TW201330377A - Antenna cover structure for mobile device and method of manufacturing the same - Google Patents

Abstract

An antenna cover structure for a mobile device includes a substrate, an antenna, a filler, and a protective paint layer. The substrate has a first surface and a second surface corresponded to the first surface. The substrate has a through hole with an inner wall. The antenna includes a body and a connection section extended from the body. The body covers on the first surface and the connection section extends along the inner wall to cover the second surface. The filler is filled and formed inside the through hole. The protective paint layer covers on the first surface, the body, and the through hole. Therefore, the through hole, which is formed by directly forming the antenna by a laser processing, is filled by the filler to level a surface of the antenna cover, thus increasing appearance of the mobile device.

Description

Antenna housing structure for mobile device and manufacturing method thereof

The present invention relates to a housing structure and a manufacturing method thereof, and more particularly to an antenna housing structure for a mobile device and a manufacturing method thereof.

Laser Direct Structuring is a 3D-MID (Three-dimensional moulded interconnect device) production technology for laser processing, injection and electroplating. The principle is to give ordinary plastic components/circuit boards electrical interconnection. The function of supporting components and the support and protection of the plastic casing, as well as the functions of shielding, antenna and the like generated by the combination of mechanical entities and conductive patterns, form a so-called 3D-MID.

This technology can be applied to cell phone antennas, automotive electronic circuits, cash dispenser housings and medical grade hearing aids. The laser direct forming process is first activated by a laser beam, and a special chemical agent is used to activate the laser to cause a physical chemical reaction of the object into a metal core, in addition to activating and forming a rough surface, so that copper is in the metallization process. The plastic is rooted; the electroplating is carried out. This is the cleaning step in the direct laser forming process. The 5~8 micron circuit, such as copper and nickel, is plated on the metalized plastic surface used only as an electrode to make the plastic a MID component of the conductive line. Taking the mobile phone antenna as an example, the antenna can be prevented from being interfered by the metal inside the mobile phone, and the size of the mobile phone is further reduced.

However, when the mobile phone needs good receiving quality, the antenna is directly laser-exposed to the outside of the casing, and a uniform hole is formed in the casing, so that the antenna extends through a guiding section, and the guiding section is formed through the through hole to the casing. Inside the body, it is electrically connected to the circuit board inside the phone. However, the above-mentioned problem of causing a hole in the mobile phone case causes the surface of the casing to be uneven, thereby reducing the aesthetics of the mobile phone.

In view of the above, the inventors of the present invention have made great efforts to solve the above problems by focusing on the above-mentioned prior art, and have made great efforts to solve the above problems, which has become the object of development by the present inventors.

The object of the present invention is to provide an antenna housing structure for a mobile device and a manufacturing method thereof. The antenna is directly formed by laser, and a through hole is formed in the housing of the mobile device, which is filled with a filler. The through holes make the surface of the housing flat and uniform to increase the aesthetics of the mobile device.

In order to achieve the above object, the present invention provides an antenna housing structure for a mobile device, comprising: a substrate having a first surface and a second surface opposite to each other, and a uniform hole is formed in the substrate, the through hole An inner wall; an antenna having a body and a guiding portion extending from the body, the body covering the first surface, the guiding portion covering the second wall along the inner wall a surface; a filler filled in the through hole and cured; and a protective lacquer layer coated and shielded on the first surface, the body and the through hole.

In order to achieve the above object, the present invention provides a method for fabricating an antenna housing for a mobile device, the steps of which include:

a) covering the body on the first surface and causing the guiding section to cover the second surface along the inner wall;

b) providing a filling aid through which the filler is injected to fill the through hole;

c) curing the filler to cure the filler to fill the through hole;

d) coating and shielding the protective lacquer layer on the first surface, the body and the through hole.

The invention also has the following effects:

By using a Laser Direct Structuring process, an antenna is fabricated outside the housing of the mobile device, and the process must have a through hole in the housing, thereby causing a problem of holes in the housing; The invention has an antenna shell structure and a manufacturing method thereof, which utilizes a filler to fill the through hole, so that the surface of the substrate is flat and uniform, and at the same time, the protective lacquer layer of the subsequent coating is also maintained to maintain the surface flatness, so as to improve the aesthetics of the mobile device.

In addition, in the manufacturing method of the antenna housing of the present invention, the filling agent is dispensed by the filler, and the filler is injected into the through hole from the second opening along the inner wall, which can avoid the injection process in the filler and the through hole. Create bubbles.

Moreover, in the method for fabricating the antenna housing of the present invention, the stopper is attached and blocked by the stopper, so that the filler is stopped by the stopper, so as to obtain a better surface flatness after the filler is solidified.

The detailed description and technical content of the present invention will be described with reference to the accompanying drawings.

Referring to the first to third embodiments, the present invention provides an antenna housing structure for a mobile device and a manufacturing method thereof. The antenna housing structure mainly includes a substrate 1, an antenna 2, a filler 3, and A protective lacquer layer 4.

The substrate 1 has a first surface 11 and a second surface 12, and a uniform hole 13 is defined in the substrate 1. The through hole 13 has a first opening 131, a second opening 132 and an inner wall 133. The opening 131 is formed on the first surface 11 and the second opening 132 is formed on the second surface 12. The through hole 13 can be in a funnel shape and gradually reduced in size from the first opening 131 to the second opening 132, but is not limited thereto.

The antenna 2 has a body 21 and a guiding portion 22 extending from the body 21. The body 21 is coated on the first surface 11, and the guiding portion 22 is coated along the inner wall 133 to the second surface 12. As follows, the body 21 is plated on the first surface 11 by laser direct structuring (Laser Direct Structuring), and the guiding section 22 is plated through the through hole 13 to the second by laser direct structuring (Laser Direct Structuring). Surface 12.

The filler 3 is filled in the through hole 13 and solidified and formed; the filler 3 may be an acrylic curing adhesive such as an ultraviolet curing resin (UV adhesive), an instant adhesive, an SGA adhesive or an anaerobic adhesive.

The protective lacquer layer 4 is covered and shielded on the first surface 11, the body 21 and the through hole 13; wherein the protective lacquer layer 4 can be sprayed on the first surface 11, the body 21 and the through hole 13, but not This is limited to this.

The combination of the antenna housing structure of the mobile device of the present invention has a first substrate 11 and a second surface 12, and a through hole 13 is formed in the substrate 1. The through hole 13 has an inner wall 133; the antenna 2 having a body 21 and a guiding portion 22 extending from the body 21, the body 21 is coated on the first surface 11, and the guiding portion 22 is coated along the inner wall 133 to the second surface 12; the filler 3 is filled Formed in the through hole 13 and cured; the protective lacquer layer 4 is covered and shielded on the first surface 11, the body 21 and the through hole 13. By using a Laser Direct Structuring process, the antenna 2 is fabricated outside the housing of the mobile device, and the process must have a through hole 13 in the housing, thereby causing a problem of the hole in the housing; The antenna housing structure of the present invention fills the through hole 13 with the filler 3, so that the surface of the substrate 1 is flat and uniform, and the protective lacquer layer 4 for the subsequent coating is also maintained to maintain the surface flatness, so as to improve the appearance of the mobile device. Sex.

Referring to Figures 4 to 8, there is shown a step of fabricating a method for fabricating an antenna housing for a mobile device as described above, which is described in detail below.

As shown in steps a and fifth of the fourth figure, first, in a step, the body 21 is coated on the first surface 11 and the guiding section 22 is coated along the inner wall 133 to the second surface 12. As described in detail below, the through hole 13 has a first opening 131 and a second opening 132. The first opening 131 is formed on the first surface 11, the second opening 132 is formed on the second surface 12, and the through hole 13 is funnel-shaped. 13 is gradually reduced in size from the first opening 131 to the second opening 132; further, the laser beam is activated through the first surface 11, the second surface 12 and the second opening 132, so that the body 21 is directly formed by laser. The first surface 11 is plated, and the guiding portion 22 is plated through the through hole 13 to the second surface 12 by laser direct molding to form the antenna 2 on the substrate 1.

In addition, the antenna housing manufacturing method for the mobile device of the present invention further includes a step b' before the step b, wherein the b' step provides a stop assisting device 100, and the stop assisting device 100 is a tape. The stop aid 100 is fixed to the first surface 11 and blocks the first opening 131.

As shown in steps b and 6 of the fourth figure, in addition, in step b, a filling aid 200 is provided, and the filling agent 3 is injected through the filling aid 200 to be filled in the through hole 13. Wherein, the filling aid 200 is a needle 201, and the filler 3 may be an ultraviolet curing resin (UV glue), an instant glue, an SGA glue or an anaerobic adhesive, etc., and the needle 201 is along the inner wall. 133 is injected with the filler 3 into the through hole 13.

Thereby, since the filler 3 is dispensed by the needle 201, and the filler 3 is injected from the second opening 132 along the inner wall 133 into the through hole 13, it can avoid the injection process in the filler 3 and the through hole 13. Create bubbles.

As shown in the steps c and 7 of the fourth figure, in addition, in step c, the filler 3 is cured to cure the filler 3 to fill the through hole 13; and the filler 3 is used as the ultraviolet curing resin. For example, the curing process is to provide an ultraviolet lamp, and the ultraviolet lamp is irradiated to the ultraviolet curing resin.

Further, the method of fabricating the antenna housing for the mobile device of the present invention further includes a step d' before the step d, wherein the stop assisting device 100 is removed in the step d'. The above steps b' and d' can be omitted, but because the stopper assisting device 100 is attached and blocks the first opening 131, the filler 3 is stopped by the stopper assisting device 100 to obtain the filler 3 after curing. Preferred surface flatness.

As shown in steps d and VIII of the fourth figure, finally, in step d, the protective lacquer layer 4 is covered and shielded on the first surface 11, the body 21 and the through hole 13. The protective lacquer layer 4 can be sprayed on the first surface 11, the body 21 and the through hole 13, but not limited thereto.

Therefore, the antenna housing structure for the mobile device of the present invention and the method of fabricating the same can be obtained by the above-described structural composition.

Please refer to the ninth figure, which is a state of use of the antenna housing structure of the present invention, wherein the body 21 of the antenna 2 is formed on the first surface 11, that is, the antenna 2 is formed outside the housing of the mobile device, which is better. The receiving quality, but the guiding portion 22 must extend from the body 21 through the through hole 13 to the second surface 12, that is, to the inside of the housing of the mobile device, and electrically connected to the circuit board 400 through the conductive sheet 300.

However, the antenna 2 is formed outside the casing of the mobile device, and the process must have a through hole 13 in the casing, thereby causing a problem that the casing has a hole, thereby using the antenna casing structure of the mobile device of the present invention and The manufacturing method utilizes the filler 3 to fill the through hole 13, so that the surface of the substrate 1 is flat and uniform, and at the same time, the protective lacquer layer 4 for the subsequent coating is also maintained to maintain the surface flatness, so as to improve the aesthetics of the mobile device.

In summary, the antenna housing structure and the manufacturing method thereof for the mobile device of the present invention have not been seen in similar products and are used publicly, and have industrial utilization, novelty and progress, and fully comply with the requirements for invention patent applications. To file an application in accordance with the Patent Law, please check and grant the patent in this case to protect the rights of the inventor.

1. . . Substrate

11. . . First surface

12. . . Second surface

13. . . Through hole

131. . . First opening

132. . . Second opening

133. . . Inner wall

2. . . antenna

twenty one. . . Ontology

twenty two. . . Junction section

3. . . Filler

4. . . Protective paint

100. . . Stop aid

200. . . Filling aids

201. . . Needle

300. . . Conductive sheet

400. . . Circuit board

The first figure is a perspective view of the antenna housing structure of the present invention.

The second figure is another perspective view of the antenna housing structure of the present invention.

The third figure is a schematic cross-sectional view of the antenna housing structure of the present invention.

The fourth figure is a flow chart of the steps of the method for fabricating the antenna housing of the present invention.

The fifth figure is a schematic view of the stop aid of the present invention to block the first opening.

The sixth drawing is a schematic view of the filler of the present invention being filled in a through hole.

The seventh drawing is a schematic view of the curing treatment of the filler in the present invention.

The eighth figure is a schematic view of the protective paint layer of the present invention being covered and shielded on the first surface, the body and the through hole.

The ninth drawing is a schematic view showing the state of use of the antenna housing structure of the present invention.

1. . . Substrate

11. . . First surface

12. . . Second surface

13. . . Through hole

131. . . First opening

132. . . Second opening

133. . . Inner wall

2. . . antenna

twenty one. . . Ontology

twenty two. . . Junction section

3. . . Filler

4. . . Protective paint

Claims (10)

An antenna housing structure for a mobile device includes:
a substrate having a first surface and a second surface opposite to each other, and a uniform hole is formed in the substrate, the through hole having an inner wall;
An antenna having a body and a guiding portion extending from the body, the body covering the first surface, the guiding portion covering the second surface along the inner wall;
a filler filled in the through hole and cured; and a protective lacquer layer covering and shielding the first surface, the body and the through hole. The antenna device structure of the mobile device of claim 1, wherein the through hole has a first opening and a second opening, the first opening is formed on the first surface, and the second opening is formed in the antenna The second surface has a funnel shape, and the through hole gradually decreases in size from the first opening to the second opening. The mobile device according to claim 1, wherein the filler is an ultraviolet curing resin. The mobile device housing structure as claimed in claim 1, wherein the system is laser-plated on the first surface, and the guiding portion is directly formed by laser directing. The holes are plated to the second surface. The mobile device housing structure as claimed in claim 1 , wherein the protective lacquer layer is sprayed on the first surface, the body and the through hole. A method for fabricating an antenna housing for a mobile device according to any one of claims 1 to 5, wherein the steps include:
a) covering the body on the first surface and causing the guiding section to cover the second surface along the inner wall;
b) providing a filling aid through which the filler is injected to fill the through hole;
c) curing the filler to cure the filler to fill the through hole;
d) coating and shielding the protective lacquer layer on the first surface, the body and the through hole. The antenna device manufacturing method for the mobile device according to claim 6, further comprising a step b' before the step b and a step d' before the step d, wherein the stop is provided in the step b' The auxiliary hole has a first opening formed on the first surface, the stop aid is fixed on the first surface and blocks the first opening, and the stop aid is removed in the step d'. The method for manufacturing an antenna housing for a mobile device according to claim 7, wherein the stop aid is a tape. The method of manufacturing the antenna housing for the mobile device according to claim 6, wherein in the step b, the filling aid is a needle, and the needle is injected into the through hole along the inner wall. The method for fabricating an antenna housing for a mobile device according to claim 6, wherein in the step c, the filler is an ultraviolet curing resin, and the curing treatment is to provide an ultraviolet lamp, and the ultraviolet lamp is cured by the ultraviolet light. The resin is irradiated.