Ice extruding machine with efficient refrigeration evaporator
By designing evaporation channels of various shapes and threaded fin structures in the extrusion ice machine, the problem of uneven refrigerant flow is solved, achieving more efficient cooling and ice-making effects, and making it suitable for confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG AIDEWO ELECTRONIC TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-21
AI Technical Summary
In existing extrusion ice machine refrigeration systems, the refrigerant flows through a single path, resulting in uneven heat exchange and poor cooling in some areas, which affects ice-making efficiency.
The design employs various evaporator channel shapes, including meandering, spiral, and meandering channels, combined with a threaded fin structure, to ensure uniform distribution of refrigerant within the refrigeration chamber and enhance heat exchange efficiency.
It significantly improves the cooling effect and ice-making efficiency, prevents insufficient local cooling, and has a compact and reasonable structure, making it suitable for environments with limited space.
Smart Images

Figure CN224151229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ice maker technology, and in particular to an extrusion ice machine with a high-efficiency refrigeration evaporator. Background Technology
[0002] An extrusion ice machine is a high-efficiency ice-making device that rapidly freezes water into ice using a direct expansion refrigeration evaporator and then uses an extrusion mechanism to peel and break the ice columns, outputting dry, non-sticky ice granules. Its evaporator uses high thermal conductivity materials and incorporates de-icing technology to achieve continuous and efficient ice production. It is suitable for industries such as fisheries, catering, and food processing, and features energy saving, high output, and easy maintenance.
[0003] In existing extrusion refrigeration systems, the refrigerant flow path is usually relatively simple, which may lead to uneven heat exchange. When the refrigerant flows through certain areas, due to excessive flow rate or uneven flow distribution, the heat in some areas is not fully exchanged, resulting in poor cooling effect and insufficient cooling in local areas. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an extrusion ice machine with a high-efficiency refrigeration evaporator. The refrigerant flows through multiple different paths, making heat exchange more complete, thereby significantly improving the refrigeration effect and increasing the ice-making efficiency.
[0005] To solve the above-mentioned technical problems, this utility model provides an extrusion ice machine with a high-efficiency refrigeration evaporator, comprising a base, a refrigeration mechanism, a water storage and delivery mechanism, and an ice extrusion forming mechanism on the base. The ice extrusion forming mechanism includes an inner cylinder with a water inlet at the bottom, which communicates with the water storage and delivery mechanism. A screw-type ice scraper is installed inside the inner cylinder. A first drive motor is installed on the base, driving the screw-type ice scraper to rotate and extrude ice. The refrigeration mechanism includes a condenser and an evaporator. The evaporator includes an outer cylinder located outside the inner cylinder, with a gap between the inner cylinder and the outer cylinder. The outer cylinder has a liquid inlet at its lower end and a steam outlet at its upper end. The steam outlet is connected to the condenser via a capillary tube. Both the liquid inlet and the steam outlet are connected to the refrigeration chamber. The refrigeration chamber has a meandering first evaporation channel, a third evaporation channel, and a spiral second evaporation channel. The inner wall of the outer cylinder has an upper baffle ring and a lower baffle ring. The first evaporation channel is located above the upper baffle ring, the second evaporation channel is located between the upper and lower baffle rings, and the third evaporation channel is located below the lower baffle ring. The second evaporation channel is connected to the first and third evaporation channels.
[0006] The inner wall of the outer cylinder is provided with a plurality of adjacent first upper baffles and first lower baffles, and the first evaporation channel is formed between the first upper baffles and the first lower baffles. A first lower notch is provided below the first upper baffle and a first upper notch is provided above the first lower baffle.
[0007] The inner wall of the outer cylinder is provided with a plurality of adjacent third upper baffles and third lower baffles, and the third evaporation channel is formed between the third upper baffles and the third lower baffles. A third lower notch is provided below the third upper baffle and a third upper notch is provided above the third lower baffle.
[0008] The outer wall of the inner cylinder is provided with a threaded plate, and the threaded plate and the outer cylinder form the second evaporation channel.
[0009] An ice storage and discharging mechanism is provided above the ice extrusion forming mechanism. The ice storage and discharging mechanism includes an ice storage box connected to the inner cylinder, an ice discharging groove on the ice storage box, and an ice discharging port on the ice discharging groove.
[0010] A second drive motor is provided on one side of the ice storage box, and an ice blade is connected to the second drive motor. The ice blade is set in the ice outlet groove.
[0011] The base is also equipped with a compressor, which has a return pipe connected to the steam outlet. The compressor is connected to the condenser.
[0012] The water storage and delivery mechanism includes a water tank and an inlet pipe connected to the water tank, the inlet pipe being connected to the inlet.
[0013] The capillary tube is equipped with a filter.
[0014] The upper end of the screw-type ice scraper is connected to a stirring rod, which is located inside the ice storage box.
[0015] In use, water is first supplied from the water tank to the inner cylinder through the inlet pipe. The compressor compresses the refrigerant and delivers it to the evaporator through a capillary tube. The refrigerant flows circuitously along the third evaporation channel, enters the second evaporation channel and flows around it, then enters the first evaporation channel and flows circuitously again. After absorbing heat from the water, it quickly evaporates into steam. The refrigerant effectively absorbs heat from the water, thereby lowering the temperature of the inner cylinder and rapidly cooling the water to its freezing point, forming an ice layer. The steam enters the return pipe and returns to the compressor, re-entering the refrigeration cycle. During the ice formation process, the screw-type ice scraper starts operating, driven by the first drive motor. The ice scraper rotates along the surface of the inner cylinder, scraping the formed ice layer into the ice storage box. The ice storage and discharging mechanism collects the ice as the ice layer accumulates, while the ice blade, driven by the second drive motor, crushes the ice and outputs it through the ice outlet for user convenience.
[0016] The beneficial effects of this utility model are:
[0017] The refrigerant of this invention flows through multiple different paths, allowing for more thorough heat exchange, thereby significantly improving the cooling effect and increasing ice-making efficiency.
[0018] This invention ensures that the refrigerant is evenly distributed throughout the refrigeration chamber, preventing localized insufficient cooling.
[0019] This utility model has a compact and reasonable structural design, occupies a small area, and is suitable for environments with limited space. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Figure 2 This is a structural schematic diagram of the present invention from another angle.
[0022] Figure 3 This is a schematic diagram of the structure of the ice extrusion forming mechanism of this utility model.
[0023] Figure 4 This is a cross-sectional view of the ice extrusion forming mechanism of this utility model.
[0024] Figure 5 This is a schematic diagram of the outer cylinder of this utility model after it has been unfolded.
[0025] Figure 6 This is a schematic diagram of the ice storage and dispensing mechanism of this utility model.
[0026] Figure 7 This is a schematic diagram of the water storage and delivery mechanism of this utility model.
[0027] Figure 8 This is a schematic diagram of the structure of the condenser and filter of this utility model.
[0028] In the diagram: 1. Base; 2. Refrigeration mechanism; 3. Water storage and delivery mechanism; 4. Ice extrusion forming mechanism; 5. Inner cylinder; 6. Water inlet; 7. Screw-type ice scraper; 8. First drive motor; 9. Condenser; 10. Evaporator; 11. Outer cylinder; 12. Refrigeration chamber; 13. Liquid inlet; 14. Steam outlet; 15. Capillary tube; 16. First evaporation channel; 17. Second evaporation channel; 18. Third evaporation channel; 19. Upper baffle ring; 20. Lower baffle ring; 21. First 21. Upper baffle; 22. First lower baffle; 23. First lower notch; 24. First upper notch; 25. Third upper baffle; 26. Third lower baffle; 27. Third lower notch; 28. Third upper notch; 29. Threaded plate; 30. Ice storage and dispensing mechanism; 31. Ice storage box; 32. Ice dispensing groove; 33. Ice outlet; 34. Second drive motor; 35. Ice blade; 36. Compressor; 37. Air return pipe; 38. Water tank; 39. Water inlet pipe; 40. Filter; 41. Stirring rod. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0030] according to Figures 1 to 8 As shown, this utility model discloses an extrusion ice machine with a high-efficiency refrigeration evaporator, comprising a base 1. The base 1 is equipped with a refrigeration mechanism 2, a water storage and delivery mechanism 3, and an ice extrusion forming mechanism 4. The ice extrusion forming mechanism 4 includes an inner cylinder 5, with a water inlet 6 at the bottom of the inner cylinder 5. The water inlet 6 is connected to the water storage and delivery mechanism 3 to ensure a stable water supply. A screw-type ice scraper 7 is installed inside the inner cylinder 5. This ice scraper rotates under the drive of a first drive motor 8, converting water into ice. The rotation of the screw-type ice scraper 7 can extrude the ice from the inner cylinder 5 upwards.
[0031] The refrigeration mechanism 2 includes a condenser 9 and an evaporator 10. The evaporator 10 includes an outer cylinder 11 located outside the inner cylinder 5, forming a refrigeration chamber 12 between the inner and outer cylinders 11. Multiple evaporation channels are located within the refrigeration chamber 12 to enhance the refrigeration effect. The lower end of the outer cylinder 11 has a liquid inlet 13, while the upper end has a vapor outlet 14. The vapor outlet 14 is connected to the condenser 9 via a capillary tube 15.
[0032] The refrigeration chamber 12 is equipped with a first evaporation channel 16, a second evaporation channel 17, and a third evaporation channel 18, each with a different shape. The first evaporation channel 16 is meandering, the second evaporation channel 17 is spiral, and the third evaporation channel 18 is also meandering. Through these different shaped evaporation channels, the refrigerant flows more evenly within the chamber, significantly improving refrigeration efficiency. The inner wall of the outer cylinder 11 is equipped with multiple upper baffle rings 19 and lower baffle rings 20, separating the three evaporation channels. The first evaporation channel 16 is located above the upper baffle ring 19, the second evaporation channel 17 is located between the upper baffle ring 19 and the lower baffle ring 20, and the third evaporation channel 18 is located below the lower baffle ring 20. These three evaporation channels are interconnected, forming a highly efficient circulation path.
[0033] On the inner wall of the outer cylinder 11, there are also multiple first upper baffles 21 and first lower baffles 22, which form a first evaporation channel 16. A first lower notch 23 is provided below the first upper baffle 21, and a first upper notch 24 is provided above the first lower baffle 22, forming a meandering path. Similarly, on the inner wall of the outer cylinder 11, there are also multiple third upper baffles 25 and third lower baffles 26, which form a third evaporation channel 18. A third lower notch 27 is provided below the third upper baffle 25, and a third upper notch 28 is provided above the third lower baffle 26, which plays a role in guiding and optimizing the flow of refrigerant.
[0034] In addition, the outer wall of the inner cylinder 5 is provided with threaded plates 29, which together with the outer cylinder 11 form a second evaporation channel 17, further enhancing the cooling effect. The design of the threaded plates 29 not only improves the efficiency of heat exchange, but also makes the cooling process in the refrigeration chamber 12 more uniform.
[0035] An ice storage and discharging mechanism 30 is provided above the ice extrusion forming mechanism 4. The ice storage box 31 is connected to the inner cylinder 5 and has an ice discharging groove 32 and an ice discharging port 33 to facilitate the output of ice blocks. A second drive motor 34 is also provided on one side of the ice storage box 31. The ice blade 35 connected to the motor can crush the ice blocks in the ice discharging groove 32, ensuring that the ice blocks are output from the ice discharging port 33. The upper end of the screw-type ice scraper 7 is connected to a stirring rod 41. The stirring rod 41 is set inside the ice storage box 31, so that the first drive motor 8 can drive the stirring rod 41 to rotate, preventing the ice blocks in the ice storage box 31 from sticking together.
[0036] The base 1 is also equipped with a compressor 36, and the compressor 36 is equipped with a return pipe 37. The return pipe 37 is connected to the steam outlet 14. The compressor 36 is connected to the condenser 9. The compressor 36 is responsible for compressing the steam and connecting it to the steam outlet 14 of the evaporator 10 through the return pipe 37, thereby ensuring that the evaporator 10 can work efficiently.
[0037] The capillary tube 15 is equipped with a filter 40 to prevent impurities from entering the refrigeration system and affecting its performance. The water storage and delivery mechanism 3 provides sufficient water to the inner cylinder 5 through the water tank 38 and the water inlet pipe 39 to ensure that the ice-making process is not interrupted.
[0038] In use, water is first transported from water tank 38 to inner cylinder 5 through inlet pipe 39. Compressor 36 compresses the refrigerant and transports it to evaporator 10 through capillary tube 15. The refrigerant flows meanderingly along third evaporation channel 18, enters second evaporation channel 17 and flows around it, then enters first evaporation channel 16 and flows meanderingly again. After absorbing heat from the water, it quickly evaporates into steam. The refrigerant effectively absorbs heat from the water, thereby lowering the temperature of inner cylinder 5 and rapidly cooling the water to freezing point, forming an ice layer. The steam enters return pipe 37 and returns to compressor 36, re-entering the refrigeration cycle. During ice formation, screw-type ice scraper 7 starts operating, driven by first drive motor 8. The ice scraper rotates along the surface of inner cylinder 5, scraping the formed ice layer into ice storage box 31. Ice storage and discharging mechanism 30 collects the generated ice as the ice layer accumulates, while ice blade 35, driven by second drive motor 34, crushes the ice and outputs it through ice outlet 33 for user convenience.
[0039] The beneficial effects of this utility model are:
[0040] The refrigerant of this invention flows through multiple different paths, allowing for more thorough heat exchange, thereby significantly improving the cooling effect and increasing ice-making efficiency.
[0041] This invention ensures that the refrigerant is evenly distributed throughout the refrigeration chamber, preventing localized insufficient cooling.
[0042] This utility model has a compact and reasonable structural design, occupies a small area, and is suitable for environments with limited space.
[0043] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. An extrusion ice machine with a high-efficiency refrigeration evaporator, comprising a base (1), wherein the base (1) is provided with a refrigeration mechanism (2), a water storage and delivery mechanism (3), and an ice extrusion forming mechanism (4), characterized in that: The ice extrusion forming mechanism (4) includes an inner cylinder (5), with a water inlet (6) at the bottom of the inner cylinder (5), which is connected to the water storage and delivery mechanism (3). A screw-type ice scraper (7) is provided inside the inner cylinder (5), and a first drive motor (8) is provided on the base (1). The first drive motor (8) drives the screw-type ice scraper (7) to rotate and extrude ice. The refrigeration mechanism (2) includes a condenser (9) and an evaporator (10). The evaporator (10) includes an outer cylinder (11) located outside the inner cylinder (5). A refrigeration chamber (12) is formed between the inner cylinder (5) and the outer cylinder (11). A liquid inlet (13) is provided at the lower end of the outer cylinder (11), and a steam outlet (14) is provided at the upper end of the outer cylinder (11). The steam port (14) is connected to the condenser (9) through the capillary tube (15). The liquid inlet (13) and the steam outlet (14) are both connected to the refrigeration chamber (12). The refrigeration chamber (12) is provided with a meandering first evaporation channel (16), a third evaporation channel (18), and a spiral second evaporation channel (17). The inner wall of the outer cylinder (11) is provided with an upper baffle ring (19) and a lower baffle ring (20). The first evaporation channel (16) is located above the upper baffle ring (19). The second evaporation channel (17) is located between the upper baffle ring (19) and the lower baffle ring (20). The third evaporation channel (18) is located below the lower baffle ring (20). The second evaporation channel (17) is connected to the first evaporation channel (16) and the third evaporation channel (18).
2. An extruded ice machine having a high efficiency refrigeration evaporator as defined in claim 1, wherein: The inner wall of the outer cylinder (11) is provided with a plurality of adjacent first upper baffles (21) and first lower baffles (22), and the first evaporation channel (16) is formed between the first upper baffles (21) and the first lower baffles (22). A first lower notch (23) is provided below the first upper baffles (21), and a first upper notch (24) is provided above the first lower baffles (22).
3. An extruded ice machine having a high efficiency refrigeration evaporator as defined in claim 1, wherein: The inner wall of the outer cylinder (11) is provided with a plurality of adjacent third upper baffles (25) and third lower baffles (26), and the third evaporation channel (18) is formed between the third upper baffles (25) and the third lower baffles (26). A third lower notch (27) is provided below the third upper baffles (25), and a third upper notch (28) is provided above the third lower baffles (26).
4. The extruded ice machine having a high-efficiency refrigeration evaporator of claim 1, wherein: The inner cylinder (5) has a threaded plate (29) on its outer wall, and the threaded plate (29) and the outer cylinder (11) form the second evaporation channel (17).
5. An extruded ice machine having a high efficiency refrigeration evaporator as defined in claim 1, wherein: An ice storage and discharging mechanism (30) is provided above the ice extrusion forming mechanism (4). The ice storage and discharging mechanism (30) includes an ice storage box (31) connected to the inner cylinder (5). The ice storage box (31) is provided with an ice discharging groove (32), and the ice discharging groove (32) is provided with an ice outlet (33).
6. An extruded ice machine having a high efficiency refrigeration evaporator as defined in claim 5, wherein: The ice storage box (31) is provided with a second drive motor (34) on one side, and an ice blade (35) is connected to the second drive motor (34). The ice blade (35) is set in the ice outlet groove (32).
7. An extruded ice machine having a high efficiency refrigeration evaporator as defined in claim 1, wherein: The base (1) is also equipped with a compressor (36), the compressor (36) is equipped with a return pipe (37), the return pipe (37) is connected to the steam outlet (14), and the compressor (36) is connected to the condenser (9).
8. An extruded ice machine having a high efficiency refrigeration evaporator as defined in claim 1, wherein: The water storage and delivery mechanism (3) includes a water tank (38) and an inlet pipe (39) connected to the water tank (38), and the inlet pipe (39) is connected to the inlet (6).
9. An extruded ice machine having a high efficiency refrigeration evaporator as defined in claim 1, wherein: The capillary tube (15) is equipped with a filter (40).
10. An extruded ice machine having a high efficiency refrigeration evaporator according to claim 5, wherein: The upper end of the screw-type ice scraper (7) is connected to a stirring rod (41), which is located inside the ice storage box (31).