CN219727494U - Composite material structure, shell, decoration and electronic equipment - Google Patents

Abstract

The utility model provides a composite material structure, a shell, a decoration and electronic equipment using the composite material structure, wherein the composite material structure comprises at least one resin layer and at least one reinforcing material layer which are arranged in a laminated mode, at least the resin layer positioned on the outermost layer of the composite material structure comprises a plurality of appearance effect areas which are arranged along the horizontal direction, and the appearance effect areas have at least two different appearance effects. According to the utility model, the reinforcing material layer is arranged on the resin layer, so that the reinforcing material layer plays a role in reinforcing, the strength and the modulus of the composite material structure are improved, and the moisture absorption expansion rate and the thermal expansion coefficient of the composite material structure are reduced; the resin layer comprises a plurality of appearance effect areas with different appearance effects, so that the composite material structure has rich and high-quality appearance effects, the designability of the appearance effects of the composite material structure is improved, and the requirements of consumers on the rich and high-quality appearance effects are further met.

Description

Composite material structure, shell, decoration and electronic equipment

Technical Field

The present utility model relates to the field of composite materials, and more particularly, to a composite material structure, a housing and a decoration using the composite material structure, and an electronic device using the housing and the decoration.

Background

Resin-based composite materials are generally formed by compounding a resin matrix with a reinforcing material (such as a fiber reinforced material) in a single color, and have higher strength and modulus than pure plastic materials, so that parts made of the resin-based composite materials can be lighter and thinner, and the resin-based composite materials are increasingly applied to the field of consumer products (such as the field of consumer electronics products, such as mobile phones, tablet computers, computers and the like). However, the existing resin-based composite material has very limited appearance decoration technology, low designability and insufficient appearance effect, and is difficult to meet the pursuit of consumers on the appearance high quality of products.

Disclosure of Invention

In view of this, in order to solve at least one of the above drawbacks, embodiments of the present utility model provide a composite material structure having excellent mechanical properties, a low thermal expansion coefficient and a low hygroscopic expansion rate, and a strong design property and a rich and various appearance effects.

In addition, the embodiment of the utility model also provides a shell or a decoration made of the composite material structure and electronic equipment using the shell and the decoration.

According to a first aspect of the embodiment of the utility model, there is provided a composite material structure, the composite material structure comprises at least one resin layer and at least one reinforcing material layer which are stacked, at least the resin layer positioned on the outermost layer of the composite material comprises a plurality of appearance effect areas which are arranged along the horizontal direction, and the plurality of appearance effect areas have at least two different appearance effects. The composite material structure can be in various forms such as a film material, a sheet material, a plate material and the like.

The reinforcing material layer is arranged on the resin layer, plays a role in reinforcing, is beneficial to improving the strength and modulus of the composite material structure, and reduces the moisture absorption expansion rate and the thermal expansion coefficient of the composite material structure; the resin layer comprises a plurality of appearance effect areas with different appearance effects (such as different colors, gloss, transparency, roughness, touch feeling and the like), so that the composite material structure has rich and high-quality appearance effects, the designability of the appearance effects of the composite material structure is improved, and the requirements of consumers on the rich and high-quality appearance effects are further met.

With reference to the first aspect, in some possible embodiments, the plurality of appearance effect areas may be regularly arranged, and an arrangement manner of the appearance effect areas may be designed according to an actual appearance requirement of a product (especially, a product with a specific pattern on appearance), so as to further improve designability and controllability of an appearance effect, and meanwhile, improve repeatability of an appearance effect of a composite structure. It will be appreciated that the plurality of appearance effect areas may also be irregularly arranged. In some possible embodiments, the outermost resin layer may also have a textured microstructure, such as a concave-convex textured structure, and by superimposing the outer textured microstructure with multiple appearance effect regions, a richer appearance visual and tactile effect may be achieved, further improving the designability of the composite structure appearance. In some possible embodiments, the outer surface of the resin layer located on the outermost layer may be a curved surface, giving the appearance of a curved surface of the composite material structure, and a 2.5D or 3D curved visual effect may be presented, so that the appearance effect of the composite material structure is further enriched.

With reference to the first aspect, in some possible embodiments, the resin layer includes a plurality of resin blocks spliced together, and each of the resin blocks corresponds to one of the appearance effect regions.

By means of stitching, the risk of mutual penetration and diffusion of appearance effects (e.g. colors) between adjacent appearance effect areas can be reduced, thereby ensuring that there is a desired boundary between two adjacent resin blocks having different appearance effects. In addition, the splicing process is simple, the cost is low, the design designability of the composite material structure is stronger, and the appearance effect is richer. In addition, the mode of splicing a plurality of resin blocks is beneficial to realizing the regular arrangement design of the appearance effect areas.

With reference to the first aspect, in some possible embodiments, the composite structure includes a plurality of the resin layers and a plurality of the reinforcement material layers alternately stacked.

Through setting up multilayer resin layer and multilayer combined material structure to laminate multilayer resin layer and multilayer combined material structure in turn, can improve the cohesion between combined material structure and the resin layer, be favorable to further improving the mechanical properties of combined material structure, reduce the hygroscopic expansion rate and the coefficient of thermal expansion of material simultaneously.

With reference to the first aspect, in some possible embodiments, the composite structural layer includes two outermost layers, and the two outermost layers are both the resin layers.

After the two outermost layers of the composite material structure are alternately stacked, the multi-layer reinforcing material layer is positioned in the middle, so that the reinforcing effect of the single-layer reinforcing material layer can be further enhanced.

With reference to the first aspect, in some possible embodiments, a thickness of the resin layer located at least one of the two outermost layers is smaller than a thickness of the resin layer located at the inner layer.

The thickness of the resin layer positioned on the outermost layer in the composite material structure is set thinner, so that the texture of the inner reinforcing material layer is clearer, even the outer surface of the composite material structure is enabled to have texture touch effect, the inner reinforcing material texture is overlapped with a plurality of appearance effect areas of the outermost layer resin layer, and the appearance effect of the composite material structure is further enriched.

With reference to the first aspect, in some possible embodiments, a transition layer is provided between each of the resin layers and the reinforcement material layer adjacent thereto, the transition layer being formed by the resin layers extending into the reinforcement material layer.

The resin layers which are arranged in a laminated way extend into the reinforcing material layers to form a transition layer, so that the bonding force between the resin layers and the reinforcing material layers is further improved, the layering phenomenon is reduced, the mechanical property of the composite material structure is further improved, and the thermal expansion coefficient of the composite material structure is reduced.

With reference to the first aspect, in some possible embodiments, the material of the resin layer may be acetate, nylon, polyurethane, polycarbonate, polymethyl methacrylate, polyethylene terephthalate, epoxy resin, acrylic resin, phenolic resin, or silicone resin, or the like, and, of course, in specific implementation, the resin layer may also be a mixture of at least two of the above materials, which is not limited herein.

With reference to the first aspect, in some possible embodiments, the reinforcing material layer may be a fiber reinforcing material layer, and the fiber reinforcing material layer may be a braid, a non-woven fabric, a unidirectional fabric, or the like. The fibers may be glass fibers, basalt fibers, carbon fibers, aramid fibers, ceramic fibers, polyethylene terephthalate fibers, ultra-high molecular weight polyethylene fibers, poly-p-phenylene benzobisoxazole fibers, polyimide fibers, polypropylene fibers, hemp fibers, or bamboo fibers, for example, and the reinforcing material layer may be a mixture of at least two of the above fiber materials, and is not particularly limited herein. The shape of the fiber is exemplified by powder, block, microsphere (e.g., solid microsphere or hollow microsphere), or bar-like structure having a certain length-to-diameter ratio (e.g., solid bar, hollow bar, or filament), etc., however, the shape of the fiber may be a mixture of the above shapes in specific implementation, and is not particularly limited herein.

A second aspect of the embodiments of the present utility model provides a housing made of the composite structure of the first aspect of the embodiments of the present utility model.

The shell made of the composite material structure has excellent mechanical performance, lower thermal expansion coefficient and hygroscopic expansion rate, and stronger shell designability and rich appearance decoration effects.

A third aspect of the embodiments of the present utility model provides a decorative piece made of the composite material structure according to the first aspect of the embodiments of the present utility model.

The decoration piece made of the composite material structure has stronger shell designability and rich appearance decoration effect. It will be appreciated that the decorative piece has a low thermal expansion coefficient and a low hygroscopic expansion rate, but has low requirements on mechanical properties, and can be adjusted by adopting reinforcing material layers with different numbers or different materials according to practical requirements.

A fourth aspect of the embodiments of the present utility model provides an apparatus comprising a housing according to the second aspect of the embodiments of the present utility model, and/or a trim piece according to the third aspect of the embodiments of the present utility model.

With reference to the fourth aspect, in some possible embodiments, the device is an electronic device, and the device further includes a camera module that is accommodated in the housing, where the decorative piece is disposed on the camera module.

Drawings

Fig. 1 is a schematic structural diagram of a composite structure according to an embodiment of the present utility model.

Fig. 2 is a top view of the resin layer of fig. 1.

Fig. 3 is a top view of a resin layer provided in another embodiment of the present utility model.

Fig. 4 is a top view of a resin layer provided in accordance with yet another embodiment of the present utility model.

Fig. 5 is a schematic structural view of a composite structure according to another embodiment of the present utility model.

Fig. 6 is a schematic structural view of a composite structure according to another embodiment of the present utility model.

Fig. 7 is a schematic structural view of the reinforcing material of fig. 1.

Fig. 8 is a schematic structural view of a composite structure according to another embodiment of the present utility model.

Fig. 9 is a schematic structural view of a composite structure according to another embodiment of the present utility model.

Fig. 10 is a schematic structural view of a composite structure according to another embodiment of the present utility model.

Fig. 11 is a schematic structural view of a housing according to an embodiment of the present utility model.

Fig. 12 is a schematic structural view of a decoration according to an embodiment of the present utility model.

Fig. 13 is a schematic structural view of an apparatus according to an embodiment of the present utility model.

Description of the main reference signs

Composite structure 100

Resin layer 1

Resin block 11

Appearance effect area A

Pattern area A1

Non-pattern area A2

Reinforcing material layer 2

Fiber 21

Texture microstructure 3

Curved surface structure 4

Transition layer 5

Hardening coating 6

Housing 200

Decoration 300

Apparatus 400

Display 401

Camera module 402

Horizontal direction a

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be presented in connection with a preferred embodiment, it is not intended that the utility model be limited to this embodiment. Rather, the purpose of the present application is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

Hereinafter, the terms "first," "second," and the like, if used, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. The terms of orientation such as "upper", "lower", "left", "right", etc. are defined with respect to the orientation of the components shown in the drawings as they are schematically disposed, and it should be understood that these directional terms are relative terms that are used for descriptive and clarity with respect to each other and that may be varied accordingly with respect to the orientation of the components shown in the drawings.

In the present utility model, the term "coupled" should be interpreted broadly, unless explicitly stated or defined otherwise, as such, as the term "coupled" may be fixedly coupled, detachably coupled, or as a single piece; can be directly connected or indirectly connected through an intermediate medium. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the following detailed description of the embodiments in conjunction with the drawings, which are not to scale in general, the drawings illustrating the partial structure of the device are not to scale and are merely examples, which should not limit the scope of the utility model.

The embodiment of the utility model provides a composite material structure which has excellent mechanical properties, lower thermal expansion coefficient and hygroscopic expansion rate, stronger appearance designability and rich and various appearance effects. The composite material structure can be used as a shell or a decoration of consumer equipment, so that the product has excellent mechanical property, lower thermal expansion coefficient and hygroscopic expansion rate, and can realize colorful visual appearance and touch effect of the appearance surface of the product. The device includes, but is not limited to, mobile phones, tablets, computers and other terminal electronics, and the composite structure can also be applied to fields other than consumer electronics, such as automotive interiors, home appliances, light fixtures, furniture, and outer shells or trim parts of artwork and the like.

The composite material structure provided by the embodiment of the utility model can be in various forms such as a film, a sheet, a plate and the like, is not particularly limited, and is specifically described by taking the sheet as an example and combining the drawings in the embodiment of the utility model.

Referring to fig. 1 and 2, a composite structure 100 provided in the embodiment of the utility model includes at least one resin layer 1 and at least one reinforcing material layer 2 stacked together, at least the resin layer 1 located at the outermost layer of the composite structure 100 includes a plurality of appearance effect areas a arranged along a horizontal direction a, and the plurality of appearance effect areas a have at least two different appearance effects, and the horizontal direction a is another direction perpendicular to the stacking direction. The different appearance effects may be different colors, gloss, transparency, roughness, texture touch, and the like, that is, the appearance effect of the present embodiment is a generic term of a visual effect and a haptic effect.

The composite structure 100 includes two outermost layers in the lamination direction (i.e., thickness direction), wherein at least one of the two outermost layers is the resin layer 1, and the resin layer 1 located at the outermost layer is provided to have a plurality of appearance effect areas a, a rich appearance effect of the composite structure 100 can be achieved. It will be appreciated that the resin layer 1 located inside the composite structure 100 may also have a plurality of appearance effect areas a, for example, when the reinforcing material layer 2 is a transparent material layer, the resin layer 1 of the inner layer may be designed to have a plurality of appearance effect areas a, so as to achieve superposition of internal and external visual effects to achieve a richer appearance effect.

As shown in fig. 1, the resin layer 1 includes a plurality of resin blocks 11 spliced together, each resin block 11 corresponding to the aforementioned one appearance effect region a, that is, the plurality of resin blocks 11 have at least two different appearance effects. By means of stitching, the risk of interpenetration diffusion between appearance effects (e.g. colors) between adjacent appearance effect areas a can be reduced, thereby ensuring that there is a desired boundary between two adjacent resin blocks having different appearance effects. Moreover, the splicing process is simple, the cost is low, the appearance designability of the composite material structure 100 is stronger, and the appearance effect is richer.

As shown in fig. 2, the appearance effect areas a may be regularly arranged, and the arrangement manner of the appearance effect areas a may be designed according to the actual appearance requirement of the product, so as to further improve designability and controllability of the visual effect, and improve repeatability of the appearance effect of the composite structure. By regularly combining (e.g., in a matrix arrangement) a plurality of appearance effect areas a, particularly suitable for products having a specific pattern in appearance, as shown in fig. 3, the appearance effect areas a of the resin layer 1 may be divided into pattern areas A1 and non-pattern areas A2, wherein the pattern areas A1 may be combined by a plurality of resin blocks 11, and it is understood that the non-pattern areas A2 may also have specific visual and tactile effects and be composed of non-pattern area units. It is also understood that the plurality of appearance effect areas a may be irregularly arranged as shown in fig. 4. In addition, the above-mentioned manner of splicing the plurality of resin blocks 11 is beneficial to realizing the regular arrangement design of the plurality of appearance effect areas a in the present embodiment.

In some embodiments, the material of the resin layer 1 may include, but is not limited to, acetate, nylon, polyurethane, polycarbonate, polymethyl methacrylate, polyethylene terephthalate, epoxy resin, acrylic resin, phenolic resin, or silicone resin, etc., and, of course, in specific implementation, the resin layer 1 may be a mixture of at least two materials, and according to the requirements of the actual product on each performance, what material is specifically selected to prepare the resin layer 1 is not limited herein. In addition, the size of the interpenetration capacity of the different appearance effect areas a is also considered in the selection process, so that the boundaries of the different appearance effect areas a are clear or properly blurred. If this is achieved by adjusting the type of resin material, the molding process of the resin layer 1, etc. in order to make the boundary between the different appearance effect regions a clearer, the solvent content in the material forming the resin layer 1 can be reduced, for example, thereby reducing the risk of interdiffusion and permeation between the different regions. If the transition of the two different appearance effect regions a is made more natural in order to have a suitably blurred boundary between the different appearance effect regions a, the solvent content in the material forming the resin layer 1 may be suitably increased by adjusting the type of the resin material, the resin material molding process, and the molding process of the resin layer 1, for example, so that the capability of interdiffusion penetration between the different regions is suitably increased.

As shown in fig. 5, the resin layer 1 located on the outermost layer may further have a micro-texture microstructure 3, such as a concave-convex texture structure, so as to give a tactile effect to the appearance surface of the composite structure 100, and meanwhile, by overlapping the outer layer texture microstructure 3 with a plurality of appearance effect areas a and textures of the inner reinforcing material layer 2, a richer appearance visual and tactile effect can be achieved, and the designability of the appearance of the composite structure 100 is further improved.

As shown in fig. 6, the outer surface of the resin layer 1 located at the outermost layer of the composite structure 100 has a curved surface structure 4, and by designing the outer surface of the composite structure 100 into a macroscopic curved surface structure, the appearance of the curved surface of the composite structure 100 is given, and a 2.5D or 3D curved surface visual effect can be presented, so that the appearance effect of the composite structure 100 is further enriched. In addition, by superposing the curved surface structure 4 with the plurality of appearance effect areas a and the reinforcing material layer 2, the appearance effect of the composite material structure 100 can be richer and the designability can be stronger.

Referring to fig. 7, the reinforcing material layer 2 may be a fiber reinforcing material layer, for example, a fiber sheet may be formed by fiber braiding, and then laminated with the resin layer 1 to form a composite material structure 100. It will be appreciated that the reinforcing material layer 2 may also be a reinforcing sheet of other non-fibrous resin material with improved mechanical properties.

In some embodiments, the fibers 21 may include, but are not limited to, inorganic and organic fibers, such as glass fibers, basalt fibers, carbon fibers, aramid fibers, ceramic fibers, polyethylene terephthalate fibers, ultra-high molecular weight polyethylene fibers, poly-p-Phenylene Benzobisoxazole (PBO), polypropylene fibers, polyimide fibers, and the like, and may also include natural fibers such as hemp fibers, bamboo fibers, and cotton fibers. Of course, in the specific implementation, the reinforcing material layer 2 may also be a mixture of at least two of the above fiber materials, which is not particularly limited herein. The fiber reinforcement layer may be a braid formed by knitting or weaving, may be a nonwoven fabric, or may be a unidirectional fabric composed of non-woven unidirectional fibers, and the like, and is not particularly limited herein.

In some embodiments, the shape of the fiber 21 may include, but is not limited to, powder, block, microsphere (e.g., solid microsphere or hollow microsphere), or bar-like structure having an aspect ratio (e.g., solid bar, hollow bar, or filament), etc., although the shape of the fiber 21 may be a mixture of the above shapes in specific implementations, and is not limited thereto. The hollow fiber 21 can satisfy the reinforcement of the composite structure 100 and can be lightweight.

Referring to fig. 8 and 9, a transition layer 5 is further disposed between each of the resin layers 1 and the reinforcing material layer 2 adjacent thereto, and the transition layer 5 is formed by extending the resin layers 1 into the reinforcing material layer 2. The resin layer 1 which is arranged in a laminated way stretches into the reinforced material layer 2 to form the transition layer 5, which is favorable for further improving the binding force between the resin layer 1 and the reinforced material layer 2, reducing layering phenomenon, further improving the mechanical property of the composite material structure 100 and simultaneously reducing the thermal expansion coefficient of the composite material structure 100. Illustratively, as shown in fig. 8 and 9, the reinforcing material layer 2 is a woven material sheet formed by weaving fibers, and the woven material sheet has a large number of woven pores, and when the woven material sheet is pressed with the resin layer 1, softened resin infiltrates into the woven pores to form the transition layer 5, so that the bonding force between the resin layer 1 and the reinforcing material layer 2 is stronger.

Referring to fig. 10, the composite structure 100 includes N resin layers 1 and M reinforcing material layers 2 stacked alternately, where N and M are integers greater than or equal to 2. By arranging the plurality of resin layers 1 and the plurality of reinforcing material layers 2 and alternately stacking the resin layers 1 and the reinforcing material layers 2, both sides of the plurality of reinforcing material layers 2 positioned in the middle can be fully soaked by the resin layers 1, so that the bonding force between the reinforcing material layers 2 and the resin layers 1 is improved, the mechanical property of the composite material structure 100 is improved, and the moisture absorption expansion rate and the thermal expansion coefficient of the composite material structure 100 are reduced.

In some embodiments, when the plurality of resin layers 1 and the plurality of reinforcing material layers 2 are alternately stacked, the resin layer 1 positioned at the inner layer may employ a resin layer not including a plurality of appearance effect regions a, mainly functioning to bond the plurality of reinforcing material layers 2. It will be appreciated that in other embodiments, when the plurality of resin layers 1 and the plurality of reinforcing material layers 2 are alternately stacked, the resin layers 1 of the inner layer and the outer layer may be each provided in the form of a plurality of appearance effect areas a, and the reinforcing material layers 2 may be made of transparent materials, so that the appearance effect areas a of the inner layer and the appearance effect areas a of the outer layer are stacked, and a richer appearance effect may be achieved.

In some embodiments, after the two outermost layers of the composite structure 100 are stacked alternately, the resin layers 1 are both the two outermost layers, that is, the number of the resin layers 1 is 1 more than the number of the reinforcing material layers 2, and the reinforcing effect of the single reinforcing material layer 2 can be further enhanced by the plurality of reinforcing material layers 2. Moreover, the two opposite surfaces of each reinforcing material layer 2 are combined with one resin layer 1, so that the combination strength of each reinforcing material layer 2 and the resin layer 1 can be further improved, and the strength and delamination resistance of the whole composite structure 100 can be further improved. In addition, the two outermost layers of the composite structure 100 are both the resin layers 1, so that the composite structure 100 with decorative effects on both sides can be formed, and the design and the richness of the appearance of the composite structure 100 can be further improved.

In some embodiments, when the plurality of resin layers 1 and the plurality of reinforcement material layers 2 are alternately stacked, the thickness of the resin layer 1 located at the outermost layer is smaller than the thickness of the resin layer 1 located at the inner layer (and the inner layer of the composite structure 100). By setting the thickness of the resin layer 1 located at the outermost layer in the composite structure 100 thinner, the texture of the inner reinforcing material layer 2 can be made clearer, and even the outer surface of the composite structure 100 can be provided with texture haptic effects, the inner reinforcing material texture is overlapped with a plurality of appearance effect areas a of the outermost resin layer 1, and the appearance visual and haptic effects of the composite structure 100 are further enriched. It will be appreciated that in other embodiments, the resin layer 1 of the inner layer may also be provided with a thinner thickness, which is advantageous in reducing the thickness of the overall composite structure 100.

Referring again to fig. 1, the composite structure 100 may further include a transparent hardened coating 6, and the hardened coating 6 may be used to enhance the abrasion resistance, corrosion resistance, etc. of the surface of the composite structure 100.

According to the embodiment of the utility model, the reinforcing material layer 2 and the resin layer 1 are laminated, so that the reinforcing material layer 2 plays a role in reinforcing, the mechanical properties such as strength and modulus of the composite material structure 100 are improved, and the moisture absorption expansion rate and the thermal expansion coefficient of the composite material structure 100 are reduced; the resin layer 1 includes a plurality of appearance effect areas a having different appearance effects (e.g., different colors, gloss, transparency, roughness, touch feeling, etc.), so that the composite structure 100 can have abundant and high-quality visual and tactile effects, and the designability of the appearance effect of the composite structure 100 is improved, thereby meeting the requirements of consumers for the abundant and high-quality appearance effects.

Referring to fig. 11, and referring to fig. 1 in combination, a housing 200 is provided according to an embodiment of the present utility model, and the housing 200 is made of the composite material structure 100 described above. The shell 200 can be used as a shell of a consumer product, and the composite material structure 100 can be prepared by adopting the reinforcing material layer 2 with a strong reinforcing effect and the resin layer 1 with good mechanical property, so that the shell 200 has good mechanical property, low thermal expansion coefficient and moisture absorption expansion rate, the durability of the shell 200 is improved, and meanwhile, the shell has strong shell designability and rich appearance decoration effects so as to meet the pursuit of higher and higher appearance effects of consumers.

Referring to fig. 12 in combination with fig. 1, a decoration 300 is provided according to an embodiment of the present utility model, where the decoration 300 is made of the composite material structure 100 as described above. The decoration 300 made of the composite material structure 100 has excellent mechanical properties, low thermal expansion coefficient and hygroscopic expansion rate, and strong appearance designability and rich appearance decoration effects.

It will be appreciated that the composite structure 100 may be designed according to specific requirements of the trim 300 for mechanical properties, coefficient of thermal expansion, and coefficient of hygroscopic expansion, etc., and that the typical trim 300 may not have high requirements for the above properties, and may suitably reduce the reinforcement.

Referring to fig. 13, the embodiment of the present utility model further provides an electronic device 400, where the electronic device 400 includes the housing 200, and the electronic device 400 may be a consumer electronic terminal device such as a mobile phone, a tablet, a computer, or an automotive interior, a lamp, a household appliance, an artwork, or the like.

In some embodiments, the electronic device 400 may be a mobile phone, where the electronic device 400 further includes a functional element accommodated in the housing 200 and a display 401 located on a side of the functional element facing away from the housing 200, and the functional element may be a functional element commonly used in a mobile phone, such as a motherboard, a camera, a microphone, and the like.

In some embodiments, the electronic device 400 further includes a decoration 300 disposed on the camera module 402, where the decoration 300 may improve the aesthetic appearance of the camera module 402.

It should be noted that the above is only a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are covered by the scope of the present utility model; the embodiments of the present utility model and features in the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (17)

1. The composite material structure is characterized by comprising at least one resin layer and at least one reinforcing material layer which are overlapped, wherein at least the resin layer positioned on the outermost layer of the composite material structure comprises a plurality of appearance effect areas which are distributed along the horizontal direction, and the appearance effect areas have at least two different appearance effects.

2. The composite structure of claim 1 wherein said resin layer comprises a plurality of resin blocks spliced together, each of said resin blocks corresponding to one of said appearance effect areas.

3. The composite structure of claim 1 wherein the plurality of appearance effect zones are regularly arranged.

4. The composite structure of claim 1 wherein the outermost resin layer has a textured microstructure.

5. The composite structure of claim 1 wherein the outer surface of the outermost resin layer is curved.

6. A composite structure according to any one of claims 1 to 5, wherein each of the resin layers and the reinforcing material layer adjacent thereto has a transition layer therebetween, the transition layer being formed by the resin layer extending into the reinforcing material layer.

7. The composite structure of claim 6, wherein the composite structure comprises a plurality of the resin layers and a plurality of the reinforcement layers alternately stacked.

8. The composite structure of claim 7, wherein the composite structure comprises two outermost layers, both of which are the resin layers.

9. The composite structure of claim 8 wherein the thickness of the resin layer at least one of the two outermost layers is less than the thickness of the resin layer at the inner layer.

10. The composite structure of claim 1 wherein the resin layer is formed from acetate, nylon, polyurethane, polycarbonate, polymethyl methacrylate, polyethylene terephthalate, epoxy, acrylic, phenolic or silicone.

11. The composite structure of claim 1 wherein the reinforcing material layer is a fibrous reinforcing material layer and the fibers are glass fibers, basalt fibers, carbon fibers, aramid fibers, ceramic fibers, polyethylene terephthalate fibers, ultra high molecular weight polyethylene fibers, poly-p-phenylene benzobisoxazole fibers, polyimide fibers, polypropylene fibers, hemp fibers, or bamboo fibers.

12. The composite structure of claim 11, wherein the fibers are in the form of powder, blocks, microspheres, or strips having an aspect ratio.

13. The composite structure of claim 11, wherein the layer of fibrous reinforcement is a knit, a nonwoven, or a unidirectional fabric.

14. A housing, characterized in that it is made of a composite structure according to any one of claims 1 to 13.

15. A decorative piece, characterized in that it is made of a composite structure according to any one of claims 1 to 13.

16. An electronic device comprising the housing of claim 14, and/or the decorative piece of claim 15.

17. The device of claim 16, further comprising a camera module housed within the housing, the camera module having the decorative piece disposed thereon.