CN213278377U - Shell with built-in antenna - Google Patents
Shell with built-in antenna Download PDFInfo
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- CN213278377U CN213278377U CN202021690047.2U CN202021690047U CN213278377U CN 213278377 U CN213278377 U CN 213278377U CN 202021690047 U CN202021690047 U CN 202021690047U CN 213278377 U CN213278377 U CN 213278377U
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Abstract
The utility model discloses a built-in antenna's casing, including the casing, the casing includes first layer and the hardware of moulding plastics, and the first layer of moulding plastics is moulded plastics and is formed in the outer fringe of hardware, and the first layer of moulding plastics includes surface and internal surface, is equipped with the connectivity structure on the first layer of moulding plastics, the outer terminal surface of connectivity structure and around the outer terminal surface be equipped with first alligatoring layer on the surface on the first layer of moulding plastics, be equipped with first conducting layer on the first alligatoring layer, metal spraying forms first conducting layer on the first alligatoring layer, around first conducting layer and the first conducting layer be equipped with the second on the surface on the first layer of moulding plastics and mould plastics the layer, be equipped with the contact structure on the interior terminal surface of connectivity structure. The utility model has the advantages of can guarantee the yield, the defective rate is low, and is with low costs, easy processing operation, stable in structure is resistant to be beaten, resistant fall.
Description
Technical Field
The utility model belongs to the technical field of electronic equipment, concretely relates to built-in antenna's casing.
Background
The antenna of the existing electronic equipment such as the mobile phone is usually arranged in the mobile phone, corresponding electronic components are more and more along with the increase of the functions of the mobile phone, the utilization rate of the internal space of the mobile phone reaches the limit, the number of the antennas is obviously increased along with the arrival of the 5G era, in order to meet the requirement of antenna design, the antennas are inevitably required to be arranged on metal parts far away from the inside as much as possible, therefore, the mobile phone antenna is arranged on the external viewing side of the mobile phone shell, namely, the antenna is not arranged in the mobile phone to become the mainstream, a method for preparing the antenna on the shell is appeared in the market, the shell prepared by the method finally needs to be polished on the appearance surface of the shell and then sprayed with paint, in the process of spraying paint after polishing the appearance surface, the yield cannot be ensured, the defect is easily increased, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a casing that can guarantee the yield, the defective rate is low, with low costs built-in antenna.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a built-in antenna's casing, includes the casing, and the casing includes first layer and the hardware of moulding plastics, and the first layer of moulding plastics is moulded plastics and is formed in the outer fringe of hardware, and first layer of moulding plastics includes surface and internal surface, and first is moulded plastics and is equipped with the connectivity structure on the layer, the outer terminal surface of connectivity structure and around the outer terminal surface be equipped with first alligatoring on the surface on the first layer of moulding plastics and handle the layer, be equipped with first conducting layer on the first alligatoring layer, and metal spraying forms first conducting layer on the first alligatoring layer, around first conducting layer and the first conducting layer be equipped with the second on the surface on the first layer of moulding plastics and mould plastics the layer, be equipped with the contact structure on the interior terminal.
Preferably, the communication structure is an embedded support made of metal, and two ends of the embedded support are respectively connected with the first conducting layer and the contact structure.
Preferably, the contact structure comprises a second coarsening layer and a second conducting layer, the second coarsening layer is arranged on the inner end face of the communicating structure, the second conducting layer is positioned on the inner side face of the second coarsening layer, and the first conducting layer and the second conducting layer are respectively formed by one or more layers of metal particles or powder coatings.
Preferably, the diameter of the metal particles is 2 to 100 μm.
Preferably, the thickness of the first conductive layer and the second conductive layer is 0.02-0.5 mm.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
the method for manufacturing the antenna on the shell has appeared in the prior art, the shell manufactured by the method finally needs to polish the appearance surface of the shell and then spray paint, the polishing quality is not controlled well in the process of polishing the shell with the antenna on the surface, the phenomenon of high fraction defective is easily caused, the cost is increased, and the shell is sprayed paint after polishing, the cost of spraying paint is high, the polishing step is directly omitted, the second injection molding layer is directly formed on the first conducting layer and the outer surface of the shell around the first conducting layer by adopting the injection molding mode, the cost is greatly reduced by adopting the injection molding mode and spraying paint on the second injection molding layer compared with the mode of spraying paint after polishing, the polishing step is omitted, the yield is ensured, the phenomenon of high fraction defective is avoided, and the second injection molding layer formed by adopting the injection molding mode can play a better protection role on the first conducting layer, the structure is stable, the falling resistance is realized, the treatment on the appearance surface of the shell is simplified, and the processing operation is easy;
to sum up, the utility model has the advantages of can guarantee the yield, the defective rate is low, and is with low costs, easy processing operation, stable in structure is resistant to be beaten, resistant fall.
Drawings
Fig. 1 is a schematic structural diagram of the present invention with hardware removed.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, the utility model discloses a casing of built-in antenna, including the casing, the casing includes first layer 1 and the hardware of moulding plastics, and first layer 1 of moulding plastics is moulded plastics and is formed in the outer fringe of hardware, and first layer 1 of moulding plastics includes surface and internal surface, is equipped with the connectivity structure on first layer 1 of moulding plastics, the outer terminal surface of connectivity structure and around the outer terminal surface be equipped with first alligatoring layer 2 on the surface of first layer 1 of moulding plastics, set up corresponding antenna pattern groove position on first alligatoring layer 2, this antenna pattern groove position has certain degree of depth, and is 0.01-0.1mm lower than the surface of casing usually, fills up this antenna pattern groove position through the metal spraying technique to form corresponding first conducting layer 3, is equipped with first conducting layer 3 on first alligatoring layer 2, and first conducting layer 3 can form connecting wire, the outer edge of the casing, Connection structure such as antenna, promptly first conducting layer 3 be the antenna promptly, the utility model discloses do not specifically prescribe a limit to the interconnecting link structure that first conducting layer 3 formed, metal coating forms first conducting layer 3 on first alligatoring processing layer 2, around first conducting layer 3 and the first conducting layer 3 be equipped with the second on the first surface of moulding plastics layer 1 and mould plastics layer 4, the setting on first layer 1 and the second of moulding plastics layer 4 can be protected first conducting layer 3, compares with prior art, need not to polish, if polish, the yield when polishing can't control, causes the cost to rise, is equipped with the contact structure on the interior terminal surface of open structure.
The communication structure is pre-buried support 5 of metal material, and pre-buried support 5's both ends are connected with first conducting layer 3 and contact structure respectively, and the communication structure has realized switching on of first conducting layer 3 and second conducting layer 7.
Another preferred scheme the connectivity structure is the preformed hole, the preformed hole can be the preformed hole of any shape in circular, rectangle, triangle-shaped, ellipse, irregular polygon, the preformed hole can also be three through-holes, the utility model discloses do not limit to the concrete structure of preformed hole, be equipped with in the preformed hole and run through the preformed hole and with first conducting layer 3 fixed connection's connecting piece, the connecting piece passes through dissimilar metal welding technology and forms in the preformed hole, or the connecting piece forms in the preformed hole through pouring into electrically conductive solidifiable liquid, or the connecting piece forms in the preformed hole through filling metal class conductor, the dissimilar metal welding technology of the utility model definition specifically refers to the metal spraying technology and adopts the metal spraying technology to spray zinc or phosphor bronze material in the preformed hole in order to form the connecting piece promptly, specifically, the shape of the connecting piece is matched with that of the preformed hole, and the connecting piece is in any one shape of a circle, a rectangle, a triangle, an ellipse and an irregular polygon.
The contact structure comprises a second coarsening layer 6 and a second conducting layer 7, the contact structure extends near the inner end face of the embedded support 5 or the spraying layer according to different specific communication modes (connected by the embedded support 5 or connected by the spraying layer) and different positions (the position of the embedded support 5 or the position of the spraying layer) of a product in a specific production process, the second coarsening layer 6 is arranged on the inner end face of the communication structure, the second conducting layer 7 is positioned on the inner side face of the second coarsening layer 6, and the first conducting layer 3 and the second conducting layer 7 are respectively formed by one or more layers of metal particles or powder coatings.
The first conductive layer 3 and the second conductive layer 7 are respectively one or more of a zinc coating, a zinc alloy coating, a tin alloy coating, an aluminum alloy coating, a copper coating or a copper alloy coating.
An object of the utility model is to provide a preparation method of built-in antenna's casing to prior art not enough, including following step:
s1, taking the hardware formed by die casting, and forming a first injection layer 1 on the outer edge of the hardware by injection molding along the outer edge of the hardware by using injection molding equipment, wherein the first injection layer 1 is provided with an embedded support 5 made of a metal material, and the first injection layer 1 and the hardware form a shell, wherein the hardware is a die casting part which is formed by die casting by a die casting machine, the hardware is not limited to be made by die casting, and the hardware can be made by CNC (computer numerical control) or other processes;
s2, shielding the outer surface and the inner surface of the shell (shielding the outer surface and the inner surface of the first injection layer 1 and the outer surface and the inner surface of the hardware), exposing the areas needing to be sprayed on the outer surface and the inner surface of the shell, namely shielding the areas needing not to be sprayed with metal, exposing the areas needing to be sprayed with metal, wherein the shell can be fixed on a shielding jig in a shielding treatment mode, the shielding jig covers the areas, needing not to be sprayed with metal, of the shell, and the areas needing to be sprayed with metal are exposed;
s3, processing corresponding antenna pattern groove positions at the end part of one end of the embedded bracket 5 positioned at the outer side and the area, needing metal spraying, of the outer surface of the first injection molding layer 1 at the periphery of the end part, wherein the depth value of the antenna pattern groove positions is 0.01-0.1 mm;
s4, performing surface treatment on the antenna pattern groove to form the first roughened layer 2;
s5, performing surface treatment on the end part of one end of the embedded bracket 5 positioned at the inner side and the inner surface of the first injection layer 1 around the end part to form the second coarsening treatment layer 6;
s6, spraying metal particles or powder on the first coarsening layer 2 through a metal spraying technology to form the first conducting layer 3, connecting the first conducting layer 3 with one end of the embedded bracket 5 positioned at the outer side, wherein the thickness of the first conducting layer 3 is 0.02-0.5mm, the metal spraying technology comprises thermal spraying and cold spraying, the diameter of the metal particles is 2-100 mu m, the thermal spraying refers to a technology that the metal or nonmetal materials in powder or wire shape are heated to a molten or semi-molten state by utilizing a certain heat source (such as electric arc, plasma spraying or combustion flame and the like), and then the metal or nonmetal materials are sprayed on the surface of a processed substrate at a certain speed by means of telling gas to deposit and form surface coatings with various functions; cold spraying means that metal particles are not melted in the whole spraying process, compressed air is utilized to accelerate the metal particles, the metal particles are flattened on the surface of a substrate and are firmly attached, in the embodiment, a conductive material is selected as a material of a coating layer, and a conductive layer is formed by spraying, in addition, different mixed materials can be further included in the material of the coating layer, so that the coating layer has one or more performances in the aspects of wear resistance, corrosion resistance, oxidation resistance, heat conduction and the like while obtaining the conductive performance;
s7, spraying metal particles or powder on the second roughened layer 6 by using a metal spraying technology to form a second conductive layer 7, and connecting the second conductive layer 7 with one end of the embedded bracket 5 at the inner side, wherein the thickness of the second conductive layer 7 is 0.02-0.5mm, the second conductive layer 7 can be formed by using a metal spraying mode or by using an LDS technology or a PDS technology, specifically, the LDS technology is a laser direct forming technology, namely, a metal antenna is formed by directly plating on the bracket by using a laser engraving technology, more specifically, the second conductive layer 7 is formed on the second laser roughened layer 6 by using a laser engraving machine, the PDS technology is a technology of coating a conductive material on the surface of a workpiece by using a plane printing technology, and then forming a conductive three-dimensional circuit by using a copper plating or multilayer silver paste printing mode, more specifically, forming the second conductive layer 7 by copper plating or multilayer silver paste printing on the second roughened layer 6, similarly, the first conductive layer 3 (i.e. the antenna) may also be formed by another process (e.g. an LDS or PDS process), which is based on the premise that the process can be used in combination with an injection molding process;
s8, removing the masking in step S2, specifically, removing the masking jig or the included thin layer material used in step S2;
s9, forming a second injection molding layer 4 on the outer surface of the first injection molding layer 1 around the first conductive layer 3 and the first conductive layer 3 by using injection molding equipment again, covering the outer surface of the first conductive layer 3 and the whole first injection molding layer 1 by the second injection molding layer 4 to protect the first injection molding layer 1 and the first conductive layer 3, compared with the prior art, the first injection molding layer 1 around the first conductive layer 3 and the first conductive layer 3 is not required to be polished, and the shell around the polished first conductive layer 3 and the first conductive layer 3 is required to be sprayed with paint to form a paint spraying layer which is usually formed by a 'five-coating five-baking' process (the prior art does not detailed specific process any more), the cost is high, and when the shell around the first conductive layer 3 and the first conductive layer 3 is polished, the yield cannot be controlled, and artificial defects are easily caused, increased the cost, the cost is higher, directly adopt the mode of moulding plastics to form first layer 1 and the second layer 4 of moulding plastics, need not to polish, it is with low costs, and the yield can be controlled, can not cause artificial bad, first layer 1 and the second of moulding plastics are moulded plastics and are moulded plastics layer 4 and have beat resistant, resistant characteristic of falling, can play better guard action to first conducting layer 3, and the second mould plastics layer 4 and mould plastics the completion back, can directly spray paint at the surface on second layer 4 of moulding plastics, form the paint spraying layer, it is very mature technique to spray paint on second layer 4 of moulding plastics, and should spray paint the layer and utilize "three roast" technologies of three paintings of "to accomplish, the cost is lower.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (3)
1. A housing with an internal antenna, comprising: including the casing, the casing includes first layer and the hardware of moulding plastics, and the first layer of moulding plastics is moulded plastics and is formed in the outer fringe of hardware, and first layer of moulding plastics includes surface and internal surface, and first injection moulding is equipped with the connectivity structure on the layer, the outer terminal surface of connectivity structure and around the outer terminal surface be equipped with first alligatoring treatment layer on the surface on the first layer of moulding plastics, be equipped with first conducting layer on the first alligatoring treatment layer, metal spraying forms first conducting layer on the first alligatoring treatment layer, around first conducting layer and the first conducting layer be equipped with the second on the surface on the first layer of moulding plastics and mould plastics the layer, be equipped with the contact structure on the interior terminal surface of connectivity structure.
2. A built-in antenna casing as defined in claim 1, wherein: the communication structure is a pre-buried support made of metal materials, and two ends of the pre-buried support are connected with the first conducting layer and the contact structure respectively.
3. A built-in antenna casing as defined in claim 2, wherein: the contact structure comprises a second coarsening layer and a second conducting layer, the second coarsening layer is arranged on the inner end face of the communicating structure, the second conducting layer is positioned on the inner side face of the second coarsening layer, and the first conducting layer and the second conducting layer are respectively formed by one or more layers of metal particles or powder coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021690047.2U CN213278377U (en) | 2020-08-13 | 2020-08-13 | Shell with built-in antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021690047.2U CN213278377U (en) | 2020-08-13 | 2020-08-13 | Shell with built-in antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213278377U true CN213278377U (en) | 2021-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021690047.2U Active CN213278377U (en) | 2020-08-13 | 2020-08-13 | Shell with built-in antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213278377U (en) |
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2020
- 2020-08-13 CN CN202021690047.2U patent/CN213278377U/en active Active
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