An ice cream machine
Patent Information
- Application Number
- CN202522600706.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-08
AI Technical Summary
The existing production process for cold bucket components of ice cream machines is complex, costly, and has inconsistent insulation performance. Traditional foam insulation processes are inefficient and pose environmental and quality challenges.
A pre-formed foam insulation layer is placed between the winding pipe and the evaporation cylinder, simplifying the production process and replacing the traditional on-site foaming and filling.
It simplifies the production process, reduces costs and time requirements, improves the consistency of refrigeration efficiency and insulation performance, and enhances product quality.
Smart Images

Figure CN224924538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food production, specifically to an ice cream machine. Background Technology
[0002] An ice cream machine is a common piece of equipment that uses a refrigeration system to freeze and churn ingredients to create smooth-textured ice cream. One of its core components is the refrigeration tank assembly, which typically includes an inner tank for holding the ingredients and an evaporator that surrounds the inner tank and forms a cavity with the inner tank wall. Within this cavity, the refrigerant exchanges heat directly with the inner tank through the evaporator, thereby achieving rapid cooling and freezing.
[0003] To maintain refrigeration efficiency, prevent external heat intrusion, and avoid condensation on the outer wall of the refrigeration tank, effective insulation of the evaporator cavity is crucial. Currently, the most commonly used insulation process in the industry is foam insulation. Specifically, polyurethane or other foaming materials are injected into the cavity between the evaporator and the outer shell of the refrigeration tank, allowing them to foam and solidify within the cavity to form a fixed insulation layer.
[0004] However, this traditional foam insulation process has several significant drawbacks: The production process is complex and inefficient: the foaming process requires precise control of raw material ratios, temperature, pressure, and injection volume, placing stringent demands on production equipment and process parameters. The entire process includes multiple stages such as mold preparation, material injection, curing, shaping, and cleaning, resulting in a long production cycle and severely limiting the production efficiency of refrigeration cylinder components.
[0005] Higher costs: The complex process leads to higher labor costs, equipment maintenance costs, and time costs. Meanwhile, waste of foaming raw materials and the generation of defective products further increase production costs.
[0006] Environmental and Consistency Challenges: Foamed materials may involve volatile organic compounds, posing certain environmental challenges. Furthermore, improper control of the foaming process can easily lead to problems such as incomplete filling, uneven density, or overflow, affecting the consistency and reliability of the product's thermal insulation performance.
[0007] Therefore, there is an urgent need in this field for a new insulation solution for the cold bucket components of ice cream machines that can simplify the production process, improve production efficiency and reduce costs. Utility Model Content
[0008] The purpose of this invention is to provide an ice cream machine that uses foam insulation to simplify the production process and improve production efficiency.
[0009] To achieve the above objectives, the technical solution of this utility model is as follows: An ice cream machine includes a shell assembly, a support assembly, a refrigeration system, and a refrigeration drum assembly. The refrigeration drum assembly includes an inner liner, a winding tube, a foam insulation layer, and an evaporation cylinder. The inner liner is disposed inside the evaporation cylinder, the winding tube is disposed outside the inner liner, and the foam insulation layer is disposed between the winding tube and the evaporation cylinder.
[0010] Preferably, the outer casing assembly includes a top cover, a bottom plate, a left side plate, a right side plate, a front cover, and a rear cover. The bottom of the left side plate is connected to the bottom plate, and both sides of the left side plate are connected to the front cover and the rear cover, respectively. The top of the left side plate is connected to the top cover. The bottom of the right side plate is connected to the bottom plate, and both sides of the right side plate are connected to the front cover and the rear cover, respectively. The top of the right side plate is connected to the top cover. The bottom of the rear cover is connected to the bottom plate, and the top of the rear cover is connected to the top cover. The bottom of the front cover is connected to the bottom plate.
[0011] Preferably, the support assembly includes a front support, a rear support, and a support plate. The front support and the rear support are respectively disposed at the front end and the rear end of the base plate, and the bottom of the support plate is connected to the front support and the rear support.
[0012] Preferably, the refrigeration system includes a compressor, a condenser assembly, and a fan assembly. The compressor is mounted on the chassis, the fan assembly is disposed within the rear support, and the condenser assembly is disposed between the rear cover and the fan assembly.
[0013] Preferably, the top cover is provided with a feeding port, and the feeding port is provided with an inlet seat.
[0014] Preferably, the inlet seat is provided with an inlet cover.
[0015] The ice cream machine of this utility model has the following advantages compared with the prior art: By using a pre-formed foam insulation layer, which is directly inserted between the spiral wound tube and the evaporator cylinder, the traditional complex and time-consuming on-site foaming and filling process is completely replaced. This greatly simplifies the assembly process of the refrigeration cylinder components, shortens the production cycle, and improves production efficiency.
[0016] Cost reduction: Simplifying the process means reducing investment in production equipment, lowering energy consumption and labor costs. At the same time, it avoids waste of foaming materials and the generation of defective products, thus significantly reducing manufacturing costs.
[0017] Improved product quality and consistency: The pre-fabricated foam insulation layer has uniform density and stable geometric dimensions, which can ensure the consistency and reliability of insulation performance. It avoids quality problems such as incomplete filling and uneven density that may occur in traditional foaming processes, ultimately improving the cooling efficiency and product quality of ice cream machines. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of an ice cream machine provided in an embodiment of the present invention; Figure 2 An explosion diagram of an ice cream machine provided in an embodiment of this utility model; Figure 3 An exploded view of the ice bucket assembly provided in this embodiment of the utility model. Detailed Implementation
[0019] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: 1. Refrigeration tank assembly; 2. Inner liner; 3. Spiral wound tube; 4. Foam insulation layer; 5. Evaporator cylinder; 6. Top cover; 7. Bottom plate; 8. Left side plate; 9. Right side plate; 10. Front cover; 11. Rear cover; 12. Front support; 13. Rear support; 14. Support plate; 15. Compressor; 16. Condenser assembly; 17. Fan assembly; 18. Feed port; 19. Inlet seat; 20. Inlet cover.
[0020] As attached Figure 1-3 As shown in the illustration, this embodiment demonstrates an ice cream machine. The main structure of the ice cream machine is enclosed by a shell assembly, which mainly includes a top cover 6, a bottom plate 7, a left side plate 8, a right side plate 9, a front cover 10, and a rear cover 11. Specifically, the bottoms of the left side plate 8 and the right side plate 9 are firmly connected to the bottom plate 7, and their tops together support the top cover 6. On the front and back of the device, the front cover 10 and the rear cover 11 are respectively connected to the sides of the left side plate 8 and the right side plate 9, thus forming a complete and stable box structure together with the top cover 6 and the bottom plate 7. In addition, the top and bottom of the rear cover 11 are connected to the top cover 6 and the bottom plate 7 respectively, and the bottom of the front cover 10 is also connected to the bottom plate 7. This multi-point connection method ensures the rigidity and stability of the overall frame.
[0021] Furthermore, to provide robust support for the internal core components, the ice cream machine is equipped with a support assembly. This assembly mainly includes a front support 12 and a rear support 13, which are fixed to the front and rear ends of the base plate 7, respectively. The bottom of a support plate 14 is connected to both the front support 12 and the rear support 13, thus forming a sturdy load-bearing platform for installing subsequent heavy-duty components such as the refrigeration tank assembly 1.
[0022] The core cooling function is achieved through a refrigeration system. This refrigeration system mainly includes a compressor 15, a condenser assembly 16, and a fan assembly 17. The compressor 15 is mounted on the base plate 7, while the fan assembly 17 is built into the rear support 13. The condenser assembly 16 is installed in the space between the rear cover 11 and the fan assembly 17. This arrangement allows the fan assembly 17 to directly draw in cooling air from the outside during operation, flow through the condenser assembly 16, and efficiently carry away the heat generated by the fan assembly 17 from the rear cover 11, forming a smooth heat dissipation airflow and thus ensuring the operating efficiency of the entire refrigeration system.
[0023] In this embodiment, the refrigeration cylinder assembly 1 employs an innovative structural design. The refrigeration cylinder assembly 1 mainly includes a cylindrical inner liner 2 for holding ice cream ingredients. A spiral tube 3, serving as an evaporator, is tightly wound around the outer wall of the inner liner 2, within which refrigerant flows to absorb heat. The inner liner 2 and the spiral tube 3 are housed together inside an evaporator cylinder 5. The innovation of this embodiment lies in the fact that a pre-formed foam insulation layer 4 is filled within the annular cavity between the spiral tube 3 and the evaporator cylinder 5. This foam insulation layer 4 replaces the traditional on-site foaming process; it is constructed by directly wrapping a layer of foam material with excellent thermal insulation properties around the outside of the spiral tube 3, thereby greatly simplifying the production process.
[0024] In addition, to facilitate the addition of raw materials by the user, a feeding port 18 is provided on the top cover 6 of the outer casing assembly. An inlet seat 19 is fixedly installed on the feeding port 18, making it more neat and durable. An openable inlet cover 20 is provided on the inlet seat 19 by means of hinges or buckles. When not adding materials, the inlet cover 20 can be tightly closed, effectively preventing external dust and impurities from entering the machine, ensuring hygiene and safety during the production process.
[0025] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An ice cream machine, comprising a shell assembly, a support assembly, a refrigeration system, and a refrigeration drum assembly (1), characterized in that: The refrigeration cylinder assembly (1) includes an inner liner (2), a spiral tube (3), a foam insulation layer (4), and an evaporator (5). The inner liner (2) is disposed inside the evaporator (5), the spiral tube (3) is disposed outside the inner liner (2), and the foam insulation layer (4) is disposed between the spiral tube (3) and the evaporator (5).
2. An ice cream machine according to claim 1, characterized in that: The outer casing assembly includes a top cover (6), a bottom plate (7), a left side plate (8), a right side plate (9), a front cover (10), and a rear cover (11). The bottom of the left side plate (8) is connected to the bottom plate (7), and the two sides of the left side plate (8) are respectively connected to the front cover (10) and the rear cover (11). The top of the left side plate (8) is connected to the top cover (6). The bottom of the right side plate (9) is connected to the bottom plate (7), and the two sides of the right side plate (9) are respectively connected to the front cover (10) and the rear cover (11). The top of the right side plate (9) is connected to the top cover (6). The bottom of the rear cover (11) is connected to the bottom plate (7), and the top of the rear cover (11) is connected to the top cover (6). The bottom of the front cover (10) is connected to the bottom plate (7).
3. An ice cream machine according to claim 2, characterized in that: The support assembly includes a front support (12), a rear support (13), and a support plate (14). The front support (12) and the rear support (13) are respectively located at the front end and the rear end of the base plate (7). The bottom of the support plate (14) is connected to the front support (12) and the rear support (13).
4. An ice cream machine according to claim 3, characterized in that: The refrigeration system includes a compressor (15), a condenser assembly (16), and a fan assembly (17). The compressor (15) is mounted on the chassis, the fan assembly (17) is mounted inside the rear support (13), and the condenser assembly (16) is mounted between the rear cover (11) and the fan assembly (17).
5. An ice cream machine according to claim 2, characterized in that: The top cover (6) is provided with a feeding port (18), and the feeding port (18) is provided with an inlet seat (19).
6. An ice cream machine according to claim 5, characterized in that: An inlet cover (20) is provided on the inlet seat (19).
