Instant heating type coffee machine

Abstract

The invention discloses an instant heating type coffee machine, which comprises a coffee extraction device and a steam discharge pipe, and is characterized by further comprising an instant heating type heater, a change-over valve and a transfer water tank, the change-over valve is provided with an inlet, a steam outlet and a first hot water outlet, the discharge port of the instant heating type heater is connected with the inlet, and the steam outlet is connected with the transfer water tank. The steam discharge pipe is connected with the steam outlet, and the transfer water tank is connected with the first hot water outlet and the coffee extraction device; according to the instant heating type coffee machine, hot water and steam can be output through cooperation of the instant heating type heater and the change-over valve, that is, hot water and steam output share the same instant heating type heater, the number of parts involved in the whole coffee machine is small, the connecting structure is simple, meanwhile, the heating efficiency of the instant heating type heater is high, the overall working efficiency of the coffee machine can be improved, and in addition, the instant heating type heater is convenient to use. And the transfer water tank can play a role in storing a certain amount of hot water, so that the stability of subsequent coffee brewing is facilitated.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of coffee machines, and in particular to an instant coffee machine. Background Art

[0002] The existing coffee machine, see Chinese utility model patent number: 2021214774215, name: a fancy coffee machine, authorization announcement date: July 1, 2022, which includes a base, a water tank, a coffee machine body, a steam device and a foaming device; the water tank, the coffee machine body and the foaming device are all arranged on the base; the water outlet end of the water tank is connected to the water inlet end of the coffee machine body, the steam device is arranged in the coffee machine body and connected to the water outlet end of the coffee machine body, and the steam inlet of the foaming device is connected to the steam outlet of the steam device; the foaming device has a lever, a micro switch is arranged in the coffee machine body, the micro switch is electrically connected to the steam device, and the lever is movably connected to the micro switch. The fancy coffee machine of the utility model is provided with a lever and a micro switch inside the foaming device and the coffee machine body respectively, so that when the foaming device is not turned on, the micro switch remains in a closed state, so that the steam device cannot work normally, prevents steam from spraying out and injuring people, and eliminates safety hazards.

[0003] The steam device is a steam boiler, which is connected to the water tank and the frothing device respectively. The steam boiler can produce steam for frothing milk. The coffee machine body is provided with a water pump, a coffee boiler and a coffee brewing bucket. The coffee boiler can produce hot water to flow to the coffee brewing bucket to produce coffee liquid. However, the coffee machine with the above structure still has the following deficiencies: (1) The steam boiler and the coffee boiler are connected through different water channels and water tanks, and are respectively connected to the corresponding frothing device or coffee brewing bucket, that is, the hot water output and the steam output are two independent systems, which involve many parts and the overall connection structure of the product is complicated. Summary of the invention

[0004] The object of the present invention is to solve the deficiencies of the above-mentioned prior art and to provide an instant coffee machine which shares a common instant heater, involves fewer parts as a whole, has a simple connection structure and has high heating efficiency.

[0005] The object of the present invention is achieved in that: An instant coffee machine comprises a coffee extraction device and a steam exhaust pipe, and is characterized in that it also comprises an instant heating heater, a conversion valve and a transfer water tank, the conversion valve is provided with an inlet, a steam outlet and a first hot water outlet, the exhaust port of the instant heating heater is connected to the inlet, the steam exhaust pipe is connected to the steam outlet, and the transfer water tank is respectively connected to the first hot water outlet and the coffee extraction device; this instant coffee machine can realize hot water and steam output through the cooperation of the instant heating heater and the conversion valve, that is: the hot water output and the steam output share the same instant heating heater, the overall product involves fewer parts and a simple connection structure, and at the same time, the instant heating heater has high heating efficiency, which can improve the overall working efficiency of the coffee machine, and the transfer water tank can store a certain amount of hot water, which is conducive to the stability of subsequent coffee brewing.

[0006] The purpose of the present invention can also be solved by the following technical measures: Specifically, it also includes a shell and a control circuit board. The control circuit board, the instant thermal heater, the conversion valve and the transfer water tank are all placed in the shell and the instant thermal heater is electrically connected to the control circuit board. The coffee extraction device and the steam exhaust pipe are arranged on the shell. The shell provides a stable installation carrier for the control circuit board, the instant thermal heater, the conversion valve and the transfer water tank, which is conducive to the stable operation of each component.

[0007] Specifically, the shell is further provided with a water outlet, the conversion valve is provided with a second hot water outlet and the second hot water outlet is connected to the water outlet, the conversion valve is provided with movable valve stems corresponding to the steam outlet, the first hot water outlet and the second hot water outlet, and the inlet and the steam outlet, the inlet and the first hot water outlet, and the inlet and the second hot water outlet are all closed or connected by the corresponding movable valve stems; so that the user can control the corresponding hot water or steam output through the movable valve stem, and the operation is simple and convenient. At the same time, the second hot water outlet can be used to discharge drinking water in conjunction with the water outlet, so that this coffee machine can meet more user needs.

[0008] Specifically, it also includes a rotary switch and a first micro switch. The first micro switch is arranged on one side of the conversion valve and is electrically connected to the control circuit board. When the rotary switch is rotated, the rotary switch pushes the movable valve stem corresponding to the first hot water outlet and touches the first micro switch, so that the inlet and the first hot water outlet are connected, and the control circuit board receives the signal of the first micro switch; so that the control circuit board can subsequently control the instant heater to perform corresponding work (discharge coffee brewing water), which is safer to use. In addition, the rotary switch can operate the movable valve stem and the first micro switch at the same time. It is cleverly arranged and safer to use.

[0009] Specifically, it also includes a second micro switch, which is arranged on the other side of the conversion valve and is electrically connected to the control circuit board. When the rotary switch is rotated, the rotary switch pushes the movable valve stem corresponding to the second hot water outlet and touches the second micro switch, so that the inlet and the second hot water outlet are connected, and the control circuit board receives the signal of the second micro switch; so that the control circuit board can subsequently control the instant heater to perform corresponding work (output drinking hot water), which is safer to use. In addition, the rotary switch can operate the movable valve stem and the second micro switch at the same time. It is cleverly set and safer to use.

[0010] Specifically, it also includes a steam valve, both ends of which are connected to the steam outlet and the steam discharge pipe respectively, and the steam valve is provided with a third micro switch and a rotatable steam switch, and the third micro switch is electrically connected to the control circuit board. The steam switch is rotated to conduct the inside of the steam valve and the control circuit board receives the signal of the third micro switch at the same time; so that the control circuit board can subsequently control the instant heater to perform corresponding work (steam output), which is safer to use. Furthermore, the steam switch can conduct the inside of the steam valve and the third micro switch at the same time, and its arrangement is ingenious and safer to use.

[0011] Specifically, it also includes a first water pump, a second water pump and a pressure relief valve, an outer water tank is also arranged on the shell, two ends of the first water pump are respectively connected to the transfer water tank and the pressure relief valve, the pressure relief valve is connected to the coffee extraction device and the reflux port on the pressure relief valve is connected to the outer water tank, two ends of the second water pump are respectively connected to the outer water tank and the instant heater, the first water pump and the second water pump are electrically connected to the control circuit board; so that the user can control the water output of the transfer water tank through the first water pump and the water output of the outer water tank through the second water pump, and control the operation of the first water pump and the second water pump through the control circuit board, which is beneficial to the overall water circuit balance and stability of the coffee machine, and its implementation effect is good. Furthermore, the pressure relief valve can release the hot water pressure in the transfer water tank, which is beneficial to the subsequent stable and safe brewing of coffee.

[0012] Specifically, it also includes a mounting bracket, which is fixed in the shell, and the instantaneous heater, the conversion valve, the transfer water tank, the first water pump, the second water pump and the pressure relief valve are all fixed on the mounting bracket; so that the instantaneous heater, the conversion valve, the transfer water tank, the first water pump, the second water pump, the pressure relief valve and the mounting bracket form an integral module, which is simple and convenient to install. At the same time, this integral module can also be applied to other equipment, and its versatility is relatively wide.

[0013] Specifically, the mounting bracket is a Z-shaped frame, which includes a bottom wall, side walls and a top wall that are connected to each other. The bottom wall is fixed to the bottom of the shell, the first water pump is fixed to the bottom wall, the instant hot heater, the transfer water tank and the pressure relief valve are fixed to the side walls in a side-by-side manner, the second water pump is fixed to one side of the instant hot heater, and the conversion valve is fixed to the top wall; the instant hot heater, the conversion valve, the transfer water tank, the first water pump, the second water pump and the pressure relief valve are arranged on the mounting frame more compactly, reducing the volume of the overall module. At the same time, the above-mentioned components are independently arranged on the bottom wall, side wall and top wall of the Z-shaped frame, which is conducive to the independent and stable operation of each component. In addition, the structure of the Z-shaped frame is simple and easy to implement.

[0014] Specifically, a water level sensor is provided in the transfer water tank, and the water level sensor is electrically connected to the control circuit board; so that the control circuit board can monitor the amount of hot water in the transfer water tank in real time, and the control circuit board can control corresponding electrical components (such as: instant heater) to perform corresponding work to ensure the water level in the transfer water tank.

[0015] The beneficial effects of the present invention are as follows: (1) This instant coffee machine can produce hot water and steam by cooperating with an instant heater and a conversion valve. That is, the hot water and steam use the same instant heater, the product as a whole involves fewer parts, and the connection structure is simple. At the same time, the instant heater has high heating efficiency, which can improve the overall working efficiency of the coffee machine. In addition, the transfer water tank can store a certain amount of hot water, which is conducive to the stability of subsequent coffee brewing.

[0016] (2) The user controls the corresponding hot water or steam output through the movable valve stem, which is simple and convenient to operate. At the same time, the second hot water outlet can be used to output drinking water in conjunction with the water outlet nozzle, so that this coffee machine can meet more user needs.

[0017] (3) The instantaneous heater, the conversion valve, the transfer water tank, the first water pump, the second water pump, the pressure relief valve and the mounting bracket form an integral module, which is easy and convenient to install. At the same time, this integral module can also be applied to other equipment and has wide versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the instant coffee machine of the present invention.

[0019] Figure 2 It is a first cross-sectional view of the instant coffee machine of the present invention.

[0020] Figure 3 Schematic diagram of the conversion valve of the present invention.

[0021] Figure 4 This is a first cross-sectional view of the conversion valve of the present invention.

[0022] Figure 5 This is a second cross-sectional view of the conversion valve of the present invention.

[0023] Figure 6 It is a first cross-sectional view of the instant coffee machine of the present invention.

[0024] Figure 7 This is a schematic diagram of the instant coffee machine of the present invention after the upper shell is removed.

[0025] Figure 8 The figure is a schematic diagram of the water circuit principle of the instant coffee machine of the present invention.

[0026] Fig. 9 The figure is a schematic diagram of the circuit principle of the instant coffee machine of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Example, combined with Figures 1 to 9 As shown, an instant coffee machine includes a coffee extraction device 1 and a steam exhaust pipe 2, and is characterized in that it also includes an instant heating heater 3, a conversion valve 4 and a transfer water tank 5, the conversion valve 4 is provided with an inlet 41, a steam outlet 42 and a first hot water outlet 43, the exhaust port 31 of the instant heating heater 3 is connected to the inlet 41, the steam exhaust pipe 2 is connected to the steam outlet 42, and the transfer water tank 5 is respectively connected to the first hot water outlet 43 and the coffee extraction device 1.

[0028] As a specific solution, it also includes a shell 6 and a control circuit board 7. The control circuit board 7, the instant heater 3, the conversion valve 4 and the transfer water tank 5 are all placed in the shell 6, and the instant heater 3 is electrically connected to the control circuit board 7. The coffee extraction device 1 and the steam exhaust pipe 2 are arranged on the shell 6; the control circuit board 7 is produced by Foshan Shunde Kaixiang Electric Co., Ltd. and the model is LJ-001.

[0029] In this embodiment, a water outlet 61 is further provided on the shell 6, a second hot water outlet 44 is provided on the conversion valve 4 and the second hot water outlet 44 is connected to the water outlet 61, and the conversion valve 4 is provided with a movable valve stem 8 corresponding to the steam outlet 42, the first hot water outlet 43 and the second hot water outlet 44, and the inlet 41 and the steam outlet 42, the inlet 41 and the first hot water outlet 43, and the inlet 41 and the second hot water outlet 44 are all closed or connected by the corresponding movable valve stems 8.

[0030] As a more specific solution, it also includes a rotary switch 9 and a first micro switch 10. The first micro switch 10 is arranged on one side of the conversion valve 4 and is electrically connected to the control circuit board 7. When the rotary switch 9 is rotated, the rotary switch 9 pushes the movable valve stem 8 corresponding to the first hot water outlet 43 and touches the first micro switch 10, so that the inlet 41 and the first hot water outlet 43 are connected, and the control circuit board 7 receives the signal of the first micro switch 10.

[0031] In this embodiment, a second micro switch 20 is further included. The second micro switch 20 is arranged on the other side of the conversion valve 4 and is electrically connected to the control circuit board 7. When the rotary switch 9 is rotated, the rotary switch 9 pushes the movable valve stem 8 corresponding to the second hot water outlet 44 and touches the second micro switch 20, so that the inlet 41 and the second hot water outlet 44 are connected, and the control circuit board 7 receives the signal of the second micro switch 20.

[0032] More specifically, a water vapor separation device is provided on the second hot water outlet 44 to facilitate the discharge of the steam of the drinking water to prevent the user from being scalded by the steam when receiving the drinking water. The water vapor separation device is not shown.

[0033] In this embodiment, a steam valve 30 is also included, and both ends of the steam valve 30 are respectively connected to the steam outlet 42 and the steam exhaust pipe 2. A third micro switch 301 and a rotatable steam switch 302 are provided on the steam valve 30. The third micro switch 301 is electrically connected to the control circuit board 7. The steam switch 302 is rotated to conduct the inside of the steam valve 30 and the control circuit board 7 receives the signal of the third micro switch 301.

[0034] Before turning the steam switch 302, the user needs to first operate the rotary switch 9, push the movable valve stem 8 corresponding to the steam outlet 42, and make the inlet 41 of the conversion valve 4 and the steam outlet 42 conductive; that is, the rotary switch 9 and the steam switch 302 need to be operated when steam is discharged, which is safer to use.

[0035] As a more preferred embodiment, it also includes a first water pump 40, a second water pump 50 and a pressure relief valve 60. The shell 6 is also provided with an external water tank 70. The two ends of the first water pump 40 are respectively connected to the transfer water tank 5 and the pressure relief valve 60. The pressure relief valve 60 is connected to the coffee extraction device 1 and the reflux port 601 on the pressure relief valve 60 is connected to the external water tank 70. The two ends of the second water pump 50 are respectively connected to the external water tank 70 and the instant heater 3. The first water pump 40 and the second water pump 50 are electrically connected to the control circuit board 7. The first water pump 40 and the second water pump 50 are DC diaphragm water pumps produced by Ningbo Jiayin Electromechanical Technology Co., Ltd., and the model is JYPDM-3A028-H.

[0036] As a more preferred embodiment, it also includes a mounting bracket 80, which is fixed in the shell 6, and the thermal heater 3, the conversion valve 4, the transfer water tank 5, the first water pump 40, the second water pump 50 and the pressure relief valve 60 are all fixed on the mounting bracket 80.

[0037] In this embodiment, the mounting bracket 80 is a Z-shaped frame, which includes a bottom wall 801, a side wall 802 and a top wall 803 that are connected to each other. The bottom wall 801 is fixed to the bottom of the shell 6, the first water pump 40 is fixed to the bottom wall 801, the instant heater 3, the transfer water tank 5 and the pressure relief valve 60 are fixed to the side wall 802 in a side-by-side manner, the second water pump 50 is fixed to one side of the instant heater 3, and the conversion valve 4 is fixed to the top wall 803.

[0038] More specifically, the housing 6 includes a base 62 and an upper shell 63 , and the bottom wall 801 of the Z-shaped frame is fixed on the base 62 .

[0039] As a more specific solution, a water level sensor 51 is provided in the transfer water tank 5 , and the water level sensor 51 is electrically connected to the control circuit board 7 .

[0040] The circuit working principle of the three micro switches is as follows: the first micro switch 10, the second micro switch 20 and the third micro switch 301 are normally closed switches, which are electrically connected to the control circuit board 7 respectively, and the three respectively limit the use of the corresponding coffee brewing water, hot water and steam discharge functions on the control circuit board 7. When the first micro switch 10 is touched, the control circuit board 7 receives the signal of the first micro switch 10 and releases the restriction on the coffee brewing water discharge function. At this time, the user touches or presses the corresponding coffee brewing water function key on the control circuit board 7, and the control circuit board 7 can control the corresponding electrical component (instantaneous heater 3) to perform corresponding work (discharge coffee brewing water); it is safer and more stable to use.

Claims

1. An instant coffee machine, comprising a coffee extraction device (1) and a steam exhaust pipe (2), characterized in that: It also includes an instantaneous heating heater (3), a conversion valve (4) and a transfer water tank (5); the conversion valve (4) is provided with an inlet (41), a steam outlet (42) and a first hot water outlet (43); the discharge outlet (31) of the instantaneous heating heater (3) is connected to the inlet (41); the steam discharge pipe (2) is connected to the steam outlet (42); and the transfer water tank (5) is respectively connected to the first hot water outlet (43) and the coffee extraction device (1).

2. The instant coffee machine according to claim 1, characterized in that: It also includes a housing (6) and a control circuit board (7); the control circuit board (7), the instant heating heater (3), the conversion valve (4) and the transfer water tank (5) are all placed in the housing (6); the instant heating heater (3) is electrically connected to the control circuit board (7); and the coffee extraction device (1) and the steam exhaust pipe (2) are arranged on the housing (6).

3. The instant coffee machine according to claim 2, characterized in that: The housing (6) is also provided with a water outlet (61); the conversion valve (4) is provided with a second hot water outlet (44) and the second hot water outlet (44) is connected to the water outlet (61); the conversion valve (4) is provided with movable valve stems (8) corresponding to the steam outlet (42), the first hot water outlet (43) and the second hot water outlet (44); the inlet (41) and the steam outlet (42), the inlet (41) and the first hot water outlet (43), and the inlet (41) and the second hot water outlet (44) are all closed or connected by the corresponding movable valve stems (8).

4. The instant coffee machine according to claim 3, characterized in that: The invention also comprises a rotary switch (9) and a first micro switch (10), wherein the first micro switch (10) is arranged on one side of the conversion valve (4) and is electrically connected to the control circuit board (7); when the rotary switch (9) is rotated, the rotary switch (9) pushes the movable valve stem (8) corresponding to the first hot water outlet (43) and triggers the first micro switch (10), so that the inlet (41) and the first hot water outlet (43) are connected, and at the same time the control circuit board (7) receives a signal from the first micro switch (10).

5. The instant coffee machine according to claim 4, characterized in that: The invention also comprises a second micro switch (20), which is arranged on the other side of the conversion valve (4) and is electrically connected to the control circuit board (7). When the rotary switch (9) is rotated, the rotary switch (9) pushes the movable valve stem (8) corresponding to the second hot water outlet (44) and triggers the second micro switch (20), so that the inlet (41) and the second hot water outlet (44) are connected, and the control circuit board (7) receives a signal from the second micro switch (20).

6. The instant coffee machine according to claim 5, characterized in that: The device also comprises a steam valve (30), wherein two ends of the steam valve (30) are respectively connected to a steam outlet (42) and a steam discharge pipe (2), and a third micro switch (301) and a rotatable steam switch (302) are provided on the steam valve (30), wherein the third micro switch (301) is electrically connected to a control circuit board (7), and the steam switch (302) is rotated so that the interior of the steam valve (30) is turned on and the control circuit board (7) receives a signal from the third micro switch (301).

7. The instant coffee machine according to claim 2, characterized in that: The invention also comprises a first water pump (40), a second water pump (50) and a pressure relief valve (60); an outer water tank (70) is further arranged on the housing (6); two ends of the first water pump (40) are respectively connected to the transfer water tank (5) and the pressure relief valve (60); the pressure relief valve (60) is connected to the coffee extraction device (1); and a reflux port (601) on the pressure relief valve (60) is connected to the outer water tank (70); two ends of the second water pump (50) are respectively connected to the outer water tank (70) and the instant heater (3); and the first water pump (40) and the second water pump (50) are electrically connected to the control circuit board (7).

8. The instant coffee machine according to claim 7, characterized in that: It also includes a mounting bracket (80), which is fixed in the housing (6), and the instantaneous heater (3), the conversion valve (4), the transfer water tank (5), the first water pump (40), the second water pump (50) and the pressure relief valve (60) are all fixed on the mounting bracket (80).

9. The instant coffee machine according to claim 8, characterized in that: The mounting bracket (80) is a Z-shaped frame body, which comprises a bottom wall (801), a side wall (802) and a top wall (803) connected to each other. The bottom wall (801) is fixed to the bottom of the housing (6), the first water pump (40) is fixed to the bottom wall (801), the instantaneous heating heater (3), the transfer water tank (5) and the pressure relief valve (60) are fixed to the side wall (802) in a side-by-side manner, the second water pump (50) is fixed to one side of the instantaneous heating heater (3), and the conversion valve (4) is fixed to the top wall (803).

10. The instant coffee machine according to claim 1, characterized in that: A water level sensor (51) is provided in the transfer water tank (5), and the water level sensor (51) is electrically connected to the control circuit board (7).

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