Air-blowing cold brew coffee maker and working method thereof

Abstract

The present invention relates to the technical field of small household appliances, and more specifically, to an air-blown cold-brew coffee maker, which includes a brewing chamber for accommodating coffee powder and water, the brewing chamber having a brewing chamber opening, and also includes an air supply device for supplying air to the brewing chamber, and an air guide component for guiding the gas from the air supply device into the brewing chamber, the air guide component is respectively connected to the air supply device and the brewing chamber, the air supply device is connected to the brewing chamber through the air guide component, so that the air supply device can supply air to the mixed liquid in the brewing chamber. The present invention also discloses a working method of an air-blown cold-brew coffee maker. The present invention has a simple structure, is easy to use, has a low cost, is fully functional, has a fast cold-brew speed, and has a good cold-brew effect.

Description

Technical Field

[0001] The present invention relates to the technical field of small household appliances, and more specifically, to an air-blowing cold-brew coffee maker and a working method thereof. Background Art

[0002] Cold brew coffee is usually extracted at low temperature without being heated during the extraction process. Because cold brew coffee requires low temperature and a long extraction time, the price of cold brew coffee sold on the market is generally high. Low temperature extraction also gives cold brew coffee a unique flavor. The same beans can produce completely different flavors with different extraction methods. In fact, because low temperature extraction extracts less coffee oil, it can be kept for a longer time.

[0003] Cold brew coffee is usually made by soaking coffee powder in water at room temperature or lower temperature (for example, around 20-22°C) and filtering it. However, due to the low water temperature, the substances in the coffee powder are difficult to extract, so the water and coffee powder must be in contact for a long time. It may take 12-48 hours to make cold brew coffee with a good taste, which is very time-consuming. Therefore, how to shorten the extraction time and make the substances in the coffee powder dissolve quickly and fully in the water, so as to make cold brew coffee efficiently and quickly, is an urgent problem to be solved. Summary of the invention

[0004] The present invention is to overcome at least one of the defects of the prior art and provide an air-blowing cold brew coffee maker and a working method thereof. The present invention has a simple structure, is easy to use, has low cost, is fully functional, has a good cold brew effect, and can efficiently and quickly make cold brew coffee.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: an air-blown cold-brew coffee pot, the air-blown cold-brew coffee pot comprising: a brewing chamber for accommodating coffee powder and water, the brewing chamber having a brewing chamber opening, and also comprising an air supply device for supplying air to the brewing chamber, and an air guide component for guiding the gas from the air supply device into the brewing chamber, the air guide component being connected to the air supply device and the brewing chamber respectively, the air supply device being connected to the brewing chamber via the air guide component, so that the air supply device can supply air to the mixed liquid in the brewing chamber.

[0006] The above technical solution can accelerate the dissolution of substances in coffee powder in water during the process of making cold brew coffee, and achieve rapid and sufficient extraction. When coffee powder is put into the brewing chamber and the water supply device supplies water to the brewing chamber, the gas supply device supplies gas to the liquid formed by the mixture of water and coffee powder. Since the gas flows in the liquid, it drives the liquid to flow and roll, so that the coffee powder and water are fully stirred, and the dissolution of substances in the coffee powder in water is accelerated, thereby achieving the effect of rapid and sufficient extraction.

[0007] In one embodiment, in order to prevent the liquid in the brewing chamber from flowing back to the gas supply device, contaminating the gas supply device or even damaging it, the gas guide component is set to be at least partially higher than the liquid level in the brewing chamber. Specifically, the gas guide component is set to be at least partially higher than or equal to the height of the brewing chamber opening.

[0008] In one embodiment, the air-blown cold brew coffee maker further comprises a coffee maker body, the brewing chamber and the air supply device are mounted on the coffee maker body, the brewing chamber opening is arranged at the top of the brewing chamber, and the air supply device is connected to the brewing chamber via an air guide component, and is used to supply air to the brewing chamber, so that when the brewing chamber contains water and coffee powder, air is supplied to a liquid formed by a mixture of water and coffee powder. When in use, water and coffee powder are supplied into the brewing chamber through the brewing chamber opening, and the air supply device is started, so that the air supply device can supply air to the liquid formed by a mixture of water and coffee powder.

[0009] Preferably, the coffee pot body is further provided with a water supply device, which is connected to the brewing chamber and is used to supply water to the brewing chamber. Specifically, the water supply device can be a water tank arranged on the coffee pot body, and the water supply device includes a water tank located above the brewing chamber, and a water outlet is arranged at the bottom of the water tank. The water outlet is located at a position corresponding to the opening of the brewing chamber and the water outlet, and the water tank supplies water to the brewing chamber through the water outlet.

[0010] In one embodiment, the air-blown cold brew coffee maker further comprises an upper cover capable of covering the opening of the brewing chamber, the brewing chamber opening being arranged at the top of the brewing chamber, the upper cover being provided with the air supply device, the air supply device being connected to the brewing chamber via an air guide component, so that the air supply device can supply air to the liquid in the brewing chamber. When the upper cover covers the opening of the brewing chamber, the air supply device located on the upper cover can prevent the liquid from flowing back through the air guide component to the air supply device because it is located higher than the brewing chamber.

[0011] In one embodiment, the air guide component includes a first air guide tube, the first air guide tube having a first air guide tube first port and a first air guide tube second port, the first air guide tube first port is connected to the air supply device, and the second air guide tube second port is inserted into the brewing chamber to communicate with the brewing chamber, so that the air supply device can supply air to the liquid in the brewing chamber through the first air guide tube.

[0012] In one embodiment, the air guide component includes a first air guide tube and a second air guide tube, the first air guide tube has a first port of the first air guide tube and a second port of the first air guide tube, the second air guide tube has a first port of the second air guide tube and a second port of the second air guide tube, the air supply device is connected to the first port of the first air guide tube, the second port of the first air guide tube is connected to the first port of the second air guide tube, and the second port of the second air guide tube is inserted into the brewing chamber and communicated with the brewing chamber, so that the air supply device can supply air to the liquid in the brewing chamber through the first air guide tube and the second air guide tube. Preferably, the first air guide tube and the second air guide tube are detachably connected. Since the second air guide tube is deeply in the brewing chamber and contacts the coffee liquid, it will be stained with the coffee liquid and needs to be cleaned frequently. The first air guide tube is set to be detachably connected to the second air guide tube, so that the second air guide tube can be separated from the first air guide tube for separate cleaning.

[0013] In one embodiment, the brewing chamber is provided with a breathable mesh cover, and the breathable mesh cover is used to prevent the coffee powder from escaping. The breathable mesh cover is detachably mounted at a position corresponding to the opening of the brewing chamber, and the air guide component is configured to be able to penetrate the breathable mesh cover, so that at least a portion of the air guide component can be inserted into the brewing chamber. The breathable mesh cover is useful for suppressing bubbles or coffee powder in the brewing chamber so that they will not overflow, and fully dissolving the floating coffee powder in water. When the brewing chamber is supplied with air, part of the coffee powder may float toward the brewing chamber opening with the gas, which is blocked by the breathable mesh cover and retained in the breathable mesh cover. Therefore, the breathable mesh cover needs to be cleaned frequently. Therefore, the breathable mesh cover is preferably detachably mounted on the brewing chamber to facilitate its removal for cleaning.

[0014] In one embodiment, the air-permeable mesh cover is provided with a mesh cover opening, and a small cover is provided on the air-permeable mesh cover and is rotatably connected thereto, so that the mesh cover opening can be opened or closed by rotating the small cover. Providing the mesh cover opening and the small cover on the air-permeable mesh cover can facilitate the user to place coffee powder through the mesh cover opening. In this way, when it is necessary to place coffee powder, it is only necessary to rotate the small cover to open the mesh cover opening, and the coffee powder can be placed in the brewing chamber through the mesh cover opening, without removing the air-permeable mesh cover as a whole from the brewing chamber. When it is no longer necessary to put in coffee powder, the small cover is rotated to close the air-permeable mesh cover opening to prevent the coffee powder from escaping from the brewing chamber. Specifically, the air-permeable mesh cover is a circular mesh cover, and the air-permeable mesh cover includes a cover frame and a screen. The small cover is semicircular. The cover frame includes a first semicircular portion and a second semicircular portion, the first semicircular portion is provided with a screen, the second semicircular portion is hollowed out to form the air-permeable mesh cover opening, and the second semicircular portion is covered with a semicircular small cover, and the semicircular small cover is a flip cover rotatably connected to the cover frame. Specifically, the mesh cover may be a mesh structure with air holes.

[0015] The air-permeable mesh cover is provided with the second air duct, which includes a cavity and a tube portion connected to the cavity. The cavity is provided in the air-permeable mesh cover, and the cavity is connected to the second end of the first air duct. The air-permeable mesh cover is provided with the tube portion extending downward from the brewing cavity cover, so that when the air-permeable mesh cover covers the brewing cavity opening, the tube portion extends into the brewing cavity.

[0016] Specifically, the second air duct passes through the brewing chamber opening, and the second port of the second air duct is located in the brewing chamber at a position lower than or equal to the middle of the brewing chamber, so that the second port of the second air duct is inserted into the liquid in the brewing chamber.

[0017] In one embodiment, a discharge port for discharging coffee liquid is provided at the bottom of the brewing chamber, and the brewing chamber is provided with a first filter, which is configured so that the coffee liquid can be filtered by the first filter before flowing out of the brewing chamber through the discharge port; the discharge port is provided with a discharge switch, and the discharge switch is used to open or close the discharge port. Although, in a simpler embodiment, it is not necessary to provide a discharge port for coffee liquid, and the coffee liquid can be poured out from the brewing chamber opening. However, the provision of a discharge port and a discharge switch at the bottom of the brewing chamber can more conveniently discharge the coffee liquid from the discharge port. The user only needs to turn on the discharge switch to discharge the coffee liquid from the discharge port, which is more convenient to use. Specifically, the above-mentioned first filter can be a first filter net. The provision of the first filter in the brewing chamber can filter the coffee liquid so as to remove impurities such as coffee grounds in the coffee liquid. It can be understood that, in a simpler embodiment, it is not necessary to provide a filter in the air-blown cold brew coffee pot, because when making cold brew coffee, the way of filtering varies from person to person. Users may purchase disposable filter paper for filtering, or the store may give away filter paper when buying coffee beans or coffee powder, or the filter cup purchased by the user may also come with filter paper. Some users may think that setting up filters in the coffee pot will increase the work of cleaning, and they do not need to clean the filter paper after using the disposable filter paper, so they may bring their own filter paper for filtering.

[0018] Preferably, the first filter is detachably mounted in the brewing chamber, and divides the brewing chamber into a dissolving chamber located at the upper part of the brewing chamber and a filtering chamber located at the lower part of the brewing chamber, and a second filter is further provided between the first filter and the discharge port. The detachable placement of the first filter in the brewing chamber is conducive to removing the first filter for separate cleaning. The second filter can filter the coffee liquid that has been filtered by the first filter again to further remove impurities in the coffee liquid. The second filter is preferably detachably mounted between the first filter and the discharge port. In addition, when the user wishes to prepare other filters, such as when the user prepares disposable filter paper, the first filter can be removed and then the air-blown cold brew coffee pot can be used. After using the air-blown cold brew coffee pot to make cooled coffee, the user can use the filter paper he / she prepared to filter.

[0019] Preferably, a coffee cup for holding coffee is placed below the filter chamber, and a third filter for filtering coffee is provided on the coffee cup, and the third filter is detachably connected to the coffee cup. Compared with directly enjoying the coffee discharged from the discharge port, filtering for the third time with the third filter can further remove impurities in the coffee liquid and further improve the taste of the coffee. The third filter is configured to be detachable from the coffee cup for cleaning.

[0020] Preferably, the coffee maker may further include a driving device for driving the discharge switch, and the driving device is disposed on the coffee maker body. The driving device may include a driving component and a motor connected to the driving component, or the driving device may include a driving component and a solenoid valve connected to the driving component. Specifically, the driving component may be a driving rod detachably connected to or fixedly connected to the discharge switch.

[0021] A working method using the above-mentioned air-blowing cold brew coffee maker comprises the following steps:

[0022] S1: putting coffee powder into a brewing chamber, supplying water to the brewing chamber so that the water and the coffee powder are mixed;

[0023] S2: The gas supply device supplies gas to the liquid formed by the mixture of water and coffee powder in the brewing chamber through the gas guide component, so that the gas flows and stirs the coffee powder so that the coffee powder rolls and dissolves in the liquid;

[0024] S3: The gas supply device stops working, the coffee is filtered in the brewing chamber, and the coffee is discharged from the brewing chamber after filtering.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The technical solution of the present invention can realize the rapid production of cold brew coffee. When coffee powder is put into the brewing chamber and the water supply device supplies water to the brewing chamber, the gas supply device supplies gas to the liquid formed by the mixture of water and coffee powder. Since the gas flows in the liquid, it drives the liquid to flow and roll, so that the coffee powder and water are fully stirred, and the dissolution of the substances in the coffee powder in the water is accelerated, thereby achieving the effect of rapid and full extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic cross-sectional structure diagram of the coffee maker according to the first embodiment of the present invention.

[0028] Figure 2 Schematic diagram of a partial explosion of the coffee maker according to Example 1 of the present invention.

[0029] Figure 3 It is a schematic diagram of the explosion of the brewing chamber and the air-permeable mesh cover of the coffee maker according to the first embodiment of the present invention.

[0030] Figure 4 It is a schematic diagram of the explosion of the air-permeable mesh cover of the coffee pot according to Example 1 of the present invention.

[0031] Figure 5 1 is a schematic diagram of the installation state of the brewing chamber of the coffee pot according to the first embodiment of the present invention installed on the coffee pot body.

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the brewing chamber of the coffee maker according to the first embodiment of the present invention.

[0033] Figure 7 1 is a schematic cross-sectional view of the coffee maker according to Embodiment 1 of the present invention, which shows the process of gas supply by the gas supply device.

[0034] Figure 8 FIG. 1 is a schematic diagram of a coffee maker according to an embodiment of the present invention when discharging coffee liquid.

[0035] Fig. 9 2 is a schematic cross-sectional view of the coffee maker according to Embodiment 2 of the present invention, which shows the process of adding water into the brewing chamber.

[0036] Fig.10 1 is a schematic cross-sectional view of the coffee maker according to Embodiment 2 of the present invention, which shows the process of discharging coffee liquid from the brewing chamber.

[0037] Fig.11 2 is a schematic cross-sectional view of the coffee maker according to Embodiment 3 of the present invention, which shows the process of adding water into the brewing chamber.

[0038] Fig.12 1 is a schematic cross-sectional view of the coffee maker according to Embodiment 4 of the present invention, which shows the process of gas supply by the gas supply device. DETAILED DESCRIPTION

[0039] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0040] Example 1

[0041] like Figures 1 to 8 As shown, an air-blown cold-brew coffee pot comprises: a brewing chamber 6 for containing coffee powder and water, the brewing chamber 6 having a brewing chamber opening 601, and also comprising an air supply device for supplying air to the brewing chamber, and an air guide component for guiding the gas from the air supply device into the brewing chamber 6, the air guide component being connected to the air supply device and the brewing chamber 6 respectively, the air supply device being connected to the brewing chamber 6 through the air guide component, so that the air supply device 6 can supply air to the liquid mixed in the brewing chamber 6. In this embodiment, the air-blown cold-brew coffee pot also comprises a coffee pot body, the brewing chamber and the air supply device are mounted on the body, the brewing chamber opening 601 is provided at the top of the brewing chamber 6, the air supply device is connected to the brewing chamber 6 through the air guide component, and is used to supply air to the brewing chamber 6, so that when the brewing chamber 6 contains water and coffee powder, air is supplied to the liquid mixed with the water and coffee powder.

[0042] In this embodiment, a water supply device, a brewing chamber 6, and an air supply device are also installed on the main body of the coffee pot. The water supply device is in fluid communication with the brewing chamber 6 and is used to supply water to the brewing chamber 6. Specifically, the main body of the coffee pot is a base 2 in this embodiment. Specifically, the water supply device in this embodiment includes a water tank 3 fixed above the base, and the air supply device is an air pump 014. A water outlet 303 is provided at the bottom of the water tank 3. A cold water valve 011 is provided at the water outlet 303 to close or open the water outlet 303. A slide member 301 and a slide 302 are provided at the bottom. A brewing chamber 6 is provided below the water tank 3. The upper part of the brewing chamber 6 is slidably connected to the bottom of the water tank 3 through the slide member 301.

[0043] A first filter 003 is provided in the brewing chamber, and the first filter 003 is a first filter net 003. The first filter 003 divides the brewing chamber 6 into a dissolving chamber 6001 located at the upper part of the brewing chamber 6 and a filtering chamber 6002 located at the lower part of the brewing chamber 6. A second filter 009 is provided between the first filter 003 and the discharge port 611 at the bottom of the brewing chamber 6. A discharge switch 607 is provided at the discharge port 611, and the discharge switch 607 is used to open or close the discharge port 611. The discharge switch 607 is a rotating seesaw, and the upper part of the rotating seesaw is elastically arranged outside the brewing chamber 6 by a spring, and the lower part of the rotating seesaw is located below the discharge port 611 to block the discharge port 611. The driving part 112 of the driving rod 11 is arranged at a position corresponding to the upper part of the rotating seesaw. When it is necessary to open the discharge switch 607, the driving device is started, so that the driving part 112 abuts against the upper part of the rotating seesaw, and the lower part of the rotating seesaw is away from the discharge port 611, so that the discharge port 611 is opened. In this embodiment, the first filter element 003 and the second filter element 009 are respectively the first filter net 003 and the second filter net 009. For the convenience of cleaning, the first filter element 003 and the second filter element 009 are respectively detachably installed in the brewing chamber 6. The air guide component includes a first air guide tube 0121 and a second air guide tube 0131, the first air guide tube 0121 has a first air guide tube first port 0122 and a first air guide tube second port 0123, and the second air guide tube has a second air guide tube first port 0132 and a second air guide tube second port 0133. A brewing chamber opening 601 is provided at the top of the brewing chamber 6, the first air guide tube first port 0122 is communicated with the air supply device 014, the first air guide tube second port 0123 is detachably connected to the second air guide tube first port 0132, and the second air guide tube second port 0133 is inserted into the brewing chamber 6 through the brewing chamber opening 601. The brewing chamber opening 601 is provided with a breathable mesh cover 002 that can cover the brewing chamber opening 601. Specifically, the breathable mesh cover 002 is a circular mesh cover, which includes a cover frame 0020 and a screen (not shown). In order to facilitate the placement of coffee powder into the brewing chamber 6, a semicircular small cover 001 is also provided on the breathable mesh cover 002. The cover frame 0020 includes a first semicircular portion 0021 and a second semicircular portion 0022, wherein the first semicircular portion is provided with a screen, and the second semicircular portion 0022 is hollowed out to form a mesh cover opening 0023, and the second semicircular portion 0022 is covered with a semicircular small cover 001, which is a flip cover rotatably connected to the cover frame. In this embodiment, the small cover 001 is a mesh structure. Therefore, when coffee powder needs to be put into the brewing chamber, it is not necessary to remove the brewing chamber cover 002. As long as the small cover 001 is flipped upward, the coffee powder can be put into the mesh cover opening 0023 on the second semicircular part 0022. The mesh cover opening 0023 can be opened or closed by rotating the small cover 001.

[0044] The air permeable mesh cover 002 is provided with the second air guide tube 0131, which includes a cavity 0025 and a tube portion 0024 communicating with the cavity 0025. The air permeable mesh cover 002 is provided with the cavity 0025, and the side of the brewing chamber cover 002 forms an air inlet joint 007 communicating with the cavity 0025, and the air inlet joint 007 can be engaged with the second port 0123 of the first air guide tube. The middle part of the air permeable mesh cover 002 is provided with a tube portion 0024 extending downward, so that when the air permeable mesh cover 002 covers the brewing chamber opening 601, the tube portion 0024 extends into the brewing chamber 6. The second air guide tube 0131 passes through the brewing chamber opening 601, and the second port 0133 of the second air guide tube is arranged in the brewing chamber 6 at a position lower than the middle part of the brewing chamber 6.

[0045] The second air guide tube 0131 passes through the air permeable mesh cover 002, passes through the dissolution chamber 6001 and is connected to the first filter element 003, and communicates with the filter chamber 6002 through the first filter element 003. Specifically, a first through hole 0030 is provided in the middle of the first filter element 003, and the second port 0133 of the second air guide tube is communicated with the first through hole 0030.

[0046] The air permeable mesh cover 002 is provided with a cold water driving unit 005, a second air guide pipe cover 006, and an air inlet joint 007. The air inlet joint 007 is provided at the first port 0132 of the second air guide pipe. An air outlet joint 015 is provided at the second port of the first air guide pipe. The air inlet joint 007 is connected to the air outlet joint 015. At least one of the air inlet joint 007 and the air outlet joint 015 is made of a flexible material.

[0047] A coffee cup 8 for holding coffee is also placed below the filter chamber 6002. The coffee cup 8 is provided with a third filter 016 for filtering coffee, and the third filter 016 is detachably connected to the coffee cup 8. The third filter 016 is a third filter net 016 in this embodiment. The small cover 001 is turned upward to open the opening of the air-permeable mesh cover 002, and coffee powder can be put into the brewing chamber. The brewing chamber 6 is slidably connected to the bottom of the water tank 3. When the brewing chamber 6 is connected to the bottom of the water tank 3, the cold water drive unit 005 on the air-permeable mesh cover 002 starts the water outlet switch 402 to turn on, so that the water tank 3 supplies water to the brewing chamber 6, and the water enters between the air-permeable mesh cover 002 and the first filter 003. Start the air pump 014, and the gas flows along the air pipe 0121, from the air pump 014 through the first air guide pipe 0121 and the second air guide pipe 0131 in sequence into the dissolution chamber 6001. When the gas is at the lower part of the first filter 003, it passes through the mesh on the first filter 003 and enters the dissolution chamber 6001. The gas flows from bottom to top to stir the coffee powder to roll and dissolve in the liquid. The gas supply time is set to 5 minutes. After the gas supply is completed, the solenoid valve 17 works to drive the driving rod 11 to move upward, and the driving unit 112 drives the discharge switch 607 to open and discharge the coffee liquid. The first filter 5 filters for the first time, and then the second filter 009 filters it. The coffee that has been filtered twice is discharged from the discharge port, flows through the third filter 016, and is filtered for the third time, and finally the cold-brewed coffee is obtained.

[0048] In this embodiment, the first filter 003, the second filter 009, and the air-permeable mesh cover 002 are all detachably mounted on the brewing chamber, so when in use, the user can install one or more of the first filter 003, the second filter 009, and the air-permeable mesh cover 002 on the brewing chamber as needed, or install and remove one or more of the first filter 003, the second filter 009, and the air-permeable mesh cover 002 from the brewing chamber. Alternatively, the first filter 003, the second filter 009, and the air-permeable mesh cover 002 can be of multiple types, and the user can replace different first filters 003, the second filters 009, and the air-permeable mesh cover 002 as needed.

[0049] Example 2

[0050] The structure of this embodiment is relatively simple. The structure of the brewing chamber and the gas supply device is similar to that of embodiment 1. Fig. 9 and Fig.10 (For the parts that are the same as Example 1, please refer to Figure 1-8 ). In this embodiment, a cold brew coffee maker includes: a brewing chamber for containing coffee powder and water, the brewing chamber 6 has a brewing chamber opening 601, and also includes an air supply device for supplying air to the brewing chamber,

[0051] An air guide component is used to guide the gas from the air supply device into the brewing chamber 6, the air guide component is connected to the air supply device and the brewing chamber 6 respectively, and the air supply device is connected to the brewing chamber 6 through the air guide component, so that the air supply device 6 can supply air to the mixed liquid in the brewing chamber.

[0052] The air-blown cold brew coffee maker further comprises an upper cover 1 capable of covering the brewing chamber opening 601. The brewing chamber opening 1 is disposed at the top of the brewing chamber 6. The upper cover 1 is provided with the air supply device, which is connected to the brewing chamber 6 via an air guide component, so that the air supply device can supply air to the liquid in the brewing chamber 6. Specifically, the air supply device is an air pump 014 disposed in the upper cover 1. In this embodiment, the upper cover 1 is detachably connected to the brewing chamber opening. When the upper cover 1 covers the brewing chamber opening,

[0053] The air guide component includes a first air guide tube 0121 and a second air guide tube 0131, the first air guide tube 0121 has a first air guide tube first port 0122 and a first air guide tube second port 0123, the second air guide tube has a second air guide tube first port 0132 and a second air guide tube second port 0133, the air pump 014 is connected to the first air guide tube first port 0122, the first air guide tube second port 0123 is connected to the second air guide tube first port 0132, the second air guide tube second port 0133 is inserted into the brewing chamber 6 and communicates with the brewing chamber 6, so that the air supply device can supply air to the liquid in the brewing chamber 6 through the first air guide tube 0121 and the second air guide tube 0131. Specifically, the first air guide tube is arranged on the upper cover 1, the first air guide tube first port 0122 is located in the upper cover 1 and connected to the air pump 014, and the first air guide tube 0121 passes through the upper cover 1 downward so that the first air guide tube second port 0123 is located below the upper cover 1.

[0054] A first filter element 003 is provided in the brewing chamber, and the first filter element 003 is a first filter net 003. The first filter element 003 divides the brewing chamber 6 into a dissolving chamber 6001 located at the upper part of the brewing chamber 6 and a filtering chamber 6002 located at the lower part of the brewing chamber 6. A second filter element 009 is provided between the first filter element 003 and the discharge port 611 at the bottom of the brewing chamber 6. A discharge switch 607 is provided at the discharge port 611, and the discharge switch 607 is used to open or close the discharge port 607. Specifically, a first through hole 0030 is provided in the middle of the first filter element 003, and the second port 0133 of the second air duct is connected to the first through hole 0030. The second air duct is connected to the filtering chamber 6002 through the first through hole 0030 of the first filter element 003. In this embodiment, a breathable mesh cover 002 is provided at the opening 601 of the brewing chamber. In order to facilitate the placement of coffee powder into the brewing chamber 6, a semicircular small cover 001 is provided on the air permeable mesh cover 002, and the semicircular small cover 001 is a flip cover rotatably connected to the cover frame. The structure of the air permeable mesh cover 002 is substantially the same as that in Example 1, except that, in this embodiment, the air permeable mesh cover 002 is not provided with a cavity 0025, and the second air guide 0131 is formed by the tube portion 0024 of the air permeable mesh cover 002, the tube portion 0024 forms a second air guide first port 0132 at the center of the air permeable mesh cover 002, and the lower end of the tube portion 0024 forms a second air guide second port 0133.

[0055] A coffee cup 8 for holding coffee liquid is also provided below the filter chamber 6002. When in use, the brewing chamber can be placed on the coffee cup 8. The discharge switch 607 is a water valve elastically arranged at the discharge port 611. The water valve is provided with a first driving rod 173 extending longitudinally, the first driving rod 173 passes through the first through hole 0030 and is inserted into the second air duct 0131 and extends along the second air duct 0131, and the upper cover 1 is provided with a second driving rod 174 extending longitudinally, and the second driving rod 174 passes through the upper cover 1. The upper end of the second driving rod 174 passes through the upper cover 1 and is located above the upper cover 1, and a pressing component 175 is provided at the upper end of the second driving rod 174. The lower end of the second driving rod 174 passes through the upper cover 1 and is located below the upper cover 1. When the upper cover 1 covers the brewing chamber opening 601, the lower end of the second driving rod 174 engages with the lower end of the first driving rod 173. When the discharge port 611 needs to be opened, the user only needs to press the pressing member 175 to move the first driving rod 173 together with the second driving rod 174 and the water valve downward, so that the discharge port 611 is opened.

[0056] Example 3

[0057] like Fig.11As shown, this embodiment is basically the same as the embodiment 2, except that a discharge switch 607 for driving the electromagnetic valve 17 is provided in the upper cover 1, and the discharge switch 607 is connected to the electromagnetic valve 17 through the first drive rod 173 and the second drive rod 174. Specifically, the upper end of the second drive rod 174 is located in the upper cover 1 and connected to the electromagnetic valve 17, and the lower end 174 of the second drive rod passes through the upper cover 1 and is located below the upper cover 1, and is detachably combined with the upper end of the first drive rod 173. The structures of the first drive rod 173 and the discharge switch 607 are the same as those in the embodiment 2.

[0058] Example 4

[0059] like Fig.12 As shown, this embodiment is basically the same as the embodiment 3, except that the wall of the second air duct is provided with an air outlet hole 0134, and the air outlet hole 0134 is located between the air-permeable mesh cover 002 and the first filter element 003, so that part of the gas can enter the dissolving chamber through the air outlet hole 0134; at the same time, since the first filter element 003 is the first filter net 003, the gas can also be discharged to the brewing chamber 6 through the mesh of the first filter net 003. When the air pump is working, the gas enters the filter chamber 6002 through the second air duct to generate pressure to press at least part of the water in the filter chamber 6002 out of the filter chamber 6002, and the gas is pumped into the brewing chamber 6 to cause the coffee powder to roll and dissolve with the water. Therefore, in this embodiment, the gas enters through the air outlet hole 0134 or the mesh of the first filter net. In other embodiments, the air outlet hole 0134 can be on the first filter element 003.

Claims

1. An air-blown cold brew coffee maker, comprising: A brewing chamber for containing coffee powder and water, wherein the brewing chamber has a brewing chamber opening, and is characterized in that it also includes: an air supply device for supplying air to the brewing chamber, and An air guide component for guiding the gas from the air supply device into the brewing chamber, the air guide component being connected to the air supply device and the brewing chamber respectively, the air supply device being connected to the brewing chamber via the air guide component, so that the air supply device can supply air to the mixed liquid in the brewing chamber; The air-blown cold brew coffee maker further comprises a coffee maker body, the brewing chamber and the air supply device are mounted on the coffee maker body, the brewing chamber opening is arranged at the top of the brewing chamber, when the brewing chamber contains water and coffee powder, the air supply device can supply air to a liquid formed by a mixture of water and coffee powder so that the gas can flow in the liquid to drive the mixed liquid to flow, thereby accelerating the extraction speed of substances in the coffee powder in the water; The air guide component includes a first air guide tube, the first air guide tube has a first air guide tube first port and a first air guide tube second port, the first air guide tube first port is connected to the air supply device, the first air guide tube second port is inserted into the brewing chamber to communicate with the brewing chamber, so that the air supply device can supply air to the liquid in the brewing chamber through the first air guide tube; or The air guide component includes a first air guide tube and a second air guide tube, the first air guide tube has a first air guide tube first port and a first air guide tube second port, the second air guide tube has a second air guide tube first port and a second air guide tube second port, the air supply device is connected to the first port of the first air guide tube, the second port of the first air guide tube is connected to the first port of the second air guide tube, and the second port of the second air guide tube is inserted into the brewing chamber and communicated with the brewing chamber, so that the air supply device can supply air to the liquid in the brewing chamber through the first air guide tube and the second air guide tube.

2. The air-blown cold brew coffee maker according to claim 1, characterized in that: The air-blown cold brew coffee maker also includes an upper cover capable of covering the opening of the brewing chamber, wherein the opening of the brewing chamber is disposed at the top of the brewing chamber, and the upper cover is provided with the air supply device, which is connected to the brewing chamber via an air guide component, so that the air supply device can supply air to the liquid in the brewing chamber.

3. The air-blown cold brew coffee maker according to claim 1, characterized in that: The brewing chamber is provided with an air-permeable mesh cover, which is used to prevent coffee powder from escaping. The air-permeable mesh cover is detachably installed at a position corresponding to the opening of the brewing chamber, and the air-guiding component is configured to be able to penetrate the air-permeable mesh cover, so that at least a portion of the air-guiding component can be inserted into the brewing chamber.

4. The air-blown cold brew coffee maker according to claim 3, characterized in that: The air-permeable mesh cover is provided with a mesh cover opening, and a small cover is provided on the air-permeable mesh cover and is rotatably connected with the mesh cover, so that the mesh cover opening can be opened or closed by rotating the small cover.

5. The air-blown cold brew coffee maker according to any one of claims 1 to 4, characterized in that: A discharge port for discharging coffee liquid is provided at the bottom of the brewing chamber, and the brewing chamber is provided with a first filter element, which is configured to allow the coffee liquid to be filtered by the first filter element before flowing out of the brewing chamber through the discharge port; the discharge port is provided with a discharge switch, which is used to open or close the discharge port.

6. The air-blown cold brew coffee maker according to claim 5, characterized in that: The first filter is detachably installed in the brewing chamber and divides the brewing chamber into a dissolving chamber located at the upper part of the brewing chamber and a filtering chamber located at the lower part of the brewing chamber. A second filter is also arranged between the first filter and the discharge port.

7. A working method for the air-blown cold brew coffee maker according to any one of claims 5 to 6, characterized in that: The following steps are involved: S1: putting coffee powder into a brewing chamber, supplying water to the brewing chamber so that the water and the coffee powder are mixed; S2: The gas supply device supplies gas to the liquid formed by the mixture of water and coffee powder in the brewing chamber through the gas guide component, so that the gas flows and stirs the coffee powder so that the coffee powder rolls and dissolves in the liquid; S3: The gas supply device stops working, the coffee is filtered in the brewing chamber, and the coffee is discharged from the brewing chamber after filtering.

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