Snow melting machine convenient to use

Abstract

The snow melting machine convenient to use comprises a machine shell, a refrigeration assembly, a power assembly and a processing module, the processing module comprises a stirring barrel, an evaporator and a stirring paddle, the evaporator and the stirring paddle are arranged in the stirring barrel, and the evaporator comprises a barrel body with an opening in the front end, a spiral condensation channel, a condensation inlet and a condensation outlet, the barrel comprises an inner barrel and an outer barrel sleeved outside the inner barrel, the front ends of the inner barrel and the outer barrel are in closed connection to form an inner space for accommodating the spiral condensation channel, the spiral condensation channel is simultaneously attached to the inner barrel and the outer barrel, a condensation cavity located in the stirring barrel is formed outside the outer barrel, and an inner condensation cavity communicated with the condensation cavity is formed inside the inner barrel. The outer cylinder and the inner cylinder of the evaporator form a cooling surface simultaneously, so that the refrigeration efficiency of the evaporator is improved; an inner condensation cavity is further formed in the inner barrel, the space occupied by the evaporator is reduced through the inner condensation cavity, and the space volume utilization rate of the snow melting machine is increased.

Description

Technical Field

[0001] This invention relates to the field of snow melting machine technology, and in particular to a snow melting machine that is easy to use. Background Technology

[0002] As people's living standards continue to improve, there is a growing demand for more refined and higher-quality ingredients. A slush machine is a device that can produce molten smoothies, providing users with a beverage that is somewhere between liquid and solid ice. Due to limitations in size and processing capacity, existing slush machines are generally only suitable for commercial use. These machines typically 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 inside the base rotates the stirring 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 creates a smooth, slushy consistency. However, people now increasingly desire the ability to easily make slushies at home.

[0003] Existing snow melting machines use an evaporator to exchange heat and cool food. To improve the cooling efficiency, the cooling area of ​​the evaporator needs to be increased. However, increasing the evaporator's volume requires increasing the cooling area, which takes up space within the mixing drum, reducing the machine's volume utilization. Furthermore, since the evaporator needs to contact the food for cooling, reducing the size of each module would decrease the contact area, lowering cooling efficiency. In some cases, the heat exchange and ambient temperature could even prevent the machine from effectively processing the food. Therefore, existing snow melting machines cannot truly achieve a compact size, ease of use and storage, and are unsuitable for home use. Summary of the Invention

[0004] In view of the defects and shortcomings of the existing technology, the purpose of this invention is to provide a convenient snow melting machine that solves the technical problems of insufficient evaporator cooling area, low volume utilization of the stirring drum, excessive size of the snow melting machine, poor cooling efficiency, and inconvenience caused by the simple function of the snow melting machine.

[0005] To solve the above-mentioned technical problems, the present invention provides a convenient snow melting machine, including a housing and a refrigeration component and a power component located within the housing, and a processing module disposed on the upper part of the housing. The processing module includes a stirring drum, an evaporator disposed within the stirring drum, and a stirring paddle. The evaporator includes a cylinder with a front opening, a spiral condensation channel, a condensation inlet and a condensation outlet communicating with the spiral condensation channel. The cylinder includes an inner cylinder and an outer cylinder sleeved outside the inner cylinder. The inner cylinder and the outer cylinder are closed and connected at the front end to form an internal space accommodating the spiral condensation channel. The spiral condensation channel is in contact with both the inner cylinder and the outer cylinder. A condensation cavity located within the stirring drum is formed outside the outer cylinder, and an inner condensation cavity communicating with the condensation cavity is formed inside the inner cylinder.

[0006] According to the technical solution described in this application, the snow melting machine includes an evaporator disposed within the stirring drum. Compared to the prior art where the evaporator presents a contradiction between cooling area and volume (i.e., it cannot achieve a small volume while having a large cooling area), the evaporator in this application includes an inner cylinder and an outer cylinder fitted outside the inner cylinder. The front ends of the outer cylinder and the inner cylinder are closed and connected to form an internal space. A spiral condensation channel is provided within the internal space, and the spiral condensation channel is in close contact with both the outer cylinder and the inner cylinder. Simultaneously, the front end of the inner cylinder has an opening, and an inner condensation chamber is formed inside the inner cylinder. Thus, the outer wall of the outer cylinder and the inner wall of the inner cylinder simultaneously form cooling areas that come into contact with the food. Compared to the prior art snow melting machines that only form a cooling surface on the outer surface of the evaporator, the solution in this application not only retains the cooling area formed on the outer surface of the cylinder but also further increases the inner surface of the inner cylinder as a cooling area. Therefore, both the outer surface of the outer cylinder and the inner surface of the inner cylinder of the evaporator can cool and process the food, greatly improving the refrigeration efficiency of the snow melting machine. Meanwhile, since both sides of the spiral condenser pipe can exchange heat with the food simultaneously, heat loss on the other side during unilateral heat exchange is avoided, further increasing the cooling efficiency of the snow melter. Furthermore, because an inner condensation chamber is formed inside the evaporator, the food located in the stirring drum can enter the inner condensation chamber for cooling processing, significantly reducing the volume occupied by the evaporator itself. Typically, it is only the thickness of the outer and inner cylinders. Even if the area of ​​the outer and inner cylinders is further increased, thereby increasing the cooling area of ​​the snow melter, the volume occupied by the evaporator will not increase excessively, thus greatly improving the space utilization of the snow melter. Moreover, by increasing the cooling area of ​​the evaporator without increasing its volume, the snow melter can be designed to be more compact and lightweight, making it easier for users to store and better suited for home use.

[0007] As an optional solution, the agitator includes an inner agitator located within the inner condensation chamber and an outer agitator sleeved outside the outer cylinder.

[0008] Simultaneously, an inner stirring paddle is installed within the inner condensing chamber, and an outer stirring paddle is fitted around the outer cylinder. This allows for simultaneous stirring of the ingredients within the stirring cylinder. The inner stirring paddle also tumbles and pushes the ingredients within the inner condensing chamber, mixing them with those within the overall condensing chamber. This results in more uniform processing by the snow melting machine and prevents localized overcooling. Furthermore, the embedded inner stirring paddle and the directly fitted outer stirring paddle ensure close contact with the inner and outer cylinders, pushing away ingredients that are too close to the inner or outer cylinders. This prevents prolonged contact with the outer or inner cylinders, which could lead to overcooling and freezing, thus affecting the normal operation of the snow melting machine.

[0009] As an optional solution, the inner stirring paddle is provided with a drive section at its front end, and the outer stirring paddle is connected to the inner stirring paddle through the drive section, and the inner stirring paddle drives the outer stirring paddle to rotate.

[0010] A drive section is directly installed at the front end of the inner stirring paddle, and the drive section is powered by the outer stirring paddle. On one hand, a single power source can be used to simultaneously drive both the inner and outer stirring paddles, avoiding the increased cost and structural complexity caused by separately installing drive units for the inner and outer stirring paddles. On the other hand, the inner stirring paddle directly drives the outer stirring paddle, achieving synchronous rotation between them, which facilitates uniform mixing of the ingredients in the condensation chamber and the inner condensation chamber. Furthermore, a mixing and stirring device can be installed at the power connection point between the outer and inner stirring paddles to further enhance the mixing of the ingredients in the condensation chamber and the inner condensation chamber.

[0011] As an optional solution, the front end of the external stirring paddle is also provided with a front stirring blade, which is located axially at the front end of the evaporator.

[0012] Although the evaporator's inner cylinder forms an inner condensation chamber, improving the space utilization of the snow melting machine, the food placed in the stirring drum is mainly concentrated in the condensation chamber, requiring more tumbling and mixing from the outer stirring blade. A front stirring blade is further provided at the front end of the outer stirring blade. On one hand, the front stirring blade occupies more stirring space within the stirring drum, avoiding dead zones in the mixing, resulting in more uniform mixing and preventing food in dead zones from being unable to be mixed and thus unable to be condensed and processed. On the other hand, the front stirring blade is located at the connection between the inner and outer stirring blades, enabling more thorough mixing of the food propelled by the inner and outer stirring blades, achieving more complete mixing within the inner and condensation chambers, and improving the processing effect of the snow melting machine.

[0013] As an optional solution, the rear end of the inner stirring paddle is provided with a drive shaft connected to the power assembly, and the center of the rear end wall of the inner cylinder is provided with a through hole for the drive shaft to pass through.

[0014] Because the outer cylinder is fitted over the inner cylinder, the evaporator is typically configured as an annular cylindrical shape. The inner stirring blade rotates within the inner condensation chamber of the cylinder. A through-hole is directly provided at the center of the rear end wall of the inner cylinder for the drive shaft of the inner stirring blade to extend into, facilitating the driving of the inner stirring blade. Furthermore, it allows for the direct installation of a sealing structure at the through-hole to prevent food from leaking out of the stirring cylinder; it also enables the inner stirring blade to drive the outer stirring blade.

[0015] As an optional solution, the evaporator further includes a shaft seal disposed at the through hole, the shaft seal being sleeved outside the drive shaft.

[0016] Adding a shaft seal can further enhance the sealing performance between the drive shaft and the mixing drum, preventing food from leaking out of the mixing drum through the connection between the drive shaft and the through hole, thus ensuring the safe and reliable operation of the snow melting machine.

[0017] As an optional solution, a spiral condenser tube is provided between the inner cylinder and the outer cylinder, and the spiral condenser tube is respectively attached to the outer cylinder and the inner cylinder, forming the spiral condensation channel.

[0018] A spiral condenser tube is directly installed between the outer cylinder and the inner cylinder, and the spiral condenser tube is directly attached to the outer cylinder and the inner cylinder. On the one hand, the refrigerant in the spiral condenser tube can exchange heat with the external food more directly, improving the refrigeration efficiency. On the other hand, the direct attachment of the outer cylinder, spiral condenser tube and inner cylinder further reduces the volume occupied by the evaporator itself in the stirring drum, so that the space utilization rate of the snow melting machine can be better improved.

[0019] As an optional solution, the length of the outer cylinder is greater than the length of the inner cylinder, so that an internal cavity is formed between the rear end walls of the outer cylinder and the inner cylinder, and the condensation inlet and the condensation outlet are disposed inside the internal cavity.

[0020] While the evaporator can utilize an internal condensation chamber to reduce its space footprint and improve the space utilization of the snow melting machine, both the snow melting machine and the evaporator still require external connection structures. For example, the spiral condensation channel needs condensation inlet and outlet connections to the refrigeration components. Therefore, the outer cylinder is designed to be longer than the inner cylinder. Since the outer and inner cylinders are closed at the front end, the outer cylinder forms an internal space at the rear end of the inner cylinder. This internal space can be used to install the condensation inlet and outlet, as well as the connection structure between the condensation inlet and outlet and the refrigeration components. It can also accommodate the drive connection structure for the internal stirring paddle and the control module of the evaporator. This maximizes the space utilization of the evaporator without increasing its overall volume.

[0021] As an optional embodiment, the evaporator further includes a condenser inlet pipe sandwiched between the inner and outer cylinders, the condenser inlet pipe extending into the front end of the inner space to communicate with the spiral condenser channel.

[0022] A condenser inlet pipe is further provided between the outer cylinder and the inner cylinder. The condenser inlet pipe is used to directly send the refrigerant to the front end of the spiral condenser channel, so that the refrigerant input by the refrigeration component can fully contact the food at the front end of the evaporator and gradually flow to the rear end of the evaporator. Finally, it flows back to the refrigeration component from the condenser outlet at the end, so as to achieve more efficient refrigeration of the evaporator.

[0023] As an optional solution, the outer wall of the inner cylinder is provided with a spiral groove, the inner cylinder is fitted with the inner wall of the outer cylinder, and the spiral groove forms the spiral condensation channel; or, the inner wall of the outer cylinder is provided with a spiral groove, the outer wall of the inner cylinder is fitted with the outer cylinder, and the spiral groove forms the spiral condensation channel; or, the inner wall of the outer cylinder is provided with an inner spiral groove, the outer wall of the inner cylinder is provided with an outer spiral groove, the inner spiral groove and the outer spiral groove are arranged opposite to each other and surround each other to form the spiral condensation channel.

[0024] By directly setting spiral grooves on the outer or inner cylinder to form a spiral condensation channel for the evaporator, both the outer and inner cylinders can achieve more direct and sufficient heat transfer of the refrigerant and food within the spiral condensation channel. Furthermore, by directly setting spiral grooves on the outer or inner cylinder to form the spiral condensation channel, a separate spiral condenser tube is eliminated, reducing the number of components, lowering the cost of the snow melting machine, and further compressing the space occupied by the evaporator to improve the space utilization of the snow melting machine. Attached Figure Description

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

[0026] Figure 2 This is a cross-sectional view of the processing module structure of the first embodiment of the convenient snow melting machine described in this invention.

[0027] Figure 3 This is an exploded view of the processing module of the first embodiment of the convenient snow melting machine described in this invention.

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

[0029] Figure 5 This is a cross-sectional view of the processing module structure of the second embodiment of the convenient snow melting machine described in this invention.

[0030] Figure 6 This is an exploded view of the processing module of the second embodiment of the convenient snow melting machine described in this invention.

[0031] Figure 7 This is a schematic diagram of the evaporator structure of the third embodiment of the convenient snow melting machine described in this invention.

[0032] 1. Casing; 11. Power Unit; 2. Agitator; 21. Cylinder Cover; 22. Condensation Chamber; 23. Handle; 24. Discharge Port; 3. Evaporator; 31. Outer Cylinder; 32. Inner Cylinder; 33. Spiral Condenser Tube; 34. Rear End Wall; 341. Through Hole; 342. Shaft Seal; 35. Internal Space; 36. Condensation Inlet; 37. Condensation Outlet; 38. Cylinder Support; 39. Condensation Inlet Pipe; 4. External Agitator; 41. Front Agitator 42. Stirring blade; 43. Transmission section; 44. Outer stirring blade; 45. Support plate; 46. End plate; 57. Inner stirring paddle; 58. Inner stirring shaft; 59. Inner stirring blade; 50. Drive section; 51. Transmission shaft; 62. Inner condensation chamber; 63. Front connecting port; 64. Rear connecting port; 75. Fixed support; 76. Support base; 77. Support connecting rod; 78. Fixing ring; 79. Fixing groove; 70. Stirring channel; 71. Support sealing ring. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] like Figure 1-7 As shown, this invention discloses a convenient snow melting machine. The snow melting machine includes a housing 1 and a refrigeration component (not shown), a power component 11, and a processing module located within the housing. The processing module is disposed on the upper part of the housing 1 and includes a stirring cylinder 2, an evaporator 3, and a stirring paddle. The stirring paddle includes an outer stirring paddle 4 and an inner stirring paddle 5. The evaporator 3, the outer stirring paddle 4, and the inner stirring paddle 5 are all disposed within the stirring cylinder 2, and a condensation chamber 22 is formed inside the stirring cylinder 2. The evaporator 3 includes a cylinder with a front opening, a spiral condensation channel, a condensation inlet 36 communicating with the spiral condensation channel, and a condensation outlet 37. The cylinder body includes an outer cylinder 31 and an inner cylinder 32. The outer cylinder 31 is sleeved outside the inner cylinder 32, and the front ends of the outer cylinder 31 and the inner cylinder 32 are closed and connected to form an internal space 35 between the outer cylinder 31 and the inner cylinder 32. The spiral condensation channel is located in the internal space 35 and is in contact with the inner side wall of the outer cylinder 31 and the outer side wall of the inner cylinder 32. This results in the outer surfaces of both the outer cylinder 31 and the inner cylinder 32 having cooling surfaces that come into contact with the food, and an inner condensation cavity 6 that communicates with the condensation cavity 22 is formed inside the inner cylinder 32. Compared to existing technologies where only the outer surface of the evaporator forms a cooling surface, this invention utilizes both the outer and inner cylinders of the evaporator to form cooling surfaces, increasing the cooling area and improving the cooling efficiency of the snow melting machine without increasing its volume. Simultaneously, the cylinder forms an inner condensation chamber within the inner cylinder, allowing food from the stirring drum to flow into this chamber. This significantly reduces the volume occupied by the evaporator within the stirring drum, improving its space utilization. Thus, a smaller stirring drum can process a rated volume of food, enabling a compact and lightweight snow melting machine that is easy to operate and store, making it particularly suitable for home use. Furthermore, even in existing commercial or semi-commercial environments, the increased cooling area and improved space utilization of the evaporator significantly enhance the cooling efficiency of the snow melting machine, allowing for faster production of snow-melted products.

[0036] Example 1.

[0037] As a first embodiment of the convenient snow melting machine described in this invention, such as Figure 1-4 As shown in the figure. Specifically, the snow melting machine includes a housing 1 (only a portion of the housing 1 is shown in the accompanying drawings, and the housing is not limited to the shape shown in the drawings), a refrigeration component (not shown) located inside the housing 1, and a power component 11. The main function of the housing 1 is to provide support for various functional modules or components, and its shape varies depending on the overall design of the snow melting machine; the refrigeration component provides a condenser to the snow melting machine to cool and process the food placed in the stirring drum; the power component 11 provides power to the snow melting machine, and only a simplified schematic diagram of the power component is shown in the accompanying drawings.

[0038] The snow melting machine also includes a processing module disposed on the upper part of the casing 1. The processing module includes a stirring drum 2, an evaporator 3, and a stirring paddle. The evaporator 3 and the stirring paddle are disposed inside the stirring drum 2, forming a condensation chamber 22 inside the stirring drum 2. The evaporator 3 and the stirring paddle process the food within the condensation chamber 22. Preferably, the stirring drum 2 has an opening at the top for placing food, and a drum cover 21 is provided at the opening. The front end of the stirring drum 2 is also provided with a handle 23 and a discharge port 24. The discharge port 24 is connected to the condensation chamber 22. By operating the handle 23, the discharge port 24 is opened to discharge the processed food from the stirring drum 2.

[0039] like Figure 2-4As shown, the evaporator 3 includes a cylindrical body, a spiral condensation channel, a condensation inlet 36 and a condensation outlet 37 connecting the spiral condensation channel, and a cylindrical body support 38. The cylindrical body includes an outer cylinder 31 and an inner cylinder 32, which are arranged in a concentric ring and are closed at their front ends to form an internal space 35 within the outer cylinder 31 and inner cylinder 32. A spiral condenser tube 33 is provided within the internal space 35 of the evaporator 3, forming the spiral condensation channel. The spiral condenser tube 33 is simultaneously in contact with the inner wall of the outer cylinder 31 and the outer wall of the inner cylinder 32, so that the surfaces of the outer cylinder 31 and the inner cylinder 32 located inside the stirring drum 2 simultaneously form cooling surfaces. Preferably, the outer cylinder 31 is longer in the axial direction than the inner cylinder 32. Since the outer cylinder 31 and the inner cylinder 32 are aligned at their front ends, the outer cylinder 31 forms part of the internal space 35 behind the rear end wall 34 of the inner cylinder 32. The condensation inlet 36 and the condensation outlet 37 are located within the internal space 35 formed behind the outer cylinder 31. A cylinder support 38 is also provided at the rear end of the evaporator 3, and the evaporator 3 is fixedly connected to the stirring tank 2 via the cylinder support 38. For example, the cylinder support 38 is provided with screw holes and is directly fixed to the side wall of the stirring tank 2 with screws.

[0040] The front end of the cylinder has an opening, and an inner condensing chamber 6, which communicates with the condensing chamber 22, is formed inside the inner cylinder 32. The opening forms a front connecting port 61 connecting the inner condensing chamber 6 and the condensing chamber 22. Food placed in the stirring drum 2 can flow into the inner condensing chamber 6 through the front connecting port 61, be cooled and processed by the inner cylinder 32, and then flow back into the condensing chamber 22 through the front connecting port 61, thus achieving the cooling and processing of the food. Because the cooling area of ​​the inner cylinder 32 is further increased based on the outer cylinder 31, the cooling efficiency of the snow melting machine is higher, enabling faster processing of the food into a snow-melted state. Furthermore, the food can flow into the interior of the cylinder, so the cylinder does not occupy excessive internal space of the stirring drum 2. Even if the length of the cylinder is further increased to further increase the cooling area of ​​the outer cylinder 31 and the inner cylinder 32, the actual effective volume of the stirring drum 2 will not be affected, making the snow melting machine compact, lightweight, and convenient for user operation and storage.

[0041] To better achieve the tumbling and mixing of ingredients within the mixing drum 2, the mixing paddle includes an outer mixing paddle 4 and an inner mixing paddle 5. The outer mixing paddle 4 is fitted onto the outside of the outer drum 31, and the inner mixing paddle 5 is inserted into the inner drum 32 and located within the inner condensing chamber 6. The front end of the inner mixing paddle 5 is provided with a drive section 53, and the front end of the outer mixing paddle 4 is provided with a front stirring blade 41 and a transmission section 42. The outer mixing paddle 4 is poweredly connected to the drive section 53 via the transmission section 42, enabling the outer mixing paddle 4 and the inner mixing paddle 5 to rotate synchronously. Preferably, the inner mixing paddle 5 includes an inner stirring shaft 51, an inner stirring blade 52, and a transmission shaft 54. The inner stirring blade 52 is spiral-shaped and located outside the inner stirring shaft 51. The transmission shaft 54 ​​extends rearward from the rear end of the inner stirring shaft 51 and is poweredly connected to the power assembly 11, so that the rotation of the inner mixing paddle 5 and the outer mixing paddle 4 is achieved under the drive of the power assembly 11. The inner cylinder 32 has a through hole 341 at the center of its rear end wall 34 for the drive shaft 54 ​​to pass through, and a shaft seal 342 fitted onto the drive shaft 54 ​​at the through hole 341. Directly creating a through hole at the rear end of the inner cylinder to realize the power assembly results in a simple structure and stable, reliable drive; further, the shaft seal prevents food from leaking out through the through hole, ensuring safer and more reliable operation of the snow melting machine.

[0042] like Figure 2 , 3 As shown, the outer stirring paddle 4 includes a front stirring blade 41, a transmission section 42, an outer stirring blade 43, a support plate 44, and an end plate 45. The front stirring blade 41 is located at the front end of the outer stirring paddle 4 and, when the outer stirring paddle 4 is fitted onto the outside of the cylinder, is positioned at the front of the cylinder. This allows for mixing and stirring of the food ingredients located at the front of the cylinder, resulting in more uniform mixing. The end plate 45 is located at the rear end of the outer stirring paddle 4 and, when the outer stirring paddle 4 is fitted onto the outside of the cylinder, is close to the rear end of the cylinder, allowing for mixing and stirring of the food ingredients located at the rear end of the cylinder. The outer stirring blade 43 is spiral-shaped and connected to the end plate 45 and the front stirring blade 41 respectively. The support plate 44 is configured as an axially extending strip and extends from the rear end to the front end of the outer stirring blade 4. The support plate 44 is also connected to the end plate 45 and the front stirring blade 41. Furthermore, the support plate 44 is connected to the spirally arranged outer stirring blade 43 at the middle part. The support plate 44 can provide structural support for the outer stirring blade 43 and ensure the structural stability of the outer stirring blade 43.

[0043] Preferably, the outer stirring blade 43 is close to the outer side wall of the outer cylinder 31, and the inner stirring blade 52 is close to the inner side wall of the inner cylinder 32. In this way, when the inner stirring blade 5 and the outer stirring blade 4 are working, the food on the surface of the cylinder can be more thoroughly peeled off, and the food is prevented from being overcooled when it remains on the surface of the cylinder for a long time.

[0044] When the snow melting machine of this invention is in operation, the user places the food into the stirring drum 2 through the upper opening of the stirring drum 2. At this time, the food flows into the condensing chamber 22 and the inner condensing chamber 6. After the snow melting machine is started, the outer and inner drums of the cylinder simultaneously form cooling surfaces, and the food located in the condensing chamber 22 and the inner condensing chamber 6 is simultaneously cooled and processed, thereby improving the cooling speed and cooling efficiency of the snow melting machine. The outer and inner stirring paddles are then used to tumble and mix the food, achieving uniform cooling and processing. Since the inner and outer surfaces of the evaporator can be cooled and processed simultaneously, the cooling efficiency of the evaporator is greatly improved. Therefore, the snow melting machine can completely cool and process the food in a shorter time, or the snow melting machine can reduce its own volume without increasing the cooling time. In particular, since the evaporator has an inner condensing chamber, the food can enter the interior of the evaporator and be cooled. Compared with the prior art, the volume occupied by the evaporator itself is greatly reduced, and the capacity of the snow melting machine to process food in a single batch is greatly increased.

[0045] Because the evaporator can increase the cooling area without excessively increasing the volume, even if the size of the snow melting machine is reduced, the evaporator can still provide sufficient cooling area to ensure that the food can fully exchange heat and that the snow melting machine can complete the cooling process without being affected by the external environment. Therefore, the solution of this application is also particularly suitable for lightweight and small-sized snow melting machines, thus providing users with a snow melting machine product suitable for home use, which is convenient for operation and storage in a home environment. Of course, the solution of this invention is also applicable to the existing commercial or semi-commercial use environments, and due to the improved refrigeration efficiency, it can also reduce the user's energy consumption.

[0046] As an optional solution, the evaporator cylinder can form the spiral condensation channel through its own structure. For example, the outer wall of the inner cylinder is provided with a spiral groove, and the inner cylinder fits against the outer wall of the outer cylinder, thereby forming a spiral condensation channel between the spiral groove and the inner wall of the outer cylinder; or, the inner wall of the outer cylinder is provided with a spiral groove, and the spiral groove fits against the outer wall of the inner cylinder to close the upper opening of the spiral groove, thereby forming the spiral condensation channel between the spiral groove and the outer wall of the inner cylinder; or, the inner wall of the outer cylinder forms an inner spiral groove, and the outer wall of the inner cylinder forms an outer spiral groove. When the outer cylinder is fitted over the inner cylinder, the inner spiral groove and the outer spiral groove are arranged opposite each other and form a closed channel, with the spiral condensation channel formed by the outer spiral groove and the inner spiral groove together.

[0047] As an optional solution, the stirring paddle can be configured as an integral structure. For example, the outer stirring paddle and the inner stirring paddle described in Embodiment 1 can be configured as a fixed integral part and inserted into the cylinder, so that the outer stirring paddle is sleeved on the outside of the outer cylinder and the inner stirring paddle extends into the inner cylinder.

[0048] As an optional solution, the outer stirring paddle is fitted onto the outside of the cylinder. The snow melting machine includes a power transmission structure that directly drives the outer stirring paddle. The rotation of the outer stirring paddle simultaneously drives the inner stirring paddle, thus eliminating the need for a through hole for transmission at the rear end of the cylinder. For example, the inner wall of the stirring cylinder is provided with a drive gear connected to the power assembly, and the outer circumference of the rear end of the outer stirring paddle is provided with transmission teeth. The drive gear meshes with the transmission teeth and drives the outer stirring paddle to rotate. Speed ​​reduction transmission can also be achieved by adjusting the number of teeth on the drive gear and transmission teeth.

[0049] As an optional solution, the outer and inner agitators are each equipped with a drive module, thereby allowing the outer and inner agitators to rotate synchronously, or to have different rotational speeds; or, to have different directions of rotation. Different transmission methods can be selected based on the arrangement of the agitator blades of the outer and inner agitators.

[0050] As an optional solution, the spiral condensation channel can be configured with two layers. For example, the spiral condenser tube includes an inner and outer double-layer tube, wherein the outer spiral condenser tube is fitted with the inner side wall of the outer cylinder, and the inner spiral condenser tube is fitted with the outer side wall of the inner cylinder, so as to further improve the cooling effect of the outer and inner cylinders and further improve the working efficiency of the snow melting machine.

[0051] As an optional solution, the evaporator located at the through hole may not require a shaft seal. For example, the evaporator may directly install a bearing and transmission structure at the through hole, with the transmission structure and the cylinder being rotatably fixedly connected. One end of the transmission structure located in the internal space may be directly connected to the power assembly, and the other end of the transmission structure located in the inner condensation chamber may be detachably connected to the inner stirring paddle.

[0052] Example 2.

[0053] As a convenient snow melting machine described in this invention, such as Figure 5 , 6 As shown. Specifically, the processing module is further disposed in a fixed bracket inside the stirring drum, and the evaporator is mounted on the stirring drum via the fixed bracket. It should be noted that the first and second embodiments of the snow melting machine described respectively are not intended to be completely independent of each other, but are merely for illustrating several preferred technical solutions of the snow melting machine, and the technical features and solutions of the several embodiments are common and can be used for mutual reference.

[0054] like Figure 5 , 6 As shown, the processing module includes a stirring drum 2, an evaporator 3, a stirring paddle, and a fixed support 7, wherein the stirring paddle includes an outer stirring paddle 4 and an inner stirring paddle 5. The evaporator 3, the outer stirring paddle 4, the inner stirring paddle 5, and the fixed support 7 are all disposed inside the stirring drum 2, and a condensation chamber 22 is formed inside the stirring drum 2.

[0055] The evaporator 3 includes a cylindrical body, a spiral condensation channel, a condensation inlet 36 and a condensation outlet 37 communicating with the spiral condensation channel. The cylindrical body includes an outer cylinder 31 and an inner cylinder 32, which are concentric and cylindrical annular. The outer cylinder 31 is fitted over the inner cylinder 32, and the front and rear ends of the outer cylinder 31 and the inner cylinder 32 are closed and connected, forming an internal space. The evaporator 3 has a spiral condenser tube 33 within this internal space, and the spiral condensation channel is formed inside the spiral condenser tube 33. The spiral condenser tube 33 is sandwiched between the outer cylinder 31 and the inner cylinder 32 and is in close contact with both, so that the outer surfaces of the outer cylinder 31 and the inner cylinder 32 form cooling surfaces. When food comes into contact with the surface of the outer cylinder 31 or the inner cylinder 32 located in the stirring drum, it can exchange heat with the condenser inside the spiral condenser tube 33, thereby achieving cooling processing. Thus, an inner condensing chamber 6 is formed inside the inner cylinder 32, which communicates with the condensing chamber 22. The food in the inner condensing chamber 6 and the food in the condensing chamber 22 circulate, mix and stir with each other.

[0056] The outer cylinder 31 and the inner cylinder 32 are both closed and connected at their front and rear ends, so that the cylinder body has a communication port at both the front and rear ends that connects the inner condensing chamber 6 and the condensing chamber 22. The front end of the cylinder body has a front communication port 61, and the rear end of the cylinder body has a rear communication port 62. The condensing inlet 36 and the condensing outlet 37 penetrate the cylinder body to communicate with the spiral condenser tube 33. Preferably, the condensing inlet 36 and the condensing outlet 37 are located at the connection of the rear ends of the outer cylinder 31 and the inner cylinder 32, and penetrate the connecting wall of the outer cylinder 31 and the inner cylinder 32.

[0057] The evaporator 3 is fixed to the side wall of the stirring drum 2 by the fixing bracket 7. The fixing bracket 7 includes a fixing seat 71, a bracket connecting rod 72, and a fixing ring 73. The fixing seat 71 is fixedly connected to the side wall of the stirring drum 2. Preferably, the fixing seat 71 is directly fixed to the side wall of the stirring drum 2 by screws. The bracket connecting rod 72 connects the fixing seat 71 and the fixing ring 73. Preferably, the bracket connecting rod 72 is a plurality of columnar rods extending axially, and the plurality of bracket connecting rods 72 are arranged circumferentially, forming a stirring channel 75 between adjacent bracket connecting rods 72. The front end face of the fixing ring 73 is provided with a fixing groove 74. The evaporator 3 is installed in the fixing groove 74. Preferably, a sealing element 76 is also provided in the fixing groove 74 to elastically limit the evaporator 3. The sealing element 76 ensures the reliable installation of the evaporator 3 and also avoids the friction and noise caused by the hard contact and collision between the evaporator 3 and the fixing ring 73. The fixed ring 73 has a channel at its center that communicates with the rear connecting port 62, so that the food discharged from the inner condensing chamber 6 flows through the fixed ring 73 and then flows back into the condensing chamber 22 through the stirring channel 75 between the support rods 72.

[0058] An outer stirring paddle 4 is fitted around the outer cylinder 21, and an inner stirring paddle 5 is installed inside the inner cylinder 22. The inner stirring paddle 5 and the outer stirring paddle 4 are poweredly connected, so that the outer stirring paddle 4 and the inner stirring paddle 5 can rotate synchronously.

[0059] In this embodiment, when the snow melting machine is working, the user pours the food into the mixing drum 2 through the opening above the mixing drum 2. At this time, the food flows into the condensing chamber 22 and the inner condensing chamber 6. After the snow melting machine is started, the outer and inner drums of the cylinder simultaneously form cooling surfaces. The food in the condensing chamber 22 and the inner condensing chamber 6 is simultaneously cooled and processed. Then, the outer and inner stirring blades are used to tumble and mix the food, achieving uniform cooling and processing. The front and rear ends of the cylinder have openings. The spiral inner stirring blades of the inner stirring blade can push the food from the front connecting port into the inner condensing chamber. After being cooled and processed in the inner condensing chamber, it flows out of the inner condensing chamber from the rear connecting port, passes through the stirring channel, and flows back into the condensing chamber, where it is more thoroughly mixed and stirred with the food in the condensing chamber, making the cooling and processing of the snow melting machine more uniform.

[0060] As an optional solution, the rear end of the evaporator has a support that is connected to the inner circumference of the cylinder, so that the support supports the cylinder and prevents the cylinder from being squeezed and deformed.

[0061] As an optional solution, the evaporator has a rear end wall with a through hole for food to pass through. At the same time, the drive shaft of the inner stirring paddle passes through the through hole of the rear end wall and is powered by the power assembly.

[0062] As an optional solution, since the front and rear ends of the cylinder are provided with openings, an inner stirring paddle is not required, but only an outer stirring paddle is provided. The outer stirring paddle pushes the food into the front connecting port, and after passing through the inner condensation chamber, it is discharged from the rear connecting port.

[0063] Example 3.

[0064] As a third embodiment of the convenient snow melting machine described in this invention, such as Figure 7 As shown, compared to Embodiment 2, the evaporator in this embodiment further includes a condenser inlet pipe, which extends into the internal space of the cylinder and communicates with the spiral condensation channel at the front end of the cylinder. It should be noted that Embodiments 1, 2, and 3 of the snow melting machine described are not intended to be completely independent of each other, but are merely for illustrating several preferred technical solutions of the snow melting machine. Furthermore, the technical features and solutions of the several embodiments are common and can be used for mutual reference.

[0065] like Figure 7As shown, the evaporator 3 includes a cylindrical body, a spiral condensation channel, a condensation inlet 36 communicating with the spiral condensation channel, and a condensation outlet 37. The cylindrical body includes an outer cylinder 31 and an inner cylinder 32, which are concentric and cylindrical annular. The outer cylinder 31 is fitted over the inner cylinder 32, and the front ends of the outer cylinder 31 and the inner cylinder 32 are closed and connected to form an internal space 35 inside the outer cylinder 31 and the inner cylinder 32. The evaporator 3 has a spiral condenser tube 33 located within the internal space 35, which forms the spiral condensation channel. The spiral condenser tube 33 is in close contact with both the outer cylinder 31 and the inner cylinder 32.

[0066] Preferably, the evaporator 3 further includes a condenser inlet pipe 39, which extends into the internal space 35 and is clamped between the outer cylinder 31 and the inner cylinder 32 to reach the closed front end of the outer cylinder 31 and the inner cylinder 32. The condenser inlet 36 is connected to the spiral condenser tube 33 through the condenser inlet pipe 39. Thus, the refrigerant of the refrigeration components of the snow melting machine can be directly transferred to the front end of the spiral condenser tube 33 through the condenser inlet pipe 39. In this way, the refrigerant can flow directly to the front end of the cylinder, exchange heat with the food at the front end, and gradually flow towards the rear end, continuously exchanging heat with the food during the flow. This further improves the refrigeration efficiency of the evaporator.

[0067] Preferably, the spiral condenser tube 4, located between the outer and inner cylinders and overlapping with the condenser inlet tube 29, can be flattened or have a groove provided, allowing the condenser inlet tube to extend from the rear end to the front end. This ensures that the outer wall of the outer cylinder and the inner wall of the inner cylinder, which come into contact with the food and perform the condensation function, maintain smooth surfaces of rotation. This guarantees stable operation of the outer and inner stirring paddles and also prevents food residue from remaining in dead zones.

[0068] Understandably, the outer cylinder or the inner cylinder has a groove on its side wall, and the condenser inlet pipe is disposed in the groove of the outer cylinder or the inner cylinder and extends from the rear end of the cylinder to the front end.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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 user-friendly snow melting machine, comprising a housing, a refrigeration component and a power component located within the housing, and a processing module disposed on the upper part of the housing, characterized in that: The processing module includes a stirring drum, an evaporator disposed within the stirring drum, and a stirring paddle. The evaporator includes a cylinder with a front opening, a spiral condensation channel, a condensation inlet and a condensation outlet communicating with the spiral condensation channel. The cylinder includes an inner cylinder and an outer cylinder sleeved outside the inner cylinder. The inner cylinder and the outer cylinder are closed and connected at the front end to form an internal space accommodating the spiral condensation channel. The spiral condensation channel is in contact with both the inner cylinder and the outer cylinder. A condensation cavity located inside the stirring drum is formed outside the outer cylinder, and an inner condensation cavity communicating with the condensation cavity is formed inside the inner cylinder.

2. The easy-to-use snow melting machine as described in claim 1, characterized in that: The agitator includes an inner agitator located within the inner condensation chamber and an outer agitator sleeved outside the outer cylinder.

3. The easy-to-use snow melting machine as described in claim 2, characterized in that: The inner stirring paddle has a drive section at its front end, and the outer stirring paddle is connected to the inner stirring paddle through the drive section, and the inner stirring paddle drives the outer stirring paddle to rotate.

4. The easy-to-use snow melting machine as described in claim 3, characterized in that: The front end of the external stirring paddle is also provided with a front stirring blade, which is located axially at the front end of the evaporator.

5. The easy-to-use snow melting machine as described in claim 2, characterized in that: The rear end of the inner stirring paddle is provided with a drive shaft connected to the power assembly, and the center of the rear end wall of the inner cylinder is provided with a through hole for the drive shaft to pass through.

6. The easy-to-use snow melting machine as described in claim 5, characterized in that: The evaporator also includes a shaft seal disposed at the through hole, the shaft seal being sleeved outside the drive shaft.

7. The easy-to-use snow melting machine as described in claim 1, characterized in that: A spiral condenser tube is provided between the inner cylinder and the outer cylinder. The spiral condenser tube is in contact with the outer cylinder and the inner cylinder respectively, and the spiral condenser tube forms the spiral condensation channel.

8. The easy-to-use snow melting machine as described in claim 1, characterized in that: The outer cylinder is longer than the inner cylinder, so that an internal cavity is formed between the rear end walls of the outer cylinder and the inner cylinder, and the condensation inlet and the condensation outlet are located inside the internal cavity.

9. The easy-to-use snow melting machine as described in claim 1, characterized in that: The evaporator also includes a condenser inlet pipe sandwiched between the inner and outer cylinders, the condenser inlet pipe extending into the front end of the inner space to communicate with the spiral condenser channel.

10. The easy-to-use snow melting machine as described in claim 1, characterized in that: The outer side wall of the inner cylinder is provided with a spiral groove, and the inner cylinder fits into the inner side wall of the outer cylinder, forming the spiral condensation channel; Alternatively, the inner wall of the outer cylinder is provided with a spiral groove, and the outer wall of the inner cylinder is fitted with the outer cylinder, the spiral groove forming the spiral condensation channel; Alternatively, the inner wall of the outer cylinder is provided with an inner spiral groove, and the outer wall of the inner cylinder is provided with an outer spiral groove. The inner spiral groove and the outer spiral groove are arranged opposite to each other and enclose each other to form the spiral condensation channel.

Images