CN107839144A - A kind of processing method of housing, housing and mobile terminal - Google Patents
A kind of processing method of housing, housing and mobile terminal Download PDFInfo
- Publication number
- CN107839144A CN107839144A CN201710931917.7A CN201710931917A CN107839144A CN 107839144 A CN107839144 A CN 107839144A CN 201710931917 A CN201710931917 A CN 201710931917A CN 107839144 A CN107839144 A CN 107839144A
- Authority
- CN
- China
- Prior art keywords
- housing
- cast gates
- cast
- plastic cement
- injection machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 45
- 239000007924 injection Substances 0.000 claims abstract description 45
- 239000004568 cement Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
Abstract
The invention discloses a kind of processing method of housing, including provide housing；Four cast gates are set on a side of the housing, and four cast gates are arranged at intervals；The injection hole of the injection machine is set to correspond to four cast gates respectively, so that the plastic cement in the injection machine is flowed through on the inner surface of the housing by four cast gates, to form preset structure on the inner surface of the housing.The processing method of housing provided in an embodiment of the present invention is by setting four cast gates on a side of housing, the plastic cement of injection machine enable on the inner surface of four diverse locations inflow housing of a side, accelerate the flowing of plastic cement, reduce plastic cement because flow channel is oversize cool down caused by shrink it is bad the problem of, the adhesion of the inner surface of preset structure and housing is improved, enhances the reliability of housing.Present invention also offers a kind of housing and mobile terminal.
Description
Technical field
The present invention relates to electronic device field, more particularly to a kind of processing method of housing, housing and mobile terminal.
Background technology
The inner surface of terminal shell usually require to be molded into it is required variously-shaped, with first device inside fixed terminal
Part or improve terminal shell intensity, plastic cement during injection by various factors influenceed such as temperature height,
The factors such as the length of runner, and make it that bond strength of the plastic cement with housing on the diverse location of housing differs, bond strength
Weaker part may impact to the reliability of terminal shell.
The content of the invention
It is an object of the invention to provide a kind of processing method of housing, including：
Housing is provided；
Four cast gates are set on a side of the housing, and four cast gates are arranged at intervals；
The injection hole of the injection machine is set to correspond to four cast gates respectively, so that the plastic cement in the injection machine passes through institute
State four cast gates to flow through on the inner surface of the housing, to form preset structure on the inner surface of the housing.
The embodiment of the present invention additionally provides a kind of housing, and the inner surface of the housing has the processing side by above-mentioned housing
The preset structure that method is process.
The embodiment of the present invention additionally provides a kind of mobile terminal, including housing.
Processing method, housing and the mobile terminal of housing provided in an embodiment of the present invention are by setting four cast gates in housing
A side on so that the plastic cement of injection machine can a side four diverse locations flow into housing inner surface on,
Accelerate the flowing of plastic cement, reduce plastic cement because flow channel is oversize cool down caused by shrink it is bad the problem of, improve pre-
If the adhesion of the inner surface of structure and housing, enhance the reliability of housing.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, it will use below required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of the processing method of housing provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the cast gate in Fig. 1；
Fig. 3 is the schematic flow sheet of the processing method of another housing provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of mobile terminal provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not paid
Embodiment, belong to the scope of protection of the invention.
Below in conjunction with accompanying drawing 1- accompanying drawings 4, a kind of processing method of the housing provided first embodiment of the invention is carried out
It is discussed in detail.
Fig. 1 is referred to, is a kind of schematic flow sheet of the processing method of housing provided in an embodiment of the present invention.Such as Fig. 1 institutes
Show, the method for the embodiment of the present invention may comprise steps of S101- steps S105.
S101：Housing is provided.
Specifically, housing can be the bonnet or back-cover of mobile terminal.
Housing is made according to the actual requirements, it is possible to understand that, housing can be the bonnet of mobile terminal.Wherein, housing has
There are an outer surface and inner surface, outer surface is the surface that housing is exposed in air, i.e., can be direct when user uses mobile terminal
The surface touched；Inner surface is then the surface of component such as mainboard, battery etc. inside mobile terminal.
Bonnet has backboard and encloses the side being connected on backboard.Its dorsulum and the junction of the side are cambered surface.
It should be understood that housing is made in the following manner：Sheet metal is put into mould and strikes out preset shape
Metallic plate.Wherein, sheet metal is aluminium plate, and the aluminium plate of bulk is cut into the aluminium plate of fritter, the fritter that will have been cut
Aluminium plate, which is put into, carries out the metallic plate for being stamped and formed out preset shape in mould, it is possible to understand that, the punching press number of aluminium plate can be with
For once, or multiple continuous punching；Metallic plate is processed on Digit Control Machine Tool, forms required housing.
S103：Four cast gates 11 are set on a side of the housing.
Specifically, setting four cast gates 11 on a side of the housing, four cast gates 11 are arranged at intervals.
It should be understood that four cast gates 11 are arranged on the short side of the housing, cast gate 11 described in two of which
The edge of the housing is respectively arranged at, two other described cast gate 11 is arranged between the two of which cast gate 11.
Further, at least one slag well is set in four cast gates 11.At least one slag well is set
In on the cast gate 11 of the corner away from the housing.
In one embodiment, the quantity of slag well is two.Two slag wells are respectively arranged at two away from the housing
On individual cast gate 11.Slag well causes the plastic cement of the leading portion poor-performing of injection machine directly will not enter by cast gate 11 in housing
On surface, plastic cement injection molding on housing of poor-performing is avoided, further increases the reliability of housing.
S105：Four cast gates 11 are molded.
Specifically, the injection hole of the injection machine is set to correspond to four cast gates 11 respectively, so that in the injection machine
Plastic cement is flowed through on the inner surface of the housing by four cast gates 11, to form default knot on the inner surface of the housing
Structure 12.
It should be understood that the housing is clamped in injection mold, so that the inner surface of the housing and the injection
Mould forms the die cavity of the preset structure 12；
The injection hole of injection machine is corresponded into four cast gates 11 respectively so that the plastic cement in the injection machine pass through it is described
Four cast gates 11 are flowed in the die cavity.
Wherein, preset structure 12 can be supporting construction of stud, positioning hole or day linear slit etc..According to actually required
And it is correspondingly arranged.
Wherein, four cast gates 11 cause the approach for the inner surface that plastic cement flows to housing to shorten, and avoid plastic cement because longer
Flow channel and cause plastic cement temperature to cool down or produce substantial amounts of bubble, effectively reduce the temperature in plastic cement flow process
Declining and reduce the generation of bubble so that preset structure 12 and the inner surface of housing after shaping have stronger adhesion,
It ensure that housing has preferable reliability.
It should be understood that after the preset structure 12 on the inner surface of the housing is cooled and shaped, described four of excision is poured
Mouth 11.
The processing method of housing provided in an embodiment of the present invention by setting four cast gates 11 on a side of housing,
The plastic cement of injection machine is enabled to accelerate the stream of plastic cement on the inner surface of four diverse locations inflow housing of a side
It is dynamic, reduce plastic cement because flow channel is oversize cool down caused by contraction it is bad the problem of, improve preset structure 12 and housing
Inner surface adhesion, enhance the reliability of housing.
Below in conjunction with accompanying drawing 1- accompanying drawings 4, a kind of processing method of the housing provided first embodiment of the invention is carried out
It is discussed in detail.
Fig. 3 is referred to, is a kind of schematic flow sheet of the processing method of housing provided in an embodiment of the present invention.Such as Fig. 3 institutes
Show, the method for the embodiment of the present invention may comprise steps of S201- steps S209.
S201：Housing is provided.
Specifically, housing can be the bonnet or back-cover of mobile terminal.
Housing is made according to the actual requirements, it is possible to understand that, housing can be the bonnet of mobile terminal.Wherein, housing has
There are an outer surface and inner surface, outer surface is the surface that housing is exposed in air, i.e., can be direct when user uses mobile terminal
The surface touched；Inner surface is then the surface of component such as mainboard, battery etc. inside mobile terminal.
Bonnet has backboard and encloses the side being connected on backboard.Its dorsulum and the junction of the side are cambered surface.
It should be understood that housing is made in the following manner：Sheet metal is put into mould and strikes out preset shape
Metallic plate.Wherein, sheet metal is aluminium plate, and the aluminium plate of bulk is cut into the aluminium plate of fritter, the fritter that will have been cut
Aluminium plate, which is put into, carries out the metallic plate for being stamped and formed out preset shape in mould, it is possible to understand that, the punching press number of aluminium plate can be with
For once, or multiple continuous punching；Metallic plate is processed on Digit Control Machine Tool, forms required housing.
S203：Four cast gates 11 are set on a side of the housing.
Specifically, setting four cast gates 11 on a side of the housing, four cast gates 11 are arranged at intervals.
It should be understood that refer to Fig. 2, four cast gates 11 are arranged on the short side of the housing, two of which
The cast gate 11 is respectively arranged at the edge of the housing, and two other described cast gate 11 is arranged at the two of which cast gate
Between 11.
Further, at least one slag well is set in four cast gates 11.At least one slag well is set
In on the cast gate 11 of the corner away from the housing.
In one embodiment, the quantity of slag well is two.Two slag wells are respectively arranged at two away from the housing
On individual cast gate 11.Slag well causes the plastic cement of the leading portion poor-performing of injection machine directly will not enter by cast gate 11 in housing
On surface, plastic cement injection molding on housing of poor-performing is avoided, further increases the reliability of housing.
S205：A day linear slit is opened up on housing.
S207：Suction jig is directed at the day linear slit.
Specifically, Suction jig is aligned into the day linear slit, during being molded in the injection machine, the air-breathing is controlled
Tool produces suction through the day linear slit to the plastic cement on the inner surface of the housing.
A day linear slit is opened up on housing, this day linear slit will not cut off housing, and the effect of this day linear slit is mainly used in be follow-up
Suction jig provide opening, with cause Suction jig injection machine be molded during, in the die cavity of housing flow mould
Glue forms larger suction, so as to improve the mobile performance of plastic cement, the bubble of less plastic cement, improves the reliability of housing.
S209：Four cast gates 11 are molded.
Specifically, the injection hole of the injection machine is set to correspond to four cast gates 11 respectively, so that in the injection machine
Plastic cement is flowed through on the inner surface of the housing by four cast gates 11, to form default knot on the inner surface of the housing
Structure 12.
It should be understood that the housing is clamped in injection mold, so that the inner surface of the housing and the injection
Mould forms the die cavity of the preset structure 12；
The injection hole of injection machine is corresponded into four cast gates 11 respectively so that the plastic cement in the injection machine pass through it is described
Four cast gates 11 are flowed in the die cavity.
Wherein, preset structure 12 can be supporting construction of stud, positioning hole or day linear slit etc..According to actually required
And it is correspondingly arranged.
Wherein, four cast gates 11 cause the approach for the inner surface that plastic cement flows to housing to shorten, and avoid plastic cement because longer
Flow channel and cause plastic cement temperature to cool down or produce substantial amounts of bubble, effectively reduce the temperature in plastic cement flow process
Declining and reduce the generation of bubble so that preset structure 12 and the inner surface of housing after shaping have stronger adhesion,
It ensure that housing has preferable reliability.
Further, during injection, Suction jig is moulded by day linear slit to being flowed in the die cavity of housing simultaneously
Glue forms larger suction, so as to improve the mobile performance of plastic cement, the bubble of less plastic cement, improves the reliability of housing.
It should be understood that after the preset structure 12 on the inner surface of the housing is cooled and shaped, described four of excision is poured
Mouth 11.
The processing method of housing provided in an embodiment of the present invention by setting four cast gates 11 on a side of housing,
The plastic cement of injection machine is enabled to accelerate the stream of plastic cement on the inner surface of four diverse locations inflow housing of a side
It is dynamic, reduce plastic cement because flow channel is oversize cool down caused by contraction it is bad the problem of, improve preset structure 12 and housing
Inner surface adhesion, enhance the reliability of housing.
Fig. 4 is refer to, to mobile terminal 100 provided in an embodiment of the present invention.In the present embodiment, mobile terminal 100 wraps
Include housing 11, wherein, the present embodiments relate to mobile terminal 100 can any possess communication and store function is set
It is standby, such as：Tablet personal computer, mobile phone, electronic reader, remote control, personal computer (Personal Computer, PC), notes
This computer, mobile unit, Web TV, wearable device etc. have the smart machine of network function.
In the present embodiment, housing 11 can be the bonnet or back-cover of mobile terminal 100.Housing 11 is by signal shielding material system
Into, it is possible to understand that, signal shielding material is metal.
Preset structure on the inner surface of the housing 11 is fabricated by the processing method of casing shown in Fig. 1 or Fig. 3.
The module or unit of the embodiment of the present invention can be combined or split according to the actual requirements.
Above is the embodiment of the embodiment of the present invention, it is noted that come for those skilled in the art
Say, on the premise of principle of the embodiment of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (10)
- A kind of 1. processing method of housing, it is characterised in that including：Housing is provided；Four cast gates are set on a side of the housing, and four cast gates are arranged at intervals；The injection hole of the injection machine is set to correspond to four cast gates respectively, so that the plastic cement in the injection machine passes through described four Individual cast gate is flowed through on the inner surface of the housing, to form preset structure on the inner surface of the housing.
- 2. according to the method for claim 1, it is characterised in that four cast gates are arranged to the short side of the housing On, cast gate described in two of which is respectively arranged at the edge of the housing, two other described cast gate be arranged at it is described wherein Between two cast gates.
- 3. according to the method for claim 1, it is characterised in that at least one slag well is set in four cast gates.
- 4. according to the method for claim 3, it is characterised in that at least one slag well is arranged at away from the housing Corner cast gate on.
- 5. according to the method described in Claims 1-4 any one, it is characterised in that the injection hole for making the injection machine In the step of corresponding to four cast gates respectively, including：The housing is clamped in injection mold, so that the inner surface of the housing forms described preset with the injection mold The die cavity of structure；The injection hole of injection machine is corresponded into four cast gates respectively, so that the plastic cement in the injection machine is poured by described four Mouth is flowed in the die cavity.
- 6. according to the method for claim 1, it is characterised in that correspond to institute respectively in the injection hole for making the injection machine After the step of stating four cast gates, methods described also includes：After the preset structure on the inner surface of the housing is cooled and shaped, four cast gates are cut off.
- 7. according to the method for claim 1, it is characterised in that four cast gates of setting on a side of the housing After step, methods described includes：A day linear slit is opened up on housing；Suction jig is directed at the day linear slit, during being molded in the injection machine, the Suction jig is through the day Linear slit produces suction to the plastic cement on the inner surface of the housing.
- 8. according to the method for claim 1, it is characterised in that the housing is the bonnet of mobile terminal.
- 9. a kind of housing, it is characterised in that the inner surface of the housing has by described in claim 1 to 8 any one The preset structure that the processing method of housing is process.
- 10. a kind of mobile terminal, it is characterised in that the mobile terminal includes housing as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931917.7A CN107839144B (en) | 2017-09-30 | 2017-09-30 | A kind of processing method of shell, shell and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931917.7A CN107839144B (en) | 2017-09-30 | 2017-09-30 | A kind of processing method of shell, shell and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107839144A true CN107839144A (en) | 2018-03-27 |
| CN107839144B CN107839144B (en) | 2019-09-13 |
Family
ID=61662334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710931917.7A Active CN107839144B (en) | 2017-09-30 | 2017-09-30 | A kind of processing method of shell, shell and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107839144B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112291982A (en) * | 2020-10-26 | 2021-01-29 | 安徽卓上智能科技有限公司 | Intelligent voice recognition device's damp proof heat structure |
| CN112968983A (en) * | 2019-12-13 | 2021-06-15 | Oppo广东移动通信有限公司 | Electronic equipment and preparation method of electronic equipment protective film |
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| CN1328909A (en) * | 2000-06-19 | 2002-01-02 | 株式会社日立制作所 | Metal plate and resin mixed structure shell |
| CN204183833U (en) * | 2014-09-09 | 2015-03-04 | 创意塑胶工业（苏州）有限公司 | With the injection mold of Vacuuming structure |
| CN106079237A (en) * | 2016-06-27 | 2016-11-09 | 广东欧珀移动通信有限公司 | Housing forming method, housing and electronic installation |
| CN106827400A (en) * | 2016-12-20 | 2017-06-13 | 广东长盈精密技术有限公司 | Injection moulding process and injection mold |
| CN104924529B (en) * | 2015-05-29 | 2017-06-27 | 浙江鑫鼎塑业有限公司 | The tray die of convenient injection footing |
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2017
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|---|---|---|---|---|
| CN1328909A (en) * | 2000-06-19 | 2002-01-02 | 株式会社日立制作所 | Metal plate and resin mixed structure shell |
| CN204183833U (en) * | 2014-09-09 | 2015-03-04 | 创意塑胶工业（苏州）有限公司 | With the injection mold of Vacuuming structure |
| CN104924529B (en) * | 2015-05-29 | 2017-06-27 | 浙江鑫鼎塑业有限公司 | The tray die of convenient injection footing |
| CN106079237A (en) * | 2016-06-27 | 2016-11-09 | 广东欧珀移动通信有限公司 | Housing forming method, housing and electronic installation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968983A (en) * | 2019-12-13 | 2021-06-15 | Oppo广东移动通信有限公司 | Electronic equipment and preparation method of electronic equipment protective film |
| WO2021115152A1 (en) * | 2019-12-13 | 2021-06-17 | Oppo广东移动通信有限公司 | Electronic device and preparation method for electronic device protective film |
| CN112291982A (en) * | 2020-10-26 | 2021-01-29 | 安徽卓上智能科技有限公司 | Intelligent voice recognition device's damp proof heat structure |
| CN112291982B (en) * | 2020-10-26 | 2022-04-19 | 安徽卓上智能科技有限公司 | Intelligent voice recognition device's damp proof heat structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107839144B (en) | 2019-09-13 |
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