Brewing device of coffee machine

Abstract

The utility model relates to a brewing device of a coffee machine. The brewing device comprises a brewing head hinged to a main machine. A coffee containing cavity used for containing a coffee powder bag is formed between the brewing head and the main machine. A water outlet is formed in the brewing head, water is taken from a water supply unit in the main machine through the water outlet and distributed towards the coffee containing cavity, and a liquid outlet is formed in the bottom of the coffee containing cavity; a water distribution cover is arranged at the lower end of the brewing head, the water distribution cover forms a water distribution cavity on the lower end face of the brewing head, and water is injected into the water distribution cavity through the water outlet; the water distribution chamber comprises a water distribution tank and a water diversion tank which is arranged outside the water distribution tank and is communicated with the water distribution tank; a water diversion hole is formed in the water diversion tank; the water distribution tank is used for receiving hot water injected from the water outlet and uniformly distributing the hot water to the water distribution tank; the water distribution hole is communicated with the coffee containing cavity, and the water outlet range of the water distribution hole covers the whole coffee containing cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a brewing device of a coffee machine. Background Art

[0002] A coffee machine is a common kitchen appliance in our lives. Taking the more common drip coffee machine on the market as an example, when using it, first press the ground coffee powder into the coffee brewing device, then pour hot water into the coffee brewing device through the water outlet in the machine body, and finally the coffee flows out from the drip port below the coffee brewing device, thus completing the coffee brewing.

[0003] However, the internal structure of the coffee brewing device of the coffee machine in the prior art is relatively simple. When brewing coffee, only a single stream of water is injected from the top to the bottom along the center of the coffee brewing device. The coffee powder at the edge of the coffee brewing device is brewed by the diffusion of the water flow. The temperature of the water flow decreases to a certain extent during the brewing and diffusion process, which results in a poor brewing effect on the coffee powder at the edge of the coffee brewing device, resulting in a weak coffee taste. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a brewing device for a coffee machine.

[0005] The above-mentioned problem of the present invention is solved by the following technical solutions:

[0006] A brewing device of a coffee machine, comprising a brewing head hingedly connected to a main body; a coffee cavity for placing a coffee powder bag is formed between the brewing head and the main body; a water outlet is provided on the brewing head, the water outlet draws water from a water supply unit in the main body and distributes the water toward the coffee cavity; a liquid outlet is provided at the bottom of the coffee cavity;

[0007] A water distribution cover is provided at the lower end of the brewing head, and the water distribution cover forms a water distribution chamber on the lower end surface of the brewing head, and the water outlet is used to inject water into the water distribution chamber;

[0008] The water distribution chamber includes a water distribution trough and a water distribution trough provided outside the water distribution trough and communicated with the water distribution trough, wherein a water distribution hole is provided in the water distribution trough;

[0009] The water distribution trough is used to receive the hot water injected from the water outlet and evenly distribute it to the water distribution trough; the water distribution hole is connected to the coffee cavity, and the water outlet range of the water distribution hole covers the entire coffee cavity.

[0010] The above technical solution is further configured as follows: the water distribution trough comprises at least two connected water distribution sections, and the connecting section of the two connected water distribution sections is connected to the water distribution trough;

[0011] A plurality of water diversion holes are arranged along the length direction of the water diversion section.

[0012] The above technical solution is further configured as follows: the water distribution trough is arranged higher than the water distribution trough.

[0013] The above technical solution is further configured as follows: the water distribution trough includes a middle section and an extension section, and the extension section has a connecting portion with at least one of the water distribution sections.

[0014] By adopting the above technical solution, the extended section of the water distribution trough is directly connected to the water distribution section, shortening the water flow path and accelerating the hot water distribution efficiency; the liquid outlet trough design of the liquid outlet pipe promotes the rapid outflow of coffee liquid through the liquid pressure difference.

[0015] The above technical solution is further configured as follows: the water diversion cover is provided with a pressing portion protruding toward the coffee container.

[0016] By adopting the above technical solution, the coffee powder bag is fixed by the pressing part of the water diversion cover to prevent the powder bag from moving or the coffee powder inside from accumulating, thereby further ensuring the uniformity of extraction.

[0017] The above technical solution is further configured as follows: the water distribution trough is configured in a V shape.

[0018] The above technical solution is further configured as follows: a sealing ring is embedded on the lower end surface of the brewing head, and the sealing ring surrounds the water distribution groove;

[0019] A liquid guiding ring is provided at the lower part of the sealing ring, and the liquid guiding ring is provided with a necking structure.

[0020] By adopting the above technical solution, the sealing ring on the lower end face of the brewing head surrounds the water distribution groove, and the liquid guide ring with a necked design can guide the hot water seeping out of the gap back to the water distribution groove, reducing waste and maintaining a stable water temperature.

[0021] The above technical solution is further configured as follows: a filter seat is provided on the main unit in the coffee container, and a liquid outlet is provided on the filter seat;

[0022] An anti-drip area is further provided above the liquid outlet, and the anti-drip area covers the radial range of the liquid outlet.

[0023] By adopting the above technical solution, the anti-drip area above the liquid outlet of the filter seat covers the radial range of the liquid outlet, blocking the residual liquid from dripping after the coffee machine stops working, and keeping the use environment clean and tidy.

[0024] The above technical solution is further configured as follows: the anti-drip area includes a plurality of filter holes.

[0025] The above technical solution is further configured as follows: a liquid outlet pipe is provided extending downward from the center of the filter seat, an upper portion of the liquid outlet pipe is configured as a liquid outlet trough, and a liquid outlet hole is located at the bottom of the liquid outlet trough;

[0026] The anti-drip area is arranged at the upper pipe opening of the liquid outlet pipe.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The water distribution cover of this device uses a combination of a water distribution groove and a V-shaped water distribution groove to evenly distribute hot water to the coffee chamber through multiple water distribution holes, covering the entire coffee powder bag area. This solves the problem of insufficient edge brewing caused by traditional single water flow, ensures full extraction of coffee powder, and enhances the overall flavor.

[0029] 2. The water distribution cover, filter seat and other components adopt an embedded or detachable design (such as the anti-drip component is set independently), which is easy to clean and replace, and improves the convenience of long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of the brewing head opened relative to the main unit.

[0031] Figure 2 This is a schematic diagram of the structure of the brewing head cover being closed on the main unit.

[0032] Figure 3 It is a schematic diagram of the cross-sectional structure of the brewing part.

[0033] Figure 4 It is a structural schematic diagram of the upper end face of the water diversion cover.

[0034] Figure 5 It is a structural diagram of the lower end surface of the water diversion cover.

[0035] Figure 6 This is a schematic diagram of the cross-sectional structure of the water diversion cover installed on the brewing head.

[0036] Figure 7 Schematic diagram of the installation structure of the filter seat.

[0037] Figure 8 Schematic diagram of the cross-sectional structure of the filter seat.

[0038] Figure 9 This is a schematic structural diagram of the water distribution trough in Example 2.

[0039] The attached drawings are marked with: 100, main unit; 200, brewing head; 201, water outlet; 210, top holding protrusion; 10, water diversion cover; 10.1, water diversion hole; 11, pressing part; 21, water distribution trough; 21.1, extension section; 22, water diversion trough; 22.1, water diversion section; 22.2, connecting section; 30, sealing ring; 31, liquid guide ring; 40, filter seat; 41, top protrusion; 42, liquid outlet pipe; 43, anti-drip area; 43.1, top holding part; 44, liquid outlet trough; a, coffee container; b, liquid outlet. DETAILED DESCRIPTION

[0040] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0041] like Figure 1-9 As shown, the following embodiment provides a brewing device for a coffee machine.

[0042] Example 1

[0043] A brewing device for a coffee machine includes a brewing head 200 hingedly connected to a main unit 100; a coffee chamber a for placing a coffee powder packet is formed between the brewing head 200 and the main unit 100; a water outlet 201 is provided on the brewing head 200, and the water outlet 201 draws water from a water supply unit in the main unit 100 and distributes the water toward the coffee chamber a; a liquid outlet is provided at the bottom of the coffee chamber a;

[0044] The lower end of the brewing head 200 is sealed with a water distribution cover 10, and the water distribution cover 10 forms a water distribution chamber on the lower end surface of the brewing head. The water outlet 201 is used to inject water into the water distribution chamber.

[0045] The water distribution chamber includes a water distribution trough 21 and a water distribution trough 22 provided outside the water distribution trough 21 and in communication with the water distribution trough 21, wherein a water distribution hole 10.1 is provided in the water distribution trough 22;

[0046] The water distribution trough 21 is used to receive the hot water injected from the water outlet 201 and evenly distribute it to the water distribution trough 22; the water distribution hole 10.1 is connected to the coffee container a, and the water outlet range of the water distribution hole 10.1 covers the entire coffee container a.

[0047] The above is the basic solution of this embodiment.

[0048] Specific reference Figure 1 and Figure 2 As shown, a notch is provided at the upper end of the main unit 100, and the brewing head 200 is hinged at the top and can be rotated to fill the notch, while forming a coffee cavity a inside the opening.

[0049] During use, the brewing head 200 is opened, a coffee pod is placed into the coffee slot at the opening, and the brewing head 200 is closed, forming a closed coffee chamber a. The coffee machine is activated by pressing a button on the brewing head 200. The water supply unit in the main unit 100 heats room-temperature water and delivers it to the brewing head 200. The water is then injected into the coffee chamber a through the water outlet 201 of the brewing head 200, extracting the coffee pod in the coffee chamber a. The extracted coffee liquid is then discharged from the liquid outlet.

[0050] Reference Figure 3 As shown, in this embodiment, a water diversion cover 10 is sealed and installed on the lower end surface of the brewing head 200, and a water distribution chamber is formed between the water diversion cover 10 and the lower end surface of the brewing head 200. Hot water is injected into the water distribution chamber 20 through the water outlet 201. Under the action of the water diversion cover 10, the hot water is evenly output from the water diversion hole 10.1 of the water diversion cover 10 to the coffee volume a. The water outlet range of the water diversion hole 10.1 covers the entire coffee volume a, so that the coffee powder bag in the coffee volume a can be completely extracted.

[0051] In this embodiment, in order to ensure the uniformity of water output, the water distribution chamber includes a water distribution trough 21 and a water distribution trough 22, and the water distribution trough 21 is located in the center of the water distribution chamber, and the water distribution trough 22 is located on the periphery of the water distribution trough 21, so that the water injection range of the water distribution hole 10.1 can cover the entire coffee volume a.

[0052] When hot water enters the water distribution chamber through the water outlet 201, it is first injected into the water distribution tank 21. When the water distribution tank 21 is full of hot water, the hot water is diverted to the water distribution tank 22 connected to the water distribution tank 21, so that the hot water enters each water distribution tank 22 evenly and is then output from the water diversion hole 10.1 to the coffee chamber a.

[0053] Based on the above arrangement, when hot water enters the water distribution tank 21, it is not directly discharged to the coffee cavity a, but is first diverted and then discharged to the coffee cavity a after diversion, thus ensuring the consistency and uniformity of the water output.

[0054] In this embodiment, in order to ensure the water distribution effect, the water distribution trough 22 includes at least two connected water distribution sections 22.1, and the connecting section 22.2 of the two connected water distribution sections 22.1 is connected to the water distribution trough 21;

[0055] A plurality of water diversion holes 10.1 are arranged along the length direction of the water diversion section 22.1.

[0056] Preferably, the water diversion trough 22 is arranged in a V shape.

[0057] Specific reference Figure 4As shown, the two branches of the V-shaped water distribution trough 22 are water distribution sections 22.1, and the connecting part is the connecting section 22.2. Connecting section 22.2 is located near the middle water distribution trough 21 and is connected to the water distribution trough 21. Hot water injected into the water distribution trough 21 is output to the water distribution sections 22.1 on both sides through the connecting section 22.2, so that the speed and water volume of hot water entering the water distribution sections 22.1 are consistent, thereby ensuring that the hot water volume and water speed output from different water distribution holes 10.1 are within a uniform range.

[0058] Based on the above arrangement, in this embodiment, the two water diversion sections 22.1 of the water diversion trough 22 are radially arranged relative to the water distribution trough 21, so that the water diversion holes 10.1 arranged in the water diversion sections 22.1 are also radially arranged relative to the water distribution trough 21. In this way, when the water diversion holes 10.1 are injected into the coffee cavity a, they can cover the entire coffee cavity a.

[0059] Preferably, in this embodiment, the water distribution trough 21 is arranged higher than the water distribution trough 22 .

[0060] Specific reference Figure 4 、 Figure 6 and Figure 9 As shown, a groove is provided at the lower end of the brewing head 200. When the water diversion cover 10 is installed on the brewing head 200, the opening below the groove is sealed to form a water distribution groove 21. At the same time, the water distribution groove 22 is recessed in the water diversion cover 10, so that the position of the water distribution groove 21 is higher than that of the water diversion groove 22.

[0061] In order to connect the water distribution tank 21 and the water diversion tank 22, in this embodiment, the connecting section 22.1 of the water diversion tank 22 is located below the water distribution tank 21, and the hot water entering the water distribution tank 21 can automatically enter the connecting section 22.1, thereby being diverted.

[0062] In this embodiment, the water diversion cover 10 is arranged in a bowl shape, and the edge is curved upward to form a side wall, which wraps the lower end of the brewing head 200 to prevent hot water from overflowing.

[0063] Preferably, in this embodiment, a plurality of water distribution grooves 22 are provided and are evenly arranged around the water distribution groove 21, and the water distribution holes 10.1 are provided in the water distribution grooves 22. That is to say, only when hot water is distributed into the water distribution grooves 22 can the coffee cavity a be filled with water, thereby avoiding uneven water filling.

[0064] During actual installation, the upper end surface of the water diversion cover 10 and the lower end surface of the brewing head 200 are tightly attached. At the same time, a supporting protrusion 210 is provided on the lower end surface of the brewing head 200 facing the water diversion cover 10. The supporting protrusion 210 is located in the water distribution groove 21 area to support the middle part of the water diversion cover 10. At the same time, a gap is left between adjacent supporting protrusions 210 to accommodate hot water overflow.

[0065] In order to prevent the coffee powder bag from moving or the coffee powder inside the powder bag from moving during the extraction process, resulting in uneven powder bagging, in this embodiment, the water diversion cover 10 is provided with a pressing portion 11 protruding toward the side of the coffee chamber a.

[0066] Specific reference Figure 5 As shown, the pack pressing portion 11 is a convex portion provided on the water diversion cover 10, and a plurality of concave portions are provided on the upper end surface of the water diversion cover 10, which protrude toward the lower end of the water diversion cover 10 to form the pack pressing portion 11. When the brewing head 200 is closed onto the coffee receptacle a, the pack pressing portion 11 squeezes the coffee powder packet, thereby restricting the movement of the coffee powder packet and preventing it from moving freely in the coffee receptacle a. Moreover, in this embodiment, the pack pressing portion 11 is provided around the water distribution groove 21 and is located between two adjacent water diversion grooves 22. That is, the pack pressing portion 11 is located within the coverage range of the water diversion hole 10.1. Even if the water injection amount around the pack pressing portion 11 is inconsistent, the coffee powder in the coffee powder packet will not move, thereby ensuring the position of the coffee powder packet.

[0067] In this embodiment, the water diversion groove 22 is also provided to protrude toward one side of the coffee container a, and the protruding height is no greater than that of the pressing portion 11 .

[0068] In this embodiment, a sealing ring 30 is embedded on the lower end surface of the brewing head 200 , and the outer edge of the water diversion cover 10 is sealed to the sealing ring 30 .

[0069] Specific reference Figure 3 As shown, an annular sealing groove is provided on the lower end surface of the brewing head 200, and the sealing groove surrounds the entire water distribution chamber.

[0070] Preferably, a liquid guiding ring 31 is provided at the lower portion of the sealing ring 30 , and the liquid guiding ring 31 is configured as a necked structure.

[0071] Specific reference Figure 6 As shown, the liquid guide ring 31 is formed at the lower part of the main body of the sealing ring 30 and is in a constricted shape. That is, at least the inner wall of the liquid guide ring 31 is an inclined surface. A small amount of hot water seeps out from the gap between the brewing head 200 and the water diversion cover 10. When moving radially along the water diversion cover 10, it is stopped by the main body of the sealing ring 30 and flows downward along the liquid guide ring 31 into the coffee receptacle a, where it merges with the hot water in the coffee receptacle a.

[0072] In this embodiment, a filter seat 40 is provided in the coffee container a on the main unit 100, and a liquid outlet b is provided on the filter seat 40;

[0073] An anti-drip area 43 is further provided above the liquid outlet b, and the anti-drip area 43 can cover the radial range of the liquid outlet b.

[0074] A liquid outlet pipe 42 is provided downwardly extending from the center of the filter seat 40 . At least the upper portion of the liquid outlet pipe 42 is provided as a liquid outlet groove 44 . The liquid outlet hole b is located at the bottom of the liquid outlet groove 44 .

[0075] The anti-drip area 43 is provided at the upper pipe opening of the liquid outlet pipe 42 .

[0076] Specific reference Figure 7 and Figure 8 As shown, in this embodiment, a plurality of top protrusions 41 are provided on the filter seat 40 on the side facing the coffee chamber a, and the top protrusions 41 are used to press the lower end of the coffee powder bag, thereby restricting the movement of the coffee powder bag.

[0077] The liquid outlet pipe 42 is disposed in the liquid outlet of the coffee chamber a, or located above the liquid outlet, so that the coffee liquid flowing out of the liquid outlet hole b can be output to the outside of the host 100 through the liquid outlet.

[0078] Furthermore, in this embodiment, the inner diameter of the liquid outlet groove 44 is larger than the aperture of the liquid outlet hole b. This is because when the coffee liquid stored in the liquid outlet groove 44 is discharged through the liquid outlet hole b, due to the extremely small aperture of the liquid outlet hole b, the liquid in the liquid outlet groove 44 generates pressure on the flowing liquid in the liquid outlet hole b, causing the coffee liquid to be quickly discharged from the liquid outlet hole b.

[0079] Preferably, in this embodiment, the anti-drip area 43 includes a plurality of filter holes.

[0080] The anti-drip area 43 is set to have an 80-mesh filter hole. Its purpose is to prevent the residual liquid in the coffee chamber a from passing through the extremely small filter hole when the coffee machine stops discharging liquid, thereby preventing the residual liquid from dripping out of the liquid outlet b after the coffee machine is turned off.

[0081] In this embodiment, the anti-drip area 43 is provided as a separate anti-drip component. In other embodiments, the filter holes may also be directly formed on the filter seat 40 .

[0082] Furthermore, in this embodiment, an upwardly protruding holding portion 43.1 is also provided in the anti-drip area 43, which can limit the coffee powder bag and facilitate the removal of the anti-drip component for cleaning or replacement.

[0083] Example 2

[0084] This embodiment is an improvement made on the basis of embodiment 1, and its purpose is to provide another form of water distribution trough 21 to accelerate the water filling speed. The specific implementation method is as follows:

[0085] In this embodiment, to ensure that hot water can quickly enter the water distribution tank 22, the water distribution tank 21 includes a middle section and an extension section 21.1, and the extension section 21.1 has a connecting portion with at least one of the water distribution sections 22.1.

[0086] Specific reference Figure 9 As shown, in this embodiment, the middle section of the water distribution trough 21 is formed on the brewing head 200 by forming an upward concave portion. At the same time, an extension section 21.1 with the same upward concave portion is extended from the periphery of the water distribution trough 21 to form a water distribution chamber with a larger volume.

[0087] Hot water is injected into the middle section through the water outlet 201 and then into the extended section 21.1. The water in the extended section 21.1 flows directly into the water diversion section 22.1 connected to the extended section 21.1 for discharge. Since the water diversion section 22.1 is already filled with hot water, most of the hot water in the connecting section 22.2 flows into the other water diversion section 22.1, thereby accelerating the water filling speed of the coffee chamber a.

[0088] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A brewing device for a coffee machine, comprising a brewing head (200) hingedly connected to a main unit (100); a coffee container (a) for placing a coffee powder bag is formed between the brewing head (200) and the main unit (100); a water outlet (201) is provided on the brewing head (200), the water outlet (201) takes water from a water supply unit in the main unit (100) and distributes the water toward the coffee container (a); a liquid outlet is provided at the bottom of the coffee container (a); Its characteristics are: A water distribution cover (10) is provided at the lower end of the brewing head (200), the water distribution cover (10) forms a water distribution chamber on the lower end surface of the brewing head, and the water outlet (201) is used to inject water into the water distribution chamber; The water distribution chamber comprises a water distribution trough (21) and a water distribution trough (22) provided outside the water distribution trough (21) and in communication with the water distribution trough (21), wherein a water distribution hole (10.1) is provided in the water distribution trough (22); The water distribution trough (21) is used to receive the hot water injected from the water outlet (201) and evenly distribute it to the water distribution trough (22); the water distribution hole (10.1) is connected to the coffee container (a), and the water outlet range of the water distribution hole (10.1) covers the entire coffee container (a).

2. The brewing device of the coffee machine according to claim 1, characterized in that: The water distribution trough (22) comprises at least two connected water distribution sections (22.1), and the connecting section (22.2) of the two connected water distribution sections (22.1) is connected to the water distribution trough (21); A plurality of the water diversion holes (10.1) are arranged along the length direction of the water diversion section (22.1).

3. The brewing device of the coffee machine according to claim 1 or 2, characterized in that: The water distribution trough (21) is arranged higher than the water distribution trough (22).

4. The brewing device of the coffee machine according to claim 2, characterized in that: The water distribution trough (21) comprises a middle section and an extension section (21.1), and the extension section (21.1) has a communicating portion with at least one of the water distribution sections (22.1).

5. The brewing device of the coffee machine according to claim 1, characterized in that: The water diversion cover (10) is provided with a pressing portion (11) protruding toward the coffee container (a) side.

6. The brewing device of the coffee machine according to claim 1, characterized in that: The water distribution trough (22) is arranged in a V shape.

7. The brewing device of the coffee machine according to claim 1, characterized in that: A sealing ring (30) is embedded on the lower end surface of the brewing head (200), and the sealing ring (30) surrounds the water distribution groove (21); a liquid guide ring (31) is provided at the lower part of the sealing ring (30), and the liquid guide ring (31) is configured as a constricted structure.

8. The brewing device of the coffee machine according to claim 1, characterized in that: The host (100) is provided with a filter seat (40) located in the coffee container (a), and the filter seat (40) is provided with a liquid outlet (b); An anti-drip area (43) is also provided above the liquid outlet hole (b), and the anti-drip area (43) covers the radial range of the liquid outlet hole (b).

9. The brewing device of the coffee machine according to claim 8, characterized in that: The anti-drip area (43) includes a plurality of filter holes.

10. The brewing device of the coffee machine according to claim 8, characterized in that: A liquid outlet pipe (42) is provided downwardly extending from the center of the filter seat (40), an upper portion of the liquid outlet pipe (42) is provided as a liquid outlet trough (44), and a liquid outlet hole (b) is located at the bottom of the liquid outlet trough (44); The anti-drip area (43) is provided at the upper pipe opening of the liquid outlet pipe (42).

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