Combined device of milk foaming machine and coffee machine

Abstract

The combined device of the milk frothing machine and the coffee machine is provided with a coffee machine shell and the milk frothing machine, the coffee machine shell is provided with a steam generator, the milk frothing machine is provided with a connecting pipe and a milk frothing container, the connecting pipe is arranged on the coffee machine shell and extends out of the coffee machine shell, and the milk frothing container is arranged on the connecting pipe. The connecting pipe is communicated with the steam generator, the milk foam making container is provided with a cup body, a first connecting piece and a steam guide pipe arranged in the cup body, the first connecting piece is arranged on the cup body and communicated into the cup body, the upper end of the first connecting piece is connected with the connecting pipe, and the lower end of the first connecting piece is connected with the steam guide pipe. The novel combined device of the milk frothing machine and the coffee machine is characterized in that a connecting pipe is arranged in the cup body, the lower end of the connecting pipe is connected with the upper end of the steam flow guide pipe, and a spray head bent relative to the vertical direction is arranged at the lower end of the steam flow guide pipe. The angle of steam injected into milk does not need to be manually intervened, operation is easy, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of beverage making devices, and more particularly to a combination device of a milk frother and a coffee machine. Background Technology

[0002] Existing coffee-making devices combine coffee extraction and milk frothing functions. They include a milk frother and a steam generator. The milk frother consists of a steam delivery pipe and a nozzle connected to the outside of the coffee machine. The steam generator produces steam and transmits it to the nozzle via the steam delivery pipe. The nozzle then directs the steam into the cup to froth the milk. However, during operation, the user must manually place the nozzle into the cup containing milk, and maintain the nozzle in the cup throughout the process, which can easily lead to burns. Furthermore, the angle between the nozzle and the cup needs to be manually adjusted to ensure the quality of the milk froth. This operation is difficult and requires a high level of experience from the operator. Inexperienced operators are prone to producing coarse and poor-quality milk froth. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a combined device of a milk frother and a coffee machine, comprising a coffee machine housing and a milk frother. The coffee machine housing includes a water tank, a steam generator, and a circuit board. The steam generator is electrically connected to the circuit board, and the water tank is connected to the steam generator. The milk frother includes a connecting pipe and a milk frother container. The connecting pipe is located on the coffee machine housing and extends outside the housing, communicating with the steam generator. The milk frother container includes a cup body, a first connecting member, and a steam guide pipe located within the cup body. The first connecting member is located on the cup body and communicates with the cup body. The upper end of the first connecting member is connected to the connecting pipe, and the lower end of the connecting pipe is connected to the upper end of the steam guide pipe. The lower end of the steam guide pipe has a nozzle that bends relative to the vertical direction, with the nozzle's nozzle positioned below the recommended minimum liquid level of the cup body.

[0004] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the coffee machine housing is provided with an upper body and a lower body, and the milk frother is also provided with an automatic lifting mechanism. The connecting pipe and the automatic lifting mechanism are both provided on the upper body. The connecting pipe is connected to the automatic lifting mechanism. The connecting pipe is provided with a docking part, which protrudes downward from the upper body. The lower body is provided with a cup placement area, which is located below the docking part. The cup is placed in the cup placement area. The docking part is vertically aligned with the upper end of the first connecting member. The automatic lifting mechanism is electrically connected to the circuit board. The automatic lifting mechanism drives the connecting pipe to move up and down, so that the docking part docks with the first connecting member or the docking part disengages upward from the first connecting member.

[0005] As an improvement to the combined milk frother and coffee machine of this utility model, the automatic lifting mechanism includes a first motor, a screw, and a guide rod. A horizontal bar protrudes from the connecting tube in the horizontal direction. The horizontal bar has a guide hole and a threaded hole in the vertical direction. The guide hole is located at the free end of the horizontal bar, and the threaded hole is located between the guide hole and the connecting tube. The guide rod is located in the upper body, and the guide hole is connected to the guide rod and can slide up and down along the guide rod. The first motor is fixed in the upper body and electrically connected to the circuit board. The screw mates with the threaded hole, and one end of the screw is connected to the output shaft of the first motor. The circuit board controls the first motor to drive the screw to rotate, and the horizontal bar drives the connecting tube to move up and down.

[0006] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the cup placement area is grooved, a limiting groove is provided outside the cup placement area, the cup is provided with a handle, when the handle is located in the limiting groove, the docking part is vertically aligned with the upper end of the first connecting member, the lower seat is provided with a boss, the boss is located outside the cup placement area and protrudes upward from the cup placement area, the boss is recessed downward to form the limiting groove, a tactile switch is provided in the limiting groove, the tactile switch is electrically connected to the circuit board, the handle abuts downward against the tactile switch and emits a touch signal, the circuit board determines that the cup is placed in the cup placement area according to the touch signal.

[0007] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the first connecting member is provided with an air guide tube that extends vertically downward from the opening of the cup body into the cup body. A first sealing ring is provided inside the air guide tube. The first sealing ring is located at the upper end of the air guide tube. The connecting tube is inserted into the first sealing ring. The steam guide tube is sleeved on the lower end of the air guide tube. The nozzle is bent toward the side wall of the cup body or toward the center of the cup body.

[0008] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the side wall of the cup body has a protruding tube extending outward, the cup body is provided with a handle, the handle has a horizontal section connected to the upper end of the cup body and a bent section extending downward from the horizontal section, the first connecting member is provided with a bent tube, the bent tube bends downward from the horizontal section and extends into the protruding tube to communicate with the cup body, the upper end of the bent tube is fitted with a second sealing ring, the connecting tube is connected to the upper end of the bent tube, the lower end of the bent tube is fitted with a third sealing ring, and the steam guide tube is inserted into the third sealing ring.

[0009] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the handle is provided with a horizontal section connected to the upper end of the cup body and a bent section extending downward from the horizontal section. The coffee machine housing is provided with a support part connecting the upper body and the lower body. When the horizontal section abuts against one side of the support part, the mating part is vertically aligned with the upper end of the first connector.

[0010] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the coffee machine housing is further provided with a lower body. The lower body has a cup placement area for placing the cup, and also has a stirring head and a magnet driving device. The stirring head is located inside the cup and fits against the upper surface of the bottom wall of the cup. The stirring head has a first magnet. The magnet driving device has a second motor and a magnet mounting base. The magnet mounting base is located on the lower surface of the bottom wall of the cup placement area. The magnet mounting base has a second magnet. The second magnet is magnetically connected to the first magnet. The second motor is installed inside the lower body and electrically connected to the circuit board. The magnet mounting base is connected to the output shaft of the second motor.

[0011] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the upper body is provided with a first guide sleeve extending downward, the connecting tube is sleeved in the first guide sleeve, the docking part extends downward in the first guide sleeve, and the docking part is aligned vertically with the upper end of the first connecting member.

[0012] As an improvement to the combination device of the milk frother and coffee machine of this utility model, a hot water nozzle, a second connector and a boiler are also provided. The coffee machine housing is provided with an upper body. The boiler is located in the upper body and electrically connected to the circuit board. The hot water nozzle is located on the upper body and extends downward from the upper body and communicates with the boiler. The second connector is fixed to the bottom surface of the upper body and surrounds the hot water nozzle. The second connector is sealed to the coffee container.

[0013] As an improvement to the combination device of the milk frother and coffee machine of this utility model, the coffee machine housing is provided with a support part connecting the upper body and the lower body, the water tank is detachably provided on the support part, the upper body and the lower body protrude from the same side of the support part, and the water tank is provided on the side opposite to the protruding direction of the upper body and the lower body.

[0014] This utility model combines a milk frother and a coffee machine, and its advantages include: by setting a steam guide pipe inside the cup, during operation, only the connecting pipe needs to be connected to the first connector, and steam can enter the milk below the surface of the cup through the steam guide pipe to achieve milk frothing. During operation, the user does not need to manually keep the steam guide pipe inside the cup, making it convenient to use. In addition, by providing a nozzle that is bent relative to the vertical direction at the lower end of the steam guide pipe, the steam is kept entering the milk at a preset angle, forming a vortex and bringing air into the milk, thus forming fine foam in the milk, thereby producing more uniform and delicate milk foam. During operation, there is no need to manually intervene in the angle at which the steam enters the milk, and even inexperienced users can produce high-quality milk foam. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the combination device of the milk frother and coffee machine of this utility model.

[0016] Figure 2 for Figure 1 A cross-sectional view taken at the location of the milk frothing container.

[0017] Figure 3 for Figure 1 A sectional view from another sectional position.

[0018] Figure 4 This is a schematic diagram of the connection pipe and the first connector in a preferred embodiment of the combined milk frother and coffee machine of this utility model.

[0019] Figure 5 for Figure 4 Enlarged view of point A.

[0020] Figure 6 for Figure 4 Enlarged view of point B.

[0021] Figure 7 This is a schematic diagram of the connecting pipe and crossbar in a preferred embodiment of the combined milk frother and coffee machine of this utility model.

[0022] Figure 8 This is a schematic diagram of the structure of the milk frothing container in a preferred embodiment of the combination device of the milk frother and coffee machine of this utility model.

[0023] Figure 9 This is a schematic diagram of another embodiment of the combination device of the milk frother and coffee machine of this utility model.

[0024] Figure 10 This is a schematic diagram of the connection between the milk frothing container and the stirring head in another embodiment of the combined milk frother and coffee machine of this utility model.

[0025] Figure 11 for Figure 2 Enlarged view of point C.

[0026] Figure 12 for Figure 10 Enlarged view of point D. Detailed Implementation

[0027] Below, in conjunction with Figures 1 to 12 The present invention will be further described in the figures and in preferred embodiments and other embodiments. It should be noted that, without conflict, the various technical features described below can be arbitrarily combined to form new embodiments.

[0028] like Figure 1-8As shown in Figure 11, in a preferred embodiment, the present invention provides a combination device of a milk frother and a coffee machine, comprising a coffee machine housing 1 and a milk frother 2. The coffee machine housing 1 is provided with a water tank 15, a steam generator 14, and a circuit board 200. The steam generator 14 is electrically connected to the circuit board, and the water tank 15 is connected to the steam generator 14. The milk frother 2 is provided with a connecting pipe 22 and a milk frother container 24. The connecting pipe 22 is provided on the coffee machine housing 1 and extends outside the coffee machine housing 1, and is connected to the steam generator 14. The milk frother container 24 is provided with a cup body 241, a first connecting member 243, and a steam guide pipe 244 provided inside the cup body 241. The first connecting member 243 is provided on the cup body 241 and communicates into the cup body 241. The upper end of the first connecting member 243 is connected to the connecting pipe 22, and the lower end of the connecting pipe 22 is connected to the upper end of the steam guide pipe 244. The lower end of the steam guide pipe 244 is provided with a nozzle 248 that is bent relative to the vertical direction. The nozzle 2481 is located below the recommended minimum liquid level H of the cup body 241. By setting the steam guide pipe 244 in the cup body 241, during operation, only the connecting pipe 22 needs to be connected to the first connecting member 243, and steam can enter the milk below the surface of the cup body 241 from the steam guide pipe 244 to achieve milk frothing. During operation, the user does not need to manually keep the steam guide pipe in the cup body 241, which is convenient to use. In addition, the nozzle 248 that is bent relative to the vertical direction at the lower end of the steam guide pipe 244 allows the steam to be injected into the milk from a preset angle, forming a vortex and bringing air into the milk to form fine foam, thereby producing more uniform and delicate milk foam. During operation, there is no need to manually intervene in the angle of steam injection into the milk, and even inexperienced users can produce high-quality milk foam.

[0029] like Figure 2 , Figure 3 and Figure 4As shown, in a preferred embodiment, the coffee machine housing 1 of the combined milk frother and coffee machine of this utility model has an upper body 11 and a lower body 12. The milk frother 2 also has an automatic lifting mechanism 23. The connecting pipe 22 and the automatic lifting mechanism 23 are both located on the upper body 11. The connecting pipe 22 is connected to the automatic lifting mechanism 23. The connecting pipe 22 has a docking part 221, which protrudes downward from the upper body 11. The lower body 12 has a cup placement area 121, which is located below the docking part 221. The cup 241 is placed in the cup placement area 121. The upper end of the first connector 243 is aligned with the upper end of the connector 21. The automatic lifting mechanism 23 is electrically connected to the circuit board 200. The automatic lifting mechanism 23 drives the connecting pipe 22 to move up and down, so that the docking part 221 docks with the first connector 243 or the docking part 221 disengages upward from the first connector 243. By providing the automatic lifting mechanism 23, during operation, the automatic lifting mechanism 23 drives the connecting pipe 22 to move downward, and the docking part 221 automatically docks with the first connecting pipe 22, so that steam is transported from the connecting pipe 22 to the steam guide pipe 244 and enters below the milk surface in the cup body 241, thereby realizing automatic milk frothing.

[0030] like Figure 3 , Figure 4 and Figure 7 As shown, in a preferred embodiment, the automatic lifting mechanism 23 of the combined milk frother and coffee machine of this utility model includes a first motor 231, a screw 232, and a guide rod 233. A horizontal bar 25 protrudes from the connecting pipe 22 in the horizontal direction. The horizontal bar 25 has a guide hole 251 and a threaded hole 252 in the vertical direction. The guide hole 251 is located at the free end of the horizontal bar 25, and the threaded hole 252 is located between the guide hole 251 and the connecting pipe 22. The guide rod 233 is located inside the upper seat 11, and the guide hole 251 is connected to the... The guide rod 233 is slidable up and down along the guide rod 233. The first motor 231 is fixed inside the upper body 11 and electrically connected to the circuit board 200. The screw 232 is engaged with the threaded hole 252 and one end of the screw 232 is connected to the output shaft of the first motor 231. The circuit board 200 controls the first motor 231 to drive the screw 232 to rotate. The crossbar 25 drives the connecting pipe 22 to move up and down. By setting the guide rod 233, the automatic lifting mechanism 23 can maintain overall balance when moving up and down.

[0031] like Figure 4 and Figure 6As shown, in a preferred embodiment, the cup placement area 121 of the combined milk frother and coffee machine of this utility model is grooved, and a limiting groove 1221 is provided outside the cup placement area 121. The cup body 241 is provided with a handle 242. When the handle 242 is located in the limiting groove 1221, the docking part 221 is vertically aligned with the upper end of the first connecting member 243. The handle 242 is set in the limiting groove 1221 to ensure that the cup body 241 is placed in place, thereby ensuring that during operation, the automatic lifting mechanism 23 drives the docking part 221 to smoothly dock with the first connecting member 243, avoiding misalignment between the docking part 221 and the first connecting member 243. The lower seat 12 is provided with a boss 122. The boss 122 is located outside the cup placement area 121 and protrudes upward from the cup placement area 121. The boss 122 is recessed downward to form the limiting groove 1221. A tactile switch 100 is provided inside the 1221. The tactile switch 100 is electrically connected to the circuit board 200. The handle 242 abuts downward against the tactile switch 100 and emits a touch signal. The circuit board 200 determines that the cup body 241 is placed in the cup body 241 placement area 121 based on the touch signal. By setting the tactile switch 100 to detect whether the cup body 241 is placed in the cup body 241 placement area 121, the circuit board 200 controls the first motor to work. Specifically, when the circuit board 200 does not receive a touch signal, the circuit board 200 will not control the first motor 231 to work. When the circuit board 200 receives a touch signal, the circuit board 200 controls the first motor 231 to work. The first motor 231 drives the crossbar 25 to move downward. The crossbar 25 drives the connecting tube 22 to move downward so that the docking part 221 docks with the first connector 243.

[0032] like Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment, the first connecting member 243 of the combined milk frother and coffee machine of this utility model is provided with an air guide tube 2431 extending vertically downward from the opening of the cup body into the cup body 241. A first sealing ring 245 is provided inside the air guide tube 2431. The first sealing ring 245 is located at the upper end of the air guide tube 2431. The connecting pipe 22 is inserted into the first sealing ring 245. The steam guide tube 244 is sleeved on the lower end of the air guide tube 2431 and is connected to the first sealing ring 245 through the connecting pipe 22, so that the connecting pipe 22 and the air guide tube 2431 are sealed together. The nozzle 248 is bent toward the side wall of the cup body 241, and steam is injected into the milk from the nozzle 2481, causing the milk to swirl and achieve milk frothing. In other embodiments, the nozzle 248 is bent toward the center of the cup body 241.

[0033] like Figure 2 and Figure 11 As shown, in a preferred embodiment, the coffee machine housing 1 of the combined milk frother and coffee machine of this utility model further includes a lower base 12. The lower base 12 has a cup placement area 121 for placing the cup 241, and also includes a stirring head 31 and a magnet driving device 32. The stirring head 31 is disposed inside the cup 241 and fits against the upper surface of the bottom wall of the cup 241. The stirring head 31 is provided with a first magnet 311. The magnet driving device 32 includes a second motor 322 and a magnet mounting base 323. The magnet mounting base 323 is disposed on the lower surface of the bottom wall of the cup placement area 121. The magnet mounting base 323 is provided with... The second magnet 321 is magnetically connected to the first magnet 311. The second motor 322 is installed inside the lower base 12 and electrically connected to the circuit board 200. The magnet mounting base 323 is connected to the output shaft of the second motor 322. By setting the stirring head 31 and the magnet driving device 32, during operation, the circuit board 200 controls the rotation of the second motor 322, which drives the magnet mounting base 323 to rotate, thereby driving the second magnet 321 to rotate. The second magnet 321 is magnetically connected to the first magnet 311, thereby driving the stirring head 31 to rotate, thus achieving milk frothing.

[0034] like Figure 2 As shown, in a preferred embodiment, the upper body 11 of the combined milk frother and coffee machine of this utility model is provided with a first guide sleeve 111 extending downward. The connecting tube 22 is sleeved inside the first guide sleeve 111. The docking part 221 extends downward from the first guide sleeve 111. The docking part 221 is vertically aligned with the upper end of the first connecting member 243. By setting the first guide sleeve 111, the connecting tube 22 is vertically fixed to the upper body 11, preventing the connecting tube 22 from shaking during up and down movement, which would cause the docking part 221 to be misaligned with the upper end of the first connecting member 243.

[0035] like Figure 1 and Figure 2As shown, in a preferred embodiment, a hot water nozzle (not shown), a second connector 41, and a boiler (not shown) are also provided. The coffee machine housing 1 includes an upper body 11. The boiler (not shown) is disposed inside the upper body 11 and electrically connected to the circuit board 200. The hot water nozzle (not shown) is disposed on the upper body 11 and extends downward from the upper body 11 and communicates with the boiler. The second connector 41 is fixed to the bottom surface of the upper body 11 and surrounds the hot water nozzle. The second connector 41 is sealed to a coffee container (not shown). The coffee container is used to hold coffee powder to be extracted. When extracting coffee, the circuit board 200 controls the boiler to heat up and delivers the heated hot water to the hot water nozzle. The hot water nozzle sprays the hot water into the coffee container containing the coffee powder to extract the coffee.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, the coffee machine housing 1 of the combined milk frother and coffee machine of this utility model includes a support portion 13 connecting the upper body 11 and the lower body 12. A water tank 15 is detachably disposed on the support portion 13. The upper body 11 and the lower body 12 protrude from the same side of the support portion 13, and the water tank 15 is disposed on the side opposite to the protruding direction of the upper body 11 and the lower body 12. The control circuit board 200 is disposed within the support portion 13. The upper body 11 is provided with a first conveying pipe 21 and a second conveying pipe (not shown). One end of the first conveying pipe 21 is connected to the steam generator 14, and the other end of the first conveying pipe 21 is connected to the connecting pipe 22. One end of the second conveying pipe is connected to the boiler, and the other end of the second conveying pipe is connected to the hot water nozzle. One end of the water supply pipe 16 is connected to the steam generator 14 and the boiler, and the other end of the water supply pipe 16 is connected to the water tank 15. In other embodiments, the boiler is the steam generator, that is, the two are the same heating element. The upper body 11 is provided with a first delivery pipe 21, a second delivery pipe (not shown), a water supply pipe 16 and a three-way valve 17 (not shown). The three-way valve 17 is provided with a first interface, a second interface and a third interface. The first interface of the three-way valve 17 is connected to the steam generator 14. One end of the first delivery pipe 21 is connected to the second interface of the three-way valve 17, and the other end of the first delivery pipe 21 is connected to the connecting pipe 22. One end of the second delivery pipe is connected to the third interface of the three-way valve 17, and the other end of the second delivery pipe is connected to the hot water nozzle. One end of the water supply pipe 16 is connected to the steam generator 14, and the other end of the water supply pipe 16 is connected to the water tank 15. By setting the three-way valve, the steam of the steam generator 14 is respectively guided to the hot water nozzle for coffee extraction and to the connecting pipe 22 for milk frothing.

[0037] like Figure 9 , Figure 10 and Figure 12 As shown in another embodiment, in the combination device of the milk frother and coffee maker of this utility model, the side wall of the cup body 241 has a protruding tube 2411 extending outward. The cup body 241 is provided with a handle 242, which includes a horizontal section 2421 connected to the upper end of the cup body 241 and a bent section 2422 extending downward from the horizontal section 2421. The first connector 243 is provided with a bent tube 2432, which bends downward from the horizontal section 2421 and extends into the protruding tube 2411 to communicate with the cup body 241. The upper end of the 2 is fitted with a second sealing ring 246. The connecting pipe 22 is connected to the upper end of the bend 2432. The lower end of the bend 2432 is fitted with a third sealing ring 247. The steam guide pipe 244 is inserted into the third sealing ring 247. By setting the upper end of the bend 2432 to be fitted with a second sealing ring 246, the connecting pipe 22 and the bend 2432 are sealed together. By setting the steam guide pipe 244 to be inserted into the third sealing ring 247, the steam guide pipe 244 and the bend 2432 are sealed together.

[0038] like Figure 9 As shown in another embodiment, in the combination device of the milk frother and coffee machine of this utility model, the handle 242 includes a horizontal section 2421 connected to the upper end of the cup body 241 and a bent section 2422 extending downward from the horizontal section 2421. The coffee machine housing 1 is provided with a support part 13 connecting the upper seat 11 and the lower seat 12. When the horizontal section 2421 abuts against one side of the support part 13, the docking part 221 is vertically aligned with the upper end of the first connecting member 243, thereby ensuring that during operation, the automatic lifting mechanism 23 drives the docking part 221 to smoothly dock with the upper end of the bent tube 2432, avoiding misalignment between the docking part 221 and the upper end of the bent tube 2432.

[0039] The working process of this utility model's combination device for a milk frother and a coffee machine is briefly described as follows: The milk frothing methods include a steam milk frothing mode and an electromagnetic drive milk frothing mode. The steam milk frothing mode includes a first steam milk frothing mode and a second steam milk frothing mode.

[0040] The working principle of the first steam milk frothing mode is as follows: Milk is placed in the cup. The connecting pipe is manually connected to the first connector to start the milk frothing machine. The circuit board controls the steam generator to heat the water from the water tank through the water supply pipe into steam. The steam enters the connecting pipe through the first delivery pipe, and then enters the steam guide pipe through the first connector. The steam is injected into the milk from the nozzle, causing the milk to swirl and achieve automatic milk frothing. After the milk frothing is completed, the circuit board controls the steam generator to stop working.

[0041] The working principle of the second steam milk frothing mode is as follows: The cup containing milk is placed in the cup placement area. The handle touches the touch switch and sends a signal indicating it has been touched. The circuit board determines that the cup is in the cup placement area based on the touch signal. The circuit board controls the first motor to rotate, which drives the screw to rotate. The screw and the threaded hole engage to move the connecting pipe downwards a preset distance, and the docking part engages downwards with the first connector. Simultaneously, the circuit board controls the steam generator to heat the water from the water tank through the water supply pipe, turning it into steam. The steam enters the connecting pipe through the first delivery pipe, then through the first connector and into the steam guide pipe. The steam is then injected into the milk from the nozzle, causing the milk to swirl and automatically froth. After frothing is complete, the circuit board controls the steam generator to stop working and simultaneously controls the first motor to rotate in the opposite direction. The screw drives the connecting pipe upwards, and the docking part disengages upwards from the first connector.

[0042] The working principle of the electromagnetic drive milk frothing mode is as follows: the cup containing milk is placed in the cup placement area, the circuit board controls the second motor to rotate, the second motor drives the electromagnet mounting base to drive the second set of electromagnets to rotate, and the second set of electromagnets controls the rotation of the stirring head through the first set of electromagnets, thereby realizing milk frothing;

[0043] Alternatively, both the steam milk frothing mode and the electromagnetic milk frothing mode can be activated simultaneously.

[0044] During coffee extraction, a coffee container containing coffee powder is sealed and connected to the second connector. The hot water nozzle is aligned vertically with the coffee container. The circuit board controls the boiler to heat the water from the water tank via the water supply pipe. The hot water is then delivered to the hot water nozzle via the second delivery pipe, and the hot water nozzle sprays the hot water into the coffee container to extract the coffee.

[0045] After the coffee is extracted, the user then starts frothing the milk, pouring the frothed milk into the extracted coffee to create latte art.

[0046] This utility model combines a milk frother and a coffee machine, and its advantages include: by setting a steam guide pipe inside the cup, during operation, only the connecting pipe needs to be connected to the first connector, and steam can enter the milk below the surface of the cup through the steam guide pipe to achieve milk frothing. During operation, the user does not need to manually keep the steam guide pipe inside the cup, making it convenient to use. In addition, by providing a nozzle that is bent relative to the vertical direction at the lower end of the steam guide pipe, the steam is kept at a preset angle to be injected into the milk, forming a vortex and bringing air into the milk, so that fine bubbles are formed in the milk, thereby producing more uniform and delicate milk foam. During operation, there is no need to manually intervene in the angle of steam injection into the milk, and even inexperienced users can produce high-quality milk foam.

[0047] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A combined device of a milk frother and a coffee machine, characterized in that: A coffee machine housing and a milk frothing machine are provided, the coffee machine housing is provided with a water tank, a steam generator and a circuit board, the steam generator is electrically connected to the circuit board, the water tank is communicated with the steam generator, the milk frothing machine is provided with a connecting pipe and a milk frothing container, the connecting pipe is provided on the coffee machine housing and extends outside the coffee machine housing, the connecting pipe is communicated with the steam generator, the milk frothing container is provided with a cup body, a first connecting member and a steam guide pipe provided in the cup body, the first connecting member is provided on the cup body and communicated with the cup body, the upper end of the first connecting member is connected to the connecting pipe, the lower end of the connecting pipe is connected to the upper end of the steam guide pipe, the lower end of the steam guide pipe is provided with a nozzle bent relative to the vertical direction, and the nozzle of the nozzle is located below the recommended minimum liquid level of the cup body.

2. The combined device of a milk frother and a coffee machine according to claim 1, characterized in that: The coffee machine housing is provided with an upper body and a lower body, and the milk frothing machine is also provided with an automatic lifting mechanism. The connecting pipe and the automatic lifting mechanism are both provided on the upper body, and the connecting pipe is connected to the automatic lifting mechanism. The connecting pipe is provided with a docking portion, and the docking portion protrudes downward from the upper body, and the lower body is provided with a cup body placement area, and the cup body placement area is located below the docking portion. The cup body is placed in the cup body placement area, and the docking portion is aligned up and down with the upper end of the first connecting piece, and the automatic lifting mechanism is electrically connected to the circuit board, and the automatic lifting mechanism drives the connecting pipe to move up and down so that the docking portion docks with the first connecting piece or the docking portion detaches from the first connecting piece upward.

3. The combined device of a milk frother and a coffee machine according to claim 2, characterized in that: The automatic lifting mechanism is provided with a first motor, a screw and a guide rod, the connecting tube is provided with a cross rod protruding in the horizontal direction, the cross rod is provided with a guide hole and a threaded hole in the vertical direction, the guide hole is provided at the free end of the cross rod, the threaded hole is located between the guide hole and the connecting tube, the guide rod is provided in the upper seat body, the guide hole is connected to the guide rod and can slide up and down along the guide rod, the first motor is fixed in the upper seat body and is electrically connected to the circuit board, the screw cooperates with the threaded hole and one end of the screw is connected to the output shaft of the first motor, the circuit board controls the first motor to drive the screw to rotate, and the cross rod drives the connecting tube to move up and down.

4. The combined device of a milk frother and a coffee machine according to claim 2, characterized in that: The cup body placement area is in a groove shape, and a limiting groove is provided outside the cup body placement area. The cup body is provided with a handle. When the handle is located in the limiting groove, the docking portion is aligned with the upper end of the first connecting member up and down. The lower seat body is provided with a boss, and the boss is located outside the cup body placement area and protrudes upward from the cup body placement area. The boss is recessed downward to form the limiting groove. A touch switch is provided in the limiting groove, and the touch switch is electrically connected to the circuit board. The handle abuts downward against the touch switch and sends a touched signal. The circuit board determines that the cup body is placed in the cup body placement area according to the touched signal.

5. The combined device of a milk frother and a coffee machine according to claim 1, characterized in that: The first connecting piece is provided with an air duct extending vertically downward from the opening of the cup body into the cup body, a first sealing ring is provided in the air duct, the first sealing ring is located at the upper end of the air duct, the connecting pipe is inserted into the first sealing ring, the steam guide pipe is sleeved on the lower end of the air duct, and the nozzle is bent toward the side wall of the cup body or toward the center of the cup body.

6. The combined device of a milk frother and a coffee machine according to claim 1, characterized in that: The side wall of the cup body has a convex tube protruding outward, and the cup body is provided with a handle. The handle has a horizontal section connected to the upper end of the cup body and a bent section extending downward from the horizontal section. The first connecting piece is provided with a bent pipe, and the bent pipe bends downward from the horizontal section and extends into the convex tube to communicate with the cup body. A second sealing ring is sleeved in the upper end of the bent pipe, the connecting pipe is connected to the upper end of the bent pipe, and a third sealing ring is sleeved in the lower end of the bent pipe, and the steam guide pipe is plugged into the third sealing ring.

7. The combined device of a milk frother and a coffee machine according to claim 4, characterized in that: The handle is provided with a horizontal section connected to the upper end of the cup body and a bent section extending downward from the horizontal section, and the coffee machine shell is provided with a supporting portion connecting the upper seat body and the lower seat body, and when the horizontal section abuts against one side of the supporting portion, the docking portion is aligned up and down with the upper end of the first connecting member.

8. The combined device of a milk frother and a coffee machine according to claim 1, characterized in that: The coffee machine housing is also provided with a lower seat body, the lower seat body is provided with a cup body placement area for placing the cup body, and is also provided with a stirring head and a magnet driving device, the stirring head is arranged in the cup body and fits against the upper surface of the bottom wall of the cup body, the stirring head is provided with a first magnet, the magnet driving device is provided with a second motor and a magnet mounting seat, the magnet mounting seat is arranged on the lower surface of the bottom wall of the cup body placement area, the magnet mounting seat is provided with a second magnet, the second magnet is magnetically connected to the first magnet, the second motor is installed in the lower seat body and electrically connected to the circuit board, and the magnet mounting seat is connected to the output shaft of the second motor.

9. The combined device of a milk frother and a coffee machine according to claim 2, characterized in that: The upper seat body protrudes downward to be provided with a first guide sleeve, the connecting pipe is sleeved in the first guide sleeve, the docking portion protrudes downward from the first guide sleeve, and the docking portion is aligned with the upper end of the first connecting member.

10. The combined device of a milk frother and a coffee machine according to claim 1, characterized in that: A hot water nozzle, a second connecting member and a boiler are also provided. The coffee machine housing is provided with an upper seat body. The boiler is provided in the upper seat body and is electrically connected to the circuit board. The hot water nozzle is provided on the upper seat body and extends downward from the upper seat body and is connected to the boiler. The second connecting member is fixed to the bottom surface of the upper seat body and is arranged around the hot water nozzle. The second connecting member is sealed and connected to the coffee container.

11. The combined device of a milk frother and a coffee machine according to claim 2, characterized in that: The coffee machine housing is provided with a supporting portion connecting the upper seat and the lower seat, the water tank is detachably arranged on the supporting portion, the upper seat and the lower seat protrude on the same side of the supporting portion, and the water tank is arranged on the side opposite to the protruding direction of the upper seat and the lower seat.

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