Brewing structure with water vapor condensation function and coffee machine

Abstract

The utility model discloses a brewing structure and a coffee machine with a water vapor condensation function, which comprise a brewing chamber for brewing, a heater for providing hot water for the brewing chamber and a water inlet seat, and the water inlet seat comprises a water inlet communicated with fluid of the heater and a water outlet communicated with fluid of the brewing chamber. A transition plug is embedded in the water inlet base and provided with a transition channel through which water can pass, and at least part of the transition channel is not located on the connecting line of the water inlet and the water outlet of the water inlet base. In the preheating stage, high-temperature water vapor possibly and directly gushing out of the brewing chamber originally is condensed into small water drops after being subjected to buffer transition in the transition channel and flows out of the side wall of the brewing chamber to the waste water box, so that the use safety is improved, and a user is effectively prevented from being scalded due to contact with the high-temperature water vapor.

Description

Technical Field

[0001] This utility model relates to a brewing structure and a coffee machine with a water vapor condensation function. Background Technology

[0002] The brewing mechanism is one of the core components of a coffee machine, and its water inlet is typically equipped with a one-way valve. This design is reflected in several patents; for example, the Chinese utility model patent "Beverage Brewing Apparatus" with application number 202320662667.2 (authorization announcement number CN 220045596U) employs such technology. The disclosed device includes a water inlet seat, inside which is a one-way valve that allows liquid to enter only the outlet channel from the hydraulic chamber. When the pressure in the hydraulic chamber reaches the threshold of the one-way valve, the valve opens, allowing the liquid in the hydraulic chamber to enter the capsule in the first concave cavity through the outlet channel for extraction.

[0003] However, with continuous technological advancements, some new coffee machines on the market have begun to abandon the traditional one-way valve design, opting instead for a simpler direct-flow water system. This new water system design not only reduces production costs but also improves the precise control of water flow. Nevertheless, this design also presents new challenges: during the preheating process in the heater (boiler), water vapor in the pipes may be converted into high-temperature steam and ejected from the brewing chamber. This not only affects the user experience but may also pose potential safety risks.

[0004] Therefore, in order to further improve the performance and safety of coffee machines, the existing brewing structure still needs further optimization and improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to propose a brewing structure and coffee machine with water vapor condensation function in view of the above-mentioned technical status, so as to avoid high-temperature water vapor from being sprayed out of the brewing chamber during preheating.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a brewing structure with water vapor condensation function, including a brewing chamber for brewing, a heater for supplying hot water to the brewing chamber, and a water inlet seat. The water inlet seat includes a water inlet fluidly connected to the heater and a water outlet fluidly connected to the brewing chamber. The water inlet seat is characterized in that a transition plug is embedded in the water inlet seat, and the transition plug is provided with a transition channel that allows water to pass through. The transition channel is at least partially not on the line connecting the water inlet and the water outlet of the water inlet seat.

[0007] The transition channel can be formed inside the transition plug or on the surface of the transition plug. Preferably, the transition plug is cylindrical, and a groove-shaped first channel connecting the bottom and top surfaces of the transition plug is formed on the side of the transition plug; the transition channel includes the first channel.

[0008] Furthermore, the bottom surface of the transition plug is opposite to the inlet, the center of the bottom surface of the transition plug corresponds to the center of the inlet, and the bottom surface of the transition plug has a groove-shaped second channel, which connects to the first channel and extends to the center of the bottom surface of the transition plug; the transition channel includes the second channel.

[0009] To further buffer high-temperature water vapor, preferably, a boss is provided at the center of the bottom surface of the transition plug.

[0010] Preferably, the boss is surrounded by a slope that guides water vapor to the first channel. After the water vapor impacts the boss, it is guided by the slope connecting the first channel to the transition channel for transition and condensation.

[0011] To further increase the buffer transition distance of high-temperature water vapor, preferably, the top surface of the transition plug is opposite to the outlet, the center of the top surface of the transition plug corresponds to the center of the outlet, and the top surface of the transition plug has a groove-shaped third channel. The third channel is connected to the first channel and extends to the center of the top surface of the transition plug. The transition channel includes the third channel.

[0012] Preferably, the brewing structure further includes a positioning nut, which is located between the transition plug and the outlet of the water inlet seat. A positioning rod extends axially from the center of the top surface of the transition plug and passes through the central hole of the positioning nut.

[0013] Preferably, the transition plug is made of silicone. Silicone has good heat dissipation properties, as well as good elasticity and sealing properties, making it easy to adapt and realize the function of the transition plug.

[0014] Preferably, the positioning nut is made of stainless steel.

[0015] This utility model also proposes a coffee machine, characterized by including the above-mentioned brewing structure.

[0016] Compared to existing technologies, this invention embeds a transition plug inside the water inlet seat, interrupting the direct water flow system. The transition channel created by the plug adds a tortuous transition path to the direct water flow from the heater to the brewing chamber. During the preheating stage, the high-temperature steam that would otherwise erupt directly from the brewing chamber is buffered and condensed into small water droplets within the transition channel, flowing out from the side wall of the brewing chamber into the wastewater box. This design not only improves safety, effectively preventing users from being scalded by contact with high-temperature steam, but also reflects meticulous attention to detail and an ultimate pursuit of user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the brewing structure according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Partial sectional view;

[0019] Figure 3 This is a schematic diagram of the high-temperature water vapor flow path according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 Schematic diagram of the high-temperature water vapor flow path after removing the transition plug and positioning nut;

[0021] Figure 5 This is a partial exploded view of the brewing structure according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the transition plug according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the transition plug from another angle according to an embodiment of the present invention. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1-7 The diagram shows a preferred embodiment of a brewing structure and coffee machine with a steam condensation function according to this utility model. The brewing structure of this embodiment includes a brewing chamber 1, a heater 2, and a water inlet 3. The brewing chamber 1 is used for brewing beverages such as coffee. The heater 2 provides hot water to the brewing chamber 1 for brewing. The water inlet 3 connects the heater 2 and the brewing chamber 1. The water inlet 3 includes an inlet 31 and an outlet 32. The inlet 31 is in fluid communication with the heater 2, and the outlet 32 ​​is in fluid communication with the brewing chamber 1.

[0026] A transition plug 4 is embedded within the water inlet seat 3, cutting off the original straight water path from the inlet 31 to the outlet 32. The transition plug 4 has a transition channel 41 through which water can pass. This transition channel 41 is at least partially not on the line connecting the inlet 31 and outlet 32 ​​of the water inlet seat 3, thus adding a tortuous transition channel 41 to the straight water path from the heater 2 to the brewing chamber 1. During the preheating stage, the high-temperature steam (such as...) that would otherwise have directly erupted from the brewing chamber 1... Figure 4 As indicated by the middle arrow, after a buffer transition within the transition channel 41, the water condenses into small droplets and flows out from the side wall of the brewing chamber 1 into the wastewater box (as shown by the middle arrow). Figure 3 (As shown by the middle arrow) This effectively prevents users from being scalded by contact with high-temperature water vapor.

[0027] The transition plug 4 is made of silicone material with high sealing performance and strong heat dissipation capacity. It is roughly cylindrical, with its bottom surface facing the water inlet 31 of the water inlet seat 3 and its top surface facing the water outlet 32 ​​of the water inlet seat 3. Figure 6 and Figure 7 As shown. The center of the bottom surface of the transition plug 4 is opposite to the center of the inlet 31, and the center of the top surface is opposite to the center of the outlet 32. The transition channel 41 is formed in the shape of a groove on the surface of the transition plug 4, including a second channel 412, a first channel 411, and a third channel 413 connected in sequence. Alternatively, the transition channel 41 can also be formed inside the transition plug 4, but this is subject to more restrictions.

[0028] In this embodiment, there are four parallel first channels 411 distributed on the side of the transition plug 4, each extending along the axial direction of the transition plug 4 and connecting the bottom and top surfaces of the transition plug 4; the second channel 412 is opened on the bottom surface of the transition plug 4, connecting the first channel 411 and extending towards the center of the bottom surface of the transition plug 4, and there are also four second channels 412, arranged in a cross shape; the third channel 413 is opened on the top surface of the transition plug 4, connecting the first channel 411 and extending towards the center of the top surface of the transition plug 4, and there are also four third channels 413 arranged in a cross shape.

[0029] To further buffer high-temperature water vapor, a boss 43 is provided at the center of the bottom surface of the transition plug 4. A slope 44 is provided around the boss 43 to guide the water vapor to the first channel 411. After the water vapor impacts the boss 43, it is guided to the transition channel 41 for transition and condensation via the slope 44 connecting the first channel 411. A positioning rod 42 extends axially from the center of the top surface of the transition plug 4, and a slope 44 for guiding flow is also provided between the third channel 413 and the positioning rod 42.

[0030] Please refer to Figure 2 and Figure 5 The brewing structure also includes a stainless steel positioning nut 5, which engages with the positioning rod 42 of the transition plug 4 to position the transition plug 4. The positioning nut 5 has external threads, which are threaded between the transition plug 4 and the outlet 32 ​​of the inlet seat 3. Figure 2 As shown, the positioning rod 42 passes through the central hole 51 of the positioning nut 5, and there is a gap between the positioning rod 42 and the central hole 51 to allow air and water to pass through.

Claims

1. A brewing structure having a water vapor condensing function, comprising a brewing chamber (1) for performing brewing, a heater (2) for supplying hot water to the brewing chamber (1), and a water inlet seat (3) comprising a water inlet port (31) in fluid communication with the heater (2) and a water outlet port (32) in fluid communication with the brewing chamber (1), characterized in that, A transition plug (4) is embedded in the water inlet seat (3), and the transition plug (4) is provided with a transition passage (41) through which water can pass, and the transition passage (41) is at least partially not on the line connecting the water inlet (31) and the water outlet (32) of the water inlet seat (3).

2. The brewing structure according to claim 1, wherein, The transition plug (4) is in the shape of a cylinder, and a first channel (411) in the shape of a groove is formed in the side surface of the transition plug (4) and connects the bottom surface and the top surface of the transition plug (4); the transition passage (41) comprises the first channel (411).

3. The brewing structure according to claim 2, wherein, The bottom surface of the transition plug (4) is opposite to the water inlet (31), and the center of the bottom surface of the transition plug (4) corresponds to the center of the water inlet (31), and a second channel (412) in the shape of a groove is formed in the bottom surface of the transition plug (4), the second channel (412) is connected to the first channel (411) and extends to the center of the bottom surface of the transition plug (4); the transition passage (41) comprises the second channel (412).

4. The brewing structure according to claim 3, wherein A boss (43) is arranged at the center of the bottom surface of the transition plug (4).

5. The brewing structure according to claim 4, wherein, A slope (44) is arranged around the boss (43) to guide water vapor to the first channel (411).

6. The brewing structure according to claim 5, wherein, The top surface of the transition plug (4) is opposite to the water outlet (32), and the center of the top surface of the transition plug (4) corresponds to the center of the water outlet (32), and a third channel (413) in the shape of a groove is formed in the top surface of the transition plug (4), the third channel (413) is connected to the first channel (411) and extends to the center of the top surface of the transition plug (4), and the transition passage (41) comprises the third channel (413).

7. The brewing structure according to claim 6, characterized in that, The brewing structure further comprises a positioning nut (5) arranged between the transition plug (4) and the water outlet (32) of the water inlet seat (3), and a positioning rod (42) extends axially from the center of the top surface of the transition plug (4), and the positioning rod (42) is arranged in the center hole (51) of the positioning nut (5).

8. The brewing structure according to any one of claims 1 to 7, characterized in that, The transition plug (4) is made of silicone.

9. The brewing structure according to claim 7, wherein The positioning nut (5) is made of stainless steel.

10. A coffee maker characterized in that, The brewing structure according to any one of claims 1-9. The brewing structure according to any one of claims 1-9.

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