CN106455391A - 3C electronic product housing and preparation method thereof - Google Patents
3C electronic product housing and preparation method thereof Download PDFInfo
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- CN106455391A CN106455391A CN201610868230.9A CN201610868230A CN106455391A CN 106455391 A CN106455391 A CN 106455391A CN 201610868230 A CN201610868230 A CN 201610868230A CN 106455391 A CN106455391 A CN 106455391A
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- antenna
- slit
- metal
- electronic product
- hardware
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Classifications
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- 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
- H05K5/04—Metal casings
-
- 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
Abstract
The invention discloses a 3C electronic product housing and a preparation method thereof. The electronic product housing comprises a metal structural member, wherein a plurality of antenna slitting position slits pass through the back surface and the front surface of the metal structural member. The antenna slitting slits are filled with nonconductive pre-injection materials. The back surface of the metal structural member has a secondary injection-molded plastic structure integrated with the pre-injection materials and the metal structural member. According to the invention, a problem is completely eliminated that the antenna slitting positions are exposed to the electronic product metal housing surface, Electronic product metal housing is complete and continuous in appearance and good in metal texture. The production process of the 3C electronic product housing is simple.
Description
Technical field
The present invention relates to a kind of 3C electronic product casing and preparation method thereof.
Background technology
With 3C (Computer, Communication, Consumer Electronics, computer, communication and consumption
Electronics) miniaturization of electronic products, lightening, fashion-orientation, practical growth requirement, the shell of existing electronic product gets more and more
Employing light weight and the high metal material of intensity, such as aluminium alloy, rustless steel, titanium alloy etc., to meet product thickness increasingly
Thin, the intensity more and more higher of whole machine, light weight, texture is outstanding and the demand of rapid heat dissipation.
Although intensity and the texture of electronic product casing can be improved using metal material, due to communication electronics product sky
The problem of line signal shielding, needs making antenna on metalwork to cut position and connect using plastic cement, to solve communication electronics product
Product signal problem, structural member can not keep the appearance completely linking up.
Limited by traditional processing mode, equipment, material, cost, communication electronics resultant metal outer casing antenna is cut simultaneously
The width of position has more than 1.2mm so that the plastic material of filling leaks outside in the appearance of metal shell, and consumer can be bright
Show and see and have obvious feel difference with metal material, significantly reduce the metal-like of housing and the experience effect of consumer,
The appearance of high-end fashion cannot be met but be difficult to eliminate.
Content of the invention
Present invention is primarily targeted at overcoming the deficiencies in the prior art, provide a kind of 3C electronic product casing and its preparation
Method, can be completely eliminated metal shell of electronic product skin antenna and cut the problem that position exposes, realize metal shell of electronic product
Complete appearance links up, and metal-like is strong, and its processing technology is simple.
For achieving the above object, the present invention employs the following technical solutions：
A kind of 3C electronic product casing, including hardware, runs through between the back side of described hardware and front
Offer many strip antenna cutting positions slit, in the slit of described antenna cutting position, be filled with non-conductive pre- injected plastics material, described gold
The back side belonging to structural member has a plastic structure of secondary injection molding, described plastic structure and described pre- injected plastics material and described
Hardware is combined as a whole.
Further：
The width that position slit cut by described antenna is 0.03mm～0.8mm.
The spacing distance that position slit cut by described antenna is more than 0.15mm.
The front of described hardware is formed with the metal surface in addition to the region that position slit cut by described antenna
The anodic oxide coating being formed through anodic oxidation, described pre- injected plastics material is that color and described anodic oxide coating be close or identical material
Material, or be white or black material.
The front of described hardware is integrally coated with the anode oxide film being formed by thermal transfer or class anode oxide film,
Preferably, between the front of described hardware and described anode oxide film or class anode oxide film, there is prime coat.
The front integral plated of described hardware has aluminum membranous layer, described aluminum membranous layer is formed with and is formed through anodic oxidation
Anodic oxide coating it is preferable that there is prime coat between the front of described hardware and described aluminum membranous layer.
A kind of metal blank for making 3C electronic product casing, divides corresponding to antenna at the back side of described metal blank
Offer on the position cutting a slit to extend to and walk glue hole between the back side of described metal blank and front, described antenna cutting
Position slit walks glue hole to carry out to described antenna cutting position slit described in connecting after forming out on described metal blank
Pre- injection it is preferable that described walk glue hole bosom apart from described metal blank more than front 0.2mm.
A kind of preparation method preparing described 3C electronic product casing, comprises the following steps：
Process the antenna cutting position slit running through between the back side and front of metal blank, it is preferred to use cut
Or laser carving technique or CNC technology mode are processed；
Using non-conductive pre- injected plastics material, antenna cutting position slit is carried out with pre- injection, fill antenna cutting position slit；
Carry out quadric injection mould at the back side of metal blank with forming plastic cement structure, described plastic structure and described pre- injection material
Material is combined together with setting the strength unitary of degree, and is combined with metal blank；
Preferably, described metal blank has reinforcement structure, to prevent antenna from cutting the gold cutting off during the slit processing of position
Belong to region deformation or separation comes off；Described reinforcement structure was removed before carrying out quadric injection mould.
Further：
Before carrying out pre- injection, first process to be connected with described antenna cutting position slit at the back side of metal blank and pass through
Logical but walk glue hole not through metal blank；Before carrying out quadric injection mould, processing remove metal blank the back side have described
The part walking glue hole is to expose described antenna cutting position slit；Wherein said walk glue hole process described antenna cutting position slit it
Front processing, or process after processing described antenna cutting position slit.
After carrying out quadric injection mould, further comprising the steps of：
By anode oxidation process, in the front of described hardware in addition to the region that position slit cut by described antenna
Metal surface form anodic oxide coating, wherein said pre- injected plastics material is that color and described anodic oxide coating be close or identical
Material；Or
By caloric transfer printing technology, integrally cover anode oxide film or class anodic oxidation in the front of described hardware
Film is it is preferable that the front surface coated prime coat of first described hardware, then carries out thermal transfer；Or
In the front integral plated aluminum membranous layer of described hardware, then pass through anode oxidation process, in described aluminum membranous layer
Upper form anodic oxide coating it is preferable that the front surface coated prime coat of first described hardware, then plating aluminum membranous layer.
Beneficial effects of the present invention：
3C electronic product casing that the present invention provides and preparation method thereof, is conducive to eliminating metal shell of electronic product surface
The problem that position exposes cut by antenna, so that metal shell of electronic product complete appearance is linked up, metal-like is strong, its processing technology letter
Single, low cost of manufacture and be suitable for scale of mass production, not only effectively meet 3C electronic product structural component exterior quality requirement, simultaneously its
Have the advantages that to be easy to make, inexpensive and practical.Advantages of the present invention embodies in the following areas：
1st, the present invention provide a kind of non-conductive pre- injected plastics material+quadric injection mould material of metalwork+slit be integrally formed shell
Body, achievable 3C electronic product all-metal appearance surface decoration is it is easy to scale of mass production；
2nd, the structure based on the present invention and technique, carries out slit processing and (for example passes through cut or laser carving technique or CNC
Processing), the antenna cutting bit width of communication electronics product casing can be reduced to below 0.40mm from 1.2mm, or even 0.15mm
Hereinafter, traditional processing mode on metal shell overall coherence conforming impact is greatly decreased so as to reach the effect that naked eyes hardly possible is distinguished
Really；
3rd, the structure based on the present invention and technique, can achieve conventional etch process effect, and safety and environmental protection is it is easy to extensive
While volume production, it is to avoid the pollution to environment for the processing technique, technique environmental protection；
4th, using injection molding manner twice, first filling product antenna is cut the tiny slit of position, is made non-conductive pre- note in slit
Moulding material and metal high strength bond, improve Conventional communication electronic metal shell product antenna cutting position problem easy to crack, improve
Processing and manufacturing yield, reduces manufacturing cost；
5th, do not affect the aerial signal of communication electronics product while improving processing and manufacturing yield and improve appearance, fit
Close the metal shell of each class formations such as center, back-cover, ring-type, technique practicality is wide；
6th, overall unification can be realized in product surface by the incrustation mode such as anodic oxidation, PVD, thermal transfer
Metal appearance effect, is completely eliminated the existing metal product outward appearance antenna cutting impact to product appearance for the position, makes product surface real
The metal-like of existing overall coherence；Meet consumer to the practicality of 3C electronic product, fashion, durable demand.
Brief description
Fig. 1 a and 1b illustrates that the embodiment of the present invention carries out CNC preprocessing to hardware crude green body；
Fig. 2 a-2c illustrates that the embodiment of the present invention uses cut, laser laser carving, wire cutting, CNC technology mode in metal
Antenna slit processing is carried out on structural member；
Fig. 3 a and 3b illustrates that the embodiment of the present invention is surface-treated and to slit to the hardware after processing slit
Region carries out being molded to fill slit for the first time；
Fig. 4 a and 4b illustrates on hardware after the completion of first time is molded for the embodiment of the present invention to plastic cement to be arranged
The region of structure carries out CNC processing；
Fig. 5 a and 5b illustrates that the embodiment of the present invention is surface-treated to the hardware of product and is carried out second note
Mould to form the plastic structure in product；
Fig. 6 a and 6b illustrates that the embodiment of the present invention carries out front CNC polish and work(to the product after the completion of second injection
The CNC processing of the energy structure hole position such as side opening such as photographic head, button, power key, removes product front surplus；
Fig. 7 a and 7b illustrates that the embodiment of the present invention is backed with assembling to product and the region of dimension precision requirement carries out finishing
Work, and so that product is separated with excess metal blank；
Fig. 8 a and 8b illustrates that the embodiment of the present invention is polished to product surface, sandblasting is processed, then carried out at incrustation
Reason；
Fig. 9 a-9c illustrates the product shell structure of the embodiment of the present invention, and according to product appearance or process requirements, to product
Product carry out secondary CNC bloom chamfering and the process of two-step anodization.
Specific embodiment
Hereinafter embodiments of the present invention are elaborated.It is emphasized that what the description below was merely exemplary,
Rather than in order to limit the scope of the present invention and its application.
Refering to Fig. 1 to Fig. 9 c, in one embodiment, a kind of 3C electronic product casing, including hardware 1, described
Run through between the back side 102 of hardware 1 and front 101 and offer many strip antenna cutting positions slit 4, position cut by described antenna
It is filled with non-conductive pre- injected plastics material 3, the back side of described hardware 1 has the plastic cement of secondary injection molding in slit 4
Structure 2, described plastic structure 2 is combined as a whole with described pre- injected plastics material 3 and described hardware 1.
In a preferred embodiment, the width that position slit 4 cut by described antenna is 0.03mm～0.8mm.
In a preferred embodiment, the spacing distance that position slit 4 cut by described antenna is more than 0.15mm.
In a preferred embodiment, the front of described hardware 1 is in addition to the region that position slit 4 cut by described antenna
Metal surface on be formed with through anodic oxidation formed anodic oxide coating, it is preferred that described pre- injected plastics material 3 is color and institute
State that anodic oxide coating is close or identical material or white or black material etc..
In a preferred embodiment, the front of described hardware 1 is integrally coated with the anodic oxygen being formed by thermal transfer
Change film or class anode oxide film 5 it is preferable that the front of described hardware 1 and described anode oxide film or class anodic oxidation
There is between film prime coat.
In a preferred embodiment, the front integral plated of described hardware 1 has aluminum membranous layer, shape on described aluminum membranous layer
The anodic oxide coating that Cheng Youjing anodic oxidation is formed is it is preferable that have between the front of described hardware 1 and described aluminum membranous layer
There is prime coat.
Refering to Fig. 1 to Fig. 9 c, a kind of metal blank for making 3C electronic product casing, in the back of the body of described metal blank
Face 102 corresponds to and offers the back side 102 extending to described metal blank and front 101 on the position of antenna cutting position slit 4
Between walk glue hole 6, described antenna cutting position slit 4 connect after forming out on described metal blank described in walk glue hole 6
So that pre- injection is carried out to described antenna cutting position slit 4.In a preferred embodiment, described walk glue hole 6 bosom distance
More than the front 0.2mm of described metal blank.
Refering to Fig. 1 to Fig. 9 c, a kind of preparation method preparing described 3C electronic product casing, comprise the following steps：
The antenna cutting position slit 4 running through is processed between the back side 102 and front 101 of metal blank, it is preferred to use
Cut or laser carving technique or CNC technology mode are processed；
Using non-conductive pre- injected plastics material, antenna cutting position slit 4 is carried out with pre- injection, fill antenna cutting position slit；
Carry out quadric injection mould at the back side of metal blank with forming plastic cement structure, described plastic structure 2 and pre- injected plastics material 3
It is combined together with the strength unitary setting degree, and be combined with metal blank.
In a preferred embodiment, described metal blank has reinforcement structure 7, to prevent the slit processing of antenna cutting position
When cut off metallic region deformation or separate come off；Described reinforcement structure 7 was removed before carrying out quadric injection mould.
In a preferred embodiment, before carrying out pre- injection, first processing at the back side of metal blank can be with described sky
Line is cut position slit and is connected insertion but walk glue hole not through metal blank；Before carrying out quadric injection mould, processing removes metal
The part in glue hole is walked to expose described antenna cutting position slit described in having in the back side of blank；Wherein said walk glue hole processing institute
Process before stating antenna cutting position slit, or process after processing described antenna cutting position slit.
In a preferred embodiment, after carrying out quadric injection mould, the method is further comprising the steps of：
By anode oxidation process, in the front of described hardware in addition to the region that position slit cut by described antenna
Metal surface form anodic oxide coating, wherein said pre- injected plastics material is that color and described anodic oxide coating be close or identical
Material, or be white or black material；Or
By caloric transfer printing technology, integrally cover anode oxide film or class anodic oxidation in the front of described hardware
Film is it is preferable that the front surface coated prime coat of first described hardware, then carries out thermal transfer；Or
In the front integral plated aluminum membranous layer of described hardware, then pass through anode oxidation process, in described aluminum membranous layer
Upper form anodic oxide coating it is preferable that the front surface coated prime coat of first described hardware, then plating aluminum membranous layer.
Further describe feature and the advantage of the specific embodiment of the invention below in conjunction with accompanying drawing.
Fig. 1 a to 1b is hardware crude green body and has carried out CNC preprocessing, and material is metal material, can be that aluminum closes
Gold, rustless steel, the metal material such as magnesium alloy, titanium alloy.According to product structure, metal crude green body may be selected suitable section punching press, aluminum
Squeeze, die casting, the processing technique such as casting are realized, the present embodiment is the realization of aluminium extrusion technique.
Technological datum face, fixed structure or screw hole, technology hole or structure can be processed on metal crude green body, for example directly
Footpath 4mm about location hole so that follow-up injection or CNC processing.In side or the bottom surface of crude green body, connection slit is pre-machined out
With the reinforcing rib structure of metal product main body, prevent metallic region deformation that slit in following process cuts off or come off that (this example is
Product bottom surface thickeies).
At the metal crude green body back side (corresponding to the inner side of product) wanting making antenna slit, being pre-machined out can with slit even
Connect insertion but walk glue hole not through metal crude green body, walk glue hole can beneficial to non-conductive pre- injected plastics material to slit filling and aerofluxuss with
Strengthen the effect of plastic-aluminum adhesion.Walk glue hole and be arranged on the metal crude green body back side, apart from metal crude green body just preferably walk the bosom in glue hole
More than face 0.2mm.
According to product and process requirements, can increase on metal crude green body surface and suitably draw plastic structure, to increase slit region gold
Belong to the adhesion with non-conductive pre- injected plastics material, and prevent the non-conductive pre- injected plastics material in the course of processing from ftractureing and coming off.
According to technological requirement, also the metal crude green body rear surface regions wanting making antenna slit can be supported reinforcement structure or
Thickness preprocessing, allowance after minimizing, so that the cracking occurring in processing after controlling slit to fill non-conductive pre- injected plastics material,
The problems such as deformation, size fluctuation.Support reinforcing structure or reserved thickness can be processed according to technological requirement, play a supporting role, keep away
Exempt from slit processing, slit injection, the deformation in rear working procedure processing, cracking or dimension overproof problem.
According to technological requirement, also polish can be carried out to the portion size that required precision is had on metal crude green body.
Fig. 2 a to 2c is to be carried out on hardware using cut, laser laser carving, wire cutting, CNC technology mode
Antenna slit is processed, the antenna cutting position of slit insertion product.
It is preferred that slit processes aft antenna cuts width in appearance for the position slit generally 0.03mm～0.8mm, pass through
Wear the antenna cutting position region on product, be beneficial to aerial signal and pass through metal shell.Minimum interval between antenna slit is not
Less than 0.15mm.The quantity of antenna slit according to aerial signal or product requirement, can be metal shell up and down or middle each 1～
Article 6, structure does not limit.The shape of antenna slit can pass through aerial signal, not limiting structure be straight line, camber line, curve or its
Its shape.
Fig. 3 a to 3b is the hardware after processing slit to be surface-treated and slit region is carried out for the first time
Injection is to fill non-conductive pre- injected plastics material with slit.
Before injection, can according to technological requirement hardware is carried out nano surface process, Passivation Treatment or can strengthen with
The other surfaces of non-conductive pre- injected plastics material and metal bond strength are processed.
After injection, product can be carried out strengthen injected plastics material and the bond strength of metal and elimination should according to process requirements
The Ageing Treatment of power, baking temperature and time need to require to carry out according to injected plastics material and Shooting Technique.
Fig. 4 a to 4b is on the hardware after the completion of first time injection, the region of plastic structure to be arranged to be carried out
CNC processes.
On hardware, the region to plastic structure to be arranged and the region having dimension precision requirement carry out CNC essence
Processing, to carry out second injection of the plastic structure of product.
According to product and process requirements, region that can be first weak with plastic cement bond strength to metal is entered row metal and is drawn adding of glue position
Work, to ensure product bulk strength, prevents deformation or problem of Cracking.
Fig. 5 a to 5b is that the hardware to product is surface-treated and is carried out second injection to be formed in product
Plastic structure.
Before injection, nano surface process, Passivation Treatment are carried out according to technological requirement to hardware or plastic cement can be strengthened
Process with the other surfaces of metal bond strength.
The bond strength that the material of first time injection has been had with the material of second injection, occurring without is layered or comes off asks
Topic, it is to avoid reduce the bond strength that position region cut by antenna.
After injection, according to process requirements, product can be carried out with the bond strength of enhancing plastic cement and metal and eliminate stress
Ageing Treatment, baking temperature and time need to require to carry out according to plastic material and Shooting Technique.
Fig. 6 a to 6b is that product after the completion of being molded to second carries out front CNC polish and functional structure hole position is such as taken the photograph
As the CNC processing of the side openings such as head, button, power key, remove product front surplus.
Fig. 7 a to 7b is product to be backed with assembling and the region of dimension precision requirement carries out polish, and make product with many
Remaining metal stock separates.
Fig. 8 a to 8b be product surface is polished, sandblasting processing, then carry out incrustation process, according to different products
Product demand, can have kinds of surface processing scheme：
Scheme one：Product is polished and blasting treatment after, then anodic oxidation is carried out to the surface of resultant metal part
Process, make product surface generate overall consistent or approximately consistent appearance, eliminate the sky on communication electronics resultant metal outer casing
Line cutting position observability, realizes coherent consistent, the overall unified appearance of outward appearance.
Scheme two：Using spraying coating process, to one layer of priming paint of product surface spray coating, it is filled in each structure division surface of product
On, eliminate the gap between each connection section of product, the defect such as step further, so that product surface is generated overall consistent
Appearance, and the adhesion between operation thermal transfer anode oxide film or class anode oxide film and each product structure after strengthening.
Then, using thermal transfer operations such as heating, pre-stretching, extrusion forming, coolings in the appearance of product, cover again in product surface
One layer of non-conductive anode oxide film of lid or class anode oxide film, thus thoroughly eliminate the antenna on communication electronics resultant metal outer casing
Cutting position observability, realizes coherent consistent, the overall unified anodised appearance of outward appearance.
Scheme three：Different from the technique of injected plastics material and collocation according to metal, to product surface spray coating or one layer of priming paint of plating
Layer, covers and is filled on each structure division surface of product, between eliminating between each connection section of product further
Gap, the defect such as step, make product surface generate overall homogeneous appearance.Then last layer aluminium film is plated on the appearance of product
Layer, then carries out anode oxidation process, forms one layer of anodic oxide coating on aluminum membranous layer, and the thickness of anodic oxide coating is so that aluminum membranous layer
Non-conductive it is defined.It is preferred that aluminum membranous layer thickness is 0.07mm～0.35mm.
As shown in Fig. 9 a to 9c, finally, according to product appearance or process requirements, optionally product is carried out secondary
CNC bloom chamfering and two-step anodization, to meet product demand.
The each six 0.15mm slits in rear and front end of housing, as shown in Fig. 9 a to 9c, specifically can be set, or rear and front end
Each three 0.4mm slits.
Shooting Technique of tradition can realize the direct injection of 1.2mm slot structure, has adhesion and non-trapped gas, constant
Shape, but cannot be carried out the slit injection of 0.4mm and following width it may appear that antenna is cut position deformation, trapped gas, starved, no combined
The injection defects such as intensity are it is impossible to volume production.
The preferred embodiment of the present invention adopts following technique：1st, first carry out the structural strengthening at the slit region back side；2nd, carry out micro-
The gap processing in seam region；3rd, first individually slit region is done with the injection of first time slit；4th, CNC removes the back side and strengthens supporting knot
Structure, then carry out second plastic structure injection.
By for the first time pre- Shooting Technique, first special fill antenna slit region, strengthens slit field strength, then carries out the
Quadric injection mould, realizes being fully filled with the slit filling of injected plastics material and combinative injection.
Traditional handicraft cannot realize three or six strip antenna grooves concentrate in together processing, and traditional handicraft is because of three or six skies
Intensive being arranged together of wire casing, when laser, CNC, linear cutter, because the air pressure in technique, hydraulic pressure, processing stress lead to sky
Line cutting position distortion (antenna cutting the narrow metal strength leading to of bit interval weak), deformation, gap is inconsistent after processing, size surpasses
Difference, metallic residue caking or lead to antenna cutting position quality unqualified and no actual production the problems such as block.
The preferred embodiment of the present invention is passed through to design supporting construction at the slit machining area back side or is increased the realization of thickness surplus
Structural strengthening, to ensure each bar metal cutting invariant position shape.
More preferably, before slit region is done with injection for the first time, walk glue hole by processing slit injection at the product back side,
Increase and walk glue hole, also can advantage is obtained that：1st, it is beneficial to non-conductive pre- injected plastics material and fill slit；2nd, discharge excessive gas, keep away
Exempt from trapped gas, also can smoothly discharge the metallic residue in slit processing simultaneously；3rd, shorten slit region and walk the glue time, increase aluminium alloy
With non-conductive pre- injected plastics material bond strength；4th, reduce slit region injection pressure, improve non-conductive pre- injected plastics material high pressure and fill out
When filling as weak antenna slit structural region in intensive and intensity, lead to antenna slit structural bending, change because metal strength is not enough
Shape and dimension overproof problem.
Above content is to further describe it is impossible to recognize with reference to concrete/preferred embodiment made for the present invention
Determine the present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention,
Without departing from the inventive concept of the premise, it can also make some replacements or modification to the embodiment that these have described that,
And these substitute or variant all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of 3C electronic product casing, including hardware it is characterised in that the back side of described hardware and front
Between run through and offer many strip antennas cutting positions slit, be filled with non-conductive pre- injection material in the slit of described antenna cutting position
Material, the back side of described hardware has the plastic structure of secondary injection molding, described plastic structure and described pre- injection material
Material and described hardware are combined as a whole.
2. 3C electronic product casing as claimed in claim 1 is it is characterised in that the width that position slit cut by described antenna is
0.03mm～0.8mm.
3. 3C electronic product casing as claimed in claim 2 is it is characterised in that the spacing distance of position slit cut by described antenna
For more than 0.15mm.
4. 3C electronic product casing as claimed in claim 1 is it is characterised in that described sky is removed in the front of described hardware
It is formed with the anodic oxide coating being formed through anodic oxidation, described pre- injection on metal surface outside the region of line cutting position slit
Material is that color and described anodic oxide coating be close or identical material, or for white or black material.
5. 3C electronic product casing as claimed in claim 1 is it is characterised in that the front of described hardware integrally covers
There are the anode oxide film being formed by thermal transfer or class anode oxide film it is preferable that the front of described hardware and described sun
Between pole oxide-film or class anode oxide film, there is prime coat.
6. 3C electronic product casing as claimed in claim 1 is it is characterised in that the front integral plated of described hardware
There is aluminum membranous layer, described aluminum membranous layer is formed with the anodic oxide coating being formed through anodic oxidation it is preferable that described hardware
Between front and described aluminum membranous layer, there is prime coat.
7. a kind of metal blank for making 3C electronic product casing is it is characterised in that the back side pair in described metal blank
Should offer to extend on the position that position slit cut by antenna and walk glue hole, institute between the back side of described metal blank and front
State and walk glue hole to cut to described antenna described in connection after antenna cutting position slit forms out on described metal blank
Position slit carry out pre- injection it is preferable that described walk glue hole bosom apart from described metal blank more than front 0.2mm.
8. a kind of preparation method of the 3C electronic product casing prepared as described in any one of claim 1 to 6 it is characterised in that
Comprise the following steps：
Process the antenna cutting position slit running through between the back side and front of metal blank, it is preferred to use cut or radium
Carver's skill or CNC technology mode are processed；
Using non-conductive pre- injected plastics material, antenna cutting position slit is carried out with pre- injection, fill antenna cutting position slit；
Carry out quadric injection mould with forming plastic cement structure at the back side of metal blank, described plastic structure and described pre- injected plastics material with
The strength unitary of setting degree is combined together, and is combined with metal blank；
Preferably, described metal blank has reinforcement structure, to prevent antenna from cutting the metal area cut off during the slit processing of position
Area deformation or separation come off；Described reinforcement structure was removed before carrying out quadric injection mould.
9. preparation method as claimed in claim 8 is it is characterised in that before carrying out pre- injection, elder generation is in the back of the body of metal blank
Face processes can cut position slit with described antenna and be connected insertion but walk glue hole not through metal blank；Carrying out quadric injection mould
Before, processing remove metal blank the back side have described in walk the part in glue hole to expose described antenna cutting position slit；Wherein
Described walk glue hole processed before processing described antenna cutting position slit, or after processing described antenna cutting position slit plus
Work.
10. preparation method as claimed in claim 8 or 9 is it is characterised in that after carrying out quadric injection mould, also include following step
Suddenly：
By anode oxidation process, in gold in addition to the region that position slit cut by described antenna for the front of described hardware
Metal surface forms anodic oxide coating, and wherein said pre- injected plastics material is that color and described anodic oxide coating be close or identical material
Material；Or
By caloric transfer printing technology, integrally cover anode oxide film or class anode oxide film in the front of described hardware, excellent
Selection of land, the first front surface coated prime coat of described hardware, then carry out thermal transfer；Or
In the front integral plated aluminum membranous layer of described hardware, then pass through anode oxidation process, shape on described aluminum membranous layer
Become anodic oxide coating it is preferable that the front surface coated prime coat of first described hardware, then plating aluminum membranous layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610868230.9A CN106455391B (en) | 2016-09-28 | 2016-09-28 | 3C electronic product shell and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610868230.9A CN106455391B (en) | 2016-09-28 | 2016-09-28 | 3C electronic product shell and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106455391A true CN106455391A (en) | 2017-02-22 |
| CN106455391B CN106455391B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610868230.9A Active CN106455391B (en) | 2016-09-28 | 2016-09-28 | 3C electronic product shell and preparation method thereof |
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| CN108075230A (en) * | 2018-01-08 | 2018-05-25 | 西安易朴通讯技术有限公司 | Antenna module and electronic equipment |
| CN110653563A (en) * | 2019-08-21 | 2020-01-07 | 广东长盈精密技术有限公司 | Electronic product shell machining process and electronic product shell |
| TWI718869B (en) * | 2019-04-26 | 2021-02-11 | 美商惠普發展公司有限責任合夥企業 | Electronic device housings with chamfered edges |
| CN112873706A (en) * | 2020-12-30 | 2021-06-01 | 深圳市裕展精密科技有限公司 | Metal plastic composite part, manufacturing method, shell and electronic equipment |
| CN117156032A (en) * | 2023-07-21 | 2023-12-01 | 荣耀终端有限公司 | Insert molding, center, electronic device, and insert molding method |
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