A cold-heat separation saturated boiler and coffee machine

Abstract

This utility model discloses a cold and hot separation saturated boiler and a coffee machine, including a furnace body installed inside the coffee machine, and a water injection device connected to the outside of the furnace body. The furnace body is provided with a water inlet and a water outlet, which are connected to the water injection device. A funnel is provided at the lower end of the water outlet. The furnace body includes a boiler chamber and a brewing chamber that are interconnected. The water outlet is located at the lower end of the brewing chamber, passes through the brewing chamber from the outside of the furnace body, and extends to the water outlet to form a water outlet channel. One end of the water outlet channel is connected to the water outlet, and the other end of the water outlet channel is provided with a multi-port connecting valve. The output end of the multi-port connecting valve is connected to the water outlet channel, and the input end of the multi-port connecting valve is connected to the water injection device and the boiler chamber respectively. The water injection device injects cold water into the furnace body through the water inlet. After being heated into hot water by the boiler, it flows out through the water outlet channel to form a hot water path. The water injection device directly injects cold water through the multi-port connecting valve, which flows out through the water injection channel to form a cold water path.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machine technology, specifically relating to a cold and hot separation saturated boiler and a coffee machine. Background Technology

[0002] Traditional coffee machines use a single boiler design, where hot water is transported to the brew head through metal pipes. Due to the high thermal conductivity of metal, the temperature difference between the inside and outside of the pipes causes the hot water temperature to gradually decrease during transport. For example, hot water set to 93℃ in the boiler may drop to 88℃ by the time it reaches the brew head after being transported through copper pipes. The slower the flow rate (e.g., when brewing multiple cups consecutively), the greater the temperature deviation. This temperature fluctuation directly affects the coffee extraction rate. Extraction includes hot and cold brew. Hot brew uses high-temperature hot water (82-95℃) to quickly dissolve soluble substances in coffee grounds, using high temperature to accelerate molecular movement and shorten extraction time. Its core lies in achieving rapid release of flavor compounds through temperature control, while further enhancing extraction efficiency through pressure (such as the 9 atmospheres required for espresso). Cold brew uses low-temperature cold water (5-25℃) to soak coffee grounds for a long time (12-24 hours), slowly extracting flavor compounds through permeation. Its core lies in using low temperature to inhibit the precipitation of acidic substances while preserving small molecule compounds such as floral and fruity aromas.

[0003] Existing coffee machines generally experience temperature loss during the hot water delivery process, which affects the coffee extraction effect. Furthermore, most coffee machines only include hot brewing functions and do not include cold brewing functions. Summary of the Invention

[0004] To address the problems in related technologies, this utility model proposes a cold and hot separation saturation boiler and coffee machine. It utilizes an interconnected boiler chamber and brewing chamber, and sets up a water outlet channel passing through the brewing chamber to achieve the same temperature between the boiler body and the water outlet channel and outlet, avoiding temperature differences and achieving saturation. It sets up cold and hot water circuits to realize the cold brewing and hot brewing functions of coffee.

[0005] This utility model is implemented as follows:

[0006] A cold and heat separation saturated boiler includes a furnace body, which is installed inside a coffee machine. A water injection device is connected to the outside of the furnace body. The furnace body is provided with a water inlet and a water outlet. The water inlet is connected to the water injection device. A funnel is provided at the lower end of the water outlet.

[0007] The furnace body includes a boiler chamber and a brewing chamber that are interconnected. The water outlet is located at the lower end of the brewing chamber, passes through the brewing chamber from the outside of the furnace body, and extends towards the water outlet to form a water outlet channel. One end of the water outlet channel is connected to the water outlet, and the other end of the water outlet channel is provided with a multi-port connecting valve. The output end of the multi-port connecting valve is connected to the water outlet channel, and the input end of the multi-port connecting valve is connected to the water injection device and the boiler chamber respectively.

[0008] The water injection device injects cold water into the boiler body through the inlet. After being heated in the boiler chamber, the water becomes hot water and flows to one input end of the multi-port connecting valve. After passing through the multi-port connecting valve, the hot water flows out of the outlet through the outlet channel, forming a hot water path. The water injection device injects cold water into the other input end of the multi-port connecting valve. After passing through the multi-port connecting valve, the cold water flows out of the outlet through the outlet channel, forming a cold water path.

[0009] Preferably, the lower end of the boiler chamber and the upper end of the brewing chamber are sealed to each other to form the furnace body; the longitudinal central axis of the boiler chamber and the longitudinal central axis of the brewing chamber are not on the same straight line.

[0010] Specifically, the boiler chamber and the brewing chamber are offset from each other longitudinally, but they are internally connected to each other, ensuring that the heated water in the brewing chamber and the boiler chamber has the same temperature. The brewing chamber corresponds to the brewing head of the coffee machine.

[0011] Preferably, the brewing chamber is located at the lower end of the boiler chamber, the part connecting the boiler chamber and the brewing chamber is a connecting part, and the main body of the boiler chamber and the main body of the brewing chamber are located on both sides of the connecting part.

[0012] Specifically, the boiler chamber and brewing chamber are designed with an eccentric structure, and the empty area at the top of the brewing chamber is convenient for setting up the front control area of ​​the coffee machine, making the overall structure of the coffee machine more reasonable.

[0013] Preferably, the brewing chamber is provided with a longitudinal water outlet channel that extends upward to the outside of the furnace body, and a multi-port connecting valve is provided. The multi-port connecting valve is located on one side of the boiler chamber and at a corresponding position above the brewing chamber.

[0014] Specifically, the water outlet channel runs longitudinally through the brewing chamber, and the water outlet channel and the brewing chamber are integrally formed, which can ensure that the water temperature is consistent with the water temperature inside the furnace, so as to achieve temperature saturation without temperature difference and improve the coffee extraction effect.

[0015] Preferably, the multi-port valve has at least two input terminals, one of which is a cold water input terminal and the other is a hot water input terminal. The cold water input terminal is connected to a water injection device, and the hot water input terminal is connected to the boiler chamber. The multi-port valve also has a pressure relief outlet.

[0016] Specifically, the multi-port connecting valve can be a four-way connecting valve with two input terminals and two output terminals. The two input terminals correspond to hot and cold water respectively, one output terminal is connected to the water outlet channel, and the other output terminal is connected to the pressure relief outlet.

[0017] Preferably, the water inlet is located on the side wall of the boiler chamber, the boiler chamber is equipped with a heating pipe, the boiler chamber is equipped with a hot water outlet at the top, and the hot water outlet is connected to the input end of a multi-port connecting valve.

[0018] Specifically, the inlet is used to inject water into the furnace body, and the water inside the furnace body can be heated through the heating pipe; the hot water inside the furnace body is transported to the hot water input end of the multi-port connecting valve through the hot water outlet; cold water enters through the inlet, and after being heated in the furnace body through the heating pipe, the cold water flows from the hot water outlet to the hot water input end of the multi-port connecting valve.

[0019] Preferably, the water outlet is provided with a water distribution plate and a water outlet plate. The side wall of the water outlet channel near the lower end is provided with several water outlets. The bottom of the brewing chamber is provided with a water distribution plate, and the lower end of the water distribution plate is provided with a water outlet plate. The periphery of the water distribution plate has several grooves that are recessed towards its center. The surface of the water outlet plate is formed into a filter screen. After the water flows out of the water outlet through the water outlet channel, it falls onto the water distribution plate, and then falls onto the water outlet plate through the grooves on the periphery of the water distribution plate. It then falls evenly into the funnel through the filter screen on the surface of the water outlet plate.

[0020] Specifically, the water flow is separated by several outlets on the side wall of the water outlet channel. After falling onto the water distribution plate, the water flow is further separated to the surrounding area by the grooves of the water distribution plate. Finally, the filter screen of the water outlet plate achieves uniform water output, improving the coffee extraction effect.

[0021] Preferably, the bottom of the brewing chamber is also provided with a drain outlet, and the lower end of the drain outlet is a water distribution plate.

[0022] Specifically, the drain outlet is mainly used to remove water from the furnace body.

[0023] Preferably, the water injection device includes a water tank, a flow meter, an electromagnetic pump, and a electromagnetic valve connected in sequence; the output end of the electromagnetic valve is connected to the water inlet and the input end of the multi-port connecting valve, respectively.

[0024] Specifically, a pressure regulating valve is also provided between the flow meter and the electromagnetic pump, which can be used to adjust the water pressure.

[0025] The electromagnetic pump draws water from the tank through a flow meter, then through a pressure regulating valve into the electromagnetic valve, which then injects water into the furnace body or the input end of a multi-port connecting valve.

[0026] The solenoid valve is equipped with an energizing switch to control its output. When the switch is turned on, water flows from the output of the solenoid valve to the inlet and into the furnace body, and hot water is generated at the outlet. When the switch is turned off, water flows from the output of the solenoid valve to the input of the multi-port connecting valve, and cold water is generated at the outlet.

[0027] A coffee machine that utilizes a cold and heat separation saturated boiler as described in any of the above.

[0028] Compared with the prior art, the present invention achieves the following beneficial effects:

[0029] This invention provides a hot and cold separation saturation boiler and coffee machine, including a furnace body installed inside the coffee machine. The furnace body includes a boiler chamber and a brewing chamber that are interconnected. The lower end of the brewing chamber is provided with a water outlet, and the brewing chamber has a water outlet channel passing through its interior. By connecting the boiler chamber and the brewing chamber, the water temperature in the two chambers is made the same. Furthermore, the water temperature in the water outlet channel and the water outlet in the brewing chamber is also made the same as the water temperature in the furnace body. During coffee brewing and extraction, temperature differences in the water are avoided, thus achieving saturation and improving the coffee brewing and extraction effect and taste. In addition, a multi-port connecting valve is used to set up hot water circuits and cold water circuits that are independent of each other, realizing the functions of hot and cold coffee extraction. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a coffee machine according to an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the water injection device connection of a cold and heat separation saturated boiler according to an embodiment of the present utility model;

[0032] Figure 3 This is a schematic diagram of the structure of a cold and heat separation saturated boiler according to an embodiment of the present utility model;

[0033] Figure 4 This is a schematic diagram of the furnace body structure of a cold and heat separation saturated boiler according to an embodiment of the present utility model;

[0034] Figure 5 This is an exploded structural diagram of a cold and heat separation saturated boiler according to an embodiment of the present utility model;

[0035] Figure 6 This is a cross-sectional structural diagram of a cold and heat separation saturated boiler according to an embodiment of the present utility model;

[0036] Figure 7 This is a schematic diagram of the brewing chamber structure of a cold and heat separation saturated boiler according to an embodiment of the present utility model;

[0037] Figure 8 This is a schematic diagram of the water distribution plate structure of a cold and heat separation saturated boiler according to an embodiment of the present utility model.

[0038] Figure label:

[0039] 1. Coffee machine;

[0040] 2. Furnace body; 21. Boiler cavity; 211. Water inlet; 212. Hot water outlet; 22. Brewing chamber; 221. Water outlet channel; 2211. Water outlet; 222. Drain outlet; 23. Connecting part; 24. Water distribution plate; 241. Groove; 25. Water outlet plate;

[0041] 3. Multi-port connecting valve; 31. Hot water inlet; 32. Cold water inlet; 33. Pressure relief outlet;

[0042] 4. Water injection device; 41. Water tank; 42. Flow meter; 43. Electromagnetic pump; 44. Electromagnetic valve;

[0043] 5. Funnel. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] Example

[0046] like Figures 1 to 8 A cold and heat separation saturated boiler includes a boiler body 2, which is installed inside a coffee machine 1. A water injection device 4 is connected to the outside of the boiler body 2. The boiler body 2 is provided with a water inlet 211 and a water outlet 2211. The water inlet 211 is connected to the water injection device 4. A funnel 5 is provided at the lower end of the water outlet 2211.

[0047] The furnace body 2 includes a boiler chamber 21 and a brewing chamber 22 that are interconnected. The water outlet 2211 is located at the lower end of the brewing chamber 22, passes through the brewing chamber 22 from the outside of the furnace body 2, and extends to the water outlet 2211 to form a water outlet channel 221. One end of the water outlet channel 221 is connected to the water outlet 2211, and the other end of the water outlet channel 221 is provided with a multi-port connecting valve 3. The output end of the multi-port connecting valve 3 is connected to the water outlet channel 221, and the input end of the multi-port connecting valve 3 is connected to the water injection device 4 and the boiler chamber 21 respectively.

[0048] The water injection device 4 injects cold water into the furnace body 2 through the inlet 211. After being heated by the boiler chamber 21, the water becomes hot water and flows to one input end of the multi-port valve 3. After passing through the multi-port valve 3, the hot water flows out through the outlet channel 221 and out through the outlet 2211, forming a hot water path. The water injection device 4 injects cold water into the other input end of the multi-port valve 3. After passing through the multi-port valve 3, the cold water flows out through the outlet channel 221 and out through the outlet 2211, forming a cold water path.

[0049] Both the boiler chamber 21 and the brewing chamber 22 are hollow cavities, and the brewing chamber 22 can also be called the brewing head.

[0050] The water injection device 4 includes a water tank 41, a flow meter 42, an electromagnetic pump 43, and an electromagnetic valve 44 connected in sequence; the output end of the electromagnetic valve 44 is connected to the water inlet 211 and the input end of the multi-port connecting valve 3 respectively.

[0051] A pressure regulating valve is also provided between the flow meter 42 and the electromagnetic pump 43, which can be used to adjust the water pressure.

[0052] The electromagnetic pump 43 draws water from the water tank 41 into the electromagnetic pump 43 via the flow meter 42, and then into the electromagnetic valve 44 via the pressure regulating valve. The electromagnetic valve 44 then injects water into the furnace body 2 or the input end of the multi-port connecting valve 3.

[0053] The solenoid valve 44 is equipped with an energizing switch to control the output end. When the switch is turned on, water flows from the output end of the solenoid valve 44 to the inlet 211 and enters the furnace body 2, and hot water is generated at the outlet 2211. When the switch is turned off, water flows from the output end of the solenoid valve 44 to the input end of the multi-port connecting valve 3, and cold water is generated at the outlet 2211.

[0054] The lower end of the boiler chamber 21 and the upper end of the brewing chamber 22 are sealed together to form the furnace body 2; the longitudinal central axis of the boiler chamber 21 and the longitudinal central axis of the brewing chamber 22 are not on the same straight line.

[0055] The boiler chamber 21 and the brewing chamber 22 are offset from each other in the longitudinal direction, but they are internally connected to each other, which can ensure that the heated water in the brewing chamber 22 and the boiler chamber 21 has the same temperature. The brewing chamber 22 corresponds to the brewing head of the coffee machine 1.

[0056] The brewing chamber 22 is located at the lower end of the boiler chamber 21. The part connecting the boiler chamber 21 and the brewing chamber 22 is the connecting part 23. The main body of the boiler chamber 21 and the main body of the brewing chamber 22 are located on both sides of the connecting part 23.

[0057] The boiler chamber 21 and the brewing chamber 22 are designed with an eccentric structure. The empty area at the top of the brewing chamber 22 is convenient for setting up the front control area of ​​the coffee machine 1, making the overall structure layout of the coffee machine 1 more reasonable.

[0058] The brewing chamber 22 is provided with a longitudinal water outlet channel 221, which extends upward to the outside of the furnace body 2. A multi-port connecting valve 3 is provided, which is located on one side of the boiler chamber 21 and at the corresponding position above the brewing chamber 22.

[0059] The water outlet channel 221 extends longitudinally through the brewing chamber 22, and the water outlet channel 221 and the brewing chamber 22 are integrally formed, which can ensure that the water temperature is consistent with the water temperature inside the furnace body 2, so as to achieve a temperature difference-free and saturated boiler, thereby improving the coffee extraction effect.

[0060] The multi-port valve 3 has at least two input terminals, one of which is a cold water input terminal 32 and the other is a hot water input terminal 31. The cold water input terminal 32 is connected to the water injection device 4 and the hot water input terminal 31 is connected to the boiler chamber 21. The multi-port valve 3 is also provided with a pressure relief outlet 33.

[0061] The multi-port connecting valve 3 can be a four-way connecting valve with two input ends and two output ends. The two input ends correspond to hot and cold water respectively, and one output end is connected to the water outlet channel 221. The other output end is connected to the pressure relief outlet 33.

[0062] The water inlet 211 is located on the side wall of the boiler chamber 21. The boiler chamber 21 is equipped with a heating pipe. The boiler chamber 21 is equipped with a hot water outlet 212 above it. The hot water outlet 212 is connected to the input end of the multi-port valve 3.

[0063] Water inlet 211 is used to inject water into furnace body 2, and the water in furnace body 2 can be heated by heating pipe; hot water in furnace body 2 is transported to hot water input terminal 31 of multi-port connecting valve 3 through hot water outlet 212; cold water enters through water inlet 211, and after being heated in furnace body 2 by heating pipe, the cold water flows from hot water outlet 212 to hot water input terminal 31 of multi-port connecting valve 3.

[0064] The water outlet 2211 is provided with a water distribution plate 24 and a water outlet plate 25. The side wall of the water outlet channel 221 near the lower end is provided with a plurality of water outlets 2211. The bottom of the brewing chamber 22 is provided with a water distribution plate 24, and the lower end of the water distribution plate 24 is provided with a water outlet plate 25. The periphery of the water distribution plate 24 has a plurality of grooves 241 recessed towards its center. The surface of the water outlet plate 25 is formed into a filter screen. After the water flows out of the water outlet 2211 through the water outlet channel 221, it falls onto the water distribution plate 24, and then falls onto the water outlet plate 25 through the grooves 241 on the periphery of the water distribution plate 24. After passing through the filter screen on the surface of the water outlet plate 25, it falls evenly into the funnel 5.

[0065] The water flow is separated by several outlets 2211 on the side wall of the water outlet channel 221. After falling onto the water distribution plate 24, the water flow is further separated to the periphery by the grooves 241 of the water distribution plate 24. Finally, the water is evenly discharged by the filter screen of the water outlet plate 25, which improves the coffee extraction effect.

[0066] The bottom of the brewing chamber 22 is also provided with a drain outlet 222, and the lower end of the drain outlet 222 is a water distribution plate 24.

[0067] Drain 222 is mainly used to remove water from inside the furnace body 2.

[0068] A coffee machine 1 utilizes a cold and heat separation saturated boiler as described above.

[0069] This utility model provides a hot and cold separation saturated boiler and a coffee machine 1. The coffee machine 1 is equipped with a furnace body 2, which includes a boiler chamber 21 and a brewing chamber 22 (or brewing head) that are interconnected. The boiler chamber 21 and the brewing chamber 22 are longitudinally offset to form an eccentric structure. This irregular structure facilitates the integrated design of the overall internal structure of the coffee machine 1, making its overall structural layout more reasonable and making full use of the internal space. The water outlet channel 221 passes through the brewing chamber 22, so that the water temperature of the boiler chamber 21, the brewing chamber 22 and the water outlet channel 221 is consistent and constant, avoiding temperature loss or temperature difference. In this way, the saturated boiler is used for extraction to improve the taste of coffee. Hot water and cold water channels are set to realize the functions of hot extraction and cold extraction of coffee.

[0070] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A cold and heat separation saturated boiler, comprising a boiler body disposed inside a coffee machine, a water injection device connected externally to the boiler body, the boiler body having a water inlet and a water outlet respectively, the water inlet being connected to the water injection device, and a funnel at the lower end of the water outlet; characterized in that, The furnace body includes a boiler chamber and a brewing chamber that are interconnected. The water outlet is located at the lower end of the brewing chamber, passes through the brewing chamber from the outside of the furnace body, and extends towards the water outlet to form a water outlet channel. One end of the water outlet channel is connected to the water outlet, and the other end of the water outlet channel is provided with a multi-port connecting valve. The output end of the multi-port connecting valve is connected to the water outlet channel, and the input end of the multi-port connecting valve is connected to the water injection device and the boiler chamber respectively. The water injection device injects cold water into the furnace body through the inlet. After being heated in the boiler chamber, it becomes hot water and flows to one input end of the multi-port connecting valve. After the hot water flows through the multi-port connecting valve, it flows out of the outlet through the outlet channel, forming a hot water circuit. The water injection device injects cold water into the other input end of the multi-port connecting valve. After passing through the multi-port connecting valve, the cold water flows out of the outlet through the outlet channel, forming a cold water path.

2. The cold and heat separation saturated boiler according to claim 1, characterized in that, The lower end of the boiler chamber and the upper end of the brewing chamber are sealed to each other to form the furnace body; the longitudinal central axis of the boiler chamber and the longitudinal central axis of the brewing chamber are not on the same straight line.

3. A cold and heat separation saturated boiler according to claim 2, characterized in that, The brewing chamber is located at the lower end of the boiler chamber. The part connecting the boiler chamber and the brewing chamber is called the connecting part. The main body of the boiler chamber and the main body of the brewing chamber are located on both sides of the connecting part.

4. A cold and heat separation saturated boiler according to claim 3, characterized in that, The brewing chamber is provided with a longitudinal water outlet channel that extends upward to the outside of the furnace body. A multi-port connecting valve is provided, which is located on one side of the boiler chamber and at a corresponding position above the brewing chamber.

5. A cold and heat separation saturated boiler according to claim 4, characterized in that, The multi-port valve has at least two input terminals, one of which is a cold water input terminal and the other is a hot water input terminal. The cold water input terminal is connected to a water injection device, and the hot water input terminal is connected to a boiler chamber. The multi-port valve also has a pressure relief outlet.

6. A cold and heat separation saturated boiler according to claim 1, characterized in that, The water inlet is located on the side wall of the boiler chamber, the boiler chamber is equipped with a heating pipe, and the boiler chamber is equipped with a hot water outlet at the top, which is connected to the input end of a multi-port valve.

7. A cold-hot separated saturated boiler according to claim 1, characterized in that, The water outlet is equipped with a water distribution plate and a water outlet plate. The side wall of the water outlet channel near the lower end is provided with several water outlets. The bottom of the brewing chamber is provided with a water distribution plate, and the lower end of the water distribution plate is provided with a water outlet plate. The periphery of the water distribution plate has several grooves that are recessed towards its center. The surface of the water outlet plate is formed into a filter screen. After the water flows out of the water outlet through the water outlet channel, it falls onto the water distribution plate, and then falls onto the water outlet plate through the grooves on the periphery of the water distribution plate. It then falls evenly into the funnel through the filter screen on the surface of the water outlet plate.

8. A cold-hot separated saturated boiler according to claim 7, characterized in that The bottom of the brewing chamber is also provided with a drain outlet, and the lower end of the drain outlet is a water distribution plate.

9. A cold and heat separation saturated boiler according to claim 1, characterized in that, The water injection device includes a water tank, a flow meter, an electromagnetic pump, and an electromagnetic valve connected in sequence; the output end of the electromagnetic valve is connected to the water inlet and the input end of the multi-port connecting valve, respectively.

10. A coffee maker characterized in that, A cold and heat separation saturated boiler as described in any one of claims 1 to 9 is used.

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