Coffee purifying and drinking system and coffee purifying and drinking machine

Abstract

The embodiment of the invention discloses a coffee purifying and drinking system and a coffee purifying and drinking machine, the coffee purifying and drinking system comprises a filtering assembly, a water inlet waterway, a pressure-bearing instant heating module, a heating piece, a water outlet waterway and an extraction waterway, the filtering assembly is provided with a pure water outlet, and the water inlet waterway comprises a hot water inlet pipe and a hot extraction water inlet pipe; the hot water inlet pipe and the hot extraction water inlet pipe are both communicated with the pure water outlet, a water supply pump is arranged on the hot water inlet pipe, an extraction water pump is arranged on the hot extraction water inlet pipe, the pressure-bearing instant heating module is communicated with the water supply pump through the hot water inlet pipe, the heating piece is communicated with the extraction water pump through the hot extraction water inlet pipe, and the water outlet waterway is connected with the pressure-bearing instant heating module. The extraction waterway is connected with the heating piece. According to the embodiment of the invention, the problems of low coffee extraction quality and pipeline burst are solved by separating the hot water from the heating assembly required for preparing the hot coffee.

Description

Technical Field

[0001] This application relates to the field of coffee machine technology, and more specifically, to a coffee purification system and a coffee purification machine. Background Technology

[0002] In related technologies, instant heating systems are typically used when heating coffee machines. However, these instant heating systems cannot meet the stable high temperatures required for espresso, resulting in fluctuations in extraction temperature and thus reducing the quality of coffee extraction. Furthermore, the pipes connected to the instant heating system are usually non-pressurized, and excessive extraction pressure during the extraction process can cause the pipes to burst. Summary of the Invention

[0003] This application provides a coffee purification system and a coffee purifier, which aims to solve the problems of low coffee extraction quality and pipe bursts.

[0004] The first aspect of this application provides a coffee purification system applied to a coffee purifier. The system includes a filter assembly, a water inlet path, a pressurized instant heating module, a heating element, a water outlet path, and an extraction path. The filter assembly has a pure water outlet. The water inlet path includes a hot water inlet pipe and a hot extraction inlet pipe, both connected to the pure water outlet. A water supply pump is installed on the hot water inlet pipe, and an extraction pump is installed on the hot extraction inlet pipe. The pressurized instant heating module is connected to the water supply pump via the hot water inlet pipe. The heating element is connected to the extraction pump via the hot extraction inlet pipe. The water outlet path is connected to the pressurized instant heating module. The extraction path is connected to the heating element.

[0005] In some embodiments, the heating element includes one of a cast aluminum heater, a quartz heater, and an electromagnetic induction heater.

[0006] In some embodiments, the coffee purification system further includes a negative pressure valve and a flow meter. The negative pressure valve is disposed on the common section of the hot water inlet pipe and the hot extraction inlet pipe and is connected to the pure water outlet. The flow meter is disposed on the common section of the hot water inlet pipe and the hot extraction inlet pipe, and is located along the water flow direction between the negative pressure valve and the water supply pump and the extraction pump.

[0007] In some embodiments, the coffee purification system further includes a first negative pressure valve, a first flow meter, a second negative pressure valve, and a second flow meter. The first negative pressure valve is disposed on the hot water inlet pipe. The first flow meter is disposed on the hot water inlet pipe and along the water flow direction of the hot water inlet pipe, and the first flow meter is located between the first negative pressure valve and the water supply pump. The second negative pressure valve is disposed on the hot extraction inlet pipe. The second flow meter is disposed on the hot extraction inlet pipe and along the water flow direction of the hot extraction inlet pipe, and the second flow meter is located between the second negative pressure valve and the extraction pump.

[0008] In some embodiments, the water inlet path further includes a buffer noise reduction device, which is disposed on the hot extraction water inlet pipe and located between the extraction water pump and the heating element.

[0009] In some embodiments, the water inlet circuit further includes a cold water inlet pipe, a refrigeration module, a cold water pump, and a one-way valve. The cold water inlet pipe is connected to the pure water outlet and to the extraction water circuit. The refrigeration module is mounted on the cold water inlet pipe. The cold water pump is mounted on the cold water inlet pipe. The one-way valve is mounted on the cold water inlet pipe. The refrigeration module, the cold water pump, and the one-way valve are arranged sequentially along the water flow direction of the cold water inlet pipe.

[0010] In some embodiments, the one-way valve includes either a check valve or a solenoid valve.

[0011] In some embodiments, the coffee purification system further includes a water inlet solenoid valve, which is disposed on the cold water inlet pipe and located between the pure water outlet and the refrigeration module; and / or, The coffee purification system also includes a third flow meter, which is installed on the cold water inlet pipe and located between the refrigeration module and the cold water pump.

[0012] In some embodiments, the coffee purification system further includes a cold water outlet pipe connected to a cold water pump, and the cold water pump cooperates with the cold water outlet pipe to dispense cold water.

[0013] In some embodiments, the coffee purification system further includes a room temperature water outlet pipe, a room temperature water solenoid valve, and a fourth flow meter. The room temperature water outlet pipe is connected to the pure water outlet. The room temperature water solenoid valve is installed on the room temperature water outlet pipe. The fourth flow meter is installed on the room temperature water outlet pipe and is located downstream of the room temperature water solenoid valve.

[0014] In some embodiments, the water outlet path includes a water outlet pipe connected to the pressurized instant heating module, and a water outlet valve disposed on the water outlet pipe; the extraction water path includes an extraction pipe connected to the heating element and the one-way valve, and a coffee valve and an extraction device disposed sequentially on the extraction pipe along the water flow direction; wherein, the water outlet valve and the coffee valve are selectively connected, the water supply pump outputs water through the pressurized instant heating module in cooperation with the connected water outlet valve, and the extraction water pump prepares hot coffee through the heating element in cooperation with the connected coffee valve and the extraction device, or the cold water pump prepares cold coffee through the one-way valve in cooperation with the connected coffee valve and the extraction device.

[0015] In some embodiments, the water tank includes a concentrate tank and a raw water tank, the raw water tank and the concentrate tank being spaced apart, and the outlet of the raw water tank being connected to the inlet of the filter assembly.

[0016] In some embodiments, the filtration assembly further includes a first-stage filter and a second-stage filter. The first-stage filter is connected to the outlet of the raw water tank and includes a pre-filter and a post-filter, the post-filter having the pure water outlet. The second-stage filter is connected to the pre-filter and the post-filter, and also to the concentrate tank to direct wastewater to the concentrate tank.

[0017] In some embodiments, the coffee purification system further includes a steam drain pipe and a steam drain valve. The steam drain pipe is connected to the extraction water circuit and the concentrate tank. The steam drain valve is disposed on the steam drain pipe to discharge steam from the steam drain pipe to the concentrate tank.

[0018] In some embodiments, the coffee purification system further includes a steam water circuit, which includes a steam pipe and a steam valve disposed on the steam pipe, the steam pipe being connected to the extraction water circuit.

[0019] A second aspect of this application provides a coffee purifier, which includes a housing and the coffee purification system described in any one of the above embodiments. The housing has a mounting cavity, and the coffee purification system is installed in the mounting cavity.

[0020] This embodiment of the application separates the hot water output and the heating components required for preparing hot coffee. Specifically, a pressurized instant heating module heats the pure water to achieve the function of hot water output, while a heating element heats the pure water to achieve the function of hot coffee preparation. In this way, the pressurized instant heating module can meet the functions of large flow rate, instant heating and pipeline pressure required when the system outputs hot water, while the heating element can meet the functions of small flow rate and stable extraction temperature required when the system prepares coffee, thus improving the quality of coffee extraction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is one of the water circuit diagrams of a coffee purification system provided in one embodiment of this application; Figure 2 This is a second schematic diagram of the water circuit of a coffee purification system provided in one embodiment of this application; Figure 3 This is the third schematic diagram of the water circuit of a coffee purification system provided in one embodiment of this application; Figure 4 This is the fourth schematic diagram of the water circuit of a coffee purification system provided in one embodiment of this application.

[0023] Attached diagram labels: 1. Water inlet circuit; 111. Hot water inlet pipe; 112. Cold water inlet pipe; 113. Hot extraction water inlet pipe; 121. Water supply pump; 122. Extraction water pump; 13. Refrigeration module; 14. Check valve; 15. Buffer and noise reduction component; 16. Negative pressure valve; 161. First negative pressure valve; 162. Second negative pressure valve; 17. Flow meter; 171. First flow meter; 172. Second flow meter; 18. Water inlet solenoid valve; 4. Room temperature water outlet pipe; 41. Room temperature water solenoid valve; 42. Fourth flow meter; 2. Extraction circuit; 21. Extraction pipe; 221. Coffee valve; 23. 1. Extraction device; 24. Extraction nozzle; 3. Water tank; 31. Concentrate tank; 32. Raw water tank; 5. Pressurized instant heating module; 51. Heating element; 6. Water outlet path; 61. Water outlet pipe; 62. Water outlet valve; 63. Water outlet nozzle; 71. Cold water outlet pipe; 72. Cold water pump; 73. Third flow meter; 74. Cold water return pipe; 75. Cold water return pump; 76. Check valve; 8. Filter assembly; 81. First-stage filter element; 82. Second-stage filter element; 83. Pure water outlet; 9. Steam drain pipe; 91. Steam drain valve; 92. Steam pipe; 93. Steam valve; 94. Steam outlet. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] This application provides a coffee purifier, which is a comprehensive smart home appliance that combines water purification, hot water supply, and coffee extraction functions. It aims to meet users' needs for healthy water quality, convenient water dispensing, and diverse beverage preparation through an integrated design.

[0026] The coffee purifier includes a housing and a coffee purification system. The housing serves as the external structure of the coffee purifier, housing and protecting the internal coffee purification system. For example, the housing has an internal mounting cavity providing space for the coffee purification system and other internal components. The housing can be injection molded using engineering plastics such as ABS and PC, resulting in a lightweight and low-cost structure. Alternatively, the housing can be made of metal (such as stainless steel or aluminum alloy), manufactured through processes like stamping and welding. Metal housings offer a more robust structure, enhancing the product's durability and stability.

[0027] The coffee purification system is the core of a coffee purifier, responsible for functions such as water purification, heating, and coffee extraction.

[0028] The coffee purification system will be described in detail below.

[0029] Please see Figures 1-2 Specifically, the filter assembly 8 has a pure water outlet 83, that is, pure water filtered by the filter assembly 8 flows out from the pure water outlet 83.

[0030] The water inlet circuit 1 includes a hot water inlet pipe 111 and a hot extraction inlet pipe 113. Both the hot water inlet pipe 111 and the hot extraction inlet pipe 113 are connected to the pure water outlet 83. A water supply pump 121 is installed on the hot water inlet pipe 111, and an extraction water pump 122 is installed on the hot extraction inlet pipe 113. The water supply pump 121 operates to pump pure water from the pure water outlet 83 to the hot water inlet pipe 111, or the extraction water pump 122 operates to pump pure water from the pure water outlet 83 to the hot extraction inlet pipe 113. The hot water inlet pipe 111 and the hot extraction inlet pipe 113 are channels for guiding water flow, used to transport the pure water flowing out of the pure water outlet 83 to subsequent components. In this embodiment, the hot water inlet pipe 111 and the hot extraction inlet pipe 113 can be silicone tubing to adapt to different installation environments and facilitate pipe bending and arrangement. The hot water inlet pipe 111 and the hot extraction inlet pipe 113 can also be PPR (polypropylene random), which offers various connection methods (such as heat fusion connection) and good sealing to prevent leakage. Furthermore, since the hot water inlet pipe 111 connected to the outlet of the water supply pump 121 and the hot extraction inlet pipe 113 connected to the outlet of the extraction pump 122 need to withstand pressure, the inlet pipe after the pump outlet can be made of high-pressure-resistant Teflon tubing, PE tubing, etc., while the inlet pipe before the pump inlet has lower pressure or no pressure requirement; in this case, the inlet pipe before the pump inlet can be made of silicone tubing or a lower-strength plastic tubing. The water supply pump 121 and the extraction pump 122 serve as the power source for the water inlet circuit 1, driving the water flow within the circuit.

[0031] Please continue reading. Figures 1-2 The pressurized instant heating module 5 is connected to the water supply pump 121 through the hot water inlet pipe 111. That is, when the water supply pump 121 is working, it can pump the water in the hot water inlet pipe 111 to the pressurized instant heating module 5. When the pressurized instant heating module 5 is working, it is used to heat the water flowing into the pressurized instant heating module 5 in real time so that the water in the pressurized instant heating module 5 is heated to the preset temperature. The pressurized instant heating module 5 can adjust the water temperature to different levels to meet the needs of different scenarios, thereby improving the user experience.

[0032] Water outlet path 6 is connected to pressurized instant heating module 5. It is understood that in the coffee purifier system of this application embodiment, the water inlet of pressurized instant heating module 5 is connected to water supply pump 121 via hot water inlet pipe 111, and water is pumped into pressurized instant heating module 5 by water supply pump 121; the water outlet of pressurized instant heating module 5 is connected to water outlet path 6 through system control, so that the coffee purifier of this application has the function of dispensing boiling water, hot water, and room temperature water. That is, when the user needs room temperature water, the system controls pressurized instant heating module 5 to close, and pressurized instant heating module 5 is connected to water outlet path 6, so that water outlet path 6 outputs room temperature water to water outlet 63. At this time, the room temperature water needs to pass through pressurized instant heating module 5, but pressurized instant heating module 5 is in a closed state. When a user needs hot water, the system controls the pressurized instant heating module 5 to operate at a first power level, and the pressurized instant heating module 5 is connected to the water outlet circuit 6, so that the water outlet circuit 6 outputs hot water to the water outlet 63. When a user needs boiling water, the system controls the pressurized instant heating module 5 to operate at a second power level, and the pressurized instant heating module 5 is connected to the water outlet circuit 6, so that the water outlet circuit 6 outputs boiling water. Since the temperature of boiling water is higher than that of hot water, the system controls the pressurized instant heating module 5 to operate at different power levels to speed up the heating time of the water and reduce the user's waiting time.

[0033] Please continue reading. Figures 1-2 The heating element 51 is connected to the extraction water pump 122 through the hot extraction water inlet pipe 113; that is, when the extraction water pump 122 is working, it can pump the water in the hot extraction water inlet pipe 113 to the heating element 51. When the heating element 51 is working, it is used to heat the water flowing into the heating element 51 so that the water in the heating element 51 is heated to a preset temperature to meet the temperature required for the hot extraction of the system.

[0034] The extraction water path 2 is connected to the heating element 51. It is understood that in the coffee purification system of this application embodiment, the water inlet of the heating element 51 is connected to the extraction water pump 122 via the hot extraction water inlet pipe 113, and the extraction water pump 122 pumps water into the heating element 51; the water outlet of the heating element 51 is connected to the extraction water path 2 through system control, so that the coffee purifier of this application has the function of preparing hot coffee. That is, when a user needs hot coffee, the pure water in the hot extraction water inlet pipe 113 flows into the heating element 51. The heating element 51 operates at the third power to heat the pure water into hot water. The heating element 51 is connected to the extraction water path 2, and the hot water flows out along the extraction water path 2 to achieve hot coffee extraction using hot water. In the normal temperature extraction scenario, the pure water in the hot extraction water inlet pipe 113 flows into the heating element 51, but the heating element 51 is in the off state. That is, the heating element 51 does not heat the flowing pure water. The heating element 51 is connected to the extraction water path 2, and the normal temperature water flows out along the extraction water path 2 to achieve normal temperature coffee extraction using normal temperature water.

[0035] It is understood that in this embodiment of the application, when boiling or hot water is required, the pressurized instant heating module 5 heats the pure water in the hot water inlet pipe 111. The pressurized instant heating module 5 features high-flow-rate water output and pressure resistance, thus meeting the system's required water output. Furthermore, when the water supply pump 121 is operating, the pressure resistance of the pressurized instant heating module 5 prevents the hot water inlet pipe 111 from bursting or leaking, reducing the system's failure rate. Moreover, the water pressure that the pressurized instant heating module 5 can withstand is not less than the water pressure during coffee extraction in the extraction water circuit 2. It is understood that the water pressure is typically high during coffee extraction, and the pressurized instant heating module 5 can still operate stably in high-temperature environments, ensuring that the heating function has a heat resistance of not less than 100℃, guaranteeing the reliability and safety of the pressurized instant heating module 5 in high-temperature operating environments. Furthermore, at least one of the outlet and inlet ends of the pressurized instant heating module 5 is equipped with a temperature sensor to monitor the water temperature entering and exiting the module in real time, collecting data for adjusting the heating power of the module. For example, when the inlet water temperature is detected to be below the preset temperature, the system automatically increases the heating power to ensure that the outlet water temperature meets the requirements. The outlet water temperature sensor is located at the outlet end of the pressurized instant heating module 5 and is used to provide real-time feedback on the water temperature at the outlet end of the module. By comparing it with the preset temperature value, the water temperature is precisely controlled within the preset range, ensuring the stability of the water temperature.

[0036] When the system prepares hot coffee, the pure water in the hot extraction water inlet pipe 113 is heated by the heating element 51. At this time, the heating element 51 can provide the stable high temperature required for hot coffee extraction, and the extraction temperature fluctuation changes to improve the quality of coffee extraction. The heating element 51 can also meet the water pressure required for hot coffee extraction, improve the precise control of water flow, reduce the possibility of insufficient extraction or over-extraction in the system, and achieve the ultimate performance.

[0037] This embodiment separates the hot water output from the heating components required for preparing hot coffee. Specifically, the pressurized instant heating module 5 heats the pure water to achieve the function of hot water output, while the heating element 51 heats the pure water to achieve the function of hot coffee preparation. In this way, the pressurized instant heating module 5 can meet the functions of large flow rate, instant heating, and pipeline pressure required when the system outputs hot water, while the heating element 51 can meet the functions of small flow rate and stable extraction temperature required when the system prepares coffee, thus improving the quality of coffee extraction.

[0038] It should be noted that the type of heating element 51 is not specifically limited in this application embodiment. Exemplarily, the heating element 51 may include one of a cast aluminum heater, a quartz heater, or an electromagnetic induction heater. A cast aluminum heater is an electric heater with a tubular heating element as the heating body and a high-quality aluminum alloy shell formed by die casting. It achieves efficient heat conduction through the combination of the metal tubular heating element and the cast aluminum shell, thereby ensuring the uniformity of the heated surface temperature. This allows the water temperature to be heated to the range required for hot coffee extraction during the system's hot coffee extraction process; for example, the heating element 51 can heat pure water to 92°C.

[0039] Please participate Figure 2 In some embodiments, the coffee purification system further includes a negative pressure valve 16 and a flow meter 17. The negative pressure valve 16 is located on the common section of the hot water inlet pipe 111 and the hot extraction inlet pipe 113; the flow meter 17 is located on the common section of the hot water inlet pipe 111 and the hot extraction inlet pipe 113, and along the water flow direction, the flow meter 17 is positioned between the negative pressure valve 16 and the water supply pump 121 and the extraction pump 122. It is understood that the negative pressure valve 16 is located near the pure water outlet 83 and is connected to the pure water outlet 83. The negative pressure valve 16 can balance the pressure inside and outside the filter assembly 8 and the downstream components to ensure the flow meter 17 can operate stably. The negative pressure valve 16 also has a check valve function to prevent excess pure water from flowing back into the filter assembly 8, which could affect the normal operation of the coffee purification system.

[0040] Please see Figure 1 In other embodiments, the coffee purification system also includes a first negative pressure valve 161, a first flow meter 171, a second negative pressure valve 162, and a second flow meter 172.

[0041] The first negative pressure valve 161 is installed on the hot water inlet pipe 111, and the first flow meter 171 is installed on the hot water inlet pipe 111, located between the first negative pressure valve 161 and the water supply pump 121 along the water flow direction of the hot water inlet pipe 111. In this way, the first flow meter 171 detects the amount of pure water flowing through the hot water inlet pipe 111 in real time, so as to facilitate the subsequent precise control of the output of boiling water, hot water or room temperature water. The first negative pressure valve 161 is located upstream of the first flow meter 171, which can balance the pressure between the filter assembly 8 and the hot water inlet pipe 111, and prevent water in the hot water inlet pipe 111 from flowing back to the filter assembly 8.

[0042] The second negative pressure valve 162 is installed on the hot extraction water inlet pipe 113; the second flow meter 172 is installed on the hot extraction water inlet pipe 113, and along the water flow direction of the hot extraction water inlet pipe 113, the second flow meter 172 is located between the second negative pressure valve 162 and the extraction water pump 122; in this way, the second flow meter 172 detects the amount of pure water flowing through the hot extraction water inlet pipe 113 in real time, so as to facilitate the subsequent precise control of the amount of water required to prepare hot coffee. The second negative pressure valve 162 is located upstream of the second flow meter 172, which can balance the pressure between the filter assembly 8 and the hot extraction water inlet pipe 113, and prevent water in the hot extraction water inlet pipe 113 from flowing back to the filter assembly 8.

[0043] Please see Figure 3 In some embodiments, the water inlet path 1 further includes a buffer noise reduction component 15, which is disposed on the hot extraction water inlet pipe 113 and located between the extraction water pump 122 and the heating element 51. It is understood that the buffer noise reduction component 15 is a device used to reduce the noise of water flow and the extraction water pump 122. It diverts the flow through multiple channels to prevent rapid release of dissolved air from the water due to sudden pressure drops, effectively reducing high-pressure impact noise and significantly improving the user experience. Simultaneously, the buffer noise reduction component 15 can also suppress vibration harmonics generated by the extraction water pump 122, keeping the flow rate fluctuation of the extraction liquid within a stable range, effectively ensuring the pressure stability of the extraction process, and thus improving the uniformity and flavor profile of the coffee extraction.

[0044] That is, during the coffee extraction process of the coffee purifier, the extraction water pump 122 requires a large pumping pressure, which may generate significant noise, thus affecting the user experience. Therefore, this embodiment of the application provides a buffer noise reduction component 15 downstream of the extraction water pump 122. The buffer noise reduction component 15 is used to buffer the water flow passing through it, thereby reducing the noise generated by the cold water inlet pipe 112 and improving the user experience.

[0045] Please see Figures 1-2 In some embodiments, the water inlet circuit 1 further includes a cold water inlet pipe 112, a refrigeration module 13, a cold water pump 72, and a one-way valve 76.

[0046] Specifically, the cold water inlet pipe 112 is connected to the pure water outlet 83 and to the extraction water circuit 2; the refrigeration module 13 is installed on the cold water inlet pipe 112; the cold water pump 72 is installed on the cold water inlet pipe 112; and the one-way valve 76 is installed on the cold water inlet pipe 112. The refrigeration module 13, the cold water pump 72, and the one-way valve 76 are arranged sequentially along the water flow direction of the cold water inlet pipe 112. It can be understood that when a user needs cold coffee, the cold water pump 72 operates to pump pure water to the cold water inlet pipe 112. After flowing through the cold water pump 72 and the one-way valve 76, the water flows into the extraction water circuit 2, thus enabling the preparation of cold coffee using cold water.

[0047] The one-way valve 76 is used to prevent water from flowing back from the extraction water path 2 into the cold water pump 72. For example, the one-way valve 76 has a reverse pressure resistance capacity of not less than 2.0 MPa to adapt to the high-pressure working environment during the coffee extraction process. When the cold water pump 72 is working, the extraction water path 2 generates high pressure, posing a risk of high-pressure water flowing back into the cold water pump 72 and related pipelines. In this embodiment, the one-way valve 76 can quickly block the water flow through its internal sealing structure when reverse pressure occurs, preventing the pipe at the outlet of the cold water pump 72 from detaching due to excessive pressure, and preventing hot water leakage that could cause equipment damage or safety hazards. Simultaneously, the one-way valve 76 also isolates the cold water pump 72 from the high-pressure environment, preventing damage to components caused by reverse high-pressure impacts, effectively extending the service life of the cold water pump 72, and ensuring the stable operation of the cold coffee preparation function.

[0048] Please see Figure 1 as well as Figure 4 It should be noted that the check valve 76 may include a mechanical check valve or a solenoid valve. For example, when the check valve 76 is a mechanical check valve, the mechanical check valve relies on the fluid pressure itself to control the opening and closing of the valve. It has a simple structure, high reliability, requires no additional power supply, and has low cost.

[0049] For example, when the check valve 76 is a solenoid valve, the solenoid valve controls the opening and closing of the valve through electromagnetic force, which has the advantages of fast response and precise control. In a coffee purification system, the type of check valve 76 can be selected according to actual needs and cost considerations to meet different functional requirements.

[0050] In some embodiments, the coffee purification system further includes a water inlet solenoid valve 18, which is disposed on the cold water inlet pipe 112 and located between the refrigeration module 13 and the pure water outlet 83. It is understood that the refrigeration module 13 is used to convert pure water into cold water and ice cubes, and the type of refrigeration module 13 is not specifically limited in this application embodiment. Exemplarily, the refrigeration module 13 may be an ice chamber assembly or a refrigeration compressor system, etc., which has an internal ice water tank capable of storing cold water and ice cubes, thus enabling the coffee purification system to quickly dispense cold water. When the water level in the ice water tank is low, the control module can control the water inlet solenoid valve 18 to open, allowing pure water to flow into the refrigeration module 13 through the cold water inlet pipe 112; when the water level in the ice water tank is high or the coffee purification system does not require cold water, the control module controls the water inlet solenoid valve 18 to close.

[0051] It should be noted that the embodiments of this application do not specifically limit the capacity of the ice water tank. For example, the capacity of the ice water tank can be 0.5L, 0.6L, 0.8L, 1L, etc. Furthermore, the shape of the ice blocks produced by the ice water tank can be square, spherical, bullet-shaped, etc. The method of removing the ice blocks can be by mechanically rotating them out of the ice water tank; the embodiments of this application do not specifically limit this method.

[0052] Please see Figures 1-2 In some embodiments, the coffee purification system also includes a third flow meter 73, which is installed on the cold water inlet pipe 112 and located between the refrigeration module 13 and the cold water pump 72, for real-time monitoring of the cold water inlet volume, so as to accurately control the water volume required for subsequent use of cold coffee or cold water, thereby improving the precise control of water usage in the coffee purification system.

[0053] Please continue reading. Figures 1-2 In some embodiments, the coffee purification system also includes a cold water outlet pipe 71, which is connected to a cold water pump 72. The cold water pump 72 works in conjunction with the cold water outlet pipe 71 to dispense cold water. It is understood that when a user needs cold water, the water outlet 63 is opened, and the cold water pump 72 operates. Under the action of the cold water pump 72, the cold water in the refrigeration module 13 can be pumped into the cold water outlet pipe 71, flows through the cold water pump 72, and then flows out from the water outlet 63. This achieves the function of the coffee purification system in preparing cold water.

[0054] The cold water pump 72 directly provides extraction pressure for cold extraction. This requires the cold water pump 72 to provide an extraction pressure of not less than 3 bar, and the water flow rate pumped out by the cold water pump 72 can be adjusted according to the required duration and concentration of cold extraction. For example, the water flow rate pumped out by the cold water pump 72 at this extraction pressure is less than 50 ml / min.

[0055] Please see Figure 1 In some embodiments, the coffee purification system further includes a room temperature water outlet pipe 4, a room temperature water solenoid valve 41, and a fourth flow meter 42. The room temperature water outlet pipe 4 is connected to the pure water outlet 83; the room temperature water solenoid valve 41 is installed on the room temperature water outlet pipe 4; the fourth flow meter 42 is installed on the room temperature water outlet pipe 4, and the fourth flow meter 42 is located downstream of the room temperature water solenoid valve 41.

[0056] When the user needs room temperature water, the water outlet 63 opens, and the room temperature water solenoid valve 41 opens. This allows pure water from the pure water outlet 83 to flow into the room temperature water outlet pipe 4, and then through the room temperature water solenoid valve 41 and the fourth flow meter 42 before flowing back to the water outlet 63, thus enabling the coffee purification system to dispense room temperature water. The fourth flow meter 42 is used to monitor the flow rate of room temperature water in real time, improving the precise control of water usage in the coffee purification system.

[0057] Because the cooling module 13 can store chilled water, and if the chilled water is stored in the cooling module 13 for a long time, it will affect the quality of the chilled water. Therefore, please continue reading. Figure 1 In some embodiments, the coffee purification system also includes a cold water return pipe 74 and a cold water return pump 75.

[0058] Specifically, the cold water return pipe 74 is connected to the refrigeration module 13 and the filter assembly 8. That is, one end of the cold water return pipe 74 is connected to the water outlet of the refrigeration module 13, and the other end is connected to the filter assembly 8. The cold water return pump 75 is installed on the cold water return pipe 74 to return the cold water in the refrigeration module 13 to the filter assembly 8. It can be understood that the coffee purification system can be set with a preset cold water return command and sent to the control module periodically. The control module is electrically connected to the cold water return pump 75 to control the cold water return pump 75 to open, so that the cold water in the refrigeration module 13 flows into the cold water return pipe 74 and then into the filter assembly 8. The filter assembly 8 filters and sterilizes the cold water, thereby improving the water quality. Furthermore, after the cold water in the refrigeration module 13 flows into the filter assembly 8 through the cold water return pipe 74, the control module can control the water inlet solenoid valve 18 to open so that the pure water from the pure water outlet 83 flows into the refrigeration module 13 through the cold water inlet pipe 112.

[0059] Of course, in some embodiments, the refrigeration module 13 is equipped with a sterilization device to further sterilize the cold water in the refrigeration module 13 in a timely manner, so as to ensure the water quality of the cold water.

[0060] Please see Figures 1-2 In some embodiments, the water outlet path 6 includes a water outlet pipe 61 connected to the pressurized instant heating module 5, and a water outlet valve 62 disposed on the water outlet pipe 61; the extraction water path 2 includes an extraction pipe 21 connected to the heating element 51 and the one-way valve 76, and a coffee valve 221 and an extraction device 23 disposed sequentially on the extraction pipe 21 along the water flow direction; wherein, the water outlet valve 62 and the coffee valve 221 are selectively connected; that is, by selectively connecting the coffee valve 221 and the water outlet valve 62, different functions can be switched, and the water supply pump 121 cooperates with the pressurized instant heating module 5 to output water in conjunction with the connected water outlet valve 62, and the extraction water pump 122 cooperates with the heating element 51 in conjunction with the connected coffee valve 221 and the extraction device 23 to prepare coffee, or the cold water pump 72 cooperates with the one-way valve 76 in conjunction with the connected coffee valve 221 and the extraction device 23 to prepare cold coffee.

[0061] For example, when a user needs hot water, the control module controls the outlet valve 62 to connect with the pressurized instant heating module 5. The water pump 121 delivers water to the pressurized instant heating module 5 for heating, and then the water flows out through the outlet valve 62 and the outlet nozzle 63 of the outlet pipe 61. When a user needs hot coffee, the control module controls the coffee valve 221 to connect with the heating element 51. The extraction water pump 122 pumps water to the heating element 51, and then the water enters the extraction device 23 through the connected coffee valve 221 to complete the coffee making process. The coffee then flows out from the extraction nozzle 24 of the extraction pipe 21. When a user needs cold coffee, the control module controls the coffee valve 221 to connect with the one-way valve 76. The cold water pump 72 pumps cold water from the cooling module 13 to the extraction pipe 21, and then the cold water flows through the coffee valve 221 into the extraction device 23 to prepare cold coffee, which then flows out from the extraction nozzle 24.

[0062] The switching and coordination mechanism of the water outlet valve 62 and coffee valve 221 makes the hot water supply and coffee extraction functions independent of each other and do not affect each other. At the same time, it can quickly switch the working mode according to the user's needs, improve the convenience of operation, and further optimize the multi-functionality of the coffee purifier.

[0063] Please see Figure 1 In some embodiments, the water tank 3 includes a concentrate tank 31 and a raw water tank 32. The raw water tank 32 and the concentrate tank 31 are spaced apart, that is, the raw water tank 32 and the concentrate tank 31 are separated in one water tank 3 by a partition. The raw water tank 32 is used to hold untreated raw water, and the concentrate tank 31 is used to hold water containing high concentrations of impurities generated during the filtration process, so that the pure water is not affected by this part of the water, thus ensuring the quality of the pure water.

[0064] The outlet of the raw water tank 32 is connected to the inlet of the filter assembly 8 to filter the water in the raw water tank 32, thereby removing impurities from the water to obtain pure water. Furthermore, in this embodiment, the water tank 3 is divided into a raw water tank 32 and a concentrated water tank 31 by a partition. This prevents concentrated water in the concentrated water tank 31 from flowing into the raw water tank 32, ensuring the normal operation of the filter assembly 8 and extending its service life. It should be noted that this embodiment does not specifically limit the volume of the water tank 3; it can be set according to the actual application scenario.

[0065] In some embodiments, the raw water tank 32 further includes a low water level detection element and a high water level detection element, wherein the low water level detection element and the high water level detection element can be a water level sensing needle or a mechanical float.

[0066] A low-water-level detector is installed on the raw water tank 32 to detect the lowest water level in the tank. A high-water-level detector is installed on the raw water tank 32 to detect the highest water level. That is, the low-water-level and high-water-level detectors work together on the raw water tank 32 to detect the water level. For example, the low-water-level detector is installed near the bottom of the raw water tank 32. When the water level drops to this position, a water replenishment signal is triggered to remind the coffee purifier system or the user to add water. For instance, during continuous coffee brewing, when the water level in the raw water tank 32 reaches a low level, the low-water-level detector sends a signal, and the control module prompts the user to add water or automatically adds water to the raw water tank 32 via the water circuit. The high-water-level detector is installed near the top of the raw water tank 32. When the water level reaches this position, the control module sends a signal to remind the user to stop adding water to the raw water tank 32. It is evident that the aforementioned dual water level detection mechanism not only ensures the safe operation of the coffee purifier but also prevents water waste by detecting water levels, thereby improving the reliability and user experience of the coffee purifier.

[0067] Please continue reading. Figure 1 In some embodiments, the filter assembly 8 further includes a first-stage filter 81 and a second-stage filter 82.

[0068] The first-stage filter element 81 is connected to the outlet of the raw water tank 32. The first-stage filter element 81 is composed of PP cotton and activated carbon. Its main function is to efficiently remove suspended particles larger than 5μm, residual chlorine, and impurities such as discoloration and odor from the water through a dual mechanism of physical interception and chemical adsorption. The first-stage filter element 81 includes a pre-filter and a post-filter. When the raw water passes through the pre-filter, suspended particles, colloids, and other impurities in the raw water are aggregated into larger flocs, facilitating subsequent filtration and removal. The pre-filter can also effectively intercept large particles such as sediment and rust in the raw water, reducing the burden on the subsequent second-stage filter element 82 and extending its service life.

[0069] The second-stage filter element 82 is connected to both the pre-filter and the post-filter. Understandably, the RO filtration of the second-stage filter element 82 is the core of the entire filtration process. The RO reverse osmosis membrane has extremely small pores, allowing only water molecules to pass through under pressure, while trapping most impurities such as bacteria, viruses, and heavy metal ions, resulting in relatively pure water. This pure water flows to the post-filter, where it undergoes further filtration to obtain extremely pure water. The post-filter has a pure water outlet 83, ensuring extremely high purity water. This meets users' requirements for healthy, high-quality drinking water and the water quality requirements for coffee extraction, further enhancing the coffee's flavor. It also reduces the risk of scale buildup in the downstream water supply lines (after the pure water outlet 83), extending the lifespan of the coffee purifier.

[0070] The second-stage filter element 82 is also connected to the concentrate tank 31. In this way, boiling water containing impurities that the second-stage filter element 82 fails to filter can flow into the concentrate tank 31 to avoid affecting the subsequent filtration of the post-filter section.

[0071] Please see Figure 2 In some embodiments, the coffee purification system also includes a steam water circuit. The steam water circuit includes a steam pipe 92 and a steam valve 93 disposed on the steam pipe 92, wherein the steam pipe 92 is connected to the extraction pipe 21. It is understood that when the coffee purification system activates its steam function, pure water from the pure water outlet 83 flows through the hot extraction inlet pipe 113 and into the heating element 51. At this time, the heating element 51 operates, and the hot water in the heating element 51 flows into the steam pipe 92 through the extraction pipe 21. The steam valve 93 opens, allowing steam to be ejected from the steam outlet 94.

[0072] Please continue reading. Figure 2 In some embodiments, the coffee purification system also includes a steam drain pipe 9 and a steam drain valve 91.

[0073] The steam drain pipe 9 is connected to the extraction pipe 21 and the concentrate tank 31, meaning one end of the steam drain pipe 9 is connected to the extraction pipe 21 and the other end is connected to the concentrate tank 31. A steam drain valve 91 is installed on the steam drain pipe 9 to discharge steam from the steam drain pipe 9 to the concentrate tank 31. It is understood that before the coffee purification system activates the steam function, residual water or condensate from steam condensation may remain in the extraction pipe 21. Therefore, controlling the steam drain valve 91 to open allows the residual water and condensate to be discharged to the concentrate tank 31, preventing interference with the normal operation of the steam function.

[0074] Furthermore, when a user requests hot coffee, since the coffee purification system integrates a cold brew function, to ensure the temperature of the hot brew, the piping through which the hot brew flows can be preheated before the hot brew function is activated, and the preheated water is drained to the concentrate tank 31 through the steam drain valve 91. Similarly, when a user requests cold coffee, since the coffee purification system integrates a hot brew function, to ensure the temperature of the cold brew, the piping through which the cold brew flows can be precooled before the cold brew function is activated, and the preheated water is drained to the concentrate tank 31 through the steam drain valve 91.

[0075] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0076] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A coffee purification system, characterized in that, The coffee purification system is applied to coffee purifiers and includes: The filter assembly has a pure water outlet; The water inlet circuit includes a hot water inlet pipe and a hot extraction water inlet pipe. Both the hot water inlet pipe and the hot extraction water inlet pipe are connected to the pure water outlet. A water supply pump is installed on the hot water inlet pipe, and an extraction water pump is installed on the hot extraction water inlet pipe. The pressurized instant heating module is connected to the water supply pump through the hot water inlet pipe; The heating element is connected to the extraction water pump via the hot extraction water inlet pipe; The water outlet is connected to the pressurized instant heating module; and, The extraction water path is connected to the heating element.

2. The coffee purification system as described in claim 1, characterized in that, The heating element includes one of a cast aluminum heater, a quartz heater, and an electromagnetic induction heater.

3. The coffee purification system as described in claim 1, characterized in that, Also includes: A negative pressure valve is installed on the common section of the hot water inlet pipe and the hot extraction inlet pipe, and is connected to the pure water outlet. as well as, A flow meter is installed on the common section of the hot water inlet pipe and the hot extraction inlet pipe, and along the water flow direction, the flow meter is located between the negative pressure valve, the water supply pump and the extraction pump.

4. The coffee purification system as described in claim 1, characterized in that, Also includes: The first negative pressure valve is installed on the hot water inlet pipe; A first flow meter is installed on the hot water inlet pipe and along the water flow direction of the hot water inlet pipe. The first flow meter is located between the first negative pressure valve and the water supply pump. A second negative pressure valve is installed on the hot extraction water inlet pipe; and, The second flow meter is installed on the hot extraction water inlet pipe and along the water flow direction of the hot extraction water inlet pipe. The second flow meter is located between the second negative pressure valve and the extraction water pump.

5. The coffee purification system as described in claim 1, characterized in that, The water inlet channel also includes: A buffer noise reduction component is installed on the hot extraction water inlet pipe and located between the extraction water pump and the heating component.

6. The coffee purification system as described in any one of claims 1-5, characterized in that, The water inlet channel also includes: The cold water inlet pipe is connected to the pure water outlet and to the extraction water circuit; A refrigeration module is installed on the cold water inlet pipe; A cold water pump is installed on the cold water inlet pipe; and, A one-way valve is installed on the cold water inlet pipe; The refrigeration module, the cold water pump, and the one-way valve are arranged sequentially along the water flow direction of the cold water inlet pipe.

7. The coffee purification system as described in claim 6, characterized in that, The one-way valve includes either a check valve or a solenoid valve.

8. The coffee purification system as described in claim 6, characterized in that, Also includes: A water inlet solenoid valve is installed on the cold water inlet pipe and located between the pure water outlet and the refrigeration module; And / or, The third flow meter is installed on the cold water inlet pipe and is located between the refrigeration module and the cold water pump.

9. The coffee purification system as described in claim 8, characterized in that, Also includes: A cold water outlet pipe is connected to the cold water pump, and the cold water pump works in conjunction with the cold water outlet pipe to output cold water.

10. The coffee purification system as described in claim 6, characterized in that, Also includes: A room temperature water outlet pipe is connected to the pure water outlet. A solenoid valve for ambient temperature water is installed on the ambient temperature water outlet pipe; and, The fourth flow meter is installed on the ambient temperature water outlet pipe and is located downstream of the ambient temperature water solenoid valve.

11. The coffee purification system as described in claim 6, characterized in that, The water outlet path includes a water outlet pipe connected to the pressurized instant heating module, and a water outlet valve installed on the water outlet pipe; The extraction water path includes an extraction tube connected to the heating element and the one-way valve, and a coffee valve and an extraction device arranged sequentially on the extraction tube along the water flow direction. In this configuration, the water outlet valve and the coffee valve are selectively connected. The water supply pump, through the pressurized instant heating module, cooperates with the connected water outlet valve to dispense water. The extraction water pump, through the heating element, cooperates with the connected coffee valve and the extraction device to prepare hot coffee. Alternatively, the cold water pump, through the one-way valve, cooperates with the connected coffee valve and the extraction device to prepare cold coffee.

12. The coffee purification system as described in claim 11, characterized in that, It also includes a water tank, the water tank comprising: Concentrate tank; and, The raw water tank is spaced apart from the concentrated water tank, and the outlet of the raw water tank is connected to the inlet of the filter assembly.

13. The coffee purification system as described in claim 12, characterized in that, The filtering component also includes: The first-stage filter element is connected to the outlet of the raw water tank and includes a pre-filter and a post-filter, wherein the post-filter has the pure water outlet; and, The second-stage filter element is connected to the pre-filter and the post-filter, and is also connected to the concentrate tank to direct wastewater to the concentrate tank.

14. The coffee purification system as described in claim 12, characterized in that, Also includes: A steam drain pipe is connected to the extraction pipe and the concentrate tank; and, A steam drain valve is installed on the steam drain pipe to discharge steam from the steam drain pipe to the concentrate tank.

15. The coffee purification system as described in claim 14, characterized in that, Also includes: The steam water circuit includes a steam pipe and a steam valve installed on the steam pipe, the steam pipe (92) being connected to the extraction pipe.

16. A coffee purifier, characterized in that, include: The outer casing has a mounting cavity; as well as, The coffee purification system as described in any one of claims 1-15 is installed within the mounting cavity.

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