Multi-cavity heat insulation strip structure

Abstract

The utility model provides a kind of multi-cavity heat insulation strip structure, it is related to heat insulation strip technical field, including heat insulation strip body, the heat insulation strip body adopts "main cavity" and "microcavity" structure design, overall by surface layer and core layer constitute, the surface layer is composed of 30% glass reinforced PA66, thickness is 0.3mm, and there is polytetrafluoroethylene coating on its surface spraying, the core layer is composed of microcellular polyester amine material, this kind of heat insulation strip overall design novel, simple structure, adopt main cavity, multiple microcavity and gradient density composite design, thermal resistance is promoted 40%, its overall performance is stronger than traditional single cavity strip, so that multiple air isolation layers are formed in heat insulation strip, substantially improve heat insulation performance, the thermal resistance is promoted by the narrow gap design of microcavity, by setting 0.5mm thick oblique reinforcing rib between cavity, improve longitudinal shear strength and mechanical properties.The surface contains wear-resistant coating to effectively improve its durability and prolong service life, the setting of core layer effectively reduces heat conduction.

Description

Technical Field

[0001] This utility model belongs to the field of thermal insulation strip technology, and more specifically, it relates to a multi-cavity thermal insulation strip structure. Background Technology

[0002] Thermal break strips are materials specifically designed to improve the thermal insulation of buildings and vehicles, and are widely used in windows and door frames of modern buildings, as well as thermal insulation components of automobiles and other vehicles. Thermal break strips are the core component of through-bar thermal insulation profiles; they act as both a "broken bridge" in the heat transfer path of the aluminum profile to reduce heat transfer within the profile, and a structural connector between the aluminum profiles on both sides of the thermal insulation profile.

[0003] Based on the above, the inventors have discovered the following problems: Existing thermal insulation strips are mostly single-cavity or double-cavity, and thermal insulation strips typically improve their insulation performance through the arrangement of cavities; that is, the more cavities a thermal insulation strip has, the better the insulation. However, more cavities significantly reduce the mechanical strength of the thermal insulation strip. This results in insufficient force balance and mechanical properties of the thermal insulation strip. Furthermore, the structural stability and mechanical properties of multi-cavity thermal insulation strips with multiple cavities lead to a short service life, frequent replacements, and high application costs.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a multi-cavity thermal insulation strip structure in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effect of this utility model's multi-cavity thermal insulation strip structure are achieved through the following specific technical means: A multi-cavity thermal insulation strip structure includes a thermal insulation strip body. The thermal insulation strip body adopts a main cavity and micro-cavity structure design and is composed of a surface layer and a core layer. The surface layer is composed of 30% glass-reinforced PA66 with a thickness of 0.3 mm and is coated with polytetrafluoroethylene coating. The core layer is composed of micro-foamed polyesteramide (i.e., polyesteramine).

[0006] Furthermore, the micro-foamed polyesteramide (i.e., polyesteramine) used inside the core layer has a foaming material content of 15% and a density of 0.95 g / cm³.

[0007] Furthermore, the heat insulation strip body has one main cavity and four micro cavities, with the micro cavities evenly distributed around the main cavity, and reinforcing ribs provided inside both the main cavity and the micro cavities.

[0008] Compared with the prior art, the present invention has the following beneficial effects: This invention employs a composite design of a main cavity, multiple microcavities, and gradient density, increasing thermal resistance by 40%. Its overall performance surpasses that of traditional single-cavity strips. This design creates multiple air-insulating layers within the insulation strip, significantly improving thermal insulation performance. The narrow slit design of the microcavities enhances thermal resistance, while the 0.5mm thick diagonal reinforcing ribs between the cavities improve longitudinal shear strength and mechanical properties. A wear-resistant coating on the surface effectively enhances durability and extends service life, and the core layer effectively reduces heat conduction. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of a multi-cavity heat insulation strip structure according to the present invention.

[0010] Figure 2 This is a schematic diagram of a multi-cavity thermal insulation strip structure according to this utility model.

[0011] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Surface layer; 2. Core layer; 3. Microcavity; 4. Main cavity; 5. Reinforcing rib. Detailed Implementation

[0012] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0013] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0015] As attached Figure 1 To be continued Figure 2 As shown: This utility model provides a multi-cavity thermal insulation strip structure, including a thermal insulation strip body. The thermal insulation strip body adopts a main cavity 4 and a micro cavity 3 structure design, and is composed of a surface layer 1 and a core layer 2. The surface layer 1 is composed of 30% glass-reinforced PA66 with a thickness of 0.3mm, and is coated with polytetrafluoroethylene coating. The core layer 2 is composed of micro-foamed polyesteramide (i.e., polyesteramine). The main cavity 4 is filled with high barrier gas (such as argon) or low thermal conductivity foam, forming an air isolation layer with the micro cavity 3. The thermal resistance is improved through narrow slit design.

[0016] The core layer 2 uses micro-foamed polyesteramide (i.e., polyesteramine) with a foaming material content of 15% and a density of 0.95 g / cm³.

[0017] The thermal insulation strip body comprises one main cavity 4 and four microcavities 3, which are evenly distributed around the main cavity 4. Reinforcing ribs 5 are provided inside both the main cavity 4 and the microcavities 3. The longitudinal shear strength and mechanical properties are improved by incorporating 0.5mm thick diagonal reinforcing ribs between the cavities. A wear-resistant coating on the surface effectively enhances its durability and extends its service life, while the core layer 2 reduces heat conduction.

[0018] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A multi-cavity thermal insulation strip structure, comprising a thermal insulation strip body, characterized in that: The heat insulation strip body adopts a main cavity (4) and micro cavity (3) structure design, and is composed of a surface layer (1) and a core layer (2). The surface layer (1) is composed of 30% glass-reinforced PA66 with a thickness of 0.3mm, and is coated with polytetrafluoroethylene coating. The core layer (2) is composed of micro-foamed polyester amide material.

2. The multi-cavity thermal insulation strip structure as described in claim 1, characterized in that: The core layer (2) uses micro-foamed polyester amide with a foaming material content of 15% and a density of 0.95 g / cm³.

3. The multi-cavity thermal insulation strip structure as described in claim 1, characterized in that: The heat insulation strip body has one main cavity (4) and four micro cavities (3), and the micro cavities (3) are evenly distributed around the main cavity (4), and reinforcing ribs (5) are provided inside the main cavity (4) and the micro cavities (3).

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