CN103779646A - Metal die-casting antenna and manufacturing process thereof - Google Patents
Metal die-casting antenna and manufacturing process thereof Download PDFInfo
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- CN103779646A CN103779646A CN201410046138.5A CN201410046138A CN103779646A CN 103779646 A CN103779646 A CN 103779646A CN 201410046138 A CN201410046138 A CN 201410046138A CN 103779646 A CN103779646 A CN 103779646A
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Abstract
The invention discloses a metal die-casting antenna. The metal die-casting antenna comprises an antenna body and an antenna support which is arranged corresponding to the antenna body. The antenna body and the antenna support are mutually assembled and connected to form the metal die-casting antenna. The antenna body is mainly formed in a die-casting mode through the die-casting process and provided with antenna feeding points, through holes corresponding to the antenna feeding points are formed in the antenna support and matched with the antenna feeding points, and therefore in the forming process of the metal die-casting antenna, the antenna feeding points penetrate through the through holes to make the antenna body and the antenna support assembled and connected to form an antenna assembly with a 3D structure. The antenna feeding points are connected with a main board of a mobile terminal when being connected with the mobile terminal. The metal die-casting antenna is formed in the die-casting mode and can adapt to the mobile terminal with the 3D structure. The strength and the accuracy of the antenna are effectively improved, and cost of batch production is greatly reduced.
Description
Technical field
The present invention relates to communication antenna technical field, relate in particular to die cast metal antenna and the manufacture craft thereof that can effectively adapt to 3D structure.
Background technology
At present, along with the development of the communication technology, the renewal of antenna part is rapid especially, and from external antenna to built-in aerial, from explicit antenna to implicit expression antenna, what the development speed of its antenna was being advanced by leaps and bounds is changing.Especially the fast development of radio communication in recent years, mobile terminal occupies very large leading position, and especially mobile phone terminal is progressively to miniaturization, intelligentized fast development, and become of crucial importance as mobile communication antenna.
In the prior art, the antenna form that mobile terminal adopts is conventionally metal elastic chip antenna, PCB/FPC antenna, LDS antenna and double-shot moulding antenna etc.; Generally, this metal elastic chip antenna normally by metal clips as radiating element, a kind of antenna form by non-conductive component as supporting module; This FPC antenna be a kind of be the antenna that carries radiating element with flexible PCB, this FPC antenna uses pressure sensitive adhesive tape Rapid pasting on antenna holder, handset shell or nonmetal components and parts conventionally; This LDS antenna is a kind ofly to make antenna holder by including the resin injection molding of metal, utilizes laser that needed antenna region is activated, then on region after activation, deposit two to three-layer metal the radiating element as antenna; And this double color injection antenna is a kind of two kinds of plastic raw materials to be expelled in mould in two steps, support a plastic stent, because a kind of plastics wherein can deposit upper metal, another plastics can not or very difficult plated metal, design by mould structure can plated metal by the region injection formed of formulating plastics, thereby make to have deposited region after metal and form the radiating element of antenna.But, although these several antennas have been all mature technology in the antenna structure of prior art,, these several antennas all can not effectively utilize at some labyrinths especially mobile terminal of 3D structure.Although this LDS antenna can maximum using three dimensions, the product design of formation is freer, and antenna adjustment is fairly simple, and its equipment investment cost is high.
Therefore, be necessary to propose that a kind of cost is lower, day line strength and precision better, and can be shaped to the comparatively 3D die cast metal antenna of labyrinth.
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Summary of the invention
In order to overcome the defect of prior art, it is lower that the present invention aims to provide a kind of cost, and day line strength and precision are better, by the die cast metal antenna of extrusion process moulding.
To achieve these goals, the invention provides a kind of manufacture craft of die cast metal antenna, for making a die cast metal antenna, comprise the steps:
S1: the structure of determining antenna holder;
S2: determine the needed 3D structure of this antenna according to the 3D structure of antenna holder, and the layout of definite antenna body and the structure of antenna body, and form an antenna body die casting;
S3: provide an antenna holder according to the antenna holder structure of step S1;
S4: according to the antenna body die casting of described step S2, by this antenna body of extrusion process die cast;
S5: described antenna body and described antenna holder are connected and form this die cast metal antenna with 3D structure.
Preferably, step S4 further comprises: on described antenna body, be provided with antenna feed point, and described antenna feed point is by this antenna feed point of die cast or by laser welding one this antenna feed point of shell foot moulding on described antenna body, or this antenna feed point is connected with described antenna body, and envelope is on this antenna holder.
Preferably, on described antenna holder, be provided with the through hole corresponding with described antenna feed point position, when described antenna body and the combination of described antenna holder, described antenna feed point runs through described through hole and is connected with the mainboard of a mobile terminal, thereby makes this mobile terminal by this die cast metal antenna reception or transmitted signal.
Preferably, described antenna body is SUS304 stainless steel or SUS316L stainless steel, and the thickness of described antenna body is 0.1-1.0mm, in concrete application process, the thickness of antenna body is 0.2-0.4mm, thereby antenna thickness and antenna performance after it is combined with antenna holder reach preferable states.
Preferably, described antenna holder is plastic cement antenna holder or cabinet, is convenient to the antenna body assembling with die cast.
The present invention also proposes a kind of die cast metal antenna, described die cast metal antenna comprises that one by the antenna body of 3D structure and the antenna holder of setting corresponding to described antenna body of extrusion process die cast, and described antenna body and described antenna holder are connected; On described antenna body, be provided with antenna feed point, and on described antenna holder, be provided with the through hole corresponding with described antenna feed point position; Described antenna feed point runs through described through hole and is connected with the mainboard of a mobile terminal.Can form the antenna module of a kind of labyrinth such as 3D structure by this die cast metal antenna.
Preferably, the material of described antenna body is SUS304 stainless steel or SUS316L stainless steel, and described antenna holder is plastic cement antenna holder or a cabinet; By this SUS304 stainless steel or this antenna body structure of SUS316L stainless steel die cast.Because extrusion process only need to provide a mould, needn't need more other step moulding, reduce in a large number antenna cost; , be connected with antenna body by this plastic cement antenna holder or cabinet, packaging technology is fairly simple meanwhile.
Preferably, the thickness of described antenna body is 0.1-1.0mm, effectively improve the intensity of antenna module, in concrete application process, the thickness of antenna body is 0.2-0.4mm, thereby antenna thickness and antenna performance after it is combined with antenna holder reach preferable states.
Preferably, described antenna feed point by die casting straight forming or on described antenna body laser welding shell foot form described antenna feed point, or this antenna feed point is connected with described antenna body, and envelope is on this antenna holder.
Preferably, be connected and form a die casting antenna with 3D structure by described antenna body and described antenna holder, make this die cast metal antenna can be applicable to have the mobile terminal of 3D structure.
Compared with prior art, beneficial effect of the present invention is as follows:
1, die cast metal antenna of the present invention forms this antenna body by extrusion process, and be connected and form this die cast metal antenna with this plastic cement antenna holder and plastic stent, and can moulding comparatively complicated structure, especially 3D structure, thus make this die cast metal antenna can be applicable to have the mobile terminal of complicated 3D structure.
2, die cast metal antenna of the present invention is by die cast metal technological forming, and extrusion process is utilized the three large key elements such as machine, mould and alloy exactly, by the process of pressure, speed and time unification, because this extrusion process is produced product, to have production efficiency high, operation is simple, higher grade of Casting tolerance, this die cast metal antenna is as the one of metal clips antenna, compared with metal clips antenna, its surface roughness is good, and mechanical strength is large, can save a large amount of machining operation and equipment, thereby can save material in a large number, reduce antenna cost; And passing through extrusion process moulding by mould, it is applicable to producing in enormous quantities, makes its cost lower.
3, die cast metal antenna of the present invention is by antenna body and support or assembling machine casing, due to corresponding setting the mutually of the through hole on distributing point and support on this antenna body, thereby thereby make this antenna body with between can make this distributing point run through through hole while assembling to be connected with the mainboard of mobile terminal, therefore, this both packaging technology is fairly simple, easily realize convenient operation.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the manufacture craft of die cast metal antenna of the invention process;
Fig. 2 is the antenna body structural representation of die cast metal antenna of the invention process;
Fig. 3 is the antenna holder structural representation of die cast metal antenna of the invention process;
Fig. 4 is the integrally-built front schematic view of die cast metal antenna of the invention process;
Fig. 5 is the integrally-built reverse side schematic diagram of die cast metal antenna of the invention process.
Symbol list:
10-die cast metal antenna, 11-antenna body, 12-antenna holder, 13-antenna feed point, 14-through hole, 15-3D structure.
embodiment:
Referring to the accompanying drawing that the embodiment of the present invention is shown, below will describe in more detail the present invention.But the present invention can be with realizations such as multi-form, specifications, and should not be construed as the restriction of the embodiment being subject in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes more relevant those skilled in the art person understand scope of the present invention completely.In these accompanying drawings, for clearly visible, may zoom in or out relative size.
As shown in Figures 2 to 5, a kind of die cast metal antenna provided by the invention, this die cast metal antenna 10 comprises antenna body 11 as shown in the figure and the antenna holder 12 with the corresponding setting of this antenna body 11, be that an antenna module is this die cast metal antenna by this antenna body 11 with the mutual assembly and connection of this antenna holder 12, this antenna body 11 is main by extrusion process die cast, on antenna body 11, be provided with feeder section, specifically can comprise two antenna feed points 13, and on this antenna holder 12, on the position of these antenna feed point 13 correspondences, be provided with two through holes 14, and this through hole 14 and antenna feed point 13 setting that cooperatively interacts, thereby in the process of this die cast metal antenna 10 of formation, this antenna feed point 13 runs through this through hole 14 makes this antenna body 11 form and have labyrinth as the antenna module of 3D structure with antenna holder 12 assembly and connections, and while use as antenna in this die cast metal antenna 10 is arranged on mobile terminal, this antenna feed point 13 is connected on the mainboard of this mobile terminal.
Wherein, in specific implementation process, the material of this antenna body 11 is SUS304 stainless steel or SUS316L stainless steel, and the thickness of this antenna body 11 is 0.1-1.0mm, concrete, in actual application, the thickness of this antenna body 11 is 0.2-0.4mm, thereby thickness and the antenna performance of the antenna module forming after itself and antenna holder 12 are assembled all can reach the state of relatively optimizing; And in the time making this antenna body 11, in predefined antenna body die casting, carry out die cast by extrusion process, thereby form this antenna body 11; Owing to needing feeder section in this antenna body 11, therefore the antenna feed point 13 of this antenna body 11 can make this antenna feed point 13 and antenna body 11 integrated die-casting moulding by extrusion process rheo-die-casting, also can on antenna body 11, make it form two antenna feed points 13 by two shell foots of laser welding, or this antenna feed point 13 is connected with this antenna body 11, and envelope on this antenna holder 12 as the feeder section of this antenna body 11.Because extrusion process only need to provide a mould, needn't need more other equipment and manufacture craft, reduce in a large number antenna cost.This antenna holder 12 be a plastic cement antenna holder or cabinet (be mobile terminal cabinet directly and antenna holder 12 be connected and fixed), in order to facilitate this antenna body 11 to be fixedly connected with antenna holder 12, on this antenna holder 12, be provided with through hole 14 corresponding to the position of this antenna feed point 13, thereby when this antenna body 11 is fixedly connected with antenna holder 12, run through this through hole 14 by this antenna feed point 13, thereby make together with antenna holder 12 is assembled into antenna body 11 by the support of this antenna holder 12.
And, in specific implementation process, as shown in Figure 4, together with this antenna body 11 is assembled into antenna holder 12, thereby form the die cast metal antenna 10 of 3D structure 15 as shown in the figure, and in concrete actual application, the die cast metal antenna of this 3D of having structure is applicable to the especially carrier of 3D structure of labyrinth, thereby can effectively utilize in the mobile terminal with labyrinth.And because this antenna structure is by extrusion process moulding, its structural strength and precision are all better than common metal shell fragment antenna, due to the corrosion resistance of this antenna material itself, after antenna body moulding, can avoid carrying out surperficial antirust corrosion protection processing; Meanwhile, because antenna material itself has solderability, for some complicated antennas, provide advantage, thereby this antenna can be produced in batches, and its cost is extremely low.
In addition, in specific implementation process, as shown in Figure 1, and the concrete manufacture method of this die cast metal antenna, the manufacture craft of its concrete die cast metal antenna comprises the steps:
S1: the structure of determining this antenna holder 12;
S2: determine the needed 3D structure of this antenna and determine the layout of antenna body 11 and the structure of antenna body 11 according to the 3D structure of antenna holder, and forming an antenna body die casting;
S3: provide an antenna holder 12 according to step S1, wherein, be provided with through hole 14 on this antenna holder 12, for making an antenna feed point 13 run through this through hole 14;
S4: according to the antenna body die casting of step S2, by this antenna body 11 of extrusion process die cast, wherein, on this antenna body 11, be provided with antenna feed point 13, and the setting corresponding to through hole 14 of this antenna feed point 13, runs through this through hole 14 by this antenna feed point 13 and makes this antenna body 11 and these antenna holder 12 assembly and connections;
S5: antenna body 11 and antenna holder 12 are connected and form this die cast metal antenna with 3D structure.
Concrete, the 3D structure of this die cast metal antenna is to realize by the die casting of antenna body.Because extrusion process belongs to Special Processes of Metal Castings technology, this antenna body need to match with the structure of this antenna holder simultaneously, and (this antenna holder is generally a part for housing or the housing of mobile terminal, its 3D structure is one of them curved surface etc.), therefore, need to first determine the structure of this antenna, then by this antenna body of die casting moulding of this antenna body.
Wherein, in specific implementation process, SUS304 stainless steel or SUS316L stainless steel process extrusion process die cast that this antenna body 11 is 0.2-0.4mm for thickness, this antenna feed point 13 can pass through this extrusion process and the 11 integrated die-casting moulding of this antenna body, also can form this antenna feed point 13 by the some shell foots of laser welding on this antenna body 11; And as shown in Figure 3, when this die cast metal antenna 10 is connected with mobile terminal, this antenna feed point 13 runs through this antenna holder 12 and is connected with the mainboard of mobile terminal.
In addition, we it should further be appreciated that, the present invention is not as limit, and the sequencing that each step of the manufacture method of the die cast metal antenna the present invention relates to is not limited to the present invention's proposition is limited, and this antenna holder and antenna body really definite sequence are not also limited successively; And, the stainless steel material of this antenna body is not also limited with this embodiment, also can carry out die cast by the stainless steel material of other types, thereby obtain the die casting antenna of metalloid spring-piece type antenna, and can form the die cast metal antenna with 3D structure with antenna holder assembling, improve the overall performance of this die cast metal antenna.
Obviously, those skilled in the art can carry out various changes and distortion and not depart from the spirit and scope of the present invention the present invention.Like this, if these modifications of the present invention and distortion belong in the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these and changes interior.
Claims (10)
1. a manufacture craft for die cast metal antenna, is characterized in that, comprises the steps:
S1: the structure of determining an antenna holder;
S2: determine the layout of an antenna body and the structure of antenna body according to the 3D structure of antenna holder, and form an antenna body die casting;
S3: provide an antenna holder according to the antenna holder structure of step S1;
S4: according to the antenna body die casting of described step S2, by the antenna body of this 3D structure of extrusion process die cast;
S5: described antenna body and described antenna holder are connected and form this die cast metal antenna with 3D structure.
2. the manufacture craft of die cast metal antenna according to claim 1, it is characterized in that, step S4 further comprises: on described antenna body, be provided with antenna feed point, and described antenna feed point is by this antenna feed point of die cast or by laser welding one this antenna feed point of shell foot moulding on described antenna body.
3. the manufacture craft of die cast metal antenna according to claim 2, it is characterized in that, on described antenna holder, be provided with the through hole corresponding with described antenna feed point position, when described antenna body and the combination of described antenna holder, described antenna feed point runs through described through hole and is connected with the mainboard of a mobile terminal.
4. the manufacture craft of die cast metal antenna according to claim 2, is characterized in that, described antenna body is SUS304 stainless steel or SUS316L stainless steel, and the thickness of described antenna body is 0.1-1.0mm.
5. the manufacture craft of die cast metal antenna according to claim 2, is characterized in that, described antenna holder is plastic cement antenna holder or cabinet.
6. a die cast metal antenna, make described die cast metal antenna by die cast metal antenna manufacture craft as claimed in claim 1, it is characterized in that, described die cast metal antenna comprises the antenna body of 3D structure and the antenna holder of setting corresponding to described antenna body of a die cast, and described antenna body and described antenna holder are connected; On described antenna body, be provided with antenna feed point, and on described antenna holder, be provided with the through hole corresponding with described antenna feed point position; Described antenna feed point runs through described through hole and is connected with the mainboard of a mobile terminal.
7. die cast metal antenna according to claim 6, is characterized in that, the material of described antenna body is SUS304 stainless steel or SUS316L stainless steel, and described antenna holder is plastic cement antenna holder or a cabinet.
8. according to the die cast metal antenna described in claim 6 or 7, it is characterized in that, the thickness of described antenna body is 0.1-1.0mm.
9. die cast metal antenna according to claim 6, is characterized in that, described antenna feed point by die casting straight forming or on described antenna body laser welding shell foot form described antenna feed point.
10. die cast metal antenna according to claim 6, is characterized in that, is connected and is formed a die casting antenna with 3D structure by described antenna body and described antenna holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046138.5A CN103779646A (en) | 2014-02-10 | 2014-02-10 | Metal die-casting antenna and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046138.5A CN103779646A (en) | 2014-02-10 | 2014-02-10 | Metal die-casting antenna and manufacturing process thereof |
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| CN103779646A true CN103779646A (en) | 2014-05-07 |
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| CN201410046138.5A Pending CN103779646A (en) | 2014-02-10 | 2014-02-10 | Metal die-casting antenna and manufacturing process thereof |
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| 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 |
| CN102205405A (en) * | 2011-05-11 | 2011-10-05 | 吴江市天龙机械有限公司 | Die casting process of aluminum alloy radiating element |
| CN202363575U (en) * | 2011-12-16 | 2012-08-01 | 上海华勤通讯技术有限公司 | FPC (Flexible print circuit) antenna |
| CN103078181A (en) * | 2013-02-06 | 2013-05-01 | 上海安费诺永亿通讯电子有限公司 | Cold-spray process antenna and preparation method thereof |
| CN103178322A (en) * | 2011-12-20 | 2013-06-26 | 深圳市长盈精密技术股份有限公司 | Method for fixing panel antenna |
| CN103313504A (en) * | 2013-05-30 | 2013-09-18 | 上海安费诺永亿通讯电子有限公司 | Film-free flexible printed circuit board and production method thereof |
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2014
- 2014-02-10 CN CN201410046138.5A patent/CN103779646A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549392A (en) * | 2003-05-16 | 2004-11-24 | 富士康(昆山)电脑接插件有限公司 | Antenna assembling method |
| CN2854836Y (en) * | 2005-05-17 | 2007-01-03 | 英华达(上海)电子有限公司 | Built-in antenna of mobile phone |
| CN1917282A (en) * | 2005-08-18 | 2007-02-21 | 三星电机株式会社 | Built-in antenna module of wireless communication terminal |
| CN101202370A (en) * | 2006-12-12 | 2008-06-18 | 哗裕实业股份有限公司 | Method for making antenna and antenna structure made by the method |
| 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 |
| CN102205405A (en) * | 2011-05-11 | 2011-10-05 | 吴江市天龙机械有限公司 | Die casting process of aluminum alloy radiating element |
| CN202363575U (en) * | 2011-12-16 | 2012-08-01 | 上海华勤通讯技术有限公司 | FPC (Flexible print circuit) antenna |
| CN103178322A (en) * | 2011-12-20 | 2013-06-26 | 深圳市长盈精密技术股份有限公司 | Method for fixing panel antenna |
| CN103078181A (en) * | 2013-02-06 | 2013-05-01 | 上海安费诺永亿通讯电子有限公司 | Cold-spray process antenna and preparation method thereof |
| CN103313504A (en) * | 2013-05-30 | 2013-09-18 | 上海安费诺永亿通讯电子有限公司 | Film-free flexible printed circuit board and production method thereof |
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Application publication date: 20140507 |