A snow melting machine using a quick

Abstract

This application relates to a high-speed snow melting machine, comprising a casing and a refrigeration and power assembly located within the casing, and a processing module disposed within the casing. The processing module includes a stirring chamber forming a refrigeration cavity, an evaporator disposed within the refrigeration cavity, and a stirring paddle. The evaporator includes a cylindrical body, an inlet pipe and a return pipe connected to the cylinder body, and the cylinder body includes a closed-loop inner layer and an outer layer, forming an integrally extended refrigerant flow cavity between the inner and outer layers. The refrigerant flow cavity is connected to the refrigeration assembly through the inlet and return pipes. The stirring paddle is sleeved outside the cylinder body and driven by the power assembly. The evaporator directly forms an integrally extended refrigerant flow cavity from the outer and inner layers. When refrigerant is injected into the refrigerant flow cavity, it can be quickly and evenly dispersed within the cavity, thereby forming a uniform cooling surface on the outer surface of the evaporator's outer layer, increasing the evaporator's cooling area and efficiency, and further improving the snow melting machine's cooling speed.

Description

Technical Field

[0001] This invention relates to the field of snow melting machine technology, and more particularly to a snow melting machine that operates rapidly. Background Technology

[0002] As people's living standards continue to improve and they pursue a more diversified lifestyle, there is a greater demand for more refined and higher-quality ingredients. A slush machine is a device that provides semi-solid, slush-like beverages, offering a drink that falls between liquid and solid ice. Existing slush machines, due to limitations in size and processing capacity, are typically only suitable for commercial use. These machines usually have a base with a storage chamber for the liquid beverage. Inside the storage chamber are an evaporator for cooling the beverage and a stirring paddle. A drive motor within the base rotates the paddle. The beverage in the storage chamber gradually cools to its freezing point under the action of the evaporator, forming an ice-water mixture. The continuous stirring by the paddle then creates a slush-like consistency. However, existing slush machines, limited by their size and cooling efficiency, are not convenient for use in typical household settings.

[0003] The snow melting machine typically contains a refrigeration component connected to the evaporator. Food items located around the evaporator exchange heat with the refrigerant flowing through the evaporator, thus cooling the food. Existing evaporators usually include an outer shell and a spiral inlet pipe located on the inner wall of the outer shell. The spiral inlet pipe fits tightly against the inner wall of the outer shell, and the refrigerant exchanges heat with the food items outside the outer shell as it flows through the spiral inlet pipe. However, the existing evaporator's internal spiral inlet tube structure is complex, and the spiral inlet tube itself has a thick wall. Combined with the outer wall thickness of the evaporator, this significantly reduces the efficiency of heat exchange between the refrigerant and the external food. Furthermore, during the spiral winding process, the thickness of the spiral inlet tube itself results in poor cooling at the connection points between adjacent spiral inlet tubes, leading to slow slurry preparation and low efficiency. Additionally, since the spiral inlet tube extends from front to back, the inlet end of the spiral inlet tube experiences good cooling and a fast cooling speed, while the outlet end experiences poor cooling and a slow cooling speed. This results in uneven cooling of the evaporator as a whole, ultimately affecting the evaporator's cooling speed and efficiency. Summary of the Invention

[0004] In view of the defects and deficiencies of the existing technology, the purpose of this invention is to provide a snow melting machine that uses a fast speed to solve the technical problems of poor pulping efficiency and slow speed caused by the complex structure of the evaporator in the existing products, the difficulty in producing the inlet pipe of the evaporator, and the waste of space and structure of the snow melting machine.

[0005] To address the aforementioned technical problems, this invention provides a fast snow melting machine, comprising a casing and a refrigeration component and a power component located within the casing, and a processing module disposed within the casing. The processing module includes a stirring chamber forming a refrigeration cavity, an evaporator disposed within the refrigeration cavity, and a stirring paddle. The evaporator includes a cylindrical body, an inlet pipe and a return pipe connected to the cylindrical body, and the cylindrical body includes a closed inner layer and an outer layer, forming an integrally extended refrigerant flow cavity between the inner and outer layers. The refrigerant flow cavity communicates with the refrigeration component through the inlet pipe and the return pipe. The stirring paddle is sleeved outside the cylindrical body and driven by the power component.

[0006] According to the present invention, the snow melting machine described in this application has an evaporator installed in the mixing chamber. The evaporator includes a cylinder, an inlet pipe, and a return pipe. Specifically, the cylinder includes a closed-loop inner layer and an outer layer, which directly form an integrally extended refrigerant flow chamber. The condensation flow chamber is connected to the refrigeration assembly through the inlet pipe and the return pipe. Compared to the prior art where the evaporator requires a spiral inlet pipe, the present application directly forms an integrally extended refrigerant flow chamber. After the refrigerant is injected into the refrigerant flow chamber by the refrigeration assembly through the inlet pipe, it can directly diffuse within the refrigerant flow chamber and exchange heat with the food outside the evaporator through the outer layer, before returning through the return pipe. This design offers several advantages. First, after the external refrigerant is injected into the refrigerant flow chamber, it can directly exchange heat with the outer layer and the external food. The refrigerant and food are only sandwiched between the outer layer, eliminating the need for other structural components. This significantly improves the efficiency of heat exchange between the evaporator and the outside environment, thus increasing the evaporator's cooling speed. Second, because the refrigerant flow chamber extends as a single unit—meaning it's sandwiched between the inner and outer layers without clearly defined pipes or boundaries—the refrigerant can flow diffusely within the chamber. The absence of other structural components further enhances the efficiency of heat exchange between the outer layer and the food. The surface can form a seamless cooling surface, avoiding the problem of localized cooling effects found in existing technologies. Furthermore, when the refrigerant is injected into the refrigerant flow chamber, it quickly and evenly disperses within the chamber, rather than flowing from the front to the back. This ensures uniform cooling across the entire outer surface of the evaporator cylinder, improving both cooling efficiency and speed. Moreover, because the refrigerant disperses and cools food outside the outer layer, it avoids the problem in existing technologies where food at the inlet is over-cooled while food at the outlet remains unprocessed. In particular, the increased efficiency of the evaporator speeds up the production of the slush machine and reduces heat exchange between the slush product and the external space, thus reducing throughput losses. This provides users with a fast-processing, low-energy-consumption evaporator and slush machine. Moreover, this application also allows for a reduction in evaporator volume while maintaining normal processing capabilities, providing users with an evaporator and slush machine specifically designed for home use.

[0007] As an optional solution, the cylinder is configured as annular, the rear end of the cylinder is fixedly connected to the stirring chamber, the evaporator also includes a cylinder cover that closes the opening at the front end of the cylinder, the inner layer and the outer layer are both configured as annular cylinders, the front and rear ends of the inner layer and the outer layer are closed and connected, and the interlayer of the inner layer and the outer layer forms the refrigerant flow chamber.

[0008] The inner and outer layers are designed as annular cylinders, facilitating their production and processing. The refrigerant flow cavity is formed between the inner and outer layers by directly sealing their front and rear ends. The cylinder's production is simple and efficient. The rear end of the cylinder is directly fixed to the mixing chamber, strengthening the evaporator's structure. Furthermore, a cap sealing the front opening of the cylinder creates an installation space inside the evaporator, facilitating the installation of other structural components and providing internal protection. The direct sealing of the front and rear ends of the inner and outer layers to form the refrigerant flow cavity results in a simpler and more reliable structural design.

[0009] As an optional solution, the cylinder is configured as annular and has a front port, and the inner layer forms an inner cooling surface opposite to the outer layer, so that the interior of the evaporator forms an inner cooling cavity that communicates with the cooling chamber.

[0010] Different evaporators have different internal structures. The internal structural space of the evaporator increases the volume of space occupied by the evaporator in the mixing chamber. By setting a front port at the front end of the cylinder and forming an inner cooling surface by the inner layer inside, the evaporator forms an inner cooling cavity that communicates with the cooling cavity formed by the mixing chamber itself. In this way, the volume of space occupied by the evaporator in the mixing chamber is only the thickness of the cylinder itself, greatly reducing the space occupied by the evaporator in the mixing chamber and greatly improving the space utilization of the mixing chamber. Furthermore, the outer layer can directly exchange heat with the food in the mixing chamber, while the inner layer can also cool the food in the inner cooling cavity, greatly increasing the cooling area of ​​the evaporator and thus improving the cooling efficiency of the evaporator. At the same time, due to the improved space utilization and cooling efficiency of the evaporator, the slush machine product cools faster and processes more quickly.

[0011] As an optional solution, the agitator includes an outer agitator sleeved outside the outer layer and an inner agitator located in the inner cooling cavity.

[0012] By utilizing the inner layer of the evaporator to form an inner cooling chamber, the space utilization rate of the snow melting machine is increased. Although the stirring paddle sleeved on the outside of the cylinder can be used to mix and stir the food and promote the flow of the food between the cooling chamber and the inner cooling chamber, the food in the inner cooling chamber flows slowly and is easily over-cooled by the inner layer. The stirring paddle further includes an outer stirring paddle located outside the outer layer and an inner stirring paddle located in the inner cooling chamber. In this way, the inner stirring paddle can be used to promote the rapid mixing and flow of the food in the inner cooling chamber with the food in the cooling chamber, so as to make the food in the mixing chamber cool more evenly and make the snow melting machine process faster and more evenly.

[0013] As an optional solution, the inner impeller and the outer impeller are connected by a power connection at the front end.

[0014] The inner and outer stirring blades are directly connected to the front power unit. The power unit only needs to drive the inner or outer stirring blade to drive the outer or inner stirring blade to rotate synchronously, without having to drive the inner and outer stirring blades separately. This improves the transmission efficiency of the power unit and reduces the space occupied by the power unit and transmission system, thereby reducing the size of the snow melting machine itself.

[0015] As an optional solution, the rear end of the cylinder is also provided with a rear port that connects the inner cooling chamber and the cooling chamber.

[0016] Based on the front port, a rear port is further provided at the rear end of the cylinder. Thus, the inner refrigeration chamber can be connected to the refrigeration chamber simultaneously through the front port and the rear port. Food can flow in through the front port and the rear port and flow out through the corresponding port to flow through the inner refrigeration surface formed by the inner layer, thereby achieving the cooling and processing of the food and improving the refrigeration efficiency of the inner layer, thereby increasing the cooling speed of the snow melting machine.

[0017] As an optional solution, the inlet pipe extends from the rear end of the cylinder into the front end of the refrigerant flow chamber.

[0018] For ease of installation and user convenience in handling food, the rear end of the evaporator is typically fixed to the rear wall of the mixing chamber. The inlet pipe and return pipe are correspondingly located at the rear end of the mixing chamber to communicate with the cylinder body. This allows the inlet pipe to extend from the rear end of the cylinder body into the refrigerant flow chamber. However, if both the inlet pipe and return pipe are located at the rear end of the cylinder body, although the refrigerant can quickly disperse within the flow chamber after being injected through the inlet pipe, its proximity to the inlet of the return pipe means that a significant portion of the refrigerant will not undergo sufficient heat exchange before flowing back to the refrigeration components. This reduces the efficiency of heat exchange between the refrigerant and the food, and consequently lowers the evaporator's cooling efficiency. Typically, the inlet pipe is positioned so that the refrigerant can be directly delivered to the front end of the refrigerant circulation chamber via the inlet pipe. This allows the refrigerant to be dispersed more quickly and evenly within the refrigerant circulation chamber. After exchanging heat with the food within the refrigerant circulation chamber, it flows back through the return pipe at the rear end, thereby improving the evaporator's cooling efficiency and the snow melting machine's processing speed.

[0019] As an optional solution, the ratio of the length of the inlet pipe extending into the refrigerant flow cavity to the depth of the refrigerant flow cavity is not less than 1 / 2.

[0020] This configuration allows the inlet pipe to extend into the front end of the refrigerant flow chamber, enabling more refrigerant flowing in through the inlet pipe to be injected into the front end of the evaporator, thus facilitating faster heat exchange with the outer food and improving refrigeration efficiency.

[0021] As an optional solution, the inlet pipe is provided with multiple branch outlets at the front end of the refrigerant flow chamber, and the outlets of the multiple branch outlets have different orientations.

[0022] Multiple branch outlets are provided at the front end of the inlet pipe. Specifically, these branch outlets are oriented differently within the refrigerant flow chamber, allowing the refrigerant flowing in from the inlet pipe to be quickly and evenly distributed within the chamber, thus improving the evaporator's cooling effect. Previously, the refrigerant injected through the inlet pipe was high-pressure, and a single outlet would result in concentrated, localized overcooling. Providing multiple branch outlets reduces the pressure at any single outlet, preventing overcooling. Furthermore, the different orientations of the branch outlets mean the inlet pipe experiences multiple reaction forces in different directions. These forces cancel each other out, preventing the inlet pipe from being subjected to excessive reaction forces that could compromise its reliability.

[0023] As an optional solution, the processing module further includes an NTC module disposed at the rear end of the mixing chamber; or, the mixing chamber includes a chamber body with an upper opening and a chamber cover, the chamber cover covering the opening, the chamber cover having an NTC module extending into the interior of the chamber body; or, the front end of the cylinder has an NTC module extending into the refrigeration chamber.

[0024] Because an internal cooling chamber is further formed inside the cylinder, the space occupied by the evaporator is reduced. However, due to the reduced volume of the evaporator, it will be inconvenient to install components that were directly mounted on the evaporator in the original design. To improve the reliability of the snow melting machine, the NTC module is set at the rear end of the mixing chamber. Compared with the prior art, although the NTC is directly set at the rear end of the mixing chamber, the internal cooling chamber allows the food to flow more evenly within the mixing chamber, thus enabling accurate temperature detection of the food inside the mixing chamber even at the rear end. Depending on the structure of the mixing chamber, the NTC can also be set on the chamber cover. When the chamber cover is closed on the chamber body, the NTC module extends into the interior of the mixing chamber. This design is based on the fact that the evaporator has higher cooling efficiency and faster cooling, and the hollow evaporator also results in more even food flow. Therefore, appropriate NTC modules can be set at different locations according to the structural characteristics of the mixing chamber. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the first embodiment of the snow melting machine described in this invention.

[0026] Figure 2 This is a structural cross-sectional view of the first embodiment of the snow melting machine used in this invention.

[0027] Figure 3 This is an exploded view of the first embodiment of the use of a rapid snow melting machine according to the present invention.

[0028] Figure 4 This is a schematic diagram of the second embodiment of the snow melting machine described in this invention.

[0029] Figure 5 This is an exploded view of the second embodiment of the use of a rapid snow melting machine described in this invention.

[0030] Figure 6 This is a schematic diagram of the third embodiment of the snow melting machine used in this invention.

[0031] Figure 7 This is an exploded view of the third embodiment of the use of a rapid snow melting machine described in this invention.

[0032] The labels in the diagram correspond to the following names:

[0033] 1. Cylinder body; 100. Mounting bracket; 11. Outer layer; 12. Inner layer; 13. Refrigerant flow chamber; 14. Inlet pipe; 15. Return pipe; 16. Mounting cavity; 17. Filler; 18. Mounting hole; 2. Inner refrigeration cavity; 21. Front port; 22. Rear port; 23. NTC module; 3. Cylinder cover; 31. Through hole; 32. Fixing cover; 33. Fixing head; 34. Sealing gasket; 35. Sealing ring; 4. Housing; 401. Motor; 402. Reduction gear. Device; 41. Drive shaft; 42. Bin body; 43. Refrigeration chamber; 44. Bin cover; 45. Discharge port; 46. Head; 5. Inner stirring paddle; 51. Inner shaft; 52. Transmission hole; 53. Drive section; 54. Inner blade; 6. Outer stirring paddle; 61. Transmission section; 62. Front blade; 63. Outer blade; 64. Outer connecting frame; 7. Connecting bracket; 71. Front bracket; 72. Bracket connecting rod; 73. Rear bracket; 74. Circulation outlet; 8. Stirring paddle. Detailed Implementation

[0034] To more clearly illustrate the overall concept of this application, a detailed description is provided below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and not intended to limit the application. Furthermore, it should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to the accompanying drawings and embodiments. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0036] like Figure 1-7As shown, this invention discloses a fast-operating snow melting machine. The snow melting machine includes a housing 4, a refrigeration component, a power component, and a processing module. Preferably, the refrigeration component and the power component are disposed within the housing 4, and the processing module is disposed on the housing 4, functionally connected to the refrigeration component and the power component respectively. The processing module includes a stirring chamber, an evaporator, and a stirring paddle, with the evaporator and the stirring paddle disposed within the stirring chamber. The evaporator includes a cylindrical body, an inlet pipe, and a return pipe. The cylindrical body is cylindrical and includes an outer layer 11 and an inner layer 12, which are closedly connected to form an integrally extending refrigerant flow chamber 13 between the outer layer 11 and the inner layer 12. The refrigerant flow chamber 13 communicates with the refrigeration component through the inlet pipe 14 and the return pipe 15. The refrigerant flow chamber 13 creates a cooling surface on the outer side of the cylindrical body 1 for cooling food placed in the stirring chamber. The stirring paddle is fitted outside the cylinder 1, and the power unit drives the stirring paddle to rotate inside the stirring chamber to drive the food to flow inside the stirring chamber and prevent the food from being overcooled by the evaporator.

[0037] The existing snow melting machine uses an evaporator design where a spiral condensation channel, refrigerant in the shape of a spiral tube, is attached to the inner surface of the cylinder. Refrigerant flows in from the beginning of the spiral condensation channel, passes through it sequentially, and then flows out from the end. Because the refrigerant can only flow sequentially through the spiral condensation channel, the surface at the front end of the channel remains at the initial refrigerant input and is in a lower temperature range, while the surface at the rear end is in a higher temperature range due to heat exchange with the refrigerant. Furthermore, there are structural gaps between adjacent pipes in the spiral condensation channel, preventing direct contact with the refrigerant and resulting in poor refrigeration efficiency or even failure to refrigerate. Ultimately, this leads to poor evaporator refrigeration efficiency and uneven cooling. In this application, a closed refrigerant flow chamber is directly formed between the cylinders of the evaporator. Preferably, no other obstruction structures are typically provided between the outer layer 11 and the inner layer 12, particularly the spiral inlet pipe attached to the inner wall of the outer layer 11 as in the prior art. Thus, the refrigerant flow chamber 13 extends integrally with the cylinder 1, allowing the refrigerant injected through the inlet pipe 61 to quickly disperse within the condensation flow chamber 13, unlike the continuous spiral flow in the spiral inlet pipe in the prior art. On one hand, the external refrigerant diffuses rapidly after being injected into the refrigerant flow chamber, reducing the efficiency reduction caused by refrigerant circulation in the pipes; on the other hand, the hot and cold flow chamber is directly formed between the outer and inner layers, and the surfaces of the outer and inner layers form a complete refrigeration surface without any non-refrigeration structural gaps, resulting in a larger refrigeration area, more uniform refrigeration, and higher refrigeration efficiency. Furthermore, the outer and inner layers of the evaporator described in this application simultaneously form a cooling surface for cooling food. Therefore, products using the evaporator described in this application, such as snow melting machines, can cool food by the outer surface while simultaneously allowing it to flow into the evaporator and exchange heat with the inner layer. This significantly improves the cooling speed and effect of the cylinder 1. When refrigerant is injected into the refrigerant flow chamber 13, the outer surface of the outer layer 11 forms a completely cooled surface. Moreover, due to the absence of the spiral inlet pipe wall structure, the refrigerant is more uniformly distributed on the outer surface of the outer layer 11, eliminating gaps where the refrigerant does not contact the surface. This increases the actual cooling area of ​​the evaporator, further enhancing its cooling efficiency. Consequently, the cooling efficiency of the snow melting machine is significantly improved, leading to faster processing speeds and providing users with fast and efficient snow melting machine products.Furthermore, since the evaporator has an internal cooling chamber for accommodating food ingredients, the space occupied by the evaporator in the mixing chamber is reduced, typically only having the thickness of the evaporator itself. Compared to existing evaporators that have internal assembly space, the space utilization rate of the snow melting machine in this application is improved. With the same mixing chamber volume, the snow melting machine in this application has a larger actual processing capacity, or, with the same nominal capacity, the snow melting machine in this application has a smaller volume.

[0038] Example 1.

[0039] As a first embodiment of the use of a rapid snow melting machine described in this application, such as Figures 1-3 As shown, specifically, the snow melting machine includes a housing 4, a refrigeration component, a power component, and a processing module. Preferably, the housing 4 has an internal installation space, the refrigeration component and the power component are located inside the housing 4, and the processing module is located on the housing 4 to facilitate the user's placement and retrieval of food ingredients placed inside the processing module. Of course, the refrigeration component, power component, and processing module can also be located in different positions depending on the shape of the product. The processing module includes a mixing chamber, an evaporator, and a stirring paddle. Preferably, the mixing chamber includes a chamber body 42 with an opening at the top. A chamber cover 44 is provided at the opening, covering and sealing the chamber body 42. Since the evaporator is located inside the mixing chamber, a refrigeration chamber 43 is formed inside the mixing chamber to cool and process the food ingredients. It should be noted that the mixing chamber can be directly formed by the complete chamber body to constitute the refrigeration chamber, or the chamber body can be located on the housing, with the chamber body and a part of the housing together forming a space to accommodate the food ingredients; or the mixing chamber can be assembled from multiple components and is not a single structural component. The front end of the mixing chamber is also provided with a discharge port 45 and a tap 46, and the tap 46 can open or close the discharge port 45.

[0040] The evaporator includes a cylinder 1, an inlet pipe 14, and a return pipe 15. The cylinder 1 includes an outer layer 11 and an inner layer 12, both of which are annular cylindrical in shape. The front and rear ends of the outer and inner layers 11 and 12 are closed and connected, forming a refrigerant flow chamber 13 between them. The refrigerant flow chamber 13 communicates with the refrigeration assembly through the inlet pipe 14 and the return pipe 15. Preferably, the outer and inner layers 11 and 12 are made of plate-shaped stainless steel, ensuring that no obstruction structures are provided on the inner surfaces of the outer and inner layers 11 and 12 within the refrigerant flow chamber 13. Therefore, the refrigerant flow chamber 13 extends integrally within the cylinder 1. Consequently, when the refrigeration assembly injects refrigerant into the refrigerant flow chamber 13 through the inlet pipe 14, the refrigerant can be quickly and evenly dispersed within the refrigerant flow chamber 13 without obstruction, unlike the directional flow seen in existing technologies. The rear end of the cylinder 1 is also provided with an installation bracket 100 that is fixedly connected to the mixing chamber, so as to fix the evaporator inside the mixing chamber.

[0041] The cylinder 1 has a front port 21, allowing its interior to communicate with the mixing chamber, thus enabling both the outer layer 11 and the inner layer 12 to contact the food. The inner surfaces of both the outer layer 11 and the inner layer 12 are in contact with the refrigerant flow chamber 13, allowing their outer surfaces to simultaneously form cooling surfaces for food processing. The outer layer 11 forms a cooling chamber 43 within the mixing chamber, and the inner layer 12 forms an inner cooling chamber 2 within the evaporator, which communicates with the cooling chamber 43. Food placed in the mixing chamber can either surround the outer layer 11 or be injected into the inner cooling chamber 2, thereby maximizing the space utilization of the evaporator within the mixing chamber by reducing its volume to the thickness between the outer and inner layers 11 and 12.

[0042] To better facilitate the flow of food within the refrigeration chamber 43 and the inner refrigeration chamber 2, the stirring paddle includes an outer stirring paddle 6 located within the refrigeration chamber 43 and an inner stirring paddle 5 located within the inner refrigeration chamber 2. The power assembly includes a drive shaft 41 passing through the chamber body 42 and the rear end of the evaporator. The inner stirring paddle 5 includes an inner shaft 51, a drive hole 52, a drive section 53, and inner blades 54. The drive shaft 52 is located at the rear end of the inner shaft 51 and is poweredly connected to the drive shaft 41. The drive section 53 is located at the front end of the inner shaft 51. The inner blades 54 are located on the outer surface of the inner shaft 51 and extend spirally from the rear end to the front end to propel the food back and forth. The outer stirring paddle 6 includes a drive section 61, a front blade 62, an outer blade 63, and an outer connecting frame 64. Preferably, the outer stirring paddle 6 is poweredly connected to the drive section 53 of the inner stirring paddle 5 via the drive section 61, allowing the inner stirring paddle 5 to drive the outer stirring paddle 6 to rotate synchronously. The front blade 62 is located at the front end of the cylinder 1, and the outer blade 63 is sleeved on the outside of the cylinder 1.

[0043] The rear end of the inlet pipe 14 is fixed to the side wall of the mixing chamber and communicates with the refrigeration component. The inlet pipe 14 is located on the lower side of the cylinder 1 and extends from the rear end of the cylinder 1 into the refrigerant flow chamber 13. The inlet pipe 14 extends from the rear end to the front end of the refrigerant flow chamber 13. The length of the inlet pipe 14 extending into the refrigerant flow chamber 13 is L1, and the axial length of the refrigerant flow chamber 13 is L, where L1 / L ≥ 1 / 2. When external refrigerant is injected into the refrigerant flow chamber 13 through the inlet pipe 14, the refrigerant can reach the front end of the evaporator more directly and quickly to cool and process the food located at the front end of the evaporator.

[0044] Similarly, the rear end of the return pipe 15 is fixed to the side wall of the mixing chamber and communicates with the refrigeration component. The return pipe 15 is located on the upper side of the cylinder, and preferably, the return pipe 15 is connected to the rear end of the refrigerant flow chamber 13 but does not extend into the refrigerant flow chamber 13. Of course, in order to ensure the stable and reliable connection between the return pipe 15 and the cylinder 1, in actual production, a small portion of the return pipe 15 may extend into the refrigerant flow chamber 13. Such a setting is also within the scope of protection of this application. With this setting, the inlet pipe 14 extends into the front end of the refrigerant flow chamber 13 to inject refrigerant into the front end of the refrigerant flow chamber 13. After the refrigerant is quickly and evenly dispersed in the refrigerant flow chamber 13, it exchanges heat with the food outside the cylinder 1 and gradually flows back to the rear end, and finally flows back to the external refrigeration component through the rear return pipe 15. The return pipe 15 located at the rear end ensures that the refrigerant can be more evenly distributed in the refrigerant flow chamber, and also allows the refrigerant after heat exchange to flow back and be recovered more thoroughly through the return pipe, avoiding refrigerant residue in the refrigerant flow chamber and affecting the cooling efficiency.

[0045] Preferably, the inlet pipe 14, extending into the refrigerant flow chamber 13, has multiple branch outlets at its front end, and these branch outlets face different directions within the refrigerant flow chamber 13. That is, the multiple branch outlets are distributed in various directions within the refrigerant flow chamber 13. For example, the front end of the inlet pipe 14 has a four-way pipe, with one port flowing through the inlet of the inlet pipe 14, and the other three ports perpendicularly positioned towards the front end, left side, and right side of the refrigerant flow chamber 13. It should be noted that, since the refrigerant flow chamber 13 is annular, the outlets on the left and right sides are also annular and circumferentially oriented to the left and right, respectively. Preferably, the outlet diameter of the multiple branch outlets is smaller than the inner diameter of the inlet pipe 14, allowing pressurized refrigerant to flow out through different branches. This design ensures that the refrigerant can be dispersed more quickly and evenly into the refrigerant flow chamber 13, thereby enabling the evaporator to cool and process the food located outside the outer layer 11 more quickly, evenly, and efficiently. On the other hand, the refrigerant injected through the inlet pipe 14 is usually under high pressure. If it were to flow out through a single outlet, it would typically be ejected through a single outlet, exerting a large reaction force on the inlet pipe 14 and affecting its structural stability. By setting multiple branch outlets, the outlet pressure of a single branch outlet is reduced, and the opposing forces of the branch outlets cancel each other out, further reducing the impact of refrigerant pressure on the inlet pipe 14.

[0046] To ensure the stable and reliable refrigeration of the snow melting machine, it is necessary to monitor the temperature of the processed food to ensure that cooling stops when the food reaches the desired processing effect, thus preventing over-cooling and affecting the processing results. For more accurate temperature monitoring, preferably, the cylinder 1 is also equipped with an NTC module 23. The NTC module is located at the rear end of the inner refrigeration chamber 2 and fixed to the rear end wall of the cylinder 1. The front end of the NTC 23 extends into the inner refrigeration chamber 2, and the rear end is connected to the control module of the snow melting machine to provide feedback on the temperature of the food in the mixing chamber to the snow melting machine.

[0047] Compared to existing snow melting machines, the snow melting machine described in this application forms an integrally extended refrigerant flow chamber inside the evaporator. This allows the refrigerant injected into the refrigerant flow chamber to be quickly and evenly dispersed within it, thereby enabling rapid and efficient cooling of food. Furthermore, the outer layer of the evaporator forms a refrigeration chamber within the mixing chamber, while the inner layer forms an inner refrigeration chamber communicating with the refrigeration chamber. This allows food located in the mixing chamber to enter the interior of the evaporator, significantly reducing the space occupied by the evaporator within the mixing chamber and greatly improving the space utilization of the mixing chamber. Moreover, even if the refrigeration area of ​​the evaporator is further increased, the volume of the evaporator will not increase excessively, resulting in faster cooling speed and higher cooling efficiency, and also meeting the processing needs of larger-volume snow melting machines. In particular, due to the improved space utilization and refrigeration efficiency of the evaporator, even with a small-volume stirring chamber structure, the evaporator can still accommodate a sufficient refrigeration area to achieve refrigeration processing, ensuring that even a small-volume snow melting machine can meet the requirements of refrigeration processing. This results in a lightweight, compact, and highly efficient snow melting machine product.

[0048] Understandably, the outer stirring blade and the inner stirring blade can be configured as an integral structure, comprising an integrally connected outer stirring blade and an inner stirring blade, wherein the outer stirring blade and the inner stirring blade clamp the cylinder inside, so that the outer stirring blade is in contact with the outer layer, and the inner stirring blade is located in the inner cooling cavity.

[0049] Understandably, the outer and inner stirring paddles are each powered by a power assembly. For example, the inner stirring paddle is driven by a central drive shaft, and the rear end of the mixing chamber also has a power structure to drive the outer stirring paddle. The outer and inner stirring paddles are driven by the power assembly, allowing them to achieve different rotational requirements depending on their state. For instance, during mixing, one of the outer and inner stirring paddles conveys material forward while the other conveys material backward, allowing the material to circulate between the outer and inner layers and the sides, improving the cooling efficiency of the snow melting machine. When the snow melting machine finishes processing and discharges material, the outer and inner stirring paddles can simultaneously push the material from the rear end to the front end to improve the material discharge efficiency.

[0050] Understandably, the NTC module can also be directly installed at the rear end of the mixing chamber; or, it can be installed on the chamber cover of the mixing chamber, so that when the chamber cover closes the opening of the mixing chamber, the NTC module extends into the cooling chamber.

[0051] Understandably, the inner and outer layers can be configured with different shapes depending on their structural features. For example, the inner layer can be adjusted to be elliptical or the inner layer can also be provided with a local groove structure for fixing the inlet pipe.

[0052] Understandably, the outer layer can have different outer surfaces depending on the shape of the product using the evaporator. For example, the cross-section of the outer layer along the axial direction can be set to a conical, elliptical, or multi-segment stepped shape, etc.; and the outer layer can have rounded transitions of various sizes at the shape change positions on the outer surface of the cylinder.

[0053] Understandably, the inner and outer layers are integrally formed and sealed at the open end to form a refrigerant flow cavity inside; or, depending on the different structural configurations, the inner and outer layers can be sealed at the middle near the end.

[0054] Understandably, the inlet pipe may also extend into the refrigerant flow chamber from only the rear end of the cylinder and be located in the rear half of the refrigerant flow chamber.

[0055] Understandably, the inlet pipe located at the end of the refrigerant flow chamber has only a single outlet.

[0056] It is understood that both the inlet pipe and the return pipe are located at the center height of the cylinder, and are respectively located on both sides of the center height of the cylinder.

[0057] Understandably, the inner layer is made directly of a thermally inert conductor and is sandwiched between the inner layer to form the refrigerant flow cavity, thus eliminating the need for insulation filler in the evaporator's mounting cavity.

[0058] Example 2.

[0059] As a second embodiment of the use of a rapid snow melting machine described in this application, such as Figure 4 , 5 As shown, compared to Embodiment 1, the snow melting machine in this embodiment has openings at both the front and rear ends that connect the cooling chamber and the inner cooling chamber. It should be noted that the specific Embodiment 1 and Embodiment 2 described are not intended to be completely independent of each other, but are merely for illustrating two preferred technical solutions. Furthermore, the technical features and solutions of the two embodiments are interchangeable and can be used for mutual reference.

[0060] Specifically, such as Figure 4 , 5 As shown, the snow melting machine includes a casing, a refrigeration component, a power component, and a processing module. Preferably, the refrigeration component and the power component are disposed within the casing, and the processing module is disposed on the casing. The processing module includes a mixing chamber, an evaporator, and a stirring paddle, with the evaporator and stirring paddle disposed within the mixing chamber.

[0061] The evaporator includes a cylindrical body 1 and an inlet pipe 14 and a return pipe 15 connected to the cylindrical body 1. The cylindrical body 1 includes an outer layer 11 and an inner layer 12, with the front and rear ends of the outer layer 11 and the inner layer 12 being closed and connected, forming an integrally extended refrigerant flow chamber 13 inside. The refrigerant flow chamber 13 is connected to the refrigeration assembly through the inlet pipe 14 and the return pipe 15. The refrigerant is injected into the refrigerant flow chamber 13 through the hot and cold pipes 14, and after exchanging heat with the external food through the outer layer 11 and the inner layer 12, it flows back to the refrigeration assembly through the return pipe 15.

[0062] The outer layer 11 of the cylinder 1 forms a cooling chamber 43 inside the mixing chamber, and the inner layer 12 forms an inner cooling chamber 2 inside the cylinder 1. The front end of the cylinder 1 is provided with a front port 21, and the rear end of the cylinder 1 is provided with a rear port 22. The inner cooling chamber 2 communicates with the cooling chamber 43 through the front port 21 and the rear port 22, thereby allowing the food rotating in the mixing chamber to circulate within the cooling chamber 43 and the inner cooling chamber 2 through the front port 21 and the rear port 22. Specifically, the food can flow into the inner cooling chamber 2 through the front port 21 and back into the cooling chamber 43 through the rear port 22; alternatively, it can flow into the inner cooling chamber 2 through the rear port 22 and back into the cooling chamber 43 through the front port 21, depending on the driving method of the stirring paddle.

[0063] The rear end of the cylinder 1 is connected to a connecting bracket 7, and the evaporator is fixedly connected to the stirring chamber through the connecting bracket 7. The connecting bracket 7 includes a front bracket 71, a rear bracket 73, and a bracket connecting rod 72. The front bracket 71 is fixedly connected to the cylinder 1, the rear bracket 73 is fixedly connected to the stirring chamber, and the bracket connecting rod 72 connects the front bracket 71 and the rear bracket 73. There are multiple bracket connecting rods 72, and a circulation outlet 74 is formed between adjacent bracket connecting rods 72. The circulation outlet 74 connects to the rear port 22 and the refrigeration chamber 43.

[0064] The power assembly includes a drive shaft 41 extending into the mixing chamber. The mixing paddle includes an inner mixing paddle 5 located within the inner cooling chamber 2 and an outer mixing paddle 6 located within the cooling chamber. The inner mixing paddle 5 is sleeved outside the drive shaft 41 and is driven by the drive shaft 41. The front end of the outer mixing paddle 6 is drively connected to the inner mixing paddle 5, so that the outer mixing paddle 6 is driven by the inner mixing paddle 6. Preferably, the inner mixing paddle 5 includes an inner shaft 51, a drive section 53, and inner blades 54. The inner shaft 51 is sleeved outside the drive shaft 41, the drive section 53 is located at the front end of the inner shaft 51 and is drively connected to the outer mixing paddle 6, and the inner blades 54 are spiral-shaped and fit against the inner wall of the inner layer 12, driving the food to flow through the inner layer 12 for cooling and processing. The outer stirring paddle 6 includes a transmission section 61, a front blade 62, an outer blade 63, and an outer connecting frame 64. The transmission section 61 is poweredly connected to the drive section 53. The front blade 62 is disposed at the front end of the cylinder 1, and the outer blade 63 is sleeved on the outside of the outer layer 11. Both the front blade 63 and the outer blade 63 are spirally arranged. The outer connecting frame 64 extends axially to connect the outer blade 63, thereby reinforcing and fixing the outer blade 63. Preferably, the spiral arrangement direction of the outer blade 63 and the inner blade 54 is such that the food circulates between the cooling chamber and the inner cooling chamber.

[0065] The evaporator has through holes at both the front and rear ends connecting the inner and outer cooling chambers, and also incorporates an outer and inner stirring paddle. Driven by these paddles, the food continuously circulates within the cooling chambers, allowing it to flow through both the outer and inner layers. This creates cooling surfaces on both the outer and inner layers of the evaporator, significantly increasing the cooling efficiency compared to existing evaporators that only have an outer cooling surface. The integrated refrigerant flow chamber within the cylinder further enhances the uniformity of cooling, preventing the formation of a uniform cooling surface due to mechanical isolation structures. Furthermore, the inner cooling chamber can simultaneously accommodate food, greatly reducing the space occupied by the evaporator and improving the space utilization of the stirring chamber. This design facilitates the production of compact, highly efficient, and efficient snow melting machines.

[0066] Understandably, the evaporator can also be directly mounted on the housing via the bracket and extend into the interior of the chamber body.

[0067] Understandably, the inner and outer agitators are poweredly connected at the rear end of the evaporator.

[0068] Example 3.

[0069] As a third embodiment of the use of a rapid snow melting machine described in this application, such as Figure 6 , 7 As shown, compared to Embodiment 1 and Embodiment 2, the evaporator of the snow melting machine in this embodiment is provided with a cylinder cover at the front end. It should be noted that Embodiment 1, Embodiment 2, and Embodiment 3 described respectively are not intended to be completely independent of each other, but are merely for more specific illustration of three preferred technical solutions, and the technical features and solutions of the three embodiments are interchangeable and can be referenced from each other.

[0070] Specifically, such as Figure 6 , 7 As shown, the snow melting machine includes a casing, a refrigeration component, a power component, and a processing module. Preferably, the refrigeration component and the power component are disposed within the casing, and the processing module is disposed on the casing. The processing module includes a mixing chamber, an evaporator, and a stirring paddle, with the evaporator and stirring paddle disposed within the mixing chamber.

[0071] The evaporator includes a cylindrical body 1 and an inlet pipe 14 and a return pipe 15 connected to the cylindrical body 1. The cylindrical body 1 is annular and includes an outer layer 11 and an inner layer 12, both annular in shape. The front and rear ends of the outer layer 11 and the inner layer 12 are closed and connected, forming an integrally extended refrigerant flow chamber 13 inside. The refrigerant flow chamber 13 is connected to the refrigeration component through the inlet pipe 14 and the return pipe 15. The refrigerant is injected into the refrigerant flow chamber 13 through the hot and cold pipe 14, and after exchanging heat with the external food through the outer layer 11 and the inner layer 12, it flows back to the refrigeration component through the return pipe 15. The evaporator also includes a cylinder cover 3 that closes the front opening of the cylindrical body 1. The cylindrical body 1 and the cylinder cover 3 together form an installation cavity 16 located inside the evaporator. Because the front end of the evaporator is closed, the food in the stirring chamber cannot enter the interior of the evaporator. Compared with Embodiment 1 and Embodiment 2, in this solution, the food cannot directly contact the inner layer 12. However, due to the influence of the external environment, the inner layer 12 also exchanges heat with the external environment, thus affecting the cooling efficiency of the evaporator. Preferably, a filler 17 is provided in the mounting cavity 16, wherein the filler 17 is made of a material that is a poor conductor of heat. In this way, after the filler 17 in contact with the inner layer 12 is cooled to a certain temperature, it will no longer exchange heat with the refrigerant in the refrigerant flow cavity 13 through the inner layer 12, or will only exchange a very small amount of heat. The filler 17 blocks further heat exchange with the outside, thereby avoiding heat loss, improving the cooling efficiency of the evaporator, and also avoiding energy loss. The power assembly is provided with a drive shaft 41 that passes through the filler 17 and extends into the cooling cavity.

[0072] Preferably, the cylinder 1 has a centrally bent section at its front end. Correspondingly, both the outer layer 11 and the inner layer 12 form centrally bent sections at their front ends, so that the refrigerant flow chamber 13 forms a front flow chamber 131 extending towards the center of the cylinder 1 at its front end. Since the outer layer 11 and the inner layer 12 are usually directly processed from stainless steel or other sheet materials and the refrigerant flow chamber 13 is formed by a closed connection, it is easy to implement even with rounded corners. Therefore, the front flow chamber 131 with a cooling surface formed at the front end of the cylinder 1 increases the cooling area of ​​the evaporator, thereby improving the refrigeration efficiency of the evaporator. On the other hand, the front bend of the cylinder can use a large rounded corner transition, which reduces the sharp edges of the outer surface of the evaporator, making the evaporator easier to manufacture. It also reduces the residue of food on the evaporator surface, making it easier for the stirring paddle to push the food to circulate in the stirring chamber.

[0073] A mounting hole 18 is formed at the bend at the front end of the cylinder 1. The cylinder cover 3 is disposed at the mounting hole 18 to close the front opening of the cylinder 1. The cylinder cover 3 has a through hole 31 for the drive shaft 41 to pass through. The evaporator also includes a fixing cover 32, a fixing head 33, a sealing gasket 34, and a sealing ring 35 disposed at the through hole 31. The fixing cover 32, fixing head 33, sealing gasket 34, and sealing ring 35 are all sleeved on the outside of the drive shaft 41. The fixing cover 32 and fixing head 33 are clamped on the inner and outer sides of the cylinder cover 3. Preferably, the fixing cover 32 is exposed inside the refrigeration chamber, and the fixing head 33 is disposed inside the mounting cavity 16 of the cylinder. The sealing gasket 34 is clamped between the fixing cover 32 and the cylinder cover 3, and the sealing ring 35 is disposed between the fixing cover 32 and the drive shaft 41 to achieve a seal on the cylinder 1.

[0074] The power assembly also includes a motor 401 and a reduction gear 402 located inside the housing. The motor 401 drives the transmission shaft 41 through the reduction gear 402. The transmission shaft 41 passes through the evaporator and extends into the refrigeration chamber, and transmits power to the agitator 8, thereby enabling the motor 401 to drive the agitator 8 to rotate.

[0075] The evaporator also includes an NTC module 23 disposed on the cylinder cover 3. The front end of the NTC module 23 extends into the refrigeration chamber, and the rear end of the NTC module 23 is connected to the control module of the snow melting machine via signal connection.

[0076] Because of the integrated refrigerant flow chamber formed inside the evaporator cylinder, the outer surface of the evaporator can provide a larger effective cooling area and a higher cooling efficiency. Therefore, a smaller evaporator and stirring chamber can achieve the cooling processing of food. Furthermore, due to the improved pulping efficiency of the evaporator, it can meet the needs of food cooling processing under the premise of a small-volume stirring chamber and evaporator. Thus, it can provide users with a snow melting machine product that is compact, easy to operate, and highly efficient.

[0077] Understandably, the NTC can also be directly installed at the rear end of the mixing chamber.

[0078] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0079] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if a device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures, but this does not imply that the actual device is inverted. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other orientations, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0080] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special definition and therefore should not be construed as limiting the scope of protection of this application.

[0081] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or equivalent features without departing from the application's concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application will not be listed here.

Claims

1. A high-speed snow melting machine, comprising a housing and a refrigeration assembly and a power assembly located within the housing, and a processing module disposed within the housing, characterized in that: The processing module includes a stirring chamber forming a refrigeration cavity inside, an evaporator and a stirring paddle disposed within the refrigeration cavity. The evaporator includes a cylindrical body, an inlet pipe and a return pipe connected to the cylindrical body. The cylindrical body includes an inner layer and an outer layer that are closed and connected, forming an integrally extended refrigerant flow cavity between the inner layer and the outer layer. The refrigerant flow cavity is connected to the refrigeration component through the inlet pipe and the return pipe. The stirring paddle is sleeved outside the cylindrical body and is driven by the power component.

2. The use of a rapid snow melting machine as described in claim 1, characterized in that: The cylinder is configured as annular, and the rear end of the cylinder is fixedly connected to the stirring chamber. The evaporator also includes a cylinder cover that closes the opening at the front end of the cylinder. The inner and outer layers are both configured as annular cylinders, and the front and rear ends of the inner and outer layers are closed and connected, forming the refrigerant flow chamber through the interlayer of the inner and outer layers.

3. The use of a rapid snow melting machine as described in claim 1, characterized in that: The cylinder is annular and has a front port. The inner layer forms an inner cooling surface opposite to the outer layer, so that the evaporator forms an inner cooling cavity that communicates with the cooling chamber.

4. The use of a rapid snow melting machine as described in claim 3, characterized in that: The agitator includes an outer agitator sleeved outside the outer layer and an inner agitator located in the inner cooling cavity.

5. The use of a rapid snow melting machine as described in claim 4, characterized in that: The inner and outer agitators are connected at the front end.

6. The use of a rapid snow melting machine as described in claim 3, characterized in that: The rear end of the cylinder is also provided with a rear port that connects the inner cooling chamber and the cooling chamber.

7. The use of a rapid snow melting machine as described in claim 1, characterized in that: The inlet pipe extends from the rear end of the cylinder into the front end of the refrigerant flow chamber.

8. The use of a rapid snow melting machine as described in claim 7, characterized in that: The length of the inlet pipe extending into the refrigerant flow cavity is not less than 1 / 2 of the depth of the refrigerant flow cavity.

9. The use of a rapid snow melting machine as described in claim 1, characterized in that: The inlet pipe is located at the front end of the refrigerant flow chamber and has multiple branch outlets, with the outlets of the multiple branch outlets facing different directions.

10. The use of a rapid snow melting machine as described in claim 1, characterized in that: The processing module also includes an NTC module located at the rear end of the mixing chamber; Alternatively, the mixing chamber includes a chamber body with an upper opening and a chamber cover, the chamber cover covering the opening, the chamber cover having an NTC module extending into the interior of the chamber body; Alternatively, the front end of the cylinder may be provided with an NTC module that extends into the cooling chamber.

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