Coffee machine with electric control circulating water path

Abstract

The utility model relates to a coffee machine with an electric control circulating water path, which comprises a brewing head, a water inlet part, a water outlet part and a brewing handle, when the brewing handle is in the preheating state, the water inlet part is not communicated with the water outlet part, and when the brewing handle is switched to the brewing state, the water inlet part of the brewing head is communicated with the water outlet part, the brewing handle touches the touch switch, and the water outlet part of the brewing head is communicated with the water outlet part of the brewing handle; according to the utility model, the circulating water path suite can be utilized to carry out electric control circulating heating on the brewing head when the brewing head is started, and in the preheating process of the brewing head, manual water replenishing and heating operation is not needed, so that the brewing head is convenient to use. According to the utility model, for a user, the heating process of the brewing head is more convenient.

Description

Technical Field

[0001] This utility model relates to a coffee machine with an electronically controlled circulating water circuit, which includes a built-in circulating water circuit kit containing a heater to facilitate heating of the brewing head. Background Technology

[0002] Coffee is a very popular beverage in modern life. In addition to its unique flavor, it also has a stimulating effect. Therefore, various manufacturers offer a variety of coffee brewing equipment on the market to meet different flavor requirements. With the advancement of technology and the maturity of coffee brewing procedures, commercially available coffee equipment can meet the coffee brewing needs of most people, making it a very good choice for many consumers.

[0003] However, commercially available coffee brewing equipment still has some problems, which prevent it from meeting the needs of some consumers with higher demands. For example, preheating the brew head is a very important part of coffee brewing. However, the preheating process of some coffee brewing equipment is quite complicated for users. The common steps are to use an alcohol lamp or a stove to heat the water in the container, then operate the handle of the coffee brewing equipment to make the heated water flow to the brew head and then discharge it. If the water in the container is used up, water must be added and heated again. Repeat the above steps until the brew head reaches the ideal temperature, which completes the preheating of the brew head.

[0004] As can be seen from the above, in the past, the preheating process of coffee brewing equipment required users to manually add water and heat the brewing head repeatedly, which is a problem that needs to be improved. Utility Model Content

[0005] This utility model includes a circulating water circuit kit. When the utility model is started, it can use the circulating water circuit kit to electrically control the heating of the brewing head. Therefore, during the preheating process of the brewing head, if the water tank is replenished with sufficient water, there is no need for manual water replenishment or heating operations. Compared with existing products, this utility model is more convenient for users in the heating process of the brewing head.

[0006] To achieve the above objectives and effects, this utility model provides a coffee machine with an electrically controlled circulating water circuit, comprising: a brewing head, including a water inlet, a water outlet, and a brewing handle; a circulating water circuit assembly, including a water outlet pipe, a water return pipe, a water tank, a solenoid valve, a water pump, a control module, a pressure switch, and a heater, wherein the control module is electrically connected to the solenoid valve, the water pump, the pressure switch, and the heater, and the water outlet pipe and the water return pipe are respectively connected to the water tank at one end. The water pipe and the return water pipe are respectively connected to the water inlet at their other ends. The solenoid valve is installed in the return water pipe. The water pump is installed in either the water outlet pipe or the return water pipe. The heater is installed in the water outlet pipe. When the cooking handle is in the preheating state, the water inlet and the water outlet are not connected. When the cooking handle is switched to the cooking state, the water inlet and the water outlet of the cooking head are connected. The cooking handle presses the touch switch. When the touch switch is pressed, the control module controls the solenoid valve to block the return water pipe.

[0007] Furthermore, the brewing head is an E61 brewing head.

[0008] It further includes a manual pressure control assembly and a first check valve, which are installed in the water outlet pipeline. The first check valve is located between the manual pressure control assembly and the water tank.

[0009] Furthermore, the manual pressure control assembly includes a force-saving gear set, a rack, a piston, a pressure control cylinder, and a pressure control handle. The pressure control cylinder is disposed in the water outlet pipe and is internally connected to the water outlet pipe. The piston is located inside the pressure control cylinder, the rack is connected to the piston, the force-saving gear set is meshed with the rack, and the pressure control handle is assembled into the force-saving gear set.

[0010] It further includes a housing, inside which the circulating water circuit kit is located.

[0011] The device further includes a blow-cleaning mode switch, a micro air pump, and a second one-way valve. The control module is electrically connected to the blow-cleaning mode switch and the micro air pump. One end of the second one-way valve is connected to the water outlet pipe, and the other end of the second one-way valve is connected to the micro air pump. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the preheating mode of the brewing head of this utility model.

[0013] Figure 2 This is a block diagram of the electrical control system of this utility model.

[0014] Figure 3 This is a side view of the preheating mode of the brewing head of this utility model.

[0015] Figure 4 This is a schematic diagram of the preheating mode of the brewing head of this utility model.

[0016] Figure 5 This is a side view of the coffee extraction mode of this utility model.

[0017] Figure 6 This is a schematic diagram of the internal structure of the coffee extraction mode of this utility model.

[0018] Figure 7 This is a schematic diagram of the internal workings of the cleaning mode of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1: Pour-over head;

[0021] 11: Water entry part;

[0022] 12: Water outlet section;

[0023] 13: Brewing handle;

[0024] 2: Circulating water circuit kit;

[0025] 21: Water outlet pipe;

[0026] 22: Return water pipe;

[0027] 23: Water tank;

[0028] 24: Solenoid valve;

[0029] 25: Water pump;

[0030] 26: Control module;

[0031] 27: Touch switch;

[0032] 28: Heater;

[0033] 3: Manual pressure control kit;

[0034] 31: Labor-saving gear set;

[0035] 32: rack and pinion;

[0036] 33: Piston;

[0037] 34: Pressure control cylinder;

[0038] 35: Pressure control handle;

[0039] 36: First check valve;

[0040] 4: Outer shell;

[0041] 5: Cleaning mode switch button;

[0042] 6: Miniature air pump;

[0043] 7: Second check valve;

[0044] 8: Power button. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention. Figures 1 to 6 Presented herein, this utility model is a coffee machine with an electrically controlled circulating water circuit, comprising: a brewing head 1, which includes a water inlet 11, a water outlet 12, and a brewing handle 13; a circulating water circuit assembly 2, which includes a water outlet pipe 21, a water return pipe 22, a water tank 23, a solenoid valve 24, a water pump 25, a control module 26, a pressure switch 27, and a heater 28. The control module 26 is electrically connected to the solenoid valve 24, the water pump 25, the pressure switch 27, and the heater 28. The water outlet pipe 21 and the water return pipe 22 are each connected to the water tank 23 at one end. The return water pipe 22 is connected to the water inlet 11 at the other end. The solenoid valve 24 is installed in the return water pipe 22. The water pump 25 is installed in either the water outlet pipe 21 or the return water pipe 22. The heater 28 is installed in the water outlet pipe 21. When the cooking handle 13 is in the preheating state, the water inlet 11 and the water outlet 12 are not connected. When the cooking handle 13 is switched to the cooking state, the water inlet 11 and the water outlet 12 of the cooking head 1 are connected, and the cooking handle 13 presses the touch switch 27. When the touch switch 27 is pressed, the control module 26 controls the solenoid valve 24 to block the return water pipe 22.

[0046] Following the above description, the embodiments of this utility model are further detailed. In actual use, this utility model must be connected to a power source (e.g., mains power) to supply the electrical control components of this utility model (see details). Figure 2 It has electricity, so watch it first. Figure 3 , Figure 4In this embodiment, the brewing head 1 is exemplified by the E61 model. When the power button 8 is operated to start the device, if the brewing handle 13 is swung downwards (preheating state), the device is in the brewing head preheating mode. The water pump 25 will draw water from the water tank 23 to the outlet pipe 21. After the water flows through the heater 28, the water temperature will rise and flow to the brewing head 1 to heat it. In this state, since the inlet 11 and the outlet 12 are not connected, the hot water flowing to the brewing head 1 will flow back to the water tank 23 through the return pipe 22, thereby achieving the circulation heating of hot water. Therefore, in the preheating process of the brewing head 1, when the water tank 23 is replenished with sufficient water, there is no need for manual water replenishment and heating operations. Compared with existing products, the device is more convenient for users in the heating process of the brewing head 1. Therefore, the device is novel and progressive.

[0047] When users such Figure 5 , Figure 6 As shown, when the brewing handle 13 is pulled upward until the touch switch 27 is pressed (brewing state), the present invention will switch to coffee extraction mode. At this time, the solenoid valve 24 blocks the return water pipe 22, and the water inlet 11 is connected to the water outlet 12. Therefore, the water inside the circulating water circuit kit 2 no longer flows back to the water tank 23 through the return water pipe 22, but flows to the water outlet 12 of the brewing head 1 to brew coffee.

[0048] For example Figures 3 to 6 The following describes a structure for manually controlling brewing pressure: a manual pressure control assembly 3 and a first one-way valve 36. The manual pressure control assembly 3 and the first one-way valve 36 are located in the water outlet pipe 21. The first one-way valve 36 is situated between the manual pressure control assembly 3 and the water tank 23. The manual pressure control assembly 3 includes a force-saving gear set 31, a rack 32, a piston 33, a pressure control cylinder 34, and a pressure control handle 35. The pressure control cylinder 34 is located in the water outlet pipe 21, and its interior is connected to the water outlet pipe 23. 1. The piston 33 is located inside the pressure control cylinder 34. The rack 32 is connected to the piston 33. The force-saving gear set 31 is geared to the rack 32. The pressure control handle 35 is combined with the force-saving gear set 31. When the present invention is in the coffee brewing mode, when the pressure control handle 35 is pressed down, the force-saving gear set 31 will drive the rack 32 to rise, and then the piston 33 will push upward to increase the internal pressure, thereby regulating the water pressure during coffee brewing. The first one-way valve 36 can prevent the water pushed out from inside the pressure control cylinder 34 from flowing back directly to the water tank 23.

[0049] The present invention may further include a housing 4, inside which the circulating water circuit kit 2 is located. Since the present invention includes many electronically controlled components, the housing 4 can provide better protection for the electronically controlled components.

[0050] The system further includes a blow-clean mode switch 5, a miniature air pump 6, and a second one-way valve 7. The control module 26 is electrically connected to the blow-clean mode switch 5 and the miniature air pump 6. One end of the second one-way valve 7 is connected to the water outlet pipe 21, and the other end of the second one-way valve 7 is connected to the miniature air pump 6. After the coffee is brewed, as follows... Figure 7 As shown, the cleaning mode can be switched to cleaning mode by using the cleaning mode switch button 5, so that the micro air pump 6 slowly supplies air to dry the residual water and dry powder in the cavity of the cooking head 1. The second one-way valve 7 is used to prevent water inside the water outlet pipe 21 from flowing back into the micro air pump 6 and damaging it.

[0051] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model, or reasonable combinations of solutions from various embodiments, are all within the protection scope of the present utility model.

Claims

1. A coffee machine with an electrically controlled circulating water circuit, characterized in that, include: A brewing head includes a water inlet, a water outlet, and a brewing handle; A circulating water circuit kit includes an outlet pipe, a return pipe, a water tank, a solenoid valve, a water pump, a control module, a pressure switch, and a heater. The control module is electrically connected to the solenoid valve, the water pump, the pressure switch, and the heater. The outlet pipe and the return pipe are each connected to the water tank at one end and to the inlet at the other end. The solenoid valve is located in the return pipe, the water pump is located in one of the outlet pipe and the return pipe, and the heater is located in the outlet pipe. When the brewing handle is in the preheating state, the water inlet and the water outlet are not connected. When the brewing handle is switched to the brewing state, the water inlet and the water outlet of the brewing head are connected, and the brewing handle presses the touch switch. When the touch switch is pressed, the control module controls the solenoid valve to block the return water pipe.

2. The coffee machine with an electrically controlled circulating water circuit as described in claim 1, characterized in that, The brewing head is an E61 brewing head.

3. The coffee machine with an electrically controlled circulating water circuit as described in claim 1, characterized in that, It further includes a manual pressure control assembly and a first check valve, wherein the manual pressure control assembly and the first check valve are disposed in the water outlet pipeline, and the first check valve is located between the manual pressure control assembly and the water tank.

4. The coffee machine with an electrically controlled circulating water circuit as described in claim 3, characterized in that, The manual pressure control assembly includes a force-saving gear set, a rack, a piston, a pressure control cylinder, and a pressure control handle. The pressure control cylinder is disposed in the water outlet pipe and is internally connected to the water outlet pipe. The piston is located inside the pressure control cylinder, the rack is connected to the piston, the force-saving gear set is geared to the rack, and the pressure control handle is assembled into the force-saving gear set.

5. The coffee machine with an electrically controlled circulating water circuit as described in claim 1, characterized in that, It further includes a housing, inside which the circulating water circuit kit is located.

6. The coffee machine with an electrically controlled circulating water circuit as described in claim 1, characterized in that, The device further includes a blow-cleaning mode switch, a micro air pump, and a second one-way valve. The control module is electrically connected to the blow-cleaning mode switch and the micro air pump. One end of the second one-way valve is connected to the water outlet pipe, and the other end of the second one-way valve is connected to the micro air pump.

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