Coffee bean grinding machine and control method thereof

Abstract

The invention provides a coffee bean grinding machine and a control method thereof, the coffee bean grinding machine comprises a power supply control module, a motor, a grinding shell and a grinding assembly arranged in the grinding shell, the grinding assembly comprises a first grinding cutter head and a second grinding cutter head, and first temperature sensors are arranged on the opposite faces of the first grinding cutter head and the second grinding cutter head; the first grinding cutterhead is fixedly arranged in the grinding shell, and an output shaft of the motor extends into the grinding shell and penetrates through the first grinding cutterhead to be fixedly connected with the second grinding cutterhead; a refrigeration assembly is tightly attached to the outer portion of the face, opposite to the first grinding cutterhead or the second grinding cutterhead, of the grinding shell. The power supply control module comprises a temperature and humidity sensor for acquiring the temperature and humidity in the external environment; the motor, the first temperature sensor and the refrigeration assembly are electrically connected with the power supply control module; the power supply control module is used for controlling the working state of the refrigeration assembly according to data of the temperature and humidity sensor and the first temperature sensor.

Description

Technical Field

[0001] This invention relates to the field of coffee grinder technology, specifically to a coffee bean grinder and its control method. Background Technology

[0002] Several coffee bean grinders have been developed in the prior art. For example, Chinese patent CN220459225U discloses "A coffee bean grinder assembly with a temperature control structure," which includes a motor, a support, and a grinding blade assembly. The support includes a cavity that runs through the center. The motor is mounted at the lower end of the support, and the output shaft of the motor extends into the cavity of the support. The grinding blade assembly is disposed in the cavity. The output shaft is connected to a lower grinding blade holder. An upper grinding blade holder is mounted on the upper end of the support, and the upper grinding blade holder is fixed to the support by a top cover. The lower half of the grinding blade assembly is fixedly mounted on the lower grinding blade holder and rotates with the rotation of the lower grinding blade holder. A temperature detection component is fixed on the side of the upper grinding blade holder that is in close contact with the grinding blade assembly. Multiple heat dissipation components are provided on the top of the grinding blade assembly.

[0003] Although a temperature detection component is fixed to the side of the upper grinding blade holder that is in close contact with the grinding blade assembly, and multiple heat dissipation components are provided on the top of the grinding blade assembly, the temperature detection component and multiple heat dissipation components are used to dissipate heat to avoid the grinding blade temperature from rising and the overall grinding performance from declining. However, the influence of the environment on grinding is not taken into account. In other words, current coffee bean grinders cannot adapt to different environments. Summary of the Invention

[0004] The technical problem to be solved by this invention is that coffee bean grinders cannot adapt to different environments.

[0005] The technical problem to be solved by this invention is, in part, the technical solution adopted is: A coffee bean grinder includes a power control module, a motor, a grinding housing, and a grinding assembly disposed within the grinding housing. The grinding assembly includes a first grinding disc and a second grinding disc. A first temperature sensor is disposed on the side of the first grinding disc opposite to the second grinding disc. The first grinding disc is fixedly disposed within the grinding housing. The output shaft of the motor extends into the grinding housing and passes through the first grinding disc, being fixedly connected to the second grinding disc. A cooling assembly is attached to the exterior of the side of the grinding housing opposite to either the first or second grinding disc. The power control module includes a temperature and humidity sensor for acquiring temperature and humidity from the external environment. The motor, the first temperature sensor, and the cooling assembly are all electrically connected to the power control module. The power control module controls the operating state of the cooling assembly based on data from the temperature and humidity sensor and the first temperature sensor.

[0006] In one embodiment, the motor is connected to a speed regulator for adjusting the motor speed.

[0007] In one embodiment, the grinding housing includes a conveying cavity and a grinding cavity communicating with the conveying cavity, the conveying cavity and the grinding cavity being perpendicular, and the first grinding disc and the second grinding disc being located within the grinding cavity.

[0008] In one embodiment, the output shaft of the motor is connected to a rotating shaft, which extends into the grinding housing and passes through the first grinding disc and is fixedly connected to the second grinding disc; a spiral conveying blade is sleeved on the rotating shaft in the conveying chamber; a feeding funnel is provided at the top of the grinding housing, which extends into the conveying chamber; and a discharge pipe is provided at the bottom of the grinding housing, which extends into the grinding chamber.

[0009] In one embodiment, a second temperature sensor is provided inside the discharge tube.

[0010] In one embodiment, the end of the discharge pipe away from the grinding housing is connected to a discharge bucket.

[0011] In one embodiment, the system further includes a support frame, with the motor mounted on top of the support frame; the power control module is mounted on the support frame.

[0012] In one embodiment, a grinding cover is also fitted onto the grinding housing, and a heat dissipation cavity is formed between the grinding cover and the grinding housing; heat dissipation fins are provided in the heat dissipation cavity; and the cooling component is located in the heat dissipation cavity.

[0013] In one embodiment, the grinding cover is provided with a second cooling fan that discharges heat from the heat dissipation cavity.

[0014] The technical problem to be solved by this invention, and the technical solution adopted in another aspect, is as follows: A method for controlling a coffee bean grinder includes the following coffee bean grinding process steps: The system collects humidity and temperature data from the external environment using a temperature and humidity sensor, and collects temperature data from the grinding chamber using a first temperature sensor. The system then adjusts the operating state of the cooling component based on the humidity and temperature data.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention comprises a power control module, a motor, a grinding housing, and a grinding assembly disposed within the grinding housing. The grinding assembly includes a first grinding disc and a second grinding disc. A first temperature sensor is disposed on the opposite side of the first and second grinding discs. The first grinding disc is fixedly disposed within the grinding housing. The output shaft of the motor extends into the grinding housing and passes through the first and second grinding discs, being fixedly connected to them. A cooling assembly is attached to the exterior of the grinding housing opposite to either the first or second grinding disc. The power control module includes a temperature and humidity sensor for acquiring the temperature and humidity of the external environment. The motor, the first temperature sensor, and the cooling assembly are all electrically connected to the power control module. The power control module controls the operating state of the cooling assembly based on the data from the temperature and humidity sensor and the first temperature sensor, thereby ensuring that coffee beans are ground within a preset temperature range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 For the present invention Figure 2 A schematic diagram of the cross-sectional structure of the grinding housing; Figure 4 For the present invention Figure 1 A schematic diagram of the grinding housing structure.

[0017] In the diagram: 100, power control module; 150, connector; 200, motor; 210, spiral conveyor blade; 260, rotating shaft; 300, grinding housing; 301, conveying chamber; 302, grinding chamber; 303, second temperature sensor; 305, cooling chip; 306, first cooling fan; 307, feed hopper; 308, discharge pipe; 310, first grinding cutter head; 320, second grinding cutter head; 311, first temperature sensor; 330, discharge hopper; 340, support frame; 400, grinding cover; 410, heat dissipation chamber; 420, heat dissipation fins; 430, second cooling fan. Detailed Implementation

[0018] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the coordinate system shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Example 1 like Figure 1-4 As shown, this embodiment includes a power control module 100, a motor 200, a grinding housing 300, and a grinding assembly disposed within the grinding housing 300. In this embodiment, the grinding housing 300 is fixed to the motor 200 via a connector 150, and the power control module 100 is electrically connected to the motor 200 to regulate the start / stop and speed of the motor.

[0025] In this embodiment, the motor 200 is connected to a speed regulator for adjusting the motor speed; the speed regulator is signal-connected to the power control module 100 and can adjust the operating speed of the motor 200 according to a preset program or external input command to achieve multi-speed switching.

[0026] The grinding assembly includes a first grinding disc 310 and a second grinding disc 320. The first grinding disc 310 is fixedly disposed inside the grinding housing 300. The output shaft of the motor 200 extends into the grinding housing 300 and passes through the first grinding disc 310 and is fixedly connected to the second grinding disc 320. The second grinding disc 320 rotates synchronously with the output shaft of the motor 200, and an annular grinding gap is formed between the first grinding disc 310 and the second grinding disc 320.

[0027] In this embodiment, the output shaft of the motor 200 is connected to a rotating shaft 260, which extends into the grinding housing 300 and passes through the first grinding disc 310 and is fixedly connected to the second grinding disc 320. The rotating shaft 260 and the second grinding disc 320 are detachably fixed by a threaded connection, facilitating disassembly and maintenance. The first grinding disc 310 and the second grinding disc 320 are provided with intermeshing grinding teeth on their opposite sides, which are spirally distributed to help guide the material towards the center and improve grinding efficiency. When the motor 200 starts, it drives the rotating shaft 260 and the second grinding disc 320 to rotate at high speed. The material is pulverized and refined by shearing and squeezing in the annular grinding gap and is finally discharged from the discharge port at the bottom of the grinding housing 300.

[0028] The grinding housing 300 includes a conveying cavity 301 and a grinding cavity 302 communicating with the conveying cavity 301. The conveying cavity 301 and the grinding cavity 302 are perpendicular to each other. The first grinding disc 310 and the second grinding disc 320 are located inside the grinding cavity 302.

[0029] In this embodiment, the second grinding disc 320 is rotatably mounted in the grinding chamber 302 via a bearing, and the first grinding disc 310 is fixed on the grinding chamber 302. The center of the first grinding disc 310 is provided with a through hole, which is connected to the conveying chamber 301, so that the material to be ground enters the annular grinding gap between the first grinding disc 310 and the second grinding disc 320 from the conveying chamber 301 through the through hole. As a result, the second grinding disc 320 rotates at high speed with the output shaft of the motor 200, causing the material to be evenly distributed in the grinding gap under the action of centrifugal force for fine grinding.

[0030] A first temperature sensor 311 is attached to the side of the first grinding disc 310 opposite to the second grinding disc 320. In this embodiment, the first temperature sensor 311 is disposed on the side wall of the grinding housing 300 facing the first grinding disc 310, and is used to monitor the temperature change in the grinding chamber 302 in real time through the first grinding disc 310, and transmit the temperature data to the power control module 100 in real time.

[0031] A cooling component is attached to the outside of the grinding housing 300 opposite to the first grinding disc 310 or the second grinding disc 320. In this embodiment, there are several cooling components, which are evenly attached to the outside of the grinding housing 300 opposite to the first grinding disc 310 or the second grinding disc 320.

[0032] The cooling component includes a cooling chip 305, one end of which is tightly fitted to the grinding housing 300 to conduct heat out of the grinding chamber 302; in this embodiment, the cooling chip 305 includes a semiconductor cooling chip.

[0033] The cooling chip 305 is provided with a first cooling fan 306; the first cooling fan 306 is located on the side of the cooling chip 305 away from the grinding housing 300, and is used to accelerate the heat dissipation on the cooling chip 305 to ensure that the cooling chip works continuously and efficiently.

[0034] The top of the grinding housing 300 is provided with a feeding funnel 307, which extends into the conveying chamber 301; thus, the coffee beans to be ground fall from the feeding funnel 307 into the conveying chamber 301.

[0035] A spiral conveying blade 210 is fitted onto the output shaft inside the conveying chamber 301. The spiral conveying blade 210 rotates synchronously with the output shaft of the motor 200, pushing coffee beans from the conveying chamber 301 toward the grinding chamber 302, ensuring that the material continuously and stably enters the annular grinding gap. Under the combined action of centrifugal force and spiral thrust, the coffee beans are evenly distributed between the first grinding disc 310 and the second grinding disc 320, achieving efficient and fine grinding.

[0036] The bottom of the grinding housing 300 is provided with a material discharge pipe 308, which extends into the grinding chamber 302. In this embodiment, the material discharge pipe 308 is located below the annular grinding gap formed between the first grinding disc 310 and the second grinding disc 320, so that the ground material can be smoothly discharged under the action of gravity.

[0037] The end of the discharge pipe 308 away from the grinding housing 300 is connected to the discharge bucket 330; thus, the ground material enters the discharge bucket 330 through the discharge pipe 308 and is finally collected in the discharge bucket 330; in this embodiment, the discharge bucket 330 adopts a detachable design, which makes it easy for users to pick up and clean, and improves the ease of use of the equipment.

[0038] A second temperature sensor 303 is installed inside the feed pipe 308 and is electrically connected to the power control module 100. In this embodiment, the second temperature sensor 303 is installed on the inner wall of the feed pipe 308 to monitor the temperature change of the material after grinding in real time and transmit the material temperature data to the power control module 100 in real time. The power control module dynamically adjusts the working status of the cooling component to ensure that the discharge temperature is within the ideal range and to avoid affecting the flavor and quality of the coffee powder due to high temperature.

[0039] In this embodiment, a support frame 340 is also included, with the motor 200 mounted on top of the support frame 340; the power control module 100 is mounted on the support frame 340; thus, the support frame 340 can effectively support the weight of the motor 200 and the power control module 100, avoiding component loosening or connection failure due to vibration during operation.

[0040] A grinding cover 400 is also fitted onto the grinding housing 300, and a heat dissipation cavity 410 is formed between the grinding cover 400 and the grinding housing 300. Heat dissipation fins 420 are provided inside the heat dissipation cavity 410. The cooling component is located inside the heat dissipation cavity 410. In this embodiment, there are at least two heat dissipation fins 420, which are evenly distributed on the heat-conducting end of the cooling component to increase the contact area with air and improve the heat conduction efficiency. The heat dissipation fins 420 are made of aluminum alloy material with high thermal conductivity, which further accelerates the transfer of heat from the cooling component to the air inside the heat dissipation cavity 410.

[0041] The grinding cover 400 is provided with a second cooling fan 430 to discharge the heat inside the heat dissipation cavity 410 out of the heat dissipation cavity 410; in this embodiment, there are at least two second cooling fans 430, and the two second cooling fans 430 can efficiently discharge the heat in the heat dissipation cavity 410 through the cooling plate 305 to the external environment quickly.

[0042] Thus, through the synergistic action of the first cooling fan 306 and the second cooling fan 430, a dual cooling airflow is formed, significantly improving the overall heat dissipation capacity of the machine. At the same time, the power control module 100 automatically adjusts the operating speed of the first cooling fan 306 and the second cooling fan 430 based on the temperature information collected in real time by the first temperature sensor 311, ensuring the temperature of the grinding chamber 302 remains stable while reducing energy consumption and noise, and extending the service life of the equipment.

[0043] Because existing coffee grinders cannot adjust the grinding temperature according to the temperature and humidity of different regions or seasons; when the grinder is turned on and the temperature inside is too high, the aroma and flavor of the coffee will be lost during the grinding process. Excessive heat can also cause the ground coffee to clump together, causing the grinder blades to jam. When the temperature inside the grinder is too low and the humidity is high, condensation or even ice formation will occur. The condensed water will mix with the coffee grounds, affecting the quality of the coffee and increasing the risk of spoilage due to excessive moisture.

[0044] This application includes a temperature and humidity sensor in the power control module 100 for acquiring temperature and humidity in the external environment; the motor 200, the first temperature sensor 311, and the refrigeration component are all electrically connected to the power control module 100; the power control module 100 is used to control the working state of the refrigeration component based on the data from the temperature and humidity sensor and the first temperature sensor 311.

[0045] In this embodiment, the motor 200, the first temperature sensor 311, the second temperature sensor 303, the cooling component, the heat sink 420, and the second cooling fan 430 are all electrically connected to the power control module 100. Thus, the temperature and humidity sensors are used to acquire temperature and humidity data from the external environment; the first temperature sensor 311 is used to acquire real-time temperature data within the grinding chamber 302, and the second temperature sensor 303 is used to acquire the temperature data of the coffee powder discharged after grinding; the power control module 100 intelligently adjusts the start / stop and power output of the cooling component based on the dynamic changes in external temperature and humidity data, the real-time temperature inside the grinding chamber 302, and the temperature of the coffee powder discharged after grinding, ensuring that the temperature inside the grinding chamber is always within the optimal range. In high-temperature and high-humidity environments, the system automatically enhances cooling and heat dissipation to prevent coffee powder from absorbing moisture and clumping. In low-temperature and dry conditions, the cooling intensity is appropriately reduced to avoid excessive cooling and condensation. At the same time, the power control module 100 adjusts the speed of the motor 200 based on real-time data. When the discharge temperature is too high and continues to rise, exceeding the heat dissipation load of the heat dissipation system (cooling components) in the current environment, the motor speed is reduced to slow down the grinding speed and reduce the heat generation power, thus preventing the material quality from deteriorating due to excessive temperature. This enables all-weather, all-region adaptive grinding operations.

[0046] Example 2 A method for controlling a coffee bean grinder includes the following coffee bean grinding process steps: The humidity and temperature of the external environment are collected by the temperature and humidity sensor to obtain temperature and humidity data, and the temperature inside the grinding chamber 302 is collected by the first temperature sensor 311 to obtain temperature data. The operating status of the refrigeration component is adjusted based on temperature and humidity data and temperature data.

[0047] In this embodiment, the step of adjusting the operating state of the cooling component based on temperature and humidity data and temperature data includes: S1, after the coffee bean grinder is started, the power control module 100 controls the motor 200 to start, and the temperature and humidity sensor collects the humidity and temperature of the external environment in real time and obtains temperature and humidity data; the first temperature sensor 311 collects the temperature inside the grinding chamber 302 and obtains temperature data; the second temperature sensor 303 collects the temperature data of the coffee powder discharged after grinding. S2, the power control module 100 receives temperature and humidity data, grinding chamber temperature and coffee powder discharge temperature, and performs multi-dimensional data analysis. When the ambient temperature is low and the humidity is too high, the power control module 100 automatically increases the operating power of the cooling components and starts the second cooling fan 430 to accelerate heat dissipation and inhibit the coffee powder from absorbing moisture. When the ambient temperature is high and the humidity is low, the power control module 100 increases the output power of the cooling component to quickly reduce the temperature inside the grinding chamber and prevent the coffee powder from releasing oils and losing aroma due to high temperature. When the ambient temperature and humidity are within a suitable range, the power control module 100 dynamically matches the optimal operating parameters of the cooling component to maintain a constant and stable temperature in the grinding chamber. At the same time, combined with the intelligent adjustment of the motor speed 200, it ensures a balance between heat generation and heat dissipation during the grinding process and avoids the coffee powder from heating up too quickly. When the second temperature sensor 303 detects that the temperature of the ground coffee powder discharged is too high, the power control module 100 immediately adjusts the operating parameters of the cooling component to enhance cooling efficiency, and coordinates the first cooling fan 306 and the second cooling fan 430 to work together to accelerate the heat exchange inside and outside the grinding chamber; at the same time, it reduces the speed of the motor 200 to reduce frictional heat generation, prevents the coffee powder from deteriorating in flavor due to instantaneous high temperature, and ensures that the discharge temperature quickly drops back to the ideal range; When the second temperature sensor 303 detects that the temperature of the ground coffee powder discharged is too low, the power control module 100 automatically reduces the operating power of the cooling component and slows down the speed of the first and second cooling fans to avoid excessive cooling that could cause the coffee powder to condense and become damp. At the same time, the speed of the motor 200 is moderately increased to compensate for the low temperature environment by using the frictional heat from grinding, thus maintaining the coffee powder in a dry and loose state.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A coffee bean grinder characterized by: The application relates to a coffee grinder, which comprises a power control module (100), a motor (200), a grinding shell (300), a grinding assembly arranged in the grinding shell (300), wherein the grinding assembly comprises a first grinding disc (310) and a second grinding disc (320), and a first temperature sensor (311) is arranged on the side of the first grinding disc (310) opposite to the second grinding disc (320). The first grinding disc (310) is fixedly arranged in the grinding shell (300), and the output shaft of the motor (200) extends into the grinding shell (300) and is fixedly connected with the first grinding disc (310) and the second grinding disc (320). The side of the grinding shell (300) opposite to the first grinding disc (310) or the second grinding disc (320) is tightly attached with a refrigeration assembly. The power control module (100) comprises a temperature and humidity sensor for acquiring the temperature and humidity in the external environment; the motor (200), the first temperature sensor (311) and the refrigeration assembly are electrically connected with the power control module (100); and the power control module (100) is used for controlling the working state of the refrigeration assembly according to the data of the temperature and humidity sensor and the first temperature sensor (311).

2. The coffee bean grinder of claim 1, wherein: The motor (200) is connected with a speed regulator for regulating the rotating speed of the motor.

3. The coffee bean grinder of claim 2, wherein: The grinding shell (300) comprises a conveying cavity (301) and a grinding cavity (302) communicated with the conveying cavity (301), and the conveying cavity (301) and the grinding cavity (302) are perpendicular, and the first grinding disc (310) and the second grinding disc (320) are located in the grinding cavity (302).

4. The coffee bean grinder of claim 3, wherein: The output shaft of the motor (200) is connected with a rotating shaft (260), the rotating shaft (260) extends into the grinding shell (300) and is fixedly connected with the first grinding disc (310) and the second grinding disc (320); a spiral conveying blade (210) is arranged on the rotating shaft (260) in the conveying cavity (301); a feeding funnel (307) is arranged at the top of the grinding shell (300) and extends into the conveying cavity (301); and a discharging pipe (308) is arranged at the bottom of the grinding shell (300) and extends into the grinding cavity (302).

5. The coffee bean grinder of claim 4, wherein: A second temperature sensor (303) is arranged in the discharging pipe (308).

6. The coffee bean grinder of claim 5, wherein: The end of the discharging pipe (308) away from the grinding shell (300) is communicated with a discharging barrel (330).

7. The coffee bean grinder of claim 6, wherein: The application further comprises a support frame (340), the motor (200) is arranged at the top of the support frame (340), and the power control module (100) is arranged on the support frame (340).

8. The coffee bean grinder of claim 1, wherein: The grinding shell (300) is further sleeved with a grinding cover (400), and a heat dissipation cavity (410) is formed between the grinding cover (400) and the grinding shell (300); the heat dissipation cavity (410) is provided with heat dissipation fins (420); and the refrigeration assembly is located in the heat dissipation cavity (410).

9. The coffee bean grinder of claim 8, wherein: The grinding cover (400) is provided with a second heat dissipation fan (430) for discharging heat in the heat dissipation cavity (410) out of the heat dissipation cavity (410).

10. A control method for a coffee bean grinder according to any one of claims 1-9, characterized in that, The coffee bean grinding process comprises the following steps: The humidity and temperature in the external environment are collected by a temperature and humidity sensor to obtain temperature and humidity data, and the temperature in the grinding cavity (302) is collected by a first temperature sensor (311) to obtain temperature data; The working state of the refrigeration assembly is adjusted according to the temperature and humidity data and the temperature data.

Images