CN112272479A - Middle frame, mobile terminal and manufacturing method of middle frame - Google Patents
Middle frame, mobile terminal and manufacturing method of middle frame Download PDFInfo
- Publication number
- CN112272479A CN112272479A CN202011344823.8A CN202011344823A CN112272479A CN 112272479 A CN112272479 A CN 112272479A CN 202011344823 A CN202011344823 A CN 202011344823A CN 112272479 A CN112272479 A CN 112272479A
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- China
- Prior art keywords
- frame
- middle frame
- waterproof
- supporting
- antenna strip
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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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
- H05K5/06—Hermetically-sealed 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
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
Abstract
The invention provides a middle frame which comprises a metal supporting frame and a waterproof frame, wherein the metal supporting frame comprises a supporting plate and an antenna strip arranged around the supporting plate in a surrounding mode, at least one supporting block is arranged on the outer peripheral surface of the antenna strip in a protruding mode, the waterproof frame covers the antenna strip, and the outer side face of at least one supporting block is exposed out of the waterproof frame. The waterproof frame enables the supporting plate to be connected with the antenna strip in a sealing mode, and therefore the waterproof effect of the middle frame is good. In addition, the supporting shoe on the antenna strip outer peripheral face exposes waterproof frame to improved the signal radiation and the receiving efficiency of antenna strip, just show the supporting shoe on the outer peripheral face of center, thereby can reach the effect of preventing that the metal numerical control machine tool processing center nanometer moulds plastics the antenna strip. The invention also provides a mobile terminal with the middle frame and a manufacturing method of the middle frame.
Description
Technical Field
The invention relates to the field of shells of mobile terminals, in particular to a middle frame, a mobile terminal with the middle frame and a manufacturing method of the middle frame.
Background
The middle frames of the existing mobile terminals such as mobile phones, tablet computers and the like are generally integrated hardware injection molding middle frames. As shown in fig. 1 to 3, the hardware injection molding middle frame includes a metal frame body 300 and a plastic frame body 500, the metal frame body 300 is generally made by die casting, and the plastic frame body 500 is generally made by injection molding. The process flow of the integrated hardware injection molding middle frame is generally as follows: die-casting medium plate five metals forms the metal framework, right the metal framework is moulded plastics and is formed metal insert, right metal insert's outward appearance surface treatment, adopt digit control machine tool processing even material position, side opening and equipment auxiliary material.
The metal frame body 300 comprises a support plate 301 located in the middle, antenna strips 303 arranged around the support plate 301, and metal connecting materials 305, wherein the metal connecting materials 305 are connected between the support plate 301 and the antenna strips 303 so as to enhance the rigidity of the antenna strips 303. The plastic frame 500 covers the surface of the metal frame 300. Because the metal between backup pad 301 and antenna strip 303 is even material 305 is not the needs of five metals center of moulding plastics, consequently, metal frame body 300 adopts digit control machine tool to process to get rid of above-mentioned metal even material 305 after moulding plastics. However, when the metal connecting material 305 is removed by a numerical control machine, the waterproof surface of the plastic frame 500 is cut off, that is, a plurality of notches 501 are formed on the waterproof surface of the plastic frame 500, which affects the waterproof effect of the hardware injection molding middle frame.
Disclosure of Invention
The invention aims to provide a middle frame with a good waterproof effect, a mobile terminal with the middle frame and a manufacturing method of the middle frame.
In order to solve the technical problem, the invention provides a middle frame which comprises a metal supporting frame and a waterproof frame, wherein the metal supporting frame comprises a supporting plate and an antenna strip arranged around the supporting plate in a surrounding manner, at least one supporting block is arranged on the outer peripheral surface of the antenna strip in a protruding manner, the waterproof frame covers the antenna strip, and the outer side surface of at least one supporting block is exposed out of the waterproof frame.
The invention also provides a mobile terminal which comprises a middle frame, a display screen arranged on the front surface of the middle frame, a main control board arranged on the middle frame and a battery, wherein the battery is used for supplying power to the display screen and the main control board, and the display screen and the battery are electrically connected with the main control board.
The invention also provides a manufacturing method of the middle frame, which comprises the following steps:
die casting a metal material to prepare a die cast;
placing the die casting into a mold, and injecting a liquid plastic material into the mold to form a rough blank of the middle frame;
and carrying out continuous cutting treatment on the rough blank so as to form the middle frame.
The middle frame comprises a metal supporting frame and a waterproof frame covering the metal supporting frame, and the waterproof frame enables the supporting plate to be connected with the antenna strip in a sealing mode, so that the middle frame is good in waterproof effect. In addition, the supporting shoe on the antenna strip outer peripheral face exposes waterproof frame to improved the signal radiation and the receiving efficiency of antenna strip, just show the supporting shoe on the outer peripheral face of center, thereby can reach the effect of preventing that the metal numerical control machine tool processing center nanometer moulds plastics the antenna strip.
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 perspective view of a metal frame body of a middle frame in the prior art;
FIG. 2 is a schematic perspective view of a metal insert formed by injection molding the metal frame of FIG. 1;
FIG. 3 is a schematic perspective view of the metal insert of FIG. 2 after being machined and connected by a numerically controlled machine;
FIG. 4 is a schematic perspective view of a middle frame in an embodiment of the present invention;
FIG. 5 is a perspective view of the middle frame of FIG. 4 from another perspective;
FIG. 6 is a perspective exploded view of the middle frame of FIG. 4;
FIG. 7 is a perspective exploded view of the middle frame of FIG. 5;
FIG. 8 is a partial perspective cross-sectional view of the middle frame of FIG. 4;
FIG. 9 is a perspective exploded view of the middle frame of FIG. 8;
FIG. 10 is a schematic illustration of a process for manufacturing the middle frame of the present invention;
FIG. 11 is a flow chart of one embodiment of a method of manufacturing the middle frame of the present invention;
FIG. 12 is a flow chart of another embodiment of a method of manufacturing a bezel of the present invention;
fig. 13 is a schematic perspective view of a mobile terminal in an embodiment 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.
Furthermore, the following description of the various embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. Directional phrases used in this disclosure, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed at … …" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 4 to 9, in one embodiment of the present invention, the middle frame 100 includes a metal supporting frame 20 and a waterproof frame 40, the metal supporting frame 20 includes a supporting plate 21 and an antenna strip 23 surrounding the supporting plate 21, at least one supporting block 24 is protruded on an outer circumferential surface of the antenna strip 23, the waterproof frame 40 covers the antenna strip 23, and an outer side 241 of the at least one supporting block 24 is exposed out of the waterproof frame 40. The support plate 21, the antenna strip 23 and the waterproof frame 40 are connected in a sealing manner.
In this embodiment, the middle frame 100 may be, but is not limited to, a middle frame of a product such as a mobile phone, a tablet computer, a television, a smart watch, a VR head-mounted display, a vehicle-mounted display, and the like. The middle frame 100 is used for accommodating electronic devices such as a main control panel and a battery.
The middle frame 100 comprises a metal supporting frame 20 and a waterproof frame 40 covering the metal supporting frame 20, wherein the waterproof frame 40 enables the supporting plate 21 to be hermetically connected with the antenna strip 23, and therefore the waterproof effect of the middle frame 100 is good. In addition, supporting shoe 24 on the antenna strip 23 exposes waterproof frame 40 to improved antenna strip 23's signal radiation and receiving efficiency, just show supporting shoe 24 on the outer peripheral face of center 40, thereby can reach the effect of preventing the nanometer antenna strip of moulding plastics of hardware numerical control machine tool processing center.
The antenna strip 23 with be equipped with gap 25 between the backup pad 21, the antenna strip 23 with connect through connecting block 26 between the backup pad 21, waterproof frame 40 covers gap 25. The waterproof frame 40 covers the connecting block 26, and the connecting block 26 is exposed out of the waterproof frame 40 toward the inner side surface 261 of the support plate 21. In this embodiment, the supporting plate 21 is a rectangular plate, a plurality of antenna strips 23 are arranged around the front surface of the supporting plate 21, each antenna strip 23 is connected to the supporting plate 21 at least through one connecting block 26, and a circle of the antenna strips 23 is arranged along the periphery of the supporting plate 21. Namely, the antenna strips 23 and the supporting plate 21 enclose a receiving space 210 for receiving electronic devices such as a main control board and a battery. The supporting plate 21 is provided with a plurality of ribs 211 in the accommodating space 210 to enhance the strength of the metal supporting frame 20. The connecting block 26 protrudes from the corresponding antenna strip 23 to one side of the accommodating space 210, and the supporting block 24 protrudes from the corresponding antenna strip 23 to one side away from the accommodating space 210.
The number of the supporting blocks 24 on the outer circumferential surface of the antenna strip 23 may be determined according to the length of the antenna strip 23 extending along the circumferential direction of the supporting plate 21: if the length of the antenna strip 23 is short, a supporting block 24 is arranged at one end of the outer peripheral surface of the antenna strip 23, and a connecting block 26 is arranged at the other end of the inner peripheral surface of the antenna strip 23; if the length of the antenna strip 23 is a medium length, two opposite ends of the outer peripheral surface of the antenna strip 23 are respectively provided with a supporting block 24, and a connecting block 26 is arranged at the position, close to the middle, of the inner peripheral surface of the antenna strip 23; if the length of the antenna strip 23 is long, a plurality of supporting blocks 24 are arranged on the outer circumferential surface of the antenna strip 23 at intervals, and two or more connecting blocks 26 are arranged on the inner circumferential surface of the antenna strip 23. In this embodiment, the first end of the supporting plate 21 is provided with two shorter antenna strips 23, two corners of the first end of the supporting plate 21 are respectively provided with the antenna strips 23 with high and medium lengths, and the second end opposite to the supporting plate 21 and two sides opposite to the supporting plate 21 are respectively provided with the antenna strips 23 with long lengths.
In this embodiment, each support block 24 is a bar-shaped block extending perpendicular to the top surface of the support plate 21. In other embodiments, each support block 24 may be a cylinder, an elliptic cylinder, a polygonal cylinder, etc. protruding outward from the outer circumferential surface of the antenna strip 23.
An antenna slot 27 is arranged between every two adjacent antenna strips 23, and each antenna slot 27 is communicated with the gap 25. The width of the antenna groove 27 is substantially the same as the width of the gap 25, and the waterproof frame 40 covers the antenna groove 27 and the gap 25 together when covering the metal support frame 20.
The waterproof frame 40 includes a top waterproof sheet 41 hermetically covering the top surface of the antenna strip 23, an inner waterproof sheet 43 hermetically covering the inner circumferential surface of the antenna strip 23, an outer waterproof sheet 45 hermetically covering the outer circumferential surface of the antenna strip 23, a waterproof strip 47 hermetically filled in the gap 25, and a filling strip 48 hermetically filled in the antenna groove 27. The top waterproof sheet 41, the inner waterproof sheet 43, and the outer waterproof sheet 45 are hermetically connected, and the top waterproof sheet 41, the inner waterproof sheet 43, and the outer waterproof sheet 45 enclose an accommodation groove 46 for accommodating the antenna strip 23. A flange 412 is arranged at the top of the intersection of the top waterproof sheet 41 and the outer waterproof sheet 45, the flange 412 extends along the periphery of the top waterproof sheet 41, and a positioning space 415 for accommodating a display screen is defined by the top waterproof sheet 41 and the flange 412. The inner waterproof sheet 43 is provided with a plurality of accommodating openings 431 corresponding to the plurality of connecting blocks 26, and each accommodating opening 431 penetrates through the bottom surface of the waterproof frame 40. The outer waterproof sheet 45 is provided with a plurality of accommodating holes 451 corresponding to the plurality of supporting blocks 24, and each accommodating hole 451 extends to the corresponding waterproof strip 47. The top surface is a surface in the same direction as the light-emitting surface of the display screen on the middle frame 100, the inner circumferential surface is a circumferential surface facing the accommodating space 210 of the middle frame 100, and the outer circumferential surface is a circumferential surface facing away from the accommodating space 210 of the middle frame 100.
Referring to fig. 4 to 9, when the waterproof frame 40 covers the antenna strip 23, the top waterproof sheet 41 is attached to the top surface of the antenna strip 23; the inner waterproof sheet 43 is attached to the inner circumferential surface of the antenna strip 23, and the supporting blocks 24 are respectively accommodated in the accommodating holes 451; the outer waterproof sheet 45 is attached to the outer circumferential surface of the antenna strip 23, and the plurality of connecting blocks 26 are respectively accommodated in the plurality of accommodating ports 431, the plurality of waterproof strips 47 are respectively accommodated in the plurality of gaps 25, and the plurality of filling strips 48 are respectively accommodated in the plurality of antenna grooves 27. Each support block 24 is hermetically received in the corresponding receiving hole 451, that is, the outer circumferential surface of the support block 24 is hermetically attached to the inner circumferential wall of the receiving hole 451. Each connecting block 26 is hermetically received in the corresponding receiving opening 431, that is, the top surface and the two opposite side surfaces of the connecting block 26 are hermetically attached to the inner peripheral wall of the receiving opening 431. Each waterproof strip 47 is sealingly received in a corresponding slot 25 and each filler strip 48 is sealingly received in a corresponding antenna slot 27. Therefore, the waterproof frame 40 and the metal support frame 20 are connected to form the middle frame 100 with an open top and a sealed bottom and periphery, that is, the bottom and periphery of the accommodating space 210 are sealed, so as to prevent external dust, liquid and other impurities from entering the accommodating space 210 from the bottom and periphery walls of the middle frame 100. The outer waterproof sheet 45 is exposed from one side of each supporting block 24, which is far away from the accommodating space 210, and the inner waterproof sheet 43 is exposed from one side of each connecting block 26, which faces the accommodating space 210, so that the signal radiation and receiving efficiency of the antenna strip 23 can be improved; and the metal supporting block 24 can be seen from the outside of the middle frame 100, so that the middle frame 100 can achieve the effect of imitating the nanometer injection molding antenna strip of the hardware numerical control machine processing middle frame.
Preferably, the outer side surface 241 of the supporting block 24 is coplanar with the outer circumferential surface 453 of the waterproof frame 40, and the inner side surface 261 of the connecting block 26 is coplanar with the inner circumferential surface 433 of the waterproof frame 40. Specifically, the outer side surface 241 of the support block 24 is coplanar with the outer circumferential surface 453 of the outer waterproof sheet 45, that is, the thickness of the support block 24 is the same as that of the outer waterproof sheet 45. The inner surface 261 of the connecting block 26 is coplanar with the inner circumferential surface 433 of the inner waterproof sheet 43, that is, the thickness of the connecting block 26 is the same as that of the inner waterproof sheet 43.
Preferably, the thickness of the top waterproof sheet 41, the thickness of the inner waterproof sheet 43, and the thickness of the outer waterproof sheet 45 are the same.
In this embodiment, the metal support frame 20 is manufactured by a die casting process, and the waterproof frame 40 is formed by performing injection molding on the metal support frame 20.
Referring to fig. 10 to 11, the manufacturing method of the middle frame 100 of the present invention includes:
s100, die-casting a metal material to prepare a die-casting piece; namely, liquid metal is injected into a first die to carry out die casting treatment so as to prepare a die casting. The die casting at least comprises a metal supporting frame 20 and a plurality of supporting blocks 24 arranged on the peripheral surface of the metal supporting frame 20. Specifically, the die casting formed by die casting the liquid metal through the first die comprises a metal support frame 20, a hardware outer frame 600 surrounding the metal support frame 20 at intervals, and a support block 24 connected between the metal support frame 20 and the hardware outer frame 600; each support block 24 is connected to the hardware frame 600 and the corresponding antenna strip 23.
S200, placing the die casting into a second mold, and injecting a liquid plastic material into the second mold to form a rough blank of the middle frame. Specifically, the antenna strip 23 of the metal support frame 20 and one end of the support blocks 24 close to the metal support frame 20 are subjected to insert injection molding, a non-metal filling layer is formed on a die casting, and the metal and the non-metal are integrally formed to form a rough blank of the middle frame 100. The rough blank comprises a metal supporting frame 20 and a waterproof frame 40 covering the metal supporting frame 20, wherein the waterproof frame 40 comprises a top waterproof sheet 41 covering the top surface of the antenna strip 23, an inner side waterproof sheet 43 connected to the inner periphery of the top waterproof sheet 41 and attached to the inner peripheral surface of the antenna strip 23, and an outer side waterproof sheet 45 connected to the outer periphery of the top waterproof sheet 41 and attached to the outer peripheral surface of the antenna strip 23. Waterproof strips 47 are filled in each gap 25, and a plastic material is filled in each antenna slot 27; the inner side surface of each connecting block 26 is coplanar with the inner circumferential surface of the waterproof frame 40, and the periphery of each supporting block 24 is wrapped with a plastic material.
The hardware outer frame 600 and the supporting block 24 of the die casting can enhance the rigidity strength of the antenna strip 23, and the antenna strip 23 is prevented from being deformed by high-pressure plastic in the insert injection molding process.
S300, performing continuous cutting processing on the rough blank of the middle frame to form the middle frame. Specifically, a plurality of the supporting blocks 24 are cut to form the middle frame 100. Specifically, the hardware bezel 600 and the supporting blocks 24 close to the hardware bezel 600 are not required for the antenna strip 23 of the middle frame, and therefore, the intersection of each supporting block 24 and the outer waterproof sheet 45 is cut by numerical control machine processing, thereby removing the continuous material. When the numerical control machine tool is used for processing, the outer peripheral surface of the outer waterproof sheet 45 is processed to avoid only processing the supporting block 24, so that the supporting block 24 and the outer waterproof sheet 45 are prevented from having a step difference, the outer side surface 241 of the supporting block 24 and the outer peripheral surface 453 of the outer waterproof sheet 45 are coplanar, the appearance quality of the middle frame 100 is improved, and the problem that the antenna strip 23 shrinks can be solved.
Preferably, the continuous material is cut and processed by adopting a forming force, so that the processing efficiency is high, the processing time of a numerical control machine is short, and the cost is reduced.
According to the manufacturing method of the middle frame 100, metal is firstly adopted to form a die casting in a die casting mode, then the die casting is placed into a die to be subjected to insert injection molding, and then a numerical control machine is adopted to perform machining, cutting and removing continuous materials. The manufacturing method can directly die-cast each structure of the middle frame, the surface of the die-cast piece is smooth, the die-cast piece is prevented from being processed by a numerical control machine tool to remove flash, burr, flash and the like generated in the die-casting process, the processing time is saved, the production efficiency is improved, and the production and manufacturing cost is reduced; secondly, the supporting blocks 24 are arranged outside the middle frame, namely the supporting blocks 24 are positioned outside the antenna strip 23 and are not limited by the internal structure and space of the middle frame, the number and the distribution positions of the supporting blocks 24 can be set according to the requirement of a product, and the degree of freedom is high; in addition, the die casting is formed with a plurality of antenna slots 27 in the die casting process, so that the antenna slots 27 are prevented from being formed by machining through a numerical control machine tool subsequently, and the machining time is saved, thereby improving the production efficiency of products and reducing the production and manufacturing cost; in addition, when the continuous material is cut and removed by a numerical control machine, only the outer surfaces of each supporting block 24 and the outer waterproof sheet 45 are cut, so that the waterproof of the waterproof frame 40 cannot be cut through or damaged in the process of cutting and removing the continuous material, the waterproof of the middle frame 100 is not affected, and the middle frame 100 has a good waterproof effect.
As shown in fig. 12, after step S300, the method further includes:
and S400, performing appearance surface treatment on the middle frame 100 after the cutting treatment. Specifically, the outer peripheral surface of the middle frame 100 is treated by sandblasting, polishing, wire drawing, etching, or the like. The surface treatment is the same as that in the prior art and is not described in detail herein.
And S500, assembling auxiliary materials for the middle frame 100.
The steps of the manufacturing method of other embodiments include:
preparing a plate; the plate is a metal plate with a substantially rectangular shape.
Die-casting the metal plate to prepare a die-cast part; the die casting encloses including pressing metal support frame, interval and locates metal support frame metal frame on every side, and connect in metal support frame with supporting shoe between the metal frame, just be equipped with a plurality of side openings on the metal support frame.
Placing the die casting in a mold, and injecting a liquid plastic material into the mold to form a rough blank of the middle frame; and processing the die casting in the injection molding process to obtain the middle frame side hole.
Cutting the blank of the middle frame to form the middle frame; specifically, the intersection of each support block 24 and the outer waterproof sheet 45 is cut by a numerical control machine tool, so that the continuous material is removed.
The cut center 100 is subjected to an appearance surface treatment.
And assembling auxiliary materials for the middle frame.
In the manufacturing method of the embodiment, the side holes of the middle frame can be processed by a plastic mold instead, so that the service time of the numerical control machine tool is further reduced, and the cost is reduced.
Referring to fig. 13, the present invention further provides a mobile terminal having the middle frame 100, where the mobile terminal includes the middle frame 100, a display screen 120 disposed on the front surface of the middle frame 100, a main control board 140 and a battery 160 disposed on the middle frame 100, the battery 160 is used to provide power for the display screen 120 and the main control board 140, and the display screen 120, the battery 160 and the antenna strip 23 are electrically connected to the main control board 140. Specifically, the main control board 140 and the battery 160 are accommodated in the accommodating space 210 (shown in fig. 4) of the middle frame 100, the display screen 120 is accommodated in the positioning space 415 (shown in fig. 4) of the middle frame 100, and the display screen 120, the top waterproof sheet 41 and the flange 412 are fixedly connected to each other through waterproof glue, so as to prevent dust or liquid from entering the interior of the middle frame 100 from the connection between the display screen 120 and the waterproof frame 40. The lateral surface 241 of supporting shoe 24 exposes the outer peripheral face of center 100 has not only improved the signal radiation and the receiving efficiency of antenna, and can reach the effect of preventing the nanometer antenna of moulding plastics of hardware numerical control machine tool processing center.
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 (14)
1. The middle frame is characterized by comprising a metal supporting frame and a waterproof frame, wherein the metal supporting frame comprises a supporting plate and an antenna strip arranged around the supporting plate in a surrounding mode, at least one supporting block is arranged on the outer peripheral surface of the antenna strip in a protruding mode, the waterproof frame covers the antenna strip, and the outer side face of at least one supporting block is exposed out of the waterproof frame.
2. The middle frame according to claim 1, wherein a gap is formed between the antenna strip and the support plate, the antenna strip and the support plate are connected through a connecting block, the waterproof frame covers the gap, the waterproof frame covers the connecting block, and the inner side face of the connecting block is exposed out of the waterproof frame.
3. The middle frame according to claim 2, wherein the supporting plate and the antenna strip enclose a receiving space, the connecting block faces the receiving space, and the supporting block faces away from the receiving space.
4. The middle frame according to claim 2, wherein the outer side surface of the supporting block is coplanar with the outer circumferential surface of the waterproof frame, and the inner side surface of the connecting block is coplanar with the inner circumferential surface of the waterproof frame.
5. The middle frame according to claim 2, wherein the waterproof frame includes a top waterproof sheet hermetically covering a top surface of the antenna strip, an inner waterproof sheet covering an inner circumferential surface of the antenna strip, and an outer waterproof sheet covering an outer circumferential surface of the antenna strip, and the top waterproof sheet, the inner waterproof sheet, and the outer waterproof sheet are connected.
6. The middle frame according to claim 5, wherein the outer side surface of the support block is coplanar with the outer circumferential surface of the outer waterproof sheet, and the inner side surface of the connection block is coplanar with the inner circumferential surface of the inner waterproof sheet.
7. The middle frame according to claim 5, wherein the inner waterproof sheet is provided with a receiving opening corresponding to the connecting block, and the connecting block is received in the receiving opening; the outer waterproof sheet is provided with accommodating holes corresponding to the supporting blocks, and the supporting blocks are accommodated in the accommodating holes.
8. The middle frame according to claim 1, wherein the waterproof frame covers the antenna slot between two adjacent antenna strips.
9. The middle frame according to claim 1, wherein the metal support frame is manufactured using a die casting process, and injection molding is performed on the metal support frame to form the waterproof frame.
10. A mobile terminal, comprising the middle frame according to any one of claims 1 to 9, a display screen disposed on a front surface of the middle frame, and a main control board and a battery disposed on the middle frame, wherein the battery is used for providing the display screen and the main control board, and the display screen and the battery are electrically connected to the main control board.
11. A manufacturing method of a middle frame is characterized in that: the method comprises the following steps:
die casting a metal material to prepare a die cast;
placing the die casting into a mold, and injecting a liquid plastic material into the mold to form a rough blank of the middle frame;
and carrying out continuous cutting treatment on the rough blank to form the middle frame.
12. The manufacturing method according to claim 11, wherein said "die-casting the metal material to prepare a die-cast article" includes injecting a liquid metal into a die to perform a die-casting process to prepare a die-cast article.
13. The manufacturing method according to claim 11, wherein said "die-casting a metal material to prepare a die-cast article" includes: and die-casting the metal plate to prepare a die-cast part.
14. The manufacturing method according to claim 11, further comprising, after the step of performing the cutting process of the continuous material on the blank of the middle frame: and performing appearance surface treatment on the cut middle frame.
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| CN202011344823.8A CN112272479B (en) | 2020-11-25 | 2020-11-25 | Middle frame, mobile terminal and manufacturing method of middle frame |
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| CN202011344823.8A CN112272479B (en) | 2020-11-25 | 2020-11-25 | Middle frame, mobile terminal and manufacturing method of middle frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113572874A (en) * | 2021-07-22 | 2021-10-29 | Oppo广东移动通信有限公司 | Middle frame of electronic equipment, method and jig for machining middle frame |
| TWI762184B (en) * | 2021-02-05 | 2022-04-21 | 群邁通訊股份有限公司 | Fixing device and display panel assembly method |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5781705A (en) * | 1980-11-11 | 1982-05-21 | Nec Corp | Antenna device |
| CN101652040A (en) * | 2008-08-15 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | Casing component embedded with antenna and manufacturing method thereof |
| WO2014024031A1 (en) * | 2012-08-07 | 2014-02-13 | Gorilvosky Dmitry Alekseevich | Mobile electronic device chassis |
| US8861198B1 (en) * | 2012-03-27 | 2014-10-14 | Amazon Technologies, Inc. | Device frame having mechanically bonded metal and plastic |
| CN204167466U (en) * | 2014-11-18 | 2015-02-18 | 惠州硕贝德无线科技股份有限公司 | A kind of metal edge frame multifrequency loop antenna |
| CN108258425A (en) * | 2018-01-16 | 2018-07-06 | 广东欧珀移动通信有限公司 | Antenna module, center component and electronic equipment |
| CN108323061A (en) * | 2018-03-09 | 2018-07-24 | 广东欧珀移动通信有限公司 | A kind of center, electronic device and center production method |
| CN108337335A (en) * | 2018-01-17 | 2018-07-27 | 广东长盈精密技术有限公司 | The processing method of metal center and metal center |
| CN108565538A (en) * | 2018-04-02 | 2018-09-21 | Oppo广东移动通信有限公司 | Antenna module, housing unit and electronic equipment |
| CN109728415A (en) * | 2018-12-28 | 2019-05-07 | 维沃移动通信有限公司 | A kind of wireless electronic communication apparatus |
| CN110011025A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system and mobile terminal |
| CN110212287A (en) * | 2019-05-15 | 2019-09-06 | 华为技术有限公司 | A kind of antenna module, center component and mobile terminal |
| US10431872B1 (en) * | 2018-04-05 | 2019-10-01 | Lg Electronics Inc. | Mobile terminal |
| WO2020135177A1 (en) * | 2018-12-28 | 2020-07-02 | 维沃移动通信有限公司 | Wireless electronic communication device |
| CN111641739A (en) * | 2020-05-15 | 2020-09-08 | 广东长盈精密技术有限公司 | Middle frame, electronic equipment and middle frame manufacturing method |
-
2020
- 2020-11-25 CN CN202011344823.8A patent/CN112272479B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5781705A (en) * | 1980-11-11 | 1982-05-21 | Nec Corp | Antenna device |
| CN101652040A (en) * | 2008-08-15 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | Casing component embedded with antenna and manufacturing method thereof |
| US20100039347A1 (en) * | 2008-08-15 | 2010-02-18 | Chi Mei Communication Systems, Inc. | Housing functioning as an antenna and method for fabricating the same |
| US8861198B1 (en) * | 2012-03-27 | 2014-10-14 | Amazon Technologies, Inc. | Device frame having mechanically bonded metal and plastic |
| WO2014024031A1 (en) * | 2012-08-07 | 2014-02-13 | Gorilvosky Dmitry Alekseevich | Mobile electronic device chassis |
| CN204167466U (en) * | 2014-11-18 | 2015-02-18 | 惠州硕贝德无线科技股份有限公司 | A kind of metal edge frame multifrequency loop antenna |
| CN108258425A (en) * | 2018-01-16 | 2018-07-06 | 广东欧珀移动通信有限公司 | Antenna module, center component and electronic equipment |
| CN108337335A (en) * | 2018-01-17 | 2018-07-27 | 广东长盈精密技术有限公司 | The processing method of metal center and metal center |
| CN108323061A (en) * | 2018-03-09 | 2018-07-24 | 广东欧珀移动通信有限公司 | A kind of center, electronic device and center production method |
| CN108565538A (en) * | 2018-04-02 | 2018-09-21 | Oppo广东移动通信有限公司 | Antenna module, housing unit and electronic equipment |
| US10431872B1 (en) * | 2018-04-05 | 2019-10-01 | Lg Electronics Inc. | Mobile terminal |
| CN109728415A (en) * | 2018-12-28 | 2019-05-07 | 维沃移动通信有限公司 | A kind of wireless electronic communication apparatus |
| WO2020135177A1 (en) * | 2018-12-28 | 2020-07-02 | 维沃移动通信有限公司 | Wireless electronic communication device |
| CN110011025A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system and mobile terminal |
| CN110212287A (en) * | 2019-05-15 | 2019-09-06 | 华为技术有限公司 | A kind of antenna module, center component and mobile terminal |
| CN111641739A (en) * | 2020-05-15 | 2020-09-08 | 广东长盈精密技术有限公司 | Middle frame, electronic equipment and middle frame manufacturing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762184B (en) * | 2021-02-05 | 2022-04-21 | 群邁通訊股份有限公司 | Fixing device and display panel assembly method |
| CN113572874A (en) * | 2021-07-22 | 2021-10-29 | Oppo广东移动通信有限公司 | Middle frame of electronic equipment, method and jig for machining middle frame |
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