Double-heating water path structure of coffee machine and coffee machine

Abstract

The utility model provides a double-heating waterway structure of a coffee maker and the coffee maker, the double-heating waterway structure of the coffee maker comprises a water tank mechanism, a first heating device, a multi-way valve mechanism, a second heating device, a brewing mechanism, a steam valve and a milk foam generating mechanism, the water tank mechanism is connected with a water inlet of the first heating device; a water outlet of the first heating device is connected with the multi-way valve mechanism, and the multi-way valve mechanism is connected with a water inlet of the brewing mechanism and a water inlet of the second heating device and used for controlling on-off of the brewing mechanism and on-off of the second heating device. A water outlet of the second heating device is connected with the steam valve, and the steam valve is connected with the milk foam generating mechanism. Compared with a traditional coffee machine only provided with a single heating device, the coffee machine has the advantages that the step of brewing coffee after the heating device is cooled is not needed, the use efficiency of the coffee machine is improved, and the operation process steps are simplified.

Description

Technical Field

[0001] The present application relates to the technical field of coffee machines, and in particular to a double heating water channel structure of a coffee machine and a coffee machine. Background Art

[0002] Current coffee machines on the market all use a single heating device to brew coffee and steam-froth milk. However, since the temperatures required for brewing coffee and steam-frothing milk are different, the coffee machine needs to adjust and switch the heating device between different powers when brewing coffee and steam-frothing milk. If coffee needs to be brewed after steam-frothing milk, the power of the heating device needs to be adjusted, and the coffee brewing step can only be performed after the heating device has cooled down, which is relatively cumbersome. Summary of the invention

[0003] In order to improve the use efficiency of a coffee machine and simplify the operation process steps, the present application provides a coffee machine with a dual heating water path structure and a coffee machine.

[0004] This application is implemented by the following technical solutions:

[0005] A double heating water path structure of a coffee machine comprises a water tank mechanism, a first heating device, a multi-way valve mechanism, a second heating device, a brewing mechanism, a steam valve and a milk froth generating mechanism, wherein the water tank mechanism is connected to a water inlet of the first heating device, a water outlet of the first heating device is connected to the multi-way valve mechanism, and the multi-way valve mechanism is respectively connected to a water inlet of the brewing mechanism and a water inlet of the second heating device, and is used for respectively controlling the on and off of the brewing mechanism and the second heating device, a water outlet of the second heating device is connected to the steam valve, and the steam valve is connected to the milk froth generating mechanism.

[0006] In the double heating water path structure of the coffee machine as described above, the multi-way valve mechanism includes a first three-way solenoid valve.

[0007] As described above, in the double heating water path structure of the coffee machine, the steam valve comprises a second three-way solenoid valve, the second three-way solenoid valve is provided with a first water inlet end, a steam output end and a pressure relief end, the first water inlet end is connected to the water outlet of the second heating device, and the steam output end is connected to the milk foam generating mechanism.

[0008] In the double heating water channel structure of the coffee machine as described above, the pressure relief end is connected to a buffer pressure reduction box, and the buffer pressure reduction box is connected to a waste water box.

[0009] In the double heating water path structure of the coffee machine as described above, the multi-way valve mechanism includes a three-way pressure valve and a one-way solenoid valve, the three-way pressure valve is provided with a second water inlet end, a normally open end and a pressure on-off end, the second water inlet end is connected to the first heating device, the normally open end is connected to the water inlet of the one-way solenoid valve, the pressure on-off end is connected to the brewing mechanism, and the water outlet of the one-way solenoid valve is connected to the second heating device.

[0010] In the double heating water path structure of the coffee machine as described above, the steam valve includes a one-way valve.

[0011] In the double heating water path structure of the coffee machine as described above, the water tank mechanism includes a water tank, a water pump connected to the water tank, and a safety valve connected between the water pump and the first heating device.

[0012] In the double heating water channel structure of the coffee machine as described above, a plurality of pressure reducing baffles are provided in the buffer pressure reducing box.

[0013] The present application also provides a coffee machine, comprising the double heating water path structure of the coffee machine as described above.

[0014] The coffee machine as described above further comprises a base and a milk box, wherein the base is provided with a limiting portion for limiting the milk box, and the base is also provided with a detector for detecting whether the milk box is installed in place.

[0015] Compared with the prior art, this application has the following advantages:

[0016] 1. In the present application, when the steam milk frothing mode is performed, the water tank mechanism guides water to the first heating device for heating, and the heated water is guided to the multi-way valve mechanism. At this time, the multi-way valve mechanism is connected to the second heating device, so that the water heated by the first heating device flows to the second heating device for secondary heating, and the secondary heating is used to accelerate the evaporation of water to generate water vapor. In this way, the multi-way valve mechanism switches the passage, so that the first heating device and the second heating device are connected in series to perform steam milk frothing, which can improve the efficiency of milk frothing; when switching the coffee brewing mode, it is only necessary to adjust the multi-way valve mechanism so that the multi-way valve mechanism is not connected to the second heating device, and only control the first heating device and the brewing mechanism to be connected to brew coffee. Compared with the traditional coffee machine with only a single heating device, the coffee brewing step can be performed without waiting for the heating device to cool down, thereby improving the use efficiency of the coffee machine and simplifying the operation process steps.

[0017] 2. The present application switches the passage through a multi-way valve mechanism so that the first heating device and the second heating device are connected in series to perform steam frothing of milk, which can reduce heat loss and prevent water vapor from re-condensing into water droplets in a longer pipe, thereby reducing the release of condensed water carried by the output steam; and the dual heating device design has a smaller pressure burden on the heating device than the single heating device design, which is conducive to extending the service life of the heating device.

[0018] 3. The present application sets up a buffer pressure reduction box, which is equipped with multiple pressure reduction baffles. This design can buffer the pressure released by the equipment, reduce the impact force generated during pressure discharge, and achieve safe pressure discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0020] Figure 1 This is a schematic diagram of the principle framework structure of the double heating water path structure of the coffee machine in Example 1;

[0021] Figure 2 is a three-dimensional schematic diagram of a coffee machine according to Embodiment 1;

[0022] Figure 3 is a schematic diagram of the internal structure of the coffee machine in Example 1;

[0023] Figure 4 is a schematic diagram of the internal structure of the pressure reduction buffer box in the coffee machine of Example 1;

[0024] Figure 5 is a schematic diagram of an explosion and decomposition of a coffee machine in Example 1;

[0025] Figure 6 It is a schematic diagram of the principle framework structure of the double heating water path structure of the coffee machine in the second embodiment. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] When the embodiments of the present application mention ordinal numbers such as "first" and "second", unless they do express the meaning of order according to the context, they should be understood as being merely for the purpose of distinction.

[0028] 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.

[0029] Embodiment 1: Figures 1 to 5As shown, this embodiment provides a coffee machine, which includes a base 101 and a milk box 102, and the base 101 is provided with a limiting portion 103 for limiting the milk box 102, and the base 101 is also provided with a detector 104 for detecting whether the milk box 102 is installed in place. The detector 104 is provided at the connection between the milk box 102 and the base 101, and the detector 104 is electrically connected to the main control module in the device, and is used to detect whether the milk box 102 is installed normally. When the milk box 102 is installed normally, the coffee machine as a whole can run the process of generating steam normally. And the base 101 is also provided with a limiting portion 103 to limit the installation of the milk box 102 to avoid displacement during installation. The coffee machine also includes a double heating water path structure of the coffee machine. The double heating water path structure of the coffee machine includes a water tank mechanism 1, a first heating device 2, a multi-way valve mechanism 3, a second heating device 4, a brewing mechanism 5, a steam valve 6 and a milk foam generating mechanism 7, and the brewing mechanism 5 includes a funnel and a coffee cup for brewing coffee. The water tank mechanism 1 is connected to the water inlet of the first heating device 2, the water outlet of the first heating device 2 is connected to the multi-way valve mechanism 3, and the multi-way valve mechanism 3 is respectively connected to the water inlet of the brewing mechanism 5 and the water inlet of the second heating device 4, for respectively controlling the on and off of the brewing mechanism 5 and the second heating device 4, the water outlet of the second heating device 4 is connected to the steam valve 6, and the steam valve 6 is connected to the milk foam generating mechanism 7. In the present embodiment, when the steam milk frothing mode is performed, the water tank mechanism 1 guides water to the first heating device 2 for heating, and the heated water is guided to the multi-way valve mechanism 3. At this time, the multi-way valve mechanism 3 is connected to the second heating device 4, so that the water heated by the first heating device 2 flows to the second heating device 4 for secondary heating, and the secondary heating is used to accelerate the evaporation of water to generate water vapor. In this way, the multi-way valve mechanism 3 switches the passage, so that the first heating device 2 and the second heating device 4 are connected in series to perform steam milk frothing, which can improve the efficiency of milk frothing; when switching the coffee brewing mode, it is only necessary to adjust the multi-way valve mechanism 3 so that the multi-way valve mechanism 3 is not connected to the second heating device 4, and only control the first heating device 2 and the brewing mechanism 5 to be connected to perform coffee brewing. Compared with the traditional coffee machine with only a single heating device, the coffee brewing step can be performed without waiting for the heating device to cool down, thereby improving the use efficiency of the coffee machine and simplifying the operation process steps. In this embodiment, a steam valve 6 is provided between the second heating device 4 and the milk froth generating mechanism 7. After the steam frothing of the milk is completed, the water or steam inside the device is discharged through the steam valve to reduce the internal pressure of the device.In this embodiment, the multi-way valve mechanism 3 switches the passage so that the first heating device 2 and the second heating device 4 are connected in series to perform steam milk frothing, which can reduce heat loss and prevent water vapor from re-condensing into water droplets in a long pipe, thereby reducing the release of condensed water carried by the output steam; and the dual heating device design has a smaller pressure burden on the heating device than the single heating device design, which is conducive to extending the service life of the heating device.

[0030] Furthermore, the water tank mechanism 1 includes a water tank 11, a water pump 12 connected to the water tank 11, and a safety valve 13 connected between the water pump 12 and the first heating device 2. The safety valve 13 of this embodiment is a prior art component, and an exhaust piston and an exhaust channel are arranged inside the safety valve 13. When the water pump 12 is filled with water, air will exist in the rear section of the water pump to hinder the flow of water. By setting the safety valve 13, the air can be discharged to the outside to ensure the normal flow of water in the waterway. In this embodiment, the water tank mechanism 1 also includes a filter 14 and a flow meter 15 connected in sequence between the water tank 11 and the water pump 12, so as to purify the water quality and monitor the flow of the waterway.

[0031] Furthermore, in this embodiment, the multi-way valve mechanism 3 includes a first three-way solenoid valve 31. In this embodiment, when performing steam milk frothing operation, the first three-way solenoid valve 31 is energized, the water outlet connected to the brewing mechanism 5 is closed, and the water outlet connected to the second heating device 4 is opened, so that the water heated by the first heating device 2 flows into the second heating device 4 for secondary heating, and the secondary heating is used to accelerate the evaporation of water to generate water vapor. In this way, the first three-way solenoid valve 31 switches the passage, so that the first heating device 2 and the second heating device 4 are connected in series to steam milk frothing, which can improve the efficiency of milk frothing; when switching the coffee brewing mode, the water tank mechanism 1 guides water to the first heating device 2 for heating, and the heated water is guided to the first three-way solenoid valve 31. At this time, the first three-way solenoid valve 31 is in a non-energized state, and the water outlet of the first three-way solenoid valve 31 used to connect the brewing mechanism 5 is in a normally open state, and the water outlet connected to the second heating device 4 is closed so as to contact the coffee powder for brewing. Compared with a traditional coffee machine with only a single heating device, the coffee brewing step can be performed without waiting for the heating device to cool down, thereby improving the use efficiency of the coffee machine and simplifying the operation process steps.

[0032] Furthermore, the steam valve 6 includes a second three-way solenoid valve 61, which is provided with a first water inlet, a steam output and a pressure relief end. The steam output is used to output steam when performing the steam frothing operation, and the pressure relief is used to relieve pressure after completing the steam frothing operation. The first water inlet is connected to the water outlet of the second heating device 4, and the steam output is connected to the milk frothing generating mechanism 7. After completing the steam frothing, the coffee machine turns off the first heating device 2 and the second heating device 3, so that the first heating device 2 and the second heating device 3 stop heating, and energizes the second three-way solenoid valve 61, so that the steam output is closed and the pressure relief is opened, so as to drain the internal pressure and the water or steam inside the coffee machine.

[0033] Furthermore, in order to reduce potential safety hazards and to achieve safe pressure relief of the steam inside the coffee machine, the pressure relief end is connected to a buffer pressure relief box 8, and the buffer pressure relief box 8 is connected to a waste water box 9.

[0034] Furthermore, a plurality of pressure reducing baffles 81 are provided in the buffer pressure reducing box 8. A pressure reducing flow channel 82 is provided in the pressure reducing box 8, and a plurality of pressure reducing baffles 81 are arranged in the pressure reducing flow channel 82. This design can buffer the pressure released by the equipment, reduce the impact force generated during pressure discharge, and achieve safe pressure discharge.

[0035] The working principle of this embodiment is as follows:

[0036] In the present embodiment, when the steam milk frothing mode is performed, the water tank mechanism 1 guides water to the first heating device 2 for heating, and the heated water is guided to the multi-way valve mechanism 3. At this time, the multi-way valve mechanism 3 is connected to the second heating device 4, so that the water heated by the first heating device 2 flows to the second heating device 4 for secondary heating, and the secondary heating is used to accelerate the evaporation of water to generate water vapor. In this way, the multi-way valve mechanism 3 switches the passage, so that the first heating device 2 and the second heating device 4 are connected in series to perform steam milk frothing, which can improve the efficiency of milk frothing; when switching the coffee brewing mode, it is only necessary to adjust the multi-way valve mechanism 3 so that the multi-way valve mechanism 3 is not connected to the second heating device 4, and only control the first heating device 2 and the brewing mechanism 5 to be connected to perform coffee brewing. Compared with the traditional coffee machine with only a single heating device, the coffee brewing step can be performed without waiting for the heating device to cool down, thereby improving the use efficiency of the coffee machine and simplifying the operation process steps. This embodiment also sets a steam valve 6 between the second heating device 4 and the milk frothing mechanism 7. After the steam frothing is completed, the water or steam inside the device is emptied through the steam valve to reduce the internal pressure of the device. This embodiment switches the passage through the multi-way valve mechanism 3 so that the first heating device 2 and the second heating device 4 are connected in series to perform steam frothing, which can reduce heat loss and prevent water vapor from re-condensing into water droplets in a long pipe, thereby reducing the release of condensed water carried by the output steam; and the dual heating device design has a smaller pressure burden on the heating device than the single heating device design, which is conducive to extending the service life of the heating device.

[0037] Embodiment 2: Figure 6 The double heating water path structure of the coffee machine shown in the figure, compared with the first embodiment, the main difference of this embodiment is that the multi-way valve mechanism 3 includes a three-way pressure valve 32 and a one-way solenoid valve 33, the three-way pressure valve 32 is provided with a second water inlet end, a normally open end and a pressure on-off end, the second water inlet end is connected to the first heating device 2, the normally open end is connected to the water inlet of the one-way solenoid valve 33, the pressure on-off end is connected to the brewing mechanism 5, and the water outlet of the one-way solenoid valve 33 is connected to the second heating device 4. When the coffee machine is adjusted to the coffee brewing mode, the first heating device 2 is in operation, and the one-way solenoid valve 33 is in a closed state at this time, so a closed water path is formed between the first heating device 2 and the one-way solenoid valve 33; the water in the closed water path is heated by the first heating device 2, and the pressure in the closed water path increases; a three-way pressure valve 32 is provided between the first heating device 4 and the one-way solenoid valve 33, and a pressure on-off end is provided on the three-way pressure valve 32 (this channel can only be opened after reaching a certain pressure value). When the pressure value reaches the pressure on-off end requirement, the pressure on-off end is opened, and hot water is released to the brewing mechanism 5 to brew coffee. This design improves the accuracy of the heating water temperature and improves the coffee steaming effect.

[0038] When the coffee machine switches to the steam milk frothing mode, the one-way solenoid valve 33 is in the open state, and the normally open end of the three-way pressure valve 32 is connected to the one-way solenoid valve 33. The water passes through the first heating device 2 and the normally open end of the three-way pressure valve 32 and reaches the one-way solenoid valve 33. At this time, because the one-way solenoid valve 33 is in the open state, the pressure in the three-way pressure valve 32 has not reached the pressure value at the opening of the pressure on-off end. At this time, the water enters the second heating device 4 through the one-way solenoid valve 33 and is heated again to be converted into steam.

[0039] Furthermore, the steam valve 6 includes a one-way valve 62. The steam valve 6 uses a one-way valve 62 to prevent the steam from flowing back into the water path, thereby preventing the pressure inside the coffee machine from increasing.

[0040] As described above, multiple implementation methods are provided in combination with specific contents, and the specific implementation of this application is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of this application, or any technical deduction or replacement made on the premise of the concept of this application, shall be deemed to be within the scope of protection of this application.

Claims

1. The double heating water channel structure of the coffee machine is characterized by: The invention comprises a water tank mechanism (1), a first heating device (2), a multi-way valve mechanism (3), a second heating device (4), a brewing mechanism (5), a steam valve (6) and a milk froth generating mechanism (7), wherein the water tank mechanism (1) is connected to a water inlet of the first heating device (2), a water outlet of the first heating device (2) is connected to the multi-way valve mechanism (3), and the multi-way valve mechanism (3) is respectively connected to a water inlet of the brewing mechanism (5) and a water inlet of the second heating device (4) for respectively controlling the on and off of the brewing mechanism (5) and the second heating device (4), the water outlet of the second heating device (4) is connected to the steam valve (6), and the steam valve (6) is connected to the milk froth generating mechanism (7).

2. The double heating water channel structure of the coffee machine according to claim 1, characterized in that: The multi-way valve mechanism (3) comprises a first three-way solenoid valve (31).

3. The double heating water channel structure of the coffee machine according to claim 2, characterized in that: The steam valve (6) comprises a second three-way solenoid valve (61), the second three-way solenoid valve (61) being provided with a first water inlet end, a steam output end and a pressure relief end, the first water inlet end being connected to the water outlet of the second heating device (4), and the steam output end being connected to the milk froth generating mechanism (7).

4. The double heating water channel structure of the coffee machine according to claim 3, characterized in that: The pressure relief end is connected to a buffer pressure reduction box (8), and the buffer pressure reduction box (8) is connected to a waste water box (9).

5. The double heating water channel structure of the coffee machine according to claim 1, characterized in that: The multi-way valve mechanism (3) comprises a three-way pressure valve (32) and a one-way solenoid valve (33); the three-way pressure valve (32) is provided with a second water inlet end, a normally open end and a pressure on-off end; the second water inlet end is connected to the first heating device (2); the normally open end is connected to the water inlet of the one-way solenoid valve (33); the pressure on-off end is connected to the brewing mechanism (5); and the water outlet of the one-way solenoid valve (33) is connected to the second heating device (4).

6. The double heating water channel structure of the coffee machine according to claim 5, characterized in that: The steam valve (6) comprises a one-way valve (62).

7. The double heating water channel structure of the coffee machine according to claim 2, characterized in that: The water tank mechanism (1) comprises a water tank (11), a water pump (12) connected to the water tank (11), and a safety valve (13) connected between the water pump (12) and the first heating device (2).

8. The double heating water channel structure of the coffee machine according to claim 4, characterized in that: A plurality of pressure reduction baffles (81) are arranged in the buffer pressure reduction box (8).

9. A coffee machine, characterized in that It comprises the double heating water path structure of the coffee machine as described in any one of claims 1 to 8.

10. The coffee machine according to claim 9, characterized in that The invention also comprises a base (101) and a milk box (102); the base (101) is provided with a limiting portion (103) for limiting the cooperation with the milk box (102); the base (101) is also provided with a detector (104) for detecting whether the milk box (102) is installed in place.

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