Waterway structure of coffee machine

Abstract

The utility model discloses a waterway structure of a coffee machine, which comprises a water supply waterway, a brewing waterway and a steam waterway, the water supply waterway supplies water to the brewing waterway and the steam waterway, the brewing waterway outputs hot water to a coffee brewing system, the steam waterway is provided with a steam cooker, and steam generated by the steam cooker is output to a milk foaming system. An outlet of the water supply waterway is communicated with an inlet of the three-way shunt valve, an inlet of the steam waterway is communicated with a first outlet of the three-way shunt valve, an inlet of the brewing waterway is communicated with a second outlet of the three-way shunt valve, and a first one-way valve is arranged on a fluid path between the first outlet of the three-way shunt valve and the steam cooker. According to the utility model, the one-way valve is arranged between the inlet of the steam pipeline and the steam cooker, so that condensed water in the steam pipeline is prevented from flowing back into the brewing pipeline, the influence of the condensed water on the accuracy of water temperature and water quantity during subsequent coffee brewing is avoided, and the coffee brewing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage machines, in particular to a water channel structure of a coffee machine. Background Art

[0002] As the coffee drinking experience continues to improve, people are accustomed to adding milk foam to brewed coffee. Therefore, the function of brewing coffee and making milk foam has become the mainstream function configuration of current coffee machines.

[0003] In order to better achieve the above functions, coffee machines often have a brewing water circuit for producing hot water for brewing coffee and a steam water circuit for producing steam for making milk froth separately, so that brewing coffee and making milk froth can be carried out simultaneously without affecting each other.

[0004] CN206995094U discloses a water system of a coffee machine, including a water tank, a water pump, a milk froth making module, a coffee making module, a hot water making module and a wastewater collection device, wherein the water tank is connected to the water pump via a flow meter, the water pump is connected to the milk froth making module and the hot water making module respectively via a throttle valve, the hot water making module is connected to the coffee making module, and the wastewater collection device is connected to the milk froth making module and the coffee making module respectively. In this technical solution, after the milk froth making is completed, the steam remaining in the steam pipeline is cooled and condensed into water. Since the steam pipeline and the brewing pipeline are connected, the condensed water flows into the brewing pipeline, which will cause the water temperature and water volume to be inaccurate when brewing coffee later. Utility Model Content

[0005] The utility model aims to provide a water channel structure of a coffee machine, which solves the problem that the steam remaining in the steam pipeline cools and condenses into water after the milk foam is made, and since the steam pipeline and the brewing pipeline are connected, the condensed water flows into the brewing pipeline, which causes the inaccuracy of water temperature and water amount in the subsequent brewing of coffee, so as to overcome the shortcomings of the prior art.

[0006] The utility model provides a water channel structure of a coffee machine through the following technical scheme, comprising a water supply channel, a brewing water channel and a steam water channel, the water supply channel supplies water to the brewing water channel and the steam water channel, the brewing water channel outputs hot water to a coffee brewing system, the steam water channel is provided with a steam cooker, the steam generated by the steam cooker is output to a milk frothing system, the outlet of the water supply channel is communicated with the inlet of a three-way water dividing valve, the inlet of the steam water channel is communicated with the first outlet of the three-way water dividing valve, the inlet of the brewing water channel is communicated with the second outlet of the three-way water dividing valve, and a first one-way valve is provided on a fluid path between the first outlet of the three-way water dividing valve and the steam cooker.

[0007] Furthermore, a second one-way valve is provided on the fluid path between the second outlet of the three-way water diversion valve and the coffee brewing system.

[0008] Furthermore, a hot water boiler is provided on the fluid path between the outlet of the water supply circuit and the inlet of the three-way water diversion valve.

[0009] Furthermore, a hot water kettle is provided on the fluid path between the second outlet of the three-way water diversion valve and the second one-way valve.

[0010] Furthermore, the water supply circuit includes a water tank, a flow meter, a water pump and a protection valve connected in sequence.

[0011] Furthermore, a solenoid valve is provided on the fluid path between the steam cooker and the milk frothing system.

[0012] The utility model has the following beneficial effects: a one-way valve is arranged between the inlet of the steam pipeline and the steam cooker to prevent condensed water in the steam pipeline from flowing back into the brewing pipeline, thereby avoiding the influence of condensed water on the accuracy of water temperature and water volume during subsequent coffee brewing, and improving the quality of coffee brewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of Example 1 of the water channel structure of a coffee machine described in the utility model.

[0014] Figure 2 This is a schematic diagram of Example 2 of the water channel structure of a coffee machine described in the utility model.

[0015] in, Figure 1 to Figure 2 The corresponding relationship between the reference numerals and component names in the figure is:

[0016] 1 Water supply circuit, 2 Brewing water circuit, 3 Steam water circuit, 4 Coffee brewing system, 5 Steam pot, 6 Milk frothing system, 7 Three-way water diverter valve, 8 First check valve, 9 Second check valve, 10 Hot water pot, 11 Water tank, 12 Water pump, 13 Flow meter, 14 Protection valve, 15 Solenoid valve. DETAILED DESCRIPTION

[0017] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0018] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0019] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] Refer to the following Figure 1-Figure 2 A water channel structure of a coffee machine according to some embodiments of the present application is described.

[0023] A water channel structure of a coffee machine includes a water supply channel 1, a brewing channel 2 and a steam channel 3, wherein the water supply channel 1 supplies water to the brewing channel 2 and the steam channel 3, the brewing channel 2 outputs hot water to the coffee brewing system 4 for coffee brewing, and a steam cooker 5 is provided in the steam channel 3, the steam cooker 5 heats the water entering the steam channel 3 into steam and outputs it to the milk frothing system 6 for making milk froth. The water supply channel 1 is connected to the brewing channel 2 and the steam channel 3 through a three-way water dividing valve 7, wherein the outlet of the water supply channel 1 is connected to the inlet of the three-way water dividing valve 7, the inlet of the steam water channel 3 is connected to the first outlet of the three-way water dividing valve 7, and the inlet of the brewing channel 2 is connected to the second outlet of the three-way water dividing valve 7.

[0024] A first one-way valve 8 is provided on the fluid path between the first outlet of the three-way water diverter valve 7 and the steam cooker 5. When the milk froth making is finished, the steam cooker stops heating, and the remaining steam in the pipeline and the steam cooker 5 gradually cools down and condenses into water. Due to the reverse cut-off effect of the first one-way valve 8, the condensed water cannot flow back to the brewing water path 2 through the first one-way valve 8.

[0025] A second one-way valve 9 is provided on the fluid path between the second outlet of the three-way water diverter valve 7 and the coffee brewing system 4. The second one-way valve 9 can appropriately increase the pressure of hot water entering the coffee brewing system 4, thereby improving the extraction effect of coffee.

[0026] Since the first one-way valve 8 and the second one-way valve 9 have different functions, they have different opening pressures. The opening pressure of the first one-way valve 8 is 1-2 kgf, and the opening pressure of the second one-way valve 9 is 7-8 kgf.

[0027] In Example 1, the hot water kettle 10 that provides the required hot water to the coffee brewing system 4 is arranged on the fluid path between the outlet of the water supply waterway 1 and the inlet of the three-way water diverter valve 7. The hot water generated by the hot water kettle 10 can flow into the brewing waterway 2 through the three-way water diverter valve 7, and can also flow into the steam waterway 3 through the three-way water diverter valve 7. At this time, since the water entering the steam waterway 3 is already hot water, the time for the steam kettle 5 to heat and generate steam is reduced, thereby improving the efficiency of steam generation.

[0028] In Example 2, the hot water kettle 10 that provides the required hot water to the coffee brewing system 4 is arranged on the fluid path between the second outlet of the three-way water diverter valve 7 and the second one-way valve 9. The hot water produced by the hot water kettle 10 is only provided to the coffee brewing system 4 for coffee brewing, thereby ensuring the stability of the brewing process.

[0029] The water supply circuit 1 includes a water tank 11, a flow meter 13, a water pump 12 and a protection valve 14 connected in sequence. The water pump 12 cooperates with the flow meter 13 to extract the amount of water required for brewing from the water tank 11, and the protection valve 14 opens to return water to the water tank to release the excessive pressure when the water pressure in the water supply circuit 1 is too high.

[0030] A solenoid valve 15 is provided on the fluid path between the steam cooker 5 and the milk frothing system 6, which opens when the steam generated by the steam cooker 5 reaches a certain pressure, making it easier to produce milk froth with rich foam.

[0031] The first one-way valve 8 and the second one-way valve 9 can be independent components arranged on the corresponding pipeline, or can be integrated with the three-way water diverter valve 7. In the present technical solution, the first one-way valve 8 is integrated at the first outlet of the three-way water diverter valve 7, and the second one-way valve 9 is integrated at the second outlet of the three-way water diverter valve 7.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water channel structure of a coffee machine, comprising a water supply channel, a brewing channel and a steam channel, wherein the water supply channel supplies water to the brewing channel and the steam channel, the brewing channel outputs hot water to a coffee brewing system, and the steam channel is provided with a steam cooker, and the steam generated by the steam cooker is output to a milk frothing system, characterized in that: The outlet of the water supply circuit is connected to the inlet of the three-way water diverter valve, the inlet of the steam water circuit is connected to the first outlet of the three-way water diverter valve, the inlet of the brewing water circuit is connected to the second outlet of the three-way water diverter valve, and a first one-way valve is provided on the fluid path between the first outlet of the three-way water diverter valve and the steam cooker.

2. The water channel structure of a coffee machine according to claim 1, characterized in that: A second one-way valve is provided on the fluid path between the second outlet of the three-way water diversion valve and the coffee brewing system.

3. The water channel structure of a coffee machine according to claim 2, characterized in that: A hot water kettle is arranged on the fluid path between the outlet of the water supply channel and the inlet of the three-way water diversion valve.

4. The water channel structure of a coffee machine according to claim 2, characterized in that: A hot water kettle is provided on the fluid path between the second outlet of the three-way water diversion valve and the second one-way valve.

5. The water channel structure of a coffee machine according to claim 1, characterized in that: The water supply circuit comprises a water tank, a flow meter, a water pump and a protection valve which are connected in sequence.

6. A water channel structure of a coffee machine according to any one of claims 1 to 5, characterized in that: A solenoid valve is provided on the fluid path between the steam cooker and the milk frothing system.

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