A cold beverage evaporator and a cold beverage device
By integrating the spray section and return section of the evaporator of the cold beverage equipment into a tube, the problems of large space occupation and high leakage risk of the evaporator are solved, and the equipment is miniaturized and its safety is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN DONLIM WEILI ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-19
AI Technical Summary
The split design of the evaporator in existing cold drink equipment results in a large space occupation, making it difficult to miniaturize and increasing the risk of leakage.
An integrated structural design is adopted, which integrates the injection section and the return gas section into a tube. The injection section is partially or entirely located on the side or inside of the return gas section, reducing connection points. The coaxial integrated layout reduces the axial or radial space of the evaporator and reduces the risk of leakage.
It meets the miniaturization requirements of cold beverage equipment, reduces the space occupation and leakage risk of evaporators, simplifies the assembly process, and improves refrigerant flow and oil return efficiency.
Smart Images
Figure CN224381822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold drink equipment technology, and in particular to a cold drink evaporator and cold drink equipment. Background Technology
[0002] In the field of beverage makers such as smoothie makers and shaved ice machines, the evaporator, as a core component of the refrigeration system, directly affects the volumetric efficiency and manufacturing cost of the equipment. In existing household beverage makers such as shaved ice machines and shaved ice machines, the evaporator typically adopts a split refrigeration piping layout: the expansion tube (connecting to the condenser or expansion component) and the return gas tube (connecting to the compressor) are separate components connected to the evaporator cylinder. Specifically, in traditional evaporators, the expansion tube needs to be bent and welded separately to the inlet end of the evaporator cylinder, while the return gas tube needs to be fixed to and welded to the outlet end of the evaporator cylinder. This split design results in the refrigeration piping occupying a large amount of horizontal or vertical space. Especially in small household appliances, the overall volume of the evaporator is difficult to compress, leading to longer or wider devices, severely restricting the miniaturization of the product. On the other hand, the evaporation chamber needs to be welded to the expansion tube and the return gas tube separately, resulting in two welding points, increasing the risk of evaporator leakage. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a cold drink evaporator that can save space, reduce volume, meet the miniaturization needs of household appliances, and reduce the risk of evaporator leakage.
[0004] To solve the above-mentioned technical problems, this utility model provides a cold drink evaporator, including an evaporation cylinder and a return gas pipe and a connecting pipe connected to the evaporation cylinder, wherein the evaporation cylinder is connected to the return gas pipe and the connecting pipe respectively.
[0005] The evaporator cylinder is provided with an evaporation chamber. The connecting pipe is connected to an external condenser or throttling device. The spray section of the connecting pipe is connected to the evaporation chamber. The return pipe is connected to an external compressor. The return section of the return pipe is connected to the evaporation chamber.
[0006] The ejection section is connected to the return section to form a pipe body, and all or part of the ejection section is located on the side of the return section or inside the return section.
[0007] As an improvement to the above solution, one end of the evaporator is provided with a first side cover, which can rotate with the evaporator. One end of the tube passes through the first side cover and is slidably and sealingly connected to the first side cover. One end of the tube is connected to the evaporation chamber.
[0008] As an improvement to the above solution, both the ejection section and the return gas section are inserted into the evaporation chamber, the ejection section is located inside the return gas section, and the return gas section is slidably sealed to the first side cover.
[0009] As an improvement to the above solution, the ejection section includes an ejection connection end and an ejection communication end located in the evaporation chamber, the return gas section includes a return gas connection end and a return gas communication end located in the evaporation chamber, the ejection connection end is fixed to the return gas connection end, and the ejection communication end passes through the return gas section and is connected to the return gas connection end.
[0010] As an improvement to the above solution, the return gas pipe further includes a support section, one end of which is connected to an external compressor, and the other end of which is connected to the side of the return gas connection end. The ejection connection end passes through the return gas section from the end of the return gas connection end.
[0011] As an improvement to the above solution, the end of the return gas connection is provided with a cap, the ejection connection passes through the cap from the return gas section and communicates with the evaporation chamber, and the ejection connection extends from the middle of the evaporation cylinder toward the side wall of the evaporation cylinder.
[0012] As an improvement to the above solution, a return air hole is provided on the side wall of the return air section, and all or part of the return air hole is located inside the evaporation chamber.
[0013] As an improvement to the above solution, the cold drink evaporator further includes an oil return component, which is located on the side of the air return hole. The outlet end of the oil return component is located in the middle of the end of the evaporation cylinder, and the inlet end of the oil return component is located on the peripheral edge of the end of the evaporation cylinder. The oil return component can rotate with the evaporation cylinder.
[0014] As an improvement to the above solution, the outlet end of the oil return component is located in the middle of the first side cover, and the inlet end of the oil return component is located on the peripheral edge of the first side cover. The oil return component can rotate with the first side cover.
[0015] As an improvement to the above solution, an oil collection groove is provided on one side of the oil return component, and a hook-shaped groove is provided at one end of the oil return component located on the peripheral edge of the first side cover. The hook-shaped groove extends outward from the side of the oil return component and communicates with the oil collection groove. When the first side cover rotates, the hook-shaped groove can scoop compressor oil into the oil collection groove.
[0016] As an improvement to the above solution, the position of one end of the oil return component located in the middle of the first side cover can correspond to the position of the air return hole, and the end of the oil collection groove can communicate with the air return hole.
[0017] As an improvement to the above solution, the first side cover is also provided with a side fixing platform. The side fixing platform protrudes from the side of the first side cover and surrounds the periphery of the return air pipe. A clearance groove is provided on one side of the side fixing platform. The position of the clearance groove corresponds to the position of the return air hole. One end of the oil return component located in the middle of the first side cover is provided in the clearance groove or on the side of the clearance groove. The oil collection groove can communicate with the clearance groove.
[0018] As an improvement to the above solution, the cold drink evaporator further includes a mounting assembly, which includes a mounting plate, a bearing, and a connecting shaft. The mounting plate has a first mounting hole, the outer ring of the bearing is fixed in the first mounting hole, one end of the connecting shaft is fixed to the inner ring of the bearing, and the other end of the connecting shaft is connected to the end of the evaporation cylinder opposite to the first side cover. The mounting plate can be fixed to the outer shell of the cold drink equipment.
[0019] This utility model also provides a cold drink device, including the cold drink evaporator as described above.
[0020] Implementing this utility model has the following beneficial effects:
[0021] This utility model of a cold drink evaporator includes an evaporating cylinder, a return gas pipe, and a connecting pipe. The connecting pipe connects to an external condenser or throttling device. The evaporating cylinder contains an evaporation chamber. After the external compressor introduces refrigerant into the external condenser, the refrigerant enters the evaporating cylinder through the connecting pipe for evaporation and refrigeration. During this process, the evaporating cylinder rotates to make ice. The evaporated refrigerant returns to the compressor through the return gas pipe, forming a cycle. The spray section and the return gas section are connected to form a tube body. All or part of the spray section is located on the side or inside the return gas section. Through integrated structural design, the spray section and the return gas section can be integrated into a tube body structure. Compared to the traditional method of placing the inlet and return gas pipes at both ends or on the side of the evaporating cylinder, this saves axial or radial space in the evaporating cylinder, thus saving space, reducing volume, and meeting the miniaturization requirements of household appliances. In addition, since the integrated tube body structure only requires connection between the tube body and the evaporating cylinder, it reduces connection points and lowers the risk of leakage. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the disassembled structure of the cold drink evaporator of this utility model;
[0023] Figure 2 This is a cross-sectional structural schematic diagram of the first embodiment of the cold drink evaporator of this utility model;
[0024] Figure 3 This is a schematic diagram of the rotational movement of the oil scraper of this utility model;
[0025] Figure 4 This is a schematic diagram of the structure of the oil scraper and the air return hole of this utility model.
[0026] Figure 5 yes Figure 4 A magnified view of part A in the image. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0028] See Figure 1 and Figure 2 This utility model discloses a cold drink evaporator, including an evaporating cylinder 1 and a return gas pipe 2 and a connecting pipe 3 connected to the evaporating cylinder 1. The connection structure between the evaporating cylinder 1 and the return gas pipe 2 and connecting pipe 3 is an axial connection structure. The evaporating cylinder 1 is connected to the return gas pipe 2 and the connecting pipe 3 respectively. The evaporating cylinder 1 has an evaporation chamber 11, in which the refrigerant evaporates and absorbs heat for cooling, and the outer wall of the evaporating cylinder 1 is cooled to make ice. The return gas pipe 2 is connected to an external compressor, and is used to return the refrigerant evaporated in the evaporating chamber 11 to the compressor for the next cycle. The return gas section 21 of the return gas pipe 2 is connected to the evaporating cylinder 1 and communicates with the evaporating chamber 11. The connecting pipe 3 is connected to an external condenser or a throttling device. When the connecting pipe 3 is connected to an external condenser, the connecting pipe 3 is preferably a capillary tube, which has a throttling effect. The ejection section 31 of the connecting pipe 3 is connected to the return section 21 and communicates with the evaporation chamber 11, so that the throttled refrigerant or the refrigerant throttled in the connecting pipe 3 can be sent into the evaporation chamber 11 for evaporation.
[0029] The ejector section 31 is connected to the return section 21 to form a pipe body 10. All or part of the ejector section 31 is located on the side or inside the return section 21. By embedding all or part of the ejector section 31 within the side or inside the return section 21, the refrigerant injection channel and the return channel overlap spatially, significantly reducing the axial and radial piping layout space of the evaporator 1, thus meeting the compact structure requirements of household appliances. The integrated design of the pipe body 10 reduces the risk of refrigerant leakage at pipe joints by minimizing the independent connection interfaces between the ejector section 31 and the return section 21, while also simplifying the assembly process of the evaporator and external components.
[0030] The beneficial effects of this utility model embodiment are as follows:
[0031] This utility model embodiment of the cold drink evaporator includes an evaporating cylinder 1, a return gas pipe 2, and a connecting pipe 3. The connecting pipe 3 is connected to an external condenser or throttling device. The evaporating cylinder 1 has an evaporation chamber 11. After the external compressor introduces refrigerant into the external condenser, the refrigerant enters the evaporating cylinder 1 through the connecting pipe 3 for evaporation and refrigeration. During this process, the evaporating cylinder 1 rotates to make ice, and the evaporated refrigerant returns to the compressor through the return gas pipe 2 to form a cycle. The spray section 31 is connected to the return gas section 21 to form a pipe body 10. All or part of the spray section 31 is located on the side of the return gas section 21 or inside the return gas section 21. Through integrated structural design, the spray section 31 and the return gas section 21 can be integrated into the pipe body 10 structure. Compared with the traditional method of setting the inlet pipe and return gas pipe 2 at both ends or the side of the evaporating cylinder 1, it can save axial or radial space of the evaporating cylinder 1, thus saving space, reducing volume, and meeting the miniaturization requirements of household appliances. In addition, since the tube body 10 is integrated into the tube body structure, it is only necessary to connect the tube body 10 to the evaporator 1, which can reduce the number of connection points and reduce the risk of leakage.
[0032] See Figure 2 The evaporator cylinder 1 is provided with a first side cover 12 at one end. The first side cover 12 can rotate with the evaporator cylinder 1. The tube body 10 is slidably sealed to the first side cover 12. One end of the tube body 10 is connected to the evaporation chamber 11. In this way, when the first side cover 12 and the evaporator cylinder 1 rotate relative to the tube body 10, the refrigerant in the evaporator cylinder 1 will not leak from the joint between the tube body 10 and the first side cover 12.
[0033] Specifically, both the ejection section 31 and the return gas section 21 are inserted into the evaporation chamber 11. The ejection section 31 is inserted into the evaporation chamber 11 by being integrated into the return gas section 21. The ejection section 31 is located within the return gas section 21. Specifically, the ejection section 31 is located on the central axis of the return gas section 21. The return gas section 21 is slidably sealed to the first side cover 12 to achieve rotational sealing.
[0034] The ejection section 31 includes an ejection connection end 311 and an ejection communication end 312 located in the evaporation chamber 11. The return gas section 21 includes a return gas connection end 212 and a return gas communication end 213 located in the evaporation chamber 11. The ejection connection end 311 is fixed to the return gas connection end 212. The ejection communication end 312 passes through the return gas section 21 and is connected to the return gas connection end 212. By using an axial nesting structure, the ejector section 31 and the return section 21 are coaxially integrated, thus completely embedding the refrigerant delivery path of the ejector section 31 inside the cavity of the return section 21. This avoids the need for additional external piping and significantly reduces the lateral or radial space occupied by the overall evaporator structure. At the same time, by using the wall of the return section 21 as a mechanical support for the ejector section 31, the refrigerant flow path from the ejector section 31 to the evaporator cavity 11 directly passes through the interior of the return section 21, eliminating the bending space required by traditional split piping arrangements. This achieves a compact axial dimension of the evaporator, further reducing the size of the equipment and meeting the needs of household appliances.
[0035] In addition, due to the coaxial integrated layout, compared with the traditional spiral winding layout, the resistance of the refrigerant flowing in the injection section 31 and the return section 21 can be reduced, and the impact of the fluctuation of the intake pressure and return pressure on the heat exchange efficiency of the evaporator chamber 11 can be balanced.
[0036] Furthermore, the return gas pipe 2 also includes a support section 22. One end of the support section 22 is connected to an external compressor, and the other end is connected to the side of the return gas connection end 212. The support section 22 is inclined or perpendicular to the return gas connection end 212. The support section 22 can connect and fix the return gas connection end 212. At the same time, part of the connecting pipe 3 is spirally wound in the support section 22. The support section 22 can fix the connecting pipe 3. At the same time, the spiral winding method reduces the arrangement space of the connecting pipe 3 and ensures the stability of the connecting pipe 3. The ejection connection end 311 enters the return gas section 21 from the end of the return gas connection end 212, so that the flow path of the refrigerant from the ejection section 31 to the evaporator chamber 11 directly passes through the interior of the return gas section 21. This eliminates the bending space required by the traditional split-type pipeline arrangement, realizes the compactness of the axial dimension of the evaporator, and reduces the friction resistance of the traditional spiral winding pipeline arrangement, improving the refrigerant flow.
[0037] See Figure 4The end of the return gas connection 213 is provided with a cap 23. The ejection connection 312 passes through the cap 23 from the return gas section 21 and communicates with the evaporation chamber 11. The cap 23 seals the axial position of the return gas connection 213, so that the return gas connection 213 can only return gas through the return gas hole 211 on the side wall. The cap 23 not only fixes the ejection connection 312, but also prevents the refrigerant ejected from the ejection connection 312 from directly returning gas through the axial direction of the return gas connection 213, thus avoiding a "short circuit".
[0038] Specifically, the ejector end 312 extends from the middle of the evaporator cylinder 1 toward the side wall of the evaporator cylinder 1. The end of the ejector end 312 forms a "7" shape. The refrigerant is ejected from the ejector end 312 and sprayed toward the side wall of the evaporator cylinder 1 so that the refrigerant can quickly diffuse and evaporate in the evaporator chamber 11. Since the air inlet of the return section 21 is the return air hole 211 located in the side fixed platform 13, the two are far apart. Because it is far away from the return air hole 211, the refrigerant can be fully evaporated in the evaporator chamber 11 and then return through the return air hole 211.
[0039] See Figure 4 and Figure 5 The side wall of the return gas section 21 is provided with a return gas hole 211, which is located entirely or partially inside the evaporation chamber 11 and can provide return gas for the evaporated refrigerant.
[0040] Compressors require a significant amount of lubricating oil to operate. During the refrigeration system's operation, the refrigerant carries the lubricating oil, which migrates to components such as the condenser and evaporator. If this migrated oil cannot be effectively returned to its source, the amount of lubricating oil in the compressor decreases, ultimately leading to wear and reduced lifespan. Furthermore, lubricating oil adhering to the inner walls of the condenser or evaporator increases their thermal resistance, affecting heat transfer. To improve the refrigerant's oil return efficiency within the evaporator cylinder 1, an oil return component 4 is provided. This component 4 is located on the side of the return air hole 211 and is used to collect and return the lubricating oil within the evaporator chamber 11. The inlet end of the oil return component 4 is close to the inner wall of the evaporator cylinder 1, meaning it extends to the vicinity of the cylinder wall. The oil return component 4 can rotate with the evaporator cylinder 1. When the evaporator cylinder 1 rotates, the oil return component 4 rotates accordingly. When the inlet end of the oil return component 4 moves to a low position, it can scrape the bottom inner wall of the evaporator cylinder 1 once, thereby scraping up the lubricating oil film adhering to the bottom of the inner wall to form oil droplets. When the inlet end of the oil return component 4 rotates to a high position, the lubricating oil accumulated at the inlet end of the oil return component 4 flows into the return gas section 21 under the action of gravity through the outlet end of the oil return component 4, and finally returns to the compressor with the refrigerant flow. Through the continuous rotating scraping action of the oil return component 4, the residual oil film on the inner wall of the evaporator chamber 11 can be effectively removed, maintaining the direct heat exchange capacity of the metal surface, and improving the oil return efficiency.
[0041] See Figure 3 In this embodiment of the present invention, when the first side cover 12 rotates synchronously with the evaporator cylinder 1, it can simultaneously drive the inlet end and outlet end of the oil return component 4 to move. The outlet end of the oil return component 4 is located in the middle of the first side cover 12, and the inlet end of the oil return component 4 is located on the peripheral edge of the first side cover 12. The oil return component 4 can rotate with the first side cover 12 and form a continuous oil return cycle by utilizing the periodic action of low-level oil scraping and high-level flow guiding during rotation.
[0042] See Figure 4 and Figure 5The oil return component 4 has an oil collection groove 41 on one side, which can accommodate lubricating oil. The oil collection groove 41 also guides the lubricating oil from the inlet to the outlet of the oil return component 4. For efficient oil scraping, a hook-shaped groove 42 is provided at one end of the oil return component 4 located on the peripheral edge of the first side cover 12. The hook-shaped groove 42 extends outward from the side of the oil return component 4 and forms a "7"-shaped or arc-shaped concave structure at its end. When rotated, the "7"-shaped or arc-shaped concave structure can penetrate deep into the oil layer at the bottom of the evaporator cylinder 1, guiding the accumulated lubricating oil into the oil collection groove 41 through a "scooping" action. Simultaneously, the "7"-shaped or arc-shaped concave structure facilitates the transition of lubricating oil from the hook-shaped groove 42 into the oil collection groove 41. The hook-shaped groove 42 communicates with the oil collection groove 41, and when the first side cover 12 rotates, the hook-shaped groove 42 can scoop compressor oil into the oil collection groove 41.
[0043] When the evaporator 1 drives the oil return component 4 to rotate, when the hook-shaped groove 42 moves to a high position, one end of the oil return component 4 located in the middle of the first side cover 12 can correspond to the position of the air return hole 211. At this time, the oil return component 4 is in an inclined or vertical state, and the end of the oil collection groove 41 can be aligned with the air return hole 211, thereby achieving communication with the air return hole 211.
[0044] The first side cover 12 is also provided with a side fixing platform 13. The side fixing platform 13 protrudes from the side of the first side cover 12 and surrounds the periphery of the return air pipe 2. The side fixing platform 13 is used to fix the oil return component 4 and protect the return air section 21. A clearance groove 131 is provided on one side of the side fixing platform 13. The position of the clearance groove 131 corresponds to the position of the return air hole 211. The groove opening cross-section of the clearance groove 131 is larger than the opening cross-section of the return air hole 211, so that the lubricating oil in the oil collection groove 41 can drip into the return air hole 211 through the clearance groove 131. One end of the oil return component 4 located in the middle of the first side cover 12 is provided in the clearance groove 131 or on the side of the clearance groove 131. When the hook-shaped groove 42 moves to the high position, the oil collection groove 41 can communicate with the clearance groove 131.
[0045] To facilitate installation, the evaporator also includes a mounting assembly 5. This mounting assembly 5, through its integrated design that fixes the evaporator cylinder 1 on one side, significantly simplifies the installation and disassembly process. Specifically, the mounting assembly 5 includes a mounting plate 51, a bearing 52, and a connecting shaft 53. The mounting plate 51 can be fixed to the outer casing of the beverage cooling device. The mounting plate 51 has a first mounting hole 511. The outer ring of the bearing 52 is fixed within the first mounting hole 511. One end of the connecting shaft 53 is fixed to the inner ring of the bearing 52, and the other end of the connecting shaft 53 is connected to the end of the evaporator cylinder 1 opposite to the first side cover 12. During installation, the bearing 52 is first installed in the first mounting hole 511, and then the connecting shaft 53 is connected to the bearing 52. This establishes a connection between the evaporator cylinder 1 and the mounting plate 51, forming an integral structure. This integral structure is then inserted into the outer casing of the beverage cooling device, and the mounting plate 51 is fixed in place to form the connection.
[0046] This utility model embodiment also discloses a cold drink device, including the cold drink evaporator as described above. The cold drink evaporator is provided with an evaporation cylinder 1, a return gas pipe 2, and a connecting pipe 3. The connecting pipe 3 is connected to an external condenser or throttling device. The evaporation cylinder 1 is provided with an evaporation chamber 11. After the external compressor introduces refrigerant into the external condenser, the refrigerant enters the evaporation cylinder 1 through the connecting pipe 3 for evaporation and refrigeration. During this process, the evaporation cylinder 1 rotates to make ice, and the evaporated refrigerant returns to the compressor through the return gas pipe 2 to form a cycle. The ejector section 31 is connected to the return section 21 to form a tube body 10. All or part of the ejector section 31 is located on the side or inside the return section 21. Through integrated structural design, the ejector section 31 and the return section 21 can be integrated into a tube body 10 structure. Compared to the traditional method of placing the inlet pipe and return pipe 2 at both ends or sides of the evaporator cylinder 1, this saves axial or radial space in the evaporator cylinder 1, thus saving space, reducing volume, and meeting the miniaturization requirements of household appliances. Furthermore, since the tube body 10 structure is integrated, it only needs to be connected to the evaporator cylinder 1, reducing connection points and lowering the risk of leakage.
[0047] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A cold beverage evaporator characterized in that, It includes an evaporator cylinder and a return gas pipe and a connecting pipe connected to the evaporator cylinder, wherein the evaporator cylinder is connected to the return gas pipe and the connecting pipe respectively; The evaporator is provided with an evaporation chamber. The connecting pipe is connected to an external condenser or throttling device. The spray section of the connecting pipe is connected to the evaporation chamber. The return pipe is connected to an external compressor. The return section of the return pipe is connected to the evaporation chamber. The ejection section is connected to the return section to form a pipe body, and all or part of the ejection section is located on the side of the return section or inside the return section.
2. The cold beverage evaporator of claim 1, wherein, One end of the evaporator is provided with a first side cover, which can rotate with the evaporator. One end of the tube passes through the first side cover and is slidably and sealingly connected to the first side cover. One end of the tube is connected to the evaporation chamber.
3. The cold beverage evaporator of claim 2, wherein, Both the ejection section and the return section are inserted into the evaporation chamber, with the ejection section located within the return section, and the return section being slidably and sealingly connected to the first side cover.
4. The cold beverage evaporator of claim 1, wherein, The ejection section includes an ejection connection end and an ejection communication end located in the evaporation chamber. The return gas section includes a return gas connection end and a return gas communication end located in the evaporation chamber. The ejection connection end is fixed to the return gas connection end, and the ejection communication end passes through the return gas section and is connected to the return gas connection end.
5. The cold beverage evaporator of claim 4, wherein, The return gas pipe also includes a support section, one end of which is connected to an external compressor, and the other end of which is connected to the side of the return gas connection end. The ejection connection end passes through the return gas section from the end of the return gas connection end.
6. The cold beverage evaporator of claim 4, wherein, The end of the return gas connection is provided with a cap, the ejection connection passes through the cap from the return gas section and communicates with the evaporation chamber, and the ejection connection extends from the middle of the evaporation cylinder toward the side wall of the evaporation cylinder.
7. The cold beverage evaporator of claim 2, wherein, The side wall of the return gas section is provided with return gas holes, and all or part of the return gas holes are located inside the evaporation chamber.
8. The cold beverage evaporator of claim 7, wherein, The cold drink evaporator also includes an oil return component, which is located on the side of the air return hole. The outlet end of the oil return component is located in the middle of the end of the evaporation cylinder, and the inlet end of the oil return component is located on the peripheral edge of the end of the evaporation cylinder. The oil return component can rotate with the evaporation cylinder.
9. The cold beverage evaporator of claim 8, wherein, The outlet end of the oil return component is located in the middle of the first side cover, and the inlet end of the oil return component is located on the peripheral edge of the first side cover. The oil return component can rotate with the first side cover.
10. The cold drink evaporator according to claim 8, characterized in that, The oil return component has an oil collection groove on one side, and a hook-shaped groove is provided at one end of the oil return component located on the peripheral edge of the first side cover. The hook-shaped groove extends outward from the side of the oil return component and communicates with the oil collection groove. When the first side cover rotates, the hook-shaped groove can scoop compressor oil into the oil collection groove.
11. The cold drink evaporator according to claim 10, characterized in that, The position of one end of the oil return component located in the middle of the first side cover can correspond to the position of the air return hole, and the end of the oil collection groove can communicate with the air return hole.
12. The cold beverage evaporator of claim 10, wherein, The first side cover is also provided with a side fixing platform, which protrudes from the side of the first side cover and surrounds the periphery of the return air pipe. A clearance groove is provided on one side of the side fixing platform, and the position of the clearance groove corresponds to the position of the return air hole. One end of the oil return component located in the middle of the first side cover is provided in the clearance groove or on the side of the clearance groove. The oil collection groove can communicate with the clearance groove.
13. The cold beverage evaporator of claim 2, wherein, The cold drink evaporator also includes a mounting assembly, which includes a mounting plate, a bearing, and a connecting shaft. The mounting plate has a first mounting hole, the outer ring of the bearing is fixed in the first mounting hole, one end of the connecting shaft is fixed to the inner ring of the bearing, and the other end of the connecting shaft is connected to the end of the evaporation cylinder opposite to the first side cover. The mounting plate can be fixed to the outer shell of the cold drink equipment.
14. A cold beverage apparatus, characterized by Includes the cold drink evaporator as described in any one of claims 1-13.