Ice making device and refrigerator

By using refrigerant direct cooling to make ice, and combining a three-way valve and a freezer evaporator to optimize the refrigerator's refrigeration cycle, the problems of slow ice-making speed and odor mixing are solved, achieving efficient ice-making and the production of high-quality ice.

CN223709986UActive Publication Date: 2025-12-23ICE KRYPTON EPOCH INTELLIGENT TECHNOLOGY (NANJING) CO LTD
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Patent Information

Application Number
CN202423324040.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-23
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing refrigerators have slow ice-making speed and low efficiency, and the frost-free ice-making process is prone to cross-contamination of odors, which affects the user experience.

Method used

Ice is made using a direct refrigerant cooling method. The ice evaporator provides cooling capacity through contact with the ice-making plate. Combined with a three-way valve and a freezer evaporator, the refrigeration cycle is optimized to achieve phase change of flowing water to form ice, thus avoiding odor transfer.

Benefits of technology

It improves ice-making speed and efficiency, results in highly transparent ice, reduces air bubbles, prevents flavor mixing, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides an ice making device and a refrigerator. The ice making device is applied to the refrigerator. The refrigerator comprises a compressor, a condenser and a capillary tube which are connected in series. The ice-making device comprises an ice-making disc, an ice-making evaporator and a water distribution pipe; the water distribution pipe is arranged above the ice-making tray and is used for enabling water to flow into the ice-making tray; the ice-making evaporator is arranged on the back face of the ice-making disc and makes contact with the ice-making disc, and the ice-making evaporator is further connected between the compressor and the capillary tube and used for providing cooling capacity so that the water in the flowing state can be subjected to phase change in the ice-making disc to form ice. According to the ice-making device, the ice-making speed and the ice-making efficiency can be improved, air mixing and odor mixing are prevented, and the user experience is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to an ice making device and a refrigerator. BACKGROUND

[0002] A refrigerator is a household appliance that can maintain a constant low temperature to delay the shelf life and freshness of food and other items. With the improvement of people's living standards, the performance requirements of the refrigerator are also getting higher and higher. In addition to the functions of refrigeration and freezing, using the refrigerator to make ice is also a more and more popular application.

[0003] The existing refrigerator ice making usually adopts air cooling, that is, after the ice making tray is filled with water, ice is made by directly blowing cold air on the ice making tray. The above-mentioned air cooling mainly realizes ice making through air cooling. The ice making speed is slow, and the ice making efficiency is low. The air duct of the air cooling ice making is communicated with the refrigeration or freezing chamber, which is easy to cause air and odor mixing, greatly affecting the user experience. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide an ice making device and a refrigerator to improve the ice making speed and efficiency, prevent air and odor mixing, and affect the user experience.

[0005] In a first aspect, the embodiments of the present application provide an ice making device applied to a refrigerator, wherein the refrigerator comprises a compressor, a condenser and a capillary tube connected in series;

[0006] The ice making device comprises an ice making tray, an ice making evaporator and a water distribution pipe;

[0007] The water distribution pipe is arranged above the ice making tray and is used to flow water into the ice making tray;

[0008] The ice making evaporator is arranged on the back of the ice making tray and is in contact with the ice making tray. The ice making evaporator is also connected between the compressor and the capillary tube and is used to provide cold energy to change the water in a flowing state into ice in the ice making tray.

[0009] The ice making device provided by the embodiments of the present application is applied to a refrigerator. The refrigerator comprises a compressor, a condenser and a capillary tube connected in series. The ice making device comprises an ice making tray, an ice making evaporator and a water distribution pipe. The water distribution pipe is arranged above the ice making tray and is used to flow water into the ice making tray. The ice making evaporator is arranged on the back of the ice making tray and is in contact with the ice making tray. The ice making evaporator is also connected between the compressor and the capillary tube and is used to provide cold energy to change the water in a flowing state into ice in the ice making tray. The ice making device provided by the embodiments of the present application can make the ice have fewer internal bubbles, higher transparency and better quality. The ice making utilizes the refrigerant to directly cool the ice making tray, so that the cooling speed is fast, the ice making speed is fast, the ice making time is short, the ice making efficiency can be improved, air and odor mixing can be prevented, and the user experience can be improved.

[0010] In some possible implementations, the compressor, the condenser and the capillary tube are sequentially connected in the flow direction of the refrigerant.

[0011] The inlet of the ice-making evaporator is connected with the outlet of the capillary tube, and the outlet of the ice-making evaporator is connected with the inlet of the compressor. In this way, the flow of the refrigerant can be adjusted by connecting the ice-making evaporator after the capillary tube.

[0012] In some possible implementations, the ice-making device further comprises a three-way valve.

[0013] The first end of the three-way valve is connected with the outlet of the capillary tube, the second end of the three-way valve is connected with the inlet of the ice-making evaporator, and the third end of the three-way valve is connected with the inlet of the compressor. The three-way valve can be used to adjust whether the ice-making evaporator works, so as to realize ice making of the refrigerator as needed.

[0014] In some possible implementations, the ice-making device further comprises a freezing evaporator.

[0015] The freezing evaporator is connected between the ice-making evaporator and the capillary tube, or arranged between the ice-making evaporator and the compressor. In this way, the ice-making evaporator and the freezing evaporator are connected, so that the ice-making evaporator can be connected in the original refrigeration cycle of the refrigerator, thereby reducing energy consumption.

[0016] In some possible implementations, the ice-making tray comprises a base plate and a surrounding plate surrounding the edge of the base plate.

[0017] The base plate and the surrounding plate form an ice-making space, and the ice-making evaporator is arranged on the surface of the base plate away from the ice-making space. The ice-making evaporator has a large contact area with the ice-making tray, which can improve the ice-making efficiency.

[0018] In some possible implementations, the ice-making tray further comprises a partition plate arranged in the ice-making space.

[0019] The ice-making space comprises a plurality of ice-making cells separated by the partition plate, and each of the plurality of ice-making cells is opposite to part of the ice-making evaporator. The plurality of ice-making cells can form a plurality of ices, so as to adjust the size of the ices, and each ice-making cell corresponds to the ice-making evaporator, so that the ice-making evaporator can effectively cool each ice-making cell, thereby improving the ice-making efficiency.

[0020] In some possible implementations, the ice-making device further comprises a heater arranged on the back of the ice-making tray, for heating the ice-making tray. The heater can be used to heat the ice-making tray, so as to separate the ice from the ice-making tray.

[0021] In some possible embodiments, the heater surrounds the ice-making evaporator to improve ice-off efficiency and increase space utilization.

[0022] In some possible embodiments, the ice-making device further comprises:

[0023] a surrounding frame, which is sleeved outside the ice-making tray and the ice-making evaporator;

[0024] a support, which is arranged at one side of the surrounding frame and connected with the water distribution pipe. In this way, the surrounding frame isolates and protects the ice-making tray and the ice-making evaporator, and the support fixes the water distribution pipe, facilitating installation of the ice-making device.

[0025] In a second aspect, the embodiments of the present application further provide a refrigerator comprising the ice-making device as described above, which at least has the advantage of high ice-making efficiency, and specific effects refer to the above, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] Figure 1 a first connection diagram of the ice-making evaporator provided by the present application;

[0028] Figure 2 a second connection diagram of the ice-making evaporator provided by the present application;

[0029] Figure 3 a third connection diagram of the ice-making evaporator provided by the present application;

[0030] Figure 4 a fourth connection diagram of the ice-making evaporator provided by the present application;

[0031] Figure 5 a fifth connection diagram of the ice-making evaporator provided by the present application;

[0032] Figure 6 a sixth connection diagram of the ice-making evaporator provided by the present application;

[0033] Figure 7 a seventh connection diagram of the ice-making evaporator provided by the present application;

[0034] Figure 8 a schematic diagram of the ice-making device provided by the present application;

[0035] Figure 9 a schematic diagram of the ice-making tray provided by the present application;

[0036] Figure 10A schematic view of an ice-making evaporator and a heater provided for the present application;

[0037] Figure 11 A schematic view of a water diversion pipe provided for the present application;

[0038] Figure 12 A schematic view of a surrounding frame and a support provided for the present application.

[0039] Explanation of reference signs:

[0040] 11-compressor; 12-condenser; 13-capillary; 14-three-way valve; 15-refrigeration evaporator;

[0041] 20-ice-making tray; 21-base plate; 22-surrounding plate; 23-ice-making grid; 24-dividing plate;

[0042] 30-ice-making evaporator;

[0043] 40-water diversion pipe;

[0044] 50-heater;

[0045] 60-surrounding frame; 61-opening;

[0046] 70-support; 71-clamping interface. DETAILED DESCRIPTION

[0047] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, the same numbers refer to the same elements throughout the drawings, unless otherwise represented. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they only represent examples of apparatuses and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0048] In the related art, ice is made by directly blowing cold air on an ice-making tray after the ice-making tray is filled with water, mainly through air to transfer cold energy to achieve ice making, which has low heat transfer efficiency, slow ice making speed, and low ice making efficiency. It usually takes five or six hours to form ice, and even if the ice-making tray is placed at the air outlet, the ice formation speed is difficult to be greatly improved. In addition, the cold air is easy to carry odors after multiple cycles, and the formed ice has odors, poor taste, and low safety.

[0049] Therefore, the embodiments of the present application provide an ice-making device, which forms ice through direct cooling of flowing water, on the one hand, the ice has less internal bubbles, high transparency, and good quality; on the other hand, the cooling speed is fast, the ice making speed is fast, the ice making time is short, and the ice making efficiency is high.

[0050] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the drawings.

[0051] The refrigerator provided by the embodiments of the present application comprises a cabinet, which is used to accommodate other structures and forms a space for storing articles to realize functions such as refrigeration, freezing, and temperature change.

[0052] Referring to Figure 1 The refrigerator further comprises a compressor 11, a condenser 12, and a capillary tube 13 connected in series to form a refrigeration system of the refrigerator, provide cold energy for refrigeration, and realize a refrigeration cycle. In some possible examples, the compressor 11, the condenser 12, and the capillary tube 13 are sequentially connected in the flow direction of the refrigerant, for example, the outlet of the compressor 11 is connected to the inlet of the condenser 12, and the outlet of the condenser 12 is connected to the inlet of the capillary tube 13.

[0053] The compressor 11 is used to compress the refrigerant vapor to form high-temperature and high-pressure refrigerant vapor, the condenser 12 is used to condense the refrigerant vapor into medium-temperature and high-pressure liquid refrigerant, and the capillary tube 13 is used to throttle, depressurize, and adjust the flow to convert the medium-temperature and high-pressure liquid refrigerant into low-temperature and low-pressure refrigerant vapor. Of course, other devices can also be connected between the compressor 11 and the condenser 12 and between the condenser 12 and the capillary tube 13 according to requirements.

[0054] The refrigerator further comprises an ice making device, which is used to make ice. The ice making device can be arranged in the freezing chamber and / or the refrigerating chamber, or can be arranged in a separate ice making chamber, that is, the refrigeration compartment comprises an ice making chamber. By using the ice making device, the refrigerator has the function of making ice, thereby improving the functionality of the refrigerator.

[0055] Referring to Figures 1 to 12 The ice making device comprises an ice making tray 20, an ice making evaporator 30, and a water distribution pipe 40 arranged above the ice making tray 20 and used to flow water into the ice making tray 20. The ice making evaporator 30 is arranged on the back of the ice making tray 20 and in contact with the ice making tray 20, and the ice making evaporator 30 is further connected between the compressor 11 and the capillary tube 13 and used to provide cold energy to change the flowing state of water in the ice making tray 20 into ice.

[0056] Specifically, as Figure 6As shown, the water diversion pipe 40 is above the ice-making tray 20, so that water can flow into the ice-making tray 20 under the action of gravity. The ice-making tray 20 is used for ice shaping, and keeps the water flowing, that is, the water in a flowing state forms ice in the ice-making tray 20, so that the formed ice has less internal bubbles, higher transparency, and better quality. The ice is made by directly cooling the flowing water, which can also avoid wind and odor mixing and improve user experience.

[0057] As shown in Figures 1 to 5 , the ice-making evaporator 30 is connected with the compressor 11 and the capillary tube 13, and is in contact with the ice-making tray 20. The ice-making tray 20 is directly cooled by the refrigerant, so that the cooling speed is fast, the ice-making speed is fast, the ice-making time is short, and the ice-making efficiency can be improved.

[0058] In some possible implementations, as shown in Figure 1 , the inlet of the ice-making evaporator 30 is connected with the outlet of the capillary tube 13, and the outlet of the ice-making evaporator 30 is connected with the inlet of the compressor 11. In this way, the refrigerant in the ice-making evaporator 30 enters through the capillary tube 13 and flows into the compressor 11. The refrigerant sequentially passes through the compressor 11, the condenser 12, the capillary tube 13, and the ice-making evaporator 30 to complete the refrigeration cycle.

[0059] As shown in Figure 2 , the ice-making device further includes a three-way valve 14. The first end of the three-way valve 14 is connected with the outlet of the capillary tube 13, the second end of the three-way valve 14 is connected with the inlet of the ice-making evaporator 30, and the third end of the three-way valve 14 is connected with the inlet of the compressor 11. The three-way valve 14 is, for example, an electric three-way valve. The first end of the three-way valve 14 is the inlet of the three-way valve 14, and the second end and the third end of the three-way valve 14 are both outlets of the three-way valve 14. In this way, the three-way valve 14 can be used to guide the refrigerant. When ice making is not needed, the refrigerant can directly flow into the compressor 11 through the three-way valve 14 without passing through the ice-making evaporator 30, so as to realize separate control of ice making.

[0060] As shown in Figure 3 and Figure 4 , the ice-making device further includes a freezing evaporator 15. The freezing evaporator 15 is connected between the ice-making evaporator 30 and the capillary tube 13, or is arranged between the ice-making evaporator 30 and the compressor 11. The freezing evaporator 15 provides cold energy for the corresponding refrigeration compartment to realize refrigeration of the corresponding refrigeration compartment, thereby realizing freezing / cold storage functions. The refrigerant can be used in the ice-making evaporator 30 and the freezing evaporator 15 to improve the utilization efficiency of the refrigerant.

[0061] In some possible implementations, as shown in Figure 3As shown, the inlet of the freezing evaporator 15 is connected with the outlet of the capillary tube 13, and the outlet of the freezing evaporator 15 is connected with the inlet of the ice-making evaporator 30. In the flow direction of the refrigerant, the ice-making evaporator 30 is located behind the freezing evaporator 15. In other possible implementations, as shown in FIG. 2, the inlet of the freezing evaporator 15 is connected with the outlet of the ice-making evaporator 30, and the outlet of the freezing evaporator 15 is connected with the inlet of the compressor 11. In the flow direction of the refrigerant, the ice-making evaporator 30 is located in front of the freezing evaporator 15. Figure 4 As shown, the inlet of the freezing evaporator 15 is connected with the outlet of the capillary tube 13, and the outlet of the freezing evaporator 15 is connected with the inlet of the ice-making evaporator 30. In the flow direction of the refrigerant, the ice-making evaporator 30 is located behind the freezing evaporator 15. In other possible implementations, as shown in FIG. 2, the inlet of the freezing evaporator 15 is connected with the outlet of the ice-making evaporator 30, and the outlet of the freezing evaporator 15 is connected with the inlet of the compressor 11. In the flow direction of the refrigerant, the ice-making evaporator 30 is located in front of the freezing evaporator 15.

[0062] In some possible examples, as shown in FIG. 1, the ice-making device includes the three-way valve 14 and the freezing evaporator 15, the freezing evaporator 15 is arranged between the three-way valve 14 and the capillary tube 13 to form multiple refrigeration cycles, and the three-way valve 14 connects or disconnects the freezing evaporator 15 and the ice-making evaporator 30, so that the refrigerator can always maintain the freezing / chilling function, and the ice-making function can be started as needed, and the ice-making is separated from the freezing / chilling. Figure 5

[0063] Specifically, the compressor 11, the condenser 12, the capillary tube 13, and the freezing evaporator 15 are sequentially connected, the outlet of the freezing evaporator 15 is connected with the first end of the three-way valve 14, the second end of the three-way valve 14 is connected with the inlet of the ice-making evaporator 30, and the third end of the three-way valve 14 is connected with the inlet of the compressor 11.

[0064] When the three-way valve 14 connects the ice-making evaporator 30 and the freezing evaporator 15, a refrigeration cycle of the compressor 11, the condenser 12, the capillary tube 13, the freezing evaporator 15, the ice-making evaporator 30, and the compressor 11 is formed. The refrigerant enters the freezing evaporator 15 and the ice-making evaporator 30 in sequence after being throttled and depressurized by the capillary tube 13, and performs heat absorption and cooling, and simultaneously realizes the ice-making function and the chilling / freezing function.

[0065] When the three-way valve 14 disconnects the ice-making evaporator 30 and the freezing evaporator 15, a refrigeration cycle of the compressor 11, the condenser 12, the capillary tube 13, the freezing evaporator 15, and the compressor 11 is formed. The refrigerant enters the freezing evaporator 15 after being throttled and depressurized by the capillary tube 13, and enters the compressor 11 after passing through the freezing evaporator 15, and only performs chilling / freezing without ice-making.

[0066] In other examples, as shown in FIG. 2, the freezing evaporator 15 is arranged between the ice-making evaporator 30 and the compressor 11, the first end of the three-way valve 14 is connected with the outlet of the capillary tube 13, the second end of the three-way valve 14 is connected with the inlet of the ice-making evaporator 30, and the third end of the three-way valve 14 is connected with the outlet of the freezing evaporator 15. The three-way valve 14 connects or disconnects the freezing evaporator 15 and the ice-making evaporator 30. Figure 6 Alternatively, as shown in FIG. 3, the freezing evaporator 15 is arranged between the ice-making evaporator 30 and the compressor 11, the first end of the three-way valve 14 is connected with the outlet of the capillary tube 13, the second end of the three-way valve 14 is connected with the inlet of the ice-making evaporator 30, and the third end of the three-way valve 14 is connected with the outlet of the freezing evaporator 15. The three-way valve 14 connects or disconnects the freezing evaporator 15 and the ice-making evaporator 30.

[0067] Figure 7 ​​As shown, the freezing evaporator 15 is arranged between the ice-making evaporator 30 and the compressor 11. The first end of the three-way valve 14 is connected to the outlet of the ice-making evaporator 30, the second end of the three-way valve 14 is connected to the inlet of the freezing evaporator 15, and the third end of the three-way valve 14 is connected to the inlet of the freezing compressor 11. The three-way valve 14 connects or disconnects the freezing evaporator 15 and the ice-making evaporator 30, so that the refrigerator can always maintain the ice-making function, and the freezing / chilling function can be started as needed.

[0068] Referring to Figures 8 to 12 , the ice-making device can realize flow ice making, that is, the phase change of water in a flowing state into ice. The ice-making device includes an ice-making tray 20, which realizes the phase change of water and captures the formed ice, so that the ice condenses in the ice-making tray 20. As shown in Figure 8 and Figure 9 , the ice-making tray 20 includes a base plate 21 and a surrounding plate 22 surrounding the edge of the base plate 21; the base plate 21 and the surrounding plate 22 form an ice-making space, and the ice-making evaporator 30 is arranged on the surface of the base plate 21 away from the ice-making space.

[0069] The base plate 21 can be a flat plate, which is placed vertically, that is, the normal line of the base plate 21 is perpendicular to the height direction of the refrigerator, or forms an acute angle. The surrounding plate 22 surrounds the edge of the base plate 21 to form an ice-making space with the base plate 21. The surrounding plate 22 and the base plate 21 can be an integral structure, so that the surrounding plate 22 and the base plate 21 are reliably connected and easy to manufacture. The base plate 21 and the surrounding plate 22 are made of metal to have good thermal conductivity. The end of the surrounding plate 22 away from the base plate 21 forms an opening, and water flows into the ice-making space through the opening. The opening is consistent with the horizontal direction, or forms an acute angle with the horizontal direction. For example, the opening is horizontally arranged, as shown in Figure 9 , the opening faces forward.

[0070] Referring to Figure 9 and Figure 10 , the ice-making evaporator 30 is arranged on the base plate 21 and located on the side of the base plate 21 away from the ice-making space. In this way, the surrounding plate 22 and the ice-making evaporator 30 are arranged on the two sides of the base plate 21 respectively, and the ice-making evaporator 30 is arranged on the base plate 21 and in contact with the surface of the base plate 21 to increase the contact area with the base plate 21 and improve the heat transfer efficiency. As shown in Figure 9 and Figure 10 , the ice-making tray 20 is in front and the ice-making evaporator 30 is in back.

[0071] The ice-making evaporator 30 comprises refrigeration pipes which are arranged in a meandering manner on the back of the ice-making tray 20 to increase the contact length of the refrigeration pipes with the ice-making tray 20 and improve the cooling efficiency. In some possible examples, the refrigeration pipes comprise first segments and second segments which are arranged alternately in sequence, and third segments which connect adjacent first segments and second segments, at least one of the first segments and the second segments being in a serpentine shape to increase the total length of the refrigeration pipes which contact the ice-making tray 20. For example, the second segments are in a serpentine shape.

[0072] With reference to Figure 9 , the ice-making tray 20 further comprises a partition plate 24 which is arranged in an ice-making space, the ice-making space comprising a plurality of ice-making cells 23 which are separated by the partition plate 24, and the plurality of ice-making cells 23 each contact part of the ice-making evaporator 30. In this way, each of the ice-making cells 23 is provided with cold energy by part of the ice-making evaporator 30, so that ice can be formed in each of the ice-making cells 23, and the ice-making efficiency is improved.

[0073] Specifically, the partition plate 24 contacts the surrounding plate 22 and the base plate 21, for example, the partition plate 24, the base plate 21 and the surrounding plate 22 are in an integrated structure. The ice-making cells 23 are independent of each other, and the back of each of the ice-making cells 23 is provided with refrigeration pipes corresponding thereto, and ice can be formed in each of the ice-making cells 23 independently. For example, the partition plate 24 comprises horizontal plates and vertical plates which are arranged in a cross manner to separate the ice-making space to form the ice-making cells 23. The sizes of the ice-making cells 23 can be the same or similar, or can be set according to the refrigeration pipes.

[0074] With reference to Figure 8 and Figure 11 , the water distribution pipe 40 is arranged above the ice-making tray 20, so that water flows into the ice-making tray 20 under the action of gravity, without the need to arrange a power device, and the energy consumption is reduced. The water distribution pipe 40 is further connected to the water tank through a pipeline, so that water in the water tank can enter the water distribution pipe 40, and the water distribution pipe 40 divides the water into a plurality of streams which flow into the ice-making tray 20 to provide a water source required for ice making.

[0075] As shown in Figure 9 and Figure 10 , the water distribution pipe 40 can be a circular pipe and a straight pipe, and the water distribution pipe 40 is specifically arranged directly above the surrounding plate 22. The side of the water distribution pipe 40 which faces the ice-making tray 20 is provided with a plurality of water outlets, the plurality of water outlets are arranged on the lower side of the water distribution pipe 40, and the plurality of water outlets are arranged at equal intervals along the axis direction of the water distribution pipe 40. Each of the ice-making cells 23 is opposite to at least one of the water outlets, so that water can flow into each of the ice-making cells 23.

[0076] With reference to Figure 8 and Figure 10The ice making device further comprises a heater 50 arranged at the back of the ice making tray 20 for continuously heating the ice making tray 20 so that the ice in contact with the ice making tray 20 is melted, the ice is separated from the ice making tray 20, and the ice slides off the ice making tray 20 to achieve ice removal. The heater 50 is in contact with the ice making tray 20, specifically the base plate 21, to improve the heat conduction efficiency and thus the ice removal efficiency.

[0077] The heater 50, for example, comprises a heating wire for heating the ice making tray 20 by the heat effect of electric current. The heater 50 and the ice making evaporator 30 are arranged at the same side of the ice making tray 20 to provide cold or heat to the ice making tray 20 as needed. The heater 50 is arranged around the ice making evaporator 30, so that the heater 50 and the ice making evaporator 30 are close to each other, and the position for providing cold and the position for providing heat are close to each other, which can melt the ice near the ice making evaporator 30 for facilitating ice removal and improving the space utilization of the back of the ice making tray 20. The ice making evaporator 30 and the heater 50 can work alternately to complete multiple ice making and ice removal.

[0078] Referring to Figure 8 , Figure 9 and Figure 12 , the ice making device further comprises a surrounding frame 60 sleeved outside the ice making tray 20 and the ice making evaporator 30 to limit the position of the ice making evaporator 30. The surrounding frame 60 is also sleeved outside the heater 50, and the surrounding frame 60 is further provided with an opening 61 for the end of the ice making evaporator 30 and the heater 50 to extend out to realize connection with other structures. The surrounding frame 60 specifically surrounds the side and back of the ice making tray 20, and can be connected with the ice making tray 20 by clamping or fasteners, and the shape of the surrounding frame 60 is adapted to the shape of the ice making tray 20.

[0079] The ice making device further comprises a bracket 70 arranged at one side of the surrounding frame 60 and connected with the water distribution pipe 40, so that the water distribution pipe 40 is fixed relative to the ice making tray 20. Exemplarily, the bracket 70 and the surrounding frame 60 can be an integrated structure, and the bracket 70 is connected with the water distribution pipe 40 by clamping. The bracket 70 can be provided with two, and the two brackets 70 are respectively located at the two ends of the upper side of the surrounding frame 60. The side of the bracket 70 away from the ice making tray 20 is provided with a clamping interface 71, and the water distribution pipe 40 is clamped in the clamping interface 71. The extension direction of the water distribution pipe 40 is consistent with the arrangement direction of the two brackets 70.

[0080] In some possible examples, the surrounding frame 60 is further provided with a guide member (not shown in the figure), which guides the water flowing out of the water outlet of the water distribution pipe 40 to the inside of the ice making space, so that the flowing water can contact the base plate 21 of the ice making tray 20 to condense on the base plate 21. It can be understood that the flowing water that has not been phase changed into ice will flow out of the ice making tray 20 under the action of gravity.

[0081] The ice making device provided by the embodiment of the present application is applied to a refrigerator, and the refrigerator comprises a compressor 11, a condenser 12 and a capillary tube 13 connected in series. The ice making device comprises an ice making tray 20, an ice making evaporator 30 and a water distribution pipe 40, the water distribution pipe 40 is arranged above the ice making tray 20 and is used for flowing water into the ice making tray 20. The ice making evaporator 30 is arranged at the back of the ice making tray 20 and is in contact with the ice making tray 20, and the ice making evaporator 30 is further connected between the compressor 11 and the capillary tube 13 and is used for providing cold energy to change the water in a flowing state into ice in the ice making tray 20, so that the ice has less internal bubbles, higher transparency and better quality. The ice making utilizes the refrigerant to directly cool the ice making tray 20, the cooling speed is fast, the ice making speed is fast, the ice making time is short, the ice making efficiency can be improved, and the direct cooling water ice making can also avoid wind and odor mixing and improve the user experience.

[0082] In the specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other. The description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the exemplary description of the above terms does not necessarily mean 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.

[0083] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ice making device, characterized by, The application is applied to a refrigerator, which comprises a compressor, a condenser and a capillary tube connected in series. The ice making device comprises an ice making tray, an ice making evaporator and a water distribution pipe. The water distribution pipe is arranged above the ice making tray to flow water into the ice making tray. The ice making evaporator is arranged on the back of the ice making tray and in contact with the ice making tray, and is connected between the compressor and the capillary tube to provide cold energy to change the water in a flowing state into ice in the ice making tray.

2. The ice making device according to claim 1, wherein, The compressor, the condenser and the capillary tube are connected in series along the flow direction of the refrigerant. The inlet of the ice making evaporator is connected with the outlet of the capillary tube, and the outlet of the ice making evaporator is connected with the inlet of the compressor.

3. The ice making device of claim 1, wherein, The ice making device further comprises a three-way valve. The first end of the three-way valve is connected with the outlet of the capillary tube, the second end of the three-way valve is connected with the inlet of the ice making evaporator, and the third end of the three-way valve is connected with the inlet of the compressor.

4. The ice making device of claim 1, wherein, The ice making device further comprises a freezing evaporator. The freezing evaporator is connected between the ice making evaporator and the capillary tube, or arranged between the ice making evaporator and the compressor.

5. The ice making device according to any one of claims 1 to 4, wherein The ice making tray comprises a base plate and a surrounding plate surrounding the edge of the base plate. The base plate and the surrounding plate form an ice making space, and the ice making evaporator is arranged on the surface of the base plate away from the ice making space.

6. The ice making device according to claim 5, wherein The ice making tray further comprises a partition plate arranged in the ice making space. The ice making space comprises a plurality of ice making cells separated by the partition plate, and each of the plurality of ice making cells is opposite to part of the ice making evaporator.

7. The ice making device according to any one of claims 1 to 4, wherein The ice making device further comprises a heater arranged on the back of the ice making tray to heat the ice making tray.

8. The ice making device according to claim 7, wherein, The heater surrounds the ice making evaporator.

9. The ice making device according to any one of claims 1 to 4, wherein The ice making device further comprises: a surrounding frame sleeved on the ice making tray and the ice making evaporator; a support arranged on one side of the surrounding frame and connected with the water distribution pipe.

10. A refrigerator characterized by comprising: The ice making device comprises the ice making device according to any one of claims 1-9.