A coffee brewing device and coffee machine

Abstract

This utility model provides a coffee brewing device and coffee machine, belonging to the field of coffee machine technology. The coffee brewing device includes a support, a brewing head, a brewing cup, a power mechanism, a Hall element, and a controller. The power mechanism and brewing head are respectively fixed on the support, which is equipped with a guide rail and a balancing rib. The brewing cup is equipped with a guide rod and a balancing component. The guide rod is slidably connected to the guide rail, and the balancing component cooperates with the balancing rib to limit the brewing cup from tilting away from the guide rod. The power mechanism includes a drive motor and a transmission mechanism. The transmission mechanism is connected to the guide rod, and the drive motor can drive the guide rod to move along the guide rail through the transmission mechanism. The Hall element is located on the drive motor and is used to detect the speed of the drive motor. The controller is electrically connected to both the Hall element and the drive motor. This coffee brewing device maintains a constant tamping force on the coffee powder during tamping, thereby achieving a better and more stable coffee extraction effect.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machine technology, and in particular relates to a coffee brewing device and a coffee machine. Background Technology

[0002] Currently, fully automatic coffee machines on the market have small brewing chambers that can only hold a maximum of 12g of coffee grounds. During brewing, the brewing head, driven by a plastic screw and other transmission components, continuously approaches the brewing chamber, then pushes a certain distance within the chamber to compact the coffee grounds. For example, Chinese patent CN220967090U discloses a coffee brewing system, which includes a support, a brewing chamber mounted on the support, and a brewing base. The brewing base is located above the brewing chamber, which can move upwards relative to the support, allowing the brewing base to extend into the brewing chamber and approach its bottom to compact the coffee grounds. However, during the compaction process, the brewing cup is prone to slight tilting, causing uneven stress on the coffee grounds and resulting in an uneven thickness of the coffee cake, thus affecting the brewing effect. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a coffee brewing device and coffee machine. This coffee brewing device maintains a constant tamping force on the coffee grounds during tamping, thereby achieving a better and more stable coffee extraction effect.

[0004] The technical solution adopted in this embodiment of the utility model is:

[0005] A coffee brewing device includes a stand, a brewing head, a brewing cup, a power mechanism, a Hall element, and a controller;

[0006] The power mechanism and the brewing head are respectively fixed on the bracket, which is provided with guide rails and balancing ribs;

[0007] The brewing cup is provided with a guide rod and a balance component. The guide rod is slidably connected to the guide rail, and the balance component cooperates with the balance rib to limit the brewing cup from tilting away from the guide rod when subjected to the squeezing force of the brewing head.

[0008] The power mechanism includes a drive motor and a transmission mechanism. The transmission mechanism connects the motor shaft of the drive motor and the guide rod. The drive motor can drive the guide rod to move along the guide rail through the transmission mechanism, so that the brewing head extends into the brewing cup to extrude coffee powder.

[0009] The Hall element is mounted on the drive motor and is used to detect the rotational speed of the drive motor. The controller is electrically connected to both the Hall element and the drive motor.

[0010] In some embodiments, the balancer is located on the side of the brewing cup opposite to the guide rod.

[0011] In some embodiments, the balancing member has a groove, the balancing rib extends in the same direction as the guide rail, and the balancing rib is slidably connected to the groove. This structure is simple and easy to implement.

[0012] In some embodiments, the support is further provided with a balance rail, the extension direction of which is consistent with the extension direction of the guide rail;

[0013] The balancing ribs are multiple in number, with the groove located on one of the balancing components, and the remaining balancing components moving along the balancing tracks. By having multiple balancing components engage with the balancing tracks, the brewing cup can be prevented from tipping over during movement.

[0014] In some embodiments, the balancing member is a cylindrical rod, and the groove is provided on the outer peripheral wall of the balancing member.

[0015] In some embodiments, the remaining balancing component is provided with a bushing that cooperates with the balancing track. The bushing rolls along the balancing track, which can reduce the friction between the balancing component and the balancing track.

[0016] In some embodiments, the brewing head is provided with guide ribs. During the process of the brewing head extending into the brewing cup, the guide ribs can cooperate with the inner wall of the brewing cup to limit the shaking of the brewing cup.

[0017] In some embodiments, the guide ribs are disposed on the outer periphery of the brewing head, and the guide ribs can abut against the inner wall of the brewing cup during the process of the brewing head extending into the brewing cup.

[0018] In some embodiments, the balancing ligaments and the support structure are an integral part of each other. This structure can improve the stability of the balancing ligaments.

[0019] A coffee machine comprising a coffee brewing device as described in any of the above embodiments.

[0020] Compared with the prior art, the beneficial effects of the embodiments of this utility model are as follows:

[0021] In this embodiment of the coffee brewing device, the balance component works in conjunction with the balance rib to limit the brewing cup from tilting to the side away from the guide rod, thus avoiding unbalanced force. Then, the Hall element controls the operation of the drive motor according to the speed of the drive motor, thereby adjusting the tamping force applied by the brewing head. Through the combined action of the Hall element and the balance component, the tamping force of the brewing head during tamping is stabilized, so that the coffee powder is subjected to uniform force, thereby achieving a better and more stable coffee extraction effect.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0023] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0024] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts.

[0025] Figure 1 This is a schematic diagram of the structure of the coffee brewing device according to an embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of the coffee brewing device according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the brewing cup according to an embodiment of the present invention;

[0028] Figure 4 This is a partial cross-sectional view of the coffee brewing device according to an embodiment of the present invention.

[0029] In the diagram: 1. Frame; 11. Balanced musculoskeletal system; 12. Guide track;

[0030] 2. Brewing head; 21. Guide ribs;

[0031] 3. Brewing cup; 31. Guide rod; 32. Balance component; 33. Groove;

[0032] 4. Power mechanism; 41. Drive motor; 42. Push rod; 43. Screw;

[0033] 5. Hall element. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0036] like Figures 1 to 3 As shown in the figure, this utility model embodiment provides a coffee brewing device, which mainly includes a support 1, a brewing head 2, a brewing cup 3, a power mechanism 4, a Hall element 5, and a controller.

[0037] The power mechanism 4 and the brewing head 2 are respectively fixed on the bracket 1, and the bracket 1 is provided with a guide rail 12 and a balancing rib 11.

[0038] The brewing cup 3 is used to hold coffee powder. The brewing cup 3 is equipped with a guide rod 31 and a balancer 32. The guide rod 31 is slidably connected to the guide rail 12, and the balancer 32 cooperates with the balancer rib 11. When the brewing cup 3 moves upward along the guide rail 12, the brewing head 2 extends into the interior of the brewing cup 3 and approaches the bottom of the cup to squeeze the coffee powder. When the brewing cup 3 moves downward along the guide rail 12, the brewing head 2 moves away from the bottom of the cup and is removed from the brewing cup 3.

[0039] When the brewing head 2 squeezes coffee powder, the brewing cup 3 will tilt slightly on the side away from the guide rod 31, relying only on the cooperation of the guide rod 31 and the guide rail 12. However, by cooperating with the balance member 32 and the balance rib 11, the brewing cup 3 can be restricted from tilting on the side away from the guide rod 31 under the squeezing force of the brewing head 2, so as to avoid the brewing head 2 being subjected to unbalanced force.

[0040] The power mechanism 4 includes a drive motor 41 and a transmission mechanism connected to the motor shaft of the drive motor 41. The transmission mechanism is connected to the guide rod 31. The drive motor 41 can drive the guide rod 31 to move along the guide rail 12 through the transmission mechanism so that the brewing head 2 extends into the brewing cup 3 to squeeze the coffee powder.

[0041] Hall element 5 is mounted on drive motor 41 to detect the rotational speed of drive motor 41. The controller is electrically connected to both Hall element 5 and drive motor 41. Hall element 5 can control the operation of drive motor 41 by changing the rotational speed of drive motor 41, thereby controlling the pressing force during the pressing process and ensuring stable pressing force.

[0042] For example, the Hall element 5 monitors the rotation speed of the drive motor 41 at all times. When the brewing head 2 presses the coffee powder in the brewing cup 3, the coffee powder hinders the movement of the brewing cup 3, and the rotation speed of the drive motor 41 will decrease. The signal of the decrease in rotation speed is fed back to the Hall element 5, and the Hall element 5 controls the drive motor 41 to stop through the program. When the amount of coffee powder changes, the tamping stroke of the brewing cup 3 will also change under the regulation of the Hall element 5. The tamping force during the tamping process is controlled by detecting the rotation speed of the drive motor 41 through the Hall element 5.

[0043] The coffee brewing device in this embodiment stabilizes the tamping force of the brewing head 2 when tamping coffee powder through the combined action of Hall element 5 and balance component 32, so that the coffee powder is subjected to uniform force, thereby achieving a better and more stable coffee extraction effect.

[0044] like Figure 1 As shown, in some embodiments, the transmission mechanism may include a screw 43 and a push rod 42 threadedly connected to the screw 43.

[0045] The screw 43 is mounted on the bracket 1. The motor shaft of the drive motor 41 can be connected to one end of the screw 43 via a gear mechanism to drive the screw 43 to rotate. The Hall element 5 can be mounted at the tail of the drive motor 41. The push rod 42 is connected to the guide rod 31. When the screw 43 rotates, the push rod 42 moves along the screw 43, thereby driving the guide rod 31 of the brewing cup 3 to move along the guide rail 12.

[0046] like Figure 3 As shown, in some embodiments, the balancer 32 may be located on the side of the brewing cup 3 opposite to the guide rod 31.

[0047] like Figure 1 and Figure 3 In some embodiments, a groove 33 may be provided on the balance member 32, which can cooperate with the balance rib 11.

[0048] The balancing rib 11 extends in the same direction as the guide rail 12. The balancing rib 11 is locked in the groove 33 of the balancing component 32 and is slidably connected to the groove 33.

[0049] As the brewing cup 3 moves along the guide rail 12, the balancer 32 also slides along the balance rib 11. Since the balance rib 11 is parallel to the guide rail 12, when the coffee powder in the brewing cup 3 is subjected to the squeezing force from the brewing head 2, causing the brewing cup 3 to tilt to one side of the balancer 32, the balance rib 11 applies a counterforce to the balancer 32, thereby stabilizing the brewing cup 3 and ensuring that the coffee powder is evenly stressed.

[0050] Regarding the shape of the balancing component 32, this embodiment does not specifically limit it. For example, as... Figure 3 As shown, the balancer 32 can be a cylindrical rod structure, which is parallel to the guide rod 31, and the groove 33 can be provided on the outer periphery of the balancer 32.

[0051] Correspondingly, the balancing rib 11 can be an integral structure with the support 1, forming part of the support 1, thereby ensuring the stability of the balancing rib 11. Alternatively, the balancing rib 11 and the support 1 can be detachably connected, for example, the balancing rib 11 and the support 1 can be connected by bolts, thereby facilitating the replacement and maintenance of the balancing rib 11.

[0052] In some embodiments, the support 1 may also be provided with a balance track (not shown in the figure), the extension direction of the balance track is consistent with the extension direction of the guide track 12, the balance track and the guide track 12 are arranged opposite to each other, and the brewing cup 3 moves between the two.

[0053] There are multiple balancing ribs 11, and at least one of the multiple balancing components 32 is provided with a groove 33 that cooperates with the balancing rib 11. The remaining balancing components 32 all move along the balancing track.

[0054] For example, such as Figure 3 As shown, there can be three balancing components 32. The three balancing components 32 can be arranged in a triangular array. By having these three balancing components 32 cooperate with the balancing track, the brewing cup 3 can be prevented from flipping during its movement.

[0055] Two of the three balancing components 32 can be located at the mouth of the brewing cup 3, and the other balancing component 32 can be located at the bottom of the brewing cup 3. The balancing component 32 located at the bottom of the brewing cup 3 has a groove 33 that cooperates with the balancing rib 11.

[0056] In some embodiments, a bushing (not shown in the figure) may be provided at the end of the balance member 32 that cooperates with the balance track. The bushing can roll on the balance track and reduce the friction between the balance member 32 and the balance track, thereby preventing jamming during the movement of the brewing cup 3.

[0057] When there is little coffee grounds in brewing cup 3, the stroke of brewing cup 3 will increase if brewing head 2 is needed to expel these small amounts of coffee grounds. Therefore, as Figure 4 As shown, in some embodiments, a guide rib 21 may be provided on the brewing head 2 of the support 1. When the brewing head 2 is inserted into the brewing cup 3 to squeeze the coffee powder, the guide rib 21 can cooperate with the inner wall of the brewing cup 3 to limit the shaking of the brewing cup 3.

[0058] In some embodiments, the guide rib 21 can be disposed on the outer periphery of the brewing head 2. During the process of the brewing head 2 extending into the brewing cup 3, the guide rib 21 can abut against the inner wall of the brewing cup 3, thereby stabilizing the brewing cup 3.

[0059] The guide rib 21 can be made of a flexible material, such as rubber, to avoid hard contact with the brewing cup 3, thereby protecting the brewing cup 3.

[0060] The guide ribs 21 can be block-shaped structures, and there are multiple guide ribs 21 arranged at intervals around the brewing head 2.

[0061] This utility model embodiment also provides a coffee machine, which includes a coffee brewing device as described in any of the above embodiments.

[0062] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A coffee brewing device, characterized in that, Includes a support (1), a brewing head (2), a brewing cup (3), a power mechanism (4), a Hall element (5), and a controller; The power mechanism (4) and the brewing head (2) are respectively fixed on the bracket (1), and the bracket (1) is provided with a guide rail (12) and a balancing rib (11); The brewing cup (3) is provided with a guide rod (31) and a balancer (32). The guide rod (31) is slidably connected to the guide rail (12). The balancer (32) cooperates with the balance rib (11) to limit the brewing cup (3) from tilting away from the guide rod (31) when subjected to the squeezing force of the brewing head (2). The power mechanism (4) includes a drive motor (41) and a transmission mechanism. The transmission mechanism connects the motor shaft of the drive motor (41) and the guide rod (31). The drive motor (41) can drive the guide rod (31) to move along the guide rail (12) through the transmission mechanism so that the brewing head (2) extends into the brewing cup (3) to squeeze the coffee powder. The Hall element (5) is disposed on the drive motor (41) and is used to detect the rotational speed of the drive motor (41). The controller is electrically connected to the Hall element (5) and the drive motor (41) respectively.

2. The coffee brewing device as described in claim 1, characterized in that, The balancer (32) is located on the side of the brewing cup (3) away from the guide rod (31).

3. The coffee brewing device as described in claim 1, characterized in that, The balancing component (32) is provided with a groove (33), the extension direction of the balancing rib (11) is consistent with the guide rail (12), and the balancing rib (11) is slidably connected to the groove (33).

4. A coffee brewing device as described in claim 3, characterized in that, The support (1) is also provided with a balance track, and the extension direction of the balance track is consistent with the extension direction of the guide track (12). The number of the balancing ribs (11) is multiple, the groove (33) is set on one of the balancing components (32), and the remaining balancing components (32) move along the balancing track respectively.

5. A coffee brewing device as described in claim 4, characterized in that, The balancing component (32) is a cylindrical rod, and the groove (33) is provided on the outer peripheral wall of the balancing component (32).

6. A coffee brewing device as described in claim 4, characterized in that, The remaining balancing component (32) is provided with a bushing that mates with the balancing track.

7. A coffee brewing device as described in claim 1, characterized in that, The brewing head (2) is provided with guide ribs (21). During the process of the brewing head (2) being inserted into the brewing cup (3), the guide ribs (21) can cooperate with the inner wall of the brewing cup (3) to limit the shaking of the brewing cup (3).

8. A coffee brewing device as described in claim 7, characterized in that, The guide rib (21) is disposed on the outer periphery of the brewing head (2). During the process of the brewing head (2) extending into the brewing cup (3), the guide rib (21) can abut against the inner wall of the brewing cup (3).

9. A coffee brewing device as described in claim 1, characterized in that, The balancing ligament (11) and the support (1) are an integral structure.

10. A coffee machine, characterized in that, The coffee brewing device includes any one of claims 1-9.

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