Cooling device, brewing system and beverage making apparatus

Abstract

The utility model discloses a cooling device, brew system and make drink equipment, and the cooling device includes cooling main part, and the cooling main part includes inner tube body and outer tube body. The inner tube body forms the liquid passage inside, and the liquid passage is used to flow hot drink, and the outer tube body is sleeved in the outside of inner tube body, and the inner wall of outer tube body and the outer wall of inner tube body are spaced apart, to define the cooling channel at interval arrangement, and the cooling channel is used to flow cold water, and at least the inner tube body is made of heat conduction material, to make cooling channel and liquid passage heat exchange connection. In the utility model, the inner tube body is made of heat conduction material, which makes the cold water in the cooling channel can efficiently cool the hot drink in the liquid passage in the flow process, and at the same time ensures the independence of hot drink circulation in the liquid passage, so that the cold water will not be mixed into the hot drink, and the cold drink obtained after cooling ensures that the composition is not affected, and has higher quality.

Description

Technical Field

[0001] This utility model relates to the field of beverage preparation equipment technology, specifically to a cooling device, a brewing system, and beverage preparation equipment. Background Technology

[0002] With the advancement of technology, people's demands for quality of life are gradually increasing. This is reflected in all aspects, such as the growing demand for a wider variety of beverages. Existing beverage making machines, such as coffee machines, generally use a boiler to generate high-temperature hot water, which is then used to extract coffee powder at high temperature in the brewing tank. The resulting coffee is usually quite hot. When users want to enjoy cold coffee, they typically add ice cubes to hot coffee. However, this method easily dilutes the coffee with ice, reducing its drinking quality. Utility Model Content

[0003] The main purpose of this invention is to provide a cooling device, a brewing system, and a beverage preparation equipment, which aims to solve the problem of reduced quality of cold drinks caused by traditional technologies.

[0004] To achieve the above objectives, this utility model proposes a cooling device applied to a brewing system to cool the hot beverage prepared in the brewing tank of the system. The cooling device includes a cooling body, which comprises:

[0005] An inner tube body, with a liquid passage formed inside, the liquid passage being used for the flow of hot beverages; and,

[0006] An outer tube is fitted onto the outside of the inner tube, and the inner wall of the outer tube and the outer wall of the inner tube are spaced apart to define a cooling channel at the spaced interval, the cooling channel being used to circulate cold water.

[0007] At least the inner tube is made of a thermally conductive material so that the cooling channel and the liquid passage are connected for heat exchange.

[0008] Optionally, the inner tube is suspended at the center of the outer tube, so that the cooling channel defined by the two together is arranged in a ring shape.

[0009] Optionally, the wall thickness of the inner tube is less than the wall thickness of the outer tube; and / or,

[0010] The radial cross-sectional area of ​​the liquid passage is smaller than that of the cooling passage.

[0011] Optionally, the thermal conductivity of the material used to make the outer tube is less than that of the material used to make the inner tube; and / or,

[0012] The thermal conductivity of the material used to make the outer tube is no greater than that of air.

[0013] Optionally, the length of the outer tube is not less than the length of the inner tube, so that the cooling channel completely covers the liquid passage.

[0014] Optionally, the cooling body is arranged in a spiral shape.

[0015] Optionally, the bends of the cooling body are connected by a rounded transition.

[0016] Optionally, the cooling device further includes clamps that connect and fix multiple spiral segments arranged sequentially along the axial direction of the cooling body.

[0017] In addition, to achieve the above objectives, this utility model also proposes a brewing system, including a brewing device and a cooling device as described above. The brewing device includes a brewing cylinder for preparing hot drinks, and the cooling body is connected to the brewing cylinder in a way that allows it to be switched on and off via a pipeline.

[0018] In addition, to achieve the above objectives, this utility model also proposes a beverage preparation device, including the brewing system described above.

[0019] In the technical solution provided by this utility model, the liquid passage can be connected to the hot beverage prepared in the brewing tank; the cooling passage can be connected to cold water. Since the inner tube is made of a heat-conducting material, the cold water in the cooling passage can efficiently cool the hot beverage in the liquid passage during the flow process, while simultaneously ensuring the independence of the hot beverage flow within the liquid passage. This prevents cold water from mixing with the hot beverage, ensuring that the cooled beverage's composition remains largely unaffected, resulting in a higher quality product. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A perspective view of an embodiment of the cooling device provided by this utility model;

[0022] Figure 2 for Figure 1 Exploded view of the main structure of the intermediate cooling unit;

[0023] Figure 3 for Figure 1A schematic diagram of the central cooling unit from an axial perspective;

[0024] Figure 4 for Figure 3 Enlarged structural diagram of the connection between the inner and outer tubes;

[0025] Figure 5 A schematic diagram of the liquid circuit connection of an embodiment of the brewing system provided by this utility model.

[0026] Explanation of icon numbers:

[0027] 100 Cooling device; 110 Cooling main body; 111 Inner tube; 111a Liquid passage; 112 Outer tube; 112a Cooling passage; 120 Clamping fitting; 200 Brewing device; 210 Brewing cylinder; 300 Boiler device; 310 Boiler main body; 410 Liquid inlet pipe; 420 Pump body; 510 First pipe; 520 Second pipe; 530 Third pipe.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] 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 some embodiments of the present utility model, and not all embodiments. 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.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] Please see Figures 1 to 5 This utility model provides a cooling device 100 and its applicable brewing system and beverage making equipment.

[0033] In addition to the cooling device 100, the brewing system may also include a brewing device 200, a boiler device 300, and a liquid inlet assembly.

[0034] The brewing device 200 includes a brewing cylinder 210. A brewing chamber is formed inside the brewing cylinder 210. The brewing chamber has at least one open end (e.g., an upward-facing upper open end, a downward-facing lower open end, etc.). Each open end can be opened or closed as needed, for example, by a piston. When at least one open end of the brewing chamber (e.g., the upward-facing upper open end) is opened, powder, for example, can be introduced into the brewing chamber through this open end.

[0035] The boiler unit 300 includes a boiler body 310. The boiler body 310 and the brewing tank 210 can be connected in a switchable manner through a first pipe 510.

[0036] In order to allow the required water to be supplied to the boiler body 310 as needed, the liquid inlet assembly generally includes at least a liquid inlet pipe 410. The liquid inlet pipe 410 and the boiler body 310 are connected in a switchable manner via a piping structure, so that when open, the required volume of water can be supplied to the boiler body 310 via the liquid inlet pipe 410. Then, by operating, for example, a heating element in the boiler unit 300, the water in the boiler body 310 is heated to hot water at the target temperature.

[0037] Furthermore, to enable more rapid access of external cold water into the boiler body 310, the inlet assembly typically includes a pump body 420. The pump body 420 is positioned at any point along the flow path between the inlet pipe 410 and the boiler body 310. The pump body 420 provides sufficient power for the flow of cold water.

[0038] When high temperature and pressure are required for brewing and extracting powder, the openings of the brewing chamber must be closed. At this time, the first pipeline 510 is opened, and hot water generated in the boiler body 310 is introduced into the brewing chamber. Then, the brewing device 200 uses the high-temperature hot water to brew and extract the powder in the brewing chamber to produce a hot beverage.

[0039] The cooling device 100 includes a cooling body 110, which includes an inner tube 111 and an outer tube 112.

[0040] The inner tube 111 forms a liquid passage 111a inside. The liquid passage 111a is used to circulate hot beverages. The liquid passage 111a is directly connected to the brewing chamber or through a pre-set second pipe 520, so that when the user requests a cold beverage, the hot beverage can be introduced from the brewing chamber into the liquid passage 111a.

[0041] The outer tube 112 is fitted onto the outside of the inner tube 111. The inner wall of the outer tube 112 and the outer wall of the inner tube 111 are spaced apart to define a cooling channel 112a at the spaced interval. The cooling channel 112a is used to circulate cold water. Specifically, for example, the cooling channel 112a is connected to the inlet pipe 410 of the liquid inlet assembly.

[0042] At least the inner tube 111 is made of a thermally conductive material to allow for heat exchange between the cooling channel 112a and the liquid passage 111a. Because the inner tube 111 is made of a thermally conductive material, during the flow process, the cold water in the cooling channel 112a can efficiently cool the hot beverage in the liquid passage 111a, while simultaneously ensuring the independence of the hot beverage flow within the liquid passage 111a. This prevents cold water from mixing with the hot beverage, ensuring that the cooled beverage retains its composition and thus maintains higher quality.

[0043] In addition to the brewing system mentioned above, beverage making equipment may also include a casing.

[0044] The type of brewing machine mentioned in this invention is not limited. Depending on actual needs, the brewing machine may refer to a brewing machine that only has a brewing function. In this case, the corresponding brewing system can also be a device that can realize this brewing function.

[0045] Alternatively, the brewing machine can refer to a brewing machine capable of brewing at least two ingredients. In this case, the corresponding brewing system is also a device that can perform this brewing function.

[0046] Of course, the brewing machine can also be further enhanced with functions such as grinding, weighing, and cleaning, without any limitations.

[0047] The beverage preparation equipment used in the brewing system generally has a pre-installed liquid outlet pipe. At least the opening of the liquid outlet pipe is exposed outside the machine casing, forming the beverage outlet. The brewing tank 210 can directly output hot beverages through the liquid outlet pipe. Alternatively, the brewing tank 210 can indirectly output cold beverages through the liquid passage 111a and the liquid outlet pipe. The liquid outlet pipe and its outlet for hot beverages can be integrated with the liquid outlet pipe and its outlet for cold beverages, or they can be separate components.

[0048] In view of the above, both the inner tube 111 and the outer tube 112 are hollow structures. Therefore, the inner tube 111 can directly define the liquid passage 111a. By inserting the inner tube 111 into the hollow structure of the outer tube 112, the inner tube 111 and the outer tube 112 can jointly enclose and define the cooling passage 112a.

[0049] In order to enable the cold water in the cooling channel 112a to exchange heat with the hot beverage in the liquid transfer channel 111a, in specific applications, at least the inner tube 111 is made of a thermally conductive material. Furthermore, the thermal conductivity of the inner tube 111 can be set to be relatively high, facilitating more efficient heat transfer from the hot beverage to the cold water.

[0050] It should be noted that the radial cross-sectional shape of the inner tube 111 and / or the outer tube 112 is not limited in this application. For example, its outer contour shape can be, but is not limited to, a perfect circle, an ellipse, other circles, or polygons.

[0051] Therefore, when the inner tube 111 is inserted into the outer tube 112, the inner tube 111 may abut against the inner wall of one side of the outer tube 112. At this time, the cooling channel 112a defined between the outer wall of the inner tube 111 and the inner wall of the outer tube 112 is approximately crescent-shaped.

[0052] Alternatively, the inner tube 111 can be separated between the outer tube 112, that is, the inner tube 111 abuts against the radial side walls of the outer tube 112 respectively. In this case, the cooling channel 112a defined by the outer wall of the inner tube 111 and the inner wall of the outer tube 112 is approximately two crescent-shaped sections separated circumferentially.

[0053] Alternatively, the inner tube 111 can be suspended within the hollow structure of the outer tube 112, meaning that the outer wall of the inner tube 111 and the inner wall of the outer tube 112 do not contact each other. In this case, the cooling channel 112a defined by the outer wall of the inner tube 111 and the inner wall of the outer tube 112 is approximately annular.

[0054] It is understandable that the shape of the cooling channel 112a can significantly affect the specific heat exchange points and efficiency of the hot beverage by the cold water. For example, when the cooling channel 112a is located at a localized position circumferentially within the liquid passage 111a, the hot beverage at that location will primarily undergo relatively direct heat exchange. The remaining hot beverage within the liquid passage 111a, where no cooling channel 112a is located, needs to be combined with the cooled beverage to achieve cooling.

[0055] Therefore, as Figures 1 to 4 As shown, preferably, the inner tube 111 is suspended inside the outer tube 112, and the two together enclose and define a ring-shaped cooling channel 112a, so as to cover the entire circumference of the liquid passage 111a and realize all-round cooling of the hot beverage in the liquid passage 111a.

[0056] In practical applications, to achieve the goal of suspending the inner tube 111 within the outer tube 112, in one embodiment, a portion of the inner tube 111 can extend beyond the outer tube 112 and be connected to the brewing tank 210 via a connecting pipe, or connected to an external liquid outlet pipe of the entire machine via a connecting pipe. Using the aforementioned connecting pipe or liquid outlet pipe, the position of the inner tube 111 relative to the outer tube 112 is maintained.

[0057] Alternatively, in another embodiment, an abutment protrusion may be added in a localized area between, for example, the inner tube 111 and the outer tube 112. This abutment protrusion may protrude from the radial outer wall of the inner tube 111 and / or the radial inner wall of the outer tube 112. Furthermore, the abutment protrusion will not be continuously arranged along the entire outer circumference of the inner tube 111 to avoid excessive obstruction of the cooling channel 112a. The abutment protrusions may be distributed in a point-like pattern at localized locations along the length of the inner tube 111 and the outer tube 112, which also helps to minimize excessive interference with the flow of the cooling channel 112a.

[0058] Then as Figure 4 As shown, in order to optimize the cooling effect of the cooling body 110, in a further embodiment, the wall thickness D1 of the inner tube 111 can be set to be smaller than the wall thickness D2 of the outer tube 112.

[0059] The wall thickness D1 of the inner tube 111 should be set as small as possible. This can effectively shorten the heat exchange distance between the hot beverage in the liquid passage 111a and the cold water in the cooling passage 112a. In other words, the heat dissipated by the hot beverage in the liquid passage 111a can be more easily absorbed by the cold water in the cooling passage 112a.

[0060] Correspondingly, the wall thickness D2 of the outer tube 112 needs to be set to a larger value. Similarly, by appropriately increasing the wall thickness D2 of the outer tube 112, the heat exchange distance between the cold water in the cooling channel 112a and the air in the external environment can be effectively extended. This ensures that the cold water in the cooling channel 112a is not significantly affected by the external environment and will not heat up, thus helping to ensure more efficient cooling of the hot beverage in the liquid passage 111a.

[0061] Furthermore, the radial cross-sectional area of ​​the liquid passage 111a is smaller than that of the cooling passage 112a. The radial cross-sectional area of ​​the liquid passage 111a can be reduced by appropriately decreasing the inner diameter R1 of the inner tube 111. This can slow down the flow rate of hot beverages in the liquid passage 111a to some extent, and also increase the total heat exchange area of ​​the same amount of hot beverage in the liquid passage 111a to some extent.

[0062] Correspondingly, the radial cross-sectional area of ​​the cooling channel 112a can be increased by appropriately enlarging the inner diameter R2 of the outer tube 112, thereby increasing the difference between the outer diameter of the inner tube 111 and the inner diameter R2 of the outer tube 112. When the radial cross-sectional area of ​​the cooling channel 112a is appropriately increased, more cold water can flow through the same radial cross-sectional area. That is, more cold water can be used to exchange heat with the hot beverage at the same radial cross-section.

[0063] Furthermore, the thermal conductivity of the material used to make the outer tube 112 is lower than that of the material used to make the inner tube 111. It can be understood that when the thermal conductivity of the material used to make the outer tube 112 is lower, its thermal conductivity decreases, and its insulation performance improves, which helps to prevent excessive heat exchange between the cold water in the cooling channel 112a and the air in the external environment. Further, the thermal conductivity of the material used to make the outer tube 112 is no greater than that of air. This effectively isolates the heat exchange between the external air and the cold water in the cooling channel 112a.

[0064] Similarly, when the thermal conductivity of the material used to make the inner tube 111 is high, its thermal conductivity is significantly improved, which helps to accelerate the heat exchange between the hot beverage in the liquid passage 111a and the cold water in the cooling passage 112a, so that the hot beverage can be cooled down more quickly.

[0065] In practical applications, the length of the outer tube 112 is not less than the length of the inner tube 111, so that the cooling channel 112a completely covers the liquid passage 111a. In this way, the cold water flowing in the cooling channel 112a can completely cover the flow path of the hot beverage flowing in the liquid passage 111a, thereby ensuring that the hot beverage in each channel section of the liquid passage 111a has sufficient cold water for effective cooling.

[0066] The cooling body 110 is mainly formed by the inner tube 111 and the outer tube 112 connected together. The overall shape of the cooling body 110 is not limited; it can be, but is not limited to, an elongated shape extending in a certain direction, a labyrinthine shape, etc. Specifically, as shown... Figures 1 to 3 In the structure shown, the cooling body 110 is arranged in a spiral shape. This helps to extend the path length of the liquid passage 111a and the cooling passage 112a respectively, and also minimizes the space occupied by the cooling body 110 in the horizontal, vertical and longitudinal directions, making the cooling body 110 more compact and facilitating its installation in beverage making equipment.

[0067] With a smaller overall size for the cooling unit 110 and a larger installation area within the casing, the spacing between the cooling unit 110 and the boiler body 310 can be minimized. Furthermore, the smaller cooling unit 110 helps reduce its external surface area; that is, even if some heat generated at the boiler body 310 reaches the cooling unit 110, the heat exchange area between them is minimized, reducing heat interference with the cooling unit 110.

[0068] When the cooling body 110 extends spirally as described above, it forms multiple spiral segments and bends connecting each pair of adjacent spiral segments. At this time, the bends in the cooling body 110, i.e., the bends connecting the segments, are connected by an arc transition, forming a bend. Compared to setting the bends at right angles or T-angles, bends facilitate smoother flow of hot beverages in the liquid passage 111a and cold water in the cooling passage 112a. This avoids excessive collisions between hot beverages or cold water and the pipe walls during flow, which could affect the quality of the final chilled beverage. Furthermore, it prevents excessive residue of hot beverages, especially hot beverages, in the liquid passage 111a, contributing to improved overall chilled beverage preparation quality.

[0069] Similarly, when the cooling body 110 extends spirally as described above, it forms multiple spiral segments and bent connecting segments between each pair of adjacent spiral segments. To prevent loosening between the spiral segments, which could lead to structural instability of the cooling body 110, in a further embodiment, the cooling device 100 also includes a clamping member 120. The clamping member 120 connects and fixes the multiple spiral segments of the cooling body 110 arranged sequentially along its axial direction. The clamping member 120 can extend radially along the cooling body 110 to span all spiral segments at the same location. This facilitates a tight connection of the spiral segments via the same clamping member 120. When the structure of the cooling body 110 remains stable, it helps maintain the smooth flow of hot and cold water within it, thereby improving the stability and reliability of the cooling effect of cold water on hot drinks.

[0070] As described above, the boiler body 310 is scalably connected to the liquid inlet pipe 410 via the third pipe 530. Correspondingly, the liquid inlet pipe 410, the third pipe 530, and the boiler body 310 constitute the first flow path for cold water. The cooling body 110 is connected to the liquid inlet pipe 410 via a fourth pipe. Correspondingly, the liquid inlet pipe 410, the fourth pipe, and the cooling channel 112a constitute the second flow path for cold water.

[0071] In one application, the inlet line 410 can be configured to connect the third line 530 and the fourth line via a switching valve, so that the third line 530 and the fourth line can be respectively connected by controlling the on / off state of the switching valve.

[0072] Specifically, the liquid inlet pipe 410 can be configured to generally include one inlet section and two outlet sections. The inlet section and the two outlet sections are generally connected in a Y-shape. The inlet section is connected to an external cold water source. For example, the inlet section can be equipped with a connector structure that can be connected to an external faucet. This connector structure is exposed outside the unit to facilitate a smoother connection with the external faucet. One end of each of the two outlet sections is connected to the inlet section, and the other end of each outlet section is connected to the first inlet pipe section and the second inlet pipe section, respectively.

[0073] The aforementioned switching valve can be installed at the connection between the inlet section and the two outlet sections. The pump body 420 can be installed, for example, at the inlet section. The two outlet sections are independent of each other, which allows them to be configured to fit the assembly positions of the boiler body 310 and the cooling body 110 respectively. For example, the pipe length, pipe diameter, and material of the two outlet sections can be flexibly adjusted according to actual needs.

[0074] Alternatively, in another application, the length of the first flow path can be set to be greater than that of the second flow path. Furthermore, the second flow path can be partially or entirely connected to the first flow path.

[0075] It is understandable that the cold water flowing in the cooling channel 112a is wholly or partially connected to the boiler body 310. Because the cooling channel 112a exchanges heat with the hot liquid in the liquid passage 111a once or multiple times, the cold water will be transformed into warm water with a certain temperature increase and a certain degree of reduction in subsequent cooling capacity.

[0076] Therefore, for the boiler body 310, the temperature of the warm water entering the boiler body 310 must be higher than the temperature of the cold water. Furthermore, the temperature difference between this warm water and the final target temperature required by the boiler body 310 must be smaller. By introducing warm water into the boiler body 310, the required temperature rise within the boiler body 310 can be reduced, meaning the boiler body 310 can heat the warm water into the required hot water with relatively less power. This makes the hot water production process more time-saving and energy-efficient.

[0077] As for cooling channel 112a, since at least part of the warm water enters the boiler body 310, it is necessary to replenish a sufficient amount of cold water from the inlet pipe 410 to maintain sufficient cooling intensity in the cooling body 110. This ensures that, on the one hand, the water flowing in cooling channel 112a remains at a low temperature sufficient for effective heat exchange with hot drinks, and on the other hand, it guarantees the continuous flow of water in cooling channel 112a. Both of these factors contribute to improving the heat exchange effect on hot drinks.

[0078] To achieve the above objectives, the connection scheme of the liquid inlet assembly, boiler unit 300, and cooling device 100 can be configured, for example, as follows: the fourth pipe and the liquid inlet pipe 410 are connected. The third pipe 530 can be connected to any section of the cooling channel 112a. For ease of understanding, the connection point between the fourth pipe and the cooling channel 112a can be defined as the upstream end of the cooling channel 112a. Therefore:

[0079] In one specific embodiment, the third pipe 530 can be connected to the downstream end of the cooling channel 112a. In this case, the second flow path is entirely connected to the first flow path. All the cold water flowing within the cooling channel 112a enters the boiler body 310.

[0080] Alternatively, in another specific embodiment, the third pipe 530 can be connected to the section between the upstream and downstream ends of the cooling channel 112a. In this case, the second flow path is partially connected to the first flow path. The cold water flowing in the cooling channel 112a partially enters the boiler body 310.

[0081] It is understandable that when the flow rate of warm water circulating in the cooling channel 112a is just enough to meet or less than the water replenishment requirements of the boiler body 310, the warm water in the cooling channel 112a can be completely connected to the boiler body 310 as described above. This ensures that a sufficient amount of warm water is provided to the boiler body 310, ensuring that the water replenishment of the boiler body 310 is more timely and sufficient.

[0082] Conversely, when the flow rate of warm water in cooling channel 112a exceeds the water replenishment requirement of boiler body 310, the warm water in cooling channel 112a can be partially diverted into boiler body 310. As for the remaining warm water in cooling channel 112a:

[0083] In one specific embodiment, the remaining warm water can be returned to, for example, the upstream end of the cooling channel 112a, to continue participating in the next cooling cycle for hot drinks, together with the additional cold water. Since the volume of the remaining warm water is relatively small compared to the volume of water supplied to the boiler body 310 or the volume of cold water supplied to the additional cooling channel 112a, the mixing of this remaining warm water with the additional cold water will not cause an excessive increase in overall water temperature, thus sufficiently meeting the cooling requirements for the next hot drink cycle.

[0084] Alternatively, in another specific embodiment, the cooling device 100 may also include a waste discharge component. This waste discharge component, for example, forms a waste discharge chamber. The waste discharge chamber is connected to the downstream end of the cooling channel 112a. This allows the remaining warm water flowing within the cooling channel 112a to directly enter the waste discharge chamber of the waste discharge component and be ultimately discharged as waste liquid. Of course, when the brewing machine is pre-installed with, for example, a tray containing a water collection tank, the tray can constitute the aforementioned waste discharge component. The water collection tank then constitutes the waste discharge chamber.

[0085] Based on one or more of the above embodiments, it can be understood that the third pipe 530 is designed to be on and off. This allows the third pipe 530 to intermittently replenish water to the boiler body 310 according to actual needs. That is, when the boiler body 310 needs water replenishment, the third pipe 530 can be controlled to connect the boiler body 310 and the liquid inlet pipe 410. Conversely, when the boiler body 310 does not need water replenishment, the third pipe 530 can be controlled to disconnect the boiler body 310 and the liquid inlet pipe 410.

[0086] Depending on actual needs, the fourth pipe can also be configured to be switchable. That is, the fourth pipe can be switched on and off between the cooling channel 112a and the liquid inlet pipe 410. Similarly, this allows the fourth pipe to intermittently replenish water to the cooling channel 112a as needed. Specifically, when the cooling channel 112a requires water replenishment, the fourth pipe can be controlled to open the cooling channel 112a and the liquid inlet pipe 410. Conversely, when the cooling channel 112a does not require water replenishment, the fourth pipe can be controlled to disconnect the cooling channel 112a and the liquid inlet pipe 410.

[0087] Alternatively, depending on actual needs, the fourth pipe, cooling channel 112a, and liquid inlet pipe 410 can remain connected. In this case, the liquid inlet pipe 410 continuously supplies external cold water to the cooling channel 112a via the fourth pipe. This ensures that the cold water in the cooling channel 112a remains flowing, guaranteeing that the heat exchange with the hot beverage is always with cooler hot water, rather than lukewarm water that has undergone at least one heat exchange.

[0088] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cooling device, characterized in that, The cooling device is applied to the brewing system to cool the hot beverage produced in the brewing tank of the brewing system. The cooling device includes a cooling body, which comprises: An inner tube body, with a liquid passage formed inside, the liquid passage being used for the flow of hot beverages; and, An outer tube is fitted onto the outside of the inner tube, and the inner wall of the outer tube and the outer wall of the inner tube are spaced apart to define a cooling channel at the spaced interval, the cooling channel being used to circulate cold water. At least the inner tube is made of a thermally conductive material so that the cooling channel and the liquid passage are connected for heat exchange.

2. The cooling device as described in claim 1, characterized in that, The inner tube is suspended at the center of the outer tube, so that the cooling channel defined by the two together is arranged in a ring shape.

3. The cooling device as described in claim 1, characterized in that, The wall thickness of the inner tube is less than the wall thickness of the outer tube; and / or, The radial cross-sectional area of ​​the liquid passage is smaller than that of the cooling passage.

4. The cooling device as described in claim 1, characterized in that, The thermal conductivity of the material used to make the outer tube is less than that of the material used to make the inner tube; and / or, The thermal conductivity of the material used to make the outer tube is no greater than that of air.

5. The cooling device as described in claim 1, characterized in that, The length of the outer tube is not less than the length of the inner tube, so that the cooling channel completely covers the liquid passage.

6. The cooling device as claimed in claim 1, characterized in that, The cooling body is arranged in a spiral shape.

7. The cooling device as claimed in claim 6, characterized in that, The bending points of the cooling body are connected by a rounded transition.

8. The cooling device as described in claim 6, characterized in that, The cooling device also includes clamps, which connect and fix multiple spiral segments arranged sequentially along the axial direction of the cooling body.

9. A brewing system, characterized in that, The invention includes a brewing device and a cooling device as described in any one of claims 1 to 8, the brewing device comprising a brewing cylinder for preparing hot beverages, and the cooling unit being on / off connected to the brewing cylinder via a pipeline.

10. A beverage preparation device, characterized in that, Includes the brewing system as described in claim 9.

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