TWM616124U - Housing structure - Google Patents

Abstract

A shell structure includes a base and a membrane material. The base has a curved part. The film material includes an adhesive layer, a substrate layer and a decoration part stacked in sequence. The film is adhered to the base with the curved part through the adhesive layer. The radius of curvature of the curved portion is less than 2.5 mm.

Description

Shell structure

The present invention relates to a shell structure, in particular to a shell structure in which a film material is attached to the bent part.

On the shell structure of electronic products or beauty products, most of them are designed with beautiful graphics in order to gain the favor of consumers. Generally, a decorative film with a graphic pattern is attached to a base to form the required shell structure.

The base often has a curved part to match the appearance of electronic products or beauty products. However, the existing technology is still unable to attach a decorative film with a pattern to the curved part with a smaller radius of curvature. The appearance design of the shell structure of the curved part with a smaller radius is limited.

The present invention provides a shell structure, whereby a film material is attached to a base of a curved portion with a smaller radius of curvature, so as to meet the appearance requirements of the shell structure.

The casing structure disclosed in an embodiment of the present invention includes a base and a membrane material. The base has a curved part. The film material includes an adhesive layer, a substrate layer and a decoration part stacked in sequence. The film is adhered to the base with the curved part through the adhesive layer. The radius of curvature of the curved portion is less than 2.5 mm.

According to the shell structure disclosed in the above embodiment, the film material can be attached to the base of the curved portion with a radius of curvature of less than 2.5 mm, so as to meet the appearance requirements of the shell structure.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principles of the present invention and provide a further explanation of the scope of the patent application of the present invention.

The following will describe an embodiment of the present invention, please refer to Figs. 1 to 2. Fig. 1 is a three-dimensional schematic diagram of a housing structure drawn according to an embodiment of the present invention, and Fig. 2 is a diagram of Fig. 1 Side sectional view of the shell structure.

In this embodiment, the housing structure 1a includes a base 10a and a membrane 20a. In this embodiment and some embodiments of the present invention, the base 10a may be a semi-finished mobile phone shell. The base 10a can be made of plastic or glass, and the plastic can be, for example, polycarbonate (PC) or a composite of polycarbonate and poly(methyl methacrylate) (PMMA). The base 10a may include a flat portion 110a, a curved portion 120a, and a side wall portion 130a connected in sequence. The flat portion 110a may have an opening OP to correspond to a lens of a mobile phone (not shown separately). However, the present invention is not limited to this. In some embodiments, the bent portion or the side wall portion may also have an opening to correspond to the connection hole of the mobile phone. In some embodiments, the base may not have openings. In addition, in this embodiment, a semi-finished mobile phone shell is used as an exemplary description of the base 10a, but the present invention is not limited to this. In some embodiments, the base may also be a semi-finished product of the cosmetic outer box, and the semi-finished product of the cosmetic outer box may not have an opening.

In this embodiment, the film material 20a includes an adhesive layer 210a, a substrate layer 220a, and a decoration part 230a stacked in sequence. In addition, the film material 20a has, for example, an opening OP to correspond to the opening OP of the flat portion 110a. The film material 20a is adhered to the base 10a having the bent portion 120a through the adhesive layer 210a. Specifically, in this embodiment and some embodiments of the present invention, the material of the adhesive layer 210a can be Optically Clear Adhesive (OCA), Hot Melt Adhesive (HMA) or Pressure Sensitive Adhesive (Pressure Clear Adhesive, OCA). Sensitive Adhesive, PSA). The film 20a can be adhered to the flat portion 110a, the curved portion 120a and the side wall portion 130a of the base 10a through the adhesive layer 210a, and the adhesion force is more than 20 Newtons per inch (N/in).

In addition, the material of the substrate layer 220a can be polypropylene (PP), polyethylene terephthalate (PET), polycarbonate, thermoplastic polyurethane (Thermoplastic Polyurethane, TPU), polyvinyl alcohol ( Poly (vinyl alcohol), PVA) or thermoplastic polyolefin (Thermoplastic Polyolefin, TPO). The decoration part 230a may be a colored layer, and the material of the colored layer may be polyester (Polyester) or polyurethane (Polyurethane, PU) with high inking property, and the colored layer can be colored through the dyeing process, so that the colored layer can have a single color. Color, gradient color, text or pattern.

If the base 10a is made of a translucent material (such as the aforementioned PC, PC and PMMA composite or glass), the adhesive layer 210a and the substrate layer 220a should also be made of translucent material (such as the aforementioned OCA, HMA or The adhesive layer 210a made of PSA and the substrate 220a made of PET, PC, TPU, PVA or TPO); wherein the light transmittance of the substrate layer 220a can reach more than 90%, and the haze of the substrate layer 220a can be Below 3%. In addition, the base 10a can be used as the side of the housing structure 1a away from the internal parts of the mobile phone (that is, the outer surface of the base 10a is used as the exterior surface of the mobile phone), and the decorative portion 230a can be used as the side of the housing structure 1a close to the internal parts of the mobile phone ( That is, the decoration part 230a is protected inside the mobile phone). When the housing structure 1a is installed, the decorative portion 230a can be observed from the side (ie, the outside) of the housing structure 1a away from the internal parts of the mobile phone.

In this embodiment, the radius of curvature of the curved portion 120a is less than 2.5 mm. In addition, the film material 20a can be attached to the base 10a of the curved portion 120a with a radius of curvature of less than 2.5 mm, so as to meet the appearance requirements of the housing structure 1a. In some embodiments, the radius of curvature of the curved portion may also be 2 mm or less. In some embodiments, the radius of curvature of the curved portion may also be 1.3 mm.

Hereinafter, another embodiment of the present invention will be described. Please refer to FIG. 3, which is a side cross-sectional view of a housing structure according to another embodiment of the present invention. The following only describes the differences between this embodiment and the embodiment in FIG. 2, and the remaining same or similar contents will be omitted.

In this embodiment and some embodiments of the present invention, a housing structure 1b is provided. The housing structure 1b includes a base 10b and a membrane 20b. The base 10b includes a flat portion 110b, a curved portion 120b, and a side wall portion 130b connected in sequence. The flat portion 110b, the curved portion 120b, and the side wall portion 130b may each include a main body 111b, 121b, 131b and a coating layer 112b, 122b, 132b. The structure and relative positional relationship of the main body 111b, 121b, 131b of the flat portion 110b, the curved portion 120b and the side wall portion 130b are similar to the structure of the flat portion 110a, the curved portion 120a and the side wall portion 130a of the embodiment of FIG. The relative position relationship and other characteristics are not repeated here.

The coating layers 112b, 122b, and 132b can be respectively formed on the main body portions 111b, 121b, and 131b through a coating process. The material of the coating layers 112b, 122b, 132b can be silicon dioxide (SiO ₂ ) or aluminum oxide (Al ₂ O ₃ ) with metallic luster.

The film 20b includes an adhesive layer 210b, a substrate layer 220b, and a decoration part 230b stacked in sequence. The film material 20b is adhered to the base 10b having the bent portion 120b through the adhesive layer 210b, so that the coating layers 112b, 122b, 132b are disposed between the main body portions 111b, 121b, 131b and the adhesive layer 210b. The other adhesive layer 210b, the base material layer 220b and the decoration part 230b have the structure and relative positional relationship and other characteristics similar to the adhesive layer 210a, the base material layer 220a and the decoration part 230a in the embodiment of FIG. , So I won't repeat it.

When the housing structure 1b is installed, the decorative portion 230b and the coating layers 112b, 122b, 132b can be observed from the side of the housing structure 1b away from the internal parts of the mobile phone (ie, the outside), which provides the appearance requirements and requirements of the housing structure 1b of the mobile phone. The visual effect of metallic luster texture.

Hereinafter, another embodiment of the present invention will be described. Please refer to FIG. 4, which is a side cross-sectional view of a housing structure according to another embodiment of the present invention. The following only describes the differences between this embodiment and the embodiment in FIG. 2, and the remaining same or similar contents will be omitted.

In this embodiment and some embodiments of the present invention, a housing structure 1c is provided. The housing structure 1c includes a base 10c and a membrane 20c. The base 10c includes a flat portion 110c, a curved portion 120c, and a side wall portion 130c connected in sequence. The features such as the structure and relative positional relationship of the flat portion 110c, the curved portion 120c and the side wall portion 130c are similar to the features of the flat portion 110a, the curved portion 120a and the side wall portion 130a in the embodiment of FIG. Go into details again.

The film 20c includes an adhesive layer 210c, a substrate layer 220c, and a decoration part 230c stacked in sequence. The characteristics of the structure and relative position relationship of the adhesive layer 210c and the base layer 220c are similar to the characteristics of the structure and relative position relationship of the adhesive layer 210a and the base layer 220a in the embodiment of FIG.

The decoration part 230c may include a texture layer 231c, a plating layer 232c, and a coloring layer 233c stacked in sequence. The texture layer 231c is disposed on the base layer 220c. The texture layer 231c can be made of Acrylate Resin, Polyester Resin, Urethane Resin, Epoxy Resin or Silicone Resin, and The texture layer 231c can have uneven texture on its surface through an embossing process.

The coating layer 232c can be formed on the texture layer 231c through a coating process. The material of the coating layer 232c can be silicon dioxide or aluminum oxide with metallic luster.

The material of the colored layer 233c can be polyester or polyurethane with high ink repellency, and the colored layer 233c can be colored through a dyeing process, so that the colored layer 233c can have a single color, a gradient color, a text or a pattern.

When the housing structure 1c is installed, the texture layer 231c, the coating layer 232c and the colored layer 233c can be observed from the side of the housing structure 1c away from the internal parts of the mobile phone (ie, the outside), which provides the appearance requirements and requirements of the housing structure 1c of the mobile phone. The metallic luster texture and the visual effect of the texture texture such as hair.

According to the housing structure of the above embodiment, the film material can be attached to the base of the curved portion with a radius of curvature of less than 2.5 mm, so as to meet the appearance requirements of the housing structure.

Although the present invention is disclosed in the foregoing embodiments as above, it is not intended to limit the present invention. Anyone who is familiar with similar skills can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection for new models shall be determined by the scope of patent applications attached to this specification.

1a, 1b, 1c: shell structure 10a, 10b, 10c: base 110a, 110b, 110c: flat part 120a, 120b, 120c: curved part 130a, 130b, 130c: side wall 111b, 121b, 131b: main body 112b, 122b, 132b: Coating layer 20a, 20b, 20c: membrane material 210a, 210b, 210c: Adhesive layer 220a, 220b, 220c: substrate layer 230a, 230b, 230c: Decoration Department 231c: texture layer 232c: Coating layer 233c: colored layer OP: Open hole

FIG. 1 is a three-dimensional schematic diagram of a housing structure according to an embodiment of the present invention. FIG. 2 is a side cross-sectional view of the housing structure of FIG. 1. FIG. FIG. 3 is a side cross-sectional view of the housing structure according to another embodiment of the present invention. FIG. 4 is a side cross-sectional view of a housing structure according to another embodiment of the present invention.

1a: Shell structure

10a: Pedestal

110a: flat part

120a: curved part

130a: side wall

20a: Membrane

210a: Adhesive layer

220a: substrate layer

230a: Decoration Department

OP: Open hole

Claims (7)

A shell structure includes: a base with a curved portion; and a film material including an adhesive layer, a base material layer and a decoration part stacked in sequence, wherein the film material is attached to the adhesive layer through the adhesive layer The base having the curved portion; wherein the radius of curvature of the curved portion is less than 2.5 mm. The housing structure according to claim 1, wherein the bent portion includes a main body and a coating layer, and the coating layer is disposed between the main body and the adhesive layer. The casing structure according to claim 1, wherein the decoration part includes a texture layer, a coating layer and a color layer stacked in sequence. The shell structure according to claim 3, wherein the colored layer has a single color, a gradient color, a text or a pattern. The housing structure according to claim 1, wherein the base, the adhesive layer and the substrate layer each have light transmittance. The housing structure according to claim 1, wherein the radius of curvature of the curved portion is 1.3 to 2.3 mm. The housing structure according to claim 1, wherein the radius of curvature of the curved portion is 1.3 mm.

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