CN216491559U - Shell structure and electronic equipment - Google Patents

Abstract

The utility model relates to a shell structure and electronic equipment, shell structure includes body and rete subassembly, the body includes internal surface and surface, the rete subassembly is laminated in the internal surface, the surface of body has the frosting layer, the frosting layer includes a plurality of anomalous crystal structure, wherein, a plurality of anomalous crystal structure construct the surface of body into haze surface, the haze surface makes shell structure possess the appearance effect of thick well fog, microscopic observation is last, the crystal structure roughness is high, the grain diameter span of crystal structure is big, macroscopic observation is last, anomalous crystal structure is inhomogeneous, make its surperficial roughness bigger, the damping coefficient of fingerprint is high, splendid anti-fingerprint effect has been possessed.

Description

Shell structure and electronic equipment

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a housing structure and an electronic device.

Background

With the development of science and technology, in addition to the functions of electronic devices such as mobile phones and tablet computers becoming more and more powerful, consumers have also made higher demands on the appearance of the electronic devices.

At present, the shell of part of electronic equipment is mostly made of transparent materials, but the transparent materials are easy to leave fingerprints, and the attractiveness of the electronic equipment is affected.

SUMMERY OF THE UTILITY MODEL

To overcome the problems in the related art, the present disclosure provides a housing structure and an electronic device.

According to a first aspect of embodiments of the present disclosure, there is provided a shell structure comprising a body comprising an inner surface and an outer surface, and a membrane assembly conformed to the inner surface;

the outer surface of the body is provided with a frosting layer, and the frosting layer comprises a plurality of irregular crystal structures;

wherein the plurality of irregular crystalline structures configure the outer surface of the body as a haze surface.

Optionally, the haze surface has a preset roughness Ra of 0.5 μm to 1.0 μm and a preset haze of 60% to 80%.

Optionally, the shape of the crystal structure is an arcuate hill.

Optionally, the curved hillock-like crystal structure has a crystal grain size of 3 μm to 10 μm.

Optionally, the film layer assembly includes a substrate layer, a texture layer and a coating decoration layer, which are sequentially stacked, wherein the substrate layer is attached to the inner surface of the body.

Optionally, the base layer has a thickness of 20 μm to 60 μm.

Optionally, the shell structure further includes a glue layer, the glue layer covers the inner surface of the body, and the film layer assembly covers the glue layer.

Optionally, the housing structure further includes a protection component disposed on a surface of the film layer component away from the body.

Optionally, the protection component includes a first protection layer and at least one second protection layer, the at least one second protection layer is disposed on the surface of the film layer component away from the side of the body, and the first protection layer is disposed on the surface of the at least one second protection layer away from the side of the film layer component.

Optionally, the first protective layer is a black ink layer, and the second protective layer is a light ink layer.

Optionally, the first protective layer has a thickness of 8 μm to 10 μm.

Optionally, the shell structure further comprises an anti-fingerprint film layer, and the anti-fingerprint film layer is attached to the surface of the frosting layer.

Optionally, the body is made of a silicate glass material, the thickness of the body being 0.4mm-0.8 mm.

According to a second aspect of embodiments of the present disclosure, there is provided an electronic device comprising the housing structure as described above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the shell structure in the disclosure has the appearance effect of medium-coarse and medium-fog, and in microscopic observation, the roughness of the crystal structure is high, the particle size span of the crystal structure is large, and in macroscopic observation, the irregular crystal structure is not uniform, so that the roughness of the surface of the crystal structure is larger, the damping coefficient of fingerprints is high, and the shell structure has an excellent fingerprint-resistant effect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic structural view of a membrane layer assembly and housing structure shown in accordance with an exemplary embodiment.

FIG. 2 is a microstructure diagram of a frosted layer of a shell structure according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

In the related technology, housings of electronic devices such as mobile phones and tablet computers are mostly made of Glass materials and are processed by a chemical process to form Anti-Glare Glass (Anti-Glare Glass), so that the housings have high-grade texture of matte and Anti-Glare, and the Anti-fingerprint effect is achieved.

However, the anti-fingerprint effect and the service life of the existing AG anti-dazzle glass are limited, and when the anti-fingerprint effect is invalid, a user holds the shell, so that too many fingerprints are left on the surface of the shell, and the appearance of the user is influenced. And through the glass face, the inside of electronic equipment can be seen to the user, influences its pleasing to the eye.

The utility model provides a shell structure, shell structure includes body and rete subassembly, the body includes internal surface and surface, the rete subassembly is laminated in the internal surface, the surface of body has the frosting layer, the frosting layer includes a plurality of anomalous crystal structures, wherein, a plurality of anomalous crystal structures construct the surface of body into haze surface, the haze surface makes shell structure possess in the appearance effect of thick fog, microcosmic observation is last, the crystal structure roughness is high, crystal structure's particle diameter span is big, macroscopical observation is last, anomalous crystal structure is inhomogeneous, make its surperficial roughness bigger, the damping coefficient of fingerprint is high, splendid anti-fingerprint effect has been possessed.

In an exemplary embodiment, as shown in fig. 1, a housing structure may be applied to a rear cover of an electronic device, such as a mobile phone, a tablet computer, and the like.

The shell structure comprises a body 1 and a film layer assembly 2, wherein the body 1 comprises an inner surface and an outer surface, the film layer assembly 2 is attached to the inner surface, the shell structure is enabled to have a decorative effect, the attractiveness of the shell structure is improved, and the requirement of a user on the appearance of the shell structure is met.

The body 1 is made of silicate glass material, the body 1 can be Corning glass, panda glass or south glass, the Corning glass can enable the body to have high durability and scratch resistance, can bear strong extrusion and repeated touch, and can meet the requirements of large-scale users. The panda glass has the characteristics of bending resistance, scratch resistance, impact resistance, high light transmittance and the like. The south glass can be produced in quantity, and has the characteristics of small color white difference, high chemical strengthening efficiency, excellent performance and the like. The thickness of the body 1 is usually 0.4mm-0.8mm, the processing is easy, and when the body is applied to a rear cover of electronic equipment, the thin design of the electronic equipment is favorably realized.

In the present embodiment, as shown in fig. 1, the outer surface of the body 1 has a frosted layer (not shown in the figure) including a plurality of irregular crystal structures.

In one example, the frosting layer may be formed using the following process:

at a certain temperature, the body 1 is sprayed with a frosting liquid medicine through a liquid knife, so that a frosting layer is formed on the surface of the body 1.

Wherein the frosting liquid medicine comprises frosting powder and water, and the frosting powder comprises sodium fluoride, potassium fluoride and ammonium sulfate.

The mixture ratio of the frosting powder and water is 1: 1-0.6: 1. wherein, the higher the initial roughness required by the body 1 is, the more the Mongolian sand medicinal powder accounts for in the Mongolian sand medicinal water.

A frosting line is formed in a liquid knife spraying mode, the temperature of the frosting line is adjusted to be lower than the conventional 28 +/-3 ℃ temperature, the reaction rate of the surface of the body 1 is changed, the surface of the body 1 has a uniform corrosion effect, and a frosting layer with a plurality of irregular crystal structures is finally formed.

The size of the liquid knife is larger than the conventional size of 1.50 +/-0.5 mm, the size of the liquid knife refers to the width of liquid flow during spraying, and the width of the liquid knife is larger than the width of the liquid flow, so that the liquid flow of frosting liquid medicine can be ensured, and local reaction is avoided.

In the present embodiment, as shown in fig. 1, the plurality of irregular crystal structures configure the outer surface of the body 1 as a haze surface having a predetermined roughness and a predetermined haze.

Under the action of a frosting liquid medicine, uniform fluosilicate is generated on the surface of the body 1, so that the outer surface of the body 1 has a medium-coarse and medium-mist glass effect, a rough structure is formed on the surface, microscopically (shown in figure 2), a high-roughness and irregular crystal structure can be observed on the surface of the body 1, the crystal structure is in a sharp crystal form, and frosted texture is presented in appearance. The preset roughness Ra range of the haze surface is 0.5-1.0 μm, the preset haze range is 60-80%, and the frosted texture of the body 1 is further improved.

In the present embodiment, as shown in fig. 1, the shape of the crystal structure is an arc-shaped hill shape. Wherein, the crystal structure is a sharp crystal form, and needs to be chemically polished to form an arc hill with a smooth effect, so as to change the optical path of the light projected to the body 1.

In the specific implementation process, the body 1 with the frosting layer can be sprayed with the polishing solution, the shape of the crystal structure is ground to form an arc-shaped hill shape through chemical polishing, and finally the outer surface of the body 1 is constructed into a haze surface.

The polishing solution comprises hydrofluoric acid and water, and the proportion of the hydrofluoric acid to the water is 1: 2-1: and 5, enabling the frosted layer to achieve the optimal chemical polishing effect.

In the production line of mass production of the shell structure, along with the consumption of the polishing solution, the proportion of hydrofluoric acid and water is gradually reduced, the concentration is too low, the surface flow mark of the frosted layer is poor, and the chemical polishing effect of the frosted layer is affected, so that the hydrofluoric acid in the polishing solution needs to be supplemented at regular intervals, and the shell structure is prevented from generating the poor effect in appearance.

The crystal grain diameter of the ground hill-shaped crystal structure is 3-10 mu m, the grain diameter span is large and is more uneven, the macro expression of the body 1 is that the roughness of the surface of the body 1 is larger, the damping coefficient of the fingerprint is better, and the fingerprint resistant effect is better.

In this embodiment, as shown in fig. 1, the film assembly 2 includes a substrate layer 21, a texture layer 22 and a film-coated decoration layer 23, which are sequentially stacked, so as to form the composite film assembly 2, thereby improving the aesthetic property of the film assembly 2. Wherein, the base layer 21 is attached to the inner surface of the body 1.

The base layer 21 is a decorative film base material which is a transparent resin film and is made of polyethylene terephthalate, so that the base layer 21 has good mechanical properties, good impact strength, little influence on the mechanical properties at high and low temperatures, low gas and water vapor permeability and excellent gas, water, oil and odor resistance. Meanwhile, the substrate layer 21 has high transparency, can block ultraviolet rays, has good glossiness, and is relatively suitable for the inside of the body 1. The thickness of the substrate layer 21 is 20-60 μm, which not only can provide a foundation support for the film assembly 2, but also can achieve the thinnest state, can realize the thinning of the film assembly 2, and avoids increasing the thickness of the body 1.

The texture layer 22 is a UV texture layer, and has the characteristics of high light transmittance, yellowing resistance, low shrinkage, high hardness, boiling resistance, good high and low temperature resistance, and the like. The texture layer 22 has a lens texture in appearance, and can further improve the aesthetic property of the body 1. The UV texture layer may be formed on the surface of the substrate layer 21 by UV transfer printing based on a texture mold, and the implementation is simple and easy to operate. Wherein the textured mold may be formed by photolithography.

The coating decorative layer 23 is an NCVM coating decorative layer, and is made by stacking non-metal materials such as silicon oxide and niobium oxide. The coating decorative layer 23 is coated on the surface of the texture layer 22 by magnetron sputtering or evaporation plating, so that the texture layer has metal appearance effects with different colors, and the effect of beautifying the surface of the film component 2 is achieved. The film-coated decorative layer 23 has the characteristics of excellent wear resistance, corrosion resistance, coating thickness uniformity, high density and the like.

In this embodiment, as shown in fig. 1, the casing structure further includes a glue layer 3, and the glue layer 3 is used to attach the film assembly 2 to the body. Coating OCA glue on the surface of the film component 2, and then laminating the film component 2 on the inner surface of the body 1) so as to combine the film component 2, so that the lamination of the film component 2 and the body 1 is more reliable, and the phenomenon that the film component 2 falls off is avoided.

The Adhesive layer 3 is, for example, an OCA optical Adhesive layer (OCA for short), has the characteristics of being colorless and transparent, having a light transmittance of more than 95%, and the like, and has good Adhesive strength, and can be cured at room temperature or at intermediate temperature, and the curing shrinkage is small, so that the surface of the Adhesive layer is smoother.

In this embodiment, as shown in fig. 1, the casing structure further includes a protection component 4, and the protection component 4 is disposed on a surface of the film layer component 2 away from the body 1. The protective component 4 includes a plurality of ink layers, which may be the same or different.

In one example, the protection component 4 includes a first protection layer 41 and at least one second protection layer 42, the at least one second protection layer 42 is disposed on a surface of the film layer assembly 2 away from the body 1, and the first protection layer 41 is disposed on a surface of the at least one second protection layer 42 away from the film layer assembly 2.

The second protective layer 42 is a light color ink layer and is formed on the surface of the coating decorative layer 23 of the film assembly 2 through a screen printing process so as to highlight the color and pattern of the coating decorative layer 23 of the film assembly 2 and endow the film assembly 2 with a purer visual effect.

The second protective layer 42 may have 1-3 layers of light color ink layers, and the light color ink layers are blue ink layers, so that the film layer assembly 2 can be protected, and the color and the pattern of the film layer assembly 2 can be ensured to be highlighted.

First protective layer 41 is the black printing ink layer, be provided with the individual layer can, form a side surface of keeping away from membranous layer subassembly 2 in second protective layer 42 through the screen printing technology to in the structure of protection second protective layer 42 and membranous layer subassembly 2, avoid the influence of temperature to membranous layer stability. The thickness of the first protection layer 41 is 8 μm to 12 μm, and the thickness of the first protection layer 41 may be, for example, 10 μm, which can achieve the protection effect and does not affect the decoration effect of the film assembly 2.

In this embodiment, as shown in fig. 1, the shell structure further includes an anti-fingerprint film layer 5, and the anti-fingerprint film layer 5 is attached to the surface of the frosting layer.

Prevent fingerprint rete 5 for high penetrating prevent fingerprint AF membrane, AF membrane for short, adopt the mode of coating film or spraying, form in the surface of body 1, make the surface of body 1 still have stronger hydrophobic, anti greasy dirt and anti fingerprint ability, combine with the frosting layer of body 1, can further promote the anti fingerprint effect of body 1.

The shell structure that provides in this disclosure, the surface of body has the frosting layer, and the frosting layer has anomalous crystal structure, carries out chemical polishing to crystal structure and handles, polishes into curved hillock form with its sharp-pointed outward appearance, promotes shell structure's outward appearance effect, makes shell structure have dull polish feel more, has promoted the exquisite degree of casing.

The grain diameter span of the crystal structure after being polished is large, the roughness is large, the damping coefficient of the fingerprint is better, and the body has a better fingerprint-resistant effect. Meanwhile, the anti-fingerprint film layer is combined to provide double-layer protection for anti-fingerprint, so that the shell structure can effectively prevent fingerprints, oil and dust and has very high light transmittance.

The film layer assembly covers the inner surface of the body through the basal layer, and forms a superposition effect with the frosted layer on the outer surface of the body, so that the fingerprint resistance of the body and the attractiveness of the body are improved, the requirement of a user on the appearance of the electronic equipment is met, and the body has market competitiveness. Utilize the protective layer to protect shell structure's rete subassembly, effectively reduce the loss of rete subassembly, prolonged the life of rete subassembly.

The present disclosure also proposes an electronic device including the housing structure as in the above embodiments. The electronic equipment is, for example, a mobile phone, a tablet computer and wearable equipment, so that the attractiveness of the electronic equipment is improved, the hand feeling of a user during holding is improved, and the use experience of the user is improved.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (14)

1. A shell structure, comprising a body and a membrane assembly, the body comprising an inner surface and an outer surface, the membrane assembly being conformable to the inner surface;

the outer surface of the body is provided with a frosting layer, and the frosting layer comprises a plurality of irregular crystal structures;

wherein a plurality of the irregular crystalline structures configure the outer surface of the body as a haze surface.

2. The shell structure of claim 1, wherein the haze surface has a predetermined roughness Ra of 0.5 μ ι η to 1.0 μ ι η and a predetermined haze of 60% to 80%.

3. The shell structure of claim 1, wherein the crystal structure is in the shape of an arcuate hill.

4. The shell structure of claim 3, wherein said curved hillock-like crystal structure has a crystal grain size of 3 μm to 10 μm.

5. The shell structure of claim 1, wherein the film assembly comprises a substrate layer, a texture layer and a film-coated decoration layer, which are sequentially stacked, wherein the substrate layer is attached to the inner surface of the body.

6. The shell structure of claim 5, wherein the base layer has a thickness of 20 μm to 60 μm.

7. The housing structure of claim 1 further comprising a glue layer covering the inner surface of the body, the film layer assembly covering the glue layer.

8. The housing structure of claim 1, further comprising a protective component disposed on a surface of the film layer component on a side away from the body.

9. The containment structure of claim 8 wherein the protective assembly includes a first protective layer and at least one second protective layer disposed on a surface of the membrane assembly distal from the body, the first protective layer being disposed on a surface of the at least one second protective layer distal from the membrane assembly.

10. The housing structure of claim 9 wherein the first protective layer is a black ink layer and the second protective layer is a light ink layer.

11. The housing structure according to claim 10, characterized in that the thickness of the first protective layer is 8-10 μ ι η.

12. The shell structure of claim 1, further comprising an anti-fingerprint film layer attached to a surface of the frosting layer.

13. A shell structure according to any of claims 1-12, characterized in that the body is made of a silicate glass material, the thickness of the body being 0.4-0.8 mm.

14. An electronic device, characterized in that the electronic device comprises a housing structure according to any of claims 1-13.

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