隔热便携式冰柜板条箱储存容器室 3D 模型

描述

High-quality 3D assets at affordable prices — trusted by designers, engineers, and creators worldwide. Made with care to be versatile, accessible, and ready for your pipeline.

Included File Formats
This model is provided in 14 widely supported formats, ensuring maximum compatibility:
• - FBX (.fbx) – Standard format for most 3D software and pipelines
• - OBJ + MTL (.obj, .mtl) – Wavefront format, widely used and compatible
• - STL (.stl) – Exported mesh geometry; may be suitable for 3D printing with adjustments
• - STEP (.step, .stp) – CAD format using NURBS surfaces
• - IGES (.iges, .igs) – Common format for CAD/CAM and engineering workflows (NURBS)
• - SAT (.sat) – ACIS solid model format (NURBS)
• - DAE (.dae) – Collada format for 3D applications and animations
• - glTF (.glb) – Modern, lightweight format for web, AR, and real-time engines
• - 3DS (.3ds) – Legacy format with broad software support
• - 3ds Max (.max) – Provided for 3ds Max users
• - Blender (.blend) – Provided for Blender users
• - SketchUp (.skp) – Compatible with all SketchUp versions
• - AutoCAD (.dwg) – Suitable for technical and architectural workflows
• - Rhino (.3dm) – Provided for Rhino users

Model Info
• - All files are checked and tested for integrity and correct content
• - Geometry uses real-world scale; model resolution varies depending on the product (high or low poly)
• • - Scene setup and mesh structure may vary depending on model complexity
• - Rendered using Luxion KeyShot
• - Affordable price with professional detailing

Buy with confidence. Quality and compatibility guaranteed.
If you have any questions about the file formats, feel free to send us a message — we're happy to assist you!

Sincerely,
SURF3D
Trusted source for professional and affordable 3D models.

More Information About 3D Model :
**INSULATED PORTABLE ICE COOL BOX CRATE STORAGE CONTAINER CHAMBER**

An Insulated Portable Ice Cool Box, frequently categorized as a passive cooler, ice chest, or thermal storage container, is a specialized non-mechanical device designed for the temporary preservation of contents at temperatures significantly divergent from the ambient environment, typically below 10°C. While primarily associated with the refrigeration of perishable foodstuffs and beverages using water ice, high-performance variants are integral components in logistical operations requiring the strict maintenance of the cold chain, such as the transport of pharmaceuticals, vaccines, and biological samples.

**Nomenclature and Classification**

The specific terminology applied—cool box, crate, chest, or chamber—often denotes the unit’s intended robustness, capacity, and application. "Crate" or "Chest" generally implies a larger, more durable, and often rotomolded structure suitable for rugged outdoor or marine use, possessing a high insulation coefficient (R-value). "Cool box" or "Container" is a broader term encompassing general recreational and smaller personal-use units. Regardless of nomenclature, all variants operate based on the principle of passive thermal management.

**Construction and Materials**

The fundamental structure of an insulated cool box is a double-walled enclosure, forming a storage chamber (liner) nested within an outer casing. This interstitial space is critical for thermal isolation.

1. **Shells (Liner and Casing):** The internal liner and external casing are predominantly constructed from high-density, food-grade polymers such as linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE), or polypropylene (PP). These materials are chosen for their non-toxic nature, resistance to impact, and ease of hygienic cleaning. Marine-grade units may incorporate UV inhibitors into the exterior polymers to prevent degradation.
2. **Insulation Core:** The critical component governing thermal performance is the insulation core. In modern, high-efficiency containers, this space is densely filled with rigid closed-cell polyurethane (PU) foam, injected under pressure to ensure uniform distribution and minimal air pockets. PU foam offers superior insulating properties (low thermal conductivity, $\lambda$, typically between 0.020 and 0.030 W/(m·K)) compared to expanded polystyrene (EPS), which is often used in lower-cost, disposable models.
3. **Sealing and Hardware:** Effective temperature retention requires minimizing thermal bridges and air exchange. High-performance chests feature thick, continuous freezer-grade gaskets (often silicone or rubber) fitted around the lid periphery. Hardware, including hinges, latches, and tie-down points, is often heavy-duty and corrosion-resistant, typically utilizing marine-grade stainless steel.

**Mechanism of Thermal Management**

The device achieves temperature stability by minimizing the three primary modes of heat transfer: conduction, convection, and radiation.

1. **Conduction:** Minimized by the low thermal conductivity of the PU foam core and the use of air gaps within the closed-cell structure.
2. **Convection:** Controlled by the airtight gasket, which prevents the ingress of warmer external air and the escape of denser, cooler internal air.
3. **Radiation:** Managed to some extent by the reflective properties of light-colored outer casings, although this factor is secondary to conduction control.

Temperature regulation relies on the inclusion of a thermal sink. While ordinary water ice is common, professional or long-duration applications frequently employ eutectic phase-change materials (PCMs) or dry ice (solid carbon dioxide) to achieve specific, regulated temperature ranges, maintaining contents below freezing for extended periods.

**Design Features and Specifications**

Modern cool boxes incorporate numerous features enhancing utility and durability:

* **Rotomolding:** Many heavy-duty crates are manufactured via rotational molding, resulting in thick, uniform walls and highly robust single-piece construction resistant to severe external stress.
* **Drainage Systems:** Integrated, leak-proof drain plugs permit the easy removal of meltwater without tipping the container, ensuring contents remain above the waterline.
* **Capacity:** Units are specified by internal volumetric capacity, ranging from personal sizes (under 15 liters) to commercial storage units exceeding 350 liters.
* **Portability:** Features include heavy-duty rope handles, molded carrying slots, or integrated wheels for larger models.

KEYWORDS: Passive cooler, Ice chest, Insulated container, Cold chain logistics, Polyurethane foam, Thermal storage, Rotomolding, Eutectic materials, HDPE, Thermal insulation, Temperature preservation, Portable refrigeration, Storage crate, Ice retention, Thermal sink, Gasket seal, Conduction mitigation, Non-mechanical cooling, Perishables transport, Food-grade polymer, R-value, Closed-cell foam, Commercial cooler, Marine grade, Dry ice container, Phase-change material, Convection barrier, Hygienic storage, Latches, Durability.