Coffee machine and waterway system thereof

Abstract

The utility model provides a water path system of a coffee machine and the coffee machine thereof, and relates to the technical field of coffee brewing equipment, the water path system comprises a water tank, and a first water path for making coffee and a second water path for making hot water or steam are respectively communicated along a water delivery path of the water tank; the first water path comprises a first water pump, the first water pump is connected with a first heater, the first heater is connected with an electromagnetic valve, and the electromagnetic valve is connected with a coffee brewing assembly; and the electromagnetic valve is used for controlling the hot water in the first water path to enter the coffee brewing assembly. The coffee maker has the advantages that the coffee maker is provided with two water channels, one water channel is specially used for making coffee, the other water channel is used for making hot water or steam, hot water or steam is controlled to flow out through the change-over switch, and the structure is ingenious; and the heater is independently arranged in each water path and used for heating the circulating water, so that the circulation path of the heater in each water path for heating the water into hot water is shortened, and the heat dissipation of the hot water is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee brewing equipment, in particular to a waterway system of a coffee machine and the coffee machine. Background Art

[0002] A coffee machine is a device or machine for making coffee. By bringing heated water into contact with coffee powder and applying appropriate pressure, the aroma and taste of coffee are extracted. The working principle of a coffee machine is usually to heat water and pass it through coffee powder under a certain pressure, so that the nutrients and caffeine in the coffee are dissolved in the water, thereby making coffee.

[0003] At present, many patents related to coffee machines have been published. The patent publication number CN221383266U discloses a waterway system of a coffee machine and the coffee machine. The specific solution is as follows: It includes a water tank heating module, which includes a diverting joint, a coffee brewing device, a hot water brewing nozzle, and a steam output part. The input end of the diverting joint is connected to the water tank heating module, and the output ends of the diverting joint are respectively connected to the coffee brewing device, the hot water brewing nozzle, and the steam output part; the coffee brewing device is provided with a pressure relief mechanism and a pressure relief port connected to the pressure relief mechanism, and the pressure relief port is communicated with the outside. This waterway system combines a diverting interface and a pressure relief mechanism, and adds a pressure relief process on the basis of meeting the functions of brewing coffee, brewing hot water, and making milk foam. The pressure relief device is used to evacuate and discharge the air accumulated in the coffee machine cavity, reduce the pressure in the coffee machine cavity, so that the coffee machine can smoothly perform the brewing process, avoid splashing when pressing down forcibly, ensure the normal use of users, improve the safety of the equipment, and improve the user experience.

[0004] However, the defect of the above coffee machine waterway system is that coffee brewing, the hot water brewing nozzle, or making steam only heats the hot water through one heating module, which will cause the heating module to be in a working state for a long time, with a large working load and easy to be damaged; in addition, since only one heating module is used, the hot water coming out of the heating module needs to be divided through multiple shunt components such as a diverting joint, a two-way valve, and a three-way valve, which not only has a complex structure, but also makes the pipeline flow path of the hot water longer, and heat is easily lost during the flow process.

[0005] Based on this, it is necessary to disclose a waterway system of a coffee machine and the coffee machine to overcome the above-mentioned defects. Summary of the Utility Model

[0006] The utility model overcomes the defects in the prior art and provides a waterway system of a coffee machine and the coffee machine, which can solve the technical defects mentioned in the background art.

[0007] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] A waterway system of a coffee machine includes a water tank. Along the water delivery path of the water tank, there are respectively and independently connected a first waterway for making coffee and a second waterway for making hot water or steam, so as to be able to make hot water or steam while making coffee.

[0009] The first waterway includes a first water pump. The first water pump is connected to a first heater, the first heater is connected to a solenoid valve, and the solenoid valve is connected to a coffee brewing component. The solenoid valve is used to control the opening and closing of the hot water in the first waterway entering the coffee brewing component.

[0010] The second waterway includes a second water pump. The second water pump is connected to a second heater, and the second heater is connected to a changeover switch. A hot water switch and a steam switch are arranged on the changeover switch. The changeover switch also has a hot water / steam input port, a steam output port, and a hot water output port. The hot water / steam input port is connected to the second heater. A rotating component is also rotatably connected to the changeover switch. The rotating component is selectively and movably connected to the hot water switch and the steam switch to control the second waterway to selectively output hot water or steam.

[0011] Furthermore, a protection valve for voltage stabilization is arranged in the first waterway. The protection valve is located between the first water pump and the first heater and is connected to the water tank.

[0012] Furthermore, a flowmeter for monitoring flow data is arranged in the first waterway. The flowmeter is located between the water tank and the first water pump and is connected to the inlet of the first water pump.

[0013] Furthermore, a release port for high-pressure gas is also arranged on the changeover switch.

[0014] The present utility model also claims protection for a coffee machine, including the waterway system of the coffee machine described in any one of the above.

[0015] Furthermore, it also includes a box body. The water tank is connected to the side of the box body far from the human operation, and the coffee brewing component is located inside the box body close to the human operation side. It also includes a coffee brewing funnel, and the coffee brewing funnel is movably connected below the coffee brewing component. The changeover switch is arranged on the side of the box body close to the human operation side.

[0016] Furthermore, the rotating component includes a cylinder body, and the cylinder body is rotatably assembled on the box body. A first contact rod for matching with the hot water switch and a second contact rod for matching with the steam switch are arranged at the inner end of the cylinder body. The first contact rod and the second contact rod are perpendicular to the central axis of the cylinder body.

[0017] Further, the rotating member further includes a knob which protrudes from the side of the cabinet; a plurality of clamping bars are arranged on the outer circumference of the outer end of the cylinder body, a plugging hole is arranged on the inner side of the knob, and a clamping groove matching the clamping bars is arranged on the inner wall of the plugging hole; the extending direction of the clamping bars is perpendicular to the rotating direction of the knob after an external force is applied.

[0018] Further, a reference point for referring to the state of the changeover switch is arranged on the outer surface of the knob.

[0019] Further, the coffee brewing funnel has a handle, and a flow-attenuating member is connected to the lower end of the coffee brewing funnel, and both ends of the flow-attenuating member are wrapped to form a flow channel that smoothly bends downward.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] This waterway system has two waterway channels. One waterway is specifically used for making coffee, and the other waterway is used for making hot water or steam, and the changeover switch is used to control the output of hot water or steam; and a heater is separately arranged in each waterway to heat the flowing water, so that for the whole machine, the utilization rate of each heater is reduced, and the working load of each heater is reduced; in addition, it also helps to shorten the flowing path of the heater in each waterway to heat the water into hot water, and reduce the dissipation of the heat of the hot water. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present utility model, and are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0023] Figure 1 is the waterway diagram of the coffee machine in the standby state;

[0024] Figure 2 is the waterway diagram of the coffee machine when brewing coffee and steaming;

[0025] Figure 3 is the waterway diagram of the coffee machine when brewing coffee and outputting hot water;

[0026] Figure 4 is the three-dimensional view of the coffee machine described in this embodiment;

[0027] Figure 5 is the internal structure schematic diagram of the coffee machine described in this embodiment;

[0028] Figure 6 is the structure schematic diagram of the changeover switch of the coffee machine described in this embodiment;

[0029] Figure 7 is the top view of the changeover switch of the coffee machine described in this embodiment;

[0030] Figure 8 is a side view of the conversion switch of the coffee machine described in this embodiment;

[0031] Figure 9 is a perspective view of the rotating member described in this embodiment;

[0032] Figure 10 is a perspective view of the inner side direction of the knob described in this embodiment;

[0033] Figure 11 is a schematic diagram of the combined state of the coffee brewing funnel and the flow retarder described in this embodiment;

[0034] Figure 12 is a schematic diagram of the flow retarder described in this embodiment.

[0035] In the figure:

[0036] 1. Water tank; 2. First waterway; 201. First water pump; 202. First heater; 203. Solenoid valve; 204. Coffee brewing assembly; 3. Second waterway; 301. Second water pump; 302. Second heater; 303. Conversion switch; 3031. Hot water / steam input port; 3032. Steam output port; 3033. Hot water output port; 3034. Release port; 4. Hot water switch; 5. Steam switch; 6. Protection valve; 7. Flowmeter; 8. Cabinet; 9. Coffee brewing funnel; 901. Handle; 10. Rotating member; 1001. Cylinder; 10011. Card strip; 1002. First contact rod; 1003. Second contact rod; 1005. Knob; 10051. Insertion hole; 10052. Reference point; 11. Flow retarder; 1101. Flow channel. Detailed implementation manners

[0037] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0038] As Figures 1 to 12 shown, the present invention claims to protect a waterway system of a coffee machine, which has two waterway channels. One waterway is specifically for making coffee, and the other waterway is for making hot water or steam; and a heater is separately provided in each waterway to heat the flowing water, thereby reducing the utilization rate of each heater for the whole machine and reducing the working load of each heater; in addition, it also helps to shorten the flow path of the heater in each waterway to heat the water into hot water and reduce the heat dissipation of the hot water; the two waterways are independently arranged so that hot water or steam can be made while making coffee.

[0039] Specifically, this waterway system includes a water tank 1, and a first waterway 2 for making coffee and a second waterway 3 for making hot water or steam are respectively and communicatively arranged along the water delivery path of the water tank 1;

[0040] Among them, the first waterway 2 includes a first water pump 201, the first water pump 201 is connected to a first heater 202, the first heater 202 is connected to a solenoid valve 203, and the solenoid valve 203 is connected to a coffee brewing component 204; the solenoid valve 203 is used to control the opening and closing of the hot water in the first waterway 2 entering the coffee brewing component 204; when coffee needs to be brewed, the first water pump 201 works to pump out the water in the water tank 1, which flows through the first heater 202 and is heated and finally output from the coffee brewing component 204 through the control of the solenoid valve 203 for coffee brewing; in practical applications, the solenoid valve 203 is a three-way valve, the water inlet of the three-way valve is communicated with the first heater 202, one of the water outlets of the three-way valve is communicated with the coffee brewing component 204, and the other water outlet of the three-way valve is communicated with a release tank; the solenoid valve 203 controls the opening and closing with the coffee brewing component 204 and the release tank according to actual needs.

[0041] A protection valve 6 for voltage stabilization is arranged in the first waterway 2. The protection valve 6 is located between the first water pump 201 and the first heater 202, and the protection valve 6 is communicated with the water tank 1; the protection valve 6 is a kind of overflow valve. Since the first heater 202 heats the water to generate high-pressure steam, a high pressure is formed in the first waterway 2. When the high-pressure value exceeds the threshold value of the overflow valve, the overflow port of the overflow valve will open, so that the high-pressure water vapor flows back to the water tank 1, thus ensuring the stability of the pressure in the first waterway 2.

[0042] A flowmeter 7 for monitoring flow data is arranged in the first waterway 2. The flowmeter 7 is located between the water tank 1 and the first water pump 201 and is connected to the inlet of the first water pump 201, that is, the flowmeter 7 is arranged close to the water tank 1, so as to more accurately record the flowing-away value from the water tank 1, which helps the user to monitor the remaining water volume in the water tank 1 for timely water replenishment.

[0043] The second water path 3 includes a second water pump 301. The second water pump 301 is connected to a second heater 302, and the second heater 302 is connected to a changeover switch 303. The function of the changeover switch 303 is to make the second water path 3 output hot water or steam for use. A hot water switch 4 and a steam switch 5 are provided on the changeover switch 303. The changeover switch 303 also has a hot water / steam input port 3031, a steam output port 3032, and a hot water output port 3033. The hot water / steam input port 3031 is connected to the second heater 302. When hot water is required, the second water pump 301 operates to pump the water in the water tank 1 to the second heater 302 for heating. The second heater 302 heats the water into hot water, which enters the internal chamber of the changeover switch 303 from the hot water / steam input port 3031 and then is discharged from the hot water output port 3033. Similarly, when steam is required, the second water pump 301 operates to pump the water in the water tank 1 to the second heater 302 for heating. The second heater 302 heats the water into steam, which enters the internal chamber of the changeover switch 303 from the hot water / steam input port 3031 and then is discharged from the steam output port 3032. The hot water switch 4 and the steam switch 5 are proximity switches that transmit signals to the changeover switch 303 to control the opening and closing of the hot water flow path and the steam flow path in the internal chamber of the changeover switch 303. As one embodiment, the changeover switch 303 is a four-way valve. The water inlet of the four-way valve is connected to the hot water / steam input port 3031. Two of the outlets of the four-way valve are respectively communicated with the steam output port 3032 and the hot water output port 3033. After the hot water switch 4 and the steam switch 5 are actuated, different signals are respectively transmitted to the four-way valve to control the opening and closing of the steam output port 3032 and the hot water output port 3033.

[0044] A rotating member 10 is also rotatably connected to the changeover switch 303. The rotating member 10 is used to actuate the hot water switch 4 and the steam switch 5. The rotating member 10 is selectively movably connected to the hot water switch 4 and the steam switch 5 to control the second water path 3 to selectively output hot water or steam. The changeover switch 303 also has a release port 3034 for high-pressure gas. When making hot water or steam, high pressure also exists in the internal chamber of the changeover switch 303. The high-pressure gas can be discharged from the release port 3034 to avoid harm caused by high pressure and enable the device to operate stably.

[0045] The present utility model claims to protect a coffee machine, including the waterway system of the coffee machine according to any one of the above. Wherein, the coffee machine includes a box body 8, and the water tank 1 is connected to one side of the box body 8 far from the human operation. The coffee brewing assembly 204 is located on one side of the box body 8 close to the human operation, which is beneficial for human operation, and the water tank 1 does not affect the human operation either. It also includes a coffee brewing funnel 9, and the coffee brewing funnel 9 is movably connected below the coffee brewing assembly 204. When in use, coffee powder can be loaded into the coffee brewing funnel 9, and the hot water flowing out from the coffee brewing assembly 204 presses on the coffee powder in the coffee brewing funnel 9 to form coffee liquid.

[0046] The conversion switch 303 is arranged on the side of the box body 8 close to the human operation, which is also convenient for personnel to operate to switch the output of hot water or steam. The rotating member 10 includes a cylinder body 1001, and the cylinder body 1001 is rotatably assembled on the box body 8; a first contact rod 1002 for matching with the hot water switch 4 and a second contact rod 1003 for matching with the steam switch 5 are arranged at the inner end of the cylinder body 1001; the rotating member 10 further includes a knob 1005, and the knob 1005 protrudes from the side of the box body 8 for easy manual operation. A plurality of clamping strips 10011 are arranged on the outer circumference of the outer end of the cylinder body 1001, and a plugging hole 10051 is arranged on the inner side of the knob 1005. A clamping groove matching with the clamping strip 10011 is arranged on the inner wall of the plugging hole 10051. The knob 1005 is directly inserted and assembled to the outer end of the cylinder body 1001, and the clamping strip 10011 is embedded in the clamping groove in the plugging hole 10051. The extending direction of the clamping strip 10011 is perpendicular to the rotating direction of the knob 1005 after an external force is applied, so as to prevent the knob 1005 from slipping when rotating with the cylinder body 1001. Therefore, rotating the knob 1005 controls the rotation of the cylinder body 1001; as Figure 6 shown, rotating the knob 1005 makes the cylinder body 1001 rotate, so that the first contact rod 1002 contacts the hot water switch 4 or the second contact rod 1003 contacts the steam switch 5, thereby controlling the output of hot water or steam. Figure 6 It can be seen that the first contact rod 1002 and the second contact rod 1003 are symmetrically distributed on both sides of the cylinder body 1001, and the hot water switch 4 and the steam switch 5 are also inclined, making the structure symmetrical. The first contact rod 1002 and the second contact rod 1003 will touch the hot water switch 4 and the steam switch 5 respectively during rotation to output signals. The first contact rod 1002 and the second contact rod 1003 are perpendicular to the central axis of the cylinder body 1001, and the overall structure of the rotating member 10 is uniformly symmetrical.

[0047] Since the positions of the first contact rod 1002 and the second contact rod 1003 are not visible from the outside, a reference point 10052 for the state reference of the changeover switch 303 is provided on the outer surface of the knob 1005. Through the assembly between the knob 1005 and the cylinder 1001, the first contact rod 1002 and the second contact rod 1003 can be in the state as shown in Figure 6 (that is, not in contact with the hot water switch 4 nor with the steam switch 5). It is corresponding to the position where the reference point 10052 is at the Figure 4 topmost center position, which helps the user to judge the angular position state of the internal first contact rod 1002 and the second contact rod 1003.

[0048] The coffee brewing funnel 9 has a handle 901. A flow-attenuating member 11 is connected to the lower end of the coffee brewing funnel 9. Smooth downwardly curved flow channels 1101 are formed by wrapping both ends of the flow-attenuating member 11. The flow-attenuating member 11 is connected to the coffee outlet of the coffee brewing funnel 9. The coffee flowing out of the coffee brewing funnel 9 enters from the top of the flow-attenuating member 11 and flows down through the flow channels 1101 at both ends of the flow-attenuating member 11, avoiding the traditional coffee liquid directly falling from the outlet of the coffee brewing funnel 9 into the cup. The flow-attenuating member 11 can prevent the coffee liquid from splashing when the cup receives the coffee liquid.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A water system for a coffee machine, characterized in that: The invention comprises a water tank (1), wherein a first water path (2) for making coffee and a second water path (3) for making hot water or steam are connected and arranged independently of each other along a water delivery path of the water tank (1), so that hot water or steam can be made while making coffee; The first water circuit (2) comprises a first water pump (201), the first water pump (201) is connected to a first heater (202), the first heater (202) is connected to a solenoid valve (203), and the solenoid valve (203) is connected to a coffee brewing component (204); the solenoid valve (203) is used to control the hot water in the first water circuit (2) to enter the coffee brewing component (204). The second water circuit (3) comprises a second water pump (301), the second water pump (301) is connected to the second heater (302), and the second heater (302) is connected to the conversion switch (303); the conversion switch (303) is provided with a hot water switch (4) and a steam switch (5), the conversion switch (303) also has a hot water / steam input port (3031), a steam outlet port (3032) and a hot water outlet port (3033), and the hot water / steam input port (3031) is connected to the second heater (302); the conversion switch (303) is also rotatably connected to a rotating component (10), the rotating component (10) is selectively connected to the hot water switch (4) and the steam switch (5) to control the second water circuit (3) to selectively output hot water or steam.

2. The water system of the coffee machine according to claim 1, characterized in that: The first water circuit (2) is provided with a protection valve (6) for stabilizing pressure. The protection valve (6) is located between the first water pump (201) and the first heater (202). The protection valve (6) is connected to the water tank (1).

3. The water system of the coffee machine according to claim 2, characterized in that: The first water channel (2) is provided with a flow meter (7) for monitoring flow data. The flow meter (7) is located between the water tank (1) and the first water pump (201) and is connected to the inlet of the first water pump (201).

4. The water system of the coffee machine according to claim 3, characterized in that: The conversion switch (303) also has a high-pressure gas release port (3034).

5. A coffee machine, characterized in that: A water system comprising the coffee machine according to any one of claims 1 to 4.

6. The coffee machine according to claim 5, characterized in that The invention also comprises a housing (8), wherein the water tank (1) is connected to a side of the housing (8) away from human operation, and the coffee brewing component (204) is located in the housing (8) on a side close to human operation; the invention also comprises a coffee brewing funnel (9), wherein the coffee brewing funnel (9) is movably connected to the bottom of the coffee brewing component (204); and the conversion switch (303) is arranged on a side of the housing (8) close to human operation.

7. The coffee machine according to claim 6, characterized in that The rotating component (10) comprises a cylinder (1001) which is rotatably mounted on the box (8); a first touch rod (1002) for matching with the hot water switch (4) and a second touch rod (1003) for matching with the steam switch (5) are arranged at the inner end of the cylinder (1001); the first touch rod (1002) and the second touch rod (1003) are perpendicular to the central axis of the cylinder (1001).

8. The coffee machine according to claim 7, characterized in that The rotating component (10) further comprises a knob (1005), which protrudes from the side of the box body (8); a plurality of clamping strips (10011) are arranged on the circumference of the outer end of the cylinder body (1001); a plug hole (10051) is arranged on the inner side of the knob (1005); a clamping groove matching the clamping strip (10011) is arranged on the inner wall of the plug hole (10051); and the extending direction of the clamping strip (10011) is perpendicular to the rotation direction of the knob (1005) after an external force is applied.

9. The coffee machine according to claim 8, characterized in that The outer surface of the knob (1005) is provided with a reference point (10052) for reference of the state of the conversion switch (303).

10. The coffee machine according to claim 6, characterized in that The coffee brewing funnel (9) has a handle (901), and the lower end of the coffee brewing funnel (9) is connected to a slow-flow member (11), and the two ends of the slow-flow member (11) are rolled to form a smooth downward-bending flow channel (1101).

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