CN103128976A - Shell and manufacturing method thereof and device comprising shell - Google Patents

Shell and manufacturing method thereof and device comprising shell Download PDF

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Publication number
CN103128976A
CN103128976A CN2011103884477A CN201110388447A CN103128976A CN 103128976 A CN103128976 A CN 103128976A CN 2011103884477 A CN2011103884477 A CN 2011103884477A CN 201110388447 A CN201110388447 A CN 201110388447A CN 103128976 A CN103128976 A CN 103128976A
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China
Prior art keywords
rete
housing
curable resin
raised design
layer
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CN2011103884477A
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CN103128976B (en
Inventor
韩小勤
刘绍连
田守东
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Publication of CN103128976A publication Critical patent/CN103128976A/en
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  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a shell and a manufacturing method of the shell. The manufacturing method of the shell includes that solidifiable resin is utilized to form a protrusion pattern on the surface of a first film layer through a mold pressing process; and then a second shell layer is formed on the surface of the first film layer and the protrusion pattern through a plastic injection molding process. Through the manufacturing method, the shell with a reduced thickness can be manufactured at lower cost, and the shell can still maintain the beautiful pattern.

Description

Housing and manufacture method thereof, comprise the device of this housing
Technical field
The device that the present invention relates to a kind of housing, makes the method for this housing and comprise this housing more specifically, relates to a kind of the have housing of the thickness of attenuate, the device of making the method for this housing and comprising this housing.
Background technology
Frivolous and attractive in appearance be two large key factors of design of electronic products always.With regard to frivolous, take mobile phone as example, the thickness of smart mobile phone has been as thin as 8.49 millimeters, and regular handset has reached the thinnest record of 5.9 millimeters especially.Under this form, except the integrated level of the electronic device of interior of mobile phone improved, it is important that the thinning of handset shell also becomes.In addition, housing is also a Cell Phone Design key factor attractive in appearance.For example on the battery cover housing at mobile phone front housing and the back side, can form various patterns, increase aesthetic feeling to attract the consumer.
Here as an example of mobile phone example, housing has been described with following, has it should be understood that, the housing that the present invention mentions includes but not limited to the housing of mobile phone, can also be the housing of any other device, such as the housing of electronic device such as flat-panel monitor, tablet PC etc.
Fig. 1 illustrates conventional handset shell.As shown in Figure 1, housing comprises ground floor 1 and the second layer 2, be formed with pattern P on interface between ground floor 1 and the second layer 2, and can integrally formedly be useful on the architectural feature 3 of mounting electronic device such as printed circuit board (PCB) on the surface opposite with ground floor 1 of the second layer 2.Ground floor 1 is transparent, and the second layer 2 is opaque, and pattern P can be recessed pattern or raised design.Like this, the user can observe the pattern P on housing, and surface of shell is smooth when touching.
Conventional housing forms by twice injection molding process.Particularly, can form ground floor 1 and the second layer 2 by twice injection molding process respectively, then ground floor 1 and the second layer 2 are bonded together; Perhaps first form one of ground floor 1 and second layer 2 by injection molding process, then utilize injection molding process to form another layer on one of described.Owing to having adopted injection molding process twice, the thickness of conventional housing is usually more than 1.8 millimeters, and is larger on the impact of device gross thickness.And, because expended a large amount of case materials, and need at least two injection forming molds, thereby the manufacturing cost of conventional housing is higher.
Therefore, need a kind of housing and manufacture method thereof of novelty, it can overcome one or more in defects, perhaps can have one or more other advantages or feature.
Should be understood that above description only is used for understanding background of the present invention, thereby may comprise the information that does not consist of prior art.
Summary of the invention
One aspect of the present invention is to provide a kind of housing, and it has the thickness of attenuate.
Another aspect of the present invention is to provide a kind of housing, and it has the manufacturing cost of reduction.
Another aspect of the present invention is to provide a kind of method of making described housing.
One one exemplary embodiment according to the present invention, a kind of method of making housing can comprise: utilize curable resin to form raised design on the surface of the first rete by mould pressing process; And form the second shell layer by injection molding process on the described surface of described the first rete and described raised design.
In an one exemplary embodiment, described mould pressing process can comprise: a template is provided, is formed with recessed pattern on a surface of described template; Curable resin is instilled in the female pattern; With described the first film lamination on the described surface of described template, thereby form the raised design of curable resin on the described surface of described the first rete; And solidify described curable resin.
In an one exemplary embodiment, described mould pressing process can comprise: described the first rete is arranged on the flat surfaces of a substrate; Form curable resin layer on the surface of described the first rete; Impress described curable resin layer with the template with recessed pattern, thereby form the raised design of described curable resin on the described surface of described the first rete; And solidify described curable resin.
In an one exemplary embodiment, the method for described manufacturing housing also can comprise: after described mould pressing process and before described injection molding process, form color layers on the described surface of described the first rete and described raised design.
In an one exemplary embodiment, the method for described manufacturing housing also can comprise: form protective layer on described color layers; And form adhesive linkage on described protective layer.
In an one exemplary embodiment, the method for described manufacturing housing also can comprise: before described injection molding process, make it have three-dimensional shape thereby described the first rete with described raised design is carried out thermoforming process; And thereby the edge that cuts described the first rete forms the required shape of described housing.
In an one exemplary embodiment, described the first rete can have the thickness between 0.05mm to 0.6mm, the thickness between preferred 0.1mm to 0.4mm.
In an one exemplary embodiment, described curable resin can be a kind of in ultraviolet curable resin and heat reactive resin; Described the first rete can be formed by one of PET, PC, PMMA and ABS; Described the first rete and described raised design can be transparent, and can have the architectural feature for stationary housing or device installation on the surface opposite with described the first rete of described the second shell layer.
Another one exemplary embodiment according to the present invention, a kind of housing can comprise: the first rete; Raised design is formed on the surface of described the first rete; And second shell layer, being formed on the described surface and described raised design of described the first rete, the described raised design on wherein said the first rete forms by mould pressing process.
In an one exemplary embodiment, described the first rete can have the thickness between 0.05mm to 0.6mm, preferably, and the thickness between 0.1mm to 0.4mm.
In an one exemplary embodiment, described housing also can comprise: color layers is formed on the described surface of described the first rete and described raised design and below described the second shell layer.
In an one exemplary embodiment, described housing also can comprise: protective layer is formed on described color layers; And adhesive linkage, be formed between described color layers and described the second shell layer.
In an one exemplary embodiment, the side surface of described the first rete can be coated by described the second shell layer.
In an one exemplary embodiment, described curable resin can be a kind of in ultraviolet curable resin and heat reactive resin; Described the first rete can be formed by one of PET, PC, PMMA and ABS; Described the first rete and described raised design can be transparent; And can have the architectural feature for stationary housing or installing device on the surface opposite with described the first rete of described the second shell layer.
The another one exemplary embodiment according to the present invention, a kind of device comprise the housing of making according to foregoing method.
Description of drawings
Describe its one exemplary embodiment in detail by the reference accompanying drawing, it is more obvious that above and other features and advantages of the present invention will become, in accompanying drawing:
Fig. 1 is schematic cross sectional views, and conventional housing is shown;
Fig. 2 is schematic cross sectional views, and housing according to an embodiment of the invention is shown;
Fig. 3,4,5,6,7,8 and 9 is schematic cross sectional views, and each interstage of the method for making according to an embodiment of the invention housing is shown;
Figure 10 is zoomed-in view, and the end of housing shown in Figure 9 is shown; And
Figure 11 is schematic cross sectional views, and an interstage of the method for making according to another embodiment of the present invention housing is shown.
The specific embodiment
Describe below with reference to accompanying drawings one exemplary embodiment of the present invention in detail.Accompanying drawing is only schematic diagram, and does not draw in proportion.
Fig. 2 is schematic cross sectional views, and housing according to an embodiment of the invention is shown; Fig. 3,4,5,6,7,8 and 9 is schematic cross sectional views, and each interstage of the method for making according to an embodiment of the invention housing is shown.
As shown in Figure 2, housing comprises the first film layer 13, is formed on the color layers 16 of the lip-deep raised design 15 of the first film layer 13, the surface that covers the first film layer 13 and raised design 15 and is formed on the second layer 17 on color layers 16.
The first film layer 13 can be transparent membrane.For example, the first film layer 13 can be the transparent membrane that is formed by PET, PC, PMMA or ABS.The first film layer 13 can have the thickness of 0.05mm to 0.6mm scope, preferably, has the thickness of 0.1mm to 0.4mm scope.Description by the back will be understood, and the thickness of the first film layer 13 is not limited to this, and for example, the first film layer 13 also can have the thickness larger than 0.6mm.
Raised design 15 can be formed on the surface of the first film layer 13.Raised design 15 can be formed by curable resin, for example by a kind of formation the in ultraviolet ray (UV) cured resin and heat reactive resin.Raised design 15 can have for example height of 0.1-0.3mm, be for example that 0.15mm is high, and raised design 15 can have various section shapes and flat shape.Raised design 15 can be also transparent.
Alternatively, color layers 16 can be formed on the first film layer 13 with raised design 15.Color layers 16 can provide housing required color.In one embodiment, color layers 16 can be omitted.
The second layer 17 can be formed on color layers 16.Can have integrally formed architectural feature 18 on the second layer 17, architectural feature 18 can be used for the fixing of housing or is used for mounting electronic device on housing.For example, architectural feature 18 can be buckle, solid cylinder or cylinder with holes etc.The second layer 17 can be opaque.
Although not shown, can also form extra layer between color layers 16 and the second layer 17.For example, can be formed with protective layer on color layers 16 is not damaged in subsequent technique with protection color layers 16.Again for example, can be formed with adhesive linkage to promote bonding with the second layer 17 on protective layer.The example that should be understood that additional layer is not limited to this.
Below with reference to Fig. 3,4,5,6,7,8 and 9, the method for making according to an embodiment of the invention housing is described.
As shown in Figure 3, provide template 10.Can be formed with recessed pattern 11 on the surface of template 10.Recessed pattern 11 can have various section shapes and flat shape, and is not limited to shape shown in Figure 3.Recessed pattern 11 can have for example degree of depth of 0.1-0.3mm, is for example that 0.15mm is dark.Template 10 for example can be made by stainless steel.
Next, as shown in Figure 4, curable resin 12 can be instilled in the recessed pattern 11 of template 10.Curable resin 12 fills up recessed pattern 11 at least.Curable resin 12 can be for example UV cured resin or heat reactive resin, but is not limited to this.Curable resin 12 can be transparent.
Then, with reference to Fig. 5, the first film layer 13 can being placed in instils has on the template 10 of curable resin 12, and with rigid plate 14, the first film layer 13 is pressed on mould 10.Rigid plate 14 can be obliquely from a side pressure of the first film layer 13 to opposite side, thereby can extrude unnecessary curable resin 12.Like this, curable resin 12 can only be retained in recessed pattern 11.
With reference to figure 6, mould 10 can be removed, and the curable resin 12 that is stamped is cured, thereby forms and the corresponding raised design 15 of recessed pattern 11 on the surface of the first film layer 13.The curing of curable resin 12 can be by applying ultraviolet ray or heat is carried out.In one embodiment, described curing can be carried out before removing mould 10, so that curable resin 12 is converted into partly solidified state, then removed mould 10, and proceeded to solidify so that curable resin 12 is converted into complete solid state.At this in another embodiment, described curing can be carried out after removing mould 10, and curable resin 12 is converted into complete solid state.Like this, just obtained structure shown in Figure 6.
As previously mentioned, in an embodiment of the present invention, by forming raised design on the surface that is stamped in the first film layer 13.Because adopted imprint process rather than conventional injection molding process, so the first film layer 13 can have the thickness of attenuate.When adopting conventional injection molding process, the thickness of ground floor 1 shown in Figure 1 is usually greater than 0.6mm.When being low to moderate 0.6mm, injection molding process has very low yield.0.1-0.4mm the injection molding process thickness that can not reach especially.And in an embodiment of the present invention, owing to having adopted imprint process, so the first film layer 13 can have the following thickness of 0.6mm, for example thickness of 0.05-0.6mm scope.To 0.05mm or when following, the yield of imprint process is lower when the thickness reduction of the first film layer 13.In inventor's experiment, can adopt the 0.1-0.4mm thickness range for example the first film layer 13 of 0.125mm thickness complete imprint process with very high yield.What certainly can understand is that the first film layer 13 also can have the above thickness of 0.6mm.
In an embodiment of the present invention, owing to having adopted imprint process, and the manufacturing cost of the template of imprint process is more much lower than the manufacturing cost of the mould of injection molding process, therefore can significantly reduce manufacturing cost.And, have the thickness of attenuate due to the first film layer 13, so also can reduce material cost.
Next, continue with reference to Fig. 7, can form for example color layers 16 on the first film layer 13 of raised design 15 being formed with.Color layers 16 can give housing required color.In one embodiment, color layers 16 also can be omitted, so housing will show the layer color of the second layer 17 for example of back.
Although not shown, can also form extra layer on color layers 16.For example, can form protective layer and not be damaged during subsequent technique with protection color layers 16 on color layers 16, form the reflecting layer improving the glistening intensity of housing, and form adhesive linkage with promote and the follow-up second layer 17 between cohesive etc.
In some applications, housing may have even shape; And in other were used, housing may have three-dimensional shape.When the needs three-dimensional shape, can form technique to produce required three-dimensional shape to housing.For example, as shown in Figure 8, can carry out heat forming technology with formation cardinal principle U-shaped structure to resulting structures, thus can be as for example battery cover of mobile phone.
Although not shown, in certain embodiments, can also comprise and cut out technique, shear the edge of housing to form required form.
Then, as shown in Figure 9, resulting structures with three-dimensional shape (perhaps in certain embodiments, do not adopt heat forming technology and still for the general plane two-dimensional shapes) can be placed in injection forming mold and carry out injection molding process, thereby form the second layer 17 on color layers 16.As previously mentioned, owing to having adopted injection molding process, so the second layer 17 can have the thickness larger than ground floor 13, thereby provide housing required rigidity.The second layer 17 can be by forming such as ABS, PC etc.In this injection molding process, can form on the surface of the second layer 17 for stationary housing or architectural feature 18 that other electronic devices are installed.For example, architectural feature 18 can be buckle, solid cylinder or cylinder with holes etc.
As mentioned above, in the method for making according to an embodiment of the invention housing, owing to having adopted an imprint process to replace injection molding process, so formed housing has the gross thickness of attenuate, for example can reach 1.2mm or lower, thereby improve the competitiveness in thinning trend.In addition, method of the present invention has reduced the manufacturing cost of housing, has given simultaneously housing beautiful appearance.
In an embodiment of the present invention, in injection molding process shown in Figure 9, can make the formed second layer 17 cover the side of the first film layer 13.Particularly, as shown in figure 10, the second layer 17 not only is formed on the surface of the first film layer 13, but also extends to such an extent that cover the first film layer 13 and (also have color layers 16 and other additional layers, side if any).Like this, in the time of can preventing that the user from opening housing, nail is the sur-face peeling of the first film layer 13 from the second layer 17, thereby guaranteed the close contact between the first film layer 13 and the second layer 17.
In the embodiment shown in fig. 5, described impression can be undertaken by the first film layer 13 being pressed to template 10.In another embodiment of the present invention, can carry out imprint process by template being pressed to the first film layer.Particularly, as shown in figure 11, the first film layer 13 ' can be arranged on for example smooth table top 20, and curable resin 12 ' be coated in the first film layer 13 ' the surface on.Then, with mould 10 ' press to curable resin 12 '.Can be identical with the step that reference Fig. 3-4 and 6-9 describe according to other steps of the method for the manufacturing housing of this embodiment.
As mentioned above, housing can be with the cost manufacturing that reduces according to an embodiment of the invention, and has the thickness of attenuate.Owing to having formed pattern in color layers, thus visually can see pattern attractive in appearance, and still give smooth sensation when touching.And transparent resin pattern 15 has played the effect of similar magnifying glass, so visually pattern is exaggerated and deepens, and in fact housing has very thin thickness.Like this, in the attenuate thickness of shell, guaranteed the third dimension of shell patterns, made housing more attractive in appearance.
Although not shown, one embodiment of the invention also provides a kind of device, it comprises the housing of making according to foregoing method.This device includes but not limited to mobile phone, flat-panel monitor, tablet PC, digital multimedia player, personal digital assistant, electric paper book etc.
Although the above is with reference to the specific demonstration of one exemplary embodiment and the present invention has been described, but it will be understood by those skilled in the art that thought of the present invention and the scope that to carry out the various changes on form and details and not depart from claims and equivalent definition thereof.

Claims (17)

1. method of making housing comprises:
Utilize curable resin to form raised design on the surface of the first rete by mould pressing process; And
Form the second shell layer on the described surface of described the first rete and described raised design by injection molding process.
2. the method for claim 1, wherein said mould pressing process comprises:
One template is provided, is formed with recessed pattern on a surface of described template;
Curable resin is instilled in the female pattern;
With described the first film lamination on the described surface of described template, thereby form the raised design of curable resin on the described surface of described the first rete; And
Solidify described curable resin.
3. the method for claim 1, wherein said mould pressing process comprises:
Described the first rete is arranged on the flat surfaces of a substrate;
Form curable resin layer on the surface of described the first rete;
Impress described curable resin layer with the template with recessed pattern, thereby form the raised design of described curable resin on the described surface of described the first rete; And
Solidify described curable resin.
4. the method for claim 1 also comprises:
After described mould pressing process and before described injection molding process, form color layers on the described surface of described the first rete and described raised design.
5. method as claimed in claim 4 also comprises:
Form protective layer on described color layers; And
Form adhesive linkage on described protective layer.
6. the method for claim 1 also comprises:
Before described injection molding process, thereby being carried out thermoforming process, described the first rete with described raised design make it have three-dimensional shape; And
Thereby the edge that cuts described the first rete forms the required shape of described housing.
7. the method for claim 1, wherein said the first rete has the thickness between 0.05mm to 0.6mm.
8. method as claimed in claim 7, wherein said the first rete has the thickness between 0.1mm to 0.4mm.
9. the method for claim 1, wherein said curable resin are a kind of in ultraviolet curable resin and heat reactive resin,
Wherein said the first rete is formed by one of PET, PC, PMMA and ABS,
Wherein said the first rete and described raised design are transparent, and
Has the architectural feature for stationary housing or installing device on the surface opposite with described the first rete of wherein said the second shell layer.
10. housing comprises:
The first rete;
Raised design is formed on the surface of described the first rete; And
The second shell layer is formed on the described surface and described raised design of described the first rete,
Described raised design on wherein said the first rete forms by mould pressing process.
11. housing as claimed in claim 10, wherein said the first rete has the thickness between 0.05mm to 0.6mm.
12. housing as claimed in claim 11, wherein said the first rete has the thickness between 0.1mm to 0.4mm.
13. housing as claimed in claim 10 also comprises:
Color layers is formed on the described surface of described the first rete and described raised design and below described the second shell layer.
14. housing as claimed in claim 13 also comprises:
Protective layer is formed on described color layers; And
Adhesive linkage is formed between described color layers and described the second shell layer.
15. housing as claimed in claim 10, the side surface of wherein said the first rete is coated by described the second shell layer.
16. housing as claimed in claim 10, wherein said curable resin are a kind of in ultraviolet curable resin and heat reactive resin,
Wherein said the first rete is formed by one of PET, PC, PMMA and ABS,
Wherein said the first rete and described raised design are transparent, and
Has the architectural feature for stationary housing or installing device on the surface opposite with described the first rete of wherein said the second shell layer.
17. a device comprises the housing that method claimed in claim 1 is made.
CN201110388447.7A 2011-11-29 2011-11-29 Housing and manufacture method thereof, comprise the device of this housing Active CN103128976B (en)

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CN105599315A (en) * 2016-02-18 2016-05-25 东莞市正爱实业有限公司 Manufacturing method for intelligent tableware
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CN110253981A (en) * 2019-06-28 2019-09-20 Oppo(重庆)智能科技有限公司 The shell and its manufacturing method of electronic device
CN111343805A (en) * 2020-04-08 2020-06-26 广州三星通信技术研究有限公司 Electronic device and housing structure
CN114311866A (en) * 2020-10-09 2022-04-12 Oppo广东移动通信有限公司 Shell of electronic equipment, preparation method of shell, preparation method of composite board and electronic equipment

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CN111343805A (en) * 2020-04-08 2020-06-26 广州三星通信技术研究有限公司 Electronic device and housing structure
CN114311866A (en) * 2020-10-09 2022-04-12 Oppo广东移动通信有限公司 Shell of electronic equipment, preparation method of shell, preparation method of composite board and electronic equipment

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