indicator. Simply rotate the knob 42 to the position of the corresponding air intake volume indicator.

[0047] It should be noted that the air intake duct 411 includes a first air intake duct 401 and a second air intake duct 402 that are connected to each other. The first air intake duct 401 is arranged in a vertical direction, and the second air intake duct 402 is arranged in a circumferential direction. The second air intake duct 402 has a variable cross-section arc structure. The second air intake duct 402 is used so that the cross-sectional area of ​​the second air intake duct 402 and the air intake port 201 are different when rotating, thereby changing the size of the area connected by the second air intake duct 402 and the air intake port 201.

[0048] It should also be noted that one side of the inner wall of the second air intake 402 is an asymmetrical arc-shaped edge, which makes the cross-sectional area of ​​the second air intake 402 different at each angle during rotation. By adjusting the amount of air entering the foaming section 20 through the different cross-sectional areas, the thickness and density of the milk foam after the milk and steam are mixed can be controlled.

[0049] In this embodiment, the foaming section 20 includes a foaming cavity 21 and a sealing sleeve 22 that are interconnected. An air inlet 201, a steam inlet 202, and a milk inlet 203 are all disposed in the foaming cavity 21. The sealing sleeve 22 is disposed in the air inlet 201, and the connector body 41 is sleeved inside the sealing sleeve 22. The inner wall of the sealing sleeve 22 is provided with a through hole 221, which communicates with both the air inlet channel 411 and the air inlet 201.

[0050] Specifically, the foaming cavity 21 also includes an air inlet pipe 23, which is disposed at the air inlet 201, and a sealing sleeve 22 is fitted onto the inner wall of the air inlet pipe 23. The air inlet pipe 23 has a straight cylindrical structure, and a flow channel runs through its inner wall. When the sealing sleeve 22 is assembled inside the air inlet pipe 23, the through hole 221 of the sealing sleeve 22 communicates with the flow channel.

[0051] In this embodiment, the intake pipe 23 is provided with a slot 231, and the outer wall of the sealing sleeve 22 is provided with a buckle 222. The buckle 222 and the slot 231 cooperate to connect the sealing sleeve 22 and the intake pipe 23. The outer wall of the sealing sleeve 22 is provided with two buckles 222, which are arranged opposite to each other. When the sealing sleeve 22 is assembled in the intake pipe 23, the two buckles 222 respectively engage with the slot 231, thereby fixing the sealing sleeve 22 in the intake pipe 23, so that the sealing sleeve 22 is in a non-rotating state.

[0052] In other embodiments, the number of clips 222 can be adjusted according to the actual situation, and no specific limitation is made here.

[0053] In other embodiments, a buckle 222 may be provided on the air intake pipe 23, and a groove 231 may be provided on the sealing sleeve 22. The buckle 222 and the groove 231 cooperate to connect the sealing sleeve 22 and the air intake pipe 23.

[0054] To ensure that air can smoothly enter the sealing sleeve 22, the top surface of the sealing sleeve 22 is provided with a stepped surface 223. There is a flow space between the stepped surface 223 and the air conditioning connector 40, thereby ensuring that air can smoothly enter.

[0055] When the connector body 41 of the air conditioning connector 40 is inserted into the sealing sleeve 22, the second air inlet 402 of the air conditioning connector 40 is connected to the through hole 221 of the sealing sleeve 22. The through hole 221 of the sealing sleeve 22 is connected to the air inlet 201 and the flow channel of the air inlet pipe 23, forming a complete channel. When the air conditioning connector 40 is rotated, the cross-sectional size of the area connecting the second air inlet 402 and the through hole 221 of the sealing sleeve 22 will change accordingly, thereby controlling the amount of air entering the foaming chamber 21, and ultimately controlling the thickness and density of the milk foam.

[0056] Please refer to Figure 6 and Figure 7 , Figure 6 The air conditioning connector 40 is rotated to a state where the milk foam thickness is high. At this time, the cross-section of the connecting area between the second air intake duct 402 and the sealing sleeve 22 is at its minimum, so that the amount of air entering the foaming chamber 21 from the outside is at its minimum. Figure 7 The air conditioning connector 40 is rotated to a state where the milk foam thickness is low. At this time, the cross-section of the connecting area between the second air intake 402 and the sealing sleeve 22 is at its maximum, so that the amount of air entering the foaming chamber 21 from the outside is at its maximum.

[0057] In this embodiment, the sealing sleeve 22 is a silicone sleeve. The silicone sleeve can seal the area outside the air channel, preventing other air from entering and affecting the foaming effect.

[0058] Furthermore, the milk frothing device also includes a milk straw 60 and a milk outlet connector 50, the milk outlet connector 50 being connected to the foaming section 20, and the milk straw 60 being connected to the milk inlet 203 of the foaming section 20 via a silicone sealing sleeve 22.

[0059] Understandably, the milk outlet connector 50 and the foaming chamber 21 are connected and sealed by a sealing ring, and the steam connector 30 and the steam inlet 202 of the foaming chamber 21 are also connected and sealed by a sealing ring.

[0060] During operation, after steam is introduced into the foaming chamber 21 through the steam connector 30, a negative pressure is formed inside the foaming chamber 21. The milk in the bottle 10 is drawn into the foaming chamber 21 through the milk straw 60. Then, the air conditioning connector 40 is rotated to adjust the amount of air entering the foaming chamber 21 to control the thickness of the milk foam.

[0061] In summary, this utility model embodiment provides a milk frothing device and a coffee machine. The milk frothing device includes a milk bottle 10, a frothing section 20, a steam connector 30, and an air conditioning connector 40. The frothing section 20 is disposed on the milk bottle 10 and has an interconnected air inlet 201, a steam inlet 202, and a milk inlet 203. The milk inlet 203 is connected to the milk bottle 10. The steam connector 30 is disposed on the steam inlet 202. The air conditioning connector 40 is rotatably connected to the air inlet 201. The air conditioning connector 40 has an air intake channel 411, which is connected to the air inlet 201. The air conditioning connector 40 is used to adjust the size of the connecting area between the air intake channel 411 and the air inlet 201 when rotating, so as to adjust the amount of air entering the frothing section 20. In use, the foaming section 20 is installed in the baby bottle 10. The steam connector 30 is connected to the steam inlet 202 of the foaming section 20, allowing steam to be introduced into the foaming section 20. The air inlet 411 of the air conditioning connector 40 is connected to the air inlet 201 of the foaming section 20, allowing air to be introduced into the foaming section 20. The air, high-temperature steam, and milk are mixed to create foam. During the foaming process, the size of the connecting area between the air inlet 411 and the air inlet 201 is adjusted by rotating the air conditioning connector 40, thereby adjusting the amount of air entering the foaming section 20. This achieves the purpose of adjusting the thickness and density of the milk foam, improving the automatic milk frothing effect, and resulting in better performance.

[0062] The coffee machine includes a main body and a milk frothing device connected to the main body. In use, the frothing section 20 is located inside the milk bottle 10. The steam connector 30 is connected to the steam inlet 202 of the frothing section 20, allowing steam to be introduced into the frothing section 20. The air intake duct 411 of the air conditioning connector 40 is connected to the air inlet 201 of the frothing section 20, allowing air to be introduced into the frothing section 20. The air, high-temperature steam, and milk mix to create froth. During the frothing process, rotating the air conditioning connector 40 adjusts the size of the connecting area between the air intake duct 411 and the air inlet 201, thereby adjusting the amount of air entering the frothing section 20. This adjusts the thickness and density of the milk foam, improving the automatic milk frothing effect and resulting in better performance.

[0063] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A milk frothing device, characterized in that, The utility model relates to a milk bottle (10) and a foaming part (20) arranged on the milk bottle (10), wherein the foaming part (20) is provided with an air inlet (201), a steam inlet (202) and a milk inlet (203) in communication with each other, the steam inlet (202) is provided with a steam joint (30), the air inlet (201) is rotatably connected with an air adjusting joint (40), the air adjusting joint (40) is provided with an air inlet channel (411) in communication with the air inlet (201), and the air adjusting joint (40) is used for adjusting the size of the communication area between the air inlet channel (411) and the air inlet (201) in the rotating state to adjust the air inlet amount into the foaming part (20). The air adjusting joint (40) comprises a joint body (41) and a knob (42) mounted on the joint body (41), the air inlet channel (411) is arranged on the joint body (41), and the knob (42) is used for rotating the joint body (41) to rotate the air inlet channel (411) to adjust the size of the communication area between the air inlet channel (411) and the air inlet (201). The air inlet channel (411) comprises a first inlet channel (401) arranged in the vertical direction and a second inlet channel (402) arranged in the circumferential direction, the second inlet channel (402) is in the variable cross-section arc structure, and the second inlet channel (402) is used for changing the size of the communication area between the second inlet channel (402) and the air inlet (201) in the rotating state. The foaming part (20) comprises a foaming cavity (21) and a sealing sleeve (22) in communication with each other, the air inlet (201), the steam inlet (202) and the milk inlet (203) are arranged on the foaming cavity (21), the sealing sleeve (22) is arranged on the air inlet (201), and the joint body (41) is sleeved in the sealing sleeve (22). The inner wall of the sealing sleeve (22) is provided with a through hole (221) in communication with the air inlet channel (411) and the air inlet (201).

2. A milk frothing device according to claim 1, characterized in that The foaming cavity (21) further comprises an air inlet pipe (23) arranged on the air inlet (201), and the sealing sleeve (22) is sleeved on the inner wall of the air inlet pipe (23).

3. A milk frothing device according to claim 2, characterised in that ​ 4. A milk frothing device according to claim 2, characterised in that ​ 5. A milk frothing device according to claim 4, characterised in that ​ 6. A milk frothing device according to claim 4, characterised in that ​ 7. A milk frothing device according to claim 6, characterised in that The air inlet pipe (23) is provided with a clamping groove (231), and the outer wall of the sealing sleeve (22) is provided with a buckle (222), the buckle (222) and the clamping groove (231) are matched to connect the sealing sleeve (22) and the air inlet pipe (23); or, The air inlet pipe (23) is provided with a buckle (222), and the sealing sleeve (22) is provided with a clamping groove (231), the buckle (222) and the clamping groove (231) are matched to connect the sealing sleeve (22) and the air inlet pipe (23).

8. A milk frothing device according to claim 4, characterized in that The top surface of the sealing sleeve (22) is provided with a stepped surface (223).

9. The milk frothing device of claim 1, wherein The milk frothing device further comprises a milk outlet joint (50), which communicates with the frothing part (20).

10. A coffee maker characterized in that, The milk frothing device comprises a body and the milk frothing device according to any one of claims 1-9, and the milk frothing device is connected with the body.

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