Brewing device, sealed fermentation coffee cup and integrated coffee machine

Abstract

The embodiment of the utility model provides a brewing device, a sealed fermentation coffee cup and an integrated coffee machine. A brewing device and a sealed fermentation coffee cup are installed on the integrated coffee machine. The brewing device comprises a brewing box, a liquid outlet is formed in the bottom of the brewing box, a flow constant-speed mechanism is arranged on the brewing box, and the flow constant-speed mechanism controls fluid in the brewing box to flow out of the liquid outlet at a constant speed. The brewing device utilizes the relationship of air pressure difference to form the balance between the inside of the brewing box and the outside air pressure, and the function of constant flow speed is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of coffee beverage preparation technology, and in particular relates to a brewing device, a sealed fermentation coffee cup, and an integrated coffee machine. Background Technology

[0002] Iced drip coffee is made by dripping water, a mixture of ice and water, or cold water, from ice cubes to water.

[0003] The operation of ice drip coffee machines on the market is cumbersome, the drip rate is unstable and requires frequent adjustments, and they do not have a heat preservation function or a sealed fermentation environment.

[0004] For example, patent application CN202520022814.9 describes a coffee machine that does not have a constant flow rate function and does not have a sealed fermentation environment. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a brewing device, a sealed fermentation coffee cup, and an integrated coffee machine.

[0006] This utility model embodiment employs a brewing device, including a brewing chamber. The bottom of the brewing chamber has a liquid outlet, and a constant flow rate mechanism is installed on the brewing chamber. This mechanism controls the flow rate of the liquid inside the brewing chamber to maintain a constant flow rate out of the liquid outlet. The brewing chamber is sealed. The constant flow rate mechanism includes an air inlet channel constructed inside the brewing chamber. The input end of the air inlet channel communicates with the outside, and the output end extends below the liquid surface inside the brewing chamber. The brewing device utilizes the pressure difference; outside air enters the brewing chamber through the air inlet channel, creating a pressure balance between the inside and outside of the brewing chamber, thus achieving a constant flow rate.

[0007] Furthermore, the top of the brewing box is equipped with a lid, which includes an upper lid and a lower lid. The lower lid is recessed in the middle and a first sealing ring is fitted on the outside of the lower lid. An air inlet pipe is fixedly connected to the bottom of the lower lid. The top of the air inlet pipe is connected to the top of the lower lid. Several air inlet holes are opened on the top edge of the lower lid. The upper lid covers the top of the lower lid.

[0008] When the lower cover is installed on the brewing box, it is interference-fitted to the inner wall of the brewing box via a first sealing ring, and the bottom end of the air inlet pipe extends below the liquid surface inside the brewing box. The lower cover seals the brewing box, and the air inlet, the space between the upper and lower covers, and the air inlet pipe form an air intake channel.

[0009] A sealed fermentation coffee cup includes a cup body that receives liquid from a brewing chamber, a filter cup with an outwardly extending rim placed on the cup body, the top of the cup body supporting the rim of the filter cup, and the body of the filter cup placed inside the cup body. When the filter cup is placed on the cup body, it seals the cup body. Water drips into the coffee grounds in the filter cup, extracting coffee liquid, which is then dripped into the cup body for sealed fermentation.

[0010] Furthermore, a second sealing ring is fitted onto the outer wall of the filter cup. When the filter cup is placed on the cup body, it fits the inner wall of the cup body with the second sealing ring. The filter cup seals the cup body with the second sealing ring, thereby enabling sealed fermentation of the coffee within the cup body.

[0011] Furthermore, the filter cup is provided with a filter cover, and a third sealing ring is fitted onto the filter cover. When the filter cover is on the filter cup, the filter cover is press-fitted with the inner wall of the filter cup through the third sealing ring. The filter cover is used to seal the filter cup; it can be removed when water droplets are added.

[0012] An all-in-one coffee machine includes a refrigerator. A brewing device as described above is mounted on the top of the refrigerator. A sealed fermentation coffee cup as described above is placed inside the refrigerator, and the sealed fermentation coffee cup receives the liquid dispensed from the brewing device. The refrigerator has at least one channel connecting to the outside to facilitate smooth dripping of water.

[0013] Furthermore, the brewing head has a fluid channel and a threaded hole that connects to the fluid channel. The threaded hole is located inside the refrigerator. The brewing head also has a knob, one end of which is a screw-like structure that engages with the threaded hole. The brewing head is used to introduce the brewing device into the refrigerator to dispense liquid, and the flow rate can be adjusted by rotating the knob to change the distance the knob is screwed into the fluid channel.

[0014] Furthermore, a bracket is fixedly connected to the top of the refrigerator. This bracket cooperates with the brewing box, and an insulation layer is installed on the outside of the bracket. The bracket is used to position and place the brewing box, facilitating the connection of the brewing head to the connector at the bottom of the brewing box.

[0015] Furthermore, it also includes a brewing head assembly, which includes a brewing head and a connector. The brewing head is fixed to the top of the refrigerator and extends through the top of the refrigerator. The connector is connected to the liquid outlet at the bottom of the brewing box and is used to connect with the top of the brewing head to introduce the liquid in the brewing box into the refrigerator and out.

[0016] Furthermore, the refrigerator is equipped with a PTC cooling chip, which has a cooling surface and a heating surface. A heat-conducting mechanism is installed on both the cooling and heating surfaces of the PTC cooling chip. The heat-conducting mechanism for the cooling surface is located inside the refrigerator, while the heat-conducting mechanism for the heating surface is located outside the refrigerator. Each heat-conducting mechanism includes a heat-conducting plate and a fan, with the fan blowing air through the heat-conducting plate. The heat-conducting mechanism inside the refrigerator creates air circulation within the refrigerator to maintain a low temperature inside; the heat-conducting mechanism outside the refrigerator dissipates heat from the PTC cooling chip.

[0017] Compared with the existing technology, the brewing device proposed in this technical solution utilizes the relationship of air pressure difference. Outside air enters through the air inlet hole of the lower cover into the air inlet pipe and finally enters the brewing box, forming a balance between the air pressure inside the brewing box and the outside air pressure, thus achieving the function of constant flow rate.

[0018] The sealed fermentation coffee cup proposed in this technical solution uses a filter cup to seal the cup body. Water drips down to soak the coffee powder, and after extraction, the coffee liquid is formed and then drips into the cup body for sealed fermentation.

[0019] The integrated coffee machine proposed in this technical solution uses a brewing device to drip water at a constant flow rate into the sealed fermenting coffee. The water drips onto the coffee grounds, extracting the coffee liquid, which then drips into the cup for sealed fermentation. The brewing head then guides the brewing device into a refrigerator to dispense the coffee.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0021] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0022] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0023] Figure 1 This is a schematic diagram of the brewing device according to an embodiment of the present invention.

[0024] Figure 2This is a schematic diagram of a sealed fermentation coffee cup according to an embodiment of the present invention.

[0025] Figure 3 This is an exploded view of the sealed fermentation coffee cup structure according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the integrated coffee machine structure according to an embodiment of the present invention.

[0027] Figure 5 This is an exploded view of the integrated coffee machine structure according to an embodiment of the present invention.

[0028] Figure 6 This is a schematic diagram of the integrated coffee machine structure according to an embodiment of the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0032] See Figure 1 , 4In embodiment 5, this utility model provides a brewing device, including a brewing tank 1. The bottom of the brewing tank 1 has a liquid outlet, and a constant flow rate mechanism is installed on the brewing tank 1. The constant flow rate mechanism controls the liquid in the brewing tank 1 to flow out of the liquid outlet at a constant rate. The brewing device utilizes the pressure difference to achieve a balance between the internal and external pressures of the brewing tank 1, thus achieving a constant flow rate.

[0033] Specifically, the brewing chamber 1 is enclosed, and the constant flow mechanism includes an air inlet channel constructed inside the brewing chamber 1. The input end of the air inlet channel is connected to the outside, and the output end extends to below the liquid surface inside the brewing chamber 1. The brewing device utilizes the pressure difference to allow outside air to enter the brewing chamber 1 through the air inlet channel, creating a pressure balance between the inside and outside of the brewing chamber 1, thus achieving a constant flow rate.

[0034] In some embodiments, the top of the brewing box 1 is equipped with a lid, the lid includes an upper cover 2 and a lower cover 3, the lower cover 3 is concave in the middle, and a first sealing ring 5 is sleeved on the outside of the lower cover 3, an air inlet pipe 4 is fixedly connected to the bottom of the lower cover 3, the top end of the air inlet pipe 4 communicates with the top of the lower cover 3, and a plurality of air inlet holes 16 are opened on the top edge of the lower cover 3, and the upper cover 2 covers the top of the lower cover 3;

[0035] When the lower cover 3 is installed on the brewing box 1, the lower cover 3 is interference-fitted to the inner wall of the brewing box 1 through the first sealing ring 5, and the bottom end of the air inlet pipe 4 extends below the liquid surface inside the brewing box 1. The lower cover 3 seals the brewing box 1, and the air inlet channel is formed by the air inlet hole 16, the space between the upper cover 2 and the lower cover 3, and the air inlet pipe 4.

[0036] See Figures 2 to 5 This utility model embodiment also provides a sealed fermentation coffee cup, including a cup body 6 that receives liquid from a brewing chamber, a filter cup 7 placed on the cup body 6, the filter cup 7 having an outwardly extending edge, the top of the cup body 6 supporting the edge of the filter cup 7, and the body of the filter cup 7 placed inside the cup body 6. When the filter cup 7 is placed on the cup body 6, it seals the cup body 6. Water drips down and soaks the coffee powder in the filter cup 7, extracting it to form coffee liquid, which is then dripped into the cup body 6 for sealed fermentation.

[0037] In some embodiments, a second sealing ring 8 is fitted onto the outer wall of the filter cup 7. When the filter cup 7 is placed on the cup body 6, the filter cup 7 is press-fitted with the inner wall of the cup body 6 through the second sealing ring 8. The filter cup 7 seals the cup body 6 through the second sealing ring 8, thereby enabling the coffee to ferment in a sealed manner within the cup body 6.

[0038] In some embodiments, a filter cover 9 is provided on the filter cup 7, and a third sealing ring 10 is fitted on the filter cover 9. When the filter cover 9 is on the filter cup 7, the filter cover 9 is press-fitted with the inner wall of the filter cup 7 through the third sealing ring 10. The filter cover 9 is used to seal the filter cup 7, and the filter cover 9 can be removed when water droplets are added.

[0039] See Figures 1 to 6 This utility model embodiment also provides an integrated coffee machine, including a refrigerator 11. A brewing device as described above is installed on the top of the refrigerator 11. A sealed fermentation coffee cup as described above is placed inside the refrigerator 11, and the sealed fermentation coffee cup receives the liquid from the brewing device. The refrigerator 11 has at least one channel connecting to the outside to facilitate the smooth dripping of water droplets. Water droplets are dripped into the sealed fermentation coffee cup at a constant flow rate through the brewing device. After the water droplets soak and extract the coffee powder, the coffee liquid is formed and finally drips into the cup body 6 for sealed fermentation. The brewing device is introduced into the refrigerator 11 to dispense the liquid using the brewing head 12.

[0040] In some embodiments, the brewing head 12 has a fluid channel and a threaded hole 14 connected to the fluid channel. The threaded hole 14 is located inside the refrigerator 11. A knob 15 is provided on the brewing head 12, one end of which is configured as a screw that engages with the threaded hole 14. The brewing head 12 is used to introduce the brewing device into the refrigerator 11 to dispense liquid, and the flow rate can be adjusted by rotating the knob 15 to change the distance the knob 15 is screwed into the fluid channel.

[0041] In some embodiments, a bracket 17 is fixedly connected to the top of the refrigerator 11. The bracket 17 cooperates with the brewing box 1, and an insulation layer is installed on the outside of the bracket 17. The bracket is used to position and place the brewing box 1, so that the connector 13 at the bottom of the brewing box 1 can be connected to the brewing head 12.

[0042] In some embodiments, a brewing head assembly is also included, which includes a brewing head 12 and a connector 13. The brewing head 12 is fixed to the top of the refrigerator 11 and extends through the top of the refrigerator 11. The connector 13 is connected to the liquid outlet at the bottom of the brewing box 1 and is used to connect with the top of the brewing head 12 to introduce the liquid in the brewing box 1 into the refrigerator 11 and out.

[0043] In some embodiments, a PTC cooling chip 18 is installed on the refrigerator 11. The PTC cooling chip 18 has a cooling surface and a heating surface. A heat-conducting mechanism is installed on both the cooling and heating surfaces of the PTC cooling chip 18. The heat-conducting mechanism of the cooling surface of the PTC cooling chip 18 is located inside the refrigerator 11, and the heat-conducting mechanism of the heating surface of the PTC cooling chip 18 is located outside the refrigerator 11. The heat-conducting mechanism includes a heat-conducting plate 19 and a fan 20, with the fan 20 blowing air through the heat-conducting plate 19. The heat-conducting mechanism located inside the refrigerator 11 creates air circulation within the refrigerator 11 to maintain a low temperature inside the refrigerator 11; the heat-conducting mechanism located outside the refrigerator 11 dissipates heat from the PTC cooling chip 18.

[0044] In this integrated coffee machine's ice drip coffee preparation process, an ice-water mixture is placed in the brewing chamber 1, and a container such as a sealed fermentation coffee cup is placed in the refrigerator 11 to receive the liquid from the brewing device. The insulation layer installed on the outside of the support 17 keeps the brewing chamber 1 warm. Water droplets from the brewing head 12 drip into the sealed fermentation coffee cup. Coffee powder is placed in the filter cup 7 within the sealed fermentation coffee cup. The water droplets are extracted in the filter cup 7 to form coffee liquid, which flows out into the cup body 6. Because the water droplets enter and exit the filter cup 7 at a uniform speed, the residence time of each droplet in the filter cup 7 is relatively similar, resulting in a consistent concentration and flavor of the extracted coffee liquid, thus ensuring the quality of the produced coffee.

[0045] The sealed fermentation coffee cup is placed in refrigerator 11. The low-temperature environment of refrigerator 11 allows the coffee liquid to ferment, thus producing cold-fermented drip coffee with a unique flavor. Simultaneously, the second sealing ring 8, the third sealing ring 10, and the filter cover 9 seal the cup body 6, ensuring sealed fermentation of the coffee liquid. Furthermore, the sealing of the cup body 6 by the second sealing ring 8, the third sealing ring 10, and the filter cover 9 reduces moisture loss during fermentation, helping to preserve the flavor of the produced coffee.

[0046] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A brewing device, comprising a brewing chamber (1), characterized in that, The bottom of the brewing box (1) is provided with a liquid outlet, and the brewing box (1) is provided with a constant flow rate mechanism, which controls the flow rate of the liquid in the brewing box (1) to flow out of the liquid outlet at a constant rate. The brewing box (1) is closed, and the constant flow mechanism includes an air inlet channel. The air inlet channel is constructed inside the brewing box (1). The input end of the air inlet channel is connected to the outside, and the output end of the air inlet channel extends to below the liquid surface inside the brewing box (1).

2. The brewing device according to claim 1, characterized in that, The brewing box (1) is equipped with a lid on top. The lid includes an upper lid (2) and a lower lid (3). The lower lid (3) is recessed in the middle and a first sealing ring (5) is fitted on the outside of the lower lid (3). An air inlet pipe (4) is fixedly connected to the bottom of the lower lid (3). The top of the air inlet pipe (4) is connected to the top of the lower lid (3). Several air inlet holes (16) are opened on the top edge of the lower lid (3). The upper lid (2) covers the top of the lower lid (3). When the lower cover (3) is installed on the brewing box (1), the lower cover (3) is press-fitted to the inner wall of the brewing box (1) through the first sealing ring (5), and the bottom end of the air inlet pipe (4) extends below the liquid surface inside the brewing box (1).

3. A sealed fermentation coffee cup, comprising a cup body (6) for receiving liquid from a brewing chamber, characterized in that, A filter cup (7) is placed on the cup body (6). The filter cup (7) has an outwardly extending edge. The top of the cup body (6) supports the edge of the filter cup (7), and the body of the filter cup (7) is placed inside the cup body (6). When the filter cup (7) is placed on the cup body (6), the filter cup (7) closes the cup body (6).

4. A sealed fermentation coffee cup according to claim 3, characterized in that, The filter cup (7) is fitted with a second sealing ring (8) on its outer wall. When the filter cup (7) is placed on the cup body (6), the filter cup (7) is press-fitted with the inner wall of the cup body (6) through the second sealing ring (8).

5. A sealed fermentation coffee cup according to claim 3, characterized in that, The filter cup (7) is provided with a filter cover (9), and a third sealing ring (10) is fitted on the filter cover (9). When the filter cover (9) is on the filter cup (7), the filter cover (9) is press-fitted with the inner wall of the filter cup (7) through the third sealing ring (10).

6. An all-in-one coffee machine, including a refrigerator (11), characterized in that, The refrigerator (11) is equipped with a brewing device as described in any one of claims 1 to 2 on its top; and a sealed fermented coffee cup as described in any one of claims 3 to 5 is placed inside the refrigerator (11).

7. The all-in-one coffee machine according to claim 6, characterized in that, The brewing head (12) has a fluid channel and a threaded hole (14) connected to the fluid channel. The threaded hole (14) is located inside the refrigerator (11). The brewing head (12) has a knob (15) with one end configured as a screw that engages with the threaded hole (14).

8. The all-in-one coffee machine according to claim 6, characterized in that, The top of the refrigerator (11) is fixedly connected to a bracket (17), which cooperates with the brewing box (1), and the outside of the bracket (17) is equipped with an insulation layer.

9. An all-in-one coffee machine according to claim 6, characterized in that, It also includes a brewing head assembly, which includes a brewing head (12) and a connector (13), wherein the brewing head (12) is fixed to the top of the refrigerator (11) and the brewing head (12) extends through the top of the refrigerator (11); When the brewing device is installed on the top of the refrigerator (11), the connector (13) is connected to the liquid outlet at the bottom of the brewing box (1), and the connector (13) is used to connect to the top of the brewing head (12) to introduce the liquid in the brewing box (1) into the refrigerator (11) and out.

10. An all-in-one coffee machine according to claim 6, characterized in that, The refrigerator (11) is equipped with a PTC cooling chip (18), which has a cooling surface and a heating surface. A heat conduction mechanism is installed on both the cooling surface and the heating surface of the PTC cooling chip (18). The heat conduction mechanism of the cooling surface of the PTC cooling chip (18) is located in the inner cavity of the refrigerator (11), and the heat conduction mechanism of the heating surface of the PTC cooling chip (18) is located outside the refrigerator (11). The heat conduction mechanism includes a heat conduction plate (19) and a fan (20). The fan (20) blows air through the heat conduction plate (19).

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