Shell, electronic equipment and manufacturing method of shell

Abstract

The invention provides a shell, electronic equipment and a manufacturing method of the shell. The shell comprises a substrate and an elastic decorative layer. The substrate comprises an inner surface and an outer surface which are oppositely arranged in the thickness direction. The decorative layer is arranged on the outer surface of the base plate, and the decorative layer is formed by solidifying liquid glue on the base plate. According to the scheme, the touch feeling can be improved, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of shell manufacturing, and in particular, to a shell, an electronic device and a method for manufacturing the shell. Background Art

[0002] Taking the back shell of a mobile phone as an example, the prior art usually uses polycarbonate injection molding to form a base shell, or uses glass fiber board hot pressing to form a base shell, and then uses hot melt adhesive bonding to bond the texture layer to the aforementioned base shell. The back shell of the mobile phone manufactured in this way has a poor touch. Summary of the invention

[0003] The present application provides a housing, an electronic device and a method for manufacturing the housing, which can not only improve the touch feeling but also reduce the manufacturing cost.

[0004] The present application provides a housing, comprising:

[0005] a substrate, comprising an inner surface and an outer surface disposed opposite to each other in a thickness direction; and

[0006] The elastic decorative layer is arranged on the outer surface of the substrate, and the decorative layer is formed on the substrate by solidifying liquid glue.

[0007] Optionally, the liquid glue includes liquid PU glue made of polyurethane acrylate polymer.

[0008] Optionally, the liquid PU glue includes a main agent and a curing agent, the main agent includes HM6003, the curing agent includes HM160, and the main agent and the curing agent are mixed in a ratio of 100:10; and / or

[0009] The transmittance of the decorative layer at a visible light wavelength of 550 nm is in the range of 70% to 95%, and the thickness of the decorative layer is in the range of 0.04 mm to 0.25 mm.

[0010] Optionally, the housing further comprises an anti-fingerprint layer, wherein the anti-fingerprint layer is attached to a surface of the decorative layer on a side facing away from the substrate; and / or

[0011] The decorative layer is provided with a leather texture.

[0012] Optionally, the substrate is a transparent substrate, and the shell further includes a color layer, and the color layer is arranged on the inner surface of the substrate.

[0013] Optionally, the housing further comprises a texture layer, wherein the texture layer is disposed between the substrate and the color layer; and / or

[0014] The housing further comprises a brightening coating, and the brightening coating is arranged between the substrate and the color layer.

[0015] Optionally, the housing further comprises a color layer, wherein the color layer is disposed between the substrate and the decoration layer; and / or

[0016] The substrate is a colored substrate; and / or

[0017] The substrate includes at least one of a glass fiber composite material and a polycarbonate.

[0018] The present application also provides an electronic device, including:

[0019] The main body of the equipment; and

[0020] A shell as described in any of the above items, wherein the shell is connected to the device body.

[0021] The present application also provides a method for manufacturing a housing, comprising:

[0022] Disposing liquid glue on the outer surface of the substrate;

[0023] The liquid glue is cured, and after being cured, the liquid glue forms an elastic decorative layer on the substrate.

[0024] Optionally, providing liquid glue on the outer surface of the substrate includes:

[0025] Liquid PU glue is applied on the substrate by a UV transfer machine.

[0026] Optionally, the manufacturing method further comprises:

[0027] Using a mold to emboss a texture on the liquid PU glue;

[0028] Pre-curing the liquid PU glue;

[0029] Demoulding of mould.

[0030] Optionally, applying liquid PU glue on the substrate by a UV transfer machine comprises:

[0031] The UV transfer machine is controlled to continuously apply liquid PU glue on the substrate in a square wave-shaped glue path.

[0032] Optionally, the manufacturing method further comprises:

[0033] The substrate is heated before dispensing so that the temperature of the substrate is between 35° and 45°.

[0034] Optionally, the manufacturing method further comprises:

[0035] An anti-fingerprint layer is formed on the decoration layer.

[0036] Optionally, the manufacturing method further comprises:

[0037] At least one of a texture layer, a brightening coating layer and a color layer is formed on the inner surface of the substrate.

[0038] Optionally, the manufacturing method further comprises:

[0039] A pattern layer is formed on the inner surface of the substrate, and the step of forming the pattern layer is arranged before any step of forming the texture layer, the brightening coating layer, and the color layer. The technical solution provided by the present application can at least achieve the following beneficial effects:

[0040] The present application provides a housing, an electronic device and a method for manufacturing the housing, wherein an elastic decorative layer is provided on the outer surface of a substrate, so that the housing has a leather touch. Moreover, the decorative layer is solidified by liquid glue, and compared with the method of processing a leather layer and then bonding the leather layer with hot melt glue, the manufacturing process is simplified, the processing efficiency is high and the cost is reduced, thus meeting the cost reduction requirements of low-end device housings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a cross-sectional view of a housing shown in an exemplary embodiment of the present application;

[0042] Figure 2 is a cross-sectional view of a housing shown in yet another exemplary embodiment of the present application;

[0043] Figure 3 is a cross-sectional view of a housing shown in yet another exemplary embodiment of the present application;

[0044] Figure 4 is a cross-sectional view of a housing shown in yet another exemplary embodiment of the present application;

[0045] Figure 5 is a flow chart of a method for manufacturing a housing according to an exemplary embodiment of the present application;

[0046] Figure 6 is a flow chart of a method for manufacturing a housing according to another exemplary embodiment of the present application;

[0047] Figure 7 It is a glue path diagram of a UV transfer machine dispensing glue shown in an exemplary embodiment of the present application;

[0048] Figure 8 is a flow chart of a method for manufacturing a shell according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0049] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application.

[0050] The terms used in this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantity restrictions, but indicate that there is at least one, and will be separately described if only "one" is referred to. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0051] After the existing shell is formed into a base material, PU synthetic leather or genuine leather or silicone synthetic leather is attached to the base shell by hot melt adhesive bonding, and then cut to form a mobile phone back cover or decorative parts. In addition, PU synthetic leather is a laminated structure with a cloth base material inside, which has a complex processing process, low processing efficiency and high cost.

[0052] Please refer to Figure 1 , Figure 1 It is a cross-sectional view of a housing 100 according to an exemplary embodiment of the present application.

[0053] The present application provides a housing 100 , which includes but is not limited to a rear housing and a battery cover of an electronic device.

[0054] The shell 100 includes a substrate 10 and a decorative layer 20 arranged on the substrate 10. The substrate 10 includes an outer surface 11 and an inner surface 12 arranged opposite to each other in the thickness direction. The decorative layer 20 is arranged on the outer surface 11 of the substrate 10. The decorative layer 20 is formed on the substrate 10 by curing liquid glue, and the decorative layer 20 is elastic.

[0055] According to the above description, the housing has a leather touch by providing an elastic decorative layer 20 on the substrate 10. Moreover, the decorative layer 20 is formed by curing a liquid adhesive. Compared with the method of processing a leather layer and then bonding the leather layer with a hot melt adhesive, the manufacturing process is simplified, the processing efficiency is high, and the cost is reduced, thus meeting the cost reduction requirements of low-end device housings.

[0056] In one embodiment, the liquid glue may be liquid silicone. In this embodiment, the liquid glue includes liquid PU glue made of polyurethane acrylate polymer. After the liquid PU glue is cured, it imparts soft elasticity and a more realistic leather texture to the substrate 10, has excellent bonding strength, has a higher degree of fit with the substrate 10, and has good heat and weather resistance, is colorless and translucent, and is environmentally friendly and non-toxic.

[0057] In one embodiment, the liquid PU glue includes a main agent and a curing agent, the main agent includes HM6003, the curing agent includes HM160, and the main agent and the curing agent are mixed in a ratio of 100:10. Among them, HM6003 refers to the main agent of the liquid PU glue code-named 6003 produced by Haiming, and HM160 refers to the curing agent of the liquid PU glue code-named 160 produced by Haiming.

[0058] In one embodiment, the transmittance of the decorative layer 20 at a wavelength of 550 nm of visible light is in the range of 70% to 95%. For example, the transmittance can be set to 70%, 75%, 80%, 85%, 90%, 95%, but not limited thereto. The thickness of the decorative layer 20 is in the range of 0.04 mm to 0.25 mm. The thickness of the decorative layer 20 can be 0.04 mm, 0.08 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.22 mm, 0.25 mm, but not limited thereto.

[0059] In one embodiment, a leather texture may be provided on the decorative layer 20. Specifically, the leather texture may be embossed on the liquid PU glue using a texture mold before the liquid PU glue is cured, so that the leather texture of the housing 100 is better.

[0060] In one embodiment, Figure 1As shown, the housing 100 further includes an anti-fingerprint layer 30, and the anti-fingerprint layer 30 is attached to the surface of the decorative layer 20 on one side facing away from the substrate 10. The anti-fingerprint layer 30 can be set as a fluoride layer. The anti-fingerprint layer 30 can reduce the surface energy of the decorative layer 20, play an anti-fouling and anti-fingerprint effect, has strong anti-fouling ability and is easy to clean. For example, the fluoride deposition can be attached to the surface of the decorative layer 20 by vacuum plating or spraying. The thickness range of the anti-fingerprint layer 30 is 0.001 to 0.003 mm, for example, it can be 0.001 mm, 0.002 mm, 0.003 mm, but is not limited to this.

[0061] Please refer to Figure 2 , Figure 2 It is a cross-sectional view of a housing 100 showing yet another exemplary embodiment of the present application.

[0062] In one embodiment, the substrate 10 is a transparent substrate, and the housing 100 further includes a color layer 40, which is disposed on the inner surface 12 of the substrate 10. The color of the color layer 40 can be presented through the transparent substrate, so that the appearance of the housing 100 is richer. The color layer 40 can be coated on the inner surface 12 of the substrate 10 by printing or spraying using ink or paint to present an overall color effect.

[0063] exist Figure 2 In the illustrated embodiment, the outer surface 11 of the substrate 10 is provided with a decoration layer 20 and an anti-fingerprint layer 30 in sequence.

[0064] Please refer to Figure 3 , Figure 3 It is a cross-sectional view of a housing 100 showing yet another exemplary embodiment of the present application.

[0065] In one embodiment, the housing 100 further includes a texture layer 50, which is disposed between the substrate 10 and the color layer 40. The texture layer 50 can play a decorative role, making the appearance of the housing 100 more three-dimensional and beautiful. The texture layer 50 can be set as a UV texture layer, and the texture can be formed by laser engraving mold transfer. The thickness of the texture layer 50 ranges from 0.006 mm to 0.018 mm, for example, it can be 0.006 mm, 0.01 mm, 0.015 mm, 0.018 mm, but is not limited thereto.

[0066] In one embodiment, the housing 100 further includes a brightening coating 60, which is disposed between the substrate 10 and the color layer 40. The brightening coating 60 can increase the brightness of the substrate 10 and improve the appearance quality of the housing 100. The brightening coating 60 is formed by magnetron sputtering or evaporation, and the material of the brightening coating 60 includes but is not limited to an indium metal film layer or a film layer stacked by silicon oxide, niobium oxide, and silicon nitride. The thickness of the brightening coating 60 ranges from 150 nm to 180 mm, for example, 150 nm, 160 nm, 170 nm, 180 nm, but is not limited thereto.

[0067] Please refer to Figure 4 , Figure 4 It is a cross-sectional view of a housing 100 showing yet another exemplary embodiment of the present application.

[0068] exist Figure 4 In the illustrated embodiment, the color layer 40 is disposed between the substrate 10 and the decoration layer 20, and the color layer 40 disposed in this way can also present an overall color effect on the housing 100. The substrate 10 can be a transparent substrate or a non-transparent substrate. The decoration layer 20 is disposed on a side surface of the color layer 40 facing away from the substrate 10, and the anti-fingerprint layer 30 is disposed on the decoration layer 20.

[0069] exist Figure 4 In the illustrated embodiment, the substrate 10 is a colored substrate, and the color of the substrate 10 can present an overall color effect on the housing 100. The color of the colored substrate is not limited.

[0070] exist Figures 1 to 4 In the illustrated embodiment, the substrate 10 includes at least one of a glass fiber composite material and a polycarbonate. That is, the substrate 10 may be made of a glass fiber composite material alone, or may be made of a combination of a glass fiber composite material and polycarbonate. The thickness of the substrate 10 may range from 0.3 mm to 1.2 mm, for example, 0.3 mm, 0.5 mm, 0.6 mm, 0.8 mm, 1 mm, or 1.2 mm, but is not limited thereto.

[0071] The present application also provides an electronic device, which includes a device body and the above-mentioned housing 100, and the housing 100 is connected to the device body. The housing 100 includes but is not limited to the rear housing and battery cover of the electronic device.

[0072] Please refer to Figure 5 , Figure 5 The present invention is a flowchart of a method for manufacturing a housing according to an exemplary embodiment of the present invention.

[0073] The present application also provides a method for manufacturing a shell, which includes step S10 and step S20.

[0074] Step S10 , disposing liquid glue on the outer surface 11 of the substrate 10 .

[0075] In step S10 , the liquid glue may be coated on the outer surface 11 of the substrate 10 , or may be disposed on the outer surface 11 of the substrate 10 by a UV transfer machine.

[0076] Step S20 , curing the liquid glue, wherein the liquid glue forms an elastic decorative layer 20 on the substrate 10 after being cured.

[0077] In step S20, the liquid glue may be cured by light radiation, the curing temperature may be set to 85°C to 95°C, and the curing time may be 40 minutes to 60 minutes, but is not limited thereto.

[0078] According to the above description, the manufacturing method is to set the liquid glue on the outer surface 11 of the substrate 10, and then solidify the liquid glue to form the decorative layer 20 on the substrate 10. Such a setting can, on the one hand, make the housing 100 have a leather texture, and on the other hand, compared with the leather processing technology and the use of hot melt adhesive to bond the leather to the substrate, the process is simplified, the processing efficiency is high and the cost is reduced, which meets the cost reduction demand of the housing of low-end equipment.

[0079] Please refer to Figure 6 , Figure 6 The present invention is a flowchart of a method for manufacturing a housing according to another exemplary embodiment of the present invention.

[0080] In one embodiment, in step S10, the step of providing liquid glue on the outer surface 11 of the substrate 10 specifically includes:

[0081] Step S11 , applying liquid PU glue on the substrate 10 by using a UV transfer machine.

[0082] The UV transfer process has the advantages of ultra-thinness, high hardness, high wear resistance, exquisite appearance and good texture.

[0083] In one embodiment, the liquid glue may be liquid silicone. In this embodiment, the liquid glue includes liquid PU glue made of polyurethane acrylate polymer. After the liquid PU glue is cured, it imparts soft elasticity and a more realistic leather texture to the substrate 10, has excellent bonding strength, has a higher degree of fit with the substrate 10, and has good heat and weather resistance, is colorless and translucent, and is environmentally friendly and non-toxic.

[0084] In one embodiment, the liquid PU glue includes a main agent and a curing agent, the main agent includes HM6003, the curing agent includes HM160, the main agent and the curing agent are mixed in a ratio of 100:10, and can be left to stand for 3 to 8 minutes after mixing. Among them, HM6003 refers to the main agent of the liquid PU glue code-named 6003 produced by Haiming, and HM160 refers to the curing agent of the liquid PU glue code-named 160 produced by Haiming.

[0085] In one embodiment, the manufacturing method further includes step S12, step S13 and step S14 which are arranged after step S11.

[0086] Step S12, using a texture mold to emboss the liquid PU glue to make the liquid PU glue produce a leather texture, so that the leather texture of the housing 100 is better.

[0087] Step S13, pre-curing the liquid PU glue to increase the size of the liquid PU glue and facilitate demolding of the mold.

[0088] In step S13, UV light pre-curing can be used, and LED light source is used for irradiation, and the radiation energy is 100mj / cm 2 Up to 500mj / cm 2 , but it is not limited to this.

[0089] Step S14, demoulding the mold, separating the pre-cured liquid PU glue from the mold. The pre-cured liquid PU glue performs step S20 within 1 hour, in which the liquid PU glue is post-cured, and the post-cured liquid PU glue forms a decorative layer 20.

[0090] Please refer to Figure 7 , Figure 7 A glue path diagram for dispensing glue using a UV transfer machine, shown as an exemplary embodiment of the present application.

[0091] In one embodiment, the UV transfer machine can be controlled to continuously apply liquid PU glue on the substrate in a "bow"-shaped glue path 13, and the interval δ between any two adjacent transverse glue paths is equal. In this way, the glue paths do not overlap, the glue amount at the glue point is relatively uniform, and the thickness of the liquid PU glue at each location is more uniform after flowing.

[0092] In one embodiment, in order to ensure the fluidity of the liquid PU glue, the manufacturing method further includes:

[0093] The substrate 10 is heated before dispensing, so that the temperature of the substrate 10 is between 35° and 45°. This can prevent the liquid PU glue from solidifying due to too low a temperature and improve the fluidity of the liquid PU glue.

[0094] Please refer to Figure 8 , Figure 8 The present invention is a flowchart of a method for manufacturing a housing according to another exemplary embodiment of the present invention.

[0095] The manufacturing method further comprises:

[0096] Step S30 , forming an anti-fingerprint layer 30 on the decoration layer 20 .

[0097] The anti-fingerprint layer 30 can be deposited on the decorative layer 20 by vacuum plating or spraying. The anti-fingerprint layer 30 has the effects of reducing the surface energy of the liquid glue, anti-fouling and anti-fingerprint.

[0098] In one embodiment, the manufacturing method further comprises:

[0099] Step S40 , forming at least one of a texture layer, a brightening coating layer and a color layer on the inner surface 12 of the substrate 10 .

[0100] The texture layer can make the shell 100 produce a texture effect, the brightening coating layer can increase the brightness of the shell 100, and the color layer can make the shell 100 present an overall color effect, thereby improving the appearance quality of the shell 100.

[0101] In one embodiment, the manufacturing method further comprises:

[0102] Step S35 , forming a pattern layer on the inner surface 12 of the substrate 10 , is provided before step S40 .

[0103] In step S35, for example, the brand's LOGO graphics or characters can be silk-screened and cured by baking at 70°C to 90°C for 20 minutes to 30 minutes, but the present invention is not limited thereto.

[0104] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A housing, characterized in that: include: A substrate, comprising an inner surface and an outer surface disposed opposite to each other in a thickness direction; and The elastic decorative layer is arranged on the outer surface of the substrate, and the decorative layer is formed on the substrate by solidifying liquid glue.

2. The housing according to claim 1, characterized in that The liquid glue includes liquid PU glue whose material is polyurethane acrylate polymer.

3. The housing according to claim 2, characterized in that: The liquid PU glue comprises a main agent and a curing agent, the main agent comprises HM6003, the curing agent comprises HM160, and the main agent and the curing agent are mixed in a ratio of 100:10; and / or The transmittance of the decorative layer at a visible light wavelength of 550 nm is in the range of 70% to 95%, and the thickness of the decorative layer is in the range of 0.04 mm to 0.25 mm.

4. The housing according to any one of claims 1 to 3, characterized in that: The housing further comprises an anti-fingerprint layer, wherein the anti-fingerprint layer is attached to a surface of the decorative layer on a side facing away from the substrate; and / or The decorative layer is provided with a leather texture.

5. The housing according to any one of claims 1 to 3, characterized in that: The substrate is a transparent substrate, and the shell further includes a color layer, which is arranged on the inner surface of the substrate.

6. The housing according to claim 5, characterized in that The housing further comprises a texture layer, wherein the texture layer is disposed between the substrate and the color layer; and / or The housing further comprises a brightening coating, and the brightening coating is arranged between the substrate and the color layer.

7. The housing according to any one of claims 1 to 3, characterized in that: The housing further comprises a color layer, wherein the color layer is disposed between the substrate and the decoration layer; and / or The substrate is a colored substrate; and / or The substrate includes at least one of a glass fiber composite material and a polycarbonate.

8. An electronic device, characterized in that: include: Equipment body; and The housing according to any one of claims 1 to 7, wherein the housing is connected to the device body.

9. A method for manufacturing a housing, characterized in that: include: Disposing liquid glue on the outer surface of the substrate; The liquid glue is cured, and after being cured, the liquid glue forms an elastic decorative layer on the substrate.

10. The method for manufacturing a housing according to claim 9, characterized in that: The step of providing liquid glue on the outer surface of the substrate comprises: Liquid PU glue is applied on the substrate by a UV transfer machine.

11. The method for manufacturing a housing according to claim 10, characterized in that: The manufacturing method further comprises: Using a textured mold to emboss the liquid PU glue; Pre-curing the liquid PU glue; Demoulding of mould.

12. The method for manufacturing a housing according to claim 10, characterized in that: The step of applying liquid PU glue on the substrate by a UV transfer machine comprises: The UV transfer machine is controlled to continuously apply liquid PU glue on the substrate in a "bow"-shaped glue path, and the intervals between any two adjacent transverse glue paths are equal.

13. The method for manufacturing a housing according to claim 10, characterized in that: The manufacturing method further comprises: The substrate is heated before dispensing so that the temperature of the substrate is between 35° and 45°.

14. The method for manufacturing a housing according to claim 10, characterized in that: The manufacturing method further comprises: An anti-fingerprint layer is formed on the decoration layer.

15. The method for manufacturing a housing according to claim 10, characterized in that: The manufacturing method further comprises: At least one of a texture layer, a brightening coating layer and a color layer is formed on the inner surface of the substrate.

16. The method for manufacturing a housing according to claim 15, characterized in that: The manufacturing method further comprises: A pattern layer is formed on the inner surface of the substrate, and the step of forming the pattern layer is arranged before any step of forming the texture layer, the brightening coating layer, and the color layer.

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