CN110267477A - Housing unit and preparation method thereof and electronic equipment - Google Patents
Housing unit and preparation method thereof and electronic equipment Download PDFInfo
- Publication number
- CN110267477A CN110267477A CN201910568835.XA CN201910568835A CN110267477A CN 110267477 A CN110267477 A CN 110267477A CN 201910568835 A CN201910568835 A CN 201910568835A CN 110267477 A CN110267477 A CN 110267477A
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- China
- Prior art keywords
- film layer
- substratum transparent
- soft film
- housing unit
- shell substrate
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- 238000000034 method Methods 0.000 claims abstract description 74
- 239000000758 substrate Substances 0.000 claims abstract description 72
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- 239000003292 glue Substances 0.000 claims description 18
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- 238000005452 bending Methods 0.000 claims description 12
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 9
- 238000010023 transfer printing Methods 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 5
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- 239000012943 hotmelt Substances 0.000 claims description 4
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- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- -1 ultraviolet light Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
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- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
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- 229910021529 ammonia Inorganic materials 0.000 claims 1
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- 238000003825 pressing Methods 0.000 claims 1
- 238000007514 turning Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 108
- 238000010586 diagram Methods 0.000 description 15
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- 238000005266 casting Methods 0.000 description 6
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
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- 239000004743 Polypropylene Substances 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910009815 Ti3O5 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
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- 238000001704 evaporation Methods 0.000 description 1
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- 210000004209 hair Anatomy 0.000 description 1
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- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0243—Mechanical details of casings for decorative purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
This application provides housing unit method and preparation method thereof and electronic equipments, this method comprises: forming substratum transparent on a surface of soft film layer, the dynamic friction coefficient on surface of the substratum transparent far from the soft film layer is less than 1.0；The substratum transparent is fitted on the inner surface of shell substrate, and the first curing process is carried out to the substratum transparent, it is bonded in the soft film layer on the shell substrate by the substratum transparent, the pulling capacity of the substratum transparent by first curing process is greater than or equal to 16 Ns/inch.This method can form fold to avoid in positions such as the turnings of shell substrate, and more preferably, user experience is more preferable for the appearance for the housing unit that processing yield is greatly improved, and obtained.
Description
Technical field
The present invention relates to technical field of electronic equipment, specifically, being related to housing unit and preparation method thereof and electronic equipment.
Background technique
Casting of electronic device pastes decorating film scheme at present, usually pastes OCA optical adhesive film at the PET decorative membrance back side, leads to
After crossing CCD positioning, PET decorative membrance is bonded with casting of electronic device with the mode of vacuum pressed, finally realizes electronic equipment
Gorgeous appearance and durable reliability.But technique in the related technology can only realize the electronic equipment of plane or small radian
Shell is bonded decorating film, when battery cover edge has big radian curved surface, since quadrangle radian is excessive, easily generates fold, leads
Cause fitting bad.
Thus, the relevant technologies of casting of electronic device patch decorating film still have much room for improvement at present.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of simple, convenient, and can be realized big radian application of a surface decorating film prepares housing unit
Method.
In the one aspect of the application, this application provides a kind of methods for preparing housing unit.According to the reality of the application
Example is applied, this method comprises: forming substratum transparent on a surface of soft film layer, the substratum transparent is far from the soft film
The dynamic friction coefficient on the surface of layer is less than 1.0；Exterior membrane is formed on the surface of the soft film layer far from the substratum transparent
Layer；The substratum transparent is fitted on the inner surface of shell substrate, and the first curing process is carried out to the substratum transparent, made
The soft film layer is bonded on the shell substrate by the substratum transparent, by the transparent adhesive tape of first curing process
The pulling capacity of layer is greater than or equal to 16 Ns/inch.In this method, the dynamic friction coefficient on substratum transparent surface illustrates it less than 1.0
Initial adhesion is poor or does not have initial adhesion, in the initial stage of fitting process, substratum transparent and shell substrate it
Between cohesive force very little or no cohesive force, thus soft film layer during fitting will not at once with shell substrate bond,
It can make soft film layer is smooth to be attached on shell substrate by the tensile deformation performance of soft film layer during fitting,
Even if shell substrate has the biggish curved surface of radian or other labyrinths and shape, can also be to avoid turning in shell substrate
The positions such as angle form fold, and more preferably, user experience is more for the appearance for the housing unit that processing yield is greatly improved, and obtained
It is good.
In the another aspect of the application, this application provides a kind of housing units.According to an embodiment of the present application, the shell
Component is prepared by mentioned-above method.It is higher that the housing unit prepares yield, even if larger with radian
Curved surface or other labyrinths and when shape, soft film layer and appearance at the turning of housing unit, turnover and crossover position
Diaphragm can be smooth and the fitting of shell substrate, will not lead to the problem of that the fitting such as fold is bad, and housing unit prepares yield
Height, at low cost, appearance is good.
At the another aspect of the application, this application provides a kind of housing units.According to an embodiment of the present application, the shell
Component includes: shell substrate, and the shell substrate includes a bottom surface, and at least one to be connected with the outer edge of the bottom surface
A side wall, the bending angle between the side wall and the bottom surface are greater than 60 degree；Soft film layer, the soft film layer pass through transparent adhesive tape
Layer is bonded on the inner surface of the shell substrate；Appearance film layer, the appearance membrane layer setting are separate in the soft film layer
On the surface of the shell substrate.Although the bending angle in the housing unit between the side wall and bottom surface of shell substrate is greater than 60
Degree, what soft film layer and appearance film layer can be secured and smooth is fitted on shell substrate, at the crossover position of side wall and bottom surface
And four corners do not have the bad presence such as fold, appearance is good, bent relative to small radian is only able to achieve in the related technology
The decorating film in face is bonded, and the housing unit of the application realizes the appearance film layer patch of big radian curved surface and labyrinth and shape
It closes, and easily prepared, yield is high, at low cost.
At the another aspect of the application, this application provides a kind of electronic equipment.According to an embodiment of the present application, the electronics
Equipment includes: mentioned-above housing unit, and accommodation space is limited in the housing unit, soft in the housing unit
Film layer is arranged towards the inside of the electronic equipment；Display screen component, the display screen component are arranged in the accommodation space.
The casting of electronic device can form the biggish curved surface of radian or other complicated structures and shape with housing unit, while can
To realize bright and colourful appearance by the method for being simply bonded decorating film, meet diversification of the user to electronic equipment appearance
It is required that improving user experience.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for preparing housing unit of the application one embodiment.
Fig. 2 is the structural schematic diagram of the housing unit of the application one embodiment.
Fig. 3 is in Fig. 2 along the schematic diagram of the section structure of A-A ' line.
Fig. 4 is the schematic diagram of the process of the formation substratum transparent of the application one embodiment.
Fig. 5 is the structural schematic diagram of the housing unit of the application another embodiment.
Fig. 6 is the structural schematic diagram of the shell substrate of the application one embodiment.
Fig. 7 is the structural schematic diagram of the electronic equipment of the application one embodiment.
Fig. 8 is the cut-away section structural schematic diagram of the housing unit of the embodiment of the present application 1.
Fig. 9 is the cut-away section structural schematic diagram of the housing unit of the application comparative example 1.
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to text in the art
It offers described technology or conditions or is carried out according to product description.Reagents or instruments used without specified manufacturer,
For can be with conventional products that are commercially available.
In the one aspect of the application, this application provides a kind of methods for preparing housing unit.According to the reality of the application
Example is applied, referring to FIG. 1, FIG. 2 and FIG. 3, this method comprises: substratum transparent 20 is formed on a surface of soft film layer 30, it is described
The dynamic friction coefficient on surface of the substratum transparent far from the soft film layer less than 1.0 (it is specific such as 0.9,0.8,0.7,0.6,0.5,
0.4,0.3,0.2,0.1 etc.)；Appearance film layer 40 is formed on the surface of the soft film layer 30 far from the substratum transparent 20；
The substratum transparent 20 is fitted on the inner surface of shell substrate 10, and the substratum transparent 20 is carried out at the first solidification
Reason is bonded in the soft film layer 30 on the shell substrate 10 by the substratum transparent 20, by first solidification
It is (specific such as 16 Ns/inch, 18 Ns/inch, 20 Ns/English that the pulling capacity of the substratum transparent of processing is greater than or equal to 16 Ns/inch
Very little, 22 Ns/inch, 25 Ns/inch, 26 Ns/inch, 27 Ns/inch, 29 Ns/inch, 30 Ns/inch, 32 Ns/inch, 35
Ox/inch, 38 Ns/inch etc.), it can specifically be greater than or equal to 30 Ns/inch.In this method, the surface of substratum transparent
Dynamic friction coefficient illustrates that its initial adhesion is poor or does not have initial adhesion less than 1.0, in the initial rank of fitting process
Section, cohesive force very little or no cohesive force between substratum transparent and shell substrate, thus soft film layer may be implemented it is larger
The stretching of range or compressive deformation, and as the solidification cohesive force of substratum transparent gradually increases, it is soft in obtained housing unit
Film layer can be firmly combined with shell substrate, meet the requirement of housing unit, thus even if shell substrate have radian compared with
Big curved surface or other complicated shapes and structure still can form fold to avoid in positions such as the turnings of shell substrate,
And then the housing unit of the shape with big radian curved surface or complexity and structure can be made real by simple attaching process
Existing bright and colourful appearance, meets the esthetic requirement of user, improves user experience.
Specifically, the elongation percentage of the soft film layer can for 150%~300% (such as 150%, 160%, 170%,
180%, 190%, 200%, 210%, 220%, 230%, 240%, 250%, 260%, 270%, 280%, 290%, 300%
Deng).The stretcher strain ability of soft film layer is stronger as a result, may be adapted to be fitted in big radian curved surface or other complicated knots
On structure and the shell substrate of shape, fold can be avoided bad by deformability, improve the appearance and system of housing unit
Standby yield.Specifically, the thickness of the soft film layer can for 25~150 microns (such as 25 microns, 30 microns, 35 microns, it is 40 micro-
Rice, 45 microns, 50 microns, 55 microns, 60 microns, 65 microns, 70 microns, 75 microns, 80 microns, 85 microns, 90 microns, it is 95 micro-
Rice, 100 microns, 105 microns, 110 microns, 115 microns, 120 microns, 125 microns, 130 microns, 135 microns, 140 microns,
145 microns, 150 microns etc.).In the thickness range, while soft film layer can carry appearance film layer well, Neng Gouman
Foot is bonded the requirement of big radian curved surface or other complicated shapes and structure housing substrate, and will not be produced fracture in deformation process,
Crackle equivalent damage guarantees that housing unit has good appearance.
Specifically, the material for forming the soft film layer may include thermoplastic polyurethane, polyvinyl chloride (PVC), thermoplastic
At least one of property elastomer (TPU).Above-mentioned material can satisfy the ductility requirement during fitting, while mechanics as a result,
Performance, light transmittance etc. can satisfy the requirement of casting of electronic device component, and from a wealth of sources, and cost is relatively low.
It is appreciated that the concrete mode for forming substratum transparent in soft film layer can flexible choice according to the actual situation.
Specifically, formed the substratum transparent may include: by molten state glue application on a surface of the soft film layer,
Obtain molten state glue application layer；Cooling treatment is carried out to the molten state glue application layer, obtains the substratum transparent.Into one
Step, molten state glue can be coated with by roll blade coating method, i.e., excessive molten state glue is transferred to continuous fortune
On the soft film layer coiled material turned, and with knife over roll to desired thicknesses of layers, then excessive molten state glue is adjusted
It is in soft film layer coiled material motion process that molten state glue is cooling, solid substratum transparent is formed it into, it then can be by shape
It is wound at the soft film layer coiled material for having substratum transparent, is spare, specific operation process can refer to Fig. 4.It should be noted that the process
Effective reaction process does not occur for middle substratum transparent, i.e. substratum transparent does not have initial adhesive force or initial adhesive force very
It is small, move soft film layer in a big way, tensile deformation etc., thus smooth fitting
On shell substrate, the bad generation such as fold is avoided.
Specifically, the thickness of substratum transparent can be 20~30 microns, it is specific as 20 microns, 21 microns, 22 microns, it is 23 micro-
Rice, 24 microns, 25 microns, 26 microns, 27 microns, 28 microns, 29 microns, 30 microns etc..It, both can be in the thickness range
Guarantee preferable caking property, and will not be blocked up, conducive to the lightening of housing unit.
As long as meeting housing unit it is appreciated that forming substratum transparent material and meeting the low and final caking property of initial adhesion
Requirement, specifically, the material for forming the substratum transparent may include thermoset hot melt glue, optic-solidified adhesive, tide
At least one of curing hot melt adhesive and pressure sensitive adhesive.Thus, it is possible to meet initial adhesion and final caking property well
Requirement, high with preparation process matching, using effect is preferable.More specifically, it includes wet for forming the material of the substratum transparent
Curing reaction type polyurethane hot-melt adhesive (PUR hot melt adhesive), the cured acrylic glue of ultraviolet light, rubber pressure-sensitive adhesive are (as naturally
Rubber pressure-sensitive adhesive and synthetic rubber type pressure sensitive adhesive) and resin pressure sensitive adhesive (such as polyurethane kind pressure sensitive adhesive, polypropylene acid lipid pressure
At least one of quick glue, organic silicon pressure sensitive adhesive etc.).Wherein, PUR hot melt adhesive is with-NCO (isocyanate group) for end group
Hot melt adhesive, melting coated on after soft film surface ,-NCO can with soft film surface micro-moisture or other contain active hydrogen
Compound or moisture in air reaction, formed cross-linked network, gradually increase cohesive force.PUR hot melt adhesive is thermoset hot melt glue,
Irreversible reaction process protect housing unit can always between film layer soft in thickness use process and shell substrate
Secure bond state is held, there is no Problem of Failure, and the initial adhesion of PUR hot melt adhesive is small, and final caking property is preferable, both
It can be good at guaranteeing that soft film layer is smooth to be fitted on shell substrate, it is also possible that shell substrate has in subsequent use
There is preferable caking property, soft film layer and appearance film layer will not fall off easily, have durable reliability, and service life is longer.
It is appreciated that can be formed on surface of the soft film layer far from substratum transparent outer after forming substratum transparent
See film layer.Specific appearance film layer can be according to thinking appearance flexible choice to be achieved, for example, referring to Fig. 5, described in formation
Appearance film layer 40 may include: to form UV transfer printing layer 41 far from the side of the substratum transparent 20 in the soft film layer 30；?
The UV transfer printing layer 41 forms film plating layer 42 far from the side of the substratum transparent 20；In the film plating layer 42 far from described transparent
The side of glue-line 20 forms ink base layer 43.Specifically, certain grain effect may be implemented in UV transfer printing layer, realize more beautiful
The appearance of sight can be carried out by transfer method；And film plating layer can be carried out by physical vapour deposition (PVD) (PVD) method, plated film
Layer can make housing unit realize different color or optical effect, and can may be multilayer for single layer structure, tool
Body can include but is not limited to the different multilayered structure of the refractive index being arranged alternately, and forming material may include TiO2、Ti3O5、
Nb2O5、SiO2And MgF2At least one of；Base ink layer can be formed by the methods of coating, inkjet printing, Ke Yiwei
Housing unit provides certain background color, avoids user from can directly be seen that the inside of shell, and can realize in conjunction with appearance film layer
More colourful appearance.
It is appreciated that the substratum transparent is fitted on the inner surface of shell substrate can be handled by isothermal static pressure into
Capable.Specifically, the soft film layer for being formed with appearance film layer can be cut into and the matched size of shell substrate and shape in advance
Then shape positions soft film layer and housing unit by ccd sensor, later in soft film layer and shell substrate housing
Isolating seal bag is then placed in isothermal static pressure machine, is pressurizeed by liquid medium to soft film layer and shell substrate, specifically
Pressure can for 60~70MPa (it is specific as 60MPa, 61MPa, 62MPa, 63MPa, 64MPa, 65MPa, 66MPa, 67MPa,
68MPa, 69MPa, 70MPa etc.).In the pressure limit, can make the sufficient tensile deformation of soft film layer with and shell
The more smooth fitting of substrate is used in the shell substrate with big radian curved surface or other labyrinths, also can be very
Good avoids the problem that fold.The specific dwell time can for 20-30 minute (specific such as 20 minutes, 21 minutes, 22 minutes,
23 minutes, 24 minutes, 25 minutes), soft film layer and shell substrate are smoothly bonded after pressurizeing as a result, and as the time increases,
The cohesive force of substratum transparent gradually increases, and soft film layer can be made to be securely bonded on shell substrate, obtains attaching effect
Good, goodlooking housing unit.
It is appreciated that substratum transparent can be made to react by the first curing process, cohesive force is gradually increased, this Shen
Please in can be synchronized in isothermal static pressure treatment process and carry out the first curing process, specifically, can will be at the isothermal static pressure
The liquid medium that reason uses is heated, and with being gradually heated up, substratum transparent gradually reacts, and cohesive force gradually increases, as a result, just
Stage beginning soft film layer can move freely, deformation etc. is so that it is smoothly fitted on shell substrate, and then may be used after gradually solidifying
To be securely bonded on shell substrate, effectively prevent during fitting that lead to the problem of fold etc. bad.And the same stepping of the two
Row, can obviously simplify operating procedure.The temperature for the liquid medium that specific isothermal static pressure processing uses can be taken the photograph for 80~90
Family name's degree (such as 80 degrees Celsius, 81 degrees Celsius, 82 degrees Celsius, 83 degrees Celsius, 84 degrees Celsius, 85 degrees Celsius, 86 degrees Celsius, it is 87 Celsius
Degree, 88 degrees Celsius, 89 degrees Celsius, 90 degrees Celsius etc.).Within this temperature range, soft film layer and shell substrate can be made
It preferably fits together, cohesive force is stronger.
It is appreciated that this method can also include: to the substratum transparent by first curing process into
The second curing process of row.During being somebody's turn to do, substratum transparent further occurrence reaction, cohesive force further enhances, can make
Soft film layer and shell substrate are firmly combined in housing unit, not easily to fall off, have durable safety, the service life is longer.
Specifically, second curing process can be no less than 72 hours to stand in air.Should during, substratum transparent can be with
Moisture etc. in air gradually reacts, and forms fine and close cross-linked network, enhances the caking property of substratum transparent, ensure that the steady of product
It is qualitative.
It is appreciated that the appearance of housing unit can be formed directly in soft film layer, such as can be by soft film
Layer dyeing, makes it that predetermined color effect be presented, texture, pattern and other effects can also be formed in soft film layer, in addition, shell group
The appearance of part can also realize by being bonded appearance film layer in soft film layer, therefore, this method can also include:
Before the substratum transparent is fitted on the inner surface of shell substrate, in the table of the soft film layer far from the substratum transparent
Appearance film layer is formed on face.Specifically, forming the appearance film layer may include: in the soft film layer far from the transparent adhesive tape
The side of layer forms UV transfer printing layer；Film plating layer is formed far from the side of the substratum transparent in the UV transfer printing layer；In the plating
Film layer forms ink base layer far from the side of the substratum transparent.UV transfer can specifically be formed by transfer printing process, plated film
Layer can be formed by the methods of physical vapour deposition (PVD) (PVD), chemical vapor deposition, including but not limited to the side such as evaporation, sputtering
Method, and ink base layer can then be formed by the techniques such as printing, spraying.
It is appreciated that the present processes are suitable for the shell substrate with big radian curved surface or have other complexity knots
The shell substrate of structure and shape, for example, referring to Fig. 6, the shell substrate 10 may include a bottom surface 11, and with the bottom
At least one connected side wall 12 of the outer edge in face, the bending angle α between the side wall 12 and the bottom surface 11 are greater than 60 degree (such as
61 degree, 62 degree, 63 degree, 64 degree, 65 degree, 66 degree, 67 degree, 68 degree, 69 degree, 70 degree, 71 degree, 72 degree, 73 degree, 74 degree, 75 degree
Deng).It should be noted that above-mentioned bending angle refers between bottom surface (can be plane, or curved surface) and the tangent line of side wall
Angle maximum value, specifically, bending angle α can be greater than or equal to 70 degree.The present processes can be used for preparing as a result,
Integrated shell component (i.e. battery cover and center are integrally formed), step is simple and convenient to operate, and yield is high, and cost is relatively low.
It is appreciated that shell substrate can have two side walls being oppositely arranged, and side wall can be with the length of shell substrate
The outer edge on side is connected, and certainly, according to the needs of use, shell substrate also can have four side walls being sequentially connected, wherein with
Bending angle between the connected side wall of the outer edge of shell substrate long side and bottom surface can be greater than 60 degree, and with shell substrate short side
The connected side wall and bottom surface of outer edge between bending angle requirements is not particularly limited, can might be less that greater than 60 degree
60 degree.
It is appreciated that in the above method soft film layer high stretch, the full fitting of achievable big curvature form, while not
Fold can be generated, the fitting such as rebound is bad；Substratum transparent tack difference has, it can be achieved that a possibility that soft film layer drawing process
Effect overcomes the higher tack of OCA optical cement, and fitting rear film does not have the problem of mobility；It is wrong by the first solidification
Place, allow substratum transparent gradually to react, with shell substrate complete bond, with second it is cured gradually carry out, the intensity of bonding is gradually
Increase, meets the durable reliability of product；The irreversible reaction principle of substratum transparent ensure that the product later period may heat up
Use environment, the constant characteristic of bonding force, ensure that the stability of product.
In the another aspect of the application, this application provides a kind of housing units.According to an embodiment of the present application, the shell
Component is (structural schematic diagram can refer to Fig. 3 and Fig. 5) being prepared by mentioned-above method.The housing unit prepares good
Rate is higher, though with the biggish curved surface of radian or other labyrinths and when shape, the turning of housing unit, turnover and
Soft film layer and appearance diaphragm can be very good to be bonded with shell substrate at crossover position, and it is bad will not to generate the fitting such as fold
Problem, housing unit prepare yield height, and at low cost, appearance is good.
At the another aspect of the application, this application provides a kind of housing units.According to an embodiment of the present application, referring to figure
1, Fig. 3 and Fig. 6, the housing unit include: shell substrate 10, the shell substrate 10 include a bottom surface 11, and with it is described
At least one connected side wall 12 of the outer edge of bottom surface, the bending angle α between the side wall 12 and the bottom surface 11 are greater than 60 degree
(such as 61 degree, 62 degree, 63 degree, 64 degree, 65 degree, 66 degree, 67 degree, 68 degree, 69 degree, 70 degree, 71 degree, 72 degree, 73 degree, 74 degree, 75 degree
Deng)；Soft film layer 30, the soft film layer 30 are bonded on the inner surface of the shell substrate 10 by substratum transparent 20；Outside
Film layer 40 is seen, the appearance film layer 40 is arranged on surface of the soft film layer 30 far from the shell substrate 10.Although should
Bending angle in housing unit between the side wall and bottom surface of shell substrate is greater than 60 degree, specifically can be soft more than or equal to 70 degree
Film layer and appearance film layer can be secured and smooth be fitted on shell substrate, at the crossover position of side wall and bottom surface and four
Corner does not have the bad presence such as fold, and appearance is good, relative to the decoration for being only able to achieve small radian curved surface in the related technology
The appearance film layer fitting of film fitting, big radian curved surface and labyrinth that the housing unit of the application is realized and shape, and be easy to
Preparation, dose rate is high, at low cost.
At the another aspect of the application, this application provides a kind of electronic equipment.According to an embodiment of the present application, referring to figure
7, which includes: mentioned-above housing unit 100, and accommodation space, the shell are limited in the housing unit 100
Appearance film layer 40 in body component 100 is arranged towards the inside of the electronic equipment；Display screen component 200, the display screen group
Part 200 is arranged in the accommodation space.The casting of electronic device can be formed with housing unit the biggish curved surface of radian and
Other complicated structures and shape, while bright and colourful appearance can be realized by the method for being simply bonded decorating film, it is full
Sufficient user requires the diversification of electronic equipment appearance, improves user experience.
Specifically, the specific type of the electronic equipment is not particularly limited, can for mobile phone (referring to Fig. 7), tablet computer,
Game machine, wearable device etc., and it will be understood by those skilled in the art that in addition to housing unit described above and display
Component etc., the electronic equipment can also include other indispensable structures and component of conventional electronic device, such as mainboard, reservoir
Deng this is no longer going to repeat them.
Embodiments herein is described below in detail.
Embodiment 1
PUR hot melt adhesive is heated to molten state, is unreeled with a thickness of the soft film layer coiled strip of 100 microns of TPU by tractive force,
Using knife over roll, the PUR hot-melt of fused solution is distributed in the soft film layer of TPU in such a way that slit squeezes out, is controlled
Coating thickness is 20-30 microns, and the glue after coating is quickly cooled down and obtains substratum transparent at solid, and finally winding is coiled
Material, this process glue and unreacted, it is 0.5 that the dynamic friction coefficient on the surface of substratum transparent, which is less than,.Then, separate in soft film layer
UV transfer printing layer, PVD film plating layer and ink base layer are sequentially formed on the surface of substratum transparent, then cut out product obtained above
It is cut into shell substrate same size, by CCD positioning housing substrate and product obtained above, isolating seal bag is covered, is put into
Warm static pressure machine is heated to 85 degree ± 5 degree through liquid medium, and moulding pressure is controlled in 60-70mpa, and pressure maintaining is bonded after 20-30 minutes
It completes.Product is taken out later, and PUR hot melt adhesive is gradually reacted at least 72 hours with the moisture in air, forms fine and close cross-linked network
Network enhances the caking property of substratum transparent, obtains housing unit, and schematic diagram is shown in that Fig. 8, Fig. 8 are shown in corresponding diagram 2 along B-B ' line
The schematic diagram of the section structure.Wherein, shell substrate is glass material, including bottom surface and four sides surrounding bottom surface and be connected to each other
Wall, the bending angle between bottom surface and side wall are 70 degree, and the pulling capacity for the housing unit tested is greater than 30 Ns/inch.
Comparative example 1
With embodiment 1, difference is that the material of substratum transparent is OCA optical cement, and the surface of OCA optical cement has higher first
Viscosity, dynamic friction coefficient tend to be infinitely great, and the photo of obtained housing unit is shown in that Fig. 9, Fig. 9 are shown in corresponding diagram 2 along B-B '
The schematic diagram of the section structure of line.
Wherein, dynamic friction coefficient and pulling capacity test measure in the following manner in above-described embodiment and comparative example:
1, dynamic friction coefficient measuring method:
Using FPT-F1 model Test of Friction instrument, 6cm*6cm size, the wool felt measuring head of 200g weight bearing, with survey
Film is tried according to 3mm/s speed relative friction, by tension sensor testing friction power, conversion calculates dynamic friction coefficient μ.
2, drawing force test method:
Housing unit is processed into about 25mm wide, obtained housing unit specimen holder will be processed on lower gripper, according to
Peeling rate 5mm/s speed pulls soft film layer and shell substrate is removed, and obtains stress curve, and integral calculates average pulling capacity number
According to.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (20)
1. a kind of method for preparing housing unit characterized by comprising
Substratum transparent is formed on a surface of soft film layer, surface of the substratum transparent far from the soft film layer is moved
Coefficient of friction is less than 1.0；
The substratum transparent is fitted on the inner surface of shell substrate, and the first curing process is carried out to the substratum transparent,
It is bonded in the soft film layer on the shell substrate by the substratum transparent, by described in first curing process
The pulling capacity of substratum transparent is greater than or equal to 16 Ns/inch.
2. the method according to claim 1, wherein the elongation percentage of the soft film layer be 150%~300%,
The soft film layer with a thickness of 25~150 microns.
3. the method according to claim 1, wherein the material for forming the soft film layer includes thermoplastic poly ammonia
At least one of ester, polyvinyl chloride, thermoplastic elastomer (TPE).
4. the method according to claim 1, wherein forming the substratum transparent and including:
By molten state glue application on a surface of the soft film layer, molten state glue application layer is obtained；
Cooling treatment is carried out to the molten state glue application layer, obtains the substratum transparent.
5. the method according to claim 1, wherein the substratum transparent with a thickness of 20~30 microns.
6. the method according to claim 1, wherein the material for forming the substratum transparent includes thermoset hot melt
At least one of glue, optic-solidified adhesive, the hot melt adhesive of moisture solidification and pressure sensitive adhesive.
7. according to the method described in claim 6, it is characterized in that, the material for forming the substratum transparent includes that moisture-curable is anti-
Answer at least one of the cured acrylic glue of type polyurethane hot melt adhesive, ultraviolet light, rubber pressure-sensitive adhesive and resin pressure sensitive adhesive.
8. the method according to claim 1, wherein described be fitted in the substratum transparent in shell substrate
It is to handle to carry out by isothermal static pressure on surface.
9. being protected the method according to claim 1, wherein the pressure of isothermal static pressure processing is 60~70MPa
Pressing the time is 20-30 minutes.
10. the method according to claim 1, wherein first curing process is by the way that the isothermal is quiet
What the liquid medium heating that pressure processing uses carried out.
11. according to the method described in claim 10, it is characterized in that, the temperature for the liquid medium that isothermal static pressure processing uses
Degree is 80~90 degrees Celsius.
12. the method according to claim 1, wherein further include:
Second curing process is carried out to the substratum transparent by first curing process.
13. according to the method for claim 12, which is characterized in that second curing process includes standing in air not
Less than 72 hours.
14. the method according to claim 1, wherein being fitted in shell substrate by the substratum transparent
Before on surface, further includes:
Appearance film layer is formed on the surface of the soft film layer far from the substratum transparent.
15. according to the method for claim 14, which is characterized in that forming the appearance film layer includes:
UV transfer printing layer is formed far from the side of the substratum transparent in the soft film layer；
Film plating layer is formed far from the side of the substratum transparent in the UV transfer printing layer；
Ink base layer is formed far from the side of the substratum transparent in the film plating layer.
16. the method according to claim 1, wherein the shell substrate include a bottom surface, and with it is described
At least one connected side wall of the outer edge of bottom surface, the bending angle between the side wall and the bottom surface are greater than 60 degree.
17. a kind of housing unit, which is characterized in that be prepared by method described in any one of claim 1-16
's.
18. a kind of housing unit characterized by comprising
Shell substrate, the shell substrate include a bottom surface, and at least one side being connected with the outer edge of the bottom surface
Wall, the bending angle between the side wall and the bottom surface are greater than 60 degree；
Soft film layer, the soft film layer are bonded on the inner surface of the shell substrate by substratum transparent.
19. housing unit according to claim 18, which is characterized in that further include:
Appearance film layer, the appearance membrane layer are arranged on surface of the soft film layer far from the shell substrate.
20. a kind of electronic equipment characterized by comprising
Housing unit described in any one of claim 17~19 limits accommodation space, the shell in the housing unit
Soft film layer in body component is arranged towards the inside of the electronic equipment；
Display screen component, the display screen component are arranged in the accommodation space.
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| CN111263538A (en) * | 2020-03-23 | 2020-06-09 | Oppo广东移动通信有限公司 | Film-coated curved surface shell, manufacturing method thereof, shell of electronic equipment and electronic equipment |
| CN111478100A (en) * | 2020-04-02 | 2020-07-31 | 立讯精密工业（滁州）有限公司 | Electric connector and assembling method thereof |
| CN112235984A (en) * | 2020-10-29 | 2021-01-15 | Oppo广东移动通信有限公司 | Shell, shell preparation method and electronic equipment |
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| CN114407472A (en) * | 2022-01-25 | 2022-04-29 | Oppo广东移动通信有限公司 | Manufacturing method of shell, shell and electronic equipment |
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