Waterway system and coffee machine

Abstract

A waterway system and a coffee machine. The coffee machine comprises a brewer (34) and a water output nozzle (11). The waterway system comprises a compressor assembly, a first heat exchanger (6) and a second heat exchanger (7). The compressor assembly is configured to comprise a first refrigerant line (8), a second refrigerant line (9) and a third refrigerant line (10), such that a refrigerant can be switched to the third refrigerant line (10) without shutting down the compressor assembly. The cooling capacity of the refrigerant is released by means of the third refrigerant line (10), enabling a compressor to operate normally for a long time without prolonged refrigerant supply to the first heat exchanger (6) and the second heat exchanger (7), thereby preventing icing of the lines connected to the first heat exchanger (6) and the second heat exchanger (7), and thus achieving a good user experience.

Description

Waterway system and coffee machine TECHNICAL FIELD

[0001] The present application relates to the technical field of waterway systems, in particular to a waterway system and a coffee machine. BACKGROUND

[0002] Currently, products on the market that use a compressor to make ice water first use a relatively long time to cool the water into ice water before use, and even fewer products can make water from 25℃ to 99℃ cold. When the compressor stops for the first time, the compressor needs 3-5 minutes to balance the pressure in the compressor before it can start again. For instant cold products, the time it takes for the compressor to restart causes a poor user experience. If the compressor does not stop for a long time, the temperature of the heat exchanger is too low, which can cause ice to form and block the pipeline connected to the heat exchanger.

[0003] For example, the Chinese invention with publication number CN118021149A discloses a coffee cooling device that uses a compressor to provide cooling medium for a heat exchanger to cool coffee liquid and make cold coffee. If the compressor continues to work, and the heat exchanger intermittently cools the coffee liquid, the pipeline connected to the heat exchanger may freeze and block the pipeline. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a waterway system and a coffee machine to solve the problem of pipeline blockage affecting the use of the coffee machine when the compressor is continuously working.

[0005] The embodiments of the present application adopt the following technical solutions: a waterway system applied to a coffee machine, the coffee machine comprising a brewing device and a water outlet nozzle, a liquid outlet of the brewing device being in communication with the water outlet nozzle, and the waterway system comprising:

[0006] a water tank;

[0007] a water pump, an inlet of which being in communication with the water tank;

[0008] a coffee boiler, an inlet of which being in communication with an outlet of the water pump, and an outlet of the coffee boiler being in communication with a water inlet of the brewing device through a first hot water pipeline;

[0009] a compressor assembly comprising a first refrigerant pipeline, a second refrigerant pipeline and a third refrigerant pipeline, the first and second refrigerant pipelines being used to provide refrigerant, and the third refrigerant pipeline being used to release the cold energy of the refrigerant;

[0010] a first heat exchanger, which is in communication with the first refrigerant pipeline and receives refrigerant from the compressor assembly to cool hot coffee from the brewing device and then provide ice coffee into the water outlet nozzle;

[0011] A second heat exchanger, which is in communication with the second refrigerant pipeline and receives refrigerant from the compressor assembly to cool the hot water from the coffee boiler and provide ice water into the water outlet nozzle.

[0012] The compressor assembly comprises a first refrigerant pipeline, a second refrigerant pipeline and a third refrigerant pipeline. In the case that the compressor assembly does not stop, the cold coal can be switched to the third refrigerant pipeline to release the cold of the refrigerant, so that the compressor can work normally for a long time, and the first heat exchanger and the second heat exchanger are not supplied with refrigerant for a long time, thereby avoiding the freezing of the pipeline connected with the first heat exchanger and the pipeline connected with the second heat exchanger, and improving the user experience.

[0013] In some embodiments, the compressor assembly further comprises:

[0014] A compressor;

[0015] A radiator arranged on the third refrigerant pipeline, the radiator being used for dissipating the cold of the refrigerant;

[0016] A condenser, the air inlet of which is in communication with the air outlet of the compressor;

[0017] A capillary tube, the air inlet of which is in communication with the air outlet of the condenser;

[0018] An electromagnetic valve, the air inlet of which is in communication with the air outlet of the capillary tube; the air outlet of the electromagnetic valve is in communication with the refrigerant inlet of the first heat exchanger through the first refrigerant pipeline to provide refrigerant for the first heat exchanger; the air outlet of the electromagnetic valve is also in communication with the refrigerant inlet of the second heat exchanger through the second refrigerant pipeline to provide refrigerant for the second heat exchanger; and the air outlet of the electromagnetic valve is also in communication with the air inlet of the radiator through the third refrigerant pipeline to dissipate the cold of the refrigerant;

[0019] The refrigerant outlet of the first heat exchanger, the refrigerant outlet of the second heat exchanger and the air outlet of the radiator are respectively in communication with the air return port of the compressor.

[0020] The quick switching of the refrigerant flow path can be realized by switching the electromagnetic valve, thereby avoiding the problem that the pipeline connected with the first heat exchanger and the pipeline connected with the second heat exchanger are frozen and blocked due to the continuous supply of cold to the first heat exchanger or the second heat exchanger in the case that the compressor does not stop.

[0021] In some embodiments, the electromagnetic valve comprises a first three-way electromagnetic valve and a second three-way electromagnetic valve.

[0022] The first port of the first three-way electromagnetic valve is communicated with the gas outlet of the capillary tube; the second port of the first three-way electromagnetic valve is communicated with the first port of the second three-way electromagnetic valve, and the third port of the first three-way electromagnetic valve is communicated with the gas inlet of the radiator on the third refrigerant pipeline;

[0023] The second port of the second three-way electromagnetic valve is communicated with the refrigerant inlet of the first heat exchanger through the first refrigerant pipeline to provide refrigerant for the first heat exchanger; and the third port of the second three-way electromagnetic valve is communicated with the refrigerant inlet of the second heat exchanger through the second refrigerant pipeline to provide refrigerant for the second heat exchanger.

[0024] The first refrigerant pipeline, the second refrigerant pipeline and the third refrigerant pipeline can be quickly switched through the two three-way electromagnetic valves, and the flow direction of the refrigerant of the compressor assembly is quickly adjusted.

[0025] In some embodiments, the electromagnetic valves include a first two-way electromagnetic valve, a second two-way electromagnetic valve and a third two-way electromagnetic valve.

[0026] The gas outlet of the capillary tube is respectively communicated with the first port of the first two-way electromagnetic valve, the first port of the second two-way electromagnetic valve and the first port of the third two-way electromagnetic valve; the second port of the first two-way electromagnetic valve is communicated with the refrigerant inlet of the first heat exchanger through the first refrigerant pipeline to provide refrigerant for the first heat exchanger.

[0027] The second port of the second two-way electromagnetic valve is communicated with the refrigerant inlet of the second heat exchanger through the second refrigerant pipeline to provide refrigerant for the second heat exchanger.

[0028] The second port of the third two-way electromagnetic valve is communicated with the gas inlet of the radiator through the third refrigerant pipeline.

[0029] The first refrigerant pipeline, the second refrigerant pipeline and the third refrigerant pipeline can be quickly switched through the first two-way electromagnetic valve, the second two-way electromagnetic valve and the third two-way electromagnetic valve, and the flow direction of the refrigerant of the compressor assembly is quickly adjusted.

[0030] In some embodiments, the waterway system further includes a first air pump and a first one-way valve.

[0031] The gas outlet of the first air pump is communicated with the first port of the first one-way valve, and the second port of the first one-way valve is communicated with the first coffee pipeline to discharge the coffee in the first coffee pipeline through the water outlet after the ice coffee made through the first coffee pipeline is made.

[0032] After the ice coffee is made, a certain amount of coffee liquid remains in the first coffee pipeline. The first air pump is used to discharge the coffee liquid from the water outlet nozzle, so as to avoid the influence of the coffee liquid on the taste of the coffee made next time, and avoid the ice in the first coffee pipeline from blocking the first coffee pipeline and affecting the liquid outlet of the first heat exchanger.

[0033] In some embodiments, the waterway system further comprises a second air pump and a second check valve;

[0034] The air outlet of the second air pump is in communication with the first pipe opening of the second check valve, and the second pipe opening of the second check valve is in communication with the second hot water pipeline, so that after the ice water made through the second hot water pipeline is made, the water in the second hot water pipeline is discharged through the water outlet nozzle; wherein,

[0035] One end of the second hot water pipeline is in communication with the water outlet of the coffee boiler, and the other end of the second hot water pipeline is in communication with the water outlet nozzle, and the second heat exchanger is arranged on the second hot water pipeline.

[0036] After the ice water is made, a certain amount of water remains in the second hot water pipeline. The second air pump is used to discharge the water from the water outlet nozzle, so as to avoid the influence of the water on the taste of the ice water made next time, and avoid the ice in the second hot water pipeline from blocking the second hot water pipeline and affecting the water outlet of the second heat exchanger.

[0037] In some embodiments, the waterway system further comprises a third hot water pipeline and a steam boiler. One end of the third hot water pipeline is in communication with the water outlet of the coffee boiler, and the other end of the third hot water pipeline is in communication with the water outlet nozzle. The steam boiler is arranged on the third hot water pipeline to reheat the hot water from the coffee boiler. The hot water from the steam boiler is used to provide hot water into the water outlet nozzle.

[0038] The waterway system can provide hot water for the user through the third hot water pipeline, meeting the user's more use requirements.

[0039] In some embodiments, the waterway system further comprises a second coffee pipeline. One end of the second coffee pipeline is in communication with the liquid outlet of the brewing device, and the other end of the second coffee pipeline is in communication with the water outlet nozzle. The hot coffee from the brewing device is used to provide hot coffee into the water outlet nozzle.

[0040] The waterway system can provide hot coffee for the user through the second coffee pipeline, meeting the user's more use requirements.

[0041] In some embodiments, the waterway system further comprises a third three-way valve, a first port of the third three-way valve being in communication with the liquid outlet of the brewer, a second port of the third three-way valve being in communication with the first coffee pipeline, and a third port of the third three-way valve being in communication with the second coffee pipeline.

[0042] The coffee liquid in the brewer can enter the first coffee pipeline or the second coffee pipeline by controlling the opening and closing of the ports of the third three-way valve, facilitating the control of the coffee pipeline and improving the efficiency of the user in making iced coffee or hot coffee.

[0043] The embodiments of the present application further provide a coffee machine comprising the waterway system as described in any of the above embodiments. The coffee machine employing the waterway system described above can keep the compressor continuously working and avoid the problem of pipeline icing, thereby improving the user experience.

[0044] The embodiments of the present application have the following beneficial effects:

[0045] By setting the compressor assembly to comprise the first refrigerant pipeline, the second refrigerant pipeline and the third refrigerant pipeline, the cold coal can be switched to the third refrigerant pipeline under the condition that the compressor assembly does not stop working, and the cold energy of the refrigerant is released through the third refrigerant pipeline, so that the compressor can work normally for a long time, and the first heat exchanger and the second heat exchanger are not supplied with refrigerant for a long time, thereby avoiding the icing of the pipeline connected with the first heat exchanger and the pipeline connected with the second heat exchanger, and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art descriptions. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0047] Fig. 1 is a structural schematic view of the waterway system of the present application;

[0048] Fig. 2 is a structural schematic view of the waterway system of the present application when making iced coffee;

[0049] Fig. 3 is a structural schematic view of the waterway system of the present application when making iced water;

[0050] Fig. 4 is a structural schematic view of the waterway system of the present application when making hot coffee;

[0051] Fig. 5 is a structural schematic view of the waterway system of the present application when making hot water;

[0052] Fig. 6 is a structural schematic diagram of the compressor assembly of the present application providing refrigerant to the first heat exchanger through the first refrigerant line when making iced coffee;

[0053] Fig. 7 is a structural schematic diagram of the compressor assembly of the present application providing refrigerant to the second heat exchanger through the second refrigerant line when making iced water;

[0054] Fig. 8 is a structural schematic diagram of the compressor assembly of the present application releasing refrigeration through the third refrigerant line;

[0055] Fig. 9 is another structural schematic diagram of the compressor assembly of the present application providing refrigerant to the first heat exchanger through the first refrigerant line when making iced coffee;

[0056] Fig. 10 is another structural schematic diagram of the compressor assembly of the present application providing refrigerant to the second heat exchanger through the second refrigerant line when making iced water;

[0057] Fig. 11 is another structural schematic diagram of the compressor assembly of the present application releasing refrigeration through the third refrigerant line.

[0058] Reference signs: 1, water tank; 2, flow meter; 3, water pump; 4, protection valve; 5, coffee boiler; 6, first heat exchanger; 7, second heat exchanger; 8, first refrigerant line; 9, second refrigerant line; 10, third refrigerant line; 11, water outlet nozzle; 12, compressor; 13, radiator; 14, condenser; 15, dryer; 16, capillary; 17, first three-way electromagnetic valve; 18, second three-way electromagnetic valve; 19, first two-way electromagnetic valve; 20, second two-way electromagnetic valve; 21, third two-way electromagnetic valve; 22, first air pump; 23, first one-way valve; 24, first coffee line; 25, second air pump; 26, second one-way valve; 27, first hot water line; 28, second hot water line; 29, third hot water line; 30, steam boiler; 31, second coffee line; 33, third three-way valve; 34, brewer. DETAILED DESCRIPTION

[0059] The various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0060] It is to be understood that various alterations and modifications can be made to the embodiments of the present application. Accordingly, the above description is to be construed as illustrative only and not as limiting of the present application. Other modifications of the present application, as will occur to those skilled in the art, are desired to be protected within the spirit and scope of the present application.

[0061] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0062] These and other characteristics of the present application will become patently apparent as the description proceeds in conjunction with the accompanying drawings, of which:

[0063] It should also be understood that, although the present application has been described in relation to certain specific examples, many other equivalent forms of which will be apparent to those who are skilled in the art.

[0064] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description in conjunction with the accompanying drawings, in which:

[0065] Specific embodiments of the present application are described hereinafter; however, it is to be understood that the application is not limited to the particular embodiments described as other arrangements can be utilized and other changes can be made without departing from the scope of the present application. Accordingly, although specific requirements are discussed in the context of specific examples, those requirements are intended to provide a non-limiting baseline for the application, with a true scope defined by the appended claims. Furthermore, there are many alternative ways of implementing the application. The interconnected elements or features should not be understood as being essential based on their connection, although they can be, and are capable of, producing more cohesive results.

[0066] The specification can use phrases such as "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which can refer to one or more of the same or different embodiments of the application.

[0067] To solve the problems in the background art, the embodiments of the present application provide a waterway system, which is applied to a coffee machine, the coffee machine comprising a brewing device 34 and a water outlet 11, and a liquid outlet of the brewing device 34 communicates with the water outlet 11.

[0068] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5, the waterway system comprises a water tank 1, a water pump 3, a coffee boiler 5, a compressor assembly, a first heat exchanger 6 and a second heat exchanger 7.

[0069] The water tank 1 is used to contain drinking water, and the drinking water in the water tank 1 can be at room temperature. The water in the water tank 1 can be transported to the coffee boiler 5 for heating, then transported to the second heat exchanger 7 for cooling to make ice water, or transported to the brewing device 34 for brewing coffee. The ice water cooled by the second heat exchanger 7 can be directly provided to a user through the water outlet 11. The heated water can be used for brewing hot coffee, or provided to the user through the water outlet 11.

[0070] The water inlet of the water pump 3 is communicated with the water tank 1, so as to pump the water in the water tank 1 to the coffee boiler 5 for heating according to the requirement. A flow meter 2 can be arranged on the connecting pipeline between the water pump 3 and the water tank 1 according to the requirement, for detecting the water volume pumped by the water pump 3. In addition, a protection valve 4 can be arranged at the water outlet of the water pump 3, for limiting the flow and pressure of the water, so as to prevent the pipeline or equipment from being damaged or exploded due to excessive flow and high pressure. Meanwhile, the protection valve 4 can be automatically opened in an emergency, so as to rapidly reduce the pressure of the pipeline or equipment, and improve the safety of the water system.

[0071] The water inlet of the coffee boiler 5 is communicated with the water outlet of the water pump 3, and the water outlet of the coffee boiler 5 is communicated with the water inlet of the brewer 34 through the first hot water pipeline 27, so as to deliver the heated hot water to the brewer 34 for brewing hot coffee.

[0072] The compressor assembly comprises a first refrigerant pipeline 8, a second refrigerant pipeline 9 and a third refrigerant pipeline 10. The compressor assembly is used for providing refrigerant, and delivering the refrigerant to the first heat exchanger 6 through the first refrigerant pipeline 8, delivering the refrigerant to the second heat exchanger 7 through the second refrigerant pipeline 9, and releasing the cold energy of the refrigerant through the third refrigerant pipeline 10.

[0073] Specifically, the first heat exchanger 6 can be communicated with the first refrigerant pipeline 8, and receive the refrigerant from the compressor assembly, so as to cool the hot coffee from the brewer 34 for providing ice coffee through the water outlet 11. That is, if ice coffee is needed, the hot coffee brewed by the brewer 34 needs to be cooled. The compressor assembly provides refrigerant for the cooling of the hot coffee through the first refrigerant pipeline 8, the refrigerant and the hot coffee exchange heat in the first heat exchanger 6, the refrigerant absorbs the heat of the hot coffee, and the hot coffee absorbs the cold energy of the refrigerant and is cooled, and the cooled ice coffee can flow out through the water outlet 11, so as to provide ice coffee for the customer.

[0074] The second heat exchanger 7 is communicated with the second refrigerant pipeline 9, and receives the refrigerant from the compressor assembly, so as to cool the hot water from the coffee boiler 5 for providing ice water through the water outlet 11. That is, the water from the water tank 1 is heated by the coffee boiler 5, and the water is further sterilized. If ice water is needed, the heated water needs to be cooled. The compressor assembly provides refrigerant for the cooling of the hot water through the second refrigerant pipeline 9, the refrigerant and the hot water exchange heat in the second heat exchanger 7, the refrigerant absorbs the heat of the hot water, and the hot water absorbs the cold energy of the refrigerant and is cooled, and the cooled ice water can flow out through the water outlet 11, so as to provide ice water for the customer.

[0075] When the user has no demand for iced coffee and iced water, the refrigerant of the compressor assembly can release the cold of the refrigerant through the third refrigerant pipeline 10 to avoid the compressor assembly continuously providing the refrigerant for the first heat exchanger 6 or the second heat exchanger 7, so as to avoid the problem of icing of the pipeline connected with the first heat exchanger 6 and the pipeline connected with the second heat exchanger 7, and affect the normal use of the first heat exchanger 6 and the second heat exchanger 7.

[0076] The compressor assembly of the embodiment of the application includes the first refrigerant pipeline 8, the second refrigerant pipeline 9 and the third refrigerant pipeline 10. In the case that the compressor assembly does not stop, the cold can be switched to the third refrigerant pipeline 10, the cold of the refrigerant is released through the third refrigerant pipeline 10, the compressor assembly can normally work for a long time, the refrigerant is not supplied to the first heat exchanger 6 and the second heat exchanger 7 for a long time, the problem of icing of the pipeline connected with the first heat exchanger 6 and the pipeline connected with the second heat exchanger 7 is avoided, and the user experience effect is good.

[0077] In some embodiments, the compressor assembly further includes a compressor 12, a radiator 13, a condenser 14, a capillary tube 16 and a solenoid valve.

[0078] The radiator 13 is arranged on the third refrigerant pipeline 10, and is used for dissipating the cold of the refrigerant. Specifically, the refrigerant enters the radiator 13 through the third refrigerant pipeline 10, and releases the cold of the refrigerant through the cooling effect of the radiator 13. The refrigerant passing through the radiator 13 is recycled back to the compressor 12. The third refrigerant pipeline 10 is connected in the case that the first refrigerant pipeline 8 and the second refrigerant pipeline 9 are not connected.

[0079] The gas inlet of the condenser 14 is communicated with the gas outlet of the compressor 12, and is used for condensing the compressed gas.

[0080] The gas inlet of the capillary tube 16 is communicated with the gas outlet of the condenser 14. The capillary tube 16 can be a copper tube with a very small diameter, and the inner diameter thereof is usually between 0.6-2.0 millimeters, and the length thereof is about 800-2000 millimeters. The main function of the capillary tube 16 is to throttle and depress the high-pressure freon refrigerant from the condenser 14 into low-pressure freon refrigerant.

[0081] A dryer 15 can be arranged between the capillary tube 16 and the condenser 14, and is used for drying the refrigerant.

[0082] The electromagnetic valve has an inlet port communicated with the outlet port of the capillary tube 16, an outlet port communicated with the refrigerant inlet of the first heat exchanger 6 through the first refrigerant pipeline 8 to provide refrigerant for the first heat exchanger 6, and an outlet port communicated with the refrigerant inlet of the second heat exchanger 7 through the second refrigerant pipeline 9 to provide refrigerant for the second heat exchanger 7.

[0083] The refrigerant outlet of the first heat exchanger 6, the refrigerant outlet of the second heat exchanger 7, and the outlet port of the radiator 13 are respectively communicated with the return port of the compressor 12 to realize the circulation of the refrigerant. Specifically, the first refrigerant pipeline 8, the second refrigerant pipeline 9, and the third refrigerant pipeline 10 can be communicated through a three-way pipe.

[0084] The embodiment can realize the quick switching of the refrigerant circulation path through the switching of the electromagnetic valve port, and avoid the problem that only the first heat exchanger 6 or the second heat exchanger 7 can be continuously supplied with cold in the case that the compressor 12 does not stop, causing the freezing and blocking of the pipelines connected with the first heat exchanger 6 and the pipelines connected with the second heat exchanger 7.

[0085] In some embodiments, as shown in FIGS. 6, 7, and 8, the electromagnetic valve includes a first three-way electromagnetic valve 17 and a second three-way electromagnetic valve 18.

[0086] The first port of the first three-way electromagnetic valve 17 is communicated with the outlet port of the capillary tube 16, the second port of the first three-way electromagnetic valve 17 is communicated with the first port of the second three-way electromagnetic valve 18, and the third port of the first three-way electromagnetic valve 17 is communicated with the inlet port of the radiator 13 on the third refrigerant pipeline 10.

[0087] The second port of the second three-way electromagnetic valve 18 is communicated with the refrigerant inlet of the first heat exchanger 6 through the first refrigerant pipeline 8 to provide refrigerant for the first heat exchanger 6, and the third port of the second three-way electromagnetic valve 18 is communicated with the refrigerant inlet of the second heat exchanger 7 through the second refrigerant pipeline 9 to provide refrigerant for the second heat exchanger 7.

[0088] When ice coffee needs to be made, the first port of the first three-way electromagnetic valve 17, the second port of the first three-way electromagnetic valve 17, the first port of the second three-way electromagnetic valve 18, and the second port of the second three-way electromagnetic valve 18 are opened, and other ports are closed, so that the refrigerant can enter the first refrigerant pipeline 8 entirely without entering the second refrigerant pipeline 9 and the third refrigerant pipeline 10, thereby improving the efficiency of making ice coffee. When ice water needs to be made, the first port of the first three-way electromagnetic valve 17, the second port of the first three-way electromagnetic valve 17, the first port of the second three-way electromagnetic valve 18, and the third port of the second three-way electromagnetic valve 18 are opened, and other ports of the first three-way electromagnetic valve 17 and the second three-way electromagnetic valve 18 are closed, so that the refrigerant can enter the second refrigerant pipeline 9, and the efficiency of making ice water can be improved in the same way. When cold energy needs to be released, the first port of the first three-way electromagnetic valve 17 and the third port of the first three-way electromagnetic valve 17 are opened, and other ports are closed, so that the refrigerant can enter the third refrigerant pipeline 10.

[0089] This embodiment can realize the rapid switching of the first refrigerant pipeline 8, the second refrigerant pipeline 9, and the third refrigerant pipeline 10 through two three-way electromagnetic valves, thereby realizing the rapid adjustment of the flow direction of the compressor assembly refrigerant.

[0090] In some embodiments, as shown in FIGS. 9, 10, and 11, the electromagnetic valve includes a first two-way electromagnetic valve 19, a second two-way electromagnetic valve 20, and a third two-way electromagnetic valve 21.

[0091] The gas outlet of the capillary tube 16 is in communication with the first port of the first two-way electromagnetic valve 19, the first port of the second two-way electromagnetic valve 20, and the first port of the third two-way electromagnetic valve 21, respectively. The second port of the first two-way electromagnetic valve 19 is in communication with the refrigerant inlet of the first heat exchanger 6 through the first refrigerant pipeline 8, so as to provide the refrigerant for the first heat exchanger 6.

[0092] The second port of the second two-way electromagnetic valve 20 is in communication with the refrigerant inlet of the second heat exchanger 7 through the second refrigerant pipeline 9, so as to provide the refrigerant for the second heat exchanger 7.

[0093] The second port of the third two-way electromagnetic valve 21 is in communication with the gas inlet of the radiator 13 through the third refrigerant pipeline 10, so as to dissipate the cold energy of the refrigerant through the radiator 13.

[0094] When ice coffee needs to be made, the two ports of the first two-way electromagnetic valve 19 are opened, the two ports of the second two-way electromagnetic valve 20 and the two ports of the third two-way electromagnetic valve 21 are closed, so that all the refrigerants can enter the first refrigerant pipeline 8, improving the efficiency of ice coffee making. When ice water needs to be made, the two ports of the second two-way electromagnetic valve 20 are opened, the two ports of the first two-way electromagnetic valve 19 and the two ports of the third two-way electromagnetic valve 21 are closed, so that all the refrigerants can enter the second refrigerant pipeline 9, improving the efficiency of ice water making. When the cold energy of the refrigerant needs to be released, the two ports of the third two-way electromagnetic valve 21 are opened, and the two ports of the first two-way electromagnetic valve 19 and the two ports of the third two-way electromagnetic valve 21 are closed, so that all the refrigerants can enter the third refrigerant pipeline 10, avoiding the influence of the refrigerants on the pipeline connected with the first heat exchanger 6 and the pipeline connected with the second heat exchanger 7.

[0095] This embodiment can realize the rapid switching of the first refrigerant pipeline 8, the second refrigerant pipeline 9 and the third refrigerant pipeline 10 through the first two-way electromagnetic valve 19, the second two-way electromagnetic valve 20 and the third two-way electromagnetic valve 21, and then realize the rapid adjustment of the flow direction of the compressor assembly refrigerant.

[0096] In some embodiments, in combination with FIGS. 1 and 2 again, the waterway system further comprises a first air pump 22 and a first one-way valve 23.

[0097] The air outlet of the first air pump 22 is in communication with the first port of the first one-way valve 23, and the second port of the first one-way valve 23 is in communication with the first coffee pipeline 24. Here, the first coffee pipeline 24 refers to the portion between the first heat exchanger 6 and the brewer 34, so that after the ice coffee made through the first coffee pipeline 24 is made, the coffee in the first coffee pipeline 24 is discharged through the water outlet nozzle 11. After the ice coffee is made, a certain amount of coffee liquid remains in the first coffee pipeline 24, which is discharged from the water outlet nozzle 11 by the air pump, avoiding the influence of this part of coffee liquid on the taste of the coffee made next time, and also avoiding the part of coffee liquid from freezing in the first coffee pipeline 24, blocking the first coffee pipeline 24 and affecting the liquid outlet of the first heat exchanger 6.

[0098] In some embodiments, in combination with FIGS. 1 and 3 again, the waterway system further comprises a second air pump 25 and a second one-way valve 26.

[0099] The outlet of the second air pump 25 is communicated with the first port of the second check valve 26, and the second port of the second check valve 26 is communicated with the second hot water pipeline 28, so that the water in the second hot water pipeline 28 is discharged through the water outlet nozzle 11 after the ice water made through the second hot water pipeline 28 is made. The second hot water pipeline 28 is communicated with the water outlet of the coffee boiler 5 at one end and communicated with the water outlet nozzle 11 at the other end, and the second heat exchanger 7 is arranged on the second hot water pipeline 28. After the ice water is made, a certain amount of water is still left in the second hot water pipeline 28, which is discharged from the water outlet nozzle 11 through the second air pump 25, so as to avoid the influence of the water on the taste of the ice water made next time and avoid the water in the second hot water pipeline 28 from freezing and blocking the second hot water pipeline 28 and affecting the water outlet of the second heat exchanger 7.

[0100] The arrangement of the first check valve 23 and the second check valve 26 can avoid the water in the pipeline from flowing back to the first air pump 22 or the second air pump 25, thereby avoiding the damage of the first air pump 22 and the second air pump 25.

[0101] In some embodiments, in combination with FIGS. 1 and 5 again, the waterway system further comprises a third hot water pipeline 29 and a steam boiler 30, one end of the third hot water pipeline 29 is communicated with the water outlet of the coffee boiler 5, and the other end of the third hot water pipeline 29 is communicated with the water outlet nozzle 11. The steam boiler 30 is arranged on the third hot water pipeline 29 to reheat the hot water from the coffee boiler 5, further increase the temperature of the hot water from the steam boiler 30, so that the hot water from the steam boiler 30 is used to provide hot water into the water outlet nozzle 11. The waterway system can provide hot water for the user through the third hot water pipeline 29, thereby meeting more use requirements of the user.

[0102] In some embodiments, in combination with FIGS. 1 and 4 again, the waterway system further comprises a second coffee pipeline 31, one end of the second coffee pipeline 31 is communicated with the liquid outlet of the brewing device 34, and the other end of the second coffee pipeline 31 is communicated with the water outlet nozzle 11. The hot coffee from the brewing device 34 is used to provide hot coffee into the water outlet nozzle 11. The second coffee pipeline 31 and the first coffee pipeline 24 can be connected through a three-way electromagnetic valve, and according to the needs of the user for hot coffee or ice coffee, the corresponding port of the three-way electromagnetic valve is selected to be opened, so that the hot coffee brewed by the brewing device 34 can enter the first coffee pipeline 24 or the second coffee pipeline 31 according to the needs.

[0103] The waterway system can provide hot coffee for the user through the second coffee pipeline 31, thereby meeting more use requirements of the user.

[0104] In some embodiments, the three-way electromagnetic valve between the first coffee pipeline 24 and the second coffee pipeline 31 is a third three-way valve 33. The first port of the third three-way valve 33 is in communication with the liquid outlet of the brewer 34, the second port of the third three-way valve 33 is in communication with the first coffee pipeline 24, and the third port of the third three-way valve 33 is in communication with the second coffee pipeline 31. By controlling the opening and closing of the ports of the third three-way valve 33, the coffee liquid in the brewer 34 can be made to enter the first coffee pipeline 24 or the second coffee pipeline 31, facilitating the control of the coffee pipeline and improving the efficiency of the user in making iced coffee or hot coffee.

[0105] The embodiments of the present application also provide a coffee machine, which comprises the water pipeline system according to any one of the above embodiments. The coffee machine adopts the water pipeline system described above, which can keep the compressor 12 working continuously and avoid the problem of pipeline icing, thereby improving the user experience.

[0106] The above describes in detail the embodiments of the present application, but the present application is not limited to these specific embodiments. Those skilled in the art can make various modifications and embodiments on the basis of the concept of the present application, and these modifications and embodiments shall fall within the scope of the present application.

[0107] The above describes in detail the embodiments of the present application, but the present application is not limited to these specific embodiments. Those skilled in the art can make various modifications and embodiments on the basis of the concept of the present application, and these modifications and embodiments shall fall within the scope of the present application.

Claims

1. Water circuit for a coffee machine comprising a brewer (34) and a water outlet spout (11), the outlet of the brewer (34) communicating with the water outlet spout (11), characterized in that, The water system comprises: a water tank (1); a water pump (3) having a water inlet communicated with the water tank (1); a coffee boiler (5) having a water inlet communicated with a water outlet of the water pump (3), and having a water outlet communicated with a water inlet of the brewer (34) through a first hot water pipe (27); a compressor assembly comprising a first refrigerant pipe (8) and a second refrigerant pipe (9) for providing refrigerant, and a third refrigerant pipe (10) for releasing cold energy of the refrigerant; a first heat exchanger (6) communicated with the first refrigerant pipe (8) and receiving refrigerant from the compressor assembly to cool hot coffee from the brewer (34) and then provide ice coffee into the water outlet nozzle (11); a second heat exchanger (7) communicated with the second refrigerant pipe (9) and receiving refrigerant from the compressor assembly to cool hot water from the coffee boiler (5) and then provide ice water into the water outlet nozzle (11).

2. The waterway system of claim 1, wherein, The compressor assembly further comprises: a compressor (12); a radiator (13) arranged on the third refrigerant pipe (10) and used for dissipating cold energy of the refrigerant; a condenser (14) having an air inlet communicated with an air outlet of the compressor (12); a capillary tube (16) having an air inlet communicated with an air outlet of the condenser (14); a solenoid valve having an air outlet communicated with the air outlet of the capillary tube (16), an air inlet of the first heat exchanger (6) communicated with the solenoid valve through the first refrigerant pipe (8) to provide refrigerant for the first heat exchanger (6), an air inlet of the second heat exchanger (7) communicated with the solenoid valve through the second refrigerant pipe (9) to provide refrigerant for the second heat exchanger (7), and an air inlet of the radiator (13) communicated with the solenoid valve through the third refrigerant pipe (10) to dissipate cold energy of the refrigerant; an air outlet of the first heat exchanger (6), an air outlet of the second heat exchanger (7), and an air outlet of the radiator (13) are respectively communicated with a back air inlet of the compressor (12).

3. The waterway system of claim 2, wherein, The solenoid valve comprises a first three-way solenoid valve (17) and a second three-way solenoid valve (18); a first pipe opening of the first three-way solenoid valve (17) is communicated with the air outlet of the capillary tube (16), a second pipe opening of the first three-way solenoid valve (17) is communicated with a first pipe opening of the second three-way solenoid valve (18), and a third pipe opening of the first three-way solenoid valve (17) is communicated with the air inlet of the radiator (13) on the third refrigerant pipe (10). The second pipe port of the second three-way electromagnetic valve (18) is communicated with the refrigerant inlet of the first heat exchanger (6) through the first refrigerant pipeline (8) to provide refrigerant for the first heat exchanger (6); the third pipe port of the second three-way electromagnetic valve (18) is communicated with the refrigerant inlet of the second heat exchanger (7) through the second refrigerant pipeline (9) to provide refrigerant for the second heat exchanger (7).

4. The water routing system of claim 2, wherein, The electromagnetic valve comprises a first two-way electromagnetic valve (19), a second two-way electromagnetic valve (20) and a third two-way electromagnetic valve (21); The gas outlet of the capillary (16) is communicated with the first pipe port of the first two-way electromagnetic valve (19), the first pipe port of the second two-way electromagnetic valve (20) and the first pipe port of the third two-way electromagnetic valve (21) respectively, the second pipe port of the first two-way electromagnetic valve (19) is communicated with the refrigerant inlet of the first heat exchanger (6) through the first refrigerant pipeline (8) to provide refrigerant for the first heat exchanger (6); The second pipe port of the second two-way electromagnetic valve (20) is communicated with the refrigerant inlet of the second heat exchanger (7) through the second refrigerant pipeline (9) to provide refrigerant for the second heat exchanger (7); The second pipe port of the third two-way electromagnetic valve (21) is communicated with the gas inlet of the radiator (13) through the third refrigerant pipeline (10).

5. The waterway system of claim 1, wherein, The water system further comprises a first air pump (22) and a first one-way valve (23); The gas outlet of the first air pump (22) is communicated with the first pipe port of the first one-way valve (23), the second pipe port of the first one-way valve (23) is communicated with the first coffee pipeline (24) to discharge the coffee in the first coffee pipeline (24) through the water outlet nozzle (11) after the ice coffee made through the first coffee pipeline (24) is made.

6. The waterway system of claim 1, wherein The water system further comprises a second air pump (25) and a second one-way valve (26); The gas outlet of the second air pump (25) is communicated with the first pipe port of the second one-way valve (26), the second pipe port of the second one-way valve (26) is communicated with the second hot water pipeline (28) to discharge the water in the second hot water pipeline (28) through the water outlet nozzle (11) after the ice water made through the second hot water pipeline (28) is made; wherein, One end of the second hot water pipeline (28) is communicated with the water outlet of the coffee boiler (5), the other end of the second hot water pipeline (28) is communicated with the water outlet nozzle (11), and the second heat exchanger (7) is arranged on the second hot water pipeline (28).

7. The waterway system of claim 1, wherein The water system further comprises a third hot water pipeline (29) and a steam boiler (30), one end of the third hot water pipeline (29) is communicated with the water outlet of the coffee boiler (5), the other end of the third hot water pipeline (29) is communicated with the water outlet nozzle (11), and the steam boiler (30) is arranged on the third hot water pipeline (29) to reheat the hot water from the coffee boiler (5), and the hot water from the steam boiler (30) is used to enter the water outlet nozzle (11) to provide hot water.

8. The water routing system of claim 5, wherein, The waterway system further comprises a second coffee pipe (31), one end of the second coffee pipe (31) being in communication with the liquid outlet of the brewer (34), the other end of the second coffee pipe (31) being in communication with the water outlet nozzle (11), hot coffee from the brewer (34) being used to enter the water outlet nozzle (11) to provide hot coffee.

9. The water routing system of claim 8, wherein, The waterway system further comprises a third three-way valve (33), a first pipe port of the third three-way valve (33) being in communication with the liquid outlet of the brewer (34), a second pipe port of the third three-way valve (33) being in communication with the first coffee pipe (24), a third pipe port of the third three-way valve (33) being in communication with the second coffee pipe (31).

10. A coffee maker characterized in that, A coffee maker comprising a waterway system as claimed in any one of claims 1 to 9.

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