CN107683050B - Shell, mobile terminal and shell manufacturing method - Google Patents
Shell, mobile terminal and shell manufacturing method Download PDFInfo
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- CN107683050B CN107683050B CN201711062267.3A CN201711062267A CN107683050B CN 107683050 B CN107683050 B CN 107683050B CN 201711062267 A CN201711062267 A CN 201711062267A CN 107683050 B CN107683050 B CN 107683050B
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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
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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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
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to the field of electronic equipment, and discloses a shell which comprises a metal substrate and a first plastic body, wherein the metal substrate comprises a first surface and a second surface which are oppositely arranged, a groove is formed in the first surface, at least two micro-seams are formed in the second surface, the at least two micro-seams are communicated with the groove, and the first plastic body is filled in the at least two micro-seams and the groove. The groove on the first surface is communicated with the at least two micro-seams on the second surface, so that the first plastic bodies filled in the micro-seams and the groove are communicated into a whole in the metal matrix, and the integral rigidity of the micro-seam structure is improved. The invention also provides a mobile terminal and a shell manufacturing method.
Description
Technical Field
The invention relates to the field of electronic equipment, in particular to a shell, a mobile terminal and a manufacturing method of the shell.
Background
Nowadays, in the mobile terminal market, all-metal housings are increasingly favored by consumers. However, although the mobile terminal with an all-metal housing is beautiful, for many mobile terminals with antennas that need to receive or transmit radio frequency signals, the shielding effect of the all-metal housing on the radio frequency signals becomes an obstacle to the application of the all-metal housing as a housing.
In the existing design, mobile terminal manufacturers make a lot of optimization improvements to the defect, and a common improvement method is to machine a gap penetrating through a metal housing on the back of a metal mobile phone by a numerical control machine, and inject non-shielding materials such as plastic into the gap by injection molding to form a clearance area for radio frequency signals to pass through. However, since the metal case is filled with a non-shielding material such as plastic, which has a lower hardness than metal and a different thermal expansion and contraction rate from metal, scratches or cracks are likely to occur in the gap of the metal case during long-term use. On the other hand, the overall consistency and the touch of the mobile terminal housing are also affected to a certain extent.
Disclosure of Invention
The invention aims to provide a shell, a mobile terminal and a shell manufacturing method, which can effectively improve the integral rigidity and appearance consistency of a gap clearance area.
In order to solve the above technical problem, an embodiment of the present invention provides the following solutions:
on the one hand, the shell comprises a metal base body and a first plastic body, wherein the metal base body comprises a first surface and a second surface which are arranged oppositely, the first surface is provided with a groove, the second surface is provided with at least two micro-seams which are spaced from each other, the at least two micro-seams penetrate through the groove, the at least two micro-seams and the groove are filled with the first plastic body, and the first plastic body is made of a non-signal shielding material.
In another aspect, a mobile terminal is also provided, which includes the above housing.
In another aspect, a method for manufacturing a housing is provided, including the steps of:
processing a groove on the first surface of the metal substrate;
filling a second plastic body in the groove;
processing at least two micro-seams on the metal substrate, wherein the metal substrate further comprises a second surface opposite to the first surface, and the at least two micro-seams penetrate from the second surface to the groove;
removing the second plastic body in the groove;
filling a first plastic body in the at least two micro-seams and the groove; and
and curing the first plastic body.
According to the shell provided by the embodiment of the invention, the micro-seams are arranged side by side in the clearance area, the micro-seams are connected through the grooves, the independent non-shielding materials with the thin and long layer structures are communicated into a whole, and the non-shielding materials in the clearance area have better connectivity and rigidity compared with the existing design by matching with the strip-shaped metal supports formed between the adjacent micro-seams, and meanwhile, the second plastic body with transitional property is arranged in the processing process, so that the manufacturability of the metal matrix after the grooves are formed is greatly improved, the processing difficulty of the micro-seams is reduced, and the yield is improved. The micro-seams of the mobile terminal provided by the embodiment of the invention are mutually supported because of mutual communication, so that the rigidity of the metal shell is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic illustration of a cross-section of a housing of the present invention;
FIG. 2 is a schematic view of the exterior of the housing of the present invention;
fig. 3 is a schematic view of the external appearance of the terminal of the present invention;
FIG. 4 is a schematic flow chart of a first embodiment of the method of the present invention;
FIG. 5 is a schematic illustration of a second injection molded body during an embodiment of the method of the present invention;
FIG. 6 is a schematic illustration of filling a first injection molded body during an embodiment of the method of the present invention;
fig. 7 is a schematic flow chart of a second embodiment of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "thickness" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Referring to fig. 1, a cross-sectional view of a housing 200 according to an embodiment of the invention provides a metal substrate 100, the metal substrate 100 is provided with a first surface 01 and a second surface 02, the first surface 01 is provided with a groove 11, the second surface 02 is provided with at least two micro-seams 21 which are arranged side by side and spaced from each other, the at least two micro-seams 21 penetrate through the metal substrate 100 to the groove 11, the micro-seams 21 and the groove 11 are all filled with a first plastic body 001, and the first plastic body 001 is made of a non-signal shielding material, typically plastic glue.
The gap which is usually directly opened on the shell body 200 is wider, the micro-slits 21 are arranged side by side, a clearance area structure which is arranged in a staggered mode of metal-micro-slit material-metal is formed, the wider clearance area can be better prevented from influencing the strength of the metal shell, the appearance consistency and the touch feeling, and meanwhile, the sufficient clearance area is ensured. However, since the micro-gaps 21 must completely penetrate the housing 200, the non-shielding material filled in the micro-gaps 21 is in a thin and long thin layer structure, and multiple rows of thin and long thin layer structures are arranged in parallel, which is not favorable for controlling the rigidity of the metal substrate 100, and also puts higher process requirements on the processing precision, surface roughness and the like of each micro-gap 21, and is easy to affect the yield of the product.
It can be understood that, after each micro-seam 21 is communicated with the groove 11, because the first plastic body 001 filled in the groove is connected with the first plastic body 001 filled in each micro-seam 21 into a whole, the overall structural stability of the first plastic body 001 is greatly improved, and the stable first plastic body 001 also improves the overall rigidity and structural stability of the metal base 100, and thus the shell 200, while the strip-shaped metal parts, i.e. the frame strips 22, interlaced between the micro-seams 21 also maintain the integrity of the appearance and the touch of the shell 200.
Preferably, the metal substrate 100 is cut by laser cutting, and the width of the micro-slit 21 is less than 0.3 mm.
In this embodiment, a frame strip 22 extending along a first direction is formed between two adjacent micro-gaps 21, fig. 1 is a cross-sectional view perpendicular to the first direction, the first plastic body 001 is preferably injected from the first surface 01, i.e. the groove 11, and is filled from the second surface 02, i.e. the micro-gaps 21, and the injected plastic fills the micro-gaps 21 and then fills the groove 11. The reason for this is that the gap of the micro-slits 21 is too small and the filling process is more complicated. Therefore, the opening width of the groove 11 on the first surface 01 should be larger than the opening width of the micro-seam 21 on the second surface 02, so that it can be ensured that the injection port of the plastic is larger than the molding port, and the injection port is in an aggregation state during the injection process, thereby avoiding the defects of air bubbles and the like caused by uneven diffusion of the plastic, and damaging the injection molding quality and the final molding quality of the first injection molded body 001. The opening width of the micro-slits 21 on the second side 02 is understood in the present exemplary embodiment to be the distance between two farthest side walls of a plurality of micro-slits 21 arranged next to one another.
Furthermore, on the cross section perpendicular to the first direction, the groove 11 is configured as a trapezoid, the long side of the trapezoid is the boundary line between the groove 11 and the first surface 01, that is, the short side of the trapezoid is the interface between the groove 11 and the micro-slit 21, such configuration can further utilize the side wall of the groove 11 to guide the plastic cement to continuously gather inwards in the filling process, thereby improving the filling quality. In addition, since the micro-slits 21 are laser-cut and generally appear as straight surfaces in the present cross section, the opening width of the micro-slits 21 is the maximum width of the micro-slits 21 at the interface of the micro-slits 21 and the grooves 11. Trapezoidal setting can guarantee the lateral wall of recess 11 is wider than many the whole width of slit 21 has avoided appearing the shape that is unfavorable for plastic glue shaping such as back taper at the in-process of filling, guarantees filling quality.
In an embodiment, it can be seen from this cross section that, because the micro-slits 21 are vertical through holes, the position of the boundary between each micro-slit 21 and the groove 11, that is, the periphery of the end surface of the frame strip 22 facing the groove 11, forms a right angle, so that after the first injection molded body 001 is molded, the first injection molded body 001 also forms a corresponding right angle shape. This right-angle shape is unfavorable for the stress release of first injection molding body 001 in the injection moulding process, and the stress concentration point forms more easily after long-term the use, produces crackle etc. and finally causes the outward appearance and the structural stability of first injection molding body 001. Therefore, the right angles at the periphery of the end face of the groove 22 are all subjected to fillet transition treatment, so that the structural stability of the first injection molded body 001 can be further improved.
In the embodiment of the present invention, the housing 200 is made of the metal base 100 (see fig. 2), and the housing 200 may be a rear cover or a back cover of a mobile terminal (see fig. 3). The mobile terminal related to the embodiment of the present invention may be any device having communication and storage functions, for example: the system comprises intelligent equipment with a network function, such as a tablet computer, a mobile phone, an electronic reader, a remote controller, a Personal Computer (PC), a notebook computer, vehicle-mounted equipment, a network television, wearable equipment and the like. Due to the adoption of the shell, the mobile terminal has better appearance consistency and structural stability while realizing the transceiving of radio frequency signals.
Referring to fig. 4, which is a schematic flow chart of a manufacturing method of a housing according to an embodiment of the present invention, the method according to the embodiment of the present invention may include the following steps S11 to S16:
s11: providing a metal base body 100, wherein the metal base body 100 comprises a second surface 02 and a first surface 01 which are oppositely arranged, and a groove 11 is processed on the first surface 01;
specifically, the metal base 100 may be a housing 200, i.e., a rear cover or a back cover, of the mobile terminal. The grooves 11 formed in the first surface 01 are matched with the micro-slits 21 to be formed later, so that the shape of the grooves 11 corresponds to the shape of the micro-slits 21 to be formed.
S12: injecting and filling a second plastic body 002 into the groove 11;
specifically, referring to fig. 5, the injection molding filling in the groove 11 places the metal substrate 100 on the positioning jig 400 of the dispenser 300, because the second plastic body 002 belongs to a process transition filler, the main concern is that the second plastic body 002 should be attached to the bottom surface of the groove 11 as full as possible, so as to facilitate the subsequent processing of the micro-gap 21. Because the second plastic body 002 is a process transition filler, when the second plastic body 002 is partially higher than the first surface 01 or partially lower than the first surface 01 after the injection molding is completed, the influence on the subsequent processes is not great. It is understood that the second plastic body 002 may be an insulating layer in the housing processing.
S13: processing at least two micro-slits 21 on the second surface 02 at positions opposite to the grooves 11, wherein the processing depths of the at least two micro-slits 21 penetrate through the metal substrate 100 and reach the second plastic body 002;
specifically, the micro-slits 21 may be formed by cutting the metal substrate 100 by laser cutting. It is understood that the width of the micro-slits 21 is less than 0.3mm, and the laser cutting method is more suitable when the micro-slits 21 are smaller. Of course, in other embodiments, the width of the micro-slits 21 may be greater than or equal to 0.3 mm. Due to the filling of the second plastic body 002, the groove 11 can provide certain support for the processing of the micro-seam 21, and the self rigidity of the micro-seam 21 during processing is enhanced, so that the micro-seam 21 is not easy to deform such as torsion, inclination and the like during processing, the processing performance of the micro-seam 21 is improved, and the processing difficulty is reduced.
S14: processing and removing the second plastic body 002 in the groove 11, so that the at least two micro-slits 21 are communicated through the groove 11;
specifically, since the depth of the at least two micro-slits 21 reaches from the second face 02 to the inside of the second plastic body 002, after the plastic body 001 is processed and removed, the at least two micro-slits 21 penetrate through the bottom surface of the groove 11, and a penetration path of at least two micro-slits 21 exists between the second face 02 and the first face 01, so that a clearance area structure required by the antenna is formed.
S15: injecting and filling a first plastic body 001 in the at least two micro-slits 21 and the groove 11;
specifically, referring to fig. 6, in the injection molding of the at least two micro-slits 21 and the groove 11, a stopper 420 is required to be disposed at the other end of the plastic injection port, so as to prevent the plastic from continuously falling down along the through hole. The final molding height should be controlled on the side of the sprue. It is understood that the finally molded first plastic body 001 should be flush with the second side 02 and the first side 01, at least not lower than the second side 02 or the first side 01.
S16: and curing the first plastic body 001.
Specifically, after the first plastic body 001 is cured, the filling of the micro-gap 21 is completed, no gap exists in the whole metal substrate 100, and the second surface 02 and the first surface 01 are flat.
According to the manufacturing method of the metal matrix shell, the first plastic bodies in the groove areas are used for connecting the plastic bodies in the elongated micro-seams arranged in parallel into a whole, so that the structural stability of the plastic bodies in the micro-seams is further facilitated, and the appearance consistency and the reliability of the shell can be improved after injection molding is completed. On the other hand, the second plastic body is used as a transitional filling material in the process, so that the rigidity of the groove is ensured, a powerful support is provided in the processing process of the micro-seam, the processing quality of the micro-seam is ensured, and the processing difficulty of the micro-seam is reduced.
Referring to fig. 7, a flow chart of a casing manufacturing method according to a second embodiment of the invention is shown. The specific method may include the following steps S21 to S29:
s21, providing a metal base 100, wherein the metal base comprises a second surface 02 and a first surface 01 which are oppositely arranged, and a groove 11 is processed on the first surface 01;
specifically, the metal base 100 may be a housing 200, i.e., a rear cover or a back cover, of the mobile terminal. The groove 11 machined on the first surface 01 is matched with the micro-gap 21 to be machined later, so that the shape of the groove 11 corresponds to the shape of the micro-gap 21 to be formed, and the opening width of the groove 11 on the first surface 01 is not less than the width of the micro-gap 21 to be formed on the cross section perpendicular to the first direction.
Obviously, the grooves 11 can be machined by means of a numerically controlled machine tool, which allows to obtain a better machining quality. In order to form the groove 11 with a width not smaller than the width of the micro-slit 21 to be formed, milling can be used for control, and the specific implementation modes include two types:
s211, when the milling cutter vertically processes the groove 11, a conical milling cutter is adopted, the transverse minimum width of the conical milling cutter is arranged at a cutter head, the transverse width of the cutter body is larger at the position, which is farther away from the cutter head, of the cutter body, and the other expression is that the diameter of the conical milling cutter is gradually reduced in the direction from the cutter body to the cutter head, and the shape of the groove 11 can be formed;
s212, when the milling cutter obliquely processes the groove 11, a cylindrical milling cutter can be utilized, the cylindrical milling cutter is obliquely arranged relative to the metal base body 100, the cutter head is deviated to the inner part of the groove, and the cutter body is deviated to the outer part of the groove. It will be appreciated that such tilting is typically achieved by tilting the substrate 100 on a numerically controlled milling machine.
S22, injecting plastic into the groove 11 to fill the second plastic body 002;
specifically, the injection molding filling in the groove 11 places the metal substrate 100 on a positioning jig of a dispenser, the first surface 01 faces upward, and a dispensing head of the dispenser is opposite to the groove 11, because the second plastic body 002 belongs to a process transition filler, the main concern lies in that the second plastic body 002 should be attached to the bottom surface of the groove 11 as full as possible, so as to facilitate the subsequent processing of the micro-seam 21. Because the second plastic body 002 is a process transition filler, when the second plastic body 002 is partially higher than the first surface 01 or partially lower than the first surface 01 after the injection molding is completed, the influence on the subsequent processes is not great.
S23, processing at least two micro-slits 21 on the second surface 02 opposite to the groove 11, wherein the processing depths of the at least two micro-slits 21 penetrate through the metal matrix 100 and reach the second plastic body 002;
specifically, the micro-slits 21 may be formed by cutting the metal substrate 100 by laser cutting. It is understood that the width of the micro-slits 21 is less than 0.3mm, and the laser cutting method is more suitable when the micro-slits 21 are smaller. Of course, in other embodiments, the width of the micro-slits 21 may be greater than or equal to 0.3 mm. Due to the filling of the second plastic body 002, the groove 11 can provide certain support for the processing of the micro-seam 21, and the self rigidity of the micro-seam 21 during processing is enhanced, so that the micro-seam 21 is not easy to deform such as torsion, inclination and the like during processing, the processing performance of the micro-seam 21 is improved, and the processing difficulty is reduced. Obviously, it is also possible to use a numerically controlled machine tool for machining said micro-slits 21, which allows to obtain a better surface quality.
S24, processing and removing the second plastic body 002 in the groove 11, so that the at least two micro-slits 21 are communicated through the groove 11;
specifically, since the depth of the at least two micro-slits 21 reaches from the second face 02 to the inside of the second plastic body 002, after the plastic body 001 is processed and removed, the at least two micro-slits 21 penetrate through the bottom surface of the groove 11, and a penetration path of at least two micro-slits 21 exists between the second face 02 and the first face 01, so that a clearance area structure required by the antenna is formed. Obviously, the second plastic body 002 can be removed by a numerical control machine, so that a better removal effect can be obtained.
S25, performing fillet treatment on the right angle of the frame strip 22 on the circumference of the end face of the groove 11;
specifically, the right-angled portion may be rounded by a forming tool, which is a mature process method and aims to form a fillet on the housing 200 to eliminate local stress concentration.
In addition, after the fillet process is completed, burrs or stains may exist on the inside, outside, or peripheral surface of the micro-cracks 21 and the grooves 11, and the surface of the metal base 100 is processed in order to facilitate filling of the micro-cracks 21.
S26, injecting plastic into the at least two micro-slits 21 and the groove 11 to fill the first plastic body 001;
in particular, with reference to fig. 6, the injection molding in said at least two micro-slits 21 is preferably provided before the injection molding action of said grooves 11. Since the optimum injection molding conditions for the micro-slits 21 are when both ends of the micro-slits 21 are in the passage. If the groove 11 is injection-molded first, one end of the micro-gap 21 is already filled with the first plastic body 001, and then the narrow micro-gap 21 is filled with the first plastic body, which makes it relatively difficult to control the generation of bubbles. It is understood that the first plastic body 001 should be flush with the second side 02 and the first side 01, at least not lower than the second side 02 or the first side 01.
Specifically, when filling in moulding plastics the micro-crack 21, will base member 100 is placed between point gum machine 300 and the tool 400 of breathing in, second face 02 orientation the tool 400 of breathing in, first face 01 just is right the dispensing head 310 of point gum machine 300, point gum machine 300 is to at least one the micro-crack 21 is glued in the point, simultaneously it is right to breathe in tool 400 the plastic glue in the micro-crack 21 is breathed in. Specifically, the base 100 is placed on the positioning fixture 410 of the dispenser 300 to ensure the alignment and tolerance between the dispensing head 310 of the dispenser 300 and the micro-gap 21, meanwhile, a plurality of through holes 401 are formed on the positioning fixture 410 to form the air suction fixture 400, and when the substrate 100 is placed on the positioning fixture 410, i.e. can be located between the dispensing head 310 of the dispenser 300 and the suction jig 400, the dispensing head 310 dispenses the micro-gap 21, the plurality of through holes 401 on the air suction jig 400 sucks the plastic glue in the corresponding micro-gap 21 to form negative pressure between the substrate 100 and the air suction jig 400, so that the plastic cement in the micro-gap 21 has fluidity and can flow from the first side 01 to the second side 02, and is uniformly filled in the micro-gap 21, so as to realize the complete filling of the plastic cement in the micro-gap 21.
Specifically, on the tool 400 of breathing in, it is right the breach department of slit 21 provides a barricade 420, it is a plurality of on the barricade 420 through-hole 401 can correspond first plastic body 001 is in the shaping location of slit 21 terminal surface.
S27, curing the first plastic body 001;
specifically, after the first plastic body 001 is cured, the filling of the micro-gap 21 is completed, no gap exists in the whole metal substrate 100, and the second surface 02 and the first surface 01 are flat.
S28, removing the part of the first plastic body 001 overflowing the second surface 02 and the first surface 01 by using a numerical control machine;
specifically, after the first plastic body 001 is filled and cured, a part of the first plastic body may overflow the second surface 02 or the first surface 01, or adhere to the surface of the metal substrate 100, which affects the appearance integrity of the metal substrate 100, so that the plastic on the metal substrate 100 is removed by using a numerical control machine. Preferably, a certain thickness of the metal material of the metal substrate 100 is taken out by a numerical control machine to completely take out the plastic on the surface of the metal substrate 100.
S29, performing at least one surface treatment of surface polishing, sand blasting or anodic oxidation on the metal substrate 100.
Specifically, the metal base 100 is subjected to at least one surface treatment of surface polishing, sand blasting, or anodizing. Wherein, the metal matrix 100 is subjected to surface treatment by means of anodic oxidation, so as to further improve the appearance consistency of the metal matrix 100.
The modules or units of the embodiments of the present invention can be combined or separated according to actual requirements.
The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.
Claims (13)
1. A shell manufacturing method is characterized by comprising the following steps:
processing a groove on the first surface of the metal substrate;
filling a second plastic body in the groove;
processing at least two micro-seams on the metal substrate, wherein the metal substrate further comprises a second surface opposite to the first surface, and the at least two micro-seams penetrate from the second surface to the groove;
removing the second plastic body in the groove;
filling a first plastic body in the at least two micro-seams and the groove and connecting the first plastic bodies filled in the at least two micro-seams and the groove into a whole; and
and curing the first plastic body.
2. A method of making a housing as claimed in claim 1, wherein the recess is machined in a numerically controlled machine tool using a taper cutter having a decreasing diameter in a direction from the body to the head.
3. The method of claim 1, wherein the recess is machined in a numerically controlled machine tool using a cylindrical milling cutter, the cylindrical milling cutter having a cutting head biased toward an interior of the recess and a cutting blade biased toward an exterior of the recess.
4. The method for manufacturing a casing according to claim 1, wherein a metal frame strip is formed between two adjacent micro-slits, and a circumference of an end surface of the frame strip facing the groove is rounded before the first plastic body is filled.
5. The method for manufacturing a housing according to claim 1, wherein the filling method of the first plastic body comprises:
and completing the dispensing action of the at least two micro-gaps and the groove through one dispensing action to form the integrated first plastic body.
6. The method of manufacturing a housing of claim 5, wherein the dispensing comprises:
placing the metal matrix between a dispenser and a suction jig;
the glue dispenser is used for dispensing glue to the at least two micro-gaps, and the air suction jig is used for sucking plastic glue in the at least two micro-gaps; and
and the glue dispenser dispenses the grooves.
7. The method for manufacturing a housing according to claim 6, wherein when the metal substrate is placed between the dispenser and the suction jig, the first surface faces a dispensing head of the dispenser, and the second surface faces the suction jig.
8. The method for manufacturing a shell according to claim 1, wherein after the first plastic body is cured, a portion of the first plastic body overflowing the second surface and the first surface is removed by a numerical control machine.
9. The method of claim 8, wherein the second side of the metal substrate is subjected to at least one of surface polishing, sand blasting, or anodizing after the first plastic body overflow is removed.
10. A shell, which is manufactured by the shell manufacturing method according to any one of claims 1 to 9, and which comprises a metal substrate and a first plastic body, wherein the metal substrate comprises a first surface and a second surface which are oppositely arranged, the first surface is provided with a groove, the second surface is provided with at least two micro-seams which are spaced from each other, the at least two micro-seams penetrate through the groove, the first plastic body is filled in the at least two micro-seams and the groove and is connected with the first plastic body filled in the at least two micro-seams and the groove into a whole, and the first plastic body is made of a non-signal shielding material; and frame strips extending along the first direction are formed between two adjacent micro-seams, and the peripheries of the end surfaces of each frame strip facing the groove are in fillet transition.
11. The housing according to claim 10, wherein two adjacent micro-slits form a frame strip extending along a first direction, the groove has a first opening width on the first surface in a cross section perpendicular to the first direction, the at least two micro-slits have a second opening width on the second surface between two side walls which are farthest away, and the first opening width is greater than or equal to the second opening width.
12. The housing of claim 11, wherein, in a cross-section perpendicular to the first direction, the recess is trapezoidal, a long side of the trapezoidal being an intersection line of the recess and the first face.
13. A mobile terminal, characterized in that it comprises a housing according to any of claims 10 to 12.
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| CN201711062267.3A CN107683050B (en) | 2017-10-31 | 2017-10-31 | Shell, mobile terminal and shell manufacturing method |
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| CN201711062267.3A CN107683050B (en) | 2017-10-31 | 2017-10-31 | Shell, mobile terminal and shell manufacturing method |
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| CN110582175A (en) * | 2018-07-03 | 2019-12-17 | 蓝思科技（长沙）有限公司 | Lens and electronic equipment cover plate assembling process, application and electronic equipment |
| CN114650673B (en) * | 2020-12-19 | 2024-02-06 | 富联裕展科技(深圳)有限公司 | Shell and processing method thereof |
| CN113708061B (en) * | 2021-08-27 | 2024-07-05 | Oppo广东移动通信有限公司 | Shell, preparation method of shell and electronic equipment |
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| CN103716426A (en) * | 2012-10-05 | 2014-04-09 | 三星电子株式会社 | Mobile terminal case and method of manufacturing the same |
| CN105530787A (en) * | 2014-12-26 | 2016-04-27 | 比亚迪股份有限公司 | Communication equipment metal shell and preparation method thereof |
| CN105530783A (en) * | 2014-12-26 | 2016-04-27 | 比亚迪股份有限公司 | Communication equipment metal shell and preparation method thereof |
| CN105792560A (en) * | 2014-12-24 | 2016-07-20 | 深圳富泰宏精密工业有限公司 | Shell, electronic apparatus applying shell, and manufacturing method for shell |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716426A (en) * | 2012-10-05 | 2014-04-09 | 三星电子株式会社 | Mobile terminal case and method of manufacturing the same |
| CN105792560A (en) * | 2014-12-24 | 2016-07-20 | 深圳富泰宏精密工业有限公司 | Shell, electronic apparatus applying shell, and manufacturing method for shell |
| CN105530787A (en) * | 2014-12-26 | 2016-04-27 | 比亚迪股份有限公司 | Communication equipment metal shell and preparation method thereof |
| CN105530783A (en) * | 2014-12-26 | 2016-04-27 | 比亚迪股份有限公司 | Communication equipment metal shell and preparation method thereof |
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