Drink brewing device

Abstract

The present invention provides a beverage brewing device, which relates to the technical field of water heaters. It includes a boiler, a heating element is provided therein, a first water inlet pipe for connecting to a water tank is provided thereon, and a first water outlet pipe and an air outlet pipe are also connected thereon; a phase change heating pipe, which is at least partially embedded and arranged inside the boiler, a second water inlet pipe extending into the phase change heating pipe is provided at its lower end, and a second water outlet pipe is provided at its upper end; the second water outlet pipe is connected to the brewing interface through a brewing valve; the second water outlet pipe is connected to the water tank; the steam head is connected to the air outlet pipe through the steam valve; a phase change heating pipe is provided with a phase change pipe, and the phase change pipe is filled with a phase change material. By combining the boiler with the heating pipe containing the phase change material, the phase change material can absorb or release heat according to the water temperature, accurately adjust the water temperature, avoid overheating, and buffer temperature fluctuations, so that the water temperature remains stable under various working conditions, meeting the fine temperature requirements of coffee brewing.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a beverage brewing device. Background Art

[0002] A beverage brewing device is a water-boiling device for beverages, such as making tea, coffee, etc. It can be used as a hot water device for home or commercial life or office.

[0003] Most of the current beverage brewing devices are of the direct heating type, that is, water is directly heated by an internal heater and then filled into a brewing valve or a brewing container for brewing, or some improved structures are used to use insulation outside the heating structure to keep the boiled water warm. However, the current beverage brewing devices of this type still have the following main problems: on the one hand, directly heating the brewing water cannot well control the heating temperature, and the water temperature is easily overheated; on the other hand, the existing beverage brewing devices may use insulation technology, but its insulation effect is not ideal, and when brewing is needed, it may need to be heated again for a long time; therefore, the present invention proposes a beverage brewing device to at least partially solve the problems that may exist in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a beverage brewing device, which can propose solutions to the deficiencies of the prior art, solve the problems of inaccurate temperature control and poor heat preservation effect of traditional beverage brewing devices, and improve the temperature control accuracy and heat preservation effect of the beverage brewing device.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A beverage brewing device, comprising: A boiler, wherein a heating element is provided inside the boiler, a first water inlet pipe for connecting to a water storage tank is provided on the boiler, and an air outlet pipe is also connected to the boiler; A phase-change heating tube, a small portion of which is embedded in the boiler, a second water inlet pipe extending into the phase-change heating tube is provided at the lower end thereof, and a second water outlet pipe is provided at the upper end thereof; The second water outlet pipe is connected to the brewing interface through a brewing valve; The second water outlet pipe is connected to the water storage tank; The steam head is connected to the gas outlet pipe through a steam valve; A phase change tube is arranged inside the phase change heating tube, and the phase change tube is filled with phase change material.

[0006] Optionally, a water pump is also included; The input pipe of the water pump is connected to the water storage tank, and the output end of the water pump is connected to one end of the three-way pipe; One of the other two ends of the three-way pipe is connected to the first water inlet pipe through a solenoid valve, and the other two are connected to the second water inlet pipe through a one-way valve.

[0007] Optionally, the boiler is further provided with a first water outlet pipe, which is connected to the water outlet through a hot water valve.

[0008] Optionally, a flow meter is also provided on the second water inlet pipe.

[0009] Optionally, a reflux pipe connected to the brewing valve is further provided at the bottom of the phase change heating tube.

[0010] Optionally, a pressure limiting valve is also provided at the upper end of the boiler.

[0011] Optionally, a recovery groove is further included, which is located at the bottom of the beverage brewing device and corresponds to the brewing interface.

[0012] Optionally, a recovery pipe is further connected to the bottom of the phase change heating tube, and the recovery pipe is connected to the recovery tank through a pressure valve.

[0013] Optionally, the water outlet is located at the upper end of the platform, and the recovery tank is arranged on the outer side of the platform.

[0014] Optionally, a water level sensor is also provided in the boiler.

[0015] The present invention has at least the following advantages or beneficial effects: Through the boiler, a heating element is provided inside, a first water inlet pipe for connecting to the water tank is provided on it, and a first water outlet pipe and an air outlet pipe are also connected to it; a phase change heating pipe is at least partially embedded in the boiler, a second water inlet pipe extending into the phase change heating pipe is provided at its lower end, and a second water outlet pipe is provided at its upper end; the second water outlet pipe is connected to the brewing interface through a brewing valve; the second water outlet pipe is connected to the water tank; the steam head is connected to the air outlet pipe through a steam valve; a phase change tube is provided in the phase change heating tube, and the phase change tube is filled with phase change material. Through the combination of the boiler and the heating tube containing the phase change material, the phase change material can absorb or release heat according to the water temperature, accurately adjust the water temperature to avoid overheating, and can also buffer temperature fluctuations, so that the water temperature remains stable under various working conditions, meeting the fine temperature requirements of coffee brewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of a beverage brewing device provided by an embodiment of the present invention; Figure 2 A schematic cross-sectional structure diagram of a phase change heating tube of a beverage brewing device provided in one embodiment of the present invention; Figure 3 A schematic diagram of the cross-sectional structure of a phase change heating tube of a beverage brewing device provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Please refer to Figures 1 to 3 , showing that this embodiment provides a beverage brewing device, which includes: a boiler 102, in which a heating element 103 is provided, on which a first water inlet pipe 207 for connecting to a water tank 101 is provided, and a first water outlet pipe 401 and an air outlet pipe 301 are also connected to the boiler 102; a phase change heating tube 104, which is at least partially embedded in the boiler 102, and a second water inlet pipe 206 extending into the phase change heating tube 104 is provided at its lower end, and a second water outlet pipe 304 is provided at its upper end; the second water outlet pipe 304 is connected to a brewing interface 306 through a brewing valve 305; the second water outlet pipe 304 is connected to the water tank 101; a steam head 303 is connected to the air outlet pipe 301 through a steam valve 302, and is used to connect to a steam wand through the steam head 303, and can make milk foam by injecting steam into milk, for example, it is essential for making espresso drinks (such as cappuccino, latte, etc.) because they usually need to add milk foam. By injecting a proper amount of steam into the milk through the steam pipe, the milk temperature can be adjusted. Different coffee drinks require different milk temperatures. For example, hot milk requires a higher temperature. In addition, by injecting steam into the coffee, the taste and richness of the coffee can be increased. The heat and bubbles of the steam will produce a gas mixture in the coffee, forming a richer texture and taste. Users can adjust the taste and taste of coffee according to personal preferences or merchants can adjust the taste and taste of coffee according to customer needs. The phase change heating tube 104 is provided with a phase change tube 105, and the phase change tube 105 is filled with a phase change material 151. Through the above phase change material, it can absorb heat and when the water temperature in the phase change heating tube 104 decreases, the phase change material can release heat to heat the water.

[0020] The above scheme can control the heating temperature more accurately, which solves the problem that it is difficult to control the temperature of the brewing water directly in the existing direct heating beverage brewing device, which easily leads to overheating of the water temperature. Specifically, the water is heated by setting a combined structure of a boiler 102 and a phase change heating tube 104. The boiler 102 has a heating element 103, which can preliminarily heat the water in the boiler. The phase change heating tube 104 is filled with a phase change material 151, which has the characteristic of undergoing phase change at a specific temperature. For example, when the hot water in the boiler 102 enters the phase change heating tube 104 through the second water inlet pipe 206, the phase change material 151 can absorb or release heat to adjust the water temperature. If the water temperature is too high, the phase change material can absorb excess heat to avoid overheating of the water temperature; if the water temperature is low, the phase change material can release heat to increase the water temperature, thereby achieving precise control of the temperature of the brewing water. In addition, unlike the method of directly heating the brewing water, the existence of the phase change material 151 is like a temperature buffer. It can effectively prevent the water temperature from fluctuating greatly when the beverage brewing device is frequently used or the external environment temperature changes. For example, when making multiple cups of coffee continuously, even if the water temperature in the boiler 102 changes slightly due to factors such as heating speed, after passing through the phase change heating tube 104, the water temperature can be kept relatively stable under the regulation of the phase change material 151, which is more suitable for coffee brewing requirements.

[0021] It should be noted that the above-mentioned phase change material can be a hydrated salt, such as sodium sulfate decahydrate, which has a melting point of about 32.4°C, or calcium chloride hexahydrate, which has a melting point of about 29.8°C, which can also effectively absorb or release heat during the phase change process. It can also be fatty acids and their esters, specifically stearic acid, which has a melting point of about 69-71°C. Fatty acids and their esters have good thermal and chemical stability. In a beverage brewing device, if a higher temperature water temperature adjustment is required, this type of phase change material can play a role. They can effectively absorb or release heat during the phase change process, and have good compatibility with the metal and plastic parts inside the beverage brewing device, and will not cause chemical reactions to damage the equipment.

[0022] As a preferred embodiment, it further includes a water pump 202; the input pipe 201 of the water pump 202 is connected to the water storage tank 101, and the output end of the water pump 202 is connected to one end of a three-way pipe; the other two ends of the three-way pipe, one of which is connected to the first water inlet pipe 207 through a solenoid valve 205, and the other of which is connected to the second water inlet pipe 206 through a one-way valve 203. Through the water pump 202 and the three-way pipe, the water in the water storage tank 101 can be replenished into the phase change heating tube 104, or replenished into the boiler 102 and the phase change heating tube 104 at the same time.

[0023] Furthermore, the boiler 102 is further provided with a first water outlet pipe 401, which is connected to a water outlet 403 via a hot water valve 402. The water outlet 403 connected to the first water outlet pipe 401 can directly release hot water from the boiler 102, and can be used as a hot water device in addition to normal coffee brewing.

[0024] Furthermore, a flow meter 204 is provided on the second water inlet pipe 206. The flow meter 204 provided on the second water inlet pipe can monitor the amount of water flowing into the phase change heating tube 104. A reflux pipe 307 connected to the brewing valve 305 is provided at the bottom of the phase change heating tube 104; a recovery pipe 404 is also connected to the bottom of the phase change heating tube 104, and the recovery pipe 404 is connected to the recovery tank 407 through a pressure valve 405.

[0025] Since the phase change heating tube 104 is also connected to a reflux pipe 307 and a recovery pipe 404, a return water path can be formed from the phase change heating tube 104, to the second water outlet pipe 304, to the brewing valve 305, to the reflux pipe 307, and then back to the phase change heating tube 104, so that the water released during the brewing process (unused water stored in the pipeline) flows back into the phase change heating tube 104, and then to the recovery tank 407 through the recovery pipe 404 and the pressure valve 405, so that the excess water in the phase change heating tube 104 can be discharged, which can prevent the water pump 202 from filling too much water into the phase change heating tube 104. When the pressure is large and exceeds the pressure threshold of the pressure valve 405, the excess water is automatically released into the recovery tank 407 through the recovery pipe 404.

[0026] As a preferred embodiment, a pressure limiting valve 107 is further provided at the upper end of the boiler 102, and a recovery tank 407 is located at the bottom of the beverage brewing device and corresponds to the brewing interface 306. The pressure limiting valve 107 is used to keep the boiler 102 within a safe pressure range. When the pressure exceeds the pressure limit value, the pressure can be released through the pressure limiting valve 107. The recovery tank 407 located at the lower end of the brewing interface 306 can prevent hot water leaking from the brewing interface 306 from falling into the recovery tank 407, thereby preventing hot water leaking during brewing from scalding people and ensuring the safety of brewing.

[0027] As a preferred embodiment, the bottom of the phase change heating tube 104 is also connected to a recovery pipe 404, and the recovery pipe 404 is connected to the recovery tank 407 through a pressure valve 405. The water outlet 403 is located at the upper end of the platform 406, and the recovery tank 407 is arranged outside the platform 406. It can be used to place containers such as water cups for receiving water, and the platform 406 is located inside the recovery tank 407, so that when receiving water, the overflowed water can flow into the recovery tank 407.

[0028] Furthermore, a water level sensor 106 is also provided in the boiler 102. The water level sensor can sense the water level in the boiler to prevent the boiler from "dry burning" due to insufficient water or from boiling water normally due to excessive water, thereby ensuring that the amount of water in the boiler 102 is maintained within normal specifications.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0030] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0031] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0032] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0033] The beverage brewing device provided by the present invention is introduced in detail above. The principle and implementation mode of the present invention are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A beverage brewing device, characterized in that: include: A boiler (102) having a heating element (103) therein, a first water inlet pipe (207) for connecting to a water storage tank (101) and an air outlet pipe (301) connected thereto; A phase change heating tube (104), at least partly embedded in the boiler (102), with a second water inlet pipe (206) extending into the phase change heating tube (104) provided at its lower end, and a second water outlet pipe (304) provided at its upper end; The second water outlet pipe (304) is connected to the brewing interface (306) via a brewing valve (305); The second water outlet pipe (304) is connected to the water storage tank (101); The steam head (303) is connected to the gas outlet pipe (301) via a steam valve (302); A phase change tube (105) is arranged inside the phase change heating tube (104), and the phase change tube (105) is filled with a phase change material (151).

2. The beverage brewing device according to claim 1, characterized in that: Also includes a water pump (202); The input pipe (201) of the water pump (202) is connected to the water storage tank (101), and the output end of the water pump (202) is connected to one end of a three-way pipe; One of the other two ends of the three-way pipe is connected to the first water inlet pipe (207) via a solenoid valve (205), and the other two are connected to the second water inlet pipe (206) via a one-way valve (203).

3. The beverage brewing device according to claim 1, characterized in that: The boiler (102) is also provided with a first water outlet pipe (401), and the first water outlet pipe (401) is connected to the water outlet (403) via a hot water valve (402).

4. The beverage brewing device according to claim 2, characterized in that: The second water inlet pipe (206) is also provided with a flow meter (204).

5. The beverage brewing device according to claim 1, characterized in that: A reflux pipe (307) connected to the brewing valve (305) is also provided at the bottom of the phase change heating tube (104).

6. The beverage brewing device according to claim 1, characterized in that: A pressure limiting valve (107) is also provided at the upper end of the boiler (102).

7. The beverage brewing device according to claim 1, characterized in that: It also includes a recovery groove (407), which is located at the bottom of the beverage brewing device and corresponds to the brewing interface (306).

8. The beverage brewing device according to claim 7, characterized in that: The bottom of the phase change heating tube (104) is also connected to a recovery tube (404), and the recovery tube (404) is connected to the recovery tank (407) via a pressure valve (405).

9. The beverage brewing device according to claim 3, characterized in that: The water outlet (403) is located at the upper end of the platform (406), and the recovery tank (407) is arranged outside the platform (406).

10. The beverage brewing device according to claim 1, characterized in that: A water level sensor (106) is also provided in the boiler (102).

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