CN111568204A

CN111568204A - Waterway system of coffee machine

Info

Publication number: CN111568204A
Application number: CN202010494635.7A
Authority: CN
Inventors: 毛海燕
Original assignee: Suzhou DrCoffee System Technology Co ltd
Current assignee: Suzhou DrCoffee System Technology Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-08-25
Also published as: WO2021244128A1

Abstract

The invention discloses a waterway system of a coffee machine, which comprises: the coffee making device comprises a first hot water loop, a second hot water loop, a coffee making loop and a milk foam making loop, wherein the first hot water loop comprises a water tank, a first two-way electromagnetic valve, a first flowmeter, a first water pump, a first heating device and a second two-way electromagnetic valve; the second hot water loop comprises a water tank, a first two-way electromagnetic valve, a second flowmeter, a second water pump, a second heating device and a fifth two-way electromagnetic valve; the coffee making loop comprises a water tank, a first two-way electromagnetic valve, a second flowmeter, a second water pump, a second heating device, a second one-way valve and a coffee brewing device; the milk foam production loop comprises a water tank, a first two-way electromagnetic valve, a first flowmeter, a first water pump, a first heating device, a fourth two-way electromagnetic valve and a milk heating device which are sequentially connected. The coffee machine waterway system provided by the invention is controlled by the full electromagnetic valve, so that the stability of the coffee machine waterway system is improved, and the risk of water leakage fault of the waterway system is reduced.

Description

Waterway system of coffee machine

Technical Field

The invention relates to the technical field of coffee machines, in particular to a waterway system of a coffee machine.

Background

Coffee becomes one of the most important drinks of modern people, American coffee is a popular coffee type, the production of American coffee by a full-automatic coffee machine on the market at present is generally realized by prolonging the time of hot water passing coffee powder, however, the coffee taste is influenced by brewing the coffee powder by the hot water for a long time, and the caffeine content is high, so that the coffee is not beneficial to human health; still some full-automatic coffee machines are on the basis of doing the Italian coffee, go out the hot water from the hot water return circuit alone and dilute the Italian coffee concentration, like this also can influence the taste of American coffee, has still reduced American coffee and has gone out the cup efficiency simultaneously. The full-automatic coffee machine waterway system on the market is mostly through dividing to the valve control switching water route, and this kind of mechanical control, long-time friction easily appear trouble such as leaking, and switching time can influence the drink and go out cup efficiency, and full-automatic coffee machine on the market is when making milk coffee, generally makes coffee earlier and makes milk or makes coffee after making milk first, then stirs edible, and the preparation influences milk coffee and goes out cup efficiency like this.

Disclosure of Invention

The invention mainly solves the technical problem of providing a waterway system of a coffee machine, which is controlled by a full-electromagnetic valve, is safer and more stable and has higher efficiency compared with the waterway system of the coffee machine on the market, and solves the problems that the waterway of the full-automatic coffee machine on the market is controlled by a branch valve, the efficiency of making drinks and discharging the drinks is influenced, and the use quality of the full-automatic coffee machine is influenced.

In order to solve the technical problems, the invention adopts a technical scheme that: a waterway system of a coffee maker, comprising: the coffee making device comprises a first hot water loop, a second hot water loop, a coffee making loop and a milk foam making loop, wherein the first hot water loop comprises a water tank, a first two-way electromagnetic valve, a first flowmeter, a first water pump, a first heating device and a second two-way electromagnetic valve which are sequentially connected; the second hot water loop comprises a water tank, a first two-way electromagnetic valve, a second flowmeter, a second water pump, a second heating device and a fifth two-way electromagnetic valve which are connected in sequence; hot water flowing out of the outlet of the second two-way solenoid valve and hot water flowing out of the outlet of the fifth two-way solenoid valve are converged to a total hot water outlet; the coffee making loop comprises a water tank, a first two-way electromagnetic valve, a second flowmeter, a second water pump, a second heating device, a second one-way valve and a coffee brewing device which are connected in sequence; milk foam preparation return circuit is including the water tank, first two-way solenoid valve, first flowmeter, first water pump, first heating device, fourth two-way solenoid valve and the milk heating device that connect gradually, milk heating device's all the way is connected with check valve and air pump, and another way is connected with the storage milk container.

In a preferred embodiment of the present invention, the milk foam production circuit further comprises a third two-way solenoid valve connected to the first heating device, and the third two-way solenoid valve is connected to the waste water collector to release excess water vapor pressure in the milk foam production circuit to the waste water collector.

In a preferred embodiment of the invention, a pinch valve is arranged on the pipeline between the milk storage container and the milk heating device.

In a preferred embodiment of the invention, the milk heating device further comprises a three-way electromagnetic valve connected with the first water pump, and when a first inlet and a second outlet of the three-way electromagnetic valve are communicated, the three-way electromagnetic valve is communicated with the milk heating device; when the first inlet and the third outlet of the three-way electromagnetic valve are communicated, the three-way electromagnetic valve is communicated with the second hot water loop to provide cold water into the second hot water loop so as to make the ice coffee.

In a preferred embodiment of the present invention, when the first inlet of the three-way solenoid valve is communicated with the second outlet, the three-way solenoid valve provides cold water for cleaning the residual milk to the milk heating device.

In a preferred embodiment of the present invention, when the first inlet and the third outlet of the three-way solenoid valve are communicated, the three-way solenoid valve is connected to the first check valve, and the water passing through the first check valve finally flows to the total hot water outlet.

In a preferred embodiment of the present invention, after the coffee making in the coffee making circuit is finished, the pressure relief valve arranged in the coffee brewing device is driven by the stepping motor to discharge the waste water to the waste water collecting device.

The invention has the beneficial effects that: compared with the prior art, the waterway system of the coffee machine is controlled by the full-electromagnetic valve, so that the waterway system of the coffee machine is safer and more stable and has higher efficiency compared with the waterway system of the coffee machine on the market, and the difficult problems that the efficiency of making the beverage and discharging the cup is influenced and the use quality of the full-automatic coffee machine is influenced because the diversion valve controls the loop of the full-automatic coffee machine on the market are solved; the problem that coffee and hot water cannot be discharged simultaneously when the full-automatic coffee machine on the market is used for making American coffee is solved, the taste of the American coffee is guaranteed, coffee factors cannot be extracted excessively, and the health of a human body is guaranteed; the problem that coffee and milk cannot be discharged simultaneously when milk and coffee drinks are prepared by a full-automatic coffee machine in the market is solved, and the milk and coffee cup discharging efficiency of the coffee machine for preparing milk and coffee is improved; the invention provides a scheme for making iced American coffee, which enriches the beverage types of coffee machines and meets the market demand; the invention provides a scheme for automatically cleaning a milk system, so that the coffee machine can clean the milk system in time, and the internal cleanness of the coffee machine is ensured without breeding bacteria.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic view of a water circuit system of a coffee maker according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention includes: a waterway system of a coffee maker, comprising: the coffee making device comprises a first hot water loop, a second hot water loop, a coffee making loop and a milk foam making loop, wherein the first hot water loop comprises a water tank 1, a first two-way electromagnetic valve 2, a first flowmeter 3, a first water pump 4, a first heating device 5 and a second two-way electromagnetic valve 6 which are sequentially connected; the second hot water loop comprises a water tank 1, a first two-way electromagnetic valve 2, a second flowmeter 17, a second water pump 18, a second heating device 19 and a fifth two-way electromagnetic valve 20 which are connected in sequence; the hot water flowing out of the outlet of the second two-way solenoid valve and the hot water flowing out of the outlet of the fifth two-way solenoid valve are converged to a total hot water outlet 23; the coffee making loop comprises a water tank 1, a first two-way electromagnetic valve 2, a second flowmeter 17, a second water pump 18, a second heating device 19, a second one-way valve 21 and a coffee brewing device 22 which are connected in sequence; the milk foam making loop comprises a water tank 1, a first two-way electromagnetic valve 2, a first flow meter 3, a first water pump 4, a first heating device 5, a fourth two-way electromagnetic valve 9 and a milk heating device 12 which are sequentially connected, one way of the milk heating device is connected with a check valve 10 and an air pump 11, the other way of the milk heating device is connected with a milk storage container 13, a pipeline between the milk storage container and the milk heating device is provided with a pinch valve 14, the milk foam making loop further comprises a third two-way electromagnetic valve 7 connected with the first heating device, the third two-way electromagnetic valve is connected with a waste water collector 8, and redundant water vapor pressure in the milk foam making loop can be released into the waste water collector.

Specifically, the milk foam making circuit comprises a third two-way electromagnetic valve 7 connected with the first heating device 5, the third two-way electromagnetic valve can release the pressure of redundant water vapor into a waste water collecting device 8, the redundant water vapor flows to a milk heating device 12 through a fourth two-way electromagnetic valve 9 which is electrified, an air pump 11 sucks air through a check valve 10 to lead to the milk heating device 12 when milk foam is made, and milk flows to the milk heating device 12 from a milk storage container 13 through a pinch valve 14; when the second two-way solenoid valve 6 is energized, the hot water in the first heating device flows to the total hot water outlet 23, and when the fifth two-way solenoid valve 20 connected to the second heating device 19 is energized, the hot water flows to the total hot water outlet.

Furthermore, the waterway system of the invention also comprises a three-way electromagnetic valve 15 connected with the first water pump, when a first inlet 151 and a second outlet 152 of the three-way electromagnetic valve are communicated, the three-way electromagnetic valve is communicated with the milk heating device and provides cold water for cleaning the residual milk for the milk heating device; when the first inlet 151 and the third outlet 153 of the three-way solenoid valve are communicated, the three-way solenoid valve is connected to the first check valve 16, and the water passing through the first check valve finally flows to the total hot water outlet 23 to provide cold water to the second hot water circuit to make iced coffee.

When the first inlet 151 and the third outlet 153 are connected, the three-way solenoid valve 15 connected to the first water pump 4 may guide cold water to the total hot water outlet through the first check valve 16 connected to the three-way solenoid valve 15, for making iced coffee; when coffee is made, the second one-way valve 21 connected with the second heating device 19 can guide hot water into the coffee brewing device 22, then the coffee flows out of the coffee brewing device 22 to the coffee cup 25, and after the coffee is made, a pressure relief valve arranged in the coffee brewing device discharges waste water into the waste water collecting device under the driving of the stepping motor.

The waterway system of the coffee machine of the invention is more flexible, convenient and efficient when making drinks, and can be explained from the following functions:

a. method of making espresso and flow direction of water:

the water flows into the coffee cup through the pipeline after passing through the water tank 1, the first two-way electromagnetic valve 2, the second flowmeter 17, the second water pump 18, the second heating device 19, the second one-way valve 21 and the coffee brewing device 22; only the first two-way electromagnetic valve 2 is electrified to communicate the inlet 21 with the outlet 22 in the manufacturing process, and after the manufacturing is finished, the stepping motor is electrified to drive the pressure release valve embedded in the coffee brewing device 22 to discharge the waste water to the waste water collecting device 8.

b. Method for making american coffee and flow direction of water:

wherein the American coffee making process is consistent with the Italian coffee making process; the water flows to the main hot water outlet through the water tank 1, the first two-way electromagnetic valve 2, the first flow meter 3, the first water pump 4, the first heating device 5 and the second two-way electromagnetic valve 6, because the waterway system of the invention has two heating devices, can provide hot water to a plurality of circuits at the same time, wherein the first heating device 5 can provide vapor and hot water, the second heating device 19 can provide hot water to the second hot water circuit module and the coffee making circuit module, the hot water for making Italian coffee in the water circuit system of the invention comes from the second heating device 5 and the supplemented hot water comes from the first heating device 19 when making American coffee, and comes from different heating devices, therefore, on the basis of not lengthening the time for making drinks, the coffee and the hot water can be made at the same time to make American coffee, thereby improving the cup-making efficiency of American coffee, the taste of American coffee is guaranteed, and meanwhile, coffee factors are not excessively extracted, so that the health degree of the beverage is guaranteed.

In the manufacturing process, the first two-way electromagnetic valve 2 is electrified, so that the inlet 21 and the outlet 22 of the first two-way electromagnetic valve are communicated to supply water to the two heating device loops, the second two-way electromagnetic valve 6 is electrified, so that the inlet 61 and the outlet 62 of the second two-way electromagnetic valve are communicated, and hot water in the first heating device 5 is supplied to the total hot water outlet.

After the manufacturing is finished, the stepping motor is electrified to drive the pressure release valve embedded in the coffee brewing device 22 to discharge the waste water to the waste water collecting device 8.

c. Method of making iced american coffee and flow direction of water:

making iced american coffee is similar to making american coffee in that the coffee making circuit is identical to the espresso making process except that the hot water circuit of the american coffee is changed to a cold water circuit with the flow direction of the cold water circuit water: water flows to a main hot water outlet through the water tank 1, the first two-way electromagnetic valve 2, the first flowmeter 3, the first water pump 4, the three-way electromagnetic valve 15 and the first one-way valve 16 and then flows to the coffee cup 24 containing ice blocks.

In the process of making, only the first two-way solenoid valve 2 is electrified, so that the inlet 21 and the outlet 22 of the first two-way solenoid valve are communicated to supply hot water to the coffee making circuit, and meanwhile, the coil under the three-way solenoid valve 15 is electrified, so that the first inlet 151 and the third outlet 153 are communicated to supply cold water to the module of the second hot water circuit to make the ice American style coffee.

d. Method of making hot water alone and flow direction of water:

the water flows to the total hot water outlet through the water tank 1, the first two-way electromagnetic valve 2, the second flowmeter 17, the second heating device 19 and the fifth two-way electromagnetic valve 20.

In the manufacturing process, only the first two-way electromagnetic valve 2 enables the inlet 21 and the outlet 22 to be communicated to supply hot water to the module of the second hot water circuit, and the fifth two-way electromagnetic valve 20 is electrified to enable the inlet 201 and the outlet 202 to be communicated to supply hot water to the total hot water outlet.

e. The method for preparing hot milk or milk foam by using steam and the flow direction of water are as follows:

first, the flow direction of water when making hot milk: when water passes through the water tank 1, the first two-way electromagnetic valve 2, the first flowmeter 3, the first water pump 4, the first heating device 5, the third two-way electromagnetic valve 7, the waste water collecting device 8, the fourth two-way electromagnetic valve 9 and the milk heating device 12, when water vapor passes through the milk heating device 12, milk passes through the milk storage container 13 to the milk heating device 12 through the pinch valve 14 to be mixed with the water vapor for heating,

secondly, the flow direction of water when making milk foam: the method for making milk foam is to add an air loop on the basis of making hot milk, in the normal milk making process, the air pump 11 can suck air into the milk heating device 12 through the check valve 10, and the hot milk can realize the milk foam making function after high-pressure air is introduced into the heating device 12.

In the process of making hot milk or milk foam, the first two-way solenoid valve 2 is electrified to enable the inlet 21 and the outlet 22 to be communicated and supply water to the first heating device 5, the third two-way solenoid valve 7 is firstly electrified after receiving high-pressure steam from the first heating device 5, the inlet 71 and the outlet 72 are enabled to be communicated and release redundant pressure to the waste water collecting device 8, after the redundant pressure is discharged, the third two-way solenoid valve is powered off to enable the inlet 71 and the outlet 72 to be closed, then the fourth two-way solenoid valve 9 is electrified to enable the inlet 91 and the outlet 92 to be communicated and enable the residual hot steam to be communicated to the milk heating device 12 and used for heating milk.

f. A milk and coffee making method and a water flow direction;

the coffee machine waterway system of the invention adopts the design of double heating devices, can realize the simultaneous production of coffee and milk, when milk and coffee are required to be produced, water flows into a coffee cup through a pipeline after passing through the water tank 1, the first two-way electromagnetic valve 2, the second flowmeter 17, the second water pump 18, the second heating device 19, the second one-way valve 21 and the coffee brewing device 22, and can simultaneously produce hot milk while producing coffee, namely, the water flows through the water tank 1 and the first two-way electromagnetic valve 2, and flows to a coffee production loop, and simultaneously flows to the milk heating device 12 through the first two-way electromagnetic valve 2, the first flowmeter 3, the first water pump 4, the first heating device 5, the third two-way electromagnetic valve 7, the waste water collecting device 8, the fourth two-way electromagnetic valve 9 and the milk heating device 12, when the water vapor flows to the milk heating device 12, the milk flows from the milk storage container 13 to the milk heating device 12 through the clamping device 14, the coffee cup is mixed with water vapor for heating, and then hot milk and hot coffee flow into the cup at the same time, so that the function of simultaneously discharging coffee and milk when making milk and coffee is realized. Compared with a waterway system of a full-automatic coffee machine in the market, the waterway system of the coffee machine provided by the invention adopts a double-heating system to provide hot water and steam to a milk foam making loop, and the waterway system is different from the full-automatic coffee machine in the market that coffee is made firstly and then hot milk is made, so that the cup outlet efficiency for making milk and coffee is improved.

g. The method for realizing the automatic milk cleaning system and the flow direction of water are as follows:

after hot milk or milk and coffee are manufactured, a milk system needs to be cleaned in time to ensure that the use of the milk system is not influenced when the milk and coffee are manufactured next time, the cleanness and the sanitation of the milk system are ensured, and bacteria are prevented from breeding.

During cleaning only the first two-way solenoid valve 2 is energized so that the inlet 21 and the outlet 22 are connected and water for cleaning is supplied to the first water pump 4, and the coil on the three-way solenoid valve connected to the first water pump 4 is also energized so that the first inlet 151 and the second outlet 152 are connected and cold water is supplied to the milk heating means 12 for cleaning.

The waterway system of the coffee machine of the invention adopts the control of the full electromagnetic valve, is different from adopting the diverter valve to control to supply water to each branch on the market, has promoted the stability of the waterway system of the coffee machine, has reduced the coffee machine waterway system and leaked the risk of trouble, etc. appearing, has avoided the switching time of the diverter valve at the same time, has raised the drink making efficiency of the coffee machine, the waterway system of a coffee machine of the invention includes five two-way electromagnetic valves and a three-way electromagnetic valve altogether, wherein the first two-way electromagnetic valve 2 is used for controlling the coffee machine water and deriving from the water tank, the first two-way electromagnetic valve 2 is powered on when adopting the water tank water, when adopting the running water to supply, the first two-way electromagnetic valve 2 is powered off and blocks the water tank to supply water to; the second two-way solenoid valve 6 is used for controlling whether the hot water in the first heating device 5 is supplied to the first hot water loop or not, and when American coffee needs to be made, the second two-way solenoid valve 6 is powered on, and the power is off at other times. The third two-way electromagnetic valve is used for controlling whether the steam from the first heating device 5 needs to be decompressed, when hot milk or milk foam needs to be made, the third two-way electromagnetic valve 7 is electrified, and the original power-off state is returned after the decompression is finished; the fourth two-way electromagnetic valve 9 is used for controlling whether the decompressed hot water steam can be led into the milk heating device 12 or not, the fourth two-way electromagnetic valve 9 is powered on after the decompression is finished, and the power is off at other time; the three-way electromagnetic valve 15 is used for controlling whether clean water is provided for the milk heating device 12 or not and whether cold water is provided for the hot water making module to make ice American coffee or not, when the milk system needs to be cleaned, a coil on the three-way electromagnetic valve 15 is electrified, so that the first inlet 151 and the second outlet 152 are communicated, water is supplied to the milk heating device 12, when the ice American coffee needs to be made, a coil below the three-way electromagnetic valve 15 is electrified, the first inlet 151 and the third outlet 153 are communicated, the cold water is provided for the second hot water loop to make the ice American coffee, and the power is off at other times; the fifth two-way solenoid valve 20 is used to control whether the hot water coming from the second heating means 19 is supplied to the coffee making circuit, and when it is desired to make coffee, the fourth two-way solenoid valve 20 is energized, and is de-energized at other times.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A waterway system of a coffee machine, comprising: the coffee making device comprises a first hot water loop, a second hot water loop, a coffee making loop and a milk foam making loop, wherein the first hot water loop comprises a water tank, a first two-way electromagnetic valve, a first flowmeter, a first water pump, a first heating device and a second two-way electromagnetic valve which are sequentially connected; the second hot water loop comprises a water tank, a first two-way electromagnetic valve, a second flowmeter, a second water pump, a second heating device and a fifth two-way electromagnetic valve which are connected in sequence; hot water flowing out of the outlet of the second two-way solenoid valve and hot water flowing out of the outlet of the fifth two-way solenoid valve are converged to a total hot water outlet; the coffee making loop comprises a water tank, a first two-way electromagnetic valve, a second flowmeter, a second water pump, a second heating device, a second one-way valve and a coffee brewing device which are connected in sequence; milk foam preparation return circuit is including the water tank, first two-way solenoid valve, first flowmeter, first water pump, first heating device, fourth two-way solenoid valve and the milk heating device that connect gradually, milk heating device's all the way is connected with check valve and air pump, and another way is connected with the storage milk container.

2. The waterway system of the coffee maker of claim 1, wherein the milk froth making circuit further comprises a third two-way solenoid valve connected to the first heating device, the third two-way solenoid valve being connected to a waste water collector for releasing excess water vapor pressure in the milk froth making circuit to the waste water collector.

3. The waterway system of the coffee maker of claim 1, wherein a pinch valve is disposed on a conduit between the milk container and the milk heating device.

4. The waterway system of the coffee machine of claim 1, further comprising a three-way solenoid valve connected to the first water pump, wherein when the first inlet of the three-way solenoid valve is communicated with the second outlet, the three-way solenoid valve is communicated with the milk heating device; when the first inlet and the third outlet of the three-way electromagnetic valve are communicated, the three-way electromagnetic valve is communicated with the second hot water loop to provide cold water into the second hot water loop so as to make the ice coffee.

5. The waterway system of the coffee maker of claim 4, wherein the three-way solenoid valve provides cold water for cleaning the remaining milk to the milk heating device when the first inlet and the second outlet of the three-way solenoid valve are communicated.

6. The waterway system of the coffee maker as recited in claim 4, wherein when the first inlet and the third outlet of the three-way solenoid valve are communicated, the three-way solenoid valve is connected to the first check valve, and water passing through the first check valve finally flows to the total hot water outlet.

7. The waterway system of a coffee maker of claim 1, wherein a pressure relief valve provided in the coffee brewing device is driven by the stepping motor to discharge waste water to the waste water collecting device after the coffee making in the coffee making circuit is completed.