Refrigerated compartment structure
By introducing a high-strength frame and insulation material layer into the refrigerated compartment structure, combined with a fiberglass surface layer, the problems of heavy weight and high cost of traditional refrigerated compartment structures have been solved, achieving both lightweighting and improved insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI JIANGLING GRP SPECIAL VEHICLE CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional refrigerated compartment structures rely on connecting aluminum profile structural components, resulting in high material costs and heavy overall weight, which affects transportation efficiency and cargo loading capacity.
The design combines a high-strength frame with aluminum profiles. By setting a high-strength frame inside the front panel, it forms an integrated load-bearing system with the top panel, left and right side panels and bottom panel. An insulation material layer and a fiberglass surface layer are added inside the front panel to reduce the amount and weight of aluminum profiles used.
While ensuring structural strength, it reduces material costs and overall weight, improves transportation efficiency and the stability and safety of the refrigerated compartment, and enhances thermal insulation and corrosion resistance.
Smart Images

Figure CN224409412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a refrigerated compartment structure. Background Technology
[0002] In the field of refrigerated transportation, refrigerated containers are key transportation equipment, and their structural strength, weight, and cost have a significant impact on transportation efficiency and economic benefits. Traditional refrigerated container structures typically use connecting aluminum profile structural components to connect and fix various parts, thereby constructing the load-bearing system of the container.
[0003] However, this traditional structure has some obvious drawbacks. On the one hand, since the load-bearing capacity of all components relies mainly on the connecting aluminum profile structural members, these members need to be quite thick to ensure structural strength, directly increasing material costs. On the other hand, the thicker connecting aluminum profile structural members result in a larger overall weight for the refrigerated compartment, which not only increases energy consumption and reduces transportation efficiency during transport, but also affects the cargo loading capacity in scenarios with strict vehicle load limits. Therefore, how to reduce material costs and overall weight while ensuring the structural strength of the refrigerated compartment has become a pressing technical problem to be solved in the refrigerated compartment manufacturing industry. Utility Model Content
[0004] The purpose of this utility model is to provide a refrigerated compartment structure that reduces material costs and overall weight while ensuring the structural strength of the refrigerated compartment.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a refrigerated compartment structure, the refrigerated compartment structure comprising:
[0006] In one embodiment, a base plate is fixed to the vehicle frame;
[0007] The front panel has a high-strength frame inside it, and the high-strength frame is fixedly connected to the bottom plate.
[0008] The front panel includes a top plate and left and right side plates. The top plate is located on the top of the front panel, and the left and right side plates are located on the left and right sides of the front panel. Both the top plate and the left and right side plates are fixedly connected to the high-strength frame inside the front panel.
[0009] The U-shaped plate is fixed to the bottom of the front plate and the left and right side plates by rivets, and the U-shaped plate is welded to the frame of the bottom plate.
[0010] In one embodiment, the front panel further includes:
[0011] A thermal insulation material layer, which is fixed to the high-strength frame;
[0012] A fiberglass surface layer, which covers both the inner and outer sides of the insulation material layer.
[0013] In one embodiment, the thermal insulation material layer includes a first thermal insulation layer and a second thermal insulation layer, one side of the first thermal insulation layer is fixedly connected to one side of the second thermal insulation layer, and the other side of the first thermal insulation layer and the other side of the second thermal insulation layer are both covered with the fiberglass surface layer.
[0014] The edge of the first insulation layer protrudes beyond the edge of the second insulation layer, forming a stepped surface, and the high-strength frame is located on the stepped surface.
[0015] In one embodiment, the thickness of the first insulation layer is 37 mm, and the thickness of the second insulation layer is 40 mm.
[0016] In one embodiment, the insulation layer is made of hollow polyurethane foam.
[0017] In one embodiment, the high-strength skeleton is a frame structure formed by hollow square tubes.
[0018] In one embodiment, the high-strength frame is connected to the top plate, left and right side plates, and bottom plate via threaded connections.
[0019] The above-described technical solutions in the embodiments of this utility model have at least the following technical effects or advantages:
[0020] The refrigerated compartment structure provided in this embodiment of the invention constructs an integrated load-bearing system by adding a high-strength frame inside the front panel. This design allows the front panel to effectively distribute the load borne by the traditional connecting aluminum profile structural components, thereby appropriately reducing the thickness of the connecting aluminum profile structural components. While ensuring the structural strength of the refrigerated compartment, the amount of aluminum profile material used is reduced, thereby lowering material costs and improving the product's economic efficiency. Because the thickness of the connecting aluminum profile structural components can be appropriately reduced, the overall weight of the refrigerated compartment is significantly reduced. This not only helps to reduce energy consumption during transportation and improve transportation efficiency, but also ensures that the high-strength frame inside the front panel is stably connected to the top panel, left and right side panels, and bottom panel, forming an integrated load-bearing system. This structure can more effectively distribute and bear various loads, improving the overall structural stability of the refrigerated compartment and enhancing its reliability and safety during transportation. Furthermore, by fixing U-shaped plates to the bottom of the left and right side panels and the front panel with rivets, and then welding the U-shaped plates to the frame of the bottom panel, the connection strength between the left and right side panels and the front and bottom panels is improved, enhancing the stability of the compartment. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the structure of the refrigerated compartment provided in the embodiment of this utility model;
[0023] Figure 2 An exploded view of the front panel provided in an embodiment of this utility model;
[0024] Figure 3 A schematic diagram of the front panel provided in an embodiment of this utility model;
[0025] Figure 4 for Figure 3 Cross-sectional view of the front and middle plates.
[0026] The labels for the various figures are as follows:
[0027] 1. Front panel; 2. Top panel; 3. Left and right side panels; 4. Threaded parts; 11. Insulation material layer; 12. Fiberglass surface layer; 13. High-strength frame; 111. First insulation layer; 112. Second insulation layer. Detailed Implementation
[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0029] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Please see Figures 1 to 4 This application provides a refrigerated compartment structure, including a floor, a front panel 1, a top panel 2, left and right side panels 3, and a U-shaped panel. The floor is fixed to a vehicle frame. A high-strength frame 13 is installed inside the front panel 1 and is fixedly connected to the floor. The top panel 2 is located at the top of the front panel 1, and the left and right side panels 3 are located on the left and right sides of the front panel 1. Both the top panel 2 and the left and right side panels 3 are fixedly connected to the high-strength frame 13 inside the front panel 1. The U-shaped panel is fixed to the bottom of the front panel and the left and right side panels by rivets, and is welded to the frame of the floor.
[0033] The high-strength frame 13 within the front panel 1 is securely connected to the top panel 2, left and right side panels 3, and floor, forming an integrated load-bearing system for the refrigerated compartment. This structure can more effectively distribute and bear various loads, improving the overall structural stability of the refrigerated compartment, enhancing its reliability and safety during transportation, and extending its service life. This design allows the front panel 1 to effectively share the load borne by traditional connecting aluminum profile structural components, thereby allowing for a suitable reduction in the thickness of these components. While maintaining the structural strength of the refrigerated compartment, this reduces the amount of aluminum profile material used, thus lowering material costs.
[0034] Optionally, the top plate 2 and the left and right side plates 3 can both adopt a sandwich structure with an outer fiberglass layer and an inner insulation layer. Since the floor plate needs to have high load-bearing capacity, it can be a structure with a high-strength metal plate at the bottom, and an upper surface successively covered with an insulation layer and a wear-resistant layer (such as a fiberglass layer). The floor plate can be fixed to the frame by mechanical connections (such as riveting, threaded connections, etc.) or welding.
[0035] In one embodiment, the front panel 1 further includes an insulation material layer 11 and a fiberglass surface layer 12, with the insulation material layer 11 fixed to the high-strength frame 13. The fiberglass surface layer 12 covers both the inner and outer sides of the insulation material layer 11. By providing the insulation material layer 11 inside the front panel 1, the insulation performance of the refrigerated compartment is improved, and cold air loss is reduced. Simultaneously, the fiberglass surface layer 12 not only enhances the structural strength of the front panel 1 but also provides excellent corrosion resistance and wear resistance, extending the service life of the refrigerated compartment.
[0036] In one embodiment, the insulation material layer 11 includes a first insulation layer 111 and a second insulation layer 112. One side of the first insulation layer 111 is fixedly connected to one side of the second insulation layer 112, and the other side of both the first insulation layer 111 and the second insulation layer 112 is covered with a fiberglass surface layer 12. The edge of the first insulation layer 111 protrudes beyond the edge of the second insulation layer 112, forming a stepped surface, and a high-strength frame 13 is located on the stepped surface.
[0037] The double-layer insulation design further enhances the insulation effect. The stepped surface formed by the protruding edge of the first insulation layer 111 allows the high-strength frame 13 to be firmly placed on it, enhancing the stability and integrity of the structure. This design also helps reduce thermal bridging effects and improves the energy efficiency of the refrigerated compartment.
[0038] The first insulation layer 111, the second insulation layer 112, the high-strength frame 13, and the fiberglass surface layer 12 can be fixed by adhesive.
[0039] Specifically, the first insulation layer 111 has a thickness of 37mm, and the second insulation layer 112 has a thickness of 40mm. Insulation layer 11 is made of hollow polyurethane foam, which has excellent insulation performance and lightweight properties, effectively reducing heat transfer and improving the insulation effect of the refrigerated compartment. At the same time, its lightweight properties also help reduce the overall weight of the refrigerated compartment, lowering energy consumption and transportation costs.
[0040] In one embodiment, the high-strength frame 13 is a frame structure formed by hollow square tubing. Using a frame structure formed by hollow square tubing as the high-strength frame 13 ensures both structural strength and stability while reducing the weight of the frame. This design helps reduce the overall weight of the refrigerated compartment, improves transportation efficiency, and reduces material costs. Specifically, the high-strength frame 13 can be made of aluminum alloy hollow square tubing.
[0041] In one embodiment, the high-strength frame 13 is connected to the top plate 2, left and right side plates 3, and bottom plate via threaded fittings 4. Connecting the high-strength frame 13 to the top plate 2, left and right side plates 3, and bottom plate via threaded fittings 4 achieves a stable connection between the various components of the body. This connection method makes the assembly and disassembly of the top plate 2, left and right side plates 3, and bottom plate more convenient.
[0042] 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, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A refrigerated compartment structure, characterized in that, The refrigerated compartment structure includes: A base plate, which is fixed to the vehicle frame; The front panel has a high-strength frame inside it, and the high-strength frame is fixedly connected to the bottom plate. The front panel includes a top plate and left and right side plates. The top plate is located on the top of the front panel, and the left and right side plates are located on the left and right sides of the front panel. Both the top plate and the left and right side plates are fixedly connected to the high-strength frame inside the front panel. The U-shaped plate is fixed to the bottom of the front plate and the left and right side plates by rivets, and the U-shaped plate is welded to the frame of the bottom plate. The front panel also includes: A thermal insulation material layer, which is fixed to the high-strength frame; A fiberglass surface layer, which covers both the inner and outer sides of the insulation material layer.
2. The refrigerated compartment structure according to claim 1, characterized in that: The insulation material layer includes a first insulation layer and a second insulation layer. One side of the first insulation layer is fixedly connected to one side of the second insulation layer, and the other side of the first insulation layer and the other side of the second insulation layer are both covered with the fiberglass surface layer. The edge of the first insulation layer protrudes beyond the edge of the second insulation layer, forming a stepped surface, and the high-strength frame is located on the stepped surface.
3. The refrigerated compartment structure according to claim 2, characterized in that: The thickness of the first insulation layer is 37mm, and the thickness of the second insulation layer is 40mm.
4. The refrigerated compartment structure according to claim 1, characterized in that: The insulation material layer is made of polyurethane foam.
5. The refrigerated compartment structure according to claim 1, characterized in that: The high-strength skeleton is a frame structure formed by hollow square tubes.
6. The refrigerated compartment structure according to claim 1, characterized in that: The high-strength frame is connected to the top plate, left and right side plates, and bottom plate via threaded connections.