CN103128976B - Housing and manufacture method thereof, comprise the device of this housing - Google Patents

Housing and manufacture method thereof, comprise the device of this housing Download PDF

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Publication number
CN103128976B
CN103128976B CN201110388447.7A CN201110388447A CN103128976B CN 103128976 B CN103128976 B CN 103128976B CN 201110388447 A CN201110388447 A CN 201110388447A CN 103128976 B CN103128976 B CN 103128976B
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rete
housing
curable resin
raised design
layer
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CN103128976A (en
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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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  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a kind of housing and manufacture method thereof.The method of this manufacture housing comprises: utilize curable resin to form raised design on the surface of the first rete by mould pressing process; And on the described surface and described raised design of described first rete, form the second shell layer by injection molding process.Manufacture method of the present invention can produce the housing with thinning thickness with the cost reduced, and this housing still maintains pattern attractive in appearance.

Description

Housing and manufacture method thereof, comprise the device of this housing
Technical field
The present invention relates to a kind of housing, manufacture the method for this housing and comprise the device of this housing, more specifically, relate to a kind of there is thinning thickness housing, manufacture the method for this housing and comprise the device of this housing.
Background technology
Frivolous and attractive in appearance be two large key factors of design of electronic products always.With regard to frivolous, for mobile phone, the thickness of smart mobile phone has been as thin as 8.49 millimeters, and regular handset reaches the thinnest record of 5.9 millimeters especially.Under this form, except the integrated level raising of the electronic device of interior of mobile phone, the thinning of handset shell also becomes important.In addition, housing is also the key factor that Cell Phone Design is attractive in appearance.Such as on the battery cover housing at mobile phone front housing and the back side, various pattern can be formed, increase aesthetic feeling to attract consumer.
Here describe housing for mobile phone and below, 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, interface between ground floor 1 and the second layer 2 is formed with pattern P, and the surface contrary with ground floor 1 of the second layer 2 can be formed with the architectural feature 3 for mounting electronic device such as printed circuit board (PCB).Ground floor 1 is transparent, and the second layer 2 is opaque, and pattern P can be recessed pattern or raised design.Like this, user can observe the pattern P on housing, and when touching, surface of shell is smooth.
Conventional housing is formed by twice injection molding process.Specifically, ground floor 1 and the second layer 2 can be formed respectively by twice injection molding process, then ground floor 1 and the second layer 2 are bonded together; Or first form one of ground floor 1 and the second layer 2 by injection molding process, then on one of described, utilize injection molding process to form another layer.Owing to have employed twice injection molding process, the thickness of conventional housing is usually more than 1.8 millimeters, larger on the impact of device gross thickness.And because consume a large amount of case material, and need at least two injection forming molds, thus the manufacturing cost of conventional housing is higher.
Therefore, need a kind of housing and manufacture method thereof of novelty, it is one or more that it can overcome in above-mentioned defect, or can have other advantages one or more or feature.
Should be understood that above description only for understanding background of the present invention, thus may comprise the information not forming prior art.
Summary of the invention
One aspect of the present invention is to provide a kind of housing, and it has thinning thickness.
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 manufacturing described housing.
According to the present invention one one exemplary embodiment, a kind of method manufacturing housing can comprise: utilize curable resin to form raised design on the surface of the first rete by mould pressing process; And on the described surface and described raised design of described first rete, form the second shell layer by injection molding process.
In an exemplary embodiment, described mould pressing process can comprise: provide a template, and one of described template is formed with recessed pattern on the surface; Curable resin is instilled in the female pattern; Described first rete is pressed on the described surface of described template, thus forms the raised design of curable resin on the described surface of described first rete; And solidify described curable resin.
In an exemplary embodiment, described mould pressing process can comprise: be arranged on the flat surfaces of a substrate by described first rete; The surface of described first rete forms curable resin layer; Impress described curable resin layer by the template with recessed pattern, thus form the raised design of described curable resin on the described surface of described first rete; And solidify described curable resin.
In an exemplary embodiment, the method for described manufacture housing also can comprise: after described mould pressing process and before described injection molding process, and the described surface and described raised design of described first rete form color layers.
In an exemplary embodiment, the method for described manufacture housing also can comprise: in described color layers, form protective layer; And adhesive linkage is formed on described protective layer.
In an exemplary embodiment, the method for described manufacture housing also can comprise: before described injection molding process, and described first rete with described raised design is carried out to thermoforming process thus makes it have three-dimensional shape; And cut the edge of described first rete thus the shape formed needed for described housing.
In an exemplary embodiment, described first rete can have the thickness between 0.05mm to 0.6mm, the thickness between preferred 0.1mm to 0.4mm.
In an exemplary embodiment, described curable resin can be the one in ultraviolet curable resin and heat reactive resin; Described first rete can be formed by one of PET, PC, PMMA and ABS; Described first rete and described raised design can be transparent, and the surface contrary with described first rete of described second shell layer can have the architectural feature of installing for stationary housing or device.
According to another one exemplary embodiment of the present invention, a kind of housing can comprise: the first rete; Raised design, is formed on the surface of described first rete; And second shell layer, on the described surface being formed in described first rete and described raised design, the described raised design on wherein said first rete is formed by mould pressing process.
In an exemplary embodiment, described first rete can have the thickness between 0.05mm to 0.6mm, preferably, and the thickness between 0.1mm to 0.4mm.
In an exemplary embodiment, described housing also can comprise: color layers, to be formed on the described surface of described first rete and described raised design and below described second shell layer.
In an exemplary embodiment, described housing also can comprise: protective layer, is formed in described color layers; And adhesive linkage, be formed between described color layers and described second shell layer.
In an exemplary embodiment, the side surface of described first rete can be coated by described second shell layer.
In an exemplary embodiment, described curable resin can be the one in ultraviolet curable resin and heat reactive resin; Described first rete can be formed by one of PET, PC, PMMA and ABS; Described first rete and described raised design can be transparent; And the architectural feature that the surface contrary with described first rete of described second shell layer can have for stationary housing or installing device.
According to the another one exemplary embodiment of the present invention, a kind of device comprises the housing manufactured according to foregoing method.
Accompanying drawing explanation
Describe its one exemplary embodiment in detail by referring to accompanying drawing, above and other features and advantages of the present invention will become more obvious, in accompanying drawing:
Fig. 1 is schematic cross sectional views, and conventional housing is shown;
Fig. 2 is schematic cross sectional views, and housing is according to an embodiment of the invention shown;
Fig. 3,4,5,6,7,8 and 9 is schematic cross sectional views, and each interstage of the method manufacturing housing is according to an embodiment of the invention shown;
Figure 10 is zoomed-in view, and the end of the housing shown in Fig. 9 is shown; And
Figure 11 is schematic cross sectional views, and an interstage of the method manufacturing housing is according to another embodiment of the present invention shown.
Detailed description of the invention
Describe one exemplary embodiment of the present invention below with reference to accompanying drawings in detail.Accompanying drawing is only schematic diagram, and does not draw in proportion.
Fig. 2 is schematic cross sectional views, and housing is according to an embodiment of the invention shown; Fig. 3,4,5,6,7,8 and 9 is schematic cross sectional views, and each interstage of the method manufacturing housing is according to an embodiment of the invention shown.
As shown in Figure 2, housing comprise the first film layer 13, the raised design 15 be formed on the surface of the first film layer 13, the second layer 17 that covers the surface of the first film layer 13 and the color layers 16 of raised design 15 and be formed in color layers 16.
The first film layer 13 can be transparent membrane.Such as, the first film layer 13 can be the transparent membrane 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.To be understood by description below, the thickness of the first film layer 13 is not limited thereto, and such as, 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, such as, formed by the one in ultraviolet (UV) cured resin and heat reactive resin.Raised design 15 can have the height of such as 0.1-0.3mm, such as, be that 0.15mm is high, and raised design 15 can have various section shape and flat shape.Raised design 15 also can be transparent.
Alternatively, color layers 16 can be formed in and have on the first film layer 13 of raised design 15.Color layers 16 can provide the color needed for housing.In one embodiment, color layers 16 can be omitted.
The second layer 17 can be formed in color layers 16.The second layer 17 can have the architectural feature 18 be integrally formed, architectural feature 18 can be used for the fixing of housing or for mounting electronic device on housing.Such as, architectural feature 18 can be buckle, solid cylinder or cylinder etc. with holes.The second layer 17 can be opaque.
Although not shown, extra layer can also be formed between color layers 16 and the second layer 17.Such as, color layers 16 can be formed with protective layer not to be damaged in subsequent technique to protect color layers 16.Again such as, adhesive linkage can be formed with on the protection layer to promote the bonding with the second layer 17.Should be understood that the example of additional layer is not limited thereto.
Referring to Fig. 3,4,5,6,7,8 and 9, the method manufacturing housing is according to an embodiment of the invention described.
As shown in Figure 3, template 10 is provided.The surface of template 10 can be formed with recessed pattern 11.Recessed pattern 11 can have various section shape and flat shape, and is not limited to the shape shown in Fig. 3.Recessed pattern 11 can have the degree of depth of such as 0.1-0.3mm, such as, be that 0.15mm is dark.Template 10 such as can be made up of 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 at least fills up recessed pattern 11.Curable resin 12 can be such as UV cured resin or heat reactive resin, but is not limited thereto.Curable resin 12 can be transparent.
Then, with reference to Fig. 5, the first film layer 13 can being placed in instils has in the template 10 of curable resin 12, and is pressed on mould 10 by the first film layer 13 by rigid plate 14.Rigid plate 14 can press to opposite side from the side of the first film layer 13 obliquely, thus 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 be stamped is cured, thus forms the raised design 15 corresponding to recessed pattern 11 on the surface of the first film layer 13.The solidification of curable resin 12 can be undertaken by applying ultraviolet or heat.In one embodiment, described solidification can be carried out before removal mould 10, so that curable resin 12 is converted into partly solidified state, then removed mould 10, and proceeded solidification so that curable resin 12 is converted into complete solid state.At this in another embodiment, described solidification can be carried out after removal mould 10, and curable resin 12 is converted into complete solid state.Like this, the structure shown in Fig. 6 is just obtained.
As previously mentioned, in an embodiment of the present invention, raised design is formed by the surface that is stamped in the first film layer 13.Because have employed the injection molding process of imprint process instead of routine, so the first film layer 13 can have thinning thickness.When adopting conventional injection molding process, the thickness of the ground floor 1 shown in Fig. 1 is greater than 0.6mm usually.When being low to moderate 0.6mm, injection molding process has very low yield.0.1-0.4mm is the injection molding process thickness that can not reach especially.And in an embodiment of the present invention, owing to have employed imprint process, so the first film layer 13 can have the thickness of below 0.6mm, the such as thickness of 0.05-0.6mm scope.When the thickness of the first film layer 13 is reduced to 0.05mm or is following, the yield of imprint process is lower.In the experiment of inventor, the first film layer 13 of 0.1-0.4mm thickness range such as 0.125mm thickness can be adopted to complete imprint process with very high yield.It is appreciated of course that the first film layer 13 also can have the thickness of more than 0.6mm.
In an embodiment of the present invention, owing to have employed 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 significantly can reduce manufacturing cost.And, because the first film layer 13 has thinning thickness, therefore also can material cost be reduced.
Next, continue, with reference to Fig. 7, such as color layers 16 to be formed on the first film layer 13 being formed with raised design 15.Color layers 16 can give the color needed for housing.In one embodiment, color layers 16 also can be omitted, and therefore housing is by the color of the performance layer such as second layer 17 below.
Although not shown, color layers 16 can also form extra layer.Such as, protective layer can be formed be not damaged during subsequent technique to protect color layers 16 in color layers 16, form reflecting layer to improve the glistening intensity of housing, and form adhesive linkage to promote the cohesive etc. between the follow-up second layer 17.
In some applications, housing may have even shape; And in other application, housing may have three-dimensional shape.When needs three-dimensional shape, technique can be formed to produce required three-dimensional shape to housing.Such as, as shown in Figure 8, heat forming technology can be carried out to form general U-shape structure to resulting structures, thus the battery cover of such as mobile phone can be used as.
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, can will have three-dimensional shape (or in certain embodiments, do not adopt heat forming technology and still for general plane two-dimensional shapes) resulting structures be placed in injection forming mold and carry out injection molding process, thus form the second layer 17 in color layers 16.As previously mentioned, owing to have employed injection molding process, so the second layer 17 can have the thickness larger than ground floor 13, thus provide the rigidity needed for housing.The second layer 17 can be formed by such as ABS, PC etc.In this injection molding process, can form on the surface of the second layer 17 for stationary housing or the architectural feature 18 of installing other electronic devices.Such as, architectural feature 18 can be buckle, solid cylinder or cylinder etc. with holes.
As mentioned above, manufacturing in the method for housing according to an embodiment of the invention, replacing injection molding process, so the housing formed has thinning gross thickness owing to have employed an imprint process, such as can reach 1.2mm or lower, thus improve the competitiveness in thinning trend.In addition, method of the present invention reduces the manufacturing cost of housing, imparts the appearance that housing is beautiful simultaneously.
In an embodiment of the present invention, in the injection molding process shown in Fig. 9, the formed second layer 17 can be made to cover the side of the first film layer 13.Particularly, as shown in Figure 10, the second layer 17 is not only formed on the surface of the first film layer 13, but also extends cover the first film layer 13 (color layers 16 and other additional layers in addition, side if any).Like this, when can prevent user from opening housing, nail by the sur-face peeling of the first film layer 13 from the second layer 17, thus ensure that 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 an alternative embodiment of the invention, imprint process can be carried out by template being pressed to the first film layer.Specifically, as shown in figure 11, the first film layer 13 ' can be arranged on such as smooth table top 20, and curable resin 12 ' is coated on the surface of the first film layer 13 '.Then, mould 10 ' is pressed to curable resin 12 '.Other steps according to the method for the manufacture housing of this embodiment can with identical with the step that 6-9 describes with reference to Fig. 3-4.
As mentioned above, housing with the cost manufacture reduced, and can have thinning thickness according to an embodiment of the invention.Owing to defining pattern in color layers, so visually pattern attractive in appearance can be seen, and still give smooth sensation when touching.And transparent resin pattern 15 serves the effect of similar magnifying glass, so visually pattern is exaggerated and deepens, and in fact housing has very thin thickness.Like this, while thinning thickness of shell, ensure that the third dimension of shell patterns, make housing more attractive in appearance.
Although not shown, one embodiment of the invention also provides a kind of device, and it comprises the housing manufactured 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 above with reference to the specific display of one exemplary embodiment with describe the present invention, but it will be understood by those skilled in the art that the various change that can carry out in form and details and do not depart from thought of the present invention and the scope of claims and equivalent definition thereof.

Claims (17)

1. manufacture a method for housing, comprising:
By one-step mould technique on the surface of the first rete, utilize surface be formed recessed pattern template, curable resin is formed raised design; And
On the described surface and described raised design of described first rete, form the second shell layer by injection molding process, wherein said second shell layer has even shape.
2. the method for claim 1, wherein said mould pressing process comprises:
Curable resin is instilled in the female pattern of described template;
Described first rete is pressed on the described surface of described template, thus forms the raised design of curable resin on the described surface of described first rete; And
Solidify described curable resin.
3. the method for claim 1, wherein said mould pressing process comprises:
Described first rete is arranged on the flat surfaces of a substrate;
The surface of described first rete forms curable resin layer;
Impress described curable resin layer by the template with recessed pattern, thus form the raised design of described curable resin on the described surface of described 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, the described surface and described raised design of described first rete form color layers.
5. method as claimed in claim 4, also comprises:
Described color layers forms protective layer; And
Described protective layer forms adhesive linkage.
6. the method for claim 1, also comprises:
Before described injection molding process, described first rete with described raised design is carried out to thermoforming process thus makes it have three-dimensional shape; And
Cut the edge of described first rete thus the shape formed needed for described housing.
7. the method for claim 1, wherein said first rete has the thickness between 0.05mm to 0.6mm.
8. method as claimed in claim 7, wherein said first rete has the thickness between 0.1mm to 0.4mm.
9. the method for claim 1, wherein said curable resin is the one in ultraviolet curable resin and heat reactive resin,
Wherein said first rete is formed by one of PET, PC, PMMA and ABS,
Wherein said first rete and described raised design are transparent, and
The surface contrary with described first rete of wherein said second shell layer has the architectural feature for stationary housing or installing device.
10. a housing, comprising:
First rete;
Raised design, is formed on the surface of described first rete; And
Second shell layer, on the described surface being formed in described first rete and described raised design, wherein said second shell layer has even shape,
Wherein said raised design be on described first rete by one-step mould technique, utilize surface be formed recessed pattern template, formed by curable resin.
11. housings as claimed in claim 10, wherein said first rete has the thickness between 0.05mm to 0.6mm.
12. housings as claimed in claim 11, wherein said first rete has the thickness between 0.1mm to 0.4mm.
13. housings as claimed in claim 10, also comprise:
Color layers, to be formed on the described surface of described first rete and described raised design and below described second shell layer.
14. housings as claimed in claim 13, also comprise:
Protective layer, is formed in described color layers; And
Adhesive linkage, is formed between described color layers and described second shell layer.
15. housings as claimed in claim 10, the side of wherein said first rete is coated by described second shell layer.
16. housings as claimed in claim 10, wherein said curable resin is the one in ultraviolet curable resin and heat reactive resin,
Wherein said first rete is formed by one of PET, PC, PMMA and ABS,
Wherein said first rete and described raised design are transparent, and
The surface of described dorsad first rete of wherein said second shell layer has the architectural feature for stationary housing or installing device.
17. 1 kinds of devices, comprise the housing that method according to claim 1 manufactures.
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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