Ice making device and ice maker

Abstract

The utility model relates to the technical field of ice making machines, in particular to an ice making device which comprises an upper mold and a lower mold, an upper mold cavity and a lower mold cavity are matched to form a plurality of spherical cavities for water flow condensation, a heat conduction device for cooling the upper mold cavity is arranged on the upper side of the upper mold, the upper mold is connected with a plurality of water inlet pipelines, and the water inlet pipelines are communicated with the spherical cavities. The lower die is connected with a plurality of water outlet pipelines which are communicated with the spherical cavity; the heat conductivity coefficient of the water inlet pipeline is lower than that of the upper die, and the heat conductivity coefficient of the water outlet pipeline is lower than that of the lower die. By means of the arrangement, the freezing speed of water flow at the water outlet of the water inlet pipeline can be lower than that of the inner wall of the spherical cavity, and the blocking phenomenon caused by too fast freezing of the water outlet of the water inlet pipeline is prevented; and the icing speed of the water flow at the water outlet of the water outlet pipeline can be slower than the icing speed of the inner wall of the spherical cavity, so that the water outlet of the water outlet pipeline is prevented from being blocked due to too fast icing, and the forming effect of the spherical ice is better.

Description

Technical Field

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

[0002] An ice machine is a refrigeration mechanical device that generates ice by cooling water through an evaporator through a refrigeration system. Ice machines can be divided into cylindrical ice, square ice, and spherical ice according to the shape of the ice. In recent years, spherical ice has become more and more popular among users. The main purpose of spherical ice is to drink with alcohol. The transparent spherical ice is round and not easy to melt. It can fully reduce the temperature of the wine while reducing the dilution of the wine. At present, it is difficult to make spherical ice. Generally, large blocks of ice are hand-carved, or large ice blocks are melted into spherical ice using spherical molds.

[0003] The Chinese invention patent with patent publication number CN115854617A discloses a spherical ice maker, including an upper mold and a lower mold, the lower mold is rotatably docked on the upper mold, the upper mold has at least one hemispherical upper mold cavity, the lower mold has at least one hemispherical lower mold cavity, the upper mold cavity and the lower mold cavity are docked to form a spherical cavity for condensing water flow; an evaporation tube, the evaporation tube is arranged around the upper side of the upper mold for cooling the upper mold cavity; a water tank, the water tank is supported by the bottom side of the lower mold, a water discharge hole is opened on the side of the lower mold facing the water tank, and a water spray hole and a water return hole docked with the water discharge hole are opened on the water tank; a spray mechanism, the spray mechanism includes a nozzle arranged in the water spray hole and spraying water toward the spherical cavity, and a spray water pump arranged outside the water tank and used to pump water in the water tank into the nozzle for spraying. The prior art has structural deficiencies in that the water inlet and the water outlet are both arranged on the bottom of the lower mold. When making ice, the water inlet and the water outlet are easily blocked due to excessive freezing, resulting in poor effect of forming spherical ice.

[0004] Therefore, there is still room for improvement and development in the existing technology. Utility Model Content

[0005] In view of the problem in the prior art that the water inlet and the water outlet are easily blocked due to excessive freezing, the utility model provides an ice-making device and an ice-making machine, which can make the freezing speed of the water flow at the water outlet of the water inlet pipe slower than the freezing speed of the inner wall of the spherical cavity, thereby preventing the water outlet of the water inlet pipe from being blocked due to excessive freezing; and can make the freezing speed of the water flow at the water outlet of the water outlet pipe slower than the freezing speed of the inner wall of the spherical cavity, thereby preventing the water outlet of the water outlet pipe from being blocked due to excessive freezing, thereby ensuring a better effect of forming spherical ice.

[0006] In order to achieve the above purpose, the technical solution applied by the utility model is as follows:

[0007] An ice-making device comprises an upper mold and a lower mold, wherein the lower mold is rotatably connected to the upper mold, the upper mold is provided with a plurality of hemispherical upper mold cavities, the lower mold is provided with a plurality of hemispherical lower mold cavities, the upper mold cavity and the lower mold cavity cooperate to form a plurality of spherical cavities for condensation of water flow, a heat-conducting device for cooling the upper mold cavity is provided on the upper side of the upper mold, the upper mold is connected with a plurality of water inlet pipes, the water inlet pipes are communicated with the spherical cavities, the lower mold is connected with a plurality of water outlet pipes, the water outlet pipes are communicated with the spherical cavities; the thermal conductivity of the water inlet pipes is lower than that of the upper mold, and the thermal conductivity of the water outlet pipes is lower than that of the lower mold. The utility model is configured in this way, so that the freezing speed of the water flow at the water outlet of the water inlet pipe can be slower than the freezing speed of the inner wall of the spherical cavity, preventing the water outlet of the water inlet pipe from freezing too quickly and causing blockage; and the freezing speed of the water flow at the water outlet of the water outlet pipe can be slower than the freezing speed of the inner wall of the spherical cavity, preventing the water outlet of the water outlet pipe from freezing too quickly and clogging, thereby ensuring a better effect of spherical ice forming, and the water inlet pipe and the water outlet pipe do not affect the thermal conductivity of the upper mold and the lower mold. In practical applications, the water inlet pipe is preferably made of silicone or plastic material; the upper mold is preferably made of aluminum alloy. It should be noted that each spherical cavity is respectively connected to an inlet pipe and an outlet pipe, and the ice making efficiency is higher; in practical applications, the heat conductive device is fixed by an upper cover plate so that the heat conductive device fits the upper side of the upper mold.

[0008] In this embodiment, the center line of the water inlet pipe, the water outlet end point of the water inlet pipe and the center point of the spherical cavity form an angle. The utility model is configured in this way so that after the water flows from the water inlet pipe 1 into the spherical cavity, the water flows along the inner wall of the spherical cavity without splashing, and the water forms a vortex in the spherical cavity, thereby reducing the temperature difference at different positions in the spherical cavity, and achieving a better effect of spherical ice formation; preferably, the angle formed by the center line of the water inlet pipe, the water outlet end point of the water inlet pipe and the center point of the spherical cavity is 80°-100° for best; more specifically, the water inlet pipe is tangent to or approximately tangent to the spherical cavity, and the water outlet of the water inlet pipe is far away from the center point of the spherical cavity;

[0009] In this embodiment, the water inlet pipe is detachably connected to the upper mold, and the water outlet pipe is detachably connected to the lower mold, and the water outlet flow rate of the water outlet pipe is greater than the water inlet flow rate of the water inlet pipe. The utility model is configured in this way so that the water pressure in the spherical cavity will not be too high, thereby ensuring the effect of spherical ice forming. In practical applications, the aperture of the water outlet pipe can be designed to be larger than the aperture of the water inlet pipe, and the number of water outlet pipes can also be designed to be greater than the number of water inlet pipes. The water inlet pipe is detachably connected to the upper mold, and the lower mold and the water outlet pipe are detachably connected, which is convenient for loading and unloading and maintenance and cleaning.

[0010] According to the above scheme, the multiple spherical cavities are connected through the connecting port. In the prior art, the multiple spherical cavities are independently arranged, and the temperature difference between the multiple spherical cavities is large when making ice. However, the utility model is arranged in this way, and the water flow can flow between the multiple spherical cavities, which can increase the contact area and reduce the temperature difference between the multiple spherical cavities when making ice.

[0011] According to the above scheme, a notch for installing the water inlet pipe is provided on one side of the upper mold, the water inlet pipe is connected to the spherical cavity through the notch, a rib is provided in the notch, a strip groove is provided on the water inlet pipe, and the strip groove is connected to the rib by a clamping connection. The utility model is arranged in this way, by providing a rib in the notch, it can be convenient to guide the water inlet pipe during installation. During installation, after the strip groove of the water inlet pipe is connected to the rib by a clamping connection and positioning, it is locked by bolts, which is convenient for loading and unloading. In actual applications, the notch is in the shape of a step that is wide at the top and narrow at the bottom. The wider part of the notch is reserved for one or more positions for setting screw holes or buckles, and there are ribs at the narrower part of the notch. The water inlet pipe is in the shape of a step that is wide at the top and narrow at the bottom. The water inlet pipe has at least two parts, the first part is wider, and the second part is narrower. The wider part of the first part of the water inlet pipe is reserved for one or more positions for setting screw holes or buckles, and there is a strip groove at the narrower bottom of the second part of the water inlet pipe. The strip groove can cooperate with the ribs in the notch for positioning, and the second part of the water inlet pipe extends a water inlet groove obliquely downward, and there is a corresponding notch at the corresponding part of the notch.

[0012] According to the above scheme, the water inlet of the water inlet pipe is connected with a buffer device, and a connected inner cavity and a buffer cavity are formed in the buffer device. The inner cavity is provided with a water inlet channel and a water outlet channel, and the center line of the water inlet channel is in the same straight line as the center line of the buffer cavity, and the water outlet channel is connected with the water inlet pipe. The utility model is arranged so that the water inlet channel is directly opposite to the buffer cavity, so that the impact force of the water flow just entering the buffer device can be removed, so that the water flow flows smoothly through the inner cavity, reducing the flow difference of the water flow through different water inlet pipes, reducing the influence of the speed of the water flow on the formation of spherical ice in different spherical cavities, and ensuring the consistency of the shape of the spherical ice in different spherical cavities. In practical applications, if the buffer cavity is not provided, similar effects can be achieved by increasing the volume of the inner cavity.

[0013] According to the above scheme, the upper mold is coated with an upper mold shell on the outside, and the lower mold is coated with a lower mold shell on the outside. The utility model is configured such that the upper mold shell is used to reduce the area of ​​direct contact between the upper mold and the air, thereby improving the cooling efficiency. Similarly, the lower mold shell is used to reduce the area of ​​direct contact between the lower mold and the air, thereby improving the cooling efficiency. It should be noted that a shoulder is provided at one end of the water outlet pipe close to the lower mold, and the shoulder can realize axial positioning of the water outlet pipe. One side of the shoulder is in an arc shape and fits with the lower mold shell, thereby limiting the circumferential rotation of the water outlet pipe.

[0014] According to the above scheme, the upper mold and the lower mold are rotatably connected by a hinge assembly; the hinge assembly includes a first turning page, a hinge shaft and a second turning page, the first turning page and the second turning page are hinged on the hinge shaft, the first turning page is fixed to the upper mold or the lower mold, and the second turning page is fixed to the lower mold or the upper mold. The utility model is arranged in this way so that the upper mold and the lower mold can rotate around the hinge shaft, which is convenient for closing and opening the upper mold and the lower mold; more specifically, it is convenient for making and removing ice.

[0015] According to the above solution, the lower mold is provided with an annular groove, and a sealing ring is provided in the annular groove. The utility model is arranged in this way, so that when the upper mold and the lower mold are in a closed state, the sealing ring can prevent water from flowing out of the spherical cavity along the closed gap.

[0016] An ice-making machine comprises a refrigeration assembly, a water pump, a water tank and the above-mentioned ice-making device, wherein the refrigeration assembly is connected to the heat-conducting device of the ice-making device through a refrigerant pipeline, the water inlet end of the water pump is connected to the water tank through a water flow pipeline, the water outlet end of the water pump is connected to the buffer device of the ice-making device through a water flow pipeline, and the water outlet pipeline of the ice-making device is connected to the water tank through a return pipe. The utility model is arranged in such a way that when making ice, the refrigeration assembly (including a condenser, a heat dissipation fan and a compressor) sends the refrigerant into the heat-conducting device, and the refrigerant absorbs the heat of the spherical cavity and returns to the refrigeration assembly to form an ice-making cycle; its ice-making principle is: the water pump pumps water in the water tank to the buffer device, enters the spherical cavity through the water inlet pipeline, and the water flows along the inner wall of the spherical cavity under the action of inertia, and the flowing water can reduce the temperature difference of each position in the spherical cavity. After the temperature in the spherical cavity is reduced to the freezing temperature, the flowing water begins to freeze on the inner wall of the spherical cavity, and the water then flows out through the water outlet pipeline and flows back to the water tank along the return pipe to form a water flow cycle.

[0017] Beneficial effects of the utility model:

[0018] The utility model is configured such that the thermal conductivity of the water inlet pipe is lower than that of the upper mold, and the thermal conductivity of the water outlet pipe is lower than that of the lower mold, so that the freezing speed of the water flow at the water outlet of the water inlet pipe can be slower than the freezing speed of the inner wall of the spherical cavity, thereby preventing the water outlet of the water inlet pipe from freezing too quickly and causing blockage; and the freezing speed of the water flow at the water outlet of the water outlet pipe can be slower than the freezing speed of the inner wall of the spherical cavity, thereby preventing the water outlet of the water outlet pipe from freezing too quickly and causing blockage, thereby ensuring a better effect of spherical ice forming, and the water inlet pipe and the water outlet pipe do not affect the thermal conductivity of the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional schematic diagram of an ice-making device of the utility model;

[0020] Figure 2 This is a schematic diagram of the closed state of the ice-making device of the utility model;

[0021] Figure 3 This is a schematic diagram of the ice-making device of the utility model in the open state;

[0022] Figure 4 This is a schematic diagram of the explosion of the upper mold of the utility model;

[0023] Figure 5 This is a schematic diagram of the explosion of the lower mold of the utility model;

[0024] Figure 6 It is a schematic diagram of the hinge assembly of the utility model;

[0025] Figure 7 This is a schematic diagram of the assembly of the water inlet pipe and the upper mold of the utility model;

[0026] Figure 8 It is a cross-sectional schematic diagram of the water inlet pipe of the utility model;

[0027] Fig. 9 It is a cross-sectional schematic diagram of the buffer device of the utility model;

[0028] Fig.10 This is a schematic diagram of an ice making machine of the utility model;

[0029] Fig.11 It is a schematic diagram of water flow circulation of the utility model.

[0030] In the figure:

[0031] 1. Water inlet pipe; 2. Upper mold shell; 3. Upper mold; 4. Heat conducting device; 5. Upper cover plate; 6. Buffer device; 7. Lower mold shell; 8. Lower mold; 9. Sealing ring; 10. Water outlet pipe; 11. Turning page 1; 12. Hinge shaft; 13. Turning page 2; 14. Connecting port; 15. Notch; 16. Rib; 17. Strip groove; 18. Notch; 19. Annular groove; 20. Inner cavity; 21. Buffer cavity; 22. Water inlet channel; 23. Water outlet channel; 24. Shoulder; 25. Hinge assembly; 26. Refrigeration assembly; 27. Water pump; 28. Water tank; 29. ​​Refrigerant pipe; 30. Water flow pipe. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is described below in conjunction with the accompanying drawings and embodiments.

[0033] like Figures 1 to 9As shown, an ice-making device described in the utility model comprises an upper mold 3 and a lower mold 8, wherein the lower mold 8 is rotatably connected to the upper mold 3, the upper mold 3 is provided with a plurality of hemispherical upper mold cavities, the lower mold 8 is provided with a plurality of hemispherical lower mold cavities, the upper mold cavity and the lower mold cavity cooperate to form a plurality of spherical cavities for condensation of water flow, a heat-conducting device 4 for cooling the upper mold cavity is provided on the upper side of the upper mold 3, the upper mold 3 is connected with a plurality of water inlet pipes 1, the water inlet pipes 1 are communicated with the spherical cavity, the lower mold 8 is connected with a plurality of water outlet pipes 10, the water outlet pipes 10 are communicated with the spherical cavity; the thermal conductivity of the water inlet pipe 1 is lower than that of the upper mold 3, and the thermal conductivity of the water outlet pipe 10 is lower than that of the lower mold 8. The utility model is configured in this way, so that the freezing speed of the water flow at the outlet of the water inlet pipe 1 can be slower than the freezing speed of the inner wall of the spherical cavity, preventing the water outlet of the water inlet pipe 1 from freezing too quickly and causing blockage; and the freezing speed of the water flow at the outlet of the water outlet pipe 10 can be slower than the freezing speed of the inner wall of the spherical cavity, preventing the water outlet of the water outlet pipe 10 from freezing too quickly and blocking, thereby ensuring a better effect of spherical ice forming, and the water inlet pipe 1 and the water outlet pipe 10 do not affect the thermal conductivity of the upper mold 3 and the lower mold 8. In practical applications, the water inlet pipe 1 is preferably made of silicone or plastic material; the upper mold 3 is preferably made of aluminum alloy. It should be noted that each spherical cavity is respectively connected to the water inlet pipe 1 and the water outlet pipe 10, and the ice making efficiency is higher; in practical applications, the heat conductive device 4 is fixed by the upper cover plate 5, so that the heat conductive device 4 is fitted with the upper side of the upper mold 3.

[0034] In this embodiment, the center line of the water inlet pipe 1, the water outlet end point of the water inlet pipe 1 and the center point of the spherical cavity form an angle. The utility model is configured in this way so that after the water flows from the water inlet pipe 1 into the spherical cavity, the water flows along the inner wall of the spherical cavity without splashing, and the water forms a vortex in the spherical cavity, thereby reducing the temperature difference at different positions in the spherical cavity, and the effect of spherical ice formation is better; preferably, the angle formed by the center line of the water inlet pipe 1, the water outlet end point of the water inlet pipe 1 and the center point of the spherical cavity is 80°-100° for best; more specifically, the water inlet pipe 1 is tangent or approximately tangent to the spherical cavity, and the water outlet of the water inlet pipe 1 is far away from the center point of the spherical cavity;

[0035] In this embodiment, the water inlet pipe 1 is detachably connected to the upper mold 3, and the water outlet pipe 10 is detachably connected to the lower mold 8, and the water outlet flow of the water outlet pipe 10 is greater than the water inlet flow of the water inlet pipe 1. The utility model is configured in this way so that the water pressure in the spherical cavity will not be too high, thereby ensuring the effect of spherical ice forming. In practical applications, the aperture of the water outlet pipe 10 can be designed to be larger than the aperture of the water inlet pipe 1, and the number of water outlet pipes 10 can also be designed to be greater than the number of water inlet pipes 1. The water inlet pipe 1 is detachably connected to the upper mold 3, and the lower mold 8 and the water outlet pipe 10 are detachably connected, which is convenient for loading and unloading and maintenance and cleaning.

[0036] In this embodiment, the plurality of spherical cavities are connected through the connecting port 14. In the prior art, the plurality of spherical cavities are independently arranged, and the temperature difference between the plurality of spherical cavities is large when making ice. However, the present invention is arranged in this way, and the water flow can flow between the plurality of spherical cavities, thus increasing the contact area and reducing the temperature difference between the plurality of spherical cavities when making ice.

[0037] In this embodiment, a notch 15 for installing the water inlet pipe 1 is provided on one side of the upper mold 3. The water inlet pipe 1 is connected to the spherical cavity through the notch 15. A rib 16 is provided in the notch 15. A strip groove 17 is provided on the water inlet pipe 1. The strip groove 17 is connected to the rib 16 by locking. The utility model is arranged in this way. By setting the rib 16 in the notch 15, it can be convenient to guide the water inlet pipe 1 when installing. When installing, the strip groove 17 of the water inlet pipe 1 is locked and connected with the rib 16, and then locked by bolts, which is convenient for loading and unloading. In actual applications, the notch 15 is in the shape of a step that is wider at the top and narrower at the bottom. One or more positions for setting screw holes or buckles are reserved at the wider part of the notch 15, and there are ribs 16 at the narrower part of the notch 15. The water inlet pipe 1 is in the shape of a step that is wider at the top and narrower at the bottom. The water inlet pipe 1 has at least two parts, the first part is wider, and the second part is narrower. One or more positions for setting screw holes or buckles are reserved at the wider part of the first part of the water inlet pipe 1, and there is a strip groove 17 at the narrower bottom of the second part of the water inlet pipe 1. The strip groove 17 can be positioned in coordination with the ribs 16 in the notch 15, and a water inlet groove is extended obliquely downward from the second part of the water inlet pipe 1, and there is a corresponding notch 18 at the corresponding part of the notch 15.

[0038] In this embodiment, the water inlet of the water inlet pipe 1 is connected with a buffer device 6, and a connected inner cavity 20 and a buffer cavity 21 are formed in the buffer device 6. The inner cavity 20 is provided with a water inlet channel 22 and a water outlet channel 23. The center line of the water inlet channel 22 is in the same straight line as the center line of the buffer cavity 21, and the water outlet channel 23 is connected with the water inlet pipe 1. The utility model is arranged so that the water inlet channel 22 is directly opposite to the buffer cavity 21, so that the impact force of the water flow when it just enters the buffer device 6 can be removed, so that the water flow flows smoothly through the inner cavity 20, reducing the flow difference of the water flow through different water inlet pipes 1, reducing the influence of the speed of the water flow on the formation of spherical ice in different spherical cavities, and ensuring the consistency of the shape of the spherical ice in different spherical cavities. In practical applications, if the buffer cavity 21 is not provided, increasing the volume of the inner cavity 20 can also achieve a similar effect.

[0039] In this embodiment, the upper mold 3 is coated with an upper mold shell 2, and the lower mold 8 is coated with a lower mold shell 7. The utility model is configured such that the upper mold shell 2 is used to reduce the area of ​​direct contact between the upper mold 3 and the air, thereby improving the refrigeration efficiency. Similarly, the lower mold shell 7 is used to reduce the area of ​​direct contact between the lower mold 8 and the air, thereby improving the refrigeration efficiency. It should be noted that a shoulder 24 is provided at one end of the water outlet pipe 10 close to the lower mold 8, and the shoulder 24 can realize axial positioning of the water outlet pipe 10. One side of the shoulder 24 is in an arc shape and fits with the lower mold shell 7, thereby limiting the circumferential rotation of the water outlet pipe 10.

[0040] In this embodiment, the upper mold 3 and the lower mold 8 are rotatably connected via a hinge assembly 25; the hinge assembly 25 includes a first turning page 11, a hinge shaft 12, and a second turning page 13; the first turning page 11 and the second turning page 13 are hinged on the hinge shaft 12; the first turning page 11 is fixed to the upper mold 3 or the lower mold 8; the second turning page 13 is fixed to the lower mold 8 or the upper mold 3. The utility model is configured in this way so that the upper mold 3 and the lower mold 8 can rotate around the hinge shaft 12, which is convenient for closing and opening the upper mold 3 and the lower mold 8; more specifically, it is convenient for making and removing ice.

[0041] In this embodiment, the lower mold 8 is provided with an annular groove 19, and a sealing ring 9 is provided in the annular groove 19. The utility model is arranged in this way, so that when the upper mold 3 and the lower mold 8 are in a closed state, the sealing ring 9 can prevent water from flowing out of the spherical cavity along the closed gap.

[0042] like Fig.10 and Fig.11As shown, an ice-making machine includes a refrigeration component 26, a water pump 27, a water tank 28 and the above-mentioned ice-making device, wherein the refrigeration component 26 is connected to the heat-conducting device 4 of the ice-making device through a refrigerant pipe 29, the water inlet end of the water pump 27 is connected to the water tank 28 through a water flow pipe 30, the water outlet end water flow pipe 30 of the water pump 27 is connected to the buffer device 6 of the ice-making device, and the water outlet pipe 10 of the ice-making device is connected to the water tank 28 through a return pipe. The utility model is arranged as follows: when making ice, the refrigeration component 26 (including the condenser, the cooling fan and the compressor) sends the refrigerant into the heat-conducting device 4, and the refrigerant absorbs the heat of the spherical cavity and returns to the refrigeration component 26, forming an ice-making cycle; its ice-making principle: the water pump 27 pumps the water in the water tank 28 to the buffer device 6, and enters the spherical cavity through the water inlet pipe 1. Under the action of inertia, the water flow will flow along the inner wall of the spherical cavity. The flowing water flow can reduce the temperature difference of each position in the spherical cavity. After the temperature in the spherical cavity drops to the freezing temperature, the flowing water begins to freeze on the inner wall of the spherical cavity, and the water flow then flows out of the water outlet pipe 10 and flows back to the water tank 28 along the return pipe, forming a water flow cycle.

[0043] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the protection scope of the present invention.

Claims

1. An ice-making device, comprising an upper mold and a lower mold, wherein the lower mold is rotatably connected to the upper mold, the upper mold is provided with a plurality of hemispherical upper mold cavities, the lower mold is provided with a plurality of hemispherical lower mold cavities, the upper mold cavity and the lower mold cavity cooperate to form a plurality of spherical cavities for condensation of water flow, and a heat-conducting device for cooling the upper mold cavity is provided on the upper side of the upper mold, characterized in that: The upper mold is connected to a plurality of water inlet pipes, the water inlet pipes are communicated with the spherical cavity, and the lower mold is connected to a plurality of water outlet pipes, the water outlet pipes are communicated with the spherical cavity; The thermal conductivity of the water inlet pipe is lower than that of the upper mold, and the thermal conductivity of the water outlet pipe is lower than that of the lower mold.

2. An ice-making device according to claim 1, characterized in that: An angle is formed between the center line of the water inlet pipe, the water outlet end point of the water inlet pipe and the center point of the spherical cavity.

3. The ice-making device according to claim 1, characterized in that: The water inlet pipe is detachably connected to the upper mold, and the water outlet pipe is detachably connected to the lower mold. The water outlet flow rate of the water outlet pipe is greater than the water inlet flow rate of the water inlet pipe.

4. The ice-making device according to claim 1, characterized in that: The multiple spherical cavities are connected through the connecting ports.

5. The ice-making device according to claim 1, characterized in that: A notch for installing a water inlet pipe is provided on one side of the upper mold, the water inlet pipe is connected with the spherical cavity through the notch, ribs are provided in the notch, and a strip groove is provided on the water inlet pipe, and the strip groove is connected to the ribs in a clamping manner.

6. The ice-making device according to claim 1, characterized in that: The water inlet of the water inlet pipe is connected to a buffer component, and a connected inner cavity and a buffer cavity are formed in the buffer component. The inner cavity is provided with a water inlet channel and a water outlet channel. The center line of the water inlet channel is in the same straight line as the center line of the buffer cavity, and the water outlet channel is connected to the water inlet pipe.

7. The ice-making device according to claim 1, characterized in that: The upper mold is externally covered with an upper mold shell, and the lower mold is externally covered with a lower mold shell.

8. The ice-making device according to claim 1, characterized in that: The upper mold and the lower mold are rotatably connected via a hinge assembly; the hinge assembly includes a turning page 1, a hinge shaft and a turning page 2, the turning page 1 and the turning page 2 are hinged on the hinge shaft, the turning page 1 is fixed to the upper mold or the lower mold, and the turning page 2 is fixed to the lower mold or the upper mold.

9. An ice-making device according to claim 8, characterized in that: The lower mold is provided with an annular groove, and a sealing ring is arranged in the annular groove.

10. An ice making machine, characterized in that: It comprises a refrigeration component, a water pump, a water tank and an ice-making device as described in any one of claims 1 to 9, wherein the refrigeration component is connected to the heat-conducting device of the ice-making device through a refrigerant pipe, the water inlet end of the water pump is connected to the water tank through a water flow pipe, the water flow pipe at the water outlet end of the water pump is connected to the buffer device of the ice-making device, and the water outlet pipe of the ice-making device is connected to the water tank through a return pipe.

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