An S-shaped ice-making evaporator and ice maker
Patent Information
- Application Number
- CN202522635203.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-11
AI Technical Summary
The existing ice-making evaporator has poor cooling at the corners, resulting in local over- or under-cooling, which affects the ice-making effect and efficiency.
The design incorporates an S-shaped evaporator tube with an obtuse angle between the corner and the connecting pipe, ensuring smooth refrigerant flow. The ice-making heads are staggered and spaced out, increasing their quantity and ensuring even distribution.
It improves the uniformity and speed of ice formation, avoids ice sticking caused by the accumulation of cold energy, and improves ice-making efficiency.
Smart Images

Figure CN224933034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ice maker accessories, and in particular to an S-shaped ice evaporator and an ice maker. Background Technology
[0002] Ice makers use an ice-making evaporator for cooling. The individual ice-making heads of the evaporator are typically housed in a water collection box. Refrigerant circulation lowers the temperature of each ice-making head, causing water to freeze upon contact with them. After ice making, a diverting valve directs the hot fluid back to the evaporator, heating the ice and causing it to quickly detach from the ice-making heads. The water collection box is rotatable, allowing the ice to be poured out after ice making. In existing technology, the evaporator is typically designed as a coil, with multiple U-shaped sections connected end-to-end. However, in practical use, refrigerant flow is often obstructed at the corners of the coiled evaporator, leading to localized overcooling and insufficient cooling in other areas, resulting in poor ice-making performance. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of the aforementioned technology by designing an S-shaped ice-making evaporator and ice maker. This design eliminates the problem of localized excess or insufficient cooling during operation of the ice-making evaporator, thereby promoting more uniform and faster ice formation, resulting in better ice-making effect and improved ice-making efficiency.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: an S-shaped ice-making evaporator, comprising:
[0005] An evaporator tube has an inlet pipe for refrigerant to enter and an outlet pipe for refrigerant to flow out at its two ends. The evaporator tube is S-shaped and has several corner sections. The part of the evaporator tube that connects to the two ends of the corner sections is a pair of adjacent connecting pipes. The two adjacent connecting pipes are set at an angle, and the angle between the two adjacent connecting pipes is an obtuse angle.
[0006] Several ice-making heads are provided, each ice-making head being interconnected with each corner, the connection between the evaporator and the inlet pipe, and the connection between the evaporator and the outlet pipe, and the ice-making heads are staggered and spaced apart.
[0007] Preferably, each of the ice-making heads is divided into two groups, in which the ice-making heads of one group are distributed at intervals along a first straight line, and in the other group the ice-making heads are distributed at intervals along a second straight line, wherein the first straight line and the second straight line are parallel to each other and distributed at intervals.
[0008] Preferably, it also includes a heater, which is disposed at the inlet pipe.
[0009] Preferably, the heater is a spring-shaped electric heating coil, and the heater is sleeved on the inlet pipe.
[0010] An ice maker includes a housing, a compressor, a condenser, and an ice-making evaporator disposed within the housing, characterized in that the ice-making evaporator is an S-shaped ice-making evaporator as described above.
[0011] Preferably, the housing is rotatably provided with a water receiving box below the evaporator tube, the compressor and the condenser are located below the water receiving box, each ice-making head extends into the interior of the water receiving box, and the inlet pipe and the outlet pipe pass through or cross the two sides of the water receiving box and extend to the outside of the water receiving box.
[0012] Preferably, the ice-making head located at the junction of the evaporator pipe and the inlet pipe and the ice-making head located at the junction of the evaporator pipe and the outlet pipe are respectively fitted with the inner walls on both sides of the water receiving box.
[0013] Preferably, the top of the housing is provided with a mounting groove, and an ice storage cup is detachably connected to the mounting groove. A cover plate is pivotally connected to the top of the housing, and the cover plate covers the mounting groove to cover the opening of the ice storage cup. An ice pusher plate is movably connected to the side of the water receiving box near the ice storage cup. The ice pusher plate is driven by the water receiving box to push ice into the ice storage cup.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] The evaporator tube is designed in an S-shape, with an obtuse angle between the corner of the evaporator tube and its two adjacent connecting tubes. This reduces the resistance of the refrigerant when it flows through the corner, resulting in smoother and more uniform flow of the refrigerant within the evaporator tube. Each corner corresponds to an ice-making head, which is staggered and spaced apart. This increases the number of ice-making heads and ensures their uniform distribution, preventing localized over- or under-cooling during operation. This promotes more uniform and faster ice formation, resulting in better ice-making effect and improved efficiency. Furthermore, the staggered and spaced arrangement of the ice-making heads also avoids the problem of ice sticking and detachment caused by the accumulation of cold energy. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the ice-making evaporator in Example 1. Figure 1 .
[0017] Figure 2 This is a schematic diagram of the ice-making evaporator in Example 1. Figure 2 .
[0018] Figure 3This is a schematic diagram of the ice maker in Example 2.
[0019] Figure 4 This is a schematic diagram of the ice maker after the cover is opened in Embodiment 2.
[0020] Figure 5 This is a schematic diagram of the ice maker after part of the shell has been removed in Example 2.
[0021] In the diagram: 1. Evaporator pipe; 101. Inlet pipe; 102. Outlet pipe; 103. Corner; 104. Connecting pipe; 2. Ice maker head; 3. First straight line; 4. Second straight line; 5. Heater; 6. Main body; 601. Mounting slot; 602. Cover plate; 7. Compressor; 8. Condenser; 9. Water collection box; 901. Ice push plate; 10. Ice storage cup; 11. Handle; 12. Shovel. Detailed Implementation
[0022] The present invention will be further described below with reference to the embodiments and accompanying drawings.
[0023] Example 1:
[0024] refer to Figure 1 , Figure 2 An S-shaped ice-making evaporator includes an evaporation tube 1, several ice-making heads 2, and a heater 5. The two ends of the evaporation tube 1 are an inlet pipe 101 for refrigerant to enter and an outlet pipe 102 for refrigerant to flow out. The heater 5 is disposed at the inlet pipe 101. Preferably, the heater 5 is a spring-shaped electric heating coil, and the heater 5 is sleeved on the inlet pipe 101.
[0025] The evaporator tube 1 is S-shaped and has several corner sections 103. The two ends of the evaporator tube 1 and the corner sections 103 are connected by two adjacent connecting tubes 104. The two adjacent connecting tubes 104 are arranged at an angle, and the angle between the two adjacent connecting tubes 104 is an obtuse angle.
[0026] Each ice-making head 2 is connected to each corner 103, the connection between the evaporator 1 and the inlet pipe 101, and the connection between the evaporator 1 and the outlet pipe 102. The ice-making heads 2 are staggered and spaced apart. The ice-making heads 2 are divided into two groups. The ice-making heads 2 of one group are spaced apart along the first straight line 3, and the ice-making heads 2 of the other group are spaced apart along the second straight line 4. The first straight line 3 and the second straight line 4 are parallel to each other and spaced apart.
[0027] The evaporator tube 1 is designed in an S-shape. The corner 103 of the evaporator tube 1 and its two adjacent connecting tubes 104 form an obtuse angle. The resistance of the refrigerant when it passes through the corner 103 during the flow process is reduced, so that the refrigerant flows more smoothly and evenly in the evaporator tube 1. Each corner 103 corresponds to an ice-making head 2. The ice-making heads 2 are staggered and spaced apart, which increases the number of ice-making heads 2 and ensures that each ice-making head 2 is evenly distributed. This avoids the problem of local excess or insufficient cold energy when the ice-making evaporator is running, thereby promoting more uniform and faster ice formation, resulting in better ice-making effect and improved ice-making efficiency. In addition, the staggered and spaced arrangement of each ice-making head 2 also avoids the problem of ice sticking and detachment caused by the superposition of cold energy.
[0028] Example 2:
[0029] refer to Figure 3 , Figure 4 , Figure 5 An ice maker includes a housing 6, a compressor 7, a condenser 8, and an ice-making evaporator disposed within the housing 6, wherein the ice-making evaporator adopts the S-shaped ice-making evaporator as described above.
[0030] A water collection box 9 is rotatably mounted on the housing 6 below the evaporator tube 1. The compressor 7 and condenser 8 are located below the water collection box 9. The inlet pipe 101 and outlet pipe 102 pass through or cross the two sides of the water collection box 9 and extend to the outside of the water collection box 9. The design of the S-shaped evaporator tube 1 and each ice-making head 2 makes the overall volume of the ice-making evaporator small and allows for a suitable number of ice-making heads 2. Correspondingly, the volume of the water collection box 9 can be set according to the ice-making evaporator, thereby reducing the volume of the water collection box 9 and further improving the ice-making efficiency.
[0031] The ice-making head 2 located at the junction of the evaporator pipe 1 and the inlet pipe 101 and the ice-making head 2 located at the junction of the evaporator pipe 1 and the outlet pipe 102 respectively are fitted with the inner walls on both sides of the water receiving box 9 to restrict the rotation of the water receiving box 9.
[0032] The water receiving box 9 can be rotated to the ice-making position and the ice-dispensing position. When the opening of the water receiving box 9 faces upward, the water receiving box 9 is in the ice-making position. At this time, each ice-making head 2 extends into the interior of the water receiving box 9 to make ice. After the ice is made, the water receiving box 9 is rotated to the ice-dispensing position where the opening can drop out ice blocks.
[0033] The top of the housing 6 has a mounting groove 601, which is detachably connected to an ice cup 10. A cover plate 602 is pivotally connected to the top of the housing 6, which covers the mounting groove 601 to cover the opening of the ice cup 10. An ice pusher plate 901 is movably connected to the side of the water receiving box 9 near the ice cup 10. When the water receiving box 9 rotates to the ice dispensing position, the ice pusher plate 901 is driven by the water receiving box 9 to push the ice into the ice cup 10. The ice cup 10 has a handle 11 that extends to the outside of the housing 6. The handle 11 has a socket into which a shovel 12 is inserted. After the user opens the flip cover, they hold the handle 11 to take out the ice cup 10 and use the shovel 12 to remove the ice with their other hand.
[0034] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. An S-shaped ice-making evaporator, characterized in that, include: Evaporator (1), the two ends of the evaporator (1) are respectively an inlet pipe (101) for refrigerant to enter and an outlet pipe (102) for refrigerant to flow out. The evaporator (1) is S-shaped and has several corners (103). The part connecting the two ends of the evaporator (1) and the corners (103) is two adjacent connecting pipes (104). The two adjacent connecting pipes (104) are set at an angle, and the angle between the two adjacent connecting pipes (104) is an obtuse angle. Several ice-making heads (2) are connected to each of the corner portions (103), the connection point between the evaporator (1) and the inlet pipe (101), and the connection point between the evaporator (1) and the outlet pipe (102), and the ice-making heads (2) are staggered and spaced apart.
2. An S-shaped ice-making evaporator according to claim 1, characterized in that, Each of the ice-making heads (2) is divided into two groups. The ice-making heads (2) in one group are distributed at intervals along a first straight line (3), and the ice-making heads (2) in the other group are distributed at intervals along a second straight line (4). The first straight line (3) and the second straight line (4) are parallel to each other and distributed at intervals.
3. An S-shaped ice-making evaporator according to claim 1, characterized in that, It also includes a heater (5) which is disposed at the inlet pipe (101).
4. An S-shaped ice-making evaporator according to claim 3, characterized in that, The heater (5) is a spring-shaped electric heating coil, and the heater (5) is sleeved on the inlet pipe (101).
5. An ice maker, comprising a housing (6), a compressor (7), a condenser (8), and an ice-making evaporator disposed within the housing (6), characterized in that, The ice-making evaporator adopts the S-shaped ice-making evaporator as described in any one of claims 1 to 4.
6. An ice maker according to claim 5, characterized in that, The housing (6) of the machine is rotatably provided with a water receiving box (9) below the evaporator (1). The compressor (7) and the condenser (8) are located below the water receiving box (9). Each ice-making head (2) extends into the interior of the water receiving box (9). The inlet pipe (101) and the outlet pipe (102) pass through or cross the two sides of the water receiving box (9) and extend to the outside of the water receiving box (9).
7. An ice maker according to claim 6, characterized in that, The ice-making head (2) located at the junction of the evaporation pipe (1) and the inlet pipe (101) and the ice-making head (2) located at the junction of the evaporation pipe (1) and the outlet pipe (102) respectively fit with the inner wall of the water receiving box (9) on both sides.
8. An ice maker according to claim 6, characterized in that, The top of the housing (6) is provided with an installation groove (601), and an ice storage cup (10) is detachably connected to the installation groove (601). A cover plate (602) is pivotally connected to the top of the housing (6). The cover plate (602) covers the installation groove (601) to cover the opening of the ice storage cup (10). An ice pusher plate (901) is movably connected to the side of the water receiving box (9) near the ice storage cup (10). The ice pusher plate (901) is driven by the water receiving box (9) to push ice into the ice storage cup (10).
