Thermal insulation structure of ice maker

By separating the insulation structure from the inner liner, the problem of high material consumption, high cost, and insufficient environmental performance in existing ice makers is solved, achieving low-cost, high-efficiency, and environmentally friendly production.

CN224136152UActive Publication Date: 2026-04-17ZHONGSHAN DONLIM WEILI ELECTRICAL APPLIANCES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN DONLIM WEILI ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing ice maker production, the isocyanate and cyclopentane combined polyether foaming insulation technology has problems such as additional material consumption, high process complexity, high production cost, and insufficient environmental performance.

Method used

It adopts a split insulation structure, with the insulation components and the inner liner set separately. The insulation components are independently prefabricated and fitted onto the outer circumference of the inner liner. Positioning and installation are achieved using positioning assembly components, and a seamless and airtight insulation structure is formed through integrated foaming molding.

Benefits of technology

It reduced production costs, simplified production processes, shortened production cycles, improved environmental performance, and reduced chemical emissions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ice machines, and provides an ice machine heat preservation structure which comprises a heat preservation part arranged on an inner container, the heat preservation part and the inner container are arranged in a split mode, the heat preservation part is installed on the outer side of the inner container in a sleeved mode, the heat preservation part is provided with a heat preservation inner cavity used for wrapping the peripheral side of the inner container, and a positioning assembly assembly is arranged between the inner container and the heat preservation part. The heat preservation piece is installed on the outer side of the inner container in a sleeving mode through the positioning assembling assembly. The heat preservation part and the inner container are arranged in a split mode, the heat preservation part is arranged on the peripheral side of the inner container in a sleeving mode, the split type heat preservation structure breaks through strong dependence of a traditional foaming technology on whole machine assembly, and the heat preservation part is produced in advance through the independently prefabricated heat preservation part. The thermal insulation part can be separated from a main machine production line of the ice maker to be independently manufactured and does not need to be protected by a plastic part in advance, the cost is reduced, the procedure of forming a thermal insulation layer through foaming of a traditional whole machine is omitted, and the production period of the whole machine is greatly shortened.
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Description

Technical Field

[0001] This utility model relates to the technical field of ice makers, specifically to an ice maker insulation structure. Background Technology

[0002] Currently, commercially available ice makers generally use in-situ foaming insulation technology based on a combination of isocyanate and cyclopentane polyether. This process has significant drawbacks: First, a plastic protective layer must be used to constrain the foam morphology during foaming, leading to additional material consumption and process complexity. Second, the foaming process must be synchronized with the assembly of the entire machine, limiting the parallelization of the production process. Third, chemical foaming agents pose a problem of volatile organic compound emissions, failing to meet green manufacturing requirements. Finally, the complex mold preparation and curing processes significantly increase production costs. These technological bottlenecks severely restrict the improvement of ice makers' production efficiency and environmental performance. Utility Model Content

[0003] This invention proposes a heat preservation structure for an ice maker, in which the heat preservation component and the inner liner are separately designed. The heat preservation component is fitted onto the outer periphery of the inner liner. This separate heat preservation structure breaks through the strong dependence of traditional foaming processes on the overall assembly of the machine. By using independently prefabricated heat preservation components, the heat preservation component can be manufactured separately from the ice maker's main production line. The heat preservation component does not need to be protected by plastic parts beforehand, reducing costs and eliminating the traditional process of forming the heat preservation layer through foaming, thus significantly shortening the overall production cycle.

[0004] An ice maker insulation structure designed for this purpose includes an insulation component installed on the inner liner. The insulation component and the inner liner are separately installed. The insulation component is sleeved on the outer side of the inner liner and has an insulation cavity for enclosing the outer periphery of the inner liner.

[0005] The insulation material is insulation foam. A positioning assembly is provided between the inner liner and the insulation. The insulation is installed on the outside of the inner liner by positioning and sleeve through the positioning assembly.

[0006] The insulation component includes front foam, rear foam, side foam and bottom foam, which together form an open-top insulation cavity that is assembled with the inner liner.

[0007] The front foam, rear foam, side foam and bottom foam of the insulation component are integrally foamed and formed to form a continuous and sealed circumferential insulation structure, so as to form a seamless and sealed insulation foam that wraps the inner liner.

[0008] An ice-making chamber is provided on one side of the inner liner, and the insulation component has an installation clearance space corresponding to the ice-making chamber.

[0009] The insulation component is provided with a first positioning groove that cooperates with the positioning and installation of the inner liner.

[0010] The inner liner is set on the bottom plate, and the insulation component is provided with a second positioning groove that cooperates with the positioning and installation of the bottom plate. The insulation component is sleeved on the outer periphery of the inner liner and is positioned and installed on the bottom plate through the second positioning groove.

[0011] The heat-insulating inner cavity is provided with a guide corner mating surface that mates with the inner liner. The guide corner mating surface is arc-shaped, and the inner liner is assembled into the heat-insulating inner cavity of the heat-insulating component through the guide corner mating surface.

[0012] The heat-insulating inner cavity is provided with mounting protrusions, which protrude from the inner wall of the heat-insulating inner cavity. The inner liner is installed inside the heat-insulating inner cavity, and the mounting protrusions abut against the outer side of the inner liner.

[0013] The heat-insulating inner cavity is provided with side protrusions, which protrude from the inner side of the heat-insulating inner cavity and form a reinforcing structure that increases the mechanical strength of the heat-insulating component.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] The insulation component and the inner liner are designed as separate units. The insulation component is fitted onto the outer periphery of the inner liner. This separate insulation structure breaks away from the strong dependence of traditional foaming processes on the overall assembly of the machine. By using independently prefabricated insulation components, the insulation components can be manufactured separately from the ice maker's main production line. The insulation components do not need to be protected by plastic parts beforehand, reducing costs and eliminating the traditional process of forming the insulation layer through foaming, thus significantly shortening the overall production cycle. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the inner liner of the insulation component according to an embodiment of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the inner liner of the insulation component in one embodiment of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of an insulation component according to an embodiment of the present invention.

[0019] Figure 4 This is an exploded view of the assembly structure of the insulation component and the inner liner according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the thermal insulation component and the inner liner in one embodiment of the present invention. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0022] See Figures 1-5 An ice maker insulation structure includes an insulation component 2 disposed on an inner liner 1. The insulation component 2 and the inner liner 1 are separately disposed. The insulation component 2 is sleeved and installed on the outer side of the inner liner 1, and the insulation component 2 is provided with an insulation cavity 3 for enclosing the outer periphery of the inner liner 1.

[0023] A positioning assembly 6 is provided between the inner liner 1 and the insulation component 2. The insulation component 2 is installed on the outside of the inner liner 1 by positioning and sleeve through the positioning assembly 6.

[0024] In this embodiment, the positioning assembly 6 includes a boss on the inner side of the insulation component 2 and a protrusion on the inner side of the inner liner 1. The protrusion protrudes from the inner side of the inner liner 1 to form a groove on the outer side of the inner liner 1. When the insulation component 2 and the inner liner 1 are assembled, the boss is aligned with the groove. When the insulation component 2 and the inner liner 1 are in place, the boss is positioned on the groove.

[0025] Alternatively, in this embodiment, the positioning assembly 6 further includes a first positioning step disposed on the insulation component 2 and a second positioning step disposed on the inner liner 1. When the insulation component 2 and the inner liner 1 are assembled in place, the second positioning step is supported on the first positioning step.

[0026] The insulation component 2 and the inner liner 1 are separate units. The insulation component 1 is fitted onto the outer periphery of the inner liner 1. This separate insulation structure breaks through the strong dependence of traditional foaming processes on the overall assembly. By using independently prefabricated insulation component 2, the insulation component 2 can be manufactured separately from the ice maker's main production line. The insulation component 2 does not need to be protected by plastic parts beforehand, reducing costs and eliminating the traditional process of forming the insulation layer through foaming, thus significantly shortening the overall production cycle.

[0027] The insulation component 2 is made of insulation foam.

[0028] The insulation component 2 includes a front foam 2.1, a rear foam 2.2, a side foam 2.3, and a bottom foam 2.4. The front foam 2.1, the rear foam 2.2, the side foam 2.3, and the bottom foam 2.4 together form an insulation cavity 3 with an open top that is assembled with the inner liner 1.

[0029] In this embodiment, the top of the insulation component 2 is open, which makes it easy for the inner liner 1 to be installed in the insulation cavity 3 from the top of the insulation component 2.

[0030] The front foam 2.1, rear foam 2.2, side foam 2.3 and bottom foam 2.4 of the insulation component 2 are integrally foamed and formed to form a continuous closed circumferential insulation structure, so as to form a seamless closed insulation foam that wraps the inner liner 1.

[0031] The insulation component 2 is integrally foamed to form a seamless insulation barrier, eliminating interfacial heat loss between separate components and improving the insulation effect on the inner liner 1.

[0032] An ice-making chamber 4 is provided on one side of the inner liner 1, and the insulation component 2 is provided with an installation clearance 2.5 corresponding to the ice-making chamber 4. When the insulation component 2 is assembled with the inner liner 1, the insulation component 2 does not interfere with the ice-making chamber 4, and the structure is compact.

[0033] The insulation component 2 is provided with a first positioning groove 2.6 that cooperates with the inner liner 1 for positioning and installation.

[0034] The inner liner 1 is disposed on the bottom plate 5. The insulation component 2 is provided with a second positioning groove 2.7 that is positioned and installed with the bottom plate 5. The insulation component 2 is sleeved on the outer periphery of the inner liner 1 and positioned and installed on the bottom plate 5 through the second positioning groove 2.7.

[0035] In this embodiment, the base plate 5 is provided with a positioning frustum that mates with the second positioning groove 2.7. The second positioning groove 2.7 is provided with a guide opening. When the insulation component 2 is installed on the base plate 5, the positioning frustum is guided and limited on the second positioning groove 2.7 through the guide opening.

[0036] When the inner liner 1 and the insulation component 2 are installed together on the base plate 5, the second positioning groove 2.7 can prevent the insulation component 2 from moving on the base plate 5, thus achieving positioning assembly.

[0037] The heat-insulating inner cavity 3 is provided with a guide corner mating surface 2.8 that mates with the inner liner 1. The guide corner mating surface 2.8 is arc-shaped. The inner liner 1 is assembled into the heat-insulating inner cavity 3 of the heat-insulating component 2 through the guide corner mating surface 2.8.

[0038] The arc-shaped guide corner mating surface 2.8 facilitates the relative insertion of the inner liner 1 into the heat-insulating inner cavity 3.

[0039] The heat-insulating inner cavity 3 is provided with an installation protrusion 2.9, which protrudes from the inner wall of the heat-insulating inner cavity 3. The inner liner 1 is installed in the heat-insulating inner cavity 3, and the installation protrusion 2.9 abuts against the outer side of the inner liner 1.

[0040] The heat-insulating inner cavity 3 is provided with a side protrusion 2.10. The side protrusion 2.10 protrudes from the inner side of the heat-insulating inner cavity 3 and forms a reinforcing structure that increases the mechanical strength of the heat-insulating component 2 and improves the deformation resistance of the heat-insulating component 2.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An ice maker insulation structure, characterized by: It includes a heat-insulating component (2) installed on the inner liner (1). The heat-insulating component (2) and the inner liner (1) are separately installed. The heat-insulating component (2) is installed on the outer side of the inner liner (1) in a sleeve-like manner, and the heat-insulating component (2) has a heat-insulating inner cavity (3) for encapsulating the outer periphery of the inner liner (1).

2. The ice maker insulation structure of claim 1, wherein: The insulation component (2) is made of insulation foam; a positioning assembly component (6) is provided between the inner liner (1) and the insulation component (2), and the insulation component (2) is installed on the outside of the inner liner (1) by positioning and sleeve through the positioning assembly component (6).

3. The ice maker insulation structure of claim 2, wherein: The insulation component (2) includes a front foam (2.1), a rear foam (2.2), a side foam (2.3) and a bottom foam (2.4). The front foam (2.1), the rear foam (2.2), the side foam (2.3) and the bottom foam (2.4) together form an insulation cavity (3) with an open top and assembled with the inner liner (1).

4. The ice maker insulation structure of claim 3, wherein: The front foam (2.1), rear foam (2.2), side foam (2.3) and bottom foam (2.4) of the insulation component (2) are integrally foamed and formed to form a continuous closed circumferential insulation structure, so as to form a seamless closed insulation foam that wraps the inner liner (1).

5. The ice maker insulation structure of claim 1, wherein: The inner liner (1) has an ice-making chamber (4) on one side, and the insulation component (2) has an installation clearance position (2.5) corresponding to the ice-making chamber (4).

6. The ice maker insulation structure of claim 1, wherein: The insulation component (2) is provided with a first positioning groove (2.6) that cooperates with the inner liner (1) for positioning and installation.

7. The ice maker insulation structure of claim 1, wherein: The inner liner (1) is set on the bottom plate (5), and the insulation component (2) is provided with a second positioning groove (2.7) that is positioned and installed with the bottom plate (5). The insulation component (2) is sleeved on the outer periphery of the inner liner (1) and positioned and installed on the bottom plate (5) through the second positioning groove (2.7).

8. The ice maker insulation structure of claim 1, wherein: The heat-insulating inner cavity (3) is provided with a guide corner mating surface (2.8) that mates with the inner liner (1). The guide corner mating surface (2.8) is arc-shaped. The inner liner (1) is assembled into the heat-insulating inner cavity (3) of the heat-insulating component (2) through the guide corner mating surface (2.8).

9. The ice maker insulation structure of claim 1, wherein: The heat-insulating inner cavity (3) is provided with an installation protrusion (2.9). The installation protrusion (2.9) protrudes from the inner wall of the heat-insulating inner cavity (3). The inner liner (1) is installed in the heat-insulating inner cavity (3), and the installation protrusion (2.9) abuts against the outer side of the inner liner (1).

10. The ice maker insulation structure of claim 1, wherein: The heat-insulating inner cavity (3) is provided with a side protrusion (2.10). The side protrusion (2.10) protrudes from the inner side of the heat-insulating inner cavity (3) and forms a reinforcing structure that increases the mechanical strength of the heat-insulating component (2).