CN219940341U - Beverage making system and coffee machine - Google Patents

Abstract

The utility model belongs to the technical field of beverage making, and discloses a beverage making system and a coffee machine, wherein the beverage making system comprises a first conveying pipeline, an air inlet device, a pressure changing device and a heating device, a liquid inlet of the first conveying pipeline is communicated with a beverage container, a first pump is arranged on the first conveying pipeline, milk is pumped from the interior of the beverage container by the first pump, and flows along the first conveying pipeline, the air inlet device is filled with air into the first conveying pipeline, the pressure changing device is arranged on the first conveying pipeline, the pressure changing device pressurizes and mixes the milk and the air to generate milk foam, the heating device comprises a steam source, and the steam source is configured to introduce steam into the first conveying pipeline to mix the milk foam with the steam, so that the milk foam is heated uniformly, the quality of the prepared hot milk foam is guaranteed, meanwhile, milk scale can be prevented from forming in the first conveying pipeline after the milk foam passes through, and the cold milk foam or the hot milk can be prepared by only one milk supplying pipeline.

Description

Beverage making system and coffee machine

Technical Field

The utility model relates to the technical field of beverage making, in particular to a beverage making system and a coffee machine.

Background

Along with the improvement of living standard, the demands of people on the taste and quality of coffee beverage are continuously improved. For example, partially fancy coffee requires the addition of milk foam to the coffee during the making process to improve the taste of the coffee.

Specifically, in the prior art, a mixing structure for processing milk into milk foam is generally arranged on a milk supply pipeline for a coffee machine, and the milk foam added into coffee is divided into cold milk foam and hot milk foam, wherein the milk foam in the milk supply pipeline is generally heated in a heat conduction mode in the prior art to prepare hot milk foam, but the problem that the milk foam in the milk supply pipeline is heated and is heated unevenly in the process of heating the milk supply pipeline is solved by heat conduction, so that the milk foam is heated unevenly, the quality of the prepared hot milk foam is influenced, and when the temperature of a certain position on the milk supply pipeline is too high, milk scales are formed in the milk supply pipeline after the milk foam passes, so that the milk supply pipeline is polluted, and meanwhile, the milk supply pipeline is easy to be blocked.

Therefore, the above-described problems are to be solved.

Disclosure of Invention

The utility model aims to provide a beverage making system and a coffee machine, which can realize uniform heating of milk foam, ensure the quality of the milk foam obtained by making, avoid forming milk scale on a milk supply pipeline, and can make cold milk foam or hot milk foam by only one milk supply pipeline.

To achieve the purpose, the utility model adopts the following technical scheme:

in one aspect, the present utility model provides a beverage making system comprising:

a first delivery line having a liquid inlet in communication with a beverage container, the first delivery line being provided with a first pump configured to draw milk from within the beverage container and to cause the milk to flow along the first delivery line;

an air intake device configured to charge air into the first delivery line;

a pressure changing device disposed on the first delivery line, the pressure changing device configured to mix the milk and the air into milk foam; a kind of electronic device with high-pressure air-conditioning system

A heating device includes a steam source configured to introduce steam into the first delivery line to mix the milk foam with the steam.

Preferably, the air inlet device comprises a pulse air valve which is communicated with the first conveying pipeline and is positioned at any position between the liquid inlet and the pressure changing device.

Preferably, a communication position of the pulse air valve with the first delivery pipe is located on an upstream side of the first pump in a delivery direction of the first delivery pipe.

Preferably, a communication position between the pulse air valve and the first delivery pipeline is located between the first pump and the pressure changing device.

Preferably, the air intake device further comprises a second pump, and the second pump is communicated with the pulse air valve.

Preferably, the first conveying pipeline is provided with a heating chamber, the heating chamber is located at the downstream side of the pressure changing device along the conveying direction of the first conveying pipeline, and the heating device is communicated with the heating chamber and controllably conveys steam to the heating chamber.

Preferably, the heating chamber is provided with a first opening communicating with the pressure transforming device and a second opening communicating with the heating device.

Preferably, the heating device is communicated with the flow passage of the pressure changing device, and the steam is controllably conveyed into the flow passage of the pressure changing device.

Preferably, the beverage making system further comprises a first temperature sensor arranged on the first conveying pipeline and positioned between the liquid inlet of the first conveying pipeline and the heating device.

Preferably, the beverage making system further includes a second temperature sensor provided on the first conveying pipe and located on a downstream side of the heating device in a conveying direction of the first conveying pipe.

Preferably, the liquid outlet of the first conveying pipeline is provided with a three-way valve, the liquid inlet of the three-way valve is communicated with the liquid outlet of the first conveying pipeline, and the two liquid outlets of the three-way valve are respectively a beverage outlet and a waste liquid outlet.

Preferably, the beverage making system further comprises a controller electrically connected to the air inlet device and/or the heating device.

Preferably, the first delivery pipeline is communicated with more than two beverage containers, and the beverage making system further comprises a first control valve, wherein the first control valve is arranged at the upstream of the first pump and is used for controlling the first pump to selectively extract milk in one or more than two beverage containers.

In another aspect, the utility model provides a coffee machine comprising a beverage making system as described above.

The utility model has the beneficial effects that: in the utility model, the first conveying pipeline is the milk supplying pipeline, and the milk foam conveyed along the first conveying pipeline is heated by mixing steam into the milk foam conveyed along the first conveying pipeline, so that the milk foam is heated uniformly, the quality of the manufactured hot milk foam is ensured, meanwhile, the formation of milk scale in the first conveying pipeline after the milk foam passes through can be avoided, the risk of pollution or blockage of the first conveying pipeline is reduced, and the milk foam conveyed along the first conveying pipeline is not heated when the steam valve of the steam source is closed to stop the steam from being introduced into the first conveying pipeline. The coffee machine comprises the drink making system, so that the quality of milk foam obtained by the coffee machine can be ensured, meanwhile, the formation of milk scale on a milk supply pipeline can be avoided, and on the other hand, cold milk foam or hot milk foam can be made by only one milk supply pipeline, and the structure is simple.

Drawings

FIG. 1 is a schematic diagram of a milk system in accordance with a first embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a transformer device and a third transfer line in accordance with a first embodiment of the present utility model;

FIG. 3 is a schematic diagram of a milk system in a second embodiment of the utility model;

FIG. 4 is a schematic diagram of the structure of a milk system in a third embodiment of the utility model;

FIG. 5 is a schematic diagram of the structure of a milk system in a fourth embodiment of the utility model;

FIG. 6 is a schematic diagram of the structure of a milk system in a fifth embodiment of the utility model;

fig. 7 is a schematic structural diagram of a transformer and a heater according to a sixth embodiment of the present utility model.

In the figure:

110. a beverage container; 120. a first delivery line; 121. a heating chamber; 1211. a first opening; 1212. a second opening; 122. a three-way valve; 1221. a beverage outlet; 1222. a waste liquid outlet; 123. a first delivery conduit; 124. a venturi nozzle; 130. a first pump; 140. an air intake device; 141. a second delivery line; 1411. a first branch; 1412. a second branch; 142. a pulse air valve; 143. a second pump; 150. a voltage transformation device; 160. a heating device; 161. a steam source; 162. a third delivery line; 170. a first temperature sensor; 180. a second temperature sensor; 191. an electromagnetic valve; 192. a first control valve; 193. and a second control valve.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

Based on the foregoing, in the prior art, the milk foam in the milk supply pipeline is generally heated by a heat conduction manner to obtain hot milk foam, specifically, in the beverage preparation system in the prior art, the milk foam in the milk supply pipeline is generally heated by one of the heat conduction manners such as heating plate heating, thick film heating, hot water boiler heat conduction, infrared or electromagnetic heat radiation, so as to obtain hot milk foam, because the heat is transferred between the heating element and the heated milk foam through the milk supply pipeline, on one hand, the problem that the milk supply pipeline is heated unevenly in the process of heating and heat conduction of the milk supply pipeline is easy to occur, thereby causing uneven heating of the milk foam, affecting the quality of the prepared hot milk foam, and when the temperature of a certain position on the milk supply pipeline is too high, after the milk foam passes through, the milk beverage remained in the milk supply pipeline can be evaporated, thereby forming milk scale in the milk supply pipeline to pollute the milk supply pipeline, and meanwhile, the milk supply pipeline is blocked, on the other hand, because the temperature of the heated milk supply pipeline is easy to change rapidly, and meanwhile, the coffee machine is provided with a coffee machine, so that the coffee machine needs to prepare the milk foam.

In order to solve the above-mentioned problems, referring to fig. 1 and 2, the present embodiment provides a beverage making system, which includes a first conveying pipeline 120, an air inlet device 140, a pressure changing device 150 and a heating device 160, wherein a liquid inlet of the first conveying pipeline 120 is communicated with a beverage container 110, a first pump 130 is disposed on the first conveying pipeline 120, the first pump 130 is configured to draw milk from the beverage container 110 and make the milk flow along the first conveying pipeline 120, the air inlet device 140 is configured to charge air into the first conveying pipeline 120, the pressure changing device 150 is disposed on the first conveying pipeline 120, the pressure changing device 150 is configured to mix the milk and the air into milk foam, the heating device 160 includes a steam source 161, and the steam source 161 is configured to introduce steam into the first conveying pipeline 120 so as to mix the milk foam and the steam.

In this embodiment, the first conveying pipeline 120 is a milk supply pipeline, in this embodiment, the milk foam is heated by mixing steam into the milk foam conveyed along the first conveying pipeline 120, so as to ensure that the milk foam is heated uniformly, further ensure the quality of the manufactured hot milk foam, and meanwhile, avoid forming milk scale in the first conveying pipeline 120 after the milk foam passes through, so as to reduce the risk of pollution or blockage of the first conveying pipeline 120.

Specifically, in this embodiment, the first pump 130 and the pressure changing device 150 are disposed in communication along the conveying direction of the first conveying pipeline 120, that is, the pressure changing device 150 is located at a downstream side of the first pump 130 along the conveying direction of the first conveying pipeline 120, flow passages are respectively disposed in the first pump 130 and the pressure changing device 150, the first pump 130 and the pressure changing device 150 are communicated through the first conveying pipeline 123, so as to form the first conveying pipeline 120, and the steam source 161 of the heating device 160 is communicated at a downstream side of the pressure changing device 150 along the conveying direction of the first conveying pipeline 120. When the cold milk foam needs to be produced, the first pump 130 pumps the milk from the beverage container 110 and conveys the milk along the first conveying pipeline 120, and the air inlet device 140 charges air into the first conveying pipeline 120 during the conveying process of the milk along the first conveying pipeline 120 so as to mix the air with the milk, the pressure changing device 150 can pressurize the mixture of the air and the milk so as to further mix the air and the milk so as to form uniform milk foam, and then the milk foam flows out from the liquid outlet of the first conveying pipeline 120 so as to obtain the cold milk foam. When the hot milk foam is required to be produced, the first pump 130 pumps the milk from the beverage container 110 and conveys the milk along the first conveying pipeline 120, the air inlet device 140 charges air into the first conveying pipeline 120 in the process that the milk is conveyed along the first conveying pipeline 120 so as to mix the air with the milk, the pressure changing device 150 can pressurize the mixture of the air and the milk so as to further mix the air and the milk so as to form uniform milk foam, the steam source 161 introduces steam into the first conveying pipeline 120 so as to mix the steam with the milk foam, thereby heating the milk foam, and the heated milk foam flows out from the liquid outlet of the first conveying pipeline 120 so as to obtain the hot milk foam.

Preferably, the first conveying pipeline 120 is provided with a heating chamber 121, the heating chamber 121 is located at the downstream side of the pressure transforming device 150 along the conveying direction of the first conveying pipeline 120, the heating device 160 is communicated with the heating chamber 121 and is used for controllably conveying steam to the heating chamber 121, specifically, the heating device 160 further comprises a third conveying pipeline 162, two ends of the third conveying pipeline 162 are respectively communicated with the heating chamber 121 and the steam source 161, that is, in this embodiment, the pressure transforming device 150 and the heating device 160 are two independent modules, and in this embodiment, milk foam and steam generated by mixing the pressure transforming device 150 and the steam source 161 are led into the heating chamber 121 to be fully mixed, so that milk foam or milk liquid is fully heated.

It will be appreciated that the temperature of the heated milk foam or the heated milk can be controlled by controlling the amount of steam introduced into the first transfer line 120 in this embodiment. Specifically, the amount of steam entering the heating device 160 can be controlled according to different beverage requirements in the present embodiment to heat milk foam or milk to different temperatures.

Further, the heating chamber 121 is provided with a first opening 1211 and a second opening 1212, the first opening 1211 is communicated with the transformer 150, the second opening 1212 is communicated with the third conveying pipeline 162, and the opening direction of the first opening 1211 is parallel to the opening direction of the second opening 1212, so that the direction of milk foam and steam entering the heating chamber 121 is ensured to be parallel, the steam and the milk foam are prevented from colliding, and the quality of the milk foam is prevented from being influenced.

It should be noted that the beverage making system further includes a controller (not shown in the drawings), and the controller is electrically connected to the air inlet device 140 and/or the heating device 160. The controller can control the air inlet device 140 to charge air into the first conveying pipeline 120 and/or the heating device 160 to charge steam into the first conveying pipeline 120 in a linkage manner when the first pump 130 pumps milk, so as to obtain a milk beverage preset by the system. In addition to the hot milk foam and the cold milk foam, the beverage making system in this embodiment may be further used to provide hot milk or cold milk, specifically, when the hot milk is needed, the first pump 130 draws milk from the beverage container 110 and conveys the milk along the first conveying pipeline 120, the controller controls the air inlet device 140 to stop charging air into the first conveying pipeline 120, and controls the steam source 161 of the heating device 160 to charge steam into the first conveying pipeline 120, so that the steam is mixed with the milk, thereby heating the milk, and the heated milk flows out from the liquid outlet of the first conveying pipeline 120, thereby obtaining the hot milk. When cold milk is required to be obtained, the first pump 130 draws milk from the beverage container 110 and conveys the milk along the first conveying pipeline 120, the controller controls the air inlet device 140 to stop filling air into the first conveying pipeline 120, and controls the steam source 161 of the heating device 160 to stop filling steam into the first conveying pipeline 120, so that the milk flows out from the liquid outlet of the first conveying pipeline 120, and cold milk is obtained. I.e. when it is desired to obtain hot or cold milk, the controller controls the air inlet means 140 to stop the air supply to the first delivery line 120.

Preferably, the first delivery pipe 120 in this embodiment is further provided with a solenoid valve 191, and the solenoid valve 191 is disposed on the upstream side of the first pump 130, so that the on-off of the first delivery pipe 120 can be controlled.

It will be appreciated that the prior art arrangements by heat conduction need to ensure that heat is transferred to the milk supply line, and therefore the heat conduction arrangement is strictly required, whereas the arrangement of the steam source 161 of the heating device 160 in this embodiment is less required.

The embodiment also provides a coffee machine, and the coffee machine comprises the drink making system, so that the quality of milk foam obtained by making the coffee machine can be guaranteed, meanwhile, milk scale can be prevented from being formed on the milk supply pipeline, and cold milk foam or hot milk foam can be made only by one milk supply pipeline on the other hand, and the coffee machine is simple in structure.

It will be appreciated that the beverage making system of this embodiment can be used on other beverage making machines in addition to coffee machines, and this embodiment is not particularly limited.

Based on the foregoing, the transformer 150 in this embodiment includes a screw rod (not shown in the figure) and a second conveying pipe (not shown in the figure), two ends of the second conveying pipe are respectively abutted with the first conveying pipe 123, and the screw rod is disposed in the second conveying pipe along the extending direction of the second conveying pipe and forms a spiral flow channel with the second conveying pipe, so that milk and air flowing through the spiral flow channel can be pressurized and mixed, and milk foam can be obtained.

Preferably, the liquid outlet of the first conveying pipeline 120 in this embodiment is provided with a three-way valve 122, the liquid inlet of the three-way valve 122 is communicated with the liquid outlet of the first conveying pipeline 120, two liquid outlets of the three-way valve 122 are a beverage outlet 1221 and a waste liquid outlet 1222, that is, hot milk, cold milk, hot milk foam and cold milk foam can all flow out from the beverage outlet 1221, and besides the beverage outlet 1221, the beverage making system in this embodiment is further provided with a waste liquid outlet 1222, so that the liquid inlet of the first conveying pipeline 120 can be communicated with a cleaning system, the cleaning system can introduce cleaning liquid into the first conveying pipeline 120, thereby cleaning the first conveying pipeline 120, and the waste liquid after cleaning is discharged from the waste liquid outlet 1222, thereby further reducing the risk of pollution or blockage of the first conveying pipeline 120.

Based on the above, the first pump 130 is a gear pump, in this embodiment, the speed of the first pump 130 is controlled to control the flow rate of milk foam in the first conveying pipeline 120, so as to control the residence time of milk foam in the heating chamber 121, and further control the mixing time of steam and milk foam, so as to adjust the temperature of the hot milk foam flowing out from the liquid outlet of the first conveying pipeline 120, thereby obtaining hot milk foam or hot milk with different temperatures.

Preferably, the beverage making system further includes a first temperature sensor 170, where the first temperature sensor 170 is disposed on the first conveying pipeline 120 and located between the liquid inlet of the first conveying pipeline 120 and the heating device 160, and the first temperature sensor 170 is used to detect a temperature of milk pumped by the first pump 130 in the beverage container 110, and the first pump 130 can adjust a rotation speed according to the temperature of the milk detected by the first temperature sensor 170, so as to control a mixing time of steam and milk foam, and further control a heating time of the milk foam, so as to ensure that a temperature of the obtained hot milk foam or hot milk meets a requirement.

Further, the beverage making system in this embodiment further includes a second temperature sensor 180, where the second temperature sensor 180 is disposed on the first conveying pipeline 120 and is located on a downstream side of the heating device 160 along the conveying direction of the first conveying pipeline 120, so as to detect the temperature of the hot milk foam or the hot milk, so as to determine whether the temperature of the hot milk foam or the hot milk meets the requirement, so as to adjust the rotation speed of the first pump 130 when the hot milk foam or the hot milk is made next time.

Based on the above, the first temperature sensor 170 and the second temperature sensor 180 are electrically connected to the heating device 160, so that it is possible to obtain the hot milk foam or the hot milk according to the desired temperature by controlling the amount of steam intake in addition to controlling the temperature of the obtained hot milk foam or the hot milk by controlling the rotation speed of the first pump 130.

Based on the foregoing, the liquid inlet of the first delivery pipe 120 may be communicated with at least two beverage containers 110, the first delivery pipe 120 is communicated with more than two beverage containers 110, in this embodiment, different beverage containers 110 can provide milk with different tastes to the first delivery pipe 120, the beverage making system in this embodiment further includes a first control valve 192, the first control valve 192 is disposed upstream of the first pump 130, the first control valve 192 is used for controlling the first pump 130 to selectively pump milk in one or more beverage containers 110, specifically, a first control valve 192 is disposed between all beverage containers 110 and the second temperature sensor 180, and the first control valve 192 is used for controlling on-off of a passage between the beverage container 110 and the first pump 130, so that the beverage making system can open one or more passages according to the selection of a user to obtain a single milk beverage or a mixed milk beverage.

It will be appreciated that, in this embodiment, the beverage container 110 is used for storing milk, the beverage making system can open one or more passages according to the selection of the user to obtain a single milk beverage or a mixed milk beverage, however, in other alternative embodiments, the beverage container 110 may also be used for storing other beverages such as juice or vegetable juice, and the beverage making system can open one of the passages according to the selection of the user to obtain a single milk beverage or juice beverage or vegetable juice beverage, and the like, or can open multiple passages according to the selection of the user to obtain a mixed milk beverage or mixed juice or mixed vegetable juice or beverage after any two of milk, juice and vegetable juice are mixed, and the like, which is not limited in this embodiment.

It should be noted that, the milk product making system needs to clean the first conveying pipeline 120 after each beverage making, and the waste water for cleaning the first conveying pipeline 120 needs to be discharged from the waste liquid outlet 1222, so as to avoid affecting the quality and taste of the next beverage due to the smell mixing.

The first control valve 192 is also provided between the first delivery pipe 120 and the cleaning system, and the first pump 130 can suck water from the cleaning system and deliver the water along the first delivery pipe 120, and the heating device 160 can heat the water, so that the portion of the first delivery pipe 120 downstream of the heating device 160 is cleaned with hot water.

Of course, in this embodiment, the heating device 160 may be used to introduce steam into the first conveying line 120, and the steam may be diffused in the first conveying line 120, so as to sterilize the first conveying line 120.

Based on the foregoing, the air inlet device 140 includes a second conveying pipeline 141 and a pulse air valve 142, two ends of the second conveying pipeline 141 are respectively communicated with the first conveying pipeline 120 and the outside, the pulse air valve 142 is disposed on the second conveying pipeline 141, and the pulse air valve 142 is communicated with the first conveying pipeline 120 at any position between the liquid inlet and the pressure changing device 150, in this embodiment, the air amount filled in the first conveying pipeline 120 is controlled by the pulse air valve 142, so as to ensure that the density degree of milk foam meets the requirement.

Illustratively, the communication position of the pulse air valve 142 and the first delivery pipe 120 in the present embodiment is located on the upstream side of the first pump 130 in the delivery direction of the first delivery pipe 120, and in the present embodiment, the outside air is drawn into the first delivery pipe 120 by the first pump 130.

Example two

Referring to fig. 3, compared with the first embodiment, the difference of this embodiment is that: the communication position between the pulse air valve 142 and the first delivery line 120 in this embodiment is located between the first pump 130 and the pressure changing device 150.

In this embodiment, the first conveying pipeline 123 is composed of two sections of pipelines, the two sections of pipelines are communicated through the venturi nozzle 124, the two sections of pipelines are respectively communicated with the first pump 130 and the pressure changing device 150, the pulse air valve 142 is communicated with the passage of the venturi nozzle 124, and negative pressure is generated in the passage of the venturi nozzle 124 when milk flows along the passage of the venturi nozzle 124, so that air is pumped into the first conveying pipeline 120.

It is understood that the venturi nozzle 124 is a specific structure in the prior art, and thus, a detailed description thereof will not be provided in this embodiment.

Example III

Referring to fig. 4, compared with the first embodiment, the difference of the present embodiment is that the air intake device 140 further includes a second pump 143, and the second pump 143 is communicated with the pulse air valve 142, i.e. in the present embodiment, air is filled into the first conveying pipeline 120 through the second pump 143.

Example IV

Referring to fig. 5, compared to the second embodiment, the difference between the present embodiment and the present embodiment is that the air inlet device 140 includes a second pump 143, and the second pump 143 is communicated with a pulse air valve 142, i.e. in the present embodiment, the first pump 130 is connected to the pressure transforming device 150 through a common pipeline, and in the present embodiment, air is filled into the first conveying pipeline 120 through the second pump 143.

Example five

Referring to fig. 6, compared with the first embodiment, the difference of this embodiment is that: in this embodiment, the pulse air valve 142 and the first delivery pipe 120 are connected at two positions, one is located at the upstream side of the first pump 130 along the delivery direction of the first delivery pipe 120, the other is located between the first pump 130 and the pressure changing device 150, the second delivery pipe 141 includes a first branch 1411 and a second branch 1412, the connection position of the first branch 1411 and the first delivery pipe 120 is located at the upstream side of the first pump 130 along the delivery direction of the first delivery pipe 120, the connection position of the second branch 1412 and the first delivery pipe 120 is located between the first pump 130 and the pressure changing device 150, and the first branch 1411 and the second branch 1412 are both provided with a second control valve 193, so that the connection and disconnection of the first branch 1411 and the second branch 1412 can be controlled in this embodiment, thereby controlling the connection position of the pulse air valve 142 and the first delivery pipe 120.

In addition, the air intake device 140 in the present embodiment includes a second pump 143, and the second pump 143 communicates with the pulse air valve 142, so that the air is filled into the first delivery pipe 120 by the second pump 143.

Example six

Referring to fig. 7, compared with the first embodiment, the difference between the present embodiment is that the heating device 160 is communicated with the flow channel of the pressure transformation device 150, and the steam is controllably delivered into the flow channel of the pressure transformation device 150, i.e. in the present embodiment, the pressure transformation device 150 and the heating device 160 are integrated into a module, the steam source 161 of the heating device 160 is communicated with the flow channel of the pressure transformation device 150, and the steam source 161 introduces steam into the flow channel of the pressure transformation device 150 to mix the steam with milk foam, so as to heat the milk foam, preferably, the steam input end of the heating device 160 is disposed near the output end of the pressure transformation device 150, so that the generated milk foam is heated after the air and the milk foam are sufficiently mixed, thereby avoiding uneven mixing of the air and the milk foam due to temperature rise.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (14)

1. A beverage making system, comprising:

a first delivery line (120), wherein a liquid inlet of the first delivery line (120) is communicated with a beverage container (110), a first pump (130) is arranged on the first delivery line (120), and the first pump (130) is configured to extract milk from the beverage container (110) and enable the milk to flow along the first delivery line (120);

an air intake device (140) configured to charge air into the first delivery line (120);

-a pressure varying device (150) arranged on the first delivery line (120), the pressure varying device (150) being configured to mix the milk and the air into milk foam; a kind of electronic device with high-pressure air-conditioning system

-a heating device (160) comprising a steam source (161), the steam source (161) being configured to introduce steam into the first delivery line (120) to mix the milk foam with the steam.

2. The beverage making system according to claim 1, wherein the air inlet means (140) comprises a pulse air valve (142), the pulse air valve (142) being in communication with the first delivery line (120) at any position between the liquid inlet and the pressure transforming means (150).

3. The beverage making system according to claim 2, wherein a communication position of the pulse air valve (142) with the first delivery line (120) is located on an upstream side of the first pump (130) in a delivery direction of the first delivery line (120).

4. The beverage making system of claim 2, wherein a location of communication of the pulse air valve (142) with the first delivery line (120) is between the first pump (130) and the pressure varying device (150).

5. The beverage making system according to claim 3 or 4, wherein the air inlet means (140) further comprises a second pump (143), the second pump (143) being in communication with the pulse air valve (142).

6. The beverage making system according to claim 1, wherein a heating chamber (121) is provided on the first conveying line (120), the heating chamber (121) being located on a downstream side of the pressure transforming device (150) in a conveying direction of the first conveying line (120), the heating device (160) being communicated to the heating chamber (121) and controllably conveying steam to the heating chamber (121).

7. The beverage making system according to claim 6, wherein the heating chamber (121) is provided with a first opening (1211) and a second opening (1212), the first opening (1211) being in communication with the pressure transforming device (150) and the second opening (1212) being in communication with the heating device (160).

8. The beverage making system according to claim 1, wherein the heating device (160) is in communication with the flow path of the pressure changing device (150) and controllably delivers steam into the flow path of the pressure changing device (150).

9. The beverage making system of claim 1, further comprising a first temperature sensor (170), the first temperature sensor (170) being disposed on the first delivery line (120) and between a liquid inlet of the first delivery line (120) and the heating device (160).

10. The beverage making system according to claim 1, further comprising a second temperature sensor (180), the second temperature sensor (180) being arranged on the first conveying line (120) and being located on a downstream side of the heating device (160) in the conveying direction of the first conveying line (120).

11. The beverage making system according to claim 1, wherein the liquid outlet of the first delivery line (120) is provided with a three-way valve (122), the liquid inlet of the three-way valve (122) is in communication with the liquid outlet of the first delivery line (120), and the two liquid outlets of the three-way valve (122) are a beverage outlet (1221) and a waste liquid outlet (1222), respectively.

12. The beverage making system of claim 1, further comprising a controller electrically connected to the air intake device (140) and/or the heating device (160).

13. The beverage making system of claim 1, wherein the first delivery line (120) is in communication with two or more of the beverage containers (110), the beverage making system further comprising a first control valve (192), the first control valve (192) being disposed upstream of the first pump (130), the first control valve (192) being configured to control the first pump (130) to selectively draw milk from one or more of the beverage containers (110).

14. A coffee machine comprising a beverage making system according to any one of claims 1-13.