Ice maker capable of efficiently refrigerating
By adopting a spiral contact design between the evaporator sleeve and the ice-making tube in the ice maker, the contact area between the refrigerant and the ice-making tube is increased, solving the problem of poor heat exchange effect in traditional ice makers, achieving efficient cooling, and simplifying the installation process of copper tubes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING YANXUE INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional ice makers have poor heat exchange between refrigerant and water, and the copper tubes are in line contact with the side walls of the ice-making tubes, resulting in a small heat exchange area and poor cooling effect. In addition, fixing the copper tubes is cumbersome.
An evaporator sleeve is fitted onto the ice-making tube. The evaporator sleeve has a spiral evaporation channel inside, fixed parts at both ends, and a spiral extension of an outward convex part and an inward concave part in the middle. The inward concave part fits into the ice-making tube. The evaporator sleeve is formed by die casting. The refrigerant is guided through the evaporation channel to increase the contact area with the ice-making tube.
It increases the contact area and heat exchange efficiency between the refrigerant and the ice-making tube, thereby improving the cooling effect. At the same time, it is easy to disassemble and assemble, and enhances the structural strength.
Smart Images

Figure CN224246496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ice maker technology, specifically to a high-efficiency refrigeration ice maker. Background Technology
[0002] An ice maker is a refrigeration machine that uses a refrigeration system to cool water through an evaporator to produce ice. It employs a refrigeration system with water as the carrier, and produces ice by passing the water through a device when powered on. The shape of the ice produced varies depending on the evaporator's principle and the production method.
[0003] The structure of the ice-making inner tank of a traditional ice maker is shown in the attached figure. Figure 7 As shown, the copper tubes of the evaporator are spirally wound around the side wall of the ice-making tube, and heat exchange occurs between the refrigerant inside the copper tube and the water inside the ice-making tube. However, this structure has the following drawbacks: the refrigerant and water are separated by the ice-making tube and the copper tube, resulting in poor heat exchange; furthermore, the contact between the copper tube and the side wall of the ice-making tube is line contact, resulting in a small heat exchange area and consequently poor cooling performance of the ice-making inner tank. In addition, the copper tubes need to be welded to the ice-making tube, making the manufacturing process more complicated.
[0004] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to this case. Summary of the Invention
[0005] The main purpose of this invention is to provide an ice maker with high-efficiency refrigeration, which allows the refrigerant to have more sufficient contact with the ice-making tube, thereby effectively improving the ice-making effect of the ice maker.
[0006] To achieve the above objectives, the solution of this utility model is:
[0007] A high-efficiency ice maker includes a cabinet and an ice-making module housed within the cabinet. The ice-making module includes an ice storage tank and an ice-making inner liner. The upper end of the ice-making inner liner is connected to the ice storage tank. The ice-making inner liner includes an outer shell, an ice-making tube, and an evaporation sleeve housed inside the outer shell. The evaporation sleeve is fitted onto the ice-making tube and has a spiral evaporation channel inside. The evaporation sleeve has an input pipe and an output pipe connected to the evaporation channel.
[0008] Furthermore, the evaporator sleeve has fixing parts at both ends, and the middle part of the evaporator sleeve has an outwardly protruding part and an inwardly concave part arranged at intervals. The outwardly protruding part and the inwardly concave part extend spirally around the central axis of the evaporator sleeve.
[0009] Furthermore, the inner wall of the concave portion abuts against and fits against the outer wall of the ice-making tube.
[0010] Furthermore, the evaporation sleeve is formed by a die-casting process.
[0011] Furthermore, the evaporator sleeve is made of copper or stainless steel.
[0012] Furthermore, the ice-making tube is equipped with a rotating shaft, the rotating shaft is equipped with spiral blades, and the cabinet is equipped with a motor, the power output end of the motor is connected to the lower end of the rotating shaft.
[0013] Furthermore, the ice storage bucket includes a main bucket body, an outer bucket sleeve, and a fixing sleeve. The outer bucket sleeve is fitted onto the main bucket body, and the fixing sleeve is connected to the lower end of the main bucket body.
[0014] Furthermore, the fixing sleeve is connected to the main barrel body by threads.
[0015] Compared to existing technologies, the advantages of this new technology lie in the fact that the refrigerant is guided through the evaporation channel within the evaporator sleeve, allowing it to directly contact the ice-making tube and significantly improving the cooling effect. Furthermore, the semi-circular cross-section of the evaporation channel effectively increases the contact area between the refrigerant and the ice-making tube, further enhancing the cooling effect and making the ice maker more efficient. In addition, the evaporator sleeve is formed using a die-casting process, making assembly and disassembly with the ice-making tube easier and also improving structural strength. Attached Figure Description
[0016] Figure 1 This is a three-dimensional view of the external structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0018] Figure 3 This is another internal structural diagram of the present invention.
[0019] Figure 4 This is a three-dimensional diagram of the connection structure between the ice-making tube and the evaporation jacket.
[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the ice-making tube and the evaporation jacket.
[0021] Figure 6 This is a three-dimensional view of the external structure of an ice storage bucket.
[0022] Figure 7 A three-dimensional diagram of the ice liner in a traditional ice-making machine.
[0023] In the diagram: Cabinet 1, Ice storage tank 2, Main tank body 21, Outer tank sleeve 22, Fixing sleeve 23, Outer shell sleeve 31, Ice making tube 32, Evaporation sleeve 33, Fixing part 331, Outer protrusion 332, Inner recess 333, Evaporation channel 34, Input pipe 35, Output pipe 36, Rotating shaft 37, Spiral blade 38, Motor 39, Water storage tank 41, Water pump 42, Compressor 43, Condensation mechanism 44, Condensation tube 441, Fan 442. Detailed Implementation
[0024] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.
[0025] like Figure 1-4 As shown, a high-efficiency ice maker includes a cabinet 1 and an ice-making module housed within the cabinet 1. The ice-making module includes an ice storage tank 2 and an ice-making inner liner fixedly connected within the cabinet 1. The upper end of the ice-making inner liner communicates with the interior of the ice storage tank 2, and the ice outlet of the ice storage tank communicates with the ice outlet of the cabinet 1. Ice blocks in the ice-making inner liner are conveyed upwards to the ice storage tank and then discharged from the ice outlet of the cabinet 1. The ice-making inner liner includes an outer shell 31, and an ice-making tube 32 and an evaporation sleeve 33 housed inside the outer shell 31. Both the ice-making tube 32 and the evaporation sleeve 33 can be made of copper or stainless steel. The evaporation sleeve 33 is fitted onto the ice-making tube 32 and has a spiral evaporation channel 34 inside. The evaporation sleeve 33 has an input pipe 35 and an output pipe 36 communicating with the evaporation channel 34.
[0026] In this embodiment, the evaporator sleeve 33 has fixing portions 331 at both ends. The fixing portions 331 can be used to firmly fix the evaporator sleeve 33 to the ice-making tube 32 by pressing or welding. The middle part of the evaporator sleeve 33 has an outwardly protruding portion 332 and an inwardly concave portion 333 arranged at intervals. The outwardly protruding portion 332 and the inwardly concave portion 333 extend spirally around the central axis of the evaporator sleeve 33. The inner sidewall of the inwardly concave portion 333 abuts against and fits against the outer sidewall of the ice-making tube 32, so that the outwardly protruding portion 332 and the sidewall of the ice-making tube 32 form an evaporation flow channel 34. The evaporation flow has a semi-circular structure, which can effectively increase the contact area between the refrigerant and the ice-making tube 32. In addition, the refrigerant can contact the ice-making tube 32 for heat exchange, making the cooling effect more efficient.
[0027] In this embodiment, the evaporator sleeve 33 is formed by die casting, which makes the evaporator sleeve 33 stronger.
[0028] Specifically, to transport the ice blocks inside the ice-making tube 32, a rotating shaft 37 is provided inside the ice-making tube 32, and a spiral blade 38 is provided on the rotating shaft 37. A motor 39 is provided inside the cabinet 1, and the power output end of the motor 39 is connected to the lower end of the rotating shaft 37 through a reducer. With the above structure, the rotating shaft 37 is driven to rotate by the motor 39, causing the spiral blade 38 to transport the formed ice blocks inside the ice-making tube 32 upwards to the ice storage tank 2 for storage.
[0029] In this embodiment, the ice storage tank 2 includes a main body 21, an outer sleeve 22, and a fixing sleeve 23. The outer sleeve 22 is fitted onto the main body 21, and the fixing sleeve 23 is threadedly connected to the lower end of the main body 21. Both the main body 21 and the outer sleeve 22 can be made of transparent plastic material. In use, the outer sleeve 22 is first fitted onto the main body 21 from bottom to top, and then the fixing sleeve 23 is threadedly connected to the threaded section at the lower end of the main body 21 to fix the outer sleeve 22. The threaded structure is a conventional connection structure and will not be described in detail here. In this way, when the user wants to replace water with milk or coffee to make ice, the freezing points of the liquids are different, and the ice cubes will form differently. Therefore, during the initial ice-making process, the user can observe the forming state of the ice cubes through the transparent main body 21 and outer sleeve 22, thereby adjusting the refrigerant parameters to ensure the quality of the ice cubes. When no observation is required, the outer sleeve 22 can be replaced with an outer sleeve 22 made of foam material, which can provide a certain heat preservation effect for the main body 21.
[0030] In this embodiment, the ice-making module also includes a water storage tank 41, a water pump 42, a compressor 43, and a condensing mechanism 44. The inlet of the water pump 42 is connected to a water supply pipe, and the outlet of the water pump 42 is connected to the water storage tank 41. The outlet of the water storage tank 41 is connected to the inside of the ice-making tube 32. The water pump 42 pumps water into the water storage tank 41 through the water supply pipe. A liquid supply pump can be installed inside the water storage tank 41 to deliver the water in the water storage tank 41 to the ice-making tube 32. The condensing mechanism 44 includes a condenser tube 441 and a fan 442. The outlet of the compressor 43 is connected to the condenser tube 441, and the inlet of the compressor 43 is connected to the evaporator sleeve 33 through an output pipe 36. The evaporator sleeve 33 and the condenser tube 441 are connected through an input pipe 35, and an expansion valve is provided on the input pipe 35. During ice making, water is delivered to the water storage tank 41 and the ice-making tube 32 by the water pump 42, and the compressor 43 compresses the refrigerant gas and delivers it to the condenser tube 441. The condenser 441 cools and liquefies the compressed refrigerant gas through the airflow from the fan 442, and the expansion valve expands the liquefied refrigerant. The evaporator 33 vaporizes the liquefied refrigerant that has expanded through the expansion valve and cools the ice-making tube 32, thereby achieving the effect of ice making.
[0031] Compared with existing technologies, the advantages of this new technology lie in the fact that the refrigerant is guided through the evaporation channel 34 within the evaporation sleeve 33, allowing the refrigerant to directly contact the ice-making tube 32, thus significantly improving the cooling effect. Furthermore, the semi-circular cross-section of the evaporation channel 34 effectively increases the contact area between the refrigerant and the ice-making tube 32, further enhancing the cooling effect and making the ice maker more efficient. In addition, the evaporation sleeve 33 is formed using a die-casting process, making assembly and disassembly with the ice-making tube 32 easier, while also improving structural strength.
[0032] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. A high-efficiency ice maker, characterized in that, The device includes a cabinet and an ice-making module installed inside the cabinet. The ice-making module includes an ice storage tank and an ice-making inner liner. The upper end of the ice-making inner liner is connected to the ice storage tank. The ice-making inner liner includes an outer shell and an ice-making tube and an evaporation sleeve installed inside the outer shell. The evaporation sleeve is fitted onto the ice-making tube and has a spiral evaporation channel inside. The evaporation sleeve has an input pipe and an output pipe that are connected to the evaporation channel.
2. The high-efficiency refrigeration ice maker as described in claim 1, characterized in that, The evaporator sleeve has fixing parts at both ends and an outwardly protruding part and an inwardly concave part spaced apart in the middle. The outwardly protruding part and the inwardly concave part extend spirally around the central axis of the evaporator sleeve.
3. The high-efficiency refrigeration ice maker as described in claim 2, characterized in that, The inner wall of the concave portion abuts against and fits against the outer wall of the ice-making tube.
4. The high-efficiency refrigeration ice maker as described in claim 1, characterized in that, The evaporation sleeve is formed by die casting.
5. The high-efficiency refrigeration ice maker as described in claim 1, characterized in that, The evaporator sleeve is made of copper or stainless steel.
6. The high-efficiency refrigeration ice maker as described in claim 1, characterized in that, The ice-making tube is equipped with a rotating shaft, and the rotating shaft is equipped with spiral blades. The cabinet is equipped with a motor, and the power output end of the motor is connected to the lower end of the rotating shaft.
7. The high-efficiency refrigeration ice maker as described in claim 1, characterized in that, The ice storage bucket includes a main bucket body, an outer bucket sleeve, and a fixing sleeve. The outer bucket sleeve is fitted onto the main bucket body, and the fixing sleeve is connected to the lower end of the main bucket body.
8. The high-efficiency refrigeration ice maker as described in claim 7, characterized in that, The fixing sleeve is connected to the main barrel body by threads.
9. The high-efficiency refrigeration ice maker as described in claim 1, characterized in that, The ice-making module also includes a water tank, a water pump, a compressor, and a condensing mechanism. The outlet of the water pump is connected to the water tank, and the outlet of the water tank is connected to the inside of the ice-making tube. The condensing mechanism includes a condensing tube and a fan. The compressor is connected to the condensing tube and the evaporating sleeve, and the evaporating sleeve is connected to the condensing tube through an input pipe.