Coffee maker and control method thereof

Abstract

The application discloses a coffee machine and a control method thereof. The control method comprises the following steps: receiving a starting instruction, controlling a moving mechanism to drive a filtering assembly to move to a powder receiving position, driving a powder supply assembly to deliver coffee powder to a powder falling opening, so that the coffee powder falls into a feeding opening from the powder falling opening, controlling the moving mechanism to drive the filtering assembly to move to a water receiving position, and driving a water injection assembly to deliver brewing water to a water injection opening, so that the brewing water falls into the feeding opening from the water injection opening. The application aims to solve the technical problem of how to prevent water vapor from entering the powder falling opening.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more specifically, to a coffee machine and its control method. Background Technology

[0002] In existing automatic coffee equipment, both the coffee powder inlet and the water inlet are located directly above the filter assembly. The coffee powder inlet is used to deliver coffee powder to the filter assembly, while the water inlet is used to deliver hot water or high-temperature steam to the filter assembly.

[0003] When hot water or high-temperature steam is injected into the filter assembly through the water inlet, the steam generated can easily wet the powder outlet or even enter the powder supply pipe upstream of the powder outlet, causing the powder supply pipe to become damp. A damp powder supply pipe will cause the coffee powder to not flow smoothly, and the inner wall of the powder supply pipe is easily contaminated with coffee powder, making the inside of the powder supply pipe dirty. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to prevent water vapor from entering the powder discharge port.

[0005] This invention provides a control method for a coffee machine. The coffee machine includes a body with a powder inlet and a water inlet, a filter assembly, and a moving mechanism connecting the body and the filter assembly. The filter assembly has a brewing chamber and a feed inlet at the top of the brewing chamber. The body includes a powder supply assembly connected to the powder inlet and a water supply assembly connected to the water inlet. The moving mechanism can drive the filter assembly to move the powder receiving position corresponding to the powder inlet and the water receiving position corresponding to the water inlet.

[0006] The control method includes:

[0007] Upon receiving a start command, control the moving mechanism to drive the filter assembly to the powder receiving position;

[0008] Drive the powder supply assembly to deliver coffee powder to the powder inlet, so that the coffee powder falls from the powder inlet into the feed inlet;

[0009] The moving mechanism is controlled to drive the filter assembly to the water receiving position;

[0010] The water injection assembly is driven to deliver brewing water to the water injection port, so that the brewing water falls from the water injection port into the feed port.

[0011] When brewing coffee using this coffee machine, first, the moving mechanism drives the filter assembly to the powder receiving position so that the powder inlet on the machine body corresponds to the feed inlet of the filter assembly. Then, the powder supply assembly is controlled to deliver coffee powder downwards through the powder inlet. The coffee powder falls into the feed inlet of the filter assembly and enters the brewing chamber. After the powder supply assembly has delivered enough coffee powder for one brewing, the moving mechanism drives the filter assembly to the water receiving position so that the water inlet on the machine body corresponds to the feed inlet of the filter assembly. Then, the water supply assembly is controlled to deliver brewing water downwards through the water inlet. The brewing water falls into the feed inlet of the filter assembly and enters the brewing chamber, thus completing the extraction of coffee in the brewing chamber. Furthermore, because the feed inlet of the filter assembly and the powder inlet on the machine body are vertically offset when the filter assembly is in the water receiving position, water vapor generated during the water pouring process cannot enter the powder inlet. The powder inlet and the powder supply pipe upstream of the powder inlet can always remain dry, thus ensuring smooth powder delivery and internal cleanliness of the powder supply pipe.

[0012] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0014] Figure 1 This is a disassembly diagram of a coffee machine according to Embodiment 1 of the present invention;

[0015] Figure 2 This is a three-dimensional schematic diagram of a coffee machine with the filter component in the powder receiving position according to Embodiment 1 of the present invention;

[0016] Figure 3 This is a cross-sectional schematic diagram of a coffee machine in the powder receiving position according to Embodiment 1 of the present invention;

[0017] Figure 4 This is a three-dimensional schematic diagram of a coffee machine with the filter assembly in the water receiving position according to Embodiment 1 of the present invention;

[0018] Figure 5 This is a cross-sectional schematic diagram of a coffee machine in the water receiving position according to Embodiment 1 of the present invention;

[0019] Figure 6 This is a schematic diagram showing the connection between the filter component and the moving mechanism in Embodiment 1 of the present invention;

[0020] Figure 7This is a schematic diagram showing the relative positions of the water inlet and the powder outlet in Embodiment 1 of the present invention;

[0021] Figure 8 This is a cross-sectional schematic diagram of the water injection device in Embodiment 1 of the present invention;

[0022] Figure 9 This is a cross-sectional schematic diagram of the powder dispensing opening and closing mechanism in the open state in Embodiment 1 of the present invention;

[0023] Figure 10 This is a cross-sectional schematic diagram of the powder discharge opening and closing mechanism in the closed state in Embodiment 1 of the present invention;

[0024] Figure 11 This is a cross-sectional schematic diagram of another heating device and water injection device in an embodiment of the present invention;

[0025] Figure 12 This is a disassembly diagram of a coffee machine according to Embodiment 2 of the present invention;

[0026] Figure 13 This is a three-dimensional schematic diagram of a coffee machine in the powder receiving position according to Embodiment 2 of the present invention;

[0027] Figure 14 This is a cross-sectional view of the coffee machine in the powder receiving position according to Embodiment 2 of the present invention;

[0028] Figure 15 This is a three-dimensional schematic diagram of a coffee machine in the water-receiving position according to Embodiment 2 of the present invention;

[0029] Figure 16 This is a cross-sectional view of the coffee machine in the water receiving position according to Embodiment 2 of the present invention;

[0030] Figure 17 This is a schematic diagram showing the connection between the filter component and the moving mechanism in Embodiment 2 of the present invention;

[0031] Figure 18 This is a partially enlarged cross-sectional view of the filter assembly and coffee pot in Embodiment 2 of the present invention. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0033] like Figures 1-5 As shown, Figure 1 The structure of a coffee machine 100 according to this embodiment is shown. The coffee machine 100 includes a body 101, a filter assembly 2, a moving mechanism 3, and a controller.

[0034] The body 101 is the main structure of the coffee machine 100. The body 101 has a powder dispensing inlet and a water inlet. Both the powder dispensing inlet 511 and the water inlet 411 are located at a relatively high position on the body 101. Both the powder dispensing inlet 511 and the water inlet 411 face downwards. The powder dispensing inlet 511 and the water inlet 411 are separated, and there is a certain distance between them in the horizontal direction.

[0035] The main body 101 includes a casing 1, a control panel, a water supply assembly 6, and a powder supply assembly 7. The water supply assembly 6 is connected to the water inlet 411 via a water passage. The water supply assembly 6 supplies brewing water to the water inlet 411, and the brewing water is then output downwards through the water inlet 411. This brewing water can be hot water or steam. The water supply assembly 6 includes a water tank 61, a water pump, and an electric heater. The water tank 61 is used to hold the brewing water. The inlet of the water pump is connected to the outlet of the water tank 61 via a pipe, and the outlet of the water pump is connected to the water inlet 411 via a water passage. The electric heater is installed on the water passage connecting the outlet of the water pump and the water inlet 411. The electric heater is used to heat the brewing water output by the water pump to hot water at a set brewing temperature, or to heat the brewing water into steam. The set brewing temperature can be set by the user, and this set brewing temperature can be 70℃~100℃.

[0036] The coffee bean supply assembly 7 includes a grinding device 72 and a coffee bean hopper 71. The coffee bean hopper 71 is used to hold coffee beans. The coffee bean hopper 71 is positioned above the grinding device 72. The outlet of the coffee bean hopper 71 is connected to the inlet of the grinding device 72. The coffee bean hopper 71 supplies coffee beans to the grinding device 72. The outlet of the grinding device 72 is connected to one end of a coffee supply pipe 73. The grinding device 72 grinds the coffee beans into coffee powder, which is then output through the coffee supply pipe 73. Alternatively, the coffee bean supply assembly 7 can be a coffee powder hopper containing coffee powder, which is then output through the coffee supply pipe 73. The coffee supply pipe 73 is connected to a coffee powder inlet 511. The coffee bean supply assembly 7 can supply coffee powder to the coffee powder inlet 511, and the coffee powder is then output downwards through the coffee powder inlet 511.

[0037] The control panel includes buttons, knobs, and / or a touchscreen. The control panel serves as the information input component for the coffee machine 100. Users can send commands to the coffee machine 100 via the control panel. For example, the control panel may have a start button; pressing the start button sends a start command to the coffee machine 100, instructing it to begin coffee preparation. The control panel may also have a strength adjustment button; pressing this button sets the strength of the coffee. A cup size adjustment button allows users to set the total amount of coffee to be prepared. A timer button allows users to set the brewing time. Finally, a grind adjustment button allows users to set the grind size of the coffee powder. Users can preset the parameters of the coffee machine through the control panel, and after the coffee machine is started, it will run according to the preset parameters.

[0038] The filter assembly 2 includes a filter funnel 21. A brewing chamber 211 is provided inside the filter funnel 21. An inlet 212 is provided at the top of the brewing chamber 211, facing upwards. An outlet 213 is provided at the bottom of the brewing chamber 211, and the inlet 212 is larger than the outlet 213. The height of the inlet 212 of the filter assembly 2 is less than the height of the water inlet 411 and the powder outlet 511.

[0039] The moving mechanism 3 is connected to the machine body 101 and the filter assembly 2. The moving mechanism 3 can drive the filter assembly 2 to move relative to the machine body 101. The moving mechanism 3 can drive the filter assembly 2 to translate horizontally. The moving mechanism 3 can also drive the filter assembly 2 to the powder receiving position, where the filter assembly 2's inlet 212 corresponds to the powder discharge port 511 on the machine body 101. The correspondence between the inlet 212 and the powder discharge port 511 can be such that the powder discharge port 511 can be projected vertically onto the inlet 212. The moving mechanism 3 can also drive the filter assembly 2 to the water receiving position, where the filter assembly 2's inlet 212 corresponds to the water inlet 411 on the machine body 101. The correspondence between the inlet 212 and the water inlet 411 can be such that the water inlet 411 can be projected vertically onto the inlet 212. When the filter assembly 2 is in the water receiving position, the feed inlet 212 of the filter assembly 2 and the powder discharge inlet 511 of the machine body 101 are vertically offset from each other. The moving mechanism 3 is configured to drive the filter assembly 2 to move between the powder receiving position and the water receiving position. For example, the moving mechanism 3 can drive the filter assembly 2 from the powder receiving position to the water receiving position, and the moving mechanism 3 can also drive the filter assembly 2 from the water receiving position to the powder receiving position.

[0040] The controller is the logic control unit of the coffee machine 100. The controller is electrically connected to the operation panel, the moving mechanism 3, the grinding device 72 of the powder supply assembly 7, and the water pump and electric heater of the water supply assembly 6.

[0041] This embodiment also proposes a control method for a coffee machine 100, which is implemented based on the coffee machine 100 described above. The control method includes the following steps:

[0042] Step S1: The controller receives the start command;

[0043] Users can send start commands to the coffee machine 100 via the control panel or a mobile terminal connected to the coffee machine 100. This mobile terminal can be a smartphone, a smart wearable device, or a tablet. Upon receiving the start command, the controller activates the various actuators of the coffee machine 100 to begin making coffee.

[0044] Step S2: The controller controls the moving mechanism 3 to drive the filter assembly 2 to the powder receiving position, so that the feed port 212 of the filter assembly 2 corresponds to the powder discharge port 511 of the machine body 101;

[0045] like Figure 2 , 3As shown, the controller can drive the filter assembly 2 to move via the moving mechanism 3. After the moving mechanism 3 moves the filter assembly 2 to the powder receiving position, the feed port 212 of the filter assembly 2 corresponds to the powder discharge port 511 of the machine body 101. The feed port 212 of the filter assembly 2 can be located directly below the powder discharge port 511 of the machine body 101.

[0046] Step S3: The controller drives the powder supply assembly 7 to deliver coffee powder to the powder outlet 511 of the machine body 101, so that the coffee powder falls into the feed inlet 212 of the filter assembly 2.

[0047] After the feed inlet 212 of the filter assembly 2 aligns with the powder outlet 511 of the machine body 101, the controller drives the grinding device 72 to grind the coffee beans. The grinding device 72 is located below the coffee bean hopper 71. The coffee beans in the coffee bean hopper 71 fall into the grinding device 72 under the action of gravity. When the grinding device 72 is activated, it grinds the falling coffee beans into coffee powder and conveys the coffee powder to the powder outlet. Since the powder outlet corresponds to the feed inlet 212 of the filter assembly 2, the coffee powder output from the powder outlet can fall into the feed inlet 212 of the filter assembly 2 and enter the brewing chamber 211 of the filter assembly 2.

[0048] Step S4: The controller controls the moving mechanism 3 to drive the filter assembly 2 to the water receiving position, so that the feed inlet 212 of the filter assembly 2 corresponds to the water inlet 411 of the machine body 101;

[0049] like Figure 4 , 5 As shown, after the moving mechanism 3 moves the filter assembly 2 to the water receiving position, the feed inlet 212 of the filter assembly 2 corresponds to the water inlet 411 of the machine body 101, and the feed inlet 212 of the filter assembly 2 is located directly below the water inlet 411 of the machine body 101. At the same time, when the filter assembly 2 is in the water receiving position, the feed inlet 212 of the filter assembly 2 is vertically offset from the powder discharge port 511 of the machine body 101, and the feed inlet 212 of the filter assembly 2 is not located directly below the powder discharge port 511 of the machine body 101.

[0050] Step S5: The controller drives the water injection component to deliver brewing water to the water inlet 411 of the machine body 101, so that the brewing water falls into the feed inlet 212 of the filter component 2.

[0051] The controller can drive the water pump of the water inlet assembly to pump the brewing water from the water tank 61 to the water inlet 411, and simultaneously activate the electric heater of the water inlet assembly to heat the brewing water, so that the water inlet 411 can output brewing water at the set brewing temperature. Since the water inlet 411 corresponds to the feed inlet 212 of the filter assembly 2, the brewing water output from the water inlet 411 can fall into the feed inlet 212 of the filter assembly 2 and enter the brewing chamber 211 of the filter assembly 2 to extract coffee powder.

[0052] In this way, when using the coffee machine 100 to brew coffee, the moving mechanism 3 is first controlled to drive the filter assembly 2 to the powder receiving position so that the powder outlet 511 of the machine body 101 corresponds to the feed inlet 212 of the filter assembly 2. Then, the powder supply assembly 7 is controlled to convey coffee powder downward through the powder outlet 511. The coffee powder falls into the feed inlet 212 of the filter assembly 2 and enters the brewing chamber 211. After the powder supply assembly 7 has conveyed the coffee powder required to make one cup of coffee, the moving mechanism 3 is controlled to drive the filter assembly 2 to the water receiving position so that the water inlet 411 of the machine body 101 corresponds to the feed inlet 212 of the filter assembly 2. Then, the water supply assembly is controlled to convey brewing water downward through the water inlet 411. The brewing water falls into the feed inlet 212 of the filter assembly 2 and enters the brewing chamber 211, so that the coffee can be extracted in the brewing chamber 211. Furthermore, since the feed inlet 212 of the filter assembly 2 and the powder discharge port 511 of the machine body 101 are vertically offset when the filter assembly 2 is in the water receiving position, the water vapor generated during the water injection process cannot enter the powder discharge port 511. The powder discharge port 511 and the powder supply pipe 73 upstream of the powder discharge port 511 can always remain dry, so the powder supply pipe 73 can keep the powder discharge smooth and the inside clean.

[0053] In one illustrative embodiment, the control method further includes step S3a, which is after step S3 and before step S4.

[0054] Step S3a: The controller controls the moving mechanism 3 to drive the filter assembly 2 to move so as to level the coffee powder in the brewing chamber 211 of the filter assembly 2.

[0055] After coffee powder is introduced into the brewing chamber 211 of the filter assembly 2, the moving mechanism 3 can shake the coffee powder in the brewing chamber 211 by moving the filter assembly 2 before water is poured into the brewing chamber 211, so as to level the coffee powder, make the surface of the coffee powder smoother, and make the coffee powder more compact, which plays a certain role in tamping the powder and improving the quality of coffee brewing.

[0056] The moving mechanism 3 can drive the filter assembly 2 to move from a first position to a second position different from the first position. The first position can be the coffee powder receiving position, and the second position can be the water receiving position. For example, when the moving mechanism 3 drives the filter assembly 2 from the first position to the second position, it can stop abruptly upon reaching the second position. Due to the inertia of the coffee powder, the coffee powder will be leveled.

[0057] The moving mechanism 3 can also drive the filter component 2 to move back and forth between the first position and the second position. By moving the filter component 2 back and forth, the coffee powder is leveled by inertia.

[0058] In an illustrative embodiment, the body 101 includes a housing 1, which serves as the skeletal structure of the coffee machine 100. The housing 1 includes a column 11 and a cantilever 12. The column 11 can be constructed as a cylindrical hollow structure, extending vertically. The cantilever 12 is constructed as a straight, hollow structure. Alternatively, the cantilever 12 can be constructed as a strip-shaped hexahedral hollow structure. The cantilever 12 extends horizontally. One end of the cantilever 12 is connected to the upper end of the column 11. The cantilever 12 includes a mounting plate 121. The mounting plate 121 is located at the bottom of the cantilever 12. The mounting plate 121 can be constructed as a horizontally positioned flat plate. A first shaft hole 1211 is provided on the mounting plate 121. The first shaft hole 1211 penetrates the mounting plate 121. The first shaft hole 1211 can be a circular hole. The mounting plate 121 is located above the filter assembly 2.

[0059] like Figure 3 , 6 As shown, the moving mechanism 3 includes a turntable 31, a rotating shaft 33, a bracket 36, and a drive mechanism 32. The turntable 31 is positioned above the mounting plate 121. The turntable 31 can be disc-shaped and parallel to the mounting plate 121. The rotating shaft 33 is vertically positioned and passes through a first shaft hole 1211 in the mounting plate 121. The rotating shaft 33 and the first shaft hole 1211 are in a clearance fit, allowing the rotating shaft 33 to rotate within the first shaft hole 1211. The upward-facing top end of the rotating shaft 33 is connected to the turntable 31, and the rotating shaft 33 and the turntable 31 are coaxially arranged. The downward-facing bottom end of the rotating shaft 33 is connected to the bracket 36.

[0060] The bracket 36 is generally strip-shaped. It is positioned below the mounting plate 121. One end of the bracket 36 is connected to the downward-facing end of the rotating shaft 33, and the other end is connected to the filter assembly 2. The bracket 36 supports the filter assembly 2. A insertion part, which can be constructed as a horizontal fork-like structure, can be provided on the end of the bracket 36 facing away from the rotating shaft 33. The insertion part 361 can be inserted into the bottom end of the filter funnel 21 of the filter assembly 2. The insertion part 361 and the filter assembly 2 are detachably connected, allowing for easy removal of the filter assembly 2 from the bracket 36 for cleaning and easy installation of the filter assembly 2 back onto the bracket 36. The filter assembly 2 is located on one side of the axis of the rotating shaft 33.

[0061] The drive mechanism 32 is housed within the cantilever 12. The drive mechanism 32 drives the turntable 31 to rotate around the axis of the shaft 33. When the turntable 31 rotates, it drives the bracket 36 and the filter assembly 2 to rotate around the axis of the shaft 33 via the shaft 33, thereby enabling the filter assembly 2 to move between the water receiving position and the powder receiving position.

[0062] In this embodiment, the edge of the turntable 31 is provided with multiple teeth 311, which are arranged sequentially along the circumference of the turntable 31. The drive mechanism 32 includes a first motor 321 and a first gear 322. The first gear 322 meshes with the teeth 311 on the turntable 31. The first gear 322 may be sleeved on the main shaft of the first motor 321. The first motor 321 is electrically connected to a controller. The controller can drive the filter assembly 2 to rotate from the water receiving position to the powder receiving position by controlling the first motor 321 to rotate forward, and the controller can drive the filter assembly 2 to rotate from the powder receiving position to the water receiving position by controlling the first motor 321 to rotate in reverse.

[0063] In one illustrative embodiment, the moving mechanism 3 further includes a first limit switch 34 and a second limit switch 35. Both the first limit switch 34 and the second limit switch 35 are connected to the cantilever 12 of the housing 1. The first limit switch 34 and the second limit switch 35 are disposed on the outer side of the turntable 31. The first limit switch 34 and the second limit switch 35 are spaced apart circumferentially from each other on the turntable 31.

[0064] A limiting part 312 is also provided on the turntable 31. The limiting part 312 may be provided on the side wall of the outer peripheral wall of the turntable 31 near the first limiting switch 34 and the second limiting switch 35. The limiting part 312 may be constructed as a protrusion. When the filter assembly 2 moves to the powder receiving position, the limiting part 312 contacts the first limiting switch 34 to trigger the first limiting switch 34. When the filter assembly 2 moves to the water receiving position, the limiting part 312 contacts the second limiting switch 35 to trigger the second limiting switch 35. The first limiting switch 34 is configured to send a stop command to the controller after being triggered. The second limiting switch 35 is configured to send a stop command to the controller after being triggered. The stop command is used to instruct the first motor 321 to be turned off. The controller is configured to stop driving the first motor 321 to rotate after receiving the command to turn off the first motor 321.

[0065] Thus, after the first motor 321 drives the first gear 322 to rotate, moving the filter assembly 2 from the water receiving position to the powder receiving position, the limiting part 312 triggers the first limit switch 34 to shut off the first motor 321, causing the filter assembly 2 to stop at the powder receiving position. At this time, the powder discharge port 511 corresponds to the feed inlet 212. After the first motor 321 drives the second gear to rotate, moving the filter assembly 2 from the powder receiving position to the water receiving position, the limiting part 312 triggers the second limit switch 35 to shut off the first motor 321, causing the filter assembly 2 to stop at the water receiving position. At this time, the water inlet 411 corresponds to the feed inlet 212.

[0066] In one illustrative embodiment, step S2 includes:

[0067] Step S21: The controller determines whether the filter component 2 is in the powder receiving position. If so, proceed to step S22.

[0068] Step S22: The moving mechanism does not move; proceed to step S3.

[0069] Step S23: The controller controls the moving mechanism 3 to drive the filter assembly 2 to the powder receiving position.

[0070] Thus, if filter component 2 is already in the powder-collecting position, for example, its initial position when the coffee machine is turned on, then it is not necessary to use the moving mechanism 3 to move component 2 to the powder-collecting position. However, if filter component 2 is not in the powder-collecting position, the controller needs to use the moving mechanism 3 to move component 2 to the powder-collecting position. The controller can determine whether filter component 2 is in the powder-collecting position by the triggering status of the first limit switch 34. If the first limit switch 34 has been triggered, the controller confirms that filter component 2 is in the powder-collecting position; conversely, if the first limit switch 34 has not been triggered, the controller confirms that filter component 2 is not in the powder-collecting position.

[0071] In one illustrative embodiment, when the filter assembly 2 moves to the powder receiving position, the center of the feed inlet 212 of the filter assembly 2 is aligned vertically with the center of the powder discharge outlet 511 of the machine body 101.

[0072] Since the center of the feed inlet 212 of the filter assembly 2 is aligned vertically with the center of the powder outlet 511 of the machine body 101, the coffee powder can be more evenly sprinkled into the brewing chamber 211 when it is discharged from the powder outlet 511. This improves the uniformity of the coffee powder distribution in the brewing chamber 211, and the surface of the coffee powder is smoother, which is beneficial to improving the quality of the coffee.

[0073] In one illustrative embodiment, a bearing housing 1212 is also provided on the mounting plate 121. The bearing housing 1212 may be cylindrical. The bearing housing 1212 is coaxially arranged with the shaft hole. The bearing housing 1212 may be disposed within the cantilever 12, located on the upward-facing surface of the mounting plate 121. The downward-facing end of the bearing housing 1212 is connected to the mounting plate 121.

[0074] The moving mechanism 3 also includes a bearing 37. The bearing 37 can be a ball bearing 37. The bearing 37 is disposed within a bearing housing 1212. The outer ring of the bearing 37 is fixedly connected to the bearing housing 1212. The outer ring of the bearing 37 and the bearing housing 1212 can have an interference fit. The inner ring of the bearing 37 is fitted onto the rotating shaft 33. The inner ring of the bearing 37 and the rotating shaft 33 can also have an interference fit.

[0075] In this way, the bearing 37 rotatably connects the rotating shaft 33 to the mounting plate 121, resulting in low rotational resistance and smoother rotation.

[0076] In one illustrative embodiment, such as Figure 8As shown, the fuselage 101 also includes a water injection device 4. The mounting plate 121 of the cantilever 12 is also provided with a first mounting hole. The first mounting hole is a through hole.

[0077] Water injection device 4 is disposed at the first mounting hole. Water injection device 4 includes a base 42, a water injection component 41, and a first drive assembly 43. The base 42 is connected to the cantilever 12 of the housing 1. The base 42 and the cantilever 12 of the housing 1 are fixedly connected; the connection can be made by screws, welding, bolts, or adhesive. The base 42 is provided with a water inlet hole 421. The water inlet hole 421 may extend vertically and penetrate the base 42. The water injection component 41 is rotatably connected to the base 42. The water injection component 41 is provided with an annular groove 410. The annular groove 410 may be a circular groove. The annular groove 410 is located below the water inlet hole 421 of the base 42. The opening of the annular groove 410 faces the water inlet hole 421 of the base 42. The axis of rotation of the water injection component 41 is the axis of the annular groove 410. The axis of the annular groove 410 is vertically oriented, allowing the water injection component 41 to rotate relative to the base 42 around the annular axis. A water inlet 411 is located on the water injection component 41. The water inlet 411 is situated at the bottom of the annular groove 410. The water inlet 411 can be shaped as a circular hole. The water inlet 411 penetrates the bottom of the annular groove 410. The water inlet 411 is offset from the axis of rotation of the water injection component 41.

[0078] The first drive assembly 43 is driveably connected to the water injection component 41. The first drive assembly 43 drives the water injection component 41 to rotate around the axis of the annular groove 410. In this embodiment, the first drive assembly 43 includes a second motor 431 and a first transmission mechanism 432. The first transmission mechanism 432 can be a gear transmission mechanism, a belt transmission mechanism, or a chain transmission mechanism. The first transmission mechanism 432 is driveably connected to the second motor 431 and the water injection component 41. The second motor 431 is fixed relative to the base 42. The first transmission mechanism 432 transmits the torque output by the second motor 431 to the water injection component 41 to drive the water injection component 41 to rotate.

[0079] The water supply assembly 6 is connected to the water inlet 421 of the water injection device 4 via a pipe. The water supply assembly 6 is configured to supply bathing water to the water injection device 4. The water pump inlet is connected to the outlet of the water tank 61 via a pipe, and the water pump outlet is connected to the water inlet 421 of the base 42 via a pipe. An electric heater is installed on the pipe connecting the water pump outlet and the water inlet 421 of the base 42. The water inlet 421 is configured to deliver the bathing water supplied by the water supply assembly 6 into the annular groove 410 of the water injection component 41.

[0080] The controller is electrically connected to the second motor 431 of the water injection device 4. The controller can drive the second motor 431 to rotate, thereby driving the water injection component 41 to rotate.

[0081] Step S5 also includes: during the process of the controller driving the water injection component to deliver brewing water to the water inlet 411 of the body 101, the controller also controls the first drive component 43 to drive the water injection component 41 to rotate.

[0082] Thus, when the filter assembly 2 is in the water receiving position, the water supply assembly 6 injects brewing water into the water inlet 421 of the base 42. The water inlet 421 of the base 42 delivers the brewing water into the annular groove 410 of the water injection component 41. The brewing water in the annular groove 410 flows out of the annular groove 410 through the water inlet 411 at the bottom of the annular groove 410 and falls into the brewing chamber 211 containing coffee powder below. During this process, the first drive assembly 43 drives the water injection component 41 to rotate around the axis of the annular groove 410. The water inlet 411 rotates around the axis with the water injection component 41, so the brewing water in the annular groove 410 can be evenly distributed into the brewing chamber 211 as the water inlet 411 rotates, thereby ensuring the uniformity of coffee brewing.

[0083] In one illustrative embodiment, when the filter assembly 2 is in the water receiving position, the rotation axis of the water injection component 41 passes through the center of the feed inlet 212 of the filter assembly 2.

[0084] The rotation axis of the water inlet 41 is the rotation axis of the water inlet 411. The center of the feed inlet 212 of the filter assembly 2 is aligned with the rotation axis of the water inlet 411. The water inlet 411 can more evenly distribute the brewing water into the brewing chamber 211, thereby further improving the uniformity of coffee brewing.

[0085] In one illustrative embodiment, the minimum distance between the powder outlet 511 on the machine body and the water inlet 411 of the water inlet 41 is greater than the radius of the feed inlet 212 of the filter assembly 2.

[0086] The minimum distance between the powder discharge port 511 and the water injection port 411 is greater than the radius of the feed inlet 212 to prevent water vapor from entering the powder discharge port 511 during water injection.

[0087] In one illustrative embodiment, such as Figure 7 As shown, the distance L between the rotation axis of the water injection component 41 and the powder discharge port 511 of the filter assembly 2 is 50mm to 80mm.

[0088] When the distance between the rotation axis of the water inlet 41 and the powder outlet 511 of the filter assembly 2 is greater than 80mm, the filter assembly 2 needs to move a large distance, and the cantilever 12 needs to be set to be longer, which will ultimately result in the coffee machine 100 being too large. When the distance between the rotation axis of the water inlet 41 and the powder outlet 511 of the filter assembly 2 is less than 50mm, the distance between the filter assembly 2 and the powder outlet 511 is too small, and when the filter assembly 2 is in the water receiving position, the feed inlet 212 of the filter assembly 2 is too close to the powder outlet 511, and the effect of preventing water vapor from entering the powder outlet 511 is not obvious.

[0089] In one illustrative embodiment, the base 42 includes a substrate 420. A second axial hole 4201 is provided on the substrate 420. The second axial hole 4201 is located in the middle of the substrate 420. The second axial hole 4201 penetrates the substrate 420 perpendicularly. The second axial hole 4201 can be a circular through hole.

[0090] The water injection component 41 includes an outer cylinder 414, an inner cylinder 412, and a bottom plate 413. Both the outer cylinder 414 and the inner cylinder 412 are cylindrical. The inner diameter of the outer cylinder 414 is larger than the outer diameter of the inner cylinder 412. The length of the inner cylinder 412 is greater than the length of the outer cylinder 414. The inner cylinder 412 is disposed inside the outer cylinder 414. The inner cylinder 412 and the outer cylinder 414 are coaxially arranged. Both the inner cylinder 412 and the outer cylinder 414 are vertically arranged. The bottom ends of the inner cylinder 412 and the outer cylinder 414 are flush. The bottom plate 413 is a circular flat plate or annular flat plate. The bottom plate 413 extends from the bottom end of the inner cylinder 412 to the bottom end of the outer cylinder 414, and the bottom plate 413 seals the annular gap between the bottom ends of the inner cylinder 412 and the outer cylinder 414. Water inlets 411 are all disposed on the bottom plate 413 and penetrate through the bottom plate 413. The inner cylinder 412, outer cylinder 414, and bottom plate 413 enclose an annular groove 410, with the upward-facing surface of the bottom plate 413 forming the bottom surface of the annular groove 410. The inner cylinder 412 passes through the second axial hole 4201 of the base plate 420, with a clearance fit between the inner cylinder 412 and the second axial hole 4201. The base plate 420 is also located inside the outer cylinder 414, with its outer edge clearance-fitted to the inner peripheral wall of the outer cylinder 414. The base plate 420 covers the opening of the annular groove 410 and forms a rotatable connection with the water injection component 41.

[0091] The first drive assembly 43 is disposed on the side of the base 42 facing away from the bottom plate 413 of the water injection component 41. The first transmission mechanism 432 of the first drive assembly 43 is connected to the main shaft of the second motor 431 and the inner cylinder 412 of the water injection component 41. The first transmission mechanism 432 can transmit the torque output by the main shaft of the second motor 431 to the inner cylinder 412, so that the inner cylinder 412 can rotate around its own axis.

[0092] In one illustrative embodiment, the first transmission mechanism 432 includes a second gear ring 4322 and a second gear 4321. The second gear ring 4322 is annular, and its outer circumferential surface has multiple teeth. The second gear ring 4322 is fitted onto the end of the inner cylinder 412 facing away from the bottom plate 413. The second gear ring 4322 and the inner cylinder 412 are fixedly connected. Alternatively, the second gear ring 4322 and the inner cylinder 412 can be connected by a snap-fit ​​connection. The inner edge of the second gear ring 4322 has snap-fit ​​grooves, and the number of snap-fit ​​grooves can be multiple, for example, three. The multiple snap-fit ​​grooves are evenly distributed circumferentially on the second gear ring 4322. The end of the inner cylinder 412 facing away from the bottom plate has multiple snap-fits, the number of which is the same as the number of snap-fit ​​grooves. The snap-fits and snap-fit ​​grooves are arranged in a one-to-one correspondence, with each snap-fit ​​hooking onto its corresponding snap-fit ​​groove to achieve a snap-fit ​​connection between the second gear ring 4322 and the inner cylinder 412.

[0093] The second gear 4321 is mounted on the main shaft of the second motor 431. The second gear 4321 and the main shaft of the second motor 431 can be either an interference fit or a keyed connection. The second gear 4321 is located on one side of the second gear ring 4322 and meshes with the second gear ring 4322. The body 101 of the second motor 431 is located on the side of the second gear 4321 facing away from the base plate 420.

[0094] The second motor 431 drives the second gear 4321 to rotate the second gear ring 4322. When the second gear ring 4322 rotates, it drives the water injection component 41 to rotate. This first transmission mechanism 432 has a simple structure, high transmission efficiency, and high reliability. The second gear ring 4322 and the inner cylinder 412 are connected by a snap-fit, which is easy to assemble.

[0095] In one illustrative embodiment, the mounting plate 121 of the housing 1 is further provided with a second mounting hole. The second mounting hole is closer to the column 11 than the first mounting hole.

[0096] The machine body also includes a powder dispensing opening and closing mechanism 5. The powder dispensing opening and closing mechanism 5 can be mounted on the cantilever 12 of the machine housing 1. For example... Figure 9 , 10 As shown, the powder discharge opening and closing mechanism 5 includes a powder guide 51, a housing 52, an opening and closing plate 53, and a second drive assembly 54. The housing 52 is disposed at the second mounting hole of the mounting plate 121 of the housing 1. The housing 52 is connected to the housing 1. The connection between the housing 52 and the housing 1 can be screwed.

[0097] The powder guide 51 is connected to the housing 52. The powder guide 51 has a powder dispensing channel 510. The powder dispensing channel 510 vertically penetrates the powder guide 51. The opening at the bottom of the powder dispensing channel 510 is a powder dispensing port 511. The powder dispensing port 511 is used to dispense coffee powder. The end of the powder supply tube 73 of the powder supply assembly 7 extends into the powder dispensing channel 510, allowing it to feed coffee powder into the channel. After the coffee powder supplied by the powder supply assembly 7 enters the powder dispensing channel 510, the coffee powder in the channel 510 can be dispensed through the open powder dispensing port 511.

[0098] The opening / closing plate 53 is plate-shaped and can be a flat plate. The opening / closing plate 53 is slidably connected to the housing 52 and can slide relative to the housing 52. The opening / closing plate 53 can slide along a horizontal straight line. The opening / closing plate 53 can slide to the closed position, where it is inserted below the powder guide 51 and blocks the powder outlet 511, which is in a closed state. The opening / closing plate 53 can slide to the open position, where it is located to one side of the powder outlet 511, and the powder outlet 511 is not blocked by the opening / closing plate 53, thus the powder outlet 511 is in an open state.

[0099] The second drive assembly 54 is connected to the housing 52 and the opening / closing plate 53. The second drive assembly 54 is configured to drive the opening / closing plate 53 to slide between an open position and a closed position. The second drive assembly 54 is electrically connected to a controller. The controller can open and close the powder outlet 511 by controlling the second drive assembly 54 to drive the opening / closing plate 53 to slide between the open and closed positions.

[0100] The control method also includes steps S2a and S3b. Step S2a occurs after step S1 and before step S2.

[0101] Step S2a: The controller drives the powder dispensing opening and closing mechanism 5 to open the powder dispensing port 511.

[0102] Before the controller controls the moving mechanism 3 to drive the filter assembly 2 to the powder receiving position, the controller controls the second driving assembly 54 to drive the opening and closing plate 53 to the open position to open the powder discharge port 511. This allows the coffee powder remaining from the previous use of the coffee machine to be discharged downwards from the powder discharge port 511, thereby preventing these residual coffee powders from entering the filter assembly and affecting the quality of the current brewed coffee.

[0103] Step S3b is after step S3 and before step S5.

[0104] Step S3b: The controller drives the powder discharge opening and closing mechanism 5 to close the powder discharge port 511.

[0105] After the controller drives the powder supply assembly 7 to supply coffee powder to the powder outlet 511 of the machine body 101, and before the controller drives the water inlet assembly to supply brewing water to the water inlet 411 of the machine body 101, the controller closes the powder outlet 511 by controlling the second drive assembly 54 to drive the opening and closing plate 53 to the closed position.

[0106] When making coffee using the coffee machine 100, the moving mechanism 3 first drives the filter assembly 2 to move to the powder receiving position, and then the second driving assembly 54 drives the opening and closing plate 53 to slide to the open position. The opening and closing plate 53 moves away from the powder outlet 511, allowing the powder outlet 511 to output coffee powder into the brewing chamber 211 of the coffee machine 100. After the powder outlet 511 outputs the coffee powder required for one brewing, the second driving assembly 54 drives the opening and closing plate 53 to slide to the closed position, closing the powder outlet 511. The moving mechanism 3 then drives the filter assembly 2 to move to the water receiving position, injecting brewing water into the brewing chamber 211 through the water inlet 411. Since the powder outlet 511 is closed, when the water inlet 411 injects brewing water into the brewing chamber 211 to brew coffee powder, the water vapor generated during the water injection process cannot enter the powder outlet 511. The powder outlet 511 and the powder supply pipe 73 upstream of the powder outlet 511 can always remain dry, so that the powder supply pipe 73 can keep the powder dispensing smoothly and the inside clean.

[0107] In one illustrative embodiment, the powder dispensing opening and closing mechanism 5 further includes an elastic connecting component 55. The elastic connecting component 55 is connected to the powder guide 51 and the housing 52. The elastic connecting component 55 elastically connects the powder guide 51 and the housing 52 together. The elastic connecting component 55 applies a spring force to the powder guide 51, the direction of which is toward the movement trajectory of the opening and closing plate 53. When the opening and closing plate 53 is in the closed position, the opening and closing plate 53 blocks the powder dispensing port 511 of the powder guide 51, and the spring force applied by the elastic connecting component 55 to the powder guide 51 is toward the opening and closing plate 53, causing the powder guide 51 to press tightly against the opening and closing plate 53, thereby causing the powder dispensing port 511 of the powder guide 51 to be tightly attached to the plate surface of the opening and closing plate 53.

[0108] In this way, the powder discharge port 511 of the powder guide 51 is in close contact with the opening and closing plate 53, which can improve the airtightness and further prevent water vapor from entering the powder discharge port 511.

[0109] In one illustrative embodiment, the housing 52 can be constructed as a generally plate-like structure. An elastic connecting component 55 is disposed on one side of the housing 52, and a hinged plate 53 is disposed on the other side of the housing 52. A first through hole 522 is provided on the housing 52, and the elastic connecting component 55 is disposed near the first through hole 522. The first through hole 522 vertically penetrates the housing 52. A powder guide 51 passes through the first through hole 522 of the housing 52. A powder outlet 511 is located at the end of the powder guide 51 near the hinged plate 53. The elastic connecting component 55 is connected to the portion of the powder guide 51 near the elastic connecting component 55. The direction of the elastic force applied by the elastic connecting component 55 to the powder guide 51 is the same as the orientation of the powder outlet 511 of the powder guide 51.

[0110] A first inclined surface 531 is provided at the end of the opening / closing plate 53 facing the powder guide 51. The first inclined surface 531 can be the end face of the end of the opening / closing plate 53 facing the powder guide 51. The first inclined surface 531 is inclined towards the powder guide 51. A second inclined surface 512 is provided at the end of the powder guide 51 near the opening / closing plate 53. The second inclined surface 512 is inclined towards the powder guide 51. When the powder guide 51 is in the open position, the second inclined surface 512 is located on the side of the powder outlet 511 near the opening / closing plate 53. The second inclined surface 512 and the first inclined surface 531 can be parallel to each other.

[0111] When the opening and closing plate 53 is in the open position, one end of the opening and closing plate 53 with the first inclined surface 531 faces the end of the powder guide member 51 with the powder outlet 511, and the first inclined surface 531 of the opening and closing plate 53 is aligned with the second inclined surface 512 of the powder guide member 51 in the sliding direction of the opening and closing plate 53. During the process of the opening and closing plate 53 sliding from the open position to the closed position, the first inclined surface 531 of the opening and closing plate 53 presses the second inclined surface 512 of the powder guide member 51. One component of the pressure on the second inclined surface 512 is opposite in direction to the elastic force applied to the powder guide member 51 by the elastic connecting component 55, and this component is greater than the elastic force. The powder guide member 51 can be pressed by the first inclined surface 531 of the opening and closing plate 53 in the direction opposite to the elastic force on the powder guide member 51.

[0112] Thus, during the sliding motion of the opening and closing plate 53 from the open position to the closed position, the powder guide 51 moves in the direction opposite to the elastic force it bears, allowing the opening and closing plate 53 to smoothly move to the closed position and cover the powder outlet 511. Simultaneously, because the powder guide 51 moves in the direction opposite to the elastic force applied by the elastic connecting assembly 55, the elastic deformation of the elastic connecting assembly 55 increases, meaning the elastic force applied by the elastic connecting assembly 55 to the powder guide 51 increases. This results in greater pressure between the powder guide 51 and the opening and closing plate 53, and better sealing performance at the powder outlet 511.

[0113] In one illustrative embodiment, a groove 521 is provided on the housing 52. The opening of the groove 521 faces downward. The groove 521 is a straight groove. The groove 521 may be an upward arch of the housing 52. A first through hole 522 is provided on the wall of the groove 521, which may be on the bottom wall of the groove 521. The first through hole 522 penetrates the wall of the groove 521.

[0114] The hinge plate 53 is constructed as a flat plate, which can be constructed as a strip-shaped flat plate. The hinge plate 53 is disposed within the slide groove 521. There is a clearance fit between the hinge plate 53 and the slide groove 521. The hinge plate 53 slides along the slide groove 521.

[0115] In this way, the opening and closing plate 53 is set in the sliding groove 521 and can slide along the sliding groove 521, thereby realizing the sliding connection between the housing 52 and the opening and closing plate 53.

[0116] In an illustrative embodiment, the second drive assembly 54 includes a second rack 543, a second gear 542, and a third motor 541. The second rack 543 is connected to the opening and closing plate 53. The extension direction of the second rack 543 is the same as the extension direction of the slide groove 521 and the sliding direction of the opening and closing plate 53. The second rack 543 may be disposed on one side of the opening and closing plate 53 and connected to it. The second rack 543 and the opening and closing plate 53 may be integrally formed. The connection between the second rack 543 and the opening and closing plate 53 may also be conventional, such as welding, bonding, or screw connection. A straight slit may be provided on the wall of the slide groove 521. The extension direction of the slit is the same as the extension direction of the slide groove 521. The second rack 543 extends out of the slide groove 521 from the slit. The length of the slit is greater than the length of the slide groove 521. The second rack 543 can slide along the slit.

[0117] The third motor 541 can be a DC motor or a stepper motor. The third motor 541 is connected to the housing 52. The main shaft of the third motor 541 is perpendicular to the extension direction of the second rack 543. The second gear 542 is sleeved on the main shaft of the third motor 541 and meshes with the second rack 543.

[0118] The third motor 541 drives the second gear 542 to rotate, and the second gear 542 drives the second rack 543 to move along the extension direction of the slit, thereby causing the opening and closing plate 53 to slide along the slide groove 521. The third motor 541 can adjust the sliding direction of the opening and closing plate 53 by changing the rotation direction of the second gear 542.

[0119] In one illustrative embodiment, the coffee machine 100 also includes a base 8 and a coffee pot 9. The bottom end of the upright 11 of the housing 1 is connected to the base 8. The base 8 is located below the cantilever 12. A mounting groove 81 may be provided on the top surface of the base 8.

[0120] The coffee pot 9 is placed on the mounting slot 81 of the base 8. The top of the coffee pot 9 is provided with a liquid inlet 91. The coffee pot 9 is positioned below the water injection device 4 and is spaced apart from the water injection device 4.

[0121] The coffee pot 9 is configured such that when the filter assembly 2 is moved to the water receiving position, the liquid outlet 213 of the filter assembly 2 is connected to the liquid inlet 91 of the coffee pot 9.

[0122] Step S4 further includes: the controller controls the moving mechanism 3 to drive the filter assembly 2 to the water receiving position, so that the outlet 213 of the filter assembly 2 is connected to the inlet 91 of the coffee pot 9.

[0123] In this way, after the water is injected into the brewing chamber 211 through the water inlet 411, the water extracts the coffee powder to form coffee. The coffee flows out from the outlet 213 of the filter component 2 and enters the coffee pot 9, thereby realizing the automatic collection of coffee into the coffee pot 9.

[0124] In one illustrative embodiment, the coffee machine 100 further includes a heating module 10. The heating module 10 is disposed on the base 8. The heating module 10 may be disposed at the bottom of a mounting slot 81 in the base 8. The heating module 10 is used to heat the coffee pot 9 to keep the coffee inside the coffee pot 9 warm. A controller is also electrically connected to the heating module 10. In some embodiments, the heating module 10 may also be disposed on the coffee pot 9.

[0125] The control method also includes step S6 following step S5.

[0126] Step S6: The controller drives the heating module to heat the coffee pot 9 to keep the coffee in the coffee pot 9 warm.

[0127] In this way, after the water inlet assembly delivers brewing water to the water inlet 411, the coffee is automatically collected into the coffee pot 9. At this time, the controller heats the coffee pot 9 through the heating module, maintaining the coffee inside the coffee pot 9 at the set temperature. This set temperature can be 40-70℃ and can be set by the user. Maintaining the coffee temperature at a moderate level provides a better user experience.

[0128] In one illustrative embodiment, such as Figure 5 As shown, the coffee machine 100 also includes a heating element 10a and a first temperature sensor. A controller is electrically connected to the heating element 10a and the first temperature sensor. The heating element 10a heats the filter assembly 2. The heating element 10a converts electrical energy into heat energy to heat the filter assembly 2. The first temperature sensor detects the ambient temperature. The first temperature sensor may be mounted on the machine housing 1.

[0129] The control method also includes steps S2b to S2d, which are after step S2 and before step S3 or step S5.

[0130] Step S2b: The controller controls the first temperature sensor to measure the current ambient temperature;

[0131] Step S2c: The controller determines the heating time corresponding to the current ambient temperature based on the preset correspondence between ambient temperature and heating time, and determines the heating power corresponding to the current ambient temperature based on the preset correspondence between ambient temperature and heating power.

[0132] The heating time corresponding to the current ambient temperature is the time required for the heating device 10a to heat the filter component 2 to the preset temperature at the current ambient temperature. The heating power corresponding to the current ambient temperature is the heating power required for the heating device 10a to heat the filter component 2 to the preset temperature at the current ambient temperature.

[0133] The preset temperature is a set value, which can be set by the user or uniformly set by the coffee machine 100 before it leaves the factory. The range of the preset temperature can be, for example, 20℃~60℃.

[0134] The heating time and heating power required for the heating device 10a to heat the filter component 2 to a preset temperature under each ambient temperature can be pre-calibrated, and the correspondence between the ambient temperature and the heating time and heating power can be pre-stored in the controller. The controller can then determine the heating time and heating power corresponding to the current ambient temperature based on the current ambient temperature measured by the temperature sensor.

[0135] Step S2d: The controller controls the heating device 10a to heat the filter component 2 with a heating duration and / or heating power corresponding to the current ambient temperature so that the filter component 2 is heated to a preset temperature.

[0136] The heating device 10a is then driven with a heating power corresponding to the current ambient temperature, and the heating time of the heating device 10a is controlled to be the heating duration corresponding to the current ambient temperature. Thus, after the heating device 10a completes heating the filter component 2, the filter component 2 can reach the preset temperature. In this way, the controller can set the heating duration and heating power of the heating device 10a according to the ambient temperature measured by the temperature sensor, so that the heating device 10a heats the filter component 2 to the preset temperature.

[0137] When brewing coffee using the coffee machine 100, the heating device 10a is activated to heat the filter assembly 2 to a preset temperature. Coffee grounds are then added to the brewing chamber 211 of the filter assembly 2, and finally, the water infusion device 4 delivers brewing water into the brewing chamber 211 to extract the coffee. Because the filter assembly 2 is heated to the preset temperature before the brewing water is added, the temperature inside the brewing chamber 211 remains essentially the same each time coffee is brewed, regardless of the ambient temperature, thus ensuring consistent coffee quality.

[0138] In one illustrative embodiment, a gap is provided between the filter assembly 2 and the heating device 10a. The filter assembly 2 and the heating device 10a are spatially separated.

[0139] Heating device 10a is configured to output thermal radiation to filter assembly 2 to heat filter assembly 2. This thermal radiation can be visible light and / or infrared radiation. Heating device 10a includes an infrared heater or a heating wire. The infrared heater emits infrared radiation with a spectrum in the range of 0.7µm-80µm. Infrared emission and transmission are accompanied by significant, directional energy propagation; energy transfer does not require an exchange medium and can occur even in a vacuum. The advantages of infrared heating are: infrared radiation has penetrating power, enabling simultaneous internal and external heating; infrared radiation does not require a heat transfer medium, resulting in good thermal efficiency; infrared radiation can provide localized heating, saving energy; temperature control is easy, heating is rapid, and it is relatively safe. When the heating wire is powered on, its temperature rises to a certain level, emitting thermal radiation that is a mixture of visible and infrared radiation.

[0140] The heating device 10a emits heat radiation to the filter assembly 2, which can heat the filter assembly 2 insulated from the air. Since the filter assembly 2 often needs to be cleaned, separating the heating device 10a from the filter assembly 2 can prevent the heating device 10a from getting wet and causing a risk of electric leakage.

[0141] In one illustrative embodiment, the heating device 10a is disposed on the water injection device 4. In this embodiment, the water injection device 4 also includes a cover 444. The cover 444 is connected to the base 42. The cover 444 and the base 42 may be connected by a snap-fit ​​connection. The heating device 10a is connected to the cover 444. The heating device 10a and the cover 444 may be connected by a snap-fit, a fastener, an adhesive, or a screw.

[0142] Placing the heating device 10a on the water injection device 4 makes the coffee machine 100 more compact. Simultaneously, since the water injection device 4 is positioned above the filter assembly 2, the heating device 10a can deliver heat radiation from top to bottom to heat the brewing chamber 211 of the filter assembly 2, resulting in more uniform heating of the inner wall of the brewing chamber 211 and further improving the consistency of coffee quality.

[0143] In one illustrative embodiment, the water injection element 41 is arranged in annular shape. The annular groove 410 of the water injection element 41 is coaxially arranged with the water injection element 41. The axis of the water injection element 41 is vertically aligned. A vertically extending central channel is provided in the middle of the water injection element 41. A cover 444 covers the top of the central channel. A heating device 10a is disposed within the central channel of the water injection element 41 and connected to the cover 444. A through hole may be provided on the cover 444, through which the power cord of the heating device 10a can pass.

[0144] By placing the heating device 10a within the central channel of the water inlet 41, the coffee machine 100 becomes more compact. Simultaneously, with the heating device 10a located in the center of the water inlet 41, the heat radiation energy output by the heating element is absorbed by the filter element 2 as much as possible, improving heating efficiency.

[0145] In one illustrative embodiment, the inner wall of the filter funnel 21 of the filter assembly 2 is conical, the brewing chamber 211 is conical, the diameter of the brewing chamber 211 gradually decreases from top to bottom, and the diameter of the feed inlet 212 at the top of the brewing chamber 211 is larger.

[0146] The brewing chamber 211 of the filter assembly 2 is coaxially arranged with the water injection component 41. The heating component can directly irradiate the inner wall of the brewing chamber 211 to increase the temperature of the filter assembly 2. At the same time, the heating component can evenly heat all parts of the inner wall of the brewing chamber 211. The temperature difference between different parts of the heating component is small, which can further improve the consistency of coffee quality.

[0147] In another illustrative embodiment, such as Figure 11 As shown, the heating device 10b has a ring-shaped structure, which can be circular. The inner diameter of the heating device 10b is larger than the outer diameter of the water injection component 41. The heating device 10b surrounds the water injection component 41. The heating device 10b and the water injection component 41 are coaxially arranged. The heating device 10b can be fixed to the housing 1.

[0148] Thus, the heating device 10b is constructed as a ring structure surrounding the water injection component 41. The volume of the heating device 10b can be set to be larger, enabling it to heat the filter assembly 2 with greater power, resulting in faster heating of the filter assembly 2. In addition, the ring-shaped heating device 10b can heat the filter assembly 2 evenly when heating it.

[0149] In another illustrative embodiment, the coffee machine 100 further includes a heating element 10a and a second temperature sensor. A controller is electrically connected to the heating element 10a and the second temperature sensor. The heating element 10a heats the filter assembly 2. The heating element 10a converts electrical energy into heat energy to heat the filter assembly 2. The second temperature sensor detects the temperature of the filter assembly. The second temperature sensor may be disposed on the filter assembly 2.

[0150] The control method also includes step S2B, which is after step S2 and before step S3.

[0151] Step S2B: The controller controls the heating device 10a to heat the filter component 2, and proceeds to step S2C;

[0152] Step S2C: The controller controls the second temperature sensor to monitor the temperature of the filter component, and proceeds to step S2D;

[0153] Step S2D: The controller determines whether the temperature of the filter component is greater than or equal to the preset temperature. If so, proceed to step S2E; otherwise, proceed to step S2C.

[0154] Step S2E: The controller controls the heating device 10a to stop heating.

[0155] During the heating process of the heating device 10a heating the filter component 2, the second temperature sensor directly measures the temperature of the filter component. When the temperature of the filter component is greater than or equal to the preset temperature, it is considered that the temperature of the filter component has reached the preset temperature. At this time, there is no need to continue heating the filter component 2. The heating device 10a is controlled to stop heating so that the filter component 2 no longer heats up.

[0156] Since the filter component 2 is heated to a preset temperature before the brewing water is injected, the temperature inside the brewing chamber 211 can be kept basically the same every time coffee is brewed, regardless of the ambient temperature, thus ensuring that the quality of the final coffee is the same.

[0157] In one illustrative embodiment, such as Figure 1 , 7 As shown, the water supply assembly 6 also includes a water passage connection component 62. The water passage connection component 62 is rotatably connected to the base. The water passage connection component 62 is located at the bottom end of the column 11. The water passage connection component 62 can rotate about the axis of the column 11. The water passage connection component 62 is connected to the inlet of the water pump via a pipe.

[0158] Water tank 61 is also located on one side of column 11. The bottom of water tank 61 is connected to water connection component 62. The connection between water tank 61 and water connection component 62 can be a plug-in connection or a snap-fit ​​connection. The outlet of water tank 61 is located at the bottom of water tank 61 and is connected to water connection component 62. The outlet of water tank 61 can be connected to the inlet of water pump through water connection component 62.

[0159] In this way, the water tank 61 can rotate around the column 11 along with the water connection part, and the position of the water tank 61 can be adjusted according to the user's coffee machine 100 placement needs, resulting in a better user experience.

[0160] In one illustrative embodiment, the coffee bean supply assembly further includes a bean quantity detection device. The bean quantity detection device is used to detect the amount of coffee beans in the coffee bean hopper.

[0161] Step S2a includes steps S21a to S24a.

[0162] Step S21a: The controller detects the current amount of coffee beans in the coffee bean hopper using the bean quantity detection device;

[0163] Step S22a: The controller determines whether the current amount of coffee beans in the coffee bean hopper is greater than or equal to the preset bean amount threshold. If so, proceed to step S23a; otherwise, proceed to step S24a.

[0164] Step S23a: The controller drives the powder dispensing opening and closing mechanism 5 to open the powder dispensing port 511;

[0165] Step S24a: The controller sends a message indicating that coffee beans are out of stock.

[0166] The preset bean quantity threshold can be manually defined, and it must be greater than or equal to the amount of coffee beans required to make one cup of coffee. Before the bean dispensing mechanism 5 opens the bean dispensing port 511, it first checks the bean quantity in the coffee bean hopper. If the current bean quantity is greater than or equal to the preset bean quantity threshold, the coffee machine is considered to have enough coffee beans and can continue making coffee; therefore, the bean dispensing mechanism 5 can continue to open the bean dispensing port 511. If the current bean quantity is less than the preset bean quantity threshold, the coffee machine is considered to be short of coffee beans, coffee making is paused, and a message indicating a shortage of coffee beans is sent to the user, reminding them to replenish the coffee beans.

[0167] In one illustrative embodiment, step S3 includes steps S31 to S34.

[0168] Step S31: The controller detects the current amount of coffee beans in the coffee bean hopper using the bean quantity detection device;

[0169] Step S32: The controller determines whether the current amount of coffee beans in the coffee bean hopper is greater than or equal to the preset bean amount threshold. If so, proceed to step S33; otherwise, proceed to step S34.

[0170] Step S33: The controller drives the powder supply assembly 7 to deliver coffee powder to the powder inlet 511 of the machine body 101;

[0171] Step S34: The controller sends a message indicating that coffee beans are out of stock.

[0172] The preset bean quantity threshold can be manually defined, and it must be greater than or equal to the amount of coffee beans required to make one cup of coffee. Before the powder supply component 7 feeds coffee powder into the powder inlet 511 of the machine body 101, the amount of coffee beans in the bean hopper is checked. If the current bean quantity is greater than or equal to the preset bean quantity threshold, the coffee machine is considered to have enough coffee beans and can continue making coffee, so the powder supply component 7 can continue to feed coffee powder into the powder inlet 511 of the machine body 101. If the current bean quantity is less than the preset bean quantity threshold, the coffee machine is considered to be short of coffee beans, coffee making is paused, and a message indicating that coffee beans are low is sent to the user, reminding the user to replenish coffee beans.

[0173] Example 2

[0174] like Figures 12-16 As shown, Figures 12-16 The structure of a coffee machine 100 according to Embodiment 2 is shown. The main difference between the coffee machine 100b in Embodiment 2 and the coffee machine 100 in Embodiment 1 lies in the structure of the moving mechanism. To avoid redundancy, the differences between Embodiment 2 and Embodiment 1 will be mainly described below.

[0175] The coffee machine 100b includes a body 101b, a filter assembly 2b, and a moving mechanism 3b. The body 101b forms the main structure of the coffee machine 100b. The body 101b has a coffee grounds inlet 511b and a water inlet 411b. The coffee grounds inlet 511b dispenses coffee grounds. The water inlet 411b dispenses brewing water. The brewing water can be hot water or high-temperature steam. Both the coffee grounds inlet 511b and the water inlet 411b are located at a relatively high position on the body 101b. Both the coffee grounds inlet 511b and the water inlet 411b face downwards. The coffee grounds inlet 511b and the water inlet 411b are separated.

[0176] The filter assembly 2b includes a filter funnel 21b. A brewing chamber 211b is provided inside the filter funnel 21b. An inlet 212b is provided at the top of the brewing chamber 211b, facing upwards. An outlet 213b is provided at the bottom of the brewing chamber 211b, with the inlet 212b being larger than the outlet 213b. The height of the filter assembly 2b is less than the height of the water inlet 411b and the powder outlet 511b.

[0177] The moving mechanism 3b is connected to the body 101b and also to the filter assembly 2b. The moving mechanism 3b can drive the filter assembly 2b to move relative to the body 101b. The moving mechanism 3b can drive the filter assembly 2b to translate horizontally. Figure 13 , 14 As shown, the moving mechanism 3b can drive the filter assembly 2b to the powder receiving position. When the filter assembly 2b is in the powder receiving position, the feed inlet 212b of the filter assembly 2b is vertically aligned with the powder discharge outlet 511b on the machine body 101b. Figure 15 ,16 As shown, the moving mechanism 3b can also drive the filter assembly 2b to the water receiving position. When the filter assembly 2b is in the water receiving position, its inlet 212b is vertically aligned with the water inlet 411b on the machine body 101b, and the inlet 212b and the powder discharge outlet 511b of the machine body 101b are vertically offset, meaning the inlet 212b is not directly above the powder discharge outlet 511b. The moving mechanism 3b is configured to drive the filter assembly 2b to move between the powder receiving position and the water receiving position. For example, the moving mechanism 3b can drive the filter assembly 2b from the powder receiving position to the water receiving position, and the moving mechanism 3b can also drive the filter assembly 2b from the water receiving position to the powder receiving position.

[0178] Thus, when using the 100b coffee machine to brew coffee, such as Figure 13 , 14 As shown, the moving mechanism 3b first drives the filter assembly 2b to the powder receiving position so that the powder inlet 511b of the machine body 101b is aligned with the feed inlet 212b of the filter assembly 2b. The machine body 101b conveys coffee powder downwards through the powder inlet 511b, and the coffee powder falls into the feed inlet 212b of the filter assembly 2b and enters the brewing chamber 211b. After the machine body 101b has conveyed the coffee powder required to make one batch of coffee, as... Figure 13 , 14 As shown, the moving mechanism 3b then drives the filter assembly 2b to the water receiving position, aligning the water inlet 411b of the machine body 101b with the feed inlet 212b of the filter assembly 2b. The machine body 101b then delivers brewing water downwards through the water inlet 411b. The brewing water falls into the feed inlet 212b of the filter assembly 2b and enters the brewing chamber 211b, thus completing the extraction of coffee in the brewing chamber 211b. Furthermore, since the feed inlet 212b of the filter assembly 2b and the powder outlet 511b of the machine body 101b are vertically offset when the filter assembly 2b is in the water receiving position, i.e., the feed inlet 212b is not directly above the powder outlet 511b, the water vapor generated during the water injection process cannot enter the powder outlet 511b. The powder outlet 511b and the powder supply pipe 73b upstream of the powder outlet 511b can always remain dry, thus ensuring smooth powder dispensing and internal cleanliness of the powder supply pipe 73b.

[0179] Meanwhile, before the machine body 101b pours water into the brewing chamber 211b, the moving mechanism 3b can shake the coffee powder in the brewing chamber 211b by moving the filter component 2b back and forth to level the coffee powder. This makes the surface of the coffee powder smoother during the back and forth movement of the filter component 2b, and also makes the coffee powder more compact, which plays a certain role in tamping the powder and helps to improve the quality of coffee brewing.

[0180] In one illustrative embodiment, such as Figure 14 As shown, the machine body 101b includes a housing 1b, which forms the skeletal structure of the coffee machine 100b. The housing 1b includes a column 11b and a cantilever 12b. The column 11b can be constructed as a cylindrical hollow shell structure, extending vertically. The cantilever 12b is constructed as a straight, hollow shell structure. Alternatively, the cantilever 12b can be constructed as a strip-shaped hexahedral hollow shell structure. The cantilever 12b extends horizontally. One end of the cantilever 12b is connected to the upper end of the column 11b. The cantilever 12b includes a mounting plate 121b. The mounting plate 121b is located at the bottom of the cantilever 12b. The mounting plate 121b can be constructed as a horizontally positioned flat plate. Figure 16 As shown, a strip-shaped hole 1211b is provided on the mounting plate 121b. The strip-shaped hole 1211b penetrates through the mounting plate 121b. The cross-section of the strip-shaped hole 1211b is a straight strip. In this application, the cross-section of the strip-shaped hole 1211b refers to the cross-section of the strip-shaped hole 1211b perpendicular to its depth direction. The mounting plate 121b is located above the filter assembly 2b.

[0181] The moving mechanism 3b includes a slider 31b, a bracket 36b, and a drive mechanism 32b. The slider 31b is positioned above the mounting plate 121b, and may be positioned above the mounting hole. The slider 31b can slide along the upward-facing surface of the mounting plate 121b. The slider 31b may be constructed as a flat plate. The width of the slider 31b is greater than the width of the slot 1211b on the mounting plate 121b. The slider 31b cannot pass through the slot 1211b on the mounting plate 121b. The direction of movement of the filter assembly 2b is the same as the extension direction of the cross-section of the slot 1211b.

[0182] The bracket 36b is generally strip-shaped. It passes through the strip-shaped hole 1211b in the mounting plate 121b. One end of the bracket 36b is connected to the slider 31b, and the other end is connected to the filter assembly 2b. The bracket 36b supports the filter assembly 2b. A plug-in portion can be provided at the end of the bracket 36b facing away from the slider 31b; this plug-in portion can be constructed as a horizontal fork-shaped structure. The plug-in portion can be inserted into the bottom end of the filter funnel 21b of the filter assembly 2b. The plug-in portion and the filter assembly 2b are detachably connected, allowing for easy removal of the filter assembly 2b from the bracket 36b for cleaning, and also facilitating its installation back onto the bracket 36b.

[0183] The drive mechanism 32b is disposed within the cantilever 12b. The drive mechanism 32b drives the slider 31b to slide along the extension direction of the cross-section of the slot 1211b on the surface of the mounting plate 121b. When the drive mechanism 32b drives the slider 31b to slide along the extension direction of the cross-section of the slot 1211b, it can move the filter assembly 2b via the bracket 36b, thereby enabling the filter assembly 2b to move between the water receiving position and the powder receiving position.

[0184] In one illustrative embodiment, such as Figure 17 As shown, the drive mechanism 32b includes a first rack 321b, a first gear 322b, and a first motor 323b. The first rack 321b is connected to the slider 31b. The first rack 321b and the slider 31b can be integrally formed. The first rack 321b can be disposed on one side of the slider 31b. The extending direction of the first rack 321b is parallel to the extending direction of the cross-section of the strip hole 1211b. The teeth on the first rack 321b can be disposed on the upward-facing side of the first rack 321b. The first gear 322b meshes with the first rack 321b.

[0185] The first motor 323b is mounted on the cantilever 12b. The first motor 323b can be a DC motor or a stepper motor. The first motor 323b is connected to the housing 1b. The main shaft of the first motor 323b is perpendicular to the extension direction of the first rack 321b. The first gear 322b is sleeved on the main shaft of the first motor 323b and meshes with the first rack 321b.

[0186] The first motor 323b drives the first gear 322b to rotate. The first gear 322b can drive the first rack 321b to slide along the extension direction of the cross-section of the strip hole 1211b, thereby driving the bracket 36b and the filter assembly 2b to move. The first motor 323b can adjust the moving direction of the filter assembly 2b by changing the rotation direction of the first gear 322b.

[0187] In one illustrative embodiment, such as Figure 12 , 16 As shown, the coffee machine 100b also includes a base 8b and a coffee pot 9b. The bottom end of the upright 11b of the housing is connected to the base 8b. The base 8b is located below the cantilever 12b. A mounting groove 81b can be provided on the top surface of the base 8b.

[0188] The coffee pot 9b is placed on the mounting slot 81b of the base 8b. The top of the coffee pot 9b has a liquid inlet 91b. The coffee pot 9b is positioned below the water inlet.

[0189] The coffee pot 9b is configured such that when the filter assembly 2b is moved to the water receiving position, the liquid outlet 213b of the filter assembly 2b is connected to the liquid inlet 91b of the coffee pot 9b.

[0190] In this way, after the water is injected into the brewing chamber 211b through the water inlet 411b, the water extracts the coffee powder to form coffee liquid. The coffee liquid flows out from the outlet 213b of the filter component 2b and enters the coffee pot 9b, thereby realizing the automatic collection of coffee liquid into the coffee pot 9b.

[0191] In one illustrative embodiment, such as Figure 18 As shown, the coffee pot 9b is provided with a protrusion 92b. The protrusion 92b is located at the top of the coffee pot 9b and protrudes upward. The liquid inlet 91b of the coffee pot 9b may be located in the middle and bottom areas of the protrusion 92b, and vertically penetrates the protrusion 92b.

[0192] The filter assembly 2b also includes a normally closed valve 22b. The normally closed valve 22b is located at the outlet 213b. The normally closed valve 22b is used to open and close the outlet 213b. When the normally closed valve 22b is open, the outlet 213b is open; when the normally closed valve 22b is closed, the outlet 213b is closed. The normally closed valve 22b is naturally closed. The normally closed valve 22b is configured such that when the filter assembly 2b is in the water-receiving position, the protrusion 92b of the coffee pot 9b triggers the normally closed valve 22b to open the outlet 213b; when the filter assembly 2b is in a position other than the water-receiving position, the normally closed valve 22b closes to seal the outlet 213b.

[0193] In this way, before the filter assembly 2b moves to the water receiving position, the normally closed valve 22b is closed, and the outlet 213b is in a closed state, so the coffee powder in the filter assembly 2b will not spill out from the outlet 213b; after the filter assembly 2b moves to the water receiving position, the protrusion 92b triggers the normally closed valve 22b to open, the outlet 213b opens, and after water is poured into the brewing chamber 211b, the coffee can flow out of the brewing chamber 211b from the outlet 213b and enter the coffee pot 9b.

[0194] In one illustrative embodiment, the top of the protrusion 92b is provided with a first arc surface 921b, which arches upward.

[0195] The normally closed valve 22b includes a sliding element 221b, a sealing element 222b, and an elastic element (not shown in the figure). The sliding element 221b includes a sliding rod 2211b and a second limiting part 2212b. The sliding rod 2211b is constructed as a straight rod. The diameter of the sliding rod 2211b is smaller than the diameter of the outlet 213b. The sliding rod 2211b passes through the outlet 213b. The sliding rod 2211b can slide along the outlet 213b. One end of the sliding rod 2211b extends into the brewing chamber 211b, and the other end of the sliding rod 2211b extends out of the filter funnel 21b. The second limiting part 2212b is located outside the filter funnel 21b. The second limiting part 2212b extends radially outward from the end of the sliding rod 2211b facing away from the brewing chamber 211b. The second limiting part 2212b can be constructed as a generally disc-shaped part. The second limiting part 2212b has a second arc surface 22121b on its downward-facing side, and the second arc surface 22121b arches downward. The second limiting part 2212b cannot pass through the liquid outlet 213b.

[0196] The sealing member 222b may be a rubber member or a silicone member. The sealing member 222b is disposed in the brewing chamber 211b, and is connected to the end of the sliding rod 2211b that extends into the brewing chamber 211b. The sealing member 222b may be configured in an annular shape, and the sealing member 222b is sleeved on the sliding rod 2211b. The diameter of the sealing member 222b is larger than the diameter of the liquid outlet 213b, and the sealing member 222b can completely cover the liquid outlet 213b to seal the liquid outlet 213b.

[0197] The elastic member may be a spring or a rubber pad. The elastic member may be disposed between the second limiting portion 2212b and the bottom surface of the filter funnel. The elastic member is in a compressed state. The elastic member applies an elastic force toward the second limiting portion 2212b, and the direction of the elastic force is the direction away from the sealing member 222b. The elastic force applied by the elastic member to the second limiting portion 2212b can make the sealing member 222b move downward to seal the liquid outlet 213b.

[0198] During the process in which the filter assembly 2b moves toward the water receiving position, the first arc surface 921b of the protruding portion 92b presses the second arc surface 22121b of the second limiting portion 2212b to push the sliding member 221b into the brewing chamber 211b, so that the sealing member 222b moves away from the liquid outlet 213b, the liquid outlet 213b is opened, and coffee flows from the liquid outlet 213b into the coffee pot 9b. After the filter assembly 2b moves away from the water receiving position, the first arc surface 921b is separated from the second arc surface 22121b, and the sliding member 221b drives the sealing member 222b to move downward under the action of the elastic force to re-seal the liquid outlet 213b, preventing coffee and coffee grounds from spilling.

[0199] In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "square-shaped structure" and the like are based on the orientation or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred structure has a specific orientation, is constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0200] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "connected", "directly connected", "indirectly connected", "fixedly connected", "mounted", and "assembled" should be construed broadly, for example, it may be a fixed connection, a detachable connection, or an integral connection; the terms "mounted", "connected", and "fixedly connected" may be directly connected, or connected through an intermediate medium, or may be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

[0201] While the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and changes to the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection of this invention shall still be defined by the appended claims.

Claims

1. A control method for a coffee machine, characterized in that, The coffee machine includes a body with a powder inlet and a water inlet, a filter assembly, and a moving mechanism connecting the body and the filter assembly. The water inlet faces downwards, and the powder inlet and the water inlet have a preset distance in the horizontal direction. The filter assembly has a brewing chamber and a feed inlet located at the top of the brewing chamber. The minimum distance between the powder inlet and the water inlet is greater than the radius of the feed inlet. The body includes a powder supply assembly connected to the powder inlet and a water supply assembly connected to the water inlet. The moving mechanism can drive the filter assembly to move the powder receiving position corresponding to the feed inlet and the water receiving position corresponding to the water inlet. The control method includes: Upon receiving a start command, control the moving mechanism to drive the filter assembly to the powder receiving position; Drive the powder supply assembly to deliver coffee powder to the powder inlet, so that the coffee powder falls from the powder inlet into the feed inlet; The moving mechanism is controlled to drive the filter assembly to the water receiving position. When the filter assembly is in the water receiving position, the feed inlet and the powder discharge outlet are vertically offset from each other. The water injection assembly is driven to deliver brewing water to the water injection outlet so that the brewing water falls from the water injection outlet into the feed inlet.

2. The control method according to claim 1, characterized in that, Also includes: After the powder supply assembly is driven to deliver coffee powder to the powder outlet, and before the water inlet assembly is driven to deliver brewing water to the water inlet, the moving mechanism is controlled to move the filter assembly to level the coffee powder in the brewing chamber.

3. The control method according to claim 1, characterized in that, The machine body also includes a powder dispensing opening and closing mechanism, which is used to open and close the powder dispensing port; The control method further includes: Before the moving mechanism drives the filter assembly to the powder receiving position, the powder discharge opening and closing mechanism is driven to open the powder discharge port; and... After the powder supply assembly completes the delivery of coffee powder to the powder outlet, and before the water injection assembly begins to deliver brewing water to the water inlet, the powder dispensing opening and closing mechanism is driven to close the powder dispensing outlet.

4. The control method according to claim 1, characterized in that, The body also includes a water injection device, which includes a base, a water injection component rotatably connected to the base, and a first drive assembly for driving the water injection component to rotate. The water injection port is disposed on the water injection component and is offset from the rotation axis of the water injection component. The control method further includes: During the process of driving the water injection component to deliver brewing water to the water injection port, the first driving component is controlled to drive the water injection component to rotate.

5. The control method according to claim 1, characterized in that, The body also includes a heating device capable of heating the filter assembly; The control method further includes: Before driving the powder supply assembly to deliver coffee powder to the powder outlet or before driving the water injection assembly to start delivering brewing water to the water inlet, the heating device is controlled to heat the filter assembly to a preset temperature.

6. The control method according to claim 5, characterized in that, The fuselage also includes a first temperature sensor for detecting ambient temperature; The control of the heating device to heat the filter assembly to a preset temperature includes: The first temperature sensor measures the current ambient temperature; The heating time corresponding to the current ambient temperature is determined according to the preset correspondence between ambient temperature and heating time, and / or the heating power corresponding to the current ambient temperature is determined according to the preset correspondence between ambient temperature and heating power. The heating device is controlled to heat the filter assembly to the preset temperature by a heating duration and / or a heating power corresponding to the current ambient temperature.

7. The control method according to claim 5, characterized in that, The housing also includes a second temperature sensor for detecting the temperature of the filter assembly; The control of the heating device to heat the filter assembly to a preset temperature includes: The heating device is controlled to heat the filter assembly, and the temperature of the filter assembly is monitored by a second temperature sensor. When the temperature of the filter assembly reaches the preset temperature, the heating device is controlled to stop heating.

8. The control method according to claim 1, characterized in that, The control of the moving mechanism to drive the filter assembly to the powder receiving position includes: Determine whether the filter component is in the powder receiving position. If so, the moving mechanism does not move; otherwise, control the moving mechanism to drive the filter component to move to the powder receiving position.

9. The control method according to claim 1, characterized in that, The coffee machine also includes a coffee pot with a liquid inlet, and when the filter assembly is in the water receiving position, the liquid outlet is connected to the liquid inlet; The coffee machine also includes a heating module for heating the coffee pot; The control method further includes: After the water injection assembly is driven to deliver brewing water to the water inlet, the heating module is driven to heat the coffee pot to keep the coffee in the coffee pot warm.

10. The control method according to claim 1, characterized in that, The method of driving the powder supply assembly to deliver coffee powder to the powder inlet includes: The detection device measures the current amount of coffee beans in the coffee bean hopper; Based on the current bean quantity being greater than or equal to the preset bean quantity threshold, the powder supply component is driven to deliver coffee powder to the powder inlet of the machine body. If the current amount of coffee beans is less than the preset coffee bean threshold, a message indicating a shortage of coffee beans will be sent.

11. A coffee machine, characterized in that, include: The machine body is provided with a powder inlet and a water inlet, including a powder supply component connected to the powder inlet and a water supply component connected to the water inlet; The filter assembly is provided with a brewing chamber and a feed inlet located at the top of the brewing chamber; A moving mechanism, connected to the machine body and the filter assembly, is used to drive the filter assembly to move between the powder receiving position of the feed inlet corresponding to the powder discharge port and the water receiving position of the feed inlet corresponding to the water injection port. as well as, The control unit is electrically connected to the moving mechanism, the powder supply assembly, and the water supply assembly; The control unit is configured to perform the control method as described in any one of claims 1 to 10.

12. The coffee machine according to claim 11, characterized in that, The body includes a housing with a mounting plate, and the mounting plate has a first shaft hole; The moving mechanism includes: A turntable is positioned above the mounting plate; A rotating shaft passes through the first shaft hole, and the top end of the rotating shaft is connected to the turntable; A bracket is disposed below the mounting plate and connects the bottom end of the rotating shaft and the filter assembly; A drive mechanism is used to drive the turntable to rotate.

13. The coffee machine according to claim 12, characterized in that, The mounting plate is provided with a bearing seat; The moving mechanism also includes a bearing disposed within the bearing housing; The outer ring of the bearing is fixed on the bearing housing, and the inner ring of the bearing is fitted onto the rotating shaft.

14. The coffee machine according to claim 12, characterized in that, The edge of the turntable is provided with a plurality of teeth arranged sequentially along the circumference of the turntable; The drive mechanism includes a first gear meshing with the teeth and a first motor for driving the first gear to rotate.

15. The coffee machine according to claim 11, characterized in that, The body is provided with a mounting plate located above the filter assembly, and the mounting plate is provided with strip-shaped holes; The moving mechanism includes: A slider is positioned above the mounting plate; A bracket, passing through the strip-shaped hole, is connected at one end to the slider and at the other end to the filter assembly; and, A driving mechanism is provided for driving the slider to slide on the mounting plate along the extension direction of the cross-section of the strip hole.

16. The coffee machine according to claim 15, characterized in that, The driving mechanism includes a first rack connected to the slider, a first gear meshing with the first rack, and a first motor for driving the first gear to rotate. Wherein, the extending direction of the first rack is parallel to the extending direction of the cross-section of the strip hole.

17. The coffee machine according to claim 11, characterized in that, The minimum distance between the powder discharge port and the water injection port is greater than the radius of the feed inlet.

18. The coffee machine according to any one of claims 11 to 17, characterized in that, The coffee machine also includes a coffee pot, the top of which is provided with a liquid inlet; The bottom of the brewing chamber is provided with a liquid outlet, and when the filter assembly is in the water receiving position, the liquid outlet is connected to the liquid inlet.

19. The coffee machine according to claim 18, characterized in that, The top of the coffee pot is provided with a protrusion; The filter assembly also includes a normally closed valve disposed at the liquid outlet, the normally closed valve being used to open and close the liquid outlet. The normally closed valve is configured such that when the filter assembly is in the water receiving position, the protrusion triggers the normally closed valve to open the liquid outlet.

20. The coffee machine according to claim 19, characterized in that, The protrusion is provided with a first arc surface facing the arch; The normally closed valve includes: The sliding member includes a slide rod passing through the liquid outlet and a second limiting part extending radially outward from one end of the slide rod facing away from the brewing chamber. The second limiting part is provided with a second arc surface that arches downward. A sealing element is disposed within the brewing chamber and connected to one end of the slide rod that extends into the brewing chamber; and An elastic element is used to apply an elastic force to the second limiting portion in the opposite direction to the sealing element so that the sealing element blocks the liquid outlet; The first arc surface is configured to compress the second arc surface when the filter assembly moves toward the water receiving position, thereby pushing the slider into the brewing chamber and opening the liquid outlet.

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