CN109454410A - A kind of processing method of mobile phone center, mobile phone center and mobile phone - Google Patents
A kind of processing method of mobile phone center, mobile phone center and mobile phone Download PDFInfo
- Publication number
- CN109454410A CN109454410A CN201811552249.8A CN201811552249A CN109454410A CN 109454410 A CN109454410 A CN 109454410A CN 201811552249 A CN201811552249 A CN 201811552249A CN 109454410 A CN109454410 A CN 109454410A
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- Prior art keywords
- outline border
- inside casing
- mobile phone
- processing
- phone center
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Telephone Set Structure (AREA)
Abstract
The present invention relates to metal working technical areas, in particular disclose processing method, mobile phone center and the mobile phone of a kind of mobile phone center, wherein method includes: to process by external frame material, obtains outline border；On the outline border, internal frame material is processed, and obtains inside casing, wherein the inside casing is located in outline border；CNC processing is carried out to the inside casing and the outline border, obtains antenna fault trough point；NMT processing is carried out to the inside casing and the outline border, so that plastic material is filled in antenna fault trough point, forms contoured beam antenna slot；Appearance processing is carried out to the outline border, to obtain the mobile phone center.By the above-mentioned means, the embodiment of the present invention can the inside casing of separation mobile phone center and the process of outline border, so that the material of outline border is no longer limited by inside casing, make with a series of mobile phone in appearance there are many selection.
Description
Technical field
The present embodiments relate to metal working technical area, more particularly in the processing method of mobile phone center, mobile phone
Frame and mobile phone.
Background technique
With the trend of mobile phone ultrathin and screen enlarging, in order to reinforce the integral strength and sense of touch of mobile phone, metal center is made
It is used on a large scale for handset.
In the implementation of the present invention, discovery: current, many cell phone appearances are basic above market by the present inventor
Identical, and material is single, appearance technique is single, this is because existing mobile phone center mostly uses greatly and first forges again CNC and add
Work processes the inside casing and frame structure of metal center on same embryo material.Therefore, the inside casing of metal center and outline border are same
Material, to limit the material and appearance of outline border.
Summary of the invention
In view of the above drawbacks of the prior art, the main purpose of the embodiment of the present invention is to provide a kind of adding for mobile phone center
Work method makes the outline border of mobile phone center and inside casing that different materials processing be respectively adopted, to realize the material of outline border not by inside casing
Limitation, can according to the demand of specific appearance and sense of touch use corresponding metal material.
In order to solve the above technical problems, a technical solution used in the embodiment of the present invention is: providing a kind of mobile phone center
Processing method, comprising: processed by external frame material, obtain outline border；On the outline border, internal frame material is processed,
Obtain inside casing, wherein the inside casing is located in outline border；CNC processing is carried out to the inside casing and the outline border, obtains antenna fault trough
Point；NMT processing is carried out to the inside casing and the outline border, so that plastic material is filled in antenna fault trough point, forms contoured beam antenna
Slot；Appearance processing is carried out to the outline border, to obtain the mobile phone center.
Optionally, described to be processed by external frame material, outline border is obtained, further comprises: the outer frame material is carried out
Pretreatment, obtains outline border embryo material；CNC processing is carried out to the outline border embryo material, forms outline border.
Optionally, described to pre-process to the outer frame material, the processing method for obtaining outline border embryo material includes squeezing out to add
Work, forging process or cold rolling material.
Optionally, described that CNC processing is carried out to the outline border embryo material, outline border is formed, further comprises: to the outline border embryo
Material carries out CNC processing, obtains outline border base structure；Fixing groove is processed in described matrix structure C NC, to obtain described outer
Frame.
Optionally, the fixing groove is dovetail groove.
Optionally, the width of the dovetail groove is greater than 5mm.
Optionally, described on the outline border, internal frame material is processed, and inside casing is obtained, and further comprises；To described
Interior frame material carries out die-casting process, obtains inside casing base structure and the retainingf key with fixing groove cooperation；Process antenna
Pad point, wherein the antenna pad point is located in the base structure of the inside casing.
Optionally, the processing technology of the antenna pad point includes die-casting process, CNC processing or laser-induced thermal etching.
Optionally, described that NMT processing is carried out to the inside casing and the outline border, further comprise: nanometered disposal, described
Nano-pore is made on inside casing and outline border；Injection molding makes the contoured beam antenna slot.
Optionally, the mode of the nanometered disposal is T processing, C processing, E processing or S processing.
Optionally, the method also includes carrying out appearance color process to the outline border.
Optionally, it is described to the outline border carry out appearance color process technique processing method include anode processing,
PVD plated film or spray painting.
It is to make to obtain using the processing method of mobile phone center provided by the invention the present invention also provides a kind of mobile phone center
's.
The present invention also provides a kind of mobile phones, including mobile phone center of the present invention.
The present invention also provides a kind of mobile phone centers, comprising: inside casing is equipped with antenna fault trough point；Outline border surrounds the inside casing
And it is connect with the inside casing.
Optionally, the inside casing is additionally provided with retainingf key, and the outline border is equipped with fixing groove, the retainingf key and the fixing groove
The inside casing and the outline border are fixed in cooperation.
Optionally, the retainingf key is dovetail sunk key, and the fixing groove is dovetail groove.
Optionally, the width of the dovetail groove is greater than 5mm.
The beneficial effect of the embodiment of the present invention is: being in contrast to the prior art, in embodiments of the present invention, first with outer
Frame material processes the outline border of mobile phone center, then processes the inside casing of mobile phone center with interior frame material on outline border, in this way can be with
Limit the material of outline border outline border by inside casing, it can be according to the demand of specific appearance and sense of touch using corresponding gold
Belong to material.
Detailed description of the invention
It, below will be to specific reality in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
It applies example or attached drawing needed to be used in the description of the prior art is briefly described.In all the appended drawings, similar element or portion
Divide and is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio
Fig. 1 is a kind of flow chart of the processing method of mobile phone center according to an embodiment of the present invention；
Fig. 2 is the external flow chart of frame material processing in a kind of mobile phone center according to an embodiment of the present invention；
Fig. 3 is the stream for carrying out CNC processing in a kind of mobile phone center to the outline border embryo material according to an embodiment of the present invention
Cheng Tu；
Fig. 4 is that internally frame material is processed to obtain the stream of inside casing in a kind of mobile phone center according to an embodiment of the present invention
Cheng Tu；
Fig. 5 is to carry out NMT to the inside casing and the outline border in a kind of mobile phone center according to an embodiment of the present invention to add
The flow chart of work；
Fig. 6 is the flow chart of the processing method of mobile phone center a kind of according to a further embodiment of the invention；
Fig. 7 is a kind of cross-sectional view of mobile phone center of the embodiment of the present invention；
Fig. 8 is the partial view of fixing groove and retainingf key in a kind of mobile phone center of the embodiment of the present invention.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
The processing method of a kind of mobile phone center provided in an embodiment of the present invention, referring to Fig. 1, this method includes following step
It is rapid:
Step S101: it is processed by external frame material, obtains outline border.
In this step, outer frame material is the relatively high metal material of intensity, and outline border is enable to play protection handset
Effect, still, material specific for outline border can be selected according to specific appearance demand, such as: select aluminium alloy, stainless
Steel or titanium alloy etc..
According to the specific flow chart of the external frame material processing, as shown in Fig. 2, this method specifically includes:
Step S201: the outer frame material is pre-processed, outline border embryo material is obtained.
Outline border embryo material in this step is the blank material before being processed into finished product, outer to what is obtained before pretreatment
Frame embryo material carries out the design of shapes and sizes, can meet the demand of the following process of outline border.
In some embodiments, the outer frame material is pre-processed, the processing method for obtaining outline border embryo material can be
Squeeze out processing, forging process or cold rolling material, certainly, the processing method of other outline border embryo materials that can satisfy outline border performance also can,
It no longer repeats one by one herein.
Step S202: CNC (Computer numer i ca l contro l, computer are carried out to the outline border embryo material
Numerically-controlled machine tool) processing, form outline border.
According to the flow chart for carrying out CNC processing to the outline border embryo material, as shown in figure 3, this method specifically includes:
Step S301: CNC processing is carried out to the outline border embryo material, obtains outline border base structure.
Outline border base structure in this step includes some datum levels and location hole, in order to mobile phone center inside casing at it
It is processed above.
Step S302: fixing groove is processed in described matrix structure C NC, to obtain the outline border.
After this step, fixing groove is the component for connecting inside casing and outline border closely.In addition, being wanted after CNC is processed
Outline border is cleaned, chip is removed.
In some embodiments, above-mentioned fixing groove is dovetail groove.Certainly, fixing groove is also possible to other shape, as long as energy
The inside casing and outline border for guaranteeing mobile phone center closely connect.
Further, for above-mentioned dovetail groove, width is greater than 5mm, this is also for making the connection of inside casing and outline border more
It is secured.
Step S102: on the outline border, internal frame material is processed, and obtains inside casing, wherein the inside casing is located at outer
In frame.
In this step, interior frame material should be more liquid metal, in order to die-casting process, can be aluminium conjunction
Gold, magnesium alloy and kirsite etc..In addition, the inside casing of mobile phone center is for placing and fixing PCB (Printed Circuit
Board, printed circuit board) plate and antenna component, structure design to guarantee antenna performance and pcb board performance not by shadow
It rings.
It is processed to obtain the flow chart of inside casing according to the internal frame material, as shown in figure 4, this method specifically includes:
Step S401: carrying out die-casting process to the interior frame material, obtain inside casing base structure and with the fixing groove
The retainingf key of cooperation.
In this step, in mold needed for outline border being first placed on die casting, then the metal of the interior frame material of high pressure injection is molten
The base structure of inside casing and the retainingf key with fixing groove cooperation can be obtained in liquid after cooling.Retainingf key and fixing groove cooperation can
To allow inside casing and outline border preferably to combine, otherwise may there are problems that metal cracking between inside casing and outline border.In addition, mobile phone
Antenna in center wants multiple authentication in exploitation design, needs inside casing in this way and modifies in structure to cooperate, and die-casting process
This can quickly be solved the problems, such as by only needing to modify mold, meanwhile, the consistency of die-casting process is preferable, the inside casing processed
Size does not have too big difference.
Step S402: antenna pad point is processed, wherein the antenna pad point is located in the base structure of the inside casing.
Antenna pad point in this step is in the prior art for connecting the structure of antenna and pcb board, if antenna pad
Point and pcb board combine not close, may result in the electrical property decline of mobile phone, and method meets the electrical property demand of antenna.So
The retainingf key in fixing groove and step S401 in step S302 is very necessary.
In some embodiments, the processing technology of above-mentioned antenna pad point can be die-casting process, CNC processing or laser erosion
It carves.If it is die-casting process, antenna can be made in the mold in step S401 plus structure needed for antenna pad point
The die casting simultaneously of the base structure and retainingf key of pad point and inside casing comes out.It, then will be in step if it is, CNC processing or laser-induced thermal etching
Structure needed in addition processing antenna pad point after rapid S401.
Step S103: CNC processing is carried out to the inside casing and the outline border, obtains antenna fault trough point.
In this step, antenna fault trough point is to install structure required for antenna in the prior art.
Step S104: NMT (Nano Molding Technology, nanometer injection molding are carried out to the inside casing and the outline border
Technique) processing, so that plastic material is filled in antenna fault trough point, formation contoured beam antenna slot.
In this step, contoured beam antenna slot is for coupling antenna in antenna fault trough point position.NMT processing makes to form
The combination of antenna slot and inside casing and outline border is closer, meanwhile, interference of the metal material to antenna performance can be reduced.
According to the flow chart for carrying out NMT processing to the inside casing and the outline border, as shown in figure 5, this method is specific
Include:
Step S501: nanometered disposal makes nano-pore on the inside casing and outline border.
In some embodiments, the mode of above-mentioned nanometered disposal can be T processing, C processing, E processing or S processing.Certainly,
There are also other nanometered disposal modes, such as: HK processing and PMH processing etc., or the mode of nanometered disposal of the invention.Tool
Body selects that nanometered disposal mode to need to process the metal material that required plastic material and inside casing and outline border are used according to NMT
The actual conditions such as material determine.
Step S502: injection molding makes the contoured beam antenna slot.
In this step, in mold needed for the inside casing combined closely and outline border being first put into injection molding, which includes
The structure for forming contoured beam antenna slot, is then injected into plastic cement solution, and the antenna slot point in plastic cement solution step S103 forms molding day
Wire casing, meanwhile, plastic cement solution can also flow into the nano-pore in step S501, it is made to combine closely with inside casing and outline border.
Step S105: appearance processing is carried out to the outline border, to obtain the mobile phone center.
In this step, CNC finishing can be carried out to outline border according to specific appearance requirement, removes the overlap and hair on surface
Thorn improves surface quality, while also processing more attractive moulding.In order to realize the mobile phone of same model, and material and outer
It is different to see effect, it is only necessary to change the step the outer frame material in S101, in subsequent step all to the procedure of processing of outline border and inside casing
It haves no need to change.
In some embodiments, it is also necessary to the color of the outline border of mobile phone center is changed.
Referring to Fig. 6, Fig. 6 is a kind of flow chart of the processing method of mobile phone center of another embodiment of the present invention, this reality
Apply example and above-described embodiment the difference is that, after step S105, method further include:
S601: appearance color technique is carried out to the outline border.
When choosing outer frame material, probably due to cost or intensity requirement have selected a kind of metal, but its color is not inconsistent
Expectation is closed, at this moment needs to carry out color treatments to outline border to reach desired appearance again.
In some embodiments, the above-mentioned process for carrying out appearance color technique to the outline border can be at anode
Reason, PVD plated film or spray painting.Which kind of specifically to be selected according to the demand to cost and appearance using.
The present invention is no longer limited by the material of outline border interior by the inside casing of separation mobile phone center and the process of outline border
Frame, make with a series of mobile phone in appearance there are many selection.Furthermore the method for obtaining different appearances is also very simple, it is only necessary to
Change outer frame material in step S101.And in the prior art, outer frame material changes, and interior frame material will also change.Without
Same material influences difference to the performance of antenna, so the structure of inside casing will also change to cooperate antenna, it is sufficiently complex.
The present invention also provides a kind of mobile phone centers, using a kind of processing method of mobile phone center provided in an embodiment of the present invention
Production obtains.
The present invention also provides a kind of mobile phones, including a kind of mobile phone center.Hand in the mobile phone center and above-described embodiment
Machine middle frame structure and function are consistent, see above-described embodiment for the structure and function of mobile phone center, herein no longer one by one
It repeats.
Referring to Fig. 7, the present invention also provides a kind of mobile phone center, including inside casing 701 and outline border 703.Inside casing 701 is equipped with day
Line fault trough point 703, antenna fault trough point 703 form contoured beam antenna slot, for being filled in plastic material in its slot for coupling day
Line can reduce metal in this way and interfere aerial signal.There are also antenna pad points on inside casing 701 simultaneously, for connecting antenna and position
Pcb board on inside casing 701.
For above-mentioned outline border 703, inside casing 701 is surrounded and is connect with inside casing 701 by outline border 703.Meanwhile antenna fault trough point
703 can also pass through outline border 702 simultaneously is more conducive to antenna reception outer signals in this way.In addition, outline border 703 can be according to appearance demand
Select different metal materials, it is not necessary to be limited to the material of inside casing 701.
In some embodiments, as shown in figure 8, inside casing 701 is additionally provided with retainingf key 802, outline border 703 is equipped with and fixes 801, Gu
Determine key 802 and the cooperation of fixing groove 801 is fixed by inside casing 701 and outline border 702, this is may in order to solve different metal material combination
The problem of metal cracking of appearance.
In some embodiments, retainingf key 802 is dovetail sunk key, and fixing groove 801 is dovetail groove, and certainly, fixing groove can also
To be other shape, as long as can guarantee that the inside casing of mobile phone center and outline border closely connect.
Further, for above-mentioned dovetail groove, width is greater than 5mm, this is also for making the connection of inside casing and outline border more
It is secured.
The present invention makes the appearance material of mobile phone center by the way that mobile phone center is divided into 702 two components of inside casing 701 and outline border
It is no longer limited by mobile phone center for connecting the material of antenna and pcb board, realizes the diversification of its appearance.In addition, fixed
It is untight that key 802 with the cooperation of fixing groove 801 also solves the problems, such as that two kinds of different metals connect, and avoids positioned inside casing 701
The performance of antenna be affected.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.Especially, as long as there is no knots
Structure conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The present invention does not limit to
In specific embodiment disclosed herein, but include all technical solutions falling within the scope of the claims.
Claims (18)
1. a kind of processing method of mobile phone center characterized by comprising
It is processed by external frame material, obtains outline border；
On the outline border, internal frame material is processed, and obtains inside casing, wherein the inside casing is located in outline border；
CNC processing is carried out to the inside casing and the outline border, obtains antenna fault trough point；
NMT processing is carried out to the inside casing and the outline border, so that plastic material is filled in antenna fault trough point, forms contoured beam antenna
Slot；
Appearance processing is carried out to the outline border, to obtain the mobile phone center.
2. outline border is obtained the method according to claim 1, wherein described processed by external frame material, into one
Step includes:
The outer frame material is pre-processed, outline border embryo material is obtained；
CNC processing is carried out to the outline border embryo material, forms outline border.
3. according to the method described in claim 2, obtaining outer it is characterized in that, described pre-process the outer frame material
The processing method of frame embryo material includes squeezing out processing, forging process or cold rolling material.
4. according to the method described in claim 2, formation is outer it is characterized in that, described carry out CNC processing to the outline border embryo material
Frame further comprises:
CNC processing is carried out to the outline border embryo material, obtains outline border base structure；
Fixing groove is processed in described matrix structure C NC, to obtain the outline border.
5. according to the method described in claim 4, it is characterized in that, the fixing groove is dovetail groove.
6. according to the method described in claim 5, it is characterized in that, the width of the dovetail groove is greater than 5mm.
7. according to the method described in claim 4, internal frame material is processed it is characterized in that, described on the outline border,
Inside casing is obtained, further comprises；
Die-casting process is carried out to the interior frame material, obtains inside casing base structure and the retainingf key with fixing groove cooperation；
Process antenna pad point, wherein the antenna pad point is located in the base structure of the inside casing.
8. the method according to the description of claim 7 is characterized in that the processing technology of the antenna pad point include die-casting process,
CNC processing or laser-induced thermal etching.
9. the method according to claim 1, wherein described carry out NMT processing to the inside casing and the outline border,
Further comprise:
Nanometered disposal makes nano-pore on the inside casing and outline border；
Injection molding makes the contoured beam antenna slot.
10. according to the method described in claim 9, it is characterized in that, the mode of the nanometered disposal is that T is handled, C is handled, at E
Reason or S processing.
11. the method according to claim 1, wherein the method also includes carrying out appearance face to the outline border
Color process.
12. according to the method for claim 11, which is characterized in that described to carry out appearance color process to the outline border
Technique processing method include anode processing, PVD plated film or spray painting.
13. a kind of mobile phone center, it is characterised in that: be adding using mobile phone center described in any one of claim 1-12
Work method is prepared.
14. a kind of mobile phone, it is characterised in that: including the mobile phone center described in claim 13.
15. a kind of mobile phone center characterized by comprising
Inside casing is equipped with antenna fault trough point；
The inside casing is surrounded and is connect with the inside casing by outline border.
16. mobile phone center according to claim 15, which is characterized in that the inside casing is additionally provided with retainingf key, the outline border
Equipped with fixing groove, the inside casing and the outline border are fixed in the retainingf key and fixing groove cooperation.
17. mobile phone center according to claim 16, which is characterized in that the retainingf key is dovetail sunk key, the fixation
Slot is dovetail groove.
18. mobile phone center according to claim 17, which is characterized in that the width of the dovetail groove is greater than 5mm.
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| CN201811552249.8A CN109454410A (en) | 2018-12-18 | 2018-12-18 | A kind of processing method of mobile phone center, mobile phone center and mobile phone |
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| CN110369951A (en) * | 2019-07-04 | 2019-10-25 | 东莞长盈精密技术有限公司 | The processing method and metal center of metal center |
| CN112872732A (en) * | 2021-01-18 | 2021-06-01 | 惠州威博精密科技有限公司 | Mobile phone middle frame slotting machining process and mobile phone middle frame machining process |
| CN113542458A (en) * | 2020-04-16 | 2021-10-22 | 华为机器有限公司 | Middle frame and manufacturing method thereof and electronic equipment |
| CN114789573A (en) * | 2022-03-07 | 2022-07-26 | 广东长盈精密技术有限公司 | Forming method of electronic equipment frame piece and electronic equipment shell |
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| CN108274199A (en) * | 2018-01-25 | 2018-07-13 | 广东劲胜智能集团股份有限公司 | A kind of preparation method of combined housing |
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| CN114789573A (en) * | 2022-03-07 | 2022-07-26 | 广东长盈精密技术有限公司 | Forming method of electronic equipment frame piece and electronic equipment shell |
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