Coffee grounds drying structure for coffee machine and coffee machine

Abstract

The utility model discloses a coffee grounds drying structure for a coffee machine, which comprises a grounds box (1) and is characterized by further comprising a heating device (2) which is arranged at the bottom of the grounds box (1) and used for heating the grounds box (1). An air channel is formed in the ventilation device (3), an inlet of the air channel directly faces the space above the slag box (1), an outlet of the air channel is communicated with the outside atmosphere, and the ventilation device (3) can convey airflow to the outlet from the inlet of the air channel. The utility model further discloses a coffee machine with the coffee residue drying structure. Compared with the prior art, the coffee grounds drying structure can prevent coffee grounds from mildewing and prevent water vapor from remaining in a machine.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a coffee grounds drying structure for a coffee machine and a coffee machine. Background Art

[0002] A coffee machine is a device that can automatically brew coffee and other beverages. Existing coffee machines include a bean bin, a grinding module, an extraction module, a grounds box, etc. For the specific structure, please refer to the Chinese patent application number CN202222922481.4 "A Coffee Machine".

[0003] After the coffee machine makes coffee, the coffee grounds will be stored in the grounds box. Since the coffee grounds contain a lot of water and nutrients, if the user does not clean them in time, they will soon become moldy and affect the user experience. At the same time, the large amount of water vapor in the machine will also hinder the drying of the coffee grounds and affect the life of the machine. Utility Model Content

[0004] The first technical problem to be solved by the utility model is to provide a coffee grounds drying structure for a coffee machine which can prevent the coffee grounds from getting moldy, in view of the current status of the prior art.

[0005] The second technical problem to be solved by the utility model is to provide a coffee grounds drying structure for a coffee machine which can avoid residual water vapor in the machine.

[0006] The third technical problem to be solved by the present invention is to provide a coffee machine using the above coffee grounds drying structure.

[0007] The utility model solves the above-mentioned first and second technical problems by adopting the following technical solutions: a coffee grounds drying structure for a coffee machine, comprising a grounds box, characterized in that:

[0008] a heating device, installed at the bottom of the slag box, for heating the slag box; and

[0009] The ventilation device has an air duct formed inside, the inlet of the air duct faces the space above the slag box, and the outlet of the air duct is connected to the outside atmosphere. The ventilation device can transport the air flow from the inlet to the outlet of the air duct.

[0010] In order to heat the slag box, at least a part of the slag box is a heat-conducting part, and the heating device includes a heat-conducting base installed at the bottom of the slag box and closely attached to the heat-conducting part; and

[0011] The heating film is attached to the bottom surface of the heat-conducting base.

[0012] In order to facilitate the temperature control of the heating film, the heating film is provided with a temperature control element, and the temperature control element is electrically connected to an external power supply through a wire.

[0013] In order to reduce heat dissipation to the outside while keeping warm and prevent users from being burned by direct contact with metal when taking the slag box, the slag box includes a heat-conducting box body and an insulating cylinder surrounding the heat-conducting box body. The bottom wall of the heat-conducting box body is exposed at the opening at the bottom end of the insulating cylinder to form the heat-conducting part.

[0014] In order to further prevent the user from being burned by direct contact with metal when picking up the box, the top end of the insulating cylinder has an edge, and the edge is wrapped around the periphery of the top of the heat-conducting box body.

[0015] In order to facilitate the processing of the edging, the peripheral edge of the top end of the insulating cylinder first extends inward and then downward to form the edging.

[0016] In order to facilitate the formation of the air duct, the ventilation device includes

[0017] A centrifugal fan having an air intake port and an air exhaust port, capable of sucking air from the air intake port and exhausting air through the air exhaust port, wherein the air intake port of the centrifugal fan is the entrance of the air duct; and

[0018] The air guide duct has an inlet connected to the exhaust port of the centrifugal fan, and an outlet of the air guide duct is an outlet of the air duct.

[0019] In order to facilitate connecting the air duct outlet to the outside atmosphere, the grounds box, heating device and ventilation device are all arranged in the box body of the coffee machine. The front side of the box body has a panel with an air outlet on the panel, and the outlet of the air duct is connected to the air outlet.

[0020] In order to automatically start and close the drying function, a humidity sensor is provided in the grounds box, and the coffee machine drying structure has a controller. The humidity sensor, heating device and ventilation device are all electrically connected to the controller, so that the controller can receive the signal collected by the humidity sensor and control the start and close of the heating device and the ventilation device.

[0021] The technical solution adopted by the utility model to solve the third technical problem is: a coffee machine, characterized in that it includes the above-mentioned coffee grounds drying structure.

[0022] Compared with the prior art, the advantages of the present invention are: the grounds box is heated by the heating device to dry the coffee grounds, and the water vapor generated during the operation of the coffee machine and the water vapor dried from the coffee grounds are discharged through the ventilation device. On the one hand, the coffee grounds can be dried to prevent it from getting moldy and affecting the user experience. On the other hand, a large amount of water vapor can be avoided in the machine to hinder the drying of the coffee grounds, thereby increasing the life of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a three-dimensional structural schematic diagram of an embodiment of the coffee machine of the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the coffee grounds drying structure (other parts of the coffee machine are omitted);

[0025] Figure 3 for Figure 2 Schematic diagram of the three-dimensional decomposition of

[0026] Figure 4 for Figure 2 Longitudinal section view of the slag box and heating device. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0029] like Figures 1 to 4 As shown in the figure, a preferred embodiment of the coffee machine of the utility model is shown. The coffee machine comprises a housing, a bean bin, a grinding module, an extraction module and a coffee grounds drying structure, and the bean bin, the grinding module, the extraction module and the coffee grounds drying structure are all located in the housing, and the coffee grounds drying structure comprises a grounds box 1, a heating device 2 and a ventilation device 3.

[0030] The front side of the box body has a panel 10 , and the panel 10 has an air outlet 101 .

[0031] The slag box 1 includes a heat-conducting box body 11 and an insulating cylinder 12 arranged around the outer periphery of the heat-conducting box body 11. Specifically, the bottom wall of the heat-conducting box body 11 is exposed to the opening at the bottom end of the insulating cylinder 12, and a humidity sensor (not shown in the figure) is arranged inside the heat-conducting box body 11; the peripheral edge of the top of the insulating cylinder 12 first extends inward and then downward to form a rim 121, and the rim 121 is wrapped around the peripheral edge of the top of the heat-conducting box body 11. In this embodiment, the heat-conducting box body 11 is made of metal material with good thermal conductivity; the insulating cylinder 12 is made of plastic, which has a heat-insulating function on the one hand, and can reduce heat dissipation to the outside on the other hand and prevent users from directly touching the metal and getting burned when taking it.

[0032] The heating device 2 includes a heat-conducting base 21 and a heating film 22. Specifically, the heat-conducting base 21 is plate-shaped, mounted on the bottom of the heat-conducting box body 11, and closely attached to the bottom wall of the heat-conducting box body 11; the heating film 22 is attached to the bottom surface of the heat-conducting base 21, and the heating film 22 has a temperature control element 221, which is electrically connected to an external power supply through a wire. In this embodiment, the heat-conducting base 21 is made of metal material.

[0033] An air duct is formed inside the ventilation device 3, the inlet of which faces the space above the slag box 1, and the outlet of which is connected to the above-mentioned air outlet 101. The ventilation device 3 can transport the airflow from the inlet of the air duct to the outlet. In this embodiment, the ventilation device 3 includes a centrifugal fan 31 and an air guide duct 32. Specifically, the centrifugal fan 31 has an air intake and an air outlet, and can inhale the airflow from the air intake and discharge it through the air outlet. The air intake of the centrifugal fan 31 is the inlet of the air duct; the air guide duct 32, the inlet of the air guide duct 32 is connected to the exhaust port of the centrifugal fan 31, and the outlet of the air guide duct 32 is the outlet of the air duct.

[0034] In addition, the coffee machine has a controller, and the humidity sensor, heating device 2 and ventilation device 3 are electrically connected to the controller, so that the controller can receive the signal collected by the humidity sensor and control the opening and closing of the heating device 2 and ventilation device 3.

[0035] The working principle of this embodiment is as follows: after the coffee machine makes a cup of coffee, the machine starts the drying program and energizes the temperature control element 221 to heat the heating film 22 to a fixed temperature. The heat is transferred to the heat-conducting box body 11 through the heat-conducting base 21, thereby drying the coffee grounds. At the same time, the centrifugal fan 31 is started to discharge the water vapor generated during the operation of the coffee machine and the water vapor dried from the coffee grounds to the outside of the box through the air duct 32; after each coffee is made, the heating device 2 and the ventilation device 3 continue to operate for 6 hours to dry the coffee grounds. The coffee grounds can also be considered dry when the humidity is less than 30%, and the drying program is stopped.

Claims

1. A coffee grounds drying structure for a coffee machine, comprising a grounds box (1), characterized in that: It also includes a heating device (2), which is installed at the bottom of the slag box (1) and is used to heat the slag box (1); and The ventilation device (3) has an air duct formed inside, the inlet of the air duct faces the space above the slag box (1), and the outlet of the air duct is connected to the outside atmosphere. The ventilation device (3) can transport airflow from the inlet to the outlet of the air duct.

2. The coffee grounds drying structure according to claim 1, characterized in that: The slag box (1) has at least a portion thereof as a heat conducting portion, and the heating device (2) comprises A heat-conducting base (21) is installed at the bottom of the slag box (1) and is closely attached to the heat-conducting part; as well as The heating film (22) is attached to the bottom surface of the heat-conducting base (21).

3. The coffee grounds drying structure according to claim 2, characterized in that: The heating film (22) is provided with a temperature control element (221), and the temperature control element (221) is electrically connected to an external power source via a wire.

4. The coffee grounds drying structure according to claim 2, characterized in that: The slag box (1) comprises a heat-conducting box body (11) and an insulating cylinder (12) arranged around the outer periphery of the heat-conducting box body (11); the bottom wall of the heat-conducting box body (11) is exposed at the opening at the bottom end of the insulating cylinder (12) to form the heat-conducting part.

5. The coffee grounds drying structure according to claim 4, characterized in that: The top end of the insulating cylinder (12) has an edge (121), and the edge (121) wraps around the periphery of the top of the heat-conducting box body (11).

6. The coffee grounds drying structure according to claim 5, characterized in that: The peripheral edge of the top end of the insulating cylinder (12) first extends inwards and then downwards to form the edge wrapping (121).

7. The coffee grounds drying structure according to claim 1, characterized in that: The ventilation device (3) comprises A centrifugal fan (31) has an air intake port and an air exhaust port, and can inhale air from the air intake port and exhaust air through the air exhaust port, wherein the air intake port of the centrifugal fan (31) is an entrance to the air duct; and An air guide duct (32), the inlet of which is connected to the exhaust port of the centrifugal fan (31), and the outlet of which is the outlet of the air duct.

8. The coffee grounds drying structure according to any one of claims 1 to 7, characterized in that: The grounds box (1), the heating device (2) and the ventilation device (3) are all arranged in a box body of the coffee machine. The front side of the box body is provided with a panel (10), and the panel (10) is provided with an air outlet (101). The outlet of the air duct is connected to the air outlet (101).

9. The coffee grounds drying structure according to any one of claims 1 to 7, characterized in that: The grounds box (1) is provided with a humidity sensor, the coffee machine drying structure has a controller, and the humidity sensor, the heating device (2) and the ventilation device (3) are all electrically connected to the controller, so that the controller can receive the signal collected by the humidity sensor and control the opening and closing of the heating device (2) and the ventilation device (3).

10. A coffee machine, characterized in that: The invention comprises the coffee grounds drying structure according to any one of claims 1 to 9.

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