Composite structure and profile having the same

Abstract

The utility model relates to the technical field of composite structure, more particularly to a kind of composite structure and section bar with it. To balance the cost of composite structure, process complexity and connection stability, the following scheme is used: composite structure includes the second base material connected on the first base material, the melting point of second base material is lower than the first base material, and second base material is fixedly connected with the first base material by melting solidification. Section bar includes: first connecting structure is arranged on the first base material, second connecting structure is arranged on the second base material, first connecting structure and second connecting structure are mutually embedded, and second connecting structure is melted and solidified in first connecting structure. In this way, the double connection of macroscopic buckle and microscopic anchor point is formed. This connection mode not only is convenient to assemble, but also can effectively enhance the binding force of two kinds of materials, prevent falling off, and guarantee the long-term use reliability of composite structure.

Description

Technical Field

[0001] This utility model relates to the field of composite structure technology, and more specifically to a composite structure and a profile having the same. Background Technology

[0002] Balancing the performance and cost of profile structures has always been a core concern in the building and home furnishing industry. Single metal profiles inherently suffer from high thermal conductivity, resulting in poor insulation performance of doors and windows. This leads to heat loss in winter and the introduction of high temperatures in summer, increasing building energy consumption. On the other hand, while single thermoplastic profiles offer advantages such as light weight, good insulation, and flexible decoration, their insufficient strength and rigidity make them unable to withstand strong winds and impacts. Long-term use can lead to deformation and sagging, failing to meet the structural stability requirements of doors and windows. To address the shortcomings of single materials, while existing technologies have attempted to combine two materials, further optimization is needed. For example, while existing PVC windows offer excellent insulation, they are prone to deformation. The steel reinforcement within PVC windows requires secondary reinforcement, which is heavy, and the steel reinforcement cannot be welded within the PVC cavity, resulting in weak joints at various points. Although high-end aluminum-plastic composites can improve these issues, their high cost makes them difficult for small factories to manufacture. Therefore, balancing the cost, process complexity, and connection stability of composite structures is a crucial focus in this field. Utility Model Content

[0003] This utility model provides a composite structure and a profile having the same, with the aim of balancing the cost, process complexity and connection stability of the composite structure profile.

[0004] The above objectives are achieved through the following technical solutions:

[0005] A composite structure includes a first substrate, a second substrate connected to the first substrate, the second substrate having a lower melting point than the first substrate, the second substrate being fixedly connected to the first substrate by melting and solidification, or in other words, the second substrate having a solidified molten portion, the solidified molten portion being in contact with and fixedly connected to the first substrate, and the solidified molten portion being embedded / inserted into the first substrate.

[0006] The first substrate is metal or wood, and the second substrate is thermoplastic material.

[0007] The first substrate is one of steel, aluminum alloy, and copper alloy. When the first substrate is steel, the steel is one of 304, 316 stainless steel, and hot-dip galvanized steel. The second substrate is thermoplastic.

[0008] Thermoplastic plastics are one of polyamide, polyvinyl chloride and polybutylene terephthalate.

[0009] A profile having a first connecting structure on a first substrate and a second connecting structure on a second substrate, wherein the first connecting structure and the second connecting structure are interlocked.

[0010] The first connecting structure is a hole provided on the first substrate, and the second connecting structure is a protrusion that mates with the hole and is fixed on the second substrate.

[0011] The first connecting structure is a convex rail, and the second connecting structure is a guide groove adapted to the convex rail.

[0012] The convex rail is an arrow-shaped rail, and the guide groove is an arrow-shaped guide groove adapted to the arrow-shaped rail; or, the convex rail is a wedge-shaped rail that converges on both sides, and the guide groove is a wedge-shaped guide groove adapted to the wedge-shaped rail; or the convex rail is a hook-shaped protrusion, and the guide groove is a hook-shaped guide groove adapted to the hook-shaped protrusion; or the convex rail is an arc-shaped protrusion, and the guide groove is an arc-shaped guide groove adapted to the arc-shaped protrusion.

[0013] The first connecting structure is a groove provided on the first substrate, and the second connecting structure is a second protrusion adapted to the groove.

[0014] The groove can be one of the following: round groove, square groove, irregular groove, and limiting channel.

[0015] The beneficial effects of this composite structure and the profile having it are as follows:

[0016] The first base material is metal, whose excellent strength and rigidity can withstand strong wind loads and external impacts, significantly improving the windows' resistance to deformation and sagging, and ensuring long-term stability. Meanwhile, the second base material is thermoplastic, which, combined with the metal base material, forms a structure of a metal frame and a plastic insulation layer. The low thermal conductivity of the plastic effectively reduces heat transfer, improving the windows' insulation performance in winter and heat insulation performance in summer. Furthermore, compared to PVC windows, the combination of aluminum alloy and plastic results in a lower weight.

[0017] The thermoplastic outer layer can be dyed and has a smooth surface with minimized seams, making it suitable for various architectural styles and offering a wider range of aesthetic choices. At the same time, the plastic has excellent resistance to humidity and UV radiation, reducing the corrosive effects of the external environment on the profiles and extending the overall lifespan of doors and windows.

[0018] Thermoplastic plastics are easy to extrude, bend, and melt-connect, and can be made into outer profiles with complex cross sections. Assembly with metal keel can be achieved through simple processes such as snap-fit, bonding, and screw fixing. Compared with the processing technology of all-metal doors and windows, it is more efficient, has lower labor costs, and is more suitable for the development needs of local small and medium-sized door and window factories.

[0019] By setting mutually cooperating first and second connecting structures on the first and second substrates, and combining this with molecular anchoring in the molten state of the second substrate, a dual connection of macroscopic snap-fit ​​and microscopic anchor points is formed. This connection method not only facilitates assembly but also effectively enhances the bonding force between the two materials, prevents detachment, and ensures the long-term reliability of the composite structure.

[0020] The composite structure offers flexible material selection and connection methods. The first substrate can be made of different types of metal or wood, and the second substrate can be made of thermoplastic plastics with different properties, which can meet the needs of multiple fields such as doors and windows, furniture, and decoration. It has outstanding application value, especially in the field of doors and windows. Attached Figure Description

[0021] Figure 1 Example 1: A schematic diagram of a profile with a composite structure Figure 1 ;

[0022] Figure 2 for Figure 1 Cross-sectional view of the structure;

[0023] Figure 3 Example 1: A schematic diagram of a profile with a composite structure Figure 2 ;

[0024] Figure 4 for Figure 3 Cross-sectional view of the structure;

[0025] Figure 5 Schematic diagrams of combinations of embodiments two and three for the first substrate;

[0026] Figure 6 Schematic diagrams of combinations of embodiments two and three for the second substrate;

[0027] Figure 7 These are schematic diagrams of the second and third embodiments of the composite structure.

[0028] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0029] Figures 9 to 12 This is a schematic diagram of the groove on the first substrate.

[0030] In the figure: 1. First substrate; 1-1. Hole; 2. Second substrate; 1-2-1. Arrow-shaped rail; 1-2-2. Wedge-shaped rail; 1-4-1. Inverted T-shaped channel; 1-4-2. First recessed surface; 1-4-3. Trapezoidal channel; 1-4-4. Second recessed surface; 2-1. Arrow-shaped guide groove; 2-2. Wedge-shaped guide groove; 1-3-1. Hook-shaped protrusion; 1-3-2. Arc-shaped protrusion; 2-3. Hook-shaped guide groove; 2-4. Arc-shaped guide groove. Detailed Implementation

[0031] A composite structure includes a first substrate 1 and a second substrate 2 connected to the first substrate 1. The second substrate 2 can be molten after heating. A portion of the second substrate 2 in the molten state contacts the first substrate 1. After the molten portion solidifies, it is fixed to the first substrate 1.

[0032] The first base material 1 is a metal, one of aluminum alloy, steel, or copper alloy. Aluminum alloy is preferred based on requirements, considering lightweight, weather resistance, and cost-effectiveness. Steel can be used to resist strong wind loads. When selecting steel, 304 / 316 stainless steel or hot-dip galvanized steel can be used in coastal areas. Copper alloy framing can be selected for high-end decoration and traditional architectural styles.

[0033] The second substrate 2 is a thermoplastic material, preferably a thermoplastic plastic, and is one of polyamide (PA), nylon, polyvinyl chloride (PVC), or polybutylene terephthalate (PBT). In the selection of thermoplastic plastics, PVC can imitate wood grain and metallic colors, PA can be dyed, and its smooth surface can minimize the appearance of seams, making it suitable for different architectural styles and offering a wider range of aesthetic choices. Although the second substrate 2 can also be made of a metal with a lower melting point than the first substrate 1, the cost is higher. Of course, the first substrate 1 can also be made of wood, but it needs to contain moisture or be sprayed with water mist before use, and the second substrate 2 must be a thermoplastic material.

[0034] The advantages are:

[0035] Firstly, the primary substrate is metal, whose strength and rigidity can withstand strong winds and external impacts, improving the doors' and windows' resistance to deformation and sagging, and ensuring long-term stability. Although metal has a high thermal conductivity, metal doors and windows alone have poor insulation. However, combining metal with plastic as the outer layer can form a composite structure of a metal frame and a plastic insulation layer, reducing heat transfer, improving the doors' and windows' insulation performance in winter and summer, and reducing energy consumption.

[0036] Secondly, the thermoplastic outer layer can also serve as decoration and provide protection against humidity and ultraviolet radiation, without bearing the main stress. This allows for more flexible material selection and extends the overall service life of doors and windows.

[0037] Thirdly, using a second base material (such as aluminum alloy or stainless steel) can reduce costs. Using plastic for the outer layer reduces metal usage and lowers overall material costs. Furthermore, thermoplastics are easy to extrude, bend, and melt-bond, allowing for the creation of complex cross-section outer profiles that can be assembled with metal frames using methods such as clips, adhesives, and screws. The process is simple, more efficient than all-metal doors and windows, and has lower labor costs, making it suitable for local door and window manufacturers.

[0038] Fourth, plastic itself has a certain sound insulation effect, and an "air gap" can be formed between the outer plastic layer and the metal keel, further improving the sound insulation performance of doors and windows.

[0039] A profile having the above-mentioned composite structure has a first connecting structure on a first substrate 1 and a second connecting structure on a second substrate 2, wherein the first connecting structure and the second connecting structure can cooperate with each other to form a snap fastener.

[0040] Example 1:

[0041] For example Figure 1 and 2 The first connecting structure is a hole 1-1 provided on the first substrate 1, and the second connecting structure is a protrusion that mates with the hole 1-1 and is fixed on the second substrate 2. The protrusion is not merely inserted into and snapped into the hole 1-1; the protrusion can also be connected to the first substrate 1 in a molten state.

[0042] For example Figure 2 and 3 When the first substrate 1 has a second connecting structure connected to both face-to-face surfaces, a connecting bridge is formed by injecting molten second substrate 2 into the hole 1-1 on the first substrate 1, thus fixing the double-sided second substrate 2 to the connecting bridge and bonding it with the first substrate 1. Alternatively, a mold can be used, in which the first substrate 1 is placed, and the molten second substrate 2 fills the space between the inner wall of the mold and the first substrate 1, with the molten state flowing from one side of the first substrate 1 through the hole 1-1 to the other side. It is important to note that the inventive point that this application seeks to protect is the connection concept and method between the first substrate 1 and the second substrate 2, not the mold itself. The mold mentioned here is mainly used to limit the shape and size of the second substrate 2, and is only intended as an over-disclosure to help those skilled in the art understand one of the molding methods of the double-sided second substrate 2.

[0043] This embodiment mainly refers to Figures 1 to 4 However, it is worth noting that the shapes of the first substrate 1 and the second substrate 2 are not limited; they can be plate-shaped or have cavities.

[0044] Example 2:

[0045] For example Figure 5 The first connecting structure is a convex rail, which can be an arrow-shaped rail 1-2-1 or a wedge-shaped rail 1-2-2 that converges on both sides. Figure 5 In the middle of the top section, there is a wedge-shaped rail 1-2-2, and on the left and right sides are arrow-shaped rails 1-2-1, which can improve the stability of the part connecting with other objects. The second connection structure is a guide groove that adapts to the convex rail.

[0046] For example, in 4 and 5, the guide groove is either the arrow-shaped guide groove 2-1 that adapts to the arrow-shaped rail 1-2-1, or the wedge-shaped guide groove 2-2 that adapts to the wedge-shaped rail 1-2-2. The explanation of "adaptation" is that it allows the two adapted rails to interlock and fit together. The bottom edge of the wedge-shaped rail 1-2-2 furthest from the wedge-shaped guide groove 2-2 is the short edge, and the top edge of the wedge-shaped rail 1-2-2 closest to the wedge-shaped guide groove 2-2 is the long edge.

[0047] The convex rail can also function as a hook to limit the second substrate 2 in a certain degree of freedom, for example, it can be a hook-shaped protrusion 1-3-1, for example. Figure 7 and 8 Alternatively, it can be an arc-shaped protrusion 1-3-2. In this case, the guide groove is a hook-shaped guide groove 2-3 adapted to the hook-shaped protrusion 1-3-1, or an arc-shaped guide groove 2-4 adapted to the arc-shaped protrusion 1-3-2.

[0048] Example 3:

[0049] The first connecting structure is a groove provided on the first substrate 1. Similarly to Embodiment 2, the second connecting structure is a second protrusion whose shape and size can match the groove; this matching shape and size further explains the adaptation. When the molten second substrate 2 enters the groove and solidifies, the second substrate 2 can form a macroscopic connection by engaging or hooking with the second protrusion that matches the groove. This macroscopic connection, combined with the molecular penetration and anchoring of the second substrate 2 onto the first substrate 1 after thermal melting, increases the number of microscopic anchor points, enhancing the bonding force between the two materials and preventing detachment.

[0050] refer to Figure 3 The groove of the second substrate 2:

[0051] Firstly, the groove can be a round groove, a square groove, or an irregularly shaped groove.

[0052] Secondly, in order to facilitate the molding and processing of the first substrate 1 and to have good connection performance, the groove is a limiting channel.

[0053] For example Figure 8 and 9 The limiting channel has an inverted T-shaped channel 1-4-1 in cross section. Alternatively, a first recessed surface 1-4-2 facing the depth of the limiting channel can be formed at the necking section of the inverted T-shaped channel 1-4-1.

[0054] For example Figure 10 The limiting channel has a trapezoidal channel cross-section 1-4-3 and may have a necked section at the top or not have a necked section. In embodiment two, for example... Figure 5 The arrow-shaped rail 1-2-1 and the wedge-shaped rail 1-2-2 can naturally form a trapezoidal channel 1-4-3 without a narrowing section. This is the purpose of using the adjacent arrow-shaped rail 1-2-1 and the wedge-shaped rail 1-2-2.

[0055] Alternatively, a second recessed surface 1-4-4 can be formed at the necking section, facing the depth of the limiting channel, for example... Figure 11 If the second concave surface 1-4-4 is a folded surface, the hook-shaped protrusion 1-3-1 mentioned above can be formed.

[0056] Thirdly, for example Figure 12 The cross-section of the limiting channel is a parallelogram with an acute angle at the depth, and the hypotenuse of the parallelogram is similar to the first recessed surface 1-4-1.

[0057] In any of the above embodiments, when the second connecting structure is essentially a hole / groove / cavity structure, it is preferably placed in the groove / cavity structure in a fully fused and filled state.

[0058] This application has a wide range of applications, with the primary area of ​​development expected to be doors and windows. In actual production and processing, the second substrate 2 can be entirely molten and bonded to at least one side of the first substrate 1, or as... Figure 8 The diagram shows a fully covered state, or the second substrate 2 is in a molded state. After being spliced ​​to the first substrate 1, the second profile is heated and melted at the location requiring heat fusion fixation, and then spliced ​​onto the first substrate 1. This allows the molten portion of the second substrate 2 to cool and fix onto the first substrate 1, or to cool, fix, and snap onto the first substrate 1. Preferably, the protruding portion of the second substrate can be melted and solidified onto the first substrate. This allows the second connecting structure, which serves as a protrusion, to form an insertion connection with the hole 1-1 while simultaneously melting and solidifying, increasing the stability of the connection.

Claims

1. A composite structure comprising a first substrate (1), characterized in that, A second substrate (2) is connected to the first substrate (1). The melting point of the second substrate (2) is lower than that of the first substrate (1). The second substrate (2) is fixedly connected to the first substrate (1) by melting and solidification.

2. The composite structure according to claim 1, characterized in that, The first substrate (1) is metal or wood, and the second substrate (2) is thermoplastic material.

3. The composite structure according to claim 1, characterized in that, The first substrate (1) is a metal, which is one of steel, aluminum alloy and copper alloy. When the first substrate (1) is steel, the steel is one of 304, 316 stainless steel and hot-dip galvanized steel. The second substrate (2) is a thermoplastic.

4. The composite structure according to claim 3, characterized in that, Thermoplastic plastics are one of polyamide, polyvinyl chloride and polybutylene terephthalate.

5. A profile using the composite structure of any one of claims 1 to 4, characterized in that, A first connecting structure is provided on a first substrate (1), and a second connecting structure is provided on a second substrate (2). The first connecting structure and the second connecting structure are interlocked, and the second connecting structure is fused and solidified within the first connecting structure.

6. The profile according to claim 5, characterized in that, The first connecting structure is a hole (1-1) provided on the first substrate (1), and the second connecting structure is a protrusion that mates with the hole (1-1) and is fixed on the second substrate (2).

7. The profile according to claim 5, characterized in that, The first connecting structure is a convex rail, and the second connecting structure is a guide rail with guide grooves that is adapted to the convex rail.

8. The profile according to claim 7, characterized in that, The convex rail is an arrow-shaped rail (1-2-1), and the guide groove is an arrow-shaped guide groove (2-1) adapted to the arrow-shaped rail (1-2-1). Alternatively, the convex rail is a wedge-shaped rail that converges on both sides (1-2-2), and the guide groove is a wedge-shaped guide groove (2-2) adapted to the wedge-shaped rail (1-2-2). Alternatively, the convex rail is a hook-shaped protrusion (1-3-1), and the guide groove is a hook-shaped guide groove (2-3) adapted to the hook-shaped protrusion (1-3-1). Alternatively, the convex rail is an arc-shaped protrusion (1-3-2), and the guide groove is an arc-shaped guide groove (2-4) adapted to the arc-shaped protrusion (1-3-2).

9. The profile according to claim 5, characterized in that, The first connecting structure is a groove provided on the first substrate (1), and the second connecting structure is a second protrusion adapted to the groove.

10. The profile according to claim 9, characterized in that, The groove is one of the following: round groove, square groove, irregular groove, and limiting channel.

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