Ice making device

Abstract

The embodiment of the utility model discloses an ice making device which comprises a containing groove used for containing liquid, a first temperature sensor is arranged in the containing groove, and the first temperature sensor is used for collecting the temperature of the liquid in the containing groove; the evaporator is used for exchanging heat with the liquid in the accommodating groove; and the compressor is connected with the evaporator to form a refrigerating loop, and the operation duration of the compressor changes along with the size of the made ice blocks and the temperature of the liquid in the containing groove. The first temperature sensor and the compressor are arranged, the first temperature sensor is used for obtaining the temperature of liquid in the containing groove during ice making, the compressor makes ice on the liquid in the containing groove at the position of the evaporator through the refrigerating circuit, and a user can set the size of ice cubes needed by the user. The ice making device starts and stops the compressor in a self-adaptive mode based on the collected temperature of the liquid and the set ice block size, the situation that the ice block cannot meet the use requirement due to the fact that the ice making time is too short or too long is avoided, and the uniformity of the size of the ice block is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ice making, in particular to an ice making device. Background Art

[0002] Existing household ice-making devices generally control the time interval of ice-making and ice-removing by the start-up and operation time of the compressor refrigeration system. During the ice-making process, by controlling the start and stop of the compressor and the ice-making time of the evaporator, when the water temperature is relatively high, the weight of the ice cubes produced is relatively light and cannot meet the use requirements; when the water temperature is relatively low, the ice-making speed is relatively fast, and the ice cubes continue to be refrigerated after being formed, causing the ice cubes to stick to each other and cannot be separated quickly and stably, affecting the user experience. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art and to provide an ice-making device, wherein the operation time of the compressor is determined by the water temperature and the target size of the ice cubes, so as to accurately control the size of the ice cubes and ensure the uniformity of the size of the ice cubes.

[0004] The present invention provides an ice-making device, comprising:

[0005] A containing tank, used for containing liquid, wherein a first temperature sensor is provided in the containing tank, and the first temperature sensor is used for collecting the temperature of the liquid in the containing tank;

[0006] an evaporator, used for exchanging heat with the liquid in the containing tank;

[0007] A compressor is connected to the evaporator to form a refrigeration circuit, and the running time of the compressor varies with the size of the ice cubes produced and the temperature of the liquid in the containing tank.

[0008] The ice-making device provided according to the embodiment of the utility model has at least the following beneficial effects: the ice-making device of the embodiment of the present application is provided with a first temperature sensor and a compressor, the first temperature sensor is used to obtain the temperature of the liquid in the containing tank during ice making, the compressor makes ice on the liquid in the containing tank at the evaporator through the refrigeration circuit, and the user can set the size of ice cubes required by the user, and the ice-making device adaptively starts and stops the compressor based on the collected liquid temperature and the set ice cube size, thereby avoiding the situation where the ice cubes cannot meet the usage requirements due to the ice making time being too short or too long, and then accurately controls the size of the ice cubes to ensure the uniformity of the ice cube size.

[0009] In the above ice-making device, an ice-making column is provided on the evaporator, and the ice-making column extends into the accommodating groove.

[0010] In the above ice-making device, the first temperature sensor is located at the bottom of the containing tank.

[0011] In the above ice-making device, the ice-making device further comprises a water storage bin and an ice storage bin, the water storage bin is located below the accommodating tank, and the ice storage bin and the water storage bin are separated by a partition.

[0012] In the above ice-making device, the ice-making device further comprises a flip motor, which is used to drive the containing tank to rotate so that the opening of the containing tank faces upward to contain the liquid, or the opening of the containing tank faces the partition to pour the liquid.

[0013] In the above-mentioned ice-making device, the ice-making device also includes a baffle, one end of the baffle is movably connected to the edge of the receiving groove through a rotating shaft, and the other end of the baffle moves with the rotation of the receiving groove, and an ice-making column is provided on the evaporator; when the opening of the receiving groove faces the partition, the baffle is located below the ice-making column; when the opening of the receiving groove faces upward, the baffle is connected to the ice storage bin.

[0014] In the above ice-making device, the compressor is also connected to a display screen and a selection button, the display screen is used to display the ice-making time or ice-making countdown of the compressor, and the selection button is used to set the size of the ice cubes.

[0015] In the above ice-making device, a shell is provided above the accommodating tank, and the display screen and the selection buttons are provided on the surface of the shell.

[0016] In the above ice-making device, a throttling device is provided between the exhaust port of the compressor and the inlet of the evaporator.

[0017] In the above ice-making device, a second temperature sensor is further provided in the evaporator, and the compressor is shut down when the temperature collected by the second temperature sensor is less than a preset temperature threshold.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model can be achieved and obtained through the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0020] Figure 1It is a structural schematic diagram of an ice-making device provided by an embodiment of the utility model;

[0021] Figure 2 It is a structural principle diagram of an ice-making device provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are the orientations 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] The embodiment of the utility model provides an ice-making device, which is equipped with a first temperature sensor and a compressor so that the control panel can accurately control the start and stop time of the compressor according to the target size of the ice cubes and the water temperature, thereby avoiding the situation where the ice cubes cannot meet the usage requirements due to the ice making time being too short or too long, and then accurately controlling the size of the ice cubes to ensure the uniformity of the size of the ice cubes.

[0027] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0028] See also Figure 1 and Figure 2 , Figure 1 The figure shows a schematic structural diagram of an ice-making device provided by an embodiment of the utility model. Figure 2 The schematic diagram of the structure of the ice making device is shown in FIG. Figure 1 and Figure 2 As shown, the ice-making device includes a containing tank 100 for containing liquid, a first temperature sensor 110 is provided in the containing tank 100, and the first temperature sensor 110 is used to collect the temperature of the liquid in the containing tank 100; an evaporator 200, which is used to perform heat exchange with the liquid in the containing tank 100; a compressor 300, which is connected to the evaporator 200 to form a refrigeration circuit, and the operating time of the compressor 300 varies with the size of the ice cubes made and the temperature of the liquid in the containing tank 100.

[0029] It is understood that the evaporator 200 and the compressor 300 provided in this embodiment are the refrigeration parts of the ice-making device, which are usually connected by a refrigerant pipeline. Among them, refrigeration is the basis for the operation of the ice-making device. The refrigeration principle is to use the phase change process of the substance at different temperatures to absorb or release heat, thereby reducing the temperature. The ice-making device usually uses a vapor compression refrigeration system, and the specific refrigeration process is divided into four stages: compression, condensation, expansion and evaporation. First, the refrigerant is compressed into a high-pressure gas through the compressor 300. In this process, the refrigerant absorbs heat from the outside and increases its pressure and temperature. Then, the high-temperature and high-pressure refrigerant flows into the condenser, and through contact with cold water or air, the refrigerant releases heat, and the temperature gradually decreases to become a high-pressure liquid. Next, the high-pressure liquid enters the expander through the throttle valve, and a capillary tube or a throttle valve is usually used at this time. In the expander, the high-pressure liquid suddenly drops in pressure, causing the temperature to drop. Finally, the low-pressure and low-temperature refrigerant enters the evaporator 200, exchanges heat with the liquid in the containing tank 100, absorbs the heat of the liquid to condense it into ice cubes, and at the same time undergoes a phase change to become a low-temperature gas, completing the refrigeration cycle.

[0030] It is understandable that in order to ensure that the ice-making device can continuously make ice, the containing tank 100 can contain a certain amount of liquid for making ice cubes. In some embodiments, by arranging an ice-making tray in the containing tank 100, or other forms of ice-making molds, the temperature of the liquid on the surface of the ice-making tray is rapidly reduced by the circulation of the refrigerant until solid ice cubes are formed in the ice-making tray. In other examples, by arranging a replenishing valve, the liquid automatically enters the containing tank 100, and then the liquid is pumped to the diverter through the flow control valve and evenly sprayed on the surface of the evaporator 200, flowing through the wall of the evaporator 200 like a water curtain, and the liquid is cooled to the freezing point, and the liquid that is not evaporated and frozen will flow back into the containing tank 100 to restart the circulation work. In addition, in this embodiment, the evaporator 200 directly contacts the liquid in the containing tank 100 and performs heat exchange, so that the liquid near the evaporator 200 is rapidly condensed into ice cubes of different shapes. In practical applications, the containing tank 100 can also be manually added with solution to ensure that the solution in the containing tank 100 can meet the ice-making requirements of the ice-making device.

[0031] It is understandable that the first temperature sensor 110 is used to collect the temperature of the liquid in the receiving tank 100. Since the initial temperature of the liquid in the receiving tank 100 is inconsistent, different ice-making effects will result. When the temperature of the liquid is relatively high, it needs to absorb more heat from the liquid to condense into ice cubes, resulting in lighter ice cubes. When the temperature of the liquid is relatively low, the ice-making speed is relatively fast, and the ice cubes continue to be refrigerated after they are formed, resulting in the ice cubes sticking to each other and unable to be separated quickly and stably. Therefore, the time for the evaporator 200 to perform heat exchange with the liquid in the receiving tank 100 is adjusted according to the temperature of the liquid in the receiving tank 100, that is, the start and stop time of the compressor 300 is controlled to ensure that the ice cubes reach the preset ice cube size.

[0032] An ice-making device provided by an embodiment of the utility model is provided with a first temperature sensor 110 and a compressor 300. The first temperature sensor 110 is used to obtain the temperature of the liquid in the containing tank 100 during ice making. The compressor 300 makes ice on the liquid in the containing tank 100 at the evaporator 200 through a refrigeration circuit, and the user can set the size of the ice cubes required by the user. The ice-making device adaptively starts and stops the compressor 300 based on the collected liquid temperature and the set ice cube size, thereby avoiding the situation where the ice cubes cannot meet the usage requirements due to the ice making time being too short or too long, and then accurately controls the size of the ice cubes to ensure the uniformity of the ice cube size.

[0033] Specifically, the refrigeration capacity Qc of the ice-making device is calculated as shown in the following formula:

[0034]

[0035] Where M is the ice size coefficient, qc is the amount of cold absorbed by the ice per unit mass, and qc is calculated as follows:

[0036]

[0037] Among them, C1 is the specific heat capacity of water, Δt1 is the temperature difference of the liquid in the containing tank 100 from the initial temperature to 0°C, C2 is the specific heat capacity of ice, Δt2 is the temperature difference of ice from 0°C to the target temperature of ice cubes, and q3 is the latent heat absorbed by water turning into ice.

[0038] In addition, the refrigeration capacity Qc of the ice-making device can also be calculated by the following formula:

[0039]

[0040] Wherein, t is the operation time of the compressor 300, Q0 is the cooling capacity of the compressor 300 per unit time, that is, the cooling power of the compressor 300, and the specific calculation formula is as follows:

[0041]

[0042] Wherein, q0 is the unit mass refrigeration capacity of the refrigerant under the calculated working condition, qv is the unit volume refrigeration capacity of the refrigerant under the calculated working condition, and q0 and qv can be calculated based on the thermodynamics of the cycle. Vh is the theoretical air delivery capacity of the compressor 300, and λ is the air delivery coefficient of the compressor 300.

[0043] Therefore, through the above formula, the calculation formula for the running time t of the compressor 300 is obtained as follows:

[0044]

[0045] By calculating the relevant parameters of the compressor 300 and the preset ice cube size M, the operating time t of the compressor 300 can be accurately determined. For example, the refrigeration power of the compressor 300 is 50W, that is, 0.05KW, and the cooling capacity Qc required by the ice-making device to make small ice cubes is 0.005Kcal / h, then the operating time t of the compressor 300 is 0.05KW / 0.005Kcal / h=0.1h=6 minutes, that is, the time required for the ice-making device to make small ice cubes is 6 minutes. It can be understood that calculating the operating time of the compressor 300 based on the temperature of the liquid in the accommodating tank 100 and the size of the ice cubes is a prior art and will not be repeated here.

[0046] In actual application, the evaporator 200 is provided with an ice column 210, and the ice column 210 extends into the receiving tank 100. By providing the ice column 210, a tortuous refrigerant channel can be formed between the ice column 210 and the evaporator 200, further increasing the distance that the refrigerant flows through the ice column 210 and the evaporator 200, thereby increasing the heat exchange time of the refrigerant, so that the refrigerant and the liquid in the receiving tank 100 are fully exchanged with each other, thereby increasing the speed of ice formation. Specifically, after the liquid near the ice column 210 absorbs heat, it condenses and adheres to the lower end of the ice column 210 to form bullet-shaped ice cubes. This type of ice cube is beautiful and regular, has good transparency, and has a fast ice-making speed. It is widely used in small milk tea shops, bars, offices and other scenes.

[0047] In practical applications, the first temperature sensor 110 is located at the bottom of the containing tank 100. The first temperature sensor 110 is located at the bottom of the containing tank 100, which can effectively ensure that the first temperature sensor 110 can accurately obtain the initial temperature of the solution in the containing tank 100, and avoid the first temperature sensor 110 being close to the ice-making column 210, which may cause errors in reading the temperature of the solution in the containing tank 100 and affect the ice-making stability of the ice-making device.

[0048] In practical applications, the ice-making device further includes a water storage bin 120 and an ice storage bin 130. The water storage bin 120 is located below the receiving tank 100, and the ice storage bin 130 is separated from the water storage bin 120 by a partition 121. By providing the water storage bin 120 and the ice storage bin 130, it is convenient to recover the solution that has not condensed into ice cubes in the receiving tank 100 and collect the ice cubes into the ice storage bin 130, so as to separate the ice cubes from the solution, ensure the forming effect of the ice cubes, and improve the convenience of using the ice-making device.

[0049] In practical applications, the ice-making device further includes a flip motor 140, which is used to drive the accommodating tank 100 to rotate so that the opening of the accommodating tank 100 faces upward to accommodate liquid, or the opening of the accommodating tank 100 faces the partition 121 to pour liquid. By setting the flip motor 140, the ice cubes separated from the ice-making column 210 can rotate the accommodating tank 100 through the flip motor 140, and the ice cubes are uniformly stored in the ice storage bin 130 under the action of gravity, so that the ice-making device can continuously make ice, and the convenience of using the ice-making device is also improved. At the same time, the liquid in the accommodating tank 100 that has not formed ice cubes returns to the water storage bin 120 under the action of gravity, forming a cold water cycle. When the ice cubes are transferred to the ice storage bin 130, the flip motor 140 drives the accommodating tank 100 to reset, and the water pump of the ice-making device extracts the liquid in the water storage bin 120 into the accommodating tank 100 to facilitate the next round of ice cube making.

[0050] In actual application, the ice-making device also includes a baffle 150, one end of which is movably connected to the edge of the accommodating groove 100 through a rotating shaft, and the other end of the baffle 150 moves with the rotation of the accommodating groove 100. When the opening of the accommodating groove 100 is facing the partition 121, the baffle 150 is located below the ice-making column 210; when the opening of the accommodating groove 100 is facing upward, the baffle 150 is connected to the ice storage bin 130. By setting the baffle 150, after the ice cubes are formed, the flip motor 140 drives the accommodating tank 100 to rotate so that the opening of the accommodating tank 100 faces the partition 121; the solution in the accommodating tank 100 that has not condensed into ice cubes flows back into the water storage bin 120 through the through holes reserved on the baffle 150, so as to separate the ice cubes from the solution and ensure the ice cube forming effect; then the ice cubes fall off from the ice-making column 210 and are transferred to the cavity formed by the partition 121 and the baffle 150, and are stably supported by the baffle 150. Then, the flip motor 140 drives the accommodating tank 100 to rotate in contact with the partition 121 during the resetting process, and pushes the ice cubes in the cavity to slide along the inner surface of the partition 121 to the ice storage bin 130, so that the ice cubes in the cavity can be transferred to the ice storage bin 130 in an orderly and stable manner, so that the user can quickly and accurately extract the ice cubes from the ice storage bin 130.

[0051] In actual application, the compressor 300 is also connected to a display screen 310 and a selection button 320. The display screen 310 is used to display the ice making time or ice making countdown of the compressor 300, and the selection button 320 is used to set the size of the ice cubes. By setting the display screen 310, the user can accurately obtain the time when ice making is completed, thereby improving the convenience of using the ice making device. By setting the selection button 320, the user can flexibly set the size of the ice cubes according to actual needs to ensure the quality of ice making.

[0052] like Figure 1 As shown, a housing 160 is provided above the accommodating tank 100, and a display screen 310 and a selection button 320 are provided on the surface of the housing 160. By providing the housing 160, the accommodating tank 100 is prevented from heat exchange with the outside, the ice-making efficiency of the ice-making device is improved, and energy consumption is effectively reduced. The display screen 310 and the selection button 320 are located on the housing 160, so that the user can set the size of the ice cubes through the selection button 320, and can intuitively observe the ice-making time of the current compressor 300, the temperature of the liquid in the accommodating tank 100, and other information through the display screen 310, so that the user can accurately obtain the time when ice making is completed. In other embodiments, the display screen 310 can use a touch screen, so that the user can set the size of the ice cubes through the touch screen according to the needs, so as to accurately control the ice-making time of the compressor 300 and ensure the uniformity of the size of the ice cubes.

[0053] In actual application, a throttling device 330 is provided between the exhaust port of the compressor 300 and the inlet of the evaporator 200. In the refrigeration system, the throttling device 330 is used to control and adjust the flow of the liquid refrigerant transported from the high-pressure side to the low-pressure side, so as to ensure the pressure difference required to be established by the refrigeration system to meet the requirements of low-temperature refrigeration. The throttling device 330 is a device for adjusting the flow of the refrigerant. It mainly plays the role of throttling and reducing pressure by changing the pressure. Generally, a variable caliber is set inside the throttling device 330. When the refrigerant enters, its pressure will make the caliber smaller, thereby reducing the flow rate; when the refrigerant leaves, the pressure will make the caliber larger, thereby increasing the flow rate. Therefore, the throttling device 330 can effectively reduce the power consumption of the air conditioner and reduce the cost of use. Specifically, the throttling device 330 includes an electronic expansion valve, a thermal expansion valve, a capillary tube, etc.

[0054] In practical applications, the throttling device 330 is a capillary tube. It is understandable that the capillary tube is a commonly used throttling device 330 in the refrigeration system and is also a basic control component in the refrigeration system. The refrigerant must pass through the throttling of the capillary tube and the expansion valve, and change from a high-temperature, high-pressure liquid state to a low-temperature, low-pressure liquid state before it can vaporize and absorb heat in the evaporator. Specifically, the capillary tube generally refers to a slender copper tube with an inner diameter of 0.4-2.0 mm. The aperture of the capillary tube itself is relatively small. When the refrigerant flows through the capillary tube, it needs to overcome the resistance in the pipeline, which will produce a certain pressure drop. The smaller the tube diameter and the longer the tube length, the greater the pressure drop. Therefore, the regulating effect of the capillary tube is mainly controlled according to the length of the pipeline. As a throttling mechanism of the refrigeration system, the capillary tube is the simplest one. Because of its low price and flexible selection, it is widely used in small refrigeration devices.

[0055] In actual application, the evaporator 200 is further provided with a second temperature sensor 220, and the compressor 300 is shut down when the temperature collected by the second temperature sensor 220 is less than a preset temperature threshold. It is understandable that the second temperature sensor 220 is used to collect the temperature of the refrigerant in the evaporator 200, so as to obtain the internal temperature of the evaporator 200. When the temperature collected by the second temperature sensor 220 is less than the preset temperature threshold, that is, the temperature of the refrigerant in the evaporator 200 is lower than the temperature threshold, the pressure in the evaporator 200 is lower than the normal value, and the heat exchange between the evaporator 200 and the liquid in the containing tank 100 cannot be carried out normally. At this time, the refrigerant in the evaporator 200 cannot absorb the heat of the liquid in the containing tank 100 as required. In order to protect the compressor 300 and the evaporator 200 and other components, the compressor 300 will be shut down, and an error will be reported through the display screen 310, prompting the user to check. Specifically, the conditions that cause the internal temperature of the evaporator 200 to be too low include the blockage of the throttling device 330, which causes insufficient refrigerant liquid supply in the refrigeration cycle system; the presence of dirt on the surface of the ice column 210 affects the heat transfer efficiency between the evaporator 200 and the liquid in the accommodating tank 100; and the presence of refrigerant leakage in the refrigeration cycle system affects the airtightness between the compressor 300 and the evaporator 200. It is understandable that the compressor 300 shuts down according to the temperature collected by the second temperature sensor 220, which belongs to the prior art and will not be described in detail here.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An ice-making device, characterized in that: include: A containing tank, used for containing liquid, wherein a first temperature sensor is provided in the containing tank, and the first temperature sensor is used for collecting the temperature of the liquid in the containing tank; an evaporator, used for exchanging heat with the liquid in the containing tank; A compressor is connected to the evaporator to form a refrigeration circuit, and the running time of the compressor varies with the size of the ice cubes produced and the temperature of the liquid in the containing tank.

2. The ice-making device according to claim 1, characterized in that: The evaporator is provided with an ice-making column, and the ice-making column extends into the containing tank.

3. The ice-making device according to claim 2, characterized in that: The first temperature sensor is located at the bottom of the containing tank.

4. The ice-making device according to claim 1, characterized in that: The ice-making device further comprises a water storage bin and an ice storage bin, wherein the water storage bin is located below the accommodating tank, and the ice storage bin and the water storage bin are separated by a partition.

5. The ice-making device according to claim 4, characterized in that: The ice-making device further comprises a flip motor, and the flip motor is used to drive the containing tank to rotate so that the opening of the containing tank faces upward to contain the liquid, or the opening of the containing tank faces the partition to pour the liquid.

6. The ice-making device according to claim 5, characterized in that: The ice-making device also includes a baffle, one end of which is movably connected to the edge of the accommodating groove via a rotating shaft, and the other end of the baffle moves with the rotation of the accommodating groove. An ice-making column is provided on the evaporator; when the opening of the accommodating groove faces the partition, the baffle is located below the ice-making column; when the opening of the accommodating groove faces upward, the baffle is connected to the ice storage bin.

7. The ice-making device according to claim 1, characterized in that: The compressor is also connected to a display screen and a selection button, wherein the display screen is used to display the ice-making time or ice-making countdown of the compressor, and the selection button is used to set the size of the ice cubes.

8. The ice-making device according to claim 7, characterized in that: A shell is arranged above the accommodating groove, and the display screen and the selection buttons are arranged on the surface of the shell.

9. The ice-making device according to claim 1, characterized in that: A throttling device is provided between the exhaust port of the compressor and the inlet of the evaporator.

10. The ice-making device according to claim 1, characterized in that: A second temperature sensor is also provided in the evaporator, and the compressor is shut down when the temperature collected by the second temperature sensor is less than a preset temperature threshold.

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